CN114515177B - Anastomotic stoma protection device - Google Patents
Anastomotic stoma protection device Download PDFInfo
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- CN114515177B CN114515177B CN202011311153.XA CN202011311153A CN114515177B CN 114515177 B CN114515177 B CN 114515177B CN 202011311153 A CN202011311153 A CN 202011311153A CN 114515177 B CN114515177 B CN 114515177B
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- 230000001681 protective effect Effects 0.000 claims abstract description 95
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- 238000000429 assembly Methods 0.000 claims description 5
- 230000003872 anastomosis Effects 0.000 claims 2
- 230000036770 blood supply Effects 0.000 abstract description 10
- 230000000968 intestinal effect Effects 0.000 description 61
- 210000001035 gastrointestinal tract Anatomy 0.000 description 32
- 230000008855 peristalsis Effects 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 210000000936 intestine Anatomy 0.000 description 9
- 230000005389 magnetism Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000002572 peristaltic effect Effects 0.000 description 6
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- 210000003736 gastrointestinal content Anatomy 0.000 description 3
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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- 229910017052 cobalt Inorganic materials 0.000 description 1
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- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physiology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention provides an anastomotic stoma protection device, which comprises: the protective sleeve is positioned in the tubular tissue at a position corresponding to the anastomotic stoma; the fixing assembly comprises at least one first fixing piece and at least one second fixing piece, the first fixing piece is arranged on the outer wall of the tubular tissue, the second fixing piece is arranged on the inner surface of the protective sleeve at a position corresponding to the first fixing piece, and the first fixing piece and the second fixing piece are relatively fixed through magnetic adsorption. The invention protects the inner surface of the anastomotic stoma through the protective sleeve, only the magnetic adsorption position between the first fixing piece and the second fixing piece is relatively fixed, the circumferential length can be elastically stretched, sufficient circumferential stretching space is provided for tissues, and when contents exist in the tissues or the tissues themselves creep, normal blood supply near the anastomotic stoma is ensured.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an anastomotic stoma protection device.
Background
After the intestinal tract performs the incising and suturing operation, the anastomotic stoma is generally required to be protected in order to avoid applying tension to the anastomotic stoma by the excrement or to avoid infection of the anastomotic stoma caused by contamination of the anastomotic stoma by the excrement.
The existing anastomotic stoma protection mode is generally as follows: the inside tubular sleeve that sets up at the intestinal, the sleeve pipe covers the intestinal internal surface and corresponds to the position of anastomotic stoma, and through the sleeve pipe with excreta drainage to the human body outside, not only can effectively protect the anastomotic stoma, can also after the anastomotic stoma physiological tissue grows, need not to carry out the secondary operation, directly take out the sleeve pipe can. In order to better secure the cannula in the desired position, a fixation band having a fixed diameter and configured to be positioned around the intestine needs to be provided on the outside of the cannula. However, the band inevitably forms a certain pressure on the intestinal tract, which may form an obstacle to the normal peristalsis of the intestinal tract, and may cause problems such as poor blood supply near the anastomotic orifice due to the continuous pressure of the band.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an anastomotic stoma protection device which provides a circumferential expansion space for a tubular component and ensures normal blood supply near an anastomotic stoma.
The embodiment of the invention provides an anastomotic stoma protection device, which comprises:
The protective sleeve is positioned in the tubular tissue at a position corresponding to the anastomotic stoma;
The fixing assembly comprises at least one first fixing piece and at least one second fixing piece, wherein the first fixing piece is arranged on the outer wall of the tubular tissue, the second fixing piece is arranged at the position, corresponding to the first fixing piece, of the inner surface of the protective sleeve, and the first fixing piece and the second fixing piece are relatively fixed through magnetic adsorption.
In some embodiments, the fixation assembly includes a plurality of the first fixation members and a plurality of the second fixation members, each of the first fixation members and the second fixation members being sequentially aligned along a circumference of the tubular tissue.
In some embodiments, the first fixing elements and the second fixing elements are magnetic elements, or at least one is a magnetic element, and the other is a non-magnetic element.
In some embodiments, a plurality of the first fixing members are provided with a space therebetween, and a plurality of the second fixing members are provided with a space therebetween.
In some embodiments, the fixation assembly is disposed on an upstream side of the stoma.
In some embodiments, a support portion is provided at an end of the protective sheath upstream of the stoma, the support portion being stretchable in a radial direction of the protective sheath, and the fixing component is provided between the stoma and the support portion.
In some embodiments, two of the fixation assemblies are included, the two fixation assemblies being disposed on an upstream side and a downstream side of the stoma, respectively.
In some embodiments, the fixation assembly further comprises at least one connector comprising a first connector carrying the first fixation member, the first connector encircling an outer wall of the tubular tissue.
In some embodiments, the first connector may be connected at the connection structure to encircle the outer wall of the tubular tissue or disconnected at the connection structure to disengage from the outer wall of the tubular tissue.
In some embodiments, the securing assembly further comprises at least one connector comprising a second connector carrying the second securing member, the second connector being located on an inner surface of the protective sheath.
In some embodiments, the second connector is integrally formed with the protective sheath.
In some embodiments, the connector is retractable along a circumference of the tubular tissue when the connector is mounted at the tubular tissue.
In some embodiments, the connector is of a bioabsorbable material.
In some embodiments, the fixation assembly further comprises at least one connector comprising a first connector carrying the first fixation member surrounding an outer wall of the tubular tissue and/or a second connector carrying the second fixation member, the second connector being located on an inner surface of the protective sheath corresponding to the first connector;
the circumference of the first fixing piece is at least partially provided with a fixing piece mounting groove, the inner circumference of the first connecting piece is embedded with the fixing piece mounting groove, or the inner circumference of the first connecting piece is at least partially provided with a fixing piece mounting groove, and the first fixing piece is embedded with the fixing piece mounting groove;
the circumference of second mounting is equipped with the mounting groove at least partially, the inner periphery of second connecting piece with the mounting groove gomphosis of mounting, perhaps the inner periphery of second connecting piece is equipped with the mounting groove at least partially, the second mounting with the mounting groove gomphosis of mounting.
In some embodiments, the inner surface of the protective sleeve is provided with mounting grooves corresponding to the second fixing pieces one by one, and the second fixing pieces are embedded in the corresponding mounting grooves.
In some embodiments, the surface of the first anchor opposite the tubular tissue is an arcuate surface and the surface of the second anchor opposite the protective sheath is an arcuate surface.
In some embodiments, at least one of the first anchors is a bioabsorbable magnetic anchor and/or at least one of the second anchors is a bioabsorbable material.
In some embodiments, at least one of the first fasteners is a magnetic fastener and/or at least one of the second fasteners is a magnetic fastener.
In some embodiments, at least one of the first fasteners is a bioabsorbable magnetic fastener and/or at least one of the second fasteners is a bioabsorbable magnetic fastener.
In some embodiments, the fixing assembly comprises a plurality of first fixing pieces, the plurality of first fixing pieces are sequentially connected end to form a ring shape, and the connecting positions of two adjacent first fixing pieces form a telescopic connecting structure; and/or
The fixing assembly comprises a plurality of second fixing pieces, the second fixing pieces are sequentially connected end to form a ring, and the connecting positions of two adjacent second fixing pieces form a telescopic connecting structure.
The anastomotic stoma protection device provided by the invention has the following advantages:
The inner surface of the anastomotic stoma is protected by the protective sleeve, the anastomotic stoma is not polluted in the process of guiding the tubular tissue content to pass, and the protective sleeve is fixed at a required position by magnetic adsorption between the first fixing piece and the second fixing piece; in the device, only the magnetic adsorption position between the first fixing piece and the second fixing piece is relatively fixed, the circumferential length can be elastically stretched, sufficient circumferential stretching space is provided for tissues, and when contents are contained in the tissues or the tissues themselves creep, normal blood supply near an anastomotic orifice is ensured. The tubular tissue applied by the anastomotic stoma protection device can be intestinal tracts or other tubular tissues in human bodies, such as tubular tissues at other positions in the digestive tract, and the like.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings.
Fig. 1 is a schematic structural view of a stoma protection apparatus according to a first embodiment of the present invention disposed in an intestinal tract;
FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;
fig. 3 is a perspective view of the anastomotic stoma protection device according to the first embodiment of the present invention disposed in the intestinal tract;
FIG. 4 is an exploded view of FIG. 3;
FIG. 5 is a schematic view showing the mating of the first fixing member and the first connecting member according to the first embodiment of the present invention;
fig. 6 is a schematic diagram showing the cooperation of the protective sleeve and the second fixing member according to the first embodiment of the present invention;
FIG. 7 is a side view of a securing assembly according to a first embodiment of the present invention;
FIG. 8 is a schematic illustration of the disconnection of the first connector of the first embodiment of the present invention;
FIG. 9 is a schematic view of a first embodiment of the present invention employing a flexible first connector;
fig. 10 is a perspective view of a stoma protecting apparatus according to a second embodiment of the invention disposed in an intestinal tract;
fig. 11 is a perspective view of a stoma protecting apparatus according to a third embodiment of the present invention disposed in an intestinal tract;
fig. 12 is a perspective view of a stoma protecting apparatus according to a fourth embodiment of the invention disposed in an intestinal tract;
fig. 13 is a schematic view showing a configuration in which a recess is provided in an inner surface of a protective sheath according to a fourth embodiment of the present invention;
FIG. 14 is a schematic view of a fourth embodiment of the invention in which the inner surface of the protective sheath is provided with annular mountings;
fig. 15 is a schematic view of a stoma protection apparatus according to a fifth embodiment of the invention disposed in an intestinal tract;
FIG. 16 is a schematic view of a sixth embodiment of the present invention employing first fasteners in end-to-end relation;
Fig. 17 is a perspective view of a stoma protecting apparatus according to a seventh embodiment of the invention disposed in an intestinal tract;
Fig. 18 is a perspective view of an anastomotic stoma protecting apparatus according to an eighth embodiment of the present invention disposed in the intestinal tract.
Reference numerals:
1. Protective sleeve 32 second fastener mounting groove
11. First connector of support part 4
12. First bearing portion of pit 41
13. First connecting portion of annular mounting member 42
2. First fixing piece 43 connecting protrusion
21. First fastener fillet 44 attachment recess
23. First fixing piece mounting groove 5 second connecting piece
24. Second bearing part of telescopic matching structure 51
3. Second connecting portion of second fixing piece 52
31. Second fixing piece fillet 9 intestinal tissue
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many 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 the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted.
The invention provides an anastomotic stoma protection device which comprises a protective sleeve and a fixing component. The protective sleeve is positioned in the tubular tissue at a position corresponding to the anastomotic stoma, the protective sleeve plays a role in protecting the inner surface of the anastomotic stoma, and the anastomotic stoma is not polluted in the process of guiding the tubular tissue contents to pass through. The fixing assembly comprises at least one first fixing piece and at least one second fixing piece, the first fixing piece is arranged on the outer wall of the tubular tissue, the second fixing piece is arranged at the position, corresponding to the first fixing piece, of the inner surface of the protective sleeve, and the first fixing piece and the second fixing piece are relatively fixed through magnetic absorption, so that the protective sleeve is fixed at a required position through magnetic absorption between the first fixing piece and the second fixing piece.
The fixing band in the prior art is fixed in length in the circumferential direction, does not stretch elastically and cannot adapt to the natural shrinkage of tissues. The device provided by the invention has the advantages that only the magnetic adsorption position between the first fixing piece and the second fixing piece is relatively fixed, the circumferential length can be elastically stretched, sufficient circumferential stretching space is provided for tissues, and when contents exist in the tissues or the tissues themselves creep, normal blood supply near the anastomotic orifice is ensured.
The following describes the structure of the anastomotic stoma protection device according to various embodiments of the present invention in detail with reference to the accompanying drawings, and it is to be understood that the various embodiments are not limiting of the scope of the present invention. In various embodiments, intestinal tissue is described as an example. It is understood that in other embodiments, the tubular tissue is not limited to intestinal tissue, but may be other tubular tissue in the human body, such as tubular tissue at other locations in the digestive tract, and the like, and fall within the scope of the present invention.
As shown in fig. 1 to 6, a structural schematic diagram of the anastomotic stoma protection device according to the first embodiment of the present invention applied to intestinal tissue 9 is shown. As shown in fig. 1 to 4, the device comprises a protective sleeve 1 and a fixing component, wherein the protective sleeve 1 is positioned in the intestinal tissue 9 at a position corresponding to the anastomotic stoma, namely, two ends of the protective sleeve 1 are respectively positioned at two sides of the anastomotic stoma, the anastomotic stoma is covered on the whole surface, and the anastomotic stoma protecting device is attached to the tissue wall of the protected tissue. The protective sleeve 1 plays a role in protecting the inner surface of the anastomotic stoma, and the anastomotic stoma is not polluted in the process of guiding intestinal contents to pass through.
As shown in fig. 3 and 4, the fixing assembly includes at least one first fixing member 2 and at least one second fixing member 3, the first fixing member 2 is disposed on the outer wall of the intestinal tissue 9, the second fixing member 3 is disposed on the inner surface of the protective sleeve 1 at a position corresponding to the first fixing member 2, and the first fixing member 2 and the second fixing member 3 are relatively fixed by magnetic adsorption. Specifically, at least one of the first fixing member 2 and the second fixing member 3 is a magnetic fixing member, and the first fixing member 2 and the corresponding second fixing member 3 may magnetically attract each other, so that the first fixing member 2 is attached to the outer wall of the intestinal tissue 9, and the second fixing member 3 is attached to the inner surface of the protective sheath 1, so that the position of the protective sheath 1 relative to the intestinal tissue 9 is maintained by fixing the first fixing member 2 and the second fixing member 3. For example, the first fixing member 2 and the second fixing member 3 may each be a magnetic material having magnetism. Alternatively, the first fixing member 2 may be made of a magnetic material having magnetism, and the second fixing member 3 may be made of a material which is not magnetic but attracted to a magnet, such as a magnetophilic metal, e.g., iron, nickel, cobalt, or an alloy thereof. Alternatively, the first fixing member 2 may be made of a material that is not magnetic but attracted to a magnet, and the second fixing member 3 may be made of a magnetic material that is magnetic, such as a magnet. In other alternative embodiments, a part of the first fixing members 2 may be magnetic fixing members having magnetism, and a part of the first fixing members 2 may be fixing members having no magnetism but being magnetically attracted, and the second fixing members 3 opposite to the first fixing members 2 having no magnetism may be magnetic fixing members, and the second fixing members 3 opposite to the first fixing members 2 having magnetism may be fixing members or magnetic fixing members having no magnetism. Or a part of the second fixing members 3 adopts a magnetic fixing member having magnetism, and a part of the second fixing members 3 adopts a fixing member having no magnetism but being magnetically attracted, and the first fixing members 2 are correspondingly partially magnetic, partially non-magnetic, or the first fixing members 2 are all magnetic.
The fixing component is preferably arranged on the upstream side of the anastomotic stoma and is used for fixing the protective sleeve 1, so that the protective sleeve 1 does not move towards the downstream side of the anastomotic stoma and lose the protection of the anastomotic stoma. In the present invention, upstream of the stoma means that the intestinal contents move along the intestine from the upstream side of the stoma to the downstream side of the stoma with reference to the direction in which the intestinal contents move along the intestine. When the stoma protection device is applied in the lower position of the intestine, the protective sheath 1 guides the discharge of faeces along the intestine, moving from the upstream side of the stoma to the downstream side of the stoma.
Because the magnetic adsorption position between the first fixing piece 2 and the second fixing piece 3 is relatively fixed in the device, the circumferential length can be elastically stretched, sufficient circumferential stretching space is provided for the intestinal tract, and when the tissue has contents or peristalsis of the tissue, normal blood supply near the anastomotic orifice is ensured. When intestinal tissue 9 peristalsis, first mounting 2 and second mounting 3 can follow intestinal tissue 9 peristalsis and move, and the distance between two adjacent first mounting 2 can change, and the distance between two adjacent second mounting 3 also can change to make anastomotic stoma protection device wholly form a circumference telescopic structure.
In this embodiment, as shown in fig. 4, the protecting sleeve 1 is a tubular protecting sleeve, so as to form circumferential protection for the anastomotic stoma. The protective sheath 1 may be a thin film sleeve having flexibility, such as a rubber film sleeve, a silicone film sleeve, etc., but the present invention is not limited thereto. In other alternative embodiments, the protective sheath 1 may take other shapes, and all or part of the protective sheath may cover the inner wall of the stoma, which falls within the scope of the invention.
As shown in fig. 3 and 4, the end of the protective sleeve 1 located at the upstream side of the anastomotic stoma is provided with a support part 11, and the support part 11 is retractable in the radial direction of the protective sleeve 1. When the supporting part 11 contracts in the radial direction, the protecting sleeve 1 can be integrally put into the intestinal tissue 9 or taken out from the intestinal tissue 9, after the protecting sleeve 1 is put in place, the supporting part 11 expands in the radial direction to form the support for the protecting sleeve 1, so that the protecting sleeve 1 is better attached and sealed with the intestinal wall, and contents are prevented from entering the anastomotic stoma. The support 11 may be an inflatable and deflatable annular elastic balloon, the outer wall of which has elasticity, such as elastic rubber, silica gel, TPU, or a thin PC material, which is attached to the tissue wall after inflation, and the circumferential length of which can be increased when the contents pass through, so that the intestinal tract can be attached well. The supporting portion 11 may also adopt other radially telescopic springs or radially movable slider structures, so that the outer diameter of the supporting portion 11 may be increased or decreased. The fixing component is arranged between the anastomotic stoma and the supporting part 11, and the protection sleeve 1 can be better kept at the anastomotic stoma position through the cooperation of the fixing component and the supporting part 11.
As shown in fig. 3 and 4, the fixing assembly includes a plurality of first fixing members 2 and a plurality of second fixing members 3, and the first fixing members 2 and the second fixing members 3 are sequentially arranged along the circumferential direction of the intestinal tissue 9, respectively, so as to form a uniform and stable fixation for the protective sleeve 1. In this embodiment, a plurality of first fixing members 2 are provided with a space therebetween, and a plurality of second fixing members 3 are provided with a space therebetween. The number of the first fixing members 2 and the second fixing members 3 can be selected according to the needs, and the first fixing members 2 and the second fixing members 3 can form a one-to-one correspondence relationship, a one-to-many relationship, a many-to-one relationship, or the like, which are all within the protection scope of the present invention. In other alternative embodiments, the first fastening means 2 may also be provided in 1 and/or the second fastening means 3 may also be provided in 1. In order to realize the magnetic attraction of the first fixing members 2 and the second fixing members 3, the first fixing members 2 and the second fixing members 3 which are arranged correspondingly are magnetic members, or at least one of the first fixing members 2 and the second fixing members 3 which are arranged correspondingly are magnetic members, and the other one is a non-magnetic member, i.e. each first fixing member 2 and one second fixing member 3 which is arranged correspondingly are a group of fixing members, wherein both of the first fixing members 2 and the second fixing member 3 are magnetic members, or one of the first fixing members and the second fixing member is a non-magnetic member.
As shown in fig. 3 and 4, the surface of the first fixing member 2 opposite to the intestinal tissue 9 is an arc-shaped surface, and the shape of the arc-shaped surface is basically matched with the outer wall of the intestinal tissue 9, so as to achieve better fit between the first fixing member 2 and the outer wall of the intestinal tissue 9. The surface of the second fixing element 3 opposite to the protective sleeve 1 is an arc-shaped surface, and the shape of the arc-shaped surface is basically matched with that of the inner surface of the protective sleeve 1, so that the second fixing element 3 is better fitted with the inner surface of the protective sleeve 1.
Further, in another alternative embodiment, the surface of the first fixing member 2 and/or the second fixing member 3 may also be wavy. Specifically, the surface of the first fixing member 2 facing the intestinal tissue 9 is a wavy surface with high and low fluctuation along the length direction (S direction in fig. 4) of the intestinal tissue 9, so that the surface can be better adapted to the outer wall of the intestinal tissue 9, the contact area between the first fixing member 2 and the intestinal tissue 9 is increased, and the matching degree of the first fixing member 2 and the outer wall of the intestinal tissue 9 is improved. The surface of the second fixing member 3 facing the protective sleeve 1 is a wavy surface with high and low fluctuation along the length direction (S direction in fig. 4) of the intestinal tissue 9, so that the contact area between the second fixing member 3 and the protective sleeve 1 is increased, and the matching degree of the second fixing member 3 and the inner wall of the protective sleeve 1 can be improved.
As shown in fig. 4 and 5, the fixing assembly further includes a first connecting member 4 for carrying the first fixing member 2, and when the first connecting member 4 is installed at the intestinal assembly 9, the first connecting member 4 surrounds the outer wall of the intestinal tissue 9 to form a connection ring structure, so that a circumferential fixation is formed on the protective sleeve 1 together with the first fixing member 2. The first connector 4 includes a first bearing portion 41 and a first connecting portion 42. The first bearing parts 41 are in one-to-one correspondence with the first fixing pieces 2, and bear the corresponding first fixing pieces 2. The first connecting portion 42 is connected between two adjacent first bearing portions 41. The first connector 4 is circumferentially retractable when the first connector 4 is wrapped around the outer wall of the enteral assembly 9. Further, the first connecting member 4 may be an elastic connecting member, and at least the first connecting portion 42 thereof is elastic. Therefore, during intestinal peristalsis, the first connecting piece 4 can elastically deform along with the peristalsis of the intestinal tract, and the limiting pressure is not applied to the intestinal tract, so that a telescopic movement space is provided for the intestinal tract. For example, the first connecting member 4 may be an elastic connecting member made of rubber, silicone, or the like and having a certain elasticity. The first connector 4 may be arranged parallel to the support 11. When the first connection portion 42 and the first bearing portion 41 have elasticity, the elasticity of the first bearing portion 41 may be smaller than the elasticity of the first connection portion 42. So that the first bearing portion 41 better fixes the first fixing member 2, and the first connecting portion 42 can provide better circumferential expansion and contraction capability.
As shown in fig. 8, the first connecting member 4 may further be provided with a connecting structure, where the first connecting member 4 may be connected to encircle the outer wall of the intestinal tissue 9, for example, to form a closed loop structure, or to be disconnected from the outer wall of the intestinal tissue 9 at the connecting structure. I.e. the first connector 4 may have two states: closed loop or non-closed shape. The first connector 4 can be used in two ways: one way is that the first connecting piece 4 is initially in a closed loop, and when it needs to be removed from the intestinal tissue 9, the connecting structure is broken to be separated from the intestinal tissue 9; alternatively, the first connector 4 may be initially in an unsealed configuration, which is then 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 provided at both end portions, respectively, and when the connection protrusion 43 is fitted into the connection groove 44, the first connection member 4 is ring-shaped, and when the connection protrusion 43 is separated from the connection groove 44, the first connection member 4 is bar-shaped or otherwise non-closed. In other alternative embodiments, the connection structure may take other forms, for example, a connection ring and a connection hook are respectively disposed at two ends, and the two ends are hooked together or separated to achieve two states of the first connecting piece 4, or two ends are disposed with an adhesive structure, and two states of the first connecting piece 4 are achieved through adhesion or adhesion separation, or the like. When it is desired to place the first fixing member 2 on the outer wall of the intestinal tissue 9, the first connecting member 4 and the first fixing member 2 may be placed together as a unit into the abdominal cavity, where the first connecting member 4 is an unsealed ring or an elongated structure having two ends, and after the first connecting member 4 is wound around the outer wall of the intestinal tissue 9, the two ends of the first connecting member 4 are connected to each other to form a closed ring shape with a mouthpiece. The connection at the interface can be realized by clamping, connecting an additional fixing piece and the like.
As shown in fig. 1, in this embodiment, the width w1 of the first bearing portion 41 is greater than the width w2 of the first connecting portion 42. Therefore, the first bearing part 41 can bear the first fixing piece 2 with wider width so as to realize better fixing effect of the first fixing piece 2 on the protective sleeve 1, and the width of the first connecting part 42 is smaller, so that the elastic deformation capacity of the first connecting part 42 can be improved, and the peristaltic influence on intestinal tissues 9 is greatly reduced. Further, the width w3 of the annular wall of the first bearing portion 41 may be greater than the width w2 of the first connecting portion 42, so as to improve the connection stability between the first bearing portion 41 and the first fixing member 2. In this embodiment, as shown in fig. 7, the thickness t1 of the first bearing portion 41 and the thickness t2 of the first connecting portion 42 are substantially equal. In a further alternative embodiment, the thickness t1 of the first carrier part 41 may also be greater than the thickness t2 of the first connecting part 42. Thereby, the first bearing portion 41 can bear the first fixing piece 2 with a thicker thickness, so as to realize better fixing effect of the first fixing piece 2 on the protective sleeve 1. And the thickness of the first connecting portion 42 is smaller, the elastic deformability of the first connecting portion 42 can be further improved. The thickness direction corresponds to the radial direction of the first connector 4 after the annular structure is formed (corresponds to the radial direction of the protective sheath 1).
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 member 2, that is, a mounting hole is formed in the first bearing portion 41, and the first fixing member 2 is embedded in the mounting hole. In order to more conveniently mount the first fixing member 2 to the first connecting member 4 and remove the first fixing member from the first connecting member 4, each side wall of the first fixing member 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 take other shapes, and may also be formed separately from the first connecting portion 42 and fixedly connected thereto. As shown in fig. 5, a first fastener installation groove 23 is provided at least partially in the circumferential direction on the side surface of the first fastener 2, and the annular first bearing portion 41 is fitted into the first fastener installation groove 23. In another alternative embodiment, a circumferential mounting groove may be at least partially provided on the inner side of the edge of the hollow annular structure of the first bearing portion 41, and the side surface of the first fixing member 2 is embedded in the mounting groove, so as to achieve stable connection between the first fixing member 2 and the first bearing portion 41.
In this embodiment, as shown in fig. 4, the fixing assembly further comprises a second connection member 5 carrying the second fixing member 3, the second connection member 5 being located on the inner surface of the protective sheath 1 at a position corresponding to the first connection member 4. In this embodiment, the second connecting member 5 is formed to be connected to a ring-shaped structure around the inner surface of the protective sheath 1 when the second connecting member 5 is mounted on the intestinal assembly 9, so as to form a circumferential fixation of the protective sheath 1 together with the first fixing member 2, but the present invention is not limited thereto, and the second connecting member 5 may be formed in other shapes which are not closed. The second connecting piece 5 corresponds to the position of the first connecting piece 4, and forms a fixing ring for the protective sleeve 1. As shown in fig. 6, the second connector 5 includes a second bearing portion 51 and a second connecting portion 52. The second bearing parts 51 are in one-to-one correspondence with the second fixing pieces 3, and bear the corresponding second fixing pieces 3. The second connecting portion 52 is connected between two adjacent second bearing portions 51. The second coupling member 5 is circumferentially telescopic when the second coupling member 5 is mounted at the enteral assembly 9. Further, the second connecting member 5 may be an elastic connecting member, and at least the second connecting portion 52 thereof is elastic. Therefore, during intestinal peristalsis, the second connecting piece 5 can elastically deform along with the peristalsis of the intestinal tract, and the limiting pressure is not applied to the intestinal tract, so that a telescopic movement space is provided for the intestinal tract. For example, the second connecting piece 5 may be an elastic connecting piece made of rubber, silica gel, or the like and having a certain elasticity. The second connection member 5 may be disposed parallel to the support portion 11. The second connecting piece 5 may be a closed ring structure, or may be a connecting piece with a connector, and when installed at the intestinal tract assembly 9, the connecting pieces are connected end to form a connecting ring. When the second connection portion 52 and the second bearing portion 51 have elasticity, the elasticity of the second bearing portion 51 may be smaller than the elasticity of the second connection portion 52. So that the second bearing portion 51 better fixes the second fixing member 3, and the second connecting portion 52 can provide better circumferential expansion and contraction capability.
As shown in fig. 6, in this embodiment, the width of the second bearing portion 51 is larger than the width of the second connecting portion 52. The width direction may refer to the width direction of the first bearing portion 41 in fig. 1. Therefore, the second bearing part 51 can bear the second fixing piece 3 with wider width so as to realize better fixing effect of the second fixing piece 3 on the protective sleeve 1, and the width of the second connecting part 52 is smaller, so that the elastic deformation capacity of the second connecting part 52 can be improved, and the peristaltic influence on intestinal tissues 9 is greatly reduced. Further, the width of the annular wall of the second bearing portion 51 may be greater than the width of the second connecting portion 52, so as to improve the connection stability between the second bearing portion 51 and the second fixing member 3. In this embodiment, as shown in fig. 7, the thickness t3 of the second bearing portion 51 and the thickness t4 of the second connecting portion 52 are substantially equal. In a further alternative embodiment, the thickness t3 of the second carrier part 51 may also be greater than the thickness t4 of the second connecting part 52. Thereby, the second bearing part 51 can bear the second fixing piece 3 with thicker thickness, so as to realize better fixing effect of the second fixing piece 3 on the protective sleeve 1. And the thickness of the second connection portion 52 is smaller, the elastic deformability of the second connection portion 52 can be further improved.
The second bearing portion 51 and the second connecting portion 52 are integrally formed, and the second bearing portion 51 is a hollow annular structure surrounding the second fixing member 3, that is, a mounting hole is provided in the second bearing portion 51, and the second fixing member 3 is embedded in the mounting hole. In order to more conveniently mount and remove the second fixing member 3 from the second connecting member 5, each side wall of the second fixing member 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 part 51 may take other shapes, and may also be formed separately from the second connecting part 52 and fixedly connected thereto. As shown in fig. 6, a circumferential second mount mounting groove 32 is provided at least partially on the side surface of the second mount 3, and the annular second bearing portion 51 is fitted into the second mount mounting groove 32. In another alternative embodiment, a circumferential mounting groove may be at least partially provided on the inner side of the edge of the hollow annular structure of the second bearing part 51, and the side surface of the second fixing element 3 is embedded in the mounting groove, so as to realize stable connection between the second fixing element 3 and the second bearing part 51.
In this embodiment, the second connector 5 may also be integrally formed with the protective sleeve 1. In an alternative embodiment, the second connecting piece 5 may be fixed to the protective casing 1 by gluing or the like after being formed separately. In another alternative embodiment, the second connection element 5 may also be not fixed in advance in the protective sheath 1, but placed in the corresponding position of the protective sheath 1 by the doctor at the time of the operation.
In an alternative implementation of this embodiment, as shown in fig. 9, the first connecting member 4 may be a flexible connecting member, instead of an elastic connecting member, and may have a certain redundancy length in the circumferential direction. I.e. the first connector 4 has a diameter larger than the outer diameter of the intestine before the first connector 4 is not placed in the intestine. The redundant length of the first connector 4 provides a scalable space for the diameter of the first connector 4 during intestinal peristalsis, so as not to affect the normal peristalsis of the intestine and to ensure a normal blood supply at the stoma. In another alternative embodiment, it is also possible that the second connecting element 5 is not an elastic connecting element, but a flexible connecting element similar to the shape of the first connecting element 4 in fig. 9, and has a certain redundant length in the circumferential direction.
Fig. 10 is a schematic structural view of an anastomotic stoma protection device according to a second embodiment of the present invention applied to the intestinal tract. In this embodiment, the outer wall of the intestinal tissue 9 is not provided with a first connecting element, but with a plurality of first fastening elements 2 separated from one another. At the time of surgery, the first fixtures 2 may be placed one by one at positions corresponding to the second fixtures 3, achieving relative fixation of the first fixtures 2 and the second fixtures 3. This structure eliminates the structure of the first connector and the device has fewer parts than the first embodiment. At the point where the first fixture 2 is not provided, the device will not apply any pressure to the tissue, and will not affect the normal blood supply to the stoma. And the circumferential distance between the plurality of first fixtures 2 can freely increase or decrease along with the peristaltic movement of the intestinal tissue 9 when the intestinal tissue 9 is peristaltic, namely, the circumferential telescopic space is also provided for the intestinal tissue 9.
In this embodiment, at least part of the first fixing members 2 may be made of a bioabsorbable material, for example, a bioabsorbable iron-based material, and the second fixing members 3 may be made of a magnetic material, and are attracted to the first fixing members 2. Furthermore, the first fixing member 2 may be made of a magnetized bioabsorbable iron-based material, and the second fixing member 3 may be made of a magnetic material or a magnetically attractable material. After the anastomotic stoma protection device is arranged in the intestinal tract, the first fixing piece 2 can be gradually absorbed by a human body without the need of subsequent dismantling, so that the step of removing the first fixing piece 2 after operation is saved. The second fixing piece 3 can be fixedly connected with the protective sleeve 1, and after the postoperative anastomotic stoma is long, only the integral structure of the protective sleeve 1 and the second fixing piece 3 is required to be taken out together, so that the operation is simpler and more convenient.
In other alternative embodiments, at least part of the second fixing member 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 omitting the step of removing the second fixing member 3 after the operation.
Further, the second connecting piece 5 may be made of a bioabsorbable material, for example, a bioabsorbable medical film, so as to be flexible or elastic while ensuring a certain strength. Thereby omitting the step of removing the second connecting member 5 after operation. In the first embodiment, the first connecting member 4 may also be made of a bioabsorbable material, for example, a bioabsorbable medical film, and has flexibility or elasticity while ensuring a certain strength. Thereby omitting the step of post-operative removal of the first connector 4.
In other embodiments of the present invention, one or more of the first fixing element 2, the second fixing element 3, the first connecting element 4 and the second connecting element 5 may be at least partially made of a bioabsorbable material, and may be naturally absorbed after a period of time in the human body without being manually removed after operation. In the case where the first fixing member 2 is a magnetic fixing member, the first fixing member 2 may also be a bio-absorbable magnetic fixing member. In the case where the second fixing member 3 is a magnetic fixing member, the second fixing member 3 may also be a bio-absorbable magnetic fixing member.
Fig. 11 is a schematic view of an anastomotic stoma protection device according to a third embodiment of the present invention applied to the intestinal tract. In this embodiment, the interior of the protective sleeve 1 is not provided with a second connection, but with a plurality of second fixing elements 3 which are separated from one another. At the time of surgery, the first fixtures 2 may be placed one by one at positions corresponding to the first fixtures 2, achieving relative fixation of the first fixtures 2 and the second fixtures 3. This structure eliminates the structure of the second connector and the device has fewer parts than the first embodiment. At the position where the second fixing element 3 is not arranged, the device does not apply any pressure to the tissue, and the normal blood supply of the anastomotic orifice is not affected. And the circumferential distance between the plurality of second fixtures 3 can freely increase or decrease along with the peristaltic movement of the intestinal tissue 9 when the intestinal tissue 9 is peristaltic, namely, the circumferential telescopic space is also provided for the intestinal tissue 9.
Fig. 12 is a schematic view of an anastomotic stoma protection device according to a fourth embodiment of the present invention applied to the intestinal tract. In this embodiment, the outer wall of the intestinal tissue 9 is not provided with a first connector, and the interior of the protective sheath 1 is not provided with a second connector. At the time of operation, the corresponding positions of the first fixing piece 2 and the second fixing piece 3 can be put into the required positions. Thus, in this embodiment, the device comprises only the protective sheath, the first securing member 2 and the second securing member 3. The second fixing piece 3 can be pre-installed in the protective sleeve 1 before operation, so that the first fixing piece 2 and the second fixing piece 3 can be aligned conveniently in the operation process. In addition, the second fixture 3 may not be previously installed in the protective sheath 1, and the first fixture 2 and the second fixture 3 may be placed at desired positions during the operation.
As shown in fig. 13 and 14, in the fourth embodiment, the inner surface of the protective cover 1 may be further provided with mounting grooves corresponding to the second fixing members 3 one by one, so as to better realize positioning of the second fixing members 3 on the inner surface of the protective cover 1. The second fixing piece 3 is embedded in the corresponding mounting groove, so that the second fixing piece 3 and the inner surface of the protective sleeve 1 can be detachably fixed. Fig. 13 and 14 show two different mounting groove structures, wherein the mounting groove in fig. 13 is a pit 12 recessed outside the surface of the protective sleeve 1, and the mounting groove in fig. 14 is a groove surrounded by an annular mounting piece 13 protruding from the inner surface of the protective sleeve 1. The second fixture 3 may be pre-inserted into an installation groove formed in the inner surface of the protective sheath 1 before surgery, and then the whole of the protective sheath 1 and the second fixture 3 is placed into the intestinal tissue 9. The second fixing member 3 may not be mounted in advance, but the second fixing member 3 may be fitted into the corresponding mounting groove during the operation. The structure of the mounting groove in fig. 13 and 14 can also be applied to the third embodiment shown in fig. 12.
Fig. 15 is a schematic view of a stoma protection apparatus according to a fifth embodiment of the present invention disposed in an intestinal tract. In this embodiment, the first fixing member 2 is embedded inside the first connecting member 4, and the first fixing member 2 is not separable from the first connecting member 4. The first bearing part embedded in the first connecting piece 4 corresponding to the first fixing piece 2 has the same width as the first connecting part, and the whole first connecting piece 4 forms a magnetic ring with uniform width. The first connecting member 4 may be an elastic ring made of rubber, silicone, or the like. Therefore, the whole first connecting piece 4 can form a strip-shaped structure, and the storage is more convenient.
Similarly, the second connecting piece 5 may also adopt a similar structure as the first connecting piece 4, the second bearing portion of the second connecting piece 5 corresponding to the second fixing piece 3 is the same as the width of the second connecting portion, and the second fixing piece 3 may also be embedded in the second connecting piece 5 in a similar manner to form an integral magnetic ring of the second fixing piece 3. Thereby, the second connecting piece 5 can form a belt-shaped structure, and is more convenient to store.
Fig. 16 is a schematic structural view of a first fixing member according to a sixth embodiment of the present invention. In this embodiment, the outer wall of the intestinal tissue 9 is provided with a plurality of first fixing members 2, and the side of the first fixing members 2 facing the intestinal tissue 9 is an arc surface. The first fixing pieces 2 are connected end to form an annular structure. In order to provide a circumferential expansion space for intestinal tissues 9, a circumferential expansion matching structure 24 is formed at the joint position of two adjacent first fixing pieces 2, so that the requirement of circumferential expansion can be met. The first fixing element 2 may be only partially magnetic or magnetically attractable, i.e. only partially attracted to the second fixing element 3, thereby avoiding an obstruction to intestinal peristalsis.
In other alternative embodiments, the second fixing member 3 may also adopt a structure similar to the first fixing member 2 in fig. 16, that is, a plurality of second fixing members 3 are connected end to form a fixing ring, and a connection structure with telescopic circumference is formed at the connection position of two adjacent second fixing members 3, so as to meet the requirement of telescopic circumference. The second fixing element 3 may be only partially magnetic or magnetically attractable, i.e. only partially attracted to the first fixing element 2, thereby avoiding an obstruction to intestinal peristalsis.
The anastomotic stoma protection devices according to the first to sixth embodiments described above may be applied to the protection of a lower intestinal stoma, or may be applied to the protection of a higher intestinal stoma. In the case of application to the high-lying stoma protection of the intestine, if the protective sheath 1 is to be used for guiding to the abdominal wall site, a long protective sheath 1 is required, which is inconvenient to install and use. In this case, therefore, a short protective sleeve 1 can be used, protecting only against the stoma site. In this embodiment, two of the fixation assemblies are included, the two fixation assemblies being disposed on an upstream side and a downstream side of the stoma, respectively.
Fig. 17 is a perspective view of a stoma protecting apparatus according to a seventh embodiment of the invention disposed in an intestinal tract. In this embodiment, the stoma protection device is used for high-order stoma protection of the intestinal tract. A group of first connecting pieces 4 and first fixing pieces 2 are arranged on the outer wall of intestinal tissue 9 at the upstream side of the anastomotic stoma, a second fixing piece is correspondingly arranged in the protective sleeve 1, another group of first connecting pieces 4 and first fixing pieces 2 are arranged on the outer wall of intestinal tissue 9 at the downstream side of the anastomotic stoma, and a second fixing piece is correspondingly arranged in the protective sleeve 1. The structure can greatly save the length of the needed protective sleeve 1 on one hand, is more convenient for the placement of the protective sleeve 1 in the operation process and the removal of the protective sleeve 1 after the anastomotic stoma is restored, and can better fix the protective sleeve 1 at the needed position on the other hand, thereby ensuring the stability in the use process.
Fig. 18 is a perspective view of an anastomotic stoma protecting apparatus according to an eighth embodiment of the present invention disposed in the intestinal tract. In this embodiment, the anastomotic stoma protection device may also be used for the high-lying intestinal stoma protection. A group of first fixing pieces 2 are arranged on the outer wall of the intestinal tissue 9 at the upstream side of the anastomotic stoma, a second fixing piece is correspondingly arranged in the protective sleeve 1, another group of first fixing pieces 2 are arranged on the outer wall of the intestinal tissue 9 at the downstream side of the anastomotic stoma, and a second fixing piece is correspondingly arranged in the protective sleeve 1.
In addition, other structures and various combinations of the fixing components in the first to sixth embodiments may be applied to the protection of the high-level stoma of the intestinal tract, and two fixing components may be provided separately, which are located on the upstream side and the downstream side of the stoma, respectively.
The materials of all the embodiments of the anastomotic stoma protection device provided by the invention are all materials meeting the biocompatibility.
The anastomotic stoma protection device provided by the invention has the following advantages:
The inner surface of the anastomotic stoma is protected by the protective sleeve, the anastomotic stoma is not polluted in the process of guiding the tubular tissue content to pass, and the protective sleeve is fixed at a required position by magnetic adsorption between the first fixing piece and the second fixing piece; in the device, only the magnetic adsorption position between the first fixing piece and the second fixing piece is relatively fixed, the circumferential length can be elastically stretched, sufficient circumferential stretching space is provided for tissues, and when contents are contained in the tissues or the tissues themselves creep, normal blood supply near an anastomotic orifice is ensured.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (20)
1. An anastomotic stoma protection device, comprising:
The protective sleeve is positioned in the tubular tissue at a position corresponding to the anastomotic stoma;
The fixing assembly comprises at least one first fixing piece and at least one second fixing piece, the first fixing piece is arranged on the outer wall of the tubular tissue, the second fixing piece is arranged on the inner surface of the protective sleeve at a position corresponding to the first fixing piece, and the first fixing piece and the second fixing piece are relatively fixed through magnetic adsorption;
The fixing assembly comprises a plurality of first fixing pieces which are arranged along the circumferential direction of the tubular tissue, and the first fixing pieces form a circumferentially telescopic structure; the fixing assembly comprises a plurality of second fixing pieces, the second fixing pieces are arranged along the circumference of the tubular tissue, and the second fixing pieces form a circumferentially telescopic structure.
2. The anastomosis protection device of claim 1, wherein the first and second securing members are arranged in sequence along a circumference of the tubular tissue, respectively.
3. The stoma protection device of claim 2, wherein the first and second securing members of the respective arrangement are magnetic members, or at least one is a magnetic member and the other is a non-magnetic member.
4. The stoma protection device of claim 1, wherein a plurality of first fasteners are provided with spaces therebetween and a plurality of second fasteners are provided with spaces therebetween.
5. The stoma protection appliance of claim 1, wherein the securing assembly is disposed on an upstream side of the stoma.
6. The stoma protection device of claim 5, wherein an end of the protective sheath upstream of the stoma is provided with a support that is stretchable in a radial direction of the protective sheath, the securing assembly being disposed between the stoma and the support.
7. The stoma protection device of claim 1, comprising two of the securing assemblies disposed on an upstream side and a downstream side of the stoma, respectively.
8. The anastomosis protection device of claim 1, wherein the securing assembly further comprises at least one connector comprising a first connector carrying the first securing member, the first connector encircling an outer wall of the tubular tissue.
9. The stoma protection device of claim 8, wherein the first connector is provided with a connection structure at which the first connector is connectable around the outer wall of the tubular tissue or at which the first connector is disconnected from the outer wall of the tubular tissue.
10. The stoma protection device of claim 1, wherein the securing assembly further comprises at least one connector comprising a second connector carrying the second securing member, the second connector being located on an inner surface of the protective sheath.
11. The stoma protection device of claim 10, wherein the second connector is integrally formed with the protective sheath.
12. The stoma protection device of claim 8 or 10, wherein the connector is retractable along a circumferential direction of the tubular tissue when the connector is mounted at the tubular tissue.
13. The stoma protection device of claim 8 or 10, wherein the connector is of a bioabsorbable material.
14. The stoma protection device of claim 1, wherein the securing assembly further comprises at least one connector comprising a first connector carrying the first securing member and a second connector carrying the second securing member, the first connector surrounding an outer wall of the tubular tissue, the second connector being located on an inner surface of the protective sheath corresponding to the first connector;
the circumference of the first fixing piece is at least partially provided with a fixing piece mounting groove, the inner circumference of the first connecting piece is embedded with the fixing piece mounting groove, or the inner circumference of the first connecting piece is at least partially provided with a fixing piece mounting groove, and the first fixing piece is embedded with the fixing piece mounting groove;
the circumference of second mounting is equipped with the mounting groove at least partially, the inner periphery of second connecting piece with the mounting groove gomphosis of mounting, perhaps the inner periphery of second connecting piece is equipped with the mounting groove at least partially, the second mounting with the mounting groove gomphosis of mounting.
15. The anastomotic stoma protection device according to claim 1, wherein the inner surface of the protective sleeve is provided with mounting grooves corresponding to the second fixing pieces one by one, and the second fixing pieces are embedded in the corresponding mounting grooves.
16. The stoma protection device of claim 1, wherein a surface of the first securing member opposite the tubular tissue is an arcuate surface and a surface of the second securing member opposite the protective sheath is an arcuate surface.
17. The stoma protection device of claim 1, wherein at least one of the first fastening pieces is a bioabsorbable material and/or at least one of the second fastening pieces is a bioabsorbable material.
18. The stoma protection device of claim 1, wherein at least one of the first fastening members is a magnetic fastening member and/or at least one of the second fastening members is a magnetic fastening member.
19. The stoma protection device of claim 1, wherein at least one of the first fastening members is a bioabsorbable magnetic fastening member and/or at least one of the second fastening members is a bioabsorbable magnetic fastening member.
20. The anastomotic stoma protection device according to claim 1, wherein a plurality of the first fixing pieces are connected end to end in sequence to form a ring shape, and the connection positions of two adjacent first fixing pieces form a telescopic connection structure; and/or
The second fixing pieces are sequentially connected end to form a ring, and the connecting positions of two adjacent second fixing pieces form a telescopic connecting structure.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011311153.XA CN114515177B (en) | 2020-11-20 | 2020-11-20 | Anastomotic stoma protection device |
| JP2023530514A JP7575159B2 (ja) | 2020-11-20 | 2021-11-19 | 吻合口の保護装置 |
| PCT/CN2021/131646 WO2022105853A1 (en) | 2020-11-20 | 2021-11-19 | Anastomosis protection device |
| EP21894000.5A EP4248903A4 (en) | 2020-11-20 | 2021-11-19 | Anastomosis protection device |
| CA3202598A CA3202598A1 (en) | 2020-11-20 | 2021-11-19 | Anastomosis protection device |
| US18/253,315 US20240023964A1 (en) | 2020-11-20 | 2021-11-19 | Anastomosis protection device |
| KR1020237020772A KR20230110327A (en) | 2020-11-20 | 2021-11-19 | anastomosis protector |
| AU2021383888A AU2021383888A1 (en) | 2020-11-20 | 2021-11-19 | Anastomosis protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011311153.XA CN114515177B (en) | 2020-11-20 | 2020-11-20 | Anastomotic stoma protection device |
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| CN114515177A CN114515177A (en) | 2022-05-20 |
| CN114515177B true CN114515177B (en) | 2024-05-28 |
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| CN114515177A (en) | 2022-05-20 |
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