Medical probe

Details Medical probe Medical probe

1987-01-09

1989-05-02

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604272, A61M 532

Patent

active

048264920

ABSTRACT:
A needle type probe having a displacement surface acting as a bridge which extends across the aperture into the lumen of the needle. The displacement surface defines two approximately equal lateral openings on either side of the bridge and acts to displace and stretch the skin about the needle shank. A holder for the needle type probe is provided which comprises a sleeve which is pushed over the shank of the needle with a force fit, the sleeve having a stopper portion at the end towards the needle point and a holder plate rotatably mounted on the sleeve by means of a collar which is fit over the sleeve. The stopper portion and the front edge of the holder plate collar each have a serrated surface for selectively restricting rotational movement of the collar relative to the sleeve and needle shank. There is further provided a method for making a needle type probe of the instant invention wherein a point wise force is exerted on a tubular needle material at its front edge and the end of the tube is collapsed onto itself until contact is made between radially opposite inner portions of the inner surface of the needle shank. The shank is then ground rearwardly from the contact point to form a bridge extending from the needle point rearwardly with openings on either side of the bridge.

REFERENCES:
patent: 3119391 (1964-01-01), Harrison
patent: 3831814 (1974-08-01), Butler
patent: 3906932 (1975-09-01), Ayres
patent: 4287891 (1981-09-01), Peters
patent: 4352354 (1982-10-01), Ujihara
patent: 4496353 (1985-01-01), Overland
patent: 4585446 (1986-04-01), Kempf

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