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Class 604/141 - Material impelled by means (e.g., diaphragm, piston) moved by gas or vacuum pressure


Subclass of Class 604 - Surgery
Definition: Subject matter wherein the pressurized charge of gas or
No. of patents: 264
Last issue date: 05/29/2012


1              
NumberTitleIssue Date
8187227Self returning contamination barrier
A barrier of a vacuum pump prevents contamination from entering a vacuum pump air line. The barrier separates parts of the pump and is moveable between an initial state and a distended state. The barrier is assembled within the pump with a pre-load. When the vacuum ...
05/29/2012
8172797Medical delivery device
The present invention relates to an injection device comprising a housing, a container containing medicament to be injected through a needle (34) attachable to said container, drive means (46) operatively acting on said container for injecting said med...
05/08/2012
8105281Devices, systems and methods for medicament delivery
An apparatus includes a housing, a medicament container, an actuator, and a biasing member. The actuator is configured to move the medicament container within the housing when the actuator is moved from a first configuration to a second configuration. The actuator i...
01/31/2012
8066671Automated dialysis system including a piston and stepper motor
A peritoneal dialysis system includes a hardware unit including a piston having a contact surface and a stepper motor configured to move the piston; and a disposable unit received by the hardware unit, the disposable unit including a moveable membrane operable with ...
11/29/2011
7998117Drug delivery device
A drug delivery device having a housing containing a gas generator controlled by an electronic controller. The gas generator generates gas into a reciprocable chamber, whereby reciprocation of the chamber causes a lever to reciprocate a pawl, and this action causes ...
08/16/2011
7867198Medical liquid infusion apparatus
An object is to provide a medical liquid infusion apparatus suitable for a portable use and capable of suppressing an abrupt change in flow rate even when the environmental temperature rises. A medical liquid infusion apparatus 1 is provided with a driving po...
01/11/2011
7833196Illumination instrument for an infusion pump
Some embodiments of an infusion pump system may include an illumination instrument that provides the user with an opportunity to illuminate and inspect a targeted location. The illumination instrument can be useful in situations where the ambient lighting is insuffi...
11/16/2010
7824373Self-contained power-assisted syringe
A self-contained and hand-held power-assisted syringe is provided which is suitable for the controlled injection of fluid material during medical procedures such as coronary angiography procedures which utilize small-bore and small sized guide catheter systems. The ...
11/02/2010
7806867Injection device
An injection device includes a housing having a proximal end and a distal end, the housing defining a distal opening, and a first opening in a side of the housing and between the proximal and distal ends; a propellant disposed inside the housing and spaced from the ...
10/05/2010
7654983Pneumatic powered autoinjector
The present invention provides a pneumatic injector that includes a pressurized gas source, an actuator, a driver, and a dispenser. The dispenser of the injector includes a reservoir for containing a desired amount of a chosen medicament and a needle, such as a hypo...
02/02/2010
7421316Method and device for regulating fluid pump pressures
A method is provided for regulating fluid pump pressures by detecting an elevation differential between a fluid flow control device and the distal end of a fluid line in communication with the fluid flow control device. A fluid flow control device, for instance a pe...
09/02/2008
7384413Drug delivery device
A drug delivery device having a housing containing a gas generator controlled by an electronic controller. The gas generator generates gas into a reciprocable chamber, whereby reciprocation of the chamber causes a lever to reciprocate a pawl, and this action causes ...
06/10/2008
7371215Endoscopic instrument for engaging a device
A device, system and method for diagnosing and treating a patient is provided where a functional device is attached to a stomach wall. The device in one embodiment provides electrical stimulation of the stomach wall. The device may also have other functional aspects...
05/13/2008
7367480Drink supply canister having a self-closing pressurization valve operable to receive a pressurization pin
A drink supply canister for beverage dispensing apparatus for a residential refrigerator. The beverage dispensing apparatus includes a drink supplier including a drink supply canister holder for holding a plurality of the drink supply canisters, and a plurality of v...
05/06/2008
7367358Medical fluid delivery system and method relating to the same
A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted...
05/06/2008
7357792Positive push medical valve with internal seal
A medical valve having an open mode to permit fluid flow and a closed mode to prevent fluid flow has a body and a valving element within the interior of the body. The body also has a valving element within its interior, and a proximal port and a distal port. The val...
04/15/2008
7354190Two-stage mixing system, apparatus, and method
A two-stage mixing system, apparatus, and method produces a solution including a first substance and a second substance in a predetermined ratio by first mixing the first substance with a first liquid to produce a first solution and then mixing the first solution wi...
04/08/2008
7354391Implantable radiotherapy/brachytherapy radiation detecting apparatus and methods
An interstitial brachytherapy apparatus and method for delivering and monitoring radioactive emissions delivered to tissue surrounding a resected tissue cavity. The brachytherapy device including a catheter body member having a proximal end, a distal end, and an out...
04/08/2008
7351226Medical infusion pump
An infusion pump for infusing solutions from IV bags, particularly large one liter bags, through tubing to patients includes housing that has a compartment to receive an IV bag in a solution-dispensing position. The bag rests over a bladder within the compartment, a...
04/01/2008
7347828Suction adapter for medical instrument
A suction adapter for use with first and second medical devices capable of accommodating suction, the adapter including a manifold having at least three ports and a flexible flow valve. The ports may include: a suction port configured for connecting to a suction sou...
03/25/2008
7338433Remotely adjustable gastric banding method
A remotely controllable gastric banding device (10) for placement around the stomach of a patient for the treatment of obesity. The device (10) comprises a gastric band (10) having an inflatable chamber (16) for adjusting the inner circum...
03/04/2008
7337011System and method for enhancing cardiac signal sensing by cardiac pacemakers through genetic treatment
The present invention provides delivery systems for and methods of delivering ion channel protein genetic material to cardiac cells in areas adjacent to where an electrode is to be positioned in a patient's heart to improve or correct the signal to noise ratio of ca...
02/26/2008
7320599Blood pressure simulation apparatus with tactile interface
The blood pressure level in humans is a vital health parameter, yet the vast majority of people do not have a physical feeling for what normal and abnormal blood pressure levels mean in relation to the forces exerted on the heart and blood vessels. A blood pressure ...
01/22/2008
7308738Releasable fastener systems and processes
A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof. The hook portion generally includes a support and a plurality of closely spaced upstanding hook elements e...
12/18/2007
7255680Positive pressure infusion system having downstream resistance measurement capability
A fluid delivery system includes a first fluid container having infusion fluid for a patient. The first fluid container has an outlet and a conduit attached to the outlet. A second fluid container applies pressure to the first fluid container to force fluid out of t...
08/14/2007
7250037Patch-like infusion device
A system and method for a patch-like, self-contained substance infusion device which provides one or more substantially hidden patient needles which can be placed in fluid communication with a fluid reservoir subassembly that includes a rigid bladder portion used in...
07/31/2007
7249613Energy attenuation device
An energy attenuation device for a conduit that is adapted to convey a pressurized fluid therethrough, comprising a hose section disposed about a portion of the conduit, wherein such conduit portion is provided with at least one aperture, for example in a surface th...
07/31/2007
7244357Pumps for filtration systems
Improvements in product water throughput from a reverse osmosis (RO) membrane filter achieved by thinner feed spacers in the RO element, enhanced recovery (ratio of permeate to feed), pressure recovery of the retentate fluid pressure opposing the feed water pressure...
07/17/2007
7240999Liquid ejection apparatus and control method of the liquid ejection apparatus
A liquid ejection apparatus has a liquid cartridge including a liquid container that has a flexible portion and stores liquid therein and a pressure chamber for applying pressure to the flexible portion of the liquid container; a liquid ejection head for ejecting li...
07/10/2007
7238171Method and apparatus for controlling pressurized infusion and temperature of infused liquids
A system for controlling pressurized infusion and temperature of intravenous fluids according to the present invention includes a housing, a heating assembly and a flexible cover. The heating assembly is recessed within the housing and includes a generally U-shaped ...
07/03/2007
7239941Device for programming a pump used to inject medicaments
The invention relates to a device for programming a pump used to inject medicaments. Said pump comprises two connectable units, namely: (i) a cartridge unit (12) which contains the liquid to be injected and which comprises an electronic memory unit (36...
07/03/2007
7214209Dispenser
A dispensing apparatus for dispensing a unit dose of a pharmaceutical substance, in particular one for intranasal administration, is disclosed. The unit dose is contained in a cylinder which is moved relative to a piston to expel the contents thereof through a passa...
05/08/2007
7195774Implantable and sealable system for unidirectional delivery of therapeutic agents to tissues
A surgically implantable and sealable delivery device that upon contact of its contents via an interface window or port therein with an organ or tissue exposes a therapeutic agent to the organ or tissue surface, allowing a controlled, selective and unidirectional di...
03/27/2007
7192414Programmable implantable pump with accessory reservoirs and multiple independent lumen catheter
An implantable pump system includes: an implantable pump having separate chambers or reservoirs; and a catheter having two or more reservoir-specific inlet ports directed into respective lumens of the catheter. In one embodiment, the distal tips of the respective lu...
03/20/2007
7175608Device for the identification of the epidural space
The invention provides devices and methods for identification of an epidural space. The invention also provides for visually determining when a needle enters the epidural space. ...
02/13/2007
7169755Solution for removing cataracts via liquefracture
An improved solution for use in the removal of cataractous lenses via liquefracture is described. The liquefracture solution contains a viscosity-enhancing agent to increase the residence time of the solution in the heating chamber of the liquefracture handpiece, th...
01/30/2007
7163013Apparatus for the nasal or oral delivery of a medicament
An apparatus (1) for the nasal or oral delivery of a medicament, comprises: (a) a sealed flexible container (3) containing the medicament and a gaseous propellant for the medicament; and (b) a delivery device (5), comprising: (i) a main body par...
01/16/2007
7160268Container for delivery of fluid to ophthalmic surgical handpiece
A container for delivery of a surgical fluid to a surgical handpiece is disclosed. The container includes a volume for receiving the surgical fluid to be delivered to the handpiece and an end for removably engaging a receptacle in a surgical console and for fluidly ...
01/09/2007
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
7146690Releasable fastener system
A releasable fastener system comprises a loop portion and a hook portion. The loop portion includes a support and a loop material disposed on one side thereof. The hook portion generally includes a support and a plurality of closely spaced upstanding hook elements e...
12/12/2006
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