A kind of spliced homogeneous allogenic bone fusion deviceTechnical field
The invention belongs to spinal fusion device technical field, it particularly relates to a kind of spliced homogeneous allogenic bone fusion device.
Background technology
Waist interbody fusion is one of method for treating spinal disease, and annual more and more crowds receive interbody fusionTreatment.Interbody fusion includes autologous bone transplanting fusion and allogenic bone transplantation fusion, due to autologous bone limited source, increases and suppliesArea's wound cannot provide the shortcomings of timely mechanically stable so that the clinical practice of interbody fusion is restricted, and different at presentBody bone collection limited amount, affects allograph bone in wide clinical application, so allograph bone utilization rate can be improved again by designingThe subject solved close to physiologico-anatomic product into needs.
Patent 201610422291.2 discloses a kind of spinal fusion device.It integrally has the three-dimensional porous structure communicated,By wire by weaving, being sintered.The spinal fusion device is overall structure, it is impossible to be provided timely mechanically stable.
Patent 201110409683.2 discloses a kind of spinal fusion device of lined with reinforced ribs, including agent structure and is embedded inMetal inner lining reinforced structure body therein, the agent structure are the tubular structure there are two hollow hole, and the metal inner lining addsMuscle structure includes the cylinder of two internal thread structures that metal connecting bridge is connected with by the metal connecting bridge, the metalConnecting bridge is in the tube wall of the tubular structure.Horizontal section imitates spinal anatomy, is carried by the form of lined with reinforced ribsHigh spinal fusion device integral strength, toughness increase the range of choice of novel biomaterial.It is main logical during implant surgeryCross metal liner muscle structural bearing main part enter it is internal, can to avoid spinal fusion device in surgical procedure, probably due toSevere mechanical environment damages, and seriously affects successful surgery.But the spinal fusion device is overall structure, it is impossible to be provided timelyIt is mechanically stable, allograph bone utilization rate is low.
Invention content
For the above-mentioned technical problem in the relevant technologies, the present invention proposes a kind of spliced homogeneous allogenic bone fusion device, bothThe utilization rate of allograph bone can be improved, and can be preferably close to physiological anatomic architecture.
To realize the above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of spliced homogeneous allogenic bone fusion device is made of left fusion body 1, right fusion body 2 and pin 3, describedIt is left fusion body with it is right fusion body can mutually be blocked by mechanical concaveconvex structure and, the pin 3 is arranged on spliced allogeneicThe trailer card of bone fusion device and position prevent left fusion body and right fusion body phase separation；The spliced allogeneicThe left fusion body of bone fusion device and right fusion body may be designed as symmetrical structure, mutually be glued left and right two parts by medical adhesiveIt closes.
1 tail portion of the left fusion body sets the first dovetail shaped protrusion 4, and head sets the first dovetail groove 5,
The right fusion body tail portion setting and the second dovetail groove 6 of the first dovetail shaped protrusions, the right fusionBody head sets the second dovetail shaped protrusion 7 to match with the first dovetail groove.
First through hole 8 is set on the left fusion body；
The second through-hole 9 is set on the right fusion body；
The pin connects together left fusion body with right fusion body with the second through-hole through first through hole；
The spliced homogeneous allogenic bone fusion device is provided with pawl shape spinous process 10 in both sides up and down, convenient for holding centrum,Centre setting bone grafting hole 11, implantable bone bits, conducive to the generation of bone.The spliced homogeneous allogenic bone fusion device head petitionWarhead shape 12, convenient for implantation.
The spliced homogeneous allogenic bone fusion device pawl shape spinous process face is set in radian.
The bone grafting hole is in ellipticity.
Slot 13 is symmetrical arranged on the outside of the spliced homogeneous allogenic bone fusion device, tail portion is threaded hole 14, above-mentioned to setIt puts and is captured convenient for instrument.
Beneficial effects of the present invention：Due to allograph bone limited source, and its is expensive, so the abundant use of allograph boneSeem critically important, it is not only stringent to the shape performance requirement of allograph bone directly to process whole Invasive lumbar fusion device, Er QiehuiThe waste of allograph bone is significantly caused, and the spliced homogeneous allogenic bone fusion device in the present invention can be spliced, it is rightThe limitation of allograph bone shape is small, can improve the utilization rate of allograph bone to greatest extent.
Description of the drawings
Fig. 1 is the front view of homogeneous allogenic bone fusion device；
Fig. 2 is the vertical view of homogeneous allogenic bone fusion device；
Fig. 3 is the left view of homogeneous allogenic bone fusion device；
Fig. 4 is left fusion body structure diagram；
Fig. 5 is right fusion body structure diagram；
Fig. 6 is pawl shape spinous process and slot structure schematic diagram；
Fig. 7 is thread pore structure schematic diagram；
In figure, the right fusion bodies of left fusion body, the 2- of 1-, 3- pins, the first dovetail shapeds of 4- protrusion, the first dovetail grooves of 5-,The second dovetail grooves of 6-, the second dovetail shapeds of 7- protrusion, 8- first through hole, the second through-holes of 9-, 10- pawl shapes spinous process, 11- bone graftings hole,12- bullet-shapeds head, 13- slots, 14- threaded holes.
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments.
A kind of spliced homogeneous allogenic bone fusion device, as shown in figs. 1-7, by left fusion body 1, right fusion body 2 and pinNail 3 composition, it is described it is left fusion body and it is right fusion body can mutually be blocked by mechanical concaveconvex structure and, the pin 3 is arranged on spellingTrailer card and the position of formula homogeneous allogenic bone fusion device are connect, prevents left fusion body and right fusion body phase separation；The spellingIt connects the left fusion body of formula homogeneous allogenic bone fusion device and right fusion body may be designed as symmetrical structure, it will left and right by medical adhesiveTwo parts are bonding.
1 tail portion of the left fusion body sets the first dovetail shaped protrusion 4, and head sets the first dovetail groove 5,
The right fusion body tail portion setting and the second dovetail groove 6 of the first dovetail shaped protrusions, the right fusionBody head sets the second dovetail shaped protrusion 7 to match with the first dovetail groove.
First through hole 8 is set on the left fusion body；
The second through-hole 9 is set on the right fusion body；
The pin connects together left fusion body with right fusion body with the second through-hole through first through hole；
The spliced homogeneous allogenic bone fusion device is provided with pawl shape spinous process 10 in both sides up and down, convenient for holding centrum,Centre setting bone grafting hole 11, implantable bone bits, conducive to the generation of bone.The spliced homogeneous allogenic bone fusion device head petitionWarhead shape 12, convenient for implantation.
The spliced homogeneous allogenic bone fusion device pawl shape spinous process face is set in radian.
The bone grafting hole is in ellipticity.
Slot 13 is symmetrical arranged on the outside of the spliced homogeneous allogenic bone fusion device, tail portion is threaded hole 14, above-mentioned to setIt puts and is captured convenient for instrument.
Due to allograph bone limited source, and its is expensive, so the abundant use of allograph bone seems critically important, directly addsIt is not only stringent to the shape performance requirement of allograph bone that work goes out whole Invasive lumbar fusion device, but also can significantly cause allosomeThe waste of bone, and the spliced homogeneous allogenic bone fusion device in the present invention can be spliced, it is small to the limitation of allograph bone shape, it canTo improve the utilization rate of allograph bone to greatest extent.