94 results about "Bone chip" patented technology

A spinal implant for intervertebral disc replacement. The implant is formed from two hemicylindrical elements, each engaging one of an adjacent pair of vertebrae. An articulating ball-and-socket joint between the two elements resists compression and lateral movement between the vertebra, but allows pivotal movement, thereby preserving mobility. Fusion chambers are provided for allowing bone ingrowth to fuse the elements to the vertebrae. Biocompatible, bioreabsorbable struts, shims, fillers and / or end caps are provided for temporary stabilization of the first and second hemicylindrical elements. Bone chips removed from the vertebrae during implantation or bone growth stimulators can be inserted into the fusion chamber or otherwise applied to the implant to enhance bone ingrowth.

A spinal implant for intervertebral disc replacement. The implant is formed from two hemicylindrical elements, each engaging one of an adjacent pair of vertebrae. An articulating ball-and-socket joint and / or rocker and channel between the two elements resists compression and lateral movement between the vertebra, but allows pivotal movement, thereby preserving mobility. Fusion chambers are provided for allowing bone ingrowth to fuse the elements to the vertebrae. Biocompatible, bioreabsorbable struts, shims, fillers and / or end caps are provided for temporary stabilization of the first and second hemicylindrical elements. Bone chips removed from the vertebrae during implantation or bone growth stimulators can be inserted into the fusion chamber or otherwise applied to the implant to enhance bone ingrowth.

The invention is directed toward a formable bone composition for application to a bone defect site to promote new bone growth at the site which comprises a new bone growth inducing compound of demineralized lyophilized allograft bone particles. The particle size ranges from about 0.1 mm to about 1.0 cm and is mixed in a hydrogel carrier containing a sodium phosphate saline buffer, the hydrogel component of the carrier ranging from about 1.0 to 5.0% of the composition and a pH between 6.8–7.4 with one or more additives of a cellular material, growth factor, demineralized bone chips or mineralized bone chips.

An apparatus and method for penetrating bone marrow is provided. The apparatus may include a housing such as a handheld body, a penetrator assembly, a connector that releasably attaches the penetrator assembly to a drill shaft, a gear mechanism, a motor and a power supply and associated circuitry operable to power the motor. The penetrator assembly may include a removable inner trocar and an outer penetrator or needle. It may also include a grooved trocar that allows bone chips to be expelled as the apparatus is inserted into bone marrow. Various connectors are provided to attach the penetrator assembly to the drill shaft.

Apparatuses and methods of treating a collapsed vertebra may include inserting cannulae into the damaged vertebral body and one or more adjacent vertebral bodies and repositioning the one or more adjacent vertebral bodies by manipulating one or more of the cannulae. Before or after repositioning the vertebral bodies, the method may further include passing through the cannula and into the damaged vertebra a disruption tool for fracturing the damaged vertebral body. Once the cortical bone is broken or otherwise disrupted, the height of the damaged vertebral body may be restored, for example by removing the disruption tool and inserting through the cannula another tool, implant, device and / or material to restore the height of the vertebral body and to restore normal spinal curvature in the affected area. Bone cement, bone chips, demineralized bone or other grafting material or filler may be added with or without an implanted device to augment the damaged vertebral body.

The bone marrow harvesting drill of the invention includes an inner needle having a cutting edge at the tip thereof; a tubular mantle that receives the inner needle thereinto so that the inner needle and the tubular mantle are detachably attached; and a lock mechanism that prevents the axial rotation of the tubular mantle and the inner needle relative to each other; the inner needle having a groove formed at the tip thereof projecting from the tubular mantle for discharging bone scraps produced by the cutting edge at the tip of the inner needle; and the tubular mantle having a cutting edge formed at the tip edge thereof and a helical groove extending from the tip edge to at least part of the peripheral surface of the tubular mantle so as to be flush with the groove of the inner needle.

This invention discloses methods and devices using ultrasound energy for resecting bone tissue during surgical procedures. The disclosure describes the use of ultrasound surgical saw consisting of an ultrasound generator, ultrasound transducer and ultrasound horn including a cutting blade to resect bone tissue without excessive temperature rise during typical surgical procedures. The cutting blade provides a self-clearing design that includes at least two teeth disposed to prevent accumulation of bone chips within the proximity of the teeth. The design of the cutting blade allows the mechanical motion of the blade and the emission of the ultrasound energy to remove accumulated bone chips and prevent excessive temperature rise.

Ceramic materials operable to repair a defect in bone of a human or animal subject comprising a porous ceramic scaffold having a bioresorbable coating, and a carrier comprising denatured demineralized bone. The ceramic may contain a material selected from the group consisting of hydroxyapatite, tricalcium phosphate, calcium phosphates, calcium carbonates, calcium sulfates, and combinations thereof. The compositions may also contain a bone material selected from the group consisting of: bone powder, bone chips, bone shavings, and combinations thereof. The bioresorbable coating may be, for example, demineralized bone matrix, gelatin, collagen, hyaluronic acid, chitosan, polyglycolic acid, polylactic acid, polypropylenefumarate, polyethylene glycol, or mixtures thereof.

A novel device and method for fusions inside a forward widely tapering human disc space. A stabilizing / guiding system is driven into and against the disc space. The device is further stabilized by spreading and gripping means inside both vertebral end plates. Rod retaining members hold calibrated rod units whose adapted tips perform reaming and threading of the disc space. Subsequently, the tapered cage or implant can be inserted by a free-hand method under direct vision into the prepared and tapered bed. Rod unit divergent angulation is preferably set to match that of the disc space as well as the implants so they obtain optimal distributed purchase of vertebral bone. In one embodiment, inserts are confluent with parallel medial walls rather than their long axes, increasing torsional or lateral translational stability and simplifying placement of additional bone chips. No tubular guide means are required.

A novel device and method for fusions inside a forward widely tapering human disc space. A stabilizing / guiding system is driven into and against the disc space. The device is further stabilized by spreading and gripping means inside both vertebral end plates. Rod retaining members hold calibrated rod units whose adapted tips perform reaming and threading of the disc space. Subsequently, the tapered cage or implant can be inserted by a free-hand method under direct vision into the prepared and tapered bed. Rod unit divergent angulation is preferably set to match that of the disc space as well as the implants so they obtain optimal distributed purchase of vertebral bone. In one embodiment, inserts are confluent with parallel medial walls rather than their long axes, increasing torsional or lateral translational stability and simplifying placement of additional bone chips. No tubular guide means are required.

Methods for increasing osteoinductivity and / or surface area of bone material are provided. The methods include providing bone material and dehydrating the bone material with a solvent at its critical point. A useful solvent for critical point dehydrating is carbon dioxide. Critical point dehydration resulting in increased osteoinductivity and / or surface area can be applied to many types of bone material including bone particles, bone chips, bone fibers, bone matrices, both demineralized and non-demineralized. An implantable composition having an enhanced osteoinductivity and / or osteoconductivity is also provided. The implantable composition contains demineralized bone matrix dried at critical point of carbon dioxide. Critical point dried fibers of a demineralized bone matrix have a BET value from about 40 m2 / gm to about 100 m2 / gm, a value that is 100 times higher than corresponding vacuum dried or lyophilized DBM fibers.

A bone piece collector wherein a blade (4) coming into tight contact with the surface of a filter (2) under an appropriate pressure is provided in order to prevent lowering in the efficiency of suction work due to sampled bone chips adhering to the surface of the filter (2) in the bone piece collector provided in a suction line in order to sample a bone, i.e. a transplantation material in autologous bone transplantation, the blade (4) is rotated while being pressed against the surface of the filter (2) with a finger pressure or a motor drive force, and the sampled bone chips are moved in a certain direction so that clogging of the filter (2) is eliminated and the suction efficiency can be recovered at any time.

A surgical rongeur for cutting bone or tissue is provided. The rongeur has an elongated track member, and a generally hollow cutting slide defining an inner cavity slidably received within the track member. The distal end of the cutting slide terminates in a sharp cutting edge and an opening. The distal end of the track member terminates in a foot plate. The cutting slide is longitudinally movable relative to the track member from a first open position to a second closed position. In the first open position, there is an opening between the sharp cutting edge and the foot plate, in which opening the bone to be cut is placed. In the second closed position the sharp cutting edge contacts the foot plate, cuts the bone and pushes the bone chip through the opening into the inner cavity of the cutting slide, where multiple bone chips may be stored.

Implants for promoting bone growth and methods of using same, the implants including a perforated placental membrane sheet wrapped around an osteoconductive material composed of bone chips, bone granules, bone powders or combinations thereof, the osteoconductive material being configured for providing a scaffold upon which bone growth can occur. The placental membrane sheet acts to maintain the osteoconductive material in a cohesive, organized configuration within a site of a patient where bone growth is to be induced. The perforations in the placental membrane sheet create passageways in the exterior of the implant through which the osteoconductive material can communicate with adjacent bone surfaces which are to be fused.

The invention provides an artificial dental implant, an artificial dental implanting system and an implanting method. A screwed thread is formed in the outer surface of an artificial dental implant, wherein a neck part and a head part are respectively arranged at two ends of the implant; a spiral tapping slot is formed in the outer surface of the head part, the spiral direction of the spiral tapping slot is the same as that of the screwed thread, and the spiral lead angle of the spiral tapping slot is different from that of the screwed thread. When the artificial dental implant is implanted, the cutting force and extrusion force of the implant to the bone tissues at the implanted position are reasonable, and the bone is effectively protected from injury; the artificial dental implant can accommodate bone chips generated in the tapping process, and the bone healing time can be shortened; the artificial dental implant is effectively prevented from rotating or loosing, and the service life of artificial tooth can be prolonged.

The invention provides a vertebral body resetter, which comprises a head, a main body and a tail. The head includes a hinge structure, the hinge structure includes at least two groups of hinges, and each group of hinges includes at least four interconnected hinge pieces. During the stretching process of the vertebral body reducer, the head functions as a bone, which is spontaneously arranged to form an arc and three-dimensionally stretched 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.

A suction set structure for bone surgery, which facilitates the removal and installation of an inner barrel, includes a suction handle, a suction tip, a fixing mount engaged with the inner barrel, and a rear cap. The suction tip connects to the inner barrel installed inside the suction handle. The inner barrel has a plurality of apertures which permit blood and bone dust to pass through and enter into the connecting tube of the rear cap while the larger bone chip is collected inside the inner barrel. The fixing mount includes a ring portion, a connecting portion, and a rib flange extending from the ring portion. The rib flange will be located between the rear open end of the suction handle and the rear cap. Such that, the chip bone collected inside the inner barrel will not slip out during the removal of the inner barrel. The removed inner barrel is also capable of standing upright by the fixing mount.

Implants for promoting bone growth and methods of using same, the implants including a perforated placental membrane sheet wrapped around an osteoconductive material composed of bone chips, bone granules, bone powders or combinations thereof, the osteoconductive material being configured for providing a scaffold upon which bone growth can occur. The placental membrane sheet acts to maintain the osteoconductive material in a cohesive, organized configuration within a site of a patient where bone growth is to be induced. The perforations in the placental membrane sheet create passageways in the exterior of the implant through which the osteoconductive material can communicate with adjacent bone surfaces which are to be fused.

The invention discloses an electrostatic atomization ultrasonic assisted low-damage controllable grinding process and device for biological bone, which solves the problem of serious blockage of bone debris in the prior art, and has the beneficial effects of good cooling effect and high operation efficiency. The scheme is as follows: an electrostatic atomization ultrasonic-assisted low-damage controllable grinding device for biological bone, including a main shaft, which can be rotated; a water-catching abrasive tool for grinding biological bone, the main shaft is connected to the water-catching abrasive tool through an ultrasonic vibration mechanism , driven by the main shaft and the ultrasonic vibration mechanism, the water-catching abrasive implements longitudinal and rotational movements; the cooling and film-forming mechanism is located on one side of the water-catching abrasive and is connected to the ultrasonic generator in the ultrasonic vibration mechanism, and the bottom is set to connect with the medical The nozzle connected to the nanometer liquid storage cup can also be fed with compressed gas to carry out pneumatic-ultrasonic atomization of the medical nanofluid, and rush into the grinding area in the form of droplets for effective cooling and lubrication; the endoscope is located at The other side of the water catcher.

The present invention includes a collection device for collecting material during a surgical procedure. In one aspect, the collection device includes a collection chamber having an opening sufficient for permitting collection of the material during the surgical procedure and a scoop wall extending from the encompassing wall, the scoop wall having a distal end portion for positioning proximate a source of the material and for guiding the material to the collection chamber. In another aspect of the invention, the collection chamber has at least one aperture within the collection chamber of a size to permit flow of fluid from the chamber when the collected material is contained within the chamber. Fluid may also be poured out of the chamber without the collected material following the fluid thereby retaining the collected material within the chamber. In yet another aspect, the collection device is used for collecting bone chips that are produced during the surgical procedure and the device includes a wall extending from the collection portion of the invention that is sufficiently pliant to generally conform to the operative site from which the bone chips are being collected. Yet another aspect of the present invention includes a collection chamber that has a wall structure with a front and a back wall and an opening for collecting bone chips positioned between the front and the back wall with the front wall having a cutout positioned proximate the top portion of the front wall of a size sufficient for positioning a reamer therein such that bone chips produced by the reamer fall within the collection chamber. Another aspect of the present invention includes a smooth, concave inner surface within the chamber for facilitating the effective retrieval of bone chips.

The invention discloses a neurosurgery skull breaking, bone drilling and fragment collecting device which comprises a U-shaped support and an electric drill. The open end of the U-shaped support is fixedly connected with a soft arc-shaped supporting piece, and the closed end of the U-shaped support is connected with one end of the electric drill in a threaded mode through two hydraulic telescopic rods. A screw is arranged on one side of each hydraulic telescopic rod. One end of each screw is connected with a nut at the closed end of the U-shaped support in a threaded mode. A drill bit is arranged on one side of the electric drill and connected with a transparent tube in a penetrating and inserting mode. One end of the transparent tube is connected with one side of the U-shaped support. The other end of the transparent tube is fixedly connected with a transparent cover. One side of the transparent cover is fixedly connected with the U-shaped support through two connecting rods. The neurosurgery skull breaking, bone drilling and fragment collecting device is simple in collecting structure and small in occupied space, can collect fragments produced in the drilling process in time, reduces the debridement amount and increases the safety in the surgical process.

This document provides orthopedic and dental devices and methods for their use. For example, novel bone drills and dental drills are described. The bone and dental drills have at least some centers of mass that are offset from the drills' axis of rotation. Accordingly, the bone and dental drills may rotate and cut using a precessional pattern of motion. The design facilitates bone cutting, chip formation and hauling capacity, irrigation and bone harvesting. In some embodiments, the bone chips are collected in a removable apparatus fixed to the distal portion of the drill, and the collected bone chips can be used for bone grafting.

The invention relates to detachable and reusable hydrophobic or super-hydrophobic micro-fluidic organ chips, which are constructed by using a hydrophobic or super-hydrophobic surface with low criticalsurface tension. Specifically, a heart chip, a liver chip, a brain chip, a tumor chip, a kidney chip, an intestinal chip, a skin chip, a fat chip, a blood vessel chip, a uterus chip, an eye chip, a nose chip, a bone chip, a periodontal chip, a pancreas islet chip, a spleen chip, a placenta chip, a lung chip, a muscle chip, a throat chip, a bone marrow chip, a diabetes chip and a multi-organ chipare constructed. The organ chips constructed by the method are detachable and can be repeatedly used, so that the application cost of the micro-fluidic organ chips is greatly reduced.

The invention belongs to the technical field of medical instruments, and particularly relates to a bone setting auxiliary instrument for an orthopedic surgery. The bone setting auxiliary instrument for the orthopedic surgery comprises a base, a lock sleeve module, a sliding rod module, a drilling module, a screw mounting module, a lifting module, a cooling module and a blood drawing module, wherein a vertical rod is fixedly mounted on the base; the lock sleeve module is used for fixing an arm; the sliding rod module is mounted on the vertical rod; the drilling module is used for drilling an arm bone; the screw mounting module is used for mounting a screw on the arm bone; the lifting module is used for regulating and controlling vertical movement of the sliding rod module; the cooling module is mounted on the sliding rod module, is positioned on the left side of the drilling module and is used for cooling the drilling module; and the blood drawing module is mounted on the base, and is used for drawing blood, skeletal fragments and distilled water during drilling. By the bone setting auxiliary instrument for the orthopedic surgery, the arm bone of a patient can be fixed and drilled,the precision is high, meanwhile, a drill bit is cooled, screw implanting equipment is also provided, and functions are complete.

The invention provides minimally invasive bone taking equipment. The minimally invasive bone taking equipment is provided with a bone taking structure and a spiral conveying part and is characterizedin that the bone taking structure is used for taking down bone tissue, and the thread of the spiral conveying part is used for conveying the taken down bone tissue. The minimally invasive bone takingequipment has the advantages that the equipment only needs a tiny skin cut and a tiny bone window, cancellous bone is cut or ground into skeletal fragments or cancellous bone particles and then conveyed through threaded channels, oriented conveying of the cut or ground cancellous bone is achieved, operation convenience and quickness are achieved, hurt, caused by bone cutting surgery, to a patientis lowered greatly, sequelae are reduced, and surgery safety is increased.