US 2010/0168774 A1Published application

Pricking device

AssigneeNissei Plastic Industrial Co., Ltd.

InventorsSusumu Morita, Minoru Yamazaki, Hozumi Yoda

Life of this patent

Estimating the term…

Loading patent…

Abstract

A pricking device having an accurate pricking function, an automatic safe post-use discarding function and a re-use inhibiting function is disclosed. The pricking device is easy and simple to operate, simple in structure and is high in productivity to reduce production costs. The pricking device is made up of a lancet unit and a housing unit. The lancet unit includes a needle. The lancet unit is formed by a unit body member, a restoration member and a resilient piece for lock molded as one with one another. The unit body member operates to cause the needle to pop out from the housing unit in connection with a pricking operation. The restoration member controls the operation of movement of the unit body member as it stores a force of elasticity in it. After the pricking operation, the needle is returned into the inside of the housing unit under the so stored force of elasticity of the restoration member. Another force of elasticity is stored in the resilient piece for lock as a result of the movement of the unit body member. The resilient piece for lock includes a cam bump engaged with a lock cam section of the housing unit after the pricking operation.

Claims4

Dependent claims

A pricking device comprising:

a lancet unit integrally formed with a needle;
and
a housing that houses said lancet unit for movement therein;
wherein said lancet unit includes
a unit body member movable within said housing in connection with a pricking operation to cause said needle to pop out of said housing;
and
a resilient piece;
wherein said resilient piece includes a cam bump that may be engaged with a cam groove formed in said housing;
said resilient piece being integrally formed with said unit body member, said resilient piece storing a force of elasticity as said unit body member is moved in connection with said pricking operation, said cam bump engaging within a foremost part of said cam groove when said unit body member has returned into said housing after the pricking operation, said cam bump being kept engaged within said foremost part under said force of elasticity stored in said resilient piece to keep a state of inhibiting re-popping out of said needle;
said unit body member or said housing including a restoration member that stores therein another force of elasticity as said unit body member is moved in connection with said pricking operation, said restoration member causing said needle to be returned into the inside of said housing under said another force of elasticity after the pricking operation.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/645,656Filed 23 Dec 2009
Priority: JP 2008-33067925 Dec 2008
Published: 1 Jul 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

A61B 5/15144
Devices intended for single use, i.e. disposable: comprising driving means, e.g. a spring, for retracting the piercing unit into the housing
A61B 5/150022
Source of blood: for capillary blood or interstitial fluid
A61B 5/150297
Manufacture or production processes or steps for blood sampling devices: for piercing devices, i.e. devices ready to be used for lancing or piercing
A61B 5/150412
Design of piercing elements: pointed piercing elements, e.g. needles, lancets for piercing the skin

Family

No related US applications are recorded in the indexed filing history.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key