CN215192117U - Traction device for pulling out lead of temporary cardiac pacemaker - Google Patents

Abstract

The utility model is suitable for a patient's postoperative of implanting temporary pacemaker after the cardiac surgery uses when pulling out the pacemaker wire. The clinical applications of installing epicardial temporary pacemakers are very wide, such as bradyarrhythmias occurring after surgery or a need to increase the heart rate to improve hemodynamic effects, endocardial temporary pacemaker implantation failure, etc. The pacemaker lead is required to be pulled out within 2-12 days after the epicardial temporary pacemaker is implanted, if the lead is not pulled out, infection is easily caused, even debridement operation is required, and due to various reasons, the pacemaker lead can not be pulled out at any time. The utility model discloses can effectually solve some can't pull out the problem of pacemaker wire in the operation, use the utility model discloses can last slowly tractive wire hard, utilize the heart beat power and tractive force slowly pull out the wire, effectual solved the cardiac rupture that tractive wire probably appears hard, the pericardium is clogged etc. and probably threaten patient's complication of life.

Description

Traction device for pulling out lead of temporary cardiac pacemaker

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to a tractive device for pulling out interim pacemaker wire of heart.

Background

The pacemaker is an electronic therapeutic apparatus implanted in vivo, and is composed of a pulse generator and a metal conducting wire connected with the pulse generator, wherein the pulse generator delivers electric pulses powered by a battery, and the electric pulses are conducted by conducting wire electrodes to stimulate cardiac muscle contacted by the electrodes, so that the heart is excited and contracted, and the purpose of treating the cardiac dysfunction caused by certain arrhythmia is achieved.

The clinical applications of installing epicardial temporary pacemakers are very wide, such as bradyarrhythmias occurring after surgery or a need to increase the heart rate to improve hemodynamic effects, endocardial temporary pacemaker implantation failure, etc.

At present, the epicardial temporary pacemaker lead wire used in the open-air surgery of the cardiac surgery is made of metal and is a braided lead wire with a suture needle, such as a monopolar hormone electrode Capture Epi-4965 and a bipolar hormone electrode Cap-sure Epi-496817 of Medtronic company in America. The traditional method for placing the lead of the epicardium temporary pacemaker is to directly sew the negative electrode lead of the epicardium temporary pacemaker in the myocardium in the avascular zone of the anterior wall of the right ventricle, the anode electrode lead is directly sewed at the epicardium of the right ventricle, the distance between the two polar leads is not less than 2cm, the lead of the epicardium temporary pacemaker is sewed and fixed and stanched by adopting a non-destructive thread according to the conditions of bleeding and the like, and after the test parameters are satisfied and no diaphragmatic muscle stimulation exists, the lead of the epicardium temporary pacemaker is penetrated out from the lower edge of the rib and is sewed and fixed with the body surface and then connected to the pulse generator. Generally, the pacemaker lead is required to be pulled out after the patient has stable and improved illness state within 2-12 days after the epicardial temporary pacemaker is implanted, and even debridement is required if the pacemaker lead is not pulled out, the infection is easily caused.

When the epicardial temporary pacemaker lead is pulled out, only fixed suture on the body surface needs to be cut off, and the lead is held by hands and continuously and forcefully pulled out slowly. However, for various reasons, the pacemaker lead may not be removed at any time, and at this time, a thoracotomy operation is often required again, which not only increases the pain and burden of the patient, but also is a hidden trouble causing medical disputes. It can be seen that one of the most critical steps after the surgical epicardial temporary pacemaker implantation operation is to remove the epicardial temporary pacemaker electrode lead, but when the pacemaker lead is removed, the lead is often adhered to the epicardial tissue or the lead is tightly sutured with the epicardial tissue and is difficult to remove, and at this time, if the lead is forcibly pulled out, the heart may rupture, the pericardium is packed, or even the patient may have life risk.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims at overcoming the not enough of above-mentioned prior art, provide a tractive device for pulling out heart temporary pacemaker wire, the utility model discloses can be effectual some manual problem of being difficult to the pacemaker wire of pulling out hard of solution use the utility model discloses can last slowly tractive wire hard for a long time, utilize the power of beating of heart and tractive force slowly pull out the wire, the effectual cracked risk of heart that the tractive wire probably appears hard of having solved.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

a traction device for pulling out a lead of a temporary cardiac pacemaker comprises a base, a sliding block and a protective cover, wherein the lower part of the base is a cuboid, a pair of supporting frames are arranged at the upper part of the left side of the base, a roller is arranged on each supporting frame through a pin shaft, and an arc groove for a transition lead is formed in the middle of the excircle of each roller; the middle part of the left end of the base is provided with an open slot for passing a lead; the upper surface of the right side of the base is provided with a convex key, a U-shaped sliding block is arranged above the right side of the base and can slide left and right along the convex key, the middle part of the sliding block is provided with an elongated slot, an adjusting screw penetrates through the elongated slot and is screwed on the base, and the sliding block can be tightly pressed on the base by screwing the adjusting screw; a wire clamp is arranged in a square hole in the upper part of the left side of the sliding block, the wire clamp can move left and right in the square hole but cannot rotate, a wire pressing cover used for pressing a wire is arranged on the upper part of the left side of the wire clamp, a limiting block is arranged on the lower part of the left side of the wire clamp, a limiting screw is screwed below the square hole of the sliding block, and the limiting screw limits the distance that the whole wire clamp can move right by limiting the limiting block; a press plate is fastened on the right side of the slide block by a screw, a slow-pulling bolt is arranged in a square hole in the upper part of the right side of the slide block, the shape of the left half part of the slow-pulling bolt is matched with that of the square hole, the slow-pulling bolt can move in the square hole but cannot rotate, and the bolt part of the right half part of the slow-pulling bolt penetrates through the round hole in the upper part of the press plate rightwards and is screwed with a slow-pulling nut; a slow pull spring is connected between the wire clamp and the slow pull bolt; the tension of the slow-pulling spring can be controlled by adjusting the slow-pulling nut; the left side and the right side of the bottom surface of the base are respectively stuck with a double-sided adhesive tape for sticking the base to the skin of a patient, and a transparent protective cover is buckled above the base and can be used for observing the pulling-out condition of the lead and preventing the patient from accidentally touching the lead and the slow-pulling spring.

The utility model discloses a use method: after the skin of the abdomen of a patient is cleaned, double-sided adhesive tapes at the bottom of the base are torn off, an open slot at the left side of the base is aligned to a lead penetrating out of the abdomen of the patient, the lead is clamped at the left end of the wire clamp by a wire pressing cover after crossing an arc slot at the periphery of the roller, an adjusting screw is loosened to adjust the slide block to be positioned at the position of the lead when the lead is straightened, the adjusting screw is fastened, and then a slow-pulling nut is slowly rotated to adjust the tension of the slow-pulling spring until the lead is tensioned; and finally, adjusting the distance between the limiting screw and the limiting block to be 1-2 mm, and fastening the protective cover to closely observe the symptoms of the patient.

(III) advantageous effects

The utility model has the advantages that: the utility model discloses can effectually solve the problem that some manual pacemakers wires that are difficult to extract hard use the utility model discloses can last slowly tractive wire hard for a long time, utilize the heart beat power and tractive force slowly pull out the wire, the effectual cracked risk of heart that tractive wire probably appears hard of having solved.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 2;

FIG. 6 is a cross-sectional view taken along line D-D of FIG. 2;

fig. 7 is a view taken along direction a in fig. 2.

[ description of reference ]

1: a base; 2: a slider; 3: an adjusting screw; 4: a limiting screw: 5: a limiting block; 6: double-sided adhesive tape; 7: conducting wires: 8: a protective cover; 9: a support frame; 10: a pin shaft; 11: a roller; 12: a wire pressing cover; 13: wire clamps; 14: a slow-pulling spring; 15: slowly pulling the bolt; 16: pressing a plate; 17: slowly pulling the nut; 18: an open slot; 19: a screw; 20: a convex key; 21: a long groove.

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. In which the terms "upper", "lower", etc. are used herein with reference to the orientation of fig. 1.

In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

A traction device for pulling out a lead of a temporary cardiac pacemaker comprises a base 1, a sliding block 2 and a protective cover 8, wherein the base 1 is made of medical plastics, the lower part of the base 1 is a cuboid, a pair of supporting frames 9 are arranged at the upper part of the left side of the base 1, a roller 11 made of plastics is arranged on each supporting frame 9 through a pin shaft 10, and the middle part of the excircle of each roller 11 is provided with an arc groove for a transition lead 7; the middle part of the left end of the base 1 is provided with an open slot 18 for passing through the lead 7; a convex key 20 is arranged on the upper surface of the right side of the base 1, a U-shaped sliding block 2 is arranged above the right side of the base 1, a groove at the lower part of the sliding block 2 is matched with the convex key 20, the sliding block 2 can slide left and right along the convex key 20, an elongated slot 21 is arranged in the middle of the sliding block 2, an adjusting screw 3 penetrates through the elongated slot 21 to be screwed on the base 1, and the sliding block 2 can be tightly pressed on the base 1 by screwing the adjusting screw 3; a wire clamp 13 is arranged in a square hole in the upper part of the left side of the sliding block 2, the wire clamp 13 can move left and right in the square hole but cannot rotate, a wire pressing cover 12 for pressing a wire 7 is arranged on the upper part of the left side of the wire clamp 13, a limiting block 5 protruding downwards is arranged on the lower part of the left side of the wire clamp 13, a limiting screw 4 is screwed below the square hole of the sliding block 2, and the limiting screw 4 limits the distance that the whole wire clamp 13 can move right by limiting the limiting block 5; a press plate 16 is fastened on the right side of the slide block 2 by a screw 19, a slow-pulling bolt 15 is arranged in a square hole at the upper part of the right side of the slide block 2, the shape of the left half part of the slow-pulling bolt 15 is matched with the square hole, the slow-pulling bolt 15 can move in the square hole but cannot rotate, and the bolt part at the right half part of the slow-pulling bolt 15 penetrates through the round hole at the upper part of the press plate 16 rightwards and then is screwed with a slow-pulling nut 17; a slow pull spring 14 is connected between the wire clamp 13 and the slow pull bolt 15; the tension of the slow-pulling spring 14 can be controlled by adjusting the slow-pulling nut 17; the left side and the right side of the bottom surface of the base 1 are respectively stuck with a double-sided adhesive tape 6 for sticking the base 1 to the skin of a patient, and a transparent protective cover 8 is buckled above the base 1 and can be used for observing the pulling-out condition of the lead 7 and preventing the patient from accidentally touching the lead 7 and the slow-pulling spring 14.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.

While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (3)

1. A pulling device for removing a lead of a temporary cardiac pacemaker, comprising: the novel protective cover comprises a base (1), a sliding block (2) and a protective cover (8), wherein the lower portion of the base (1) is a cuboid, a pair of supporting frames (9) is arranged on the upper portion of the left side of the base (1), an open slot (18) used for passing through a lead (7) is formed in the middle of the left end of the base (1), a convex key (20) is formed in the upper surface of the right side of the base (1), the U-shaped sliding block (2) is arranged above the right side of the base (1), the sliding block (2) can slide left and right along the convex key (20), an elongated slot (21) is formed in the middle of the sliding block (2), an adjusting screw (3) penetrates through the elongated slot (21) and is screwed on the base (1), the sliding block (2) can be pressed on the base (1) by screwing the adjusting screw (3), and the transparent protective cover (8) is buckled above the base (1).

2. A pulling device for extracting a lead of a temporary cardiac pacemaker as described in claim 1 wherein: a roller (11) is installed on the support frame (9) through a pin shaft (10), and the middle of the excircle of the roller (11) is provided with an arc groove for the transition wire (7).

3. A pulling device for extracting a lead of a temporary cardiac pacemaker as described in claim 1 wherein: a wire clamp (13) is arranged in a square hole in the upper portion of the left side of the sliding block (2), a wire pressing cover (12) used for pressing a wire (7) is arranged on the upper portion of the left side of the wire clamp (13), a limiting block (5) is arranged on the lower portion of the left side of the wire clamp (13), and a limiting screw (4) is screwed below the square hole in the upper portion of the left side of the sliding block (2); a clamp plate (16) is fastened by screw (19) slide block (2) right side, and a slow-pulling bolt (15) is equipped with in the square hole on slide block (2) right side upper portion, the bolt part of the right half portion of slow-pulling bolt (15) has one to be connect with after passing the round hole on clamp plate (16) upper portion right and has slowly pulled nut (17), is connected with one between fastener (13) and slow-pulling bolt (15) and slowly pulls spring (14).

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