65 results about "Osteotome" patented technology

An apparatus can include an osteotome blade including an elongate main body extending from a proximal end to a distal end, the elongate main body having a curved cross-section and defining a helical path along at least a portion of a longitudinal axis of the elongate main body, wherein the distal end includes a distal cutting edge.

An implantation kit including a rotational osteotome and an implant is disclosed. The rotational osteotome includes a plurality of steps of different diametrical sizes, a tip, and at least one flute; and every step includes an annular bottom bevel to provide a cutting edge and recessed section. The implant includes a body having a cylindrical head section and a conical section provided with an external thread and a plurality of spiral flutes. The conical section has a downward tapered profile correspondingly aligned with the recessed sections. The cylindrical head section has a straight cylindrical profile matching that of the step having the largest diametrical size. With the above arrangements, an implant hole on a bone can be formed in only one drilling with one single osteotome for fixedly holding the implant therein. Therefore, the time needed for dental and orthopedic surgeries is largely shortened while better osseointegration can be achieved.

The utility model relates to an ultrasonic osteotome positioning structure and an ultrasonic osteotome device, and relates to the technical field of dental medical instruments. When the first connecting piece and the second connecting piece in the ultrasonic osteotome positioning structure are connected in an inserted mode, the first contact portion of the first matching face and the second matching face is a small-area portion, the area of the first matching face and the second matching face which are in contact subsequently can be increased along with the increase of the inserting depth, friction force is increased, and the service life of the ultrasonic osteotome is prolonged. The first connecting piece and the second connecting piece are connected more tightly, and the connecting precision is improved. Due to the fact that the area of the initial contact surface is small, in the initial inserting stage, even if the inserting direction deviates, adjustment can be conducted easily, the gap generated when the first matching surface and the second matching surface are completely matched is further reduced, and the accuracy and stability of connection between the first connecting piece and the second connecting piece are improved. In the operation, the risk that the reference piece shakes relative to the blade point part is reduced, and the accuracy of the determined position of the blade point part is further improved.

The present application is directed a Joint Revision Surgery System and Method which includes a surgical osteotome blade guide block which has a plurality of rearward blade guide slots, a central cavity and a plurality of forward guide slots having a two-way adjustable L-shaped guide plate. The surgical osteotome blade guide block central cavity houses a stem trunnion securing and is secured to the prosthesis to be extracted. The guide blade block is secured to the trunnion of the prosthesis to be extracted using a stem trunnion securing member housed within the guide block. Straight, curved, flexible and rigid and compound curved osteotome blades are guided by the blade guide slots to cut the implant free from the bone. The Joint Revision Surgery System and Method facilitates rapid, efficient and complete removal of an existing prosthesis during joint revision surgery, and significantly increases positive medical outcomes for joint revision procedures.

The ultrasonic osteotome for the joint surgery is characterized in that the ultrasonic osteotome comprises a piezoelectric transducer (1), an amplitude-change pole (2) and a tool bit (3), the amplitude-change pole (2) is arranged at the front end of the piezoelectric transducer (1), and the tool bit (3) is arranged at the front end of the amplitude-change pole (2); the tool bit (3) comprises a large-end cylinder (31), a transition R angle (32), a small-end cylinder (33) and a cutting part (34); the width of the cutting part (34) is 4-5 mm, the thickness of the cutting part (34) is 2-3 mm, an oval receding groove (341) is formed in the middle of the cutting part, sawteeth (342) are arranged on the two side walls in the axis direction, and the number of the sawteeth on one side is 20-25. The utility model has the advantages of simple design, low processing cost, large amplitude, high safety and the like, and is very suitable for ultrasonic osteotome for joint surgery.

Disclosed are a method for determining a position of an ultrasonic osteotome (10), a system, a computer-readable storage medium, and a computer program product. The method includes: obtaining an acoustic impedance signal of the ultrasonic osteotome (10); and determining a current position of the ultrasonic osteotome (10) in bone tissue to be cut based on the acoustic impedance signal. In this way, an operator (50) can conveniently obtain the position of the ultrasonic osteotome (10) in real time, which can effectively prevent a movement path of the ultrasonic osteotome (10) from deviating from a target path, thereby reducing damage to soft tissue during surgery.

An apparatus is described herein comprising an osteotome and a sheath, wherein the proximal end of the osteotome comprises a handle, wherein the distal end of the osteotome comprises a blade, wherein an intermediate stem joins the handle and the blade, the proximal end of the sheath comprising an attachment component, wherein a surface of the distal end of the sheath comprises a hollowed region, wherein the hollowed region comprises a stem, the proximal end of the stem comprising a securing component for receiving and securing the attachment component of the sheath, the blade comprising a blade curvature, wherein a surface of the blade curvature comprises a recessed opening, the recessed opening, and the stem, the attachment component, and the securing component configured to cooperate in securing the sheath to the blade.

This invention provides a coronoid process osteotomy knife for the ulna, comprising a first knife blade. The first knife blade includes a first blade body and a first handle. A first intersection point is formed at the connection between the first blade body and the first handle. The right side of the first blade body and the right side of the first handle intersect at the first intersection point, forming an angle α1 of 190-220°. In use, the first knife blade utilizes the right side of the first blade body to avoid obstruction by the protruding portion in the middle of the coronoid fossa, reaching the osteophyte on the coronoid process of the ulna. During the resection, the inner curved surface of the first blade body is used to remove the osteophyte into a smooth arc surface consistent with the arcuate contour of the coronoid process, leaving no step. This invention's coronoid process osteotomy knife for the ulna, by utilizing the right side of the first blade body to avoid obstruction by the wall of the coronoid fossa, reaches the "blind zone"; then, by using the inner curved surface of the first blade body to conform to the original arcuate contour of the coronoid process, it thoroughly removes the osteophyte, achieving complete cleaning of the inner and outer sides of the coronoid process, solving the problem of traditional knife blades being unable to completely remove osteophytes due to angle limitations.

1. Name of the product in this design: Bone Carving Knife. 2. Purpose of this design: This design is used for human bone repair in surgical procedures. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

In view of various problems when a treatment that embeds an implant body or a treatment that embeds an embedded body such as an autologous tooth is performed, an osteotome for a dental treatment corresponding thereto or the like is provided. To implement this, an osteotome according to the present disclosure is an osteotome 60 used as an instrument which is embedded from a surface layer of a treatment area in a jaw region of a patient into a deep portion to apply an impact in expanding or compressing a bone so as to displace a position of a mucosa behind the treatment area and includes a body portion corresponding to a main body portion of the osteotome and an end portion 63 formed at a distal end of the body portion to displace the position of the mucosa. A diameter of the end portion 63 has a size appropriate for transplant of an autogenous tooth.

This application relates to the field of medical device technology, specifically to an extramedullary positioning distal femoral osteotomy device for knee replacement, comprising an osteotomy plate, an axial indicator, a rotating component, and a reference plate. The osteotomy plate has a reference end face and an abutment end face, with a cutting suture and pin holes provided on the reference end face. The axial indicator is rotatably mounted on the reference end face; the rotating component is rotatably mounted on the reference end face; the reference plate is slidably mounted on the rotating component, and the reference plate can slide on the rotating component in a direction away from or close to the rotation axis of the rotating component, with the reference plate perpendicular to the reference end face. In this application, the axial indicator determines the direction of the patient's femoral axis, ensuring that the movement of the osteotomy plate is consistent with the direction of the femoral axis, thereby improving the accuracy of the cutting position during surgery. The rotating component and the reference plate allow the surgeon to adjust according to the preoperatively determined angle of the prosthesis articular surface, enabling precise matching of the cutting suture angle with the prosthesis articular surface, further improving the precision of the surgery.

The present application relates to a kind of femur osteotomes, the femur osteotome includes: clamping assembly and guide plate assembly, the clamping assembly includes connected clamp head and clamping arm component, the clamping arm component has for clamping femur clamping channel, the size of the clamping channel is adjustable, the guide plate assembly includes osteotomy guide plate and first connecting component, the osteotomy guide plate is detachably connected with the clamp head by the first connecting component, osteotomy groove is provided on the osteotomy guide plate, and the groove wall of the osteotomy groove is orthogonal to the axial direction of the clamping channel.The femur osteotome of the present application is higher in accuracy, easy to assemble, and simple to operate.

An osteotome with replaceable blades. The osteotome includes a replaceable blade portion and a handle portion. The blade portion is detachably affixed to the handle portion. Replaceable blade portions are affixed to the reusable handle portion. The blade portions have a tool edge portion and blade shaft portion. The blade shaft portion extends between the base and a proximal end having an externally threaded portion. The handle portion has a hand grip portion and a handle shaft portion. A threaded coupler is provided. The proximal end of the blade shaft portion and the distal end of the handle shaft portion include complementary interlocking end pieces, which prevent rotation therebetween. An interior shaft and strike plate in the handle portion assure steel-to-steel contact from the strike plate to the sharp distal end.

The invention discloses an oral implant bone splitting chisel and a use method, the chisel comprises a holding part, a buffer area and a working head part which are distributed in a T-shaped structure; the holding part is a rod body and is provided with an anti-slip structure on the surface, and the axis is vertically and fixedly connected with the axis of the buffer area; the working head comprises a guide face and a guide blade, the splitting blade is of a wedge-shaped structure, a cutting edge is arc-shaped, arc-shaped transition faces are arranged on the two sides of the cutting edge, fillet transition is arranged at the tip end, the thickness of the cutting edge is gradually increased from the tip end to the root portion, and the holding portion and the buffer area are of an integral or detachable structure. The holding stability is improved through the T-shaped structure, bone tissue friction and damage are reduced through the design of the arc-shaped cutting edges and the round corners, the detachable working head can meet the requirements of different operation areas (a straight neck is used for an anterior tooth area, and a bent neck is used for a posterior tooth area), and multi-direction precise bone splitting is achieved; the use method is adaptive to different alveolar bone forms and bone cortex thicknesses, the operation steps are standard and controllable, the cleavage range is effectively controlled, the operation risk is reduced, the safety and convenience of the implant surgery are improved, and the device is suitable for various oral implant bone cleavage surgeries.

The utility model discloses a medical power osteotome which comprises an electric saw rod outer sleeve (1), one end of the electric saw rod outer sleeve (1) is connected with one end of an electric saw rod assembly, the other end of the electric saw rod assembly is provided with a knife protective sleeve (2), a driving shaft (3) is rotationally installed in the electric saw rod assembly, one end of the driving shaft (3) is provided with a cam connecting assembly, and the other end of the driving shaft (3) is provided with a knife protective sleeve (2). A connecting shaft (4) is installed in the electric saw rod outer sleeve (1), a cylindrical cam (5) is arranged on the connecting shaft (4), the cam connecting assembly is connected with the cylindrical cam (5), and a cutter (6) is installed at the other end of the driving shaft (3). According to the utility model, the use cost can be effectively reduced, and the problem of heat generation during working can be solved.

The utility model discloses a medical tool bit and an ultrasonic osteotome, and relates to the technical field of medical instruments, and the medical tool bit comprises a tool bit main body; the connecting part is arranged at one end of the tool bit body, external threads are arranged on the periphery of the connecting part, the external threads are used for being connected with a driving handle, and a rounded corner structure is arranged at the tooth bottom of the external threads. According to the technical scheme, the possibility that the tool bit is damaged is reduced.

The application discloses a medical rotary ultrasonic osteotome, which comprises an ultrasonic vibrator, the ultrasonic vibrator is arranged in a shell, the top of the ultrasonic vibrator is arranged outside the shell and is provided with a grinding needle, a non-contact energy transmission device and a rotary driving device are sequentially arranged in the shell and at the end of the ultrasonic vibrator, the non-contact energy transmission device comprises a main side coil, a main side magnetic core, a secondary side coil and a secondary side magnetic core, the main side magnetic core is provided with a main wire slot, the secondary side magnetic core is provided with a secondary wire slot, the external connecting wire of the main side coil is connected with an external ultrasonic power supply through the main wire slot and a wire port of the rear shell, and the external connecting wire of the secondary side coil is connected with the ultrasonic vibrator through the secondary wire slot and a first wire hole; the rotary driving device comprises a front gear, a rear gear, a connecting main rod and a quick connector. The application aims to provide the rotary ultrasonic osteotome which can improve the bone cutting operation efficiency, reduce the mechanical damage of bone tissue, and combine the advantages of ultrasonic and rotary cutting.

The utility model relates to the technical field of medical instruments, in particular to a bent osteotome system for knee joint revision, which comprises a first bent osteotome, a second bent osteotome and a quick connector, the first bent osteotome comprises a first bent osteotome connecting part and a first bent osteotome inserting hook, the first bent osteotome connecting part is provided with a first bent osteotome quick connecting hole, and the second bent osteotome connecting part is provided with a second bent osteotome inserting hook. The quick connector is fixedly connected with the first bent osteotome in the first bent osteotome quick connecting hole, the first bent osteotome inserting hook is matched with the ML direction of the knee joint platform, the second bent osteotome comprises a second bent osteotome connecting part and a second bent osteotome inserting hook, the second bent osteotome connecting part is provided with a second bent osteotome quick connecting hole, and the second bent osteotome inserting hook is matched with the second bent osteotome quick connecting hole. The quick connector is fixedly connected with the second bent osteotome in the second bent osteotome quick connecting hole, and the second bent osteotome is inserted into the hook to be matched with the AP direction of the knee joint plateau. The system provided by the utility model can realize multi-angle operation, can realize quick connection, and is relatively simple in structure.

The utility model discloses an osteotome output assembly and a dental system, and relates to the technical field of medical equipment, the dental system comprises a control module, a motor driving module and an ultrasonic driving module, the control module is used for triggering the motor driving module or the ultrasonic driving module to perform driving operation under an external instruction; the osteotome output assembly comprises an electric handle, an ultrasonic handle, an electric dental handpiece and an ultrasonic workpiece; the input end of the electric handle is electrically connected with the motor driving module through a motor cable; the input end of the ultrasonic handle is electrically connected with the ultrasonic driving module through an ultrasonic cable; the input end of the electric dental handpiece is in transmission connection with the output end of the electric handle; the ultrasonic workpiece is in transmission connection with the output end of the ultrasonic handle. According to the scheme, the electric osteotome and the ultrasonic osteotome are integrated in one set of system, so that on one hand, the integration of the osteotome power system is improved, and on the other hand, an operator can flexibly select different types of osteotome to operate under different use scenes.

The application discloses an intelligent ultrasonic bone knife system based on multi-modal cooperation, which comprises a low-frequency cutting module, a high-frequency pulse early warning module, a motion sensing unit, a nonlinear identification module and a coupling control module. The high-frequency pulse early warning module adopts no less than two micro piezoelectric elements, which are embedded in the blind hole in the end of the amplitude transformer knife head. The directional near-field detection towards the advancing direction of the knife head is realized through the emission phase delay or the reception phase difference. The system emits 1-3 MHz pulses during the intermittent period of low-frequency cutting, and combines the motion vector, the boundary of the soft tissue in front and the nonlinear acoustic fingerprint result to dynamically adjust the detection gap, the identification threshold and the low-frequency output power, so that the power is reduced or the output is cut off before the knife head contacts the non-bone soft tissue.

The utility model relates to the technical field of bone cutting apparatus, and disclose a tibial plateau bone cutting apparatus, including bone shovel, the top fixed connection of bone shovel has the sleeve rod, the outer surface sliding connection of sleeve rod has the sleeve, the top thread connection of sleeve rod has the connecting rod, the top fixed connection of connecting rod has the top block, the top surface fixed connection of top block has the arc plate, the outer surface of connecting rod is sleeved with spring, the top fixed connection of sleeve has the top plate, the top surface of top plate is connected with the casing through screw, the utility model discloses through the eccentric wheel of frequency conversion motor drive, drive bone shovel vibration cutting osteophyte, compared with traditional bone rongeur manual operation, can quickly remove the redundant osteophyte on tibial plateau, effectively shorten the operation time, reduce patient anaesthesia risk and medical staff work intensity. Moreover, the arc blade of bone shovel bottom end cooperates vibration cutting, can get the regular shape inside tibial plateau, reduces the situation of the influence of subsequent operation because of the osteophyte removal shape is not good.

The invention discloses a navigation osteotome for medullary core decompression and a using method of the navigation osteotome, and relates to the technical field of medical instruments, the navigation osteotome for medullary core decompression comprises a rotating part fixedly connected with one end of an osteotome head, and the rotating part is further connected with a tracer; one end of the handle connecting piece is connected with the handle, the other end of the handle connecting piece is sleeved with the rotating piece, the rotating piece can rotate along the axis of the handle connecting piece, a limiting mechanism is arranged on the handle connecting piece in the circumferential direction, and the limiting mechanism is matched with the rotating piece; according to the navigation osteotome, the position of the osteotome head in the femoral head can be determined through the tracer, no matter what angle the osteotome head rotates, the tracer can receive a monitoring signal by adjusting the angle relation between the rotating piece and the handle connecting piece, the position of the osteotome head can be rapidly determined, a doctor can conveniently know the removal condition, and the operation efficiency is improved. The operation efficiency is improved.

1. The name of the design product: bone chisel. 2. The use of the design product: for orthopedic surgical instruments. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

Systems and methods for implantation of an intervertebral disc prosthesis include the prosthesis, a cartridge, and an instrument. Prior to implantation of the prosthesis, the cartridge receives and engages with the prosthesis to form an assembly. In addition, the instrument receives the assembly within an opening in an outer housing and engages the cartridge with a coupler of a locking shaft. Following implantation of the cartridge, actuation of a release driver causes an expansion bit of the release driver to engage release tabs on the cartridge to cause the cartridge to disengage from the prosthesis. The systems and methods optionally include a trial implant and / or an osteotome for trialing prior to implantation of the prosthesis.

The invention relates to an ultrasonic osteotome and an ultrasonic osteotome system. The ultrasonic osteotome comprises a knife rod and a knife head, and the knife rod is used for being detachably connected with a transducer and transmitting ultrasonic vibration generated by the transducer to the knife head; the cutter head comprises a connecting section and a cutting section, the connecting section is used for connecting the cutting section with the cutter bar, the cutting section is used for cutting bone tissue, at least part of the cross section, perpendicular to the axis of the cutter bar, of the cutting section is in a C shape, and the far end, in the axis direction of the cutter bar, of the cutting section is provided with a far end surface making contact with the bone tissue and a plurality of first cutting teeth; the cross section of the cutting section of the tool bit is designed to be C-shaped, namely, the tool bit is of a similar shovel-shaped structure, and the cutting teeth are arranged on the surface, making contact with tissue, of the front end of the tool bit, so that the tool bit at least can achieve cutting in the axis direction of the tool bar and in the axis direction of the tool bar; and the cut bone chips can be better removed from the cutting grooves, so that the tool bit has various bone cutting functions and bone tissue removing functions at the same time.

The utility model provides an osteotome and osteotome suite for tibial prosthesis revision, and the osteotome comprises a first operating rod, a handle and an osteotome head. The first operating rod is provided with a near end and a far end; the bent tool bit is connected to the far end of the first operating rod, the bent tool bit is in a smooth bent shape, the end, in the length direction, of the bent tool bit is connected with the far end of the first operating rod, and first cutting edges are arranged on the end portion of the other end of the bent tool bit and the edge of the inner concave side of the side portion; the handle is movably arranged on the first operating rod in a sleeving mode. According to the bone bending knife disclosed by the embodiment of the utility model, the bending knife head is arranged to be in the smooth bending shape, so that the bone bending knife can better adapt to the shape of the peripheral surface of the side part of the tibial prosthesis, and an operator can conveniently separate the side part of the tibial prosthesis. The first cutting edge located at the front end of the bent tool bit can play a role in vertical guide separation, the movable handle can prevent the handle from entering an incision, and accidental injury to cartilage tissue and sclerotin in the operation process is avoided.

The ultrasonic osteotome comprises a knife rod, the knife rod is connected with a blade, a cooling channel is formed in the knife rod, and the cooling channel is used for injecting cooling liquid into the blade; wherein a liquid inlet of the cooling channel penetrates through the end, away from the blade, of the cutter bar, an included angle theta is formed between the liquid outlet direction of the cooling channel and the length direction of the blade, and the included angle theta is an acute angle.

The utility model relates to medical instrument technical field, specifically disclose a kind of special depth-limiting bone chisel of endoscope channel, comprising: hand-held part;Knocking part;And bone chisel main part;Bone chisel main part one end is bone chisel head, and the other end is set in hand-held part, and the outside of the connection with hand-held part is equipped with the adjusting part of cylindrical shape, the adjusting part outside is sleeved with depth-limiting sleeve;Depth-limiting sleeve, depth-limiting sleeve is connected with the adjusting part outer thread by internal thread, and depth-limiting sleeve is close to bone chisel head end and is equipped with annular groove, and bone chisel head is embedded in annular groove by annular groove sleeve connection depth-limiting shell;Depth-limiting shell, the inside of depth-limiting shell is equipped with the groove that can pass through bone chisel main part, and it is equipped with the outer expansion baffle near bone chisel head, and it is equipped with the convex in annular groove away from bone chisel head end. The special depth-limiting bone chisel of endoscope channel is through the characteristics such as adjustable chisel depth, prevent the protection mechanism of chisel and go deep, easy to operate and durable stable structure, significantly improve the deficiency of traditional depth-limiting bone chisel.

The utility model relates to the technical field of elbow bone cutter, concretely is a combined elbow bone cutter, including the casing, the casing inside swing is provided with the shift control mechanism, the shift control mechanism includes fixed disc, threaded column, movable block, thread groove, clamping plate, fixed block and movable slot. The utility model user can rotate the rotary handle, makes the fixed disc rotate under the traction of movable column, because clamping plate is active and is inserted in the inside of fixed block, so movable block can freely move on threaded column, leads clamping plate to contract inwards, when clamping plate one end is in abutment in the limit groove bottom, can carry out the clamping fixed of support rod, if needing to replace the bone cutter head, the user fixes the fixed part with one hand, and the other hand rotates the bone cutter head and makes it separate from the fixed groove, can complete the combination installation and replacement of bone cutter, the device has the clamping mechanism of rotary type, and the user only needs to complete the clamping fixed of support rod through simple rotation, saves time and labour.

The utility model discloses a kind of split type ultrasonic osteotome suitable for surgical power equipment, it is related to medical equipment technical field;To solve the problem of resource waste and cumbersome operation caused by the incompatibility of ultrasonic host and ultrasonic osteotome power equipment in prior art, the following technical scheme is proposed: the utility model includes tool bit, tool bar, ultrasonic handle, connecting cable, adapter, locking piece, power handle, ultrasonic handle converts high-frequency electric energy into mechanical vibration, and mechanical vibration is transmitted to tool bit, tool bit is arranged at the end of tool bar, the end of tool bar away from tool bit is arranged on ultrasonic handle, one end of ultrasonic handle is connected to adapter by connecting cable, adapter is detachably connected on power handle, adapter and power handle are connected by locking piece, the utility model improves the energy transmission structure and adaptation interface of ultrasonic osteotome, so that it can share the same host with existing surgical power equipment.