An apparatus for injecting a fluid includes: an injector including a cylindrical container, a coupling portion, and a peripheral section; a needle assembly including a needle and a hub defining a contact area, the coupling portion configured to be coupled with the hub; and a needle retention device including a needle-retainer portion having a finger configured to radially extend over at least a part of the contact area of the hub, a container-contact portion defining a first opening configured to be attached in a form-fitting way onto the peripheral section of the container. When the apparatus is in its operational state, the hub of the needle assembly is coupled to the coupling portion, the container-contact portion is attached to the container, and the finger of the needle-retainer portion extends over the contact area of the hub when the needle retention device is in its retaining position.

A cannula having a coupling force and fixing force between an expansion part and a needle is provided. The needle is formed in a cylinder shape having a predetermined length, and includes a coupling means, which is formed at the outer surface thereof, and is inserted into the expansion part such that the coupling force can increase by the friction with the expansion part during adhesion, wherein the coupling means includes: a groove part formed, in an insertion region of the needle inserted into the expansion part, by the melting of the outer surface of the needle through laser machining so as to have a predetermined depth; and a protrusion part protruding in the outward direction of the needle so as to be connected to the groove part.

An apparatus useful for the rapid collection of blood from a subject (e.g., a blood vessel, such as the vein, artery or capillary bed of a bovine subject) and dispensing the blood therefrom into a test or collection device. In general, the apparatus comprises: (a) a body having a chamber formed therein, said chamber having an inlet and outlet, with said chamber configured to draw blood therein; (b) a hollow barrel connected to said chamber outlet; (c) an ejector operatively associated with said barrel; (d) a hollow needle connected to said body, with said hollow needle in fluid communication with said chamber through said inlet, so that blood can be rapidly drawn into said chamber through said needle. The needle is optionally removed and blood dispensed from the body into a test or collection device by actuating the ejector.

A disposable syringe set includes a syringe barrel in which a medicinal fluid inlet is formed and a plunger is fitted and coupled to an opening at the other side; a first screw-coupling portion formed on an outer circumference of the medicinal fluid inlet; a syringe needle hub in which a syringe needle is coupled to one end and an inner side at the other end is fitted and coupled to the outer circumference of the medicinal fluid inlet; and a second screw-coupling portion formed on an inner circumference of the syringe needle hub and configured to be coupled to the first screw-coupling portion. The first screw-coupling portion is formed as a female-thread-type coupling portion whose diameter is smaller than a reference diameter of the medicinal fluid inlet. The second screw-coupling portion is formed as a male-thread-type coupling portion configured to be coupled to the female-thread-type coupling portion.

A needle assembly (14), for use with a syringe (3) and a medicine cartridge (12); has a molded body (14B). A needle (14A) is housed in, affixed to, and reinforced by the molded body (14B). The needle (14A) has a single tube which includes a tip (311), and a tip-ward needle (31) extending ring-ward from said tip into the molded body (14B). The tip-ward needle becomes a cartridge needle (531) within the molded body (14B). The cartridge needle (531) extends tip-ward from the molded body (14B). The molded body (14B), is molded as a single structure, and includes: a domed cylinder (248), at the molded body (14B)'s tip-ward end; a flange (22) ringward of the molded body (14B); and fins (251). The fins are molded radially from the domed cylinder (248). The fins are vertically molded from the flange (22); and reinforce the fins to the flange. A second cylinder (244), is extended ringward from the flange (22). A conical portion (15) is molded ringward from the second cylinder (244). The cone flares out ring-ward to a widest part (631) of the conical portion (15), at a ringward end (500) of the molded body to an annular surface (510) at the widest part (631) of the conical portion (15). The cartridge needle (531) has a molded support located tip-ward of the annular surface (510). A needle shaft (514) is at a central longitudinal axis of the molded body (14B). The needle (14A) passes through needle shaft.

A cartridge syringe system includes a syringe (5). The syringe has a tip-ward direction and a ring-ward direction. The syringe (5) has a syringe body (9) and an actuator ring (7). A shaft (10) slidably mounts the actuator ring (7) to the syringe body (9), with a harpoon (11) at a tip-ward end of the shaft (10). The syringe body (9) has a spiral mount external to the syringe body (9) for removably mounting a sheath (20) to the syringe body (9), on a cooperating internal spiral sheath mount. The syringe body (9) and the sheath have similar openings. The sheath opening can be rotated to coincide with the syringe body opening, for inserting a needle assembly into the syringe body, or for removing the needle assembly. The sheath opening can be rotated to obstruct the syringe body opening, for retaining the needle assembly in the syringe body.

A securing device for an injection device which receives a syringe with a proximal end portion having a radially outwardly projecting flange, has a body with proximal and distal end portions, an opening for accepting the syringe, an outer surface, and a proximal end surface for contacting a distally-facing surface of the flange when the syringe is advanced distally, preventing further advancement. A securing arm includes a free end; a base end fixed to the outer surface; a first portion extending radially outwardly from the base end to permit the flange to pass; and a second portion extending radially inwardly in a rest position, contacting the flange as the syringe is advanced. The securing arm is elastically flexible to allow the free end to move radially outwardly, allowing the advancing flange to pass, and is biased to the rest position to secure the flange and the syringe against proximal movement.

The invention refers to a needle for follicular aspiration, having a base with a through-hole, inside of which a needle cannula is coupled, the needle cannula having a front aspiration end which protrudes from a front end of the base, and a rear end which freely protrudes from the rear end of the base, the through-hole of the base having a frustro- conical segment tapering from the rear end towards the front end of the base, forming a gap between the inner surface of the base and the outer surface of the needle cannula for coupling a biological sample collecting line.

The present disclosure provides medical devices, particularly medical grade needles with removable tips, as well as methods of needle tip installation and removal, and devices therefor. Needle tip installation and removal devices may include needle tip installation and removal tools and kits, including hand held and manipulated tools that facilitate the installation and removal of needle tips, particularly on vascular access port needles. Such installation and removal devices may provide more expedient hook up of the access port for the therapy. Also, the installation and removal of the needle tips may be conducted in a more sterile manner.

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.