CN110292411B - Tissue clamping device - Google Patents
Tissue clamping device Download PDFInfo
- Publication number
- CN110292411B CN110292411B CN201910719593.XA CN201910719593A CN110292411B CN 110292411 B CN110292411 B CN 110292411B CN 201910719593 A CN201910719593 A CN 201910719593A CN 110292411 B CN110292411 B CN 110292411B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- clamping
- elastic
- clip
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000009471 action Effects 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims description 46
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003908 quality control method Methods 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 description 11
- 230000002439 hemostatic effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000023597 hemostasis Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- 206010018691 Granuloma Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
- A61B17/1285—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/122—Clamps or clips, e.g. for the umbilical cord
- A61B17/1227—Spring clips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Reproductive Health (AREA)
- Surgical Instruments (AREA)
Abstract
The present application provides a tissue clamping device comprising: an operating assembly and a collet assembly. In practical application, the operation wire in the operation assembly can drive the elastic release piece to move, so that the clamp in the clamp head assembly can slide in the sleeve, and the clamp can be opened and closed for multiple times through the self elasticity of the clamp and the action of the wall of the sleeve. The elastic release piece is restrained and released by the inner wall of the sleeve, so that the detachable connection between the groove in the middle of the clip and the connecting part at the far end of the elastic release piece is realized. The tissue clamping device provided by the application has the advantages of simple structure, stable connection, easiness in batch and stable manufacturing, and capability of greatly reducing the production process cost and the quality control cost.
Description
Technical Field
The application relates to the technical field of endoscopic medical instruments, in particular to a tissue clamping device.
Background
The tissue clamping device is a minimally invasive surgical instrument and is commonly used for hemostasis of wound surfaces in a patient, such as hemostasis of digestive tracts and the like. The tissue clamping device can be delivered to the operation position in the patient through the endoscope forceps channel, and the clamping operation is carried out outside the body to complete the hemostatic treatment. Typically, after hemostatic treatment by the tissue occluding device, the local tissue inflammatory process forms granulomas that self-shed and exit the body through the alimentary canal. So that the operation has the advantages of small injury, high hemostatic speed, low occurrence rate of the rebleeding, less complication, definite curative effect and the like.
A typical tissue gripping device includes a jaw member, an introduction member, and an operating member. In practical application, the jaw components and the leading-in component can be sent into the alimentary canal of a patient through an endoscope forceps channel, so that the jaw components reach a preset operation position in the patient, then the operation component is used for implementing the operation action, the implemented operation action is transferred to the jaw components through the leading-in component, so that the jaw components generate action response, and the operation wound is subjected to hemostasis or clamping operation. The jaw members are then separated from the lead-in member by the operating member so that the jaw members residing within the patient clamp the blood vessel and surrounding tissue for hemostatic occlusion. Typically the jaw members are metal hemostatic clamps or the like.
In order to achieve separation between the jaw member and the lead-in member, the tissue clamping device is typically provided with a deformable structure at the proximal (tail) end of the metal hemostatic clip to facilitate separation between the jaw member and the lead-in member by the force transmitted by the lead-in member. However, the deformable structure causes instability in the connection between the jaw members and the lead-in member, so that the tissue clamping device is often only opened and closed once. The endoscope work environment limits the precision of the procedure by the operator so that the jaw members cannot be fully clamped at a time. Therefore, the success rate of the surgery of the conventional tissue clamping device is low. In addition, the conventional tissue clamping device has a clamping function and a rotating function. The device has the advantages of relatively complex structure, high manufacturing cost and quality control cost, and low use stability due to the added functions of the device.
Disclosure of Invention
The application provides a tissue clamping device, which fully utilizes the self elastic characteristic of materials, realizes the basic functions of required clamping, locking and the like by an extremely simple structure, simultaneously realizes important functions of repeated opening, closing, rotation and the like, and solves the problems of complex structure, large number of parts and adverse processing, manufacturing and quality control of the traditional tissue clamping device.
The present application provides a tissue clamping device comprising: an operating assembly and a collet assembly detachably connected to the operating assembly; wherein the collet assembly comprises a clip and a sleeve; the clip is provided with two sheet-shaped clip arms with an integrated structure, and the clip is arranged in the sleeve close to the far end position; the operation assembly comprises an elastic release piece and a separation outer barrel; the elastic release piece is detachably connected with the middle parts of the two clamping arms of the clamp so as to enable the clamp to be opened and closed for a plurality of times, the separation outer barrel is arranged at the proximal end of the sleeve, and the separation outer barrel is detachably connected with the sleeve;
The middle parts of the two clamping arms of the clamp are provided with clamping parts, and the far ends of the elastic release pieces are provided with connecting parts matched with the clamping parts; the connecting arm of the elastic release piece is shaped into an outward-stretching bending structure, so that the connecting arm of the elastic release piece can be compressed by the inner wall of the sleeve to generate elastic deformation; the connecting part can enter the clamping part, so that the connecting part is separated from the clamping part when the connecting arm of the elastic release piece leaves the inner wall of the sleeve.
Optionally, the clamping part is a groove; the connecting part is a connecting groove, and the clamping part is matched with the connecting part through buckling of the groove and the connecting groove.
Optionally, the two side edges of the middle parts of the two clamping arms of the clamp are respectively provided with the groove; the elastic release piece comprises two connecting arms with the same shape, and the distal end of each connecting arm is provided with the connecting part.
Optionally, a limiting groove is formed in the distal end face of the sleeve; a guide piece is arranged on a clamping arm of the clamp; the guide piece can enter the limit groove and contact the bottom of the limit groove.
Optionally, the operation assembly further comprises an elastic connecting piece, a connecting hole is formed in the sleeve, and a clamping groove is formed in the inner wall of the separation outer barrel; the elastic connecting piece passes through the connecting hole and is arranged in the clamping groove so as to realize that the separation outer barrel is detachably connected with the sleeve.
Optionally, the elastic connecting piece is a bendable elastic piece.
Optionally, a guide groove is formed in the sleeve, and an elastic protruding portion arranged in the guide groove is formed in the clamping arm of the clamp, and the elastic protruding portion can slide in the guide groove, so that the clamping piece can be switched between an open state and a closed state.
Optionally, a twisting tip is arranged on the sleeve; the twisting tip is of a sheet-shaped structure obliquely arranged on the circumferential surface of the sleeve; the twisted tip can enter a clamping groove on the inner wall of the separation outer cylinder so as to realize the separable connection of the separation outer cylinder with the sleeve.
Optionally, the sleeve is provided with a connecting hole collinear with the guide groove, and the elastic protruding part on the clip arm comprises a plurality of hanging tables; a hanging table near the proximal end of the clip can enter the connecting hole from the guide groove so as to lock the clip in the sleeve.
Optionally, the tissue clamping device further comprises: a catheter, an operating wire, and a handle;
The proximal end of the separation outer barrel is connected with the handle through the catheter; the operation wire is arranged in the catheter and can move in the catheter; the distal end of the operating wire is connected with the elastic release piece, and the proximal end of the operating wire is connected with the sliding part on the handle so as to control the clip to complete opening and closing actions.
As can be seen from the above technical solution, the present application provides a tissue clamping device, comprising: an operating assembly and a collet assembly. In practical application, the operation wire in the operation assembly can drive the elastic release piece to move, so that the clamp in the clamp head assembly can slide in the sleeve, and the clamp can be opened and closed for multiple times through the self elasticity of the clamp and the action of the wall of the sleeve. The middle clamping part of the clamp is detachably connected with the distal connecting part of the elastic release piece through the restraint and release restraint of the inner wall of the sleeve to the elastic release piece. The tissue clamping device provided by the application has the advantages of simple structure, stable connection, easiness in batch and stable manufacturing, and capability of greatly reducing the production process cost and the quality control cost.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic view of a tissue clamping device according to the present application;
FIG. 2 is a schematic cross-sectional view of a tissue clamping device according to the present application;
FIG. 3 is a schematic view of a clip according to the present application;
FIG. 4 is a schematic view of an elastic release member according to the present application;
FIG. 5 is a schematic view of a sleeve according to the present application;
FIG. 6 is a schematic view of a separating outer cylinder according to the present application;
FIG. 7 is a schematic view of a connecting piece according to the present application;
FIG. 8 is a schematic view of a tissue gripping device in a separation stage of the present application;
FIG. 9 is a schematic view of another sleeve according to the present application;
FIG. 10 is a schematic view of another clip according to the present application;
FIG. 11 is a schematic view of another embodiment of the elastic release member of the present application;
FIG. 12 is a schematic view of a structure of a clamping portion according to an embodiment of the present application;
fig. 13 is a schematic structural view of a connection portion according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the examples below do not represent all embodiments consistent with the application. Merely exemplary of systems and methods consistent with aspects of the application as set forth in the claims.
In the technical scheme provided by the application, for convenience of description, one end of the whole device placed in a human body is called a far end, and the far end is mainly used for performing operation action on tissues; the end located outside the body is called the proximal end and is intended primarily for manipulation by the operator. The distal end of each component is referred to herein as the end proximal to one side of the body and the proximal end of each component is referred to herein as the end proximal to one side of the body, unless otherwise indicated.
Referring to fig. 1, a schematic structure of a tissue clamping device according to the present application is shown. Referring to fig. 2, a schematic cross-sectional view of a tissue clamping device according to the present application is shown. As can be seen from fig. 1 and 2, the tissue clamping device provided by the present application includes: an operating assembly 1 and a chuck assembly 2 which are detachably connected with each other. The collet assembly 2 includes a clip 21 and a sleeve 22. In practice, the clip 21 is arranged at the distal end of the sleeve 22 and is capable of sliding in the sleeve 22 to form a clamping space for clamping the wound surface of the patient, i.e. the clip 21 is arranged in the sleeve 22 near the distal end.
In order to achieve the clamping action and repeated opening and closing; the clip 21 is provided with two sheet-like clip arms of unitary construction. As shown in fig. 3, the clip 21 may be forged or stamped from a sheet-like structure of spring sheet. When no force is applied, the two arms of the clip 21 maintain a certain opening angle with each other, i.e. the two arms have a V-shaped structure. In practical application, the inner wall of the sleeve 22 can apply an acting force to the back of the clamping arm of the clamp 21, so that the angle between the two mutually opened clamping arms can be reduced in the process that the clamp 21 is moved in the proximal direction, namely, the two clamping arms are mutually closed. After the arms are fully closed, the entire clip 21 assumes a folded state. When the clip 21 moves in the distal direction, the acting position of the inner wall of the sleeve 22 on the clip arm changes, that is, the arm of force is changed, and the clip 21 can be opened and closed again by virtue of the elastic action of the clip 21.
Therefore, in the technical scheme provided by the application, the clip 21 is moved towards the proximal direction, and the two clip arms can be closed through the limit function of the sleeve 22; moving the clip 21 in a distal direction, the arms of the clip 21 can return to the open state by the elastic action of the material itself. In addition, in order to make the operation more flexible, the clip 21 should be made of a material with better elasticity, and the thickness of the position where the two clip arms of the clip 21 are connected should not be excessively large, so as to reduce the driving force requirement under the premise of ensuring the elastic effect.
In practical application, as shown in fig. 3 and 5, since the sleeve 22 is generally in a circular tube structure, and the back of the arm of the clip 21 is in a circular arc shape, and in order to ensure that the clip 21 can be opened by a preset angle, the contact area between the sleeve 22 and the clip 21 is small, which results in unstable movement during repeated opening and closing, easy occurrence of rotational offset, and may affect the clamping effect of the clip 21 on tissues due to the defect of rotational offset. Therefore, in order to keep the clip 21 stable during the opening and closing process, the sleeve 22 is provided with a guide groove 222, and the arm of the clip 21 is provided with an elastic protrusion 211 inserted into the guide groove 222, and the elastic protrusion 211 can slide in the guide groove 222. In practical application, the elastic protruding portion 211 slides in the guide groove 222, so that the clip 21 can not generate rotation deviation in the opening and closing process, and stability is improved. Meanwhile, when the clip 21 is repeatedly opened and closed, the elastic protrusion 211 is always positioned in the guide groove 222, which is beneficial to smooth opening and closing of the clip 21, thereby realizing repeated opening and closing.
In some embodiments of the present application, as shown in fig. 3 and 5, a limiting groove 223 is disposed on the distal end surface of the sleeve 22; the clamping arm of the clamp 21 is provided with a guide piece 212; the guide piece 212 may enter the limit groove 223 and contact the bottom of the limit groove 223. The clip 21 can be further maintained in smooth movement by the limit groove 223. In addition, the closing direction between the two arms of the clip 21 can be effectively limited by the cooperation between the limiting groove 223 and the guide piece 212, thereby indirectly increasing the clamping force of the clip 21.
In operation, after the clamp 21 clamps the tissue, the clamp 21 and sleeve 22 need to remain in the patient to continue to clamp the tissue to promote tissue healing. In order to enable the clip 21 and sleeve 22 to remain in the patient, the present application requires that the operating assembly 1 and the collet assembly 2 be separated after the clip 21 grips the tissue. Namely, the operating assembly 1 comprises an elastic release member 11 and a separation outer cylinder 13; the elastic release piece 11 is detachably connected with the middle parts of two clamping arms of the clamp 21 to control the clamp 21 to open and close for a plurality of times, the separation outer cylinder 13 is arranged at the proximal end of the sleeve 22, and the separation outer cylinder 13 is detachably connected with the sleeve 22. It will be seen that in practice the separation between the operating assembly 1 and the collet assembly 2 may be achieved by separation between the clip 21 and the resilient release 11 and separation between the sleeve 22 and the separating outer barrel 13.
The specific separation mode can be as follows: as shown in fig. 3, the middle parts of the two clamping arms of the clamp 21 are provided with a clamping part 214, and the distal end of the elastic release member 11 is provided with a connecting part 14 matched with the clamping part 214; the connecting arm of the elastic release member 11 is shaped into a curved structure, so that the connecting arm of the elastic release member 11 can be compressed by the inner wall of the sleeve 22 to generate elastic deformation; the connecting portion 14 may enter the engaging portion 214 to disengage the connecting portion 14 from the engaging portion 214 when the connecting arm of the elastic release member 11 is separated from the inner wall of the sleeve 22.
In practice, the clamp 21 may comprise two working phases, namely a repetition of the opening and closing phases and the separation phase; the elastic release piece 11 and the clamp 21 are continuously connected in the repeated opening and closing stage, and the clamp 21 is driven to move through the elastic release piece 11. After the clip 21 is determined to have clamped tissue in the separation stage, the clip 21 is pulled by the elastic release member 11 to move distally, so that the elastic protruding portion 211 slides out of the guide groove 222 and slides out a certain distance again, the distal end of the elastic release member 11 is separated from the constraint of the inner wall of the sleeve 22, the elastic release member 11 will recover the shape, and the connecting portion 14 is separated from the clamping portion 214, so that separation between the clip 21 and the elastic release member 11 is achieved, as shown in fig. 8.
In some embodiments of the present application, the clamping portion 214 is a groove; the connecting portion 14 is a connecting groove, and the clamping portion 214 is matched with the connecting portion 14 through buckling of a groove and the connecting groove. Through the mutual lock between spread groove and the recess, can obtain more stable connection under the prerequisite of guaranteeing mutual separation.
It should be noted that, in the technical solution provided in the present application, the mutual matching relationship between the clamping portion 214 and the connecting portion 14 may be implemented in various manners, for example, a manner of fastening two groove structures may be adopted, and may also be implemented by matching the notch with the clamping block. In another embodiment of the present application, as shown in fig. 12 and 13, the engaging portion 214 may be a protrusion protruding from the side of the clip, and the connecting portion 14 may be a hole formed at the distal end of the elastic release member 11. Under the extrusion of the inside of the sleeve, the protrusions of the clamping portion 214 can enter the holes of the connecting portion 14, and after the extrusion is released, the two connecting arms of the elastic release member 11 recover the outward-opening structure by virtue of elasticity, so that the connecting portion 14 and the clamping portion 214 are separated from each other.
In other embodiments of the present application, the engaging portion 214 may be configured as a hole structure, and the connecting portion 14 may be configured as a protrusion structure, and it is within the scope of the present application that those skilled in the art can realize a detachable connection according to the above embodiments.
Further, as shown in fig. 4, the two side edges of the middle of the two arms of the clip 21 are provided with the grooves; the elastic release member 11 comprises two connecting arms with the same shape, and the distal end of each connecting arm is provided with the connecting part 14. That is, in practical application, the elastic release member 11 and the clip 21 may have symmetrical structures, and this symmetrical structure form can enable the elastic release member 11 and the clip 21 to maintain a stable connection state during repeated opening and closing phases, so as to transmit a sliding torque; on the other hand, it is convenient to maintain the balance of the spring force so as to be separated from the groove after being bound away from the inner wall of the sleeve 22. In addition, as shown in fig. 11, in order to enable the elastic release member 11 to be pressed against the inner wall of the sleeve 22 while in the sleeve 22, the distal end of the elastic release member 11 may also be bent outward so as to contact the inner wall of the sleeve 22.
In order to achieve the separation between the sleeve 22 and the separation outer cylinder 13, in one embodiment of the present application, as shown in fig. 6 and 7, the operation assembly 1 further includes an elastic connection member 12, a connection hole 221 is provided on the sleeve 22, and a clamping groove 131 is provided on the inner wall of the separation outer cylinder 13; the elastic connection member 12 is disposed in the catching groove 131 through the connection hole 221 to detachably connect the separation outer cylinder 13 to the sleeve 22. Further, the elastic connecting piece 12 is a flexible elastic piece, the middle width of the elastic connecting piece 12 may be smaller than the width of the two ends, and a movable space may be provided for the two connecting arms of the elastic releasing piece 11.
In practical application, in the repeated opening and closing stage, as shown in fig. 1, the elastic connection member 12 is not compressed, and is in a straight state, and two ends of the elastic connection member 12 pass through the connection hole 221 and enter the clamping groove 131 of the inner wall of the separation outer cylinder 13, and at this time, the sleeve 22 and the separation outer cylinder 13 are connected with each other by the restriction of the elastic connection member 12. In addition, the elastic connecting piece 12 can rotate in the clamping groove 131 along the circumferential direction, so that the sleeve 22 and the separating outer cylinder 13 can rotate relatively, and the rotation angle of the clamp 21 can be adjusted conveniently.
When the clip 21 is completed to be closed into the separation stage, as shown in fig. 2, the elastic connection member 12 is deformed by the middle of the clip 21 by pressing the clip 21 so that the edge thereof is separated from the catching groove 131 as the clip 21 moves proximally. At this time, the separation between the separation outer cylinder 13 and the sleeve 22 is not limited by the elastic connection member 12 any more, and the separation between the separation outer cylinder 13 and the sleeve 22 can be achieved.
In another embodiment of the present application, as shown in FIG. 10, the sleeve 22 is provided with a twisted tip 224; the twisted tip 224 is a sheet-like structure obliquely disposed on the circumferential surface of the sleeve 22; as shown in fig. 9, the twisted tip 224 may enter into a catching groove 131 of the inner wall of the separation outer cylinder 13 to detachably connect the separation outer cylinder 13 to the sleeve 22. In practical application, the twisting sharp 224 is inclined at a larger angle relative to the circumferential surface of the sleeve 22 at the repeated opening and closing node, so that the outer edge of the twisting sharp enters the clamping groove 131, and the separating outer cylinder 13 and the sleeve 22 are connected together. In the separation stage, the back of the clamping arm of the clamp 21 touches the inner edge of the twisting tip 224 to elastically twist relative to the circumferential wall of the sleeve 22, and at this time, the outer edge of the twisting tip 224 is separated from the clamping groove 131, so that the sleeve 22 and the separation outer cylinder 13 are separated.
Further, as shown in fig. 9, the sleeve 22 is provided with a connecting hole 221 collinear with the guiding groove 222, and the elastic protruding part 211 on the clamping arm of the clamp 21 comprises a plurality of hanging tables 213; a hanging stand 213 near the proximal end of the clip 21 can enter the connection hole 221 from the guide groove 222. When the clip 21 is in the separated state, the sleeve 22 and the clip 21 are fixed together by the cooperation between the proximal hanging stand 213 and the connecting hole 221, so as to achieve the purpose of locking the closed state of the clip 21.
In practice, as shown in fig. 1, in order to perform the surgical operation in vitro, the tissue clamping device further comprises: a catheter 3, an operation wire 4 and a handle 5; specifically, the proximal end of the separation outer cylinder 13 is connected to the handle 5 through the catheter 3; the operation wire 4 is arranged in the catheter 3 and can move in the catheter 3; the distal end of the operating wire 4 is connected to the elastic release member 11, and the proximal end of the operating wire 4 is connected to a sliding member on the handle 5 to control the clip 21 to perform an opening and closing operation.
Taking the clamping stomach wound surface as an example, performing conventional ESD operation treatment by an endoscope, and preparing the clamping stomach wound surface for ending after the treatment is finished; the assembled tissue closing device is taken out, and the sliding part on the handle 5 is slightly pulled to drive the operation wire 4 to move, so that the elastic release piece 11 is driven to drive the clip 21 to open and close within the range of the guide groove 222 of the sleeve 22. After the clamp 21 is in a closed state within the range of the guide groove 222, penetrating the device into an endoscope forceps channel and delivering to a wound surface, pushing the sliding part to enable two clamp arms of the clamp 21 to open, and preparing to close the wound surface; after clamping the tissue, the sliding member is pulled to close the clamp 21, clamping the tissue, and rotating the handle 5 as necessary to find the most appropriate clamping position. After the clip 21 is closed, the collet assembly 2 is finally released by continuing to apply a greater pulling force to separate the sleeve 22 and the release outer barrel 13 from each other and the clip 21 and the resilient release member 11 from each other. Finally, the operation assembly 1 is taken out from the forceps channel; according to different requirements of the wound surface size, the device can be continuously conveyed according to the steps until the wound surface is completely closed.
According to the technical scheme, the tissue clamping device provided by the application is simple in structure and manufacturing process: only two to three parts, including the clip 21, the sleeve 22 or the clip 21, the sleeve 22, the elastic connection 12, which are finally left in the patient's body, locked to each other, greatly reduce the number of parts left in the body. The clip 21, the sleeve 22 and the elastic connecting piece 12 can be manufactured in batch and controlled in quality by adopting stamping forming and laser engraving processing and light-stringing processing; the instrument has stable overall performance, has main clinical functions such as repeated opening and closing, continuous rotation and the like, and solves the clinical problems such as bleeding, wound surface closing and the like to the greatest extent.
The above-provided detailed description is merely a few examples under the general inventive concept and does not limit the scope of the present application. Any other embodiments which are extended according to the solution of the application without inventive effort fall within the scope of protection of the application for a person skilled in the art.
Claims (9)
1. A tissue clamping device, comprising:
an operating assembly (1);
a collet assembly (2) detachably connected to the operating assembly (1);
Wherein the collet assembly (2) comprises a clip (21) and a sleeve (22); the clip (21) is provided with two sheet-shaped clip arms with an integral structure, and the clip (21) is arranged in the sleeve (22) at a position close to the far end; the operating assembly (1) comprises an elastic release piece (11) and a separation outer barrel (13); the elastic release piece (11) is detachably connected with the middle parts of two clamping arms of the clamp (21) so as to enable the clamp (21) to be opened and closed for a plurality of times, the separation outer cylinder (13) is arranged at the proximal end of the sleeve (22), and the separation outer cylinder (13) is detachably connected with the sleeve (22);
Clamping parts (214) are arranged at the side edges of the middle parts of the two clamping arms of the clamp (21), and the clamping parts (214) are grooves or bulges; the far end of the elastic release piece (11) is provided with a connecting part (14) matched with the clamping part (214), and the connecting part (14) is of a connecting groove or hole structure; the connecting arm of the elastic release piece (11) is shaped into an outward-stretching bending structure, so that the connecting arm of the elastic release piece (11) can be compressed by the inner wall of the sleeve (22) to generate elastic deformation; the connecting part (14) is buckled with the connecting groove through a groove or connected with the hole structure through a bulge and enters the clamping part (214), so that the connecting part (14) is separated from the clamping part (214) when the connecting arm of the elastic release piece (11) leaves the inner wall of the sleeve (22).
2. The tissue clamping device according to claim 1, wherein the grooves are provided on both side edges of the middle part of both clamping arms of the clamp (21); the elastic release piece (11) comprises two connecting arms with the same shape, and the distal end of each connecting arm is provided with the connecting part (14).
3. The tissue clamping device according to claim 1, characterized in that a limiting groove (223) is provided on the distal end face of the sleeve (22); a guide piece (212) is arranged on the clamping arm of the clamp (21); the guide piece (212) can enter the limit groove (223) and contact the bottom of the limit groove (223).
4. The tissue clamping device according to claim 1, wherein the operating assembly (1) further comprises an elastic connecting piece (12), a connecting hole (221) is formed in the sleeve (22), and a clamping groove (131) is formed in the inner wall of the separation outer cylinder (13); the elastic connecting piece (12) passes through the connecting hole (221) and is arranged in the clamping groove (131) so as to realize that the separation outer cylinder (13) is detachably connected with the sleeve (22).
5. The tissue clamping device according to claim 4, wherein the elastic connection element (12) is a bendable and deformable elastic sheet.
6. The tissue clamping device according to claim 1, wherein the sleeve (22) is provided with a guiding groove (222), and the clamping arm of the clamp (21) is provided with an elastic protruding part (211) which is inserted into the guiding groove (222), and the elastic protruding part (211) can slide in the guiding groove (222).
7. The tissue clamping device according to claim 6, wherein the sleeve (22) is provided with a twisting tip (224); the twisted tip (224) is a sheet-like structure obliquely arranged on the circumferential surface of the sleeve (22); the twisting tip (224) can enter a clamping groove (131) on the inner wall of the separation outer cylinder (13) so as to realize the separable connection of the separation outer cylinder (13) with the sleeve (22).
8. The tissue clamping device according to claim 7, wherein the sleeve (22) is provided with a connecting hole (221) which is collinear with the guide groove (222), and the elastic bulge (211) on the clamping arm of the clamp (21) comprises a plurality of hanging tables (213); a hanging stand (213) near the proximal end of the clip (21) can enter the connecting hole (221) from the guide groove (222).
9. The tissue gripping device of claim 1, wherein the tissue gripping device further comprises: a catheter (3), an operation wire (4) and a handle (5);
the proximal end of the separation outer barrel (13) is connected with the handle (5) through the catheter (3); the operation wire (4) is arranged in the guide pipe (3) and can move in the guide pipe (3); the distal end of the operation wire (4) is connected with the elastic release piece (11), and the proximal end of the operation wire (4) is connected with a sliding part on the handle (5) so as to control the clip (21) to complete opening and closing actions.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910719593.XA CN110292411B (en) | 2019-08-06 | 2019-08-06 | Tissue clamping device |
| DE212020000695.4U DE212020000695U1 (en) | 2019-08-06 | 2020-06-12 | Tissue clamping and closure device |
| PCT/CN2020/095867 WO2021022905A1 (en) | 2019-08-06 | 2020-06-12 | Tissue clamping and closing device |
| ES202290001U ES1289331Y (en) | 2019-08-06 | 2020-06-12 | Tissue clamping and closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910719593.XA CN110292411B (en) | 2019-08-06 | 2019-08-06 | Tissue clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110292411A CN110292411A (en) | 2019-10-01 |
| CN110292411B true CN110292411B (en) | 2024-04-16 |
Family
ID=68032700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910719593.XA Active CN110292411B (en) | 2019-08-06 | 2019-08-06 | Tissue clamping device |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN110292411B (en) |
| DE (1) | DE212020000695U1 (en) |
| ES (1) | ES1289331Y (en) |
| WO (1) | WO2021022905A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110292411B (en) * | 2019-08-06 | 2024-04-16 | 南微医学科技股份有限公司 | Tissue clamping device |
| CN118576267A (en) * | 2020-06-12 | 2024-09-03 | 南微医学科技股份有限公司 | Clamp with large holding power and small release force |
| CN111568494B (en) * | 2020-06-16 | 2024-10-11 | 苏州市倍咏医疗科技有限公司 | Clamping device capable of being continuously released and operation method |
| CN113288232A (en) * | 2021-05-27 | 2021-08-24 | 北京中科盛康科技有限公司 | Locking method and device capable of rotatably opening and closing soft tissue clamp |
| CN113812999B (en) * | 2021-08-30 | 2023-03-14 | 勾善淼 | Clamp system based on elastic metal |
| CN114305571A (en) * | 2021-12-31 | 2022-04-12 | 上海智宸实业(集团)有限公司 | Hemostatic clamp |
| CN115281765B (en) * | 2022-08-11 | 2024-07-23 | 镜医(上海)医疗科技有限公司 | Tissue clamping device and tissue clamping system |
| CN115530908A (en) * | 2022-10-11 | 2022-12-30 | 常州昕美达微创医疗器械科技有限公司 | Medical hemostatic clamp |
| CN117357207B (en) * | 2023-12-05 | 2024-04-16 | 启晨(上海)医疗器械有限公司 | Conveying system for deep vein thrombosis removing device under trunk |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116606A (en) * | 2006-08-03 | 2008-02-06 | 奥林巴斯医疗株式会社 | Treatment instrument for endoscope |
| JP2009011852A (en) * | 2008-09-16 | 2009-01-22 | Olympus Corp | Ligating instrument for biological tissue |
| JP2010234002A (en) * | 2009-03-31 | 2010-10-21 | Terumo Corp | Biological tissue closing device |
| EP2335610A2 (en) * | 2008-03-06 | 2011-06-22 | Fujifilm Corporation | Magazine type clipping device |
| DE102011052114A1 (en) * | 2011-07-25 | 2013-01-31 | Aesculap Ag | Surgical instrument for removing surgical clips applied to tissue structure of patient, particularly for hemostasis of blood vessels and clamping and closing of hollow organs, has two brackets connected with each other over connecting area |
| CN203493692U (en) * | 2013-09-30 | 2014-03-26 | 南京微创医学科技有限公司 | Medical clamp conveyor |
| CN204951051U (en) * | 2015-09-18 | 2016-01-13 | 董军 | Can stablize hemostatic forceps of centre gripping |
| CN107280723A (en) * | 2017-06-12 | 2017-10-24 | 南京微创医学科技股份有限公司 | A kind of medical tissue presss from both sides release device |
| JP2018038449A (en) * | 2016-09-05 | 2018-03-15 | テルモ株式会社 | Medical clamping device |
| WO2018201406A1 (en) * | 2017-05-04 | 2018-11-08 | 杭州安杰思医学科技有限公司 | End portion execution instrument, end portion execution device, delivery device, and assembly box |
| CN208876623U (en) * | 2018-05-07 | 2019-05-21 | 张强 | The double endoclips of rotatable repeatable opening and closing disjunctor |
| CN109805986A (en) * | 2019-03-21 | 2019-05-28 | 南京微创医学科技股份有限公司 | A kind of medical multijaw pincers |
| CN210811306U (en) * | 2019-08-06 | 2020-06-23 | 南微医学科技股份有限公司 | Tissue clamping device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2246036T3 (en) * | 2002-05-21 | 2006-02-01 | Spinelab Ag | ELASTIC SYSTEM FOR THE STABILIZATION OF THE VERTEBRAL COLUMN. |
| US7494461B2 (en) * | 2003-09-30 | 2009-02-24 | Boston Scientific Scimed, Inc. | Through the scope tension member release clip |
| JP4598181B2 (en) * | 2005-01-05 | 2010-12-15 | Ｈｏｙａ株式会社 | Endoscopic clip device |
| EP2688496B8 (en) * | 2011-03-24 | 2019-09-11 | Ethicon LLC | Energy-based scissors device |
| EP2591736A1 (en) * | 2011-11-14 | 2013-05-15 | Anrei Medical (HZ) Co., Ltd. | Clip apparatus for ligature of living tissue |
| JP6682627B2 (en) * | 2015-12-03 | 2020-04-15 | ボストン サイエンティフィック サイムド，インコーポレイテッドＢｏｓｔｏｎ Ｓｃｉｅｎｔｉｆｉｃ Ｓｃｉｍｅｄ，Ｉｎｃ． | Electrocautery hemostatic clip |
| CN206403824U (en) * | 2016-11-15 | 2017-08-15 | 浙江创想医学科技有限公司 | A kind of rotatable repetition opening and closing hemostatic clamp |
| CN110292411B (en) * | 2019-08-06 | 2024-04-16 | 南微医学科技股份有限公司 | Tissue clamping device |
-
2019
- 2019-08-06 CN CN201910719593.XA patent/CN110292411B/en active Active
-
2020
- 2020-06-12 DE DE212020000695.4U patent/DE212020000695U1/en active Active
- 2020-06-12 ES ES202290001U patent/ES1289331Y/en active Active
- 2020-06-12 WO PCT/CN2020/095867 patent/WO2021022905A1/en active Application Filing
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116606A (en) * | 2006-08-03 | 2008-02-06 | 奥林巴斯医疗株式会社 | Treatment instrument for endoscope |
| EP2335610A2 (en) * | 2008-03-06 | 2011-06-22 | Fujifilm Corporation | Magazine type clipping device |
| JP2009011852A (en) * | 2008-09-16 | 2009-01-22 | Olympus Corp | Ligating instrument for biological tissue |
| JP2010234002A (en) * | 2009-03-31 | 2010-10-21 | Terumo Corp | Biological tissue closing device |
| DE102011052114A1 (en) * | 2011-07-25 | 2013-01-31 | Aesculap Ag | Surgical instrument for removing surgical clips applied to tissue structure of patient, particularly for hemostasis of blood vessels and clamping and closing of hollow organs, has two brackets connected with each other over connecting area |
| CN203493692U (en) * | 2013-09-30 | 2014-03-26 | 南京微创医学科技有限公司 | Medical clamp conveyor |
| CN204951051U (en) * | 2015-09-18 | 2016-01-13 | 董军 | Can stablize hemostatic forceps of centre gripping |
| JP2018038449A (en) * | 2016-09-05 | 2018-03-15 | テルモ株式会社 | Medical clamping device |
| WO2018201406A1 (en) * | 2017-05-04 | 2018-11-08 | 杭州安杰思医学科技有限公司 | End portion execution instrument, end portion execution device, delivery device, and assembly box |
| CN107280723A (en) * | 2017-06-12 | 2017-10-24 | 南京微创医学科技股份有限公司 | A kind of medical tissue presss from both sides release device |
| CN208876623U (en) * | 2018-05-07 | 2019-05-21 | 张强 | The double endoclips of rotatable repeatable opening and closing disjunctor |
| CN109805986A (en) * | 2019-03-21 | 2019-05-28 | 南京微创医学科技股份有限公司 | A kind of medical multijaw pincers |
| CN210811306U (en) * | 2019-08-06 | 2020-06-23 | 南微医学科技股份有限公司 | Tissue clamping device |
Also Published As
| Publication number | Publication date |
|---|---|
| ES1289331U (en) | 2022-04-13 |
| ES1289331Y (en) | 2022-07-11 |
| WO2021022905A1 (en) | 2021-02-11 |
| DE212020000695U1 (en) | 2022-03-17 |
| CN110292411A (en) | 2019-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110292411B (en) | Tissue clamping device | |
| US12121254B2 (en) | Slide slot type multi-arm clamp | |
| US10595856B2 (en) | Stitching device with long needle delivery | |
| US10709442B2 (en) | Stitching device with long needle | |
| CN109805977B (en) | Medical hemostatic clamp | |
| WO2013067974A1 (en) | Living tissue ligating device | |
| WO2015176361A1 (en) | Hemostatic clip | |
| CN106491176A (en) | One kind is rotatable to be repeated to be opened and closed hemostatic clamp | |
| WO2017066986A1 (en) | Multi-clip ligation device | |
| CN211066840U (en) | Chuck structure of tissue clamp for endoscope | |
| CN210811306U (en) | Tissue clamping device | |
| CN209884245U (en) | Medical hemostatic clamp | |
| KR20130131322A (en) | Method and apparatus for guiding a suture thread | |
| US10973510B2 (en) | Needle loading unit for surgical suturing apparatus | |
| CN110251186A (en) | A kind of chuck structure of endoscope-use tissue folder | |
| CN211674414U (en) | Hemostatic clamp and auxiliary system | |
| US20160206391A1 (en) | A system to manipulate organs and instruments for minimally invasive surgery | |
| CN209826824U (en) | Laparoscope tissue clamp | |
| CN210277289U (en) | Chute type multi-arm clamp | |
| CN215018331U (en) | Clamping head component for hemostatic clamp and hemostatic clamp | |
| CN213665527U (en) | Anti-drop clip | |
| CN210631250U (en) | Endoscopic surgical instrument | |
| EP4046580A1 (en) | Hemostatic clip and auxiliary system | |
| CN114680992A (en) | Clamping head component for hemostatic clamp and hemostatic clamp | |
| WO2024087583A1 (en) | Endoscopic hemostatic clip device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 210032 No. 10, No. 3 Gaoke Road, Pukou District, Nanjing City, Jiangsu Province Applicant after: Nanwei Medical Technology Co.,Ltd. Address before: 210032 No. 10, No. 3 Gaoke Road, Pukou District, Nanjing City, Jiangsu Province Applicant before: Micro-Tech (Nanjing) Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |