108 results about "Maxillary sinus" patented technology

A method and apparatus is disclosed for providing implants in the upper jaws of a person. A sleeve is inserted through the alveolar ridge to the maxillary sinus. The sleeve is used to raise the subantral membrane and form a cavity. A filler, such as a bone growth stimulant is injected through the sleeve into the cavity. In the process, the sleeve also can cut and / or condense the bone around itself so that the bone can hold an implant. Optionally, the bone growth stimulant is also introduced into the bone surrounding the sleeve. During the injection, the pressure within the sleeve or the cavity is monitored to detect and prevent the rupture of the subantral membrane.

An assistant device for dental implant surgery to perform an operation for placing a dental implant into a thinned maxilla without damage in a maxillary sinus membrane. The assist device includes a cylindrical main support section (22) having a regulator section (23) integrally formed on a lower end portion thereof; and an expandable bag (25) provided in an internal space (24) of the support section (22). When the expandable bag (25) is inflated, a maxillary sinus membrane (13) is elevated into a maxilla (10).

The invention discloses a bone chisel for interior lifting of the maxillary sinus. The bone chisel comprises a working end and a handle, the working end is provided with a groove and used for stripping the sinus floor mucous membrane towards the periphery so that the maxillary sinus lifting range can be widened, the end face of the tail end of the working end is a plane, and the thickness of the tail end of the working end ranges from 0.3 mm to 1.5 mm. A cylindrical working end of a bone chisel in the prior art is changed into the half-cylindrical or incomplete-cylindrical working end by forming the groove in the working end; when the improved bone chisel is used for lifting of the maxillary sinus, the bone chisel can go deep into the maxillary sinus and then strip the sinus floor mucous membrane towards the periphery under the premise that an implant tooth cavity with the same diameter is prepared, the maxillary sinus bottom lifting range is widened, and therefore the lifting amplitude of the maxillary sinus is improved.

Disclosed therein is a reamer for operating implant, which can very usefully apply an implant operation to a patient who is short of bone quantity to the maxillary sinus, which is easier and safer than a conventional hammering method using a drill and an osteotome or a conventional operation method for transplanting a bone or planting an implant after forming a bone window on a maxillary sinus side wall, and which can reduce a treatment time period and treatment costs by minimizing the patient's pain occurring before and after the operation of the implant. A cutting part of the reamer includes: a protruding face formed on the top surface thereof in such a manner as to upwardly upheave a partial surface including an outer circumference of the cutting part of the entire top surface of the cutting part to form a stepped jaw; a depressed face formed on the top surface thereof in such a manner as to depress a partial surface of the entire top surface of the cutting part to be opposite to the protruding face according to the formation of the protruding face, the depressed face having a reverse inclination in a clockwise direction; a cut edge horizontally formed on a connected portion between the stepped jaw and the protruding face so that the cut edge evenly disperses a force while being in horizontal line contact with the mucosa even though the cut edge is in contact with the mucosa of the maxillary sinus so as to allow a dentist to perform a cutting work safely without damaging a mucosa of a maxillary sinus; and a discharge path longitudinally formed on the cutting part in such a manner as to cut an area ranging from a partial surface of the top surface of the cutting part, i.e., a predetermined portion between the protruding face and the depressed face to a portion which is slightly shorter than the lower end of the cutting part.

The present invention relates to a drill for an implant surgery which allows a mucous membrane in the maxillary sinus to be fast and safely lifted without being damaged during a surgery for the maxillary sinus. According to the present invention, an drill for use in an implant surgery includes a connection portion formed at an upper end of a body of the drill to be connected with a driving device; and a cutting portion formed at a lower end of the body and having a cutting blade for drilling, wherein an outer circumferential edge of a distal end of the cutting portion protrudes rather than a center of the distal end of the cutting portion.

A method of maxillary sinus bone grafting for placement of an implant in which upon placement of the implant, a vertical hole is formed and enlarged with ease in a maxillary sinus floor, a maxillary membrane is easily lifted in an always-stable state using a piezotome and gel type bone graft material while preventing the membrane from becoming damaged, and even the bone graft material of coarse bone meal is uniformly diffused and infused, thereby ensuring that the implant is placed in a fast, safe manner while allowing a patient to keep relaxed and alleviating the pain the patient feels, resulting in shortening a curing time and maximizing effects of the placement of the implant.