Harmonic instrument surgery

Types of harmonic instrument surgery

Harmonic instruments used in surgery are known for offering a high level of precision and efficiency. Below are the common types:

• Harmonic Scalpel

  A harmonic scalpels surgery device, also called ultrasonic surgical organ dissection and coagulation instruments, is a high-frequency (55 KHz) powered surgical instrument, which allows cutting and coagulating tissue simultaneously.

• Harmonic Curved Blade

  This blade is designed for a wide variety of tissue grasping and manipulation. Its curvature allows working with deep or shallow tissue layers. The blade oscillates at ultrasonic frequencies.

• Harmonic Straight Blade

  The harmonic straight blade, which is also called a linear blade, is designed for cutting soft tissue precisely. This blade's straight profile allows it to be primarily used in areas that are more accessible.

• Harmonic Fork Grasper

  The harmonic fork grasper is designed with two long, narrow prongs that fork into tissue for better visibility and grasping. It also has a thin profile that enables use in shallow surgical spaces.

• Harmonic Paddle Grasper

  This type of instrument is designed with two elongated, flat prongs, which efficiently grasping and manipulating tissue. The paddle shape provides a broad contact surface, which helps prevent crushing.

How to choose harmonic instrument surgery

It is important to consider the following factors when selecting surgical devices for harmonic surgery:

Tissue Type

The following instruments are commonly used when working with specific tissue types:

• Harmonic Scalpels: Soft tissues, including liver, and lungs.
• Cautery Pencil: Harder tissues
• Electrosurgical Devices: Soft and dense tissues.

Coagulation Needs

Coagulation needs depend on the specific procedure being performed. For instance, main vessels need strong coagulation.

Tissue Thickness

There are many ways to approximate tissue thickness during surgery. The safest approximation is the use of ultrasound imaging. Tissue type, previous surgeries, and injuries may also change its thickness.

Surgeon Preference

The surgeon's comfort level with specific tools and technologies is very important when choosing harmonic surgical instruments.

Procedure Type

In many cases, the choice of instruments will depend on the type of surgery being performed. For instance, complex oncology procedures will sometimes need more specialized tools compared to routine laparoscopic surgeries.

Tissue Contour

The shape and contour of the tissue to be dissected may determine which tools will be most appropriate for any given procedure. One good example is when working in dense or irregularly shaped tissues. Traditional tools may sometimes offer better visibility than others.

Specifications, maintenance, and repair of harmonic instrument surgery

It is important to consider the following maintenance and repair tips for surgical tools:

Technical Specifications

These instruments come with unique features, but they all have similar characteristics:

• Frequency output ranges from 20-100kHz.
• Amplitude is adjustable in order to suit various tissue types.
• Handpiece models are available for specific surgical needs.
• Power modes include cut-only, cut-coag, and coag only.
• Foot pedals control mode selection and intensity adjustment.

Maintenance

• Daily Maintenance: Routine maintenance should be done daily. However, it is important that such procedures are carried out by a certifiable person.
• Cleaning: The cutting edges of the instruments should be cleaned and disinfected as soon as possible after use.
• Sterilization: Instruments should be examined after cleaning to ensure there is no damage or visible dirt left behind.
• Repairs: Harmonics instruments part like blades should be sent for repair if they show there is wear and tear. Experienced professionals should conduct repairs.
• Calibration: Instrument calibration should be conducted by a certified technician. It should be done at least once a year.

How to replace

Below are the steps to take when replacing parts of these instruments:

• Diagnostic:Perform a diagnostic test on the instrument to identify the faulty components.
• Safety Precautions:The main power source should be turned off, and the device should be unplugged from the electrical outlet.
• Access:Carefully remove any outer casings or covers using appropriate screwdrivers or tools.
• Component Removal:Use appropriate tools to remove the damaged components from the device.
• Replacement:Get a new spare part and ensure it is compatible with the relevant device.
• Reassemble:The replaced components should be secured appropriately, and all covers or casings should be replaced carefully. Ensures everything is in the right place.
• Testing:Once reassembled, turn on the device and test the functionality of the replaced parts.

Product name and Fallback

Product name

Here is the product's name based on its function, benefit, features, and specification:

• Functional name: Harmonic scalpel
• Name based on the advantage:Ultrasonic harmonic scalpel
• International name: Ultrasonic scalpel
• Name based on the mechanism: Cautery electro cautery pen

Fallback

• In case of failure, it is advisable to have a conventional electrosurgical pencil on standby. This traditional tool uses electrical current to cut and coagulate tissue. It is very useful in situations where the harmonic scalpel is ineffective.

Q & A

Q1. What are the benefits of a harmonic scalpel?

A1. Harmonic scalpels offer many benefits, including precise tissue dissection, which reduces damage to surrounding tissues. Their ability to simultaneously cut and coagulate minimizes bleeding, improving visibility during surgery. This leads to cleaner surgical sites and quicker recovery times; patients often experience less post-operative pain and swelling.

Q2. What are the blades of a harmonic scalpel made of?

A2. Harmonic scalpel blades are typically made of stainless steel or titanium. They are chosen for their excellent biocompatibility, resistance to corrosion, and durability. These materials ensure that the blades withstand the high-frequency vibrations.

Q3. Is there a specific maintenance requirement for the harmonic scalpel blades?

A3. Yes, harmonic scalpel blades require specific maintenance to ensure their longevity and functionality. After each use, blades should be thoroughly cleaned to remove any tissue debris.

Q4. What is the operating principle behind the harmonic scalpel?

A4. A harmonic scalpel uses ultrasonic waves to generateHigh-frequency vibrations from the handpiece create an oscillating motion at the tip. This tip movement is what cuts through the tissue. As the tissue is cut, the ultrasonic waves also transfer heat to the tissue.

Q5. What should be done to keep harmonic scalpel blades sharp?

A5. It is impossible to fully prevent sharpening blades. There are a few ways to prolong their durability. Regular cleaning after use will prevent residue from accumulating. Avoiding contact with hard surfaces can also prevent nicks and micro-damage. Proper sterilization techniques.