Laparoscope (camera)

lap camera and lensWhat is commonly referred to as the laparoscope is a combination of three devices, the lens, camera and a fiber optic cable system. The telescopic rod lens system is housed in a long telescope that is then connected to a camera.  The camera is connected to an image processor that will then project the image onto a monitor.  A digital laparoscope houses the image processor at the end of the telescope and precludes the need for a rod lens system.  All systems require a fiber optic cable system hooked up to a “cold” light source (Xenon or Halogen) to illuminate inside the abdominal cavity.

Trocars (Ports)

Minimally Invasive SurgeryFor the surgeon to access the abdominal cavity, long thin tubes (trocars/ports) are passed through the muscles of the abdominal wall after making a small skin incision.  The port also provides a way to fill the abdomen with CO2 in order to distend the abdominal cavity creating a working space.  The laparoscope and instruments can then be passed through the ports to begin the procedure.  Many different instruments are used throughout any given procedure.  The ports allow easy exchange of instruments.

General Instrumentation

grasper closeupIn general, the instruments used in laparoscopic surgery are a combination of three parts: handle, shaft and actuator.  There are several handles that are available and surgeon ease and comfort generally determines what handles are used. Regardless of design the handles are opened and closed to control the actuator.  The shaft is a long tube that connects the handle to the actuator.  The length of the shaft is generally 30-45 cm.  Instruments that utilize electrocautery must have an insulated shaft to prevent arcing and burns to tissue in contact with the shaft. The actuator is at the end of the shaft and is generally what makes one instrument different than another.  The actuator may be a grasper, scissors, biopsy forceps amongst many others.

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Graspers allow the surgeon to hold and manipulate organs or tissue. It is used like forceps in open surgery. Graspers are used in most laparoscopic procedures.


Dissector has a fine tip and is used for very delicate dissection. The angle of the tip varies from straight to a slight curve to a right angle (90 degrees).


Scissors are commonly used to cut tissue and sutures. The scissors can also be used for fine dissection.

Needle driver

Needle drivers are used to sew and tie sutures inside the abdominal cavity, still through small incisions. This is considered to be one of the hardest laparoscopic skills to master, and is one of the more recognizable instruments used by laparoscopic surgeons.

Cautery/Tissue sealing devices

There are several instruments that are used to cauterize and divide tissue available to the surgeon. Some forms utilize high frequency vibration to generate heat in order to keep tissue from bleeding.

Clip applier

The clip applier is used to ligate or occlude a blood vessel or other hollow tube. The clip applier is most commonly used in gallbladder surgery to ligate the cystic artery and cystic duct. This prevents bleeding or leakage of bile after the gallbladder is removed. The clips are made of titanium.

Stapling devices

Stapling devices are used to divide hollow organs or blood vessels. Staplers are used frequently in bariatric surgery. The stapler locks 6 rows of staples into the tissue and a blade is passed through the center of 3rd and 4th row simultaneously sealing and dividing. The length of the staple line as well as staple height varies between different cartridges. The surgeon will decide what staple cartridge to use dependent on the procedure. The staples are made of titanium.