Patents by Inventor Kenneth G. Powell
Kenneth G. Powell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7052268Abstract: A device, preferably a micro-device, is molded from a plastic material by injection molding, compression molding or embossing. A microabrader can be molded having microneedles for abrading the stratum corneum of the skin to form an abraded site in the tissue for enhancing drug delivery. The micro-device is molded using a mold assembly having a silicon molding surface. The silicon molding surface can include a recess corresponding to the desired shape and length of the microneedles. The silicon molding surface enables micron and submicron size features to be molded from polymeric materials without the polymeric material adhering to the mold surface. Micro-devices having molded features having micron and submicron dimensions can be rapidly produced without the use of a release agent.Type: GrantFiled: July 24, 2003Date of Patent: May 30, 2006Assignee: Becton, Dickinson and CompanyInventors: Kenneth G. Powell, Larry A. Monahan, Burton H. Sage, Jr.
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Patent number: 7024836Abstract: Methods for filling and sealing containers having one or more flexible sides. Non-standard containers for holding fluid are releasably supported during the filling and sealing process. Both the interior and exterior of the filled container are subjected to an environment of reduced pressure to minimize the headspace and sealed.Type: GrantFiled: October 7, 2003Date of Patent: April 11, 2006Assignee: Becton, Dickinson and CompanyInventors: Kenneth G. Powell, Carl Sahi, Charles Shermer, John Polidoro, Chad C. Smutney
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Publication number: 20040222349Abstract: A device, preferably a micro-device, is molded from a plastic material by injection molding, compression molding or embossing. A microabrader can be molded having microneedles for abrading the stratum corneum of the skin to form an abraded site in the tissue for enhancing drug delivery. The micro-device is molded using a mold assembly having a silicon molding surface. The silicon molding surface can include a recess corresponding to the desired shape and length of the microneedles. The silicon molding surface enables micron and submicron size features to be molded from polymeric materials without the polymeric material adhering to the mold surface. Micro-devices having molded features having micron and submicron dimensions can be rapidly produced without the use of a release agent.Type: ApplicationFiled: July 24, 2003Publication date: November 11, 2004Inventors: Kenneth G. Powell, Larry A. Monahan, Burton H. Sage
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Publication number: 20040162518Abstract: A wearable, self-contained drug infusion device is disclosed that is capable of achieving the precise flow rate control needed for dose-critical drugs such as insulin. In preferred embodiments of the device, at least two flow channels are utilized in conjunction with a series of valves for providing a user with selectable, constant flow rate control. The device can be made with small dimensions so that it can be worn by the user with a minimum of discomfort and inconvenience. In addition, the simple mechanical nature of the device provides the user with close control over the flow rate, which is required for safe and effective delivery of insulin and other drugs. Also, the absence of electronic components allows the device to be manufactured inexpensively. The device is provided with a first channel that is long and narrow, functioning as a flow restrictor. The first channel is preferably provided in a serpentine pattern.Type: ApplicationFiled: February 13, 2004Publication date: August 19, 2004Inventors: Robert I. Connelly, Kenneth G. Powell
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Publication number: 20040139700Abstract: Methods for filling and sealing containers having one or more flexible sides. Non-standard containers for holding fluid are releasably supported during the filling and sealing process. Both the interior and exterior of the filled container are subjected to an environment of reduced pressure to minimize the headspace and sealed.Type: ApplicationFiled: October 7, 2003Publication date: July 22, 2004Applicant: Becton Dickinson and CompanyInventors: Kenneth G. Powell, Carl Sahi, Charles Shermer, John Polidoro, Chad C. Smutney
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Publication number: 20040138612Abstract: A system and method for a patch-like, self-contained substance infusion device which provides one or more substantially hidden patient needles which can be placed in fluid communication with a fluid reservoir subassembly that includes a rigid bladder portion used in conjunction with a non-distensible bladder film, such as a metallized film. Simple removal of an interlock allows a disk, or Belleville spring assembly to apply an essentially even and constant pressure to the contents of the fluid reservoir assembly, and allows the device to then be attached to a skin surface via an adhesive contact surface. A push button activation assembly is provided which can then be used to release and seat one or more spring-loaded patient needles into the skin surface, and establish a fluid communication path between the patient needles and the pressurized fluid reservoir contents thereby delivering an infusion into the skin.Type: ApplicationFiled: July 22, 2003Publication date: July 15, 2004Inventors: Charles D. Shermer, Kenneth G. Powell, Alexander G. Lastovich, P. Spencer Kinsey, Chad C. Smutney, John M. Polidoro, Ed Browka, Carl R. Sahi, James K. Fentress, David S. Chapin, Daniel Stipe, Jeff M. Moss, Melody M.H. Kuroda
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Patent number: 6702779Abstract: A wearable, self-contained drug infusion device is disclosed that is capable of achieving the precise flow rate control needed for dose-critical drugs such as insulin. In preferred embodiments of the device, at least two flow channels are utilized in conjunction with a series of valves for providing a user with selectable, constant flow rate control. The device can be made with small dimensions so that it can be worn by the user with a minimum of discomfort and inconvenience. In addition, the simple mechanical nature of the device provides the user with close control over the flow rate, which is required for safe and effective delivery of insulin and other drugs. Also, the absence of electronic components allows the device to be manufactured inexpensively. The device is provided with a first channel that is long and narrow, functioning as a flow restrictor. The first channel is preferably provided in a serpentine pattern.Type: GrantFiled: August 17, 2001Date of Patent: March 9, 2004Assignee: Becton, Dickinson and CompanyInventors: Robert I. Connelly, Kenneth G. Powell
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Publication number: 20030216684Abstract: A fluid delivery device for delivering a substance to a patient by way of infusion delivers the preparation at a rate of flow which varies in steps from a substantially constant higher rate, to a stepped-down substantially constant lower rate or rates. The delivery device includes one or more reservoirs, and one or more Belleville springs for applying generally constant pressures to the substance contained in the reservoirs. Each reservoir will have a different constant pressure applied in a mid-range of operation. The reservoirs can be interconnected to each other and to an infusion device in a number of arrangements, including various manifolds and flow restrictors, such that the rate of flow is controlled in steps in accordance with the pressures applied by the springs of the plurality of reservoirs.Type: ApplicationFiled: March 26, 2003Publication date: November 20, 2003Inventors: James K. Fentress, Kenneth G. Powell
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Patent number: 6589229Abstract: A wearable, self contained drug infusion device is disclosed that is capable of achieving the precise flow rate control needed for dose-critical drugs such as insulin. In preferred embodiments of the device, piezoelectrically-actuated valve or pump structures are used in combination with thermal flow sensors and closed-loop control circuits for providing the desired flow rate control. The device has a two-part construction in which the more expensive electronic components are housed in a reusable portion and the fluid delivery components are housed in a separable disposable portion. The invention may also utilize a wireless unit for controlling the operation of the drug infusion device.Type: GrantFiled: July 31, 2000Date of Patent: July 8, 2003Assignee: Becton, Dickinson and CompanyInventors: Robert I. Connelly, Charles D. Shermer, Kenneth G. Powell
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Patent number: 6589202Abstract: A device for delivering or withdrawing a substance from a patient includes a support member, a skin penetrating device and an advancing assembly for advancing the skin penetrating device to an operating position. The advancing assembly includes a supply spool for supporting a web having the skin penetrating devices attached thereon and a take up spool for receiving the web with the spent skin penetrating devices. The support has a bottom wall with at least one opening for exposing the skin penetrating device for penetrating the skin of a patient. In one embodiment the skin penetrating devices are micro needles having a length of about 50-2000 microns.Type: GrantFiled: June 29, 2000Date of Patent: July 8, 2003Assignee: Becton Dickinson and CompanyInventor: Kenneth G. Powell
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Publication number: 20020053756Abstract: A device, preferably a micro-device, is molded from a plastic material by injection molding, compression molding or embossing. A microabrader can be molded having microneedles for abrading the stratum corneum of the skin to form an abraded site in the tissue for enhancing drug delivery. The micro-device is molded using a mold assembly having a silicon molding surface. The silicon molding surface can include a recess corresponding to the desired shape and length of the microneedles. The silicon molding surface enables micron and submicron size features to be molded from polymeric materials without the polymeric material adhering to the mold surface. Micro-devices having molded features having micron and submicron dimensions can be rapidly produced without the use of a release agent.Type: ApplicationFiled: October 12, 2001Publication date: May 9, 2002Applicant: Becton Dickinson and CompanyInventors: Kenneth G. Powell, Larry A. Monahan, Burton H. Sage
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Publication number: 20020022798Abstract: A wearable, self-contained drug infusion device is disclosed that is capable of achieving the precise flow rate control needed for dose-critical drugs such as insulin. In preferred embodiments of the device, at least two flow channels are utilized in conjunction with a series of valves for providing a user with selectable, constant flow rate control. The device can be made with small dimensions so that it can be worn by the user with a minimum of discomfort and inconvenience. In addition, the simple mechanical nature of the device provides the user with close control over the flow rate, which is required for safe and effective delivery of insulin and other drugs. Also, the absence of electronic components allows the device to be manufactured inexpensively. The device is provided with a first channel that is long and narrow, functioning as a flow restrictor. The first channel is preferably provided in a serpentine pattern.Type: ApplicationFiled: August 17, 2001Publication date: February 21, 2002Inventors: Robert I. Connelly, Kenneth G. Powell
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Patent number: 6331266Abstract: A device, preferably a micro-device, is molded from a plastic material by injection molding, compression molding or embossing. A microabrader can be molded having microneedles for abrading the stratum corneum of the skin to form an abraded site in the tissue for enhancing drug delivery. The micro-device is molded using a mold assembly having a silicon molding surface. The silicon molding surface can include a recess corresponding to the desired shape and length of the microneedles. The silicon molding surface enables micron and submicron size features to be molded from polymeric materials without the polymeric material adhering to the mold surface. Micro-devices having molded features having micron and submicron dimensions can be rapidly produced without the use of a release agent.Type: GrantFiled: September 29, 1999Date of Patent: December 18, 2001Assignee: Becton Dickinson and CompanyInventors: Kenneth G. Powell, Larry A. Monahan, Burton H. Sage, Jr.
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Patent number: 5530062Abstract: Gels useful as low gloss additives for blends of addition polymers, such as ABS resins, with polycarbonates are prepared by a melt blending operation in which a polyepoxide such as 3,4-epoxycyclohexyl 3,4-epoxycyclohexanecarboxylate is blended with at least one addition polymer such as a styrene-acrylonitrile copolymer, and concurrently with at least one aromatic polycarbonate in at least two increments. The first increment comprises about 20-60% of total polycarbonate and the second increment is subsequently introduced.Type: GrantFiled: June 5, 1995Date of Patent: June 25, 1996Assignee: General Electric CompanyInventors: Greg R. Bradtke, Robert H. Wildi, Jack A. Hill, Kenneth G. Powell
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Patent number: 5043421Abstract: Polymers, such as polyphenylene ethers, are isolated from solution in an extruder by addition of at least one non-solvent. Optional steps include removal of volatiles through vents or ports on the extruder and employment of an auxiliary non-solvent. Additional operations, such as blending with further polymers, fractionation of low molecular weight molecules and functionalization by chemical reaction, may also be performed in the extruder.Type: GrantFiled: August 4, 1989Date of Patent: August 27, 1991Assignee: General Electric CompanyInventors: Joseph C. Golba, Jr., Montgomery Meigs, Kenneth G. Powell, Sterling B. Brown