123 results about "Curette" patented technology

Surgical instruments are disclosed that utilize high-pressure liquid jets to perform a variety of useful functions. In certain embodiments, surgical instruments are described incorporating one or more liquid jets utilized to contact tissue excised by a non-liquid jet tissue-cutting component of the surgical instrument. In certain embodiments, a liquid jet of a surgical instrument can be utilized for the purpose of excising tissue of a patient immobilized and / or manipulated by the surgical instrument. Also described are surgical devices of the type characterized by curettes, rongeurs, bone punches, bone cutting forceps, morcellators, surgical micrograspers, with functionality and performance supplemented by the integration of a liquid jet. Also disclosed are methods of using certain liquid jet-containing surgical instruments for performing surgical procedures, for example surgical procedures on the spinal column of a patient.

A rotatable surgical burr (100, 200, 300, 500) having a protective hood (120, 220, 320, 520, 620, 720) with a dissecting foot plate (119, 219, 319, 519, 619, 719) is provided to improve and enable various spinal decompression procedures. The surgical burr's protective hood has a dissecting foot plate that may be shaped to resemble a curette, a Woodson, or other appropriate dissecting tools to allow insertion of the tool between the spinal nerve and the compressing bone. The protective hood surrounds the burr bit (130, 230, 530) exposing only a portion of the burr bit for burring of the offending bone and protects the nerve from the burr tip. The instrument may also be configured with a soft tissue resecting tip (330) for soft tissue resection.

A polyaxial instrument suitable for preparing the intervertebral disc space of a patient through an anterior, posterior, transforaminal or anterolateral approach. The trial can be partially inserted into a disc space and then its angle adjusted to ease its further insertion into the disc space. The trial work tip can be interchangeable with the working tip of another type of instrument such as a curette, a rasp, a spreader, a shaver, a cobb elevator, a penfield, a woodson, a chisel and an osteotome.

An improved oral-hygiene apparatus, for example a toothbrush, includes a handle configured to resist rolling and angled to maintain the head off a surface when idle. In addition, the apparatus includes recessed tongue-cleaner on the head, opposite the bristles. The tongue-cleaner features a rounded tongue-curette scrape edge and smooth curette base. This design allows omni-directional travel and effectively scrapes and cleans the tongue and inner cheek. The present invention is economical to produce and does not increase the overall thickness of the instrument head.

This invention relates to a periodontal instrument and curettage method for separating and removing calculus and diseased granulation tissue from the tooth surface and periodontal cavity in deep pockets greater than 10 mm. The invention is comprised of a straight shaft, a distal portion in parallel orientation with and terminating in a spoon-shaped blade with a rounded tip and continuous sharp edge. The approximate 90 degree angle orientation between the distal and proximal shank portions, rounded blade tip, and parallel alignment of the blade face relative to the distal shank portion enhance maneuverability, accessibility, and efficiency and minimize tissue trauma during periodontal curettage.

The invention is a curette that includes a tip and shaft that detachably join together to form a working tool member. The shaft has a threaded receiving end that is sized to receive a mating end of the tip. The mating, or proximal, end of the tip includes a corresponding threaded section and a smaller-diameter outwardly extending elongated section that is flattened on one or more sides. To attach the tip to the shaft, a user partially fills the receiving end of the shaft with epoxy. The user then inserts the mating end of the tip into the receiving end of the shaft, such that the epoxy surrounds the elongated section of the mating end and fills or partially fills the threads. The user then screws the tip and shaft together, to interlock, or self-lock, the threads. When the epoxy thereafter hardens, the tip is firmly held against rotation relative to the shaft both by the epoxied and interlocked threads and the flattened-sided section that, because of its shape, resists rotation within the hardened epoxy. When the tip needs replacing, the tip is detached from the shaft by applying moderate heat to soften the epoxy and, thereafter, unscrewing the locking threads.

A radiolucent bone drill and / or impact drill is provided, which includes a first portion connected to a second portion. The first portion defines a first axis and the second portion defines a second axis. The second axis is disposed at an angle relative to the first axis. A third portion is connected to the second portion. The third portion has a shaft extending therefrom. The shaft includes a distal end configured to engage bone. The bone drill may include a radiation protection guard mounted to the first portion. Specific drill bits, access sheaths / conduits / tube, curettes, and screwdriver bits designed to be used with the devices are provided. The bone drill may be used to place an access sheath / conduit / tube / needle into a bone in a single step. Methods of use are also disclosed.

Surgical curettes or rakes with cutting edges conform or deflect to allow for contouring that follows the bony anatomy. The cutting tips can be pre-sterile, disposable and made from flexible materials including metals and polymers. The disposable tips ensure that a sharp cutting edge is exposed to the endplate for each procedure. The tips can also be adjusted to change the size of the cutting surface and window for retaining shaved disc material. The tips can pivot to provide for a self adjusting angle that allows the cutting edge to have full contact with the endplate at various angles like the pivot on a disposable razor blade.

A cavity drill is provided, which is configured for use with a bone drill. The cavity drill includes a body. The bone drill has a first portion movably connected to a second portion. A third portion is movably connected to the second portion. The body is mounted with the third portion of the bone drill. A sheath extends from the third portion to a distal end. A curette is connected with the distal end of the bone drill. The curette is composed of retractable cutting tines / blades which are turned / powered by the bone drill motor. The curette tines can be used in a partially or fully deployed state and at low or high speed. The curette is designed to create cavities of varying size in a bone. The cavity drill and the bone drill may include a radiation protection guard and radiolucent portions. Methods of use are also provided.

A multi-blade curette tool for use in spinal surgery. The curette tool includes an elongated member having a first end and a second end. A handle is disposed at the first end. A curette head is disposed at the second end. The curette head is generally tapered toward the first end and the second end. The curette head includes a convexly-shaped and generally tapered nose portion, a base portion, and a plurality of blades. Each blade extends between the base portion and the nose portion, and each of the plurality of blades is provided with at least one cutting element. A drive stem connects the handle and the curette head. At least one cutting element of each blade is adapted to remove spinal disk material upon rotation of the curette tool in at least one direction.

An axial load limiting system can include a handle having a lever pivotably connected to the handle, a hollow shaft slidably attached to the handle, and a rod operably connected on the proximal end to the lever and movable axially inside the shaft. A surgical implement, for example, a curette, can be connected to the distal end of the rod and pivotably connected to the distal end of the shaft. The system can include a biasing mechanism adapted to be compressed within a cavity in the handle by an axial load in excess of a predetermined axial load. When pivoting of the surgical implement is restricted due to an obstruction, such as hard tissue, and the excessive axial load is placed on the rod, the rod and the surgical implement can move the shaft in the distal direction so as to compress the biasing mechanism, thereby relieving the rod and surgical implement of the excessive axial load.

A surgical instrument for use in a therapeutic treatment of a patient has a stem connected to a handle, and a slide connected to a trigger. An end effector forms a distal portion for manipulating body tissue, for example a curette, and a proximal portion that is pivotally connected to either the stem or slide. A lever extends from near the pivot and is engaged by the other of the stem or slide. When the slide and stem are slid relative to each other, the lever is engaged to pivot the end effector within the body, for example to cut tissue. A post on the lever engages a channel in the stem or slide, to guide movement of the end effector. A link may be pivotally connected between the lever and a stem or slide, to increase a range of motion of the end effector.

A surgical tool including a pair of levers that are pivotally connected together so as to define a pair of opposed rearward portions that serve as handles and a pair of opposed forward portions. A pair of ring curettes is affixed to the forward portions such that, when the rearward portions are squeezed together, the ring curettes are driven apart to cut material from opposite sides of a cavity into which they are inserted.

A curette or like instrument for use by a dental practitioner in removing plaque and calculus from tooth surfaces within periodontal pockets comprises a tip having a debridement portion. The debridement portion is provided with a marking in the form of mutually contrasting bands to give the practitioner a visual indication of the extent to which the instrument has in use penetrated a periodontal pocket, so that its end (which is sharp) does not cause pain or injury to the patient. The bands are formed, eg by etching or by differently coloured materials, to accord with markings already used on periodontal probes. The invention is applicable to ultrasonic, sonic and piezo-electric scaling instruments as well as to manual instruments.

An adjustable, disposable dermal curette is structured to allow a user-practitioner to ergonomically grip a handle and manipulate an adjustable slider with a digit of their hand in order to change the diameter size of the flexible blade formed in an adjustable loop to the useful range of diameter sizes required. The user-practitioner can lock and unlock the slider in place quickly without the need to interrupt their procedure. The adjustable curette solves the problem of requiring multiple curette loop sizes for a procedure and results in improved quality of care and a savings of time and healthcare dollars.

A cavity drill is provided, which is configured for use with a bone drill. The cavity drill includes a body. The bone drill has a first portion movably connected to a second portion. A third portion is movably connected to the second portion. The body is mounted with the third portion of the bone drill. A sheath extends from the third portion to a distal end. A curette is connected with the distal end of the bone drill. The curette is composed of retractable cutting tines / blades which are turned / powered by the bone drill motor. The curette tines can be used in a partially or fully deployed state and at low or high speed. The curette is designed to create cavities of varying size in a bone. The cavity drill and the bone drill may include a radiation protection guard and radiolucent portions. Methods of use are also provided.

A step-shaped endometrial curette is provided. The step-shaped endometrial curette includes a handle, a curetting bar, and a collection cup. The handle is connected to a first end portion of the curetting bar. A second end portion of the curetting bar has a distal end formed with a plurality of mushroom-shaped curetting plates for removing endometrial tissues by scraping. The collection cup is slidably connected between the first end portion and the mushroom-shaped curetting plates and serves to hold the removed endometrial tissues. As the mushroom-shaped curetting plates are arranged stepwise, and the curetting bar is freely flexible to adapt to the internal shape and angles of the uterus, specimens can be taken from inside the uterus without dilatation of the cervix or anesthesia. Besides, the collection cup can collect all the removed endometrial tissues to enable sufficient and thorough pathological examination.

A polyaxial instrument suitable for preparing the intervertebral disc space of a patient through an anterior, posterior, transforaminal or anterolateral approach. The trial can be partially inserted into a disc space and then its angle adjusted to ease its further insertion into the disc space. The trial work tip can be interchangeable with the working tip of another type of instrument such as a curette, a rasp, a spreader, a shaver, a cobb elevator, a penfield, a woodson, a chisel and an osteotome.

A medical instrument serves for cutting off tissue and cartilage from a body. It comprises an outer shaft having at least a first window in a distal end area thereof. A hollow inner shaft is received within the outer shaft and can be rotated about a longitudinal axis of the outer shaft. The hollow inner shaft has at least one opening cooperating with the at least one window of the outer shaft in a cutting action when turning the inner hollow shaft. A further window is provided in the distal end area of the outer shaft which further window is surrounded by a curette having a separating edge. Tissue and cartilage separated by the curette can be cut into small pieces by the cutting edges of the rotatable inner shaft and then be sucked in through an opening of the inner hollow shaft.

Surgical curettes or rakes with cutting edges conform or deflect to allow for contouring that follows the bony anatomy. The cutting tips can be pre-sterile, disposable and made from flexible materials including metals and polymers. The disposable tips ensure that a sharp cutting edge is exposed to the endplate for each procedure. The tips can also be adjusted to change the size of the cutting surface and window for retaining shaved disc material. The tips can pivot to provide for a self adjusting angle that allows the cutting edge to have full contact with the endplate at various angles like the pivot on a disposable razor blade.

The invention discloses an orthopedics curette for use in minimally invasive surgery. The orthopedics curette comprises a curette and protective tube provided with a clamping block which are connected into a whole, wherein the protective tube is connected in a channel of a curette rod, a curette handle and the clamping block; a video transmission device is arranged in the protective tube, and is an image pickup assembly consisting of a light guide fiber bundle, an electronic circuit board which is connected with an image sensor, a video signal line and a camera; the image pickup assembly is connected with the video signal line, the light guide fiber bundle and a light source; and the camera is arranged close to the curette rod. The functions of the curette and a sight are combined, observation, surgery and treatment are integrated, a reliable surgical appliance is provided for the application of orthopedics minimally invasive surgery, and only a small incision is required to be formed on a focus; and the curette is inserted into a wound, and surgical operation is performed directly under a display screen of a display, so that the real status of pathological changes of tissues inside bone vertebra and the entrance depth of a curette head can be observed more clearly, the accuracy of examination and surgical operation is increased, damages caused by blind reduction of normal tissues are reduced, and pain, burdens and medical risks of patients are reduced.

The invention relates to an adjustable fistula channel curettage device applied to normal anorectal diseases like anal fistula; the adjustable fistula channel curettage device employs circumferential telescopic scrape teeth; a handle is rotated so as to finish a whole fistula channel curettage process; the whole curettage device comprise a head, a body, the handle, and a turn button; the head of the curettage device employs umbrella folding expansion design, and can be adjusted according to the fistula channel sizes; the curettage device body comprises an outer sleeve, a middle layer hidden curet and an inner shaft; the handle is made of medical high-molecular plastic, and the outer layer of which is made of natural rubber, thus complying with human body mechanics design, and the handle is easy to hold; the turn button is made of stainless steel material, and can be tightly combined with the inner shaft of the body, thus realizing accurate adjustments.

An ear curette has a shaft and a cleaning portion. The shaft has a distal end. The cleaning portion has a disk and a bar. The bar has a distal end and a proximal end. The proximal end of the bar is narrower than, is formed on and protrudes from distal end of the shaft. The disk is formed on the distal end of the bar. When in use, the disk of the cleaning portion can be deposited in the ear canal first and then pulled out of the ear canal to scrape out earwax and is easily cleanable.

A rotatable surgical burr (100, 200, 300, 500) having a protective hood (120, 220, 320, 520, 620, 720) with a dissecting foot plate (119, 219, 319, 519, 619, 719) is provided to improve and enable various spinal decompression procedures. The surgical burr's protective hood has a dissecting foot plate that may be shaped to resemble a curette, a Woodson, or other appropriate dissecting tools to allow insertion of the tool between the spinal nerve and the compressing bone. The protective hood surrounds the burr bit (130, 230, 530) exposing only a portion of the burr bit for burring of the offending bone and protects the nerve from the burr tip. The instrument may also be configured with a soft tissue resecting tip (330) for soft tissue resection.

The invention relates to an adjustable lumbar scraping spoon, and belongs to the technical field of medical apparatuses of orthopedic operation instruments of medical equipment. The adjustable lumbarscraping spoon comprises an adjusting structure, scraping structures, an upper fixing structure and a lower fixing structure; the scraping structures are symmetrically arranged between the upper fixing structure and the lower fixing structures; the upper fixing structure and the lower fixing structure are connected through the adjusting structure; when the adjusting structure is loosened, the scraping structures are in a shrunk state, and when the adjusting structure is locked, the scraping structures are in an opened state. The adjustable lumbar scraping spoon is simple in structure and smartin design, in the scraping process, the scraping structure of the adjustable lumbar scraping spoon can be adjusted, the contact area between the scraping structures and the intervertebral disc and / orthe vertebral body cartilage end plate is increased, the single time tissue scraping amount is increased, the scraping spoon is very suitable for scraping the lumbar nucleus pulposus and the cartilage end plate in a small incision or a minimally invasive channel, and the requirement for minimally invasive operation use is met.

The invention discloses a dental curette storage device for easy replacement of joints, which comprises a main shell, a semi-closed plate, a storage box, an electric push rod, a first connecting horizontal bar, a second connecting horizontal bar, a connecting vertical bar, a third Connecting bar, bracket, dynamic fixed block, static fixed block, dental curette joint, screwing groove, fixed frame, telescopic rod, drive shell, indexing motor, nut, dental curette main rod, hexagonal column, screw Joint stud, electric push rod control button and indexing motor control button. The present invention has a reasonable structural design. The dental curette is divided into a dental curette joint and a dental curette main rod. By replacing the dental curette joint on the dental curette main rod, different models and types of dental curettes can be obtained without preparation. A variety of dental curettes reduce the cost of dental care, and the replacement of the dental curette joints is realized by using the dental curette main rod installation mechanism and the dental curette joint fixing mechanism, which is convenient and quick, and provides convenience for dental medical staff.

The invention discloses a multi-angle diversion straw type curette for otolaryngology, and relates to the field of medical apparatuses and appliances. The multi-angle diversion straw type curette forotolaryngology comprises a curette body and a curette bracket. The multi-angle diversion straw type curette for otolaryngology is characterized in that the curette body comprises a first attracting needle, a second attracting needle and a rubber tube which is connected with the first attracting needle and the second attracting needle; a handgrip sleeve is arranged outside the second attracting needle in a covering manner; an air duct is connected to one end away from the rubber tube, of the second attracting needle; a curette head is arranged at the end of the first attracting needle; and a socket in a joint of the first attracting needle and the curette head is an extracting opening which is in the shape of a tangent oblique opening. According to the multi-angle diversion straw type curette for otolaryngology disclosed by the invention, through rotating an adjusting rotating button, and under the situation that the meshing relationship between the rotating button and a screw rod is adjusted, a traction rod is driven to rise or fall; when the traction rod is in up-and-down traction movement, the second supporting rod can be jacked up or pulled down; and the inclined angle between the first bracket and the second bracket is adjusted, so that the inclined angle between the first attracting needle and the second attracting needle is adjusted.

The invention discloses a cleaning and disinfecting device for medical apparatus and instruments of the gynecology, relates to the technical field of medical cleaning and disinfecting devices, and aims to solve the problems that the existing disinfecting device is not reasonable enough in optimization design, a medical apparatus (such as a uterus curet and the like)needs to be manually taken and dismantled after disinfection, both time and labor are wasted, and application is inconvenient. The cleaning and disinfecting device comprises a digesting box, two rotary shaft rods and a double-threadworm; the digesting box integrally takes a rectangular structure; two accommodating boxes are symmetrically welded and supported on the left and right sides of the top end of the digesting box; a water leaking hole is formed in the bottom middle of the inner wall of each of the accommodating boxes in a penetrating manner; an electric push rod is mounted in the middle of the bottom of the rear side of the digesting box in a locking and vertical supporting manner; and a bracket taking the shape of the Chinese character ji is connected with the head end of the telescopic rod of the electric pushrod in a locking and supporting manner. Through rotary meshing of the double-thread worm and two worm wheels, the cleaning and disinfecting device can synchronously drive the two rotary shaft rods torotate and changes the support angles of a thick supporting and carrying rod and a thin supporting and carrying rod on the two rotary shaft rods.

An articulating ear curette comprises a curette tip connected to a first actuator arm through a first molded-in living hinge and to a second actuator arm through a second molded-in living hinge. The actuator arms are slidably connected to one another such that relative movement of the first and second actuator arms in opposite directions causes movement of the tip about the first and second living hinges. The articulating ear curette may be utilized to remove cerumen or a foreign body from an ear canal.