Balloon dilatation catheter having a torsionally soft component
First Claim
1. A catheter comprising:
- a tube having a through passage extending from a proximal end to a distal end;
a guiding member having a proximal end and a distal end, with the guiding member extending distally beyond the distal end of the tube;
an inflatable balloon member extending around a section of the guiding member and having an interior in fluid communication with the through passage of the tube, the balloon member including a proximal end sealably connected to the distal end of the tube and a distal end; and
a torsionally soft component coupled between the balloon member and the guiding member, closely adjacent the balloon member, the torsionally soft component absorbing torque which is applied through the guiding member such that the torque is not readily transmitted to the balloon member from the guiding member.
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Accused Products
Abstract
A non-over-the-wire catheter for use in angioplasty including a core wire which extends distally beyond a distal end of a tubular member. The tubular member defines an interior passage which is in fluid communication with a distal interior passage of a waist tube that extends about the core wire. An inflatable balloon member extends about the core wire and is in fluid communication with the distal interior passage of the waist tube. A torsionally soft component is coupled between the balloon member and the core wire. The torsionally soft component absorbs torque applied to the tubular member and conveyed along the core wire such that the torque is not readily transmitted to the balloon member from the core wire.
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Citations
23 Claims
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1. A catheter comprising:
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a tube having a through passage extending from a proximal end to a distal end; a guiding member having a proximal end and a distal end, with the guiding member extending distally beyond the distal end of the tube; an inflatable balloon member extending around a section of the guiding member and having an interior in fluid communication with the through passage of the tube, the balloon member including a proximal end sealably connected to the distal end of the tube and a distal end; and a torsionally soft component coupled between the balloon member and the guiding member, closely adjacent the balloon member, the torsionally soft component absorbing torque which is applied through the guiding member such that the torque is not readily transmitted to the balloon member from the guiding member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. In a catheter system having a guiding member and an inflatable balloon member extending around a section of the guiding member, the improvement comprising:
a torsionally soft component having a proximal end secured to the balloon member and a distal end secured to the guiding member, such that the tubular member extends distally beyond the distal end of the balloon member, the torsionally soft component absorbing torque which is applied through the guiding member such that the torque is not readily transmitted to the balloon member from the guiding member.
Specification