Balloon construction for occlusion device
OwnerJefferey C. Bleam, Juan T. Domingo +2inventors
InventorsJefferey C. Bleam, Juan T. Domingo, Ketan P. Muni, Sivette Lam
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Abstract
A balloon catheter construction is disclosed wherein bands are used to mechanically attach a balloon to a catheter shaft. The bands provide a mechanical seal that secures the balloon to the catheter shaft without the use of an adhesive and prevents fluid loss from the interior of the balloon. Fillets may be provided at the ends of the balloon and band to provide a smooth transition region between the shaft and the balloon for facilitating advancement through a blood vessel.
Claims19
An occlusion balloon guidewire, comprising:
- an elongate body having an outer diameter and proximal and distal end portions, said elongate body being formed with a lumen extending along a longitudinal axis;
- a compliant balloon having proximal and distal end portions, said compliant balloon being disposed over said distal end portion of said elongate body and being in fluid communication with said lumen;
- and
- first and second bands disposed over said proximal and distal end portions of said balloon, respectively, for adhesiveless coupling of said balloon to said elongate body and for providing a mechanical seal at said proximal and distal end portions of said balloon to prevent fluid loss from an interior region of said balloon.
A balloon catheter, comprising:
- an elongate body having an outer diameter and proximal and distal end portions, said elongate body being formed with a lumen extending longitudinally therethrough;
- an expandable tubular member having proximal and distal end portions, said tubular member being disposed over said distal end portion of said elongate body, said tubular member having an inner diameter of about the same dimension as said outer diameter of said elongate body;
- and
- first and second rigid bands disposed over said proximal and distal end portions of said tubular member, respectively, for attaching said tubular member to said elongated body and for providing a mechanical seal at said proximal and distal end portions of said tubular member to prevent fluid loss from the interior of said tubular member.
A method of manufacturing a balloon catheter, comprising:
- providing a catheter shaft having a proximal end portion and a distal end portion and a lumen extending therethrough;
- sliding an expandable tubular member over the distal end portion of the catheter shaft, the expandable tubular body having a proximal end and a distal end;
- and
- applying first and second bands over the proximal and distal ends of the expandable tubular member, respectively;
- to form a mechanical bond that firmly secures the tubular member to the catheter shaft without the use of adhesive between the tubular member and the catheter shaft.
Dependencies are inferred from the claim text.