Magnetic tissue retraction device

Abstract

The application relates to the technical field of medical devices, in particular to a magnetic tissue traction device which comprises an external magnetic module and an internal series module; the internal series module comprises a plurality of first traction bodies; the plurality of first traction bodies are arranged in series; a ferromagnetic body is arranged in the first traction body; the external magnetic module pulls the ferromagnetic body through magnetic force; the internal series module moves towards the external magnetic module to clamp and pull a predetermined tissue part by the external magnetic module and the internal series module. The application enters the patient's body through a surgical incision without increasing additional incisions, and the internal organs are not damaged through magnetic traction, so that the trauma of the patient caused by the operation is greatly reduced, and postoperative pain is alleviated.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more specifically, to a magnetic tissue traction device. Background Technology

[0002] In the field of minimally invasive surgery, to achieve effective manipulation of specific surgical sites, it is often necessary to reposition internal organs to ensure a clear surgical field and sufficient operating space. Current practices rely on a series of rod-shaped retractors with different curvatures, hooks, and grasping mechanisms for organ movement and positioning. However, this traditional approach has the following drawbacks:

[0003] Current technology requires each retractor to be inserted into the surgical area through a separate incision, which not only increases patient trauma and prolongs recovery time but also leads to more unnecessary scarring. Furthermore, because all surgical instruments, including retractors, must be inserted through a limited number of incisions, the manipulability of these instruments is severely restricted. Therefore, when the position of the retractor needs to be adjusted, it is often necessary to remove the instrument from the body and reinsert it through a new incision, a process that further exacerbates patient trauma.

[0004] In addition, due to the fragility of internal organs, existing retractors can easily damage internal organs during organ traction, increasing surgical risks and the possibility of postoperative complications. Utility Model Content

[0005] The purpose of this application is to provide a magnetic tissue traction device that can be inserted into the patient's body through a surgical incision without the need for additional incisions. Furthermore, the magnetic traction does not cause damage to internal organs, thereby significantly reducing surgical trauma to the patient and alleviating postoperative pain.

[0006] The embodiments of this application are implemented as follows:

[0007] This application provides a magnetic tissue traction device, including an external magnetic module and an internal series module; the internal series module includes a plurality of first traction bodies; the plurality of first traction bodies are arranged in series; a ferromagnetic body is disposed within the first traction body; the external magnetic module pulls the ferromagnetic body by magnetic force, and the internal series module moves toward the external magnetic module, so that the external magnetic module and the internal series module clamp and pull a predetermined tissue part.

[0008] As an optional implementation, there are at least two external magnetic modules; the internal series module has at least two traction sections; when the predetermined tissue area is pulled, the positions of the at least two external magnetic modules and the at least two traction sections are arranged in a one-to-one correspondence.

[0009] As an optional implementation, the internal series module includes a flexible guide wire, which is connected in series with multiple first traction bodies.

[0010] As an optional implementation, the internal series module further includes a plurality of second traction bodies disposed on the flexible guide wire; the plurality of second traction bodies are arranged alternately with the plurality of first traction bodies.

[0011] As an optional implementation, at least two second traction bodies are provided between two adjacent first traction bodies.

[0012] As an alternative implementation, the first traction body and / or the second traction body includes a spherical structure having a smooth surface.

[0013] As an optional implementation, it also includes a cannula; the cannula has a receiving channel for placing the internal serial module, the diameter of the receiving channel being the same as the diameter of the spherical structure; the internal serial module is driven into the patient's body through the receiving channel.

[0014] As an optional implementation, both the first traction body and the second traction body are provided with through holes, and the flexible guide wires are sequentially passed through the through holes, so that the first traction body and the second traction body are connected in series.

[0015] As an optional implementation, it also includes a hinge assembly; the hinge assembly connects adjacent first traction bodies, such that a plurality of first traction bodies are connected in series; the rotational axial extension directions of the plurality of hinge assemblies are consistent, such that the plurality of first traction bodies are in the same plane.

[0016] As an optional implementation, there are at least two of the aforementioned internally connected modules.

[0017] The beneficial effects of the embodiments of this application include:

[0018] The embodiments of this application can reduce patient trauma and accelerate recovery because the reduction of additional incision requirements not only reduces the degree of trauma during the operation, but also helps to speed up the patient's postoperative recovery and reduces the possibility of scar formation.

[0019] The embodiments of this application can enhance operational flexibility. Compared with traditional instruments that need to enter the body through limited entrances, this application allows doctors to adjust the position of organs more flexibly by controlling the external magnetic field, thereby improving the convenience and efficiency of the operation.

[0020] The embodiments of this application can reduce surgical risks by using a non-contact method to move internal organs. Compared with traditional methods, it can more precisely control the traction force, thereby effectively reducing the risk of tissue damage caused by mechanical operation and reducing the probability of postoperative complications. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is one of the structural schematic diagrams of the magnetic tissue traction device in the embodiments of this application;

[0023] Figure 2 This is a second schematic diagram of the structure of the magnetic tissue traction device according to an embodiment of this application;

[0024] Figure 3 This is the third schematic diagram of the structure of the magnetic tissue traction device in the embodiments of this application;

[0025] Figure 4 This is the fourth schematic diagram of the magnetic tissue traction device in the embodiments of this application.

[0026] Icons: 100 - External magnetic module; 101 - Internal series module; 102 - First traction body; 103 - Ferromagnetic body; 104 - Traction part; 105 - Flexible guide wire; 106 - Second traction body; 107 - Tube needle. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In the field of minimally invasive surgery, to achieve effective manipulation of specific surgical sites, it is often necessary to reposition internal organs to ensure a clear surgical field and sufficient operating space. Current practices rely on a series of rod-shaped retractors with different curvatures, hooks, and grasping mechanisms for organ movement and positioning. However, this traditional approach has the following drawbacks:

[0032] Current technology requires each retractor to be inserted into the surgical area through a separate incision, which not only increases patient trauma and prolongs recovery time but also leads to more unnecessary scarring. Furthermore, because all surgical instruments, including retractors, must be inserted through a limited number of incisions, the manipulability of these instruments is severely restricted. Therefore, when the position of the retractor needs to be adjusted, it is often necessary to remove the instrument from the body and reinsert it through a new incision, a process that further exacerbates patient trauma.

[0033] In addition, due to the fragility of internal organs, existing retractors can easily damage internal organs during organ traction, increasing surgical risks and the possibility of postoperative complications.

[0034] To address the aforementioned technical problems, this application provides a magnetic tissue traction device.

[0035] Reference Figure 1 , Figure 2As shown, the magnetic tissue traction device provided in this application embodiment includes an external magnetic module 100 and an internal series module 101; the internal series module 101 includes a plurality of first traction bodies 102; the plurality of first traction bodies 102 are arranged in series; a ferromagnetic body 103 is provided inside the first traction body 102; the external magnetic module 100 pulls the ferromagnetic body 103 by magnetic force, and the internal series module 101 moves toward the external magnetic module 100, so that the external magnetic module 100 and the internal series module 101 clamp and pull the predetermined tissue part.

[0036] It should be noted that ferromagnetic materials are a class of materials that can be strongly magnetized under the influence of an external magnetic field, and can retain a certain degree of magnetization even after the external magnetic field is removed. These materials contain unpaired electrons within their atoms. The magnetic moments generated by these electrons can form an ordered arrangement on a macroscopic scale under certain conditions (such as low temperature or an external magnetic field), thus exhibiting strong magnetism.

[0037] In other words, the ferromagnetic material 103 can be attracted by a magnet, but it does not have magnetic force itself. For example, materials such as iron, nickel, and cobalt.

[0038] It should be noted that, in this embodiment of the application, by using at least one external magnetic module 100 and at least one internal serial module 101 that can be placed inside the body, the internal serial module 101 includes a plurality of first traction bodies 102, thereby achieving non-contact traction of tissue sites. Each first traction body 102 in the internal serial module 101 has a built-in ferromagnetic body 103, which can respond to the magnetic field generated by the external magnetic module 100, thereby achieving movement.

[0039] It should be noted that, since the organ is pulled using a magnetic field, it is not necessary to create a separate incision for each retractor, thus reducing the number of incisions required during the operation. In this embodiment, the internal serial module 101 can enter the patient's body through the surgical incision in a linear strip structure, eliminating the need for a separate incision for the internal serial module 101.

[0040] The magnetic tissue traction device of this application embodiment is designed with the fragility of internal organs in mind, and adopts a gentler traction method to reduce potential damage to the tissues surrounding the surgical area.

[0041] It should be noted that the external magnetic module 100 in this embodiment can be an electromagnetic module, which adjusts the magnitude of the magnetic field by adjusting the voltage. Therefore, in specific operation, the magnetic attraction force on the internal series module 101 can be adjusted as needed.

[0042] This application utilizes the positional change of the external magnetic module 100 to change the position and orientation of the internal series module 101 by adjusting the direction and intensity of the magnetic field, without having to directly remove or reinsert the instrument.

[0043] The embodiments of this application can produce the following technical effects:

[0044] Reduced patient trauma and faster recovery: By reducing the need for additional incisions, this not only reduces the degree of trauma during the procedure but also helps to speed up the patient's postoperative recovery while reducing the likelihood of scar formation.

[0045] Enhanced operational flexibility: Compared to traditional instruments that require entry into the body through limited access points, this application allows doctors to more flexibly adjust organ positions by using externally controlled magnetic fields, improving the convenience and efficiency of surgical procedures.

[0046] Reduce surgical risks: Using a non-contact method to move internal organs allows for more precise control of traction force compared to traditional methods, thereby effectively reducing the risk of tissue damage caused by mechanical manipulation and decreasing the likelihood of postoperative complications.

[0047] Reference Figure 1 , Figure 4 As shown, as an optional implementation, there are at least two external magnetic modules 100; the internal serial module 101 has at least two traction sections 104; when a predetermined tissue part is pulled, the positions of the at least two external magnetic modules 100 and the at least two traction sections 104 are arranged in a one-to-one correspondence.

[0048] It should be noted that the embodiments of this application include at least two external magnetic modules 100. Therefore, the embodiments of this application can use multiple independently controlled external magnetic modules 100 to precisely adjust the position and orientation of the internal series module 101. Each external magnetic module 100 can have its magnetic field strength and direction controlled individually to achieve more precise operation on a specific area.

[0049] Each traction section 104 in this embodiment includes one or more first traction bodies 102, and these traction sections 104 can operate independently according to surgical needs. This design allows for the application of forces of different magnitudes or directions at different tissue sites, thereby providing more flexible and precise tissue traction. The one-to-one correspondence between at least two external magnetic modules 100 and at least two traction sections 104 ensures precise control of the traction body in each section, enabling the device to be fine-tuned according to the specific requirements of the surgery, optimizing the surgical field of view and operating space.

[0050] This application embodiment uses a one-to-one correspondence between multiple external magnetic modules 100 and multiple traction sections 104 to achieve more precise positioning and traction of predetermined tissue sites, which is especially important for complex surgeries that require highly precise operation.

[0051] It should be noted that the embodiments of this application support simultaneous independent adjustment of multiple sites, greatly improving the ability to handle complex situations during surgery, such as when it is necessary to pull tissues in different directions or depths within the same surgical area. Because the movement of each traction unit 104 can be controlled more precisely, unnecessary tissue movement is reduced, thereby maintaining a clear and unobstructed surgical field of vision, which helps to improve surgical efficiency and safety.

[0052] The embodiments of this application, through more precise control, can avoid unnecessary traction or compression on surrounding healthy tissues, thereby reducing the risk of tissue damage during surgery and the probability of postoperative complications.

[0053] Reference Figure 2 , Figure 3 As shown, as an optional implementation, the internal series module 101 includes a flexible guide wire 105, which is connected in series with a plurality of first traction bodies 102.

[0054] It should be noted that the flexible guide wire 105, as a connecting element, can effectively connect multiple first traction bodies 102 in series, ensuring that these traction bodies can move as a whole under the action of an external magnetic field or adjust their positions individually as needed.

[0055] In this embodiment, multiple first traction bodies 102 are connected in series using a flexible guidewire 105 to form an overall structure of an internally connected module 101. This structure allows for simultaneous operation on multiple sites while maintaining the relative independence of each first traction body 102, facilitating flexible adjustments for different situations. The design of connecting multiple first traction bodies 102 in series with the flexible guidewire 105 enables all traction bodies to respond to the operating commands of the external magnetic module 100 to a certain extent, providing consistent traction force and directional control, thus achieving greater coordination and unity when performing complex tissue traction tasks. Although the individual first traction bodies 102 are connected by the flexible guidewire 105, each traction body retains a certain degree of independence, allowing different traction forces or directions to be applied to specific sites according to surgical needs. This increases the flexibility of the device, enabling it to adapt to more diverse surgical scenarios. The use of the flexible guidewire 105 in series simplifies the overall structure of the internally connected module 101, reduces complexity, and may lower manufacturing costs. For surgeons, this also means easier mastery of operating techniques and a shorter learning curve.

[0056] It should be noted that the flexible guidewire 105 can have a certain degree of elasticity.

[0057] Reference Figure 3 As shown, in one optional implementation, the internal series module 101 further includes multiple second traction bodies 106 disposed on the flexible guide wire; the multiple second traction bodies 106 are arranged alternately with the multiple first traction bodies 102. No ferromagnetic materials are disposed within the second traction bodies 106, and they are not attracted by the magnetic force of the external magnetic module 100.

[0058] The first traction body 102 and the second traction body 106 are both provided with through holes, and the flexible guide wires are sequentially inserted into the through holes, so that the first traction body 102 and the second traction body 106 are connected in series.

[0059] It should be noted that the application of the flexible guidewire and the presence of the second traction body 106 make the entire device more flexible and adaptable, better conforming to and adapting to different surgical environments and tissue structures, providing more precise manipulation capabilities. Although the second traction bodies 106 themselves are not magnetically attracted, they are indirectly controlled through their physical connection with the first traction body 102. This allows surgeons to perform more precise and delicate operations when performing tissue traction, especially when it is necessary to avoid direct magnetic force.

[0060] Because the second traction body 106 does not respond to magnetic force, the risk of tissue damage caused by excessive magnetic force or improper operation is reduced. Furthermore, the flexible guidewire design helps reduce pressure on surrounding healthy tissue, further protecting patient safety.

[0061] This design is particularly suitable for surgical scenarios requiring high flexibility and precision, such as areas close to sensitive organs or structures. It not only improves surgical success rates but may also expand the application range of magnetic tissue traction devices.

[0062] For example, refer to Figure 3 As shown, at least two second traction bodies 106 are provided between two adjacent first traction bodies 102.

[0063] As an optional implementation, the first traction body 102 and / or the second traction body 106 include a spherical structure with a smooth surface. The first traction body 102 and the second traction body 106 may be made of a biocompatible material or supported by silicone or other materials.

[0064] The first traction body 102 and the second traction body 106 in this embodiment adopt a spherical design and have a smooth surface. This design helps to reduce friction and potential damage to surrounding tissues, making the operation smoother and safer. The smooth surface of the spherical structure in this embodiment facilitates smoother passage through the internal space of the human body, reduces resistance, and allows surgeons to accurately control the position and movement of the traction body, thereby improving surgical efficiency.

[0065] In addition, the traction body is made of biocompatible materials, such as silicone or other suitable materials. This not only reduces the risk of immune responses and inflammation but also improves the compatibility between the device and human tissues.

[0066] Reference Figure 1 As shown, as an optional implementation, it also includes a cannula 107; the cannula 107 has a receiving channel for placing the internal serial module 101, the diameter of the receiving channel being the same as the diameter of the spherical structure; the internal serial module 101 is driven to enter the patient's body through the receiving channel.

[0067] The cannula 107 of this embodiment has a receiving channel for guiding and protecting the internal serial module 101 safely into the patient's body. The diameter of the receiving channel is the same as the diameter of the spherical structure, meaning that the size of the receiving channel of the cannula 107 is precisely designed to accommodate the spherical structure in the internal serial module 101, ensuring that the traction body can pass smoothly without getting stuck or damaged. Under the action of external force (such as a push rod or other propulsion device), the internal serial module 101 can accurately and smoothly enter the predetermined position along the receiving channel of the cannula 107.

[0068] As an optional implementation, it also includes a hinge assembly; the hinge assembly connects adjacent first traction bodies 102, so that multiple first traction bodies 102 are connected in series; the rotational axes of multiple hinge assemblies extend in the same direction, so that multiple first traction bodies 102 are in the same plane.

[0069] Unlike the aforementioned series connection scheme, the hinge assembly in this embodiment connects adjacent first traction bodies 102, allowing multiple first traction bodies 102 to be connected in series to form an internal series module 101. The rotational axes of all hinge assemblies extend in the same direction, ensuring that the multiple first traction bodies 102 are in the same plane during operation. This consistency in rotational axes ensures more coordinated movement of the first traction bodies 102, reducing unnecessary displacement or twisting, thereby improving the precision and efficiency of the surgical procedure.

[0070] As an optional implementation, there are at least two internally connected modules 101.

[0071] More than one internally connected module 101 can be deployed in a single surgery. Each module can be controlled independently and customized for different surgical needs. Using at least two internally connected modules 101 significantly increases the applicability of the device, enabling it to handle more complex or multi-site surgical scenarios. For example, multiple internally connected modules 101 can be used when it is necessary to simultaneously retract tissues in different locations or directions. Multiple internally connected modules 101 can each adjust their position and angle as needed, providing greater operational flexibility. Surgeons can flexibly adjust the working status of each module according to the actual surgical situation, optimizing the surgical field of view and operating space.

[0072] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A magnetic tissue traction device, characterized in that, It includes an external magnetic module (100) and an internal series module (101); the internal series module (101) includes a plurality of first traction bodies (102); the plurality of first traction bodies (102) are arranged in series; a ferromagnetic body (103) is provided inside the first traction body (102); the external magnetic module (100) pulls the ferromagnetic body (103) by magnetic force, and the internal series module (101) moves toward the external magnetic module (100) so that the external magnetic module (100) and the internal series module (101) clamp and pull on a predetermined tissue part.

2. The magnetic tissue traction device according to claim 1, characterized in that, There are at least two external magnetic modules (100); the internal serial module (101) has at least two traction sections (104); when a predetermined tissue part is pulled, the positions of at least two external magnetic modules (100) and at least two traction sections (104) are arranged in a one-to-one correspondence.

3. The magnetic tissue traction device according to claim 1, characterized in that, The internal series module (101) includes a flexible guide wire (105) which is connected in series with a plurality of the first traction bodies (102).

4. The magnetic tissue traction device according to claim 3, characterized in that, The internal series module (101) also includes a plurality of second traction bodies (106) disposed on the flexible guide wire; the plurality of second traction bodies (106) and the plurality of first traction bodies (102) are arranged alternately.

5. The magnetic tissue traction device according to claim 4, characterized in that, At least two second traction bodies (106) are provided between two adjacent first traction bodies (102).

6. The magnetic tissue traction device according to claim 4, characterized in that, The first traction body (102) and / or the second traction body (106) include a spherical structure having a smooth surface.

7. The magnetic tissue traction device according to claim 6, characterized in that, It also includes a cannula (107); the cannula (107) has a receiving channel for placing the internal serial module (101), the diameter of the receiving channel being the same as the diameter of the spherical structure; the internal serial module (101) is driven to enter the patient's body through the receiving channel.

8. The magnetic tissue traction device according to any one of claims 4-7, characterized in that, Both the first traction body (102) and the second traction body (106) are provided with through holes, and the flexible guide wires are sequentially passed through the through holes, so that the first traction body (102) and the second traction body (106) are connected in series.

9. The magnetic tissue traction device according to claim 1 or 2, characterized in that, It also includes a hinge assembly; the hinge assembly connects adjacent first traction bodies (102) so that multiple first traction bodies (102) are connected in series; the rotational axial extension directions of the multiple hinge assemblies are consistent, so that the multiple first traction bodies (102) are in the same plane.

10. The magnetic tissue traction device according to claim 9, characterized in that, There are at least two of the aforementioned internally connected modules (101).

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