Retractable blade bleeding time device
First Claim
1. A disposable device for making an incision in the skin such as in a human by a retracting blade member that selfretracts after the incision is completed for bleeding time determinations comprising:
- a housing which inclues a blade opening;
hammer means pivotably positioned within the housing and including a cam surface;
selfretracting shuttle means supported within the housing and including a cam follower surface, the shuttle means operative to travel towards the skin by (i) the movement of the cam surface along the cam follower surface and (ii) the biasing force exerted on the shuttle means by a first spring means extending from the shuttle means;
blade means secured to the shuttle means and operative to extend through said opening out of said housing to make the incision and then selfretract into the housing; and
second spring means operative to exert a force on the hammer means to cause it (i) to travel along the cam follower surface to cause the shuttle means to travel towards said opening thereby causing the blade to travel out of the housing and make the incision and, (ii) to travel into a locked position to thereby secure the blade within the housing after the blade has retracted back into the housing due to force exerted by the first spring means.
4 Assignments
0 Petitions
Accused Products
Abstract
A disposable device for making an incision in the skin of a human or animal by a retracting blade member that selfretracts after the incision is completed for bleeding time determinations, is disclosed. The device comprises a housing, a hammer mechanism pivotably positioned within the housing and including a cam surface, and a selfretracting shuttle supported within the housing and including a cam follower surface, the shuttle operative to travel in a vertical direction by (i) the movement of the cam surface along the cam follower surface and (ii) the force exerted on the shuttle by a first spring extending from the shuttle. Secured on the shuttle is a cutting surface {(blade(s)} operative to move out of the housing to make the incision and then selfretract into the housing. A second spring is operative to exert a force on the hammer to cause it (i) to move along the cam follower surface to cause the shuttle to travel downwardly thereby causing the blade to travel out of the housing and make the incision, and (ii) to move into a locked position to thereby secure the blade within the housing after the blade has retracted back into the housing due to force exerted by the first spring.
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Citations
29 Claims
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1. A disposable device for making an incision in the skin such as in a human by a retracting blade member that selfretracts after the incision is completed for bleeding time determinations comprising:
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a housing which inclues a blade opening; hammer means pivotably positioned within the housing and including a cam surface; selfretracting shuttle means supported within the housing and including a cam follower surface, the shuttle means operative to travel towards the skin by (i) the movement of the cam surface along the cam follower surface and (ii) the biasing force exerted on the shuttle means by a first spring means extending from the shuttle means; blade means secured to the shuttle means and operative to extend through said opening out of said housing to make the incision and then selfretract into the housing; and second spring means operative to exert a force on the hammer means to cause it (i) to travel along the cam follower surface to cause the shuttle means to travel towards said opening thereby causing the blade to travel out of the housing and make the incision and, (ii) to travel into a locked position to thereby secure the blade within the housing after the blade has retracted back into the housing due to force exerted by the first spring means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A disposable device for making an incision in the skin such as in a human by a retracting blade member that selfretracts after the incision is completed for bleeding time determinations comprising:
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a housing which includes a blade opening; hammer means pivotably positioned within the housing and including a cam surface; selfretracting shuttle means supported within the housing and including a cam follower surface, the shuttle means operative to travel towards the skin by (i) the movement of the cam surface along the cam follower surface and (ii) the biasing force exerted on the shuttle means by a first spring means extending from the shuttle means; at least one blade secured to the shuttle means and operative to extend through said opening out of said housing to make at least one incision and then selfretract into the housing, each blade positioned on the shuttle means such that the length of the blade strikes the skin at an angle to the skin; and second spring means operative to exert a force on the hammer means to cause it (i) to travel along the cam follower surface to cause the shuttle means to travel towards said opening thereby causing each blade to travel out of the housing and make its incision, and (ii) to travel into a locked position to thereby secure each blade within the housing after each blade has retracted back into the housing due to the force exerted by the first spring means. - View Dependent Claims (26, 27, 28, 29)
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Specification