Coaxial PTCA catheter with anchor joint

Details Coaxial PTCA catheter with anchor joint Coaxial PTCA catheter with anchor joint

1993-12-22

1998-06-02

Thaler, Michael H.

Surgery

Instruments

Internal pressure applicator

604 96, A61M 2510

Patent

active

057591911

ABSTRACT:
A balloon dilatation catheter used for percutaneous transluminal coronary angioplasty includes a coaxial construction of an inner tube and an outer tube. The inner tube extends distally beyond the distal end of the outer tube. A dilatation balloon is mounted on the distal end of the catheter and is connected at its proximal end to the distal end of the outer tube and at its distal end to the distal end of the inner tube. The lumen of the inner tube is adapted to receive a guidewire and may permit pressure monitoring and liquid infusion. The annular inflation lumen is defined between the inner and outer tubes. The distal end of the outer tube extends into the balloon and is anchored directly to the inner tube. The balloon may be inflated and deflated through an annular inflation lumen defined between the inner and outer tubes, there being openings in the outer tube within the balloon to communicate the inflation lumen with the interior of the balloon. The catheter displays increased column strength and resistance to axial buckling and balloon bunching by reason of the secure connection between the distal end of the outer tube and the inner tube.

REFERENCES:
patent: 3543759 (1970-12-01), McWhorter
patent: 4323071 (1982-04-01), Simpson et al.
patent: 4638805 (1987-01-01), Powell
patent: 4646742 (1987-03-01), Packard et al.
patent: 4665925 (1987-05-01), Millar
patent: 4689041 (1987-08-01), Corday et al.
patent: 4794928 (1989-01-01), Kletschka
patent: 4955895 (1990-09-01), Sugiyama et al.
patent: 5100381 (1992-03-01), Burns
patent: 5129887 (1992-07-01), Euteneuer et al.
Promotional Sheet for Probe Balloon-On-A-Wire.TM. Dilatation System, distributed by USCI Division, C.R. Bard, Inc., Jan. 1989.

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