Apparatus for ascertaining the firmness of tissue

Details Apparatus for ascertaining the firmness of tissue Apparatus for ascertaining the firmness of tissue

1981-01-26

1982-12-28

Apley, Richard J.

Surgery

Truss

Pad

128297, 73 375, 73838, A61B 1000

Patent

active

043656382

ABSTRACT:
Apparatus for measuring the firmness of tissue, for example of skin in vivo, comprises a compartment open at one end and having a deformable bulb at the other end to allow the compartment near the open end to be subject to internal suction deforming a portion of skin against which the apparatus is applied to dome upwardly into the compartment. A plunger pressed upwardly by the doming skin actuates a pivotable pointer visible from outside the apparatus.

REFERENCES:
patent: 1361848 (1920-12-01), Green
patent: 2210435 (1940-08-01), Ruf
patent: 2591443 (1952-04-01), Larson et al.
patent: 4073294 (1978-02-01), Stanley et al.
patent: 4159640 (1979-07-01), Leveque
"Experimental Method for Determining the 2-Dimensional Mechanical Properties of Living Human Skin," Cook et al., Medical and Biological Engineering and Computing, Jul. 1977, pp. 382-390.

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