Patents by Inventor Walter N. Ryan
Walter N. Ryan 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: 20170319220Abstract: A retrieval device is provided for retrieving stones, calculi, and other objects from a body. The device allows for a retrieval basket to be articulated and extended simultaneously. The device also allows for the basket to be articulated and retracted simultaneously.Type: ApplicationFiled: March 20, 2017Publication date: November 9, 2017Inventors: Anthony D. HAMMACK, Walter N. Ryan
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Patent number: 9597100Abstract: A retrieval device is provided for retrieving stones, calculi, and other objects from a body. The device allows for a retrieval basket to be articulated and extended simultaneously. The device also allows for the basket to be articulated and retracted simultaneously. The device comprises a body, an articulator movably connected to the body, a first wire and a second wire having distal ends, and a tool formed by the distal ends of the first wire and the second wire.Type: GrantFiled: October 31, 2013Date of Patent: March 21, 2017Assignee: Cook Medical Technologies LLCInventors: Anthony D. Hammack, Walter N. Ryan
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Publication number: 20150141908Abstract: In one aspect, the present invention provides an endoscopic apparatus including an endoscopic device having a fluid delivery port and a fluid extraction port, and a filter device. The fluid extraction port connects to the filter input port and the filter output port connects to the fluid delivery port forming a fluid circulation path from the fluid extraction port through the filter device to the fluid delivery port. The apparatus also includes a fluid pump positioned in the fluid circulation path. Another aspect provides a method of supplying an irrigation fluid during an endoscopic procedure. The method includes delivering the irrigation fluid to the distal end of the endoscopic device, aspirating the irrigation fluid from a region around the distal end, filtering the irrigation fluid and returning the filtered irrigation fluid to the distal end of the endoscopic device.Type: ApplicationFiled: October 7, 2014Publication date: May 21, 2015Inventor: Walter N. Ryan
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Patent number: 8758231Abstract: In at least one embodiment of the present invention, an access sheath for positioning in a patient's body is provided. The access sheath comprises an elongated member having a proximal portion extending to a distal portion and a plurality of lumens formed therethrough including a working lumen and a first additional lumen. The first additional lumen is configured to receive an optical system or an irrigation system. The proximal portion has a stiffening section that includes a first coil and one of a braiding and a second coil which are disposed about the working lumen in concentric relationship with each other. The distal portion has a tip and a first deflection section and a second deflection section. The first deflection section is proximal to the tip and distal to the second deflection section. The first deflection section is configured to be actuated to bend at a first angle to position the tip. The second deflection section is configured to bend at a second angle to reposition the tip.Type: GrantFiled: May 12, 2010Date of Patent: June 24, 2014Assignee: Cook Medical Technologies LLCInventors: Tyler J. Bunch, Walter N. Ryan
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Publication number: 20140058404Abstract: A retrieval device is provided for retrieving stones, calculi, and other objects from a body. The device allows for a retrieval basket to be articulated and extended simultaneously. The device also allows for the basket to be articulated and retracted simultaneously.Type: ApplicationFiled: October 31, 2013Publication date: February 27, 2014Applicant: COOK MEDICAL TECHNOLOGIES LLCInventors: Anthony D. Hammack, Walter N. Ryan
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Patent number: 8597303Abstract: A retrieval device is provided for retrieving stones, calculi, and other objects from a body. The device allows for a retrieval basket to be articulated and extended simultaneously. The device also allows for the basket to be articulated and retracted simultaneously. The device comprises a body, an articulator movably connected to the body, a first and a second wire having distal ends, and a tool disposed at the distal end of the first and second wire.Type: GrantFiled: November 1, 2006Date of Patent: December 3, 2013Assignee: Cook Medical Technologies LLCInventors: Anthony D. Hammack, Walter N. Ryan
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Publication number: 20120053415Abstract: In at least one embodiment of the present invention, an access sheath for positioning in a patient's body is provided. The access sheath comprises an elongated member having a proximal portion extending to a distal portion and a plurality of lumens formed therethrough including a working lumen and a first additional lumen. The first additional lumen is configured to receive an optical system or an irrigation system. The proximal portion has a stiffening section that includes a first coil and one of a braiding and a second coil which are disposed about the working lumen in concentric relationship with each other. The distal portion has a tip and a first deflection section and a second deflection section. The first deflection section is proximal to the tip and distal to the second deflection section. The first deflection section is configured to be actuated to bend at a first angle to position the tip. The second deflection section is configured to bend at a second angle to reposition the tip.Type: ApplicationFiled: May 12, 2010Publication date: March 1, 2012Inventors: Tyler J. Bunch, Walter N. Ryan
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Patent number: 7811256Abstract: A medical device is provided. The medical device includes a sheath with an extended distal end portion, a proximal end portion, and a lumen defined therethrough. A handle is fixedly connected to the proximal end portion of the sheath, the handle includes an operator that is translatable between a first position and a second position. A flow path is defined within the handle in fluid communication with the proximal end portion of the sheath, wherein the operator is configured to substantially block the flow path in a second position and allow flow therethrough in a first position. The flow path includes a portion that is configured to communicate with a remote source of suction. The handle additionally includes a second inlet portion configured to receive a tool therethrough and allow the tool to extend through the lumen of the sheath.Type: GrantFiled: December 18, 2008Date of Patent: October 12, 2010Assignees: Vance Products Inc., Sabin CorporationInventors: Jaime Landman, John H. Ward, Walter N. Ryan, Mahfuza Ahmed, Gregory A. Frankland, Scott K. Philhower
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Patent number: 7803130Abstract: A disposable access sheath having a deflectable tip is provided. The access sheath is very flexible and allows a physician or other medical professional to provide diagnostic or therapeutic services to a remote body cavity. The access sheath has a deflectable tip that is able to bend at least 90° or 180° or more. This flexibility allows the physician or medical professional to make a very tight turn to visualize or treat the body cavity being treated. The access sheath may include a visualization system, a working channel, an irrigation channel, or other desirable features. The access sheath may include an interface at the proximal end of the working channel for insertion of an instrument for diagnosis or treatment of a human or mammalian patient.Type: GrantFiled: January 4, 2007Date of Patent: September 28, 2010Assignees: Vance Products Inc., Sabin CorporationInventors: Walter N. Ryan, Tyler J. Bunch, Bruce J. DeMars, David A. Drewes, Jr., Gregory A. Frankland
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Patent number: 7766987Abstract: An apparatus and method used in a urological procedure. The apparatus includes a sheath capable of insertion into a passageway within a patient. A filter is provided that includes a mesh that retains any particulate matter that is entrained with the liquid and allows the liquid to pass therethrough. The filter may be removeably attached to receive flow from an outlet of the sheath.Type: GrantFiled: April 23, 2007Date of Patent: August 3, 2010Assignee: Vance Products IncorporatedInventors: Jaime Landman, Walter N. Ryan
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Patent number: 7766926Abstract: A sling for supporting a urethra in a patient has characteristics for resisting pull-out, roll-over and a combination of both pull-out and roll-over. To facilitate resistance to pull-out, sling material has protuberances or serrations to resist movement once placed in the patient by the surgeon. Improved resistance to roll-over or roll-up is achieved by providing relief on the sling in areas potentially subjected to roll-over forces by endopelvic fascia. The sling may be used on female or male patients, and may be used in conjunction with a wider support portion to support a bladder and a urethra, rather than a urethra alone. The sling may also be used to support other tissues within a patient.Type: GrantFiled: April 30, 2003Date of Patent: August 3, 2010Assignee: Vance Products IncorporatedInventors: Rodney W. Bosley, Jr., Umesh H. Patel, Marvin O. Andrews, LiKang Chin, Frank J. Fischer, Jr., Walter N. Ryan, Peter L. Rosenblatt, J. Stephen Jones
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Patent number: 7731722Abstract: A retrieval device for use in renal, biliary, vascular or other systems of a body includes a collapsible basket in a narrow sheath. A surgeon advances the device beyond an object to be removed from a body, such as a kidneystone, a gallstone, or a thrombus. The surgeon then retracts the sheath or advances the basket from the sheath. The basket deploys only to one side of the sheath. In some embodiments, the periphery of the basket has a flex point to enable the basket to easily collapse into the sheath. If the sheath is adjacent a body vessel, such as a blood vessel or a ureter, the sheath remains adjacent the wall, while the device deploys in such a manner as to seal against the walls of the vessel and block the flow of fragments, emboli, thrombi, or other undesirable objects.Type: GrantFiled: July 28, 2004Date of Patent: June 8, 2010Assignees: Vance Products Incorporated, Lithotech Medical, LimitedInventors: Shay Lavelle, Marvin O. Andrews, Frank J. Fischer, Jr., Walter N. Ryan, Valery Diamant, Stepan Khachin, Nadezda Yasko, Vladimir Khachin
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Patent number: 7621880Abstract: Double ended wire guides are manufactured so that either end, or both ends sequentially, may be inserted into a patient. The ends are different, so that the inventory requirements of wire guides are minimized. For example, a wire guide may have a straight end and an angled end, either end suitable for use on the patient. The wire guides may also differ in other characteristics, such as the stiffness or the diameters of the distal and proximal portions. The wire guide may also be stored in a package, the package including a fitting so that wetting solution may be injected into the package to wet the wire guide and prepare it for use.Type: GrantFiled: September 3, 2004Date of Patent: November 24, 2009Assignee: Vance Products IncorporatedInventors: Walter N. Ryan, Frank J. Fischer, Jr., Thomas L. Foster, Gary L. Butler
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Publication number: 20090187146Abstract: A medical device is provided. The medical device includes a sheath with an extended distal end portion, a proximal end portion, and a lumen defined therethrough. A handle is fixedly connected to the proximal end portion of the sheath, the handle includes an operator that is translatable between a first position and a second position. A flow path is defined within the handle in fluid communication with the proximal end portion of the sheath, wherein the operator is configured to substantially block the flow path in a second position and allow flow therethrough in a first position. The flow path includes a portion that is configured to communicate with a remote source of suction. The handle additionally includes a second inlet portion configured to receive a tool therethrough and allow the tool to extend through the lumen of the sheath.Type: ApplicationFiled: December 18, 2008Publication date: July 23, 2009Applicant: Vance Products Inc. D/B/A Cook Urological IncorporatedInventors: Jaime Landman, John H. Ward, Walter N. Ryan, Mahfuza Ahmed
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Publication number: 20080200839Abstract: A composite wire guide is formed from a more flexible distal wire guide and stiffer proximal wire guide. The flexible and stiff wire guides are joined by a connector that is tapered to provide a smooth transition between the distal and proximal portions. In other embodiments, wire guides may be joined by a joining ring, which may have a cross-section that is uniform, stepped, or tapered.Type: ApplicationFiled: February 12, 2008Publication date: August 21, 2008Applicant: Vance Products Inc., d/b/a Cook UrologicalInventors: Tyler J. Bunch, Walter N. Ryan, Scott E. Eells
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Publication number: 20040006353Abstract: A sling for supporting a urethra in a patient has characteristics for resisting pull-out, roll-over and a combination of both pull-out and roll-over. To facilitate resistance to pull-out, sling material has protuberances or serrations to resist movement once placed in the patient by the surgeon. Improved resistance to roll-over or roll-up is achieved by providing relief on the sling in areas potentially subjected to roll-over forces by endopelvic fascia. The sling may be used on female or male patients, and may be used in conjunction with a wider support portion to support a bladder and a urethra, rather than a urethra alone. The sling may also be used to support other tissues within a patient.Type: ApplicationFiled: April 30, 2003Publication date: January 8, 2004Inventors: Rodney W. Bosley, Umesh H. Patel, Marvin O. Andrews, LiKang Chin, Frank J. Fischer, Walter N. Ryan, Peter L. Rosenblatt, J. Stephen Jones