Specimen drawing device
First Claim
1. An improved specimen drawing device comprising:
- (a) a re-useable main tubular housing, said main tubular housing including a side wall structure defining an open proximal end, a substantially open open distal end and an open interior,(b) a disposable cannula assembly structured to be coupled with said tubular housing at said distal end, said cannula assembly comprising;
an elongate cannula including a piercing end and a coupling end,said coupling end including a retractable guard,a protective shield disposed in surrounding relation about a central portion of said elongate cannula between said piercing end and said coupling end,said protective shield being structured for completely removable, yet secure engagement with said tubular housing at said distal end thereof so as to substantially define a front distal wall of said tubular housing so that said coupling end of said elongate cannula extends into said open interior of said tubular housing and said elongate cannula is axially disposed in substantially spaced apart relation from said tubular housing,(c) release means disposed in remote spaced apart relation from said elongate cannula and structured to disengage said protective shield from said housing for disposal of said cannula assembly, and(d) sample collection means structured to be at least partially inserted into said open interior of said tubular housing, through said open proximal end thereof, for coupled engagement with said coupling end of said elongate cannula so as to facilitate extraction of the sample through said elongate cannula and into a collection container.
1 Assignment
0 Petitions
Accused Products
Abstract
An improved specimen drawing device to be used to safely and cost effectively draw specimens such as blood from a patient, the device including a reusable main tubular housing, with a side wall structure defining an open proximal end, an at least partially open distal end and an open interior, and a disposable cannula assembly, having an elongate cannula and a protective shield disposed in surrounding relation about a central portion of the elongate cannula so as to maintain the elongate cannula axially disposed in spaced relation from the reusable tubular housing, the protective shield being structured for removable, yet secured engagement with the distal end of the tubular housing so as to allow for disposability of the entire cannula assembly. The protective shield being removably secured to the tubular housing and being structured for facilitated and remote disengagement thereof from the tubular housing so as to maintain a user'"'"'s fingers in remote spaced apart relation from the elongate cannula and to ensure that portions of the disposable cannula assembly which come into contact with the specimen will not come into contact with a user or portions of the reusable main tubular housing.
84 Citations
14 Claims
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1. An improved specimen drawing device comprising:
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(a) a re-useable main tubular housing, said main tubular housing including a side wall structure defining an open proximal end, a substantially open open distal end and an open interior, (b) a disposable cannula assembly structured to be coupled with said tubular housing at said distal end, said cannula assembly comprising; an elongate cannula including a piercing end and a coupling end, said coupling end including a retractable guard, a protective shield disposed in surrounding relation about a central portion of said elongate cannula between said piercing end and said coupling end, said protective shield being structured for completely removable, yet secure engagement with said tubular housing at said distal end thereof so as to substantially define a front distal wall of said tubular housing so that said coupling end of said elongate cannula extends into said open interior of said tubular housing and said elongate cannula is axially disposed in substantially spaced apart relation from said tubular housing, (c) release means disposed in remote spaced apart relation from said elongate cannula and structured to disengage said protective shield from said housing for disposal of said cannula assembly, and (d) sample collection means structured to be at least partially inserted into said open interior of said tubular housing, through said open proximal end thereof, for coupled engagement with said coupling end of said elongate cannula so as to facilitate extraction of the sample through said elongate cannula and into a collection container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. To be coupled to an at least partially open distal end of a re-useable main tubular housing of a specimen drawing device, the re-useable main tubular housing also having a side wall structure defining an open proximal end, the at least partially open distal end and an open interior, a disposable cannula assembly comprising:
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an elongate cannula including a piercing end and a coupling end, said coupling end including a retractable guard, a protective shield disposed in surrounding relation about a central portion of said elongate cannula between said piercing end and said coupling end, said protective shield being structured for removable engagement with said housing at said distal end thereof such that said coupling end of said elongate cannula extends into said open interior of said tubular housing and said elongate cannula is axially disposed in substantially spaced apart relation from said side tubular housing, and release means disposed in remote spaced apart relation from said elongate cannula and structured to disengage said protective shield from said housing for disposal of said cannula assembly.
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Specification