Patents by Inventor Raymond Dunn
Raymond Dunn 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: 11911174Abstract: Systems, devices, and methods of the present application relate to the diagnostic measurement of condition for pressure ulcers. Preferred embodiments utilize pressure measurements at body locations to determine a diagnostic pressure ulcer value. A pressure sensor device generates patient pressure data that is processed by a data processor which utilizes a diagnostic function to determine the diagnostic value that indicates whether corrective action is needed to prevent pressure ulcer formation. One or more sensor devices can be attached to a patient to measure to transmit data for further processing.Type: GrantFiled: December 6, 2018Date of Patent: February 27, 2024Assignees: University of Massachusetts, Worcester Polytechnic InstituteInventors: Raymond Dunn, John McNeill, Yitzhak Mendelson
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Patent number: 11607259Abstract: A surgical elevator device that can be used in the reduction of bone fractures, particularly facial bone fractures, and even more particularly zygomatic arch fractures. The elevator device enables accurate measurement of the depth of insertion of the device into tissue space and provides tactile control of fracture location and reduction. In one embodiment, the elevator device comprises a groove on an elevator element for receiving a bone structure. The groove can be formed by a pair of parallel ridges. A projection extending from the elevator provides a pivot point for applying a controlled force to the bone to reduce the fracture. A preferred embodiment further comprises a method of reducing a bone fracture, such as a zygomatic arch fracture.Type: GrantFiled: March 5, 2019Date of Patent: March 21, 2023Assignee: University of MassachusettsInventor: Raymond Dunn
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Patent number: 11471586Abstract: Systems, devices, and methods of the present application can accelerate and reduce medical complications associated with healing of non-planar wounds such as amputation wounds. The devices and methods utilize a collapsing structure and negative pressure to cause the shaped wound to preferentially close. The structure can accommodate movement over curved tissue surfaces, which can utilize scales or interleaved elements to provide efficient wound closure along arcuate paths. This structure can enable gradual closure from the deepest portion of the wound to the shallowest portion.Type: GrantFiled: December 13, 2019Date of Patent: October 18, 2022Assignee: University of MassachusettsInventor: Raymond Dunn
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Publication number: 20220096085Abstract: The present invention relates to a negative pressure wound closure system and methods for using such a system. Preferred embodiments of the invention facilitate closure of the wound by preferentially contracting to provide for movement of the tissue. Preferred embodiments can utilize tissue grasping elements to apply a wound closing force to the tissue.Type: ApplicationFiled: October 19, 2021Publication date: March 31, 2022Inventor: Raymond Dunn
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Patent number: 11266373Abstract: The present invention relates to devices and methods for measuring vascular deficiency using Doppler ultrasound detection. Embodiments can be used to monitor the condition of surgical tissue flaps or other conditions in which obstruction in the vascular system can impact patient health. The systems can include a Doppler ultrasound probe, a color probe, a temperature probe, and/or other suitable probes to measure blood volume and perfusion status of a tissue region. The systems and methods can be used to monitor flaps after flap transplant surgeries. The systems and methods can automatedly assess tissue condition and alert the patient or medical staff if the condition has fallen below a threshold indicating occlusion of a blood vessel. One or more additional sensors can be integrated into a probe to measure vascular conditions and a metric can be computed based on sensed data.Type: GrantFiled: April 14, 2017Date of Patent: March 8, 2022Assignees: University of Massachusetts, Worcester Polytechnic InstituteInventors: Dennis Giaya, Rebecca Stolarczyk, Yitzhak Mendelson, Arriyan Samandar Dowlatshahi, Raymond Dunn
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Publication number: 20210361225Abstract: Systems, devices, and methods of the present application relate to the diagnostic measurement of condition for pressure ulcers. Preferred embodiments utilize pressure measurements at body locations to determine a diagnostic pressure ulcer value. A pressure sensor device generates patient pressure data that is processed by a data processor which utilizes a diagnostic function to determine the diagnostic value that indicates whether corrective action is needed to prevent pressure ulcer formation. One or more sensor devices can be attached to a patient to measure to transmit data for further processing.Type: ApplicationFiled: June 7, 2021Publication date: November 25, 2021Inventors: Raymond Dunn, John McNeill, Yitzhak Mendelson, Hamsa Abujrida
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Patent number: 11166726Abstract: The present invention relates to a negative pressure wound closure system and methods for using such a system. Preferred embodiments of the invention facilitate closure of the wound by preferentially contracting to provide for movement of the tissue. Preferred embodiments can utilize tissue grasping elements to apply a wound closing force to the tissue.Type: GrantFiled: August 22, 2016Date of Patent: November 9, 2021Assignee: University of MassachusettsInventor: Raymond Dunn
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Publication number: 20210244571Abstract: A surgical drain device includes an adhesion matrix of biodegradable polymer material and a plurality of drain tubes attached to the matrix. The device is implanted within a surgical wound to treat the presence of seromas, for example, and is used to promote drainage, tissue adhesion, and wound closure. The drain tubes converge into a common collection tube that leads wound fluid outside the body under gravity feed or negative pressure applied to the collection tube. The matrix contains an array of apertures that allow tissue contact across the device. The device also can include a coating of surgical adhesive and a tissue anchoring system of hooks or barbs. The device can be used with a negative pressure system to further improve the drainage band can also be used with a wound dressing. The device and systems containing the device are particularly useful to promote the healing of surgical wounds from abdominal surgery.Type: ApplicationFiled: April 30, 2021Publication date: August 12, 2021Inventor: Raymond Dunn
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Patent number: 11000418Abstract: A surgical drain device includes an adhesion matrix of biodegradable polymer material and a plurality of drain tubes attached to the matrix. The device is implanted within a surgical wound to treat the presence of seromas, for example, and is used to promote drainage, tissue adhesion, and wound closure. The drain tubes converge into a common collection tube that leads wound fluid outside the body under gravity feed or negative pressure applied to the collection tube. The matrix contains an array of apertures that allow tissue contact across the device. The device also can include a coating of surgical adhesive and a tissue anchoring system of hooks or barbs. The device can be used with a negative pressure system to further improve the drainage band can also be used with a wound dressing. The device and systems containing the device are particularly useful to promote the healing of surgical wounds from abdominal surgery.Type: GrantFiled: October 28, 2016Date of Patent: May 11, 2021Assignee: University of MassachusettsInventor: Raymond Dunn
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Patent number: 10814049Abstract: Systems, devices, and methods of the present application can accelerate and reduce medical complications associated with healing of non-planar wounds such as amputation wounds. The devices and methods utilize a collapsing structure and negative pressure to cause the shaped wound to preferentially close. The structure can accommodate movement over curved tissue surfaces, which can utilize scales or interleaved elements to provide efficient wound closure along arcuate paths. This structure can enable gradual closure from the deepest portion of the wound to the shallowest portion.Type: GrantFiled: June 21, 2017Date of Patent: October 27, 2020Assignee: University of MassachusettsInventor: Raymond Dunn
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Publication number: 20200268562Abstract: Systems, devices, and methods of the present application can accelerate and reduce medical complications associated with healing of amputation wounds. The devices and methods utilize a compression structure and negative pressure to cause the amputation wound to preferentially close from the deepest portion of the wound to the shallowest portion.Type: ApplicationFiled: February 28, 2020Publication date: August 27, 2020Inventor: Raymond Dunn
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Publication number: 20200188564Abstract: Systems, devices, and methods of the present application can accelerate and reduce medical complications associated with healing of non-planar wounds such as amputation wounds. The devices and methods utilize a collapsing structure and negative pressure to cause the shaped wound to preferentially close. The structure can accommodate movement over curved tissue surfaces, which can utilize scales or interleaved elements to provide efficient wound closure along arcuate paths. This structure can enable gradual closure from the deepest portion of the wound to the shallowest portion.Type: ApplicationFiled: December 13, 2019Publication date: June 18, 2020Inventor: Raymond Dunn
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Patent number: 10575991Abstract: Systems, devices, and methods of the present application can accelerate and reduce medical complications associated with healing of amputation wounds. The devices and methods utilize a compression structure and negative pressure to cause the amputation wound to preferentially close from the deepest portion of the wound to the shallowest portion.Type: GrantFiled: March 10, 2016Date of Patent: March 3, 2020Assignee: University of MassachusettsInventor: Raymond Dunn
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Publication number: 20200038023Abstract: The present invention relates to a negative pressure wound closure system and methods for using such a system. Preferred embodiments of the invention facilitate closure of the wound by preferentially contracting to provide for movement of the tissue. Preferred embodiments can utilize tissue grasping elements to apply a wound closing force to the tissue.Type: ApplicationFiled: August 13, 2019Publication date: February 6, 2020Inventor: Raymond Dunn
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Publication number: 20190282256Abstract: A contoured forceps handle is presented having a first arm with a contoured surface and a second arm with a contoured surface to provide for rotation in the hand of a user. The forceps handle may be used with a forceps or may have tips attached. Contoured forceps onlays are also presented that may be attached to forceps.Type: ApplicationFiled: January 22, 2019Publication date: September 19, 2019Inventor: Raymond Dunn
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Patent number: 10405861Abstract: The present invention relates to a negative pressure wound closure system and methods for using such a system. Preferred embodiments of the invention facilitate closure of the wound by preferentially contracting to provide for movement of the tissue. Preferred embodiments can utilize tissue grasping elements to apply a wound closing force to the tissue.Type: GrantFiled: March 29, 2016Date of Patent: September 10, 2019Assignee: University of MassachusettsInventor: Raymond Dunn
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Publication number: 20190192205Abstract: A surgical elevator device that can be used in the reduction of bone fractures, particularly facial bone fractures, and even more particularly zygomatic arch fractures. The elevator device enables accurate measurement of the depth of insertion of the device into tissue space and provides tactile control of fracture location and reduction. In one embodiment, the elevator device comprises a groove on an elevator element for receiving a bone structure. The groove can be formed by a pair of parallel ridges. A projection extending from the elevator provides a pivot point for applying a controlled force to the bone to reduce the fracture. A preferred embodiment further comprises a method of reducing a bone fracture, such as a zygomatic arch fracture.Type: ApplicationFiled: March 5, 2019Publication date: June 27, 2019Inventor: Raymond Dunn
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Publication number: 20190104982Abstract: Systems, devices, and methods of the present application relate to the diagnostic measurement of condition for pressure ulcers. Preferred embodiments utilize pressure measurements at body locations to determine a diagnostic pressure ulcer value. A pressure sensor device generates patient pressure data that is processed by a data processor which utilizes a diagnostic function to determine the diagnostic value that indicates whether corrective action is needed to prevent pressure ulcer formation. One or more sensor devices can be attached to a patient to measure to transmit data for further processing.Type: ApplicationFiled: December 6, 2018Publication date: April 11, 2019Inventors: Raymond Dunn, John McNeill, Yitzhak Mendelson
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Patent number: 10201362Abstract: A contoured forceps handle is presented having a first arm with a contoured surface and a second arm with a contoured surface to provide for rotation in the hand of a user. The forceps handle may be used with a forceps or may have tips attached. Contoured forceps onlays are also presented that may be attached to forceps.Type: GrantFiled: April 24, 2015Date of Patent: February 12, 2019Assignee: University of MassachusettsInventor: Raymond Dunn
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Patent number: 10166148Abstract: A surgical drain device includes a matrix of biodegradable polymer material and a plurality of drain tubes attached to the matrix. The device is implanted within a surgical wound to treat the presence of seromas, for example, and is used to promote drainage, tissue adhesion, and wound closure. The drain tubes converge into a common collection tube that leads wound fluid outside the body under gravity feed or negative pressure applied to the collection tube. The matrix contains an array of apertures that allow tissue contact across the device. A preferred embodiment comprises a tissue anchoring system including anchor elements such as hooks or barbs. The device can be used with a negative pressure system to further improve the drainage band can also be used with a wound dressing. The device and systems containing the device are particularly useful to promote the healing of surgical wounds from abdominal surgery.Type: GrantFiled: November 13, 2012Date of Patent: January 1, 2019Assignee: University of MassachusettsInventor: Raymond Dunn