CN205041407U - Prevent back blood and gather needle - Google Patents
Prevent back blood and gather needle Download PDFInfo
- Publication number
- CN205041407U CN205041407U CN201520246342.1U CN201520246342U CN205041407U CN 205041407 U CN205041407 U CN 205041407U CN 201520246342 U CN201520246342 U CN 201520246342U CN 205041407 U CN205041407 U CN 205041407U
- Authority
- CN
- China
- Prior art keywords
- blood
- puncture needle
- check valve
- haemocoele
- valve sheet
- 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.)
- Active
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a prevent back blood and gather needle, including puncture needle, puncture needle file, to septum holder, to the contact pin pipe, puncture needle is fixed to be set up at the middle part of puncture needle file, sets up in the middle part position to septum holder the contact pin pipe is fixed, and its characterized in that is in the same place with pegging graft to set up to septum holder to the puncture needle file puncture needle file and to forming back the haemocoele between the septum holder sets up one -way valve block in time haemocoele, is provided with the through -hole on the one -way valve block. The utility model discloses simple structure, reasonable in design through will puncturing needle file and peg graft to set up and forms back the haemocoele to septum holder, and sets up check valve piece that a soft plastic made and forms the close inner chamber that seals that liquid can only uniflow in returning the haemocoele, and blood backward flow in the time of can effectively stopping clinical blood sampling in the heparin tube reduces the emergence of clinical bad incident, has also reduced medical personnel's spiritual pressure simultaneously, and this product practicality is stronger, and the facilitate promotion is applied, and the batch produced greatly.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to a kind of blood return prevention and gathers pin.
Background technology
Blood collection needle is as a kind of conventional medical apparatus, it is requisite apparatus in blood collection procedure, traditional blood collection needle, puncture needle and to contact pin be one, puncture needle pipe orifice and contact pin endoporus is directly communicated, during clinical implementation blood sampling, the blood vessel of person of blood collecting directly communicates with blood taking tube, the total board web of state food drug control there is the clinical adverse events of blood backflow report for work, and most of blood taking tube of Clinical practice is sterilized, various additive is prefixed in blood taking tube, the reverse infection risk of easy appearance, bring mental pressure to medical personnel and person of blood collecting simultaneously.Current state food drug control general bureau requires that blood taking tube manufacturer takes some measures, and uses blood taking needle or blood taking tube to have anti-backflow device, or all vacuum test tube with sterile form supply.Tradition gathers pin and generally includes puncture needle tubing, needle stand, to contact pin pipe, rubber cap and protective sleeve, do not have the function of blood-backflow preventing, therefore, designs a kind of blood collection needle with blood return prevention function very necessary.
Utility model content
For problems of the prior art, this utility model object is providing a kind of blood return prevention to gather pin
This utility model is realized by the following technical programs:
Described a kind of blood return prevention gathers pin, comprise puncture needle tubing, Paracentesis needle holder, to Plug pin patch bay, to contact pin pipe, described puncture needle tubing is fixedly installed on the middle part of Paracentesis needle holder, medium position to Plug pin patch bay is fixedly installed on to contact pin pipe, described Paracentesis needle holder and Plug pin patch bay grafting is set together, it is characterized in that described Paracentesis needle holder and form blood back cavity between Plug pin patch bay, in described blood back cavity, check valve sheet is set, described check valve sheet is provided with through hole.
Described a kind of blood return prevention gathers pin, it is characterized in that described through hole has two at least.
Described a kind of blood return prevention gathers pin, and it is characterized in that described check valve sheet is rounded, the outside diameter of check valve sheet and the inner diameter of blood back cavity match.
Described a kind of blood return prevention gathers pin, and it is characterized in that described blood back cavity is provided with annular protrusion on the bottom surface of Paracentesis needle holder, described projection and check valve sheet veneer touch setting.
This utility model structure is simple, reasonable in design, by arranging formation blood back cavity by Paracentesis needle holder and to Plug pin patch bay grafting, and arrange in blood back cavity check valve sheet that a soft plastic makes formed liquid can only one-way flow be sealed inner chamber, blood backflow when effectively can stop clinical blood sampling in blood taking tube, reduces the generation of clinical adverse events, decrease the stress of medical personnel simultaneously, this product practicality is comparatively strong, easy to utilize, can produce in enormous quantities.
Accompanying drawing explanation
Fig. 1 is embodiment 1 cross-sectional view;
Fig. 2 is the structural representation of check valve sheet;
Fig. 3 is embodiment 2 cross-sectional view;
In figure, 1-punctures needle tubing, 2-Paracentesis needle holder, and 3-is to Plug pin patch bay, and 4-is to contact pin pipe, and 5-blood back cavity, 6-check valve sheet, 7-through hole, 8-is protruding, 9-tapering joint.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described in further detail, and provides detailed description of the invention.
Embodiment 1
As shown in Figure 1, a kind of blood return prevention of this utility model gathers pin, comprise puncture needle tubing 1, Paracentesis needle holder 2, to Plug pin patch bay 3, to contact pin pipe 4, two needle stands all adopt transparent medical grade plastic to make and both are bonding setting, puncture needle tubing 1 is fixedly installed on the middle part of Paracentesis needle holder 2, medium position to Plug pin patch bay 3 is fixedly installed on to contact pin pipe 4, be specially puncture needle tubing 1 to closely cooperate with Paracentesis needle holder 2 inner pore, to contact pin pipe 4 with Plug pin patch bay 3 inner pore is closely cooperated, Paracentesis needle holder 2 and Plug pin patch bay 3 grafting is set together, and Paracentesis needle holder 2 and to the blood back cavity 5 forming hollow between Plug pin patch bay 3, for preventing blood backflow, circular check valve sheet 6 is set in blood back cavity 5, the outside diameter of check valve sheet 6 and the inner diameter of blood back cavity 5 match, check valve sheet 6 is provided with through hole 7, this through hole 7 is at least provided with two, for realizing the sealing of cavity, on the bottom surface of Paracentesis needle holder 2, annular protrusion 8 is provided with at blood back cavity 5, this projection 8 touches setting with check valve sheet 6 veneer.
Embodiment 2
As shown in Figure 2, a kind of blood return prevention gathers pin, it is to Plug pin patch bay 3 with identical with example structure to contact pin pipe 4 structure, and difference from Example 1 is to arrange Plug pin patch bay 3 and tapering joint 9 grafting, and check valve sheet 6 is arranged on tapering joint 9 with in the cavity formed Plug pin patch bay 3.
Utility model works principle, the puncture needle tubing gathering pin thrusts the blood vessel of person of blood collecting, the other end contact pin pipe is connected with blood taking tube, blood of human body leads to blood back cavity by the needle tubing that punctures, now because check valve sheet is opened higher than the effect of negative pressure of vacuum in atmospheric pressure and straight empty blood taking tube by the venous pressure of human body, blood rapidly flows toward in contact pin pipe through check valve sheet, be inhaled into again in blood taking tube, because being provided with check valve sheet in blood back cavity, the blood collected in blood taking tube just instead cannot flow into puncture needle tubing and human vas, and then realizes blood-backflow preventing.
Claims (4)
1. a blood return prevention gathers pin, comprise puncture needle tubing (1), Paracentesis needle holder (2), to Plug pin patch bay (3), to contact pin pipe (4), described puncture needle tubing (1) is fixedly installed on the middle part of Paracentesis needle holder (2), medium position to Plug pin patch bay (3) is fixedly installed on to contact pin pipe (4), described Paracentesis needle holder (2) and Plug pin patch bay (3) grafting is set together, it is characterized in that described Paracentesis needle holder (2) and form blood back cavity (5) between Plug pin patch bay (3), check valve sheet (6) is set in described blood back cavity, described check valve sheet (6) is provided with through hole (7).
2. a kind of blood return prevention according to claim 1 gathers pin, it is characterized in that described through hole (7) has two at least.
3. a kind of blood return prevention according to claim 1 gathers pin, and it is characterized in that described check valve sheet (6) is rounded, the outside diameter of check valve sheet (6) and the inner diameter of blood back cavity (5) match.
4. a kind of blood return prevention according to claim 1 gathers pin, and it is characterized in that described blood back cavity (5) is provided with annular protrusion (8) on the bottom surface of Paracentesis needle holder (2), described projection (8) and check valve sheet (6) veneer touch setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520246342.1U CN205041407U (en) | 2015-04-22 | 2015-04-22 | Prevent back blood and gather needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520246342.1U CN205041407U (en) | 2015-04-22 | 2015-04-22 | Prevent back blood and gather needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205041407U true CN205041407U (en) | 2016-02-24 |
Family
ID=55335034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520246342.1U Active CN205041407U (en) | 2015-04-22 | 2015-04-22 | Prevent back blood and gather needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205041407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757980A (en) * | 2015-04-22 | 2015-07-08 | 浙江灵洋医疗器械有限公司 | Blood return preventing collection needle |
-
2015
- 2015-04-22 CN CN201520246342.1U patent/CN205041407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757980A (en) * | 2015-04-22 | 2015-07-08 | 浙江灵洋医疗器械有限公司 | Blood return preventing collection needle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103462649B (en) | Special dropper for skin prick test | |
| CN203525076U (en) | Countercurrent-resistant remaining needle | |
| CN203790010U (en) | Deep artery and vein puncture needle | |
| CN102160793B (en) | Dripping-proof backflow-blood-observable venous blood taking needle | |
| CN205041407U (en) | Prevent back blood and gather needle | |
| CN212789302U (en) | Transfusion system with tube sealing device | |
| CN203954318U (en) | Pediatric nursing venous detaining needle blood return preventer | |
| CN104757980A (en) | Blood return preventing collection needle | |
| CN204319043U (en) | Paracentesis of anterior chamber tapping pin | |
| CN204219516U (en) | high pressure remaining needle | |
| CN204411414U (en) | The anti-blood of a kind of venous detaining needle fastens safety head | |
| CN203483456U (en) | Drip tube special for skin pricking test | |
| CN204379891U (en) | Multifunctional airtight transfusion syringe pipe | |
| CN204092695U (en) | A kind of accurate blood transfusion apparatus | |
| CN208049128U (en) | A kind of straight type remaining needle of operation | |
| CN201996552U (en) | Drip-tight visible venous blood-sampling needle | |
| CN204336933U (en) | Counterflow-preventing blood taking needle | |
| CN201267643Y (en) | Novel transfusion system | |
| CN204864382U (en) | Syringe | |
| CN203816080U (en) | Arteriovenous indwelling needle sealing plug | |
| CN204563132U (en) | Infusion connector protective cap | |
| CN204798595U (en) | Abdominocentesis device | |
| CN206597191U (en) | Dispoable medical Fransfusion medicine feeder | |
| CN201551318U (en) | Combined hemostix | |
| CN209611757U (en) | Disposable efficient medical liquid dispenser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |