CN1217942A - Semiautomatic negative pressure suction bioassay syringe - Google Patents

Semiautomatic negative pressure suction bioassay syringe Download PDF

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Publication number
CN1217942A
CN1217942A CN 97118898 CN97118898A CN1217942A CN 1217942 A CN1217942 A CN 1217942A CN 97118898 CN97118898 CN 97118898 CN 97118898 A CN97118898 A CN 97118898A CN 1217942 A CN1217942 A CN 1217942A
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CN
China
Prior art keywords
syringe
negative pressure
lock
bioassay
pressure suction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 97118898
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Chinese (zh)
Inventor
韩新巍
王建平
方桂远
陈长英
谢静
刘保山
Original Assignee
韩新巍
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 韩新巍 filed Critical 韩新巍
Priority to CN 97118898 priority Critical patent/CN1217942A/en
Publication of CN1217942A publication Critical patent/CN1217942A/en
Pending legal-status Critical Current

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Abstract

A semi-automatic negative-pressure sucking injector for biopsy features that a stepped locker is fixed to internal core of ordinary injector in order to hold up the negative-pressure sucking state as the internal core of injector is locked by the stepped locker when it is drawn out by a certain distance, resulting in saving labour and high operation correctness.

Description

Semiautomatic negative pressure suction bioassay syringe
The invention belongs to a kind of injector for medical purpose.
The various puncture needles of clinical practice all will can be finished suction and the tissue and the cell biopsy of liquid by means of the negative pressure pumpback of syringe.Use ordinary syringe, the aspiration phases that the operator must both hands holds syringe all the time and keeps exerting oneself on the contrary, influence the accurate operation of puncture needle, abecedarian even at all can't carry out relevant operation is as left, right rotation (180 °-360 °) and the slow inserting needle (360 ° of inserting needle 1-2mm of every rotation when cutting biopsy) while rotating.Should keep the accurate again inserting needle of negative pressure, operation easier is big, this is the main cause of puncture failure, carry out the puncture suction (as hepatic cyst, cyst of kidney, ovarian cyst, abscess etc.) of liquid, puncture needle enters in the blister cavities must keep the degree of depth and invariant position, when using the ordinary syringe suction, operator's both hands are negative pressure-pumping firmly on the contrary, inevitable advancing or drop back of pin taken place, and change the degree of depth and position, and even syringe needle deviates to cause puncture failure from focus.Carry out big quantity of fluid suction (as hydrothorax, ascites), the operator points the fatigue of very easily refusing to budge, and needs to have a rest to treat just can continue operation behind the hand sensory recovery, not only requires great effort but also time-consuming.In addition, medicine injection and transfusion are the main means of treatment disease, and the accurate work before medicine dissolution and suction injection and the transfusion is wasted time and energy.
The object of the present invention is to provide a kind of syringe that can keep the negative pressure-pumping state automatically.
For reaching above-mentioned purpose, the technical solution used in the present invention is: a kind of semiautomatic negative pressure suction bioassay syringe, comprise syringe, and on plunger, be equiped with stepped lock, lock one end and inner core fix.
Lock is made by strip spring leaf or spring wire with certain degree of hardness.
Lock can have 1-3 ladder.
Use the present invention and cooperate aspiration biopsy, proceed to the desired depth of target site when piercing needle after, disposable pumpback syringe becomes negative pressure state and locks with lock, operator's both hands can free from syringe fully, attentively be used for the operation of puncture needle, bimanualness inserting needle, rotation, adjustment angle and orientation and the withdraw of the needle are handy, make aspiration biopsy become accurately, convenient and laborsaving.Use the firmly negative pressure pumpback that continues of having eliminated both hands when the present invention carries out the liquid suction, both be beneficial to the fixing of needle position, avoided the fatigue paralysis of hand again, suction becomes easily and simple, and success rate improves greatly, operation becomes time saving and energy saving, in addition, utilize the present invention to carry out the suction of injectable drug, not only laborsaving, and can extract hands out and do other thing simultaneously, greatly increase work efficiency.
Further specify the present invention below in conjunction with accompanying drawing and by embodiment:
Accompanying drawing is depicted as structural representation of the present invention.
Embodiment: 1 is syringe in the accompanying drawing, 2 is plunger, 3 is lock, lock 3 is stepped, make with strip spring leaf or spring wire with certain degree of hardness, whole stepped, according to the size difference of syringe 1-3 ladder can be arranged, an end of lock 3 (the inner or outer end) and plunger fix.When carrying out the suction of aspiration biopsy or liquid, extract plunger out certain-length, lock is upspring, and ladder is stopped by syringe end and keeps, thereby the negative pressure state of syringe is kept.

Claims (3)

1, a kind of semiautomatic negative pressure suction bioassay syringe comprises syringe (1), it is characterized in that, is equiped with stepped lock (3) on plunger (2), and lock (3) one ends and inner core (2) fix.
2, syringe as claimed in claim 1 is characterized in that, lock (3) is made by strip spring leaf or spring wire with certain degree of hardness.
3, syringe as claimed in claim 1 or 2 is characterized in that, lock (3) can have 1-3 ladder.
CN 97118898 1997-11-15 1997-11-15 Semiautomatic negative pressure suction bioassay syringe Pending CN1217942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97118898 CN1217942A (en) 1997-11-15 1997-11-15 Semiautomatic negative pressure suction bioassay syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 97118898 CN1217942A (en) 1997-11-15 1997-11-15 Semiautomatic negative pressure suction bioassay syringe

Publications (1)

Publication Number Publication Date
CN1217942A true CN1217942A (en) 1999-06-02

Family

ID=5175051

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 97118898 Pending CN1217942A (en) 1997-11-15 1997-11-15 Semiautomatic negative pressure suction bioassay syringe

Country Status (1)

Country Link
CN (1) CN1217942A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007028296A1 (en) * 2005-09-09 2007-03-15 Shandong Weigao Group Medical Polymer Co., Ltd A safety syringe
CN104906649A (en) * 2014-03-11 2015-09-16 泰尔茂株式会社 Liquid administration device
CN105496471A (en) * 2016-01-26 2016-04-20 陆海鹤 Pneumatic cell collector
US10857301B2 (en) 2016-09-20 2020-12-08 Endospace Corporation Syringe with position locking plunger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007028296A1 (en) * 2005-09-09 2007-03-15 Shandong Weigao Group Medical Polymer Co., Ltd A safety syringe
CN104906649A (en) * 2014-03-11 2015-09-16 泰尔茂株式会社 Liquid administration device
CN104906649B (en) * 2014-03-11 2019-08-30 泰尔茂株式会社 Liquid launches utensil
CN105496471A (en) * 2016-01-26 2016-04-20 陆海鹤 Pneumatic cell collector
US10857301B2 (en) 2016-09-20 2020-12-08 Endospace Corporation Syringe with position locking plunger

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PB01 Publication
C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication