CN110974388A - Resetting and fixing device for intracapsular condylar fracture - Google Patents
Resetting and fixing device for intracapsular condylar fracture Download PDFInfo
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- CN110974388A CN110974388A CN201911058805.0A CN201911058805A CN110974388A CN 110974388 A CN110974388 A CN 110974388A CN 201911058805 A CN201911058805 A CN 201911058805A CN 110974388 A CN110974388 A CN 110974388A
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8866—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices for gripping or pushing bones, e.g. approximators
Abstract
The invention discloses a resetting and fixing device for intracapsular condylar fracture, and relates to the technical field of jaw fracture resetting and fixing in oral and maxillofacial surgery. The resetting and fixing device for the intracystic condyle fracture comprises a resetting device and a correcting and fixing device, wherein the working end of the resetting device is a small-bent drag hook bent towards one side, the working end of the correcting and fixing device is a barb bent backwards, an auxiliary fixing piece which can move at the end of the functional shaft and faces one end of the barb is arranged on a functional shaft connected with the working end, and the auxiliary fixing piece is controlled to move and lock by a base of a handheld handle end through a transmission assembly or by an installed shaft sleeve and a locking bolt; the intercondylar internal fracture fixation device is suitable for resetting and fixing the intercondylar internal fracture block, creates a stable and good operation environment for the intervention of a next bone dynamic system, and is suitable for popularization and application in medical institutions.
Description
Technical Field
The invention relates to the technical field of jaw fracture reduction and fixation in oral and maxillofacial surgery, in particular to a reduction and fixation device for intra-condylar-cyst fracture.
Background
The fracture of the mandible is a common and frequently encountered disease in oral and maxillofacial surgery. The mandibular condyle is one of the weak areas of the mandible, is a well-fractured part and is also a difficult point of surgical treatment. The condylar endocystal fracture is the high position fracture of the condylar process of the mandible, the fracture block behind the condylar fracture is pulled by muscles to be positioned inwards, downwards and forwards, the anatomical part is complicated, a plurality of nerves and blood vessels are involved, the exposure is inconvenient, and the traditional surgical instruments can not be conveniently operated to realize the purposes of resetting and fixing, so that more patients can not be treated by the operation or the fixing effect of the resetting of the operation is poor.
After the internal condylar-cyst fracture of the mandible, the stability of the joint is damaged, and the fracture block of the internal condylar pole is pulled by the muscles of the lateral pterygoid muscle to move inwards, downwards and forwards and is shielded by the external side of the condylar. The tragus incision is designed in a conventional operation, a fracture block needs to be searched inwards, downwards and forwards from the back and the outer side of the condyle, and the fracture block is reset as far as possible by surgical instruments such as a stripper, a small bend and the like. Because (1) muscle is drawn, the resisting angle of the detacher is not proper, and the detacher is easy to slip; (2) the fracture block is small, the bone is loose, and the clamping of the small bend is not facilitated; therefore, the reduction within the condylar capsule is the most complex and time-consuming part of the procedure. Even if the fracture piece can be initially reduced, fixation is difficult. Usually, a stripping countermeasure mode is adopted to temporarily fix a fracture block, and then a titanium nail is punched by using a bone power system to penetrate and fix a lateral condyle bone and an internal polar bone block, so that the bone block can be displaced due to the movement of a small instrument of any surgeon in the process, and further the reduction and fixation fails, and the size of the fracture block in the condyle capsule is small, so that the fracture block cannot be punched for many times, namely, the fixing try again has few chances. Because of the difficulty in exposing the operative field and the lack of reasonably effective repositioning and fixing instruments, the operation is always regarded as one of the most complicated operations for mandibular fracture, resulting in the failure of operative treatment or poor repositioning and fixing effect in the operation for many patients. The existing condylar process of existing market is controlled pincers, mainly used for the fixed action after the reduction of condylar neck fracture, and the shortcoming lies in: 1. the forceps end is large and is not suitable for the internal condylar cyst fracture; 2. the emphasis is on the fixation, and no obvious restoration effect exists. Therefore, it is necessary to design a special instrument for resetting and fixing the intracondylar fracture.
In summary, the prior art lacks a special instrument for resetting and fixing the intercondylar internal fracture, which is not suitable for resetting and fixing the intercondylar internal fracture.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a device for resetting and fixing the intracondylar eminence fracture, which is suitable for resetting and fixing the intracondylar eminence fracture block, creates a stable and good operating environment for the intervention of a next bone dynamic system, and is suitable for popularization and application in medical institutions.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the utility model provides a reset and fixing device of condyle cyst internal fracture, includes resetting means and revises fixing device, resetting means and revises fixing device's main part and includes handheld handle, the work end of function axle and anterior segment, resetting means's work end is the little curved drag hook of lateral bending, revises fixing device's work end for the barb of backward recurvation, the epaxial installation of function of being connected with the work end can be at the activity of function axle head and towards the auxiliary fixture of barb one end, the auxiliary fixture is controlled the activity and is locked by the base of handheld handle end or itself.
Furthermore, the auxiliary fixing piece of the correction fixing device is arranged on the functional shaft through a shaft sleeve, and a locking bolt is arranged on the shaft sleeve.
Furthermore, revise the fixing device front end and be the joint pole, the inboard latch of seting up sunken of joint pole is used for controlling the removal and the locking of auxiliary fixing spare, auxiliary fixing spare includes joint cover and latch locking piece, the inboard latch interval of joint pole even, the total length is 1-2cm, joint cover installs on the joint pole, inboard opening and turn over inwards and roll over and can slide on the joint pole, the rear end face installation latch locking piece of auxiliary fixing spare, the latch locking piece is middle strip of buckling, and the centre is installed through elastic element, and both ends are operating end and locking end respectively, and the locking end supports the latch and realizes the locking.
Furthermore, the auxiliary fixing piece of the correcting and fixing device is controlled by a transmission assembly arranged in the functional shaft and a base of the handheld handle end; the functional shaft is of a hollow structure, a slot is cut at the front end of the functional shaft, a transmission assembly is arranged in the functional shaft, an auxiliary fixing piece is installed in the transmission assembly, the transmission assembly penetrates out of the slot, the transmission assembly comprises a movable shaft which is connected with the auxiliary fixing piece and is attached to the inner wall of the functional shaft, a transmission rod and a movable shaft are sequentially installed at the rear end of the movable shaft at intervals, the movable shaft at the rearmost end is connected with a rack in a base at the end of a handheld handle, a meshed gear is installed on the rack positioned on the base, and the center of the gear penetrates through two ends of a fixed;
the length of a movable shaft connected with the auxiliary fixing piece at the front end of the transmission assembly is 2-3 times of that of a functional shaft groove, the auxiliary fixing piece is arranged in the middle of the auxiliary fixing piece, the free stroke of the auxiliary fixing piece in the groove is 1-2cm, and the groove does not exceed one fourth of the section of the functional shaft;
the movable shaft of the transmission assembly is in clearance fit with the inner wall of the functional shaft, and the diameter of the transmission rod is smaller than that of the movable shaft;
the inner ring of the gear is of a hollow structure, pin grooves are symmetrically formed in the upper portion and the lower portion of the inner ring of the gear, protruding pins are designed on the fixing shaft and are installed in a matched mode, an adjusting knob is fixedly installed at one end of the fixing shaft to drive the gear to rotate, threads are formed in the other end of the fixing shaft, and a locking knob capable of rotating to the outer wall of the base to achieve locking is installed at the other end.
Furthermore, raised convex teeth are arranged on the inner sides of the barb and the small bent draw hook.
Another object of the present invention is to provide a method for reducing and fixing an intracondylar fracture of an intracondylar fracture reduction and fixation device, comprising the steps of:
after the fracture block is preliminarily reset by the resetting device, the correction fixing device is used for continuous alignment, the rotation of the fracture block is resisted by the added small elbow, the fracture block is prevented from slipping by the small metal convex teeth on the inner surface, and ideal fracture block resetting is realized;
after the reduction is completed, the auxiliary fixing piece of the correction fixing device is adjusted until the outer side of the condyle is stably clamped, and the outer side of the condyle and the inner polar bone block are sufficiently clamped and temporarily fixed, so that a stable and good operation environment is created for the intervention of a next bone dynamic system.
The working principle of the invention is as follows: the invention relates to a resetting and fixing device for intracystic condyle fracture, which comprises a resetting device and a correcting and fixing device, wherein the working end of the resetting device is a small-bending drag hook bent towards one side, the working end of the correcting and fixing device is a barb bent backwards, an auxiliary fixing piece which can move at the end of a functional shaft and faces one end of the barb is arranged on a functional shaft connected with the working end, and the auxiliary fixing piece is controlled to move and lock by a base of a handheld handle end through a transmission assembly or by an installed shaft sleeve and a locking bolt;
the principle of the transmission assembly is as follows: the rack and pinion structure at the rear end drives the rack to move forwards or backwards through the rotation of the gear and the connected adjusting knob, so as to drive the movable shaft and the transmission rod at the front end to move forwards and backwards, and the other end of the fixed shaft on the gear is provided with threads and is provided with a locking knob which can rotate to the outer wall of the base to realize locking;
the movement and locking of the shaft sleeve and the locking bolt on the functional shaft are controlled by the locking bolt;
the auxiliary fixing part principle of the correction fixing device is as follows: the length of a movable shaft connected with the auxiliary fixing piece at the front end of the transmission assembly is 2-3 times of that of the groove of the functional shaft, the movable shaft can stably move in the functional shaft and cannot be separated from the functional shaft due to the specification of the movable shaft, and the auxiliary fixing piece is arranged in the middle of the auxiliary fixing piece and can move in the free stroke of the groove and is matched with the barb end to realize correction and reset;
the front end of the correction fixing device is a joint rod, the inner side of the joint rod is provided with a sunken latch for controlling the auxiliary fixing piece to move and lock, the rear end face of the auxiliary fixing piece is provided with a latch locking piece, the latch locking piece is in a strip shape with the middle bent, the middle is provided with an elastic element, the two ends are respectively an operating end and a locking end, and the locking end abuts against the latch to realize locking.
The invention has the beneficial effects that: the invention relates to a resetting and fixing device for intracystic condyle fracture, which comprises a resetting device and a correcting and fixing device, wherein the working end of the resetting device is a small-bending drag hook bent towards one side, the working end of the correcting and fixing device is a barb bent backwards, an auxiliary fixing piece which can move at the end of a functional shaft and faces one end of the barb is arranged on a functional shaft connected with the working end, and the auxiliary fixing piece is controlled to move and lock by a base of a handheld handle end through a transmission assembly or by an installed shaft sleeve and a locking bolt;
the resetting and fixing device for the intracystic condyle fracture has a reasonable angle and sufficient strength, the front end of the resetting device is similar to a small curved draw hook and can extend into the front and the lower parts of the fractured condyles, the muscle is resisted through soft traction, the traction angle is continuously adjusted, and the fractured condyles are gradually and preliminarily reset, so that the muscle can be effectively resisted for traction, the slippage is avoided, and the damage of forceps clamps to bone is also avoided; the components are matched, after the fracture block is preliminarily reset by the resetting device, the correcting and fixing device is used for continuous alignment, the rotation of the fracture block is resisted by the added small elbow, the fracture block is prevented from slipping by the small metal convex teeth on the inner surface, and ideal fracture block resetting is realized; after the reduction is finished, the auxiliary fixing piece is adjusted until the external side of the condyle is stably clamped, the external side of the condyle and the internal polar bone block are fully clamped and temporarily fixed, the auxiliary fixing piece can be clamped or loosened, the fracture block is convenient to adjust, and the operation of a bone dynamic system cannot be shielded; thereby creating a stable and good operating environment for the next step of the intervention of the bone dynamic system.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of an intracondylar fracture reduction and fixation device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a resetting device according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a fixing device according to an embodiment of the present invention;
FIG. 4 is a schematic structural and sectional view of a functional shaft according to an embodiment of the present invention;
FIG. 5 is a schematic view of the connection between the auxiliary fixing member, the functional shaft and the base according to the embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a transmission assembly according to an embodiment of the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 6 at A according to the present invention;
FIG. 8 is a schematic view of the structure of the fixing shaft, the adjusting knob and the locking knob according to the embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a fixing device according to an embodiment of the present invention;
FIG. 10 is a schematic view of another embodiment of the present invention;
FIG. 11 is a schematic view of another embodiment of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-a resetting device, 2-a correcting fixing device, 201-a connecting rod, 202-a latch, 3-a handle, 4-a functional shaft, 401-a slot, 5-a working end, 501-a small-curve draw hook, 502-a barb, 503-a convex tooth, 6-an auxiliary fixing piece, 601-a shaft sleeve, 602-a locking bolt, 603-a connecting sleeve, 603-a latch locking piece, 7-a base, 8-a transmission component, 801-a movable shaft, 802-a transmission rod, 803-a rack, 804-a gear, 805-a pin groove, 806-a fixed shaft, 807-an adjusting knob, 808-a thread and 809-a locking knob.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-11
The utility model provides a reset and fixing device of intercondylar cyst internal fracture, including resetting means 1 and correction fixing device 2, the main part of resetting means 1 and correction fixing device 2 includes handheld handle 3, the work end 5 of functional shaft 4 and anterior segment, the work end 5 of resetting means 1 is the little curved drag hook 501 of lateral bending, the work end 5 of correction fixing device 2 device is barb 502 of backward recurvation, install on the functional shaft 4 that is connected with work end 5 can be at the activity of functional shaft 4 end and towards the auxiliary fixture 6 of barb 502 one end, the auxiliary fixture 6 is controlled activity and locking by the base of handheld handle 3 end or its own 7.
The auxiliary fixing member 6 of the correction fixing device 2 is mounted on the functional shaft 3 through a shaft sleeve 601, and a locking bolt 602 is provided on the shaft sleeve 601.
The front end of the correcting and fixing device 2 is a connecting rod 201, the inner side of the connecting rod 201 is provided with concave latch 202 for controlling the auxiliary fixing piece 6 to move and lock, the auxiliary fixing piece 6 comprises a connecting sleeve 603 and a latch locking piece 604, the spacing of the latch 202 on the inner side of the connecting rod 201 is uniform, the total length is 1-2cm, the connecting sleeve 603 is installed on the connecting rod 201, the inner side is opened and turned inwards to slide on the connecting rod 201, the rear end face of the auxiliary fixing piece 6 is provided with the latch locking piece 604, the latch locking piece 604 is in a strip shape with the middle bent, the middle is installed through an elastic element, the two ends are respectively an operating end and a locking end, and the locking end abuts against the latch 202 to realize locking.
The auxiliary fixing part 6 of the correcting and fixing device 2 is controlled by a transmission component 8 arranged in the functional shaft 3 and a base 7 at the end of the handheld handle 3; the functional shaft 3 is of a hollow structure, a slot 401 is cut at the front end, a transmission assembly 8 is arranged in the functional shaft, an auxiliary fixing piece 6 is installed in the transmission assembly and penetrates out of the slot 401, the transmission assembly 8 comprises a movable shaft 801 which is connected with the auxiliary fixing piece 6 and is attached to the inner wall of the functional shaft 4, a transmission rod 802 and the movable shaft 801 are sequentially installed at the rear end of the movable shaft 801 at intervals, the movable shaft 801 at the rearmost end is connected with a rack 803 in a base 7 at the end of the handheld handle 3, a meshed gear 804 is installed on the rack 803 of the base 7, and the center of the gear 804 penetrates through two ends of a fixed shaft 806 and penetrates out of the base 7 and is respectively;
the length of a movable shaft 801 connected with the auxiliary fixing piece 6 at the front end of the transmission assembly 8 is 2-3 times of that of a functional shaft slot 401, the auxiliary fixing piece 6 is installed in the middle of the auxiliary shaft slot, the free stroke of the auxiliary fixing piece 6 in the slot 401 is 1-2cm, and the slot 401 is not more than one fourth of the section of the functional shaft 4;
the movable shaft 801 of the transmission assembly 8 is in clearance fit with the inner wall of the functional shaft 4, and the diameter of the transmission rod 802 is smaller than that of the movable shaft;
the inner ring of the gear 803 is a hollow structure, pin grooves 805 are symmetrically formed in the upper and lower parts of the inner ring, protruding pins are arranged on the fixed shaft 806 in a matched mode, an adjusting knob 807 is fixedly arranged at one end of the fixed shaft 806 to drive the gear 804 to rotate, threads 808 are formed in the other end of the fixed shaft 806, and a locking knob 809 which can rotate to the outer wall of the base 7 to achieve locking is arranged at the other end of the fixed shaft.
The inner sides of the barb 502 and the small bending hook 501 are provided with convex teeth 503.
The technical scheme of the invention is explained by combining the specific embodiment as follows:
example 1
A method for reducing and fixing the intracondylar eminence fracture of the intracondylar eminence fracture reduction and fixation device comprises the following steps:
after the reduction device 1 preliminarily reduces the fracture block, the correction fixing device 2 is used for continuous alignment, the rotation of the bone block is resisted by the added small bending drag hook 501, the slippage of the bone block is avoided by the convex teeth 503 on the inner surface, and ideal bone block reduction is realized;
after the reduction is completed, the auxiliary fixing part 6 of the correction fixing device 3 is adjusted until the external side of the condyle is stably clamped, and the external side of the condyle and the internal polar bone block are sufficiently clamped and temporarily fixed, so that a stable and good operation environment is created for the intervention of a next bone dynamic system.
The principle of the transmission assembly is as follows: the rack and pinion structure at the rear end drives the rack to move forwards or backwards through the rotation of the gear and the connected adjusting knob, so as to drive the movable shaft and the transmission rod at the front end to move forwards and backwards, and the other end of the fixed shaft on the gear is provided with threads and is provided with a locking knob which can rotate to the outer wall of the base to realize locking;
the movement and locking of the shaft sleeve and the locking bolt on the functional shaft are controlled by the locking bolt;
the auxiliary fixing part principle of the correction fixing device is as follows: the length of a movable shaft connected with the auxiliary fixing piece at the front end of the transmission assembly is 2-3 times of that of the groove of the functional shaft, the movable shaft can stably move in the functional shaft due to the specification of the movable shaft and cannot be separated, and the auxiliary fixing piece is arranged in the middle of the auxiliary fixing piece and can move in the free stroke of the groove to be matched with the barb end to realize correction and reset.
Example 2
As shown in fig. 10-11
The front end of the correcting and fixing device 2 is a connecting rod 201, the inner side of the connecting rod 201 is provided with concave latch 202 for controlling the auxiliary fixing piece 6 to move and lock, the auxiliary fixing piece 6 comprises a connecting sleeve 603 and a latch locking piece 604, the spacing of the latch 202 on the inner side of the connecting rod 201 is uniform, the total length is 1-2cm, the connecting sleeve 603 is installed on the connecting rod 201, the inner side is opened and turned inwards to slide on the connecting rod 201, the rear end face of the auxiliary fixing piece 6 is provided with the latch locking piece 604, the latch locking piece 604 is in a strip shape bent in the middle, the middle is installed through an elastic element, the two ends are respectively an operating end and a locking end, and the locking end abuts against the latch 202 to realize locking.
During operation, the auxiliary fixing member 6 can move on the connecting rod 201 at the front end of the correcting and fixing device 2, at this time, the locking end of the latch locking member 604 leaves the latch 202 so that the auxiliary fixing member can move freely, and when the auxiliary fixing member is adjusted to a proper position, the operation end of the latch locking member 604 is pressed or lifted to control the locking end of the latch locking member 604 to be clamped on the latch 202 so as to lock the relative position of the latch and the hook head end for resetting and temporary fixing.
Example 3
The utility model provides a reset and fixing device of intercondylar cyst internal fracture, including resetting means 1 and correction fixing device 2, the main part of resetting means 1 and correction fixing device 2 includes handheld handle 3, the work end 5 of functional shaft 4 and anterior segment, the work end 5 of resetting means 1 is the little curved drag hook 501 of lateral bending, the work end 5 of correction fixing device 2 device is barb 502 of backward recurvation, install on the functional shaft 4 that is connected with work end 5 can be at the activity of functional shaft 4 end and towards the auxiliary fixing piece 6 of barb 502 one end, the auxiliary fixing piece 6 is controlled activity and locking by base 7 of handheld handle 3 end or itself.
The specific operation of the method for reducing and fixing the intracondylar eminence fracture of the device for reducing and fixing the intracondylar eminence fracture is as follows:
designing an anterior tragus incision in a conventional way, entering behind superficial temporal arteries and veins, dissecting and protecting facial nerve branches, exposing a joint capsule, cutting the joint capsule, exposing the outer side of a condyle, and gently probing a condyle fracture block inwards, downwards and forwards;
a reduction device is placed in the condyle fracture block, and is placed in the upper part, the lower part and the front part of the condyle fracture block, and is slowly drawn backwards and upwards to reduce the condyle fracture block initially, so that poor blood supply of the bone block caused by excessive separation of muscle attachment is avoided;
keeping the resetting device in place, simultaneously placing the correction fixing device, and further adjusting the angle of the condylar fracture block through the small bending parts to achieve the ideal resetting position;
the external side of the condyle is clamped stably by the auxiliary fixing piece, and the external side of the condyle and the internal polar bone block are sufficiently clamped and temporarily fixed;
the principle of fixation is as follows: the rack and pinion structure at the rear end drives the rack to move forwards or backwards through the rotation of the gear and the connected adjusting knob, so as to drive the movable shaft and the transmission rod at the front end to move forwards and backwards, and the other end of the fixed shaft on the gear is provided with threads and is provided with a locking knob which can rotate to the outer wall of the base to realize locking;
the auxiliary fixing member 6 is movable on the connecting rod 201 at the front end of the correcting fixing device 2, the locking end of the latch locking member 604 leaves the latch 202 so that the auxiliary fixing member can move freely, and when the auxiliary fixing member is adjusted to a proper position, the operation end of the latch locking member 604 is pressed or lifted to control the locking end of the latch 604 to be clamped on the latch 202 so as to lock the relative position of the latch 202 and the hook head end for resetting and temporarily fixing.
The bone power system is used for punching, the bone cortex outside the condyle and the fracture block inside the condyle are penetrated, and the long titanium nail is screwed in and fixed in the condyle. Generally, two titanium nails with angles are punched to penetrate and fix the condyles, so that the bone blocks are prevented from being stressed, rotated and loosened after the operation;
stopping bleeding conventionally, performing layered contraposition suture, and keeping a negative pressure drainage tube.
The resetting and fixing device for the intracystic condyle fracture has a reasonable angle and sufficient strength, the front end of the resetting device is similar to a small curved draw hook and can extend into the front and the lower parts of the fractured condyles, the muscle is resisted through soft traction, the traction angle is continuously adjusted, and the fractured condyles are gradually and preliminarily reset, so that the muscle can be effectively resisted for traction, the slippage is avoided, and the damage of forceps clamps to bone is also avoided; the components are matched, after the fracture block is preliminarily reset by the resetting device, the correcting and fixing device is used for continuous alignment, the rotation of the fracture block is resisted by the added small elbow, the fracture block is prevented from slipping by the small metal convex teeth on the inner surface, and ideal fracture block resetting is realized; after the reduction is finished, the auxiliary fixing piece is adjusted until the external side of the condyle is stably clamped, the external side of the condyle and the internal polar bone block are fully clamped and temporarily fixed, the auxiliary fixing piece can be clamped or loosened, the fracture block is convenient to adjust, and the operation of a bone dynamic system cannot be shielded; thereby creating a stable and good operating environment for the next step of the intervention of the bone dynamic system.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The utility model provides a condyle cyst reduction of internal fracture and fixing device which characterized in that: including resetting means and correction fixing device, resetting means and correction fixing device's main part are including the work end of handing handle, function axle and anterior segment, and resetting means's work end is the little curved drag hook to one side bending, and correction fixing device's work end is the barb of backward recuring, and the epaxial installation of function of being connected with the work end can be in the activity of function axle head and towards the auxiliary fixtures of barb one end, and auxiliary fixtures is controlled the activity and is locked by the base of handing the handle end or itself.
2. The intracondylar fracture reduction and fixation device of claim 1, wherein: the auxiliary fixing piece of the correction fixing device is arranged on the functional shaft through a shaft sleeve, and a locking bolt is arranged on the shaft sleeve.
3. The intracondylar fracture reduction and fixation device of claim 1, wherein: the front end of the correction fixing device is a joint rod, the inner side of the joint rod is provided with a sunken latch for controlling the auxiliary fixing piece to move and lock, the auxiliary fixing piece comprises a joint sleeve and a latch locking piece, the inner side of the joint rod is uniform in latch interval and 1-2cm in total length, the joint sleeve is installed on the joint rod, an inner side opening is inwards folded and can slide on the joint rod, the latch locking piece is installed on the rear end face of the auxiliary fixing piece, the latch locking piece is a strip bent in the middle and installed through an elastic element, the two ends are respectively an operating end and a locking end, and the locking end abuts against the latch to achieve locking.
4. The intracondylar fracture reduction and fixation device of claim 1, wherein: the auxiliary fixing piece of the correcting and fixing device is controlled by a transmission assembly arranged in the functional shaft and a base of the handheld handle end; the utility model discloses a handle of a motor vehicle, including the fixed axle, the fixed axle is equipped with the function axle, the function axle is hollow structure, and the front end is cut open and is established a fluting, and built-in transmission assembly and installation auxiliary fixtures wear out from the fluting, transmission assembly includes and is connected and laminate the loose axle of function axle inner wall with auxiliary fixtures, and the loose axle rear end is interval installation transfer line and loose axle in proper order, and the loose axle of rearmost end is connected with the rack in the base of handheld handle end, is located the rack of base and installs the gear of meshing, and the gear center passes a fixed axle both ends and wears out the.
5. The intracondylar fracture reduction and fixation device of claim 4, wherein: the length of a movable shaft connected with the auxiliary fixing piece at the front end of the transmission assembly is 2-3 times of that of the functional shaft groove, the auxiliary fixing piece is installed in the middle of the functional shaft groove, the free stroke of the auxiliary fixing piece in the groove is 1-2cm, and the groove does not exceed one fourth of the section of the functional shaft.
6. The intracondylar fracture reduction and fixation device of claim 4, wherein: the movable shaft of the transmission assembly is in clearance fit with the inner wall of the functional shaft, and the diameter of the transmission rod is smaller than that of the movable shaft.
7. The intracondylar fracture reduction and fixation device of claim 4, wherein: the inner ring of the gear is of a hollow structure, pin grooves are symmetrically formed in the upper portion and the lower portion of the inner ring of the gear, protruding pins are designed on the fixing shaft and are installed in a matched mode, an adjusting knob is fixedly installed at one end of the fixing shaft to drive the gear to rotate, threads are formed in the other end of the fixing shaft, and a locking knob capable of rotating to the outer wall of the base to achieve locking is installed at the other end.
8. The intracondylar fracture reduction and fixation device of claim 1, wherein: and convex teeth are arranged on the inner sides of the barb and the small curved drag hook.
9. The method for reducing and fixing an intracondylar fracture of an intracondylar fracture reduction and fixation device according to any one of claims 1-8, comprising the steps of:
after the fracture block is preliminarily reset by the resetting device, the correction fixing device is used for continuous alignment, the rotation of the fracture block is resisted by the added small elbow, the fracture block is prevented from slipping by the small metal convex teeth on the inner surface, and ideal fracture block resetting is realized;
after the reduction is completed, the auxiliary fixing piece of the correction fixing device is adjusted until the outer side of the condyle is stably clamped, and the outer side of the condyle and the inner polar bone block are sufficiently clamped and temporarily fixed, so that a stable and good operation environment is created for the intervention of a next bone dynamic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911058805.0A CN110974388A (en) | 2019-10-23 | 2019-10-23 | Resetting and fixing device for intracapsular condylar fracture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911058805.0A CN110974388A (en) | 2019-10-23 | 2019-10-23 | Resetting and fixing device for intracapsular condylar fracture |
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| Publication Number | Publication Date |
|---|---|
| CN110974388A true CN110974388A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911058805.0A Pending CN110974388A (en) | 2019-10-23 | 2019-10-23 | Resetting and fixing device for intracapsular condylar fracture |
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| Country | Link |
|---|---|
| CN (1) | CN110974388A (en) |
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