CN203898314U

CN203898314U - Electromagnetic drive lancet device

Info

Publication number: CN203898314U
Application number: CN201420134121.0U
Authority: CN
Inventors: 熊昕飏
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-25
Filing date: 2014-03-25
Publication date: 2014-10-29
Anticipated expiration: 2024-03-25

Abstract

The utility model discloses an electromagnetic drive lancet device. The electromagnetic drive lancet device consists of a power supply, a control circuit, an electromagnetic drive assembly, a lancet gripper, a return spring, a base, a shell and the like. The electromagnetic drive assembly comprises a permanent magnet and a coil, wherein the coil produces an electromagnetic field after the coil is electrified and the electromagnetic field interacts with the magnetic field of the permanent magnet to produce electromagnetic force. The electromagnetic force drives a lancet installed on the lancet gripper to do a sectioning motion along an axis to complete a sectioning action.

Description

The lancet device of Electromagnetic Drive

Technical field

This utility model is related to diagnosis to be needed and the lancet device of extraction blood.

Background technology

For the patients such as diabetes, for maintaining the stable of blood sugar for human body, need to check termly its blood sugar content, accordingly insulin injection.Carry out blood test and need to use lancet device.Lancet device is a kind of device that dissects skin formation wound at positions such as finger or ear-lobes that completes in blood drawing process.At present, be mainly divided into two large classes for patient's lancet device, a class is that patient directly takes lancet, dissects by hand skin; Another kind of is release drive lancet device by spring, drives lancet to dissect skin.First kind mode, for there is no trained patient, is used more difficultly, and it is longer to dissect process, and patient's pain is stronger; Equations of The Second Kind mode patient does not need the specialized training just can straightforward manipulation, and it is very short to dissect process, and patient's pain is lower.Therefore, the lancet device of Equations of The Second Kind mode is relatively applicable to the needs of patient oneself detection blood constituent.Equations of The Second Kind mode can also be divided into disposable lancet device and nonexpondable lancet device.Disposable lancet device, does not need Compress Spring before use, and still, a device can only use once, can cause waste; Nonexpondable lancet device needs Compress Spring before use, uses alone for old patient, very inconvenient.

Summary of the invention

The purpose of this utility model is to provide a kind of by the power-actuated lancet device of electromagnetism, the needs that carry out blood constituent inspection to adapt to old patient oneself.This device is characterised in that the physical fitness requirement of user very low, operates very simply, and meanwhile, under the effect of electromagnetic force, lancet rapid movement, dissects process very of short duration, greatly reduces the pain that the process of dissecing produces.This device adopts the working method of changing lancet, has both avoided the generation of infecting, and simultaneously because the cost of lancet is extremely low, and lancet driving device can be reused for a long time, has greatly saved the cost that chronic carries out blood constituent detection.

This utility model is made up of parts such as power supply and control circuit, electromagnetic drive component, lancet clamper, returning spring, pedestal and shells.Electromagnetic drive component includes permanent magnet and coil, and one of permanent magnet and coil are fixing, and one can be along axial-movement.Fixing parts are fixedly mounted in pedestal, and the parts of motion and lancet clamper connect firmly, under electromagnetic force or the effect of returning spring elastic force, and can be along axial-movement.Its work process is: after coil electricity, generate an electromagnetic field, the magnetic field interaction of this electromagnetic field and permanent magnet, produces electromagnetic force.This electromagnetic force is dissectd drive lancet to move along axis, completes and dissects action.The power supply of coil is provided and is controlled by power supply and the control circuit of this device.Power supply and control circuit comprise discharge cock, trigger button, ac-dc converter circuit composition.In the time that discharge cock is closed, press trigger switch, coil electricity, realizes the driving of lancet.After using, discharge cock is disconnected, avoided being not intended to press trigger button and the lancet action that causes, thereby avoided the generation of mean no harm.

In this utility model, disposable lancet is the consumptive material using with this matched with devices.Every piece of disposable lancet is all enclosed with a sterile sheath, and many lancets with sterile sheath are packaging together.When use, the discharge cock in power supply and control circuit, under off-state, is put into lancet clamper locking by lancet handle, then takes off lancet sterile sheath.Then, shell installation end is contained on pedestal, the lancet port of export in shell is pressed in and gets blood position, now, get final product closed discharge cock, press trigger button realization and dissect action, on the skin of getting blood position, form wound, conveniently get blood.Dissecing the degree of depth of otch can also be indicated and be regulated by the scale of shell installation end.

Brief description of the drawings

The side view of Fig. 1 Electromagnetic Drive lancet device;

Fig. 2 power supply and control circuit theory diagram;

Fig. 3 disposable lancet and sterile sheath schematic diagram thereof.

Detailed description of the invention

Fig. 1 represents an embodiment of this Electromagnetic Drive lancet device.This lancet device is provided with a pedestal 101, and this pedestal comprises a cavity 201 that power supply and control circuit are housed, and discharge cock 301 and trigger button 302 are arranged on respectively on the appropriate location of cavity 201.Coil 102 is arranged in the coil bore 202 of pedestal, and permanent magnet 103 is arranged in the upper end permanent magnet mount pad 104 of lancet clamping device 108, and the middle part of lancet clamping device has a cylindrical structural 105 to do axially-movable along axle sleeve 106.Between axle sleeve 106 and lancet clamping device upper end 104, returning spring 111 is installed.The bottom of lancet clamping device is a clamper that is made up of lancet three unguiculuses 110 and sleeve 109.In the time that needs clamp lancet, available hands is upwards stirred sleeve 109, sleeve 109 is in the time moving up, discharge gradually 110, three unguiculuses 110 of three unguiculuses and open, put into lancet 401 handles, then, stir sleeve 109 downwards with hands, sleeve 109 makes three unguiculuses 110 shrink while moving down, lancet 401 is installed fixing.After lancet 401 is fixing, the sterile sheath 402(on removable lancet is shown in Fig. 3), crust of the device 107 is screwed on the installation screw thread of pedestal 101.On pedestal 101, be carved with instruction lancet 401 and thrust the scale of the degree of depth, screw in the length difference of pedestal by shell, the difference that can control lancet 401 is thrust the degree of depth, gets the needs of blood to adapt to different crowd, different parts.

Fig. 2 represents the power supply of this electromagnetic actuator device and the theory diagram of control circuit.Power supply and control circuit comprise transformator 305, discharge cock 301 and trigger button 302, full-wave rectifying circuit 303, filter capacitor 304.Wherein, transformator converts high pressure (as 220V) alternating current to certain low pressure (as 48V) alternating current, and full-wave rectifying circuit converts alternating current to unidirectional all-wave pulsation electricity, then is converted into approximate unidirectional current by filter capacitor.When discharge cock closure, press trigger button and can power to coil 102.

Fig. 3 is the lancet assembly with sterile sheath.Lancet 401 overcoats have sterile sheath 402, so that lancet is avoided the infection of antibacterial.

The groundwork process of the present embodiment is: detect need to get blood time when patient carries out self-blood constituent, patient takes out the lancet 401 with sterile sheath on the other hand, and another hands is upwards stirred sleeve 109, sleeve 109 is moving up, discharge gradually 110, three unguiculuses 110 of three unguiculuses and open, put into lancet 401 handles, then, stir sleeve 109 downwards, sleeve 109 moves down, so, three unguiculuses 110 shrink, and lancet 401 are installed fixing.After lancet 401 is fixing, i.e. sterile sheath 402 on removable lancet 401.Again crust of the device 107 is screwed on the installation screw thread of pedestal 101.The length difference that screws in pedestal 101 by shell 107, the difference that can control lancet 401 is thrust the degree of depth, gets the needs of blood to adapt to different crowd, different parts.Then, access power supply, the blood position skin of getting that the lower end of crust of the device and process are disinfected suitably compresses, closed discharge cock 301, then, press trigger switch 302, at this moment, coil 102 is switched on, and lancet 401 is under electromagnetic force, complete fast to dissect along axis and move, realize skin and dissect and form wound.After having dissectd, disconnect discharge cock 301, now, lancet clamping device 108 automatically reverts to original position under the effect of returning spring 111.Screw off shell 107, upwards stir sleeve 109, take out and used lancet 401, complete and once sting blood process.

Claims

1. a lancet device for the use of taking a blood sample, is characterized in that: be made up of parts such as power supply and control circuit, electromagnetic drive component, lancet clamper, returning spring, pedestal and shells; Electromagnetic drive component includes permanent magnet and coil, after coil electricity, generates an electromagnetic field, and the magnetic field interaction of this electromagnetic field and permanent magnet, produces electromagnetic force; The lancet of this electromagnetic force drive installation on lancet clamper dissects and moves along axis, completes the action of dissecing skin.

2. lancet device claimed in claim 1, is characterized in that comprising one and can realize the handling of lancet by the movement of sleeve by three unguiculuses and a lancet clamper that sleeve forms, and has met the needs of the life-time service of lancet driving device.

3. lancet device claimed in claim 1, is characterized in that adopting the lancet with sterile sheath, has avoided cross infection.