13 results about "Injected substance" patented technology

Provided is an injection device for injecting a substance, comprising a case receiving a barrel containing the substance to be injected and comprising a stopper movable inside the barrel, a plunger unit comprising a triggering portion, the plunger unit being coupled to the stopper and movable with regard to the case from an initial, proximal position to a final, distal position to inject the substance when the barrel is provided into the case, an end-of-dose indicator movable from a hidden position to a visible position in which at least one portion of the end-of-dose indicator is visible to a user, hiding means for locking the end-of-dose indicator in the hidden position and configured to be unlocked by the triggering portion of the plunger unit when the plunger unit reaches an indicator position.

An injection device has a longitudinal axis X that defines distal and proximal axial directions and includes a needle formed from relative rigid and inflexible material. The device also includes an abutment member at its distal side and the needle is movable to project in a distal direction beyond the abutment member along an axis T that is inclined relative to the longitudinal axis X.

To provide an injector capable of preventing an injection material from leaking from a storage part with a simple structure.SOLUTION: An injector 1 is a device for injecting an injection material M1 between a rail and a wheel. The injector 1 includes: a mixing pipe part 7 for mixing the injection material M1 with compressed gas G; an inflow pipe part 9 for making a part of the compressed gas G flowing into the mixing pipe part 7 flow into a storage part 6R for storing the injection material M1; and a conveying pipe part 15 for conveying the injection material M1 to the mixing pipe part 7 from a lower side toward an upper side by the compressed gas G so as to make the injection material M1 flow into the mixing pipe part 7 from inside of the storage part 6R together with the compressed gas G flowing into the storage part 6R from the inflow pipe part 9.SELECTED DRAWING: Figure 3

A needle-injection catheter includes a catheter body having a distal end, a proximal end, a stiff proximal portion, a flexible distal portion, and a delivery lumen extending therethrough. In a first embodiment, a straight injection needle extends coaxially from a distal tip of the flexible portion of the catheter body, and a plurality of penetration limiting elements positioned circumferentially about a base of the straight injection needle and configured to fold radially inwardly against a shaft of the needle when constrained in a tubular lumen and to extend radially outwardly when unconstrained. In a second embodiment, a helical needle extends from the distal tip of the flexible portion of the catheter body. The helical needle has at least one helical delivery lumen connected to receive an injectable substance from the delivery lumen of the catheter body.

A medical injection device including: a handle to administer injection to a subject, the handle having a proximal end and a distal end, the proximal end configured to attach to an injection substance supply, and the distal end configured to attachment to a working channel, the handle comprising a plurality of nested tubular members; a needle having a proximal end, a distal end, and a lumen configured to convey injection substance from the proximal end to the distal end; and a sheath having a proximal end and a distal end and configured to shroud the distal end of the needle, wherein the needle is situated within the sheath, wherein the plurality of nested tubular members are user operable to move independently of each other, wherein the plurality of nested tubular members are user operable to independently extend and retract the needle and the sheath from the working channel.

In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure relates to an auto-injector device that can be used for injection of ophthalmological formulations. The auto-injector device can function in two stages, where a lubricious material is released in a first stage and a drug delivery composition is released in a second stage. The present disclosure provides for method of using these injector devices.

A needleless injector includes a housing part including an accommodating space that is configured to accommodate a substance intended for injection an actuator configured to generate an ejection energy and a plunger coupled to the housing part so as to define the accommodating space, including a weakened part and a distal end, and configured to receive the ejection energy from the actuator as a driving force. The plunger is further configured to move in the housing part by the driving force so that the distal end reaches to a deepest part of the housing part when the driving force is equal to or smaller than a predefined force, and deform at the weakened part by the driving force before the distal end reaches to the deepest part of the housing part when the driving force exceeds the predefined force.

The present disclosure provides sterilizable and re-usable devices for injecting substances including, without limitation, viscoelastics, liquids, gels, solutions, emulsions, suspensions, other fluids, and the like, during surgical procedures.

A method for performing liquid chromatography includes receiving, by a receptor of a liquid chromatography sample manager, an original capped vial containing an injectable substance, processing, by an automated system of the liquid chromatography sample manager without human intervention, the injectable substance, and injecting, by the automated system of the liquid chromatography sample manager without human intervention, the injectable substance into a chromatographic flow for analysis. A liquid chromatography sample manager includes an automated system configured to, without human intervention, process the injectable substance; and inject the injectable substance into a chromatographic flow for analysis.

A needleless injector includes a housing part including an accommodating space that is configured to accommodate a substance intended for injection an actuator configured to generate an ejection energy and a plunger coupled to the housing part so as to define the accommodating space, including a weakened part and a distal end, and configured to receive the ejection energy from the actuator as a driving force. The plunger is further configured to move in the housing part by the driving force so that the distal end reaches to a deepest part of the housing part when the driving force is equal to or smaller than a predefined force, and deform at the weakened part by the driving force before the distal end reaches to the deepest part of the housing part when the driving force exceeds the predefined force.

The present disclosure provides sterilizable and re-usable devices for injecting substances including, without limitation, viscoelastics, liquids, gels, solutions, emulsions, suspensions, other fluids, and the like, during surgical procedures.

The invention relates to a device (1) for subcutaneous injection of a substance into a plant, said device comprising an injection head comprising (i) a needle holder (4) holding (ii) a substantially straight needle (5) defining a longitudinal axis (A) of the device, said needle (5) being penetrated by a channel in its centre, said channel opening at at least one hole in the side wall of the needle (5) so that the hole is not located at the end of the needle intended to penetrate the plant, and (iii) a guide (3) having a cavity in which the needle holder (4) and the needle (5) can move along the longitudinal axis (A) of the device (1), said cavity also having an opening to allow the needle (5) to pass so that it can be inserted under the bark of the plant; and a striking mechanism (10) capable of striking the needle holder (4) with a power of less than 10 Joules in order to facilitate the insertion of the needle (5) under the bark of the plant.

The invention provides a hemostasis valve and a catheter sheath set device comprising the hemostasis valve, and relates to the field of catheter sheath sets, the hemostasis valve comprises an outer tube and an inner tube, a pressurization space is formed between the inner surface of the outer tube and the outer surface of the inner tube, and the inner tube is composed of a composite film; the composite film is formed by compounding a porous ePTFE layer and a high-density polyethylene film. And the HDPE can fully fill the pores of the ePTFE. The pressurizing space is pressurized to a sufficient pressure by at least one pressurizing substance to expand the inner tube and prevent backflow bleeding; the pressurizing space is formed by connecting the first end of the outer pipe and the first end of the inner pipe together in a sealed mode and connecting the second end of the outer pipe and the second end of the inner pipe in a sealed mode. According to the hemostasis valve, an active adjusting structure of the outer pipe, the inner pipe and the pressurizable space is adopted, the swelling amount of the inner pipe is changed by injecting substances into the pressurizable space, and controllable adjustment of the sealing strength is achieved; the inner pipe is formed by compositing multiple layers of porous ePTFE and an HDPE film, pores of the ePTFE are fully filled with HDPE, and the inner pipe has high strength and sealing performance.