US Patent No: 4,560,375

Number of patents in Portfolio can not be more than 2000

Flow control valve

1 Status Updates

Stats

ATTORNEY / AGENT: (SPONSORED)
 

Importance

Loading Importance Indicators... loading....

Abstract

A surgically implantable flow control valve is provided for use in shunt systems for controlling the release of entrapped body fluids. The valve includes a relatively rigid, unitized molded plastic base separating an inlet chamber from an outlet chamber and including one or more apertures passing from the inlet chamber to the outlet chamber, and a resilient membrane which is molded of a material different from the material of the plastic base and which is secured to the base in a manner covering the apertures through the base on the outlet chamber side of the base. Fluid flow occluders on the base facilitate both proximal and distal flushing, and radiopaque indicators and markers permit a surgeon to ascertain specific information about the device and the functioning of the shunt system which would otherwise be unavailable without additional surgery.

Loading the Abstract Image... loading....

First Claim

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
MEDTRONIC, INC.MINNEAPOLIS, MN4903

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bryant, Marga M Goleta, CA 3 120
East, Gary P Santa Barbara, CA 16 531
Heindl, Alfons Goleta, CA 10 354
Schulte, Rudolf R Santa Barbara, CA 12 540

Cited Art

Patent Info (Count) # Cites Year
 
BECTON, DICKINSON AND COMPANY (1)
4,475,899 Shunt valve and method of use 11 1982
 
DENSO CORPORATION (1)
2005/0189,513 Bearing support device 2005
 
FLEET CAPITAL CORPORATION (1)
4,364,395 Low profile shunt system 29 1981

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
MEDTRONIC, INC. (16)
4,636,194 Burr-hole flow control valve 33 1985
4,681,560 Subcutaneous infusion reservoir and pump system 43 1986
4,761,158 Subcutaneous infusion reservoir and pump system 8 1987
4,816,016 Subcutaneous infusion reservoir and pump system 41 1988
4,867,740 Multiple-membrane flow control valve and implantable shunt system 22 1988
4,861,331 Implantable shunt system and method of assembly 14 1988
4,995,856 Ventriculostomy reservoir 18 1989
5,152,753 Medication infusion device with dose recharge restriction 42 1990
5,154,693 Flow control device having selectable alternative fluid pathways 32 1990
5,176,627 Implantable fluid flow control device having two-piece base, and assembly process 32 1990
5,167,615 Flow control device having selectable alternative fluid pathways 43 1991
5,085,644 Sterilizable medication infusion device with dose recharge restriction 48 1991
5,387,188 Pulsatile flow-accommodating fluid shunt 24 1993
5,662,600 Burr-hole flow control device 29 1995
5,637,083 Implantable adjustable fluid flow control valve 72 1996
5,800,376 Burr-hole flow control device 15 1997
 
BAXTER INTERNATIONAL INC. (3)
4,898,583 Implantable patient-activated fluid delivery device and outlet valve therefor 16 1988
4,898,584 Implantable patient-activated fluid delivery device 25 1988
4,898,585 Implantable patient-activated fluid delivery device with bolus injection port 41 1988
 
C.R. BARD, INC. (3)
D676955 Implantable access port 0 2010
8,382,723 Access port identification systems and methods 0 2011
8,382,724 Systems and methods for radiographically identifying an access port 0 2011
 
INTEGRA LIFESCIENCES CORPORATION (3)
6,689,085 Method and apparatus for treating adult-onset dementia of the Alzheimer's type 23 2000
6,875,192 Devices and methods for removing cerebrospinal fluids from a patient's CSF space 10 2003
7,025,742 Internally powered CSF pump systems and methods 26 2003
 
ZEVEX, INC. (3)
6,979,311 Apparatus and method for preventing free flow in an infusion line 15 2001
7,976,513 Apparatus and method for selectively controlling flow in an infusion line 1 2004
7,815,612 Apparatus and method for preventing free flow in an infusion line 0 2005
 
DEPUY SPINE, INC. (2)
7,744,555 Implant having a photocatalytic unit 9 2004
8,267,883 Photocatalytic implant having a sensor 0 2010
 
MEDTRONIC MINIMED, INC. (2)
5,433,710 Medication infusion pump with fluoropolymer valve seat 90 1994
7,813,780 Biosensors and methods for making and using them 0 2005
 
SEALED AIR CORPORATION (2)
7,997,454 Metering dispensing system with improved valving to prevent accidental dispensing of liquid therefrom 1 2007
8,292,120 Hanging liquid dispenser 0 2008
 
ANITEAL LABORATORIES, LLC (1)
8,211,051 Electroactive polymer actuated cerebrospinal fluid shunt 0 2007
 
BOSTON SCIENTIFIC SCIMED, INC. (1)
7,670,332 Anti-reflux drainage devices and methods 1 2005
 
CODMAN & SHURTLEFF, INC. (1)
7,118,549 Shunt system including a flow control device for controlling the flow of cerebrospinal fluid out of a brain ventricle 3 2003
 
CS FLUIDS INC. (1)
6,264,625 Method and apparatus for treating adult-onset dementia of the Alzheimer's type 31 1997
 
CSFLUIDS, INC. (1)
5,980,480 Method and apparatus for treating adult-onset dementia of the alzheimer's type 39 1996
 
FLEET CAPITAL CORPORATION (1)
4,904,236 Fluid flow control valve 32 1988
 
INTEGRA LIFE SCIENCES CORPORATION (1)
7,189,221 Methods for the treatment of a normal pressure hydrocephalus 1 2003
 
MEDICAL ENGINEERING CORPORATION (1)
4,832,054 Septum 44 1986
 
MINIMED INC. (1)
6,443,942 Medication device with protein stabilizing surface coating 55 2001
 
NIPPON ZEON CO., LTD. (1)
5,413,599 Medical valve apparatus 74 1993
 
NISSHO CORPORATION (1)
5,304,153 Apparatus and system for the self-dosing of a liquid medicine 8 1992
 
OCCULOGIX, INC. (1)
7,207,965 Shunt for the treatment of glaucoma 20 2004
 
PETER M. ADAMS, DOUG P. ADAMS, AND JOHN SULLIVAN, COLLECTIVELY AS THE STOCKHOLDER REPRESENTATIVE COMMITTEE (1)
7,282,046 Glaucoma treatment method 2 2005
 
PRIME MEDICAL PRODUCTS, INC. (1)
5,232,448 Patient-controlled analgesia device 17 1991
 
SHERWOOD SERVICES AG (1)
5,304,114 Shunt valve system 11 1991
 
VIR ENGINEERING, GOLETA, CA. A CA. CORP. (1)
4,781,674 Fluid flow control valve 22 1987
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (12)
4,710,177 Subcutaneous ventricular injection apparatus and method 14 1986
4,979,937 Method and apparatus involving intercostal and lumbar perfusion 12 1989
5,042,974 Shunt valve 8 1989
5,178,186 Axial two-way valve-stopcock combination 5 1991
5,346,464 Method and apparatus for reducing intraocular pressure 93 1993
5,584,314 Self-cleaning inlet head for a fluid 14 1995
5,728,061 Device and method for treating hydrocephalus 7 1996
5,681,275 Ophthalmological device with adaptable multiple distribution plates 45 1996
5,785,674 Device and method for treating glaucoma 50 1996
6,059,745 Thrombectomy device and associated method 27 1997
6,193,682 Low profile neonatal hydrocephalus device and methods 5 1998
D682416 Implantable access port 0 2010