A kind of reinforcement type compression fracture pulling off reset deviceTechnical field
The present invention relates to medical instruments field, more particularly to a kind of reinforcement type compression fracture pulling off reset device.
Background technology
Vertebral body balloon expansion plasty is a Minimally invasive procedure operation, is drilled on the limbs of compression, by a spyThe sacculus feeding centrum center of the about 15mm sizes of system, then to inflated, the sacculus of expansion gradually props up the centrum for collapsing,Until centrum profile returns to normal vertebral body, remove sacculus, then by cavity from the hole to centrum center inject bone cement orArtificial bone.The strength and stability of centrum can be strengthened after bone cement solidification, will not be compressed this guarantees the centrum for restoring, andThe deformity of backbone is also just repaired.It is that one kind is used to fill and be implanted into gap that vertebral body balloon expands into the bone cement used in artOr bone cavity and the biomaterial with self-solidifying characteristic, main component is polymethyl methacrylate, and cement reaction can ensureThe instant stabilization of postoperative prosthese.
In the prior art, vertebral body balloon expansion plasty props up the centrum for collapsing using balloon expandable, however, balloon expandableControllability it is poor, reset direction is difficult to control to；Meanwhile, also there is the danger of rupture in sacculus.
The content of the invention
In view of the drawbacks described above of prior art, it is an object of the invention to provide a kind of simple structure, it is easy to operate, beneficial to vertebraThe reinforcement type compression fracture pulling off reset device that body resets.
The purpose of the present invention is achieved through the following technical solutions：
A kind of reinforcement type compression fracture pulling off reset device, including head protector, expansion body, compand handle connect handHandle, fixed handle；Head protector includes conduit part and head protector threaded portion, and head protector threaded portion is in the end of head protector；Compand handle bagInclude compand pipe and compand handle threads portion；Head protector is placed in expansion body, and expansion body is blocked；Expansion body and compressionExpansion pipe is in contact；Wherein, expansion body is used to strut lesion damaged vertebral body, sets up working chamber, and expansion body can be to appoint after struttingMeaning shape；The conduit part of head protector is placed in compand pipe；Head protector is interference fits, compand handle with compand handleCan be slided in head protector；The leading head side wall of head protector is provided with bone cement inlet；Connection handle includes connection handle spiral shellLine portion；Fixed handle includes fixed handle support bar and fixed handle threaded portion；Compand handle, connection handle are by compressionExpansion handle threads portion is connected with connection handle threads portion；Fixed handle is placed in connection handle and compand handle, andIt is threadedly coupled with the head protector threaded portion of head protector by fixed handle threaded portion, head protector threaded portion is used to be connected with fixed handleConnect and fix, do not dropped with ensuring that the reinforcement type compression fracture pulling off reset device is integrally engaged；Fixed handle by head protector,Expansion body and compand handle are connected；When rotary compression expands handle, the promotion forward of compand handle is givenPower.
Further, head protector, the material of expansion body are stainless steel or titanium alloy or memorial alloy or the life of absorbable embedded typeThing material.
Further, after injecting bone cement in expansion body, expansion body, head protector are stayed inside lesion centrum, expansion body, head protectorPlay a part of fixed reinforcement.
Further, sacculus is set inside expansion body, expansion body and sacculus is together implanted into lesion centrum.
Further, the operating method of the reinforcement type compression fracture pulling off reset device, operating procedure is as follows：（1）RotationTurn compand handle, compand handle is unscrewed from the connection handle threads portion of connection handle, compand handle is forwardIn motion process, expansion body slowly expands into required shape；（2）When expansion body is expanded to required size, compression of stopping the rotationExpansion handle, now needs to reversely rotate fixed handle, exits fixed handle；（3）By Cement fixation device sleeve pipe from connection handleStretch into inside expansion body port；When Cement fixation device sleeve pipe is reached at the bone cement inlet in head protector, from bone cementBone cement inlet injection bone cement or the artificial bone of tucker sleeve pipe；While injecting bone cement or artificial bone, can weekHandle is expanded to rotary compression and slowly retreated, until the inside of bone cement or the full whole expansion body of artificial bone filling；（4）By boneAfter the completion of cement or artificial bone injection, before bone cement or artificial bone do not solidify, Cement fixation device sleeve pipe, connection handle are exitedAnd compand handle, expansion body and head protector are stayed inside lesion centrum.
A kind of reinforcement type compression fracture pulling off reset device, including expansion body, compand handle connect handle, GuDetermine handle；Connection handle includes connection handle threads portion, connection handle ingress pipe and connection handle ingress pipe threaded portion, connectionHandle ingress pipe threaded portion is in the end of connection handle ingress pipe；The end for connecting handle ingress pipe is cross open or rice fontThe elastic construction of opening, expansion body is blocked；The leading head side wall for connecting handle ingress pipe is provided with bone cement inlet；ExpandZhang Tiyu compand pipes are in contact；Wherein, expansion body is used to strut lesion damaged vertebral body, sets up working chamber, and expansion body is struttedAfter can have any shape；Compand handle, connection handle are by compand handle threads portion and connection handle threads portionIt is connected；Connection handle ingress pipe is placed in compand pipe；Fixed handle is placed in connection handle and compand handle, andIt is threadedly coupled with the connection handle ingress pipe threaded portion for being connected handle by fixed handle threaded portion；Connection handle ingress pipeThreaded portion is used to be connected and fix with fixed handle, to ensure that the reinforcement type compression fracture pulling off reset device integrally matchesConjunction is not dropped；Fixed handle is connected handle, expansion body and compand handle is connected；Fixed handle will connect handleInternal holes are sealed, in order to avoid when it enters lesion centrum inside, there is centrum interior tissue and block connection handle and compandHandle end, influences it normally to use；When rotary compression expands handle, compand handle motive force forward is given.DressDuring matching somebody with somebody, when handle is connected by the pipeline of compand handle and expansion body, connect the end of handle ingress pipe toInside close up, the pipeline and expansion body of compand handle can be passed through, last three turns into an entirety；Conversely, working asWhen connection handle withdraws expansion body, connection handle active force backward need to be only given, you can depart from expansion body, smoothly extract vertebraBody, and expansion body is stayed inside lesion centrum.
Further, the material of expansion body is stainless steel or titanium alloy or memorial alloy or absorbable embedded type biology materialMaterial.
Further, after injecting bone cement in expansion body, expansion body is stayed inside lesion centrum, and expansion body plays fixed addingStrong effect.
Further, sacculus is set inside expansion body, expansion body and sacculus is together implanted into lesion centrum.
Further, the operating method of the reinforcement type compression fracture pulling off reset device, operating procedure is as follows：（1）RotationTurn compand handle, compand handle is unscrewed from the connection handle threads portion of connection handle, compand handle is forwardIn motion process, expansion body slowly expands into required shape；（2）When expansion body is expanded to required size, compression of stopping the rotationExpansion handle, now needs to reversely rotate fixed handle, exits fixed handle；（3）By Cement fixation device sleeve pipe from connection handleStretch into inside expansion body port；When Cement fixation device sleeve pipe is reached at the bone cement inlet on connection handle ingress pipeWhen, inject bone cement or artificial bone from the bone cement inlet of Cement fixation device sleeve pipe；Inject bone cement or artificial boneWhile, can rotate in a circumferential direction and connect handle and slowly retreat, until the inside of bone cement or the full whole expansion body of artificial bone filling；When connection handle is exited back to compand handle, compand handle is exited in vitro together；（4）By bone cement or peopleAfter the completion of the injection of work bone, before bone cement or artificial bone do not solidify, Cement fixation device sleeve pipe, connection handle and compression are exitedExpansion handle, expansion body is stayed inside lesion centrum.
Compared with the existing technology, the features of the present invention and progress are as follows：
1st, reinforcement type compression fracture pulling off reset device of the invention, simple structure, are easy to operation；Reduce operation windDanger；Reduce surgery cost；The reset of centrum can be preferably conducive to, reduce injection pressure；Strengthen the compressive resistance of lesion centrum.
2nd, reinforcement type compression fracture pulling off reset device of the invention, can slow down the absorption process of artificial bone, preventArtificial bone is collapsed, avoids secondary fracture.
3rd, the expansion body of reinforcement type compression fracture pulling off reset device of the invention, head protector use stainless steel or titanium alloyOr memorial alloy or absorbable embedded type biomaterial, convenient control corpus vertebrae replacement direction；And expansion body, head protector play fixationStrengthen the effect of centrum.
Brief description of the drawings
Fig. 1：Each component structural figure of reinforcement type compression fracture pulling off reset device in embodiment 1；
Fig. 2：Reinforcement type compression fracture pulling off reset device section of structure in embodiment 1；
Fig. 3：Reinforcement type compression fracture pulling off reset device structure partial enlarged drawing in embodiment 1（Expansion body is in and expandsThe state of opening）；
Fig. 4：Reinforcement type compression fracture pulling off reset device is in the structure chart of original state in embodiment 1；
Fig. 5：Reinforcement type compression fracture pulling off reset device structure chart during rotary compression expansion handle in embodiment 1；
Fig. 6：Reinforcement type compression fracture pulling off reset device structure chart when fixed handle is reversely rotated in embodiment 1；
Fig. 7：Reinforcement type compression fracture pulling off reset device structure chart when fixed handle is exited in embodiment 1；
Fig. 8：Reinforcement type compression fracture distraction reduction dress during Cement fixation device sleeve pipe insertion connection handle in embodiment 1Put structure chart；
Fig. 9：Expansion body, the head protector structure chart inside lesion centrum are stayed in embodiment 1；
Figure 10：The structure chart of handle is connected in embodiment 2；
Figure 11：The partial enlarged drawing of handle end is connected in embodiment 2；
Figure 12：The connection handle and compand handle connecting structure figure of expansion body are installed in embodiment 2；
Figure 13：Reinforcement type compression fracture pulling off reset device is in the structure chart of original state in embodiment 2；
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1：
As Figure 1-3, the reinforcement type compression fracture pulling off reset device, including head protector 1, expansion body 2, compandHandle 3, connects handle 4, fixed handle 5；Head protector 1 includes conduit part 6 and head protector threaded portion 12, and head protector threaded portion 12 is in head protector 1End；Compand handle 3 includes compand pipe 7 and compand handle threads portion 8；Head protector 1 is placed in expansion body 2,And block expansion body 2；Expansion body 2 is in contact with compand pipe 7；Wherein, expansion body 2 is used to strut lesion damaged vertebral body,Working chamber is set up, expansion body 2 can have any shape after strutting；The conduit part 6 of head protector 1 is placed in compand pipe 7；Head protector 1It is interference fits with compand handle 3, compand handle 3 can be slided in head protector 1；The leading head side wall of head protector 1It is provided with bone cement inlet 13；Connection handle 4 includes connection handle threads portion 9；Fixed handle 5 includes fixed handle support bar11 and fixed handle threaded portion 10；Compand handle 3, connection handle 4 are by compand handle threads portion 8 and connection handleThreaded portion 9 is connected；Fixed handle 5 is placed in connection handle 4 and compand handle 3, and by fixed handle threaded portion 10It is threadedly coupled with the head protector threaded portion 12 of head protector 1（The fixed handle support bar 11 of fixed handle 5 and solid not shown in Fig. 3Determine handle threads portion 10）, head protector threaded portion 12 is used to be connected with fixed handle 5 and fixed, to ensure the reinforcement type compressibilityFracture pulling off reset device is integrally engaged and does not drop；Fixed handle 5 is by head protector 1, expansion body 2 and the phase of compand handle 3Connection；When rotary compression expands handle 3, the motive force forward of compand handle 3 is given.
Further, head protector 1, the material of expansion body 2 are stainless steel or titanium alloy or memorial alloy or absorbable embedded typeBiomaterial.
Further, after injecting bone cement in expansion body 2, expansion body 2, head protector 1 are stayed inside lesion centrum, expansion body 2,Head protector 1 plays a part of fixed reinforcement.
Further, the operating method of the reinforcement type compression fracture pulling off reset device, operating procedure is as follows：（1）Such asShown in Fig. 4-5, rotary compression expansion handle 3 makes compand handle 3 unscrew from the connection handle threads portion 9 of connection handle 4,In the forward movement of compand handle 3, expansion body 2 slowly expands into required shape；（2）As shown in fig. 6-7, expansion body is worked as2 when being expanded to required size, and stop the rotation compand handle 3, now needs to reversely rotate fixed handle 5, exits fixed handle5；（3）As shown in figure 8, Cement fixation device sleeve pipe 14 is stretched into inside expansion body 2 from connection handle 4 port；Work as bone cementTucker sleeve pipe 14 is reached when at the bone cement inlet 13 in head protector 1, is injected from the bone cement of Cement fixation device sleeve pipe 14Mouthful（Female Luer）15 injection bone cement or artificial bones；While injecting bone cement or artificial bone, can rotate in a circumferential direction compressionExpansion handle 3 is simultaneously slowly retreated, until the inside of bone cement or the full whole expansion body 2 of artificial bone filling；（4）As shown in figure 9, willAfter the completion of bone cement or artificial bone injection, before bone cement or artificial bone do not solidify, Cement fixation device sleeve pipe 14, connection are exitedHandle 4 and compand handle 3, expansion body 2 and head protector 1 are stayed inside lesion centrum.
Embodiment 2：
The reinforcement type compression fracture pulling off reset device, including expansion body 16, compand handle 17 connect handle18, fixed handle 19；Wherein expansion body 16, compand handle 17, fixed handle 19 respectively with embodiment 1 in expansion body 2,Compand handle 3, the structure of fixed handle 5 are identical, as shown in figs. 10-11, connection handle 18 include connection handle threads portion 20,Connection handle ingress pipe 21 and connection handle ingress pipe threaded portion 24, connection handle ingress pipe threaded portion 24 is led in connection handleEnter the end of pipe 21；The end of connection handle ingress pipe 21 is cross open or the elastic construction of rice font opening, by expansion body16 block；The leading head side wall of connection handle ingress pipe 21 is provided with bone cement inlet 23；As illustrated by figs. 12-13, expandBody 16 is in contact with compand pipe 22；Wherein, expansion body 16 is used to strut lesion damaged vertebral body, sets up working chamber, expansion body16 strut after can have any shape；Compand handle 17, connection handle 18 pass through compand handle threads portion and connectionHandle threads portion 20 is connected；Connection handle ingress pipe 21 is placed in compand pipe 22；Fixed handle 18 is placed in connection handle18 and compand handle 17 in, and by fixed handle threaded portion and the connection handle ingress pipe threaded portion 24 for being connected handle 18It is threadedly coupled；Connection handle ingress pipe threaded portion 24 is used to be connected with fixed handle 19 and fixed, to ensure the reinforcingType compression fracture pulling off reset device is integrally engaged and does not drop；Fixed handle 19 will connect handle 18, expansion body 16 andCompand handle 17 is connected；Fixed handle 19 will connect the internal holes sealing of handle 18, in order to avoid when it enters lesion centrumWhen internal, there is centrum interior tissue etc. and block connection handle 18 and the end of compand handle 17, influence it normally to use；WhenDuring rotary compression expansion handle 17, the motive force forward of compand handle 17 is given.In assembling process, when connection handle 18 leads toWhen the pipeline and expansion body 16 of overcompression expansion handle 17, the end of connection handle ingress pipe 21 inwardly closes up, can be suitablePipeline and expansion body 16 that profit passes through compand handle 17, last three turn into an entirety；Conversely, when connection handle 18 is removedDuring from expansion body 16, connection handle 18 active force backward need to be only given, you can depart from expansion body 16, by connection handle 18 from vertebraExtracted in body, and expansion body 16 is stayed inside lesion centrum.
Further, the material of expansion body 16 is stainless steel or titanium alloy or memorial alloy or absorbable embedded type biology materialMaterial.
Further, after injecting bone cement in expansion body 16, expansion body 16 is stayed inside lesion centrum, and expansion body 16 is playedThe fixed effect strengthened.
Further, the operating method of the reinforcement type compression fracture pulling off reset device, operating procedure is as follows：（1）RotationTurn compand handle 17, compand handle 17 is unscrewed from the connection handle threads portion 20 of connection handle 18, compandIn the forward movement of handle 17, expansion body 16 slowly expands into required shape；（2）When expansion body 16 is expanded to required sizeWhen, stop the rotation compand handle 17, now needs to reversely rotate fixed handle 19, exits fixed handle 19；（3）By bone cementTucker sleeve pipe 14 is stretched into inside expansion body 16 from connection handle 18 port；When Cement fixation device sleeve pipe 14 reaches connection handWhen at the bone cement inlet 23 on handle ingress pipe 21, from the bone cement inlet of Cement fixation device sleeve pipe 14（Female Luer）15 injection bone cement or artificial bones；While injecting bone cement or artificial bone, the connection handle 18 that can rotate in a circumferential direction is simultaneously slowRetreat, until the inside of bone cement or the full whole expansion body 16 of artificial bone filling；Expand when connection handle 18 is exited back to compressionWhen opening handle 17, compand handle 17 is exited in vitro together；（4）After the completion of by bone cement or artificial bone injection, in bone waterBefore mud or artificial bone do not solidify, Cement fixation device sleeve pipe 14, connection handle 18 and compand handle 17 are exited, will expandedBody 16 is stayed inside lesion centrum.
Embodiment 3：
Further the reinforcement type compression fracture pulling off reset device of embodiment 1 or embodiment 2 is improved, in expansionInternal portion sets sacculus, expansion body and sacculus is together implanted into lesion centrum, to improve the reliability of operation.