In 1991, Huang et al. of the Massachusetts Institute of Technology first used the developed OCT to observe the isolated human retina and optic disc.

 in 1995,it was officially used in ophthalmology. The initial clinical application of OCT is OCT1, with only 10 scanning procedures and 7 analysis procedures.

In 1997, the OCT2 scanning procedure was increased by 2 and the analysis procedure was increased by 4. In terms of retinal thickness measurement and RNFL thickness measurement, OCT2 has better repeatability, and the measurement of macular thickness has a variation value of <11μm.

In 2002, the appearance of Stratus OCT, namely OCT3, marked a new stage of OCT technology. OCT3 provided 18 scanning procedures and 19 analysis procedures, and the scan images of the macular area could identify more layers.

In 2006, frequency domain OCT appeared, faster scanning speed, higher resolution.

Our body is having blood that circulates throughout the body. It is the main part of our circulatory system. It carries hemoglobin, which is the only provider of oxygen to every cell of the body. But, due to various incidents, our body loses blood. We may face the accident, get an injury or have the low percentage of hemoglobin count in the body. In all these cases, transfusion plays a very important part. There are certain steps that both patients and doctors keep in mind during venipuncture. In the earlier days, the nurse directly takes the blood from the vein with the help of the needle. But, this process has lots of disadvantages.

A patient can face lots of problems when he or she is giving the blood. Moreover, when the patient is a small kid, he may move his hands at the time of vein puncturing. This creates lots of difficulties. Transfusion is difficult during some conditions when the patient is suffering from cancer, he is old, has shrinkage skin, he is restless, suffering from drug abuse, obese or he is a burn victim. Keeping in mind all these, the doctor should maintain some techniques to make the process successful.

1. The doctor suggests the patient not to eat heavy or drink alcohol while coming for transfusion. It is better not to drive the car alone while coming to the chamber. The patient should has constant calm mind when coming to the clinic.

2. When the patient comes in the clinic, he or she can sit quietly for some time to reduce the tension.

3. When the patient is ready, the nurse cleans the hands with gel cleanser or soap and water. This ensures no germ in the body.

4. The doctor does some of the special tests, and then the process of venipuncture is ready. The professional find the vein, but she punctures the vein with the help of the needle and draws the blood.

The use of the needle is becoming not as popular in these days as it is difficult to find the vein at times. One of the most effective ways to find the right place of the vein is by the help of a machine or the vein viewing system. There are various companies that offer this type of instrument for the doctors to make the process of venipuncture easier. This instrument is having lots of benefits as compared to the needle puncturing.

Godwin Moses is a reputed author and he writes various articles on medicine and various latest medical advancements. He suggests the doctors to use the right type of vein viewing system for the perfect blood transfusion.

Dry eye symptoms such as dry, irritated eyes, itchiness and burning, red eyes, can be quite annoying and distressing to many people. According to the American Academy of Ophthalmology, an estimated 3.2 million women age 50 and over and over 1.68 million men age 50 and over are affected by this eye condition. This condition also affects a smaller percentage of young people. If you are concerned about this eye problem, the good news is that certain changes incorporated into your lifestyle in terms of work habits, diet and drinking a lot of water, can reduce dry eye.

The risk factors for dry eye are generally associated with the following: age, gender,diet, work habits, environmental factors and climate. According to the American Optometric Association, in the case of dry eyes, the eyes do not produce a sufficient amount of tears to lubricate and nourish the visual system.

 Women are more prone to this eye condition due to the fact that hormonal changes in the body contribute to a decrease in tear production. Other risk factors include the excessive consumption of caffeinated beverages such as coffee,sodas, smoking, and excessive close up work at the computer. Individuals living in cold and winter climates are also prone to this eye problem.

In clinical practice, choroidal rupture caused by indirect external force is common. Blunt trauma can cause rapid deformation of the eyeball, leading to anterior and posterior compression and horizontal expansion of the eyeball. Collagen rich sclera and flexible retinal tissue rarely rupture, while bullet free RPE, Bruce membrane and choroidal capillaries are easy to rupture.

The incidence of choroidal rupture accounts for 5%~10% of cases of blunt eye injury, 80% of which occurs in the temporal side of the optic disc or involves the fovea. Histopathology shows choroidal rupture accompanied by hemorrhage, fibrovascular tissue proliferation and RPE proliferation. The retina may have simple loss of outer tissue or continuous interruption of the whole layer of tissue, and the final rupture area will be healed by the reaction of fibroglia.

Traumatic macular hole occurs in about 1.4% of patients after blunt eye injury, which may be the result of combined effects of trauma, cystic degeneration, vascular factors, vitreous traction and other factors, usually formed a few days after injury. Some cases can heal after 6 months, most of them are young people. There is no liquid accumulation at the hole edge, glial cells or RPE cells proliferate at the hole edge, and fill the gap.

But many scholars believe that waiting for self-healing is not a good policy.

Nowadays, OCT inspection is more convenient and fast. The changes of the rupture site before and after surgical treatment can be viewed more . In fact, not only choroidal rupture or macular hole, but also fundus diseases caused by some systemic diseases can be and analyzed through OCT examination, which not only brings clearer examination reports to patients, but also provides more accurate basis for doctors’ clinical diagnosis. It can be said that it plays a “connecting role” examination and treatment.

The importance of an annual eye exam cannot be overstated.  Not only does it help you keep tabs on any changes in your vision, but it’s a must for detecting the big vision thieves: glaucoma, cataracts and age-related macular degeneration (AMD), all of which can cause irreparable harm before you’ve even noticed any vision loss.

Bad habit 1: Smoking

Bad habit 2: Staring at your smartphone

Bad habit 3: Not wearing sunglasses

Bad habit 4: Sleeping in your contact lenses

Bad habit 5: Rubbing your eyes

Bad habit 6: Sleeping with your makeup on

Bad habit 7: Heavy drinking

If you have these bad habits, be sure to go to the hospital in time to have your eyes examined.

ZD Medical blood vessel Imager adopts self-developed patented technology to detect subcutaneous superficial veins by infrared ray, and projects Vein Finder System images in real time and in situ on the skin surface, so that medical personnel can check the distribution and direction of blood vessels as needed.

Real-Time Visualization:
1.Projects a live image of the veins directly onto the skin for easy targeting.
2.Provides dynamic updates as the device moves, ensuring accurate alignment.

Safety Features:
1.Non-invasive and radiation-free, ensuring patient safety.
2.Designed for use on all skin tones and in various lighting conditions.

User-Friendly Interface:
1.Intuitive controls with touchscreens, voice assistance, or automatic adjustments.

Applications
Healthcare Settings:
Assists in venipuncture, IV line placement, and other vascular access procedures.

Emergency Medicine:
Useful in critical situations where quick vascular access is required.

Pediatrics and Geriatrics:
Particularly helpful for children, elderly patients, or those with fragile veins.

Home Care:
Supports healthcare providers in home-based medical procedures.

Benefits:
Reduces the need for multiple needle insertion attempts, improving patient comfort and safety.
Saves time for healthcare professionals.
Enhances procedural success rates, particularly in patients with difficult venous access (DVA).
Examples of New Generation Systems
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Tel : +86-137 3544 0201

Email : sales@zd-med.com
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ZD Medical  new generation latest upgraded version of split OCT + anterior eye segment function

Model: Optical Coherence Tomography Luminor-D60

LSO technology is used for fundus imaging, which accurately helps you to identify retinal diseases, helps screening and reduce the leakage of diseases in the initial examination, and can greatly improve the efficiency of clinical use.

The ZD Medical Optical Coherence Tomography Luminor-D60 is convenient, fast, clear, smooth and delicate. Equipped with professional analysis software, it makes OCT accurate and efficient in ophthalmic examination and analysis, and is a good helper for clinical diagnosis of fundus diseases.

Multiple functions:

Also welcome to contact us, we are ZD Medical Inc.

Tel : +86-137 3544 0201
Email : sales@zd-med.com
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It is very important to use the method of infusion for treatment. The following will introduce the skills of how to puncture the needle for infusion.

1.indistinct blood vessels

（1）The veins in patients with edema are often not obvious. It is better to press the local area with the finger according to the position of the vein flow to temporarily dissipate the subcutaneous water, and then puncture the vein after exposing the vein.

（2）In obese patients, the vein is deep and not obvious, but it is relatively fixed and does not slide. After finding the position of the blood vessel, the needle is deeply inserted at an oblique angle of 30°. After the blood is returned, the needle is slightly lifted and sent into the blood vessel.

The blood vessels of patients with chronic wasting disease are relatively fragile, and the needle should be inserted from the side of the blood vessel. When piercing, the direction of the needle should be parallel to the blood vessel, and the needle should not be too forceful when entering the blood vessel.

3.deflated vein

Angio OCT (Optical Coherence Tomography) is a non-invasive imaging technique used to observe the vascular structure and blood flow dynamics of the retina and choroid at high resolution. It combines the cross-sectional imaging capabilities of optical coherence tomography (OCT) with blood flow analysis and is widely used in the field of ophthalmology.



Working principle

The core technology of Angio OCT is to identify blood flow by detecting the scattering patterns of light signals over time, such as flowing red blood cells. This method produces three-dimensional images of blood vessels in the eye without the need for contrast injections.



Main feature

1. Non-invasive: Unlike fluorescent angiography (FA) or indocyanine green angiography (ICGA), Angio OCT does not require dye injection, reducing patient discomfort and risk.
   
   High resolution: The ability to produce high-resolution images of microvascular networks, especially in the retinal and choroidal capillary layers.
   
2. Fast imaging: The scanning speed is fast, and the entire inspection can be completed in a few seconds.
   
3. Three-dimensional imaging: The vascular structure of retina and choroid can be displayed in layers to more intuitively reflect the location of the lesion.
   
   Clinical application
   
4. Diabetic retinopathy:
   
   Capillary occlusion, microvascular abnormalities and non-perfusion areas were detected.
   
5. Age-related macular degeneration (AMD) :
   
   The morphology and dynamics of choroidal neovascularization (CNV) were observed.
   
6. Retinal vein occlusion:
   
   To evaluate ischemic and neovascularization changes due to vascular obstruction.
   
7. Glaucoma:
   
   The changes of blood flow in retinal nerve fiber layer were analyzed.
   
8. Mesoplasmic chorioretinopathy:
   
   The choroidal blood flow dynamics and leakage were examined.
   
   Technical limitation
   
9. Motion artifacts: The patient’s eye movement may cause image distortion.
   
10. Deep structural signal attenuation: The ability to image deep choroidal vessels is limited.
    

    3. Blood flow velocity dependence: Extremely slow or completely interrupted blood flow cannot be detected.

    

    Future development direction
    

    As the technology advances, Angio OCT continues to improve in terms of resolution, scan speed and signal processing, and may find more applications in a wider range of medical fields such as neurology or cardiovascular disease in the future.

    Also welcome to contact us, we are ZD Medical Inc.

    Tel : +86-137 3544 0201
    Email : sales@zd-med.com
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Optical Coherence Tomography (OCT) is a non-invasive imaging test that provides high-resolution cross-sectional images of tissues.  It is widely used in ophthalmology and other medical fields to assess various conditions.  Here’s what it typically



In Ophthalmology OCT is most commonly used to evaluate structures within the eye, particularly the retina and optic nerve, for the following conditions:



1.Retinal Disorders:

Macular Degeneration.

Diabetic Retinopathy: Ident.

Macular Hole: Helps.

Epiretinal Membranes.

2.Glaucoma:

Measures the thickness of the retinal nerve fiber layer to assess damage to the optic nerve.

Monitors disease progression and response to treatment.

3.Retinal Detachment and Tears:

Helps identify and evaluate the extent of detachment or any retinal abnormalities.

4.Central Serous Retinopathy:

Detects fluid accumulation beneath the retina.

5.Uveitis:

Evaluates the retina for swelling or other complications caused by inflammation.





In Other Medical Fields OCT is also used in other specialties:

1.Cardiology:

Evaluates blood vessels and plaques in coronary arteries during intravascular OCT imaging, which is used during procedures like angioplasty.

2.Dermatology:

Examines skin layers for early detection of skin cancer or other dermatological conditions.

3.Oncology:

Assists in imaging tissues for cancer diagnosis or during biopsies.

4.Dentistry:

Visualizes tooth and gum structures for cavities, periodontal disease, or other dental issues.

By providing detailed images of tissues, OCT aids in early diagnosis, monitoring, and management of many conditions.

Also welcome to contact us, we are ZD Medical Inc.

Tel : +86-137 3544 0201
Email : sales@zd-med.com
Whatsapp/Mobile : +86-187 9586 9515