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| Number | Title | Issue Date |
| 7666169 | Syringe and syringe plungers for use with medical injectors A syringe plunger includes a wall having an inner surface and one or more inwardly projecting flanges disposed on the inner surface of the wall. Preferably, the inner surface of the wall defines a retaining shoulder formed along an axial plane thereof. An injector d... | 02/23/2010 |
| 7645267 | Prefilled syringe A prefilled medical syringe includes a syringe barrel. A syringe plunger is disposed in the barrel and displaceable by means of a plunger rod. An end plug closes off a cannula side of the syringe barrel. The plug is provided with a through-channel closed off by a me... | 01/12/2010 |
| 7566326 | Syringe plunger locking mechanism A injection system having a syringe body which defines a pumping chamber. A syringe plunger is located in the pumping chamber and is adapted for reciprocal motion within the pumping chamber. The syringe plunger includes a capture member projecting outwardly in a pro... | 07/28/2009 |
| 7491191 | Keep vein open method and injector with keep vein open function The present invention embodies a method and an injector adapted to incorporate this method, for keeping a patient's vein open during an intravenous contrast injector procedure without injecting a saline solution from a separate syringe. The injector includes a contr... | 02/17/2009 |
| 7407495 | Syringe assembly having disabling mechanism A syringe assembly having passive disabling structure includes a barrel and a plunger rod assembly. The plunger rod assembly includes a plunger rod and a stopper connected by an indexing locking element. The number of strokes of the syringe plunger before the stoppe... | 08/05/2008 |
| 7399293 | Syringe assembly having disabling mechanism with tamper resistance features A syringe assembly having passive disabling structure includes a barrel and a plunger rod assembly. The plunger rod assembly includes a plunger rod and a stopper connected by an indexing locking element. The number of strokes of the syringe plunger before the stoppe... | 07/15/2008 |
| 7371241 | Multi-use surgical cement dispenser apparatus and kit for same The present invention is directed to a system and method for percutaneous delivery of bone cement during a surgical procedure. The system of the present invention has a plunger assembly 100, comprising: a shaft having a first end, a middle section, and a seco... | 05/13/2008 |
| 7357785 | System for detecting air A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between... | 04/15/2008 |
| 7337538 | Methods and apparatuses for joining a pumping cartridge to a pump drive Apparatus and methods of their use are described for engaging a pumping cartridge with a pump drive. In certain embodiments, the cartridge, comprising a cylinder and a movable piston assembly, is initially assembled or subsequently positioned so that the distance be... | 03/04/2008 |
| 7331935 | Syringe assembly having disabling mechanism A syringe assembly having passive disabling structure includes a barrel and a plunger rod assembly. The plunger rod assembly includes a plunger rod and a stopper connected by an indexing locking element. The number of strokes of the syringe plunger before the stoppe... | 02/19/2008 |
| 7331934 | Syringe assembly having disabling mechanism A syringe assembly having passive disabling structure includes a barrel and a plunger rod assembly. The plunger rod assembly includes a plunger rod and a stopper connected by an indexing locking element. The number of strokes of the syringe plunger before the stoppe... | 02/19/2008 |
| 7329235 | Powder and liquid mixing syringe A mixing syringe having a first sealed chamber containing a powder (powder housing) and a second sealed chamber containing a liquid (liquid housing). When the user needs to inject a patient, he or she holds the mixing syringe approximately upright and depresses a pl... | 02/12/2008 |
| 7320680 | Single-use syringe A single-use syringe includes a barrel having front and rear passageways and a shoulder disposed there between, a plunger movable in the rear passageway, a carrier having a tail portion extending from a front end wall of the plunger, and pushing and retained regions... | 01/22/2008 |
| 7300417 | Syringe/plunger coupling A medical fluid injector, replaceable syringe, and coupling mechanism to engage the syringe plunger to the plunger drive ram of the injector are provided wherein coupling involves a cam cleat-like mechanism, thereby allowing for cooperative movement between the plun... | 11/27/2007 |
| 7267668 | Disposable syringe and cartridge with pneumatic chamber A syringe or cartridge having a hollow barrel with an open end and a second end suitable for attaching a needle assembly. A master plunger assembly that includes a master plunger and a plunger member is mounted in the barrel for longitudinal movement therein. A slav... | 09/11/2007 |
| 7255684 | Medical injection system A method and apparatus for the storage and transfer of medical material includes a syringe having a rodless piston magnetically coupled to an actuator that is positioned along the syringe independent of the rodless piston. The syringe may also include a medical mate... | 08/14/2007 |
| 7253142 | Protein solution preparation and method of stabilizing the same The present invention provides stable protein solution formulations filled in a container made from a hydrophobic resin at least for the part in direct contact with said formulation. ... | 08/07/2007 |
| 7229585 | Molded plastic rod with improved break strength An injection molded plastic rod suitable for use in a battery hydrometer. Stress-relieving formations are provided symmetrically arranged on opposite sides of an injection gate of the rod. The formations distribute injection stresses and shield the gate vestige.... | 06/12/2007 |
| 7226431 | Low-cost non-reusable and anti-needlestick enhancements to disposable syringes A disposable syringe incapable of re-use comprising a plunger itself comprising an elongated stem, a disk called a “spider” held near the lower end of the stem. The plunger furthermore comprises a stem extension in the shape of a short cylinder, affixed to the l... | 06/05/2007 |
| 7195609 | Piston stopper for injection device, product container and injection device The invention relates to a piston stopper for an injection device, for injecting a medical or therapeutic product by axially advancing a piston stopper into a product container, wherein the piston stopper includes a stopper body and a stopper body holder detachably ... | 03/27/2007 |
| 7166089 | Plunger of a syringe A plunger of a syringe includes a shank partially movably received in a barrel of the syringe. The shank includes a first end having a thumb rest radially extending therefrom and a second end having a stub longitudinally extending from the shank. The stub includes a... | 01/23/2007 |
| 7153288 | System for detecting air A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between... | 12/26/2006 |
| 7125395 | Device for controlled delivery of an injectable liquid A device for the controlled delivery of an injectable liquid from a liquid container, wherein a flexible force transferring means transfers the drive force of a drive wheel onto a piston which can be slid axially in the device, a preferably permanently acting restor... | 10/24/2006 |
| 7081104 | Method and apparatus for injecting fluid into animals and disposable front loadable syringe therefor An animal fluid injector, replaceable syringe and method of replacement of the syringe in the injector are provided in which the syringe is loadable and unloadable into and from the injector through the open front end of a pressure jacket of the injector, thereby pe... | 07/25/2006 |
| 7077824 | Single use safety syringe A safety device for a syringe needle, which includes a guide and a slidable member having a first portion that is configured to be slid along the guide and a second portion having a formation for a needle, that facilitates the shielding of the sharp point within sai... | 07/18/2006 |
| 7056301 | Syringe A syringe, on which a needle member is mounted, includes a barrel, a plunger and a stopper. The barrel has a chamber, a stop portion adjacent to the needle member, a lock portion on a wall of the chamber and a needle mount. The plunger has a lock device and an opera... | 06/06/2006 |
| 7033338 | Cartridge and rod for axially loading medication pump The present invention concerns a medication pump, a cartridge for use in a medication pump, a pump cap for use with a medication pump, components of the cartridge and methods of use of these devices. A cartridge includes a plunger having a tab that projects from an ... | 04/25/2006 |
| 7029458 | Front-loading syringe adapter for front-loading medical injector A syringe adapter, which permits use of syringes of various types and sizes to be used with a front-loading injector, includes a piston extension and an adapter face plate. The piston extension includes structure for connecting the piston extension to a drive piston... | 04/18/2006 |
| 6890320 | Continuous liquid infusion device The invention provides a continuous liquid infusion device in which liquid syringe and a negative pressure cylinder are separable to use a liquid infused syringe. This continuous liquid infusion device includes: a negative pressure cylinder having a barrel part incl... | 05/10/2005 |
| 6872191 | Self-destructive syringe The present invention of a self-destructive syringe includes a hollow needle barrel having a detachable structure disposed between a rubber head and a push rod located therein; a retaining ring is disposed in a proper distance at the front end inside the needle barr... | 03/29/2005 |
| 6835191 | Self-venting movable seal and plunger A self-venting movable seal and plunger assembly for use in dispensing materials from cylindrical bodies is disclosed. The assembly includes a self-venting movable seal and a plunger tip that seats within a plunger tip pocket in the movable seal, occluding a vent in... | 12/28/2004 |
| 6817990 | Fluid reservoir piston An improved pump, reservoir and reservoir piston are provided for controlled delivery of fluids. A motor is operably coupled to a drive member, such as a drive screw, which is adapted to advance a plunger slide in response to operation of the motor. The plunger slid... | 11/16/2004 |
| 6808513 | Front loading medical injector and syringe for use therewith A front-loading syringe, which comprises a movable plunger for injecting liquid contrast media, is mountable on a front wall of an injector housing having a pressure jacket, by a first quick release mechanism. At the same time, the plunger is connected to an injecto... | 10/26/2004 |
| 6802828 | System for filling and assembling pharmaceutical delivery devices A system is provided which permits syringe barrels of prefilled disposable syringes to be filled and capped on standard vial filling equipment, and which permits the syringe body and piston comprising the barrel to be simultaneously sterilized by a sterilizing gas. ... | 10/12/2004 |
| 6800071 | Fluid reservoir piston An improved pump, reservoir and reservoir piston are provided for controlled delivery of fluids. A motor is operably coupled to a drive member, such as a drive screw, which is adapted to advance a plunger slide in response to operation of the motor. The plunger slid... | 10/05/2004 |
| 6773416 | Safety hypodermic syringe A safety hypodermic syringe in which the plunger is detachably connected to the stopper by a hook joint so that when the user pulled the plunger backwards to carry the stopper and the needle assembly backwards to the inside of the barrel after the service of the syr... | 08/10/2004 |
| 6764466 | Adapter and syringe for front-loading medical fluid injector Adapters for use with an angiographic injector. A face plate adapter includes a channel for receiving a rearward end of a syringe. First and second mounting flanges on the adapter overlay a portion of the channel, to cooperate with mounting flanges on a rearward end... | 07/20/2004 |
| 6761707 | Safety syringe having needle holder capable of fixing secured and easy to drawback A safety syringe comprises a barrel, which has a body forming a receiving hole, a stop portion in the receiving hole. A needle holder has a hole therein, an elastic lock piece formed a claw at distal end, and a dragged portion. The needle holder is received in the r... | 07/13/2004 |
| 6752789 | Syringe plunger locking mechanism A injection system having a syringe body which defines a pumping chamber. A syringe plunger is located in the pumping chamber and is adapted for reciprocal motion within the pumping chamber. The syringe plunger includes a capture member projecting outwardly in a pro... | 06/22/2004 |
| 6733475 | Safety syringe of easy to pull out the plunger A safety syringe comprises a barrel having a projection in a rear end thereof, a needle holder for mount of a needle, the needle holder having a dragged portion, a stopper movable in the barrel, the stopper having a drag portion adapted for engaging into the dragged... | 05/11/2004 |