CN216984905U - Blood taking needle with retraction needle head structure - Google Patents
Blood taking needle with retraction needle head structure Download PDFInfo
- Publication number
- CN216984905U CN216984905U CN202220149000.8U CN202220149000U CN216984905U CN 216984905 U CN216984905 U CN 216984905U CN 202220149000 U CN202220149000 U CN 202220149000U CN 216984905 U CN216984905 U CN 216984905U
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- China
- Prior art keywords
- needle
- protection
- protective
- rod
- tube
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- 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 37
- 210000004369 blood Anatomy 0.000 title claims abstract description 37
- 230000001681 protective effect Effects 0.000 claims abstract description 60
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 2
- 229960002897 heparin Drugs 0.000 claims description 2
- 229920000669 heparin Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 2
- 238000010241 blood sampling Methods 0.000 abstract description 7
- 241000711549 Hepacivirus C Species 0.000 description 1
- 241000700721 Hepatitis B virus Species 0.000 description 1
- 241000725303 Human immunodeficiency virus Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a blood taking needle with a retractable needle head structure, which has the technical scheme that: the blood sampling device comprises a protective rod, wherein one side of the protective rod is provided with an extending hole, a needle head is arranged inside the protective rod, and one end of the needle head is fixedly sleeved with a blood sampling tube; the mounting groove is formed in one end of the protection rod, and a protection cover is connected to the inner portion of the mounting groove in a threaded mode; the adjusting part, the adjusting part sets up the one end of protection stick is through moving the inside of regulation hole with the joint piece, carry on spacingly to the protecting tube to make the syringe needle can shift out the inside of protection stick, after medical personnel had gathered blood, medical personnel only need shift out the inside of regulation hole with the joint piece this moment, the extension spring can drive syringe needle and protecting tube through the connecting plate and get back to the normal position, connect the inside at the mounting groove with the protective cover again simultaneously, can prevent that the inside remaining blood of syringe needle from the inside drippage of protection stick, medical personnel's blood of having avoided contacting the patient.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a blood taking needle with a retractable needle head structure.
Background
Blood taking needles are one of the largest medical instrument products sold worldwide at present, however, it is worth noting that the human body injury accidents of blood taking needles caused by needle breakage or improper operation of medical staff in hospitals of all countries around the world occur millions of times every year, and the statistical data published by the American medical society shows that about 100 million medical staff accidents of the medical staff are accidentally injured by blood taking needles in the United states only every year, wherein at least thousands of people are infected by hepatitis B virus, hepatitis C virus and AIDS virus attached to the needles.
For example, chinese patent publication No. CN206007256U, in which a retractable safety lancet is proposed, after the assembly finishes blood sampling, the other hand presses the elastic buckling piece at the rear part of the core cylinder to ensure that the clamping groove on the elastic buckling piece is separated from the buckle on the expanding sleeve, so that the core cylinder and the needle head can safely, reliably and smoothly slide out backwards, and through the matching of the elastic buckle sheet and the buckle at the front part of the core cylinder and the matching of the convex ring at the front end of the core cylinder and the concave stop block at the rear end of the expanding sleeve, so that the needle head after blood collection is reliably hidden in the expanding sleeve, the needle head after blood collection can be conveniently and safely discarded in the garbage can, not only prevents the medical care personnel from being punctured by the blood taking needle, but also prevents the blood taking needle from being reused to achieve the aim of asepsis and safety blood taking, however, after the blood is collected by the blood collection needle, when the medical staff hides the needle inside the expanding sleeve, the residual blood inside the needle is likely to directly drip out of the needle.
SUMMERY OF THE UTILITY MODEL
In view of the problems mentioned in the background, it is an object of the present invention to provide a lancet with a retracting needle structure to solve the problems mentioned in the background.
The technical purpose of the utility model is realized by the following technical scheme:
a lancet with a retracting needle structure, comprising: the blood sampling device comprises a protective rod, a needle holder and a needle holder, wherein one side of the protective rod is provided with an extending hole, the interior of the protective rod is provided with the needle head, and one end of the needle head is fixedly sleeved with a blood sampling tube; the mounting groove is formed in one end of the protection rod, and a protection cover is connected to the inner portion of the mounting groove in a threaded mode; the adjusting component is arranged at one end of the protective rod and used for adjusting the position of the needle head.
Through adopting above-mentioned technical scheme, through setting up adjusting part, adjusting part can adjust the position of syringe needle, makes the syringe needle can get back to the inside of protection stick after using simultaneously.
Preferably, the adjusting assembly comprises: the connecting plate is movably sleeved inside the protective rod, one end of the connecting plate is provided with a connecting hole, the connecting hole and the needle head are fixedly sleeved together, and the needle head is arranged inside the protective rod through the connecting plate; the tension spring is fixedly connected to one end inside the protection rod, and one end of the tension spring is fixedly connected with one end of the connecting plate; the pushing piece is arranged at one end of the connecting plate and used for pushing the connecting plate to move.
By adopting the technical scheme, the pushing piece is arranged, so that the needle head can be moved by the pushing piece, and the needle head is moved out of the inside of the protection rod.
Preferably, the pusher member includes: the protective tube, protective tube fixed connection be in the one end of connecting plate, the regulation hole has been seted up to the other end of protective rod, the protective tube with regulation hole movable sleeve is established together, the one end of protective tube is passed the regulation hole extends to the outside of protective rod, two promotion sticks of one end fixedly connected with of protective tube, the protective tube with heparin tube movable sleeve is established together.
Through adopting above-mentioned technical scheme, through setting up the protection stick, shift out the inside back of mounting groove with the protective cover when medical personnel, promote again and promote the stick and remove, make the protective tube remove the inside of regulation hole, the rethread removes the joint piece to the inside of regulation hole, carries on spacingly to the protective tube to make the syringe needle can shift out the inside of protection stick.
Preferably, the inner circular wall surface of the extension hole is fixedly connected with a protection tube, and the protection tube is movably sleeved with the needle head.
Through adopting above-mentioned technical scheme, through setting up the protection tube, the protection tube can be protected the inside syringe needle of protection stick.
Preferably, two moving holes are formed in the outer circle wall surface of the protection rod and communicated with the adjusting hole, a clamping block is movably sleeved inside the moving holes, and one end of the clamping block penetrates through the moving holes and extends to the inside of the adjusting hole.
Through adopting above-mentioned technical scheme, through setting up the joint piece, after medical personnel gathered blood, medical personnel only need shift out the inside of regulation hole with the joint piece this moment, and the extension spring can drive syringe needle and protective tube through the connecting plate and get back to the normal position, connects the protective cover in the inside of mounting groove again simultaneously, can prevent that the inside remaining blood of syringe needle from dripping from the inside of protection stick, has avoided medical personnel to contact patient's blood.
Preferably, a limiting groove is formed in one side of the inner side of the moving hole, a limiting block is fixedly connected to one side of the clamping block, and the limiting block and the limiting groove are movably sleeved together.
Through adopting above-mentioned technical scheme, through setting up the stopper, the stopper overlaps with the spacing groove and establishes the back together, can prevent that the joint piece from shifting out the inside in removal hole.
In summary, the utility model mainly has the following beneficial effects:
through setting up the protective rod, after medical personnel shift out the inside of mounting groove with the protective cover, promote the promotion stick again and remove, make the protective tube move the inside of adjustment hole, the inside of adjustment hole is moved to the joint piece to the rethread, it is spacing to the protective tube, thereby make the syringe needle can shift out the inside of protective rod, after medical personnel have gathered blood, medical personnel only need shift out the inside of adjustment hole with the joint piece this moment, the extension spring can drive syringe needle and protective tube through the connecting plate and get back to the normal position, connect the protective cover in the inside of mounting groove again simultaneously, can prevent that the inside remaining blood of syringe needle from dropping from the inside of protective rod, medical personnel's blood of having avoided contacting the patient.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the protective bar of the present invention;
fig. 3 is a schematic view of a part of the enlarged structure in fig. 2.
Reference numerals: 1. a protective rod; 2. an extension hole; 3. a needle head; 4. a blood collection tube; 5. mounting grooves; 6. a protective cover; 7. a connecting plate; 8. connecting holes; 9. a tension spring; 10. a protective tube; 11. an adjustment hole; 12. pushing the rod; 13. protecting the tube; 14. moving the hole; 15. a clamping block; 16. a limiting groove; 17. and a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2 and 3, a blood taking needle with a retraction needle structure comprises a protective rod 1, an extension hole 2 is formed in one side of the protective rod 1, a needle 3 is arranged inside the protective rod 1, a blood sampling tube 4 is fixedly sleeved at one end of the needle 3, a mounting groove 5 is formed in one end of the protective rod 1, a thread groove is formed in the inner circle wall surface of the mounting groove 5, a protective cover 6 is connected to the inner thread of the mounting groove 5, a thread is formed in the outer circle wall surface of the protective cover 6, an adjusting component is arranged at one end of the protective rod 1 and used for adjusting the position of the needle 3 and comprises a connecting plate 7, the connecting plate 7 is movably sleeved inside the protective rod 1, a connecting hole 8 is formed in one end of the connecting plate 7, the connecting hole 8 is fixedly sleeved with the needle 3, the needle 3 is arranged inside the protective rod 1 through the connecting plate 7, and a tension spring 9 is fixedly connected to one end inside the protective rod 1, one end of the tension spring 9 is fixedly connected with one end of the connecting plate 7, a pushing piece is arranged at one end of the connecting plate 7 and used for pushing the connecting plate 7 to move, the position of the needle head 3 can be adjusted by the adjusting assembly through the adjusting assembly, and meanwhile, the needle head 3 can return to the inside of the protective rod 1 after being used.
Referring to fig. 2 and 3, the pushing member includes a protection tube 10, the protection tube 10 is fixedly connected to one end of the connecting plate 7, the other end of the protection rod 1 is provided with an adjusting hole 11, the protection tube 10 is movably sleeved with the adjusting hole 11, one end of the protection tube 10 passes through the adjusting hole 11 and extends to the outside of the protection rod 1, one end of the protection tube 10 is fixedly connected with two pushing rods 12, the protection tube 10 is movably sleeved with the blood sampling tube 4, the inner circular wall surface of the extending hole 2 is fixedly connected with a protection tube 13, the protection tube 13 is movably sleeved with the needle 3, the outer circular wall surface of the protection rod 1 is provided with two moving holes 14, the moving holes 14 are communicated with the adjusting hole 11, the inner movable sleeve of the moving holes 14 is provided with a clamping block 15, one end of the clamping block 15 passes through the moving hole 14 and extends to the inside of the adjusting hole 11, one side of the inside of the moving hole 14 is provided with a limiting groove 16, one side of the clamping block 15 is fixedly connected with a limiting block 17, stopper 17 and 16 movable sleeves of spacing groove are established together, after medical personnel had gathered blood, medical personnel only need shift out joint piece 15 the inside of regulation hole 11 this moment, and extension spring 9 can drive syringe needle 3 and protective tube 10 through connecting plate 7 and return to the normal position, connects protective cover 6 in the inside of mounting groove 5 again simultaneously, can prevent that the inside remaining blood of syringe needle 3 from dripping from the inside of protection stick 1, has avoided medical personnel to contact patient's blood.
The working principle is as follows: referring to fig. 1-3, by providing the protection rod 1, when the medical care personnel moves the protection cover 6 out of the mounting groove 5, the pushing rod 12 is pushed to move, so that the protection tube 10 moves into the adjusting hole 11, and then the clamping block 15 moves into the adjusting hole 11 to limit the protection tube 10, so that the needle 3 can move out of the protection rod 1, when the medical care personnel collects blood, the medical care personnel only need to move the clamping block 15 out of the adjusting hole 11, the tension spring 9 can drive the needle 3 and the protection tube 10 to return to the original position through the connecting plate 7, and meanwhile, the protection cover 6 is connected inside the mounting groove 5, so that the residual blood in the needle 3 can be prevented from dripping from the inside of the protection rod 1, and the medical care personnel can be prevented from contacting the blood of the patient.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A blood lancet with a retracting needle structure, comprising:
the blood collection tube comprises a protective rod (1), wherein one side of the protective rod (1) is provided with an extension hole (2), a needle head (3) is arranged inside the protective rod (1), and one end of the needle head (3) is fixedly sleeved with a blood collection tube (4);
the mounting groove (5) is formed in one end of the protection rod (1), and a protection cover (6) is connected to the inside of the mounting groove (5) in a threaded mode;
the adjusting component is arranged at one end of the protective rod (1) and used for adjusting the position of the needle head (3).
2. The lancet with retraction needle structure of claim 1, wherein the adjustment assembly comprises:
the connecting plate (7) is movably sleeved inside the protective rod (1), one end of the connecting plate (7) is provided with a connecting hole (8), the connecting hole (8) and the needle head (3) are fixedly sleeved together, and the needle head (3) is arranged inside the protective rod (1) through the connecting plate (7);
the tension spring (9) is fixedly connected to one end inside the protection rod (1), and one end of the tension spring (9) is fixedly connected with one end of the connecting plate (7);
the pushing piece is arranged at one end of the connecting plate (7) and used for pushing the connecting plate (7) to move.
3. A lancet with a retracting needle structure in accordance with claim 2, wherein the pusher comprises:
protective tube (10), protective tube (10) fixed connection be in the one end of connecting plate (7), regulation hole (11) have been seted up to the other end of protection stick (1), protective tube (10) with regulation hole (11) activity cover is established together, the one end of protective tube (10) is passed regulation hole (11) extend to the outside of protection stick (1), two stick (12) of pushing away of one end fixedly connected with of protective tube (10), protective tube (10) with heparin tube (4) activity cover is established together.
4. The lancet with a retractable needle structure of claim 1, wherein a protection tube (13) is fixedly connected to the inner circumferential wall surface of the extension hole (2), and the protection tube (13) is movably sleeved with the needle (3).
5. The blood taking needle with the retraction needle structure as claimed in claim 3, wherein two moving holes (14) are opened on the outer circular wall surface of the protection rod (1), the moving holes (14) are communicated with the adjusting holes (11), a clamping block (15) is movably sleeved in the moving holes (14), and one end of the clamping block (15) penetrates through the moving holes (14) and extends to the inside of the adjusting holes (11).
6. The blood taking needle with the retractable needle head structure as claimed in claim 5, wherein a limiting groove (16) is formed in one side of the inner portion of the moving hole (14), a limiting block (17) is fixedly connected to one side of the clamping block (15), and the limiting block (17) and the limiting groove (16) are movably sleeved together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220149000.8U CN216984905U (en) | 2022-01-20 | 2022-01-20 | Blood taking needle with retraction needle head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220149000.8U CN216984905U (en) | 2022-01-20 | 2022-01-20 | Blood taking needle with retraction needle head structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216984905U true CN216984905U (en) | 2022-07-19 |
Family
ID=82390788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220149000.8U Expired - Fee Related CN216984905U (en) | 2022-01-20 | 2022-01-20 | Blood taking needle with retraction needle head structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216984905U (en) |
-
2022
- 2022-01-20 CN CN202220149000.8U patent/CN216984905U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220719 |