A device for controlled delivery of an injection material to tissue spaces of an eye that are not normally open, such as the subconjunctival space, the suprachoroidal space and the subretinal space. The device comprises an elongated body with a hollow cannula at the distal end, a slidable plunger at the proximal end, and a reservoir for the material to be injected residing between the cannula and the plunger. The plunger is mechanically coupled to a source of force such as a spring or pressurized gas reservoir such that an injection force is applied to the injection material within the device prior to delivery of the injection material into an eye. A valve that is normally closed to prevent flow of the injection material during application of the injection force is placed in the flow path between the cannula and reservoir. Due to the injection force placed on the injection material, actuation of the valve allows controlled flow from the reservoir through the cannula and into the tissue space.

Provided is a puncture needle that receives lower puncture resistance than conventional techniques. A puncture needle in accordance with an aspect of the present invention includes a needle body (10) that includes a main portion (12) and a distal portion (11) tapering from the main portion (12) and that is rotatable about a central axis (1) of the needle body (10), the needle body (10) including needle parts (15) separated by a boundary along the central axis, each of the needle parts (15) being independently translatable along the central axis (1).

The present invention provides a curved needle design which deflects to an advantageous angle when inserted within the medial posterior soft tissue of the patient lower jaw. The deflected needle tip is more perpendicular to the vertical wall of the posterior ramus and promotes the needle tip contacting bone proximate to the inferior alveolar nerve prior to injection of anesthetic. The needle design also improves the tactile feedback to the dental practitioner as the needle penetrates tissue and contacts bone.

An improved device capable of releasing a drug in response to stimuli such as a glucose concentration is provided. Provided is a drug delivery device, including a porous body such as a hollow fiber having biocompatibility and drug permeability, a stimuli-responsive gel composition filling inside of the porous body, and a drug surrounded by the gel composition inside of the porous body.

A non-coring needle for use in accessing an implanted medical device is disclosed. The non-coring needle is configured to include a compact bevel face relative to standard non-coring needles. In one embodiment, the non-coring needle comprises a hollow cannula that defines a lumen and terminates at a sharpened distal tip. The cannula includes a proximal portion and a bent distal portion. The distal portion defines a bevel face extending proximally from the distal tip, and the bevel face includes the lumen distal opening. The bevel face defines an open angle of at least about one degree with respect to a longitudinal axis of the proximal portion of the cannula. The bevel face is also laterally offset from the proximal portion of the cannula by an offset distance of no more than about 0.010 inch. A portion of the bevel face is dulled to prevent access port septum coring.

Disclosed herein are embodiments of spring cannulae, including one or more holes in the sidewall of the cannula. Some disclosed cannulae include a wire, helically wound to form coils, and at least one hole in the cannula that interrupts one or more of the coils. Some embodiments further include a fused region of the coils through which the hole passes. Some embodiments include a ring attached to ends of the interrupted coils, where the hole is surrounded by the ring. Some embodiments include a sheath that is attached to a radial surface of the interrupted coils, where the hole passes radially though the sheath.

The invention provides a pharmaceutical composition in form of emulsion or microemulsion for use in an endoscopic procedure, preferably said endoscopic procedure comprising the administration of said pharmaceutical composition to a human with the aim of improving and facilitating the resection of the lesion by raising the area where the lesion is located. The invention herein disclosed provides a method for performing an endoscopic procedure, said method preferably comprising the administration of a pharmaceutical composition in form of emulsion or microemulsion to a human.

This disclosure includes syringes, kits containing the same, and related methods. Some syringes are pre-loaded with paste and have a syringe body defining a reservoir having an internal first transverse dimension, a paste disposed within the reservoir, the paste having a solids concentration of greater than 50 mg/mL, a needle defining a lumen having an internal second transverse dimension that is smaller than the first transverse dimension, the needle configured to be in fluid communication with the reservoir to allow intracutaneous delivery of the paste, and a plunger and/or piston disposed within the reservoir and configured to be moved to dispense paste from the reservoir through the lumen. Some syringes include a fitting (e.g. Luer fitting) disposed on the syringe body and in fluid communication with the reservoir and a sealing cap disposed on the Luer fitting to seal the reservoir.

A sterile hydrogel composition that includes a crosslinked polymer, wherein the crosslinked polymer is an oxidation product of a thiol-modified hyaluronan and wherein the thiol-modified hyaluronan has a degree of modification of hyaluronan with thiol moieties of more than about 80 μmol per gram polymer, wherein the thiol-modified hyaluronan has a degree of modification of hyaluronan with thiol moieties of less than about 280 μmol per gram polymer, and wherein the thiol-modified hyaluronan has a mean molecular weight of at least 400 kDa.

A method for curing adhesive during assembly of glass syringes, including: dispensing adhesive onto a glass syringe; and curing the adhesive using a UV LED line array. The method may include one or both of pre-curing the adhesive using a UV LED spot and heating at least one of the glass barrel, needle and adhesive at one or more points during the method. A system for curing an adhesive during assembly of a glass syringe, the system including: a dispensing station for dispensing the adhesive onto a glass barrel and needle; a pre-curing station for pre-curing the adhesive; a curing station for curing the adhesive; and at least one infrared heater for heating at least one of the glass barrel, needle and adhesive at one or more points in the system. The glass syringe may be operated on by a subset of the stations in the system.