71 results about "Broken nail" patented technology

A multiaxial combined and matched type anti-infection semi-pelvic false body comprises an acetabulum and net cup plate wing which is arranged on the top of the acetabulum and can be fixed on a reserved hip bone wing. Two to three universal joints are arranged on the back of the net cup plate wing. The universal joints are opened with a card slot which can be connected with a universal bar. The invention can arbitrarily adjust the height and the point of view of the acetabulum through the combination of the universal joints and the acetabulum to realize the truly anatomical location reconstruction of the hip joint which is not affected by the resection range. The reconstruction of the connection of the pelvic ring and the acetabulum takes the way of universal multi-axis in order to conveniently adjust the location of the acetabulum, thereby assuring the coherence of the limb length after being reconstructed. The location of the acetabulum can be adjusted according to the removal situation of the soft tissue in the operation. Through the sacrum and the contact point of the universal screw of the ischiopubic multi-axis point driven into the pelvic ring, especially multi-nail fixation driven into the lumbar, the hardening stress can be scattered, the hardening stress concentration can be reduced to reduce the complicating disease such as looseness and broken nails.

The invention discloses a broken nail extractor for orthopaedics. The broken nail extractor comprises a nail extracting tube, an enclasping tube, an expander, enclasping clamps, arc-shaped saw blades, annular pawls and radial pawls; the expander is arranged in the nail extracting tube in a screwed manner, and the enclasping tube is arranged outside the nail extracting tube in the screwed manner; a handle is arranged at the upper end of the nail extracting tube, limiting threads are formed in the inner side of the nail extracting tube, a plurality of enclasping clamps and arc-shaped saw blades are arranged at the lower end of the nail extracting tube, a plurality of annular pawls and radial pawls are arranged on inner side faces of the arc-shaped saw blades, and clamp-interior convex joints are arranged at inner sides of the enclasping clamps; a hand grip is arranged at the upper end of the expander, and an expanding bar with expanding ball joints is arranged at the lower end of the expander; the arc-shaped saw blades at the front ends of the enclasping clamps are used for clamping and fixing a broken nail through the annular pawls and the radial pawls which are arranged at the inner sides of the arc-shaped saw blades. According to the broken nail extractor for orthopaedics, the arc-shaped saw blades at the front ends of the enclasping clamps are matched with the annular pawls and the radial pawls, and end parts of broken nails are effectively fixed by the annular pawls and the radial pawls, so that the broken nails are extracted rapidly and conveniently, the groove sliding of the broken nails is prevented, and the efficiency of surgical operation is increased.

The invention discloses practical nail removing equipment for the department of orthopedics. The practical nail removing equipment comprises a nail removing bracket, a positioning bracket connected with the nail removing bracket, a nail removing base fixedly connected to the upper surface of the nail removing bracket and a nail remover movably arranged on the positioning bracket, wherein the nail remover comprises a main board, a cutting sleeve capable of rotating to cut a steel plate, a nail removing mating part penetrating in the main board as well as a nail removing assembly; a connecting flange capable of being in rotating fit with the cutting sleeve is arranged at the lower part of the main board, and a first driving motor capable of being used for driving the cutting sleeve to rotate is arranged at the side part of the main board. The practical nail removing equipment is characterized in that the nail removing mating part comprises a mating cylinder, a first holding handle connected to the upper end of the mating cylinder, a grabbling claw arranged at the lower end of the mating cylinder and a movable sleeve capable of being arranged outside the mating cylinder in a vertically moving and sleeving manner to open and close the grabbing claw. The nail corroded together with the steel plate can be removed smoothly, a broken nail is also taken out conveniently and rapidly, and secondary harm to a patient is avoided effectively.

The invention discloses a novel nail taking device for the orthopedic department. The novel nail taking device comprises a base, a saddle arranged on the base, a nail taking cross rod oppositely arranged above the saddle and a nail taking device body which can move leftwards and rightwards and is arranged on the nail taking cross rod, wherein the nail taking device body comprises a main plate, a cutting sleeve capable of rotating and cutting a steel plate, a nail taking matching piece penetrating into the main plate and a nail taking assembly; a connection flange rotationally matched with the cutting sleeve is arranged at the lower part of the main plate; a first drive motor used for driving the cutting sleeve to rotate is arranged on one side of the main plate. The novel nail taking device is characterized in that the nail taking matching piece comprises a matching barrel, a first handle connected with the upper end of the matching barrel, a gripping claw arranged at the lower end of the matching barrel and a movable sleeve which can be arranged outside the matching barrel in a longitudinal moving manner and can open and close the gripping claw. With the adoption of the novel nail taking device, a screw rusted on the steel plate can be taken out smoothly, broken nails can also be taken out conveniently and quickly, and secondary harm to a patient is effectively avoided.

The invention relates to an anastomosis nail preparation device which comprises a core rod, a core rod support and a broken nail stamping die. The broken nail stamp die comprises an upper die set and a lower die set. The upper die set comprises an upper template, a left slider push rod, a right slider push rod and a core rod pressing block. The lower die set comprises a core rod stand positioning module, a left slider, a right slider, a left broken nail stamping knife and a right broken nail stamping knife. The anastomosis nail preparation device improves the yield, reduces the labor cost and avoids the problems that the anastomosis nails produced in a manual manner are poor in consistency, the nail tips are blunt, the nail bodies deform, burrs exist on the head parts of the nails and that damages are caused to the nail bodies when the manual filing technique is adopted to produce the anastomosis nails.

The invention relates to the technical field of medical instruments, in particular to an inverse stretching type broken intramedullary nail extractor. The inverse stretching type broken intramedullary nail extractor comprises a sliding weight assembly, a working sleeve and an operating marrow core. The working sleeve is used for penetrating through an inner cavity of a broken intramedullary nail to reach the farthest end of the broken intramedullary nail. The operating marrow core is arranged in the working sleeve in a sliding mode, and an elastic clamping jaw for hooking the outer wall of the farthest end of the broken intramedullary nail is arranged at the free end of the operating marrow core. The sliding weight assembly is detachably installed at the end, away from the broken intramedullary nail, of the working sleeve. The working sleeve stretches into a marrow cavity and penetrates through the broken nail cavity to reach the farthest end of the broken nail, the operating marrow core stretches out of the working sleeve in a sliding mode, the elastic clamping jaw stretches out of the working sleeve and then pops up to hook the outer wall of the farthest end of the broken nail, and the sliding weight assembly stretches outwards to achieve extraction of the broken intramedullary nail. The inverse stretching type broken intramedullary nail extractor is simple in structure and high in operability, the clinical operation time is shortened, iatrogenic harm generated during operation is reduced, and the radiation damage to medical staff is greatly reduced.

The invention discloses a broken-nail extractor for orthopedics, in particular relates to a device for extracting a surgical fixation nail, belonging to surgical medical apparatus. The broken-nail extractor is characterized by comprising a drill hole guider, a drill head and a spiral nail-extractor, wherein one end of a guider connecting rod of the drill hole guider is provided with a guider handle and the other end is provided with a guider head shaped as a Chinese character Chang; the horizontal section of the guider head is provided with a guide hole for mounting the drill head; the oblique section of the guider head is provided with an auxiliary positioning nail; the broken-nail extractor is T-shaped; the upper end of a broken-nail extractor rod is provided with a broken-nail extractor handle perpendicular to the broken-nail extractor rod; the lower end of the broken-nail extractor rod is provided with a broken-nail extractor thread head with a conical truncate; and the thread direction of the broken-nail extractor thread head is a reverse thread, namely a left-hand thread. The broken-nail extractor has the advantages that a broken nail can be accurately positioned, drilled and extracted; the angle of the guide hole can be accurately adjusted and fixed according to requirements of a surgical part by the device so as to ensure that the direction of the drill hole is consistent with the direction of the central line of the broken nail; and thus the injury to the human body is relieved in the broken-nail extracting process, and the pain of a patient is relieved.

The invention discloses a nail removal device for an orthopedics department. The device comprises a base, a supporting table disposed on the base, a nail removal horizontal rod which is disposed oppositely above the supporting table as well as a nail removal device body which can be moved horizontally and disposed on the nail removal horizontal rod, wherein the nail removal device body comprises a main plate, a cutting sleeve which can be rotated to cut a steel plate, a nail removable matching part which passes through the main plate as well as a nail removal assembly; and a connecting flange which forms rotary fitting with the cutting sleeve is disposed on the lower part of the main plate, and a first drive motor which can drive rotation of the cutting sleeve is disposed on a side part of the main plate. The device is characterized in that the nail removal matching part comprises a matching cylinder, a first holding handle connected to the upper end of the matching cylinder, a grasping claw disposed on the lower end of the matching cylinder as well as a movable sleeve which can sleeve the matching cylinder in a vertically movable manner and can then open or close the grasping claw. The device disclosed by the invention has the advantages that a screw which is combined with a steel plate due to rusting can be taken out smoothly; a broken nail can be also taken out easily and quickly; and second-time harms to a patient can be effectively avoided.

The invention relates to medical appliances of orthopedic operations, and discloses a trepan broken-nail extractor. In the invention, an inverted-tooth trepan is arranged at the front port of a holding handle of the trepan broken-nail extractor, and the rear end of the holding handle is matched with the drill opening of an electric drill. Because the rear end of the holding handle can be matched with the drill opening of the electric drill, electromotive power can be used for replacing manpower to extract a broken nail when the broken nail is extracted. The invention greatly improves the efficiency of broken-nail extraction, saves the time and the labor and shortens the operation time, thereby reducing the time of intraoperative hemorrhage and wound exposure and reducing the incidence rate of postoperative wound infection.

The invention relates to the technical field of medical instruments, and discloses a nail taking-out device for the department of orthopedics. The nail taking-out device comprises a third motor. According to the nail taking-out device, the third motor is controlled to operate to enable a cutter wheel at the top of an output shaft of the third motor to be rotated, a groove can be cut out on the side face of a broken nail, after the groove is cut out, a sliding part is controlled to move to enable the broken nail to be located between a fixing block and a pressing plate, then a second motor is controlled to operate to enable the pressing plate to move inwards, a clamping block on the pressing plate is also clamped into the punched groove, the broken nail is clamped into a nail groove in thefixing block, at the moment, a rotating motor is controlled to operate, and thereby the broken nail can be slowly screwed out. The nail taking-out is simpler and more convenient, and because only theside face of the broken nail has the groove, the clamping block can be clamped in the groove without slipping, and thereby the nail taking-out effect is better. A negative pressure fan is operated tobe capable of absorbing metal chippings, generated during the broken nail is cut, through a negative pressure, the metal chippings are stored in a cloth bag through a conical groove and a cleaning groove, the metal chippings can be prevented from being scattered on a wound of a patient, and thereby the nail taking-out is safer.

The invention relates to a preparation method of an anastomosis nail. A broken nail stamping knife in a broken nail stamp engages in compound motion to cut the titanium wires wound on a core rod at a certain angle. In such a way, a finished anastomosis nail can be obtained. The preparation method for producing anastomosis nails improves the yield, reduces the labor cost and solves the problems that the anastomosis nails produced in a manual manner are poor in consistency, the nail tips are blunt, the nail bodies deform, burrs exist on the head parts of the nails and that damages are caused to the nail bodies when the manual filing technique is adopted to produce the anastomosis nails.

The invention provides automatic feeding and nail distributing equipment, which comprises a bottom plate, a vibrating disc device, a nail distributing mechanism, a conveying pipe and a reverse nail collecting box, wherein the vibrating disc device is arranged on the bottom plate, the nail distributing mechanism is arranged on one side of the vibrating disc device, the reverse nail collecting box is arranged below an outlet of the nail distributing mechanism, one end of the conveying pipe is communicated with a discharging port of the vibrating disc device, and the other end of the conveying pipe is communicated with a feeding port of the nail distributing mechanism. The automatic feeding and nail distributing equipment has the advantages of being simple in structure, convenient to use, easy to operate, free of manual operation and high in working efficiency; nail distribution is smooth, nail clamping is avoided, and broken nails can be automatically removed; through holes are formed inan anti-reverse plug pin, a first plug pin and a second plug pin respectively, each through hole can only accommodate one rubber nail, only one rubber nail is output every time when the nails are conveyed, nail distribution and conveying of the rubber nails are very smooth, and the phenomenon of nail clamping or nail cutting cannot occur; and the automatic feeding and nail distributing equipmentis provided with a nail distributing air cylinder device, the nail distributing air cylinder device is used for driving, automatic nail feeding can be achieved, and the nail feeding efficiency is improved.

The invention discloses a novel broken nail extractor used for bone surgery. The novel broken nail extractor comprises a top board. The top of the top board is equipped with an open-source single-chipmicrocomputer. The bottom of the top board is provided with a positioning device and an adjusting mechanism. The bottom of the adjusting mechanism is equipped with an elevating mechanism. An extraction mechanism is arranged on the bottom of the elevating mechanism. An input end of the open-source single-chip microcomputer is connected with an output end of an externally-connected power supply. The positioning device is used for positioning the position of a broken nail. The positioning device is highly intelligent and capable of accurately positioning so that the working capability of the broken nail extractor is greatly improved. The adjusting mechanism can adjust the working position of the extraction mechanism and shows great flexibility and automation level. Therefore, convenience isoffered to work of medical staff. The extraction mechanism can extract the broken nail and shows great maneuverability. Therefore, the operation difficulty of medical staff is greatly decreased. The novel broken nail extractor saves time and labor.

The invention provides a vertebral body resetter, which comprises a head, a main body and a tail. The head includes a hinge structure comprising at least two sets of hinges, each set of hinges comprising at least four interconnected hinge pieces. During the distraction process of the vertebral body reducer, the head functions as a skeleton, which is spontaneously arranged to form an arc and is stereoscopically distracted in all directions. The umbrella-shaped head design of the present invention can cause the vertebral body to be stretched in the sagittal and coronal directions, and a negative pressure cavity is formed in the horizontal direction to accommodate the bone fragments protruding into the spinal canal and relieve the compressive damage to the spinal nerve. The umbrella-shaped space can effectively increase the contact area and better integrate with bone cement or bone graft materials, thereby reducing the risk of broken nails and rods after surgery.

The invention provides a slide fastener extractor for a broken intramedullary nail. The extractor comprises a first guide wire and a second guide wire, wherein a bulb or claw is arranged at one end of the first guide wire, and is used for hooking the end part of a broken intramedullary nail and / or the screw hole of the broken intramedullary nail; the second guide wire and the first guide wire are inserted into the broken intramedullary nail for increasing the friction between the first guide wire and the broken intramedullary nail and helping the bulb or claw be fixed on the broken intramedullary nail. The slide fastener extractor especially comprises two parts, namely the first guide wire and the second guide wire, wherein the end part of the first guide wire is of a claw structure or a bulb structure, and is used for extending into the intramedullary nail to hook the end part of the broken nail or clamp into the threaded hole of the broken nail; then, the second guide wire is inserted into the broken nail, and the first guide wire is tensioned by the second guide wire, so that the claw or bulb is steadily connected with the broken nail; and finally, the broken nail is drawn out by utilizing the first guide wire and the second guide wire.

The invention discloses a broken nail removing device and relates to a hardware tool, in particularly a manual tool capable of taking a broken nail out easily. The technical problem to be solved by the invention is to provide a broken nail removing device capable of removing a broken nail easily. The device has a round cone body which thickens gradually from bottom up; prominent notches are formed on the two sides of the cone body; the notches on the two sides are in the same direction; a hole is formed on the upper part of the cone body; and the upper end of the cone body is provided with a handle. The using method of the device is convenient, the operation is simple, the broken nail can be removed easily just by using a simple tool, and time and labor are thus saved; the device is suitable for connecting screws of any metal part and avoids damage to the connected metal part; and a blank in the field of hardware tools is filled.

The invention discloses a broken nail extractor. The broken nail extractor comprises a round tube with a milling opening and a locking opening, wherein milling teeth extending downwards are annularly arranged on the milling opening of the round tube, a polygonal clamp piece is mounted at the upper end of the round tube through a connecting mechanism, an inner barrel with the opening arranged downwards is inserted into the round tube, clamping pieces extending downwards and supported to be open towards the outside are annularly arranged at the opening of the inner barrel at intervals, clamping teeth extending axially are arranged on the inner walls of the clamping pieces, all the lower ends of the clamping pieces are positioned on the axial extension locus of the round tube, a polygonal column is fixedly arranged at the upper end of the inner barrel, external threads are arranged in the middle of the inner barrel, and internal threads in screwing match with the external threads are arranged in the middle of the inner wall of the round tube. The broken nail extractor has the effects that the outer ends of broken nails can be fixed and connected rapidly, in addition, the broken nails can be screwed out smoothly, the operation is convenient, one person can complete the operation, moreover, the wound surface is small, and thus the rapid rehabilitation after the operation can be benefited.

The invention discloses a broken-nail extractor for orthopedics, in particular relates to a device for extracting a surgical fixation nail, belonging to surgical medical apparatus. The broken-nail extractor is characterized by comprising a drill hole guider, a drill head and a spiral nail-extractor, wherein one end of a guider connecting rod of the drill hole guider is provided with a guider handle and the other end is provided with a guider head shaped as a Chinese character Chang; the horizontal section of the guider head is provided with a guide hole for mounting the drill head; the oblique section of the guider head is provided with an auxiliary positioning nail; the broken-nail extractor is T-shaped; the upper end of a broken-nail extractor rod is provided with a broken-nail extractor handle perpendicular to the broken-nail extractor rod; the lower end of the broken-nail extractor rod is provided with a broken-nail extractor thread head with a conical truncate; and the thread direction of the broken-nail extractor thread head is a reverse thread, namely a left-hand thread. The broken-nail extractor has the advantages that a broken nail can be accurately positioned, drilled and extracted; the angle of the guide hole can be accurately adjusted and fixed according to requirements of a surgical part by the device so as to ensure that the direction of the drill hole is consistent with the direction of the central line of the broken nail; and thus the injury to the human body is relieved in the broken-nail extracting process, and the pain of a patient is relieved.

The invention provides a medical bone internal broken nail removal and pulling trephine bit. According to the trephine bit used for pulling and removing a bone internal broken nail, a barrel body is connected with the front end of a trephine holding rod, the front end of the barrel body is provided with annular saw teeth, several pressure reducing holes are formed in the barrel body, and a scale marking line for obtaining lengths is also arranged on the barrel body. When in use, the trephine bit can be aimed at the position of the bone internal broken nail, and can be drilled into a bone through rotation of the annular saw teeth, and a nail head broken into a tube can be taken out, thereby avoiding injuries to other tissues and reducing patient suffering.

An intrabony broken nail taking-off device is composed of main tubular body, front saw end, tail end, buffering node, force releasing window, push rod, screw bolt and nut. Its advantages are convenient operation, simple structure, and no damage to tissue and bone.

The invention relates to the field of a medical appliance, in particular to a broken nail taking-out device of an orthopaedic hollow nail. The device comprises a nail taking rod, wherein a handheld unit is arranged on a connecting part of the nail taking rod, and is used for being held by hands; the connecting part is fixedly connected with an expansion part; the expansion part is used for being inserted into the broken nail; an expansion block capable of moving in the axial direction of the expansion part is arranged on the expansion part; the expansion block outwards extends to be connectedwith the inner wall of the broken nail, so that the broken nail moves along with the expansion part and the connecting part. According to the broken nail taking-out device of the orthopaedic hollow nail provided by the invention, the structural design is reasonable; the advanced hole punching on the broken nail is not needed; the broken nail can be directly fixed and is then rotationally taken out; the damage to the bone around the broken nail is basically eliminated; the device is of a rod-shaped structure and can directly extends into the broken nail, so that the use and the operation are simple and convenient; and the broken nail taking-out quality and efficiency of the hollow nail are improved.

The invention discloses a roller type biomass and waste pyrolysis gasification incinerator, which includes a broken material pyrolysis gasification cylinder, a broken material pyrolysis gasification cylinder driving device and an incinerator body, the broken material pyrolysis gasification cylinder is arranged obliquely, broken nails are distributed on the inner wall of the broken material pyrolysis gasification cylinder, and the broken material pyrolysis gasification cylinder driving device is connected with the broken material pyrolysis gasification cylinder in a transmission mode, and usedfor driving the broken material pyrolysis gasification cylinder to rotate along the axis of the cylinder; and an opening and a material incineration platform are arranged on the incinerator body, theopening is formed in the furnace wall of the incinerator body, and the material incineration platform is arranged in the incinerator body below the opening. By arranging the broken material pyrolysisgasification cylinder, the broken material pyrolysis gasification cylinder driving device drives the broken material pyrolysis gasification cylinder to rotate in the axis direction, under twist-puncturing of the broken nails, materials in the cylinder is broken, in the process of breaking, hot air in the incinerator conduct drying pyrolysis treatment on the materials in the cylinder, the materialscan be exposed to the hot air due to the constant turnover state of the materials in the cylinder, material accumulation is avoided, the efficiency of drying pyrolysis gasification is improved, the operation steps are simplified, the operation difficulty is lowered, and the treatment cost of the materials is lowered.

A broken nail extractor comprises a hollow trephine, a threaded needle and a connection rod. A plurality of end teeth are arranged at the ring end of the head portion of the hollow trephine, spiral teeth are arranged on the rear portions of the end teeth, trephine inner holes are arranged at the centers of the end teeth, and the outer rear portions of the end teeth are tapered, and drill type spiral grooves are arranged at the tapered rear end. Inner threads are arranged on the rear portion of the hollow trephine, the threaded needle is arranged in the hollow trephine, the front end of the threaded needle stretches out of the trephine inner holes, and the connection rod is arranged at the rear end of the threaded needle. The broken nail extractor has the advantages that an alpha tapered angle is arranged on the head portion, and no resistance exists when bones around a broken nail is drilled; the plurality of the end teeth are arranged on the head portion, so that the extractor is sharp during bone extracting; hollow trephines with different diameters are provided according to different sizes of broken nails; the rotation directions of the grooves on the head portion are leftward; and threads on the tail portion are left-hand threads, the screwing direction is in accordance with the drilling direction during matching usage with the threaded needle and the connection rod, and looseness of connection threads is prevented.

The invention discloses a nail clipper, which ensures that the clipped broken nails can not spatter everywhere. The nail clipper comprises a warp, a pin shaft, an upper clipper body and a lower clipper body, wherein the tail parts of the upper clipper body and the lower clipper body are connected, a jaw is respectively arranged at the end parts of the upper clipper body and the lower clipper body; a pin cap is arranged at the bottom of the pin shaft, a bayonet is arranged at the top part of the pin shaft; a pin hole matched with the pin shaft is respectively arranged at the front parts of the upper clipper body and the lower clipper body, the pin shaft penetrates from the pin hole of the lower clipper body and penetrates out from the pin hole of the upper clipper body; the front end of the warp is arranged on the bayonet of the top part of the pin shaft, and a pair of mutually matched side baffles are respectively arranged on two side edges of the upper clipper body and the edge of one side corresponding to the lower clipper body so that the two pairs of baffles respectively ward off an opening between the upper clipper body and the lower clipper body when the jaws of the upper clipper body and the lower clipper body are folded. The invention has the advantage of retaining the clipped broken nails in the nail clipper, thereby being very convenient to clear.

The invention discloses a broken nail removal device for the orthopedics department. The broken nail removal device comprises a device body, the device body is provided with a main rod, one side of the main rod is detachably connected with a horizontal rod, a first mounting side rod is fixedly mounted at the other side of the main rod and movably connected with a connecting rod, a clamping head iswelded to the bottom of the connecting rod, a limit bolt is mounted at the side end of the first mounting side rod, the connecting rod is fixedly connected with the first mounting side rod through the limit bolt, and the bottom of the main rod is fixedly connected with a retractable main rod; the broken nail removal device is provided with a punching mechanism and a nail removal head, a threadeddrill bit is arranged on the punching mechanism, and a threaded hole can be drilled in a broken nail through the threaded drill bit and then is in threaded connection with the threaded drill bit through the nail removal head so that the broken nail can be removed by rotating the horizontal rod. The broken nail removal device is reasonable in structure and convenient to operate, compared with traditional modes of etching outer threads on broken nails, damage to bones is smaller, and the pain of patients is relieved.