CN203710189U - Artificial vertebral body adjustable in angle and retractable in height - Google Patents
Artificial vertebral body adjustable in angle and retractable in height Download PDFInfo
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- CN203710189U CN203710189U CN201420097078.5U CN201420097078U CN203710189U CN 203710189 U CN203710189 U CN 203710189U CN 201420097078 U CN201420097078 U CN 201420097078U CN 203710189 U CN203710189 U CN 203710189U
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- hypocentrum
- fixing head
- end fixing
- vertebral elements
- vertebral body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Neurology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The utility model provides an artificial vertebral body which is adjustable in angle and retractable in height and belongs to the technical field of artificial vertebral bodies. The artificial vertebral body comprises an upper end fixed plate, a lower end fixed plate, an upper vertebral body element, a lower vertebral body element and screws; a circular through hole is respectively formed in the upper vertebral body element and the lower vertebral body element; the lower vertebral body element is arranged in the circular through hole of the upper vertebral body element in a sleeving manner; or the upper vertebral body element is arranged in the circular through hole of the lower vertebral body element in a sleeving manner; the artificial vertebral body is characterized in that a first joint and angular adjustment mechanism is arranged between the upper end fixed plate and the upper vertebral body element; a second joint and angular adjustment mechanism is arranged between the lower end fixed plate and the lower vertebral body element; an up-and-down telescopic adjusting mechanism is arranged between the upper vertebral body element and the lower vertebral body element. According to the utility model, defects in the conventional artificial vertebral bodies can be overcome; the angles of the artificial vertebral bodies not only can be conveniently and quickly adjusted, but also the heights of the artificial vertebral bodies can be quickly and accurately adjusted, according to the requirement of reconstructing a spine; the time of operation can be effectively shortened and wounds to a patient are reduced.
Description
Technical field
This utility model belongs to artificial vertebral body technical field, is specifically related to the scalable artificial vertebral body of a kind of angle adjustment height.
Background technology
Since Hamdi reported first L2 plasmocytomas in 1969 and the capable vertebral tumor excision of adenocarcinoma metastatic, prosthese substitute, artificial vertebral body is used widely clinically as the effective vertebral body substitute of a class.Simple support type has been passed through in the development of artificial vertebral body, struts fixed pattern and the several developmental stage of adjustable fixed pattern, but the artificial vertebral body adjustment of prior art height is adjusted into master with spiral, after adjustment, cannot fix, and reliability is not strong.Adjusting angle is to complete by the intrinsic angle of upper and lower two soleplates of artificial vertebral body, and adjusting range is limited, is difficult to reach completely the object of recovering physiological camber.In addition due to artificial vertebral body itself and not effective fixing of adjacent vertebral bodies, can only, by the internal fixation nail rod reinforcement constant intensity of auxiliary Qian road internal fixation nail rod/nail-plate or the way of escape, both increase operating difficulty, increase again medical expense; With respect at once stablizing of short-term, long-term bone merges even more important.The sagittal upper and lower end face of existing artificial vertebral body is all horizontal shape, cannot mate completely with the endplate surface form of human body self vertebral body, therefore between the soleplate of human body self vertebral body and artificial vertebral body, only can reach limited point contacts, and can not realize face contact truly, this certainly will affect mechanotransduction performance and the stability at terminal plate of vertebral body-artificial vertebral body interface, and may cause local stress excessive and produce subside, finally make osteogenic merge delay or failure.In order to improve structure and the performance of artificial vertebral body, people have proposed many technical schemes, as patent announcement number: the technical scheme of 1483389 " self-retaining formula artificial vertebral body and erecting tools thereof ", though there is the angle of bend of 6～12 degree at the middle part of its middle cover 1 according to human spine's physiological bending, but do not regulate the locking mechanism after angle of bend, so bending stability can be affected; In addition, in operation, install while reconstruction, " because cortical bone densification is hard; the tapping screw thread 6 of limit cover 4 must get out annular groove while shooting hypocentrum; use the zigzag annular bit 10 that manual trepan head is sharp; cut cortex osteoplaque on upper end vertebral body and lower end vertebral body face: the jag spike 8 of end cage plate 7 is thrust to upper hypocentrum; the cylindrical boss 11 of arc spanner leading section is inserted in the draw-in groove 5 of limit cover 4; by arc spanner rotation limit cover 4, limit cover 4 is shot upper hypocentrum by tapping screw thread 6, regulates screw thread to control vertebral body length ".So it is loaded down with trivial details to control vertebral body size operation, and must use for special installation tool of the present utility model.
Summary of the invention
The purpose of this utility model is to provide a kind of angle adjustment height scalable artificial vertebral body, it can overcome the deficiency of existing artificial vertebral body, according to the needs of rebuilding spinal column, can regulate easily and fast the angle of artificial vertebral body, can regulate fast, accurately again the height of artificial vertebral body, can effectively shorten operating time, reduce patient's wound, realize artificial vertebral body and both there is immediate postoperative stability, auxiliary fixing without other, can reach again long-time stability, form with the permanent bone of upper hypocentrum and merge.
Above-mentioned goal of the invention is achieved through the following technical solutions, the scalable artificial vertebral body of a kind of angle adjustment height, comprise upper end fixing head, lower end fixing head, upper vertebral elements, hypocentrum element and screw, in upper vertebral elements and hypocentrum element, be respectively equipped with manhole, hypocentrum element housing is in the manhole of upper vertebral elements, or upper vertebral elements is enclosed within the manhole of hypocentrum element, its main points are: between upper end fixing head and upper vertebral elements, be provided with the first joint and angle-adjusting mechanism, between lower end fixing head and hypocentrum element, be provided with the second joint and angle-adjusting mechanism, between upper vertebral elements and hypocentrum element, be provided with upper and lower expansion regulating mechanism,
The first described joint and angle-adjusting mechanism are that fixing head bottom, upper end becomes upper end fixing head dome arc surface, longitudinally establish two through hole, between two through hole, form upper end fixing head reinforcement, upper end fixing head dome arc surface is shaped with the first trapezoidal engagement with rail or the first trapezoidal joint guide groove, and fixing head reinforcement bottom in upper end is shaped with the radian first angular adjustment tooth bar consistent with upper end fixing head dome arc surface; Upper vertebral elements upper surface is shaped with and the upper end fixing head dome arc surface complementary upper vertebral elements concave arc curved surface that matches, and is shaped with the first trapezoidal joint guide groove or the first trapezoidal engagement with rail that match with the upper end fixing head 1 trapezoidal engagement with rail in bottom first or the first trapezoidal joint guide groove on upper vertebral elements concave arc curved surface; Upper vertebral elements is provided with the first gear shaft, the first gear and the first angular adjustment swivel head are equipped with respectively in the first gear shaft middle part and end, the first gear is mutually meshing with the first angular adjustment tooth bar, in upper vertebral elements, in a side of the first angular adjustment swivel head, final the first eccentric bolt that the first angular adjustment swivel head dieback can be located is housed;
Described the second joint and angle-adjusting mechanism are one-tenth lower end, fixing head top, lower end fixing head dome arc surfaces, longitudinally establish two through hole, between two through hole, form lower end fixing head reinforcement, lower end fixing head dome arc surface is shaped with the second trapezoidal engagement with rail or the second trapezoidal joint guide groove, and fixing head reinforcement top, lower end is shaped with the radian second angular adjustment tooth bar consistent with lower end fixing head dome arc surface; Hypocentrum element lower surface is shaped with the hypocentrum element concave arc curved surface that matches complementary with lower end fixing head dome arc surface, is shaped with the second trapezoidal joint guide groove or the second trapezoidal engagement with rail that match with fixing head top, lower end the second trapezoidal engagement with rail or the second trapezoidal joint guide groove on hypocentrum element concave arc curved surface; Hypocentrum element is provided with the second gear shaft, the second gear and the second angular adjustment swivel head are equipped with respectively in the second gear shaft middle part and end, the second gear is mutually meshing with the second angular adjustment tooth bar, on hypocentrum element, in a side of the second angular adjustment swivel head, final the second eccentric bolt that the second angular adjustment swivel head dieback can be located is housed.
As preferably, hypocentrum element housing is in the manhole of upper vertebral elements 3; Described expansion regulating mechanism is up and down that altitude mixture control bolt is housed on hypocentrum element wall, and a head is shaped with square nut ratchet base one end of ratchet and engages with altitude mixture control bolt, and the other end is movably placed in a square opening of hypocentrum element wall; The corresponding lengthwise position of altitude mixture control bolt at the hypocentrum element dress being inserted on the wall of upper vertebral elements has altitude mixture control operation slotted eye, the ratchet wall that the ratchet that is shaped with square nut ratchet base in the corresponding lengthwise position of square opening of the hypocentrum element wall being inserted on the wall of upper vertebral elements can penetrate.
As preferably, upper end fixing head is provided with installation side wing plate upwards, has the installing hole of screw on installation side wing plate, and fixing head 1 upper surface in upper end is provided with ratchet; Lower end fixing head is provided with downward installation side wing plate, has the installing hole of screw on installation side wing plate, and fixing head lower surface, lower end is provided with ratchet.
As preferably, on upper vertebral elements wall, have two above longitudinal slotted eyes, on hypocentrum element wall, have two above longitudinally slotted eyes, longitudinally slotted eye communicates with longitudinal slotted eye; Upper vertebral elements lower end two sidewalls are provided with disymmetrical platform, and hypocentrum element lower end two sidewalls are provided with disymmetrical platform.
As preferably, upper end fixing head, lower end fixing head, upper vertebral elements, hypocentrum element and screw are made with titanium alloy material; The wall thickness of upper vertebral elements, hypocentrum element is 1～4 millimeter.
This utility model compared with prior art has following beneficial effect: because be provided with the first joint and angle-adjusting mechanism between upper end fixing head and upper vertebral elements, lower end fixing head and hypocentrum interelement are provided with the second joint and angle-adjusting mechanism, so it can be adjusted in upper and lower two angles to artificial vertebral body of artificial vertebral body, can make the degree of crook of artificial vertebral body more can meet the requirement of different patient's column reconstruction; In addition, above-mentioned mechanism has the dieback location locking structure after adjusting, so can reach long-time stability.Again because be provided with upper and lower expansion regulating mechanism in upper vertebral elements and hypocentrum interelement, so can make the height of artificial vertebral body more can meet the requirement of different patient's column reconstruction, and the ratchet having equally on the hypocentrum element after altitude mixture control can penetrate the location locking structure of the ratchet wall of vertebral elements, so can reach equally long-time stability.Further, not only convenient but also quick to the operation of said structure, so can effectively shorten operating time, reduce patient's wound.Can also realize artificial vertebral body patient's column reconstruction had both been had to immediate postoperative stability simultaneously, auxiliary fixing without other, can reach again long-time stability, form with the permanent bone of upper hypocentrum and merge.Because employing titanium alloy material is so not only intensity is high for artificial vertebral body, lightweight, and volume is little, the wall thickness of upper vertebral elements, hypocentrum element is only 1～4 millimeter.
Brief description of the drawings
Fig. 1: this utility model structural representation axonometric chart
Fig. 2: this utility model structural representation axonometric chart
Fig. 3: front view of the present utility model
Fig. 4: the cutaway view while stretching out between upper vertebral elements, hypocentrum element in Fig. 3
Fig. 5: upper and lower expansion regulating mechanism structural representation cutaway view in this utility model
In Fig. 1-5, 1-upper end fixing head, 2-lower end fixing head, the upper vertebral elements of 3-, 4-hypocentrum element, 5-screw, 6, 7-manhole, 8-first engages and angle-adjusting mechanism, 9-second engages and angle-adjusting mechanism, the upper and lower expansion regulating mechanism of 10-, 11-upper end fixing head dome arc surface, 12, 13-through hole, 14-upper end fixing head reinforcement, the trapezoidal joint guide groove of 15-first, 16-the first angular adjustment tooth bar, the upper vertebral elements concave arc of 17-curved surface, the trapezoidal engagement with rail of 18-first, 19-the first gear shaft, 20-the first gear, 21-the first angular adjustment swivel head, 22-the first eccentric bolt, 23-lower end fixing head dome arc surface, 24, 25-through hole, 26-lower end fixing head reinforcement, the trapezoidal joint guide groove of 27-second, 28-the second angular adjustment tooth bar, the trapezoidal engagement with rail of 29-second, 30-the second gear shaft, 31-the second gear, 32-the second angular adjustment swivel head, 33-the second eccentric bolt, 34-altitude mixture control bolt, 35-ratchet, 36-square nut ratchet base, 37-square opening, 38-altitude mixture control operation slotted eye, 39-ratchet wall, 40-installation side wing plate, 41-installing hole, 42-ratchet, 43-installation side wing plate, 44-installing hole, 45-ratchet, the longitudinal slotted eye of 46-, the longitudinal slotted eye of 47-, 48-platform, 49-platform, 50-hypocentrum element concave arc curved surface.
Detailed description of the invention
Just the represented embodiment in Fig. 1-5 is further described this utility model below
It comprises upper end fixing head 1, lower end fixing head 2, upper vertebral elements 3, hypocentrum element 4 and screw 5, in upper vertebral elements 3 and hypocentrum element 4, be respectively equipped with manhole 6,7, hypocentrum element 4 is enclosed within the manhole 6 of vertebral elements 3, between upper end fixing head 1 and upper vertebral elements 3, be provided with the first joint and angle-adjusting mechanism 8, between lower end fixing head 2 and hypocentrum element 4, be provided with the second joint and angle-adjusting mechanism 9; Between upper vertebral elements 3 and hypocentrum element 4, be provided with upper and lower expansion regulating mechanism 10;
Described the first joint and angle-adjusting mechanism 8 are upper end fixing head 1 one-tenth upper end, bottom fixing head dome arc surfaces 11, longitudinally establish two through hole 12 and 13, between two through hole 12,13, form upper end fixing head reinforcement 14, upper end fixing head dome arc surface 11 is shaped with the first trapezoidal joint guide groove 15, and fixing head reinforcement 14 bottoms, upper end are shaped with the radian first angular adjustment tooth bar 16 consistent with upper end fixing head dome arc surface 11; Upper vertebral elements 3 upper surfaces are shaped with and the upper end fixing head dome arc surface 11 complementary upper vertebral elements concave arc curved surface 17 that matches, and are shaped with the first trapezoidal engagement with rail 18 matching with the upper end fixing head 1 trapezoidal joint guide groove 15 in bottom first on upper vertebral elements concave arc curved surface 17; Upper vertebral elements 3 is provided with the first gear shaft 19, the first gear 20 and the first angular adjustment swivel head 21 are equipped with respectively in the first gear shaft 19 middle parts and end, hexagon in the head of the first angular adjustment swivel head 21 becomes, the first gear 20 is mutually meshing with the first angular adjustment tooth bar 16, the interior hexagon of head one-tenth of final the first eccentric bolt 22, the first eccentric bolts 22 that the first angular adjustment swivel head 21 diebacks can be located is housed in a side of the first angular adjustment swivel head 21 in upper vertebral elements 3;
Described the second joint and angle-adjusting mechanism 9 are lower end fixing head 2 one-tenth lower end, top fixing head dome arc surfaces 23, longitudinally establish two through hole 24 and 25,24,25 of two through hole form lower end fixing head reinforcement 26, lower end fixing head dome arc surface 23 is shaped with the second trapezoidal joint guide groove 27, and fixing head reinforcement 26 tops, lower end are shaped with the radian second angular adjustment tooth bar 28 consistent with lower end fixing head dome arc surface 23; Hypocentrum element 4 lower surfaces are shaped with the hypocentrum element concave arc curved surface 50 that matches complementary with lower end fixing head dome arc surface 23, are shaped with the second trapezoidal engagement with rail 29 matching with the lower end fixing head 8 trapezoidal joint guide grooves 27 in top second on hypocentrum element concave arc curved surface 50; Hypocentrum element 4 is provided with the second gear shaft 30, the second gear 31 and the second angular adjustment swivel head 32 are equipped with respectively in the second gear shaft 30 middle parts and end, hexagon in the head of the second angular adjustment swivel head 32 becomes, the second gear 31 is mutually meshing with the second angular adjustment tooth bar 28, the interior hexagon of head one-tenth of final the second eccentric bolt 33, the second eccentric bolts 33 that the second angular adjustment swivel head 32 diebacks can be located is housed in a side of the second angular adjustment swivel head 32 on hypocentrum element 4.
Above-mentioned the first joint and angle-adjusting mechanism 8, the second joint and angle-adjusting mechanism 9 can be adjusted to best angle by the folder degree α of upper end fixing head 1 upper surface and lower end fixing head 2 lower surfaces, and folder degree α range of accommodation is ± 10 °.
Hypocentrum element 4 is enclosed within the manhole 6 of vertebral elements 3; Described expansion regulating mechanism up and down 10 is, on hypocentrum element 4 walls, altitude mixture control bolt 34 is housed, hexagon in the head of altitude mixture control bolt 34 becomes, one head is shaped with square nut ratchet base 36 one end of ratchet 35 and engages with altitude mixture control bolt 34, and the other end is movably placed in a square opening 37 of hypocentrum element 4 walls; The corresponding lengthwise position of altitude mixture control bolt 34 filling at the hypocentrum element 4 being inserted on the wall of upper vertebral elements 3 has altitude mixture control operation slotted eye 38, on the wall of upper vertebral elements 3, is shaped with in the corresponding lengthwise position of square opening 37 of hypocentrum element 4 walls that are inserted in the ratchet wall 39 that the ratchet 35 of square nut ratchet base 36 can penetrate.The range of accommodation of upper and lower expansion regulating mechanism 10 height is 0～20mm.
Upper end fixing head 1 is provided with installation side wing plate 40 upwards, has two installing holes 41 of two screws 5 on installation side wing plate 40, and fixing head 1 upper surface in upper end is provided with ratchet 42; Lower end fixing head 2 is provided with downward installation side wing plate 43, opens two two installing holes 44 that have screw 4 on installation side wing plate 43, and fixing head 2 lower surfaces in lower end are provided with ratchet 45.
On upper vertebral elements 1 wall, have 4 longitudinal slotted eyes 46, on hypocentrum element 4 walls, have 4 longitudinal slotted eyes 47, longitudinally slotted eye 46 communicates with longitudinal slotted eye 47, longitudinally slotted eye 46 is to alleviate artificial vertebral body weight with the effect one of longitudinal slotted eye 47, the 2nd, and the action situation of observing vertebral elements 1, hypocentrum element 4 first gears 20, the second gear 31, square nut ratchet base 36 when for artificial vertebral body adjusting angle, height; Upper vertebral elements 3 lower end two sidewalls are provided with disymmetrical platform 48, and hypocentrum element 3 lower end two sidewalls are provided with disymmetrical platform 49.
The concrete adjustment operation of above-described embodiment is as follows: first according to clinical needs, the hypocentrum element 4 of expanding sleeve in the manhole 6 of upper vertebral elements 3, reach after requirement for height, with instrument rotation altitude mixture control bolt 34, the ratchet 35 of square nut ratchet base 36 heads is penetrated in upper vertebral elements 3 ratchet walls 39.Then regulate the second angular adjustment swivel head 32 of the first angular adjustment swivel head 21, the second joint and the angle-adjusting mechanism 9 of the first joint and angle-adjusting mechanism 8 with instrument rotation, make the folder degree α of upper end fixing head 1 upper surface and lower end fixing head 2 lower surfaces be adjusted to best angle, to adapt to the physiological camber of spinal column; Then rotate the first eccentric bolt 22, the second eccentric bolt 33 with instrument, by the first angular adjustment swivel head 21, the second angular adjustment swivel head 32 dieback location.
Claims (9)
1. the scalable artificial vertebral body of angle adjustment height, comprise upper end fixing head (1), lower end fixing head (2), upper vertebral elements (3), hypocentrum element (4) and screw (5), in upper vertebral elements (3) and hypocentrum element (4), be respectively equipped with manhole (6), (7), hypocentrum element (4) is enclosed within the manhole (6) of vertebral elements (3), or upper vertebral elements (3) is enclosed within the manhole (7) of hypocentrum element (4), it is characterized in that: between upper end fixing head (1) and upper vertebral elements (3), be provided with the first joint and angle-adjusting mechanism (8), between lower end fixing head (2) and hypocentrum element (4), be provided with the second joint and angle-adjusting mechanism (9), between upper vertebral elements (3) and hypocentrum element (4), be provided with upper and lower expansion regulating mechanism (10),
The first described joint and angle-adjusting mechanism (8) are that upper end fixing head (1) bottom becomes upper end fixing head dome arc surface (11), longitudinally establish two through hole (12) (13), between two through hole (12) (13), form upper end fixing head reinforcement (14), upper end fixing head dome arc surface (11) is shaped with the first trapezoidal engagement with rail or the first trapezoidal joint guide groove (15), and upper end fixing head reinforcement (14) bottom is shaped with the radian first angular adjustment tooth bar (16) consistent with upper end fixing head dome arc surface (11); Upper vertebral elements (3) upper surface is shaped with and upper end fixing head dome arc surface (11) the complementary upper vertebral elements concave arc curved surface (17) that matches, and is shaped with the first trapezoidal joint guide groove or the first trapezoidal engagement with rail (18) that match with upper end fixing head (1) bottom the first trapezoidal engagement with rail or the first trapezoidal joint guide groove (15) on upper vertebral elements concave arc curved surface (17); Upper vertebral elements (3) is provided with the first gear shaft (19), the first gear (20) and the first angular adjustment swivel head (21) are equipped with respectively in the first gear shaft (19) middle part and end, the first gear (20) is meshed with the first angular adjustment tooth bar (16), and upper vertebral elements (3) is upper is equipped with final the first eccentric bolt (22) that the first angular adjustment swivel head (21) dieback can be located in a side of the first angular adjustment swivel head (21);
Described the second joint and angle-adjusting mechanism (9) are lower end fixing head (2) top one-tenth lower end fixing head dome arc surfaces (23), longitudinally establish two through hole (24) and (25), between two through hole (24) (25), form lower end fixing head reinforcement (26), lower end fixing head dome arc surface (23) is shaped with the second trapezoidal engagement with rail or the second trapezoidal joint guide groove (27), and lower end fixing head reinforcement (26) top is shaped with the radian second angular adjustment tooth bar (28) consistent with lower end fixing head dome arc surface (23); Hypocentrum element (4) lower surface is shaped with the hypocentrum element concave arc curved surface (50) that matches complementary with lower end fixing head dome arc surface (23), is shaped with the second trapezoidal joint guide groove or the second trapezoidal engagement with rail (29) that match with lower end fixing head (2) top the second trapezoidal engagement with rail or the second trapezoidal joint guide groove (27) on hypocentrum element concave arc curved surface (50); Hypocentrum element (4) is provided with the second gear shaft (30), the second gear (31) and the second angular adjustment swivel head (32) are equipped with respectively in the second gear shaft (30) middle part and end, the second gear (31) is mutually meshing with the second angular adjustment tooth bar (28), and hypocentrum element (4) is upper is equipped with final the second eccentric bolt (33) that the second angular adjustment swivel head (32) dieback can be located in a side of the second angular adjustment swivel head (32).
2. the scalable artificial vertebral body of angle adjustment height according to claim 1, is characterized in that hypocentrum element (4) is enclosed within the manhole (6) of vertebral elements (3); Described expansion regulating mechanism up and down (10) is, on hypocentrum element (4) wall, altitude mixture control bolt (34) is housed, one head is shaped with square nut ratchet base (36) one end of ratchet (35) and engages with altitude mixture control bolt (34), and the other end is movably placed in a square opening (37) of hypocentrum element (4) wall; On the wall of upper vertebral elements (3), have altitude mixture control operation slotted eye (38) in the corresponding lengthwise position of altitude mixture control bolt (34) of hypocentrum element (4) dress being inserted in, on the wall of upper vertebral elements (3), be shaped with in the corresponding lengthwise position of square opening (37) of hypocentrum element (4) wall being inserted in the ratchet wall (39) that the ratchet (35) of square nut ratchet base (36) can penetrate.
3. the scalable artificial vertebral body of angle adjustment height according to claim 1 and 2, it is characterized in that upper end fixing head (1) is provided with installation side wing plate (40) upwards, on installation side wing plate (40), have the installing hole (41) of screw (5), upper end fixing head (1) upper surface is provided with ratchet (42); Lower end fixing head (2) is provided with downward installation side wing plate (43), has the installing hole (44) of screw (4) on installation side wing plate (43), and lower end fixing head (2) lower surface is provided with ratchet (45).
4. the scalable artificial vertebral body of angle adjustment height according to claim 1 and 2, it is characterized in that having on vertebral elements (1) wall two above longitudinally slotted eyes (46), on hypocentrum element (4) wall, having two longitudinal slotted eyes (46) of above longitudinally slotted eyes (47) communicates with longitudinal slotted eye (47); Upper vertebral elements (3) lower end two sidewalls are provided with disymmetrical platform (48) hypocentrum element (3) lower end two sidewalls and are provided with disymmetrical platform (49).
5. the scalable artificial vertebral body of angle adjustment height according to claim 3, it is characterized in that having on vertebral elements (1) wall two above longitudinally slotted eyes (46), on hypocentrum element (4) wall, having two longitudinal slotted eyes (46) of above longitudinally slotted eyes (47) communicates with longitudinal slotted eye (47); Upper vertebral elements (3) lower end two sidewalls are provided with disymmetrical platform (48) hypocentrum element (3) lower end two sidewalls and are provided with disymmetrical platform (49).
6. the scalable artificial vertebral body of angle adjustment height according to claim 1 and 2, is characterized in that upper end fixing head (1), lower end fixing head (2), upper vertebral elements (3), hypocentrum element (4) and screw (5) make with titanium alloy material; The wall thickness of upper vertebral elements (3), hypocentrum element (4) is 1～4 millimeter.
7. the scalable artificial vertebral body of angle adjustment height according to claim 3, is characterized in that upper end fixing head (1), lower end fixing head (2), upper vertebral elements (3), hypocentrum element (4) and screw (5) make with titanium alloy material; The wall thickness of upper vertebral elements (3), hypocentrum element (4) is 1～4 millimeter.
8. the scalable artificial vertebral body of angle adjustment height according to claim 4, is characterized in that upper end fixing head (1), lower end fixing head (2), upper vertebral elements (3), hypocentrum element (4) and screw (5) make with titanium alloy material; The wall thickness of upper vertebral elements (3), hypocentrum element (4) is 1～4 millimeter.
9. the scalable artificial vertebral body of angle adjustment height according to claim 5, is characterized in that upper end fixing head (1), lower end fixing head (2), upper vertebral elements (3), hypocentrum element (4) and screw (5) make with titanium alloy material; The wall thickness of upper vertebral elements (3), hypocentrum element (4) is 1～4 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097078.5U CN203710189U (en) | 2014-03-05 | 2014-03-05 | Artificial vertebral body adjustable in angle and retractable in height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097078.5U CN203710189U (en) | 2014-03-05 | 2014-03-05 | Artificial vertebral body adjustable in angle and retractable in height |
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| Publication Number | Publication Date |
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| CN203710189U true CN203710189U (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420097078.5U Withdrawn - After Issue CN203710189U (en) | 2014-03-05 | 2014-03-05 | Artificial vertebral body adjustable in angle and retractable in height |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103830024A (en) * | 2014-03-05 | 2014-06-04 | 浙江科惠医疗器械有限公司 | Adjustable angle and height telescopic artificial vertebral body |
| CN104840281A (en) * | 2015-05-29 | 2015-08-19 | 北京爱康宜诚医疗器材股份有限公司 | Artificial vertebra |
| CN112370220A (en) * | 2020-10-20 | 2021-02-19 | 广东施泰宝医疗科技有限公司 | Height-adjustable and rotatable vertebral prosthesis |
| CN115670758A (en) * | 2022-12-28 | 2023-02-03 | 北京爱康宜诚医疗器材有限公司 | Adjustable artificial vertebral body |
-
2014
- 2014-03-05 CN CN201420097078.5U patent/CN203710189U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103830024A (en) * | 2014-03-05 | 2014-06-04 | 浙江科惠医疗器械有限公司 | Adjustable angle and height telescopic artificial vertebral body |
| CN103830024B (en) * | 2014-03-05 | 2015-10-28 | 浙江科惠医疗器械股份有限公司 | Adjustable angle telescopic in height artificial vertebral body |
| CN104840281A (en) * | 2015-05-29 | 2015-08-19 | 北京爱康宜诚医疗器材股份有限公司 | Artificial vertebra |
| CN112370220A (en) * | 2020-10-20 | 2021-02-19 | 广东施泰宝医疗科技有限公司 | Height-adjustable and rotatable vertebral prosthesis |
| CN115670758A (en) * | 2022-12-28 | 2023-02-03 | 北京爱康宜诚医疗器材有限公司 | Adjustable artificial vertebral body |
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