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US 5,395,336 AGranted
Method for joining portions of a inflation/expansion catheter and a catheter so formed
AssigneeMallinckrodt Medical, Inc.
InventorsAnita L. Barclay, Robert Lobdell
Life of this patent
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Abstract
The present invention relates to a method of joining portions of an inflation/expansion catheter. In particular, the present invention relates to an improved method of joining coaxial lumen portions to multi-lumen portions of an inflation/expansion catheter. More particularly, the present invention relates to a method of joining a multi-lumen shaft to a coaxial balloon shaft of a dilatation catheter.
Claims6
A method of joining portions of a catheter, said catheter including
- a proximal shaft with at least two lumens, wherein said at least two lumens are in a side-by-side arrangement;
- a distal shaft with at least two members, wherein said at least two tube members are arranged in a coaxial arrangement;
- said method comprising the steps of:
- a) providing said proximal shaft;
- b) inserting at least two mandrils through the entire length of an omen lumen of said proximal shaft such that a portion of said mandrils extends beyond each end of said proximal shaft;
- c) providing a tube member of said distal shaft;
- d) slidingly engaging one tube member of said distal shaft over said mandrils such that a portion of said mandrils extends beyond each end of said tube member;
- e) threading said tube member over said mandrils and inserting a proximal end of said tube member into a distal end of said lumen of said proximal shaft through which said mandrils have been inserted;
- f) repeating said stems b, c, d, and e, until only one tube member remains for said distal shaft and only one omen lumen remains for said proximal shaft;
- g) slidingly engaging the one remaining tube member over all said mandrils and all previously engaged tube members;
- h) threading said remaining tube member over said mandrils and said tube members and slidingly engaging said remaining tube member over the distal end of said proximal shaft to create a lap joint;
- and
- i) treating said lap joint to seal said proximal shaft to said distal shaft.
10 more elements
A method of joining different types of tubes, said method comprising;
- a) providing a first shaft with at least two lumens, wherein said at least two lumens are in a side-by-side arrangement;
- b) providing a second shaft comprised of at least two tube members, wherein each tube member has a lumen associated therewith, and wherein said at least two tube members are arranged in a coaxial arrangement;
- c) inserting at least two mandrils through the entire length of an open lumen of said first shaft such that a portion of said mandrils extends beyond each end of said first shaft;
- d) slidingly engaging one tube member of said second shaft over said mandrils such that a portion of said mandrils extends beyond each end of said tube member;
- e) threading said tube member over said mandrils and inserting a proximal end of said tube member into a distal end of said lumen of said first shaft through which said mandrils have been inserted;
- f) repeating said steps c, d, and e, until only one tube member remains for said second shaft and only one open lumen remains for said first shaft;
- g) slidingly engaging the one remaining tube member over all said mandrils and all previously engaged tube members;
- h) threading said remaining tube member over said mandrils and said tube members and slidingly engaging said remaining tube member over the distal end of said first shaft to create a lap joint;
- and
- treating said lap joint to seal said first shaft to said second shaft.
7 more elements
Dependencies are inferred from the claim text.