CN104983431A - Press type blood collection needle device - Google Patents
Press type blood collection needle device Download PDFInfo
- Publication number
- CN104983431A CN104983431A CN201510349296.2A CN201510349296A CN104983431A CN 104983431 A CN104983431 A CN 104983431A CN 201510349296 A CN201510349296 A CN 201510349296A CN 104983431 A CN104983431 A CN 104983431A
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- CN
- China
- Prior art keywords
- sliding sleeve
- needle body
- needle
- housing
- guide
- 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.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150274—Manufacture or production processes or steps for blood sampling devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150572—Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150633—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
- A61B5/150641—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position
- A61B5/150656—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position semi-automatically triggered, i.e. in which the triggering of the protective sleeve requires a deliberate action by the user, e.g. manual release of spring-biased extension means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15107—Piercing being assisted by a triggering mechanism
- A61B5/15111—Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
- A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a press type blood collection needle device which comprises a shell, a sliding sleeve and a needle body. A needle head is arranged at the front end of the needle body. A first guide limiting channel where the sliding sleeve axially moves is arranged in an inner cavity of the shell and enables the front end of the sliding sleeve to stretch out of the shell. A second guide limiting channel where the needle body axially moves is arranged in the sliding sleeve and enables the needle head to stretch out of the front end of the sliding sleeve. The needle body is provided with an elastic expanding arm which expands towards the front end of the inner cavity of the shell. The rear wall of the sliding sleeve is provided with a notch groove used for limiting the end of the elastic expanding arm during assembling. A disengagement rod which is used for enabling the elastic expanding arm on the needle body to be disengaged from the notch groove and to enter the second guide limiting channel when the front end of the sliding sleeve retracts into the shell is arranged in the shell. A spring used for pushing the needle body to move forwards so as to enable the needle head to pierce out of the shell from the front end of the sliding sleeve is arranged between the needle body and the bottom of the inner cavity of the shell. The press type blood collection needle device is simple in structure, easy to obtain, convenient to assemble and safe to use, and is provided with a small number of components.
Description
[technical field]
The present invention relates to a kind of pressing type blood lancet device.
[background technology]
At present, generally disposable blood taking needle is coordinated to use by blood collecting pen during domestic regular medication blood sampling, this hemostix in use, disposable blood taking needle is arranged on the head of blood collecting pen, disposable blood taking needle is taken off after transmitting, then load onto new blood taking needle to reuse, because blood collecting pen repeatedly uses, easily cause many people cross infection.
Must a people one when China's Ministry of Public Health specifies clinical acquisitions peripheral blood at present, must not many people share, but also there is a problem in this disposable lancing device, disposable blood taking needle completes primary emission, just ejecting after piercing outside blood collecting pen and cannot retract, the needle point after using is exposed to outside, needs artificial treatment to be pulled up by syringe needle, because the syringe needle after blood sampling exposes, staff is easy to careless bundle and arrives when processing, can cause cross infection, there is certain potential safety hazard.So, the retractible disposable blood collecting pen of syringe needle after various use has been there is in prior art, as the Chinese invention patent " disposable safe type blood taking needle " that application number is 03141465.6, the patent No. is the disposable blood taking needle that the Chinese invention patent " needle tip retracts type disposable safe blood taking needle and primary emission type safety blood taking pen " of ZL200410064671.0 all discloses a kind of retractable needle after transmitting, but the blood taking needle structure of above-mentioned patent is compact not, and the parts related to are relatively many, coordinate blood collecting pen to use as also needed in latter patent simultaneously, structure relative complex.
Therefore, be necessary to solve as above problem.
[summary of the invention]
Instant invention overcomes the deficiency of above-mentioned technology, provide a kind of pressing type blood lancet device, its structure is simple and easy to realize, and building block is few, easy to assembly, use safety.
For achieving the above object, present invention employs following technical proposal:
A kind of pressing type blood lancet device, include housing 1, sliding sleeve 2, and needle body 3, described needle body 3 front end is provided with syringe needle 31, described housing 1 inner chamber is provided with for moving axially and the first guide and limit passage 11 outside housing 1 can be stretched out in sliding sleeve 2 front end for described sliding sleeve 2, be provided with for moving axially for described needle body 3 and the syringe needle 31 second guide and limit passage 21 that can stretch out from sliding sleeve 2 front end in described sliding sleeve 2, described needle body 3 is provided with the elasticity exhibition arm 32 launched to described housing 1 inner chamber front end, when described sliding sleeve 2 rear wall is provided with for assembling, spacing gap slot 22 is carried out to described elasticity exhibition arm 32 end, the release lever 12 entered in described second guide and limit passage 21 for making elasticity exhibition arm 32 on described needle body 3 depart from from described gap slot 22 when described sliding sleeve 2 front end is set back in described housing 1 is provided with in described housing 1, be provided with between described needle body 3 and described housing 1 intracavity bottom and move forward to make described syringe needle 31 to go out spring 4 housing 1 from terminal spine before described sliding sleeve 2 for promoting described needle body 3.
A kind of pressing type blood lancet device as above, described sliding sleeve 2 lateral wall is provided with projection 23, described first guide and limit passage 11 medial wall is provided with the groove 13 coordinating with described projection 23 and depart from from described housing 1 for limiting described sliding sleeve 2, and described projection 23 is provided with when being fitted in described first guide and limit passage 11 for described sliding sleeve 2 is convenient to the slide guide face 231 that projection 23 enters into described groove 13.
A kind of pressing type blood lancet device as above, described projection 23 is two, and it is arranged on opposing two lateral walls of described sliding sleeve 2, and described groove 13 is also two, and it is arranged in the two lateral walls of described first guide and limit passage 11.
A kind of pressing type blood lancet device as above, described elasticity exhibition arm 32 is 2, and its circumference array is arranged on described needle body 3, and the gap slot 22 on described sliding sleeve 2 rear wall also corresponds to two.
A kind of pressing type blood lancet device as above, described blood lancet device also includes needle guard 5, and described needle guard 5 penetrates from described sliding sleeve 2 front end and is set in described syringe needle 31.
Compared with prior art, the invention has the beneficial effects as follows:
1, this case building block is few, easy to assembly, described housing cavity is provided with the first guide and limit passage, be convenient to moving axially of sliding sleeve, the second guide and limit passage is provided with in sliding sleeve, be convenient to moving axially of needle body, during assembling, on needle body, elasticity exhibition arm is against gap slot, between spring is arranged on bottom needle body and housing cavity, during use, firmly housing is pressed to human body skin direction, elasticity exhibition arm departs from from described gap slot and enters in described second guide and limit passage under the effect of release lever, needle body moves forward rapidly under described acting force of the spring, syringe needle goes out from terminal spine before sliding sleeve, thus puncture human body skin realization blood sampling, it is easy to use, then needle body drives needle retractable to enter in described sliding sleeve under the counteracting force of the second guide and limit passage, it is safe and reliable.
2, sliding sleeve lateral wall is provided with projection, described first guide and limit passage medial wall is provided with groove, be convenient to coordinate to limit described sliding sleeve with described projection depart from from described housing, described projection is provided with slide guide face, is convenient to make projection be easy to enter into described groove when described sliding sleeve is fitted in described first guide and limit passage.
3, projection is two, and it is arranged on opposing two lateral walls of described sliding sleeve, and described groove is two, and it is arranged in the two lateral walls of described first guide and limit passage, so, is symmetrical arranged the balance strengthening sliding sleeve.
4, elasticity exhibition arm is 2, and its circumference array is arranged on described needle body, and the gap slot on described sliding sleeve rear wall also corresponds to two, so, is symmetrical arranged the balance strengthening needle body.
[accompanying drawing explanation]
Fig. 1 is blast diagram of the present invention.
Fig. 2 is an assembling schematic diagram of the present invention.
Fig. 3 is one of the generalized section of A-A in Fig. 2 of the present invention.
Fig. 4 is the generalized section two of A-A in Fig. 2 of the present invention
[detailed description of the invention]
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technical staff of the same trade:
As shown in Figure 1, a kind of pressing type blood lancet device, include housing 1, sliding sleeve 2, and needle body 3, described needle body 3 front end is provided with syringe needle 31, described housing 1 inner chamber is provided with for moving axially and the first guide and limit passage 11 outside housing 1 can be stretched out in sliding sleeve 2 front end for described sliding sleeve 2, be provided with for moving axially for described needle body 3 and the syringe needle 31 second guide and limit passage 21 that can stretch out from sliding sleeve 2 front end in described sliding sleeve 2, described needle body 3 is provided with the elasticity exhibition arm 32 launched to described housing 1 inner chamber front end, when described sliding sleeve 2 rear wall is provided with for assembling, spacing gap slot 22 is carried out to described elasticity exhibition arm 32 end, the release lever 12 entered in described second guide and limit passage 21 for making elasticity exhibition arm 32 on described needle body 3 depart from from described gap slot 22 when described sliding sleeve 2 front end is set back in described housing 1 is provided with in described housing 1, be provided with between described needle body 3 and described housing 1 intracavity bottom and move forward to make described syringe needle 31 to go out spring 4 housing 1 from terminal spine before described sliding sleeve 2 for promoting described needle body 3.
As mentioned above, in the present embodiment, described sliding sleeve 2 lateral wall is provided with projection 23, described first guide and limit passage 11 medial wall is provided with the groove 13 coordinating with described projection 23 and depart from from described housing 1 for limiting described sliding sleeve 2, and described projection 23 is provided with when being fitted in described first guide and limit passage 11 for described sliding sleeve 2 is convenient to the slide guide face 231 that projection 23 enters into described groove 13.
As mentioned above, in the present embodiment, described projection 23 is two, it is arranged on opposing two lateral walls of described sliding sleeve 2, and described groove 13 is also two, and it is arranged in the two lateral walls of described first guide and limit passage 11, so, the balance strengthening sliding sleeve 2 is symmetrical arranged.
As mentioned above, in the present embodiment, described elasticity exhibition arm 32 is 2, and its circumference array is arranged on described needle body 3, and the gap slot 22 on described sliding sleeve 2 rear wall also corresponds to two, so, is symmetrical arranged the balance strengthening needle body 3.
As mentioned above, in the present embodiment, described blood lancet device also includes needle guard 5, and described needle guard 5 penetrates from described sliding sleeve 2 front end and is set in described syringe needle 31.
As mentioned above, this case building block is few, fast easy to assembly, during assembling, described needle body 3 first slips into the second guide and limit passage 21 of described sliding sleeve 2 from rear end by user, making described elasticity open up arm 32 is against in described gap slot 22, and then needle body 3 rear end is overall after loading onto spring 4 loads described housing 1, makes sliding sleeve 2 upper protruding block 23 be trapped in the groove 13 of the first guide and limit passage 11, finally load needle guard 5, thus complete whole assembling process.
As mentioned above, the operation principle of this case and use procedure as follows:
During use, described needle guard 5 is first extracted out from described sliding sleeve 2 front end by user, then described sliding sleeve 2 front end is against on human body skin, firmly housing 1 is pressed to human body skin direction gently, thus make described sliding sleeve 2 drive the relatively described housing 1 of described needle body 3 to move backward, spring 4 is compressed, when on needle body 3, elasticity exhibition arm 32 runs into described release lever 12, elasticity exhibition arm 32 departs from from described gap slot 22 and enters in described second guide and limit passage 21, needle body 3 moves forward rapidly under described spring 4 active force, syringe needle 21 goes out from terminal spine before sliding sleeve 2, thus puncture human body skin realization blood sampling, and needle body 3 drives syringe needle 21 to be set back in described sliding sleeve 2 under the counteracting force of the second guide and limit passage 21.
As mentioned above, what this case was protected is a kind of pressing type blood lancet device, and all technical schemes identical or close with this case structure all should be shown for falling in the protection domain of this case.
Claims (5)
1. a pressing type blood lancet device, it is characterized in that including housing (1), sliding sleeve (2), and needle body (3), described needle body (3) front end is provided with syringe needle (31), described housing (1) inner chamber is provided with for moving axially and housing (1) the first guide and limit passage (11) outward can be stretched out in sliding sleeve (2) front end for described sliding sleeve (2), be provided with for moving axially and syringe needle (31) the second guide and limit passage (21) that can stretch out from sliding sleeve (2) front end for described needle body (3) in described sliding sleeve (2), described needle body (3) is provided with elasticity exhibition arm (32) launched to described housing (1) inner chamber front end, when described sliding sleeve (2) rear wall is provided with for assembling, spacing gap slot (22) is carried out to described elasticity exhibition arm (32) end, the release lever (12) entered in described second guide and limit passage (21) for making upper elasticity exhibition arm (32) of described needle body (3) depart from from described gap slot (22) when described sliding sleeve (2) front end is set back in described housing (1) is provided with in described housing (1), be provided with between described needle body (3) and described housing (1) intracavity bottom and move forward to make described syringe needle (31) go out spring (4) housing (1) from described sliding sleeve (2) front terminal spine for promoting described needle body (3).
2. a kind of pressing type blood lancet device according to claim 1, it is characterized in that described sliding sleeve (2) lateral wall is provided with projection (23), described first guide and limit passage (11) medial wall is provided with the groove (13) coordinating with described projection (23) and depart from from described housing (1) for limiting described sliding sleeve (2), described projection (23) is provided with when being fitted in described first guide and limit passage (11) for described sliding sleeve (2) is convenient to the slide guide face (231) that projection (23) enters into described groove (13).
3. a kind of pressing type blood lancet device according to claim 2, it is characterized in that described projection (23) is two, it is arranged on opposing two lateral walls of described sliding sleeve (2), described groove (13) is also two, and it is arranged in the two lateral walls of described first guide and limit passage (11).
4. a kind of pressing type blood lancet device according to claim 1, it is characterized in that described elasticity exhibition arm (32) is 2, its circumference array is arranged on described needle body (3), and the gap slot (22) on described sliding sleeve (2) rear wall also corresponds to two.
5. a kind of pressing type blood lancet device according to claim 1-4 any one, it is characterized in that described blood lancet device also includes needle guard (5), described needle guard (5) penetrates from described sliding sleeve (2) front end and is set in described syringe needle (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349296.2A CN104983431A (en) | 2015-06-19 | 2015-06-19 | Press type blood collection needle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349296.2A CN104983431A (en) | 2015-06-19 | 2015-06-19 | Press type blood collection needle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104983431A true CN104983431A (en) | 2015-10-21 |
Family
ID=54295433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510349296.2A Pending CN104983431A (en) | 2015-06-19 | 2015-06-19 | Press type blood collection needle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104983431A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638183A (en) * | 2017-10-30 | 2018-01-30 | 广东龙心医疗器械有限公司 | Fluid delivery system with retractable needles |
| CN107823761A (en) * | 2017-12-08 | 2018-03-23 | 宁波美生医疗器材有限公司 | A kind of new type of safe novopen, which is matched somebody with somebody, applies mechanically pin |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190129A (en) * | 2006-11-27 | 2008-06-04 | 上海宝尔生贸易有限公司 | Disposable blood taking needle |
| CN201642032U (en) * | 2010-04-22 | 2010-11-24 | 王琳 | Disposable, automatic, painless and safe hemostix |
| CN103371832A (en) * | 2012-04-26 | 2013-10-30 | 上海宝尔生贸易有限公司 | Disposable blood taking needle |
| US20140309556A1 (en) * | 2013-04-15 | 2014-10-16 | Becton, Dickinson And Company | Biological Fluid Collection Device and Biological Fluid Collection and Testing System |
| WO2015020609A1 (en) * | 2013-08-07 | 2015-02-12 | Chee Yen Lim | A blood extraction system for extracting and collecting capillary whole blood |
| CN204723072U (en) * | 2015-06-19 | 2015-10-28 | 中山瑞福医疗器械科技有限公司 | A kind of Novel push-type blood lancet device |
-
2015
- 2015-06-19 CN CN201510349296.2A patent/CN104983431A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190129A (en) * | 2006-11-27 | 2008-06-04 | 上海宝尔生贸易有限公司 | Disposable blood taking needle |
| CN201642032U (en) * | 2010-04-22 | 2010-11-24 | 王琳 | Disposable, automatic, painless and safe hemostix |
| CN103371832A (en) * | 2012-04-26 | 2013-10-30 | 上海宝尔生贸易有限公司 | Disposable blood taking needle |
| US20140309556A1 (en) * | 2013-04-15 | 2014-10-16 | Becton, Dickinson And Company | Biological Fluid Collection Device and Biological Fluid Collection and Testing System |
| WO2015020609A1 (en) * | 2013-08-07 | 2015-02-12 | Chee Yen Lim | A blood extraction system for extracting and collecting capillary whole blood |
| CN204723072U (en) * | 2015-06-19 | 2015-10-28 | 中山瑞福医疗器械科技有限公司 | A kind of Novel push-type blood lancet device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638183A (en) * | 2017-10-30 | 2018-01-30 | 广东龙心医疗器械有限公司 | Fluid delivery system with retractable needles |
| CN107638183B (en) * | 2017-10-30 | 2023-12-26 | 广东龙心医疗器械有限公司 | Fluid delivery device with retractable needle |
| CN107823761A (en) * | 2017-12-08 | 2018-03-23 | 宁波美生医疗器材有限公司 | A kind of new type of safe novopen, which is matched somebody with somebody, applies mechanically pin |
| CN107823761B (en) * | 2017-12-08 | 2023-08-18 | 宁波美生医疗器材有限公司 | Needle for safety insulin pen |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20151021 |