77results about How to "Reduced insertion resistance" patented technology

It is intended to provide a laryngeal mask comprising: an inflation cuff having an inflatable hollow tubular part, a back plate which is air-tightly bonded to the hollow tubular part so as to cover one end of the inside diameter side space, and a cuff inside space which is surrounded by the inside diameter curved face and the inside face of the back plate and has an opening in the side opposite to the back plate; an airway tube which has one end opening toward the cuff inside space and the other end opening toward the space outside the oral cavity; and a gastric tube insertion guide wherein a guide face, which aims at inserting a gastric tube from the mouth until its front edge reaches the stomach or esophagus region in the state of inserting the inflation cuff into the pharyngeal region, is continuously or intermittently provided from the inflation cuff to the outside of the oral cavity.

The invention provides a bulk type pipe joint. After being connected with a connecting pipe and acted by a force in a drawing directional, the pipe joint can reliably and fixedly clamp and block the connecting pipe, and the inserting resistance caused by teeth or claws of a locking ring when the connecting pipe is inserted is small. The bulk type pipe joint provided by the invention is characterized in that the connecting pipe accommodating part of the pipe joint is provided with the locking ring, and the locking ring is provided with a first claw part used for pressing the circumference surface of the connecting pipe when the connecting pipe is inserted and a second claw part used for clamping and blocking the connecting pipe when the connecting pipe is drawn, so that the connecting pipe is inserted so as to shift toward the drawn direction, the first claw part clamps and blocks the connecting pipe, and the interaction of the second claw part and a surrounding cone wall is deflected in a manner of pressing the circumferential surface of the connecting pipe.

The invention relates to a flag-shaped terminal with a square tube. The flag-shaped terminal comprises a cable connecting portion and a connecting female terminal; the connecting female terminal comprises a slot; two elastic planes which respectively extend to the middle of the slot and are used for covering a connecting male terminal are arranged on upper portions of perpendicular side walls on two sides of the slot, and a concave elastic wall is arranged between two ends of each elastic plane along a plugging direction; and a rectangular hole is arranged in the middle of the bottom of the slot, a suspension elastic arm is arranged in the middle of the rectangular hole, bottom elastic walls which are protruded towards the inside of the slot are respectively arranged on two sides of the suspension elastic arm, the elastic walls of the elastic planes, the suspension elastic arm and the bottom elastic walls form space in the slot, and movable space of the connecting male terminal is minimized under the limiting action by the space. The flag-shaped terminal has the advantages that the connecting male terminal can be firmly fixed, the contact area of the connecting male terminal is large, high pressure and friction force can be generated, and the flag-shaped terminal is favorable for durably and stably fixing the connecting male terminal.

The invention discloses an electromagnetic shielding structure used for a door, comprising a plug (100) which is fixed on the door body and a socket (200) which is fixed on the shielding body; the plug comprises a door cutter (110), a door bracket (120) and a metal reed (130) which is arranged on the door bracket; the socket comprises an internal insertion cutter (210), a middle bracket (220) and an external bracket (230); the middle bracket and the external bracket are provided with metal reeds (221 and 223) which push through each other correspondingly; a bypass passage (211) is formed between the middle bracket and the internal bracket; the end of the passage is provided with a chamber (213); wherein, the door cutter (110) is inserted into the metal reeds (221 and 223) which push through each other and are arranged between the middle bracket and the external bracket when the door is being closed; the internal side of the internal insertion cutter (210) is closely contacted with the metal reed (130) of the door bracket, thus gaining high shielding effect and leading the door to be easy to open and close at the same time.

The present invention provides a connector, capable of preventing insertion resistance of a fixer from oversize and preventing the fixer from loosening. A housing (10) of the connector is provided with a flexible spear-shaped member (19), and the fixer (40) is mounted thereon. The fixer (40) is provided with a spacing sheet (46) for limiting elastic deflection of the spear-shaped member (19) by entering a flexible space (23) of the spear-shaped member (19). An opposite surface (22) is provided with a plurality of projections (25) in a flexible direction of the spear-shaped member (19) of the housing (10), the projections are abutted with the spacing sheet (46) which enters the flexible space (23) to clip the spacing sheet (46) between the projections and the spear-shaped member (19). Eachprojection (25) is arranged in a position on the opposite surface (22) away from a projection range of the spear-shaped member (19).

It is intended to provide a sheath (1) for gastrostoma which comprises sheath body (11), into which a catheter (2) for gastrostoma is inserted, and a handle (12) and which is to be preliminarily inserted into a fistula in the case of inserting the catheter to the fistula and placing it in the body to thereby reduce the resistance against the insertion of the catheter for gastrostoma; a dilator provided with a sheath; a catheter kit for gastrostoma; and a method of dividing a sheath for gastrostoma. Use of the sheath for gastrostoma as described above makes it possible to reduce the insertion resistance in the case of placing a button type catheter for gastrostoma in gastrostomy or at the exchange of the catheter for gastrostoma. Moreover, it facilitates the air-supply control of an endoscope so that the endoscopic visual field can be stabilized in the course of operation.

The invention discloses an efficient vagina cleaning device for gynecological clinical use. The device includes a handle, a push head, and a liquid storage box, wherein the handle is of a hollow structure, the push head is used for assisting insertion and the liquid storage box is used for supplying cleaning liquid. A main shell is connected between the handle and the push head. The periphery of the main shell is symmetrically provided with push plates, the main shell is internally and rotatably connected with a two-way screw rod, the periphery of rod bodies on the two sides of the two-way screw rod are symmetrically sleeved with screw rod sleeves cooperatively, and the screw rod sleeves are slidably arranged in the main shell and can move back and forth in the length direction of the mainshell. The sides, away from the two-way screw rod, of the screw rod sleeves are in hinged connection with connection rods, and the other ends of the connection rods are hinged to the inner side facesof the push plates. According to the cleaning device in the embodiment, the two-way screw rod of the hollow structure and the push plates which can be driven by the screw rod are arranged, thus the push plates can be used for opening the vagina when the device is in use, spraying of a cleaning solution is not affected, and the cleaning effect is ensured.

The invention discloses a driving motor for an automobile cooling fan, comprising a controller assembly, a stator winding and an outer rotor assembly, wherein the controller assembly comprises a heatsink, a rear end cover, a conductive bracket and a PCBA board; three through holes are disposed in the heat sink; three mounting holes are disposed in the conductive bracket; positioning embedding grooves are disposed in the back of the conductive bracket; a conductive link is inserted into each mounting hole; the front end of each conductive link is electrically connected to a corresponding coilof the stator winding; a tail section of each conductive link is bent and then embedded into the corresponding positioning embedding groove; the tail end of each conductive link stretches out of the corresponding positioning embedding groove after being bent; the heat sink and the conductive bracket are provided with positioning support structures for positioning and supporting the PCBA board, andinductors, capacitors, conductive links and wire harness conductive pins are all welded and fixed to corresponding conductive holes in the PCBA board. According to the driving motor for the automobile cooling fan, the stator winding and the PCBA board are better electrically connected, conductive pieces are omitted, the welding operation is simpler, and the conductive efficiency is improved.

The purpose of the present invention is to reduce an insertion resistance of a lid member and to ensure a stable sealing performance of a sealing section. To this end, this lid member with a waterproofing function comprises: a protrusion section that is integrally formed with one surface of a main resin body of the lid member, which is used to open / close an opening section formed on a housing, so as to fit the opening section; and a sealing section that is made of a rubber-like elastic material, is integrally formed with the outer circumferential surface of the protrusion section, and has an annular protrusion that comes into tight contact with the circumferential surface of the opening section. The lid member has a configuration wherein the annular protrusion is shaped such that the diameter of the annular protrusion increases toward the inner side of the opening section, a tapered surface that converges toward the inner side is formed on the outer circumferential surface of the protrusion section, and a sealing surface with a arc-shaped cross section is continuously provided with the maximum-diameter section of the tapered surface.

The present invention provides a high pressure resistant hose of low longitudinal deformation quantity under a pressurized condition, capable of being stably laid in a narrow pipe layout space, and of good vibration absorbing properties. A hose body having an inner surface side layer 13, a reinforcement layer 15 and an outer surface side layer 17 laminated and including constant inner diameter, outer diameter and wall thickness over whole length is formed. End part sides in a longitudinal direction of the hose body are expanded to form a main part 7 of a small diameter, a caulking part 9 of a large diameter and a taper part 1. Braiding angle of the main part 7 is set to 48 degree or more and less the 54 degree. Braiding angles of the caulking part 9 and the taper part 11 are set to 68 degree or less with exceeding 57 degree, roughly 61 degree or less with exceeding 55 degree from original range 48 degree or more and less than 54 degree by expansion.

The invention relates to a reverse building method rear-inserting steel pipe column vertical positioning device and a construction method thereof. The reverse building method rear-inserting steel pipe column vertical positioning device comprises a crane, steel wire ropes and a hydraulic machine. The upper end of a steel pipe column extends out on the outer side of the hydraulic machine, and the lower end of the steel pipe column is open. Vibrators which are distributed symmetrically with the aspect of the axis of the steel pipe column are arranged on a column body extending out of the upper side of the hydraulic machine, and the vibrators are evenly distributed on the periphery side of the column body along the annular pipe column. A disturbance part is distributed on a lower end column body of the steel pipe column, and the lower end column body of the steel pipe column is further provided with a notch. In the construction process, it is guaranteed that the lengths of the two steel wire ropes are consistent and the two steel wire ropes are both in a tensioned state, a holding and clamping device of the hydraulic machine is used for accurately positioning the steel pipe column, the vibrators which are arranged in a paired mode are used for vertical adjusting until the verticality and positioning of the steel pipe column meet demands. The reverse building method rear-inserting steel pipe column vertical positioning device and the construction method thereof are prone to operation and vertical adjusting, precise in control, and particularly suitable for construction and mounting of steel pipe columns with large diameters and larger lengths.

The invention discloses an SMW construction method for arranging an elliptic-cone-shaped pile head at the end of H-shaped steel. According to method, the elliptic-cone-shaped pile head, the cut H-shaped steel and a cemented soil solidification body are included, wherein the top of the elliptic-cone-shaped pile head is provided with a reserved gap matched with a web of the H-shaped steel in thickness, and the web of the H-shaped steel can be inserted in the reserved gap; a V-shaped boundary is cut in a wing plate at the lower end of the H-shaped steel through a cutting tool to reduce insertion resistance during construction. In the construction process through an existing SMW construction method, in order to reduce the insertion resistance to the H-shaped steel, an anti-friction agent is smeared on the surface of the H-shaped steel before the H-shaped steel is inserted; on this basis, the end of the H-shaped steel is cut into the V shape, and the H-shaped steel is inserted in the gap of the elliptic-cone-shaped pile head to form a streamline structure; the elliptic-cone-shaped pile head can separate cemented soil, so the insertion resistance to the H-shaped steel can be effectively lowered, the insertion speed can be increased, and the construction period can be shortened; due to the design of the elliptic-cone-shaped pile head, a guiding effect can also be achieved in the inserting process of the H-shaped steel, and the H-shaped steel is prevented from deflecting in the sinking process during construction.

The invention discloses ecological agriculture planting equipment, and belongs to the technical field of agriculture planting equipment. The ecological agriculture planting equipment comprises a mounting frame and travelling wheels rotatably connected to the bottom, wherein a first cam and a second cam are rotatably connected to the top of the mounting frame; a third driving wheel, a first drivingwheel and a second driving wheel are rotatably connected through a first connecting part; a planting frame is in sliding connection to the mounting frame; the top of the planting frame is abutted against the first cam; guiding cylinders are fixedly connected to the planting frame, and a soil breaking machine is rotatably connected to the bottom of each guiding cylinder; a discharging cylinder isin sliding connection to the inner part of each guiding cylinder, a second push plate is connected to the top of each discharging cylinder, and the second push plates are abutted against the second cam; and a material transporting mechanism is connected to the mounting frame, material transporting openings corresponding to the material transporting mechanism are formed in the guiding cylinders andthe discharging cylinders, and the material transporting mechanism is rotatably connected with the second driving wheel. The ecological agriculture planting equipment disclosed by the invention is convenient and quick to use, a traditional low-efficiency planting manner of digging pits for planting by at least two people is well changed, and the ecological agriculture planting equipment is suitable for promotion.

The present invention provides a panel strip for a vehicle, wherein, the installation property is excellent when an end cap is inserted and assembled to the end of the panel strip. No clearance exists between the end cap and the end of the panel strip. The buckling force is high. The panel strip for the vehicle comprises a panel strip body and the end cap which is equipped to the end of the panelstrip body. The invention is characterized in that: the panel strip body is of a C groove shape with an inner surface side opening; turning-back parts in the inward direction are provided at both sides in the width direction; the end cap comprises an insertion part inserted to the bottom of the insertion strip body and an appearance part which covers the end surface of the insertion strip body; the insertion part is provided with a rod part which projects along the outer part and extends from the front end of the insertion through the inner side opening of the panel strip body when inserted into the panel strip body; the rod part is provided with fixing paws at two sides of the width direction; after the insertion part of the end cap is inserted into the end of the panel strip body, the front end of the rod part is rotated to the main body side of the panel strip, and the fixing paws are buckled to the turning-back parts of the panel strip body.

The present invention provides a cable connecting connector having connection strength between a conductor and a contact by reducing the resistance at the time of collectively soldering cables with different diameters, it is configured of a horizontally elongated insulating housing, a plurality of contacts each having a base part to be secured to the insulating housing, and a connecting part having a same height in an up and down direction, and arranged in parallel to one another and perpendicular to a lengthwise direction of the insulating housing, and thermoplastic holding base parts each protruding from a flat surface of the insulating housing into between the contacts and facing the connecting parts thereof.

The invention discloses an electromagnetic shield door, comprising a plug-in (100) which is fixed onto a door and a socket (200) which is fixed onto a shield, wherein, the plug-in comprises a door knife (110), a door bracket (120) and a metal reed (130) which is arranged on the door bracket; the socket comprises an inner slotting tool (210), a middle bracket (220) and an outer bracket (230), the middle bracket and the outer bracket are arranged with metal reeds (221, 223) which are relatively depended, a by-pass channel (211) is formed between the middle bracket and the inner bracket, a chamber (213) is arranged at the end part of the channel; wherein, the door knife (110) is inserted into the metal reeds (221, 223) which are arranged between the middle and outer brackets and are relatively depended when the door is closed, the inner side of the inner slotting tool (210) is closely contacted with the metal reeds of the door bracket, therefore, the door is easily opened and closed while obtaining relatively high shielding effectiveness.

The invention relates to a gallium nitride transistor with self-aligned source and drain electrodes and a preparation method of the gallium nitride transistor. The gallium nitride transistor with theself-aligned source and drain electrodes comprises a substrate, a composite buffer region, a channel layer, a composite barrier region, a source electrode, a drain electrode and a grid electrode, wherein the grid electrode comprises a grid pin and a grid head, and the width of the grid head is greater than that of the grid pin; the side surface, which is close to the grid electrode, of the sourceelectrode and the first side surface of the grid head are in the same vertical plane; the side surface, which is close to the grid electrode, of the drain electrode and the second side surface of thegrid head are in the same vertical plane. According to the gallium nitride transistor with the self-aligned source and drain electrodes, through self-alignment of the source electrode, the drain electrode and the grid electrode, a source-drain interval similar to the width size of the grid head is realized, the source-drain interval is reduced to the greatest extent, and the source electrode access resistance and the drain electrode access resistance of the transistor are reduced, so that the power loss of the transistor is reduced, and the frequency characteristic of the transistor is improved.

The invention discloses a high-reliability battery protection switch. The high-reliability battery protection switch mainly comprises a contact system and a release apparatus; the contact system and the release apparatus adopt a spring contact finger contact mode for bearing a current in the circuit and performing circuit conversion in needing; the release apparatus adopts a structure of winding asliding block body with a blade spring, and is responsible for state reliable holding before the switch is switched and performing reliable releasing in needing, so as to enable the contact system tocomplete a circuit switching action; and the contact system and the release apparatus are connected together through a connecting rod. The high-reliability battery protection switch has the characteristics of high switching reliability and light overall weight.

The invention relates to a terminal structure of a guillotine-type connector. The terminal structure comprises at least one first terminal, wherein the first terminals are each provided with two plates in parallel; a front insertion end, a plug tail end and an upper insertion end are formed between the two plates; a bottom plate is connected between the two plates; the plates are each integrally connected with an arc-shaped portion protruding inwardly at the position adjacent to the edges of the front insertion end and the upper insertion end; a first clamping position is formed at the shortest distance between the two arc-shaped portions; the arc-shaped portions are connected with clamping pieces that are flat and extend toward the plug tail end; the gap between the two clamping pieces diminishes gradually from the ends of the arc-shaped portions to the bottom plate and the plug tail end, so that the gap at the position, adjacent to the upper insertion end, between the two clamping pieces is relatively larger than that at the position, adjacent to the end of the bottom plate, between the two clamping pieces, thereby forming a surface-contact conductive state by elastic turning ofthe two clamping pieces.

The invention discloses a loader bucket, and relates to the technical field of loader buckets. The loader bucket comprises a loader bucket body and a plurality of bucket teeth installed at the front end of the bucket body. The bucket teeth are a plurality of movable knife plates spliced side by side, and the movable knife plates are connected with the bucket body through fasteners. Each movable knife plate is provided with a connection portion, and one or more sharp tooth portions arranged at one end of the corresponding connection portion and connected with the corresponding connection portion into a whole. The free end of each sharp tooth portion is a sharp-corner-shaped tooth top, and each sharp tooth portion extends obliquely towards the two sides of the corresponding connection portion from the tooth top to form two first oblique edges. Compared with the prior art, due to the fact that the work portions of the movable knife plates can be adjusted, the loader bucket has dual effects, thereby being capable of better adapting to the working conditions of shoveling and loading cold steel slag and greatly improving the working efficiency.

The invention discloses an energy-storage concrete vibrator adopting a variable cross-section channel for accelerating airflow. The energy-storage concrete vibrator structurally comprises a driver anda rod, wherein a signal output end of the driver is electrically connected to the rod through a cable; the rod is of a cylindrical structure and comprises a rod casing, rolling sleeves, an exhaust disc, an air outlet, pistons, a spindle and a seal ring, the two rolling sleeves are vertically symmetrically suspended on the spindle, the seal ring is arranged in an inner chamber formed in the innersides of the rolling sleeves, and the vertically symmetrically distributed pistons are welded at the head end of the spindle and fixed on the inner wall of the rod casing. A prime mover of the conventional vibrator is improved, air source driving is adopted, the energy-storage concrete vibrator is small in inserting resistance besides explosive-proof and waterproof performance, downhole moving operation is facilitated, and through cooperation with an air inlet mechanism, energy consumption is reduced effectively and service life is prolonged greatly while accelerated high-frequency strong vibration is realized.

The invention discloses a grabbing device for vegetable pickling. The grabbing device comprises a pickling table, a crane frame, a grabbing device body, a pickle grabhook and a transfer trolley, wherein a plurality of pairs of parallel traveling rails are arranged on the top face of the pickling table, and a pair of transverse rails is arranged between each pair of traveling rails; a crane beam is arranged on the crane frame and is connected with a rack; the grabbing device body comprises a moving seat, the moving seat is connected with a translation motor, the translation motor is connected with a gear, and the gear is meshed with the rack; the moving seat is connected with a first telescopic rod and a second telescopic rod, and the bottom end of the first telescopic rod is connected with a jar cover grabhook; the pickle grabhook comprises a grabhook seat, the bottom end of the grabhook seat is connected with a pair of supporting seats, and the bottom ends of the supporting seats are rotationally connected with a pair of grabhook fingers; and the transfer trolley moves on a connecting rail, the transverse rails and longitudinal rails. According to the grabbing device for vegetable pickling, a ground rail type moving mechanism is adopted, and therefore, the stability performance can be improved; and the opening degree of the grabhook fingers of the pickle grabhook can be adjusted, so that grabbing is convenient.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a negative electrode material capable of being rapidly charged at a high rate. The negative electrodematerial comprises a composite precursor coated with hard carbon, and the composite precursor comprises graphene and mesocarbon microbeads attached to the surface of the graphene. The high isotropy of the mesocarbon microbeads is beneficial to internal lithium ion transmission, the graphene can promote electron conduction, the hard carbon coating layer is beneficial to intercalation and deintercalation of lithium ions, and under the combined action of the mesocarbon microbeads, the graphene and the hard carbon coating layer, the high-rate charge-discharge performance and cycle performance ofthe negative electrode material can be remarkably improved.

The invention provides an air inlet assembly with a disinfection function and an elevator air conditioner. The air inlet assembly comprises an air inlet panel provided with an air inlet, a disinfection purifier, and a filter mechanism. According to the air inlet assembly with the disinfection function and the elevator air conditioner, the disinfection purifier is arranged at the air inlet to conduct molecular breaking disinfection on air, so that on the premise that it is guaranteed that air in an elevator is purified, an elevator structure is prevented from being changed, the disinfection purifier is directly arranged on the air inlet assembly, the elevator upgrading and reconstruction cost is greatly reduced, convex hulls can reduce the insertion resistance of the disinfection purifier and meanwhile, can be matched with elastic sealing pieces to improve the firmness of expanded connection fit, and folded edges are arranged, so that strength and rigidity can be improved, and the corresponding disinfection purifier or the filter mechanism can be guided and reversely stopped.

The invention discloses a graphene artificial cochlea electrode and a preparing method thereof. The electrode comprises a tip part, a bent part, contact electrodes, an electrode carrier and electrodewires, wherein the tip part is arranged at the foremost portion of the artificial cochlea electrode, the electrode carrier wraps the electrode wires and half wraps the contact electrodes connected with the electrode wires one to one, the bent part is an annular groove formed in the electrode carrier, each contact electrode comprises an inner side contact and an outer side contact, the inner side contact faces a worm shaft and the outer side contact backs to the worm shaft when the contact electrode is used and bent, and the electrode wires are wavy. The surface bioactivity of the contact electrodes is enhanced, the adhesion, proliferation and differentiation of cells are facilitated, meanwhile the formation and integration of peripheral nerves with the graphene artificial cochlea electrodeas the implant material are promoted, and the aim of improving the surface bioactivity and biocompatibility of the artificial cochlea contact electrodes is realized.

The invention discloses a loading machine visbreaking guiding type bucket. The bucket is characterized by comprising a bucket body; multiple sets of bucket teeth are fixed on the bucket body; the bucket body comprises a main cutting board, side cutting boards, side plates, a moving arm supporting plate, a bucket wall, and a pull rod supporting plate; side plates are arranged on two sides of the bucket wall; a side cutting board is connected with the front end of each side plate; the bucket teeth are fixed at the opening of the upper end of the main cutting board; and the rear end of the bucketwall is fixedly connected with the moving arm supporting plate and the pull rod supporting plate. Through the theory of bionics and finite element analysis optimization, a bucket base angle, a bucketwall opening angle, radius of a bucket base arc and rotary radius are achieved, so the flow of materials in the bucket is smooth and adhesivity of the materials is minimized. Through operation of thebucket, the mobility of the materials is significantly improved, machinery operation efficiency is greatly improved, working resistance is lowered, fuel oil is saved and emission is reduced.

The invention discloses a temperature measurement cable component of a grain condition measurement and control system. The component comprises a trunk line (3), M lines of branch lines (2), and M*N temperature measurement cables (1), wherein each temperature measurement cable (1) consists of a field temperature measurement cable lead wire (19), J package mechanisms and injection pressing bodies (70), wherein the J package mechanisms are distributed on the field temperature measurement cable lead wire (19); and the injection pressing bodies (70) are arranged at the lower end of the field temperature measurement cable lead wire (19). The upper ends of the temperature measurement cables (1) are fixedly connected each line of branch lines (2) and are distributed on each line of branch lines (2). Both the branch lines (2) and the trunk line (3) adopt the field temperature measurement cable lead wire (19). The field temperature measurement cable lead wire (19) comprises a No. 1 steel wire lead wire (16), a No. 2 steel wire lead wire (17) and field insulating sleeves (20). The annular insulating sleeves on the periphery of the No. 1 steel wire lead wire (16) and the No. 2 steel wire lead wire (17) are connected into a whole by the intermediate plate part of the field insulating sleeves (20).

It is intended to provide a laryngeal mask comprising: an inflation cuff having an inflatable hollow tubular part, a back plate which is air-tightly bonded to the hollow tubular part so as to cover one end of the inside diameter side space, and a cuff inside space which is surrounded by the inside diameter curved face and the inside face of the back plate and has an opening in the side opposite to the back plate; an airway tube which has one end opening toward the cuff inside space and the other end opening toward the space outside the oral cavity; and a gastric tube insertion guide wherein aguide face, which aims at inserting a gastric tube from the mouth until its front edge reaches the stomach or esophagus region in the state of inserting the inflation cuff into the pharyngeal region,is continuously or intermittently provided from the inflation cuff to the outside of the oral cavity.