Electrode wire rotating clamp
By designing the limit part and the electrode wire rotation clip of the indicator mark, the problem of interruption of finger operation is solved, the continuity and safety of the electrode wire rotation is achieved, and the risk of surgical treatment is reduced.
Patent Information
- Application Number
- CN202422224225.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-10
AI Technical Summary
The existing electrode wire rotation clamp is prone to interruption when operating the finger, resulting in a long time of spinning out of the spiral electrode, which increases the surgical operation time and infection risk.
An electrode wire rotating clip consisting of a pair of rotatable clamp arms is designed, and a handle end and a clamping end are provided on the clamp arms. The inner side of the handle end is provided with a limiting part and a rotating hole, and the limiting part limiting the force urging part does not take off. An indicator mark is provided on the clamping end, and an integrated structure made of elastic material is made of.
The continuous rotation process of the electrode wire is achieved, the operation time of screwing in or out of the spiral electrode is reduced, the risk of surgical infection is reduced, and the clamping end is prevented by anti-slip design and limiting part.
Smart Images
Figure CN223194218U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of implantable cardiac pacing electrode leads, and in particular to an electrode lead rotation clamp. Background Art
[0002] An implantable cardiac pacing lead is a medical implant that connects one end to a medical device, such as a pacemaker or defibrillator, and the other end directly to the heart or other part of the body that requires electrical stimulation. The lead transmits electrical signals from the device to the heart structure to be stimulated.
[0003] Currently, implantable cardiac pacing leads are primarily categorized as active and passive. The active lead's electrode tip (the end away from the operator) is a retractable spiral electrode. By rotating the connector pin at the connector end (the end closest to the operator), the spiral electrode is driven into the myocardium and secured within the atrium or ventricle, achieving mechanical and electrical connection between the spiral electrode and the myocardium.
[0004] During the specific operation, the operator first clamps the connector pin at the connector end into the clamp of the electrode lead rotating clamp, and then uses the fingers to turn the electrode lead rotating clamp clockwise or counterclockwise for 5-20 turns to rotate the spiral electrode 1.5-2 turns. During the above operation, because the fingers have no convenient fulcrum in the electrode lead rotating clamp, the operation is easily interrupted during the process of rotating the electrode lead rotating clamp with the fingers, which will increase the time to rotate the spiral electrode, and also increase the surgical operation time and the risk of infection to the patient. Summary of the Invention
[0005] Therefore, the technical problem to be solved by the present application is to overcome the defect that the electrode wire rotating clamp is easily interrupted when being rotated by fingers, which leads to a long time for the spiral electrode to be rotated out, thereby providing an electrode wire rotating clamp.
[0006] To solve the above technical problems, the technical solutions of this application are as follows:
[0007] The clamping device is a pair of clamping arms rotatably arranged in the same plane around the same fulcrum, and each of the clamping arms includes a handle end and a clamping end located at opposite ends of the fulcrum; a clamping opening for clamping a connector needle and located on one side of the fulcrum is formed between the pair of clamping ends, and a rotating hole for a force-applying member to extend into and located on the other side of the fulcrum is formed between the pair of handle ends; when the pair of handle ends approach each other under the action of an external force, the opening angle of the pair of clamping ends increases; when the external force applied to the pair of handle ends disappears, the opening angle of the pair of clamping ends decreases to clamp the connector needle located in the clamping opening; a first limiting portion is provided on the inner sides of the pair of handle ends facing each other, the first limiting portion is located on the side of the rotating hole away from the fulcrum, and the first limiting portion is suitable for limiting the force-applying member in the rotating hole from moving out of the opening between the pair of handle ends.
[0008] Furthermore, a second limiting portion is provided on the inner sides of the pair of handle ends facing each other. When the pair of handle ends approach each other under the action of external force, the pair of second limiting portions abut against each other to limit the maximum opening angle of the pair of clamping ends.
[0009] Furthermore, the second limiting portion is located between the rotation hole and the fulcrum, and the distance between a pair of the second limiting portions is smaller than the distance between a pair of the first limiting portions.
[0010] Furthermore, inner sides of a pair of handle ends facing each other are provided with inner recesses, and a hole enclosed by the pair of inner recesses is the rotating hole.
[0011] Furthermore, an outer recess is provided on the outer side of the handle end facing away from the inner recess.
[0012] Furthermore, the outer concave portion is in an arc shape, the width of the outer concave portion is 18 mm-22 mm, and the arc radius of the outer concave portion is 10 mm-15 mm.
[0013] Furthermore, the intersection of the two different surfaces on the handle end is an edge without chamfers or rounded corners.
[0014] Furthermore, a pair of the clamping ends are provided with indicator marks for indicating the clamping positions of the connector pins.
[0015] Furthermore, the rotary clamp is an integrated structure made of elastic material.
[0016] Furthermore, the material of the rotary clamp is any one of acrylonitrile-butylene-styrene, polycarbonate, polyurethane, polyoxymethylene, polysulfone, liquid crystal polymer, polybutylene terephthalate, and polyetheretherketone.
[0017] The technical solution of this application has the following advantages:
[0018] 1. The electrode wire rotating clamp provided by the present application, in the process of using the rotating clamp to control the rotation of the active electrode wire, first press the pair of handle ends of the rotating clamp until the pair of clamping ends are opened to the maximum angle, at this time the connector pin of the active electrode wire can be clamped into the clamping opening between the pair of clamping ends, after the external force pressing the pair of handle ends is removed, the pair of clamping ends of the rotating clamp clamp the connector pin of the active electrode wire; then, extend the force-applying piece into the rotating hole between the pair of handle ends, and the force-applying piece can drive the rotating clamp as a whole to move around the axial direction of the active electrode wire The handle is rotated in a row, and after the rotating clamp rotates 5-20 circles as a whole, the spiral electrode on the active electrode lead will rotate 1.5-2 circles, thereby completing the screw-in process of the spiral electrode on the active electrode lead; in the process of the force-applying member driving the rotating clamp to rotate as a whole, due to the limiting effect of the first limit part on the handle end on the force-applying member, the force-applying member cannot be moved out of the rotating hole, making the process of screwing the spiral electrode out or in simple to operate, and ensuring that the process of operating the spiral electrode rotation is continuous and uninterrupted, which can reduce the operation time of screwing the spiral electrode in or out and reduce the risk of surgical infection.
[0019] 2. The electrode wire rotating clamp provided in the present application has a second limiting portion on the inner side of the handle end, which can limit the maximum opening angle of a pair of clamping ends, thereby preventing the rotating clamp from breaking due to an excessively large opening angle.
[0020] 3. The electrode wire rotating clamp provided in the present application has an arc-shaped outer recess on the outer side of the handle end. The outer recess can fit the size of human fingers, making it easy to hold and press the handle end. During operation, the clamping mouth can be opened and closed by pressing the outer recess on the outer side of the handle end with fingers.
[0021] 4. The electrode wire rotating clamp provided in this application has an edge without chamfers or rounded corners at the intersection of two different surfaces on the handle end, which can play an anti-slip role and prevent fingers from slipping off the handle end during surgical operations.
[0022] 5. The electrode wire rotating clamp provided in this application has a pair of indicator marks on the clamping ends to remind the operator that this is the clamping position for clamping the connector needle.
[0023] 6. The electrode wire rotating clamp provided in this application adopts an integrated structure made of elastic material, which has the advantages of simple structure, low cost, and easy manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0025] Figure 1 This is a schematic diagram of the operation of installing the electrode wire rotating clamp onto the connector pin of the active electrode wire in an embodiment of the present application;
[0026] Figure 2 This is a schematic diagram of the structure of the electrode wire in the embodiment of the present application;
[0027] Figure 3 This is a schematic diagram of the structure of the electrode wire rotating clamp in an embodiment of the present application;
[0028] Figure 4 This is a partially enlarged view of the electrode wire rotating clamp in the embodiment of the present application.
[0029] Explanation of the accompanying symbols: 1. Rotating clamp; 11. Fulcrum; 12. Handle end; 121. Inner recess; 122. Outer recess; 123. Edge; 13. Clamping end; 14. Clamping mouth; 15. Rotating hole; 16. First limiting portion; 17. Second limiting portion; 18. Indicator mark; 19. Inner recessed arc; 2. Electrode wire; 21. Spiral electrode; 22. Connector needle. DETAILED DESCRIPTION
[0030] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described 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 making any creative efforts are within the scope of protection of this application.
[0031] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0032] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0033] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.
[0034] The present application provides an electrode lead rotation clamp, which is used for rotating in and out of an active electrode lead. The electrode lead is applicable to, but not limited to, connecting to a pacemaker, a defibrillator or other electrical stimulation medical equipment.
[0035] Figure 1 2 is a schematic diagram of the operation of installing the rotating clamp 1 on the connector pin 22 of the electrode wire 2. Figure 2 2 is a schematic diagram of the structure of the electrode wire 2, which includes a spiral electrode 21 and a connector needle 22. Figure 1 and Figure 2 By using the rotary clamp 1 to hold the connector needle 22 of the electrode wire 2, the operator can rotate the rotary clamp 1 to drive the electrode wire 2 as a whole, thereby causing the spiral electrode 21 to be rotated into or out of the human tissue.
[0036] like Figure 1 and Figure 3 As shown, the swivel clamp 1 comprises a pair of clamp arms rotatably arranged in the same plane about a common fulcrum 11. Each clamp arm includes a handle end 12 and a clamping end 13 located at opposite ends of the fulcrum 11. A clamping opening 14 is formed between the clamping ends 13, located on one side of the fulcrum 11, for clamping the connector pin 22. A rotation hole 15 is formed between the handle ends 12, located on the other side of the fulcrum 11, for inserting a finger. When the handle ends 12 are moved toward each other under the action of an external force, the opening angle of the clamping ends 13 increases. When the external force acting on the handle ends 12 is removed, the opening angle of the clamping ends 13 decreases, thereby clamping the connector pin 22 within the clamping opening 14. First stoppers 16 are provided on the inner sides of the handle ends 12 facing each other. The first stoppers 16 are located on the side of the rotation hole 15 facing away from the fulcrum 11. The first stoppers 16 are adapted to prevent a finger within the rotation hole 15 from being removed from the opening between the handle ends 12.
[0037] In this electrode wire rotating clamp, when the finger drives the rotating clamp 1 to rotate as a whole, the finger cannot move laterally out of the rotating hole 15 due to the restrictive effect of the first limit part 16 on the handle end 12 on the finger, making the process of rotating the spiral electrode 21 out or in simple to operate, and ensuring that the process of rotating the spiral electrode 21 is continuous and uninterrupted, which can reduce the operation time of rotating the spiral electrode 21 in or out and reduce the risk of surgical infection.
[0038] In some embodiments, a pair of handle ends 12 are provided with an inner recess 121 on the inner sides facing each other, and the inner recess 121 is in the shape of an arc. The hole enclosed by the pair of inner recesses 121 is the rotating hole 15, and the outer shape of the rotating hole 15 is close to a circle. The aperture of the rotating hole 15 is larger than the size of the human index finger so that the index finger can be inserted into the rotating hole 15. During operation, the index finger is inserted into the rotating hole 15, and the index finger is used as a force-applying member. The inner wall of the rotating hole 15 is used as the fulcrum between the index finger and the rotating clamp 1. When the index finger moves, it drives the rotating clamp 1 to rotate as a whole, so that the spiral electrode 21 is screwed out or screwed in. The overall operation is relatively simple. Furthermore, the spacing between the pair of first limiting portions 16 is smaller than the size of the index finger. When the index finger drives the rotating clamp 1 to rotate as a whole, the index finger cannot move laterally out of the opening between the pair of handle ends 12, which can ensure that the operation process of the index finger driving the rotating clamp 1 to rotate is continuous and uninterrupted. In other alternative embodiments, a rod extending along the length of the finger can be fixed on the finger, and the finger controls the rod to extend into the rotating hole 15, and drives the rotating clamp 1 to rotate as a whole through the rod. At this time, the distance between a pair of first limiting portions 16 is smaller than the outer diameter of the rod, and the rod is a force-applying member that directly drives the rotating member to rotate.
[0039] In some embodiments, an outer recess 122 is provided on the outside of the handle end 12, facing away from the inner recess 121. This outer recess 122 is arc-shaped, with a width of 18 mm to 22 mm and a radius of 10 mm to 15 mm. This shape and size of the outer recess 122 fits the size of human fingers, making it easier to grip and press the handle end 12. During operation, the gripping opening 14 is opened and closed by pressing the outer recess 122 on the outside of the handle end 12 with a finger.
[0040] In some embodiments, a second limiting portion 17 is integrally connected to the inner sides of the pair of handle ends 12 facing each other, and the second limiting portion 17 protrudes from the inner side of the handle end 12 toward the gap between the pair of handle ends 12. When the pair of handle ends 12 approach each other under the action of an external force, the pair of second limiting portions 17 abut against each other to limit the maximum opening angle of the pair of clamping ends 13. The provision of the second limiting portion 17 on the inner side of the handle end 12 can limit the maximum opening angle of the pair of clamping ends 13, preventing the rotary clamp 1 from breaking due to excessive opening angles. Specifically, the maximum opening distance of the clamping opening 14 between the pair of clamping ends 13 is greater than the outer diameter of the connector needle 22, so that the connector needle 22 can be installed or removed.
[0041] Furthermore, the first limiting portion 16 and the second limiting portion 17 are located at both ends of the inner recess 121 , the second limiting portion 17 is located between the rotating hole 15 and the fulcrum 11 , and the distance between the pair of second limiting portions 17 is smaller than the distance between the pair of first limiting portions 16 .
[0042] like Figure 1 As shown, the intersection of the two different surfaces on the handle end 12 is an edge 123 without chamfers or rounded corners. The edge 123 is a right angle, which can play an anti-slip role and prevent fingers from slipping off the handle end 12 during surgical operations.
[0043] In some embodiments, as Figure 4 As shown, the pair of clamping ends 13 are provided with indicator marks 18 for indicating the clamping position of the connector pin 22. Indicator marks 18 remind the operator that this is the clamping position for clamping the connector pin 22. The angles where the pair of handle ends 12 intersect with the fulcrum 11, as well as the angles where the pair of handle ends 12 intersect with the fulcrum 11, are formed as concave arcs 19. The provision of concave arcs 19 on the swivel clamp 1 prevents interference with the structure at these angles when the handle ends 12 or clamping ends 13 are bent relative to the fulcrum 11, thereby improving the elastic deformation capability of the swivel clamp 1.
[0044] In some embodiments, the swivel clamp 1 is an integral, injection-molded structure made of an elastic material. When the handles 12 on either side are pressed, the clamping openings 14 remain open at a certain angle to accommodate the connector pin 22 . When the pressure on the handles 12 is removed, the clamping openings 14 close, ensuring that the connector pin 22 can rotate with the swivel clamp 1 .
[0045] Specifically, the rotating clamp 1 is made of an elastic material; the elastic material can be any of acrylonitrile-butylene-styrene, polycarbonate, polyurethane, polyoxymethylene, polysulfone, liquid crystal polymer, polybutylene terephthalate, and polyetheretherketone. The rotating clamp 1, constructed of an elastic material as a single piece, has advantages such as simplicity, low cost, and ease of manufacture. These elastic materials ensure that the electrode lead rotating clamp maintains sufficient grip on the electrode lead during operation.
[0046] In some embodiments, the length of the connector needle 22 is 5.08±0.25 mm, the thickness of the rotary clamp 1 should not be greater than the length of the connector needle 22, and the thickness of the rotary clamp 11 is designed to be 3.5-4 mm, which is suitable for finger gripping.
[0047] The method for using the electrode wire rotating clamp provided in this embodiment specifically includes the following steps:
[0048] S1. Press the outer concave portion 122 on the outer side of the handle end 12 with two fingers simultaneously until the clamping opening 14 opens to the maximum angle;
[0049] S2. Clamp the connector pin 22 of the electrode wire 2 into the clamping opening 14. After removing the external force pressing the handle end 12, the rotating clamp 1 has sufficient clamping force on the electrode wire 22.
[0050] S3. Insert a finger into the rotating hole 15 and use the finger to move the rotating clamp 1 around the electrode wire for 5-20 turns. When the spiral electrode 21 is observed to rotate 1.5-2 turns, stop rotating the rotating clamp 1.
[0051] S4. Use two fingers to press the outer concave portion 122 on the outer side of the handle end 12 again until the clamping opening 14 opens to the maximum angle, and remove the connector needle 22 of the electrode wire 2.
[0052] In summary, the electrode wire rotation clamp provided in the embodiment of the present application makes the electrode wire implantation process more convenient, reduces the operation time, and reduces the risk of surgical infection by designing a rotation hole 15 on the electrode wire rotation clamp that is convenient for finger manipulation; by designing a first limiting portion 16 on the inner side of the handle end 12, when the finger is placed in the rotation hole 15 and rotated, the finger will not slip out and cause the rotation process to be interrupted; by designing a second limiting portion 17 on the inner side of the handle end 12, the second limiting portion 17 can limit the maximum opening angle of the clamping mouth 14 to prevent the rotation clamp 1 from breaking due to excessive opening angle; the electrode wire rotation clamp is processed by injection molding as an integrated part, and has a simple structure, is easy to implement, and is convenient for mass production.
[0053] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of this application.
Claims
1. An electrode wire rotating clamp, characterized in that: The rotary clamp (1) comprises a pair of clamp arms rotatably arranged in the same plane around the same fulcrum (11), and each of the pair of clamp arms comprises a handle end (12) and a clamp end (13) located at opposite ends of the fulcrum (11); a clamping opening (14) for clamping a connector needle (22) and located on one side of the fulcrum (11) is formed between the pair of clamp ends (13); a rotating hole (15) for a force-applying member to extend into and located on the other side of the fulcrum (11) is formed between the pair of handle ends (12); when the pair of handle ends (13) are rotated, the force-applying member can be rotated. When the handle ends (12) approach each other under the action of an external force, the opening angle of the pair of clamping ends (13) increases; when the external force applied to the pair of handle ends (12) disappears, the opening angle of the pair of clamping ends (13) decreases to clamp the connector needle (22) located in the clamping opening (14); a first limiting portion (16) is provided on the inner sides of the pair of handle ends (12) facing each other, and the first limiting portion (16) is suitable for limiting the force-applying member in the rotating hole (15) from moving out of the opening between the pair of handle ends (12).
2. The electrode wire rotating clamp according to claim 1, characterized in that: A second limiting portion (17) is further provided on the inner sides of the pair of handle ends (12) facing each other. When the pair of handle ends (12) approach each other under the action of an external force, the pair of second limiting portions (17) abut against each other to limit the maximum opening angle of the pair of clamping ends (13).
3. The electrode wire rotating clamp according to claim 2, characterized in that: The second limiting portion (17) is located between the rotating hole (15) and the fulcrum (11), and the distance between a pair of the second limiting portions (17) is smaller than the distance between a pair of the first limiting portions (16).
4. The electrode wire rotating clamp according to claim 1, characterized in that: Inner recesses (121) are provided on the inner sides of the pair of handle ends (12) facing each other, and the hole enclosed by the pair of inner recesses (121) serves as the rotating hole (15).
5. The electrode wire rotating clamp according to claim 4, characterized in that: An outer recess (122) is provided on the outer side of the handle end (12) facing away from the inner recess (121).
6. The electrode wire rotating clamp according to claim 5, characterized in that: The outer concave portion (122) is in an arc shape, the width of the outer concave portion (122) is 18 mm to 22 mm, and the arc radius of the outer concave portion (122) is 10 mm to 15 mm.
7. The electrode wire rotating clamp according to claim 1, characterized in that: The intersection of the two different surfaces on the handle end (12) is an edge (123) without chamfers or rounded corners.
8. The electrode wire rotating clamp according to claim 1, characterized in that: A pair of the clamping ends (13) are provided with indication marks (18) for indicating the clamping position of the connector needle (22).
9. The electrode wire rotating clamp according to any one of claims 1 to 7, characterized in that: The rotary clamp (1) is an integrated structure made of elastic material.
10. The electrode wire rotating clamp according to claim 9, characterized in that: The material of the rotating clamp (1) is any one of acrylonitrile-butylene-styrene, polycarbonate, polyurethane, polyoxymethylene, polysulfone, liquid crystal polymer, polybutylene terephthalate, and polyetheretherketone.