Gas canisters are provided that include an elongate body comprising a barrel region defining a first diameter, an enclosed first end, and a neck region extending from the barrel region to an open second end defining an end wall, the elongate body defining a central axis extending between the first end and the second end; a cap attached to the neck region to close the second end of the elongate body and enclose the cavity, the cap comprising an end wall including an opening therethrough communicating with the cavity, and a seat surrounding the opening on an interior of the end wall; and a sealing member within the neck region configured to engage the seat to seal the opening, the cavity filled with pressurized fluid.
Gas canisters are provided that include an elongate body comprising a barrel region defining a first diameter, an enclosed first end, and a neck region extending from the barrel region to an open second end defining an end wall, the elongate body defining a central axis extending between the first end and the second end; a cap attached to the neck region to close the second end of the elongate body and enclose the cavity, the cap comprising an end wall including an opening therethrough communicating with the cavity, and a seat surrounding the opening on an interior of the end wall; and a sealing member within the neck region configured to engage the seat to seal the opening, the cavity filled with pressurized fluid.
B67C 3/10 - Bottling liquids or semiliquidsFilling jars or cans with liquids or semiliquids using bottling or like apparatus using counterpressure, i.e. filling while the container is under pressure preliminary filling with inert gases, e.g. carbon dioxide
B67B 3/02 - Closing bottles, jars, or similar containers by applying caps by applying flanged caps, e.g. crown caps, and securing by deformation of flanges
3.
INJECTION DEVICES AND METHODS FOR MAKING AND USING THEM
Devices and methods are provided for delivering an agent into a patient's body using an injection device that includes a drive module and an injector module coupled to the drive module. The drive module includes a canister and puncture mechanism in a first chamber, a plunger in a second chamber communicating with the first chamber, and an actuator that moves the puncture mechanism to cause a puncture pin thereon to penetrate a septum of the canister and cause the gas within the canister to flow through the first chamber around the canister, and into the second chamber. The injector module includes a piston slidably disposed within an agent chamber and coupled to the distal end of the plunger such that, when the plunger moves from a retracted position to an extended position, the piston is advanced within the agent chamber to deliver an agent therein into a patient's body.
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
4.
MICRO-VOLUME INJECTORS WITH DOSE GUIDANCE AND METHODS FOR USE
Injector devices and methods for using them to deliver medicament into a patient's body, e.g., sub-retinally within an eye, are provided. The injector includes a cartridge including a piston slidably disposed within an interior for delivering medicament within the interior through an outlet, and a driver including a plunger coupled to the piston, a source of pressurized fluid, and an actuator member for opening a flow path at least partially between the source and the plunger to advance the plunger and piston to deliver medicament from the interior. One or more sensors are operatively coupled to the plunger to measure displacement of the plunger, a processor is coupled to the sensor(s) for analyzing sensor signals to measure volume of medicament delivered from the interior, and an output device, e.g., one or more LEDs or speakers, provide outputs related to the volume of medicament delivered.
A61M 5/315 - PistonsPiston-rodsGuiding, blocking or restricting the movement of the rodAppliances on the rod for facilitating dosing
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
A61M 5/24 - Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
A61M 5/28 - Syringe ampoules or cartridges, i.e. ampoules or cartridges provided with a needle
5.
MANUAL INSERTION AUTO-INJECTORS AND METHODS FOR USE
An auto-injector includes a front housing carrying a syringe and an activation cap covering a needle of the syringe, and a rear housing including a drive assembly for automatically deliver agent(s) from the syringe when the device is activated. The rear housing includes a gas canister and an opener mechanism for opening the canister into a set of chambers of an inner housing within the outer housing. When a contact surface of the activation cap is pressed against a subject's skin to insert the needle, the activation cap retracts into the outer housing and activates the opener mechanism to release pressurized gas from the canister into the chambers to advance a plunger within the inner housing to deliver the agent(s) from the syringe into the subject. After the injection is completed and the device is withdrawn away from the skin, the activation cap automatically advances to cover the needle.
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
6.
MANUAL INSERTION AUTO-INJECTORS AND METHODS FOR USE
An auto-injector includes a front housing carrying a syringe and an activation cap covering a needle of the syringe, and a rear housing including a drive assembly for automatically deliver agent(s) from the syringe when the device is activated. The rear housing includes a gas canister and an opener mechanism for opening the canister into a set of chambers of an inner housing within the outer housing. When a contact surface of the activation cap is pressed against a subject's skin to insert the needle, the activation cap retracts into the outer housing and activates the opener mechanism to release pressurized gas from the canister into the chambers to advance a plunger within the inner housing to deliver the agent(s) from the syringe into the subject. After the injection is completed and the device is withdrawn away from the skin, the activation cap automatically advances to cover the needle.
Injector devices and methods for using them to deliver medicament into a patient's body, e.g., sub-retinally within an eye, are provided. The injector includes an injector cannula having a soft injector tip. A retractable tip protector tube is slidably disposed on the flow cannula between an extended position in which the tip protector tube covers the entire injector tip, and a retracted position in which the tip protector tube is retracted proximally thereby exposing at least part of the injector tip. Accordingly, the tip protector tube protects the injector tip from being damaged while advancing the injector tip to a target injection site.
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
A61M 5/34 - Constructions for connecting the needle
An auto-injector includes a drive assembly within a housing carrying a syringe including a needle adjacent an activation cap within the housing's distal end. The drive assembly includes a first chamber carrying a gas canister, a plunger within a second chamber coupled to the syringe, and proximal and distal chambers. The activation cap is pressed against a subject's skin to direct the drive assembly proximally to open an outlet of the canister to release pressurized gas into the first chamber, whereupon the gas enters the proximal chamber to generate a distal force to advance the drive assembly to direct the needle into the subject and enters the second chamber to advance the plunger to deliver agents from the syringe into the subject. After the plunger advances, the gas enters the distal chamber to generate a proximal force to retract the drive assembly to direct the needle back into the housing.
An auto-injector includes a drive assembly within a housing carrying a syringe including a needle adjacent an activation cap within the housing's distal end. The drive assembly includes a first chamber carrying a gas canister, a plunger within a second chamber coupled to the syringe, and proximal and distal chambers. The activation cap is pressed against a subject's skin to direct the drive assembly proximally to open an outlet of the canister to release pressurized gas into the first chamber, whereupon the gas enters the proximal chamber to generate a distal force to advance the drive assembly to direct the needle into the subject and enters the second chamber to advance the plunger to deliver agents from the syringe into the subject. After the plunger advances, the gas enters the distal chamber to generate a proximal force to retract the drive assembly to direct the needle back into the housing.
An auto-injector includes a drive assembly within a housing carrying a syringe including a needle adjacent an activation cap within the housing's distal end. The drive assembly includes a first chamber carrying a gas canister, a plunger within a second chamber coupled to the syringe, and proximal and distal chambers. The activation cap is pressed against a subject's skin to direct the drive assembly proximally to open an outlet of the canister to release pressurized gas into the first chamber, whereupon the gas enters the proximal chamber to generate a distal force to advance the drive assembly to direct the needle into the subject and enters the second chamber to advance the plunger to deliver agents from the syringe into the subject. After the plunger advances, the gas enters the distal chamber to generate a proximal force to retract the drive assembly to direct the needle back into the housing.
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
11.
DRIVE MODULES FOR INJECTORS, AND SYSTEMS AND METHODS FOR USING SUCH DRIVE MODULES
An injection device for delivering an agent into a patient's body including a drive module and an injector module. The drive module includes a canister and puncture mechanism in a first chamber, a plunger in a second chamber communicating with the first chamber, and an actuator that moves the puncture mechanism to cause a puncture pin thereon to penetrate a septum of the canister and cause the gas within the canister to flow through the first chamber into the second chamber. The plunger includes a proximal end including a piston and a distal end and is configured such that gas entering the second chamber causes the plunger to move from an initial position to an extended position for delivering one or more agents from the injector module, the piston including one or more passages that allow gas from the canister to pass through the piston into the second chamber around the plunger.
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/24 - Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
12.
DRIVE MODULES FOR INJECTORS, AND SYSTEMS AND METHODS FOR USING SUCH DRIVE MODULES
An injection device for delivering an agent into a patient’s body including a drive module and an injector module. The drive module includes a canister and puncture mechanism in a first chamber, a plunger in a second chamber communicating with the first chamber, and an actuator that moves the puncture mechanism to cause a puncture pin thereon to penetrate a septum of the canister and cause the gas within the canister to flow through the first chamber into the second chamber. The plunger includes a proximal end including a piston and a distal end and is configured such that gas entering the second chamber causes the plunger to move from an initial position to an extended position for delivering one or more agents from the injector module, the piston including one or more passages that allow gas from the canister to pass through the piston into the second chamber around the plunger.
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/315 - PistonsPiston-rodsGuiding, blocking or restricting the movement of the rodAppliances on the rod for facilitating dosing
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
13.
DRIVE MODULES FOR INJECTORS, AND SYSTEMS AND METHODS FOR USING SUCH DRIVE MODULES
An injection device for delivering an agent into a patient's body including a drive module and an injector module. The drive module includes a canister and puncture mechanism in a first chamber, a plunger in a second chamber communicating with the first chamber, and an actuator that moves the puncture mechanism to cause a puncture pin thereon to penetrate a septum of the canister and cause the gas within the canister to flow through the first chamber into the second chamber. The plunger includes a proximal end including a piston and a distal end and is configured such that gas entering the second chamber causes the plunger to move from an initial position to an extended position for delivering one or more agents from the injector module, the piston including one or more passages that allow gas from the canister to pass through the piston into the second chamber around the plunger.
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/24 - Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
Devices and methods are provided for delivering gas. In one example, the device includes a syringe body including a proximal end, a distal end including an outlet and a gas chamber communicating with the outlet, and a plunger carrying a piston slidably received within the syringe body. A canister containing a gas is provided within the plunger adjacent a passage through the piston communicating with the gas chamber. A drive actuator is movable to cause an opener pin to open a septum of the canister and release the gas, whereupon the gas travels through the passage into the gas chamber, thereby displacing the piston proximally to fill the gas chamber. Once activated, the plunger may be advanced to deliver the gas within the gas chamber through the outlet into a patient's body, e.g., into an eye via a cannula connected to the outlet.
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
A61M 5/00 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests
A61M 5/315 - PistonsPiston-rodsGuiding, blocking or restricting the movement of the rodAppliances on the rod for facilitating dosing
Devices and methods are provided for delivering gas. In one example, the device includes a syringe body including a proximal end, a distal end including an outlet and a gas chamber communicating with the outlet, and a plunger carrying a piston slidably received within the syringe body. A canister containing a gas is provided within the plunger adjacent a passage through the piston communicating with the gas chamber. A drive actuator is movable to cause an opener pin to open a septum of the canister and release the gas, whereupon the gas travels through the passage into the gas chamber, thereby displacing the piston proximally to fill the gas chamber. Once activated, the plunger may be advanced to deliver the gas within the gas chamber through the outlet into a patient's body, e.g., into an eye via a cannula connected to the outlet.
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/315 - PistonsPiston-rodsGuiding, blocking or restricting the movement of the rodAppliances on the rod for facilitating dosing
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
A61M 5/00 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests
16.
EXTERNALLY POWERED SYRINGE DRIVERS AND SYSTEMS AND METHODS FOR USING THEM
Syringe drivers and injector devices are provided. The driver includes a housing including a port communicating with a gas chamber therein and connectable to an external air source, and a cavity that receives a syringe containing an agent. A drive piston within the housing includes a first end disposed adjacent the gas chamber and a second end including a plunger connectable to the syringe. A damping mechanism is provided within that housing that is coupled to the drive piston that includes a damper piston within a damping fluid chamber such that, when the drive piston is advanced by gas delivered into the gas chamber from the external source to deliver the agent from the syringe, damping fluid within the damping fluid chamber flows through an orifice or valve from a first region to the second region, thereby limiting movement of the drive piston.
Syringe drivers and injector devices are provided. The driver includes a housing including a port communicating with a gas chamber therein and connectable to an external air source, and a cavity that receives a syringe containing an agent. A drive piston within the housing includes a first end disposed adjacent the gas chamber and a second end including a plunger connectable to the syringe. A damping mechanism is provided within that housing that is coupled to the drive piston that includes a damper piston within a damping fluid chamber such that, when the drive piston is advanced by gas delivered into the gas chamber from the external source to deliver the agent from the syringe, damping fluid within the damping fluid chamber flows through an orifice or valve from a first region to the second region, thereby limiting movement of the drive piston.
Syringe drivers and injector devices are provided. The driver includes a housing including a port communicating with a gas chamber therein and connectable to an external air source, and a cavity that receives a syringe containing an agent. A drive piston within the housing includes a first end disposed adjacent the gas chamber and a second end including a plunger connectable to the syringe. A damping mechanism is provided within that housing that is coupled to the drive piston that includes a damper piston within a damping fluid chamber such that, when the drive piston is advanced by gas delivered into the gas chamber from the external source to deliver the agent from the syringe, damping fluid within the damping fluid chamber flows through an orifice or valve from a first region to the second region, thereby limiting movement of the drive piston.
Injector devices and methods for using them to deliver medicament into a patient's body, e.g., sub-retinally within an eye, are provided. The injector includes an injector cannula having a soft injector tip. A retractable tip protector tube is slidably disposed on the flow cannula between an extended position in which the tip protector tube covers the entire injector tip, and a retracted position in which the tip protector tube is retracted proximally thereby exposing at least part of the injector tip. Accordingly, the tip protector tube protects the injector tip from being damaged while advancing the injector tip to a target injection site.
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
A61M 5/34 - Constructions for connecting the needle
Injector devices and methods for using them to deliver medicament into a patient's body, e.g., sub-retinally within an eye, are provided. The injector includes an injector cannula having a soft injector tip. A retractable tip protector tube is slidably disposed on the flow cannula between an extended position in which the tip protector tube covers the entire injector tip, and a retracted position in which the tip protector tube is retracted proximally thereby exposing at least part of the injector tip. Accordingly, the tip protector tube protects the injector tip from being damaged while advancing the injector tip to a target injection site.
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
A61M 5/315 - PistonsPiston-rodsGuiding, blocking or restricting the movement of the rodAppliances on the rod for facilitating dosing
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
21.
MICRO-VOLUME INJECTORS WITH DOSE GUIDANCE AND METHODS FOR USE
Injector devices and methods for using them to deliver medicament into a patient's body, e.g., sub-retinally within an eye, are provided. The injector includes a cartridge including a piston slidably disposed within an interior for delivering medicament within the interior through an outlet, and a driver including a plunger coupled to the piston, a source of pressurized fluid, and an actuator member for opening a flow path at least partially between the source and the plunger to advance the plunger and piston to deliver medicament from the interior. One or more sensors are operatively coupled to the plunger to measure displacement of the plunger, a processor is coupled to the sensor(s) for analyzing sensor signals to measure volume of medicament delivered from the interior, and an output device, e.g., one or more LEDs or speakers, provide outputs related to the volume of medicament delivered.
A61M 5/315 - PistonsPiston-rodsGuiding, blocking or restricting the movement of the rodAppliances on the rod for facilitating dosing
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
Injector devices and methods for using them to deliver medicament into a patient's body, e.g., sub-retinally within an eye, are provided. The injector includes a cartridge including a piston slidably disposed within an interior for delivering medicament within the interior through an outlet, and a driver including a plunger coupled to the piston, a source of pressurized fluid, and an actuator member for opening a flow path at least partially between the source and the plunger to advance the plunger and piston to deliver medicament from the interior. One or more sensors are operatively coupled to the plunger to measure displacement of the plunger, a processor is coupled to the sensor(s) for analyzing sensor signals to measure volume of medicament delivered from the interior, and an output device, e.g., one or more LEDs or speakers, provide outputs related to the volume of medicament delivered.
A61M 5/315 - PistonsPiston-rodsGuiding, blocking or restricting the movement of the rodAppliances on the rod for facilitating dosing
A61M 5/24 - Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
A61M 5/28 - Syringe ampoules or cartridges, i.e. ampoules or cartridges provided with a needle
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
Devices and methods are provided for delivering fluid into a patient's body. In an exemplary embodiment, the device may include a syringe cartridge and a syringe driver that may be coupled to the cartridge. The cartridge may include a housing including a proximal end, a distal end, and defining an interior, the cartridge further including a piston slidably disposed within the interior for delivering fluid within the interior through a port in the distal end. The driver may include a plunger for advancing the piston within the interior of the housing, a source of pressurized fluid, a valve, and an actuator member coupled to the valve for selectively opening a flow path from the source to the plunger to control flow of the pressurized fluid to advance the plunger to deliver fluid from the interior of the housing at a desired rate.
A61M 5/145 - Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. by means of pistons
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/24 - Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
A61M 5/48 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests having means for varying, regulating, indicating or limiting injection pressure
24.
Injection devices and methods for making and using them
Devices and methods are provided for delivering an agent into a patient's body using an injection device that includes a drive module and an injector module coupled to the drive module. The drive module includes a canister and puncture mechanism in a first chamber, a plunger in a second chamber communicating with the first chamber, and an actuator that moves the puncture mechanism to cause a puncture pin thereon to penetrate a septum of the canister and cause the gas within the canister to flow through the first chamber around the canister, and into the second chamber. The injector module includes a piston slidably disposed within an agent chamber and coupled to the distal end of the plunger such that, when the plunger moves from a retracted position to an extended position, the piston is advanced within the agent chamber to deliver an agent therein into a patient's body.
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
Gas-powered fluid injection systems and methods are disclosed, e.g., for delivering fluids into a patient's body. An injection device comprises a driver housing which forms and/or encloses a gas pressure source, an actuation piston driven by the gas pressure source and a hydraulic fluid pressurized by movement of the actuation piston. The hydraulic fluid flows through an adjustable valve into a plunger lumen which pushes a plunger of a fluid dispensing device, such as a syringe, to dispense an injection fluid, such as a medicament. The injection device has a movable plunger sleeve which receives the plunger of the fluid dispensing device. The plunger sleeve is moved during the activation and de-activation of the injection device such that it relieves residual pressure in the fluid dispensing device thereby preventing the fluid dispensing device from continuing to dispense injection fluid after the injection device has been de-actuated.
A61M 37/00 - Other apparatus for introducing media into the bodyPercutany, i.e. introducing medicines into the body by diffusion through the skin
A61M 5/155 - Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. by means of pistons pressurised by gas
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/48 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests having means for varying, regulating, indicating or limiting injection pressure
A61M 5/315 - PistonsPiston-rodsGuiding, blocking or restricting the movement of the rodAppliances on the rod for facilitating dosing
A61M 5/24 - Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
A61M 5/14 - Infusion devices, e.g. infusing by gravityBlood infusionAccessories therefor
26.
Injection devices and methods for making and using them
Devices and methods are provided for delivering an agent into a patient's body using an injection device that includes a drive module and an injector module coupled to the drive module. The drive module includes a canister and puncture mechanism in a first chamber, a plunger in a second chamber communicating with the first chamber, and an actuator that moves the puncture mechanism to cause a puncture pin thereon to penetrate a septum of the canister and cause the gas within the canister to flow through the first chamber around the canister, and into the second chamber. The injector module includes a piston slidably disposed within an agent chamber and coupled to the distal end of the plunger such that, when the plunger moves from a retracted position to an extended position, the piston is advanced within the agent chamber to deliver an agent therein into a patient's body.
A61M 31/00 - Devices for introducing or retaining media, e.g. remedies, in cavities of the body
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/24 - Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
Gas-powered fluid injection systems and methods are disclosed, e.g., for delivering fluids into a patient's body. An injection device comprises a driver housing which forms and/or encloses a gas pressure source, an actuation piston driven by the gas pressure source and a hydraulic fluid pressurized by movement of the actuation piston. The hydraulic fluid flows through an adjustable valve into a plunger lumen which pushes a plunger of a fluid dispensing device, such as a syringe, to dispense an injection fluid, such as a medicament. The injection device has a movable plunger sleeve which receives the plunger of the fluid dispensing device. The plunger sleeve is moved during the activation and de-activation of the injection device such that it relieves residual pressure in the fluid dispensing device thereby preventing the fluid dispensing device from continuing to dispense injection fluid after the injection device has been de-actuated.
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/48 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests having means for varying, regulating, indicating or limiting injection pressure
A61M 5/24 - Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
28.
INJECTION DEVICES AND METHODS FOR MAKING AND USING THEM
Devices and methods are provided for delivering an agent into a patient's body using an injection device that includes a drive module (10) and an injector module coupled to the drive module. The drive module (10) includes a canister (40) and puncture mechanism (30) in a first chamber, a plunger in a second chamber communicating with the first chamber, and an actuator that moves the puncture mechanism to cause a puncture pin (34) thereon to penetrate a septum of the canister and cause the gas within the canister to flow through the first chamber around the canister, and into the second chamber. The injector module (60) includes a piston (70) slidably disposed within an agent chamber and coupled to the distal end of the plunger such that, when the plunger moves from a retracted position to an extended position, the piston is advanced within the agent chamber to deliver an agent therein into a patient's body.
Devices and methods are provided for delivering fluid into a patient's body. In an exemplary embodiment, the device may include a syringe cartridge and a syringe driver that may be coupled to the cartridge. The cartridge may include a housing including a proximal end, a distal end, and defining an interior, the cartridge further including a piston slidably disposed within the interior for delivering fluid within the interior through a port in the distal end. The driver may include a plunger for advancing the piston within the interior of the housing, a source of pressurized fluid, a valve, and an actuator member coupled to the valve for selectively opening a flow path from the source to the plunger to control flow of the pressurized fluid to advance the plunger to deliver fluid from the interior of the housing at a desired rate.
Devices and methods are provided for delivering fluid into a patient's body. In an exemplary embodiment, the device may include a syringe cartridge and a syringe driver that may be coupled to the cartridge. The cartridge may include a housing including a proximal end, a distal end, and defining an interior, the cartridge further including a piston slidably disposed within the interior for delivering fluid within the interior through a port in the distal end. The driver may include a plunger for advancing the piston within the interior of the housing, a source of pressurized fluid, a valve, and an actuator member coupled to the valve for selectively opening a flow path from the source to the plunger to control flow of the pressurized fluid to advance the plunger to deliver fluid from the interior of the housing at a desired rate.
A61M 5/14 - Infusion devices, e.g. infusing by gravityBlood infusionAccessories therefor
A61M 5/145 - Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. by means of pistons
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/24 - Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic
A61M 5/48 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests having means for varying, regulating, indicating or limiting injection pressure
A self-contained apparatus and corresponding methods are provided for delivering viscous fluids in a controlled manner, such as delivering a viscous fluid in a surgical setting. The self-contained apparatus can include a motion following pressure regulator that allows for linear control of a regulated pressure. The regulated pressure can be used for dispensing a viscous fluid from a syringe that is coupled to the self-contained apparatus. The pressure regulator regulates a pressure derived from a pressurized fluid reservoir located at least partially within a housing of the apparatus. This allows the viscous fluid to be delivered using pressure to provide a driving force greater than a force easily delivered manually, while still allowing a surgeon to retain fine control over the rate of viscous fluid delivery.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A61M 5/48 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests having means for varying, regulating, indicating or limiting injection pressure
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
32.
GAS SYRINGE FILLING DEVICE AND METHODS FOR MAKING AND USING THEM
Systems and methods are provided for filling syringes, e.g., for use during pneumatic retinopexy or other medical procedures. In one embodiment, the system includes a housing carrying a gas canister including an outlet communicating with a fluid path extending from the outlet to a syringe cavity. A syringe includes a barrel receivable in the syringe cavity such that a port of the barrel communicates with the fluid path. An actuator is provided on the housing for selectively opening the outlet of the gas canister to deliver gas therein along the fluid path into the interior of the barrel, thereby causing the plunger to move from a distal position to a proximal position.
A gas mixture apparatus includes a measurement control system, an activation system, a pressurized chamber with one or more gases, and a mixing chamber. The apparatus can also include additional pressure regulation control systems. The gas mixture apparatus can be used to introduce and automatically perform the steps to achieve a desired concentration of the one or more gases contained in the pressurized chamber. The gas mixture apparatus can include the pressurized chamber within the apparatus itself such that no external devices are necessary for introducing the one or more gases into the mixing chamber.
A self-contained apparatus and corresponding methods are provided for delivering viscous fluids in a controlled manner, such as delivering a viscous fluid in a surgical setting. The self-contained apparatus can include a motion following pressure regulator that allows for linear control of a regulated pressure. The regulated pressure can be used for dispensing a viscous fluid from a syringe that is coupled to the self-contained apparatus. The pressure regulator regulates a pressure derived from a pressurized fluid reservoir located at least partially within a housing of the apparatus. This allows the viscous fluid to be delivered using pressure to provide a driving force greater than a force easily delivered manually, while still allowing a surgeon to retain fine control over the rate of viscous fluid delivery.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A61M 5/48 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests having means for varying, regulating, indicating or limiting injection pressure
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
A self-contained apparatus and corresponding methods are provided for delivering viscous fluids in a controlled manner, such as delivering a viscous fluid in a surgical setting. The self-contained apparatus can include a motion following pressure regulator (150) that allows for linear control of a regulated pressure. The regulated pressure can be used for dispensing a viscous fluid from a syringe that is coupled to the self-contained apparatus. The pressure regulator regulates a pressure derived from a pressurized fluid reservoir (120) located at least partially within a housing (110) of the apparatus. This allows the viscous fluid to be delivered using pressure to provide a driving force greater than a force easily delivered manually, while still allowing a surgeon to retain fine control over the rate of viscous fluid delivery.
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
patents
