Heart pace-making device
By designing a cardiac pacing device, the first electrode is implanted under the skin or applied to the skin, while the second electrode is inserted into the heart for pacing. This solves the instability problem of traditional right ventricular pacing methods and improves both safety and cost-effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-03-27
AI Technical Summary
In existing aortic valve replacement surgery, traditional right ventricular pacing methods increase operation time and risk, and their conductivity is unstable, resulting in unstable pacing electrical circulation.
The cardiac pacing device includes a first electrode and a second electrode. An adapter is connected to the pacemaker via a first electrode wire and a second electrode wire to provide pulse current. The first electrode is implanted under the skin or applied to the skin, and the second electrode is inserted into the cardiac pacing device. The adapter can be reused to stabilize the electrical pulse cycle.
It improves the safety and stability of pacing, reduces resource consumption and usage costs, and enhances the stability of electrical pulse cycles.
Smart Images
Figure CN224039792U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of pacemaker technology, in particular to a cardiac pacing device. BACKGROUND
[0002] At present, aortic valve replacement (TAVR) is rapidly popularized and developed. During the operation, balloon pre-dilation, balloon post-dilation, and most of the valve release process should be carried out quickly to reduce the impact on the balloon, avoid the sliding of the balloon, and achieve the accuracy of valve positioning. In the early stage, a temporary pacing lead is usually placed into the right ventricle through a peripheral vein (such as the femoral vein, internal jugular vein, etc.) at home and abroad. Although this technology is very mature, it increases the operation time and X-ray perspective time, the risk of puncture site complications (bleeding, pseudoaneurysm and arteriovenous fistula formation), and right ventricular perforation.
[0003] Therefore, in order to avoid the above-mentioned disadvantages, in recent years, left ventricular guide wire (hardened guide wire) pacing technology has been used instead of traditional right ventricular pacing at home and abroad. For example, a thin needle is inserted into the subcutaneous tissue of the thigh or an ordinary guide wire is inserted into the intravenous, and a crocodile clip lead is connected as a grounding anode. The external part of the left ventricular hardened guide wire is connected to another crocodile clip as a cathode. The port of the crocodile clip and the subsequent lead is connected to an external temporary pacemaker. Due to the large number of operating table instruments and the large number of operators, and the high dependence of the operation on the stability of the pacemaker, the subcutaneous needle or intravenous guide wire, the hardened guide wire and the crocodile clip are connected, the anode has a small contact surface with the human body, which affects the electrical performance, and the subsequent connection with the crocodile clip has the risk of anode out of the body and electrode disconnection from the crocodile clip, which may cause unstable pacemaker electrical cycle, which may cause serious adverse consequences. Therefore, how to better ensure the safety and simplicity of pacing is an important research direction. CONTENT OF THE UTILITY MODEL
[0004] In order to solve the above technical problems, the present application provides a cardiac pacing device, which comprises: a first electrode part for embedding in subcutaneous tissue or attaching to the skin; a second electrode part, the polarity of the second electrode part being opposite to that of the first electrode part, for inserting into the heart to pace the heart; a first electrode lead, a first end of the first electrode lead being connected with the first electrode part; a second electrode lead, a first end of the second electrode lead being connected with the second electrode part; an adapter, the adapter having an input end and a first output end and a second output end, a second end of the first electrode lead being connected with the first output end of the adapter, and a second end of the second electrode lead being connected with the second output end of the adapter; a pacemaker, the input end of the adapter being connected with the pacemaker, the pacemaker providing pulse current to the first electrode part and the second electrode part through the adapter, the first electrode lead and the second electrode lead.
[0005] In some embodiments of the present application, the first electrode part comprises a conductive wire and a needle, preferably a bent needle; one end of the conductive wire is connected with the first end of the first electrode lead, and the other end is connected with the needle.
[0006] In some embodiments of the present application, the first electrode part comprises an electrode patch and a first connecting part, the electrode patch is used to be attached to the skin, one end of the first connecting part is fixed with the electrode patch, and the other end is detachably connected with the first end of the first electrode lead.
[0007] In some embodiments of the present application, the second electrode part comprises a pacing lead electrically connected with the second electrode lead.
[0008] In some embodiments of the present application, the first output end of the adapter is detachably connected with one of the second ends of the first electrode lead, and the second output end of the adapter is detachably connected with one of the second ends of the second electrode lead.
[0009] In some embodiments of the present application, the first output end of the adapter has a first connecting cavity, and the second end of the first electrode lead has a first connecting head; the second output end of the adapter has a second connecting cavity, and the second end of the second electrode lead has a second connecting head; the adapter comprises an adapter body, the first connecting cavity and the second connecting cavity are arranged on one side of the adapter body; a first limiting member is movably connected with the adapter body, and a part of the first limiting member is exposed outside the adapter body, so that the first limiting member can be moved into or out of the first connecting cavity; when the first connecting head is inserted into the first connecting cavity, the first limiting member limits the first connecting head; a second limiting member is movably connected with the adapter body, and a part of the second limiting member is exposed outside the adapter body, so that the second limiting member can be moved into or out of the second connecting cavity; when the second connecting head is inserted into the second connecting cavity, the second limiting member limits the second connecting head.
[0010] In some embodiments of the present application, the first output end of the adapter has a first connecting cavity, and the second end of the first electrode lead has a first connecting head; the second output end of the adapter has a second connecting cavity, and the second end of the second electrode lead has a second connecting head; the adapter comprises an adapter body, the first connecting cavity and the second connecting cavity are arranged on one side of the adapter body; a first limiting member is movably connected with the adapter body, and a part of the first limiting member is exposed outside the adapter body, so that the first limiting member can be moved into or out of the first connecting cavity; when the first connecting head is inserted into the first connecting cavity, the first limiting member limits the first connecting head; a second limiting member is movably connected with the adapter body, and a part of the second limiting member is exposed outside the adapter body, so that the second limiting member can be moved into or out of the second connecting cavity; when the second connecting head is inserted into the second connecting cavity, the second limiting member limits the second connecting head.
[0011] In some embodiments of the present application, the input end of the adapter has an anode terminal and a cathode terminal, the anode terminal is electrically connected with the first connecting cavity, and the cathode terminal is electrically connected with the second connecting cavity.
[0012] In some embodiments of the present application, the input end of the adapter is connected with the pacemaker through a transmission lead, the transmission lead is a multi-layer structure including a central anode lead, a first insulating sleeve, a cathode sleeve and a second insulating sleeve; wherein one end of the central anode lead is electrically connected with the anode terminal, and the other end is electrically connected with the pacemaker; the first insulating sleeve is sleeved on the periphery of the central anode lead, and is used for isolating the central anode lead and the cathode sleeve; the cathode sleeve is sleeved on the periphery of the first insulating sleeve, one end of the cathode sleeve is connected with the cathode terminal, and the other end is electrically connected with the pacemaker; the second insulating sleeve is sleeved on the periphery of the cathode sleeve.
[0013] In some embodiments of the present application, the first connecting head is in the shape of a cylinder or a bottle, or a gourd.
[0014] In some embodiments of the present application, the adapter body is made of transparent material.
[0015] The heart pacing device provided by the present application comprises a first electrode part, a second electrode part, a first electrode lead, a second electrode lead, an adapter and a pacemaker, the first electrode part is used for being embedded in subcutaneous tissue or being attached to skin, the second electrode part is opposite in polarity to the first electrode part and is used for being inserted into a heart to pace the heart, the first electrode part is connected with a first output end of the adapter through the first electrode lead, the second electrode part is connected with a second output end of the adapter through the second electrode lead, and the pacemaker is connected with an input end of the adapter, pulse current is provided to the first electrode part and the second electrode part through the adapter, the first electrode lead and the second electrode lead, so that the second electrode part can stimulate the heart to pace the heart, the first electrode part is not easy to be separated from the skin and can enhance the stability of electric pulse circulation, and the adapter and the pacemaker can be repeatedly used, thereby reducing resource consumption and use cost. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort based on these drawings.
[0017] Figure 1 is a whole schematic view of the heart pacing device of the present application;
[0018] Figure 2 is a schematic view of a first electrode part of the heart pacing device according to the present application;
[0019] Figure 3 is a schematic view of another first electrode part of the heart pacing device according to the present application;
[0020] Figure 4 is a sectional view of the adapter of the heart pacing device according to the present application;
[0021] Figure 5 is a sectional view of the transmission lead of the heart pacing device according to the present application. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other alternative embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0023] As shown in Figure 1 As an embodiment of the heart pacing device, the heart pacing device comprises a first electrode part 10, a second electrode part 20, a first electrode lead 30, a second electrode lead 40, an adapter 50 and a pacemaker 60, wherein the first electrode part 10 is used to be embedded in subcutaneous tissue or attached to the skin; the second electrode part 20 is opposite in polarity to the first electrode part 10 and is used to be inserted into the heart to pace the heart; the first end of the first electrode lead 30 is connected with the first electrode part 10; the first end of the second electrode lead 40 is connected with the second electrode part 20; the adapter 50 has an input end and a first output end and a second output end, the first output end of the adapter 50 is connected with the second end of the first electrode lead 30, and the second output end of the adapter 50 is connected with the second end of the second electrode lead 40; the pacemaker 60 is connected with the input end of the adapter 50, and provides pulse current to the first electrode part 10 and the second electrode part 20 through the adapter 50, the first electrode lead 30 and the second electrode lead 40.
[0024] In the embodiment, after the first electrode part 10 is embedded in subcutaneous tissue or attached to the skin and the second electrode part 20 is inserted into the heart, the pacemaker 60 sends out electric pulse to the first electrode part 10 and the second electrode part 20 through the adapter 50 and the first electrode lead 30 and the second electrode lead 40, so that the second electrode part 20 stimulates the heart to pace the heart.
[0025] In this embodiment, the first electrode portion 10 is fixed by embedding it in subcutaneous tissue or applying it to the skin, which reduces the risk of the first electrode portion 10 detaching from the skin and enhances the stability of the electrical pulse cycle. In this embodiment, the first electrode wire 30 and the second electrode wire 40 are connected by an adapter 50. On the one hand, this facilitates the operator in connecting the first electrode wire 30 and the second electrode wire 40. On the other hand, the first electrode wire 30 and the second electrode wire 40, together with the first electrode portion 10 and the second electrode portion 20, are for single use and can be easily replaced as a whole. The adapter 50 and the pacemaker 60 are reusable, which reduces resource consumption and lowers the cost of use.
[0026] Furthermore, in this embodiment, the first electrode portion 10 is fixed by embedding it into the subcutaneous tissue. For example... Figure 2 As shown, specifically, the first electrode portion 10 includes a conductive metal wire 11 and a needle body 12. One end of the conductive metal wire 11 is connected to the first end of the first electrode wire 30, and the other end is connected to the needle body 12. After the needle body 12 is inserted into the subcutaneous tissue, it is sutured multiple times around the subcutaneous tissue to fix the conductive metal wire 11 in the subcutaneous tissue. Then, the needle body 12 is passed through the subcutaneous tissue and removed from the end of the conductive metal wire 11, that is, only the conductive metal wire 11 is retained and embedded in the subcutaneous tissue. In this embodiment, the first electrode wire 30 can be composed of an insulating surface layer and a conductive metal wire 11, with the insulating surface layer covering the surface of the conductive metal wire 11. When the length of the conductive metal wire 11 in the first electrode portion 10 is short, the insulating surface layer on the surface of the first electrode wire 30 can be peeled off, and the exposed conductive metal wire 11 can be used as part of the first electrode portion 10.
[0027] In this embodiment, the insulating surface layer in the first electrode wire 30 may be an insulating varnish layer or an insulating plating layer.
[0028] Furthermore, in some embodiments, the first electrode portion 10 is fixed to the skin surface by means of an adhesive patch; such as Figure 3 As shown, specifically, the first electrode part 10 includes an electrode patch 13 and a first connecting part 14. The electrode patch 13 is used to be applied to the skin, and the shape of the electrode patch 13 can be a sheet, a cylinder, or the like. One end of the first connecting part 14 is fixed to the electrode patch 13, and the other end is detachably connected to the first end of the first electrode wire 30, for example, by plugging, snapping, or threading, so as to facilitate the replacement of different models or types of first electrode parts 10.
[0029] In the embodiment, the second electrode part 20 comprises a pacing lead electrically connected with the second electrode lead 40, the pacing lead is made of a stiff guide wire, the pacing lead enters the heart to pace the heart; preferably, the stiff guide wire (the pacing lead) comprises a soft part and a support part in the length direction, the soft part can be bent into a multi-turn structure after entering the heart; the support part is a straight line structure, used to strengthen and support the overall strength of the pacing lead; in some embodiments, the second electrode part 20 is integrally formed with the second electrode lead 40, made of a longer stiff guide wire; in some embodiments, the second electrode lead 40 is composed of a stiff guide wire and an insulating sleeve sleeved on the surface of the stiff guide wire.
[0030] As shown in Figure 4 In order to facilitate the connection and disassembly between the adapter 50 and the first electrode lead 30 and the second electrode lead 40, the first output end of the adapter 50 is detachably connected with the second end of the first electrode lead 30, and the second output end of the adapter 50 is detachably connected with the second end of the second electrode lead 40. Specifically, one of the first output end of the adapter 50 and the second end of the first electrode lead 30 has a first connecting head (not shown in the figure), and the other one has a first connecting cavity 511, so that the first connecting head can be inserted and fixed in the first connecting cavity 511; one of the second output end of the adapter 50 and the second end of the second electrode lead 40 has a second connecting head (not shown in the figure), and the other one has a second connecting cavity 512, so that the second connecting head can be inserted and fixed in the second connecting cavity 512. In some specific embodiments, the first output end of the adapter 50 has the first connecting cavity 511, and the second end of the first electrode lead 30 has the first connecting head; the second output end of the adapter 50 has the second connecting cavity 512, and the second end of the second electrode lead 40 has the second connecting head.
[0031] As shown in Figure 4As shown, in the present embodiment, the adapter 50 comprises an adapter body 51, a first limiting member 52 and a second limiting member 53, wherein the first connecting cavity 511 and the second connecting cavity 512 are arranged on one side of the adapter body 51; the first limiting member 52 is movably connected with the adapter body 51 and a part of the first limiting member 52 is exposed outside the adapter body 51, so that the first limiting member 52 can move into or out of the first connecting cavity 511; when the first connecting head is inserted into the first connecting cavity 511, the first limiting member 52 limits the first connecting head, preventing the first connecting head from separating from the first connecting cavity 511. For example, the first limiting member 52 is threadedly connected with the adapter body 51, and the first limiting member 52 can be rotated to move into or out of the first connecting cavity 511, limiting the first connecting head inserted into the first connecting cavity 511, for example, the end of the first limiting member 52 presses the first connecting head, or the first connecting head has a limiting hole, and the first limiting member 52 can be inserted into the limiting hole.
[0032] As shown, Figure 4 the second limiting member 53 is movably connected with the adapter body 51 and a part of the second limiting member 53 is exposed outside the adapter body 51, so that the second limiting member 53 can move into or out of the second connecting cavity 512; when the second connecting head is inserted into the second connecting cavity 512, the second limiting member 53 limits the second connecting head, preventing the second connecting head from separating from the second connecting cavity 512. For example, the second limiting member 53 is threadedly connected with the adapter body 51, and the second limiting member 53 can be rotated to move into or out of the second connecting cavity 512, limiting the second connecting head inserted into the second connecting cavity 512, for example, the end of the second limiting member 53 presses the second connecting head, or the second connecting head has a limiting hole, and the second limiting member 53 can be inserted into the limiting hole.
[0033] In other embodiments, other types of limiting structures (such as springs, damping members, clamping members, etc.) can be arranged in the first connecting cavity 511 and the second connecting cavity 512 to limit the first connecting head and the second connecting head, preventing the first connecting head and the second connecting head from separating from the first connecting cavity 511 and the second connecting cavity 512.
[0034] In some embodiments, the shapes of the first connecting head and the second connecting head are columnar, such as cylindrical or prismatic; in some embodiments, the shapes of the first connecting head and the second connecting head are bottle-shaped or gourd-shaped, and the adapter 50 further comprises an end cover movably connected with the adapter body 51, when the end cover is opened, the first connecting cavity 511 and the second connecting cavity 512 are exposed, and the first connecting head and the second connecting head can be correspondingly placed in the first connecting cavity 511 and the second connecting cavity 512. In other embodiments, the first connecting head and the second connecting head can also have other shapes. In some embodiments, the second end of the second electrode lead 40 can be directly inserted into the second connecting cavity 512 without arranging the second connecting head.
[0035] In the embodiment, in order to see whether the first connector and the second connector are limited, the material of the adapter body 51 is transparent, so as to facilitate observation.
[0036] Further, as shown in Figure 4 the input end of the adapter 50 has an anode terminal 513 and a cathode terminal 514, the anode terminal 513 is electrically connected with the first connecting cavity 511, and the cathode terminal 514 is electrically connected with the second connecting cavity 512. The first connecting cavity 511 is connected with the first electrode part 10 through the first electrode lead 30, and the second connecting cavity 512 is connected with the second electrode part 20 through the second electrode lead 40, that is, it is indicated that the first electrode part 10 is a positive electrode, and the second electrode part 20 is a negative electrode. In some other embodiments, the first connecting cavity 511 is connected with the second electrode part 20 through the second electrode lead 40, and the second connecting cavity 512 is connected with the first electrode part 10 through the first electrode lead 30, that is, it is indicated that the first electrode part 10 is a negative electrode, and the second electrode part 20 is a positive electrode.
[0037] Further, in combination with Figure 1 and Figure 5 In the embodiment, the input end of the adapter 50 is connected with the pacemaker 60 through the transmission lead 70, wherein the transmission lead 70 is a multi-layer structure, including a central anode lead 71, a first insulating sleeve 72, a cathode sleeve 73 and a second insulating sleeve 74; one end of the central anode lead 71 is electrically connected with the anode terminal 513, and the other end is electrically connected with the positive electrode of the pacemaker 60; the first insulating sleeve 72 is sleeved on the periphery of the central anode lead 71, and is used for isolating the central anode lead 71 and the cathode sleeve 73; the cathode sleeve 73 is sleeved on the periphery of the first insulating sleeve 72, one end of the cathode sleeve 73 is connected with the cathode terminal 514, and the other end is electrically connected with the negative electrode of the pacemaker 60; the second insulating sleeve 74 is sleeved on the periphery of the cathode sleeve 73, and protects the cathode sleeve 73.
[0038] Finally, it needs to be explained that if the application embodiments involve directional indications (such as up, down, left, right, front, back, …), the directional indications are only used to explain the relative position relationship, motion condition and the like between the components in a certain posture (as shown in the drawings), if the certain posture changes, the directional indications also change accordingly.
[0039] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor in the protection scope of the present application.
[0040] The above is only the implementation of the present application, and does not limit the patent scope of the present application, any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A cardiac pacing device, characterized by The utility model relates to a kind of pacing device, including: First electrode part, for embedding in subcutaneous tissue or sticking to skin; Second electrode part, the polarity of the second electrode part is opposite to the first electrode part, for inserting heart to heart pacing; First electrode lead wire, the first end of the first electrode lead wire is connected with the first electrode part; Second electrode lead wire, the first end of the second electrode lead wire is connected with the second electrode part; Adapter, the adapter has input end and first output end and second output end, the first output end of the adapter is connected with the second end of the first electrode lead wire, the second output end of the adapter is connected with the second end of the second electrode lead wire; Pacemaker, connected with the input end of the adapter, pulse current is provided to the first electrode part and second electrode part through the adapter, first electrode lead wire, second electrode lead wire.
2. The cardiac pacing device of claim 1, wherein, The first electrode part includes conductive wire and needle body, one end of the conductive wire is connected with the first end of the first electrode lead wire, and the other end is connected with the needle body.
3. The cardiac pacing device of claim 1, wherein, The first electrode part includes electrode patch and first connecting part, the electrode patch is used for sticking to skin, one end of the first connecting part is fixed with the electrode patch, and the other end is detachably connected with the first end of the first electrode lead wire.
4. The cardiac pacing device of claim 1, wherein, The second electrode part includes pacing lead wire electrically connected with the second electrode lead wire.
5. The cardiac pacing device according to any one of claims 1 to 4, characterized in that, The first output end of the adapter is detachably connected with the second end of the first electrode lead wire, and the second output end of the adapter is detachably connected with the second end of the second electrode lead wire.
6. The cardiac pacing device of claim 5, wherein, The first output end of the adapter has first connecting head in one of the second end of the first electrode lead wire, and the first output end of the adapter has first connecting cavity in the other of the second end of the first electrode lead wire, so that the first connecting head can be inserted and fixed in the first connecting cavity. The second output end of the adapter has second connecting head in one of the second end of the second electrode lead wire, and the second output end of the adapter has second connecting cavity in the other of the second end of the second electrode lead wire, so that the second connecting head can be inserted and fixed in the second connecting cavity.
7. The cardiac pacing device of claim 6, wherein, The first output end of the adapter has first connecting cavity, and the second end of the first electrode lead wire has first connecting head;The second output end of the adapter has second connecting cavity, and the second end of the second electrode lead wire has second connecting head; The adapter includes adapter body, and the first connecting cavity and the second connecting cavity are arranged on one side of the adapter body; First limiting part, movably connected with the adapter body, and part of the first limiting part is exposed outside the adapter body, so that the first limiting part can move into or out of the first connecting cavity;When the first connecting head is inserted into the first connecting cavity, the first limiting part limits the first connecting head; Second limiting part, movably connected with the adapter body, and part of the second limiting part is exposed outside the adapter body, so that the second limiting part can move into or out of the second connecting cavity;When the second connecting head is inserted into the second connecting cavity, the second limiting part limits the second connecting head.
8. The cardiac pacing device of claim 7, wherein, The input end of the adapter has an anode terminal and a cathode terminal, the anode terminal is electrically connected with the first connecting cavity, and the cathode terminal is electrically connected with the second connecting cavity.
9. The cardiac pacing device of claim 8, wherein, The input end of the adapter is connected with the pacemaker through a transmission lead, the transmission lead is a multi-layer structure, including a central anode lead, a first insulating sleeve, a cathode sleeve and a second insulating sleeve; One end of the central anode lead is electrically connected with the anode terminal, and the other end is electrically connected with the pacemaker; The first insulating sleeve is sleeved on the periphery of the central anode lead, and is used for isolating the central anode lead and the cathode sleeve; The cathode sleeve is sleeved on the periphery of the first insulating sleeve, one end of the cathode sleeve is connected with the cathode terminal, and the other end is electrically connected with the pacemaker; The second insulating sleeve is sleeved on the periphery of the cathode sleeve.
10. The cardiac pacing device of claim 7, wherein, The shape of the first connecting head is a columnar shape or a bottle shape, or a gourd shape.