CN213787602U

CN213787602U - Tissue anastomotic stoma protection component

Info

Publication number: CN213787602U
Application number: CN202022714234.6U
Authority: CN
Inventors: 单腾; 陈望东; 曹元阳
Original assignee: Suzhou Tianchen International Medical Technology Co Ltd
Current assignee: Touchstone International Medical Science Co Ltd; Suzhou Tianchen International Medical Technology Co Ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-07-27
Anticipated expiration: 2030-11-20

Abstract

The utility model provides a protection subassembly of anastomotic stoma in tissue for the protection of the inside anastomotic stoma position of tubulose tissue, the subassembly includes: the tubular sleeve is positioned inside the tubular tissue and circumferentially covers the surface of the position of the anastomotic stoma, and the shape of the sleeve is adapted to the internal shape of the tubular tissue; the fixing parts can stretch out and draw back along the circumferential direction of the tubular tissue, at least one fixing part has magnetism, and the two fixing parts correspond to each other in position and are fixed with each other through magnetic adsorption. The utility model discloses a fixed part's magnetic adsorption is fixed, realizes that the sleeve pipe is fixed in the circumference of organizing the department, but fixed part circumference is flexible and provide the sufficient flexible space of circumference for the tubulose tissue, guarantees near the normal blood supply of anastomotic stoma.

Description

Tissue anastomotic stoma protection component

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to tissue anastomotic stoma protects subassembly.

Background

After the intestinal tract is cut and sutured, the anastomotic orifice is generally required to be protected in order to avoid applying tension to the anastomotic orifice by excrement or avoiding infection of the anastomotic orifice caused by the excrement polluting the anastomotic orifice.

The existing anastomotic stoma protection mode is generally as follows: the tubular sleeve is arranged inside the intestinal tract, the inner surface of the intestinal tract is covered by the sleeve, the position corresponding to the anastomotic stoma is covered by the sleeve, and excrement is drained out of the human body through the sleeve, so that the anastomotic stoma can be effectively protected, secondary operation is not needed after the physiological tissue of the anastomotic stoma grows well, and the sleeve can be directly taken out. In order to better fix the sleeve in the desired position, it is necessary to provide a fixation band having a fixed diameter on the outside of the sleeve and configured to position around the intestine. However, the fixing band inevitably generates a certain pressure on the intestinal tract, which may hinder the normal peristalsis of the intestinal tract, and may cause poor blood supply near the anastomotic orifice due to the continuous pressure of the fixing band.

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, the utility model aims to provide a protection component is agreed with to tissue, it is fixed through the magnetic adsorption of fixed part, realizes that the sleeve pipe is fixed in the circumference of organizing the department, but fixed part circumference is flexible and provide the sufficient flexible space of circumference for the tubulose tissue.

The embodiment of the utility model provides a tissue anastomotic stoma protection component for the protection of the inside anastomotic stoma position of tubulose tissue, the subassembly includes:

the tubular sleeve is positioned inside the tubular tissue and circumferentially covers the surface of the position of the anastomotic stoma, and the shape of the sleeve is adapted to the internal shape of the tubular tissue;

the fixing parts can stretch out and draw back along the circumferential direction of the tubular tissue, at least one fixing part has magnetism, and the two fixing parts correspond to each other in position and are fixed with each other through magnetic adsorption.

In some embodiments, the fixation component surrounding the outer wall of the tubular tissue is provided with a connection structure where the fixation component can be connected to surround the outer wall of the tubular tissue or disconnected from the outer wall of the tubular tissue at the connection structure.

In some embodiments, the fixing component includes an elastic connector and a plurality of fixing blocks, the elastic connector is annular when being installed at the tubular tissue, the fixing blocks are distributed along the circumference of the tubular tissue, and at least part of the fixing blocks located on the outer wall of the tubular tissue and/or at least part of the fixing blocks located on the inner surface of the tubular tissue are magnetic fixing blocks.

In some embodiments, the elastic connecting member includes a bearing portion and an elastic connecting portion, the bearing portion bears the fixing block, and the elastic connecting portion is connected between two adjacent bearing portions.

In some embodiments, the elasticity of the load-bearing part is less than the elasticity of the elastic connection part.

In some embodiments, the width of the bearing part is adapted to the width of the fixing block, and the width of the bearing part is greater than the width of the elastic connecting part.

In some embodiments, the thickness of the load bearing portion is greater than the thickness of the resilient connecting portion.

In some embodiments, the bearing part is a ring-shaped structure surrounding the fixing block, and the width of the wall of the ring-shaped structure is larger than that of the elastic connecting part.

In some embodiments, the bearing part is an annular structure surrounding the fixed block, a circumferential fixed block mounting groove is at least partially formed in the side surface of the fixed block, and the bearing part is embedded in the fixed block mounting groove; or

The bearing part is around the annular structure of fixed block, the medial surface of annular structure at least part is provided with the fixed block mounting groove of circumference, the fixed block inlays to be located in the fixed block mounting groove.

In some embodiments, each side wall of the fixing block, which is attached to the inner wall of the annular structure of the bearing part, has a rounded structure.

In some embodiments, a resilient connector surrounding the inner surface of the sleeve is integrally formed with the sleeve.

In some embodiments, at least one of the anchor blocks is made of an absorbable material and/or at least one of the elastic connecting elements is made of an absorbable material.

In some embodiments, the sleeve includes a support portion surrounding an inner surface of the tubular tissue, and the fixation component is parallel to the support portion.

In some embodiments, the two fixation components are disposed upstream of the stoma location.

The utility model provides an identical mouthful protection component of tissue has following advantage:

the utility model protects the inner surface of the anastomotic stoma by the sleeve, leads the content of the tubular tissue to pass through without polluting the anastomotic stoma, and realizes the circumferential fixation of the sleeve at the tissue by the magnetic adsorption fixation of the two elastic fixing parts, thereby fixing the sleeve at the required position; the fixing component can stretch and retract along the circumferential direction of the tubular tissue, so that sufficient circumferential stretching space is provided for the tubular tissue, and normal blood supply near an anastomotic stoma is ensured when contents exist in the tissue or the tissue per se creeps. The tubular tissue applied by the tissue anastomotic stoma protecting component can be intestinal tissue and other tubular tissue in a human body, such as tubular tissue at other positions in the alimentary canal.

Drawings

Other features, objects and advantages of the invention will become more apparent from a reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.

Fig. 1 is a schematic view of a tissue anastomotic stoma protection assembly according to a first embodiment of the invention applied to intestinal tissue;

FIG. 2 is an exploded view of the tissue anastomosis protection assembly of the first embodiment of the present invention;

fig. 3 is an exploded view of a first fixing member according to a first embodiment of the present invention;

fig. 4 is a schematic view of the fitting of the sleeve and the second fixing member of the first embodiment of the present invention;

fig. 5 is a schematic view of the first elastic connector of the first embodiment of the present invention broken away;

fig. 6 is a front schematic view of a first fixing member according to a first embodiment of the present invention;

fig. 7 is a front schematic view of a second fixing member according to a first embodiment of the present invention;

fig. 8 is a side schematic view of a first fixing member according to a first embodiment of the present invention;

fig. 9 is a side schematic view of a second fixing element according to a first embodiment of the invention;

FIG. 10 is a schematic view of a tissue anastomosis protection assembly of a second embodiment of the present invention applied to intestinal tissue;

FIG. 11 is a schematic view of a third embodiment of the tissue anastomotic stoma protection assembly of the present invention applied to intestinal tissue;

fig. 12 is a schematic view of a tissue anastomotic stoma protecting assembly according to a fourth embodiment of the invention applied to intestinal tissue.

Reference numerals:

1 sleeve 41 first bearing part

11 support 42 first connection

2 first fixing block 43 connection projection

21 first fixed block fillet 44 connecting groove

22 first fixed block mounting groove 5 second elastic connecting piece

3 second fixing block 51 second bearing part

31 second fixed block round corner 52 second connecting part

32 second fixed block mounting groove 9 intestinal tract tissue

4 first elastic connecting piece

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.

The utility model provides a protection component for a tissue anastomotic stoma, which comprises a tubular sleeve and two elastic fixing components. The sleeve is positioned in the tubular tissue and circumferentially covers the surface of the anastomotic site, and the shape of the sleeve is adapted to the inner shape of the tubular tissue, i.e. the outer surface of the sleeve can substantially conform to the inner wall of the tubular tissue. The sleeve plays a role in protecting the inner surface of the anastomotic stoma, and does not pollute the anastomotic stoma in the process of guiding the contents of the tubular tissues to pass through. The two elastic fixing parts are arranged around the outer wall of the tubular tissue and around the inner surface of the tubular tissue respectively, the fixing parts can stretch out and draw back along the circumferential direction of the tubular tissue, at least one fixing part is magnetic, the two fixing parts correspond in position and are fixed with each other through magnetic adsorption, and therefore the sleeve is fixed at a required position through the magnetic adsorption between the two fixing parts.

Because the fixing component can stretch and contract along the circumferential direction of the tubular tissue and does not continuously press the tissue in the circumferential direction like the fixing band in the prior art, the normal peristalsis of the tubular tissue is not hindered, and sufficient space for stretching and contracting in the circumferential direction is provided for the tissue, and the normal blood supply near an anastomotic stoma is ensured.

The structure of the tissue anastomotic stoma protection component according to each embodiment of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that each embodiment is not intended to limit the scope of the present invention. In the respective embodiments, the intestinal tract tissue is exemplified. It is understood that in other embodiments, the tubular tissue is not limited to intestinal tissue, but may be other tubular tissue in human body, such as tubular tissue at other positions in digestive tract, etc., and all fall within the protection scope of the present invention.

As shown in fig. 1 to 9, it is a schematic structural diagram of the tissue anastomotic stoma protecting component of the first embodiment of the present invention applied to the intestinal tissue 9. In a first embodiment, the tissue stoma protection assembly includes: the tubular sleeve 1 is positioned inside the intestinal tissue 9 and circumferentially covers the surface of the anastomotic stoma position and is used for providing circumferential protection for the anastomotic stoma; and two elastic fixing parts which are respectively arranged around the outer wall of the intestinal tract tissue 9 and the inner surface of the intestinal tract tissue 9, wherein the fixing parts can stretch along the circumferential direction of the intestinal tract tissue 9, at least one fixing part has magnetism, and the two fixing parts are corresponding in position and are mutually fixed through magnetic adsorption, so that the sleeve 1 is kept at a required position. The two ends of the sleeve 1 are respectively positioned at the two sides of the anastomotic stoma to completely cover the anastomotic stoma, and the tissue anastomotic stoma protecting component is attached to the tissue wall of the protected tissue. And because the fixing component can stretch and contract along the circumferential direction of the intestinal tract tissue 9, when contents exist in the tissue or the tissue per se peristalsis, normal blood supply near the anastomotic stoma is ensured.

As shown in fig. 1-4, in this embodiment the fixation means comprises a first fixation means surrounding the outer wall of the enteral assembly 9 and a second fixation means surrounding the inner surface of the cannula 1. The first and second fixing parts are preferably disposed on an upstream side of the anastomotic orifice to fix the sleeve 1 so that the sleeve 1 does not move to a downstream side of the anastomotic orifice to lose the protection of the anastomotic orifice. The utility model discloses in, the upper reaches of coincide mouthful refer to and use the orientation that the intestinal content removed along the intestinal as the reference, and the intestinal content removes along intestinal from the one side of the low reaches of coinciding mouthful of an upper reaches side direction of coinciding mouthful. When the tissue anastomotic stoma protection component is applied to the lower position of the intestinal tract, the sleeve 1 guides excrement to be discharged along the intestinal tract and moves from the upstream side of the anastomotic stoma to the downstream side of the anastomotic stoma.

As shown in fig. 1 to 4, the first fixing member includes a first elastic connecting member 4 and a plurality of first fixing blocks 2, the first elastic connecting member 4 is annular when being installed at the intestinal tract tissue 9, and the first fixing blocks 2 are distributed along the circumferential direction of the intestinal tract tissue 9. The second fixed part comprises a second elastic connecting piece 5 and a plurality of second fixed blocks 3, the second elastic connecting piece 5 is installed in the position of the intestinal tract tissue 9 in an annular mode, and the second fixed blocks 3 are distributed along the circumferential direction of the intestinal tract tissue 9.

In this embodiment, at least one of the first fixing block 2 and the second fixing block 3 is a magnetic fixing block, and the first fixing block 2 and the corresponding second fixing block 3 can be magnetically attracted to each other, so that the first fixing block 2 is attached to the outer wall of the intestinal tissue 9, and the second fixing block 3 is attached to the inner surface of the cannula 1, thereby fixing the first fixing block 2 and the second fixing block 3 to maintain the position of the cannula 1 relative to the intestinal tissue 9. For example, the first fixing block 2 and the second fixing block 3 may be both magnetic materials having their own magnetism. Alternatively, the first fixing block 2 may be made of a magnetic material having magnetism, and the second fixing block 3 may be made of a material having no magnetism but attracted by a magnet, such as a magnetism-attracting metal, such as iron, nickel, cobalt, and alloys thereof. Alternatively, the first fixing block 2 may be made of a material that is not magnetic by itself but can be attracted by a magnet, and the second fixing block 3 may be made of a magnetic material that is magnetic by itself, such as a magnet or the like. In other alternative embodiments, it is also possible that a part of the first fixing blocks 2 use magnetic fixing members having magnetic property, a part of the first fixing blocks 2 use fixing members having no magnetic property but capable of being attracted by magnetic property, a second fixing block 3 opposite to the first fixing block 2 having no magnetic property is a magnetic fixing member, and a second fixing block 3 opposite to the first fixing block 2 having magnetic property is a fixing member or a magnetic fixing member having no magnetic property. Or, a part of the second fixing blocks 3 adopt magnetic fixing pieces with magnetism, a part of the second fixing blocks 3 adopt fixing pieces which do not have magnetism and can be attracted by magnetism, and the first fixing blocks 2 correspondingly have magnetism partially and do not have magnetism partially, or the first fixing blocks 2 have magnetism completely.

As shown in fig. 1 to 4, when the first elastic connecting element 4 is installed at the intestinal tract assembly 9, the first elastic connecting element 4 surrounds the outer wall of the intestinal tract tissue 9 to form a connecting ring structure, so as to form a circumferential fixing for the cannula 1 together with the first fixing block 2. The first elastic connector 4 comprises a first carrier part 41 and a first connecting part 42. The first bearing portions 41 correspond to the first fixed blocks 2 one to one, and bear the corresponding first fixed blocks 2. The first connecting portion 42 is connected between two adjacent first bearing portions 41. When the first elastic connecting piece 4 surrounds the outer wall of the intestinal tract assembly 9, the first elastic connecting piece 4 is circumferentially telescopic. Therefore, when the intestinal tract peristalsis, the first elastic connecting piece 4 can elastically deform along with the peristalsis of the intestinal tract, the limiting pressure cannot be applied to the intestinal tract, and the telescopic movement space is provided for the intestinal tract. For example, the first elastic connecting element 4 may be an elastic connecting element made of rubber, silicon rubber, or the like and having a certain elasticity. When the first connection portion 42 and the first bearing portion 41 have elasticity, the elasticity of the first bearing portion 41 may be less than that of the first connection portion 42. Thereby, the first bearing part 41 can better fix the first fixing block 2, and the first connecting part 42 can provide better circumferential telescopic capability.

As shown in fig. 5, the first elastic connecting element 4 may further be provided with a connecting structure, and the first elastic connecting element 4 may be connected at the connecting structure to surround the outer wall of the intestinal tissue 9, for example, to form a closed loop structure, or disconnected at the connecting structure to be separated from the outer wall of the intestinal tissue 9. I.e. the first elastic connecting element 4 can have two states: closed loop or open shape. The first elastic connecting element 4 can be used in two ways: one way is that the first elastic connecting element 4 is initially in the form of a closed loop, which is broken away from the intestinal tissue 9 at its connecting structure when it is desired to remove it from the intestinal tissue 9; alternatively, the first elastic connector 4 is initially in an unsealed configuration and is closed into a loop at the connection after being mounted on the outside of the intestinal tissue 9. The connection structure shown in fig. 8 includes a connection protrusion 43 and a connection groove 44 respectively disposed at both end portions, when the connection protrusion 43 is fitted in the connection groove 44, the first elastic connection member 4 is ring-shaped, and when the connection protrusion 43 is separated from the connection groove 44, the first elastic connection member 4 is strip-shaped or other unclosed shape. In other alternative embodiments, the connection structure may also take other forms, such as providing a connection ring and a connection hook at two ends respectively, hooking or separating the two to achieve two states of the first elastic connection element 4, or providing an adhesive structure at two ends, achieving two states of the first elastic connection element 4 through adhesion or adhesion separation, and so on. When the first fixing block 2 needs to be placed on the outer wall of the intestinal tissue 9, the first elastic connecting member 4 and the first fixing block 2 can be placed into the abdominal cavity together as a whole, at this time, the first elastic connecting member 4 is an unclosed ring or a strip-shaped structure having two end portions, and after the first elastic connecting member 4 is placed around the outer wall of the intestinal tissue 9, the two end portions of the first elastic connecting member 4 are connected with each other to form a closed ring shape having a joint. The connection at the interface can be realized by clamping, additional fixing block connection and the like.

As shown in fig. 6, in this embodiment, the width w1 of the first bearing part 41 is greater than the width w2 of the first connecting part 42. From this, first bearing part 41 can bear the first fixed block 2 of width broad to realize the better fixed action of first fixed block 2 to sleeve pipe 1, and the width of first connecting portion 42 is less, can improve the elastic deformation ability of first connecting portion 42, to the peristaltic influence greatly reduced of intestinal tissue 9. Further, the width w5 of the annular wall of the first bearing part 41 may be greater than the width w2 of the first connection part 42, so as to improve the connection stability of the first bearing part 41 and the first fixing block 2. In this embodiment, as shown in fig. 8, the thickness t1 of the first bearing part 41 and the thickness t2 of the first connecting part 42 are substantially equal. In another alternative embodiment, the thickness t1 of the first bearing part 41 may be greater than the thickness t2 of the first connecting part 42. Therefore, the first bearing part 41 can bear the first fixing block 2 with a thicker thickness, so that a better fixing effect of the first fixing block 2 on the sleeve 1 is realized. In addition, the thickness of the first connecting portion 42 is small, and the elastic deformability of the first connecting portion 42 can be further improved. The thickness direction here corresponds to the radial direction of the first elastic connecting element 4 after forming the annular structure (corresponding to the radial direction of the sleeve 1).

As shown in fig. 3, the first bearing portion 41 and the first connecting portion 42 are integrally formed, and the first bearing portion 41 is a hollow annular structure surrounding the first fixing block 2, that is, the first bearing portion 41 is provided with a mounting hole, and the first fixing block 2 is embedded in the mounting hole. In order to more conveniently mount and remove the first fixing block 2 to and from the first elastic connection member 4, each side wall of the first fixing block 2, which is attached to the inner wall of the mounting hole, has a rounded corner 21 structure. In other alternative embodiments, the first bearing portion 41 may have other shapes, and may be formed separately from and fixedly connected to the first connecting portion 42. As shown in fig. 3, a circumferential first fixing block mounting groove 22 is at least partially formed on a side surface of the first fixing block 2, and the annular first bearing portion 41 is fitted into the first fixing block mounting groove 22. In another alternative embodiment, a circumferential first fixing block mounting groove may be at least partially formed inside an edge of the hollow annular structure of the first bearing portion 41, and a side surface of the first fixing block 2 is embedded in the first fixing block mounting groove, so that the first fixing block 2 and the first bearing portion 41 are stably connected.

In this embodiment, as shown in fig. 2 and 4, the fixing member further comprises a second elastic connecting member 5 for carrying the second fixing block 3, and when the second elastic connecting member 5 is installed at the intestinal tract assembly 9, the second elastic connecting member 5 surrounds the inner surface of the sleeve 1 to form a connecting ring structure, so as to form a circumferential fixing to the sleeve 1 together with the fixing block 2. The second elastic connecting piece 5 corresponds to the first elastic connecting piece 4 in position and forms a fixing ring for the sleeve 1. As shown in fig. 4, the second elastic connecting member 5 includes a second bearing portion 51 and a second connecting portion 52. The second bearing portions 51 correspond to the second fixed blocks 3 one by one, and bear the corresponding second fixed blocks 3. The second connecting portion 52 is connected between two adjacent second bearing portions 51. When the second elastic connecting piece 5 is arranged at the intestinal tract assembly 9, the second elastic connecting piece 5 is circumferentially telescopic. Therefore, when the intestinal tract peristalsis, the second elastic connecting piece 5 can elastically deform along with the peristalsis of the intestinal tract, the limiting pressure cannot be applied to the intestinal tract, and the telescopic movement space is provided for the intestinal tract. For example, the second elastic connecting member 5 may be an elastic connecting member made of rubber, silicon rubber, or the like and having a certain elasticity. The second elastic connector 5 may be a closed ring structure or a connector with a connector, and when installed at the intestinal tract assembly 9, the connector is connected end to form a connecting ring. When both the second connection portion 52 and the second bearing portion 51 have elasticity, the elasticity of the second bearing portion 51 may be less than that of the second connection portion 52. Thereby, the second bearing part 51 can better fix the second fixing block 3, and the second connecting part 52 can provide better circumferential telescopic capability.

As shown in fig. 7, in this embodiment, the width w3 of the second bearing part 51 is greater than the width w4 of the second connecting part 52. From this, second bearing part 51 can bear the second fixed block 3 of width broad to realize the better fixed action of second fixed block 3 to sleeve pipe 1, and the width of second connecting portion 52 is less, can improve the elastic deformation ability of second connecting portion 52, to the peristaltic influence greatly reduced of intestinal tissue 9. Further, the width w6 of the annular wall of the second bearing part 51 may be greater than the width w4 of the second connecting part 42, so as to improve the stability of the connection between the second bearing part 51 and the second fixing block 3. In this embodiment, as shown in fig. 9, the thickness t3 of the second carrier part 51 and the thickness t4 of the second connecting part 52 are substantially equal. In another alternative embodiment, the thickness t3 of the second carrier part 51 may be greater than the thickness t4 of the second connecting part 52. Thereby, the second bearing part 51 can bear the second fixing block 3 with a thicker thickness, so as to realize a better fixing effect of the second fixing block 3 on the sleeve 1. In addition, the thickness of the second connection portion 52 is small, and the elastic deformability of the second connection portion 52 can be further improved.

As shown in fig. 4, the second bearing portion 51 and the second connecting portion 52 are integrally formed, and the second bearing portion 51 is a hollow ring structure surrounding the second fixing block 3, that is, the second bearing portion 51 is provided with a mounting hole, and the second fixing block 3 is embedded in the mounting hole. In order to more conveniently mount and remove the second fixing block 3 to and from the second elastic connecting member 5, each side wall of the second fixing block 3, which is attached to the inner wall of the mounting hole, has a rounded corner 31 structure. In other alternative embodiments, the second bearing portion 51 may have other shapes, and may be formed separately from and fixedly connected to the second connecting portion 52. As shown in fig. 4, a circumferential second fixed block mounting groove 32 is at least partially formed on a side surface of the second fixed block 3, and the annular second bearing portion 51 is inserted into the second fixed block mounting groove 32. In another alternative embodiment, a second fixed block circumferential second fixed block mounting groove may be at least partially disposed inside an edge of the hollow annular structure of the second bearing portion 51, and a side surface of the second fixed block 3 is embedded in the second fixed block mounting groove, so that the second fixed block 3 and the second bearing portion 51 are stably connected.

In this embodiment, the second elastic connector 5 may also be formed integrally with the sleeve 1. In an alternative embodiment, the second elastic connecting element 5 may also be formed separately from the sleeve 1 and fixed thereto by gluing or the like. In another alternative embodiment, the second elastic connecting element 5 may also be not fixed in the cannula 1 in advance, but rather may be placed into the cannula 1 by the surgeon at the time of the operation.

In this embodiment, the sleeve 1 may be a thin-walled flexible film sleeve, such as a rubber film sleeve, a silicone film sleeve, etc., but the present invention is not limited thereto. In other alternative embodiments, the sleeve 1 may be made of other materials, and all of them fall within the protection scope of the present invention.

As shown in fig. 1 and 2, a support portion 11 is provided at an end of the sleeve 1 upstream of the anastomotic orifice, and the support portion 11 is retractable in a radial direction of the sleeve 1. When the supporting part 11 is contracted in the radial direction, the sleeve 1 can be integrally placed in the intestinal tissue 9 or taken out from the intestinal tissue 9, after the sleeve 1 is placed in place, the supporting part 11 is expanded in the radial direction to form a support for the sleeve 1, so that the sleeve 1 is better attached to the intestinal wall and sealed, and the content is prevented from entering the anastomotic opening. The supporting portion 11 can be an annular elastic air bag capable of inflating and deflating, the outer wall of the air bag has elasticity, for example, the outer wall can be made of elastic rubber, silica gel, TPU and the like, or made of thin PC materials, the air bag is attached to a tissue wall after being inflated, when contents pass through the air bag, the circumferential length can be increased, and the air bag can be well attached to an intestinal tract. The support portion 11 may be formed of another radially-retractable spring or a radially-movable slider structure, and the outer diameter of the support portion 11 may be increased or decreased. The fixing component is arranged between the anastomotic stoma and the supporting part 11, and can better keep the sleeve 1 at the anastomotic stoma position through the matching with the supporting part 11. Preferably, the first and second

elastic connectors

4 and 5 may be disposed in parallel to the support portion 11.

As shown in fig. 1 and 2, the fixing member includes a plurality of the first fixing blocks 2 and a plurality of the second fixing blocks 3, and the first fixing blocks 2 and the second fixing blocks 3 are sequentially arranged along the circumferential direction of the intestinal tissue 9, respectively, so as to uniformly and stably fix the cannula 1. In this embodiment, a plurality of first fixed blocks 2 are provided with a space therebetween, and a plurality of second fixed blocks 3 are provided with a space therebetween. The quantity of first fixed block 2 and second fixed block 3 also can select the setting as required to can form the relation of one-to-one, a relation of a pair of many, perhaps many-to-one relation etc. between first fixed block 2 and the second fixed block 3 all belong to within the protection scope of the utility model. In other alternative embodiments, the first fixing block 2 may also be provided as 1 and/or the second fixing block 3 may also be provided as 1.

As shown in fig. 2, the surface of the first fixing block 2 opposite to the intestinal tissue 9 is an arc surface, and the shape of the arc surface substantially conforms to the outer wall of the intestinal tissue 9, so as to achieve better fitting between the first fixing block 2 and the outer wall of the intestinal tissue 9. The surface that the second fixed block 3 with the protective sheath 1 is relative is the arc surface, and the shape on this arc surface basically suits with the internal surface of protective sheath 1 to realize the better laminating of second fixed block 3 and the internal surface of protective sheath 1.

Further, in another alternative embodiment, the surface of the first fixed block 2 and/or the second fixed block 3 may also be wavy. Specifically, the surface of the first fixing block 2 facing the intestinal tract tissue 9 is a wavy surface having a height along the length direction (e.g., S direction in fig. 4) of the intestinal tract tissue 9, so that the surface can better adapt to the outer wall of the intestinal tract tissue 9, the contact area between the first fixing block 2 and the intestinal tract tissue 9 is increased, and the degree of matching between the first fixing block 2 and the outer wall of the intestinal tract tissue 9 is improved. The surface of the second fixing block 3 facing the protective sheath 1 is a wavy surface with a height along the length direction (e.g. S direction in fig. 1) of the intestinal tissue 9, so that the contact area between the second fixing block 3 and the protective sheath 1 is increased, and the degree of matching between the second fixing block 3 and the inner wall of the protective sheath 1 can be improved.

In this embodiment, at least a part of the first fixing block 2 may be made of a bio-absorbable material, for example, a bio-absorbable iron-based material, and the second fixing block 3 may be made of a magnetic material, and is adsorbed to the first fixing block 2. In addition, the first fixing block 2 may also be made of a magnetized bioabsorbable iron-based material, and the second fixing block 3 may be made of a magnetic material or a magnetically attractable material. The tissue anastomotic stoma protecting component is arranged in the intestinal tract, and the first fixing block 2 can be gradually absorbed by the human body without being dismantled subsequently, so that the step of removing the first fixing block 2 after the operation is saved. The second fixing block 3 can be fixedly connected with the sleeve 1, after the postoperative anastomotic stoma is long, the integral structure of the sleeve 1 and the second fixing block 3 only needs to be taken out together, and the operation is simpler and more convenient.

In other alternative embodiments, at least a portion of the second fixation block 3 may also be made of a bioabsorbable material, such as a bioabsorbable iron-based material, or a magnetized bioabsorbable iron-based material, etc., thereby eliminating the need for post-operative removal of the second fixation block 3.

Further, the first elastic connecting element 4 may also be made of a bioabsorbable material, such as a bioabsorbable medical film, partially or entirely, and has flexibility or elasticity while ensuring a certain strength. Thereby eliminating the need for post-operative removal of the first elastic connector 4. The second elastic connecting element 5 can also be made of a bioabsorbable material, for example, a bioabsorbable medical film, and has flexibility or elasticity while ensuring certain strength. Thereby eliminating the need for post-operative removal of the second elastic connector 5.

In other embodiments of the present invention, one or more of the first fixing block 2, the second fixing block 3, the first elastic connecting element 4 and the second elastic connecting element 5 may be made of a bio-absorbable material, and may be naturally absorbed after a period of time in the human body without manual removal after the operation. In the case where the first fixing block 2 is a magnetic fixing block, the first fixing block 2 may also be a bio-absorbable magnetic fixing block. In the case where the second fixing block 3 is a magnetic fixing block, the second fixing block 3 may also be a bio-absorbable magnetic fixing block.

As shown in fig. 10, a perspective view of the tissue anastomotic stoma protecting assembly according to the second embodiment of the present invention is installed in the intestinal tract. In this embodiment, the tissue stoma protection assembly is used for stoma protection in the upper intestinal tract. A set of first and second fixation components is disposed upstream of the stoma, and another set of first and second fixation components is disposed on a downstream side of the stoma. The length of required sleeve pipe 1 can be saved greatly to this kind of structure on the one hand to more make things convenient for placing of sleeve pipe 1 and the removal of sleeve pipe 1 after the anastomotic stoma resumes among the operation process, on the other hand can fix sleeve pipe 1 in required position better, guarantees the stability in the use.

As shown in fig. 11, a schematic view of the tissue anastomotic stoma protecting component according to the third embodiment of the present invention is disposed in the intestinal tract. In this embodiment, the first fixing block 2 is embedded inside the first elastic connecting member 4, and the first fixing block 2 is inseparable from the first elastic connecting member 4. The first elastic connecting piece 4 corresponds to the first bearing part embedded in the first fixing block 2 and has the same width as the first connecting part, and the whole first elastic connecting piece 4 forms a magnetic ring with uniform width when being installed at the position of an anastomotic stoma. The first elastic connecting piece 4 can be an elastic ring made of rubber, silica gel and other materials. Therefore, the first elastic connecting piece 4 can integrally form a belt-shaped structure, and is more convenient to store.

Similarly, the second elastic connecting element 5 may also be configured like the first elastic connecting element 4, the second bearing portion of the second elastic connecting element 5 corresponding to the second fixed block 3 is embedded with the same width as the second connecting portion, and the second fixed block 3 may also be embedded in the second elastic connecting element 5 in a similar manner to form an inseparable integrated magnetic ring of the second fixed block 3. Therefore, the second elastic connecting piece 5 can form a belt-shaped structure, and is more convenient to store.

As shown in fig. 12, a schematic view of the tissue anastomotic stoma protecting component according to the fourth embodiment of the present invention is disposed in the intestinal tract. In this embodiment, the first fixing block 2 is embedded inside the first elastic connecting member 4, and the first fixing block 2 is inseparable from the first elastic connecting member 4. The width of the first bearing part 41 embedded in the first elastic connecting piece 4 corresponding to the first fixing block 2 is adapted to the width of the first fixing block 2, the width of the first bearing part 41 is greater than the width of the first connecting part 42, and the whole first elastic connecting piece 4 forms a magnetic ring with uniform width when being installed at the position of an anastomotic opening. The first elastic connecting piece 4 can be an elastic ring made of rubber, silica gel and other materials. Therefore, the first elastic connecting piece 4 can integrally form a belt-shaped structure, and is more convenient to store.

Similarly, the second elastic connecting element 5 may also be configured like the first elastic connecting element 4, the second elastic connecting element 5 is embedded in the second bearing portion with a width larger than that of the second connecting portion corresponding to the second fixing block 3, and the second fixing block 3 may also be embedded in the second elastic connecting element 5 in a similar manner to form an inseparable integrated magnetic ring of the second fixing block 3. Therefore, the second elastic connecting piece 5 can form a belt-shaped structure, and is more convenient to store.

the utility model protects the inner surface of the anastomotic stoma by the sleeve, leads the content of the tubular tissue to pass through without polluting the anastomotic stoma, and realizes the circumferential fixation of the sleeve at the tissue by the magnetic adsorption fixation of the two elastic fixing parts, thereby fixing the sleeve at the required position; the fixing component can stretch out and draw back along the circumference of the tubular tissue, so that a sufficient circumferential stretching space is provided for the tissue, and when contents exist in the tissue or the tissue per se creeps, normal blood supply near an anastomotic stoma is ensured. The tubular tissue applied by the tissue anastomotic stoma protecting component can be intestinal tissue and other tubular tissue in a human body, such as tubular tissue at other positions in the alimentary canal.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A tissue stoma protection assembly for protection of a stoma site within tubular tissue, the assembly comprising:

2. The tissue stoma protection assembly according to claim 1, wherein a fixation component surrounding the outer wall of the tubular tissue is provided with a connection structure, the fixation component being connectable around the outer wall of the tubular tissue at the connection structure or disconnectable from the outer wall of the tubular tissue at the connection structure.

3. The tissue anastomotic protection assembly according to claim 1, wherein the fixation member comprises an elastic connector and a plurality of fixation blocks, the elastic connector is annular when mounted at the tubular tissue, the fixation blocks are distributed along the circumference of the tubular tissue, and at least part of the fixation blocks located at the outer wall of the tubular tissue and/or at least part of the fixation blocks located at the inner surface of the tubular tissue are magnetic fixation blocks.

4. The tissue anastomotic stoma protection assembly according to claim 3, wherein the elastic connecting piece comprises a bearing portion bearing the fixation block and an elastic connecting portion connected between two adjacent bearing portions.

5. The tissue stoma protection assembly according to claim 4, wherein the bearing portion has an elasticity less than an elasticity of the elastic connection portion.

6. The tissue anastomotic stoma protection assembly according to claim 4, wherein the width of the bearing portion is adapted to the width of the fixation block, and the width of the bearing portion is greater than the width of the elastic connection portion.

7. The tissue stoma protection assembly according to claim 4, wherein a thickness of the carrier portion is greater than a thickness of the resilient connection portion.

8. The tissue stoma protection assembly according to claim 4, wherein the bearing portion is a ring structure surrounding the fixation block, a wall of the ring structure having a width greater than a width of the elastic connection portion.

9. The tissue anastomotic stoma protection assembly according to claim 4, wherein the bearing part is an annular structure surrounding the fixing block, a circumferential fixing block mounting groove is at least partially formed in a side surface of the fixing block, and the bearing part is embedded in the fixing block mounting groove; or

10. The tissue anastomotic stoma protection assembly according to claim 9, wherein each side wall of the fixation block that is attached to the inner wall of the ring structure of the load bearing part has a rounded corner structure.

11. The tissue stoma protection assembly according to claim 3, wherein a resilient connector surrounding an inner surface of the sleeve is integrally formed with the sleeve.

12. The tissue anastomotic protection assembly according to claim 3, wherein at least one of the fixation blocks is of a resorbable material and/or at least one of the elastic attachment elements is of a resorbable material.

13. The tissue stoma protection assembly according to claim 1, wherein the sleeve includes a support portion surrounding an inner surface of the tubular tissue, and the fixation component is parallel to the support portion.

14. The tissue stoma protection assembly according to claim 1, wherein the two fixation components are disposed upstream of the stoma location.