Continuous multi-fluid pump device, drive and actuating system and method

• US 9,700,672 B2
• Filed: 09/20/2012
• Issued: 07/11/2017
• Est. Priority Date: 09/21/2011
• Status: Expired due to Fees

• Current Assignee: Bayer Healthcare LLC (Bayer AG)
• Original Assignee: Bayer Healthcare LLC (Bayer AG)
• Inventors: Bazala, Jason L., Haury, John A., Heller, Ronald, Capone, Christopher D., Seman, Richard A., Prem, Edward K.
• Primary Examiner(s): Bouchelle, Laura
• Assistant Examiner(s): BUI, ANH T
• Application Number:
  US14/346,064
• Publication Number:
  US 20140228762A1
• Time in Patent Office: 1,755 Days
• CPC Class Codes: A61M 2039/229 Stopcocks
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/6063 Optical identification systems
• CPC Class Codes: A61M 2207/00 Methods of manufacture, assembly or production
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1408 in parallel, e.g. manifolds, sequencing valves access sites A61M39/02; tube connectors A61M39/10
• CPC Class Codes: A61M 5/1422 with double acting or multiple pistons
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• CPC Class Codes: A61M 5/16881 Regulating valves on-off valves, e.g. clamps A61M39/28
• CPC Class Codes: B05B 11/1015 actuated without substantial movement of the nozzle in the direction of the pressure stroke B05B11/1011 takes precedence
• CPC Class Codes: B23P 15/001 valves or valve housings welding B23K; valve housings per se F16K
• CPC Class Codes: F04B 49/06 Control using electricity regulating by means of floats actuating electric switches F04B49/04
• CPC Class Codes: F04B 49/065 and making use of computers
• CPC Class Codes: F04B 49/22 by means of valves F04B49/03 takes precedence
• CPC Class Codes: F04B 53/16 Casings; Cylinders; Cylinder liners or heads; Fluid connections
• CPC Class Codes: F16K 11/07 with cylindrical slides
• CPC Class Codes: G05D 7/0635 by action on throttling means G05D7/0688, G05D7/0694 take precedence
• CPC Class Codes: Y10T 137/86879 Reciprocating valve unit
• CPC Class Codes: Y10T 29/49229 Prime mover or fluid pump making
• CPC Class Codes: Y10T 29/49236 : Fluid pump or compressor making
• CPC Class Codes: Y10T 29/49412 : with assembly, disassembly or composite article making
• CPC Class Codes: Y10T 29/5191 : Assembly

Abstract

A selector valve for a medical fluid delivery device is disclosed. The valve includes a valve bore in fluid communication with an outlet channel, first and second outlet ports, and a selector valve body which includes a valve stem located within the valve bore and having a flow passage. The selector valve body is adapted to place the flow passage in fluid communication with one of the first outlet port, the second outlet port, and a shut-off position. Further, the selector valve body includes a sealing arrangement having an elastomeric core disposed within a thin-walled valve stem which comprises a thin cylindrical sidewall in direct contact with the valve bore. When the elastomeric core and the valve stem are subjected to internal fluid pressure, the thin cylindrical sidewall of the valve stem expands outward to increase a sealing force between an outer diameter of the valve stem and the valve bore.

Claims

1. A selector valve for a medical fluid delivery device, the selector valve comprising:

a valve bore in fluid communication with an outlet channel;

a first outlet port;

a second outlet port; and

a selector valve body comprising a valve stem located within the valve bore and having a flow passage, wherein the selector valve body is adapted to place the flow passage in fluid communication with one of the first outlet port, the second outlet port, and a shut-off position,

wherein the selector valve body comprises a sealing arrangement having an elastomeric core disposed within a thin-walled valve stem, wherein the thin-walled valve stem comprises a thin cylindrical sidewall in direct contact with the valve bore, and

wherein, when the elastomeric core and the valve stem are subjected to internal fluid pressure, the thin cylindrical sidewall of the valve stem expands outward to increase a sealing force between an outer diameter of the valve stem and the valve bore.

2. The selector valve of claim 1, wherein the first outlet port is a patient outlet port in fluid communication with a patient fluid supply set and the second outlet port is a waste outlet port in fluid connection with a waste receptacle.

3. The selector valve of claim 1, further comprising an actuator interface head adapted to interface with a valve actuator associated with a drive and actuating system.

4. The selector valve of claim 3, wherein the valve actuator controls operation of the selector valve body.

5. The selector valve of claim 1, further comprising a proximal pressure sensing port comprising a pressure sensing diaphragm.

6. The selector valve of claim 1, wherein the thin cylindrical sidewall of the valve stem defines an aperture connected to an outlet port and the elastomeric core defines the flow passage to direct fluid to the outlet port.