CN111067674A - Angle adjusting method for fusion cage - Google Patents
Angle adjusting method for fusion cage Download PDFInfo
- Publication number
- CN111067674A CN111067674A CN201911399465.8A CN201911399465A CN111067674A CN 111067674 A CN111067674 A CN 111067674A CN 201911399465 A CN201911399465 A CN 201911399465A CN 111067674 A CN111067674 A CN 111067674A
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- China
- Prior art keywords
- outer sleeve
- hinged
- inner sleeve
- along
- threaded rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—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 belongs to the technical field of medical instruments, and particularly relates to an angle adjusting method for a fusion cage. The angle adjusting method for the fusion cage comprises the following steps: the front end of the inner sleeve is hinged with a threaded rod through a universal head; the threaded rod is clamped by a clamping head, and the clamping head is hinged to one side of the front end of the outer sleeve; the inner sleeve is driven by the linkage mechanism to move forwards along the outer sleeve and extend out of the outer sleeve, so that the fusion device connected with the free end of the threaded rod through threads rotates along the hinged position along with the clamping head. The angle adjusting method for the fusion cage can adjust the angle when the fusion cage is held, so that the fusion cage can smoothly enter a human body.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an angle adjusting method for a fusion cage.
Background
The fusion cage is an important treatment device in the vertebral body fusion, ensures that the vertebral column is immediately stabilized by opening the intervertebral space and restoring the tension of the fiber ring, the anterior and posterior longitudinal ligaments of the vertebral column, muscles and joint capsules, creates conditions for bone grafting fusion and reconstruction of a vertebral column sequence, and has the effects of maintaining the height of the intervertebral space, restoring the support of the anterior central column, increasing the volume of intervertebral foramen, relieving the compression of nerve roots, preventing the collapse of the intervertebral space, forming false joints and the like.
However, in the tense operation process, a doctor is required to accurately adjust the angle of the fusion cage so as to clamp the fusion cage into the adjacent vertebral bodies, so that the working strength and the error rate of the operator are increased, and the pain of a patient is also increased.
Disclosure of Invention
The invention aims to provide an angle adjusting method for a fusion cage.
In order to solve the above technical problem, the present invention provides an angle adjustment method for a fusion cage, comprising:
the front end of the inner sleeve is hinged with a threaded rod through a universal head;
the threaded rod is clamped by a clamping head, and the clamping head is hinged to one side of the front end of the outer sleeve;
the inner sleeve is driven by the linkage mechanism to move forwards along the outer sleeve and extend out of the outer sleeve, so that the fusion device connected with the free end of the threaded rod through threads rotates along the hinged position along with the clamping head.
Furthermore, by pressing the movable clamp handle in the linkage mechanism, the movable clamp handle approaches to the fixed clamp handle which is hinged with the movable clamp handle and fixed on the outer wall of the outer sleeve, the sliding block hinged with the movable clamp handle moves along the sliding hole on the outer wall of the outer sleeve, and therefore the inner sleeve linked with the sliding block moves forwards along the outer sleeve.
Furthermore, the limiting block is arranged at the moving front end of the sliding block and is fixedly connected with the outer sleeve, so that the sliding block is limited.
Further, the inner sleeve is prevented from retracting along the outer sleeve by a locking mechanism provided on the cage holder.
Furthermore, by rotating the screwing cap in the locking mechanism, the set screw clamped with the screwing cap is screwed into the outer sleeve and abuts against the inner sleeve, so that the movement of the inner sleeve is limited.
Furthermore, the movable clamp handle is provided with a holding hole, so that the movable clamp handle can be conveniently held.
The angle adjusting method for the fusion cage has the advantages that the inner sleeve is driven by the linkage mechanism to move forwards along the outer sleeve and extend out of the outer sleeve, so that the fusion cage in threaded connection with the free end of the threaded rod rotates along the hinged part along with the clamping head, the angle adjustment of the fusion cage is realized, the fusion cage can smoothly enter a human body, and the damage to the nerve of the human body when the fusion cage swings back and forth to adjust the position is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of an angle adjustment method for a fusion cage of the present invention.
In the figure:
the clamp comprises an inner sleeve 1, an outer sleeve 2, a sliding hole 21, a linkage mechanism 3, a sliding block 31, a movable clamp handle 32, a holding hole 321, a fixed clamp handle 33, a limiting block 34, a universal head 4, a threaded rod 5, a clamping head 6, a locking mechanism 7, a screwing cap 71 and a set screw 72.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Fig. 1 is a schematic view of an angle adjustment method for a fusion cage of the present invention.
As shown in fig. 1, the present embodiment provides an angle adjustment method for a fusion cage, including: the front end of the inner sleeve 1 is hinged with a threaded rod 5 through a universal head 4; the threaded rod 5 is clamped by a clamping head 6, and the clamping head 6 is hinged on one side of the front end of the outer sleeve 2; the inner sleeve 1 is driven by the linkage mechanism 3 to move forwards along the outer sleeve 2 and extend out of the outer sleeve 2, so that the fusion device connected with the free end of the threaded rod 5 through threads rotates along the hinged position along with the clamping head 6. The working method realizes the angle adjustment of the fusion cage, so that the fusion cage can smoothly enter the human body.
In this embodiment, by pressing the movable jaw handle 32 in the linkage mechanism 3, the movable jaw handle 32 approaches the fixed jaw handle 33 which is hinged to the movable jaw handle 32 and fixed to the outer wall of the outer sleeve 2, the slider 31 hinged to the movable jaw handle 32 moves along the sliding hole 21 in the outer wall of the outer sleeve 2, and the inner sleeve 1 linked to the slider 31 moves forward along the outer sleeve 2.
In this embodiment, the limiting block 34 is disposed at the moving front end of the sliding block 31 and fixedly connected to the outer sleeve 2, so as to limit the sliding block 31.
In this embodiment, the retraction of the inner sleeve 1 along the outer sleeve 2 is prevented by a locking mechanism 7 provided on the cage holder.
In this embodiment, by rotating the screw cap 71 of the locking mechanism 7, the set screw 72 engaged with the screw cap 71 is screwed into the outer sleeve 2 and abuts against the inner sleeve 1, thereby restricting the movement of the inner sleeve 1.
In the present embodiment, the grasping hole 321 is provided in the movable clamp handle 32, so that the movable clamp handle 32 can be grasped easily.
In this embodiment, the angle adjusting method for the fusion cage may be implemented by using the following structure, which includes: the device comprises an inner sleeve 1, an outer sleeve 2 and a linkage mechanism 3 connected with the inner sleeve 1; wherein the front end of the inner sleeve 1 is provided with a universal head 4; the universal head 4 is hinged with a threaded rod 5; one side of the front end of the outer sleeve 2 is hinged with a clamping head 6 suitable for clamping a threaded rod 5; the linkage mechanism 3 is suitable for driving the inner sleeve 1 to move forwards along the outer sleeve 2 and extend out of the outer sleeve 2, so that the fusion device connected with the free end of the threaded rod 5 through threads rotates along the hinged position along with the clamping head 6. This fuse ware holder drives inner skleeve 1 through link gear 3 and follows outer skleeve 2 forward movement and stretch out to the outer skleeve 2 outside to make the free end threaded connection's of threaded rod 5 fuse the ware and rotate along articulated department along with clamping head 6, realized carrying out angle adjustment to fusing the ware, make to fuse the ware and can get into the human body smoothly, reduced and fused the ware reciprocal swing and carry out the injury to the nerve of the human body when the position adjustment.
Wherein, the universal head 4 is connected with the threaded rod 5 through a pin; the threaded rod 5 is provided with an arc-shaped groove, one inner side of the clamping head 6 is also provided with the arc-shaped groove, and the threaded rod 5 is clamped with the clamping head 6 through a pin, so that the clamping head 6 can limit the rotation of the threaded rod 5; the length of the inner sleeve 1 which extends forwards out of the outer sleeve 2 is different, so that the threaded rod 5 rotates at different angles along the hinged part along with the clamping head 6, and the angle of the fusion cage connected with the free end of the threaded rod 5 through threads is adjusted.
In this embodiment, the outer wall of the outer sleeve 2 is provided with a sliding hole 21; the link mechanism 3 includes: a sliding block 31 linked with the inner sleeve 1, a movable clamp handle 32 hinged with the sliding block 31, and a fixed clamp handle 33 hinged with the movable clamp handle 32 and fixed on the outer wall of the outer sleeve 2; the handle 32 is pressed so that the slider 31 moves the inner sleeve 1 forward along the outer sleeve 2 along the sliding hole 21.
Specifically, when the fixed jaw handle 33 is held by one hand and the movable jaw handle 32 is pressed by the other hand to merge the movable jaw handle 32 in the direction of the fixed jaw handle 33, the slider 31 hinged to the movable jaw handle 32 extends forward along the sliding hole 21, and the slider 31 drives the inner sleeve 1 to move forward along the outer sleeve 2.
In this embodiment, the linkage mechanism 3 further includes: a limiting block 34 fixedly connected with the outer sleeve 2; the stopper 34 is disposed at the moving front end of the slider 31, so that the stopper 34 limits the slider 31. The limiting block 34 limits the sliding block 31 to prevent the sliding block 31 from driving the inner sleeve 1 to extend too long along the outer sleeve 2, so that the threaded rod 5 cannot be normally connected with the clamping head 6.
In this embodiment, the fusion cage further includes: a locking mechanism 7; the locking mechanism 7 includes: a screw cap 71 and a set screw 72 engaged with the screw cap 71; by rotating the cap 71, the set screw 72 is screwed into the outer sleeve 2 and abuts against the inner sleeve 1 to prevent the inner sleeve 1 from retracting along the outer sleeve 2.
Wherein, the bottom of the screw cap 71 is provided with a boss, and the front end of the set screw 72 is provided with a groove, so that the screw cap 71 is clamped with the set screw 72. When the angle of the threaded rod 5 rotating along the hinge joint with the clamping head 6 is determined, the screwing cap 71 is rotated, and then the set screw 72 is screwed into the outer sleeve 2 and abuts against the inner sleeve 1, so that the inner sleeve 1 cannot move in the outer sleeve 2, the inner sleeve 1 is prevented from retracting along the outer sleeve 2, and meanwhile, the function of positioning the rotating angle of the threaded rod 5 is achieved.
In this embodiment, the movable clamp handle 32 is provided with a holding hole 321 for easy pressing. By providing the holding hole 321, it is possible to facilitate better application of force to the movable jaw 32.
In conclusion, the angle adjusting method for the fusion cage drives the inner sleeve 1 to extend forwards along the outer sleeve 2 through the linkage mechanism 3, so that the fusion cage in threaded connection with the free end of the threaded rod 5 rotates along the hinged part along with the clamping head 6, the angle adjustment of the fusion cage is realized, the fusion cage can smoothly enter a human body, and the damage to the nerve of the human body when the fusion cage swings back and forth to adjust the position is reduced; by arranging the locking mechanism 7, the inner sleeve 1 is effectively prevented from retracting along the outer sleeve 2, and meanwhile, the rotation angle of the threaded rod 5 is positioned.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. An angle adjustment method for a fusion cage, comprising:
the front end of the inner sleeve is hinged with a threaded rod through a universal head;
the threaded rod is clamped by a clamping head, and the clamping head is hinged to one side of the front end of the outer sleeve;
the inner sleeve is driven by the linkage mechanism to move forwards along the outer sleeve and extend out of the outer sleeve, so that the fusion device connected with the free end of the threaded rod through threads rotates along the hinged position along with the clamping head.
2. The angle adjustment method according to claim 1,
by pressing the movable clamp handle in the linkage mechanism, the movable clamp handle approaches to the fixed clamp handle which is hinged with the movable clamp handle and fixed on the outer wall of the outer sleeve, the sliding block hinged with the movable clamp handle moves along the sliding hole on the outer wall of the outer sleeve, and therefore the inner sleeve linked with the sliding block moves forwards along the outer sleeve.
3. The angle adjustment method according to claim 2,
the limiting block is arranged at the moving front end of the sliding block and is fixedly connected with the outer sleeve, so that the sliding block is limited.
4. The angle adjustment method according to claim 1,
the inner sleeve is prevented from retracting along the outer sleeve by a locking mechanism provided on the cage holder.
5. The angle adjustment method according to claim 4,
by rotating the screwing cap in the locking mechanism, the fastening screw clamped with the screwing cap is screwed into the outer sleeve and abuts against the inner sleeve, so that the movement of the inner sleeve is limited.
6. The angle adjustment method according to claim 2,
the movable clamp handle is provided with the holding hole, so that the movable clamp handle can be conveniently held.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911399465.8A CN111067674A (en) | 2019-12-30 | 2019-12-30 | Angle adjusting method for fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911399465.8A CN111067674A (en) | 2019-12-30 | 2019-12-30 | Angle adjusting method for fusion cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111067674A true CN111067674A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911399465.8A Pending CN111067674A (en) | 2019-12-30 | 2019-12-30 | Angle adjusting method for fusion cage |
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| CN (1) | CN111067674A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112656553A (en) * | 2020-12-15 | 2021-04-16 | 北京爱康宜诚医疗器材有限公司 | Implant device and intervertebral disc prosthesis assembly |
| CN116919663A (en) * | 2023-09-18 | 2023-10-24 | 上海汇禾医疗器械有限公司 | Valve clamping piece device and use method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007050322A1 (en) * | 2005-10-21 | 2007-05-03 | Stryker Spine | System and method for fusion cage implantation |
| CN106806041A (en) * | 2017-02-14 | 2017-06-09 | 武汉医佳宝生物材料有限公司 | A kind of Invasive lumbar fusion device erector |
| CN108577923A (en) * | 2018-06-21 | 2018-09-28 | 黄荣泉 | Running fire Clip Applier |
| CN209107685U (en) * | 2018-07-30 | 2019-07-16 | 山东康盛医疗器械有限公司 | TLIF fusion device implanting device |
-
2019
- 2019-12-30 CN CN201911399465.8A patent/CN111067674A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007050322A1 (en) * | 2005-10-21 | 2007-05-03 | Stryker Spine | System and method for fusion cage implantation |
| CN106806041A (en) * | 2017-02-14 | 2017-06-09 | 武汉医佳宝生物材料有限公司 | A kind of Invasive lumbar fusion device erector |
| CN108577923A (en) * | 2018-06-21 | 2018-09-28 | 黄荣泉 | Running fire Clip Applier |
| CN209107685U (en) * | 2018-07-30 | 2019-07-16 | 山东康盛医疗器械有限公司 | TLIF fusion device implanting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112656553A (en) * | 2020-12-15 | 2021-04-16 | 北京爱康宜诚医疗器材有限公司 | Implant device and intervertebral disc prosthesis assembly |
| CN116919663A (en) * | 2023-09-18 | 2023-10-24 | 上海汇禾医疗器械有限公司 | Valve clamping piece device and use method |
| CN116919663B (en) * | 2023-09-18 | 2024-01-05 | 上海汇禾医疗器械有限公司 | Valve clamping piece device and use method |
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Application publication date: 20200428 |