CN200991232Y - 一次性静脉采血针 - Google Patents
一次性静脉采血针 Download PDFInfo
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- CN200991232Y CN200991232Y CNU2006201622169U CN200620162216U CN200991232Y CN 200991232 Y CN200991232 Y CN 200991232Y CN U2006201622169 U CNU2006201622169 U CN U2006201622169U CN 200620162216 U CN200620162216 U CN 200620162216U CN 200991232 Y CN200991232 Y CN 200991232Y
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- 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
- A61B5/15003—Source of blood for venous or arterial blood
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- 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
- A61B5/150236—Pistons, i.e. cylindrical bodies that sit inside the syringe barrel, typically with an air tight seal, and slide in the barrel to create a vacuum or to expel blood
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- 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
- A61B5/150244—Rods for actuating or driving the piston, i.e. the cylindrical body that sits inside the syringe barrel, typically with an air tight seal, and slides in the barrel to create a vacuum or to expel blood
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- 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
- A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
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- 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
- A61B5/150503—Single-ended needles
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- 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
- A61B5/150694—Procedure for removing protection means at the time of piercing
- A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
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- 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
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5021—Test tubes specially adapted for centrifugation purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/04—Closures and closing means
- B01L2300/041—Connecting closures to device or container
- B01L2300/042—Caps; Plugs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/04—Closures and closing means
- B01L2300/046—Function or devices integrated in the closure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0848—Specific forms of parts of containers
- B01L2300/0851—Bottom walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
- B01L2400/0478—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure pistons
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Abstract
一种一次性静脉采血针,属于医疗器械技术领域。由针头、针筒、活塞、针栓、针头帽、松紧套构成,针头连接在针筒前端的针头连接座上,针头外面套有针头帽,针筒内部的密封活塞与针栓固定连接,其特征在于针头帽前端外壁上套有与针头连接座相适配的松紧套,在针筒尾部内壁上设有一条与针筒末端相通的通气凹槽。优点是:盛血样的采血针筒可直接放入离心机内分离血清,克服了现有采血器在注血过程中因操作不慎造成溶血,影响检验结果的问题,保证了检验结果的准确性;同时由于省去了一次性试管,降低了验血成本,减少了环境污染。
Description
技术领域
本实用新型属于医疗器械技术领域,具体的说是一种一次性静脉采血针。
背景技术
现在的采血检验过程一般是这样的,先用采血器采集血样,再将血样注入试管(或其它盛器),然后将血样用离心机分离血清后进行各种项目的检验。这样做既烦琐,又容易因注血操作不慎引起溶血,影响检验结果的准确性。
发明内容
本实用新型的目的在于克服上述的不足,提供一种采血化验简便,不易引起溶血,保证检测结果准确的一次性静脉采血针。
本实用新型的目的是这样实现的:该一次性静脉采血针由针头、针筒、活塞、针栓、针头帽、松紧套构成,针头连接在针筒前端的针头连接座上,针头外面套有针头帽,针筒内部的密封活塞与针栓固定连接,在针头帽前端外壁上套有与针头连接座相适配的松紧套,在针筒尾部内壁上设有一条与针筒末端相通的通气凹槽。
在具体使用本实用新型时,首先按常规过程采集血样,当活塞退至通气凹槽前端时,取下针头,将松紧套套在针头连接座上,竖起针筒,针头连接座向下,继续向上抽拉活塞,当活塞全部经过通气凹槽前端时,针筒内部空腔通过通气凹槽与大气相通,负压自动解除,活塞可轻易拔出,这时把针筒直接放入到离心机内分离血清即可。由于松紧套紧套在针头连接座上,不必担心它会因离心力而脱落。
本实用新型的优点:由于盛血样的采血针筒可直接放入离心机内分离血清,从而克服了现有采血器在注血过程中因操作不慎造成溶血,影响检验结果的问题,保证了检验结果的准确性;同时由于省去了一次性试管,降低了验血成本,减少了环境污染。
附图说明
附图为本实用新型沿中心线的剖视图。
具体实施方式
以下结合附图对本实用新型作进一步的详细描述:该一次性静脉采血针由针头1、针筒2、活塞3、针栓4、针头帽5、松紧套6构成,针头1连接在针筒2前端的针头连接座上,针头1外面套有针头帽5,针筒2内部的密封活塞3与针栓4固定连接,在针头帽5前端外壁上套有与针头连接座相适配的松紧套6,在针筒2尾部内壁上设有一条与针筒2末端相通的通气凹槽7。
Claims (1)
1、一种一次性静脉采血针,由针头(1)、针筒(2)、活塞(3)、针栓(4)、针头帽(5)、松紧套(6)构成,针头(1)连接在针筒(2)前端的针头连接座上,针头(1)外面套有针头帽(5),针筒(2)内部的密封活塞(3)与针栓(4)固定连接,其特征在于针头帽(5)前端外壁上套有与针头连接座相适配的松紧套(6),在针筒(2)尾部内壁上设有一条与针筒(2)末端相通的通气凹槽(7)。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNU2006201622169U CN200991232Y (zh) | 2006-12-26 | 2006-12-26 | 一次性静脉采血针 |
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CNU2006201622169U CN200991232Y (zh) | 2006-12-26 | 2006-12-26 | 一次性静脉采血针 |
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CN200991232Y true CN200991232Y (zh) | 2007-12-19 |
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CNU2006201622169U Expired - Fee Related CN200991232Y (zh) | 2006-12-26 | 2006-12-26 | 一次性静脉采血针 |
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CN (1) | CN200991232Y (zh) |
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2006
- 2006-12-26 CN CNU2006201622169U patent/CN200991232Y/zh not_active Expired - Fee Related
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