Patent EP0367516A1 successfully refreshed from Google Patents.
EP0367516A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Device and method for closing and sealing an artery after removing a catheter
Assignee: CR Bard Inc
•
Filing: 1989-10-27
•
Granted: —
•
Expires: 2009-10-27
Abstract
Abstract A device and method for closing and sealing a puncture at a puncture site in an artery located beneath the skin after a catheter is removed from the puncture is disclosed. The dvice comprises a tube (36) with an inflatable balloon (38) at its distal end and means (44) for inflating the balloon so that it applies pressure directly to the artery at the puncture site. The device also includes means (50) for applying laser energy (52) directly to the artery at the puncture site while pressure is applied thereto by the balloon (38). Laser energy is carried to the balloon (38) via an optical fibre (50) and is directed through the wall of the balloon to the puncture site.
Inventors
- 👤 Edward L. Sinofsky
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 15:25
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B17/00; A61B17/0057; A61B17/22; A61B2017/22051; A61B2017/22057; A61B2017/22059; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
84 words
A closure device for sealing a puncture at a puncture site in an artery located beneath the skin, after a medical device is removed from the puncture characterised by means (38) for applying pressure directly to the artery at the puncture site, said pressure being sufficient to substantially close the puncture; and means (50) for applying laser energy directly to the artery at the puncture site while pressure is applied, said laser energy being sufficient to thermally weld the artery at the puncture site.
Claim 2
Dependent Claim
84 words
A closure device for sealing a puncture at a puncture site in an artery located beneath the skin, after a medical device is removed from the puncture characterised by means (38) for applying pressure directly to the artery at the puncture site, said pressure being sufficient to substantially close the puncture; and means (50) for applying laser energy directly to the artery at the puncture site while pressure is applied, said laser energy being sufficient to thermally weld the artery at the puncture site.
Claim 3
Dependent Claim
51 words
The device of claim 1 characterised in that, the means for applying pressure to the artery comprises an inflatable balloon (38) located at the distal end of a tube (36) connected to means (44) for inflating the balloon so that the balloon and the tube apply pressure to the puncture site.
Claim 4
Independent Claim
23 words
The device of claims 1 or 2 characterised in that, laser energy is applied in a wavelength range of 1.4 to 2.5 micrometers.
Claim 5
Independent Claim
29 words
The device of any preceding claim characterised in that, the laser energy is directed through the tube (36) through an optical fiber (50) that terminates in the balloon (38).
Claim 6
Independent Claim
17 words
The device of any preceding claim characterised in that, the transparent balloon (38) is made of polyethyleneterephthalate.
Claim 7
Independent Claim
27 words
The device of any preceding claim characterised in that, the tube (36) is sufficiently rigid to support the pressure applied to the puncture site by the balloon.
Claim 8
Independent Claim
82 words
A method for closing and sealing a puncture at a puncture site in an artery located beneath the skin, after a medical device is removed from the puncture, characterised by the steps of: applying pressure directly to the artery at the puncture site, said pressure being sufficient to substantially close the puncture; and applying laser energy directly to the artery at the puncture site while pressure is applied, said laser energy being sufficient to thermally weld the artery at the puncture site.
Claim 9
Independent Claim
82 words
A method for closing and sealing a puncture at a puncture site in an artery located beneath the skin, after a medical device is removed from the puncture, characterised by the steps of: applying pressure directly to the artery at the puncture site, said pressure being sufficient to substantially close the puncture; and applying laser energy directly to the artery at the puncture site while pressure is applied, said laser energy being sufficient to thermally weld the artery at the puncture site.
Claim 10
Dependent Claim
54 words
A method as defined in Claim 7 characterised in that, the step of applying pressure includes the steps of advancing a tube having an inflatable balloon at its distal end through overlying tissue to the puncture site, and inflating the balloon so that the balloon and the tube apply pressure to the puncture site.
Claim 11
Dependent Claim
38 words
A method as defined in Claim 8 characterised in that, the step of advancing a tube to the puncture site includes the step of advancing the tube through an introducer that was used for introduction of a catheter.
Claim 12
Dependent Claim
36 words
A method as defined in Claim 8 characterised in that, the step of applying laser energy includes the step of directing laser energy through said tube and through said balloon to effect heating of said artery.
Claim 13
Dependent Claim
29 words
A method as defined in Claim 7 characterised in that, the step of applying laser energy includes applying laser energy in a wavelength range of 1.4 to 2.5 micrometers.
Claim 14
Dependent Claim
38 words
A method as defined in Claim 7 characterised in that, the step of applying laser energy includes applying laser energy having a penetration depth sufficient to thermally weld said puncture while avoiding coagulation of blood in said artery.
Claim 15
Dependent Claim
35 words
A method as defined in Claim 10 characterised in that, the step of directing laser energy through said tube includes the step of directing laser energy through an optical fiber that terminates in said balloon.
Claim 16
Dependent Claim
32 words
A method as defined in Claim 8, characterised in that, the step of applying pressure includes the step of providing a transparent PET balloon affixed to the distal end of said tube.
Claim 17
Dependent Claim
34 words
A method as defined in Claim 7 characterised in that, the step of applying laser energy includes applying laser energy having a penetration depth not substantially greater than the thickness of the artery wall.
Claim 18
Dependent Claim
27 words
A method as defined in Claim 8 characterised in that, said tube has sufficient rigidity to support the pressure applied to said puncture site by said balloon.
Claim 19
Independent Claim
110 words
A method for closing and sealing a puncture at a puncture site in an artery located beneath the skin, after a catheter is removed from the puncture, characterised by the steps of: advancing a tube having an inflatable balloon at its distal end through a catheter introducer to the puncture site; inflating the balloon so that the balloon and the tube apply pressure directly to the puncture site, said pressure being sufficient to substantially close the puncture; and directing laser energy through said tube and through said balloon to effect direct heating of the puncture site, said laser energy being sufficient to thermally weld the artery at the puncture site.
Claim 20
Independent Claim
110 words
A method for closing and sealing a puncture at a puncture site in an artery located beneath the skin, after a catheter is removed from the puncture, characterised by the steps of: advancing a tube having an inflatable balloon at its distal end through a catheter introducer to the puncture site; inflating the balloon so that the balloon and the tube apply pressure directly to the puncture site, said pressure being sufficient to substantially close the puncture; and directing laser energy through said tube and through said balloon to effect direct heating of the puncture site, said laser energy being sufficient to thermally weld the artery at the puncture site.
Claim 21
Independent Claim
139 words
An apparatus for closing and sealing a puncture at a puncture site in an artery located beneath the skin, after removal of a medical device from the puncture comprising: an elongate tube; an inflatable flexible balloon formed from a transparent material attached to the distal end of the tube with the distal end of the tube being exposed within the balloon; an optical fiber extending through the tube and toward the balloon to direct laser light through the balloon; a lumen extending through the tube to enable the balloon to be inflated whereby the balloon may be inflated to apply pressure to the puncture site; and the tube having sufficient rigidity and column strength to enable the tube to be urged, axially, toward the puncture site thereby to cause the inflated balloon to apply pressure to the puncture site.
Claim 22
Independent Claim
139 words
An apparatus for closing and sealing a puncture at a puncture site in an artery located beneath the skin, after removal of a medical device from the puncture comprising: an elongate tube; an inflatable flexible balloon formed from a transparent material attached to the distal end of the tube with the distal end of the tube being exposed within the balloon; an optical fiber extending through the tube and toward the balloon to direct laser light through the balloon; a lumen extending through the tube to enable the balloon to be inflated whereby the balloon may be inflated to apply pressure to the puncture site; and the tube having sufficient rigidity and column strength to enable the tube to be urged, axially, toward the puncture site thereby to cause the inflated balloon to apply pressure to the puncture site.
Claim 23
Dependent Claim
21 words
An apparatus as defined in claim 18 further comprising means for directing laser energy through the optical fiber and the balloon.
Claim 24
Dependent Claim
43 words
An apparatus as defined in claim 19 further comprising the means for providing laser energy having means for controlling the laser energy so that it has a penetration depth sufficient to thermally weld the puncture while avoiding coagulation of blood in the artery.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.