CN204839837U - Automatic locking formula interbody fusion cage that struts of memory alloy - Google Patents
Automatic locking formula interbody fusion cage that struts of memory alloy Download PDFInfo
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- CN204839837U CN204839837U CN201520090270.6U CN201520090270U CN204839837U CN 204839837 U CN204839837 U CN 204839837U CN 201520090270 U CN201520090270 U CN 201520090270U CN 204839837 U CN204839837 U CN 204839837U
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Abstract
The utility model discloses an automatic locking formula interbody fusion cage that struts of memory alloy is strutted the hole, is locked the tooth, is controlled the hole and plant bone hole and constitute by main part, automation. Voluntarily, both sides and the symmetry of hole for the main part strut, locking gear position is just symmetrical in the upper and lower both sides that strut the hole automatically, and the prong outwards, control the back of hole site in the main part, planting bone hole and lieing in the central authorities of main part, shape and main part unanimity and the inner edge that uses the main part are the boundary. Automatically, it adopts medical memory alloy to make to strut locking formula interbody fusion cage. During the use, under the low temperature, to locking tooth pressurization, with the bone grafting material fill up plant bone hole after, control aperture operation approach with the electrode holder centre gripping and get into, strut locking formula interbody fusion cage with automation and put into target intervertebral crack, behind the rewarming, strut the hole and reply shape to the pressurization before, in the upper and lower position centrum soleplate in prong wedging target intervertebral crack of locking tooth, that accomplishes lumbar vertebrae intervertebral crack struts, pressurizes, locks fixed, reaches the purpose that struts the section centrum of adjacent festival with fixed intervertebral crack, performs the operation simply.
Description
Technical field: this utility model relates to the technical field of medical apparatus and instruments, particularly relates to the device for stabilizing spine vertebral member and using method.
Background technology:
Spinal column degenerative disease and structural damage thereof cause the impaired major reason even lost of human necks, shoulders lumbago and skelalgia, sensation and motor function.The fifties in last century, first Cloward proposes posterior lumbar fusion process (PLIF), and this technical development becomes one of basic art formula of current spinal surgery.Within 1986, Badgy and Kuslich designs the Invasive lumbar fusion device (Cage) being applicable to human body, i.e. BAK (BagbyandKuslich) system.After this, Intervertebral fusion technology has had large development, becomes a kind of basic operative mode for the treatment of spinal column degenerative disease and structural damage.The design principle of Invasive lumbar fusion device (Cage) is that (distraction-compressionstabilization) effect is stablized in strut---compression---proposed according to Bagby.Its principle is centered by disease damage intervertebral space, after implantation Invasive lumbar fusion device, under distracting force can make the muscle of Fusion levels, fibrous ring and forward and backward longitudinal ligament be in continued tension state, makes Fusion levels and fusion device reach three-dimensional super statics and fixes.Secondly, Invasive lumbar fusion device (Cage) has good anatomical supports function.On the one hand, by recovering the height of intervertebral space, with before recovering spinal column, the stress of center pillar and stable, recover, maintain, the intrinsic physiology of stabilizing spine is protruding, expand intervertebral foramina, alleviate the pressurized of dural sac, nerve root.The recovery of disc height can indirectly multiple cause folding ligamenta flava due to the loss of disc height and by the fibrous ring compressed, thus the narrow of central canalis spinalis is improved significantly, increases canalis spinalis anteroposterior diameter, alleviate original intraspinal tube occupy-place.On the other hand Cage be aided with pedicle screw-rod or steel plate screw fixing can also for spinal column provide at once with early stage fusion stability.Can by strutting active force that a compression produces and counteracting force obtains anti-shearing, rotation effect.The fusion that the hollow structure of Cage is the spongy bone in it provides good mechanical environment, thus reaches the object of interface permanent fusion.Since intervertebral fusion technology is applied clinically, the Invasive lumbar fusion device used clinically can be divided into according to its material: 1. metal species fusion device.Be mostly titanium alloy fusion device, as TFC, Harms, BAK Invasive lumbar fusion device etc.2. non-metal kind fusion device, as Brantigan Carbon fiber interbody, polyphosphazene polymer ether ether ketone (PEEK), an absorbable poly-DI.One lactic acid (PDLLA) fusion device etc.Metal species Invasive lumbar fusion device is at present for making the metal material mainly titanium alloy of Invasive lumbar fusion device.With BAK, RayTFC for representative.Its indication is extended to lumbar isthmus and bursts apart slippage, lumbar instability etc.The Invasive lumbar fusion device that nonmetal fusion device is conventional clinically is at present biological non-absorbing type Invasive lumbar fusion device.Make primarily of carbon fiber (carbonfiber) and polyether-ether-ketone (polyetheretherketone, PEEK) material.At present; metal species no matter based on titanium alloy or based on the non-metal kind Invasive lumbar fusion device of polyether-ether-ketone (PEEK) material; for improving stability and fusion rate; usually auxiliary pedicle screw-rod or steel plate screw internal fixtion is needed; thus reach treatment spinal column disease damage; eliminate pain, prevents deformity, reconstruction of stability and the spinoneural object of protection.But pedicle screw-rod or steel plate screw internal fixtion also result in stress shielding while providing enough support forces, easily cause the adverse consequencess such as bone dissolving, osteoporosis.And, owing to adding the fixing of pedicle screw-rod or steel plate screw, not only considerably increase the wound of operation process, add the probability of postoperative infection, nerve injury; Also considerably increase operating difficulty, extend operating time and intraoperative blood loss, and bring heavier financial burden to patient.In addition, owing to limiting the activity of vertebral body, also easily accelerate the regression of neighbouring section, significantly reduce patient, particularly the quality of life of young patient.
For the deficiency of existing Invasive lumbar fusion device (Cage) methods of internal fixation, the purpose of this utility model is to be further improved existing fixed form, there is provided that a kind of risk is less, the device for spinal fixation vertebral member of more convenient operation, and its using method is provided.
Summary of the invention
The purpose of this utility model is to be provided for automatically strutting locking-type Invasive lumbar fusion device and using method thereof to the memorial alloy that the upper and lower vertebrae of target intervertebral space is fixed in interbody fusion.
Memorial alloy for intervertebral fusion struts self-locking Invasive lumbar fusion device automatically:
A, the described locking-type Invasive lumbar fusion device 1 that automatically struts adopt Medical memory alloy manufacture; By Medical memory alloy sheet material reshaping after cutting, integrated overall structure.
B, the described locking-type Invasive lumbar fusion device 1 of automatically strutting, containing rectangle and/or Fructus anacardii shape and/or fusiformis main body 11, automatically strut hole 12, locking teeth 13, hold hole 14 and bone grafting hole 15.
C, described locking-type Invasive lumbar fusion device 1 rectangular body 11 front that automatically struts are seen as rectangle, and side is seen as trapezoidal, and anterior aspect is rectangle, after to see also be rectangle; Fructus anacardii shape is seen in Fructus anacardii shape main body 11 front, and side is seen as trapezoidal, and anterior aspect is rectangle, after to see also be rectangle; The positive side of fusiformis main body 11 is seen as fusiformis, and anterior aspect is rectangle, after to see also be rectangle; Rectangle and/or Fructus anacardii shape main body and/or fusiformis 11 are hollow structure.
D, the described locking-type Invasive lumbar fusion device 1 of automatically strutting, containing automatically strutting hole 12 for circular, are positioned at the both sides of rectangle and/or Fructus anacardii shape and/or fusiformis main body 11 and symmetrical.
E, the described locking-type Invasive lumbar fusion device 1 that automatically struts are containing locking teeth 13, and be positioned at the both sides up and down and symmetry that automatically strut hole, crown 13-1 outwardly.
F, the described locking-type Invasive lumbar fusion device 1 that automatically struts, containing holding hole 14, are positioned at the back of rectangle and/or Fructus anacardii shape and/or fusiformis main body, can be two and also can be one.
G, the described locking-type Invasive lumbar fusion device 1 that automatically struts are containing bone grafting hole 15, be positioned at the central authorities of rectangle and/or Fructus anacardii shape and/or fusiformis main body 11, shape and rectangle and/or Fructus anacardii shape and/or fusiformis main body 11 Yi Zhi And are automatically to strut the inner edge of locking-type Invasive lumbar fusion device 1 main body 11 for boundary.
H, described automatically strut that locking-type Invasive lumbar fusion device 1 is placed in the upper vertebral body of target intervertebral space 34 between soleplate lower edge 41 and the soleplate upper limb 51 of the next vertebral body 5, for fixed target intervertebral space 3 adjacent segment vertebral body 4 and 5, there is good anatomical supports function.The height of intervertebral space can be increased, with before recovering spinal column, the stress of center pillar and stable, recover, maintain, the intrinsic physiology of stabilizing spine is protruding, expand intervertebral foramina, alleviate the pressurized of nerve root.The recovery of disc height can indirectly multiple cause folding ligamenta flava due to the loss of disc height and by the fibrous ring compressed; thus the narrow of central canalis spinalis is improved significantly; increase canalis spinalis anteroposterior diameter; alleviate original intraspinal tube occupy-place; without the need to being aided with pedicle screw-rod or steel plate screw internal fixtion, thus reach treatment spinal column disease damage, eliminate pain; prevent deformity, reconstruction of stability and the spinoneural object of protection.Reduce the probability of postoperative infection, nerve injury; Also greatly reduce operating difficulty, shorten operating time and intraoperative blood loss, and alleviate financial burden to patient.
Further, the described locking-type Invasive lumbar fusion device 1 that automatically struts has the radian matched with the soleplate lower edge 41 of the upper vertebral body of described target intervertebral space 34 and soleplate upper limb 51 surface of the next vertebral body 5.Because the described locking-type Invasive lumbar fusion device 1 that automatically struts has the radian matched with the soleplate lower edge 41 of the upper vertebral body of described target intervertebral space 34 and soleplate upper limb 51 surface of the next vertebral body 5, therefore, when described automatically strut locking-type Invasive lumbar fusion device 1 insert between the soleplate lower edge 41 of the upper vertebral body of target intervertebral space 4 and the soleplate upper limb 51 of the next vertebral body 5 time, can mate well with soleplate upper limb 51 surface of the soleplate lower edge 41 of the upper vertebral body of target intervertebral space 34 and the next vertebral body 5, can easily by automatically strut that locking-type Invasive lumbar fusion device 1 inserts the upper vertebral body of target intervertebral space 4 between soleplate lower edge 41 and the soleplate upper limb 51 of the next vertebral body 5, handled easily, efficiently avoid the unexpected injury because surface spikes causes tissue.
Described automatically strut locking-type Invasive lumbar fusion device 1 rectangle and/or Fructus anacardii shape and/or fusiformis main body 11 in order to the operative approach and lesion resection of cervical vertebra and/or lumbar vertebra after reserved passageway size and form design.Described rectangle and/or Fructus anacardii shape and/or fusiformis main body 11 are also provided with and automatically strut hole 12, first be forced into by the crown 13-1 of the locking teeth 13 automatically strutting lower edge on hole 12 parallel consistent with main body 11 lower edges during use, making automatically to strut hole 12 can conveniently insert.
In use surprisingly come off from target intervertebral space 3 to prevent the described locking-type Invasive lumbar fusion device 1 that automatically struts, described main body 11 is also provided with locking teeth 13, automatically strut hole 12 by restoring force after rewarming automatically to open, be positioned at the locking teeth 13 automatically strutting lower edge on hole 12 and embed the soleplate lower edge 41 of upper vertebral body 4 and the soleplate upper limb 51 of the next vertebral body 5, the described locking-type Invasive lumbar fusion device 1 that automatically struts can be locked in target intervertebral space 3, prevent the described locking-type Invasive lumbar fusion device 1 that automatically struts from coming off from target intervertebral space 3.For ease of operation, automatically strut locking-type Invasive lumbar fusion device 1 rear and be also provided with holding hole 14, hold hole 14 with the described locking-type Invasive lumbar fusion device 1 that automatically struts of holder clamping when inserting, the reserved passageway after the operative approach and lesion resection of cervical vertebra and/or lumbar vertebra by described automatically strut that locking-type Invasive lumbar fusion device 11 inserts the upper vertebral body of target intervertebral space 34 between soleplate lower edge 41 and the soleplate upper limb 51 of the next vertebral body 5.
During use, the described locking-type Invasive lumbar fusion device 1 that automatically struts is inserted lower than in 4 degree of frozen water, automatically is inwardly pressurizeed in the hole 12 that struts strutting locking-type Invasive lumbar fusion device 1, make to strut hole 12 transverse diameter to diminish, its relative locking teeth 13 crown is depressed into consistent with main body 11 upper and lower sides sides aligned parallel, bone-grafting material is filled up bone grafting hole 15, with holder clamping described automatically strut locking-type Invasive lumbar fusion device 1 hold the reserved passageway of hole 14 after the operative approach and lesion resection of cervical vertebra and/or lumbar vertebra by described automatically strut that locking-type Invasive lumbar fusion device 1 inserts the upper vertebral body of target intervertebral space 4 between soleplate lower edge 41 and the soleplate upper limb 51 of the next vertebral body 5, heat up with 40 degree of warm water washings, the restoring force of memorial alloy is utilized after rewarming, strut hole 12 automatically to open and return back to original size and shape, make in the soleplate of the soleplate lower edge 41 of the upper vertebral body of locking teeth 13 crown wedging target intervertebral space 4 and the soleplate upper limb 51 of the next vertebral body 5, the locking completing lumbar vertebra target intervertebral space adjacent segment vertebral body 4 and vertebral body 5 is fixed, fix without the need to pedicle screw-rod or the auxiliary of steel plate screw, thus reach the object of fixed target intervertebral space 3 adjacent segment.
This utility model in interbody fusion to the upper and lower vertebrae of target intervertebral space strut fixing memorial alloy automatically strut locking-type Invasive lumbar fusion device by rectangle and/or Fructus anacardii shape and/or fusiformis main body 11, automatically strut hole 12, locking teeth 13, hold hole 14 and bone grafting hole 15 forms.It is described that automatically to strut hole 12 be circular and/or ellipse is positioned at the both sides of rectangle and/or Fructus anacardii shape and/or fusiformis main body 11 and symmetrical; Described locking teeth 13 is positioned at the both sides up and down and symmetry that automatically strut hole, and crown outwardly; Described holding hole 14 is positioned at the back of rectangle and/or Fructus anacardii shape and/or fusiformis main body 11; Bone grafting hole 15 is positioned at the central authorities of rectangle and/or Fructus anacardii shape and/or fusiformis main body 11, and shape and rectangle and/or Fructus anacardii shape and/or fusiformis main body 11 Yi Zhi And are automatically to strut the inner edge of locking-type Invasive lumbar fusion device 1 main body 11 for boundary.The described locking-type Invasive lumbar fusion device 1 that automatically struts adopts Medical memory alloy manufacture; By Medical memory alloy sheet material reshaping after cutting.
During use, at low temperatures, automatically is pressurizeed in the hole 12 that struts strutting locking-type Invasive lumbar fusion device 1, make to strut hole 12 transverse diameter to diminish, the crown 13-1 of its relative locking teeth 13 is depressed into parallel consistent with main body 11 outer ledge, bone-grafting material is filled up bone grafting hole 15, hole 14 is held with the described locking-type Invasive lumbar fusion device 1 that automatically struts of holder clamping, reserved passageway after the operative approach and lesion resection of cervical vertebra and/or lumbar vertebra by described automatically strut that locking-type Invasive lumbar fusion device 11 inserts the upper vertebral body of target intervertebral space 4 between soleplate lower edge 41 and the soleplate upper limb 51 of the next vertebral body 5, heat up with 40 degree of warm water washings, the restoring force of memorial alloy is utilized after rewarming, strut hole 12 automatically open return back to original size and pressurization before shape, make in the soleplate lower edge 41 of the upper vertebral body of locking teeth 13 crown wedging target intervertebral space 4 and soleplate upper limb 51 soleplate of the next vertebral body 5, the locking completing lumbar vertebra target intervertebral space adjacent segment is fixed, fix without the need to pedicle screw-rod or the auxiliary of steel plate screw, thus reach the object strutting---compression---fixed target intervertebral space 3 adjacent segment.
Accompanying drawing explanation
Fig. 1 be utility model automatically strut locking-type Invasive lumbar fusion device for strutting fixing memorial alloy to the upper and lower vertebrae of target intervertebral space in interbody fusion, by Medical memory alloy sheet material through cutting after reshaping, integrated overall structure.Fig. 1-1 is the state of Medical memory alloy sheet material after cutting, and Fig. 1-2 is the three-dimensional structure diagram of reshaping after cutting.
Fig. 2 be utility model in interbody fusion to the upper and lower vertebrae of target intervertebral space strut fixing memorial alloy automatically strut locking-type Invasive lumbar fusion device normality under and high temperature time reply shrink after three-dimensional structure diagram.Containing rectangular body 11, automatically strut hole 12, locking teeth 13, holding hole 14 and bone grafting hole 15
Fig. 2-1 is the front view of Fig. 1; Fig. 2-2 is top views of Fig. 1; Fig. 2-3 is left views; Fig. 2-4 rearview; Fig. 2-5 is front views.
When Fig. 3 is low temperature, this utility model struts three-dimensional structure diagram when locking-type Invasive lumbar fusion device is compressed automatically for strutting fixing memorial alloy to the upper and lower vertebrae of target intervertebral space in interbody fusion.
Fig. 3-1 is the front view of Fig. 3; Fig. 3-2 is top views of Fig. 3; Fig. 3-3 is left views; Fig. 3-4 rearview; Fig. 3-5 is front views.
Fig. 4 be this utility model for strutting to the upper and lower vertebrae of target intervertebral space the isomery three-dimensional structure diagram of the same race that fixing memorial alloy struts locking-type Invasive lumbar fusion device automatically in interbody fusion.Fig. 4-1 contains Fructus anacardii shape main body 11, automatically struts hole 12, locking teeth 13, holds hole 14 and bone grafting hole 15; Fig. 4-2 is fusiformis main body 11, automatically struts hole 12, locking teeth 13, holds hole 14 and bone grafting hole 15.
Fig. 5 is schematic diagram when inserting between the soleplate lower edge 41 of the upper vertebral body of target intervertebral space 4 and the soleplate upper limb 51 of the next vertebral body 5 under the memorial alloy of this utility model under low temperature struts locking-type Invasive lumbar fusion device confined state automatically.
Fig. 6 is that automatically strutting under locking-type Invasive lumbar fusion device is responded state of this utility model is inserted after between the soleplate lower edge 41 of the upper vertebral body of target intervertebral space 4 and the soleplate upper limb 51 of the next vertebral body 5, strut under high temperature hole automatically open return back to original size and pressurization before shape, in the soleplate lower edge 41 of the upper vertebral body of crown wedging target intervertebral space 4 of locking teeth and soleplate upper limb 51 soleplate of the next vertebral body 5, the locking completing target intervertebral space adjacent segment fix after schematic diagram.
Fig. 7 is through anterior approach (Fig. 7-1), after cut-out intervertebral disc (Fig. 7-1) at low temperatures by this utility model automatically strut locking-type Invasive lumbar fusion device compressive state under insert between the soleplate lower edge 41 of the upper vertebral body of target intervertebral space 4 and the soleplate upper limb 51 of the next vertebral body 5 (Fig. 7-3), then at high temperature automatically strut locking-type Invasive lumbar fusion device strut hole automatically open return back to original size and pressurization before shape, the soleplate lower edge 41 of the upper vertebral body of crown wedging target intervertebral space 4 of locking teeth and soleplate upper limb 51 soleplate of the next vertebral body 5 interior (Fig. 7-4), complete the operating diagram that the locking of cervical vertebra target intervertebral space adjacent segment is fixing.
Fig. 8 is through the waist way of escape (Fig. 8-1), after cut-out intervertebral disc (Fig. 8-1), at low temperatures by this utility model automatically strut locking-type Invasive lumbar fusion device compressive state under insert between the soleplate lower edge 41 of the upper vertebral body of target intervertebral space 4 and the soleplate upper limb 51 of the next vertebral body 5 (Fig. 8-3), then at high temperature automatically strut locking-type Invasive lumbar fusion device strut hole automatically open return back to original size and pressurization before shape, the soleplate lower edge 41 of the upper vertebral body of crown wedging target intervertebral space 4 of locking teeth and soleplate upper limb 51 soleplate of the next vertebral body 5 interior (Fig. 8-4), complete the operating diagram that the locking of lumbar vertebra target intervertebral space adjacent segment is fixing.
In above-mentioned figure:
1 for automatically to strut locking-type Invasive lumbar fusion device for strutting fixing memorial alloy to the upper and lower vertebrae of target intervertebral space in interbody fusion, and 2 is frozen water, and 3 is target intervertebral space, and 4 is upper vertebral body, and 5 is the next vertebral body.
11 is rectangular body, and 12 for automatically to strut hole, and 13 is locking teeth, and 14 for holding hole, and 15 is bone grafting hole, and 41 is the soleplate lower edge of upper vertebral body, and 51 is the soleplate upper limb of the next vertebral body.
Detailed description of the invention
Embodiment 1: for cervical spinal fusion this utility model automatically strut locking-type Invasive lumbar fusion device
With reference to figure 2-1 to Fig. 2-5, the memorial alloy for cervical intervertebral fusion automatically strut locking-type Invasive lumbar fusion device by rectangular body 11, automatically strut hole 12, locking teeth 13, hold hole 14 and bone grafting hole 15 and form.It is described that automatically to strut hole 12 be circular and/or ellipse is positioned at the both sides of rectangle and/or Fructus anacardii shape main body 11 and symmetrical; Described locking teeth 13 is positioned at the both sides up and down and symmetry that automatically strut hole, and crown 13-1 outwardly; Described holding hole 14 is positioned at the back of rectangle and/or Fructus anacardii shape main body 11; Bone grafting hole 15 is positioned at the central authorities of rectangle and/or Fructus anacardii shape main body 11, and shape and rectangle and/or Fructus anacardii shape main body 11 Yi Zhi And are automatically to strut the inner edge of locking-type Invasive lumbar fusion device 1 for boundary.
Further, the described locking-type Invasive lumbar fusion device 1 that automatically struts has the radian matched with the soleplate lower edge 41 of the upper vertebral body of described target intervertebral space 34 and soleplate upper limb 51 surface of the next vertebral body 5.Because the described locking-type Invasive lumbar fusion device 1 that automatically struts has the radian matched with the soleplate lower edge 41 of the upper vertebral body of described target intervertebral space 34 and soleplate upper limb 51 surface of the next vertebral body 5, therefore, when described automatically strut locking-type Invasive lumbar fusion device 1 insert between the soleplate lower edge 41 of the upper vertebral body of target intervertebral space 4 and the soleplate upper limb 51 of the next vertebral body 5 time, can mate well with soleplate upper limb 51 surface of the soleplate lower edge 41 of the upper vertebral body of target intervertebral space 34 and the next vertebral body 5, can easily by automatically strut that locking-type Invasive lumbar fusion device 1 inserts the upper vertebral body of target intervertebral space 4 between soleplate lower edge 41 and the soleplate upper limb 51 of the next vertebral body 5, handled easily, efficiently avoid the unexpected injury because surface spikes causes tissue.
Described automatically strut locking-type Invasive lumbar fusion device 1 rectangle and/or Fructus anacardii shape main body 11 in order to the operative approach and lesion resection of cervical vertebra and/or lumbar vertebra after reserved passageway size and form design.Described rectangle and/or Fructus anacardii shape main body 11 are also provided with and automatically strut hole 12, first the crown 13-1 of the locking teeth 13 automatically strutting lower edge on hole 12 is forced into parallel consistent with main body 11 lower edges during use, makes automatically to strut hole 12 transverse diameter and insert to facilitate.
In use surprisingly come off from target intervertebral space 3 to prevent the described locking-type Invasive lumbar fusion device 1 that automatically struts, described main body 11 is also provided with locking teeth 13, automatically strut hole 12 by restoring force automatically to open, be positioned at the dynamic locking teeth 13 strutting lower edge on hole 12 and embed the soleplate lower edge 41 of upper vertebral body 4 and the soleplate upper limb 51 of the next vertebral body 5, the described locking-type Invasive lumbar fusion device 1 that automatically struts can be locked in target intervertebral space 3, prevent the described locking-type Invasive lumbar fusion device 1 that automatically struts from coming off from target intervertebral space 3.For ease of operation, automatically strut locking-type Invasive lumbar fusion device 1 rear and be also provided with holding hole 14, hold hole 14 with the described locking-type Invasive lumbar fusion device 1 that automatically struts of holder clamping when inserting, the reserved passageway after the operative approach and lesion resection of cervical vertebra and/or lumbar vertebra by described automatically strut that locking-type Invasive lumbar fusion device 11 inserts the upper vertebral body of target intervertebral space 34 between soleplate lower edge 41 and the soleplate upper limb 51 of the next vertebral body 5.
During use (with reference to figure 3-1 to 3-5), at low temperatures, automatically is pressurizeed in the hole 12 that struts strutting locking-type Invasive lumbar fusion device 1, make to strut hole 12 transverse diameter to diminish, the crown 13-1 of its relative locking teeth 13 is depressed into parallel consistent with main body 11 outer ledge, bone-grafting material is filled up bone grafting hole 15.In operation, through anterior approach (Fig. 7-1), after cut-out intervertebral disc (Fig. 7-2), hold the reserved passageway of hole 14 after the operative approach and lesion resection of cervical vertebra and/or lumbar vertebra with the described locking-type Invasive lumbar fusion device 1 that automatically struts of holder clamping the above-mentioned locking-type Invasive lumbar fusion device 11 that automatically struts is inserted between the soleplate lower edge 41 of the upper vertebral body of target intervertebral space 4 and the soleplate upper limb 51 of the next vertebral body 5 (Fig. 7-3); Determine that errorless rear use 40 degree of warm water washings heat up, the restoring force of memorial alloy is utilized after rewarming, strut hole 12 automatically open return back to original size and pressurization before shape, make in the soleplate lower edge 41 of the upper vertebral body of locking teeth 13 crown 13-1 wedging target intervertebral space 4 and soleplate upper limb 51 soleplate of the next vertebral body 5, the locking completing lumbar vertebra target intervertebral space adjacent segment is fixed, fix without the need to pedicle screw-rod or the auxiliary of steel plate screw, thus reach the object of fixed target intervertebral space 3 adjacent segment.
Embodiment 2: the memorial alloy for this utility model of lumbar intervertebral fusion struts locking-type Invasive lumbar fusion device automatically
With reference to figure 4, the present embodiment is from the different of embodiment 1, and in the present embodiment, this utility model struts locking-type Invasive lumbar fusion device 4 automatically for Fructus anacardii shape, fixed object lumbar vertebra.Memorial alloy for lumbar intervertebral fusion automatically strut locking-type Invasive lumbar fusion device by Fructus anacardii shape main body 41, automatically strut hole 42, locking teeth 43, hold hole 44 and bone grafting hole 45 and form.The described hole 42 that automatically struts is the oval both sides that are positioned at Fructus anacardii shape main body 41 and symmetrical; Described locking teeth 43 is positioned at the both sides up and down and symmetry that automatically strut hole, and crown outwardly; Described holding hole 44 is positioned at the back of rectangle and/or Fructus anacardii shape main body 41; Bone grafting hole 45 is positioned at the central authorities of rectangle and/or Fructus anacardii shape main body 41, and shape and Fructus anacardii shape main body 41 Yi Zhi And are automatically to strut the inner edge of locking-type Invasive lumbar fusion device for boundary.
During use (with reference to figure 8-1 to 8-5), at low temperatures, automatically the hole 4-2 that struts strutting locking-type Invasive lumbar fusion device 4 is pressurizeed, make to strut hole 42 transverse diameter to diminish, the crown of its relative locking teeth 43 is depressed into parallel consistent with main body 41 outer ledge, bone-grafting material is filled up bone grafting hole 45.Through the waist way of escape (Fig. 8-1), after cut-out intervertebral disc (Fig. 8-1), hold the reserved passageway of hole 44 after the operative approach and lesion resection of lumbar vertebra with the described locking-type Invasive lumbar fusion device 4 that automatically struts of holder clamping the above-mentioned locking-type Invasive lumbar fusion device 41 that automatically struts is inserted between the soleplate lower edge 41 of the upper vertebral body of target intervertebral space 4 and the soleplate upper limb 51 of the next vertebral body 5 (Fig. 7-3); Determine that errorless rear use 40 degree of warm water washings heat up, the restoring force of memorial alloy is utilized after rewarming, strut hole 42 automatically open return back to original size and pressurization before shape, make in the soleplate lower edge 41 of the upper vertebral body of locking teeth 13 crown 13-1 wedging target intervertebral space 4 and soleplate upper limb 51 soleplate of the next vertebral body 5, the locking completing lumbar vertebra target intervertebral space adjacent segment is fixed, fix without the need to pedicle screw-rod or the auxiliary of steel plate screw, thus reach the object of fixed target intervertebral space 3 adjacent segment.
At low temperatures by this utility model automatically strut locking-type Invasive lumbar fusion device compressive state under insert between the soleplate lower edge 41 of the upper vertebral body of target intervertebral space 4 and the soleplate upper limb 51 of the next vertebral body 5 (Fig. 8-3), then at high temperature automatically strut locking-type Invasive lumbar fusion device strut hole automatically open return back to original size and pressurization before shape, the soleplate lower edge 41 of the upper vertebral body of crown wedging target intervertebral space 4 of locking teeth and soleplate upper limb 51 soleplate of the next vertebral body 5 interior (Fig. 8-4), complete the operating diagram that the locking of lumbar vertebra target intervertebral space adjacent segment is fixing.
It should be noted that the open structure with illustrating can replace by the structure that other effect is identical, has the isoform of effect same as described in Figure 4 herein.The embodiment that this utility model is introduced simultaneously not realizes exclusive architecture of the present utility model.Although preferred embodiments of the present utility model is introduced in this article and is illustrated; but those skilled in the art know and know that these embodiments are only illustrate; those skilled in the art can make countless changes, improvement and replacement; and this utility model can not be departed from; therefore, protection domain of the present utility model should be limited according to the spirit and scope of this utility model appending claims.
Claims (7)
1. the memorial alloy for intervertebral fusion struts locking-type Invasive lumbar fusion device automatically, it is characterized in that:
The described locking-type Invasive lumbar fusion device (1) that automatically struts adopts Medical memory alloy manufacture, by Medical memory alloy sheet material reshaping after cutting, and integrated overall structure.
2. memorial alloy according to claim 1 struts locking-type Invasive lumbar fusion device automatically, the described locking-type Invasive lumbar fusion device (1) that automatically struts adopts Medical memory alloy manufacture, containing rectangular body (11) and/or Fructus anacardii shape main body (11-1) and/or fusiformis main body (11-2), automatically struts hole (12), locking teeth (13), holding hole (14) and bone grafting hole (15).
3. memorial alloy according to claim 1 struts locking-type Invasive lumbar fusion device automatically, the described locking-type Invasive lumbar fusion device (1) that automatically struts adopts Medical memory alloy manufacture, rectangular body (11) front is seen as rectangle, side is seen as trapezoidal, anterior aspect is rectangle, after see also for rectangle; Fructus anacardii shape is seen in Fructus anacardii shape main body (11-1) front, and side is seen as trapezoidal, and anterior aspect is rectangle, after to see also be rectangle; The positive side of fusiformis main body (11-2) is seen as fusiformis, and anterior aspect is rectangle, after to see also be rectangle; Rectangular body (11) and/or Fructus anacardii shape main body (11-1) and/or fusiformis main body (11-2) are hollow structure.
4. memorial alloy according to claim 1 struts locking-type Invasive lumbar fusion device automatically, the described locking-type Invasive lumbar fusion device (1) that automatically struts adopts Medical memory alloy manufacture, containing automatically strutting hole (12) for circular or oval, be positioned at the both sides of rectangular body (11) and/or Fructus anacardii shape main body (11-1) and/or fusiformis main body (11-2) and symmetrical.
5. memorial alloy according to claim 1 struts locking-type Invasive lumbar fusion device automatically, the described locking-type Invasive lumbar fusion device (1) that automatically struts adopts Medical memory alloy manufacture, containing locking teeth (13), be positioned at the both sides up and down and symmetry that automatically strut hole, crown (13-1) outwardly.
6. memorial alloy according to claim 1 struts locking-type Invasive lumbar fusion device automatically, the described locking-type Invasive lumbar fusion device (1) that automatically struts adopts Medical memory alloy manufacture, containing holding hole (14), be positioned at the back of rectangular body (11) and/or Fructus anacardii shape main body (11-1) and/or fusiformis main body (11-2).
7. memorial alloy according to claim 1 struts locking-type Invasive lumbar fusion device automatically, the described locking-type Invasive lumbar fusion device (1) that automatically struts adopts Medical memory alloy manufacture, containing bone grafting hole (15), be positioned at the central authorities of rectangular body (11) and/or Fructus anacardii shape main body (11-1) and/or fusiformis main body (11-2), (11-2) mono-Zhi And is automatically to strut the inner edge of locking-type Invasive lumbar fusion device (1) for boundary for shape and rectangular body (11) and/or Fructus anacardii shape main body (11-1) and/or fusiformis main body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520090270.6U CN204839837U (en) | 2015-02-06 | 2015-02-06 | Automatic locking formula interbody fusion cage that struts of memory alloy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520090270.6U CN204839837U (en) | 2015-02-06 | 2015-02-06 | Automatic locking formula interbody fusion cage that struts of memory alloy |
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| CN204839837U true CN204839837U (en) | 2015-12-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016124045A1 (en) * | 2015-02-06 | 2016-08-11 | 潘滔 | Memory alloy auto-distraction locking type interbody fusion cage and application method therefor |
| CN108042246A (en) * | 2017-12-22 | 2018-05-18 | 苏州欣荣博尔特医疗器械有限公司 | Fusion device can be strutted |
| CN112674915A (en) * | 2020-12-17 | 2021-04-20 | 湖南华翔增量制造股份有限公司 | Expandable interbody fusion cage |
-
2015
- 2015-02-06 CN CN201520090270.6U patent/CN204839837U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016124045A1 (en) * | 2015-02-06 | 2016-08-11 | 潘滔 | Memory alloy auto-distraction locking type interbody fusion cage and application method therefor |
| CN108042246A (en) * | 2017-12-22 | 2018-05-18 | 苏州欣荣博尔特医疗器械有限公司 | Fusion device can be strutted |
| CN112674915A (en) * | 2020-12-17 | 2021-04-20 | 湖南华翔增量制造股份有限公司 | Expandable interbody fusion cage |
| CN112674915B (en) * | 2020-12-17 | 2022-09-23 | 湖南华翔医疗科技有限公司 | Expandable interbody fusion cage |
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