Anastomosis protection device

Abstract

The present invention provides an anastomotic opening protection device comprising a protective sleeve, a first fixation assembly, a power supply assembly, and a second fixation assembly, wherein the protective sleeve is positioned inside tubular tissue at a position corresponding to the anastomotic opening, the first fixation assembly is attached to the outer wall of the tubular tissue and comprises an electromagnetic generating member, the power supply assembly is electrically connected to the electromagnetic generating member and is used to supply electricity to the electromagnetic generating member, and the second fixation assembly is attached to the inner surface of the protective sleeve, and the second fixation assembly and the first fixation assembly are fixed relative to each other by magnetic attraction. In this invention, the magnetic attraction between the electromagnetic generating member and the inner fixation assembly fixes the protective sleeve protecting the anastomotic opening in a required position without interfering with normal peristalsis of the tubular tissue and providing space for circumferential expansion and contraction of the tubular tissue, thereby ensuring normal blood supply near the anastomotic opening.

Description

[Technical field]

[0001] The present invention relates to the medical device technology field, and more particularly to a stomal protection device. [Background technology]

[0002] After intestinal cutting and suturing surgery, it is generally necessary to protect the anastomosis opening to prevent fecal matter from exerting tension on the anastomosis opening or from contaminating the anastomosis opening and causing anastomosis opening infection.

[0003] The existing anastomosis protection method generally installs a tubular cannula inside the intestine, covers the location of the anastomosis corresponding to the inner surface of the intestine, and introduces waste matter outside the human body through the cannula, effectively protecting the anastomosis, and can directly remove the cannula after the physiological tissue at the anastomosis grows, without needing to perform two surgeries. In order to better fix the cannula at the desired position, it is necessary to install a fixing belt with a fixed diameter on the outside of the cannula, which is arranged to surround the intestine at a fixed position. However, this fixing belt inevitably creates a certain pressure on the intestine, which inhibits the normal peristalsis of the intestine, and furthermore, the continuous pressure of the fixing belt may cause problems such as poor blood supply near the anastomosis. Summary of the Invention [Problem to be solved by the invention]

[0004] In view of the problems in the prior art, an object of the present invention is to provide an anastomosis opening protection device that fixes a protective sleeve for protecting an anastomosis opening in a required position by magnetic attraction between an electromagnetic generating member and an internal fixing assembly. [Means for solving the problem]

[0005] An embodiment of the present invention provides an anastomosis opening protection device comprising a protective sleeve, a first fixing assembly, a power supply assembly and a second fixing assembly, the protective sleeve being located inside a tubular tissue at a position corresponding to the anastomosis opening, the first fixing assembly being provided on an outer wall of the tubular tissue and comprising an electromagnetic generating member, the power supply assembly being electrically connected to the electromagnetic generating member, the electromagnetic generating member being energized to generate magnetic field by supplying power to the electromagnetic generating member, the second fixing assembly being provided on an inner surface of the protective sleeve, and the second fixing assembly and the electromagnetic generating member of the first fixing assembly being fixed relatively to each other by magnetic attraction.

[0006] In some embodiments, the electromagnetic generating member comprises an electromagnet.

[0007] In some embodiments, the first fixation assembly comprises a plurality of spaced apart electromagnetic generating members, the plurality of electromagnetic generating members being arranged sequentially around a circumference of the tubular tissue.

[0008] In some embodiments, the second fixation assembly comprises a plurality of spaced apart internal fixation blocks, the internal fixation blocks being magnetic or magnetically attractable structures.

[0009] In some embodiments, the power delivery assembly includes a power delivery harness that surrounds an outer wall of the tubular tissue and is electrically connected to the electromagnetic generating member.

[0010] In some embodiments, the power supply harness includes a plurality of harness mounting portions and a plurality of harness connection portions, the harness mounting portions surround the exterior of the electromagnetic generating member, the harness connection portions are connected between two adjacent harness mounting portions, and the harness mounting portions and the harness connection portions combine to form a ring-shaped structure that surrounds the outer wall of the tubular tissue.

[0011] In some embodiments, the power supply harness further includes an extension portion, one end of the extension portion being connected to the harness connection portion and the other end of the extension portion extending outside the body.

[0012] In some embodiments, a first mounting groove is provided along the circumferential direction on a side surface of the electromagnetic generating member, and the harness mounting portion of the power supply harness is fitted into the first mounting groove, or a first mounting groove is provided along the circumferential direction on an inner surface of the harness mounting portion of the power supply harness, and the electromagnetic generating member is fitted into the first mounting groove.

[0013] In some embodiments, a width of the harness mounting portion is greater than a width of the harness connection portion and / or a thickness of the harness mounting portion is greater than a thickness of the harness connection portion.

[0014] In some embodiments, the power supply harness is an elastic harness.

[0015] In some embodiments, the elasticity of the harness connection portion is greater than the elasticity of the harness placement portion.

[0016] In some embodiments, the first fixation assembly further includes a first connecting member surrounding an outer wall of the tubular tissue, the first connecting member including a first mounting portion for mounting the electromagnetic generating member and a first connection portion connected between two adjacent first mounting portions, the first mounting portion surrounding the exterior of the harness mounting portion.

[0017] In some embodiments, the power supply harness comprises a first connection structure, and the power supply harness is connected to the first connection structure to surround the outer wall of the tubular tissue or disconnected from the first connection structure to detach from the outer wall of the tubular tissue.

[0018] In some embodiments, the first fixation assembly further comprises a first connecting member surrounding an outer wall of the tubular tissue, the first connecting member being connected to the electromagnetic generating member.

[0019] In some embodiments, the first connecting member comprises a second connecting structure, and the first connecting member is connected to the second connecting structure to surround the outer wall of the tubular tissue or cut to the second connecting structure to be detached from the outer wall of the tubular tissue.

[0020] In some embodiments, the first fixation assembly comprises an inner fixation block and a second connecting member mounting the inner fixation block, the second connecting member being located on an inner surface of the protective sleeve.

[0021] In some embodiments, at least a portion of the first connecting member, the second connecting member and / or the internal fixation block comprises a bioabsorbable material.

[0022] In some embodiments, the first fixing assembly further comprises a first connecting member on which the electromagnetic generating member is mounted, and / or the second fixing assembly comprises an internal fixing block and a second connecting member on which the internal fixing block is mounted, wherein a first mounting groove is provided on at least a portion of the circumference of the electromagnetic generating member, and an inner circumference of the first connecting member is fitted into the first mounting groove, or a first mounting groove is provided on at least a portion of the inner circumference of the first connecting member, and the electromagnetic generating member is fitted into the first mounting groove, and a second mounting groove is provided on at least a portion of the circumference of the internal fixing block, and an inner circumference of the second connecting member is fitted into the second mounting groove, or a second mounting groove is provided on at least a portion of the inner circumference of the second connecting member, and the internal fixing block is fitted into the second mounting groove.

[0023] In some embodiments, a support portion is provided at one end of the protective sleeve located upstream of the anastomosis opening, the support portion is expandable and contractible in the radial direction of the protective sleeve, and the first fixation assembly and the second fixation assembly are provided between the anastomosis opening and the support portion.

[0024] In some embodiments, the first fixation assembly and the second fixation assembly are disposed upstream of the anastomotic opening, or the anastomotic opening protection device comprises two of the first fixation assemblies and two of the second fixation assemblies, one of the first fixation assembly and one of the second fixation assembly being disposed upstream of the anastomotic opening and another of the first fixation assembly and another of the second fixation assembly being disposed downstream of the anastomotic opening.

[0025] In some embodiments, the output current of the power supply assembly is adjustable.

[0026] In some embodiments, the power supply circuit includes an input power source, a current regulating circuit, a control element, and a power supply harness, the input power source supplies power to the electromagnetic generating member via the current regulating circuit and the power supply harness in sequence, and the control element is used to adjust the output current value of the current regulating circuit.

[0027] In some embodiments, the current adjustment circuit includes a transformer, the number of turns of a secondary coil of the transformer being adjustable, or the current adjustment circuit comprises a voltage divider circuit or a shunt circuit, at least one shunt branch of the voltage divider circuit or the shunt circuit comprising a variable resistor.

[0028] In some embodiments, the device further comprises a signal collection assembly, the signal collection assembly comprising at least one pressure sensor, the pressure sensor being provided on a side of the first fixation assembly facing the tubular tissue and / or a side of the second fixation assembly facing the protective sleeve.

[0029] In some embodiments, the pressure sensor further comprises a signal processing assembly configured to determine a drive current value based on a predetermined drive current change period and / or to determine a drive current value based on detection data of the pressure sensor, the signal processing assembly further configured to transmit a drive signal including the drive current value to the power supply assembly, and the power supply assembly configured to control an output current based on the drive current value.

[0030] In some embodiments, the power supply assembly includes a plurality of electromagnetic drive modules, the electromagnetic drive modules corresponding to the pressure sensors, and the signal processing assembly determines a drive current value of the corresponding electromagnetic drive module based on detection data of the pressure sensor, and transmits a drive signal including the drive current value to the corresponding electromagnetic drive module.

[0031] In some embodiments, the signal processing assembly further compares the detection data of the pressure sensor with a predetermined reference value and determines whether to issue an alarm depending on the comparison result, or compares the detection data of multiple pressure sensors and determines whether to issue an alarm depending on the comparison result, or compares the detection data of the pressure sensor with a predetermined reference value, or compares the detection data of multiple pressure sensors and determines whether to generate a drive current value and send a drive signal including the drive current value to the electromagnetic drive module depending on the comparison result.

[0032] In some embodiments, the device further comprises a display assembly, the display assembly being adapted to display the detection data of the pressure sensor and / or the output current value of the power supply assembly.

[0033] In some embodiments, data is transmitted between the signal processing assembly and the pressure sensor and the power supply assembly via signal lines or wireless communication, respectively.

[0034] The anastomosis protection device of the present invention has the following advantages.

[0035] The present invention protects the inner surface of the anastomosis opening through the protective sleeve, does not contaminate the anastomosis opening during the process of guiding the passage of the contents of the tubular tissue, and fixes the protective sleeve at a required position through the magnetic attraction between the electromagnetic generating member of the first fixing assembly and the second fixing assembly. In this device, only the magnetic attraction position between the electromagnetic generating member and the second fixing assembly is relatively fixed, and does not hinder the normal peristalsis of the tubular tissue, provides the tubular tissue with a space to expand and contract in the circumferential direction, and ensures normal blood supply near the anastomosis opening. By providing the electromagnetic generating member and the power supply assembly, the presence or absence of magnetism in the electromagnetic generating member can be flexibly controlled by controlling the on / off of the power supply, and the magnitude of the magnetism in the electromagnetic generating member can be flexibly controlled by controlling the magnitude of the power supply current. The tubular tissue to which the anastomosis opening protection device of the present invention is applied may be the intestine, or may be other tubular tissue in the human body, such as tubular tissue at other positions in the digestive tract. [Brief description of the drawings]

[0036] Other features, objects and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the drawings, in which: [Figure 1] 1 is a schematic diagram showing a structure in which an anastomosis opening protection device according to a first embodiment of the present invention is installed in intestinal tissue. FIG. [Diagram 2] 1 is a schematic diagram showing the structure of a protection device for an anastomosis opening in a first embodiment of the present invention. FIG. [Diagram 3] FIG. 2 is an exploded view of the anastomosis opening protection device according to the first embodiment of the present invention. [Figure 4] FIG. 2 is a schematic diagram of cooperation between a first fixing assembly and a power supply assembly in the first embodiment of the present invention. [Diagram 5] 4A to 4C are schematic diagrams illustrating the cutting of a first connection member in the first embodiment of the present invention. [Figure 6] 4A to 4C are schematic diagrams illustrating the cutting of the power supply harness in the first embodiment of the present invention. [Figure 7] 1 is a front view of a power supply harness according to a first embodiment of the present invention. [Figure 8] 1 is a side view of a power supply harness according to a first embodiment of the present invention. [Figure 9] FIG. 2 is a front view of a first connection member in the first embodiment of the present invention. [Figure 10] FIG. 2 is a side view of a first connection member in the first embodiment of the present invention. [Figure 11] FIG. 13 is a schematic diagram showing the structure of a protection device for an anastomosis opening in a second embodiment of the present invention. [Figure 12] FIG. 13 is a schematic diagram showing the structure of an anastomosis opening protection device according to a third embodiment of the present invention, which is installed in intestinal tissue. [Figure 13] FIG. 13 is a schematic diagram showing the structure of an anastomosis opening protection device according to a fourth embodiment of the present invention, which is installed in intestinal tissue. [Figure 14] FIG. 13 is a schematic diagram of cooperation between an inner fixing block and a second connecting member in the fourth embodiment of the present invention. [Figure 15] FIG. 13 is a front view of a second connection member in the fourth embodiment of the present invention. [Figure 16] FIG. 13 is a side view of a second connection member in the fourth embodiment of the present invention. [Figure 17] FIG. 13 is a schematic diagram showing the structure of an anastomosis opening protection device according to a fifth embodiment of the present invention, which is installed in intestinal tissue. [Figure 18] FIG. 23 is a schematic diagram showing the structure of an anastomosis opening protection device according to a sixth embodiment of the present invention, which is installed in intestinal tissue. [Figure 19] FIG. 13 is a schematic diagram showing the structure of a protection device for an anastomosis opening in a seventh embodiment of the present invention. [Figure 20] FIG. 13 is an exploded view of a protection device for an anastomotic opening according to a seventh embodiment of the present invention. [Figure 21] FIG. 13 is a first schematic diagram of a current adjustment circuit according to a seventh embodiment of the present invention. [Figure 22] FIG. 23 is a second schematic diagram of a current adjusting circuit in the seventh embodiment of the present invention. [Diagram 23] FIG. 23 is a third schematic diagram of a current adjusting circuit in the seventh embodiment of the present invention. [Figure 24]FIG. 13 is a first schematic diagram of the structure of an anastomosis port protection device with an additional signal collecting assembly and a signal processing assembly in the seventh embodiment of the present invention. [Diagram 25] FIG. 23 is a second schematic diagram of the structure of the anastomosis port protection device with the addition of a signal collecting assembly and a signal processing assembly in the seventh embodiment of the present invention. [Figure 26] FIG. 23 is a schematic diagram showing the structure of a protection device for an anastomotic opening in an eighth embodiment of the present invention. [Figure 27] FIG. 13 is a schematic diagram showing the structure of an anastomosis opening protection device according to a ninth embodiment of the present invention, which is installed in intestinal tissue. [Figure 28] FIG. 23 is a schematic diagram showing the structure of an anastomosis opening protection device according to a tenth embodiment of the present invention, disposed in intestinal tissue. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0037] Next, exemplary embodiments will be described in more detail with reference to the drawings. However, the exemplary embodiments can be implemented in various forms and should not be understood as being limited to the embodiments described herein. On the contrary, these embodiments are provided so that the present invention is comprehensive and complete, and the concept of the exemplary embodiments can be fully conveyed to those skilled in the art. Since the same reference numerals in the drawings represent the same or similar structures, repeated description will be omitted.

[0038] The present invention provides an anastomosis opening protection device, the device including a protection sleeve, a first fixing assembly, a second fixing assembly, and a power supply assembly. The protection sleeve is located at a position corresponding to the anastomosis opening inside the tubular tissue, and the protection sleeve plays a protective role on the inner surface of the anastomosis opening, and does not contaminate the anastomosis opening in the process of guiding the passage of the contents of the tubular tissue. The first fixing assembly is provided on the outer wall of the tubular tissue, and the first fixing assembly includes an electromagnetic generating member, which generates a magnetic field when a power supply current is input, and thus generates a magnetic field after the electromagnetic generating member is energized. The power supply assembly is electrically connected to the electromagnetic generating member to supply power to the electromagnetic generating member. The second fixing assembly is provided on the inner surface of the protection sleeve, and the second fixing assembly itself has a magnetic field or is magnetically attractable, and is relatively fixed to the electromagnetic generating member by magnetic attraction, so that the protection sleeve is fixed at a required position by magnetic attraction between the first fixing assembly and the second fixing assembly.

[0039] In this anastomosis opening protection device, only the magnetic adsorption position between the first and second fixing assemblies is relatively fixed, so normal peristalsis of the tubular tissue is not hindered, and a space for the tubular tissue to expand and contract in the circumferential direction is provided for ensuring normal blood supply near the anastomosis opening. The first fixing assembly includes an electromagnetic generating member that can be energized and has magnetism, and the presence or absence of magnetism in the electromagnetic generating member can be flexibly controlled by controlling the on / off of the power supply, and the magnitude of the magnetism in the electromagnetic generating member can be flexibly controlled by controlling the magnitude of the power supply current and the number of turns of the winding of the electromagnetic generating member.

[0040] The structures of the anastomosis opening protection devices of the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it will be understood that the individual specific embodiments do not limit the scope of protection of the present invention. In each embodiment, intestinal tissue is described as an example, however, in other embodiments, the tubular tissue is not limited to intestinal tissue, but may be other tubular tissues in the human body, such as tubular tissues in other parts of the digestive tract, all of which are within the scope of protection of the present invention.

[0041] As shown in FIGS. 1 to 8, the structure of a protection device for an anastomotic opening in a first embodiment of the present invention is schematic diagrams showing an application to intestinal tissue 9. FIG. As shown in Figs. 1 to 4, the anastomosis opening protection device includes a protection sleeve 1, a first fixing assembly, a power supply assembly, and a second fixing assembly, and the protection sleeve 1 is located at a position corresponding to the anastomosis inside the intestinal tissue 9 to protect the inner surface of the anastomosis opening and not to contaminate the anastomosis in the process of guiding the contents of the intestine. The first fixing assembly is provided on the outer wall of the intestinal tissue 9, and the first fixing assembly includes an electromagnetic generating member, and the power supply assembly is electrically connected to the electromagnetic generating member, and the electromagnetic generating member is energized to generate magnetism by supplying power to the electromagnetic generating member, and the second fixing assembly is provided on the inner surface of the protection sleeve 1, and the second fixing assembly and the electromagnetic generating member of the first fixing assembly are relatively fixed by magnetic attraction.

[0042] In this device, only the magnetic adsorption position between the first and second fixing assemblies is relatively fixed, so that normal peristalsis of the tubular tissue is not hindered, and a space for the tubular tissue to expand and contract in the circumferential direction is provided, thereby ensuring normal blood supply near the anastomosis opening. The electromagnetic generating member in the first fixing assembly generates a magnetic field when the power supply assembly supplies power. Therefore, the presence or absence of a magnetic field in the electromagnetic generating member can be flexibly controlled by controlling the on / off of the power supply, and the magnitude of the magnetic field in the electromagnetic generating member can be flexibly controlled by controlling the magnitude of the power supply current.

[0043] In this embodiment, the electromagnetic generating member is an electromagnet 2. An electromagnet is a structure that generates electromagnetic waves when electricity is applied, and a conductive winding that matches the power is wound around the outside of an iron core. When electricity is applied to the conductive winding, the winding that carries such a current is magnetic like a magnet. Therefore, in this embodiment, the magnitude of the magnetic field generated after current is applied to the electromagnet 2 can be adjusted by controlling the number of coil turns in the electromagnet 2. In other alternative embodiments, the electromagnetic generating member may adopt other configurations, such as an electromagnetic coil, but still fall within the scope of protection of the present invention.

[0044] As shown in Figs. 1-4, in this embodiment, the first fixing assembly includes a plurality of electromagnets 2 arranged at intervals, and the plurality of electromagnets 2 are arranged in sequence along the circumferential direction of the intestinal tissue 9 to form a uniform and stable fixation of the protective sleeve 1. The second fixing assembly includes an internal fixing block 3 corresponding to the electromagnets 2 one-to-one. The internal fixing block 3 may be made of a material that does not have magnetism but can be attracted to a magnet, such as a magnetic metal such as iron, nickel, cobalt, and its alloy. Alternatively, the internal fixing block 3 may be made of a magnetic material that has magnetism of its own, such as a magnet. In this embodiment, the plurality of electromagnets 2 are provided at intervals from each other, and the plurality of internal fixing blocks 3 are provided at intervals from each other. The number of electromagnets 2 and the internal fixing blocks 3 may be selected and installed as necessary, and a one-to-one correspondence, one-to-many correspondence, or many-to-one correspondence may be formed between the electromagnets 2 and the internal fixing blocks 3, all of which are within the scope of protection of the present invention. In other alternative embodiments, a single electromagnet 2 and / or a single internal fixed block 3 may be provided.

[0045] As shown in Fig. 2, the protective sleeve 1 is a tubular protective sleeve, which can provide circumferential protection for the anastomosis opening. The protective sleeve 1 can be a thin-walled flexible film sleeve, such as a rubber film sleeve, a silica gel film sleeve, etc., but the present invention is not limited thereto. In other alternative embodiments, the protective sleeve 1 can adopt other shapes and cover all or part of the inner wall of the anastomosis opening, all of which are within the protection scope of the present invention.

[0046] The fixing assembly is preferably disposed upstream of the anastomosis opening and used to fix the protective sleeve 1, thereby preventing the protective sleeve 1 from moving downstream of the anastomosis opening and losing protection of the anastomosis opening. In the present invention, upstream of the anastomosis opening refers to the direction in which the contents of the intestine move along the intestine, and refers to the movement of the contents of the intestine along the intestine from the upstream side of the anastomosis opening to the downstream side of the anastomosis opening. When this anastomosis opening protection device is applied to the low intestine, the protective sleeve 1 guides the waste material to be discharged along the intestine and moves from the upstream side of the anastomosis opening to the downstream side of the anastomosis opening.

[0047] As shown in FIG. 2 and FIG. 3, a support part 11 that can expand and contract in the radial direction of the protective sleeve 1 is provided at one end of the protective sleeve 1 located upstream of the anastomosis opening. When the support part 11 contracts in the radial direction, the protective sleeve 1 can be inserted into the intestinal tissue 9 as a whole or removed from the intestinal tissue 9. After the protective sleeve 1 is placed in a predetermined position, the support part 11 expands in the radial direction to form support for the protective sleeve 1 and maintain the position of the protective sleeve 1. The support part 11 may be an inflatable / contractable annular airbag, which is in a state of expanding in the radial direction when inflated and in a state of contracting in the radial direction when contracted. The support part 11 may be another radially expandable spring or a slider structure that can move in the radial direction, as long as the outer diameter of the support part 11 can be increased or decreased. The first fixing assembly and the second fixing assembly are provided between the anastomosis opening and the support part 11, and can better hold the protective sleeve 1 at the position of the anastomosis opening by cooperation with the support part 11.

[0048] As shown in FIG. 1, in this embodiment, the power supply assembly includes a power supply harness 6 surrounding the outer wall of the intestinal tissue 9 and electrically connected to each of the electromagnets 2. Furthermore, the power supply assembly further includes an input power source 7. The power supply harness 6 can be electrically connected to the input power source 7, and the input power source 7 supplies power to the conductive windings of the electromagnets 2 through the power supply harness 6, causing the electromagnets 2 to generate magnetism. The electromagnets 2 can have a structure that has magnetism when energized and is rapidly demagnetized when a power failure occurs. When it is necessary to fix the electromagnets 2 to the outer wall of the intestinal tissue 9, the electromagnets 2 and the internal fixed block 3 are magnetically attracted to each other by energizing the power supply harness 6 through the input power source 7. During use, the power supply harness 6 continues to supply power to the electromagnets 2. When the internal fixed block 3 itself is a magnetic block having magnetism, the electromagnets 2 have the opposite magnetism to that of the internal fixed block 3. When it is necessary to remove the electromagnets 2 from the outer wall of the intestinal tissue 9, the power supply harness 6 can be cut off from the input power source 7 so that the electromagnets 2 lose their magnetism. It is also possible to control the magnitude of the magnetic strength of the electromagnet 2 by controlling the magnitude of the power supply current in the power supply harness 6. In another alternative embodiment, the electromagnet 2 may be configured to slowly demagnetize after power is turned off, i.e. after being magnetic when the power supply is turned off again, it may remain magnetic for a while.

[0049] As shown in FIG. 4, the power supply harness 6 includes a plurality of harness placement portions 61 and a plurality of harness connection portions 62, the harness placement portion 61 being an annular hollow structure surrounding the exterior of the electromagnet 2, the harness connection portion 62 being connected between two adjacent harness placement portions 61, and the harness placement portion 61 and the harness connection portion 62 being 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 the circumferential direction on the side surface of the electromagnet 2, and the harness placement portion 61 of the power supply harness 6 is fitted into the first mounting groove 22 to ensure a 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 surface of the harness placement portion 61 of the power supply harness 6, and the electromagnet 2 may be fitted into the first mounting groove. In order to easily attach the electromagnet 2 to and detach it from the power supply harness 6, the electromagnet 2 and each side wall in contact with the inner wall of the mounting hole have a fillet 21 structure.

[0050] In this embodiment, the power supply harness 6 is an elastic harness 6, and further, at least the harness connection part 62 has elasticity, so that it can undergo elastic deformation with the peristalsis of the intestine without applying a restrictive pressure to the intestine, and can provide the intestine with a stretchable movement space. When the harness mounting part 61 and the harness connection part 62 are both elastic, preferably, the elasticity of the harness connection part 62 is greater than that of the harness mounting part 61, so that the harness mounting part 61 can form a more stable connection with the electromagnet 2, the elastic deformation force of the harness connection part 62 is better, and a better circumferential stretchable space can be provided.

[0051] As shown in Figures 3 and 4, the power supply harness 6 further includes an extension portion 63 having one end connected to the harness connection portion 62, and the other end of the extension portion 63 extends outside the body, and the extension portion 63 is electrically connectable to an input power source.

[0052] In this embodiment, in order to facilitate the attachment and detachment of the power supply harness 6 in the intestinal tissue 9, the power supply harness 6 includes a first connection structure. The first connection structure is a structure removably provided at both ends of the power supply harness 6. Specifically, the power supply harness 6 is a striped harness having two ends, and the two ends are provided with a removable first connection structure. For example, the first connection structure includes a groove provided at one end of the power supply harness 6 and a protrusion at the other end, the protrusion is embedded in the groove, and the connection of the two ends of the power supply harness 6 can be realized, and after the two ends are connected, the power supply harness 6 forms a closed ring, the protrusion is taken out of the groove, the first connection structure is disconnected, and the power supply harness 6 returns to the striped harness. In other alternative embodiments, the first connection structure may be a snap structure, a screw connection structure, an adhesive snap connection structure, etc. As shown in FIG. 6, when the power supply harness 6 is attached to the intestinal tissue 9, the power supply harness 6 can be connected by a first connection structure to surround the outer wall of the intestinal tissue 9, for example, to form a closed ring structure. The ring structure of the power supply harness 6 can be cut at a connection end point 64, and the power supply harness 6 can be formed into an open ring or stripe structure, so that it can be detached from the outer wall of the intestinal tissue 9. The connection at the connection end point 64 of the power supply harness 6 can be made by snaps, hooks, adhesives, the addition of fasteners, etc., all of which are within the scope of protection of the present invention. The power supply harness 6 has two application modes. In one mode, the initial state of the power supply harness 6 is a closed loop, and when it needs to be removed from the intestinal tissue 9, the first connection structure is cut to detach it from the intestinal tissue 9. In the other mode, the initial state of the power supply harness 6 is an open structure, and after being attached to the outside of the intestinal tissue 9, it is closed into a loop by a connection structure.

[0053] As shown in FIG. 7, the width w11 of the harness mounting portion 61 may be larger than the width w13 of the harness connection portion 62. Thereby, the harness mounting portion 61 can support a wide electromagnet 2 to realize a better fixing action of the electromagnet 2 to the protective sleeve 1, and further, the width of the harness connection portion 62 is small, the elastic deformation ability of the harness connection portion 62 can be increased, and the peristalsis effect on the intestinal tissue 9 can be significantly reduced. Furthermore, the width w12 of the annular wall of the harness mounting portion 61 is larger than the width w13 of the harness connection portion 62, and the connection stability between the harness mounting portion 61 and the electromagnet 2 can be increased. As shown in FIG. 8, the thickness t11 of the harness mounting portion 61 may be approximately equal to the thickness t12 of the harness connection portion 62. In another alternative embodiment, the thickness t11 of the harness mounting portion 61 may be larger than the thickness t12 of the harness connecting portion 62 in order to support a thick electromagnet 2, thereby further increasing the elastic deformation ability of the harness connecting portion 62 and providing a better circumferential expansion and contraction space. The thickness direction here corresponds to the radial direction of the power supply harness 6 that forms a ring structure (corresponding to the radial direction of the protective sleeve 1).

[0054] 3 and 4, the facing surface between the electromagnet 2 and the intestinal tissue 9 is an arc-shaped surface that substantially fits the outer wall of the intestinal tissue 9 to achieve better alignment between the electromagnet 2 and the outer wall of the intestinal tissue 9. The facing surface between the internal fixing block 3 and the protective sleeve 1 is an arc-shaped surface that substantially fits the inner surface of the protective sleeve 1 to achieve better alignment between the internal fixing block 3 and the inner surface of the protective sleeve 1.

[0055] Furthermore, in another alternative embodiment, the surfaces of the electromagnet 2 and / or the internal fixed block 3 may be corrugated. Specifically, the surface of the electromagnet 2 facing the intestinal tissue 9 is a corrugated surface with ups and downs along the longitudinal direction of the intestinal tissue 9 (S direction in FIG. 3), which can better adapt to the outer wall of the intestinal tissue 9, increase the contact area between the electromagnet 2 and the intestinal tissue 9, and improve the degree of engagement between the electromagnet 2 and the outer wall of the intestinal tissue 9. The surface of the internal fixed block 3 facing the protective sleeve 1 is a corrugated surface with ups and downs along the longitudinal direction of the intestinal tissue 9 (S direction in FIG. 3), which can increase the contact area between the internal fixed block 3 and the protective sleeve 1, and improve the degree of engagement between the internal fixed block 3 and the inner wall of the protective sleeve 1.

[0056] In this embodiment, the first fixing assembly further includes a first connecting member 4 surrounding the outer wall of the intestinal tissue 9, and the first connecting member 4 includes a first mounting portion 41 for mounting the electromagnet 2 and a first connecting portion 42 connected between two adjacent first mounting portions 41, and the first mounting portion 41 surrounds the outside of the harness mounting portion 61. The first connecting member 4 has elasticity and can be elastically deformed in accordance with the peristalsis of the intestine without applying restrictive pressure to the intestine, providing the intestine with a stretchable movement space. For example, the first connecting member 4 may be an elastic connecting member made of rubber, silicone, or the like having a certain degree of elasticity. When both the first connection portion 42 and the first mounting portion 41 have elasticity, the first mounting portion 41 may have less elasticity than the first connection portion 42 . When the same tensile force is applied to the first mounting portion 41 and the first connecting portion 42, the elastic deformation generated in the first mounting portion 41 can be made smaller than the elastic deformation generated in the first connecting portion 42. This allows the first mounting portion 41 to better fix the electromagnet 2, and allows the first connecting portion 42 to better provide the ability to expand and contract in the circumferential direction.

[0057] As shown in FIG. 5, the first connecting member 4 is further provided with a second connecting structure, and the first connecting member 4 can be connected by the second connecting structure to surround the outer wall of the intestinal tissue 9, or can be cut by the second connecting structure to separate from the outer wall of the intestinal tissue 9. The second connecting structure shown in FIG. 5 includes a connecting protrusion 43 and a connecting groove 44 provided at two ends, respectively, and when the connecting protrusion 43 is fitted into the connecting groove 44, the first connecting member 4 is annular, and when the connecting protrusion 43 is separated from the connecting groove 44, the first connecting member 4 is striped or in other open shapes. In other alternative embodiments, the connecting structure can also adopt other forms, such as providing a connecting ring and a connecting hook at each of the two ends, and realizing the two states of the first connecting member 4 by combining or separating them, providing an adhesive structure at the two ends, and realizing the two states of the first connecting member 4 by bonding or bonding separation.

[0058] As shown in FIG. 9, the width w21 of the first mounting portion 41 is larger than the width w23 of the first connecting portion 42. Thereby, the first mounting portion 41 can support a wide electromagnet 2 to realize a better fixing action of the electromagnet 2 to the protective sleeve 1, and further, the width of the first connecting portion 42 is small, the elastic deformation ability of the first connecting portion 42 can be increased, and the peristaltic effect on the intestinal tissue 9 can be greatly reduced. Furthermore, the width w22 of the annular wall of the first mounting portion 41 can be larger than the width w23 of the first connecting portion 42, and the connection stability between the first mounting portion 41 and the electromagnet 2 can be increased. In this embodiment, as shown in FIG. 10, the thickness t21 of the first mounting portion 41 and the thickness t22 of the first connecting portion 42 are approximately equal. In another alternative embodiment, the thickness t21 of the first mounting portion 41 may be larger than the thickness t22 of the first connecting portion 42. This allows the first mounting portion 41 to support a thick electromagnet 2 in order to achieve a better fixing action of the electromagnet 2 to the protective sleeve 1. Also, the thickness of the first connecting portion 42 is small, which can further increase the elastic deformation ability of the first connecting portion 42. The thickness direction here corresponds to the radial direction of the first connecting member 4 that forms a ring structure (corresponding to the radial direction of the protective sleeve 1).

[0059] The first mounting portion 41 is integrally formed with the first connecting portion 42, and the first mounting portion 41 is a hollow ring structure surrounding the electromagnet 2, i.e., the first mounting portion 41 is provided with a mounting hole, and the electromagnet 2 is fitted into the mounting hole. In other alternative embodiments, the first mounting portion 41 may adopt other shapes, or may be formed independently of the first connecting portion 42 and fixedly connected. As shown in FIG. 4, a first circumferential mounting groove 22 is at least partially provided on the side of the electromagnet 2, and the annular first mounting portion 41 is fitted into the first mounting groove 22. In another alternative embodiment, a circumferential mounting groove may be at least partially provided on the inside of the edge of the hollow ring structure of the first mounting portion 41, and the side of the electromagnet 2 may be fitted into the mounting groove to realize a stable connection between the electromagnet 2 and the first mounting portion 41. In this embodiment, the first mounting portion 41 is located outside the harness mounting portion 61 of the power supply harness 6 .

[0060] In this first embodiment and the third, fourth, fifth, sixth, seventh, ninth, and tenth embodiments described below, the first connecting member 4 can be made in part or in whole using a bioabsorbable material that has flexibility or a certain elasticity when a certain strength is ensured, for example, a bioabsorbable medical film, which can omit the step of removing the first connecting member 4 after surgery.

[0061] 3, the inner surface of the protective sleeve 1 may further include a groove 12 that corresponds to the inner fixed block 3 in one-to-one correspondence with the inner fixed block 3, so as to better position the inner fixed block 3 on the inner surface of the protective sleeve 1. The inner fixed block 3 is fitted into the corresponding groove 12 to realize the detachable fixation of the inner fixed block 3 with the inner surface of the protective sleeve 1.

[0062] In this first embodiment and the second, third, fourth, seventh, eighth, ninth and tenth embodiments described below, the internal fixation block 3 may be made partially or entirely of a bioabsorbable material, such as a bioabsorbable iron-based material or a magnetized bioabsorbable iron-based material, thereby making it possible to omit the step of removing the internal fixation block 3 after surgery.

[0063] As shown in FIG. 11, it is a schematic diagram of the anastomosis protection device in the second embodiment of the present invention being applied to intestinal tissue. In this embodiment, the first fixing assembly does not include a first connecting member. The power supply harness 6 can simultaneously play the role of fixing the electromagnet 2 and supplying power to the electromagnet 2. The power supply harness 6 and the cooperation relationship between the electromagnet 2 and the power supply harness 6 can adopt the specific configuration in the first embodiment, but the present invention is not limited thereto. In other alternative embodiments, the power supply harness 6 can be designed as a different structure and can be connected to the electromagnet 2 in a different manner, all of which fall within the protection scope of the present invention. The second fixing assembly can adopt the specific configuration in the first embodiment.

[0064] As shown in FIG. 12, this is a schematic diagram of the structure of the anastomotic port protection device in the third embodiment of the present invention applied to intestinal tissue. In this embodiment, the anastomotic port protection device is used to protect an anastomotic port at the upper part of the intestine. The anastomotic port protection device includes two of the first fixing assemblies and two of the second fixing assemblies, one of the first fixing assembly and one of the second fixing assembly are provided on the upstream side of the anastomotic port, and the other of the first fixing assembly and the other of the second fixing assembly are provided on the downstream side of the anastomotic port. The first fixing assembly can adopt the configuration of the first fixing assembly in the first embodiment or the second embodiment, and the second fixing assembly can adopt the configuration of the second fixing assembly in the first embodiment, the fourth embodiment, the fifth embodiment, or the sixth embodiment described later. The structures of the upstream first fixing assembly and the downstream first fixing assembly may be the same or different, and the structures of the upstream second fixing assembly and the downstream second fixing assembly may be the same or different. A set of electromagnets 2 is installed on the outer wall of the intestinal tissue 9 upstream of the anastomosis opening, and an internal fixing block 3 is correspondingly installed inside the protective sleeve 1, and another set of electromagnets 2 is installed on the outer wall of the intestinal tissue 9 downstream of the anastomosis opening, and an internal fixing block is correspondingly installed inside the protective sleeve 1. Such a structure can greatly save the length of the required protective sleeve 1, make the placement of the protective sleeve 1 during surgery and the removal of the protective sleeve 1 after the anastomosis opening is restored more convenient, and can also fix the protective sleeve 1 in the required position and ensure its stability during use.

[0065] As shown in Figs. 13 to 16, it is a schematic diagram of the structure of the anastomosis port protection device in the fourth embodiment of the present invention applied to intestinal tissue. In this embodiment, the second fixing assembly further includes a second connecting member 5. When the second connecting member 5 is attached to the intestinal tissue 9, the second connecting member 5 surrounds the inner surface of the protection sleeve 1 to form a connecting ring structure, thereby fixing the protection sleeve 1 together with the internal fixing block 3 in the circumferential direction. The second connecting member 5 forms a fixing ring for the protection sleeve 1 corresponding to the position of the first connecting member 4. As shown in Fig. 14, the second connecting member 5 includes a second mounting portion 51 and a second connecting portion 52. The second mounting portion 51 corresponds to the internal fixing block 3 one-to-one, and mounts the corresponding internal fixing block 3. The second connecting portion 52 is connected between two adjacent second mounting portions 51. When the second connecting member 5 is attached to the intestinal tissue 9, the second connecting member 5 is expandable and contractible in the circumferential direction. Furthermore, the second connection member 5 may be an elastic connection member, and at least the second connection portion 52 has elasticity. Therefore, during intestinal peristalsis, the second connection member 5 can undergo elastic deformation with the peristalsis of the intestine without applying a restrictive pressure to the intestine, and can provide the intestine with a stretchable movement space. For example, the second connection member 5 may be an elastic connection member having elasticity and made of a material such as rubber or silica gel. The second connection member 5 can be arranged in parallel with the support portion 11. The second connection member 5 may be a closed ring structure or a connector having a connection port, and when attached to the intestinal tissue 9, the head and tail are joined to form a connector ring. When the second connection portion 52 and the second mounting portion 51 both have elasticity, the elasticity of the second mounting portion 51 may be smaller than the elasticity of the second connection portion 52. This allows the second mounting portion 51 to better fix the internal fixing block 3, and the second connection portion 52 to provide better circumferential stretching ability.

[0066] Furthermore, in this third embodiment and the tenth embodiment described later, the second connecting member 5 may be made of a bioabsorbable material having flexibility or a certain elasticity when a certain strength is ensured, such as a bioabsorbable material made of a bioabsorbable film, in part or in whole, thereby eliminating the need for a step of removing the second connecting member 5 after surgery.

[0067] As shown in FIG. 15, in this embodiment, the width w31 of the second mounting portion 51 is larger than the width w33 of the second connecting portion 52. Thereby, the second mounting portion 51 can support a wide internal fixing block 3 to realize a better fixing action of the internal fixing block 3 to the protective sleeve 1, and the width of the second connecting portion 52 is small, the elastic deformation ability of the second connecting portion 52 can be increased, and the influence on the peristalsis of the intestinal tissue 9 can be greatly reduced. Furthermore, the width w32 of the annular wall of the second mounting portion 51 is larger than the width w33 of the second connecting portion 42, and the connection stability between the second mounting portion 51 and the internal fixing block 3 can be increased. In this embodiment, as shown in FIG. 16, the thickness t31 of the second mounting portion 51 and the thickness t32 of the second connecting portion 52 are approximately equal. In another alternative embodiment, the thickness t31 of the second mounting portion 51 may be larger than the thickness t32 of the second connecting portion 52. This allows the second mounting portion 51 to support a thicker internal fixed block 3 in order to achieve a better fixing action of the internal fixed block 3 to the protective sleeve 1. In addition, the second connecting portion 52 has a small thickness, which can further increase the elastic deformation ability of the second connecting portion 52.

[0068] As shown in FIG. 14, the second mounting portion 51 is integrally formed with the second connecting portion 52, and the second mounting portion 51 is a hollow annular structure surrounding the internal fixed block 3, i.e., the second mounting portion 51 is provided with a mounting hole, and the internal fixed block 3 is fitted into the mounting hole. In order to easily attach the internal fixed block 3 to the second connecting member 5 and remove it from the second connecting member 5, the internal fixed block 3 has a fillet 31 structure on each side wall that contacts the inner wall of the mounting hole. In other alternative embodiments, the second mounting portion 51 may adopt other shapes, or may be molded independently of the second connecting portion 52 and fixedly connected. As shown in FIG. 14, a second mounting groove 32 is at least partially provided in the side surface of the internal fixed block 3 in the circumferential direction, and the annular second mounting portion 51 is fitted into the second mounting groove 32. In another alternative embodiment, a second mounting groove in the circumferential direction of the second fixed block may be provided at least partially on the inside of the edge of the hollow annular structure of the second mounting portion 51, and the side surface of the internal fixed block 3 may be fitted into the second mounting groove to realize a stable connection between the internal fixed block 3 and the second mounting portion 51.

[0069] In this embodiment, the second connecting member 5 may be integrally molded with the protective sleeve 1. In an alternative embodiment, the second connecting member 5 may be respectively molded with the protective sleeve 1 and then fixed by a method such as adhesion. In another alternative embodiment, the second connecting member 5 is not fixed to the protective sleeve 1 in advance, but may be placed at the corresponding position of the protective sleeve 1 by the doctor during the operation.

[0070] As shown in FIG. 17, this is a schematic diagram of the structure of the anastomosis opening protection device in the fifth embodiment of the present invention applied to intestinal tissue. In this embodiment, the second fixing assembly includes a magnetic particle coating layer 8 applied to the inner surface of the protective sleeve 1, the position of the magnetic particle coating layer 8 corresponds to the electromagnet 2, and the magnetism of the magnetic particle coating layer 8 is opposite to that of the electromagnet 2 when it is energized. The magnetic particle coating layer 8 can be applied to the inner surface of the protective sleeve 1 by forming magnetic particles, binders, solvents, etc. into a magnetic slurry. Therefore, the second fixing assembly is formed into an integral structure with the protective sleeve 1, and can be placed together at a required position inside the intestinal tissue 9 during surgery, and can be taken out together from the intestinal tissue 9 after the anastomosis opening is restored after surgery. The second fixing assembly configuration of this embodiment may be combined with the configuration of the electromagnet 2 in each of the above embodiments. Similarly, the purpose of controlling the magnitude of the magnetic attraction force between the electromagnet 2 and the magnetic particle coating layer 8 can be achieved by controlling the distribution density of the magnetic particles and the total number of the magnetic particles. Furthermore, the magnetic particle coating layer 8 is provided integrally with the protective sleeve 1, eliminating the steps of attaching the second fixing assembly to the protective sleeve 1 and removing it from the protective sleeve 1. The second fixing assembly also uses the magnetic particle coating layer so that the space occupied inside the protective sleeve 1 is reduced.

[0071] 18 is a schematic diagram of the structure of an anastomosis protection device according to a sixth embodiment of the present invention applied to intestinal tissue. In this embodiment, the entire or part of the surface of the internal fixed block 3 is covered with a magnetic particle coating layer, or magnetic particles are distributed inside. The magnetic properties of the magnetic particles in each of the internal fixed blocks 3 are the same and opposite to that of the electromagnet 2. In the above fourth, fifth and sixth embodiments, the configuration of the first fixing assembly, the configuration of the power supply harness 6 and the cooperation between the first fixing assembly and the power supply harness may be similar to those of the first embodiment. In another alternative embodiment, the first fixing assembly and / or the power supply harness 6 may adopt other configurations, and the cooperation between the first fixing assembly and the power supply harness may adopt other methods.

[0072] In the prior art, the fixing belt encircles the intestine, and the pressure on the intestine is fixed and cannot be adjusted. Based on this, the present invention also provides an anastomosis port protection device with adjustable output current of a power supply assembly, and the protection sleeve for protecting the anastomosis port is fixed at the required position by the magnetic attraction of the power supply assembly and the internal fixing assembly. By adopting a power supply assembly with adjustable output current, Electromagnetic generating parts The magnitude of the generated magnetic force can be adjusted to thereby adjust the pressure of the first fixation assembly and the second fixation assembly against the tubular tissue.

[0073] 19 to 25 are schematic diagrams showing the configuration of a protection device for an anastomotic opening according to a seventh embodiment of the present invention. The difference between this embodiment and the first embodiment is that the configuration of the power supply assembly is different. The protection device for an anastomotic opening comprises a protection sleeve 1, a first fixing assembly, a power supply assembly, and a second fixing assembly, the protection sleeve 1 is located at a position corresponding to the anastomotic opening inside the intestinal tissue 9, and exerts a protective effect on the inner surface of the anastomotic opening, and does not contaminate the anastomotic opening in the process of passing the contents of the intestine, the first fixing assembly is provided on the outer wall of the intestinal tissue 9, the first fixing assembly comprises an electromagnetic generating member, the power supply assembly supplies power to the electromagnetic generating member, the power supply assembly is energized to generate magnetism, the output current of the power supply assembly is adjustable, the second fixing assembly is provided on the inner surface of the protection sleeve 1, and the second fixing assembly and the electromagnetic generating member of the first fixing assembly are relatively fixed by magnetic attraction.

[0074] In this device, only the magnetic attraction position between the first and second fixing assemblies is relatively fixed, so that normal peristalsis of the tubular tissue is not hindered, and a space is provided for the tubular tissue to expand and contract in the circumferential direction, thereby ensuring normal blood supply near the anastomosis opening. Electromagnetic generating parts can generate a magnetic field when supplying power through the power supply assembly. Therefore, by controlling the power supply of the power supply assembly to be on and off, Electromagnetic generating partsThe presence or absence of magnetism inside can be flexibly controlled, and by adopting a power supply assembly with adjustable output current, Electromagnetic generating parts The magnitude of the generated magnetic force can be adjusted, thereby adjusting the pressure of the first fixation assembly and the second fixation assembly against the tubular tissue.

[0075] In this embodiment, the electromagnetic generating member is an electromagnet 2. In other alternative embodiments, the electromagnetic generating member may adopt other configurations, such as an electromagnetic coil, which are within the scope of protection of the present invention.

[0076] As shown in Figs. 19-21, in this embodiment, the first fixing assembly includes a plurality of electromagnets 2 arranged at intervals, and the plurality of electromagnets 2 are arranged in sequence along the circumferential direction of the intestinal tissue 9 to form a uniform and stable fixation with respect to the protective sleeve 1. The second fixing assembly includes an internal fixing block 3 corresponding to the electromagnets 2 one-to-one. The internal fixing block 3 can be made of a material that does not have magnetism itself but can be attracted to a magnet, such as a magnetic metal such as iron, nickel, cobalt, and alloys thereof. Alternatively, the internal fixing block 3 can be made of a magnetic material that has its own magnetism, such as a magnet, and the magnetism is opposite to that of the electromagnet 2 when it is energized. In this embodiment, the plurality of electromagnets 2 are arranged at intervals from each other, and the plurality of internal fixing blocks 3 are arranged at intervals from each other. The number of electromagnets 2 and the internal fixed blocks 3 can also be selected and installed as needed, and a one-to-one correspondence, one-to-many correspondence, or many-to-one correspondence, etc., may be formed between the electromagnets 2 and the internal fixed blocks 3, all of which are within the scope of protection of the present invention. In other alternative embodiments, there may be one electromagnet 2 and / or one internal fixed block 3.

[0077] As shown in FIG. 20, the protective sleeve 1 is a tubular protective sleeve, which can provide circumferential protection for the anastomotic opening. The protective sleeve 1 may be a flexible thin-walled film sleeve, such as a rubber film sleeve, a silica gel film sleeve, etc., but the present invention is not limited thereto. In other alternative embodiments, the protective sleeve 1 may adopt other shapes and cover the entire or part of the inner wall of the anastomotic opening, all of which are within the protection scope of the present invention. The fixing assembly is preferably disposed upstream of the anastomotic opening and used to fix the protective sleeve 1, thereby avoiding the protective sleeve 1 from moving downstream of the anastomotic opening and losing the protection of the anastomotic opening.

[0078] 19 and 20, a support part 11 that is expandable and contractible in the radial direction of the protective sleeve 1 is provided at one end of the protective sleeve 1 located upstream of the anastomosis opening. The configuration and operation of the support part 11 may be similar to those of the support part 11 in the first embodiment. The first and second fixing assemblies are provided between the anastomosis opening and the support part 11, and cooperate with the support part 11 to better hold the protective sleeve 1 at the position of the anastomosis opening.

[0079] 19, in this embodiment, the power supply includes a power supply harness 6, a current adjustment circuit 71, a control element 73, and an input power supply 72, the input power supply 72 supplies power to the electromagnet 2 through the current adjustment circuit 71 and the power supply harness 6 in sequence, the control element 73 adjusts the output current value of the current adjustment circuit 71, and the control element 73 may be a manually adjusted switch or an automatic control circuit (for example, realized by using a programmable logic controller PLC). The input power supply 72 can be a rechargeable battery or a non-rechargeable battery, etc., the current adjustment circuit 71 can transmit AC or DC current to the power supply harness 6, and the electromagnet 2 is an AC electromagnet or a DC electromagnet correspondingly.

[0080] The power supply harness 6 surrounds the outer wall of the intestinal tissue 9 and is electrically connected to the electromagnet 2. The power supply harness 6 may be electrically connected to an input power source 72, which supplies power to the conductive windings of the electromagnet 2 via a current adjustment circuit 71 and the power supply harness 6 so that the electromagnet 2 generates magnetism. The electromagnet 2 may have a structure that is magnetic when energized and rapidly demagnetized when a power failure occurs. When it is necessary to fix the electromagnet 2 to the outer wall of the intestinal tissue 9, the input power source 72 energizes the power supply harness 6 via the current adjustment circuit 71, and the electromagnet 2 and the internal fixing block 3 are magnetically attracted to each other. During use, the power supply harness 6 continues to supply power to the electromagnet 2. When it is necessary to remove the electromagnet 2 from the outer wall of the intestinal tissue 9, the power supply from the input power source 72 to the power supply harness 6 can be cut off so that the electromagnet 2 loses magnetism. The current adjustment circuit 71 can control the magnitude of the power supply current in the power supply harness 6, and can control the magnitude of the magnetic strength of the electromagnet 2.

[0081] The current adjustment circuit 71 may adopt a number of different circuit configurations as long as the magnitude of the current output by the input drive signal can be adjusted. For example, the current adjustment circuit includes a transformer and can adjust the number of turns of the secondary coil of the transformer, the primary coil of the transformer inputs the power supply current of the input power source 72, and the secondary coil of the transformer inputs the power supply current to the power supply harness 6, and the purpose of adjusting the power supply current can be achieved by adjusting the number of turns of the secondary coil of the transformer. Also, for example, the current adjustment circuit can include a shunt circuit including a variable resistor in at least one shunt branch, and the output current of the shunt circuit can be adjusted by adjusting the resistance value of the variable resistor.

[0082] As shown in Figures 21 to 23, the configurations of three types of current adjustment circuits 71 are merely examples of the adjustment principle circuits of the current adjustment circuits 71. In practical applications, the current adjustment circuit 71 may include one or more of the structures therein, and may further include other necessary circuit components, such as those shown in Figures 21 to 23. 21A filter circuit, a constant voltage circuit, a current detection circuit, a voltage detection circuit, etc. can be added to the circuit of FIG.

[0083] As shown in Fig. 21, a schematic diagram of a first current regulating circuit in this embodiment is shown. Here, the current regulating circuit includes a transformer T, an input power source Vin between two input terminals of a primary winding P of the transformer T, and an output power source Vout between output terminals O4 and O5 of a secondary winding S of the transformer T. The secondary winding S is , 3 Three output terminals 01, 02, and 03 are drawn out, a first terminal of a switch K is provided with a variable contact, and the other terminal is connected to an output off 04. The variable contact of the switch K is controlled to electrically connect to different output terminals 01, 02, and 03, thereby realizing the adjustment of the voltage value of the output power supply Vout between the output terminals 04 and 05. When the number of coil turns of the electromagnet 2 is not changed, the current value supplied to the electromagnet 2 by the current adjustment circuit also changes with the change in the voltage Vout input to the electromagnet 2. In such a configuration, the number of turns of the secondary winding S corresponds to three modulatable shifts, and it is also possible to provide only two modulatable shifts or to increase the number of shifts.

[0084] In this embodiment, the control element may be a manual switch or an automatic control circuit. For example, when the current regulating circuit includes a transformer T with adjustable secondary coil turns, the control element is a shift switch that allows the switch K to be manually adjusted, and each shift of the shift switch corresponds to a different position of the adjustable contact of the switch K, and the secondary coil turns of the transformer T can be adjusted by adjusting the shift switch. In another embodiment, the control element can be realized by a control circuit that generates a control signal to control ON or OFF between the adjustable contact of the switch K and different output terminals 01, 02, and 03 to adjust the secondary coil turns of the transformer T.

[0085] As shown in FIG. 22, it is a schematic diagram of the second current adjustment circuit in this embodiment. Here, one MOS (metal-oxide semiconductor field effect) switching tube M1, M2, M3 is provided between the secondary winding S and three output terminals 01, 02, 03, respectively, and by controlling the gate voltage of each MOS switching tube, it is possible to control the on between the source and drain of the switching tubes M1, M2, M3, and realize different output voltages Vout. For example, when only the source and drain of the switching tube M1 is turned on, the output voltage Vout corresponds to the voltage between the output terminals 01 and 04, when only the source and drain of the switching tube M2 is turned on, the output voltage Vout corresponds to the voltage between the output terminals 02 and 04, and when only the source and drain of the switching tube M3 is turned on, the output voltage Vout corresponds to the voltage between the output terminals 03 and 04. When the number of coil turns of the electromagnet 2 does not change, the current adjustment circuit changes the current value supplied to the electromagnet 2 according to the change in the voltage Vout input to the electromagnet 2. The number of turns of the secondary winding S in such a configuration corresponds to three modulatable shifts, although it is also possible to provide only two modulatable shifts or to increase the number of shifts.

[0086] In this embodiment, the control element may be a manual switch or an automatic control circuit. For example, the control element may be a switching element that allows the gate voltage of each switching tube to be manually adjusted, or a control circuit that automatically adjusts the gate voltage of each switching tube.

[0087] As shown in Figure 23, a schematic diagram of the third current regulating circuit in this embodiment is shown. Here, voltage division is realized by a resistor R1 and a variable resistor R2 connected in series. When adjusting the resistance value of the variable resistor R2, the output voltage Vou tWhen the change is realized and the number of coil turns of the electromagnet 2 is not changed, the change in the voltage Vout of the input electromagnet 2 changes the value of the current sent by the current regulating circuit to the electromagnet 2. In another alternative embodiment, the current shunt circuit can be realized using at least two parallel-connected resistors, at least one of which is a variable resistor, and the adjustment of the output current is realized by adjusting the current value of the variable resistor.

[0088] In this embodiment, the control element may be a manual switch or an automatic control circuit. For example, the control element may be a switch that manually adjusts the variable resistor R2, and by moving the switch, the resistance value at which the variable resistor R2 is connected to the current adjustment circuit can be adjusted, and the control element may be a control circuit that automatically adjusts the variable resistor R2.

[0089] In the above embodiment, the voltage or current adjusting circuit is a circuit adjusted according to the shift, and may be a voltage adjusting circuit with no polarity adjustment or a varistor circuit with no polarity adjustment.

[0090] As shown in Figs. 24 and 25, in this embodiment, the anastomosis protection device may further include a signal collection assembly, the signal collection assembly including at least one pressure sensor 81, the pressure sensor 81 being provided on the side of the electromagnet 2 facing one side of the tubular tissue and / or the internal fixation block 3 facing one side of the protection sleeve, or the pressure sensor 81 being provided at a position on the protection sleeve 1 corresponding to the first fixation assembly or the second fixation assembly. Fig. 24 shows a configuration in which the pressure sensor 81 is provided on the inner surface of the electromagnet 2, and the pressure sensor 81 may be provided on the inner surface of one or more electromagnets 2. Fig. 25 shows a configuration in which the pressure sensor 81 is provided on the outer surface of the internal fixation block 3, and the pressure sensor 81 may be provided on the outer surface of one or more internal fixation blocks 3. In another embodiment, the pressure sensor 81 may be provided on the inner surfaces of some or all of the electromagnets 2, and the pressure sensor 81 may be provided on the outer surfaces of some or all of the internal fixation blocks 3. The pressure sensor 81 can collect the pressure between the electromagnet 2 and the inner fixed block 3, i.e., the magnitude of the magnetic attraction force, and can realize the monitoring of the magnetic attraction force. collection The components may further include an A / D converter to convert the analog signal collected by the pressure sensor 81 into a digital signal.

[0091] 24 and 25, the anastomosis protection device may further include a signal processing assembly 82, which may adjust a drive current value of the power supply assembly and then send a drive signal including the drive current value to the power supply assembly, and the power supply assembly is configured to control an output current based on the drive current value. Specifically, the control element 73 includes a control circuit that enables automatic current control, and the drive signal is sent to the control element 73 by the signal processing assembly 82. The control element 73 can adjust the output current value of the current adjustment circuit 71 according to the driving signal. For example, in the configuration of FIG. 21, the control element 73 adjusts the electrical connection between the adjustable contact of the switch K and the corresponding output terminal 01, 02 or 03 according to the relationship between the driving current value and the shift position of the switch K; in the configuration of FIG. 22, the control element 73 controls the gate voltages of the switches M1, M2 and M3 according to the relationship between the driving current value and the shift position, and adjusts the on or off of the switching tubes M1, M2 and M3 to realize the output current adjustment of the current adjustment circuit 71; in the configuration of FIG. 23, the control element 73 adjusts the resistance value of the variable resistor according to the relationship between the driving current value and the variable resistance value to realize the output current adjustment of the current adjustment circuit 71.

[0092] The signal processing assembly 82 may adopt different methods when determining the drive current value. For example, in one embodiment, the signal processing assembly 82 may determine the drive current value based on a preset drive current change period, and realize the periodic adjustment of the magnetic attraction force between the electromagnet 2 and the internal fixed block 3, i.e., the periodic adjustment of the fixing force between the first fixing assembly and the second fixing assembly. In another embodiment, the signal processing assembly 82 may also determine the drive current value based on the detection data of the pressure sensor 81, for example, the signal processing assembly 82 may compare the detection data of the pressure sensor 81 with a preset reference value, and when the detection data of the pressure sensor 81 is smaller than the preset reference value, the magnetic attraction force is small and the drive current value may be increased, or conversely, the drive current value may be decreased. Furthermore, when the difference between the detection data of the pressure sensor 81 and the preset reference value is greater than a first preset threshold, the signal processing component may perform an alarm, for example, control the alarm to emit an alarm sound or an alarm lamp, or send an alarm signal to a user terminal.

[0093] Furthermore, the signal processing assembly 82 compares the detection data of the pressure sensor 81 with a preset reference value, calculates the absolute value of the difference between the detection data of the pressure sensor 81 and the preset reference value, and sets the absolute value of the difference to the preset reference value. The first preset It is determined whether the difference is greater than the threshold value, and if so, it is found that the difference between the actual detection data and the preset reference value is large, and the signal processing assembly 82 needs to calculate a drive current value based on the difference between the detection data of the pressure sensor 81 and the preset reference value, and send a drive signal including the drive current value to the control element 73. First preset thresholdIf it is less than or equal to, it can be known that the error is within the allowable range, and in this case, there is no need to calculate the driving current value from the difference value. When there are multiple pressure sensors 81, the signal processing assembly 82 can compare the detection data of the multiple pressure sensors 81 to determine whether the error of the detection data of each of the two pressure sensors 81 is greater than a preset error threshold value, and if so, it is necessary to adjust the output data of the current adjustment circuit 71 corresponding to one or more pressure sensors 81 therein, that is, the signal processing assembly 82 generates a corresponding driving signal and sends it to the corresponding control element 73.

[0094] When multiple electromagnets 2 and multiple pressure sensors 81 are provided, one overall current adjustment circuit 71 may be used to supply power to the multiple electromagnets 2, or multiple current adjustment circuits 71 may be provided to supply power to each electromagnet 2. When an overall current adjustment circuit 71 is provided, the signal processing assembly 82 can determine a drive current value based on the average detection data of the multiple pressure sensors 81. Furthermore, when the difference between the multiple pressure sensors 81 is greater than a second preset threshold, the signal processing component 82 can alarm, for example, control an alarm device to emit an alarm sound or an alarm lamp, or send an alarm signal to a user terminal. Also, when multiple current adjustment circuits 71 are provided to supply power to each electromagnet 2, the signal processing assembly 82 can determine a drive current value based on the detection data of each pressure sensor 81 and output a drive signal to the corresponding current adjustment circuit 71.

[0095] Data can be transmitted between the signal processing assembly 82, the pressure sensor 81, and the current adjustment circuit 71 of the power supply assembly via signal lines. The signal lines may be arranged to surround the outer wall of the intestinal tissue 9, or other installation methods may be adopted. In another embodiment, data can be transmitted between the signal processing component 82, the pressure sensor 81, and the current adjustment circuit 71 of the power supply assembly via wireless communication. For example, a wireless communication module is added to each of the pressure sensor 81 and the current adjustment circuit 71. The signal processing component 82 may communicate with the pressure sensor 81 via signal lines and with the current adjustment circuit 71 via wireless communication, or with the pressure sensor 81 via wireless communication and with the current adjustment circuit 71 via signal lines. The signal processing component 82 may further be connected to a display assembly 83 that can display the monitored pressure value of the pressure sensor 81. The signal processing component 82 may be realized using one processor chip, the signal processing component 82 and the display assembly 83 may be realized using a user terminal such as a mobile phone, a notebook computer, a tablet, or a desktop, and the display assembly 83 may be realized using one display screen. The display assembly 83 and the signal processing component 82 may communicate with each other via a signal line or wireless communication. The display assembly 83 may further display the driving current value to display the control state of the power supply assembly in real time. Furthermore, when the signal processing component 82 performs an alarm, the display assembly 83 may further display the alarm signal and information about the alarm signal, such as the cause of the alarm, the detection data of the pressure sensor at the time of the alarm, and the position of the pressure sensor at the alarm.

[0096] In the seventh embodiment, the power supply harness 6 can include a plurality of harness placement portions 61, a plurality of harness connection portions 62, and one extension portion 63. The configuration of the power supply harness 6, the cooperation method between the power supply harness 6 and the electromagnet 2, the configuration of the first connection member 4, the cooperation method between the power supply harness 6 and the first connection member 4, the shape of the electromagnet 2, the shape of the internal fixed block 3, the cooperation method between the internal fixed block 3 and the protective sleeve 1, and the material of each member in the anastomosis opening protection device may be the same as those described in the first embodiment above, and for example, the structure and connection relationship of each member of the anastomosis opening protection device can adopt the structure and connection relationship of the members shown in Figures 4 to 10.

[0097] In this seventh embodiment, the second fixing assembly can be replaced with a structure including a magnetic particle covering layer, which can use the magnetic particle covering layer described in the fifth embodiment. The second fixing assembly can be replaced with a structure of an internal fixing block including magnetic particles in the sixth embodiment, and the internal fixing block and the magnetic particles can be the same as those in the sixth embodiment.

[0098] As shown in FIG. 26, this is a schematic diagram of the structure of the anastomosis port protection device in the eighth embodiment of the present invention applied to the intestinal tissue 9. The difference between this embodiment and the seventh embodiment is that the first fixing assembly does not include a first connecting member. The power supply harness 6 can simultaneously play the role of fixing the electromagnet 2 and supplying power to the electromagnet 2. The power supply harness 6 and the cooperation relationship between the electromagnet 2 and the power supply harness 6 can adopt the specific configuration in the first embodiment, but the present invention is not limited thereto. In other alternative embodiments, the power supply harness 6 can be designed as a different structure and can be connected to the electromagnet 2 in a different manner, all of which fall within the protection scope of the present invention. The second fixing assembly can adopt the specific configuration in the first embodiment.

[0099] As shown in FIG. 27, this is a schematic diagram of the structure of the anastomosis port protection device in the ninth embodiment of the present invention applied to the intestinal tissue 9. The difference between this embodiment and the seventh embodiment is that the anastomosis port protection device can be used to protect the anastomosis port of the upper part of the intestine. A set of electromagnets 2 is installed on the outer wall of the intestinal tissue 9 upstream of the anastomosis port, and an internal fixing block is installed inside the corresponding protective sleeve 1, and another set of electromagnets 2 is installed on the outer wall of the intestinal tissue 9 downstream of the anastomosis port, and an internal fixing block is installed inside the corresponding protective sleeve 1. In this structure, it is not necessary to extend to the anus, and the length of the protective sleeve 1, which is only placed at the appropriate position from the upstream to the downstream of the anastomosis port, can be greatly saved, and further, it makes the placement of the protective sleeve 1 during the operation and the removal of the protective sleeve 1 after the recovery of the anastomosis port more convenient, while the protective sleeve 1 can be fixed at the required position and ensure stability during use. The drive of the two sets of electromagnets 2 is connected via two power supply harnesses 6, respectively, and the two power supply harnesses 6 may be simultaneously connected to one current adjustment circuit 71 and one input power source 72 to simultaneously adjust the magnetism of the two sets of electromagnets 2 via one current adjustment circuit 71, or may be connected respectively to the two current adjustment circuits 71 to adjust the magnetism of the two sets of electromagnets 2 respectively. In this ninth embodiment, the configuration of the power supply harness 6, the cooperation between the power supply harness 6 and the electromagnets 2, and the configuration of the first connecting member 4 can all be the same as those of the first embodiment.

[0100] As shown in FIG. 28, this is a schematic diagram of a structure in which the anastomosis opening protection device in the tenth embodiment of the present invention is applied to intestinal tissue. The difference between this embodiment and the seventh embodiment is that the second fixing assembly further includes a second connecting member 5. When the second connecting member 5 is attached to the intestinal tissue 9, the second connecting member 5 surrounds the inner surface of the protection sleeve 1 to form a connecting ring structure, thereby fixing the protection sleeve 1 in the circumferential direction together with the internal fixing block 3. The second connecting member 5 forms a fixing ring for the protection sleeve 1 corresponding to the position of the first connecting member 4. The configuration of the second connecting member 5 of this embodiment and the cooperation between the second connecting member 5 and the internal fixing block 3 may be similar to the configuration of the fourth embodiment, and specifically, for example, the configurations shown in FIGS. 14 to 16 can be adopted. The configurations of the first connecting member 4 and the electromagnet 2 of this embodiment can be adopted to the configurations of the first embodiment described above.

[0101] The materials used in each embodiment of the anastomosis opening protection device of the present invention are all biocompatible materials.

[0102] The anastomosis protection device of the present invention has the following advantages.

[0103] The present invention protects the inner surface of the anastomosis opening through the protective sleeve, does not contaminate the anastomosis opening during the process of guiding the passage of the contents of the tubular tissue, and fixes the protective sleeve at a required position through the magnetic attraction between the electromagnetic generating member of the first fixing assembly and the second fixing assembly. In this device, only the magnetic attraction position between the electromagnetic generating member and the second fixing assembly is relatively fixed, and does not hinder normal peristalsis of the tubular tissue, provides a space for the tubular tissue to expand and contract in the circumferential direction, and ensures normal blood supply near the anastomosis opening. By providing the electromagnetic generating member and the power supply assembly, the presence or absence of magnetism in the electromagnetic generating member can be flexibly controlled by controlling the on / off of the power supply, and the magnitude of the magnetism in the electromagnetic generating member can be flexibly controlled by controlling the magnitude of the power supply current. The tubular tissue to which the anastomosis opening protection device of the present invention is applied may be the intestine or other tubular tissue in the human body, such as tubular tissue at other positions in the digestive tract.

[0104] The above is a detailed description of the present invention based on specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art to which the present invention pertains, some simple inferences or substitutions can be made without departing from the concept of the present invention, and all of them should be considered to be within the protection scope of the present invention.

Claims

1. 1. An anastomosis protection device comprising a protection sleeve, a first fixation assembly, a power supply assembly, and a second fixation assembly, The protective sleeve is disposed inside the tubular tissue so as to cover a position on the inner surface of the tubular tissue corresponding to the anastomosis opening; the first fixation assembly is disposed on an outer wall of the tubular tissue and includes an electromagnetic generating member; the power supply assembly is electrically connected to the electromagnetic generating member, and when power is supplied to the electromagnetic generating member, the electromagnetic generating member is energized and generates magnetism; The second fixing assembly is provided on an inner surface of the protective sleeve, and the second fixing assembly and the electromagnetic generating member of the first fixing assembly are fixed relatively to each other by magnetic attraction.

2. the first stationary assembly includes a plurality of spaced apart electromagnetic generating members; The plurality of electromagnetic generating members are sequentially arranged along the circumferential direction of the tubular tissue, 2. The anastomosis protection device of claim 1, wherein the second fixation assembly comprises a plurality of spaced apart internal fixation blocks, the internal fixation blocks being magnetic or magnetically attractable structures.

3. The power supply assembly includes a power supply harness; 3. The anastomosis opening protection device according to claim 2, wherein the power supply harness surrounds an outer wall of the tubular tissue and is electrically connected to the electromagnetic generating member.

4. the power supply harness includes a plurality of harness placement portions and a plurality of harness connection portions; The anastomosis protection device according to claim 3, characterized in that the harness mounting portion surrounds the exterior of the electromagnetic generating member, the harness connection portion is connected between two adjacent harness mounting portions, and the harness mounting portion and the harness connection portion are combined to form a ring-shaped structure that surrounds the outer wall of the tubular tissue.

5. The power supply harness further includes an extension portion, 5. The anastomosis opening protection device according to claim 4, wherein one end of the extension portion is connected to the harness connection portion, and the other end of the extension portion extends outside the body.

6. A first mounting groove is provided on a side surface of the electromagnetic generating member along a circumferential direction, and a harness placement portion of the power supply harness is fitted into the first mounting groove, or 5. The anastomosis port protection device according to claim 4, wherein a first mounting groove is provided along a circumferential direction on an inner surface of the harness mounting portion of the power supply harness, and the electromagnetic generating member is fitted into the first mounting groove.

7. The width of the harness placement portion is greater than the width of the harness connection portion, and / or 7. The anastomosis opening protection device according to claim 6, wherein the thickness of the harness mounting portion is greater than the thickness of the harness connecting portion.

8. The power supply harness is an elastic harness, 5. The anastomosis opening protection device according to claim 4, wherein the elasticity of said harness connecting portion is greater than the elasticity of said harness placing portion.

9. the first fixation assembly further comprising a first connecting member surrounding an outer wall of the tubular tissue; The anastomosis opening protection device according to claim 4, characterized in that the first connecting member comprises a first mounting portion for mounting the electromagnetic generating member, and a first connection portion connected between two adjacent first mounting portions, and the first mounting portion surrounds the outside of the harness mounting portion.

10. The power supply harness includes a first connection structure, the first connection structure is a structure provided at both ends of the power supply harness, The anastomosis protection device according to claim 3, characterized in that, when the first connection structure is connected, both ends of the power supply harness are connected and the power supply harness surrounds the outer wall of the tubular tissue, or, when the first connection structure is separated, both ends of the power supply harness are cut and the power supply harness detaches from the outer wall of the tubular tissue.

11. an output current of the power supply assembly is adjustable; The power supply assembly includes an input power source, a current regulating circuit, a control element, and a power supply harness; The anastomosis protection device according to claim 1, characterized in that the input power supply supplies power to the electromagnetic generating member via the current regulating circuit and the power supply harness in sequence, and the control element is used to adjust the output current value of the current regulating circuit.

12. The current regulating circuit includes a transformer, and the number of turns of a secondary coil of the transformer is adjustable; or 12. The anastomosis protection device of claim 11, wherein the current regulation circuit comprises a voltage divider circuit or a shunt circuit, and at least one shunt branch of the voltage divider circuit or the shunt circuit comprises a variable resistor.

13. Further comprising a signal collection assembly; The anastomosis opening protection device of claim 11, characterized in that the signal collection assembly comprises at least one pressure sensor and an A / D converter, the pressure sensor being provided on a side of the first fixation assembly facing the tubular tissue and / or a side of the second fixation assembly facing the protective sleeve, the pressure sensor being capable of collecting the magnitude of the magnetic attraction force, and the A / D converter converting an analog signal collected by the pressure sensor into a digital signal.

14. Further comprising a signal processing assembly; the signal processing assembly is configured to determine a drive current value of the power supply assembly based on a predetermined drive current change period and / or determine a drive current value of the power supply assembly based on detection data of the pressure sensor, thereby realizing a periodic adjustment of a fixing force between the first fixing assembly and the second fixing assembly; 14. The anastomosis protection device of claim 13, wherein the signal processing assembly is further configured to transmit a drive signal including the drive current value to the power supply assembly, the power supply assembly being configured to control an output current based on the drive current value.

15. The anastomosis protection device according to claim 14, characterized in that the power supply assembly comprises a plurality of electromagnetic drive modules, the electromagnetic drive modules correspond to the pressure sensors, and the signal processing assembly determines a drive current value of the corresponding electromagnetic drive module based on the detection data of the pressure sensor, and transmits a drive signal including the drive current value to the corresponding electromagnetic drive module.

16. The signal processing assembly further comprises: Comparing the detection data of the pressure sensor with a predetermined reference value and determining whether to issue an alarm depending on the comparison result, or Comparing the detection data of the plurality of pressure sensors and determining whether or not to issue an alarm depending on the comparison result, or The anastomosis port protection device according to claim 15, characterized in that the detection data of the pressure sensor is compared with a predetermined reference value, or the detection data of a plurality of the pressure sensors is compared, and a drive current value is generated according to the comparison result, and a drive signal including the drive current value is determined to be sent to the electromagnetic drive module.

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