Sacral nerve stimulating electrode assembly and guiding device thereof
By designing a limiting assembly on the sacral nerve stimulation electrode assembly, the problem of easy displacement of the electrode assembly in the subcutaneous tissue is solved, and the stimulation effect and patient quality of life are improved.
Patent Information
- Application Number
- CN202411918360.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-03-11
AI Technical Summary
The sacral nerve stimulation electrode assembly is prone to displacement in the subcutaneous tissue, resulting in poor effect on sacral nerve stimulation.
A sacral nerve stimulation electrode assembly including a first limiting assembly and a second limiting assembly is designed, and the limiting assembly is located on the stimulation electrode for restricting its movement in the axial direction to prevent displacement.
It effectively prevents the displacement of the stimulation electrode in the subcutaneous tissue, improves the accuracy of stimulation to the sacral nerve, reduces the risk of secondary surgery due to the displacement, and improves the quality of life of the patients.
Smart Images
Figure CN119587873A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical equipment, and in particular to a sacral nerve stimulation electrode assembly and a guide device thereof. Background Art
[0002] The sacral nerve stimulation electrode assembly is connected to a sacral nerve stimulator, which is implanted into the sacral foramen of a human body. The discharge of the sacral nerve stimulator stimulates the sacral nerve through the sacral nerve stimulation electrode assembly, thereby effectively controlling and treating moderate to severe overactive bladder or idiopathic urinary retention.
[0003] When using a sacral nerve stimulator to stimulate the sacral nerve, the sacral nerve stimulation electrode assembly connected thereto needs to be buried in the subcutaneous tissue of the human body and extended into the sacral nerve sheath.
[0004] However, the sacral nerve stimulation electrode assembly is prone to displacement in the subcutaneous tissue, resulting in poor stimulation effect on the sacral nerve. Summary of the invention
[0005] The embodiments of the present application provide a sacral nerve stimulation electrode assembly and a guiding device to solve the problem that the sacral nerve stimulation electrode assembly is easily displaced in the subcutaneous tissue, resulting in poor stimulation effect on the sacral nerve.
[0006] The present application embodiment provides a sacral nerve stimulation electrode assembly, comprising:
[0007] Stimulation electrodes, used to stimulate sacral nerves;
[0008] A first limiting component is arranged on the stimulation electrode, and the first limiting component is located at the end of the stimulation electrode near the target point;
[0009] A second limiting component is arranged on the stimulation electrode, the first limiting component is located at the end of the stimulation electrode near the target point, and the second limiting component is arranged to face or back to the first limiting component;
[0010] The first limiting assembly and the second limiting assembly are used to limit the movement of the stimulation electrode along its axial direction.
[0011] In a feasible implementation, the first limiting assembly includes a plurality of first limiting members, and the plurality of first limiting members are sequentially arranged along the first direction of the stimulation electrode.
[0012] In a feasible implementation, the second limiting assembly includes a plurality of second limiting members, and the plurality of second limiting members are sequentially arranged along the second direction of the stimulation electrode.
[0013] In a feasible implementation, the first limiting member includes a fixing seat and at least one limiting protrusion, the fixing seat is fixedly connected to the stimulation electrode, and at least one limiting protrusion is arranged obliquely along the circumference of the fixing seat.
[0014] In a feasible implementation, the first limiting member includes a plurality of the limiting protrusions, and the plurality of the limiting protrusions are evenly distributed along the circumference of the fixing seat.
[0015] In a feasible implementation manner, the first limiting member and the second limiting member are configured to have the same structure.
[0016] In a feasible implementation, the material of the first limiting component and the second limiting component is configured as an elastic material.
[0017] In a feasible implementation, the material of the first limiting component and the second limiting component is configured as polyurethane material.
[0018] In a second aspect, an embodiment of the present application provides a sacral nerve stimulation electrode assembly guiding device, wherein the sacral nerve stimulation electrode assembly guiding device is used to bury the above-mentioned sacral nerve stimulation electrode assembly into subcutaneous tissue.
[0019] In a feasible implementation, the sacral nerve stimulation component guide device has a guide hole, and the diameter of the cross section of the guide hole gradually decreases along the moving direction of the sacral nerve stimulation component to change the shapes of the first limiting component and the second limiting component.
[0020] In a feasible implementation, the material of the sacral nerve stimulation electrode assembly guide device is configured as a hard transparent plastic material.
[0021] The embodiment of the present application provides a sacral nerve stimulation electrode assembly, including a stimulation electrode, a first limiting assembly and a second limiting assembly. The stimulation electrode is used to stimulate the sacral nerve; the first limiting assembly is arranged on the stimulation electrode, and the first limiting assembly is located at the end of the stimulation electrode near the target point; the second limiting assembly is arranged on the stimulation electrode, the first limiting assembly is located at the end of the stimulation electrode near the target point, and the second limiting assembly is arranged opposite to or opposite to the first limiting assembly; the first limiting assembly and the second limiting assembly are used to limit the movement of the stimulation electrode along its axial direction, thereby solving the problem that the stimulation electrode is easily displaced in the subcutaneous tissue, resulting in poor stimulation effect on the sacral nerve.
[0022] An embodiment of the present application also provides a sacral nerve stimulation electrode assembly guiding device, which is used to bury the sacral nerve stimulation electrode assembly described in any of the above items into the subcutaneous tissue, including a sacral nerve stimulation electrode assembly in any of the technical solutions in the above schemes, and thus has all the beneficial effects of the sacral nerve stimulation electrode assembly in any of the technical solutions in the above schemes, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation of the present invention. In the drawings:
[0024] Figure 1 is a schematic diagram of the structure of a sacral nerve stimulation electrode assembly according to an embodiment of the present application;
[0025] Figure 2 yes Figure 1 A schematic structural diagram of the first limiter and the second limiter in FIG.
[0026] Figure 3 It is a schematic diagram of the use of a sacral nerve stimulation electrode assembly and a sacral nerve stimulation electrode assembly guide device in cooperation with each other according to an embodiment of the present application;
[0027] Figure 4 yes Figure 3 Schematic diagram of the structure of the sacral nerve stimulation electrode assembly guide device.
[0028] Description of reference numerals:
[0029] 100 - stimulation electrode; 200 - first limiting assembly; 300 - second limiting assembly; 400 - sacral nerve stimulation electrode assembly guide device;
[0030] 210-first stopper; 310-second stopper; 410-guide hole;
[0031] 211 -fixed seat; 212 -limiting protrusion. DETAILED DESCRIPTION
[0032] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.
[0033] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.
[0034] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0035] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0036] The sacral nerve stimulation electrode assembly is connected to a sacral nerve stimulator, which is implanted into the sacral foramen of a human body. The discharge of the sacral nerve stimulator stimulates the sacral nerve through the sacral nerve stimulation electrode assembly, thereby effectively controlling and treating moderate to severe overactive bladder or idiopathic urinary retention.
[0037] When using a sacral nerve stimulator to stimulate the sacral nerve, the sacral nerve stimulation electrode assembly connected thereto needs to be buried in the subcutaneous tissue of the human body and extended into the sacral nerve sheath.
[0038] However, the sacral nerve stimulation electrode assembly is prone to displacement in the subcutaneous tissue, resulting in poor stimulation effect on the sacral nerve.
[0039] In order to solve the above problems, the embodiment of the present application provides a sacral nerve stimulation electrode assembly and a guide device. The solution provided by the embodiment of the present application will be described in detail below in conjunction with the drawings of the specification.
[0040] Figure 1 It is a schematic diagram of the structure of a sacral nerve stimulation electrode assembly according to an embodiment of the present application.
[0041] Reference Figure 1 As shown, the embodiment of the present application provides a sacral nerve stimulation electrode assembly, including a stimulation electrode 100, a first stopper assembly 200 and a second stopper assembly 300. The stimulation electrode 100 is used to stimulate the sacral nerve; the first stopper assembly 200 is arranged on the stimulation electrode 100, and the first stopper assembly 200 is located at the near target end of the stimulation electrode 100. The near target end refers to an end used to stimulate the sacral nerve.
[0042] The second limiting component 300 is arranged on the stimulation electrode 100, the first limiting component 200 is located at the target end of the stimulation electrode 100, and the second limiting component 300 is arranged facing or back to the first limiting component 200; the first limiting component 200 and the second limiting component 300 are used to limit the movement of the stimulation electrode 100 along its axial direction, thereby solving the problem that the stimulation electrode is easy to shift in the subcutaneous tissue, avoiding the deviation of the contact points of the sacral nerve stimulation electrode assembly from the target position required for stimulation, and greatly improving the accuracy of stimulation of the sacral nerve stimulation electrode assembly; further reducing the risk of secondary surgery for patients due to postoperative displacement of the stimulation electrode, alleviating the pain and economic pressure of patients, and improving the quality of life.
[0043] Exemplarily, the stimulation electrode 100 is a metal wire, and the position where the first limiting component 200 and the second limiting component 300 are set on the stimulation electrode 100 can be configured as an intermediate insulating material. The first limiting component 200 and the second limiting component 300 can be bonded to the stimulation electrode 100.
[0044] Reference Figure 1 As shown, illustratively, the first limit assembly 200 includes a plurality of first limit members 210, and the plurality of first limit members 210 are sequentially arranged along the first direction of the stimulation electrode 100. The second limit assembly 300 includes a plurality of second limit members 310, and the plurality of second limit members 310 are sequentially arranged along the second direction of the stimulation electrode 100. It should be noted that the first direction and the second direction are both directions extending along the stimulation electrode 100, and the first direction is opposite to the second direction. The first direction can refer to Figure 1 The a direction is shown in the figure, and the second direction can be referred to Figure 1 The first limiting component 200 is used to limit the displacement of the stimulation electrode 100 in the first direction, and the second limiting component 300 is used to limit the displacement of the stimulation electrode 100 in the second direction.
[0045] Figure 2 yes Figure 1 Schematic diagram of the structure of the first limiting member 210.
[0046] Reference Figure 2As shown, illustratively, the first limiting member 210 includes a fixing seat 211 and at least one limiting protrusion 212, the fixing seat 211 is fixedly bonded to the stimulation electrode 100, and at least one limiting protrusion 212 is arranged obliquely along the circumference of the fixing seat 211. In other words, the limiting protrusion 212 protrudes from the side of the fixing seat 211. In other examples, the fixing seat 211 and the limiting protrusion 212 are made of polyurethane material, and the two are integrally formed. The limiting protrusion 212 can extend into the subcutaneous tissue to prevent the stimulation electrode 100 from shifting.
[0047] In some other examples, the first limiting member 210 includes a plurality of limiting protrusions 212 , and the plurality of limiting protrusions 212 are evenly distributed along the circumference of the fixing seat 211 , thereby providing a greater gripping force and ensuring the fixing effect of the stimulation electrode 100 .
[0048] Continue to refer to Figure 1 As shown, in some examples, the second limiting member 310 has the same structure as the first limiting member 210 .
[0049] The first limit member 210 and the second limit member 310 have the same structure, only the installation direction is opposite. In the present application, for the convenience of distinction, they are specifically named as the first limit member 210 and the second limit member 310. In some other examples, the first limit member 210 and the second limit member 310 have different structures, for example, the first limit member 210 and the second limit member 310 are made of different materials, or the number of limit protrusions 212 of the two is different. Exemplarily, the material of the second limit member 300 can be configured as an elastic material to facilitate deformation so as to embed into the subcutaneous tissue to limit the displacement of the stimulation electrode 100. For example, polyurethane material.
[0050] Figure 3 is a schematic diagram of a sacral nerve stimulation electrode assembly and a sacral nerve stimulation electrode assembly guide device 400 according to an embodiment of the present application; Figure 4 yes Figure 3 Schematic diagram of the structure of the sacral nerve stimulation electrode assembly guide device 400.
[0051] Reference Figure 3 and Figure 4 As shown, in the second aspect, the embodiment of the present application provides a sacral nerve stimulation electrode assembly guide device 400, which is used to bury the sacral nerve stimulation electrode assembly into the subcutaneous tissue. The sacral nerve stimulation electrode assembly guide device 400 has a guide hole 410. Along the direction of movement of the sacral nerve stimulation assembly, the diameter of the cross-section of the guide hole 410 gradually decreases to change the shape of the first limit assembly 200 and the second limit assembly 300, thereby allowing the first limit member 210 and the second limit member 310 to be embedded in the subcutaneous tissue. It should be noted that the direction of movement of the stimulation electrode can refer to Figure 4That is to say, the guide hole 410 is tapered.
[0052] The sacral nerve stimulation electrode assembly guide device 400 ensures the normal implantation of the stimulation electrode 100, so that the first limiter 210 and the second limiter 310 on the stimulation electrode 100 do not deform during the implantation process, and are successfully implanted into the subcutaneous tissue, ensuring that the stimulation electrode 100 is firmly fixed.
[0053] The distal end of the stimulation electrode 100 enters the guide hole 410 through the large opening end of the sacral nerve stimulation electrode assembly guide device 400 until the distal end of the stimulation electrode 100 enters the sheath through the small opening end of the guide hole 410. When the stimulation electrode 100 passes through the guide hole 410, the sacral nerve stimulation electrode assembly moves along the guide hole 410 from the large radial direction to the small diameter direction, and the diameter of the cross section of the guide hole 410 gradually decreases. The first limiting assembly 200 and the second limiting assembly 300 of the stimulation electrode 100 are both subjected to the squeezing force from the outside to the inside of the inner wall of the sacral nerve stimulation electrode assembly guide device 400. The limiting protrusions on the first limiting assembly 200 and the second limiting assembly 300 tend to tighten from the outside to the inside. The two will not undergo structural deformation during the process of entering the sheath through the sacral nerve stimulation electrode assembly guide device 400, resulting in a decrease in their riveting force, thereby protecting the integrity of the stimulation electrode 100 after the sacral nerve electrode is implanted.
[0054] In addition, in some examples, the material of the sacral nerve stimulation electrode assembly guide 400 is configured as a hard transparent plastic material, so that the first stopper assembly 200 and the second stopper assembly 300 of the sacral nerve stimulation electrode assembly can be fully visualized to see whether the shape is deformed when moving in the sacral nerve stimulation electrode assembly guide 400. It can be understood that the sacral nerve stimulation electrode assembly guide 400 is quickly connected to the catheter sheath, and the convenience of operation is not affected.
[0055] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.
[0056] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.
Claims
1. A sacral nerve stimulation electrode assembly, characterized in that: include: Stimulation electrodes (100) for stimulating sacral nerves; A first limiting component (200) is arranged on the stimulation electrode (100), and the first limiting component (200) is located at the end of the stimulation electrode (100) near the target point; A second limiting component (300) is arranged on the stimulation electrode (100), the first limiting component (200) is located at the end of the stimulation electrode (100) near the target point, and the second limiting component (300) and the first limiting component (200) are arranged facing or facing away from each other; The first limiting assembly (200) and the second limiting assembly (300) are used to limit the movement of the stimulation electrode (100) along its axial direction.
2. The sacral nerve stimulation electrode assembly according to claim 1, characterized in that: The first limiting assembly (200) comprises a plurality of first limiting members (210), and the plurality of first limiting members (210) are arranged in sequence along a first direction of the stimulation electrode (100).
3. The sacral nerve stimulation electrode assembly according to claim 2, characterized in that: The second limiting assembly (300) comprises a plurality of second limiting members (310), and the plurality of second limiting members (310) are arranged in sequence along the second direction of the stimulation electrode (100).
4. The sacral nerve stimulation electrode assembly according to claim 2, characterized in that: The first limiting member (210) comprises a fixing seat (211) and at least one limiting protrusion (212); the fixing seat (211) is fixedly connected to the stimulation electrode (100); and the at least one limiting protrusion (212) is arranged obliquely along the circumference of the fixing seat (211).
5. The sacral nerve stimulation electrode assembly according to claim 4, characterized in that: The first limiting member (210) comprises a plurality of limiting protrusions (212), and the plurality of limiting protrusions (212) are evenly distributed along the circumference of the fixing seat (211).
6. The sacral nerve stimulation electrode assembly according to claim 3, characterized in that: The first limiting member (210) and the second limiting member (310) are configured to have the same structure.
7. The sacral nerve stimulation electrode assembly according to claim 1, characterized in that: The material of the first limiting component (200) and the second limiting component (300) is configured as an elastic material.
8. The sacral nerve stimulation electrode assembly according to claim 6, characterized in that: The material of the first limiting component (200) and the second limiting component (300) is configured as polyurethane material.
9. A sacral nerve stimulation electrode assembly guide device, characterized in that: The sacral nerve stimulation component guiding device is used to embed the sacral nerve stimulation component according to any one of claims 1 to 8 into subcutaneous tissue.
10. The sacral nerve stimulation electrode assembly guiding device according to claim 9, characterized in that: The sacral nerve stimulation electrode assembly guide device has a guide hole (410), and along the direction of movement of the sacral nerve stimulation assembly, the diameter of the cross section of the guide hole (410) gradually decreases to change the shapes of the first limiting assembly (200) and the second limiting assembly (300).
11. The sacral nerve stimulation electrode assembly guide device according to claim 9, characterized in that: The material of the sacral nerve stimulation electrode assembly guide device (400) is configured as a hard transparent plastic material.