CN216169392U

CN216169392U - Switching device

Info

Publication number: CN216169392U
Application number: CN202122299249.5U
Authority: CN
Inventors: 马贵洲
Original assignee: Shantou central hospital
Current assignee: Shantou central hospital
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-04-05
Anticipated expiration: 2031-09-22

Abstract

The utility model relates to the technical field of temporary cardiac pacing, and discloses a switching device which comprises a first joint, a first lead and a second lead, wherein the first joint is provided with an insulating shell; a jack matched with the stepped cylindrical joint of the active electrode lead is arranged in the insulating shell, and a first conductive part used for connecting an anode column of the stepped cylindrical joint and a second conductive part used for connecting a cathode column of the stepped cylindrical joint are arranged in the jack at intervals; a fastener for locking the stepped cylindrical joint is arranged on the outer side wall of the jack, one end of the first lead is connected with the first conductive part, and the other end of the first lead is provided with a second joint matched with an anode hole of the temporary pacemaker; one end of the second lead is connected with the second conductive part, and the other end of the second lead is provided with a third joint matched with the cathode hole of the temporary pacemaker; therefore, the switching device is convenient for a doctor to operate when in use, and potential safety hazards caused by the fact that the crocodile clip is used for connection are eliminated.

Description

Switching device

Technical Field

The utility model relates to the technical field of temporary cardiac pacing, in particular to a switching device.

Background

Temporary cardiac pacing is an effective and commonly used method for the treatment of chronic cardiac arrhythmias, such as emergency pacing of cardiac arrest, transient treatment of sick sinus syndrome and atrioventricular conduction block, and preventive protective treatment during the perioperative period of surgery.

The temporary pacing therapy needs to puncture a deep vein (mostly internal jugular vein or subclavian vein) to place a temporary pacing electrode to a right ventricle, and then the external end of the temporary pacing electrode is connected with a temporary pacemaker to perform pacing therapy, the head end of the existing temporary pacing electrode lead is cylindrical, the surface is smooth, the temporary pacing electrode lead is not easy to fix and is easy to dislocate, and poor pacing function can be caused; moreover, the cylindrical electrode head has high hardness and poor flexibility, so that the risk of heart perforation caused by the pacing electrode to endanger the life of a patient exists; therefore, after the existing temporary pacing electrode is placed in a patient body, the patient needs position braking, the patient is often difficult to tolerate, the subsequent risk of secondary venous thrombosis is obviously increased, multiple risks such as secondary cardiac perforation and infection can be caused, and close electrocardiographic detection is needed, so that the placement time of the temporary pacing lead is generally not longer than two weeks. The active electrode lead in the ventricle is soft and has good compliance, and the spiral head end is screwed into the myocardium for fixation after being implanted through subclavian veins and the like under the guidance of X-ray fluoroscopy. Therefore, the ventricular active electrode lead can overcome the defects that the existing temporary pacing electrode needs body position braking, is easy to perforate, needs close electrocardiographic monitoring and the like after being implanted; therefore, for some patients who need to rely on longer temporary pacing time, clinicians often apply active electrode leads instead of temporary pacing electrodes.

The external link of current initiative electrode wire is to match the setting with permanent artificial heart pacemaker, the position link of initiative electrode wire is ladder cylinder joint, the cylinder that is located the minor diameter that connects the front end is the cathode column, the cylinder that is located the major diameter at joint middle part and arranges with the cathode column is the anode column, however, the link of temporary pacemaker is two wiring holes of independently arranging, consequently, the ladder cylinder of current initiative electrode wire connects can't directly be connected with two connecting holes of independently arranging of temporary pacemaker, to the patient that does not need permanent artificial heart pacemaker, use permanent artificial heart pacemaker can increase a large amount of medical expenses. Therefore, the doctor usually passes through two alligator clip connecting wires, as shown in fig. 1, the alligator clip at one end of the cathode connecting wire 7 is clamped on the outer side wall of the cathode column 22, the alligator clip at the other end of the cathode connecting wire 7 is clamped at the outer side wall of one end of the cathode pin 412, and then the other end of the cathode pin 412 is inserted into the cathode connecting hole of the cathode end 6 of the temporary pacemaker; clamping the crocodile clip at one end of the anode connecting wire 8 on the outer side wall of the anode column 21, clamping the crocodile clip at the other end of the anode connecting wire 8 at the outer side wall of one end of the anode pin 312, and then inserting the other end of the anode pin 312 into the anode connecting hole of the anode end 5 of the temporary pacemaker; the connection of the active electrode lead 2 with the cathode terminal 6 and the anode terminal 5 of the temporary pacemaker is realized.

However, when the stepped cylindrical joint of the active electrode lead is connected with the anode needle or the cathode needle of the temporary cardiac pacemaker by using the crocodile clip connecting wire, the operation is inconvenient, the conductive end of the crocodile clip is exposed outside, and a patient or family members of the patient easily mistakenly touch the conductive end, so that potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that a switching device special for connecting an active electrode lead and a temporary cardiac pacemaker is lacked, the operation is inconvenient when a step cylindrical joint of the active electrode lead and an anode needle or a cathode needle of the temporary cardiac pacemaker are connected by using an alligator clip connecting wire, a conductive end of the alligator clip is exposed outside, a patient or family members of the patient easily touch the conductive end by mistake, and potential safety hazards exist.

In order to solve the technical problem, the utility model provides a switching device, which comprises a first joint, a first lead, a second lead and a fastener, wherein the first joint comprises a first insulating shell, a jack is arranged in the first insulating shell, and a first conductive part used for connecting an anode column of a stepped cylindrical joint and a second conductive part used for connecting a cathode column of the stepped cylindrical joint are arranged in the jack at intervals;

one end of the first lead is connected with the first conductive part, and the other end of the first lead is provided with a second joint matched with an anode hole of the temporary pacemaker; one end of the second lead is connected with the second conductive part, and the other end of the second lead is provided with a third joint matched with the cathode hole of the temporary pacemaker;

the outer side wall of the jack is provided with a through hole for the fastener to pass through, the fastener is installed in the through hole, and one end of the fastener is abutted to the outer side wall of the stepped cylindrical joint.

Preferably, the first conductive part comprises a first cylinder coaxially embedded in the middle of the insertion hole, and the diameter of an inner cavity of the first cylinder is matched with that of the anode post.

As a preferred scheme, a second cylinder body arranged along the radial direction of the first cylinder body is arranged on the side wall of the first cylinder body, and the second cylinder body is embedded in the through hole;

the inner cavity of the second cylinder body is communicated with the inner cavity of the first cylinder body, the inner side wall of the second cylinder body is provided with an internal thread matched with the fastening piece, and the fastening piece is assembled in the second cylinder body in a threaded mode; the end of the first lead is connected to the outer side wall of the second cylinder.

Preferably, the fastener is a conductor.

Preferably, the fastener comprises a screw and a nut, and an insulating cover is sleeved on the nut.

Preferably, a first insulating sealing ring is arranged between the lower end of the nut and the outer side wall of the first insulating shell.

Preferably, a second insulating sealing ring is coaxially arranged at a port of the jack.

Preferably, the material of the first insulating shell is transparent plastic.

Preferably, the second conductive member is a cylindrical body coaxially disposed in the insertion hole, one side of the cylindrical body is provided with a tapered hole with an opening facing the opening of the insertion hole, and the end of the cathode pillar abuts against the inner hole wall of the tapered hole.

Preferably, the second connector comprises a second insulating shell and an anode needle, the anode needle is matched with an anode hole of the temporary pacemaker, one end of the anode needle is embedded in the second insulating shell, and the first lead is connected with the anode needle;

the third joint comprises a third insulating shell and a cathode needle, the cathode needle is matched with a cathode hole of the temporary pacemaker, one end of the cathode needle is embedded in the third insulating shell, and the second lead is connected with the cathode needle.

Compared with the prior art, the switching device has the advantages that:

the switching device comprises a first connector provided with an insulating shell, wherein a jack matched with a stepped cylindrical connector of an active electrode lead is arranged in the insulating shell, and a first conductive part used for connecting an anode column of the stepped cylindrical connector and a second conductive part used for connecting a cathode column of the stepped cylindrical connector are arranged in the jack at intervals; the connection between the active electrode lead and the switching device can be realized by inserting the stepped cylindrical joint into the jack; the outer side wall of the jack is provided with a fastener, and the fastener penetrates through the side wall of the jack and abuts against the outer side wall of the stepped cylindrical joint when the stepped cylindrical joint is inserted into the jack, so that the stepped cylindrical joint is stably locked in the first joint; one end of the first lead is connected with the first conductive part, the other end of the first lead is provided with a second joint matched with an anode hole of the temporary pacemaker, one end of the second lead is connected with the second conductive part, and the other end of the second lead is provided with a third joint matched with a cathode hole of the temporary pacemaker; the second joint and the third joint are arranged to facilitate the connection of the switching device and the temporary pacemaker; therefore, the switching device is convenient for a doctor to operate when in use, and potential safety hazards caused by the fact that the crocodile clip is used for connection are eliminated.

Drawings

FIG. 1 is a schematic diagram of a conventional connection of an active electrode lead to a temporary pacemaker using an alligator clip;

FIG. 2 is a schematic structural diagram of an embodiment of a adapting device according to the present invention after being connected to a stepped cylindrical joint of an active electrode lead;

FIG. 3 is a schematic structural diagram of a stepped cylindrical joint of an adapter device not connected to an active electrode lead according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken at A-A in FIG. 3;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 3;

in the figure, 1, a first joint; 11. a first insulating housing; 111. a jack; 112. a first conductive member; 1121. a first cylinder; 1122. a second cylinder; 113. a second conductive member; 114. a second insulating seal ring; 12. a fastener; 121. an insulating cover; 122. a first insulating seal ring; 2. a stepped cylindrical joint; 21. an anode column; 22. a cathode column; 3. a first conductive line; 31. a second joint; 311. a second insulating housing; 312. an anode needle; 4. a second conductive line; 41. a third joint; 411. a third insulating case; 412. a cathode pin; 5. a temporary pacemaker anode terminal; 6. a temporary pacemaker cathode terminal; 7. a cathode connection line; 71. a cathode pin; 8. an anode connecting wire; 81. an anode needle; 9. and (4) insulating the outer sleeve.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

As shown in fig. 2 to 5, a preferred embodiment of the adapter of the present invention includes a first connector 1, the first connector 1 includes a first insulating housing 11, a receptacle 111 is provided in the first insulating housing 11, the receptacle 111 matches with the stepped cylindrical connector 2 of the active electrode lead, a first conductive member 112 for connecting the anode post 21 of the stepped cylindrical connector 2, and a second conductive member 113 for connecting the cathode post 22 of the stepped cylindrical connector 2 are provided at intervals in the receptacle 111; the connection between the active electrode lead and the switching device can be realized by inserting the stepped cylindrical joint 2 into the jack 111; a fastening piece 12 is arranged on the outer side wall of the insertion hole 111, and when the stepped cylindrical joint 2 is inserted into the insertion hole 111, the fastening piece 12 penetrates through the side wall of the insertion hole 111 and abuts against the outer side wall of the stepped cylindrical joint 2; thereby stably locking the stepped cylindrical joint 2 in the insertion hole 111; the stable connection of the stepped cylindrical joint 2 and the first joint 11 is realized; one end of the first lead 3 is connected with the first conductive part 112, and the other end of the first lead 3 is provided with a second joint 31 matched with an anode hole of the temporary pacemaker; one end of the second lead 4 is connected to the second conductive member 113, and the other end of the second lead 4 is provided with a third connector 41 matching with the cathode hole of the temporary pacemaker; the second connector 31 and the third connector 41 are arranged to facilitate the connection of the switching device with the temporary pacemaker; therefore, the switching device is convenient for a doctor to operate during use, and potential safety hazards caused by the fact that the crocodile clip is used for connection are eliminated. In this embodiment, the axial length of the first tube 1121 is 4 mm.

Wherein, first conductive part 112 includes that coaxial the inlaying establishes the first barrel 1121 in the middle part of jack, and the inner chamber diameter of first barrel 1121 and the diameter phase-match of male post 21 set up the inner chamber of first conductive part 112 into the round hole with male post 21 assorted, have guaranteed the area of contact of first conductive part and male post 21, and then have guaranteed that first joint is electrically conductive with male post 21's stability.

In this embodiment, the side wall of the first cylinder is provided with a second cylinder 1122 arranged along the radial direction of the first cylinder 1121, and the second cylinder 1122 is embedded in the insulating housing 11; the inner cavity of the second cylinder 1122 is through with the inner cavity of the first cylinder 1121, the inner side wall of the second cylinder 1122 is provided with an internal thread matched with the fastening member 12, the fastening member 12 is assembled in the second cylinder 1122 in a threaded manner, and the end of the first lead 3 is connected to the outer side wall of the second cylinder 1122.

Specifically, in this embodiment, the second cylinder 1122 and the first cylinder 1121 are integrally formed, and the second cylinder is integrally formed on the first cylinder 1121, so that not only is the connection firmness of the second cylinder 1122 and the first cylinder ensured, but also the first conductor 112 is directly embedded in the first insulating housing 11 during injection molding, so that the processing is convenient, and the manufacturing cost is saved. In this embodiment, first conductive part adopts the copper product preparation, and fastener 12 is the conductor, sets up fastener 12 as the conductor, has further improved the conductive area of first conductive part and anode post 21, has reduced resistance, has guaranteed that first joint and anode post 21 are electrically conductive stable.

Wherein, fastener 12 includes nut and screw rod, and nut department cover is equipped with insulating boot 121, and insulating boot 121's setting can prevent that the personnel that the electrically conductive position exposes and leads to from touching by mistake, has guaranteed the security when switching device uses.

Furthermore, a first insulating sealing ring 122 is arranged between the lower end of the nut of the fastening piece 12 and the outer side wall of the first insulating shell 11, the insulating property of the first joint 1 is further improved by the arrangement of the first insulating sealing ring 122, and the joint short circuit caused by the liquid water scattering on the surface of the first joint 1 can be prevented.

For the insulating nature and the leakproofness that further improve first joint, the port department of jack 111 is coaxial to be equipped with second insulating seal circle 114, and second insulating seal circle 114 not only can realize the sealed of jack 111, can also be used for the lateral wall of elasticity centre gripping ladder cylinder joint 2 for ladder cylinder joint 2 is connected steadily in jack 111, and specific second insulating seal circle 114's hole diameter is 4 mm.

In this embodiment, insulating housing 11's material is transparent plastic, and medical personnel of being convenient for externally observe the contact condition of ladder cylinder joint 2 and first joint 1, are convenient for in time discharge trouble.

In this embodiment, the second conductive member 113 is a cylindrical body coaxially disposed in the insertion hole 111, a tapered hole having an opening facing the insertion hole is disposed in the cylindrical body, and the end of the cathode pillar 22 abuts against the inner hole wall of the tapered hole. Specifically, in this embodiment, the axial length of the cylindrical body is 5mm, the tapered hole is a tapered blind hole, the diameter of the orifice of the tapered blind hole is greater than the diameter of the cathode pillar 22, and the diameter of the bottom of the tapered blind hole is smaller than the diameter of the cathode pillar 22, specifically, the diameter of the bottom of the tapered blind hole is 2mm, the distance between one end of the cylindrical body close to the first cylinder 1121 and the first cylinder 1121 is 5mm, the tapered blind hole can adapt to the diameter fluctuation of the cathode pillar, and the cathode pillar and the second conductive component 113 are ensured to have good conductivity.

In this embodiment, the second connector 31 includes a second insulating housing 311 and an anode pin 312, the anode pin 312 is matched with an anode hole of the temporary pacemaker, one end of the anode pin 312 is embedded in the second insulating housing 311, and the first lead 3 is connected with the anode pin; when the temporary pacemaker-type connecting device is used, the anode needle 312 is inserted into the anode port of the temporary pacemaker, so that the second connector 31 can be connected with the temporary pacemaker, and the operation is convenient and quick.

The third connector 41 includes a third insulating case 411 and a cathode pin 412, the cathode pin 412 is matched with the cathode hole of the temporary pacemaker, one end of the cathode pin 412 is embedded in the third insulating case 411, and the second lead 4 is connected with the cathode pin 412. When the temporary pacemaker is used, the cathode needle 412 is inserted into the cathode port of the temporary pacemaker, so that the third connector 41 can be connected with the temporary pacemaker, and the operation is convenient and quick.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A switching device is characterized by comprising a first connector (1), a first lead (3), a second lead (4) and a fastener (12), wherein the first connector (1) comprises a first insulating shell (11), a jack (111) is arranged in the first insulating shell (11), a first conductive part (112) used for connecting an anode column (21) of a stepped cylindrical connector (2) and a second conductive part (113) used for connecting a cathode column (22) of the stepped cylindrical connector (2) are arranged in the jack (111) at intervals;

one end of the first lead (3) is connected with the first conductive part (112), and the other end of the first lead (3) is provided with a second joint (31) matched with an anode hole of the temporary pacemaker; one end of the second lead (4) is connected with the second conductive part (113), and the other end of the second lead (4) is provided with a third joint (41) matched with a cathode hole of the temporary pacemaker;

the outer side wall of the insertion hole (111) is provided with a through hole for the fastener (12) to pass through, the fastener (12) is installed in the through hole, and one end of the fastener (12) abuts against the outer side wall of the stepped cylindrical joint (2).

2. An adapting device according to claim 1, wherein the first conductive part (112) comprises a first cylinder (1121) coaxially embedded in the middle of the insertion hole, and the diameter of the inner cavity of the first cylinder (1121) is matched with the diameter of the male pole (21).

3. The transfer device according to claim 2, wherein a second cylinder (1122) arranged along a radial direction of the first cylinder (1121) is provided on a side wall of the first cylinder (1121), and the second cylinder (1122) is inserted into the through hole;

the inner cavity of the second cylinder body (1122) is communicated with the inner cavity of the first cylinder body (1121), inner side walls of the second cylinder body (1122) are provided with inner threads matched with the fastening pieces (12), and the fastening pieces (12) are assembled in the second cylinder body (1122) in a threaded mode; the end of the first wire (3) is connected at the outer sidewall of the second cylinder (1122).

4. A device according to claim 3, characterized in that the fastening element (12) is a conductor.

5. A device according to claim 4, characterized in that said fastening means (12) comprise a screw and a nut, said nut being provided with an insulating cover (121).

6. An adapter device according to claim 5, characterized in that a first insulating sealing ring (122) is provided between the lower end of the nut and the outer side wall of the first insulating housing (11).

7. A transfer device according to claim 1, wherein a second insulating sealing ring (114) is coaxially arranged at a port of the insertion hole (111).

8. A switching device according to any one of claims 1 to 7, characterised in that the material of the first insulating housing (11) is a transparent plastic.

9. A transfer device according to any of claims 1 to 7, characterized in that the second conductive member (113) is a cylindrical body coaxially arranged in the receptacle (111), one side of the cylindrical body being provided with a conical hole opening towards the opening of the receptacle, the end of the cathode pillar (22) resting against the inner bore wall of the conical hole.

10. The transfer device according to any one of claims 1 to 7, wherein the second connector (31) comprises a second insulating housing (311), an anode needle (312), the anode needle (312) is matched with an anode hole of the temporary pacemaker, one end of the anode needle (312) is embedded in the second insulating housing (311), and the first lead (3) is connected with the anode needle;

the third joint (41) comprises a third insulating shell (411) and a cathode needle (412), the cathode needle (412) is matched with a cathode hole of the temporary pacemaker, one end of the cathode needle (412) is embedded in the third insulating shell (411), and the second lead (4) is connected with the cathode needle (412).