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    • 5. 发明申请
    • PROPORTIONAL VALVE WITH SHAPE MEMORY ALLOY (SMA) ACTUATOR
    • 具有形状记忆合金(SMA)执行器的比例阀
    • WO2002090807A1
    • 2002-11-14
    • PCT/IT2001/000219
    • 2001-05-08
    • SCUOLA SUPERIORE DI STUDI UNIVERSITARI E DI PERFEZIONAMENTO S. ANNADARIO, PaoloCARROZZA, Maria, ChiaraARENA, Alberto
    • DARIO, PaoloCARROZZA, Maria, ChiaraARENA, Alberto
    • F16K31/00
    • G05D23/08F16K31/002Y10T137/0363Y10T137/0396Y10T137/7761
    • A proportional valve for the control of the outlet pressure of a fluid flowing therethrough comprising a valve body (1) with an inlet port (15) and an outlet port (17) for the fluid and an inner chamber (8), within which there is formed a valve seat (9) whose opening is varied by means of a shutter (10) axially movable from and towards the valve seat, the movement of the shutter being controlled by a SMA actuating member (11) acting antagonistically to elastic means (12), the temperature of the fluid being lower than the transition temperature of the shape memory alloy. The actuating member and the elastic means are connected to the valve body (1) at opposite sides with respect to the valve seat and power means (105) are provided to be activated for circulating an electric current through said actuating member to heat it by Joule effect from a temperature lower than the transition temperature to an higher one. At least a vent hole (18) for the fluid is formed on the valve body (1) for putting the part of the chamber (8) upstream of said valve seat (9) into communication with the outside or a collection network, the actuating member (11) being housed in said part of chamber in correspondence to the inlet port of the fluid, whereby a continuous flow of fluid around the actuating member is ensured for accelerating the cooling process. A closed-loop control circuit for the power means (105) is provided for controlling the circulating current as a function of a pressure signal generated by fluid pressure sensing means (19) and in such a way to offset the retarding effect produced by the fluid during the heating step of the actuating member.
    • 用于控制流过流体的流体的出口压力的比例阀,包括具有用于流体的入口(15)和出口(17)的阀体(1)和内室(8) 形成阀座(9),其开口通过从阀座轴向移动的挡板(10)而变化,所述挡板的运动由与弹性装置相反作用的SMA致动构件(11)控制 12),流体的温度低于形状记忆合金的转变温度。 致动构件和弹性装置在相对于阀座的相对侧处连接到阀体(1),并且动力装置(105)被设置成被启动用于使电流循环通过所述致动构件以通过焦耳 从低于转变温度的温度到较高的温度。 至少一个用于流体的通气孔(18)形成在阀体(1)上,用于将腔室(8)的一部分放置在所述阀座(9)的上游,与外部或收集网络连通,致动 构件(11)相对于流体的入口容纳在腔室的所述部分中,由此确保围绕致动构件的连续的流体流以加速冷却过程。 提供用于功率装置(105)的闭环控制电路,用于根据由流体压力检测装置(19)产生的压力信号来控制循环电流,并且以这种方式抵消流体产生的阻滞效应 在致动构件的加热步骤期间。
    • 8. 发明申请
    • ENDOLUMINAL ROBOTIC SYSTEM
    • 内镜机器人系统
    • WO2010046823A1
    • 2010-04-29
    • PCT/IB2009/054561
    • 2009-10-16
    • SCUOLA SUPERIORE DI STUDI UNIVERSITARI E DI PERFEZIONAMENTO SANT'ANNADARIO, PaoloCUSCHIERI, AlfredMENCIASSI, AriannaVALDASTRI, PietroHARADA, Kanako
    • DARIO, PaoloCUSCHIERI, AlfredMENCIASSI, AriannaVALDASTRI, PietroHARADA, Kanako
    • A61B1/05A61B1/273A61B5/07A61B17/00A61B17/04A61B19/00B25J7/00
    • A61B34/30A61B34/72A61B2017/306A61B2034/303A61B2034/304
    • A micro-robotic platform and a method for deploying the platform in a body cavity for performing endoluminal surgical interventions in a fully bimanual fashion. The platform comprises a first (1) and a second (2) surgical robot each provided with a surgical tool (5, 6) and being configured to be attached to the body cavity wall. The first and the second surgical robot each comprises a first (11 ) and a second (12) snake-like robotic unit, the first snake-like robotic unit (11 ) comprising a first central unit (13) and first articulated attachment means (7a, b; 8a, b; 9) extending from said first central unit (13) for attaching the first central unit to the body cavity wall. The second snake-like robotic unit (12) comprises a second central unit (14), second articulated attachment means (7c; 8c; 9) for attaching the second central unit to the body cavity wall and an articulated arm (3, 4) bearing the surgical tool (5, 6), the second articulated attachment means and the articulated arm extending from the second central unit. Releasable connection means (15) are provided on the first and second central units (13, 14) to connect the first central unit to the second central unit releasably to form each of the first and second surgical robot within the body cavity deployed in such a way to allow a surgical procedure to be performed in a true bimanual way.
    • 一种微机器人平台和一种在体腔内部署平台的方法,用于以完全双目的方式进行腔内外科手术。 平台包括第一(1)和第二(2)外科手术机器人,每个手术机器人设有外科手术工具(5,6)并被配置为附接到体腔壁。 第一和第二外科手术机器人每个包括第一(11)和第二(12)蛇形机器人单元,第一蛇状机器人单元(11)包括第一中心单元(13)和第一铰接附接装置 7a,b; 8a,b; 9),其从所述第一中心单元(13)延伸,用于将所述第一中心单元附接到所述体腔壁。 第二蛇形机器人单元(12)包括第二中心单元(14),用于将第二中心单元附接到体腔壁的第二铰接附接装置(7c; 8c; 9)和铰接臂(3,4) 承载所述手术工具(5,6),所述第二铰接附接装置和所述铰接臂从所述第二中心单元延伸。 可释放的连接装置(15)设置在第一和第二中心单元(13,14)上,以将第一中心单元与第二中央单元可释放地连接,以在体腔内的每个第一外科手术机器人和第二外科手术机构中部署 方式允许外科手术以真正的双手方式进行。