Switching device for connecting pacemaker wire and pacing test wire

Abstract

The utility model discloses a switching device for connecting a pacemaker lead and a pacing test line. The switching device comprises a bearing body and a rolling body, the bearing body is provided with an inner ring and an outer ring, the inner ring is used for connecting a connector of a pacemaker wire and a connector of a pacemaker pulse generator, and the outer ring is used for connecting an alligator clip of a pacemaker test line; and the rolling bodies are used for connecting and conducting the inner ring and the outer ring. According to the utility model, the inner ring is connected with the pacemaker wire joint, the outer ring is connected with the alligator clip of the pacemaker test wire, and the inner ring and the outer ring are connected and conducted through the rolling body, so that after the pacemaker wire is screwed in, the inner ring can adaptively rotate along with the pacemaker wire joint, and meanwhile, the alligator clip of the pacemaker test wire is always clamped on the outer ring; and the rolling body is communicated with the inner ring, so that the damage current and potential change in the process of screwing the joint of the pacemaker lead in the whole process can be monitored.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, concretely relates to a switching device for connecting pacemaker lead and pacing test line. BACKGROUND

[0002] In recent years, physiological pacing technology has been widely used in clinical, and continuous monitoring of injury current is important for determining left bundle branch pacemaker electrode implantation depth and identifying early myocardial perforation. In the process of pacemaker implantation surgery, sterilized pacing test line is needed to connect pacing lead and test equipment.

[0003] At present, pacing test line with alligator clips at both ends is often used to connect pacing lead and test equipment, and the alligator clips at one end of the pacing test line are clamped on the cathode of the pacing lead and the incised skin, and the alligator clips at the other end are clamped on the anode and cathode of the test equipment connecting line. The existing test equipment connected with the pacing test line with alligator clips can realize the transmission of injury current, but the pacing lead electrode is placed in the heart by screwing, so the pacing test line connected at the tail end of the pacing lead will be twisted and wound when the pacing lead is introduced, and the twisted pacing test line will affect the stability of the pacing lead during the operation, thereby affecting the operation process. Therefore, at present, after the lead is sent to the appropriate pacing position, the test line is removed before the pacing lead is screwed in, and then the test line is clamped again after part of the pacing is screwed in, and the changes of test potential, injury current, etc. are tested. If the test result is not satisfactory, the test line is removed again, and then screwed in again, and then the previous process is repeated to test again, which often needs to be repeated several times to send the pacing lead to the satisfactory depth, and the repeated operation will affect the continuous monitoring of the injury current and increase the complexity of the operation.

[0004] Therefore, the existing method of connecting the pacing lead connector with the alligator clips of the direct pacing test line has the problem that the pacing test line needs to be frequently disassembled and assembled during the test process, thereby affecting the continuous monitoring of the injury current. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a switching device for connecting pacemaker lead and pacing test line to solve the technical problem that the pacing test line needs to be frequently disassembled and assembled during the test process in the prior art, thereby affecting the continuous monitoring of the injury current.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] An adapter for connecting pacemaker leads and pacemaker test leads includes a bearing body having an inner ring and an outer ring, the inner ring being for connecting a connector for the pacemaker leads and a connector for the pacemaker pulse generator, and the outer ring being for connecting an alligator clip for the pacemaker test leads.

[0008] The inner ring and the outer ring are coaxially arranged and a rolling element is disposed between them, and the inner ring and the outer ring are in contact and connected through the rolling element;

[0009] When the pacemaker lead connector is screwed in, the inner ring rotates with the pacemaker lead connector. At the same time, the alligator clip of the pacemaker test lead is always clamped on the outer ring and connected to the inner ring through the rolling element, so as to monitor the damage current and potential changes during the entire process of screwing in the pacemaker lead connector.

[0010] In a preferred embodiment of this utility model, at least one metal spring is provided on the inner wall of the inner ring. The metal spring is used to press the connector of the pacemaker lead and / or the connector of the pacemaker pulse generator. The inner ring contacts and conducts the connector of the pacemaker lead and / or the connector of the pacemaker pulse generator through the metal spring and / or its inner wall.

[0011] In a preferred embodiment of this utility model, the metal spring is arranged along the axial direction of the inner ring, the two ends of the metal spring are welded to the inner wall of the inner ring, and the middle section of the metal spring is far away from the inner wall of the inner ring and forms a smooth curve transition with its end.

[0012] As a preferred embodiment of this utility model, a plurality of shallow grooves are provided on the outer wall of the outer ring, and the plurality of shallow grooves are equidistantly arranged around the outer peripheral wall of the outer ring.

[0013] In a preferred embodiment of this utility model, the rolling element includes a cage and balls. The balls are rotatably mounted inside the cage and are equidistantly distributed around the axis of the cage. The inner and outer sides of the balls are exposed outside the cage to contact and conduct the inner and outer rings, respectively.

[0014] In a preferred embodiment of this utility model, a plurality of double-headed brushes are provided on the inner end side and / or the outer end side of the retainer. The plurality of double-headed brushes are equidistantly distributed around the axis of the retainer, and the inner side of the double-headed brush is arc-shaped and slides in contact with the outer wall of the inner ring, and the outer side of the double-headed brush is arc-shaped and slides in contact with the inner wall of the outer ring, so as to conduct the inner ring and the outer ring.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This invention connects the pacemaker lead connector via an inner ring and the alligator clip for the pacemaker test lead via an outer ring. A rolling element connects the inner and outer rings. After the pacemaker lead is screwed in, the inner ring can rotate adaptively with the pacemaker lead connector. At the same time, the alligator clip for the pacemaker test lead is always clamped on the outer ring and connected to the inner ring via the rolling element, thereby monitoring the damage current and potential changes during the screwing process of the pacemaker lead connector. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the adapter for connecting pacemaker leads and pacemaker test leads is provided for an embodiment of this utility model;

[0019] Figure 2 A schematic diagram of the rolling element structure is provided for an embodiment of this utility model.

[0020] The labels in the diagram represent the following:

[0021] 1-Bearing body; 2-Rolling element;

[0022] 11-Inner ring; 12-Outer ring; 21-Cage; 22-Ball; 23-Dual-head brush;

[0023] 111 - Metal shrapnel; 121 - Shallow groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 As shown, this utility model provides an adapter for connecting pacemaker leads and pacemaker test leads, including a bearing body 1. The bearing body 1 has an inner ring 11 and an outer ring 12. The inner ring 11 is used to connect the pacemaker lead connector and the pacemaker pulse generator connector, and the outer ring 12 is used to connect the alligator clip for the pacemaker test lead.

[0026] The inner ring 11 and the outer ring 12 are coaxially arranged and a rolling element 2 is arranged between them, and the inner ring 11 and the outer ring 12 are in contact and connected through the rolling element 2.

[0027] When the pacemaker lead connector is screwed in, the inner ring 11 rotates with the pacemaker lead connector. At the same time, the alligator clip of the pacemaker test line is always clamped on the outer ring 12 and connected to the inner ring 11 through the rolling element 2, so as to monitor the damage current and potential changes during the screwing in of the pacemaker lead connector throughout the process.

[0028] In this embodiment, the pacemaker lead connector and the pacemaker pulse generator connector are connected through the inner ring 11 of the bearing body 1, and the alligator clip of the pacemaker test line is connected through the outer ring 12. The inner ring 11 and the outer ring 12 are connected through the rolling element 2. When the pacemaker lead connector is screwed in, the inner ring 11 can rotate with the pacemaker lead connector. At the same time, the alligator clip of the pacemaker test line is always held on the outer ring 12 and communicates with the inner ring 11 through the rolling element 2.

[0029] Compared to existing methods that directly connect the pacemaker lead connector and testing equipment via the alligator clip of the pacemaker test lead, this embodiment connects the pacemaker lead connector or the pacemaker pulse generator connector via the inner ring 11 of the bearing body 1, connects the alligator clip of the pacemaker test lead via the outer ring 12, and connects the inner ring 11 and the outer ring 12 via the rolling element 2. When the pacemaker lead connector is screwed in, the inner ring 11 can rotate with the pacemaker lead connector, while the alligator clip of the pacemaker test lead is always clamped on the outer ring 12 and connected to the inner ring 11 via the rolling element 2, thereby monitoring the damage current and potential changes during the screwing in of the pacemaker lead connector throughout the process.

[0030] In order to compress and secure the pacemaker lead connector and / or pacemaker pulse generator connector to the inner ring 11, the following preferred embodiments are proposed.

[0031] like Figure 1 As shown, at least one metal spring 111 is provided on the inner wall of the inner ring 11. The metal spring 111 is used to press the connector of the pacemaker lead and / or the connector of the pacemaker pulse generator. The inner ring 11 contacts and conducts the connector of the pacemaker lead and / or the connector of the pacemaker pulse generator through the metal spring 111 and / or its inner wall.

[0032] The metal spring 111 is arranged along the axial direction of the inner ring 11. The two ends of the metal spring 111 are welded to the inner wall of the inner ring 11, and the middle section of the metal spring 111 is far away from the inner wall of the inner ring 11 and forms a smooth curve transition with its end.

[0033] Specifically, after the pacemaker lead connector or the pacemaker pulse generator connector is inserted into the inner ring 11, the metal spring 111 can press the pacemaker lead connector or the pacemaker pulse generator connector into the inner ring 11.

[0034] To enable the alligator clips for the pacing test leads to be more easily and securely clamped onto the outer ring 12, the following preferred embodiments are proposed.

[0035] like Figure 1 As shown, a plurality of shallow grooves 121 are provided on the outer wall of the outer ring 12, and the plurality of shallow grooves 121 are equidistantly arranged around the outer peripheral wall of the outer ring 12.

[0036] Specifically, the alligator clip's jaws can partially engage within the shallow groove 121 when gripping, to prevent it from slipping off.

[0037] In order to enable the inner ring 11 to rotate adaptively when the pacemaker lead is screwed in, while keeping the outer ring 12 stationary, the following preferred embodiments are proposed.

[0038] like Figure 1 and 2 As shown, the rolling element 2 includes a cage 21 and balls 22. The balls 22 are rotatably mounted inside the cage 21 and are equidistantly distributed around the axis of the cage 21. The inner and outer sides of the balls 22 are exposed outside the cage 21 to contact the inner ring 11 and the outer ring 12 respectively.

[0039] Specifically, when the pacemaker lead is screwed in, it can drive the inner ring 11 and the ball 22 to rotate relative to each other, while the ball 22 and the outer ring 12 rotate relative to each other, thereby keeping the outer ring 12 stationary.

[0040] Since the contact area between the ball 22 and the inner ring 11 and the outer ring 12 is limited, the following preferred embodiments are proposed to improve the conductivity between the inner ring 11 and the outer ring 12.

[0041] like Figure 1 and 2 As shown, multiple double-headed brushes 23 are provided on the inner end side and / or outer end side of the retainer 21. The multiple double-headed brushes 23 are equidistantly distributed around the axis of the retainer 21. The inner side of the double-headed brushes 23 is arc-shaped and slides in contact with the outer wall of the inner ring 11. The outer side of the double-headed brushes 23 is arc-shaped and slides in contact with the inner wall of the outer ring 12, so as to conduct the inner ring 11 and the outer ring 12.

[0042] Specifically, the dual-headed brush 23 can further conduct the inner ring 11 and the outer ring 12 to maintain stable transmission of the test signal.

[0043] In this embodiment, the pacemaker lead connector is first inserted into the inner ring 11, and the pacemaker lead connector is pressed by the metal spring. Then, the pacemaker test line is clamped in the outer ring 12 by the alligator clip. Then, the pacemaker lead is screwed into the heart. At the same time, the inner ring 11 can rotate adaptively as the pacemaker lead is screwed in, while the outer ring remains stationary.

[0044] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. An adapter device for connecting a pacemaker lead and a pacing test wire, characterized in that, The application relates to a switching device for connecting a pacemaker lead and a pacemaker test lead, comprising a bearing body (1) having an inner ring (11) for connecting a joint of a pacemaker lead and a joint of a pacemaker pulse generator and an outer ring (12) for connecting a crocodile clip of a pacemaker test lead; wherein the inner ring (11) and the outer ring (12) are coaxially arranged and a rolling body (2) is arranged therebetween, and the inner ring (11) and the outer ring (12) are in contact through the rolling body (2); when the joint of the pacemaker lead is screwed in, the inner ring (11) rotates with the joint of the pacemaker lead, at the same time, the crocodile clip of the pacemaker test lead is always clamped on the outer ring (12) and is in contact with the inner ring (11) through the rolling body (2), so that the damage current and potential change in the process of screwing in the joint of the pacemaker lead are monitored.

2. The switching device for connecting a pacemaker lead and a pacemaker test lead according to claim 1, wherein at least one metal spring (111) is arranged on the inner wall of the inner ring (11), the metal spring (111) is used for pressing the joint of the pacemaker lead and / or the joint of the pacemaker pulse generator, and the inner ring (11) is in contact with the joint of the pacemaker lead and / or the joint of the pacemaker pulse generator through the metal spring (111) and / or the inner wall thereof.

3. The switching device for connecting a pacemaker lead and a pacemaker test lead according to claim 2, wherein the metal spring (111) is arranged along the axial direction of the inner ring (11), both ends of the metal spring (111) are welded on the inner wall of the inner ring (11), and the middle section of the metal spring (111) is away from the inner wall of the inner ring (11) and forms a curve smooth transition with the end portions.

4. The switching device for connecting a pacemaker lead and a pacemaker test lead according to claim 3, wherein a plurality of shallow grooves (121) are arranged on the outer wall of the outer ring (12), and the plurality of shallow grooves (121) are equidistantly arranged around the outer peripheral wall of the outer ring (12).

5. The switching device for connecting a pacemaker lead and a pacemaker test lead according to claim 1, wherein the rolling body (2) comprises a retainer (21) and a plurality of rolling balls (22), the rolling balls (22) are rotatably arranged in the retainer (21) and are equidistantly distributed around the axis of the retainer (21), and the inner and outer sides of the rolling balls (22) are exposed outside the retainer (21) to contact and conduct the inner ring (11) and the outer ring (12) respectively.

6. The switching device for connecting a pacemaker lead and a pacemaker test lead according to claim 5, wherein ​ ​ ​ ​ A plurality of double-head brushes (23) are arranged on the inner end side and / or the outer end side of the holder (21), the plurality of double-head brushes (23) are equidistantly distributed around the axis of the holder (21), the inner side of the double-head brush (23) is arc-shaped and in sliding contact with the outer wall of the inner ring (11), and the outer side of the double-head brush (23) is arc-shaped and in sliding contact with the inner wall of the outer ring (12), so as to conduct the inner ring (11) and the outer ring (12).

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