| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 604118000 | Having means for varying, regulating, indicating, or limiting injection pressure or aspirating suction | 61 |
| 20080208122 | Controlling the Retraction of a Needle in an Auto Retractable Syringe - Means to control the retraction of an auto-retractable safety syringe to minimise splashback or splatter is disclosed. The end of a hollow plunger ( | 08-28-2008 |
| 20080262425 | Reservoir for Front End Loaded Infusion Device - A medical reservoir ( | 10-23-2008 |
| 20080269678 | AUTOMATIC RELAY PUMP SYSTEM & METHOD - An automatic pump relay system includes controllers coupled to drivers for sequentially discharging fluid from a plurality of medication containers into a coupler having a reflux barrier from which fluid is administered to a patient. The internal fluid pressure of the coupler is determined by a pressure sensing device or devices that provide signals to the controllers that, based at least on the sensor signals, cause the drivers to operate in reverse and forward directions so as to rapidly decrease and raise the fluid pressure within the coupler during a relay from an empty syringe to a filled syringe, thereby avoiding bolus formation and an interruption in infusion therapy. Independently operable syringes pumps are contemplated to be connected in relay fashion to form a modular system. An associated method is also disclosed wherein a fluid administration pressure is stored for use as a reference during a syringe changeover. | 10-30-2008 |
| 20080287870 | Vented Drug Reservoir Unit - A reservoir unit ( | 11-20-2008 |
| 20080287871 | Method and Device for Intradermally Delivering a Substance - A device for delivering a substance into the skin of a patient includes a body and a skin penetrating device having at least one skin penetrating member, such as a microneedle. The body includes an internal cavity and a device for indicating the delivery of a sufficient amount of the substance to the patient and for producing a dispensing pressure to dispense and deliver the substance from the cavity. The indicating device is visible from the exterior of the delivery device. In some embodiments, the indicating device is an elastic expandable diaphragm which, when the cavity is filled with a substance, creates the dispensing pressure. | 11-20-2008 |
| 20090124974 | Mechanical Volume Control for Injection Devices - A needleless fluid delivery system allowing for selective control of amounts of therapeutic fluids that are administered to treatment sites within a patient. The fluid delivery system includes an injector source and an access device. The fluid delivery system generally includes an adjustable volume control system for selectively metering the amount of therapeutic fluid to be delivered to the treatment location. The adjustable volume control system generally includes a mechanical stop system with a plunger member and a stop member, wherein the plunger member and stop member physically interact to restrict a plunger insertion length which simultaneously controls an amount of therapeutic fluid expelled by said plunger. | 05-14-2009 |
| 20090157001 | Recessed Electrodes for Sensing Flow in Ophthalmic Surgical System - A flow measurement device | 06-18-2009 |
| 20090254034 | SAFETY OCCLUDER AND METHOD OF USE - An improved safety occluder and method of use provides an occluder for an infusion set having a first, occluding position, a second, non-occluding position which returns to the first, occluding position when the occluder's plunger is released, and a third, non-occluding position which retains the plunger in a configuration which allows fluid flow through the infusion set. The occluder may also include a locking mechanism to prevent accidental movement of the plunger out of the first, occluding position. | 10-08-2009 |
| 20100130929 | APPARATUS AND METHOD FOR CONTROLLING A VACUUM SOURCE TO ESTABLISH FLUID FLOW - A flow control system that includes a vacuum device configured to control the level of vacuum applied for urging the flow of aspirated fluid from a surgical site, and a vacuum sensor configured to communicate a signal representative of the sensed vacuum level. A flow sensor control is configured to generate a signal indicative of the rate of aspirated fluid flow. A flow controller monitors the vacuum sensor and the flow measurement device, and communicates a requested vacuum level to the vacuum device for establishing a desired vacuum level. The flow controller employs a first feed back loop that compares the actual sensed vacuum level with the requested vacuum level and adjusts the requested vacuum level as needed. The flow controller implements a second feedback loop that compares the actual flow rate of aspirated fluid with a desired flow rate, and adjusts the requested vacuum level to achieve the desired flow rate. | 05-27-2010 |
| 20100191185 | Power Injection Valve - A device for transferring fluids between an internal structure in a living body and an exterior thereof, comprises a housing including a pressure activated lumen extending to a distal end opening to a power injection lumen that extends to a distal port configured for connection to a fluid conduit extending to a target structure within the body and a pressure activated valve extending across the pressure activated lumen and controlling fluid flow therethrough, the pressure activated valve opening to permit fluid flow therethrough into the power injection lumen when a fluid pressure differential thereacross is at least a first predetermined threshold level and remaining sealed when the fluid pressure differential thereacross is less than the first threshold level in combination with a proximal port coupled to the housing for movement between a first position in which a proximal end of the power injection lumen opens to the proximal port and a second position in which a proximal end of the pressure activated lumen opens to the proximal port. | 07-29-2010 |
| 20100198154 | Pressure compensating device - A pressure compensating device includes a compensating disc located within an internal chamber of a housing. The compensating disc has a diaphragm over which fluid passes after entering the internal chamber. The diaphragm deflects in response to a pressure differential between fluid entering the internal chamber and fluid exiting the internal chamber to maintain the set flow rate of the fluid. | 08-05-2010 |
| 20100198155 | CASSETTE FOR DIFFERENTIAL PRESSURE BASED MEDICATION DELIVERY FLOW SENSOR ASSEMBLY FOR MEDICATION DELIVERY MONITORING AND METHOD OF MAKING THE SAME - A disposable assembly for use with a sensor assembly, the disposable comprising a body, a flow restricting element, and a fluid pressure membrane. The body has a lid portion and a base portion. The body defines a fluid flow passage that forms an inlet and an outlet. The flow restricting element is positioned in the fluid flow passage between the inlet and the outlet. The fluid pressure membrane is disposed along the fluid flow passage between the inlet and the outlet. The fluid pressure membrane is located between the lid portion and the base portion of the body. | 08-05-2010 |
| 20100305505 | SYSTEMS AND METHODS FOR DELIVERING THERAPEUTIC AGENTS - The present embodiments provide systems and methods suitable for delivering a therapeutic agent to a target site. The systems generally comprise a container for holding a therapeutic agent, and a pressure source configured to be placed in selective fluid communication with at least a portion of a reservoir of the container. In one embodiment, fluid from the pressure source is directed through a first region of the container in a direction towards a second region of the container. The fluid then is at least partially redirected to urge the therapeutic agent in a direction from the second region of the container towards the first region of the container and subsequently towards the target site. In alternative embodiments, the fluid from the pressure source may be directed through the second region of the container in a direction towards the first region of the container. | 12-02-2010 |
| 20100305506 | Method for Correcting Medical Fluid Injection Pressures Based on Usage - Certain embodiments of the invention are directed to a medical fluid injector of the type that uses a motor to drive fluid from a fluid container by receiving electrical energy from a power source. The medical fluid injector has a motor drive control that delivers electrical energy to the motor. The motor drive control measures electrical energy delivered to the motor and computes a pressure value of the fluid delivered based upon the measured electrical energy. This pressure value is computed utilizing a calibrated relationship between the electrical energy delivered to the motor and resulting fluid pressure from the fluid delivered. The control further tracks a time factor over an operative life of the motor and alters the calibrated relationship based upon the time factor. | 12-02-2010 |
| 20110270181 | Multi-Port Delivery System - A device for delivering material to multiple surgical target locations includes a pressure reservoir selectably coupled to two or more outlets. Coupling the pressure reservoir to a given one of the outlets and pressurizing the pressure reservoir causes flowable material (e.g., bone filler material) to be dispensed from that outlet. A diverter for selectably coupling the pressure reservoir one of the outlets can be configured to trigger a pressure release valve for the pressure reservoir upon switching, thereby preventing unexpected or uncontrolled material delivery from the new outlet in response to sudden high pressure exposure. | 11-03-2011 |
| 20120136301 | Power Injection Valve - A device for transferring fluids between an internal structure in a living body and an exterior thereof comprises a housing including a pressure activated lumen extending to a distal end opening to a power injection lumen that extends to a distal port configured for connection to a fluid conduit extending to a target structure within the body and a pressure activated valve extending across the pressure activated lumen and controlling fluid flow therethrough, in combination with a proximal port coupled to the housing for movement between a first position in which a proximal end of the power injection lumen opens to the proximal port and a second position in which a proximal end of the pressure activated lumen opens to the proximal port. | 05-31-2012 |
| 20120277675 | Nasal Rinse Tip - A device for nasal lavage is described. The device ejects a gentle flow of fluid under pressure. The fluid stream provides a high quantity of fluid at low pressure. The low pressure fluid stream is more comfortable for a user than a high pressure fluid stream that are delivered by various types of pressurized cans of solution. | 11-01-2012 |
| 20130303986 | Vascular Access Catheter Anchor and Access Valve - Provided is a venous catheter having an anchoring system and access valve for attachment to intravenous lumen tubing. The anchor includes a sloping base plate that is attached to the skin of a user for providing stability and immobility to the tubing. The sloping base plate elevates the tubing away from the skin in order to prevent catheter-related bloodstream infections. The plate can include an extension and cover for securing the tubing into position, and a shelf that allows the plate to extend beyond the extension to prevent skin contact with the tubing. The access valve is a T-shaped adapter for connecting the tubing to a dialysis machine tubing, and includes a flushing branch that eliminates the need to disconnect the tubing from the dialysis machine when flushing the dialysis vascular access. The access valve can be attached below the extension, snapped into the extension, or molded into the extension. | 11-14-2013 |
| 20150105724 | Therapeutic Agent Injection Device - A therapeutic agent injection device including an injection device for delivering a therapeutic agent to a patient having a body, the body having a patient face and an port face opposite the patient face, the port face having an introducer port including an introducer channel and an injection port including an injection channel, the introducer channel being in fluid communication with the injection channel through a cross channel, the injection channel defining an injection axis; a delivery tube for subcutaneous delivery of the therapeutic agent to the patient, the delivery tube projecting from and being generally perpendicular to the patient face, the delivery tube defining an introducer axis and being in fluid communication with the injection port; and a patch, the patch being attached to the patient face and being operable to adhesively attach to the patient; wherein the injection axis is parallel to the introducer axis. | 04-16-2015 |
| 20150133863 | PRESSURE REDUCER FOR SUPPLYING DRUGS TO A PATIENT AND CORRESPONDING PRODUCTION METHOD - The present invention relates to a pressure reducer for delivering drugs to a patient and the corresponding method of manufacture, said pressure reducer for delivering drugs to a patient comprising: a duct ( | 05-14-2015 |
| 20150306308 | FLUID DISPENSING OR FEEDING DEVICE - A fluid dispensing device includes a container coupled between a bottle and a discharge tube for forcing the fluid to flow through the discharge tube without gravity, a base member is disposed in the container, a housing is engaged in the container and movable toward and away from the base member, a spring biased plug controls the fluid to flow out of the housing, a cap and a casing are attached to the container, a spring biased valve piece is engaged in the casing for engaging with the cap and for controlling the fluid to flow through the cap, a magnetic member is attached to the casing, and a coil is attached to the container to act with and to move the magnetic member in the container. | 10-29-2015 |
| 20160089505 | SYSTEMS FOR MANAGING RESERVOIR CHAMBER PRESSURE - Systems for managing pressure in a fluid reservoir chamber of a fluid infusion device are provided. For example, a fluid infusion device comprises a housing having a chamber for receiving a fluid reservoir. The fluid infusion device also comprises a drive system contained within the housing. A portion of the drive system is movable for dispensing fluid from the fluid reservoir. The fluid infusion device comprises a pressure management system at least partially defined in the portion of the drive system to vent air from the chamber. | 03-31-2016 |
| 20160089506 | SYSTEMS FOR MANAGING RESERVOIR CHAMBER PRESSURE - Systems for managing pressure in a fluid reservoir chamber of a fluid infusion device are provided. For example, a fluid infusion device is provided. The fluid infusion device comprises a housing defining a reservoir chamber for receiving a fluid reservoir. The fluid infusion device also comprises a drive system contained within the housing for dispensing fluid from the fluid reservoir. The fluid infusion device comprises a pressure management system at least partially defined in the reservoir chamber to manage air pressure in the reservoir chamber. | 03-31-2016 |
| 20160151568 | SYSTEMS AND METHODS FOR DELIVERING A THERAPEUTIC AGENT USING MECHANICAL ADVANTAGE | 06-02-2016 |
| 604119000 | Means varying or regulating suction | 18 |
| 20090124975 | SYSTEMS AND METHODS FOR SURGICAL REMOVAL OF BRAIN TUMORS - A method for treating a brain tumor includes providing a surgical instrument having an inner member and an outer member. The outer member has a distal region forming a cutting window and an optional distal elevator tip. The inner member is rotatably received within the outer member, and has a cutting tip that is exposed at the window. The cutting tip and the distal region of the outer member combine to define a cutting implement. An opening is created through the patient's skull to provide access to a brain tumor target site. The cutting implement is delivered through the opening to the target site. The elevator tip is inserted partially between the tumor and tissue of the target site, and the cutting tip is placed into contact with the tumor and operated to cut the tumor. The target site is selectively aspirated to remove cut tumor tissue. | 05-14-2009 |
| 20090171288 | SYSTEMS AND METHODS FOR VACUUM-ASSISTED REGENERATION OF DAMAGED TISSUE - A system and method for regenerating damaged or necrosed tissue. Negative or vacuum pressure is applied to a surface of the damaged tissue to stimulate the revascularization of the area and/or increased blood flow to the area, which encourages the regeneration of the damaged tissue. A negative pressure device is provided that is capable of providing a sequenced vacuum treatment regimen to damaged tissue. | 07-02-2009 |
| 20090182275 | Disposable shutoff valve apparatus for suction devices and the like - A disposable shutoff valve apparatus used in conjunction with a surgical suction device having a suction nozzle for stopping the suction action and muffling the noise from the suction device during surgery. The apparatus includes an upper portion, a base portion and a flexible member. The base portion is provided with pressure sensitive adhesive material and covered by a peel-off cover which can be peeled off so that the adhesive material can be securely attached to a surgical drape around a patient during surgery or other stationary object. The suction nozzle of the suction device can be inserted into and through the open end of the suction chamber and passes through the upper retaining member such that the suction nozzle pulls the flexible member toward itself, and thereby the flexible member stops the suction action of the suction nozzle and muffles the noise from the suction nozzle of the suction device and further simultaneously grips the suction device within the suction chamber. The apparatus further includes an upper portion and a base portion. Once the two portions are attached together, a suction chamber is formed. The flexible member is installed and disposed within the suction chamber and secured thereto by two retaining members. The first end of the flexible member is held within the lower retaining member while the second end of the flexible member encompasses the upper retaining member and press-fitted and held by the two spaced apart transverse grooves respectively. | 07-16-2009 |
| 20090187146 | VACUUM ASPIRATION HANDLE - A medical device is provided. The medical device includes a sheath with an extended distal end portion, a proximal end portion, and a lumen defined therethrough. A handle is fixedly connected to the proximal end portion of the sheath, the handle includes an operator that is translatable between a first position and a second position. A flow path is defined within the handle in fluid communication with the proximal end portion of the sheath, wherein the operator is configured to substantially block the flow path in a second position and allow flow therethrough in a first position. The flow path includes a portion that is configured to communicate with a remote source of suction. The handle additionally includes a second inlet portion configured to receive a tool therethrough and allow the tool to extend through the lumen of the sheath. | 07-23-2009 |
| 20090216189 | DEVICE AND METHOD FOR CONTROLLING FLOW OF LIQUID FLUID IN ARTHROSCOPIC SURGERY - In the preferred embodiment, the invention is a device for foot actuated fluid flow control through a surgical site in arthroscopic surgery. The device preferably includes: a foot pedal and a fluid regulator. Compression of the foot pedal actuates the fluid regulator, which switches the fluid regulator to the OPEN state, preferably in a variable fashion. The device also includes tubing that allows the device to be connected and used with a variety of existing systems for arthroscopic surgery. | 08-27-2009 |
| 20090221963 | System and Method to Vent Gas from a Body Cavity - One aspect of the invention is a method to vent gas from a body cavity during an endoscopic procedure. A body cavity is in fluid communication with an exhaust gas inlet of a vacuum break device. The vacuum break device has a chamber in fluid communication with both the inlet and an outlet. The chamber may comprise one or more openings in fluid communication with the atmosphere. A conduit in fluid communication with the exhaust gas outlet may be connected directly or indirectly to a suction source. The suction source may be activated. | 09-03-2009 |
| 20090270807 | Aspiration Catheter Having An Internal Vacuum Accumulator - An aspiration catheter is provided in which vacuum may be accumulated within the catheter and released suddenly within a distal region of the catheter to induce ingestion of intravascular matter into the catheter through an open distal port while avoiding large losses of suction common with catheters having long aspiration lumens. Conventional aspiration using the same catheter can subsequently complement the procedure by fully removing the ingested matter from the catheter. | 10-29-2009 |
| 20090270808 | Aspiration Catheter Having Variable Volume Distal Suction Chamber - An aspiration catheter is provided in which rapid withdrawal of a piston disposed within a distal region of a catheter lumen creates a sudden pressure drop for ingestion of intravascular matter into the catheter lumen through a distal port while avoiding large losses of suction common with catheters having long aspiration lumens. Conventional aspiration using the same catheter can subsequently complement the procedure by fully removing the ingested matter from the catheter. | 10-29-2009 |
| 20090275893 | INSTRUMENT PORT FOR MINIMALLY INVASIVE CARDIAC SURGERY - An instrument port for introducing instruments into a surgical site, including a port body having a channel running therethrough from a proximal end to a distal end, an instrument sleeve in slidable contact with the channel, creating a gap therebetween, and fluid flow for removing emboli efficiently from the instrument port, wherein the fluid flow includes the gap is provided. A fluid flow system for use in an instrument port is provided. A method of removably securing an instrument sleeve to a port body by anchoring the instrument port to heart tissue, making at least one flood line in a channel, flushing out emboli, and performing surgery with the instrument port. | 11-05-2009 |
| 20090287151 | BRONCHOTRACHEAL ACCESS VALVE FOR A BRONCHOASPIRATION APPARATUS - A bronchotracheal access valve for a bronchoaspiration apparatus. The valve is characterized in that the rotation of a second member in a given direction with respect to a first member moves the valve from a configuration in which a conduit communicates hydraulically with a sleeve, to a configuration in which the conduit communicates hydraulically with a flush conduit via a duct and a channel to flush an end portion of a catheter. | 11-19-2009 |
| 20100152656 | DEVICE FOR CONTROLLING FLOW RATE OF ASPIRATED FLUIDS - A flow control device includes a housing having a motor chamber and a pump chamber. The motor chamber has an outlet for communication with a fluid collection device, and an inlet for communication with an aspiration line through which fluids are delivered into the motor chamber. First and second motor rotors are rotatably disposed in a flow path between the inlet and the outlet in the motor chamber, and a drive shaft is coupled to the first motor rotor. The pump chamber has an outlet for infusing fluid to a surgical site, and an inlet through which infusion fluids are delivered into the pump chamber. First and second pump rotors are rotatably disposed in a flow path between the inlet and the outlet in the pump chamber, where the first pump rotor is coupled to the drive shaft. The drive shaft drives the pump rotors at the same speed as the motor rotors, such that any surge in aspiration flow induces a similar surge in infusion flow. | 06-17-2010 |
| 20100185150 | Post-Occlusion Chamber Collapse Canceling System For A Surgical Apparatus and Method of Use - A post-occlusion chamber collapse canceling system for a surgical apparatus that detects the breaking of occlusions by tissue fragments in the distal end of the aspiration path and produces a response comprising a transitory blockage of the distal end the aspiration path to terminate the chamber collapse and a simultaneous transitory venting of the aspiration line to relieve the vacuum, in a way that post-occlusion chamber collapses are cancelled. | 07-22-2010 |
| 20100249703 | STERILIZABLE VACUUM HANDPIECE - A sterilizable vacuum handpiece that may include a base unit reversibly coupled to a handle unit, having a central vacuum passage connecting proximal and distal ends. A hand-removable base unit valve may divide a base unit vacuum passage and a hand-removable handle unit valve may separate a handle unit vacuum passage, in adjustable fluid communication with each other. The valves may be retained within bores and counter-bores, and may achieve fluid-tight fit with O-rings retained within the valves. The valves may have vacuum passages with surface areas greater than or equal to a least diameter of the vacuum passage containing the valve. In at least one embodiment, the handle valve is releasably retained by the opposing ends of a “bucket-handle” shaped controller. Alternatively, the handpiece may be formed as a single combined unit, where the terms base unit and handle unit refer only to regions of an otherwise unified structure. | 09-30-2010 |
| 20140058328 | System and Method to Vent Gas from a Body Cavity - One aspect of the invention is a method to vent gas from a body cavity during an endoscopic procedure. A body cavity is in fluid communication with an exhaust gas inlet of a vacuum break device. The vacuum break device has a chamber in fluid communication with both the inlet and an outlet. The chamber may comprise one or more openings in fluid communication with the atmosphere. A conduit in fluid communication with the exhaust gas outlet may be connected directly or indirectly to a suction source. The suction source may be activated. | 02-27-2014 |
| 20150133864 | SUCTION CATHETER WITH DISTAL SUCTION MODULATION - A cleaning catheter includes tubular main body, shaped so as to define a distal-most suction orifice; and a suction lumen arranged along the main body in intermittent fluid communication with a suction source. A distal portion of the suction lumen is in fluid communication with the distal-most suction orifice. An outer wall of the main body is shaped so as to define an opening extending through the outer wall into the suction lumen at an axial location proximal to the distal-most suction orifice. An inflatable element is mounted to the main body along the opening. A collapsible membrane is positioned along the opening within an interior of the inflatable element, so as to define an inflatable chamber between a wall of inflatable element and the collapsible membrane. The collapsible membrane is positioned to at least partially occlude the suction lumen upon at least partial inflation of the inflatable chamber. | 05-14-2015 |
| 20160106450 | Variable Suction Control - An apparatus including a housing, an electrical conductor, and a suction control valve. The housing forms a handle and a shaft. The housing defines a suction channel from a distal end of the shaft. The electrical conductor extends to the distal end of the shaft. The suction control valve is connected to the suction channel at the handle. The suction control valve includes a valve body having a first channel and a second channel connected to the first channel, where the first channel forms a portion of the suction channel; and a valve barrel rotatably connected to the valve body. The valve barrel includes a rotatable ring extending around the handle and forming a portion of the housing. The ring includes an orifice configured to be rotated into and out of registration with an end of the second channel as the ring is rotated about the valve body. | 04-21-2016 |
| 20160114085 | SUCTION DEVICE FOR SURGICAL INSTRUMENTS - A suction device is shown and described. The suction device includes a body, an input port configured to receive a flow of matter, a suction port, and a suction lumen that couples the suction port to the input port. In some embodiments the suction device is configured to couple with a surgical instrument for use in a surgical procedure. | 04-28-2016 |
| 604120000 | With cyclic or timed regulation | 1 |
| 20150088068 | SUCTION REGULATOR HAVING FOUR MODES OF OPERATION - A suction regulator arranged to be coupled to a source of partial vacuum and a patient circuit and which is operative in four modes is disclosed. A first mode isolates the source of partial vacuum from the patient. A second mode provides continuous regulated suction to the patient. A third mode provides intermittent regulated suction to the patient. The fourth mode provides unregulated full suction to the patient. The regulator includes a movable control knob for establishing the first, second, third and fourth modes and a detent mechanism holding the control knob in the position to select the desired mode. An interlock is also provided to prevent the control knob from being accidentally moved to the position establishing the unregulated full suction mode. | 03-26-2015 |
| 604121000 | On piston type injector or aspirator | 19 |
| 20080306443 | Medical Fluid Injector Having Wireless Pressure Monitoring Feature - The present invention relates to medical fluid injectors. An exemplary injector may include a drive ram that is adapted to interface with a plunger of a syringe. The drive ram may be equipped with an RF enabled pressure sensor that is configured to measure pressure exerted on the syringe plunger by the drive ram. In addition, the injector may include an RF circuit in RF communication with the pressure sensor of the drive ram. In some embodiments, the injector may include a controller in electrical communication with the RF circuit. The controller may be configured to adjust movement of the drive ram to alter the pressure exerted on the syringe plunger by the drive ram (i.e., the pressure measured by the pressure sensor). | 12-11-2008 |
| 20090182276 | Fluid Delivery Device with Autocalibration - A micro fluid delivery device is particularly useful in medical applications. The device may be worn or carried by the user and may deliver drugs or other medicaments to the user or patient. The device has a control system that accepts input from the user and controls all aspects of operation of the device. The control system measures the output of the pump and adjusts the output of the pump to achieve the desired dosage rate and size. This eliminates differences from pump to pump that result from inevitable variations in the manufacturing of such small scale affordable devices. | 07-16-2009 |
| 20090240200 | APPARATUS AND METHODS FOR INJECTING HIGH VISCOSITY DERMAL FILLERS - A method includes inserting a distal end portion of a needle of a medical injector into a skin of a body. An energy source operatively coupled to the medical injector is actuated such that a dermal filler is conveyed from the medical injector into the skin through the distal end portion of the needle. The distal end portion of the needle is moved within the skin during the actuating. | 09-24-2009 |
| 20100249704 | PATENCY CHECK WITH PRESSURE MONITORING - A patency check protocol ( | 09-30-2010 |
| 20100305507 | Compact non-electric medicament infuser - An assembly is provided which includes an infusion device coupled to a standard medication syringe. The medication syringe may be coupled to a stopcock valve having multiple ports and to which syringes, vial adapters, infusion tubing, and multiple other items may be coupled. The infusion device includes a source of power based on a resistance force such as vacuum, spring or gas power. The infusion device converts the resistance based force to usable work in the form of a force applicator. The force applicator includes a driver section on one section of a reciprocating arm and an attachment to the power source on another section of the arm. The driver is pulled outward (excursion) to increase the size of the chamber, creating a force that tends to return the driver back inward, causing incursion. The driver can be attached removably to the syringe plunger to induce the infusion process. | 12-02-2010 |
| 20110301538 | ANESTHETIC SYRINGE HAVING A LONGITUDINALLY DISPLACEABLE FEEDING PISTON AND CHECK VALVE HAVING PASSAGE AND BLOCKING DEVICE - The invention relates to a syringe, particularly an anesthetic syringe, having a longitudinally displaceable feeding piston disposed over a first hydraulic chamber, and a second hydraulic chamber, wherein the first and second hydraulic chambers are connected by means of a first control element for regulating resistance, wherein the first control element can be actuated by a switch element, wherein the first control element comprises a first check valve. | 12-08-2011 |
| 20140074026 | PRESSURIZED MEDICAL INSTRUMENT - A pressurized medical instrument may include a piston handle system, a locking release system and a pressure display system. The piston handle system may include a piston, a piston seal, a handle and a rear cover. The locking release system may include a push button, a fixed support, a locking block, one or more springs and a slide block. The pressure display system may include a coating, a gauge stand, a lateral board, a gauge stand seal ring, a pressure gauge seal ring, a snapper, a pressure gauge and a rotary Luer conical tapered fitting. The pressurized medical instrument may facilitate rapid boosting operation by two hands, vacuum pumping by two hands and rapid pressure relief by a single hand. The instrument is characterized by ease-of-operation, quick boosting and pressure relief for observing easily the pressure value at different operating angles. | 03-13-2014 |
| 20140081208 | INJECTION PRESSURE MONITORING DEVICE AND SYSTEM - The present disclosure describes an injection pressure monitoring device including a pressure sensor, an injection pressure monitoring system and kits for monitoring injection pressure generated at a needle tip when injecting a therapeutic fluid composition into tissue, to avoid generating potentially damaging pressure in the tissue being treated. | 03-20-2014 |
| 20140088502 | Multi-Needle Injection Apparatus and System for Delivering Pharmacological Agents to Biological Tissue - An injector system for delivery of a pharmacological agent to biological tissue having a plurality of needles arranged in an array, a plurality of reservoirs configured to receive a pharmacological composition therein, the reservoirs being in fluid communication with a respective one of the plurality of needles, a pneumatic pressure source, a pneumatic drive system that is configured to induce a first discharge of the pharmacological composition out of the reservoirs and needles in a plurality of delivery modes, agent delivery volume control means for controlling volume of the pharmacological composition discharged from the needles, and a control system having actuation control means for controlling said pneumatic drive system. The control system is programmed to control the delivery modes. | 03-27-2014 |
| 20140155828 | PREFILLED SYRINGE JET INJECTOR - A jet injector that includes a prefilled syringe. The syringe includes a fluid chamber that contains a medicament. The syringe also has an injection-assisting needle, and a plunger is movable within the fluid chamber. A housing is configured for allowing insertion of the needle to a penetration depth. An energy source is configured for biasing the plunger to produce an injecting pressure in the medicament in the fluid chamber of between about 80 and 1000 p.s.i. to jet inject the medicament from the fluid chamber through the needle to an injection site. | 06-05-2014 |
| 20140276411 | Fluid Delivery System and Method of Fluid Delivery to a Patient - A fluid delivery system includes a pressurizing mechanism. The pressurizing mechanism includes: a substantially cylindrical body having a movable member positioned therein that divides the body into a first chamber and a second chamber; a plunger rod connected to a first side of the movable member and extending through a substantially closed first end of the body; and an elongated member connected to a second side of the movable member and extending through a substantially closed second end of the body. The plunger rod configured to operatively engage a fluid container. Fluid is dispensed from the fluid container by forming a vacuum within at least the first chamber by moving the movable member toward the second end of the body, allowing atmospheric pressure to enter the second chamber, and actuating the pressurizing mechanism to cause the moving member to move towards the first end of the body. | 09-18-2014 |
| 20150051546 | Injection Device for Administering a Liquid - An injection device ( | 02-19-2015 |
| 20150065958 | Dosing Unit for an Ambulatory Infusion Device - At least one dosing unit for an infusion pump is disclosed having a piston pump with a pump cylinder, a plunger arranged within said cylinder, and a plunger driving part provided for transmitting rotational torque from a driving unit to the plunger without itself being linearly displaced. The cylinder, the plunger and the plunger coupling element are coaxially arranged along a longitudinal axis and rotatable around said axis in regard to static parts of the dosing unit. The plunger and cylinder each having threads which engage with each other in such a way that a rotational movement of the plunger around the longitudinal axis results in a linear displacement of the plunger along the longitudinal axis. The dosing unit also having first coupling parts associated with the cylinder and second coupling parts associated with the plunger. | 03-05-2015 |
| 20150306299 | TARGET VOLUME BASED DIAPHRAGM REPOSITIONING FOR PRESSURE MEASUREMENT APPARATUS - Methods and extracorporeal blood treatment systems reposition a diaphragm of a pressure measurement apparatus (e.g., a pressure pod apparatus of an extracorporeal blood set) by, for example, controlling an air pump apparatus to move the diaphragm toward a target measuring position based on a calculated target air volume (e.g., wherein the calculated target air volume is representative of the air volume necessary to move the diaphragm to the target measuring position based at least on a monitored air pressure). For example, after the diaphragm is bottomed out or topped out, as air is added to or removed from the transducer side cavity of a pressure pod apparatus, the target air volume may be iteratively calculated until it is determined that the diaphragm is repositioned in the target measuring position. | 10-29-2015 |
| 20150320937 | Flush Syringe Assembly With Controlled Pulsatile Flushing - Flush syringe assemblies capable of creating pulsatile movement of the plunger rod as it moves in the distal direction within a syringe barrel, while preventing overpressurization of the cathether are provided. An exemplary flush syringe assembly includes a syringe barrel with a first pulsing element and a chamber with flush solution, a plunger rod with a stopper and a second pulsing element that interacts with the first pulsing element to provide an engagement force that causes pulsatile movement of the plunger rod and a thumb press slidably attached to the plunger rod with a pulse control element. The pulse control element is compressible to create a compression force that is greater than the engagement force of the first pulsing element and the second pulsing element. | 11-12-2015 |
| 20160030664 | MANUALLY OPERABLE PORTABLE INFUSION DEVICE - A portable therapeutic fluid delivery device and a method for delivering a therapeutic fluid into a body of a patient are provided. In one aspect the therapeutic fluid delivery device and the method can be implemented using at least one housing securable to the body of the patient, a reservoir coupled to the at least one housing, a therapeutic fluid dispensing mechanism, a memory component, a controller, at least one bolus delivery button configured to signal the controller to initiate the delivery of the therapeutic fluid into the body of the patient; and, an inadvertent initiation prevention mechanism adapted for preventing the patient from activating the at least one bolus delivery button. | 02-04-2016 |
| 20160030674 | CONSTANT FORCE SYRINGE - Various syringe systems are disclosed. One such syringe system may include a body having a hollow lumen and a distal end, a vacuum chamber disposed within the hollow lumen of the syringe body, a first plunger connected to a distal portion of the vacuum chamber, the first plunger forming a first seal against an inner surface of the syringe body and defining a fluid volume between the first plunger and the distal end of the syringe body, a second plunger disposed within the vacuum chamber, the second plunger forming a second seal against an inner surface of the vacuum chamber and defining proximal and distal volume compartments within the vacuum chamber, and a piston affixed to the second plunger, the piston configured to move the second plunger within the vacuum chamber, thereby altering a volume of the proximal volume compartment and a volume of the distal volume compartment. | 02-04-2016 |
| 20160051759 | PREFILLED SYRINGE JET INJECTOR - A jet injector that includes a prefilled syringe. The syringe includes a fluid chamber that contains a medicament. The syringe also has an injection-assisting needle, and a plunger is movable within the fluid chamber. A housing is configured for allowing insertion of the needle to a penetration depth. An energy source is configured for biasing the plunger to produce an injecting pressure in the medicament in the fluid chamber of between about 80 and 1000 p.s.i. to jet inject the medicament from the fluid chamber through the needle to an injection site. | 02-25-2016 |
| 20160158462 | MULTI-STROKE DELIVERY PUMPING MECHANISM FOR A DRUG DELIVERY DEVICE FOR HIGH PRESSURE INJECTIONS - A dual-chambered drug delivery device, comprising a cartridge having a first chamber for storing a medicament, a second chamber in fluid communication with said first chamber, a dose setting member for setting a medicament dose to be injected at an injection site, a piston disposed in said second chamber, an upward stroke of said piston drawing a portion of the medicament dose into said second chamber and a downward stroke of said piston expelling the portion of the medicament dose, a needle communicating with said second chamber for sequentially injecting portions of the medicament dose into the injection site, a drive screw movably connected to said dose setting member such that rotation of said dose setting member moves said drive screw upwardly, and a rack movably connected to said drive screw such that downward movement of said drive screw during the medicament dose injection rotates said rack. | 06-09-2016 |
