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What are trocar or trocar cannula punctures

Normally a trocar is a  a sharp-pointed instrument equipped with a cannula; used to puncture the wall of a body cavity and withdraw fluid, gas or establish a working port to introduce an endoscope during laparoscopic, endoscopic surgeries or open surgeries.


Trocars are best known for the application in laparoscopic (also known as keyhole) surgery. By using a trocar, surgeons are able to access the abdomen or peritoneal cavity. Physicians also employ trocars in treating ascites and hydrothorax, and for the implantation of slow-release hormone pellets beneath the skin. 

A trocar puncture device is a single use surgical instrument, it consists of a cannula, a shaft and a seal.

How does a trocar look? Some pictures in the markets to show you.

A laparoscopic optical trocar cannula puncture

Laparoscopic trocars

A laparoscopic optical bladeless trocar cannula puncture

What kind of trocars do we offer?

UpwellMedical supplies both single use sterile bladeless trocar also disposable bladed trocars in China. As regards to bladeless trocars, they deliver safe entry of the cavity with common bladess trocars and optical trocars.

Upwell laparoscopic optical trocars consist of a optical tip, which allows a camera in and make the puncture visible, it provide high safety for a puncture. It is very welcomed by surgoens both in China and other countries.


What trocar size do you have

UpwellMedical  trocars cover wide range of sizes

Trocar Cannula Diameter 5mm, 10mm, 12mm, and 15mm 

Trocar puncture Working length 75mm, 90mm, 100mm and 110mm 


What is the use of the trocar punctures

A trocar puncture device consists of three main sections: 

optical obturator
  • The obturator.
  • This is the mechanism that enables the cannula to make the initial penetration into the abdomen.
trocar seal cap
  • The seal.
  •  This is found at the top of the cannula and ensures that no air escapes from the abdominal cavity while allowing any necessary equipment to be passed through. If air pressure is not properly maintained during laparoscopy, this can impede the surgeon’s view of the area being operated on.
trocar cannula
  • The cannula.
  • This is the shaft that is inserted into the patient to estalish access for opertion instrument to the abdominal cavity.

Laparoscopic technology and methods are continually improving and evolving, with modern innovations making this technique even more popular.

The Benefits of Laparoscopic Surgery
Currently laparoscopic surgery is a common surgical approach, through small incisions combined with specially adapted instruments to examine the organs located in the abdomen. Diagnostic laparoscopy minimizes scarring and distress to the patient. Recovery from laparoscopic surgery tends to be faster and there is less pain than with traditional surgical methods, and many procedures such as hernia repairs, gastric bypass, and organ removal, are all typically carried out laparoscopically. As well as offering many benefits to the patient, laparoscopy is also useful for doctors, who are able to see directly inside the body in real time without the need to perform open surgery. In addition, they can collect biopsy samples using this method when needed.

A patient may be advised to have a laparoscopy to examine:

The appendix
The gallbladder
The liver
The pancreas
The small and/or large bowel
The spleen
The stomach
The pelvic area
The reproductive organs
Diagnostic laparoscopy will allow the doctor to look for any unusual masses or tumors; fluid build-up in the abdominal cavity; liver disease; and how far a cancer has progressed. In addition, it can also demonstrate how effective a particular treatment has been.through


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