1379 results about "EXTENSION TUBES" patented technology

An apparatus for delivering humidified gases has a connection manifold adapted to connect with inlet and outlet ports of a slide on water chamber in a single slide on motion. Connection of the gases inlet and gases outlet ports as well as any additional electrical and / or pneumatic connections are all made in the same slide on motion. The water chamber may include inwardly extending elongate extension tubes with one of the extension tubes having an air bleed aperture to aid filling of the chamber.

A multi-lumen catheter and method for inserting same in a patient is disclosed. The catheter includes an elongated, central, multi-lumen tube portion having a proximal end and a distal end. The central tube portion has a substantially cylindrical outer shape and is internally segmented into a plurality of lumens. A distal branch portion includes a plurality of single-lumen distal extension tubes. A proximal branch portion includes a plurality of single-lumen proximal extension tubes. Each proximal extension tube has a distal first end and a proximal second end. The distal first end of each proximal extension tube is connected to the proximal end of the central tube portion such that the single lumen of each distal extension tube is in fluid communication with one of the plurality of lumens of the central tube portion. Each lumen of the central tube portion and the lumens of the distal and proximal extension tubes in fluid communication therewith define a flow path through the catheter. Selectively attachable hub connectors are provided for selective attachment to the distal extension tubes and connection of the catheter to a fluid exchange device.

A multiple catheter assembly is provided. The assembly includes a first catheter constructed from a first material and having a first proximal end region, a first distal end region terminating in a first distal tip, and an outer surface defining at least a first lumen extending longitudinally therethrough between a first distal and a first proximal opening. The first proximal end region is integrally connected to an extension tube constructed from a second material. A second catheter is constructed from the first material and having a second proximal end region, a second distal end region terminating in a second distal tip, and a second outer surface defining at least a second lumen extending longitudinally therethrough between a second distal and a second proximal opening. The second proximal end region is integrally connected to an extension tube constructed from the second material. The first lumen and the second lumens are independent from each other for facilitating simultaneous flow in opposite directions. The outer surfaces of the first and second catheters are releasably joined for allowing the first and second distal tips to be at least partially longitudinally split from each other.

The invention discloses a fracturing conveying ground manifold system. The fracturing conveying ground manifold system comprises a fracturing tree, a high-low pressure manifold device, a high-pressureflange conveying pipeline, a ground fracturing control manifold device, an offset flange mechanism and a corner pipeline, wherein the high-low pressure manifold device is linearly connected with theground fracturing control manifold device through the high-pressure flange conveying pipeline; the ground fracturing control manifold device is connected with the fracturing tree through the offset flange mechanism and the corner pipeline; and the offset flange mechanism and the corner pipeline can realize adjustment of different heights and directions between the ground fracturing control manifold device and the fracturing tree. The fracturing conveying ground manifold system has the advantages that the whole manifold system is large in displacement, simple in structure, simple in layout, fewin pipelines, few in joints, linear in conveying, relatively low in kinetic energy loss and capable of being separated from the ground, effectively prolonging the service life of the manifold, realizing multi-wellhead zipper type operation and improving the operation efficiency of a fracturing well factory.

A heavy-duty adjustable length butt stock assembly for a firearm such as an AR15 rifle or any other firearm that is made to accept an AR15 butt stock. The stock is designed to be stronger than any existing production AR15 butt stock. The butt stock has three major components, the butt, the receiver extension tube and the clamping gusset The front end of the butt stock has a primary bore hole that extends inwardly from its front end to the rear end of the butt stock. The receiver extension tube is telescopically received in the primary bore hole. An adjustment push button lock extends inwardly from one of the lateral sides of the butt stock and it actuates locking plunger pin that can mate with various longitudinally spaced transversely extending grooves on the bottom surface of the receiver extension tube. Various sling mount structures can be formed on the butt stock or on a clamping gusset that is removably inserted over the receiver extension tube adjacent its front end.

The present invention is a modular gunstock utilizing a two-piece mounting structure and a stock module. The structure comprises a weapon attachment, in the case of an AR15 / M16 rifle a receiver extension tube, and a sleeve slidable over said attachment and containing mounting structure for the stock module. The disclosed stock module is adjustable for length and features a length pre-set system, a latch with independent dual-pawls and an integrated impact buffer, modular tailpiece, and storage. The sleeve also features a position selectable fixed cheek plate.

The present invention is a modular gunstock utilizing a two-piece mounting structure and a stock module. The structure comprises a weapon attachment, in the case of an AR15 / M16 rifle a receiver extension tube, and a sleeve slidable over said attachment and containing mounting structure for the stock module. The disclosed stock module is adjustable for length and features a length pre-set system, a latch with independent dual-pawls and an integrated impact buffer, modular tailpiece, and storage. The sleeve also features a position selectable fixed cheek plate.

An apparatus for delivering humidified gases has a connection manifold (8) adapted to connect with inlet (5) and outlet (6) ports of a slide-on water chamber (2) in a single slide on motion. Connection of the gases inlet (5) and gases outlet (6) ports as well as any additional electrical and / or pneumatic connections are all made in the same slide on motion. The water chamber (2) may include inwardly extending elongate extension tubes (30,31) and at least one of the extension tubes may also have an air bleed aperture (33) to aid filling of the chamber (2).

A neonatal intravascular device having an extension tube to relief stress between a catheter adapter and a luer adapter of the catheter assembly.

A quick-acting telescopic tube has a stationary tube, a detent lining, an extension tube, a lock activating assembly, a bottom plug, an activating rod, a spring and a ball. The detent lining is mounted securely in the stationary tube and has multiple detents. The extension tube is mounted movably in the detent lining and has a top and a bottom. The lock activating assembly is mounted around the top of the extension tube and has a lever extending into the extension tube. The bottom plug is mounted securely in the bottom of the extension tube and has a transverse through hole. The activating rod is mounted in the extension tube, connects to the lever and has a locking piston with an annular recess. The ball is mounted in the transverse through hole and selectively in either one of the detents or the annular recess.

A hydraulic recoil buffer assembly for a firearm having a receiver and a fixed or collapsible stock assembly including an end cylinder adapted to be secured to the pistol grip or receiver of the firearm and slidably translatable with respect to the extension tube, and a hydraulic shock absorption assembly operative to produce a hydraulic resistance to a rearward movement of the end cylinder during recoil of the firearm. The hydraulic shock absorption assembly has an orifice restricted fluid flow passage and a piston head that compresses a return spring as the end cylinder moves rearward against a recoil coil spring. The recoil buffer assembly stores a portion of the recoil energy through compression of the recoil spring and the return spring, and dissipates a portion of the recoil energy through the resistance provided by fluid flow through the orifice restricted flow passage.

A cam coupling rod reducer and method of operation comprises an inner tube comprising a first end having a hole and a second end having a plurality of prongs extending therefrom. The rod reducer further includes a lever cam connected to the first end, wherein the lever cam comprises a base and a pair of semicircular arms extending from the base, wherein each of the arms comprise a hole configured to align with the hole of the first end of the inner tube. The rod reducer also includes an outer extension tube connected to the inner tube, wherein the outer extension tube comprises positional markings on the body of the outer extension tube; a top end having a concave opening; and a bottom end comprising an opening configured to permit the prongs of the inner tube to extend therethrough; and a pair of pegs extending from the bottom end.

Instruments and methods for inserting a spinal fixation rod include various components for inserting a rod with visual guidance. One kit includes a plurality of hollow elongated extension tubes and rod templates. The tube connectors connect the extension tubes in series. Another kit includes a rod guidance instrument having a sleeve. A guide member is attachable to the midsection of the sleeve, and a spinal fixation rod is attachable to the distal end of the sleeve. A method for inserting a spinal fixation rod into a plurality of rod receiving implants includes the steps of contouring a fixation rod to conform to a predetermined shape, contouring a guide member to match the shape of the contoured rod, and guiding the fixation rod into a rod receiving implant by maneuvering the guide member through a guide slot representing the location of the rod receiving implant.

A collapsible buttstock which is adapted primarily for use with military and tactical carbines, is supported by an extension tube which is connectable to the receiver of a carbine on which the collapsible buttstock is to be mounted. A storage enclosure is formed in the body of the buttstock and is sized and dimensioned so that it can receive a clip or magazine, typically able to carry 20 rounds, that is usable with the carbine on which the collapsible buttstock is mounted. The enclosure is provided with an openable cover that is hingably attached to the buttstock body. An easily operable cover latch assembly is usable to secure the cover in a closed position while facilitating expeditious opening of the cover to afford access to the spare magazine storage enclosure.

A catheter a part which is inserted into and indwelled in a blood vessel by the Seldinger method and a sheath for covering the catheter are included. The catheter is constituted of a double lumen portion in which a first lumen and a second lumen are integrally formed in parallel with each other, a first branch tube and a second branch tube extended to the one side of the double lumen portion and an extension tube connecting portion provided to the other side of the double lumen portion. The inner cavity of the first branch tube communicates with the first lumen and the inner cavity of the second branch tube communicates with the second lumen. The distal end of the first branch tube is bulged in the vicinity thereof so as to slidably contact with the inside of the distal end of the sheath.

An apparatus for adapting a blower system to the dispersing of liquid material is partially housed within an extension tube of a portable blower and includes a pressurizing tub with an inlet for accepting airflow discharged by the blower. The pressurizing tube discharges into a liquid container thus increasing pressure within the container. An extraction tube exits the container and meets a Venturi tube that also accepts airflow discharge by the blower. A vacuum is created in the extraction tube through first and second apertures that allow fluid communication between the Venturi tube and the extraction tube. The vacuum created in the extraction tube extracts liquid from the liquid container and the liquid is drawn out of the extraction tube through the Venturi hole into the Venturi tube mixing with air flowing there through and discharging into airflow by-passing the spray adapter apparatus.

A cervical drill guide apparatus includes a handle assembly having a housing and an extension member attached to one end of the housing. The handle assembly includes a fixed handle and a movable handle. A distal end of the extension member includes a plurality of fingers that are radially expandable or contractible in response to relative movement between an actuation shaft and the extension tube. The fingers are adapted for releasably engaging an opening in a plate. Additionally, a guide member is releasably attached to the distal end portion of the cervical drill guide apparatus. The guide member includes at least one opening therethrough for receiving a drill or other surgical instrumentation. The extension member may be rotatable in relation to the housing.

Information-bearing articles (10,50,100,100′,150, . . . 850) for securing to flexible tubing (38) such as catheters and their extension tubes, to provide important information about the tubing (38) such as flow rating or contraindications on types of cleaning fluid not to be used therewith. The devices are provided with large outwardly facing indicia-bearing surfaces (30,32;70,72;120,122; . . . 834) and may be clipped directly to the tubing (38) at a selected location therealong, or be clipped directly to a clamp member (40,330) that is disposed along and around the tubing for clamping the tubing (38) when desired to occlude fluid flow therethrough. Those devices (10,100,100′,550, . . . 750) clippable to the tubing may have a C-shaped channel (18,20,58,108,554,604) therealong that may be flexed open to be placed about the tubing, which may be temporarily compressed as well to enter the channel, or the devices may be rings (800,850) that clip closed about the tubing (38). Other devices (200,250, . . . 500) are adapted to be clipped to the clamp (40,330) by latch projections (208,210;258,260; . . . 508,510). Still others (50,150) may be clipped to the tubing (38) but be adapted to be placed partially around an end or a side of the clamp (40,330).

A directional support structure for use with solar panels, flat satellite antennas, and the like items that are directed toward a point in space. The support structure includes a mounting plate with an extension tube extending outwardly therefrom, pivotally secured to a mounting bracket permitting rotational azimuth alignment of the mounting plate. At least one locking turnbuckle is attached between the extension tube and the mounting bracket to provide locking and vertical adjustable alignment of the mounting plate. The base member includes an attached first flange positioned along an upper end of the base member, an attached flaring positioned on the lower end of the mounting bracket, and an unattached second flange positioned over the flaring, securable to the first flange with fasteners.

A method is provided for controlling the fluid flow rate in an extension tube of an introducer needle assembly for use as confirmation flashback. The introducer needle assembly has a catheter attached to a catheter hub with a side port, an extension tube attached to the side port on the catheter hub, and an introducer needle with a notch adapted to be inserted into a bore in the catheter. A lumber extends through the needle and is in fluid communication with the notch. The needle has an outer diameter smaller than the diameter of the bore such that an annular space is defined between the catheter and the needle. The fluid, typically blood, is at a pressure and has a viscosity when the needle accesses it. A preferred minimum fluid velocity of the fluid through the extension tube is selected (preferably at least 1 inch per minute though the extension tube in certain applications). The notch and the annular space are sized based, at least in part, on the viscosity of the fluid and the pressure of the fluid to achieve the preferred flow rate though the extension tube.

A vertebra bone cement introduction system includes a main frame comprised of lateral handle and vertical insertion tube; a pouring frame comprised of lateral handle and vertical extension tube; an external injection device to inject cement into extension tube; a taper being meshed to extension tube; a polygonal hole disposed to taper and a recession in the mid of taper connected to a silicon gel bag containing cement; a locking rod penetrating the extension tube; and the lateral rod of the pouring frame being turned in reverse to disengage taper from extension tube while leaving taper and bag in a hole drilled on the bone.

A catheter and introducer needle assembly is provided including a catheter adapter at its proximal end. The catheter adapter includes a side port in fluid communication with the catheter. A septum is located in the proximal end of the catheter adapter proximal of the side port. The introducer needle is connected at its proximal end to a needle hub and includes at least one notch formed therein in communication with the introducer needle lumen. The notch is formed in the needle such that blood can flow into the open distal end of the needle, through the lumen in the needle and through the notch into the catheter lumen (specifically, the annular space between the outside of the introducer needle and the inside of the catheter and catheter adapter). Thereafter, the blood can flow through the annular space and then through the side port and extension tube that extends from the catheter adapter. Similarly, liquids delivered to the side port flow to the annular space between the needle and the catheter, through the notch into the lumen within the needle, and out of the tip of the needle. Liquid anesthesia thus can be delivered to the patient's tissue surrounding the needle tip be delivering the liquid through the side port. An electrical connection may be provided to the needle via the needle hub to. carry an electrical charge to the patient's tissue. After withdrawing the needle from the catheter, the catheter remains in place, with the tip of the catheter disposed in the tissue being anesthetized. The clinician may provide additional anesthesia via the catheter through the extension tube set.

A solar distillation apparatus utilizing a substantially vertical reactor assembly is disclosed. The reactor includes a tubular outer shell, a base, a cap, and a central tension member. The annular space between the outer tube and the central tension member forms the reactor chamber. Seawater or other feed liquid enters the reactor chamber through the base plate. Reflected or direct solar energy heats the feed liquid, generating low pressure vapor. The vapor exits the reactor through the cap structure or the base. The concentrate left behind settles by gravity to the bottom region of the reactor's liquid column. Extension tubes on the feed openings allow feed liquid to enter the liquid column above the concentrate layer and avoid excessive mixing of the feed liquid and the concentrate. The concentrate exits the reactor through one or more openings in the base.

A cryosurgical device and system is provided comprising a pressurized container, a metered valve that regulates the retrieval of a coolant solution stored in the pressurized container and regulates the volume of coolant solution dispensed with each actuation of the device, an actuator that engages the metered valve when engaged, and directs the coolant solution to an extension tube, which directs the coolant solution away from the pressurized container, and an applicator head configuring an open-ended enclosure attached to a distal end of the extension tube.

A cam coupling rod reducer and method of operation comprises an inner tube comprising a first end having a hole and a second end having a plurality of prongs extending therefrom. The rod reducer further includes a lever cam connected to the first end, wherein the lever cam comprises a base and a pair of semicircular arms extending from the base, wherein each of the arms comprise a hole configured to align with the hole of the first end of the inner tube. The rod reducer also includes an outer extension tube connected to the inner tube, wherein the outer extension tube comprises positional markings on the body of the outer extension tube; a top end having a concave opening; and a bottom end comprising an opening configured to permit the prongs of the inner tube to extend therethrough; and a pair of pegs extending from the bottom end.

A vacuum cleaner is disclosed, which includes a main body formed of a fan motor generating a driving force therein, a fan, and a cyclone dust collector, a suction head connected to the main body and sucking in all kinds of impurity existing on a surface that is to be cleaned, a suction hose connected to the front portion of the main body and an extension tube connected to the suction head both installed between the main body and the suction head, a dust collecting chamber detachably fixed on a rear side of the main body and having a handle on an outer rear surface thereof, a lower holding part of the handle on the dust collecting chamber projecting beyond the lower circumference of the wheels and coming into contact with the surface of a lower step, when the front portion of the main body of the vacuum cleaner is fastened to the edge of an upper step, and a roller caster formed on both sides of the lower front portion of the main body allowing back-and-forth motions and rotations on a flat surface and fastening the vacuum cleaner to the edge of the upper steps, thereby preventing the main body of the vacuum cleaner from slipping down the stairway.

An anchor stent assembly to be used with a valve component includes a generally tubular frame having a first end and a second end, the frame defining a central passage and a central axis. A secondary passage is defined between n inner surface of the frame and an outer surface of an inner rib disposed closer to the central axis than the frame. An extension tube is disposed through the secondary passage. The extension tube includes an extension tube lumen having a first opening at a first end of the extension tube and a second opening at a second end of the extension tube.

Power injection catheters for high flow rate delivery of fluids are disclosed. In one embodiment, a catheter may include a body defining one lumen and a plurality of extension tubes each comprising a lumen in fluid communication with the one lumen of the catheter body. Further, an extension tube may be configured for performing power injection and an extension tube may include a proximal valve. In another embodiment, a catheter may comprise a plurality of lumens and extension tubes, each of the extension tubes comprising a lumen in fluid communication with one lumen of the catheter body, respectively. At least one extension tube may be configured for performing power injection and at least one extension tube may include a proximal valve. Such catheters may include a pressure relief mechanism for preventing overpressurizing of the catheter. A method of injecting a fluid into a patient's body is disclosed.