objective hemodynamic and exercise end points patients with hypertrophic obstructive cardiomyopathy: A comparison of Comparison of dual-chamber pacing versus septal myectomy for the treatment of

There is disclosed a lay-up head for applying elongate fiber reinforcement material to an application surface. The lay-up head comprises a guide eyelet through which elongate fiber reinforcement material is arranged to pass into the lay-up head. The guide eyelet has an eyelet rim forming a discontinuous contact surface over which elongate fiber reinforcement material is arranged to pass.