A switching device for pacing a guide wire in a TAVR operation

Abstract

The utility model belongs to the technical field of medical auxiliary instrument, provide a kind of TAVR in operation guide wire pacing with adapter, including the anode adapter terminal and body surface electrode patch of electric connection, and the cathode adapter terminal and guide wire crocodile clip of electric connection;Anode adapter terminal is provided with anode pin, cathode adapter terminal is provided with cathode pin, to be connected with temporary pacemaker by anode pin and cathode pin, to be connected with pacing guide wire system by body surface electrode patch and guide wire crocodile clip.The TAVR in operation guide wire pacing with adapter provided by the utility model solves the problem that there is currently lack of adapter specially used for connecting guide wire and temporary cardiac pacemaker, reduces the complexity and complexity of guide wire connection in guide wire pacing process, improves operation convenience, simultaneously avoids the problem that the conductive connection end is exposed caused by using long needle or needle head connection crocodile clip, to avoid short-circuit phenomenon, improve the stability and security of connection.

Description

Technical Field

[0001] This utility model belongs to the field of medical auxiliary device technology, and specifically relates to an adapter for guidewire pacing during TAVR, which is used to bridge the temporary pacemaker and pacing guidewire system during guidewire pacing in transcatheter aortic valve replacement (TAVR). Background Technology

[0002] Transcatheter aortic valve replacement (TAVR) is an important technique for treating severe aortic stenosis. However, during the procedure, damage to the conduction system may occur due to valve manipulation, balloon dilation, or stent deployment, leading to atrioventricular block (AVB) or bradycardia. Therefore, intraoperative temporary pacing is a crucial step to ensure patient safety.

[0003] Currently, temporary pacing mainly employs two methods: temporary pacing electrode pacing (temporary pacemaker placement via the jugular or femoral vein) and guidewire pacing (pacing using a left ventricular guidewire). The use and optimization of guidewire pacing technology has become a crucial step in simplifying TAVR procedures (minimalist TAVR). Compared to traditional temporary pacing electrode pacing, guidewire pacing technology, due to its shorter development history, lacks a dedicated adapter for connecting the guidewire to the temporary pacemaker. For example, CN216169392U provides an adapter specifically for connecting the active electrode lead to a temporary pacemaker, indicating its application in traditional temporary pacing electrode pacing. CN 221998651U provides an active electrode temporary pacing conversion line, also indicating its application in traditional temporary pacing electrode pacing. Traditional electrode pacing generally uses active electrode leads, whose structure and principle are significantly different from the guidewire used in guidewire pacing.

[0004] Furthermore, since there are currently no dedicated adapters for connecting guidewires and temporary pacemakers, medical staff typically use alligator clips with needles or long needles for connection. This involves fixing the needle or long needle to the anode and cathode output ports of the temporary pacemaker, then securing it with alligator clips. Simultaneously, the other end of the alligator clip connecting the cable to the anode output port is clamped to the subcutaneous tissue at the puncture site or to the periphery of the needle connected to the patient. However, this method is cumbersome and inconvenient, increasing the workload for medical staff. Moreover, the exposed areas of the needle or long needle and alligator clips at the conductive connection points make short circuits more likely, potentially causing malfunctions in the temporary pacemaker system, disrupting the procedure, and posing a significant safety hazard.

[0005] Therefore, it is necessary to design a dedicated adapter for guidewire pacing that can at least solve some of the above problems and defects. Summary of the Invention

[0006] To address the above-mentioned technical problems, this invention proposes an adapter for guidewire pacing during TAVR surgery. This solves the current lack of a dedicated adapter for connecting guidewires and temporary pacemakers, reducing the complexity and cumbersomeness of guidewire connection during intraoperative pacing, improving operational convenience, and avoiding the problem of exposed conductive connection ends caused by using long needles or needle tips to connect alligator clips, thereby preventing short circuits and improving connection stability and safety.

[0007] The technical solution of this utility model is: This utility model proposes an adapter for guidewire pacing during TAVR, including an anode adapter terminal and a body surface electrode patch electrically connected by an adapter cable, and a cathode adapter terminal and a guidewire alligator clip electrically connected by an adapter cable. The anode adapter terminal is provided with an anode pin, and the cathode adapter terminal is provided with a cathode pin, so as to connect to a temporary pacemaker through the anode pin and the cathode pin, and to the pacing guidewire system through a body surface electrode patch and a guidewire alligator clip.

[0008] Preferably, the anode adapter terminal is further provided with an anode insulating sleeve disposed on the anode pin terminal, and the cathode adapter terminal is further provided with a cathode insulating sleeve disposed on the cathode pin terminal.

[0009] Preferably, the anode insulating end sleeve is provided with a first annular protrusion arranged near the anode pin, and the cathode insulating end sleeve is provided with a second annular protrusion arranged near the cathode pin.

[0010] Preferably, the anode insulating end sleeve and the cathode insulating end sleeve are respectively provided with different color markings, and / or, the outer wall of the first annular protrusion is provided with an anode marking, and the outer wall of the second annular protrusion is provided with a cathode marking.

[0011] Preferably, the adapter cable includes two independent connecting cables to respectively realize the electrical connection between the anode adapter terminal and the body surface electrode patch, and between the cathode adapter terminal and the guide wire alligator clip; Alternatively, the adapter cable may have its ends branch into a "Y" shape, with one end branching to connect to the anode adapter terminal and the cathode adapter terminal respectively, and the other end branching to connect to the body electrode patch and the guide wire alligator clip respectively.

[0012] This utility model has the following advantages and effects compared with the prior art: (1) An anode adapter terminal with an anode pin and a cathode adapter terminal with a cathode pin are used to facilitate the connection of the anode pin and cathode pin to the anode output port and cathode output port of the temporary pacemaker, thereby improving the ease of use and the stability of the connection. (2) The body surface electrode patch is electrically connected to the anode adapter terminal. It can be connected to the patient through the body surface electrode patch without the need to clamp the alligator clip to the subcutaneous tissue of the puncture site or the periphery of the long needle or needle connected to the patient, which improves the convenience of operation and the stability of connection. (3) An anode insulating sleeve is installed at the anode pin terminal and a cathode insulating sleeve is installed at the cathode pin terminal to cover the terminals of the anode pin and the cathode pin, so that the conductive terminals are not exposed, thereby avoiding short circuits and eliminating potential safety hazards. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the adapter for guidewire pacing during TAVR in Embodiment 1 of this utility model; Figure 2 for Figure 1 Enlarged structural diagram at position A in the middle; Figure 3 This is a connection diagram of the guidewire pacing adapter during TAVR in the usage state in Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the adapter device for guidewire pacing during TAVR in Embodiment 2 of this utility model.

[0014] Reference numerals: 1. Anode adapter terminal; 11. Anode pin; 12. Anode insulating sleeve; 121. First annular protrusion; 122. Anode mark; 2. Cathode adapter terminal; 21. Cathode pin; 22. Cathode insulating sleeve; 221. Second annular protrusion; 222. Cathode mark; 3. Surface electrode patch; 4. Alligator clip for guide wire; 5. Adapter cable; 6. Temporary pacemaker; 7. Cable connector; 71. Plug; 72. Anode output port; 73. Cathode output port. Detailed Implementation

[0015] To enable those skilled in the art to better understand this utility model, it will now be further described in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of this utility model.

[0016] Example 1: like Figures 1-3As shown, this utility model provides an adapter for guidewire pacing during TAVR, specifically used for bridging the temporary pacemaker and pacing guidewire system during guidewire pacing in transcatheter aortic valve replacement (TAVR). It includes an anode adapter terminal 1 and a body surface electrode patch 3 electrically connected via an adapter cable 5, and a cathode adapter terminal 2 and a guidewire alligator clip 4 electrically connected via an adapter cable 5. During use, the anode adapter terminal 1 and the cathode adapter terminal 2 are respectively connected to the temporary pacemaker 6, the body surface electrode patch 3 is attached to the patient's body surface to achieve connection with the patient, and the guidewire alligator clip 4 is fixedly clamped to the end of the guidewire.

[0017] refer to Figure 3 As shown, the temporary pacemaker 6 includes a cable connector 7 connected thereto. The cable connector 7 is provided with a plug 71 adapted to the socket of the temporary pacemaker 6, as well as an anode output port 72 and a cathode output port 73. It should be noted that the temporary pacemaker 6 and the cable connector 7 are mature existing technologies, and their specific structures and principles will not be described in detail here. For ease of explanation in this embodiment, the temporary pacemaker 6 specifically adopts the Medtronic 53401 single-chamber temporary pacemaker (of course, other models such as the 5348 model can also be used). The corresponding cable connector 7 is 5492AL or 5492VL. The guidewire (not shown in the figure) can be a 0.035-inch diameter Lunderquist guidewire, or any other commercially available guidewire (such as Safari and Amplatz ultra-hard guidewires, or Confida guidewires, etc.).

[0018] like Figure 2 As shown, the anode adapter terminal 1 includes an anode pin 11 adapted to the anode output port 72, and an anode insulating sleeve 12 disposed at the terminal of the anode pin 11. The cathode adapter terminal 2 includes a cathode pin 21 adapted to the cathode output port 73, and a cathode insulating sleeve 22 disposed at the terminal of the cathode pin 21. During use, simply hold the anode insulating sleeve 12 and the cathode insulating sleeve 22 to insert the anode pin 11 into the anode output port 72 and the cathode pin 21 into the cathode output port 73. This effectively avoids direct contact between the hands or gloves of medical personnel and the exposed anode pin 11 and cathode pin 21.

[0019] Further reference Figure 2 As shown, the anode insulating end sleeve 12 is provided with a first annular protrusion 121 arranged near the anode pin 11, and the cathode insulating end sleeve 22 is provided with a second annular protrusion 221 arranged near the cathode pin 21, so that medical personnel can insert or pull out the anode pin 11 and the cathode pin 21 by grasping the first annular protrusion 121 and the second annular protrusion 221.

[0020] Optionally, in some embodiments, the anode insulating sleeve 12 and the cathode insulating sleeve 22 are respectively provided with different color markings, such as the anode insulating sleeve 12 being red and the cathode insulating sleeve 22 being black.

[0021] Furthermore, the outer wall of the first annular protrusion 121 is provided with an anode mark 122, and the outer wall of the second annular protrusion 221 is provided with a cathode mark 222, so that medical personnel can connect the anode pin 11 with the anode mark 122 to the anode output port 72 of the temporary pacemaker 6, and the cathode pin 21 with the cathode mark 222 to the cathode output port 73 of the temporary pacemaker 6.

[0022] like Figure 1 As shown, the adapter cable 5 specifically includes two independent connecting cables to achieve independent electrical connections between the anode adapter terminal 1 and the body surface electrode patch 3, and between the cathode adapter terminal 2 and the wire alligator clip 4.

[0023] Example 2: In embodiment 2 of this utility model, using Figure 4 The following description will be provided. Furthermore, descriptions of parts that are no different from those in Embodiment 1 will be omitted, and the same reference numerals will be used instead.

[0024] like Figure 4 As shown, the adapter device for guidewire pacing during TAVR involved in this utility model has an adapter cable 5 with its distal ends branching into "Y" shapes. One end of the branch is connected to the anode adapter terminal 1 and the cathode adapter terminal 2, respectively, and the other end is connected to the body surface electrode patch 3 and the guidewire alligator clip 4, respectively. That is, both ends of the adapter cable 5 are provided with "Y" shaped connecting cables. At the same time, the anode adapter terminal 1 is electrically connected to the body surface electrode patch 3, and the cathode adapter terminal 2 is electrically connected to the guidewire alligator clip 4. Since the Y-shaped connecting cable is a mature existing technology, its specific structure and principle will not be described here.

[0025] In summary, the adapter for guidewire pacing during TAVR provided by this utility model solves the problem of the lack of a dedicated adapter for connecting guidewires and temporary pacemakers. It reduces the complexity and cumbersomeness of guidewire connection during intraoperative guidewire pacing, improves operational convenience, and avoids the problem of exposed conductive connection ends caused by using long needles or needle tips to connect alligator clips, thereby avoiding short circuits and improving connection stability and safety.

[0026] The above are merely preferred embodiments of the present utility model and do not limit the patent scope of the present utility model. All equivalent changes and modifications made within the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A converter for guidewire pacing during TAVR, characterized in that: It includes an anode adapter terminal (1) and a body surface electrode patch (3) electrically connected via an adapter cable (5), and a cathode adapter terminal (2) and a wire alligator clip (4) electrically connected via an adapter cable (5). The anode adapter terminal (1) is provided with an anode pin (11), and the cathode adapter terminal (2) is provided with a cathode pin (21) to be connected to a temporary pacemaker through the anode pin (11) and the cathode pin (21), and to the pacing guidewire system through the body surface electrode patch (3) and the guidewire alligator clip (4).

2. The adapter for guidewire pacing during TAVR as described in claim 1, characterized in that: The anode adapter terminal (1) is also provided with an anode insulating sleeve (12) disposed at the terminal of the anode pin (11), and the cathode adapter terminal (2) is also provided with a cathode insulating sleeve (22) disposed at the terminal of the cathode pin (21).

3. The adapter for guidewire pacing during TAVR as described in claim 2, characterized in that: The anode insulating end sleeve (12) is provided with a first annular protrusion (121) arranged near the anode pin (11), and the cathode insulating end sleeve (22) is provided with a second annular protrusion (221) arranged near the cathode pin (21).

4. The adapter for guidewire pacing during TAVR as described in claim 3, characterized in that: The anode insulating end sleeve (12) and the cathode insulating end sleeve (22) are respectively provided with different color markings; And / or, the outer wall of the first annular protrusion (121) is provided with an anode mark (122), and the outer wall of the second annular protrusion (221) is provided with a cathode mark (222).

5. The adapter for guidewire pacing during TAVR as described in claim 1, characterized in that: The adapter cable (5) includes two independent connecting cables to realize the electrical connection between the anode adapter terminal (1) and the body surface electrode patch (3), and the cathode adapter terminal (2) and the guide wire alligator clip (4), respectively. Alternatively, the adapter cable (5) is forked at both ends into a "Y" shape, with one end forked and connected to the anode adapter terminal (1) and the cathode adapter terminal (2) respectively, and the other end forked and connected to the body surface electrode patch (3) and the guide wire alligator clip (4) respectively.

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