US5800540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for endoscopic grafting
Assignee: Maquet Cardiovascular LLC
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Filing: 1996-10-28
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Granted: 1998-09-01
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Expires: 2016-10-28
Abstract
Abstract Method and apparatus for reconstructing target tissue by grafting uses a stabilizing balloon cannula having an endoscope for visualizing the placement of the graft during the procedure. The method and apparatus advances a sheathed graft to the target tissue, releases the graft at the target site, occludes the target tissue, deploys a graft stabilizing catheter, dissects a cavity outside the target tissue site, maintains the dissection site, and then secures the graft to the target tissue. Alternatively, the method and apparatus creates a cavity extending to the target tissue using an everting balloon cannula with an endoscope, maintains the dissection site, introduces the graft to the target site via the dissection site, and then secures the graft to the target tissue.
Inventors
- 👤 Albert K. Chin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:30
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/95; A61F2/954; A61F2/958; A61B; A61B17/00; A61B17/02; A61B17/0281; A61F2002/065; Y; Y10; Y10S; Y10S623/00; Y10S623/902; Y10S623/903
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
116 words
A method for reconstruction of target tissue, using a sheathed graft encased in a casing and a stabilizing catheter having a plurality of selectively deployable extensions at one end thereof, the method comprising the steps of: introducing the sheathed graft through an introduction site to position the sheathed graft at a proximal part of the target tissue; releasing the graft from the casing; deploying the extensions of the stabilizing catheter at a proximal part of the graft to press the graft adjacent the target tissue to stabilize the graft at the target tissue; securing the graft to the target tissue; and removing the extensions of the stabilizing catheter from the graft secured to the target tissue.
Claim 2
Independent Claim
116 words
A method for reconstruction of target tissue, using a sheathed graft encased in a casing and a stabilizing catheter having a plurality of selectively deployable extensions at one end thereof, the method comprising the steps of: introducing the sheathed graft through an introduction site to position the sheathed graft at a proximal part of the target tissue; releasing the graft from the casing; deploying the extensions of the stabilizing catheter at a proximal part of the graft to press the graft adjacent the target tissue to stabilize the graft at the target tissue; securing the graft to the target tissue; and removing the extensions of the stabilizing catheter from the graft secured to the target tissue.
Claim 3
Dependent Claim
49 words
The method of claim 1, wherein the target tissue comprises aortic tissue, and the method further comprises: inserting a balloon occlusion catheter, having a selectively inflatable balloon, through the graft; and then selectively inflating the balloon to occlude the aorta prior to deploying the extensions of the stabilizing catheter.
Claim 4
Dependent Claim
24 words
The method of claim 2, wherein positioning the sheathed graft comprises advancing the graft into position at the aortic tissue via one femoral artery.
Claim 5
Dependent Claim
27 words
The method of claim 3, further comprising, after positioning the graft, pulling a limb of the graft down iliac arteries and femoral arteries opposite the introduction site.
Claim 6
Dependent Claim
44 words
The method of claim 4, wherein the graft further comprises a loop element attached thereto, the method further comprising the step of, prior to pulling the limb of the graft, introducing a guidewire through the loop into the femoral arteries and the iliac arteries.
Claim 7
Dependent Claim
20 words
The method of claim 1, wherein the step of securing the graft comprises suturing the graft to the target tissue.
Claim 8
Dependent Claim
65 words
The method according to claim 1 in which the sheathed graft includes an inelastic perforated casing and a balloon therein for selective expansion within the casing in response to pressurization of the balloon, and the step of releasing the graft from the casing includes selectively pressurizing the balloon within the casing to rupture the casing substantially along perforations to release the graft from the casing.
Claim 9
Independent Claim
175 words
A method for reconstruction of aortic tissue, using a sheathed graft encased in an inelastic casing with a loop element attached thereto, and a stabilizing catheter having a plurality of selectively deployable extensions at one end thereof, the method comprising the steps of: introducing the sheathed graft through an introduction site to position the sheathed graft at a proximal part of the aortic tissue by advancing the graft into position at the aortic tissue via one femoral artery: releasing the graft from the perforated casing; introducing a guidewire through the loop element into the femoral arteries and the iliac arteries; pulling a limb of the graft down iliac arteries and femoral arteries opposite the introduction site; inserting a balloon occlusion catheter, having a selectively inflatable balloon, through the graft; selectively inflating the balloon to occlude the aorta; deploying the extensions of the stabilizing catheter at a proximal part of the graft to press the graft adjacent the aortic tissue to stabilize the graft at the aortic tissue; and securing the graft to the aortic tissue.
Claim 10
Independent Claim
175 words
A method for reconstruction of aortic tissue, using a sheathed graft encased in an inelastic casing with a loop element attached thereto, and a stabilizing catheter having a plurality of selectively deployable extensions at one end thereof, the method comprising the steps of: introducing the sheathed graft through an introduction site to position the sheathed graft at a proximal part of the aortic tissue by advancing the graft into position at the aortic tissue via one femoral artery: releasing the graft from the perforated casing; introducing a guidewire through the loop element into the femoral arteries and the iliac arteries; pulling a limb of the graft down iliac arteries and femoral arteries opposite the introduction site; inserting a balloon occlusion catheter, having a selectively inflatable balloon, through the graft; selectively inflating the balloon to occlude the aorta; deploying the extensions of the stabilizing catheter at a proximal part of the graft to press the graft adjacent the aortic tissue to stabilize the graft at the aortic tissue; and securing the graft to the aortic tissue.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-31 | 2002-03-02 | 2002-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-31 | 2006-03-02 | 2006-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-31 | 2010-03-02 | 2010-09-01 | $7700.00 | Window Closed / Lapsed |