公开(公告)号：NZ756276A

公开(公告)日：2021-02-26

申请号：NZ75627612

申请日：2012-12-21

Applicant: DEKA PRODUCTS LP

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

IPC: F04B43/12 ,  A61M1/28 ,  A61M5/142 ,  A61M5/145 ,  A61M5/168

Abstract: A peristaltic pump is disclosed. The peristaltic pump comprises a plunger configured to engage with a tube; a spring configured to bias the plunger against the tube; a position sensor operatively coupled to the plunger; an inlet valve configured to impede fluid flow through the tube positioned upstream of the plunger; an outlet valve configured to impede fluid flow through the tube positioned downstream of the plunger; and at least one processor in operative communication with the position sensor. The position sensor is configured to determine a position of the plunger. The at least one processor is configured to monitor the position of the plunger when the inlet and outlet valves are closed and the plunger is being biased by the spring, and determine at least one of an occlusion, an air bubble, and a leak exists in accordance with the monitored position of the plunger.

公开(公告)号：NZ772801A

公开(公告)日：2022-08-26

申请号：NZ77280112

申请日：2012-12-21

Applicant: DEKA PRODUCTS LP

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

IPC: F04B43/12 ,  A61M1/28 ,  A61M5/142 ,  A61M5/145 ,  A61M5/168

Abstract: A peristaltic pump is disclosed. The peristaltic pump comprises a tube platen; and a plunger (see 3091, figure 277) configured to actuate toward the tube platen (3022). An end of the plunger has a rounded end and a bottom of the tube platen has a generally U shape that provides a radial gap between the plunger and the tube platen about equal to two to three times a wall thickness of an infusion tube. The rounded shapes of the plunger tip and tube platen avoid compressing the walls of the infusion line (3210), thereby reducing the compressive load on the plunger (see also paragraph [00943]).

公开(公告)号：NZ739792A

公开(公告)日：2019-08-30

申请号：NZ73979212

申请日：2012-12-21

Applicant: DEKA PRODUCTS LP

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

IPC: F04B43/12 ,  A61M1/28 ,  A61M5/142 ,  A61M5/145 ,  A61M5/168

Abstract: A peristaltic pump and a method of operating an infusion pump are disclosed. The peristaltic pump comprises, a pump housing, a door pivotally coupled to the pump housing having a platen disposed on an inner portion of the door, a cam-follower shaft disposed within the housing, a cam shaft disposed approximately parallel with the cam-follower shaft, a first cam disposed on the cam shaft to rotate with the cam shaft, a first cam follower pivotally coupled to the cam-follower shaft, the first cam follower having an active end configured to actuate toward the door when closed against the housing, the first cam follower also having a follower end configured to engage with the first cam, a second cam disposed on the cam shaft to rotate with the cam shaft, a second cam follower pivotally coupled to the cam-follower shaft, the second cam follower having an active end configured to actuate toward the door when closed against the housing, the second cam follower also having a follower end configured to engage with the second cam, a third cam disposed on the cam shaft to rotate with the cam shaft, wherein the third cam is disposed between the first and second cams on the cam shaft, a third cam follower pivotally coupled to the cam-follower shaft, the third cam follower having an elongated active end which is elongated relative to at least one of the first and second cam follower active ends and configured to actuate toward the platen when the door is closed against the housing, the third cam follower also having a follower end configured to engage with the third cam, and a spring coupled to the third cam follower to bias the follower of the third cam follower against the third cam. The third cam follower and third cam are configured such that as the elongated active end actuates away from the platen, the third cam actuates the third cam follower away from the cam shaft.