1706results about "Ampoule syringes" patented technology

The invention discloses an automatic injection pen with a double-cavity structure, and belongs to the technical field of medical instruments. Comprising a shell, a refill frame, a double-cavity clamping type bottle, a push rod, a base, an unlocking piece, a releasing piece, an injection spring and a button, the push rod is provided with a first hook hole, the base is provided with a first clamping hook matched with the first hook hole, the base is further provided with a second hook hole, and the unlocking piece is provided with a second clamping hook matched with the second hook hole; the unlocking piece is used for keeping or releasing matching of the first hook hole and the first clamping hook; and the release piece is used for keeping or releasing matching of the second hook hole and the second clamping hook, so that before the release piece releases the second hook hole and the second clamping hook, the button cannot be pressed down, and the unlocking piece cannot slide by pressing the button. The release piece and the unlocking piece ensure that double-cavity liquid medicine cannot be triggered before being mixed, operation is easy, stability is high, and a patient can conveniently and safely conduct injection.

The invention relates to the technical field of pen-type injection devices, in particular to a self-driven automatic injection device which comprises a shell, a medicine bottle support, a driving device and a control device. A needle puncture-proof protection assembly is arranged on the lower portion in the shell, the needle puncture-proof protection assembly comprises a needle hiding sleeve, and the needle puncture-proof protection assembly is configured in the mode that in the injection process or after injection is completed and the needle hiding sleeve is pulled out, the needle hiding sleeve can be locked, and then injection cannot be continued; an energy storage locking assembly is arranged on the upper portion of the interior of the shell and is configured in the mode that before injection, the driving rod is locked by the needle hiding sleeve, when one end of the needle hiding sleeve is stressed to move towards the driving rod, the driving rod is unlocked, the torsional spring provides driving force to enable the driving rod to drive the push rod to move towards the medicine bottle, and injection is achieved. Stable and reliable injection power can be provided, and injection can be rapidly achieved; in addition, the needle hiding sleeve can be locked no matter the needle hiding sleeve is pulled out during injection or after injection is completed, so that the needle hiding sleeve does not retract inwards, secondary injection is prevented, and safety and reliability are achieved.

The disclosure relates to an audible indicator in combination with a drug delivery device having a resilient force member capable of resting in either of two states. In a biased state, the resilient force member is biased and stores energy and in a relaxed state, the resilient force member is relaxed. The resilient force member releases the stored energy when changing from the biased state into the relaxed state, thereby generating an audible signal, wherein the resilient force member is supported by a retaining element in the biased state in order to prevent transition into the relaxed state.

A drug injection control device has a structure in which a rod lock screw-coupled to a piston rod can make a linear motion under restricted rotation within a rod holder with the rotation of a rod guide and the sub-linear motion of the piston rod. When the injection amount of drug is preset through an injection amount setting module to make a rotational motion with a dose dial in a housing to set the amount of drug to be injected by storing the twisting moment in a torsion spring, in actuating a drug delivery module switchably coupled to the injection amount setting module, the rod lock can make a linear motion by the sliding motion of a lock protrusion through a lock guide formed through the rod holder along the lengthwise direction on the rotation of the rod guide and the sub-linear motion of the piston rod.

Modules for housing electronic and electromechanical medical equipment including a system to measure and record administration of one or more IV medications or fluids for IV administration.

A medicament delivery device includes a needle disposed at a distal end of the medicament delivery device. The medicament delivery device includes a body for a syringe and a needle cover axially movable relative to the body between an extended position in which the needle cover covers the needle and a retracted position in which the needle protrudes from the distal end of the needle cover. The medicament delivery device includes a plunger axially movable relative to the body to dispense medicament from the medicament delivery device. The medicament delivery device includes a needle cover biasing mechanism configured to bias the needle cover distally from the retracted position to the extended position. The medicament delivery device includes a locking mechanism configured to be moved by the plunger from an initial configuration to an engaged configuration to prevent a distal movement of the needle cover biasing mechanism.

The present invention provides devices and methods for establishing aseptic connections between two or more components or subassemblies. The devices may be used in medical devices such as drug delivery pumps (10). In some embodiments, a connection is made between a drug container (50, 1050, 2050) and a fluid pathway connection assembly (300, 1300, 2300). The fluid pathway connection assembly may include a connection hub (312, 1312, 2312), a piercing member (316, 1316, 2316), and a piercing member retainer (314, 1314, 2314). The assembly may further include a first film (318, 1318, 2318) covering a cavity (312A, 1312A, 2312A), thereby maintaining the aseptic condition of the cavity. The drug container may hold a fluid drug and include a pierceable seal (326, 1326, 2326). A second film (322, 1322, 2322) may cover a recess (328, 1328, 2328) formed by the seal and thereby maintain the aseptic condition of the interior of the chamber. The piercing member may be caused to pierce the first and second film and the pierceable seal to open a fluid pathway for delivery of the fluid drug through the fluid pathway connection assembly.

A syringe carrier includes a housing adapted to receive a syringe having a needle encapsulated by a removable protective needle sheath, and two or more flexible arms protruding inwards in a relaxed state and adapted to couple with the syringe in a mounted position. The flexible arms are adapted to deflect radially outwards in a pre-assembled position of the syringe in the syringe carrier. In the mounted position the flexible arms are allowed to return into the relaxed state due, in part, to an axial force operating on the syringe carrier. The disclosure further relates to an autoinjector and a method of assembling the autoinjector.

A drug delivery device comprising a housing with an opening surrounded by an edge, an indicator member adapted to rotate relative to the housing during dose setting and expelling corresponding to an axis of rotation. A pattern is arranged on the indicator member and comprises a plurality of indicia indicating a rotational position of the indicator member relative to the housing. The edge comprises a scanner edge portion arranged generally in parallel with the axis of rotation. A line scanner is arranged at the scanner edge portion and adapted to scan a line formed portion of the indicator member observable in the opening as the indicator member rotates relative to the line scanner from a start rotational position to an end rotational position during dose setting and / or dose expelling thereby providing a plurality of line scan images allowing a set or expelled amount of drug to be calculated.

A drug delivery device may include a housing having an opening and a drug storage container including a delivery member having an insertion end configured to extend at least partially through the opening during a delivery state. The device may also include a guard moveably positioned adjacent to the opening and a plunger having a generally cylindrical body portion extending along a longitudinal axis of the container and at least one flange extending radially outwardly from the body portion, wherein the plunger is moveable toward the distal end of the container to expel a drug through the delivery member. The device may further include a plunger biasing member configured to urge the plunger toward the distal end of the container and a releaser member defining a guide configured to receive the at least one flange and an indicator configured to generate an audible signal indicating an end of drug delivery.

The invention relates to dose and dispensing mechanism comprising a housing (10), a plunger rod (60), a dosing click member (80) comprising axially extending dosing click teeth (82) adapted to engage axially extending counter dosing click teeth (72) and the mechanism further comprises a dispensing click member (90) inside the housing and comprising dispensing click teeth (91) adapted to engage counter dispensing click teeth (71). In a dose setting position the drive member (40) is operatively coupled to the dosing click member (80) to rotate it relative to the housing which causes the dosing click teeth (82) to slide over the counter dosing click teeth (72) and in a dispensing position the drive member (40) is operatively coupled to the dispensing click member (90) to rotate it relative to the housing which causes the dispensing click teeth (91) to slide over the counter dispensing click teeth (71).

The invention provides an automatic injection device which comprises a needle bin system, a needle head system, a needle head system, a needle head system, a needle head system, a needle head system and a needle head system, the driving system is detachably connected with the needle bin system, the driving system is provided with a first-stage driving mechanism and a second-stage driving mechanism, the first-stage driving mechanism is used for driving an injection needle of the pre-filling injector to pierce an injection part, and the second-stage driving mechanism is used for driving an injection push rod of the pre-filling injector to move; and the liquid medicine is injected into the injection part through the injection needle. The automatic injection device can be repeatedly used, more importantly, the automatic injection device is further provided with the first-stage driving mechanism and the second-stage driving mechanism, the first-stage driving mechanism is used for puncturing the injection needle on the pre-filling injector into the body by a certain depth, and then the second-stage driving mechanism drives the injection push rod of the pre-filling injector to move; all the liquid medicine is injected into the injection part, time sequence control is achieved, and therefore the liquid medicine injection effect can be ensured.

Medication delivery methods, devices and systems are provided, the medication delivery device includes user interface elements, control circuitry, and a memory. The method includes receiving analyte measurement data of a user, presenting information related to the analyte measurement data to the user, and determining an intended dose of medication based on at least one of the analyte measurement data, optionally, therapeutic relevant conditions, therapy parameters, or a calculated insulin-on-board (IOB) value. When the user is queried to indicate that the user is ready for the delivery without presenting the intended dose on any of the one or more user interface elements of the medication delivery device, the intended dose is automatically delivered after receiving the user's indication.

A transdermal drug administration device comprises: a housing; a battery; an injection system; a movable connection part for providing fluid connection between the injection system and a reservoir containing an active ingredient intended to be administered; a pump system, the pump system being motorized so as to cause a fluid to circulate within a fluid network of the device; and an electronic system for controlling the driving of the pump system, the electronic system being provided with a mechanical switch for powering the pump system with a battery, wherein the movable connection part is moveable relative to the housing and the reservoir, the movable connection part jointly controlling the fluid supply of the pump and the power supply of the electronic system during the movement, at least part of the movement being performed by a human mechanical action.

A hold assistance device for use with a medicament delivery device is described. The hold assistance device includes: a housing configured to be coupled to a medicament delivery device; a chamber for containing air, the chamber having a proximal end and a distal end; and a piston movable within the chamber between the proximal and distal ends of the chamber, wherein the piston is arrangeable in an activated position inside the chamber in which the piston is arranged proximate to the proximal end of the chamber such that the chamber is at least partially evacuated of air and movement of the piston towards the distal end of the chamber is resisted by a vacuum force.

A drug delivery device may include a cassette with a needle assembly and a cartridge. The cassette is configured to couple and decouple from a reusable module. The device may also comprise an orientation mechanism to orient the cassette in relation to another device, such as a reusable housing. The device may comprise an extendable and retractable needle assembly. The cassette configuration is adapted to have a stopper with a short travel (no more than 14 mm) to deliver 1 mL of medication. The cassette may have a ratio of height to diameter from 2:1 to 1:1. The cassette may include a pair of drivable interfaces for being driven to actuate the stopper to expel medication and to drive the needle assembly between a retracted and extended configuration for controlled fluid communication between the needle and reservoir.

Needle shield removers, drug delivery devices, and associated methods are provided that include a tubular body formed from a sheet with a closure having from a plurality of teeth extending laterally outwardly from one longitudinal edge of the sheet and a plurality of grooves extending laterally inwardly into the sheet of material from a second longitudinal edge of the sheet. The plurality of teeth are frictionally received within the plurality of grooves to thereby hold the body in a tubular configuration. The needle shield removers can further include a first plurality of barbs arrayed around a circumference of the body adjacent to a first end thereof and a second plurality of barbs arrayed around a circumference of the body adjacent to a second end thereof.

The present invention relates to a pre-assembled reconstitution and injection device, comprising an injection section having a cartridge for holding a diluent or drug product and a reconstitution section having a vial for holding a drug, whereby the injection section may only be disassembled from the reconstitution section after activation of the device has occurred. In an embodiment for use with a pen needle, the reconstitution section comprises a vial needle hub having a reconstitution needle for piercing both the vial and cartridge. In an embodiment of the invention for use with a hypodermic needle, the injection section comprises a cartridge needle hub with a cartridge needle and male luer connection having threads for securing a hypodermic needle, and the reconstitution section comprises a needle hub with a vial needle and a female luer connection for engagement with the male luer connection.

The disclosure relates to a sensor assembly for detecting an operation of an injection device, the sensor assembly including a sensor element attachable to the injection device and including a sensing surface, the sensing surface having a number of touch sensitive sensor segments the touch sensitive sensor segments being operable to generate an electric touch signal when touched by a body part of a user, and a processor connectable to the sensor element, operable to detect a variation of the electric touch signals over time and to recognize an operation of the injection device on the basis of the temporal variation of the electric touch signals.

Devices and methods are provided for delivering gas. In one example, the device includes a syringe body including a proximal end, a distal end including an outlet and a gas chamber communicating with the outlet, and a plunger carrying a piston slidably received within the syringe body. A canister containing a gas is provided within the plunger adjacent a passage through the piston communicating with the gas chamber. A drive actuator is movable to cause an opener pin to open a septum of the canister and release the gas, whereupon the gas travels through the passage into the gas chamber, thereby displacing the piston proximally to fill the gas chamber. Once activated, the plunger may be advanced to deliver the gas within the gas chamber through the outlet into a patient's body, e.g., into an eye via a cannula connected to the outlet.

The present invention relates to a pre-filled injection device having a non-removable cartridge embedded in a housing structure, wherein the piston rod drive mechanism comprises a threaded piston rod that moves helically in a nut fixed to the housing structure. During assembly of the injection device, it is possible to eliminate the air gap between the plunger in the cartridge and the piston rod means by axially moving the nut element of the drive mechanism during assembly. In an alternative solution, the piston rod comprises a telescopic element that can slide axially relative to the piston rod to obtain a zero position.

A hold assistance device for use with a medicament delivery device is described. The hold assistance device includes: a first support configured to be fixedly coupled to a main body of a medicament delivery device, wherein the first support comprises a first attraction component; and a second support moveable relative to the first support between an initial position and a hold position and configured to be fixedly coupled to a needle cover of the medicament delivery device, wherein the second support includes a second attraction component, and wherein at least one of the first attraction component and the second attraction component is a magnet, and the other of the first attraction component and the second attraction component is a magnet or a ferromagnetic material; and wherein movement of the second support towards the hold position moves the second attraction component towards the first attraction component.

Provided herein is a pre-fillable injection device that includes an end member having a fluid-filled reservoir therein that is formed by a depressible film. A port and hub are provided on a distal end of the end member to provide access to the reservoir. A double-ended needle is retained by the hub and has a proximal end positioned within the port and a distal end extending out from the port. The double-ended needle is movable from a first position where the proximal end is separated from the reservoir to a second position where the proximal end is positioned to pierce into the reservoir. A shield assembly is positioned at the distal end of the end member and may be actuated distally by a biasing member from a retracted position to an advanced position, with the distal end of the needle covered by the shield assembly when in the advanced position.

The invention relates to the field of injection devices, in particular to an energy storage type automatic injection device which comprises a shell, an energy storage type injection assembly, a transmission locking assembly and a pre-filling injection medicine bottle. The energy storage type injection assembly is sleeved with the transmission locking assembly, and the transmission locking assembly is used for locking and releasing the energy storage type injection assembly; the released energy storage type injection assembly triggers the pre-filling injection medicine bottle to achieve automatic injection. Injection triggering is driven by the built-in energy storage part, external force does not need to be applied to a patient, stable and reliable injection power is provided, and the injection effect is more scientific and reliable. And the use process is more convenient and efficient, the system is very suitable for home self-administration, and the use ability training of patients and complex use scenes are reduced.

An injector pen and a dose adjustment mechanism of the injector pen are provided. The dose adjustment mechanism (13), comprising: a cylinder (133) mounted outside a drive rod (132), a spiral channel extending along an axis direction of the drive rod (132) and formed between an inner wall of the cylinder (133) and an outer wall of the drive rod (132), a ball (134) being rollable in the spiral channel; the cylinder (133) and an upper pen holder (11) of the injector pen (100) being relatively fixed in a circumferential direction; the drive rod (132) being rotatable relative to the cylinder (133) under the action of an external force; a sleeve (135) being limitedly connected with the drive rod (132) in the circumferential direction, and configured to provide transmission cooperation with a transmission mechanism (14) of the injector pen (100).

A mechanical infusion system includes a housing having top and bottom portions. A pair of sliding slots extend transversely along the bottom portion. A hinge causes the top portion to connect with the bottom portion to form a closed position and separate from the bottom portion to form an open position. The housing forms engagement and syringe receiving cavities to respectively receive a flange and barrel of a syringe. A movable pusher is biased towards the engagement cavity so as to apply force to a plunger of the syringe. The infusion system also includes linkages configured to move transversely in a first direction upon opening of the top portion to cause the pusher to move away from the engagement cavity and move transversely in a second, opposite direction upon closing of the top portion to allow the pusher to retract towards the engagement cavity within the sliding slots.

The invention relates to a multiuse fixed dose injection device for ejecting multiple pre-defined fixed doses of a liquid drug. The injection device comprises a housing structure, a dose selection button and a piston rod assembly. The housing structure is configured for holding a loaded cartridge containing the liquid drug. The dose selection button is functionally coupled to the housing structure for selecting one of the pre-defined fixed dose and the piston rod assembly is distally adapted to move a piston inside the loaded cartridge and adapted to carry a gear wheel, which is rotatably coupled with a piston rod. The injection device further comprises a first toothed rack associated with the housing structure and a second toothed rack associated with the dose button. The gear wheel and the first toothed rack are permanently engaged both during dose selection and during dose ejection, and the gear wheel and the second toothed rack are disengaged during dose selection and engaged during dose ejection.

To provide a method for discharging a substance from an apparatus.SOLUTION: By pressing an actuation assembly 426 of the apparatus down to a first predetermined position, an insertion rod 428 displaces a sealing member 434 from an opening 416, thereby allowing fluid communication between a first chamber 418 and a second chamber 436. By pressing the actuation assembly 426 down to a second predetermined position, the insertion rod 428 displaces a sealing member 412 from a second opening, thereby allowing fluid communication between the second chamber 436 and a third chamber 444. By pressing the actuation assembly 426 down to a third predetermined position, a needle assembly discharges a substance through a needle 448.SELECTED DRAWING: Figure 4