CN108937962A - A kind of disposable safety type blood-taking needle - Google Patents
A kind of disposable safety type blood-taking needle Download PDFInfo
- Publication number
- CN108937962A CN108937962A CN201810858481.8A CN201810858481A CN108937962A CN 108937962 A CN108937962 A CN 108937962A CN 201810858481 A CN201810858481 A CN 201810858481A CN 108937962 A CN108937962 A CN 108937962A
- Authority
- CN
- China
- Prior art keywords
- needle
- spring
- shell
- slideway
- safety type
- 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
Links
- 239000008280 blood Substances 0.000 abstract description 19
- 210000004369 blood Anatomy 0.000 abstract description 19
- 238000010241 blood sampling Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920001651 Cyanoacrylate Polymers 0.000 description 1
- 241000711549 Hepacivirus C Species 0.000 description 1
- 241000725303 Human immunodeficiency virus Species 0.000 description 1
- 208000012266 Needlestick injury Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004830 Super Glue Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 208000002672 hepatitis B Diseases 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
-
- 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
- A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
- A61B5/150564—Protectors removed by pulling or pushing
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Dermatology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to medical instruments fields, needle point, which can retract in housing, after the completion of especially taking a blood sample conceals, people will not be stabbed again and achieve the purpose that safe blood taking needle, including needle stand, shell, a slideway is provided in shell, upper opening is provided at the top of slideway corresponding housing, under shed is arranged in slideway corresponding housing bottom；The needle stand front end passes through under shed and stretches in slideway, and needle stand is fixedly arranged at the front end with needle, and needle stand outer wall is equipped with spring fastening；It is additionally provided with extension spring, the extension spring both ends are separately connected spring fastening and shell inner top；Strip is additionally provided in shell, shell is stretched out in strip one end, and the other end, which is provided with, passes through the fixture block that slideway is against spring fastening lower end.Needle can be packed up rapidly by spring after blood sampling, while needle track is blocked by spring stop piece.
Description
Technical field
The present invention relates to medical instruments fields, and needle point, which can retract in housing, after the completion of especially taking a blood sample conceals, will not
It stabs people again and achievees the purpose that safe, belong to a kind of disposable safe blood-taking needle.
Background technique
It is one of maximum medical device product of current global sales in blood taking needle.However, it is worth noting that, generation at present
Because of blood collection needles human injury's accident caused by syringe needle fracture or medical staff's misoperation number occurs every year for hospital of various countries of boundary
Million person-times.The statistical data that American Medical Association announces shows that only 1,000,000 person-times of medical staff's accident quilts about occur every year for the U.S.
Blood sampling needlestick injury accident, the hepatitis B, hepatitis C virus and AIDS virus for wherein at least having over thousands of people that can be adhered on syringe needle
Infection.The emergency treatment expense that the medical staff and patient stabbed every time because blood collection needles are broken generates is per capita 3000 beauty
Member.
Domestic and international company puts into the research and development of safety blood taking medical equipment energetically in succession, and safe blood-taking needle currently on the market is non-
The situation of Chang Duo, safety blood taking have already turned on, but to promote safety blood taking completely has one section of very long road to walk.Currently on the market
These safety blood taking equipment have many deficiencies: one is the production cost is very high；The second is production technology is complicated；The third is production
Quality is difficult to ensure；The fourth is medical staff is cumbersome；The fifth is security function is difficult to ensure.
The existing blood taking needle to circulate on the market prevents needle point exposing from avoiding though taking measure to the blood taking needle after using
Medical staff is scratched, by the way that protective case to be shifted onto forward to clamping position, thus the safety device realized.But in actual operation
Can not good one-handed performance, and one-handed performance difficulty is big, does not reduce to the working strength of medical staff.Existing product list
When hand operates, also finger can be caused to scratch because of misoperation, cause to infect, be endangered to the health care belt of medical staff；In addition, existing
There is product to need medical staff that needle tubing is extracted human body, certain pain can be caused to human body in the process.
Summary of the invention
The purpose of the present invention is to provide a kind of disposable safety type blood-taking needles, to solve the above problems.
Purpose to realize the present invention, using following technical scheme, a kind of disposable safety type blood-taking needle, including needle
Seat, shell are provided with a slideway in shell, and upper opening, the setting of slideway corresponding housing bottom are provided at the top of slideway corresponding housing
Under shed；The needle stand front end passes through under shed and stretches in slideway, and needle stand is fixedly arranged at the front end with needle, and needle stand outer wall is equipped with spring branch
Seat；It is additionally provided with extension spring, the extension spring both ends are separately connected spring fastening and shell inner top；It is additionally provided in shell
Shell is stretched out in strip, strip one end, and the other end, which is provided with, passes through the fixture block that slideway is against spring fastening lower end.
In one embodiment of the invention, the upper opening upper end is provided with a protrusion, is provided with empty slot and needle track in protrusion, empty
A spring stop piece is provided in slot.
In one embodiment of the invention, for the spring stop piece at V-type, spring stop piece any side is equipped with flexible card-tight part.
In one embodiment of the invention, it is additionally provided with needle guard and entangles needle.
In one embodiment of the invention, the needle guard entangles needle and protrusion simultaneously, and needle guard internal diameter matches with raised outer diameter.
In one embodiment of the invention, the protrusion outside is equipped with external screw thread, is equipped with internal screw thread, the external screw thread on the inside of needle guard
Match with internal screw thread.
In one embodiment of the invention, based on diameter, under shed >=needle stand >=upper opening.
In one embodiment of the invention, there are two the strip settings, and using arranged symmetrically.
In one embodiment of the invention, the needle stand bottom is provided with link block.
In one embodiment of the invention, the strip include stretch out shell extrudings item with connect fixture block and extruding item company
Narrow bars, connection strap side are provided with torque spring connection shell and connection strap.The strip includes the extruding item for stretching out shell
With the connection strap for connecting fixture block and extruding item, connection strap side is provided with torque spring connection shell and connection strap.In torsion bullet
When spring is not affected by external force extruding, fixture block is located at spring fastening lower end, so that keeping is that needle stretches out outside upper opening, pressing squeezes item can
Torque spring is squeezed to realize that fixture block is displaced outwardly, so that spring is restored deformation push the spring support and moves downward, do not squeezing
When extruding, torque spring restores deformation, and fixture block is restored to original position.The setting can further enhance the feel of user of service
With comfort.
In use, needle stretches out shell by needle track compressed spring baffle, take away needle guard and penetrate human body with needle and take blood, passes through needle
Seat enters storage blood device with hose, then after the completion of taking blood, and pressing strip stretch out shell one section makes fixture block upwards to discharge bullet
Spring, spring draws back needle in shell when restoring deformation automatically, and spring stop piece then restores deformation automatically, and baffle blocks needle track,
Needle tubing is extracted rapidly to realize, and will not be extruded again away after needle tubing withdrawal.
Detailed description of the invention
Fig. 1 is safety retraction blood sampling needle spring provided by the invention structural schematic diagram when in a compressed state；
Fig. 2 is structural schematic diagram when safety retraction blood sampling needle spring provided by the invention is in recovery state；
Fig. 3 is safety retraction blood taking needle pin block structure schematic diagram provided by the invention；
Fig. 4 is provided by the invention to set shell and schematic diagram of card bar structure；
Fig. 5 is the structural schematic diagram of the strip provided by the invention for being provided with torque spring；
Fig. 6 is spring stop piece structural schematic diagram provided by the invention.
Specific embodiment
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
It includes needle stand 1, shell 2 that Fig. 1 to Fig. 6, which is shown provided by the invention, is provided with a slideway 21, slideway in shell 2
Upper opening 2103 is provided at the top of 21 corresponding housings, under shed 2102 is arranged in 21 corresponding housing bottom of slideway；1 front end of needle stand
It is stretched in slideway 21 across under shed 2102, needle stand 1 is fixedly arranged at the front end with needle 101, and 21 outer wall of needle stand is equipped with spring fastening 103；
It is additionally provided with extension spring 5,5 both ends of extension spring are separately connected 2 inner top of spring fastening 103 and shell；It is also set in shell 2
It is equipped with strip 6, shell 2 is stretched out in 6 one end of strip, and the other end, which is provided with, passes through the fixture block that slideway 21 is against 103 lower end of spring fastening
601.Wherein, the extension spring 5 is in compressive state always in slideway 21, and the coefficient of elasticity of extension spring 5 is according to reality
Situation is adjusted.
When needle 101 stretches out, the extension spring 5 is in compressive state, after blood sampling, presses strip 6, extension spring 5
It is retracted into needle 101 in slideway 21.
In one embodiment of the invention, 2103 upper end of upper opening is provided with a protrusion 22, is provided with empty slot in protrusion 22
With needle track, a spring stop piece 2201 is provided in empty slot.Needle track is communicated with slideway up and down, and needle track, needle, needle stand center exist
On same vertical line or three's centre deviation very little is close on same vertical line.
In one embodiment of the invention, for the spring stop piece 2201 at V-type, 2201 any side of spring stop piece is equipped with flexible clamping
Portion.The combination of metal, plastic material, or both can be used in spring stop piece 2201；Card-tight part uses silica gel, rubber, metal, or
Its bond material if metal is skeleton, then covers rubber layer, plastics etc., and selected metal has certain deformation and restores energy
Power can provide the power of a compression to needle 101 constantly when needle 101 stretches out, to not shake during use.It is flexible
Card-tight part can be fixedly connected with spring stop piece, such as super glue, welding；Or all other detachable connections, such as set
A card slot is set, flexible card-tight part is arranged in the card slot, and the structure of card slot can refer to be played equally detachably in the prior art
The structure being fixedly connected, is not limited to this field, can use for reference as long as being able to achieve the structure of said function.
In one embodiment of the invention, it is additionally provided with needle guard 4 and entangles needle 101.
As one of preferred embodiment, the needle guard 4 entangles needle 101 and protrusion 22,4 internal diameter of needle guard and protrusion simultaneously
22 outer diameters match, and so that the internal diameter of needle guard 4 is slightly less than raised 22 outer diameters, can tightly be stuck in protrusion 22, not take off easily to reach
The purpose fallen.
As wherein another preferred embodiment, raised 22 outside is equipped with external screw thread, is equipped with internal screw thread on the inside of needle guard 4,
The external screw thread and internal screw thread match, and are together by a threaded connection, and further prevent from falling off.
In one embodiment of the invention, based on diameter, 2102 >=needle stand of under shed, 1 >=upper opening 2103.It should appreciate that, needle
1 lower end of seat also needs to be equipped with a connector sleeve, which connects blood transfusion tube, and specific shape or size are true according to the actual situation
It is fixed, or referring to existing the relevant technologies.The connector sleeve can refer to the shape and specific connection type of the link position of perfusion tube
It can refer to perfusion tube.
In one embodiment of the invention, there are two the settings of strip 6, and using being symmetrical arranged, makes uniform force.
In one embodiment of the invention, 1 bottom of needle stand is provided with link block 104, for connecting hose or remaining receipts
Collect the device of blood.
In one embodiment of the invention, the strip 6 include stretch out the extruding item 603 of shell 2 with connect fixture block 601 and crowded
The connection strap 602 of press strip 603,602 side of connection strap are provided with torque spring 604 and connect shell 2 and connection strap 602.
The principle of the invention: usually needle links together with needle stand, outside the extended upper opening of needle, can also be retained in shell；
It needs to stretch out needle into upper opening when work, and fixture block is enable to be arranged in spring fastening lower end surface, take a blood sample after outer wall, strip is by external force
It squeezes, fixture block is mobile to two sides, and spring fastening loses the support of fixture block, and under the action of extension spring, spring fastening is to moving down
It is dynamic, drive the needle to link together to retract until in shell.Needle stretches out upper opening again in order to prevent, and wherein extension spring is in shell
It is in compressive state always in vivo, and extension spring is enough to make needle and needle stand under no external force in the power that compressive state provides
Displacement will not be generated.
Connection type used by the application is the conventional connection type of machinery field, can refer to the existing skill in this field
The embodiment of art or correlative technology field, the correlative technology field refer to playing the machinery field of identical purpose, can make
The modification of some adaptability is used for the application.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, there can be various modifications and variations in the spirit and principles in the present invention, these equivalent variation or replacement etc.,
It is all included in the scope of protection of the present invention.
Claims (10)
1. a kind of disposable safety type blood-taking needle, it is characterised in that: including needle stand, shell, a slideway is provided in shell,
Upper opening is provided at the top of slideway corresponding housing, under shed is arranged in slideway corresponding housing bottom；The needle stand front end, which passes through down, opens
Mouth stretches in slideway, and needle stand is fixedly arranged at the front end with needle, and needle stand outer wall is equipped with spring fastening；It is additionally provided with extension spring, the stretching
Both ends of the spring is separately connected spring fastening and shell inner top；Strip is additionally provided in shell, shell is stretched out in strip one end, another
End, which is provided with, passes through the fixture block that slideway is against spring fastening lower end.
2. a kind of disposable safety type blood-taking needle according to claim 1, it is characterised in that: the upper opening upper end
It is provided with a protrusion, empty slot and needle track is provided in protrusion, a spring stop piece is provided in empty slot.
3. according to a kind of disposable safety type blood-taking needle according to claim 1, it is characterised in that: the spring catch
For piece at V-type, spring stop piece any side is equipped with flexible card-tight part.
4. a kind of disposable safety type blood-taking needle according to claim 2, it is characterised in that: be additionally provided with needle guard and entangle
Needle.
5. a kind of disposable safety type blood-taking needle according to claim 4, it is characterised in that: the needle guard covers simultaneously
Firmly needle and protrusion, needle guard internal diameter match with raised outer diameter.
6. a kind of disposable safety type blood-taking needle according to claim 4, it is characterised in that: the protrusion outside is set
There is external screw thread, is equipped with internal screw thread on the inside of needle guard, the external screw thread and internal screw thread match.
7. a kind of disposable safety type blood-taking needle according to claim 1, it is characterised in that: based on diameter, under open
Mouth >=needle stand >=upper opening.
8. a kind of disposable safety type blood-taking needle according to claim 1, it is characterised in that: the strip setting
There are two, and using arranged symmetrically.
9. according to a kind of disposable safety type blood-taking needle according to claim 1, it is characterised in that: the needle stand
Bottom is provided with link block.
10. according to claim 1 or a kind of 8 any disposable safety type blood-taking needles, it is characterised in that: described
Strip include stretch out shell extrudings item with connect fixture block and extruding item connection strap, connection strap side be provided with torque spring connect
Body contact body and connection strap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858481.8A CN108937962A (en) | 2018-07-31 | 2018-07-31 | A kind of disposable safety type blood-taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858481.8A CN108937962A (en) | 2018-07-31 | 2018-07-31 | A kind of disposable safety type blood-taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108937962A true CN108937962A (en) | 2018-12-07 |
Family
ID=64465597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810858481.8A Pending CN108937962A (en) | 2018-07-31 | 2018-07-31 | A kind of disposable safety type blood-taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108937962A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111528864A (en) * | 2020-05-14 | 2020-08-14 | 山东大学齐鲁医院 | Vein blood taking needle with needle point capable of being blocked |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090090659A (en) * | 2008-02-21 | 2009-08-26 | (주) 모아랩 | Single use blood collecting apparatus |
| CN201353148Y (en) * | 2009-02-20 | 2009-12-02 | 郑州优德实业股份有限公司 | Disposable hemostix |
| CN103190921A (en) * | 2013-04-22 | 2013-07-10 | 威海洁瑞医用制品有限公司 | Disposable safe blood taking needle |
| WO2014063347A1 (en) * | 2012-10-26 | 2014-05-01 | Zhang Jianming | Automatic needle withdrawing integral vacuum blood sampling apparatus with needle tip protective sleeve |
| CN203576516U (en) * | 2013-11-14 | 2014-05-07 | 圣光医用制品有限公司 | Safety vacuum blood taking needle capable of retracting automatically |
| CN203898320U (en) * | 2014-06-09 | 2014-10-29 | 山东新华安得医疗用品有限公司 | Safe blood taking needle |
| CN106390233A (en) * | 2016-08-30 | 2017-02-15 | 成都普什医药塑料包装有限公司 | Disposable automatic ejection type medical needle |
| CN209499744U (en) * | 2018-07-31 | 2019-10-18 | 四川普瑞斯生物科技有限公司 | A kind of disposable safety type blood-taking needle |
-
2018
- 2018-07-31 CN CN201810858481.8A patent/CN108937962A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090090659A (en) * | 2008-02-21 | 2009-08-26 | (주) 모아랩 | Single use blood collecting apparatus |
| CN201353148Y (en) * | 2009-02-20 | 2009-12-02 | 郑州优德实业股份有限公司 | Disposable hemostix |
| WO2014063347A1 (en) * | 2012-10-26 | 2014-05-01 | Zhang Jianming | Automatic needle withdrawing integral vacuum blood sampling apparatus with needle tip protective sleeve |
| CN103190921A (en) * | 2013-04-22 | 2013-07-10 | 威海洁瑞医用制品有限公司 | Disposable safe blood taking needle |
| CN203576516U (en) * | 2013-11-14 | 2014-05-07 | 圣光医用制品有限公司 | Safety vacuum blood taking needle capable of retracting automatically |
| CN203898320U (en) * | 2014-06-09 | 2014-10-29 | 山东新华安得医疗用品有限公司 | Safe blood taking needle |
| CN106390233A (en) * | 2016-08-30 | 2017-02-15 | 成都普什医药塑料包装有限公司 | Disposable automatic ejection type medical needle |
| CN209499744U (en) * | 2018-07-31 | 2019-10-18 | 四川普瑞斯生物科技有限公司 | A kind of disposable safety type blood-taking needle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111528864A (en) * | 2020-05-14 | 2020-08-14 | 山东大学齐鲁医院 | Vein blood taking needle with needle point capable of being blocked |
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