CN220275612U

CN220275612U - ICM manual trigger

Info

Publication number: CN220275612U
Application number: CN202222566851.5U
Authority: CN
Inventors: 平利川
Original assignee: Suzhou Wushuang Medical Equipment Co ltd
Current assignee: Suzhou Wushuang Medical Equipment Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2024-01-02
Anticipated expiration: 2032-09-27

Abstract

The utility model provides an ICM manual trigger, which comprises a shell, wherein the shell comprises an upper shell and a lower shell, the upper shell is connected with the lower shell through threads, and a first guide rod is arranged on the inner wall of the upper shell; the telescopic mechanism is arranged in the shell and comprises a pressing wheel, a rotating wheel, a clamping piece and a spring seat, and the pressing wheel is installed on the first guide rod in a sliding mode; the lower end of the pressing wheel is sleeved at the upper end of the rotating wheel; the lower end of the rotating wheel is sleeved at the upper end of the clamping piece; the lower end of the clamping piece is connected with the spring seat, and a spring is sleeved between the clamping piece and the spring seat; and the magnet is fixedly arranged on the clamping piece. According to the utility model, through the design of the telescopic mechanism, the magnet can be telescopic in the shell, so that the magnet can provide a strong magnetic field for triggering the ICM when in use, and the magnetic field strength of a triggering part can be weakened when not in use, so that the magnet can be prevented from accidentally adsorbing a magnetic object.

Description

ICM manual trigger

Technical Field

The utility model relates to the technical field of implantable heart monitors, in particular to an ICM manual trigger.

Background

An implantable cardiac monitor (Insertable Cardiac Monitor, ICM) is an instrument that can monitor cardiac electrical signals over a long period of time and record abnormal events such as atrial fibrillation, ventricular tachycardia, bradycardia, cardiac arrest, etc. There are two main ways of recording cardiac events by ICM, one is to automatically monitor and record cardiac events directly by ICM implanted in the patient; the other is to actively control the ICM to record events by manual triggers when the patient feels uncomfortable.

A typical manual trigger is a magnet which, when a patient feels uncomfortable, is brought close to the implantation site of the ICM by the patient, and a magnetic sensor (e.g., a hall sensor) contained inside the ICM senses a magnetic field and wakes up an MCU inside the ICM to perform a corresponding recording action. Because the magnet needs to be carried around, there is an unnecessary problem of magnetic object adsorption, for example, when the patient puts the magnet into the pocket, the magnetic permeability object such as coin is inevitably adsorbed; when the bracelet is manufactured, the bracelet is easy to adsorb on the surfaces of certain furniture and household appliances with magnetism. The magnet is generally designed to be strong magnetic to keep the magnetic field strength so as to ensure that the magnet can wake up the ICM, the magnetic object is generally difficult to take down after being adsorbed by the strong magnetic, and meanwhile, the strong magnetic possibly clamps the infant, so that certain potential safety hazards exist. In addition, the magnet is small in size, and the problem of losing is often caused when the magnet is carried around.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides an ICM manual trigger which can provide a strong magnetic field for triggering ICM when in use and weaken the magnetic field strength of a triggering part when not in use so as to prevent the ICM manual trigger from accidentally adsorbing a magnetic object.

To achieve the above and other objects, the present utility model is achieved by comprising the following technical solutions: the utility model provides an ICM manual trigger, which is characterized by comprising the following components: the shell comprises an upper shell and a lower shell, wherein the upper shell is connected with the lower shell through threads, and a first guide rod is arranged on the inner wall of the upper shell; the telescopic mechanism is arranged in the shell and comprises a pressing wheel, a rotating wheel, a clamping piece and a spring seat, and the pressing wheel is installed on the first guide rod in a sliding mode; the lower end of the pressing wheel is sleeved at the upper end of the rotating wheel and is in rotating connection with the rotating wheel; the lower end of the rotating wheel is sleeved at the upper end of the clamping piece and is rotationally connected with the clamping piece; the lower end of the clamping piece is connected with the spring seat, and a spring is sleeved between the clamping piece and the spring seat; and the magnet is fixedly arranged on the clamping piece.

In an embodiment, the ICM manual trigger further comprises a pull ring fixedly disposed at an upper end of the thumb wheel, and the upper housing is provided with a pull ring groove, and the pull ring is disposed at the pull ring groove.

In one embodiment, the upper end of the thumb wheel is raised above the upper end surface of the upper housing.

In an embodiment, the lower end face of the pressing wheel is in a zigzag shape, the rotating wheel is provided with a stop groove, and the lower end face of the pressing wheel, the end face of the stop groove and the lower end face of the first guide rod are all inclined planes.

In one embodiment, the lower end of the clamping piece is provided with a clamping cavity, and the magnet is arranged in the clamping cavity.

In one embodiment, the magnet has an outer diameter equal to the diameter of the clamping cavity.

In an embodiment, the clamping member is provided with a baffle ring, and the spring is sleeved between the baffle ring and the base of the spring seat.

In an embodiment, a second guide rod is arranged on the inner wall of the spring seat, and the upper end of the second guide rod is higher than the upper end of the spring seat body.

In an embodiment, a third guide groove is formed in the baffle ring and the lower end portion of the clamping piece, and the clamping piece slides up and down along the second guide rod through the third guide groove.

In an embodiment, the lower end surface of the lower housing is a sealing structure.

According to the utility model, through the design of the telescopic mechanism, the magnet can be telescopic in the shell, so that when the ICM manual trigger is used, the lower end part of the lower shell can provide a strong magnetic field for triggering the ICM; the magnetic field strength at the lower end portion of the lower housing is weakened when not in use, thereby preventing it from accidentally attracting magnetic objects. In addition, the design of pull ring can be convenient ICM manual trigger hangs to establish on objects such as key ring, conveniently carries and be difficult for losing.

Drawings

Fig. 1 shows a schematic outline structure of the present utility model.

Fig. 2 shows an exploded view of the present utility model.

FIG. 3 is a schematic cross-sectional view of the pull ring and telescoping mechanism of the present utility model.

Fig. 4 is a schematic perspective view of a clamping member according to the present utility model.

Fig. 5A is a schematic view showing a state in which the tab is released for the second time when the present utility model is not in use or in use (the housing is omitted).

Fig. 5B is a schematic view showing a state in which the tab is first pressed down (the housing is omitted) when the present utility model is used.

Fig. 5C is a schematic view showing a state in which the tab is released for the first time (the housing is omitted) when the present utility model is used.

Fig. 5D is a schematic view showing a state in which the tab is pressed down for the second time (the housing is omitted) when the present utility model is used.

Detailed Description

Please refer to fig. 1 to 5D. Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof.

As shown in fig. 1 and 2, the present utility model provides an ICM manual trigger 100, which comprises a housing 10, a pull ring 20, a telescopic mechanism 30 and a magnet 40, wherein the telescopic mechanism 30 comprises a press wheel 31, a rotating wheel 32, a clamping piece 33 and a spring seat 34, and the press wheel 31, the rotating wheel 32, the clamping piece 33 and the spring seat 34 are sequentially arranged in the housing 10 from top to bottom. The pull ring 20 is fixedly arranged at the upper end of the thumbwheel 31, and the pull ring 20 is used for driving the thumbwheel 31 to slide up and down. The magnet 40 is fixedly mounted in the holder 33. The housing 10 includes an upper housing 11 and a lower housing 12, and the upper housing 11 and the lower housing 12 may be connected by threads (internal threads on the lower housing 12 are not shown). The upper shell 11 is provided with a pull ring groove 111, and the pull ring 20 is arranged at the pull ring groove 111 and can slide up and down along the pull ring groove 111.

Referring to fig. 3, a mounting hole (not shown) is formed at the upper end of the thumb wheel 31 for mounting the pull ring 20. The lower end of the pressing wheel 31 is sleeved at the upper end of the rotating wheel 32 and is in rotary connection with the rotating wheel 32; the lower end of the rotating wheel 32 is sleeved at the upper end of the clamping piece 33 and is rotatably connected with the clamping piece 33. The lower end of the clamping member 33 has a clamping cavity 331, and the magnet 40 is disposed in the clamping cavity 331, for example, the outer diameter of the magnet 40 is equal to the diameter of the clamping cavity 331, so as to ensure that the magnet 40 is clamped in the clamping cavity 331. The lower end of the clamping piece 33 is connected with the spring seat 34, and the clamping piece 33 is further provided with a baffle ring 332, and a spring (not shown in the figure) is sleeved between the baffle ring 332 and the base of the spring seat 34.

Referring back to fig. 2, a first guide rod 112 is disposed on the inner wall of the upper housing 11. A first guide groove 311 is formed at the lower end of the thumb wheel 31 for accommodating the first guide bar 112. The rotating wheel 32 is provided with a second guiding groove 321 for accommodating the first guiding rod 112. The first guide bar 112 serves as a guide rail for the up-and-down sliding of the press wheel 31 and the wheel 32, and participates in controlling the rotation of the wheel 32.

Further, the lower end surface of the press wheel 31 is saw-tooth-shaped, the rotating wheel 32 is provided with a stop groove 322, and the lower end surface of the press wheel 31 and the end surface of the stop groove 322 are inclined surfaces. The lower end surface of the first guide rod 112 is also an inclined surface, and the lower end surface of the first guide rod 112 can be engaged with the inclined surface of the stop groove 322. When the pull rod 20 is pressed down, the inclined surface of the push wheel 31 forms a component force in the tangential direction of the rotating wheel 32, the component force enables the rotating wheel 32 to have a rotating trend, and when the first guide rod 112 slides out of the second guide groove 321 of the rotating wheel 32, the rotating wheel 32 rotates by a first angle, so that the lower end surface of the first guide rod 112 can be engaged with the stop groove 322; when the pull rod 20 is released, the push wheel 31 and the rotating wheel 32 have an upward movement reset tendency, the rotating wheel 32 contacts with the lower end surface of the first guide rod 112 when moving upward, the lower end surface of the first guide rod 112 is an inclined surface, and a component force is formed in the tangential direction of the rotating wheel 32, and the component force enables the rotating wheel 32 to rotate until the first guide rod 112 completely slides into the stop groove 322.

As shown in fig. 4, and referring to fig. 2, a second guiding rod 341 is disposed on an inner wall of the spring seat 34, and an upper end of the second guiding rod 341 is higher than an upper end of the body of the spring seat 34. The retainer ring 332 and the lower end 333 of the clamping member 33 are provided with a third guide groove 334 for accommodating the second guide rod 341, so that the clamping member 33 slides up and down along the second guide rod 341.

As shown in fig. 5A to 5D, and referring to fig. 2, the ICM manual trigger 100 operates as follows: when the patient feels uncomfortable, the patient first presses the pull ring 20 from the initial position (see fig. 5A) to the bottom (see fig. 5B) of the pull ring groove 111 (see fig. 1) to drive the press wheel 31 to slide down along the first guide rod 112 and drive the rotating wheel 32 to slide down and rotate (i.e. the first guide rod 112 is separated from the second guide groove 321 of the rotating wheel 32 and starts to slide into the stop groove 322 of the rotating wheel 32), at this time, the clamping piece 33 is driven by the rotating wheel 32 to compress the spring downward; next, the pull ring 20 is released (see fig. 5C), and the spring rebounds, so that the clamping member 33, the rotating wheel 32 and the pressing wheel 31 move upward until the rotating wheel 32 is caught by the first guide bar 112 (i.e., the first guide bar 112 slides completely into the stopper groove 322), at which time the magnet 40 approaches the lower end portion of the lower case 12, and the magnetic field of the lower end portion of the lower case 12 increases; the patient then brings the lower end of the lower housing 12 close to the implantation site of the ICM to trigger the ICM to record an event. After the event is recorded, the tab 20 is pressed down to the bottom of the tab slot 111 again (see fig. 5D), so as to drive the thumb wheel 31 to slide down along the first guiding rod 112 and drive the runner 32 to slide down and rotate (i.e. the first guiding rod 112 is separated from the stop slot 322 of the runner 32 and starts to slide into the second guiding slot 321 of the runner 32), at this time, the clamping member 33 is driven by the runner 32 to compress the spring downward; finally, the pull ring 20 is released, and the spring rebounds, so that the clamping member 33, the rotating wheel 32 and the push wheel 31 are reset (see fig. 5A), at this time, the magnet 40 is away from the lower end portion of the lower housing 12, and the magnetic field of the lower end portion of the lower housing 12 is weakened, and it is difficult to attract magnetic objects.

Further, as shown in fig. 2, the lower end surface of the lower housing 12 may be a sealing structure, and may further isolate the magnet 40 from contact with an external magnetic object (e.g., a coin, a key, etc.), so that the magnetic object is easily removed even though the lower end surface of the lower housing 12 is adsorbed.

It should be noted that the arrangement of the tab 20 is not necessary. The design of the pull ring 20 can facilitate the ICM manual trigger 100 to be hung on a key ring through the pull ring 20 when not in use at ordinary times, so as to be convenient to carry and place at fixed points, thereby avoiding losing. In an embodiment in which the tab 20 is not provided, the upper end of the thumb wheel 31 may be raised above the upper end surface of the upper housing 11, and the operation of the telescopic mechanism 30 may be accomplished by directly depressing and releasing the thumb wheel 31.

In summary, the design of the pull ring 20 and the telescopic mechanism 30 enables the magnet 40 to be telescopic in the housing 10, and when in use, the magnet 40 is close to the lower end of the lower housing 12, so as to provide a strong magnetic field for triggering the ICM for the lower end of the lower housing 12; the magnet 40 is spaced away from the lower end of the lower housing 12 when not in use so that the magnetic field strength at the lower end of the lower housing 12 is reduced, thereby preventing the ICM manual trigger 100 from accidentally attracting magnetic objects.

Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value. The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. An ICM manual trigger, comprising:

the shell comprises an upper shell and a lower shell, wherein the upper shell is connected with the lower shell through threads, and a first guide rod is arranged on the inner wall of the upper shell;

the telescopic mechanism is arranged in the shell and comprises a pressing wheel, a rotating wheel, a clamping piece and a spring seat, and the pressing wheel is installed on the first guide rod in a sliding mode; the lower end of the pressing wheel is sleeved at the upper end of the rotating wheel and is in rotating connection with the rotating wheel; the lower end of the rotating wheel is sleeved at the upper end of the clamping piece and is rotationally connected with the clamping piece; the lower end of the clamping piece is connected with the spring seat, and a spring is sleeved between the clamping piece and the spring seat;

and the magnet is fixedly arranged on the clamping piece.

2. The ICM manual trigger of claim 1, further comprising a pull ring fixedly disposed on an upper end of the thumb wheel and having a pull ring groove formed therein, the pull ring disposed at the pull ring groove.

3. The ICM manual trigger of claim 1, wherein an upper end of the thumb press is raised above an upper end surface of the upper housing.

4. The ICM manual trigger of claim 1, wherein the lower end surface of the thumb wheel is serrated, the runner is provided with a detent groove, and the lower end surface of the thumb wheel, the end surface of the detent groove, and the lower end surface of the first guide bar are sloped surfaces.

5. The ICM manual trigger of claim 1, wherein the clip has a clip cavity at a lower end thereof, the magnet being disposed within the clip cavity.

6. The ICM manual trigger of claim 5, wherein an outer diameter of the magnet is equal to a diameter of the gripping cavity.

7. The ICM manual trigger of claim 1, wherein the clip is provided with a stop ring and the spring is nested between the stop ring and the seat of the spring seat.

8. The ICM manual trigger of claim 7, wherein a second guide rod is disposed on an inner wall of the spring seat and an upper end of the second guide rod is higher than an upper end of the spring seat body.

9. The ICM manual trigger of claim 8, wherein a third guide groove is formed in the retainer ring and the lower end of the clip member, and the clip member slides up and down along the second guide bar through the third guide groove.

10. The ICM manual trigger of claim 1, wherein the lower end surface of the lower housing is a sealing structure.