Surgery: splint – brace – or bandage – Bandage structure – Skin laceration or wound cover
Patent
1996-07-31
1998-04-14
McDermott, Corrine M.
Surgery: splint, brace, or bandage
Bandage structure
Skin laceration or wound cover
602 54, 604180, A61F 1300
Patent
active
057386412
ABSTRACT:
A blood withdrawal patch for facilitating withdrawal from a patient and for confining blood from the needle wound has an absorbent pad with a first surface to be placed against the skin of a patient around an intended injection site, a second surface opposite the first surface and a central opening. A transparent, elastomeric, self-sealing membrane through which an injection needle can penetrate lies in the pad central opening. A transparent cover layer has a central opening substantially aligned with the central opening of the pad to expose a central portion of the membrane to identify the withdrawal site, the cover layer being adhered to the membrane and the pad. The patch is adhesively held on the patient's skin. A blood vessel is visually located through the membrane and cover and a needle is passed through the membrane and the patient's skin into the vessel for blood withdrawal. After withdrawal, the needle is extracted, and the membrane wipes the needle and forms a cavity with the pad and the patient's skin to contain blood from the withdrawal site until after hemostasis. The patch is also useful for installation of a catheter.
REFERENCES:
patent: 4978342 (1990-12-01), Heimreid
patent: 5254095 (1993-10-01), Harvey
patent: 5447492 (1995-09-01), Cartmell et al.
patent: 5496264 (1996-03-01), Watson et al.
patent: 5569223 (1996-10-01), Wandell et al.
Knepshield William R.
Watson Robert L.
Farley Walter C.
McDermott Corrine M.
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