Union for medical instruments or pipes and a female half of such

Details Union for medical instruments or pipes and a female half of such Union for medical instruments or pipes and a female half of such

1982-04-08

1985-09-03

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Guide and support

285331, 285423, 285DIG22, F16L 3500

Patent

active

045388369

ABSTRACT:
A union or coupling for medical instruments or pipes, more specially for injection, transfusion or infusion has a male half with radial nosepieces for locking it in position and a female half with a guide structure and a keeper part, placed proximally of the guide structure, for fixedly locking the nosepieces on the male half proximally of the locking nosepieces of the female half with the nosepieces on the male half seated in radial pockets in said female half. Each nosepiece on the male half has stop ends running parallel to the axis of the male half and each pocket has opposite stop ends, parallel to the axis of the female part for acting against the stop ends on the spigot nosepieces and stopping turning of the male half in relation to the female half. The locking nosepieces on the female half have proximal stop faces, and each locking nosepiece on the male half may only be moved up against the stop faces on the female half with elastic deformation, and because of the elastic springing back of the structure it is quite impossible for the male half later to be pulled out of the female half, a proximal stop on each nosepiece on the male half being kept in position against the stop face. In this way it is possible to make certain that simply by pushing the two halves of the union into each other without any twisting thereof the locking nosepieces on the male half are guided in guide openings of the front or distal guide structure of the female half to proximally the locking nosepieces thereof and it is then quite impossible for the union to be undone and separated into two halves. If needed the union may be designed so that a sealing function is produced by sealing faces resting fluid-tightly against each other, or the union may be designed as a mechanical fastener only.

REFERENCES:
patent: 3588149 (1971-06-01), Demler
patent: 3768476 (1973-10-01), Raitto
patent: 3899198 (1975-08-01), Maroschak
patent: 4133312 (1979-01-01), Burd
patent: 4214586 (1980-07-01), Mericle
patent: 4266815 (1981-05-01), Cross

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