## **Core Concept**
Fogarty's catheter is a medical device used in vascular surgery. It is specifically designed for the removal of thrombi (blood clots) from blood vessels. The catheter is named after its inventor, Dr. Thomas Fogarty.

## **Why the Correct Answer is Right**
Fogarty's catheter is utilized for **thrombectomy**, a procedure aimed at removing blood clots from occluded vessels. The device consists of a small inflatable balloon on the end of a catheter. When inserted into the vessel, the balloon is inflated to occlude the vessel distal to the clot, and then the clot is aspirated out. The mechanism relies on the inflatable balloon to trap the clot, allowing for its safe removal.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because Fogarty's catheter is not primarily used for dilation of strictures. Devices like balloons for angioplasty are used for such purposes.
- **Option B:** This option is incorrect as Fogarty's catheter is not used for measuring pressure within vessels. Devices like pressure transducers or specific types of catheters designed for pressure monitoring are used for this purpose.
- **Option C:** This option might seem plausible but is incorrect because while Fogarty's catheter does involve insertion into vessels, its primary and specific use is for thrombectomy, not just general insertion into vessels.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that Fogarty's catheter is a critical tool in the management of **acute limb ischemia** caused by thrombosis or embolism. Its use allows for rapid restoration of blood flow, potentially saving the affected limb.

## **Correct Answer:** C. Removal of thrombus.