CN211097018U

CN211097018U - Active temporary pacing lead converter

Info

Publication number: CN211097018U
Application number: CN201922014266.2U
Authority: CN
Inventors: 顾敏; 华伟; 牛红霞; 陈旭华; 翟琳; 胡奕然; 刘曦
Original assignee: Fuwai Hospital of CAMS and PUMC
Current assignee: Fuwai Hospital of CAMS and PUMC
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-07-28
Anticipated expiration: 2029-11-20

Abstract

The utility model relates to an active temporary pacing lead converter, which comprises a converter and a fixed head; one end of the converter is provided with a first threaded column and a second threaded column, the other end of the converter is provided with a third threaded column, the first wire hole is provided with a positive wire extending to a third wire hole, and the second wire hole is provided with a negative wire extending to the third wire hole; the fixing head comprises a compression nut, a first compression ring and a compression sleeve, the compression nut is in threaded connection with the threaded column, and the first compression ring is located between the compression nut and the compression sleeve; the inner diameter of the pressing sleeve is gradually reduced from the end face to the direction far away from the pressing ring; the inside wall that compresses tightly the cover is connected with the laminating of the lateral wall of clamp ring, and when gland nut removed to the converter direction at the screw thread post, the clamp ring can stretch into and compress tightly the cover, and this scheme can realize the electrode wire of initiatively pacing and be connected with interim pacemaker steadily, makes the two normally work, can not appear becoming flexible, and then reduces medical risk.

Description

Active temporary pacing lead converter

Technical Field

The utility model relates to a medical appliances field particularly, relates to a wire converter paces temporarily in initiative.

Background

The temporary pacemaker sends electric pulses through a pulse generator positioned outside the body, stimulates the cardiac muscle contacted by the electrode through the conduction of the electrode lead, and leads the heart to excite and contract, thereby achieving the aim of treating or preventing severe bradycardia.

A commonly used temporary pacing electrode lead is a passive lead that relies on the tension created by a properly reserved lead to maintain the electrode in contact with the myocardium. If the lead is reserved too much, arrhythmia can be caused by mechanical stimulation, and even electrode perforation can occur. If the lead is reserved too little, the electrode can be dislocated, the pacing is lost, and the life of the patient can be seriously threatened. For patients who need to use temporary pacemakers for a longer time, reliable fixation is very important.

Using the active electrode lead of a permanent pacemaker instead of a temporary pacing electrode is an effective approach. The active electrode lead can be firmly fixed with the endocardium through the spiral of the head, and the lead body is soft, so that complications such as perforation of the electrode lead and the like are not easy to occur.

The main problems at present are: the tail end of the active electrode lead for permanent pacing cannot be directly connected to the temporary pacemaker.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To current technical problem, the utility model provides a wire converter of initiatively pacing temporarily aims at solving the unable problem of being connected of current initiative pacing electrode wire and temporary pacemaker.

(II) technical scheme

In order to achieve the above object, the present invention provides an active temporary pacing lead transducer, which includes a transducer and a fixed head;

the converter is provided with a threaded column, the threaded column comprises a first threaded column, a second threaded column and a third threaded column, the first threaded column and the second threaded column are arranged at one end of the converter, the third threaded column is arranged at the other end of the converter, the first threaded column is provided with a first wire hole, the second threaded column is provided with a second wire hole, a third wire hole is arranged in the third threaded column, the first wire hole is provided with a positive wire extending to the third wire hole, and the second wire hole is provided with a negative wire extending to the third wire hole;

the fixing head comprises a compression nut, a first compression ring and a compression sleeve, the compression nut is in threaded connection with the threaded column, and the first compression ring is located between the compression nut and the compression sleeve; the inner diameter of the compression sleeve is gradually reduced from the end face to the direction far away from the compression ring;

the inner side wall of the compression sleeve is attached to the outer side wall of the compression ring, and when the compression nut moves towards the direction of the converter from the threaded column, the compression ring can extend into the compression sleeve.

Preferably, the fixing head further comprises a second compression ring, and the second compression ring is located between the end face of the wire hole and the compression sleeve.

Preferably, the surface of the first compression ring contacting the compression sleeve is a conical surface, and the surface of the second compression ring contacting the compression sleeve is a conical surface.

Preferably, the hardness of the first compression ring and the second compression ring is less than the hardness of the compression sleeve.

Preferably, the first clamp ring is provided with a first boss, and the second clamp ring is provided with a second boss.

Preferably, the second boss contacts an end face of the converter on which the threaded post is located.

Preferably, the compression nut is provided with a compression surface, and the first boss is in contact with the compression surface.

(III) advantageous effects

The beneficial effects of the utility model are that, this kind of be applied to the converter of the interim electrode of initiative can realize being connected of initiative pacing electrode wire and interim pacemaker steadily, makes the two can normally work, can not appear becoming flexible, and then reduces medical risk, can really solve patient's the state of an illness.

Drawings

Fig. 1 is a schematic structural diagram of an active temporary pacing lead converter according to the present invention;

fig. 2 is an enlarged view of fig. 1 at a.

[ description of reference ]

10: a converter; 11: a positive line; 12: a third threaded post; 13: a third wire hole; 14: a first threaded post; 15: a first wire hole; 16: a second threaded post; 17: a second wire hole; 18: a negative electrode line;

20: a fixed head; 21: a compression nut; 22: a first clamp ring; 23: a compression sleeve; 24: a second clamp ring; 25: a first boss; 26: a second boss.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The utility model provides an active temporary pacing lead converter, which comprises a converter 10 and a fixed head 20; referring to fig. 1 and 2, one end of the converter 10 is provided with a first wire hole 15 and a second wire hole 17 for connecting the temporary pacemaker, wherein a positive wire 11 is arranged in the first wire hole 15, and a negative wire 18 is arranged in the second wire hole, when in use, the positive wire and the negative wire of the temporary pacemaker need to be inserted into the wire holes to contact the positive wire 11 and the negative wire 18, the other end of the converter 10 is provided with a third threaded post 12, a third wire hole 13 is arranged in the third threaded post 12, and both the positive wire 11 and the negative wire 18 extend to the third wire hole.

The surface of the wire is smooth, so that the wire needs to be fixed on the converter 10, the fixing head 20 for fixing comprises a compression nut 21, a first compression ring 22 and a compression sleeve 23, referring to fig. 2, the compression nut 21 is in threaded connection with the threaded column, and the first compression ring 22 is located between the compression nut 21 and the compression sleeve 23; the inner diameter of the pressing sleeve 23 is gradually reduced from the end face to the direction far away from the pressing ring; the inside wall of clamp sleeve 23 is connected with the laminating of the lateral wall of clamp ring, when gland nut 21 moves to converter 10 direction at screw thread post 12, the clamp ring can stretch into clamp sleeve 23, along with the increase of clamp ring entering clamp sleeve 23 degree of depth, clamp sleeve 23 begins to lead to the clamp ring, the radius of the inside wall of clamp sleeve 23 reduces gradually simultaneously, and then the internal diameter of clamp ring reduces gradually, the clamping-force increase of clamp ring to the wire, thereby the fixed effect of wire has been improved.

Wherein, the screw thread post includes first screw thread post, second screw thread post, third screw thread post, all be provided with the fixed head on the three screw thread post, refer to fig. 1, fixed head 20 and the cooperation of converter 10, can all fix the wire of initiative pacing electrode, the anodal wire and the negative pole wire of temporary pacemaker on converter 10, can realize being connected between initiative pacing electrode wire and the temporary pacemaker steadily, make the two can normally work, can not appear becoming flexible, and then reduce medical risk, can really solve patient's the state of an illness.

Referring to fig. 2, the fixing head 20 further includes a second compression ring 24, the second compression ring 24 is located between the end surface of the wire hole 13 and the compression sleeve 23, in order to enhance the fixing effect, in this embodiment, the two ends of the compression sleeve 23 are both provided with the compression rings, wherein the first compression ring 22 is arranged at the lower end of the compression sleeve 23, and the second compression ring 24 is arranged at the upper end of the compression sleeve 23; correspondingly, the inside wall of clamp sleeve 23 is hourglass shape, two faces are the direction conical surface about clamp sleeve 23's the inside wall, the internal diameter of two direction conical surfaces all reduces to the middle part from clamp sleeve 23's terminal surface, when compeling tight nut to remove to converter 10 direction, first clamp ring 22 and second clamp ring 24 all follow the inside of the embedded clamp sleeve 23 of direction conical surface, first clamp ring 22 and second clamp ring 24 mutually support, make the fixed area of wire further strengthen, better fixed effect of wire has been guaranteed.

Specifically, referring to fig. 2, a contact surface of the first compression ring 22 and the compression sleeve 23 is a conical surface, and a contact surface of the second compression ring 24 and the compression sleeve 23 is a conical surface, so that the first compression ring 22 and the second compression ring 24 can better enter the compression sleeve 23, outer surfaces of the first compression ring 22 and the second compression ring 24 are conical surfaces, in this embodiment, an outer surface diameter of the first compression ring 22 decreases from bottom to top, and an outer surface diameter of the second compression ring 24 increases from bottom to top.

Wherein the hardness of the first compression ring 22 and the second compression ring 24 is less than the hardness of the compression sleeve 23, such that the first compression ring 22 and the second compression ring 24 are prevented from rebounding into the compression sleeve 23, and in a preferred embodiment, the hardness of the first compression ring 22 and the second compression ring 24 is lower and is easily deformed, such that it is more easily pressed into the compression sleeve 23; and the higher extrusion clamp ring that can be better of clamp sleeve 23 hardness to the guarantee clamp ring can press from both sides tight wire better.

Further, referring again to fig. 2, in order to better mount the fixing head 20, the first clamp ring 22 is provided with a first boss 25, the second clamp ring 24 is provided with a second boss 26, in a preferred embodiment, the diameter of the second boss 26 is close to the diameter of the third threaded column 12, the second clamp ring 24 can be mounted at a designated position only by placing the second clamp ring 24 into the third threaded column 12, and correspondingly, the diameter of the first clamp ring 22 is close to the diameter of the clamp nut 21, and the first clamp ring 22 can be mounted in place only by placing the first clamp ring 22 into the clamp nut 21.

The second boss 26 is in contact with the end face of the converter 10 where the third threaded column 12 is located, so that the contact area between the second compression ring 24 and the end face of the converter 10 is greatly increased, and the compression process can be performed more smoothly. Further, referring to fig. 1, the compression nut 21 is provided with a compression surface with which the first boss 25 contacts to further increase the contact area of the first compression ring 22 with the compression nut 21.

The above description is only for the embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An active temporary pacing lead translator, comprising a translator and a fixation head;

2. The active temporary pacing lead translator of claim 1 wherein the fixation head further includes a second compression ring, the second compression ring being located between the end face of the wire hole and the compression sleeve.

3. The active temporary pacing lead translator of claim 2 wherein the face of the first compression ring in contact with the compression sleeve is tapered and the face of the second compression ring in contact with the compression sleeve is tapered.

4. The active temporary pacing lead transducer according to claim 2, wherein the first compression ring and the second compression ring have a hardness less than a hardness of the compression sleeve.

5. The active temporary pacing lead translator of claim 2 wherein the first compression ring is provided with a first boss and the second compression ring is provided with a second boss.

6. The active temporary pacing lead translator of claim 5 wherein the second boss contacts an end face of the translator on which the threaded post is located.

7. The active temporary pacing lead translator of claim 5 wherein the compression nut is provided with a compression surface, the first boss being in contact with the compression surface.