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Disposable medical gown-Medical gown customiser-Isolation gown

Medical gown customiser

Sintrue is a medical gown customiser in China and sells not only gastrointestinal devices, but also home care products, hypodermic products, surgical and urological products. Disposable medical gown is part of the non-woven and dental product range, and there are many related products that are used in our daily lives, such as medical pads, non-woven bed linen, masks, shoe covers and medical caps. All of our products are sold overseas through national quality control and we have extensive experience in selling overseas. Below you will find links to the relevant disposable medical gowns for you to choose from.

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With the outbreak of 2019, medical supplies are in short supply and masks have become a necessity for everyone on the go. However, the disposable medical gown also plays a big role on the frontline of the fight against the epidemic and in various isolation sites.

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For physical cooling, Sintrue Medical Instruments has launched hospital PVC cooling gel patch, which is mainly used for instant cold relief and fever discomfort.

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Hospital clinic luxury special single head stethoscope knowledge

Single head stethoscope product description

Hospital clinic deluxe special single head stethoscope usually consists of an auscultation head, a sound guide tube and an ear hook. It provides non-linear amplification of the collected sound. The hospital clinic deluxe special single head stethoscope is the most common diagnostic tool for internal and external gynecologists and pediatricians, and is the hallmark of physicians. The hospital clinic deluxe special single head stethoscope has been used in clinical practice since its invention, but its basic structure has not changed much, mainly consisting of the pick-up part, the conduction part and the hearing part. The basic structure of the stethoscope has not changed much since its clinical application.

Size of the auscultation head

The larger the contact surface of the stethoscope head with the body, the better the sound picked up. However, the surface of the human body has curvature, if the chest piece is too large, listen to the head can not completely contact with the body, the sound not only can not be well picked up, but also from the gap leakage out, therefore, the size of the stethoscope head should be based on clinical needs. hospital clinic deluxe special single head stethoscope chest piece diameter are almost uniform in 45 -50 mm, special, such as the special stethoscope chest piece diameter between 45 -50 mm. -The diameter of the hospital clinic deluxe special single head stethoscope chest piece is almost always uniformly between 45 and 50 mm, with special ones such as the pediatric chest piece generally having a diameter of 30 mm and 18 mm for neonates.

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Hospital clinic deluxe special single head stethoscope supplier

Purchase hospital clinic deluxe special single head stethoscope

Ningbo Sintrue Medical Instruments Co., Ltd. is a supplier of medical equipment and supplies, and our hospital clinic deluxe special single head stethoscope is made of zinc alloy chest piece with a chrome-plated silver finish. Our products are exported to overseas and have been well received by all and are worthy of your trust.

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Sintrue medical dult Child Aneroid sphygmomanometer parts Cuff

Aneroid sphygmomanometer Cuff has an effect on blood pressure measurement

1. in the determination of blood pressure, strapped aneroid sphygmomanometer Cuff and put a stethoscope inside against the medial elbow fossa arterial pulsation, when the first sound from the stethoscope, the height reached by the column of mercury is the systolic pressure, the sound is aneroid sphygmomanometer Cuff pressure is reduced, blood through the The sound is the aneroid sphygmomanometer Cuff when the pressure decreases and the blood passes through the narrow blood vessel to form a vortex; then the pressure decreases further, the mercury column decreases and the blood vessel gradually returns to normal flow and the sound becomes weaker, at this time the height of the mercury column is the diastolic pressure. Note that:

(1) The posture of the measurement also has an effect on the results. Studies have shown that for every 10 cm increase in height above the heart, the blood pressure value decreases by about 8mmhg, and for every 10 cm decrease in height the blood pressure value increases by about 8mmhg.

(2) Because each doctor's hearing reflects different speeds, sometimes larger errors are made because blood pressure readings are not immediately noted at the time of measurement. Therefore, each doctor's measurement will also produce errors, doctors often omit some errors and take the whole number

(3) There is a lot of subcutaneous fat in the upper arm, which causes the aneroid sphygmomanometer Cuff to be tied too loosely or too tightly. Whether it is too loose or too tight, it will make the blood pressure measurement value low (too tight will make the blood flow is not smooth, too loose will make the blood vibration can not be completely transmitted to the aneroid sphygmomanometer Cuff, blood pressure value also becomes low) the appropriate degree for the aneroid sphygmomanometer Cuff rolled, the aneroid sphygmomanometer Cuff and the aneroid sphygmomanometer Cuff are not the same as the aneroid sphygmomanometer Cuff. sphygmomanometer Cuff and the arm should be able to stretch a finger freely.

2. When the peal of blood pressure measurement, aneroid sphygmomanometer Cuff too tight will lead to inaccurate measurement results, because the principle of the sphygmomanometer when you to aneroid sphygmomanometer Cuff sufficient gas inside the arteries are completely flattened, is not pass blood, when you slowly deflate, gradually decompression of the arteries, the arteries just can pass Arterial blood, the heart contraction to the artery ejection of blood, which is the arterial wall received a strong impact, you will hear the first sound, is the systolic pressure; you continue to slowly deflate, when the aneroid sphygmomanometer Cuff on the arterial wall exactly a little pressure, but not yet completely loose, when the heart ejection of blood to the arterial wall of the smallest impact, continue to deflate can no longer Hear the impact sound, the blood pressure at this time is the diastolic pressure.

3. If the aneroid sphygmomanometer cuff is too loose, and the eye line of the measurement is below the curved surface of the mercury column, the measured blood pressure will be high; conversely, the measured blood pressure will be low.

4. The tightness of the singed aneroid sphygmomanometer Cuff directly affects the error of the sphygmomanometer, too tight will result in high readings, too loose will result in low readings, and the readings will be more accurate if you wear the arm band with a finger position. The accuracy and mercury is about the same, wear a good arm band and press a key to complete the measurement. Too loose or too tight will make the results low, mercury column sphygmomanometer is designed through the principle of the doctor with a stethoscope to listen to the blood through the narrow blood vessels and the formation of vortex sound to the principle of the sound.

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Do you know these secrets of the aneroid sphygmomanometer cuff ?

Effect of different models of aneroid sphygmomanometer Cuff on blood pressure values

When the arm circumference is larger than the aneroid sphygmomanometer Cuff range, the measured systolic blood pressure value is high; while when the arm circumference is smaller than the aneroid sphygmomanometer Cuff range, the measured diastolic blood pressure value is high.

The parts of the body where blood pressure is measured are these.

1, the brachial artery of the upper arm: sitting or supine position, aneroid sphygmomanometer Cuff lower edge from the elbow fossa 2-3cm, tight to be able to insert a finger is appropriate. The stethoscope chest piece is placed at the most obvious fluctuation of the brachial artery.

2, dorsalis pedis artery: supine position, aneroid sphygmomanometer Cuff lower edge of the calf from the ankle 3-4cm, elasticity to be able to insert a finger is appropriate. The stethoscope chest piece is placed on the dorsalis pedis artery.

3, popliteal artery: the position is supine, prone, lateral, generally do not use the supine position of bending knees. aneroid sphygmomanometer Cuff lower edge of 3-4cm away from the popliteal fossa. stethoscope chest piece placed in the popliteal artery fluctuations are most obvious.

The blood pressure values are different for different parts of the body

Generally, the blood pressure of the right upper extremity is higher than that of the left upper extremity because the right brachial artery comes from the first major branch of the aortic arch, the unnamed artery, while the left brachial artery comes from the third major branch of the aorta, the left anterior clavicular artery, because the diameter of the femoral artery is thicker than that of the brachial artery and the blood flow is greater. there is not much mention of using a special leg type or a larger model of aneroid when measuring the lower extremity sphygmomanometer Cuff for blood pressure measurement. In conclusion, when a patient's blood pressure cannot be measured in the upper extremity, we can measure the blood pressure in the lower extremity, but it is best to use a special leg-type aneroid sphygmomanometer Cuff or a larger type of thick-arm aneroid sphygmomanometer Cuff, if the commonly used standard type aneroid If the standard aneroid sphygmomanometer Cuff is used to measure blood pressure in the lower extremities, it will result in high values, especially high systolic blood pressure. Patients with different arm circumferences should preferably use different models of aneroid sphygmomanometer Cuff to measure blood pressure to avoid pseudohypertension. It is recommended that clinical departments be equipped with different models of aneroid sphygmomanometer Cuffs to measure blood pressure in patients with different arm circumferences.

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Sintrue medical ENT instrument diagnostic set ENT kit in Ningbo

Medical ENT instrument diagnostic set maintenance and care

In addition to cleaning, drying and sterilizing the medical ENT instrument, care and maintenance are also steps that cannot be ignored. Since medical ENT instrument is a highly precise instrument, many parts are made of special materials, complex structure, high cost, frequent turnover, difficult to clean after use, and difficult to sterilize. Therefore, how to remove organic and inorganic substances and microorganisms contaminating the medical ENT instrument diagnostic set to a safe level through effective methods plays an important role in the success of sterilization and the control and prevention of hospital infections. Proper cleaning, disinfection and maintenance will protect the medical ENT instrument and extend its service life, saving money for the department and hospital.

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Medical ENT instrument examination methods

Types of medical ENT instruments

Ear, nose and throat examinations must be performed with care because the ear, nose and throat are deep, tiny cavities, so special lighting devices and examination instruments must be used for the examination, commonly used are 100-watt examination lights with spotting lenses, medical ENT instruments, otoscopes, tympanic otoscopes, lance forceps, cotton rolls, cerumen hooks, tongue depressors, anterior rhinoscopes, posterior rhinoscopes, indirect laryngoscopes, tuning forks, and Nebulizer, etc.

Medical ENT instruments include ENT knives and chisels, ENT scissors, ENT forceps and clips, ENT hooks and needles, etc. They are mainly used for ENT surgery. otoscope, electric tympanic otoscope lens, electric otoscope, nebulizer, straight tongue depressor, angled tongue depressor, gun forceps, knee forceps, rolled cotton, cerumen hook, posterior rhinoscope, indirect laryngoscope, anterior rhinoscope, tuning fork, etc.

Medical ENT instrument examination methods

The otorhinolaryngological organs are located deep in the head and face, and the cavity is narrow and tortuous, so it is not easy to see directly and clearly. The examination environment should be slightly dark, and curtains should be set up to avoid strong light coming in directly. The patient's chair should be a specialist examination chair or a high-backed reclining chair, so that the patient's head is in an upright or slightly forward position.

A. Light source

With a certain light source can be used, to 100W brightness is appropriate, commonly used light bulbs, with a concentrating lens of the examination lamp is best. Can also be used locally with flashlights, gas lamps, etc. Light source should be movable to facilitate adjustment. The light source should be placed on the side of the examiner's eye, slightly higher than 10-20 cm above the patient's ear.

Second, the use of medical ENT instrument

There is a concave reflector in the medical ENT instrument that can concentrate light, with a focal length of about 25cm and a small hole in the center for peeping, and the mirror body is linked to the frontal band by a double spherical joint with flexible rotation, and the joint is tightened to the extent that the mirror can turn flexibly without loosening. Wear the searchlight in the medical ENT instrument in the forehead, adjust the mirror parallel to the frontal surface, the central mirror hole should be facing the right or left eye of the examiner, first let the light source projected onto the medical ENT instrument, then adjust the mirror so that the light reflects and focuses on the inspection site, at this time the examiner's vision to the front through the mirror hole, see The focus of the reflected light beam is seen. Because it is convenient for light, it is mostly used in surgery. In general, the focus is on the tip of the nose, the throat on the uvula, and the ear on the external auditory canal.

Precautions when using medical ENT instrument diagnostic set:

①Pupil, mirror hole, reflective focus and examination area should be kept in a straight line to make the examination area bright and clear. ②Posture is correct during the examination, do not twist the neck, bend over, or accommodate the light source. ③medical ENT instrument and the examination site should maintain a certain distance, should not be too close or too far. ④ light source projection direction and medical ENT instrument distance, medical ENT instrument reflective angle should be carefully adjusted accurately, otherwise affect the effect.

Third, the inspection equipment

Alcohol lamp, dirty basin, sterilized gauze, sterilized cotton, etc. are also available.

Fourth. Commonly used drugs and dressings

Ephedrine, epinephrine, hydrogen peroxide, phenol glycerin, gentian violet, gauze, cotton balls, cotton sheets, petroleum jelly gauze, etc.

Fifth. Posture during examination

The patient and the examiner are sitting opposite each other, with each leg slightly to the side. The examinee sits upright, leans back against the back of the examination chair, leans forward slightly, waist straight, head straight. When examining a child, the parent can hold the child in their arms, clamping the patient's legs to the child's legs, holding the head in front of the chest with one hand, and holding the two upper limbs and body with the other hand.

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High quality & Desk type LCD Display Mercury Sphygmomanometer

Precautions for use of the Desk type LCD Display Mercury Sphygmomanometer

1. Avoid subjecting the Desk type LCD Display Mercury Sphygmomanometer to strong impact and measure blood pressure in strict accordance with the method of use of the Desk type LCD Display Mercury Sphygmomanometer.

2. When there is a failure such as zero position inaccuracy, bubbling or interruption of the mercury column, it is not advisable to disassemble it by yourself, but stop using it immediately and send it to the professional maintenance department for repair.

3. If there is mercury spillage, the mercury should be collected immediately and put into a good seal in the porcelain jar. For the collection of tiny mercury with difficulties, you can sprinkle some sulfur powder to generate mercury sulfide to prevent the evaporation of mercury. After each measurement, the Desk type LCD Display Mercury Sphygmomanometer should be tilted 45 degrees to the right to allow the mercury to flow back into the mercury storage bottle, while closing the mercury storage bottle.

Selection of Desk type LCD Display Mercury Sphygmomanometer

Sintrue Medical Instruments Co, Ltd has advanced manufacturing equipment and superb production technology, our Desk type LCD Display Mercury Sphygmomanometer is simple in structure, durable, stable and more accurate in measuring blood pressure values. Our company is your preferred choice for medical equipment, whether for hospital clinics or for home use.

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How to measure blood pressure correctly？

Principle of Desk type LCD Display Mercury Sphygmomanometer

The Desk type LCD Display Mercury Sphygmomanometer is the most widely used and most numerous type of Sphygmomanometer used to measure human blood pressure. The Mercury Sphygmomanometer is a Desk type LCD Display used to measure blood pressure by auscultation. The Mercury Sphygmomanometer consists of a balloon, a cuff, and a manometer. The rubber capsule of the cuff is connected to the balloon and the manometer respectively, and the three form an airtight tube system. There are two types of manometers: mercury column type and spring type. When measuring blood pressure, the balloon is first inflated and pressurized into the cuff wrapped around the upper arm, and the pressure acts on the brachial artery through the soft tissue. When the added pressure is higher than the heart systolic pressure, the balloon slowly deflate outward, the pressure inside the cuff that is then falling, when the pressure inside the cuff is equal to or slightly lower than the heart systolic pressure, with the heart contraction ejection of blood, blood can open the blocked blood vessels to form a vortex, with a stethoscope will begin to hear the sound of pulsation, at this time the pressure value indicated by the manometer, that is, equivalent to the systolic pressure. When the pressure in the cuff is lower than the systolic pressure, but higher than the diastolic pressure, the sound can be heard once for each contraction of the heart. When the pressure in the cuff is lowered to equal or slightly lower than the diastolic pressure, the blood flow will be smooth again and the sound accompanying the heartbeat will suddenly become weaker or disappear, at which time the pressure value indicated by the manometer is equivalent to the diastolic pressure.

How to use the Desk type LCD Display Mercury Sphygmomanometer

1. To reduce physiological changes during blood pressure measurement, take the blood pressure in a quiet and warm room, make sure the patient has not eaten, smoked, consumed coffee or had a full bladder for a short period of time, and explain the method of blood pressure measurement to the patient to reduce the patient's anxiety.

2. The patient should be seated with the back resting on the back of the chair, legs uncrossed and feet flat. Whether the patient is in sitting or supine position, the midpoint of the upper extremity should be at the level of the heart, and rest for 5 minutes after assuming the position.

3. Place the balloon in the center of the brachial artery, wrap it flatly and snugly around the arm, place the lower edge of the balloon approximately one inch above the elbow, place the Desk type LCD Display Mercury Sphygmomanometer in a straight line parallel to the field of view, and tell the patient not to speak during the measurement.

4. Set the maximum distension level (the estimated systolic pressure value reading plus 30 mmHg is the maximum distension level).

5. Quickly release the air in the cuff and wait 30 seconds before re-inflating.

6. Insert the stethoscope, making sure it is placed in the forward direction.

7. Gently place the stethoscope tip over the accessible brachial artery, but seal it, being careful not to place any part of the stethoscope end under the blood pressure cuff.

8. Inflate the air bag rapidly to inflate it to its maximum level.

9. Slowly release the air so that the pressure decreases smoothly at 2 to 3 mm/sec.

10. Record two consecutive sounds in the cords phase one i.e. systolic pressure.

11. Record coxswain's tone stage one i.e. diastolic pressure.

12. Continue listening until 10 mm Hg below the diastolic pressure, after which deflate completely and rapidly.

13. Wait one or two minutes for a repeat blood pressure measurement in the same arm.

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Sintrue medical home hospital electronic blood pressure meter

The principle of home hospital electronic blood pressure meter

The principle of home hospital electronic blood pressure meter uses the oscillometric method, which is accurate in principle, and its clinical validation is designed using the auscultatory method as a standard, using statistical methods. Oscillometric method).

The auscultatory method has its inherent disadvantages: first, there is a debate on whether diastolic blood pressure corresponds to the fourth or fifth phase, which leads to a large discriminatory error. The second is that the systolic and diastolic pressures are discriminated by listening to the Koch sound, and the readings are affected by a series of factors such as the physician's emotion, hearing, environmental noise, and the stress of the subject, which can easily introduce subjective errors and are difficult to standardize.

Although the home hospital electronic blood pressure meter made by the principle of auscultation method has achieved automatic detection, it still has not completely solved its inherent shortcomings, namely, large error, poor repeatability, and susceptible to noise interference. The vast majority of blood pressure monitors and automatic home hospital electronic blood pressure meters use the oscillometric method to indirectly measure blood pressure. The oscillometric method of blood pressure measurement discriminates blood pressure by establishing the relationship between systolic, diastolic, and mean pressures and the cuff pressure oscillation wave. It is important to note that there is no question of which of the two indirect measurement methods is more accurate in terms of the measurement principle, and therefore it does not mean that the results measured by auscultation using a mercury manometer are more accurate than those measured by the home hospital electronic blood pressure meter. Of course, it would be wrong to assume that the results of the home hospital electronic blood pressure meter are more accurate than those of the auscultation method using a mercury manometer.

 The clinical validation of the home hospital electronic blood pressure meter was designed using the auscultation method as the standard and using statistical methods. This does not mean that the results of auscultation with a mercury manometer are more accurate than those of the home hospital electronic blood pressure meter. Of course, it is not necessarily true that the results of the home hospital electronic blood pressure meter are more accurate than the results of the auscultation method using a mercury manometer. The mercury blood pressure meter used by doctors in hospitals is only a pressure measurement tool. The idea that a mercury blood pressure meter is an accurate blood pressure meter is one-sided, because a mercury column blood pressure meter is only a manometer, and the focus is on the physician's auscultation through a stethoscope. Today, the home hospital electronic blood pressure meter is fully automated and intelligent, and the measurement data is automatically transmitted to the health management platform through the network, and a health data report is generated and sent back to the user. The measurement results are also more accurate than the traditional home hospital electronic blood pressure meter due to the use of more advanced technology.

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Are the results of home hospital electronic blood pressure monitors more accurate than those measured with mercury pressure gauges?

The concept of home hospital electronic blood pressure meter

The home hospital electronic blood pressure meter is a medical device that uses modern electronic technology and the principle of indirect blood pressure measurement to measure blood pressure.Home hospital electronic blood pressure meter is mainly used at home. Home health care has become a modern health care fashion. In the past, people must go to the hospital to measure blood pressure, but now as long as they have a home hospital electronic blood pressure meter, sitting at home can monitor the changes in blood pressure at any time, home hospital electronic blood pressure meter is simple to operate, easy to carry.

The home hospital electronic blood pressure meter is simple to operate, easy to carry, intelligent inflation and deflation, automatic shutdown, one minute to measure the blood pressure value, the accuracy is close to the mercury sphygmomanometer, the popular application of home hospital electronic blood pressure meter preferred automatic home hospital electronic blood pressure meter. if the blood pressure is found to be abnormal, you can go to the hospital in time for treatment, play a role in preventing cerebral hemorrhage, heart failure and other sudden onset of disease.

Home hospital electronic blood pressure meter classification method

Home hospital electronic blood pressure meter has arm type, wrist type, watch type; its technology has experienced the development of the most primitive first generation (mechanical fixed speed exhaust valve), the second generation (electronic servo valve), the third generation (pressurized synchronous measurement) and the fourth generation (integrated gas circuit).

Home hospital electronic blood pressure meter usually consists of obstruction cuff, sensor, inflation pump, measurement circuit. It is an electronic device that measures blood pressure using the oscillometric method, the Koch sound method, or a similar non-invasive blood pressure indirect measurement principle.

There are 3 forms of home hospital electronic blood pressure meter, one is arm type, the other is wrist type, and the third is finger type. These three forms of home hospital electronic blood pressure meter, including the finger type home hospital electronic blood pressure meter, even for healthy people, has been proven not to use. It should be especially noted that the wrist type home hospital electronic blood pressure meter is not suitable for patients suffering from blood circulation disorders, such as diabetes, hyperlipidemia, hypertension and other diseases that accelerate arteriosclerosis, thus causing peripheral circulation disorders. These patients' wrist and upper arm blood pressure measurement values differ greatly. It is recommended that these patients and the elderly should choose an arm type home hospital electronic blood pressure meter to use. In addition, you should take a field measurement before purchasing in order to choose the right home hospital electronic blood pressure meter for you.

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Multifunctional otoscope inspection glasses set

How to apply the ophthalmoscope

When examining the rest of the fundus, the subject should be able to rotate the eye to cooperate with the examination, and the examiner moves the position around the subject's head, and the handheld LCD Display Digital Chargeable Otoscope Ophthalmoscope Set and the examiner's head move with it. The images examined are opposite up and down, and also opposite left and right. To examine the peripheral part of the fundus, such as the 6 o'clock orientation, the examiner is positioned at the top of the subject's head and the affected eye is made to look down at the 6 o'clock orientation. The metal scleral compressor is worn on the middle finger or index finger of the examiner's right hand, and the head of the compressor is placed outside the corresponding eyelid of the examined eye, and if necessary, the conjunctival sac is examined after epiretinal anesthesia. During the examination, attention should be paid to the patient at any time to close the eyelid to moisten the cornea, when suspected of intraocular occupying lesions, do not compress the examination.

Examination methods of ophthalmoscopy

Direct examination method

The fundus image can be magnified about 15-16 times, and the image seen is positive, the fundus can be seen in a small range, but more detailed and detailed, and can also be used to examine the refractive interstitium of the eye conveniently. The LCD Display Digital Chargeable Otoscope Ophthalmoscope Set, which comes with its own light source, can be used to correct the refractive error of the examiner and the subject during the examination.

Indirect Examination Method

The indirect ophthalmoscope can magnify the fundus by 4.5 times, and the image seen is an inverted real image, which can be seen in a wide range, up to 25°～60° at a time, with a strong sense of stereo and a wide depth of field. With the scleral compressor, the most peripheral parts of the fundus such as the serrated edge and even the flattened part of the ciliary body can be seen. The ophthalmoscope is equipped with a translucent, semi-reflective lateral mirror that can be used for teaching purposes.

The LCD Display Digital Chargeable Otoscope Ophthalmoscope Set is equipped with a strong light source and a focusing adjustment system, so that the projected light can be close to the left and right eye line of sight of the examinee, so that the examinee can observe with both eyes.

During the examination, the examinee takes a sitting or lying position, the examination distance is about 50cm, the examiner holds the +13D - 28D lens with the thumb and index finger, the ring finger and pinky finger lean on the forehead of the examinee as a support, and lift the upper lid, the lens moves in front of the examinee within 4-9cm until the fundus image is seen.

The LCD display digital rechargeable otoscope ophthalmoscope set manufactured by Sintrue medical instrument in Ningbo is the preferred choice for hospital medical clinics.

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LCD Display Digital Chargeable Otoscope Ophthalmoscope Set

Types of otoscope

otoscope can be divided into two kinds of direct otoscope and indirect otoscope.

Direct ophthalmoscopy

Direct ophthalmoscopy can directly examine the fundus, without dilating the pupil, in a dark room for examination, the examiner's eye must be close to the patient's eye, with the right eye to examine the patient's right eye, the right hand holding the ophthalmoscope, sitting or standing on the right side of the patient, the left eye is the other way around, the doctor's other hand to open the patient's eyelid, first placed the ophthalmoscope in front of the patient about 20cm, with +10D lens to check whether the patient's refractive interstitial transparency If the doctor is orthoptotic or has corrective lenses, the refractive power used to see the fundus indicates the refractive condition of the examined eye. Generally, the eye is first made to look straight ahead to examine the optic papilla, then along the retinal vessels to examine the superior and inferior temporal, superior and inferior nasal quadrants, and finally the eye is made to look to the temporal side to examine the macula. The size of the fundus lesion is expressed by the diameter of the optic papilla, and the degree of concavity of the lesion is measured by the refractive index of the lens, which is equivalent to 1mm in 3D. Some examining glasses have a green filter for better observation of the optic nerve fibers and macula.

Indirect otoscope

Indirect otoscope must be fully dilated pupil, in the dark room, the doctor turn on the power, adjust the distance and the position of the reflector, start with a weaker light observation, see the corneal, crystal and vitreous turbidity, and then the light directly into the pupil of the examined eye, and let the examined eye look at the light source, generally with +20D objective lens placed in front of the examined eye 5cm, the convex side of the objective lens to the examiner, the examiner to The objective lens is placed at 5 cm in front of the examined eye, with the convexity of the objective lens facing the examiner, the examiner holds the objective lens in his left hand and fixes it at the orbital rim of the patient, the examined eye, the objective lens and the examiner's head are fixed, when the optic papilla and macula are seen, the LCD Display Digital Chargeable Otoscope Ophthalmoscope Set is moved toward the examiner, and the stereo image of the optic papilla and macula can be clearly seen at 5 cm in front of the examined eye. The inverted image of the optic papilla and macula can be clearly seen at 5cm in front of the examined eye.

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Tympanic otoscope

Tympanic otoscope

An otoscope is an amplifier installed at the back end of a funnel-shaped ear speculum, which is connected to a rubber ball through a thin rubber tube on one side of the speculum.The otoscope can be used to observe the mobility of the eardrum and small perforations in the eardrum. During the examination, the light reflected from the frontal mirror and the light from the otoscope are used for observation. An appropriately sized pneumatic otoscope is placed in the external ear canal, and care is taken to keep the otoscope close to the skin of the external ear canal, and then by repeatedly squeezing and relaxing the rubber ball, positive and negative pressures are alternately generated in the external ear canal, causing relative movements within and outside the tympanic membrane. When fluid accumulates in the tympanic chamber or the tympanic membrane is perforated, the tympanic membrane activity decreases or disappears, and when the eustachian tube is abnormally open and the tympanic membrane is thin, the tympanic membrane activity increases significantly. A tympanic otoscope can also detect small perforations and allow pus, which is not easily visible, to flow out through the perforations by negative pressure suction. In addition, Otoscopy can also be used to check the mobility of the stapes footplate, the presence of fistulas in the labyrinth, and to perform tympanic membrane massage.

Otoscopic examination

The subject sits upright with the upper body slightly tilted and the head turned to the opposite side. The examiner focuses the reflection of the headlamp or frontal mirror on the appropriate position and gently adjusts the subject's head position to fit the external auditory canal opening to the light. In adults, the auricle is pulled slightly backward and upward to straighten the canal (in children, it is pulled backward and slightly downward) so that the deeper part can be seen. Pay attention to whether or not the subject feels any pain during the pull. If there is cerumen in the ear canal, it should be removed. If the ear canal cannot be seen in its entirety, a suitable otoscope or otolaryngoscope can be placed for closer inspection.

Precautions for Otoscopy

1.Before the examination, it is necessary to know if there are any serious heart and lung function abnormalities and other diseases.

2.Pay attention to the dosage of bupivacaine, usually no more than 50mg in total, to prevent bupivacaine poisoning.

3.During the examination, be careful not to damage the wall of the external ear canal, observe the patient closely, and inform the doctor to stop the examination immediately if there is any abnormality and deal with it accordingly.

4.Strictly implement aseptic technique during the operation and take care not to contaminate sterile instruments.

5.Patients with examination complications should be kept in hospital for observation depending on their condition.

6.Do health education after the examination, instruct the patient to avoid digging the ear with hands, prevent sewage from entering the ear, do not swim, follow up regularly in the outpatient clinic, and consult the doctor promptly if there is any foreign body.

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Clinic Hospital Medical Diagnostic Set Professional Otoscope

Definition of otoscope

Clinic hospital medical diagnostic set professional otoscope is a lumpectomy instrument for the examination or surgical evaluation of the external auditory canal, tympanic membrane, middle ear, etc. The otoscope can observe areas not easily observed by the surgical microscope, such as the superior and posterior femoral chambers, to detect middle ear lesions in a timely manner and reduce the recurrence rate of lesions. Advantages include non-invasive, high resolution images in the ear, high illumination function, and high diagnostic rate, which allows clinicians to grasp specific subtle lesions in the ear and provide timely treatment options for patients.

Video otoscopy

Video Otoscopy is one type of otoscope that takes pictures or records images of the tympanic membrane and external ear canal. otoscopy is a method of examining subtle lesions that cannot be detected by the naked eye, and is especially important in areas where there is a lack of a frontal mirror reflecting light source. The method involves turning on the light source and slowly inserting the front end of the otoscope into the outer 1/3 of the external ear canal to observe the pattern of the tympanic membrane. The otoscope does not require any other light source and is particularly suitable for bedridden patients and infants. The otoscope is an otoscope with its own light source and magnifying glass and is placed into the external ear canal as in the ear speculum method. It is convenient for infants and bedridden patients, and is especially important in areas where there is a lack of reflective otoscopic light.

The otoscope is one of the diagnostic otoscope sets, which are commonly used for examining the external auditory canal and tympanic membrane, and are shaped like funnels with different caliber sizes, forming a set that is chosen according to the diameter of the patient's external auditory canal. During the examination, an ear speculum of appropriate diameter should be selected according to the diameter of the external auditory canal. The examiner pulls the auricle with one hand to straighten the external auditory canal and gently places the speculum into the external auditory canal with the other hand. Because only a part of the tympanic membrane can be seen through the speculum, the speculum should not exceed the outer 1/3 of the external auditory canal, so that it can be easily moved up and down and around to see the whole tympanic membrane; at the same time, it can also avoid pain and coughing caused by pressing the bone too deeply.