CN215960083U - Tissue cavity anastomosis ring - Google Patents

Abstract

The utility model discloses a tissue cavity anastomosis ring, which belongs to the field of medical instruments and comprises two anastomosis ring bodies, wherein 1-2 circles of anastomosis salient points are arranged on the inner circle of the anastomosis surface of each anastomosis ring body, an anastomosis ring fixing ring is arranged on the outer circle of the anastomosis surface of each anastomosis ring body, and a plurality of fixing convex thorns and a plurality of fixing grooves which are matched with each other are distributed on the fixing ring at intervals. The outer side wall of the anastomosis ring body is provided with a plurality of suture fixing through holes, and the outer side of the suture fixing through holes on the outer side wall of the anastomosis ring body is provided with a detachable handle and a clamping groove. The two anastomosis rings can be used for carrying out precise anastomosis on the blood vessel stump, so that the anastomosis quality of the tissue cavity is improved, the anastomosis time of the tissue cavity is shortened, bleeding is reduced, the operation safety is improved, the structure is simple, and the cost is low.

Description

Tissue cavity anastomosis ring

Technical Field

The utility model belongs to the field of medical instruments, and relates to the field of vascular surgery.

Background

In the transplantation operation, the operation time is long, and a great deal of time is spent on anastomoses of various cavities and channels. The tissue cavities comprise blood vessels, bile ducts, bronchus, ureter and other human cavities, the requirement for anastomosis is very high, and slight leakage can cause hemorrhage or the formation of various fistulas, thereby often endangering life.

The various cavity anastomosis operations are performed at the depth of the body cavity, the suturing requirement is extremely high, the stitch requirement is extremely dense, and the anastomosis of one needle not only brings great labor to doctors, costs a great amount of time, and brings increased risks to patients.

Disclosure of Invention

The present invention is directed to a tissue tract anastomosis ring, which solves the above-mentioned problems of the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: a tissue cavity anastomosis ring comprises an anastomosis ring body, wherein 1-2 circles of anastomosis spikes are arranged on the inner circle of an anastomosis surface of the anastomosis ring body, an anastomosis ring fixing ring is arranged on the outer circle of the anastomosis surface of the anastomosis ring body, and a plurality of matched fixing convex spikes and a plurality of fixing grooves are uniformly distributed on the fixing ring at intervals. The inner ring of the anastomosis surface and the fixing ring of the anastomosis ring are distributed in a concentric circle with the center of the anastomosis ring body, and a clamping groove for fixing the anastomosis ring body by using a forceps holder is arranged on the outer annular wall of the anastomosis ring body.

The outer annular wall of the anastomosis ring body is provided with a plurality of suture fixing structures which comprise fixing rings or fixing through holes.

After the plurality of fixed convex thorns and the plurality of fixed grooves of the fixing ring are uniformly distributed at intervals to enable the anastomotic surfaces of the two anastomotic ring bodies to be opposite and rotate for a certain angle, the plurality of fixed convex thorns can respectively correspond to the plurality of fixed grooves one by one, and the plurality of fixed convex thorns can be clamped into the plurality of fixed grooves to enable the anastomotic surfaces of the two anastomotic ring bodies to be close to and locked.

Further, a tissue cavity says anastomose ring, still including the suture fixed ring body that is equipped with the opening, a plurality of suture fixed points are established to the ring on the suture fixed ring body, and the fixed ring body inner chamber of suture is big or small adaptation with the ring body outside annular wall that coincide, can the adaptation joint at the ring body outer wall that coincide. The outer side wall of the suture fixing ring body is provided with a handheld handle.

Further, the suture fixing point comprises a rotatable upright post which is arranged on the outer wall of the suture fixing ring body in a circular cutting mode.

The rotatable stand column comprises a socket arranged on the outer wall of the suture fixing ring body and a rotary fixing rod, wherein the bottom of the rotary fixing rod is provided with a plug rod part, the upper part of the rotary fixing rod is provided with a handheld handle, and a suture perforation is arranged between the plug rod part and the handheld handle. The outer diameter of the anastomotic spikes is less than 0.5mm, the length of the anastomotic spikes is 0.5-1.5mm, and the distance between the anastomotic spikes is 0.5-1 mm.

The outer diameter of the fixed convex thorns is smaller than 1mm, and the length of the fixed convex thorns is smaller than the height h of the anastomosis ring body.

A plurality of alignment mark lines are printed in the height direction of the outer annular wall and the outer annular wall of the anastomosis ring body, and each alignment mark line comprises a bump mark line and a groove mark line. The bump marking lines and the groove marking lines are uniformly distributed and respectively arranged corresponding to the fixed convex thorns and the fixed grooves.

The distance from the inner edge of the anastomosis ring body to the outer edge of the anastomosis ring fixing ring of the anastomosis ring body is less than 4 mm.

The utility model discloses a tissue cavity anastomosis ring, which is characterized in that the side wall of a tissue cavity is clamped between anastomosis surfaces of two anastomosis ring bodies and fixed through the adaptive clamping of uniformly distributed fixing convex thorns and fixing grooves; the side wall of the tissue cavity is supported against the anastomotic surface of the anastomotic ring body on the opposite side through the anastomotic spikes which are uniformly distributed to form a sealing effect; before anastomosis, a plurality of suture diseases are sutured at the opening of the stump of the tissue cavity channel and are fixed on a suture fixing structure or a suture fixing ring body in a traction manner, so that the cavity channel of the stump of the anastomosis surface can not form a gap; the operation forceps are clamped in the clamping groove, so that the operation of tightly clamping the two anastomotic ring bodies is conveniently completed. Two anastomotic ring bodies used in the process of tissue cavity anastomosis are completely the same, and the anastomotic ring body has the advantages of low development cost, simple structure, low cost and strong practicability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 3 is a schematic view of the first embodiment of the present invention in a state configuration;

FIG. 4 is a schematic view of a state structure of a second embodiment of the present invention in use;

FIG. 5 is a schematic view of the construction of the suture retaining ring body of the present invention;

FIG. 6 is a schematic structural view of the present invention in use with a suture retaining ring body;

FIG. 7 is a schematic view of the vascular anastomosis of FIG. 3 according to the present invention;

the number identification corresponds to the name: 1. an anastomosis ring body; 11. fitting surfaces; 12. an outer annular wall; 2. Anastomosing the spine; 31. fixing the convex thorns; 32. fixing the groove; 4. Clamping the groove; 51. A fixing ring; 52. fixing the through hole; 6. a suture fixation ring body; 61. Opening the gap; 63. a handle; 641. A socket; 642. rotating the fixed rod; 643. a plug-in section; 644. a handle; 645. and (6) perforating the suture.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1-4, 6 and 7, the tissue cavity anastomosis ring comprises an anastomosis ring body 1, wherein 1-2 circles of anastomosis spikes 2 are arranged on the inner circle of an anastomosis surface 11 of the anastomosis ring body 1, an anastomosis ring fixing ring is arranged on the outer circle of the anastomosis surface 11 of the anastomosis ring body 1, and a plurality of matched fixing convex spikes 31 and a plurality of fixing grooves 32 are uniformly distributed on the fixing ring at intervals. The inner ring of the anastomosis surface 11 and the anastomosis ring fixing ring are distributed in a concentric circle with the center of the anastomosis ring body 1. And a clamping groove 4 for fixing the anastomosis ring body 1 by using forceps and clamps is arranged on the annular wall 12 at the outer side of the anastomosis ring body 1.

When in use, the two side stumps of the blood vessel to be anastomosed are respectively dissociated by 2-3cm, the blood vessel is clamped by a vascular clamp from the root of the dissociated stump, and other tissues adhered to the outer wall of the blood vessel are removed, so that the stump length of the blood vessel is proper, and the stumps are clean and tidy. The widths of the two overlapped blood vessel stumps are measured respectively, the widths are multiplied by 2, so that the circumferences of the two blood vessel stumps can be calculated, the outer diameters of the two blood vessel stumps are calculated, and two anastomosis ring bodies 1 matched with the outer diameters of the blood vessels are selected. The selection technique is as follows: if two autologous vessel stumps are anastomosed, the difference between the outer diameters of the two vessels is very small, and the annular inner diameter of the selected anastomotic ring body 1 is consistent with the outer diameter of the thinner vessel stump by taking the outer diameter of the thinner vessel stump as a standard; if one of the two vessel stumps to be anastomosed is a donor vessel, the outer diameters of the two vessels may differ slightly, and the ring-shaped inner diameter of the selected anastomotic ring body 1 is identical to the outer diameter of the thicker vessel stump on the basis of the thicker vessel outer diameter.

If the two autologous blood vessel stumps are anastomosed or the difference between the allogeneic blood vessels is small, the specific anastomosis operation is as follows:

firstly, two annular surgical clamps with clamping openings are respectively clamped on the clamping grooves 4 of the annular walls 12 at the outer sides of the two anastomotic ring bodies 1, and the anastomotic ring bodies 1 are respectively clamped and fixed at the annular clamping opening ends of the surgical clamps;

secondly, holding the surgical forceps by hands, and sleeving the anastomotic surfaces 11 of the two anastomotic ring bodies 1 opposite to each other outside the vessel stumps on the two sides respectively;

thirdly, 4-5 threading surgical needles are respectively uniformly distributed with threading on the edges of the free blood vessel stumps at two sides, the end parts of the surgical needle thread bodies are cut off and knotted to form a plurality of thread rings (3-5 are the best), and the surgical thread rings are pulled to roll the openings of the blood vessel stumps on the anastomotic surface 11 of the anastomotic ring body 1;

fourthly, the assistant respectively draws the operation wire loops at the two sides and adjusts the position relation between the opening at the blood vessel stump end and the inner ring opening at one side of the anastomotic surface 11 of the anastomotic ring body 1, so that the opening at the blood vessel stump end respectively and completely covers the inner ring opening of the anastomotic ring body 1;

fifthly, with the help of an assistant, the openings of the two side blood vessel stumps completely cover the inner ring opening of the anastomosis ring body 1 respectively and keep proper tension; a main surgeon holds a pair of surgical forceps clamping the anastomosis ring body 1 by one hand, so that the two anastomosis ring bodies 1 are gradually close to each other, a plurality of fixing convex thorns 31 distributed on the outer ring of the anastomosis surface 11 of the anastomosis ring body 1 on one side correspond to a plurality of fixing grooves 32 distributed on the anastomosis surface 11 of the anastomosis ring body 1 on the other side in a matched manner one by one, and meanwhile, a plurality of fixing grooves 32 distributed on the outer ring of the anastomosis surface 11 of the anastomosis ring body 1 on one side correspond to a plurality of fixing convex thorns 31 distributed on the anastomosis surface 11 of the anastomosis ring body 1 on the other side in a matched manner one by one.

Sixthly, the main surgeon holds a pair of surgical forceps holding the anastomosis ring body 1 by hands to ensure that a plurality of fixing convex thorns 31 on the outer circle of the anastomosis surface 11 of the left-hand anastomosis ring body 1 pierce the blood vessel wall and are clamped into a plurality of fixing grooves 32 on the outer circle of the anastomosis surface 11 of the right-hand anastomosis ring body 1; meanwhile, a plurality of fixing convex thorns 31 on the outer ring of the matching surface 11 of the right-hand side matching ring body 1 are clamped into a plurality of fixing grooves 32 on the outer ring of the matching surface 11 of the left-hand side matching ring body 1;

seventhly, continuously tightening the surgical forceps which clamp the anastomosis ring bodies 1 by the left hand and the right hand to enable the anastomosis surfaces 11 of the two anastomosis ring bodies 1 to be close to each other at the limit, and enabling the fixing convex thorns 31 of the anastomosis ring bodies 1 at the two sides to enter the fixing grooves 32 of the anastomosis ring body 1 at the other side at the limit; after the tightening is done, the two side anastomotic rings 1 are fastened to each other by the friction of the mating anchoring protrusions 31 and anchoring recesses 32.

Under the mutual fastening action force of the anastomosis ring bodies 1 on the two sides, anastomosis spikes 2 on the inner rings of the anastomosis surfaces 11 of the anastomosis ring bodies 1 respectively pierce the blood vessel walls of the corresponding stumps on the two sides, and are correspondingly supported in a one-to-one manner or are supported in a mutually staggered manner at the vacant positions of the anastomosis spikes 2 on the opposite side anastomosis surfaces 11, so that the cylindrical stumps of the blood vessel walls are fixed by 1-2 circles of the anastomosis spikes 2;

ninthly, cutting off the wire body pulled by the assistant from the root part, and cutting off the redundant vascular wall along the outer edge of the middle part of the two fitted anastomotic ring bodies 1;

the left hand and the right hand on the aperture surface are opened to clamp the operation forceps of the anastomosis ring body 1, and the operation forceps are withdrawn from the outer side of the anastomosis ring body 1 to clamp the clamping groove 4, thereby completing the vascular anastomosis operation.

If the difference of the blood vessels of the variant is large, the specific anastomosis operation is similar to the above, but the thin blood vessel stump needs to be obliquely resected, and the length of the oblique cuff with thick double side walls needs to be matched with the length of the thick double-layer cuff of the blood vessel after oblique resection. When the oblique cuffs are manufactured, the oblique direction of the cuffs points to one side of the body cavity, and the specific meaning is that the shorter side of the cuffs is positioned at a position with a larger space around the blood vessel. The oblique cuffs can increase the anastomotic perimeter of the stump at one side of the thin blood vessel, so that the anastomotic perimeter is matched with the perimeter of the stump of the thick blood vessel. Other operations are the same as above, and are not described herein again.

The structure of the tissue lumen anastomosis ring is further described below: the anastomosis ring body 1 is of an annular structure, the anastomosis surface 11 of the anastomosis ring body 1 is a neat plane, 1-2 circles of anastomosis spikes 2 are arranged in the inner circle of the anastomosis ring body and used for penetrating and fastening the blood vessel wall of the strutted blood vessel stump on the opposite side anastomosis surface, the anastomosis spikes 2 of the inner circle of the anastomosis ring body can be set to be 1 circle, but the mutual distance is smaller, so that the jointing effect of the blood vessel walls on two sides is ensured, and blood leakage after anastomosis is avoided; the anastomosis spike 2 can be set to be 2 circles, so that the anastomosis effect can be enhanced. The outer ring of the anastomosis surface 11 of the anastomosis ring body 1 is provided with an anastomosis ring fixing ring, the anastomosis ring fixing rings on two opposite sides can be fixed with each other, in the scheme, a plurality of matched fixing convex thorns 31 and a plurality of fixing grooves 32 are uniformly distributed at intervals on the fixing ring, after the anastomosis ring body 1 on two sides is subjected to appropriate angle dislocation, the fixing convex thorns 31 of the anastomosis ring body 1 on two sides can be clamped into the fixing grooves 32 on the opposite sides respectively, and therefore the anastomosis surfaces of the two anastomosis ring bodies 1 are opposite and fastened and fixed. And the clamping groove 4 is arranged on the annular wall 12 at the outer side of the anastomosis ring body 1, so that an operator can clamp the anastomosis ring body 1 in the clamping groove 4 by using matched operating forceps, and corresponding operation is carried out on the anastomosis ring body 1.

Further, as shown in fig. 1-4 and 7, the outer annular wall 12 of the anastomosis ring body 1 is provided with a plurality of suture fixing structures, including fixing rings 51 or fixing perforations 52. The outer annular wall 12 of the anastomosis ring body 1 is provided with the suture line fixing structure, so that the suture line can be fixed on the plurality of suture line fixing structures arranged on the outer annular wall 12 of the anastomosis ring body 1 without pulling the suture line sewed on the edge of the cuff of the blood vessel by an assistant during the third step of the anastomosis operation, and the complexity of the operation is reduced. However, in this pulling manner, the lengths of the pulling sutures need to be adjusted appropriately, so that the anastomosis ring body 1 is supported against the blood vessel stump, the cuffs of the whole blood vessel stump can be turned over integrally, and some edge line bodies cannot be tightened or are excessively loosened.

After the anastomosis of the vessels has been completed, these suture anchoring structures are rendered useless and can be removed from the outer annular wall 12 of the anastomosis ring body 1. This is taken into account when providing the suture anchoring structure, and if the anchoring structure 5 protrudes beyond the outer annular wall 12 of the anastomotic ring body 1, it is possible to provide a break point at the base of the anchoring structure 5, facilitating its removal after breaking. If it is a suture fixing perforation provided in the outer annular wall 12 of the anastomotic ring 1, it does not need to be removed.

Further, as shown in fig. 1, after the plurality of fixing protrusions 31 and the plurality of fixing grooves 32 of the fixing ring are uniformly distributed at intervals to make the anastomotic surfaces 11 of the two anastomotic ring bodies 1 opposite to each other and rotate by a certain angle, the plurality of fixing protrusions 31 can respectively correspond to the plurality of fixing grooves 32 one by one, and the plurality of fixing protrusions 31 can be clamped into the plurality of fixing grooves 32 to make the anastomotic surfaces 11 of the two anastomotic ring bodies 1 close to each other and locked. This adaptation is described in the above-mentioned documents and is not to be mentioned here again. When the two anastomosis ring bodies 1 are anastomosed and locked, the specific angle of the relative and rotation of the anastomosis surfaces 11 is related to the spacing distance between the fixed convex thorns 31 and the fixed grooves 32, and is an integral multiple of the circle center angle of the two adjacent fixed convex thorns 31 and the fixed grooves 32, but the optimal rotation angle is selected during specific operation. The standard of the optimal angle is to ensure that the cuffs of the two sides of the blood vessel stumps are aligned as much as possible, so that the blood vessel stumps are prevented from being twisted and folded.

Further, as shown in fig. 5 and 6, the tissue cavity anastomosis ring further comprises a suture fixing ring body 6 provided with a notch 61, a plurality of suture fixing points are arranged on the suture fixing ring body 6, and the inner cavity of the suture fixing ring body 6 is matched with the outer side annular wall 12 of the anastomosis ring body 1 in size and can be matched and clamped on the outer wall of the anastomosis ring body 1. The arrangement of the suture fixing ring body 6 is also convenient for an assistant to draw the suture sewed on the edge of the cuff of the blood vessel when the third step of the anastomosis operation is carried out, is convenient for adjusting the length of the suture in each direction and reduces the interference of the suture to the operation when the anastomosis is carried out. During specific implementation, the inner diameter of the ring body of the suture fixing ring body 6 is larger than the outer diameter of the anastomosis ring body 1, so that the traction of the surgical suture to the blood vessel cuff stump can fully expand the blood vessel cuff stump, fully cover the anastomosis opening of the anastomosis surface 11 of the anastomosis ring body 1, and avoid the occurrence of gaps and leakage during anastomosis. When the suture fixing ring body 6 is pulled, the suture fixing ring body can be pulled after being fixed by using forceps jaws, and a more convenient method is to arrange a handheld handle 63 on the outer side wall of the suture fixing ring body 6. What must indicate, in order to guarantee the tractive effect of 6 pairs of blood vessel stub tractive stylolite of the fixed ring body of suture, 6 internal diameters of the fixed ring body of suture must be greater than the external diameter of identical ring body 1, during the use, should put 6 covers of the fixed ring body of suture and treat the identical blood vessel stub, the best position makes and is located the position of keeping away from the blood vessel stub in identical ring body 1 rear, be convenient for fully expose the blood vessel stub vascular wall through the tractive stylolite, and do not occupy the region blood space of coincideing, fully expose the region field of vision of coincideing, blood vessel stub vascular wall integrality when guaranteeing to coincide, avoid the omission.

When the matching of the blood vessel stump cuff is finished, the redundant blood vessel wall should be cut off on the side walls of the two locking matching ring bodies 1. The blood vessel can be collapsed linearly, and the excised tissue together with the suture fixing ring body 6 can be easily removed from the replaced blood vessel and discarded through the notch 61 at one side of the suture fixing ring body 6.

As shown in fig. 5 and 6, the suture fixing points comprise concave slits, perforations or rotatable posts which are circularly cut on the outer wall of the suture fixing ring body 6. The main function of the suture fixing point is to fix the surgical suture which plays a role in pulling the residual end of the cuff of the blood vessel, and the surgical suture can be conveniently fixed at the suture fixing point. The concave cracks and the perforations are not different essentially, when in use, the other end of the pulling suture fixed on the edge of the blood vessel stump is fixed on the concave cracks or the perforations on the outer wall of the suture fixing ring body 6, and the length of the pulling suture is adjusted during fixing, so that the length of each pulling suture is ensured to be matched. The advantage of adopting rotatable stand is more obvious, can adjust the tractive length of the tractive operation suture of fixing at the incomplete end of blood vessel cuff through rotating, makes the tractive operation suture length of whole circle more adaptation. The adjusting method comprises the following steps: the rotatable upright post is rotated to lead the redundant traction suture to be wound on the periphery of the rotatable upright post, thus shortening the length of the traction line body.

As shown in fig. 5 and 6, the rotatable post includes a socket 641 formed on an outer wall of the suture fixing ring 6, a rotary fixing rod 642, a socket 643 formed at a bottom of the rotary fixing rod 642, a handle 644 formed at an upper portion of the rotary fixing rod 642, and a suture passing hole 645 formed between the socket 643 and the handle 644. By adopting the method, when the pulling suture line is fixed, the other end of the pulling suture line passes through the suture perforation 645 to be knotted and fixed, and the fixing effect is reliable. When fixing is required, the plunger 643 of the rotatable post is inserted into the insertion opening 641 provided in the outer wall of the suture fixing ring body 6. When the length of the pulling suture is required to be adjusted, the handle 644 disposed at the upper part of the fixing rod 642 is rotated by hand, the plunger 643 of the rotatable post is pulled out from the insertion opening 641 of the outer wall of the suture fixing ring body 6, and is rotated in one direction, so that the pulling suture pulling part is shortened to a matching length, and then the plunger 643 of the rotatable post is inserted into the insertion opening 641 of the outer wall of the suture fixing ring body 6. The adjustment is carried out at any time, and the adjustment is convenient, simple and reliable.

Further, the outer diameter of the anastomosis spike 2 is less than 0.5mm, and the length is 0.5-1.5 mm; the distance between the plurality of anastomotic spikes 2 is 0.5-1 mm. When the blood vessel is anastomosed, anastomotic surfaces 11 of the two anastomotic ring bodies 1 are mutually clung, 1-2 rows of anastomotic spikes 2 on the inner circle of the anastomotic surfaces 11 compress and fix the stumps of the blood vessel at two ends, and in order to ensure the compression effect of the stumps of the blood vessel walls at two sides, the anastomotic spikes 2 are in the shape of spikes. Can pierce into the vascular wall, prevent to slide between the vascular wall, in order to ensure fixed effect, the length of identical spine 2 is 0.5-1.5mm, chooses for use different length according to different vascular wall thickness. When the vein is anastomosed, the vein wall is thin, and the length of the anastomotic spine 2 is short but not less than 0.5mm, so that the fixing effect is ensured. When the artery is anastomosed, the length of the anastomotic spine 2 should be longer because the artery wall is thicker.

More relevant are: when in anastomosis, the anastomosis surfaces 11 of the anastomosis ring bodies 1 on the two sides are mutually clung, if the positions of the anastomosis spikes 2 of the inner ring correspond one to one, the two anastomosis spikes 2 are mutually supported, and the length sum of the two anastomosis spikes 2 is less than or equal to the thickness sum of two blood vessel walls; if the positions of the anastomotic spikes 2 of the inner ring are staggered one by one and arranged at intervals, the length of one anastomotic spike 2 is larger than the thickness of the vessel wall at one side and smaller than the thickness of the vessel walls at two sides.

After anastomosis, the distance between two adjacent anastomosis spikes 2 is the anastomosis clamping span, in order to ensure the anastomosis effect and avoid blood from leaking out from the two clamping points after the blood vessel anastomosis, the distance between the anastomosis spikes 2 is 0.5-1mm, so as to ensure the anastomosis density and ensure the anastomosis effect.

The clamping firmness between the two anastomosis ring bodies 1 depends on the friction force of the fixing convex thorns 31 at the two sides clamped into the fixing grooves 32 at the opposite sides, so that the inconvenience brought to anastomosis is avoided due to the overhigh thickness h of the anastomosis ring bodies 1, the firmness of the fixing convex thorns 31 is maintained, and the outer diameter of the fixing convex thorns 31 is smaller than 1 mm. Furthermore, the length of the fixing spur 31 should match with the fixing groove 32 and be less than the height h of the anastomosis ring body 1, so as to avoid that the spur end of the fixing spur 31 protrudes from the fixing groove 32 after the fixing spur 31 pierces the fixing groove 32, which may cause other accidents.

Further, in order to facilitate the operation, a plurality of alignment mark lines are printed on the outer annular wall 12 of the anastomosis ring body 1 and the outer annular wall 12 in the height direction, and the alignment mark lines comprise bump mark lines and groove mark lines; the bump mark lines and the groove mark lines are uniformly distributed and respectively arranged corresponding to the fixed convex thorns 31 and the fixed grooves 32. When the anastomotic ring body 1 on both sides is rotated and aligned, the bump mark line and the groove mark line of the left-hand anastomotic ring body 1 correspond to the groove mark line and the bump mark line of the right-hand anastomotic ring body 1 one to one respectively, so that the fixed convex spines 31 of the left-hand anastomotic ring body 1 correspond to the fixed grooves 32 of the right-hand anastomotic ring body 1 one to one, and the fixed convex spines 31 of the right-hand anastomotic ring body 1 correspond to the fixed grooves 32 of the left-hand anastomotic ring body 1 one to one, so that the fixed convex spines 31 of all anastomotic ring bodies 1 can be clamped into the fixed grooves 32 of the opposite-side anastomotic ring body 1, so that the two-side anastomotic ring bodies 1 provide firm fastening force, and for convenience of operation, the bump mark line and the groove mark line are marked with different marks, for example, with different colors, different thicknesses, solid lines, dotted lines and the like.

Finally, the distance from the inner edge of the anastomosis ring body 1 to the outer edge of the anastomosis ring fixing ring of the anastomosis surface 11 of the anastomosis ring body 1 is less than 4 mm. After all, the anastomosis ring body 1 is clamped at the end parts of the stumps of the blood vessels at two sides after anastomosis and is sleeved outside the blood vessels, in order to reduce the bending degree of the blood vessels after anastomosis as much as possible and ensure that the blood vessels are straightened as much as possible, the height of the anastomosis ring body 1 is as small as possible and is smaller than 4mm, namely, the distance from the inner edge of the anastomosis ring body 1 to the outer edge of the anastomosis ring fixing ring is smaller than 4 mm.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A tissue tract anastomosis ring, comprising: the anastomosis ring comprises an anastomosis ring body (1), wherein 1-2 circles of anastomosis sharp thorns (2) are arranged on the inner circle of an anastomosis surface (11) of the anastomosis ring body (1), an anastomosis ring fixing ring is arranged on the outer circle of the anastomosis surface (11) of the anastomosis ring body (1), and a plurality of matched fixing convex thorns (31) and a plurality of fixing grooves (32) are uniformly distributed on the fixing ring at intervals; the inner ring of the anastomosis surface (11) and the anastomosis ring fixing ring are distributed in a concentric circle at the center of the anastomosis ring body (1); and a clamping groove (4) for fixing the anastomosis ring body (1) by using the forceps and clamps of the surgical forceps is arranged on the annular wall (12) at the outer side of the anastomosis ring body (1).

2. The tissue tract anastomosis ring of claim 1, wherein: the outer side annular wall (12) of the anastomosis ring body (1) is provided with a plurality of suture fixing structures which comprise fixing rings (51) or fixing through holes (52).

3. The tissue tract anastomosis ring of claim 1, wherein: a plurality of fixed protruding thorn (31) and a plurality of fixed recess (32) interval evenly distributed at the retainer plate make two coincide ring body (1) coincide face (11) relative and rotatory certain angle after, a plurality of fixed protruding thorn (31) can respectively with a plurality of fixed recess (32) one-to-one, a plurality of fixed protruding thorn (31) can be gone into in a plurality of fixed recess (32) and make two coincide ring body (1) coincide face (11) press close to and lock.

4. The tissue tract anastomosis ring of claim 1, wherein: the anastomosis ring comprises an anastomosis ring body (1) and is characterized by also comprising a suture fixing ring body (6) provided with a notch (62), wherein a plurality of suture fixing points are arranged on the suture fixing ring body (6), the inner cavity of the suture fixing ring body (6) is matched with the outer side annular wall (12) of the anastomosis ring body (1) in size and can be clamped on the outer wall of the anastomosis ring body (1) in an adaptive manner; the outer side wall of the suture fixing ring body (6) is provided with a handheld handle (63).

5. The tissue tract anastomosis ring of claim 4, wherein: the suture fixing point comprises a rotatable upright post which is arranged on the outer wall of the suture fixing ring body (6) in a circular cutting mode.

6. The tissue tract anastomosis ring of claim 5, wherein: the rotatable upright post comprises a socket (641) arranged on the outer wall of the suture fixing ring body (6), a rotary fixing rod (642), a socket part (643) arranged at the bottom of the rotary fixing rod (642), a handle (644) arranged at the upper part of the rotary fixing rod (642), and a suture perforation (645) arranged between the socket part (643) and the handle (644).

7. A tissue tract anastomosis ring according to claim 1, wherein: the outer diameter of the anastomotic spine (2) is less than 0.5mm, and the length is 0.5-1.5 mm.

8. The tissue tract anastomosis ring of claim 1, wherein: the outer diameter of the fixed convex thorns (31) is smaller than 1mm, and the length of the fixed convex thorns (31) is smaller than the height h of the anastomosis ring body (1).

9. The tissue tract anastomosis ring according to claim 1 or claim 3, wherein: a plurality of alignment mark lines are printed on the outer side annular wall (12) of the anastomosis ring body (1) and the outer side annular wall (12) in the height direction, and the alignment mark lines comprise bump mark lines and groove mark lines; the bump marking lines and the groove marking lines are uniformly distributed and are respectively arranged corresponding to the fixed convex thorns (31) and the fixed grooves (32).

10. The tissue tract anastomosis ring of claim 1, wherein: the distance from the inner edge of the anastomosis ring body (1) to the outer edge of the anastomosis ring fixing ring of the anastomosis surface (11) of the anastomosis ring body (1) is less than 4 mm.

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