Piston pump for needle-less injection instruments

Details Piston pump for needle-less injection instruments Piston pump for needle-less injection instruments

1982-04-14

1983-10-25

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

A61M 530

Patent

active

044116500

ABSTRACT:
In this piston pump, the pump housing (1) is provided with a mounting (E) for a vessel (3), which consists of a pipe end (4) provided with a hollow needle (5) and of a connecting element (9, 16, 17) for connecting the vessel (3) to the pipe end (4). The pump housing (1) has an inlet channel (7) which is connected to a channel (6) in the pipe end (4).
So that the vessels (3) can be connected rigidly to the piston pump, the connecting element consists, for example, of a metal sheet (9) bent in the form of a U, which is provided on its inner side with U-shaped yokes (10, 11), the yoke (10) facing the pump housing (9) engaging into a groove (12) provided in the pipe end (4) and the other yoke (11) serving for surrounding the vessel neck.

REFERENCES:
patent: 3057349 (1962-10-01), Ismach
patent: 3130723 (1964-04-01), Venditty et al.
patent: 3202151 (1965-08-01), Kath
patent: 3330277 (1967-07-01), Gabriels

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