CN111887784A - Damage prevention device, endoscope and damage prevention method - Google Patents
Damage prevention device, endoscope and damage prevention method Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
- A61B1/015—Control of fluid supply or evacuation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
- A61B1/126—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements provided with means for cleaning in-use
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Abstract
The invention relates to the technical field of medical instrument auxiliary articles, in particular to a damage prevention device for assisting an endoscope to enter a human body through a natural cavity, an endoscope using the damage prevention device and a damage prevention method for assisting the endoscope to enter the human body through the natural cavity, wherein the damage prevention device is arranged at the tip part of an endoscope tube or a guide sheath, the damage prevention device comprises a main body, the outer surface of the main body is smoothly arranged, and when the tip part of the endoscope tube or the guide sheath is inserted into the cavity of the human body, the smooth outer surface of the main body is contacted with the skin of the cavity of the human body, so that the inflammation caused by damaging the cavity of the human body and even the treatment effect are avoided; and the problem that the endoscope damages the body cavity when entering the human body can be solved on the premise of not changing the structure of the endoscope, and the endoscope is easy to popularize commercially.
Description
Technical Field
The invention relates to the technical field of medical instrument auxiliary articles, in particular to a damage prevention device for assisting an endoscope to enter a human body through a natural cavity, an endoscope using the damage prevention device and a damage prevention method for assisting the endoscope to enter the human body through the natural cavity.
Background
When an endoscope or an resectoscope enters a human body, the tip part of the endoscope tube or a guide sheath thereof easily scratches a human body cavity, although most of the endoscope tubes and the end part corners of the guide sheath thereof are designed to be rounded, the radius size is too small due to too thin wall thicknesses of the tip part of the endoscope tube and the guide sheath thereof, the anti-scratching effect is not good, and the human body cavity is easily damaged to cause inflammation and even influence the treatment effect.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the damage prevention device for assisting the endoscope to enter the human body through the natural cavity, which can solve the technical problem that the cavity of the human body is easy to scratch in the prior art.
The invention also provides an endoscope using the damage prevention device.
The invention also provides a damage prevention method for assisting the endoscope to enter the human body through the natural cavity.
The technical scheme adopted by the invention for solving the technical problems is as follows: a damage prevention device is applied to an endoscope entering a human body through a natural cavity, and comprises a main body, wherein the main body is arranged at the tip part of an endoscope tube or a guide sheath, and the outer surface of the main body is smoothly arranged.
Further, the main body is provided with a front end face and an outer side face, and the front end face and the outer side face are in smooth transition.
Furthermore, a transition side surface is arranged between the front end surface and the outer side surface, and the transition side surface and the front end surface and the outer side surface are in smooth transition.
Further, the transition side surface is an arc surface.
Further, the outer wall of the front end face is spherical or parabolic or planar or conical.
Further, the main body is sleeve-shaped and sleeved on the front end part of the endoscope tube or the guide sheath.
Further, the main body is made of elastic material, and the inner diameter of the main body is smaller than the outer diameter of the front end of the endoscope tube or the outer diameter of the guide sheath.
Further, the main body is made of a soluble material.
Further, the dissolvable material is gelatin or starch.
Further, the front end face is made of a transparent material.
Further, a liquid through hole is formed in the main body.
Further, the liquid via hole is formed in the front end face.
Further, the liquid via hole is arranged on a section, close to the front end face, of the outer side face.
Furthermore, the main body is provided with a fixing structure, and the front end part of the endoscope tube or the guide sheath is provided with a groove matched with the fixing structure.
Further, the fixed knot constructs including setting up the arch of main part inner wall, the arch can the joint or the lock joint is in the recess.
Furthermore, a chamfer is arranged on the inner wall of one end, which is relatively far away from the front end face, of the outer side face.
An endoscope is provided with the damage prevention device in the embodiment and further comprises an endoscope tube, wherein the damage prevention device is arranged on the front end part of the endoscope tube, or a guide sheath is further sleeved on the endoscope tube, and the damage prevention device is arranged on the guide sheath.
A damage prevention method for assisting an endoscope to enter a human body through a natural cavity comprises the following steps:
sleeving the damage prevention device on the tip part of the endoscope tube or the guide sheath;
inserting an endoscope into a human body cavity;
the damage-proof device is softened and separated from the front end part of the endoscope tube or the guide sheath or the damage-proof device is dissolved in the human body cavity.
A damage prevention method for assisting an endoscope to enter a human body through a natural cavity comprises the following steps:
the endoscope tube is arranged in the guide sheath in a penetrating way;
sleeving the damage prevention device at one end of the guide sheath;
inserting an endoscope into a human body cavity;
the endoscope tube moves relative to the guide sheath and is connected with the anti-damage device in a propping mode, and the anti-damage device is separated from the guide sheath.
Further, the method also comprises the following steps: the damage prevention device is dissolved in the human body cavity.
Further, the method also comprises the following steps: and taking the damage prevention device out of the body cavity by using tweezers or forceps.
The invention has the following beneficial effects: the damage prevention device is arranged at the tip part of the endoscope tube or the guide sheath, and comprises a main body, wherein the outer surface of the main body is smoothly arranged, and when the tip part of the endoscope tube or the guide sheath is inserted into a human body cavity, the smooth outer surface of the main body is contacted with the skin of the human body cavity, so that the injury to the human body cavity, which causes inflammation and even influences the treatment effect, is avoided; and the problem that the endoscope damages the body cavity when entering the human body can be solved on the premise of not changing the structure of the endoscope, and the endoscope is easy to popularize commercially.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic cross-sectional view of an embodiment of the loss prevention device of the present invention assembled with an introducer sheath;
FIG. 2 is an exploded view of the assembly of the loss prevention device and introducer sheath of an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of an assembled damage prevention device and a lens tube according to an embodiment of the present invention;
FIG. 4 is an exploded view of the assembly of the damage prevention device with the mirror tube of the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a damage prevention device according to a first embodiment of the present invention;
fig. 6 is a schematic structural view of a damage prevention device according to a second embodiment of the present invention;
fig. 7 is a schematic structural view of a damage prevention device according to a third embodiment of the present invention;
fig. 8 is a schematic structural view of a loss prevention device according to a fourth embodiment of the present invention;
fig. 9 is a schematic structural view of a loss prevention device according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 9, an anti-damage device for an endoscope entering a human body through a natural energy lumen comprises a main body, wherein the outer surface of the main body is smoothly disposed, specifically, the main body is disposed on the distal end of the endoscope tube 200 or the guiding sheath 300, the main body can be mounted on the distal end of the endoscope tube 200 or the guiding sheath 300 in a manner of plugging, sleeving, screwing, clamping, or buckling, when in use, the anti-damage device can be mounted on the distal end of the endoscope tube 200 or the insertion end of the guiding sheath 300, in some embodiments, the main body has a front end surface 101 and an outer side surface 103, the front end surface 101 and the outer side surface 103 smoothly transition between the front end surface 101 and the outer side surface 103, the front end surface 101 of the main body covers the end of the endoscope tube 200, the outer side surface 103 of the main body covers the outer wall surface of the endoscope tube 200 or the guiding sheath 300, and then the endoscope tube 200 of the endoscope, at this time, the front end surface 101, the outer side surface 103 of the damage prevention device or the smooth transition surface between the front end surface 101 and the outer side surface 103 firstly contacts the human body cavity, that is, the front end part of the endoscope 200 or the end part of the guide sheath 300 does not directly contact the skin of the human body cavity, so that the damage to the human body cavity can be avoided when the damage prevention device is inserted, and the damage prevention device is arranged on the front end part of the endoscope 200 or the guide sheath 300 without changing the structure of the endoscope 200 and/or the guide sheath 300, so that the improvement cost is low, and the commercial popularization is easy.
The distal end surface 101 may be in contact with the distal end portion of the scope tube 200 or the end surface of the insertion end of the introducer sheath 300, or a certain gap or clearance may be provided between the distal end surface 101 and the distal end portion of the scope tube 200 or the end surface of the insertion end of the introducer sheath 300, and a perfusion fluid may be injected into the gap or clearance.
In some embodiments, referring to fig. 1 to 4, a transition side surface 102 is further disposed between the front end surface 101 and the outer side surface 103, and the transition side surface 102 and the front end surface 101 and the transition side surface 102 and the outer side surface 103 are all in smooth transition, so as to ensure that when the endoscope is inserted into a human body lumen, the end surface of the endoscope and the end surface of the skin of the human body lumen are in smooth transition, thereby avoiding damaging the human body lumen; when it is needed to be mentioned, the transition side surface 102 may be a plane surface or an arc surface.
In some embodiments, the outer wall of the front end surface 101 is spherical, parabolic, or planar, as shown in fig. 5 to 7, in this embodiment, the front end surface 101 and the outer side surface 103 may be in direct smooth transition, or may be tapered, as shown in fig. 8, where the front end surface 101 is a conical tip, the transition side surface 102 is a conical surface of a conical body, and the outer side surface 103 is a cylindrical extension of a body that is tapered, and the extension is used for sleeving the lens tube 200 or the guiding sheath 300; in the embodiment that the outer wall of the front end face 101 is spherical or parabolic, the front end face 101 of the damage prevention device firstly contacts the human body cavity crossing, and the spherical or parabolic design can ensure that the human body cavity crossing is opened on the premise of not damaging the human body, so that the endoscope smoothly enters the human body cavity crossing; in the embodiment that the outer wall of the front end face 101 is planar, the design is convenient for production and processing, the cost is reduced, and the wall thickness of the front end face 101 is relatively thinner, so that the front end face is convenient for dissolution or puncture, and the efficiency is improved; in the embodiment where the outer wall of the front end face 101 is tapered, the design can facilitate insertion of the endoscope into the body lumen, and in this embodiment, the protection device with the tapered design can be particularly used in a cystoscope.
In some embodiments, referring to fig. 1 to 4, the main body is in a sleeve shape and is sleeved on the distal end of the endoscope tube 200 or the guiding sheath 300, the damage prevention device of this embodiment covers the distal end of the endoscope tube 200 or the outer surface of the guiding sheath 300 in a sleeved manner, so as to effectively prevent the endoscope from scratching the body lumen, and the sleeve-shaped design has another advantage that the damage prevention device receives a reaction force toward the endoscope tube 200 or the guiding sheath 300 when the endoscope tube 200 or the guiding sheath 300 is inserted into the body lumen, so as to prevent the damage prevention device from falling out of the endoscope tube 200 or the guiding sheath 300 to scratch the body during the insertion process, and the sleeve-shaped damage prevention device can achieve the effect of preventing the body lumen from being scratched without changing the original structure of the endoscope tube 200 or the guiding sheath 300; it should be noted that the length of the damage prevention device is greater than the width of the damage prevention device to ensure that the damage prevention device does not fall out of the endoscope tube 200 or the introducer sheath 300 during the insertion process.
In some embodiments, the body is made of an elastic material, and the inner diameter of the body is smaller than the outer diameter of the distal end portion of the tube 200 or the introducer sheath 300, in this embodiment, the damage prevention device is fixed to the distal end portion of the tube 200 or the introducer sheath 300 by its own elastic deformation restoring force; in some embodiments, the anti-damage device is sleeved and fixed on the guiding sheath 300, after the tip of the endoscope tube 200 or the guiding sheath 300 reaches the target position of the body cavity, the endoscope tube 200 can move in the guiding sheath 300 and relative to the guiding sheath 300 to push the anti-damage device out of the end of the guiding sheath 300, so that the endoscope tube 200 can extend out of the guiding sheath 300 to facilitate the observation of the body cavity or the implementation of the operation in the body cavity; in other embodiments, the damage prevention device can be directly sleeved on the tip of the endoscope tube 200, and after the tip of the endoscope tube 200 reaches the target position of the body lumen, the endoscope tube can be left standing for a certain time, so that the damage prevention device is softened and falls off from the tip of the endoscope tube 200, or the damage prevention device is dissolved by itself, and the endoscope can be operated to perform the operation.
In some embodiments, the main body is made of a dissolvable material, specifically, the dissolvable material may be gelatin or starch, which can be dissolved in the body lumen when contacting water, and does not cause harm to the human body, and the damage prevention device does not need to be taken out by tweezers or forceps after the operation is performed, which is simple and convenient, and also avoids the problem that the tweezers or forceps enter the body lumen to scratch the human body.
In some embodiments, the front face 101 is made of a transparent material, specifically, the transparent material may be a plastic such as PC, PMMA, PS, PVC, or gelatin, and the purpose of the transparent material of the front face 101 is to facilitate observation when an endoscope is needed for observation during propulsion, and of course, the front face 101 may be made of a non-transparent material when an endoscope such as a cystoscope is not needed for observation during propulsion.
The main body may be integrally formed, or may be formed by bonding the front end surface 101 and the outer side surface 103, and when the main body is integrally formed, the front end surface 101 and the outer side surface 103 are both transparent; in other embodiments where the front end surface 101 and the outer side surface 103 are bonded, the front end surface 101 is made of a transparent material, the outer side surface 103 can be made of a relatively low-cost material, and the design emphasis of the outer side surface 103 can be dedicated to the relative fixation between the damage prevention device and the endoscope tube 200 or the introducer sheath 300.
In some embodiments, the body is provided with a liquid through hole 104, in this embodiment, a certain amount of perfusion fluid may be injected into the sleeve-shaped body, specifically, the damage prevention device may be sleeved on the distal end portion of the endoscope tube 200 or the guiding sheath 300, and then the perfusion fluid may be injected into the body and the region between the distal end portion of the endoscope tube 200 or the end surface of the guiding sheath 300 through the liquid through hole 104, the perfusion fluid has an effect of ensuring that the endoscope can keep a clear view during the propelling process, and meanwhile, the perfusion fluid may flow out from the liquid through hole 104 during the propelling process to play a certain lubricating role.
In some embodiments, referring to fig. 5 and 6, the liquid via hole 104 is disposed on the front end surface 101, in this embodiment, there is at least one liquid via hole 104, and the liquid via hole 104 may be disposed in a central position or an edge position of the front end surface 101; the liquid via hole 104 is arranged at the center of the front end face 101, so that the perfusate is conveniently injected, and the perfusate can flow out of the liquid via hole 104 in the advancing process, so that the clear view of the front end of the endoscope is kept; in other embodiments, the liquid through holes 104 are arranged at the edge of the front end face 101, so that the perfusion liquid flows out from the liquid through holes 104 at the edge of the front end face 101 in the propelling process, thereby achieving the effect of lubricating the outer surface of the anti-damage device and the human body cavity, and further avoiding damaging the human body cavity; in particular, the arrangement of the liquid passage hole 104 in the front end face 101 is generally suitable for soft lenses to ensure that the soft lens is bent during the advancing process to obtain a clear view.
In some embodiments, referring to fig. 7, the liquid via hole 104 is disposed on the outer side surface 103 at a section close to the front end surface 101, that is, the liquid via hole 104 is disposed on the side surface of the main body, the design of the present embodiment is more suitable for a hard mirror, and the hard mirror cannot be bent and rotated during insertion into the body cavity and pushing, so that the body cavity is more easily damaged, and the liquid via hole 104 is disposed on the side surface of the main body, so that the perfusion liquid flowing out from the liquid via hole 104 is more easily contacted with the skin of the body cavity, so that the probability of damaging the skin of the body cavity is reduced.
In some embodiments, referring to fig. 9, the main body is provided with a fixing structure 106, the distal end of the endoscope tube 200 or the guiding sheath 300 is provided with a groove for matching with the fixing structure 106, specifically, the fixing structure 106 may be a protrusion disposed on the inner wall of the main body, the protrusion can be clamped into the groove, the protrusion and the main body can be integrally formed, in other embodiments, the protrusion has at least one, or several, or a ring shape disposed on the inner wall of the main body along the circumferential direction, the inner diameter of the ring is smaller than the outer diameter of the endoscope tube 200 or the outer diameter of the guiding sheath 300, and the main body has a certain elastic deformation, when in use, the damage preventing device is sleeved on the distal end of the endoscope tube 200 or the insertion end of the guiding sheath 300, and the damage preventing device has a certain elastic deformation during the sleeving process, so that the fixing structure 106 can be clamped into the groove, the fixing structure 106 of the present embodiment is disposed in the inner wall of the main body, so as to prevent the fixing structure 106 from damaging the body lumen; in other embodiments, the fixing structure 106 may be in the form of a button block disposed on the inner wall of the main body.
In some embodiments, the inner wall of the outer side surface 103 at the end opposite to the front end surface 101 is provided with a chamfer 105, the chamfer 105 may be a rounded or a right-angled chamfer, and the chamfer 105 is used for facilitating the insertion of the damage prevention device into the tip of the endoscope tube 200 or the introducer sheath 300.
In the embodiment in which the damage preventing device is inserted into the distal end portion of the tube 200 or the introducer sheath 300, the distal end portion of the tube 200 is provided with a groove portion into which the damage preventing device can be inserted, and the outer diameter of the outer side surface 103 is larger than the outer diameter of the tube 200 or the outer diameter of the introducer sheath 300, and in this embodiment, the main body is in the form of a bolt, and both the distal end surface 101 and the outer side surface 103 are located in a nut portion of the bolt-shaped main body, and the nut portion is inserted into the groove portion of the tube 200.
In the embodiment where the damage prevention device is screwed with the tip of the endoscope 200 or the introducer sheath 300, a section of the damage prevention device relatively far away from the front end surface 101 is provided with an internal thread, while the tip of the endoscope 200 or the outer surface of the introducer sheath 300 can be correspondingly provided with an external thread, and the outer side surface 103 of the main body completely covers the external thread, in this embodiment, the front end surface 101 can be made of a soluble material, and the outer side surface 103 can be made of an insoluble material.
An endoscope comprises the above-mentioned damage preventing device, which is sleeved on the front end of the endoscope tube 200 or the insertion end of the guide sheath 300 before the endoscope is inserted into the human body cavity, the damage preventing device can be made of transparent material or non-transparent material, and the damage preventing device can also be made of material which can be dissolved into the human body cavity, such as gelatin, starch, etc.
A damage prevention method for assisting an endoscope to enter a human body through a natural orifice comprises the following steps:
the damage prevention device is sleeved on the tip of the endoscope tube 200 or the guiding sheath 300, and specifically, the damage prevention device can be ensured not to be separated from the tip of the endoscope tube 200 or the guiding sheath 300 in the insertion process through the elastic deformation of the damage prevention device, or the damage prevention device can be provided with a fixing structure 106, the tip of the endoscope tube 200 or the guiding sheath 300 is provided with a groove matched with the fixing structure 106, and the fixing structure 106 is matched with the groove so as to ensure that the damage prevention device is not separated from the tip of the endoscope tube 200 or the guiding sheath 300 in the insertion process.
The endoscope can be inserted into the human body cavity channel, the endoscope can be a soft lens or a hard lens, the endoscope can be inserted in a blind way in the process of inserting the human body cavity channel, visual operation can also be realized in the process of inserting, and when the endoscope is inserted, the front end face 101 and the outer side face 103 of the damage prevention device are in smooth transition, so that the injury of the human body cavity channel caused by the endoscope tube 200 or the guide sheath 300 can be avoided.
The damage prevention device is softened after a period of time in the body lumen and can automatically fall off from the tip of the endoscope tube 200 or the guide sheath 300, or the damage prevention device is automatically dissolved after a period of time in the body lumen, so that medical personnel can operate the endoscope to perform an operation.
A damage prevention method for assisting an endoscope to enter a human body through a natural orifice comprises the following steps:
the scope tube 200 is inserted into the guide sheath 300, the guide sheath 300 is formed in a tubular shape, the scope tube 200 is inserted into the guide sheath 300, and the distal end of the scope tube 200 is passed out from one end of the guide sheath 300.
The anti-damage device is sleeved at one end of the guide sheath 300 and is in a sleeve shape, the anti-damage device is sleeved at one end of the guide sheath 300 penetrating out of the tip of the endoscope tube 200, the inner wall of the front end face 101 can be attached to the tip of the endoscope tube 200 at the moment, a certain gap can be formed between the inner wall of the anti-damage device and the tip of the endoscope tube 200, perfusate can be injected into the gap between the inner wall of the anti-damage device and the tip of the endoscope tube 200, the perfusate has the effect of ensuring clear visual field during visual endoscope operation, specifically, the anti-damage device is provided with the liquid via hole 104, the anti-damage device can be sleeved at one end of the guide sheath 300 firstly, and then the perfusate is injected into the anti-damage device through the liquid via hole.
The endoscope can be inserted into the human body cavity channel, the endoscope can be a soft lens or a hard lens, the endoscope can be inserted in a blind way in the process of inserting the human body cavity channel, visual operation can also be realized in the process of inserting, and when the endoscope is inserted, the front end face 101 and the outer side face 103 of the damage prevention device are in smooth transition, so that the injury of the human body cavity channel caused by the endoscope tube 200 or the guide sheath 300 can be avoided.
The endoscope tube 200 moves relative to the guide sheath 300 to separate the damage prevention device from the guide sheath 300, specifically, one end of the guide sheath 300 is inserted into the human body cavity, and the other end is external, so that the other end of the guide sheath 300 can be fixed by a human hand, and then the endoscope tube 200 moves forward relative to the guide sheath 300 continuously to eject the damage prevention device out of the insertion end of the guide sheath 300, and the damage prevention device can be accommodated in the human body cavity.
In some embodiments, the loss prevention device is capable of dissolving in a body lumen, the loss prevention device may be made of a material that is capable of dissolving in a body, such as gelatin, and the loss prevention device may dissolve itself after a certain period of time in the body lumen.
In other embodiments, the damage prevention device can be taken out of the body cavity by using tweezers or forceps, specifically, in this embodiment, the damage prevention device is made of an insoluble material, and after the operation is completed, the endoscope is taken out of the body cavity, and then the tweezers or forceps are inserted into the body cavity and the damage prevention device is taken out.
It should be noted that the endoscopes described in all the embodiments include all endoscopes entering the human body through the natural orifice, including an endoscope and a resectoscope, such as a ureteroscope, a pyeloscope, a cystoscope, and a hysteroscope, and the resectoscope includes a prostatectoscope, a hysteroscope, and the like.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (20)
1. A damage prevention device is applied to an endoscope entering a human body through a natural cavity, and is characterized by comprising a main body, wherein the main body is arranged at the tip part of an endoscope tube or a guide sheath, and the outer surface of the main body is smoothly arranged.
2. A damage prevention device as recited in claim 1, wherein the body has a front face and an outer face, the front face and the outer face being rounded.
3. A damage prevention device as recited in claim 2, wherein transition sides are provided between said front end surface and said outer side surface, said transition sides being smoothly transitioned with said front end surface and said outer side surface.
4. A damage prevention device as claimed in claim 2 wherein the outer wall of the front face is spherical or parabolic or planar or conical.
5. A damage prevention device as recited in claim 1, wherein the body is sleeve-shaped and fits over the distal end of the tube or the introducer sheath.
6. A damage prevention device as claimed in claim 5, characterized in that the body is made of an elastic material and that the inner diameter of the body is smaller than the outer diameter of the tip of the catheter or the outer diameter of the introducer sheath.
7. A damage prevention device as recited in claim 1, wherein the body is formed of a dissolvable material.
8. A damage prevention device as claimed in claim 7 wherein the dissolvable material is gelatin or starch.
9. A damage prevention device as recited in claim 2, wherein said front face is formed of a transparent material.
10. A damage protection device according to claim 2, wherein said body is provided with liquid passing holes.
11. A damage prevention device as recited in claim 10, wherein said liquid passage opening is provided in said front face.
12. A damage protection device according to claim 10, wherein said liquid passage opening is provided in a section of said outer side surface adjacent to said front end surface.
13. A damage prevention device as claimed in claim 1, characterized in that the body is provided with a fixing structure, and the distal end of the tube or the introducer sheath is provided with a groove for cooperation with the fixing structure.
14. A damage protection device according to claim 13, wherein said fixing means comprises a projection provided on the inner wall of said body, said projection being adapted to snap fit or snap fit into said recess.
15. A damage prevention device as claimed in claim 2, characterized in that the inner wall of the outer side surface at the end opposite to the front end surface is chamfered.
16. An endoscope, comprising the damage prevention device according to any one of claims 1 to 15, and further comprising an endoscope tube, wherein the damage prevention device is provided on a distal end portion of the endoscope tube, or wherein an introducer sheath is further provided on the endoscope tube, and wherein the damage prevention device is provided on the introducer sheath.
17. A damage prevention method is used for assisting an endoscope to enter a human body through a natural cavity, and is characterized by comprising the following steps:
sleeving the damage prevention device on the tip part of the endoscope tube or the guide sheath;
inserting an endoscope into a human body cavity;
the damage-proof device is softened and separated from the front end part of the endoscope tube or the guide sheath or the damage-proof device is dissolved in the human body cavity.
18. A damage prevention method is used for assisting an endoscope to enter a human body through a natural cavity, and is characterized by comprising the following steps:
the endoscope tube is arranged in the guide sheath in a penetrating way;
sleeving the damage prevention device at one end of the guide sheath;
inserting an endoscope into a human body cavity;
the endoscope tube moves relative to the guide sheath and is connected with the anti-damage device in a propping mode, and the anti-damage device is separated from the guide sheath.
19. A damage prevention method as claimed in claim 18, further comprising the steps of: the damage prevention device is dissolved in the human body cavity.
20. A damage prevention method as claimed in claim 18, further comprising the steps of: and taking the damage prevention device out of the body cavity by using tweezers or forceps.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010652974.3A CN111887784A (en) | 2020-07-08 | 2020-07-08 | Damage prevention device, endoscope and damage prevention method |
| PCT/CN2021/102008 WO2022007635A1 (en) | 2020-07-08 | 2021-06-24 | Injury prevention device, endoscope, and injury prevention method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010652974.3A CN111887784A (en) | 2020-07-08 | 2020-07-08 | Damage prevention device, endoscope and damage prevention method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111887784A true CN111887784A (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010652974.3A Pending CN111887784A (en) | 2020-07-08 | 2020-07-08 | Damage prevention device, endoscope and damage prevention method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111887784A (en) |
| WO (1) | WO2022007635A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022007635A1 (en) * | 2020-07-08 | 2022-01-13 | 珠海市司迈科技有限公司 | Injury prevention device, endoscope, and injury prevention method |
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| WO2022007635A1 (en) | 2022-01-13 |
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