CN112244971B - Orthopedics reduction fixer - Google Patents
Orthopedics reduction fixer Download PDFInfo
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- CN112244971B CN112244971B CN202011257290.XA CN202011257290A CN112244971B CN 112244971 B CN112244971 B CN 112244971B CN 202011257290 A CN202011257290 A CN 202011257290A CN 112244971 B CN112244971 B CN 112244971B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6425—Devices extending alongside the bones to be positioned specially adapted to be fitted across a bone joint
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/645—Devices extending alongside the bones to be positioned comprising a framework
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Abstract
The application relates to an orthopedic reduction fixator, which belongs to the field of orthopedic medical instruments and comprises two fixing rings, a plurality of adjusting rods are arranged between the two fixing rings, the fixing ring is provided with a needle locking mechanism, the needle locking mechanism comprises a needle locking body and two needle locking seats, the two needle locking seats are respectively arranged on two opposite sides of the fixing ring in a sliding manner, the lock needle seat is provided with a needle hole, the lock needle body passes through the needle hole on one lock needle seat and extends out of the needle hole on the other lock needle seat, a limiting groove is annularly arranged on the outer circumferential surface of the fixing ring, an alignment seat is arranged in the limiting groove in a sliding manner, one end of the aligning seat is provided with an aligning hole, the aligning hole and the needle hole are positioned at the same horizontal height, the other end of the aligning seat is provided with an aligning rod, and one end of the lock needle seat, which is far away from the needle hole, is provided with a jack for the aligning rod to be inserted. This application has and is convenient for aim at the insertion process of lock needle body to reduce the effect of the operation process degree of difficulty.
Description
Technical Field
The application relates to the field of orthopedic medical instruments, in particular to an orthopedic reduction fixator.
Background
The treatment of fracture, when adopting the method of operation to treat, in order to ensure the contraposition of fracture end and keep its stable ability, divide into two kinds of internal fixation and external fixation. Whether internal fixation or external fixation is adopted, the fracture part of the patient needs to be subjected to actions such as traction, displacement, rotation, compression and the like, namely fracture reduction. At present, in the treatment of fracture reduction, a reduction fixator is generally adopted, and the reduction fixator mainly comprises a telescopic rod, an upper ring, a lower ring or a frame, a locking needle mechanism, a bone needle and the like, wherein the upper ring and the lower ring are connected through a single-ball joint telescopic rod or a double-ball joint telescopic rod, and then the locking needle mechanism and the bone needle are installed on the upper ring, the lower ring and the telescopic rod.
The existing Chinese patent with the publication number of CN2683049Y discloses a fracture multi-azimuth adjusting and resetting fixer, and the key points of the technical scheme are as follows: mainly comprises an upper frame, a lower frame, a bone round needle connected with a needle locker and a plurality of telescopic rods; several telescopic links are two ball joint telescopic links and upper and lower frame concreties integratively, and the ball joint of this telescopic link includes: the elastic cushion is provided with an adjustable gap with a ball body inserted into the same outer sleeve; the upper and lower press plates of several needle lockers are two opposite block bodies which can be mutually combined, and the taper lock needle screw on the upper and lower press plates is passed through the upper and lower press plates and screwed with a nut, and can tightly clamp and lock the L-shaped needle seat placed between the upper and lower press plates, and can be fixed on the upper and lower frames by means of correspondent fastener.
In view of the above-mentioned related technologies, the inventor believes that there is a defect that it is difficult to align the insertion process of the lock pin body, which results in a difficult operation process.
Disclosure of Invention
In order to align the insertion process of the lock needle body conveniently so as to reduce the difficulty of the operation process, the application provides an orthopedic reduction fixator.
The application provides an orthopedics reduction fixer adopts following technical scheme:
the utility model provides an orthopedics reduction fixer, includes two solid fixed rings, two be provided with many regulation poles between the solid fixed ring, gu be provided with lock needle mechanism on the fixed ring, lock needle mechanism includes lock needle body and two lock needle file, two the lock needle file slides respectively and sets up in solid fixed ring relative both sides, the pinhole has been seted up on the lock needle file, the lock needle body passes the pinhole on one of them lock needle file and extends outside the pinhole on another lock needle file, the hoop has seted up the spacing groove on solid fixed ring's the outer periphery, it is provided with the alignment seat to slide in the spacing groove, the alignment hole has been seted up to the one end of alignment seat, it is located same level with the pinhole to aim at the hole, the other end of alignment seat is provided with the alignment rod, the one end that the pinhole was kept away from to the lock needle file is seted up and is supplied the alignment rod to insert the jack of establishing.
By adopting the technical scheme, after the fixing ring is fixed on the fracture part of a patient, the position of the alignment seat on the fixing ring is adjusted firstly, when the alignment rod is aligned with the jack on the lock needle seat, the alignment rod is inserted into the jack to fix the position of the alignment seat, the alignment hole on the alignment seat is positioned in the extending direction of the pin hole connecting line on the two lock needle seats, the lock needle body penetrates through the alignment hole and is inserted into the pin hole of one of the lock needle seats, then the lock needle body penetrates through bones at two ends of the fracture, and finally penetrates out from the pin hole on the other lock needle seat.
Preferably, the needle locking mechanism comprises an upper needle locking mechanism and a lower needle locking mechanism, the needle locking body of the upper needle locking mechanism is positioned on the upper portion of the fixing ring, and the needle locking body of the lower needle locking mechanism is positioned on the lower portion of the fixing ring.
By adopting the technical scheme, the lock needle body of the upper lock needle mechanism is arranged on the upper part of the fixing ring, and the lock needle body of the lower lock needle mechanism is arranged on the lower part of the fixing ring, so that the cross interference of the lock needle body of the upper lock needle mechanism and the lock needle body of the lower lock needle mechanism after the lock needle bodies penetrate through the bone of the fracture part is avoided to a certain extent, and the safety of the operation process is improved.
Preferably, the aligning seat includes the sliding seat and rotates the seat, the sliding seat slides and sets up at the spacing inslot, rotate the seat and rotate the setting through the pivot and keep away from the one end of solid fixed ring at the sliding seat, alignment rod and alignment hole all set up on rotating the seat, the pivot is located the alignment rod and aligns the mid point position of hole line, it ends the commentaries on classics subassembly to rotate to be provided with on the seat, set up two confessions on stopping the commentaries on classics subassembly and insert the groove of ending of establishing on the sliding seat.
By adopting the technical scheme, after the lock needle body of one lock needle mechanism is fixed in the bone of a patient, the sliding seat slides to be aligned with one of the lock needle seats on the next lock needle mechanism, then the rotating seat rotates 180 degrees, so that the alignment hole is positioned in the extending direction of the needle hole connecting line on the two lock needle seats of the next lock needle mechanism, then the relative position between the sliding seat and the rotating seat is fixed through the rotation stopping assembly, so that the alignment effect on the next lock needle body is facilitated, and the accuracy of the next lock needle body in the inserting process is conveniently improved.
Preferably, the rotation stopping assembly comprises a rotation stopping rod and a rotation stopping sheet, one end of the rotation stopping rod is arranged in the rotation seat in a penetrating mode, the rotation stopping sheet is arranged at one end, located outside the rotation seat, of the rotation stopping rod, and a tension spring is connected between the rotation stopping sheet and the rotation seat.
Through adopting above-mentioned technical scheme, when needs rotate the rotating seat, extract the spline from the spline, then rotate the seat, when rotating the seat and rotate 180 degrees, another spline is aimed at to the spline, spline under the spring action of extension spring in the spline inserts the spline, make and rotate the seat and can't continue to rotate to realize rotating the fixed of relative position between seat and the sliding seat after the assigned position is rotated to the seat.
Preferably, one end of the rotation stopping sheet, which is far away from the rotation stopping rod, is provided with a pulling ring.
Through adopting above-mentioned technical scheme, the staff pulls the ring so that pull the spline pole through handheld to the convenience shifts out the spline pole from the spline inslot.
Preferably, the rotating seat comprises a main support and an auxiliary support which is hinged to the main support, a semicircular groove is formed in one face, close to each other, of the main support and the auxiliary support, a positioning piece is arranged on the main support, and a positioning hole for the positioning piece to insert is formed in the auxiliary support.
Through adopting above-mentioned technical scheme, main tributary seat and supplementary support rotate to the orientation that is close to each other after the laminating state, the hole is aimed at promptly to two semicircular groove constitutions, pass the lock needle body and aim at the hole and insert in the pinhole of one of them lock needle file, then pass the skeleton at fracture both ends and wear out the back from the pinhole on another lock needle file, first lock needle body inserts promptly and establishes the completion, rotate main support and supplementary support to the orientation of keeping away from each other, make and aim at the hole and separate for two semicircular groove, so that will rotate the seat and shift out from the lock needle body, then will rotate the seat and remove to next group lock needle mechanism department through the sliding seat, play the alignment effect with the convenient insertion to next lock needle body.
Preferably, the setting element includes the locating lever, the locating lever is worn to establish in the main support, the one end that the locating lever kept away from the assistance support is provided with the spacer, the locating lever has been seted up the holding tank on being close to the lateral wall of assisting support one end, be provided with in the holding tank and support tight spring, it is provided with the locating piece to support the one end that tight spring kept away from the holding tank diapire.
By adopting the technical scheme, when the main support and the auxiliary support are required to be positioned, the positioning block is pressed into the accommodating groove, so that the positioning block can pass through the positioning hole, and one end of the positioning block extends out of the accommodating groove under the elastic force action of the abutting spring after the positioning block passes through the positioning hole; the part of the positioning block, which is positioned outside the accommodating groove, is abutted to the auxiliary support, so that the auxiliary support cannot be separated from the main support, and the positioning effect on the main support and the auxiliary support is realized.
Preferably, adjust the pole and include adjusting sleeve and threaded rod, the one end of threaded rod is worn to establish in adjusting sleeve and with adjusting sleeve threaded connection, the one end rotation that adjusting sleeve is close to the threaded rod is provided with the flexible lantern ring, the flexible lantern ring cover establish the outside of threaded rod and with threaded rod clearance fit.
Through adopting above-mentioned technical scheme, drive the threaded rod synchronous rotation through rotating the flexible lantern ring, make the threaded rod change in the insertion amount of adjusting the sleeve to the whole length that makes the regulation pole changes, adjusts in order to make things convenient for the relative state between the solid fixed ring.
Preferably, be provided with on the adjusting sleeve and prevent changeing the subassembly, prevent changeing the subassembly and include that the rotating-proof ring overlaps on the adjusting sleeve with a plurality of commentaries on classics piece of preventing, prevent that the piece is fixed to be set up in one side of the flexible lantern ring of rotating-proof ring orientation and lie in the outside of the flexible lantern ring, prevent being connected with the pressure spring between piece and the adjusting sleeve.
Through adopting above-mentioned technical scheme, through set up the change collar and prevent the commentaries on classics piece in adjusting sleeve's outside, avoided to a certain extent in the use because of the mistake runs into flexible lantern ring and make the overall state of fixer change and cause the influence to the patient.
Preferably, the both ends of adjusting the pole all are provided with rotates the spheroid, gu slide on the fixed ring is provided with the supporting seat, spherical groove has been seted up on the supporting seat, it rotates the setting in spherical groove to rotate the spheroid.
Through adopting above-mentioned technical scheme, through set up the rotation spheroid on adjusting the pole to set up spherical groove on solid fixed ring's supporting seat, so that improve the smooth and easy degree when adjusting the pole rotation, thereby the convenience is to the accommodation process of relative position between two stationary ring positions.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the aligning seat is arranged on the fixing ring in a sliding mode, after the fixing ring is fixed to a fracture part of a patient, the position of the aligning seat on the fixing ring is adjusted firstly, when the aligning rod is aligned with the insertion hole in the lock needle seat, the aligning rod is inserted into the insertion hole to enable the position of the aligning seat to be fixed, the aligning hole in the aligning seat is located in the extending direction of the connecting line of the needle holes in the two lock needle seats, the lock needle body penetrates through the aligning hole and is inserted into the needle hole of one of the lock needle seats, accuracy in the inserting process of the lock needle body is improved, and therefore the lock needle body is prevented from shifting after being inserted from the lock needle seats to a certain extent;
2. the aligning seat is formed by the sliding seat and the rotating seat, after the locking needle body of one locking needle mechanism is fixed in a bone of a patient, the sliding seat slides to be aligned with one locking needle seat on the next locking needle mechanism, then the rotating seat is rotated by 180 degrees, an aligning hole is positioned in the extending direction of a connecting line of needle holes on two locking needle seats of the next locking needle mechanism, and then the relative position between the sliding seat and the rotating seat is fixed through the rotation stopping assembly, so that the aligning effect on the next locking needle body is achieved;
3. this application makes the threaded rod change in the insertion amount of adjusting sleeve through rotating the flexible lantern ring to the whole length that makes the regulation pole changes, adjusts with the convenience to the relative state between two solid fixed rings.
Drawings
Fig. 1 is a schematic view of the overall structure of the present application.
Fig. 2 is a schematic structural view of the fixing ring of the present application.
Fig. 3 is a schematic structural diagram of the adjusting rod of the present application.
Fig. 4 is a cross-sectional view of an adjuster rod of the present application.
Fig. 5 is a schematic structural diagram of the locking needle mechanism of the present application.
Fig. 6 is a schematic structural view of the alignment seat and the lock pin seat of the present application.
FIG. 7 is a schematic view of the alignment block of the present application.
Fig. 8 is a schematic structural view of the rotary base of the present application.
FIG. 9 is an enlarged view of the portion A of FIG. 8
Description of reference numerals: 1. a fixing ring; 11. a limiting groove; 12. a supporting seat; 121. a spherical groove; 13. a first chute; 14. a second chute; 2. adjusting a rod; 21. an adjustment sleeve; 22. a threaded rod; 23. a flexible collar; 24. an anti-rotation component; 241. an anti-rotation ring; 242. a rotation prevention sheet; 243. a pressure spring; 25. rotating the ball body; 3. a needle locking mechanism; 31. a lock pin body; 32. a lock pin seat; 321. a pinhole; 322. positioning a nut; 33. a lock pin mechanism; 34. a lower lock pin mechanism; 4. an alignment seat; 41. an alignment rod; 42. a sliding seat; 421. a rotation stopping groove; 43. a rotating seat; 431. a rotating shaft; 432. a rotation stopping assembly; 4321. a rotation stopping rod; 4322. a rotation stopping sheet; 4323. a tension spring; 4324. pulling the ring; 433. a main support; 434. an auxiliary support; 435. a positioning member; 4351. positioning a rod; 4352. positioning plates; 4353. the spring is tightly propped; 4354. and (5) positioning the blocks.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses an orthopedic reduction fixator, referring to fig. 1 and fig. 2, comprising two fixing rings 1 and four adjusting rods 2 connected between the two fixing rings 1, wherein each fixing ring 1 is provided with two groups of locking needle mechanisms 3, each four adjusting rods 2 is a telescopic rod and is uniformly distributed between the two fixing rings 1, each fixing ring 1 is provided with four first sliding grooves 13, each first sliding groove 13 is internally and slidably connected with a supporting seat 12, the top end of each adjusting rod 2 is rotatably connected to one supporting seat 12 on the fixing ring 1 above, the bottom end of each adjusting rod is rotatably connected to the corresponding supporting seat 12 on the fixing ring 1 below, the position of the supporting seat 12 in the first sliding groove 13 is adjusted according to requirements, the relative position between the two fixed rings 1 can then be adjusted to the desired state by changing the length of the adjustment rod 2. With reference to fig. 3, the two ends of the adjusting rod 2 are welded with the rotating balls 25, the supporting seat 12 is provided with the spherical groove 121 for placing the rotating balls 25, and the rotating balls 25 and the spherical groove 121 are in clearance fit, so that the smoothness of the adjusting rod 2 during rotation is improved, and the adjusting process of the positions of the two fixing rings 1 is facilitated.
Referring to fig. 3, adjust pole 2 by adjusting sleeve 21, threaded rod 22 and flexible lantern ring 23 are constituteed, threaded rod 22's one end is worn to establish in adjusting sleeve 21 and with adjusting sleeve 21 threaded connection, the one end that flexible lantern ring 23 coaxial line is connected and is close to threaded rod 22 at adjusting sleeve 21, and can take place relative rotation between the adjusting sleeve 21, the staff holds adjusting sleeve 21 on one hand, hold and rotate flexible lantern ring 23 on the other hand, flexible lantern ring 23 drives threaded rod 22 synchronous rotation at the pivoted in-process, thereby change the insertion amount of threaded rod 22 in adjusting sleeve 21, and then realize the regulation to the whole length of adjusting pole 2.
Referring to fig. 3 and 4, the outer portion of the adjusting sleeve 21 is rotatably connected with an anti-rotation assembly 24 to prevent the threaded rod 22 from rotating due to mistaken touch of the flexible sleeve ring 23 during use, which results in a change of the overall state of the orthopedic reduction fixator, the anti-rotation assembly 24 includes an anti-rotation ring 241 sleeved on the adjusting sleeve 21 and anti-rotation pieces 242 hinged on two sides of the anti-rotation ring 241, the anti-rotation ring 241 and the adjusting sleeve 21 can rotate relatively and cannot slide relatively, the anti-rotation pieces 242 are connected to one side of the anti-rotation ring 241 facing the flexible sleeve ring 23 through hinges and are located on the outer portion of the flexible sleeve ring 23, a pressure spring 243 is connected between the anti-rotation pieces 242 and the adjusting sleeve 21, when the length of the adjusting rod 2 needs to be adjusted, a worker presses one end of the anti-rotation pieces 242 close to the flexible sleeve ring 23 and presses the flexible sleeve ring 23 against the threaded rod 22, and then drives the flexible sleeve ring 23 to rotate through the anti-rotation pieces 242, the insertion amount of the threaded rod 22 in the adjusting sleeve 21 changes during the rotation process, so that the length of the adjusting rod 2 is adjusted; after the rotation is completed, the rotation preventing piece 242 is loosened, under the action of the elastic force of the pressure spring 243, the rotation preventing piece 242 is not in contact with the flexible lantern ring 23, and the flexible lantern ring 23 is protected, so that the condition that the length of the adjusting sleeve 21 is changed to influence the state of the orthopedic reduction fixator due to the fact that a worker mistakenly touches the flexible lantern ring 23 is avoided to a certain extent.
Referring to fig. 2 and 5, the locking mechanism 3 is composed of a locking body 31 and two locking needle seats 32, the fixing ring 1 is located between two adjacent first chutes 13, and has a second chute 14, two locking needle seats 32 in each locking mechanism 3 are respectively connected in two second chutes 14 opposite to the fixing ring 1 in a sliding manner, each locking needle seat 32 is located between two supporting seats 12, the locking needle seat 32 has an external thread and is connected with a positioning nut 322 in a threaded manner, after the locking needle seat 32 slides to the designated position of the second chute 14, the positioning nut 322 is screwed to abut against the fixing ring 1, so as to realize the positioning function of the whole locking needle seat 32. The lock needle seat 32 is provided with a needle hole 321, the lock needle body 31 penetrates through the needle hole 321 on one lock needle seat 32 and extends out of the needle hole 321 on the other lock needle seat 32, after the integral state of the orthopedic reduction fixator is adjusted, the lock needle body 31 penetrates through the needle hole 321 of one lock needle seat 32, then the lock needle body 31 penetrates through bones at two ends of fracture and finally penetrates out of the needle hole 321 on the other lock needle seat 32, and the positioning effect on the bones at two ends of fracture is realized.
Referring to fig. 2, one of the needle locking mechanisms 3 is a needle locking mechanism 33, the needle locking body 31 of the needle locking mechanism 33 is located on the upper surface of the fixing ring 1, the other needle locking mechanism 3 is a needle locking mechanism 34, the needle locking body 31 of the needle locking mechanism 34 is located on the surface of the fixing ring 1, and the needle locking mechanisms 33 and the needle locking mechanisms 34 are respectively installed on the upper surface and the lower surface of the fixing ring 1, so as to avoid the cross interference of the needle locking bodies 31 of the two needle locking mechanisms 3 after passing through the bone of the fracture site.
Referring to fig. 2 and 6, a limiting groove 11 is circumferentially formed on the outer circumferential surface of the fixing ring 1, an alignment seat 4 is slidably disposed in the limiting groove 11, the alignment seat 4 includes a sliding seat 42 and a rotating seat 43, the sliding seat 42 is slidably connected in the limiting groove 11, and the rotating seat 43 is rotatably connected to one end of the sliding seat 42, which is far away from the fixing ring 1, through a rotating shaft 431. An alignment hole is formed in one end of the rotating seat 43, the alignment hole and the needle hole 321 are located at the same horizontal height, an alignment rod 41 penetrates through the other end of the rotating seat 43, and a jack for inserting the alignment rod 41 is formed in one end, away from the needle hole 321, of the lock needle seat 32. Referring to fig. 7, the rotating shaft 431 is located at a midpoint position of a connecting line between the alignment rod 41 and the alignment hole, the rotation stopping assembly 432 is disposed on the rotating seat 43, and the rotation stopping grooves 421 for the rotation stopping assembly 432 to be inserted are disposed on both upper and lower sides of the sliding seat 42.
When the alignment rod 41 aligns with the insertion hole on the lock needle seat 32, the alignment rod 41 is inserted into the insertion hole to fix the position of the alignment seat 4, at this time, the alignment hole on the alignment seat 4 is positioned in the extending direction of the connecting line of the needle holes 321 on the two lock needle seats 32, the lock needle body 31 is inserted into the needle hole 321 of one of the lock needle seats 32 through the alignment hole, then the lock needle body 31 is inserted into the bones at the two ends of the fracture, and finally the lock needle body 31 penetrates out of the needle hole 321 on the other lock needle seat 32, so that the position of the lock needle body 31 in the bones of the patient is fixed. When the lock pin body 31 of another set of lock pin mechanism 3 needs to be fixed to the bone of a patient, the sliding seat 42 is slid to align with one of the lock pin seats 32 on the next lock pin mechanism 3, then the rotating seat 43 is rotated 180 degrees, so that the alignment holes are positioned in the extending direction of the connecting line of the pin holes 321 on the two lock pin seats 32 in the other set of lock pin mechanism 3, and then the relative position between the sliding seat 42 and the rotating seat 43 is fixed through the rotation stopping component 432, so as to facilitate the alignment of the next lock pin body 31, and further facilitate the improvement of the accuracy of the next lock pin body 31 in the insertion process.
Referring to fig. 7, the rotation stopping assembly 432 includes a rotation stopping rod 4321 and a rotation stopping sheet 4322, one end of the rotation stopping rod 4321 is inserted into the rotation stopping seat 43, the rotation stopping sheet 4322 is welded to one end of the rotation stopping rod 4321 located outside the rotation stopping seat 43, a tension spring 4323 is fixedly connected between the rotation stopping sheet 4322 and the rotation stopping seat 43, one end of the rotation stopping sheet 4322 away from the rotation stopping rod 4321 is welded with a pull ring 4324, when the rotation stopping seat 43 needs to be rotated, the rotation stopping rod 4321 is pulled out from the rotation stopping groove 421 by holding the pull ring 4324 with a hand, and then the rotation stopping seat 43 is rotated, when the rotation stopping seat 43 rotates 180 degrees, the rotation stopping rod 4321 aligns to another rotation stopping groove 421, and the rotation stopping rod 4321 is inserted into the rotation stopping groove 421 under the elastic force of the tension spring 4323, so that the rotation stopping seat 43 cannot rotate continuously, and the relative position between the rotation stopping seat 43 and the sliding seat 42 is fixed after the rotation stopping seat 43 rotates to the designated position.
Referring to fig. 8 and 9, the rotating base 43 includes a main support 433 and an auxiliary support 434 hinged to the main support 433, a semicircular groove is formed on a side of the main support 433 close to the auxiliary support 434, a positioning member 435 is inserted into the main support 433, and a positioning hole for inserting the positioning member 435 is formed in the auxiliary support 434. The positioning element 435 comprises a positioning rod 4351, the positioning rod 4351 is arranged in the main support 433 in a penetrating manner, a positioning piece 4352 is welded at one end of the positioning rod 4351, which is far away from the auxiliary support 434, an accommodating groove is formed in a side wall of one end of the positioning rod 4351, which is close to the auxiliary support 434, a resisting spring 4353 is fixedly connected in the accommodating groove, a positioning block 4354 is welded at one end of the resisting spring 4353, which is far away from the bottom wall of the accommodating groove, when the main support 433 and the auxiliary support 434 need to be positioned, the positioning block 4354 is pressed into the accommodating groove, so that the positioning block 4354 can pass through the positioning hole, and after the positioning block 4354 passes through the positioning hole, under the elastic force action of the resisting spring 4353, one end of the positioning block 4354 extends out of the accommodating groove; the part of the positioning block 4354 outside the receiving groove abuts against the auxiliary support 434, so that the auxiliary support 434 cannot be separated from the main support 433, and the main support 433 and the auxiliary support 434 are positioned.
After the main support 433 and the auxiliary support 434 are rotated to the close direction to each other to the close state and are positioned by the positioning member 435, the two semicircular grooves form the alignment hole, the lock pin body 31 passes through the alignment hole and is inserted into the pin hole 321 of one of the lock pin bases 32, then passes through the bones at the two ends of the fracture and penetrates out of the pin hole 321 on the other lock pin base 32, the first lock pin body 31 is inserted and installed, the main support 433 and the auxiliary support 434 are rotated in the direction away from each other, the alignment hole is divided into two semicircular grooves, so that the rotating base 43 is conveniently moved out from the lock pin body 31, and then the rotating base 43 is moved to the next set of lock pin mechanism 3 through the sliding base 42, so that the next lock pin body 31 can be conveniently inserted and aligned.
The implementation principle of the orthopedic reduction fixator in the embodiment of the application is as follows: after the fixing ring 1 is fixed to a fracture part of a patient, the position of the aligning seat 4 on the fixing ring 1 is adjusted, when the aligning rod 41 aligns to the jack on the lock needle seat 32, the aligning rod 41 is inserted into the jack to fix the position of the aligning seat 4, the aligning hole on the aligning seat 4 is positioned in the extending direction of the connecting line of the needle holes 321 on the two lock needle seats 32, the lock needle body 31 penetrates through the aligning hole and is inserted into the needle hole 321 of one of the lock needle seats 32, then the lock needle body 31 penetrates through bones at two ends of the fracture, and finally penetrates out of the needle hole 321 on the other lock needle seat 32, the accuracy of the inserting process of the lock needle body 31 is improved by arranging the aligning seat 4, and therefore the situation that the operation is influenced due to the deviation of the lock needle body 31 after being inserted from the lock needle seats 32 is avoided to a certain extent.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides an orthopedics reduction fixer, includes two solid fixed rings (1), two be provided with many regulation poles (2) between solid fixed ring (1), be provided with lock needle mechanism (3) on solid fixed ring (1), lock needle mechanism (3) are including lock needle body (31) and two lock needle file (32), two lock needle file (32) slide respectively and set up in solid fixed ring (1) relative both sides, pinhole (321) have been seted up on lock needle file (32), lock needle body (31) pass pinhole (321) on one of them lock needle file (32) and extend pinhole (321) on another lock needle file (32) outside, its characterized in that: the outer circumferential surface of the fixing ring (1) is annularly provided with a limiting groove (11), an alignment seat (4) is arranged in the limiting groove (11) in a sliding mode, one end of the alignment seat (4) is provided with an alignment hole, the alignment hole and the needle hole (321) are located at the same horizontal height, the other end of the alignment seat (4) is provided with an alignment rod (41), and one end, far away from the needle hole (321), of the lock needle seat (32) is provided with a jack for the alignment rod (41) to be inserted; aim at seat (4) including sliding seat (42) and rotation seat (43), sliding seat (42) slide and set up in spacing groove (11), rotate seat (43) and rotate the one end that sets up at sliding seat (42) and keep away from solid fixed ring (1) through pivot (431), alignment rod (41) and alignment hole all set up on rotating seat (43), pivot (431) are located alignment rod (41) and the mid point position of aligning the hole line, it splines subassembly (432) to be provided with on rotation seat (43), set up two confessions on sliding seat (42) and spline subassembly (432) and insert the groove (421) that splines of establishing.
2. An orthopedic reduction fixator in accordance with claim 1, wherein: lock needle mechanism (3) are including locking needle mechanism (33) and locking needle mechanism (34) down, the lock needle body (31) of locking needle mechanism (33) are located the upper portion of solid fixed ring (1), the lock needle body (31) of locking needle mechanism (34) are located the lower part of solid fixed ring (1) down.
3. An orthopedic reduction fixator in accordance with claim 1, wherein: the rotation stopping assembly (432) comprises a rotation stopping rod (4321) and a rotation stopping sheet (4322), one end of the rotation stopping rod (4321) is arranged in the rotating seat (43) in a penetrating mode, the rotation stopping sheet (4322) is arranged at one end, located outside the rotating seat (43), of the rotation stopping rod (4321), and a tension spring (4323) is connected between the rotation stopping sheet (4322) and the rotating seat (43).
4. An orthopedic reduction fixator according to claim 3 wherein: one end of the rotation stopping sheet (4322) far away from the rotation stopping rod (4321) is provided with a pull ring (4324).
5. An orthopedic reduction fixator in accordance with claim 1, wherein: rotate seat (43) and include main support (433) and the articulated supplementary support (434) of setting on main support (433), semicircular groove has all been seted up to the one side that main support (433) and supplementary support (434) are close to each other, be provided with setting element (435) on main support (433), set up on supplementary support (434) and supply setting element (435) to insert the locating hole of establishing.
6. An orthopedic reduction fixator according to claim 5 wherein: the locating piece (435) comprises a locating rod (4351), the locating rod (4351) is arranged in the main support (433) in a penetrating mode, a locating piece (4352) is arranged at one end, far away from the auxiliary support (434), of the locating rod (4351), a containing groove is formed in the side wall, close to one end of the auxiliary support (434), of the locating rod (4351), a pressing spring (4353) is arranged in the containing groove, and a locating block (4354) is arranged at one end, far away from the bottom wall of the containing groove, of the pressing spring (4353).
7. An orthopedic reduction fixator in accordance with claim 1, wherein: adjust pole (2) including adjusting sleeve (21) and threaded rod (22), the one end of threaded rod (22) is worn to establish in adjusting sleeve (21) and with adjusting sleeve (21) threaded connection, the one end rotation that adjusting sleeve (21) is close to threaded rod (22) is provided with flexible lantern ring (23), flexible lantern ring (23) and threaded rod (22) screw-thread fit.
8. An orthopedic reduction fixator in accordance with claim 7, wherein: be provided with on adjusting sleeve (21) and prevent changeing subassembly (24), prevent changeing subassembly (24) including preventing change ring (241) and a plurality of piece (242) of changeing of preventing, prevent that change ring (241) cover is established on adjusting sleeve (21), prevent changeing piece (242) fixed setting at preventing change ring (241) towards one side of flexible lantern ring (23) and be located the outside of flexible lantern ring (23), prevent changeing and be connected with pressure spring (243) between piece (242) and adjusting sleeve (21).
9. An orthopedic reduction fixator in accordance with claim 1, wherein: the both ends of adjusting pole (2) all are provided with and rotate spheroid (25), gu it is provided with supporting seat (12) to slide on fixed ring (1), spherical groove (121) have been seted up on supporting seat (12), it sets up in spherical groove (121) to rotate spheroid (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011257290.XA CN112244971B (en) | 2020-11-11 | 2020-11-11 | Orthopedics reduction fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011257290.XA CN112244971B (en) | 2020-11-11 | 2020-11-11 | Orthopedics reduction fixer |
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| Publication Number | Publication Date |
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| CN112244971A CN112244971A (en) | 2021-01-22 |
| CN112244971B true CN112244971B (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011257290.XA Active CN112244971B (en) | 2020-11-11 | 2020-11-11 | Orthopedics reduction fixer |
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| CN (1) | CN112244971B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU475147A1 (en) * | 1973-05-18 | 1975-06-30 | Compression Distraction Apparatus | |
| CN2724650Y (en) * | 2004-01-08 | 2005-09-14 | 罗伟初 | Sighting device for internal fixation of fractured bone |
| TW200722032A (en) * | 2005-08-25 | 2007-06-16 | Synthes Gmbh | External fixation system and method of use |
| CN104367373A (en) * | 2014-11-10 | 2015-02-25 | 山东航维骨科医疗器械股份有限公司 | Reduction fixator for department of orthopedics |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8257353B2 (en) * | 2010-02-24 | 2012-09-04 | Wright Medical Technology, Inc. | Orthopedic external fixation device |
-
2020
- 2020-11-11 CN CN202011257290.XA patent/CN112244971B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU475147A1 (en) * | 1973-05-18 | 1975-06-30 | Compression Distraction Apparatus | |
| CN2724650Y (en) * | 2004-01-08 | 2005-09-14 | 罗伟初 | Sighting device for internal fixation of fractured bone |
| TW200722032A (en) * | 2005-08-25 | 2007-06-16 | Synthes Gmbh | External fixation system and method of use |
| CN104367373A (en) * | 2014-11-10 | 2015-02-25 | 山东航维骨科医疗器械股份有限公司 | Reduction fixator for department of orthopedics |
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| Publication number | Publication date |
|---|---|
| CN112244971A (en) | 2021-01-22 |
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