Dilator for a ballon catheter

Details Dilator for a ballon catheter Dilator for a ballon catheter

1994-05-03

1996-03-05

Pellegrino, Stephen C.

Surgery

Instruments

Internal pressure applicator

604264, A61M 2900, A61M 500

Patent

active

054963443

ABSTRACT:
A dilator of the invention is used for enlarging a constricted portion of a blood vessel. The dilator is formed of a flexible guide wire to be entered into the blood vessel, a head having a tapered front portion and a through hole extending through the head, and a shaft fixed to the rear portion of the head for manipulation of the head. After the head is introduced into the blood vessel by the guide wire extending through the through hole of the head, when the head is pushed into the constricted portion by pushing the shaft, the tapered front portion enlarges the constricted portion. Thus, in case the constricted portion is too small for a balloon catheter, the constricted portion can be enlarged to a size sufficient for the balloon catheter.

REFERENCES:
patent: 1268576 (1918-06-01), Jensen
patent: 1899492 (1933-02-01), Beebe
patent: 3945375 (1976-03-01), Banko
patent: 4862891 (1989-09-01), Smith
patent: 5303714 (1994-04-01), Abele et al.
patent: 5330499 (1994-07-01), Kanesaka
patent: 5342384 (1994-08-01), Sugarbaker

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