Device for ejecting or taking in liquid or paste-like media

Details Device for ejecting or taking in liquid or paste-like media Device for ejecting or taking in liquid or paste-like media

1989-06-14

1990-11-27

Hafer, Robert A.

Surgery

Instruments

Orthopedic instrumentation

606 93, 606 94, A61F 504

Patent

active

049733346

ABSTRACT:
For the application of bone cement, the cement must be ejected with maximum uniformity. The proposed device comprises a cylinder (10) including a distal ejection nozzle (11), said cylinder with its proximal end (12) being adapted for mounting on a displacing unit (20) for displacing a piston (13). The displacing unit (20) comprises gear means (21, 22) for converting the rotary movement of a driving journal (23) into the linear displacing movement of a driven plunger (14). The piston (13) is adapted to be connected with the driven plunger (14). In the vicinity of the driving journal (23) the displacing unit (20) comprises adapter means (30) for detachable assembly with a pneumatic drilling machine (40).

REFERENCES:
patent: 2299268 (1942-10-01), Fisher
patent: 3811442 (1974-05-01), Maroth
patent: 3812843 (1974-05-01), Wootten et al.
patent: 4157716 (1979-06-01), Ruegg
patent: 4595006 (1986-06-01), Burke et al.
patent: 4711609 (1987-12-01), Seefluth

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