38results about How to "Avoid affecting the effect of surgery" patented technology

The invention relates to a laser scalpel, and particularly relates to a laser scalpel with continuously adjustable out-of-focus distance for laser operations and laser cosmetic surgeries. The laser scalpel comprises a scalpel body and an adjusting lens barrel, wherein the adjusting lens barrel can be embedded into the cavity of the scalpel body in an axially sliding way and is internally provided with a focusing lens; an out-of-focus adjusting rotary barrel is sleeved on the scalpel body and is adjustably connected with the adjusting lens barrel. By virtue of the adjusting lens barrel and the out-of-focus adjusting rotary barrel, the continuous adjustability of laser focus, diameter and energy density is achieved, and the problem that the laser scalpel needs to be replaced on occasions with different requirements is solved.

The invention belongs to the technical field of medical beds, in particular to a multifunctional operating bed for bone and joint surgery. The operating bed has a single function and needs the patient to move to the nursing bed after the operation. The problem of secondary damage is likely to be caused. The following plan is proposed, including the main bed board, the right side of the main bed board is welded with a headboard, the left side of the main bed board is welded with a footboard, and the main bed board includes an auxiliary bed board and a turning board A first hinge is fixed on one side outer wall of the auxiliary bed board by bolts, and the auxiliary bed board is connected with the turning board through the first hinge. The invention can massage the patient before the operation, so that the patient can relax, avoid the effect of the patient's tension from affecting the operation effect, help the patient to turn over and adjust the angle of lying down during the operation, and avoid the injury caused by the manual turn over during the operation. Moreover, it saves time and effort, can help patients stretch and correct bones, enriches the functionality of the device, and is easy to operate, high in safety, and has multiple functions.

The invention relates to a water cooling structure of laser surgical instruments. The water cooling structure comprises a circulatory seat, an outer pipe, an inner pipe, a circulatory pump, an outer circulatory interlayer is arranged between the inner wall of the outer pipe and the outer wall of the inner pipe, a light-guide optical fiber is inserted in the inner pipe, an inner circulatory interlayer is arranged between the outer wall of the light-guide optical fiber and the inner wall of the inner pipe, a liquid return cavity and a liquid outlet cavity are arranged in the circulatory seat; the outer pipe is communicated with the liquid outlet cavity; the liquid return cavity is communicated with the inner pipe; the circulatory seat is provided with a liquid return interface; the circulatory seat is provided with a liquid outlet interface; the outlet and the inlet of the circulatory pump are respectively communicated with the liquid outlet interface and the liquid return interface; a lens is arranged at the front end of the outer pipe; the head of the inner tube is positioned in the outer tube. In the water cooling structure of laser surgical instruments, the inner circulatory interlayer and the outer circulatory interlayer are formed by the outer pipe and the inner pipe sleeved outside the light-guide optical fiber, the cooling liquid is controlled through the circulatory pumpto circulate between the inner circulatory interlayer and the outer circulatory interlayer, the heat generated on the light-guide optical fiber and the lens is taken away, the light-guide optical fiber and the lens are prevented from being overheated, the structure is simple, the volume is small, and the light-guide optical fiber can move forwards and backwards to adjust the irradiation intensityof the lens.

The invention discloses an integral needling-drilling encephalic hematoma puncture drainage device. The integral needling-drilling encephalic hematoma puncture drainage device is characterized by comprising a T-joint, a drilling body, a limiting device, a cleaning rod, a drainage tube, a liquid inlet needle-shaped channel and a drilling sleeve of which a perforated cap limiter sleeves the T-joint,wherein the drilling body is inserted into the drilling sleeve of the T joint, and is fixed in cooperation with a groove in the drilling body sleeve through a lug I on the side face of the T-joint. The integral needling-drilling encephalic hematoma puncture drainage device has the beneficial effects that: a self-destruction function can be realized after the completion of skull drilling, so thatthe integral needling-drilling encephalic hematoma puncture drainage device cannot be reused from the structure, the effect of operation be affected by the pollution of a drill bit is avoided; moreover, liquid hematoma can be sucked and drained; saline is injected into a hematoma cavity through the drainage tube on a perforated cap in order to dilute and drain viscous hematoma; a hematoma liquefaction agent is injected into the remaining solid hematoma through an injection needle device channel until intracranial hematoma is removed.

The invention discloses a waist supporting pad for the general surgery department, and belongs to the technical field of medical equipment. The waist supporting pad comprises a first rubber pad, a rubber partition plate, an air pad, a second rubber pad and fixing plates, wherein the air pad is arranged at the top of the first rubber pad, the rubber partition plate is arranged at the top of the airpad, the second rubber pad is arranged at the top of the rubber partition plate, two fixing blocks are arranged at the top of the rubber partition plate and located on the two sides of the second rubber pad respectively, grooves are formed in the fixing blocks, the fixing plates are symmetrically arranged on the two sides of the upper part of the second rubber pad and are perpendicular to the fixing blocks, sliding blocks are arranged at the two ends of the bottom of each fixing plate, the fixing plates are slidingly connected with the grooves through the sliding blocks, an inflating pipe isarranged on one side of the air pad, an air bag is arranged at the movable end of the inflating pipe, and a deflating port is formed in the air pad. The waist supporting pad for the general surgery department is adjustable in height, comfortable to use and capable of fixing the body posture, thereby having high practicability.

The invention relates to a bone cement stirring injector. The bone cement stirring injector comprises a premixing barrel, a push injection device, an injection head and a stirring device. A premixing cavity is formed in the premixing barrel. A first opening communicated with the premixing cavity is formed in the first end of the premixing barrel, and a second opening communicated with the premixing cavity is formed in the second end of the premixing barrel. The push injection device comprises a push injection rod. The first end of the push injection rod is arranged in the premixing barrel and extends into the premixing cavity through the second opening. The injection head comprises an injection cover and an injection nozzle which are connected. An injection hole is formed in the injection nozzle, and an injection through hole communicated with the injection hole is formed in the injection cover. The stirring device comprises a stirring cover, a stirring shaft and a stirring head. The stirring shaft is installed on the stirring cover in a rotary mode, and the stirring head is connected to one end of the stirring shaft. When the stirring cover is installed at the first opening of the premixing barrel, the stirring head extends into the premixing cavity through the first opening; when the injection cover is installed at the first opening of the premixing barrel, the injection hole is communicated with the premixing cavity. Use is convenient, and the operation linkage is good.

The invention discloses a special protective device for oral clinical tooth preparation. The special protective device comprises an expansion unit, a tongue protection unit and a fixing unit, whereinthe expansion unit comprises two motors, two fixed blocks, bidirectional lead screws, two movable blocks, supporting rods and a fixing frame; the two fixed blocks correspond to each other left and right; a groove is formed in the inner side surface of each of the two fixed blocks; each bidirectional lead screw is rotationally connected to the inside of the corresponding groove; threads at the twoends of each bidirectional lead screw are opposite; the two motors are arranged at the top ends of the two fixed blocks respectively; output shafts of the two motors are connected with the top ends ofthe bidirectional lead screws; the two movable blocks are in sliding connection with the grooves in the inner side surfaces of the fixed blocks respectively; screw holes in the side surfaces of the two movable blocks are in threaded connection with the upper ends and the lower ends of the bidirectional lead screws respectively; and each supporting rod is arranged on the inner side surface of thecorresponding movable block. The special protective device for oral clinical tooth preparation is convenient to use and simple to operate, effectively protects a tongue body and facilitates an operation of a doctor.

The invention provides an occluding sacculus structure. The occluding sacculus structure comprises a sacculus and a sacculus catheter. The sacculus is arranged at the front end of the sacculus catheter, the surface of the balloon is provided with a plurality of electrodes, and the sacculus catheter is provided with a passage pipeline and an electrode connecting wire bundle, wherein the passage pipeline is communicated with the sacculus and the electrode connecting wire bundle is used for connecting the electrodes correspondingly. In the occluding sacculus structure provided by the present invention, The electrode on the surface of the balloon can collect the potential change of the pulmonary vein orifice, and the sacculus can occlude the blood at the distal end of the pulmonary vein orifice, thus effectively avoiding the blood flow scouring and affecting the corresponding surgical effect, so that the pulmonary vein can be stabilized during the operation, and the success rate of the operation can be improved.

The invention discloses a medical orthopedic trauma surface disinfection spraying device and a spraying method. The medical orthopedic trauma surface disinfection spraying device comprises a base; a support which is arranged on the rear side of the right end of the base; a PLC which is arranged at the top of the bracket; four universal wheels which are fixedly mounted at the four corners of the bottom of the base respectively; a lifting mechanism which is arranged at the top of the base and is electrically connected with the PLC; a lifting platform which is arranged at the top end of the lifting mechanism. According to the medical orthopedic trauma surface disinfection spraying device and spraying method, the height of the lifting platform can be adjusted according to the height of a patient or an injured part. The body angle of the patient needs to be adjusted according to the height of the platform, and medical staff can treat the affected part more conveniently. According to the structure, a plurality of medical workers do not need to cooperate for operation, and a patient can be better fixed, so that the surgical effect is not affected by secondary injury of a patient, and time and labor are saved.

The invention relates to the technical field of medical instruments, in particular to an auxiliary device for a surgical robot. The auxiliary device comprises a positioning assembly, a first adjustment assembly which comprises a first swinging unit and a first lifting unit, and a supporting base, wherein the first swinging unit is rotatably connected with a free end of the positioning assembly andis used for driving the first lifting unit to be swung; and the supporting base is connected with the first lifting unit, the first lifting unit is used for driving the supporting base to be moved, and the surgical robot is supported on the support base. Through arrangement of the first adjustment assembly based on the positioning assembly, the positioning assembly is connected with the supporting base through the first adjustment assembly, and the supporting base is used for supporting the surgical robot; and after the positioning assembly realizes positioning, the surgical robot arranged onthe positioning assembly can be further flexibly moved, so that the the surgical robot can flexibly be moved to a required position according to operation intention of a doctor. According to the auxiliary device for the surgical robot disclosed by the invention, the problem that the surgical robot in the prior art is heavier so as not to provide convenience for a surgery doctor to operate for a long time is solved.

The invention provides a cryoablation system. The cryoablation system comprises a first purging part, a second purging part, a first one-way valve, drying equipment, an ablation needle connecting part and a heat exchange part, the first end of the first one-way valve is used for being connected with an air source, the second end of the first one-way valve is connected with the second end of the drying equipment, the second end of the drying equipment is connected with the first end of the heat exchange part, the second end of the heat exchange part is connected with the ablation needle connecting part, and the ablation needle connecting part is used for being externally connected with an ablation needle; the first end of the first purging part is connected between the drying equipment and the heat exchange part, and the second end of the first purging part is connected with the ablation needle connecting part; the first end of the second purging part is connected between the heat exchange part and the ablation needle connecting part, and the second end of the second purging part is connected to a recovery device or the atmosphere; furthermore, the problem of ice blockage of a system pipeline in the using process is solved.

The disposable adjustable laparoscopic hand aid mainly consists of an arm barrel, an arm strap, an outer ring, an outer ring caliber adjustment device, a spreading device, an inner ring, an inner ring caliber adjustment device and gloves. The arm barrel is fixed on On the outer side of the outer ring, there is an arm strap at the top; the inner ring is fixed on the inner side of the outer ring; between the inner and outer rings is a cylindrical membrane; the inner and outer rings are elastic rings, and are equipped with inner and outer ring diameter adjustment devices; Turn over and connect to the outer ring. The disposable laparoscopic adjustable hand aid is provided with elastic inner and outer rings and an inner and outer ring caliber adjustment device, which can cooperate with each other to adjust the inner and outer ring calibers. Therefore, the caliber of the inner and outer rings of the hand aid can be adjusted according to factors such as the operating range, surrounding organs, surgical incision, operator's arm and palm, to improve surgical operability; the mouth of the glove is everted and fixed to the outer ring to meet the sealing requirements and Sterile requirements; the expansion device can assist in exposing the target organs and reduce the interference of surrounding organs; it can protect the abdominal wall incision and reduce the wear and tear on the incision.

The invention relates to an auxiliary device for micro vascular suture. The device comprises a pedestal, a universal rod and a bracket, wherein the universal rod is connected to the pedestal; the bracket is connected to the universal rod, can move in the three-dimensional direction along with the universal rod and comprises a plurality of winding parts and at least one pair of thread clamping parts; the winding parts can hook suture threads; the thread clamping parts are used for clamping the suture threads; the linear distance between the thread clamping parts is greater than the linear distance between any two winding parts. Due to the fact that the auxiliary device for micro vascular suture is provided with the winding parts and the thread clamping parts, the winding parts can hook the micro suture threads, overlapping or intertwining of the suture threads is avoided, and the thread clamping parts can clamp the suture threads or one end of a thread knot to fix blood vessels, damage to a blood vessel wall or a blood vessel inner membrane by unstable fixation is avoided.

The invention relates to a bone cement mixing syringe, comprising: a premixing cylinder, a premixing chamber is arranged on the premixing cylinder, a first opening communicating with the premixing chamber is arranged at the first end of the premixing cylinder, and the premixing cylinder The second end is provided with the second opening that communicates with the premixing cavity; The injection device, the injection device comprises an injection rod, and the first end of the injection rod is arranged in the premixing cylinder, and extends into the premixing cylinder through the second opening. In the cavity; the injection head, the injection head includes a connected injection cover and an injection nozzle, the injection nozzle is provided with an injection hole, and the injection cover is provided with an injection through hole communicating with the injection hole; the stirring device includes a stirring cover, a stirring shaft and The stirring head, the stirring shaft is rotatably installed on the stirring cover, and the stirring head is connected to one end of the stirring shaft; wherein, when the stirring cover is installed at the first opening of the premixing cylinder, the stirring head extends into the premixing chamber through the first opening Inside; when the injection cap is installed at the first opening of the premix cylinder, the injection hole communicates with the premix chamber. Easy to use and good operation connection.

The invention discloses a minimally invasive surgery endoscopic extractor. The extractor comprises an outer cylinder tube, an inner cylinder tube is movably inserted into the outer cylinder tube, anda worm is rotationally connected between the inner walls of the outer cylinder tube; one end of the worm penetrates through the inner walls of the outer cylinder tube and extends to the outside to befixedly connected with a knob; a dial is arranged at the position, on one side of the knob, on the surface of the outer cylinder tube; the worm is meshed with a turbine, and a screw rod is fixedly inserted into an inner ring of the turbine; one end of the screw rod is rotationally connected with the inner walls of the outer cylinder tube, and the other end of the screw rod penetrates through the outer wall of the inner cylinder tube and extends to the inside to be fixedly connected with a limiting block; a first sliding block is in meshed and sleeved connection with the surface of the screw rod; the surface of the first sliding block is fixedly connected with the inner wall of the inner cylinder tube, and second sliding blocks are fixedly connected to the two ends of the outer surface of the inner cylinder tube; a T-shaped rod is inserted into the second sliding blocks. According to the extractor, the turbine, the worm and the dial are arranged, so that situation that the extending portion of a wire ring and an extraction bag are too long and influence the operation effects and efficiency is effectively prevented.

The invention relates to the technical field of medical equipment, and discloses a lower limb fixing device for knee replacement surgery in the orthopedics department, the lower limb fixing device comprises a seat, an adjusting assembly and a fixing assembly, a backrest is fixedly mounted on the left side of the seat, universal wheels are movably connected to the bottom end of the seat, and armrests are fixedly mounted on the front side of the seat; a thigh base plate is fixedly mounted on the right side of the seat, a shank base plate is movably connected to the right side of the thigh base plate, and an adjusting assembly is movably connected into the thigh base plate. According to the lower limb fixing device for the knee joint replacement surgery in the orthopedics department, a telescopic rod is installed on the right side of the bottom end of a thigh base plate, so that the angle between the thigh base plate and a shank base plate is adjusted through cooperation of two guide rods, and the thigh base plate and the shank base plate are connected through a connecting shaft and a ratchet wheel is installed on the outer wall of the connecting shaft; the ratchet wheel is matched with the clamping column, so that the bending angle can be prevented from changing, and the surgical effect is prevented from being influenced.

The invention discloses a surgery operation platform for a livestock veterinarian. The surgery operation platform comprises first slide blocks, a table top, a cranking handle, a first supporting shelf, a first transverse fixing shelf, second slide blocks and a third vertical fixing shelf, wherein table top fixing shelves are welded to the bottom of the table top, second slide grooves are formed inthe two ends of the table top, and limiting grooves are formed in the table top; a first vertical fixing shelf is welded to the end, away from the table top fixing shelves, of the table top, the third vertical fixing shelf is rotatably installed in the first vertical fixing shelf, and the first supporting shelf penetrates through a guide groove and is installed in the first vertical fixing shelf;first threaded holes are formed in second limiting blocks, a second transverse fixing shelf is fixed to the end, away from the second limiting blocks, of the first supporting shelf, and a second supporting shelf is welded to the first transverse fixing shelf. The surgery operation platform for the livestock veterinarian has the advantages of being simple in structure and complete in function, andlivestock can be quickly tied and the heads of the livestock can be separately fixed according to the sizes of the livestock.

The invention provides a brain tumor extractor. The brain tumor extractor is characterized by being made of stainless steel material, and comprises a spoon grip, a spoon handle and a spoon head which are connected in sequence, wherein sucking tubes used for sucking blood are arranged below the spoon grip, the spoon handle and the spoon head, the spoon handle is bent in an arc shape, the opening of the sucking tube on the spoon grip is connected with a negative pressure sucking tube, anti-skidding stripes are arranged on the spoon grip, an LED lamp bulb used for local illumination is mounted on the spoon handle, and a lead connected with the LED lamp bulb is adhered to the negative pressure sucking tube. The brain tumor extractor has the beneficial effects that the structure is simple, the use is convenient, the brain tumor can be taken out easily, meanwhile, the bloody water at the surgical part can be sucked up, so that the phenomenon that the surgical effects are influenced by the bloody water is avoided; the lamp bulb can illuminate the surgical part, so that the tumor can be seen clearly during the surgery, and then the surgery is carried out smoothly.

The invention relates to a nipple retraction correction technology, and in particular to a fixing device for post-operation of nipple retraction and a manufacturing method of the fixing device. A sleeve of the fixing device disclosed by the invention is made by using a 3D printing technology after data information of a nipple on the healthy side of a patient is collected, so that the sleeve is more in accordance with the physiological structure of the patient, the sleeve has better external fixing and drawing effects including fixation, continuous drawing, no clamping and no loosening on a nipple on the operation side, and recurrence of nipple retraction is more effectively prevented. The fixing device has a simple structure and simple and convenient fixing operation, can be used to effectively and quickly complete correction fixing operation after a nipple retraction operation, and effectively saves the operation time. According to a supporting platform structure of the fixing device,the fixing device can be better stuck on the surface of a breast of the patient, so that loosening of the fixing device is avoided, and comfort of the patient is improved.

The invention discloses a line drawing device for a craniocerebral operation. The line drawing device comprises a line drawing device box body and a hand grab device which are integrally connected; arc-shaped grooves are formed in the bottom of the hand grab device, and a plurality of cavities are formed in the line drawing device box body; the cavities comprise the inner ruler cavity, the positioning cavity and the pigment cavity which are separated from each other through baffles; long-strip-shaped openings are formed in the surface of the center of an inner ruler, and tie bars are arrangedbetween the long-strip-shaped openings; a cotton thread is fixed into the positioning cavity through an elastic steel wire; a second opening is formed in the tip, on one side of the pigment cavity, ofthe upper end of the line drawing device box body; the cotton thread is fixed into the positioning cavity through the elastic steel wire; and the head end of the cotton thread is connected with a suction cup. Through the left-side inner ruler, an incision of the craniocerebral body surface operation is measured, according to the measured result, the incision of the body surface operation is positioned through automatic inking of the cotton thread, thus accurate positioning is achieved, and the situation that the operation effect is influenced due to the positioning deviation is avoided.

The invention relates to the technical field of hip joints, in particular to a safe area establishing method suitable for hip joint surgery, and solves the technical problems that in the prior art, a doctor arbitrarily intercepts a femoral neck and a femoral head according to personal experience and then implants a metal femoral stem, the metal femoral stem head cannot be consistent with the rotation center position of the original femoral head, and therefore, the problem of great inconvenience caused by the change of the walking posture due to the deviation of the gravity center, the change of gravity distribution and the like after the patient operation is solved. A safe area establishing method suitable for hip joint surgery comprises the steps that a diagonal plane is selected, a large trochanter section is determined, a mechanical arm is introduced to serve as a hip joint medical auxiliary surgical instrument, and a certain reasonable space protection area is determined to serve as a safe area according to the femur of a patient. Compared with cutting by experience of doctors, the method is more scientific, the eversion angle can be kept unchanged as much as possible, and the body gravity center bearing condition of a patient after an operation cannot be greatly changed.

The invention discloses a needle-drill integrated puncture and drainage device for intracranial hematoma. The needle-drill integrated puncture and drainage device for intracranial hematoma is characterized in that it includes a three-way body, a drill body, a stopper, a cleaning rod, a drainage tube, and a liquid inlet needle. The shaped channel and the cap stopper with holes are sleeved on the drill bushing of the tee body, and the drill body is inserted into the drill bushing of the tee body and fixed by matching the protrusion I on the side of the tee body with the groove on the drill body jacket. Beneficial effects of the present invention: the needle-drill integrated intracranial hematoma puncture and drainage device can realize the self-destruct function after drilling the skull, so that the needle-drill integrated intracranial hematoma puncture and drainage device cannot be reused structurally, avoiding It can also suck and drain the liquid hematoma, inject normal saline into the hematoma cavity through the drainage tube on the perforated cap, dilute and drain the viscous hematoma, and drain the remaining solid hematoma with the liquid injection needle The hematoma liquefier was injected into the channel of the device until the intracranial hematoma was cleared.

The embodiment of the invention discloses a multipurpose surgery auxiliary system for clinical application of cardiology department. The multipurpose surgery auxiliary system comprises a track model mounted on a wall, wherein circular tracks are arranged on the track model, multi-degree-of-freedom expansion joints are mounted on the circular tracks, and are mounted in the circular tracks through alinear motor, mounting frames are connected to the multi-degree-of-freedom expansion joints, force direction conduction devices are arranged on the mounting frame, each multi-degree-of-freedom expansion joint comprises a first crankshaft rod and a second crankshaft rod which are connected through a joint driving hinge shaft A, a damping universal joint is connected to the other end of each firstcrankshaft rod through a joint driving hinge shaft B, the damping universal joints are connected to the linear motor assembly, the joint driving hinge shaft A and the joint driving hinge shaft B are electrically connected with the force direction conduction devices, subunits of the multi-degree-of-freedom expansion joints are controlled by parallel driving signals to be in synchronous working, thedegree of freedom for regulating the relative positions of the multi-degree-of-freedom expansion joints is high, and the condition that setting positions of medical devices are conflicted to influence surgery process, is avoided.

Two front wheels and two universal trundles are installed on the lower side of a chassis, the chassis, an upper connecting plate, a lower connecting plate and a triangular frame form a parallelogram structure, the height and pitching angle of the operating bed can be adjusted, the inclination angle of a backrest can also be adjusted, armrests or bandages can be installed on the two sides of a backrest plate according to needs, and the operating bed is convenient to use. The backrest cushion and the backrest plate form a moving pair through the bottom plate, the seat cushion is installed on the seat plate, the backrest cushion does not interfere with the seat cushion when the angle of the backrest changes, the two supporting leg mechanisms are installed on the two sides of the seat plate, the seat cushion and the backrest cushion are both made of soft silica gel materials, a cavity structure in the seat cushion and the backrest cushion is filled with paraffin materials, and a heat exchange pipe is further arranged in the cavity structure. A heating device and a cooling device are integrated in the variable-temperature bin, the variable-temperature bin is communicated with the heat exchange pipes in the cushion and the backrest cushion through four pipelines respectively, and the variable-temperature bin takes a refrigerant as a heat transfer substance to enable paraffin in the cushion and the backrest cushion to be converted between a solid state and a liquid state.

The invention discloses alignment equipment for finger transplantation, which comprises an integral driving device, an adjusting and aligning device, a wrist fixing device, an arm placing table, an arm placing frame and a placing frame supporting upright post, a patient places an arm on the arm placing frame and the arm placing table, and the wrist of the patient is fixed through the wrist fixing device. A doctor puts fingers needing to be aligned into the adjusting and aligning device, position adjustment is conducted through the adjusting and aligning device, power is provided for rotation adjustment of the adjusting and aligning device through the overall driving device, and finally front-back adjustment of the whole adjusting and aligning device is achieved through the integral driving device. The butt joint is accurate, and the labor force is reduced.

The invention discloses a heart valve repairing device, which comprises a forming ring body and a contraction traction line, and is characterized in that the forming ring body comprises at least two metal strips, end part metal tubes arranged at the end parts of the metal strips in a sleeving manner, and joint part metal tubes arranged between the two adjacent metal strips in a sleeving manner; a first traction hole is formed in one end of the metal strip, and a second traction hole is formed in the connecting part metal pipe. And the contraction traction wire is wound on the first traction hole and the second traction hole so as to connect the metal strip and the connecting part metal tube. The two end metal pipes are connected through a buckle assembly. The contraction traction wire is wound on the first traction hole and the second traction hole to connect the metal strip and the connecting part metal pipe, and the two end metal pipes are connected through the buckle assembly to enable the forming ring body to be connected end to end to form the annular structure, so that compared with a rigid folding type forming ring structure, the conveying diameter is smaller, and the conveying efficiency is improved. The overall strength is slightly lower than that of a rigid folding structure, but the required supporting strength can be met.

The invention discloses a fixed pressure-reducing mattress special for interventional surgery, which comprises a mattress body, one end of the mattress body is fixedly connected with a mattress head, the mattress head is provided with a head fixing mechanism, and the top surface of the mattress body is respectively provided with a shoulder and back pressure-reducing water bag and a hip pressure-reducing water bag. The top of the mattress body is fixedly connected with a pair of forearm fixing blocks, a wrist fixing block, a knee joint fixing block and an ankle joint fixing block. The pressure reducing device has the characteristics of reasonable structural design, firm fixation, good pressure reducing effect, wide application range and the like.

The invention discloses a surgical plate-type distracter, which comprises a first plate, a second plate, a first support member and a second support member, wherein a plurality of first adjusting latches, which extend towards the edge part of a first side and are toward the edge part of the first side, are arranged on the inner walls of the first plate and the second plate; a plurality of second adjusting latches, which extend towards the edge part of a second side and are toward the edge part of the second side, are arranged on the inner walls of the first plate and the second plate; the first adjusting latches and the second adjusting latches of the first plate and the second plate correspond to one another respectively; and each of the first support member and the second support member comprises a first support end and a second support end. The surgical site can be conveniently distracted, so that the surgical operation is facilitated; the surgical operation difficulty is lowered; and the surgical quality is improved.