68 results about "General Anesthesias" patented technology

The invention discloses an N-substituted imidazole carboxylic ester compound with an ultrashort-acting anesthetic effect. The structure is shown in formula (I), wherein R is shown in the specification, or -(CH2)nOR'; n is an integer from 1 to 3; R' is selected from C1-4 alkyl and acyl; R' is not methyl when n is 2. The compound can generate a quick and reversible general anesthesia effect. An animal experiment shows that the compound and a pharmaceutically acceptable salt compound thereof have the characteristics that the effects are shorter than the etomidate anesthetic effect, can be prompted to carry put quick metabolism inside a body, can be used as ultrashort-acting general anesthesia drugs, and have significant advantages and good application prospects; shortening of the inhibition time on cortical hormone is also facilitated; the compound can be obtained from an N-substituted imidazole carboxylic acid compound, and corresponding alcohol and haloalcohol or ester, halide and the like thereof by condensation or substitution reaction.

By intravenously administering a sedative comprising methyl 3-[(4S)-8-bromo-1-methyl-6-(2-pyridinyl)-4H-imidazo[1,2-a][1,4]benzodiazepin-4-yl]propanoate or a salt thereof to a patient by a dosing regimen including a two-step process disclosed in the present invention, general anesthesia can be safely and promptly induced and maintained.

The invention relates to an N-substituted imidazolecarboxylic acid ester chiral compound containing an ether side chain, a preparation method and an application thereof. The structure of the compound is shown in the formula (I). The compound can produce rapid and reversible general anesthesia effect. Animal experiments show rapid and short-acting pharmacological characteristics of the compound, so that the compound can be used as a rapid and short-acting general anesthesia medicine, meanwhile, compared with etomidate, the compound can reduce the inhibition effect on synthesis of adrenal cortical hormone, recovery is rapid and thorough, and the compound has obvious advantages and good application prospect. The only chiral carbon in the structure of the compound must be of R type. An imidazole ring in the structure of the compound has acidifiable N atoms, so that the compound and medicinal salt molecules thereof can be applied to the preparation of central inhibitory medicines which can produce sedative and hypnotic and / or anesthetic effects on animals or persons through veins or paths outside veins.

A system and method are presented for treating branches of the superior hemorrhoidal artery by photocoagulation using laser energy. The inflamed dilated blood vessels in and around the anal region, often called hemorrhoids or piles, are caused due to a connective tissue disorder, a relative increase in pressure in the superior hemorrhoidal artery and a weakening of the vessels' valves. A suitable treatment system and a method are given for treating such conditions in a minimally invasive manner. The treatment system photocoagulates the branches of a superior hemorrhoidal artery in the anal and rectal regions using laser energy while causing minimal pain or discomfort to the patient. The system is provided with a transparent operational window. The distal end of the fiber and Doppler system channel are at the operational window. The system also includes a viewing window. The post operative recovery is faster than alternative approaches with no complications. In contrast to most other successful methods of the prior art, general anesthesia is no longer required, thereby significantly reducing complications and simplifying treatment.

An etomidate fat emulsion concentrated solution, a preparation method and an application thereof belong to the field of pharmacology and pharmaceutics. According to the invention, the defect that a traditional fat emulsion preparation technology is complex and stability is poor is overcome. The preparation technology provided by the invention is simple; the general physical stirring process is only needed; and no homogenization technology is required. A product prepared in the invention can be sterilized through a 0.22-micron microfiltration membrane; in clinical use, the product can be spontaneously emulsified after diluted by the use of an aqueous solution such as normal saline or a glucose solution, etc. and slightly oscillated; and under optimized conditions, average particle size is about 0.2 micron, and injection fat emulsion characteristics are fully embodied. The product has good fluidity, will not be retained on the wall, is single-phase, transparent and clear in appearance, can undergo clarification detection, will not cause preparation stratification after multigelation and is used in clinical uses such as induction of general anesthesia, short-time operative anesthesia and the like.

The invention belongs to the field of medicines, and particularly discloses a ventilation apparatus for general anesthesia. A tracheal catheter comprises a tracheal inner layer and a tracheal bladder arranged outside the tracheal inner layer. A control unit comprises a rotary sleeve which is in rotary connection with a laryngeal mask catheter, guide slots are formed in the outer side of the rotary sleeve, and the top of the rotary sleeve is connected with a bolt. A sliding cavity and an air supply assembly are arranged in the rotary sleeve; the air supply assembly is used for supplying and feeding air for the tracheal bladder; a slider is in sliding connection in the sliding cavity; a connecting rod penetrates the inside of the slider and is provided with a stop plate; one end of the connecting rod runs through a third communicating port and is connected with the tracheal inner layer; the other end of the connecting rod is connected with an indicating ball which is in sliding connection in the guide slots. A cam mechanism is also arranged in the slider and abutted against the tracheal catheter. According to the technical scheme, hurt to the patient's body caused by rubbing generated in the process of inserting the laryngeal mask catheter and the tracheal catheter can be reduced, insertion of the tracheal catheter is facilitated, the state of the tracheal catheter can be switched conveniently, and thus, work efficiency of medical staff is improved.

Means and methods for measuring pain and adapted for calculating the level of nociception during general anesthesia or sedation from data including electroencephalogram (EEG), facial electromyogram (EMG), heart rate variability (HRV) by electrocardiogram (ECG) and plethysmography by impedance cardiography (ICG). In a preferred embodiment of this invention the parameters derived from the EEG, the HRV, the plethysmographic curve and the analgetics concentrations are either combined into one index on a scale from 0 to 100, where a high number is associated with high probability of response to noxious stimuli, while a decreasing index is associated with decreasing probability of response to noxious stimuli. Zero (0) indicates extremely low probability of response to noxious stimuli. In an alternative embodiment, only features from the EEG and ECG will be used or only features from EEG, ECG and ICG, to define the fmal index.

The invention provides pharmaceutical compositions comprising a phenylacetic acid ester compound useful for inducing or maintaining general anesthesia or sedation in mammals, methods for preparing such compositions, and methods for inducing or maintaining anesthesia or sedation using such compositions.

The invention provides a multifunctional inhalation type general anesthesia device for the anesthesia department, and relates to the technical field of medical instruments. The multifunctional inhalation type general anesthesia device for the anesthesiology department comprises a base, wherein a lower box body is fixedly connected to the upper end of the base, an upper box body is fixedly connected to the upper end of the lower box body, an evaporator is fixedly arranged outside the upper box body, the evaporator comprises an anesthetic liquid box, and a medicine adding opening is fixedly formed in the upper end of the anesthetic liquid box; and a sealing plug is in threaded connection to the interior of the medicine adding opening, an oxygen tank is fixedly arranged in the upper box body,and a humidifying and mixing device is fixedly arranged at the upper end of the oxygen tank. According to the multifunctional inhalation type general anesthesia device for the anesthesia department provided by the invention, a patient can inhale wet gas, uncomfortable feeling of the patient is avoided, oxygen can be provided for the patient, the patient is prevented from being in an oxygen deficit state, emergencies can be dealt with, safety is higher, air pollution is prevented, and the device is more environmentally friendly.

The invention provides omeprazole sodium for injection, a preparation method and application of the omeprazole sodium for prevention of aspiration pneumonitis caused by regurgitation of gastric juicein the adaptation disease and belongs to the field of medical preparations. The raw materials of the omeprazole sodium for injection comprise omeprazole sodium, ethylenediamine tetraacetic acid disodium salt and water for injection. The preparation method comprises the steps that the ethylenediamine tetraacetic acid disodium salt and the omeprazole sodium are added to the water for injection in sequence, the pH value of an aqueous solution of sodium hydroxide is adjusted, activated carbon is added for adsorption and heat source removal, remaining water for injection is added, the activated carbon is filtered out and removed or a super membrane is adopted for filtering and removing a heat source, and a semi-finished product is obtained; the content and pH value of the semi-finished productare detected, after the standard is achieved through inspection, sterilization and filtering, quantitative filling and freezing and drying are conducted, and a freeze-dried product is obtained; the freeze-dried product is compressed and subjected to capping, finished product inspection, label attachment and packaging are conducted, and the finished product is obtained. The invention further discloses application of the omeprazole sodium for injection for prevention of aspiration pneumonitis caused by regurgitation of gastric juice for a patient with general anesthesia or a patient with asthenia and coma after surgery in the adaptation disease.

The invention provides omeprazole sodium for injection, a preparation method and application of the omeprazole sodium for prevention of aspiration pneumonitis caused by regurgitation of gastric juicein the adaptation disease and belongs to the field of medical preparations. The raw materials of the omeprazole sodium for injection comprise omeprazole sodium, ethylenediamine tetraacetic acid disodium salt and water for injection. The preparation method comprises the steps that the ethylenediamine tetraacetic acid disodium salt and the omeprazole sodium are added to the water for injection in sequence, the pH value of an aqueous solution of sodium hydroxide is adjusted, activated carbon is added for adsorption and heat source removal, remaining water for injection is added, the activated carbon is filtered out and removed or a super membrane is adopted for filtering and removing a heat source, and a semi-finished product is obtained; the content and pH value of the semi-finished productare detected, after the standard is achieved through inspection, sterilization and filtering, quantitative filling and freezing and drying are conducted, and a freeze-dried product is obtained; the freeze-dried product is compressed and subjected to capping, finished product inspection, label attachment and packaging are conducted, and the finished product is obtained. The invention further discloses application of the omeprazole sodium for injection for prevention of aspiration pneumonitis caused by regurgitation of gastric juice for a patient with general anesthesia or a patient with asthenia and coma after surgery in the adaptation disease.

The invention discloses a video tracheobronchial foreign body microscopic examination general anesthesia system. In the system, a microscopic examination anesthesia ventilation laryngotracheal microscope is a three-way special-shaped tube (1-5); the front end of the three-way special-shaped tube (1-5) serves as a video end outlet (1-6); an installation sliding telescopic tube (1-3) and a pipelineof a tracheobronchial microscope are arranged in the three-way special-shaped tube (1-5); and the outer side of one circle of the pipeline (1-1) is provided with a breathing air duct (2-10). According to the invention, an anesthesia breathing ventilation structure used for video anesthesia and extraction of microscopic examination foreign bodies, microscopic examination software programming and automatic storage and output of microscopic examination results are realized; a similar equipment system does not exist at home and abroad, and improved ventilation for an infant intratracheal foreign body microscope and general anesthesia are reported but are not perfect and reliable; and a microscopic examination anesthesia system for increasing the infant intratracheal foreign body curing rate and the survival rate, reducing damage caused by accidental suction of infants and improving the survival quality is needed.

The invention discloses a multifunctional inhalation type general anesthesia device for the anesthesia department. The device comprises a bottom plate; a supporting plate is installed on the left sideof the upper surface of the bottom plate; a horizontally-arranged dustproof top plate is installed at the top of the supporting plate; a transverse frame is installed in the middle of the right sideof the supporting plate; an air guiding cylinder is fixedly arranged at the right end of the transverse frame; and an anesthetic box is fixedly arranged on the bottom plate below the transverse frame.According to the anesthetic box, a first oscillation sheet and a second oscillation sheet alternately oscillate up and down in an anesthetic box, so that anesthetic liquid in the anesthetic box oscillates and rolls up and down, precipitation of the anesthetic liquid is effectively prevented, uniformity of the content of anesthetic agents is guaranteed, and the anesthetic effect is guaranteed. Oxygen and anesthetic gas are mixed and then inhaled for general anesthesia of a patient, so that the anesthesia effect is achieved, the effect of sufficient oxygen supply is also achieved, and the problem that the patient suffers from anoxia and feels uncomfortable due to pure anesthetic inhalation is solved.

The invention belongs to the technical field of medical instruments, and particularly relates to a urologic surgery operation supporting device and a using method thereof. The urologic surgery operation supporting device comprises an operation bed, and further comprises a sliding rail, a clamping mechanism, a lifting device and a fixing mechanism. According to the urologic surgery operation supporting device and the using method thereof, the fixing mechanism is arranged, due to the fact that a patient needs to be subjected to general anesthesia in the operation process, the body of the patient is unconscious and is prone to sliding off due to the gravity effect, the fixing mechanism fixes and supports the shanks of the patient, meanwhile, a supporting plate is driven to rotate to the shape parallel to the shank shape of the patient by rotating the handle, the body of the patient is prevented from being hurt, and the effect of protecting, supporting and fixing the shanks of the patient is achieved.

The invention provides a medical mint gel eye protection patch and a preparation method thereof. The medical mint gel eye protection patch comprises the following raw materials in parts by weight of 10 to 15 parts of medical polyvinyl alcohol, 5 to 10 parts of mint extract, 0.25 to 0.5 part of rose essential oil, 0.1 to 0.3 part of clove oil, 0.3 to 0.5 part of carrageenan, 0.15 to 0.25 part of sodium alginate and 90 to 100 parts of water. The preparation method of the medical mint gel eye protection patch comprises the following steps of S1, preparing the raw materials; S2, mixing the water,the mint extract, the carrageenan and the sodium alginate to obtain a mixture A; and S3, mixing the rose essential oil and the clove oil, and performing vacuum defoaming, injection molding, freezing and thawing process treatment and irradiation sterilization to obtain the medical mint gel eye protection patch. The medical mint gel eye protection patch provided by the invention has excellent moisturizing effect and antibacterial performance, and can effectively reduce the occurrence probability of exposure keratitis in a general anesthesia process.

The invention belongs to the technical field of general anesthesia, particularly relates to an automatic disinfection equipment for clinical general anesthesia, and aims to solve the problems that theconventional automatic disinfection equipment wastes a large amount of time and cannot adjust the concentration of anesthetic according to the wound condition of a patient. The following scheme is proposed, including a workbench, four corners of the outer wall of the top of the workbench are fixed with supporting rods through bolts, a top plate is fixed to the outer walls of the top ends of the supporting rods through bolts, a disinfectant storage box is fixed to the outer wall of the bottom of the workbench through bolts, and a third booster pump is fixed to the outer wall of one side of thedisinfectant storage box through bolts. A infusion pipe conveys disinfectant into a disinfection plate, the disinfection plate sprays the disinfectant to a wound of a patient for disinfection, the disinfection position of the disinfection plate is adjusted through a sliding rail, and a first booster pump and a second booster pump are started during anesthesia to suck normal saline and anestheticinto a mixing box, which can mix the anesthetic, and adjust the concentration of anesthetics.

The invention relates to an anaesthesia machine technology, in particular to an inhalation type anaesthesia machine for general anesthesia, which is used for solving the problems that water vapor in a mask is gathered into water drops to drip and then enters the trachea of a patient along with breathing to cause discomfort, and the anaesthesia effect is affected due to the fact that more water vapor easily breeds bacteria and the exhaust speed of waste gas is low at the position of a mask connecting port. Comprising an anaesthesia machine body, an air inlet pipe, an exhaust pipe and a mask. A dehumidification driving gear is driven by a driving shaft to rotate, the dehumidification driving gear is matched with a driven gear, so that water vapor on the inner wall of a mask is cleaned through reciprocating swing of a telescopic sleeve connected with a dehumidification sponge, and a bacteriostatic driven gear is driven by the driving shaft to rotate; the cleaning sponge on the rotating frame can absorb water vapor at a connector of the mask, bacteria and dust are prevented from being bred and attached to the connector, the reciprocating lead screw is driven by the driving shaft to rotate, and waste gas exhaled by a patient in the mask is rapidly transmitted into an exhaust pipe through the telescopic hose.

The invention belongs to the field of medical instruments, particularly relates to a limb fixing device for the anesthesia department. For the problems that the neck position of a patient is uncomfortable after an operation due to the fact that the head of the patient is inconvenient to fix, and the body and the four limbs of the patient are inconvenient to fix, and the normal progress of the operation is affected by advanced anesthesia failure to make the patient move due to pain in the existing general anesthesia process of the patient, the following scheme is proposed that the limb fixing device comprises a table body; two first sliding grooves symmetrical are formed in the top part of the table body; a first vertical rod is slidably installed in each of the two first sliding grooves; an empty groove is formed in the table body; and a first through hole is formed in the inner wall of one side of each of the two first sliding grooves. According to the limb fixing device, in the general anesthesia process of the patient, the head of the patient can be conveniently fixed, so that discomfort of the neck position of the patient after the operation can be prevented, the body and four limbs of the patient can be conveniently fixed; and the structure is simple, and use is convenient.

Patients undergoing general anesthetics frequently experience emergence clenching where the patient may bite onto their breathing tube and may clench their teeth. These activities lead to dental damage and negative pressure pulmonary edema. The invention of this patent is a simpler, better bite block that may be used to prevent these injuries. The bite block presented comprises a deformable material used as a core around which a bite-resistant material is wrapped to prevent damage to the core by patient biting. The bite-resistant material may be formed into a distal tail that the user can pull to retain or retrieve the device. It may also have a patch of adhesive to attach the bite block to locations including the patient, the surgical drapes and the patient's breathing airway, and thereby prevent loss of the bite block.

The invention provides an acaricide for treating sarcoptes suis. The acaricide consists of fenvalerate, spirodiclofen, a cosolvent, a surfactant, a transdermal agent, a pour-on solution and ethanol, wherein the cosolvent is ethyl acetate; the surfactant is Tween-80 or compound phosphate ester; the transdermal agent is menthol; the pour-on solution is tangerine peel active principle acetate. The cosolvent is dimethylbenzene, and the surfactant is the Tween-80. The major component of the acaricide is 20% of fenvalerate which is mainly used for tagging out sarcoptic mites and blood sucking insects and has the functions of stomach poisoning and dispelling. Medicaments enter the nerve systems of mites after being contacted with the mites, so that the mites become highly excited, shake, rapidly turn to general anesthesia and paralysis, and die finally. Thus, the acaricide can be used for killing the sarcoptes suis, and has good killing effects on lice, fleas, ticks, horseflies, mosquitoes, flies and various ova.

The invention provides a pantoprazole sodium freeze-dried medicinal composition for injection, comprising the following components by weight: 1 part of pantoprazole sodium and 0.01-0.1 part of sodium citrate. The invention also provides a preparation method of the freeze-dried medicinal composition. The pantoprazole sodium freeze-dried medicinal composition for injection is used for treating peptic ulcer bleeding, acute gastric mucosal injury caused by non-steroidal anti-inflammatory drugs and ulcer hemorrhoea in a stress state, as well as regurgitation of gastric juice and aspiration pneumonia of patients who are subjected to general anesthesia or a major operation and are weak and in coma.

A manual clot aspiration and filtration system enables a method of removing a clot without general anesthesia and the expense of an operating room. An aspiration and filtration system for bodily fluid utilizes a syringe coupled with a filter unit to draw bodily fluid through the filter unit to collect debris on the filter. A flow valve may then be turned and the plunger depressed to force the filtered fluid back into the body. The filter may be configured to capture particles such as blood clots and plaque. The filter unit has a cover that can be removed for inspection and / or removal of the collected debris. When the cover is replaced, trapped air may be removed by turning the flow-valve to a purge direction and pressing the plunger into the syringe to force fluid back toward the filter unit to purge the trapped air through the purge valve.

A manual clot aspiration and filtration system enables a method of removing a clot without general anesthesia and the expense of an operating room. An aspiration and filtration system for bodily fluid utilizes a syringe coupled with a filter unit to draw bodily fluid through the filter unit to collect debris on the filter. A flow valve may then be turned and the plunger depressed to force the filtered fluid back into the body. The filter may be configured to capture particles such as blood clots and plaque. The filter unit has a cover that can be removed for inspection and / or removal of the collected debris. When the cover is replaced, trapped air may be removed by turning the flow-valve to a purge direction and pressing the plunger into the syringe to force fluid back toward the filter unit to purge the trapped air through the purge valve.

The invention provides a filler injection method capable of resetting facial soft tissue and relates to the technical field of aesthetic and plastic surgery. The filler injection method capable of resetting the facial soft tissue comprises the following specific steps: S1. firstly, drawing the outline of an entire range and filling extent to be filled by using a sterile pen in advance according to depression, wrinkle extent and face shape characteristics of the facial soft tissue of a sufferer; S2. designing an appropriate filling path and injection positions according to the drawn filling range, and determining sequential injection sequences and injection directions of a plurality of injection positions; and S3. carrying out facial local anesthesia or general anesthesia on the sufferer prior to surgery, sucking a filler to be filled by using a fine syringe after successful anesthesia is confirmed, and exhausting extraneous air from the syringe. Through designing a simple injection path and injection mode, the number of the injection positions can be reduced greatly, so that the aching feeling of the sufferer is lowered greatly, and meanwhile, injury to the facial soft tissue of the sufferer can also be reduced greatly.

A pet cat tooth-washing fixing holder mainly comprises a base, an oblique table, a rotary table, a fixing clamp, a head air bag, an opening expander and a controller, wherein two sides of the base areprovided with side walls, the side walls are hinged and connected to the middle of the oblique table, the two sides of the hinged connection positions of the base are symmetrically provided with twooblique air cylinders, and the upper ends of the oblique air cylinders are supported at the bottom of the oblique table. Two sides of the oblique table are provided with supporting frames, and the rotary table is connected with the supporting frames through bearings. The rotary table is provided with a rotatable turntable, and the supporting frames are provided with clamping grooves. The head airbag is provided with a fixed end and two free ends, wherein the fixed end is fixedly connected with a supporting cloth end, and the free ends are connected to supporting cloth through fasteners. The opening expander mainly comprises a telescoping air cylinder having a bidirectional effect and supporting pieces arranged at two ends of a piston rod of the telescoping air cylinder. The pet cat tooth-washing fixing holder achieves effective cat fixation, can open the mouth of a cat and achieves the purpose of tooth washing without general anesthesia.

The invention relates to application of lauromacrogol injection in preparation of a medicine for treating bronchial cyst, and solves the problems that in the prior art, operative trauma is large, and part of special patients cannot tolerate operations and general anesthesia. According to the invention, the lauromacrogol injection with low recurrence rate is used as a medicament for treating bronchial cyst by replacing operative treatment with medicament treatment. A formula of the lauromacrogol injection comprises 1g of lauromacrogol, 5ml of ethanol and the balance of water for injection, wherein the total volume is 100ml. According to the invention, operation treatment is replaced by drug treatment, after the lauromacrogol injection is injected into the sac cavity of the bronchial cyst, sterile inflammation is generated, and the sac cavity is solidified, hardened, adhered, closed and gradually absorbed to disappear. According to the invention, patients with bronchial cyst do not suffer from pain during operation, can recover quickly and can be discharged from hospital for 3 days after operation, and the high recurrence rate of cyst caused by incomplete excision during operation is avoided.

The invention provides a pleural cavity negative pressure ventilation breathing machine and a using method thereof. A breathing machine comprises a breathing machine main body; and the breathing machine main body is provided with a ventilation opening, the ventilation opening is connected with a ventilation piece, and the ventilation piece can extend into a pleural cavity through a thoracocentesis wound so that the breathing machine main body can change the pressure in the pleural cavity. The using method comprises the following steps of S1, puncturing the pleural cavity by using a thoracocentesis assembly; S2, extending an end part of the ventilation piece into the pleural cavity from the puncture wound; and S3, starting the breathing machine main body, injecting air into the ventilation piece and exhausting the air from the ventilation piece by the breathing machine main body so as to change the pressure in the pleural cavity, and achieving then collapse and expansion of lungs. By utilizing the leakproofness of the pleural cavity of a human body, the ventilation piece is arranged in the pleural cavity by adopting a minimally invasive puncture technology, the pressure in the pleural cavity is changed through the breathing machine main body to enable the lungs to be collapsed and expanded, general anesthesia and tracheal intubation are not needed, the pressure generated on lung tissue is reduced, and the probability of complications can be reduced.

The invention relates to application of lauromacrogol injection in preparation of a medicine for treating spontaneous pneumothorax, and solves the problem that special groups cannot tolerate operations and general anesthesia in the prior art. According to the invention, the lauromacrogol injection with low recurrence rate is used as the drug for treating spontaneous pneumothorax by replacing operative treatment with drug treatment. A formula of the lauromacrogol injection comprises 1g of lauromacrogol, 5ml of ethanol (96%) and the balance of water for injection, wherein the total volume is 100ml. According to the pleural cavity adhesive, operation treatment is replaced by medicine treatment, after the lauromacrogol injection is injected into the pleural cavity, the pleura is stimulated to generate aseptic inflammation, coagulation, sclerosis, adhesion and closure, the painful reaction of the pleural cavity is not caused, and the pleural cavity adhesive is an ideal pleural cavity adhesive.

The invention relates to the technical field of medical instruments, in particular to a reviving auxiliary device for general anesthesia patients, which comprises a medical bed body, a protective structure is mounted on the medical bed body, a connecting structure is mounted on the protective structure, a positioning structure is mounted on the protective structure, and a limiting structure is mounted on the protective structure. The protection structure is provided with an abutting structure, the medical bed body is provided with a fixing structure, and the fixing structure is provided with an auxiliary structure. By installing the protection structure on the medical bed body, the head of a patient can be protected and fixed, migraine caused by long-time heeling of the patient is prevented, meanwhile, the protection structure can be conveniently taken down from the medical bed body through the connecting structure, and by installing the positioning structure on the protection structure, the mouth of the patient can be fixed; and the positioning structure can be conveniently fixed through the limiting structure and the abutting structure.