Surgery – Truss – Pad
Patent
1994-12-12
1996-05-21
Yasko, John D.
Surgery
Truss
Pad
604187, 604 24, A61B 500
Patent
active
055180043
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.
REFERENCES:
patent: 4841985 (1989-06-01), Wanamaker
patent: 4907600 (1990-03-01), Spencer
patent: 5070885 (1991-12-01), Bonaldo
patent: 5086780 (1992-02-01), Schmitt
patent: 5201716 (1993-04-01), Richard
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