CN215384083U - Safety blood taking needle - Google Patents
Safety blood taking needle Download PDFInfo
- Publication number
- CN215384083U CN215384083U CN202121475798.7U CN202121475798U CN215384083U CN 215384083 U CN215384083 U CN 215384083U CN 202121475798 U CN202121475798 U CN 202121475798U CN 215384083 U CN215384083 U CN 215384083U
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- CN
- China
- Prior art keywords
- needle
- catheter
- catheter seat
- puncture
- sampling
- 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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- 239000008280 blood Substances 0.000 title claims abstract description 41
- 210000004369 blood Anatomy 0.000 title claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 67
- 239000010959 steel Substances 0.000 claims abstract description 67
- 230000001681 protective effect Effects 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 238000005070 sampling Methods 0.000 claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000010241 blood sampling Methods 0.000 abstract description 14
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 208000012266 Needlestick injury Diseases 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000005541 medical transmission Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a safety blood taking needle, which comprises an indwelling needle body, a blood transfusion hose and a sampling needle head, wherein two ends of the blood transfusion hose are respectively communicated with the indwelling needle body and the sampling needle head; the indwelling needle main body comprises a catheter seat, a puncture steel needle and a protective sleeve for accommodating the puncture steel needle, a cavity penetrating through the catheter seat is arranged in the catheter seat, a catheter extending out of the catheter seat is arranged in the cavity, one end of the puncture steel needle penetrates out of the catheter from the cavity, the other end of the puncture steel needle is inserted into the protective sleeve in a telescopic mode, the protective sleeve is sleeved on the catheter seat and is in threaded connection with the catheter seat, and a blood transfusion hose is fixedly connected to the side wall of the catheter seat; the sampling needle head is sleeved with a corrugated pipe, one end of the corrugated pipe is fixedly connected with the sampling needle head, the other end of the corrugated pipe is provided with a sealing cover, and the sealing cover is provided with a self-sealing opening capable of elastically self-sealing. The safety blood taking needle realizes that the puncture steel needle can be stored in the protective sleeve without a needle cap which is sleeved back, so that the puncture injury is avoided when the blood taking is finished. The sampling needle head is sleeved with the corrugated pipe, so that the sampling needle head is prevented from being exposed, and a blood sampling person is protected.
Description
Technical Field
The utility model relates to a blood taking needle, in particular to a safety blood taking needle.
Background
In clinical treatment and outpatient examination, a large number of venous blood samples are collected every day for various examinations.
Disposable safety blood taking needles are important instruments for collecting blood samples in the medical examination process, and the basic structure of the existing safety blood taking needles is as follows: including bottle plug pjncture needle and protective sheath, safe type blood sampling syringe needle and protective sheath, hose, the one end of hose links to each other with the bottle plug pjncture needle, and the other end of hose links to each other with safe type blood sampling syringe needle, and safe type blood sampling syringe needle still includes syringe needle portion and pterygoid lamina portion, and above-mentioned bottle plug pjncture needle and safe type blood sampling syringe needle all establish the cylindric protective sheath of being connected with their card formula outward. The protective sheath of safe type blood sampling syringe needle is a drum rather than the card formula is connected basically, before the blood sampling, takes off the protective sheath, and after the blood sampling, the syringe needle exposes, when nurse handles last pipe blood sampling test tube, very easily takes place the acupuncture and hinders, and this not only brings the injury for the person of taking a blood sample, easily causes the propagation of disease moreover.
Therefore, the safety blood taking needle is designed, and disease transmission caused by needle stick injury is effectively avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a safety blood taking needle, which effectively avoids disease transmission caused by needle stick injury.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the safety blood taking needle comprises an indwelling needle body, a blood transfusion hose and a sampling needle head, wherein two ends of the blood transfusion hose are respectively communicated with the indwelling needle body and the sampling needle head; the indwelling needle main body comprises a catheter seat, a puncture steel needle and a protective sleeve for accommodating the puncture steel needle, a cavity penetrating through the catheter seat is arranged in the catheter seat, a catheter extending out of the catheter seat is arranged in the cavity, one end of the puncture steel needle penetrates out of the catheter from the cavity, the other end of the puncture steel needle is inserted into the protective sleeve in a telescopic mode, the protective sleeve is sleeved on the catheter seat and is in threaded connection with the catheter seat, and a blood transfusion hose is fixedly connected to the side wall of the catheter seat; the sampling needle head is sleeved with a corrugated pipe, one end of the corrugated pipe is fixedly connected with the sampling needle head, the other end of the corrugated pipe is provided with a sealing cover, and the sealing cover is provided with a self-sealing opening capable of elastically self-sealing.
As a further improvement of the above technical solution:
the safety blood taking needle further comprises a sealing cover used for sealing the bottom of the catheter seat, and the sealing cover is sleeved on the catheter seat and is in threaded connection with the catheter seat. After the catheter of the catheter holder is left in the blood vessel by adopting the vein remaining needle technology, the protective sleeve and the puncture steel needle are separated from the catheter holder, and meanwhile, the sealing cover is utilized to seal the cavity of the catheter holder, so that blood leakage is avoided.
Install shrink mechanism in the protective sheath, shrink mechanism includes spring, elastic rubber ring and steel bushing, and elastic rubber ring internal diameter is less than the external diameter of puncture steel needle tail end, and the steel bushing internal diameter is greater than puncture steel needle external diameter, and elastic rubber ring encircles protective sheath inner wall and rather than fixed connection, and the spring sets up between protective sheath free end and elastic rubber ring, puncture steel needle tail end pass elastic rubber ring and with spring one end fixed connection, the spring other end and protective sheath fixed connection, the steel bushing cover is located on the puncture steel needle and can insert between puncture steel needle and the elastic rubber ring. The steel sleeve is forcibly inserted between the puncture steel needle and the elastic rubber ring, and the puncture steel needle can be automatically recovered into the protective sleeve, so that the puncture injury caused by the puncture needle after the blood sampling is finished is avoided.
Furthermore, a sliding block protrudes from the outer surface of the steel sleeve, a sliding groove is formed in the position, relative to the sliding block, of the protective sleeve, and the sliding block can penetrate through the sliding groove in a sliding mode. Utilize the slider operation slider, convenient and fast.
Furthermore, the sliding block is provided with an anti-skidding rubber mat. The sliding of the sliding block is avoided.
Further, the steel sleeve is wound into a circular ring shape by the thin sheet. The steel sleeve is favorable to be inserted between the puncture steel needle and the elastic rubber ring.
Furthermore, an inclined plane is arranged on the inner wall of one side, close to the steel sleeve, of the elastic rubber ring. The steel sleeve is favorable to be inserted between the puncture steel needle and the elastic rubber ring.
And fins are arranged on the side surface of the catheter seat. Is beneficial to the implementation of the vein indwelling needle technology.
Compared with the prior art, the utility model has the advantages that:
1. the puncture steel needle can be contained in the protective sleeve by arranging the protective sleeve. The puncture steel needle can be stored in the protective sleeve without sleeving a needle cap again, so that the puncture steel needle is prevented from being injured by a needle when blood sampling is finished. The sampling needle head is sleeved with the corrugated pipe, so that the sampling needle head is prevented from being exposed, and a blood sampling person is protected.
2. The catheter of the catheter seat is left in the blood vessel by adopting the vein indwelling needle technology, and the blood of the patient is drawn. Avoid repeated puncture, improve medical personnel's work efficiency.
Drawings
Fig. 1 is a structural view of a safety lancet.
Fig. 2 is an enlarged view of a of fig. 1.
Fig. 3 is a view of the puncture steel needle received in the protective sheath.
Fig. 4 is a view showing a state where the sealing cap is coupled to the catheter hub.
Description of reference numerals:
1. a main body of the indwelling needle; 2. a blood transfusion hose; 3. a sampling needle head; 4. a bellows; 5. a retracting mechanism; 11. puncturing a steel needle; 12. a catheter hub; 13. a protective sleeve; 14. a cavity; 15. a fin; 16. a conduit; 17. a sealing cover; 41. sealing the cover; 51. a spring; 52. an elastic rubber ring; 53. steel jacket; 54. a slider; 55. a chute.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, there will now be described in detail, with reference to the accompanying drawings, a non-limiting detailed description of the present invention.
As shown in fig. 1 to 4, the safety blood taking needle of the present embodiment comprises an indwelling needle body 1, a blood transfusion hose 2 and a sampling needle 3, wherein two ends of the blood transfusion hose 2 are respectively communicated with the indwelling needle body 1 and the sampling needle 3; the indwelling needle main body 1 comprises a catheter seat 12, a puncture steel needle 11 and a protective sleeve 13 for accommodating the puncture steel needle 11, a cavity 14 penetrating through the catheter seat 12 is arranged in the catheter seat 12, a catheter 16 extending out of the catheter seat 12 is arranged in the cavity 14, one end of the puncture steel needle 11 penetrates out of the catheter 16 from the cavity 14, the other end is inserted into the protective sleeve 13 in a telescopic manner, the protective sleeve 13 is sleeved on the catheter seat 12 and is in threaded connection with the catheter seat 12, and the blood transfusion hose 2 is fixedly connected to the side wall of the catheter seat 12; the sampling needle 3 is sleeved with a corrugated pipe 4, one end of the corrugated pipe 4 is fixedly connected with the sampling needle 3, the other end of the corrugated pipe is provided with a sealing cover 41, and the sealing cover 41 is provided with a self-sealing opening capable of elastically self-sealing. The safety blood taking needle further comprises a sealing cover 17 for sealing the bottom of the catheter seat 12, and the sealing cover 17 is sleeved on the catheter seat 12 and is in threaded connection with the catheter seat. The catheter hub 12 is provided with fins 15 on the sides.
Wherein, install shrink mechanism 5 in the protective sheath 13, shrink mechanism 5 includes spring 51, elasticity gum ring 52 and steel bushing 53, elasticity gum ring 52 internal diameter is less than the external diameter of puncture steel needle 11 tail end, steel bushing 53 internal diameter is greater than puncture steel needle 11 external diameter, elasticity gum ring 52 encircles protective sheath 13 inner wall and rather than fixed connection, spring 51 sets up between protective sheath 13 free end and elasticity gum ring 52, puncture steel needle 11 tail end pass elasticity gum ring 52 and with spring 51 one end fixed connection, the spring 51 other end and protective sheath 13 fixed connection, steel bushing 53 overlaps locates on puncture steel needle 11 and can insert between puncture steel needle 11 and the elasticity gum ring 52. The outer surface of the steel sleeve 53 is protruded with a sliding block 54, the protective sleeve 13 is provided with a sliding groove 55 at a position corresponding to the sliding block 54, and the sliding block 54 can slide through the sliding groove 55. The slider 54 is provided with an anti-slip rubber pad. The steel jacket 53 is wound from a thin sheet into a circular ring shape. The inner wall of the elastic rubber ring 52 close to one side of the steel sleeve 53 is provided with an inclined surface.
For the use of this example, reference is made to the following steps:
in use, the puncture steel needle 11 extending out of the catheter 16 is first punctured into a selected blood vessel. Secondly, after the puncture is successful, the catheter base 12 is pressed by hand, the steel sleeve 53 is forcibly inserted between the puncture steel needle 11 and the elastic rubber ring 52, so that the elastic rubber ring 52 is not contacted with the puncture steel needle 11, and the puncture steel needle 11 is retracted into the protective sleeve 13 under the elastic action of the spring 51. Then, the protector 13 is rotated to take out the protector 13 and the contracting mechanism 5, and the catheter hub 12 is fitted with the seal cap 17 and screwed thereto. Finally, the corrugated pipe 4 is compressed by the blood sampling test tube, the sampling needle 3 is exposed out of the corrugated pipe 4, and the sampling needle 3 is inserted into the blood sampling test tube. The sampling needle head 3 is prevented from being exposed, and a blood sampler is protected.
Claims (7)
1. Safety type blood taking needle, its characterized in that: comprises a remaining needle body (1), a blood transfusion hose (2) and a sampling needle head (3), wherein two ends of the blood transfusion hose (2) are respectively communicated with the remaining needle body (1) and the sampling needle head (3); the indwelling needle main body (1) comprises a catheter seat (12), a puncture steel needle (11) and a protective sleeve (13) for accommodating the puncture steel needle (11), a cavity (14) penetrating through the catheter seat (12) is arranged in the catheter seat (12), a catheter (16) extending out of the catheter seat (12) is arranged in the cavity (14), one end of the puncture steel needle (11) penetrates out of the catheter (16) through the cavity (14), the other end of the puncture steel needle is inserted into the protective sleeve (13) in a telescopic manner, the protective sleeve (13) is sleeved on the catheter seat (12) and is in threaded connection with the catheter seat, and a blood transfusion hose (2) is fixedly connected to the side wall of the catheter seat (12); the sampling needle (3) is sleeved with a corrugated pipe (4), one end of the corrugated pipe (4) is fixedly connected with the sampling needle (3), the other end of the corrugated pipe is provided with a sealing cover (41), and the sealing cover (41) is provided with a self-sealing opening capable of being elastically self-sealed.
2. A safety blood lancet according to claim 1, wherein: the catheter is characterized by further comprising a sealing cover (17) used for sealing the bottom of the catheter seat (12), wherein the sealing cover (17) is sleeved on the catheter seat (12) and is in threaded connection with the catheter seat.
3. A safety blood lancet according to claim 2, wherein: install shrink mechanism (5) in protective sheath (13), shrink mechanism (5) are including spring (51), elastic rubber ring (52) and steel bushing (53), elastic rubber ring (52) internal diameter is less than the external diameter of puncture steel needle (11) tail end, steel bushing (53) internal diameter is greater than puncture steel needle (11) external diameter, elastic rubber ring (52) encircle protective sheath (13) inner wall and rather than fixed connection, spring (51) set up between protective sheath (13) free end and elastic rubber ring (52), puncture steel needle (11) tail end pass elastic rubber ring (52) and with spring (51) one end fixed connection, the spring (51) other end and protective sheath (13) fixed connection, steel bushing (53) cover is located puncture steel needle (11) and can insert between puncture steel needle (11) and elastic rubber ring (52).
4. A safety blood lancet according to claim 3, wherein: a sliding block (54) protrudes from the outer surface of the steel sleeve (53), a sliding groove (55) is formed in the position, opposite to the sliding block (54), of the protective sleeve (13), and the sliding block (54) can slidably penetrate through the sliding groove (55).
5. A safety blood lancet according to claim 4, wherein: the sliding block (54) is provided with an anti-skidding rubber mat.
6. A safety blood lancet according to claim 5, wherein: the steel sleeve (53) is wound into a circular ring shape by a thin sheet.
7. A safety blood lancet according to claim 1, wherein: and the side surface of the catheter seat (12) is provided with a fin (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121475798.7U CN215384083U (en) | 2021-06-30 | 2021-06-30 | Safety blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121475798.7U CN215384083U (en) | 2021-06-30 | 2021-06-30 | Safety blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215384083U true CN215384083U (en) | 2022-01-04 |
Family
ID=79643482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121475798.7U Expired - Fee Related CN215384083U (en) | 2021-06-30 | 2021-06-30 | Safety blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215384083U (en) |
-
2021
- 2021-06-30 CN CN202121475798.7U patent/CN215384083U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20220104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |