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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The mean onset of sensory block in the distribution of 3 in 1 block was as follows: Femoral nerve--29.70 [+ or -] 7.21 minutes; Obturator nerve- 31.95 [+ or -] 12.81 minutes (Figure 6).
Prosthetic rehabilitation of an edentulous cleft palate using a denture with a palatal obturator: A clinical report.
In this case, we were able to utilize this balloon occlusion technique to embolize an unselectable obturator artery in the setting of pelvic trauma.
(7) The inguinal approach has a lower complications rate; nonetheless, lack of access to the obturator nerve fibers originating from the hip joint fossa can induce some problems.
Following insertion of the prosthesis (Figure 8), the obturator prosthesis demonstrated optimal retention and stability.
This case report is the first documented description of a periprosthetic foraminal obturator hip dislocation.
Simultaneously, regional external iliac, obturator, and internal iliac LNs were removed as previously reported [5,6].
She was referred to a general surgeon and underwent an MRI of the abdomen and pelvis that revealed a "partially enhancing well-circumscribed multilobulated heterogeneous right inferior pelvic neoplasm, contacting the posteroinferior aspect of the right obturator internus and extending into the right ischioanal fossa." Due to the inability to definitively characterize the lesion the decision was made to proceed with upper endoscopy, colonoscopy, and a CT guided fine needle aspiration.