The dual syringe with percutaneous cannula is a medical device for harvesting and transferring cells for autologous transplantation without the requirement of a surgical setting or ambulatory care. The dual syringe is a closed sterile system that allows for the harvesting syringe to harvest the cells/tissue from a first location of a patient which is then centrifuged to aggregate the cells. The aggregated cell pellet is transferred to a transfer syringe. The cell pellet is then reinjected by the transfer syringe into the patient at a second location for therapeutic purpose. The percutaneous cannula permits insertion of a cannula, with the assistance of a needle, without the need of a surgical incision or trocar.

Provided is a needle removal operation cover with which a user can safely perform an injection needle removal operation even when a needle tip is directly inserted into the needle removal operation cover, and with which the user can remove the injection needle without requiring a wrist twisting motion. In a needle removal operation cover which is configured such that an injection needle which is detachably and threadedly mounted on a distal end of an injection cylinder is threadedly removed by rotating the injection needle, the needle removal operation cover is formed in a cylindrical shape such that a needle tube of the injection needle including a needle tip is accommodated in the needle removal operation cover and integral mounting of a needle hub in the needle removal operation cover is allowed, a flange body for a rotating operation is formed on a cylindrical outer peripheral surface in a projecting manner, an outer periphery of the flange body is formed of a plurality of continuous mountain-like ridge portions, and among the mountain-like ridge portions, the mountain-like ridge portions which correspond to a rotational direction along which the injection needle is released from the injection cylinder are formed into a shape which allows easy engagement of a finger for an operation with the ridge portions.

A hypodermic interface assembly includes a cannula and a hub. The hub is defined by a first portion and a second portion. The second portion of the hub is breakably-connected to the first portion of the hub. The cannula is joined to the second portion of the hub. The second portion of the hub is defined by an outer head surface portion having a first geometry. The second portion of the hub also includes an outer neck or groove surface portion having a second geometry. The first geometry of the outer head surface portion is greater than the second geometry of the outer neck or groove surface portion.

A hypodermic interface assembly is disclosed. The hypodermic interface assembly includes a hub, a cannula, and a cannula carrier. The cannula carrier is non-removably-connected to the cannula. The cannula carrier is controllably separable from the hub.

A syringe with a filter is disclosed. When liquid medicine for treatment such as an analgesic is suctioned into the syringe by using a syringe needle and then injected into a human body through the syringe needle, foreign substances generated in an ampule and the like are filtered in the syringe prior to the liquid medicine being injected into the human body as the foreign substances are suctioned into the syringe through the syringe needle. In addition, the filter is configured so that the filter can be installed into the syringe with ease.

An injection apparatus for sequentially injecting a patient with at least two medicaments may include a hand-held unit comprising a grip for being held by an operator, a single needle, a base unit coupled to the hand-held unit via at least one connecting tube, at least two containers for holding medicaments removably coupled to the base unit, and at least one pump. The at least one connecting tube can be flexible enough to enable easy maneuvering of the hand-held unit and rigid enough to prevent widening of the tube due to inner pressure when medicaments pass from the containers to the hand-held unit. The injection apparatus can be used to administer the at least two medicaments sequentially at different injection points.

A needle hub assembly for a pen needle includes a needle hub, a cannula or needle coupled to the needle hub, a retractable and compressible sleeve covering at least one end of the cannula, and an outer cover. The outer cover encloses the needle hub and the retractable sleeve. The retractable sleeve is coupled to the hub to cover the end of the cannula where the sleeve can pass through or can be pierced by the cannula and the sleeve retracts axially on the cannula. The sleeve is resilient and returns to an original configuration when an insertion force is released. The needle hub can have a first sleeve to cover a patient end of the cannula, and second sleeve to cover a non-patient end of the cannula where the sleeves retract onto the cannula or hub and expand to the original configuration to cover the ends of the cannula.

A pen needle, comprising a reusable adapter configured for attachment to a distal end of a medication pen, the adapter having a proximal needle for accessing the interior of the pen injector and a fitting on the distal side for mating with a patient end needle assembly, and a disposable patient-end needle assembly having a base configured for mating with the fitting on the distal side of the adapter and a patient-end needle extending from a distal end of the base.

Needle assembly having the following modes of operation; a first mode wherein the safety shield can move to a first retracted position allowing injection of the piercing portion of needle from a position at least partially covering the piercing portion of the needle and a second mode wherein the safety shield moves to a position protecting the piercing portion of the needle after the first mode and is prevented from moving back to a position exposing the piercing portion of the needle.

A needling system, for use in areas where thin hollow needles are used to inject or aspirate fluids and gases, is provided and comprises a thin, rigid tube body needle that is open on both ends and throughout the length with one sharp end. The needle body and hub are designed such that the needle has a ball end that fits within a socket of the hub, forming a seal and allowing the needle to be oriented non-colinearly and non-parallel to the central axis of the hub. Needle orientation, relative to the hub, can be limited from a conical volume to a planar or multi planar angular orientations. The needle so configured allows the user to circumvent an obstacle that otherwise inhibits direct linear access to a point-of-interest by providing a device that can fit around or between obstructions providing optimal direct path towards the desired therapy delivery point.