Flexible electrode fixing anchor

Abstract

The utility model relates to a flexible electrode fixing anchor, and belongs to the technical field of medical instruments. When the flexible electrode fixing anchor is used, two catheters of an electrode are directly placed into the through hole in the middle of the fixing anchor from the opening according to the implanting position of the electrode, and then operation suture is bound through the suture binding groove, so that the situation that the catheters need to penetrate through the through hole from one end in the prior art is avoided. The flexible electrode fixing anchor is fixed on the muscle or fascia tissue of the body by penetrating a surgical suture line through the line binding hole. And after binding, the opening is closed, so that the guide pipe is tightened, relative movement between the fixing anchor and the guide pipe is avoided, and the fixing is firmer. Gas in the main body can be exhausted through the opening, so that direct placement of the catheter is facilitated.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and in particular relates to a flexible electrode fixing anchor. Background Technology

[0002] Spinal cord stimulation devices are commonly used clinically to suppress pain and treat spinal cord injuries. The spinal cord stimulation electrodes work by stimulating the spinal nerves and need to be fixed in the epidural space of the spinal cord. Currently, electrodes are typically anchored to bone or surrounding tissue near the stimulation site using a fixation anchor.

[0003] Existing electrode anchors, such as those in Chinese invention patent documents CN107029346B and CN107252524A, require the electrode to be pre-passed through the anchor from one end. While this is somewhat inconvenient when only one conduit needs to be passed through, pre-passing is still feasible. However, when using a neurostimulation electrode with two conduits, the two conduits rub against each other during the passage through the anchor, making the operation difficult. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a flexible electrode fixing anchor that does not require insertion of a conduit from one end, in order to overcome the shortcomings of the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A flexible electrode fixing anchor, comprising:

[0007] The main body is made of cylindrical silicone, with a through hole in the middle and an opening connecting the through hole on the axially upward side of the main body;

[0008] The outer wall of the main body is provided with side wings, and the side wings are provided with binding holes. The outer wall of the main body is provided with binding grooves in the circumferential direction, and the binding grooves and binding holes are aligned on the longitudinal section of the main body.

[0009] Preferably, in the flexible electrode fixing anchor of this utility model, the through hole is an elliptical through hole.

[0010] Preferably, in the flexible electrode fixing anchor of this utility model, the through hole is two circular through holes, and each circular through hole is provided with an opening.

[0011] Preferably, in the flexible electrode fixing anchor of this utility model, the side wings are disposed on both sides of the main body.

[0012] Preferably, in the flexible electrode fixing anchor of this utility model, the upper side of the main body has one side wing, and the lower side of the main body has two side wings.

[0013] Preferably, the flexible electrode fixing anchor of this utility model has an elastic element disposed inside the main body.

[0014] Preferably, in the flexible electrode fixing anchor of this utility model, the elastic element is a C-shaped shape memory metal element.

[0015] The beneficial effects of this utility model are:

[0016] This invention relates to a flexible electrode anchor with a binding hole and a binding groove for securing surgical sutures. The suture passes through the binding hole and wraps around the binding groove several times. In use, the two catheters of the electrode are inserted directly into the through-hole in the middle of the anchor, depending on the electrode implantation location. The surgical suture is then secured through the binding groove, eliminating the need for the catheters to be passed through the through-hole from one end, as in existing technologies. The flexible electrode anchor is then fixed to the muscle or fascia tissue by passing the surgical suture through the binding hole. After suturing, the opening closes, tightening the catheters and preventing relative movement between the anchor and the catheters, resulting in a more secure fixation. The opening also allows for the release of gas from the main body, facilitating direct insertion of the catheters. Attached Figure Description

[0017] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a front view of a first embodiment of the flexible electrode fixing anchor of this application;

[0019] Figure 2 This is a perspective view of the first embodiment of the flexible electrode fixing anchor of this application;

[0020] Figure 3 This is a side view of a first embodiment of the flexible electrode fixing anchor of this application;

[0021] Figure 4 This is a front view of a second embodiment of the flexible electrode fixing anchor of this application.

[0022] Figure 5 This is a perspective view of a second embodiment of the flexible electrode fixing anchor of this application.

[0023] Figure 6 This is a side view of a second embodiment of the flexible electrode fixing anchor of this application.

[0024] Figure 7 This is a front view of a third embodiment of the flexible electrode fixing anchor of this application.

[0025] Figure 8This is a cross-sectional view of a third embodiment of the flexible electrode fixing anchor of this application.

[0026] Figure 9 This is a perspective view of the elastic element used in the third embodiment of the flexible electrode fixing anchor of this application.

[0027] Figure 10 This is a schematic diagram of the fixing conduit in the first embodiment of the flexible electrode fixing anchor of this application;

[0028] Figure 11 This is a schematic diagram of the fixing conduit in the second embodiment of the flexible electrode fixing anchor of this application;

[0029] The attached figures are labeled as follows:

[0030] 100 main body;

[0031] 101 Through hole;

[0032] 102 Opening;

[0033] 103 Flanking position;

[0034] 104 Binding holes;

[0035] 105 Cable tie-in groove;

[0036] 106 intervals;

[0037] 107. Elastic component. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0039] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] Example

[0043] This embodiment provides a flexible electrode fixing anchor, such as Figure 1 As shown, it includes:

[0044] A cylindrical silicone body 100 has a through hole 101 in the middle and an opening 102 communicating with the through hole 101 is provided on the axially upward side of the body 100.

[0045] The outer wall of the main body 100 is provided with a side wing 103, and the side wing 103 is provided with a binding hole 104. The outer wall of the main body 100 is provided with a binding groove 105 in the circumferential direction, and the binding groove 105 and the binding hole 104 are aligned on the longitudinal section of the main body 100.

[0046] In this embodiment, the flexible electrode anchor has a binding hole 104 and a binding groove 105 for binding surgical sutures. The surgical suture passes through the binding hole 104 and is wrapped around the binding groove 105 several times. When using this flexible electrode anchor, depending on the electrode implantation location, the two electrode guides are directly inserted from the opening 102 into the through hole 101 in the middle of the anchor. The surgical suture is then bound through the binding groove 105. Therefore, unlike existing technologies, the guides do not need to be passed through the through hole 101 from one end, eliminating concerns about excessive friction between the guides. The flexible electrode anchor is fixed to the muscle or fascia tissue by passing the surgical suture through the binding hole 104. After binding, the opening 102 closes, tightening the guides and preventing relative movement between the anchor and the guides, resulting in a more secure fixation. The opening 102 also allows gas to escape from the main body 100, facilitating direct insertion of the guides. The side wings 103 enhance overall strength and prevent rotation.

[0047] Furthermore, the through hole 101 is an elliptical through hole, which can accommodate two conduits at the same time.

[0048] As an alternative to the through-hole configuration, the through-hole 101 consists of two circular through-holes, such as... Figures 4 to 6Each circular through hole is provided with an opening 102. That is, a gap 106 is formed between two circular through holes. The gap 106 can separate the two conduits, avoid the two wires rubbing against each other, and improve the service life of the wires.

[0049] Furthermore, the side wings 103 are disposed on both sides of the main body 100. The upper side of the main body 100 has one side wing 103, and the lower side of the main body 100 has two side wings 103. That is, one first side wing and two second side wings, with the first side wing located between the two second side wings to ensure the balance of the binding.

[0050] Furthermore, an elastic element 107 is provided within the main body 100. The function of the elastic element 107 is to prevent the conduit from dislodging from the through hole before the anchoring line is fixed. When the conduit is inserted, the operator deforms the elastic element 107. After the conduit is inserted, the elastic element 107 returns to its original shape, preventing the width of the opening 102 from opening due to a small force, thus preventing the conduit from dislodging from the through hole. This arrangement is typically used when the silicone is too soft.

[0051] Furthermore, the elastic element 107 is a C-shaped shape memory metal element. The opening 102 corresponds to the notch of the C-shape. When there are two openings 102, both openings 102 correspond to the notches of the C-shape, so that the conduit can be smoothly inserted into the through hole 101.

[0052] The surface of the main body 100 may be formed with several protrusions. Both ends of the main body 100 are tapered with gradually decreasing diameters. Figure 10 and Figure 11 These are all schematic diagrams showing the interaction with the catheter.

[0053] Based on the above-described preferred embodiments according to this application, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A flexible electrode fixing anchor, characterized in that, include: A cylindrical silicone body (100) has a through hole (101) in the middle and an opening (102) communicating with the through hole (101) is provided on the axially upward side of the body (100). The outer wall of the main body (100) is provided with a side wing (103), the side wing (103) is provided with a binding hole (104), and the outer wall of the main body (100) is provided with a binding groove (105) in the circumferential direction. The binding groove (105) and the binding hole (104) are aligned on the longitudinal section of the main body (100).

2. The flexible electrode fixing anchor according to claim 1, characterized in that, The through hole (101) is an elliptical through hole.

3. The flexible electrode fixing anchor according to claim 1, characterized in that, The through hole (101) consists of two circular through holes, and each circular through hole is provided with an opening (102).

4. The flexible electrode fixing anchor according to claim 1, characterized in that, The side wings (103) are located on both sides of the main body (100).

5. The flexible electrode fixing anchor according to claim 4, characterized in that, The upper side of the main body (100) has a side wing (103), and the lower side of the main body (100) has two side wings (103).

6. The flexible electrode fixing anchor according to claim 1, characterized in that, An elastic element (107) is provided inside the main body (100).

7. The flexible electrode fixing anchor according to claim 6, characterized in that, The elastic element (107) is a C-shaped shape memory metal element.

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