Nested tubing sections and method for making
First Claim
1. A method for making nested tubing sections, comprising the steps of:
- providing an inner tubular member having a proximal end, a distal end, and a lumen therebetween;
heat-bonding a beading into the lumen of the inner tubular member to seal the distal end;
heat-bonding a tubular sleeve circumferentially about the distal end of the inner tubular member, so that the distal end of the tubular sleeve and the distal end of the inner tubular member are substantially aligned;
providing an outer tubular member having a proximal end, a distal end, and a lumen therebetween;
nesting the inner tubular member within the lumen of the outer tubular member so that the distal end of the tubular sleeve, the distal end of the inner tubular member, and the distal end of the outer tubular member are all substantially aligned with one another; and
heat-bonding the outer tubular member to the tubular sleeve.
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Accused Products
Abstract
The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.
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Citations
9 Claims
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1. A method for making nested tubing sections, comprising the steps of:
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providing an inner tubular member having a proximal end, a distal end, and a lumen therebetween;
heat-bonding a beading into the lumen of the inner tubular member to seal the distal end;
heat-bonding a tubular sleeve circumferentially about the distal end of the inner tubular member, so that the distal end of the tubular sleeve and the distal end of the inner tubular member are substantially aligned;
providing an outer tubular member having a proximal end, a distal end, and a lumen therebetween;
nesting the inner tubular member within the lumen of the outer tubular member so that the distal end of the tubular sleeve, the distal end of the inner tubular member, and the distal end of the outer tubular member are all substantially aligned with one another; and
heat-bonding the outer tubular member to the tubular sleeve. - View Dependent Claims (2, 3, 4, 5)
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6. A method for making nested tubing sections, comprising the steps of:
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providing an inner tubular member having a proximal end, a distal end, and a lumen therebetween;
heat-bonding a beading into the lumen of the inner tubular member to seal the distal end;
heat-bonding a tubular sleeve circumferentially about the distal end of the inner tubular member, so that the distal end of the tubular sleeve and the distal end of the inner tubular member are substantially aligned;
providing an outer tubular member having a proximal end, a distal end, and a lumen therebetween;
nesting the inner tubular member within the lumen of the outer tubular member so that the distal end of the tubular sleeve, the distal end of the inner tubular member, and the distal end of the outer tubular member are all substantially aligned with one another;
heat-bonding the outer tubular member to the tubular sleeve; and
heat bending the distal end of the inner and outer tubular members so that an axis of the distal end is displaced at approximately a ninety degree angle relative to an axis of the proximal end. - View Dependent Claims (7, 8, 9)
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Specification