107 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.

A lavage catheter for the treatment of a maxillary sinus is described. The catheter comprises a proximal portion and a distal portion. The distal portion comprises an irrigation tip. The irrigation tip has a tip opening through which fluid may be delivered by one handed operation of the catheter. A method for lavaging the maxillary sinus includes inserting the lavage catheter into a patient's anatomy and advancing the irrigation tip into the maxillary sinus using one hand.

The present invention is directed to devices and methods for administering at least one effective dose of at least one therapeutic substance to at least one of the maxillary sinuses of a patient in need thereof. Alternate embodiments may comprise administration of the at least one effective dose of at least one therapeutic substance to both maxillary sinuses, where the administered therapeutic substance(s) are either the same or differ from sinus to sinus. Still further alternative embodiments may comprise more than an initial effective dose administered to a patient's maxillary sinus(es), so that the therapeutic substance may be delivered over time, thereby requiring a larger dose be deposited within at least one of the maxillary sinuses so that the maxillary sinus(es) serve as a therapeutic substance depot for long-term release to the target structure(s).

There is provided an implant drill for maxillary sinus lifting, which is capable of easily and simply boring the maxillary bone, without damaging the lining membrane of the maxillary sinus, to easily operate the maxillary sinus lifting and to expand a boring part of the maxillary born for implant placement. The implant drill for maxillary sinus lifting, which includes a central shaft with a shank in a body to be mounted onto a general dental hand piece, comprises a protrusion member elastically positioned in the body so as to move forward and backward or a lifting member being free from the rotation of the body.

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.

A bur for maxillary sinus augmentation is disclosed. The bur uses a drill for rapid and easy perforation and expansion of maxilla as a preliminary surgery such that easy and convenient placement of dental implants is carried out without injuring subantral membrane. The bur includes a head, a body, a tool mount, and a perforation bur for a crestal approach technique including a head having a round top coated with irregular coarse diamond particles.

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.

A piezotome operation unit for lifting a maxillary sinus at a position of placement of an implant upon lifting the maxillary sinus, which forms and enlarges the vertical hole with ease in a remaining bone of the maxillary sinus though vertical approaching, and upon forming a lateral window below a malar bone through lateral approaching, prevents a maxillary membrane from becoming damaged, thereby ensuring continuous, safe lifting so that the operating time is shortened and the efficiency of the operation is maximized.

A dental implant includes a dental implant body which is a cylinder body having a first end and a second end, an asymmetric thread being provided around the dental implant body, an apex lock being formed at the first end for inserting into a sinus of a desired position, 3 plurality of apex indentations increasing cutting efficiency, an apexsinoelevation being formed at the lowermost end for elevating a maxillary sinus floor, and a hexamaxim lock being provided at the second end for integrally connected with an abutment through a bolt. The apex lock is a space indented in the first end for enabling new grown bone extending into the apex lock to provide a locking mechanism to ensure integration between the dental implant and the bone. The hexamaxim lock has a lock cavity having a lock opening at the second end for receiving a root of the abutment therein. A ferroembrace is a bevel helps dentist to control esthetics and retention. A cervical slop and cervical steps will help dentist to control the depth of a dental implant to be inserted.

There is provided an implant drill for maxillary sinus lifting, which is capable of easily and simply boring the maxillary bone, without damaging the lining membrane of the maxillary sinus, to easily operate the maxillary sinus lifting and to expand a boring part of the maxillary bone for implant placement. The implant drill for maxillary sinus lifting, which includes a central shaft with a shank in a body to be mounted onto a general dental hand piece, comprises a protrusion member elastically positioned in the body so as to move forward and backward or a lifting member being free from the rotation of the body.

The invention concerns a piezo insert and a piezo packer for implant surgical operation with a piezoelectric device. The piezo insert according to the invention consists of a piezo insert body one end of which is inserted in and fixed to a hand piece of the piezoelectric main device; an insert pole extending from the other end of the piezo insert body; and an insert tip formed at the end of the insert pole. The piezo packer consists of a piezo packer body one end of which is inserted in and fixed to a hand piece of a piezoelectric main device; a packer pole extending from the other end of the piezo packer body and a packer tip formed at the end of the packer pole. With the piezo insert and the piezo packer according to the invention, forming and expanding a hole in a vertical direction in a residual ridge at a portion for implant placement is facilitated when applying bone grafting in a maxillary sinus, and damages can be avoided in a maxillary sinus membrane, in order to effectively insert graft materials through the formed hole in the residual ridge for bone grafting.

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 diapir apparatus of maxillary sinus floor in oral implant clinical treatment, which is used for lifting maxillary sinus floor when bone mass in maxilla molar region is insufficient and can effectively increase the vertical bone mass of an alveolar bone. The diapir apparatus of maxillary sinus floor comprises a basal disc and diapir components which can move along a base plane direction perpendicular to the basal disc; a clamp device and a retaining structure used for preventing the diapir components from backtracking are positioned on the basal disc. A plurality of diapirs are carried out for the alveolar bone of the maxillary sinus floor by adopting the diaper components so as to generate the vertical bone mass of the alveolar bone with enough thickness; during the diapir, each diapir distance of the diaper components is accurately controlled so as to effectively prevent mucous membrane of the maxillary sinus floor from being torn due to one-time excessive lifting; furthermore, after each diapir, authigenic bone grows in the clearance between the basal disc and the maxillary sinus floor. The diapir apparatus of maxillary sinus floor of the invention is especially applicable to the sufferers who are old and weak and can not bear wound due to a larger operation and to the cases that teeth are implanted in maxillary posterior-teeth loss area when the bone height of maxillary sinus floor is less than 5mm.

A liquid injection apparatus for lifting a maxillary sinus mucous membrane includes a passageway longitudinally extending through inside the apparatus; a connecting pipe formed at a rear portion to connect with a liquid supply apparatus; and an injection pipe 16 formed in a front portion, for being inserted into an implant hole extending to a bottom of a mucous membrane of a maxillary sinus, with a distal end of the injection pipe 16 spaced apart from the mucous membrane by a predetermined distance. The injection pipe is structured to inject liquid into the implant hole while closing the implant hole. The liquid injection apparatus can more easily lift the maxillary sinus mucous membrane without damaging the same by applying uniform pressure to the maxillary sinus mucous membrane when the maxillary sinus mucous membrane is being lifted.

An apparatus for lifting a maxillary sinus includes: a pillar, having a cutting blade and an engaging base; a transmission shaft, having a transmission base having a shape corresponding to that of the engaging base; an elastic element provided an elastic force between the engaging base and the transmission base; and a seal element, wrapping the engaging base, the elastic element and the transmission base. When the cutting blade encounters a drag force, the transmission base moves toward the engaging base until the transmission base and the engaging base are engaged with each other. When the drag force is decreased, the engaged transmission base and engaging base are separated from each other due to the elastic force of the elastic element.

In order to solve such defects in the prior that whether maxillary sinus is successfully lift is hard to judge and the operation is inconvenient, the invention provides a minimally invasive internal maxillary sinus lifting device for implanting teeth. The minimally invasive internal maxillary sinus lifting device comprises a bone fixing element, an internal lifting element and a force applying element, wherein the bone fixing element comprises a cylindrical body, a fixing part is arranged on the outer surface of the cylindrical body, and the cylindrical body is provided with a first through inner hole and a second through inner hole along the axial direction; the internal lifting element comprises a lifting rod and a lifting head, one end of the lifting rod is fixedly connected with the lifting head, the lifting rod is inserted in the first inner hole of the cylindrical main body, the other end of the lifting rod is fixedly connected with the force applying element through threads, and the force applying element is located in the second inner hole of the cylindrical main body. Since the travel of the internal lifting device provided by the invention is controllable, the lifting element is ensured not to break through a mucous membrane of maxillary sinus; in addition, since the integration degree is high, the lifting device provided by the invention is smart in structure and can be conveniently used for carrying out internal lifting operation in oral cavities.

The invention discloses a maxillary sinus floor lifting device comprising a screw rod and a base; the base is of a hollow columnar structure, the outer surface of the base is provided with a self-taping thread and a first stress mechanism; the self-tapping thread and the first stress mechanism are partitioned by a check ring; the inner surface of the base is provided with an inner surface thread, the thread direction of which is accordant with that of the self-tapping thread; the screw rod is of a columnar structure; the surface of the screw rod is provided with a screw-rod thread and a second stress mechanism, wherein the screw-rod thread is matched with the inner surface thread,; and the bottom of the screw rod is provided with a stress application plate. According to the invention, the base and the screw rod are combined, arranged and fixed in a planting hole; and the screw rod runs through the base and applies a lifting force to the maxillary sinus so that the maxillary sinus is lifted to a predetermined altitude. The maxillary sinus floor lifting device can be used for lifting the maxillary sinus slowly under accurate control and also avoiding discomfort caused by beating; more preferably, assistant tools or means are not required for fixing the base; in addition, the base has a small function in lifting the altitude of the maxillary sinus.

A dental implant system is hermetically sealed and uses a radially extruded extension retentive design. The implant system provides additional retention and resistance to rotational and lateral forces and disperses these forces vertically and apically through the implant body. The implant system also provides protection from issues of sepsis at the junction between the abutment and the implant body, when can result in significant bone loss in conventional designs. The implant system integrates/unifies the components to result in a closer approximation to a natural tooth root to improve resistance to lateral and rotational forces that challenge the integrity of conventional implants. The implant system provides a shorter average length in proportion to its retentive surface area, thereby effectively reducing the needed length to avoid invading nearby anatomic structures, such as the maxillary sinus, mental foramen and/or mandibular canal.

The invention provides a sacculus medicine-spraying device for treating nasosinusitis or allergic rhinitis. The sacculus medicine-spraying device comprises an inflatable sacculus, a sacculus inner pipe and a sacculus catheter, wherein the sacculus inner pipe penetrates through the sacculus and extends axially; and the far-end opening of the sacculus catheter is ended in the sacculus. The sacculus medicine-spraying device provided by the invention has the advantages that the prepared effective treating medicine liquid or gelatinous or powdery solid particles can be conveyed to the diseased part of the paranasal sinus, and the cavity part of the frontal sinus and/or the maxillary sinus is used as a medicine storage device, so that the diseased part can be treated by medicines in enough-long treatment period. The sacculus medicine-spraying device also has the advantages that effective medicines are uniformly sprayed to the diseased part by minimally invasive surgery; the medicines stored on the frontal sinus and the maxillary sinus can be conveyed to the diseased part continuously in time along with the swinging of the cilium of the nasal cavity and the flowing of mucus of the nasal cavity; and before the stored medicines are metabolized, the medicines can be directly and continuously fed to the diseased part, and the treating effect of common medicine feeding is greatly improved.

Described herein is a method detecting a plurality of upper respiratory tract sub-regions automatically. Volume of interest (VOI) is identified based on the extraction of certain features, such as regional properties and shape-based features. The complete airway volume from a patient's data is identified by observing the area and eccentricity profiles of the certain volume/organ in the skull. Maxillary sinus area and eccentricity profile in the sagittal view is chosen in the present subject matter for level 1 VOI identification. Once a level 1VOI is identified, the other sub-regions existing in the same VOI are further identified as individual level 2 VOL Level 3 VOI is extracted based on the shape and geometric features of the organ. The extracted level 3 VOI is considered as the active contour that is followed by the initialized contour for the accurate segmentation of upper airway sub-regions.

The invention discloses a maxillary sinus external lifting operation auxiliary guide plate and a preparation method thereof. The preparation method comprises the following steps of: obtaining scanningdata of a posterior tooth grafting area, a corresponding maxillary sinus area and an adjacent area, and reconstructing the scanning data into three-dimensional data; the maxillary sinus elevation region was extracted from the reconstructed three-dimensional data and extended to the palatal side of the implantation region and the adjacent region. The extended external maxillary sinus lifting operation area was thickened, and an opening was reserved at the corresponding position of the fenestration hole, and then the boundary of the thickened external maxillary sinus lifting operation area wasfused and preserved. The maxillary sinus external lifting operation auxiliary guide plate is obtained by printing that saved data through a printing device; The method can prepare individualized auxiliary guide plate for different patients, ensure the matching between the auxiliary guide plate and different patients, and improve the accuracy of maxillary sinus external lifting operation; In addition, the method is easy to operate and low in cost, which is easy to be popularized.

The invention belongs to the technical field of instruments for inputting a medium into a human body or on a human body, and discloses a wearable allergic rhinitis treatment instrument and a control method thereof. The wearable allergic rhinitis treatment instrument is provided with fixing apparatus which is used to fix the treatment instrument on the patient's head and prevent the movement of thetreatment instrument when the patient moves; treatment apparatus which is used to treat and heat the patient's nasal cavity; main control apparatus which is used to control the operation of the entire treatment instrument; transmission apparatus which is used to receive commands of user equipment and send treatment data to the user equipment; and energy supply apparatus which is used to provide electrical energy for the operation of the entire treatment instrument. Light guide columns provided by the invention can effectively converge a laser beam emitted by infrared lamps, the laser beam reaches paranasal sinus facial projection areas such as maxillary sinus and frontal sinus, and better treatment effects are achieved. The patient's nasal cavity can be heated through heating rods to increase treatment effects. The treatment instrument has a small size, and can be fixed on the patient's head by fixing belts, and normal activities are not affected during treatment.