Adjustable disposable lancet and method
First Claim
1. An adjustable disposable lancet device, comprising:
- a) an elongated body having a closed proximal end and an open distal end, said body having an internal chamber;
b) a barrel slidably mounted in said chamber and protruding distally from said open distal end of said chamber, said barrel having an internal sub-chamber open proximally and distally;
c) a lancet received within said chamber and sub-chamber and having a distally facing needle;
d) said barrel having a distal opening to which a selector tip is attached; and
e) means interconnecting between said barrel and selector tip for adjusting a total length of said barrel and selector tip to adjust depth of penetration of said needle past said selector tip, said interconnecting means comprising;
i) a radially open part-circumferential ramp; and
ii) a follower pin riding in said ramp;
iii) whereby relative rotation of said selector tip with respect to said barrel in a first direction increases said total length, and relative rotation of said selector tip with respect to said barrel in a second direction reduces said total length.
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Accused Products
Abstract
The invention of the present disposable adjustable lancet involves an assembly which has a body and a cap. A lancet holder fits in the body and has a base portion having a pair of upstanding retainer-disabling tines, one of the tines is longer than the other to block the reinsertion of the lancet. A selector tip assists in engaging a clicker position in the selector tip. The method involves selecting positions by means of a female and a male position clicker which provide an audible signal. The position of the lancet can be determined in three manners: visually observing the degree of rotation, audibly denoting the click, and physically rotating the member which, in turn, results in a reaction on the finger while the adjustment is being made.
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Citations
20 Claims
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1. An adjustable disposable lancet device, comprising:
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a) an elongated body having a closed proximal end and an open distal end, said body having an internal chamber;
b) a barrel slidably mounted in said chamber and protruding distally from said open distal end of said chamber, said barrel having an internal sub-chamber open proximally and distally;
c) a lancet received within said chamber and sub-chamber and having a distally facing needle;
d) said barrel having a distal opening to which a selector tip is attached; and
e) means interconnecting between said barrel and selector tip for adjusting a total length of said barrel and selector tip to adjust depth of penetration of said needle past said selector tip, said interconnecting means comprising;
i) a radially open part-circumferential ramp; and
ii) a follower pin riding in said ramp;
iii) whereby relative rotation of said selector tip with respect to said barrel in a first direction increases said total length, and relative rotation of said selector tip with respect to said barrel in a second direction reduces said total length. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A lancet device, comprising:
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a) an elongated body having a closed proximal end and an open distal end, said body having an internal chamber;
b) a lancet disposed in said chamber and movable between a cocked position and a fired position;
c) guide means on said proximal end of said body for receiving a proximal end of said lancet and guiding linear movement of said lancet within said body; and
d) means associated with said proximal end of said body for preventing re-cocking of said lancet after said lancet has been fired. - View Dependent Claims (15, 16)
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17. An adjustable disposable lancet device, comprising:
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a) an elongated body having an open proximal end closed by a lancet holder and an open distal end, said body having an internal chamber;
b) a barrel slidably mounted in said chamber and protruding distally from said open distal end of said chamber, said barrel having an internal sub-chamber open proximally and distally;
c) a lancet received within said chamber and sub-chamber and having a distally facing needle;
d) said barrel having a distal opening to which a selector tip is attached;
e) means interconnecting between said barrel and selector tip for adjusting a total length of said barrel and selector tip to adjust depth of penetration of said needle past said selector tip, said interconnecting means comprising;
i) a radially open part-circumferential ramp in said selector tip; and
ii) a follower pin on said barrel riding in said ramp;
iii) whereby relative rotation of said selector tip with respect to said barrel in a first direction increases said total length, and relative rotation of said selector tip with respect to said barrel in a second direction reduces said total length; and
f) said lancet holder being adapted to restrain said lancet in a cocked position thereof, and including guide means for receiving a proximal end of said lancet to guide linear movements of said lancet. - View Dependent Claims (18, 19, 20)
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Specification