Abdominal cavity magnetic film and abdominal cavity space magnetic supporting system

Abstract

The utility model relates to the technical field of surgical instruments, in particular to an abdominal cavity magnetic film which comprises a flexible carrier, and a magnetic material is arranged on the flexible carrier. An abdominal cavity space magnetic force supporting system comprises the abdominal cavity magnetic film and further comprises a suspension supporting structure and a magnetic field bearing structure, magnetic parts are distributed on one face of the magnetic field bearing structure, and mutual magnetic attraction force can be generated between the magnetic parts and the abdominal cavity magnetic film. The suspension supporting structure is used for connecting and fixing the magnetic field bearing structure. The utility model has the beneficial effects that the abdominal wall of a patient is lifted up in a magnetic adsorption manner, and the operation field is exposed, so that the abdominal cavity gap and the operation space are enlarged; the magnetic field device is attached to the outer surface of the abdominal cavity of the patient from top to bottom to form stable magnetic mutual attraction force. And the stress surface is uniform, stress concentration distribution points cannot be formed, and mechanical damage to abdominal skin muscular tissue and the like cannot be caused.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical instruments, in particular to an abdominal magnetic membrane and an abdominal space magnetic force support system. Background Art

[0002] Laparoscopic surgery is a minimally invasive surgical method that has developed rapidly in recent years. It has the advantages of small surgical wounds and fast postoperative recovery. Laparoscopic surgery involves making a hole in the patient's abdomen and then placing a laparoscope in the patient's abdominal cavity. The doctor uses the micro camera carried by the laparoscope to observe the internal conditions of the abdominal cavity. The doctor observes the image and uses relevant instruments to perform the surgery. However, due to the small operating field of laparoscopic surgery in the abdominal cavity and the disadvantages of tissue obstruction, it is often necessary to expand the abdominal cavity to expose the field of view required for the surgical operation.

[0003] Currently, common methods for expanding the abdominal cavity space include:

[0004] (1) Inflatable laparoscopy, such as patents CN115530745A and CN114947999A; that is, using a pneumoperitoneum machine to fill the abdominal cavity with carbon dioxide, the abdominal wall is lifted by carbon dioxide, the abdominal cavity space is expanded, and the abdominal cavity airtightness is maintained by surgical instruments to establish a sufficient cavity between the abdominal wall and the abdominal organs. However, this method has the risk of causing carbon dioxide-related complications, such as the formation of gas embolism easily after high-pressure carbon dioxide gas enters the blood, and it is difficult for elderly patients with poor cardiopulmonary function to adapt to the cardiopulmonary function load brought by high pneumoperitoneum pressure. There are certain surgical contraindications and high surgical risks; high-pressure carbon dioxide gas will form subcutaneous emphysema after diffusing into the subcutaneous tissue; in addition, airtightness needs to be maintained during the operation, and the process of removing the specimen from the body is relatively complicated. In addition to establishing an operating hole in the patient's abdominal wall, an additional pneumoperitoneum hole needs to be established. Once the airtight equipment is damaged during the operation, it will lead to the inability to maintain high pneumoperitoneum pressure, affecting the normal operation.

[0005] (2) Suspension laparoscope, such as CN219557407U and CN219166495U; the abdominal cavity is mechanically pulled up by the device to increase the abdominal cavity space. In this method, the abdominal cavity operation space formed during the mechanical pulling process is irregular, and stress concentration is easily formed at the anchor point, which poses a risk of damaging the muscles at the anchor point. In addition, the pulling and operation space is small, so it can only be applied to some surgeries with fewer organs.

[0006] In view of the many problems existing in the prior art of expanding the abdominal cavity space, it is necessary to propose a new device for expanding the abdominal cavity space. Utility Model Content

[0007] In order to solve the above-mentioned deficiencies of the existing devices for expanding the abdominal cavity space in laparoscopic surgery, the utility model provides a peritoneal magnetic membrane, which can easily lift the patient's abdominal wall, expand the abdominal cavity space, and help expose the surgical field of view and surgical space by adsorbing the peritoneal magnetic membrane inserted into the abdominal cavity through external magnetic parts.

[0008] A peritoneal magnetic membrane comprises a flexible carrier on which magnetic material is arranged.

[0009] Furthermore, the magnetic material is embedded in the upper surface of the flexible carrier or is located in the interlayer of the flexible carrier or is integrally formed with the flexible carrier.

[0010] Furthermore, a drainage groove is provided on the surface of the flexible carrier.

[0011] Furthermore, a magnetic anchor point area is provided at the edge of the flexible carrier.

[0012] Furthermore, the flexible carrier is polygonal, circular or elliptical.

[0013] Furthermore, more than one reserved operation hole is distributed on the flexible carrier.

[0014] Furthermore, the reserved operation hole is polygonal, circular or elliptical.

[0015] The utility model also provides an abdominal space magnetic support system, including the above-mentioned abdominal magnetic membrane, and also including a suspension support structure and a magnetic field bearing structure. One side of the magnetic field bearing structure is distributed with magnetic parts, and magnetic mutual attraction can be generated between the magnetic parts and the abdominal magnetic membrane; the suspension support structure is used to connect and fix the magnetic field bearing structure.

[0016] Furthermore, the magnetic components are distributed in a Halbach array on the magnetic field bearing structure.

[0017] Furthermore, the magnetic field bearing structure is in a downward arc shape or a flat plate shape.

[0018] Furthermore, the magnetic field bearing structure is an elastic structure, and an arc adjustment device matching the magnetic field bearing structure is provided on the suspension support structure.

[0019] The use principle of the utility model is: during the operation, an incision is made in the patient's abdominal wall, the flexible carrier in the present solution is rolled up and inserted, and the flexible carrier is unfolded with tools such as clamps. Since the flexible carrier is provided with magnetic material, the flexible carrier in the abdominal cavity is adsorbed by the external magnetic part, thereby lifting the abdominal wall. In addition, the induced magnetic field generated by the in vitro magnetic device constructed by the Halbach three-dimensional magnetic array and the magnetic film placed in the body are mutually attracted, and the magnetic induction interaction force causes the flexible magnetic film to move to one side of the magnetic device and drive the abdomen to move in the same direction, thereby lifting the abdomen and constructing an abdominal cavity area with sufficient operating space.

[0020] The beneficial effects of the utility model are:

[0021] 1. This scheme uses magnetic adsorption to lift the patient's abdominal wall, expose the surgical field, and expand the abdominal cavity and surgical space;

[0022] 2. Compared with traditional inflatable laparoscopy, there is no risk of carbon dioxide-related complications, no need to maintain airtightness during surgery, and no need to create additional pneumoperitoneum holes in the abdominal wall; compared with suspension laparoscopy, there is no risk of abdominal wall injury, and the problem of larger traction and operating space;

[0023] 3. An operation hole is reserved on the flexible carrier so that the laparoscopic instrument can establish a laparoscopic instrument channel through the reserved hole.

[0024] 4. The magnetic component constructs a three-dimensional Halbach magnet array with an arc, which can form a stable magnetic mutual attraction and evenly distribute the force, without forming stress concentration distribution points and causing mechanical damage to the abdominal skin and muscle tissues. The size of the magnetic interaction force can be controlled by adjusting the arc, and the size of the abdominal surgical operation space can be controlled by adjusting the height of the magnetic component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a peritoneal magnetic membrane of the utility model;

[0026] Figure 2 It is a schematic diagram of two structures of the peritoneal magnetic membrane of the utility model;

[0027] Figure 3 The three structural schematic diagrams of the peritoneal magnetic membrane of the utility model are shown;

[0028] Figure 4 This is a schematic diagram of the use of the peritoneal magnetic membrane of the utility model;

[0029] Figure 5 A schematic diagram of one arrangement of magnetic materials in the utility model;

[0030] Figure 6 It is a schematic diagram of two arrangements of magnetic materials in the utility model;

[0031] Figure 7 Schematic diagram of three arrangements of magnetic materials in the utility model;

[0032] Figure 8 Schematic diagram of the four structures of the peritoneal magnetic membrane;

[0033] Fig. 9 A schematic diagram of a magnetic support system for the abdominal space;

[0034] Fig.10 for Fig. 9 The changing state diagram;

[0035] Fig.11 A schematic diagram of the structure of the abdominal space magnetic support system;

[0036] Fig.12 for Fig.11 A state diagram of ;

[0037] Fig.13 for Fig.12 The changing state diagram;

[0038] Fig.14 is a schematic diagram of the magnetic field of the permanent magnet unit;

[0039] Fig.15 Schematic diagram of the relationship between magnetic field strength and distance;

[0040] Fig.16 is a schematic diagram of the magnetic field of the electromagnet unit;

[0041] Fig.17 This is a schematic diagram of the one-dimensional Halbach display principle;

[0042] Fig.18 It is a schematic diagram of simulation of the three-dimensional Halbach word array of Example 1;

[0043] Fig.19 Schematic diagram of the field strength profile of the magnetic field simulation result of Example 1;

[0044] Fig. 20 Schematic diagram of the field strength profile of the magnetic field simulation result of Example 1 (partially enlarged);

[0045] In the figure: 1. Flexible carrier; 2. Magnetic material; 3. Magnetic anchor point area; 4. Reserved operation hole; 5. Abdominal cavity; 6. Abdominal wall; 7. Magnetic part; 8. Screw motor; 9. Guide rod; 10. Slider; 11. Push plate; 12. Connector; 13. Guide ridge; 14. Elastic mounting plate. DETAILED DESCRIPTION

[0046] The abdominal magnetic membrane and the abdominal space magnetic support system of the utility model are further described below in conjunction with the embodiments.

[0047] A peritoneal magnetic membrane includes a flexible carrier 1, on which a magnetic material 2 is provided. During surgery, an incision is made in the patient's abdominal wall 6, the flexible carrier 1 in the present solution is rolled up and inserted, and the flexible carrier 1 is unfolded using tools such as clamps. Since the magnetic material 2 is provided on the flexible carrier 1, the flexible carrier 1 in the abdominal cavity 5 is adsorbed by an external magnetic member 7, thereby lifting the abdominal wall 6. The magnetic member 7 can be a permanent magnet or an electromagnet, wherein the strength of the electromagnet's magnetism can be adjusted by changing the injected current.

[0048] The flexible carrier 1 can be made of silicone, rubber or other organic polymer materials, and the composition of the magnetic material can be made of but not limited to ferroferric oxide, samarium oxide, samarium iron nitrogen, rubidium iron nitrogen and other materials.

[0049] The magnetic material 2 may be embedded on the upper surface of the flexible carrier 1 or located in an interlayer of the flexible carrier 1 or formed integrally with the flexible carrier 1 .

[0050] In one embodiment, Figure 5 As shown, the magnetic material 2 is magnetic particles. During the production process of the magnetic film, the magnetic particles can be embedded on the surface of the flexible carrier 1. In a preferred solution, in order to prevent the magnetic particles from falling off, the outer side of the magnetic particles can be wrapped with a coating made of the same material as the flexible carrier 1.

[0051] In one embodiment, Figure 7 As shown, the magnetic material 2 is in sheet form and is directly embedded in the interlayer of the flexible carrier 1 during the process of manufacturing the flexible carrier 1 .

[0052] In one embodiment, Figure 6 As shown, in the process of manufacturing the flexible carrier 1, magnetic particles can be added when the silicone resin or rubber is in a liquid state, and mixed thoroughly to make them evenly distributed, wherein the magnetic energy product is about 4-33 MGOe.

[0053] A drainage groove 8 is provided on the surface of the flexible carrier. When the flexible carrier is placed in the abdominal cavity and adheres to the parietal peritoneum, the body fluid on the parietal peritoneum can flow to the outside of the flexible carrier along the drainage groove 8 in time. A partial gap can also be retained between the parietal peritoneum and the flexible carrier to prevent the flexible carrier from adhering to the abdominal wall, so as to facilitate the removal of the flexible carrier in the subsequent process.

[0054] The flexible carrier may be polygonal, circular or elliptical. Figure 1 As shown, when the flexible carrier is square, its corners are rounded.

[0055] In one embodiment, the flexible carrier 1 is in the shape of a disc. During the operation, an incision of about 5 cm is made on the patient's abdominal wall 6, and the disc-shaped flexible carrier 1 is placed in a predetermined position through the incision using a clamp. The external electromagnet is attached to the predetermined position on the outside of the abdominal wall 6. By adjusting the magnetic strength of the electromagnet, the disc-shaped flexible carrier 1 in the abdominal cavity 5 is adsorbed on the outside of the abdominal wall, and then the electromagnet is lifted, and then the abdominal wall 6 is lifted, the internal gap of the abdominal cavity 5 is expanded, the field of vision and the surgical operation space are exposed, and finally the clamp is removed; the volume of the disc-shaped flexible carrier can be miniaturized to achieve the purpose of convenient insertion, and the diameter can be between 5-10 cm. At this time, the above actions can be repeated as needed, and multiple disc-shaped flexible carriers 1 are respectively inserted, and the corresponding number of electromagnets are used for adsorption. The model of the electromagnetic component is but not limited to the medical electromagnet JL-0626N.

[0056] In one embodiment, a drainage groove 8 is provided on the surface of the flexible carrier, which can retain a partial gap between the parietal peritoneum and the flexible carrier to prevent the flexible carrier from adhering to the abdominal wall, so as to facilitate the removal of the flexible carrier in subsequent processes. At the same time, a magnetic anchor area 3 is provided on the edge of the flexible carrier 1.

[0057] In another embodiment, a magnetic anchor point area 3 is provided at the edge of the flexible carrier 1. Figure 1 , Figure 2 As shown, when the flexible carrier is a quadrilateral, the magnetic anchor point areas 3 are located at the four corners. The magnetic material 2 is concentrated at the magnetic anchor point areas 3. By making an incision of about 5 cm on the patient's abdominal wall 6, the flexible carrier 1 is curled and placed into the abdominal cavity 5. The flexible carrier 1 is unfolded along the parietal peritoneum with the help of tools such as clamps, and the external magnetic component 7 is attached to a predetermined position on the outside of the patient's abdomen. Then, the magnetic strength of the magnetic component 7 is adjusted so that the external magnetic component 7 and the magnetic anchor point areas 3 on the four corners of the flexible carrier produce a magnetic adsorption effect, thereby positioning the flexible carrier 1 on the abdominal wall 6, and then lifting the magnetic component 7 upward, thereby lifting the abdominal wall 6, expanding the abdominal cavity space, and exposing the required field of view for surgical operations.

[0058] There are more than one reserved operation holes 4 distributed on the flexible carrier 1. When the flexible carrier 1 is placed, the reserved operation holes 4 can be aligned with the surgical incision, and the laparoscopic instrument can establish a Trocar (a channel for surgical instruments to enter and exit the abdominal cavity 5) through the reserved holes. Figure 4 As shown, the number of reserved operation holes is four, so that corresponding reserved operation holes can be found according to different positions of the incisions.

[0059] The reserved operation hole 4 is polygonal, circular or elliptical. Figure 1 , Figure 3 As shown, the reserved operation hole 4 is a circular hole. Figure 2 As shown, the reserved operation hole 4 is a square hole, which can be specifically arranged according to common laparoscope instruments.

[0060] The present solution also includes an abdominal space magnetic support system, including the above-mentioned abdominal magnetic membrane, and also includes a suspension support structure and a magnetic field bearing structure. One side of the magnetic field bearing structure is distributed with magnetic parts, and magnetic mutual attraction can be generated between the magnetic parts and the abdominal magnetic membrane; the suspension support structure is used to connect and fix the magnetic field bearing structure.

[0061] The suspension support structure is used to install the magnetic field bearing structure and fix the magnetic field bearing structure on a frame or other fixed object. Specifically, the lower end of the suspension support structure is fixedly connected to the magnetic field bearing structure, and the upper end is fixed to the frame. The magnetic field bearing structure is mainly used to install magnetic parts; the magnetic parts can be permanent magnets or electromagnets, and the magnetic parts can be fixed on the side of the magnetic field bearing structure facing the patient, generally referring to the bottom surface, by bolting, embedding or bonding.

[0062] In this embodiment, the magnetic parts are distributed in a Halbach array on the magnetic field bearing structure. This embodiment establishes an enhanced directional magnetic field outside the abdominal cavity (external) through an in vitro array magnet device to attract the flexible magnetic film placed in the abdominal cavity during surgery, thereby achieving out-of-plane traction of the entire abdominal wall, and finally constructing an in vivo operating space for laparoscopic surgery with controllable size and shape. Specifically, the in vitro device suspends the magnetic field bearing structure above the operating table (including the patient) through a suspension support structure, which is located above the patient's abdomen. The magnetic field bearing structure provides the basic magnetic field force to attract the flexible magnetic film in the abdominal cavity.

[0063] The magnetic field bearing structure is in a downward arc shape or a flat plate shape, wherein the downward arc shape refers to an arc shape that bends downward. The magnetic field bearing structure is in a flat plate shape as a conventional shape, and preferably, the magnetic field bearing structure has a certain curvature to better fit the patient's abdominal cavity shape.

[0064] The magnetic field bearing structure can be an elastic structure, and a curvature adjustment device matched with the magnetic field bearing structure is provided on the suspension support structure to adjust the curvature of the magnetic field bearing structure bending downward. The magnetic field bearing structure has an enhanced magnetic field on the side facing the patient's abdominal cavity, while the other side has no magnetic requirements. The curvature adjustment device can control the height of the arc surface of the magnet, thereby driving the up and down movement of the abdominal flexible magnetic film.

[0065] In Example 1 of this scheme, a permanent neodymium magnet block is used as a magnet unit, referred to as a "neodymium magnet unit". This magnet unit has the characteristics of small size, high magnetic flux density, and strong magnetism. Its unit magnetic field can be calculated by the following formula:

[0066]

[0067] Fig.14The position indicated by the horizontal arrow in the upper middle is the calculation position corresponding to the magnitude of the magnetic induction intensity B. L, W and D are the length, width and height of the magnet unit respectively, and z is the vertical distance from the magnet surface.

[0068] like Fig.15 As shown, N52 neodymium magnet material (national standard) is used, and the Br standard value is 1.42 T. Through calculation, the surface magnetic field (z = 1mm) of a 20mm × 20mm × 20mm neodymium magnet block is 0.526T, and the magnetic field at a distance of about 20mm from the surface of the magnet block is about 0.061T, and the magnetic field decays severely with distance.

[0069] In Example 2 of this solution, a DC electromagnet is used as a magnetic field construction unit, referred to as an "electromagnet unit". Fig.16 As shown, it has similar magnetic field characteristics, but generates a magnetic field by passing direct current through the iron core, and the electromagnetic field disappears immediately when the direct current is removed. The intensity of the electromagnetic field generated by the electromagnet unit can be controlled by controlling the current size of the direct current passed.

[0070] In order to further increase the magnetic field strength and form a large-area magnetic field, this scheme adopts the Halbach array magnetic field scheme. This scheme forms a Halbach array magnetic field on the xy plane by periodically switching the direction of the north and south poles of the magnet in three-dimensional directions (x, y, z correspond to length, width, and height respectively) and forming a periodic arrangement. This magnetic field has two most obvious advantages: ① The magnetic field is significantly enhanced on one side of the xy plane and weakened on the other side; ② The magnetic field area can be expanded (expanding the periodically arranged magnet unit array), and at the same time, it will not reduce the out-of-plane magnetic field strength, and will not significantly increase the height in the z direction (or the volume of the in vitro magnetic field device).

[0071] like Fig.17 The diagram shows a one-dimensional magnetic array (data diagram). The left side shows a conventional one-dimensional magnetic array (with the north and south poles facing the same direction), and the right side shows a Halbach magnetic array (with the north and south poles facing each other in a periodic switching arrangement). The colors represent the vertical spatial intensity distribution of the magnetic field, and the redder the color, the higher the intensity.

[0072] Therefore, a three-dimensional magnetic array can be constructed using the Halbach array principle to significantly enhance the magnetic induction intensity (direction z) on one side (xy plane) while forming a uniform magnetic induction intensity distribution plane / curved surface.

[0073] In Example 1, Fig.18 As shown, a three-dimensional Halbach magnet array device with a curvature was constructed using neodymium magnet units, and the magnetic field distribution was simulated by computer software. The array structure is shown below: the north pole orientation (blue face orientation) of the neodymium magnet unit and the relative spatial position of the magnet unit are set:

[0074] In this example, the Halbach array is arranged periodically in the order of "right", "up", "left" and "down" in the x direction (north pointing). This periodic order is not the only solution. The Halbach array is also used to perform periodic magnetic polarity conversion in the y direction. The magnetic induction intensity on one side of the xy surface of the device can be further enhanced.

[0075] like Fig.19 , Fig. 20 As shown, we simulated Fig.18 The spatial magnetic field distribution of the three-dimensional Halbach arc array in the xz direction is shown in the cross section. It can be found that the magnetic field strength on one side is significantly enhanced, and the magnetic induction intensity is still about 0.6 T at a distance of about 10 mm from the magnet, while the intensity of a single magnet is only about 0.17 T. The magnetic field strength on the enhanced side is sufficient to attract the flexible magnetic film material placed inside the abdominal cavity, providing a sufficient size of operation cavity (space) for the abdomen.

[0076] like Fig.11 , Fig.12 , Fig.13 As shown, the magnetic field bearing structure includes an elastic mounting plate 14, and the suspension support structure includes a driving device, a guide rod 9, a slider 10, and a push plate 11, wherein the bottom of the push plate 11 is arc-shaped, the slider 10 is mounted on the top of the push plate 11, and the slider 10 and the push plate 11 are both slidably mounted on the guide rod 9. The driving device is connected to the slider 10 in a transmission manner, and the push plate 11 abuts against the elastic mounting plate 14. The driving device drives the push plate 11 to move up and down, and the push plate 11 squeezes the elastic mounting plate 14 to cause elastic deformation, thereby changing its own curvature. Specifically, the driving device is a screw motor 8, and a connector 12 is threadedly installed on the screw on the screw motor 8, and the connector 12 is connected to the push plate 11. A guide rib 13 is provided on the side of the guide rod 9, and a groove that cooperates with the guide rib 13 is provided on the push plate 11.

[0077] The mechanical transmission structure in the curvature adjustment device can control the bending of the elastic mounting plate 14, thereby changing the curvature radius of the elastic mounting plate 14, and adjusting the curvature of the extracorporeal magnet device to adapt to different body shapes and operating space shapes.

[0078] At the same time, the mechanical transmission structure controls the magnetic field device to move from top to bottom to fit the outer surface of the patient's abdominal cavity, forming a stable magnetic mutual attraction. The force-bearing surface is uniform, and no stress concentration distribution points will be formed, and no mechanical damage to the abdominal skin and muscle tissue will be caused.

[0079] Placing a polymer material spacer of a certain thickness between the outer surface of the abdominal cavity and the magnetic field device can ensure a stable magnetic field distance between the magnetic field device and the abdominal cavity fitting surface, and realize the size control of the induced magnetic interaction force. By adjusting the height of the entire magnetic field device up and down, the size of the abdominal surgery operation space can be controlled.

[0080] In other embodiments, Fig. 9 , Fig.10 As shown, the magnetic field bearing structure can also be a keel structure, on which a bendable joint is provided. The bending of the keel joint can be controlled by a mechanical transmission structure, thereby changing the curvature radius of the keel, thereby adjusting the curvature of the extracorporeal magnet device to adapt to different body shapes and operating space shapes.

[0081] In Example 2 shown in this scheme, a single neodymium magnet unit is replaced with an electromagnet unit of the same size, and the magnetic field generated by the device is controlled by the magnitude of the direct current. The Halbach three-dimensional magnetic array constructed by the electromagnet can also be realized while keeping the basic shape unchanged. Furthermore, the magnetic induction intensity can be controlled by changing the magnitude of the current.

[0082] The induced magnetic field generated by the extracorporeal magnetic device constructed by the Halbach three-dimensional magnetic array and the mutual attraction between the magnetic film placed in the body and the magnetic induction interaction force cause the flexible magnetic film to move toward one side of the magnetic device and drive the abdomen to move in the same direction, thereby lifting the abdomen and constructing an abdominal cavity area with sufficient operating space.

[0083] The magnetic field enhancement effect is obvious. Under the same volume, the magnetic induction intensity can be enhanced by at least 3 times compared with the magnetic device that does not use the Halbach array. At the same time, if the same magnetic induction intensity is to be achieved, a neodymium magnet with a thickness of at least 60mm is required.

[0084] The magnetic induction intensity on the other side is weakened, avoiding the requirement for magnetic-free equipment in the entire space (the back of the extracorporeal magnetic device) and reducing the cost and requirements of back-to-back magnetic shielding.

[0085] The magnetic induction interaction force (attraction) provided by the magnetic support system in the abdominal space and the magnetic film in the body has the characteristics of uniform magnetic distribution, strong force field, and adjustability. The magnetic field device fits the outer surface of the patient's abdominal cavity from top to bottom to form a stable magnetic mutual attraction. The force-bearing surface is uniform, and no stress concentration distribution point will be formed, and no mechanical damage to the abdominal skin and muscle tissue will be caused.

Claims

1. A peritoneal magnetic membrane, characterized in that: The invention comprises a flexible carrier (1), a magnetic material (2) is arranged on the flexible carrier (1), a drainage groove (8) is arranged on the surface of the flexible carrier, and / or a magnetic anchor point area (3) is arranged on the edge of the flexible carrier (1).

2. The peritoneal magnetic membrane according to claim 1, characterized in that The magnetic material (2) is embedded in the upper surface of the flexible carrier (1) or is located in the interlayer of the flexible carrier (1) or is integrally formed with the flexible carrier (1).

3. The peritoneal magnetic membrane according to claim 1 or 2, characterized in that: More than one reserved operation hole (4) is distributed on the flexible carrier (1).

4. An abdominal space magnetic support system, characterized in that: It includes the peritoneal magnetic membrane as described in any one of claims 1 to 3, and also includes a suspension support structure and a magnetic field bearing structure, one side of the magnetic field bearing structure is distributed with magnetic parts, and magnetic mutual attraction can be generated between the magnetic parts and the peritoneal magnetic membrane; the suspension support structure is used to connect and fix the magnetic field bearing structure.

5. The abdominal space magnetic support system according to claim 4, characterized in that: The magnetic components are distributed in a Halbach array on the magnetic field bearing structure.

6. The abdominal space magnetic support system according to claim 4 or 5, characterized in that: The magnetic field bearing structure is in a downward arc shape or a flat plate shape.

7. The abdominal space magnetic support system according to claim 4 or 5, characterized in that: The magnetic field bearing structure is an elastic structure, and an arc adjustment device matched with the magnetic field bearing structure is arranged on the suspension support structure.

8. The abdominal space magnetic support system according to claim 6, characterized in that: The magnetic field bearing structure is an elastic structure, and an arc adjustment device matched with the magnetic field bearing structure is arranged on the suspension support structure.

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