Abstract: A system for increasing rates at which fluids may be manually forced through injection/aspiration elements, such as catheters and needles, includes the injection/aspiration elements, as well as a syringe including a pair of crossed handles, one associated with the barrel of the syringe, the other associated with the plunger of the syringe, to provide a mechanical advantage. The system may include and injection/aspiration element of small (e.g., 0.052 inch or smaller) inner diameter. Such systems enable the use of a single hand to hold and operate a syringe in a variety or procedures, including angiography, angioplasty, discography, glue/cement injection, and a variety of aspiration procedures (e.g., biopsy, sampling, media removal, etc.).

Abstract: 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 restoring force of a spiral spring is applied to the drive wheel in order to advance the piston and expel the liquid, and a locking means locks the drive wheel against rotation and releases the drive wheel to expel the liquid. In one embodiment, the amount of liquid expelled can be indicated by audible clicks and, in one embodiment, the drive wheel moves only incrementally when the locking mechanism releases the drive wheel.

Abstract: An end-of-content arrangement for preventing a dose setting member of an injection device to be set to a dose larger that the medicament remaining in the injection device. The arrangement is particular suitable for injection devices operating with non-equistant dose volumes. The arrangement comprises an indentation provided on the housing or on the dose setting and injection member which indentation arrest a stop member when less than one dose unit is left in the cartridge. The stop member is coupled to the dose setting member such that the interaction between the indentation and the stop member prevents a dose larger that the remaining medication in being set.

Abstract: A fluid dispenser device comprising a body (1), dispensing means (30) for dispensing the fluid, a first reservoir (10) containing a first fluid and a second reservoir (20) containing a second fluid, the first and second fluids being to be mixed prior to dispensing so as to form one or more doses of fluid to be dispensed, said fluid dispenser device being characterized in that it further comprises a mixture-forming system for mixing the first and second fluids in one of said reservoirs (10, 20), said mixture-forming system having a manual actuating element (50) that is mounted to move in a direction that is substantially perpendicular to the direction in which the fluid is dispensed, said manual actuating element (50) being actuatable with one hand and acting, after said first and second fluids have been mixed, to actuate the dispensing means (30) for dispensing the fluid, without any further manipulation of the device being necessary.

Abstract: An injection device having an incremental clicking mechanism providing the user with an indication of the number of doses being set. For handling different types of medicaments having different dose volumes in the same type of injection device it is beneficial to provide an additional clicking mechanism which is easy changeable. The clicking mechanism is preferably a curved track provided between the dose setting member and a non-rotatable clicker element.

Abstract: A drug delivery device having a base member defining a skin-contacting surface, a syringe serving as a reservoir for the drug, and means for expelling drug from the syringe. The syringe is connected to the base member such that the longitudinal axis of the syringe is substantially parallel to the skin surface. A delivery needle is in communication with the syringe. The needle has an angled bend which directs the tip of the needle substantially perpendicular to the skin-contacting surface. In use, the tip of the needle is adapted to penetrate the skin of the subject.

Abstract: A needle-less injector suitable for injecting fluid through a surface includes a housing, a driver, an engine and a trigger. The housing contains a fluid and the engine contains a compressed gas. Upon application of sufficient force to the trigger, the compressed gas is released from the engine forcing the driver through the interior of the housing, expelling the liquid from the housing at a speed sufficient to pierce an injection surface. In one embodiment, the needle-less injector includes a mechanism for mitigating the kickback associated with releasing compressed gas from the engine. In another embodiment, the housing includes finger rests that provide stability and resistance to activate the device. In another embodiment, the engine is fitted with a reusable valve.

Abstract: The present invention provides a novel apparatus for delivering a liquid or gel-like surgical material to a target site within a body cavity. The apparatus is characterized in part by an elongated structural member adapted for engagement with a conventional syringe and cannula assembly. In preferred embodiments of the present invention, devices of the invention further comprise a highly flexible applicator tip which permits application of the surgical material at variable delivery angles and even against gravity. Methods also are disclosed for applying the surgical material to the target site using. devices of the present invention.

Abstract: The applicator (10) for depositing a one- or multi-component fluid, particularly a tissue adhesive, comprises a housing (12) arranged for attachment of at least one supply container (16) for the fluid. The supply container (16) comprises a discharge opening (28) and a piston (20) for sliding displacement in the direction of said discharge opening (28). A tensioning lever (58) is pivotally supported on the housing (12), which, when manually operated, causes movement of a spring tensioning element (54) by which a spring (46) for storage of mechanical energy can be tensioned. Coupled to the spring tensioning element (54) is a drive element (66) being adapted to be driven, by the stored mechanical energy of said spring (46), in increments and which is arranged to move a press-on element (84) acting on said piston (20) for displacing it in the direction of said discharge opening (28) of said supply container (16).

Abstract: Injection devices, such as needleless injection devices, and methods of making and using the same are disclosed.

Abstract: A marking syringe which allows an individual using the syringe to inject a fluid such as a vaccine into an animal and, at the same time, mark the location of the injection on the animal. More specifically, the marking syringe includes a vaccine syringe and an ink dispenser connected to a handle. Activation of the handle simultaneously activates the vaccine syringe and the ink dispenser. The vaccine syringe is connected to a source of vaccine and a source of ink is provided. After connection of the vaccine and ink sources, the syringe needle is inserted into the animal and a syringe handle is actuated. As the handle is actuated, a vaccine syringe and an ink dispenser both discharge their contents. The position of the ink dispenser relative to the vaccine syringe is such that the discharged ink marks the animal in the approximate location of the vaccine injection.

Abstract: An apparatus for delivering fluid, or power syringe, comprises a base, a lever, and a syringe. The syringe has a reservoir adapted for holding a quantity of fluid and a plunger disposed within the reservoir and adapted for movement therein. The reservoir features a clip on one end which releasably secures the end of the reservoir to the base and an inwardly facing annular flange on the second end which substantially prevents the plunger from being removed from the reservoir and substantially prevents leakage. The base of the apparatus features an extension beyond the end of the reservoir containing the clip, thereby providing stability to the apparatus during operation. The plunger features a clip on one end which releasably secures the plunger to the lever.

Abstract: A marking syringe which allows an individual using the syringe to inject a fluid such as a vaccine into an animal and, at the same time, mark the location of the injection on the animal. More specifically, the marking syringe includes a vaccine syringe and an ink syringe connected to a handle. Activation of the handle simultaneously activates the vaccine syringe and the marking syringe. The vaccine syringe and the ink syringe are respectively connected to a source of vaccine and a source of ink. After connection to the vaccine and ink sources, the syringe needle is inserted into the animal and a syringe handle is actuated. As the handle is actuated, a vaccine syringe and an ink syringe both discharge their contents. The position of the ink syringe relative to the vaccine syringe is such that the discharged ink marks the animal in the approximate location of the vaccine injection.

Abstract: A hollow needle applicator for cartridged drugs etc has provision for automatic needle retraction after cartridge contents expression. Its drugs etc cartridge (125, 225, 325) can itself be at least partially accommodated bodily within a hollow piston actuator (145, 345), and will be released for retraction under bias (123, 3230 thereinto along with and by way of a piston rod (132, 332) first serving to operate contents (131, 331) discharge piston provision (130, 330) of the cartridge (125, 225, 335). The piston rod (132, 332) has deflectable arms (137, 337) that extend sideways further than side walling of the cartridge (125, 225, 335) and into temporary driving engagement with receiving formation(s) (147, 347) of the piston actuator (145, 345) until released by deflection of the arms (137, 337). The piston (132, 332) rod further has guiding formation(s) ((138, 338) extending into the hollow piston actuator (145, 345).

Abstract: A bulb syringe providing for uniform, hence repeatable, deflation/inflation of the bulb and a tactile-discernible limit of deflation of the bulb and resultant control over the consistency of degree of suction produced with the deflated bulb is allowed to inflate in response to its resiliency and memory. The bulb syringe includes a bottom portion having a spout and a top portion whose resiliency is enhanced by a plurality of ribs. The top and bottom portions are provided with equatorial shoulders which are joined and which establish a tactile-discernible limit of deflation of the top portion. In one embodiment, the bottom portion is provided with a pair of lugs on the outer surface therefor for receipt of the palmar surfaces of two adjacent fingers of a user. Preferably, the syringe is transparent or at least sufficiently translucent as permits the visual inspection of any fluid contained therein.

Abstract: A power syringe (10) for use in medical procedures, such as angiography, delivers air or fluid, such as contrast medium, to a patient at operator controlled rates and pressures. In one embodiment, mechanical advantage is created by first and second arms (22, 26) which are interconnected with each other, the base, and the plunger (20). The proximal end of the syringe contains a track (44) that the plunger follows in normal fashion in and out of the reservoir. The track is bevelled from proximal to distal end to create a path with variable resistance. A mechanical stop (42) is at the proximal end of the track to control the length of travel of plunger and secondary mechanical arm. Markings (18) on reservoir (12) indicate the volume of fluid or air in the reservoir. Mechanical arm length, tracking length, and distance to plunger stop will vary with size of syringe to generate appropriate flow and power.

Abstract: Endoscopic sewing instrument with a helical-needle which has one or more windings and is Positioned between at least two rolls which drive the needle and the thread in a rotary manner.

Abstract: A one-piece disposable syringe system is disclosed including a conventional syringe having a glass barrel that is prefilled with a measured dose of pharmaceutical and a syringe support and disposal jacket that is adapted to hold the syringe in an injection mode to facilitate the administration of an injection of the pharmaceutical from the barrel and surround the syringe in a disposal mode to form a compact package and thereby facilitate the safe handling and disposal of the syringe while avoiding an accidental needle stick and the possible spread of contagious disease. The syringe support and disposal jacket has lower and upper body members that are rotatably connected together by an integral living hinge.

Abstract: A squeeze-activated fluid applicator for human manipulation is provided to express the medicinal contents of rupturable capsules; the devise consisting of a shell-like, elongate member of uniform diameter adapted to receive slidingly at its proximal open end an elongate cylindrical member. A cantilever member is adapted to be pivotally mounted midway of the inner elongate member, with a vertical piston operatively connected to the cantilever proximal end, while a strong upward spring bias is provided on the cantilever distal end. A push rod located axially of the cylindrical member can be hand activated to dislodge a bias-arrest feature on the cantilever and to cause the piston to close into a proximal face capsule chamber of the cylindrical member, compressing and expressing the enclosed contents into an adjacent port.

Abstract: A surgical instrument for injecting/removing non-solid substances is diclosed. The instrument comprises a body formed from two legs (1, 2) pivotally articulated to each other at one of their ends, one of said legs (1) being provided with means (15,17) for receiving and retaining a syringe or squirt (16) while the other of said legs (2) is provided with means (20,22) for selectively retaining a plunger (19) which cooperates with said syringe or squirt, said legs being selectively pivotable between a first position wherein said plunger (19) is received within said syringe (16) and a plurality of positions wherein plunger (18) moves within syringe (16) in order to inject/remove a non-solid substance.

Abstract: An apparatus 10 for driving a plunger 134 of a syringe 16 includes a plate 48 on the top 38 of a frame 36 and a structure 62 on the plate 48 for releasably attaching the cylinder 130 of the syringe 16 to the frame 36 and securing the cylinder 130 against lengthwise movement relative to the frame 36. A lever 76 is pivotably attached to the top 38 of the frame 36 a selected distance from the plate 48. A pair of pivot pins 108,110 releasably pivotably attach the distal end 150 of the plunger 134 of the syringe 16 to the lever 76. In this manner, pivotable movement of the lever 76 is translated into lengthwise movement of the plunger 134. An apparatus 10 for transferring a measured amount of fluid from a first fluid supply 14 to a fluid reservoir 170 includes a syringe 16, the syringe driving apparatus 12 and a two-way check valve 18. The fluid supply 14, the fluid reservoir 70 and the syringe 16 are maintained in fluid communication through the two-way check valve 18.

Abstract: An injection syringe useful in the medical arts for injecting high viscosity fluids or pastes, particularly in endoscopic applications. The syringe includes a force multiplying mechanism to infuse viscous medicaments such as collagen or polytetrafluoroethylene paste, with a controlled metering action. The force multiplying mechanism is provided by the combination of lower piston cylinder chamber that intersects with an upper cylinder chamber, wherein the piston is connected to a piston advancing means on a lever pivot arm.

Abstract: A device for the subcutaneous implantation of a pharmaceutical dosage form is presented. The device includes a cannula which houses the pharmaceutical dosage form and push member, all of which are prepackaged and may be sterilized. The device further includes an actuator comprising a flexible stylet, a trigger and a handle.

Abstract: A fluid dispensing apparatus is provided which comprises a flexible, collapsible fluid container in fluid communication with an adjustable volume multi-dose dispensing means.

Abstract: A one-piece syringe (2) includes an elongate frame (4) having front and back parts (6, 8) coupled by a hinge (10). A hollow barrel (12) extends from the front part and away from an outer surface (22). A plunger (14) having gaskets (54, 56) at its outer end (32) extends from the back part away from the inner surface (50). The frame is folded over at the hinge and the outer end of the plunger is inserted into the bore of the barrel. The plunger has a bendable region (62) along its length which permits the plunger to move properly along the bore during use. Withdrawal of the outer end of the plunger from the bore is prevented by the engagement of wedge shaped teeth (64) extending laterally from the plunger which engage and score the bore wall (70). After use, the barrel and plunger are pivoted to a disposal position generally parallel to the front part of the frame. This causes the frangible connection (26) between the plunger and the frame to break further preventing the reuse of the syringe.

Abstract: Apparatus for administering liquid medication to an animal is provided and includes an elongated administering rod having a first one way valve adjacent to the tip thereof and which rod is connected to a hollow housing in which there is located a barrel syringe so that measuring indicia thereon is visible, a hollow piston mounted for reciprocal movement in the barrel syringe, a closure member for holding the barrel syringe in place and through which a hollow piston rod having the piston attached thereto reciprocates. Apparatus is provided for reciprocating the piston rod and piston. A fitting is attached to the piston rod and is connected by a flexible tube to a supply of liquid medication and a second one way valve is mounted in the fitting. When the liquid medication is being administered, the first one way valve is open and the second one way valve is closed. When the liquid medication is being aspirated into the barrel syringe, the first one way valve is closed and the second one way valve is open.

Abstract: A biopsy needle assembly comprised of an outer flexible catheter and a reciprocating interior structure on which the needle is mounted. In one embodiment, the needle is directly connected to an internal guide wire. In another, the needle is directly connected to an inner flexible catheter and the guide wire can either extend through the needle or be stopped within the needle. In each embodiment, the needle includes a lateral opening providing a fluid path from the hollow needle, through the catheter, either between the catheter and guide wire or the inner and outer catheters to an outlet at the proximal end of the assembly. The invention also relates to a syringe plunger stop end lock attachment.

Abstract: A body fat injection syringe holder with a mechanism for retracting the barrel of a syringe to the plunger and a mechanism for retracting the plunger simultaneously retracting the plunger with the barrel. A trigger apparatus for variably controlling the rate of retraction of the barrel relative to the retraction of the plunger.

Abstract: A syringe injector to hold a syringe that comprises a barrel and a plunger. The plunger includes a piston received in the barrel. The injector comprises a support frame with a cradle to receive the syringe barrel at one end of the support frame. The plunger is held and there is a lever pivotally attached to the frame. A connecting rod extends from the lever to the holding means. In use, movement of the lever moves the plunger of the syringe and affords mechanical advantage to the user.

Abstract: The invention is directed toward a hand-held syringe actuator and removable syringe. The syringe acutator includes a stationary part which removably receives a flange of the syringe barrel and a movable finger part which removably receives a flange at the end of the syringe plunger. The finger grip is movable upon application of finger pressure, but is spring biased to urge the plunger into the syringe barrel. A valve operating stem, carried by the actuator, slidably extends through the finger grip and through the plunger, extending into the syringe barrel and terminating in a valve element. The valve element is sized to seat in a valve seat provided in the syringe barrel at the closed end of the barrel. A spring urges the valve member to remain seated on the seat. The device is constructed so that it can be held and manipulated by the use of only one hand.In one form of device, a latch is provided and can be activated to releasably hold the valve element off of its seat.

Abstract: An injection assisting apparatus for use with a disposable syringe includes a primary support attachable to the syringe barrel, a plunger head retainer connected to the primary support by a sliding shaft, and a plurality of finger rings attached to the support and retainer for moving one relative to the other to produce a corresponding movement of the plunger relative to the barrel of the syringe. In one preferred form, the primary support forms a clasp capable of snap-fitting about a portion of the barrel. In another preferred form, the primary support includes an alignment body pivotally connected to a barrel support frame. A thumb ring attached to the retainer is rotated with respect to the plane of the finger rings attached to the primary support, to conform closely to the natural orientation of the thumb with respect to the index and the middle fingers.

Abstract: A dispensing device including a hollow cylindrical body from which a high viscosity composition is discharged in precisely metered doses by a plunger rod longitudinally movable within the body. A series of projection are formed at equispaced, longitudinal intervals from each other on the plunger rod. A pair of parallel actuating arms pivotally mounted on the body extend along opposite side of the plunger rod and are formed with a pair of teeth, respectively, projecting inward toward the rod. By depressing the arms, the teeth pivot into engagement with one of the projections to advance the plunger within the body to expel a desired amount of composition. In a preferred embodiment, advancement of the plunger rod through a precise distance is automatically controlled via contact between the teeth with stop surfaces formed on the next in-line projection.