公开(公告)号：US11821416B2

公开(公告)日：2023-11-21

申请号：US17586610

申请日：2022-01-27

Applicant: CareFusion 303, Inc.

Inventor： Frank Cai ,  Lun Zhang ,  Derek Alan Carroll ,  Siddarth Shevgoor

IPC: F04B43/12 ,  F04B49/06 ,  A61M5/142

CPC classification number: F04B43/1223 ,  F04B49/06 ,  A61M5/14228

Abstract: Peristaltic pumps are described herein. In certain embodiments, a peristaltic pump includes a plunger and a feeler pin. The plunger is movable to selectively engage a pumping volume of a tubing segment to expand the pumping volume to draw fluid flow into the pumping volume and to contract the pumping volume to conduct fluid flow from the pumping volume. The feeler pin extends through the plunger and movable to maintain contact with the tubing segment, wherein the feeler pin is movable in response to a height of the pumping volume.

公开(公告)号：US20240044324A1

公开(公告)日：2024-02-08

申请号：US18490113

申请日：2023-10-19

Applicant: CareFusion 303, Inc.

Inventor： Frank Cai ,  Lun Zhang ,  Derek Alan Carroll ,  Siddarth Shevgoor

IPC: F04B43/12 ,  F04B49/06

CPC classification number: F04B43/1223 ,  F04B49/06 ,  A61M5/14228

Abstract: Peristaltic pumps are described herein. In certain embodiments, a peristaltic pump includes a plunger and a feeler pin. The plunger is movable to selectively engage a pumping volume of a tubing segment to expand the pumping volume to draw fluid flow into the pumping volume and to contract the pumping volume to conduct fluid flow from the pumping volume. The feeler pin extends through the plunger and movable to maintain contact with the tubing segment, wherein the feeler pin is movable in response to a height of the pumping volume.

公开(公告)号：US20220235755A1

公开(公告)日：2022-07-28

申请号：US17586619

申请日：2022-01-27

Applicant: CareFusion 303, Inc.

Inventor： Frank Cai ,  Lun Zhang ,  Siddarth Shevgoor ,  Derek Alan Carroll

IPC: F04B43/12 ,  F04B53/00 ,  A61M5/142

Abstract: Peristaltic pumps are described herein. In certain embodiments, a peristaltic pump includes a plunger, a camshaft, and a first biasing member. The plunger is movable to selectively engage a pumping volume of a tubing segment. The camshaft includes a first plunger cam lobe. The first plunger cam lobe is configured to move the plunger between an engaged position in contact with the pumping volume and a disengaged position spaced apart from the pumping volume. The first biasing member is configured to urge the plunger toward the tubing segment to maintain contact with the tubing segment in the engaged position.

公开(公告)号：US20220233763A1

公开(公告)日：2022-07-28

申请号：US17586602

申请日：2022-01-27

Applicant: CareFusion 303, Inc.

Inventor： Lun Zhang ,  Frank Cai ,  Derek Alan Carroll ,  Siddarth Shevgoor

IPC: A61M5/142 ,  F04B43/12 ,  A61M5/168

Abstract: Peristaltic pumps are described herein. In certain embodiments, a peristaltic pump includes a plunger, a first biasing member, and a second biasing member. The plunger is movable to selectively engage a pumping volume of a tubing segment to expand the pumping volume to draw fluid flow into the pumping volume and to contract the pumping volume to conduct fluid flow from the pumping volume. The first biasing member is configured to urge the plunger toward the tubing segment to maintain contact with the tubing segment during the expansion of the pumping volume. The second biasing member is configured to urge the plunger toward the tubing segment to contract the pumping volume.

公开(公告)号：US12228123B2

公开(公告)日：2025-02-18

申请号：US18490113

申请日：2023-10-19

Applicant: CareFusion 303, Inc.

Inventor： Frank Cai ,  Lun Zhang ,  Derek Alan Carroll ,  Siddarth Shevgoor

IPC: F04B43/12 ,  F04B49/06 ,  A61M5/142

Abstract: Peristaltic pumps are described herein. In certain embodiments, a peristaltic pump includes a plunger and a feeler pin. The plunger is movable to selectively engage a pumping volume of a tubing segment to expand the pumping volume to draw fluid flow into the pumping volume and to contract the pumping volume to conduct fluid flow from the pumping volume. The feeler pin extends through the plunger and movable to maintain contact with the tubing segment, wherein the feeler pin is movable in response to a height of the pumping volume.

公开(公告)号：US20220235756A1

公开(公告)日：2022-07-28

申请号：US17586610

申请日：2022-01-27

Applicant: CareFusion 303, Inc.

Inventor： Frank Cai ,  Lun Zhang ,  Derek Alan Carroll ,  Siddarth Shevgoor

IPC: F04B43/12 ,  F04B49/06

Abstract: Peristaltic pumps are described herein. In certain embodiments, a peristaltic pump includes a plunger and a feeler pin. The plunger is movable to selectively engage a pumping volume of a tubing segment to expand the pumping volume to draw fluid flow into the pumping volume and to contract the pumping volume to conduct fluid flow from the pumping volume. The feeler pin extends through the plunger and movable to maintain contact with the tubing segment, wherein the feeler pin is movable in response to a height of the pumping volume.