公开(公告)号：CA3129437A1

公开(公告)日：2013-06-27

申请号：CA3129437

申请日：2012-12-21

Applicant: DEKA PRODUCTS LP

Inventor： KAMEN DEAN ,  KERWIN JOHN M ,  GRAY LARRY B ,  LANGENFELD CHRISTOPHER C ,  SLATE MICHAEL J ,  PLACE MICHAEL S ,  LANIER GREGORY R ,  PERET BOB D ,  KANE DEREK G ,  DURAND KEVIN A ,  SMITH STANLEY B ,  MURPHY COLIN H ,  SCARPACI JACOB W ,  LANIGAN RICHARD J ,  BLUMBERG DAVID ,  TRACEY BRIAN D ,  DEMERS JASON A ,  BEAVIS RUSSELL H ,  CANNAN DAVID D B ,  PERRY N CHRISTOPHER ,  MANDRO MARC A ,  YOO BRIAN H

IPC: A61M5/142 ,  A61M5/145 ,  A61M5/168

Abstract: A peristaltic pump and related system and method are disclosed. The peristaltic pump includes a plunger configured to actuate toward and away from a tube, a cam follower coupled to the plunger, a compression spring biasing the plunger toward the tube, a cam configured to actuate the plunger away from the tube and configured to mechanically disengage from the cam follower; a position sensor configured to determine a position of the plunger; and a processor coupled to the position sensor, configured to estimate fluid flow of fluid within the tube utilizing the position of the plunger as indicated by the position sensor.

公开(公告)号：CA2832035A1

公开(公告)日：2012-10-18

申请号：CA2832035

申请日：2011-06-22

Applicant: DEKA PRODUCTS LP

Inventor： VAN DER MERWE DIRK ALBERTUS ,  LANIER GREGORY RANDALL JR ,  KERWIN JOHN MATTHEW ,  GUAY GERALD MICHAEL ,  PERRY N CHRISTOPHER ,  DASTOUS SUSAN D

IPC: A61F2/68

Abstract: A control system (10) for control of a prosthetic device (12) having a plurality of actuators (13) receives an orientation signal indicative of a desired movement. The control system evaluates whether the prosthetic device may move as desired with a current angle of rotation and commands at least one actuator to move the prosthetic device as desired by maintaining the current angle of rotation or by adjusting the angle of rotation if the prosthetic device cannot move as desired with the current angle. The control system may alternate between commanding a first subset of actuators and a second subset of actuators each time the orientation signal is indicative of a neutral position. The control system may include a position sensor and a compliance sensor and may command at least one actuator based on a combination of positional control using the position sensor and force control using the compliance sensor.

公开(公告)号：CA2814486A1

公开(公告)日：2012-03-22

申请号：CA2814486

申请日：2011-06-22

Applicant: DEKA PRODUCTS LP

Inventor： EVANS CHRISTOPHER O ,  PERRY N CHRISTOPHER ,  VAN DER MERWE DIRK A ,  VIOLETTE KEITH D ,  COULTER STEWART M ,  DOYON THOMAS A ,  BLUMBERG DAVID JR

IPC: A61F2/54 ,  A61F2/00 ,  A61F2/50 ,  A61F2/58 ,  A61F2/68 ,  A61F2/70 ,  A61F2/74 ,  A61F2/76 ,  A61F2/78 ,  B25J17/02 ,  F16D3/38

Abstract: A prosthetic arm apparatus including a plurality of segments that provide a user of the prosthetic arm apparatus with substantially the same movement capability and function as a human arm. The segments are connectable to one another and connectable to a prosthetic support apparatus that may be adorned by the user. Some segments may provide movement about more than one axis using a single actuator. The prosthetic arm apparatus may include a user interface incorporated therein and may include one or more communication systems for communicating with external devices.

公开(公告)号：CA2703540A1

公开(公告)日：2009-04-16

申请号：CA2703540

申请日：2008-10-10

Applicant: DEKA PRODUCTS LP

Inventor： DEMERS JASON A ,  GRAY LARRY B ,  DALE JAMES D ,  PERRY N CHRISTOPHER ,  ALTOBELLI DAVID E

IPC: A61M1/10 ,  A61M1/16

Abstract: A cardiopulmonary bypass system utilizing membrane-based reciprocating positive displacement blood pumps (8300,8400) ('pod pumps'). In one aspect, the pod pumps are constructed to provide reduced shear forces on the blood being pumped. In another aspect blood flow through the pod pumps can be controlled by a controller using information from pressure sensors in the control chamber of the pod pumps. In another aspect, the pod pumps are included on a disposable unit that can be received and held by a receptacle means on a base unit, the base unit also providing pressurized control fluid to the pod pumps on the disposable unit through the receptacle means.

公开(公告)号：CA3123166A1

公开(公告)日：2007-10-25

申请号：CA3123166

申请日：2007-04-13

Applicant: DEKA PRODUCTS LP

Inventor： KAMEN DEAN ,  DEMERS JASON A ,  ALTOBELLI DAVID E ,  GRAY LARRY B ,  PERRY N CHRISTOPHER ,  TRACEY BRIAN ,  DALE JAMES D ,  VAN DER MERWE DIRK A ,  OWENS KINGSTON ,  WILT MICHAEL J ,  LEONARD SCOTT A

IPC: A61M60/109 ,  A61M1/36 ,  F04B43/02 ,  F04B43/06 ,  F04B43/073 ,  F04B43/12

Abstract: A reciprocating positive displacement pumping system has a rigid chamber wall to which a flexible membrane is attached defining a pumping chamber. An inlet and outlet allow liquid flow. A rigid limit structure limits the movement of the membrane and the maximum volume of the pumping chamber defining an actuation chamber. An actuation port through which a fluid under positive or negative pressure can communicate with the actuation chamber is configured to connect to a positive pressure fluid reservoir and a negative pressure fluid reservoir through a valving mechanism for controlling the flow of control fluid between the actuation chamber and each of the reservoirs. An actuation chamber pressure transducer measures the pressure of the actuation chamber and a controller integrates pressure information from the actuation chamber pressure transducer over time during a stroke to detect an aberrant liquid flow condition.