Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-11-17
1994-11-22
Weiss, John G.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604164, 604167, 604256, A61M 532, A61M 5178
Patent
active
053664469
ABSTRACT:
Introducer assembly for use on the skin of a patient overlying a cavity to be formed in the patient permitting the introduction of an introducer tube having a distal extremity and having a trocar therein having a distal extremity which extends beyond the distal extremity of the introducer tube. The assembly comprises a sleeve having proximal and distal extremities and having a flow passage extending therethrough from the proximal to the distal extremities. A flange having inner and outer margins is provided. The outer margin has a bottom side. An adhesive is secured to the bottom side and is adapted to make a sealing engagement with the skin of the patient. A fluid-tight seal is formed between the inner margin of the flange and the sleeve. A membrane extends across the sleeve and forms a fluid-tight seal with respect to said sleeve. The membrane is formed of a material and a thickness which can be readily punctured by the trocar. The membrane forms a substantially fluid-tight seal between the trocar as it penetrates the same and with the introducer tube after it extends through the membrane. A clamp is carried by the sleeve and is spaced from the membrane and is adapted to retain the introducer tube in a desired longitudinal position of the sleeve.
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patent: 5263939 (1993-11-01), Wortrich
Orth Michael J.
Tal Elisha A.
Unisurge, Inc.
Weiss John G.
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