Patents by Inventor William H. Stutz, Jr.

Application number: 20140326755
Abstract: A micro particle flow facilitator, includes: (a) a bourdon tube having a flexible duct capable of expanding and contracting in response to pulsations of a pressurized fluid, the duct being hollow, closed-ended and having an inlet port; and (b) a fluid pulsator for providing the pulsations of a pressurized fluid to the inlet port of the bourdon tube, the pulsator being in fluid-tight communication with the inlet port of the bourdon tube and having a fluid inlet port for connection to a source of pressurized fluid.
Type: Application
Filed: January 16, 2014
Issued: November 6, 2014
Inventors: Keith D. Swan, Jawn P. Swan, William H. Stutz, JR.
Application number: 20140328636
Abstract: A portable air abrasion device has a dispensing chamber and a flow valve for controlling the flow rate from the dispensing chamber. The flow valve includes a fluid flow chamber for receiving granular materials exiting the dispensing chamber. The fluid flow chamber has a granular materials inlet port, a fluid flow inlet port for receiving the flow of a fluid to the fluid flow chamber and a fluidized granular material exit port for dispensing a fluidized mixture of the granular material away from the fluid flow chamber. The fluid flow chamber also has a flow regulator employing a lead screw to control the flow of fluidized granular material through the fluidized granular material exit port.
Type: Application
Filed: March 7, 2014
Issued: November 6, 2014
Inventors: William H. Stutz, JR., Jawn P. Swan, Keith D. Swan, E. Michael Swan, John J. Quintus
Patent number: 8613726
Abstract: An external infusion device that infuses a fluid into an individual's body includes a housing, a reservoir, a drive system, a power supply, electrical elements, and a tab. The reservoir contains the fluid, and the drive system forces the fluid from the reservoir. The electrical elements control the power to the drive system to regulate the rate that fluid is forced from the reservoir. The tab mates with the housing, and contains at least one electrical element. The tab is removable, and may be replaced with a different tab. The different tab may change the rate fluid is forced from the reservoir. A tab may be removed from one external infusion device and installed in a different external infusion device. The tab may be limited to use in a predetermined number of external infusion devices and may include a power supply.
Type: Grant
Filed: January 19, 2010
Issued: December 24, 2013
Assignee: Medtronic Minimed, Inc.
Inventors: James D. Causey, III, William H. Stutz, Jr., Clyde K. Nason, Sheldon B. Moberg, Jay Yonemoto, Richard E. Purvis, Cary Talbot
Patent number: 8574215
Abstract: Apparatuses and methods for pumping fluid are disclosed. An exemplary apparatus is a miniature pump that includes a shape memory wire that obtains a plastic condition below a transformation temperature and has a memorized shape such that the shape memory wire produces a work stroke by returning to the memorize shape at least at the transformation temperature. A spring biased against the shape memory wire is deflected by the work stroke to deform the shape memory wire from the memorized shape below the transformation temperature. A fluid pump is coupled to the shape memory wire and driven by the biased spring and shape memory wire to produce a fluid flow. The miniature pump can be incorporated into a self-contained infusion device in the form of a compact self-adhesive patch including a fluid reservoir, control electronics and power supply that is place directly at the infusion site of a user.
Type: Grant
Filed: March 21, 2007
Issued: November 5, 2013
Assignee: Medtronic MiniMed, Inc.
Inventors: Clyde K. Nason, William H. Stutz, Jr.
Patent number: 8475432
Abstract: An infusion medium delivery system, device and method for delivering an infusion medium to a patient-user, includes a needle inserter device and method for inserting a needle and/or cannula into a patient-user to convey the infusion medium to the patient-user. The needle inserter device and method operate to insert a needle and cannula into a patient-user's skin and automatically withdraw the needle from the patient-user, leaving the cannula in place and in fluid flow communication with a reservoir. The delivery device may include a base portion and a durable portion connectable to the base portion, and wherein the base portion can be separated from the durable portion and disposed of after one or more specified number of uses. The base portion supports the reservoir and the needle inserter device, while the durable portion supports a drive device for selectively driving the infusion medium out of the reservoir and into the needle and/or cannula.
Type: Grant
Filed: September 3, 2010
Issued: July 2, 2013
Assignee: Medtronic MiniMed, Inc.
Inventors: Sheldon B. Moberg, Paul F. Bente, IV, Bradley J. Enegren, Christopher G. Griffin, Ian B. Hanson, Julian D. Kavazov, R. Paul Mounce, William H. Stutz, Jr.
Patent number: 8202250
Abstract: A delivery device includes a durable housing portion and a separable disposable portion that selectively engage and disengage from each other. The disposable housing portion secures to the patient-user and may be disposed of after it has been in use for a prescribed period. Components that normally come into contact with a patient-user or with an infusion medium, including a pump device, are supported by the disposable housing portion for disposal after the prescribed use, while the durable housing portion supports other components such as electronics for controlling delivery of the infusion medium from the reservoir and a drive device and drive linkage.
Type: Grant
Filed: November 30, 2006
Issued: June 19, 2012
Assignee: Medtronic MiniMed, Inc.
Inventor: William H. Stutz, Jr.
Patent number: 8137314
Abstract: A delivery device includes a durable housing portion and a separable disposable portion that selectively engage and disengage from each other. The disposable housing portion secures to the patient-user and may be disposed of after it has been in use for a prescribed period. Components that normally come into contact with a patient-user or with infusion media are supported by the disposable housing portion for disposal after the prescribed use, while the durable housing portion supports other components such as electronics for controlling delivery of infusion media from the reservoir and a drive device and drive linkage.
Type: Grant
Filed: October 27, 2006
Issued: March 20, 2012
Assignee: Medtronic MiniMed, Inc.
Inventors: R. Paul Mounce, Paul F. Bente, IV, Ian B. Hanson, William H. Stutz, Jr.
Patent number: 7789857
Abstract: An infusion medium delivery system, device and method for delivering an infusion medium to a patient-user, includes a needle inserter device and method for inserting a needle and/or cannula into a patient-user to convey the infusion medium to the patient-user. The needle inserter device and method operate to insert a needle and cannula into a patient-user's skin and automatically withdraw the needle from the patient-user, leaving the cannula in place and in fluid flow communication with a reservoir. The delivery device may include a base portion and a durable portion connectable to the base portion, and wherein the base portion can be separated from the durable portion and disposed of after one or more specified number of uses. The base portion supports the reservoir and the needle inserter device, while the durable portion supports a drive device for selectively driving the infusion medium out of the reservoir and into the needle and/or cannula.
Type: Grant
Filed: December 26, 2006
Issued: September 7, 2010
Assignee: Medtronic Minimed, Inc.
Inventors: Sheldon B. Moberg, Paul F. Bente, IV, Bradley J. Enegren, Christopher G. Griffin, Ian B. Hanson, Julian D. Kavazov, R. Paul Mounce, William H. Stutz, Jr.
Application number: 20100160861
Abstract: An external infusion device that infuses a fluid into an individual's body includes a housing, a reservoir, a drive system, a power supply, electrical elements, and a tab. The reservoir contains the fluid, and the drive system forces the fluid from the reservoir. The electrical elements control the power to the drive system to regulate the rate that fluid is forced from the reservoir. The tab mates with the housing, and contains at least one electrical element. The tab is removable, and may be replaced with a different tab. The different tab may change the rate fluid is forced from the reservoir. A tab may be removed from one external infusion device and installed in a different external infusion device. The tab may be limited to use in a predetermined number of external infusion devices and may include a power supply.
Type: Application
Filed: January 19, 2010
Issued: June 24, 2010
Assignee: MEDTRONIC MINIMED, INC.
Inventors: James D. Causey, III, William H. Stutz, Jr., Clyde K. Nason, Sheldon B. Moberg, Jay Yonemoto, Richard E. Purvis, Cary Talbot
Patent number: 7390314
Abstract: An improved reservoir is provided for use in a medication infusion device for operating the reservoir to administer a fluid to a patient. The reservoir comprises a hollow barrel adapted to receive a supply of fluid for delivery through infusion tubing or the like to the patient, in combination with a reservoir plunger. The reservoir plunger is designed to engage a motor-driven lead screw of the medication infusion device. The reservoir plunger has an integral split nut connector formed on the end of the plunger, which is in co-axial alignment with the lead screw whereby the split nut connector can be engaged directly to the lead screw.
Type: Grant
Filed: March 5, 2003
Issued: June 24, 2008
Assignee: Medtronic MiniMed, Inc.
Inventors: William H. Stutz, Jr., Herman L. Renger, Cary D. Talbot
Patent number: 7226278
Abstract: Apparatuses and methods for pumping fluid are disclosed. An exemplary apparatus is a miniature pump that includes a shape memory wire that obtains a plastic condition below a transformation temperature and has a memorized shape such that the shape memory wire produces a work stroke by returning to the memorize shape at least at the transformation temperature. A spring biased against the shape memory wire is deflected by the work stroke to deform the shape memory wire from the memorized shape below the transformation temperature. A fluid pump is coupled to the shape memory wire and driven by the biased spring and shape memory wire to produce a fluid flow. The miniature pump can be incorporated into a self-contained infusion device in the form of a compact self-adhesive patch including a fluid reservoir, control electronics and power supply that is place directly at the infusion site of a user.
Type: Grant
Filed: September 19, 2005
Issued: June 5, 2007
Assignee: Medtronic MiniMed, Inc.
Inventors: Clyde K. Nason, William H. Stutz, Jr.
Patent number: 7052251
Abstract: Apparatuses and methods for pumping fluid are disclosed. An exemplary apparatus is a miniature pump that includes a shape memory wire that obtains a plastic condition below a transformation temperature and has a memorized shape such that the shape memory wire produces a work stroke by returning to the memorize shape at least at the transformation temperature. A spring biased against the shape memory wire is deflected by the work stroke to deform the shape memory wire from the memorized shape below the transformation temperature. A fluid pump is coupled to the shape memory wire and driven by the biased spring and shape memory wire to produce a fluid flow. The miniature pump can be incorporated into a self-contained infusion device in the form of a compact self-adhesive patch including a fluid reservoir, control electronics and power supply that is place directly at the infusion site of a user.
Type: Grant
Filed: April 22, 2002
Issued: May 30, 2006
Assignee: Medtronic MiniMed, Inc.
Inventors: Clyde K. Nason, William H. Stutz, Jr., Darren Y. Yap
Patent number: 6752787
Abstract: A reusable external infusion device infuses a fluid into an individual's body. The infusion device controls the rate that fluid flows from a reservoir inside a housing, through an external tube, and into the individual's body. Essentially, the infused fluid is insulin. However, many other fluids may be administered through infusion such as, HIV drugs, drugs to treat pulmonary hypertension, iron chelation drugs, pain medications, anti-cancer treatments, vitamins, hormones, and others.
Type: Grant
Filed: March 23, 2000
Issued: June 22, 2004
Assignee: Medtronic MiniMed, Inc.,
Inventors: James D. Causey, III, William H. Stutz, Jr., Clyde K. Nason, Sheldon B. Moberg, Jay Yonemoto
Patent number: 6375638
Abstract: A drive mechanism for a medication delivery device includes a force receiving member, a force applying member and a shape memory alloy (SMA) actuator. The force applying member is operatively coupled to the force receiving member to move the force receiving member to a different position relative to the force applying member. The shape memory alloy actuator is formed from a shape memory alloy material and is operatively coupled to the force applying member. The shape memory alloy actuator is heat activated to distort the shape memory actuator from a first shape to a second shape to activate the force applying member to act upon the force receiving member to move the force receiving member to a different position relative to the force applying member. Also, the shape memory alloy actuator is returned to the first shape from the second shape after the force receiving member is moved to a different position relative to the force applying member.
Type: Grant
Filed: February 12, 1999
Issued: April 23, 2002
Assignee: Medtronic MiniMed, Inc.
Inventors: Clyde Nason, William H. Stutz, Jr.
Patent number: 5951595
Abstract: A connector assembly mounted on an implantable cardiac stimulation device has an actuator mechanism for fixing and sealing electrical leads inserted into lead receptacles within the connector assembly without the use of setscrews. Fixing and sealing of the leads is accomplished by compressing resilient lead lock seals of O-ring shape, disposed in annular recesses, with lip portions of a plunger drawn toward the molded support by the actuator mechanism. In a first embodiment of the actuator mechanism, rotation of a cam actuator transversely journaled within the support, using a torque wrench or similar tool, moves a cam slide attached to the plunger through a fixed displacement between lock and unlock positions as an offset camming portion of the actuator engages the surfaces of a slot within the cam slide.
Type: Grant
Filed: May 6, 1997
Issued: September 14, 1999
Assignee: Pacesetteer, Inc.
Inventors: Sheldon B. Moberg, Buehl E. Truex, Alfred D. Acken, deceased, Clyde K. Nason, William H. Stutz, Jr., Edward Gene Rourke
Patent number: 5873899
Abstract: An implantable medical device, in the form of a cardiac defibrillator, has a support structure of molded thermoplastic foam surrounding the components of the device within a case to provide the components with shock and vibration resistance. The thermoplastic foam is produced by a process using dry nitrogen blowing, so as to be chemically inert. This prevents harmful outgassing of chemicals from the foam. The thermoplastic foam is a low density, crosslinked foam of polyethylene or polypropylene composition. The support structure includes an opposite pair of supports molded from the thermoplastic foam, so as to have facing portions configured to the irregular shape and size of the components. Each support is made by preheating an opposing pair of dies and a thermoplastic foam element, compressing the preheated foam element between the opposing dies, and heating for a predetermined time at a predetermined temperature, cooling the dies, and then removing the formed support from the dies.
Type: Grant
Filed: January 16, 1996
Issued: February 23, 1999
Assignee: Pacesetter Inc.
Inventors: William H. Stutz, Jr., Clyde K. Nason
Patent number: 5741313
Abstract: A cardiac stimulation device having a reduced volumetric configuration contains a pair of high-voltage cylindrical discharge capacitors positioned at rounded edges within a device container. The capacitors have electrical contact tabs at one end which are inserted directly through apertures formed within an associated electronic module. The capacitor tabs are connected directly to the electronic module eliminating the need for secondary connectors or point to point wiring, thus reducing the number of connections. Direct connection of the capacitors to the electronic module allows for optimal positioning of the module within the container. Specifically, the generally planar module is oriented perpendicular to planar cover surfaces of the container. Irregularly shaped components attached to the surface of the module advantageously extend away from the surface into remaining voids within the container.
Type: Grant
Filed: September 9, 1996
Issued: April 21, 1998
Assignee: Pacesetter, Inc.
Inventors: Dion Frank Davis, Buehl E. Truex, Clyde K. Nason, William H. Stutz, Jr.
Patent number: 5413595
Abstract: A lead connector seal and locking assembly for an implantable pulse generator such as a pacemaker is detailed. The pulse generator includes a header portion and an enclosed metallic housing or can, wherein the header portion includes an orifice for receiving a lead connector. The lead connector is secured within the orifice by the use of a defeasible active seal and locking mechanism, which includes a sphincter seal and a beveled washer which is forced against the sphincter seal upon insertion of an actuator. The actuator may be a forked clip inserted into a slot formed within the epoxy header in such a manner that prongs of the forked clip force the beveled cam to be displaced axially within the orifice of the header portion, compressing the sphincter seal.
Type: Grant
Filed: October 15, 1993
Issued: May 9, 1995
Assignee: Pacesetter, Inc.
Inventor: William H. Stutz, Jr.
Patent number: 5082453
Abstract: A multi-contact connector system for electrically and mechanically connecting a lead for the delivery of electrical energy at a body site to an implantable source of the electrical energy includes a plug connector element carried at a proximal end of the lead which is received in a socket connector element carried on the source of electrical energy. The plug connector element is a radially expandable sleeve with a number of exteriorly exposed contacts respectively connected to conductors contained within the lead. Corresponding contacts are mounted in the interior of the socket connector element. The plug connector sleeve fits over a flexible expansion element contained in the socket connector element. The expansion element is operated by a toggle switch after the connector elements are engaged so as to radially expand.
Type: Grant
Filed: May 16, 1991
Issued: January 21, 1992
Assignee: Siemens-Pacesetter, Inc.
Inventor: William H. Stutz, Jr.
Patent number: 5076270
Abstract: A multi-part molded pacemaker connector that meets the precise requirements imposed by the VS-1 standard, yet does not require complex or expensive machining of individual parts. Advantageously, the pacemaker connector is made from a plurality of individually molded parts, with each individual part being designed to readily allow the insertion of seals and other connector components, prior to joining the parts together. The connector includes three molded pieces: a body tip, a body ring, and an entrance connector which are adapted to be joined during assembly. The connector further includes a garter spring, and preferably, two annular sealing rings. A tip connector block is insert-molded into the body tip. A conductive tube, which forms the ring connector, is insert-molded within the entrance connector. The body ring provides appropriate spacing between the tip connector block and the ring connector.
Type: Grant
Filed: January 30, 1991
Issued: December 31, 1991
Assignee: Siemens-Pacesetter, Inc.
Inventor: William H. Stutz, Jr.
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