CN210077748U

CN210077748U - Medical anastomosis device

Info

Publication number: CN210077748U
Application number: CN201822093614.5U
Authority: CN
Inventors: 王亮
Original assignee: Zhejiang Provincial Peoples Hospital
Current assignee: Zhejiang Provincial Peoples Hospital
Priority date: 2018-12-13
Filing date: 2018-12-13
Publication date: 2020-02-18
Anticipated expiration: 2028-12-13

Abstract

The utility model relates to a surgical operation technical field, concretely relates to medical anastomosis device. The method comprises the following steps: the head end and the tail end of the inosculating mechanism are both connected with suture lines; the suture line is connected with the anastomosis mechanism, and is respectively provided with a first free end and a second free end which are positioned at the outer sides of the two ends of the anastomosis mechanism; the end of the anastomosis mechanism, which is close to the first free end, is provided with a traveling end head with a small end and a big tail, the anastomosis mechanism is provided with a cross section size larger than the suture line, and the anastomosis mechanism and the suture line are coupled into a whole. The advancing tip is specifically conical, pyramidal, or other shape having a head dimension larger than a tail dimension. The device has reduced the sewing number of times of stylolite, adopts the mechanism of coincide to replace the sutural part of stylolite to can ensure the stability of operation with the stylolite as far as possible in the tendon or other tissues, simultaneously, along with the reduction that the stylolite was knotted, reduce the operation degree of difficulty, make the time of operation reduce, improved the efficiency of operation.

Description

Medical anastomosis device

Technical Field

The utility model relates to a surgical operation technical field, concretely relates to medical anastomosis device.

Background

The surgical operation requires the connection of the cut or fracture of the injured muscle, blood vessel, nerve and other body tissues, and the suture is one of the main means for solving the above connection, and the suture has an important role in the initial healing of the wound as a sterile line for wound healing, tissue ligation and tissue fixation.

In clinical procedures, in particular, the suture is tied to a needle at one end, passed through the severed tissue by the needle in single or multiple passes or shuttles as required by the suturing technique, and tied to form a stable single or complex loop to hold the severed tissue together. The purpose of making a knot in the suture is to prevent the suture from loosening and falling after the suture is sutured, and this knot is a time-consuming task that directly affects the effect of the operation. In addition, the knotting time and effect directly affect the operation progress, and in some surgical operations with small openings and limited movement space, knotting of sutures is a very difficult task.

Known surgical sutures include single strand sutures and multi-strand sutures. The single strand suture requires the tying of one or more knots to secure the constraint of the suture, and once the knot slips, the tissue may crack; the knot is not tied tightly, a gap is formed in the tissue to cause bleeding, the knot is tied too tightly, the blood circulation of local tissue is affected, and the wound is healed slowly. Clinically, an operator generally needs to tie 3 knots for safety, easily-sliding threads even tie 5-8 knots, frequent knotting takes a lot of time for the operation, and a lot of knots are left in the body of a patient, so that the wound healing effect and the wound attractiveness are affected.

Recently, a suture in which barbs are formed on an outer surface has been developed and used. Because of the above-described barbs, such a suture does not easily slip, and therefore, after suturing, such a suture does not easily come loose.

Particularly, in tendon surgery, the technical requirement of the surgical anastomosis of tendon detachment is complex, and a suture needs to be detached from tissues at two ends back and forth according to a suture method to keep a certain tension, so that a complex heterocyclic ring is formed finally. The related operation is complex, difficult and easy to fail. Clinically, the frequent operation of the operating doctor takes a lot of time for the operation, and a lot of knots are left in the body of a patient, so that the healing effect of the tissue is influenced. Meanwhile, due to the relationship of mechanism tissue structures, even if the existing suture with barbs is applied to tendon surgery, the problem that the recovery of the suture wound is slow and the effect after the surgery is influenced also exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems and providing a medical anastomosis device. The medical anastomosis device is used for suturing the surgical fracture surface, and the anastomosis device can effectively and tightly suture the disconnected two sides, can keep tissues stably fixed and can improve the postoperative recovery speed and recovery effect.

In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:

a medical anastomosis device, comprising:

the head end and the tail end of the inosculating mechanism are both connected with suture lines;

the suture line is connected with the anastomosis mechanism, and is respectively provided with a first free end and a second free end which are positioned at the outer sides of the two ends of the anastomosis mechanism;

the end of the anastomosis mechanism, which is close to the first free end, is provided with a traveling end head with a small end and a big tail, the anastomosis mechanism is provided with a cross section size larger than the suture line, and the anastomosis mechanism and the suture line are coupled into a whole. The advancing tip is specifically conical, pyramidal, or other shape having a head dimension larger than a tail dimension.

Specifically, the suture thread has a first free end and a second free end, the first free end is used as a head of the suture thread in the advancing direction and used for passing through between the separated tendons or other body tissues and driving the anastomosis mechanism to penetrate into the separated tendons, the second free end of the suture thread is located behind the advancing direction, the second free end of the suture thread is still located outside the tendons along with the fact that the anastomat passes through the tendons along with the first end, the second end of the suture thread is used for knotting, and the tail of the suture thread is fixed. The anastomosis mechanism is provided with a conical advancing end head in the direction consistent with the advancing direction of the suture line, the advancing end head is convenient for the anastomat to advance in the tendon, and the advancing end head is matched with the first end to shuttle between tendon tissues. Thus, the tip of the chase is located on the first free end.

Preferably, the anastomosis mechanism is provided with a barb, and the tail end of the barb points to the second free end.

That is to say that the mechanism surface that coincide is provided with the barb, and barb evenly distributed is on the mechanism surface that coincide, and the barb slope sets up, and specific incline direction is the second free end, and such setting makes the barb can not cause great resistance at the shuttle in-process of stylolite, and when the stylolite withdraws from backward, but has certain resistance.

Preferably, the barbs are angled at an angle of 15-20 degrees with respect to the surface of the anastomosis mechanism.

Preferably, the anastomosis mechanism and the suture line are both provided with scale marks.

Preferably, the starting part of the scale mark is positioned on the anastomosis mechanism, the starting part of the scale mark is positioned at one end of the anastomosis mechanism adjacent to the second free end, and the scale mark extends towards two sides from the starting part respectively.

This creates criteria on the surface of the stapler that define the shuttle distance of the stapler between the tendons, so that the stapler can be specifically controlled inside the tendons.

Preferably, the first free end and/or the second free end of the suture thread is provided with a suture needle.

The suture needle is coupled with the first free end or the second free end. And the suture needle of the second free end is arranged according to the actual situation as required.

Preferably, the part of the suture between the first free end and the anastomotic device and/or the part of the suture between the anastomotic device and the second free end is a double strand or a multiple strand.

Preferably, the anastomosis mechanism is flat, and the section of the anastomosis mechanism is crescent, rectangular or elliptical. In order to ensure that the anastomat can smoothly shuttle inside the tendon, ensure the strength of the anastomat and avoid the anastomat from damaging tendon tissues as little as possible, the anastomat is arranged to be flat.

Preferably, the anastomosis mechanism has a length to diameter ratio of 10-300.

Preferably, the cross-sectional dimension of the anastomotic device increases from the end adjacent to the first free end to the end adjacent to the second free end.

Preferably, a barb is arranged on a part of the suture line between the second free end and the anastomosis mechanism, and the direction of the barb points to the first free end.

After the suture has entered the body tissue, the advance is stopped to a certain extent, and in order to prevent the suture from being pulled further forward, barbs are provided, in particular on the part of the suture between the second free end and the anastomosis mechanism, which barbs are directed towards the first free end. That is to say precisely the foremost end of the barb arrangement is located at the entry point of the human tissue. This provides some resistance to further advancement of the suture due to the barbs provided on the suture at that portion. Thereby improving the stability of the anastomosis device in the practical application process.

Preferably, a fastener is arranged between the anastomosis mechanism and the second free end.

The fixator is used for knotting the rear half part of the suture line, namely the part behind the anastomat and positioned outside the tendon tissue to prevent the suture line from loosening, the simple suture line cannot effectively ensure the stability of the suture line through the knots as few as possible, and therefore, the fixator is required to be arranged to fix the suture line so as to improve the stability of the operation.

Compared with the prior art, the utility model, beneficial effect is: the suture times of the suture lines are reduced, the suture parts of the suture lines are replaced by the anastomosis mechanism, so that the stability of the operation can be ensured by the suture lines as few as possible in the tendon or other tissues, the number of knotted suture lines is reduced, the more damage to the tendon caused by reciprocating shuttle in order to knot is reduced, the success rate of the operation is improved, a positive foundation is provided for tissue healing, and the reduction of the attractiveness and the roughness and the pattern obstacle caused by surface thought due to excessive knotting of wounds are avoided; meanwhile, with the reduction of knotting of the suture lines, the operation difficulty is reduced, the operation time is shortened, and the operation efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of an anastomosis device according to the present invention;

fig. 2 is a further schematic structural view of the anastomosis device of the present invention;

fig. 3 is a further schematic structural view of the anastomosis device of the present invention;

fig. 4 is a further schematic structural view of the anastomosis device of the present invention;

fig. 5 is a further schematic structural view of the anastomosis device of the present invention;

fig. 6 is a further double-structure schematic view of the anastomosis device of the present invention;

FIG. 7 is a schematic view of the anastomosis device of the present invention in position in the body tissue;

FIG. 8 is a schematic view of the tail of the anastomosis device of the present invention after it has been introduced into body tissue;

FIG. 9 is a schematic view of the anterior portion of the anastomosis device after it has entered the body tissue;

FIG. 10 is a schematic view of the anastomosis device of the present invention after completion of the post-implantation procedure;

fig. 11 is a schematic structural view of the fastener of the present invention.

In the figure:

1, an anastomosis mechanism;

2, sewing thread;

3 a traveling end;

4, barbs;

5, scale marking;

6, sewing a needle;

7 a holder;

8 human tissue.

Detailed Description

The technical solution of the present invention is further described and illustrated by the following specific embodiments.

Unless otherwise stated, the raw materials used in the examples of the present invention are all the raw materials commonly used in the art, and the methods used in the examples are all the conventional methods in the art.

A medical stapling device, as shown in fig. 1, for suturing tissue in surgery, in particular in surgery, the device comprising in particular (tissue here comprising human tissue 8 or animal tissue):

the head end and the tail end of the anastomosis mechanism 1 are both connected with suture lines 2; the anastomosis mechanism 1 and the suture 2 are formed from a material that is absorbable by the body, although the invention is not limited thereto.

The suture line 2 is connected with the anastomosis mechanism 1, and is respectively provided with a first free end and a second free end which are positioned at the outer sides of the two ends of the anastomosis mechanism 1;

the anastomosis mechanism 1 is the most important part of the medical anastomosis device, which is mainly used for placing the medical anastomosis device in a human tissue 8 structure to connect two separated parts of human tissue 8, the suture 2 is another important part of the medical anastomosis device, since the suture 2 is arranged at both ends of the anastomosis mechanism 1 and the suture 2 has free ends, i.e. a first free end and a second free end, while being connected with the anastomosis mechanism 1, from another point of view, the suture 2 comprises a first suture 2 and a second suture 2, the first suture 2 is located in front of the anastomosis mechanism 1, and the second suture 2 is located behind the anastomosis mechanism 1.

The anastomotic device 1 has a cross-sectional dimension greater than that of the suture 2, so that the anastomotic device 1 is carried by the suture 2 and follows the movement of the suture 2. The anastomosis mechanism 1 is coupled with the suture 2 into a whole, and at least two ends of the anastomosis mechanism 1 are coupled with the suture 2 into a whole.

The end of the anastomotic device 1 situated in the direction of the first free end has a tapered advancing tip, i.e. the end of the anastomotic device 1 connected to the first suture 2 has a tapered advancing tip.

Meanwhile, the surface of the anastomosis mechanism 1 is also provided with a barb 4, and the tail end of the barb 4 points to the second free end. That is to say that 1 surface of anastomotic device is provided with barb 4 to barb 4 is evenly distributed on 1 surface of anastomotic device, and barb 4 slope sets up, and specific incline direction is towards the second free end, and such setting makes barb 4 can not cause great resistance in the shuttle process of stylolite 2, and when stylolite 2 withdraws from backward, but has certain resistance.

The barbs 4 are arranged at an angle of 15-20 degrees with respect to the surface of the anastomosis device 1, the barbs 4 being resilient but having a basic angle of 15-20 degrees.

As regards the shape of the anastomosis means 1, in particular, the anastomosis means 1 is flat, that is to say the section of the anastomosis means 1 is flat, as opposed to circular, for example the section of the anastomosis means 1 is crescent, rectangular or elliptical. Of course, a shape having a smooth cross section is preferable. Moreover, the tapered advancing tip of the anastomosis mechanism 1 is matched with the flat main body, so that the anastomosis mechanism 1 can more easily shuttle in the human tissue 8, and further injury to the human tissue 8 caused by the anastomosis mechanism 1 is avoided. Meanwhile, the anastomosis mechanism 1 has a certain length, which is 5-50mm and the like. Of course, the present invention is not limited thereto, and the length, thickness and shape of the anastomosis mechanism 1 can be determined according to the specific situation of the severed human tissue 8, and the length, material and other parameters of the suture thread 2 can be adjusted according to the specific situation.

On the basis of the above, the anastomosis mechanism 1 should have a certain length-diameter ratio, which is 10-300. Only with a certain length-diameter ratio can it be ensured that the anastomosis mechanism 1 causes less negative effects in the body tissue 8.

In order to accurately fix the anastomosis mechanism 1 on the operation part, the anastomosis mechanism 1 and the suture 2 are both provided with scale marks 5. The starting part of the scale mark 5 is positioned on the anastomosis mechanism 1, the starting part of the scale mark 5 is positioned at one end of the anastomosis mechanism 1 adjacent to the second free end, and the scale mark 5 extends from the starting part to two sides respectively. That is, the starting point of the scale is located on the anastomosis mechanism 1 biased towards the second free end.

For inserting the stapling mechanism 1 into the body tissue 8, a suture needle 6 is provided at a first free end and/or at a second free end of said suture 2. That is, only the first free end having the suture needle 6 can be inserted into the body tissue 8, thereby using the anastomotic device to fixedly connect the severed body tissue 8. Of course, the second free end may also be provided with a needle 6, where the needle 6 may facilitate the later fastening and ending of the suture 2.

The suture thread 2 connected to the anastomotic device 1 is made of a material partially or entirely of a double strand, or partially or entirely of a multiple strand.

The anastomosis mechanism 1 is formed integrally with the suture 2 (as shown in figure 1) or later bonded together (as shown in figure 2).

As shown in fig. 1, in one case the suture 2 is glued to the anastomotic device 1. As shown in fig. 2, the suture 2 at the head end and the tail end are respectively connected with the head end and the tail end of the anastomosis mechanism 1.

The improvements of the anastomosis mechanism 1 and the suture 2 are as follows:

firstly, the first free end is taken as the advancing end, the front end of the anastomosis mechanism 1 is connected with the first free end, so that the section size of the anastomosis mechanism 1 is gradually increased from the front end to the rear end, and the structure can ensure that when the anastomosis mechanism 1 stops inserting, if the anastomosis mechanism 1 moves forwards, a resistance exists, so that the problem of positioning the anastomosis mechanism 1 between two separated human tissues 8 caused by the unconscious advancing of the anastomosis mechanism 1 after the inserting is finished is avoided. That is, when the user stops pulling the anastomosis device 1 forward, the anastomosis device 1 presents a resistance force forcing it to stop in place, thus avoiding the displacement of the anastomosis device 1 due to non-subjective external forces.

Next, as shown in fig. 3, barbs 4 are provided on the part of the suture 2 between said second free end and the anastomosis mechanism 1, the barbs 4 being directed towards the second free end. That is, the barb 4 is arranged on the suture 2, and the suture 2 is arranged between the second free end and the anastomosis mechanism 1, that is, the barb 4 is arranged on a length of the suture 2 after the advancement direction of the anastomosis mechanism 1. The barbs 4 are arranged on part of the suture thread 2.

Specifically, the barb 4 is disposed at a position spaced apart from the needle 6 by a length of suture 2, and the length of suture 2 is different from at least the portion of suture 2 on which the barb 4 is disposed. It is critical that the direction of the barbs 4 on the length of suture 2 provided with barbs 4 is inclined towards the first free end, i.e. the direction of the barbs 4 on the length of suture 2 is opposite to the direction of inclination of the barbs 4 on the suturing mechanism.

Thirdly, as shown in fig. 4, the suture 2 in front of the anastomosis mechanism 1 is also provided with barbs 4, and the barbs 4 are inclined in the same direction as the barbs 4 of the anastomosis mechanism 1.

Fourthly, as shown in fig. 5, on the suture 2 behind the anastomosis mechanism 1, the barb 4 having the opposite inclination direction to the barb 4 of the anastomosis mechanism 1 has been provided, and on the basis of this, between the front end having the barb 4 and the anastomosis mechanism 1, the barb 4 is also provided, and the inclination direction of the barb 4 is the same as the direction of the barb 4 of the anastomosis mechanism 1.

As a further improvement to the above-mentioned existing device, it is specifically:

as shown in fig. 6, a holder 7 is arranged between the stapling mechanism 1 and the second free end, the holder 7 being arranged on the suture 2 and being adjustable on the suture 2 and being fixable relative to the suture 2.

As shown in fig. 11, the structure of the holder 7 is specifically as follows:

the fixator 7 is provided with a hollow umbrella-shaped component, the fixator 7 is provided with a hole 72 penetrating through a main body 71 of the fixator, the hole 72 is located at the top of the umbrella-shaped component and penetrates through the inside and outside of the top of the main body 71, the lower half part of the main body 71 is petal-shaped, a barrier 73 is arranged in the main body 71, the barrier 73 is used for contacting with tissues, a plurality of petal-shaped objects 74 are arranged on the barrier 73 and used for being matched with the lower half part of the main body, and the petal-shaped objects 74 of the barrier 73 and the lower half part of the main body are elastic structures. The suture is threaded through the bottom of the barrier 73 and exits the top of the body 71 through the interior of the body 71.

The holder is used in the case where the rear half needle is not provided, and is used to fix the suture thread. Since the main body 71 and the blocking body 73 have elasticity therebetween, the tension of the suture can be adjusted by adjusting the magnitude of the force when the suture is fixed.

As shown in fig. 8, 9 and 10, the following description will be further made by taking the device as an example applied to a tendon of a severed human tissue:

resetting the far end and the near end of the broken tendon respectively to pay attention to whether the tendon rotates or not, aligning the scale 0 point on the anastomotic device with the broken end of the near end of the tendon, measuring the length (i.e. needle insertion point) of the tail suture 2 to be knotted and fixed to the near end, marking the tendon, making a longitudinal small incision (or not making a direct needle insertion) at the needle insertion point by using a sharp blade, obliquely or vertically penetrating the suture needle 6 at the head end of the anastomotic device with the barb 4 and the scale mark from the needle insertion point to the center of the tendon or slightly deviating the tendon, horizontally inserting the needle, penetrating the head end needle from the center of the broken end of the near end of the tendon, drawing the anastomotic device with the barb 4 and the scale mark in the near end by the head suture 2, stopping drawing when the zero scale of the anastomotic device slides to the broken end of the near end, and drawing the tail suture 2 with the needle, a suture 2 is cut off by scissors near a suture needle 6, the suture needle 6 at the tail end vertically or obliquely penetrates into the tendon from a needle inserting point and penetrates out from the opposite side or two sides of the tendon, the suture 2 with the needle and the other cut suture 2 are knotted and fixed together, a part of the tendon is bound together, and an anastomosis device with a barb 4 and a scale mark is fixed to prevent the tendon from sliding towards the far end or the near end; the head end suture needle 6 is horizontally inserted from the center of the broken end of the far end of the broken tendon or slightly deviates from the center point, and penetrates out of the tendon when the length of the head end suture needle is equal to that of the broken end of the near end suture needle and the length of the broken end of the near end suture needle, the suture needle 2 pulls the anastomosis device with the barb 4 and the scale mark to continuously slide in the far end of the tendon, and when the 0-point scale of the anastomosis body slides to the broken end of the far end of the broken tendon, the traction is stopped; the suture 2 with the needle at the head end is close to the suture needle 6, one suture 2 is cut off by scissors, the suture needle 6 at the head end vertically or obliquely penetrates into the tendon from the needle insertion point and penetrates out from the opposite side or two sides of the tendon, the suture 2 with the needle and the other cut suture 2 are knotted and fixed together, and a part of the tendon is bound together, and the anastomosis device with the barb 4 and the scale mark is fixed to prevent the suture from sliding towards the far end or the near end.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims

1. A medical stapling device, comprising:

the end head of the anastomosis mechanism, which is positioned at one end adjacent to the direction of the first free end and has a small end and a big tail, is provided with a cross section size larger than the suture line, and the anastomosis mechanism and the suture line are coupled into a whole.

2. Medical anastomosis device according to claim 1, characterized in that said anastomosis means are provided with barbs, the tail end of which is directed towards the second free end.

3. The medical anastomosis device according to claim 2, wherein said barbs are angled at an angle of 15-20 degrees with respect to the surface of the anastomosis mechanism.

4. The medical anastomosis device of claim 1, wherein said anastomosis mechanism and suture are provided with graduated markings.

5. The medical anastomosis device according to claim 4, wherein the start of the graduated markings is located on the anastomosis means and at an end of the anastomosis means adjacent to the second free end, the graduated markings extending from the start to either side.

6. The medical anastomosis device according to claim 1, wherein the first free end and/or the second free end of the suture has a suture needle.

7. The medical anastomosis device according to claim 1, wherein part or all of the suture thread connected to the anastomosis means is bifilar or multifilar.

8. The medical anastomosis device according to claim 1, wherein said anastomosis means is flat, having a crescent, rectangular or oval cross-section.

9. The medical anastomosis device according to claim 1, wherein said anastomosis means has an aspect ratio of 10-300.