37 results about "Guide tube" patented technology

The instant invention relates generally to catheters and to introducer catheters used to help deliver catheters or other medical devices to locations within the human body. In particular, the instant invention relates to large diameter catheters and introducer catheters having a torque transfer layer that includes at least two flat wires braided into a wire mesh. The flat wires have a width of at least about 0.007 inches and a depth of at least about 0.003 inches. The lumen diameter of the catheter is at least about 6 French. The torque transfer layer provides increased strength, flexibility, and kink resistance.

A dirt collecting system for a vacuum cleaner includes a dirt cup formed from a cylindrical sidewall having a disc shaped member separating the dirt cup into an upper portion and a lower portion. The dirty airstream flows past the disc shaped member from the upper portion to the lower portion through a small gap between the outer periphery of the disc shaped member and the sidewall of the dirt cup. The disc shaped member is supported on a centrally located conduit which has apertured walls located both above and below the disc shaped member. The apertured walls allows the airstream to flow into the conduit for further filtering or exiting the dirt cup. The apertured wall located above the disc shaped member improves sustained performance by enabling the airstream to continue to flow through the dirt cup as the lower portion of the dirt cup fills with large dirt particles and the apertured wall located beneath the disc shaped member becomes increasingly restricted. In the various embodiments of the invention, the airstream is directed through the conduit to a fine particle filter located in a compartment at the bottom of the dirt cup, at the top of the dirt cup or into filter sock located at the upper end of the dirt cup. Alternately, the fine particle filter may be located in a separate container located above or below the dirt container.

The invention is a dilation catheter which comprises an elongated catheter shaft, a guide wire tube, and an angioplasty balloon. The distal end of the balloon is attached to the distal portion of the guide wire tube, and the proximal portion of the balloon is attached to the distal portion of the catheter shaft. A stiffening wire is attached to the inner wall of the catheter shaft at a plurality of points along its length. The distal extremity of the guide wire tube is decreased in size relative to the proximal portion of the guide wire tube. A fluid is contained within the guide wire lumen.

The present invention provides a novel construction for a catheter that includes backflow prevention in the form of a check valve, which keeps the flow of drained fluid material from reentering the patient. The catheter construction of the present invention provides a standard single or multiple lumen tube assembly that extends rearwardly from the insertion end of the catheter to the contact end wherein on the discharge lumen a one way check valve is provided. It is an important feature of the present invention that the check valve is provided as close to the terminal end of the contact end as possible without interfering with the necessary accessory attachment that is typically made thereto. Further, an interlock mechanism may be provided at the terminal end of the catheter for connecting accessories in a positive locking manner. The combination of the valve and the interlock mechanism provides a notable safety and performance improvement that has been previously unknown in the prior art.

A gas turbine engine system includes a gas turbine engine using vaporized liquefied gas as fuel. The gas turbine engine is configured to ingest intake air from an intake port and direct exhaust gases to an exhaust port. The gas turbine engine system also includes a heat exchanger with a heat transfer fluid therein. The heat exchanger is configured to create at least a part of the fuel by heating the liquefied gas. The gas turbine engine system also includes an intake air temperature control circuit. The intake air temperature control circuit includes conduits configured to direct the heat transfer fluid to the intake port and the exhaust port. The gas turbine engine system also includes a control system configured to selectively direct the heat transfer fluid to one of the intake port and the exhaust port.

The invention relates to a negative pressure closed drainage device, comprising a porous foam cushion (1), a drainage tube (2) with a side hole, a joint (4), a conduit (11), a drainage container (5) and a negative source (6). The drainage tube (2) is connected with the conduit (11) which is led into the drainage container (5), and the drainage container (5) is connected with the negative pressure source (6). One end of the drainage tube (2) is positioned in the porous foam cushion (1), and the other end of the drainage tube (2) is led out from the upper end of the porous foam cushion (1). The leading-out end of the drainage tube (2) is fixed with an adhesive film (7), and a sealing film (3) is sealed on the adhesive film (7). The invention overcomes the defects that the traditional negative pressure closed drainage device is inconvenient, a better carrier used as a support is not available when the sealing film is sealed, and a drainage device for a wound surface on the body surface is very inconvenient to use when carrying out negative pressure sealing drainage. The negative pressure closed drainage device for the wound surface tissue on the body surface has the advantages of suitability for the drainage of the wound surface on the body surface, suitability for the drainage in a body cavity and more convenient film sticking.

An adjustable infusion catheter includes a flexible tube containing one or more axial lumens that allows fluid to flow from the proximal end of the catheter to the distal end. A syringe or infusion pump is the usual pressure source for fluid at the proximal end. A plurality of small-diameter holes are provided in a fenestrated area near the distal end of the tube to disperse fluid throughout a targeted region within the patient's body. The length of the fenestrated area of the catheter body is adjusted by a slidable sheath which can be positioned along the length of the fenestrated area so that its exposed length substantially matches the targeted region. The ends of the slidable sheath include a seal portion to prevent leakage around the ends of the sheath. Heat shrinkable plastic material can be used to form the sheath and the end seals.

The invention discloses a dioscorea opposita mechanical ridging directional cultivating method capable of preventing tuber deformation. The method comprises the following steps: step 1, selecting a land and preparing: step 2, ridging wide and narrow rows, namely, forming two rows of single large ridges through ridging once by a large tractor; step 3, deeply burying a guide pipe or a spacer, namely, digging a 10cm-wide, 15-20cm-deep and 100cm-long small furrow from the ridge top along the ridge slope according to a plant distance of 20-30cm, padding the semi-circular guide pipe or the plastic spacer in the furrow, covering one layer of fine soil along the furrow to press the guide pipe or the plastic spacer, and then scattering a fertilizer and covering soil; step 4, sowing bulbils or tubers in soil which is about 5cm above the buried guide pipe or plastic spacer, and thickly covering 20-30cm of fine soil; step 5, picking buds, namely, leaving one bud on each plant, and picking off the rest buds in time; step 6, performing field management and harvesting. The labor intensity of dioscorea opposita ridging and harvesting can be obviously reduced, and the tuber deformation rate obtained by cultivation is obviously reduced.

The device controlled by a finger allows the mobile phone record videos around the user. The device includes main parts: 1—mobile phone holding frame, 2—pivot to receive external force to create rotary motion on the pivot, thus, enable the pivot to rotate freely, 3—handle enabling the user to hold the 360° mobile phone rotary device in the palm of the user's hand to create an angle between the grip and the mobile phone, in addition, a 360° mobile phone rotating device may be added: 4—couplings or extensions to extend the handle and pivot holding frame or to increase the length between the handle and the pivot holding frame A and to create the angle between the handle and the mobile phone at will, 5—cable inside the cable conduit to transfer the rotational motion from the handle to the mobile phone holding frame, 6—curved or straight bars tangent to the pivot with reciprocating motion obtained by the external force and held by the gap between the horizontal bars on the shaft retainer.

The invention discloses a method and device for monitoring ash dirt on a convection heating surface of a boiler. The device comprises a sound wave guide tube, a sound wave receiver, a sound wave generator, a signal conditioner, a junction box, an input and output device, a power amplifier and an industrial personal computer. The method comprises the steps of: firstly, sending a sound wave signal by the industrial personal computer, amplifying with the power amplifier and then sending to the sound generator; secondly emitting sound wave by the wave generator, spreading the sound wave to a hearth of the boiler through the sound wave guide tube, receiving a sound wave return signal of the hearth of the boiler by the sound wave receiver, transmitting the sound wave return signal to the industrial personal computer; thirdly, measuring sound wave crossing time by the industrial personal computer, and solving the smoke side temperature of the boiler; and finally, solving an actual heat exchange coefficient and obtaining an ash dirt coefficient. The invention adopts a non-contact measurement manner, and can be applied to environments with high temperature and much dirt and pollution; and the device is simple in operation, and provides a clear and simple visualization interface.

The invention discloses a transnasal laryngeal mask which comprises a cuff, a ventilation catheter, an inflation pipe and an indication saccule, wherein the opening at the front end of the ventilating catheter is of an incline, the cuff is fixed around the front end of the ventilating catheter, the cuff is shaped as a flat spheroid under the inflation state, a diaphragm is arranged in the cuff and is provided with a small hole, one end of the inflation pipe is communicated with the cuff, and the indication saccule is connected to the inflation pipe. The cuff and the ventilation catheter form a ventilation device, the ventilation device is implanted through the inferior nasal meatus of a patient without being implanted into the oral cavity of the patient, thus the problem of difficulties of managing the oral cavity and fixing the position in the prior art is solved, the problem of poor tolerance of the common laryngeal mask under light anaesthesia is solved, and the safety of using the laryngeal mask is improved. The invention can help a patient suffering from epistaxis carry out nasal cavity hemostasis by compression, and solves the problems of nasal cavity hemostasis and incapability of ensuring smooth nasal cavity.

The invention discloses a gate vertical vibration reduction and bottom edge adjustable system. The system comprises a gate, a rubber pocket, an inflatable guide tube, an inflatable pump, a pressure valve, an electromagnetic feedback system and a cell; the cell is arranged on the lower portion of a bottom beam of the gate, and the cell and the bottom beam are fixedly connected through a damping device; the rubber pocket is fixed into the cell through bolts, the width of the cell is smaller than that of the gate, the inflatable pump, the pressure valve and the electromagnetic feedback system arefixed to the upper portion of a gate body, one end of the inflatable guide tube is connected with the inflatable pump, and the other end of the inflatable guide tube penetrates through the bottom beam and the cell to be connected with the rubber pocket. By means of the system, the effects of gate vertical vibration reduction, gate flow state improvement and adjustment of vertical water power applied to the gate bottom edge can be achieved.

A piston assembling apparatus includes a piston holding means including a guide tube portion which contains the piston and guides the piston into the cylinder bore. A guide tube support portion supports the guide tube portion to be displaceable in a radial direction thereof. A moving means moves at least one of the piston holding means and the cylinder block so as to locate them at an insertion preparation position where the guide tube portion and the cylinder bore are coaxial with each other. A pressing means presses the piston contained in the guide tube portion toward the cylinder block to insert the piston into the cylinder bore in a state in which the piston holding means and the cylinder block are located at the insertion preparation position, and the guide tube portion is supported by the guide tube support portion to be displaceable in the radial direction thereof.

The invention discloses a water supply system for an intelligent pipe gallery fire protection device. The water supply system comprises a device body, the device body is composed of a base, a water tank, a water supply pump and a water suction pump, the base is located at the bottom end of the device body, the water tank, the water supply pump and the water suction pump are located on the upper side of the base, the bottom end of the water tank is connected with the upper side of the base in a welded mode, one end of the water supply pump is provided with a water inlet pipe, the upper side ofthe water inlet pipe is provided with a guide pipe, the bottom end of the guide pipe is connected with a water supply pump through a connection flange, the guide pipe is connected with the upper end of the water tank in a penetrating mode, one side of the water supply pump is provided with a PLC, the PLC is connected with the water supply pump through a wire, and the water suction pump is locatedat the end, away from the water supply pump, of the water tank. When the water supply system is in use, the water suction pump is covered with the shell, a drying agent inside a first filler box willdry air inside the shell, it is ensured that dryness of surrounding of the water suction pump is kept, and the water suction pump is protected.

The invention discloses a punching forming clamp. The punching forming clamp comprises a base and a stamping base, a forming base is installed in the middle of the base through a fixing block, guide tubes are arranged on the two sides of the forming base, a stamping rod matched with the forming base is arranged in the middle of the stamping base, guide sleeves matched with the guide tubes are arranged on the stamping base, cutting edges are arranged at the lower end of the stamping base, and edge cavities matched with the cutting edges are formed in the forming base. According to the scheme, as the guide tubes are arranged on the two sides of the forming base, and the guide sleeves matched with the guide tubes are arranged on the stamping base, the guide tubes and the guide sleeves are matched in the machining process and can ensure the stability of the clamp and improve the qualified rate of products; as the cutting edges are arranged at the lower end of the stamping base, and the edge cavities matched with the cutting edges are formed in the forming base, the products formed through machining can be cut, forming and cutting are achieved in one step, the steps in the machining process are reduced, and the production efficiency is improved.

The invention discloses a positive-pressure liquid stopping clamp. The positive-pressure liquid stopping clamp comprises a sliding block and a body. The sliding block is installed on the body, the bottom of the sliding block is connected with a liquid stopping rod, the liquid stopping rod is put into a cavity of the body, an infusion table and a liquid stopping table are arranged at the bottom of the body, the infusion table is connected with the liquid stopping table, a positioning piece is arranged on the top face of the liquid stopping table, and the positioning piece and a fastening piece at the bottom of the liquid stopping rod are embedded. According to the positive-pressure liquid stopping clamp, when infusion is completed, the sliding block on the positive-pressure liquid stopping clamp is pushed to the positioning piece, and the liquid stopping clamp is in the closed state accordingly; in the process that the sliding block is pushed, an extension tube of a remaining needle is gradually compressed, liquid in the extension tube is extruded in the guide tube direction of the remaining needle, positive pressure is generated accordingly, blood is stopped to be backed flow to a remaining guide tube, forming of thrombus in the remaining guide tube is avoided accordingly, nursing services are reduced, the medical quality is improved, and medical cost is saved.

The invention discloses a soil solution collecting device, and relates to a collecting device, which comprises: a depth limiting fixing support frame; a movable pipe arranged on the depth limiting fixing support frame and capable of moving up and down relative to the depth limiting fixing support frame, wherein a limiting notch is formed in the movable pipe; a collecting part comprising a guide pipe, a limiting pipe and a water seepage pipe, wherein the guide pipe and the water seepage pipe are arranged in the movable pipe, the limiting pipe can penetrate out of the limiting notch, a collection channel is formed in the guide pipe, the limiting pipe and the water seepage pipe, and a water inlet is formed in the water seepage pipe; a water storage pipe connected with the water seepage pipe;a water guide pipe, wherein one end of the water guide pipe is located in a water storage part, and the other end penetrates out of the limiting pipe in the collecting channel direction; and a filtering part arranged on a permeation pipe and used for filtering a soil solution passing through the water inlet. The device has the effects of depth limiting, fixing and toppling preventing while sampling can be accurately conducted at the preset depth.

The invention provides a production method and equipment of a heat-resistant daily ceramic product. The equipment comprises a flour mill, a stirring device and a mud blank rolling device, wherein a collecting barrel is arranged on the right side surface of the flour mill; a spiral separator is fixedly connected to the collecting barrel through a positioning rod arranged at the upper end of the outer side surface of the collecting barrel; a discharging port of the spiral separator is connected with the upper end surface of the collecting barrel through a conduit; an air suction pump is arrangedon the right side surface of the collecting barrel; a dust-proof bag is connected to an air outlet of the air suction pump in a sleeved manner; an air inlet of the suction pump is connected with an air outlet of the spiral separator through a conduit, and a conical feed nozzleis arranged on the upper end surface of the stirring device. The production method and the equipment of the heat-resistantdaily ceramic product have the advantages of simple preparation process, low cost, high structural strength and hard glaze, so that the method and the equipment are suitable for microwave ovens and dishwashers; the arrangement of the flour mill can effectively grind raw materials into powder; and the dust-proof bag can effectively prevent dust from flying everywhere.

The invention discloses a double-cross-beam assembly on a lifting table. The assembly comprises two cross beams which are transversely laid side by side; each cross beam comprises a guide pipe and telescopic pipes which are located on the two sides of the guide pipe and are in inserted connection and sliding fit with the guide pipe; at least one screw is laid on a pipe body of the guide pipe in the pipe hole direction of the guide pipe; at least one threaded hole is laid in a pipe body of each telescopic pipe in the pipe hole direction of the telescopic pipe; one end of each screw spirally penetrates through the corresponding threaded hole and then abuts against the guide pipe to limit the sliding position of the guide pipe, and a gap is formed between the other end of each screw and the outer surface of the corresponding telescopic pipe; a cavity for containing a control box and a wire is formed between the two cross beams; a cover plate is arranged below the cavity; and the two endsof the cover plate are clamped in the gaps to cover the control box and the wire. The double-cross-beam assembly on the lifting table is low in cost and convenient to install and adjust.

The invention relates to a workpiece importing device which comprises a frame. A fixed frame is fixed on the frame. A bead feeding clamp comprises a first clamp block and a second clamp block. A pushrod of an auxiliary beam clamping air cylinder is connected to the first clamp block and a push rod of a bead feeding pushing air cylinder is connected to the second clamp block; the first clamp blockand the second clamp block are closed to form a clamp port for clamping a round bead piece; the cylinder of a piece press-into rod air cylinder and a bead feeding guide tube are vertically fixed on the frame; the first clamp block and the second clamp block are closed to form a clamp port which can move back and forth below the exporting end of the bead feeding guide tube and below the push rod of the piece press-into rod air cylinder; the push rod of the piece press-into rod air cylinder and a threading hole of the round bead piece are located in the same central axis; a first through hole where the round bead piece passes through is formed in a top plate; and a second through hole where the round bead piece passes through is formed in a bottom plate. The workpiece importing device provided by the invention automatically feeds workpieces in an operating process of an automatic rubber threading machine, so that the labor intensity of workers is reduced greatly and the production efficiency is increased.

The invention relates to a gas gun with a projectile body filling and exhausting structure. The gas gun comprises an inner gun barrel, an outer gun barrel and a high-pressure gas cabinet, wherein the outer gun barrel is arranged outside the inner gun barrel, and the high-pressure gas cabinet is sealed and formed between the inner gun barrel and the outer gun barrel. One end of the inner gun barrel is provided with an opening, and the other end is sealed through an inner barrel base. One end of the inner barrel base stretches out of the inner gun barrel, an exhausting blind hole parallel with an axis of the inner gun barrel is arranged in the inner barrel base, and an opening end of the exhausting blind hole is communicated with the interior of the inner gun barrel. An exhausting hole communicated with the exhausting blind hole is further opened on the lateral wall at one end of the inner barrel base stretching out of the inner gun barrel. A penetration hole is opened on the wall of the outer gun barrel. The gas gun further comprises an exhausting guide tube penetrating through the penetration hole and the high-pressure gas cabinet and into the exhausting hole, and one end of the exhausting guide tube exposed out of the high-pressure gas cabinet is further provided with an exhausting valve. The gas gun with the projectile body filling and exhausting structure overcomes deficiencies that projectile bodies with O-shaped ring type gas check rings cannot enter firing bodies rapidly and the filling is slow in the filling process due to the pushing force of compressed gas.

The invention discloses a multifunctional drawer-type fishing box, which comprises a support, a box is fixed on the top of the support, and a fish storage drawer is arranged inside the box, and a first installation is arranged on one side of the support. slot, the inside of the first installation slot is rotatably connected with a seat plate, and the side of the seat plate away from the box body is provided with a second installation slot, and the two ends of the second installation slot are rotatably connected with a leg plate, and the support The sides of the leg plates close to each other are provided with limit nails, and the top of the box is provided with an installation hole between the fish storage drawer and the first installation groove, and a circular guide tube is sleeved in the installation hole, and the circular guide pipe The inside of the shaped guide tube is sleeved with a support rod. In the present invention, the height and rotation angle of the sun visor can be changed through the cooperative use of the pull ring, the support rod, the guide pipe and the fixing nail, which is convenient for sunshade or rain protection, and when the sun visor is placed in the placement groove, it does not take up space. Easy to carry and flexible to use.

The invention discloses novel infusion rod equipment. The equipment comprises a bottom plate, the bottom plate is connected to a stand rod through connection supporting rods, universal wheels are installed at the lower side of the bottom plate, the bottom plate is connected with a first lead screw through a first motor, a first lead screw nut sleeves the first lead screw, the first lead screw nutis connected to a pressure plate through pressure rods, and the lower side of the pressure plate is connected with guide supporting rods; and the upper side of the stand rod is connected with a swingrod through a top plate, the top plate is connected with a second motor and a guide pipe, the second motor is connected to a second lead screw nut through a second lead screw, the second lead screw nut is connected to the swing rod through a pull rod, the guide pipe is connected to a supporting plate through a slide rail, and the supporting plate is connected to a fixing cylinder. The equipment has the following advantages: the guide supporting rods and auxiliary supporting rods are driven through the first motor to realize fixation and movement of a drip rod, the swing rod is driven by the second motor to move the supporting plate up and down, an infusion bottle is convenient to fix through the fixing cylinder, at the same time, a heating device is arranged to be used when the ambient temperature is low in winter, and a table plate is arranged to facilitate movement of a child during infusion.