Adapter for butt joint wire and cardiac pacemaker / CRTD

Abstract

The invention provides an adapter for resetting a pacemaker lead. The adapter is characterized by comprising an adapter shell; the pacemaker butting end is mounted on one side of the adapter shell; the wire interface end is arranged on the other side of the adapter shell; the magnetic clamping pieces are mounted in the adapter shell in pairs in a non-contact manner and are communicated with the wire interface end; the magnetic conductor is arranged in the adapter shell, is communicated with the butting end of the pacemaker, and is arranged between the oppositely arranged magnetic clamping pieces in a swinging manner; and the electromagnet is arranged in the adapter shell and is arranged in a range capable of influencing the swinging of the magnetic conductor. According to the device, switching between equipment such as a pacemaker and the lead is realized, so that the lead can be effectively prevented from being exposed, or the effect of a secondary operation can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to medical supplies, in particular to an adapter for connecting a lead wire and a cardiac pacemaker / CRTD. Background Art

[0002] For ordinary pacemakers, when the pacemaker electrode lead fails, pacemaker lead resetting surgery is required. Doctors will choose to embed the old pacemaker lead, and the embedded old pacemaker lead will form redundant pacemaker leads under the skin (such as Figure 1 As shown in the figure, on the one hand, it is actually a foreign body left in the patient's body, which may lead to potential infection risks; on the other hand, some patients may suffer from arrhythmias due to the loose embedding of the wire, which may cause one end of the old electrode to fall off into the heart cavity (such as Figure 2 On the other hand, the idle pacemaker wire cannot form a loop, so the patient can no longer undergo MRI examination.

[0003] For patients with chronic heart failure and complete left bundle branch block, CRTD needs to be implanted to restore the synchronization of the heart. In order to improve the response after CRTD surgery, in addition to the traditional atrial, left ventricular, and right ventricular electrodes, doctors can choose to implant left bundle branch pacing electrodes as an alternative. Currently, there are two treatment options for implanted left bundle branch electrodes according to different wiring methods:

[0004] (1) After implantation, the 3830 lead is first embedded to retain the function of the traditional CRTD. As the course of the disease progresses, when left ventricular electrode dislocation, poor pacing, or phrenic nerve stimulation occurs, a second surgery is performed to open the pacemaker wound, find the embedded left bundle branch pacemaker electrode, connect it to the left ventricular pacing electrode hole, and embed the original left ventricular electrode.

[0005] (2) After implantation, the pacing sensing hole of the right ventricle is connected, the pacing sensing of the original right ventricular defibrillator electrode is discarded, and the pacing sensing connection end of the right ventricular electrode is embedded, that is, LOT-CRTD. However, this solution requires giving up the automatic synchronization optimization function of the original CRTD. When the patient is treated with this solution for a period of time and finds that the effect is not good, a second surgery is required to readjust the electrode connection method to switch to the traditional CRTD.

[0006] In other words, no matter which scheme is used after CRTD implantation, there is a risk of secondary surgery. Summary of the invention

[0007] The present invention aims to overcome the above-mentioned defects and provide a lead-pacemaker adapter that does not require burying old leads and secondary surgery. One end of the adapter can be connected to a pacemaker / CRTD device, and the other end can be connected to two switchable pacemaker leads.

[0008] For patients who need to have their pacemaker leads replaced, the old leads can be connected to the pacemaker through an adapter, reducing the possibility of infection and entry into important tissues and organs. At the same time, the pacemaker's anti-nuclear magnetic function is retained.

[0009] For patients with CRTD implantation, the adapter corresponding to the above (1) can be connected to the left ventricular pacing hole, and the other end can be connected to the left ventricular electrode and the left bundle branch pacing electrode. When the left ventricular electrode fails, the left ventricular electrode can be turned off by external adjustment, and the left bundle branch electrode can be connected to switch the pathway, avoiding a second operation. The adapter corresponding to the above (2) can be connected to the right ventricular pacing sensing hole, and the other end can be connected to the left bundle branch pacing electrode and the right ventricular defibrillation sensing connection terminal. The conversion between traditional CRTD and LOT-CRTD can be achieved by adjusting and selecting the connection method in vitro.

[0010] The present invention provides an adapter, characterized in that: it comprises

[0011] Adapter housing;

[0012] The device docking end is installed on one side of the adapter housing;

[0013] A wire interface end is installed on the other side of the adapter housing;

[0014] Magnetic clamping parts are installed in pairs and non-contact inside the adapter housing and connected to the wire interface end;

[0015] A magnetic conductor is installed inside the adapter housing, communicated with the device docking end, and can be swingably arranged between the oppositely arranged magnetic clamping members;

[0016] The electromagnet is installed inside the adapter housing and is set within a range that can affect the swing of the magnetic conductor.

[0017] Furthermore, the present invention provides an adapter, which is also characterized in that:

[0018] The butt end of the above-mentioned device is connected with a conductor consisting of a cathode ring and an anode ring.

[0019] Furthermore, the present invention provides an adapter, which is also characterized in that:

[0020] The above-mentioned wire interface end comprises a first wire interface and a second wire interface which are independent of each other;

[0021] The magnetic clamp comprises a first magnetic conductor and a second magnetic conductor which are independent of each other;

[0022] The first wire interface is connected to the first magnetic conductor;

[0023] The second wire interface is connected to the second magnetic conductor.

[0024] Furthermore, the present invention provides an adapter, which is also characterized in that:

[0025] The magnetic conductor is connected to the equipment docking end through an elastic holder conductor.

[0026] Furthermore, the present invention provides an adapter, which is also characterized in that:

[0027] The two ends of the electromagnet are respectively connected to the equipment docking ends.

[0028] Furthermore, the present invention provides an adapter, which is also characterized in that:

[0029] The two ends of the electromagnet are arranged with opposite polarities.

[0030] Furthermore, the present invention provides an adapter, which is also characterized in that:

[0031] The two ends of the electromagnet are respectively provided with magnetic clamping parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 , embedding old pacemaker lead images;

[0033] Figure 2 , the image of one end of the old electrode falling off into the heart cavity due to the loose embedding of the wire;

[0034] Figure 3 , a schematic diagram of the installation structure of an adapter for connecting a pacemaker / CTRD and a lead provided in this embodiment;

[0035] Figure 4 , a schematic diagram of the structure of an adapter for connecting a pacemaker / CTRD and a lead provided in this embodiment; DETAILED DESCRIPTION

[0036] The present invention is capable of various modifications and various embodiments, and therefore specific embodiments are illustrated and described in the accompanying drawings. However, this is not intended to limit the present invention to specific implementations, but should be understood to include all modifications, equivalents, and even substitutes that fall within the concept and technical scope of the present invention.

[0037] like Figure 3 As shown, this embodiment provides an adapter, which is installed between the lead and the pacemaker / CRTD (i.e., the position indicated by the arrow in the figure), such as Figure 4 As shown, the specific structure of the adapter is as follows, which includes:

[0038] The adapter housing 16 is made of insulating material;

[0039] The device docking terminal 17 is connected to the pacemaker through a conventional pacemaker lead 10 (i.e., a lead consisting of a cathode ring 12 and an anode ring 11 arranged at intervals, based on which the pacemaker can be adjusted in vitro by a programmer), and is installed on one side of the outside of the adapter housing;

[0040] The wire interface end is installed on the other side of the adapter housing, and includes a first wire interface 13 and a second wire interface 14 that are independent of each other;

[0041] The magnetic clamping parts 15 are installed in pairs and non-contactly inside the adapter housing, and are connected to the wire interface end, that is, the magnetic clamping parts include a first magnetic conductor 15-1 and a second magnetic conductor 15-2 that are independent of each other; the first wire interface 13 is connected to the first magnetic conductor 15-1, and the second wire interface 14 is connected to the second magnetic conductor 15-2.

[0042] The magnetic conductor 22 is installed inside the adapter housing, connected to the device docking end through the elastic holder conductor 21, and can be swingably arranged between the oppositely arranged magnetic clamps;

[0043] The electromagnet 32 ​​has two NS poles, on which a coil 33 is wound, and is installed inside the adapter housing and is set within a range that can affect the swing of the magnetic conductor. The two ends 31 of the coil are respectively connected to the device docking ends.

[0044] The specific usage is as follows:

[0045] The adapter mentioned in this embodiment can realize two switching modes, in vivo and in vitro, when in its working state.

[0046] Regarding the in vivo mode, it generally refers to the situation where a traditional pacemaker needs to be replaced. After detection, the old wire cannot be used any more and needs to be embedded. In this scenario, if the adapter of this embodiment is used, the discarded wire can be treated without exposure, that is, the discarded wire is inserted into the 13th or 14th end, and then the new wire is inserted into the 14th or 13th end.

[0047] Regarding the in vitro model, it generally refers to the use of the adapter at the beginning of the CTRD installation (i.e., Figure 3 The 13 and 14 terminals are pre-installed with wires.

[0048] According to the patient's initial installation results, when using Option 1, the specific usage is as follows:

[0049] S1. After the installation is completed, in the initial state, wires are pre-installed in terminals 13 and 14, and the magnetic conductor is attached to one of the pathways (i.e., the end of the wire that is expected to be used at the beginning of the operation) due to elasticity, and the pacemaker emits discharge pulses through the pacing wire connected to the pathway;

[0050] S2. After using one end for a period of time, according to medical needs, when the state needs to be changed, that is, to use another path of the wire, at this time, through the traditional program controller, based on the adjustment of the positive and negative poles, the magnetic field is changed, so that the magnetic conductor is close to the other path, and the wire switching is completed without exposing the waste end. Of course, the above-mentioned magnetic field change can also be carried out by other equipment that can apply magnetic field outside the body.

[0051] According to the patient's initial installation results, when using Option 2, the specific usage is as follows:

[0052] S1. After the installation is completed, in the initial state, wires are pre-installed in terminals 13 and 14, wherein one wire corresponds to the CRTD mode and the other wire corresponds to the LOT-CRTD mode. A magnetic conductor is attached to a path of the LOT-CRTD mode due to elasticity, and the pacemaker generates discharge pulses through the pacing wire connected to the path;

[0053] S2. After a period of use, according to medical needs, when switching to the CRTD mode, the traditional programmer adjusts the positive and negative poles to achieve the change of the magnetic field, so that the magnetic conductor is close to another path, and the wire is switched. Of course, the above-mentioned magnetic field change can also be carried out by other devices that can apply magnetic fields outside the body.

[0054] Although the above description is centered on the embodiment, it is only an example and does not limit the present invention. It is clear to those skilled in the art that various modifications and applications not illustrated above can be made within the scope of the essential characteristics of the present embodiment. For example, each component specifically shown in the embodiment can be implemented after being modified. Moreover, various differences related to such modifications and applications should be interpreted as being included in the scope of the present invention as defined in the attached claims.

Claims

1. An adapter for connecting a lead wire and a pacemaker / CRTD, characterized in that: An adapter housing is included; The device docking end is installed on one side of the adapter housing; A wire interface end is installed on the other side of the adapter housing; The magnetic clamps are installed in pairs and non-contact inside the adapter housing, connected to the wire interface end; the magnetic conductor is installed inside the adapter housing, connected to the device docking end, and can be swingably arranged between the magnetic clamps arranged oppositely; The electromagnet is installed inside the adapter housing and is set within a range that can affect the swing of the magnetic conductor.

2. An adapter for resetting a pacemaker lead as claimed in claim 1, characterized in that: The butt end of the device is connected with a conductor consisting of a cathode ring and an anode ring.

3. An adapter for resetting a pacemaker lead as claimed in claim 1, characterized in that: The wire interface end comprises a first wire interface and a second wire interface which are independent of each other; The magnetic clamp comprises a first magnetic conductor and a second magnetic conductor that are independent of each other; The first wire interface is connected to the first magnetic conductor; The second wire interface is connected to the second magnetic conductor.

4. An adapter for resetting a pacemaker lead as claimed in claim 1, characterized in that: The magnetic conductor is connected to the equipment docking end through an elastic holder conductor.

5. An adapter for resetting a pacemaker lead as claimed in claim 1, characterized in that: The two ends of the electromagnet are respectively connected to the equipment docking ends.

6. An adapter for resetting a pacemaker lead as claimed in claim 1, characterized in that: The two ends of the electromagnet are arranged with opposite polarities.

7. An adapter for resetting a pacemaker lead as claimed in claim 6, characterized in that: The two ends of the electromagnet are respectively provided with magnetic clamping parts.

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