Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7431709 | Glaucoma implant device A surgical implant device for treating glaucoma includes an elongate duct structure formed from a material comprising polyisobutylene and a glassy segment. The material of the elongate duct structure preferably has a general block structure with a central elastomeri... | 10/07/2008 |
| 7354391 | Implantable radiotherapy/brachytherapy radiation detecting apparatus and methods An interstitial brachytherapy apparatus and method for delivering and monitoring radioactive emissions delivered to tissue surrounding a resected tissue cavity. The brachytherapy device including a catheter body member having a proximal end, a distal end, and an out... | 04/08/2008 |
| 7309330 | Implantable cerebral spinal fluid drainage device and method of draining cerebral spinal fluid The invention provides a drainage system that includes a ventricular catheter, a drainage catheter, and a positive displacement pump that can function to actively drain CSF from the ventricles of the brain of a patient. Methods of using a drainage system in accordan... | 12/18/2007 |
| 7282040 | Gravitational pressure regulating mechanism A gravitational pressure regulating mechanism for use with a valve is provided for control of pressure and diversion of bodily fluids. The mechanism includes a reservoir having first and second ends, the first end being open and the second end having a floor and an ... | 10/16/2007 |
| 7229432 | Injection devices When the injection device is applied to a patient's skin and a plunger is pressed, the entire syringe and a carrier move forwards in relation to a barrel such that ribs on the carrier snap past a rib on a shroud. The syringe is arrested by flanges coming up against ... | 06/12/2007 |
| 7210847 | Intraoral X-ray sensor An intraoral sensor for a dental X-ray apparatus includes a detection element for detecting the X-ray radiation. The element is disposed in an interior of a housing. To improve the possibilities for cleaning and sterilizing, the housing or parts thereof are of an ab... | 05/01/2007 |
| 7186233 | Dry eye treatment A dry-eye treatment method includes collecting fluid from the inside of the eye and transporting the collected fluid into the eyelid fornix, where it accumulates. At each blink, accumulated fluid from the fornix is spread across the surface of the eye. ... | 03/06/2007 |
| 7156821 | Shunt with enclosed pressure-relief valve A shunt for relief of intra-ocular pressure includes a pressure-relief valve and a jacket enclosing the pressure relief valve. When implanted on the sclera of an eye, the jacket protects the valve from interference by a capsule formed on the shunt. ... | 01/02/2007 |
| 7118549 | Shunt system including a flow control device for controlling the flow of cerebrospinal fluid out of a brain ventricle An anti-siphon device limits the flow of a fluid from a first region of a patient's body to a second region. The device includes a housing having a spherical inner surface with a predetermined inner diameter. The housing has an inlet port for receiving fluid from th... | 10/10/2006 |
| 6953444 | Inherent anti-siphon device An anti-siphon shunt device is provided that is insensitive to body postural changes. The shunt device has a housing having a chamber, an inlet port, and an outlet port. A valve mechanism disposed within the housing manages fluid movement into and out of the chamber... | 10/11/2005 |
| 6932787 | Shunt A shunt for draining cerebral spinal fluid from the brain is provided. In an embodiment, the shunt includes a master control unit that is located in the abdomen, which interconnects a ventricular catheter and a second catheter, typically located in the peritoneal ca... | 08/23/2005 |
| 6881198 | Glaucoma treatment device and method A device for treating glaucoma in an eye is described. The device includes a body defining a lumen and having first and second ends and external and lumenal surfaces, wherein the body has a length sufficient to provide fluid communication between the anterior... | 04/19/2005 |
| 6827863 | Flexible centrifuge bag and methods of use A flexible, disposable centrifuge bag for receiving and holding a fluid sample, comprising one or more tubes and upper and lower flexible sheets having doughnut shaped configurations. The upper and lower sheets are superimposed and completely sealed together at thei... | 12/07/2004 |
| 6666841 | Bifurcatable trabecular shunt for glaucoma treatment A trabecular shunt and methods for treating glaucoma are disclosed. The method comprises placing a trabecular shunt through diseased trabecular meshwork, between the anterior chamber and Schlemm's canal. The trabecular shunt includes a hollow, elongated t... | 12/23/2003 |
| 6595945 | Glaucoma treatment device and method A device for treating glaucoma in an eye is described. The device includes a body defining a lumen and having first and second ends and external and lumenal surfaces, wherein the body has a length sufficient to provide fluid communication between the anterior ... | 07/22/2003 |
| 6585677 | Shunt A shunt for draining cerebral spinal fluid from the brain is provided. In an embodiment, the shunt includes a master control unit that is located in the abdomen, which interconnects a ventricular catheter and a second catheter, typically located in the pe... | 07/01/2003 |
| 6544208 | Implantable shunt device A bioinert implantable shunt device useful for controlling internal pressure includes a valve apparatus, a device for attaching the valve apparatus and an inlet tube. The valve apparatus includes an inlet port, an outlet port, a flexible tube connected th... | 04/08/2003 |
| 6383160 | Variable anti-siphon valve apparatus and method Variable anti-siphon devices are disclosed for use in cerebrospinal fluid shunt systems. Such devices can include a housing with an internal chamber, an adjustable barrier separating the chamber into two cavities, and a diaphragm that seats itself against... | 05/07/2002 |
| 6050970 | Method and apparatus for inserting a glaucoma implant in an anterior and posterior segment of the eye A method of treating glaucoma in an eye utilizing an implant is disclosed. The implant comprises an elastomeric plate having first and second surfaces and an non-valved elastomeric drainage tube. The plate is positioned over a sclera of said eye beneath T... | 04/18/2000 |
| 5647843 | Anti-reflux ureteral stent Ureteral stents are tubes which are placed in the ureter between the bladder and kidney to maintain patency when otherwise due to stone burden, invasive tumor, scarring, or whenever the ureter has become obstructed in order to provide drainage of urine fr... | 07/15/1997 |
| 5634894 | Antisiphoning valve A valve for preventing excessive cerebrospinal fluid flow in ventriculoperitoneal shunt, known as "siphoning", which occurs when a patient rapidly moves from a recumbent to an upright position, is described. The valve includes at least one valve unit cont... | 06/03/1997 |
| 5462739 | Microdelivery device and method for enhanced drug administration to the eye A device for pinpoint application of micro-quantities of a pharmacologically suitable composition to the outer hard coat of the eye, comprises a micro-container with a fixation element. The micro-container comprises a bore whose aperture is adapted to con... | 10/31/1995 |
| 5397300 | Glaucoma implant An implant for use in the treatment of glaucoma is disclosed wherein the implant comprises an elastomeric plate having a non-valved elastomeric drainage tube attached thereto. The plate is elliptical in shape and curved so as to conform to the curvature o... | 03/14/1995 |
| 5387188 | Pulsatile flow-accommodating fluid shunt In a cerebrospinal fluid shunt including a flow control device forming a portion of a fluid conduit, a capacitive element is provided for reducing overdrainage of cerebrospinal fluid due to the pulsatile nature of cerebrospinal fluid flow. The capacitive ... | 02/07/1995 |
| 5192265 | Adjustable-resistance anti-siphon device An adjustable-resistance anti-siphon device for a cerebrospinal fluid shunt is provided. The device has a substantially rigid housing having an internal cavity which contains a first chamber and a second chamber, the first chamber having at least one flex... | 03/09/1993 |
| 5178604 | Glaucoma implant An implant for use in the treatment of glaucoma is disclosed wherein the implant comprises an elastomeric plate having a non-valved elastomeric drainage tube attached thereto. The plate is elliptical in shape and curved so as to conform to the curvature o... | 01/12/1993 |
| 5176625 | Stent for ureter A ureteral stent is nominally straight, but is provided with a coil adjacent one end to prevent migration. The coil portion is straightened upon insertion into the ureter on a guide wire, and is supposed to coil after insertion to prevent migration. An el... | 01/05/1993 |
| 4867741 | Physiological draining system with differential pressure and compensating valves A compensating valve and a drainage system for draining a body fluid from one body region to another body region. The system enables routine drainage at predetermined differential pressures, provides for pumping action, for flushing action to clear the sy... | 09/19/1989 |
| 4865588 | Magnetic bladder cycler and use method A bladder cycler is provided with a magnetic valve for hospital, nursing home, and home care use in automatic emptying of the bladder of a patient. Manual override also is provided with variable opening pressure.... | 09/12/1989 |
| 4795437 | Siphon control device A subcutaneously implantable siphon control device is provided for use in a physiological shunt system including a proximal catheter, a flow control valve and a distal catheter. The siphon control device limits fluid flow through the shunt system due to t... | 01/03/1989 |
| 4781675 | Infusion cannula The disclosure relates to an infusion cannula for infusing fluids into various cavities of the eye. The cannula comprises a tube having first and second ends and a check valve therebetween for allowing fluid flow only toward the first end. The first end o... | 11/01/1988 |
| 4729761 | Tissue-implantable, fluid-dissipating device A tissue-implantable fluid-dissipating device enabling fluid from a source to be delivered to and absorbed by tissue of the eye. In one embodiment the device includes a base plate having a radius of curvature approximately equal to that of the human eye a... | 03/08/1988 |
| 4729762 | Three stage implantable pressure relief valve with adjustable valve stem members An implantable valve for controlling the passage of cerebrospinal fluid (CSF) from a ventricle of the brain to a suitable drainage location in the body includes a movable diaphragm, one side of which is in the pressure communication with the drainage loca... | 03/08/1988 |
| 4673384 | Valve for the treatment of hydrocephalus A subcutaneous valve is provided for the treatment of hydrocephalus adapted to be inserted between a ventricular catheter and a distal catheter. The valve comprises a body enclosing a chamber having formed through its cylindrical wall an inlet and outlet ... | 06/16/1987 |
| 4621654 | Attitude and pressure responsive valve A valve assembly for relieving intracraneal pressure includes a valve housing adapted for implantation and having an inlet port for connection to a ventricular catheter and an outlet port for connection to a venus or peritoneal catheter. The valve housing... | 11/11/1986 |
| 4554918 | Ocular pressure relief device A prosthetic device for the relief of high intraocular pressures associated with glaucoma is shown. The device includes a limp reservoir adapted to be worn against or within the eye wall, a conduit leading from the reservoir to the anterior chamber of the... | 11/26/1985 |
| 4443214 | Valve for the treatment of hydrocephalus This valve adapted to be inserted between a ventricular catheter and a draining catheter comprises a body of flattened cylindrical shape enclosing a chamber having formed through its cylindrical wall an inlet passage for introducing the cephalorachidian f... | 04/17/1984 |
| 4364395 | Low profile shunt system A shunt system for implantation in the body which can be used for transferring cerebrospinal fluid is disclosed. The shunt system comprises a body having an upper and lower surface and a distal and proximal end. The body includes a central cavity opening ... | 12/21/1982 |
| 4020840 | Device for catheterizing the bladder Hitherto for relieving the bladder as a result of prostate conditions a catheter has of necessity been inserted under medical supervision and remains permanently in the urethra between medical consultations. At intervals of two weeks these catheters are r... | 05/03/1977 |
| 3999553 | Bio-medical pressure control device An improved cerebrospinal fluid anti-syphoning device for insertion into the human body to provide control and regulation of fluid being transported from the lateral ventricles to another portion of the body. The improved fluid anti-syphoning device inclu... | 12/28/1976 |
