发明名称 |
SWITCH FOR ULTRASONIC SURGICAL TOOL |
摘要 |
<p>A switch unit (40) is mountable to a distal end of a handpiece of an electrically-activatable surgical tool, such as an ultrasonically-vibratable surgical tool. The switch unit (40) has a generally bullet-shaped outer form with an axial bore (42) through which a waveguide of the tool extends. A resiliently deformable band (1) extends around the switch unit (40) above a polygonal-section contact zone (2), such that fingertip pressure on the band (1) may locally depress the band (1) towards a flat area (12) of the contact zone (2). Switch contacts (11) are mounted to an inner surface of the band (1) opposite a plated circuit (10) located on each flat area (12) so as to form a plurality of switches. A switch to activate the tool is thus easily accessible to a user's fingertip in any orientation of the handpiece in the user's hand. The switch contacts (11) may each comprise a body having an electrical resistance dependent on a pressure exerted thereon. A magnitude of a response from the tool may thus be controlled by the pressure exerted by the user's fingertip.</p> |
申请公布号 |
EP2164410(A2) |
申请公布日期 |
2010.03.24 |
申请号 |
EP20080762329 |
申请日期 |
2008.06.11 |
申请人 |
SRA DEVELOPMENTS LIMITED |
发明人 |
YOUNG, MICHAEL, JOHN, RADLEY;YOUNG, STEPHEN, MICHAEL, RADLEY |
分类号 |
A61B17/32;A61B18/00;H01H9/06 |
主分类号 |
A61B17/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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