CN104367373A - Reduction fixator for department of orthopedics - Google Patents
Reduction fixator for department of orthopedics Download PDFInfo
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- CN104367373A CN104367373A CN201410640004.6A CN201410640004A CN104367373A CN 104367373 A CN104367373 A CN 104367373A CN 201410640004 A CN201410640004 A CN 201410640004A CN 104367373 A CN104367373 A CN 104367373A
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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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Abstract
The invention discloses a reduction fixator for the department of orthopedics. The reduction fixator mainly comprises a driving alignment mechanism, a driven alignment mechanism, a spicule locking mechanism, a bone nail locking mechanism, several spicules and bone nails. The driving alignment mechanism is mainly composed of a ring I, a ring II, a reinforcing ring and several sets of stretching and pressurizing rods. The driven alignment mechanism is mainly composed of a ring III and several sets of telescoping rods. In the process of operation, the spicules are bit into the two ends of a fractured skeleton respectively at intervals in a crossed mode, the spicule locking mechanism fixes the spicules on the ring I and the ring III respectively, then, the driving alignment mechanism stretches the skeleton, and the two ends of the fractured skeleton are accurately aligned through the functions of telescoping, rotating, transverse moving and angle swinging of the driven alignment mechanism, and the fractured ends are moved, pressurized and locked through the driving alignment mechanism. The reduction fixator can promote skeleton growth and enable a patient to be cured quickly by utilizing the moving and pressurizing functions, and shorten the operation time through quick, flexible and accurate alignment of the driven alignment mechanism; the reduction fixator is easy, convenient and quick to operate, stable and reliable.
Description
Technical field
The present invention relates to orthopedic medical device field.
Background technology
At present, in the treatment of the reduction of the fracture, generally adopt reduction fixture device more, this reduction fixture device is primarily of expansion link, the up and down composition such as ring or framework, needle locking mechanism and spicule, connected by single ball-joint expansion link or two ball-joint expansion link between upper and lower ring, and then on upper and lower ring and expansion link, needle locking mechanism and spicule are installed.But the reduction fixture device connected by single ball-joint expansion link, owing to expansion link only there being a ball-joint, reduction fixture device can only deflection one angle, cannot rotate and translation, and make fracture site para-position weak effect.By the reduction fixture device that two ball-joint expansion link connects, bone reduction fixator with multi-direction regulating function as described in patent document ZL200420003120.9, although achieve rotation and the translation of reduction fixture device, but its expansion link is screw connection structure, namely relatively rotated the adjustment realizing length of telescopic bar by bolt and nut, during fracture site para-position, this regulative mode operating time is long and loaded down with trivial details.
Summary of the invention
The invention discloses a kind of orthopaedics reduction holder overcome above-mentioned defect and innovated more New function, it mainly comprises initiatively positioning mechanism, passive positioning mechanism, needle locking mechanism, pinning mechanism, spicule and nail.
Described active positioning mechanism forms hereinafter referred to as ring two, reinforcing ring, stretching pressurization bar hereinafter referred to as ring one, middle retainer ring group primarily of near-end retainer ring group.Described ring one, ring two and reinforcing ring have upper and lower two plane-parallel pancake annulus or semi-ring and other annulars, or be formed by connecting by semi-ring, and ring is provided with several circular hole of through two planes and the hole of arc long slot bore or other shapes.Described ring one, ring two and reinforcing ring can be set to semi-ring or the domain respectively, or are set to the ring group of being fixed by several semi-ring or domain interval.Reinforcing ring is for reinforcing stretching pressurization bar, and its position is adjustable.Connected by stretching pressurization bar between described ring one, reinforcing ring, ring two.Several spicules are each passed through the skeleton at fracture two ends, and are individually fixed in by needle locking mechanism in the plane of ring one, ring two and reinforcing ring.In the plane of ring one, ring two and reinforcing ring and on the bar type component such as stretching pressurization bar, described pinning mechanism all can be installed, for locking described nail and by nail fix bone and Bone broken.Described stretching pressurization bar has number cover, and it is primarily of rotary handle, mobile jib, nut, packing ring, silk braid, back of the body cap, secondary bar, ball cap composition.Described silk braid is installed on ring one, ring two respectively, silk braid endoporus is screw thread, and profile one end is provided with screw thread, and the other end is provided with the shaft shoulder being greater than this diameter of thread, this is thread through the hole on described ring one or two, ring, and to be carried on the back respectively by silk braid by described back of the body cap and be tightly fixed on ring one, ring two.One end of described mobile jib is provided with external screw thread, for connecting ball cap, this thread head is provided with ball-and-socket and is connected with described secondary bar by ball pivot, the other end is provided with driving screw, this driving screw is through the hole reinforced on anchor ring, and described packing ring and nut are housed on the screw rod at two ends, hole, for the lengthwise position of adjustable rooting ring and fixing with mobile jib, then driving screw be threaded through successively described in be fixed on silk braid on ring one and described nut, this nut is used for fastening mobile jib and silk braid, then in driving screw front end, rotary handle is installed, for rotating mobile jib.Described secondary bar is provided with sub-screw, one end of this sub-screw is provided with bulb, by described ball cap, described bulb is connected with the ball-and-socket ball pivot of described mobile jib, the silk braid on ring two and described nut is fixed on described in the other end of sub-screw is threaded through successively, this nut is used for fastening secondary bar and silk braid, then in sub-screw front end, rotary handle is installed, for revolute bar.Described ball cap is hexagon or other shapes, and endoporus one end is provided with screw thread, and screw thread inner end is provided with ball-and-socket, is provided with the through hole being less than ball-and-socket diameter between ball-and-socket to other end, and ball cap overlapped described sub-screw and is threaded onto on mobile jib, by secondary bar and mobile jib ball pivot.Now rotate each mobile jib when making it extend or shorten simultaneously, ring two will be made to carry out longitudinal translation, when rotating the mobile jib of any a set of described stretching pressurization bar and secondary bar separately, when making it elongate or shorten to its ball pivot direction, ring two and ring one can relative movement angulations simultaneously.
Described passive positioning mechanism forms hereinafter referred to as ring three and number cover expansion link primarily of far-end retainer ring.Described ring three structure is identical with ring one, itself and described ring two ball pivot is linked into an integrated entity by described expansion link.Its technical characteristics of described expansion link is to have employed tooth lock technology, and expansion link mainly comprises sleeve pipe, ratch, tooth lock dog, jump ring, lock nut, club, ball cap, packing ring and nut.Described ratch one end is provided with external screw thread and its end face is provided with ball-and-socket, and by described club, ball cap, packing ring and nut and ring two or ring three ball pivot, the other end is tooth bar, and tooth bar body is cylindric also can be rectangle or other shapes, and tooth bar coordinates with casing tube internal hole and inserts sleeve pipe.Described sleeve pipe two ends are equipped with external screw thread, wherein one end end face is provided with ball-and-socket, and by described club, ball cap, packing ring and nut and ring three or ring two ball pivot, the other end is provided with the groove vertical with casing axis direction near the face of cylinder of screw thread inner end, and makes the profile of tooth of tooth bar protrude groove floor.Described tooth lock dog inserts described groove, its thickness and recess width are slidably matched, be provided with inside it lock tooth and tooth bar match, profile of tooth be triangle or pull and push tooth bar time be easy to push open the shape of tooth lock dog, be communicated with sleeve pipe outside it and be provided with jump-ring slot, and snap in described jump ring and prevent tooth lock dog from coming off, be also provided with the conical surface outside tooth lock dog and coordinate with described lock nut.Described lock nut endoporus one end is provided with straight mouth for blocking jump ring, Zhi Kou inner end is provided with taper hole, taper hole large mouth diameter is less than straight mouth, taper hole osculum is provided with screw thread between the lock nut other end, this is threaded into the reeded one end of described sleeve belt, taper hole is overlapped with the male cone (strobilus masculinus) of tooth lock dog, by positive and negative rotation lock nut, tooth lock dog is made to be pressed into and to unclamp, when tooth lock dog is pressed into, ratch is by firm locking, after unclamping when pulling and pushing ratch, tooth lock dog can be pushed open by tooth bar, thus make expansion link can sliding extension, then realize passive positioning mechanism and be driven in ring two, ring three, reach ring three can rotate relative to ring two, translation, mobile angulation, also can by firm locking.Described club is provided with screw rod, and screw rod one end is provided with the shaft shoulder, and shaft shoulder end face is provided with bulb.Described ball cap overlapped the club shaft shoulder and connected ratch or sleeve pipe, was connected by club with its ball pivot.Ball pivot angled to expansion link and ring two, ring three, through the hole on ring two or ring three, is connected through packing ring and nut, forms orthopaedics reduction holder of the present invention by the screw rod of described club.
A kind of orthopaedics reduction of the present invention holder, limbs of patient can be inserted according to the needs entirety of operation during operation, or distinguish fastens from the side of limbs, again by several spicules respectively space crossings squeeze into fracture two ends skeleton, and it is by needle locking mechanism, spicule is fixing with on ring one and ring three respectively, then rotate mobile jib by active positioning mechanism, skeleton to be pulled open, stretched by passive positioning mechanism again, rotate, translation, mobile angulation function, to fracture two ends accurate contraposition, then described lock nut is rotated by passive to being mechanism's locking, locked after the nail para-position of squeezing into Bone broken by pinning mechanism again, then described mobile jib is reversely rotated, by active positioning mechanism, fracture end is pressurizeed, and by described nut by mobile jib, secondary bar and silk braid are carried on the back and are fastened, adjustable rooting ring position being fixed by described packing ring and nut check afterwards, to strengthen the intensity of initiatively positioning mechanism.This orthopaedics reduction holder overcomes the defect of aforementioned similar apparatus, stretching, rotation, translation, mobile angulation function is utilized to make para-position accurate during operation, sliding extension function is utilized to make alignment operation fast, tooth lock function is utilized to make locking firm, skeleton growth makes patient cure soon to utilize pressurization function to promote, reaches shortening operating time, shortens healing time, simple and efficient to handle, the object such as reliable and stable.Use this orthopaedics reduction holder, Limb lengthening operation can also be completed.
Accompanying drawing explanation
Fig. 1 is the first embodiment schematic perspective view of a kind of orthopaedics reduction of the present invention holder, shows its overall structure;
Fig. 2 is the structural representation of expansion link;
Fig. 3 is the enlarged diagram of tooth lock dog;
Fig. 4 is the partial structurtes enlarged diagram of Fig. 2;
Fig. 5 is the structural representation of sleeve pipe;
Fig. 6 is the second embodiment schematic perspective view of a kind of orthopaedics reduction of the present invention holder;
Fig. 7 is the third embodiment schematic perspective view of a kind of orthopaedics reduction of the present invention holder;
In accompanying drawing: I is positioning mechanism initiatively, II is passive to being mechanism, 1 stretching pressurization bar, 2 needle locking mechanisms, 3 spicules, 4 rings one, 5 nails, 6 pinning mechanisms, 7 reinforcing rings, 8 rings two, 9 expansion links, 10 rings three, 11 screw rods, 12 supporting plates, 13 move ring, 1-1 rotary handle, 1-2 mobile jib, 1-3 nut, 1-4 silk braid, 1-5 carries on the back cap, 1-6 packing ring, 1-7 ball cap, the secondary bar of 1-8, 1-8-1 bulb, 9-1 sleeve pipe, 9-1-1 casing tube internal hole, 9-1-2 groove, 9-2 ratch, 9-2-1 tooth bar, 9-3 tooth lock dog, 9-3-1 jump-ring slot, the 9-3-2 conical surface, 9-3-3 locks tooth, 9-4 jump ring, 9-5 lock nut, 9-5-1 taper hole, 9-6 club, 9-7 packing ring, 9-8 nut.
Detailed description of the invention
Elaborate below in conjunction with three kinds of embodiments of accompanying drawing to a kind of orthopaedics reduction of the present invention holder.
The first embodiment of a kind of orthopaedics of the present invention reduction holder as shown in Figures 1 to 5 this orthopaedics reduction holder mainly comprises initiatively positioning mechanism I, passive positioning mechanism II, needle locking mechanism 2 pinning mechanism 6, spicule 3 and nail 5.
Described active positioning mechanism I forms hereinafter referred to as ring 28, reinforcing ring 7, stretching pressurization bar 1 hereinafter referred to as ring 1, middle retainer ring group primarily of near-end retainer ring group.Described ring 1, ring 28 and reinforcing ring 7 have upper and lower two plane-parallel pancake annulus, and ring is provided with several circular hole of through two planes and the hole of arc long slot bore or other shapes.Described ring 1, ring 28, reinforcing ring 7 can be set to semi-ring or the domain, or are set to the ring group of being fixed by several semi-ring or domain interval.Reinforcing ring 7 is for reinforcing stretching pressurization bar 1, and its position is adjustable.Connected by stretching pressurization bar 1 between described ring 1, reinforcing ring 7, ring 28.Several spicules 3 are each passed through the skeleton at fracture two ends, and are individually fixed in by needle locking mechanism 2 in the plane of ring 1, ring 28 and reinforcing ring 7.In the plane of ring 1, ring 28 and reinforcing ring 7 and on the bar type component such as stretching pressurization bar 1, described pinning mechanism 6 all can be installed, for locking described nail 5 and by nail 5 fix bone and Bone broken.Described stretching pressurization bar 1 has three covers, and it forms primarily of rotary handle 1-1, mobile jib 1-2, nut 1-3, silk braid 1-4, back of the body cap 1-5, packing ring 1-6, ball cap 1-7, secondary bar 1-8.Described silk braid 1-4 is installed on ring 1, ring 28 respectively, silk braid 1-4 endoporus is screw thread, profile one end is provided with screw thread, the other end is provided with the shaft shoulder being greater than this diameter of thread, this is thread through the hole on described ring 1 or 28, ring, and to be carried on the back respectively by silk braid 1-4 by described back of the body cap 1-5 and be tightly fixed on ring 1, ring 28.One end of described mobile jib 1-2 is provided with external screw thread, for connecting ball cap 1-7, this thread head is provided with ball-and-socket and is connected with described secondary bar 1-8 by ball pivot, the other end is provided with driving screw, this driving screw is through the hole on reinforcing ring 7, and described packing ring 1-6 and nut 1-3 is housed on the screw rod at two ends, hole, for the lengthwise position of adjustable rooting ring 7 and fixing with mobile jib 1-1, then driving screw be threaded through described in be fixed on silk braid 1-4 on ring 1 and described nut 1-3, this nut 1-3 is used for fastening mobile jib 1-2 and silk braid 1-4, then in driving screw front end, rotary handle 1-1 is installed, for rotating mobile jib 1-2.Described secondary bar 1-8 is provided with sub-screw, one end of this sub-screw is provided with bulb 1-8-1, by described ball cap 1-7, described bulb 1-8-1 is connected with the ball-and-socket ball pivot of described mobile jib 1-2, the silk braid 1-4 on ring 28 and described nut 1-3 is fixed on described in the other end of sub-screw is threaded through, this nut 1-3 is used for fastening secondary bar 1-8 and silk braid 1-4, then in sub-screw front end, rotary handle 1-1 is installed, for revolute bar 1-8.Described ball cap 1-7 is hexagon or other shapes, endoporus one end is provided with screw thread, and screw thread inner end is provided with ball-and-socket, is provided with the through hole being less than ball-and-socket diameter between ball-and-socket to other end, ball cap 1-7 overlapped described sub-screw and was threaded onto on mobile jib 1-2, by secondary bar 1-8 and mobile jib 1-2 ball pivot.Now rotate each mobile jib 1-2 when making it extend or shorten simultaneously, ring 28 will be made to carry out longitudinal translation, when rotating the mobile jib 1-2 of any a set of described stretching pressurization bar 1 and secondary bar 1-8 separately, when making it elongate or shorten to its ball pivot direction, ring 28 and ring 1 can relative movement angulations simultaneously.
Described passive positioning mechanism II forms hereinafter referred to as ring 3 10 and six cover expansion links 9 primarily of far-end retainer ring.Described ring 3 10 structure is identical with ring 1, itself and described ring 28 ball pivot is linked into an integrated entity by described expansion link 9.Described its technical characteristics of expansion link 9 is to have employed tooth lock technology, and expansion link 9 mainly comprises sleeve pipe 9-1, ratch 9-2, tooth lock dog 9-3, jump ring 9-4, lock nut 9-5, club 9-6, ball cap 1-7, packing ring 9-7 and nut 9-8.Described ratch 9-2 one end is provided with external screw thread and its end face is provided with ball-and-socket, and by described club 9-6, ball cap 1-7, packing ring 9-7 and nut 9-8 and ring 28 or ring 3 10 ball pivot, the other end is tooth bar 9-2-1, tooth bar body is cylindric also can be rectangle or other shapes, and tooth bar 9-2-1 coordinates with casing tube internal hole 9-1-1 and inserts sleeve pipe 9-1.Described sleeve pipe 9-1 two ends are equipped with external screw thread, wherein one end end face is provided with ball-and-socket, and by described club 9-6, ball cap 1-7, packing ring 9-7 and nut 9-8 and ring 3 10 or ring 28 ball pivot, the other end is provided with the groove 9-1-2 vertical with sleeve pipe 9-1 axis direction near the face of cylinder of screw thread inner end, and makes the profile of tooth of tooth bar 9-2-1 protrude groove 9-1-2 bottom surface.Described tooth lock dog 9-3 inserts described groove 9-1-2, its thickness and groove 9-1-2 width are slidably matched, be provided with lock tooth 9-3-3 and tooth bar 9-2-1 inside it to match, profile of tooth be triangle or pull and push tooth bar 9-3-1 time be easy to push open the shape of tooth lock dog 9-3, be communicated with sleeve pipe 9-1 outside it and be provided with jump-ring slot 9-3-1, and snap in described jump ring 9-4 and prevent tooth lock dog 9-3 from coming off, be also provided with conical surface 9-3-2 outside tooth lock dog 9-3 and coordinate with described lock nut 9-5.Described lock nut 9-5 endoporus one end is provided with straight mouth for blocking jump ring 9-4, Zhi Kou inner end is provided with taper hole 9-5-1, taper hole 9-5-1 large mouth diameter is less than straight mouth, osculum is provided with screw thread between the lock nut 9-5 other end, this is threaded into described sleeve pipe 9-1 one end with fluted 9-1-2, taper hole 9-5-1 is overlapped with the male cone (strobilus masculinus) 9-3-2 of tooth lock dog 9-3, by positive and negative rotation lock nut 9-5, tooth lock dog 9-3 is made to be pressed into and to unclamp, when tooth lock dog 9-3 is pressed into, ratch 9-2 is by firm locking, after unclamping when pulling and pushing ratch 9-2, tooth lock dog 9-3 can be pushed open by tooth bar 9-2-1, thus make expansion link 9 can sliding extension, then realize passive positioning mechanism and be driven in ring 28, ring 3 10, reach ring 3 10 can stretch relative to ring 28, rotate, translation, the object of angulation, can also by firm locking.Described club 9-6 is provided with screw rod, and screw rod one end is provided with the shaft shoulder, and shaft shoulder end face is provided with bulb.The shaft shoulder that described ball cap 1-6 overlapped club 9-6 connects ratch 9-2 or sleeve pipe 9-1, is connected by club 9-6 with its ball pivot.Expansion link 9, through the hole on ring 28 or ring 3 10, is connected with ring 28, the angled ball pivot of ring 3 10 with nut 9-8 through packing ring 9-7, forms orthopaedics reduction holder of the present invention by the screw rod of described club 9-6 respectively.
A kind of orthopaedics reduction of the present invention holder, limbs of patient can be inserted according to the needs entirety of operation during operation, or distinguish fastens from the side of limbs, again by several spicules 3 respectively space crossings squeeze into fracture two ends skeleton, and it is by needle locking mechanism 2, spicule 3 is fixing with on ring 1 and ring 3 10 respectively, then rotate mobile jib 1-2 by active positioning mechanism I, skeleton to be pulled open, stretching again by passive positioning mechanism II, rotate, translation, mobile angulation function, to fracture two ends quick and precisely para-position, then rotate described lock nut 9-3 to lock passive for mechanism II, locked after nail 5 para-position of squeezing into Bone broken by pinning mechanism 6 again, then described mobile jib 1-2 is reversely rotated, by active positioning mechanism I, fracture end is pressurizeed, and by described nut 1-3 by mobile jib 1-2, secondary bar 1-8 and silk braid 1-4 is locked, the position of adjustable rooting ring 7 is also locked by described packing ring 1-6 and nut 1-3 afterwards, to strengthen the intensity of initiatively positioning mechanism I, this orthopaedics reduction holder overcomes the defect of aforementioned similar apparatus, utilize during operation and stretch, rotate, translation, mobile angulation function makes para-position accurate, sliding extension function is utilized to make alignment operation fast, tooth lock function is utilized to make locking firm, skeleton growth makes patient cure soon to utilize pressurization function to promote, reach shortening operating time, shorten healing time, simple and efficient to handle, the object such as reliable and stable.Use this orthopaedics reduction holder, Limb lengthening operation can also be completed.
The second embodiment of a kind of orthopaedics reduction of the present invention holder as shown in Figure 2, this orthopaedics reduction holder is mainly used in treating the patient not needing skeleton translation and rotation, its feature mainly eliminates the passive positioning mechanism II in the first embodiment, only with active positioning mechanism I.Being changed into by the spicule 3 be fixed in the first embodiment on ring 3 10 is fixed on ring 28, only with initiatively positioning mechanism I to not needing skeleton translation, the patient of rotation treats, easy and simple to handle and reduce costs.
As shown in Figure 7, this orthopaedics reduction holder is mainly used in treatment Cranial defect patient to the third embodiment of a kind of orthopaedics reduction of the present invention holder, and its feature mainly makes skeleton automatic increase extend by moving skeleton, thus fills up defect.It mainly comprises stretching pressurization bar 1, needle locking mechanism 2, spicule 3, near-end retainer ring abbreviation ring 1, nail 5, pinning mechanism 6, reinforcing ring 7, far-end retainer ring abbreviation ring 3 10, screw rod 11, supporting plate 12, moves ring 13.Described ring 1, ring 3 10, reinforcing ring 7, move ring 13, that there are upper and lower two plane-parallel pancake annulus or semi-rings, ring is provided with circular hole and the arc long slot bore of several through two planes, described ring 1, ring 3 10, reinforcing ring 7, move ring 13 and can be set to semi-ring or the domain, or be set to by the fixing ring group of several semi-ring or domain interval.Described supporting plate 12 has pieces, is provided with through hole several between its two surface, and one of them is for fixing silk braid 1-4, and the hole being used for fixing silk braid 1-4 for supporting plate 12 being fixed on ring 1 or reinforcing ring 7 by bolt, nut, and is placed in outside ring by all the other.Described screw rod 11 is by nut and packing ring, and described ring 1, reinforcing ring 7, ring 3 10 interval are connected and fixed, and the spacing of each ring is adjustable.Described ring 13 diameter of moving is greater than ring 1, and it is connected with ring 1 with supporting plate 12 by stretching pressurization bar 1, and is arranged between ring 1 and ring 3 10, overlaps and outside described screw rod 11.Several spicule 3 space crossings move skeleton and far-end skeleton through fracture near-end skeleton, stage casing, and are individually fixed in ring 1 by needle locking mechanism 2, move in two planes of ring 13 and ring 3 10.Ring 1, reinforcing ring 7, ring 3 10 and move ring 13 two planes on and the bar type component such as stretching pressurization bar 1 and screw rod 11 all can install pinning mechanism 6, for locking nail 5 and by nail 5 fix bone and Bone broken.Described stretching pressurization bar 1 has three covers to be not limited to three covers, and it is primarily of rotary handle 1-1, mobile jib 1-2, nut 1-3, silk braid 1-4, back of the body cap 1-5, ball cap 1-7, secondary bar 1-8, composition.Described silk braid 1-4 is installed on supporting plate 12 respectively and moves on ring 13, silk braid 1, endoporus is screw thread, profile one end is provided with screw thread, the other end is provided with the shaft shoulder being greater than this diameter of thread, this hole being thread through described supporting plate 12 or moving on 13, ring, and silk braid 1-4 is individually fixed in supporting plate 12 by described back of the body cap 1-5, is moved on ring 13.One end of described mobile jib 1-2 is provided with external screw thread, for connecting ball cap 1-7, this thread head is provided with ball-and-socket and is connected with secondary bar 1-8 by ball pivot, the other end is provided with driving screw, the silk braid 1-4 of supporting plate 12 and described nut 1-3 is fixed on described in this driving screw is threaded through successively, and in driving screw front end, rotary handle 1-1 is installed, for rotating mobile jib 1-2.Described secondary bar 1-8 is provided with sub-screw, one end of this sub-screw is provided with bulb 1-8-1, by described ball cap 1-7, this bulb is connected with the ball-and-socket ball pivot of mobile jib 1-2, be fixed on described in the other end of sub-screw is threaded through successively and move silk braid 1-4 on ring 13 and described nut 1-3, and in sub-screw front end, rotary handle 1-1 is installed, for revolute bar 1-8.
During operation technique, after spicule 3 nail 5 squeezing into skeleton is fixed, rotate each mobile jib 1-2 when making it extend or shorten simultaneously, stage casing will be made to move skeleton carry out longitudinal direction and partly move, when to rotate the mobile jib 1-2 of any a set of stretching pressurization bar 1 and secondary bar 1-8 and make mobile jib 1-2 and secondary bar 1-8 all extend to ball pivot direction or shorten simultaneously, stage casing will be made to move the angled movement of skeleton, realize moving the rectification para-position of damage skeleton, after complete operation by described nut 1-3 by every root mobile jib 1-2, secondary bar 1-8 and silk braid 1-1 locks, and locking is respectively threaded, thus the treatment realized bone defects patient.
Claims (5)
1. an orthopaedics reduction holder, mainly comprise needle locking mechanism (2), pinning mechanism (6), spicule (3) and nail (5), characterized by further comprising initiatively positioning mechanism (I) and passive positioning mechanism (II), described active positioning mechanism (I) primarily of near-end retainer ring group hereinafter referred to as ring one (4), middle retainer ring group is hereinafter referred to as ring two (8), reinforcing ring (7), stretching pressurization bar (1) forms, described ring one (4), ring two (8) and reinforcing ring (7) have upper and lower two plane-parallel pancake annulus or semi-ring and other annulars, ring is provided with several circular hole of through two planes and the hole of arc long slot bore or other shapes, described ring one (4), reinforcing ring (7), connected by stretching pressurization bar (1) between ring two (8), described stretching pressurization bar (1) has number cover, it is primarily of rotary handle (1-1), mobile jib (1-2), nut (1-3), silk braid (1-4), back of the body cap (1-5), packing ring (1-6), ball cap (1-7), secondary bar (1-8) composition, described silk braid (1-4) is installed on ring one (4) respectively, on ring two (8), silk braid (1-4) endoporus is screw thread, profile one end is provided with screw thread, the other end is provided with the shaft shoulder being greater than this diameter of thread, this is thread through the hole on described ring one (4) or ring two (8) face, and by described back of the body cap (1-5) silk braid (1-4) carried on the back respectively and be tightly fixed on ring one (4), on ring two (8), one end of described mobile jib (1-2) is provided with external screw thread, for connecting ball cap (1-7), this thread head is provided with ball-and-socket and is connected with described secondary bar (1-8) by ball pivot, the other end is provided with driving screw, on this, screw rod is through the hole on reinforcing ring (7) face, and described packing ring (1-6) and nut (1-3) are housed on the screw rod at two ends, hole, then driving screw be threaded through successively described in be fixed on silk braid (1-4) on ring one (4) and described nut (1-3), then in driving screw front end, rotary handle (1-1) is installed, described secondary bar (1-8) is provided with sub-screw, one end of this sub-screw is provided with bulb (1-8-1), by described ball cap (1-7), the ball-and-socket ball pivot of described bulb (1-8-1) with described mobile jib (1-2) is connected, the silk braid (1-4) on ring two (8) and described nut (1-3) is fixed on described in the other end of sub-screw is threaded through successively, then in sub-screw front end, rotary handle (1-1) is installed, described ball cap (1-7) is hexagon or other shapes, endoporus one end is provided with screw thread, screw thread inner end is provided with ball-and-socket, ball-and-socket is provided with the through hole being less than ball-and-socket diameter between ball cap (1-7) other end, ball cap (1-7) overlapped described sub-screw and was threaded onto on mobile jib (1-2), by secondary bar (1-8) and mobile jib (1-2) ball pivot, described passive positioning mechanism (II) forms hereinafter referred to as ring three (10) and number cover expansion link (9) primarily of far-end retainer ring, described ring three (10) structure is identical with ring one (4), by described expansion link (9), ring three (10) and described ring two (8) ball pivot are linked into an integrated entity, described expansion link (9) its technical characteristics is to have employed tooth lock technology, expansion link (9) mainly comprises sleeve pipe (9-1), ratch (9-2), tooth lock dog (9-3), jump ring (9-4), lock nut (9-5), club (96), packing ring (9-7), nut (9-8) and ball cap (1-7), described ratch (9-2) one end is provided with external screw thread and its end face is provided with ball-and-socket, and by described club (9-6), ball cap (1-7), packing ring (9-7) and nut (9-8) and ring two (8) or ring three (10) ball pivot, the other end is tooth bar (9-2-1), tooth bar body is cylindric also can be rectangle or other shapes, tooth bar (9-2-1) coordinates with casing tube internal hole (9-1-1) and inserts sleeve pipe (9-1), described sleeve pipe (9-1) two ends are equipped with external screw thread, wherein one end end face is provided with ball-and-socket, and by described club (9-6), ball cap (1-7), packing ring (9-7) and nut (9-8) and ring three (10) or ring two (8) ball pivot, the other end is provided with the groove (9-1-2) vertical with sleeve pipe (9-1) axis direction near the face of cylinder of screw thread inner end, and make the profile of tooth of tooth bar (9-2-1) protrude groove (9-1-2) bottom surface, described tooth lock dog (9-3) inserts described groove (9-1-2), its thickness and groove (9-1-2) width are slidably matched, be provided with lock tooth (9-3-3) inside it to match with tooth bar (9-2-1), profile of tooth be triangle or pull and push tooth bar (9-2-1) time be easy to push open the shape of tooth lock dog (9-3), be communicated with sleeve pipe (9-1) outside it and be provided with jump-ring slot (9-3-1), and snap in described jump ring (9-4) and prevent tooth lock dog (9-3) from coming off, tooth lock dog (9-3) outside is also provided with the conical surface (9-3-2) and coordinates with described lock nut (9-5), described lock nut (9-5) endoporus one end is provided with straight mouth for blocking jump ring (9-4), Zhi Kou inner end is provided with taper hole (9-5-1), the large mouth diameter of taper hole (9-5-1) is less than straight mouth, osculum is provided with screw thread between lock nut (9-5) other end, this is threaded into described sleeve pipe (9-1) one end with fluted (9-1-2), taper hole (9-5-1) is overlapped with the male cone (strobilus masculinus) (9-3-2) of tooth lock dog (9-3), by positive and negative rotation lock nut (9-5), tooth lock dog (9-3) is made to be pressed into and to unclamp, when tooth lock dog (9-3) is pressed into, ratch (9-2) is locked, after unclamping when pulling and pushing ratch (9-2), tooth lock dog (9-3) is pushed open by tooth bar (9-2-1), thus make expansion link (9) can sliding extension, the ring three (10) realizing positioning mechanism (II) can stretch relative to ring two (8), rotate, translation, angulation, described club (9-6) is provided with screw rod, screw rod one end is provided with the shaft shoulder, shaft shoulder end face is provided with bulb.The shaft shoulder that described ball cap (1-7) overlapped club (9-6) connects ratch (9-2) or sleeve pipe (9-1), thus club (9-6) is connected with their ball pivots, expansion link (9), through the hole on ring two (8) or ring three (10), is connected with ring two (8), the angled ball pivot of ring three (10) with nut (9-8) through packing ring (9-7) by the screw rod of described club (9-6).
2. a kind of orthopaedics reduction holder according to claim 1, it is characterized in that described a kind of orthopaedics reduction holder can save passive positioning mechanism (II), only with active positioning mechanism (I), the spicule (3) be fixed on ring three (10) is changed into be fixed on ring two (8) in the first embodiment.
3. a kind of orthopaedics reduction holder according to claim 1, it is characterized in that rotating separately the mobile jib (1-2) of any a set of described stretching pressurization bar (1) and secondary bar (1-8), when making it elongate or shorten to tool ball pivot direction, ring two (8) and ring one (4) can relative movement angulations simultaneously.
4. a kind of orthopaedics reduction holder according to claim 1, characterized by further comprising supporting plate (12) and move ring (13), through hole is provided with several between described supporting plate (12) two surface, one of them is for fixing silk braid (1-4), and all the other are for being fixed on ring by bolt, nut by supporting plate (12)
4 or reinforcing ring (7) on, and the hole being used for fixing silk braid (1-4) is placed in outside ring, described ring (13) diameter of moving is greater than ring one (4), it is connected with ring one (4) with supporting plate (12) by stretching pressurization bar (1), and be arranged between ring one (4) and ring three (10), cover with described screw rod (11) outside.
5. a kind of orthopaedics reduction holder according to claim 4, is characterized in that, described ring
(1), ring two (8), ring three (10), reinforcing ring (7) and move ring (13) and semi-ring or the domain can be set to respectively, or to be set to by the fixing ring group of several semi-ring or domain interval.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410640004.6A CN104367373B (en) | 2014-11-10 | 2014-11-10 | A kind of orthopaedics reduction fixator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410640004.6A CN104367373B (en) | 2014-11-10 | 2014-11-10 | A kind of orthopaedics reduction fixator |
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| CN104367373A true CN104367373A (en) | 2015-02-25 |
| CN104367373B CN104367373B (en) | 2016-08-24 |
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| CN201410640004.6A Active CN104367373B (en) | 2014-11-10 | 2014-11-10 | A kind of orthopaedics reduction fixator |
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| CN107550619A (en) * | 2017-10-24 | 2018-01-09 | 南阳市中心医院 | A kind of orthopaedics fractured leg resetting means |
| CN110495937A (en) * | 2018-05-18 | 2019-11-26 | 武汉德骼拜尔外科植入物有限公司 | Ring external fixation support and fixed device |
| CN112244971A (en) * | 2020-11-11 | 2021-01-22 | 湖南旺旺医院有限公司 | Orthopedics reduction fixer |
| CN112505049A (en) * | 2020-10-14 | 2021-03-16 | 上海互觉科技有限公司 | Mask inhibition-based method and system for detecting surface defects of precision components |
| CN113208794A (en) * | 2021-04-20 | 2021-08-06 | 哈尔滨工业大学 | Lower limb fracture reduction parallel robot |
| DE102021201783A1 (en) | 2021-02-25 | 2022-08-25 | Aesculap Ag | Bone implant system, bone implant and method for producing such a bone implant |
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| CN104367373B (en) | 2016-08-24 |
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