Abstract: Various embodiments of a medical module are provided which includes a primary module housing, a secondary module housing, a dosage sensor, a power source, and a microcontroller. The module is configured to be attached to a disposable drug delivery pen or a reusable drug delivery pen so that the module may: determine dosage selected, injection of selected dosage, duration of injection, time of injection, whether the pen has been primed or shaken to thoroughly mix up insulin mixtures, transmit information relating to insulin dosage and injection to a data management unit, provide reminders, error warning or messages on improper usage or reusage of needles, track amount of drug remaining on board the pen or duration of usage of pen with respect to expiry of the drug on board, or provide an audible alarm for locating misplaced pen and module.

Abstract: Various embodiments of a “smart” drug delivery system are provided which includes an add-on module and a reusable or disposable drug pen in conjunction with a data management unit(s) DMU. Upon attachment to the pen, the add-on module may: determine dosage selected, injection of selected dosage, duration of injection, time of injection, whether the pen has been primed or shaken to thoroughly mix up insulin mixtures, transmit information relating to insulin dosage and injection to a data management unit, provide reminders, error warning or messages on improper usage or reuse of needles, track amount of drug remaining on board the pen or duration of usage of pen with respect to expiry of the drug on board, or provide an audible alarm for locating misplaced pen and module. Methods of using the drug delivery system are also described.

Abstract: Various embodiments of a “smart” drug delivery system are provided which includes an add-on module and a reusable or disposable drug pen. Upon attachment to the pen, the add-on module may: determine dosage selected, injection of selected dosage, duration of injection, time of injection, whether the pen has been primed or shaken to thoroughly mix up insulin mixtures, transmit information relating to insulin dosage and injection to a data management unit, provide reminders, error warning or messages on improper usage or reusage of needles, track amount of drug remaining on board the pen or duration of usage of pen with respect to expiry of the drug on board, or provide an audible alarm for locating misplaced pen and module.

Abstract: A dispenser device comprising a pistol housing, a needle direction control mechanism, a boost mechanism, a quantification control mechanism, and a combination of the pistol housing, the needle direction control mechanism, the boost mechanism, and a syringe positioning mechanism or a holding ring embodies the present invention with features and advantages shown as follows, (1) Uniform injection of agents synchronously mixed by not less than two contents; (2) Mixed agents not exposed in air; (3) Uniform injection, high air tightness, injection direction controlled by easy turning, smooth and convenient operation, high powerful operation via shifts of a push rod driven by a pressed trigger, promoted yield rate, assembly easily constructed, reduced manufacture cost, and convenient maintenance.

Abstract: Medicament delivery device comprising an elongated housing (10) comprising a grip member (64) connected to the elongated housing and movable between a rest position in which the device has a predetermined grip size and an operation position in which the pre-determined grip size of the device is increased for providing an improved grip of the device during use.

Abstract: An aspiration apparatus includes handles with two members. Each of the handle members includes a proximal actuation end and an opposite distal connection end. The members of the handles are associated with one another (e.g., pivotally, etc.) in such a way that movement of the proximal actuation ends in first directions (e.g., toward one another, away from one another) causes the distal connection ends to move in opposite second directions (e.g., away from one another, toward one another). The distal connection end of the first member may configured for association with the barrel of a syringe, while the distal connection end of the second member may be configured for association with the plunger of the syringe. Association of one or both of the distal connection ends with its respective syringe element may be pivotal. Aspiration methods, including, but not limited to, methods of using such an aspiration apparatus, are also disclosed.

Abstract: 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.

Abstract: Syringe plunger rods comprising an elongate body formed from a composition comprising one or more of virgin material, a sterilization-stable recycled resin and a biobased compositions are described. Plunger rods comprising a plurality of ribs, some of which may have a plurality of openings, are also described. The plunger rods requiring less material while maintaining sufficient structural integrity to function properly.

Abstract: A syringe assembly includes a syringe barrel having a first end, a second end, and a sidewall extending between the first end and the second end. The syringe assembly further includes a stopper disposed within a chamber of the syringe barrel, a plunger adapter engaged with the stopper, and a plunger rod having first and second ends. The first end of the plunger rod is pivotally secured to the plunger adapter. The plunger rod has a pre-use position where the second end of the plunger rod is positioned adjacent to the syringe barrel, and a use position where the plunger rod is configured to displace the stopper relative to the syringe barrel. A recessed portion of the plunger adapter receives a portion of the first end of the plunger rod when the plunger rod is in the pre-use position and the use position.

Abstract: Devices and methods for simultaneous injection or delivery of two or more substances from separate syringes. The syringes are loaded into a device that has a handle and a screw driven mechanism for simultaneously depressing the plungers of the syringes. The user grasps the handle and positions the device. Thereafter, the screw mechanism is used to simultaneously advance the plungers of the syringes thereby simultaneously expelling the substances from the syringes.

Abstract: A disposable hypodermic syringe for stable one-handed dispensing of fluids and precision positioning comprises a hollow barrel for retaining fluid. The barrel has proximal end, a midpoint, and a distal end, and a proximal end. At least one forward barrel flange is fixedly formed around or connected to the barrel and positioned at a point between the midpoint and the distal end of the barrel. A barrel and plunger with larger diameter and shorter length compared to conventional syringes of a given volume is disclosed. A method of performing an injection using a syringe with a forward barrel flange is disclosed.

Abstract: A syringe is disclosed. The syringe may include a syringe body, a first slot formed in the syringe body, a first sleeve covering the first slot, a thumb grip including a first slot guide disposed in the first slot, the thumb grip shaped to slide from a first position near the distal end of the syringe body toward a second position near the proximal end of the syringe body, and a plunger disposed in the fluid chamber of the syringe body. The plunger is configured to move towards the proximal end of the syringe body in response to pressure applied by a user to the thumb grip and includes a first plunger slot guide.

Abstract: A system to minimize fluid turbulence inside a tissue cavity during endoscopic procedures. A body tissue cavity of a subject is distended by continuous flow irrigation using a solenoid operated pump on the inflow side and a positive displacement pump, such as a peristaltic pump, on the outflow side, such that the amplitude of the pressure pulsations created by the outflow positive displacement pump inside the said tissue cavity is substantially dampened to almost negligible levels. The present invention also provides a method for accurately determining the rate of fluid loss into the subject's body system during any endoscopic procedure without utilizing any deficit weight or fluid volume calculation, the same being accomplished by using two fluid flow rate sensors. The present invention also provides a system of creating and maintaining any desired pressure in a body tissue cavity for any desired cavity outflow rate.

Abstract: A syringe having an internal pressure gauge comprises a syringe barrel; a piston within the barrel; a spring coupled to the piston at a first position of the spring, the spring having a second portion that is movable in response to fluid pressure within a syringe cavity; and a pressure gauge having an indicator correlated to a plurality of positions of the second portion of the spring to indicate a pressure of a fluid. The spring can be a bellows. The fluid chamber can be in fluid communication with a cuff of an inflatable medical device, such as an endotracheal tube, such that the measured pressure comprises the fluid pressure within the cuff.

Abstract: A medical device removal system includes a vessel filter repositioning or removal device to remove and/or reposition a medical device, such as a vessel filter. The system includes a gripper to grip a medical device that is located within a body vessel, and a detector, linked to the gripper, to detect the proximity of the medical device to the gripper. The system may also include an output to indicate a signal from the detector.

Abstract: Embodiments disclosed herein relate to syringe systems for delivering and removing materials, instrument kits that include the syringe systems provided herein, and methods of using the syringe systems and kits provided herein.

Abstract: The present embodiments relate to devices and methods for injection. More specifically, the devices and methods provide an ergonomic aspect. In some embodiments, the devices and methods are especially useful in the administration of low volumes of dermal fillers to a subject.

Abstract: The present invention provides for an injection device including a syringe with a proximal end, a distal end, a needle extending from the distal end, and a plunger inserted into the proximal end. A guard is slidable on the syringe, has a proximal end, a distal end, and is biased from a first position wherein the needle is exposed towards a second position wherein the guard covers the needle. The injection device includes first and second sets of cooperating detents for retaining the guard and syringe in the first and second positions, respectively. A latch member extends proximally from the guard that is engageable by the plunger as the plunger is depressed to release the first set of cooperating detents. Upon release, a spring element biases the guard towards the second position until the second set of cooperating detents engage and secure the guard in the second position.

Abstract: An improved syringe which prevents the repositioning of a user's hand while administering an injection. The syringe comprises a barrel for holding a fluid medication, a nozzle extending from one end of the barrel, a syringe needle removably fitted to the nozzle, and a plunger slidably disposed within the barrel. The syringe further comprises an elongate handle member disposed substantially parallel to the barrel. The handle member is fixedly connected to the plunger whereby the plunger reciprocates within the barrel as the handle member is subjected to longitudinal to and fro motion.

Abstract: A guide wire extender includes a coupling element for coupling to a proximal portion of a guide wire. Such a configuration enables the introduction of elongate medical instruments that lack rapid exchange features to be introduced into the body of a subject over short, rapid exchange-length guide wires. Assemblies that include a guide wire extender within an elongate medical device are also disclosed. Such an assembly may include a configuration that enables a single user to effectively lengthen a guide wire and introduce the elongate medical instrument into a subject's body without significant risk of contaminating the elongate medical instrument. Systems that include a guide wire extender and an elongate medical instrument are also disclosed, as are methods of using the guide wire extender to introduce an elongate medical instrument into the body of a subject.

Abstract: A syringe for the metered delivery of materials, in particular of dental materials, is described. The syringe may include a tube which accommodates material and a rotary plunger. Radially extending gripping bodies may be disposed about a longitudinal axis of the syringe are disposed on the syringe in the region of the outlet opening of the tube for applying the fingers of the hand for rotating the tube about the rotary plunger.

Abstract: A flow delivery system including a syringe that includes an outer plastic shell, a leur and a plunger; and a needle and/or a catheter that embodies a hub and a cannula which delivers a solution of a material. Various structures are included to provide locking engagements, torque sensitive connections, sufficient interfacing between components and visual conformation of connectors. The syringe assembly can also include an approach to a filter. Moreover, an approach to sterilization is provided.

Abstract: A syringe for administering medicament from a cartridge. The syringe includes a sleeve having an interior for receiving the cartridge extending between a distal hub and a proximal opening. The syringe has a cap selectively covering the proximal opening for retaining the cartridge in the interior of the sleeve. The cap includes a finger grip extending outward from the sleeve for engaging fingers of a user. The syringe also has a plunger rod movably connected to the cap. The plunger rod has a distal connector for selectively connecting the rod to the cartridge plunger when the cartridge is received in the interior of the sleeve to push medicament from the cartridge reservoir as the plunger rod moves with respect to the cap.

Abstract: A syringe handle that is separately formed from a syringe and enabled to be later attached to a syringe is presented along with methods for using the handle. In some embodiments, handles can be attached and then detached from the syringes for re-use. Handles can be ergonomically elongated so as to not only support a user's index and middle fingers, but also his or her ring finger and/or pinkie as well.

Abstract: A medicine injection device comprises a cartridge having a cartridge barrel and a plunger having a plunger shaft slidable within the cartridge barrel. The cartridge may have, e.g., a pre-filled medicine. The medicine injection device farther comprises a body having a proximal end, a distal end, and a cavity in which the cartridge barrel is disposed. The proximal end of the body may optionally form a finger grip. The medicine injection device further comprises a plunger locking mechanism attached to the proximal end of the body. The plunger locking mechanism comprises a member with an aperture slidably engaged with the plunger shaft. The locking mechanism is configured for preventing the plunger from being removed from the cartridge barrel. For example, the plunger shaft may include a locking stop, e.g., a flange, that engages with the aperture in an interference arrangement.

Abstract: A medical device removal system includes a vessel filter repositioning or removal device to remove and/or reposition a medical device, such as a vessel filter. The system includes a gripper to grip a medical device that is located within a body vessel, and a detector, linked to the gripper, to detect the proximity of the medical device to the gripper. The system may also include an output to indicate a signal from the detector.

Abstract: A hand-held syringe includes a handle configured for suspending and using the syringe with a single hand. The handle includes pivotally connected first and second members. The members of the handle may be pivotally connected at intermediate positions along the lengths thereof or at or near ends thereof. The first member is associated with, and may be pivotally connected to, a syringe barrel, while the second member is associated with, and may be pivotally connected to, a syringe plunger. The syringe may be configured for a single-use (i.e., it may be disposable). Applications of use and methods of using a hand-held syringe are also disclosed.

Abstract: A device 560, for administering multiple single doses of a medicated cream, includes a cartridge 562 having a barrel 564 for containing the cream, a plunger 608 for moving the cream from within the cartridge, and a stem 610 for moving the plunger within the cartridge. A carrier 612 is formed with a cartridge-receiving nest 712 for receiving the barrel 564. A plurality of spaced, transaxial grooves 726, 728, 730 and 732 are formed in the carrier 612 for receiving a flange 572 of the cartridge 562 during the dispensing of multiple, successive, single doses of the cream. The carrier 612 is formed with a pair of resilient ears 750 and 752 and a passage 738 for removably retaining the stem 610 with the carrier while allowing axial movement of the stem.

Abstract: A hand-held aspiration apparatus includes a handle configured for suspending and using the syringe with a single hand. The handle includes pivotally connected first and second members. The members of the handle may be pivotally connected at intermediate positions along the lengths thereof. The first member is associated with, and may be pivotally connected to, a syringe barrel, while the second member is associated with, and may be pivotally connected to, a syringe plunger. The members are configured and associated with one another in such a way that movement of portions thereof toward each other moves the plunger proximally through the barrel, which may create a vacuum in the barrel that may facilitate aspiration, and that movement of portions of the members away from one another moves the plunger distally through the barrel. The aspiration apparatus may be configured for a single-use (i.e., it may be disposable). Applications of use and methods of using a hand-held syringe are also disclosed.

Abstract: A syringe control pistol for holding in a user's hand to control the dispensing of fluid from a syringe generally includes front and rear arms pivotly connected at their bottom ends. The front arm includes a front face for receiving pressure from the fingers of the user's hand and a top end including a barrel holder for holding the barrel of the syringe such that its barrel cannot move forward and its plunger extends rearward. The rear arm includes a rear face for receiving pressure from the user's palm and a top end including a roller for bearing against the bearing surface of the plunger for pushing the plunger forward in the barrel to disperse fluid from the syringe as the user's hand squeezes front and rear arms toward one another. A plurality of barrel holders for holding syringes of different sizes is selectively attachable to the front arm.

Abstract: Devices and methods for simultaneous injection or delivery of two or more substances from separate syringes. The syringes are loaded into a device that has a handle and a screw driven mechanism for simultaneously depressing the plungers of the syringes. The user grasps the handle and positions the device. Thereafter, the screw mechanism is used to simultaneously advance the plungers of the syringes thereby simultaneously expelling the substances from the syringes.

Abstract: A syringe is disclosed. The syringe may include a syringe body with a fluid chamber, the syringe body having a proximal end and a distal end, with an extrusion opening at the proximal end; a first slot formed in the syringe body, starting near the proximal end of the syringe body and ending near the distal end of the syringe body; a first sleeve covering the first slot; a thumb grip, the thumb grip including a first slot guide disposed in the first slot, the thumb grip shaped to slide from a first position near the distal end of the syringe body toward a second position near the proximal end of the syringe body; and a plunger disposed in the fluid chamber of the syringe body, the plunger configured to move towards the proximal end of the syringe body in response to pressure applied by a user to the thumb grip, the plunger including a first plunger slot guide disposed in the first slot.

Abstract: The present invention provides minimally invasive devices and methods for accessing the sinuses and their surrounding structures for surgery and other treatments. The anterior ethmoid and maxillary sinuses are accessed and treated under minimal anesthesia with little or no postoperative limitation of activity or adverse symptoms. Direct visual verification of the sinuses and their natural ostia is utilized. Other paranasal sinuses may be treated by this method as well. The sinuses, in particular the maxillary and anterior ethmoid, are accessed via a direct anterior to posterior axis and the natural ostia of those sinuses is directly visualized for placement of a guide-free dilator, in the desired location within the natural ostia. That access to the maxillary ostium is accomplished by the anterior transuncinate “keyhole” approach in which a hole is punched in the uncinate process with the described devices according to the described methods.

Abstract: The present invention provides automatic syringes that can be held with one hand in a pencil-grip in which the fingers (thumb or index finger) operate a forwardly based valve that along with selection of needle diameter and length, control the ingress or egress of fluid from the automatic syringe. These finger-controlled one-handed automatic syringes can be used in image-directed procedures such as ultrasound (sonography)-directed procedures in which the ultrasound probe is controlled with one hand and the automatic syringe with the other, although many other applications are readily apparent to those skilled in the art including biopsy, epidural injections, administration of anesthesia, and detection of blood vessels and body cavities as well as other applications.

Abstract: A reduced profile syringe assembly is provided that includes an overall profile that is substantially similar to the profile of the syringe barrel. The syringe assembly includes a plunger rod that is significantly disposed within the syringe barrel when filled for use, with the plunger rod adapted to be retracted from the syringe barrel during dispensing of the contents of the syringe barrel.

Abstract: Since this syringe has projections provided on the rear surface of a flange of a syringe barrel, when it is inserted in an insertion groove of a cylinder holder, the tips of projections are compressed and the flange is fixed. Consequently, even when a solution having high viscosity is injected at higher pressure, breakage does not occur easily. Further, pressure-receiving area may also be increased by providing a guide defining mounting direction of a syringe, alternatively, a positioning mechanism may be provided so as to obtain mounting at a correct position, or the surface of a flange may be roughened.

Abstract: 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.

Abstract: A dispenser for flowable material includes a cylinder, a piston in and slidable along the cylinder for pressing and thus dispensing flowable material contained in the cylinder, and a shaft extending into the cylinder for sliding the piston. The shaft incorporates a thumb piece for engagement by the thumb of a user to drive the shaft in a forward direction into the cylinder for sliding the piston to dispense flowable material. The thumb piece is slidable along the shaft. A unidirectional clutch between the thumb piece and the shaft is operable in the forward direction to fix the thumb piece to the shaft such that the shaft may be driven forward by the thumb piece and is inoperable in an opposite, rearward, direction to release the thumb piece from the shaft such that the thumb piece can slide rearward along the shaft for operation at another position.

Abstract: The invention relates to a gripping edge (1) for a syringe with: a sleeve (7) with a first opening (9) for attachment to a barrel (2) of the syringe and a second opening (10). The gripping edge (1) comprises a flange (8) that is attached to the sleeve (7) at a distance from the first opening (9). A large number of catches (11), which project radially toward the inside from the inside wall (21) of the sleeve (7), are provided to engage in a groove attached to an outside surface of the barrel (2) or projections (13) and to fasten the sleeve (7) and, over this, the gripping edge (1) to the barrel (2), whereby a considerable number of openings, in particular a considerable number of lengthwise openings (14) and/or a considerable number of transverse openings (15), are cut out in the sleeve (7). As a result, a locking of the gripping edge (1) to the barrel (2) in the case of lower assembly forces is possible, by which a bursting tendency of the barrel (2), in particular during assembly, is considerably reduced.

Abstract: The present invention provides for an injection device including a syringe with a proximal end, a distal end, a needle extending from the distal end, and a plunger inserted into the proximal end. A guard is slidable on the syringe, has a proximal end, a distal end, and is biased from a first position wherein the needle is exposed towards a second position wherein the guard covers the needle. The injection device includes first and second sets of cooperating detents for retaining the guard and syringe in the first and second positions, respectively. A latch member extends proximally from the guard that is engageable by the plunger as the plunger is depressed to release the first set of cooperating detents. Upon release, a spring element biases the guard towards the second position until the second set of cooperating detents engage and secure the guard in the second position.

Abstract: Since this syringe has projections provided on the rear surface of a flange of a syringe barrel, when it is inserted in an insertion groove of a cylinder holder, the tips of projections are compressed and the flange is fixed. Consequently, even when a solution having high viscosity is injected at higher pressure, breakage does not occur easily. Further, pressure-receiving area may also be increased by providing a guide defining mounting direction of a syringe, alternatively, a positioning mechanism may be provided so as to obtain mounting at a correct position, or the surface of a flange may be roughened.

Abstract: A device for use by a medical technician to achieve hemostasis at the site of a puncture wound in the skin of a patient, said device being operable by three fingers of one hand of the medical technician.

Abstract: A catheter syringe conveyor with a needle guard housing is adapted to facilitate the insertion of a catheter into a targeted blood vessel. A catheter syringe is slidably situated within a hand-held housing structure; a syringe holder that is slidably connected to the housing allows a technician to maneuver the catheter syringe up and down within the housing. At least one stabilizer finger is attached to the bottom of the housing. After a blood vessel is penetrated by the needle of the catheter syringe, the technician maneuvers a catheter pusher to lower the catheter off of the needle and into the blood vessel. After the catheter is inserted, the technician is able to slide the catheter syringe back up within the housing to move the needle within the protective walls of the housing for safety, and a syringe lock holds it there securely for safekeeping.

Abstract: A syringe control pistol for holding in a user's hand to control the dispensing of fluid from a syringe generally includes front and rear arms pivotly connected at their bottom ends. The front arm includes a front face for receiving pressure from the fingers of the user's hand and a top end including a barrel holder for holding the barrel of the syringe such that its barrel cannot move forward and its plunger extends rearward. The rear arm includes a rear face for receiving pressure from the user's palm and a top end including a roller for bearing against the bearing surface of the plunger for pushing the plunger forward in the barrel to disperse fluid from the syringe as the user's hand squeezes front and rear arms toward one another.

Abstract: A device for the dosed administration of an injectable product, including a housing with a receptacle for the product and a drive mechanism movable via a dosing element supported displaceably in the housing, wherein the drive mechanism includes engagement elements situated together in groups, the distance between the groups corresponding to a dosing amount of the injectable product and the distance between the engagement elements corresponding to a priming amount of the injectable product, and wherein the dosing element is coupled to the drive mechanism so that the dosing element at one time interacts with a group of engagement elements to administer the dosing amount and at another time interacts with an engagement element to release the priming amount.

Abstract: Since this syringe has projections provided on the rear surface of a flange of a syringe barrel, when it is inserted in an insertion groove of a cylinder holder, the tips of projections are compressed and the flange is fixed. Consequently, even when a solution having high viscosity is injected at higher pressure, breakage does not occur easily. Further, pressure-receiving area may also be increased by providing a guide defining mounting direction of a syringe, alternatively, a positioning mechanism may be provided so as to obtain mounting at a correct position, or the surface of a flange may be roughened.

Abstract: An intravenous catheter introducing device includes a needle hub slidably inserted into a barrel and holding a needle cannula, a biasing member disposed to bias the needle hub to a rear position so as to retract the needle cannula in the barrel, and an easy release unit including an engaging wall segment which is attached to an outer surface of the barrel, two flexible squeezed wall segments which extend from the engaging wall segment and which is squeezable so as to move two latch members to steer clear of a retained end of the needle hub through an access hole in the barrel, thereby permitting the biasing member to bias the needle hub towards the rear position.

Abstract: A syringe which disperses medicate across a zone in the body during apparent conventional operation. The improved syringe includes a barrel, a plunger, and an operating cylinder. In operation, the needle of the syringe is inserted into the body at the distal portion of the portion of the body which is to receive the medicate. A single arm is attached to the barrel and passes through an operating cylinder with a thumb rest on its top. As a result, in operation, the user draws the single arm up to the thumb rest, thus causing the syringe to withdraw during injection and leaving a patch of medicate during operation.

Abstract: A syringe including a front end and a rear end. A front portion of the syringe having an axially extending hollow needle that projects from the front end. The rear end of the needle is in fluid communication with a space that extends substantially to the rear end of the syringe. A plunger extends axially and is movable to and fro in the space and is designed such that, when drawn out, it sucks liquid through the needle and, when pressed in, discharges liquid through the needle. A radially projecting flange element in the front portion of the syringe is designed in such a way that it can be gripped between the thumb and middle finger of a user's hand. The syringe is dimensioned so as to permit injection using the index finger of the same hand. A capsule device for at least partially accommodating a syringe. A syringe device.

Abstract: An injection retarder for mechanically/manually reducing the rate of delivery of a hand-held hypodermic syringe and a syringe having same are provided. The injection retarder and syringe include means for selectively slowing a rate of progress of the plunger into the barrel. For example, a thumb tip rest is provided against which the thumb may be braced, thereby providing additional mechanical advantage and much finer manual control of the rate of injection. Alternatively, a set of teeth and an opposing mating tooth or pawl are provided which increase friction and slow the progress of the plunger.