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    Negative pressure wound closure devices and methods
    1.
    发明授权
    Negative pressure wound closure devices and methods 有权

    公开(公告)号：US11471586B2

    公开(公告)日：2022-10-18

    申请号：US16714470

    申请日：2019-12-13

    Applicant: University of Massachusetts

    Inventor： Raymond Dunn

    IPC: A61M1/00 ,  A61L15/22 ,  A61L15/42 ,  A61L15/58 ,  A61F13/00 ,  A61F13/02 ,  A61M27/00 ,  A61B17/50

    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.

    Negative pressure wound closure device
    6.
    发明授权
    Negative pressure wound closure device 有权

    公开(公告)号：US11166726B2

    公开(公告)日：2021-11-09

    申请号：US15243320

    申请日：2016-08-22

    Applicant: University of Massachusetts

    Inventor： Raymond Dunn

    IPC: A61F13/00 ,  A61M1/00 ,  A61B17/08

    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.

    NEGATIVE PRESSURE WOUND CLOSURE DEVICES AND METHODS
    8.
    发明申请
    NEGATIVE PRESSURE WOUND CLOSURE DEVICES AND METHODS 审中-公开

    公开(公告)号：US20200268562A1

    公开(公告)日：2020-08-27

    申请号：US16805276

    申请日：2020-02-28

    Applicant: University of Massachusetts

    Inventor： Raymond Dunn

    IPC: A61F13/00 ,  A61F13/02 ,  A61M1/00

    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.

    ZYGOMATIC ELEVATOR DEVICE AND METHODS
    9.
    发明申请
    ZYGOMATIC ELEVATOR DEVICE AND METHODS 审中-公开

    公开(公告)号：US20190192205A1

    公开(公告)日：2019-06-27

    申请号：US16293181

    申请日：2019-03-05

    Applicant: University of Massachusetts

    Inventor： Raymond Dunn

    IPC: A61B17/88 ,  A61B17/02

    CPC classification number: A61B17/8866 ,  A61B17/0218 ,  A61B17/025 ,  A61B17/885

    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.

    Surgical cavity drainage and closure system
    10.
    发明授权
    Surgical cavity drainage and closure system 有权

    公开(公告)号：US10166148B2

    公开(公告)日：2019-01-01

    申请号：US13675736

    申请日：2012-11-13

    Applicant: University of Massachusetts

    Inventor： Raymond Dunn

    IPC: A61M27/00 ,  A61F13/02 ,  A61F13/14 ,  A61B17/04 ,  A61M1/00 ,  A61F13/00

    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.

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