CN214231418U

CN214231418U - Anastomotic stoma protection device

Info

Publication number: CN214231418U
Application number: CN202022714162.5U
Authority: CN
Inventors: 单腾; 陈望东; 曹元阳; 黄柊喻
Original assignee: Suzhou Tianchen International Medical Technology Co Ltd
Current assignee: Touchstone International Medical Science Co Ltd; Suzhou Tianchen International Medical Technology Co Ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-09-21
Anticipated expiration: 2030-11-20

Abstract

The utility model provides an identical mouthful protection device, include: the protective sleeve is positioned in the tubular tissue at a position corresponding to the anastomotic stoma; a first fixation assembly disposed on an outer wall of the tubular tissue, the first fixation assembly including an electromagnetic generating component; the electromagnetic driving assembly is used for supplying power to the electromagnetic generating component so that the electromagnetic generating component generates magnetism after being electrified, and the output current of the electromagnetic driving assembly is adjustable; and the second fixing component is arranged on the inner surface of the protective sleeve, and the second fixing component and the electromagnetic generating component of the first fixing component are relatively fixed through magnetic adsorption. The utility model discloses an electromagnetism takes place part and inside fixed subassembly magnetic adsorption, fixes the protective sheath of protecting the goodness fit in needs position, through adopting output current adjustable electromagnetic drive subassembly, can adjust the magnetic force size that the electromagnetism takes place the part and produce to the fixed subassembly of first fixed subassembly of adjustment and second is to the pressure of tubulose tissue.

Description

Anastomotic stoma protection device

Technical Field

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

Background

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

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

In addition, after the fixing band in the prior art surrounds the intestinal tract, the pressure of the fixing band on the intestinal tract is fixed, and adjustment cannot be realized.

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, an object of the utility model is to provide an anastomotic stoma protection device, through the magnetism absorption of electromagnetism emergence part and the fixed subassembly in inside, will protect the protective sheath of anastomotic stoma to fix in needs position, through adopting output current adjustable electromagnetic drive subassembly, can adjust the magnetic force size that electromagnetism emergence part produced to the pressure of the fixed subassembly of first fixed subassembly of adjustment and second to the tubulose tissue.

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

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

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

the electromagnetic driving assembly is used for supplying power to the electromagnetic generating component so that the electromagnetic generating component generates magnetism after being electrified, and the output current of the electromagnetic driving assembly is adjustable; and

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

In some embodiments, the electromagnetic drive assembly includes an input power source, a current regulating circuit, a control element, and a power supply harness, the input power source supplying power to the electromagnetic generating component through the current regulating circuit and the power supply harness in this order, and the control element adjusting an output current value of the current regulating circuit.

In some embodiments, the current regulation circuit comprises a transformer having an adjustable number of secondary windings, or

The current regulating circuit comprises a voltage dividing circuit or a shunt circuit, and at least one shunt branch in the voltage dividing circuit or the shunt circuit comprises a variable resistor.

In some embodiments, the device further comprises a signal acquisition assembly, wherein the signal acquisition assembly comprises at least one pressure sensor, and the pressure sensor is arranged on one side of the electromagnetic generation component facing the tubular tissue.

In some embodiments, the electromagnetic driving assembly further comprises a signal processing assembly, and the signal processing assembly is in wireless or wired communication with the pressure sensor and the electromagnetic driving assembly respectively.

In some embodiments, the electromagnetic driving assembly includes a plurality of electromagnetic driving modules, the electromagnetic driving modules correspond to the pressure sensors, and the signal processing assembly determines a driving current value of the corresponding electromagnetic driving module according to the detection data of the pressure sensors and transmits a driving signal including the driving current value to the corresponding electromagnetic driving module.

In some embodiments, the display module is further included, and the display module and the signal processing component are in communication in a wired or wireless manner.

In some embodiments, data is transmitted between the signal processing assembly and the pressure sensor and the electromagnetic drive assembly via signal lines or via wireless communication, respectively.

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

In some embodiments, the first fixing assembly includes a plurality of electromagnetic generating components arranged at intervals, the plurality of electromagnetic generating components are sequentially arranged along the circumferential direction of the tubular tissue, and the power supply harness surrounds the outer wall of the tubular tissue and is electrically connected with the electromagnetic generating components.

In some embodiments, the power supply harness includes:

a plurality of harness receiving portions surrounding an outside of the electromagnetic generating member;

a plurality of harness connecting portions connected between two adjacent harness carrying portions, the harness carrying portions and the harness connecting portions combining to form an annular structure surrounding an outer wall of the tubular tissue;

an extension part, one end of which is connected with the wire harness connection part and the other end of which is connected with the current adjustment circuit.

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

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

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

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

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

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

the first fixing assembly comprises an inner fixing block and a second connecting piece for bearing the inner fixing block, the second connecting piece is located on the inner surface of the protective sleeve, and the inner fixing block is a magnetic piece or a structure piece capable of being attracted by magnetism.

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

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

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

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

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

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

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

Drawings

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

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

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

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

fig. 4 is a first schematic diagram of a current regulating circuit according to a first embodiment of the present invention;

fig. 5 is a second schematic diagram of a current regulating circuit according to a first embodiment of the present invention;

fig. 6 is a third schematic diagram of a current regulating circuit according to a first embodiment of the present invention;

fig. 7 is a schematic structural diagram of an anastomotic stoma protecting device with a signal acquisition assembly and a signal processing assembly according to a first embodiment of the present invention;

fig. 8 is a schematic structural diagram of an anastomotic stoma protecting device of a second additional signal acquisition assembly and signal processing assembly according to the first embodiment of the present invention;

fig. 9 is a schematic view of the first fixing assembly and the power supply harness according to the first embodiment of the present invention;

fig. 10 is a schematic view of the first connector of the first embodiment of the present invention disconnected;

fig. 11 is a schematic view of the power supply harness disconnection of the first embodiment of the present invention;

fig. 12 is a front view of a power supply harness according to a first embodiment of the present invention;

fig. 13 is a side view of a power supply harness according to a first embodiment of the present invention;

fig. 14 is a front view of a first connecting member according to a first embodiment of the present invention;

fig. 15 is a side view of a first connector of the first embodiment of the present invention;

fig. 16 is a schematic structural view of an anastomotic stoma protector according to a second embodiment of the invention;

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

fig. 18 is a schematic structural view of an anastomotic stoma protector according to a fourth embodiment of the invention arranged in intestinal tract tissue;

fig. 19 is a schematic view of the engagement of the internal fixing block and the second connecting member according to the fourth embodiment of the present invention;

fig. 20 is a front view of a second connector according to a fourth embodiment of the present invention;

fig. 21 is a side view of a second connector according to a fourth embodiment of the present invention.

Reference numerals:

1 protective cover 5 second connector

11 support part 51 second bearing part

12 groove 52 second connecting part

2 electromagnet 6 supply harness

21 electromagnet fillet 61 pencil bearing part

22 first mounting groove 62 harness connection portion

3 internal fixation block 63 extension

31 inner fixed block round corner 64 connecting end point

32 second mounting groove 71 current regulating circuit

4 first connecting piece 72 input power

41 first bearing part 73 control element

42 first connection 81 pressure sensor

43 connecting projection 82 signal processing assembly

44 connecting groove 83 display module

9 intestinal tract tissue

Detailed Description

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

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

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

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

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

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

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

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

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

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

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

As shown in fig. 1, in this embodiment, the electromagnetic driving assembly includes a power supply harness 6, a current adjusting 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 adjusting circuit 71 and the power supply harness 6 in sequence, the control element 73 is used for adjusting an output current value of the current adjusting circuit 71, and the control element 73 may be a manual adjusting switch or an automatic control circuit (for example, implemented by using a programmable logic controller PLC). The input power source 72 may be a rechargeable battery or a non-rechargeable battery, and the current adjusting circuit 71 may supply an ac current or a dc current to the power supply harness 6, and the electromagnet 2 may be an ac electromagnet or a dc electromagnet.

The power supply wire bundle 6 surrounds the outer wall of the intestinal tract tissue 9 and is electrically connected with each electromagnet 2. The power supply harness 6 may be electrically connected to an input power source 72, the input power source 72 supplying power to the conductive windings of the electromagnet 2 via the current regulating circuit 71 and the power supply harness 6, so that the electromagnet 2 generates magnetism. The electromagnet 2 may have a structure that it is magnetized when it is energized and demagnetized quickly when it is de-energized. When the electromagnet 2 needs to be fixed on the outer wall of the intestinal tissue 9, the power supply wire bundle 6 is energized through the current regulating circuit 71 by the input power source 72, so that the electromagnet 2 and the internal fixed block 3 are magnetically attracted. During use, the power supply harness 6 continuously supplies power to the electromagnet 2. When the electromagnet 2 needs to be removed from the outer wall of the intestinal tissue 9, the power supply to the power supply wire bundle 6 from the input power source 72 can be cut off, so that the electromagnet 2 loses its magnetism. The current regulating circuit 71 can control the magnitude of the power supply current in the power supply harness 6, thereby controlling the magnitude of the magnetic strength of the electromagnet 2.

The current adjusting circuit 71 may adopt various different circuit structures, and the magnitude of the output current can be adjusted under the input driving signal. For example, the current adjusting circuit may include a transformer, the number of turns of a secondary winding of the transformer is adjustable, the primary winding of the transformer inputs the supply current of the input power source 72, the secondary winding of the transformer inputs the supply current to the power supply harness 6, and the purpose of adjusting the supply current can be achieved by adjusting the number of turns of the secondary winding of the transformer. For another example, the current adjusting circuit may include a shunt circuit, at least one shunt branch of the shunt circuit includes a variable resistor, and the output current of the shunt circuit may be adjusted by adjusting a resistance value of the variable resistor.

Fig. 4 to 6 show the structures of three types of current adjusting circuits 71, and here, the structure is merely an example of the adjusting principle circuit of the current adjusting circuit 71. In practical applications, the current regulating circuit 71 may include one or more structures, and may further include other required circuit components, for example, a filter circuit, a voltage stabilizing circuit, a current detecting circuit, a voltage detecting circuit, and the like may be further added to the circuits of fig. 4 to 6.

Fig. 4 is a schematic diagram of a first current regulation circuit in this embodiment. The current regulating circuit comprises a transformer T, a power Vin is input between two input terminals of a primary winding P of the transformer T, and a power Vout is output between output terminals O4 and O5 of a secondary winding S of the transformer T. Four output end points O1, O2 and O3 are led out from the secondary winding S, an adjustable contact is arranged at the first end of the switch K, the other end of the switch K is connected with the output power-off O4, the adjustable contact of the switch K is controlled to be electrically connected with different output end points O1, O2 and O3, the voltage value of an output power Vout between the output end points O4 and O5 can be adjusted, under the condition that the number of turns of the coil of the electromagnet 2 is not changed, the voltage Vout input into the electromagnet 2 is changed, and the current value transmitted to the electromagnet 2 by the current adjusting circuit is also changed. In the structure, the number of turns of the secondary winding S is equivalent to three adjustable gears, and only two adjustable gears can be arranged or more gears can be further increased.

In this embodiment, the control element may be a manual switch or an automatic control circuit. For example, when the current adjusting circuit comprises a transformer T with an adjustable number of turns of a secondary winding, the control element is a gear switch capable of manually adjusting the switch K, each gear of the gear switch corresponds to different positions of an adjustable contact of the switch K, and the number of turns of the secondary winding of the transformer T can be adjusted by adjusting the gear switch. In another embodiment, the control element may also be implemented by a control circuit, and the control circuit may generate a control signal to control the adjustable contact of the switch K to be connected or disconnected with the different output terminals O1, O2, and O3, so as to adjust the number of turns of the secondary side of the transformer T.

Fig. 5 is a schematic diagram of a second current regulation circuit in this embodiment. One MOS (metal-oxide semiconductor field effect) switching tube M1, M2 and M3 is respectively arranged between the secondary winding S and three output terminals O1, O2 and O3, and the conduction between the source and drain of the switching tubes M1, M2 and M3 can be respectively controlled by respectively controlling the gate voltage of the MOS switching tubes, so that different output voltages Vout can be realized. For example, when only the source and drain of the switch M1 are turned on, the output voltage Vout corresponds to the voltage between the output terminals O1 and O4, when only the source and drain of the switch M2 are turned on, the output voltage Vout corresponds to the voltage between the output terminals O2 and O4, and when only the source and drain of the switch M3 are turned on, the output voltage Vout corresponds to the voltage between the output terminals O3 and O4. Under the condition that the number of turns of the coil of the electromagnet 2 is not changed, the value of the current transmitted to the electromagnet 2 by the current regulating circuit is changed by changing the voltage Vout input to the electromagnet 2. In the structure, the number of turns of the secondary winding S is equivalent to three adjustable gears, and only two adjustable gears can be arranged or more gears can be further increased.

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 capable of manually adjusting the gate voltage of each switching tube, or may be a control circuit capable of automatically adjusting the gate voltage of each switching tube.

Fig. 6 is a schematic diagram of a third current regulating circuit in this embodiment. The voltage division is realized through the resistor R1 and the variable resistor R2 which are connected in series, when the resistance value of the variable resistor R2 is adjusted, the current of the output voltage Vout is changed, and under the condition that the number of turns of the coil of the electromagnet 2 is not changed, the value of the current which is transmitted to the electromagnet 2 by the current adjusting circuit is changed. In another alternative embodiment, at least two resistors connected in parallel may be used to implement the shunt circuit, where at least one resistor is a variable resistor, and the output current is adjustable by adjusting the current value of the variable resistor.

In this embodiment, the control element may be a manual switch or an automatic control circuit. For example, the control element is a switch capable of manually adjusting the variable resistor R2, the resistance value of the variable resistor R2 connected to the current adjusting circuit can be adjusted by turning the switch, and the control element may also be a control circuit capable of automatically adjusting the variable resistor R2.

It should be understood that, in the above embodiments, only the voltage or current regulating circuit is listed as a circuit for regulating according to the gear, and may also be a voltage regulating circuit for stepless voltage regulation, or a variable resistance circuit for stepless speed regulation.

As shown in fig. 7 and 8, in this embodiment, the anastomotic stoma protecting device may further include a signal acquisition assembly, where the signal acquisition assembly includes at least one pressure sensor 81, where the pressure sensor 81 is disposed on a side of the electromagnet 2 facing the tubular tissue and/or a side of the inner fixing block 3 facing the protective sheath, or the pressure sensor 81 is disposed on the protective sheath 1 at a position corresponding to the first fixing assembly or the second fixing assembly. Fig. 7 shows a configuration in which a 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. 8 shows a structure in which a pressure sensor 81 is provided on the outer side surface of the internal fixed blocks 3, and the pressure sensor 81 may be provided on the outer side surface of one or more internal fixed blocks 3. In another embodiment, a pressure sensor 81 may be provided on the inner surface of part or all of the electromagnets 2, and a pressure sensor 81 may be provided on the outer surface of part or all of the internal fixed block 3. The pressure sensor 81 can collect the pressure between the electromagnet 2 and the internal fixing block 3, i.e. the magnitude of the magnetic attraction, thereby realizing the monitoring of the magnetic attraction. The signal processing component may further include an a/D converter that converts an analog signal collected by the pressure sensor 81 into a digital signal.

As shown in fig. 7 and 8, the anastomotic stoma protecting device may further include a signal processing component 82, where the signal processing component 82 may adjust a driving current value of the electromagnetic driving component and then transmit a driving signal including the driving current value to the electromagnetic driving component, and the electromagnetic driving component is configured to control an output current according to the driving current value. In particular, the control element 73 comprises a control circuit that enables automatic current control, the drive signal being sent by the signal processing component 82 to the control element 73. The control element 73 may adjust the output current value of the current adjusting circuit 71 according to the driving signal, for example, in the structure of fig. 4, the control element 73 adjusts the adjustable contact of the switch K to be electrically connected to the corresponding output terminal O1, O2 or O3 according to the relationship between the driving current value and the shift position of the switch K, in the structure of fig. 5, the control element 73 controls the gate voltages of the switching tubes M1, M2 and M3 according to the relationship between the driving current value and the shift position, so as to adjust the on or off of the switching tubes M1, M2 and M3, thereby achieving the output current adjustment of the current adjusting circuit 71, and in the structure of fig. 6, 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, thereby achieving the output current adjustment of the current adjusting circuit 71.

The signal processing component 82 may take different forms when determining the drive current value. For example, in one embodiment, the signal processing component 82 may determine the driving current value according to a preset driving current variation period, so as to realize the periodic adjustment of the magnetic attraction force between the electromagnet 2 and the internal fixing block 3, that is, the periodic adjustment of the fixing acting force between the first fixing component and the second fixing component. In another embodiment, the signal processing component 82 may also determine the driving current value according to the detection data of the pressure sensor 81, for example, the signal processing component 82 may compare the detection data of the pressure sensor 81 with a preset reference value, if the detection data of the pressure sensor 81 is smaller than the preset reference value, it indicates that the magnetic attraction force is smaller, and the driving current value may be increased, and conversely, the driving current value may be decreased. Further, when the difference between the detection data of the pressure sensor 81 and the preset reference value is greater than the first preset threshold, the signal processing component may alarm, for example, control an alarm to send an alarm sound or an alarm light, or send an alarm signal to the user terminal.

Further, the signal processing module 82 may compare the detection data of the pressure sensor 81 with a preset reference value, calculate an absolute value of a difference between the detection data of the pressure sensor 81 and the preset reference value, determine whether the absolute value of the difference is greater than a preset difference threshold, if so, indicate that the difference between the actual detection data and the preset reference value is large, and the signal processing module 82 needs to calculate a driving current value according to the difference between the detection data of the pressure sensor 81 and the preset reference value, and send a driving signal including the driving current value to the control unit 73. If the absolute value of the difference is smaller than or equal to the preset difference threshold, the error is within the acceptable range, and the driving current value does not need to be calculated according to the difference. When there are a plurality of pressure sensors 81, the signal processing module 82 may compare the detection data of the plurality of pressure sensors 81, determine whether an error of the detection data of every two pressure sensors 81 is greater than a preset error threshold, and if so, adjust the output data of the current adjusting circuit 71 corresponding to one or more of the pressure sensors 81, that is, the signal processing module 82 generates a corresponding driving signal and sends the driving signal to the corresponding control element 73.

When a plurality of electromagnets 2 and a plurality of pressure sensors 81 are provided, the plurality of electromagnets 2 may be supplied with power by using one integrated current adjusting circuit 71, or a plurality of current adjusting circuits 71 may be provided to supply power to each of the electromagnets 2. When the current adjusting circuit 71 is integrally provided, the signal processing unit 82 may determine the drive current value based on the average detection data of the plurality of pressure sensors 81. Further, when the difference between the plurality of pressure sensors 81 is greater than a second preset threshold, the signal processing component 82 may alarm, for example, control an alarm to emit an alarm sound or an alarm light, or send an alarm signal to the user terminal. When a plurality of current adjusting circuits 71 are provided to supply power to each electromagnet 2, the signal processing module 82 may determine a driving current value according to the detection data of each pressure sensor 81, and then output a driving signal to the corresponding current adjusting circuit 71.

Data can be transmitted between the signal processing assembly 82 and the pressure sensor 81 and the current regulating circuit 71 of the electromagnetic driving assembly through signal lines. The signal line may be arranged around the outer wall of the intestinal tissue 9, or may be arranged in other ways. In another embodiment, the signal processing module 82 and the pressure sensor 81 and the current regulating circuit 71 of the electromagnetic driving module may also transmit data through wireless communication. For example, wireless communication modules are added at the pressure sensor 81 and at the current adjusting circuit 71, respectively. The signal processing component 82 may also communicate with the pressure sensor 81 via a signal line and communicate with the current regulation circuit 71 via wireless communication, or communicate with the pressure sensor 81 via wireless communication and communicate with the current regulation circuit 71 via a signal line. The signal processing module 82 may further be connected to a display module 83, which may display the monitored pressure value of the pressure sensor 81. The signal processing component 82 may be implemented by using a single processor chip, the signal processing component 82 and the display module 83 may be implemented by using a user terminal, such as a mobile phone, a notebook, a tablet computer, a desktop computer, or the like, and the display module 83 may be implemented by using a single display screen. The display module 83 and the signal processing component 82 can communicate with each other through signal lines or wireless communication. The display module 83 may further display the driving current value to display the control state of the electromagnetic driving component in real time. Further, when the signal processing component 82 performs an alarm, the display module 83 may further display an alarm signal and information related to the alarm signal, such as a reason for the alarm, detection data of the pressure sensor at the time of the alarm, a position of the pressure sensor at the time of the alarm, and the like.

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

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

As shown in fig. 9, the power supply harness 6 further includes an extension portion 63, one end of the extension portion 63 is connected to the harness connection portion 62, the other end of the extension portion 63 extends out of the body, and the extension portion 63 may be electrically connected to a current adjusting circuit 71.

In this embodiment, in order to facilitate the installation and removal of the power supply harness 6 at the intestinal tissue 9, the power supply harness 6 includes a first connecting structure. As shown in fig. 11, when the power supply harness 6 is installed at the intestinal tissue 9, the power supply harness 6 may be connected at the first connecting structure to surround the outer wall of the intestinal tissue 9, for example, to form a closed loop structure. The loop structure of the power supply harness 6 may also be broken at the connection end 64, so that the power supply harness 6 may be formed into a non-closed loop or strip structure, and thus may be detached from the outer wall of the intestinal tissue 9. The connection of the connection end point 64 of the power supply harness 6 can be by means of a buckle, a hook, an adhesive, an additional fixing member, and the like, and all belong to the protection scope of the present invention. The power supply harness 6 can be applied in two ways: one way is that the supply cable 6 is initially a closed loop, breaking its first connection structure away from the intestinal tissue 9 when it needs to be removed from the intestinal tissue 9; alternatively, the supply cable bundle 6 is initially in an unsealed configuration, which is mounted on the outside of the intestinal tissue 9 and then closed into a loop at the junction.

As shown in fig. 12, the width w11 of the harness carrying portion 61 may be larger than the width w13 of the harness connecting portion 62. From this, pencil supporting part 61 can bear the electro-magnet 2 of width broad to realize electro-magnet 2 to the better fixed action of protective sheath 1, and pencil connecting portion 62's width is less, can improve pencil connecting portion 62's elastic deformation ability, to intestinal tissue 9's wriggling influence greatly reduced. Further, the width w12 of the annular wall of the harness support portion 61 may be greater than the width w13 of the harness connection portion 62, which improves the connection stability of the harness support portion 61 and the electromagnet 2. As shown in fig. 13, the thickness t11 of the harness carrying portion 61 may be substantially equal to the thickness t12 of the harness connecting portion 62. In another alternative embodiment, the thickness t11 of the harness carrying part 61 may also be greater than the thickness t12 of the harness connecting part 62, so as to carry a thicker electromagnet 2, and further improve the elastic deformation capability of the harness connecting part 62, which may provide a better circumferential expansion and contraction space. The thickness direction corresponds to a radial direction of the power supply harness 6 after forming the annular structure (corresponding to a radial direction of the protective sheath 1).

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

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

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

As shown in fig. 10, the first connector 4 is further provided with a connecting structure, and the first connector 4 can be connected at the second connecting structure to surround the outer wall of the intestinal tissue 9 or disconnected at the second connecting structure to be separated from the outer wall of the intestinal tissue 9. The connection structure shown in fig. 10 includes a connection protrusion 43 and a connection groove 44 respectively disposed at both end portions, when the connection protrusion 43 is fitted in the connection groove 44, the first connection member 4 is ring-shaped, and when the connection protrusion 43 is separated from the connection groove 44, the first connection member 4 is bar-shaped or other unclosed shape. In other alternative embodiments, the connecting structure may take other forms, such as providing a connecting ring and a connecting hook at two ends respectively, hooking or separating the two to achieve two states of the first connecting member 4, or providing an adhesive structure at two ends, achieving two states of the first connecting member 4 by adhesion or adhesive separation, and so on.

As shown in fig. 14, the width w21 of the first bearing part 41 is greater than the width w23 of the first connecting part 42. From this, first bearing part 41 can bear the electro-magnet 2 of width broad to realize electro-magnet 2 to the better fixed action of protective sheath 1, and first connecting portion 42's width is less, can improve first connecting portion 42's elastic deformation ability, to intestinal tissue 9's wriggling influence greatly reduced. Further, the width w22 of the annular wall of the first bearing part 41 may be greater than the width w23 of the first connection part 42, so as to improve the connection stability of the first bearing part 41 and the electromagnet 2. In this embodiment, as shown in fig. 15, the thickness t21 of the first bearing part 41 and the thickness t22 of the first connecting part 42 are substantially equal. In another alternative embodiment, the thickness t21 of the first bearing part 41 may be greater than the thickness t22 of the first connecting part 42. Therefore, the first bearing part 41 can bear the electromagnet 2 with a thicker thickness, so that the electromagnet 2 can be better fixed on the protective sleeve 1. In addition, the thickness of the first connecting portion 42 is small, and the elastic deformability of the first connecting portion 42 can be further improved. The thickness direction corresponds to the radial direction of the first connecting element 4 after forming the annular structure (corresponding to the radial direction of the protective sleeve 1).

The first bearing portion 41 and the first connecting portion 42 are integrally formed, and the first bearing portion 41 is a hollow annular structure surrounding the electromagnet 2, that is, a mounting hole is formed in the first bearing portion 41, and the electromagnet 2 is embedded in the mounting hole. In other alternative embodiments, the first bearing portion 41 may have other shapes, and may be formed separately from and fixedly connected to the first connecting portion 42. As shown in fig. 9, a circumferential first mounting groove 22 is at least partially formed in a side surface of the electromagnet 2, and the annular first bearing part 41 is fitted in the first mounting groove 22. In another alternative embodiment, a circumferential mounting groove may be at least partially formed inside an edge of the hollow annular structure of the first bearing part 41, and a side surface of the electromagnet 2 is embedded in the mounting groove, so that the electromagnet 2 and the first bearing part 41 are stably connected. In this embodiment, the first bearing part 41 is located outside the harness bearing part 61 of the power supply harness 6.

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

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

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

Fig. 16 is a schematic structural view of the anastomotic stoma protector according to the second embodiment of the present invention applied to intestinal tract tissue. In this embodiment, the first securing assembly does not include a first connector. The power supply harness 6 can simultaneously serve to fix the electromagnet 2 and supply power to the electromagnet 2. The power supply harness 6 may adopt the specific structure in the first embodiment described above, but the present invention is not limited thereto. In other alternative embodiments, the power supply harness 6 may be designed in other structures, and may be connected to the electromagnet 2 in other manners, all of which fall within the scope of the present invention.

As shown in fig. 17, it is a schematic structural view of the anastomotic stoma protecting device according to the third embodiment of the present invention applied to intestinal tract tissue. In this embodiment, the stoma protector may be used for stoma protection in high intestinal tracts. The outer wall of the intestinal tract tissue 9 on the upstream side of the anastomotic stoma is provided with a group of electromagnets 2, an internal fixing block is correspondingly arranged inside the protective sleeve 1, the outer wall of the intestinal tract tissue 9 on the downstream side of the anastomotic stoma is provided with another group of electromagnets 2, and an internal fixing block is correspondingly arranged inside the protective sleeve 1. On one hand, the structure can greatly save the required length of the protective sleeve 1, and the protective sleeve 1 is only arranged at a proper position from the upstream to the downstream of the anastomotic orifice and does not need to extend to the anus all the time; and more make things convenient for placing of protective sheath 1 and removing of protective sheath 1 after the anastomotic stoma resumes in the operation process, on the other hand can fix protective sheath 1 in required position better, guarantees the stability in the use. The two groups of electromagnets 2 are driven to be connected through two power supply wire bundles 6 respectively, the two power supply wire bundles 6 can be simultaneously connected to a current regulating circuit 71 and an input power supply 72, the magnetism of the two groups of electromagnets 2 can be simultaneously regulated through one current regulating circuit 71, and the magnetism of the two groups of electromagnets 2 can also be respectively connected to the two current regulating circuits 71 to respectively regulate the magnetism of the two groups of electromagnets 2.

As shown in fig. 18 to 21, it is a schematic structural view of the anastomotic stoma protection device according to the fourth embodiment of the present invention applied to the intestinal tract tissue. In this embodiment, the second fixing assembly further comprises a second connecting piece 5. When the second connector 5 is installed at the intestinal tract assembly 9, the second connector 5 surrounds the inner surface of the protective sleeve 1 to form a connecting ring structure, so that the protective sleeve 1 is circumferentially fixed together with the inner fixing block 3. The second connecting piece 5 corresponds to the first connecting piece 4 in position, and forms a fixing ring for the protective sleeve 1. As shown in fig. 19, the second connecting member 5 includes a second bearing portion 51 and a second connecting portion 52. The second bearing portions 51 correspond to the inner fixing blocks 3 one to one, and bear the corresponding inner fixing blocks 3. The second connecting portion 52 is connected between two adjacent second bearing portions 51. When the second connecting piece 5 is arranged at the intestinal tract assembly 9, the second connecting piece 5 is circumferentially telescopic. Further, the second connecting member 5 may be an elastic connecting member, at least the second connecting portion 52 of which is elastic. Therefore, when the intestinal tract peristalsis, the second connecting piece 5 can elastically deform along with the peristalsis of the intestinal tract, the limiting pressure cannot be applied to the intestinal tract, and the telescopic movement space is provided for the intestinal tract. For example, the second connecting member 5 may be an elastic connecting member made of rubber, silicon rubber, or the like and having a certain elasticity. The second link 5 may be disposed in parallel to the support portion 11. The second connector 5 may be a closed ring structure or a connector with a connector, and when installed at the intestinal tract assembly 9, the connectors are connected end to form a connecting ring. When both the second connection portion 52 and the second bearing portion 51 have elasticity, when the same tensile force is applied to the second bearing portion 51 and the second connection portion 52, the amount of elastic deformation of the second bearing portion 51 may be smaller than the amount of elastic deformation of the second connection portion 52. So that the second bearing part 51 can better fix the inner fixing block 3, and the second connecting part 52 can provide better circumferential telescopic capability.

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

As shown in fig. 20, in this embodiment, the width w31 of the second bearing part 51 is greater than the width w33 of the second connecting part 52. From this, the inside fixed block 3 of width broad can be born to the second bearing part 51 to realize inside fixed block 3 to the better fixed action of protective sheath 1, and the width of second connecting portion 52 is less, can improve the elastic deformation ability of second connecting portion 52, to the peristaltic influence greatly reduced of intestinal tissue 9. Further, the width w32 of the annular wall of the second bearing part 51 may be greater than the width w33 of the second connecting part 42, so as to improve the stability of the connection between the second bearing part 51 and the internal fixing block 3. In this embodiment, as shown in fig. 21, the thickness t31 of the second carrier part 51 and the thickness t32 of the second connecting part 52 are substantially equal. In another alternative embodiment, the thickness t31 of the second carrier part 51 may be greater than the thickness t32 of the second connecting part 52. Therefore, the second bearing part 51 can bear the inner fixing block 3 with thicker thickness, so that the inner fixing block 3 can be better fixed on the protective sleeve 1. In addition, the thickness of the second connection portion 52 is small, and the elastic deformability of the second connection portion 52 can be further improved.

As shown in fig. 19, the second bearing portion 51 and the second connecting portion 52 are integrally formed, and the second bearing portion 51 is a hollow ring structure surrounding the inner fixing block 3, that is, the second bearing portion 51 is provided with a mounting hole, and the inner fixing block 3 is embedded in the mounting hole. In order to more conveniently mount and remove the internal fixing block 3 to and from the second connector 5, each side wall of the internal fixing block 3, which is attached to the inner wall of the mounting hole, has a rounded corner 31 structure. In other alternative embodiments, the second bearing portion 51 may have other shapes, and may be formed separately from and fixedly connected to the second connecting portion 52. As shown in fig. 19, a circumferential second mounting groove 32 is at least partially formed on a side surface of the internal fixing block 3, and the annular second bearing part 51 is inserted into the second mounting groove 32. In another alternative embodiment, a second mounting groove in the circumferential direction of a second fixing block may be at least partially disposed inside an edge of the hollow annular structure of the second bearing part 51, and a side surface of the internal fixing block 3 is embedded in the second mounting groove, so that the internal fixing block 3 and the second bearing part 51 are stably connected.

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

The utility model discloses the fifth embodiment still provides an identical mouthful protection device with magnetic particle coating. In this embodiment, the second fixing component includes a magnetic particle coating coated on the inner surface of the protective sheath 1, the position of the magnetic particle coating corresponds to the electromagnet 2, and the magnetism of the magnetic particle coating is opposite to the magnetism of the electromagnet 2 when the electromagnet is powered on. The magnetic particle coating layer may be coated on the inner surface of the protective cover 1 by making magnetic slurry of magnetic particles with a binder, a solvent, or the like. Therefore, the second fixing component and the protective sleeve 1 form an integral structure, and can be placed at a required position inside the intestinal tissue 9 together during operation, and the anastomotic stoma can be taken out of the intestinal tissue 9 together after recovery after operation. The second fixing member structure of this embodiment may also be combined with the structure of the electromagnet 2 of each of the above embodiments. Similarly, by controlling the distribution density of the magnetic particles and the total number of the magnetic particles, the purpose of controlling the magnitude of the magnetic attraction force between the electromagnet 2 and the magnetic particle coating can be achieved. Furthermore, the magnetic particle coating is integrated with the protective sheath 1, eliminating the steps of mounting a second fixing assembly on the protective sheath 1 and removing the second fixing assembly from the protective sheath 1. And, the second fixed subassembly adopts the mode of magnetic particle coating, and the space that the inside of protective sheath 1 took is littleer.

The utility model discloses the sixth embodiment still provides an identical mouthful protection device with magnetic particle. In this embodiment, all or a part of the surface of the inner fixing block 3 is coated with a magnetic particle coating or internally distributed with magnetic particles. The magnetic particles of each internal fixed block 3 have the same magnetism and are opposite to the magnetism of the electromagnet 2.

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

To sum up, the utility model provides an identical mouthful protection device has following advantage:

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

Claims

1. An anastomotic stoma protection device, comprising:

2. The stoma protection device according to claim 1, wherein the electromagnetic drive assembly includes an input power source, a current regulation circuit, a control element, and a power supply harness, the input power source supplying power to the electromagnetic generation component through the current regulation circuit and the power supply harness in this order, the control element adjusting an output current value of the current regulation circuit.

3. The anastomotic stoma protection device according to claim 2, wherein the current regulating circuit comprises a transformer having an adjustable number of secondary windings, or

4. The anastomotic stoma protection device according to claim 1, further comprising a signal acquisition assembly comprising at least one pressure sensor arranged on a side of the first fixation assembly facing the tubular tissue and/or on a side of the second fixation assembly facing the protective sheath.

5. The anastomotic stoma protection device according to claim 4, further comprising a signal processing assembly in wireless or wired communication with the pressure sensor and the electromagnetic drive assembly, respectively.

6. The anastomotic stoma protection device according to claim 5, wherein the electromagnetic driving assembly comprises a plurality of electromagnetic driving modules corresponding to the pressure sensor, and the signal processing assembly determines a driving current value of the corresponding electromagnetic driving module according to the detection data of the pressure sensor and transmits a driving signal including the driving current value to the corresponding electromagnetic driving module.

7. The anastomotic stoma protection device according to claim 5, further comprising a display module in wired or wireless communication with the signal processing assembly.

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

9. The anastomotic stoma protection device according to claim 2, wherein the first fixing assembly comprises a plurality of electromagnetic generating components arranged at intervals, the electromagnetic generating components are sequentially arranged along the circumferential direction of the tubular tissue, and the power supply harness surrounds the outer wall of the tubular tissue and is electrically connected with the electromagnetic generating components.

10. The stoma protection device according to claim 9, wherein the power supply bundle includes:

11. The anastomotic stoma protection device according to claim 10, wherein a first mounting groove in a circumferential direction is provided in a side surface of the electromagnetic generation component, and the wire harness bearing part of the power supply wire bundle is embedded in the first mounting groove; or the like, or, alternatively,

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

13. The stoma protection device according to claim 10, wherein the first fixation assembly further includes a first connector surrounding an outer wall of the tubular tissue, the first connector including a first bearing portion carrying the electromagnetic generating component and a first connection portion connected between two adjacent first bearing portions, the first bearing portions surrounding an outer portion of the wire harness bearing portion.

14. The stoma protection device according to claim 9, wherein the power supply bundle includes a first connection structure at which the power supply bundle may be connected to encircle the outer wall of the tubular tissue or disconnected therefrom.

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

16. The stoma protection device according to claim 13 or 15, wherein the first connection piece includes a second connection structure, the first connection piece being connectable at the second connection structure to encircle the outer wall of the tubular tissue or being disconnectable at the second connection structure to detach from the outer wall of the tubular tissue.

17. The anastomotic stoma protection device according to claim 15, wherein the first attachment element, the second attachment element and/or the internal fixation block are at least partially of a bioabsorbable material.

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