ENDOVENOUS LASER TECHNOLOGY

The CoolTouch CTEV Technology
The CoolTouch Mechanism of Action

The CoolTouch CTEV is a Nd:YAG micro-pulsed laser with a 1320 nanometer wavelength, which targets water in the vein wall. The 1320 laser energy, which does not penetrate beyond a 2.0mm depth of penetration in the vein wall, is ideal for closing the vein without damaging the surrounding tissues or nerves.

Download the white paper: Long Term Experience with CoolTouch 1320nm Endovenous Ablation

ENDOVENOUS LASER TECHNOLOGY GLOSSARY

Artery
4665
11
Capillary
4668
2
Catheter
4669
3
Chronic Venous Insufficiency (CVI)
4674
10
Clot
4675
0
Collagen
4677
109
Color Duplex
4682
1
Compression Therapy
4683
3
Deep Vein Thrombosis (DVT)
4686
2
Deep Veins
4687
2
Dilation
4691
0
Doppler
4692
1
Edema
4693
6
Endovenous
4696
0
Hematoma
4704
0
Incompetent Valves
4706
2
Incompetent Vessel
4707
2
Laser Ablation
4708
1
Ligation
4709
0
Lumen
4713
0
Microphlebectomy
4714
2
Minimally Invasive
4715
1
Occlusion
4720
2
Paresthesia
4721
1
Perforator Veins
4724
2
Phlebectomy
4726
2
Phlebologist
4727
0
Prolapse
4734
1
Radiofrequency (RF) Ablation
4741
13
Saphenofemoral Junction
4743
3
Saphenous Vein
4744
1
Sclerotherapy
4746
1
Spider Veins
4749
2
Superficial Veins
4753
2
Thrombosis
4754
2
Thrombus
4755
1
Ulcer (venous)
4756
1
Ulceration
4757
0
Valves
4760
2
Valvuloplasty
4761
0
Varicose Veins
4762
14
Vein
4763
4
Vein Ligation and Stripping
4764
1
Venous Blood
4765
1
Venous Vessels
4766
0
Artery
An elastic blood vessel that transports oxygen-rich blood away from the heart; the veins carry oxygen-depleted blood back to the heart.
Capillary
Very small blood vessels that form an intricate network throughout the body for the interchange of various substances, such as oxygen and carbon dioxide.
Catheter
A slender device from 60 to 100 cm long used in Venefit™ Targeted Endovenous Therapy for the treatment of Chronic Venous Insufficiency (CVI). Once the device is inserted into a diseased vein, it delivers radiofrequency energy to heat the vein walls, causing them to gently collapse and seal shut.
Chronic Venous Insufficiency (CVI)
CVI is a progressive medical condition in which the valves that carry blood from the legs to the heart no longer function properly, causing blood to pool in the legs and the veins to expand, lose form and protrude from beneath the skin. Symptoms include swelling and fatigue of the legs, as well as skin changes and ulcers in more severe cases.1 A proven and highly effective treatment for CVI is the Venefit™ procedure.
Clot
A thick, viscous or coagulated mass of blood.
Collagen
The major protein in connective tissue that shrinks or thickens when heated.
Color Duplex
Ultrasound system that uses color to indicate the direction of blood flow. This is particularly helpful in visualizing and evaluating both the deep and superficial venous systems.
Compression Therapy
A therapy for Chronic Venous Insufficiency (CVI) that typically involves compression stockings with varying degrees of pressure to improve blood flow and reduce CVI-related symptoms, which include pain, swelling of the ankle or leg, leg fatigue, open sores and ulcers. Although this therapy may temporarily relieve symptoms, it does not address the underlying causes of CVI.
Deep Vein Thrombosis (DVT)
A formation or presence of a thrombus, or clot, within a deep vein.
Deep Veins
Non-surface veins in the leg that carry blood directly to the heart.
Dilation
Enlargement of a vein due to increased internal pressure.
Doppler
Ultrasound device that a technician may use to sense the presence or absence of flow in blood vessels.
Edema
Swelling or inflammation caused by the build-up of fluids in the body. Edema is a severe symptom that occurs in the legs and ankles of people suffering from Chronic Venous Insufficiency (CVI).
Endovenous
Within a blood vessel or vein.
Hematoma
A localized mass of clotted blood confined within an organ, tissue or space.
Incompetent Valves
See Incompetent Vessel.
Incompetent Vessel
A blood vessel that does not function properly. With Chronic Venous Insufficiency (CVI), the small valves inside the vein do not open and close completely, causing the blood to pool in the legs and the veins to swell, which contributes to edema (swelling) and leg pain.
Laser Ablation
An endovenous treatment for Chronic Venous Insufficiency (CVI) using laser energy. The heat from the laser creates a steam bubble inside the diseased vein, heating the blood and causing it to coagulate so that the vein closes. Some laser energy can reach temperatures of up to 700°C during treatment. Animal studies have shown that laser ablation can potentially lead to perforation and destruction, which can damage the vein walls, resulting in bruising and post-procedural pain for the patient.
Ligation
The surgical closure of a vessel with sutures or staples.
Lumen
The inside cavity of a tubular organ, such as a blood vessel or an intestine.
Microphlebectomy
See Phlebectomy.
Minimally Invasive
A treatment that minimizes injury and trauma to deep and superficial soft tissue in and around the body. See Venefit™ Targeted Endovenous Therapy.
Occlusion
The closure of a blood vessel.
Paresthesia
Numbness or tingling often associated with damage to sensory nerves.
Perforator Veins
Veins that serve as connections between the superficial veins and deep veins.
Phlebectomy
Developed in the 1950s, a phlebectomy involves removing diseased veins through a series of very small punctures or incisions with a variety of specialized hooks. It is typically used on varicose veins at or near the skin surface, and is a complementary treatment to the Venefit procedure.
Phlebologist
Physician who specializes in the treatment of vein disorders.
Prolapse
Condition in which the valves inside a vein are unable to close properly, causing blood to flow in the wrong direction.
Radiofrequency (RF) Ablation
A minimally invasive treatment for Chronic Venous Insufficiency (CVI) that employs radiofrequency energy to provide controlled and consistent heat to a diseased vein. The heat contracts the collagen in the vein walls, causing them to collapse and close shut.
Saphenofemoral Junction
The place near the groin where the saphenous vein and femoral vein intersect.
Saphenous Vein
The long saphenous vein is a large vein running from the ankle to the groin; the short saphenous vein runs up the back of the leg from the ankle to the knee. Problems with valves in these veins often contribute to the development of varicose veins and Chronic Venous Insufficiency (CVI).
Sclerotherapy
A treatment often used for tiny surface veins, such as spider veins. A vein specialist injects a liquid, such as highly concentrated saline solution, that destroys the vein lining and causes the vein to collapse in on itself.
Spider Veins
Small blood vessels near the skin's surface, which appear as tiny, twisted, purple lines.
Superficial Veins
Veins that are located just beneath the skin. Because they enjoy less support from adjacent muscles and bones, they can develop areas of weakness in their walls, and are more likely to develop into varicose veins and CVI.
Thrombosis
Formation or presence of a thrombus, or clot, within a blood vessel.
Thrombus
A blood clot that may block a blood vessel or be attached to the vessel without obstructing the interior.
Ulcer (venous)
A lesion on skin caused by the deterioration of tissue and inflammation, and is one of the more severe symptoms of Chronic Venous Insufficiency (CVI).
Ulceration
Formation of an ulcer or lesion on the skin.
Valves
Small flaps of tissue inside the leg veins that open and close to help control the flow and pressure of blood. The valves enable blood to flow against gravity from the legs back up toward the heart.
Valvuloplasty
Surgical placement of a series of sutures along the base of the valve. This can tighten valve components called "leaflets," reduce the vein diameter and prevent prolapse. General anesthesia is required, plus 3-6 days post-operative hospitalization and long-term therapy with anticoagulant drugs. Risks include deep vein thrombosis, infection and bruising. Success rates of 63%-80% have been reported for patients suffering from Chronic Venous Insufficiency (CVI).
Varicose Veins
Varicose veins are often thick, bulging veins that can protrude well beyond the skin’s surface. Often misunderstood as a cosmetic issue, varicose veins can progress to CVI, which is a more serious condition.
Vein
See Venous Vessels.
Vein Ligation and Stripping
Surgical treatments for severe cases of Chronic Venous Insufficiency (CVI) performed in combination under general anesthesia. To perform ligation, the surgeon ties off the diseased vein. The surgeon then removes, or strips, the diseased vein through two small incisions in the groin and calf. Recovery time is more extensive than with the minimally invasive endovenous ablation treatment options, which include radiofrequency (RF) ablation and laser ablation.
Venous Blood
Blood that has passed through the capillaries of various tissues other than the lungs. Venous blood is found in the veins, in the right chambers of the heart and in pulmonary arteries, and is usually dark red as a result of a lower content of oxygen.
Venous Vessels
Veins that carry oxygen-depleted blood to the heart; Arterial vessels carry oxygen-rich blood away from the heart.
ENDOVENOUS LASER TECHNOLOGY - CLINICAL PAPERS
01.05.2010
Carbonized blood deposited on fibres during 810, 940 and 1,470 nm endovenous laser ablation: thickness and absorption by optical coherence tomography.
01.02.2007
Duplex ultrasound investigation of the veins in chronic venous disease of the lower limbs--UIP consensus document. Part II. Anatomy.
01.12.2005
Endovenous Ablation of Truncal Veins.
01.04.2003
Endovenous laser treatment of the lesser saphenous vein with a 940-nm diode laser: early results.
01.12.2005
Endovenous treatment of the great saphenous vein using a 1,320 nm Nd:YAG laser causes fewer side effects than using a 940 nm diode laser.
01.01.2005
Extension of saphenous thrombus into the femoral vein: a potential complication of new endovenous ablation techniques.
ENDOVENOUS LASER TECHNOLOGY RESULTS
CoolTouch CTEV Treatment
Before
After
Photos: John Kingsley, MD
1

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