Prosthetic joint for knee and above-knee amputees

Details Prosthetic joint for knee and above-knee amputees Prosthetic joint for knee and above-knee amputees

1981-06-01

1983-04-12

Frinks, Ronald L.

3 17R, A61F 104, A61F 108

Patent

active

043793509

ABSTRACT:
A prosthetic joint for knee and above-knee amputees consists of a hollow shank (1), open at the top, for receiving the femoral stump, of an attachment member (3) articulatedly joined to this shank for fitting of a below-knee prosthesis (2) with a foot part and of an articulated joint between the shank (1) and the attachment member (3).
The articulated joint consists of a guide member (5) connected to the attachment member (3) and having rectilinear guide grooves (17a, 17b), of a support (7) guided shiftably in said guide member by means of arcuate guide bars (18a, 18b) and connected rigidly to the shank (1), and of a gearing located between the support and the guide member.
The gearing consists of an arcuate rack (8) on the support (7), of a rectilinear rack (10) on the guide member (5) and of a pinion (9) rotatably mounted in the slide member (6) and engaging the two racks.

REFERENCES:
patent: 1586015 (1926-05-01), Underwood
patent: 2046069 (1936-06-01), Greissinger
patent: 2457482 (1948-12-01), Marean
patent: 3597767 (1971-10-01), Prahl
patent: 3928873 (1975-12-01), Zevering
patent: 4085466 (1978-04-01), Goodfellow et al.
patent: 4312081 (1982-01-01), Munny

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