Devices, kits and methods for determining the site of intramuscular injection in adult and child patients are disclosed. The device includes a top element and two legs that are configured to be fastened in a first position and a second position. When placed in the first position and second position, the device forms a substantially triangular region having a center that corresponds to the site of injection.

The present disclosure relates to an insertion type drug injection device capable of being inserted into a body for injecting a drug into a skin, including: a main body having an open insert part and formed in a tubular shape having a hollow space therein, a needle assembly formed in the insert part, provided with a plurality of needles, and including a pneumatic port and a drug injection port, and a drug injection pipe inserted into the main body and connected to a drug injection port of the needle assembly, and an air flowing pipe connected to the pneumatic port.

The present disclosure relates to an insertion type drug injection device capable of being inserted into a body for injecting a drug into a skin, including: a main body having an open insert part and formed in a tubular shape having a hollow space therein, a needle assembly formed in the insert part, provided with a plurality of needles, and including a pneumatic port and a drug injection port, and a drug injection pipe inserted into the main body and connected to a drug injection port of the needle assembly, and an air flowing pipe connected to the pneumatic port.

A system for infusing medication into a mammalian subject is provided. The system includes an injection system for controlling a flow of fluid from a fluid reservoir to a needle. A sensor is provided that detects a characteristic indicative of the fluid pressure in the needle. The injection system controls the flow of fluid to the needle in response to the characteristic detected by the sensor and the sensor continuously detects the characteristic as the needle is inserted into the subject. The system further includes a conductive element for providing electric nerve stimulation, wherein the system provides electric nerve stimulation in response to the sensor detecting a pressure exceeding an upper limit.

Provided is an epidural device configured to inhibit or substantially or completely prevent further progression of an epidural needle upon entry of the needle into the epidural space. When the needle is inserted into the ligamentum of the patient's back, the device may be pressurized with fluid using the resistance of the dense ligament to maintain pressure. This pressurization may lock a pushing mechanism in place relative to the needle such that the pushing mechanism can be used to advance the needle. Once the epidural space is reached, the fluid (e.g., saline or air) enters the epidural space, and the release of pressure may cause the trigger mechanism to disengage from the sliding pusher, allowing the pusher to slide along the body of the construct. The device thus may provide the ability to detect the epidural space using pressure loss while preventing the needle from advancing into the dura once the space is reached. In a preferred aspect, the device may prevent premature triggering when there is a slow flow of fluid from the epidural needle into the surrounding tissue.

Provided is an epidural device configured to inhibit or substantially or completely prevent further progression of an epidural needle upon entry of the needle into the epidural space. When the needle is inserted into the ligamentum of the patient's back, the device may be pressurized with fluid using the resistance of the dense ligament to maintain pressure. This pressurization may lock a pushing mechanism in place relative to the needle such that the pushing mechanism can be used to advance the needle. Once the epidural space is reached, the fluid (e.g., saline or air) enters the epidural space, and the release of pressure may cause the trigger mechanism to disengage from the sliding pusher, allowing the pusher to slide along the body of the construct. The device thus may provide the ability to detect the epidural space using pressure loss while preventing the needle from advancing into the dura once the space is reached. In a preferred aspect, the device may prevent premature triggering when there is a slow flow of fluid from the epidural needle into the surrounding tissue.

An improved device delivers a fluid medicament to the subcutaneous tissue of a user. The device is better suited for patients with Parkinson's Disease and other central nervous system disorders, than conventional infusion devices. The device can include a reusable part including a drive component (e.g., motor) and control electronics and a disposable part including a medicament reservoir. Medicament can be evacuated from the medicament reservoir by a plunger assembly that includes a plunger attached to a lead screw that is rotated by a nut, all within the disposable part. The device can be fluidically coupled with the tissue via a flexible cannula. Various embodiments relate to an improved cannula insertion mechanism that delivers the cannula under a force applied by a spring. Various embodiments relate to improved filling of the device, for example, using a vial adapter and an automated filling station.

The devices, assemblies, and methods described herein utilize photoacoustic principals to create a jet of fluid using a ultrasonic resonance member and a pulsed laser light beam. The ultrasonic resonance member is a treated substrate having an liquid interface surface in contact with a fluid. When a pulsed laser light beam is applied to the treated substrate, pressure is generated via induced ultrasonic waves to urge the fluid into a jet stream.

An apparatus includes a housing coupled to a medicament container, which is coupled to a needle. An injection assembly is disposed within the housing and includes an energy storage member and an actuation rod. A distal end portion of the actuation rod is disposed within the medicament container. The energy storage member can produce a force on a proximal end portion of the actuation rod sufficient to move the distal end portion of the actuation rod within the medicament container. This can convey at least a portion of a substance from the medicament container via the needle when a distal tip of the needle is disposed within a first region of a target location. The force is insufficient to move the distal end portion of the actuation rod within the medicament container when the distal tip of the needle is disposed within a second region of the target location.

An apparatus includes a housing coupled to a medicament container, which is coupled to a needle. An injection assembly is disposed within the housing and includes an energy storage member and an actuation rod. A distal end portion of the actuation rod is disposed within the medicament container. The energy storage member can produce a force on a proximal end portion of the actuation rod sufficient to move the distal end portion of the actuation rod within the medicament container. This can convey at least a portion of a substance from the medicament container via the needle when a distal tip of the needle is disposed within a first region of a target location. The force is insufficient to move the distal end portion of the actuation rod within the medicament container when the distal tip of the needle is disposed within a second region of the target location.