One Step Aortic Puncher


Project Id: D2022-31


Patients with coronary artery disease develop this disease often over a course of decades. Deposits high in cholesterol, commonly referred to as plaque, builds up in the coronary arteries causing inflammation. This disease tends not to be noticeable until significant blockage or a heart attack occurs. Coronary bypass graft surgery is one of the main treatments for coronary artery disease. However, coronary bypass graft surgery can be very intense as during the procedure the patient’s heart is stopped temporarily and they are put on heart-lung bypass machine. The known two-step process used to open the aorta in preparation for anastomosis is time-consuming, complicated, and involves using two separate devices to create the hole. Hence, there is a risk of different cut and punch diameters leading to a malformed punch geometry. Thus, it would be desirable to provide an improved structure for an aortic punch that is configured to open the aorta and punch a hole through the aorta wall in one step.

Invention Description

Researchers at the University of Toledo have developed a novel anastomotic device that combines both opening the aorta (or other vessels) and punching the hole in a one-step process. Our device and its variation can fit different vessel sizes. It is characterized by a triangular shaped blade that is strategically fixed to the punch. The chassis and overall design remain true to the market standard to ensure that surgeons who use our device will be able to operate it as smoothly as possible. The added blade will remove the initial step of requiring the surgeon to create an incision with a separate knife prior to the punch.


Treatment of coronary artery bypass surgery.


  • Eliminates steps needed to create a hole in the vessel, making the operation more stream-lined and efficient.
  • The process of creating a hole with our device is smoother and does not require negotiating the incision in the artery with a puncher creating a risk for dissection.
  • Eliminates the risk of incorrect geometry.
  • Our device could become the preferred method of aortic punch in an already potentially risky surgery.

IP Status: Patent Pending.

Patent Information:
For Information, Contact:
Katherine Pollard
Licensing Associate
The University of Toledo
Munier Nazzal
Abdullah Nasif
Nahidh Hasaniya