CN210871620U - Blood taking needle with telescopic needle sleeve - Google Patents
Blood taking needle with telescopic needle sleeve Download PDFInfo
- Publication number
- CN210871620U CN210871620U CN201921361136.XU CN201921361136U CN210871620U CN 210871620 U CN210871620 U CN 210871620U CN 201921361136 U CN201921361136 U CN 201921361136U CN 210871620 U CN210871620 U CN 210871620U
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- China
- Prior art keywords
- needle
- needle sleeve
- sleeve
- telescopic
- blood taking
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- 210000004369 blood Anatomy 0.000 title claims abstract description 64
- 239000008280 blood Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 206010073310 Occupational exposures Diseases 0.000 description 4
- 231100000675 occupational exposure Toxicity 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 3
- 238000001467 acupuncture Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 208000013210 hematogenous Diseases 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 208000035049 Blood-Borne Infections Diseases 0.000 description 1
- 208000019462 Occupational injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010241 blood sampling Methods 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model provides a blood taking needle with a telescopic needle sleeve in the field of blood taking needles, which comprises a blood taking needle; the end part of the needle tube is sleeved with the blood taking needle; the telescopic needle sleeve is sleeved on the needle tube; the needle handle is arranged on the outer wall of the telescopic needle sleeve; the reducing spring is sleeved on the needle tube and is positioned in the telescopic needle sleeve; the limiting strip is arranged on the outer wall of the needle tube, enables the reducing spring to be in a compressed state and is abutted against the telescopic needle sleeve; the limiting device is arranged at the top end of the telescopic needle sleeve and used for fixing the ejected telescopic needle sleeve; and the limiting button is arranged on the side wall of the telescopic needle sleeve and is connected with the limiting strip, so that the limiting strip loses efficacy, and the telescopic needle sleeve is popped out by the reducing spring to cover the blood taking needle. The utility model has the advantages that: the volume of the safe blood taking needle is effectively reduced and the manufacturing cost is reduced on the premise that medical care personnel are prevented from being punctured by the needle.
Description
Technical Field
The utility model relates to a blood taking needle, in particular to a blood taking needle with a telescopic needle sleeve.
Background
Disease diagnosis by blood collection is an effective diagnosis method widely applied to clinic, and venous blood collection is a main blood collection method, so that venous blood collection is one of necessary daily works of medical staff. However, the venous blood taking needle is used as a blood taking tool, so that blood is conveniently taken, and meanwhile, the risk of occupational exposure caused by blood sources is brought.
The occupational exposure of blood origin refers to the exposure caused by that medical care personnel accidentally stabbed the skin by a needle or other sharp instruments contaminated by infectious blood and body fluid during the working process of diagnosis, treatment and nursing. The hospital outpatient blood drawing room is used as a window for drawing blood and testing, blood drawing tasks are heavy every day, the condition of patients is complex, and the special environment enables blood-borne occupational exposure to become the most common occupational injury in the work of outpatient workers. The hematogenous occupational exposure not only brings the risk of spreading and diffusing of hematogenous diseases, but also further increases the physical and psychological burden of medical staff, and reduces the occupational happiness of the medical staff. At present, the injury accidents caused by needle breakage and improper operation of medical care personnel occur to millions of people every year in all hospitals all over the world, and the spread of blood-borne diseases is also caused.
Also there is safe blood taking needle in the tradition, but traditional safe blood taking needle exists bulky, lets patient produce the fear psychology easily, and the transportation is inconvenient, and the defect such as cost is expensive drops into clinical use very little.
Therefore, how to provide a blood taking needle with flexible needle cover realizes effectively reducing the volume of safe blood taking needle under the prerequisite of avoiding medical personnel to be pricked by the acupuncture, reduces manufacturing cost, becomes a problem that awaits solution urgently.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in providing a blood taking needle with flexible needle cover, realizes avoiding medical personnel by under the prerequisite of acupuncture, effectively reduces the volume of safe blood taking needle, reduces manufacturing cost.
The utility model discloses a realize like this: a blood collection needle with a retractable needle sheath, comprising:
a blood collection needle;
the end part of the needle tube is sleeved with the blood taking needle;
the telescopic needle sleeve is sleeved on the needle tube;
the needle handle is arranged on the outer wall of the telescopic needle sleeve;
the reducing spring is sleeved on the needle tube and is positioned in the telescopic needle sleeve;
the limiting strip is arranged on the outer wall of the needle tube, enables the reducing spring to be in a compressed state and is abutted against the telescopic needle sleeve;
the limiting device is arranged at the top end of the telescopic needle sleeve and used for fixing the ejected telescopic needle sleeve;
and the limiting button is arranged on the side wall of the telescopic needle sleeve and is connected with the limiting strip, so that the limiting strip loses efficacy, and the telescopic needle sleeve is ejected out through the reducing spring to cover the blood taking needle.
Further, the retracting needle hub includes:
the first needle sleeve is abutted against the reducing spring, and the side wall of the first needle sleeve is provided with the limiting button;
the second needle sleeve is arranged in the first needle sleeve and is abutted against the reducing spring;
and the third needle sleeve is arranged in the second needle sleeve and is abutted against the reducing spring.
Further, the sum of the lengths of the second needle sleeve and the third needle sleeve when the second needle sleeve and the third needle sleeve are ejected is larger than the length of the blood taking needle.
Further, stop device includes:
the first limiting sheet group is arranged at the top end of the first needle sleeve;
and the second limiting sheet group is arranged at the top end of the second needle sleeve.
Furthermore, the first limiting sheet group and the second limiting sheet group are both unidirectional limiting sheets.
Further, the reducing spring includes:
one end of the first spring section is abutted with the first needle sleeve, and the diameter of the first spring section is smaller than that of the first needle sleeve and larger than that of the second needle sleeve;
one end of the second spring section is connected with the first spring section, and the diameter of the second spring section is smaller than that of the second needle sleeve and larger than that of the third needle sleeve;
and one end of the third spring section is connected with the second spring section, the other end of the third spring section is abutted against the limiting strip, and the diameter of the third spring section is smaller than that of the third needle sleeve.
The utility model has the advantages that: through setting up reducing spring, spacing, flexible needle cover and limit button realize pressing limit button makes spacing lose the efficiency, and then makes the reducing spring of compression pop out second needle cover and third needle cover and cover the blood taking needle, avoids medical personnel to be pricked by the blood taking needle mistake, and simple structure, has effectively reduced the volume of safe blood taking needle, has reduced the manufacturing cost of safe blood taking needle.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the blood taking needle with the retractable needle sleeve in the using state of the blood taking needle of the utility model.
Fig. 2 is a schematic structural view of the safety state of the blood taking needle with the retractable needle sleeve of the present invention.
Fig. 3 is a schematic structural diagram of the reducing spring of the present invention.
Fig. 4 is a schematic structural view of the telescopic needle guard of the present invention.
Description of the labeling:
100-a blood taking needle with a telescopic needle sleeve, 1-a blood taking needle, 2-a needle tube, 3-a telescopic needle sleeve, 4-a needle handle, 5-a reducing spring, 6-a limiting strip, 7-a limiting device, 8-a limiting button, 31-a first needle sleeve, 32-a second needle sleeve, 33-a third needle sleeve, 51-a first spring section, 52-a second spring section, 53-a third spring section, 71-a first limiting sheet group, 72-a second limiting sheet group.
Detailed Description
Referring to fig. 1 to 4, a preferred embodiment of a blood collection needle 100 with a retractable needle sheath of the present invention comprises:
a blood collection needle 1; the blood taking needle 1 is used for puncturing a blood vessel to collect blood;
the end part of the needle tube 2 is sleeved with the blood taking needle 1; the needle tube 2 is used for conveying blood;
the telescopic needle sleeve 3 is sleeved on the needle tube 2; the telescopic needle sleeve 3 is used for covering the blood taking needle 1, so that the phenomenon of wrong puncture is avoided;
the needle handle 4 is arranged on the outer wall of the telescopic needle sleeve 3, so that medical staff can conveniently insert the blood taking needle 1 into a blood vessel;
the reducing spring 5 is sleeved on the needle tube 2 and is positioned in the telescopic needle sleeve 3; the reducing spring 5 is used for ejecting the telescopic needle sleeve 3 in sections;
the limiting strip 6 is arranged on the outer wall of the needle tube 2, enables the reducing spring 5 to be in a compressed state and is abutted against the telescopic needle sleeve 3;
the limiting device 7 is arranged at the top end of the telescopic needle sleeve 3 and used for fixing the ejected telescopic needle sleeve 3;
and the limiting button 8 is arranged on the side wall of the telescopic needle sleeve 3 and is connected with the limiting strip 6, so that the limiting strip 6 loses efficacy, and the telescopic needle sleeve 3 is ejected out through the reducing spring 5 to cover the blood taking needle 1.
The telescopic needle sheath 3 comprises:
the first needle sleeve 31 is abutted against the reducing spring 5, and the side wall of the first needle sleeve is provided with the limiting button 8;
the second needle sleeve 32 is arranged in the first needle sleeve 31 and is abutted against the reducing spring 5;
and the third needle sleeve 33 is arranged in the second needle sleeve 32 and is abutted against the reducing spring 5. The telescopic needle sleeve 3 is in a contraction state at ordinary times and is in an extension state only after the limit button 8 is pressed.
The sum of the lengths of the second needle sleeve 32 and the third needle sleeve 33 when being ejected is larger than the length of the blood collection needle 1, so that the medical staff is prevented from being punctured by the needle.
The limiting device 7 comprises:
the first limiting sheet group 71 is arranged at the top end of the first needle sleeve 31;
and the second stop block group 72 is arranged at the top end of the second needle sleeve 32.
The first limiting sheet group 71 and the second limiting sheet group 72 are both one-way limiting sheets, so that the retractable needle guard 3 cannot retract after extending outwards.
The reducing spring 5 includes:
a first spring section 51, one end of which is abutted against the first needle sleeve 31, and the diameter of which is smaller than that of the first needle sleeve 31 and larger than that of the second needle sleeve 32;
a second spring section 52 having one end connected to the first spring section 51, and having a diameter smaller than the second needle hub 32 and larger than the third needle hub 33;
and one end of the third spring section 53 is connected with the second spring section 52, the other end of the third spring section is abutted against the limiting strip 6, and the diameter of the third spring section is smaller than that of the third needle sleeve 33. The volume of the reducing spring 5 after compression is smaller than that of a common spring, and the elasticity is larger.
The utility model discloses the theory of operation:
medical personnel's blood sampling is accomplished, extracts press limit button 8 in the time of blood taking needle 1, limit button 8 tears or presses absolutely spacing 6, even spacing 6 loses the efficiency, and then makes compressed reducing spring 5 pop out second needle cover 32 and third needle cover 33 to cover completely blood taking needle 1, meanwhile first spacing piece group 71 is blocking first spring section 51, second spacing piece group 72 is blocking second spring section 52, and then is fixed flexible needle cover 3.
To sum up, the utility model has the advantages that: through setting up reducing spring, spacing, flexible needle cover and limit button realize pressing limit button makes spacing lose the efficiency, and then makes the reducing spring of compression pop out second needle cover and third needle cover and cover the blood taking needle, avoids medical personnel to be pricked by the blood taking needle mistake, and simple structure, has effectively reduced the volume of safe blood taking needle, has reduced the manufacturing cost of safe blood taking needle.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (6)
1. The utility model provides a blood taking needle with flexible needle cover which characterized in that: the method comprises the following steps:
a blood collection needle;
the end part of the needle tube is sleeved with the blood taking needle;
the telescopic needle sleeve is sleeved on the needle tube;
the needle handle is arranged on the outer wall of the telescopic needle sleeve;
the reducing spring is sleeved on the needle tube and is positioned in the telescopic needle sleeve;
the limiting strip is arranged on the outer wall of the needle tube, enables the reducing spring to be in a compressed state and is abutted against the telescopic needle sleeve;
the limiting device is arranged at the top end of the telescopic needle sleeve and used for fixing the ejected telescopic needle sleeve;
and the limiting button is arranged on the side wall of the telescopic needle sleeve and is connected with the limiting strip, so that the limiting strip loses efficacy, and the telescopic needle sleeve is ejected out through the reducing spring to cover the blood taking needle.
2. A lancet with a retractable needle sheath as recited in claim 1, wherein: the telescopic needle sheath comprises:
the first needle sleeve is abutted against the reducing spring, and the side wall of the first needle sleeve is provided with the limiting button;
the second needle sleeve is arranged in the first needle sleeve and is abutted against the reducing spring;
and the third needle sleeve is arranged in the second needle sleeve and is abutted against the reducing spring.
3. A lancet with a retractable needle sheath as recited in claim 2, wherein: the sum of the lengths of the second needle sleeve and the third needle sleeve when being ejected is larger than the length of the blood taking needle.
4. A lancet with a retractable needle sheath as recited in claim 2, wherein: the stop device includes:
the first limiting sheet group is arranged at the top end of the first needle sleeve;
and the second limiting sheet group is arranged at the top end of the second needle sleeve.
5. A lancet with a retractable needle sheath as recited in claim 4, wherein: the first limiting sheet group and the second limiting sheet group are both one-way limiting sheets.
6. A lancet with a retractable needle sheath as recited in claim 2, wherein: the reducing spring comprises:
one end of the first spring section is abutted with the first needle sleeve, and the diameter of the first spring section is smaller than that of the first needle sleeve and larger than that of the second needle sleeve;
one end of the second spring section is connected with the first spring section, and the diameter of the second spring section is smaller than that of the second needle sleeve and larger than that of the third needle sleeve;
and one end of the third spring section is connected with the second spring section, the other end of the third spring section is abutted against the limiting strip, and the diameter of the third spring section is smaller than that of the third needle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921361136.XU CN210871620U (en) | 2019-08-21 | 2019-08-21 | Blood taking needle with telescopic needle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921361136.XU CN210871620U (en) | 2019-08-21 | 2019-08-21 | Blood taking needle with telescopic needle sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210871620U true CN210871620U (en) | 2020-06-30 |
Family
ID=71325924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921361136.XU Expired - Fee Related CN210871620U (en) | 2019-08-21 | 2019-08-21 | Blood taking needle with telescopic needle sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210871620U (en) |
-
2019
- 2019-08-21 CN CN201921361136.XU patent/CN210871620U/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: 20200630 |