US Patent No: 5,545,132

Number of patents in Portfolio can not be more than 2000

Helically grooved balloon for dilatation catheter and method of using

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ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

A dilatation balloon having at least one helical groove disposed in at least a portion of the dilating surface of the dilatation balloon is mounted on the distal end of a catheter shaft. Multiple helical grooves may be provided in the dilatation balloon extending parallel to each other or opposite to each other in the dilating surface. Each helical groove has a pitch, width and depth. According to one aspect of the invention, the pitch, width and depth of the helical groove, as well as the number of grooves, are selected to allow perfusion of blood past the dilatation catheter when the dilatation balloon is inflated in a blood vessel. According to another aspect of the invention, the pitch, width, and depth of the helical groove, as well as the number of grooves, are selected so that the dilatation balloon conforms to a tortuous blood vessel and does not straighten the blood vessel during dilation. According to another aspect of the invention, the pitch, width, and depth of the helical groove, as well as the number of grooves, are selected to control the diametrical compliance of the dilatation balloon. The pitch, width, and depth of the helical groove may be selected to provide both conformance to the shape of tortuous blood vessels and diametrical compliance. The helical groove also permits the dilatation balloon to deflate without "winging", i.e., forming undesirable flat folds that extend outward from the rest of the catheter.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MEDTRONIC AVE, INC.SANTA ROSA, CA326

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fagan, John R Pepperell, MA 12 670
Kling, Jeffrey Tewksbury, MA 1 127

Cited Art

Patent Info (Count) # Cites Year
 
BOSTON SCIENTIFIC SCIMED, INC. (3)
5,306,246 Balloon for medical catheter 130 1992
5,348,538 Shrinking balloon catheter having nonlinear or hybrid compliance curve 123 1992
5,403,340 Shrinking balloon catheter having nonlinear compliance curve 63 1994
 
ARTERIA MEDICAL SCIENCE, LLC (1)
5,250,070 Less traumatic angioplasty balloon for arterial dilatation 200 1991
 
PLUNKETT, DIANNE M.F. (1)
5,295,959 Autoperfusion dilatation catheter having a bonded channel 94 1992
 
SURELAB SUPERIOR RESEARCH LABORATORIES, INC. (1)
4,950,232 Cerebrospinal fluid shunt system 121 1988
 
SYMMETRY MEDICAL USA, INC. (1)
5,295,995 Perfusion dilatation catheter 56 1992
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
5,308,356 Passive perfusion angioplasty catheter 129 1993

Patent Citation Ranking

Forward Cites

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