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A trocar (or trochar) is a medical or veterinary device used in minimally invasive surgery. Trocars are typically made up of an awl (which may be metal or plastic with a pointed or tapered tip), a cannula (essentially a rigid hollow tube) and often a seal. [1] [2] Some trocars also include a valve mechanism to allow for insufflation.
Das's modification to the long curved delivery forceps (shorter in length) with axis traction devices in place, seen from the right side (left blade in front: with respect to the mother's vaginal wall).
Part of a trocar device A device used as a guide during tracheostomy tube insertion Palatal obturator , a dental prosthesis used to seal an opening in the palate, i.e. cleft palate
A tracheostomy tube may be single or dual lumen, and also cuffed or uncuffed. A dual lumen tracheostomy tube consists of an outer cannula or main shaft, an inner cannula, and an obturator. The obturator is used when inserting the tracheostomy tube to guide the placement of the outer cannula and is removed once the outer cannula is in place.
Obturation is the necessary barrel blockage or fit in a firearm or airgun created by a deformed soft projectile. [1] A bullet or pellet made of soft material and often with a concave base will flare under the heat and pressure of firing, filling the bore and engaging the barrel's rifling.
A palatal obturator is a prosthesis that totally occludes an opening such as an oronasal fistula (in the roof of the mouth). They are similar to dental retainers , but without the front wire. Palatal obturators are typically short-term prosthetics used to close defects of the hard/soft palate that may affect speech production or cause nasal ...
The medial surface, of much less extent than the lateral, presents at its base a deep depression, the trochanteric fossa (digital fossa), for the insertion of the tendon of the obturator externus, and above and in front of this an impression for the insertion of the obturator internus and superior and inferior gemellus muscles.
Tenaculum. A tenaculum is a surgical instrument, usually classified as a type of forceps.It consists of a slender sharp-pointed hook attached to a handle and is used mainly in surgery for seizing and holding parts, such as blood vessels.