CN205379353U - Be used for damaged bone handling device of big section bone of fine and close patient's shin bone of sclerotin - Google Patents
Be used for damaged bone handling device of big section bone of fine and close patient's shin bone of sclerotin Download PDFInfo
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- CN205379353U CN205379353U CN201521035917.1U CN201521035917U CN205379353U CN 205379353 U CN205379353 U CN 205379353U CN 201521035917 U CN201521035917 U CN 201521035917U CN 205379353 U CN205379353 U CN 205379353U
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Abstract
The utility model discloses a be used for damaged bone handling device of big section bone of fine and close patient's shin bone of sclerotin, squeeze into the interior main nail of marrow of sclerotin including being used for the axial, main nail has the identical range with human shin bone anatomical structure in the marrow, and both ends are opened to have and are used for locking the hole with ordinary set screw complex, the main both ends of following closely are opened and are had fixed screw in the marrow, still include a fixed bolster and a plurality of set screw, the set screw rear end is connected with the fixed bolster, and the front end is connected with the fixed screw cooperation on the interior main nail of marrow, still include and a plurality ofly can follow the main transport needle of following closely axial motion in the marrow, the bone piece and the interior main nail of no show marrow that need slide is radially implanted to transport needle one end, and the other end is connected on the fixed bolster.
Description
Technical field
This utility model relates to a kind of device using bone carrying art treatment long bone large segmental bone defect, especially a kind of device applying to the comparatively dense patient's tibia large segmental bone defect of sclerotin.
Background technology
Long bone large segmental bone defect be phalangeal fracture can not self-heal or be only capable of regeneration 10% Cranial defect, be generally 2-3 times that involves long bone diameter.Large segmental bone defect is generally caused by reasons such as High energy trauma, infection, tumors, is often accompanied by limb shortening, deformity, osteomyelitis, amyotrophy and adjacent joints stiff, one of its repairing and treating the biggest problem being always up field of orthopaedics.Showing according to statistics, in Germany, bone collection operation is that patient the most often accepts one of front 50 kinds of treatments；Patient's about 800,000 example of bone collection operation need to be carried out every year in the U.S.；At China's list every year because wound needs the operation of row bone collection just to exceed 3,000,000 examples；Large segmental bone defect gives patient and brings the injury of huge body and mind and financial burden, and therefore how solving this difficult problem has become the important topic of field of orthopaedics.
The main method of current clinical treatment long bone large segmental bone defect has autologous bone transplanting, Masquelet technology and Ilizarov technology.Autologous bone transplanting has the bone conduction of the best, self-bone grafting and osteogenesis effect, is the standard for the treatment of Cranial defect.But autologous bone amount is limited, bone strength is not good enough, it is difficult to meet the demand of large segmental bone defect.Although the bone collection of anastomosis of blood vessel (such as fibula, ilium, rib etc.) is also the effective ways for the treatment of large segmental bone defect, but this operation wound is big, many for district's complication, bone graft completes moulding and to increase the thick time long, and patient can not early loading, easily there is stress fracture, amyotrophy etc. in the later stage.Additionally, this technological learning curve is long, patient is required of a relatively high, it is impossible to be widely used in clinic, be not therefore the main stream approach for the treatment of large segmental bone defect.The treatment appearing as large segmental bone defect of Masquelet technology provides a kind of new way.This technology is the autologous bone transplanting treatment Segmental Bone Defect utilizing film to assist.This technology is specifically divided into two stages.First stage: implant PMMA bone cement spacer after thoroughly clear, use interior fixing or extenal fixation to be fixed, close wound surface, form induction film.Second stage: cut induction film after 6-8w, remove bone cement spacer, get through pulp cavity, fills autologous spongiosa bone in film, then Guan Bi induction film and otch.This induction film not only has to be avoided bone graft to absorb, maintain bone graft position and stops soft tissue intrusion etc. to act on, and energy can secrete somatomedin and bone-inducing factor promotes bone tissue growth, such as blood vessel endothelial factor, TGF-β 1, BMP-2 etc. [12].Although multinomial clinical research proves that Masquelet technology treatment Cranial defect can obtain certain clinical effectiveness, but there is also very big limitation.This technology is maximum has the disadvantage that in repairing bone defect process to need substantial amounts of autologous bone transplanting, adds operation wound and for district's complication；And this technology can not effectively correct limb shortening and the line of force, also need in conjunction with micro-flap technology if merging large area skin soft tissue defects.Additionally, patient can not take exercise by early loading after surgery, it is easy to the complication such as stress fracture, bone resorption and bone does not connect occur, and the method needs to perform twice at even Repeated Operation, length of patient stay's length, spend high.
The appearance of bone carrying technology is considered as 20th century orthopaedic milestones, and a New Times has been started in the treatment for Cranial defect.Bone carrying technology is created by Russia orthopedist Ilizarov, it then follows the tension force of tissue regeneration-stress rule, meets " bone Natural Reconstruction " theory, is the goldstandard of current clinical treatment long bone large segmental bone defect.The core of bone carrying technology is in that the distraction osteogenesis of Ilizarov support, is specifically divided into three steps: 1. use the fixing suffering limb of Ilizarov support, it is provided that stability, maintenance limbs length and the line of force；2. the metaphysis of pair close Cranial defect carries out low-yield cortex osteotomy；3. regulate Ilizarov support by active bone section according to suitable speed and frequency to Cranial defect stump sliding, draw close, and complete bone defect healing under Ilizarov support is fixing.Compared with autologous bone transplanting art and Masquelet technology, bone carrying technology has the advantage that 1) repairing bone defect length is unrestricted, it is not necessary to autologous bone transplanting, it is to avoid the defect of autologous bone transplanting and Masquelet technology " with repair in trauma wound "；2) this technology can stretching same period soft tissue regeneration, do not need adopt skin flap transplantation repair skin tissue defects；3) support arm can be passed through and correct the cacomelia of various complexity the same period.4) belonging to Minimally Invasive Surgery, curative effect is reliable, low cost.
Though the various complicated Cranial defect determined curative effect of bone carrying technology treatment, there is also more complication, and these complication are closely related with the use of Ilizarov support.The Ilizarov support being currently used for bone carrying technology is mainly ring type exterior fixation bracket and single pole exterior fixation bracket.Ring type exterior fixation bracket is three dimensions configuration, and fixed, stress distribution is uniform.This support needs to squeeze into several pieces of draw points on the two ends metaphysis and sliding bone piece of long bone, to provide stable, to maintain the effect of limbs length and the line of force.But wear many draw points in many planes and sclerotin can be caused to cut, reduce local bone intensity, it is possible to iatrogenic fracture can be caused；And when many planes penetrate draw point to operating technology require height, damage severely injured want neurovascular risk.The Ilizarov support fixed cycle is long, clinical care difficulty, therefore pin site infection, needle track loosen, fracture and Soft tissue cutting complication often occur.And some patients toleration is poor, the psychic problems such as anxiety, depression be even bigoted easily occur, also having some patients because of the lower ground weight training of the sense of discomfort such as limbs pain, swelling refusal, the later stage is likely to occur the complication such as disuse osteoporosis, refracture, bone delay in healing not even healing.Single pole exterior fixation bracket has simple to operate, easy to carry, pin site infection is few and the advantage such as patient's easily tolerance, is suitable for the Cranial defect that length is less.But single pole exterior fixation bracket mechanical stability is poor, it is impossible to adjust the line of force, suffering limb can not early loading, the later stage may occur in which the complication such as bad, disuse osteoporosis, refracture, the bone delay in healing not even healing of the line of force.
Utility model content
For the technical problem of above-mentioned existence, this utility model provides one for eburnation patient's tibia large segmental bone defect bone Handling device, and sclerotin inserting needle is few, good stability.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of for eburnation patient's tibia large segmental bone defect bone Handling device, including for axially squeezing into main nail in the marrow of sclerotin, in described marrow, main nail has the amplitude matched with human tibia anatomical structure, and two ends have for the lock hole with common fixing screw fit；In described marrow, main nail two ends have fixing threaded hole；Also include a fixed support and some fixing screws；Described fixing screw rear end is connected with fixed support, and the main fixing threaded hole nailed on is connected with in marrow in front end；Also include some can along marrow the carrying pin of main nail axially-movable, described carrying pin one end is radially implanted to be needed the bone piece of sliding and not to arrive main nail in marrow, and the other end is connected on fixed support.
Improving as one, described fixed mount is syllogic, including two save canned paragraph to be connected with fixing screw and middle for carry the carrying section that pin is connected；It is connected by universal joint between described canned paragraph with carrying section.Owing to the outside anatomical structure of bone is slightly different, the support of existing straight rod-shaped is mated bad.Fixed support is set to syllogic, is connected by universal joint between section with section, so can pass through universal joint and adjust the radian of fixed mount to adapt to.
Improve as one, described canned paragraph has the hole passed through for fixing screw；Described hole is run through in fixing screw rear end, and is fastened by bolt.First by fixing screw through the hole on canned paragraph, then inserting needle screws in the main fixing threaded hole nailed in marrow, and last screwing bolts fastens.Its good stability, convenient adjustment.Certainly also there is other connection fastening means, such as directly on canned paragraph, offer screw, when use, first fixing screw is screwed in the screw on canned paragraph, then the main fixing threaded hole nailed in screw-in marrow.Fixing screw two ends are all threaded, have both served the effect of main nail in fixing marrow, and itself locks with fixed support again, and it has arrived the effect of locking.
Improving as one, described carrying section is nested by some joint sleeves and forms；Adjacent sleeve is provided with the elongated hole that position is corresponding, and utilizes the bolt running through elongated hole to fix.Human body long bone length is different, and between Different Individual, the length of identical skeleton also differs, and the carrying section on fixed support is set to adjustable in length, it is adaptable to the long bone of different length so that whole device wide adaptability.
Further improve as one, described sleeve is provided with scale.Indicate length sleeve, be conducive to accurate adjustment.
Improving as one, also include a needle stand that can slide up and down along fixed support, described carrying pin is fixed on needle stand.The bone piece needing carrying is implanted in carrying pin front end, and its rear end is fixed on needle stand.When bone piece carried by needs, regulate needle stand position on fixed support.
Improve further as one, described fixed support has the scale indicating needle stand displacement.It is easy to accurately regulate the position of needle stand, the distance of bone piece carrying can be recorded again.
Improving as one, described fixed support is axially arranged tooth bar, is provided with the gear coordinated with tooth bar in described needle stand；Needle stand is outside equipped with the adjusting bolt that driven gear rotates.Axially squeeze into main nail in marrow to be fixed due to long bone, the power needed for bone piece will have been carried relatively greatly, not easily move.Utilize rack-and-pinion to coordinate, only need to rotate adjusting bolt, needle stand just can be made along fixed support axially-movable, drive carrying pin carrying bone piece simultaneously.
Preferred as one, in described marrow, main nail two ends have for the lock hole with common fixing screw fit.Lock hole is often held and is preferably provided two, and is arranged on outside fixing threaded hole.After bone has been carried, it is possible to unload fixed support, by main nail in the fixing marrow of common fixing screw, reduce patient's burden.
Preferred as one, in described marrow, main nail two ends are each provided with two fixing screws；Described carrying pin is two.Two ends respectively arrange two fixing screws so that whole system is more firm.In like manner, two carrying pins also can guarantee that stability when bone is carried.And if use many pieces of draw points fix same bone plane can cause local sclerotin cutting, reduce local sclerotin intensity, have iatrogenic risk of bone fracture, and metaphysis neural blood vessel be more, easily damage during operation.
Of the present utility model have the beneficial effect that 1. devices omnidistance can maintain the key line of force and length, it is to avoid bone handling process occurs the line of force is bad, shortened deformity and lateral displacement；2. this device is fixing reliable, is feasible exercise of joint function and lower ground loaded exercise, reduces disuse osteoporosis, the postoperative refracture incidence rate of ankylosis agent after operation in patients；3. the draw point quantity that this device is implanted is few, decreases pin site infection, iatrogenic fracture and Soft tissue cutting incidence rate；4. this device operating technology is relatively easy, and learning curve is short, is suitable for situation of all-level hospitals popularity and carries out；5. this device is light, and clinical care is convenient, and does not affect patient's daily life, and patient compliance is good, reduces the mental symptom such as patient anxiety, depression；6. carrying pin is unrestricted, it is possible to is made comparison sturdy, increases its intensity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is main pin structure schematic diagram in marrow.
Labelling in figure: main nail, 11 fixing threaded holes, 13 lock holes, 2 fixing screws, 3 carrying pins, 4 fixed supports, 41 canned paragraphs, 42 carrying section, 43 bolts, 44 elongated holes, 45 adjusting bolts, 46 needle stands, 47 universal joints in 1 marrow.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
As shown in Figure 1 and Figure 2, this utility model includes main nail 1 in the marrow for axially squeezing into sclerotin, and in described marrow, main nail 1 has the amplitude matched with human tibia anatomical structure, and two ends have for the lock hole 13 with common fixing screw fit；In described marrow, main nail 1 two ends have fixing threaded hole 11；Also include a fixed support 4 and some fixing screws 2；Described fixing screw 2 rear end is connected with fixed support 4, and front end is connected with the fixing threaded hole 11 on main nail 1 in marrow；Also include some can along marrow the carrying pin 3 of main nail 1 axially-movable, described carrying pin 3 one end is radially implanted to be needed the bone piece of sliding and not to arrive main nail 1 in marrow, and the other end is connected on fixed support 4.In marrow, main nail 1 two ends are each provided with two fixing screws 2；Described carrying pin 3 is two.
Fixed support 4 is syllogic, saves canned paragraph 41 to be connected and the middle carrying section 42 for being connected with carrying pin 3 with fixing screw 2 including two；Connect 47 by universal joint between described canned paragraph 41 and carrying section 42 to connect.Canned paragraph 42 has the hole passed through for fixing screw 2；Described hole is run through in fixing screw rear end, and is fastened by bolt.Carrying section 42 is nested by some joint sleeves and forms；Adjacent sleeve is provided with elongated hole corresponding to position 44, and utilizes the bolt 43 running through elongated hole 44 to fix.Sleeve is provided with scale.Indicate length sleeve, be conducive to accurate adjustment.
Including a needle stand 46 that can slide up and down along fixed support 4, described carrying pin 3 is fixed on needle stand 46.Described fixed support 4 is axially arranged tooth bar, is provided with, in described needle stand 46, the gear coordinated with tooth bar；Needle stand 46 is outside equipped with the adjusting bolt 45 that driven gear rotates.Described fixed support 4 has the scale indicating needle stand 46 displacement.It is easy to accurately regulate the position of needle stand 46, the distance of bone piece carrying can be recorded again.
In marrow, main nail 1 two ends have for the lock hole 13 with common fixing screw fit.Lock 13 holes often to hold and be preferably provided two, and be arranged on outside fixing threaded hole 11.
Use step is as follows: 1. implant in advance in marrow main nail 1 and locked, and recovers key length, the line of force；
2. mounting and fixing bracket 4, first by fixing screw 2 through the hole on canned paragraph 41, then inserting needle screws in the fixing threaded hole 11 in marrow on main nail 1, and last screwing bolts fastens.
3., in metaphysis target site osteotomy, then carrying pin 3 is implanted through carrying elongated hole 12 and need in sliding bone piece；
4. by rotating the needle stand 46 drive carrying pin 3 sliding sclerite on adjusting bolt 45 sliding fixed support 4, precise flow is carried out according to fixed support high scale, until sliding onto docking site, finally take out fixed support 4, in marrow main nail 1 retains always to fracture heal completely.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (10)
1. one kind is used for eburnation patient's tibia large segmental bone defect bone Handling device, including for axially squeezing into main nail in the marrow of sclerotin, in described marrow, main nail has the amplitude matched with human tibia anatomical structure, and two ends have for the lock hole with common fixing screw fit；It is characterized in that: in described marrow, main nail two ends have fixing threaded hole；Also include a fixed support and some fixing screws；Described fixing screw rear end is connected with fixed support, and the main fixing threaded hole nailed on is connected with in marrow in front end；Also include some can along marrow the carrying pin of main nail axially-movable, described carrying pin one end is radially implanted to be needed the bone piece of sliding and not to arrive main nail in marrow, and the other end is connected on fixed support.
2. one according to claim 1 is used for eburnation patient's tibia large segmental bone defect bone Handling device, it is characterized in that: described fixed mount is syllogic, save canned paragraph to be connected with fixing screw and the middle carrying section for being connected with carrying pin including two；It is connected by universal joint between described canned paragraph with carrying section.
3. one according to claim 2 is used for eburnation patient's tibia large segmental bone defect bone Handling device, it is characterised in that: described canned paragraph has the hole passed through for fixing screw；Described hole is run through in fixing screw rear end, and is fastened by bolt.
4. one according to claim 2 is used for eburnation patient's tibia large segmental bone defect bone Handling device, it is characterised in that: described carrying section is nested by some joint sleeves and forms；Adjacent sleeve is provided with the elongated hole that position is corresponding, and utilizes the bolt running through elongated hole to fix.
5. one according to claim 4 is used for eburnation patient's tibia large segmental bone defect bone Handling device, it is characterised in that: described sleeve is provided with scale.
6. one according to claim 1 is used for eburnation patient's tibia large segmental bone defect bone Handling device, it is characterised in that: also including a needle stand that can slide up and down along fixed support, described carrying pin is fixed on needle stand.
7. one according to claim 6 is used for eburnation patient's tibia large segmental bone defect bone Handling device, it is characterised in that: described fixed support has the scale indicating needle stand displacement.
8. one according to claim 6 is used for eburnation patient's tibia large segmental bone defect bone Handling device, it is characterised in that: described fixed support is axially arranged tooth bar, is provided with the gear coordinated with tooth bar in described needle stand；Needle stand is outside equipped with the adjusting bolt that driven gear rotates.
9. one according to claim 1 is used for eburnation patient's tibia large segmental bone defect bone Handling device, it is characterised in that: in described marrow, main nail two ends have for the lock hole with common fixing screw fit.
10. one according to claim 1 is used for eburnation patient's tibia large segmental bone defect bone Handling device, it is characterised in that: in described marrow, main nail two ends are each provided with two fixing screws；Described carrying pin is two.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521035917.1U CN205379353U (en) | 2015-12-14 | 2015-12-14 | Be used for damaged bone handling device of big section bone of fine and close patient's shin bone of sclerotin |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521035917.1U CN205379353U (en) | 2015-12-14 | 2015-12-14 | Be used for damaged bone handling device of big section bone of fine and close patient's shin bone of sclerotin |
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| CN205379353U true CN205379353U (en) | 2016-07-13 |
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| CN201521035917.1U Expired - Fee Related CN205379353U (en) | 2015-12-14 | 2015-12-14 | Be used for damaged bone handling device of big section bone of fine and close patient's shin bone of sclerotin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106420020A (en) * | 2016-08-31 | 2017-02-22 | 天津正天医疗器械有限公司 | External screw fixing device used after tibial osteotomy |
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2015
- 2015-12-14 CN CN201521035917.1U patent/CN205379353U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106420020A (en) * | 2016-08-31 | 2017-02-22 | 天津正天医疗器械有限公司 | External screw fixing device used after tibial osteotomy |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 Termination date: 20161214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |