Push/pull wire anchor
First Claim
1. A catheter, which comprises:
- a) a catheter liner extending from a catheter liner proximal portion to a deflectable distal portion;
b) a pull wire extending along the catheter liner from a proximal pull wire portion to a distal pull wire portion having a pull wire distal end thereof, wherein the distal pull wire portion extends along at least the deflectable distal portion of the catheter liner;
c) at least one anchor contacted to the distal pull wire portion, wherein the anchor has a conical portion flaring annularly away from the pull wire as it extends along the pull wire;
d) a band spaced from the anchor and in contact with the distal pull wire portion, wherein the band extends at least part way around a perimeter of the catheter liner; and
e) an encapsulant contacting at least the deflectable distal portion of the catheter liner and the pull wire distal portion including the anchor and the band, wherein the encapsulant resides between the pull wire and an annular inner surface of the conical portion of the anchor.
7 Assignments
0 Petitions
Accused Products
Abstract
A method for making a deflectable catheter includes positioning a flexible element along a catheter liner. A flexible element distal portion extends along at least a portion of a deflectable distal end portion of the catheter liner. At least one anchor is engaged to the flexible element distal portion. The flexible element resides radially between the catheter liner and a band extending at least part way around a perimeter of the liner. An encapsulant, positioned around at least the flexible element distal portion, forms at least a portion of a sidewall of the deflectable distal end portion of the liner. The anchor and band are within the sidewall so that the encapsulant transmits pushing and pulling forces from the at least one anchor to the deflectable distal end portion of the liner.
92 Citations
21 Claims
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1. A catheter, which comprises:
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a) a catheter liner extending from a catheter liner proximal portion to a deflectable distal portion; b) a pull wire extending along the catheter liner from a proximal pull wire portion to a distal pull wire portion having a pull wire distal end thereof, wherein the distal pull wire portion extends along at least the deflectable distal portion of the catheter liner; c) at least one anchor contacted to the distal pull wire portion, wherein the anchor has a conical portion flaring annularly away from the pull wire as it extends along the pull wire; d) a band spaced from the anchor and in contact with the distal pull wire portion, wherein the band extends at least part way around a perimeter of the catheter liner; and e) an encapsulant contacting at least the deflectable distal portion of the catheter liner and the pull wire distal portion including the anchor and the band, wherein the encapsulant resides between the pull wire and an annular inner surface of the conical portion of the anchor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A catheter, which comprises:
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a) a catheter liner extending from a catheter liner proximal portion to a deflectable distal portion; b) a pull wire positioned along the catheter liner from a proximal pull wire portion adjacent to the catheter proximal portion to a distal pull wire portion having a pull wire distal thereof, wherein the distal pull wire portion extends along at least the deflectable distal end portion of the catheter liner; c) an anchor comprising at least one flared projection at at least one of an anchor proximal end and an anchor distal end, the flared projection flaring away from the pull wire to thereby provide a space there between, wherein an engaging portion of the anchor is contacted to the distal pull wire portion; and d) an encapsulant contacting the distal pull wire portion and the anchor including its flared projection and the space between the flared projection and the pull wire to thereby form at least a portion of a sidewall of the catheter at the deflectable distal portion of the catheter liner. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A catheter, which comprises:
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a) a catheter liner extending from a catheter liner proximal portion to a deflectable distal portion; b) a pull wire extending along the catheter liner from a proximal pull wire portion to a distal pull wire portion having a pull wire distal end thereof, wherein the distal pull wire portion extends along at least the deflectable distal portion of the catheter liner; c) at least one anchor contacted to the distal pull wire portion spaced proximally from the pull wire distal end, wherein the anchor has a conical portion flaring annularly away from the pull wire as it extends along the pull wire; d) a band spaced from the anchor and in contact with the distal pull wire portion, wherein the band extends at least part way around a perimeter of the catheter liner; e) an encapsulant contacting at least the deflectable distal portion of the catheter liner and the distal pull wire portion including the anchor and the band, wherein the encapsulant resides between the pull wire and an annular inner surface of the conical portion of the anchor; and f) a shrink tubing surrounding the encapsulant contacting at least the deflectable distal portion of the catheter liner and the distal pull wire portion including the anchor and the band.
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21. A catheter, which comprises:
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a) a catheter liner extending from a catheter liner proximal portion to a deflectable distal portion; b) a pull wire extending along the catheter liner from a proximal pull wire portion to a distal pull wire portion having a pull wire distal end thereof, wherein the distal pull wire portion extends along at least the deflectable distal portion of the catheter liner; c) at least one anchor contacted to the distal pull wire portion, wherein the anchor has a conical portion flaring annularly away from the pull wire as it extends along the pull wire; and d) an encapsulant contacting at least the deflectable distal portion of the catheter liner and the pull wire distal portion including the anchor, wherein the encapsulant resides between the pull wire and an annular inner surface of the conical portion of the anchor.
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Specification