US1718596A - Automatic syringe - Google Patents

Automatic syringe Download PDF

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Publication number
US1718596A
US1718596A US21139327A US1718596A US 1718596 A US1718596 A US 1718596A US 21139327 A US21139327 A US 21139327A US 1718596 A US1718596 A US 1718596A
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Prior art keywords
syringe
barrel
plunger
body
rod
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Expired - Lifetime
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Arthur E Smith
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Arthur E Smith
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00Apparatus requiring external operation and adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container without regard to weight and to deliver it
    • G01F11/02Apparatus requiring external operation and adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container without regard to weight and to deliver it with measuring chambers which expand or contract during measurement
    • G01F11/021Apparatus requiring external operation and adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container without regard to weight and to deliver it with measuring chambers which expand or contract during measurement of the piston type
    • G01F11/025Apparatus requiring external operation and adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container without regard to weight and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons
    • G01F11/026Apparatus requiring external operation and adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container without regard to weight and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons of the gun type
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/24Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576Constructional features or modes of drive mechanisms for piston rods
    • A61M5/31583Constructional features or modes of drive mechanisms for piston rods based on rotational translation, i.e. movement of piston rod is caused by relative rotation between the user activated actuator and the piston rod
    • A61M5/31586Constructional features or modes of drive mechanisms for piston rods based on rotational translation, i.e. movement of piston rod is caused by relative rotation between the user activated actuator and the piston rod performed by rotationally moving or pivoted actuator, e.g. an injection lever or handle
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/3159Dose expelling manners
    • A61M5/31593Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir
    • A61M5/31595Pre-defined multi-dose administration by repeated overcoming of means blocking the free advancing movement of piston rod, e.g. by tearing or de-blocking
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/24Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • A61M2005/2403Ampoule inserted into the ampoule holder
    • A61M2005/2407Ampoule inserted into the ampoule holder from the rear
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/24Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • A61M2005/2485Ampoule holder connected to rest of syringe
    • A61M2005/2496Ampoule holder connected to rest of syringe via pivot
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M2005/3152Piston or piston-rod constructions, e.g. connection of piston with piston-rod including gearings to multiply or attenuate the piston displacing force

Description

A. E. SMITH June 25, 19.29.

AUTOMAT I C SYRINGE Filed Aug. 8, 1927 2 Sheets-Sheet INVENTOR. A E. S/V/ TH ATTORNEY.

June 25, 1929. A. E. SMITH A AUTOMATIC SYRINGE Filed Aug. 8, 1927 2 Sheets-Sheet ATTORNEY.

Patented .iune 25,. 1929.

Unirse srATEs F F li C E .AR'IHUJV E. SMITH, 0F LOS ANGELES, CALIFORNIA..

AUTOMATIC SYRINGE.

Applicationfiled August 8,

This

syringes.

'lhe general object of my invention is to provide an improved syringe which is adapted to receive. an alnpule for injection of the drug contained in the ampule.

Another object of the invention is to provide a syringe having novel means for expelling the contents of the syringe.

A further object of the invention is to provide a syringe having novel means for engaging the hand of the operator.

A still further object of my invention is to provide a syringe having novel means for loading.

An additional object of the invention is to provide novel means for readily forming a fluid tight joint between a syringe and an ampule. A

A further object of the invention is to provide a syringe with means for gauging the amount of liquid injected. l

A further object of the invention is to provide a syringe with novel means allowing its use with ampules which contain various amounts of medicinal preparations.

vOther objects and advantages of this invention will be apparent from the following description taken in connection with the accompanying drawings wherein Fig. 1 is a side elevation of my improved invention relates to hypodermic syringe showing the manner of holding it when making an injection.

Fig. 2 is a front view of the syringe with the hypodermic needle removed.

Fig.- 3 is an enlarged central longitudinal section through my improved syringe.

Fig. 4 is a View similar to Fig. 3 showing the position the various parts of the syringe assume wheny moved to expel the contents of an ampule in the syringe.

Fig. 5 is a vertical cross section of the syringe taken on line 5-5 of Fi 3.

Fig.` 6 is a side elevation o? the syringe showing the manner in which the ampule 1s placed therein.

Fig. 7 is a fragmentary view showing the actuating pawls in a released position.

Fig. 8 is a central longitudinal section through an ampule which may be used in connection with my improved syringe, and

Fig. 9 is an enlarged fragmentary longitudinal section of the discharge end ofthe ampule shown in Fig. 8.

Referring to the drawings by reference 1927. Serial No. 211,393.

characters I have indicated my improved syringe generally at 10. rllhis syringe is preferably made of metal and is particularly designed for use with anampule 11 which may be made of glass as shown in detail in Fig. 8. The syringe 10 comprises a barrel 12 pivotally hinged as at 13 to a body portion 14. The barrel 12 is preferably provided with a plurality of spaced viewing apertures or slots 15.

At the discharge end of the barrel 12 I pro-- vide a tip 16 which includes a central tapered conical aperture 17. The aperture 17 communicates through an aperture 18 with an aperture l9.which extends out through a reduced conical end portion 2() of the tip. The tip 16 may be secured to the barrel 12 by screw threads as shown at 21 or in any other suitable manner. The tip 16' is adapted to position and support a hypodermic needle indicated generally at 22. The hub of the hypodermic needle 22 may frictionally engage the reduced conical end portion 2O of the tip 16 as shown in the drawings, or it may have screw threaded engagement therewith or other suitable attaching means may be used.

The barrel 12 is preferably retained in operative engagement with the body 14 by a latch 23. As shown in the drawings7 this latch 23 comprises a spring pressed ball 24 mounted in a housing 25 arranged on the barrel .12. Vhen the barrel 12 is in a closed position as shown in Figs. 1, 3 and 4, the

ball 24 is adapted to abut the under side 0f a pin 26 in the body 14 and thus prevent the barrel '12 from becoming out of alignment with the body 14. The housing 25 as shown also acts as a bearing through which the pivot pin 13 passes.

The body portion 14 includes a cylindrical portion 27 of approximately the same diameter as the barrel 12 and a gripping portion or'handle 28. Arranged in the cylindrical portion 27 and supported in an elongated bearing 29 I provide a plunger rod 30 which includes a shank 31 having a toothed rack 32 provided on its under surface and a head 33 provided at its forward end for engagey ment. with the stopper of an ampule.

Engaging the gear teeth 32 of the plunger rod and rotatably mounted within the handle 28 I provide a gear 34 having secured thereto a ratchet 35. A spring 36 anchored to the handle 28 and secured to the gear 34 applies-clockwise tension to the gear 34.l

The tendency of the spring 36 to rotater ger 43 is pivoted at 45 and normally urged to an extended position by a flat spring 46. When the trigger 43 is retracted to the position shown in Fig. 4, the pawl 42 rotates the gear 34 and causes the plunger rod 30 to move `forwardly within the barrel 12 to engage the stopper of an ampule therein.

For releasing the dog 37 and the pawl 42 to allow the yspring 36 to rotate the vgear 34 to retract. the plunger rod 30 I provide a stirrup 39. This stirrup 39 includes a slotted vrecess 39a in which the hub of the ratchet 35 is positioned and a surtace 39" which abuts the dog 37 and the pawl 42. For actuating the stirrup 39 to release the dog and pawl I provide a projection 39c on the stirrup which extends out through a slot 40 in the side of the handle 28 and terminates in an enlarged button 41 (see Fig; 6).

To retract. the plunger rod 3() the button 41 on the projection 39c of the stirrup 39 is moved downwardly thereby disengaging the dog 37 and the pawl 42 from the ratchet 35 and allowing the spring 36 to rotate the gear 34 in a clockwise direction, and as the gear 34 meshes with thegear teeth 32 of the plunger rod shank 31, the plunger rod 30 will be moved rearwardly to a retracted position as shown in Fig. 3.

My improved ampule 11, which is used in connection with my improvedsyringe 10, is shown in detail in Figs. 8 and 9 as comprising a hollowcylindrical body 47 having a tapered open end portion 48 and a straight open end 49 which is adapted to be closed y by a stopper 50. `The tapered end portion 48 of the. ampule is provided with an outer annular bead 51 y'over which I may fit a reslhentcap 52 which comprises a body portion 53 including a skirt 54 and a reduced tip 55. Within the body portion 53 I provide an annular groove 56 in which the bead 5110i' the ampule is positioned.

Communicating with the groove 56 I provide a recess 57 which extends into the tip 55 and which may be of approximately the same size as the adjacent opening in the tapered end of the ampule.

To prepare this ampule for use in the syringe 10 it is only necessary to remove the tip 55 of the cap by cutting it at its juncture with the body portion, thereby exposing the recess 57 which then forms an aperture through which the contents ot the arnpule may pass. After removing the tip 55' of the ampule cap the ampulev is inserted into the s yrrnge barrel 12 as shown in Fig. 6.

To break the syringe for loading as shown in Fig. 6, downward pressure is applied to the forward end of the barrel 12 which tends to raise the rear end thereof and forces the ball 24 of the latch 23 to be retracted and pass by the latch pin 26. After the ampule has been inserted the barrel 12 is again placed in au operative position as shown in Figs. 1, 3 and 4. A,

, lo eject the contents of the ampule after the ampule has been placed in the syringe tive position, vthe trigger 43 or operating member is moved to move the pawl 42, ratchet 35, and gear 34. This action will move the plunger rod forward within the barrel 12 as previously described. As the plunger rod 3() moves forward the head 33 thereof will engage the stopper 5() of the ampule and force it toward the tapered end of the ampule. Thus the stopper 50 acts as a piston to torce the contents of theampule out through the tapered end ot' the ample, through the tip 16 and into the llypodermic needle 22. When the trigger has been retracted it is released and can then be again actuated. y

As pressure is applied on the head 33 to move the stopper 50 the portion ot' the body 53 which is adjacent the bead 51 or some part ot' the skirt 54 of the ampule cap 52 will be forced into very tight engagement with the surface of the recess 17 in the tip 16. The more pressure applied to move the stopper the tighter the cap 52 will engage ille tapered recess 17 of the tip 16, thus creating a fluid tight seal between the discharge end of the ampule and the syringe.

By providing the apertures 15 in the liarel 12 of the syringe, sight openings are ormed through which the contents of the ampule will be visible and so that the movement of the stopper 50 and the extent to which the contents-of the ampule have been discharged may be readily observed by the operator. i

' If desired the discharge mechanism of the 'syringe may be so arranged as to expel a certain predetermined equal amount of the ampule contents on each full depression of the trigger 43. For example, the am ule mayl contain eight cubic centimeters of uid and each operation of the trigger may be made to eject two cubic centimeters although the size of the ampule and the amount discharged at each operation may be varied.

As shown in Fig. 1, I prefer to hold the syringe, when making an injection, by grasping the handle 28 in the palm of the hand. I then place the iirst finger alongside of the barrel 12 and operate the trigger 43 with the second finger. When the syringe it thus held the exertion required to move the trigger does not move the syringe when it is actuated Af to expel the contents of the ampule.

barrel 12 and the barrel placed in an opera- Also when the syringe is so held the thumb is in a position whereby a slight movement thereof will move the button 41 to release the dog 37 and pawl 42 to thereby retract the plunger rod 30.

F rom the foregoing description it will be apparent that I have provided an improved making fluid tight contact between the forward end of the ampule andthe barrel, a plunger' movable in said body, an operating member, and means connecting the operating member and the plunger to cause said plunger to move along said body.

2. A syringe including a barrel and a body portion, a plunger rod movable into said barrel, gear teeth on said plunger rod, a gear in said body meshing with the gear teeth ot' said plunger rod, a ratchet connected with said gear, means to rotate said ratchet to cause said gear to rotate to thereby move said plunger rod, holding means to prevent movement of said ratchet in one direction, means to release said holding means, and means to pivot said barrel on said body to allow access to the rear end of said barrel.

3. A syringe including a barrel and a body portion, means to retain said barrel in opertive alignment with said body, means, permitting movement of said barrel out of alignment with said body, a plunger rod in said body, gear teeth on said plunger rod, a gear in said body meshing with thegear teeth of said plunger rod, a ratchet connected with said gear and means to actuate said ratchet to cause said gear to rotate to thereby move said plunger rod.

4. A syringe including a barrel and a body portion, said barrel being hinged to said body and releasable means to retain said barrel in operative engagement with said body, a plunger rod in said body, gear teeth on said plunger rod, a gear in said body in mesh with the gear teeth of said plunger rod, means to rotate said gear to advance said plunger rod, resilient means normally urging said gear to rotate to retract said plunger rod, holding means normally acting to prevent rotation of said gear in a direction to retract said plunger rod, and means to release said holding means to thereby allow said. lunger rod to be retracted.

5. n an ampule/holding syringe, a body portion and a barrel, said barrel being hinged to said body, releasable latch means to retain said barrel in operative alignment with said body portion, a bearing supported in said body, a plunfrer rod positioned in said bearing and movable into said barrel, an enlarged head on said plunger rod adapted to engage the stopper of an ampule positioned in said barrel, a rack on said plunger rod, a gear in said body in mesh with the teeth of the plunger rod, a ratchet connected to said gear, resilient means normally urging said gear to rotate to retract said plunger rod, a pivoted dog, resilient means normally urging said dog into engagement with said ratchet to prevent movement of said gear in one direction, a trigger pivotally mounted on said body, resilient means to normally urge said trigger to an extended position, a pawl pivotally mounted on said trigger, resilient means to urge .said pawlinto engagement with said ratchet whereby when said trigger is actuated said ratchet will be moved to move said gear to advance said plunger rod, means to simultaneously move said dog and said pawl out of engagement with said ratchet, a tip detachably secured on said barrel and having means thereon for receiving a hypodermic needle and means in said tip adapted to engage the discharge end of an ampule positioned in said barrel.

In testimony whereof, I hereunto aiix my signature.

ARTHUR E. SMITH.

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Cited By (58)

* Cited by examiner, † Cited by third party
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US2417140A (en) * 1945-04-17 1947-03-11 Francis J Swanson Vaccinating gun
US2472116A (en) * 1945-10-18 1949-06-07 Emma C Maynes Syringe holder
US2565081A (en) * 1948-09-15 1951-08-21 Emma C Maynes Device for operating hypodermic syringes
US2624338A (en) * 1950-10-31 1953-01-06 Frank C Moore Dispensing gun
US2632445A (en) * 1951-10-20 1953-03-24 Sr John L Kas Dosing hypodermic syringe
US2653604A (en) * 1950-12-19 1953-09-29 Jr George N Hein Injection device
US2722931A (en) * 1951-01-17 1955-11-08 Becton Dickinson Co Injection device
US2892457A (en) * 1956-07-30 1959-06-30 Sturtz Harry Hypodermic syringe hand grip
DE1077384B (en) * 1958-03-22 1960-03-10 Hauptner Fa H Ampoules syringe, especially for use tieraerztlichen
US2942603A (en) * 1958-01-08 1960-06-28 Paul G T Geyer Artificial insemination gun
US3016897A (en) * 1959-01-13 1962-01-16 John W Kendrick Injection means for injecting serum, vaccine, virus and the like into animals, and method
US3160156A (en) * 1961-01-16 1964-12-08 Mattox And Moore Inc Artificial insemination device
US3474787A (en) * 1967-04-05 1969-10-28 Sidney Grant Hypodermic syringe
US3797487A (en) * 1970-10-29 1974-03-19 Woelm Fa M Hypodermic syringe with clutch for aspiration
US3949748A (en) * 1974-09-26 1976-04-13 Oscar Malmin Injection syringe having aspirating and metering capabilities
FR2461238A1 (en) * 1979-07-02 1981-01-30 Eppendorf Geraetebau Netheler Action repetitive pipette
FR2464460A1 (en) * 1979-08-31 1981-03-06 Suovaniemi Finnpipette Pipette
US4465478A (en) * 1982-10-14 1984-08-14 Collagen Corporation Syringe force amplification device
US4472141A (en) * 1981-10-26 1984-09-18 Dragan William B All purpose dental syringe
US4655226A (en) * 1983-12-16 1987-04-07 Southland Instruments, Inc. Disposable biopsy needle unit
US4659327A (en) * 1985-11-26 1987-04-21 Dentsply Research & Development Corp. Multiple dosage syringe
FR2607011A1 (en) * 1985-08-14 1988-05-27 Cassou Robert Device for withdrawing, preserving or injecting liquid substances, of organic type
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US4968303A (en) * 1988-09-27 1990-11-06 Eli Lilly And Company Hypodermic syringe holder
US5022563A (en) * 1990-01-10 1991-06-11 Electron Fusion Devices, Inc. Dispenser-gun assembly for viscous fluids and dispenser therefor
US5115816A (en) * 1991-01-24 1992-05-26 Peter F. Lee, Inc. Single-hand controlled fine needle aspiration device
US5375740A (en) * 1991-04-26 1994-12-27 Toppan Printing Co., Ltd. Manual dispenser for dispensing predetermined amounts of viscous material through actuation of a trigger
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US6050453A (en) * 1995-10-11 2000-04-18 Henkel Kommanditgesellschaft Auf Aktien Actuator grip and apparatus provided therewith
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US20060276753A1 (en) * 2005-06-01 2006-12-07 Victor Kronestedt Device for delivering medicament
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US20070201992A1 (en) * 2002-07-24 2007-08-30 M2 Medical A/S Infusion Pump System, an Infusion Pump Unit and an Infusion Pump
US20080098564A1 (en) * 2006-10-24 2008-05-01 Fojtik Shawn P Locking Hinges for Syringe Handles, Syringes Including Locking Hinges, and Associated Methods
US20080132850A1 (en) * 2006-10-24 2008-06-05 Hideo Fumiyama Syringe With Rotatable Element, Infusion/Aspiration Systems Including the Syringe, and Associated Methods
US20090088702A1 (en) * 2007-10-01 2009-04-02 Fojtik Shawn P Methods for manually injecting/aspirating fluids through small diameter catheters and needles and manual injection/aspiration systems including small diameter catheters and needles
US20090095777A1 (en) * 2007-10-11 2009-04-16 Lucas Packaging Group,Inc. Dispensing pen
US20090308895A1 (en) * 2008-06-13 2009-12-17 Reynolds David L Rack and pinon drive for by-pass cartridge
EP2196233A1 (en) * 2008-12-12 2010-06-16 Sanofi-Aventis Deutschland GmbH Resettable drive mechanism for a medication delivery device and medication delivery device
EP2196232A1 (en) * 2008-12-12 2010-06-16 Sanofi-Aventis Deutschland GmbH Drive mechanism for a medication delivery device and medication delivery device
US20100249719A1 (en) * 2007-10-01 2010-09-30 Covidien Ag Methods for Manually Injecting/Aspirating Fluids Through Small Diameter Catheters and Needles and Manual Injection/Aspiration Systems Including Small Diameter Catheters and Needles
US20100268116A1 (en) * 2007-10-23 2010-10-21 Aspiration Medical Technologies, Llc Syringe with rotatable element, aspiration systems including the syringe, and associated methods
US20110163115A1 (en) * 2010-01-04 2011-07-07 Verizon Patent And Licensing Inc. Epoxy injection controller
US7988677B2 (en) 2001-05-24 2011-08-02 Covidien Ag Hand-held, hand-operated power syringe and methods
WO2011154480A3 (en) * 2010-06-11 2012-03-01 Sanofi-Aventis Deutschland Gmbh A drive assembly for a medication delivery device and medication delivery device
JP2012511359A (en) * 2008-12-12 2012-05-24 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Resettable drive mechanism for drug delivery devices, and drug delivery devices
US20120248152A1 (en) * 2009-12-09 2012-10-04 Primequal Sa Ejection device for ejecting small doses
US20130053816A1 (en) * 2011-07-25 2013-02-28 Tandem Diabetes Care, Inc. Multi-reservoir infusion pump systems and methods
WO2014022750A1 (en) * 2012-08-03 2014-02-06 Pdap, Llc Dispensing and aspirating system including a syringe holding and actuation device
US20140054327A1 (en) * 2012-08-23 2014-02-27 Prince Castle LLC Rodless Dispenser
US8968258B2 (en) 2008-12-12 2015-03-03 Sanofi-Aventis Deutschland Gmbh Resettable drive mechanism for a medication delivery device and medication delivery device
US20150133976A1 (en) * 2013-07-25 2015-05-14 Cardiovascular Systems, Inc. Rotational atherectomy device with exchangeable drive shaft and meshing gears
US9089652B2 (en) 2008-12-12 2015-07-28 Sanofi-Aventis Deutschland Gmbh Drive mechanism for a medication delivery device and medication delivery device
US9168562B2 (en) 2013-10-10 2015-10-27 Ann Gilchrist Syringe-assist device and method for utilizing the same
US9750871B2 (en) 2012-05-17 2017-09-05 Tandem Diabetes Care, Inc. Pump device with multiple medicament reservoirs
US9962486B2 (en) 2013-03-14 2018-05-08 Tandem Diabetes Care, Inc. System and method for detecting occlusions in an infusion pump

Cited By (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417140A (en) * 1945-04-17 1947-03-11 Francis J Swanson Vaccinating gun
US2472116A (en) * 1945-10-18 1949-06-07 Emma C Maynes Syringe holder
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