Friday, February 18, 2011

POWERED SURGICAL INSTRUMENTS


SURGICAL ULTRASONIC EQUIPMENT
Instrument using high energy source for surgery.
It works through ease of dissection, and aspiration of soft tissue

- Ultrasonic techniques are well established in neurosurgery for rapid and efficient removal of intracranial and spinal cord tumors.
- This instrument is also used in resection, and dissection applications of:

(a) Liver,
(b) Kidney, and
(c) Spleen.

- Their application is also gaining popularity in pancreatic and urologic surgery.
Ultrasonic surgery is carried out with the aid of a special instrument known as the CUSAtm (Cavitron TM Ultrasonic Surgical Aspirator).
- This is an acoustic vibrator which consists of three distinct components.

• Transducer: A device, that converts electromagnetic energy into mechanical vibrations. The transducer is composed of a stack of nickel alloy plates. A magnetic field is produced by a coil placed around the plates and causes mechanical motion of approximately 300 microns.
• Connecting body: Mechanically conveys the motions of the transducer to the surgical tip. It also amplifies the vibration motion of the transducer.
• Surgical tip: Completes the amplifications of the motion and also contacts the tissue. For this reason the tip is relatively long compared to its diameter and this provides adequate motion amplification.

- The electric coil which is permanently fitted in the hand piece surrounds the transducer.
- This coil receives 23,000 cycles per second (hertz) alternating electric current from the console and activates the transducer.
- The hand piece is connected to the console by a cable which includes the tubing for circulating fluid between the cooling water canister in the console and the hand piece.
- Since the electric coil has a current flowing through it heat is generated and absorbed by the water circulating within the hand piece.
- This keeps the hand piece at a comfortable temperature for the surgeon.
Any questions be sent to drmmkapur@gmail.com
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3 comments:

  1. Hi,

    Surgical instruments have wide category. In all categories these instruments are well designed and the manufactured by the experts of their respective fields. The design and material of the products best cater the needs of surgeons. Thanks a lot...

    Sterilization Indicators

    ReplyDelete
  2. thanks for this valuable information i searched the internet for two days and couldnt find what you have so simply defined here thanks a lot
    it will be a great favor from you if you could mail me some more readings on CUSA i will be highly greatfull
    dr bilal masood
    surgical resident
    surgical unit 6
    civil hospital karachi
    pakistan

    my e mail adress is
    bil_doc@hotmail.com

    ReplyDelete
  3. Surgery treatment equipment are generally gadgets designed in a special way to perform specific features during a function to boost efficiency and success of the surgery.
    Surgical Instruments

    ReplyDelete