obturator

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obturator

[′äb·tə‚rād·ər]
(anatomy)
Pertaining to that which closes or stops up, as an obturator membrane.
Either of two muscles, originating at the pubis and ischium, which rotate the femur laterally.
(medicine)
A solid wire or rod contained within a hollow needle or cannula.
(ordnance)
Assembly of steel spindle, mushroom head, obturator rings, and a gas-check or obturator pad of tough plastic material used as a seal to prevent the escape of propellant gases around the breechblock of guns using separate-loading ammunition, and therefore not having the obturation provided by a cartridge case.
A device incorporated in a projectile to make the tube of a weapon gastight, preventing escape of gas until the projectile has left the muzzle of the weapon.
References in periodicals archive ?
In this condition, retention can be obtained by adhesives, resilient attachments, implants or it can be united to an obturator by magnets.
Role of obturators and other feeding interventions in patients with cleft lip and palate: a review.
The role of obturator in treatment of KCOT with marsupialization is very significant.
The optimal position of the tip of the obturator is at the center of the lesion (Figure 7).
MRI revealed high grade right obturator internus and obturator externus muscle strain involving the attachments to the obturator ring and ischium (Figure 2).
The company said that the stainless steel obturators are compatible with Weck Vista single-use cannula options, adding that these access devices are small tubes inserted into the abdomen and are used as portals for surgical instruments during minimally invasive procedures.
The reusable obturators are easily reprocessed within the hospital to help reduce waste and offer an efficient, longer lasting alternative to disposable devices.
The babies, whose parents agreed, were fitted with the obturators by an experienced orthodontist in the cleft palate + lip O.
Interim obturators have important physical and psychological effects and contribute to improving the quality of life of maxillectomy patients.
The central trocar, or obturator, is used to pierce the abdominal wall and is then removed leaving the cannula as an access port to abdominal cavity.