CN204542230U - Cell pathology detection puncture needle - Google Patents
Cell pathology detection puncture needle Download PDFInfo
- Publication number
- CN204542230U CN204542230U CN201520243766.2U CN201520243766U CN204542230U CN 204542230 U CN204542230 U CN 204542230U CN 201520243766 U CN201520243766 U CN 201520243766U CN 204542230 U CN204542230 U CN 204542230U
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- CN
- China
- Prior art keywords
- negative pressure
- pressure cavity
- puncture needle
- piston
- malleation chamber
- 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 - Fee Related
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- Sampling And Sample Adjustment (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a kind of cell pathology detection puncture needle, it is provided with malleation chamber and negative pressure cavity in housing, is installed on piston respectively, is connected to piston rod above two-piston in malleation chamber and negative pressure cavity, and the upper end of two-piston bar is installed on feather key respectively; The feather key be positioned on the upside of malleation chamber is connected with extension spring, and the feather key be positioned on the upside of negative pressure cavity is connected with top spring; Housing lower end is provided with a needle stand, and this needle stand is fixed with puncture needle; Negative pressure cavity lower end one is aspirated switch and is communicated with needle stand, and lower end one waste cock in malleation chamber communicates with needle stand.This utility model only needs control and suck switch and waste cock can reach absorption and the discharge of cell in operation, convenient to operation, efficiency is higher, avoids puncture needle position in operation and is shifted, and then ensure that the accuracy of cell sample site.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly relates to a kind of cell pathology detection puncture needle.
Background technology
Clinically, using puncture needle to get biological cells and tissues specimen and carry out pathology detection, is the important means of diagnosing tumour character, the advantage such as have safe, easy, Wicresoft due to it and misery is little and being widely used.To the usual mode of tumor cell sampling be at present, utilize lancet puncture to diseased region, syringe pull bar is pulled back and produces negative pressure, the cell of lesions position is drawn in puncture needle cavity, then puncture needle is extracted, and it is separated with syringe, be connected with puncture needle again after making syringe suction air, absorption thing in puncture needle drains on slide by the aerofluxus finally by injection tube, then makes pathological cells slide, in order to checking.Aforesaid operations complex steps, comparatively bothers, and efficiency is lower, when especially taking out negative pressure after puncture needle thrusts diseased region, needs both hands to operate injection tube, is easy to make puncture needle be shifted and cause cell sampling inaccurate, and then affects diagnostic result.
Utility model content
It is simple that the purpose of this utility model is to provide a kind of structure, simple operation, greatly reduces cell pathology sampling difficulty, improve operating efficiency, and be conducive to ensureing sample position cell pathology detection accurately puncture needle.
For realizing above-mentioned technical purpose, this utility model adopts following technical scheme: a kind of cell pathology detection puncture needle, comprise a housing, two vertical and cylindrical malleation chamber and negative pressure cavities are provided with in housing, the top of malleation chamber and negative pressure cavity is respectively provided with rod end chamber, piston is installed on respectively in malleation chamber and negative pressure cavity, the piston rod that can move up and down in rod end chamber is connected to above two-piston, the upper end of two-piston bar is installed on feather key respectively, two described feather keys are two vertical chutes and extend to hull outside on housing respectively, two feather keys can slide up and down along corresponding chute, the feather key be positioned on the upside of malleation chamber is connected with the extension spring it being provided to lower pulling force, and the feather key be positioned on the upside of negative pressure cavity is connected with the top spring it being provided to lifting force, described housing lower end is provided with a needle stand, and this needle stand is fixed with puncture needle, described negative pressure cavity lower end one is aspirated switch and is communicated with needle stand, and lower end one waste cock in malleation chamber communicates with needle stand.
This utility model has following beneficial effect: before puncture of being expert at, and opens suction switch, the feather key above slide downward negative pressure cavity, top spring is shunk, make the piston in negative pressure cavity move to bottom, close suction switch, the air in negative pressure cavity is discharged and reaches negative pressure energy accumulating state; Open waste cock, the feather key above upward sliding malleation chamber, makes extension spring stretch, and makes the piston of malleation intracavity move to topmost, closes waste cock, being full of air and reaching malleation energy accumulating state in malleation chamber; Then i.e. feasible puncture, arrive after destination locations until puncture needle lower end, open suction switch, piston in negative pressure cavity moves up under the effect of top spring, make negative pressure cavity produce negative pressure; the cell of diseased region is inhaled in puncture needle, easily can control vacuum magnitude that negative pressure cavity provides for puncture needle and suction time by suction switch, in puncture needle, draw thing closes enough afterwards and aspirate switch and puncture needle is extracted; Open waste cock, the piston in malleation chamber moves down under the effect of extension spring, makes to produce in malleation chamber pressure, and then is discharged by the absorption thing in puncture needle, observes for making slide.During owing to operating by this utility model, in advance energy reserve is carried out to negative pressure cavity and malleation intracavity, therefore only need control and suck switch and waste cock can reach absorption and the discharge of cell in operation, convenient to operation, efficiency is higher, avoid puncture needle position to be in operation shifted, and then ensure that the accuracy of cell sample site.
Accompanying drawing explanation
Fig. 1 is this utility model external structure schematic diagram.
Fig. 2 is this utility model internal structure schematic diagram.
In figure, 1, puncture needle, 2, needle stand, 3, suction switch, 4, negative pressure cavity, 5, piston, 6, piston rod, 7, top spring, 8, feather key, 9, rod end chamber, 10, housing, 11, extension spring, 12, malleation chamber, 13, waste cock, 14, chute.
Detailed description of the invention
As Fig. 1, shown in 2, a kind of cell pathology detection puncture needle disclosed in this utility model, it comprises a housing 10, two vertical and cylindrical malleation chamber 12 and negative pressure cavities 4 are provided with in housing 10, malleation chamber 12 is respectively provided with rod end chamber 9 with the top of negative pressure cavity 4, piston 5 is installed on respectively in malleation chamber 12 and negative pressure cavity 4, the piston rod 6 that can move up and down in rod end chamber 9 is connected to above two-piston 5, the upper end of two-piston bar 6 is installed on feather key 8 respectively, two described feather keys 8 are two vertical chutes 14 and extend to outside housing 10 on housing 10 respectively, two feather keys 8 can slide up and down along corresponding chute 14, the feather key 8 be positioned on the upside of malleation chamber 12 is connected with the extension spring 11 it being provided to lower pulling force, and the feather key 8 be positioned on the upside of negative pressure cavity 4 is connected with the top spring 7 it being provided to lifting force, described housing 10 lower end is provided with a needle stand 2, and this needle stand 2 is fixed with puncture needle 1, described negative pressure cavity 4 lower end one suction switch 3 communicates with needle stand 2, and lower end one waste cock 13 in malleation chamber 12 communicates with needle stand 2.
In order to increase the convenience of operation, described suction switch 3 all adopts the push switch with Self-resetting function with waste cock 13, is closed condition, is in opening when pressing under reset mode.
This utility model using method is:
(1) open suction switch 3, the feather key 8 above slide downward negative pressure cavity 4, makes top spring 7 shrink, and makes the piston 5 in negative pressure cavity 4 move to bottom, and close suction switch 3, the air in negative pressure cavity 4 is discharged and reaches negative pressure energy accumulating state.
(2) open waste cock 13, the feather key 8 above upward sliding malleation chamber 12, makes extension spring 11 be stretched, and makes the piston 5 in malleation chamber 12 move to topmost, closes waste cock 13, being full of air and reaching malleation energy accumulating state in malleation chamber 12.
(3) i.e. feasible puncture, arrive after destination locations until puncture needle 1 lower end, open suction switch 3, piston 5 in negative pressure cavity 4 moves up under the effect of top spring 7, make negative pressure cavity 4 produce negative pressure, the cell of diseased region is inhaled in puncture needle 1, easily can control vacuum magnitude that negative pressure cavity 4 provides for puncture needle 1 and suction time by suction switch 3, until draw in puncture needle 1 thing enough after, close suction switch 3 and also puncture needle 1 extracted.
(4) open waste cock 13, the piston 5 in malleation chamber 12 moves down under the effect of extension spring 11, makes to produce in malleation chamber 12 pressure, and then is discharged by the absorption thing in puncture needle 1, observes for making slide.
During owing to operating by this utility model, energy reserve has been carried out in advance in negative pressure cavity 4 and malleation chamber 12, therefore only need control and suck switch 3 and waste cock 13 can reach absorption and the discharge of cell in operation, convenient to operation, efficiency is higher, avoid puncture needle position to be in operation shifted, and then ensure that the accuracy of cell sample site.
Claims (1)
1. a cell pathology detection puncture needle, comprise a housing, it is characterized in that: in housing, be provided with two vertical and cylindrical malleation chamber and negative pressure cavities, the top of malleation chamber and negative pressure cavity is respectively provided with rod end chamber, piston is installed on respectively in malleation chamber and negative pressure cavity, the piston rod that can move up and down in rod end chamber is connected to above two-piston, the upper end of two-piston bar is installed on feather key respectively, two described feather keys are two vertical chutes and extend to hull outside on housing respectively, and two feather keys can slide up and down along corresponding chute; The feather key be positioned on the upside of malleation chamber is connected with the extension spring it being provided to lower pulling force, and the feather key be positioned on the upside of negative pressure cavity is connected with the top spring it being provided to lifting force; Described housing lower end is provided with a needle stand, and this needle stand is fixed with puncture needle; Described negative pressure cavity lower end one is aspirated switch and is communicated with needle stand, and lower end one waste cock in malleation chamber communicates with needle stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243766.2U CN204542230U (en) | 2015-04-14 | 2015-04-14 | Cell pathology detection puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243766.2U CN204542230U (en) | 2015-04-14 | 2015-04-14 | Cell pathology detection puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204542230U true CN204542230U (en) | 2015-08-12 |
Family
ID=53817409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520243766.2U Expired - Fee Related CN204542230U (en) | 2015-04-14 | 2015-04-14 | Cell pathology detection puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204542230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109965915A (en) * | 2018-09-21 | 2019-07-05 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | One-handed performance for aspiration biopsy extracts needle core and negative pressure suction device |
| CN110680409A (en) * | 2019-10-21 | 2020-01-14 | 韩慧 | Puncture sampler for medical oncology |
-
2015
- 2015-04-14 CN CN201520243766.2U patent/CN204542230U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109965915A (en) * | 2018-09-21 | 2019-07-05 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | One-handed performance for aspiration biopsy extracts needle core and negative pressure suction device |
| CN110680409A (en) * | 2019-10-21 | 2020-01-14 | 韩慧 | Puncture sampler for medical oncology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |