Electrode protection cap

Abstract

The present application relates to the technical fields of implantable medical devices, in particular to an electrode protection device. The electrode protection cap is characterized by being composed of a main body, a locking component and a sealing component, wherein the main body is internally hollow, the hollow structure forms a cavity, the main body has an opening at one end, the electrode is inserted into the cavity through the opening, the sealing component is arranged at the opening end, and the locking component is embedded at the position close to the opening of the main body, the locking component penetrates through one side wall of the main body, and plays the role of pressing and locking the electrode. The electrode protection cap of the present application has a locking structure and a sealing structure, and the electrode can be fixed by locking the screw with a torque screwdriver after being inserted, the electrode can be pulled out by releasing the screw when the protection cap is removed, the overall operation is relatively simple, the clamping is firm, the defects of the protection cap in the prior art can be solved, and the electrode is effectively protected.

Description

Technical Field

[0001] This invention relates to the field of implantable medical device technology, and more specifically to an electrode protection device. Background Technology

[0002] Deep brain stimulation (DBS) is currently an effective technique for treating advanced and drug-resistant motor and mental disorders. It is particularly effective in treating Parkinson's disease.

[0003] During DBS surgery, an electrical stimulation system can be implanted to provide electrical stimulation to the target tissue in the patient's body. This system includes a pulse generator, electrodes, and extension wires connecting the two. The pulses generated by the pulse generator are transmitted to the electrodes via the extension wires.

[0004] Local anesthesia of the head is required when placing the electrodes, while general anesthesia is used for the subsequent placement of the extension leads and pulse generator. These two steps may be performed in stages. Therefore, to prevent infection, after the electrodes are implanted and fixed in the skull, they need to be temporarily coiled up and tucked under the scalp, and the scalp incision needs to be temporarily sutured. When coiling and tucking the electrodes under the scalp, if the electrode connection ends are not protected, blood may enter the electrodes, and they may also be subject to mechanical bending, potentially damaging the connection ends. In this case, using an electrode protective cap to cover the electrode connection ends can protect them and prevent leakage.

[0005] To protect the electrodes, existing technologies use electrode protective caps. One method involves locking a contact point with a screw, then using a sleeve to cover the connection between the electrode and the protective cap, and finally securing both ends of the sleeve with surgical sutures to achieve a seal. This method involves many parts, is complex to operate, and is relatively bulky. Furthermore, removing the protective cap requires cutting the surgical sutures and removing the sleeve before the locking screw can be released, making the operation quite complicated. In actual surgery, especially in emergency situations, this seemingly simple additional procedure can increase the complexity of the operation, extend the surgical time, and in severe cases, potentially increase surgical risks.

[0006] Existing technology also provides another method: using an electrode cap with a sealing ring structure for direct insertion or removal of the electrode. However, this method relies on the insertion structure and the sealing ring for fixation. If the sealing ring is too large, the clamping force on the electrode is insufficient, easily leading to electrode detachment; conversely, if the sealing ring is too small, the electrode is difficult to insert. In actual surgery, electrode detachment leading to infection, or difficulty in electrode insertion increasing surgical time, both pose significant risks to the patient. Summary of the Invention

[0007] To address the problems existing in the above methods, this invention provides a novel electrode protection cap solution that completely avoids the aforementioned drawbacks. Specifically, this invention provides an electrode protection cap, characterized by comprising three parts: a main body, a locking component, and a sealing component. The main body has a hollow structure forming a cavity. One end of the main body has an opening through which the electrode is inserted into the cavity. A sealing component is provided at the opening end, and a locking component is embedded in the main body near the opening. The locking component penetrates one side wall of the main body, serving to press and lock the electrode.

[0008] Furthermore, the locking component includes a locking member and a screw; the locking member has a hole in a first direction through which the electrode passes, and a threaded hole in a second direction that is substantially perpendicular to the first direction for the screw to pass through. The locking member and the screw are threadedly connected, and the screw passes through one side wall of the main body. When the screw is tightened, it can press the electrode.

[0009] Furthermore, the main body is provided with a protrusion, a groove is cut into the protrusion to accommodate the screw, and a sealing plug is provided in the groove of the protrusion.

[0010] Furthermore, the raised areas are provided with patterns or bumps to increase friction.

[0011] Furthermore, the screw is a flat-end screw.

[0012] Furthermore, the sealing component is specifically a sealing ring.

[0013] Furthermore, the main body and / or sealing ring are made of soft rubber material.

[0014] Furthermore, the main body and the sealing ring are integrally molded.

[0015] Furthermore, a stepped conical hole is formed at the open end of the main body. The conical part of the stepped conical hole extends in the opposite direction to the open end and the diameter of the hole decreases. The stepped conical hole forms a stepped hole section with a large diameter at the open end. The stepped hole section with a large diameter is used to accommodate the sealing component.

[0016] The electrode protective cap of this application has a locking structure and a sealing structure (compared with the prior art, there is no need to add a sleeve for sealing). After inserting the electrode, the screw can be tightened with a torque screwdriver to fix the electrode. When removing the protective cap, the screw can be released to pull out the electrode. The overall operation is simple and the clamping is firm. It can solve the defects of the protective cap in the prior art, and at the same time effectively protect the electrode. It can also protect the electrode from deformation within the tolerance range by using a flat-end screw and a torque screwdriver.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 This is the electrode protective cap of the present invention;

[0020] Figure 2 This is a schematic diagram of the electrode protective cap of the present invention after it has been inserted into the electrode;

[0021] Figure 3 This is a cross-sectional view of the electrode protective cap of the present invention inserted into the electrode;

[0022] Figure 4 This is a schematic diagram of the electrode locking operation of the electrode protection cap of the present invention.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1-Cavity; 2-Locking element; 3-Screw; 4-Sealing plug; 5-Sealing ring; 6-Electrode; 7-Main body Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0026] See Figure 1-4 As shown, the present invention provides an electrode protective cap, which consists of three parts: a main body 7, a locking component, and a sealing component. The main body 7 has a hollow structure inside, forming a cavity 1. One end of the main body 7 has an opening through which an electrode 6 is inserted into the cavity 1. A sealing component is provided at the opening end, and a locking component is embedded in the main body near the opening. The locking component penetrates one side wall of the main body and serves to press and lock the electrode.

[0027] The main body is further formed using a soft rubber material. The sealing component can specifically be a sealing ring 4. A stepped conical hole is formed at the open end of the main body. The conical portion of the stepped conical hole extends in the opposite direction to the open end, and its diameter decreases. A large-diameter stepped hole section is formed at the open end of the stepped conical hole to accommodate the sealing ring. The conical portion extending in the opposite direction to the open end and the diameter decreasing facilitates electrode insertion and reduces insertion resistance.

[0028] The locking mechanism includes a screw and a sealing plug. The screw penetrates one side wall of the main body. During tightening, the screw presses directly against the electrode, thereby locking the electrode in place.

[0029] The locking component includes a locking member and a screw; the locking member has a hole in a first direction through which the electrode passes, and a threaded hole in a second direction that is substantially perpendicular to the first direction for the screw to pass through. The locking member and the screw are threadedly connected, and the screw passes through one side wall of the main body. When the screw is tightened, it can press the electrode.

[0030] The main body has a protrusion with a groove to accommodate the screw, and a sealing plug is placed in the groove of the protrusion to prevent body fluid from seeping into the electrode cap. The protrusion is also provided with patterns or bumps to increase friction and make it easy for the operator to hold.

[0031] The method of using this invention is as follows: When the electrode needs protection, insert the electrode into the open end of the electrode protection cap body. After insertion to the bottom, use a torque screwdriver to insert the sealing plug and tighten the screw to fix and protect the electrode. When the electrode protection cap needs to be removed, use a torque screwdriver to insert the sealing plug and loosen the screw to easily pull out the electrode. It can also protect the electrode from deformation within its tolerance range by using a flat-end screw and a torque screwdriver.

[0032] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this invention are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An electrode protection cap, characterized by: The utility model discloses a locking device for electrode, which is composed of a main body, a locking part and a sealing part, wherein the main body is hollow inside, forming a cavity, and has an opening at one end through which an electrode is inserted into the cavity; the sealing part is arranged at the opening end, and the locking part is embedded at a position close to the opening of the main body and penetrates through a side wall of the main body, thereby pressing and locking the electrode. The locking part comprises a locking piece and a screw. The main body is provided with a protrusion for holding, and the protrusion is slotted to accommodate the screw, and a sealing plug is arranged in the slot of the protrusion.

2. The electrode protection cap of claim 1, wherein: The locking piece has a hole for the electrode to pass through in a first direction, and a threaded hole for the screw to pass through in a second direction which is substantially perpendicular to the first direction; the locking piece is threadedly connected with the screw, the screw penetrates through a side wall of the main body, and the screw can press the electrode after being tightened.

3. The electrode protection cap of claim 1, wherein: The protrusion is provided with patterns or convex points for increasing friction.

4. The electrode protection cap according to any one of claims 1 to 3, characterized in that: The screw is a flat-end screw.

5. The electrode protection cap according to any one of claims 1-3, characterized in that: The sealing part is a sealing ring.

6. The electrode protection cap of any one of claim 5, characterized in that: The main body and / or the sealing ring are made of soft rubber material.

7. The electrode protection cap of claim 6, wherein: The main body and the sealing ring are integrally formed.

8. The electrode protection cap of any one of claims 1-3, wherein: A stepped taper hole is formed at the opening end of the main body, the tapered part of the stepped taper hole extends in the opposite direction of the opening end and has a reduced hole diameter, the stepped taper hole forms a stepped hole section with a large hole diameter at the opening end, and the stepped hole section with a large hole diameter is used to accommodate the sealing part.

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