CN104665844A

CN104665844A - Painless lancet

Info

Publication number: CN104665844A
Application number: CN201310634495.9A
Authority: CN
Inventors: 周文正
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-27
Filing date: 2013-11-27
Publication date: 2015-06-03

Abstract

The invention discloses a painless lancet. The painless lancet comprises a rack and a lancet body; the elastic acceleration of a leaf spring is increased to greatly reduce the time of the lancet body staying on the fingertip, and thus people cannot feel pain basically; the top end of the leaf spring is pre-tensioned, a fixed lancet clamp is used for clamping a one-off lancet, a clamping switch releases the leaf spring, and the depth of inserting into the fingertip is adjusted through a lancet pad in order to prevent from repeatedly inserting into the fingertip. With the adoption of the painless lancet, the pain of picking blood can be relieved, the one-off material can be reduced, and therefore, the cost can be decreased.

Description

Painless lancet

Technical field

The blood sampling lancet device used before the present invention relates to hemanalysis and disposable blood taking needle.

Background technology

At present in order to hemanalysis blood sampling, use the various lancet device from finger tip blood sampling, also invented in recent years and puncture needle is arranged on lancet device, gather the lancet device for carrying out the active force punctured simultaneously, as the lancet-release mechanism of 200680013721 Baeyer health cares, the piercing needle cartridge of 2006800141450 Panasonic Electric Equipment Industrial Co., Ltd, such lancet device utilizes one or more Compress Spring to carry out puncturing and pulling out puncture needle, and in order to the piercing needle cartridge also contact skin part being carried out together waste treatment of protecting from infection.

The puncture needle of said structure is arranged on lancet device, need entire length and the precision of the Compress Spring guaranteeing push rod natural place, as everyone knows, be difficult in general guarantee, and in order to the power adjusting acupuncture and pull out, the speed that its spring comes and goes is also unhappy, holdup time is long, can adjust elastic force on the surface, and real difficulty is very large, reduce pain key to be to reduce the holdup time, the raising of speed and the craspedodrome of lancet greatly can reduce pain; Release lancet when above lancet device also needs by both pressing when using, cause the psychentonia of those who are investigated also to increase sense of discomfort, simultaneously the puncture needle of said structure is changed extremely loaded down with trivial details, or can only single use, cause waste, strengthen Biohazard Waste treating capacity.For solving above technical problem, the invention provides a kind of Painless blood taking needle in conjunction with percussopunctator advantage.

The blood-letting medical apparatus and instruments that percussopunctator is also children's's pin, seven-star needle is Chinese tradition, pricker is arranged on long handle tip, can sting blood fast and pull out.

Summary of the invention

For solve above technical problem be mainly realize lancet use time those who are investigated substantially painless, reduce pain to greatest extent, the invention discloses a kind of painless lancet.

Painless lancet is made up of punch block and disposable lancet, wherein punch block by support body, sheet spring, hold pin folder, locking switch, folder reed, spacing spring, pincushion form, disposable lancet is made up of needle body, faller gill.Top have hold pin folder sheet spring bottom be connected with support body, the folder reed holding pin contained side resets and laterally fixes the disposable lancet that pin folder is held in loading, sheet spring draws in locking switch and anchors, press switch, pricker has ejected puncture fast, by the absorption of pincushion to elastic force, sheet spring secondary oscillation amplitude reduces, and avoids secondary puncture.

The disposable lancet that technical scheme 1 is made up of needle body and faller gill; bottom centre's means of spot welds faller gill of needle body; needle body is vertical with faller gill, and for lancet, faller gill shape with hold pin and sandwich mouth and adapt; for holding gripping of pin folder; when having the new disposable lancet of protection pin lid to push, used lancet will be pushed out, and process contacts without the need to hands; new and old lancet needle body is also contactless, avoids lancet needle body and infects.

Technical scheme 2 spring tops make holds pin folder, and hold pin and accompany certain elasticity, laterally two opening, the disposable lancet after using when new pin pushes exits; Folder reed is removable back and forth along sheet spring, and two opening laterally fixing lancet is closed in reset rear section, and by improving the elasticity of holding pin folder, the necessity of folder reed reduces, only for open punch block; Be connected with support body bottom sheet spring, the pincushion installed near pin hole bottom punch block support body, play and control the paracentesis depth of pricker and the effect of absorbing sheet spring restoring force, reducing tab spring oscillation amplitude, avoids repeated puncture; Locking switch is arranged on support body upper end, fastens the sheet spring of tension, presses switch during use, releasing piece spring; The open punch block of the painless lancet that comprehensive composition is overall above.

The open punch block of technical scheme 3 meets the structural requirement of painless thorn blood substantially, and for improving overall attractive in appearance and security insurance, scheme 3 adds monolithic case, and point left and right can two parts of folding, change disposable lancet and tension sheet spring when opening.

Technical scheme 4 is held pin folder entirety and is formed certain angle with sheet spring, and the nearly straight-line trajectory that the size of angle ejects bottommost with sheet spring is as the criterion, between 0-15 degree, and bend consistent with holding pin angle degree of pin hole position support body.

Accompanying drawing explanation

Fig. 1, open lancet punch block sketch

Fig. 2, disposable lancet sketch

Fig. 3, closed lancet shell sketch

Fig. 4, hold pin folder and folder reed sketch

Fig. 5, pincushion sketch

In figure: 1, support body 2, sheet spring 3, hold pin folder 4, folder reed 5, needle body 6, faller gill 7, locking switch 8, pincushion 9, pin hole 10, Compress Spring 11, left outside shell 12, right casing 13, pin lid

Detailed description of the invention

Below in conjunction with specific embodiment, set forth the present invention further.

Open lancet punch block sketch shown in Fig. 1, in figure, the pin folder 3 of holding at sheet spring 2 top is fixedly connected with sheet spring, folder reed 4 can move around along sheet spring, laterally fixing disposable lancet, be connected with support body 1 bottom sheet spring 2, locking switch 7 is installed in support body 1 upper end, locking switch 7 connects Compress Spring 10, with hands, sheet spring 2 is drawn in locking switch 7, press switch, sheet spring ejects and rebounds to the pincushion 8 on pin hole 9 limit.

The sketch of disposable lancet shown in Fig. 2, in figure, needle body 5 is vertically welded on the central point of faller gill 6, and the disposable lancet after pre-sterilization thrusts pin lid 13 to be placed.

The lancet of closure shown in Fig. 3 shell sketch, in figure, left outside shell 11 and right casing 12 can foldings, and open shell, install disposable lancet, tensioning sheet spring, pulls out pin lid, covers shell and both completes preparation work, can carry out having punctured.

Hold pin folder and folder reed sketch shown in Fig. 4, in figure, the pin folder 3 of holding at sheet spring top has elasticity, and fixing disposable lancet after the folder reed 4 on limit moves reset along sheet spring, folder reed is mainly used in the security insurance of open punch block.

The sketch of pincushion shown in Fig. 5, pincushion 8 is installed on pin hole 9 limit in figure bottom punch block, pincushion 8 controls the degree of depth of puncture, the elastic force of simultaneously stability sheet spring, the oscillation amplitude of reducing tab spring, during secondary resilience and finger tip just do not contact, avoid repeated puncture, pincushion is made by rubber or other elastomeric materials, high slice spring certain distance.

The present invention, by the acceleration of motion of improved sheet spring and disposable lancet, greatly reduces puncture needle in the finger tip holdup time, does not even feel puncture, and its process terminates, and has staggered pressing and puncture time simultaneously, reduces stress, subtracts successful bitterly; Change disposable lancet extremely convenient, reduce again the amount of Biohazard Waste, reduce use cost.Crust contact can't bring infection, and concomitant disinfection support body pin hole and skin contact effectively can overcome unique shortcoming of the present invention.

Illustrate to be not used in and limit the scope of the invention, because its embodiment has multiple, technical staff can do various change to the present invention, increases and reduce the described scope that these equivalent form of values are equal to the application's claims.

Claims

1. painless lancet, be made up of punch block and disposable lancet, described punch block is made by top and holds pin folder, the sheet spring of disposable lancet laterally fixed by mounting clamp reed, there is locking switch upper end, there is the support body of pin hole and pincushion lower end, connect to form bottom sheet spring with in the middle part of support body, be primarily characterized in that: disposable lancet is installed on described spring top, fixed clamp is pressed from both sides by holding pin, bottom buckles into the sheet spring tensioning be connected in the middle part of support body the potential energy that locking switch forms resilience, release-push, sheet spring completes puncture under elastic reaction, pincushion bottom support body controls paracentesis depth, and absorb restoring force and avoid secondary puncture.

2. painless lancet according to claim 1, it is characterized in that disposable lancet is made up of needle body and faller gill, needle body is vertically fixedly connected on faller gill center, and for skin puncture, to sandwich mouth consistent with holding pin for the shape of faller gill, the length of needle body is by the degree of depth of thrusting skin, and the pressure of pincushion is high, embeds the height of faller gill and to progressively increase decision.

3. painless lancet according to claim 1, it is characterized in that holding pin folder by resilient clamp disposable lancet, folder reed laterally fixing lancet forms security insurance.

4. painless lancet according to claim 1, is characterized in that profile has open punch block and closed shell two kinds, and closed shell is made up of left and right two parts shell and can folding.

5. painless lancet according to claim 1, is characterized in that the pin folder of holding on sheet spring top forms 0-15 degree angle, pin hole position, support body lower end respective curved with sheet spring extended line.