Counter-balanced oscillating surgical saw
    32.
    发明授权
    Counter-balanced oscillating surgical saw 失效
    平衡摆动手术锯

    公开(公告)号:US5846244A

    公开(公告)日:1998-12-08

    申请号:US924296

    申请日:1997-09-05

    Applicant: Phil Cripe

    Inventor: Phil Cripe

    CPC classification number: B27B19/008 A61B17/142

    Abstract: A counter-balanced oscillating surgical saw for use in surgical procedures is described which greatly reduces the vibrations caused when the saw blades contact the patient's anatomy. The reduction of vibration is achieved by the present saw which uses two oscillating blades to counter the kinetic energy typically lost when only one blade is used. The preferred embodiment of the present invention includes at least two cutting blades mounted on at least two actuator blocks. The actuator blocks are preferably mounted on at least two shafts which extend from the top of the saw handle: a pivot shaft and a rotatable shaft which is rotated by an electric motor. At least two eccentric bearings are mounted to the rotatable shaft (one bearing for each actuator block) such that the bearings orbit about the rotatable shaft 180.degree. out-of-phase with respect to one another. The actuator blocks are positioned adjacent the eccentric bearings so that they move in a reciprocating manner about the rotatable shaft of the saw. The to-and-fro motion of the actuator blocks is transformed into a counter-balanced oscillating motion of the cutting blades. Mechanical vibration, rotational and linear momentum of the saw is greatly reduced during surgery because as the cutting blades oscillate about the point of incision, the momentum produced by one cutting blade is offset by the momentum produced by its counterpart cutting blade.

    Abstract translation: 描述了用于外科手术的反平衡摆动手术锯,其大大减少了当锯片接触患者解剖结构时引起的振动。 通过使用两个摆动叶片来抵抗当仅使用一个叶片时通常损失的动能的本锯可实现振动的减小。 本发明的优选实施例包括安装在至少两个致动器块上的至少两个切割刀片。 致动器块优选地安装在从锯柄的顶部延伸的至少两个轴:枢转轴和由电动机旋转的可旋转轴。 至少两个偏心轴承安装到可旋转轴(用于每个致动器块的一个轴承),使得轴承围绕可旋转轴线180°相对于彼此不同相轨道。 致动器块邻近偏心轴承定位,使得它们以往复方式绕锯的可旋转轴移动。 致动器块的往复运动被转换成切割刀片的反平衡摆动运动。 手术期间,锯齿的机械振动,旋转和线性动量大大降低,因为随着切割刀片围绕切割点的摆动,一个切割刀片产生的动量被其对应切割刀片产生的动量抵消。

    Locking surgical tool handle system
    33.
    发明授权
    Locking surgical tool handle system 失效
    锁定手术刀柄系统

    公开(公告)号:US5190550A

    公开(公告)日:1993-03-02

    申请号:US881688

    申请日:1992-05-12

    CPC classification number: A61B17/1659 A61B2017/0046

    Abstract: A locking surgical tool handle system. The invention includes a surgical tool handle that has an elongated body portion with a pistol-type grip. The front end of the handle body has a tool retaining structure comprising a contoured engagement face and a moveable tension bar with an engagement end. Projections on the engagement end of the tension bar fit within a receiving channel of a surgical tool, such as a broach or rasp. A locking mechanism is provided within the handle body, and is implemented with pivotable links attached to the tension bar. The locking mechanism has an unlocked position in which the engagement end of the tension bar is spaced away from the engagement face of the handle body, and an over-center locked position in which the engagement end of the tension bar is retracted toward the handle body. When the tool handle is placed in its locked position, the engagement end of the tension bar pulls an attached tool into tight contact with the engagement face of the handle body.

    Abstract translation: 锁定手术工具手柄系统。 本发明包括外科手术工具手柄,其具有带有手枪型手柄的细长主体部分。 手柄本体的前端具有工具保持结构,该结构包括轮廓接合面和具有接合端的可动张力杆。 张力杆的接合端上的突出部配合在诸如拉刀或锉刀的手术工具的接收通道内。 锁定机构设置在把手主体内,并且具有连接到张力杆上的可转动的连杆。 锁定机构具有解锁位置,其中张力杆的接合端与手柄主体的接合面间隔开,并且过中心锁定位置,拉杆的接合端朝向把手本体 。 当工具手柄处于其锁定位置时,张力杆的接合端将附接的工具拉动与把手主体的接合面紧密接触。

    PLATFORM RTSA GLENOID PROSTHESIS WITH MODULAR ATTACHMENTS CAPABLE OF IMPROVING INITIAL FIXATION, FRACTURE RECONSTRUCTIONS, AND JOINT BIOMECHANICS

    公开(公告)号:US20240074867A1

    公开(公告)日:2024-03-07

    申请号:US18469366

    申请日:2023-09-18

    Applicant: Exactech, Inc.

    CPC classification number: A61F2/4081 A61B17/80 A61B17/86 A61F2002/30578

    Abstract: In some embodiments, the present invention provides a reverse shoulder glenoid prosthesis which supports the attachment of multiple different types of modular attachments that can: 1) provide additional scapular fixation (ie external to the glenoid) in order to improve glenoid implant fixation in cases of severe bone loss/fracture, 2) provide joint line lateralization to improve tissue stability in cases of severe glenoid/scapula bone loss, 3) facilitate use and containment of glenoid bone graft in cases of severe glenoid/scapula bone loss—particularly in those cases in which the glenoid defect is uncontained/peripheral 4) achieve glenoid fixation while at the same time reconstructing the scapular bone in cases of scapula fractures, glenoid fractures, and/or acromial fractures, and 5) provide improved rTSA joint biomechanics, particularly posterior rotator cuff efficiency by changing the line of action of the infraspinatus and teres minor muscles to improve their muscle tension, and also increase each muscle's external rotation and abduction moment arm lengths.

    HUMERAL TRAYS WITH TUBEROSITY AUGMENTS SUFFICIENTLY DESIGNED TO IMPROVE JOINT MECHANICS

    公开(公告)号:US20230038220A1

    公开(公告)日:2023-02-09

    申请号:US17850520

    申请日:2022-06-27

    Applicant: Exactech, Inc.

    Abstract: Disclosed is a prosthetic augment designed to reconstruct a lateral tuberosity shape of a humerus in a subject having proximal bone loss that includes a humeral adapter tray configured to connect a humeral liner of a reverse shoulder prosthesis to a humeral stem of the reverse shoulder prosthesis and an augment member having a first face adapted for contacting the humeral stem of the reverse shoulder prosthesis and a second face adapted for contacting an underside of a muscle, wherein at least a portion of the second face includes a bulbous surface adapted to alter a wrapping angle of the muscle around the lateral tuberosity, and wherein the second face has a radius of curvature selected from one of a constant radius of curvature or a variable radius of curvature.

    Method and system for modeling predictive outcomes of arthroplasty surgical procedures

    公开(公告)号:US11490966B2

    公开(公告)日:2022-11-08

    申请号:US17233152

    申请日:2021-04-16

    Applicant: EXACTECH, INC.

    Abstract: An apparatus includes a processor and a non-transitory memory. The processor is configured to receive pre-operative patient specific data. The pre-operative patient specific data is inputted to a first machine learning model to determine a first predicted post-operative joint performance data output including first predicted post-operative outcome metrics. A reconstruction plan of the joint of the patient is generated based on a medical image of the joint, and at least one arthroplasty surgical parameter obtained from the user. The at least one arthroplasty surgical parameter is inputted into a second machine learning model to determine a second predicted post-operative joint performance data output including second predicted post-operative outcome metrics. The second predicted post-operative joint performance data output is updated to include an arthroplasty surgery recommendation, in response to the user varying the at least one arthroplasty surgical parameter, before the arthroplasty surgery, during the arthroplasty surgery, or both.

    ACROMION FRACTURE REPAIR SYSTEM
    38.
    发明申请

    公开(公告)号:US20220338908A1

    公开(公告)日:2022-10-27

    申请号:US17633061

    申请日:2020-08-06

    Applicant: Exactech, Inc.

    Abstract: A kit including (1) a plate configured to be secured to a scapular spine with a first end of the plate near a trigonum and a second end of the plate near an acromion; (2) a first hook including a mount, a first hook portion extending from the mount in a first direction, a spacer extending from the first hook portion in a transverse direction, and a second hook portion extending from an opposite end of the spacer in the first direction, the first hook adapted to extend around a lateral end of the acromion when fixed to the second end of the plate; and (3) a second hook including a mount, a curved portion curving away from the mount, and a hook portion at an opposite end of the curved portion, the second hook adapted to extend around the trigonum when fixed to the first end of the plate.

    Humeral trays with tuberosity augments sufficiently designed to improve joint mechanics

    公开(公告)号:US11369480B2

    公开(公告)日:2022-06-28

    申请号:US15523181

    申请日:2015-10-29

    Applicant: EXACTECH, INC.

    Abstract: Disclosed is a prosthetic augment designed to reconstruct a lateral tuberosity shape of a humerus in a subject having proximal bone loss that includes a humeral adapter tray configured to connect a humeral liner of a reverse shoulder prosthesis to a humeral stem of the reverse shoulder prosthesis and an augment member having a first face adapted for contacting the humeral stem of the reverse shoulder prosthesis and a second face adapted for contacting an underside of a muscle, wherein at least a portion of the second face includes a bulbous surface adapted to alter a wrapping angle of the muscle around the lateral tuberosity, and wherein the second face has a radius of curvature selected from one of a constant radius of curvature or a variable radius of curvature.

    Adaptable medical tray
    40.
    发明授权

    公开(公告)号:US11229497B2

    公开(公告)日:2022-01-25

    申请号:US15427702

    申请日:2017-02-08

    Applicant: EXACTECH, INC.

    Abstract: Adaptable medical trays are disclosed herein. An adaptable medical tray includes a first component medical tray having a plurality of walls, a bottom, and a removable top, the plurality of walls and the bottom arranged to form a cavity in the first component medical tray; and a second component medical tray removably coupled to the first component medical tray, the second component medical tray including a plurality of walls, a bottom, and a removable top, the plurality of walls and the bottom arranged to form a cavity in the second component medical tray. The first component medical tray and the second component medical tray are constructed of a sterilizable material and the first component medical tray is decouplable from the second component medical tray after a sterilization process without removing the removable tops from the cavities.

Patent Agency Ranking