39 results about "Neck operations" patented technology

A semi-shield excavator, the excavator body inserted into the front end of the buried pipe is provided with a cutter head with an expansion and contraction mechanism, and a plurality of clamps for fixing and holding the excavator body , through the expansion and contraction actions of these clamps, the inner surface of the buried pipe is freely crimped and released to form a brake shoe. This kind of excavator can realize that there is no need for a vertical shaft for recovery of the body, and the body can be easily recovered to the side of the departure shaft through the inside of the laid buried pipe in a reusable state, thereby shortening the construction period and reducing the cost.

The invention provides a robot control system which is provided with a robot body. The robot body comprises a head portion, a neck portion, a main body portion, a chassis portion and a tire portion. The head portion is pivoted to the neck portion, the neck portion is pivoted to the main body portion, the main body portion is arranged on the chassis portion, and the tire portion is arranged below the chassis portion to rotate so as to enable a robot to move. The system comprises a neck operation device, a first lifting adjustment device, a second lifting adjustment device, a stabilizing device and an active suspension device. The neck operation device is used for controlling the head portion of the robot to rotate on the neck portion. The first lifting adjustment device is controlled by the neck operation device to adjust the height of the head portion of the robot and the gravity center position of front-back stretching of the robot. The second lifting adjustment device is controlled by the neck portion operation device to adjust the height of the main body portion of the robot and cooperated with the first lifting adjustment device to synchronously or asynchronously adjust the robot body height of the robot. The stabilizing device is controlled by the neck operation device to stabilize the robot body to keep a horizontal state when the robot moves. The active suspension device is controlled by the neck operation device to enable the height of each wheel suspended to the chassis portion to adapt to ground changes.

There is disclosed a method of producing a silicon monocrystal which comprises preparing a silicon seed crystal having a sharp tip end, and melting down a part of the silicon seed crystal from a tip end to a position having a predetermined thickness, followed by performing a necking operation to form a tapered necking part and a neck portion, and subsequently pulling a monocrystal ingot after increasing a diameter, wherein said part to be melted down is a part from a tip end to a position in which a thickness is twice as large as the diameter of the neck portion to be formed or more; said necking operation is performed in such a way that a tapered necking part is formed at an early stage by pulling a crystal with gradually decreasing the diameter to a minimum diameter of 5 mm or more, and then a neck portion is formed, subsequently the monocrystal ingot is pulled with increasing a diameter. There can be provided a method of producing a silicon monocrystal ingot which enables growing of monocrystal ingot without lowering rate of success in making a crystal dislocation free in the case that a thick neck is formed, and thereby improves productivity of a heavy silicon monocrystal having a large diameter.

The invention relates to medical apparatuses and instruments, in particular to a pressure dressing device used after a thyroid operation. The pressure dressing device used after a neck operation comprises a fixed belt, a support frame board, an H-shaped pressure board, a pressure water sac (comprises an elastic ball sac, a pressure gage, a water injection joint and a pipeline of the water injection joint). In time of using the pressure dressing device used after the neck operation to dress, firstly, a cutting opening is dressed conventionally, and a negative pressure drainage pipe (drainage bar) is connected. The pressure dressing device is fixed on the neck through the support frame plate from rear to front, and meanwhile, the positions of the pressure board and the water sac are adjusted so that the center of the pressure dressing device directs at the center of area needing oppressing. The pressure gage is observed simultaneously when the water injection joint injects water so as to enable pressure of a wound surface (water sac) of the neck to be adjusted within a safe range required by an operator. The pressure dressing device used after the thyroid operation has the advantages of accurately balancing the wound surface needing oppressing after the oppressing operation, and oppressing on adjacent portions, especially on tracheas is avoided. Therefore, under the condition that the problem of oppression after the neck operation is solved, respiratory function of a patient is prevented from being affected and discomfort of the patient after pressure dressing after the operation is greatly relieved.

There is disclosed a method of manufacturing a silicon monocrystal in accordance with the Czochralski method in which a seed crystal is brought into contact with silicon melt and is then slowly pulled while being rotated in order to grow a silicon monocrystalline ingot below the seed crystal. In the method, there is used a seed crystal whose a tip end to be brought into contact with the silicon melt has a sharp-pointed shape or a truncation thereof. The tip end of the seed crystal is gently brought into contact with the silicon melt, and the seed crystal is then lowered at a low speed in order to melt the tip end portion of the seed crystal until the thickness of the tip portion increases to a desired value. Subsequently, the seed crystal is pulled slowly in order to grow a silicon monocrystalline ingot having a desired diameter without performance of a necking operation. During the growth of the silicon monocrystalline ingot, a part of the crystal is mechanically held. The method completely prevents falling of a monocrystalline ingot being grown which would otherwise occur due to the increased diameter and weight of the ingot.

The invention discloses a multifunctional medical pillow used after fracture of cervical vertebrae and neck operation. The multifunctional medical pillow comprises a base, wherein a neck pillow plateand a headrest plate are slidingly matched at the upper end of the base, a neck pillow and a headrest are fixed to the neck pillow plate and the headrest plate respectively through hook-and-loop fasteners, a neck pillow is connected with an air bag with a pressure relief valve and is inflated and deflated through the air bag and the pressure relief valve, and two sides of the base are also symmetrically provided with two limiting pillow connecting devices. The multifunctional medical pillow comprises square holes symmetrically formed in two sides of the base, sliding tubes penetrate into and are fixed in the holes, sliding plates are slidingly matched in the sliding tubes, the ends, extending out of the sliding tubes, of the sliding plates are vertically and upwards provided with supporting rods, the upper ends of the supporting rods are provided with flower type counter bores, auxiliary supporting rods are matched in the counter bores, the ends, extending out of the flower type counter bores, of the auxiliary supporting rods extend towards the sides to be provided with connecting rods, the other end of each connecting rod is provided with a pillow covering block in an oval shape,and the pillow covering blocks are sleeved with limiting pillows.

The invention relates to a device for necking a grooved self-locking nut. Raised press claws which are arranged on the circumference of a columnar main body apply extrusion forces at the part of the bottom of a necking groove, which is close to the center of the grooved self-locking nut, to enable the connecting end of the grooved self-locking nut to turn towards the groove mouth end in the radial direction of the grooved self-locking nut, so that the inner bore of the connecting end of the grooved self-locking nut turn is machined to be a tapered hole structure, that is, the internal thread of the connecting end of the grooved self-locking nut turn has a self-locking structure. The device solves the problem that in the prior art, the necking operation of a grooved self-locking nut free of internal thread at the groove part is difficult, and the self-locking structure is not liable to crack during the use of the grooved self-locking nut, so that the service life of the grooved self-locking nut is increased, and the service performance of the grooved self-locking nut is improved.

The invention discloses a preparation method for a vessel intubation tube model of femoral artery and/or femoral vein of a mouse. The preparation method comprises the following steps: manufacturing a hose mould, manufacturing a J-shaped hose, performing a neck operation, performing a groin operation, mounting and fixing the J-shaped hose, and the like, specifically, bending a copper tube into a J shape; arranging a gap outside a bent part; after soaking a polyethylene conduit into hot sesame oil, immediately stretching, thereby obtaining a polyethylene conduit section; inserting the polyethylene conduit section into the hose mould; and soaking the bent part of the hose mould into water at 80 DEG C, and then cooling, and pulling out, thereby obtaining the J-shaped hose. The J-shaped hose is fixed at two parts of the groin and the neck of the mouse during an operation process, the motion range of the mouse is smaller, and the vessel intubation tube model cannot be separated when the mouse is clear-headed, so that the wide-source and low-cost mouse is taken as an experimental animal, the preparation method provided by the invention has the advantages that the changes in physiology, pathology and pharmacology of the mouse are continuously and dynamically observed and researched under the total clear-headed and free-acting states of the animal, the research parameter amplitude is small and the research result is better.

The invention relates to the field of steel pipe forming equipment. steel pipe flaring and necking equipment comprises a rack, a feeding device, a clamping device and a flaring and necking device; theclamping device and the flaring and necking device are arranged on the rack; the feeding device is connected with the clamping device, and the feeding device is used for feeding a to-be-processed steel pipe and conveying the flared or necked steel pipe on the clamping device out; the clamping device is used for clamping and fixing the to-be-processed steel pipe conveyed by the feeding device; andthe flaring and necking device performs flaring or necking operation on the steel pipe on the clamping device. The steel pipe flaring and necking equipment has the advantages that the loading and unloading of steel pipes can be automatically completed, and the flaring and necking operations are convenient and efficient.

The invention discloses a rotary external guiding and internal fixing configuration configuring device for the femoral head and neck. The configuring device comprises a guide sleeve (1), a rotating sliding block (2), a connecting guide rail (3), a locking nut (4), an installing plate (5) and an indicator pointer (6). A guide needle hole (11) is formed in the center of the guide sleeve (1), a hollow groove (22) is formed in the rotating sliding block (2), the connecting guide rail (3) comprises an arc part (31) and a plane part (32) connected with the arc part (31), the included angle beta between the chord of the arc part (31) and the plane where the plane part (32) is located is 110-140 degrees, a long-striped slotted hole (33) is formed in the arc part (31), and the plane part (32) and the installing plate (5) are fixedly connected. In cooperation with the imaging technology, the configuring device can effectively improve the accuracy of positioning a guide needle in a femoral head and neck operation, and the position of the guide needle can be checked and located noninvasively.

The invention discloses a method for preparing a mouse gastric intubation model. The method is characterized in that the head end of a gastric intubation is enabled to take the shape of an umbrella through the steps of manufacturing of the gastric intubation, neck operation, abdomen operation, installation of the gastric intubation, fixing of the gastric intubation, and the like, and a silica-gel sphere is arranged behind the umbrella-shaped head end, so that the gastric intubation cannot be pulled out from the gastric wall or retract into the stomach; the gastric intubation is firmly fixed with the gastric wall and is fixed on the neck through a twin twisted thin wire and an adhesive tape; when a mouse with poor capacity for action is in a waking state, the mouse gastric intubation model can still be used normally, so that the mouse can be observed continuously and dynamically in the waking state, toxicology, pharmacology and nutriology of drug or nutrient given by the stomach can be studied, and the obtained data is more accurate; and meanwhile, under the condition that the gastric intubation is not divorced from the gastric wall, the mouse gastric intubation model can be used for a long time, so that the trouble that a mouse gastric intubation model needs to be manufactured again when in use can be eliminated.

There are disclosed a silicon seed crystal which is composed of silicon single crystal and used for the Czochralski method, wherein oxygen concentration in the seed crystal is 15 ppma (JEIDA) or less, a silicon seed crystal which is used for the Czochralski method, wherein the silicon seed crystal does not have a straight body, and a method for producing a silicon single crystal by the Czochralski method comprising using said seed crystal, bringing a tip end of the seed crystal into contact with a silicon melt to melt the tip end of the seed crystal, with or without performing necking operation, and growing a silicon single crystal. The method is capable of improving the rate of success in making crystals dislocation-free and the productivity of single crystal rods regardless of the use of necking operation.

The invention provides a retractor for neck surgery. The retractor is stable and reliable in performance and convenient to use and adjust. The retractor is characterized in that an annular slide rail (4) is arranged; a holder (5) on which a hook (6) is mounted is arranged on the annular slide rail, and the holder is formed by pivoting a slide rail clamp splice (11) and a hook clamp splice (14) at the rear end part; a slide rail embedding groove (111) is formed in the slide rail clamp splice, and a secondary pivot (20) connected with a wrench (18) is arranged at the front end part of the slide rail clamp splice; an eccentric column (201) is arranged in the middle part of the second pivot; a moving ejector rob (12) in match with the eccentric column is arranged on the slide rail clamp splice, and a swinging angle locating buckle (17) is also pivoted with the slide rail clamp splice; a locating body in match with the swinging angle locating buckle is arranged on the hook clamp splice (14); a hook embedding groove (141) is formed in the hook clamp splice; a hook locating buckle (15), a cover plate (16) and a cover plate buckle (21) are pivoted with the hook clamp splice. The reactor is used for retracting a neck surgical incision.

The invention discloses a head and neck operation drag hook which is characterized by comprising a base, a sleeve, a rotating sleeve, a threaded column, an adapter, a connecting frame, a supporting arm, a drag hook base, a drag hook body, a wedge and a threaded rotary knob. According to the head and neck operation drag hook, a surgical incision of a patient can be pulled when a head and neck operation is carried out, additional medical workers do not need to assist in pulling the surgical incision, waste of human resources is reduced, and hidden dangers caused by unstable manual pulling are avoided; meanwhile, the use number of the drag hooks can be adjusted according to the actual use condition, and the drag hooks which do not work are contracted in the drag hook base; besides, the height, the horizontal rotation specified angle and the vertical rotation angle of the drag hook can be adjusted according to requirements, the drag hook can move in the horizontal plane, and the drag hook can make a sound when rotating in the horizontal direction to help an operator to control the rotation angle.

The invention discloses an auxiliary headrest for tracheal foreign body removal operation. The auxiliary headrest comprises a bed body, a motor, a supporting plate, a rotating shaft, an inflation pump, a mounting plate, a first air cushion, a pressure sensor, a Y-shaped tube, an angle ruler, a pointer and a second air cushion. The auxiliary headrest for tracheal foreign body removal operation is ingenious in structure, functionally powerful and simple in operation; by use of the auxiliary headrest, a neck operation part of a patient can be exposed to an operation required state to meet requirements of medical personnel while position fixing of the patient's head turning downwards can be realized, a protection effect on the patient's head turning downwards can be effectively improved, and hands, serving as a support, of the medical personnel in historical operation are freed, so that operation effectiveness and progress are guaranteed; in addition, promotion of operation concepts and techniques of the tracheal foreign body removal operation is realized.

A method for producing a silicon single crystal by a Czochralski method comprises bringing a seed crystal into contact with a melt, performing a necking operation, and growing a single crystal ingot, wherein concentration of interstitial oxygen incorporated during the necking operation is 1 ppma (JEIDA) or more. The rate of success in making dislocation-free crystals is improved in a seeding method in which a necking operation is performed.

The invention aims at providing a puncture outfit with a demisting tube guide structure, and the puncture outfit is capable of effectively improving the neck operation efficiency of an endoscope. The puncture outfit comprises the puncture outfit as a main body and the guide structure, wherein the guide structure is communicated end to end; the head and the tail of the guide structure are flush with those of a puncture sheath of the puncture outfit; the guide structure is attached to the puncture sheath to form a whole body. The puncture outfit has the advantages that (1) a demisting tube can be conveniently arranged in the puncture outfit; (2) a good sealing effect can be achieved; (3) the demisting tube can synchronously move along with the endoscope, so that smoke near the endoscope can be removed in time, the monitoring effect of the endoscope is prevented from being interfered, and the operation time is effectively shortened; (4) the puncture outfit is simple in structure and convenient to operate.

The invention discloses a headrest tube necking mould, which comprises a mould body; a necking hole communicating with the outside is formed in the mould body; the hole diameter of the necking hole is sequentially reduced from outside to inside, and the inner wall of the necking hole is a concave arc surface. The hole diameter of the outer end of the necking hole is d; the inner wall of the necking hole is divided into three arc surface sections which are tangential sequentially along a hole center line; any plane which passes through along the hole center line is crossed with the inner wall of the necking hole, so that a crossed curve can be obtained; the circular-arc radius of the outer side section of the crossed curve is Ra, and the arc length of the outer side section is La; the circular-arc radius of the middle section is Rb and the arc length of the middle section is Lb; the circular-arc radius of the inner side section is Rc and arc length of the inner side section is Lc; Ra:Rb:Rc is equal to (18-22) to (5-8) to (1.5-3); and La:Lb:Lc is equal to (7-8): (9-10):(2-4); and Ra is equal to (1.3-1.5)d. With the adoption of the headrest tube necking mould disclosed by the invention, a necking rate of the tube end of a headrest tube can be 50% or higher once, multi-time necking operation is not needed, the surface at the necking hole of the headrest tube is smooth and free of folds, and the forming quality for the tube end of the headrest tube is high.

The invention discloses an automatic indentation necking system, and relates to the technical field of automation. The system comprises a necking machine, hydraulic oil pipes and a hydraulic station,wherein the necking machine is driven by a traditional hydraulic cylinder type power source; the necking machine adopts a piston and piston rod structure to drive a top cylinder; the top cylinder andan indentation knife are matched through an inclined plane to realize relative movement, so that the force in the vertical direction is converted into the extrusion force of the indentation knife to the center, and indentation necking operation on a structure to be necked arranged in the center is realized. The system is simple in operation and easy to realize, can realize effective and reliable connection among components without introducing other connection accessories, and has very important significance for connection among components in a device with compact structure.

The invention provides a machining method of a throttling pressure-reducing pipeline, a throttling pressure-reducing device and a refrigerator. The machining method of the throttling pressure-reducing pipeline includes the steps that after a connecting pipe, a filtering portion and a first throttling pipe which communicate in sequence are formed through an integrated forming process, a second throttling pipe is formed between the filtering portion and the first throttling pipe through stretching operation; and after a filter net assembly and molecular sieves are put in the filtering portion, the filter net assembly and the molecular sieves are inhibited from being discharged to the connecting pipe through necking operation, and machining of the throttling pressure-reducing pipeline is finished. By means of the technical scheme, the machined and formed throttling pressure-reducing pipeline is of an integrated structure, the purpose of integrating filtering with throttling and pressure reducing is achieved, and therefore the service life of the throttling pressure-reducing pipeline is prolonged.

The invention relates to an external traditional Chinese medicine preparation for promoting quick healing of wounds and leaving no scar trace and a preparation method thereof, and belongs to the field of traditional Chinese medicines. The external traditional Chinese medicine preparation can be used for all large, small and deep wounds at the body surface, such as wounds after extrathyroidal neck operation, wounds after cesarean section, wounds after face and whole body reshaping, wounds after cancer operation, scald burns, knife and vehicle wounds, and suppuration wounds. The external traditional Chinese medicine preparation has the advantages that the wound healing time is short, the scar trace is not left, the injection and medicine are not needed, the simplicity in use is realized, and the medical cost is greatly reduced; the total 732 cases of difficult-treating type wounds are healed in clinical application in 20 years, the wounds can be quickly healed, the scar trace is not left, the sterile suturing wound can be healed after 6 to 7 days in large clinical operation, and the trace is removed after 15 days; for the serious wound of muscle which ulcerates and suppurates to bone membrane and is not healed after more than 2 months, the wound can be completely healed after 10 days; the 0.8cm broken finger can be healed after 10 days, the finger length is restored after 25 days, and any trace is not left; the therapy effect is obvious, the healing rate is 100%, and the external traditional Chinese medicine preparation is suitable for popularizing.

The invention relates to a neck operation assisting device which comprises a box body, a neck support and a neck support adjusting mechanism, at least part of the neck support adjusting mechanism is arranged in the box body, and the neck support is arranged at the upper end of the box body and connected with the neck support adjusting mechanism. The neck collar adjusting mechanism is used for driving the neck collar to move in the up-down direction of the box body and the front-back direction of the box body so as to adjust the spatial position of the neck collar. The auxiliary device for the neck operation is convenient to adjust, good in using effect, suitable for different patients and good in applicability.