Disposable slicing lancet assembly
DCFirst Claim
1. A lancet device for implementing an incision comprising;
- a hollow housing means having at least two opposing internal surfaces;
a pivot arm supporting a blade located within said housing means;
biasing means for biasing said pivot arm from a first position to a second position within said housing means;
a guide means within said housing means for guiding the path of said pivot arm from said first position to said second position, said guide means causing said blade to emerge from said housing means, create said incision with a slicing motion and return into said housing means wherein said blade follows a generally tear drop shaped path between said first position and said second position; and
a contact means for creating contact between said pivot arm said two opposing internal surfaces as said pivot arm moves from said first position to said second position, said contact means limiting the movement of said blade support arm and said blade to a single plane.
3 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A lancet device uses a planar blade that implements an incision in the skin of a patient using a slicing action. There is a blade support arm pivotably secured within a hollow housing. The pivot connection between the blade support arm and the housing is formed by a pivot pin which extends from the housing and is positioned in a slot receptacle formed on the blade support arm. The pivot pin is free to reciprocally move within the slot receptacle as the blade support arm pivot about the pivot pin. The rotation of the blade support arm about the pivot pin is implemented by a bias spring. The path traversed by the blade support arm as it pivots is controlled by a groove located on the interior surface of the housing which engages a projection that extends from the blade support arm. As such, when the support arm pivots from a first position to a second position, the projection on the blade support arm traverses the groove in the housing. The action of the projection of the blade support arm following the groove in the housing causes the slot receptacle on the blade support arm to reciprocate. Consequently, the blade is caused to reciprocate within the housing as it rotates with the blade support arm, wherein the blade exits the housing, implements an incision and is again retracted into the housing traversing a "tear drop" shaped path.
-
Citations
18 Claims
-
1. A lancet device for implementing an incision comprising;
-
a hollow housing means having at least two opposing internal surfaces; a pivot arm supporting a blade located within said housing means; biasing means for biasing said pivot arm from a first position to a second position within said housing means; a guide means within said housing means for guiding the path of said pivot arm from said first position to said second position, said guide means causing said blade to emerge from said housing means, create said incision with a slicing motion and return into said housing means wherein said blade follows a generally tear drop shaped path between said first position and said second position; and a contact means for creating contact between said pivot arm said two opposing internal surfaces as said pivot arm moves from said first position to said second position, said contact means limiting the movement of said blade support arm and said blade to a single plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A lancet device for implementing an incision comprising:
-
a hollow housing means having two substantially parallel opposing internal surfaces wherein a groove having a linear section is located on at least one of said internal surfaces and a pivot pin extends from one of said internal surfaces into the hollow of said housing means; a pivot arm pivotably secured within said housing means, said pivot arm having a projection movably engaging said groove; a biasing means for biasing said pivot arm to enable said pivot arm to move from a first position to a second position thereby causing said projection to traverse said linear section of said groove; and a blade affixed to said pivot arm, said blade emerging from said housing means and creating said incision with a slicing motion, said slicing motion being controlled by said projection engaging said linear section of said groove as said pivot arm travels from said first position. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
Specification