US5817100A — Stent device and stent supplying system

Claim 1

Independent Claim 54 words

A stent device comprising a stent sheathed on a coextensive length of a radially dilatable and contractible freestanding tubular cartridge, wherein said length comprises an elastomeric material having means constructed therewith for permitting radial expansion while opposing lengthening; and wherein said cartridge is radially dilated by a balloon forming catheter for releasing thereby stent.

Claim 2

Dependent Claim 54 words

A stent device comprising a stent sheathed on a coextensive length of a radially dilatable and contractible freestanding tubular cartridge, wherein said length comprises an elastomeric material having means constructed therewith for permitting radial expansion while opposing lengthening; and wherein said cartridge is radially dilated by a balloon forming catheter for releasing thereby stent.

Claim 3

Dependent Claim 21 words

The stent device as claimed in claim 1 characterized in that the tubular cartridge is formed of a radiation impermeable material.

Claim 4

Dependent Claim 18 words

The stent device as claimed in claim 2 characterized in that the tubular cartridge contains a barium salt.

Claim 5

Dependent Claim 49 words

The stent device as claimed in claim 1 characterized in that a sleeve is fitted on at least one end portion of the tubular cartridge and an edge portion of the sleeve is fitted on an end portion of the stent for holding the stent on said tubular cartridge.

Claim 6

Dependent Claim 40 words

The stent device as claimed in claim 4 characterized in that when the stent is radially dilated along with the tubular cartridge, said sleeve is axially contracted so that the edge portion of the stent is detached from the stent.

Claim 7

Dependent Claim 18 words

The stent device as claimed in claim 4 characterized in that said sleeve is formed of an elastomer.

Claim 8

Dependent Claim 19 words

The stent device as claimed in claim 4 characterized in that said sleeve is formed of a silicon resin.

Claim 9

Dependent Claim 24 words

The stent device as claimed in claim 4 further comprising securing means for securing the sleeve at a pre-set position on the tubular cartridge.

Claim 10

Dependent Claim 17 words

The stent device as claimed in claim 8 characterized in that said securing means comprises an adhesive.

Claim 11

Dependent Claim 29 words

The stent device as claimed in claim 4 characterized in that said sleeve has an axially dilatable and contractible area in which the sleeve is contacted with the stent.

Claim 12

Dependent Claim 25 words

The stent device as claimed in claim 4 characterized in that a lubricant is supplied to a space between the sleeve and the tubular cartridge.

Claim 13

Dependent Claim 20 words

The stent device as claimed in claim 4 characterized in that the sleeve is formed of a radiation impermeable material.

Claim 14

Dependent Claim 17 words

The stent device as claimed in claim 12 characterized in that the sleeve contains a barium salt.

Claim 15

Dependent Claim 26 words

The stent device as claimed in claim 1 characterized in that the stent has its both ends held by folded end portions of the tubular cartridge.

Claim 16

Dependent Claim 42 words

The stent device as claimed in claim 14 characterized in that, when the stent is radially dilated along with the tubular cartridge, the folded end portions of the tubular cartridge are axially contracted so that the folded end portions release the stent.

Claim 17

Dependent Claim 24 words

The stent device as claimed in any one of claims 1 to 15 wherein a lubricant or hydrophilic coating is applied to the stent.

Claim 18

Dependent Claim 24 words

The stent device as claimed in any one of claims 1 to 15 characterized in that the stent is formed of a biodegradable polymer.

Claim 19

Dependent Claim 27 words

The stent device as claimed in any one of claims 1 to 15 wherein the stent is formed of biodegradable polymer fibers knitted in a tubular shape.

Claim 20

Dependent Claim 77 words

A stent insertion system comprising; a stent sheathed on a coextensive length of a radially dilatable and contractible free-standing tubular cartridge, wherein said length comprises an elastomeric material having means constructed therewith for permitting radial expansion while opposing lengthening; and wherein said cartridge is dilated by a balloon forming catheter for releasing thereby said stent; and an insertion assistant tool for assisting the loading of the tubular cartridge on a balloon forming portion of a balloon catheter.

Claim 21

Dependent Claim 77 words

A stent insertion system comprising; a stent sheathed on a coextensive length of a radially dilatable and contractible free-standing tubular cartridge, wherein said length comprises an elastomeric material having means constructed therewith for permitting radial expansion while opposing lengthening; and wherein said cartridge is dilated by a balloon forming catheter for releasing thereby said stent; and an insertion assistant tool for assisting the loading of the tubular cartridge on a balloon forming portion of a balloon catheter.

Claim 22

Dependent Claim 20 words

The stent insertion system as claimed in claim 19 characterized in that the insertion assisting tool is a guide wire.

Claim 23

Dependent Claim 26 words

The stent insertion system as claimed in claim 19 characterized in that the insertion assisting tool is a differential-diameter member having different diameters at both ends.

Claim 24

Dependent Claim 100 words

A stent housing system comprising a sheath and a stent device accommodated therein, said stent device having a stent fitted on a coextensive length of a radially dilatable and contractible freestanding tubular cartridge, wherein said length comprises an elastomeric material having means constructed therewith for permitting radial expansion while opposing lengthening; and wherein said cartridge is dilated by a balloon forming catheter for releasing thereby said stent, said sheath having a weakening line formed along the axis thereof for facilitating splitting along its axis and an operating member for splitting the sheath along said weakening line into split sheath portions.

Claim 25

Dependent Claim 100 words

A stent housing system comprising a sheath and a stent device accommodated therein, said stent device having a stent fitted on a coextensive length of a radially dilatable and contractible freestanding tubular cartridge, wherein said length comprises an elastomeric material having means constructed therewith for permitting radial expansion while opposing lengthening; and wherein said cartridge is dilated by a balloon forming catheter for releasing thereby said stent, said sheath having a weakening line formed along the axis thereof for facilitating splitting along its axis and an operating member for splitting the sheath along said weakening line into split sheath portions.

Claim 26

Dependent Claim 47 words

The stent housing system as claimed in claim 22 characterized in that a sleeve is arranged on at least one end of the tubular cartridge and the sleeve has its edge portion fitted on an end of the stent for holding said stent by said tubular cartridge.

Claim 27

Dependent Claim 30 words

The stent housing system as claimed in claim 22 characterized in that said stent has both of its ends held by folded portions of both ends of the tubular cartridge.

Claim 28

Dependent Claim 25 words

The stent housing system as claimed in any one of claims 22 to 24 characterized in that the stent is formed of biodegradable polymer fibers.

Claim 29

Dependent Claim 30 words

The stent housing system as claimed in any one of claims 22 to 24 characterized in that the stent is formed of biodegradable polymer fibers knitted in a tubular shape.

Claim 30

Dependent Claim 25 words

The stent housing system as claimed in claim 22 characterized in that a guide wire is introduced into the tubular cartridge of the stent device.

Claim 31

Dependent Claim 106 words

A stent supplying system characterized in that a stent device comprising a stent sheathed on a coextensive length of a radially dilatable and contractible freestanding tubular cartridge, wherein said length comprises an elastomeric material having means constructed therwith for permitting radial expansion while opposing lengthening; and wherein said cartridge is dilated by and mounted on a balloon-forming portion of a balloon catheter for releasing said stent, and in that after the stent is radially dilated along with the tubular cartridge by dilating said balloon-forming portion, said balloon-forming portion and said tubular cartridge are radially contracted for allowing the stent to be detached from the balloon catheter.

Claim 32

Dependent Claim 106 words

A stent supplying system characterized in that a stent device comprising a stent sheathed on a coextensive length of a radially dilatable and contractible freestanding tubular cartridge, wherein said length comprises an elastomeric material having means constructed therwith for permitting radial expansion while opposing lengthening; and wherein said cartridge is dilated by and mounted on a balloon-forming portion of a balloon catheter for releasing said stent, and in that after the stent is radially dilated along with the tubular cartridge by dilating said balloon-forming portion, said balloon-forming portion and said tubular cartridge are radially contracted for allowing the stent to be detached from the balloon catheter.

Claim 33

Dependent Claim 75 words

The stent supplying system as claimed in claim 28 characterized in that a sleeve is arranged on at least one end of the tubular cartridge and the sleeve has its edge portion fitted on an end of the stent for holding said stent by said tubular cartridge, and in that, when the stent is radially dilated along with the tubular cartridge, the sleeve is axially contracted so that its edge is detached from the stent.

Claim 34

Dependent Claim 62 words

The stent supplying system as claimed in claim 28 characterized in that the stent has its both ends held by folded portions of both ends of the tubular cartridge, and in that, when the stent is radially dilated along with the tubular cartridge, the folded portion of the tubular cartridge are axially contracted so that its edge is detached from the stent.

Claim 35

Dependent Claim 52 words

The stent supplying system as claimed in claim 28 characterized in that the stent device is housed in a sheath having a weakening line formed along the axis thereof for facilitating splitting along the sleeve axis and an operating member for splitting the sheath along said weakening line into split sheath portions.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2001-10-05	2002-04-06	2002-10-06	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2005-10-05	2006-04-06	2006-10-06	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2009-10-05	2010-04-06	2010-10-06	$7700.00	Window Closed / Lapsed

Stent device and stent supplying system

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag