CN210023207U

CN210023207U - Injection needle melting device

Info

Publication number: CN210023207U
Application number: CN201920203579.XU
Authority: CN
Inventors: 李恩波
Original assignee: Guizhou Vanward Ecological Environmental Protection Co Ltd
Current assignee: Guizhou Vanward Ecological Environmental Protection Co Ltd
Priority date: 2019-02-15
Filing date: 2019-02-15
Publication date: 2020-02-07
Anticipated expiration: 2029-02-15

Abstract

The utility model relates to a syringe needle fusion device, include: the power supply module comprises a shell provided with a cavity, and a power supply module, an upper electrode, a lower electrode and a circuit board which are arranged in the shell; the upper end of the shell is provided with a melting hole communicated with the containing cavity; the upper electrode is provided with a through hole for penetrating the injection needle, is fixed on the inner side of the cavity of the shell and is positioned at the lower end of the melting hole; the lower electrode is fixed on the inner side of the cavity of the shell and positioned on the opposite side of the upper electrode, and the lower electrode and the upper electrode are arranged at intervals. After the injection needle is used, the injection needle is inserted between the upper electrode and the lower electrode, and the upper electrode and the lower electrode are short-circuited to form high temperature, so that the injection needle is melted. The utility model discloses simple structure, reasonable in design, the practicality is strong, can widely popularize in market.

Description

Injection needle melting device

Technical Field

The utility model relates to a melting device especially relates to an injection needle melting device.

Background

At present, the injection needles in hospitals are intensively accumulated and then uniformly treated after being used, but the used injection needles cannot be immediately treated, so that the injection needles can be repeatedly used due to misoperation, and cross infection or disease transmission is easily caused.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an injection needle melting device.

The technical scheme of the utility model is that:

an injection needle melting apparatus comprising: the power supply module comprises a shell provided with a cavity, and a power supply module, an upper electrode, a lower electrode and a circuit board which are arranged in the shell; the upper end of the shell is provided with a melting hole communicated with the containing cavity; the upper electrode is provided with a through hole for penetrating the injection needle, is fixed on the inner side of the cavity of the shell and is positioned at the lower end of the melting hole; the lower electrode is fixed on the inner side of the cavity of the shell and positioned on the opposite side of the upper electrode, and the lower electrode and the upper electrode are arranged at intervals; the circuit board comprises a voltage detector, an MOS tube control loop electrically connected with the voltage detector, and an MOS tube electrically connected with the MOS tube control loop; the MOS tube is an N-type MOS tube, the grid electrode of the MOS tube is electrically connected with the MOS tube control loop, the source electrode of the MOS tube is electrically connected with the negative electrode of the power supply assembly, and the drain electrode of the MOS tube is electrically connected with the upper electrode; the lower electrode is electrically connected with the positive electrode of the power supply assembly; the upper electrode is electrically connected with the negative electrode of the power supply component; the voltage detector is connected with the MOS tube in parallel.

The further technical scheme is as follows: the melting hole is an inverted horn hole.

Compared with the prior art, the utility model the technical effect be: a syringe needle melts the device, the syringe needle is inserted between upper electrode, lower electrode after using up, upper electrode, form the high temperature after the lower electrode short circuit, thus melt the syringe needle, at the same time, use the voltage detector to detect the voltage of both ends of upper electrode, lower electrode and send the detected signal to the control circuit of MOS pipe, thus control the make-and-break of MOS pipe; after short circuit, the voltage between the upper electrode and the lower electrode is reduced, when the voltage is reduced to a set value, the MOS tube is disconnected to avoid the circuit from being burnt out, when the voltage is increased to the set value, the MOS tube is opened, and the short circuit between the upper electrode and the lower electrode generates high temperature to melt the injection needle, so that the injection needle is prevented from being reused, and the infection of diseases is reduced.

The utility model discloses simple structure, reasonable in design, the practicality is strong, can widely popularize in market. The invention is further described with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is an exploded view of an injection needle melting device according to the present invention;

fig. 2 is a side view of an injection needle melting apparatus according to the present invention;

fig. 3 is a schematic circuit diagram of the injection needle melting device according to the present invention.

Reference numerals

10 melting device 1 case

11 chamber 12 fusion hole

2 Power module 3 Upper electrode

31 through hole 4 lower electrode

5 Circuit Board 51 Voltage Detector

52 MOS tube control loop 53 MOS tube

Detailed Description

In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the schematic drawings, but not limited thereto.

As shown in fig. 1 and 2, an injection needle melting apparatus 10 includes: a casing 1 provided with a cavity 11, and a power module 2, an upper electrode 3, a lower electrode 4, and a circuit board 5 provided in the casing 1. The upper end of the shell 1 is provided with a melting hole 12 communicated with the containing cavity 11, the upper electrode 3 is provided with a through hole 31 for passing through an injection needle, the through hole is fixed on the inner side of the containing cavity 11 of the shell 1 and is positioned at the lower end of the melting hole 12, the lower electrode 4 is fixed on the inner side of the containing cavity 11 of the shell 1 and is positioned at the opposite side of the upper electrode 3, and the circuit board 5 is arranged between the lower electrode 4 and the upper electrode 3 at intervals and is fixed on the inner wall of the containing.

Preferably, the melting hole 12 is an inverted bell-shaped hole.

When the injection needle is melted, the injection needle is inserted from the bell-shaped hole and is connected to the upper electrode 3 and the lower electrode 4 to short-circuit the entire circuit, so that the injection needle is melted at a high temperature between the upper electrode 3 and the lower electrode 4, and the injection needle is deformed after being heated at a high temperature, and thus cannot be reused.

As shown in fig. 3, the circuit board 5 includes a voltage detector 51, a MOS transistor control circuit 52 electrically connected to the voltage detector 51, and a MOS transistor 53 electrically connected to the MOS transistor control circuit 52. The MOS transistor 53 is an N-type MOS transistor, a gate of the MOS transistor 53 is electrically connected to the MOS transistor control circuit 52, a source is electrically connected to the negative electrode of the power supply module 2, and a drain is electrically connected to the upper electrode 3. The lower electrode 4 is electrically connected to the positive electrode of the power module 2, the upper electrode 3 is electrically connected to the negative electrode of the power module 2, and the voltage detector 51 is connected in parallel to the MOS transistor 53.

After the injection needle is inserted into the upper electrode 3 and the lower electrode 4 to cause short circuit, the voltage between the upper electrode 3 and the lower electrode 4 is reduced, when the voltage is reduced to a set value, the MOS tube 53 is disconnected to avoid the circuit from being burnt out, when the voltage is increased to the set value, the MOS tube 53 is opened, the short circuit between the upper electrode 3 and the lower electrode 4 generates high temperature to melt the injection needle, so that the injection needle is prevented from being reused, and the infection of diseases is reduced.

Specifically, by using the reverse phase ratio of the drain voltage and the drain current when the MOS tube 53 is turned on, the MOS tube control loop 52 controls the drain electrode of the MOS tube 53 to be turned on continuously when the drain voltage is large, and the drain voltage is repeatedly turned on at high speed from hundreds of Hz to thousands of Hz when the drain voltage is small, so that the whole circuit is effectively protected from being burned out, and meanwhile, a high-temperature melting injection needle can be ensured.

The technical content of the present invention is further described by the embodiments only, so as to facilitate the reader to understand more easily, but not to represent that the embodiments of the present invention are limited only to this, any technical extension or re-creation according to the present invention is protected by the present invention, and the protection scope of the present invention is subject to the claims.

Claims

1. An injection needle melting apparatus, comprising: the power supply module comprises a shell provided with a cavity, and a power supply module, an upper electrode, a lower electrode and a circuit board which are arranged in the shell; the upper end of the shell is provided with a melting hole communicated with the containing cavity; the upper electrode is provided with a through hole for penetrating the injection needle, is fixed on the inner side of the cavity of the shell and is positioned at the lower end of the melting hole; the lower electrode is fixed on the inner side of the cavity of the shell and positioned on the opposite side of the upper electrode, and the lower electrode and the upper electrode are arranged at intervals; the circuit board comprises a voltage detector, an MOS tube control loop electrically connected with the voltage detector, and an MOS tube electrically connected with the MOS tube control loop; the MOS tube is an N-type MOS tube, the grid electrode of the MOS tube is electrically connected with the MOS tube control loop, the source electrode of the MOS tube is electrically connected with the negative electrode of the power supply assembly, and the drain electrode of the MOS tube is electrically connected with the upper electrode; the lower electrode is electrically connected with the positive electrode of the power supply assembly; the upper electrode is electrically connected with the negative electrode of the power supply component; the voltage detector is connected with the MOS tube in parallel.

2. An injection needle melting apparatus according to claim 1, wherein the melting hole is an inverted trumpet hole.