US5649950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for the percutaneous transluminal front-end loading delivery and retrieval of a prosthetic occluder
Assignee: Boston Children's Hospital
•
Filing: 1995-05-01
•
Granted: 1997-07-22
•
Expires: 2015-05-01
Abstract
Abstract A system for percutaneous transluminal front-end delivery and retrieval of a collapsible prosthetic occluder includes a front-end loading portion, a control assembly and an introducer and retrieval sheath assembly. The front-end loading portion includes a tapering lumen portion and a smaller diameter distal lumen portion. An infusion port communicates with the distal lumen portion immediately adjacent the distal end of the tapering lumen portion. A valve assembly seals the front-end loading portion lumen proximally of the collapsed occluder. The distal end of the front-end loading portion lumen is inserted into the proximal end of an introducer and retrieval sheath assembly. A control assembly advances the occluder through the front-end loading portion, the introducer and retrieval sheath assembly and into the defect site. The retrieval sheath assembly is less flexible than the introducer sheath and is sufficiently rigid to evert the deployed occluder when retracted thereagainst.
Inventors
- 👤 George Bourne
- 👤 Randall W. Davis
- 👤 George Duval
- 👤 Dennis Goodine
- 👤 James E. Lock
- 👤 Gerry Ouellette
- 👤 Stanton B. Perry
- 👤 Maria Wagner
- 👤 Gregory R. Whittaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:16
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/0057; A61B2017/00575; A61B2017/00592; A61B2017/00606; A61B2017/00619; A61B2017/00623; A61B2017/00831; A61B2017/00902
Claims Analysis
Total Claims: 95
Claim 1
Independent Claim
242 words
A front-end loading delivery device for transluminal delivery of a collapsible prosthetic occluder and retrieval sheath assembly, comprising: a front-end loading portion comprising a main body having a distal end, a proximal end and a lumen extending therethrough, a portion of said lumen being tapered inwardly toward a smaller diameter distal portion; an infusion port extending through said main body and in direct communication with said distal portion of said lumen; a valve for sealing said lumen proximally of said small diameter distal portion; a control assembly comprising: an elongated shaft having a proximal end, a flexible distal end and a lumen extending therethrough; a locking wire extending through said lumen of said elongated shaft having a proximal end and a locking member at a distal end which is extendable beyond said flexible distal end of said elongated shaft; and a portion of said flexible distal end of said elongated shaft being adapted to lockingly hold said locking member and a locking member of a collapsible prosthetic occluder; an introducer sheath having a proximal end, a flexible distal end which is bendable to conform to a shape of a body lumen adjacent a defect site and a lumen extending therethrough; and a retrieval sheath removeably mounted about said introducer sheath and having a lumen extending therethrough adapted to slidably receive said introducer sheath, a distal end of said retrieval sheath being less flexible than said flexible distal end of said introducer sheath.
Claim 2
Dependent Claim
242 words
A front-end loading delivery device for transluminal delivery of a collapsible prosthetic occluder and retrieval sheath assembly, comprising: a front-end loading portion comprising a main body having a distal end, a proximal end and a lumen extending therethrough, a portion of said lumen being tapered inwardly toward a smaller diameter distal portion; an infusion port extending through said main body and in direct communication with said distal portion of said lumen; a valve for sealing said lumen proximally of said small diameter distal portion; a control assembly comprising: an elongated shaft having a proximal end, a flexible distal end and a lumen extending therethrough; a locking wire extending through said lumen of said elongated shaft having a proximal end and a locking member at a distal end which is extendable beyond said flexible distal end of said elongated shaft; and a portion of said flexible distal end of said elongated shaft being adapted to lockingly hold said locking member and a locking member of a collapsible prosthetic occluder; an introducer sheath having a proximal end, a flexible distal end which is bendable to conform to a shape of a body lumen adjacent a defect site and a lumen extending therethrough; and a retrieval sheath removeably mounted about said introducer sheath and having a lumen extending therethrough adapted to slidably receive said introducer sheath, a distal end of said retrieval sheath being less flexible than said flexible distal end of said introducer sheath.
Claim 3
Dependent Claim
20 words
The front-end loading delivery and retrieval device according to claim 1 wherein said elongated shaft further comprises a hypodermic tube.
Claim 4
Dependent Claim
21 words
The front-end loading delivery and retrieval device according to claim 2 wherein said hypodermic tube is encapsulated in a non-thrombogenic jacket.
Claim 5
Dependent Claim
36 words
The front-end loading delivery and retrieval device according to claim 1 wherein said front-end loading portion distal end is constructed and arranged for insertion into a hub at a proximal end of said introducer sheath lumen.
Claim 6
Dependent Claim
36 words
The front-end loading delivery and retrieval device according to claim 1 wherein said infusion port opens into said front-end loading portion lumen distal portion immediately adjacent said inwardly tapered portion of said front-end loading portion lumen.
Claim 7
Dependent Claim
25 words
The front-end loading delivery and retrieval device according to claim 1 wherein said distal portion of said front-end loading portion lumen has a uniform diameter.
Claim 8
Dependent Claim
17 words
The front-end loading delivery device according to claim 1 wherein said front-end portion main body is transparent.
Claim 9
Dependent Claim
44 words
The front-end loading delivery and retrieval device according to claim 1 wherein said valve includes a compressible gland having a tapered outer portion constructed and arranged to closely fit in a non-compressed state within a proximal end of said tapered portion of said lumen.
Claim 10
Dependent Claim
25 words
The front-end loading delivery and retrieval device according to claim 8 wherein said compressible gland further includes a cylindrical portion proximally of said tapered portion.
Claim 11
Dependent Claim
46 words
The front-end loading delivery and retrieval device according to claim 1 wherein said valve includes a cap threadably mounted to said proximal end of said main body and having a lumen extending therethrough and a compressible gland having a lumen in alignment with said cap lumen.
Claim 12
Dependent Claim
40 words
The front-end loading delivery and retrieval device according to claim 10 wherein one of said cap and said gland has an annular groove and the other of said cap and said gland has an annular projection fitted within said groove.
Claim 13
Dependent Claim
17 words
The front-end loading delivery and retrieval device according to claim 10 wherein said cap is internally threaded.
Claim 14
Dependent Claim
24 words
The front-end loading delivery and retrieval device according to claim 12 wherein said cap includes a locking step projection distally of said internal threads.
Claim 15
Dependent Claim
40 words
The front-end loading delivery and retrieval device according to claim 10 wherein a perimeter of said cap lumen and said gland lumen in a non-compressed state are smaller than a perimeter of said collapsible prosthetic occluder in a collapsed state.
Claim 16
Dependent Claim
24 words
The front-end loading delivery and retrieval device according to claim 1 wherein said tapered portion of said front-end loading portion lumen is conically shaped.
Claim 17
Dependent Claim
20 words
The front-end loading delivery and retrieval device according to claim 1 wherein said front-end loading portion distal end is rigid.
Claim 18
Dependent Claim
28 words
The front-end loading delivery and retrieval device according to claim 1 wherein said portion of said control assembly flexible distal end includes a tip of said elongated shaft.
Claim 19
Dependent Claim
31 words
The front-end loading delivery and retrieval device according to claim 17 wherein said flexible distal end is formed of a plastic material and said tip is made of a metallic material.
Claim 20
Dependent Claim
18 words
The front-end loading delivery and retrieval device according to claim 18 wherein said tip is a metal sleeve.
Claim 21
Dependent Claim
54 words
The front-end loading delivery and retrieval device according to claim 19 wherein said locking member includes an enlarged spherical portion and said locking wire distal end and said metal sleeve has an inner diameter greater than the diameter of said enlarged spherical portion but less than twice the diameter of said enlarged spherical portion.
Claim 22
Dependent Claim
42 words
The front-end loading delivery and retrieval device according to claim 1 wherein an inner perimeter of a portion of said control assembly flexible distal end is adapted to lockingly hold said locking member and said locking member of the collapsible prosthetic occluder.
Claim 23
Dependent Claim
35 words
The front-end loading delivery and retrieval device according to claim 1 wherein said portion of said flexible distal end of said elongated shaft is less flexible than an adjacent portion of said flexible distal end.
Claim 24
Dependent Claim
24 words
The front-end loading delivery and retrieval device according to claim 1 wherein said locking members include an enlarged spherical portion of said distal end.
Claim 25
Dependent Claim
18 words
The front-end loading delivery and retrieval device according to claim 1 wherein said locking members are bulbous shaped.
Claim 26
Dependent Claim
61 words
The front-end loading delivery and retrieval device according to claim 1 wherein said control assembly comprises a handle connected to said proximal end of said elongated shaft and including a moveable member connected to said proximal end of said locking wire for reciprocally advancing and retracting said locking member relative to said portion of said flexible distal end of said shaft.
Claim 27
Dependent Claim
34 words
The front-end loading delivery and retrieval device according to claim 25 wherein said handle includes telescoping distal and proximal portions and a stop for limiting the displacement of said telescoping distal and proximal portions.
Claim 28
Dependent Claim
47 words
The front-end loading delivery and retrieval device according to claim 26 wherein said stop includes a groove extending through the surface of one of said telescoping distal and proximal portions and a projection extending into said groove from said other of said telescoping distal and proximal portions.
Claim 29
Dependent Claim
30 words
The front-end loading delivery and retrieval device according to claim 25 wherein said handle further includes means for releasably locking said telescoping distal and proximal portions relative to one another.
Claim 30
Dependent Claim
34 words
The front-end loading delivery and retrieval device according to claim 1 wherein said control assembly flexible distal end is bendable to conform to a shape of a body lumen adjacent to a defect site.
Claim 31
Dependent Claim
44 words
The front-end loading delivery and retrieval device according to claim 1, wherein a positioning wire is extendable through and beyond said introducer sheath lumen, having a distal tip connected to an article to be retrieved having a configuration larger than said introducer sheath lumen.
Claim 32
Dependent Claim
33 words
The front-end loading delivery and retrieval device according to claim 30 wherein said distal end of said removeably mounted retrieval sheath is positioned proximally of said flexible distal end of said introducer sheath.
Claim 33
Dependent Claim
89 words
The front-end loading delivery and retrieval device according to claim 30 wherein said removeably mounted retrieval sheath is moveable from a first position wherein said less flexible distal end of said removeably mounted retrieval sheath is proximal of said flexible distal end of said introducer sheath and said distal tip of said positioning wire to a second position wherein said less flexible distal end of said removeably mounted retrieval sheath is distal of said flexible distal end of said introducer sheath and said distal tip of said positioning wire.
Claim 34
Dependent Claim
31 words
The front-end loading delivery and retrieval device according to claim 30 further comprising a valve for sealing said proximal end of said lumen of said introducer sheath about said positioning wire.
Claim 35
Dependent Claim
38 words
The front-end loading delivery and retrieval device according to claim 30 further comprising a flange fixed to a proximal end of said removeably mounted retrieval sheath and having a lumen therethrough adapted to slidably receive said introducer sheath.
Claim 36
Dependent Claim
22 words
The front-end loading delivery and retrieval device according to claim 34 wherein said flange is tapered inwardly towards a distal tip thereof.
Claim 37
Dependent Claim
17 words
The front-end loading delivery and retrieval device according to claim 35 wherein said tapering flange is cone-shaped.
Claim 38
Dependent Claim
29 words
The front-end loading delivery and retrieval device according to claim 34 wherein said flange is releasably connected to a projection supported by a proximal end of said introducer sheath.
Claim 39
Dependent Claim
22 words
The front-end loading delivery and retrieval device according to claim 37 wherein said projection is tapered inwardly towards a distal tip thereof.
Claim 40
Dependent Claim
29 words
The front-end loading delivery and retrieval device according to claim 38 wherein said flange includes a proximal end adapted to receive said tapered projection in a releasable tight-fitting relationship.
Claim 41
Dependent Claim
24 words
The front-end loading delivery and retrieval device according to claim 39 wherein said proximal end of said flange is more flexible than said projection.
Claim 42
Dependent Claim
289 words
A percutaneous transluminal front-end loading delivery assembly, for delivery of a collapsible prosthetic occluder, and retrieval sheath assembly comprising: a front-end loading portion comprising a main body having a distal end, a proximal end and a lumen extending therethrough, a portion of said lumen being tapered inwardly toward a smaller diameter distal portion; an infusion port extending through said main body and in direct communication with said distal portion of said lumen, and a valve for sealing said lumen proximally of said small diameter distal portion; an introducer sheath having a flexible distal end, a proximal end and a lumen extending therethrough, said distal end of said front-end loading portion being removeably mountable to a hub at a proximal end of said introducer sheath; a retrieval sheath removeably mounted about said introducer sheath and having a lumen extending therethrough adapted to slidably receive said introducer sheath, a distal end of said retrieval sheath being less flexible than said flexible distal end of said introducer sheath; and a control assembly moveable through said lumen of said front-end loading portion and said lumen of said introducer sheath; said control assembly comprising; an elongated shaft having a proximal end, a flexible distal end and a lumen extending therethrough; a locking wire extending through said lumen of said elongated shaft having a proximal end and a locking member at a distal end which is extendable beyond said flexible distal end of said elongated shaft; a portion of said flexible distal end of said elongated shaft being adapted to lockingly hold said locking member and a locking member of the collapsible prosthetic occluder and a valve for sealing said proximal end of said introducer lumen about said distal end of said front-end loading portion.
Claim 43
Dependent Claim
289 words
A percutaneous transluminal front-end loading delivery assembly, for delivery of a collapsible prosthetic occluder, and retrieval sheath assembly comprising: a front-end loading portion comprising a main body having a distal end, a proximal end and a lumen extending therethrough, a portion of said lumen being tapered inwardly toward a smaller diameter distal portion; an infusion port extending through said main body and in direct communication with said distal portion of said lumen, and a valve for sealing said lumen proximally of said small diameter distal portion; an introducer sheath having a flexible distal end, a proximal end and a lumen extending therethrough, said distal end of said front-end loading portion being removeably mountable to a hub at a proximal end of said introducer sheath; a retrieval sheath removeably mounted about said introducer sheath and having a lumen extending therethrough adapted to slidably receive said introducer sheath, a distal end of said retrieval sheath being less flexible than said flexible distal end of said introducer sheath; and a control assembly moveable through said lumen of said front-end loading portion and said lumen of said introducer sheath; said control assembly comprising; an elongated shaft having a proximal end, a flexible distal end and a lumen extending therethrough; a locking wire extending through said lumen of said elongated shaft having a proximal end and a locking member at a distal end which is extendable beyond said flexible distal end of said elongated shaft; a portion of said flexible distal end of said elongated shaft being adapted to lockingly hold said locking member and a locking member of the collapsible prosthetic occluder and a valve for sealing said proximal end of said introducer lumen about said distal end of said front-end loading portion.
Claim 44
Dependent Claim
45 words
The percutaneous transluminal front-end loading delivery and retrieval assembly according to claim 41 wherein said valve for sealing said introducer sheath lumen includes a cap threadably mounted to said introducer sheath, a compressible gland and a washer disposed between said cap and said compressible gland.
Claim 45
Dependent Claim
22 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41, wherein said elongated shaft further comprises a hypodermic tube.
Claim 46
Dependent Claim
23 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 43 wherein said hypodermic tube is encapsulated in a non-thrombogenic jacket.
Claim 47
Dependent Claim
38 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said front-end loading portion distal end is constructed and arranged for insertion into a hub at a proximal end of an introducer sheath lumen.
Claim 48
Dependent Claim
38 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said infusion port opens into said front-end loading portion lumen distal portion immediately adjacent said inwardly tapered portion of said front-end loading portion lumen.
Claim 49
Dependent Claim
23 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said front-end loading portion lumen has a uniform diameter.
Claim 50
Dependent Claim
22 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said front-end loading portion main body is transparent.
Claim 51
Dependent Claim
46 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said valve includes a compressible gland having a tapered outer portion constructed and arranged to closely fit in a non-compressed state within a proximal end of said tapered portion of said lumen.
Claim 52
Dependent Claim
27 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 49 wherein said compressible gland further includes a cylindrical portion proximally of said tapered portion.
Claim 53
Dependent Claim
48 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said valve includes a cap threadably mounted to said proximal end of said main body and having a lumen extending therethrough and a compressible gland having a lumen in alignment with said cap lumen.
Claim 54
Dependent Claim
42 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 51 wherein one of said cap and said gland has an annular groove and the other of said cap and said gland has an annular projection fitted within said groove.
Claim 55
Dependent Claim
19 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 51 wherein said cap is internally threaded.
Claim 56
Dependent Claim
26 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 53 wherein said cap includes a locking step projection distally of said internal threads.
Claim 57
Dependent Claim
42 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 51 wherein a perimeter of said cap lumen and said gland lumen in a non-compressed state are smaller than a perimeter of said collapsible prosthetic occluder in a collapsed state.
Claim 58
Dependent Claim
26 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said tapered portion of said front-end loading portion lumen is conically shaped.
Claim 59
Dependent Claim
22 words
The percutaneous transluminal front-end loading delivery and retrieval system recited in claim 41 wherein said front-end loading portion distal end is rigid.
Claim 60
Dependent Claim
30 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said portion of said control assembly flexible distal end includes a tip of said elongated shaft.
Claim 61
Dependent Claim
44 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein an inner perimeter of a portion of said control assembly flexible distal end is adapted to lockingly hold said locking member and said locking member of the collapsible prosthetic occluder.
Claim 62
Dependent Claim
37 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said portion of said flexible distal end of said elongated shaft is less flexible than an adjacent portion of said flexible distal end.
Claim 63
Dependent Claim
33 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 58 wherein said flexible distal end is formed of a plastic material and said tip is made of a metallic material.
Claim 64
Dependent Claim
20 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 61 wherein said tip is a metal sleeve.
Claim 65
Dependent Claim
56 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 62 wherein said locking member includes an enlarged spherical portion of said locking wire distal end and said metal sleeve has an inner diameter greater than the diameter of said enlarged spherical portion but less than twice the diameter of said enlarged spherical portion.
Claim 66
Dependent Claim
26 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said locking members include an enlarged spherical portion of said distal end.
Claim 67
Dependent Claim
20 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said locking members are bulbous shaped.
Claim 68
Dependent Claim
63 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said control assembly comprises a handle connected to said proximal end of said elongated shaft and including a moveable member connected to said proximal end of said locking wire for reciprocally advancing and retracting said locking member relative to said portion of said flexible distal end of said shaft.
Claim 69
Dependent Claim
36 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 66 wherein said handle includes telescoping distal and proximal portions and a stop for limiting the displacement of said telescoping distal and proximal portions.
Claim 70
Dependent Claim
49 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 67 wherein said stop includes a groove extending through the surface of one of said telescoping distal and proximal portions and a projection extending into said groove from said other of said telescoping distal and proximal portions.
Claim 71
Dependent Claim
32 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 66 wherein said handle further includes means for releasably locking said telescoping distal and proximal portions relative to one another.
Claim 72
Dependent Claim
36 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein said control assembly flexible distal end is bendable to conform to a shape of a body lumen adjacent to a defect site.
Claim 73
Dependent Claim
46 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 41 wherein a positioning wire is extendable through and beyond said introducer sheath lumen, having a distal tip connected to an article to be retrieved having a configuration larger than said introducer sheath lumen.
Claim 74
Dependent Claim
35 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 71 wherein said distal end of said removeably mounted retrieval sheath is positioned proximally of said flexible distal end of said introducer sheath.
Claim 75
Dependent Claim
91 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 71 wherein said removeably mounted retrieval sheath is moveable from a first position wherein said less flexible distal end of said removeably mounted retrieval sheath is proximal of said flexible distal end of said introducer sheath and said distal tip of said positioning wire to a second position wherein said less flexible distal end of said removeably mounted retrieval sheath is distal of said flexible distal end of said introducer sheath and said distal tip of said positioning wire.
Claim 76
Dependent Claim
33 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 71 further comprising a valve for sealing said proximal end of said lumen of said introducer sheath about said positioning wire.
Claim 77
Dependent Claim
40 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 71 further comprising a flange fixed to a proximal end of said removeably mounted retrieval sheath and having a lumen therethrough adapted to slidably receive said introducer sheath.
Claim 78
Dependent Claim
24 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 75 wherein said flange is tapered inwardly towards a distal tip thereof.
Claim 79
Dependent Claim
19 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 76 wherein said tapering flange is cone-shaped.
Claim 80
Dependent Claim
31 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 75 wherein said flange is releasably connected to a projection supported by a proximal end of said introducer sheath.
Claim 81
Dependent Claim
24 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 78 wherein said projection is tapered inwardly towards a distal tip thereof.
Claim 82
Dependent Claim
31 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 79 wherein said flange includes a proximal end adapted to receive said tapered projection in a releasable tight-fitting relationship.
Claim 83
Dependent Claim
26 words
The percutaneous transluminal front-end loading delivery and retrieval system according to claim 80 wherein said proximal end of said flange is more flexible than said projection.
Claim 84
Dependent Claim
171 words
A percutaneous transluminal introducer and retrieval sheath assembly, comprising: an introducer sheath having a proximal end, a flexible distal end which is bendable to conform to a shape of a body lumen adjacent a defect site and a lumen extending therethrough; a retrieval sheath removeably mounted about said introducer sheath and having a lumen extending therethrough adapted to slidably receive said introducer sheath, a distal end of said retrieval sheath being less flexible than said flexible distal end of said introducer sheath; and a control assembly comprising: an elongated shaft having a proximal end, a flexible distal end and a lumen extending therethrough; a locking wire extending through said lumen of said elongated shaft having a proximal end and a locking member at a distal end which is extendable beyond said flexible distal end of said elongated shaft; said locking wire extending through and beyond said introducer sheath lumen, and having said distal locking member connected to an article to be retrieved having a configuration larger than said introducer sheath lumen.
Claim 85
Dependent Claim
171 words
A percutaneous transluminal introducer and retrieval sheath assembly, comprising: an introducer sheath having a proximal end, a flexible distal end which is bendable to conform to a shape of a body lumen adjacent a defect site and a lumen extending therethrough; a retrieval sheath removeably mounted about said introducer sheath and having a lumen extending therethrough adapted to slidably receive said introducer sheath, a distal end of said retrieval sheath being less flexible than said flexible distal end of said introducer sheath; and a control assembly comprising: an elongated shaft having a proximal end, a flexible distal end and a lumen extending therethrough; a locking wire extending through said lumen of said elongated shaft having a proximal end and a locking member at a distal end which is extendable beyond said flexible distal end of said elongated shaft; said locking wire extending through and beyond said introducer sheath lumen, and having said distal locking member connected to an article to be retrieved having a configuration larger than said introducer sheath lumen.
Claim 86
Dependent Claim
33 words
The percutaneous transluminal introducer and retrieval assembly according to claim 82 wherein said distal end of said removeably mounted retrieval sheath is positioned proximally of said flexible distal end of said introducer sheath.
Claim 87
Dependent Claim
91 words
The percutaneous transluminal introducer and retrieval assembly according to claim 82 wherein said removeably mounted retrieval sheath is moveable from a first position wherein said less flexible distal end of said removeably mounted retrieval sheath is proximal of said flexible distal end of said introducer sheath and said distal locking member of said locking wire to a second position wherein said less flexible distal end of said removeably mounted retrieval sheath is distal of said flexible distal end of said introducer sheath and said distal locking member of said locking wire.
Claim 88
Dependent Claim
31 words
The percutaneous transluminal introducer and retrieval assembly according to claim 82 further comprising a valve for sealing said proximal end of said lumen of said introducer sheath about said locking wire.
Claim 89
Dependent Claim
38 words
The percutaneous transluminal introducer and retrieval assembly according to claim 82 further comprising a flange fixed to a proximal end of said removeably mounted retrieval sheath and having a lumen therethrough adapted to slidably receive said introducer sheath.
Claim 90
Dependent Claim
22 words
The percutaneous transluminal introducer and retrieval assembly according to claim 86 wherein said flange is tapered inwardly towards a distal tip thereof.
Claim 91
Dependent Claim
17 words
The percutaneous transluminal introducer and retrieval assembly according to claim 87 wherein said tapering flange is cone-shaped.
Claim 92
Dependent Claim
29 words
The percutaneous transluminal introducer and retrieval assembly according to claim 86 wherein said flange is releasably connected to a projection supported by a proximal end of said introducer sheath.
Claim 93
Dependent Claim
22 words
The percutaneous transluminal introducer and retrieval assembly according to claim 89 wherein said projection is tapered inwardly towards a distal tip thereof.
Claim 94
Dependent Claim
29 words
The percutaneous transluminal introducer and retrieval assembly according to claim 90 wherein said flange includes a proximal end adapted to receive said tapered projection in a releasable tight-fitting relationship.
Claim 95
Dependent Claim
24 words
The percutaneous transluminal introducer and retrieval assembly according to claim 91 wherein said proximal end of said flange is more flexible than said projection.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-07-21 | 2001-01-20 | 2001-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-21 | 2005-01-20 | 2005-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-21 | 2009-01-20 | 2009-07-22 | $7700.00 | Window Closed / Lapsed |