Implantable cardiac pacemaker electrode lead

Abstract

The utility model relates to the technical field of electrode leads, in particular to an implantable cardiac pacemaker electrode lead. The implantable cardiac pacemaker electrode lead comprises a catheter, a catheter separation layer which divides the interior of the catheter into two cavities is arranged in the catheter, a first spiral is arranged in one cavity, a second spiral is arranged in the other cavity, a first insulating tube is arranged on the outer side of the first spiral, and a second insulating tube is arranged on the outer side of the second spiral. One end of the screw I is welded with the connecting ring I, the other end of the screw I is welded with the cathode, one end of the screw II is welded with the connecting ring II, the other end of the screw II is welded with the anode, the welding part of one end of the screw I and the connecting ring I is provided with a sealing ring I, the welding part of the other end of the screw I and the cathode is provided with barbs, and the welding part of one end of the screw II and the connecting ring II is provided with a sealing ring II. The first connecting ring, the second connecting ring, the cathode and the anode of the implantable cardiac pacemaker electrode wire are not changed, the catheter structure and the spiral structure are changed, the catheter separation layer is additionally arranged in the middle of the catheter, the first spiral and the second spiral can be effectively separated, and the safety and stability performance is improved.

Description

Technical Field

[0001] The utility model relates to an electrode lead, in particular to an implantable cardiac pacemaker electrode lead. Background Art

[0002] Cardiac pacemaker surgery, also known as cardiac pacemaker implantation, refers to a treatment method in which a cardiac pacemaker is implanted subcutaneously. The pacemaker generates pulsed current of a specific frequency, and through the electrode lead, it stimulates the heart to contract and drives the heart beat.

[0003] A cardiac pacemaker system is a complete cardiac pacing system, which includes a cardiac pacemaker, an electrode lead, and a programmer. The cardiac pacemaker completely or partially replaces the electrical excitation and conduction of the heart, mainly for severe bradyarrhythmia, etc., enabling patients to live a normal life. This technology belongs to minimally invasive surgery, with small trauma, little pain, and high safety, and the treatment effect is indeed reliable. Clinically, cardiac pacemakers are widely used in various arrhythmias, atrioventricular block, sick sinus syndrome, etc., and can effectively reduce arrhythmias.

[0004] In the prior art, connecting ring one is connected to the cathode through inner helix one, connecting ring two is connected to the anode through outer helix, and there is an insulating tube between the inner helix and the outer helix. There is no catheter separation layer in the middle of the catheter. The overall hardness of the electrode is relatively high, the toughness of the electrode is poor, and the comfort of the patient is poor. And there is only one insulating tube between the inner helix and the outer helix. When the insulating tube is damaged, the cathode and the anode form a short circuit, affecting the treatment and thus failing to achieve the expected purpose, and the safety performance is relatively low. Summary of the Utility Model

[0005] The utility model aims to solve the above defects and provides an implantable cardiac pacemaker electrode lead.

[0006] To overcome the defects in the background art, the technical solution adopted by the utility model to solve its technical problems is: this implantable cardiac pacemaker electrode lead includes a catheter, and a catheter separation layer is provided inside the catheter to divide the inside of the catheter into two chambers. One chamber is provided with helix one, and the other chamber is provided with helix two. An insulating tube one is provided outside helix one, and an insulating tube two is provided outside helix two. One end of helix one is welded to connecting ring one, and the other end is welded to the cathode. One end of helix two is welded to connecting ring two, and the other end is welded to the anode. A sealing ring one is provided at the welding position of one end of helix one and connecting ring one, barbs are provided at the welding position of the other end of helix one and the cathode, and a sealing ring two is provided at the welding position of one end of helix two and connecting ring two.

[0007] According to another embodiment of the utility model, it further includes that helix one and helix two are synchronously wound from guide wires, and the materials are not limited to platinum-iridium alloy and nickel-cobalt alloy.

[0008] According to another embodiment of the present utility model, it further includes that the material of the catheter is polyurethane.

[0009] According to another embodiment of the present utility model, it further includes that the materials of the anode and the cathode are platinum iridium alloy PtIr10.

[0010] According to another embodiment of the present utility model, it further includes that the materials of the first connecting ring and the second connecting ring are nickel cobalt alloy.

[0011] The beneficial effects of the present utility model are as follows: For this implantable cardiac pacemaker electrode lead, the first connecting ring, the second connecting ring, the cathode and the anode remain unchanged, while the catheter structure and the spiral structure are changed. A catheter separation layer is added in the middle of the catheter, which can effectively separate the first helix and the second helix, improving the safety and stability performance. The inner helix no longer passes through the inside of the outer helix. The first helix and the second helix pass through the two side channels of the catheter respectively, and there are independent insulating tubes outside the first helix and the second helix, enhancing the safety performance. The overall hardness of this structure electrode is reduced, and the toughness of the electrode is improved. After being implanted into the body, the comfort of the patient is increased. Description of the Drawings

[0012] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0013] Figure 1 is the structural schematic diagram of the present utility model;

[0014] Figure 2 is the structural schematic diagram inside the catheter;

[0015] Wherein: 1. Catheter, 2. Catheter separation layer, 3. First helix, 4. Second helix, 5. Second sealing ring, 6. First insulating tube, 7. Second insulating tube, 8. First connecting ring, 9. Cathode, 10. Second connecting ring, 11. Anode, 12. First sealing ring, 13. Barbs. Detailed Embodiment

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. For the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Such as Figure 1 、 2As shown in the figure, the figure includes a catheter 1. Inside the catheter 1, there is a catheter separation layer 2 that divides the interior of the catheter 1 into two chambers. In one chamber, there is a first helix 3, and in the other chamber, there is a second helix 4. Outside the first helix 3, there is an insulating tube 6, and outside the second helix 4, there is an insulating tube 7. One end of the first helix 3 is welded to a first connecting ring 8, and the other end is welded to a cathode 9. One end of the second helix 4 is welded to a second connecting ring 10, and the other end is welded to an anode 11. At the welding point where one end of the first helix 3 is welded to the first connecting ring 8, there is a first sealing ring 12. At the welding point where the other end of the first helix 3 is welded to the cathode 9, there are barbs 13. At the welding point where one end of the second helix 4 is welded to the second connecting ring 10, there is a second sealing ring 14. For this kind of electrode lead wire, the first connecting ring and the second connecting ring are connected to a cardiac pacemaker; the anode and the cathode are in contact with the human body. The first connecting ring is connected to the cathode through the first helix, and the second connecting ring is connected to the anode through the second helix. There is a catheter separation layer in the middle of the catheter, and there are insulating tubes outside the first helix and the second helix respectively.

[0018] Adding a catheter separation layer in the middle of the catheter can effectively separate the first helix and the second helix, improving the safety and stability performance.

[0019] The first helix 3 and the second helix 4 are wound synchronously by guide wires, and the materials are not limited to platinum-iridium alloy and nickel-cobalt alloy. The inner channel of the first helix can be used to insert a guide wire during the operation to assist the operation. The channel at the connecting ring end is open, and the channel at the cathode end is closed. The inner helix no longer passes through the inside of the outer helix. The first helix and the second helix pass through the two side channels of the catheter respectively, and there are independent insulating tubes outside the first helix and the second helix, enhancing the safety performance. The overall hardness of this structure of the electrode is reduced, and the toughness of the electrode is improved. After being implanted into the body, the comfort of the patient is increased.

[0020] The material of the catheter 1 is polyurethane. The materials of the anode 11 and the cathode 9 are platinum-iridium alloy PtIr10.

[0021] The materials of the first connecting ring 8 and the second connecting ring 10 are nickel-cobalt alloy. The connecting ring side of the electrode lead wire is molded; the implanted end (cathode side) is injection molded, and the injection molding material is polyurethane.

[0022] The stimulation signal is sent out by the cardiac pacemaker and passes through the electrode lead wire, successively passing through the second connecting ring, the second helix, the anode and then transmitted into the body to achieve the treatment purpose. This kind of electrode lead wire has a simple structure, is easy to use, has good insulation performance, high safety performance, good electrode toughness, and better comfort for the patient.

[0023] As described above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An implantable cardiac pacemaker electrode lead, comprising a catheter (1), characterized in that: The conduit (1) is provided with a conduit partition layer (2) for dividing the interior of the conduit (1) into two chambers. A spiral (3) is provided in one chamber and a spiral (4) is provided in the other chamber. An insulating tube (6) is provided on the outer side of the spiral (3), and an insulating tube (7) is provided on the outer side of the spiral (4). One end of the spiral (3) is welded to a connecting ring (8) and the other end is welded to a cathode (9). One end of the spiral (4) is welded to a connecting ring (10) and the other end is welded to an anode (11). A sealing ring (12) is provided at a welding point between one end of the spiral (3) and the connecting ring (8), a barb (13) is provided at a welding point between the other end of the spiral (3) and the cathode (9), and a sealing ring (14) is provided at a welding point between one end of the spiral (4) and the connecting ring (10).

2. An implantable cardiac pacemaker electrode lead as claimed in claim 1, characterized in that: The spiral one (3) and spiral two (4) are formed by synchronously winding a guide wire, and the material is not limited to platinum-iridium alloy and nickel-cobalt alloy.

3. An implantable cardiac pacemaker electrode lead as claimed in claim 1, characterized in that: The material of the catheter (1) is polyurethane.

4. An implantable cardiac pacemaker electrode lead as claimed in claim 1, characterized in that: The material of the anode (11) and the cathode (9) is a platinum-iridium alloy PtIr10.

5. The implantable cardiac pacemaker electrode lead according to claim 1, characterized in that: The material of the connecting ring 1 (8) and the connecting ring 2 (10) is nickel-cobalt alloy.

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