Improved seal members for surgical trocars

Trocar assembly devices (100) are disclosed that include an improved elastomeric seal member (134) to maintain sealing engagement during off-centering or radial motion of instruments extending therethrough. The seal members (134) include an inner section (144) and an outer section (146). The inner s...

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Bibliographische Detailangaben
Hauptverfasser:	STEPHENS RANDY, ASHMORE LESLIE, BANIK MICHAEL, ROWE DANIEL, SELECMAN GEORGE
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY
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Beschreibung
Zusammenfassung:	Trocar assembly devices (100) are disclosed that include an improved elastomeric seal member (134) to maintain sealing engagement during off-centering or radial motion of instruments extending therethrough. The seal members (134) include an inner section (144) and an outer section (146). The inner section (144) has an opening formed therein (148) to permit an elongate instrument to pass therethrough in sealing engagement therewith. In accordance with certain embodiments, a corrugated portion (150) is formed in the outer section (146). In accordance with certain embodiments an annular floating ring separates the inner section from the outer section.