43 results about "Discharge medications" patented technology

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.

A drug injection device includes a drug injector configured to suck a drug from a drug storage by electrochemically operating an electroosmotic pump and discharge an sucked drug to an injection target; and a controller configured to output, to the drug injector, a control signal corresponding to an amount-based injection sequence for causing the electroosmotic pump to operate in an immediate bolus injection mode, wherein the amount-based injection sequence includes at least one pulse block defining a voltage pulse or a current pulse to be applied to the electroosmotic pump, the at least one pulse block defines a pair of pulse signals including a forward pulse and a reverse pulse that are applied to the electroosmotic pump to alternately generate negative pressure and positive pressure, and the electroosmotic pump alternately generates negative pressure and positive pressure for each pulse block to suck and discharge the drug.

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.

A self-driven medicament container (10, 10') for storing and discharging a medicament in response to a user interaction is provided, the self-driven medicament container (10, 10') comprising: a reservoir body (2), a retainer (3), a stopper (4) configured to divide an interior of the reservoir body (2) into a drive compartment (21) and a medicament compartment (22), the medicament compartment (22) containing the medicament and comprising an outlet (23) through which the medicament can be discharged in a dispensing operation. The self-driven medicament container (10, 10) further comprises a drive element (5), a plunger having a shaft (61, 6T) with a locking element (62, 62') configured to engage the retainer (3) to prevent a distal movement of the plunger relative to the reservoir body (2) and a contact element (63) configured to contact the stopper (4), and a release mechanism, configured to disengage the locking element (62, 62') from the retainer (3) in response to the user interaction thereby enabling a distal movement of the plunger relative to the reservoir body (2). The medicament compartment (22) is distal to the drive compartment (21). The stopper (4) is further configured to seal the medicament compartment (22) relative to the drive compartment (21). The drive element (5) is positioned in the drive compartment (21) before and after the locking element (62, 62') is disengaged from the retainer (3). The drive element (5) is configured to provide an axial force to the plunger in order to move the plunger distally relative to the reservoir body (2) thereby moving the stopper (4) relative to the reservoir body (2) and discharging the medicament, when the locking element (62, 62') is disengaged from the retainer (3). Further there is provided a medicament delivery device (100, 100') comprising said self-driven medicament container.

A drug delivery device that can be used with a drug container, wherein the advancement of a piston within the container discharges the drug. The device includes a housing and a drive assembly. The drive assembly includes a drive belt having a distal edge segment and a proximal edge segment. The drive belt has a retracted configuration that defines a two-dimensional spiral and an extended configuration that defines a three-dimensional spiral. The drive belt can move from a retracted configuration to an extended configuration, wherein this movement defines a drive axis and advances the piston. In some embodiments, the drive belt may not rotate as it advances, while in other embodiments, the belt does rotate. The disclosed drive assembly includes a manually driven assembly, a spring driven assembly, and a motor driven assembly. The container may be replaceable to allow the device to be reused. In some embodiments, a replaceable cartridge including both the drug container and the drive belt may be used.

The invention relates to a multi-part moxibustion auxiliary nursing device and a method thereof, and belongs to the technical field of modern rehabilitation and daily health care, and the method comprises the following steps: S1, arranging a sound wave agglomeration flow channel and a downstream variable cross-section cyclone separation guide pipe; s2, the driving frequency is corrected along with temperature adjustment, the pipe diameter is made to be integral multiples of the half-wavelength, and it is ensured that standing wave nodes are located in the center of the section; s3, moxa-moxibustion smoke is introduced, and the flow speed is controlled to be 2-4 m / s so that the laminar flow state can be kept; s4, starting 27 to 29 kHz, gt; 140dB ultrasonic standing waves are adopted, and tar is driven by acoustic radiation force until wave nodes are gathered into gt; 10 [mu] m large particles; s5, the airflow tangentially enters an inverted-cone-shaped pipe, large particles are captured through centrifugal force, and medicine volatile oil gas is discharged from the center. According to the method, harmful substances such as polycyclic aromatic hydrocarbon and the like are efficiently removed, meanwhile, monoterpenoids and sesquiterpenoids volatile oil components in the moxa smoke are reserved to the maximum extent, and the medicinal value of moxibustion nursing is ensured.

A drug injection device includes a drug injector configured to electrochemically drive an electroosmotic pump to suck a drug from a drug storage and discharge an sucked drug to an injection target, and a controller configured to output, to the drug injector, a control signal corresponding to an injection sequence for defining an operation of the electroosmotic pump, wherein the injection sequence includes a pulse block that defines one of a voltage pulse and a current pulse to be applied to the electroosmotic pump, the pulse block defines a pair of pulse signals including a forward pulse and a reverse pulse that are applied to the electroosmotic pump to alternately generate negative pressure and positive pressure, and the electroosmotic pump sucks and discharges a drug by alternately generating the negative pressure and the positive pressure in the pulse block.

Drug delivery devices and related methods of assembly are disclosed. The drug delivery device may include a main housing having an interior surface defining an enclosed space, and an exterior surface releasably attachable to a patient. A container may be disposed in the enclosed space and include a reservoir containing a drug and a stopper. A drive assembly may also be disposed in the enclosed space and configured to move the stopper through the reservoir to expel the drug from the reservoir. The drive assembly may include a rotational power source and a gear module. The gear module may include a mounting plate and a plurality of gears rotatably connected to the mounting plate. Furthermore, the mounting plate may be separate from the main housing.

To develop a medicine feeder capable of discharging only a correct amount of medicine.SOLUTION: A medicine feeder 1 includes a medicine container 2, and a container mounting device 3. The medicine container 2 is detachable from the container mounting device 3. The medicine container 2 has a medicine discharge portion for discharging medicine. The container mounting device 3 has a vibration table 50, excitation means 51, container holding means, and weight measuring means. There is provided a wire holding member 73 which has a magnet electrification wire 65, an excitation means electrification wire 68, and a measuring means electrification wire 70, and holds any of the wires. The wire holding member 73 holds the wires, and has elasticity to move the position of a wire fixing portion 76 according to external force, and when the external force is eliminated, the wire fixing portion 76 is restored to an original position.SELECTED DRAWING: Figure 1

A drug delivery device may include a housing defining a longitudinal axis and having an opening, 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, a plunger moveable toward a distal end of the drug storage container to expel a drug from the drug storage container, a drive mechanism operably coupled to the plunger, at least one cavity formed in a wall of the housing to permit a user to view the drug storage container through the at least one cavity, and a window disposed over the at least one cavity and configured to protect the drug in the drug storage container from wavelengths of light in an ultraviolet (UV) range, a visible range, and / or an infrared range.

At least some embodiments of the present disclosure provide a drug delivery device comprising: a housing; a container holder secured to the housing and configured for holding and securing a medicament container therein, the medicament container comprising a container body and a proximal flange at a proximal end of the container body; a pusher member comprising a pusher portion for extending into the medicament container and configured to move distally relative to the medicament container to expel contents in the medicament container; the positioning bracket is accommodated in the shell and can move relative to the shell in the axial direction; and a knob rotatably mounted to the housing. The positioning bracket is spaced from the proximal flange of the medicament container when the knob is in the first knob position. When the knob is rotated to the second knob position, the positioning bracket is urged distally such that the positioning bracket abuts the proximal flange of the medicament container. The drug delivery device can be operated more reliably.

Briefly, an injection delivery system is described for subcutaneous or intramuscular injection of a drug, in particular a large volume of a biologic drug, high and low viscosity biologies, or a large volume of a high viscosity and low viscosity chemical drug. The injections may be self-administered or performed by a caregiver. The system uses a pump to move a drug from a vial, thorough an infusion set, and into the patient. A vial of a biological or chemical drug is set into a vial adapter that is associated with the pump, which can be manual or powered. A fluidics subassembly connects the vial adapter, pump, and the infusion set so that a drug pathway is enabled from the vial to the patient. The fluidics subassembly has one or more check valves to assure that the drug pathway is only enabled for a one-way drug flow out of the vial and to the patient. The infusion set has flexible tubing that connects the fluidics subassembly to cannula assembly inside an infuser housing. The cannula assembly has an air evacuation assembly near the tip of the needle. This air evacuation assembly is constructed to safely exhaust air from the cannula assembly at three times: (1) at initial setup to exhaust air while the drug is filling the cannula assembly, which enables the self-priming; (2) during injection to exhaust drug-entrapped air, which increases injection safety; and (3) at the end of drug delivery to exhaust air after the full dose of drug has been delivered to the cannula assembly, including drug that was in the tubing, which reduces wasted drug and minimizes the amount of drug overfill required in the vial.

The present invention relates to a needleless liquid medicine injection device allowing repeated injections of liquid medicine into the skin, and high-pressure discharge of the liquid medicine, accommodated in a liquid medicine chamber, using a single coil.

A dispenser for expelling a liquid drug, the dispenser comprising an elongated housing oriented along a central axis and an expelling opening oriented axially in the direction of the central axis is arranged on a distal end of the housing. The dispenser comprises a liquid reservoir and a control device with a pump or a switch valve, the control device being connected with the liquid reservoir by a first line and with the expelling opening by a second line and can direct the liquid from the liquid reservoir to the expelling opening by means of the lines. The dispenser comprises a manipulation pressure piece which is laterally arranged in a recess of an outer peripheral surface of the housing and is connected with the control device such that the control device manipulates a radial pressure-in of the manipulation pressure piece in the direction of the central axis such that the liquid is directed to the expelling opening.

A dose delivery mechanism for a drug delivery device comprises: a housing; a piston rod; and an adjusting element. The housing is configured to be connected to a medicament container sealed by a plunger. Further, the dose delivery mechanism has a pre-assembled state and an assembled state in which the dose delivery mechanism is configured to axially move the piston rod in the proximal direction relative to the housing during dose delivery such that the piston rod exerts an axial force in the proximal direction on the plunger of the medicament container to expel medicament from the medicament container. In the pre-assembled state, the adjustment element is configured to perform rotation relative to the housing, where rotation of the adjustment element causes axial movement of the piston rod for adjusting an axial position of the piston rod relative to the housing prior to transition of the dose delivery mechanism from the pre-assembled state to the assembled state. In the pre-assembled state, the outer edge of the adjustment element is accessible to an assembler of the device to effect rotation of the adjustment element and axial movement of the piston rod. The adjustment element is configured to perform rotation at least when in a pre-assembled position relative to the housing, where the pre-assembled position is a distal-most position of the adjustment element relative to the housing in a pre-assembled state. Further, the dose delivery mechanism is configured to convert rotation of the adjustment element into axial movement of the piston rod through a single threaded connection in a pre-assembled state, where the threaded connection includes a first threaded element in threaded engagement with a second threaded element.

A drug delivery system having an end-of-dose detection arrangement for injecting a medicament. The system including a container configured to receive a medicament, a drive assembly which, upon actuation, is configured to expel the medicament from the container, a needle for injecting the medicament to a patient, a needle actuator assembly comprising a movable portion biased by a biasing member and configured to move the needle between a pre-use position, a use position for delivery of the medicament to the patient, and a post-use position after delivery of the medicament is completed, and a tube in fluid communication with the container and the needle, the tube comprising an expandable portion having an expanded state and a non-expanded state, wherein the expandable portion is configured to be in the expanded state upon actuation of the drive assembly and a non-expanded state when the needle is in the post-use position.

A drug delivery device usable with a drug container in which advancement of a piston within the container expels the drug. The device comprises a shell and a driving assembly. The drive assembly includes a drive belt having a distal edge section and a proximal edge section. The drive belt has a retracted configuration defining a two-dimensional helix and an extended configuration defining a three-dimensional helix. The drive belt is movable from a retracted configuration to an extended configuration, wherein this movement defines a drive axis and advances the piston. In some embodiments, the drive belt may not rotate as it advances, while in other embodiments, the belt is indeed rotating. The disclosed drive assembly includes a manually driven assembly, a spring driven assembly, and a motor driven assembly. The container may be replaceable to allow reuse of the device. In some embodiments, a replaceable cartridge may be employed that includes both a medicament container and a drive belt.

The drug delivery system (1), comprises: - a first bag (21) containing a drug in liquid form; - a second bag (22) configured to be inflated to compress the first bag for expelling the drug; - a gas supply system (30) comprising a gas container (31) and a gas connector (40) for fluidly connecting the gas container to the second bag inlet (25), to inflate the second bag; - a dispensing system (50) comprising an injection device (51) and a liquid connector (55) for fluidly connecting the first bag outlet (23) to the injection device inlet (52), wherein: - in the inactive state of the dispensing system, the liquid connector blocks the fluid communication and the injection device is in a retracted position, - in the active state of the dispensing system, the liquid connector fluidly connects the first bag outlet and the injection device inlet, and the injection device is in an extended position for penetrating an injection site; - an activation system (100) comprising a trigger (101) which can be moved from a rest position to an activated position, thereby: - causing the gas supply system to go from its inactive state to its active state, thus causing the second bag to inflate and to compress the first bag; - and causing the dispensing system to go from its inactive state to its active state, thus allowing the drug contained in the first bag to be delivered to the injection site.

The present invention relates to a needleless syringe comprising: a main body part; a control part for controlling the main body part; a drug accommodation part connected to one end of the main body part; and a nozzle part through which a drug accommodated in the drug accommodation part is discharged, wherein the main body part provides, in a pulse form, pressure of a predetermined magnitude to the drug accommodated in the drug accommodation part so as to discharge, to the outside through a nozzle hole of the nozzle part, the drug accommodated in the drug accommodation part under the control of the control part, and further includes an electronic control valve which is disposed in a drug flow path communicating with each of the drug accommodation part and the nozzle part, so as to open / close the flow path of the drug. According to the present invention, the needleless syringe for injecting a drug through the application of pulse pressure can more reliably prevent external air from flowing into the nozzle part during drug discharge.

A drug delivery system for injecting a medicament, comprising: a container configured to receive a medicament; a drive assembly configured to expel the medicament from the container upon actuation; a needle for injecting the medicament into a patient; a needle actuator assembly comprising a movable portion biased by a biasing member and configured to move the needle between a pre-use position, a use position for delivering the medicament to the patient, and a post-use position after completion of delivery of the medicament; and a tube in fluid communication with the container and the needle, the tube comprising an expandable portion having an expanded state and a non-expanded state, wherein the expandable portion is configured to be in the expanded state upon actuation of the drive assembly and in the non-expanded state when the needle is in the post-use position.

The medicament delivery device (2) comprises a base assembly to which a medicament container (3) is mountable and a plunger rod device (7) axially movable for acting, in an expelling movement towards proximally, on a plunger (31) of the medicament container (3) for expelling the medicament. It also comprises a driver biasing member (9) and a driver assembly biased by the driver biasing member (9) and coupled to the plunger rod device (7), configured carry a driver movement causing the expelling movement. In addition, a dose setting mechanism for setting and correcting a dosing amount is provided which comprises - a first dosing member (61) and a second dosing member (62) which are rotationally coupled and axially movable relative to one another, wherein an angle of rotation assumed by the first dosing member (61) determines the dosing amount - a ratchet mechanism with a first ratchet structure rotationally locked to, the driver assembly and a second ratchet structure rotationally locked to the second dosing member (62), which, in a setting state, are engaged with one another and which, in a correcting state, are disengaged from one another, and which, in the setting state, o enable a rotation of the second ratchet structure (R2) relative to the first ratchet structure in a first sense of rotation; and o inhibit a rotation of the second ratchet structure (R2) relative to the first ratchet structure (R1) in a second sense of rotation opposite the first sense of rotation.

A system for dispensing a liquid in the form of medicine for oral administration, which comprises a cartridge (14) and a dispenser that consists of a barrel (16), a plunger (18) and a receiver (20). The cartridge (14) includes a hollow shell (22) with an internal cavity (23) in which the required dosage of medicine is contained, as well as a piston (28) to discharge the medicine from the cavity (23). The cartridge (14) is received in the dispenser and the plunger (18) is used to urge the piston (28) to discharge the medicine from the cartridge cavity (23) into the patient's mouth via the discharge passage (42).

In the present invention, a sealed medication crushing and delivery system for enteral administration is disclosed. The system includes a crusher assembly with a lid, syringe-connectable inlet, enteral tube-connectable discharge outlet, sealed crushing chamber, and motor-driven crushing mechanism. A motor assembly provides controlled rotational power, ensuring efficient pulverization of solid medications into fine particles for enteral delivery. The sealed system prevents airborne particulate release, reducing medication loss and contamination risks. A fluid coupling system allows liquid introduction while maintaining a closed environment, ensuring complete dissolution and uniform mixing. A safety interlock mechanism prevents accidental activation by ensuring proper system engagement. The discharge outlet directly connects to an enteral syringe or tube, eliminating manual transfers. An embodiment includes a manually operable plunger for precise medication expulsion. The system may also feature a vented lid, LED status indicator, and filtering mechanism, ensuring safe and efficient medication preparation.

The invention discloses a driving mechanism for liquid medicine injection, which can drive a piston of a medicine feeding mechanism to move to discharge medicine, and comprises a base, a driving mechanism and a driving mechanism, the driving spring applies forward thrust to the push rod, and the push rod can be pushed to move in the forward direction in the medicine discharging process; the push rod is rotationally arranged on the base in a limited manner and is detachably connected with the base; the locking structure is used for locking or unlocking the push rod and comprises an unlocking piece and a lock catch, the unlocking piece is connected to the lock catch, the unlocking piece is matched with the push rod, and the lock catch is matched with the dosing mechanism; the unlocking piece and the lock catch are arranged on the base in an axial movement manner; the unlocking piece is provided with an idle stroke interval, the lock catch is provided with a push arm, and the push arm is clamped in the idle stroke interval in an axial moving mode. The unlocking piece is provided with a section of idle stroke interval for the lock catch to independently move without unlocking, so that a safe operation space is provided for the operation of the lock catch, the injection pen is prevented from being mistakenly excited, and the safety and the reliability are higher.

A drug delivery device may include a housing having an opening, 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, a plunger moveable toward a distal end of the drug storage container to expel a drug from the drug storage container, a guard moveably positioned adjacent to the opening, and a drive mechanism including a releaser member, a plunger guide, and a guard extension. The device may also include a container holder configured to support the drug storage container. The container holder may have a substantially tubular body portion and a pair of arms extending axially from a proximal end of the body portion, and the arms may be configured to abut a distal end surface of the guard extension to at least partially support the guard extension in at least a pre-delivery state.

A joint implant component (1, 1′; 101; 201) for administering a pharmaceutical product is disclosed, which comprises an implant shaft (10, 10′; 110; 210), a joint section (20, 20′; 120; 220) arranged at the proximal end of the implant shaft, a flush supply opening (3, 3′; 103; 203) and a backflush opening (4, 4′; 104; 204). At least one shaft flush channel (11, 11′; 111; 211) and one shaft backflush channel (12, 12′; 112; 212) extend along the implant shaft inside the implant shaft. The shaft flush channel is connected to the outside of the implant shaft via shaft flush holes (13, 13′; 112; 113) for discharging the pharmaceutical product, and the shaft backflush channel is connected to the outside of the implant shaft via at least one shaft backflush hole (14, 14′; 114; 214) for receiving the discharged pharmaceutical product. The flush supply opening is fluidically connected to the proximal end of the shaft flush channel and the backflush opening is fluidically connected to the proximal end of the shaft backflush channel. Also disclosed is a joint implant comprising two such joint implant components which are connected to one another by means of joint surface parts (30, 40; 230) and are pivotable relative to one another.

A drug injection device includes a drug injector configured to electrochemically drive an electroosmotic pump to suck a drug from a drug storage and discharge an sucked drug to an injection target, and a controller configured to output, to the drug injector, a control signal corresponding to an injection sequence for defining an operation of the electroosmotic pump, wherein the injection sequence includes a pulse block that defines one of a voltage pulse and a current pulse to be applied to the electroosmotic pump, the pulse block defines a pair of pulse signals including a forward pulse and a reverse pulse that are applied to the electroosmotic pump to alternately generate negative pressure and positive pressure, and the electroosmotic pump sucks and discharges a drug by alternately generating the negative pressure and the positive pressure in the pulse block.

This text concerns a medicament delivery device (2) for expelling multiple pre-defined doses of a medicament from a medicament container (3) comprising a plunger. The device comprises an activation mechanism comprising an activation structure (13), for causing a user-initiated expelling of the medicament from the medicament container (3), wherein one of an auxiliary plunger rod device (8) and of a base assembly comprises one or more locking arms (85), each locking arm (85) having a locking protrusion (86), and the other one of the auxiliary plunger rod device (8) and of the base assembly comprises one or more shelves (51), each shelve having a support surface (53) capable of engaging with at least one of the locking protrusions (86), wherein the medicament delivery device (2) is configured for the locking arms (85) to flex, in a flexing direction, in a resilient manner in response to the user causing a loading movement and to flex back for the locking protrusions (86) to engage the support surfaces (53) immediately before a loaded position has been reached by the auxiliary plunger rod device (8), wherein the activation structure (13) comprises one or more interacting elements (133) configured to cooperate with at least one of the locking arms (85) to flex the locking arms (85) in the flexing direction until the locking protrusions (86) get out of engagement with the support surfaces (53) and the interacting elements (133) abut the support surfaces (53).

A drug delivery device (10, 100, 200) which includes a housing (12, 112, 212) having a distal end, a proximal end, and an opening adjacent to the distal end, a drug storage container (20) including a delivery member (16) having an insertion end configured to extend at least partially through the opening, a plunger moveable (26) in a distal direction to expel a drug from the drug storage container through the delivery member, a guard member (32, 132, 232) moveable relative to the housing, and a guard extension (37, 137, 237) positioned proximal to the guard member and operably coupled to the guard member. The guard extension may have a first engagement component on an inner surface thereof, and the guard member may have a second engagement component. The first and second engagement components are configured to limit axial movement of the guard extension in a proximal direction when the guard member is in the extended position.