CN2265161Y - Thin needle puncture device with sustained negative pressure - Google Patents
Thin needle puncture device with sustained negative pressure Download PDFInfo
- Publication number
- CN2265161Y CN2265161Y CN 96200118 CN96200118U CN2265161Y CN 2265161 Y CN2265161 Y CN 2265161Y CN 96200118 CN96200118 CN 96200118 CN 96200118 U CN96200118 U CN 96200118U CN 2265161 Y CN2265161 Y CN 2265161Y
- Authority
- CN
- China
- Prior art keywords
- needle
- negative pressure
- needle tubing
- card
- utility
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a thin needle puncture device with sustained negative pressure. The utility model is composed of a needle head, a needle tube and a needle pin. The utility model is characterized in that a side edge of the needle pin is provided with a notch matched with a card device arranged on the needle tube, the card device is sheathed on the needle tube and is clamped with the outer periphery of the needle tube, and a hem of the card device is corresponding to the notch. The needle pin is caused to be fixed, sufficient and sustained negative pressure is kept in the needle tube to suck enough pathologic change cells, and thus a satisfied smear is made.
Description
This utility model relates to medical apparatus and instruments, refers to a kind of fine needle aspiration device with continuous negative pressure especially.
The sick cell of draw sufficient is the crux of cytodiagnosis success, and can the disease that be drawn to capacity hand over cell, in accurate location and the needle tubing enough negative pressure is arranged when depending on puncture.And domestic generally adopt do the method that fine needle is drawn with free-hand operating syringe, exist the operation effort, can not be drawn to the problem of capacity sick cell.
For overcoming the free-hand shortcoming that pin is inhaled operation of doing, FRANZON has invented the syringe metal handle (SYRINGER HOLDER) of fine needle absorption usefulness, makes the operator aspirate (see figure 5) with a manual operating metal handle, uses fixedly diseased region of another hands.Yet when doing the pin suction, must continue tractive syringe, fatiguability scatter operation person's attention with this apparatus, and exist far apart from diseased region, and influence the problem of operator's feel, make the suction diseased region inaccurate, and cost an arm and a leg, fail in problems such as China promote the use of.
The purpose of this utility model is to provide a kind of can making to keep sufficient in the needle tubing and negative pressure that continue, has accurate location, feel sensitivity, cheap and help producing disposable fine needle aspiration device with continuous negative pressure.
The purpose of this utility model is achieved in that a kind of fine needle aspiration device with continuous negative pressure is made up of syringe needle, needle tubing, pintle, it is characterized in that: an incline of pintle be provided with needle tubing on the breach that is complementary of card-type device, this card-type device is linked on the needle tubing, and fasten with the outer peripheral edges of needle tubing, and the flanging of card-type device and above-mentioned breach adapt.
Advantage of the present utility model is: need be with handing continuous tractive syringe, vacuum magnitude in the needle tubing is by the control of the breach on the pintle, make and keep sufficient in the needle tubing and negative pressure that continue, the disease that is drawn to capacity is handed over cell, make satisfied smear, shortened operator's distance with force and pin suction position, help accurate location, the sensitivity thoughts and feelings of performance finger, fully realize puncture needle and enter the resistance that disease is handed over the position, help judging lesion nature, this perforator is with low cost, technology is simple, help producing plastic injector for temporary use producer and produce in batches, easy to utilize.
Concrete structure of the present utility model further specifies by following examples and accompanying drawing thereof:
Fig. 1, be this utility model structural representation;
Fig. 2, be this utility model card-type device decomposition of movement figure;
Fig. 3, be this utility model embodiment (one);
Fig. 4, be this utility model embodiment (two);
Fig. 5, be the prior art sketch map.
Referring to Fig. 1-2, the fine needle aspiration device with continuous negative pressure is by syringe needle 1, needle tubing 2, pintle 3 is formed, an incline of pintle 3 be provided with needle tubing 2 on the breach 31 that is complementary of card-type device 4, this breach is the chamfer triangle.Have a through hole 41 on the card-type device 4, and be linked in the upper end of needle tubing 2, and fasten, and the flanging 42 of card-type device 4 adapts with breach on the pintle 3, plays fixedly pintle 3 with the outer peripheral edges of needle tubing 2 by this through hole 41.Because flanging 42 has certain elasticity, breach on the pintle 3 is the chamfer triangle, so pulling pintle 3 is upwards than being easier to, and make and produce enough negative pressure in the needle tubing 2, make disease hand over cell to be inhaled into automatically in the needle tubing 2, gently draw pintle 3 along up time or counter clockwise direction half-twist then, the breach 31 on the pintle 3 just breaks away from card-type device 4, bounces back to smoothly in the needle tubing 2.
Referring to Fig. 3-4,, between needle tubing 2 and syringe needle 1, be provided with three-way cock 5 for this practical another embodiment, close three-way cock 5 during puncture, make to have enough negative pressure in the needle tubing 2 with the sick cell of handing over of automatic suction, after the suction, open three-way cock 5, withdraw from syringe needle and get final product.
These practical characteristics with accuracy, sensitivity, lightweight flexible are so be more suitable for the puncture absorption work of each interior internal organs of the interior depths of body and littler pathology.
Claims (3)
1, a kind of fine needle aspiration device with continuous negative pressure is made up of syringe needle, needle tubing, pintle, it is characterized in that: an incline of pintle be provided with needle tubing on the breach that is complementary of card-type device, this card-type device is linked on the needle tubing, and fasten with the outer peripheral edges of needle tubing, and the flanging of card-type device and above-mentioned breach adapt.
2, the fine needle aspiration device with continuous negative pressure according to claim 1, it is characterized in that: the breach on the above-mentioned card-type device is the chamfer triangle.
3, the fine needle thorn thorn device with continuous negative pressure according to claim 1 is characterized in that: be provided with three-way cock between needle tubing and syringe needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96200118 CN2265161Y (en) | 1996-01-02 | 1996-01-02 | Thin needle puncture device with sustained negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96200118 CN2265161Y (en) | 1996-01-02 | 1996-01-02 | Thin needle puncture device with sustained negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2265161Y true CN2265161Y (en) | 1997-10-22 |
Family
ID=33886792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96200118 Expired - Lifetime CN2265161Y (en) | 1996-01-02 | 1996-01-02 | Thin needle puncture device with sustained negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2265161Y (en) |
-
1996
- 1996-01-02 CN CN 96200118 patent/CN2265161Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |