Cardiac pacemaker electrode wire signal adapter

Abstract

The utility model discloses a cardiac pacemaker electrode lead signal adapter, which belongs to the technical field of medical instruments and particularly comprises a sleeve and a forceps holder seat. An anode wiring assembly and a cathode wiring assembly which are used for being connected with an anode column and a cathode column of a cardiac pacemaker electrode wire and can rotate are arranged in the sleeve. And two conducting strips are fixed on the forceps holder seat and are electrically connected with the anode wiring assembly and the cathode wiring assembly respectively. According to the utility model, the electrode terminal of the electrode lead is connected in a plugging manner, and the 360-degree unobstructed rotation design of the cathode wiring assembly and the anode wiring assembly and the independently arranged wire clamp mechanism are matched, so that the unobstructed rotation of the electrode lead can be ensured, and the rotation of the electrode lead can be ensured during the rotation process. And the cathode column and the anode column can always keep stable signal connection with the adapter, so that the detection instrument can continuously display electrode signals in real time, and the installation efficiency and accuracy of the cardiac pacemaker electrode lead are improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a signal adapter for cardiac pacemaker electrode leads. Background Technology

[0002] During the implantation of a pacemaker, medical staff need to slowly rotate the pacemaker's electrode leads so that the tip of the lead is slowly screwed into the designated position in the myocardium. To determine whether the tip of the electrode lead is screwed into the correct position, a corresponding testing instrument needs to be connected to the tail end of the electrode lead.

[0003] Currently, when connecting the cathode and anode posts at the end of the pacemaker electrode leads to the testing instrument, they are usually clamped directly onto the cathode and anode posts at the end of the electrode leads using wire clips. The two cannot rotate freely between them. Therefore, doctors need to repeatedly connect the testing instrument and make constant attempts to adjust the wires to achieve the desired result during the installation process. The entire operation is extremely time-consuming and laborious.

[0004] To address this, we designed a signal adapter that enables uninterrupted signal connection without affecting the rotation of the pacemaker electrode leads. Utility Model Content

[0005] The purpose of this invention is to provide a signal adapter for cardiac pacemaker electrode leads to solve the aforementioned problems in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cardiac pacemaker electrode lead signal adapter specifically includes a sheath and a clamping base. The sheath contains an anode wiring assembly and a cathode wiring assembly for connecting to the anode and cathode posts of the cardiac pacemaker electrode leads and capable of 360-degree rotation. Simultaneously, two conductive plates are fixed on the clamping base, each electrically connected to the anode and cathode wiring assemblies to form a clamping mechanism. To facilitate the installation of the anode and cathode wiring assemblies, the sheath is specifically divided into three parts: a middle section, a front end, and a rear end, which are bonded and fixed together to form a single unit.

[0008] Furthermore, in order to achieve unobstructed 360-degree rotation of the anode wiring assembly, the anode wiring assembly specifically includes two parts: an inner sleeve ring and a conductive fixing ring. The conductive fixing ring is fixedly sleeved outside the inner sleeve ring, and three spring pieces that bend towards the inner sleeve ring are stamped outward at equal intervals around the circumference in the middle of the conductive fixing ring. The positions where the spring pieces are stamped out on the conductive fixing ring form windows.

[0009] Meanwhile, the inner sleeve has a circular hole at the center of the opening, and an annular ball bearing ring is integrally stamped on the inner side of the spring corresponding to the circular hole. Each spring and the corresponding circular hole are provided with a ball bearing A, which is made of metal. The diameter of the ball bearing A is larger than the diameter of the circular hole. In this design, since the diameter of the circular hole is smaller than that of the ball bearing A, the ball bearing A is tightly attached to the circular hole under the action of the spring, so that part of the spherical surface of the ball bearing A forms a rolling contact point on the inner side of the inner sleeve. Moreover, with the help of the force of the spring, it can be ensured that the ball bearing A can always maintain a thrust towards the inner side of the inner sleeve, thereby ensuring that the anode post of the electrode wire can always maintain a stable connection with the ball bearing A during rotation. During this process, the ball bearing A also maintains a stable connection with the spring, thereby ensuring a stable signal connection between the anode post and the anode wiring assembly.

[0010] Furthermore, in order to achieve unobstructed 360-degree rotation of the cathode wiring assembly, the cathode wiring assembly includes a mover insert ring, a support ring assembly, and a stator ring; the mover insert ring includes a stainless steel sleeve, the top of which is integrally formed with an outwardly extending and annularly designed positioning disc, and the stator ring and the support ring assembly are both movably fitted on the outside of the stainless steel sleeve, with the support ring assembly located between the stator ring and the positioning disc.

[0011] The support ring assembly includes two nested positioning rings, with a plurality of ball bearings C arranged circumferentially between the two positioning rings. The ball bearings C are made of metal. The surfaces of the ball bearings C are in contact with the bottom surface of the positioning disk and the top surface of the stator ring, respectively.

[0012] Furthermore, the top of the positioning disk has several balls B distributed around the circumference of the stainless steel sleeve. The positioning disk has an integrally formed annular groove corresponding to the positions of balls B and balls C to position balls B and balls C. In the whole design, the mover insert ring and the stator ring are supported by a support ring assembly. With the help of balls C in the support ring assembly, the mover insert ring can rotate freely inside the stator ring without obstruction. Moreover, the mover insert ring can maintain a stable connection with the stator ring through balls C during rotation to ensure continuous signal transmission.

[0013] Furthermore, in order to ensure a stable connection between the cathode post of the electrode wire and the cathode wiring assembly, several V-shaped anti-disengagement springs are integrally formed by stamping around the surface of the stainless steel sleeve at equal intervals toward the inside of the stainless steel sleeve.

[0014] Furthermore, to facilitate the insertion of the cathode and anode posts of the electrode wires and the installation of the anode wiring assembly, the middle section of the middle tube and the front end tube are electrode insertion holes. An anode wiring mounting groove with an annular design is integrally formed on the top of the middle tube for installing the anode wiring assembly. Three positioning feet are integrally formed on the bottom of the front end tube at the gap between the three springs in the anode wiring assembly. It should be further noted that, in order to prevent the ball A from completely detaching from the round hole, the distance between the back of the spring and the bottom of the anode wiring mounting groove is less than the height of the ball A protruding inside the inner ring.

[0015] Furthermore, to facilitate the installation of the cathode wiring assembly, a cathode wiring mounting groove for installing the cathode wiring assembly is integrally formed at the center of the tail tube. The top of the cathode wiring mounting groove is in communication with the electrode insertion hole. An annular clearance groove is provided in the middle of the cathode wiring mounting groove corresponding to the position of the V-shaped anti-disengagement spring. The top of the cathode wiring mounting groove is integrally formed with a stator ring and support ring assembly for installing the stator ring and support ring assembly. The stator ring is fixed at the bottom of the support ring groove. The bottom of the middle section tube is integrally formed with a ball groove for the rolling of ball B.

[0016] Furthermore, to facilitate the connection of the instrument's clamps to the anode and cathode wiring assemblies via the clamp seat for continuous signal transfer, the clamp seat is integrally formed at the end of the tail tube. Two clamping grooves are integrally formed on the clamp seat, and two conductive plates are fixed within these grooves. Anti-slip textures are provided on both conductive plates to improve the stability of the connection between the clamps and the conductive plates. Additionally, two conductive strips are located inside the sleeve. One end of each strip is electrically connected to the conductive fixing ring and the stator ring, respectively, while the other end is electrically connected to the two conductive plates. This ensures continuous signal transfer without affecting the free rotation of the electrode leads, allowing doctors to quickly install the pacemaker's electrode leads.

[0017] Beneficial effects:

[0018] This invention is designed based on the electrode end structure of commonly used cardiac pacemaker electrode leads on the market. It adopts a plug-in method to connect to the electrode ends of the lead, and with the 360-degree unobstructed rotation design of the cathode and anode connection assemblies, as well as a separately set wire clamp mechanism for connecting to the testing instrument, the signal adapter, after being plugged into the cardiac pacemaker electrode lead, can ensure unobstructed rotation of the electrode lead and ensure that the cathode and anode posts of the electrode ends maintain a stable signal connection with the adapter during the rotation process. This ensures that the testing instrument can continuously display the electrode signal in real time, thereby improving the installation efficiency and accuracy of cardiac pacemaker electrode leads. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of a half-section of the present invention;

[0021] Figure 3 This is a schematic diagram of a half-section of the sleeve structure of this utility model;

[0022] Figure 4 This is an exploded view of the cathode wiring assembly of this utility model;

[0023] Figure 5 This is a schematic diagram of the anode wiring assembly of this utility model.

[0024] In the diagram: 1. Sleeve; 101. Middle section tube; 111. Anode wiring mounting groove; 112. Electrode insertion hole; 102. Front end tube; 121. Positioning foot; 103. Tail end tube; 131. Cathode wiring mounting groove; 132. Clearance groove; 133. Support ring groove; 134. Ball groove; 2. Clamp seat; 3. Clamp groove; 4. Conductive sheet; 5. Anode wiring assembly; 501. Inner collar; 511. Round hole; 502. Conductive fixing ring; 521. Spring; 522. Window; 523. Ball slip ring; 503. Ball A; 6. Cathode wiring assembly; 601. Mover insertion ring; 611. Stainless steel sleeve; 612. Positioning plate; 613. V-shaped anti-detachment circlip; 602. Support ring assembly; 621. Positioning ring; 622. Ball C; 603. Stator ring; 604. Ball B. Detailed Implementation

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0026] Example:

[0027] Currently, when installing pacemaker electrode leads, the cathode and anode posts at their ends are directly clamped to the monitoring instruments using lead clamps. This prevents the leads from rotating freely, forcing doctors to repeatedly connect and adjust the leads to achieve the desired result. This makes the entire procedure extremely time-consuming and labor-intensive. To address this, we have designed a signal adapter that allows for uninterrupted signal connection without affecting the rotation of the pacemaker electrode leads. The specific solution is as follows:

[0028] like Figure 1-5 As shown, this embodiment provides a cardiac pacemaker electrode lead signal adapter, specifically including a sleeve 1 and a clamp seat 2; the sleeve 1 is provided with an anode wiring assembly 5 and a cathode wiring assembly 6 for connecting to the anode and cathode posts of the cardiac pacemaker electrode leads and capable of 360-degree rotation; at the same time, two conductive plates 4 are fixed on the clamp seat 2, and the two conductive plates 4 are electrically connected to the anode wiring assembly 5 and the cathode wiring assembly 6 respectively to form a clamping mechanism. In order to facilitate the installation of the anode wiring assembly 5 and the cathode wiring assembly 6, the sleeve 1 is specifically composed of three parts: a middle section tube 101, a front end tube 102, and a tail end tube 103, and the front end tube 102, the middle section tube 101, and the tail end tube 103 are bonded and fixed together to form an integral unit.

[0029] The entire device is connected to the electrode leads via a plug-in method. Utilizing the 360-degree unobstructed rotation design of the cathode wiring assembly 6 and the anode wiring assembly 5, as well as a separately designed clamp mechanism for connecting the testing instrument, the signal adapter, after being plugged into the pacemaker electrode leads, ensures both unobstructed rotation of the electrode leads and a stable signal connection between the cathode and anode posts of the electrode leads and the adapter during rotation. This ensures that the testing instrument can continuously display the electrode signals in real time, thereby improving the efficiency and accuracy of pacemaker electrode lead installation.

[0030] like Figure 5 As shown, in order to achieve unobstructed 360-degree rotation of the anode wiring assembly 5, the anode wiring assembly 5 specifically includes two parts: an inner sleeve ring 501 and a conductive fixing ring 502. The conductive fixing ring 502 is fixedly sleeved outside the inner sleeve ring 501, and three spring pieces 521 that bend towards the inner sleeve ring 501 are stamped outward at equal intervals around the center of the conductive fixing ring 502. The positions where the spring pieces 521 are stamped out on the conductive fixing ring 502 form windows 522.

[0031] Meanwhile, the inner ring 501 has a circular hole 511 at the center of the window 522, and an annular ball bearing ring 523 is integrally stamped on the inner side of the spring 521 at the position corresponding to the circular hole 511. Each spring 521 is provided with a ball bearing A503 between it and the corresponding circular hole 511. The ball bearing A503 is made of metal, and its diameter is larger than the diameter of the circular hole 511. In this design, because the diameter of the circular hole 511 is smaller than that of the ball bearing A503, the ball bearing A503 is tightly attached to the spring 521. The circular hole 511 allows a portion of the spherical surface of the ball A503 to form a rolling contact point inside the inner sleeve 501. Furthermore, with the help of the spring 521, the ball A503 can always maintain a thrust towards the inner side of the inner sleeve 501. This ensures that the anode post of the electrode wire can maintain a stable connection with the ball A503 during rotation. During this process, the ball A503 also maintains a stable connection with the spring 521, thereby ensuring a stable signal connection between the anode post and the anode wiring assembly 5.

[0032] To achieve unobstructed 360-degree rotation of the cathode wiring assembly 6, such as Figure 4 As shown, its cathode wiring assembly 6 includes a mover insert ring 601, a support ring assembly 602, and a stator ring 603; the mover insert ring 601 includes a stainless steel sleeve 611, the top of which is integrally formed with an outwardly extending and annularly designed positioning disk 612, while the stator ring 603 and the support ring assembly 602 are both movably sleeved on the outside of the stainless steel sleeve 611, and the support ring assembly 602 is located between the stator ring 603 and the positioning disk 612.

[0033] The ring assembly 602 includes two nested positioning rings 621, with a plurality of ball bearings C622 arranged circumferentially between the two positioning rings 621. The ball bearings C622 are made of metal. The surfaces of the ball bearings C622 are in contact with the bottom surface of the positioning disk 612 and the top surface of the stator ring 603, respectively.

[0034] The top of the positioning disk 612 has several balls B604 distributed around the circumference of the stainless steel sleeve 611. The positioning disk 612 has an integrally formed annular groove corresponding to the positions of the balls B604 and C622 to position the balls B604 and C622. In the whole design, the mover ring 601 and the stator ring 603 are supported by the support ring assembly 602. With the help of the balls C622 in the support ring assembly 602, the mover ring 601 can rotate freely inside the stator ring 603 without obstruction. Moreover, the mover ring 601 can maintain a stable connection with the stator ring 603 through the balls C622 during rotation to ensure continuous signal transmission.

[0035] To ensure a stable connection between the cathode post of the electrode wire and the cathode wiring assembly 6, several V-shaped anti-disengagement springs 613 are integrally formed by stamping around the surface of the stainless steel sleeve 611 at equal intervals towards the inside of the stainless steel sleeve 611. When the cathode post of the motor wire is inserted into the stainless steel sleeve 611, the V-shaped anti-disengagement springs 613 are pressed outward, so that the V-shaped anti-disengagement springs 613 are compressed and form pressure to clamp the cathode post towards the inside of the stainless steel sleeve 611. On the one hand, this can improve the stability of the insertion and removal assembly between the device and the electrode wire, and on the other hand, it can also enable the cathode post to drive the mover insertion ring 601 to rotate during the rotation of the electrode wire.

[0036] To facilitate the insertion of the cathode and anode posts of the electrode wires, such as Figure 1-3 As shown, and to facilitate the installation of the anode wiring assembly 5, the middle section of the middle tube 101 and the front end tube 102 are electrode insertion holes 112. An anode wiring mounting groove 111 with an annular design for installing the anode wiring assembly 5 is integrally formed on the top of the middle tube 101. Three positioning feet 121 are integrally formed at the bottom of the front end tube 102 corresponding to the gap between the three springs 521 in the anode wiring assembly 5, which separates the three springs 521 and prevents the anode wiring assembly 5 from deflecting. It should be further noted that, in order to prevent the ball A503 from completely detaching from the round hole 511, the distance between the back of its spring 521 and the bottom of the anode wiring mounting groove 111 is less than the height of the ball A503 protruding inside the inner sleeve 501.

[0037] To facilitate the installation of the cathode wiring assembly 6, a cathode wiring mounting groove 131 for mounting the cathode wiring assembly 6 is integrally formed at the center of the tail tube 103. The top of the cathode wiring mounting groove 131 is through the electrode insertion hole 112, and an annular clearance groove 132 is formed in the middle of the cathode wiring mounting groove 131 corresponding to the position of the V-shaped anti-disengagement spring 613. The top of the cathode wiring mounting groove 131 is integrally formed with a stator ring 603 and a ring support assembly 602 for mounting. The stator ring 603 is fixed at the bottom of the support ring groove 133; the bottom of the middle section tube 101 is integrally formed with a ball groove 134 for the ball B604 to roll. It should be noted that the stainless steel sleeve 611 can achieve 360-degree unobstructed rotation with the stator ring 603 in the cathode wiring mounting groove 131 with the cooperation of the support ring assembly 602 and the ball B604 and the ball groove 134, so as to ensure that the electrode wire can still maintain stable signal transmission between the cathode column and the adapter during the rotation.

[0038] To facilitate the connection of the clamp of the testing instrument to the anode wiring assembly 5 and the cathode wiring assembly 6 via the clamp seat 2 to complete the continuous signal transfer, the clamp seat 2 is integrally formed at the end of the tail tube 103, and two clamping grooves 3 are integrally formed on the clamp seat 2. Two conductive plates 4 are fixed in the two clamping grooves 3. At the same time, anti-slip textures are provided on the two conductive plates 4 to improve the stability of the connection between the clamp and the conductive plates 4. Meanwhile, two conductive strips are provided inside the sleeve 1. One end of the two conductive strips is electrically connected to the conductive fixing ring 502 and the stator ring 603 respectively, and the other end of the two conductive strips is electrically connected to the two conductive plates 4 respectively. This completes the continuous signal transfer without affecting the free rotation of the electrode leads, so that doctors can install the front end of the pacemaker electrode leads in the shortest possible time.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A signal adapter for cardiac pacemaker electrode leads, characterized in that, It includes a cannula (1) and a clamp seat (2); the cannula (1) is provided with an anode wiring assembly (5) and a cathode wiring assembly (6) for connecting to the anode and cathode posts of the pacemaker electrode leads and are rotatable. Two conductive plates (4) are fixed on the clamp base (2), and the two conductive plates (4) are electrically connected to the anode wiring assembly (5) and the cathode wiring assembly (6) respectively.

2. A cardiac pacemaker electrode lead signal adapter according to claim 1, characterized in that, The anode wiring assembly (5) includes an inner sleeve ring (501) and a conductive fixing ring (502). The conductive fixing ring (502) is fixedly sleeved on the outside of the inner sleeve ring (501). The middle part of the conductive fixing ring (502) is stamped with three springs (521) that are bent towards the inner sleeve ring (501) at equal intervals around the circumference. The positions where the springs (521) are stamped out on the conductive fixing ring (502) form an opening (522).

3. A cardiac pacemaker electrode lead signal adapter according to claim 2, characterized in that, The inner sleeve (501) has a round hole (511) at the center of the opening (522). The inner side of the spring (521) is integrally stamped with a ring ball slip ring (523) at the position corresponding to the round hole (511). Each spring (521) is provided with a ball A (503) between it and the corresponding round hole (511). The diameter of the ball A (503) is larger than the diameter of the hole (511).

4. A cardiac pacemaker electrode lead signal adapter according to claim 1, characterized in that, The cathode wiring assembly (6) includes a mover insert ring (601), a support ring assembly (602), and a stator ring (603); the mover insert ring (601) includes a stainless steel sleeve (611), and the top of the stainless steel sleeve (611) is integrally formed with a positioning disc (612) that extends outward and has an annular design. The stator ring (603) and the ring support assembly (602) are both movably sleeved on the outside of the stainless steel sleeve (611), and the ring support assembly (602) is located between the stator ring (603) and the positioning plate (612).

5. A cardiac pacemaker electrode lead signal adapter according to claim 4, characterized in that, The ring assembly (602) includes two positioning rings (621) nested together. A plurality of balls C (622) are arranged circumferentially between the two positioning rings (621). The surfaces of the balls C (622) are in contact with the bottom surface of the positioning disk (612) and the top surface of the stator ring (603), respectively.

6. A cardiac pacemaker electrode lead signal adapter according to claim 4, characterized in that, The top of the positioning disk (612) has a number of balls B (604) distributed around the circumference of the stainless steel sleeve (611). The positioning disk (612) has an integrally formed annular groove corresponding to the positions of balls B (604) and balls C (622) to position balls B (604) and balls C (622). Both ball A (503) and ball C (622) are made of metal.

7. A cardiac pacemaker electrode lead signal adapter according to claim 4, characterized in that, The surface of the stainless steel sleeve (611) is integrally formed by stamping several V-shaped anti-disengagement springs (613) at equal intervals around the circumference towards the inside of the stainless steel sleeve (611).

8. A cardiac pacemaker electrode lead signal adapter according to claim 1, characterized in that, The sleeve (1) consists of three parts: a middle section tube (101), a front end tube (102), and a tail end tube (103). The middle section tube (101) and the front end tube (102) have an electrode insertion hole (112) in the middle. The top of the middle section tube (101) is integrally formed with an anode wiring mounting groove (111) designed in an annular shape for installing the anode wiring assembly (5). The bottom of the front end tube (102) is integrally formed with three positioning feet (121) corresponding to the gap between the three springs (521) in the anode wiring assembly (5). The tail tube (103) has an integrally formed cathode wiring mounting groove (131) for mounting the cathode wiring assembly (6) at its center. The top of the cathode wiring mounting groove (131) is connected to the electrode insertion hole (112). The middle part of the cathode wiring mounting groove (131) is provided with an annular clearance groove (132) corresponding to the position of the V-shaped anti-disengagement spring (613). The top of the cathode wiring mounting groove (131) has an integrally formed ring support groove (133) for mounting the stator ring (603) and the ring support assembly (602). The stator ring (603) is fixed at the bottom of the ring support groove (133). The bottom of the middle section tube (101) has an integrally formed ball groove (134) for the ball B (604) to roll.

9. A cardiac pacemaker electrode lead signal adapter according to claim 1, characterized in that, The clamp seat (2) is integrally formed on the end of the tail tube (103), and two clamping grooves (3) are integrally formed on the clamp seat (2). Two conductive plates (4) are fixed in the two clamping grooves (3), and anti-slip textures are provided on the two conductive plates (4). Two conductive strips are provided inside the sleeve (1). One end of the two conductive strips is electrically connected to the conductive fixing ring (502) and the stator ring (603) respectively, and the other end of the two conductive strips is electrically connected to the two conductive plates (4) respectively.

10. A cardiac pacemaker electrode lead signal adapter according to claim 8, characterized in that, The front end tube (102), the middle section tube (101) and the tail end tube (103) are bonded and fixed together to form a whole.

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