Shapable catheter using exchangeable core and method of use
First Claim
Patent Images
1. A shapable medical apparatus comprising, in combination:
- a core wire having a shaped distal portion with a predetermined non-linear shape;
a catheter having a lumen proportioned to slidably receive the core wire, the catheter including a proximal section and a distal section, the core wire slidably receivable within the lumen such that when the core wire is advanced so that at least a portion of the shaped portion is within the distal section of the catheter, the catheter is deformed to approximate the non-linear shape of the portion of the shaped portion of the core wire that is within the distal section of the catheter; and
a pull wire within the catheter, the pull wire slidable to cause deflection of the distal section of the catheter.
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Accused Products
Abstract
In a shapable catheter and method for positioning a shapable catheter within a body cavity, a core wire is provided which includes a pre-shaped region bent into a predetermined shape. A catheter is provided which includes a lumen proportioned to slidably receive the core wire. The catheter includes a rigid proximal section and a flexible distal section. A pull wire may additionally be provided to allow the user to cause deflection at a distal portion of the catheter.
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Citations
35 Claims
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1. A shapable medical apparatus comprising, in combination:
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a core wire having a shaped distal portion with a predetermined non-linear shape; a catheter having a lumen proportioned to slidably receive the core wire, the catheter including a proximal section and a distal section, the core wire slidably receivable within the lumen such that when the core wire is advanced so that at least a portion of the shaped portion is within the distal section of the catheter, the catheter is deformed to approximate the non-linear shape of the portion of the shaped portion of the core wire that is within the distal section of the catheter; and a pull wire within the catheter, the pull wire slidable to cause deflection of the distal section of the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A shapable medical apparatus comprising, in combination:
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a core wire having a distal portion with a predetermined non-linear shape; a catheter having a lumen proportioned to slidably receive the core wire, the catheter including a proximal section and a distal section, the distal section having greater flexibility than the proximal section, the core wire slidably receivable within the lumen such that when the core wire is introduced into the proximal section of the catheter, said distal portion is substantially straightened by the proximal section of the catheter, and when said core wire is advanced so that at least a portion of the distal portion is within the distal section of the catheter, the catheter is deformed to approximate the non-linear shape of the portion of the distal portion of the core wire that is within the distal section; and a pull wire within the catheter, the pull wire slidable to cause deflection of the distal section of the catheter. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of positioning a catheter within a body cavity comprising the steps of:
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(a) providing a core wire including a distal portion having a predetermined non-linear shape and further providing a catheter having a pull wire and a lumen proportioned to slidably receive the core wire, wherein the catheter includes a proximal section and a distal section; (b) passing the catheter through a vessel and into a body cavity; (c) inserting the distal portion of the core wire into the lumen; (d) passing at least a portion of the distal portion of the core wire into the distal section of the catheter, causing the portion of the distal portion of the core wire to deform the distal section of the catheter to approximate the non-linear shape of the portion of the distal portion that is within the distal section of the catheter; and (e) increasing tension on the pull wire to deflect the distal section of the catheter. - View Dependent Claims (27, 28)
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29. A method of positioning a catheter within a body cavity comprising the steps of:
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(a) providing a core wire including a distal portion having a predetermined non-linear shape and further providing a catheter having a pull wire and a lumen proportioned to slidably receive the core wire, wherein the catheter includes a proximal section and a distal section, the distal section having greater flexibility than the proximal section; (b) passing the catheter through a vessel and into a body cavity; (c) inserting the distal portion of the core wire into the lumen; (d) passing the distal portion of the core wire through the proximal section of the catheter, causing the distal portion of the core wire to substantially straighten; (e) passing at least a portion of the distal portion of the core wire into the distal section of the catheter, causing the portion of the distal portion of the core wire to deform the distal section of the catheter to approximate the non-linear shape of the portion of the distal portion that is within the distal section of the catheter; and (f) increasing tension on the pull wire to deflect the distal section of the catheter. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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Specification