CN203315009U - Marrow fluid quantitative extraction device for hematology - Google Patents
Marrow fluid quantitative extraction device for hematology Download PDFInfo
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- CN203315009U CN203315009U CN201320378437XU CN201320378437U CN203315009U CN 203315009 U CN203315009 U CN 203315009U CN 201320378437X U CN201320378437X U CN 201320378437XU CN 201320378437 U CN201320378437 U CN 201320378437U CN 203315009 U CN203315009 U CN 203315009U
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- piston
- medullo
- marrow fluid
- needle
- syringe
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Abstract
The utility model relates to the technical field of medical instruments, in particular to a marrow fluid quantitative extraction device for hematology, which comprises a needle cylinder and a medullo-puncture needle; the needle cylinder is connected to the medullo-puncture needle; a rubber cup is arranged at the front end in the needle cylinder; two spring convex columns are symmetrically arranged on the inner wall of the needle cylinder; the rubber cup is matched with a piston head; a piston is arranged in the needle cylinder; the conical piston head is arranged at the front end of the piston; two pits are symmetrically arranged at the bottom edge of the piston head; the spring convex columns are matched with the pits; a plurality of imbibition through holes are arranged on the medullo-puncture needle close to the outer wall of the needle point. The marrow fluid quantitative extraction device for hematology disclosed by the utility model has the advantages of being reasonable in structural design, convenient to use and wide in extraction range and is capable of avoiding the adhesion problem between marrow fluid and the piston, preventing excessive extraction, being beneficial to diagnosing blood diseases, lightening pain of patients and reducing the working intensity of medical workers.
Description
Technical field
This utility model relates to technical field of medical instruments, especially the quantitative draw-out device of bone marrow fluid for blood internal medicine.
Background technology
At present, in blood internal medicine clinic diagnosis, diagnosis to hematologic disease usually needs bone marrow extraction liquid to test, and during bone marrow extraction, is generally with common syringe, the needle point place of its syringe needle is the inclined-plane opening, this syringe needle is when bone marrow extraction, and bone marrow is drawn into puncture needle from the inclined-plane opening, and the scope of the bone marrow extracted only limits to the inclined-plane opening part, the scope extracted is too little, is unfavorable for the diagnosis of disease.In addition, in the process of bone marrow extraction liquid, the bad assurance of extraction dynamics, tend to cause the bone marrow fluid dilution if the bone marrow fluid extracted is greater than 0.2ml, thereby affect the judgement of nucleated cell hypertrophy degree, cell counting and classification etc.
The utility model content
The purpose of this utility model is to provide the quantitative draw-out device of bone marrow fluid for blood internal medicine in order to overcome above-mentioned technical disadvantages.
The technical scheme that this utility model technical solution problem adopts is: the quantitative draw-out device of bone marrow fluid for blood internal medicine, comprise syringe and medullo-puncture needle, described syringe connects medullo-puncture needle, the syringe interior forward end is provided with rubber bowl, is arranged with two spring projections on the syringe inwall, is provided with piston in syringe, piston nose is provided with cone shape piston head, the piston head root edge is arranged with two pits, and rubber bowl is fitted coupling mutually with piston head, and the spring projection is fitted coupling mutually with pit.
Offer a plurality of imbibition through holes on the outer wall of described medullo-puncture needle near the needle point position.
Know-why of the present utility model is by presetting the position of spring projection, and when spring projection and pit clamping, the spatial volume between piston head and rubber bowl is fixed, to adapt to the bone marrow fluid aspiration under different patients, different situations.
The beneficial effect that this utility model has is: this utility model reasonable in design, and easy to use, the extraction scope is wide, avoid the problem of bone marrow fluid and piston adhesion, prevented overdraft, be conducive to the diagnosis of hematologic disease, alleviate patient's misery, reduced medical personnel's working strength.
The accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with 1 pair of this utility model of accompanying drawing, be described below.
As shown in Figure 1, this utility model comprises syringe 1 and medullo-puncture needle 2, described syringe 1 connects medullo-puncture needle 2, syringe 1 interior forward end is provided with rubber bowl 4, is arranged with two spring projections 6 on syringe 1 inwall, is provided with piston 3 in syringe 1, piston 3 front ends are provided with cone shape piston head 7, piston head 7 root edges are arranged with two pits 5, and rubber bowl 4 is fitted coupling mutually with piston head 7, and spring projection 6 is fitted coupling mutually with pit 5; Offer a plurality of imbibition through holes 8 on the outer wall of described medullo-puncture needle 2 near the needle point position.
In the present embodiment, determine the position of spring projection 6, make when spring projection 6 and pit 5 clamping, the spatial volume between piston head 7 and rubber bowl 4 is 0.2ml, to prevent bone marrow fluid, crosses suction phenomenon.
Claims (2)
1. the quantitative draw-out device of bone marrow fluid for blood internal medicine, comprise syringe and medullo-puncture needle, it is characterized in that: described syringe connects medullo-puncture needle, the syringe interior forward end is provided with rubber bowl, is arranged with two spring projections on the syringe inwall, is provided with piston in syringe, piston nose is provided with cone shape piston head, the piston head root edge is arranged with two pits, and rubber bowl is fitted coupling mutually with piston head, and the spring projection is fitted coupling mutually with pit.
2. the quantitative draw-out device of bone marrow fluid for blood internal medicine according to claim 1, is characterized in that: on the outer wall of described medullo-puncture needle near the needle point position, offer a plurality of imbibition through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320378437XU CN203315009U (en) | 2013-06-28 | 2013-06-28 | Marrow fluid quantitative extraction device for hematology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320378437XU CN203315009U (en) | 2013-06-28 | 2013-06-28 | Marrow fluid quantitative extraction device for hematology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203315009U true CN203315009U (en) | 2013-12-04 |
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ID=49654418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320378437XU Expired - Fee Related CN203315009U (en) | 2013-06-28 | 2013-06-28 | Marrow fluid quantitative extraction device for hematology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203315009U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490424A (en) * | 2015-01-19 | 2015-04-08 | 浙江省苍南中学 | Drip tube for skin prick test |
| CN104523298A (en) * | 2015-01-19 | 2015-04-22 | 浙江省苍南中学 | Dropper capable of accurately quantizing liquid and suitable for skin prick test |
| CN105615928A (en) * | 2014-10-27 | 2016-06-01 | 中国人民解放军第二军医大学 | Syringe needle |
| CN108433752A (en) * | 2018-01-15 | 2018-08-24 | 温州市人民医院 | A kind of gastric cancer holostrome specimen sampler |
-
2013
- 2013-06-28 CN CN201320378437XU patent/CN203315009U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105615928A (en) * | 2014-10-27 | 2016-06-01 | 中国人民解放军第二军医大学 | Syringe needle |
| CN105615928B (en) * | 2014-10-27 | 2019-01-15 | 中国人民解放军第二军医大学 | A kind of syringe needle |
| CN104490424A (en) * | 2015-01-19 | 2015-04-08 | 浙江省苍南中学 | Drip tube for skin prick test |
| CN104523298A (en) * | 2015-01-19 | 2015-04-22 | 浙江省苍南中学 | Dropper capable of accurately quantizing liquid and suitable for skin prick test |
| CN108433752A (en) * | 2018-01-15 | 2018-08-24 | 温州市人民医院 | A kind of gastric cancer holostrome specimen sampler |
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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: 20131204 Termination date: 20140628 |
|
| EXPY | Termination of patent right or utility model |