A needleless injector includes an injector main body, a housing part including an accommodating space in which an injection substance is accommodated, the housing part defining a flow path to enable the injection substance to be ejected to a target region through an ejection port, and an attachment part configured to attach the housing part to the injector main body. The attachment part attaches the housing part to the injector main body, with a distal end side outer surface of the housing part corresponding to an inner surface of the housing part on a distal end side, where a communication portion where the flow path is in communication with the accommodating space is located, pressed in a direction opposite to a movement direction of a pressurizing unit that pressurizes the injection substance toward the ejection port.

The present invention relates to a drug injection device using pulsed shock waves, the drug injection device comprising: a power unit generating pulsed power; a pulsed shock wave generating unit which receives the pulsed power and generates pulsed shock waves; an upper housing in which a liquid and the pulsed shock wave generating unit are disposed; a lower housing which is connected to the upper housing, and in which a drug is disposed; a shock wave transmission unit which is provided between the upper housing and the lower housing to separate the upper housing and the lower housing; and an injection unit which is disposed in the lower housing and inject the drug.

The present invention relates to a drug injection device using pulsed shock waves, the drug injection device comprising: a power unit generating pulsed power; a pulsed shock wave generating unit which receives the pulsed power and generates pulsed shock waves; an upper housing in which a liquid and the pulsed shock wave generating unit are disposed; a lower housing which is connected to the upper housing, and in which a drug is disposed; a shock wave transmission unit which is provided between the upper housing and the lower housing to separate the upper housing and the lower housing; and an injection unit which is disposed in the lower housing and inject the drug.

An injector (10) for injecting a medicament into a patient. The injector includes a container (18) defining a first chamber (22), which contains a fluid therein, and a second chamber (23). The injector also includes an injection conduit (126) configured for directing the fluid fired from the container into the patient. A transfer mechanism is operable by a user to transfer the fluid from the first chamber to the second chamber in a first stage of operation, and a firing mechanism is operable by the user for firing the fluid from the second chamber through the injection conduit in a second stage of operation. An energy source (62) is in powering association with the firing mechanism to drive firing mechanism in the first and second stages.

An injector (10) for injecting a medicament into a patient. The injector includes a container (18) defining a first chamber (22), which contains a fluid therein, and a second chamber (23). The injector also includes an injection conduit (126) configured for directing the fluid fired from the container into the patient. A transfer mechanism is operable by a user to transfer the fluid from the first chamber to the second chamber in a first stage of operation, and a firing mechanism is operable by the user for firing the fluid from the second chamber through the injection conduit in a second stage of operation. An energy source (62) is in powering association with the firing mechanism to drive firing mechanism in the first and second stages.

A transdermal injection component, comprising: an injection volume configured to contain an injectable treatment therein, a plunger, the injection volume being in fluid communication with at least one orifice such that the plunger is configured to exert the injectable treatment from the injection volume through the at least one orifice; the plunger sealably engaged with the injection volume, the plunger configured to exert the injectable treatment from the injection volume through the at least one orifice so as to effect transdermal injection of the injectable treatment to a patient; the transdermal injection component being configured to engage with an actuator device configured to effect movement of the plunger to exert the injectable treatment through the at least one orifice.

A transdermal injection component, comprising: an injection volume configured to contain an injectable treatment therein, a plunger, the injection volume being in fluid communication with at least one orifice such that the plunger is configured to exert the injectable treatment from the injection volume through the at least one orifice; the plunger sealably engaged with the injection volume, the plunger configured to exert the injectable treatment from the injection volume through the at least one orifice so as to effect transdermal injection of the injectable treatment to a patient; the transdermal injection component being configured to engage with an actuator device configured to effect movement of the plunger to exert the injectable treatment through the at least one orifice.

A method for needle-free injection and a needle-free injector device are provided. The method includes automatically injecting an injectable into a surface in contact with the needle-free injector in response to a skin compression parameter of an end of the needle-free injector. A needle-free injector device (102) includes predefined structures formed on it to inject an injectable through a non-porous material. The predefined structures engage an airlock mechanism such that an airlock in the non-porous material and operably coupled to the airlock mechanism can only be opened and closed to enable needle-free injection through the non-porous material without disrupting an integrity of the non-porous material by the needle-free injector device. Other functions, embodiments and methods for using and programming the needle-free injector device are also provided.

A method for needle-free injection and a needle-free injector device are provided. The method includes automatically injecting an injectable into a surface in contact with the needle-free injector in response to a skin compression parameter of an end of the needle-free injector. A needle-free injector device (102) includes predefined structures formed on it to inject an injectable through a non-porous material. The predefined structures engage an airlock mechanism such that an airlock in the non-porous material and operably coupled to the airlock mechanism can only be opened and closed to enable needle-free injection through the non-porous material without disrupting an integrity of the non-porous material by the needle-free injector device. Other functions, embodiments and methods for using and programming the needle-free injector device are also provided.

A needleless connector and methods for preventing microbial ingress in medical device connections are disclosed. Various examples provide a needleless connector including a male luer having a recessed distal tip surface containing a water-soluble antimicrobial composition. Further examples include a trap for retaining antimicrobial composition. As the needleless connector is inserted into a female connector, a tapered surface distal edge acts to push microorganisms, while the distal tip surface is configured to leave microorganisms undisturbed. After insertion of the needleless connector, microorganisms present on the female luer surface are biased to reside in the recess region. The recess, trap, and antimicrobial composition are configured to facilitate a long-lasting supply of antimicrobial solution within the fluid-filled recess, at the same time confining the antimicrobial solution inside the recess. This produces a high concentration of antimicrobial solution for an extended time, killing microbes, stopping microbial ingress, and preventing infections in patients.