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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
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.
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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
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.
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Patent Agency Ranking
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
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.
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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
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.
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公开(公告)号：US12208233B2
公开(公告)日：2025-01-28
申请号：US17341070
申请日：2021-06-07
Applicant: CareFusion 303, Inc.
Inventor： Frank Cai , Jason Andrew Wine
Abstract: A drip chamber insert may include an elongate body portion comprising an upper surface, and a base portion positioned downstream of the elongate body portion for coupling to a drip chamber. The base portion may have an upper surface and a lower surface defining an outlet orifice of the drip chamber insert. The drip chamber insert may further include a first chamber and a second chamber. The first chamber may be disposed in the elongate body portion and fluidly coupled to the upper surface of the elongate body portion via an inlet orifice and to the outlet orifice via the base portion. An anti-run-dry membrane may be disposed on the upper surface of the elongate body portion extending over the inlet orifice. The second chamber may be disposed in the elongate body portion extending from the upper surface of the elongate body portion to the base portion. A low flowrate orifice may extend from a base of the second chamber into the base portion for fluidly coupling the second chamber with the outlet orifice.
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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
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.
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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
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.
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