22 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.

The invention relates to an injection device and method for particles, and the device comprises a liquid environment which is used for placing a carrier, and the particles are attached to the carrier; the special ultrasonic device is located in a liquid environment so as to generate a sound beam current in the liquid environment; the liquid supply flow channel is used for conveying an injection substance into a sound beam of the special ultrasonic device; the special ultrasonic device and the particles can be in a relatively fixed state, and the particles are located in an operable range of a sound beam of the special ultrasonic device, so that the injection substance is injected into the particles through the sound beam. According to the invention, injection aiming at single cells is realized, and particularly quantitative injection can be realized based on pulse type sound beam current.

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.

1. The name of the product of this design: needle-free injection device. 2. Purpose of the product of this design: used for needle-free injection, wherein component 1 is a pressurizing box, component 2 is a syringe, and the pressurizing box is used to pressurize the injection substance in the syringe. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design key points: 3D image of component 2.

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.

Methods of injecting a substance from a device and methods of operating a medical device are provided. A method of injecting a substance from a device, comprising: providing a device comprising a first compartment, a second compartment, and a third compartment; the first compartment and the second compartment are in fluid communication with a first opening covered by a first seal, and the second compartment and the third compartment are in fluid communication with a second opening covered by a second seal; the third compartment comprises a needle assembly with a spring and a needle; pressing the movable element to a first predetermined position such that the insertion rod moves the first seal away from the first opening, thereby allowing fluid communication between the first compartment and the second compartment; further pressing the movable element to a second predetermined position such that the insertion rod moves the second seal away from the second opening, thereby allowing fluid communication between the second compartment and the third compartment; and continuing to press the movable element to a third predetermined position such that the needle assembly injects the substance through the needle.

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 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 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.

Aspects of the present disclosure relate to a method of regenerating a hydrophobic interaction chromatography column to which an injection material has been added, the method comprising passing one or more column volumes of a basic solution through a hydrophobic interaction medium inside the column, wherein the basic solution exhibits a pH between about 10 and about 14, and a conductivity between 0.5 mS / cm and about 10 mS / cm, wherein materials bound to the hydrophobic interaction medium are removed. In some cases, the basic solution may comprise sodium hydroxide at a concentration of, for example, between about 0.1 mM and 10 mM.

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.

An electrosurgical apparatus for treating fluid-filled biological growths by replacing the fluid within the growth with a substance that assists in delivering treatment energy. The treatment energy may be microwave energy or may be thermal energy derived from microwave energy. The apparatus comprises an instrument having a radiating tip portion, and a fluid delivery mechanism for transporting fluid to and from a treatment zone located around the radiating tip portion. The fluid delivery mechanism comprises a rigid insertion element arranged to extend into the treatment zone, whereby fluid can be aspirated from the treatment zone, and a substance injected into the treatment zone to replace the aspirated fluid. The injected substance has dielectric properties selected to facilitate uniform delivery of treatment energy to biological tissue in the treatment zone.

A syringe for injecting an injectable substance into at least one of epidermal tissue and dermal tissue of a subject is disclosed. The syringe includes a housing and a control member disposed within the housing. A needle head configured to support a plurality of needles is operably coupled to the control member. A first means is provided in communication with the control member and configured to be driven by the control member to translate movement of the control member into movement of the needle along the injection direction and towards the injection position of the needle. The second device is configured to move the needle in a direction having a component perpendicular to the injection direction and without movement of the housing relative to the subject's skin.

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.

A syringe holder comprising a base 2, a tube guide 3 for releasably holding a routing a tube (T) in a defined position relative to the base 2. A syringe needle guide 4 for releasably holding a syringe