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US 5,049,131 AGranted
Balloon catheter
AssigneeAshridge AG
InventorJacobus A. C. Deuss
Life of this patent
Estimating the term…
Abstract
A balloon catheter for the widening of passages in the body, such as blood vessels, comprises a tubular body connected at one side to the interior of a cylindrical balloon and at another side to a pump unit. The balloon can be enlarged from a first predetermined diameter to a second predetermined diameter without completely withdrawing the catheter from the body passages.
Claims12
A balloon catheter for the widening of passages in the human body comprising:
- an inflatable balloon having a predetermined length and comprising means for widening a passage in the body to a first operational diameter and widening a passage in the body to a larger operational diameter;
- and
- pump means for delivering an inflating medium to said balloon, said pump means in connection with said balloon through a tubular body connected at one end thereof to said pump means and at a distal end thereof to said balloon;
- said means for widening comprising a portion of an outer wall of the balloon, said portion having an inward fold therein, and means for fixing said inward fold in said portion of the outer wall until a predetermined pressure is reached in said balloon whereby said means for fixing releases said inward fold;
- the portion of said outer wall with said inward fold having a substantially cylindrical shape with an outer diameter corresponding to said first operational diameter, and said portion of said outer wall after release of said inward fold has a substantially cylindrical shape with an outer diameter corresponding to said larger operational diameter.
2 more elements
Dependencies are inferred from the claim text.