公开(公告)号：WO2019171168A1

公开(公告)日：2019-09-12

申请号：PCT/IB2019/000197

申请日：2019-03-04

Applicant: WESTERN CLINICAL ENGINEERING LTD.

Inventor： MCEWEN, James, A. ,  JAMESON, Michael ,  JEYASURYA, Jeswin ,  GLINZ, Kenneth, L.

IPC: A61B17/135 ,  A61B17/132

Abstract: An apparatus for intermittent vascular occlusion based on a personalized tourniquet pressure (PTP) includes a dual-purpose tourniquet cuff having an inflatable bladder, a sensor module having a pulsation sensor communicating pneumatically with the inflatable bladder for sensing and characterizing pressure pulsations indicative of a distal occlusion pressure (DOP) to identify a minimum pressure at which penetration of blood past the cuff is stopped, a PTP estimator responsive to the pulsation sensor for producing an estimate of a PTP, wherein the estimate of the PTP is a function of the DOP, an effector module communicating pneumatically with the inflatable bladder for maintaining pressure in the bladder near the PTP during a first time period and for maintaining pressure in the bladder near a second level of pressure during a second time period, and a controller selectively operating the inflatable bladder in conjunction with the sensor module and the effector module.

公开(公告)号：WO2007106979A1

公开(公告)日：2007-09-27

申请号：PCT/CA2007/000411

申请日：2007-03-14

Applicant: WESTERN CLINICAL ENGINEERING LTD. ,  MCEWEN, James A. ,  JAMESON, Michael ,  GLINZ, Kenneth L. ,  UPWARD, Allen J.

Inventor： MCEWEN, James A. ,  JAMESON, Michael ,  GLINZ, Kenneth L. ,  UPWARD, Allen J.

IPC: A61B17/135

CPC classification number: A61B17/135

Abstract: A low-cost contour cuff for surgical tourniquet systems comprises: a sheath containing an inflatable bladder, the sheath having an arcuate shape, an outer surface and a centerline equidistant between first and second side edges; a securing strap non-releasably attached to the outer surface and formed of substantially inextensible material having a shape that is predetermined and substantially flat, wherein the strap includes a bending portion near a first strap end and a fastening portion near a second strap end, and wherein the bending portion is adapted to allow twisting of the bending portion out of the substantially flat shape to facilitate positioning of the fastening portion into any of a plurality of positions in the substantially flat shape; and fastening means for releasably attaching the fastening portion of the securing strap to the outer surface whenever the sheath is curved into a position for surrounding a limb.

Abstract translation: 用于手术止血带系统的低成本轮廓箍包括：包含可膨胀囊的护套，护套具有弓形形状，外表面和在第一和第二侧边缘之间等距的中心线; 固定带，其不可释放地附接到外表面并且由具有预定且基本上平坦的形状的基本上不可伸展的材料形成，其中所述带包括靠近第一带端部的弯曲部分和靠近第二带端部的紧固部分，以及 其中所述弯曲部分适于允许所述弯曲部分扭曲到基本平坦的形状之外，以便于将所述紧固部分定位在所述基本平坦形状的多个位置中的任一个中; 以及紧固装置，用于每当护套弯曲成用于围绕肢体的位置时，将固定带的紧固部分可释放地附接到外表面。

公开(公告)号：WO2007068093A1

公开(公告)日：2007-06-21

申请号：PCT/CA2006/002008

申请日：2006-12-08

Applicant: WESTERN CLINICAL ENGINEERING LTD. ,  MCEWEN, James, A. ,  JAMESON, Michael ,  GLINZ, Kenneth, L. ,  UPWARD, Allen, J.

Inventor： MCEWEN, James, A. ,  JAMESON, Michael ,  GLINZ, Kenneth, L. ,  UPWARD, Allen, J.

IPC: A61B17/135

CPC classification number: A61B17/135 ,  A61B17/1322 ,  A61B2017/0023

Abstract: Low-cost tourniquet cuff apparatus includes : an inflatable bladder formed of flexible material having a bladder width dimension when the bladder is uninflated and a having a bladder length dimension sufficient for encircling a limb of a surgical patient at a desired location on the limb and for overlapping upon itself, wherein the bladder includes a bladder first inner surface facing a bladder second inner surface along the bladder length dimension and across the bladder width dimension when the bladder is uninflated; securing means for securing the overlapping bladder around the limb at the desired location; port means communicating pneumatically with the inflatable bladder and releasably connectable to a tourniquet instrument for supplying the bladder with pressurized gas; and stiffener means having a predetermined stiffness and having a stiffener width dimension less than the bladder width dimension, wherein the stiffener means is non-releasably attached to the bladder first inner surface within the inflatable bladder. The stiffener means may have a stiffener length dimension that is at least equal to the limb circumference. A method of making the low-cost tourniquet cuff allows the cuff elements to be simply assembled and then sealed in one operation using radio-frequency welding or a similar process.

Abstract translation: 低成本止血带套装装置包括：由弹性材料形成的可膨胀囊，当膀胱未膨胀时具有膀胱宽度尺寸，并且具有足够的膀胱长度尺寸以足以将手术患者的肢体环绕在肢体上的期望位置，并且 其自身重叠，其中所述囊包括囊状物第一内表面，所述膀胱第一内表面沿着所述膀胱长度尺寸面向囊状物第二内表面，并且在膀胱未膨胀时穿过所述囊宽度尺寸; 固定装置，用于在所需位置处将重叠的囊固定在肢体周围; 端口意味着气动地与可膨胀的气囊连通并且可释放地连接到用于向气囊供应加压气体的止血带仪器; 以及具有预定刚度并且具有小于气囊宽度尺寸的加强件宽度尺寸的加强件装置，其中所述加强件装置不可释放地附接到所述可膨胀囊内的囊状物第一内表面。 加强装置可以具有至少等于肢体周长的加强件长度尺寸。 制造低成本止血带箍的方法允许袖带元件简单地组装，然后使用射频焊接或类似的过程在一个操作中密封。

公开(公告)号：WO2007016765A1

公开(公告)日：2007-02-15

申请号：PCT/CA2006/001268

申请日：2006-07-31

Applicant: WESTERN CLINICAL ENGINEERING LTD. ,  MCEWEN, James, A. ,  JAMESON, Michael

Inventor： MCEWEN, James, A. ,  JAMESON, Michael

IPC: A61B17/135

CPC classification number: A61B17/132 ,  A61B17/135 ,  A61B17/1355

Abstract: A surgical tourniquet cuff system includes a tourniquet cuff with a cuff connector for communicating pneumatically with the cuff and for releasably connecting to a tourniquet instrument connector to establish a pneumatic passageway between the cuff connector and the tourniquet instrument connector. A tourniquet instrument supplies pressurized gas through the pneumatic passageway to the cuff. The tourniquet instrument connector includes a cuff pressure transducer for producing a cuff pressure signal indicative of the pressure of gas within the gas passageway near the connection. The cuff may include a cuff usage register for containing a cuff usage record and the tourniquet instrument connector may include a cuff usage register interface for reading the record. The tourniquet cuff may further include a cuff sheath forming a flexible conduit containing the cuff connector and sized to allow the connection of the cuff connector to the tourniquet instrument connector within the sheath.

Abstract translation: 手术止血带套系统包括具有袖带连接器的止血带箍，其用于与袖带气动连通并且用于可释放地连接到止血带仪器连接器，以在袖带连接器和止血带仪器连接器之间建立气动通道。 止血带乐器将压缩气体通过气动通道提供给袖带。 止血带仪器连接器包括袖带压力传感器，用于产生指示靠近连接处的气体通道内的气体压力的袖带压力信号。 袖带可以包括用于包含袖带使用记录的袖带使用寄存器，并且止血带乐器连接器可以包括用于读取记录的袖带使用注册界面。 止血带可以进一步包括形成包含袖带连接器的柔性导管的袖套，其尺寸允许将袖带连接器连接到护套内的止血带仪器连接器。

公开(公告)号：WO2003015641A1

公开(公告)日：2003-02-27

申请号：PCT/CA2002/001239

申请日：2002-08-08

Applicant: WESTERN CLINICAL ENGINEERING LTD.

Inventor： MCEWEN, James, Allen ,  INKPEN, Kevin, Bryant ,  JAMESON, Michael ,  GLINZ, Kenneth, L.

IPC: A61B17/135

CPC classification number: A61B17/135 ,  A61B17/1355 ,  A61B90/92 ,  A61B2017/00482 ,  A61B2562/08

Abstract: A low cost tourniquet cuff with identification apparatus comprises: an outer strip; an inner strip positioned against the outer strip; a gas-tight seal joining the inner strip to the outer strip to form a cuff having a physical characteristic wherein the cuff includes an inflatable bladder of a predetermined length greater than the circumference of a limb at a selected location; and a cuff connector carried on the cuff and communicating pneumatically with the bladder for releasably connecting to a tourniquet instrument to establish a gas-tight passageway between the bladder and the instrument, wherein the cuff connector includes identification means indicative of the physical characteristic and detectable by the tourniquet instrument upon establishment of the gas-tight passageway. The bladder may be formed by first joining an outer strip having varying thickness to an inner strip along the sides of the outer strip and then further joining the outer and inner strips together with gas-tight seals spaced apart by the predetermined length.

Abstract translation: 具有识别装置的低成本止血带套包括：外条; 位于所述外条上的内条; 将所述内条带连接到所述外条上以形成具有物理特性的袖带的气密密封件，其中，所述袖带包括在选定位置处大于肢体周长的预定长度的可膨胀囊; 以及袖带连接器，其承载在袖带上并与膀胱气动连通，用于可释放地连接到止血带仪器，以在膀胱和器械之间建立气密通道，其中袖带连接器包括指示身体特征的识别装置， 止血带仪器在建立气密通道时。 气囊可以通过首先将具有变化的厚度的外部条带沿着外部条带的侧面连接到内部条带上，然后通过间隔开预定长度的气密密封件将外部条带和内部条带连接在一起而形成。

公开(公告)号：WO2019244111A1

公开(公告)日：2019-12-26

申请号：PCT/IB2019/055233

申请日：2019-06-21

Applicant: WESTERN CLINICAL ENGINEERING LTD.

Inventor： MCEWEN, James Allen ,  JAMESON, Michael ,  LAI, Tom Yu Chia

IPC: A61B17/135 ,  A61B5/022

Abstract: A tourniquet apparatus comprises a cuff, a user interface, a controller, a protocol hazard key and a protocol safety interlock. The cuff encircles and applies a level of pressure to a limb of an individual patient. The user interface allows selection by a user of a protocol symbol from a plurality of protocol symbols. Each protocol symbol is indicative of a corresponding safety protocol that specifies a plurality of stored pressure levels associated with a plurality of stored times during a stored protocol time period. The user interface is further adapted to enable the user to adjust at least one pressure level of the plurality of stored pressure levels indicated by the selected protocol symbol within safe pressure limits associated with the selected protocol symbol. The controller is responsive to the plurality of stored pressure levels and the plurality of stored times specified by the safety protocol, after any adjustments by the user, and operable during the stored protocol time period for maintaining the level of pressure applied by the cuff to the individual patient near the plurality of stored pressure levels at the plurality of stored times. The protocol hazard key is adapted for manual actuation by the user to end the stored protocol time period at any time while the controller is operable if a hazard to the individual patient is perceived by the user. The protocol safety interlock is adapted to prevent selection of a second protocol symbol by the user while the controller is operable.

公开(公告)号：WO2016004519A1

公开(公告)日：2016-01-14

申请号：PCT/CA2015/050385

申请日：2015-05-04

Applicant: WESTERN CLINICAL ENGINEERING LTD.

Inventor： MCEWEN, James A. ,  JAMESON, Michael ,  JEYASURYA, Jeswin ,  GLINZ, Kenneth L.

IPC: A61B17/135 ,  A61B17/132

CPC classification number: A61B17/1355 ,  A61B5/022 ,  A61B5/02233 ,  A61B17/132 ,  A61B17/1322 ,  A61B17/135 ,  A61B90/92 ,  A61B90/98 ,  A61B2017/00017 ,  A61B2017/00022 ,  A61B2017/00119 ,  A61B2017/00199 ,  A61B2090/0807 ,  A61B2505/05

Abstract: Disclosed is a method and apparatus for regulating tourniquet cuff pressure based on a personalized tourniquet pressure (PTP) to facilitate safe performance of a surgical procedure. The apparatus includes a dual-purpose tourniquet cuff adapted to encircle a region of a patient limb to provide both a sensor during a pre-surgical time period and an effector during a surgical time period. An effector module communicates pneumatically with an inflatable bladder of the cuff for maintaining pressure in the bladder near a PTP during the surgical time period to safely stop penetration of arterial blood past the cuff. A pulsation sensor that communicates pneumatically with the inflatable bladder during the pre-surgical time period senses and characterizes pressure pulsations that are indicative of penetration of arterial blood into the region of the limb encircled by the cuff. A PTP estimator is responsive to the pulsation sensor for producing an estimate of the PTP, such that the estimate of the PTP is a function of the sensed pulsations.

Abstract translation: 公开了一种用于基于个性化止血带压力（PTP）来调节止血带袖带压力以促进外科手术的安全性能的方法和装置。 该装置包括适用于环绕患者肢体区域的双重目的的止血带，以在手术时期期间提供传感器，并在手术时间段内提供效应器。 效应器模块与袖带的可充气膀胱气动连通，以在手术时间段期间保持靠近PTP的膀胱中的压力，以安全地阻止动脉血穿过袖带。 在手术前时间段期间与气囊连通的脉动传感器感测和表征压力脉动，其指示动脉血穿过由袖带围绕的肢体的区域。 PTP估计器响应于脉动传感器以产生PTP的估计，使得PTP的估计是所感测的脉动的函数。

公开(公告)号：WO2012009787A1

公开(公告)日：2012-01-26

申请号：PCT/CA2011/000782

申请日：2011-07-04

Applicant: WESTERN CLINICAL ENGINEERING LTD. ,  MCEWEN, James, A. ,  JAMESON, Michael

Inventor： MCEWEN, James, A. ,  JAMESON, Michael

IPC: A61B17/135

CPC classification number: A61B17/1355 ,  A61B2017/00123 ,  A61B2017/00132 ,  A61B2017/00199 ,  A61B2017/00212 ,  A61B2017/00221

Abstract: A tourniquet hazard suppressor suppresses an action initiated by a user of a surgical tourniquet system having a touchscreen user interface if implementation of that action by the system may be hazardous to a surgical patient.

Abstract translation: 止血带危害抑制器抑制由具有触摸屏用户界面的手术止血带系统的用户发起的动作，如果该系统的该动作的实施可能对外科患者有危害。

公开(公告)号：WO2010091502A1

公开(公告)日：2010-08-19

申请号：PCT/CA2010/000176

申请日：2010-02-08

Applicant: WESTERN CLINICAL ENGINEERING LTD. ,  MCEWEN, James, A. ,  JAMESON, Michael ,  GEBERT, Michael A. ,  CHEUNG, William K., W.

Inventor： MCEWEN, James, A. ,  JAMESON, Michael ,  GEBERT, Michael A. ,  CHEUNG, William K., W.

IPC: A61B17/132 ,  G01M3/26

CPC classification number: A61B17/1355 ,  A61B2017/00119 ,  A61B2017/00132 ,  A61B2017/00199 ,  A61B2090/064 ,  A61B2090/0809

Abstract: An apparatus for estimating the magnitude of leakage of pressurized gas from a surgical tourniquet system comprising an inflatable tourniquet cuff (2) a pressure regulator ( 36) and a leak detector ( 38). The inflatable tourniquet cuff (2) has pneumatic tubing ( 10) for connecting the cuff (2) to the pressure regulator assembly ( 36) thereby establishing a gas passageway between the cuff (2) and the pressure regulator assembly ( 36). The pressure regulator assembly ( 36) is operable to direct pressurized gas to and from the cuff (2) and passageway to maintain pressure in the cuff (2) within a reference pressure level range during a time period. The leak detector ( 38) estimates the magnitude of leakage of pressurized gas from the cuff (2) or passageway by monitoring a level of a parameter of operation of the pressure regulator assembly ( 36) that is indicative of a rate of flow of pressurized gas to the cuff (2) and passageway during the time period.

Abstract translation: 一种用于估计来自包括充气止血带箍（2）压力调节器（36）和泄漏检测器（38）的手术止血带系统的加压气体的泄漏大小的装置。 充气止血带（2）具有用于将袖带（2）连接到压力调节器组件（36）的气动管（10），从而在袖带（2）和压力调节器组件（36）之间建立气体通道。 压力调节器组件（36）可操作以将加压气体引导到袖带（2）和通道，以在一段时间内将袖带（2）中的压力保持在参考压力水平范围内。 泄漏检测器（38）通过监测压力调节器组件（36）的操作参数的水平来估计来自袖带（2）或通道的加压气体的泄漏的大小，其指示加压气体的流量的速率 在袖带（2）和通道期间。

公开(公告)号：WO2019123025A1

公开(公告)日：2019-06-27

申请号：PCT/IB2018/053498

申请日：2018-05-17

Applicant: WESTERN CLINICAL ENGINEERING LTD.

Inventor： MCEWEN, James A. ,  JAMESON, Michael ,  GLINZ, Kenneth L. ,  LAI, Tom Yu Chia

IPC: A61B17/135 ,  A61B17/132

Abstract: A tourniquet cuff apparatus is provided comprising an inner sheet joined to an outer sheet to form an inflatable cuff. The outer sheet consists of a material having a fastening surface. An elongated, securing strap (20, 22) attached near a first end of the cuff, is formed to curve around and conform to the shape of a limb to which the cuff is applied, the strap including a second fastener component that can releasably engage the outer fastening surface thereby to enable engagement of the second fastener component on the strap with the outer fastening surface. An engagement barrier (50) is applied to cover a region of the outer fastening surface between a distal side edge and a proximal side edge near a second end of the cuff and prevents engagement of the securing strap to a first fastener component within the region of the outer fastening surface covered by the engagement barrier, wherein the engagement barrier has a barrier shape matching the first fastener component within the region. The engagement barrier (50) further provides a visible indication of contact with a fluid such as blood or a cleaning liquid.