CN209864003U - Digital adjustable bone orthopedic external fixing frame with detachable motor - Google Patents
Digital adjustable bone orthopedic external fixing frame with detachable motor Download PDFInfo
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- CN209864003U CN209864003U CN201920498442.1U CN201920498442U CN209864003U CN 209864003 U CN209864003 U CN 209864003U CN 201920498442 U CN201920498442 U CN 201920498442U CN 209864003 U CN209864003 U CN 209864003U
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Abstract
The utility model discloses a digital adjustable skeleton orthopedic external fixing frame with a detachable motor, which comprises a combined fixing ring, a detachable link mechanism and a stepless adjusting threading clamp, wherein the combined fixing ring is provided with a pair of fixed rings, the combined fixing ring is connected by six detachable link mechanisms, and the stepless adjusting 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 utility model can adjust the size of the fixing ring by adjusting the position of the nut and removing the connecting piece, thereby improving the applicability and compatibility of the device; can realize that the fine setting is fixed, provide the guide of threading a needle, not only can improve accuracy and the security that clinical fracture resets, alleviate clinician's operation intensity moreover, promote the success rate of operation greatly.
Description
Technical Field
The utility model relates to an orthopedic correction, recovered field, more specifically the theory that says so especially relates to a removable digital adjustable orthopedic external fixation frame of skeleton of 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.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that the size of a fixing ring is difficult to adjust and the traditional clamp can not perfectly match the needle threading position, so that the steel needle is easy to deviate when a doctor performs the operation to nail the steel needle into the skeleton of a patient, the secondary nail-in is needed to be performed, secondary or even multiple injuries are caused, the operation difficulty is large, the threshold is high, and great pain is brought to the patient, the digital adjustable skeleton orthopedic external fixing frame with the detachable motor is provided, the size of the fixing frame can be adjusted by adjusting the position of a nut and removing a connecting piece, fine adjustment and fixation can be realized, needle threading guidance can not only improve the accuracy and safety of clinical fracture restoration, but also reduce the operation intensity of a clinician, the success rate of operation has been promoted greatly, and both can adjust the pole length through the electric putter drive, also can be through spiral regulation length, can also convenient dismantlement after the motor regulation is accomplished.
The utility model discloses a following technical scheme realizes above-mentioned purpose: a digital adjustable external skeletal correction fixing frame with a detachable motor 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 upper and lower symmetrical fixing rings, 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 ring;
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-side 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;
the stepless adjustment needle threading clamp comprises a steel needle upper and lower stepless adjustment device, a steel needle guide locking device and a fixing nut, the steel needle upper and lower stepless adjustment device comprises a screw rod, an upper fastening nut, a lower fastening nut and a sliding ring, the screw rod comprises an adjustment end and a fixed end, the adjustment end is fixed above the fixed end, threads are fully distributed on the adjustment end, two penetrating linear grooves parallel to the axial lead of the screw rod are formed in the adjustment end at intervals of 90 degrees, the sliding ring is sleeved at the adjustment end of the screw rod, internal threads of the upper fastening nut and the lower fastening nut are matched and connected with threads on the adjustment end of the screw rod, and the upper end and the lower end of the sliding ring are fixed in the middle of the adjustment end of the screw rod through the upper fastening nut and the lower; 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 through 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 and 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 in the sliding ring and a linear groove in the adjusting end of the screw rod, a locking hole is arranged on the side surface of the steel needle sleeve, and the locking bolt penetrates through a bolt hole in the sliding ring and the locking hole in the side surface of the steel needle sleeve to tightly push 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 fixing nut.
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 outer side surface of the steel needle sleeve is in interference fit with a sleeve connecting hole in the sliding ring, and the outer side surface of the steel needle sleeve is in clearance fit with a linear groove in the adjusting end of the screw rod.
Furthermore, a boss is arranged at one end of the steel needle sleeve, and the outer diameter of the boss is larger than the diameter of the sleeve connecting hole in the sliding ring.
Further, the sliding ring realizes stepless adjustment of the upper position and the lower position through the up-and-down movement of the upper fastening nut and the lower fastening nut.
Furthermore, the width of the linear groove on the adjusting end of the screw rod is slightly larger than the outer diameter of the steel needle sleeve.
Furthermore, the bolt hole on the sliding ring is provided with threads matched with the locking bolt.
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 beneficial effects of the utility model reside in that: 1. the utility model discloses a solid fixed ring of combination formula can adjust solid fixed ring's size through adjusting nut's position and the mode of getting rid of the connecting piece, improves the suitability and the compatibility of this device.
2. The utility model relates to a solid fixed ring of combination formula is connected through each spare part, need not carry out the solid fixed ring's of retooling operation in order to realize not equidimension processing when production, can show ground reduction in production cost, improves production efficiency.
3. The utility model relates to a solid fixed ring reuse rate of combination formula is high, can retrieve solid fixed ring's spare part after the patient fully recovers, and this will reduce treatment cost effectively.
4. Through using the utility model discloses a solid fixed ring of combination formula, the doctor need not to select the solid fixed ring of specific model for the patient, but only need select appropriate stationary ring spare part according to patient's shank shape or thickness, reduces the action restriction when the patient is recovered, reduces the hidden danger.
5. The utility model discloses can reduce the model demand of hospital to the taylor frame, do not need the taylor frame of the various models of purchase, only need to change the regulation that the mount size just can be realized to suitable this device, greatly reduced the purchasing cost of hospital.
6. The utility model discloses a needle anchor clamps are worn in infinitely variable control can realize finely tuning fixedly, provides the needle guide, not only can improve accuracy and the security that clinical fracture resets, alleviates clinician's operation intensity moreover, has promoted the success rate of operation greatly.
7. The detachable connecting rod mechanism of the utility model can adjust the rod length through the driving of the electric push rod, can adjust the length through the 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 utility model provides a can dismantle electric putter's design, pass through bolted connection at linear push rod's both ends replacing connecting device earlier, keep both ends point position unchangeable, demolish electric putter again, use the screw rod device that replaces to replace.
Drawings
Fig. 1 is a schematic view of the whole usage state of the digital adjustable external skeletal orthopedic fixation frame with a detachable motor of the present invention.
Fig. 2 is a schematic view of the whole using state of the electric putter of the present invention.
Fig. 3 is a schematic view of the whole usage 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 type fixing ring of the present invention.
Fig. 5 is a schematic structural view of the plug-type connecting member in the combined type fixing ring of the present invention.
Fig. 6 is a schematic structural view of the sleeve-type connecting member in the combined fixing ring of the present invention.
Fig. 7 is a schematic view of the whole structure of the stepless adjusting needle threading clamp with steel needles.
Fig. 8 is a schematic view of the whole structure of the stepless adjustable needle-threading clamp of the present invention without a steel needle.
Fig. 9 is a schematic structural view of the screw rod in the stepless adjusting needle threading clamp of the present invention.
Fig. 10 is a schematic structural view of a sliding ring in the stepless adjusting needle threading clamp of the present invention.
Fig. 11 is a schematic structural view of a steel needle sleeve in the stepless adjusting needle threading clamp of the present invention.
Fig. 12 is a schematic structural view of the detachable link mechanism of the present invention.
Fig. 13 is a schematic structural view of the screw-type connecting rod of the present invention.
In the figure, 1-combined type fixed ring, 2-detachable type 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-sleeve connecting hole, 19-steel needle, 20-bolt hole, 21-locking hole, 22-bulge, 23-linear groove, 24-steel needle up and down stepless adjustment device, 25-steel needle guide locking device, 26-fixing nut, 27-lower fastening nut, 27-stepless adjustment needle threading clamp, 28-steel needle sleeve, 29-locking bolt, 30-screw rod, 31-adjusting end, 32-fixing end, 33-upper fixing nut, 34-sliding ring, 35-bidirectional connecting piece, 36-electric push rod, 37-coupler, 38-upper fixing ring, 39-fine adjusting connecting piece, 40-spiral connecting rod, 41-universal joint, 42-lower fixing ring, 43-pin shaft type connecting piece, 44-sleeve connecting piece, 45-spiral rod, 46-spiral sleeve and 47-spiral cap.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 to 3, a digital adjustable skeletal orthopedic external fixation frame with a detachable motor comprises a combined type fixing ring 1, a detachable link mechanism 2 and a stepless adjustable needle threading clamp 3, wherein the combined type fixing ring 1 is provided with a pair of upper and lower symmetrical arrangement, the combined type fixing ring 1 is connected through six detachable link mechanisms 2, the stepless adjustable needle threading clamp 3 for clamping a steel needle 19 is fixed on the combined type fixing ring 1, and after a plurality of stepless adjustable needle threading clamps 3 are fixed on the combined type fixing ring 1, the steel needle 19 on the stepless adjustable needle threading clamp 3 is utilized to penetrate into the skeleton of a patient to fix the digital adjustable skeletal orthopedic external fixation frame with a detachable motor.
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. 12 to 13, 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 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 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 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 sleeve connecting piece 44 and the pin shaft type connecting piece 43 is determined by the position of the bolt passing through the fixing hole, and the lower end of the pin shaft type connecting piece 43 is ensured to be connected with the fine adjustment type connecting piece 39 through the bolt during positioning;
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.
As shown in fig. 7 to 11, the stepless adjustment needle threading clamp 3 includes a steel needle up-down stepless adjustment device 24, a steel needle guide locking device 25 and a fixing nut 26, the steel needle up-down stepless adjustment device 24 includes a screw rod 30, an upper fastening nut 33, a lower fastening nut 27 and a sliding ring 34, the screw rod 30 includes an adjustment end 31 and a fixing end 32, the adjustment end 31 is fixed above the fixing end 32, the adjustment end 31 is fully provided with threads, two through linear grooves 23 parallel to the axial line of the screw rod 30 are formed on the adjustment end 31 at intervals of 90 degrees, the sliding ring 34 is sleeved on the adjustment end 31 of the screw rod 30, the internal threads of the upper fastening nut 33 and the lower fastening nut 27 are connected with the threads on the adjustment end 31 of the screw rod 30 in a matching manner, and the upper and lower ends of the sliding ring 34 are fixed in the middle of the adjustment end 31 of the screw rod 30 through the upper fastening nut; 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 are connected at an interval of 90 degrees; the steel needle guiding and 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 penetrates through a sleeve connecting hole 18 on a sliding ring 34 and a linear groove 23 on an adjusting end 31 of a screw rod 30, a locking hole 21 is arranged on the side surface of the steel needle sleeve 28, and the locking bolt 29 penetrates 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 to tightly press the steel needle 19 in the steel needle sleeve 28; the fixed end 32 of the screw 30 is fixed to an external Ilizarov external fixator or taylor framework by a fixing nut 26.
The outer side surface 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 surface of the steel needle sleeve 28 is in clearance fit with one linear groove 23 on the adjusting end 31 of the screw rod 30. The width of the linear groove 23 on the adjusting end 31 of the screw 30 is slightly larger 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 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. The bolt hole 20 of the sliding ring 34 is provided with threads matched with the locking bolt 29.
After the doctor confirms steel needle 19 mounted position, through computational analysis, confirm the mounted position of anchor clamps, adjust and pass through after the angle fixed nut 26 is installed on solid fixed ring of combination formula, through the position about stepless adjusting device 24 regulation steel needle 19 about the steel needle, after confirming the position through last fastening nut 33 with fastening nut 27 screws up fixedly down, and steel needle 19 penetrates patient's fracture suitable position through steel needle sleeve 28 and installs, and steel needle sleeve 28 provides the guide effect of steel needle installation, through the position around steel needle direction locking device 25 adjusts, passes through after confirming the position locking bolt 29 screws up fixedly.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right 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 a stepless adjustment needle threading clamp (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 clamp (3) for clamping a steel needle (19) is fixed on the combined type fixing ring (1);
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 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 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; 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 connecting piece (44) and the pin shaft type connecting piece (43) is determined by the position of a bolt passing through the fixing hole, and the lower end of the pin shaft type connecting piece (43) is ensured to be connected with the fine adjustment type connecting piece (39) through the bolt during positioning;
the stepless adjustment needle threading clamp (3) comprises a steel needle upper and lower stepless adjustment device (24), a steel needle guide locking device (25) and a fixing nut (26), the steel needle upper and lower stepless adjustment 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 an adjustment end (31) and a fixing end (32), the adjustment end (31) is fixed above the fixing end (32), the adjustment end (31) is fully distributed with threads, two straight line grooves (23) which are parallel to the axial lead of the screw rod (30) and penetrate through are formed in the adjustment end (31) at intervals of 90 degrees, the sliding ring (34) is sleeved at the adjustment end (31) of the screw rod (30), and the internal threads of the upper fastening nut (33) and the lower fastening nut (27) are in fit connection with the threads on the adjustment end (31) of the screw rod (30), the upper end and the lower end of the sliding ring (34) are fixed in the middle of the adjusting end (31) of the screw rod (30) through an upper fastening nut (33) and a 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 are connected at an interval of 90 degrees; the steel needle guiding and locking device (25) comprises a steel needle sleeve (28) and a locking bolt (29), a bulge (22) is arranged at one end of the steel needle sleeve (28), the steel needle sleeve (28) penetrates through a sleeve connecting hole (18) in a sliding ring (34) and a linear groove (23) in an adjusting end (31) of a screw rod (30), a locking hole (21) is formed in the side face of the steel needle sleeve (28), and the locking bolt (29) penetrates through a bolt hole (20) in the sliding ring (34) and the locking hole (21) in the side face of the steel needle sleeve (28) to tightly push the steel needle (19) in the steel needle sleeve (28); the fixed end (32) of the screw rod (30) is fixed on an external Ilizarov external fixator or a Taylor framework through a fixed nut (26).
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 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 an adjusting end (31) of the screw rod (30).
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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920498442.1U CN209864003U (en) | 2019-04-14 | 2019-04-14 | Digital adjustable bone orthopedic external fixing frame with detachable motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920498442.1U CN209864003U (en) | 2019-04-14 | 2019-04-14 | Digital adjustable bone orthopedic external fixing frame with detachable motor |
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| CN209864003U true CN209864003U (en) | 2019-12-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111743616A (en) * | 2020-05-28 | 2020-10-09 | 衢州职业技术学院 | Fracture reduction mechanism for lower limb long bone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111743616A (en) * | 2020-05-28 | 2020-10-09 | 衢州职业技术学院 | Fracture reduction mechanism for lower limb long bone |
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