151 results about "Bone drilling" patented technology

A drilling guide cannula, having a serrated distal end in the form of axially moveable teeth which enables all or most of the teeth to maintain biting contact with the bone surface, essentially independently of the curvature of the bone surface and the drilling angle. The cannula outer wall incorporates a number of pins arranged circumferentially around the drilling bore. These pins slide axially relative to the cannula, preferably in bored holes or in channels formed within the wall of the cannula. Each of the secondary pins has a sharpened distal end, each constituting a moveable tooth. The cannula is applied to the bone to be drilled at the desired drilling position and angle, and the pins are forced axially towards the bone surface. The pins take up the contour of the bone surface and each pin bites into the bone surface to rigidly position the drilling guide cannula.

The invention provides a zygopophysis bone drilling device capable controlling bone drilling depth. The zygopophysis bone drilling device structurally comprises a positioning sleeve and a bone grinding drill, wherein the bone grinding drill is characterized in that an operating handle is connected with the upper end of a cylindrical straight-shank drill rod; a drill bit is arranged at the lower end of the drill rod; a section of threaded section is arranged on the drill rod adjacent to the operating handle; the major diameter of the threaded section is larger than the diameter of the drill rod; a limiting nut is in threaded connection with the threaded section; the positioning sleeve is characterized in that a cylindrical channel axially penetrating through and used for allowing a drill rod of the bone grinding drill to be inserted in a penetrating manner is formed in a sleeve body; a flaring section which can accommodate the threaded section of the drill rod is arranged at the upper end of the channel; and a wide-mouth spoon groove or a wide-mouth bracket which can straddle the zygopophysis is arranged at the lower end of the sleeve body. By adopting the zygopophysis bone drilling device provided by the invention, the superior articular process can be positioned accurately, and the bone grinding depth can be controlled, so that on the premise of safety and stability, bone substances blocking in the direction of an operative approach can be accurately eliminated through grinding and an accurate and wide implantation space is provided for the working sleeve.

The invention discloses a medical five-axis bone drilling device. The medical five-axis bone drilling device comprises a frame and a working platform, a bone fixture is arranged on the working platform, a Y-axis movement control mechanism, a rotary shaft movement control mechanism and an overturning shaft movement control mechanism are arranged below the bone fixture, a bone drilling instrument matched with the bone fixture for positioning a bone to be drilled is arranged above the bone fixture and is connected with a Z-axis movement control mechanism and an X-axis movement control mechanism, and a five-axis linkage numerical control system is arranged beside the frame and controls one or more of five axes to move independently or combinationally. The medical five-axis bone drilling device is capable of linearly moving in the X-axis, Y-axis and Z-axis directions and accurately positioning when rotating and overturning, and can be used for processing and cutting bones at multiple angles freely, so that processing precision and working efficiency are improved. The medical five-axis bone drilling device is compact and reasonable in structural design and less prone to bacterium breeding, thereby completely meeting various requirements on medical bone processing.

A high-safety bone drilling device for the department of orthopaedics comprises a bottom plate, a supporting plate, a frame device, a motor device, support devices, air cylinder devices, a friction device, pushing devices and fixing devices. The bottom plate is provided with first supporting blocks and first rolling wheels. The supporting plate is provided with a first square hole, first supporting rods and first connecting blocks. The frame device comprises a frame, first supports, second supports, a first cross rod, first springs, third supports, first connecting rods, a first positioning plate and a positioning ring. The motor device comprises a first motor, a first rotating shaft, a second cross rod, a positioning rod, first bent rods, a second spring, a second rotating shaft and a drill bit. Each support device comprises a moving rack, a first inclined rod, third springs, a triangular block, a fourth spring and a fifth spring. Each air cylinder device comprises an air cylinder, a pushing rod, a second connecting rod, a rotating block and a second supporting rod. Each friction device comprises a cushion block and third supporting rods. The high-safety bone drilling device for the department of orthopaedics can be used for drilling the bone of a patient stably and relieves the labor intensity of a doctor.

A bone material removal device including a cannula, a bone drilling forward tip and a bore widening element including a bone carving portion that slides axially relative to the cannula and extends in a circumferential direction and wherein the axial movement of the bore widening element relative to the cannula brings a carving portions to travel and extend radially in a circumferential direction beyond a surface of the cannula and carve bone from a wall of a bore.

Powdery bone chips may occur during K-wire bone drilling and are difficult to discharge, which easily causes a rise in the drilling temperature. At present, high heat generated by most applied K-wireshave no chip groove during drilling may damage bone cells. In order to solve the main problem, the invention designs the processing method and apparatus of a K-wire with chip grooves, mainly comprising a grinding system and a clamp system; the grinding system mainly comprises motorized spindle I(7), motorized spindle II(2), grinding wheel (5) and micro saw blade (4); the clamp system mainly comprises rotary graduated disc (11), tiltable rotary workbench (13) and rotary workbench (16). The operating principle for the processing method and apparatus of the K-wire with the chip grooves refers tothe fact: a slant is made at the tip of the K-wire by grinding, with chip grooves in various shapes processed, such that bone chips can be discharged in time and drilling temperature can be decreased.

The invention discloses an internal-hole-expanding bone driller, relating to the field of medical apparatus and instruments for the department of orthopaedics. The internal-hole-expanding bone driller comprises a hole-expanding turntable, wherein the axis of the upper surface of the hole-expanding turntable is connected with the output end of a hole-expanding motor; a sliding chute is arranged in the radial direction on the lower surface of the hole-expanding turntable; the lower surface of the hole-expanding turntable is provided with a bone-drilling motor; a sliding block is arranged at the axis position at the upper end of the bone-drilling motor, is positioned in the sliding chute, and is in sliding connection with the sliding chute; an electric push rod is arranged at one end inside the sliding chute; the output end of the electric push rod is connected with the sliding block; the tail end of the sliding chute is provided with a change-over switch of the electric push rod and the bone-drilling motor; the output end of the bone-drilling motor is connected with a drilling rod; and the other end of the drilling rod is provided with a tapered drill bit with the diameter being greater than that of the drilling rod. The internal-hole-expanding bone driller has the beneficial effects that during use, the internal-hole-expanding bone driller can carry out the hole expanding operation inside the bone, so that the inside hole is larger than a hole penetrating from the upper side.

An apparatus and method for performing painless bone marrow biopsy that requires only a single procedural pass to the biopsy bone site is disclosed. The biopsy device combines dermatotomy, anesthesia and marrow specimen extraction functionality and inherently aligns the bone drilling site with the site of anesthetic delivery by incorporating a transport channel that may be used for anesthetic delivery, into the biopsy needle used for bone access and bone marrow sample retrieval. The biopsy device also discloses a right angle drill interface and multiple side-access ports for aspiration and anesthetic syringe attachments. A novel syringe/plunger system comprising vacuum tube fitted plungers for quick transfer of marrow specimen sample without requiring a second non-sterile assistant is also disclosed.

The invention discloses a self-tightening type bone drilling machine head. The self-tightening type bone drilling machine head comprises a chuck component and an end cam pair. The chunk component comprises a clamping jaw group and a guide sleeve for the clamping jaw. The clamping jaw group clamps or releases drills through the axial relative movement of the clamping jaw group and the guide sleeve for the clamping jaw. The end cam pair comprises a power input end and a power output end. The power input end receives driving power, and the power output end outputs the power to the clamping jaw group. The self-tightening type bone drilling machine head is a structure to realize tightening on the clamping jaw component through the axial movement of the guide sleeve for the clamping jaw and a structure with conical surface, drill locking through a key is not needed, and the use is convenient and simple. The end cam pair is utilized to drive the transmission, in the using process after a drill is clamped, the clamp force of the chunk on the drill is increased along with the increase of a torque, the self-tightening function is achieved, the reliability of clamping is good, the massive structure is compact, and improving of the work efficiency is improved.

The invention provides a bone vibration drilling platform with a parameter measurement function, comprising two parts, namely, a bone vibration drilling platform and a parameter measurement system. The bone vibration drilling platform comprises a vibration platform used for fixing a bone sample and providing controllable vibration, and a drilling platform used for controlling the height of a drill bit and a feeding speed. The parameter measurement system comprises a laser micro-distance sensor used for measuring the amplitude and the frequency of the vibration platform, a pressure sensor used for measuring a feeding force, and a small thermocouple temperature measurement unit for measuring temperatures at the drilled parts of the bone sample. The bone vibration drilling platform with a parameter measurement function provided by the invention can be used for realizing bone vibration drilling, and performing real-time online measurement on four parameters, namely, cutting heat, the feeding force, the vibration frequency and the amplitude during a drilling process, thus providing a hardware platform for searches on control means for the cutting heat during the bone drilling process. The method and the equipment used for the bone vibration drilling platform with a parameter measurement function provided by the invention are simple, low in cost and great in robustness.

The invention belongs to the technical field of surgical instruments and equipment, particularly relates to a depth-limited bone drill with a function of depth measurement and solves the problems that existing bone drills possibly cause damages to soft tissues, vessels and nerves and drilling and depth measurement are carried out separately due to functional singleness. The depth-limited bone drill with the function of depth measurement comprises a drill rod, a protective bushing and a display mechanism, the protective bushing is capable of sliding relative to the drill rod and capable of braking at any time and shrinking limitedly, and the display mechanism is used for displaying a slide distance of the protective bushing relative to the drill rod. The movable drill bushing capable of braking at any time is abutted against the bone surface and capable of retracting by a certain distance after braking, so that limited precision drilling depth is realized, and the soft tissues, vessels and nerves in human bodies can be protected from being accidentally injured by the drill rod in a bone drilling process.

The invention provides a technical scheme of a bone drill for centrum. The bone drill comprises a drill bit, a drill rod and a drill handle, and is characterized in that a flexible drill rod is fixedly connected between the drill bit and the drill rod, and the length of the flexible drill rod is within a range of 15-40mm. The bone drill is specifically characterized in that the flexible drill rod is of a flexible shaft structure. The flexible drill rod with the flexible shaft structure is made of a stainless steel material. The length of the flexible drill rod is 30mm. According to the bone drill for centrum, a rigid drill rod is changed into the flexible drill rod, one section, behind the drill bit, of the flexible drill rod can be bent. The flexible drill rod is capable of changing a drilling direction of the drill bit, and a channel is drilled through according to a direction required by an operation.

The invention provides an adjustable-length simple-and-convenient-to-operate bone drill device. The bone drill device comprises a hollow cylinder, a bone drill rod group and a positioning device, wherein the bone drill rod group is movably connected onto the hollow cylinder, and the positioning device is used for positioning the bone drill device; the bone drill rod group comprises a first bone drill rod and a second bone drill rod; a first sliding groove and a second sliding groove are respectively formed in the two sides of the hollow cylinder; a first sliding block is arranged on one side of the first bone drill rod, the first sliding block is matched with the first sliding groove, a second sliding block is arranged on one side of the second bone drill rod, and the second sliding block is matched with the second sliding groove; the positioning device comprises a positioning support and the positioning support is arranged at the bottom of the hollow cylinder; a bone clamping device is movably connected onto the positioning support. The adjustable-length simple-and-convenient-to-operate bone drill device has the advantages that not only is the device simple in structure and convenient to carry, but also the depth of bone drilling after bone positioning can be accurately adjusted by the user according to the actual situation, and the operation is simple and convenient to conduct.

The invention discloses an orthopedic bone drilling automatic water injection device which structurally comprises a water inlet pipe, a water suction pump, a water storage tank, a water level measuring ball, a medicine adding hopper, a water injection booster pump, a water injection pipe, a water injection channel, a one-key control device, a battery, a bone drilling gun, a rear cover, a drillingbit, a drilling pin and a grab handle. The water inlet pipe perpendicularly penetrates the rear cover, is embedded inside the water storage tank and is connected with the water suction pump by means of electric welding, the water suction pump is arranged on the right side of the inside of the water storage tank, the rectangular water storage tank is arranged inside the bone drilling gun, and vertical pipelines are arranged inside the water storage tank. The orthopedic bone drilling automatic water injection device has the advantages that the orthopedic bone drilling automatic water injection device is provided with the one-key control device, different degrees of push pressures can be applied to a button, accordingly, the drilling bits and the water injection booster pump can be controlled, the orthopedic bone drilling automatic water injection device is easy and convenient to manipulate, the convenience of the orthopedic bone drilling automatic water injection device can be effectively improved, bone drilling water injection work can be simplified, and the orthopedic medical efficiency can be improved.

The invention relates to technical field of medical instruments and equipment, in particular to a disposable sterile drill for the orthopedics department. The drill is characterized by comprising a drill center rod, a drill body and auxiliary drilling sleeves; the bottom of the center rod is integrally connected with the drill body; threaded segments are arranged at the end, close to the drill body, of the drill center rod, and the drill center rod is in threaded connection with threaded grooves in the tops of the auxiliary drilling sleeves through the threaded segments; milling cutters distributed in an annular shape are arranged on the bottom end faces of the auxiliary drilling sleeves; gaps are formed between the inner circumferences of the auxiliary drilling sleeves and the drill center rod, and annular through hole communicated with the gaps are formed in the tops of the auxiliary drilling sleeves. According to the disposable sterile drill for the orthopedics department, by arranging the auxiliary milling cutters distributed in the annular shape, the working intensity of the drill is lowered, and slight cooling is achieved; bone debris can be milled by the auxiliary milling cutters and guided and discharged through the gaps and threaded rotation teeth, and the possibility of bone fracturing during bone drilling is reduced; through a mode of filling cooling liquid by usingthe hollow drill center rod, cooling is achieved, and the effects of lowering the temperature of the drill and protecting the peripheral skeleton are achieved.

The invention relates to a scrapping and grinding device and an operation method thereof. The scrapping and grinding device comprises an upper casing and a base, wherein a bone drilling cavity is arranged along the inner wall of the upper casing in the upper casing; a bone drill bit is vertically arranged in the bone drilling cavity; the bone drill bit is controlled by and connected with a micro motor. The scrapping and grinding device is characterized in that one third of outer wall surface of the upper end of the bone drill bit adopts a toothed spherical surface, another one third of outer wall surface adopts a smooth spherical surface, and the rest one third of outer wall surface adopts a stepped rib spherical surface; the lower end of the bone drill bit is connected with a rotary sliding sleeve; external threads are formed in the outer wall surface of the lower end of the bone drill bit; internal threads are formed in the inner wall surface of the upper end of the rotary sliding sleeve; the external threads are matched with the internal threads; the bottom of the rotary sliding sleeve is fixed to the base; the base and the upper casing form axial rotary fixing. The scrapping and grinding device can perform operation of grinding, scrapping, attracting and rubbing on bone tuberculosis lesion, and achieves the purpose of minimally invasive surgery; meanwhile, attraction and illumination are beneficial to lesion exposure; an external display can magnify the lesion and reserve surgery video.

A seven-degrees of freedom modular robotic device is provided for controlling an instrument, e.g. a bone-drilling or milling device with a precision of about 50 μm and maximum force of 50 N. The robotic device is a serial kinematic chain of six rotational degrees of freedom and one translational degree of freedom.

The invention relates to a stepping type precise feed bone drilling device and application thereof. The stepping type precise feed bone drilling device comprises an outer shell and a handle which is connected to the bottom of the outer shell, wherein a drill, a stepping motor, a stepping motor driving circuit, a control unit and a display which are successively connected are arranged in the outershell; the front end of the drill extends out of the outer shell; the display is arranged at the tail end of the outer shell; a gear adjuster is arranged on the handle and is electrically connected with the stepping motor driving circuit; and the feed depth of the drill is adjusted and controlled by the gear adjuster. The bone drilling device is skillful in structural design, simple to operate andconvenient to use; a traditional bone drilling mode can be replaced; and by the bone drilling device, it can be ensured that in a small-step-pitch feed state, even if a skull is pierced, large allowance exists between the drill and a meningeal, other brain tissues cannot be damaged, and the medical safety of a patient is protected to a maximum extent. Actions are obvious, effects are remarkable,and thus, the stepping type precise feed bone drilling device is worthy of being popularized and used.