An electron gun for a camera tube includes an anode and a cathode. The cathode is assembled in a cathode support which can very readily be adjusted relative to the anode in the non-connected condition. In particular, the cathode support and the anode are movable radially with respect to each other and with respect to an axis. An emissive cathode surface and a part of the anode extending perpendicular to the axis remain accurately parallel to each other during the radial movement. As a result of this it is possible to cause the central path of the generated electron beam and the gun axis to coincide so that extra correction coils for aligning the electron beam may be omitted.

Cardiac Cath Lab means Cardiac catheterization Laboratory. Cath lab teams include highly skilled and specialized registered nurses, cardiovascular and radiological technologists. The Center provides digital imaging equipment that visualizes and detects coronary artery disease. The images can be stored in the system as a guide for immediate or later treatment of the disease process. State-of-the-art electrophysiology equipment is utilized by the cardiologist and staff to diagnose and treat advanced cardiac dysrhythmias (irregular cardiac rhythms).

Identification. A cardiopulmonary resuscitation board is a device consisting of a rigid board which is placed under a patient to act as a support during cardiopulmonary resuscitation.

Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter, subject to the limitations in 880.9. The device is also exempt from the current good manufacturing practice requirements of the quality system regulation in part 820 of this chapter, with the exception of 820.180, with respect to general requirements concerning records, and 820.198, with respect to complaint files.

Cardiopulmonary Device is a device used for assisting in cardiopulmonary resuscitations (CPR) that includes a top portion for receiving a manual force applied by a person performing such CPR and a bottom portion sized to fit within a breastbone area and intermediate a plurality of ribs extending outwardly from opposed side edges of such breastbone of a person receiving such CPR and which transmits the manual force exclusively to such breastbone to cause a predetermined movement of such breastbone towards a heart. A mouth cover is provided for preventing accidental reflux discharge of the person receiving such CPR. The device cover and a pair of gloves are provided as a convenient kit for use during CPR.

Cardiovascular system refers to a system of vessels that convey blood to and from tissues throughout the body, bringing nutrients and oxygen and removing wastes and carbon dioxide. It is essentially a long, closed tube through which blood moves in a double circuit-one through the lungs (pulmonary circulation) and one through the rest of the body (systemic circulation). The heart pumps blood through the arteries, which branch into smaller arterioles, which feed into microscopic capillaries (artery; capillary). These converge to form small venules, which join to become larger veins, generally following the same path as the arteries back to the heart. Cardiovascular diseases include atherosclerosis, congenital and rheumatic heart disease and vascular inflammation.