A guiding sheath or an introducing sheath refers to a thin tubular object placed around a catheter or similar object, which easily inserts or guides the catheter to the desired position.
Technical characteristics:
1. Elasticity: Usually made of high-strength materials, which have a certain degree of elasticity and flexibility, and can adapt to different puncture angles and depths.
2. Smoothness: The surface of the sheath is smooth, which can reduce tissue damage and improve the passage rate of the catheter.
3. Easy to fix: The guide sheath is usually equipped with a fixing device, which can be firmly fixed inside the body through fixing screws or buckles.
4. Diversification: The guide sheath has different models and specifications according to different needs and usage scenarios to adapt to various surgical needs.
5. Safety and reliability: The sheath undergoes strict quality control during production and use, and ensured to be safe and reliable through sterile packaging and disinfection treatment.
Configuration:
1. Outer sheath: As the main part of a sheath, it is usually made of plastic or metallic materials. The dia. and length of the outer sleeve vary as per models and specs, and can be customized.
2. Inner core: usually made of plastic or metallic materials. The dia. and length correspond to the outer sleeve and have a certain degree of elasticity and flexibility.
3. Fixing device: firmly fixed inside the body through fixing screws or buckles, and prevents it from falling off or shifting.
4. Connection tube: connected to the catheter to provide support and stability during the surgical process.
According to the characteristics and usages, can be divided into below categories:
1. Diameter: Ranges from 2F to 14F, models and specs can be customized.
2. Length: Usual length ranges from 10cm to 150cm, and can be customized.
3. Material: Includes plastic, metal, and composite materials.
4. Function: Such as double lumen sheath, single lumen sheath, & reinforced sheath, etc.
5. Application: Suitable for surgeries such as lungs, heart, biliary tract, blood vessels, etc.
Applications:
1. Cardiovascular intervention surgery: the sheath assists the catheter in entering the body, providing support and stability.
2. Vascular intervention surgery: the sheath helps the catheter pass through narrow channels or diseased areas to reach the desired location.
3. Urology: In urinary intervention surgery, the sheath helps the catheter enter the body and provides support and stability.
4. Hepatobiliary intervention surgery: the sheath assists the catheter in entering the body and protect surrounding tissues, blood vessels, and other structures.
5. Neuro intervention surgery: the sheaths assists nerve conduits in entering the body and provide stability and angle adjustment functions.
Material:
Sheath is made of PTFE, Pebax and stainless steel.
Dilator is made of PE.
Hydrophilic coating is made of PVP.
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