36 results about "Sinus lift" patented technology

A surgical tool (5) used for preparing a surgical sinus-lift osteotomy has a defined thread geometry in series with an osteotome tip to cut, crack and push bone from the sinus floor upward into the sinus cavity in a tactual, gentle and controlled motion. The apical osteotome tip is driven into a pre-drilled pilot osteotomy after the cutting threads are engaged and rotated until the sinus floor is cracked free. Once the bony sinus floor is cracked free, a fluid passageway can be pressurized with a sterile fluid at a defined pressure to release and push the sinus membrane upward into the sinus cavity to create a desired apical cavity for grafting. The invention solves the problems for preparing a sinus-lift surgical osteotomy and desired cavity space while minimizing the risk of compromising or tearing the sinus membrane. The invention allows the physician to easily form the desired sinus cavity to allow for grafting and to receive a screw formed dental implant while minimizing the risk of certain undesired surgical conditions.

A surgical instrument for use in a sinus lift includes a substantially cylindrical sleeve which is sealingly insertable into a bore of a jawbone. The sleeve has a lumen and is formed with an inlet channel and an outlet port which is in fluid communication with the lumen. A vibration unit is operatively connected to the instrument for transmitting vibrations into the lumen.

Devices and methods for gradual displacing of the soft tissues covering bones. The gap developing between the bone and the displaced soft tissue will be filled with bone callus as it is in distraction osteogenesis. The devices and methods allow formation of bone in distraction osteogenesis without cutting a segment of the bone. The devices and methods are particularly useful in dental implantology for vertical ridge augmentation by displacing the periosteal tissue and for sinus lift by displacing the Schneiderian membrane. The devices and methods can also regenerate soft tissue between the bone and the displaced soft tissue.

A bone graft that is made at least partially of synthetic material or demineralized bone matrix and is of a suitable shape to fill a lower portion of a patient's maxillary sinus. The graft may be manufactured to patient-unique dimensions that may be determined radiographically prior to surgery and prior to manufacturing of the bone graft. Other aspects of the invention are a method of manufacture of the bone graft, and methods of installing the bone graft. The installation may make use of patient-unique templates to guide certain cutting operations. Another aspect of the invention is a kit comprising the bone graft, tools for its installation, templates and possibly other surgical items.

A dental implant is provided that has a proximal-most part, a lateral external surface, and a distal implant portion that extends from a distal implant end along up to 50% of a longitudinal length of the implant. The implant is shaped so as to define a lumen therethrough (a) having at least one distal opening through a distal external surface of the distal implant portion, (b) having a lateral opening through the lateral external surface, and (c) not open to a proximal external surface of the implant within 2 mm of the proximal-most part of the implant. Other embodiments are also described.

A method of conducting a sinus lift procedure is provided. A secure and physical interaction is formed between a fiducial device and a site within a patient's mouth to form a fiducial marker. A virtual incising plan is formed for incising the patient's maxilla, with respect to the fiducial marker, for providing access to a sinus membrane. Movement of an incising device is physically regulated with respect to the fiducial marker with a guidance device. The incising device is in physical communication with the fiducial marker via the fiducial device. The guidance device physically regulates movement of the incising device, according to the virtual incising plan and corresponding with physical manipulation of the incising device by a user, to incise the maxilla. Tactile feedback is provided to the user, via the incising device, if the physical manipulation of the incising device by the user deviates from the virtual incising plan.

A method and apparatus are herein provided, the method including: receiving a three dimensional virtual model of a maxillary alveolar bone of a patient, and a digital dental implant plan that defines a planned dental implant site of the maxillary bone; receiving a set of values consisting of predefined distances; creating a virtual model of a surgical guide stent for placement against an occlusal surface, wherein the virtual model of the surgical guide stent defines: a hole through the surgical guide stent at a site corresponding to the planned dental implant site defined in the digital dental implant plan, and an inferior surface surrounding the hole; and outputting the virtual model of the surgical guide stent in association with the one of the predefined distances.

Apparatus is provided that includes a dental implant having a proximal implant end and a lateral external surface. The implant is shaped so as to define a lumen therethrough having a lateral opening through the lateral external surface. The apparatus further includes an applicator, which is removably coupled to the proximal implant end. The applicator includes a delivery tube having a distal tube end that is removably coupled to the implant such that the delivery tube is in fluid communication with the lumen via the lateral opening. Other embodiments are also described.

A device, for atraumatically elevating the Schneiderian membrane during a sinus lift procedure with positive, real-time indication of the amount of lift occurring, may include: a first conduit; a first balloon coupled to a first end of the first conduit and in fluid communication therewith; a second conduit; a second balloon coupled to a first end of the second conduit and in fluid communication therewith; and means for infusing a fluid into the first and second conduits to cause inflation of the balloons. The balloons may be constructed the same, or may be individually tailored. The first balloon is configured to be received within the implant socket and apply pressure to the membrane. The second balloon, expanding against atmospheric pressure only, is configured of a different material and wall thickness. An integral scale behind the second balloon provides indication of the inflation and lift provided by the first balloon.

An osteotome for sinus lift procedures includes a body interchangeable with various handles. The body includes a shaft that is releasably received into the handle, and a tip portion. The tip portion may be directly utilized for ridge expansion/bone compression, or a succession of tip members may instead be received thereon to provide suitable diameter escalation to create the socket. A conduit in the tip portion interconnects with a conduit in a hydration port and a conduit in a tip member. A hose couples the hydration port to a syringe, to deliver fluid out the tip member to lift the membrane. Graduated syringe markings permit delivery of measured fluid quantities to control the amount of lift. A second hydration port is coupled to a graduated cylinder through a valve, which is opened after lifting is complete, to measure the fluid released. A loss of fluid measured indicates a sinus tear.

An ultrasonic sinus membrane/periosteum separation tool set consisting of a cutting tool and a spray nozzle for use with a hand piece of an ultrasonic machine is disclosed. The cutting tool has a connection base, a pole and a cutter tip. The spray nozzle has a connection base, a pole and an operating tip. The pole extends from the connection base, having a longitudinal fluid passage for the passing of a fluid and a fluid injection hole for injecting a fluid into a hole made on the alveolar ridge of the gingiva of the patient to be treated. The cutter tip and the operating tip each have jet holes for ejecting a fluid radial in jets, facilitating sinus augmentation (sinus lift or sinus graft). The ultrasonic sinus membrane/periosteum separation tool set can also be used in an upper/lower jaw deformity implant surgery.

A biocompatible, resorbable collagen membrane having a wedge shape with a thick edge of relatively higher strength and rigidity and a thin edge of relatively higher deformability and elasticity, which membrane is bendable to a desired configuration and is sufficiently rigid to retain the bent configuration upon implantation at a surgical site; a method of making such a membrane, and the use of such a membrane in a “sinus lift” procedure for augmenting alveolar bone.

Tool for drilling bone tissue, which has the advantage of having a cutting tip with a flat effective shape that prevents perforation of the Schneider membrane or injury to the dental nerve when drilling close to them. The tool is disposed along an longitudinal axis (7) and comprises a non-cutting main body (1), a narrowed area (2) for retaining bone and a cutting tip (3), which comprises cutting blades (4), each one of which is provided with a front cutting edge (5) substantially perpendicular to the longitudinal axis (7) and a substantially lateral cutting edge (6) that forms an angle of between 0 and 10° with the longitudinal axis (7). Spaces (9) for receiving bone are disposed between the cutting blades (4) and are connected to the narrowed area (2).

The invention discloses a maxillary sinus lifting side wall fenestration indication guide plate and a manufacturing method thereof. The technical problems that in the prior art, the maxillary sinus lifting side wall fenestration position and size are not accurate enough, consequently, maxillary sinus lifting side wall fenestration is high in risk and low in efficiency are solved. The maxillary sinus lifting side wall fenestration indication guide plate comprises a base plate and a guide structure detachably connected to the base plate, a connecting bolt body is arranged on the base plate, andthe guide structure is detachably connected to the connecting bolt body. The manufacturing method mainly comprises the steps that stl data are obtained through oral scanning before an operation, CBCTis shot to obtain Dicom data, the maxillary sinus lifting side wall fenestration boundary is calibrated in guide plate design software, a side wall fenestration guide plate and a dental support base plate are designed in guide plate generation software according to the fenestration boundary, and printing forming is conducted through a 3D printer. The maxillary sinus lifting side wall fenestrationposition and size can be accurately determined, the bone mass of the side wall is stored for postoperative reduction, maxillary sinus mucous membrane perforation, injury to adjacent blood vessels andother complications are avoided, the operation risk is reduced, and the operation efficiency is improved.

The embodiment of the invention provides a maxillary sinus lifting tool, and relates to the technical field of oral medical instruments. Actual pressure borne by a working section is collected through a pressure detection element, so that a controller can judge whether the actual pressure meets a preset condition or not after the actual pressure is obtained; if the preset condition is met, the last layer of bone tissue of the sinus floor bone is chiseled through the working section, so that the controller sends out a starting signal at the moment to enable an alarm device to send out an alarm prompt; and a doctor can clearly know that the sinus floor bone is chiseled through according to the alarm prompt sent by the alarm device, the doctor can immediately stop the chiseling operation, and the fragile sinus floor mucous membrane is prevented from being damaged.

A bone reamer used in the internal sinus lifting procedure of dental implantation is disclosed. A working end of the bone reamer includes a reamer body having a cutting edge, and a front end protrusion at the front end of the reamer body with a smooth, round and blunt surface. The diameter of the front end protrusion is smaller than that of the reamer body. During the internal sinus lifting procedure, a pilot drill is used to penetrate the bone lamella at the maxillary sinus floor, continued with the bone reamer of the present invention to enlarge a hole of implantation. As the front end surface of the bone reamer is smooth, round and blunt, the mucous membrane is blocked without being scratched and damaged. The front end protrusion also guides the bone reamer not to shift from a pathway grinded by the pilot drill, for the guiding purpose.