CN211535007U - Novel self-stabilizing bone grafting-free minimally invasive fusion cage for cervical vertebra - Google Patents
Novel self-stabilizing bone grafting-free minimally invasive fusion cage for cervical vertebra Download PDFInfo
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- CN211535007U CN211535007U CN201921513846.XU CN201921513846U CN211535007U CN 211535007 U CN211535007 U CN 211535007U CN 201921513846 U CN201921513846 U CN 201921513846U CN 211535007 U CN211535007 U CN 211535007U
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- spring pin
- gear
- fusion cage
- fusion
- sliding
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Abstract
The novel self-stabilizing bone grafting-free minimally invasive fusion cage for the cervical vertebra comprises a fusion cage body, wherein the fusion cage body comprises a fusion bottom plate and a sliding upper plate, the fusion bottom plate is connected with the sliding upper plate in a sliding way, because patients are different, therefore, the required height of the fusion cage is different, the fusion cage in the prior art is not very convenient to adjust the height, the difficulty of the operation is increased, when the utility model is used, a screwdriver, which is in conformity with the shape of the operation slot, may be used, the screwdriver being inserted into the operation slot, then the screwdriver is pushed forwards to separate the head of the spring pin from the clamping groove, at the moment, the screwdriver can be rotated to drive the spring pin to rotate, and the spring pin and the sliding groove in the gear are clamped together, so that the gear rotates together, and the gear can drive the rack to slide when rotating, so as to open the sliding upper plate and increase the height of the fusion cage.
Description
Technical Field
The utility model belongs to the technical field of the medical treatment technique and specifically relates to a novel self-stabilization bone grafting minimally invasive fusion cage of exempting from of cervical vertebra is related to.
Background
Spinal fusion is one of the most widely used techniques in spinal surgery, and is promoted primarily by establishing immediate spinal stabilization and implant osteogenesis, osteoinduction, and osteoconductive effects.
Because patients are different, the required height of the fusion cage can be different, the fusion cage in the prior art is not very convenient to adjust the height, the difficulty of the operation is increased, and therefore the novel cervical vertebra self-stabilizing bone grafting-free minimally invasive fusion cage is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming prior art's defect, the utility model provides a novel self-stabilization of cervical vertebra exempts from to plant bone wicresoft and fuses ware, the effectual solution because patient is different, so the height that fuses the ware that needs also can have the difference, and the fusion ware among the prior art is not very convenient height-adjusting, has increased the problem of the degree of difficulty of operation.
In order to achieve the purpose, the utility model discloses novel self-stabilization bone grafting minimal invasion fusion cage of cervical vertebra, including fusing the ware body, it includes to fuse the ware body
The fusion bottom plate is connected with the sliding upper plate in a sliding manner;
the gear is rotatably connected with the fusion bottom plate, and a sliding groove is embedded in the end face of the gear rotating shaft;
and the rack is vertically fixed on the sliding upper plate and is meshed and connected with the gear.
The gear fixing mechanism comprises a spring pin, one end of the spring pin is clamped in the sliding groove in a sliding mode, the other end of the spring pin is embedded into an operation groove, and the operation groove can be of a regular polygon screw structure;
and the pin rotation limiting mechanism is arranged on the fusion bottom plate, and when one end of the spring pin with the operation groove is connected with the pin rotation limiting mechanism, the rotation of the gear is limited.
Preferably, the bottom of the sliding groove is connected with the tail part of the spring pin through a return spring.
Preferably, a sliding guide piece of the spring pin is arranged in the sliding groove.
Preferably, the pin rotation limiting mechanism comprises a fixing plate, the fixing plate and the fusion bottom plate are integrally formed, an operation opening penetrates through the fixing plate, and the operation opening corresponds to the operation groove in position.
Preferably, the one side that the fixed plate is close to the gear is equipped with the chucking groove, the chucking groove is regular polygon structure, the head of spring pin keeps unanimous with the shape in chucking groove, and the card can be dismantled in the chucking groove to the head of spring pin.
Preferably, the outer surfaces of the fusion bottom plate and the sliding upper plate are both provided with protruding thorns.
1. The height of the fusion cage is adjusted by driving the rack to slide through the rotation of the gear, and the rotation of the gear can be controlled by a screwdriver, so that the operation is convenient;
2. the utility model discloses a setting of chucking groove and spring pin when needs running gear, can make spring pin and chucking groove break away from, and the running spring pin can drive gear revolve, and when needs fixed gear, the head card that makes the spring pin goes into the chucking groove can.
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 invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic view of the three-dimensional structure of the present invention.
Fig. 2 is an explosion structure diagram of the spring pin mounting structure of the present invention.
Fig. 3 is another schematic diagram of the explosion structure of the spring pin mounting structure of the present invention.
In the figure: the device comprises a fusion bottom plate 1, a sliding upper plate 2, a gear 3, a rack 4, a spring pin 5, an operation groove 6, a return spring 7, a sliding guide sheet 8, an operation opening 9, a clamping groove 10 and a protruding thorn 11.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying fig. 1-3.
As shown in figures 1-3, the novel self-stabilizing bone grafting-free minimally invasive fusion cage for cervical vertebra of the utility model comprises a fusion cage body which comprises
The fusion bottom plate 1 and the sliding upper plate 2 are connected in a sliding mode, the fusion bottom plate 1 is connected with the sliding upper plate 2 in a sliding mode, and the fusion bottom plate 1 and the sliding upper plate 2 can be manufactured through a 3D printing technology;
the gear 3, the gear 3 and the fusion bottom plate 1 are rotatably connected, and a sliding groove is embedded in the end surface of a rotating shaft of the gear 3;
a rack 4, the rack 4 is vertically fixed on the sliding upper plate 2, and the rack 4 is meshed with the gear 3
Gear fixing mechanism, gear fixing mechanism includes spring pin 5, the slip card of the one end of spring pin 5 is established in the spout, and the other end embedding of spring pin 5 is equipped with operation groove 6, operation groove 6 can be for regular polygon screw structure, gear 3 can drive rack 4 when the pivoted and slide, strut slip upper plate 2, increase the height that fuses the ware, can use the screwdriver that keeps unanimous with 6 shapes in operation groove when rotating gear 3, insert the screwdriver in operation groove 6 transfer gear 4, convenient operation.
The pin rotation limiting mechanism is arranged on the fusion bottom plate 1, when one end of a spring pin 5 with an operating groove 6 is connected with the pin rotation limiting mechanism, the rotation of the gear 3 is limited, the bottom of the sliding groove is connected with the tail of the spring pin 5 through a reset spring 7, one side, close to the gear 3, of the fixing plate is provided with a clamping groove 10, the clamping groove 10 is of a regular polygon structure, the head of the spring pin 5 is consistent with the shape of the clamping groove 10, the head of the spring pin 5 is detachably clamped in the clamping groove 10, the pin rotation limiting mechanism is used for fixing the rotation of the gear 3, namely the height of the fusion device is fixed, when the gear 3 is rotated, a screwdriver is firstly inserted into the operating groove 6 and then is pushed forwards to separate the head of the spring pin 5 from the clamping groove 10, at the moment, the screwdriver can be rotated to drive the spring pin 5 to rotate, the spring pin 5 and the sliding groove in the gear 3 are clamped together, so the gear 3 rotates together, when the gear 3 needs to be fixed, the pressure of a screwdriver on the head of the spring pin 5 is released, but the screwdriver is not separated from the operation groove 6, under the elastic action of the reset spring 7, the head of the spring pin 5 is clamped into the clamping groove 10, the clamping groove 10 is of a regular polygon structure, the head of the spring pin 5 cannot be directly clamped into the clamping groove 10, and the spring pin can be manually and lightly adjusted, so that the head of the spring pin 5 is slowly clamped into the clamping groove 10.
The sliding guide piece 8 of the spring pin 5 is arranged in the sliding groove.
The pin rotation limiting mechanism comprises a fixing plate, the fixing plate and the fusion bottom plate 1 are integrally formed, an operation opening 9 penetrates through the fixing plate, and the operation opening 9 corresponds to the operation groove 6 in position.
The outer surfaces of the fusion bottom plate 1 and the sliding upper plate 2 are both provided with spurs 11.
The utility model discloses when using, can use and keep unanimous screwdriver with 6 shapes in the operation groove, insert the screwdriver in operation groove 6, then promote the screwdriver forward, make the head of spring pin 5 break away from with chucking groove 10, can rotate the screwdriver this moment and drive spring pin 5 and rotate, and spring pin 5 is in the same place with the inside spout of gear 3 card, so gear 3 rotates together, gear 3 can drive rack 4 and slide when the pivoted, strut slip upper plate 2, increase the height that fuses the ware, when needing fixed gear 3, loosen the pressure of screwdriver to 5 heads, but do not let screwdriver and operation groove 6 break away from, under reset spring 7's spring action, the head card of spring pin 5 is gone into and can fix the rotation of gear 3 in chucking groove 10.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The novel self-stabilizing bone grafting-free minimally invasive fusion cage for the cervical vertebra comprises a fusion cage body, and is characterized in that the fusion cage body comprises a fusion bottom plate (1) and a sliding upper plate (2), wherein the fusion bottom plate (1) is in sliding connection with the sliding upper plate (2);
the gear (3) is rotatably connected with the fusion bottom plate (1), and a sliding groove is embedded in the end face of a rotating shaft of the gear (3);
the rack (4) is vertically fixed on the sliding upper plate (2), and the rack (4) is meshed with the gear (3);
the gear fixing mechanism comprises a spring pin (5), one end of the spring pin (5) is clamped in the sliding groove in a sliding mode, the other end of the spring pin (5) is embedded into an operation groove (6), and the operation groove (6) can be of a regular polygon screw structure;
and the pin rotation limiting mechanism is arranged on the fusion bottom plate (1), and when one end of the spring pin (5) with the operation groove (6) is connected with the pin rotation limiting mechanism, the rotation of the gear (3) is limited.
2. The novel self-stabilizing bone grafting-free minimally invasive fusion cage for the cervical vertebra according to claim 1, characterized in that the bottom of the sliding groove is connected with the tail of the spring pin (5) through a return spring (7).
3. The novel self-stabilizing bone grafting-free minimally invasive fusion cage for the cervical vertebra according to claim 1, characterized in that a sliding guide piece (8) of a spring pin (5) is arranged in the sliding groove.
4. The novel self-stabilizing bone grafting-free minimally invasive fusion cage for the cervical vertebra according to claim 1, wherein the pin rotation limiting mechanism comprises a fixing plate, the fixing plate is integrally formed with the fusion bottom plate (1), an operation port (9) is formed in the fixing plate in a penetrating manner, and the position of the operation port (9) corresponds to the position of the operation groove (6).
5. The novel self-stabilizing bone grafting-free minimally invasive fusion cage for the cervical vertebra according to claim 4, wherein a clamping groove (10) is formed in one surface, close to the gear (3), of the fixing plate, the clamping groove (10) is of a regular polygon structure, the head of the spring pin (5) is consistent with the shape of the clamping groove (10), and the head of the spring pin (5) is detachably clamped in the clamping groove (10).
6. The novel self-stabilizing bone grafting-free minimally invasive fusion cage for the cervical vertebra according to claim 1, characterized in that the outer surfaces of the fusion bottom plate (1) and the sliding upper plate (2) are provided with spurs (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921513846.XU CN211535007U (en) | 2019-09-11 | 2019-09-11 | Novel self-stabilizing bone grafting-free minimally invasive fusion cage for cervical vertebra |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921513846.XU CN211535007U (en) | 2019-09-11 | 2019-09-11 | Novel self-stabilizing bone grafting-free minimally invasive fusion cage for cervical vertebra |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211535007U true CN211535007U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921513846.XU Expired - Fee Related CN211535007U (en) | 2019-09-11 | 2019-09-11 | Novel self-stabilizing bone grafting-free minimally invasive fusion cage for cervical vertebra |
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| CN (1) | CN211535007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115501009A (en) * | 2022-10-28 | 2022-12-23 | 北京科技大学 | Artificial bionic lumbar vertebra based on 3D printing |
-
2019
- 2019-09-11 CN CN201921513846.XU patent/CN211535007U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115501009A (en) * | 2022-10-28 | 2022-12-23 | 北京科技大学 | Artificial bionic lumbar vertebra based on 3D printing |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 Termination date: 20210911 |
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| CF01 | Termination of patent right due to non-payment of annual fee |