Patents by Inventor David A. Watson
David A. Watson 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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Publication number: 20230380842Abstract: A complex coil for intravascular treatment, a mandrel for constructing the complex coil, and the method for constructing the complex coil is disclosed. The coil generally comprises a primary wire formed to a primary spring and then formed to a secondary three dimensional shape, wherein the primary spring forms a secondary set of layers of successive loops. A fixed number of loops define a layer forming a locus of points enclosing a generally spherical surface and forming a repeatable pattern, the second successive layer of loops of the repeatable pattern being generally larger in diameter and spherical size than the previous layer. The locus of the points from the four or more loops define an enclosed spheroid adapted to fill or frame an embolism wherein the size and geometry of the successive loops can be manipulated by various means of the unique design of the mandrel.Type: ApplicationFiled: May 25, 2023Publication date: November 30, 2023Inventor: David A. Watson
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Publication number: 20190201324Abstract: An injectable drug delivery device includes a core containing one or more drugs and one or more polymers. The core may be surrounded by one or more polymer outer layers (referred to herein as “coatings,” “skins,” or “outer layers”). In certain embodiments, the device is formed by extruding or otherwise preforming a polymeric skin for a drug core. The drug core may be co-extruded with the skin, or inserted into the skin after the skin has been extruded, and possibly cured. In other embodiments, the drug core may be coated with one or more polymer coatings. These techniques may be usefully applied to fabricate devices having a wide array of drug formulations and skins that can be selected to control the release rate profile and various other properties of the drugs in the drug core in a form suitable for injection using standard or non-standard gauge needles.Type: ApplicationFiled: December 27, 2018Publication date: July 4, 2019Applicant: EyePoint Pharmaceuticals, Inc.Inventors: Kang-Jye CHOU, Hong GUO, Paul ASHTON, Robert W SHIMIZU, David A WATSON
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Patent number: 9750279Abstract: In an aspect, a process for removing a tail end of Brussels sprouts comprises separating a Brussels sprout from a stack and transferring it to a longitudinal transport track. On the track, the Brussels sprout is manipulated to position a longest dimension of the Brussels sprout perpendicular to a direction of travel of the transport track. Near an end of the track, a position and an orientation of each Brussels sprout is defined by photographic detection. Each Brussels sprout is removed from the transport track by a gripper. A position and an orientation of the gripper are defined using the detected position and orientation of the Brussels sprout to be removed. The gripper is re-oriented and moved along a knife to remove the tail end of the Brussels sprout. The Brussels sprout is removed from the gripper and collected.Type: GrantFiled: August 17, 2012Date of Patent: September 5, 2017Assignee: GROWERS EXPRESS, LLC.Inventors: Christopher Stephen Keenan, Dirk Jacobus Bac, Bastiaan Rinke Anthony Groeneweg, Ian McLachlan, David A. Watson
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Patent number: 9526879Abstract: An improved shunt valve for the control of hydrocephalus provides for physiological atmospherically-referenced siphon control that is not adversely affected by overlying tissue. The valve includes one or more porous outer anti-fouling membranes to protect the flow control membranes from external mechanical tissue pressure, while permitting free movement of the flow control moveable membranes and permitting positive inlet pressure to regulate flow through the improved fluid shunt valve of the invention. The porous membranes are configured to prevent tissue ingrowth into the membranes pores while allowing adequate fluid flow across so as not to inhibit movement of the movable membrane.Type: GrantFiled: June 12, 2015Date of Patent: December 27, 2016Inventor: David A. Watson
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Publication number: 20150273193Abstract: An improved shunt valve for the control of hydrocephalus provides for physiological atmospherically-referenced siphon control that is not adversely affected by overlying tissue. The valve includes one or more porous outer anti-fouling membranes to protect the flow control membranes from external mechanical tissue pressure, while permitting free movement of the flow control moveable membranes and permitting positive inlet pressure to regulate flow through the improved fluid shunt valve of the invention. The porous membranes are configured to prevent tissue ingrowth into the membranes pores while allowing adequate fluid flow across so as not to inhibit movement of the movable membrane.Type: ApplicationFiled: June 12, 2015Publication date: October 1, 2015Inventor: David A. Watson
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Patent number: 9056181Abstract: An improved shunt valve for the control of hydrocephalus provides for physiological atmospherically-referenced siphon control that is not adversely affected by overlying tissue. The valve includes one or more porous outer anti-fouling membranes to protect the flow control membranes from external mechanical tissue pressure, while permitting free movement of the flow control moveable membranes and permitting positive inlet pressure to regulate flow through the improved fluid shunt valve of the invention. The porous membranes are configured to prevent tissue ingrowth into the membranes pores while allowing adequate fluid flow across so as not to inhibit movement of the movable membrane.Type: GrantFiled: February 12, 2013Date of Patent: June 16, 2015Inventor: David A. Watson
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Patent number: 8871241Abstract: An injectable drug delivery device includes a core containing one or more drugs and one or more polymers. The core may be surrounded by one or more polymer outer layers (referred to herein as “coatings,” “skins,” or “outer layers”). In certain embodiments, the device is formed by extruding or otherwise preforming a polymeric skin for a drug core. The drug core may be co-extruded with the skin, or inserted into the skin after the skin has been extruded, and possibly cured. In other embodiments, the drug core may be coated with one or more polymer coatings. These techniques may be usefully applied to fabricate devices having a wide array of drug formulations and skins that can be selected to control the release rate profile and various other properties of the drugs in the drug core in a form suitable for injection using standard or non-standard gauge needles.Type: GrantFiled: November 13, 2003Date of Patent: October 28, 2014Assignee: pSivida US, Inc.Inventors: Kang-Jye Chou, Hong Guo, Paul Ashton, Robert W. Shimizu, David A. Watson
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Publication number: 20140082924Abstract: The intravascular stent is formed from a composite wire includes an inner core of radiopaque metal, a polymer layer coaxially disposed about the inner core, and an outer metal layer coaxially disposed about the polymer layer. The intermediary polymer layer acts as a barrier material between the inner core and the outer sheath, so that the inner core and outer sheath may be made of dissimilar metallic layers, and the intermediary polymer layer will prevent a galvanic reaction between the inner core and the peripheral metal layer. The intravascular stent has ends flared radially outwardly to prevent radially and longitudinally inward deformation of the ends of the stent when the stent is disposed in a desired location in a patient's vasculature.Type: ApplicationFiled: December 2, 2013Publication date: March 27, 2014Applicant: DEPUY SYNTHES PRODUCTS, LLCInventors: Andre S. Lundkvist, David A. Watson
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Publication number: 20140058500Abstract: The intravascular stent is formed from a composite wire includes an inner core of radiopaque metal, a polymer layer coaxially disposed about the inner core, and an outer metal layer coaxially disposed about the polymer layer. The intermediary polymer layer acts as a barrier material between the inner core and the outer sheath, so that the inner core and outer sheath may be made of dissimilar metallic layers, and the intermediary polymer layer will prevent a galvanic reaction between the inner core and the peripheral metal layer. The intravascular stent has ends flared radially outwardly to prevent radially and longitudinally inward deformation of the ends of the stent when the stent is disposed in a desired location in a patient's vasculature.Type: ApplicationFiled: October 31, 2013Publication date: February 27, 2014Applicant: DePuy Synthes Products, LLCInventors: Andre S. LUNDKVIST, David A. WATSON
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Patent number: 8661548Abstract: An administration system for use within a server system is provided. The server system having a server that provides host management functions and the server system being able to accept computer cards inserted therein. The administration system comprises a computing system that is inserted in the server system, the computing system having a controller that assumes control over the communications bus.Type: GrantFiled: March 6, 2010Date of Patent: February 25, 2014Assignee: Embotics CorporationInventors: John P. Shannon, Thane Brown, John McCarthy, David A. Watson, Anthony Richard Phillip White
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Patent number: 8623071Abstract: The intravascular stent is formed from a composite wire includes an inner core of radiopaque metal, a polymer layer coaxially disposed about the inner core, and an outer metal layer coaxially disposed about the polymer layer. The intermediary polymer layer acts as a barrier material between the inner core and the outer sheath, so that the inner core and outer sheath may be made of dissimilar metallic layers, and the intermediary polymer layer will prevent a galvanic reaction between the inner core and the peripheral metal layer. The intravascular stent has ends flared radially outwardly to prevent radially and longitudinally inward deformation of the ends of the stent when the stent is disposed in a desired location in a patient's vasculature.Type: GrantFiled: January 7, 2008Date of Patent: January 7, 2014Assignee: Depuy Synthes Products, LLCInventors: Andre S. Lundkvist, David A. Watson
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Patent number: 8597344Abstract: The intravascular stent is formed from a composite wire includes an inner core of radiopaque metal, a polymer layer coaxially disposed about the inner core, and an outer metal layer coaxially disposed about the polymer layer. The intermediary polymer layer acts as a barrier material between the inner core and the outer sheath, so that the inner core and outer sheath may be made of dissimilar metallic layers, and the intermediary polymer layer will prevent a galvanic reaction between the inner core and the peripheral metal layer. The intravascular stent has ends flared radially outwardly to prevent radially and longitudinally inward deformation of the ends of the stent when the stent is disposed in a desired location in a patient's vasculature.Type: GrantFiled: February 22, 2010Date of Patent: December 3, 2013Assignee: DePuy Synthes Products, LLCInventors: Andre S. Lundkvist, David A. Watson
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Publication number: 20130218065Abstract: An improved shunt valve for the control of hydrocephalus provides for physiological atmospherically-referenced siphon control that is not adversely affected by overlying tissue. The valve includes one or more porous outer anti-fouling membranes to protect the flow control membranes from external mechanical tissue pressure, while permitting free movement of the flow control moveable membranes and permitting positive inlet pressure to regulate flow through the improved fluid shunt valve of the invention. The porous membranes are configured to prevent tissue ingrowth into the membranes pores while allowing adequate fluid flow across so as not to inhibit movement of the movable membrane.Type: ApplicationFiled: February 12, 2013Publication date: August 22, 2013Inventor: DAVID A. WATSON
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Patent number: 8414524Abstract: The long nose manipulatable catheter includes a main lumen, a wire lumen with a push-pull wire therethrough, and a flexible joint region. The catheter section includes a control including a handle and a wire control member engaging the push-pull wire for manipulating the flexible joint region. The push-pull wire may be tapered, having a proximal portion of a first diameter and a smaller diameter distal portion. A coil may be placed around the smaller diameter to prevent buckling of the smaller diameter portion. A strapping coil may also disposed around the outside of the catheter, and an outer covering may be disposed around the strapping coil. An outer covering of a mesh may also be disposed around the distal tip of the catheter.Type: GrantFiled: December 19, 2006Date of Patent: April 9, 2013Assignee: Micrus Endovascular CorporationInventors: Marc-Alan Levine, Stephen Hebert, Thomas G. Breton, David A. Watson
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Publication number: 20130052311Abstract: In an aspect, a process for removing a tail end of Brussels sprouts comprises separating a Brussels sprout from a stack and transferring it to a longitudinal transport track. On the track, the Brussels sprout is manipulated to position a longest dimension of the Brussels sprout perpendicular to a direction of travel of the transport track. Near an end of the track, a position and an orientation of each Brussels sprout is defined by photographic detection. Each Brussels sprout is removed from the transport track by a gripper. A position and an orientation of the gripper are defined using the detected position and orientation of the Brussels sprout to be removed. The gripper is re-oriented and moved along a knife to remove the tail end of the Brussels sprout. The Brussels sprout is removed from the gripper and collected.Type: ApplicationFiled: August 17, 2012Publication date: February 28, 2013Applicant: Growers Express, Inc.Inventors: Christopher Stephen Keenan, Dirk Jacobus Bac, Bastiaan Rinke Anthony Groeneweg, Ian McLachlan, David A. Watson
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Patent number: 8376980Abstract: A surgically implantable delivery or drainage catheter assembly includes a porous fiber membrane that is permeable to the intended drainage or delivery fluid, yet has an outer surface morphology and porosity that prevents the ingrowth of tissue. The porous fiber membrane is created using a phase-inversion process which is controlled to select a desired porosity. A reinforcement member is also disposed within the porous fiber membrane.Type: GrantFiled: March 24, 2010Date of Patent: February 19, 2013Inventor: David A. Watson
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Publication number: 20110054511Abstract: A vasoocclusive microcoil for therapeutic treatment of a patient's vasculature includes a surface with a plurality of voids or pores therein that operates to accelerate a healing process in the patient's vasculature when the microcoil is introduced into the patient's vasculature.Type: ApplicationFiled: August 11, 2010Publication date: March 3, 2011Applicant: MICRUS ENDOVASCULAR CORPORATIONInventors: MICHAEL HENSON, ROBERT A. STERN, DAVID A. WATSON
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Publication number: 20100282394Abstract: A surgically implantable delivery or drainage catheter assembly includes a porous fiber membrane that is permeable to the intended drainage or delivery fluid, yet has an outer surface morphology and porosity that prevents the ingrowth of tissue. The porous fiber membrane is created using a phase-inversion process which is controlled to select a desired porosity. A reinforcement member is also disposed within the porous fiber membrane.Type: ApplicationFiled: July 21, 2010Publication date: November 11, 2010Inventor: David A. Watson
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Patent number: 7763142Abstract: A surgically implantable delivery or drainage catheter assembly includes a porous fiber membrane that is permeable to the intended drainage or delivery fluid, yet has an outer surface morphology and porosity that prevents the ingrowth of tissue. The porous fiber membrane is created using a phase-inversion process which is controlled to select a desired porosity. A reinforcement member is also disposed within the porous fiber membrane.Type: GrantFiled: December 15, 2004Date of Patent: July 27, 2010Inventor: David A. Watson
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Publication number: 20100186094Abstract: An administration system for use within a server system is provided. The server system having a server that provides host management functions and the server system being able to accept computer cards inserted therein. The administration system comprises a computing system that is inserted in the server system, the computing system having a controller that assumes control over the communications bus.Type: ApplicationFiled: March 6, 2010Publication date: July 22, 2010Inventors: John P. SHANNON, Thane Brown, John McCarthy, David A. Watson, Anthony Richard Phillip White