CN214231419U

CN214231419U - Anastomotic stoma protection device

Info

Publication number: CN214231419U
Application number: CN202022714232.7U
Authority: CN
Inventors: 单腾; 陈望东; 曹元阳
Original assignee: Suzhou Tianchen International Medical Technology Co Ltd
Current assignee: Touchstone International Medical Science Co Ltd; Suzhou Tianchen International Medical Technology Co Ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-09-21
Anticipated expiration: 2030-11-20

Abstract

The utility model provides an identical mouthful protection device, include: the protective sleeve is positioned in the tubular tissue at a position corresponding to the anastomotic stoma; a first fixation assembly disposed on an outer wall of the tubular tissue, the first fixation assembly including an electromagnetic generating component; the power supply assembly is electrically connected with the electromagnetic generating component and used for supplying power to the electromagnetic generating component; and the second fixing component is arranged on the inner surface of the protective sleeve, and the second fixing component and the first fixing component are relatively fixed through magnetic adsorption. The utility model discloses an electromagnetism takes place the magnetic adsorption of part and inside fixed subassembly, fixes the protective sheath that will protect the anastomotic stoma in needs position, can not obstruct the normal wriggling of tubulose tissue to provide the flexible space of circumference for the tubulose tissue, guarantee the normal blood supply in near anastomotic stoma.

Description

Anastomotic stoma protection device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to anastomotic stoma protection device.

Background

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

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

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, the utility model aims to provide an coincide mouthful protection device, through the magnetism absorption of electromagnetism emergence part and the fixed subassembly in inside, will protect the protective sheath of coinciding the mouth to fix in needs position.

An embodiment of the utility model provides an identical mouthful protection device, include:

the protective sleeve is positioned in the tubular tissue at a position corresponding to the anastomotic stoma;

a first fixation assembly disposed on an outer wall of the tubular tissue, the first fixation assembly including an electromagnetic generating component;

the power supply assembly is electrically connected with the electromagnetic generating component and used for supplying power to the electromagnetic generating component; and

the second fixing component is arranged on the inner surface of the protective sleeve, and the second fixing component and the electromagnetic generating component of the first fixing component are relatively fixed through magnetic adsorption.

In some embodiments, the electromagnetic generating component comprises an electromagnet.

In some embodiments, the first fixing assembly comprises a plurality of electromagnetic generating components arranged at intervals, and the plurality of electromagnetic generating components are sequentially arranged along the circumference of the tubular tissue.

In some embodiments, the second fixing assembly comprises a plurality of internal fixing blocks arranged at intervals, and the internal fixing blocks are magnetic elements or magnetically attractable structural elements.

In some embodiments, the power supply assembly includes a power supply harness that surrounds the outer wall of the tubular tissue and is electrically connected to the electromagnetic generating component.

In some embodiments, the power supply harness includes a plurality of harness carrying portions that surround the outside of the electromagnetic generating component, and a plurality of harness connecting portions that are connected between two adjacent harness carrying portions, the harness carrying portions and the harness connecting portions combining to form a ring-like structure that surrounds the outer wall of the tubular tissue.

In some embodiments, the power supply harness further includes an extension portion, one end of the extension portion is connected to the harness connection portion, and the other end of the extension portion extends out of the body.

In some embodiments, a side surface of the electromagnetic generating member is provided with a first mounting groove in a circumferential direction in which a harness bearing portion of the power supply harness is embedded; or the like, or, alternatively,

the inner side surface of the wire harness bearing part of the power supply wire harness is provided with a first mounting groove along the circumferential direction, and the electromagnetic generating component is embedded in the first mounting groove.

In some embodiments, the width of the wire harness carrying part is greater than the width of the wire harness connecting part, and/or the thickness of the wire harness carrying part is greater than the thickness of the wire harness connecting part.

In some embodiments, the power supply harness is a resilient harness.

In some embodiments, the elasticity of the wire harness connection part is greater than the elasticity of the wire harness bearing part.

In some embodiments, the first fixing assembly further comprises a first connecting member surrounding the outer wall of the tubular tissue, the first connecting member comprises a first bearing portion bearing the electromagnetic generating component and a first connecting portion connected between two adjacent first bearing portions, and the first bearing portions surround the outer portion of the wire harness bearing portion.

In some embodiments, the power supply harness includes a first connection structure at which the power supply harness may be connected to encircle the outer wall of the tubular tissue or disconnected from the outer wall of the tubular tissue.

In some embodiments, the first fixation assembly further comprises a first connector surrounding the outer wall of the tubular tissue, the first connector being connected to the electromagnetic generating component.

In some embodiments, the first connector includes a second connection structure, and the first connector is connectable at the second connection structure to encircle the outer wall of the tubular tissue or disconnectable at the second connection structure from the outer wall of the tubular tissue.

In some embodiments, the first securing assembly includes an internal securing block and a second connector carrying the internal securing block, the second connector being located on an inner surface of the protective casing.

In some embodiments, a bioabsorbable material is used at least in part in the first connector, the second connector and/or the internal fixation block.

In some embodiments, the first stationary assembly further comprises a first connector carrying the electromagnetic generating component; and/or the second fixing component comprises an internal fixing block and a second connecting piece for bearing the internal fixing block;

the electromagnetic generating component is at least partially provided with a first mounting groove in the circumferential direction, the inner periphery of the first connecting piece is embedded with the first mounting groove, or the inner periphery of the first connecting piece is at least partially provided with a first mounting groove, and the electromagnetic generating component is embedded with the first mounting groove;

the circumference of inside fixed block at least part is equipped with the second mounting groove, the internal periphery of second connecting piece with second mounting groove gomphosis, or the internal periphery of second connecting piece at least part is equipped with the second mounting groove, inside fixed block with second mounting groove gomphosis.

In some embodiments, an end of the protective sheath upstream of the stoma is provided with a support portion that is retractable in a radial direction of the protective sheath, the first and second fixation assemblies being disposed between the stoma and the support portion.

In some embodiments, the first and second fixation assemblies are disposed upstream of the stoma; or

The anastomotic stoma protection device comprises two first fixing assemblies and two second fixing assemblies, wherein one first fixing assembly and one second fixing assembly are arranged on one side of the upstream of the anastomotic stoma, and the other first fixing assembly and the other second fixing assembly are arranged on one side of the downstream of the anastomotic stoma.

The utility model provides an identical mouthful protection device has following advantage:

the utility model protects the inner surface of the anastomotic stoma through the protective sleeve, leads the tubular tissue content to pass through without polluting the anastomotic stoma, and fixes the protective sleeve at the required position through the magnetic adsorption between the electromagnetic generating component of the first fixing component and the second fixing component; only the magnetic adsorption position between the electromagnetic generation component and the second fixing component in the device is relatively fixed, normal peristalsis of the tubular tissue is not hindered, a circumferential telescopic space is provided for the tubular tissue, and normal blood supply near an anastomotic stoma is guaranteed. By arranging the electromagnetic generating component and the power supply assembly, the magnetism in the electromagnetic generating component can be flexibly controlled by controlling the on-off of power supply, and the magnetism in the electromagnetic generating component can be flexibly controlled by controlling the magnitude of power supply current. The utility model discloses an identical mouthful of tubular tissue that protection device used can be the intestinal, also can be other tubular tissues in the human body, for example the tubular tissue of other positions in the alimentary canal etc..

Drawings

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

Fig. 1 is a schematic structural view of an anastomotic stoma protecting device according to a first embodiment of the present invention, which is arranged in intestinal tract tissue;

fig. 2 is a schematic structural view of an anastomotic stoma protector according to a first embodiment of the present invention;

fig. 3 is an exploded view of the anastomotic stoma protector according to the first embodiment of the present invention;

fig. 4 is a schematic view of the first fixing assembly and the power supply assembly of the first embodiment of the present invention;

fig. 5 is a schematic view of the first connector of the first embodiment of the present invention disconnected;

fig. 6 is a schematic diagram of the disconnection of the power supply harness according to the first embodiment of the present invention;

fig. 7 is a front view of a power supply harness according to a first embodiment of the present invention;

fig. 8 is a side view of a power supply harness according to a first embodiment of the present invention;

fig. 9 is a front view of a first connecting member according to a first embodiment of the present invention;

fig. 10 is a side view of a first connector of a first embodiment of the invention;

fig. 11 is a schematic structural view of an anastomotic stoma protector according to a second embodiment of the invention;

fig. 12 is a schematic structural view of an anastomotic stoma protector according to a third embodiment of the invention arranged in intestinal tract tissue;

fig. 13 is a schematic structural view of an anastomotic stoma protector according to a fourth embodiment of the invention arranged in intestinal tract tissue;

fig. 14 is a schematic structural view of an anastomotic stoma protector according to a fourth embodiment of the invention, arranged in intestinal tract tissue;

fig. 15 is a schematic view of the engagement of the internal fixing block and the second connecting member according to the fourth embodiment of the present invention;

fig. 15 is a front view of a second connector according to a fourth embodiment of the present invention;

fig. 16 is a side view of a second connector of a fourth embodiment of the invention;

fig. 17 is a schematic structural view of an anastomotic stoma protector according to a fifth embodiment of the invention, arranged in intestinal tract tissue;

fig. 18 is a schematic structural view of an anastomotic stoma protector according to a sixth embodiment of the present invention, which is installed in intestinal tract tissue.

Reference numerals:

1 protective sleeve 44 connecting groove

11 support part 5 second connecting piece

12 groove 51 second bearing part

2 second connection part of electromagnet 52

21 electromagnet fillet 6 supply pencil

22 first mounting groove 61 harness carrying part

3 internal fixing block 62 harness connection part

31 inner fixed block fillet 63 extension

32 second mounting groove 64 connection terminal

4 first connecting part 7 power supply

41 first carrier part 8 magnetic particle coating

42 first connection 9 intestinal tissue

43 connecting projection

Detailed Description

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

The utility model provides an identical mouthful protection device, the device includes the fixed subassembly of protective sheath, first fixed subassembly, second and power supply unit spare. The protective sleeve is positioned in the tubular tissue and corresponds to the anastomotic stoma, plays a role in protecting the inner surface of the anastomotic stoma, and cannot pollute the anastomotic stoma in the process of guiding the contents of the tubular tissue to pass through. The first fixing component is arranged on the outer wall of the tubular tissue and comprises an electromagnetic generating component which can generate magnetism when power supply current is input. The power supply assembly is electrically connected with the electromagnetic generating component and used for supplying power to the electromagnetic generating component. The second fixing component is arranged on the inner surface of the protective sleeve, the second fixing component has magnetism or can be attracted by magnetism, and is relatively fixed with the electromagnetic generating component through magnetic adsorption, so that the protective sleeve is fixed at a required position through the magnetic adsorption between the first fixing component and the second fixing component.

Because only the magnetic adsorption position between the first fixing component and the second fixing component in the anastomotic stoma protection device is relatively fixed, the normal peristalsis of the tubular tissue cannot be hindered, a circumferential telescopic space is provided for the tubular tissue, and the normal blood supply near the anastomotic stoma is ensured. The first fixing assembly comprises an electromagnetic generating component which can be electrified and has magnetism, the magnetism in the electromagnetic generating component can be flexibly controlled by controlling the on-off of power supply, and the magnetism in the electromagnetic generating component can be flexibly controlled by controlling the magnitude of power supply current and the number of winding turns of the electromagnetic generating component.

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

As shown in fig. 1 to 8, it is the schematic structural diagram of the utility model that the anastomotic stoma protection device of the first embodiment is applied to the intestinal tract tissue 9. As shown in fig. 1 to 4, the anastomotic stoma protecting device comprises: the protective sleeve 1 is positioned in the intestinal tissue 9 and corresponds to the anastomotic stoma, plays a role in protecting the inner surface of the anastomotic stoma, and cannot pollute the anastomotic stoma in the process of guiding the intestinal contents to pass through; a first fixing component arranged on the outer wall of the intestinal tract tissue 9, wherein the first fixing component comprises an electromagnetic generating part; the power supply assembly is electrically connected with the electromagnetic generating component and used for supplying power to the electromagnetic generating component; and the second fixing component is arranged on the inner surface of the protective sleeve 1, and the second fixing component and the electromagnetic generating component of the first fixing component are relatively fixed through magnetic adsorption.

Because only the magnetic adsorption position between the first fixing component and the second fixing component in the device is relatively fixed, normal peristalsis of the tubular tissue is not hindered, a circumferential telescopic space is provided for the tubular tissue, and normal blood supply near an anastomotic stoma is ensured. The electromagnetic generating component in the first stationary assembly may be magnetic when powered by the power supply assembly. Therefore, the magnetism in the electromagnetic generating component can be flexibly controlled by controlling the on-off of the power supply, and the magnetism in the electromagnetic generating component can be flexibly controlled by controlling the magnitude of the power supply current.

In this embodiment, the electromagnetic generating means is an electromagnet 2. The electromagnet is a structure which generates electromagnetism when being electrified, a conductive winding matched with the power of the electromagnet is wound outside the iron core, and when the electromagnet is electrified, the winding which is electrified with current has magnetism like a magnet. Therefore, in this embodiment, the magnetic force generated by the electromagnet 2 after the current is applied can also be adjusted by controlling the number of turns of the coil in the electromagnet 2. In other alternative embodiments, the electromagnetic generating component may also adopt other structures, such as an electromagnetic coil, etc., and all fall within the protection scope of the present invention.

As shown in fig. 1 to 4, in this embodiment, the first fixing assembly includes a plurality of electromagnets 2 disposed at intervals, and the plurality of electromagnets 2 are sequentially arranged along the circumferential direction of the intestinal tissue 9 to form a uniform and stable fixing for the protective sheath 1. The second fixing component comprises internal fixing blocks 3 which correspond to the electromagnets 2 one to one. The inner fixing block 3 may be made of a material which is not magnetic but can be attracted by a magnet, such as a magnetically attractive metal, such as iron, nickel, cobalt, and alloys thereof. Alternatively, the internal fixing block 3 may be made of a magnetic material with magnetism, such as a magnet. In this embodiment, a plurality of electromagnets 2 are spaced apart from each other, and a plurality of internal fixing blocks 3 are spaced apart from each other. The quantity of electro-magnet 2 and inside fixed block 3 also can select the setting as required to can form the relation of one-to-one between electro-magnet 2 and the inside fixed block 3, a to many relation, perhaps many to one relation etc. all belong to within the scope of protection of the utility model. In other alternative embodiments, 1 electromagnet 2 and/or 1 internal holding block 3 may also be provided.

As shown in fig. 2, the protective sheath 1 is a tubular protective sheath, which can protect the anastomotic stoma circumferentially. The protective sheath 1 may be a thin-walled flexible film sleeve, such as a rubber film sleeve, a silicone film sleeve, etc., but the present invention is not limited thereto. In other alternative embodiments, the protective sheath 1 may also take other shapes, and cover the inner wall of the anastomotic orifice in whole or in part, all falling within the scope of the present invention.

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 cannot move to the downstream side of the anastomotic stoma and lose the protection of the anastomotic stoma. The utility model discloses in, the upper reaches of coincide mouthful refer to and use the orientation that the intestinal content removed along the intestinal as the reference, and the intestinal content removes along intestinal from the one side of the low reaches of coinciding mouthful of an upper reaches side direction of coinciding mouthful. When the anastomotic stoma protection device is applied to the lower position of the intestinal tract, the protective sleeve 1 guides excrement to be discharged along the intestinal tract and moves from the upstream side of the anastomotic stoma to the downstream side of the anastomotic stoma.

As shown in fig. 2 and 3, a support portion 11 is provided at an end of the protective sheath 1 upstream of the anastomotic orifice, and the support portion 11 is retractable in a radial direction of the protective sheath 1. When the supporting part 11 contracts in the radial direction, the protective sleeve 1 can be integrally placed into the intestinal tract tissue 9 or taken out from the intestinal tract tissue 9, and after the protective sleeve 1 is placed in place, the supporting part 11 expands in the radial direction to form a support for the protective sleeve 1 and maintain the position of the protective sleeve 1. The support portion 11 may be in the form of an inflatable and deflatable annular bladder, in a radially expanded state when inflated and in a radially contracted state when deflated. The support portion 11 may be formed of another radially-retractable spring or a radially-movable slider structure, and the outer diameter of the support portion 11 may be increased or decreased. The first fixing component and the second fixing component are arranged between the anastomotic stoma and the supporting part 11, and the protective sleeve 1 can be better kept at the anastomotic stoma position through matching with the supporting part 11.

In this embodiment, as shown in fig. 1, the power supply assembly includes a power supply wire bundle 6, and the power supply wire bundle 6 surrounds the outer wall of the intestinal tissue 9 and is electrically connected to each of the electromagnets 2. The power supply harness 6 may be electrically connected to an external power source 7, the external power source 7 supplying power to the conductive windings of the electromagnet 2 through the power supply harness 6, so that the electromagnet 2 generates magnetism. The electromagnet 2 may have a structure that it is magnetized when it is energized and demagnetized quickly when it is de-energized. When the electromagnet 2 needs to be fixed to the outer wall of the intestinal tissue 9, the external power supply 7 supplies electricity to the power supply harness 6, so that the electromagnet 2 and the internal fixing block 3 are magnetically attracted. During use, the power supply harness 6 continuously supplies power to the electromagnet 2. When the internal fixing block 3 is a magnetic block having magnetism, the magnetism of the electromagnet 2 is opposite to that of the internal fixing block 3. When the electromagnet 2 needs to be removed from the outer wall of the intestinal tissue 9, the power supply from the external power source 7 to the power supply harness 6 can be cut off, so that the electromagnet 2 loses its magnetism. By controlling the magnitude of the supply current in the power supply harness 6, the magnitude of the magnetic strength of the electromagnet 2 can also be controlled. In other alternative embodiments, the electromagnet 2 may be configured to be slowly demagnetized after power is turned off, i.e., to be magnetized for a certain period of time after power is turned on and then turned off.

As shown in fig. 4, the power supply harness 6 includes a plurality of harness carrying portions 61 and a plurality of harness connecting portions 62, the harness carrying portions 61 are annular hollow structures and surround the outside of the electromagnet 2, the harness connecting portions 62 are connected between two adjacent harness carrying portions 61, and the harness carrying portions 61 and the harness connecting portions 62 are combined to form an annular structure surrounding the outer wall of the intestinal tissue 9. As shown in fig. 4, a first mounting groove 22 is provided along a circumferential direction on a side surface of the electromagnet 2, and a harness receiving portion 61 of the power supply harness 6 is fitted into the first mounting groove 22, thereby ensuring stable connection between the electromagnet 2 and the power supply harness 6. In another alternative embodiment, a first mounting groove along the circumferential direction may be provided on the inner side surface of the harness support portion 61 of the power supply harness 6, and the electromagnet 2 may be embedded in the first mounting groove. In order to facilitate the installation and removal of the electromagnet 2 from the power supply harness 6, the respective side walls of the electromagnet 2, which are attached to the inner wall of the installation hole, have rounded corner 21 structures.

In this embodiment, the power supply wire bundle 6 is an elastic wire bundle 6, and at least the position of the wire bundle connecting portion 62 is elastic, so that it can be elastically deformed according to the peristalsis of the intestinal tract without applying a restriction pressure to the intestinal tract, and a telescopic movement space is provided for the intestinal tract. When the harness carrying part 61 and the harness connecting part 62 are both elastic, the elasticity of the harness connecting part 62 is preferably greater than that of the harness carrying part 61, the harness carrying part 61 can be connected with the electromagnet 2 more stably, the elastic deformation force of the harness connecting part 62 is better, and a better circumferential expansion space can be provided.

As shown in fig. 4, the power supply harness 6 further includes an extension portion 63, one end of the extension portion 63 is connected to the harness connection portion 62, the other end of the extension portion 63 extends out of the body, and the extension portion 63 can be electrically connected to an external power supply.

In this embodiment, in order to facilitate the installation and removal of the power supply harness 6 at the intestinal tissue 9, the power supply harness 6 includes a first connecting structure. As shown in fig. 6, when the power supply harness 6 is installed at the intestinal tissue 9, the power supply harness 6 may be connected at the first connecting structure to surround the outer wall of the intestinal tissue 9, for example, to form a closed loop structure. The loop structure of the power supply harness 6 may also be broken at the connection end 64, so that the power supply harness 6 may be formed into a non-closed loop or strip structure, and thus may be detached from the outer wall of the intestinal tissue 9. The connection of the connection end point 64 of the power supply harness 6 can be by means of a buckle, a hook, an adhesive, an additional fixing member, and the like, and all belong to the protection scope of the present invention. The power supply harness 6 can be applied in two ways: one way is that the supply cable 6 is initially a closed loop, breaking its first connection structure away from the intestinal tissue 9 when it needs to be removed from the intestinal tissue 9; alternatively, the supply cable bundle 6 is initially in an unsealed configuration, which is mounted on the outside of the intestinal tissue 9 and then closed into a loop at the junction.

As shown in fig. 7, the width w11 of the harness carrying portion 61 may be greater than the width w13 of the harness connecting portion 62. From this, pencil supporting part 61 can bear the electro-magnet 2 of width broad to realize electro-magnet 2 to the better fixed action of protective sheath 1, and pencil connecting portion 62's width is less, can improve pencil connecting portion 62's elastic deformation ability, to intestinal tissue 9's wriggling influence greatly reduced. Further, the width w12 of the annular wall of the harness support portion 61 may be greater than the width w13 of the harness connection portion 62, which improves the connection stability of the harness support portion 61 and the electromagnet 2. As shown in fig. 8, the thickness t11 of the harness carrying portion 61 may be substantially equal to the thickness t12 of the harness connecting portion 62. In another alternative embodiment, the thickness t11 of the harness carrying part 61 may also be greater than the thickness t12 of the harness connecting part 62, so as to carry a thicker electromagnet 2, and further improve the elastic deformation capability of the harness connecting part 62, which may provide a better circumferential expansion and contraction space. The thickness direction corresponds to a radial direction of the power supply harness 6 after forming the annular structure (corresponding to a radial direction of the protective sheath 1).

As shown in fig. 3 and 4, the surface of the electromagnet 2 opposite to the intestinal tissue 9 is an arc-shaped surface, and the shape of the arc-shaped surface substantially conforms to the outer wall of the intestinal tissue 9, so as to achieve better fitting between the electromagnet 2 and the outer wall of the intestinal tissue 9. The inside fixed block 3 with the surface that protective sheath 1 is relative is the arc surface, and the shape on this arc surface suits with the internal surface of protective sheath 1 basically to realize the better laminating of inside fixed block 3 and protective sheath 1's internal surface.

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

In this embodiment, the first fixing assembly further includes a first connecting member 4 surrounding the outer wall of the intestinal tissue 9, the first connecting member 4 includes a first bearing portion 41 bearing the electromagnet 2 and a first connecting portion 42 connected between two adjacent first bearing portions 41, and the first bearing portions 41 surround the outside of the wire harness bearing portion 61. The first connecting piece 4 is elastic and can be elastically deformed along with the peristalsis of the intestinal tract, so that the limiting pressure cannot be applied to the intestinal tract, and 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, silicon rubber, or the like and having a certain elasticity. When the first connection portion 42 and the first bearing portion 41 have elasticity, the elasticity of the first bearing portion 41 may be less than that of the first connection portion 42. So that the first bearing part 41 can better fix the electromagnet 2 and the first connecting part 42 can provide better circumferential telescopic capability.

As shown in fig. 5, the first connector 4 is further provided with a connecting structure, and the first connector 4 can be connected at the second connecting structure to surround the outer wall of the intestinal tissue 9 or disconnected at the second connecting structure to be separated from the outer wall of the intestinal tissue 9. The connection structure shown in fig. 5 includes a connection protrusion 43 and a connection groove 44 respectively disposed at two ends, when the connection protrusion 43 is embedded in 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 strip-shaped or other unclosed shape. In other alternative embodiments, the connecting structure may take other forms, such as providing a connecting ring and a connecting hook at two ends respectively, hooking or separating the two to achieve two states of the first connecting member 4, or providing an adhesive structure at two ends, achieving two states of the first connecting member 4 by adhesion or adhesive separation, and so on.

As shown in fig. 9, the width w21 of the first bearing part 41 is greater than the width w23 of the first connecting part 42. From this, first bearing part 41 can bear the electro-magnet 2 of width broad to realize electro-magnet 2 to the better fixed action of protective sheath 1, and first connecting portion 42's width is less, can improve first connecting portion 42's elastic deformation ability, to intestinal tissue 9's wriggling influence greatly reduced. Further, the width w22 of the annular wall of the first bearing part 41 may be greater than the width w23 of the first connection part 42, so as to improve the connection stability of the first bearing part 41 and the electromagnet 2. In this embodiment, as shown in fig. 10, the thickness t21 of the first bearing part 41 and the thickness t22 of the first connecting part 42 are substantially equal. In another alternative embodiment, the thickness t21 of the first bearing part 41 may be greater than the thickness t22 of the first connecting part 42. Therefore, the first bearing part 41 can bear the electromagnet 2 with a thicker thickness, so that the electromagnet 2 can be better fixed on the protective sleeve 1. In addition, the thickness of the first connecting portion 42 is small, and the elastic deformability of the first connecting portion 42 can be further improved. The thickness direction corresponds to the radial direction of the first connecting element 4 after forming the annular structure (corresponding to the radial direction of the protective sleeve 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 electromagnet 2, that is, a mounting hole is formed in the first bearing portion 41, and the electromagnet 2 is embedded in the mounting hole. In other alternative embodiments, the first bearing portion 41 may have other shapes, and may be formed separately from and fixedly connected to the first connecting portion 42. As shown in fig. 4, a circumferential first mounting groove 22 is at least partially formed in a side surface of the electromagnet 2, and the annular first bearing part 41 is inserted into the first mounting groove 22. In another alternative embodiment, a circumferential mounting groove may be at least partially formed inside an edge of the hollow annular structure of the first bearing part 41, and a side surface of the electromagnet 2 is embedded in the mounting groove, so that the electromagnet 2 and the first bearing part 41 are stably connected. In this embodiment, the first bearing part 41 is located outside the harness bearing part 61 of the power supply harness 6.

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

As shown in fig. 3, grooves 12 corresponding to the internal fixing blocks 3 one to one may be further formed on the inner surface of the protective cover 1, so as to better position the internal fixing blocks 3 on the inner surface of the protective cover 1. The internal fixing block 3 is embedded in the corresponding groove 12, so that the internal fixing block 3 and the inner surface of the protective sleeve 1 can be detachably fixed.

In this embodiment, the internal fixation block 3 may be partially or entirely made of a bioabsorbable material, such as a bioabsorbable iron-based material, or a magnetized bioabsorbable iron-based material, etc., thereby eliminating the post-operative removal of the internal fixation block 3.

As shown in fig. 11, it is a schematic structural view of the anastomotic stoma protecting device according to the second embodiment of the present invention applied to intestinal tract tissue. In this embodiment, the first securing assembly does not include a first connector. The power supply harness 6 can simultaneously serve to fix the electromagnet 2 and supply power to the electromagnet 2. The power supply harness 6 may adopt the specific structure in the first embodiment described above, but the present invention is not limited thereto. In other alternative embodiments, the power supply harness 6 may be designed in other structures, and may be connected to the electromagnet 2 in other manners, all of which fall within the scope of the present invention.

As shown in fig. 12, it is a schematic structural view of the anastomotic stoma protecting device according to the third embodiment of the present invention applied to intestinal tract tissue. In this embodiment, the stoma protector may be used for stoma protection in high intestinal tracts. The outer wall of the intestinal tract tissue 9 on the upstream side of the anastomotic stoma is provided with a group of electromagnets 2, an internal fixing block is correspondingly arranged inside the protective sleeve 1, the outer wall of the intestinal tract tissue 9 on the downstream side of the anastomotic stoma is provided with another group of electromagnets 2, and an internal fixing block is correspondingly arranged inside the protective sleeve 1. The length of required protective sheath 1 can be saved greatly to this kind of structure on the one hand to more make things convenient for placing of protective sheath 1 and removing of protective sheath 1 behind the anastomotic stoma resumes in the operation process, on the other hand can fix protective sheath 1 in the position that needs better, guarantees the stability in the use.

As shown in fig. 13-16, it is a schematic structural view of the anastomotic stoma protection device according to the fourth embodiment of the present invention applied to the intestinal tract tissue. In this embodiment, the second fixing assembly further comprises a second connecting piece 5. When the second connector 5 is installed at the intestinal tract assembly 9, the second connector 5 surrounds the inner surface of the protective sleeve 1 to form a connecting ring structure, so that the protective sleeve 1 is circumferentially fixed together with the inner fixing block 3. The second connecting piece 5 corresponds to the first connecting piece 4 in position, and forms a fixing ring for the protective sleeve 1. As shown in fig. 14, the second connecting member 5 includes a second bearing portion 51 and a second connecting portion 52. The second bearing portions 51 correspond to the inner fixing blocks 3 one to one, and bear the corresponding inner fixing blocks 3. The second connecting portion 52 is connected between two adjacent second bearing portions 51. When the second connecting piece 5 is arranged at the intestinal tract assembly 9, the second connecting piece 5 is circumferentially telescopic. Further, the second connecting member 5 may be an elastic connecting member, at least the second connecting portion 52 of which is elastic. Therefore, when the intestinal tract peristalsis, the second connecting piece 5 can elastically deform along with the peristalsis of the intestinal tract, the limiting pressure cannot be applied to the intestinal tract, and the telescopic movement space is provided for the intestinal tract. For example, the second connecting member 5 may be an elastic connecting member made of rubber, silicon rubber, or the like and having a certain elasticity. The second link 5 may be disposed in parallel to the support portion 11. The second connector 5 may be a closed ring structure or a connector with a connector, and when installed at the intestinal tract assembly 9, the connectors are connected end to form a connecting ring. When both the second connection portion 52 and the second bearing portion 51 have elasticity, the elasticity of the second bearing portion 51 may be less than that of the second connection portion 52. So that the second bearing part 51 can better fix the inner fixing block 3, and the second connecting part 52 can provide better circumferential telescopic capability.

Further, the second connecting member 5 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 eliminating the need for post-operative removal of the second connector 5.

As shown in fig. 15, in this embodiment, the width w31 of the second bearing part 51 is greater than the width w33 of the second connecting part 52. From this, the inside fixed block 3 of width broad can be born to the second bearing part 51 to realize inside fixed block 3 to the better fixed action of protective sheath 1, and the width of second connecting portion 52 is less, can improve the elastic deformation ability of second connecting portion 52, to the peristaltic influence greatly reduced of intestinal tissue 9. Further, the width w32 of the annular wall of the second bearing part 51 may be greater than the width w33 of the second connecting part 42, so as to improve the stability of the connection between the second bearing part 51 and the internal fixing block 3. In this embodiment, as shown in fig. 16, the thickness t31 of the second carrier part 51 and the thickness t32 of the second connecting part 52 are substantially equal. In another alternative embodiment, the thickness t31 of the second carrier part 51 may be greater than the thickness t32 of the second connecting part 52. Therefore, the second bearing part 51 can bear the inner fixing block 3 with thicker thickness, so that the inner fixing block 3 can be better fixed on the protective sleeve 1. In addition, the thickness of the second connection portion 52 is small, and the elastic deformability of the second connection portion 52 can be further improved.

As shown in fig. 14, the second bearing portion 51 and the second connecting portion 52 are integrally formed, and the second bearing portion 51 is a hollow ring structure surrounding the inner fixing block 3, that is, the second bearing portion 51 is provided with a mounting hole, and the inner fixing block 3 is embedded in the mounting hole. In order to more conveniently mount and remove the internal fixing block 3 to and from the second connector 5, each side wall of the internal fixing block 3, which is attached to the inner wall of the mounting hole, has a rounded corner 31 structure. In other alternative embodiments, the second bearing portion 51 may have other shapes, and may be formed separately from and fixedly connected to the second connecting portion 52. As shown in fig. 14, a circumferential second mounting groove 32 is at least partially formed on a side surface of the internal fixing block 3, and the annular second bearing part 51 is inserted into the second mounting groove 32. In another alternative embodiment, a second mounting groove in the circumferential direction of a second fixing block may be at least partially disposed inside an edge of the hollow annular structure of the second bearing part 51, and a side surface of the internal fixing block 3 is embedded in the second mounting groove, so that the internal fixing block 3 and the second bearing part 51 are stably connected.

In this embodiment, the second connector 5 may also be integrally formed with the protective sheath 1. In an alternative embodiment, the second connecting member 5 may be formed separately from the protective sheath 1 and fixed thereto by gluing or the like. In another alternative embodiment, the second connecting element 5 may also be not fixed in the protective sheath 1 in advance, but rather may be placed in the corresponding position of the protective sheath 1 by the surgeon during the operation.

As shown in fig. 17, is a schematic structural view of the anastomotic stoma protecting device according to the fifth embodiment of the present invention applied to intestinal tract tissue. In this embodiment, the second fixing component includes a magnetic particle coating 8 coated on the inner surface of the protective sheath 1, the position of the magnetic particle coating 8 corresponds to the electromagnet 2, and the magnetism of the magnetic particle coating 8 is opposite to the magnetism of the electromagnet 2 when the electromagnet is powered on. The magnetic particle coating layer 8 may be coated on the inner surface of the protective cover 1 by making magnetic slurry of magnetic particles with a binder, a solvent, or the like. Therefore, the second fixing component and the protective sleeve 1 form an integral structure, and can be placed at a required position inside the intestinal tissue 9 together during operation, and the anastomotic stoma can be taken out of the intestinal tissue 9 together after recovery after operation. The second fixing member structure of this embodiment may also be combined with the structure of the electromagnet 2 of each of the above embodiments. Likewise, by controlling the distribution density of the magnetic particles and the total number of the magnetic particles, the purpose of controlling the magnitude of the magnetic attraction force between the electromagnet 2 and the magnetic particle coating 8 can be achieved. Furthermore, the magnetic particle coating 8 is provided integrally with the protective sheath 1, eliminating the steps of mounting a second fixing assembly on the protective sheath 1 and removing it from the protective sheath 1. And, the second fixed subassembly adopts the mode of magnetic particle coating, and the space that the inside of protective sheath 1 took is littleer.

As shown in fig. 18, it is a schematic structural view of the anastomotic stoma protecting device according to the sixth embodiment of the invention applied to the intestinal tract tissue. In this embodiment, all or a part of the surface of the inner fixing block 3 is coated with a magnetic particle coating or internally distributed with magnetic particles. The magnetic particles of each internal fixed block 3 have the same magnetism and are opposite to the magnetism of the electromagnet 2.

The utility model provides an identical mouthful of material of each embodiment of protection device is the material that satisfies biocompatibility.

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

Claims

1. An anastomotic stoma protection device, comprising:

2. The stoma protection device according to claim 1, wherein the electromagnetic generating component includes an electromagnet.

3. The anastomotic stoma protection device according to claim 1, wherein the first fixation assembly comprises a plurality of electromagnetic generating components arranged at intervals, the plurality of electromagnetic generating components being arranged in sequence along a circumferential direction of the tubular tissue.

4. The anastomotic stoma protection device according to claim 3, wherein the second fixation assembly comprises a plurality of internal fixation blocks arranged at intervals, the internal fixation blocks being magnetic or magnetically attractable structural members.

5. The stoma protection device according to claim 3, wherein the power supply assembly includes a power supply harness that surrounds an outer wall of the tubular tissue and is electrically connected with the electromagnetic generating component.

6. The stoma protection device according to claim 5, wherein the supply bundle includes a plurality of strand bearing portions surrounding an exterior of the electromagnetism generating component and a plurality of strand connecting portions connected between two adjacent strand bearing portions, the strand bearing portions and the strand connecting portions combining to form a ring-like structure surrounding an outer wall of the tubular tissue.

7. The stoma protection device according to claim 6, wherein the power supply bundle further includes an extension portion, one end of which is connected to the bundle connection portion and the other end of which extends out of the body.

8. The anastomotic stoma protection device according to claim 6, wherein a first mounting groove in the circumferential direction is provided in a side surface of the electromagnetic generation component, and the wire harness bearing part of the power supply wire bundle is embedded in the first mounting groove; or the like, or, alternatively,

9. The stoma protection device according to claim 8, wherein a width of the wire harness carrier is greater than a width of the wire harness connection portion and/or a thickness of the wire harness carrier is greater than a thickness of the wire harness connection portion.

10. The stoma protection device according to claim 6, wherein the power supply bundle is an elastic bundle of wires.

11. The stoma protection device according to claim 10, wherein the elasticity of the wire harness connection portion is greater than the elasticity of the wire harness carrier portion.

12. The stoma protection device according to claim 5, wherein the first fixation assembly further includes a first connector surrounding an outer wall of the tubular tissue, the first connector including a first bearing portion bearing the electromagnetic generating component and a first connection portion connected between two adjacent first bearing portions, the first bearing portions surrounding an outer portion of the wire harness bearing portion.

13. The stoma protection device according to claim 5, wherein the power supply bundle includes a first connection structure at which the power supply bundle may be connected to encircle the outer wall of the tubular tissue or disconnected therefrom.

14. The stoma protection device according to claim 1, wherein the first fixation assembly further includes a first connector surrounding an outer wall of the tubular tissue, the first connector being connected to the electromagnetic generating component.

15. The stoma protection device according to claim 12 or 14, wherein the first connection piece includes a second connection structure, the first connection piece being connectable at the second connection structure to encircle the outer wall of the tubular tissue or being disconnectable at the second connection structure to detach from the outer wall of the tubular tissue.

16. The anastomotic stoma protection device according to claim 14, wherein the first fixation assembly comprises an internal fixation block and a second connector carrying the internal fixation block, the second connector being located on an inner surface of the protective sheath.

17. The anastomotic stoma protection device according to claim 16, wherein the first attachment element, the second attachment element and/or the internal fixation block are at least partially of a bioabsorbable material.

18. The stoma protection device according to claim 1, wherein the first fixation assembly further includes a first connector carrying the electromagnetic generating component; and/or the second fixing component comprises an internal fixing block and a second connecting piece for bearing the internal fixing block;

19. The anastomotic stoma protection device according to claim 1, wherein a support portion is provided at an end of the protective sheath upstream of the anastomotic stoma, the support portion being retractable in a radial direction of the protective sheath, the first and second fixation assemblies being provided between the anastomotic stoma and the support portion.

20. The stoma protection device according to claim 1, wherein the first and second fixation assemblies are disposed upstream of the stoma; or