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Class 604/152 - Reciprocating piston type


Subclass of Class 604 - Surgery
Definition: Subject matter wherein the pump is a piston or ram slidable
No. of patents: 233
Last issue date: 05/29/2012


1            
NumberTitleIssue Date
8187228Infusion pumps and methods and delivery devices and methods with same
A delivery device includes a durable housing portion and a separable disposable portion that selectively engage and disengage from each other. The disposable housing portion secures to the patient-user and may be disposed of after it has been in use for a prescribed...
05/29/2012
8172800Device and method employing shape memory alloy
A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is drive...
05/08/2012
8172799Volumetric pump
In one embodiment, a volumetric pump in a medical fluid delivery system comprises at least one piston in a hollow cylinder, the pump having at least one inlet port through which a medical fluid can be sucked into a pump chamber during an instroke of said piston, and...
05/08/2012
8142399Pump set with safety interlock
A safety interlock for use in a medical device includes a central tubular portion defining a fluid passage for passing fluid through the safety interlock. An outer ring portion is adapted for mounting on the medical device. The outer ring portion is formed of a ligh...
03/27/2012
8088106System and method for pumping intravenous fluid
An intravenous fluid pump (IV) contains a disposable part including a fluid chamber having a resilient top membrane and a non-disposable part including a piston abutting a resilient membrane and a vacuum chamber fitted on top of the resilient top membrane. An extern...
01/03/2012
8057437Radially sealing vavle for an infusion set
A radially sealing valve for preventing free flow from an IV set has an elastomeric cup portion that covers an outlet opening and is normally closed by its resiliency. The valve can be incorporated into a cassette for an IV pump that automatically opens the valve wh...
11/15/2011
RE42804Injector systems and syringe adapters for use therewith
An adapter includes a syringe carrier adapted to seat at least a portion of the syringe. The syringe carrier includes at least one rearward facing abutmer member to abut at least one forward facing surface on a syringe. The syringe carrie includes an opening therein...
10/04/2011
7981084Operating an infusion pump system
Some embodiments of a medical infusion pump system include a pump device and a removable controller device. When the pump device and the removable controller device are removably attached to one another, the components may provide a portable infusion pump unit to di...
07/19/2011
7959606Device and method employing shape memory alloy
A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is drive...
06/14/2011
7927307Hypodermic injection system
The invention relates to a hypodermic injection system having a direct-drive motor for moving a ram towards an injectate chamber for discharging injectate therein through a discharge orifice. The system can have an injection head attached to a housing having an inje...
04/19/2011
7905861Injection system having readable information stores and method for controlling the operation thereof
An injection system includes a fluid delivery system, a drive mechanism, a controller and a tubing set. The fluid delivery system includes a fluid container and a pumping mechanism having an inlet in fluid connection with the fluid container and an outlet. The tubin...
03/15/2011
7794429Controlling plunger drives for fluid injections in animals
A computer-controlled injector of the type having a motor which advances and retracts a plunger located within a syringe housing toward and away from a nozzle located in the front of the syringe to inject fluid into or out of an animal subject. Manual motion is indu...
09/14/2010
7794428Operating an infusion pump system
Some embodiments of a medical infusion pump system include a pump device and a removable controller device. When the pump device and the removable controller device are removably attached to one another, the components may provide a portable infusion pump unit to di...
09/14/2010
7785293Infusion device and driving mechanism for same
A drive mechanism for delivery of infusion medium has a coil and an armature moveable toward a forward position, in response to the electromagnetic field produced by activation of the coil. A piston is moveable axially within a piston channel to a forward position, ...
08/31/2010
7771392Lead screw delivery device using reusable shape memory actuator drive
A drug delivery device drive that includes a single shape memory alloy wire actuator to advance a lead screw via a ratcheting mechanism and method thereof are disclosed. In one embodiment, a shape memory alloy wire is operably connected to one of a pair of ratchet w...
08/10/2010
7563249Syringe having an alignment flange, an extending lip and a radial expansion section of reduced wall thickness
A syringe includes a body having a distal end, a proximal end and a center section therebetween. The distal end of the syringe body includes a conical portion that extends and tapers from the center section to an injection neck forming a discharge outlet. The proxim...
07/21/2009
7497843Syringe interfaces, syringe adapters and injector systems
A syringe interface is provided for attaching a syringe to an injector. The syringe includes, a first and second set of generally opposing, radially outward projecting mounting flanges, and a second set of flanges offset from the first set of mounting flanges. The s...
03/03/2009
7455659Liquid injection system with piston adapter operable into and out of engagement with piston of rodless syringe
A piston adapter has a flange holding mechanism mounted on a distal end thereof for releasably holding a piston flange of a piston of a rodless syringe, a manual operating member disposed on a tip end of the piston adapter for being manually operated, and an interli...
11/25/2008
7442186Syringe pump control systems using a light sensor
Sensors are described that may be provided in a medication pump. A light sensor may be provided that detects if a cartridge is present in a cartridge chamber. A medication cartridge includes an opaque area at its open end for use with the light sensor. ...
10/28/2008
7396353Infusion device and driving mechanism for same
A drive mechanism for delivery of infusion medium a coil capable of being electrically activated to provide an electromagnetic field. The coil surrounds a piston channel extending in an axial direction. The piston channel provides a passage for communication of infu...
07/08/2008
7371228Delivery of therapeutics to treat aneurysms
A method and device for the treatment of an aneurysm are provided. Different therapeutic agents are delivered to the aneurysmal site by a reservoir and delivery means in a localized, and, in some embodiments, time-released regimen, to treat, limit and reduce the sev...
05/13/2008
7363072Method and apparatus to remove substances from vessels of the heart and other parts of the body to minimize or avoid renal or other harm or dysfunction
To accomplish isolation and removal of a substance from a vasculature, a catheter is employed to occlude a vessel of the vasculature. The substance is thus isolated in the vasculature and can be removed. In this way, the substance is removed before entering other pa...
04/22/2008
7361156Pressure jacket system with pivotal locking members
The fluid injection apparatus for use with the syringe includes an injector and a pressure jacket assembly associated with the injector. The injector includes a housing defining a central opening and a drive piston extendable through the central opening for impartin...
04/22/2008
7351220Portable device for delivering medicaments and the like
Disclosed is a portable device for delivering a medicament or the like into the body of a human or animal subject, the device comprising: a medicament compartment containing the medicament or the like to be delivered; delivery means comprising an orifice through whi...
04/01/2008
7347837Infusion pump for syringes
An infusion pump has a base and a holder for a syringe extending along a longitudinal axis and having an axially shiftable plunger. The holder is pivotal on the base about a first axis substantially perpendicular to the longitudinal axis of the syringe. A first actu...
03/25/2008
7338465Infusion device and method thereof
The disclosures made herein relate to an infusion device specifically adapted for syringe injections. In one embodiment of the disclosures made herein, an infusion device comprises a body including an accessible surface having a single inlet port therein, an engagem...
03/04/2008
7335186Patient controlled drug delivery device
A delivery device for patient-controlled infusion of a medicament, the delivery device comprising a reservoir for the medicament and a pump having a predetermined delivery dose which is capable of displacing the medicament from the reservoir and delivering it to a p...
02/26/2008
7291131Infusion syringe
A syringe configured for communication with a tubular member insertable into the body of a subject includes a pressure transducer integrally mounted in the plunger thereof, under a tip of the plunger, such that the force applied by the plunger to fluid within a barr...
11/06/2007
7288085Permanent magnet solenoid pump for an implantable therapeutic substance delivery device
A medical device known as an implantable therapeutic substance delivery device is configured for implanting in humans to deliver a therapeutic substance such as pharmaceutical compositions, genetic materials, and biologics to treat a variety of medical conditions su...
10/30/2007
7284474Piston-pumping system having o-ring seal properties
The present invention relates to a piston pumping system for substantially gas-free measurement and/or pumping of predetermined quantities of liquids, preferably pharmaceutical liquids containing oxidation-prone ingredients. Preferably, the system is used as a micro...
10/23/2007
7273477Syringe interfaces and syringe adapters for use with medical injectors
A syringe interface or adapter includes a first retaining member that pivots about an axis generally perpendicular to and offset from the axis of an injector piston when the syringe interface is attached to the injector. The first retaining member pivots in a rearwa...
09/25/2007
7255690Infusion device having piston operated driving mechanism and positive pressure reservoir
A piston-type drive mechanism in combination with a positive pressure reservoir for delivery of infusion medium. A coil capable of being electrically activated to provide an electromagnetic field. The coil surrounds a piston channel extending in an axial direction. ...
08/14/2007
7246551Liquid handling device with surface features at a seal
A sample handling tool includes a body having at least one plunger associated with a channel and arranged for axial movement within the channel. A seal is provided in the channel and sealingly engaged with a contact surface. The contact surface may include a surface...
07/24/2007
7204823Medication delivery system and monitor
Systems and methods for the delivery and monitoring of a medication, such as insulin, to a recipient are provided. An exemplary feature-rich system comprises an infusion pump with a control system for controlling medication delivery by the infusion pump and a bolus ...
04/17/2007
7201746Implantable therapeutic substance delivery device having a piston pump with an anti-cavitation valve
A medical device known as an implantable therapeutic substance infusion device is configured for implanting in humans to deliver a therapeutic substance such as pharmaceutical compositions, genetic materials, and biologics to treat a variety of medical conditions su...
04/10/2007
7192416Front load pressure jacket system with grooved syringe holder
The fluid injection apparatus includes a syringe, an injector, and a pressure jacket. The syringe has a cylindrical body with an injection section at a distal end and a plurality of outward extending retaining flanges at a proximal end. The injector has an injector ...
03/20/2007
7179232Controlled orifice sampling needle
A bone marrow sampling device is provided, including an outer cannula having a sidewall with a plurality of openings and a distal tissue penetrating tip. An inner cannula is positioned within the outer cannula, and includes a sidewall with at least one opening. Sele...
02/20/2007
7172579System and method for irrigation and tissue evacuation and collection
The present invention provides a system and method for irrigating and collecting tissue from a body cavity in a patient. The system includes an irrigation and collection device for injecting an irrigation fluid into the body cavity. The irrigation device injects flu...
02/06/2007
7150741Programmable dose control module
The invention is directed to a dose control module for manipulating the dosage of one or more pharmaceutical solutions emanating from an implantable drug infusion pump. The dose control module has a processor and other circuitry for manipulating flow valves and othe...
12/19/2006
7150724Syringe plunger driver system
A syringe plunger driver system capable of capturing syringes of widely varying sizes comprises a pair of asymmetric plunger retainer arms pivotally mounted to a plunger driver. The system includes a low profile driver having a length that exceeds its width so that ...
12/19/2006
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