US3082914A - Dispensing device - Google Patents

Dispensing device Download PDF

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Publication number
US3082914A
US3082914A US772339A US77233958A US3082914A US 3082914 A US3082914 A US 3082914A US 772339 A US772339 A US 772339A US 77233958 A US77233958 A US 77233958A US 3082914 A US3082914 A US 3082914A
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Prior art keywords
casing
cap
plug
opening
plunger
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Expired - Lifetime
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US772339A
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Gill Wilbur
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
    • A61M2005/3106—Plugs for syringes without needle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
    • A61M5/31583—Constructional 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
    • A61M5/31586—Constructional 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
    • A61M5/3159—Dose expelling manners
    • A61M5/31593—Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir

Definitions

  • the objects of the invention are obtained by providing a tubular container containing a plunger and an opening at one end closed by a plug.
  • the plug and plunger are both operated by a left (or right) handed screw and a cap controlling the screw is provided at the end opposite the plug which cap is constructed so as to control the screw in such a way that rotating the cap and screw to the right (or left) first removes the plug and then operates the plunger to force the contents through the opening.
  • the device of the invention is useful for carrying and dispensing any kind of liquids, pastes or crystals which one does not wish to touch, for example.
  • a special use is for the injection of vitamin compositions into the animal body.
  • FIG. l is a cross sectional view of the device of the invention as applied to a hypodermic injection device.
  • FIG. 2 is a cross sectional view of the device of the invention in the condition for carrying the liquid, paste or powder.
  • FIGS. 3 and 4 are views similar to FIG. 2 but showing what takes place as the cap is rotated.
  • the device of the invention comprises a tubular casing 10.
  • the lower end of the casing slopes inwardly and contains an axial opening 11 and the opposite end has an opening of the same size as the tubular portion and contains a flange 12.
  • an annular depression 13 may be provided adjacent the lower end (see FIG. l) in which a projecting ring may be positioned to snap into a similar depression 21 on an additional outer casing 20.
  • the top or flanged end of the casing 10 is covered by a cap 21 which is shown as made in two parts although it is obvious that it can be made of one integral ⁇ part especially when it is made of relatively flexible plastic material such as polyethylene or polypropylene.
  • Axially projecting from the center of the cap 21 is a rod 22 the upper portion 23 of which is provided with left handed screw threads and the lower portion 24 of which is smooth surfaced and ends in plug 25 which can be threaded, if desired.
  • the center portion of cap is united to the ring 26 which contains an internal flange 27 which approximately matches the external flange 12 on casing 10.
  • flange 27 and casing 10 are not so tight to prevent passage of air therethrough or, if desired, the ange 27 may be provided with an air hole to eliminate suction.
  • the plug 25 is in place in opening 11 of the casing there is a space 3l) between the flanges 12 and 27 as shown in FIGS. l and 2.
  • the provision for the space 30 is a very important feature of the device for reasons which will be further described below when the operation of the device is described.
  • the plunger 40 is slidable within the casing 10 and Mice comprises the screw threads 41 interiitting with the threads of the screw portion 23 of projecting rod 22.
  • the two ends 42 and 43 of the plunger 40 fit tightly within the tubular portion of the casing 10 but the intermediate portion 44 is reduced in size to reduce the friction of the plunger.
  • a longitudinal groove 45 is provided in the intermediate region 44 of reduced size.
  • a plug 15 is united to the casing 10 so as to project inwardly and extend into the groove 45. This plug prevents the plunger 40 from turning when the cap 21 and screw 23 is rotated. ⁇ It is found, however, that the device works very well without the plug 15.
  • the lower end 42 of the plunger 40 fits clo-sely about the rod end 24 so as to wipe said rod when said plunger is moved toward the plug end of chamber 10. If desired the end 42 of the plunger may be made to fit exactly against the internal conical portion 16 of casing 10 so as to squeeze the last portion of the contents from casing 10.
  • the Operation of the Device The operation of the device will be described in connection with the injection of vitamins.
  • the invention is of special utility in this connection since many vitamins are solids which lose their potency when dissolved in' a solvent and stored for any length of time. It is, therefore, advantageous to dissolve these vitamins lunder sterile conditions immediately before injecting.
  • the powdered vitamins are inserted into the outer casing 20 of FIG. l which has been sterilized and the casing 10 which has been filled with the desired solvent for the vitamins is inserted into casing 20 until the ring or projection at 13 snaps into place.
  • the casing 20 is provided with a sterile hypodermic needle 50' (only partly shown). When the parts are assembled the cap 21 is turned to the right.
  • the first movement produced by the screw thread 23 on turning the cap 21 to the right will be the movement of the cap upwardly from the position shown in FIG. 2, for example, to the position shown in FIG. 3.
  • the cap is caused to move upwardly rather than the plunger 40 being moved downwardly because the force required to move the cap is less than the force required to move the plunger 40.
  • the flange 27 of cap ring 26 meets the flange 12 of casing 10 it is no longer possible for the cap to move further in the upward or outward direction with respect to casing 10.
  • the movement of the cap 21 upwardly withdraws plug 25 from opening 11 so that the liquid or contents are adapted to flow through said opening 11.
  • the cap 21 When the cap 21 has moved up until in the position shown in FIG. 3 so that flanges 27 and 12 are in contact, further rotation of said cap in the same direction forces the piston 40 to move down towards opening 11 so as to expel the contents.
  • the liquid dissolves the powdered vitamins and is injected through needle 50 into the animal body. If mixing is desired the cap 211 may be turned one way and then the other to draw the mix back into the casing 1l) and force it out again, etc.
  • the device is also useful for carrying and injecting accelerators or catalysts into resin forming compositions especially since many such catalysts and accelerators cause skin disturbances if they come into contact therewith.
  • the casings 10 and 20 are very satisfactory when -rnade of glass or transparent plastic material, the remaining parts may be made of metal or opaque or transparent plastic material although obviously the materials of which said parts are made should be inert to the contents with which the device is to be used.
  • a ldispensing device for mixing two materials immediately before dispensing comprising a rst tubular casing having walls which extend inwardly at a first end with an axial opening of smaller size than the internal diameter of said casing therein, the other end of said first tubular casing being open and having an exterior 'flange Ythereon, cap means rotatably mounted on said open end -of said first tubular casing, said cap means having a ring portion with an internal fiange adapted to make Contact with the exterior flange of said casing, the top part of said cap being extended over the flange at said other end of said casing, the flange on said ring portion being spaced from the top part of said cap a distance greater than the width of the tiange on the casing, said cap containing .a projecting portion extending axially of the casing for the length of the casing, said projecting portion ending in a plug adapted to close the opening at the first end of said casing from the inside of the latter, a piston

Description

United States 3,082,914 DISPENSING DEVICE Wiihnr Gill, 8709 NE. Prairie Road, Skokie, Ill. Filed Nov. 6, 1958, Ser. No. 772,339 i Claim. (ci. 222-135) atent The objects of the invention are obtained by providing a tubular container containing a plunger and an opening at one end closed by a plug. The plug and plunger are both operated by a left (or right) handed screw and a cap controlling the screw is provided at the end opposite the plug which cap is constructed so as to control the screw in such a way that rotating the cap and screw to the right (or left) first removes the plug and then operates the plunger to force the contents through the opening.
The device of the invention is useful for carrying and dispensing any kind of liquids, pastes or crystals which one does not wish to touch, for example. A special use is for the injection of vitamin compositions into the animal body.
`In the drawing:
FIG. l is a cross sectional view of the device of the invention as applied to a hypodermic injection device.
FIG. 2 is a cross sectional view of the device of the invention in the condition for carrying the liquid, paste or powder.
FIGS. 3 and 4 are views similar to FIG. 2 but showing what takes place as the cap is rotated.
The device of the invention comprises a tubular casing 10. The lower end of the casing slopes inwardly and contains an axial opening 11 and the opposite end has an opening of the same size as the tubular portion and contains a flange 12. If desired an annular depression 13 may be provided adjacent the lower end (see FIG. l) in which a projecting ring may be positioned to snap into a similar depression 21 on an additional outer casing 20.
The top or flanged end of the casing 10 is covered by a cap 21 which is shown as made in two parts although it is obvious that it can be made of one integral` part especially when it is made of relatively flexible plastic material such as polyethylene or polypropylene. Axially projecting from the center of the cap 21 is a rod 22 the upper portion 23 of which is provided with left handed screw threads and the lower portion 24 of which is smooth surfaced and ends in plug 25 which can be threaded, if desired. The center portion of cap is united to the ring 26 which contains an internal flange 27 which approximately matches the external flange 12 on casing 10. The i'lt between flange 27 and casing 10 is not so tight to prevent passage of air therethrough or, if desired, the ange 27 may be provided with an air hole to eliminate suction. When the plug 25 is in place in opening 11 of the casing there is a space 3l) between the flanges 12 and 27 as shown in FIGS. l and 2. The provision for the space 30 is a very important feature of the device for reasons which will be further described below when the operation of the device is described. There may be a threaded engagement between flange 27 and casing 10.
The plunger 40 is slidable within the casing 10 and Mice comprises the screw threads 41 interiitting with the threads of the screw portion 23 of projecting rod 22. The two ends 42 and 43 of the plunger 40 fit tightly within the tubular portion of the casing 10 but the intermediate portion 44 is reduced in size to reduce the friction of the plunger. In addition a longitudinal groove 45 is provided in the intermediate region 44 of reduced size. A plug 15 is united to the casing 10 so as to project inwardly and extend into the groove 45. This plug prevents the plunger 40 from turning when the cap 21 and screw 23 is rotated. `It is found, however, that the device works very well without the plug 15. The lower end 42 of the plunger 40 fits clo-sely about the rod end 24 so as to wipe said rod when said plunger is moved toward the plug end of chamber 10. If desired the end 42 of the plunger may be made to fit exactly against the internal conical portion 16 of casing 10 so as to squeeze the last portion of the contents from casing 10.
The Operation of the Device The operation of the device will be described in connection with the injection of vitamins. The invention is of special utility in this connection since many vitamins are solids which lose their potency when dissolved in' a solvent and stored for any length of time. It is, therefore, advantageous to dissolve these vitamins lunder sterile conditions immediately before injecting. In such a process the powdered vitamins are inserted into the outer casing 20 of FIG. l which has been sterilized and the casing 10 which has been filled with the desired solvent for the vitamins is inserted into casing 20 until the ring or projection at 13 snaps into place. The casing 20 is provided with a sterile hypodermic needle 50' (only partly shown). When the parts are assembled the cap 21 is turned to the right. The first movement produced by the screw thread 23 on turning the cap 21 to the right will be the movement of the cap upwardly from the position shown in FIG. 2, for example, to the position shown in FIG. 3. The cap is caused to move upwardly rather than the plunger 40 being moved downwardly because the force required to move the cap is less than the force required to move the plunger 40. However, when the flange 27 of cap ring 26 meets the flange 12 of casing 10 it is no longer possible for the cap to move further in the upward or outward direction with respect to casing 10. The movement of the cap 21 upwardly withdraws plug 25 from opening 11 so that the liquid or contents are adapted to flow through said opening 11.
When the cap 21 has moved up until in the position shown in FIG. 3 so that flanges 27 and 12 are in contact, further rotation of said cap in the same direction forces the piston 40 to move down towards opening 11 so as to expel the contents. In the chamber of the second casing 20, the liquid dissolves the powdered vitamins and is injected through needle 50 into the animal body. If mixing is desired the cap 211 may be turned one way and then the other to draw the mix back into the casing 1l) and force it out again, etc.
The device is also useful for carrying and injecting accelerators or catalysts into resin forming compositions especially since many such catalysts and accelerators cause skin disturbances if they come into contact therewith.
' The casings 10 and 20 are very satisfactory when -rnade of glass or transparent plastic material, the remaining parts may be made of metal or opaque or transparent plastic material although obviously the materials of which said parts are made should be inert to the contents with which the device is to be used.
The features and principles underlying the invention described above in connection with specific exemplications will suggest to those skilled in the art many other modifications thereof. lt is accordingly Adesired that the appended claim shall Anot be limited to any specific feature or details thereof.
A ldispensing device for mixing two materials immediately before dispensing comprising a rst tubular casing having walls which extend inwardly at a first end with an axial opening of smaller size than the internal diameter of said casing therein, the other end of said first tubular casing being open and having an exterior 'flange Ythereon, cap means rotatably mounted on said open end -of said first tubular casing, said cap means having a ring portion with an internal fiange adapted to make Contact with the exterior flange of said casing, the top part of said cap being extended over the flange at said other end of said casing, the flange on said ring portion being spaced from the top part of said cap a distance greater than the width of the tiange on the casing, said cap containing .a projecting portion extending axially of the casing for the length of the casing, said projecting portion ending in a plug adapted to close the opening at the first end of said casing from the inside of the latter, a piston slidably mounted in said casing, said piston having a length equal to at least about half the length of said tubular casing, cooperating means on the exterior -surface of said piston and the interior surface of said 'casing to retain said piston in a relatively fixed angular relationship with respect to the axis of said casing Yregardless of the longitudinal position of the piston within said casing, said `piston having Ian axial bore through which said projecting portion passes, the end of said projecting portion 'nearest the cap being externally threaded, at least a portion of the axial bore of said piston being internally threaded to match the threads of said projecting portion whereby rotation of the cap in one direction iirst moves said cap upwardly and the plug away from the opening at the opposite end of the casing and further rotation in 'the same direction moves said piston tov/ard said opening to force the contents through the latter, a second tubular casing surrounding said first casing and slidably mounted with respect to said first casing, said second casing having a first end including inwardly extending walls, parallel walls, and an end wall terminating in an opening, sealing means on the outer portion of the first end of the first casing providing a liquid tight seal between the first and second tubular casing so that the first casing can act as a piston for said second casing whereby liquid material from the first casing may be mixed with material in the second casing and the mixture expressed from the opening in the second casing by utilizing the first casing as a piston in the second casing.
References Cited in the file of this patent UNITED STATES PATENTS Re. 13,556 Craven Apr. 22, 1913 993,511 Craven May 30, 1911 1,609,479 Loeben Dec. 7, 1926 2,165,825 Von Bultzingslowen July 11, 1939 2,272,641 Mureau Feb. 10, 1942 2,276,722 Hillman et al Mar. 17, 1942 2,329,367 Weisenberg Sept. 14, 1943 2,349,726 Holler May 23, 1944 2,353,355 Okies July 11, 1944 2,626,087 Howard et al. Jan. 20, 1953 2,738,905 Olson Mar. 120, 1956 2,841,145 Epps July 1, 1958
US772339A 1958-11-06 1958-11-06 Dispensing device Expired - Lifetime US3082914A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144966A (en) * 1962-04-16 1964-08-18 Semco Res Inc Cartridge for mixing and dispensing sealant compound
US3370754A (en) * 1966-12-21 1968-02-27 Products Res & Chemical Corp Syringe for mixing and dispensing two ingredients
US3376999A (en) * 1967-05-31 1968-04-09 Gen Dynamics Corp Packaging, mixing and dispensing apparatus
US3437242A (en) * 1966-11-21 1969-04-08 Edward J Poitras Fluid storing,mixing and dispensing apparatus
US4653675A (en) * 1984-08-25 1987-03-31 Hilti Aktiengesellschaft Hand-held motor-driven extruding device for dispensing a plastic substance
US4801052A (en) * 1986-06-19 1989-01-31 Gianfranco Citterio Metering container for thick and semi-thick cosmetic products, such as creams and the like
DE8813376U1 (en) * 1988-10-25 1989-04-27 Trettel, Walter, Dr., 2308 Preetz, De
US5217145A (en) * 1992-08-28 1993-06-08 Glaxo Inc. Multiple product dispenser
JP2008018088A (en) * 2006-07-13 2008-01-31 Shiono Chemical Co Ltd Syringe
EP1974759A1 (en) * 2007-03-29 2008-10-01 Jürgen Schmidt-Evers Injection device, especially insulin-pen
WO2008119691A2 (en) * 2007-03-29 2008-10-09 Schmidt-Evers Juergen Pen injector for a liquid injection preparation
US20100288790A1 (en) * 2008-01-11 2010-11-18 Medmix Systems Ag Dispensing appliance for a multiple cartridge
WO2011023629A1 (en) 2009-08-27 2011-03-03 Sanofi-Aventis Deutschland Gmbh Injector device
US11058822B2 (en) 2012-05-16 2021-07-13 Ypsomed Ag Device for adjusting a dosage with a limiting mechanism for a device for administering a product
US11458257B2 (en) 2006-09-15 2022-10-04 Ypsomed Ag Injection device comprising an improved delivery element

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US993511A (en) * 1910-10-14 1911-05-30 James F Craven Receptacle for containing and discharging semisolid and pasty substances.
US1609479A (en) * 1925-11-04 1926-12-07 Premier Appliance Co Inc Soap dispenser
US2165825A (en) * 1935-01-23 1939-07-11 Bultzingslowen Bruno Von Container and closure for same
US2272641A (en) * 1939-08-04 1942-02-10 Charles A Mureau Cosmetic applicator
US2276722A (en) * 1941-02-15 1942-03-17 Bernard S Hillman Marking implement
US2329367A (en) * 1942-05-18 1943-09-14 Weisenberg Morris Container
US2349726A (en) * 1942-06-18 1944-05-23 George J Holler Dispenser for extrusile substances
US2353355A (en) * 1942-03-13 1944-07-11 Okies Joe Dispensing container
US2626087A (en) * 1947-10-29 1953-01-20 Alfred S Howard Syringe with vernier adjustment
US2738905A (en) * 1950-11-10 1956-03-20 Carl E Olson Paste or like dispenser
US2841145A (en) * 1956-05-07 1958-07-01 John A Epps Syringe

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US993511A (en) * 1910-10-14 1911-05-30 James F Craven Receptacle for containing and discharging semisolid and pasty substances.
US1609479A (en) * 1925-11-04 1926-12-07 Premier Appliance Co Inc Soap dispenser
US2165825A (en) * 1935-01-23 1939-07-11 Bultzingslowen Bruno Von Container and closure for same
US2272641A (en) * 1939-08-04 1942-02-10 Charles A Mureau Cosmetic applicator
US2276722A (en) * 1941-02-15 1942-03-17 Bernard S Hillman Marking implement
US2353355A (en) * 1942-03-13 1944-07-11 Okies Joe Dispensing container
US2329367A (en) * 1942-05-18 1943-09-14 Weisenberg Morris Container
US2349726A (en) * 1942-06-18 1944-05-23 George J Holler Dispenser for extrusile substances
US2626087A (en) * 1947-10-29 1953-01-20 Alfred S Howard Syringe with vernier adjustment
US2738905A (en) * 1950-11-10 1956-03-20 Carl E Olson Paste or like dispenser
US2841145A (en) * 1956-05-07 1958-07-01 John A Epps Syringe

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144966A (en) * 1962-04-16 1964-08-18 Semco Res Inc Cartridge for mixing and dispensing sealant compound
US3437242A (en) * 1966-11-21 1969-04-08 Edward J Poitras Fluid storing,mixing and dispensing apparatus
US3370754A (en) * 1966-12-21 1968-02-27 Products Res & Chemical Corp Syringe for mixing and dispensing two ingredients
US3376999A (en) * 1967-05-31 1968-04-09 Gen Dynamics Corp Packaging, mixing and dispensing apparatus
US4653675A (en) * 1984-08-25 1987-03-31 Hilti Aktiengesellschaft Hand-held motor-driven extruding device for dispensing a plastic substance
US4801052A (en) * 1986-06-19 1989-01-31 Gianfranco Citterio Metering container for thick and semi-thick cosmetic products, such as creams and the like
DE8813376U1 (en) * 1988-10-25 1989-04-27 Trettel, Walter, Dr., 2308 Preetz, De
US5217145A (en) * 1992-08-28 1993-06-08 Glaxo Inc. Multiple product dispenser
JP2008018088A (en) * 2006-07-13 2008-01-31 Shiono Chemical Co Ltd Syringe
US11458257B2 (en) 2006-09-15 2022-10-04 Ypsomed Ag Injection device comprising an improved delivery element
EP1974759A1 (en) * 2007-03-29 2008-10-01 Jürgen Schmidt-Evers Injection device, especially insulin-pen
EP1974760A1 (en) * 2007-03-29 2008-10-01 Jürgen Schmidt-Evers Pen-Injector for an injection fluid, especial for insulin
WO2008119691A2 (en) * 2007-03-29 2008-10-09 Schmidt-Evers Juergen Pen injector for a liquid injection preparation
WO2008119691A3 (en) * 2007-03-29 2009-01-15 Juergen Schmidt-Evers Pen injector for a liquid injection preparation
US20100288790A1 (en) * 2008-01-11 2010-11-18 Medmix Systems Ag Dispensing appliance for a multiple cartridge
US8590747B2 (en) * 2008-01-11 2013-11-26 Medmix Systems Ag Multiple cartridge dispenser with rotating driver
WO2011023629A1 (en) 2009-08-27 2011-03-03 Sanofi-Aventis Deutschland Gmbh Injector device
US11058822B2 (en) 2012-05-16 2021-07-13 Ypsomed Ag Device for adjusting a dosage with a limiting mechanism for a device for administering a product
US11103646B2 (en) 2012-05-16 2021-08-31 Ypsomed Ag Device for adjusting a dosage with a limiting mechanism for a device for administering a product

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