CN109965961B - Skeletal orthopedic external fixation frame with detachable motor - Google Patents
Skeletal orthopedic external fixation frame with detachable motor Download PDFInfo
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- CN109965961B CN109965961B CN201910296801.XA CN201910296801A CN109965961B CN 109965961 B CN109965961 B CN 109965961B CN 201910296801 A CN201910296801 A CN 201910296801A CN 109965961 B CN109965961 B CN 109965961B
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- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 74
- 239000010959 steel Substances 0.000 claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000002457 bidirectional effect Effects 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 16
- 238000004904 shortening Methods 0.000 claims description 3
- 210000000988 bone and bone Anatomy 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 208000010392 Bone Fractures Diseases 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000007356 Fracture Dislocation Diseases 0.000 description 1
- 231100000136 action limit Toxicity 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/62—Ring frames, i.e. devices extending around the bones to be positioned
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- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
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- General Health & Medical Sciences (AREA)
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- Surgical Instruments (AREA)
Abstract
The invention discloses a motor-detachable skeleton orthopedic external fixing frame, which comprises a proximal ring, a detachable connecting rod mechanism, a distal ring and stepless regulation needle threading clamps, wherein mounting holes are formed in the proximal ring and the distal ring and are uniformly distributed on the proximal ring and the distal ring at equal intervals, the proximal ring and the distal ring are connected through six detachable connecting rod mechanisms, three stepless regulation needle threading clamps are arranged on each of the proximal ring and the distal ring, and a steel needle is arranged on the stepless regulation needle threading clamps; the stepless regulation needle threading clamp can realize fine adjustment and fixation, provide needle threading guide, not only improve the accuracy and safety of clinical fracture reduction, but also lighten the operation intensity of clinicians; the design of detachable electric putter is earlier to replace connecting device through bolted connection at the both ends of sharp push rod, keeps both ends point position unchanged, demolishs electric putter again, guarantees the stability of whole device position around the replacement.
Description
Technical Field
The invention relates to the field of orthopedics correction and rehabilitation, in particular to a motor-detachable external skeletal orthopedics fixing frame.
Background
In the surgical bone surgery treatment, the fixing device is indispensable, the traditional fixing mode generally adopts the steel plate internal fixation, and the external fixing treatment mode with smaller wound is also adopted. The common external fixation device is mainly an Ilizarov external fixator and a Taylor skeleton. The Ilizarov technique uses a multi-planar fine K-wire penetrating the limb and bone tissue and connecting an annular anchor. Taylor's modified ILizarov external fixation system to connect six telescoping elongate rods obliquely to the proximal and distal rings and to be free to rotate at the connection point, one ring changing position relative to the other ring as long as the length of one of the elongate rods is adjusted. The length of the extension rod relative to the deformity parameter can be calculated by using computer program software, and the Taylor space frame can be constructed in advance by imitating any deformity to treat and correct various simple or complex fracture and deformity. The taylor skeleton is formed by:
1. the upper and lower rings may also be referred to as a proximal ring and a distal ring.
2. Six extension bars with adjustable length, and the length of each extension bar can be directly read.
3. The extension rod is connected with the ring.
4. Steel needles and needle clips connecting the fixation ring with the bone segments.
At present, a series of fixed rings with different types and sizes are used in the field of bone orthopedic rehabilitation, and a doctor selects a fixed ring with a specific type for a patient according to the basic condition of the patient in practical application. When the fixed ring is selected, the selection ground is too large, the action limit of a patient during rehabilitation can be increased, hidden danger is increased, and if the selection ground is too small, the installation difficulty of the steel needle and the extension rod can be increased, and even the fixed ring cannot be used. However, due to the high production cost, it is not practical to require hospitals to backup taylor frames of each model, and timeliness is difficult to ensure in a manner of ordering from a manufacturer through the hospital. Meanwhile, due to the actual condition of a patient, the best effect is difficult to achieve if a fixing frame with an unadjustable size is used.
The procedure is typically performed by securing a steel needle in place near the fracture site, and securing the steel needle to an Ilizarov external fixator or taylor skeleton via a needle clip to effect fixation and adjustment of the bone. The Ilizarov external fixator and the Taylor frame are fixed with needle threading clamps on a certain hole site on the upper and lower fixing rings so as to achieve the mutual fixed connection of the fracture of the human body and the upper and lower rings of the external fixing frame. But the perforation position is not symmetrical in actual operation, and the hole site of traditional anchor clamps does not necessarily have to perfectly match the needle position of wearing, and moreover, when doctor's operation is with steel needle into patient's skeleton, because the difference of technical level, the condition that can appear the steel needle beat needs to carry out the secondary and inserts, can cause secondary and even many times injury for the operation degree of difficulty is big, the threshold is high, and very little error will bring very big misery for the patient moreover.
Screw type taylor frames are currently used in the field of bone orthopedic rehabilitation, a doctor firstly installs a fixing ring on a patient during clinical operation, and the fixing ring is connected by a taylor rod after the positions of a distal ring and a proximal ring are determined. The length of the Taylor rods is changed through the distance between the screw adjusting studs and the sleeve, the telescopic lengths of the six Taylor rods are gradually adjusted, and the relative pose between the proximal ring and the distal ring can be gradually corrected, so that the reduction correction and fixation of bones are realized. However, it has been found clinically that taylor rods using screw adjustment are not efficient enough, especially when the fracture dislocation is relatively large, and the installation is too slow during surgery. Meanwhile, the screw adjusting method is not high enough in precision, and in order to ensure the precision during operation, an electric driving mode can be used for adjusting. However, the electrically driven telescopic device such as an electric push rod, a linear motor, etc. cannot well control the distance during installation, and multiple fine adjustments may be required during installation, and the effect is poor.
Disclosure of Invention
The invention aims to solve the problems that a plurality of rows of fixing rings are required to be selected according to the condition of a patient when the fixing rings are used in the existing skeletal orthopedic rehabilitation field, the size of the fixing rings is difficult to adjust, the traditional clamp cannot be perfectly matched with the threading position, so that the condition that the steel needle is deviated when a doctor drives the steel needle into the skeletal of the patient during operation is easy to occur, secondary driving is needed, secondary and even repeated damage is caused, so that the operation difficulty is high, the threshold is high, and great pain is brought to the patient, and provides a motor-detachable skeletal orthopedic external fixing frame.
The invention realizes the above purpose through the following technical scheme: the motor-detachable skeleton orthopedic external fixing frame comprises a proximal ring, a detachable connecting rod mechanism, a distal ring and a stepless regulation needle threading clamp, wherein mounting holes for connecting the detachable connecting rod mechanism and the stepless regulation needle threading clamp are formed in the proximal ring and the distal ring, the mounting holes are uniformly distributed on the proximal ring and the distal ring at equal intervals, the proximal ring and the distal ring are connected through six detachable connecting rod mechanisms, three stepless regulation needle threading clamps are mounted on each of the proximal ring and the distal ring, and steel needles are mounted on the stepless regulation needle threading clamp;
the detachable connecting rod mechanism comprises an electric push rod, a coupler, a bidirectional connecting piece, an upper fixing ring, a lower fixing ring, a fine adjustment connecting piece, a spiral connecting rod, a universal joint, a pin shaft connecting piece and a sleeve connecting piece, wherein the lower end of the spiral connecting rod is connected with a far end ring through the universal joint; the fine adjustment type connecting piece is provided with a circle of mounting holes uniformly distributed along the circumferential direction, the upper end of the spiral connecting rod is connected with the lower end of the coupler, the upper end of the coupler is connected with the lower end of the electric push rod, and the upper end of the electric push rod is connected with the lower end of the bidirectional connecting piece; the upper end of the bidirectional connecting piece is a universal joint connecting end, the universal joint connecting end of the bidirectional connecting piece is connected with the proximal ring through a universal joint, the left side and the right side of the bidirectional connecting piece are columnar bulges, threaded holes are formed in the columnar bulge end faces on the left side and the right side of the bilateral connecting piece, a push rod fixing groove is formed in the bottom of the bidirectional connecting piece, fixing holes used for fixing the upper end of the electric push rod are formed in the two side faces of the push rod fixing groove, and the upper end of the electric push rod stretches into the push rod fixing groove and is fixedly connected through bolts penetrating through the fixing holes; the upper ends of the sleeve connecting pieces and the upper ends of the pin shaft connecting pieces are fixed through bolts penetrating through the fixing holes; the total length of the sleeve connecting piece and the pin shaft connecting piece is determined by the position of the bolt penetrating through the fixing hole, and the lower end of the pin shaft connecting piece and the fine adjustment connecting piece can be connected through the bolt during positioning;
the stepless regulation needle threading clamp comprises a steel needle upper and lower stepless regulation device, a steel needle guide locking device and a fixed nut, wherein the steel needle upper and lower stepless regulation device comprises a screw rod, an upper fastening nut, a lower fastening nut and a sliding ring, the screw rod comprises a regulation end and a fixed end, the regulation end is fixed above the fixed end, threads are fully distributed on the regulation end, two penetrating straight-line grooves parallel to the axis of the screw rod are formed in the regulation end at intervals of 90 degrees, the sliding ring is sleeved on the regulation end of the screw rod, internal threads of the upper fastening nut and the lower fastening nut are connected with threads on the regulation end of the screw rod in a matched manner, and the upper end and the lower end of the sliding ring are fixed in the middle of the regulation end of the screw rod through the upper fastening nut and the lower fastening nut; the inner diameter of the sliding ring is in clearance fit with the adjusting end of the screw rod, a bolt hole and a sleeve connecting hole penetrating the whole sliding ring are formed in the sliding ring, and the bolt hole and the sleeve connecting hole are arranged at an interval of 90 degrees; the steel needle guiding locking device comprises a steel needle sleeve and a locking bolt, wherein a bulge is arranged at one end of the steel needle sleeve, the steel needle sleeve penetrates through a sleeve connecting hole on the sliding ring and a linear groove on the adjusting end of the screw rod, a locking hole is formed in the side face of the steel needle sleeve, and the locking bolt penetrates through a bolt hole on the sliding ring and the locking hole on the side face of the steel needle sleeve to tightly prop the steel needle in the steel needle sleeve; the fixed end of the screw rod is fixed on an external Ilizarov external fixator or a Taylor framework through a fixed nut.
Further, the outer side surface of the steel needle sleeve is in interference fit with a sleeve connecting hole on the sliding ring, and the outer side surface of the steel needle sleeve is in clearance fit with a linear groove on the adjusting end of the screw rod.
Further, one end of the steel needle sleeve is provided with a boss, and the outer diameter of the boss is larger than the diameter of the sleeve connecting hole on the sliding ring.
Further, the sliding ring realizes stepless adjustment of the up-down position through up-down movement of the upper fastening nut and the lower fastening nut.
Further, the width of the linear groove on the adjusting end of the screw is slightly larger than the outer diameter of the steel needle sleeve.
Further, screw threads matched with the locking bolt are arranged on the bolt hole on the sliding ring.
Further, the upper ends of the upper fixing ring and the lower fixing ring are in clearance fit with the upper end of the spiral connecting rod, the side surfaces of the upper fixing ring and the lower fixing ring are provided with threaded positioning holes, and the positioning bolts penetrate through the positioning holes to fix the upper fixing ring and the lower fixing ring on the spiral connecting rod.
Further, the spiral connecting rod is the telescopic link, and spiral connecting rod lower extreme is the spiral shell, and spiral connecting rod upper end is the spiral rod that has the nut, and in the lower extreme of spiral rod inserted the spiral shell, the extension and the shortening of spiral connecting rod can be realized to rotatory nut.
Further, the top end of the screw rod is a straight rod with threads, internal threads matched with external threads of the straight rod are arranged on the upper fixing ring and the lower fixing ring, and the positions of the upper fixing ring and the lower fixing ring on the straight rod are adjusted through the matching of the external threads and the internal threads.
Further, the lower extreme of round pin axle formula connecting piece is provided with perpendicular boss, is provided with the fixed orifices on the perpendicular boss, and the round pin axle formula connecting piece is through the bolt fixed connection who passes the fixed orifices on the perpendicular boss and the mounting hole on the fine setting connecting piece.
The invention has the beneficial effects that: 1. the stepless regulation needle threading clamp can realize fine adjustment and fixation, provide needle threading guide, not only improve the accuracy and safety of clinical fracture reduction, but also lighten the operation intensity of a clinician and greatly improve the success rate of operation.
2. The detachable connecting rod mechanism can not only adjust the rod length through the driving of the electric push rod, but also adjust the length through the screw, and can be conveniently detached after the motor is adjusted; in clinical operation, in order to realize quick connection between the proximal ring and the distal ring, manual fine adjustment can be realized through a screw pair; in order to realize rapid and accurate positioning, the electric push rod can be controlled by a motor to adjust; after the clinical adjustment is completed, the life of a patient can be greatly influenced due to the redundancy and the too large quality of six electric push rod circuits.
3. The invention provides a design of a detachable electric push rod, wherein a replacement connecting device is connected to two ends of a linear push rod through bolts, positions of two end points are kept unchanged, the electric push rod is removed, a replacement screw rod device is used for replacement, and the stability of the positions of the whole device before and after replacement is ensured.
Drawings
Fig. 1 is a schematic view showing the overall use state of a motor-detachable external skeletal orthopedic fixing frame.
Fig. 2 is a schematic view of the whole use state of the electric putter of the present invention.
Fig. 3 is a schematic view of the whole use state of the present invention without using the electric putter.
Fig. 4 is a schematic view of the overall structure of the continuously adjustable needle threading clamp of the present invention with steel needles.
Fig. 5 is a schematic view of the overall structure of the stepless adjusting needle threading clamp of the invention without steel needles.
Fig. 6 is a schematic view of the structure of the screw in the stepless adjusting needle threading clamp of the invention.
Fig. 7 is a schematic view of the structure of the slider ring in the stepless adjusting needle threading clamp of the present invention.
Fig. 8 is a schematic structural view of a steel needle sleeve in the stepless adjustment needle threading fixture of the present invention.
Fig. 9 is a schematic structural view of the detachable linkage mechanism of the present invention.
Fig. 10 is a schematic structural view of the screw type connecting rod of the present invention.
In the figure, the device comprises a 1-proximal ring, a 2-detachable link mechanism, a 3-stepless adjusting needle threading clamp, a 4-distal ring, an 18-sleeve connecting hole, a 19-steel needle, a 20-bolt hole, a 21-locking hole, a 22-bulge, a 23-linear groove, a 24-steel needle up-down stepless adjusting device, a 25-steel needle guiding locking device, a 26-fixing nut, a 27-lower fastening nut, a 28-steel needle sleeve, a 29-locking bolt, a 30-screw, a 31-adjusting end, a 32-fixing end, a 33-upper fastening nut, a 34-sliding ring, a 35-bidirectional connecting piece, a 36-electric push rod, a 37-coupling, a 38-upper fixing ring, a 39-fine adjusting connecting piece, a 40-spiral connecting rod, a 41-universal joint, a 42-lower fixing ring, a 43-pin shaft type connecting piece, a 44-sleeve connecting piece, a 45-spiral rod, a 46-spiral sleeve and a 47-spiral cap.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 3, the motor-detachable skeleton orthopedic external fixation frame comprises a proximal ring 1, a detachable connecting rod mechanism 2, a distal ring 4 and a stepless regulation needle threading clamp 3, wherein mounting holes for connecting the detachable connecting rod mechanism 2 and the stepless regulation needle threading clamp 3 are formed in the proximal ring 1 and the distal ring 4, the mounting holes are uniformly distributed on the proximal ring 1 and the distal ring 4 at equal intervals, the proximal ring 1 and the distal ring are connected through six detachable connecting rod mechanisms 2, three stepless regulation needle threading clamps 3 are mounted on each of the proximal ring 1 and the distal ring 4, and steel needles 19 are mounted on the stepless regulation needle threading clamps 3.
As shown in fig. 9 to 10, the detachable link mechanism 2 includes an electric push rod 36, a coupling 37, a bidirectional connecting piece 35, an upper fixing ring 38, a lower fixing ring 42, a fine tuning connecting piece 39, a spiral connecting rod 40, a universal joint 41, a pin shaft connecting piece 43 and a sleeve connecting piece 44, wherein the lower end of the spiral connecting rod 40 is connected with the proximal ring 1 through the universal joint 41, the upper fixing ring 38, the fine tuning connecting piece 39 and the lower fixing ring 42 are sleeved at the upper end of the spiral connecting rod 40 in sequence, and the fine tuning connecting piece 39 is positioned at the spiral connecting rod 40 through the positioning of the upper fixing ring 38 and the lower fixing ring 42; the fine adjustment type connecting piece 39 is provided with a circle of mounting holes uniformly distributed along the circumferential direction, the upper end of the spiral connecting rod 40 is connected with the lower end of the coupler 37, the upper end of the coupler 37 is connected with the lower end of the electric push rod 36, and the upper end of the electric push rod 36 is connected with the lower end of the bidirectional connecting piece 35; the upper end of the bidirectional connecting piece 35 is a universal joint 41 connecting end, the universal joint 41 connecting end of the bidirectional connecting piece 35 is connected with the far end ring 4 through the universal joint 41, the left side and the right side of the bidirectional connecting piece 35 are columnar bulges, threaded holes are formed in the end faces of the columnar bulges on the left side and the right side of the bilateral connecting piece, a push rod fixing groove is formed in the bottom of the bidirectional connecting piece 35, fixing holes used for fixing the upper end of the electric push rod 36 are formed in the two side faces of the push rod fixing groove, and the upper end of the electric push rod 36 stretches into the push rod fixing groove and is fixedly connected through bolts penetrating through the fixing holes; the two sides of each bidirectional connecting piece 35 are connected with a sleeve connecting piece 44, the upper ends of the sleeve connecting pieces 44 are fixed at columnar protruding threaded holes on the two sides of the bidirectional connecting pieces 35 through bolts, the lower ends of the sleeve connecting pieces 44 are provided with inserting grooves, the upper ends of the pin shaft connecting pieces 43 are inserted into the inserting grooves of the sleeve connecting pieces 44, the lower ends of the sleeve connecting pieces 44 and the upper ends of the pin shaft connecting pieces 43 are provided with a row of fixing holes, and the lower ends of the sleeve connecting pieces 44 and the upper ends of the pin shaft connecting pieces 43 are fixed through bolts penetrating through the fixing holes; the total length of the sleeve connection piece 44 and the pin connection piece 43 is determined by the position of the bolt passing through the fixing hole, and the lower end of the pin connection piece 43 and the fine adjustment connection piece 39 can be connected through the bolt when in positioning;
the upper fixing ring 38 and the lower fixing ring 42 are in clearance fit with the upper ends of the screw type connecting rod 40, the side surfaces of the upper fixing ring 38 and the lower fixing ring 42 are provided with threaded positioning holes, and positioning bolts penetrate through the positioning holes to fix the upper fixing ring 38 and the lower fixing ring 42 on the screw type connecting rod 40.
The screw type connecting rod 40 is a telescopic rod, the lower end of the screw type connecting rod 40 is a screw sleeve 46, the upper end of the screw type connecting rod 40 is a screw rod 45 with a screw cap, the lower end of the screw rod 45 is inserted into the screw sleeve 46, and the screw cap can be rotated to realize the extension and shortening of the screw type connecting rod 40.
The top end of the screw rod 45 is a straight rod with threads, the upper fixing ring 38 and the lower fixing ring 42 are provided with internal threads matched with external threads of the straight rod, and the upper fixing ring 38 and the lower fixing ring 42 realize the adjustment of the positions of the upper fixing ring 38 and the lower fixing ring 42 on the straight rod through the matching of the external threads and the internal threads.
The lower end of the pin shaft type connecting piece 43 is provided with a vertical boss, a fixing hole is formed in the vertical boss, and the pin shaft type connecting piece 43 is fixedly connected through a bolt penetrating through the fixing hole in the vertical boss and the mounting hole in the fine adjustment type connecting piece 39.
As shown in fig. 4 to 8, the stepless regulation needle threading clamp 3 comprises a steel needle upper and lower stepless regulation device 24, a steel needle guiding locking device 25 and a fixed nut 26, the steel needle upper and lower stepless regulation device 24 comprises a screw 30, an upper fastening nut 33, a lower fastening nut 27 and a sliding ring 34, the screw 30 comprises a regulation end 31 and a fixed end 32, the regulation end 31 is fixed above the fixed end 32, threads are fully distributed on the regulation end 31, two penetrating straight grooves 23 parallel to the axis of the screw 30 are formed on the regulation end 31 at intervals of 90 degrees, the sliding ring 34 is sleeved on the regulation end 31 of the screw 30, internal threads of the upper fastening nut 33 and the lower fastening nut 27 are connected with threads on the regulation end 31 of the screw 30 in a matched manner, and the upper end and the lower end of the sliding ring 34 are fixed in the middle of the regulation end 31 of the screw 30 through the upper fastening nut 33 and the lower fastening nut 27; the inner diameter of the sliding ring 34 is in clearance fit with the adjusting end 31 of the screw 30, the sliding ring 34 is provided with a bolt hole 20 and a sleeve connecting hole 18 penetrating through the whole sliding ring 34, and the bolt hole 20 and the sleeve connecting hole are arranged at an interval of 90 degrees; the steel needle guiding locking device 25 comprises a steel needle sleeve 28 and a locking bolt 29, wherein a bulge 22 is arranged at one end of the steel needle sleeve 28, the steel needle sleeve 28 passes through a sleeve connecting hole 18 on a sliding ring 34 and a linear groove 23 on an adjusting end 31 of a screw 30, a locking hole 21 is arranged on the side surface of the steel needle sleeve 28, the locking bolt 29 passes through a bolt hole 20 on the sliding ring 34 and the locking hole 21 on the side surface of the steel needle sleeve 28, and the steel needle 19 is propped in the steel needle sleeve 28; the fixed end 32 of the screw 30 is secured to an external Ilizarov external fixator or taylor skeleton by a securing nut 26.
The outer side of the steel needle sleeve 28 is in interference fit with the sleeve connecting hole 18 on the sliding ring 34, and the outer side of the steel needle sleeve 28 is in clearance fit with a linear groove 23 on the adjusting end 31 of the screw 30. The width of the linear groove 23 at the adjustment end 31 of the screw 30 is slightly greater than the outer diameter of the steel needle sleeve 28.
One end of the steel needle sleeve 28 is provided with a boss, and the outer diameter of the boss is larger than the diameter of the sleeve connecting hole 18 on the sliding ring 34.
The slide ring 34 is continuously adjusted in the up-down position by the up-down movement of the upper and lower fastening nuts 33 and 27. The bolt holes 20 on the sliding ring 34 are provided with threads matched with the locking bolts 29.
After the doctor determines the installation position of the steel needle 19, the installation position of the clamp is determined through calculation and analysis, the angle is adjusted, the clamp is installed on the combined type fixed ring through the fixed nut 26, the upper and lower positions of the steel needle 19 are adjusted through the steel needle upper and lower stepless adjusting device 24, the steel needle 19 is screwed and fixed through the upper fastening nut 33 and the lower fastening nut 27 after the position is determined, the steel needle 19 penetrates into the proper position of fracture of a patient through the steel needle sleeve 28 to be installed, the steel needle sleeve 28 provides the guiding function of the installation of the steel needle, the front and rear positions are adjusted through the steel needle guiding locking device 25, and the locking bolt 29 is screwed and fixed after the position is determined.
The above embodiments are only preferred embodiments of the present invention, and are not limiting to the technical solutions of the present invention, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present invention.
Claims (8)
1. A removable skeleton of motor is orthopedic external fixation frame, its characterized in that: the device comprises a proximal ring (1), a detachable connecting rod mechanism (2), a distal ring (4) and a stepless regulation needle threading clamp (3), wherein mounting holes for connecting the detachable connecting rod mechanism (2) and the stepless regulation needle threading clamp (3) are formed in the proximal ring (1) and the distal ring (4), the mounting holes are uniformly distributed on the proximal ring (1) and the distal ring (4) at equal intervals, the proximal ring (1) and the distal ring are connected through six detachable connecting rod mechanisms (2), three stepless regulation needle threading clamps (3) are mounted on each proximal ring (1) and each distal ring (4), and steel needles (19) are mounted on the stepless regulation needle threading clamps (3);
the detachable connecting rod mechanism (2) comprises an electric push rod (36), a coupler (37), a two-way connecting piece (35), an upper fixing ring (38), a lower fixing ring (42), a fine-tuning connecting piece (39), a spiral connecting rod (40), a universal joint (41), a pin shaft type connecting piece (43) and a sleeve connecting piece (44), wherein the lower end of the spiral connecting rod (40) is connected with a near end ring (1) through the universal joint (41), the upper fixing ring (38), the fine-tuning connecting piece (39) and the lower fixing ring (42) are sequentially sleeved at the upper end of the spiral connecting rod (40), and the fine-tuning connecting piece (39) is positioned on the spiral connecting rod (40) through the upper fixing ring (38) and the lower fixing ring (42); the fine-adjustment type connecting piece (39) is provided with a circle of mounting holes uniformly distributed along the circumferential direction, the upper end of the spiral connecting rod (40) is connected with the lower end of the coupler (37), the upper end of the coupler (37) is connected with the lower end of the electric push rod (36), and the upper end of the electric push rod (36) is connected with the lower end of the bidirectional connecting piece (35); the upper end of the bidirectional connecting piece (35) is a universal joint (41) connecting end, the universal joint (41) connecting end of the bidirectional connecting piece (35) is connected with the far end ring (4) through the universal joint (41), the left side and the right side of the bidirectional connecting piece (35) are columnar bulges, threaded holes are formed in the columnar bulge end faces on the left side and the right side of the bidirectional connecting piece (35), a push rod fixing groove is formed in the bottom of the bidirectional connecting piece (35), fixing holes for fixing the upper end of the electric push rod (36) are formed in the two side faces of the push rod fixing groove, and the upper end of the electric push rod (36) stretches into the push rod fixing groove and is fixedly connected through bolts penetrating through the fixing holes; the two sides of each bidirectional connecting piece (35) are connected with a sleeve connecting piece (44), the upper ends of the sleeve connecting pieces (44) are fixed at columnar protruding threaded holes on the two sides of the bidirectional connecting pieces (35) through bolts, the lower ends of the sleeve connecting pieces (44) are provided with inserting grooves, the upper ends of the pin shaft connecting pieces (43) are inserted into the inserting grooves of the sleeve connecting pieces (44), the lower ends of the sleeve connecting pieces (44) and the upper ends of the pin shaft connecting pieces (43) are provided with a row of fixing holes, and the lower ends of the sleeve connecting pieces (44) and the upper ends of the pin shaft connecting pieces (43) are fixed through bolts penetrating through the fixing holes; the total length of the sleeve connecting piece (44) and the pin shaft connecting piece (43) is determined by the position of the bolt penetrating through the fixing hole, and the lower end of the pin shaft connecting piece (43) and the fine adjustment connecting piece (39) can be connected through the bolt when the pin shaft connecting piece is positioned;
the stepless regulation needle threading clamp (3) comprises a steel needle upper and lower stepless regulation device (24), a steel needle guide locking device (25) and a fixed nut (26), the steel needle upper and lower stepless regulation device (24) comprises a screw rod (30), an upper fastening nut (33), a lower fastening nut (27) and a sliding ring (34), the screw rod (30) comprises a regulation end (31) and a fixed end (32), the regulation end (31) is fixed above the fixed end (32), threads are fully distributed on the regulation end (31), two penetrating straight grooves (23) parallel to the axial lead of the screw rod (30) are formed in the regulation end (31) at intervals of 90 degrees, the sliding ring (34) is sleeved on the regulation end (31) of the screw rod (30), the internal threads of the upper fastening nut (33) and the lower fastening nut (27) are in matched connection with the threads on the regulation end (31) of the screw rod (30), and the upper end and the lower end of the sliding ring (34) are fixed at the middle part (31) of the screw rod (30) through the upper fastening nut (33) and the lower fastening nut (27); the inner diameter of the sliding ring (34) is in clearance fit with the adjusting end (31) of the screw rod (30), the sliding ring (34) is provided with a bolt hole (20) and a sleeve connecting hole (18) penetrating through the whole sliding ring (34), and the bolt hole (20) and the sleeve connecting hole (18) are arranged at an interval of 90 degrees; the steel needle guiding locking device (25) comprises a steel needle sleeve (28) and a locking bolt (29), a boss (22) is arranged at one end of the steel needle sleeve (28), the steel needle sleeve (28) penetrates through a sleeve connecting hole (18) on the sliding ring (34) and a linear groove (23) on an adjusting end (31) of the screw rod (30), a locking hole (21) is formed in the side face of the steel needle sleeve (28), the locking bolt (29) penetrates through a bolt hole (20) on the sliding ring (34) and the locking hole (21) in the side face of the steel needle sleeve (28), and the steel needle (19) is tightly propped in the steel needle sleeve (28); the fixed end (32) of the screw (30) is fixed on an external Ilizarov external fixator or a Taylor framework through a fixed nut (26);
the screw type connecting rod (40) is a telescopic rod, the lower end of the screw type connecting rod (40) is a screw sleeve (46), the upper end of the screw type connecting rod (40) is a screw rod (45) with a screw cap, the lower end of the screw rod (45) is inserted into the screw sleeve (46), and the screw cap can be rotated to realize the extension and shortening of the screw type connecting rod (40);
the lower extreme of round pin axle connecting piece (43) is provided with perpendicular boss, is provided with the fixed orifices on the perpendicular boss, and round pin axle connecting piece (43) are through the bolt fixed connection of the fixed orifices on passing perpendicular boss and the mounting hole on fine setting connecting piece (39).
2. A motor-removable skeletal orthopedic external fixation frame as defined in claim 1, wherein: the outer side surface of the steel needle sleeve (28) is in interference fit with a sleeve connecting hole (18) on the sliding ring (34), and the outer side surface of the steel needle sleeve (28) is in clearance fit with a linear groove (23) on the adjusting end (31) of the screw rod (30).
3. A motor-removable skeletal orthopedic external fixation frame as defined in claim 1, wherein: one end of the steel needle sleeve (28) is provided with a boss, and the outer diameter of the boss is larger than the diameter of the sleeve connecting hole on the sliding ring (34).
4. A motor-removable skeletal orthopedic external fixation frame as defined in claim 1, wherein: the sliding ring (34) realizes stepless adjustment of the up-down position through up-down movement of the upper fastening nut (33) and the lower fastening nut (27).
5. A motor-removable skeletal orthopedic external fixation frame as defined in claim 1, wherein: the width of the straight line groove on the adjusting end (31) of the screw is larger than the outer diameter of the steel needle sleeve.
6. A motor-removable skeletal orthopedic external fixation frame as defined in claim 1, wherein: screw threads matched with the locking bolt (29) are arranged on the bolt hole on the sliding ring (34).
7. A motor-removable skeletal orthopedic external fixation frame as defined in claim 1, wherein: the upper fixing ring (38) and the lower fixing ring (42) are in clearance fit with the upper end of the spiral connecting rod (40), threaded positioning holes are formed in the side faces of the upper fixing ring (38) and the lower fixing ring (42), and the positioning bolts penetrate through the positioning holes to fix the upper fixing ring (38) and the lower fixing ring (42) on the spiral connecting rod (40).
8. A motor-removable skeletal orthopedic external fixation frame as defined in claim 1, wherein: the top end of the screw rod (45) is a straight rod with threads, internal threads matched with the external threads of the straight rod are arranged on the upper fixing ring (38) and the lower fixing ring (42), and the positions of the upper fixing ring (38) and the lower fixing ring (42) on the straight rod are adjusted through the matching of the external threads and the internal threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910296801.XA CN109965961B (en) | 2019-04-14 | 2019-04-14 | Skeletal orthopedic external fixation frame with detachable motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910296801.XA CN109965961B (en) | 2019-04-14 | 2019-04-14 | Skeletal orthopedic external fixation frame with detachable motor |
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| CN109965961A CN109965961A (en) | 2019-07-05 |
| CN109965961B true CN109965961B (en) | 2023-11-28 |
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| CN117243676B (en) * | 2023-11-16 | 2024-01-12 | 山西谷枢医疗科技有限公司 | Bidirectional independent adjusting connecting rod mechanism for annular external fixing frame |
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| CN1115630A (en) * | 1995-05-03 | 1996-01-31 | 汤福刚 | Automatic tubular-bone extending and reduction fixing system |
| CN104814779A (en) * | 2015-05-07 | 2015-08-05 | 浙江工业大学 | External fixation device needle threading fixture capable of being adjusted in multiple directions and at multiple angles |
| CN106264690A (en) * | 2016-08-24 | 2017-01-04 | 义乌敦仁智能科技有限公司 | A kind of electronic Taylor space external fixed support for bone |
| CN108852492A (en) * | 2018-05-17 | 2018-11-23 | 项硕 | A kind of efficient Orthopedic fixation device |
| CN209864002U (en) * | 2019-04-14 | 2019-12-31 | 浙江工业大学 | Bone orthopedic external fixing frame with detachable motor |
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2019
- 2019-04-14 CN CN201910296801.XA patent/CN109965961B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115630A (en) * | 1995-05-03 | 1996-01-31 | 汤福刚 | Automatic tubular-bone extending and reduction fixing system |
| CN104814779A (en) * | 2015-05-07 | 2015-08-05 | 浙江工业大学 | External fixation device needle threading fixture capable of being adjusted in multiple directions and at multiple angles |
| CN106264690A (en) * | 2016-08-24 | 2017-01-04 | 义乌敦仁智能科技有限公司 | A kind of electronic Taylor space external fixed support for bone |
| CN108852492A (en) * | 2018-05-17 | 2018-11-23 | 项硕 | A kind of efficient Orthopedic fixation device |
| CN209864002U (en) * | 2019-04-14 | 2019-12-31 | 浙江工业大学 | Bone orthopedic external fixing frame with detachable motor |
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Effective date of registration: 20240619 Address after: 214174 block B, 1f, building 7, No. 1699, Huishan Avenue, Huishan Economic Development Zone, Wuxi, Jiangsu Patentee after: Wuxi Beida Medical Technology Co.,Ltd. Country or region after: China Address before: The city Zhaohui six districts Chao Wang Road Hangzhou City, Zhejiang province 310014 18 Patentee before: JIANG University OF TECHNOLOGY Country or region before: China |