Hemostats are also called blood vessel forceps and are used for controlling hemorrhage. These forceps may have both curved and straight tips or beaks and there is a locking device on the handle to keep them closed as these are used as vessel clamps. These forceps are also used in surgery to control hemorrhage by clamping or constricting blood vessels, for holding blood vessels and for blunt dissection.

Hormone is a chemical substance secreted from an organ or gland which can travel from one cell to another, through the blood or through nerves, to another part of the body.. The function of hormones is to serve as a signal to the target cells. The action of hormones is determined by the pattern of secretion and the signal transduction of the receiving tissue. Hormones are produced by every organ system and tissue type in a multicellular organism. They are secreted into the blood by endocrine organs. They are carried around the body in the blood system to target organs, which are controlled by specific hormones.

Humidity Detector monitors and displays the humidity & temperature of a room and provides a visual or audible alert when pre-set, user configurable points are met. It features built-in humidity & temperature sensor and max/min with reset function. Humidity detector is provided to monitor moisture levels in the air.

The heart catheter is a thin flexible tube. It is threaded through a vein or an artery into the heart. It allows the pressure to be measured at different sites in the heart and circulation and also permits blood samples to be taken to check oxygen levels at various places in the heart/lungs.

Heart monitor is a bare-bones CPU monitor that displays a beating heart. It is designed for various diagnostic, emergencies and monitoring service applications. It comprises a complete range of personal, 1-12 lead Tran telephonic devices for variable remote diagnostic and emergency service applications.

A holter monitor is a machine that continuously records the heart's rhythms. The monitor is usually worn for 24 hours during normal activity. It records electrical signals from the heart via a series of electrodes attached to the chest. These electrodes are connected to a small piece of equipment that is attached to the patient's belt, and is responsible for keeping a log of the heart's electrical activity throughout the recording period. It provides high quality ECG digital recording with no data compression.

Holter ECG monitors, cassette tape recorder is a recorder that record three electrical leads of the heart. A holter monitor is a portable ECG that can be worn for long periods of time to monitor heart abnormalities. It makes a hard copy of the graph of abnormalities. The main function of holter monitor is to document and describe occurrences of abnormal electrical behavior in the heart. These can be random, spontaneous, sleep-related or emotion- or stress-induced.

Holter ECG monitors, analog holter is a lightweight, compact and easy-to-operate monitor. This cassette recorder is designed for reliability in ambulatory ECG applications.

Holter ECG monitors, holter heart monitor is a portable heart monitor that produces a record of heartbeats over an extended period of time. It is often used to identify problems undetected by a single electrocardiogram. It is connected to patches on chest. The monitor records hearts electrical impulses as daily activities.

Holter ECG monitors, 24-hour holter monitor is a type of portable heart monitor. The Holter monitor is a small portable electrocardiogram (ECG). The device is worn in a pouch around the neck or waist. It keeps a record of the heart rhythm, typically over a 24-hour period, while the patient keeps a diary recording their activities and any symptoms they may feel. The ECG recording is then correlated with the person's record of their activities and symptoms.

The heartwave system is used to perform a microvolt T-wave alternans (MTWA) test. A MTWA test requires an elevated heart rate to provide an accurate result. The required heart rate of 110-120 beats per minute is achieved utilizing exercise as performed on a treadmill in a standard stress test. The heart rate can also be elevated through the use of pharmaceuticals or by pacing, during an electrophysiologic study, or using a pace maker.

A heart CT scan is a form of the familiar CT (or CAT) scans, which captures cross-sectional images of the heart at sub-second rates. This unique CT technology allows the detection of small amounts of calcium in the coronary arteries.

Helical CT scan is a special type of CT scan technique that involves continuous movement of the patient through the scanner with the ability to scan faster and with higher definition of internal structures. Helical CT scanning can permit greater visualization of blood vessels and internal tissues, such as those within the chest cavity. This form of scanner may be particularly helpful in the rapid evaluation of severe trauma injuries, such as those sustained in automobile accidents. A helical CT scan is also referred to as spiral CT scans.

Hypodermic needle is a hollow needle commonly used with a syringe to inject substances into the body. They may also be used to take liquid samples from the body, for example taking blood from a vein in venipuncture. It is used for instant delivery of a drug, or when the injected substance cannot be ingested, either because it would not be absorbed or because it would harm the liver. Hypodermic needles are normally made from a stainless steel tube drawn through progressively smaller dies to make the needle.

Hypodermic syringe is a piston syringe that is fitted with a hypodermic needle for giving injections. These are used with hypodermic needles to inject liquid or gases into body tissues, or to remove from the body.

Hypodermic syringes are used with hypodermic needles to inject liquid or gases into body tissues, or to remove from the body. Injecting of air into a blood vessel is undesirable, as it may cause an air embolism; preventing embolisms by removing air from the syringe is the reason for the familiar image of holding a hypodermic syringe upside down, tapping it, and expelling a small amount of liquid before an injection into the bloodstream. These type of syringes are reusable.