CN108175545B - Integrated frame type lumbar interbody fusion cage with lateral access pins - Google Patents
Integrated frame type lumbar interbody fusion cage with lateral access pins Download PDFInfo
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- CN108175545B CN108175545B CN201810115172.1A CN201810115172A CN108175545B CN 108175545 B CN108175545 B CN 108175545B CN 201810115172 A CN201810115172 A CN 201810115172A CN 108175545 B CN108175545 B CN 108175545B
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- 230000004927 fusion Effects 0.000 title claims abstract description 126
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 134
- 238000010009 beating Methods 0.000 claims description 30
- 238000006073 displacement reaction Methods 0.000 claims description 21
- 238000002513 implantation Methods 0.000 abstract 1
- 208000008035 Back Pain Diseases 0.000 description 3
- 208000008930 Low Back Pain Diseases 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000007850 degeneration Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 206010022562 Intermittent claudication Diseases 0.000 description 1
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 1
- 206010050296 Intervertebral disc protrusion Diseases 0.000 description 1
- 201000001880 Sexual dysfunction Diseases 0.000 description 1
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000013872 defecation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005786 degenerative changes Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000021156 intermittent vascular claudication Diseases 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 206010025005 lumbar spinal stenosis Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000027939 micturition Effects 0.000 description 1
- 231100000862 numbness Toxicity 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 231100000872 sexual dysfunction Toxicity 0.000 description 1
- 230000009295 sperm incapacitation Effects 0.000 description 1
- 208000005198 spinal stenosis Diseases 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Classifications
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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
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model provides an integrated frame lumbar vertebrae interbody fusion cage of side implantation way, including supporting the examination mould, hold the pole, the fluting chisel, external frame and inside bone grafting fusion cage, be equipped with the support examination mould on the support examination mould and hold the screw hole, hold and be equipped with the pole screw thread on the pole front end, be equipped with the external frame on the external frame and hold the screw hole, external frame bone grafting upper and lower through-hole and the inside bone grafting fusion cage mounting groove of external frame front side, be equipped with inside bone grafting fusion cage upper and lower bone grafting hole and inside bone grafting fusion cage on the inside bone grafting fusion cage and hold the screw hole, be equipped with the fixed pin of external frame on the external frame, the locking slide can be moved in the external frame locking spout and insert inside bone grafting fusion cage locking spout, consequently, support examination mould entering intervertebral space after, and external frame is directly put into along the support examination mould periphery, then take out the support examination mould again, put into the inside bone grafting fusion cage of supporting bone grafting along the interior track of external frame, realize the characteristics that the operation success rate is high.
Description
Technical Field
The invention relates to a side access pin integrated frame type lumbar interbody fusion cage.
Background
Lumbar intervertebral disc protrusion, lumbar spinal stenosis, unstable lumbar vertebra segment, lumbar vertebra slippage and other diseases caused by lumbar vertebra degeneration are quite common clinically. However, lumbar degeneration can cause lumbago and numbness of lower limbs, intermittent claudication, and even clinical symptoms of urination and defecation and sexual dysfunction, which seriously affect the life health and quality of life of patients. Lancet journal shows according to world disease burden data analysis: lumbago is the first disease with great burden of Chinese 10, and from 1990 to 20 years of 2010, lumbago is always the primary reason for the incapacitation of Chinese, and causes great economic and social burden to individuals, families and the whole Chinese society.
Lumbar fusion is currently the most common way to treat lumbar degenerative changes, and its development has been known for centuries. The number of spinal fusion patients in the United states in 1990 reaches 46500 cases, and in 1998 to 2008, the number of cervical vertebra, thoracic vertebra and lumbar vertebra fusion cases is respectively increased by 90%,61% and 141% in every 10 ten thousands of people, and the average treatment cost of each lumbar vertebra fusion case reaches US $ 80,888.
The existing lumbar fusion device has some defects: 1 in the operation process, after the intervertebral is placed into the test mould, the intervertebral space can be restored to the original position naturally again, the compression is narrowed, the difficulty of beating the intervertebral fusion cage is often caused, the angle is sometimes changed, the end plate is damaged, the path is changed, and the intervertebral fusion cage is wrongly placed into the vertebral body; 2, because the bone blocks in the fusion device are easy to drop and lose due to the fact that the beating is needed by forceful beating, the effective bone grafting quantity cannot be achieved, the intervertebral fusion is affected, even the operation is failed, and then the operation is performed. The need for post-operative fixation of the rod system also increases trauma, surgical incision, surgical time, and surgical costs for some patients.
Disclosure of Invention
In view of the above technical problems, the present invention provides: the inner fusion device body and the outer frame are fixed through the locking sliding plate and are composed of the inner fusion device body and the outer frame, namely, after the test mould enters the intervertebral space, the inner fusion device body and the outer frame are not directly taken out, but the outer frame is directly put in along the periphery of the test mould to play a role in keeping the intervertebral space open, then the test mould is taken out, and then the inner fusion device of the matched bone grafting is put in the fusion device along the inner track of the outer frame.
In order to solve the technical problems, the invention adopts the following technical scheme: the side-implantation-path-pin-integrated frame-type lumbar interbody fusion cage comprises a support test mold, a slotted chisel, an outer frame and an inner bone grafting fusion cage, wherein the support test mold is an arc support plate, the support test mold is provided with a support test mold holding threaded hole, the front end of the holding rod is provided with an outer frame holding threaded hole, an outer frame bone grafting upper and lower through hole and an outer frame front side inner bone grafting fusion cage mounting groove, the inner bone grafting fusion cage is provided with an inner bone grafting fusion cage upper and lower bone grafting hole and an inner bone grafting fusion cage holding threaded hole, after the inner bone grafting fusion cage is inserted into the outer frame front side inner bone grafting fusion cage mounting groove, the outer frame bone grafting upper and lower through hole is communicated with the inner bone grafting fusion cage upper and lower bone grafting fusion cage mounting groove, the support test mold can be inserted into the outer frame front side inner bone grafting fusion cage threaded hole, the holding rod screw thread can be matched with the outer frame holding threaded hole, the holding rod can be matched with the outer frame holding threaded hole, the inner frame holding threaded hole can be provided with a locking sliding groove, the inner side of the inner frame is provided with a locking sliding groove, the inner sliding groove is arranged on the inner side of the outer frame is provided with a locking sliding groove, the locking sliding groove is arranged on the inner side of the sliding groove, the sliding groove is arranged on the sliding groove is locked on the sliding groove, and the sliding groove is locked on the sliding groove, the locking slide is movable within the outer frame locking slide and is inserted into the inner bone graft fusion cage locking slide.
The side access pin integrated frame type lumbar intervertebral cage provided by the invention has the beneficial effects that: the support test mold is an arc support plate, the support test mold is provided with a support test mold holding threaded hole, the front end of the holding rod is provided with a holding rod thread, the outer frame is provided with an outer frame holding threaded hole, an outer frame bone grafting upper and lower through hole and an outer frame front side inner bone grafting fusion device mounting groove, the inner bone grafting fusion device is provided with an inner bone grafting fusion device upper and lower bone grafting hole and an inner bone grafting fusion device holding threaded hole, after the inner bone grafting fusion device is inserted into the outer frame front side inner bone grafting fusion device mounting groove, the outer frame bone grafting upper and lower through hole is communicated with the inner bone grafting fusion device upper and lower bone grafting hole, the support test mold can be inserted into the outer frame front side inner bone grafting fusion device mounting groove, the holding rod screw thread can be matched with the holding screw hole of the supporting test mold, the holding rod screw thread can be matched with the holding screw hole of the external frame, the holding rod screw thread can be matched with the holding screw hole of the internal bone grafting fusion device, an external frame locking chute is arranged on the front side part of the external frame, a locking slide plate is arranged on the external frame locking chute, a positioning groove on the locking slide plate is arranged on the upper inner wall of the external frame locking chute, a lower positioning groove of the locking slide plate is arranged on the lower inner wall of the locking chute, the upper part of the locking slide plate is inserted into the positioning groove on the locking slide plate, the lower part of the locking slide plate is inserted into the lower positioning groove of the locking slide plate, a locking slide plate dragging hole is arranged on the locking slide plate, a locking chute of the internal bone grafting fusion device is arranged on the front side part of the internal bone grafting fusion device, the locking slide is movable within the outer frame locking slide and is inserted into the inner bone graft fusion cage locking slide.
Therefore, when the external frame is used, the holding rod can be screwed into the holding threaded hole of the supporting test mould, the supporting test mould is inserted into the lumbar intervertebral space through the holding rod to prop up the lumbar intervertebral space, the external frame fixing pin slot is chiseled out on the lumbar through the slotted chisel, then the holding rod is detached and installed on the external frame, the external frame is inserted into the lumbar intervertebral space propped up by the supporting test mould along the periphery of the supporting test mould through the holding rod, the external frame fixing pin on the external frame is inserted into the slot chiseled out by the slotted chisel, the external frame fixing pin is tightly abutted and matched with the inner wall of the slot chiseled out by the slotted chisel, so that the external frame is firmly installed without the need of fixing a post pin system, the wound and the operation incision are not increased, and the external frame is easy to insert after the lumbar intervertebral space is propped up by the supporting test mould, after the outer frame is installed, the holding rod is detached from the outer frame and is installed on the supporting test mold, the supporting test mold is taken out, finally, the holding rod is detached from the supporting test mold and is installed on the holding threaded hole of the inner bone grafting fusion device, the inner bone grafting fusion device with the bone grafting block is installed in the inner bone grafting fusion device installation groove at the front side of the outer frame, the inner bone grafting fusion device can be easily and stably installed in the outer frame, under the support of the outer frame, the situation that the intervertebral space can be restored to the original position again naturally can not occur, the bone grafting fusion device can not be extruded by the upper lumbar vertebra and the lower lumbar vertebra, the situation that the bone grafting fusion device is difficult to be beaten and placed in the intervertebral bone grafting fusion device can not occur frequently, the bone block in the bone grafting fusion device can not fall down and be lost due to the beating force, and the situation that the effective bone grafting quantity can not be achieved,
that is, the device consists of an inner fusion cage body and an outer frame, namely, after a supporting test mold enters an intervertebral space, the outer frame is not directly taken out, but is directly put in along the periphery of the supporting test mold, the supporting test mold plays a role of keeping the intervertebral space open, then the supporting test mold is taken out, and then the inner bone grafting fusion cage matched with bone grafting is put in along the inner track of the outer frame, thereby realizing the characteristic of high success rate of operation,
after the internal bone grafting fusion device is installed in the installation groove of the internal bone grafting fusion device at the front side of the external frame, the locking sliding plate is hooked through the hook to drag the hole, the locking sliding plate is dragged, one end of the locking sliding plate is inserted into the locking sliding groove of the internal bone grafting fusion device, locking of the internal bone grafting fusion device is achieved, the internal bone grafting fusion device is stably installed on the external frame, and the internal bone grafting fusion device is prevented from falling off.
Further, be equipped with inside bone grafting fusion ware positioning groove on the inner wall of outside frame front side inside bone grafting fusion ware mounting groove, the lateral part of inside bone grafting fusion ware is equipped with inside bone grafting fusion ware location boss, inside bone grafting fusion ware positioning groove cooperatees with inside bone grafting fusion ware location boss, and this kind of structure makes inside bone grafting fusion ware more steady when inserting.
Further, the outer frame fixing pins comprise an outer frame left upper fixing pin, an outer frame left lower fixing pin, an outer frame right upper fixing pin and an outer frame right lower fixing pin, and the outer frame left upper fixing pin, the outer frame left lower fixing pin, the outer frame right upper fixing pin and the outer frame right lower fixing pin are distributed on the upper side and the lower side of the outer frame in pairs, and are fixed on four corners of the outer frame due to the fact that the four outer frame fixing pins are arranged.
Further, the slotting chisel comprises a slotting chisel bit, a slotting chisel sleeve and a slotting chisel beating boss, the slotting chisel bit comprises a bit frame beam, a bit frame left vertical beam and a bit frame right vertical beam, the bit frame beam is arranged at the front end of the slotting chisel sleeve, the slotting chisel beating boss is arranged at the tail end of the slotting chisel sleeve, the bit frame left vertical beam is arranged at the left end of the bit frame beam, the bit frame right vertical beam is arranged at the right end of the bit frame beam, the upper end of the bit frame left vertical beam is provided with an upper left bit, the lower end of the bit frame left vertical beam is provided with a lower left bit, the upper end of the bit frame right vertical beam is provided with an upper right bit, the lower end of the right vertical beam of the tool bit frame is provided with a right lower tool bit, the tool bit frame cross beam, the left vertical beam of the tool bit frame, the right vertical beam of the tool bit frame, the left upper tool bit, the left lower tool bit, the right upper tool bit and the right lower tool bit are matched to form a cutting tool bit displacement space, the support test die can enter the cutting tool bit displacement space, the tool bit frame cross beam is provided with a tool bit frame cross beam displacement hole, the cutting tool bit frame cross beam displacement hole, the hole on the cutting tool sleeve and the cutting tool tapping boss displacement Kong Yici are communicated, so that the tool bit frame cross beam, the cutting tool sleeve and the cutting tool tapping boss sleeve are sleeved on the holding rod and can move back and forth,
therefore, the utility model has the advantages that when in use, the beam of the cutter head frame, the sleeve of the slotting chisel and the knocking boss of the slotting chisel are sleeved on the holding rod, the supporting test die can enter the displacement space of the slotting chisel, which is equivalent to the claw shape of the slotting chisel, the supporting test die can be inserted into the hollow part of the claw-shaped slotting chisel, the front and back movement can be realized, thus, the external frame fixed pin installation groove can be opened by the slotting chisel only through the hammer, the supporting test die can be slotted without disassembly, the depth of the groove is deeper, the supporting test die enters the displacement space of the slotting chisel,
and tool bit frame crossbeam, fluting chisel sleeve pipe and fluting chisel beat boss cover and establish behind the grip lever, grip lever play the locate action to the fluting chisel, prevent that the fluting chisel from rocking about when fluting for it is more laborsaving accurate when fluting, prevent that the groove from opening the off tracking, have four tool bits of upper left tool bit, lower left tool bit, upper right tool bit and lower right tool bit in addition, can offer four external frame fixed pin mounting grooves simultaneously.
Further, the front ends of the left upper tool bit, the left lower tool bit, the right upper tool bit and the right lower tool bit are all obliquely arranged, the front end of the left upper tool bit is provided with a left upper tool bit slot so that the left upper tool bit is provided with a left upper tool bit positioning tip, the inner wall of the left upper tool bit is provided with a left upper tool bit bone slot, the left upper tool bit slot is communicated with the left upper tool bit bone slot, the front end of the left lower tool bit is provided with a left lower tool bit positioning tip, the inner wall of the left lower tool bit is provided with a left lower tool bit bone slot, the left upper tool bit bone slot is communicated with the left lower tool bit bone slot, the front end of the right upper tool bit is provided with a right upper tool bit slot so that the right upper tool bit is positioned on the right upper tool bit, the inner wall of the right upper tool bit is provided with a right upper tool bit bone slot, the front end of the right lower tool bit is provided with a right lower tool bit bone slot so that the left lower tool bit bone slot is communicated with the right upper tool bit bone slot, the front end of the left lower tool bit is provided with a right lower tool bit bone slot,
therefore, the effect is, when using, upper left tool bit location point portion, lower left tool bit location point portion, upper right tool bit location point portion and lower right tool bit location point portion can insert the lumbar vertebrae more easily, play the positioning action, the piece that the fluting produced can follow upper left tool bit slotting, upper left tool bit play bone groove, lower left tool bit slotting, upper right tool bit play bone groove, lower right tool bit slotting and lower right tool bit play bone groove and fall out for the fluting tool bit is smooth when advancing, and the resistance is littleer, prevents to beat excessively and produces the injury to the patient.
Further, the anti-rotation positioning pin is arranged on the slotting chisel beating boss, the front end of the anti-rotation positioning pin enters the slotting chisel beating boss displacement hole, the holding rod is provided with an anti-rotation positioning groove, when the slotting chisel beating boss is sleeved on the holding rod, the anti-rotation positioning pin on the slotting chisel beating boss enters the anti-rotation positioning groove to be in butt fit,
therefore, the anti-rotation positioning pin on the knocking boss of the slotting chisel enters the anti-rotation positioning groove to be in butt fit when the slotting chisel is used, the slotting chisel can be prevented from rotating, the slotting chisel can only move forwards and backwards, and slotting is more accurate.
The invention is further described below with reference to the drawings and detailed description.
Drawings
Fig. 1 is a schematic structural view of a support test mold, a holding rod and a slotting chisel of a side access pin integrated frame lumbar interbody fusion cage provided by the invention;
figure 2 is a second schematic view of the supporting test mold, the holding rod and the slotting chisel of the side access pin integrated frame lumbar interbody fusion cage;
fig. 3 is a schematic structural view of a support test mold, a holding rod and an external frame of the lateral approach pin integrated frame lumbar interbody fusion cage provided by the invention;
fig. 4 is a schematic structural view of an external frame and an internal bone grafting fusion device of a side access pin integrated frame type lumbar interbody fusion device according to the present invention;
FIG. 5 is a schematic view of a second embodiment of an external frame and an internal bone graft fusion cage of a side entry pin integrated frame lumbar interbody fusion cage according to the present invention;
fig. 6 is a schematic structural view of an external frame of a side access pin integrated frame lumbar interbody cage according to the present invention;
fig. 7 is a schematic structural view of an internal bone grafting fusion device of a side access pin integrated frame type lumbar intervertebral fusion device provided by the invention;
fig. 8 is a schematic structural view of a supporting test mold of a side access pin integrated frame lumbar interbody fusion cage provided by the invention;
fig. 9 is a schematic structural view of a holding rod and an external frame of a side access pin integrated frame type lumbar interbody fusion cage provided by the present invention;
fig. 10 is a schematic structural view of a holding rod and an internal bone grafting fusion device of a side access pin integrated frame type lumbar intervertebral fusion device provided by the invention;
figure 11 is a schematic structural view of a slotting chisel of a side access pin integrated frame lumbar interbody fusion cage according to the present invention;
figure 12 is a second schematic view of the structure of a slotted chisel of the side access pin integrated frame lumbar interbody fusion cage of the present invention;
figure 13 is a third schematic view of the structure of a slotted chisel of a side access pin integrated frame lumbar interbody cage according to the present invention;
figure 14 is a schematic structural view of a slotted chisel of a side access pin integrated frame lumbar interbody fusion cage according to the present invention;
fig. 15 is a schematic view of a partially enlarged structure of an outer frame of a lateral access pin-integrated frame lumbar interbody fusion cage according to the present invention.
Detailed Description
As shown in fig. 1 to 15, the embodiment of the lateral approach pin integrated frame type lumbar intervertebral fusion device provided by the invention comprises a support test mold 1, a holding rod 2, a slotting chisel 3, an outer frame 4 and an inner bone fusion device 5, wherein the support test mold 1 is an arc support plate, the support test mold 1 is provided with a holding threaded hole 6 of the support test mold, the front end of the holding rod 2 is provided with a holding rod thread 7, the outer frame 4 is provided with an outer frame holding threaded hole 8, an outer frame bone grafting upper and lower through hole 10 and an outer frame front inner bone fusion device mounting groove 11, the inner bone fusion device 5 is provided with an inner bone grafting upper and lower bone grafting hole 12 and an inner bone fusion device holding threaded hole 13, after the inner bone fusion device 5 is inserted into the outer frame front inner bone fusion device mounting groove 11, the upper and lower through holes 10 of the outer frame bone grafting are communicated with the upper and lower bone grafting holes 12 of the inner bone grafting fusion device, the supporting test die 1 can be inserted into the inner bone grafting fusion device mounting groove 11 at the front side of the outer frame, the holding rod screw thread 7 can be matched with the holding screw hole 6 of the supporting test die, the holding rod screw thread 7 can be matched with the holding screw hole 8 of the outer frame, the holding rod screw thread 7 can be matched with the holding screw hole 13 of the inner bone grafting fusion device, the front side part of the outer frame 4 is provided with an outer frame locking chute e1, the outer frame locking chute e1 is provided with a locking slide plate e2, the upper inner wall of the outer frame locking chute e1 is provided with a locking slide plate upper positioning groove e3, the lower inner wall of the locking chute e1 is provided with a locking slide plate lower positioning groove e4, the upper part of the locking slide plate e2 is inserted into the locking slide plate upper positioning groove e3, the lower part of the locking slide plate e2 is inserted into the locking slide plate lower positioning groove e4, the locking slide plate e2 is provided with a locking slide plate dragging hole e5, the front side part of the internal bone grafting fusion device 5 is provided with an internal bone grafting fusion device locking chute e6, and the locking slide plate e2 can move in the external frame locking chute e1 and be inserted into the internal bone grafting fusion device locking chute e 6.
An inner bone grafting fusion device positioning groove e7 is formed in the inner wall of the outer frame front inner bone grafting fusion device mounting groove 11, an inner bone grafting fusion device positioning boss e8 is arranged on the side portion of the inner bone grafting fusion device 5, and the inner bone grafting fusion device positioning groove e7 is matched with the inner bone grafting fusion device positioning boss e 8.
The outer frame fixing pins 9 comprise an outer frame left upper fixing pin 18, an outer frame left lower fixing pin 19, an outer frame right upper fixing pin 20 and an outer frame right lower fixing pin 21, and the outer frame left upper fixing pin 18, the outer frame left lower fixing pin 19, the outer frame right upper fixing pin 20 and the outer frame right lower fixing pin 21 are distributed on the upper side and the lower side of the outer frame 4 in pairs.
The slotting chisel 3 comprises a slotting chisel bit a1, a slotting chisel sleeve a2 and a slotting chisel beating boss a3, the slotting chisel bit a1 comprises a bit frame beam a4, a bit frame left vertical beam a5 and a bit frame right vertical beam a6, the bit frame beam a4 is arranged at the front end of the slotting chisel sleeve a2, the slotting chisel beating boss a3 is arranged at the tail end of the slotting chisel sleeve a2, the bit frame left vertical beam a5 is arranged at the left end of the bit frame beam a4, the bit frame right vertical beam a6 is arranged at the right end of the bit frame beam a4, the upper end of the bit frame left vertical beam a5 is provided with an upper left bit a7, the lower end of the bit frame left vertical beam a5 is provided with a lower left bit a8, the upper end of the bit frame right vertical beam a6 is provided with an upper right bit a9, the lower end of the bit frame right vertical beam a6 is provided with a lower right bit a10, the tool bit frame beam a4, the tool bit frame left vertical beam a5, the tool bit frame right vertical beam a6, the left upper tool bit a7, the left lower tool bit a8, the right upper tool bit a9 and the right lower tool bit a10 are matched to form a slotting cutter bit displacement space a11, the support test die 1 can enter the slotting cutter bit displacement space a11, the tool bit frame beam a4 is provided with a tool bit frame beam displacement hole a12, a slotting cutter beating boss displacement hole a13 is formed in a slotting cutter beating boss a3, and the tool bit frame beam displacement hole a12, a hole in a slotting cutter sleeve a2 and the slotting cutter beating boss displacement hole a13 are sequentially communicated, so that the tool bit frame beam a4, the slotting cutter sleeve a2 and the slotting cutter beating boss a3 are sleeved on the holding rod 2 and can move back and forth.
The front ends of the left upper cutter head a7, the left lower cutter head a8, the right upper cutter head a9 and the right lower cutter head a10 are all obliquely arranged, the front end of the left upper cutter head a7 is provided with a left upper cutter head slotting a14, the left upper cutter head a7 is provided with a left upper cutter head locating tip a15, the inner wall of the left upper cutter head a7 is provided with a left upper cutter head slotting a16, the left upper cutter head slotting a14 is communicated with the left upper cutter head slotting a16, the front end of the left lower cutter head a8 is provided with a left lower cutter head slotting a17, the left lower cutter head slotting a19 is arranged on the inner wall of the left lower cutter head a8, the left upper cutter head slotting a16 is communicated with the left lower cutter head slotting a19, the front end of the right upper cutter head slotting a9 is provided with a right upper cutter head slotting a20, the right upper cutter head slotting a21 is communicated with the right lower cutter head slotting a22, the right cutter head slotting a25 is arranged on the inner wall of the right lower cutter head slotting a10, the left lower cutter head slotting a9 is communicated with the right lower cutter head slotting a10, and the lower cutter head slotting a25 is arranged on the inner wall of the right lower cutter head slotting a 10.
The anti-rotation positioning pin a26 is arranged on the slotting chisel beating boss a3, the front end of the anti-rotation positioning pin a26 enters the slotting chisel beating boss displacement hole a13, the holding rod 2 is provided with an anti-rotation positioning groove a27, and when the slotting chisel beating boss a3 is sleeved on the holding rod 2, the anti-rotation positioning pin a26 on the slotting chisel beating boss a3 enters the anti-rotation positioning groove a27 to be in butt fit.
As required, detailed embodiments of the present invention are disclosed herein, but it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. The figures are not necessarily drawn to scale. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (1)
1. An integrated frame lumbar interbody fusion cage of side access pin, its characterized in that: the device comprises a supporting test die (1), a holding rod (2), a slotting chisel (3), an outer frame (4) and an inner bone grafting fusion device (5), wherein the supporting test die (1) is an arc supporting plate, the supporting test die (1) is provided with a supporting test die holding threaded hole (6), the front end of the holding rod (2) is provided with a holding rod thread (7), the outer frame (4) is provided with an outer frame holding threaded hole (8), an outer frame fixing pin (9) which protrudes vertically upwards, an outer frame bone grafting upper and lower through hole (10) and an outer frame front side inner bone grafting fusion device mounting groove (11), the inner bone grafting fusion device (5) is provided with an inner bone grafting fusion device upper and lower bone grafting hole (12) and an inner bone grafting fusion device holding threaded hole (13), after the inner bone grafting fusion device (5) is inserted into the outer frame front side inner bone grafting fusion device mounting groove (11), the outer frame bone upper and lower through hole (10) is communicated with the inner bone grafting fusion device upper and lower bone grafting hole (12), the supporting test die (1) can be inserted into the inner frame front side inner frame mounting groove (7) and the holding threaded hole (11) can be matched with the thread of the supporting test die (7), the holding rod screw thread (7) can be matched with the holding screw hole (13) of the internal bone grafting fusion device, an external frame locking chute (e 1) is arranged on the front side part of the external frame (4), a locking slide plate (e 2) is arranged on the external frame locking chute (e 1), an upper locking chute (e 3) is arranged on the upper inner wall of the external frame locking chute (e 1), a lower locking chute (e 4) is arranged on the lower inner wall of the external frame locking chute (e 1), the upper part of the locking slide plate (e 2) is inserted into the upper locking chute (e 3), the lower part of the locking slide plate (e 2) is inserted into the lower locking chute (e 4), a locking slide plate locking chute (e 5) is arranged on the front side part of the internal bone grafting fusion device (5), and the locking slide plate (e 2) can move in the external frame locking chute (e 1) and be inserted into the locking chute (e 6) of the internal bone grafting fusion device;
an inner bone grafting fusion device positioning groove (e 7) is formed in the inner wall of the inner bone grafting fusion device mounting groove (11) on the front side of the outer frame, an inner bone grafting fusion device positioning boss (e 8) is arranged on the side part of the inner bone grafting fusion device (5), and the inner bone grafting fusion device positioning groove (e 7) is matched with the inner bone grafting fusion device positioning boss (e 8);
the external frame fixing pins (9) are used for being inserted into slots of the slotting chisel (3) for chiseling lumbar vertebrae, the external frame fixing pins (9) comprise external frame left upper fixing pins (18), external frame left lower fixing pins (19), external frame right upper fixing pins (20) and external frame right lower fixing pins (21), and the external frame left upper fixing pins (18), the external frame left lower fixing pins (19), the external frame right upper fixing pins (20) and the external frame right lower fixing pins (21) are distributed on the upper side and the lower side of the external frame (4) in pairs;
the slotting chisel (3) comprises a slotting chisel bit (a 1), a slotting chisel sleeve (a 2) and a slotting chisel beating boss (a 3), the slotting chisel bit (a 1) comprises a bit frame cross beam (a 4), a bit frame left vertical beam (a 5) and a bit frame right vertical beam (a 6), the bit frame cross beam (a 4) is arranged at the front end of the slotting chisel sleeve (a 2), the slotting chisel beating boss (a 3) is arranged at the tail end of the slotting chisel sleeve (a 2), the bit frame left vertical beam (a 5) is arranged at the left end of the bit frame cross beam (a 4), the bit frame right vertical beam (a 6) is arranged at the right end of the bit frame cross beam (a 4), the upper end of the bit frame left vertical beam (a 5) is provided with an upper left bit (a 7), the lower end of the bit frame left vertical beam (a 5) is provided with a lower left bit (a 8), the upper end of the bit frame right vertical beam (a 6) is provided with an upper bit 9, the lower bit frame (a) is formed with a lower bit frame (a) and the lower bit frame (a) is matched with the left bit frame (a 5), the lower bit frame (a) is formed with the lower bit frame (a 5), the bit frame (a 5) is matched with the lower bit frame (a) and the bit frame (a 5) is formed with the bit frame lower bit (a 5), the support test die (1) can enter a slotting chisel bit displacement space (a 11), a bit frame beam (a 4) is provided with a bit frame beam displacement hole (a 12), a slotting chisel beating boss (a 3) is provided with a slotting chisel beating boss displacement hole (a 13), and the bit frame beam displacement hole (a 12), a hole on a slotting chisel sleeve (a 2) and the slotting chisel beating boss displacement hole (a 13) are communicated in sequence, so that the bit frame beam (a 4), the slotting chisel sleeve (a 2) and the slotting chisel beating boss (a 3) are sleeved on the holding rod (2) and can move back and forth;
the front ends of the left upper cutter (a 7), the left lower cutter (a 8), the right upper cutter (a 9) and the right lower cutter (a 10) are all obliquely arranged, the front end of the left upper cutter (a 7) is provided with a left upper cutter slotting (a 14) so that the left upper cutter (a 7) is provided with a left upper cutter positioning tip part (a 15), the inner wall of the left upper cutter (a 7) is provided with a left upper cutter slotting (a 16), the left upper cutter slotting (a 14) is communicated with the left upper cutter slotting (a 16), the front end of the left lower cutter (a 8) is provided with a left lower cutter slotting (a 17) so that the left lower cutter (a 8) is provided with a left lower cutter positioning tip part (a 18), the inner wall of the left lower cutter (a 8) is provided with a left lower cutter slotting (a 19), the left upper cutter slotting (a 16) is communicated with the left lower cutter positioning tip part (a 19), the left upper cutter slotting (a 16) is communicated with the left upper cutter slotting (a 20), the front end of the right upper cutter (a 20) is provided with the front end of the right upper cutter (a 9) and the front end of the right upper cutter (a 20), the lower right cutter head (a 10) is provided with a lower right cutter head positioning tip (a 24), a lower right cutter head bone outlet groove (a 25) is formed in the inner wall of the lower right cutter head (a 10), the lower right cutter head slotting (a 23) is communicated with the lower right cutter head bone outlet groove (a 25), and the upper right cutter head bone outlet groove (a 22) and the lower right cutter head bone outlet groove (a 25) are oppositely arranged;
the anti-rotation positioning pin (a 26) is arranged on the grooving chisel beating boss (a 3), the front end of the anti-rotation positioning pin (a 26) enters the grooving chisel beating boss displacement hole (a 13), the holding rod (2) is provided with an anti-rotation positioning groove (a 27), and when the grooving chisel beating boss (a 3) is sleeved on the holding rod (2), the anti-rotation positioning pin (a 26) on the grooving chisel beating boss (a 3) enters the anti-rotation positioning groove (a 27) to be in butt fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810115172.1A CN108175545B (en) | 2018-02-06 | 2018-02-06 | Integrated frame type lumbar interbody fusion cage with lateral access pins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810115172.1A CN108175545B (en) | 2018-02-06 | 2018-02-06 | Integrated frame type lumbar interbody fusion cage with lateral access pins |
Publications (2)
| Publication Number | Publication Date |
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| CN108175545A CN108175545A (en) | 2018-06-19 |
| CN108175545B true CN108175545B (en) | 2024-04-02 |
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| CN201810115172.1A Active CN108175545B (en) | 2018-02-06 | 2018-02-06 | Integrated frame type lumbar interbody fusion cage with lateral access pins |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109820626B (en) * | 2019-03-15 | 2023-11-14 | 博能华医疗器械（北京）有限公司 | Four-way expansion interbody fusion cage |
| CN112022452A (en) * | 2020-08-13 | 2020-12-04 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Combined lateral approach lumbar interbody fusion cage |
| CN113768673B (en) * | 2021-08-31 | 2023-03-28 | 遵义医科大学附属医院 | Distraction-type recyclable synchronous bone grafting kit for intervertebral fusion under percutaneous spinal endoscopy |
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