CN206324789U - Arterial blood drawing pin - Google Patents
Arterial blood drawing pin Download PDFInfo
- Publication number
- CN206324789U CN206324789U CN201620925641.2U CN201620925641U CN206324789U CN 206324789 U CN206324789 U CN 206324789U CN 201620925641 U CN201620925641 U CN 201620925641U CN 206324789 U CN206324789 U CN 206324789U
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- China
- Prior art keywords
- syringe
- annular
- silica gel
- syringe needle
- groove
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of arterial blood drawing pin, including syringe needle（1）, syringe, piston push-pull rod（7）, it is characterised in that：Syringe is divided into syringe barrel（6）With syringe needle connecting seat（12）, a silica gel check valve is embedded with syringe needle connecting seat（2）, one section with syringe needle connecting seat connection end of syringe barrel is to form a ring vaccum annular seal space between bimetallic tube, double-deck tube wall（5）, inner layer tube wall is interior to filter groove provided with an annular（8）, the annular grumeleuse filter membrane of the interior setting-in one of filtering groove（3）, filtering groove is provided with several blood stream through holes communicated with ring vaccum annular seal space（11）, there is an annular soft silica gel sealing ring fixed groove outside outer wall（9）, soft silica gel sealing ring（4）In setting-in is fixed on, annular soft silica gel sealing ring fixed groove is provided with several puncturing holes communicated with ring vaccum annular seal space（10）.
Description
Technical field
The utility model is related to medical instruments field, more particularly to a kind of arterial blood drawing pin.
Background technology
Arterial blood gas analysis is used for an important laboratory examination of oxygen conjunction, ventilation and the acid-base status for evaluating patient.It is logical
Cross arterial blood gas analysis and will be seen that Pulmonary Function and body fluid acid-base balance state, and adjust, treat as mechanical ventilation parameters
One of important evidence of effect analysis and Index for diagnosis.With the development of medical technology, arterial blood gas analysis is clinically obtained
It is widely applied.
Accurate diagnosis of the arterial blood gas analysis result to respiratory failure, acid-base imbalance is most important, and qualified
Arterial blood sample is to ensure the accurate premise of Results of Blood-gas.Blood gas analysis typically uses whole blood sample, it is desirable to which its sample is just
Really collection, isolation air, timely censorship, and require sample without grumeleuse, haemolysis etc..Research shows that the sample of blood gas analysis does not conform to
Lattice reason mainly includes blood clotting, is mixed into venous blood, sample hemolysis, specimen amount be few and censored time is long etc., wherein sample
Solidification is the unqualified one of the main reasons of sample, accounts for the 20-30% of unqualified sample.
At present, the arterial blood drawing clinically commonly used mainly has Three models：One is the pressure using arteries itself
From full formula arterial blood drawing pin, two be piston injection-type arterial blood drawing pin, and this hemostix needs bimanualness.It is exactly to adopt in addition
Arterial blood drawing is carried out after substituting arterial blood air tube, Inhaled Heparin with ordinary syringe.Existing arterial blood drawing pattern is above
It is still to be coated directly on inwall by anti-coagulants, the dosage and concentration of anti-coagulants are also difficult to accurate control, and anti-coagulants dissolving speed
Degree is slow, is difficult to be evenly distributed in blood, frequently results in blood clotting, and then block blood gas analyzer specimen needle and have a strong impact on
Results of Blood-gas.In addition, existing blood gas analyzer is frequently with integrated form reagent bag, each reagent bag can do tens to hundreds of
Test, the price of each reagent bag is very high.Blood gas analyzer specimen needle is blocked when sample solidifies, its final result is often whole
Individual reagent bag cancels.Therefore, it is to avoid sample solidifies and prevents that blood gas analyzer specimen needle from blocking, to ensureing Results of Blood-gas matter
Amount and control blood gas analysis cost are most important.
Under the conditions of prior art, sample freezing problem is difficult to avoid that, and blood gas analysis uses whole blood sample, it is difficult to
Identification sample solidification before analysis, could often be recognized after specimen needle blocking.Therefore, take appropriate measures prevention blood gas analysis
Instrument suction grumeleuse is only the effective way for preventing that vim and vigour specimen needle from blocking.
Utility model content
The purpose of this utility model be in order to overcome the deficiencies in the prior art and provide it is a kind of with grumeleuse filtering function,
A kind of arterial blood drawing pin of possible grumeleuse blocking blood gas analyzer specimen needle in sample can effectively be prevented.Arterial blood drawing pin bag
Syringe needle, syringe, piston push-pull rod are included, syringe, which is divided into syringe barrel and syringe needle connecting seat, syringe needle connecting seat, is embedded with a silica gel
Check valve, one section of syringe barrel and syringe needle connecting seat connection end is that to form a ring vaccum between bimetallic tube, double-deck tube wall close
Seal in chamber, inner layer tube wall and filtered provided with an annular in groove, filtering groove on the annular grumeleuse filter membrane of setting-in one, filtering groove
Provided with several blood stream through holes communicated with ring vaccum annular seal space, there is an annular soft silica gel sealing ring anchor outside outer wall
Groove, in soft silica gel sealing ring setting-in is fixed on, annular soft silica gel sealing ring fixed groove is sealed with ring vaccum provided with several
The puncturing hole that chamber is communicated.
Described vacuum-sealed cavity, its volume >=1ml.
Described grumeleuse filter membrane is made up of the different miillpore filter in multilayer aperture, including two layers of aperture is 20 μm and two layers
Aperture is 15 μm of miillpore filter.
From the technical solution of the utility model as can be seen that filtering membrane structure due to devising vacuum-sealed cavity and grumeleuse,
During arterial blood drawing, blood flows into the inner chamber of syringe through silica gel check valve first.During pattern detection, piston push-and-pull need to be pressed first
Bar, under the mating reaction of silica gel check valve and grumeleuse filter membrane ring, blood plasma and mononuclear blood cell are filtered to vacuum-sealed cavity
In, it is understood that there may be grumeleuse be blocked in the inner chamber of syringe.Then, the specimen needle of blood gas analyzer wears out soft silica gel sealing
Ring, into vacuum-sealed cavity, completes to inhale sample action.And soft silica gel sealing ring had both been easy to be inhaled by blood gas analyzer sample pin puncture
Sample, and puncturing hole is closed while blood gas analyzer specimen needle is extracted, it can effectively prevent blood outflow and biological pollution.Completely
Reach that the utility model carries grumeleuse filtering function, can effectively prevent that possible grumeleuse blocks blood gas analyzer sample in sample
The goal of the invention of this pin.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model arterial blood drawing pin.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in further detail.
Embodiment 1, referring to accompanying drawing 1, a kind of arterial blood drawing pin, including syringe needle 1, syringe, piston push-pull rod 7, syringe is divided into
A silica gel check valve 2, syringe barrel and syringe needle connecting seat are embedded with syringe barrel 6 and syringe needle connecting seat 12, syringe needle connecting seat
One section of connection end is to be formed to be provided with an annular in a ring vaccum annular seal space 5, inner layer tube wall between bimetallic tube, double-deck tube wall
Groove 8 is filtered, filtering groove is interior to be embedded in an annular grumeleuse filter membrane 3, and filtering groove is provided with several and ring vaccum annular seal space
There is an annular soft silica gel sealing ring fixed groove 9 outside the blood stream through hole 11 communicated, outer wall, soft silica gel sealing ring 4 is embedded in
In being fixed on, annular soft silica gel sealing ring fixed groove is provided with several puncturing holes 10 communicated with ring vaccum annular seal space.
Described vacuum-sealed cavity, its volume >=1ml.
Described grumeleuse filter membrane is made up of the different miillpore filter in multilayer aperture, including two layers of aperture is 20 μm and two layers
Aperture is 15 μm of miillpore filter.
Claims (3)
1. a kind of arterial blood drawing pin, including syringe needle（1）, syringe, piston push-pull rod（7）, it is characterised in that：Syringe is divided into syringe cylinder
Body（6）With syringe needle connecting seat（12）, a silica gel check valve is embedded with syringe needle connecting seat（2）, syringe barrel and syringe needle connecting seat
One section of connection end is to form a ring vaccum annular seal space between bimetallic tube, double-deck tube wall（5）, inner layer tube wall is interior to be provided with an annulus
Shape filters groove（8）, the annular grumeleuse filter membrane of the interior setting-in one of filtering groove（3）, filtering groove is provided with several and ring vaccum
The blood stream through hole that annular seal space is communicated（11）, there is an annular soft silica gel sealing ring fixed groove outside outer wall（9）, soft silica gel is close
Seal ring（4）In setting-in is fixed on, annular soft silica gel sealing ring fixed groove is communicated provided with several with ring vaccum annular seal space
Puncturing hole（10）.
2. a kind of arterial blood drawing pin according to claim 1, it is characterised in that：Described vacuum-sealed cavity, its volume >=
1ml。
3. a kind of arterial blood drawing pin according to claim 1, it is characterised in that：Described grumeleuse filter membrane is by multilayer aperture
Different miillpore filter compositions, including the miillpore filter that two layers of aperture is 20 μm and two layers of aperture is 15 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620925641.2U CN206324789U (en) | 2016-08-24 | 2016-08-24 | Arterial blood drawing pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620925641.2U CN206324789U (en) | 2016-08-24 | 2016-08-24 | Arterial blood drawing pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206324789U true CN206324789U (en) | 2017-07-14 |
Family
ID=59286988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620925641.2U Expired - Fee Related CN206324789U (en) | 2016-08-24 | 2016-08-24 | Arterial blood drawing pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206324789U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236114A (en) * | 2016-08-24 | 2016-12-21 | 川北医学院附属医院 | Arterial blood drawing pin |
| CN107469706A (en) * | 2017-08-30 | 2017-12-15 | 宁波佗鹊堂生物科技有限公司 | The oscillating uniform device of vacuum blood collection tube |
-
2016
- 2016-08-24 CN CN201620925641.2U patent/CN206324789U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236114A (en) * | 2016-08-24 | 2016-12-21 | 川北医学院附属医院 | Arterial blood drawing pin |
| CN107469706A (en) * | 2017-08-30 | 2017-12-15 | 宁波佗鹊堂生物科技有限公司 | The oscillating uniform device of vacuum blood collection tube |
| CN107469706B (en) * | 2017-08-30 | 2019-07-23 | 宁波佗鹊堂生物科技有限公司 | The oscillating uniform device of vacuum blood collection tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170714 Termination date: 20200824 |