Trocar insertion device

Details Trocar insertion device Trocar insertion device

1996-10-28

1998-12-01

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

606167, 604164, 604264, A61B 1734

Patent

active

058431152

ABSTRACT:
A trocar insertion device to facilitate the introduction of a conventional trocar into a patient, the insertion device including a generally elongate insertion arm that has a tubular configuration structured and disposed to removably receive a trocar mounted thereon, and a generally narrow and short guide segment extending from a forward end of the insertion arm. The guide segment includes a pointed tip structured and disposed to facilitate penetration of the guide segment through a patient's skin so as to define a small guide port in the patient's skin. Furthermore, a penetration resistance hub defined at the forward end of the insertion arm is provided and disposed to abut the patient's skin after initial penetration of the guide segment through the patient's skin, thereby resisting penetration of the insertion arm, and the trocar thereon, through the patient's skin until after a plurality of surgical blades protrude from the insertion arm to cut a corresponding number of incisions, extending from the guide port defined in the patient's skin, which define an entry opening wherethrough the insertion arm and the trocar disposed thereon penetrate the patient's skin, with minimal resistance and minimal skin trauma, to a desired depth.

REFERENCES:
patent: 5314417 (1994-05-01), Stephens et al.
patent: 5522831 (1996-06-01), Sleister et al.
patent: 5538509 (1996-07-01), Dunlap et al.
patent: 5620456 (1997-04-01), Sauer et al.

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