CN113143428B - Intervertebral expanding and lifting repositor - Google Patents
Intervertebral expanding and lifting repositor Download PDFInfo
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- CN113143428B CN113143428B CN202110217055.8A CN202110217055A CN113143428B CN 113143428 B CN113143428 B CN 113143428B CN 202110217055 A CN202110217055 A CN 202110217055A CN 113143428 B CN113143428 B CN 113143428B
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- repositor
- intervertebral
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
- A61B17/7076—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
- A61B17/7077—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation for moving bone anchors attached to vertebrae, thereby displacing the vertebrae
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses an intervertebral distraction lifting restorer which comprises a body, wherein a driving gear is rotatably arranged at the upper end of the body, a driven gear is rotatably arranged at the lower end of the body, a crawler is sleeved on the driving gear and the driven gear, barbs are arranged on the outer surface of the crawler, two straight sections of the crawler between the driving gear and the driven gear are respectively positioned at two opposite sides of the body, and the barbs on the straight sections of the crawler protrude out of the body for arrangement. Its purpose is in order to provide an intervertebral struts and carries and draw restorer, and it can improve the efficiency that the centrum resets, can avoid the not hard up risk of pedicle of vertebral arch screw simultaneously.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an intervertebral expanding and lifting restorer for treating vertebral body slippage.
Background
In the operation for treating the spondylolisthesis, the traditional technology is that after the intervertebral space is expanded, the spondylolisthesis vertebral pedicle screws are lifted and pulled to reset the spondylolisthesis vertebral pedicle screws. For patients with severe vertebral body slippage and difficult vertebral body reduction, the process easily causes pedicle screw loosening and even nail pulling, and particularly for patients with osteoporosis, internal fixation failure is caused, the fixed segment may need to be passively prolonged, and larger trauma and economic loss are caused.
Disclosure of Invention
The invention aims to provide an intervertebral distraction lifting restorer which can improve vertebral body restoration efficiency and avoid the risk of loosening pedicle screws.
The intervertebral distraction lifting restorer comprises a body, wherein a driving gear is rotatably arranged at the upper end of the body, a driven gear is rotatably arranged at the lower end of the body, crawlers are sleeved on the driving gear and the driven gear, barbs are arranged on the outer surfaces of the crawlers, two straight sections of the crawlers between the driving gear and the driven gear are respectively positioned on two opposite sides of the body, and the barbs on the straight sections of the crawlers protrude out of the body.
The intervertebral distraction lifting repositor is characterized in that the body is of a strip-shaped plate structure, two relatively arranged wide side faces of the body are both first side faces, two relatively arranged narrow side faces of the body are both second side faces, a supporting frame positioned at the upper end of the body is arranged on the first side faces, the driving gear is rotatably arranged on the supporting frame, the axis of the driving gear is perpendicular to the first side faces, through holes penetrating the two second side faces are formed in the lower end of the body, the driven gear is rotatably arranged in the through holes, the axis of the driven gear is perpendicular to the first side faces, two straight sections of a crawler belt between the driving gear and the driven gear are respectively positioned on the two second side faces from top to bottom, and barbs on the straight sections of the crawler belt protrude out of the second side faces.
The intervertebral distraction lifting restorer comprises a support frame and a main body, wherein the support frame comprises two support plates which are oppositely arranged, the two support plates are respectively fixed on two first side surfaces of the main body, a driving shaft is rotatably arranged between the two support plates, and the driving gear is fixedly sleeved on the driving shaft.
The intervertebral distraction lifting restorer of the invention is characterized in that two ends of the driving shaft penetrate through the adjacent supporting plates and are respectively and fixedly connected with a hand wheel.
The intervertebral distraction lifting restorer is characterized in that a driven shaft is fixedly arranged in the through hole, and the driven gear is rotatably sleeved on the driven shaft.
The intervertebral distraction lifting restorer is characterized in that a driven shaft is rotationally arranged in the through hole, and the driven gear is fixedly sleeved on the driven shaft.
The intervertebral distraction lifting restorer is characterized in that two second side surfaces of the body are respectively provided with a sliding chute for accommodating the straight section of each crawler belt, and the sliding chutes are arranged along the up-down direction.
The invention relates to an intervertebral distraction lifting restorer, wherein the lower end of a body is provided with a pointed structure.
The invention relates to an intervertebral distraction lifting restorer, wherein a handle is fixedly connected to a support frame and is positioned above the support frame.
The intervertebral distraction lifting repositor comprises a support frame, a handle, a support plate and a handle, wherein the support frame is fixedly connected with the handle through an inverted U-shaped frame, two bottom ends of the inverted U-shaped frame are fixedly connected to the two support plates respectively, and the handle is fixedly connected to the top surface of the inverted U-shaped frame.
When the intervertebral distraction lifting restorer is used, the lower end of the body is inserted between the slippage centrum and the normal centrum, and the two straight sections of the crawler belts are respectively and tightly attached to the slippage centrum and the normal centrum. And rotating the driving gear to enable the straight section of the track with the barbs arranged obliquely upwards to move upwards, and meanwhile, enabling the straight section of the track with the barbs arranged obliquely downwards to move downwards. Then, can upwards move with the straight section of track that barb slope upwards arranged pastes tight slippage centrum (or normal centrum), and can downwards move with the straight section of track that barb slope downwards arranged pastes tight normal centrum (or slippage centrum), makes the position of slippage centrum and normal centrum unanimous to this reaches the purpose that makes the slippage centrum reset, and easy and simple to handle is high-efficient, and can avoid the not hard up risk of pedicle of vertebral arch screw.
The invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of a first embodiment of the intervertebral distraction lifting reductor of the present invention;
FIG. 2 is a right side view of a first embodiment of the intervertebral distraction lifting repositor of the present invention;
FIG. 3 is a front view of the body and the support bracket according to one embodiment of the present invention;
FIG. 4 is a right side view of the body and the stand according to one embodiment of the present invention;
FIG. 5 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3;
FIG. 6 is a schematic view of the drive gear, driven gear and track of FIG. 5;
FIG. 7 is a front view of an embodiment of the intervertebral distraction lifting repositor of the present invention with the track removed;
FIG. 8 is a diagram illustrating a relative position between a drive gear and a handwheel according to a first embodiment of the present invention;
FIG. 9 is a view showing the first embodiment of the intervertebral distraction lifting reductor of the present invention in use;
fig. 10 is a front view of a second embodiment of the intervertebral distraction lifting reductor of the invention.
Detailed Description
Example one
As shown in fig. 1 and fig. 2-9, the intervertebral distraction lifting repositor of the invention comprises a body 7, a driving gear 14 is rotatably arranged at the upper end of the body 7, a driven gear 15 is rotatably arranged at the lower end of the body 7, a crawler 5 is sleeved on the driving gear 14 and the driven gear 15, barbs 6 are arranged on the outer surface of the crawler 5, two straight sections of the crawler between the driving gear 14 and the driven gear 15 are respectively positioned at two opposite sides of the body 7, and the barbs 6 on the straight sections of the crawler protrude out of the body 7. The arrangement of the barbs 6 protruding out of the body 7 is such that the barbs 6 can hook onto the vertebral bodies 17, 18.
As shown in fig. 1, and in conjunction with fig. 2 and 6, the inner surface of the track 5 is fitted over the drive gear 14 and the driven gear 15, and the inner surface of the track 5 is provided with splines to allow the track 5 to engage the teeth of the drive gear 14 and the driven gear 15 during movement. Whole track 5 includes two straight sections and two segmental arcs, and two segmental arcs are located the both ends of straight section respectively, and two segmental arcs overlap respectively on driving gear 14 and driven gear 15. As the drive gear 14 rotates, it can drive the track 5 to rotate about the drive gear 14 and the driven gear 15. The barbs 6 in the invention refer to spikes which are obliquely arranged towards the moving direction of the track 5 and can hook the cone bodies 17 and 18 during the moving process of the track 5, so that the cone bodies 17 and 18 can move along with the track 5, as shown in fig. 9, the driving gear 14 rotates clockwise to drive the track 5, the straight section of the track on the left side moves upwards, and the barbs 6 on the straight section move upwards obliquely (i.e. obliquely arranged towards the moving direction of the track 5); the straight section of the track on the right moves downwards and the barbs 6 thereon are arranged obliquely downwards (i.e. obliquely towards the direction of movement of the track 5). It can also be said that as the track 5 moves circumferentially, the straight section of the track on the left moves to the right with the barbs 6 thereon rotating through 180 degrees, i.e. changing from an upwardly inclined arrangement to a downwardly inclined arrangement. Regardless of whether the barbs 6 are obliquely arranged upward or downward, the barbs 6 are always obliquely arranged toward the moving direction of the crawler 5 during the movement of the crawler 5.
As shown in fig. 1 and fig. 2 to 7, the intervertebral distraction lifting repositor of the invention is characterized in that the body 7 is of a strip-shaped plate structure, the cross section of the body 7 is rectangular, the two relatively-arranged wider side surfaces of the body 7 are both first side surfaces 12, the two relatively-arranged narrower side surfaces of the body 7 are both second side surfaces 8, a support frame 2 positioned at the upper end of the body 7 is arranged on the first side surfaces 12, the support frame 2 is rotatably provided with the driving gear 14, and the axis of the driving gear 14 is perpendicular to the first side surfaces 12. The lower end of the body 7 is provided with a through hole 10 penetrating through the two second side surfaces 8, the driven gear 15 is rotatably arranged in the through hole 10, and the axis of the driven gear 15 is perpendicular to the first side surface 12. Two straight sections of the track between the driving gear 14 and the driven gear 15 are respectively positioned on the two second side surfaces 8 from top to bottom, and barbs 6 on the straight sections of the track are arranged to protrude out of the second side surfaces 8. As shown in FIG. 9, during movement of the track 5, the left track straight section moves up the left second side 8 and the right track straight section moves down the right second side 8.
As shown in fig. 1 and fig. 3-7, the intervertebral distraction lifting repositor of the invention comprises a support frame 2 comprising two support plates 3 arranged oppositely, wherein the two support plates 3 are respectively fixed on two first side surfaces 12 of a main body 7, a driving shaft 4 is rotatably installed between the two support plates 3, and the driving gear 14 is fixedly sleeved on the driving shaft 4. Two ends of the driving shaft 4 penetrate through the adjacent supporting plates 3 and are fixedly connected with a hand wheel 1 respectively. The specific mode of rotatably mounting the driving shaft 4 between the two support plates 3 is the prior art, the aperture of the shaft hole 11 for mounting the driving shaft 4 on the support plates 3 can be slightly larger than the diameter of the driving shaft 4, even if the driving shaft 4 is in clearance fit with the support plates 3, so that the driving shaft 4 can rotate relative to the support plates 3; of course, it is also possible to have the axle shaft 4 mounted on the support plate 3 via a rotary element (e.g. a bearing) so that the axle shaft 4 can also rotate relative to the support plate 3.
As shown in fig. 8, since the hand wheel 1 and the driving gear 14 are fixed to the driving shaft 4, the operator can rotate the driving gear 14 by rotating the hand wheel 1.
As shown in fig. 3, and as shown in fig. 5-7, the intervertebral distraction lifting repositor of the invention comprises a driven shaft 16 fixed in the through hole 10, and the driven gear 15 rotatably sleeved on the driven shaft 16. The specific manner of rotatably mounting the driven gear 15 on the driven shaft 16 is the prior art, which can either make the driven gear 15 and the driven shaft 16 in a clearance fit manner (i.e. the bore diameter of the shaft hole of the driven gear 15 is slightly larger than the diameter of the driven shaft 16), or make the driven gear 15 be mounted on the driven shaft 16 through a rotating member (such as a bearing), so that the driven gear 15 can rotate relative to the driven shaft 16 to be able to cooperate with the moving crawler 5.
Of course, the following mounting method can be adopted for the driven gear 15: a driven shaft 16 is rotatably arranged in the through hole 10, and the driven gear 15 is fixedly sleeved on the driven shaft 16. Two opposite hole walls in the through hole 10 are respectively provided with a shaft hole 13 for mounting a driven shaft 16, and the driven shaft 16 is in clearance fit with the shaft hole 13 (namely, the diameter of the shaft hole 13 is larger than that of the driven shaft 16), or the driven shaft 16 is mounted in the shaft hole 13 through a rotating part. In this way, the driven gear 15 and the driven shaft 16 can rotate with respect to the body 7 so as to cooperate with the moving track 5.
As shown in fig. 3 and fig. 5-7, the intervertebral distraction lifting repositor of the invention is provided with sliding grooves 9 for accommodating the straight sections of the respective caterpillar tracks on the two second side surfaces 8 of the body 7, wherein the sliding grooves 9 are arranged along the up-down direction. In the moving process of the crawler 5, the sliding grooves 9 can guide the crawler 5 and play a role in preventing the crawler from falling off.
As shown in figure 1, and also shown in figures 2-7, the intervertebral expanding and lifting restorer of the present invention has a pointed structure at the lower end of the body 7, so that the lower end of the body 7 can be inserted into the intervertebral space more easily.
When the intervertebral expanding and lifting restorer is used, the lower end of the body 7 is inserted between the slippage centrum 17 and the normal centrum 18, when the restorer is inserted, the shape of the body 7 corresponds to the intervertebral space, namely when the restorer is just inserted, two wider first side surfaces 12 of the body 7 are respectively propped against the slippage centrum 17 and the normal centrum 18, then the body 7 is rotated by 90 degrees to expand the slippage centrum 17 and the normal centrum 18, as shown in figure 9, two narrower second side surfaces 8 of the body 7 are respectively clung to the slippage centrum 17 and the normal centrum 18, and the straight sections of the crawler belts on the two second side surfaces 8 are respectively clung to the slippage centrum 17 and the normal centrum 18, as barbs 6 are arranged on the outer surface of the crawler belt 5, and the barbs 6 on the straight section of the crawler belt on the left side are obliquely arranged upwards, and the barbs 6 on the straight section of the crawler belt on the right side are obliquely arranged downwards. When the straight section of the track clings to the slipping vertebral body 17 and the normal vertebral body 18, the barbs 6 on the straight section of the track are hooked with the vertebral bodies 17 and 18, so that the vertebral bodies 17 and 18 can move along with the track 5. Rotating the drive gear 14 in a clockwise direction moves the left track straight section upward while the right track straight section moves downward. Therefore, the slippage centrum 17 tightly attached to the straight section of the left-side crawler belt moves upwards, and the normal centrum 18 tightly attached to the straight section of the right-side crawler belt moves downwards, so that the positions of the slippage centrum 17 and the normal centrum 18 are consistent, the purpose of resetting the slippage centrum 17 is achieved, the operation is simple, convenient and efficient, and the risk of loosening the pedicle screw can be avoided. After the spondylolisthesis 17 is reset, the body 7 is rotated by 90 degrees, so that the two narrower second side surfaces 8 of the body 7 are separated from the vertebral bodies 17 and 18, and the two wider first side surfaces 12 are pressed against the vertebral bodies 17 and 18, and then the body 7 is drawn out from the intervertebral space.
The slippage centrum 17 that says above is located the below of normal centrum 18, when slippage centrum 17 is located the top of normal centrum 18, the flat straight section of track that makes barb 6 slope arrange downwards pastes tightly with slippage centrum 17 mutually, the flat straight section of track that makes barb 6 slope arrange upwards pastes tightly with normal centrum 18 mutually, later rotation driving gear 14, the flat straight section of track that makes barb 6 slope arrange downwards drives slippage centrum 17 downstream, the flat straight section of track that makes barb 6 slope arrange upwards simultaneously will drive normal centrum 18 upward movement, until the position that makes slippage centrum 17 and normal centrum 18 is unanimous mutually, thereby accomplish the reduction of slippage centrum 17.
Example two
As shown in fig. 10, the present embodiment is different from the first embodiment in that: the support frame 2 is fixedly connected with a handle 19, and the handle 19 is positioned above the support frame 2. The support frame 2 is fixedly connected with the handle 19 through an inverted U-shaped frame 20, two bottom ends of the inverted U-shaped frame 20 are respectively and fixedly connected to the two support plates 3, and the handle 19 is fixedly connected to the top surface of the inverted U-shaped frame 20.
As mentioned in the first embodiment, the present invention requires to rotate the body 7, and the handle 19 is provided to facilitate the operator to hold the handle 19 and rotate the body 7.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (9)
1. The utility model provides an intervertebral struts and carries and draw restorer which characterized in that: comprises a body, the upper end of the body is rotatably provided with a driving gear, the lower end of the body is rotatably provided with a driven gear, the driving gear and the driven gear are sleeved with a crawler belt, barbs are arranged on the outer surface of the crawler belt, two crawler belt straight sections between the driving gear and the driven gear are respectively positioned at two opposite sides of the body, the barbs on the crawler belt straight sections are arranged in a protruding way out of the body,
the body is bar platelike structure, the side of two mutual disposition's of body broad is first side, two mutual disposition's of body narrower side is the second side, be equipped with the support frame that is located the body upper end on the first side, it is equipped with to rotate on the support frame the driving gear, the axis perpendicular to first side of driving gear, the lower extreme of body is equipped with the through-hole that pierces through two second sides, the through-hole internal rotation is equipped with driven gear, driven gear's axis perpendicular to first side, two track straight sections between driving gear and the driven gear are located two second sides from the top down respectively, the outstanding second side of barb on the straight section of track is arranged.
2. The intervertebral distracting repositor of claim 1, wherein: the support frame includes two opposite arrangement's backup pad, two on the backup pad is fixed in two first sides of body respectively, two rotate between the backup pad and install the driving shaft, the fixed cover is equipped with on the driving shaft the driving gear.
3. The intervertebral distracting lifting repositor of claim 2, wherein: two ends of the driving shaft penetrate through the adjacent supporting plates and are fixedly connected with a hand wheel respectively.
4. The intervertebral distracting repositor of claim 3, wherein: the through-hole internal fixation is equipped with the driven shaft, it is equipped with to rotate the cover on the driven shaft driven gear.
5. The intervertebral distracting lifting repositor of claim 3, wherein: a driven shaft is arranged in the through hole in a rotating mode, and the driven gear is fixedly sleeved on the driven shaft.
6. The intervertebral distracting lifting repositor of claim 4 or 5, wherein: and two second side surfaces of the body are respectively provided with a sliding groove for accommodating the straight sections of the respective crawler belts, and the sliding grooves are arranged along the vertical direction.
7. The intervertebral distracting repositor of claim 6, wherein: the lower end of the body is provided with a pointed structure.
8. The intervertebral distracting repositor of claim 7, wherein: the handle is fixedly connected to the support frame and located above the support frame.
9. The intervertebral distracting lifting repositor of claim 8, wherein: the support frame is fixedly connected with the handle through the inverted U-shaped frame, two bottoms of the inverted U-shaped frame are respectively fixedly connected to the two support plates, and the handle is fixedly connected to the top surface of the inverted U-shaped frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110217055.8A CN113143428B (en) | 2021-02-26 | 2021-02-26 | Intervertebral expanding and lifting repositor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110217055.8A CN113143428B (en) | 2021-02-26 | 2021-02-26 | Intervertebral expanding and lifting repositor |
Publications (2)
| Publication Number | Publication Date |
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| CN113143428A CN113143428A (en) | 2021-07-23 |
| CN113143428B true CN113143428B (en) | 2023-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110217055.8A Active CN113143428B (en) | 2021-02-26 | 2021-02-26 | Intervertebral expanding and lifting repositor |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202355456U (en) * | 2011-09-14 | 2012-08-01 | 李鹏飞 | Intervertebral dilation restorer for spondylolisthesis |
| CN204033453U (en) * | 2014-06-11 | 2014-12-24 | 哈励逊国际和平医院 | A kind of lumbar spondylolisthesis intervertebral space distraction reduction device |
| CN106315179A (en) * | 2015-07-01 | 2017-01-11 | 江苏海龙电器有限公司 | Metal workpiece deburring automatic turnover device |
| CN209450636U (en) * | 2018-09-07 | 2019-10-01 | 山东省文登整骨医院 | Rolling support restorer |
| CN210408685U (en) * | 2019-05-28 | 2020-04-28 | 中国人民解放军总医院第八医学中心 | Endoscopic lower anchoring type intervertebral fusion device between lumbar vertebral plates |
| CN111449746A (en) * | 2020-05-26 | 2020-07-28 | 郴州市第一人民医院 | Active intervertebral body opening reduction forceps |
| CN111544108A (en) * | 2020-05-08 | 2020-08-18 | 吴海娟 | Intervertebral distraction reduction device for lumbar spondylolisthesis |
| CN211550914U (en) * | 2019-12-27 | 2020-09-22 | 杭州白泽新能科技有限公司 | Robot track transmission mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126301B (en) * | 2017-06-14 | 2018-05-22 | 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 | A kind of Invasive lumbar fusion device for side approach surgical treatment lumbar spondyloiisthesis |
-
2021
- 2021-02-26 CN CN202110217055.8A patent/CN113143428B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202355456U (en) * | 2011-09-14 | 2012-08-01 | 李鹏飞 | Intervertebral dilation restorer for spondylolisthesis |
| CN204033453U (en) * | 2014-06-11 | 2014-12-24 | 哈励逊国际和平医院 | A kind of lumbar spondylolisthesis intervertebral space distraction reduction device |
| CN106315179A (en) * | 2015-07-01 | 2017-01-11 | 江苏海龙电器有限公司 | Metal workpiece deburring automatic turnover device |
| CN209450636U (en) * | 2018-09-07 | 2019-10-01 | 山东省文登整骨医院 | Rolling support restorer |
| CN210408685U (en) * | 2019-05-28 | 2020-04-28 | 中国人民解放军总医院第八医学中心 | Endoscopic lower anchoring type intervertebral fusion device between lumbar vertebral plates |
| CN211550914U (en) * | 2019-12-27 | 2020-09-22 | 杭州白泽新能科技有限公司 | Robot track transmission mechanism |
| CN111544108A (en) * | 2020-05-08 | 2020-08-18 | 吴海娟 | Intervertebral distraction reduction device for lumbar spondylolisthesis |
| CN111449746A (en) * | 2020-05-26 | 2020-07-28 | 郴州市第一人民医院 | Active intervertebral body opening reduction forceps |
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| CN113143428A (en) | 2021-07-23 |
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