Trocar sleeves having a ball valve

Details Trocar sleeves having a ball valve Trocar sleeves having a ball valve

1980-07-14

1983-04-12

Thaler, Michael H.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

128754, 604905, A61B 1734, A61M 500

Patent

active

043794580

ABSTRACT:
A trocar sleeve of the kind having a widened part forming a housing between the distal portion of the sleeve and its proximal portion, which latter extends from a plug for the widened housing part, and a ball valve in the widened housing part which ball valve is closable by resilient means and which is openable by a trocar passing through the sleeve.
In this invention, the widened part forming the housing receives an insert of U-shaped cross-section which is securable to the plug to stress an inserted sealing gasket of deformation-resistant plastics material which is to be drilled through to form a valve seating. The space in the U formed by the insert forms a space for the ball of the ball valve to move in, the ball, before the insert is screwed to the plug, being connected to a shaft insertable in the insert and carrying a tangentially loaded helical spring and being placed under stress by connecting the insert to the plug.

REFERENCES:
patent: 1497054 (1924-07-01), Allabach
patent: 1818508 (1931-09-01), Scott
patent: 1858766 (1932-05-01), Dabroski
patent: 2641485 (1953-06-01), Dupuy
patent: 3055370 (1962-09-01), McKinney et al.
patent: 3288142 (1966-10-01), Hakin
patent: 3730216 (1973-04-01), Arnett et al.
patent: 3754564 (1973-09-01), Naumburg et al.
patent: 3768102 (1973-11-01), Kwan-Gett et al.
patent: 3897810 (1975-08-01), Arnett et al.
patent: 3911977 (1975-10-01), Berger
patent: 4007909 (1977-02-01), Buseth et al.
patent: 4245635 (1981-01-01), Kontos
patent: 4261357 (1981-04-01), Kontos

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