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Only by replacing sales with high-quality services is the best prescription for enterprises.

Only by replacing sales with high-quality services is the best prescription for enterprises.
This afternoon, the sales manager received a message from a Nigerian customer. A few short sentences showed his satisfaction with our after-sales service.

Although each product will undergo a series of inspections before shipment to ensure the performance, appearance, safety and other aspects of the machine’s quality. However, some customers will encounter some problems in use. And because of the distance, after-sales online technical guidance is particularly important.

After receiving this project of after-sales, our after-sales engineer Jackson contacted the customer as soon as possible to get the actual situation at first. Good after-sales service is premised on protecting the interests of customers, and Jackson knows this truth well. In this case, it is obvious that it is in the customer’s interest to restore the machine to use ASAP. Therefore, Jackson did not waste a bit of time, even working overtime until late at night to check the past data, and finally found a solution. In order to facilitate customers’ understanding, video connection and online guidance were adopted to finally make the machine resume operation.

All along, Dawei strives to provide customers with better services, attract customers with high-quality services, and retain customers with high-quality services.

What you need to know about transvaginal ultrasound

What you need to know about transvaginal ultrasound
A transvaginal or endovaginal ultrasound is a simple and safe way for doctors to examine the internal organs of the female pelvic region. An ultrasound uses high-frequency sound waves to produce detailed images of internal organs. Unlike X-rays, ultrasound has no radiation, which means it has no known side effects and is very safe. A medical professional uses ultrasound to create images of the inside of the body. High-frequency sound waves bounce off internal organs, forming these images.

A transvaginal ultrasound is an internal examination of the female reproductive system. It involves inserting a small ultrasound probe, called a transducer, into the vagina to create incredibly detailed images of the organs in the pelvic region. It may be necessary to use a transvaginal ultrasound to examine:
• vagina
• cervix
• uterus
• Fallopian tubes
• Ovaries
• Bladder

Transvaginal ultrasound can check:
• the shape, position and size of the ovaries and uterus
• the thickness and length of the cervix
• Blood flow through the organs of the pelvis
• the shape of the bladder and any changes
• the thickness and presence of fluids near the bladder or in:
o Fallopian tubes
o Myometrium, the muscle tissue of the uterus
o Endometrium

Doctors may order a transvaginal ultrasound for a variety of reasons. For example, it may be necessary to identify the cause of:
• Pelvic pain
• unexplained vaginal bleeding
• Infertility
• abnormal results of a pelvic or abdominal examination
These scans can also help diagnose:
• Benign growths like fibroids, cysts and masses
• pelvic inflammatory disease
• Endometriosis
• post-menopausal bleeding

In addition, he can check for the presence of an intrauterine contraceptive. Doctors may order a transvaginal ultrasound during pregnancy because it can help:
• Check fetal heart rate
• confirm the delivery date
• Assess the condition of the placenta
• Look for an ectopic pregnancy
• Monitor pregnancies at higher risk of pregnancy loss

What is a Doppler ultrasound?

What is a Doppler ultrasound?
Healthcare professionals use ultrasounds to examine internal structures, such as bones and organs. They use a Doppler ultrasound to analyze how well blood is flowing through the veins and arteries.

A Doppler ultrasound uses sound waves to create images of how a person’s blood is flowing through their veins and arteries. The goal is often to check blood flow through the arms and legs.
During a Doppler ultrasound, a handheld device emits sound waves that bounce off moving objects, such as blood cells. The reflected sound waves create an image of the way the blood is flowing.

There are several types of Doppler ultrasound:
-A color Doppler helps visualize the movement, speed, and direction of blood flow in color.
-A power Doppler is a newer form of color Doppler that provides more detail, but it cannot show in which direction blood is flowing.
-A duplex Doppler takes a standard image of a blood vessel and graphs the data.
-A spectral Doppler shows blood flow as graphed data, and it can show whether the blood flow is blocked.
-A continuous-wave Doppler sends a continuous stream of soundwaves, which allows the ultrasound to more accurately measure blood moving at faster speeds.

What is it used for?
Healthcare professionals use Doppler ultrasound to learn about a person’s blood flow, particularly whether there are any blockages or other irregularities.
The results can help doctors diagnose various conditions, including certain heart conditions.
For example, doctors use Doppler ultrasound to check for:
-blood vessel damage
-irregularities in the structure of the heart
-blockages, such as deep vein thrombosis
-narrowing or hardening of blood vessels, which can interrupt blood flow to the feet and legs
-superficial thrombophlebitis, which involves inflammation in a leg vein
-vascular tumors in the legs
-thromboangiitis obliterans, a rare disease that causes blood vessels in the hands and feet to swell
-any changes in heart function, often alongside an electrocardiogram
-any changes in blood flow following surgery
-any changes in blood flow during pregnancy or in the fetus

Why does a person need one?
A doctor may order a Doppler ultrasound if a person shows signs of reduced blood flow to the arms, neck, or legs.
The following, for example, can reduce blood flow:
-blood clots in veins
-blockages or narrowing of arteries
-injuries to blood vessels
Typically, a healthcare provider recommends a Doppler ultrasound if a person shows signs or symptoms of certain conditions, such as peripheral arterial disease. This occurs when fatty deposits collect in arteries, restricting blood flow.
Peripheral arterial disease can cause:
-coldness in the feet or lower parts of the legs
-weakness or numbness in the legs
-painful cramping in the leg muscles or hips while walking or climbing stairs
-changes in the color of the skin
-shiny skin on the legs
In other cases, a doctor may order a Doppler ultrasound if a person has symptoms of a heart condition, such as:
-shortness of breath
-swelling in the feet, legs, or abdomen
Generally, a doctor tends to order this type of ultrasound when a person:
-may have damaged blood vessels
-is currently receiving treatment for a blood flow disorder
-has recently had a stroke, in which case they will check blood flow in the brain, and the procedure is called a transcranial Doppler.

Also, if a fetus is smaller than expected, a Doppler ultrasound can look for any irregularities in blood flow.