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).

  • Patent number: 11911174
    Abstract: 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: Grant
    Filed: December 6, 2018
    Date of Patent: February 27, 2024
    Assignees: University of Massachusetts, Worcester Polytechnic Institute
    Inventors: Raymond Dunn, John McNeill, Yitzhak Mendelson
  • Patent number: 11607259
    Abstract: 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: Grant
    Filed: March 5, 2019
    Date of Patent: March 21, 2023
    Assignee: University of Massachusetts
    Inventor: Raymond Dunn
  • Patent number: 11471586
    Abstract: 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: Grant
    Filed: December 13, 2019
    Date of Patent: October 18, 2022
    Assignee: University of Massachusetts
    Inventor: Raymond Dunn
  • Publication number: 20220096085
    Abstract: 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: Application
    Filed: October 19, 2021
    Publication date: March 31, 2022
    Inventor: Raymond Dunn
  • Patent number: 11266373
    Abstract: 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: Grant
    Filed: April 14, 2017
    Date of Patent: March 8, 2022
    Assignees: University of Massachusetts, Worcester Polytechnic Institute
    Inventors: Dennis Giaya, Rebecca Stolarczyk, Yitzhak Mendelson, Arriyan Samandar Dowlatshahi, Raymond Dunn
  • Publication number: 20210361225
    Abstract: 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: Application
    Filed: June 7, 2021
    Publication date: November 25, 2021
    Inventors: Raymond Dunn, John McNeill, Yitzhak Mendelson, Hamsa Abujrida
  • Patent number: 11166726
    Abstract: 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: Grant
    Filed: August 22, 2016
    Date of Patent: November 9, 2021
    Assignee: University of Massachusetts
    Inventor: Raymond Dunn
  • Publication number: 20210244571
    Abstract: 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: Application
    Filed: April 30, 2021
    Publication date: August 12, 2021
    Inventor: Raymond Dunn
  • Patent number: 11000418
    Abstract: 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: Grant
    Filed: October 28, 2016
    Date of Patent: May 11, 2021
    Assignee: University of Massachusetts
    Inventor: Raymond Dunn
  • Patent number: 10814049
    Abstract: 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: Grant
    Filed: June 21, 2017
    Date of Patent: October 27, 2020
    Assignee: University of Massachusetts
    Inventor: Raymond Dunn
  • Publication number: 20200268562
    Abstract: 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: Application
    Filed: February 28, 2020
    Publication date: August 27, 2020
    Inventor: Raymond Dunn
  • Publication number: 20200188564
    Abstract: 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: Application
    Filed: December 13, 2019
    Publication date: June 18, 2020
    Inventor: Raymond Dunn
  • Patent number: 10575991
    Abstract: 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: Grant
    Filed: March 10, 2016
    Date of Patent: March 3, 2020
    Assignee: University of Massachusetts
    Inventor: Raymond Dunn
  • Publication number: 20200038023
    Abstract: 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: Application
    Filed: August 13, 2019
    Publication date: February 6, 2020
    Inventor: Raymond Dunn
  • Publication number: 20190282256
    Abstract: 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: Application
    Filed: January 22, 2019
    Publication date: September 19, 2019
    Inventor: Raymond Dunn
  • Patent number: 10405861
    Abstract: 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: Grant
    Filed: March 29, 2016
    Date of Patent: September 10, 2019
    Assignee: University of Massachusetts
    Inventor: Raymond Dunn
  • Publication number: 20190192205
    Abstract: 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: Application
    Filed: March 5, 2019
    Publication date: June 27, 2019
    Inventor: Raymond Dunn
  • Publication number: 20190104982
    Abstract: 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: Application
    Filed: December 6, 2018
    Publication date: April 11, 2019
    Inventors: Raymond Dunn, John McNeill, Yitzhak Mendelson
  • Patent number: 10201362
    Abstract: 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: Grant
    Filed: April 24, 2015
    Date of Patent: February 12, 2019
    Assignee: University of Massachusetts
    Inventor: Raymond Dunn
  • Patent number: 10166148
    Abstract: 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: Grant
    Filed: November 13, 2012
    Date of Patent: January 1, 2019
    Assignee: University of Massachusetts
    Inventor: Raymond Dunn