Bagolini's striated lenses consist of two circular lenses in a metal frame with tabs for use by the examiner. It uses the power of fusion and to eliminate suppression by appropriate exercises until spontaneous diplopia.
The balloon catheter is usually inserted percutaneously through the femoral artery. These are used for temporary occlusion of large vessels, or to expand vascular prostheses. When a balloon catheter is used to compress plaque within a clogged coronary artery it is referred to as a plain old balloon angioplasty. These are also utilized in the deployment of stents during angioplasty. When the cardiologist subsequently deflates the balloon the stent stays behind in the artery and the balloon catheter can be removed. Stents that are used in conjunction with a balloon catheter are known as balloon expandable stents.