CN219700074U - High-precision pedicle screw - Google Patents
High-precision pedicle screw Download PDFInfo
- Publication number
- CN219700074U CN219700074U CN202320418188.6U CN202320418188U CN219700074U CN 219700074 U CN219700074 U CN 219700074U CN 202320418188 U CN202320418188 U CN 202320418188U CN 219700074 U CN219700074 U CN 219700074U
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- China
- Prior art keywords
- screw
- screw rod
- rod part
- universal ball
- pedicle
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- 230000002980 postoperative effect Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000007850 degeneration Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a high-precision pedicle screw which comprises a screw seat, a universal ball stud and a spherical ring, wherein the universal ball stud is arranged in the screw seat through the spherical ring; the universal ball stud comprises a first screw rod part and a plurality of second screw rod parts with different lengths, and an inner screw hole is formed in the bottom of the first screw rod part; the top of each second screw rod part is fixedly connected with an inner screw rod, and the inner screw rods are in threaded connection with the inner screw holes. The high-precision pedicle screw provided by the utility model has the advantages that the universal ball screw is formed by connecting the first screw rod part and the second screw rod part, the second screw rod part is provided with a plurality of types with different lengths, medical staff can select the most suitable length according to the screw hole depth on the spine of a patient, and the pedicle screw matching precision is ensured, so that the postoperative recovery of the patient is facilitated.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a high-precision pedicle screw.
Background
At present, the spine fixer is mostly adopted for fixing the trauma, the slippage, the degeneration diseases and other diseases of the spine, and has the advantages of small damage to the spine, keeping the mobility and the stability of the spine, reconstructing the biomechanical characteristics of the intervertebral disc, preventing and relieving the degeneration acceleration of the intervertebral disc at adjacent sections and the like, so that a plurality of hospitals have been adopted in recent years. The existing spine fixer has a plurality of types and mainly comprises devices such as Harbour rods, lugol rods and the like, and is formed by installing pedicle screws or universal pedicle screws, bone hooks and the like. Pedicle screws currently used in spinal surgery are already shaped when shipped, so the length of the screw cannot be adjusted. When the screw is shorter, the holding force is weaker during implantation, the problem of insufficient screw firmness is easy to occur, and even the risk that the pedicle screw is easy to deviate is existed. When the screw is long, the screw can protrude out of the screw hole opening, and the screw thread at the upper end of the screw can cause unnecessary trouble to muscle tissues of a patient.
Based on the above situation, the utility model provides a high-precision pedicle screw, which can effectively solve the problems.
Disclosure of Invention
The utility model aims to provide a high-precision pedicle screw. The high-precision pedicle screw provided by the utility model has the advantages that the universal ball screw is formed by connecting the first screw rod part and the second screw rod part, the second screw rod part is provided with a plurality of types with different lengths, medical staff can select the most suitable length according to the screw hole depth on the spine of a patient, and the pedicle screw matching precision is ensured, so that the postoperative recovery of the patient is facilitated.
The utility model is realized by the following technical scheme:
the high-precision pedicle screw comprises a screw seat, a universal ball screw and a spherical ring, wherein the universal ball screw is arranged in the screw seat through the spherical ring; the universal ball stud comprises a first screw rod part and a plurality of second screw rod parts with different lengths, and an inner screw hole is formed in the bottom of the first screw rod part; the top of each second screw rod part is fixedly connected with an inner screw rod, and the inner screw rods are in threaded connection with the inner screw holes.
According to the above aspect, as a further preferable aspect of the above aspect, the diameter of the second screw portion is equal to the diameter of the first screw portion.
According to the above technical scheme, as a further preferable technical scheme of the above technical scheme, the screw seat is provided with a slot hole for installing the connecting rod, and the slot hole is in threaded connection with a jackscrew.
According to the above technical scheme, as a further preferable technical scheme of the above technical scheme, first positioning pin holes are respectively formed in two sides of the screw seat, and second positioning pin holes which are connected with the first positioning pin holes in a matched mode are formed in the spherical ring.
According to the above technical scheme, as a further preferable technical scheme of the above technical scheme, the top of the jackscrew is provided with an inner hexagonal hole.
Compared with the prior art, the utility model has the following advantages:
the high-precision pedicle screw provided by the utility model has the advantages that the universal ball screw is formed by connecting the first screw rod part and the second screw rod part, the second screw rod part is provided with a plurality of types with different lengths, medical staff can select the most suitable length according to the screw hole depth on the spine of a patient, and the pedicle screw matching precision is ensured, so that the postoperative recovery of the patient is facilitated.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present utility model, preferred embodiments of the present utility model will be described below with reference to specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.
Example 1:
the high-precision pedicle screw comprises a screw seat 1, a universal ball screw 2 and a spherical ring 3, wherein the universal ball screw 2 is arranged in the screw seat 1 through the spherical ring 3; the universal ball stud 2 comprises a first screw rod part 21 and a plurality of second screw rod parts 22 with different lengths, wherein an inner screw hole 211 is formed in the bottom of the first screw rod part 21; an inner screw rod 221 is fixedly connected to the top of each second screw rod portion 22, and the inner screw rod 221 is in threaded connection with the inner screw hole 211.
The universal ball stud is formed by connecting the first screw rod part and the second screw rod part, the second screw rod part is provided with a plurality of types with different lengths, medical staff can select the most suitable length according to the screw hole depth on the spine of a patient, and the matching precision of pedicle screws is ensured, so that the postoperative recovery of the patient is facilitated.
Further, in another embodiment, the diameter of the second screw portion 22 is equal to the diameter of the first screw portion 21.
Further, in another embodiment, the screw seat 1 is provided with a slot 11 for installing a connecting rod, and the slot 11 is in threaded connection with the jackscrew 4. By providing the jackscrews 4, the connecting rod inserted into the slot 11 is facilitated to be fixed.
Further, in another embodiment, the two sides of the screw seat 1 are respectively provided with a first positioning pin hole 12, and the spherical ring 3 is provided with a second positioning pin hole 31 in fit connection with the first positioning pin hole 12. By providing the first and second positioning pin holes 31, the screw seat 1 and the spherical ring 3 are conveniently fixed by the positioning pin.
Further, in another embodiment, the top of the jackscrew 4 is provided with a hexagonal hole 41. By providing the socket holes 41, the removal of the jackscrews 4 by socket wrenches is facilitated.
Based on the description of the utility model and the drawings, one skilled in the art will readily make or use a high precision pedicle screw of the utility model and be able to produce the positive effects described herein.
Unless specifically stated otherwise, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the positional relationship indicated is based on the positional relationship indicated in the drawings, and is merely for convenience of describing the present utility model and simplifying the description, and it is not necessary to indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationship in the present utility model are merely for exemplary illustration and should not be construed as limitations of the present patent, and it is possible for those skilled in the art to understand the specific meaning of the above terms in conjunction with the drawings and according to the specific circumstances.
Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" herein are to be construed broadly, e.g., they may be fixed, removable, or integral; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present utility model fall within the scope of the present utility model.
Claims (5)
1. The utility model provides a high accuracy pedicle screw which characterized in that: the universal ball stud comprises a screw seat (1), a universal ball stud (2) and a spherical ring (3), wherein the universal ball stud (2) is arranged in the screw seat (1) through the spherical ring (3); the universal ball stud (2) comprises a first screw rod part (21) and a plurality of second screw rod parts (22) with different lengths, and an inner screw hole (211) is formed in the bottom of the first screw rod part (21); the top of each second screw rod part (22) is fixedly connected with an inner screw rod (221), and the inner screw rods (221) are in threaded connection with the inner screw holes (211).
2. A high precision pedicle screw as claimed in claim 1, wherein: the diameter of the second screw part (22) is equal to that of the first screw part (21).
3. A high precision pedicle screw as claimed in claim 1, wherein: the screw seat (1) is provided with a slotted hole (11) for installing a connecting rod, and the slotted hole (11) is in threaded connection with a jackscrew (4).
4. A high precision pedicle screw as claimed in claim 1, wherein: the two sides of the screw seat (1) are respectively provided with a first positioning pin hole (12), and the spherical ring (3) is provided with a second positioning pin hole (31) which is matched and connected with the first positioning pin hole (12).
5. A high precision pedicle screw as claimed in claim 3, wherein: an inner hexagonal hole (41) is formed in the top of the jackscrew (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320418188.6U CN219700074U (en) | 2023-02-28 | 2023-02-28 | High-precision pedicle screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320418188.6U CN219700074U (en) | 2023-02-28 | 2023-02-28 | High-precision pedicle screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219700074U true CN219700074U (en) | 2023-09-19 |
Family
ID=88004649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320418188.6U Active CN219700074U (en) | 2023-02-28 | 2023-02-28 | High-precision pedicle screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219700074U (en) |
-
2023
- 2023-02-28 CN CN202320418188.6U patent/CN219700074U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 314109 Building 8, No. 2699 Keji Avenue, Luoxing Street, Jiashan County, Jiaxing, Zhejiang Province Patentee after: Yalang Medical Equipment (Zhejiang) Co.,Ltd. Country or region after: China Address before: 314109 Building 8, No. 2699 Keji Avenue, Luoxing Street, Jiashan County, Jiaxing, Zhejiang Province Patentee before: Yarang Medical Technology (Zhejiang) Co.,Ltd. Country or region before: China |