CN114515200B - Magnetic particle-based anastomotic stoma protection assembly - Google Patents
Magnetic particle-based anastomotic stoma protection assembly Download PDFInfo
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- CN114515200B CN114515200B CN202011314455.2A CN202011314455A CN114515200B CN 114515200 B CN114515200 B CN 114515200B CN 202011314455 A CN202011314455 A CN 202011314455A CN 114515200 B CN114515200 B CN 114515200B
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- 239000006249 magnetic particle Substances 0.000 title claims abstract description 125
- 230000001681 protective effect Effects 0.000 claims abstract description 84
- 239000000463 material Substances 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 23
- 238000000576 coating method Methods 0.000 claims description 23
- 230000005389 magnetism Effects 0.000 claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 13
- 239000000696 magnetic material Substances 0.000 claims description 2
- 230000000968 intestinal effect Effects 0.000 description 62
- 210000001035 gastrointestinal tract Anatomy 0.000 description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 230000036770 blood supply Effects 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 210000000936 intestine Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- 230000008855 peristalsis Effects 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 229910017052 cobalt Inorganic materials 0.000 description 5
- 239000010941 cobalt Substances 0.000 description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002572 peristaltic effect Effects 0.000 description 4
- 239000010408 film Substances 0.000 description 3
- 210000003736 gastrointestinal content Anatomy 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
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- 238000010168 coupling process Methods 0.000 description 2
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- 230000005489 elastic deformation Effects 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
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- 238000009828 non-uniform distribution Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
-
- 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)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pathology (AREA)
- Prostheses (AREA)
Abstract
The invention provides a magnetic particle-based anastomotic stoma protection component, which is provided with a protective sleeve, wherein the protective sleeve is positioned in the tubular tissue at a position corresponding to the anastomotic stoma; the first fixing part is arranged on the outer wall of the tubular tissue and is provided with at least one first suction part; the second fixing part is arranged on the inner surface of the protective sleeve at a position corresponding to the first fixing part, and is provided with at least one second suction part; the first attraction part and the second attraction part are mutually fixed through magnetic attraction, and magnetic particles are distributed in at least one first attraction part and/or at least one second attraction part. The invention can fix the protective sleeve by adding the magnetic particles in the fixing parts, so that the fixing parts can be magnetically attracted, and can provide sufficient circumferential expansion space for tubular tissues.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a magnetic particle-based anastomotic stoma protection component.
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
In view of the problems in the prior art, the invention aims to provide a magnetic particle-based anastomotic stoma protection component, which can fix a protective sleeve by adding magnetic particles in fixing parts so that the fixing parts can be magnetically attracted, and can provide sufficient circumferential telescopic space for tubular tissues.
The embodiment of the invention provides a magnetic particle-based anastomotic stoma protection component, which is used for protecting a tubular tissue anastomotic stoma, and comprises the following components:
The protective sleeve is positioned in the tubular tissue at a position corresponding to the anastomotic stoma;
The first fixing part is arranged on the outer wall of the tubular tissue and is provided with at least one first suction part;
The second fixing part is arranged on the inner surface of the protective sleeve at a position corresponding to the first fixing part, and is provided with at least one second suction part;
The first attraction part and the second attraction part are mutually fixed through magnetic attraction, and magnetic particles are distributed in at least one first attraction part and/or at least one second attraction part.
In some embodiments, the first attraction portion and the second attraction portion are each distributed with magnetic particles, the magnetic particles in the first attraction portion are the same in magnetic properties, the magnetic particles in the second attraction portion are the same in magnetic properties, and the magnetic particles in the first attraction portion and the magnetic particles in the second attraction portion are opposite in magnetic properties.
In some embodiments, the position of the first attraction portion corresponds to the position of the second attraction portion, and a corresponding set of the first attraction portion and the second attraction portion each have magnetism, or one has magnetism and the other does not have magnetism but can be magnetically attracted.
In some embodiments, the first fixation component includes a plurality of the first suction portions disposed at intervals from each other and distributed along a circumference of the tubular tissue;
The second fixing member includes a plurality of the second suction portions, which correspond to the first suction portions.
In some embodiments, the first attraction portion includes a first fixed block whose surface is coated with a first magnetic particle coating or whose interior is doped with magnetic particles.
In some embodiments, the first fixation component further comprises a first connector carrying the first fixation block, the first connector encircling an outer wall of the tubular tissue, the first connector being circumferentially expandable.
In some embodiments, the first fixation component comprises a first connection surrounding an outer wall of the tubular tissue, the first connection having the first attraction disposed therein, a surface of the first attraction being coated with a third magnetic particle coating or an interior of the first connection being doped with magnetic particles.
In some embodiments, the first connector is provided with a connection structure at which the first connector may be connected to encircle 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 first connector is a bioabsorbable material.
In some embodiments, the second attractive portion includes a second magnetic particle coating applied to an inner surface of the protective sheath.
In some embodiments, the second attraction portion includes a second fixed block, a surface of which is coated with a second magnetic particle coating or an interior of which is doped with magnetic particles.
In some embodiments, the second securing member further comprises a second connector carrying the second securing block, the second connector being located on an inner surface of the protective sheath.
In some embodiments, the second fixing component comprises a second connecting piece located on the outer wall of the tubular tissue, the second connecting piece is provided with the second attraction part, and the surface of the second attraction part is coated with a fourth magnetic particle coating or the interior of the second connecting piece is doped with magnetic particles.
In some embodiments, the second connector is a bioabsorbable material.
In some embodiments, the first and second fixation members are located 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 first fixation members and two of the second fixation members are included, one of the first fixation members and one of the second fixation members being disposed on an upstream side of the stoma, the other of the first fixation members and the other of the second fixation members being disposed on a downstream side of the stoma.
In some embodiments, the first securing member comprises at least one first securing block and/or the second securing member comprises at least one second securing block;
at least one of the first and/or second fixation blocks is made of a bioabsorbable material.
In some embodiments, at least one of the first and/or second fixation blocks is made of a bioabsorbable magnetic material.
In some embodiments, the first securing member includes at least one first securing block and a first connector carrying the first securing block; and/or the second fixing part comprises at least one second fixing block and a second connecting piece for bearing the second fixing block;
The circumference of the first fixed block is at least partially provided with a fixed block mounting groove, the inner circumference of the first connecting piece is embedded with the fixed block mounting groove, or the inner circumference of the first connecting piece is at least partially provided with a fixed block mounting groove, and the first fixed block is embedded with the fixed block mounting groove;
The circumference of second fixed block is equipped with the fixed block mounting groove at least partially, the inner periphery of second connecting piece with the fixed block mounting groove gomphosis, perhaps the inner periphery of second connecting piece is equipped with the fixed block mounting groove at least partially, the second fixed block with the fixed block mounting groove gomphosis.
The magnetic particle-based anastomotic stoma protection component 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 contents to pass through, and magnetic particles are distributed on the first attraction part and/or the second attraction part, so that magnetic attraction can be realized between the first attraction part and the second attraction part, and the protective sleeve is fixed at a required position; only the magnetic adsorption position between the first suction part and the second suction part in the component is relatively fixed, so that sufficient circumferential expansion space is provided for tubular 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 component 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 view of a stoma protection component according to a first embodiment of the invention applied to intestinal tissue;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic view of a first stationary member of a first embodiment of the invention;
FIG. 4 is a schematic illustration of the first connector of the first embodiment of the present invention broken away;
FIG. 5 is a schematic view of the second securing member mated with the protective sheath in accordance with the first embodiment of the invention;
fig. 6 is a front view of a first fixing member of the first embodiment of the present invention;
Fig. 7 is a front view of a second fixing member of the first embodiment of the present invention;
FIG. 8 is a side view of a first securing member and a second securing member of a first embodiment of the present invention;
FIG. 9 is a schematic view of a stoma protection component according to a second embodiment of the invention applied to intestinal tissue;
Figure 10 is a schematic view of a second securing member mated with a protective sheath in accordance with a second embodiment of the invention;
FIG. 11 is a schematic view of a stoma protection component according to a third embodiment of the invention applied to intestinal tissue;
FIG. 12 is a schematic view of a stoma protection component according to a fourth embodiment of the invention applied to intestinal tissue;
FIG. 13 is a schematic view of a stoma protection component according to a fifth embodiment of the invention applied to intestinal tissue;
Fig. 14 is a schematic view of a stoma protection component according to a sixth embodiment of the invention applied to intestinal tissue;
Fig. 15 is a schematic view of a stoma protection component according to a seventh embodiment of the invention applied to intestinal tissue;
fig. 16 is a schematic view of a first connector of a seventh embodiment of the present invention broken;
FIG. 17 is a schematic view of a stoma protection component according to an eighth embodiment of the invention applied to intestinal tissue;
fig. 18 is a schematic view of a stoma protection component according to a ninth embodiment of the invention applied to intestinal tissue.
Reference numerals:
1. first bearing part of protective sleeve 41
11. First connecting portion of the supporting portion 42
12. Pit 43 connecting protrusion
2. First fixing block 44 connecting groove
21. First fixed block fillet 5 second connecting piece
22. First fixed block mounting groove 51 second bearing part
3. Second connecting portion of second fixing block 52
31. External magnetic particles of second fixed block fillets 6
32. Magnetic particles inside the second fixed block mounting groove 7
4. First connector 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 a magnetic particle-based anastomotic stoma protection component which is used for protecting a tubular tissue anastomotic stoma. The assembly comprises: the protective sleeve is positioned in the tubular tissue at a position corresponding to the anastomotic stoma; the first fixing part is arranged on the outer wall of the tubular tissue and is provided with at least one first suction part; the second fixing part is arranged on the inner surface of the protective sleeve at a position corresponding to the first fixing part, and is provided with at least one second suction part; the first attraction part and the second attraction part are mutually fixed through magnetic attraction, and magnetic particles are distributed in at least one first attraction part and/or at least one second attraction part.
The first attraction part and/or the second attraction part are/is distributed with magnetic particles, and the first fixing part and the second fixing part are relatively fixed through magnetic adsorption, so that the protective sleeve is fixed at a required position; only the magnetic adsorption position between the first suction part and/or the second suction part in the assembly 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 the anastomotic stoma is ensured.
The following describes the structure of the magnetic particle-based stoma protection component 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.
Fig. 1 to 4 are schematic structural views of a magnetic particle-based stoma protection component according to a first embodiment of the present invention. In this embodiment, the magnetic particle based stoma protection component comprises: the protective sleeve 1 is positioned in the intestinal tract assembly 9 at a position corresponding to the anastomotic stoma, plays a role in protecting the inner surface of the anastomotic stoma, and does not pollute the anastomotic stoma in the process of guiding intestinal tract contents to pass through; a first fixing member provided on an outer wall of the intestinal tract assembly 9; and a second fixing member provided on the inner surface of the protective case 1 at a position corresponding to the first fixing member. 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 completely, and the anastomotic stoma protection component 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.
In order to fix the protective sleeve 1, the first fixing component includes a first suction portion, the second fixing component includes a second suction portion, and the first suction portion and the second suction portion are relatively fixed by magnetic attraction. Magnetic particles are distributed in the first attraction part and/or the second attraction part. In order to realize mutual magnetic attraction of the first attraction portion and the second attraction portion, the position of the first attraction portion corresponds to the position of the second attraction portion, and a corresponding group of the first attraction portion and the second attraction portion has magnetism or one has magnetism and the other has no magnetism and can be attracted magnetically. The magnetically attractive portion may be, for example, a form in which magnetic particles are distributed, or a material which itself has magnetism, and a magnetically attractive portion which does not have magnetism and can be magnetically attracted may be, for example, a magnetically attractive metal such as iron or nickel. In this embodiment, the first magnetic part and the second magnetic part are both distributed with magnetic particles. However, the present invention is not limited thereto, and in other embodiments, the first magnetic portion may be provided with magnetic particles, the second magnetic portion may be provided with no magnetic particles, or the first magnetic portion may be provided with no magnetic particles, the second magnetic portion may be provided with magnetic particles, or a part of the first magnetic portion may be provided with magnetic particles, a part of the second magnetic portion may be provided with magnetic particles, etc., which are all within the scope of the present invention.
As shown in fig. 2, in this embodiment, magnetic particles are distributed in each of the first attraction portion and the second attraction portion, the magnetic particles in the first attraction portion are identical in magnetism, the magnetic particles in the second attraction portion are identical in magnetism, and the magnetic particles in the first attraction portion and the magnetic particles in the second attraction portion are opposite in magnetism.
The external magnetic particles 6 may be applied to the surface of the first magnetic part in the form of a first magnetic particle coating, for example to the inner surface of the first attraction facing the intestinal assembly 9. The magnetic particles can be made into magnetic particle coating with adhesive, solvent, etc., and coated on the surface of plastic or metal sheet base. The external magnetic particles 6 may also be formed in the first attraction in a magnetic particle doped form. The inner magnetic particles 7 may be applied to the surface of the second attraction in the form of a second magnetic particle coating, for example to the outer surface of the second attraction facing the protective sheath 1. The magnetic particles can be made into magnetic particle coating with adhesive, solvent, etc., and coated on the surface of plastic or metal sheet base. The internal magnetic particles 7 may also be formed in the second attraction in a magnetic particle doped form. The size and distribution manner of the magnetic particles in each view of the present invention are only examples, and the size of the magnetic particles adopted in practical application may be larger or smaller than the examples shown in the figures, and the distribution of the magnetic particles may be uniform distribution or nonuniform distribution, which falls within the protection scope of the present invention.
As shown in fig. 1 to 3, the first suction part includes a first fixed block 2, and the second suction part includes a second fixed block 3. The first fixing block 2 is disposed on the outer wall of the intestinal tissue 9, the second fixing block 3 is disposed on the inner surface of the protective sleeve 1 at a position corresponding to the first fixing block 2, and the first fixing block 2 and the second fixing block 3 are relatively fixed through magnetic adsorption, so that the position of the protective sleeve 1 relative to the intestinal tissue 9 is maintained through the fixation of the first fixing block 2 and the second fixing block 3.
The first fixing element and the second fixing element are preferably disposed on the upstream side of the stoma for fixing the protective sheath 1 so that the protective sheath 1 does not move to the downstream side of the stoma and lose protection of the 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 assembly 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 only the magnetic adsorption position between the first fixed block 2 and the second fixed block 3 in the assembly is relatively fixed, sufficient circumferential telescopic space is provided for the intestinal tract, and normal blood supply near the anastomotic stoma is ensured. When intestinal tissues 9 creep, the first fixing blocks 2 and the second fixing blocks 3 can move along with the intestinal tissues 9 creep, the distance between two adjacent first fixing blocks 2 can be changed, and the distance between two adjacent second fixing blocks 3 can also be changed, so that the anastomotic stoma protection component integrally forms a circumferentially telescopic structure.
In this embodiment, as shown in fig. 2, 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. 1 and 2, 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 first fixing component and the second fixing component are arranged between the anastomotic stoma and the supporting portion 11, and the protective sheath 1 can be better kept at the anastomotic stoma position through the cooperation of the first fixing component and the second fixing component with the supporting portion 11.
As shown in fig. 2 and 3, the assembly 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 circumference 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 blocks 2 are provided with a space therebetween, and a plurality of second fixing blocks 3 are provided with a space therebetween. The number of the first fixing blocks 2 and the second fixing blocks 3 can be selected and set according to the needs, and the first fixing blocks 2 and the second fixing blocks 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 block 2 may also be provided as 1 and/or the second fastening 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-shaped surface, and the shape of the arc-shaped surface is basically adapted to the outer wall of the intestinal tissue 9, so as to achieve better fit between the first fixing block 2 and the outer wall of the intestinal tissue 9. The surface of the second fixing block 3 opposite to the protective sleeve 1 is an arc surface, and the shape of the arc surface is basically matched with that of the inner surface of the protective sleeve 1, so that the second fixing block 3 is better attached to the inner surface of the protective sleeve 1.
Further, in another alternative embodiment, the surface of the first and/or second fixing blocks 2, 3 may also be wavy. Specifically, the surface of the first fixing block 2 facing the intestinal tissue 9 is a wavy surface with high and low fluctuation along the length direction (S direction in fig. 2) of the intestinal tissue 9, which can be better adapted to the outer wall of the intestinal tissue 9, increase the contact area between the first fixing block 2 and the intestinal tissue 9, and improve the matching degree of the first fixing block 2 and the outer wall of the intestinal tissue 9. The surface of the second fixing block 3 facing the protective sleeve 1 is a wavy surface with high and low fluctuation along the length direction (S direction in fig. 2) of the intestinal tissue 9, so that the contact area between the second fixing block 3 and the protective sleeve 1 is increased, and the matching degree of the second fixing block 3 and the inner wall of the protective sleeve 1 can be improved.
As shown in fig. 2 and 3, the first fixing element further includes a first connecting member 4 for carrying the first fixing block 2, and when the first connecting member 4 is installed at the intestinal tract assembly 9, the first connecting member 4 surrounds the outer wall of the intestinal tract tissue 9 to form a connection annular structure, so that a circumferential fixing is formed on the protective sleeve 1 together with the first fixing block 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 fixed blocks 2, and bear the corresponding first fixed blocks 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.
As shown in fig. 4, 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. 4 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 block 2 on the outer wall of the intestinal tissue 9, the first connecting member 4 and the first fixing block 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. 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, a mounting hole is provided in the first bearing portion 41, and the first fixing block 2 is embedded in the mounting hole. In order to more conveniently mount the first fixing block 2 to the first connecting member 4 and remove it from the first connecting 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 take other shapes, and may also be formed separately from the first connecting portion 42 and fixedly connected thereto. As shown in fig. 3, a first fixing block mounting groove 22 is provided at least partially in the circumferential direction on the 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 first circumferential fixing block 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 block 2 is embedded in the first fixing block mounting groove, so as to achieve stable connection between the first fixing block 2 and the first bearing portion 41.
As shown in fig. 6, 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 block 2 with wider width so as to realize better fixing effect of the first fixing block 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 w5 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 block 2. In this embodiment, as shown in fig. 8, 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 block 2 with a thicker thickness, so as to realize better fixing effect of the first fixing block 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).
In this embodiment, as shown in fig. 2, the second fixing element further comprises a second connecting element 5 for carrying the second fixing block 3, and when the second connecting element 5 is mounted on the intestinal assembly 9, the second connecting element 5 surrounds the inner surface of the protective sleeve 1 to form a connecting ring structure, so that a circumferential fixing is formed on the protective sleeve 1 together with the first fixing block 2. 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. 2, 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 fixed blocks 3, and bear the corresponding second fixed blocks 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.
As shown in fig. 5, the second bearing portion 51 is integrally formed with the second connecting portion 52, and the second bearing portion 51 is a hollow annular structure surrounding the second fixing block 3, that is, a mounting hole is provided in the second bearing portion 51, 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 from the second 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 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. 5, a second fixing block mounting groove 32 is provided at least partially in the side surface of the second fixing block 3, and the annular second bearing portion 51 is fitted into the second fixing block mounting groove 32. In another alternative embodiment, a second fixing block mounting groove in the circumferential direction of the second fixing block may be at least partially provided on the inner side of the edge of the hollow annular structure of the second bearing portion 51, and the side surface of the second fixing block 3 is embedded in the second fixing block mounting groove, so as to achieve stable connection between the second fixing block 3 and the second bearing portion 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.
As shown in fig. 7, in this embodiment, the width w3 of the second bearing portion 51 is larger than the width w4 of the second connecting portion 52. Therefore, the second bearing part 51 can bear the second fixing block 3 with wider width so as to realize better fixing effect of the second fixing block 3 on the protective sleeve 1, and the width of the second connecting part 52 is smaller, so that the elastic deformation capability of the second connecting part 52 can be improved, and the peristaltic influence on intestinal tissues 9 is greatly reduced. Further, the width w6 of the annular wall of the second bearing portion 51 may be greater than the width w4 of the second connecting portion 42, so as to improve the connection stability between the second bearing portion 51 and the second fixing block 3. In this embodiment, as shown in fig. 8, 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 block 3 with thicker thickness, so as to realize better fixing effect of the second fixing block 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.
Fig. 9 is a schematic view of an application of the stoma protection component according to the second embodiment of the invention to an intestinal component. In this embodiment, the first fixing member does not include the first connecting member therein, and the plurality of first fixing blocks 2 are disposed at intervals from each other and independent from each other. The second fixing part does not include a second connector therein, and a plurality of second fixing blocks 3 are disposed at intervals from each other and independent from each other. The position of the first fixed block 2 corresponds to the position of the second fixed block 3. At the time of operation, the second fixing blocks 3 may be first fixed to the inner surface of the protective sheath 1, and then the first fixing blocks 2 may be placed one by one at positions corresponding to the second fixing blocks 3, to achieve the relative fixation of the first fixing blocks 2 and the second fixing blocks 3. This construction eliminates the construction of the first connector as compared to the first embodiment, and the assembly has fewer parts. At the location where the first fixation block 2 is not provided, the assembly does not exert any pressure on the tissue, nor does it affect the normal blood supply to the stoma. And the circumferential distance between the first fixed blocks 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.
As shown in fig. 10, the second fixing block 3 is shown in the second embodiment in cooperation with the protective sheath 1. The inner surface of the protective cover 1 is further provided with mounting grooves corresponding to the second fixing blocks 3 one by one so as to better realize the positioning of the second fixing blocks 3 on the inner surface of the protective cover 1. The second fixing block 3 is embedded in the corresponding mounting groove, so that the second fixing block 3 and the inner surface of the protective sleeve 1 can be detachably fixed. The mounting groove in fig. 10 is a recess 12 recessed outward from the surface of the protective cover 1. In an alternative embodiment, the mounting groove may also be a groove surrounded by an annular mounting member 13 protruding from the inner surface of the protective sheath 1. The second fixing block 3 may be pre-inserted into an installation groove formed in the inner surface of the protective cover 1 before the operation, and then the protective cover 1 and the second fixing block 3 are integrally put into the intestinal tissue 9. The second fixing block 3 may not be mounted in advance, but the second fixing block 3 may be fitted into the corresponding mounting groove during the operation. The second fixing block 3 and the mounting groove may be in interference fit.
In another alternative embodiment, the first fixing part may also comprise the first fixing block 2 and the first connecting piece 4, and the second fixing part may comprise only the second fixing block 3 and not the second connecting piece 5. In a further alternative embodiment, the first fixing part may also comprise only the first fixing block 2 and not the first connecting piece 4, and the second fixing part may comprise the second fixing block 3 and the second connecting piece 5.
Fig. 11 is a schematic view of a stoma protection component according to a third embodiment of the present invention applied to an intestinal component. In this embodiment, only the first fixing block 2 is provided with external magnetic particles 6, the second fixing block 3 may be made of a material which is not magnetic but attracted by a magnet, such as a magneto-philic metal such as iron, nickel, cobalt, or an alloy thereof, and the second fixing block 3 may be made of a material which is magnetic, such as a magnet, and the magnetism is opposite to that of the external magnetic particles 6 of the first fixing block 2, and the magnetic attraction between the first fixing block 2 and the second fixing block 3 may be realized, so that the protective cover 1 is fixed at a desired position.
Fig. 12 is a schematic view of a stoma protection component according to a fourth embodiment of the present invention applied to an intestinal component. In this embodiment, only the second fixing block 3 has the internal magnetic particles 7 distributed therein, the first fixing block 2 may be made of a material which is not magnetic by itself but can be attracted by a magnet, such as a magneto-philic metal of iron, nickel, cobalt, etc., and an alloy thereof, etc., the first fixing block 2 may also be made of a material which is magnetic by itself, such as a magnet, etc., and the magnetism is opposite to that of the internal magnetic particles 7 of the second fixing block 3, and the magnetic attraction between the first fixing block 2 and the second fixing block 3 may be achieved as well, thereby fixing the protective cover 1 in a desired position.
Fig. 13 is a schematic view of a stoma protection component according to a fifth embodiment of the invention applied to an intestinal component. In this embodiment, the magnetic particles are distributed in part of the first fixed blocks 2, and the first fixed blocks 2 not having magnetic particles may be made of a material which is not magnetic but attracted to a magnet, for example, a magnetically attracting metal such as iron, nickel, cobalt, or an alloy thereof, or a material which is magnetic, for example, a magnet. Similarly, the second fixing blocks 3 in which magnetic particles are distributed in part of the second fixing blocks 3 and in which magnetic particles are not distributed may be made of a material which is not magnetic but attracted to a magnet, for example, a magnetophilic metal such as iron, nickel, cobalt, or an alloy thereof, or a material which is magnetic in itself, for example, a magnet, or the like.
Fig. 14 is a schematic view of a stoma protection component according to a sixth embodiment of the invention applied to an intestinal component. In this embodiment, the first fixing element comprises a first fixing block 2 and a first connecting piece 4, and the second fixing element comprises a second magnetic particle coating 33 formed by the inner magnetic particles 7, and the second magnetic particle coating 33 is directly coated on the inner surface of the protective sleeve 1. The position of the first fixed block 2 corresponds to the position of the second magnetic particle coating 33. The first fixing block 2 may be formed by coating with a first magnetic particle or internally doping with magnetic particles, or may be formed by a material which is not magnetic but attracted by a magnet, for example, a magnetically attracting metal such as iron, nickel, cobalt, or an alloy thereof, or may be formed by a material which is magnetic, for example, a magnet. Thus, the first and second fixation members can also achieve magnetic attraction, thereby securing the protective sheath 1 in the desired position and not affecting normal peristalsis of the intestine and blood supply around the tissue.
Fig. 15 is a schematic view of an application of a stoma protection component according to a seventh embodiment of the invention to an intestinal component. In this embodiment, the first fixing means comprises a first connector 4 surrounding the outer wall of the intestinal assembly 9, the surface of the first connector 4 being coated with a third magnetic particle coating formed by external magnetic particles 6 or the inside of the first connector 4 being doped with external magnetic particles 6. The second fixing part may adopt the structure of the second fixing part in any embodiment, that is, the structure of the second fixing block 3, or the structure of the second fixing block 3 and the second connecting piece 5, or the structure of directly coating the second magnetic particle coating. The second fixed block 3 may be magnetic or non-magnetic, and may be a structure in which magnetic particles are distributed or a structure in which it is magnetic itself. Furthermore, the second fixing part may also take a structure similar to the first fixing part of this embodiment, i.e. the second fixing part comprises a second connection piece 5 surrounding the outer wall of the intestinal assembly 9, the surface of the second connection piece 5 being coated with a fourth magnetic particle coating or the interior of the second connection piece 5 being doped with magnetic particles.
In another alternative embodiment, the second fixing means may also comprise a second connection piece 5 surrounding the outer wall of the intestinal assembly 9, the surface of the second connection piece 5 being coated with a fourth magnetic particle coating or the interior of the second connection piece 5 being doped with magnetic particles. Meanwhile, the first fixing part may adopt the structure of the first fixing part in any of the above embodiments, that is, the structure of the first fixing block 2, or the structure of the first fixing block 2 plus the first connecting piece 4. The first fixed block 2 may be magnetic or non-magnetic, and may be a structure in which magnetic particles are distributed or a structure in which it is magnetic itself.
As shown in fig. 16, the first connector 4 is installed and removed for the convenience of the first connector. The first connecting member 4 may further be provided with a connecting structure, at which 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 at the connecting structure to be separated from the outer wall of the intestinal tissue 9. The connection structure shown in fig. 16 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.
As shown in fig. 17 and 18, the stoma protection component according to the eighth embodiment and the stoma protection component according to the ninth embodiment of the invention are respectively applied to the intestinal tract component. In both embodiments, the stoma protection component may be used for high-end stoma protection of the intestinal tract. A first fixing part is arranged on the outer wall of the intestinal tissue 9 at the upstream side of the anastomotic stoma, a second fixing part is correspondingly arranged in the protective sleeve 1, another first fixing part is arranged on the outer wall of the intestinal tissue 9 at the downstream side of the anastomotic stoma, and another second fixing part 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. Two embodiments of the fixing sleeve are shown in fig. 17 and 18. In other alternative embodiments, the first fixing component and the second fixing component upstream of the anastomotic orifice may adopt the structures of the fixing components of any embodiment, which are all within the scope of the present invention.
The materials of all the embodiments of the anastomotic stoma protection component based on the magnetic particles provided by the invention are all materials meeting the biocompatibility. In the above embodiments, one or more of the first fixing block 2, the second fixing block 3, the first connecting member 4 and the second connecting member 5 may be at least partially made of a bioabsorbable material, and may be naturally absorbed after a period of time in a human body without being manually removed after operation. In the case where the first fixed block 2 is a magnetic fixed block, the first fixed block 2 may be a bio-absorbable magnetic fixed block. In the case where the second fixed block 3 is a magnetic fixed block, the second fixed block 3 may be a bio-absorbable magnetic fixed block. The first fixing block 2 and the second fixing block 3 may also be partially made of a bioabsorbable iron-based material. The first connecting member 4 may be partially or entirely 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. The second connecting piece 5 may also be made of a partially or completely bioabsorbable material, for example, a bioabsorbable medical film, and has flexibility or elasticity while ensuring a certain strength. Thereby omitting the step of removing the second connecting member 5 after operation.
The magnetic particle-based anastomotic stoma protection component 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 contents to pass through, and magnetic particles are distributed on the first attraction part and/or the second attraction part, so that magnetic attraction can be realized between the first attraction part and the second attraction part, and the protective sleeve is fixed at a required position; only the magnetic adsorption position between the first suction part and the second suction part in the component is relatively fixed, so that sufficient circumferential expansion space is provided for tubular 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 component 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.
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. A magnetic particle-based stoma protection component for stoma protection of tubular tissue, the component comprising:
The protective sleeve is positioned in the tubular tissue at a position corresponding to the anastomotic stoma;
The first fixing component is arranged on the outer wall of the tubular tissue, a plurality of first suction parts are arranged along the circumferential direction of the tubular tissue, and the first suction parts form a circumferentially telescopic structure;
The second fixing part is arranged on the inner surface of the protective sleeve at a position corresponding to the first fixing part, a plurality of second suction parts are arranged on the second fixing part, the second suction parts are arranged along the circumferential direction of the tubular tissue, and the second suction parts form a circumferentially telescopic structure;
The first attraction part and the second attraction part are mutually fixed through magnetic attraction, and magnetic particles are distributed in at least one first attraction part and/or at least one second attraction part.
2. The magnetic particle-based stoma protection assembly of claim 1, wherein magnetic particles are distributed in the first attraction portion and the second attraction portion, the magnetic particles in the first attraction portion are the same in magnetic properties, the magnetic particles in the second attraction portion are the same in magnetic properties, and the magnetic particles in the first attraction portion and the magnetic particles in the second attraction portion are opposite in magnetic properties.
3. The magnetic particle-based stoma protection assembly of claim 1, wherein a position of the first suction portion corresponds to a position of the second suction portion, and a corresponding set of the first suction portion and the second suction portion each have magnetism, or one has magnetism, and the other does not have magnetism but can be magnetically attracted.
4. The magnetic particle-based stoma protection assembly of claim 1, wherein the plurality of first suction portions are disposed in spaced relation to one another; the plurality of second suction portions corresponds to the plurality of first suction portions.
5. The magnetic particle-based stoma protection assembly of claim 1, wherein the first attraction portion comprises a first fixed block, a surface of the first fixed block being coated with a first magnetic particle coating or an interior of the first fixed block being doped with magnetic particles.
6. The magnetic particle-based stoma protection assembly of claim 5, wherein the first fixation component further comprises a first connector carrying the first fixation block, the first connector encircling an outer wall of the tubular tissue, the first connector being circumferentially stretchable.
7. The magnetic particle-based stoma protection assembly of claim 1, wherein the first fixation component comprises a first connector surrounding an outer wall of the tubular tissue, the first connector having the first suction disposed therein, a surface of the first suction being coated with a third magnetic particle coating or an interior of the first connector being doped with magnetic particles.
8. The magnetic particle-based stoma protection assembly according to claim 6 or 7, wherein the first connector is provided with a connection structure, the first connector being connectable around the outer wall of the tubular tissue at the connection structure or being disconnectable from the outer wall of the tubular tissue at the connection structure.
9. The magnetic particle-based stoma protection assembly of claim 6 or 7, wherein the first connector is of a bioabsorbable material.
10. The magnetic particle-based stoma protection assembly of claim 1, wherein the second attraction includes a second magnetic particle coating applied to an inner surface of the protective sheath.
11. The magnetic particle-based stoma protection assembly of claim 1, wherein the second suction portion comprises a second fixed block, a surface of the second fixed block being coated with a second magnetic particle coating or an interior of the second fixed block being doped with magnetic particles.
12. The magnetic particle-based stoma protection assembly of claim 11, wherein the second fixation component further comprises a second connector carrying the second fixation block, the second connector being located on an inner surface of the protective sheath.
13. The magnetic particle-based stoma protection assembly of claim 1, wherein the second fixation component comprises a second connector located at an outer wall of the tubular tissue, the second connector having the second suction portion disposed therein, a surface of the second suction portion being coated with a fourth magnetic particle coating or an interior of the second connector being doped with magnetic particles.
14. The magnetic particle-based stoma protection assembly of claim 12 or 13, wherein the second connector is of a bioabsorbable material.
15. The magnetic particle-based stoma protection assembly of claim 1, wherein the first and second securing members are located on an upstream side of the stoma.
16. The magnetic particle-based stoma protection assembly of claim 15, 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 first and second securing members being disposed between the stoma and the support.
17. The magnetic particle-based stoma protection assembly of claim 1, comprising two of the first and second fixation members, one of the first and second fixation members being disposed on an upstream side of the stoma, the other of the first and second fixation members being disposed on a downstream side of the stoma.
18. The magnetic particle-based stoma protection assembly of claim 1, wherein the first fixation component comprises a plurality of first fixation blocks and the second fixation component comprises a plurality of second fixation blocks;
at least one of the first and/or second fixation blocks is made of a bioabsorbable material.
19. The magnetic particle-based stoma protection assembly of claim 18, wherein at least one of the first and/or second fixation blocks is/are of a bio-absorbable magnetic material.
20. The magnetic particle-based stoma protection assembly of claim 1, wherein the first fixation component comprises at least a first fixation block and a first connector carrying the first fixation block; the second fixing part comprises at least one second fixing block and a second connecting piece for bearing the second fixing block;
The circumference of the first fixed block is at least partially provided with a fixed block mounting groove, the inner circumference of the first connecting piece is embedded with the fixed block mounting groove, or the inner circumference of the first connecting piece is at least partially provided with a fixed block mounting groove, and the first fixed block is embedded with the fixed block mounting groove;
The circumference of second fixed block is equipped with the fixed block mounting groove at least partially, the inner periphery of second connecting piece with the fixed block mounting groove gomphosis, perhaps the inner periphery of second connecting piece is equipped with the fixed block mounting groove at least partially, the second fixed block with the fixed block mounting groove gomphosis.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011314455.2A CN114515200B (en) | 2020-11-20 | 2020-11-20 | Magnetic particle-based anastomotic stoma protection assembly |
| CA3202598A CA3202598A1 (en) | 2020-11-20 | 2021-11-19 | Anastomosis protection device |
| KR1020237020772A KR20230110327A (en) | 2020-11-20 | 2021-11-19 | anastomosis protector |
| JP2023530514A JP2023550454A (en) | 2020-11-20 | 2021-11-19 | Anastomotic mouth protection device |
| EP21894000.5A EP4248903A1 (en) | 2020-11-20 | 2021-11-19 | Anastomosis protection device |
| US18/253,315 US20240023964A1 (en) | 2020-11-20 | 2021-11-19 | Anastomosis protection device |
| PCT/CN2021/131646 WO2022105853A1 (en) | 2020-11-20 | 2021-11-19 | Anastomosis protection device |
| AU2021383888A AU2021383888A1 (en) | 2020-11-20 | 2021-11-19 | Anastomosis protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011314455.2A CN114515200B (en) | 2020-11-20 | 2020-11-20 | Magnetic particle-based anastomotic stoma protection assembly |
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| Publication Number | Publication Date |
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| CN114515200A CN114515200A (en) | 2022-05-20 |
| CN114515200B true CN114515200B (en) | 2024-06-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214231551U (en) * | 2020-11-20 | 2021-09-21 | 天臣国际医疗科技股份有限公司 | Anastomotic stoma protection component based on magnetic particles |
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| CN114515200A (en) | 2022-05-20 |
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