CN111839830A - Fixable intervertebral fusion cage under self-guiding distraction mirror - Google Patents
Fixable intervertebral fusion cage under self-guiding distraction mirror Download PDFInfo
- Publication number
- CN111839830A CN111839830A CN202010727832.9A CN202010727832A CN111839830A CN 111839830 A CN111839830 A CN 111839830A CN 202010727832 A CN202010727832 A CN 202010727832A CN 111839830 A CN111839830 A CN 111839830A
- Authority
- CN
- China
- Prior art keywords
- distraction
- fusion
- fixable
- driving
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- A61F2/446—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 having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
-
- 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
- A61F2/447—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 substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4601—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
Abstract
The invention relates to a fixable intervertebral fusion cage under a self-guiding distraction mirror, which comprises a driving distraction structure, a fusion body, a combination body and a fixable device, wherein the driving distraction structure is arranged on the drive distraction structure; the driving opening structure comprises a driving screw rod, an opening body and a propelling component; a columnar shaft groove extending along the axial direction is arranged in the center of the fusion body; the driving and expanding structure is arranged in the columnar shaft groove and can slide along the axial direction of the columnar shaft groove; the driving screw is used for driving the spreading body to slide in the columnar shaft groove along the axial direction of the columnar shaft groove through the propelling component; the distraction body is changed from the non-distraction state to the distraction state in the sliding process; when the distraction body is in a distraction state, the intervertebral fusion cage is distracted towards four sides and the volume is enlarged; the combination body is used for connecting the fusion body with the bone grafting sleeve under the mirror; the fixable means includes a fixed blade; one end of the fixed blade is rotatably connected with the combined body through a door shaft system; the other end of the fixed blade is provided with a hollow screw hole, and when the fixed blade is not opened, the driving screw penetrates through the hollow screw hole.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a self-guiding distraction under-mirror fixable interbody fusion cage.
Background
With the change of living habits and working manners of human beings, spine-related diseases have become important diseases affecting the quality and level of life of people. When the disease is serious or the conservative treatment is ineffective, the clinician mostly adopts the mode of intervertebral fusion device bone grafting fusion after discectomy to carry out operative treatment, and obtains more ideal clinical curative effect.
The continuous innovation of minimally invasive spinal surgery, the gradual application of tunneling or endoscopic surgery to spinal surgery-related diseases, and the trend of more and more clinicians and patients to treat the diseases through minimally invasive surgery. However, the minimally invasive surgery technology mostly adopts a mode of reducing the surgery operation space under the assistance of a channel or developing related surgery operations under the assistance of an endoscope, the limited channel diameter of the minimally invasive surgery technology brings less trauma to a patient, and simultaneously limits the application of the traditional intervertebral fusion cage under the surgery mode, so that partial intervertebral spaces of the patient cannot be completely expanded, and better intervertebral height support cannot be provided for the patient. Therefore, the height-adjustable interbody fusion cage capable of being unfolded or expanded and the like is produced, the diameter of the interbody fusion cage is smaller before implantation, the interbody fusion cage can be implanted into the intervertebral space through a narrow space of a channel or an endoscope, and after implantation, the product can be unfolded or expanded in an in-vivo environment through various forms, and finally the aims of effectively restoring the intervertebral space and providing a good supporting effect are fulfilled.
The interbody fusion cage in the prior art needs to be placed under naked eyes or large channels to separate back muscle tissues, so that the real minimally invasive significance is lost, and meanwhile, the operation time is increased; most of the double surfaces are unevenly unfolded, and the bone grafting space is small; the minimally invasive intervertebral foramen under-mirror bone grafting can not be realized in the true sense.
At present, the novel spine minimally invasive technologies such as PELIF and Endo-LIF keep the rear structure of the spine complete, ensure the stability of the spine after operation and realize the excision and decompression of intervertebral discs by using tiny wounds; however, the intervertebral fusion fixation after decompression usually needs to be matched with a posterior percutaneous pedicle screw, and usually needs to additionally open a channel to increase additional posterior trauma, change the body position and the anesthesia mode. The intervertebral fixation and fusion are often independent and can not be completed in one-stop mode.
Disclosure of Invention
The invention aims to provide a self-guiding distraction under-mirror fixable intervertebral fusion cage, and aims to solve the technical problems of reducing muscle tissue separation and trauma, shortening operation time, realizing fixation on the basis of realizing decompression and fusion under a mirror and realizing one-stop completion in the true sense.
The invention aims to solve the defects of the prior art, and provides a self-guiding intervertebral fusion cage which utilizes the distraction force of an intervertebral fusion cage to recover the height and tension of a vertebral segment, expand a bone grafting area, implant a bone under a mirror, relieve the compression in a minimally invasive way, recover the physiological curvature of a spine, promote the osseous fusion and ensure the stability of the spine; more importantly, the invention is the fixable intervertebral fusion device for bone grafting under the self-guiding four-side-spreading mirror which is internationally and initially created and has the function of fixing under the mirror.
In order to achieve the aim, the invention provides a fixable intervertebral fusion cage under a self-guiding distraction mirror, which comprises a driving distraction structure, a fusion body, a combination body and a fixable device, wherein the driving distraction structure is arranged on the fusion body; the driving and opening structure comprises a driving screw rod, an opening body and a propelling component; a columnar shaft groove extending along the axial direction is arranged in the center of the fusion body; the driving and expanding structure is arranged in the columnar shaft groove and can slide along the axial direction of the columnar shaft groove; the driving screw is used for driving the spreading body to slide in the cylindrical shaft groove along the axial direction of the cylindrical shaft groove through the propelling component; the distraction body is changed from the non-distraction state to the distraction state in the sliding process; when the distraction body is in a distraction state, the intervertebral fusion cage is distracted towards four sides and the volume is enlarged; the combination body is used for connecting the fusion body with the bone grafting sleeve under the mirror; the fixable device comprises a fixed blade; one end of the fixed blade is rotatably connected with the combined body through a door shaft system; the other end of the fixed blade is provided with a hollow screw hole, and when the fixed blade is not opened, the driving screw rod penetrates through the hollow screw hole.
The distraction body is a hollow structure body shaped like a Chinese character 'mu' and unfolded on four sides, the center of the distraction body is a distraction body main shaft, and a plurality of distraction leaves are arranged on the periphery of the distraction body main shaft.
A plurality of oblique fusion body sliding grooves are formed in the inner side of the side circumferential surface of the columnar shaft groove, the fusion body sliding grooves correspond to the plurality of spreading leaves in a one-to-one mode, and when the spreading bodies are not spread, the spreading leaves are inserted into the fusion body sliding grooves; when the strutting body is in a strutting state, the strutting leaf is separated from the fusion body chute.
The included angle between the fusion body sliding groove and the columnar shaft groove is 30 degrees.
The tail ends of the plurality of the spreading leaves are provided with retrograde buckles; the opening leaves are vertically arranged in pairs, and form 90 degrees with each other for combining with the fusion body sliding groove.
The driving screw is of an external thread columnar structure, a hollow inner hexagonal screw is arranged in the driving screw, and the hollow inner hexagonal screw is used for being matched with a hollow screwdriver.
The center of the fusion body is provided with a self-guiding channel extending along the axial direction and used for a guide wire to pass through.
The fusion body comprises a head end and a tail end, the head end is designed in a conical shape, the tail end is designed in a three-dimensional section, and the self-guiding channel penetrates from the head end to the tail end.
The center of the boundary of the combined body is provided with a pressure groove, and the center of the combined body is provided with a circular groove which can accommodate a driving screw rod; the intervertebral fusion device is connected with the under-mirror bone grafting sleeve through a pressing groove of the combination body; the fixed blade is respectively matched with the posterior horn sclerotin of the upper and lower centrum through the hollow screw hole.
The propelling component comprises a front hollow propelling component and a rear hollow propelling component, and one end of the rear hollow propelling component is fixedly connected with the end part of the driving screw rod; the other end of the rear hollow propelling component is connected with one end of the main shaft of the distraction body; the other end of the main shaft of the distraction body is connected with one end of the front hollow propulsion assembly; when the driving screw drives the rear hollow propelling component to move from the tail end to the head end of the fusion body, the rear hollow propelling component drives the main shaft of the spreading body to move towards the tail end of the fusion body, and the main shaft of the spreading body slides relative to the front hollow propelling component.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that: the invention provides a matched interbody fusion cage for future minimally invasive interbody fusion surgery, can enter an interbody preset position along a guide wire, does not need to be operated under flesh eyes or enlarge a channel, reduces muscle tissue separation, reduces trauma and shortens surgery time. The fixable intervertebral fusion cage under the self-guiding distraction mirror can be distracted from four sides, so that the bone grafting space is enlarged, and the fusion rate is increased. The invention is different from the prior intervertebral fusion cage that the bone grafting is finished before the placement, and after the fusion cage is led in, the bone grafting operation can be carried out under the direct vision state under the mirror, so that the accurate bone grafting can be carried out, the bone grafting amount can be controlled, the distribution of bone grafting particles can also be controlled, and the secondary compression to the nerve can be reduced. More importantly, the invention creates a fixable function internationally, realizes fixation on the basis of realizing decompression and fusion under a mirror, and realizes one-stop completion in a real sense.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic overall structure diagram of the fixable intervertebral fusion cage under the self-guiding distraction mirror.
Fig. 2 is a cross-sectional view of the intervertebral cage of the present invention in an un-rotated, un-distracted, un-opened state.
Fig. 3 is a cross-sectional view of the intervertebral cage of the invention in a rotated, expanded, unopened state.
FIG. 4 is a schematic view of the intervertebral cage of the present invention in a rotated, expanded, and fixed state
Fig. 5 is an elevation view of the head end of the intervertebral cage of the invention.
Fig. 6 is an elevation view of the trailing end of an intervertebral cage of the invention with the anchorable device unopened.
Fig. 7 is an elevation view of the trailing end of an intervertebral cage of the invention with the anchor device open.
Fig. 8 is a cross-sectional profile view of an intervertebral cage according to the invention.
Fig. 9 is a schematic view of a fusion of the intervertebral cage of the present invention.
Fig. 10 is a schematic view of a distractor of the intervertebral cage of the present invention.
Fig. 11 is a side view of a fusion of the intersomatic cage of the present invention.
Fig. 12 is a cross-sectional view of a distractor of the intervertebral cage of the invention.
Fig. 13 is an exploded view of an intervertebral cage according to the invention.
Fig. 14 is a schematic view showing a combined body of the intervertebral cage according to the present invention.
Figure 15 is a schematic view of an embodiment of an intervertebral cage according to the invention.
FIG. 16 is an illustration of an embodiment of the intervertebral cage of the invention
Figure 17 is a fixable illustration of an intervertebral cage according to the invention.
Detailed Description
The present invention is described in more detail below to facilitate an understanding of the present invention.
As shown in fig. 1 to 17, the fixable intervertebral fusion device under self-guided distraction mirror of the present invention includes a driving distraction structure 1, a fusion body 2, a combined body 3 and a fixable device 4; the driving and opening structure 1 comprises a driving screw rod 5, an opening body 6 and a propelling component 7; the center of the fusion body 2 is provided with a columnar shaft groove 17 extending along the axial direction; the driving and expanding structure 1 is arranged in the columnar shaft groove 17 and can slide along the axial direction of the columnar shaft groove 17; the driving screw 5 is used for driving the spreading body 6 to slide in the cylindrical shaft groove 17 along the axial direction of the cylindrical shaft groove 17 through the propelling component 7; the distraction body 6 is changed from the non-distraction state to the distraction state in the sliding process; the distraction body 6 causes the intervertebral fusion cage to be distracted towards four sides and the volume is enlarged when in the distraction state; the combination body 3 is used for connecting the fusion body 2 with the under-mirror bone grafting sleeve 23; the fixable device 4 comprises fixed blades 21; one end of the fixed blade 21 is rotatably connected with the combined body 3 through a door shaft system 28; the other end of the fixed blade 21 is provided with a hollow screw hole 22, and when the fixed blade 21 is not opened, the driving screw 5 passes through the hollow screw hole 22.
The intervertebral fusion device in the prior art has no fixable function. The fixable in the present invention means: the invention is designed aiming at the spine minimally invasive technology, realizes one-stop completion of decompression, fusion and fixation under a microscope, and introduces a fixable concept.
The distraction body 6 is a hollow structure body shaped like a Chinese character 'mu' and unfolded in four sides, the center of the distraction body is a distraction body main shaft 9, and a plurality of distraction leaves 10 are arranged on the periphery of the distraction body main shaft.
A plurality of oblique fusion body sliding grooves 18 are formed in the inner side of the side peripheral surface of the columnar shaft groove 17, the positions of the fusion body sliding grooves 18 correspond to the positions of the plurality of distraction blades 10 one by one, and when the distraction body 6 is in an undestrutted state, the distraction blades 10 are inserted into the fusion body sliding grooves 18; when the spreader 6 is in the spread state, the spreader leaves 10 are separated from the fusion runner 18.
The included angle between the fusion sliding groove 18 and the columnar shaft groove 17 is 30 degrees.
The tail ends of the plurality of the spreading blades 10 are provided with retrograde buckles 11; the expansion leaves 10 are arranged vertically in pairs, and form an angle of 90 degrees with each other, and are used for combining with the fusion body sliding groove 18.
The driving screw 5 is of an external thread columnar structure, a hollow inner hexagonal screw 8 is arranged in the driving screw, and the hollow inner hexagonal screw 8 is used for being matched with a hollow screwdriver 26.
The center of the fusion body 2 is provided with a self-guiding channel 15 extending along the axial direction and used for a guide wire 24 to pass through.
The fusion 2 is divided into four pieces, namely an upper fusion, a lower fusion, a left fusion and a right fusion. The four fusion bodies are riveted with the spreader body into a whole through the columnar shaft groove 17 and the fusion body sliding groove 18, and the four fusion bodies are not connected with each other.
The fusion body comprises a head end 14 and a tail end 16, wherein the head end 14 is designed in a conical shape, the tail end is designed in a three-dimensional section, and the self-guiding channel 15 penetrates from the head end 14 to the tail end 16.
As shown in fig. 6 and 14, a pressing groove 19 is formed in the center of the boundary of the combined body 3, a circular groove 20 is formed in the center of the combined body 3, and the circular groove 20 can accommodate the driving screw 5; the interbody fusion cage is connected with the bone grafting sleeve 23 under the mirror through a pressure groove 19 of the combination body; the fixed blade is respectively matched with the posterior horn sclerotin of the upper and lower centrum through the hollow screw hole 22.
The propelling component 7 comprises a front hollow propelling component 12 and a rear hollow propelling component 13, and one end of the rear hollow propelling component 13 is fixedly connected with the end part of the driving screw rod 5; the other end of the rear hollow propelling component 13 is connected with one end of the main shaft 9 of the distraction body; the other end of the main shaft 9 of the distraction body is connected with one end of a front hollow propulsion assembly 12; when the driving screw drives the rear hollow propulsion assembly 13 to move from the tail end to the head end of the fusion body 2, the rear hollow propulsion assembly 13 drives the spreading body main shaft 9 to move towards the tail end of the fusion body 2, and the spreading body main shaft 9 slides relative to the front hollow propulsion assembly 12.
The use method of the fixable intervertebral fusion cage under the self-guiding distraction mirror comprises the following steps:
when the intervertebral treatment is finished and the intervertebral fusion device is ready to be placed, the guide wire 24 is placed under the mirror to reach a preset position, the intervertebral fusion device is connected with the bone grafting sleeve 23 under the mirror through the pressing groove 19 of the combination 3, the intervertebral fusion device reaches the preset position along the guide wire 24 along the self-guiding channel 15, the hollow screwdriver 26 is embedded with the hollow hexagon socket screw 8 of the driving screw 5, the intervertebral fusion device is rotated clockwise to be expanded to the required height, in the process, the driving screw 5 rotates forwards, the propelling component 7 slides forwards along the columnar shaft groove 17, the expanding body main shaft 9 and the expanding leaf 10 thereof respectively move along the columnar shaft groove 17 and the oblique fusion body sliding groove 18, at the moment, the fusion body 2 is separated from the expanding body 6, the four sides of the intervertebral fusion device are expanded, the hollow screwdriver 26 is withdrawn, the bone grafting sleeve is implanted under the mirror, and the minimally invasive and precise bone grafting is carried out according to.
When the fixable intervertebral fusion cage under the self-guiding distraction mirror is distracted from four sides and bone grafting under the mirror is completed, the fixable device 4 and the combination body 3 are connected by a door shaft system (28) and can be automatically opened, the left and right fixed blades 21 are opened towards two sides, the hollow screw hole 22 is respectively matched with the back angle bone of the upper and lower vertebral bodies, and the universal screwdriver 25 is screwed into the hollow screw 27 under the mirror/channel to complete fixation.
The fixable intervertebral fusion device under the self-guiding distraction mirror has the following advantages:
1. the invention is designed into a hollow structure, is provided with a guide channel and can be guided to enter the intervertebral space through a guide wire.
2. The invention adopts gliding push type four-side opening, which increases the bone grafting space.
3. The back end of the invention is provided with a thread, and the invention can be screwed into the sleeve, thereby realizing accurate bone grafting in the intervertebral fusion cage under the direct vision state, controlling the bone grafting amount, also mastering the distribution of the bone grafting and avoiding the secondary oppression of nerves.
4. The invention is internationally initiated with a fixing device, and the blades can be fixed at the rear angle of the adjacent vertebral bodies after being opened, thereby realizing one-stop completion of decompression, fixation and fusion.
The foregoing describes preferred embodiments of the present invention, but is not intended to limit the invention thereto. Modifications and variations of the embodiments disclosed herein may be made by those skilled in the art without departing from the scope and spirit of the invention.
Claims (10)
1. The self-guiding distraction under-mirror fixable interbody fusion cage is characterized by comprising a driving distraction structure, a fusion body, a combination body and a fixable device; the driving and opening structure comprises a driving screw rod, an opening body and a propelling component; a columnar shaft groove extending along the axial direction is arranged in the center of the fusion body; the driving and expanding structure is arranged in the columnar shaft groove and can slide along the axial direction of the columnar shaft groove; the driving screw is used for driving the spreading body to slide in the cylindrical shaft groove along the axial direction of the cylindrical shaft groove through the propelling component; the distraction body is changed from the non-distraction state to the distraction state in the sliding process; when the distraction body is in a distraction state, the intervertebral fusion cage is distracted towards four sides and the volume is enlarged; the combination body is used for connecting the fusion body with the bone grafting sleeve under the mirror; the fixable device comprises a fixed blade; one end of the fixed blade is rotatably connected with the combined body through a door shaft system; the other end of the fixed blade is provided with a hollow screw hole, and when the fixed blade is not opened, the driving screw rod penetrates through the hollow screw hole.
2. The fixable interbody fusion cage under the self-guiding distracting mirror of claim 1, wherein the distracting body is a hollow "one" -shaped structure body which is unfolded from four sides, the center of the distracting body is a main shaft of the distracting body, and a plurality of distracting leaves are arranged around the main shaft of the distracting body.
3. The fixable intervertebral fusion device under the self-guiding distractor according to claim 2, wherein a plurality of oblique fusion body sliding grooves are provided inside the side circumference of the cylindrical shaft groove, the fusion body sliding grooves correspond to a plurality of distraction leaves one by one, and when the distraction body is in the non-distraction state, the distraction leaves are inserted into the fusion body sliding grooves; when the strutting body is in a strutting state, the strutting leaf is separated from the fusion body chute.
4. The self-guided distractor understandably interbody fusion cage of claim 3, wherein said fusion body slot is angled 30 ° from said cylindrical axial slot.
5. The self-guided distracting mirror fixable interbody fusion cage of claim 3, wherein the ends of the plurality of distracting leaves are provided with retrograde buckles; the opening leaves are vertically arranged in pairs, and form 90 degrees with each other for combining with the fusion body sliding groove.
6. The self-guided distractor under fixable intervertebral fusion cage of claim 1, wherein the driving screw is of an externally threaded cylindrical structure, and a hollow hexagonal socket is provided in the driving screw, said hollow hexagonal socket being adapted to mate with a cannulated screwdriver.
7. The self-guided distracting sub-scopically fixable intervertebral cage of claim 1, wherein the centre of said fusion body is provided with an axially extending self-guiding channel for the passage of a guide wire.
8. The self-guided distracting under-mirror fixable interbody fusion cage of claim 7, wherein said fusion body comprises a head end and a tail end, said head end is of a tapered design, said tail end is of a solid cross-sectional design, and said self-guided channel extends from said head end to said tail end.
9. The fixable intervertebral fusion device under the self-guiding distraction mirror as recited in claim 1, wherein a pressing groove is formed in the center of the boundary of the combination body, and a circular groove is formed in the center of the combination body and used for accommodating a driving screw; the intervertebral fusion device is connected with the under-mirror bone grafting sleeve through a pressing groove of the combination body; the fixed blade is respectively matched with the posterior horn sclerotin of the upper and lower centrum through the hollow screw hole.
10. The self-guided expandable sub-endoscopic fixable interbody fusion cage of claim 2, wherein the pushing assembly comprises a front hollow pushing assembly and a rear hollow pushing assembly, one end of the rear hollow pushing assembly being fixedly connected to an end of the drive screw; the other end of the rear hollow propelling component is connected with one end of the main shaft of the distraction body; the other end of the main shaft of the distraction body is connected with one end of the front hollow propulsion assembly; when the driving screw drives the rear hollow propelling component to move from the tail end to the head end of the fusion body, the rear hollow propelling component drives the main shaft of the spreading body to move towards the tail end of the fusion body, and the main shaft of the spreading body slides relative to the front hollow propelling component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010727832.9A CN111839830B (en) | 2020-07-23 | 2020-07-23 | Fixable intervertebral fusion cage under self-guiding distraction mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010727832.9A CN111839830B (en) | 2020-07-23 | 2020-07-23 | Fixable intervertebral fusion cage under self-guiding distraction mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111839830A true CN111839830A (en) | 2020-10-30 |
| CN111839830B CN111839830B (en) | 2021-09-14 |
Family
ID=72950225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010727832.9A Active CN111839830B (en) | 2020-07-23 | 2020-07-23 | Fixable intervertebral fusion cage under self-guiding distraction mirror |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111839830B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114376695A (en) * | 2022-01-17 | 2022-04-22 | 于小钧 | Centrum positioner that punches |
| CN114432013A (en) * | 2022-01-27 | 2022-05-06 | 江苏力克医疗科技有限公司 | Extension formula fuses ware |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100292796A1 (en) * | 2009-05-14 | 2010-11-18 | Stout Medical Group, L.P. | Expandable support device and method of use |
| US20140200670A1 (en) * | 2013-01-16 | 2014-07-17 | Spinefrontier Inc | System and method for a spinal stabilization implant assembly |
| US20140243981A1 (en) * | 2013-02-25 | 2014-08-28 | Globus Medical, Inc. | Expandable Intervertebral Implant |
| US20150173917A1 (en) * | 2013-12-19 | 2015-06-25 | Amendia, Inc. | Expandable spinal implant |
| US20180303629A1 (en) * | 2017-04-20 | 2018-10-25 | Life Spine, Inc. | Lateral Spine Plate with Collapsible Vertebral Attachment Arms |
| CN109199560A (en) * | 2018-11-13 | 2019-01-15 | 廖若辰 | A kind of bracket strutting sustainable bone grafting |
| CN110755181A (en) * | 2019-11-15 | 2020-02-07 | 邹丽敏 | Intervertebral fusion device |
-
2020
- 2020-07-23 CN CN202010727832.9A patent/CN111839830B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100292796A1 (en) * | 2009-05-14 | 2010-11-18 | Stout Medical Group, L.P. | Expandable support device and method of use |
| US20140200670A1 (en) * | 2013-01-16 | 2014-07-17 | Spinefrontier Inc | System and method for a spinal stabilization implant assembly |
| US20140243981A1 (en) * | 2013-02-25 | 2014-08-28 | Globus Medical, Inc. | Expandable Intervertebral Implant |
| US20150173917A1 (en) * | 2013-12-19 | 2015-06-25 | Amendia, Inc. | Expandable spinal implant |
| US20180303629A1 (en) * | 2017-04-20 | 2018-10-25 | Life Spine, Inc. | Lateral Spine Plate with Collapsible Vertebral Attachment Arms |
| CN109199560A (en) * | 2018-11-13 | 2019-01-15 | 廖若辰 | A kind of bracket strutting sustainable bone grafting |
| CN110755181A (en) * | 2019-11-15 | 2020-02-07 | 邹丽敏 | Intervertebral fusion device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114376695A (en) * | 2022-01-17 | 2022-04-22 | 于小钧 | Centrum positioner that punches |
| CN114376695B (en) * | 2022-01-17 | 2024-01-12 | 西安市红会医院 | Centrum positioner that punches |
| CN114432013A (en) * | 2022-01-27 | 2022-05-06 | 江苏力克医疗科技有限公司 | Extension formula fuses ware |
| CN114432013B (en) * | 2022-01-27 | 2024-02-23 | 江苏力克医疗科技有限公司 | Expansion type fusion device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111839830B (en) | 2021-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11938036B2 (en) | Expandable interbody device | |
| US9579131B1 (en) | Systems and methods for performing spine surgery | |
| US11896493B2 (en) | Expandable intervertebral spacer | |
| US10709481B2 (en) | Systems and methods for posterior dynamic stabilization of the spine | |
| JP6475762B2 (en) | Multiple spinal surgical pathway systems and methods | |
| US10322007B2 (en) | Expandable spinal fusion cage | |
| US8057481B2 (en) | System and method for providing surgical access to a spine | |
| US10092330B2 (en) | Spinous process fixation devices and methods of use | |
| JP5356509B2 (en) | Intervertebral implants and placement instruments | |
| US20220110765A1 (en) | Devices and methods for spinal implantation | |
| CN109758272B (en) | Distracting fusion cage with adjustable middle bone grafting height | |
| US11517452B2 (en) | Surgical instrument and methods of use thereof | |
| US20050070911A1 (en) | Apparatus and methods for reducing compression bone fractures using high strength ribbed members | |
| CN111839830B (en) | Fixable intervertebral fusion cage under self-guiding distraction mirror | |
| CN110013366B (en) | Intervertebral fusion device with bone grafting height adjustable | |
| CN108078656B (en) | Expansion type interbody fusion cage applied to minimally invasive spine surgery | |
| CN111759436B (en) | Self-guiding four-side expandable under-mirror bone grafting interbody fusion cage | |
| US20130289725A1 (en) | System and Device for Providing Nutrition to Intervertebral Tissue and Method of Use | |
| CN114424989A (en) | Fixable intervertebral fusion device and treatment system using same | |
| CN114392017A (en) | Inflatable and expandable fixable intervertebral fusion device and treatment system using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |