SYSTEM FOR IMPLANTING A PROSTHESIS

• US 20140288627A1
• Filed: 03/26/2014
• Published: 09/25/2014
• Est. Priority Date: 09/03/2003
• Status: Active Grant

• Current Assignee: Bolton Medical, Inc. (Terumo Corporation)
• Original Assignee: Bolton Medical, Inc. (Terumo Corporation)
• Inventors: Ouellette, Gerry, Arbefeuille, Samuel, Berra, Humberto, Barbre, Carol
• Granted Patent: US 9,907,686 B2
• Time in Patent Office: Days
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/825 having longitudinal struts
• CPC Class Codes: A61F 2002/826 more than one stent being applied sequentially
• CPC Class Codes: A61F 2002/828 Means for connecting a plurality of stents allowing flexibility of the whole structure
• CPC Class Codes: A61F 2002/9505 having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
• CPC Class Codes: A61F 2002/9528 for retrieval of stents
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers

Abstract

A system for implanting a prosthesis includes a prosthesis delivery device having a handle, an inner lumen, a nose cone, an intermediate lumen, a prosthesis sheath at the distal end of the intermediate lumen for holding therein a prosthesis to be implanted, and an outer lumen fixedly connected to the handle. The system can include a lumen control assembly operable to move the intermediate lumen with the prosthesis sheath between a retracted position and an extended position.

Claims

1. A system for implanting a prosthesis, comprising:

a prosthesis delivery device having;

a handle having a longitudinal axis and a lumen control assembly;

an inner lumen having a distal end extending from said lumen control assembly, said inner lumen including a first lumen and a second lumen disposed about said first lumen, wherein said first and second lumens are slidably displaceable with respect to one another;

a nose cone at said distal end of said inner lumen and having a proximal end;

an intermediate lumen having a distal end and extending from said lumen control assembly, said intermediate lumen being disposed about said inner lumen;

a prosthesis sheath having a distal end and extending from said distal end of said intermediate lumen and about said inner lumen for holding therein a prosthesis to be implanted, wherein said distal end of said prosthesis sheath is releasably held under said proximal end of said nose cone;

an outer lumen fixedly connected to said handle with respect to said longitudinal axis and extending about said intermediate lumen; and

said lumen control assembly operable to move said intermediate lumen about said inner lumen with said prosthesis sheath between;

a retracted position in which, when a prosthesis is disposed within said prosthesis sheath, both said prosthesis sheath and the prosthesis are disposed within said outer lumen; and

an extended position in which, when the prosthesis is disposed within said prosthesis sheath, a portion of said prosthesis sheath containing the prosthesis is disposed outside said outer lumen wherein said lumen control assembly includes;

a first state in which said inner lumen moves dependently with said intermediate lumen along said longitudinal axis; and

a second state in which said inner lumen moves independently from said intermediate lumen along said longitudinal axis.

2. The system of claim 1, further comprising an interior lumen control device controlling displacement of said second lumen with respect to said first lumen.

3. The system of claim 1, further including a guidewire slidably disposed within the first lumen.

4. The system of claim 3, wherein said lumen control assembly has a third state in which:

said intermediate lumen and said first lumen are axially fixed with respect to one another; and

said second lumen is slidably disposed between said intermediate lumen and said first lumen.

5. The system of claim 4, further including a fourth state, wherein said inner lumen is fixed along said longitudinal axis when said prosthesis sheath and said intermediate lumen are moved in a proximal direction along said longitudinal axis to unsheath a prosthesis contained in said prosthesis sheath.

6. The system of claim 5, further including a fifth state, wherein said inner lumen is fixed relative to said outer lumen whereby said inner lumen is fixed along said longitudinal axis when said prosthesis sheath and said intermediate lumen are moved in a proximal direction along said longitudinal axis to unsheath a prosthesis contained in said prosthesis sheath.

7. The system of claim 6, further including a sixth state, wherein, after reaching said extended position, said inner lumen is fixed relative to said longitudinal axis while said intermediate lumen with said prosthesis sheath move proximally along said longitudinal axis.

8. The system of claim 1, wherein:

said outer lumen has an inner diameter; and

said prosthesis sheath has a prosthesis holding diameter no less than said inner diameter.

9. A system for implanting a prosthesis, comprising:

a prosthesis delivery device having;

a handle having a longitudinal axis and a lumen control assembly;

an inner lumen extending from said lumen control assembly;

an intermediate lumen having a distal end and disposed about said inner lumen, connected to said lumen control assembly;

a prosthesis sheath extending from the distal end of said intermediate lumen for holding therein a prosthesis to be implanted, said prosthesis sheath disposed about said inner lumen;

an outer lumen fixedly connected to said handle with respect to said longitudinal axis and extending about said intermediate lumen; and

said lumen control assembly;

operable to move said intermediate lumen with said prosthesis sheath between;

a refracted position in which, when the prosthesis is disposed within said prosthesis sheath, both said prosthesis sheath and the prosthesis are disposed within said outer lumen; and

an extended position in which, when the prosthesis is disposed within said prosthesis sheath, a portion of said prosthesis sheath containing the prosthesis is disposed outside said outer lumen, wherein the lumen control assembly includes

a first state in which said inner lumen moves dependently with said intermediate lumen along said longitudinal axis;

a second state in which said inner lumen moves independently from said intermediate lumen along said longitudinal axis; and

a third state, wherein said inner lumen is fixed along said longitudinal axis when said prosthesis sheath and said intermediate lumen are moved in a proximal direction along said longitudinal axis to unsheath the prosthesis contained in said prosthesis sheath.

10. The system of claim 9, further including a fourth state, wherein said inner lumen is fixed to said outer lumen, whereby said inner lumen is fixed along said longitudinal axis when said prosthesis sheath and said intermediate lumen are moved in a proximal direction along said longitudinal axis to unsheath a prosthesis contained in said prosthesis sheath.

11. The system of claim 10, wherein:

said inner lumen comprises a first lumen and a second lumen disposed about said first lumen;

said first and second lumens are slidably displaceable with respect to one another.

12. The system of claim 11, further including an interior lumen control device controlling displacement of said second lumen with respect to said first lumen.

13. The system of claim 11, further including a guidewire slidably disposed within the first lumen.

14. The system of claim 13, wherein said lumen control assembly has a fifth state in which:

said intermediate lumen and said first lumen are axially fixed with respect to one another; and

said second lumen is slidably disposed between said intermediate lumen and said first lumen.

15. The system of claim 14, further including a sixth state wherein, after reaching said extended position, said inner lumen is fixed relative to said longitudinal axis while said intermediate lumen with said prosthesis sheath are moveable proximally along said longitudinal axis.