| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 604221000 | Piston or piston actuator slidable in or against seal ring mounted on reservoir | 22 |
| 20090259198 | RESERVOIR PLUNGER HEAD SYSTEMS AND METHODS - A casing may be configured to envelop at least a portion of a plunger arm attached to a plunger head located in a reservoir. A plunger head moveable in a reservoir may have a front portion comprising a first material compatible with fluidic media in an interior volume of the reservoir. A seal member having a first end and a second end that taper to a mid-portion may be positioned between a reservoir and a plunger head. A bias member may be configured to force a plunger arm operatively connected to a plunger head against a drive member to operatively engage the plunger arm to the drive member. A plunger head moveable in a reservoir may have a first ridge, a second ridge, a seal member adjacent at least one of the ridges, and protrusions arranged around at least one of the ridges. | 10-15-2009 |
| 20100030160 | ATTACHMENT FOR A SYRINGE OR A CARTRIDGE - The invention relates to an attachment ( | 02-04-2010 |
| 20100305513 | SYRINGE AND SYRINGE BARREL - To provide a syringe barrel and a syringe capable of allowing an operator to feel the amount of injected medical solution or the inserting distance of a piston by a difference in sliding resistance when an injection operation is performed. A syringe | 12-02-2010 |
| 20120004621 | Medical Device with Retractable Needle and Moveable Plunger Seal - A medical device having a barrel, a retractable needle, a needle retraction assembly and a plunger, the needle retraction assembly including and being held inside the barrel prior to retraction at least in part by a retainer member contacting the barrel, the plunger comprising a plunger seal with an body having at least a portion that is rearwardly moveable relative to the plunger and an elastomeric web that seals a retraction cavity inside the plunger prior to retraction of the needle, the retainer member and the plunger seal each cooperating with an inside wall of the barrel to provide a sealed liquid containment chamber inside the device. | 01-05-2012 |
| 20120232493 | MEDICAL APPARATUS - A medical vacuum aspiration apparatus ( | 09-13-2012 |
| 20130030380 | MEDICAL APPLIANCE HAVING A SLIDABLE COATING LAYER AND SYRINGE - A medical appliance having a slidable coating layer that moves in contact with an inner surface of a medical member or that of a lumen and has the slidable coating layer formed at a part thereof which contacts the medical member or the lumen. The slidable coating layer is formed of a composition which does not contain solid fine particles and contains a silicone-based resin which is a product of an addition reaction between silicone having a vinyl group and silicone having a hydrogen group bonded to a silicon atom. | 01-31-2013 |
| 20130116627 | Syringe Having Reduced Static Friction - A syringe comprising a cylinder and a plunger arranged in the latter has a sealing element which, with a contact region, abuts an inner wall of the cylinder and seals an annular gap between the plunger and an inner wall of the cylinder. The contact region has a front section which, in the rest state, abuts the inner wall of the cylinder with an abutment pressure. The plunger is connected to the sealing element in such a way that the sealing element does not follow an initial movement of the plunger out of the rest state and such that the sealing element follows a continued movement of the plunger. The abutment pressure between the sealing element and the inner wall in the front section of the contact region decreases during the initial movement. With the syringe, less force is required in order to overcome the static friction between the sealing element and the inner wall of the cylinder. | 05-09-2013 |
| 20130131606 | ERGONOMIC SYRINGE AND ADAPTOR - An ergonomic syringe includes a slide member, wherein force exerted on the slide member causes movement of a syringe plunger within a hollow or partially hollow syringe barrel, for withdrawing fluid from a source into the syringe, and also includes a reusable adaptor for use with existing conventional syringes, which has a ring that wholly or partially encircles the barrel and indirectly attaches to a plunger flange. | 05-23-2013 |
| 20130190695 | Medical Components Having Coated Surfaces Exhibiting Low Friction and Methods of Reducing Sticktion - A medical article is provided including a chamber formed from a cyclic polyolefin having an inner surface in sliding engagement with an exterior surface of a sealing member, the inner surface of the chamber being coated with a composition including a first mixture of organopolysiloxanes having different molecular weights and a viscosity ranging from about 5,000 centistokes to about 100,000 centistokes; and a sealing member having an exterior surface coated with a second mixture of organopolysiloxanes having different molecular weights and having a viscosity ranging from about 10,000 centistokes to about 500,000 centistokes, the coatings being adhered to the surfaces by crosslinking induced by irradiation with an isotope, electron beam, or ultraviolet radiation. | 07-25-2013 |
| 20130197451 | SYRINGE FOR PREFILLED SYRINGE - An object of the present invention is to provide a syringe for prefilled syringe in which the adsorption of a low-molecular medical agent or a protein for a long term is precluded. In accordance with the present invention, the above-described object is achieved by a syringe for prefilled syringe including: a plunger in which a gasket is attached to a top; and a syringe barrel in which the plunger is slidably accommodated, wherein the surface of the gasket and the inner wall of the syringe barrel are subjected to surface modification with a polymer containing zwitterion. | 08-01-2013 |
| 20140031764 | MEDICAL APPLIANCE HAVING A SLIDABLE COATING LAYER AND SYRINGE - A medical appliance including a slidable coating layer moves in contact with an inner surface of a medical member or that of a lumen. The medical appliance has the slidable coating layer formed at a part thereof which contacts the medical member or the lumen. The slidable coating layer is formed of a composition containing a solventless-type hardening silicone-based resin. | 01-30-2014 |
| 20140163479 | SYRINGE ASSIST DEVICE - A finger grip extension for a syringe is configured to increase the leverage the hand of an operator on the plunger of a syringe during injection of medical fluid into, or withdrawal of medical fluid from a body site. The finger grip extension for a syringe is used with a syringe having a barrel portion having an open proximal end and a distal end for mounting a medical fluid conduit thereon. The open proximal end of the syringe barrel terminates in a rim or flange. The syringe also includes a plunger having a proximal end and a distal end for insertion into the open proximal end of a syringe. The extension grip includes an upwardly extending portion located inside or outside of a syringe barrel. The upwardly extending portion includes a finger support at the uppermost portion thereof. | 06-12-2014 |
| 20140243757 | Indicator Arrangement for an Auto-Injector - Describe is an auto-injector comprising a syringe carrier arranged to retain a syringe, a plunger arranged to displace a stopper within the syringe, a feedback component retainable in a first position and biased towards a second position, a pin disposed on the feedback component, and an exterior component having a bore. The feedback component moves from the first position to the second position when the plunger during displacement of the stopper reaches a predetermined position. The pin enters the bore when the feedback component is in the second position. | 08-28-2014 |
| 20150045741 | PLUNGER FOR A MEDICATION CARTRIDGE - A medication cartridge plunger including a sealing member, which is formed of a resilient material, and a force distributing member, which is attached to sealing member and formed of a material more rigid than the resilient material. The force distributing member is shaped complementary with the sealing member to distribute to the sealing member a medication expelling force that may be applied to the force distributing member by an external drive element to drive the plunger forward. The force distributing member includes a radial periphery fit within a hollow of the sealing member. The radial periphery has a plurality of apex regions connected by spanning regions, which apex regions are disposed along a common circle centered on an axial center of the medication cartridge plunger. The spanning regions are disposed within the common circle, and each apex region, relative to the common circle, is not in diametric alignment with any of the other apex regions. | 02-12-2015 |
| 20150119817 | Leak-Free Stopper Having Low Breakloose and Sustaining Forces - A thermoplastic elastomer stopper that meets the desired material properties of a stopper for a syringe assembly is disclosed. The compression set of the thermoplastic elastomer stopper of the present disclosure is ≦50% when measured at 25% compression for 22 hrs at 70 degree C. The hardness of the thermoplastic elastomer stopper of the present disclosure is 40-70 Shore A. The viscosity of a thermoplastic elastomer stopper of the present disclosure is ≧70 Pa·s at 1,000 s | 04-30-2015 |
| 20150126940 | DRUG DELIVERY DEVICE - The invention relates to a drug delivery device, comprising:
| 05-07-2015 |
| 20150343145 | Needle Assembly Attachable to an Injection Device, The Needle Assembly Having a Reservoir Assembly with Locking Mechanism - A reservoir assembly comprising a reservoir housing, a piston, and a locking plug, both movably arranged inside the reservoir housing; wherein the volume between the piston and the locking plug defines a reservoir cavity. The reservoir assembly further comprising a reservoir outlet; and an actuator configured to act on the piston; wherein the locking plug is configured to be movable from a first position to a second position; wherein in the first position the reservoir outlet is not in fluid communication with the reservoir cavity. The reservoir assembly further comprising an interlock configured to prevent movement of at least one of the locking plug and the piston; wherein the interlock having a locked position and an unlocked position. | 12-03-2015 |
| 20150359969 | Syringe - A syringe includes a monolithic barrel ( | 12-17-2015 |
| 20150374922 | LIQUID ADMINISTRATION DEVICE - A liquid administration device includes: a structure that includes: a cylindrical body including a bottom part in a distal portion and an opening in a proximal portion, a needle tube positioned in the distal portion of the cylindrical body, the needle tube having a sharp needle tip at a distal end, wherein a proximal end of the needle tube is communicatable with the inside of the cylindrical body, and a gasket installed in the cylindrical body, the gasket being slidable in an axial direction of the cylindrical body; an operation member configured to perform a pressing operation by pressing the gasket such that the liquid is discharged from the needle tube; a pressing mechanism configured to generate a pressing force for pressing the gasket; and a pressing force transmission inhibiting mechanism configured to inhibit transmission of the pressing force to the gasket during the pressing operation. | 12-31-2015 |
| 20160158452 | Syringe With Plunger Rod Having a Flexible Portion - A syringe assembly including a plunger rod having a first end, a second end, and a rod portion extending therebetween, wherein at least a portion of the rod portion is flexible is disclosed. The flexible portion of the rod portion allows a stopper to be moved between a first position and a second position within a syringe barrel while the overall length of the syringe assembly remains the same throughout the movement between the first position and the second position. In another embodiment, a syringe assembly including a restraining member adapted to communicate with the flexible portion of the rod portion such that movement of the first end of the plunger rod in a first direction actuates movement of the second end of the plunger rod in a second direction different than the first direction is disclosed. | 06-09-2016 |
| 20160166771 | Aspirating Hypodermic Syringe and Syringe Adapter | 06-16-2016 |
| 20160184528 | SYRINGE BARREL AND MOLD FOR INJECTION MOLDING - A syringe barrel includes a hollow barrel portion that has a proximal-end opening at a proximal end of the barrel portion and is configured such that a gasket is insertable from the proximal-end opening into the barrel portion. An inner peripheral portion of the barrel portion includes a tapered portion in a main area of the inner peripheral portion in an axial direction, the tapered portion having an inner diameter that gradually increases toward a distal end of the tapered portion from a proximal end of the tapered portion. | 06-30-2016 |
