CN211432943U - Safety blood taking needle - Google Patents
Safety blood taking needle Download PDFInfo
- Publication number
- CN211432943U CN211432943U CN201921182953.9U CN201921182953U CN211432943U CN 211432943 U CN211432943 U CN 211432943U CN 201921182953 U CN201921182953 U CN 201921182953U CN 211432943 U CN211432943 U CN 211432943U
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- Prior art keywords
- needle
- sliding sleeve
- cylinder
- handle
- elastic sheet
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- 239000008280 blood Substances 0.000 title claims abstract description 31
- 210000004369 blood Anatomy 0.000 title claims abstract description 31
- 238000009434 installation Methods 0.000 claims description 4
- 238000010241 blood sampling Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000012634 fragment Substances 0.000 description 15
- 230000000474 nursing effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000013013 elastic material Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000002699 waste material Substances 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
- 230000000694 effects Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
A safety blood taking needle comprises a needle tube and a needle handle, wherein the inside of the needle handle is hollow, one end of the needle handle is connected with the needle tube, and the other end of the needle handle is provided with a pipeline connecting port for connecting with an external conveying pipe; the needle tube is sleeved with a needle cylinder, a sliding sleeve sleeved on the needle tube is further arranged in the needle cylinder, a spring sleeved on the needle tube is arranged in the sliding sleeve, one end of the needle cylinder is connected to the needle handle in a clamping mode, an opening convenient for the needle tube and the sliding sleeve to extend out is formed in the other end of the needle cylinder, an opening convenient for the needle tube to extend out is formed in one end of the sliding sleeve, a spring piece type button structure convenient to clamp on the needle cylinder is arranged at the other end of the sliding sleeve, and a fixing hole matched with the. After blood sampling is finished, the elastic sheet type button structure is pressed, the sliding sleeve slides forwards due to the elasticity of the spring, the needle tube is completely protected, the safety of clinical operators is ensured, the risk of being injured by a needle is prevented, and the operation is simple and convenient; simple structure, small product volume and low production cost.
Description
Technical Field
The utility model relates to a blood taking needle, in particular to a safe blood taking needle.
Background
Currently, a technique of taking blood from a patient and assaying with a blood taking needle is widely used in hospitals.
The traditional blood taking needle generally operates that a nursing staff pulls out a protective sleeve of a needle head and then takes blood by puncture, and blood automatically flows into a blood taking tube due to the negative pressure effect in the blood taking tube; after blood is collected, the blood collecting tube is pulled out, and then the puncture needle end is pulled out; however, the traditional blood taking needle is generally put into a protective sleeve again, but the operation is extremely inconvenient, the protective sleeve and the needle head are difficult to align, nursing personnel are easily stabbed in the process, infection is caused, and great risk exists; the operation is extremely inconvenient, a large amount of time is wasted for nursing staff, so that the ordinary nursing staff can be directly discarded in a sharp instrument storage box after blood is collected and then sent to a waste product station for treatment, the needle head stained with the blood in the process is always exposed in the air, the pollution risk of blood leakage is increased, and pollution can be caused in waste product treatment.
Disclosure of Invention
The utility model aims to solve the technical problem that to the not enough of prior art, provide one kind to the nursing staff with by the blood sampling personnel safer, reduce as far as possible by the painful and uncomfortable of blood sampling personnel, reduction in production cost's safe blood taking needle simultaneously.
The technical problem to be solved by the utility model is realized through the following technical scheme. The utility model relates to a safety blood taking needle, which comprises a needle tube and a needle handle, wherein the inside of the needle handle is hollow, one end of the needle handle is connected with the needle tube, and the other end of the needle handle is provided with a pipeline connecting port for connecting with an external conveying pipe; the needle tube is sleeved with a needle cylinder, a sliding sleeve sleeved on the needle tube is further arranged in the needle cylinder, a spring sleeved on the needle tube is arranged in the sliding sleeve, one end of the needle cylinder is connected to the needle handle in a clamping mode, an opening convenient for the needle tube and the sliding sleeve to extend out is formed in the other end of the needle cylinder, an opening convenient for the needle tube to extend out is formed in one end of the sliding sleeve, a spring piece type button structure convenient to clamp on the needle cylinder is arranged at the other end of the sliding sleeve, and a fixing hole matched with the.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, to above the safe blood taking needle, still be provided with on the inner tube wall of open side cylinder and prevent moving back the step of preventing that the sliding sleeve from popping out the back and withdrawing, be provided with on the sliding sleeve with prevent moving back step complex shell fragment formula and prevent moving back the structure.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, to above the safe blood taking needle, the inner tube wall of cylinder still is provided with the gliding spout of shell fragment formula button structure of being convenient for, and the both ends setting of spout is in the inboard of cylinder.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, to above the safe blood taking needle, the shell fragment formula is prevented moving back the structure and is a rectangle shell fragment, the one end and the sliding sleeve fixed connection of rectangle shell fragment, and the other end of rectangle shell fragment extends to the sliding sleeve outside.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, to above the safe blood taking needle, the shell fragment formula button structure be a strip shell fragment, the one end and the sliding sleeve fixed connection of strip shell fragment, the other end of strip shell fragment extends and installs the button of being convenient for the joint in the fixed orifices to the sliding sleeve outside.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, to above the safe blood taking needle, be provided with on the inner tube wall of cylinder one end tip and be convenient for the installation and clamp the annular arch on the needle handle, be provided with on the needle handle with the protruding complex annular groove of annular.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, to above the safe blood taking needle, still the cover is equipped with the sheath on the outside needle tubing of sliding sleeve, the trompil department of sliding sleeve is provided with the installing port of the sheath installation of being convenient for.
The technical problem to be solved by the utility model can be further realized by the following technical scheme, to above the safe blood taking needle, the handle that is convenient for hold by fixedly connected with on the needle handle.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the elastic sheet type button structure is adopted, the handle is arranged on the outer side of the needle handle, the operation habit of nursing personnel is not changed, the sliding sleeve can be ejected by slightly pressing the button after blood collection, and the blood collection device is simple and convenient;
2. the anti-retreating mechanism is arranged, the sliding sleeve is firmly clamped after being ejected out, and cannot slide again under the action of external force;
3. the structure is simple and easy to form, and the production cost is greatly reduced;
4. the needle cylinder and the needle handle are connected and smoothly transited, and the front ends of the needle cylinder and the sliding sleeve are provided with a round angle, so that the appearance is smooth and has no burrs; the skin of the person who is sampled is more comfortable when the skin of the person who is sampled is contacted with the skin.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an exploded view of the present invention;
fig. 3 is a sectional view of the internal structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all 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 to 3, a safety lancet, which comprises a needle tube 6 and a needle handle 14, wherein the inside of the needle handle 14 is hollow, one end of the needle handle 14 is connected with the needle tube 6, and the other end of the needle handle 14 is provided with a pipeline connecting port 9 for connecting with an external delivery pipe; the needle tube 6 is sleeved with a needle cylinder 1, a sliding sleeve 4 sleeved on the needle tube 6 is further arranged in the needle cylinder 1, a spring 7 sleeved on the needle tube 6 is arranged in the sliding sleeve 4, one end of the needle cylinder 1 is connected to a needle handle 14 in a clamped mode, the other end of the needle cylinder 1 is provided with an opening facilitating the extension of the needle tube 6 and the sliding sleeve 4, one end of the sliding sleeve 4 is provided with a hole facilitating the extension of the needle tube 6, the other end of the sliding sleeve 4 is provided with a spring sheet type button structure 5 facilitating the clamping of the spring sheet type button structure on the needle cylinder 1, and the needle cylinder. The sliding sleeve 4 is long enough, so that when the sliding sleeve 4 slides to the front end of the needle cylinder 1, the needle point is completely hidden in the needle cylinder 1, namely the sliding length of the sliding sleeve 4 in the needle cylinder 1 is greater than the length of the needle, thereby ensuring that the needle point is completely hidden in the sliding sleeve 4 after the sliding sleeve 4 slides outwards of the needle cylinder 1 under the elastic force of the spring 7; before use, the needle cylinder 1 is sleeved on the needle tube 6, and one end of the needle cylinder is clamped on the needle handle 14; the sliding sleeve 4 is sleeved on a needle tube 6 in the needle cylinder 1 and is clamped into the fixing hole 2 for fixing through the elastic sheet type button structure 5; the spring 7 is sleeved on the needle tube 6 in the sliding sleeve 4 and is in a compressed state, and the acupuncture end of the needle tube 6 extends out of the needle cylinder 1 and the sliding sleeve 4, so that the puncture blood sampling is convenient; after the needle tube is used, the elastic sheet type button structure 5 is pressed, the sliding sleeve 4 loses the fixing function and slides towards the outer side of the needle tube 1 under the rebounding function of the spring 7, so that the needle tube 6 exposed at the outer side is covered, and medical staff or other staff are prevented from being punctured.
The inner cylinder wall of the needle cylinder 1 is further provided with a sliding chute 10 which is convenient for the elastic sheet type button structure 5 to slide, and two ends of the sliding chute 10 are arranged on the inner side of the needle cylinder 1. The two ends of the sliding chute 10 do not extend to the outer side of the needle cylinder 1, so that the sliding sleeve 4 has the functions of sliding orientation and limiting, and the sliding sleeve 4 is prevented from falling out of the needle cylinder 1; in addition, the sliding of the sliding sleeve 4 in the needle cylinder 1 is translational sliding without shaking, so that the risk caused by uncontrollable movement is reduced; secondly, the length of the sliding groove 10 is long enough to ensure that the needle point is completely hidden in the sliding sleeve 4 after the sliding sleeve 4 slides outwards the needle cylinder 1 under the elastic force of the spring 7.
An anti-retreat step 13 for preventing the sliding sleeve 4 from being withdrawn after being popped up is further arranged on the inner cylinder wall of the needle cylinder 1 at the opening side, and an elastic sheet type anti-retreat structure 12 matched with the anti-retreat step 13 is arranged on the sliding sleeve 4. The anti-retreat step 13 can be provided with a plurality of layers, namely, a step-shaped groove is downwards arranged on the inner cylinder wall of the needle cylinder 1 at the opening side and is used for matching with the elastic sheet type anti-retreat structure 12 when the sliding sleeve 4 slides over the position to tightly push the elastic sheet type anti-retreat structure 12 so as to prevent the sliding sleeve 4 from sliding into the needle cylinder 1 again, thereby preventing reuse and realizing real disposable use; in this application reality, only set up one deck and prevent moving back step 13, in the actual operation, can set up as required.
The sliding groove 10 and the anti-moving back step 13 are respectively arranged at two sides in the needle cylinder 1, and the elastic sheet type button structure 5 and the elastic sheet type anti-moving back structure 12 are respectively arranged at two sides of the sliding sleeve 4, so as to be respectively matched with each other.
The elastic sheet type anti-back structure 12 is a rectangular elastic sheet with certain elasticity, one end of the rectangular elastic sheet is fixedly connected with the sliding sleeve 4, and the other end of the rectangular elastic sheet extends towards the outer side of the sliding sleeve 4. Before the use, the tip of rectangle shell fragment hugs closely the inner wall of cylinder 1 to make sliding sleeve 4 slide the back, can block into and prevent moving back step 13, block sliding sleeve 4 and withdraw.
The elastic sheet type button structure 5 is a strip-shaped elastic sheet with certain elasticity, one end of the strip-shaped elastic sheet is fixedly connected with the sliding sleeve 4, and the other end of the strip-shaped elastic sheet extends towards the outer side of the sliding sleeve 4 and is provided with a button which is convenient to clamp in the fixing hole 2. Before use, the strip-shaped elastic body is tightly attached to the inner wall of the needle cylinder 1 at the position of the fixing hole 2, so that the button is tightly propped in the fixing hole 2, and after the button is manually pressed away from the fixing hole 2, the button can directionally slide along the sliding groove 10; in practice, the button is a square plastic block, and the fixing hole 2 is a square hole slightly larger than the square plastic block.
The inner cylinder wall of one end part of the needle cylinder 1 is provided with an annular bulge 11 which is convenient to install and clamp on the needle handle 14, and the needle handle 14 is provided with an annular groove matched with the annular bulge 11. The needle cylinder 1 is clamped on the needle handle 14 through the matching of the annular bulge 11 and the annular groove, and the position of the sliding sleeve 4 and the spring 7 on the inner wall is limited.
A sheath 3 is further sleeved on the needle tube 6 outside the sliding sleeve 4, and an installation opening convenient for installing the sheath 3 is arranged at the opening of the sliding sleeve 4. The sheath 3 is clamped on the sliding sleeve 4 through the mounting opening before use, and plays a role in protecting the needle point of the needle tube 6 before use and in the transportation process.
The needle handle 14 is also fixedly connected with a handle 8 which is convenient to hold, so that medical staff can hold the needle conveniently in the puncture process.
The needle cylinder 1, the sliding groove 10, the anti-retreat step 13, the fixing hole 2 and the annular bulge 11 are integrally formed and made of elastic materials; the needle handle 14, the handle 8 and the pipeline connecting port 9 are integrally formed and made of elastic materials; the sliding sleeve 4, the spring sheet type button structure 5 and the spring sheet type anti-retreat structure 12 are integrally formed and made of elastic materials; meanwhile, each part is connected and smoothly transited, and the front ends of the needle cylinder 1 and the sliding sleeve 4 are provided with a round angle, so that the appearance is smooth and has no burrs; the skin of the person who is sampled is more comfortable when the skin of the person who is sampled is contacted with the skin.
Pull out sheath 3 before the blood sampling, handle 8 on the hand-held needle handle 14 punctures by the blood sampling personnel, blood sampling is carried out, press shell fragment formula button structure 5 on the sliding sleeve 4 after the blood sampling is accomplished, at this moment, shell fragment formula button structure 5 unblock on the sliding sleeve 4, under the effort promotion of spring 7, sliding sleeve 4 is the translation slip forward, when sliding to the end of spout 10, spout 10 blocks shell fragment formula button structure 5, make sliding sleeve 4 can not continue to slide forward, structure 12 is prevented moving back by the shell fragment formula on the sliding sleeve 4 simultaneously just blocks on syringe 1 prevents moving back step 13, make sliding sleeve 4 can not slide backward, thereby make sliding sleeve 4 can not slide backward or slide forward again, thereby prevent this blood sampling needle by used once more, accomplish real disposable.
Claims (8)
1. A safety blood taking needle is characterized in that: the blood taking needle comprises a needle tube and a needle handle, wherein the interior of the needle handle is hollow, one end of the needle handle is connected with the needle tube, and the other end of the needle handle is provided with a pipeline connecting port for connecting with an external conveying pipe; the needle tube is sleeved with a needle cylinder, a sliding sleeve sleeved on the needle tube is further arranged in the needle cylinder, a spring sleeved on the needle tube is arranged in the sliding sleeve, one end of the needle cylinder is connected to the needle handle in a clamping mode, an opening convenient for the needle tube and the sliding sleeve to extend out is formed in the other end of the needle cylinder, an opening convenient for the needle tube to extend out is formed in one end of the sliding sleeve, a spring piece type button structure convenient to clamp on the needle cylinder is arranged at the other end of the sliding sleeve, and a fixing hole matched with the.
2. A safety lancet according to claim 1, wherein: the inner cylinder wall of the needle cylinder at the opening side is also provided with an anti-retreat step for preventing the sliding sleeve from being withdrawn after being popped out, and the sliding sleeve is provided with an elastic sheet type anti-retreat structure matched with the anti-retreat step.
3. A safety lancet according to claim 1 or 2, characterised in that: the inner cylinder wall of the needle cylinder is also provided with a sliding chute convenient for the sliding of the elastic sheet type button structure, and two ends of the sliding chute are arranged on the inner side of the needle cylinder.
4. A safety lancet according to claim 2, wherein: the elastic sheet type anti-return structure is a rectangular elastic sheet, one end of the rectangular elastic sheet is fixedly connected with the sliding sleeve, and the other end of the rectangular elastic sheet extends towards the outer side of the sliding sleeve.
5. A safety lancet according to claim 1, wherein: the elastic sheet type button structure is a strip-shaped elastic sheet, one end of the strip-shaped elastic sheet is fixedly connected with the sliding sleeve, and the other end of the strip-shaped elastic sheet extends towards the outer side of the sliding sleeve and is provided with a button which is convenient to clamp in the fixing hole.
6. A safety lancet according to claim 1, wherein: the inner cylinder wall at one end of the needle cylinder is provided with an annular bulge which is convenient to install and clamp on the needle handle, and the needle handle is provided with an annular groove matched with the annular bulge.
7. A safety lancet according to claim 1, wherein: the needle tube outside the sliding sleeve is also sleeved with a sheath, and the opening of the sliding sleeve is provided with a mounting hole for facilitating the installation of the sheath.
8. A safety lancet according to claim 1, wherein: the needle handle is also fixedly connected with a handle which is convenient to hold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921182953.9U CN211432943U (en) | 2019-07-25 | 2019-07-25 | Safety blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921182953.9U CN211432943U (en) | 2019-07-25 | 2019-07-25 | Safety blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211432943U true CN211432943U (en) | 2020-09-08 |
Family
ID=72309425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921182953.9U Active CN211432943U (en) | 2019-07-25 | 2019-07-25 | Safety blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211432943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115804596A (en) * | 2022-12-09 | 2023-03-17 | 安徽宏宇五洲医疗器械股份有限公司 | Disposable automatic resilience type safety blood taking needle |
-
2019
- 2019-07-25 CN CN201921182953.9U patent/CN211432943U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115804596A (en) * | 2022-12-09 | 2023-03-17 | 安徽宏宇五洲医疗器械股份有限公司 | Disposable automatic resilience type safety blood taking needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: LIANYUNGANG TIANNUO OPTICAL INSTRUMENT Co.,Ltd. Assignor: JIANGSU SUYUN MEDICAL MATERIALS Co.,Ltd. Contract record no.: X2024980015881 Denomination of utility model: A safe blood collection needle Granted publication date: 20200908 License type: Common License Record date: 20240920 |