Piercing pin transfer device for continuous ambulatory peritonea

Details Piercing pin transfer device for continuous ambulatory peritonea Piercing pin transfer device for continuous ambulatory peritonea

1990-02-20

1991-09-10

Rosenbaum, C. Fred

Surgery

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

Material introduced into and removed from body through...

604411, 141330, A61M 500

Patent

active

050470116

ABSTRACT:
An improved motorized transfer mechanism for use in a continuous ambulatory peritoneal dialysis apparatus (CAPD) is provided for automatically transferring a piercing pin from the clamped port of a used container of used dialysis solution to the clamped port of a container of fresh dialysis solution. The transfer mechanism is characterized by a track member extending between opposed aligned port mountings, an upstanding guideway adjacent to each port mounting and a rack formation located midway between the opposite ends of the track member. The rack formation is rotatably engageable with a circular gear sector secured to the spike carrier disposed within the guideways of the track member. The linear movement between the opposed ports of the spike carrier is performed by a motor-driven drive screw. The intermediate 180 degree rotational movement of the spike occurring when the rack formation of the track member engages the circular gear sector of the spike carrier, both inverts the spike and positions it adjacent an ultraviolet bulb for sterilization thereof.

REFERENCES:
patent: 4405315 (1983-09-01), Handt
patent: 4500788 (1985-02-01), Kulin et al.
patent: 4541829 (1985-09-01), Munsch et al.
patent: 4557727 (1985-12-01), Handt
patent: 4614514 (1986-09-01), Cerr et al.
patent: 4655753 (1987-04-01), Bellotti et al.
patent: 4840621 (1989-06-01), Lorkin et al.

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