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公开(公告)号：US20240110551A1
公开(公告)日：2024-04-04
申请号：US18274651
申请日：2022-01-28
Applicant: Becton, Dickinson and Company
Inventor： Alessandro E. PIZZOCHERO , Mark WOOD
CPC classification number: F04B9/047 , A61M5/14248 , A61M5/1452 , F04B19/22 , F04B23/025 , F04B53/143 , A61M2205/50
Abstract: A hard seal, positive displacement pump is provided which may be included within a fluid delivery system. The pump includes a housing, a sleeve disposed radially within the housing, and a piston disposed radially within the sleeve. An outer shape of a first end of the sleeve contacts a correspondingly-shaped inner shape of a first end of the housing, thereby sealing the first end of the sleeve within the first end of the housing. The piston is radially and axially moveable within the sleeve, and an axially-reciprocating motion of the piston within the sleeve opens and closes a pump chamber defined between a first end of the piston and a first end of the sleeve.
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公开(公告)号：US20220054739A1
公开(公告)日：2022-02-24
申请号：US17401871
申请日：2021-08-13
Applicant: Becton, Dickinson and Company
Inventor： Alessandro PIZZOCHERO , Mark WOOD , Muzaffer Yalgin OZSECEN , Timothy BLUM , Eric HASSENPFLUG , Cory BAKER , Jeffrey HELD
Abstract: A fluid delivery device has a syringe barrel-type reservoir with plunger, and plunger driver assembly comprising double-acting, telescoping lead screws that is located behind and outside of the barrel. Simultaneously and counter-rotating sleeve screw and center screw telescope out of a nested configuration of the plunger driver assembly and into the reservoir at a rate of double their individual and equal pitch and lead parameters when the sleeve screw is rotated. A threaded nut and gear anchor disposed on an end of the barrel receive the sleeve screw and the threaded nut causes the sleeve screw to translate and rotate in response to motor operation. A distal end of the center screw can be keyed to a plunger pusher for anti-rotation constraint when the motor is imparting rotation on the threaded nut and sleeve screw.
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公开(公告)号：US20250161574A1
公开(公告)日：2025-05-22
申请号：US18835177
申请日：2023-01-31
Applicant: Becton, Dickinson and Company
Inventor： Alessandro PIZZOCHERO , Dana COTE , Mark WOOD , J. Richard GYORY
IPC: A61M5/315
Abstract: The disclosure provides driver components and methods of operating same that provide a reduced form factor for pen-type injection devices. In particular, various multi-piece telescoping plunger rod configurations are disclosed that can be implemented within pen-type injection devices to achieve such improvements. Driver components replace a single plunger rod having fixed length with telescoping pieces that are controlled to at least partially extend axially to dispense fluid from the reservoir or cartridge.
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公开(公告)号：US20230366386A1
公开(公告)日：2023-11-16
申请号：US18029547
申请日：2021-09-29
Applicant: Becton, Dickinson and Company
Inventor： Russell COLE , Dan NOLAN , Mark WOOD
CPC classification number: F04B13/00 , F04B17/03 , A61M5/14248 , A61M5/16831 , A61M5/14216
Abstract: A rotary pump for a fluid metering system is provided. The rotary pump reciprocates, and is reversed by a signal from a limit switch that is deflected by an actuator arm on a rotating sleeve of the pump system. The sleeve receives a gasket that forms a seal between the sleeve and the housing, the gasket having an opening surrounding a side hole of the sleeve to permit fluid to pass through the side hole between a pump volume and an inlet port or outlet port of the housing.
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