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47 results about "Tibia osteotomy" patented technology

Tibia osteotomy positioning device

The invention discloses a tibia osteotomy positioning device which is used for artificial total knee prosthesis replacement operation. The tibia osteotomy positioning device comprises an osteotomy plate and a positioning rod, the osteotomy plate is fixed at the top end of the positioning rod, and contact screws which are used for being nailed into tibia ridge front edge bone cortex for positioning are arranged on the positioning rod. The device has the advantages that the structure is simple, the positioning is accurate, the operation and the usage are convenient, during knee prosthesis replacement, inside and outside turning, rotation and hypsokinesis can be excellently controlled to perform a marrow outside positioning tibia osteotomy in tibia osteotomy operation, and the defects that tibia osteotomy positioning devices in prior art are inaccurate in alignment, complicated in operation, and unstable caused by human factors and the like are overcome. The two contact screws are nailed into the tibia ridge for fixture, so that the upper end of a positioning device is not required to be in contact with a tibial platform, and the osteotomy plane is determined mainly according to the tibia ridge.
Owner:GUANGDONG STABLE MEDICAL TECH CO LTD

Tibia osteotomy positioning device for knee joint replacement surgery

The invention discloses a tibia osteotomy positioning device for a knee joint replacement surgery. The tibia osteotomy positioning device comprises an osteotomy unit, a backward inclination angle adjuster and a first toe and second toe aligner, wherein an arc-shaped contact surface is arranged at the inner side of the osteotomy unit; an osteotomy groove penetrating through the osteotomy unit is arranged at the outer side of the osteotomy unit; a plurality of first positioning holes and a plurality of second positioning holes are respectively arranged at the upper end and the lower end of the osteotomy groove; the number of the first positioning holes is larger than the number of the second positioning holes; and fixators used for fixing the osteotomy unit to the outer surface of the tibiaare detachably arranged in the first positioning holes and the second positioning holes. When the fixators penetrates through the first positioning holes and the second positioning holes to fix the osteotomy unit on the tibia, a majority of the fixators are nailed into the bone of the spinous process of the tibia located above the osteotomy groove, while the bone of the spinous process of the tibia located above the osteotomy groove is cut off in a surgery, so the injury of the fixators to the tibia can be greatly reduced; postoperative pain is reduced; and the postoperative recovery effect ofa patient is improved.
Owner:邬黎平

Proximal tibia osteotomy device

The invention relates to a proximal tibia osteotomy device. The device includes a connecting rod with a pointer mounted on a condyle-holding device connecting rod, a tibia osteotomy guide plate mounted on the connecting rod with the pointer, and two osteotomy thickness restrictors mounted on the tibia osteotomy guide plate, the tibia osteotomy guide plate comprises a tibial fixing plate matching with the curvature of the tibia and a connecting plate fixed on the tibial fixing plate, the connecting plate and the pointer end of the connecting rod with the pointer are connected by a pressure screw so as to enable the connecting plate to rotate relative to the connecting rod with the pointer, the tibia fixing plate is provided with an osteotomy saw blade guiding groove, positioning circular holes and nail holes, and the two positioning circular holes are formed in the tibia fixing plate with central symmetry along the center line of the long side of the osteotomy saw blade guiding groove.The device is convenient to adjust, and can determine and limit the thickness of the osteotomy in the vertical direction when the tibia osteotomy guide plate is varus. The osteotomy angle is the physiological varus and valgus angle of the patient, and the device realizes the dynamic alignment of the knee arthroplasty, and facilitates rapid recovery of the patient in order to improve the satisfaction for the knee joint activity of the patient after the replacement.
Owner:XIANGYA HOSPITAL CENT SOUTH UNIV

Adjustable tibia osteotomy guider

ActiveCN112932606AEasy to adjustAccurate and flexible lateral movementBone drill guidesUnicompartmental knee arthroplastyGonial angle
The invention relates to a tibia osteotomy guider, which belongs to the technical field of orthopedic medical instruments and comprises an osteotomy guide part, a driving component for driving the osteotomy guide part to move and a retroversion adjusting component for adjusting a tibia retroversion angle. The osteotomy guiding piece comprises an arc-shaped plate and a fixing plate, and the arc-shaped plate and the fixing plate are perpendicularly arranged and fixedly connected. The arc-shaped plate is provided with a transverse osteotomy guide groove extending in the length direction of the arc-shaped plate, and the transverse osteotomy guide groove penetrates through the two sides of the arc-shaped plate. A longitudinal osteotomy guide groove is formed in the fixing plate and penetrates through the two sides of the fixing plate. The tibia osteotomy guider has the effects of quickly adjusting the osteotomy position and accurately adjusting the retroverted angle during knee joint unicompartmental knee arthroplasty and facilitating a doctor to quickly and accurately cut off a tibia lesion part, the success rate of an operation is increased, the pain of a patient is reduced, and the satisfaction degree of the patient is guaranteed.
Owner:BEIJING CHUNLIZHENGDA MEDICAL INSTR

Tibia guide plate for total knee arthroplasty and use method of tibia guide plate

ActiveCN112842455AVerify and determine the amount of osteotomyImprove securityBone drill guidesPhysical medicine and rehabilitationKnee Joint
The invention provides a tibia guide plate for total knee arthroplasty and a use method thereof. The tibia guide plate for total knee arthroplasty comprises a tibia guide plate body, a tibia osteotomy groove is formed in the first side of the tibia guide plate body, the tibia osteotomy groove penetrates through one end of the tibia guide plate body, and a sickle blade is inserted into the tibia osteotomy groove; a fitting groove is formed in the second side of the tibia guide plate body; and a force line rod fixing plate parallel to the tibia osteotomy groove is arranged at one end of the tibia guide plate body, and a force line rod inserting hole capable of allowing a force line rod to be inserted is formed in the end, away from the tibia guide plate body, of the force line rod fixing plate. By arranging the fitting groove, alignment fitting with the front inner side of the tibia is achieved, accurate positioning assembly of the tibia guide plate and the tibia is guaranteed, the tibia osteotomy groove is aligned with the tibia osteotomy face, the sickle blade is inserted into the tibia osteotomy groove, the tibia osteotomy amount is accurately verified, and accurate positioning of osteotomy of an operation is guaranteed; and the safety and success rate of a sugery are improved, and the tibia guide plate is simple in structure, convenient to operate and accurate in positioning.
Owner:LONGWOOD VALLEY MEDICAL TECH CO LTD +2

Unicondylar osteotomy guide plate and positioning method thereof

The invention relates to a unicondylar osteotomy guide plate. The unicondylar osteotomy guide plate is designed to match a cutting tool to achieve unicondylar quantitative osteotomy of a knee joint. The unicondylar osteotomy guide plate comprises a thighbone drilling guide plate and a tibia osteotomy guide plate. The thighbone drilling guide plate is provided with a femoral condyle far-end positioning surface, an intercondylar fossa positioning surface and a femoral condyle preartis positioning surface which are designed in a customized mode through CT scanning reconstruction and attached to the femoral condyle far-end, the intercondylar fossa and the femoral condyle preartis respectively. The tibia osteotomy guide plate is provided with a tibial plateau positioning surface which is designed in a customized mode through CT scanning reconstruction and attached to the front side face of a tibial plateau, a longitudinal osteotomy guide groove which is suitable for limiting the cutting tool in a longitudinal osteotomy plane longitudinally extending along the tibia, and a horizontal osteotomy limiting groove which is suitable for limiting the cutting tool in a horizontal osteotomy planewhich transversely extends along the tibia. The invention further relates to a positioning method of the unicondylar osteotomy guide plate.
Owner:JIASITE HUAJIAN MEDICAL EQUIP (TIANJIN) CO LTD

Tibia osteotomy extramedullary and intramedullary multifunctional positioning system

The invention provides a tibia osteotomy extramedullary and intramedullary multifunctional positioning system. The tibia osteotomy extramedullary and intramedullary multifunctional positioning systemcomprises a main body mechanism, wherein an ankle holding device is arranged at the bottom of the main body mechanism, an ankle joint can be held by the ankle holding device, an extramedullary positioning mechanism capable of moving and rotating in the axial direction of the main body mechanism is arranged on the main body mechanism, and the extramedullary positioning mechanism can be positioned on osteotomy extramedullary parts. An intramedullary positioning mechanism capable of moving in the radial direction and rotating in the axial direction of the main body mechanism is arranged on the main body mechanism and can be positioned in osteotomy intramedullary parts. The intramedullary positioning mechanism and the extramedullary positioning mechanism are integrated on the main body mechanism to form a set of positioning system, during tibia osteotomy positioning, intramedullary measurement and extramedullary measurement can be realized only by utilizing the positioning system disclosedby the embodiment, other tools do not need to be replaced, the operation is simple, the surgery time is shortened, the surgery precision and the surgery completion effect are improved, and the positioning is accurate.
Owner:BEIJING LIDAKANG TECH

Gap balance measurer

The invention discloses a gap balance measurer, which comprises a femur spreading plate and a tibia spreading plate, wherein a femur osteotomy reference plate is arranged at one end of the femur spreading plate; a tibia osteotomy reference plate is arranged at one end of the tibia spreading plate; an indication surface plate is arranged at the end, which is far away from the femur osteotomy reference plate, of the femur spreading plate; a gap between the femur spreading plate and the tibia spreading plate can be adjusted through a gap adjusting mechanism; a locking mechanism is arranged on one side, which is far away from the femur osteotomy reference plate, of the tibia spreading plate; a balance angle indicating mechanism is arranged between the femur osteotomy reference plate and the indication surface plate; a gap indicating mechanism is arranged on one side of the indication surface plate; and a tension indication mechanism is also arranged on one side of the indication surface plate. According to the gap balance measurer disclosed by the invention, whether the balance of soft tissues at the knee joint is met in an osteotomy process or not can be verified in a plurality of steps in a knee joint operation process, the balance state of the soft tissues is quantified, and a doctor is assisted in finding and placing the most accurate knee joint prosthesis.
Owner:天衍医疗器材有限公司

Adjustable tibia probe

The invention discloses an adjustable tibia probe. The adjustable tibia probe comprises a vertical rod, a rotating rod is arranged at the upper end of the vertical rod, a sleeve is arranged outside the rotating rod, a probe is arranged in the middle of the vertical rod, a guide rod is arranged at the lower end of the vertical rod, a height adjusting mechanism is arranged in the middle of the rotating rod, a prompting mechanism is arranged at the lower end of the rotating rod, and a connecting mechanism is arranged on one side of the guide rod; the height adjusting mechanism can accurately adjust the height of the probe, the prompting mechanism makes a sound every time when the probe is adjusted by 1 mm, a doctor can conveniently and accurately judge the adjusting height of the probe, the measuring precision is improved, the connecting mechanism can be very conveniently connected with a tibia osteotomy module, and the operation time is shortened.
Owner:天衍医疗器材有限公司

Construction method of high tibial osteotomy guide plate model

The invention relates to the field of medical instruments, and particularly relates to a construction method of a high tibial osteotomy guide plate model. The construction method of the high tibial osteotomy guide plate model comprises the steps that a three-dimensional tibia model is obtained; the upper and lower boundary interfaces of the guide plate are obtained; a rotating reference shaft is obtained; the inner and outer side boundaries of the defined guide plate area are formed with the rotating reference shaft acting as the axis; the defined guide plate area is formed; the point set of the defined guide plate area is obtained; a guide plate initial surface is obtained through fitting; a guide plate body model is constructed; multiple transverse osteotomy guide holes are constructed;and multiple ascending osteotomy guide holes are constructed. According to the high tibial osteotomy guide plate and the design method thereof, the accuracy of tibia osteotomy can be effectively enhanced, and the effects of reducing the operation time, reducing the radiation dose to the doctor and the patient and ensuring accurate implementation of preoperative planning of osteotomy can be realized.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE

Tibia osteotomy positioning system and osteotomy plate fixing platform and ankle mortise working platform

The invention discloses a tibia osteotomy positioning system and an ankle mortise working platform and an osteotomy plate fixing platform. The osteotomy plate fixing platform comprises an osteotomy working platform, an osteotomy plate and a laser device, wherein an adjustable angle is formed between the osteotomy plate and the osteotomy working platform, the laser device is arranged on the lower surface of the osteotomy working platform, and the laser device is a laser transmitter or a laser rangefinder. Laser alignment principle and a beam splitter prism are adopted to determine a reclining angle between the working planes of the osteotomy plate and an ankle holding device. The tibia osteotomy positioning system and the osteotomy plate fixing platform and the ankle mortise working platform improve alignment accuracy, simplify operation, improve operation efficiency, and reduce burden of doctors and patients.
Owner:BEIJING NATON TECH GRP CO LTD +1

Tibia osteotomy cutting apparatus

InactiveCN111685848AReduce dependenceLimit the depth of cutSurgeryBone tibiaSurgery
The invention discloses tibia osteotomy cutting apparatus. The apparatus comprises a first knife rest, a blocking base and a stop pin, wherein the first knife rest is mounted outside the body of a patient, and is provided with a knife groove for guiding a knife to cut a tibia from the side surface of the tibia along the guiding direction of the knife groove, the blocking base is installed at one end of the first knife rest and located on the front face of the tibia, the blocking base is provided with guide holes in a penetrating manner, the axis of each guide hole, and an advancing path, guided by the knife groove, of the knife are located on the same plane, and the stop pin penetrates into the tibia from the front surface of the tibia along one guide hole of the blocking base and is transversely arranged on the cutting path of the knife.
Owner:PAONAN BIOTECH

Tibia adjustment base

PendingCN107233121AAchieve fine-tuningPrecise amount of osteotomyDiagnosticsSurgerySlant angleEngineering
The invention provides a tibia adjustment base. The tibia adjustment base comprises a mounting base, triggers and an adjustment wheel, the mounting base comprises a stand column and a base which are connected up and down, two triggers are symmetrically arranged at the left side and the right side of the stand column, a lateral U-shaped opening is formed in the middle of the base, the adjustment wheel is rotatably connected into the U-shaped opening, the adjustment wheel can move outward in the depth direction of the U-shaped opening, the base is provided with a positioning rod hole which runs through the upper side wall and the lower side wall of the U-shaped opening, the adjustment wheel is provided with a threaded hole corresponding to the positioning rod hole, the hole diameter of the threaded hole is identical to that of the positioning rod hole, and the threaded hole is matched with a thread on a tibia near end extramedullary positioning rod. In the tibia adjustment base, coarse tuning is conducted on the tibia osteotomy position by sliding the positions of the adjusting base up and down, the adjusting wheel is adopted to be matched with the thread on the tibia near end extramedullary positioning rod, fine tuning of the tibia osteotomy position is achieved, and the osteotomy amount is precisely determined; the osteotomy surfaces with different inclinations are provided through different slant angles of the stand column of the mounting base for choices of different surgery modes.
Owner:CHANGZHOU ORTHMED MEDICAL INSTR

Integrated primary ankle joint tibial plateau prosthesis

The invention provides an integrated primary ankle joint tibial plateau prosthesis, which comprises a tibia support body, wherein a clamping groove matched with a tibia liner is formed in the tibia support body; a hollow cylinder used for being implanted into a tibia osteotomy position and fixing the tibia osteotomy position; a connecting piece the two ends of which are connected with the tibia support body and the hollow cylinder respectively, so that the connecting piece and the hollow cylinder are implanted into the tibia osteotomy; wherein the hollow cylinder is arranged along the length direction of the tibia support body; the tibia support body, the connecting piece and the hollow cylinder are integrally formed. The prosthesis has the advantages that the operation of mounting the tibia handle in an operation is reduced, the operation steps are simplified, the operation time is shortened, and the operation experience is improved.
Owner:BEIJING CHUNLIZHENGDA MEDICAL INSTR

Fixing and supporting piece for tibia osteotomy

The invention discloses a fixing and supporting piece for tibia osteotomy, the fixing and supporting piece for tibia osteotomy can fill a gap appearing at a tibia cut-off position, specifically, a fixing steel plate is fixed to a tibia firstly, then a first supporting block is embedded into the gap appearing at the tibia cut-off position, and a second supporting block is embedded into the gap appearing at the tibia cut-off position; then, a second wedge-shaped block can be driven to slide by rotating a first rotating rod, then a first wedge-shaped block is pushed to ascend and descend, an ejector rod is pushed, then a second supporting plate is driven to move in the direction away from a first supporting block, and therefore the purpose of expanding the thickness of the first supporting block is achieved, that is, the first supporting block can support a larger gap; therefore, the osteotomy support is suitable for osteotomy gaps of different sizes and plays a better role in supporting the tibia. By filling the gap at the tibia cut-off position, the overall strength of the tibia is guaranteed, and complications such as fracture of the osteotomy hinge, postoperative fixing angle loss and non-healing at the cut-off position are avoided.
Owner:XIANGYA HOSPITAL CENT SOUTH UNIV

Planning method and device for tibia osteotomy intelligent navigation system

The invention provides a planning method and device for an intelligent navigation system for tibia osteotomy. The method comprises the following steps: performing image segmentation and three-dimensional image reconstruction on a medical image of a lower limb skeleton of a human body to obtain a three-dimensional image containing a tibia and a fibula; key point recognition is conducted on the three-dimensional image containing the tibia and the fibula, and parameter information of the tibia osteotomy part is determined; generating an osteotomy guide plate model based on the parameter information, and acquiring data of the osteotomy guide plate model; and manufacturing the tibia high-position osteotomy guide plate through 3D printing based on the acquired data of the osteotomy guide plate model. The design time of the osteotomy guide plate can be greatly shortened, the waiting time of a patient before an operation is shortened, the design difficulty is reduced, the pain of the patient can be relieved as soon as possible, the design accuracy of the osteotomy guide plate can be improved, the operation time is shortened, the operation risk is reduced, and accurate correction of the force line of the lower limb of the patient is achieved.
Owner:LONGWOOD VALLEY MEDICAL TECH CO LTD +1

Proximal tibia auxiliary osteotomy device

The invention relates to the technical field of medical instruments, in particular to a proximal tibia auxiliary osteotomy device. The device comprises a fine adjustment assembly mounted at one end, away from an ankle holding device, of a vertical line rod, the fine adjustment assembly comprises a mounting column fixedly connected to one end of the vertical line rod, an adjusting button rotationally arranged on the mounting column and a square fine adjustment rod arranged on the mounting column, the mounting column and the adjusting button are both coaxially arranged with the vertical line rod, a mounting groove is formed in the mounting column, the adjusting button is rotationally arranged in the mounting groove, a limiting groove which communicates with the mounting groove is formed in one end, away from the vertical line rod, of the mounting column, the fine adjustment rod is matched in the limiting groove in a sliding mode, a screw fixedly connected with one end of the fine adjustment rod is arranged inside the mounting column, and the screw penetrates through a rotary knob and is in threaded fit with the rotary knob. The device has the effects that the tibia osteotomy amount is improved by adjusting the fine adjustment assembly and a tibia fixing plate, and the problem that a retroversion angle of an osteotomy module cannot be adjusted is solved.
Owner:BEIJING LIDAKANG TECH

Tibia osteotomy positioning device for knee joint replacement

The invention discloses a tibia osteotomy positioning device for knee joint replacement. The positioning device comprises an L-shaped handle and an osteotomy guide plate; the L-shaped handle comprisesa head part and a handheld part; the head of the L-shaped handle comprises a first connecting part and a first laser; the osteotomy guide plate comprises a second connecting part and an osteotomy positioning part; the first connecting part is matched with the second connecting part; the handheld part is provided with a second laser; and a laser beam emitted by the first laser is perpendicular toa laser beam emitted by the second laser. The tibia osteotomy positioning device is good in positioning effect, easy to operate, low in cost and easy to popularize and use on a large scale.
Owner:GENERAL HOSPITAL OF PLA

Stable fixing bone plate for high tibia osteotomy

The invention discloses a stable type fixing bone plate for high tibia osteotomy (HTO), which comprises a longitudinal plate part and a transverse plate part transversely arranged from the top end of the longitudinal plate part, a plurality of fixing holes are formed in the longitudinal plate part and the transverse plate part in a penetrating manner, a protruding column extends from the rear side of at least one fixing hole of the transverse plate part, and the protruding column is used for fixing the longitudinal plate part and the transverse plate part. And the fixing hole penetrates through the protruding column. When the fixing bone plate is applied, the protruding column is inserted into the head of the tibia of a patient after osteotomy, the screw can penetrate through the protruding column and then is locked into the tibia, the rear section of the screw is screwed and locked in the fixing hole of the transverse plate part, and shearing force generated between the tibia of the patient and the fixing bone plate cannot directly act on the screw. Therefore, the screw is prevented from being broken due to shearing force.
Owner:PAONAN BIOTECH

Tibial osteotomy positioning system, osteotomy plate fixation platform and ankle point working platform

The invention discloses a tibia osteotomy positioning system and an ankle mortise working platform and an osteotomy plate fixing platform. The osteotomy plate fixing platform comprises an osteotomy working platform, an osteotomy plate and a laser device, wherein an adjustable angle is formed between the osteotomy plate and the osteotomy working platform, the laser device is arranged on the lower surface of the osteotomy working platform, and the laser device is a laser transmitter or a laser rangefinder. Laser alignment principle and a beam splitter prism are adopted to determine a reclining angle between the working planes of the osteotomy plate and an ankle holding device. The tibia osteotomy positioning system and the osteotomy plate fixing platform and the ankle mortise working platform improve alignment accuracy, simplify operation, improve operation efficiency, and reduce burden of doctors and patients.
Owner:BEIJING NATON TECH GRP CO LTD +1

Tibia osteotomy tool system

The invention discloses a tibia osteotomy tool system. The tibia osteotomy tool system comprises a wing-shaped osteotome, wherein an osteotomy guider is arranged at the lower end of the wing-shaped osteotome, and a tibia platform test mold is arranged at the lower end of the osteotomy guider; the wing-shaped osteotome comprises a guide rod, wing-shaped osteotome bodies, a lock catch and a spring,wherein the wing-shaped osteotome bodies are located in the middle of the guide rod; and the lock catch is located at the upper part of the guide rod, the spring is located at the position, corresponding to the lock catch, in the guide rod, two cutting edges are arranged on one side, away from the guide rod, of each wing-shaped osteotome body, and a groove is formed between every two cutting edges. After the wing-shaped osteotome completes osteotomy through the osteotomy guider, the osteotomy guider can be integrally brought out, and operation steps are simplified; the number of the cutting edges is increased, besides, each groove is additionally formed between every two cutting edges, and bone fractures during osteotomy can be avoided under the condition that sharpness of the cutting edges is guaranteed; and in addition, arranged fixing nails can fix the osteotomy guider and the tibia platform test mold to the tibia bone surface together, and instrument displacement during osteotomy is prevented.
Owner:天衍医疗器材有限公司

Knee joint gap measuring method and device, terminal equipment and readable storage medium

The invention discloses a knee joint gap measuring method and device, terminal equipment and a readable storage medium, and the method comprises the steps: determining a real-time target pose relationship between a to-be-measured femur osteotomy plane and a tibia osteotomy plane according to a pose relationship among a visual sensor, a femur measuring plate, a femur tracker, a tibia measuring plate and a tibia tracker; attaching the femur measuring plate to the to-be-measured femur osteotomy plane, and attaching the tibia measuring plate to the tibia osteotomy plane; calculating a real-time normal included angle between the normal of the to-be-measured thighbone osteotomy plane and the normal of the tibia osteotomy plane according to the real-time target pose relationship; and when the real-time normal included angle is equal to zero, calculating the distance between the tibia osteotomy plane and the to-be-measured thighbone osteotomy plane according to the current target pose relationship. The knee joint gap measuring process is very simple, errors are not prone to being generated, and the measuring precision is higher.
Owner:LANCET ROBOTICS CO LTD

Guide plate for bone transport of tibia osteotomy

The invention discloses a guide plate for bone transport of tibia osteotomy. The guide plate comprises a fixing plate and an expansion plate, wherein the expansion plate is detachably connected with the fixing plate, the expansion plate is provided with expanded drill holes, the fixing plate is a horizontal long strip plate, drill holes are uniformly distributed in the fixing plate, a plurality ofthreaded through holes running through the fixing plate from the upper surface to the lower surface are formed in the fixing plate, the threaded through holes are formed along the axis of the long axis of the fixing plate, the threaded through holes are internally in threaded connection with handles, each handle comprises a hand-held part and a connecting part, the connecting parts are in threaded connection with the threaded through holes, the hand-held parts are exposed outside the threaded through holes, the handles are hollow sleeves, the sleeves are internally provided with internal threads, and the sleeves are internally in threaded connection with fixing screws. The tibia surfaces fit the fixing plate, the tibia is fixed through the fixing screws, holes are drilled in the tibia insequence from the drill holes by using a drill bit, then the drill holes are communicated by using an osteotome, and a square bone can be taken down, thereby ensuring the uniformity and accuracy of drilling.
Owner:盛珺

Device for unicondylar arthroplasty femoral condyle positioning and tibia osteotomy accuracy judgment

The invention discloses a device for unicompartmental knee arthroplasty femoral condyle positioning and tibia osteotomy accuracy judgment, which is characterized by comprising a kirschner wire, a traction cone, a traction triangular piece and a femoral condyle test mold positioner anti-rotation fixing column, and the traction triangular piece and the traction cone are arranged on the silk thread from top to bottom. The device has the following advantages that the structural design is reasonable, the surgical operation can be more accurate, a satisfactory imaging result can be obtained in post-operation radiography, post-operation complications are reduced, and the device has good popularization prospects and medical value.
Owner:张鹏

Tibia osteotomy system and osteotomy quantity adjusting device thereof

PendingCN114469243AContinuous and precise fine-tuning of effectsDiagnosticsBone drill guidesBone tibiaEngineering
According to the tibia osteotomy system and the osteotomy amount adjusting device thereof, the osteotomy amount adjusting device comprises a first rod piece, a second rod piece and an adjusting piece, the first rod piece is provided with a first guide groove, the second rod piece is connected with the first rod piece, the second rod piece is connected with a first shaft, the first shaft is inserted into the first guide groove, and the adjusting piece is connected with a second shaft; the adjusting piece is rotationally connected with the second rod piece through a first shaft, a second guide groove is formed in the adjusting piece, the first rod piece is provided with a second shaft, and when the adjusting piece rotates around the first shaft relative to the first rod piece, the second shaft moves along the second guide groove and gets close to or away from the first shaft; the relative positions of the first rod piece and the second rod piece in the length direction of the first rod piece are adjusted. According to the tibia osteotomy system and the osteotomy amount adjusting device thereof, the second guide groove in the adjusting part is used for restraining the second shaft, so that the second shaft can precisely move relative to the first shaft when moving along the second guide groove, and the osteotomy position can be precisely and finely adjusted.
Owner:SUZHOU MICROPORT ORTHORECON CO LTD

Navigation device for total knee arthroplasty of knee fusion

The invention provides a navigation device for total knee arthroplasty of knee fusion. The navigation device comprises an osteotomy guide plate; a thighbone osteotomy slot, a wedge-shaped osteotomy slot and a tibia osteotomy slot which penetrate through the guide plate are formed in the osteotomy guide plate sequentially from top to bottom; the osteotomy guide plate is provided with a verification hole and a verification face; the verification surface is used for extramedullary observation and verification of an osteotomy surface; a metal nail is put in the verification holes and is used for verifying the osteotomy surface in a perspective view field; fastening via holes are formed in each of the upper end and the lower end of the osteotomy guide plate; and the fastening via holes are used for screws penetrate through to be fixed to a joint. According to the navigation device, whether the guide plate is in a horizontal state or not is observed through the verification surface, thereby judging whether the guide plate is consistent with an actual desired osteotomy direction or not; the Kirschner wire is put in the verification hole, and whether the Kirschner wire is consistent with a designed osteotomy direction or not can be observed in an operation, thereby implementing a design conception of intramedullary design and extramedullary verification; the guide plate can be accurately placed, and navigation is provided for osteotomy operation, thus guaranteeing the osteotomy accuracy.
Owner:THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV

An adjustable bone plate for restoring the line of force of lower limbs after tibial osteotomy

ActiveCN108420519BLock firmlyTo achieve the purpose of fine-tuning the opening degreeBone platesPhysical medicine and rehabilitationOrthopedic department
The invention relates to an adjusting bone plate for restoring limb alignment after osteotomy of tibia and belongs to the technical field of orthopedic medical instruments. The adjusting bone plate isused for adjusting the limb alignment after osteotomy of the tibia. The technical scheme is that the bone plate is a rectangular steel plate, and the two ends of the bone plate are provided with fixing screw holes respectively, the middle of the bone plate is provided with clamping groove holes for placing distracted pieces, the two distracted pieces are placed in the clamping groove holes respectively, the length direction of the two distracted pieces is perpendicular to the plane of the bone plate, the lower portions of the two distracted pieces are located below the plate surface of the bone plate, the cross section of a distracting rotating shaft is oval or is in a symmetrical unequal-diameter shape, the lower portion of the distracting rotating shaft is placed between the opposite plate surfaces of the two distracted pieces, and the upper end of the distracting rotating shaft is provided with a hexagonal nut. The adjusting bone plate can precisely adjust the distracting degree ofthe osteotomy part after the osteotomy, so that the tibia joint plane and the limb alignment recover to an ideal position, the osteotomy part can be fixed firmly, the osteotomy part stability is maintained, and the operation quality and success rate are enhanced.
Owner:THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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