ASYMMETRIC SHAFT SEAL

A trocar assembly (100) includes a trocar (102) that includes a trocar housing (114) and a cannula that extends distally from the trocar housing, and an integral seal system (306) positioned within a central passageway (308) extending axially through the trocar and engageable against a surgical tool...

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Main Authors Birri, Christopher W, Klenke, Ryan Alan, Hall, Steven G, Mozloom Jr., Joseph Thomas, Prenger, Daniel J
Format Patent
LanguageEnglish
French
German
Published 18.12.2019
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Abstract A trocar assembly (100) includes a trocar (102) that includes a trocar housing (114) and a cannula that extends distally from the trocar housing, and an integral seal system (306) positioned within a central passageway (308) extending axially through the trocar and engageable against a surgical tool shaft extended therethrough. The integral seal system includes an asymmetric seal and a duckbill seal arranged distal to the asymmetric seal, and the asymmetric seal defines a diaphragm that complements insertion and extraction drag forces generated by the duckbill seal against the surgical tool shaft such that total insertion and extraction drag forces generated by the integral seal system are equalized.
AbstractList A trocar assembly (100) includes a trocar (102) that includes a trocar housing (114) and a cannula that extends distally from the trocar housing, and an integral seal system (306) positioned within a central passageway (308) extending axially through the trocar and engageable against a surgical tool shaft extended therethrough. The integral seal system includes an asymmetric seal and a duckbill seal arranged distal to the asymmetric seal, and the asymmetric seal defines a diaphragm that complements insertion and extraction drag forces generated by the duckbill seal against the surgical tool shaft such that total insertion and extraction drag forces generated by the integral seal system are equalized.
Author Birri, Christopher W
Hall, Steven G
Klenke, Ryan Alan
Prenger, Daniel J
Mozloom Jr., Joseph Thomas
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Snippet A trocar assembly (100) includes a trocar (102) that includes a trocar housing (114) and a cannula that extends distally from the trocar housing, and an...
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SubjectTerms DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
Title ASYMMETRIC SHAFT SEAL
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