3067results about "Infusion needles" patented technology

This disclosure generally relates to medical devices that include a sensor transmitter assembly that includes a sensor assembly including a sensor module where a first sensor including a first sensor head having at least one first sensor contact pad is combined with a second sensor including a second sensor head having at least one second sensor contact pad. The sensor transmitter assembly also includes a transmitter assembly positioned on a top of the sensor assembly to form a single unit, the transmitter assembly having at least one transmitter contact disposed on a base of the transmitter assembly, where the first sensor contact pad(s) and the second sensor form a connection path with the transmitter contact(s).

The invention discloses an auxiliary device for preventing an injector from needling. The auxiliary device aims to solve the problems that an existing passive protection device is prone to being started by mistake, a push rod is prone to inclining, protection is not achieved after injection, and adaptability is poor. The device comprises an outer shell, a compression spring, an inner shell, a disposable prefilled syringe and a push rod. The shell is an external support and is provided with a guide bone position, an elastic step, a guide channel, an elastic buckle and the like; the inner shell is assembled in the outer shell, bears the injector and is connected with the compression spring; the push rod is in threaded connection with the syringe piston, and the actuating rod is inserted into the shell guide channel. The device realizes single-hand operation and automatic protection, does not need an additional activation step, is adaptive to a medicine production process, effectively reduces the risk of pricking injury, and avoids waste of liquid medicine. And the clinical use safety and the operation convenience are improved.

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 disclosure relates to an audible indicator in combination with a drug delivery device having a resilient force member capable of resting in either of two states. In a biased state, the resilient force member is biased and stores energy and in a relaxed state, the resilient force member is relaxed. The resilient force member releases the stored energy when changing from the biased state into the relaxed state, thereby generating an audible signal, wherein the resilient force member is supported by a retaining element in the biased state in order to prevent transition into the relaxed state.

The invention discloses an automatic positive pressure tube sealing device and a tube washing device in the technical field of medical auxiliary instruments. The automatic positive pressure pipe sealing device comprises a liquid supply mechanism, the liquid supply mechanism comprises a liquid storage pipe and a pushing assembly, and the pushing assembly is arranged in a containing cavity of the liquid storage pipe. The pushing assembly comprises a piston and a pushing rod, the piston is arranged in the containing cavity, an elastic piece is arranged between the pushing rod and the piston, mechanical energy generated when the pushing rod moves is converted into stable elastic potential energy, the elastic piece is used for slowly releasing the elastic potential energy, and the piston can apply pressure to liquid in the liquid storage pipe for a long time; the liquid in the liquid storage tube is in a positive pressure state for a long time and can be in a positive pressure state relative to the blood pressure of a human body for a long time, and blood is prevented from flowing back to the venous catheter. After the push rod moves towards the piston by a certain distance, the push rod and the liquid storage pipe can be kept relatively fixed, the elastic piece can release elastic potential energy in the direction close to the piston, the elastic potential energy of the elastic piece completely acts on the piston, and automatic pipe sealing operation is achieved.

The invention discloses an automatic injector which comprises a needle tip protection sleeve, a pen body, an anti-mistaken-touch injection assembly and an injector body, the anti-mistaken-touch injection assembly and the injector body are installed in the pen body, the anti-mistaken-touch injection assembly comprises a release part, a release spring, an injection spring, a sound production base and a push rod assembly, and a limiting sliding block is arranged on the release part; a release sliding rail matched with the limiting sliding block is arranged on the sound production base, in the initial state, the limiting sliding block is not clamped into the release sliding rail, in the assembling process, the injection assembly is rotated to enable the limiting sliding block to be clamped into the release sliding rail, and the needle tip protection sleeve can touch the release piece so as to trigger the push rod assembly to move. According to the scheme, installation is convenient and simple, the overall structure is stable and reliable, triggering is sensitive, and safety is high.

A vascular access instrument advancement device may include a housing and an extension tube extending through the housing. The extension tube may extend through the housing. The extension tube may include a first lumen and a second lumen. A blood collection pathway may extend through the first lumen. A wedge may be disposed within the housing and the second lumen of the extension tube. A pair of opposing pinch members may be configured to pinch the extension tube. The pair of opposing pinch members may be disposed within the housing proximal to the wedge and configured to move along the extension tube with the housing. An instrument may extend distally from the wedge. The instrument may be disposed within the second lumen. In response to moving the housing distally along the extension tube, the pair of opposing pinch members push the wedge distally and the instrument is advanced distally.

The invention discloses a puncture type automatic injection pen which comprises a trigger assembly, a power assembly, an injection assembly and a protection assembly. A limiting plug in the trigger assembly is in interference fit with a button, and the button is in limiting connection with the upper pen shell. A spring of the power assembly wraps a push rod and is installed in an outer body containing cavity, and the push rod compresses the spring and then is clamped into an outer body limiting hole to be pre-tightened. A medicine bottle of the pre-filling injection assembly is in interference fit with a rubber plug, the near end of a needle abuts against the medicine bottle, a protective cap is inserted into the far end, and the assembly can slide in the lower pen shell. The sliding sleeve of the protection assembly is located at the near end when not excited and moves to the far end after being excited. During excitation, the limiting plug is pulled to press the button, the push rod is released, the spring drives the push rod to impact the rubber plug, the pre-encapsulation injection assembly is pushed to move downwards, and the needle head punctures to complete injection; and after excitation, the sliding sleeve is screwed to lock and cover the needle head. The injection pen is operated by one hand, is rapid in injection, can prevent the needle from being accidentally injured, and ensures reliable medication.

The present disclosure relates to a medicament delivery device comprising a housing having a proximal end and contains a container of medicament positioned within the housing in a medicament container holder. The medicament container can be dual chambered, for example a pre-filled medicament container having a needle, a dose of medicament and one or more sliding stoppers. The medicament container holder can be configured with a recess or pocket to accommodate the loading of a dual chambered container and interact with an inside surface of the housing to rotationally fix the container holder relative to the housing and the medicament container. A tubular activation member, e.g., a needle cover, is slidably positioned within a housing of the delivery device to move from a first position to a second position, and then to a final locked position. A plunger rod can only move proximally relative to the needle cover when the needle cover is in the second position.

This invention belongs to the field of medical syringe technology, specifically referring to a syringe connector, including a main body with an inlet end and an outlet end. The inlet end connects to the syringe. The main body has a flow channel with both ends communicating, and a sealing element is placed within the flow channel, dividing the flow channel into an inlet channel and an outlet channel. After the connector is connected to the needle, the needle passes through the sealing element and extends into the inlet channel, allowing liquid from the syringe to flow into the needle. The main body can take various shapes, as long as both ends are cylindrical. A common design is a tubular structure for the entire main body. The inlet end enables the connector to be matched with the syringe; the outlet end enables the needle to be matched with the connector. The connector acts as a carrier to connect the syringe to a mismatched needle. Furthermore, the syringe connector can prevent the waste of existing resources in the market.

Caps and other luer taper medical devices having a volume displacing protrusion are described. The volume displacing protrusion can extend in an axial direction away from an end wall inside the female hub and be configured to create a seal that can be substantially airtight with a distal end of a syringe that is engaged with the cap or other luer taper medical device. The volume displacing protrusion of the cap or other luer taper medical device can create a seal with a distal end of a syringe before an outside surface of the syringe tip creates a seal with the luer taper of the female hub.

The automatic injector comprises an injection assembly, the injection assembly comprises a sound production base, and the periphery of the sound production base is movably sleeved with a sound production part and a release part; a limiting block and a boss located on one side of the limiting block are arranged on the periphery of the sound production base, a boss slope is arranged on the side, facing the limiting block, of the boss, a limiting groove is formed between the boss slope and the limiting block, and the release piece is provided with a first protrusion capable of being clamped in the limiting groove. The first protrusion is provided with a first end face matched with the inclined face of the boss, a second end face matched with the limiting groove and a third end face matched with the limiting block. The automatic injector is reliable and practical, false triggering of the automatic injector can be effectively prevented under the accidental conditions such as falling, the impact resistance and the stability of a product structure after injection are remarkably improved, the problem of limiting failure caused by accidental stress is avoided, early sound production caused by early displacement of a push rod linkage piece can be effectively prevented, and the service life of the automatic injector is prolonged. And the stability of the sounding function of the automatic injector after injection is improved.

Provided is a vented needle hub assembly for infusion of a liquid into subcutaneous tissue. More specifically, the vented needle hub assembly is provided by a needle hub having an inlet side and an outlet side and a fluid passageway therebetween; an infusion needle in fluid contact with the fluid passageway and extending from the outlet side; a flexible tubing joined to the inlet side in fluid contact with the fluid passageway; at least one vent disposed in a sidewall of the needle hub, the vent in fluid contact with the fluid passageway; and a porous plug disposed within each at least one vent adjacent to the fluid passageway, the porous plug structured and arranged to distinguish gas from liquid, gas permitted to pass from the fluid passageway through the porous plug and out the at least one vent. An associated method of use is provided as well.

A safety mechanism syringe includes a syringe, a needle, a holder, and a needle cover displaceable relatively with respect to the syringe along an axial direction of the syringe from a use position toward a protection position. The holder includes a locking portion. At least one member of the holder and the needle cover includes a protruding portion that protrudes toward the other member, and the other member includes a restriction portion that abuts on the protruding portion to restrict relative displacement of the needle cover with respect to the syringe along the axial direction of the syringe from the protection position toward the use position.

The invention provides an automatic injection device which comprises a needle bin system, a needle head system, a needle head system, a needle head system, a needle head system, a needle head system and a needle head system, the driving system is detachably connected with the needle bin system, the driving system is provided with a first-stage driving mechanism and a second-stage driving mechanism, the first-stage driving mechanism is used for driving an injection needle of the pre-filling injector to pierce an injection part, and the second-stage driving mechanism is used for driving an injection push rod of the pre-filling injector to move; and the liquid medicine is injected into the injection part through the injection needle. The automatic injection device can be repeatedly used, more importantly, the automatic injection device is further provided with the first-stage driving mechanism and the second-stage driving mechanism, the first-stage driving mechanism is used for puncturing the injection needle on the pre-filling injector into the body by a certain depth, and then the second-stage driving mechanism drives the injection push rod of the pre-filling injector to move; all the liquid medicine is injected into the injection part, time sequence control is achieved, and therefore the liquid medicine injection effect can be ensured.

A pre-filled dual-chamber medical agent delivery system assembled and configured to allow delivery of a single dose of a combined therapeutic agent (e.g., vaccine, drug, medicament, etc.) from a Blow-Fill-Seal (BFS) vial to a patient. The delivery assembly generally includes a modular design consisting of separately constructed components cooperatively arranged and coupled to one another, such as to facilitate delivery of a reconstituted lyophilized agent to a patient.

A hold assistance device for use with a medicament delivery device is described. The hold assistance device includes: a housing configured to be coupled to a medicament delivery device; a chamber for containing air, the chamber having a proximal end and a distal end; and a piston movable within the chamber between the proximal and distal ends of the chamber, wherein the piston is arrangeable in an activated position inside the chamber in which the piston is arranged proximate to the proximal end of the chamber such that the chamber is at least partially evacuated of air and movement of the piston towards the distal end of the chamber is resisted by a vacuum force.

An injector includes a housing, a needle, and a needle shield removably coupled to the needle. A guard assembly is coupled to the housing and includes a guard holder coupled to the needle shield and having at least one engagement feature extending radially inward and a needle guard extension removably coupled to the guard holder. The needle guard extension is coupled to the guard holder and separated from the housing in an initial position, coupled to the guard holder and coupled to the housing in an engaged position, and separated from the guard holder and coupled to the housing in an active position. The guard holder couples to the needle shield to remove the needle shield from the needle when the needle shield extension is moved from the engaged position to the active position.

Disclosed are a method for controlling an electrical treatment device with injection function and an electrical treatment device. The method includes: driving ends of a plurality of needle bodies to penetrate at least one target depths of a skin tissue by a actuator, and controlling the plurality of the needle bodies to electrically connect to an electric energy output assembly to release an electric energy at least one target depths of the skin tissue, and / or controlling the plurality of the needle bodies to connect to a liquid storage unit to perform drug injection based on at least one target depths of the skin tissue.

The utility model discloses a hydrotherapy needle. The hydrotherapy needle comprises a needle body, a needle seat and a needle cap, a first positioning structure is arranged on the needle seat and is used for identifying the position of the needle seat by a machine; the needle cap is connected with the needle base in a matched mode, a second positioning structure is arranged on the needle cap and used for recognizing the position of the needle cap relative to the first positioning structure and the orientation of the needle cap through a machine, and the needle body is suitable for being fixed through the needle base and / or the needle cap. When an automatic machine is used for positioning and assembling the needle base and the needle cap, the first positioning structure and the second positioning structure can serve as recognition feature points of the needle base and the needle cap respectively, and then the positioning precision and the assembling precision of the machine for the needle base and the needle cap are improved. According to the technical scheme, the problems that an existing hydro-optical needle is low in assembling precision and assembling efficiency are solved, and assembling convenience of the hydro-optical needle is improved.

A needle is provided for subretinal injection. The needle may comprise a concentric assembly 100 forming a lumen 140 for a substance to be injected below a retinal surface layer, the concentric assembly comprising an outer tube 130, an intermediate tube 120, and an inner tube 110 comprising a tip 116 for piercing the retinal surface layer, wherein the tip is at a distal end of the inner tube, wherein the inner tube extends axially from a distal end of the intermediate tube, wherein the inner tube is at least partially translucent to optical coherence tomography (OCT), wherein the tip is beveled, wherein the inner tube has an inner tube outer diameter of 120µm or less at an onset of the bevel. Furthermore, a needle system is provided which comprises the needle and a flexible tubing to supply the substance to the needle.

An auto-injector for administering a dose of a liquid medicament includes an elongate tubular case and a carrier subassembly including a tubular carrier slidably arranged inside the case. The carrier is adapted to contain a syringe with a hollow injection needle, a drive spring, and a plunger for forwarding load of the drive spring to a stopper of the syringe, wherein the syringe is lockable for joint axial translation with the carrier, wherein the drive spring acts between the carrier and the plunger, wherein the plunger, in an initial state, is locked to the carrier by a ramped engagement to the carrier and by being prevented from rotating out of this ramped engagement, depending on a relative longitudinal position of the carrier in the case, and wherein the plunger is arranged to be released for rotating out of the ramped engagement.

An auto-injector comprising an elongate housing containing a syringe. The housing having an orifice intended to be applied against an injection site. The syringe is slidably arranged with respect to the housing. A spring pushing the needle from a covered position into an advanced position, operating the syringe and covering the needle. An activator arranged to lock the spring prior to manual operation and capable of, upon manual operation, releasing the spring means for injection. A first gear arrangement and a second gear arrangement arranged fro converting torque from a first end and a second end of the torsion spring into a translative force. The first end groundable in the housing while the second end acts on a plunger through the second gear arrangement for advancing the needle and supplying the dose.

The utility model discloses a needle assisting device and a medical device. The needle assisting device comprises an implanting seat; a remaining needle; the puncture needle seat comprises a puncture needle; the bottom plate comprises a bottom plate buckle; an indwelling needle is detachably fixed below the implanting seat; the implantation seat is detachably connected with the puncture needle seat, the puncture needle seat is coupled with the implantation seat during needle implantation, and the puncture needle seat is dissociated from the implantation seat during needle withdrawal; the puncture needle penetrates through the remaining needle. In the application, the indwelling needle is directly fixed by the implantation seat, and the implantation seat is coupled with the puncture needle seat, so that the puncture needle seat and the puncture needle move downwards along with the implantation seat in the needle implantation process, before the implantation seat and the puncture needle seat are decoupled, the puncture needle is ensured to penetrate through the indwelling needle, and when the implantation seat and the puncture needle seat are decoupled, the puncture needle is ensured to penetrate through the indwelling needle. The puncture needle seat and the puncture needle are pushed by the needle withdrawing spring to move away from the bottom plate, and if the remaining needle is not implanted in place at the moment, the remaining needle can be continuously pushed downwards by the implanting seat until the remaining needle is reliably buckled with the bottom plate buckle. The device has the advantages of stable and reliable use, high needle planting success rate and the like.

A medical instrument holder includes a base block configured to removably mount to a placement surface, and has prongs extending therefrom. A receiving block formed of soft and resiliently flexible material, such as an elastomeric foam, may be impaled on the prongs. A medical instrument (such as a syringe or scalpel) may be inserted into the receiving block, thereby effectively removably holding the medical instrument with respect to the placement surface. The receiving block may be discarded after use, and replaced with another receiving block for subsequent use. The holder is particularly useful for receiving the cap of a hypodermic syringe within the receiving block, allowing the syringe to be held in a ready-to-use location, and allowing one-handed removal of the syringe from the cap grasped by the receiving block.

A method for curing adhesive during assembly of a glass syringe comprises the following steps a.) to d.): a.) providing an adhesive, a glass barrel and a needle; b.) dispensing the adhesive onto the glass barrel and / or needle; c.) arranging the needle onto the barrel; d.) curing the adhesive by means of radiation; and the method further comprises: heating at least one of the glass barrel, needle and adhesive by means of hot air.

The present invention relates to a drug injection multi-needle of which the surface to come into contact with the skin provides either a cooling or warming sensation so that pain can be reduced and, simultaneously, a hemostatic effect can be increased and, specifically, comprises: an injection part to which a drug syringe for storing a drug is coupled and into which the drug is injected by means of pressure; a needle coupling part which is coupled to the front surface of the injection part and to which a plurality of needles to penetrate the skin are coupled; a suction part into which the needle coupling part is inserted and which suctions air at a position coming into contact with the skin; and a temperature-regulating part which is formed on the front surface of the suction part and which regulates the temperature.

A catheter assembly includes: an inner needle configured to puncture a living body; a catheter configured to allow the inner needle to be inserted therethrough; a catheter hub located at a proximal end of the catheter; a valve body located in an internal space of the catheter hub; an opening member located on a proximal side of the valve body, the opening member comprising: a cylindrical barrel portion, a neck portion extending from a distal end of the barrel portion, wherein a diameter of the neck portion is smaller than a diameter of the cylindrical barrel portion, and a foot portion extending to a proximal side of the barrel portion, wherein the opening member is configured to move in a distal direction to open the valve body; and a movement inhibiting mechanism that resists movement of the opening member in the distal direction via a contact portion.

An infusion system comprising: a device for delivering fluid to a tissue of the user; a hub engaging the device for delivering fluid, the hub including an introducer needle for introducing an infusion catheter or an analyte sensor into the tissue of the user, the hub configured to be removable by the user; and an activation mechanism for moving the hub toward the user to thereby cause the introducer needle to be inserted into the tissue of the user.

The disclosure relates to a drug delivery device including a plunger disposed within a case and an audible indicator that comprises a resilient element. The plunger is slidable from a proximal position to a distal position within the case and the resilient element is in a first configuration when the plunger is in the proximal position, such that the resilient element is deflected radially outwards to a second configuration during movement of the plunger from the proximal position towards the distal position. The resilient element moves from the second configuration towards the first configuration when the plunger moves towards or reaches the distal position, thereby generating an audible and tactile signal.