Class / Patent application number | Description | Number of patent applications / Date published |
604070000 | Material expelled from injector by pressurized fluid | 22 |
20090099510 | Seal for a Prefilled Medical Jet Injection Device - A sealing membrane | 04-16-2009 |
20090137949 | NEEDLE-FREE INJECTION DEVICE WITH NOZZLE AUTO-DISABLE - A nozzle assembly for a needle-free injection device. The nozzle assembly includes a nozzle body including an injectate chamber and one or more outlet orifices and a plunger configured to move through the injectate chamber toward the one or more outlet orifices. In some embodiments, the plunger includes a first portion and a second portion removably joined by a frangible region. In some embodiments, the plunger includes extensions configured to couple the plunger to a drive assembly of a needle-free injection device. | 05-28-2009 |
20090247940 | TRIGGERING MECHANISM FOR A NEEDLE-FREE INJECTOR - Needle-free hypodermic jet injection devices having an actuation system to effect an injection from a drug delivery system. The actuation system includes an injection force assembly adapted to transmit a driving force to the drug delivery system. The actuation system further includes a trigger assembly adapted to alter the actuation system between a plurality of configurations including a fired configuration in which the injection force assembly transmits a driving force to the drug delivery system. In some embodiments, the device has a recoil restriction system including a restriction member adapted to couple the recoil restriction system to the trigger assembly and a recoil member coupled to the injection force assembly and movable relative to the restriction member. The restriction member limits movement of the recoil member once the recoil member moves a predetermined distance relative to the restriction member. | 10-01-2009 |
20100069831 | NEEDLE-FREE INJECTION SYSTEM - A needle-free injection device in which a gas cartridge or other source of pressurized gas is used to advance a piston and forcibly expel injectable fluid out through an injection orifice. When a gas cartridge is used, the gas cartridge may be moveable from an initial position to an actuating position in which gas is released to drive the injection, and a recoil inhibitor may be employed to prevent the gas cartridge from moving back to the initial position. A gas cartridge seal may be disposed on the gas cartridge and moveable with the gas cartridge to seal the gas cartridge against an interior wall of a gas cartridge housing. The needle-free injection device may also be configured so that sealing is compromised upon full advancement of the piston, so as to de-pressurize the device after delivery of an injection. | 03-18-2010 |
20100179473 | HYPODERMIC DRUG DELIVERY RESERVOIR AND APPARATUS - A hypodermic drug delivery apparatus ( | 07-15-2010 |
20110015567 | Intradermal Needles Injection Device - A programmable injection device, comprising: a nozzle comprising a nozzle head with a fluid input hole and a distinct injection hole, the nozzle head accepts a dose of fluid from the fluid input hole to be injected into the skin of a patient through the injection hole, without use of a needle, a fluid capsule that is connected to said nozzle head and is adapted to provide the nozzle head with multiple doses of fluid for successive injections, without replacing the fluid capsule, an injection head that is adapted to have said fluid capsule and said nozzle head mounted onto it, comprising a first mechanism adapted to forcefully push a dose of a programmable amount of fluid from said fluid capsule to said nozzle head and a second mechanism for injecting by an programmable pressure said dose of fluid from said nozzle head into the skin of a patient in at least one of a programmable velocity or a programmable pressure applied to the skin surface. | 01-20-2011 |
20110021980 | NEEDLE-FREE DELIVERY DEVICE FOR THERAPEUTIC PROTEINS BASED ON SINGLE ANTIGEN-BINDING DOMAINS SUCH AS NANOBODIES.RTM. - The present invention relates to needle-free delivery devices for administering therapeutic or diagnostic therapeutic proteins that are based on single domain antibodies, and methods of using such a device in therapies or diagnostic applications. | 01-27-2011 |
20110230826 | MICROJET DRUG DELIVERY SYSTEM - The present invention relates to a novel type of a needle-free drug delivery system in which strong energy such as a laser beam is focused inside liquid contained in a sealed pressure chamber to cause bubble growth and the volume expansion in the sealed pressure chamber due to the bubble growth so as to elongate an elastic membrane, so that an instantaneous pressure is applied to a drug solution contained in a drug microchamber adjacent to the elastic membrane to allow the drug solution to be injected in the form of a liquid microjet, thereby enabling the drug solution to rapidly and accurately penetrate into the bodily tissues of the patient. | 09-22-2011 |
20120089086 | MEDICAL VALVE ASSEMBLY - A medical valve assembly including a rigid external housing and a valve stem of a resilient material. The valve stem includes a passageway for conveying a fluid which has an hourglass shape to create a venturi effect when cleaning the valve stem to improve the efficiency of the cleaning process. The passageway also includes no sharp edges, thus reducing the risk of fluid getting trapped inside the passageway when the medical valve assembly is not in use. Even further, when a needleless syringe is removed from the valve stem, the valve stem expands to an uncompressed state with its top end being generally flush with an end of the housing to present a swabable surface for cleaning purposes. | 04-12-2012 |
20120109050 | HIGH PRESSURE INJECTION CATHETER SYSTEMS - A needleless fluid injection system ( | 05-03-2012 |
20120310154 | APPARATUS AND METHOD FOR TREATING TISSUE - An apparatus for treating tissue of a mammalian body. In one embodiment, a spring mechanism is carried by first and second tubular members and actuatable for moving a needle from a first position disposed within the distal extremity of the first tubular member to a second position extending distally of the first tubular member. In another embodiment, a nozzle is coupled to the distal extremity of an elongate tubular member for delivering a material into tissue of the mammalian body. In a further embodiment, a flexible elongate member provided with a recess is introduced into a cavity of the body to capture tissue in the recess and electrical energy is applied to such tissue in the recess so as to change the compliance of the tissue. | 12-06-2012 |
20130066263 | MICROJET DRUG DELIVERY SYSTEM AND MICROJET INJECTOR - The present invention relates to a microjet drug delivery system for microjet spraying a drug solution stored inside to inject the same into the bodily tissue of a person to be operated, and a microjet injector. The microjet injector comprises: a pressure chamber completely filled with the liquid for propelling pressure, having an accommodation space with one side opened; an elastic film, which is a film member made of an elastic material, arranged so as to form a closed space by closing the opened one side of the pressure chamber; a drug chamber for accommodating a drug solution in a predetermined inner space, provided adjacent to the pressure chamber with interposing the elastic film therebetween; and a microjet nozzle communicating with the inner space of the pressure chamber so as to be formed as a channel for allowing the drug solution stored inside the pressure chamber to be microjet sprayed to the outside. The microjet drug delivery system provided by the present invention comprises: the microjet injector; an energy focusing device for generating bubbles in the liquid for propelling pressure stored in the pressure chamber by applying a concentrated energy to the liquid for propelling pressure; and a connecting adaptor for selectively detachably coupling the microjet injector to the energy focusing device. | 03-14-2013 |
20130123686 | NEEDLELESS INJECTION DEVICE COMPONENTS, SYSTEMS, AND METHODS - A high-pressure fluid injection system, which includes a rechargeable injection chamber with a proximal end, a distal end, and an internal opening extending from the proximal end to the distal end, a plunger slideably engaged with the internal opening of the injection chamber, an injection tube extending from the distal end of the injection chamber and in fluidic communication with the internal opening of the injection chamber, and a check valve between the proximal and distal ends of the injection chamber. The internal opening includes a high-pressure zone adjacent to the check valve and having a first diameter, and a low-pressure zone proximal to the high-pressure zone and having a second diameter that is larger than the first diameter. | 05-16-2013 |
20130144207 | PULSED MEDIUM- AND HIGH-PRESSURE LIQUID JET GENERATOR FOR MEDICAL AND SURGICAL USES - A medium- and high-pressure pulsed jet generator ( | 06-06-2013 |
20130261540 | HIGH-PRESSURE PNEUMATIC INJECTION SYSTEM AND METHOD - A needleless or high-pressure injection system for injecting treatment or therapeutic fluid to tissue of the lower urinary tract, such as the prostate or bladder, is provided. The systems or devices can release the therapeutic fluid or “injectate” at high-pressure out of one or more orifices at the end of an elongate shaft inserted into the urethra. Various embodiments can include a pneumatic or fully-pneumatic system adapted to selectively release the high-pressure injectate, while also providing firing or triggering protection. | 10-03-2013 |
20140180204 | APPARATUS AND METHOD FOR TREATING TISSUE - An apparatus for treating tissue of a mammalian body. In one embodiment, a spring mechanism is carried by first and second tubular members and actuatable for moving a needle from a first position disposed within the distal extremity of the first tubular member to a second position extending distally of the first tubular member. In another embodiment, a nozzle is coupled to the distal extremity of an elongate tubular member for delivering a material into tissue of the mammalian body. In a further embodiment, a flexible elongate member provided with a recess is introduced into a cavity of the body to capture tissue in the recess and electrical energy is applied to such tissue in the recess so as to change the compliance of the tissue. | 06-26-2014 |
20140221916 | TWO-STAGE RECONSTITUTING INJECTOR - An injector ( | 08-07-2014 |
20140296777 | NEEDLELESS SYRINGE - The present invention resides in a needleless syringe for injecting an injection objective substance into an injection target area of a living body without using any injection needle; the needleless syringe comprising a main syringe body; an accommodating unit which accommodates the injection objective substance by the aid of a sealing member in an accommodating chamber provided in the main syringe body; a pressurizing unit which pressurizes the injection objective substance accommodated in the accommodating unit to move or destroy the sealing member thereby so that the injection objective substance is discharged to outside; a flow passage unit which forms a discharge port with respect to the injection target area and which defines a flow passage so that the injection objective substance pressurized by the pressurizing unit is discharged via the discharge port to the injection target area; and a preparatory filling unit which fills the flow passage unit with a part of the injection objective substance accommodated in the accommodating chamber by destroying a part of the sealing member before pressurization is performed by the pressurizing unit. Accordingly, it is possible to mitigate the load exerted on the nozzle during the injection and reduce the noise without deteriorating the convenience of a user of the needleless syringe. | 10-02-2014 |
20160001041 | HIGH PRESSURE INJECTION CATHETER SYSTEMS - A needleless fluid injection system including an injection console, an injection chamber in operative communication with the console, an injectate shaft in operative communication with the console, which has an injection lumen extending from a proximal end to a distal end of the shaft, and at least one injection orifice extending through a wall of the injection lumen proximate the distal end of the shaft. The injection lumen can include a sealing cap at its distal end. Alternatively, the system can include an injection plunger having an extending flange portion that is engageable with the console. In another alternative, the system includes an intermediate connector between injection chamber and the injectate shaft. In another embodiment, the system includes a leak management system extending from an outer surface of the injectate shaft. | 01-07-2016 |
20160089496 | NEEDLELESS SYRINGE AND METHOD FOR DELIVERING THERAPEUTIC PARTICLES - The present disclosure relates to a needleless syringe and method for delivering therapeutic particles. A source of therapeutic particles is located between a gas source and a cannon having a side opening. Gas released from the gas source causes a propagation of the therapeutic particles through the cannon. The side opening causes a reduction of a pressure of the gas in the cannon. | 03-31-2016 |
20160199579 | NEEDLE FREE INJECTORS | 07-14-2016 |
20160199580 | DEVICES AND METHODS FOR DELIVERING PARTICLES | 07-14-2016 |