专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20170143398A1 TORSIONAL ORTHOPAEDIC REVISION SYSTEM 审中-公开
公开(公告)号：US20170143398A1
公开(公告)日：2017-05-25
申请号：US15320604
申请日：2015-06-27
申请人： RADLEY SCIENTIFIC LIMITED
发明人： Michael John Radley YOUNG , Stephen Michael Radley YOUNG , Michael James EDE
IPC分类号： A61B17/88 , A61B17/32 , A61B17/16
CPC分类号： A61B17/8847 , A61B17/164 , A61B17/1659 , A61B17/320068 , A61B2017/1602 , A61B2017/320089 , A61B2017/320098 , A61F2/36 , A61F2002/4619 , A61F2002/4683
摘要： A torsional-mode ultrasonic vibration generator is manufactured with longitudinal slots extending along its horn which damp unwanted vibrational modes and allow it to be made significantly smaller than previous apparatus. The torsional-mode ultrasonic generator is operable with a suite of surgical tools, to perform portions of an orthopaedic arthroplasty revision procedure. Three of the tools are for removing bone cement from within a bone cavity on a prosthesis cemented into the bone cavity. Three other tools are for separating an uncemented prosthesis from ingrown bone by cutting the bone between the prosthesis and walls of the bone cavity. The seventh tool is provided with sensors to determine a separation between a bone-cutting tool head and a metal prosthesis, feedback from the sensors being used to control servo motors of an articulated mounting for the seventh tool, to maintain the separation at a desirable value.

2. 发明授权

US11583308B2 Torsional ultrasound generator for orthopaedic procedures 有权
公开(公告)号：US11583308B2
公开(公告)日：2023-02-21
申请号：US16478429
申请日：2018-01-17
申请人： RADLEY SCIENTIFIC LIMITED
发明人： Sean Martin Badcott , Stephen Michael Radley Young , Michael John Radley Young
IPC分类号： A61B17/32
摘要： Apparatus for generating torsional-mode ultrasonic vibrations, for example in a surgical tool, comprises an ultrasonic transducer that would conventionally produce longitudinal-mode ultrasonic vibrations, with a long, hollow, cylindrical, mode converter mounted coaxially to its distal end. A plurality of holes are formed through the walls of the mode converters. These holes are arranged in multiple parallel helical rows, extending along and around the cylindrical mode converters. Holes within the same row are spaced relatively closely, compared with the spacing between rows. Relationships have been established between the hole diameter (d), the spacing between rows (W), the spacing between holes in the same row (l), the spacing between individual holes in adjacent rows (L), and the overall diameter of the mode converter (D). In a preferred version, the holes through the walls of the second mode converter are tapered inwardly, rather than being cylindrical holes as in the first mode converter.

3. 发明授权

US10702325B2 Plastics implant revision and removal system 有权
公开(公告)号：US10702325B2
公开(公告)日：2020-07-07
申请号：US15326527
申请日：2015-07-20
申请人： RADLEY SCIENTIFIC LIMITED
发明人： Michael John Radley Young
IPC分类号： A61B17/92 , A61B17/16 , A61B17/88 , A61B17/34 , A61B17/32 , A61B17/17 , A61B17/72
摘要： A fracture in a hollow bone is supported temporarily by a rigid plastics implant formed within a balloon within the bone. To assist implant removal, an access port, comprising a hollow cylinder, is inserted through an aperture made in an end of the bone and surrounds a proximal end of the implant. The access port is connected to a source of torsional-mode ultrasonic vibrations to soften the plastic implant and improve engagement between access port and implant. Removal of the ultrasound source allows introduction of a cutting tool through the access port, which guides it to hollow out the implant. The implant then collapses within the balloon and is withdrawn through the access port. One suitable cutting tool has a head with four helical fins separated by part-circular grooves and a concave distal face. Ultrasonically activated, the fin tips soften and cut the plastic, which flows away along the grooves.

4. 发明申请

US20170202590A1 PLASTICS IMPLANT REVISION AND REMOVAL SYSTEM 审中-公开
公开(公告)号：US20170202590A1
公开(公告)日：2017-07-20
申请号：US15326527
申请日：2015-07-20
申请人： RADLEY SCIENTIFIC LIMITED
发明人： Michael John Radley YOUNG
IPC分类号： A61B17/92 , A61B17/34 , A61B17/88 , A61B17/16 , A61B17/32
摘要： A fractured hollow bone can be supported by forming a rigid plastics implant within a cavity of the bone, extending across the fracture. An access port aids removal or revision of the implant. The port comprises a hollow cylinder, with a distal end inserted through an aperture in an end of the bone into the cavity to surround a proximal end of the implant. The access port is connectable to a source of torsional-mode ultrasonic vibrations, which soften the plastics material of the implant, improving engagement between the implant and a threaded formation within the distal end of the access port. Removal of the source allows the access port to act as a guide passage, in line with the elongate implant. A cutting tool introduced through the access port is thus guided so that it can be used to hollow out the implant. Once sufficiently hollowed-out, the implant collapses within its surrounding balloon. The engagement of the access port with the proximal end of the implant allows the implant and balloon to be drawn out of the cavity. A particularly suitable cutting tool has a roughly cylindrical operative head comprising four equally-spaced fins separated by four part-circular grooves. The fins and grooves extend helically of the operative head. The distal end is concave. When activated by torsional-mode ultrasonic vibrations, the distal tips of the fins produce an effective longitudinal cutting action. Debris and softened plastics material flow proximally along the grooves away from the distal end where most cutting occurs.

5. 发明公开

US20230293212A1 ORTHOPAEDIC CEMENT REMOVAL TOOLS 审中-公开
公开(公告)号：US20230293212A1
公开(公告)日：2023-09-21
申请号：US18006792
申请日：2021-07-26
申请人： RADLEY SCIENTIFIC LIMITED
发明人： Sean Martin BADCOTT , Stephen Michael Radley YOUNG
IPC分类号： A61B17/88
CPC分类号： A61B17/8847 , A61B2017/320098
摘要： An ultrasonically-vibratable surgical tool for cement removal in revision arthroplasty, comprises an elongate solid shaft. This can be mounted at its proximal end to a source of ultrasonic vibrations, so that the shaft acts as a waveguide for propagation of the ultrasonic vibrations. The shaft has at its distal end an operative head to act on the cement. An intermediate portion of the elongate shaft is provided with at least one row of dimples extending helically along and around that portion of the elongate shaft. Each dimple is separate from each adjacent dimple. The dimples may have a shallow part-spherical profile.

6. 发明授权

US10327827B2 Torsional orthopaedic revision system 有权
公开(公告)号：US10327827B2
公开(公告)日：2019-06-25
申请号：US15320604
申请日：2015-06-27
申请人： RADLEY SCIENTIFIC LIMITED
发明人： Michael John Radley Young , Stephen Michael Radley Young , Michael James Ede
IPC分类号： A61B17/88 , A61B17/32 , A61B17/16 , A61F2/46
摘要： A torsional-mode ultrasonic vibration generator is manufactured with longitudinal slots extending along its horn which damp unwanted vibrational modes and allow it to be made significantly smaller than previous apparatus. The torsional-mode ultrasonic generator is operable with a suite of surgical tools, to perform portions of an orthopaedic arthroplasty revision procedure. Three of the tools are for removing bone cement from within a bone cavity on a prosthesis cemented into the bone cavity. Three other tools are for separating an uncemented prosthesis from ingrown bone by cutting the bone between the prosthesis and walls of the bone cavity. The seventh tool is provided with sensors to determine a separation between a bone-cutting tool head and a metal prosthesis, feedback from the sensors being used to control servo motors of an articulated mounting for the seventh tool, to maintain the separation at a desirable value.

7. 发明申请

US20210338297A1 ORTHOPAEDIC CEMENT REMOVAL TOOLS AND METHOD 有权
公开(公告)号：US20210338297A1
公开(公告)日：2021-11-04
申请号：US17279572
申请日：2019-09-25
申请人： RADLEY SCIENTIFIC LIMITED
发明人： Stephen Michael Radley Young , Sean Martin Badcott
IPC分类号： A61B17/88 , A61N7/00
摘要： A series of surgical tools (11, 21, 31, 41, 51, 61, 71, 81) have respective operative heads (16, 26, 36, 46, 56, 66, 76, 86 & 96) mounted adjacent a distal end of an elongate waveguide (12, 13, 14). The operative heads (16, 26, 36, 46, 56, 66, 76, 86 & 96) are used to remove PMMA bone cement (2, 5) from within a hollow bone (1), such as a femur (1), as part of a prosthesis revision operation, such as replacement of an artificial hip joint. Torsional-mode ultrasonic vibrations are transmitted along the waveguide (12, 13, 14) to the respective operative heads (16, 26, 36, 46, 56, 66, 76, 86 & 96), which are applied to the bone cement (2, 5), softening it and facilitating its removal. Elongate radial channels (18, 23, 28, 38) extend across cement-contacting faces of several of the surgical tools (11, 21, 31, 41, 71, 81), acting to focus and transmit the torsional-mode ultrasonic vibrations into adjacent cement (2, 5). In another tool (51), scalloped recesses (58, 59) in its cement-contact face have substantially the same effect, while in a further tool (61), a series of notches (65) along a distal edge (69) of the tool (61) have an analogous function. The operative heads (76, 86, 96) of certain tools (71, 81) can be embedded into a cement plug (5) then used to pull the plug (5) as a unit out of the bone (1).

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式