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Vacuum is the relative low pressure generated by the pump removing liquids and gas from the suction side, and the pressure difference between the vacuum pump reservoir and the ambient pressure at the inlet to the tip of the handpiece draws fluids through the aspiration ducting.
A medical aspirator is a suction machine used to remove mucus, blood, and other bodily fluids from a patient. They can be used during surgical procedures but an operating theater is generally equipped with a central system of vacuum tubes. [1]
An example of a vacuum bandage Negative pressure system used in a surgical wound in the right knee and thigh. The little vacuum pump is shown on the left of the photo, as is a subcutaneous drain. The dressing type used depends on the type of wound, clinical objectives and patient.
The portable suction unit of an ambulance A dental vacuum system for central suction. In medicine, devices are sometimes necessary to create suction. Suction may be used to clear the airway of blood, saliva, vomit, or other secretions so that a patient may breathe. Suctioning can prevent pulmonary aspiration, which can lead to lung infections.
Vacuum or suction aspiration is a procedure that uses a vacuum source to remove an embryo or fetus through the cervix. The procedure is performed to induce abortion , as a treatment for incomplete spontaneous abortion (otherwise commonly known as miscarriage ) or retained fetal and placental tissue, or to obtain a sample of uterine lining ...
On the other hand, the vacuum extractor uses a small metal or silicon cap that exerts negative pressure on the fetal scalp to facilitate pulling of the infant. [20] Since vacuum extraction can cause less injuries to the mother than forceps-assisted delivery, it is the preferred technique in some countries.
A vacutainer blood collection tube is a sterile glass or plastic test tube with a colored rubber stopper creating a vacuum seal inside of the tube, facilitating the drawing of a predetermined volume of liquid. Vacutainer tubes may contain additives designed to stabilize and preserve the specimen prior to analytical testing.
The equipment consists of a plastic adapter, also known as a tube or needle holder/hub, a hypodermic needle and a vacuum tube. Under certain circumstances, a syringe may be used, often with a butterfly needle, which is a plastic catheter attached to a short needle. In the developing world, the evacuated tube system is the preferred method of ...