240 results about "Curved Tube" patented technology

A cable guide and system are disclosed for maintaining a desired bend radius. The cable guide includes two substantially curved tube halves, each tube half comprising a curved portion having a predetermined radius. The cable guide also includes a hinge joining the tube halves and a fastening member configured to fasten the tube halves together. A first end of each of the tube halves is shaped to adhere to a cable connector. The cable connector terminates a cable. The tube halves have an open configuration and a closed configuration. When in the closed configuration, the tube halves are fastened together by the fastening member. In the closed configuration, the tube halves form a tubular sleeve. The tubular sleeve includes a lumen through which a cable may extend.

A biocompatible, mechanical, micromachined pressure sensor and methods of manufacturing such a pressure sensor are provided. The pressure sensor of the current invention includes a high-aspect-ratio curved-tube structure fabricated through a one-layer parylene process. The pressure sensor of the current invention requires zero power consumption and indicates the pressure variation by changes of the in situ in-plane motion of the sensor, which can be gauged externally by a direct and convenient optical observation. In one embodiment, the pressure sensor of the current invention has been shown to work as an IOP sensor for eye implantation where the intraocular in-plane motion of the sensor can be recorded from outside of the eye, such that the intraocular pressure in glaucoma patients can be constantly monitored.

The invention relates to a bangle comprising an annular-shaped cover which is formed, essentially, of two curved tubes. The tubes are connected together on one of the tube ends by a hinge and comprises a liquid tank. One tube is embodied in such a manner that it receives the liquid tank, and a spraying head of the liquid tank protrudes into a tube end of the adjacent tube. The two tubes can be displaced in relation to each other in the region of the tube end thereof which is oriented away from the hinge.

A stent comprises a flexible tube having a proximal end, a distal end, and a passageway extending from said proximal end toward said distal end. A first generally straight tube segment extends from the proximal end while a first generally curved segment extends from an end region of the first generally straight tube segment disposed away from the proximal end of the stent. A second generally straight tube segment extends from an end region of the first curved segment away from the first generally straight tube segment and is arranged at an acute angle relative to the first generally straight tube segment. A second generally curved tube segment extends from one end of the second generally straight tube segment and includes a channel on an exterior surface of the second generally curved tube segment. The first generally curved tube segment and the second generally straight tube segment further include at least one cavity irrigation hole extending from the tube passageway, for providing irrigation fluids into the cavity into which the stent is inserted. At least one segments includes a channel on an exterior surface. The channel is sized to serve as a reservoir to contain a predetermined amount of at least one form of medication for delivery, over a period of time, of the medication to a cavity region proximate which the stent has been inserted.

A biocompatible, mechanical, micromachined pressure sensor and methods of manufacturing such a pressure sensor are provided. The pressure sensor of the current invention comprises a high-aspect-ratio curved-tube structure fabricated through a one-layer parylene process. The pressure sensor of the current invention requires zero power consumption and indicates the pressure variation by changes of the in situ in-plane motion of the sensor, which can be gauged externally by a direct and convenient optical observation. In one embodiment, the pressure sensor of the current invention has been shown to work as an IOP sensor for eye implantation where the intraocular in-plane motion of the sensor can be recorded from outside of the eye, such that the intraocular pressure in glaucoma patients can be constantly monitored.

A mattress with airflow-circulating function has a main body and a ventilator. The main body has a crisscross groove formed in the main body. The ventilator is detachably connected with the main body and has a hollow joint, four extending tubes and a curved tube. The joint has five openings. The extending tubes are respectively and securely connected to four of the openings of the joint to form a cross and are mounted in the groove. Each extending tube has multiple apertures formed in the extending tube. The curved tube is securely connected to the other one of the openings of the joint and is mounted through the main body. Accordingly, air can be pumped into the joint and is ejected out from the apertures toward the part of the human body. Therefore, the circulating airflow can massage the part of the human body, relieve the pressure and facilitate blood circulation.

A curved tube (30) is equipped with the following: a plurality of first curving slots (33a) that are provided at set intervals along a longitudinal axis (O) direction of a cylindrical curved tube body (31) and that extend in the circumferential direction of the curved tube body (31); wire guide-forming slots (first curving slots (33a')) provided forming a pair with respect to the arrangement of the plurality of first curving slots (33a) and extending in the peripheral direction of the curved tube body (31); and a wire guide (35a) formed by deforming an outer peripheral part of the curved tube body (31) in the inner radial direction between the wire guide forming-slots forming a pair. The curved tube (30) wherein the width (H2) of the curving slots (33a') adjacent to the wire guide (35a) is set to be relatively narrower than the width (H1) of the other curving slots (33a).

A stent comprises a flexible tube having a proximal end, a distal end, and a passageway extending from said proximal end toward said distal end. A first generally straight tube segment extends from the proximal end while a first generally curved segment extends from an end region of the first generally straight tube segment disposed away from the proximal end of the stent. A second generally straight tube segment extends from an end region of the first curved segment away from the first generally straight tube segment and is arranged at an acute angle relative to the first generally straight tube segment. A second generally curved tube segment extends from one end of the second generally straight tube segment and includes a channel on an exterior surface of the second generally curved tube segment. The first generally curved tube segment and the second generally straight tube segment further include at least one cavity irrigation hole extending from the tube passageway, for providing irrigation fluids into the cavity into which the stent is inserted. At least one segments includes a channel on an exterior surface. The channel is sized to serve as a reservoir to contain a predetermined amount of at least one form of medication for delivery, over a period of time, of the medication to a cavity region proximate which the stent has been inserted.

Advantageous instruments, assemblies and methods are provided for undertaking surgical procedures (e.g., cardiovascular interventional procedures). The present disclosure provides advantageous devices, assemblies and methods in the field of cardiac surgery and interventional cardiology procedures. Advantageous protection assemblies / devices (e.g., aortic arch embolic protection assemblies / devices) and related methods of use are provided. The present disclosure relates generally to embolic protection devices for use in the aortic arch to protect the distal vasculature during cardiac surgery and interventional cardiology procedures. An exemplary embolic protection device can take the form of an expandable / inflatable bladder member in a curved tube shape. The present disclosure provides advantageous (embolic) protection devices / assemblies, systems incorporating such devices / assemblies, and methods of use of such devices / assemblies for the benefit of such surgical practitioners and their patients.

A connector for a faucet is particularly a curved tube in one piece. The curved tube has two ends and a twist section and further comprises a mounting base and a coupler assembly respectively attached to the two ends of the curved tube. Selectively, the twist section extends between the two ends and is smoothly swirled and bent to make the curved tube non-planar in curving direction. Thereby, the connector has a simple structure and neat appearance to reduce manufacturing cost and to increase aesthetic appreciation. Moreover, the connector directly attaches the faucet to a wash basin in a convenient way and has no leakage problem itself because the connector is one-piece without any junction seam.

A flexible shaft of nonrigid components for use in pushing an eddy current probe through small diameter pipe bends includes a thin-walled flexible outer sleeve enclosing a data cable helically coiled around a central inner core, typically of braided wire. The inner core is functionally incompressible and inextensible to sustain compressive forces derived from pushing the shaft through a pipe. The outer sleeve supported from within by the data cable and the inner core for sustaining lateral forces of pusher rollers is longitudinally even and smooth to advance the shaft without damage to it.

A cooling system for an annular stator housed within a transmission casing includes a first curved tube sufficiently sized to at least partially circumscribe the stator when the tube is placed within the casing. The first tube has a plurality of circumferentially spaced fluid openings. An intake conduit connects the first tube to the transmission casing to deliver fluid through the tube for flow through the fluid openings to cool the stator. Preferably, a second like curved tube is also provided and a connector tube connects the first and second tubes to allow fluid flow therebetween. A method of assembling a cooling system is also provided.

A stand column includes two tubes having longitudinal axes and curved tube walls surrounding the longitudinal axes. The two tubes include an inner tube guidable in a telescoping manner in an outer tube. A clamping device is structured and arranged to fix the inner tube in various positions with respect to the outer tube, and includes at least one rolling element with a rotational axis oriented parallel to a normal to the longitudinal axes. The at least one rolling element is positioned between at least one clamping body arranged on one of the two tubes and the other of the two tubes, and has a circumferential wall with a curvature parallel to the rotation axis that is adapted to a curvature of the other tube.

A collapsible exercise machine for strengthening the core muscles (transverse abdominal, internal obliques, external obliques, rectus abdominis, and erector spinae) includes a frame mounted on a base on which a user sits and manipulates an upstanding lever arm. A seat is convertible between two differently-angled positions for back extension or abdominal exercises. The lever arm rotates a curved tube having a plurality of force adjustment holes. The tube passes through a frame at the upper end of a gas spring, and engaging an adjustment pin on the frame with different adjustment holes changes the amount of resistance. The entire frame above the base can be vertically adjusted to accommodate different sizes of user without altering the relative position between the seat (and user's hips) and the axis of rotation of the lever arm thus not affecting / changing the designated resistance between users of different heights (resistance is affected when the lever arm is lengthened). The connection between the frame and the base enables the unit to be collapsed to a profile small enough to fit under a bed.

Novel systems and methods of using a bent-tube object in a drawing file include entering a custom bent-tube object in a drawing file, and using the bent tube object to generate bender driver data. In a particular method, the step of entering the custom bent-tube object in the drawing file includes entering a multi-segmented line, and generating the custom bent-tube object based at least in part on the lengths of and angles between the segments of the multi-segmented line. In a more particular method, the step of entering the custom bent-tube object further includes selecting a tube type (e.g., a particular diameter, material, etc.), and the step of generating the custom bent-tube object further includes retrieving bent-tube object data from an object data file based at least in part on the tube type.

The invention discloses a 90-degree bent pipe guide piece arrangement method. The 90-degree bent pipe guide piece arrangement method comprises a 90-degree bent pipe, a guide piece A and a guide piece B. Two guide pieces are arranged in the 90-degree bent pipe, and are respectively the guide piece A and the guide piece B; the guide piece A is near the inner side of the bent pipe; and the guide piece B is near the outer side of the bent pipe. The guide pieces are arranged according to a golden ratio, that is, the guide piece B is arranged in the inner diameter place of the bent pipe from the inner wall of the outer side of the bent pipe by 0.618 time, and the guide piece A is arranged on the guide piece B from the inner wall of the inner side of the bent pipe by 0.618 time in the longitudinal section of the bent pipe. In the fluid flowing direction, after the guide piece B passes through the bent pipe, one part of extension section is generated; and the distance of the extension section is 0.3 time of the inner diameter of the bent pipe. The guide pieces in the bent pipe are reasonably arranged to reduce or eliminate complex flowing conditions in an elbow, so that the flowing field distribution is effectively improved, the pipe noise caused by unstable flowing is reduced, the reliability of the bent pipe is improved, and the service life is prolonged.

A fluid manifold apparatus includes: (a) an array of spaced-apart manifold fittings, each manifold fitting aligned in a predetermined angular orientation. Each manifold fitting includes: (i) a tubular neck; (ii) a pair of spaced-apart tubular arms extending away from a first end of the neck; and (iii) a coupling connected to a second end of the neck; and (b) a plurality of curved tubes, each tube being coupled to one arm of each of two adjacent manifold fittings.

The invention discloses an unsupported alternating curved tube dry type evaporator, which comprises a refrigerant inlet, a refrigerant outlet, a chilled water inlet, a chilled water outlet, a first end socket, a second end socket, a first tube sheet, a second tube sheet, a shell, a clapboard, heat exchange tubes and a bundling steel belt, wherein the heat exchange tubes are alternating curved tubes, and a ratio of the twist range and the equivalent diameter of each heat exchange tube is 6-12; the ratio of the short shaft and the long shaft of the cross section of the heat exchange tube 9 is 0.5-0.7; and the alternating curved heat exchange tubes are sequentially contacted with each other to be arranged, and are supported by self to form tube bundles depending on each contact point of the alternating curved tubes. The invention strengthens the turbulence degree of fluid in the tubes so that the fluid in the tubes can be fully mixed and the boundary layer is reduced, and strengthens the heat transfer. A shell side is not provided with baffles and can realize self supporting depending on the mutual contact of the alternating curved tubes, the fluid flows among the tubes are uniform, flow dead zones are eliminated, fouling deposit of the shell side is reduced, the heat transfer efficiency is improved, the service life of equipment is prolonged, and production cost is lowered.

A hand-held personal cleaning device is provided for allowing users with limited upper body mobility to clean hard to reach areas after using the restroom. The device comprises a handle having a grip, a working end having a grasping means, and a rigid curved tube secured therebetween. A first button disposed on the inside of the handle grip allows a user to open and close the grasping means located at the working end. The grasping means is used to retain and release a tissue loofah. A second button is located on the underside of the handle and may be used to disburse liquid from a reservoir within the handle onto the tissue loofah. A user may then maneuver the device and use the loofah to wipe his or her hard to reach areas. The loofah may then be disposed of by depressing the trigger button again, releasing the loofah for disposal down a drain or in a waste basket.

The invention belongs to the technical field of dust removal devices and particularly relates to a curved tube inner wall rust removal device. The curved tube inner wall rust removal device comprisessupports, grinding blocks, elastic parts and a power element. The grinding blocks are slidably connected with the supports and can make contact with the tube wall. The two ends of each elastic part are connected with the corresponding grinding block and the corresponding support. The supports are connected with the power element through a flexible shaft. The supports and the grinding blocks are can be rotated through the power element to conduct rust removal; the grinding blocks can make contact with the inner wall of a curved tube through the elastic parts; the grinding blocks can be guaranteed to adapt to pipelines with different diameters and curvatures so that the curved tube inner wall rust removal device can conduct rust removal smoothly. Moreover, the curved tube inner wall rust removal device has good passage capacity.

A minimally invasive skeletal fixation device includes two curved tubes and two positioning members. The two curved tubes are attached to each other and are in communication with each other. The positioning members are coupled to the curved tubes. The device is applicable to surgical operations for treating bone factures and offers the advantages of small incision size, simple structure, easy operation, improved performance of surgical operation, and flexible adjustment of installation sites of Kirschner pins.

The invention discloses a test tool for inner-high-pressure-shaped complicated automobile tube beams. The test tool is capable of detecting ordinary regular pipe fittings, breaking through limitation of conventional test tools by providing a plurality of 'earthworm surface' test tools which coincide with the pipe fittings in dimension, and detecting complicated automobile pipe fittings with shaped surfaces. Furthermore, the test tool can be popularized and applied to detection of any workpiece with a complicated shaped surface. In addition, the test tool disclosed by the invention is capable of detecting the trend, the length, the verticality and the location degree of the pipe fitting. The test tool has the characteristic that the vertical distance from any point to the pipe fitting is equal, so that a weld bead can also be detected; the welding quality is ensured; in addition, the resilience of an elbow pipe can also be detected; and the resilience value can be calculated as long as the difference value between a clearance and the vertical distance between the pipe fitting and the test tool is measured, and therefore, the test tool is suitable for being used as an evaluation tool for elbow pipe quality at a bending test stage.

An intake manifold for an internal combustion engine, comprises an upstream unit of molded resin, the upstream unit including an elongate collector portion that has an inlet opening for introducing cleaned air, and a manifold portion that includes a plurality of curved tubes that are fixed to one another, each curbed tube having an inlet opening exposed to an interior of the elongate collector portion; a downstream unit of molded resin, the downstream unit including a base portion that is to be connected to a cylinder head of the engine and a plurality of apertured collar portions that are projected from the base portion; and a plurality of sealing members through which leading ends of the curved tubes are hermetically inserted into the apertured collar portions thereby to constitute an entire construction of the intake manifold, wherein the molded resin of the downstream unit has a heat resistance that is higher than that of the upstream unit.

A vehicle configured to move through a network of interconnected tubes includes a body, a motor, a motorized wheel, a biasing assembly, and a first element. The motorized wheel directly engages an inner surface of the tubes. The biasing assembly causes the motorized wheel to maintain continuous contact with the inner surface of the tubes during operation. A waist of the vehicle is constrained by an inner diameter (D) of the curved tube, a radius of curvature (R) of the curved tube, and a length (L) of the wheelbase of the vehicle. The waist of the body is sized such that the vehicle can freely move within any of the tubes without getting stuck therein.

The invention provides a Coriolis mass flowmeter, comprising a measuring tube capable of rotating around a rotation axis and a pair of vibrating sensors; wherein the measuring tube is made by metal glass, the measuring tube is provided with an inlet straight tube section which is coaxial with the rotation axis and guides the fluid to be measure to flow in, an outlet straight tube section which is coaxial with the rotation axis and guides the fluid to be measured to flow out as well as a curved tube section which is arranged between the inlet straight tube and the outlet straight tube and is communicated with the two; and the vibrating sensor is arranged at the two ends of the curved tube of the measuring tube. The mass flowmeter of the invention has high sensibility and can be applied to mass flow measuring in small flow or in large flow regulating range.

A guide tube for microsurgical instruments has a linear tube having a hollow formed in the length direction thereof, a curved tube mounted to the front end of the linear tube and having unit bodies connected to allow bending, an elastic body for giving an elastic force so that a gap between the unit bodies increases, and a tension control unit mounted to the rear end of the linear tube to bend the curved tube by controlling tensions of a plurality of wires extending from the curved tube, wherein the tension control unit controls the tensions of the wires in a state where the curved tube is curved so that the rigidity of the curved tube increases to support a surgical instrument located in the linear tube and the curved tube.