Lancet unit with safety sleeve
First Claim
1. An improved lancet unit comprising:
- (a) a lancet retaining member having a first and a second end;
(b) a lancet comprising an elongated rod member with a sterile sharp tip, said rod member having a first segment and a second segment, said first rod segment being fixedly disposed within said retaining member and said second rod segment extending beyond said second end of said lancet retaining member;
(c) a movable sleeve having a forward end, a rear end, and an axial passageway extending therebetween, said axial passageway being sized to receive said second rod segment coaxially therein, said sleeve rear end and said second end of said lancet retaining member being structured and disposed to confront each other in stopping abutment such that said sleeve is prevented from entering within an interior of said lancet retaining member;
(d) said sleeve being supported on said second rod segment and movable longitudinally from an initial position wherein said sleeve rear end and said second end of said lancet retaining member are disposed in stopping abutment and said lancet tip projects outwardly beyond said sleeve forward end to a second protective position wherein said sleeve and said lancet retaining member are disposed in separated relation and said lancet tip is surroundingly enclosed and shielded by said sleeve; and
(e) means structured and disposed on the lancet unit for fixedly securing said sleeve in said second position.
1 Assignment
0 Petitions
Accused Products
Abstract
An improved single use lancet unit with a movable safety sleeve for shielding the sharp contaminated tip of a used lancet including means for fixedly securing the sleeve in its protective position. The lancet unit includes a lancet having a rod-shaped body disposed at one end in a lancet retaining member and a sterile sharp tip at the other end. The lancet unit includes a movable sleeve with an axial passageway therethrough sized to receive the lancet body segment which extends beyond the retaining member coaxially therein. The sleeve is movable longitudinally from an initial position for use of the lancet unit wherein the sharp tip of the lancet projects beyond the sleeve to a protective position wherein the sleeve surroundingly encloses and shields the contaminated tip of the used lancet unit. The lancet unit further includes a coupling member and a receiving opening which matingly engage to fixedly secure the sleeve in its protective position.
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Citations
11 Claims
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1. An improved lancet unit comprising:
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(a) a lancet retaining member having a first and a second end; (b) a lancet comprising an elongated rod member with a sterile sharp tip, said rod member having a first segment and a second segment, said first rod segment being fixedly disposed within said retaining member and said second rod segment extending beyond said second end of said lancet retaining member; (c) a movable sleeve having a forward end, a rear end, and an axial passageway extending therebetween, said axial passageway being sized to receive said second rod segment coaxially therein, said sleeve rear end and said second end of said lancet retaining member being structured and disposed to confront each other in stopping abutment such that said sleeve is prevented from entering within an interior of said lancet retaining member; (d) said sleeve being supported on said second rod segment and movable longitudinally from an initial position wherein said sleeve rear end and said second end of said lancet retaining member are disposed in stopping abutment and said lancet tip projects outwardly beyond said sleeve forward end to a second protective position wherein said sleeve and said lancet retaining member are disposed in separated relation and said lancet tip is surroundingly enclosed and shielded by said sleeve; and (e) means structured and disposed on the lancet unit for fixedly securing said sleeve in said second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 11)
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8. An improved lancet unit comprising:
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(a) a lancet retaining member having a first and a second end; (b) a lancet comprising an elongated rod member with a sterile sharp tip, said rod member having a first segment and a second segment, said first rod segment being fixedly disposed within said retaining member and said second rod segment extending beyond said second end of said lancet retaining member; (c) a movable sleeve having a forward end, a rear end, and an axial passageway extending therebetween, said axial passageway being sized to receive said second rod segment coaxially therein, said sleeve rear end and said second end of said lancet retaining member being structured and disposed to confront each other in stopping abutment such that said sleeve is prevented from entering within an interior of said lancet retaining member; (d) said sleeve being supported on said second rod segment and movable longitudinally from an initial position wherein said lancet tip projects outwardly beyond said sleeve forward end to a second protective position wherein said sleeve and said lancet retaining member are disposed in separated relation and said lancet tip is surroundingly enclosed and shielded by said sleeve; and (e) means on the lancet unit for adjusting the length of said lancet tip exposed for penetration into a patient'"'"'s skin, said adjusting means being structured and disposed to provide unidirectional movable engagement of said sleeve relative to said second rod segment, whereby said sleeve can be moved in a direction way from said retaining member in order to reduce the exposed portion of said lancet tip but cannot subsequently be moved in an opposite direction to increase said exposed portion of said lancet tip. - View Dependent Claims (9, 10)
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Specification