Pneumoneedle with removable stylet assembly

Details Pneumoneedle with removable stylet assembly Pneumoneedle with removable stylet assembly

1991-08-30

1992-04-14

Mancene, Gene

Surgery

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

Treating material introduced into or removed from body...

604 26, 604 51, A61M 5178

Patent

active

051043815

ABSTRACT:
An improved pneumoneedle wherein the stylet forms part of an assembly removably received within the needle housing. The assembly carries a valve to selectively open or close the needle to fluid flow. The stylet is slidably carried by the assembly and resiliently biased to extend through the needle. Removal of the assembly opens the needle. A septum is engagable with the housing to seal the needle when the assembly is removed. A viewable indicator carried by the stylet signals when the needle has completed penetration.

REFERENCES:
patent: 1527291 (1925-02-01), Zorraquin
patent: 2623521 (1952-12-01), Shaw
patent: 3713447 (1973-01-01), Adair
patent: 3774604 (1973-11-01), Danielsson
patent: 4314565 (1982-02-01), Lee
patent: 4403617 (1983-09-01), Tretinyak
patent: 4535773 (1985-08-01), Yoon
patent: 4655226 (1987-04-01), Lee
patent: 4735215 (1988-04-01), Goto et al.
patent: 4808168 (1989-02-01), Warring
patent: 4869717 (1989-09-01), Adair
patent: 4907599 (1990-03-01), Taylor
patent: 5036860 (1991-08-01), Leigh et al.

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