Low cost disposable lancet
First Claim
1. A safety lancet device, comprising:
- a first arm member;
a second arm member slidably engaging along said first arm from a first position to a second position when said lancet device is compressed to operate by a user; and
a pivotally coupled beam member having a cutting blade disposed at an end thereof, said end of said beam member engaging said second arm member in said first position and disengaging said second arm in said second position, wherein said beam member resiliently deflects in a first direction as said second arm moves from said first position to said second position thereby causing a buildup of a biasing force in said beam member, said biasing force causing said beam member to accelerate said cutting blade through an aperture in said lancet device to incise the user'"'"'s skin when said beam member disengages said second arm in said second position.
5 Assignments
0 Petitions
Accused Products
Abstract
A low cost safety lancet device for creating a skin incision. The lancet contains a unitarily formed plastic body, thereby making the lancet device easy to manufacture at a low cost. The lancet device includes a blade beam having a cutting blade disposed at one end for generating an incision in a patient'"'"'s skin. The blade beam is pivotally coupled within the device, engages a beam keeper arm in a first position and disengages the beam keeper arm in a second position. Upon activation of the device, the blade beam member resiliently deflects in a first direction as the beam keeper arm moves from the first position to the second position thereby causing a buildup of a biasing force in the beam member. When the blade beam disengages the beam keeper arm in the second position, the biasing force built up in the beam member causes the beam member to pivot, thereby accelerating the cutting blade through an aperture in the lancet device to incise the user'"'"'s skin. The acceleration of the blade beam and cutting blade resiliently deflects the blade beam into a second direction, building up a second biasing force which causes the blade beam to return to a non-deflected position thereby withdrawing the cutting blade from the user'"'"'s skin and back through the aperture.
64 Citations
23 Claims
-
1. A safety lancet device, comprising:
-
a first arm member; a second arm member slidably engaging along said first arm from a first position to a second position when said lancet device is compressed to operate by a user; and a pivotally coupled beam member having a cutting blade disposed at an end thereof, said end of said beam member engaging said second arm member in said first position and disengaging said second arm in said second position, wherein said beam member resiliently deflects in a first direction as said second arm moves from said first position to said second position thereby causing a buildup of a biasing force in said beam member, said biasing force causing said beam member to accelerate said cutting blade through an aperture in said lancet device to incise the user'"'"'s skin when said beam member disengages said second arm in said second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A safety lancet device, comprising:
-
a thumb rest; a finger rest disposed opposite to said thumb rest; a detent arm coupled to said thumb rest; a beam keeper arm coupled to said finger rest, said beam keeper arm slidably engaging along said detent arm from a first position to a second position when a user compresses said thumb and finger rest together to operate said lancet device; and a pivotally coupled beam member having a cutting blade disposed at an end thereof, said end of said beam member engaging said beam keeper arm in said first position and disengaging said beam keeper arm in said second position, wherein said beam member resiliently deflects in a first direction as said beam keeper arm moves from said first position to said second position thereby causing a buildup of a biasing force in said beam member, said biasing force causing said beam member to accelerate said cutting blade through said aperture in said lancet device to incise the user'"'"'s skin when said beam member disengages said beam keeper arm in said second position. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
-
-
23. A unitarily formed safety lancet device, comprising:
-
a thumb rest; a finger disposed opposite to said thumb rest; a detent arm coupled to said thumb rest; a beam keeper arm coupled to said finger rest, said beam keeper arm slidably engaging along said detent arm from a first position to a second position when a user compresses said thumb and finger rest together to operate said lancet device; a pivotally coupled beam member having a cutting blade disposed at an end thereof, said end of said beam member engaging said beam keeper arm in said first position and disengaging said beam keeper arm in said second position, wherein said beam member resiliently deflects in a first direction as said beam keeper arm moves from said first position to said second position thereby causing a buildup of a biasing force in said beam member, said biasing force causing said beam member to accelerate said cutting blade through said aperture in said lancet device to incise the user'"'"'s skin when said beam member disengages said beam keeper arm in said second position, said acceleration of said beam member and said cutting blade operating to resiliently deflect said beam member in a second direction, building up a second biasing force which causes said beam member to return to a non-deflected position thereby withdrawing said cutting blade from the user'"'"'s skin and back through said aperture; and cover means disposed on first and second sides of said safety lancet device for preventing contact with said cutting blade.
-
Specification