CN108742977B

CN108742977B - Orthopedics traction device

Info

Publication number: CN108742977B
Application number: CN201810447667.4A
Authority: CN
Inventors: 段红杰; 刘胜军; 白贺锋
Original assignee: Beijing Guoxietang Technology Development Co ltd
Current assignee: Beijing Guoxietang Technology Development Co ltd
Priority date: 2018-05-11
Filing date: 2018-05-11
Publication date: 2020-09-11
Anticipated expiration: 2038-05-11
Also published as: CN108742977A

Abstract

The invention provides an orthopedic traction device, and belongs to the technical field of medical instruments. Including being used for carrying out towed tractor, the traction frame that is used for installing the tractor to the target location, locate the bracing piece of traction frame below, be used for installing the bracing piece at the installation component on the operation table, be used for adjusting the locking adjusting part of bracing piece and operation table's horizontal distance, locking adjusting part fixes on the installation component, and the traction frame is through a rotating assembly swivelling joint on the support frame. Compared with the prior art, the orthopedic traction device provided by the invention has the advantages that the traction stroke of the traction device is obviously improved, the traction position and the traction angle of the traction device can be adjusted according to clinical requirements, the application range of the traction device is greatly enlarged, the dismounting and the carrying are convenient, and the orthopedic traction device is suitable for being popularized in clinical medicine.

Description

Orthopedics traction device

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to an orthopedic traction device.

Background

Bone distraction is one of the methods used in orthopedics for reduction, fixation of fractures and many other orthopedic disorders. The existing orthopedic traction device mainly comprises a Thomas traction frame and a Brownian traction frame, wherein the Thomas traction frame needs a special traction bed and is large in size and high in manufacturing cost, the Brownian traction frame does not need the traction bed, but the length and the angle of the Brownian traction frame cannot be adjusted, the traction angle often cannot reach the optimal state, the traction requirements of a patient in multiple positions such as lateral lying, supine position, prone position, lateral lying position, lithotomy position and beach position cannot be met, the traction strokes of the two traction devices are small, and various clinical traction requirements cannot be met.

Disclosure of Invention

The invention provides an orthopedic traction device, and aims to solve the technical problems that the traction device in the prior art is short in traction stroke and narrow in application range.

In order to achieve the aim, the invention provides an orthopedic traction device, which comprises a tractor, a traction frame, a supporting rod, a mounting assembly and a locking and adjusting assembly, wherein the tractor is used for drawing a limb at a target position, the traction frame is used for mounting the tractor and driving the tractor to move back and forth, the supporting rod is arranged below the traction frame and is used for adjusting the height position of the traction frame relative to an operating table, the mounting assembly is used for mounting the supporting rod on the operating table, and the locking and adjusting assembly is used for adjusting the horizontal distance between the supporting rod and the operating table; the locking and adjusting assembly is fixed on the mounting assembly, and the traction frame is rotatably mounted on the supporting rod through the first rotating assembly.

Further, the tractor comprises a mounting arm fixedly connected with the traction frame, two connecting blocks arranged on the mounting arm and capable of sliding along the length direction of the mounting arm, two traction arms vertically arranged with the mounting arm, and a fixing mechanism arranged at the end part of each traction arm and used for mounting a traction needle; the draft arm sets up in the connecting block and along the perpendicular to installation arm sliding direction with connecting block sliding fit, still be provided with on the connecting block and be used for fixed locking installation arm and the fitting pin of draft arm.

Furthermore, the traction frame comprises a traction assembly for mounting the tractor, a traction rod for driving the traction assembly to move back and forth, and a guide assembly sleeved outside the traction rod and used for guiding and limiting; the traction assembly is rotatably mounted relative to the traction rod through a second rotating assembly, and a first fastening handle used for fastening the traction rod is arranged on the guide assembly.

Further, the traction assembly comprises a shaft lug for fixing the tractor, a sleeve arranged at the end part of the shaft lug for fixing the shaft lug, a first lead screw arranged in the sleeve for driving the sleeve to move along the axial direction of the sleeve, and a fixed seat in threaded fit with the first lead screw and connected with the second rotating assembly; the fixing seat is located inside the sleeve, a groove used for enabling the sleeve to move relative to the fixing seat along the axial direction of the sleeve is formed in the sleeve, and the traction handle is arranged at the shaft end of the sleeve and used for driving the first lead screw to rotate.

Further, the second rotating assembly comprises a fixed shaft fixedly connected with the traction rod, a rotating shaft barrel sleeved outside the fixed shaft and used for rotating around the fixed shaft, and a first outer shaft sleeve in threaded fit with the fixed shaft and used for driving the fixed shaft to move along the axis direction of the fixed shaft; and end face gears which can be meshed with each other are arranged at one end of the fixed shaft, which is far away from the traction rod, and on the inner cylinder wall of the rotating shaft cylinder, one end of the rotating shaft cylinder, which is far away from the traction rod, penetrates through the open groove to be fixedly connected with the fixed seat.

Furthermore, the guide assembly comprises a guide block for guiding and limiting, a through hole for the traction rod to pass through is formed in the guide block, and a plurality of rollers for supporting the traction rod and guiding the traction rod to move back and forth are arranged in the through hole.

Further, the first rotating assembly comprises an upper spiral shaft sleeve and a lower spiral shaft sleeve which are arranged above the supporting rod and can be meshed with each other, and a second outer shaft sleeve which is in threaded fit with the lower spiral shaft sleeve is sleeved outside the lower spiral shaft sleeve; the lower spiral shaft sleeve and the upper spiral shaft sleeve are meshed, a guide post is arranged on the end face of the lower spiral shaft sleeve and the end face of the upper spiral shaft sleeve, the guide post penetrates through the upper spiral shaft sleeve, the upper spiral shaft sleeve can rotate around the guide post, springs are arranged on the peripheries of the guide post, when the upper spiral shaft sleeve is meshed with the lower spiral shaft sleeve, the springs are in a compressed state, the lower spiral shaft sleeve is connected with the supporting rod, and the upper spiral shaft sleeve is connected with the guide assembly.

Further, the installation component including be used for connecting the operation table with locking adjusting component's intermediate junction spare and be used for with the intermediate junction spare is fixed the first locking double-screw bolt on the operation table, be equipped with on the intermediate junction spare and be used for fixing locking adjusting component's connecting seat, be equipped with on the intermediate junction spare be used for with the locating lever of intermediate junction spare joint on the operation table.

Furthermore, the locking and adjusting assembly comprises a locking sleeve which is sleeved outside the supporting rod and used for locking the supporting rod in the height direction, and an adjusting rod which is fixed together with the mounting assembly and used for adjusting the horizontal distance between the supporting rod and the operating bed; the locking sleeve is provided with a through hole for the adjusting rod to pass through, and the locking sleeve is provided with a second locking stud for fixing the locking sleeve on the adjusting rod.

Furthermore, locking adjusting component with be equipped with between the installation component and be used for the restriction bracing piece is for the first fluted disc and the second fluted disc of intermeshing of operation table rotation angle, first fluted disc passes through first connecting rod to be installed on the installation component, the second fluted disc passes through the second connecting rod to be installed on adjusting the pole.

Compared with the prior art, the orthopedic traction device has the advantages that the traction device is fixed on the traction frame and drives the traction frame to move back and forth to realize traction of the traction device on the target position, the traction device comprises but is not limited to traction bows and traction shoes, and the traction device can be suitable for different clinical working conditions by replacing traction devices of different specifications and types. A supporting rod used for adjusting the height position of the traction frame relative to the operating bed is arranged below the traction frame, the supporting rod is installed on the operating bed through an installation assembly, a locking and adjusting assembly is arranged at one end of the installation assembly, the relative position of the supporting rod relative to the operating bed can be adjusted in the height direction and the horizontal direction through the locking and adjusting assembly, the relative position of the traction frame and the tractor relative to the operating bed is further adjusted, and the traction stroke of the traction device is greatly increased; in addition, the traction frame is arranged on the support frame through the first rotating assembly, and the relative angle between the traction frame and the tractor and the operating table can be adjusted through the first rotating assembly. In conclusion, the traction position and the traction angle of the tractor relative to the operating table can be adjusted according to clinical requirements, and the tractor is suitable for various clinical working conditions. Simultaneously, can be with the quick firm installation of bracing piece to the operating table through setting up the installation component, it is convenient to dismantle, realizes quick installation. The orthopedic traction device provided by the invention obviously improves the traction stroke of the traction device, can adjust the traction position and the traction angle of the terminal tractor according to clinical requirements, greatly increases the application range of the traction device, is convenient to disassemble and assemble and carry, and is suitable for popularization in clinical medicine.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an orthopedic traction device provided in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a retractor according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a traction frame according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a tow assembly according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a second rotating assembly according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a guide assembly according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a first rotating assembly according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a supporting rod according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a mounting assembly according to an embodiment of the present invention.

FIG. 10 is a schematic structural view of a locking adjustment assembly provided by an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a limiting assembly according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a swing assembly according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a tractor; 101-a mounting arm; 1011-mounting holes; 102-a traction arm; 103-connecting block; 104-locking pins; 105-a securing mechanism; 2-a traction frame; 201-a traction assembly; 2011-shaft ear; 2012-sleeve; 2013-a first lead screw; 2014-fixed seat; 2015-slotting; 2016-rotation axis; 2017-a second fastening handle; 202-a drawbar; 203-a guide assembly; 2031-a guide block; 2032-rollers; 2033-a via; 2033-a wear plate; 2034-side plate; 204-a second rotating assembly; 2041-a fixed shaft; 2042-rotating shaft cylinder; 2043-a first outer sleeve; 2044-a first face gear; 2045-a third fastening handle; 205-a first fastening handle; 3-supporting rods; 301-outer columns; 302-inner upright post; 303-a second lead screw; 304-a drive handle; 305-non-metallic guide strips; 4-mounting the assembly; 401-intermediate connection plate; 402-a first locking stud; 403-fixing seat; 404-a positioning rod; 4041-limit post; 5-a locking assembly; 501-a locking sleeve; 502-adjusting lever; 503-a second locking stud; 504-eccentric bushing; 505-a third locking stud; 6-a first rotating assembly; 601-upper spiral sleeve; 602-lower spiral sleeve; 603-a second outer sleeve; 604-a fourth fastening handle; 605-a guide post; 606-a spring; 607-a second face gear; 7-a limiting component; 701-a first fluted disc; 702-a second toothed disc; 703-a first fastening screw; 704-a fastening nut; 705-first connecting rod; 706-a second connecting rod; 8-a traction handle; 9-swinging and rotating the plate; 901-adjusting the through groove; 902-a second fastening screw; and 10, fixing a plate.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 and 3 together, the orthopedic traction device provided by the present invention will now be described. The direction A is the height moving direction of a supporting rod in the orthopedic traction device, the direction C is the adjusting direction of a locking adjusting device in the orthopedic traction device, the direction A is vertical to the direction C, and the direction B is vertical to the direction A and the direction C. Orthopedic traction device is including being used for carrying out towed tractor 1 to the limbs of target location, a traction frame 2 that is used for installing tractor 1 and drive tractor 1 back-and-forth movement, locate traction frame 2 below and be used for adjusting traction frame 2 and for the bracing piece 3 of the high position of operation table, a mounting assembly 4 for installing bracing piece 3 on the operation table, a locking adjusting component 5 for adjusting the horizontal distance of bracing piece 3 and operation table, locking adjusting component 5 is fixed on mounting assembly 4, traction frame 2 is rotatory on support frame 3 through first rotating component 6.

The traction apparatus 1 includes, but is not limited to, a traction bow and traction shoes, the traction bow is used for fixing a traction needle and traction a target position, the traction shoes can be directly fixed on a traction frame 2 for traction work, the traction frame 2 is used for installing the traction apparatus 1 and driving the traction apparatus 1 to move back and forth, a support rod 3 is arranged below the traction frame 2, the support rod 3 is used for supporting the traction frame 2 and adjusting the height position of the traction frame 2 relative to the operating table, and the support rod 3 can be a square rod, a round rod or a special-shaped rod. In the first embodiment, the support rod 3 is a round rod, the locking adjusting component 5 is located below the support rod 3, the locking adjusting component 5 is sleeved on the periphery of the support rod 3, the support rod 3 can move in the locking adjusting component 5 along the height direction a, and the traction frame 2 is adjusted relative to the height of the operating table. In the second embodiment, the support rod 3 can adopt the inner rod and the outer rod which are sleeved, and the support rod 3 can stretch out and draw back along the height direction A by adopting the ball screw, so that the traction frame 2 can be adjusted relative to the height of the operating table.

The traction frame 2 is installed on the support rod 3 through the first rotating assembly 6, the traction frame 2 can rotate relative to the support rod 3, and the rotating shaft of the traction frame 2 can be parallel to the A direction and the B direction. In this embodiment, the axis of rotation of traction frame 2 is on a parallel with A to, and traction frame 2 can be 360 degrees rotations on the plane that is on a parallel with the operation table face for bracing piece 2 this moment, realizes pulling angle's regulation.

Further, referring to fig. 1 and 8, as a specific embodiment of the orthopedic traction device provided by the present invention, the support rod 3 includes an outer upright 301 and an inner upright 302 sleeved with each other, and a second screw 303 for driving the inner upright 302 to move up and down along the outer upright 301; a non-metal guide strip 304 for guiding and preventing wear is arranged inside the outer upright column 301, and a driving handle 304 is arranged at the rod end of the second lead screw 303.

Outer column 301 and interior stand 302 are established together, and second lead screw 303 is the ball, and the one end of 403 of second lead screw is fixed on outer column 301, and the other end passes through fixation nut to be connected with interior stand 302, then rotates second lead screw 303 and can realize that interior stand 302 reciprocates for outer column 301, and this axle head of second lead screw 303 has drive handle 304, convenient operation. Meanwhile, the inner wall of the outer upright column 301 is provided with the nonmetal guide strip 305 for guiding and preventing abrasion, so that the inner upright column 302 can be effectively prevented from shaking or scratching in the outer upright column 301. Through the design of the second lead screw connected with the outer stand column and the inner stand column, the inner stand column can move up and down relative to the outer stand column, the length of the supporting rod is adjusted, and then the height of the traction frame relative to the operating table is adjusted.

Further, referring to fig. 2, as a specific embodiment of the orthopedic traction device provided by the present invention, the retractor 2 includes a mounting arm 101 for fixing with a traction assembly 201, two connecting blocks 103 disposed on the mounting arm 101 and capable of sliding along the length direction of the mounting arm 101, two traction arms 102 disposed perpendicular to the mounting arm 101, and a fixing mechanism 105 disposed at the end of the traction arms 102 for mounting a traction needle, wherein the traction arms 102 are disposed in the connecting blocks 103 and slidably engaged with the connecting blocks 103 along the direction perpendicular to the sliding direction of the mounting arm 101, the connecting blocks 103 are further provided with locking pins 104 for fixing and locking the mounting arm 101 and the traction arms 102, and the mounting arm 101 is provided with a mounting hole 1011. In the structure, the distance between the two traction arms 102 can be adjusted along the length direction of the installation arm 101, the distance between the installation arm 101 and the traction needle can also be adjusted along the length direction of the traction arm 102, the installation arm 101 and the traction arm 102 are fixed through the locking pin 104 arranged on the connecting block 103 after the adjustment is finished, the traction bow can be adjusted on a plurality of sizes by arranging the connecting block 103, the traction bow can be correspondingly adjusted according to the body conditions of different patients, and the traction bow is more convenient and simpler to use.

Further, referring to fig. 3, as a specific embodiment of the orthopedic traction device provided by the present invention, the direction D is a moving direction of the traction rod, the traction frame 2 includes a traction assembly 201 for mounting the traction device, a traction rod 202 for driving the traction assembly 201 to move back and forth, a guiding assembly 203 sleeved outside the traction rod 202 for guiding and limiting, the traction assembly 201 is rotatably mounted relative to the traction rod 202 through a second rotating assembly 204, and the guiding assembly 203 is provided with a first fastening handle 205 for fastening the traction rod 202.

In practical application, the traction assembly 201 is installed at the end of the traction rod 202, the other end of the traction rod 202 penetrates through the guide assembly 203, and the traction rod 202 can be pushed by an operator to move back and forth, so that the back and forth movement of the traction assembly 201 is realized. The traction rod 202 can be a square rod, a round rod or a rectangular rod, in the embodiment, the traction rod 202 is made of square steel, the traction assembly 201 is installed on one side face of the traction rod 202, the traction rod 202 can rotate in the guide assembly 203 according to four faces of the square steel, installation of the traction assembly 201 in four directions is achieved, and the square steel is more convenient for the first fastening handle 205 to fasten the traction rod 202.

The towing assembly 201 is mounted on the tow bar 202 by a second rotating assembly 204, the towing assembly 201 is rotatable relative to the tow bar 202, and the rotation axis of the towing assembly 201 may be perpendicular to the axis of the tow bar 1 or parallel to the axis of the tow bar 202. In this embodiment, the rotation axis of the traction assembly 201 is perpendicular to the axis of the traction rod 202, and thus the traction assembly 201 can be installed in parallel with respect to the traction rod 202. The traction frame can be fixed at a target position by an operator through the supporting rod and the mounting assembly, the traction assembly can move along the axis direction of the traction rod by a large stroke which can reach 1200mm by moving the traction rod, namely, the degree of freedom of the tractor along the direction of the traction rod is increased, and the distance of the traction assembly relative to the supporting rod along the axis direction of the traction rod can be adjusted. In addition, the second rotating assembly is arranged to rotatably install the traction assembly on the traction rod, so that the traction assembly can rotate relative to the traction rod, the installation direction of the traction assembly relative to the traction rod is set according to requirements, and then multiple installation directions of the tractor are achieved.

Further, referring to fig. 4, as a specific embodiment of the orthopedic traction device provided by the present invention, the traction assembly 201 includes a shaft lug 2011 for mounting the traction device 1, a sleeve 2012 located at an end of the shaft lug 2011 for fixing the shaft lug 2011, a first lead screw 2013 located inside the sleeve 2012 for driving the sleeve 2012 to move back and forth, and a fixing seat 2014 threadedly engaged with the first lead screw 2013 and connected with the second rotation assembly 204; the fixed seat 2014 is located inside the sleeve 2012, a slot 2015 used for enabling the sleeve 2012 to move back and forth relative to the fixed seat 2014 is arranged on the sleeve 2012, and the traction handle 8 is arranged at the shaft end of the sleeve 2012 and used for driving the first lead screw 2013 to rotate.

First lead screw 2013 is ball screw, fixing base 2014 is equipped with the screw thread through-hole, first lead screw 2013 runs through the screw thread through-hole and is in screw-thread fit with fixing base 2014, it can realize the relative movement of first lead screw 2013 and fixing base 2014 to drive first lead screw 2013 to rotate, first lead screw 2013 is fixed on sleeve 2012, fixing base 2014 and second rotating component 204 fixed connection, fixing base 2014 is located inside sleeve 2012, be equipped with fluting 2015 on sleeve 2012, then rotatory traction handle 8, can drive sleeve 2012 and move back and forth for second rotating component 204, realize promptly that traction component 201 moves back and forth for traction bar 202. Preferably, a dial for marking the distance of relative movement of the tow assembly 201 with respect to the tow bar 202 may be provided at the end of the collet 2012 adjacent the tow handle 8. The design of this structure can realize the fine setting of tractor mounted position, and in practical application, can send near target position with the subassembly that draws through the traction lever, then rotate the handle that draws and carry out accurate adjustment and traction operation to the position of drawing the subassembly, use and more press close to clinical operating condition.

Further, referring to fig. 4, as a specific embodiment of the orthopedic traction device provided by the present invention, a rotating shaft 2016 rotatably engaged with the sleeve 2012 is disposed at one end of the shaft lug 2011 located inside the sleeve 2012, and a second fastening handle 2017 for fastening the rotating shaft 2016 is disposed on the sleeve 2012. The rotating shaft 2016 is fixed at one end of the sleeve 2012 and is located inside the sleeve 2012, and the second fastening handle 2017 comprises a handle and a stud fixed on the handle, and the stud is in threaded fit with a fastening nut fixed on the sleeve 2012, so that the second fastening handle 2017 can be screwed and unscrewed. Preferably, the periphery of the position, corresponding to the stud, of the rotating shaft is provided with a groove matched with the size of the stud, and when the second fastening handle is screwed, the stud is inserted into the groove, so that fastening is more reliable. The setting of this structure can realize the relative sleeve rotation of journal stirrup installation and fixed for the fixed position of tractor is more diversified.

Further, referring to fig. 5, as an embodiment of the orthopedic traction device provided in the present invention, the second rotating assembly 204 includes a fixed shaft 2041 fixedly connected to the traction rod 202, a rotating shaft cylinder 2042 sleeved outside the fixed shaft 2041 and configured to rotate around the fixed shaft 2041, and a first outer shaft sleeve 2043 in threaded engagement with the fixed shaft 2041 and configured to drive the fixed shaft 2041 to move along the axis direction of the fixed shaft 2041; a first end face gear 2044 which can be meshed with each other is arranged on one end of the fixed shaft 2041 far away from the traction rod and on the inner wall of the rotating shaft cylinder 2042, one end of the rotating shaft cylinder 2042 far away from the traction rod 202 is fixedly connected with the fixed seat 2014, and a third fastening handle 2045 which is used for driving the first outer shaft sleeve 2043 to rotate is circumferentially arranged on the first outer shaft sleeve 2043.

The fixed shaft 2041 is fixed on the traction rod 202, the inner wall of the rotating shaft cylinder 2042 is in clearance fit with the fixed shaft 2041, the rotating shaft cylinder 2042 can rotate around the fixed shaft 2041, one end of the rotating shaft cylinder 2042, which is far away from the traction rod 202, is fixedly connected with the fixed seat 2014, the fixed seat 2014 is in threaded fit with the first lead screw 2013, and then the rotating shaft cylinder 2042 rotates around the fixed shaft 2041, so that the traction assembly 201 rotates around the traction rod 202. The end of the fixed shaft 2041 far away from the traction rod 202 is conical, and the rotating shaft cylinder 2042 is provided with a conical part in a position matched with the rotating shaft cylinder in a rotating manner, so that the positioning can be conveniently carried out, and the rotating shaft cylinder 2042 is prevented from shaking on the fixed shaft 2041.

The fixed shaft 2041 is a stepped shaft, the first shaft portion of the fixed shaft 2041 near the traction rod 202 has a smaller shaft diameter, the first outer shaft sleeve 2043 is installed at the stepped position of the fixed shaft 2041, and the first outer shaft sleeve 2043 is rotatably hinged to the first shaft portion and is in threaded fit with the second shaft portion with a larger shaft diameter, so that the first outer shaft sleeve 2043 can move along the axis direction of the fixed shaft 2041 by rotating the first outer shaft sleeve 2043, and the first outer shaft sleeve 2043 and the fixed shaft 2041 are fixed in the axis direction of the fixed shaft, so that the first outer shaft sleeve 2043 can drive the fixed shaft 2041 to approach the rotating shaft cylinder 2042 by rotating the first outer. The end of the fixed shaft 2041 far away from the traction rod 202 and the inner wall of the rotating shaft cylinder 2042 are provided with first end face gears 2044 which can be meshed with each other, and the fixed shaft 2041 is close to the rotating shaft cylinder 2042 so that the first end face gears 2044 are meshed with each other, so that the rotating shaft cylinder 2042 and the fixed shaft 2041 are locked. The first outer shaft sleeve 2043 is circumferentially provided with three third fastening handles 2045 for driving the first outer shaft sleeve to rotate, the number of the third fastening handles 2045 is three, and the third fastening handles are uniformly distributed on the outer circumference of the first outer shaft sleeve 2043, so that the operation is convenient. The structure can realize the rotary installation of the traction assembly relative to the traction rod, and the design of the conical part is adopted, so that the swinging in the rotary process can be effectively avoided, the tooth meshing is stable and reliable, and the traction assembly can be reliably fixed relative to the traction rod according to the target direction.

Further, referring to fig. 6, as a specific embodiment of the orthopedic traction device provided by the present invention, the guiding assembly 203 comprises a guiding block 2031 for guiding and limiting, a through hole for passing the traction rod 202 is provided on the guiding block 2031, a plurality of rollers 2032 for supporting the traction rod 202 and guiding the traction rod 202 to move upward in the traction rod moving direction a are provided inside the through hole, and the plurality of rollers 2032 are disposed up and down in the through hole.

The guide block 2031 may be a rectangular block, a square block, or a special-shaped block, in this embodiment, the guide block 2031 is a rectangular block, a through hole for the drawbar 202 to pass through is formed in the guide block 2031, and the size of the through hole is slightly larger than that of the drawbar 202, so that the drawbar 202 can slide along the axial direction of the through hole of the guide block 2031, and the travel of the drawbar 202 in the direction a is realized. The rollers 2032 are arranged inside the through holes, the rollers 2032 are multiple, in this embodiment, the rollers 2032 are 4, the 4 rollers 2032 are arranged in an up-down symmetrical manner, the distance between the rollers 2032 arranged in the up-down symmetrical manner is the height dimension of the draw bar 202, the draw bar 202 is preferably made of square steel, the through holes are also matched into square holes, and the draw bar 202 can rotate in the guide block 2031 according to four surfaces of the square steel, so that the installation in four directions is realized. The rollers 2032 are disposed vertically symmetrically to each other as close as possible to the edge of the guide block 2031 in the direction of the through hole. The design of gyro wheel can make things convenient for the traction lever to move in the guide block, and also can not block dead if the traction lever takes place slight deformation, makes things convenient for operating personnel to carry out the traction operation.

Further, referring to fig. 6, as an embodiment of the orthopedic traction device provided by the present invention, a wear plate 2033 fixedly connected to the first fastening handle 205 and used for preventing the traction rod from being scratched is disposed inside the through hole.

The first fastening handle 205 is located at one side of the square guide block 2031, and the first fastening handle 205 is located at the upper portion of the guide block 2031. The first fastening handle 205 includes an operating handle and a screw rod for being screwed with the guide block 2031, and when the operating handle is rotated, the screw rod presses the traction rod 202 located inside the guide block 2031 to complete the fixing of the traction rod 202, and the traction rod 202 is easily scratched when the screw rod presses the traction rod 202. In this embodiment, the wear-resistant plate 2033 is arranged at the contact end of the screw rod and the drawbar 202, and the wear-resistant plate 2033 is preferably made of copper, so that the screw rod can be effectively prevented from scratching the drawbar 202; preferably, an anti-wear side plate 2034 is provided on the inner side wall of the through hole. The wear plate 2033 is disposed to effectively prevent the first fastening handle 205 from scratching the drawbar 202, and the wear plate 2033 can be used as a wearing part to be replaced periodically.

Further, referring to fig. 3 and 7, as an embodiment of the orthopedic traction device provided by the present invention, the first rotating assembly 6 includes an upper spiral sleeve 601 and a lower spiral sleeve 602 which are engaged with each other in a tooth manner, and a second outer sleeve 603 which is sleeved on the outer portion of the lower spiral sleeve 602 and is in threaded engagement with the lower spiral sleeve 602; a guide post 605 is arranged on the end surface of the lower spiral shaft sleeve 602 engaged with the upper spiral shaft sleeve 601, the guide post 605 penetrates through the upper spiral shaft sleeve 601, and the upper spiral shaft sleeve 601 can rotate around the guide post 605; the guide post 605 is provided with a spring 606 around the circumference, and when the upper spiral shaft sleeve 601 is engaged with the lower spiral shaft sleeve 602, the spring 606 is in a compressed state; the upper swivel 601 is connected to the guide assembly 203 of the traction frame 2, and the lower swivel 602 is connected to the support bar 3.

The upper end of the lower spiral shaft sleeve 602 is provided with a second end face gear 607, the lower end of the upper spiral shaft sleeve 601 is provided with a circular groove, the groove is provided with a second end face gear 607 capable of being meshed with the lower spiral shaft sleeve 602, the lower spiral shaft sleeve 602 is provided with a guide post 605 penetrating through the upper spiral shaft sleeve 601, the upper spiral shaft sleeve 601 is connected with the support rod 3, the lower spiral shaft sleeve 602 is connected with the guide component 203, when the upper spiral shaft sleeve 601 and the lower spiral shaft sleeve 602 are separated, the upper spiral shaft sleeve 601 can rotate around the guide post 605, and further the guide component 203 can rotate 360 degrees in the axial direction of the support rod 3 relative to the support rod 3.

The outer wall of the lower spiral shaft sleeve 602 is provided with threads and is in threaded connection with a second outer shaft sleeve 603 positioned on the periphery of the lower spiral shaft sleeve 602, the second outer shaft sleeve 603 is also sleeved on the periphery of the upper spiral shaft sleeve 601, the upper spiral shaft sleeve 601 can rotate around a guide post 605 in the second outer shaft sleeve 603, the second outer shaft sleeve 603 is provided with an end cover, it is possible to prevent the upper swivel nut 601 from being escaped from the second outer swivel nut 603, to rotate the second outer swivel nut 603, the lower swivel nut 602 can be moved upward, close to the upper swivel nut 601, so that the second face gears 607 of the upper and lower swivel nuts are meshed together, the upper swivel nut 601 can no longer rotate relative to the guide post 605 and tightening the second outer swivel nut 603 squeezes the swivel nuts engaged together to the end caps to effect locking of the upper swivel nut 601 and the lower swivel nut 602 to effect locking of the guide assembly 203 and the support rod 3. The fourth fastening handle 604 is arranged outside the second outer shaft sleeve 603, so that the operation of an operator can be facilitated.

The guide post 605 is provided with a spring 606 around the circumference, when the upper spiral sleeve 601 is engaged with the lower spiral sleeve 602, the spring 606 is in a compressed state, the fourth fastening handle is rotated in the opposite direction, the engaged spiral sleeve can be separated from the end cover, the compressed spring 606 bounces to separate the upper spiral sleeve 601 from the lower spiral sleeve 602, and at this time, the upper spiral sleeve 601 can rotate around the guide post 605. Through the design of this structure, the realization that can be convenient realizes the rotation and the locking of direction subassembly 203 and bracing piece 3.

Further, referring to fig. 1 and fig. 9, as a specific embodiment of the orthopedic traction device provided by the present invention, the mounting assembly 4 includes a middle connector 401 for connecting the operating table and the locking adjustment assembly 5, and a first locking stud 402 for fixing the middle connector 401 on the operating table, the middle connector is provided with a connecting seat 403 for fixing the locking adjustment assembly 5, and the middle connector 401 is provided with a positioning rod 404 for clamping the middle connector 401 on the operating table.

Generally all be equipped with the installation ear that has U type recess on the operation table of current application, locating lever 404 is the cylinder that matches with the recess size in this embodiment, and the both ends symmetry of location 404 is equipped with spacing post 4041, then can place locating lever 404 in the recess, and the distance between spacing post 4041 and the recess matches, can avoid moving about locating lever 404, and intermediate junction spare 401 is fixed on the installation ear through first locking double-screw bolt 402. One side of the middle connecting piece 401, which is far away from the operating table, is provided with two connecting seats 403 for being connected with the locking adjusting assembly 5, the two connecting seats 403 are positioned on two sides of the middle connecting piece 401, a plurality of accessories can be fixed, the accessories include but are not limited to the locking adjusting assembly 5, the support frame 3, and a semicircular through groove is formed in the middle of the middle connecting piece 401 and used for reducing weight. This scheme can realize the quick installation of installation component 4 on the operation table, and only first locking double-screw bolt 4 does not receive external force, and difficult production is not hard up, and the design of connecting seat on installation component 4 can be so that multiple annex, and locking adjusting part fixes on installation component 4 in this embodiment, and then realizes the firm installation of annex and operation table.

Further, referring to fig. 1 and 10, as a specific embodiment of the orthopedic traction device provided by the present invention, the locking adjusting assembly 5 includes a 3 locking sleeve 501 sleeved outside the supporting rod 3 for locking the supporting rod in the height direction, and an adjusting rod 502 fixed together with the mounting assembly 4 for adjusting the horizontal distance between the supporting rod 3 and the operating table, a through hole for passing the adjusting rod 502 is formed on the locking sleeve 501, and a second locking stud 503 for fixing the locking sleeve 501 on the adjusting rod 502 is formed on the locking sleeve 501.

The locking sleeve 501 is provided with a round hole for the support rod 3 to pass through, the round hole is internally provided with an eccentric sleeve 504 which is eccentrically arranged with the round hole, a third locking stud 505 for fastening the support rod 3 is arranged on the locking sleeve 501 at a position corresponding to the eccentric sleeve 504, the support rod 3 is adjusted to a target height, then the third locking stud 505 is screwed down to extrude the eccentric sleeve 504, and then the support rod 3 is extruded and fixed on the locking adjusting component 5.

The locking adjusting assembly 5 is provided with a through hole perpendicular to the axial direction of the support rod, the axial direction of the through hole is parallel to the axial direction C, the adjusting rod 502 can move along the through hole along the axial direction C, and the adjusting rod 502 is fixed with the mounting assembly 4, so the locking sleeve 501 provided with the support rod 3 can be far away from or close to the operating table along the axial direction of the adjusting rod 502, the horizontal distance of the support rod 3 relative to the operating table is further adjusted, and after the support rod is adjusted to a target position, the second locking stud 503 is screwed down to fix the locking sleeve 501 on the adjusting rod 502.

Further, referring to fig. 1 and 11, as an embodiment of the orthopedic traction device provided by the present invention, a limiting assembly 7 is disposed below the supporting rod 3 for fixing the orthopedic traction device on an operating bed, the limiting assembly 7 includes a first toothed disc 701 and a second toothed disc 702 for engaging with each other, and a first fastening screw 703 penetrating through the first toothed disc 701 and the second toothed disc 702 for fixedly connecting the first toothed disc 701 and the second toothed disc 702, the first toothed disc 701 is mounted on the fixing seat 403 of the mounting assembly 4 through a first connecting rod 705, the second toothed disc 702 is fixed on the supporting rod 3 through a second connecting rod 706, the first connecting rod 705 and the second connecting rod 706 are fastened through the threaded connection of the fastening nut 704 and the first fastening screw 703, in practical applications, two sets of limiting assemblies 7 are disposed below the supporting rod set 4, so as to firmly connect the orthopedic traction device with the operating bed without shaking, the stability of the connection is ensured. The meshing of first fluted disc and second fluted disc realizes the fixed rather than the structure of being connected, can realize the accurate adjustment of fastening angle through rotatory arbitrary fluted disc, and among the practical application, can pull the micro-adjustment of angle, only fixed direction is firm, can not loosen and take off.

Further, referring to fig. 12, as a specific embodiment of the orthopedic traction device provided by the present invention, a fixing plate 10 and a swinging plate 9 capable of swinging around the fixing plate 10 are disposed above the upper spiral shaft housing 601, the swinging plate 9 is fixed below the guiding assembly 203, the fixing plate 10 is fixed above the upper spiral shaft housing 601, and the swinging plate 9 is provided with an adjusting through slot 901 capable of adjusting a swinging angle.

The fixed plate 10 and the swinging plate 9 are detachably connected, and the swinging plate 9 can rotate around the fixed plate on a plane perpendicular to the axis of the supporting rod. The fixing plate 10 is fixed on the upper spiral shaft sleeve 601, the guide column 605 penetrates through the rear part of the upper spiral shaft sleeve 601 and is inserted into the fixing plate 10, the fixing plate 10 is preferably semi-cylindrical, a threaded hole is arranged on the surface of the fixing plate 10 matched with the swinging plate 9, the swinging plate 9 is fixed below the guide assembly 203, the swinging plate 9 is preferably an L-shaped plate, an adjusting through groove 901 capable of adjusting the swinging angle is arranged on the surface of the swinging plate 9 matched with the fixing plate 10, a second fastening screw 902 penetrates through the adjusting through groove 801 to be in threaded fit with the fixing plate 10 to fix the swinging plate 9 on the fixing plate 10, the end part of the surface of the swinging plate 9 matched with the fixing plate 10 is a circular arc, and the height dimension of the matching surface between the swinging plate and the fixed plate 10 and the height dimension of the fixed plate 10 are equal, when the swinging plate 9 rotates around the fixed plate 10, the arc-shaped end surface contacts with the upper spiral shaft sleeve 601 for supporting the guide assembly 203, and the interference with the upper spiral shaft sleeve 601 is avoided. Through arranging the swinging plate and the fixing plate which can swing and rotate mutually, the swinging and rotating of the feeding assembly relative to the supporting rod on the plane where the axis perpendicular to the supporting rod is located is realized, the positioning position of the traction rod is increased, the positioning position of the traction assembly is further increased, and the traction assembly can better adapt to more working conditions.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. Orthopedics draw gear, its characterized in that: the traction device comprises a tractor for drawing limbs at a target position, a traction frame for mounting the tractor and driving the tractor to move back and forth, a supporting rod arranged below the traction frame and used for adjusting the height position of the traction frame relative to an operating table, a mounting assembly used for mounting the supporting rod on the operating table, and a locking adjusting assembly used for adjusting the horizontal distance between the supporting rod and the operating table; the locking adjusting assembly is fixed on the mounting assembly, and the traction frame is rotatably mounted on the supporting rod through a first rotating assembly; the traction frame comprises a traction assembly for mounting the tractor, a traction rod for driving the traction assembly to move back and forth, and a guide assembly which is sleeved outside the traction rod and used for guiding and limiting; the traction assembly is rotatably arranged relative to the traction rod through a second rotating assembly, and a first fastening handle for fastening the traction rod is arranged on the guide assembly; the traction assembly comprises a shaft lug for fixing the tractor, a sleeve arranged at the end part of the shaft lug for fixing the shaft lug, a first lead screw arranged in the sleeve for driving the sleeve to move along the axial direction of the sleeve, and a fixed seat in threaded fit with the first lead screw and connected with the second rotating assembly; the fixed seat is positioned in the sleeve, the sleeve is provided with a slot for enabling the sleeve to move relative to the fixed seat along the axial direction of the sleeve, the shaft end of the sleeve is provided with a traction handle, the traction handle is used for driving the first lead screw to rotate, the second rotating assembly comprises a fixed shaft fixedly connected with the traction rod, a rotating shaft barrel sleeved outside the fixed shaft and used for rotating around the fixed shaft, and a first outer shaft sleeve in threaded fit with the fixed shaft and used for driving the fixed shaft to move along the axial direction of the fixed shaft; and end face gears which can be meshed with each other are arranged at one end of the fixed shaft, which is far away from the traction rod, and on the inner cylinder wall of the rotating shaft cylinder, one end of the rotating shaft cylinder, which is far away from the traction rod, penetrates through the open groove to be fixedly connected with the fixed seat.

2. The orthopedic traction device of claim 1, wherein: the tractor comprises a mounting arm fixedly connected with the traction frame, two connecting blocks arranged on the mounting arm and capable of sliding along the length direction of the mounting arm, two traction arms vertically arranged with the mounting arm, and a fixing mechanism arranged at the end parts of the traction arms and used for mounting traction needles; the draft arm sets up in the connecting block and along the perpendicular to the length direction of installation arm with the connecting block sliding fit, still be provided with on the connecting block and be used for fixed locking the installation arm and the fitting pin of draft arm.

3. The orthopedic traction device of claim 1, wherein: the guide assembly comprises a guide block for guiding and limiting, a through hole for the traction rod to pass through is formed in the guide block, and a plurality of rollers for supporting the traction rod and guiding the traction rod to move back and forth are arranged in the through hole.

4. The orthopedic traction device of claim 1, wherein: the first rotating assembly comprises an upper spiral shaft sleeve and a lower spiral shaft sleeve which are arranged above the supporting rod and can be meshed with each other, and a second outer shaft sleeve which is in threaded fit with the lower spiral shaft sleeve is sleeved outside the lower spiral shaft sleeve; the lower spiral shaft sleeve and the upper spiral shaft sleeve are meshed with each other, guide posts are arranged on end faces of the lower spiral shaft sleeve and the upper spiral shaft sleeve, the guide posts penetrate through the upper spiral shaft sleeve, the upper spiral shaft sleeve can rotate around the guide posts, springs are arranged on the peripheries of the guide posts, when the upper spiral shaft sleeve is meshed with the lower spiral shaft sleeve, the springs are in a compressed state, the lower spiral shaft sleeve is connected with the supporting rod, and the upper spiral shaft sleeve is connected with the guide assembly.

5. The orthopedic traction device of claim 1, wherein: the mounting assembly comprises an intermediate connecting piece and a first locking stud, the intermediate connecting piece is used for connecting the operating bed and the locking adjusting assembly, and the first locking stud is used for fixing the intermediate connecting piece on the operating bed; the middle connecting piece is provided with a connecting seat used for fixing the locking adjusting component, and the middle connecting piece is provided with a positioning rod used for clamping the middle connecting piece on the operating table.

6. The orthopedic traction device of claim 1, wherein: the locking and adjusting assembly comprises a locking sleeve which is sleeved outside the supporting rod and used for locking the supporting rod in the height direction, and an adjusting rod which is fixed together with the mounting assembly and used for adjusting the horizontal distance between the supporting rod and the operating bed; the locking sleeve is provided with a through hole for the adjusting rod to pass through, and the locking sleeve is provided with a second locking stud for fixing the locking sleeve on the adjusting rod.

7. The orthopedic traction device of claim 6, wherein: locking adjusting part with be equipped with between the installation component and be used for the restriction bracing piece is for operation table rotation angle's intermeshing's first fluted disc and second fluted disc, first fluted disc is installed through first connecting rod on the installation component, the second fluted disc is installed through the second connecting rod on the regulation pole.