36 results about "Osteotome" patented technology

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.

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.

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.

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 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 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.

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 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.

This invention relates to the field of dental medical devices and discloses a dental ultrasonic bone scalpel working tip limiting wrench, comprising a wrench locking block, a wrench tightening block, a rubber pad, a tightening screw, and a rotating assembly. When it is necessary to install or remove the working tip, the operator aligns the wrench slot with and fits it onto the wrench part of the bone scalpel working tip. At this time, the clamping slot on the rubber pad is inserted into the working tip. Due to the elasticity of the rubber pad, its clamping slot expands elastically during insertion and generates a radial contraction clamping force, thereby stably and elastically clamping the working tip inside the wrench and preventing the working tip from falling off freely. When the working tip is completely removed from the handle, due to the continuous action of the elastic clamping force of the rubber pad, the working tip is held inside the wrench and will not accidentally slip to the ground or hard surface due to gravity, thereby effectively avoiding deformation or damage to the working tip caused by falling.

A method for separating an implant from a bone, includes interfacing a tool with an implant including a flange, the flange including a proximal surface and a distal surface, the distal surface bearing on or facing the bone, the flange including an aperture defined through the flange; inserting an elongate element through the aperture from the proximal surface to the distal surface and into the bone; and partially separating a bonding interface between the implant and the bone using the elongate element.

The utility model discloses an ultrasonic osteotome handle and an ultrasonic scalpel, and relates to the technical field of medical instruments, the ultrasonic osteotome handle comprises a first shell, a second shell, an energy converter, a liquid pipe assembly and a locking piece, the energy converter is at least partially arranged in a first sub-cavity of the first shell in a penetrating mode, and a cooling channel connecting the liquid pipe assembly and the energy converter is arranged in a second sub-cavity of the second shell in a penetrating mode. A positioning shaft shoulder is arranged on the outer wall of the liquid pipe assembly, the second shell is provided with a second sub-cavity and an assembling hole communicated with the second sub-cavity, a positioning protrusion is arranged on the inner wall of the assembling hole, the liquid pipe assembly is sleeved with the second shell through the assembling hole, the second shell is connected with the first shell, and the locking piece is connected with the liquid pipe assembly. The locking piece and the positioning shaft shoulder abut against the two opposite sides of the positioning protrusion so as to limit axial movement of the second shell. According to the technical scheme provided by the utility model, the reliability of connection between the transducer and the liquid pipe assembly is improved.

The utility model relates to the technical field of medical apparatus and instruments, especially to a compound motion's ultrasonic osteotome and ultrasonic operating handle, including sword stem and the sword head connected in sword stem front end, the sword stem includes the handle section and transition section gradually from back to front, and the transition section includes amplitude section and the extension section connected in amplitude section front end, the sword stem and the sword head form the suction passage of axis extension, the suction passage can be used for connecting negative pressure equipment to enable the front end of sword head to attract medium, the extension section is evenly opened with a plurality of twist grooves on the circumference, the extension direction of twist groove is consistent with the included angle of extension section axis after the outer wall of extension section is unfolded, and its beneficial effect is that under the action of twist groove, the sword stem not only can reciprocate axially after being connected with ultrasonic transducer, but also can twist axially, and further, the cutting efficiency is greatly improved. Through setting the angle as the consistent form, the twist balance and twist amplitude can be optimized, and further, the cutting effect of the ultrasonic osteotome is further improved.

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 present application is directed to a Joint Revision Surgery Osteotome Blades and Surgical Chisel Blades 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 prothesis 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 Osteotome Blades and Surgical Chisel Blades facilitates rapid, efficient and complete removal of an existing prosthesis during joint revision surgery, and significantly increases positive medical outcomes for joint revision procedures.

A drill bit configured to simultaneously direct debris toward a drill bit tip and compress the debris into a sidewall of a hole during rotation in a single direction to strengthen the hole to receive an implant. The drill bit may comprise an osteotome, the hole may comprise an osteotomy, and the implant may be a dental implant. In an example, due to the right-hand (clockwise) rotation of the drill bit, a helical flute exhibits an apparent counterclockwise movement relative to a stationary observer, commonly referred to as apparent flute motion. The drill bit is configured to simultaneously direct the created debris longitudinally toward the tip while the first land area compresses the debris laterally outward from the drill bit into a side wall of a drill hole during rotation of the drill bit in a single direction.

The invention provides an osteotomy device and osteotomy equipment, and relates to the technical field of osteotomy devices. The osteotome includes a first surface, a second surface, and a top surface. The osteotomy device is provided with an osteotomy groove; the first surface is used for being attached to a bone interface of a to-be-cut bone; the to-be-cut bone comprises a tibia or a femur. When the first surface is used for being attached to the bone interface of the tibia, the attaching area is A; when the first surface is used for being attached to the bone interface of the femur, the attaching area is B; the radian of the first surface along the sagittal plane comprises a first radian R1 located at the upper end part; the third radian of the first surface along the horizontal plane is R3. R1 = JR1max + / -0.5, R3 = JR3max + / -0.5, and the fitting area A and the fitting area B are both larger than 50% of the area of the first surface. Wherein JR1max is the maximum value in the radians of the upper end part of the tibia along the sagittal plane; jR3max is the maximum value in the radians of the tibia along the horizontal plane. Therefore, the adaptability of the osteotomy device is improved.

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 utility model relates to the technical field of ultrasonic operating knives, especially to a sawtooth ultrasonic bone knife and an ultrasonic operating handle, which comprise a rod body and a tool bit integrally formed at the head end of the rod body, the rod body comprises, in sequence along the direction from back to front, a base section, a first transition section, an amplitude variation section and a second transition section of an integral structure, the diameter of the first transition section is greater than that of the second transition section; further comprising cutting teeth integrally formed with the tool bit, a plurality of cutting teeth are continuously distributed on at least one edge of the tool bit in the width direction to form a first cutting section; the cutting teeth are symmetrical along the line connecting the tooth tip to the middle of the tooth root, so that the cutting force in the positive direction and the reverse direction can be balanced when the cutting section vibrates axially, and the beneficial effects are that the cutting teeth are symmetrical along the line connecting the tooth tip to the middle of the tooth root, the cutting force in the positive direction and the reverse direction can be balanced when the cutting section vibrates axially, and the cutting consistency of the first cutting section is improved when the ultrasonic bone knife vibrates, and the cutting effect is improved.

The utility model provides an osteotome, which belongs to the technical field of medical instruments and comprises an osteotome structure, the osteotome structure comprises a drill rod and a drill bit, the drill rod is movably connected with the drill bit, one end of the drill rod is a handle, the other end of the drill rod is a threaded head of a conical structure, and the threaded head penetrates through an opening on one side of the drill bit. According to the bone chisel, in the process of treating a bone tumor patient, medical staff can rapidly cut bone blocks from bone substances, obtain needed samples and conduct detection, operation steps are optimized, more labor is saved, convenience is achieved, operation efficiency is improved, the size of the bone chisel can be designed according to needs, the bone chisel can be applied to large animal bone defect modeling, the structure is simple, and operation is convenient. 3D printing equipment can be used for manufacturing, and the cost is low.

The application relates to a personalized tibial plateau osteotome, belonging to the technical field of medical devices, and solves the problems of many matched devices, complicated steps and low efficiency of a traditional osteotome; the personalized tibial plateau osteotome comprises an osteotomy guiding component, a forward positioning plate, an outer platform positioning claw and an inner platform positioning claw; the osteotomy guiding component comprises an osteotomy guiding block and an osteotomy guiding groove; one side of the osteotomy guiding block is provided with a front end face and a front inner end face. According to the three-dimensional model positioning curved surface and the osteotomy plane of the tibia, the application has high matching degree with patients, is accurate in positioning, avoids the situation that the size of an existing osteotome cannot be completely matched, the position of the osteotome is easily deviated from the expectation, and surgical trauma is reduced; the multi-instrument integrated mode of a traditional tibial plateau backward osteotome is avoided, the steps of the operation are optimized, the operation time is shortened, and the harm to the patient is reduced.

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.