The LILAC System

1. This device will allow a physician to access a patient's left radial artery while remaining on the right side of the patient's body. The device must keep the catheter insertion site stable during the entirety of a cardiac catheterization procedure.

2. The device will aid in bringing the patient's left arm to the right side of the patient's body.

3. The device will be comfortable for the patient.

4. The device will be easy to use by nurses and doctors.

The Lockable Intravascular Left-hand Access for Catheterization (LILAC) System is a surgical table accessory designed for use during cardiac catheterization procedures that utilize the left radial artery as the insertion site. The LILAC device attaches to a standard hospital bed in a catheterization lab. A nurse or physician can adjust the height of the main table by turning a knob connected to a rack and pinion height adjustment mechanism. The LILAC System gives physicians and nurses the controlled and precise ability to move the patient’s left arm over to the right side of the patient’s pelvis. This position is optimal to ensure the cardiologist can access the insertion site throughout the procedure without having to reach over the patient and risk back pain and radiation exposure. Unlike other devices on the market, the LILAC System secures the arm in place to prevent arm drift during the procedure.

The LILAC System consists of a main table with an attached arm board and elbow support. Dimensions were chosen to hold the arm weight and size of up to the middle 95th percentile of the population. The device will be composed of carbon fiber and can be attached to all standard hospital beds.

Main Board

The main board is adjustable in height and angle. The height of the table is controlled by a simple rack and pinion set up designed to be easily controllable with a knob attached to a gearbox. On the back of the gearbox is a universal surgical table connection so an off-the-shelf connector is not required. The main board includes a slow down the center to attach the arm board.

Arm Board

The rotating arm board is secured with an ergonomic knob connected to a screw that runs vertically through the arm board and the slot in the table, and into the arm board handle which controls lateral position. While the system is unlocked, the arm board handle controls where the arm board is inside the table slot. When tightened, the rotating arm board and handle will sandwich the table, and the friction will lock it in place. The arm board includes disposable hand straps made from off-the-shelf medical Velcro attached to the end of the arm board meant to prevent the forearm from translating and rotating during the procedure.

Elbow Support

The elbow support is connected to a cylindrical shaft that attaches to a mount secured to the main table. Once the arm is in the correct position, the elbow cup will be advanced until it makes contact with the elbow and is then locked into place. This allows for a controlled, comfortable, and easy way to secure the arm and prevent left arm drift away from the physician.