CN104739464A

CN104739464A - Surgical suture with variable loop and barbs

Info

Publication number: CN104739464A
Application number: CN201310210420.8A
Authority: CN
Inventors: 高立彦
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-31
Filing date: 2013-05-31
Publication date: 2015-07-01

Abstract

The invention provides a surgical suture with a variable loop and barbs. A sharp suture needle or component with a piercing function is arranged at the front end of the suture. The middle part of the suture is an elongated surgical suture body which is provided with barbs. The variable loop with a knot is arranged at the tail end of the suture. In a clinical application, an operator uses the variable loop to lock and fix the suture body to organism tissues, so that a wound can be sutured without knotting. The invention further provides designs of multiple types of knots, including knots with mechanisms by which the knots are prevented from getting loose while being pulled. The structure and the tightness degree of the knot can control the sliding resistance of the middle suture body with the barbs in the knot, and control the fixation effect of the suture to the organism tissues when the variable loop is tightened, thereby achieving the best hand feeling and meeting the requirements of users.

Description

Band agnail operation suture thread containing variable loop

Technical field

The present invention relates to a kind of tail end contain variable loop and be with barbed operation suture thread.

Background technology

Be with barbed operation stitching device, as operation suture thread, existing application clinically.This series products is when being applied to wound suture, and the agnail on operation suture thread allows stitching thread along suture needle tip direction through when injected organism tissue, and instead the movement in secondary direction is hindered, without the need to using the knotting of traditional operation suture thread in the process of wound suture.

About being with the invention of barbed operation stitching device, there are reports:

U.S. Patent number is 5,374,268 and 5,584, and 859 is that the invention of example describes the barbed operation stitching device of band, and wherein sliding with the instead secondary direction of barbed stitching thread in when injected organism tissue is controlled, without the need to tiing a knot on stitching thread during application.

With U.S. Patent number 5,931,855 is that the invention of example provides a kind of containing one way barbs operation suture thread.The shortcoming of the operation suture thread of such one way barbs is that its tail end also needs to use tradition knotting or other method to be fixed on when injected organism tissue by operation suture thread.

For overcoming above-mentioned shortcoming, some inventions provide and are added with at stitching thread tail end the mechanism stoping and slide.Invention described by U.S. Patent Application No. 2010/0298871 provides and connects one piece of larger parts pull-out in case the barbed operation suture thread of leukorrhagia stopping slides from when injected organism tissue at operation suture thread tail end.Another kind of similar invention is the parts that can be connected or be fixed on when injected organism tissue at band barbed operation suture thread tail end connection anchor-shaped and other.As Chinese invention patent application number contains anchor-shaped parts for 200580023753.3 tail ends provided and is with barbed operation suture thread.In use, operation suture thread passes from when injected organism tissue, and its tail end anchor-shaped parts hook on when injected organism tissue to reach fixation.The defect of this type of invention is that tail end link needs larger volume and intensity, and therefore these larger parts of this series products easily produce larger foreign body sensation in order to ensure that band agnail operation suture thread is not drawn out when injected organism tissue.The complexity that different parts add processing technique is connected aborning in addition at operation suture thread tail end; The quality of product also compares and is difficult to control.

U.S. Patent Application No. 2010/0087855A1 provides and adds some reciprocal agnails at the tail end of the operation suture thread of band agnail.When be with the operation suture thread of agnail along needle point direction through when injected organism tissue time, agnail stops operation suture thread to be drawn out from when injected organism tissue in the other direction.The shortcoming of this design is that agnail must have a greater number just can play the effect stoping operation suture thread to be drawn out in the other direction; And the longer agnail Suture portions in the other direction that contains is difficult to process in sew up wound, and it is the foreign body importing patient's wound.

U.S. Patent Application No. 2011/0251639A1 is that the invention of example provides a kind of bidirectional dual pin that contains containing barbed operation suture thread.This series products can overcome the shortcoming of the operation suture thread containing one way barbs.But when being used in sew up wound, operator must sew up to positive and negative both direction from the middle of wound, thus decrease the degree of freedom of operation and add the complexity of operation.

The invention of European Patent Application No. to be EP22486857 be example provides the one way barbs operation suture thread that a kind of tail end contains shaping ring.During use, after band pin end passes when injected organism tissue, operation suture thread is connected on when injected organism tissue through tail end shaping ring by back stitching again.The major defect of this invention is the effect that back stitching passes that tail end shaping ring just plays location.Because shaping ring can not tighten up, its fixed effect is undesirable.Special in wound tension force is larger, user must be held stitching doubling and keep some tension not make wound dehiscence, thus reduces the degree of freedom of operation technique.Its another shortcoming is that the size design of shaping ring is difficult to obtain desirable Clinical practice effect: shaping ring is too small, and operator is difficult to location and perforation when back stitching; Shaping ring is excessive and have excessive foreign body to import in patient body.The shaping ring processing technique more complicated of this series products tail end in addition; Strength Mass is difficult to ensure.As the Chinese Patent Application No. melting method that to be 200910246814.2 provide.In order to improve, further provide reprocessing step with group inventor, the intensity of shaping ring is strengthened in the coating processing carrying out macromolecular material after the molding of tail end shaping ring again described by U.S. Patent Application No. 2011/0251639A1.

The invention of U.S. Patent Application No. US20120245629A1 provides the one way barbs operation suture thread that a kind of tail end contains variable loop.During use, after band pin end passes when injected organism tissue, back stitching, through tail end variable loop, is tightened up and is connected on when injected organism tissue by operation suture thread again.Because the endoporus of variable loop can be comparatively large, operator is easy to back stitching perforation location, does not have unnecessary foreign materials after tightening up.To be its variable loop be by a shaping ring by operation suture thread main body Hui Rao through forming for major defect of this invention.Its shaping ring, except having the defect of above-mentioned tail end with the one way barbs operation suture thread of shaping ring, during use, tightens up requirement and feel that variable loop is difficult to meet different users.

Summary of the invention

The invention provides a kind of tail end and contain variable loop and operation suture thread with agnail.This sutural front end has the sharp suture needle or the parts that penetrate function, and middle part is elongated and is with barbed stitching thread, and tail end is the variable loop containing button knot.During use, after band pin end passes when injected organism tissue, back stitching passes the variable loop of tail end again.Because the endoporus of variable loop can be comparatively large, operator is easy to back stitching perforation location, pull middle part stitching thread main body make its buckle tie in slide and tighten up, there is no unnecessary foreign materials after completing.Major advantage of the present invention is when Clinical practice, and variable loop is while tightening up, and the frictional resistance between operation stitching doubling main body and button knot makes it not be free to slide.User need not haul stitching thread and keep tension force, adds the motility of operation technique and degree of freedom and has the fixation of desirable when injected organism tissue.

The invention provides the design of multiple button knot, including but not limited to the button knot with preventing from pulling mechanism.Stitching thread main body stitching thread after the resistance and variable loop of buckleing slip in knot tighten up that the structure of button knot and degree of tightness can control middle part is fixed on the effect on when injected organism tissue, reaches best feel and the requirement of user or Producer with this.

Accompanying drawing explanation

In order to more fully describe the present invention, the following drawings is intended to help understand instead of limit right of the presently claimed invention:

Fig. 1 contains variable loop according to a kind of tail end provided by the invention and operation suture thread with agnail: tail end variable loop and button knot are containing agnail.Schematic diagram has and sharply penetrates the suture needle of function or the front end 1 of parts, and the elongated of middle part also contains the variable loop 4 buckleing knot 3 with barbed stitching thread main body 2 and tail end.

Fig. 2 contains variable loop according to a kind of tail end provided by the invention and operation suture thread with agnail: the variable loop of tail end and button knot are containing agnail.Schematic diagram has and sharply penetrates the suture needle of function or the front end 1 of parts, the elongated of middle part and with barbed stitching thread main body 2 and tail end have containing agnail buckle knot 5 containing agnail variable loop 6.

Fig. 3 contains variable loop according to a kind of tail end provided by the invention and operation suture thread with agnail: the end buttock line of button knot 7 is fixed in button knot.

Fig. 4 contains two variable loop 9 according to a kind of tail end provided by the invention and operation suture thread with agnail: its button knot 8 is around two variable loop.

Fig. 5 is the design according to a sharp anti-slip button knot provided by the invention: the end buttock line of button knot beats one or more knot 10 in case clamping knot pulls.

Fig. 6 is the design according to another kind of anti-slip button knot provided by the invention: the end buttock line of button knot connects one piece of stereo block part 11 in case clamping knot pulls.Its stereo block part 11 can process at suture ends or connect manufactured piece of part at sutural buttock line end.

Detailed description of the invention

Following examples will the present invention is further illustrated by reference to the accompanying drawings.

Embodiment 1

See Fig. 1 and 3, when Clinical practice, operator inserts in wound when injected organism tissue with by front end suture needle 1, after extraction, the stitching thread main body of front end suture needle 1 and pars intermedia bit strip agnail is had mercy on through variable loop 4 and is tightened up for 2 times.In variable loop 4 tightening process, tractive stitching thread main body 2 is also tightened up and is buckled knot 3 or 7 and be fixed on when injected organism tissue by stitching thread with this.

Embodiment 2

See Fig. 2, when Clinical practice, front end suture needle 1 is inserted in wound when injected organism tissue by operator, after extraction, the stitching thread main body of sharp for front end suture needle 1 pars intermedia bit strip agnail is had mercy on for 2 times through the barbed variable loop 6 of band and is tightened up.In variable loop 6 tightening process, stitching thread is fixed on when injected organism tissue with this by the tractive stitching thread main body 2 also barbed knot 5 of buckleing of belt tensioner.

Embodiment 3

See Fig. 4, when Clinical practice, front end suture needle 1 is inserted in wound when injected organism tissue by operator, the stitching thread main body of front end suture needle 1 and pars intermedia bit strip agnail is had mercy on through two variable loop 9 for 2 times after extraction, pull stitching thread main body 2 to tighten up dicyclo, with this, stitching thread is fixed on when injected organism tissue.This design provides the fixing of more firmly when injected organism tissue.

Embodiment 4

See Fig. 5, tractive stitching thread main body 2, variable loop 4 tightens up, wherein detain the end buttock line of knot 3 the knot beaten or the anti-clamping of multiple knot 10 tie 3 and drawn and get loose.

Claims

1. a tail end contains variable loop and is with barbed operation suture thread.This sutural front end has the sharp suture needle or the parts that penetrate function, and middle part is elongated and is with barbed stitching thread main body, and tail end is the variable loop containing button knot.

2., according to claim 1, the variable loop with barbed operation suture thread tail end is one or more circulus.

3. according to claim 1, can with agnail or without agnail on the variable loop with barbed operation suture thread tail end.

4. a tail end contains variable loop and is with barbed operation suture thread.This sutural front end has the sharp suture needle or the parts that penetrate function, and middle part is elongated and is with barbed stitching thread main body, and tail end is the variable loop containing anti-slip button knot.

5., according to claim 4, the variable loop with barbed operation suture thread tail end is one or more circulus.

6., according to claim 4, the anti-slip button knot with barbed operation suture thread is containing being connected to buttock line end, and size is greater than the stereo block part of suture diameters.

7., according to claim 4, the anti-slip button knot with barbed operation suture thread is containing beating the one or more knots on buttock line.