346results about How to "Avoid oppression" patented technology

The utility model relates to the technical field of medical instruments, in particular to a urethral catheterization device which comprises a urethral catheter and a storage assembly, the storage assembly comprises a hook, a diversion bag and a urine receiving bag, the end, away from the diversion bag, of the urethral catheter is inserted into the bladder from the urethra to guide urine, and the drained urine is guided into the diversion bag through the urethral catheter to be stored. When the urine in the flow guide bag reaches a certain amount and needs to be poured out, the urination opening of the flow guide bag is opened, the urine is guided into the urine receiving bag, after the urine in the flow guide bag is guided out, the urination opening is closed, the urine receiving bag is taken down from the flow guide bag, and the urine is discharged and poured out through the urine receiving bag discharging opening. Urine cannot flow out when catheterization is performed or the urine receiving bag is taken down, and the problem that residual urine flows out to cause environmental pollution when the urine in the liquid storage bag is detached and poured out in an existing catheterization device is solved.

The utility model relates to the technical field of medical instruments, in particular to a pacemaker post-operation pressurization hemostasis device which comprises a fixing band, an adsorption component and a pressurization component. The adsorption component comprises an adsorption cylinder, a sealing film is arranged in the adsorption cylinder, a one-way air valve is further arranged on the adsorption cylinder, air in the adsorption cylinder is pumped out through the one-way air valve, a negative pressure environment can be formed in the adsorption cylinder, and the pressurization component is arranged at the top of the adsorption cylinder and used for applying compression force to the sealing film. Air in the adsorption cylinder is pumped out through the one-way air valve, so that a negative pressure environment is formed in the adsorption cylinder, and skin at a wound part of a human body shrinks towards the interior of the adsorption cylinder under the action of negative pressure suction force, so that horizontal component force which is generated by the pressurizing component and deviates from the direction of the wound can be counteracted when the wound is subjected to compression nursing; therefore, the skin tension of the wound part is effectively reduced, and the healing effect of the wound after the cardiac pacemaker operation is improved.

The utility model provides an infant enterostomy plugging device, and belongs to the technical field of medical instruments. The infant enterostomy plugging device comprises a sealing plate, a hollow pipe is fixed to the middle of the lower end face of the sealing plate, a pipe opening communicated with the hollow pipe is formed in the middle of the upper end face of the sealing plate, the pipe opening is matched with a sealing cover, and an expansion balloon is arranged in the middle of the hollow pipe in a surrounding mode. A water injection pipe extending into the inner wall of the hollow pipe is installed on the upper end face of the sealing plate, and the lower end of the water injection pipe is communicated with the expansion balloon. One end of the sealing cover is connected with a soft belt, and the soft belt is fixed to the edge of the upper end face of the sealing plate. The enterostomy bag can be suitable for enterostomy with different sizes, is flexible to use, can accommodate the intestine body exposed out of the enterostomy to avoid compression, and is beneficial to improving the nursing management effect of the enterostomy.

The invention relates to the technical field of rheumatoid arthritis examination, and discloses a rheumatoid arthritis examination stabilizing device, which comprises a main plate, two groups of side plates, a main supporting seat arranged at the top of the main plate, and side supporting seats arranged at the tops of the side plates, the adjusting part is arranged between the main plate and the side plate, the fixing part is arranged on the side plate, and the relieving part is arranged on the main plate. According to the stabilizing device for rheumatoid arthritis examination, the two sets of side plates and the main plate can be adjusted according to the bending comfort degree of knee joints of a patient, it can be ensured that the device is tightly attached to the legs of the patient, unnecessary compression or discomfort is avoided, the examination process is more humanized through personalized adjustment, and the examination efficiency is improved. And the angle of the stabilizing device is adjusted, so that it can be ensured that the device is tightly attached to the legs of the patient, and unnecessary compression or discomfort is avoided.

The invention discloses a rotatable closed type sputum suction tube. The closed sputum suction tube comprises a sputum suction tube assembly and a three-way connector connected with the sputum suction tube assembly, the sputum suction tube assembly comprises a sputum suction tube and a thin film protective sleeve arranged outside the sputum suction tube in a sleeving mode, and the three-way connector is provided with a trachea cannula connector, a breathing machine connector and a sputum suction tube connector. The sputum suction pipe is connected with the sputum suction pipe connector through the sputum suction pipe first sleeve connector, and one part of the sputum suction pipe is rotationally connected with the sputum suction pipe first sleeve connector. A rotatable one-way valve is further arranged in the first sleeve connector of the sputum suction pipe, one end of a valve channel of the rotatable one-way valve is fixedly connected with the sputum suction pipe, and a pipeline of the sputum suction pipe is communicated with the valve channel of the rotatable one-way valve. According to the sputum suction tube, the rotatable design is adopted, the position of the tube can be adjusted according to needs, the sputum suction tube is more suitable for a tracheostomy catheter of a patient, the stability of a breathing machine loop is not affected, and meanwhile the problem that the patient feels uncomfortable due to improper height and angle is solved.

The utility model relates to the technical field of teeth, in particular to an appliance suitable for maxillary anterior teeth. Comprising an embedded tooth, a mesio-middle adjacent tooth and two casting belt rings, the embedded tooth is located on the inner side of the bottom of the mesio-middle adjacent tooth, the casting belt rings are located at the two ends of one side of the embedded tooth, a Nand palate support is welded between the two casting belt rings, double-tube buccal tubes are welded to the ends, away from each other, of the two casting belt rings, and a loop is welded to the bottom of each double-tube buccal tube. And a bending piece is fixed on the inner side of the Nand palate support. According to the utility model, maxillary anterior teeth which are impacted on the lip side and are closer to adjacent teeth can be drawn during use; meanwhile, the positioning single-curved labial arch is adopted to firstly draw the embedded tooth towards the labial side, direct traction and force application are carried out, the oral mucosa is prevented from being pressed, the positioning single-curved labial arch is connected with the single-curved labial arch in a welded mode through a loop, the loop part is located at the position of the maxillary premolar, and after the embedded tooth is basically exposed out of the labial mucosa, the embedded tooth can be continuously drawn backwards and downwards until the embedded tooth is basically drawn in place.

The utility model relates to the technical field of safety belts, and provides a spring bolt assembly of a safety belt and a safety belt assembly. The spring bolt assembly of the safety belt comprises a spring bolt provided with a first notch and a supporting plate protruding relative to the first notch; the cam part is movably contained in the cavity of the spring bolt and located at the first notch; the elastic piece is contained in the cavity of the spring bolt and elastically abuts against the cam piece; the cam part can rotate to abut against the supporting plate and can be pushed by the elastic part to reset so as to loosen the supporting plate. According to the safety belt locking device, dynamic locking of the safety belt can be achieved through matching of the spring bolt, the cam piece and the elastic piece, the situation that the safety of passengers is threatened due to the fact that the shoulder belt part / the waist belt part of the safety belt is uncontrollably pulled when a vehicle collides is avoided, and stress of the waist belt part can be adjusted under the normal driving working condition so that the safety belt can meet the use requirement.

The invention discloses kidney puncture fistulization drainage equipment, and relates to the technical field of medical instruments, the kidney puncture fistulization drainage equipment comprises a drainage tube and further comprises a fixing assembly arranged outside the drainage tube, the fixing assembly comprises a mounting ring, the drainage tube is sleeved with the mounting ring, and a plurality of fixing rods are fixedly mounted at the top of the mounting ring; a plurality of fixing rods are fixedly mounted on the mounting ring, fixing adhesive tapes are wound outside the fixing rods, a plurality of fixing plates are fixedly mounted outside the mounting ring, guide rods are symmetrically and slidably connected to the upper portions of the interiors of the fixing plates, moving plates are fixedly mounted at one ends of the two guide rods, and rollers are rotatably connected between the two fixing frames in each group; according to the drainage tube fixing device, the fixing rods are arranged, so that when the drainage tube is fixed, the fixing rods can be reliably fixed through the fixing adhesive tape, the drainage tube cannot be pressed after the fixing rods are fixed, deformation of the drainage tube can be avoided, discomfort of a patient cannot be caused, and practicability is improved.

The utility model relates to a 1.5 V lithium battery with a charging interface, the 1.5 V lithium battery comprises a PCB, a plastic middle frame, a winding cell assembly, an insulating sheath and a metal shell, the metal shell is provided with a rolling groove and a spinning edge, the rolling groove and the spinning edge are used for fixing the winding cell assembly and the plastic middle frame, and the PCB is clamped in the plastic middle frame; a positive electrode cap is arranged on the upper surface of the PCB, a charging interface and a positive electrode adapter plate are arranged on the lower surface of the PCB, a common negative electrode is arranged on the upper surface of the PCB and electrically connected with the metal shell, a positive electrode lug of the winding battery cell assembly is electrically connected with the positive electrode adapter plate, and a negative electrode lug is electrically connected with the metal shell. The metal shell is an integral body, is good in strength, has a good fixing effect on the winding battery core assembly and the plastic middle frame, does not need to be welded, and is lower in processing difficulty and cost than welding. The PCB is clamped in the plastic middle frame, so that the PCB cannot be easily separated from the plastic middle frame, the PCB is prevented from being pressed when a spinning edge is processed, the PCB can be isolated from the metal shell, and short circuit is avoided.

The fresh cut flower storage device can prevent flowers from being squeezed in the transportation process. The fresh cut flower storage device capable of preventing the flowers from being squeezed in the transportation process comprises a base; the supporting frame is fixedly mounted at the top of the base; the multiple limiting plates are fixedly mounted on the sides, close to each other, of the two supporting frames correspondingly; the plurality of clamping plates are respectively mounted among the plurality of limiting plates in a sliding manner; and the placing frame is fixedly arranged among the plurality of clamping plates. The fresh cut flower storage device capable of preventing the flowers from being squeezed in the transportation process has the advantages that the structure is simple, fresh cut flowers can be stored in a separated mode so that squeezing damage caused by stacking of the fresh cut flowers can be prevented, and meanwhile the fresh cut flowers can be supported so that petals can be prevented from falling off due to pressing of the self weight.

The utility model relates to the field of drainage equipment, in particular to a tensile drainage hose which comprises a hose body. When the hose body is pulled, the sliding block can correspondingly move in the sliding groove, the maximum stretching degree of the hose body can be limited under the cooperation of the sliding block and the sliding groove, damage caused by excessive stretching of the hose body is avoided, and the hose body is prevented from being damaged. The tensile property of the hose body and the operation efficiency of the drainage system are also improved; when the sliding block moves in the sliding groove, the compression spring and the telescopic rod can conduct corresponding stretching movement, after stretching of the hose body is finished, the telescopic rod can be driven to contract under the elastic force effect of the compression spring, the hose body can be reset when the telescopic rod contracts, and deformation and damage of the hose body in the stretching movement are avoided; the service life of the hose body is prolonged, and the tensile property of the hose body and the operation efficiency of a drainage system are also improved.

The invention belongs to the field of blood vessel puncture, and discloses a blood vessel leakage hemostasis device convenient for adjusting local pressure, which comprises an equipment terminal, one side of the equipment terminal is connected with a cuff structure, and a plurality of pressure air bags are uniformly arranged in the cuff structure; a plurality of adjusting devices communicated with the pressure air bag in a matched mode are fixedly arranged on the outer side of the cuff structure, and a pulse oximeter is movably arranged at one end of the cuff structure. The invention solves the problems that in the prior art, gauze is usually used for pressurizing, binding and stopping bleeding, but the method has many defects that the pressure is difficult to uniformly distribute, the blood circulation is not smooth due to excessive pressurization, and the bleeding cannot be effectively stopped due to insufficient pressurization. In addition, frequent adjustment is needed in the gauze binding process, manual operation is tedious, and the stable pressurizing effect is difficult to keep continuously, and the device is suitable for damage and leakage of the blood vessel puncture part.

The invention discloses a cloth bag cleaning device and method for a cloth bag dust remover. The cloth bag cleaning device comprises a dust remover body, and a pulse cleaning mechanism, a bag shaking mechanism and a deslagging mechanism are arranged in the dust remover body; the dust remover main body comprises a dust removing cylinder, a dust removing cloth bag and an opening and closing electromagnetic valve, an air inlet is formed in the side face of the dust removing cylinder, an air outlet and a back-flushing opening are formed in the top of the dust removing cylinder, and an ash discharging opening is formed in the bottom of the dust removing cylinder; the bag shaking mechanism comprises a first motor, a cam, a rocker, a supporting frame and a swing table and is installed at the lower end of the dust collection bag. The bag-type dust collector has the advantages of being high in cleaning efficiency and thorough in cleaning, and the problem that in the prior art, a dust collecting bag of a bag-type dust collector is single in cleaning means, and consequently the bag is difficult to clean is solved.

The invention belongs to the field of medical care instruments, and particularly provides a leakage-proof urinary catheterization device which comprises a urinary catheterization tube body. One side of the catheter main body is provided with a liquid outlet, and the other side is provided with a urine bag interface; a drainage channel is arranged in the catheter main body; one end of the drainage channel is connected with the drainage port, and the other end is connected with the urine bag connector; the catheter body is further provided with a fixing assembly and a leakage-proof assembly. The fixing assembly is used for fixing the catheter body in the bladder of a patient, and the leakage-proof assembly is used for preventing liquid leakage in a gap between the urethra and the outer wall of the catheter body. The two leakage-proof balloons are arranged on the catheter main body and are connected with the inflator pump integrated with the control function through the leakage-proof balloon inflation cavity, so that the two leakage-proof balloons can be controlled to circularly inflate and evacuate, and the leakage-proof balloon inflation cavity is connected with the inflator pump integrated with the control function while leakage prevention is guaranteed. The situation that the leakage-proof balloon continuously presses the same position of the urethra, and consequently the urethra is hurt is avoided.

The invention relates to the technical field of medical equipment, and particularly discloses a xerophthalmia treatment device and method.The xerophthalmia treatment device comprises a base, a liquid medicine box is arranged in the base, a control panel is arranged at the top of the base, a placement frame is fixedly connected to the side of the base, and a treatment instrument body is placed on the placement frame; the interior of the therapeutic apparatus body is divided into a first cavity and a second cavity through a partition plate, air holes are formed in the upper inner wall and the lower inner wall of the first cavity, two eye massagers are installed on the side, close to the first cavity, of the partition plate, and an atomization therapy mechanism, an air guide mechanism and a backflow mechanism are arranged on the therapeutic apparatus body. The atomization treatment mechanism is used for sucking liquid medicine and atomizing the liquid medicine to form small particles which enter the first cavity, and the air guide mechanism is used for evenly diffusing the small particles. Massage treatment and atomization treatment are combined and can complement each other to exert respective advantages, so that the treatment effect is enhanced.

The utility model discloses a bone joint dressing change assist device, which belongs to the technical field of medical equipment and comprises a support frame, two groups of bottom plates are mounted on one side of the support frame, and clamping rings for clamping and fixing limbs of a patient are rotatably mounted on the upper surface of each group of bottom plates. A pressing plate used for controlling the clamping ring to rotate is installed in the clamping ring, a first spring used for driving the pressing plate to reset is fixedly installed at the bottom end of the pressing plate, a limiting structure used for locking the pressing plate is slidably installed in the bottom plate, and a rotating structure used for controlling the rotating angle of the bottom plate is fixedly installed at the bottom end of the bottom plate. The rotating shaft drives the rotating frame to control the set of bottom plates to drive the limbs of the patient to rotate, the purpose of exposing and unfolding the wound is achieved, the wound is observed and contacted more visually, meanwhile, after the rotating block stops rotating, the second spring pushes the taper sleeve to be clamped with the clamping block, random rotation of the bottom plates is limited, the supporting and fixing effects are achieved, and the wound of the patient is prevented from being pulled; and secondary injury is caused to the patient.

The invention relates to the technical field of medical instruments, in particular to an internal arteriovenous fistula thrombus detecting and early-warning processing device.According to the internal arteriovenous fistula thrombus detecting and early-warning processing device, firstly, an upper limb on the internal fistula side is subjected to infrared heating through an infrared temperature measuring and heating mechanism so as to prevent thrombus formation; the current heating temperature is adjusted according to the current body surface temperature detected by the infrared temperature measurement heating mechanism; secondly, blood flow velocity information is collected through the blood information collecting assembly, whether the current blood flow velocity is lower than a preset threshold value or not is judged according to the blood flow velocity information, and when the current blood flow velocity is lower than the preset threshold value, an early warning signal is sent out through the early warning assembly, vibration is generated through the vibration beating mechanism, and the blood vessels of the upper limbs on the internal fistula side are beaten for thrombus elimination; in addition, an adjustable combined fixing frame is arranged to adapt to the upper limbs with different thicknesses, and a columnar inflatable air bag and a flexible fixing belt are used for fixing in a matched mode to prevent the device from pressing the blood vessels of the upper limbs on the internal fistula side.

The invention discloses a trachea cannula with an adjustable cannula diameter, which comprises a cannula body and an adjusting part, and is characterized in that one end of the cannula body is communicated with the adjusting part, and the adjusting part is used for adjusting the cannula diameter of the cannula body; the pipe body comprises an inner pipe and an outer pipe, the outer pipe is arranged on the outer wall of the inner pipe, a first cavity is formed between the inner pipe and the outer pipe, a second cavity is formed in the pipe wall of the outer pipe, and the second cavity is communicated with the adjusting part; the tube wall of the inner tube is sleeved with a steel wire coil, the steel wire coil is located in the first cavity, and a sleeve bag is arranged at the end of the inner tube. The trachea cannula can effectively prevent the situation that the trachea is shrunk or narrow to press the inner tube, so that the inner tube cannot supply oxygen required by a patient or too little oxygen is introduced into the inner tube, can effectively prevent continuous expansion of the outer tube from causing harm to the trachea of the patient, and improves the safety of the cannula.

The utility model belongs to the technical field of clothes, and particularly relates to briefs for fat children. Comprising a main body part, a top crotch part and a bottom crotch part, the top crotch part is connected with the front side of the main body part, the bottom crotch part is connected with the lower end of the top crotch part and the lower end of the main body part, and inner sewing lines of the bottom crotch part and the main body part are located on the front sides of legs. The bottom crotch part and a posterior wave bone suture line of the main body part are positioned on the rear sides of the leg parts. According to the briefs for the fat children, the briefs comprise the main body part, the top crotch part, the bottom crotch part and the waist part, so that the main body part, the top crotch part, the bottom crotch part and the waist part can be respectively cut according to the figure of a human body, and the main body part is prevented from pressing the buttocks, and the top crotch part and the bottom crotch part are prevented from pressing the crotch part.

The utility model belongs to the technical field of nursing pillows, and particularly relates to a special nursing pillow for preventing pressure sores. Comprising a curved pillow, a through anti-pressing hole is formed in the curved pillow, ear protecting grooves are formed in the portions, on the two sides of the anti-pressing hole, of the curved pillow, and an air bag set is arranged in the curved pillow. The air bag set comprises a height adjusting air bag, a dip angle adjusting air bag and a hardness adjusting air bag. The height adjusting air bag is arranged, the height of the nursing pillow can be finely adjusted by inflating the height adjusting air bag so as to adapt to different patients, the comfort of the patients is guaranteed, and rehabilitation is facilitated; the inclination angle adjusting air bag is arranged, so that the inclination degree of the surface of the nursing pillow can be adjusted, requirements of different patients are met, neck comfort is guaranteed, stiff neck and other problems are avoided, brain blood circulation is facilitated, and recovery of the patients is promoted; the hardness adjusting air bag is arranged, so that the device is suitable for patients of different ages and different hardness sensitivities, the brain of the patient can be better supported, and the device has better fitting comfort.

The utility model relates to a chicken heart blood sampling positioning device. Including operation support, is connected with mounting seat board and turnover drive component on it, is set up with support board no.

The utility model relates to a four-in-one trachea cannula which comprises a cannula main tube, a balloon filling tube, a glottis suction tube, a glottis flushing tube and a conical balloon, wherein the balloon filling tube, the glottis suction tube and the glottis flushing tube are respectively arranged in the cannula main tube; one end of the intubation main pipe is connected with an auxiliary joint, and the other end is provided with an inclined socket; one end of the balloon filling tube penetrates through the cannula main tube and is communicated with the conical balloon, the other end of the balloon filling tube penetrates through the cannula main tube and extends out, and a glottis suction opening and a glottis flushing opening are formed in the side wall of the cannula main tube at intervals; one end of the glottis suction tube penetrates through the cannula main tube and is communicated with the glottis suction opening, and the other end penetrates through the cannula main tube and extends out; one end of the glottis flushing tube penetrates through the cannula main tube and is communicated with the glottis flushing opening, and the other end of the glottis flushing tube penetrates through the cannula main tube and extends out of the cannula main tube. According to the utility model, the tracheal mucosa can be effectively prevented from being excessively pressed by the conical balloon, and secretions on the conical balloon can be sucked out.

The utility model discloses a prefabricated T-beam tensioning end steel formwork, which relates to the technical field of prefabricated T-beam tensioning end steel formworks and comprises a steel formwork body, a pipe fixing unit, a vibration unit and a power unit. A cover plate is installed at the front end of the steel formwork body, and a plurality of rotating cylinders are rotationally connected to the rear end of the interior of the steel formwork body. The pipe fixing unit comprises a hand-screwing bolt in threaded connection with the front end of the rotary drum, and a pipe extruding ball is mounted at the near-center end of the hand-screwing bolt; according to the utility model, when the rotary drum rotates, the rotary drum drives the penetrating lining pipe to rotate, and concrete poured on the lining pipe is buffered and redirected, so that the situation that the lining pipe and the rotary drum are pressed to rotate during continuous pouring of the concrete can be prevented, meanwhile, the buffering base plate continuously impacts the steel template main body to vibrate the steel template main body, and the vibrating steel template main body can improve the pouring uniformity; and meanwhile, after pouring is completed and the T-beam is formed, vibration is conducted when the steel formwork is dismantled, the steel formwork body attached to concrete can be separated more conveniently, and follow-up use is more convenient.

The invention relates to the technical field of hair transplantation instruments, and particularly discloses a hair transplantation postoperative recovery device which comprises a bottom plate, a first supporting plate is movably mounted at one end of the top of the bottom plate, a moving plate is movably mounted at the end, away from the first supporting plate, of the top of the bottom plate, and two second supporting plates are movably mounted at the top of the moving plate; a movable plate is movably mounted on the side, close to the second supporting plate, of the first supporting plate. By arranging the first supporting plate, the second supporting plate, the arc-shaped cover plate and the movable rod, the first supporting plate and the second supporting plate are used for supporting a patient, the patient can keep a semi-horizontal rest posture, blood circulation of the patient is improved, the recovery effect of the patient after hair transplantation is guaranteed, the movable rod plays a role of a neck pillow for the patient, and the patient is prevented from falling off. The arc-shaped cover plate plays a role of a headrest for the patient, and the arc-shaped cover plate and the movable rod play a role of positioning the patient, so that the patient is prevented from turning over under the condition of deep sleep, and the hair follicle is prevented from being pressed.

The invention discloses a wearable multi-parameter health-care vital sign monitor which comprises a monitor body, a fitting disc is arranged on the back of the monitor body, the monitor body and the fitting disc are fixedly connected through a connecting table, the back of the monitor body is fixedly connected with a supporting circular truncated cone, and the supporting circular truncated cone is fixedly connected with the fitting disc. The upper end face of the supporting circular truncated cone is fixedly connected with a guide base, the monitor body is located in the guide base, the monitor body and the guide base are arranged in an up-down elastic sliding fit mode, and a through hole used for receding the connecting table is formed in the middle of the supporting circular truncated cone. According to the device, the guide seat, the connecting table, the attaching disc, the through hole and the control combination are arranged, so that the attaching disc can reciprocate up and down, the pressing feeling on the skin can be relieved when the attaching disc reciprocates up and down, and meanwhile, heat dissipation and perspiration of the pressed skin can be facilitated; therefore, the accuracy of the vital sign parameters acquired by the monitor main body through the fitting disc can be improved, and meanwhile, the discomfort of the skin can be relieved.

The utility model belongs to the technical field of ophthalmologic operations, and particularly relates to a forehead and chin supporting frame for the prone position of a fundus patient, which comprises a fixing plate, guide rods are symmetrically fixed on one side of the top of the fixing plate, a shielding pad is fixed on the top of one end of each guide rod, and a first supporting pad is fixed on one side of each shielding pad. The outer side of the other end of the guide rod is movably sleeved with an adjusting plate, moving openings are symmetrically formed in the side wall of the adjusting plate, the guide rod penetrates through the moving openings, a second supporting pad is fixed to the top of the adjusting plate, the first supporting pad and the second supporting pad are both made of elastic materials, and an elastic rod is fixedly connected to the middle of the side wall of the fixing plate. The outer side of the elastic rod is movably sleeved with an observation plate, and a mirror surface is arranged on the top face of the observation plate. The face of a patient is supported, the eyes of the patient are prevented from being pressed, meanwhile, medical staff can conveniently observe the situation of the eyes of the patient from multiple angles by adjusting the angle of the mirror face, and the practicability of the whole supporting tool is improved.

This utility model discloses a nail removal device for environmentally friendly wooden door production, including a triangular plate. A handle is fixedly connected to the top of the triangular plate, and a nail-pulling plate is provided at the bottom of the triangular plate. This utility model belongs to the technical field of nail removers, specifically a nail removal device for environmentally friendly wooden door production that solves the problem of how nail removers are sometimes used to pry up and remove nails by clamping the nail remover onto a nail cover and using the corner of the nail remover as a fulcrum. In this method, the corner presses against the wooden door, causing damage, and the nail is not pried up perpendicular to the door, resulting in further damage to the door.

The utility model discloses a dental instrument system with an auxiliary orthodontic device. The dental instrument system comprises a shell-shaped dental instrument and the auxiliary orthodontic device, the shell-shaped dental instrument comprises a plurality of cavities for accommodating a plurality of teeth, and mounting holes are formed in the surfaces of the cavities; the auxiliary correction device comprises a functional part, a main body part and a retention part which are arranged in sequence, and an elastic pre-tightening part; the functional part and the retention part are located on one side of the outer surface and one side of the inner surface of the cavity respectively, and limiting faces are arranged on the side, close to the outer surface of the cavity, of the functional part and used for limiting the auxiliary device to move in the near tooth direction and the far tooth direction respectively; wherein the pre-tightening part is arranged between the limiting surface and the outer surface of the cavity in a compressed state, or the pre-tightening part is arranged between the surface of the side, far away from the teeth, of the retention part and the inner surface of the cavity in a compressed state, so that pre-tightening force for limiting the auxiliary correction device to move in the axial direction is formed in the axial direction of the main body part, and the pre-tightening part is compressed in the axial direction.

The present invention belongs to medical equipment and discloses a spherical and cylindrical integrated airbag for expansion and fixed support when entering the digestive tract. The invention is characterized in that a spherical airbag and a cylindrical airbag are provided on the same hose, and both the spherical airbag and the cylindrical airbag have expansion pipes in the same hose for communication and expansion by external gas / liquid supply.