US6126685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and methods for placement and repositioning of intraluminal prostheses
Assignee: Medtronic Vascular Inc
•
Filing: 1998-07-31
•
Granted: 2000-10-03
•
Expires: 2018-07-31
Abstract
Abstract A delivery catheter for a radially compressible tubular prosthesis comprises an elongate shaft slidably received within an elongate sheath. The prosthesis is carried over the distal end of the shaft where it is contained in a radially compressed configuration by the sheath. After introducing the catheter to a desired target location within a body lumen, the prosthesis may be released by proximally retracting the sheath. The prosthesis will remain anchored to the shaft during at least part of the release procedure, permitting the user to recapture the prosthesis by distally advancing the sheath.
Inventors
- 👤 Jay A. Lenker
- 👤 Kirsten Freislinger
- 👤 Michael A. Evans
- 👤 Gwendolyn A. Watanabe
- 👤 Timothy J. Ryan
- 👤 Christopher K. Zarins
- 👤 Richard O. Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:57
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/95; A61F2/962; A61F2/966; A61F2/97; A61F2/0095; A61F2/848; A61F2/89; A61F2/9522; A61F2002/065; A61F2002/067; A61F2002/075; A61F2002/826; A61F2002/91533; A61F2002/91541; A61F2002/9505; A61F2002/9511; A61F2002/9534; A61F2002/9665; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2220/00; A61F2220/0025; A61F2220/0058; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61F2240/00; A61F2240/001; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
155 words
A method for preparing a prosthesis delivery catheter, said method comprising: providing a delivery catheter including: (a) an elongate flexible shaft having a proximal end, a distal end, and a coupling member at the distal end; and (b) an elongate member slidably attached to the shaft and having a proximal end, a distal end, and a coupling member at the distal end; providing a prosthesis cartridge including: (a) a shaft extension having a proximal end, a distal end, and a coupling member at the proximal end; (b) a sheath extension having a proximal end, a distal end and a coupling member at the proximal end; and (c) a prothesis radially compressed over the shaft extension and within the sheath extension; and attaching the coupling member on the shaft extension to the coupling member on the flexible elongate shaft and attaching the coupling member on the sheath extension to the coupling member on the elongate member.
Claim 2
Independent Claim
155 words
A method for preparing a prosthesis delivery catheter, said method comprising: providing a delivery catheter including: (a) an elongate flexible shaft having a proximal end, a distal end, and a coupling member at the distal end; and (b) an elongate member slidably attached to the shaft and having a proximal end, a distal end, and a coupling member at the distal end; providing a prosthesis cartridge including: (a) a shaft extension having a proximal end, a distal end, and a coupling member at the proximal end; (b) a sheath extension having a proximal end, a distal end and a coupling member at the proximal end; and (c) a prothesis radially compressed over the shaft extension and within the sheath extension; and attaching the coupling member on the shaft extension to the coupling member on the flexible elongate shaft and attaching the coupling member on the sheath extension to the coupling member on the elongate member.
Claim 3
Dependent Claim
126 words
A prosthesis cartridge for use with a delivery catheter including an elongate flexible shaft having a proximal end and a distal end, and an elongate member slidably attached to the shaft, the elongate member having a proximal end and a distal end, said prosthesis cartridge comprising: a shaft extension having a proximal end, a distal end, and a coupling member at the proximal end for coupling to a distal end of the elongate flexible shaft of the delivery catheter; a sheath extension having a proximal end, a distal end, and a coupling member at the proximal end for coupling to a distal end of the elongate member of the delivery catheter; and an endoluminal prosthesis radially compressed over the shaft extension and within the sheath extension.
Claim 4
Dependent Claim
126 words
A prosthesis cartridge for use with a delivery catheter including an elongate flexible shaft having a proximal end and a distal end, and an elongate member slidably attached to the shaft, the elongate member having a proximal end and a distal end, said prosthesis cartridge comprising: a shaft extension having a proximal end, a distal end, and a coupling member at the proximal end for coupling to a distal end of the elongate flexible shaft of the delivery catheter; a sheath extension having a proximal end, a distal end, and a coupling member at the proximal end for coupling to a distal end of the elongate member of the delivery catheter; and an endoluminal prosthesis radially compressed over the shaft extension and within the sheath extension.
Claim 5
Dependent Claim
185 words
A set of alternative, selectable prosthesis cartridges for use with a delivery catheter including an elongate flexible shaft having a proximal end and a distal end, and an elongate member slidably attached to the shaft, the elongate member having a proximal end and a distal end, the set comprising: a plurality of prosthesis cartridges, wherein each prosthesis cartridge comprises: a shaft extension having a proximal end, a distal end, and a coupling member at the proximal for coupling to the distal end of the elongate flexible shaft of the delivery catheter; a sheath extension having a proximal end, a distal end, and a coupling member at the proximal end for coupling to the distal end of the elongate member of the delivery catheter; and an endoluminal prosthesis radially compressed over the shaft extension and within the sheath extension; wherein at least some of said cartridges comprise prostheses having different lengths, wherein the shaft extension coupling members are interchangeably coupleable to the distal end of the elongate flexible shaft while the sheath extension coupling members are interchangeably coupleable to the distal end of the elongate member.
Claim 6
Dependent Claim
185 words
A set of alternative, selectable prosthesis cartridges for use with a delivery catheter including an elongate flexible shaft having a proximal end and a distal end, and an elongate member slidably attached to the shaft, the elongate member having a proximal end and a distal end, the set comprising: a plurality of prosthesis cartridges, wherein each prosthesis cartridge comprises: a shaft extension having a proximal end, a distal end, and a coupling member at the proximal for coupling to the distal end of the elongate flexible shaft of the delivery catheter; a sheath extension having a proximal end, a distal end, and a coupling member at the proximal end for coupling to the distal end of the elongate member of the delivery catheter; and an endoluminal prosthesis radially compressed over the shaft extension and within the sheath extension; wherein at least some of said cartridges comprise prostheses having different lengths, wherein the shaft extension coupling members are interchangeably coupleable to the distal end of the elongate flexible shaft while the sheath extension coupling members are interchangeably coupleable to the distal end of the elongate member.
Claim 7
Dependent Claim
16 words
A prosthesis cartridge as in claim 2, wherein the cartridge is contained in a sterile package.
Claim 8
Dependent Claim
90 words
An endoluminal prosthesis delivery system comprising: an elongate flexible shaft having a proximal end and a distal end; a resilient radially compressible endoluminal prosthesis having a proximal end and a distal end; a cover attached near the distal end of the shaft, the cover extending distally from the shaft and over the radially compressible prosthesis from the proximal end of the prosthesis to the distal end of the prosthesis; and a sheath slidably received over the shaft, the sheath covering the cover while said cover releasably radially restrains the prosthesis.
Claim 9
Dependent Claim
90 words
An endoluminal prosthesis delivery system comprising: an elongate flexible shaft having a proximal end and a distal end; a resilient radially compressible endoluminal prosthesis having a proximal end and a distal end; a cover attached near the distal end of the shaft, the cover extending distally from the shaft and over the radially compressible prosthesis from the proximal end of the prosthesis to the distal end of the prosthesis; and a sheath slidably received over the shaft, the sheath covering the cover while said cover releasably radially restrains the prosthesis.
Claim 10
Dependent Claim
78 words
A delivery system as in claim 5, further comprising a mechanism operable from the proximal end of the shaft which releases the cover from over the prosthesis so that at least a portion of the prosthesis resiliently expands within a body lumen, wherein the cover maintains radial compression of a portion of the prosthesis during operation of the mechanism, and wherein an alternative portion of the prosthesis expands and conforms to the interior surface of the body lumen.
Claim 11
Dependent Claim
74 words
An endoluminal prosthesis delivery system comprising: an elongate flexible shaft having a proximal end and a distal end; a resilient radially compressible endoluminal prosthesis; a cover attached near the distal end of the shaft, the cover releasably disposed over the radially compressible prosthesis; and a sheath slidably received over the shaft, the sheath covering the cover while said cover radially restrains the prosthesis; wherein the cover comprises a plurality of distally oriented axial elements.
Claim 12
Dependent Claim
74 words
An endoluminal prosthesis delivery system comprising: an elongate flexible shaft having a proximal end and a distal end; a resilient radially compressible endoluminal prosthesis; a cover attached near the distal end of the shaft, the cover releasably disposed over the radially compressible prosthesis; and a sheath slidably received over the shaft, the sheath covering the cover while said cover radially restrains the prosthesis; wherein the cover comprises a plurality of distally oriented axial elements.
Claim 13
Dependent Claim
51 words
An endoluminal prosthesis delivery system comprising: an elongate flexible shaft having a proximal end and a distal end; a plurality of axial elements attached near the distal end of the shaft; a resilient tubular endoluminal prosthesis radially compressed between the axial elements; and a sheath slidably disposed over the axial elements.
Claim 14
Dependent Claim
51 words
An endoluminal prosthesis delivery system comprising: an elongate flexible shaft having a proximal end and a distal end; a plurality of axial elements attached near the distal end of the shaft; a resilient tubular endoluminal prosthesis radially compressed between the axial elements; and a sheath slidably disposed over the axial elements.
Claim 15
Dependent Claim
21 words
A delivery system as in claim 8, further comprising an endcap which releasably restrains the distal ends of the axial elements.
Claim 16
Dependent Claim
25 words
A delivery system as in claim 8, wherein the axial elements axially restrain the prosthesis when the sheath is withdrawn proximally to release the prosthesis.
Claim 17
Dependent Claim
18 words
A delivery system as in claim 10, wherein the axial elements resiliently flex outward to release the prosthesis.
Claim 18
Dependent Claim
35 words
A delivery system as in claim 8, wherein the axial elements axially restrain the prosthesis after a portion of the prosthesis expands so that advancing the sheath distally compresses the expanded portion of the prosthesis.
Claim 19
Dependent Claim
149 words
A delivery system comprising: a prosthesis cartridge comprising: a shaft extension having a proximal end, a distal end, and a coupling member at the proximal end; a sheath extension having a proximal end, a distal end, and a coupling member at the proximal end; and an endoluminal prosthesis radially compressed over the shaft extension and within the sheath extension; and a delivery catheter which is separated from and securable to the prosthesis cartridge, the delivery catheter comprising: an elongate flexible shaft having a proximal end, a distal end, and a coupling member at the distal end for coupling to the coupling member of the shaft extension of the prosthesis cartridge; and an elongate member slidably attached to the shaft and having a proximal end, a distal end, and a coupling member at the distal end for coupling to the coupling member of the sheath extension of the prosthesis cartridge.
Claim 20
Dependent Claim
149 words
A delivery system comprising: a prosthesis cartridge comprising: a shaft extension having a proximal end, a distal end, and a coupling member at the proximal end; a sheath extension having a proximal end, a distal end, and a coupling member at the proximal end; and an endoluminal prosthesis radially compressed over the shaft extension and within the sheath extension; and a delivery catheter which is separated from and securable to the prosthesis cartridge, the delivery catheter comprising: an elongate flexible shaft having a proximal end, a distal end, and a coupling member at the distal end for coupling to the coupling member of the shaft extension of the prosthesis cartridge; and an elongate member slidably attached to the shaft and having a proximal end, a distal end, and a coupling member at the distal end for coupling to the coupling member of the sheath extension of the prosthesis cartridge.
Claim 21
Dependent Claim
176 words
A prosthesis system comprising: a delivery catheter including an elongate flexible shaft having a proximal end and a distal end, and an elongate member slidably attached to the shaft, the elongate member having a proximal end and a distal end: a plurality of prosthesis cartridges, wherein each prosthesis cartridge comprises: a shaft extension having a proximal end, a distal end, and a coupling member at the proximal for coupling to the distal end of the elongate flexible shaft of the delivery catheter; a sheath extension having a proximal end, a distal end, and a coupling member at the proximal end for coupling to the distal end of the elongate member of the delivery catheter; and an endoluminal prosthesis radially compressed over the shaft extension and within the sheath extension; wherein at least some of said cartridges comprise prostheses having different lengths, wherein the shaft extension coupling members are interchangeably coupleable to the distal end of the elongate flexible shaft while the sheath extension coupling members are interchangeably coupleable to the distal end of the elongate member.
Claim 22
Dependent Claim
176 words
A prosthesis system comprising: a delivery catheter including an elongate flexible shaft having a proximal end and a distal end, and an elongate member slidably attached to the shaft, the elongate member having a proximal end and a distal end: a plurality of prosthesis cartridges, wherein each prosthesis cartridge comprises: a shaft extension having a proximal end, a distal end, and a coupling member at the proximal for coupling to the distal end of the elongate flexible shaft of the delivery catheter; a sheath extension having a proximal end, a distal end, and a coupling member at the proximal end for coupling to the distal end of the elongate member of the delivery catheter; and an endoluminal prosthesis radially compressed over the shaft extension and within the sheath extension; wherein at least some of said cartridges comprise prostheses having different lengths, wherein the shaft extension coupling members are interchangeably coupleable to the distal end of the elongate flexible shaft while the sheath extension coupling members are interchangeably coupleable to the distal end of the elongate member.
Claim 23
Dependent Claim
98 words
An endoluminal prosthesis delivery system comprising: a tubular sheath having a proximal end and a distal end and a lumen therebetween; a resilient tubular endoluminal prosthesis radially compressed within the lumen of the sheath; a plurality of axial elements disposed between the endoluminal prosthesis and the sheath, the axial elements extending from proximally of the prosthesis to distally of the prosthesis; and an elongate flexible shaft extending proximally from the axial elements; wherein the axial elements axially restrain the prosthesis when the sheath is withdrawn proximally, and wherein the axial elements flex radially outward to release the prosthesis.
Claim 24
Dependent Claim
98 words
An endoluminal prosthesis delivery system comprising: a tubular sheath having a proximal end and a distal end and a lumen therebetween; a resilient tubular endoluminal prosthesis radially compressed within the lumen of the sheath; a plurality of axial elements disposed between the endoluminal prosthesis and the sheath, the axial elements extending from proximally of the prosthesis to distally of the prosthesis; and an elongate flexible shaft extending proximally from the axial elements; wherein the axial elements axially restrain the prosthesis when the sheath is withdrawn proximally, and wherein the axial elements flex radially outward to release the prosthesis.
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