CN110269671B - Digital adjustable bone orthopedic external fixation frame with detachable motor - Google Patents
Digital adjustable bone orthopedic external fixation frame with detachable motor Download PDFInfo
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- CN110269671B CN110269671B CN201910296787.3A CN201910296787A CN110269671B CN 110269671 B CN110269671 B CN 110269671B CN 201910296787 A CN201910296787 A CN 201910296787A CN 110269671 B CN110269671 B CN 110269671B
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- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 20
- 210000000988 bone and bone Anatomy 0.000 title claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 54
- 239000010959 steel Substances 0.000 claims description 54
- 230000000149 penetrating effect Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 8
- 238000004904 shortening Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 description 6
- 238000001356 surgical procedure Methods 0.000 description 6
- 208000010392 Bone Fractures Diseases 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
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- 208000004221 Multiple Trauma Diseases 0.000 description 2
- 208000023637 Multiple injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 208000007356 Fracture Dislocation Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 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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Abstract
The invention discloses a digital adjustable external skeletal orthopedic fixing frame with a detachable motor, which comprises a combined fixing ring, detachable link mechanisms and a stepless adjustable needle threading clamp, wherein the combined fixing ring is provided with a pair of combined fixing rings, the combined fixing rings are connected through six detachable link mechanisms, and the stepless adjustable needle threading clamp is fixed on the combined fixing ring; 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 type connecting piece, a spiral connecting rod, a universal joint, a pin shaft type connecting piece and a sleeve connecting piece; the size of the fixing ring can be adjusted by adjusting the position of the nut and removing the connecting piece, so that the applicability and the compatibility of the device are improved; the design of the detachable electric push rod is provided, the replacing connecting device is connected to the two ends of the linear push rod through the bolts firstly, the positions of the two end points are kept unchanged, then the electric push rod is detached, and the replacing screw rod device is used for replacing.
Description
Technical Field
The invention relates to the field of orthopedic correction and rehabilitation, in particular to a digital adjustable skeletal orthopedic external fixing frame with a detachable motor.
Background
When the operation of surgery skeleton was treated, indispensable during fixing device, traditional fixed mode generally adopted the steel sheet internal fixation, had also appeared now the less external fixation's of wound treatment mode. The commonly used external fixation devices are mainly Ilizarov external fixation devices and Taylor skeletons. The Ilizarov technique uses a multi-planar thin k-wire that penetrates the limb and bone tissue and connects to an annular fixator. The taylor improves upon the ILizarov external fixation system by obliquely attaching six telescoping extension rods to the proximal and distal rings and allowing free rotation at the attachment points, so that once the length of one of the extension rods is adjusted, one ring changes position relative to the other. The length of the extension rod relative to the deformation parameters can be calculated by using computer program software, and Taylor space frames can be constructed in advance by simulating any deformation to treat and correct various simple or complex fractures and deformations. The structure of the Taylor framework is as follows:
1. the upper and lower rings, which may also be referred to as the proximal and distal rings.
2. Six extension rods with adjustable lengths, and the length of each extension rod can be directly read.
3. The extension rod is connected with the universal rotary joint of the ring.
4. A steel needle and a needle clip for connecting the fixing ring and the bone segment.
At present, a series of fixing rings with different types and fixed sizes are used in the field of bone orthopedic rehabilitation, and doctors select the fixing rings with specific types for patients according to the basic conditions of the patients in practical application. When the fixing ring is selected, the selection place is too large, the action limitation of a patient during rehabilitation can be increased, hidden dangers are increased, and if the selection place is too small, the installation difficulty of the steel needle and the extension rod can be increased, and even the fixing ring cannot be used. Due to the high production cost, it is not practical to require hospitals to backup taylor frames of each model, and the timeliness is difficult to guarantee through the mode of ordering from manufacturers by hospitals. Meanwhile, due to the actual condition of a patient, the best effect is difficult to achieve if the fixing frame with the non-adjustable size is used.
The operation process is that a steel needle is fixed at a proper position near the fracture position, and the steel needle is fixed on an Ilizarov external fixator or a Taylor framework through a needle clamp to realize the fixation and adjustment of the skeleton. The Ilizarov external fixator and the Taylor frame are fixed with needle-threading clamps at certain hole positions on the upper and lower fixing rings, so that the human fracture and the upper and lower rings of the external fixator are fixedly connected with each other. However, the perforation positions are not symmetrical in actual operation, the hole positions of the traditional clamp cannot be perfectly matched with the needle threading positions, and moreover, when a doctor drives a steel needle into the skeleton of a patient in an operation, the steel needle is driven to be deflected due to different technical levels, the steel needle needs to be driven for the second time, secondary or even multiple injuries can be caused, the operation difficulty is large, the threshold is high, and very small errors can bring great pain to the patient.
Currently used in the field of orthopedic rehabilitation of bones are helical taylor frames, in which the patient is first fitted with a fixation ring during clinical surgery and connected by taylor rods after the position of the distal and proximal rings has been determined. The length of the Taylor rods is changed by spirally adjusting the distance between the stud and the sleeve, and the telescopic length of the six Taylor rods is gradually adjusted, so that the relative pose between the near-end ring and the far-end ring can be gradually corrected, and the resetting, correction and fixation of the skeleton are realized. However, the use of screw-adjustable taylor rods is not clinically effective enough, especially when the fracture dislocation is large, the installation is too slow during the operation. Meanwhile, the precision of the screw adjustment method is not high enough, and in order to ensure the precision during the operation, the screw adjustment method can be used for adjustment in an electrically driven mode. However, electrically driven telescopic devices such as electric push rods and linear motors cannot well control the distance during installation, and may require multiple fine adjustments during installation, and the effect is not good.
Disclosure of Invention
The invention aims to solve the problems that in the existing bone correction rehabilitation field, a plurality of fixing rings are selected according to the condition of a patient when used, the size of the fixing ring is difficult to adjust, and the traditional clamp cannot perfectly match the needle threading position, so that the situation that the steel needle is deviated when a doctor performs a surgery and needs to be nailed secondarily when the steel needle is nailed into the bone of the patient is easy to occur, secondary or even multiple injuries are caused, the surgery difficulty is large, the threshold is high, and great pain is brought to the patient, provides a digital adjustable bone correction external fixing frame with a detachable motor, can adjust the size of the fixing frame by adjusting the position of a nut and removing a connecting piece, can realize fine adjustment fixing and needle threading guiding, can not only improve the accuracy and safety of clinical fracture reduction, but also reduce the surgery intensity of a clinician, and greatly improve the success rate of the surgery, and the length of the rod can be adjusted by driving the electric push rod, the length can be adjusted by a screw, and the motor can be conveniently detached after the adjustment is finished.
The invention realizes the purpose through the following technical scheme: a digital adjustable external skeletal correction fixing frame with a detachable motor comprises a pair of combined fixing rings, detachable link mechanisms and a stepless adjustable needle threading clamp, wherein the combined fixing rings are symmetrically arranged up and down, the combined fixing rings are connected through six detachable link mechanisms, and the stepless adjustable needle threading clamp for clamping a steel needle is fixed on the combined fixing rings;
the stepless adjustment needle threading clamp comprises an adjustment upright post, a steel needle sleeve, a fixing nut, an upper locking bolt, a lower locking bolt, a front locking bolt, a rear locking bolt and an adjustment sliding block, wherein the adjustment upright post comprises a rectangular adjustment end positioned at the upper part and a columnar installation end positioned at the lower part, and two opposite end surfaces of the rectangular adjustment end are provided with through linear grooves; the upper end of the columnar mounting end is fixed at the bottom of the rectangular adjusting end, and the lower part of the columnar mounting end is fixed on an external Ilizarov external fixator or a Taylor framework through a fixing nut; the adjusting slide block is provided with a square hole matched with the rectangular adjusting end of the adjusting upright post, the adjusting slide block is sleeved on the rectangular adjusting end of the adjusting upright post through the square hole and slides up and down along the rectangular adjusting end, one side surface of the adjusting slide block is provided with a slide block locking hole, the slide block locking hole and the upper and lower locking bolts are provided with matched threads, and the upper and lower locking bolts penetrate through the slide block locking hole on the adjusting slide block to fix the adjusting slide block on the rectangular adjusting end of the adjusting upright post; two side surfaces of the adjusting slide block, which are adjacent to the side surface provided with the slide block locking hole, are provided with penetrating sleeve mounting holes, the side surface where one sleeve mounting hole is located is provided with a cylindrical protrusion, the cylindrical protrusion is provided with a penetrating through hole with the same aperture as the sleeve mounting hole, and the steel needle sleeve sequentially penetrates through the sleeve mounting hole on the adjusting slide block, the linear groove on the adjusting upright post and the through hole on the cylindrical protrusion on the adjusting slide block; the circumferential surface of the cylindrical bulge is also provided with a steel needle locking hole communicated with the through hole in the cylindrical bulge, and the steel needle sleeve is provided with a round hole corresponding to the position of the steel needle locking hole; the front and rear locking bolts penetrate through the steel needle locking holes and the round holes to fix the steel needle and the steel needle sleeve on the adjusting slide block;
the combined fixing ring comprises an arc-shaped part, a sleeve-type connecting piece and a bolt-type connecting piece, wherein the arc-shaped part is arc-shaped, a plurality of mounting holes are uniformly distributed on the arc-shaped part, the sleeve-type connecting piece comprises an integrally formed arc-shaped connecting end and a linear connecting end, the width and radian of the arc-shaped connecting end and the arc-shaped part are the same, the linear connecting end is integrally linearly arranged, and an inserting groove is formed in the linear connecting end; the arc-shaped connecting end is provided with a first fixing hole, and the linear connecting end is provided with a second fixing hole; the bolt type connecting piece comprises an arc-shaped connecting piece and a linear connecting piece which are integrally formed, the width and radian of the arc-shaped connecting piece and the arc-shaped part are the same, the linear connecting piece is integrally arranged in a linear mode, and the size of the linear connecting piece is matched with the inserting groove of the linear connecting end of the sleeve type connecting piece; the arc-shaped connecting piece is only provided with a third fixing hole, and the linear connecting piece is provided with a fourth fixing hole; one end of the arc-shaped part is fixedly connected with the arc-shaped connecting end on the sleeve-type connecting piece through a bolt penetrating through the mounting hole and the first fixing hole, and the other end of the arc-shaped part is fixedly connected with the arc-shaped connecting piece on the bolt-type connecting piece through a bolt penetrating through the mounting hole and the third fixing hole; the linear connecting piece on the bolt type connecting piece is inserted into the inserting groove on the linear connecting end on the sleeve type connecting piece and is fixedly connected with the inserting groove through a bolt penetrating through the second fixing hole and the fourth fixing hole; the number of the arc-shaped parts, the number of the sleeve-type connecting pieces and the number of the plug-type connecting pieces are equal, and the arc-shaped parts, the sleeve-type connecting pieces and the plug-type connecting pieces are sequentially connected to form the whole combined type fixing ring;
the detachable connecting rod mechanism comprises an electric push rod, a coupler, a two-way connecting piece, an upper fixing ring, a lower fixing ring, a fine adjustment type connecting piece, a spiral connecting rod, a universal joint, a pin shaft type connecting piece and a sleeve connecting piece, wherein the lower end of the spiral connecting rod is connected with a combined fixing ring through the universal joint; a circle of mounting holes uniformly distributed along the circumferential direction are formed in the fine adjustment type connecting piece, 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 two-way connecting piece is a universal joint connecting end, the universal joint connecting end of the two-way connecting piece is connected with another combined type fixing ring through a universal joint, the left side and the right side of the two-way connecting piece are columnar protrusions, threaded holes are formed in end faces of the columnar protrusions on the left side and the right side of the two-way connecting piece, a push rod fixing groove is formed in the bottom of the two-way connecting piece, fixing holes used for fixing the upper end of an electric push rod are formed in two side faces of the push rod fixing groove, and the upper end of the electric; the two sides of each two-way connecting piece are connected with a sleeve connecting piece, the upper end of each sleeve connecting piece is fixed at the cylindrical protruding threaded hole parts at the two sides of each two-way connecting piece through bolts, the lower end of each sleeve connecting piece is provided with an inserting groove, the upper end of each pin shaft type connecting piece is inserted into the inserting groove of each sleeve connecting piece, the lower end of each sleeve connecting piece and the upper end of each pin shaft type connecting piece are provided with a row of fixing holes, and the lower end of each sleeve connecting piece and the upper end of each pin shaft type connecting piece are fixed through; the total length of the sleeve connecting piece and the pin shaft type connecting piece is determined by the position of the bolt penetrating through the fixing hole, and the lower end of the pin shaft type connecting piece is ensured to be connected with the fine adjustment type connecting piece through the bolt during positioning.
Furthermore, the width of the arc-shaped part, the width of the arc-shaped connecting piece, the width of the linear connecting piece, the width of the arc-shaped connecting end and the width of the linear connecting end are equal.
Furthermore, arc part, telescopic connecting piece and bolt formula connecting piece all are provided with three.
Further, the mounting holes on the arc-shaped part are distributed at equal intervals, the mounting holes at the two ends of the arc-shaped part are fixedly connected with the sleeve-type connecting piece and the plug pin type connecting piece through bolts, and the mounting hole in the middle of the arc-shaped part is used for being connected with the bone needle fixing frame.
Furthermore, the length of the linear connecting piece of the plug pin type connecting piece is longer than that of the linear connecting end of the sleeve type connecting piece, at least six fourth fixing holes are formed in the linear connecting piece of the plug pin type connecting piece, and two second fixing holes are formed in the linear connecting end of the sleeve type connecting piece.
Furthermore, the adjusting upright post is in interference fit with the adjusting slide block.
Furthermore, the diameter of the steel needle sleeve is slightly smaller than the width of the linear groove on the rectangular adjusting end.
Furthermore, the steel needle locking hole is provided with an internal thread matched with the external thread on the front and rear locking bolts, and the diameter of the through hole on the cylindrical protrusion on the adjusting sliding block is slightly larger than the maximum external diameter of the front and rear locking bolts.
Further, the upper end of the upper fixing ring, the lower fixing ring and the upper end of the spiral connecting rod are in clearance fit, threaded positioning holes are formed in the side faces of the upper fixing ring and the lower fixing ring, 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 a telescopic rod, the lower end of the spiral connecting rod is a spiral sleeve, the upper end of the spiral connecting rod is a spiral rod with a nut, the lower end of the spiral rod is inserted into the spiral sleeve, and the spiral connecting rod can be extended and shortened by rotating the nut.
Furthermore, the top of hob is the threaded straight-bar, be equipped with on upper fixed ring and the lower fixed ring with the external screw thread matched with internal thread of straight-bar, upper fixed ring and lower fixed ring realize the adjustment of upper fixed ring and lower fixed ring position on the straight-bar through external screw thread and internal screw thread cooperation.
Furthermore, the lower end of the pin shaft type connecting piece is provided with a vertical boss, the vertical boss is provided with a fixing hole, and the pin shaft type connecting piece is fixedly connected with the mounting hole on the fine adjustment type connecting piece through a bolt penetrating through the fixing hole on the vertical boss.
The invention has the beneficial effects that: 1. the size of the combined fixing ring can be adjusted by adjusting the position of the nut and removing the connecting piece, so that the applicability and the compatibility of the device are improved.
2. The combined fixing ring provided by the invention is connected through all parts, and die change operation is not required during production so as to realize processing of fixing rings with different sizes, so that the production cost can be obviously reduced, and the production efficiency is improved.
3. The combined fixing ring has high reuse rate, and the parts of the fixing ring can be recovered after the patient is cured, so that the treatment cost is effectively reduced.
4. By using the combined fixing ring, a doctor does not need to select a fixing ring with a specific model for a patient, but only needs to select proper fixing ring parts according to the shape or thickness of the leg of the patient, so that the action limitation of the patient during rehabilitation is reduced, and hidden dangers are reduced.
5. The size of the fixing frame can be adjusted by replacing the device, so that the purchasing cost of the hospital is greatly reduced.
6. The invention can realize fine adjustment and fixation, provide threading guide, not only improve the accuracy and safety of clinical fracture reduction, but also reduce the operation intensity of clinicians and greatly improve the success rate of operations.
7. The detachable connecting rod mechanism can adjust the rod length through the driving of the electric push rod, can also adjust the length through a screw, and can be conveniently detached after the motor is adjusted; during clinical operation, in order to realize quick connection between the near-end ring and the far-end ring, manual fine adjustment can be realized through a thread pair; in order to realize rapid and accurate positioning, the electric push rod can be controlled by the motor to adjust; after the clinical adjustment is completed, the life of the patient is greatly affected due to the redundancy of the six electric push rod lines and the too large quality.
8. The invention provides a design of a detachable electric push rod, wherein a replacing connecting device is connected to two ends of a linear push rod through bolts to keep the positions of the two ends unchanged, and then the electric push rod is detached and replaced by a replacing screw device.
Drawings
Fig. 1 is a schematic view of the whole using state of the digital adjustable external skeletal orthopedic fixation frame with a detachable motor.
Fig. 2 is a schematic view of the overall use state of the present invention when the electric putter is used.
Fig. 3 is a schematic view of the overall use state of the present invention when the electric putter is not used.
Fig. 4 is a schematic view of the whole mechanism of the combined fixing ring of the invention.
Fig. 5 is a schematic structural view of a plug type connecting piece in the combined fixing ring.
FIG. 6 is a schematic view of the construction of the sleeve-type connection member in the modular fixing ring of the present invention.
FIG. 7 is a schematic view of the whole structure of the stepless adjustable needle threading clamp with a steel needle.
Fig. 8 is a schematic structural diagram of an adjusting upright post in the stepless adjusting needle threading clamp.
Fig. 9 is a schematic structural diagram of a steel needle sleeve in the stepless adjustment needle threading clamp.
Fig. 10 is a schematic structural diagram of an adjusting slide block in the stepless adjusting needle threading clamp.
Fig. 11 is a schematic view of the structure of the detachable link mechanism of the present invention.
Fig. 12 is a schematic structural view of the screw type connecting rod of the present invention.
In the figure, 1-combined fixed ring, 2-detachable link mechanism, 3-stepless adjustment needle-threading clamp, 5-sleeve type connecting piece, 6-arc part, 7-bolt type connecting piece, 8-mounting hole, 9-arc connecting piece, 10-linear connecting piece, 11-third fixing hole, 12-fourth fixing hole, 13-arc connecting end, 14-linear connecting end, 15-inserting groove, 16-first fixing hole, 17-second fixing hole, 18-adjusting upright post, 19-steel needle, 20-steel needle sleeve, 21-fixing nut, 22-up and down locking bolt, 23-front and back locking bolt, 24-adjusting slide block, 25-rectangular adjusting end, 26-columnar mounting end, 27-linear groove, etc, 28-sleeve mounting hole, 29-cylindrical protrusion, 30-sliding block locking hole, 31-steel needle locking hole, 35-bidirectional connecting piece, 36-electric push rod, 37-coupler, 38-upper fixing ring, 39-fine adjustment type connecting piece, 40-screw type connecting rod, 41-universal joint, 42-lower fixing ring, 43-pin shaft type connecting piece, 44-sleeve connecting piece, 45-screw rod, 46-screw sleeve and 47-screw cap.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-3, a removable digital adjustable skeletal orthopedic external fixation frame of motor, including solid fixed ring 1 of combination formula, removable link mechanism 2 and infinitely variable control threading needle anchor clamps 3, solid fixed ring 1 of combination formula is provided with a pair of and the symmetry setting from top to bottom, and solid fixed ring 1 of combination formula is connected through six removable link mechanisms 2 for the infinitely variable control threading needle anchor clamps 3 of clamping steel needle 19 are fixed on solid fixed ring 1 of combination formula, and after a plurality of infinitely variable control threading needle anchor clamps 3 are fixed on solid fixed ring 1 of combination formula, utilize the steel needle 19 on these infinitely variable control threading needle anchor clamps 3 to penetrate the removable digital adjustable skeletal orthopedic external fixation frame of motor in realizing in the skeleton of patient.
As shown in fig. 7 to 10, the stepless adjustment needle threading clamp 3 includes an adjustment upright column 18, a steel needle sleeve 20, a fixing nut 21, an upper locking bolt 22, a lower locking bolt 22, a front locking bolt 23, a rear locking bolt 23 and an adjustment slider 24, the adjustment upright column 18 includes a rectangular adjustment end 25 located at the upper part and a cylindrical installation end 26 located at the lower part, and two opposite end surfaces of the rectangular adjustment end 25 are provided with through linear grooves 27; the upper end of the columnar mounting end 26 is fixed at the bottom of the rectangular adjusting end 25, and the lower part of the columnar mounting end 26 is fixed on an external Ilizarov external fixator or a Taylor framework through a fixing nut 21; the adjusting slide block 24 is provided with a square hole matched with the rectangular adjusting end 25 of the adjusting upright post 18, the adjusting slide block 24 is sleeved on the rectangular adjusting end 25 of the adjusting upright post 18 through the square hole and slides up and down along the rectangular adjusting end 25, one side surface of the adjusting slide block 24 is provided with a slide block locking hole 30, the slide block locking hole 30 and the upper and lower locking bolts 22 are provided with matched threads, and the upper and lower locking bolts 22 penetrate through the slide block locking hole 30 on the adjusting slide block 24 to fix the adjusting slide block 24 on the rectangular adjusting end 25 of the adjusting upright post 18; two side surfaces of the adjusting slide block 24 adjacent to the side surface provided with the slide block locking hole 30 are provided with penetrating sleeve mounting holes 28, the side surface of one sleeve mounting hole 28 is provided with a cylindrical protrusion 29, the cylindrical protrusion 29 is provided with a penetrating through hole with the same aperture as that of the sleeve mounting hole 28, and the steel needle sleeve 20 sequentially passes through the sleeve mounting hole 28 on the adjusting slide block 24, the linear groove 27 on the adjusting upright column 18 and the through hole on the cylindrical protrusion 29 on the adjusting slide block 24; the circumferential surface of the cylindrical bulge 29 is also provided with a steel needle locking hole 31 communicated with the through hole in the cylindrical bulge 29, and the steel needle sleeve 20 is provided with a round hole corresponding to the position of the steel needle locking hole 31; the front and rear locking bolts 23 pass through the steel needle locking holes 31 and the round holes to fix the steel needle 19 and the steel needle sleeve 20 on the adjusting slide block 24.
The adjusting upright column 18 is in interference fit with the adjusting slider 24. The diameter of the needle sleeve 20 is slightly smaller than the width of the linear groove on the rectangular adjusting end 25.
The steel needle locking hole 31 is provided with an internal thread matched with the external thread on the front and rear locking bolts 23, and the diameter of the through hole on the cylindrical protrusion 29 on the adjusting slide block 24 is slightly larger than the maximum external diameter of the front and rear locking bolts 23.
After the doctor confirms 19 mounted position of steel needle, through computational analysis, confirm the mounted position of anchor clamps, adjust after the angle through fixation nut 21 installs on solid fixed ring of combination formula, adjust the position about 19 of steel needle through adjusting the slider 24, it is fixed to screw up through upper and lower locking bolt 22 after the position is confirmed, steel needle 19 penetrates patient's fracture suitable position through steel needle sleeve 20 and installs, steel needle sleeve 20 provides the guide effect of steel needle installation, the position of steel needle 19 back and forth is adjusted through front and back locking bolt 23, it is fixed to screw up after the position is confirmed.
As shown in fig. 4 to 6, the combined type fixing ring 1 comprises an arc-shaped part 6, a sleeve-type connecting piece 5 and a plug-type connecting piece 7, wherein the arc-shaped part 6 is arc-shaped, a plurality of mounting holes 8 are uniformly distributed on the arc-shaped part 6, the sleeve-type connecting piece 5 comprises an arc-shaped connecting end 13 and a linear connecting end 14 which are integrally formed, the width and the radian of the arc-shaped connecting end 13 are the same as those of the arc-shaped part 6, the linear connecting end 14 is integrally linearly arranged, and a plug-in groove 15 is arranged in the linear; a first fixing hole 16 is formed in the arc-shaped connecting end 13, and a second fixing hole 17 is formed in the linear connecting end 14; the bolt type connecting piece 7 comprises an arc-shaped connecting piece 9 and a linear connecting piece 10 which are integrally formed, the width and radian of the arc-shaped connecting piece 9 are the same as those of the arc-shaped part 6, the linear connecting piece 10 is integrally linearly arranged, and the size of the linear connecting piece 10 is matched with an inserting groove 15 of a linear connecting end 14 of the sleeve type connecting piece 5; the arc-shaped connecting piece 9 is only provided with a third fixing hole 11, and the linear connecting piece 10 is provided with a fourth fixing hole 12; one end of the arc-shaped part 6 is fixedly connected with an arc-shaped connecting end 13 on the sleeve-type connecting piece 5 through a bolt penetrating through the mounting hole 8 and the first fixing hole 16, and the other end of the arc-shaped part 6 is fixedly connected with an arc-shaped connecting piece 9 on the bolt-type connecting piece 7 through a bolt penetrating through the mounting hole 8 and the third fixing hole 11; the linear connecting piece 10 on the bolt type connecting piece 7 is inserted into the inserting groove 15 on the linear connecting end 14 on the sleeve type connecting piece 5 and is fixedly connected through a bolt passing through the second fixing hole 17 and the fourth fixing hole 12; the number of the arc-shaped parts 6, the sleeve-type connecting pieces 5 and the plug-type connecting pieces 7 is equal, and the arc-shaped parts 6, the sleeve-type connecting pieces 5 and the plug-type connecting pieces 7 are sequentially connected to form the whole combined type fixing ring 1.
The width of the arc-shaped part 6, the width of the arc-shaped connecting piece 9, the width of the linear connecting piece 10, the width of the arc-shaped connecting end 13 and the width of the linear connecting end 14 are equal. The arc-shaped part 6, the sleeve-type connecting piece 5 and the plug pin type connecting piece 7 are all provided with three.
The mounting holes 8 on the arc-shaped part 6 are distributed at equal intervals, the mounting holes 8 at the two ends of the arc-shaped part 6 are fixedly connected with the sleeve-type connecting piece 5 and the plug pin type connecting piece 7 through bolts, and the mounting holes 8 in the middle of the arc-shaped part 6 are used for being connected with a bone needle fixing frame.
The length of the linear connecting piece 10 of the plug type connecting piece 7 is longer than that of the linear connecting end 14 of the sleeve type connecting piece 5, at least six fourth fixing holes 12 are formed in the linear connecting piece 10 of the plug type connecting piece 7, and two second fixing holes 17 are formed in the linear connecting end 14 of the sleeve type connecting piece 5.
As shown in fig. 11 to 12, the detachable link mechanism 2 includes an electric push rod 36, a coupler 37, a two-way connector 35, an upper fixing ring 38, a lower fixing ring 42, a fine adjustment connector 39, a screw-type connecting rod 40, a universal joint 41, a pin-shaft connector 43, and a sleeve connector 44, the lower end of the screw-type connecting rod 40 is connected to a combined fixing ring through the universal joint 41, the upper fixing ring 38, the fine adjustment connector 39, and the lower fixing ring 42 are sequentially sleeved on the upper end of the screw-type connecting rod 40, and the fine adjustment connector 39 is positioned on the screw-type connecting rod 40 through the positioning of the upper fixing ring 38 and the lower fixing ring 42; a circle of mounting holes which are uniformly distributed along the circumferential direction are formed in the fine adjustment type connecting piece 39, 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 two-way 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 another combined type fixing ring through a universal joint 41, the left side and the right side of the bidirectional connecting piece 35 are columnar protrusions, threaded holes are formed in the end faces of the columnar protrusions 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 used for fixing the upper end of the electric push rod 36 are formed in two side faces of the push rod fixing groove, and the upper end of the electric push rod 36 extends into the push rod fixing groove; the two sides of each bidirectional connecting piece 35 are connected with a sleeve connecting piece 44, the upper end of each sleeve connecting piece 44 is fixed at the cylindrical protruding threaded hole parts at the two sides of the bidirectional connecting piece 35 through bolts, the lower end of each sleeve connecting piece 44 is provided with an inserting groove, the upper end of each pin shaft type connecting piece 43 is inserted in the inserting groove of each sleeve connecting piece 44, the lower end of each sleeve connecting piece 44 and the upper end of each pin shaft type connecting piece 43 are provided with a row of fixing holes, and the lower end of each sleeve connecting piece 44 and the upper end of each pin shaft type connecting piece 43 are fixed through bolts penetrating through the fixing; the total length of the bush connection 44 and the pin connection 43 is determined by the position of the bolt through the fastening hole, which ensures that the lower end of the pin connection 43 and the fine adjustment connection 39 can be connected by means of the bolt when positioned.
The upper end of the upper fixing ring 38 and the upper end of the lower fixing ring 42 are in clearance fit with the upper end of the spiral connecting rod 40, the side faces of the upper fixing ring 38 and the lower fixing ring 42 are provided with positioning holes with threads, 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.
Spiral connecting rod 40 is the telescopic link, and 40 lower extremes of spiral connecting rod are spiral shell 46, and 40 upper ends of spiral connecting rod are the hob 45 that has the nut, and in the lower extreme of hob 45 inserted the spiral shell 46, the extension and the shortening of spiral connecting rod 40 can be realized to rotatory nut.
The top 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 the external threads of the straight rod, and the upper fixing ring 38 and the lower fixing ring 42 are matched with the internal threads through the external threads to adjust the positions of the upper fixing ring 38 and the lower fixing ring 42 on the straight rod.
The lower end of the pin shaft type connecting piece 43 is provided with a vertical boss, the vertical boss is provided with a fixing hole, and the pin shaft type connecting piece 43 is fixedly connected with a bolt passing through the fixing hole on the vertical boss and the mounting hole on the fine adjustment type connecting piece 39.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, which should be considered to fall within the protection scope of the patent of the present invention.
Claims (10)
1. The utility model provides a removable adjustable orthopedic external fixation frame of digital skeleton of motor which characterized in that: the needle threading device comprises a combined type fixing ring (1), detachable connecting rod mechanisms (2) and stepless adjustment needle threading clamps (3), wherein the combined type fixing ring (1) is provided with a pair of vertically symmetrical fixing rings, the combined type fixing ring (1) is connected through six detachable connecting rod mechanisms (2), and the stepless adjustment needle threading clamps (3) for clamping steel needles (19) are fixed on the combined type fixing ring (1);
the stepless adjustment needle threading clamp (3) comprises an adjustment upright post (18), a steel needle sleeve (20), a fixing nut (21), an upper locking bolt, a lower locking bolt (22), a front locking bolt, a rear locking bolt (23) and an adjustment sliding block (24), wherein the adjustment upright post (18) comprises a rectangular adjustment end (25) positioned at the upper part and a columnar installation end (26) positioned at the lower part, and two opposite end surfaces of the rectangular adjustment end (25) are provided with through linear grooves (27); the upper end of the columnar mounting end (26) is fixed at the bottom of the rectangular adjusting end (25), and the lower part of the columnar mounting end (26) is fixed on an external Ilizarov external fixator or a Taylor framework through a fixing nut (21); the adjusting device is characterized in that a square hole matched with the rectangular adjusting end (25) of the adjusting upright post (18) is formed in the adjusting slide block (24), the adjusting slide block (24) is sleeved on the rectangular adjusting end (25) of the adjusting upright post (18) through the square hole and slides up and down along the rectangular adjusting end (25), a slide block locking hole (30) is formed in one side surface of the adjusting slide block (24), matched threads are formed in the slide block locking hole (30) and the upper and lower locking bolts (22), and the upper and lower locking bolts (22) penetrate through the slide block locking hole (30) in the adjusting slide block (24) to fix the adjusting slide block (24) on the rectangular adjusting end (25) of the adjusting upright post (18); two side faces, adjacent to the side face provided with the sliding block locking hole (30), of the adjusting sliding block (24) are provided with penetrating sleeve mounting holes (28), the side face where one sleeve mounting hole (28) is located is provided with a cylindrical protrusion (29), the cylindrical protrusion (29) is provided with a penetrating through hole which is consistent with the aperture of the sleeve mounting hole (28), and the steel needle sleeve (20) sequentially penetrates through the sleeve mounting hole (28) in the adjusting sliding block (24), a linear groove (27) in the adjusting upright column (18) and a through hole in the cylindrical protrusion (29) in the adjusting sliding block (24); the circumferential surface of the cylindrical bulge (29) is also provided with a steel needle locking hole (31) communicated with the through hole in the cylindrical bulge (29), and the steel needle sleeve (20) is provided with a round hole corresponding to the position of the steel needle locking hole (31); the front and rear locking bolts (23) penetrate through the steel needle locking holes (31) and the round holes to fix the steel needle (19) and the steel needle sleeve (20) on the adjusting slide block (24);
the combined type fixing ring (1) comprises an arc-shaped part (6), a sleeve-type connecting piece (5) and a plug pin-type connecting piece (7), wherein the arc-shaped part (6) is arc-shaped, a plurality of mounting holes (8) are uniformly distributed in the arc-shaped part (6), the sleeve-type connecting piece (5) comprises an arc-shaped connecting end (13) and a linear connecting end (14) which are integrally formed, the width and the radian of the arc-shaped connecting end (13) and the radian of the arc-shaped part (6) are the same, the linear connecting end (14) is integrally linearly arranged, and an inserting groove (15) is formed in the linear connecting end; a first fixing hole (16) is formed in the arc-shaped connecting end (13), and a second fixing hole (17) is formed in the linear connecting end (14); the bolt type connecting piece (7) comprises an arc-shaped connecting piece (9) and a linear connecting piece (10) which are integrally formed, the width and radian of the arc-shaped connecting piece (9) are the same as those of the arc-shaped part (6), the linear connecting piece (10) is integrally arranged in a linear mode, and the size of the linear connecting piece (10) is matched with an inserting groove (15) of a linear connecting end (14) of the sleeve-type connecting piece (5); the arc-shaped connecting piece (9) is only provided with a third fixing hole (11), and the linear connecting piece (10) is provided with a fourth fixing hole (12); one end of the arc-shaped part (6) is fixedly connected with an arc-shaped connecting end (13) on the sleeve-type connecting piece (5) through a bolt penetrating through the mounting hole (8) and the first fixing hole (16), and the other end of the arc-shaped part (6) is fixedly connected with an arc-shaped connecting piece (9) on the bolt-type connecting piece (7) through a bolt penetrating through the mounting hole (8) and the third fixing hole (11); the linear connecting piece (10) on the bolt type connecting piece (7) is inserted into the inserting groove (15) on the linear connecting end (14) on the sleeve type connecting piece (5) and is fixedly connected with the bolt passing through the second fixing hole (17) and the fourth fixing hole (12); the number of the arc-shaped parts (6), the number of the sleeve-type connecting pieces (5) and the number of the plug-type connecting pieces (7) are equal, and the arc-shaped parts (6), the sleeve-type connecting pieces (5) and the plug-type connecting pieces (7) are sequentially connected to form the whole combined type fixing ring (1);
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 adjustment type 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), the lower end of the spiral connecting rod (40) is connected with a combined fixing ring through the universal joint (41), the upper fixing ring (38), the fine adjustment type 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 adjustment type connecting piece (39) realizes the positioning of the spiral connecting rod (40) through the positioning of the upper fixing ring (38) and the lower fixing ring (42); a circle of mounting holes which are uniformly distributed along the circumferential direction are formed in the fine adjustment type connecting piece (39), 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 another combined type fixing ring through the universal joint (41), the left side and the right side of the bidirectional connecting piece (35) are columnar protrusions, threaded holes are formed in the end faces of the columnar protrusions 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 used for fixing the upper end of an electric push rod (36) are formed in two side faces of the push rod fixing groove, and the upper end of the electric push rod (36) extends into the push rod fixing groove and is fixedly; the two sides of each bidirectional connecting piece (35) are connected with a sleeve connecting piece (44), the upper end of each sleeve connecting piece (44) is fixed at the cylindrical protruding threaded hole positions at the two sides of each bidirectional connecting piece (35) through bolts, the lower end of each sleeve connecting piece (44) is provided with an inserting groove, the upper end of each pin shaft type connecting piece (43) is inserted into the inserting groove of each sleeve connecting piece (44), the lower end of each sleeve connecting piece (44) and the upper end of each pin shaft type connecting piece (43) are provided with a row of fixing holes, and the lower end of each sleeve connecting piece (44) and the upper end of each pin shaft type connecting piece (43) are fixed through bolts penetrating through the; the total length of the sleeve connection (44) and the pin connection (43) is determined by the position of the bolt passing through the fixing hole, and the lower end of the pin connection (43) and the fine adjustment connection (39) can be connected through the bolt when positioning.
2. The removable digital adjustable orthopedic skeletal external fixation support of claim 1, wherein: the width of the arc-shaped part (6), the width of the arc-shaped connecting piece (9), the width of the linear connecting piece (10), the width of the arc-shaped connecting end (13) and the width of the linear connecting end (14) are equal.
3. The removable digital adjustable orthopedic skeletal external fixation support of claim 1, wherein: the arc-shaped part (6), the sleeve-type connecting piece (5) and the plug pin type connecting piece (7) are all provided with three.
4. The removable digital adjustable orthopedic skeletal external fixation support of claim 1, wherein: mounting holes (8) on the arc-shaped part (6) are distributed at equal intervals, the mounting holes (8) at the two ends of the arc-shaped part (6) are fixedly connected with the sleeve-type connecting piece (5) and the plug pin type connecting piece (7) through bolts, and the mounting hole (8) in the middle of the arc-shaped part (6) is used for being connected with a bone needle fixing frame.
5. The removable digital adjustable orthopedic skeletal external fixation support of claim 1, wherein: the length of the linear connecting piece (10) of the plug pin type connecting piece (7) is longer than that of the linear connecting end (14) of the sleeve type connecting piece (5), at least six fourth fixing holes (12) are formed in the linear connecting piece (10) of the plug pin type connecting piece (7), and two second fixing holes (17) are formed in the linear connecting end (14) of the sleeve type connecting piece (5).
6. The removable digital adjustable orthopedic skeletal external fixation support of claim 1, wherein: the steel needle locking hole (31) is provided with an internal thread matched with the external thread on the front and rear locking bolts (23), and the diameter of a through hole on the cylindrical protrusion (29) on the adjusting sliding block (24) is slightly larger than the maximum external diameter of the front and rear locking bolts (23).
7. The removable digital adjustable orthopedic skeletal external fixation support of claim 1, wherein: the upper end of the upper fixing ring (38) and the upper end of the lower fixing ring (42) are in clearance fit with the upper end of the spiral connecting rod (40), the side faces of the upper fixing ring (38) and the lower fixing ring (42) are provided with positioning holes with threads, 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. The removable digital adjustable orthopedic skeletal external fixation support of claim 1, wherein: spiral connecting rod (40) are the telescopic link, and spiral connecting rod (40) lower extreme is spiral shell (46), and spiral rod (45) for having the nut on spiral connecting rod (40), in the lower extreme of spiral rod (45) inserted spiral shell (46), the extension and the shortening of spiral connecting rod (40) can be realized to the rotatory nut.
9. The removable digital adjustable orthopedic skeletal external fixation support of claim 1, wherein: the top of hob (45) is the straight-bar of band screw thread, is equipped with the internal thread with the external screw thread matched with of straight-bar on upper fixed ring (38) and lower fixed ring (42), and upper fixed ring (38) and lower fixed ring (42) realize the adjustment of upper fixed ring (38) and lower fixed ring (42) position on the straight-bar through external screw thread and internal screw thread cooperation.
10. The removable digital adjustable orthopedic skeletal external fixation support of claim 1, wherein: the lower end of the pin shaft type connecting piece (43) is provided with a vertical boss, the vertical boss is provided with a fixing hole, and the pin shaft type connecting piece (43) is fixedly connected with a bolt passing through the fixing hole on the vertical boss and the mounting hole on the fine adjustment type connecting piece (39).
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| CN201910296787.3A CN110269671B (en) | 2019-04-14 | 2019-04-14 | Digital adjustable bone orthopedic external fixation frame with detachable motor |
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| CN201910296787.3A CN110269671B (en) | 2019-04-14 | 2019-04-14 | Digital adjustable bone orthopedic external fixation frame with detachable motor |
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| CN110269671B true CN110269671B (en) | 2020-09-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8029505B2 (en) * | 2005-08-25 | 2011-10-04 | Synthes Usa, Llc | External fixation system and method of use |
| CN104814779B (en) * | 2015-05-07 | 2017-01-18 | 浙江工业大学 | External fixation device needle threading fixture capable of being adjusted in multiple directions and at multiple angles |
| CA3014098C (en) * | 2016-02-09 | 2024-06-04 | Amdt Holdings, Inc. | External bone fixation systems |
| CN106264693A (en) * | 2016-04-06 | 2017-01-04 | 苏州爱得科技发展股份有限公司 | The dynamic external fixator of multiaxis |
| US10010350B2 (en) * | 2016-06-14 | 2018-07-03 | Stryker European Holdings I, Llc | Gear mechanisms for fixation frame struts |
| 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 |
| TR201617639A1 (en) * | 2016-12-01 | 2018-06-21 | Univ Yeditepe | AN EXTERNAL FIXER |
| CN109567914B (en) * | 2018-11-16 | 2021-03-02 | 四川大学华西医院 | Scalable defective bone restoration external fixation device |
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Effective date of registration: 20220815 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. Address before: The city Zhaohui six districts Chao Wang Road Hangzhou City, Zhejiang province 310014 18 Patentee before: JIANG University OF TECHNOLOGY |