CN213787747U - Pedicle screw feeding device - Google Patents
Pedicle screw feeding device Download PDFInfo
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- CN213787747U CN213787747U CN202021505110.0U CN202021505110U CN213787747U CN 213787747 U CN213787747 U CN 213787747U CN 202021505110 U CN202021505110 U CN 202021505110U CN 213787747 U CN213787747 U CN 213787747U
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- rod
- main rod
- handle
- clamping
- sleeve
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Abstract
The utility model discloses a pedicle screw nailing device, which comprises a handle, a rod sleeve and a main rod, wherein the cross section of one end of the main rod is rectangular, the main rod is arranged in the rod sleeve, one end of the main rod, the cross section of which is rectangular, is detachably connected with the handle, the other end of the main rod is provided with a screw head, the handle is provided with a clamping sleeve movably clamped with the rod sleeve, and clamping rings are arranged on the clamping sleeve at intervals; the method is characterized in that: the main rod is a hollow rod piece, an auxiliary rod is arranged in the main rod, and a sliding groove penetrating through the interior of the main rod is formed in the part of the main rod connected with the handle; one end of the auxiliary rod is provided with a push column and is arranged in the chute, and the other end of the auxiliary rod is provided with a clamping head; the cutting ferrule is provided with a push groove parallel to the axis of the cutting ferrule, and the handle is arranged on the main rod in a matching way through the push groove and the push column. The screw feeder can be adjusted to adapt to different types of pedicle screws.
Description
Technical Field
The utility model relates to the technical field of medical auxiliary equipment, concretely relates to pedicle of vertebral arch screw goes up nail ware.
Background
Pedicle of vertebral arch screw mainly used chest lumbar vertebrae fracture's is fixed, pedicle of vertebral arch screw can be divided into one-way short tail nail according to the type, one-way long tail nail, universal short tail nail, universal long tail nail four kinds, pedicle of vertebral arch screw can be effectual the three-column of completion backbone fixed, be the most extensive internal fixation mode of clinical treatment backbone relevant disease application, because pedicle of vertebral arch screw type's difference, need use the screw ware pertinence of screwing on of difference when fixing, the type of pedicle of vertebral arch screw that uses often is not unified in same field operation, need use different screw ware when screwing in pedicle of vertebral arch screw side to accomplish, cause the operation inconvenience, increase the operation length, increase the cost of being equipped with the screw ware.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned problem, designed a pedicle of vertebral arch screw ware of going up, can adjust the pedicle of vertebral arch screw that the ware adapted different grade type of going up.
In order to solve the above technical problem and achieve the above technical effect, the utility model discloses a following technical content realizes:
a pedicle screw nailing device comprises a handle, a rod sleeve and a main rod, wherein the cross section of one end of the main rod is rectangular, the main rod is installed in the rod sleeve, one end of the main rod with the rectangular cross section is detachably connected with the handle, the other end of the main rod is provided with a screw head, the handle is provided with a clamping sleeve movably clamped with the rod sleeve, and clamping rings are arranged on the clamping sleeve at intervals; the main rod is a hollow rod piece, an auxiliary rod is arranged in the main rod, and a sliding groove penetrating through the interior of the main rod is formed in the part of the main rod connected with the handle; one end of the auxiliary rod is provided with a push column and is arranged in the chute, and the other end of the auxiliary rod is provided with a clamping head; the cutting ferrule is provided with a push groove parallel to the axis of the cutting ferrule, and the handle is arranged on the main rod in a matching way through the push groove and the push column.
Furthermore, a clamping groove is formed in the inner wall of the main rod, and a raised line matched with the clamping groove is formed in the outer wall of the auxiliary rod.
Furthermore, the end face of the push groove, which is transversely cut to the axis of the clamping sleeve, is positioned at the clamping ring closest to the handle.
Further, the screw head is T-shaped.
Further, the clamping head is of an inner hexagon shape.
The utility model has the advantages that:
1. the pedicle screw feeding device can be suitable for one-way long-tail screws and universal long-tail screws, and can be conveniently put into pedicle screws in an operation.
2. The problem of surgical instruments change frequently in clinical operation is solved, and the applicability is stronger.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the whole structure of a pedicle screw feeder of the present invention;
FIG. 2 is a schematic structural view of a main rod and an auxiliary rod of the pedicle screw nailing device of the present invention;
FIG. 3 is a schematic view of the main rod, the auxiliary rod and the auxiliary structure of the pedicle screw driver of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-handle, 101-cutting ferrule, 102-snap ring, 103-push groove, 2-rod sleeve, 3-main rod, 301-sliding groove, 302-screw head, 4-auxiliary rod, 401-push column and 402-clamping head.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
For a clearer description of the present invention, the following description is made with reference to specific embodiments:
examples
Referring to fig. 1-3, a pedicle screw feeder comprises a handle 1, a rod sleeve 2 and a main rod 3, wherein the cross section of one end of the main rod 3 is rectangular, the main rod 3 is arranged in the rod sleeve 2, one end of the main rod 3 with the rectangular cross section is detachably connected with the handle 1, the other end of the main rod 3 is provided with a screw head 302, a clamping sleeve 101 is arranged on the handle 1 and movably clamped with the rod sleeve 2, and clamping rings 102 are arranged on the clamping sleeve 101 at intervals; the main rod 3 is a hollow rod, the inside of the main rod is provided with the auxiliary rod 4, and the part of the main rod 3 connected with the handle 1 is provided with a chute 301 penetrating through the inside of the main rod 3; one end of the auxiliary rod 4 is provided with a push column 401 and is arranged in the sliding groove 301, and the other end is provided with an inner hexagonal clamping head 402; the cutting ferrule 101 is provided with a push groove 103 parallel to the axis of the cutting ferrule 101, and the handle 1 is mounted on the main rod 3 through the push groove 103 and the push column 401 in a matching manner.
The inner wall of the main rod 3 is provided with a clamping groove, and the outer wall of the auxiliary rod 4 is provided with a convex strip matched with the clamping groove. It is possible to provide support when rotating the main lever.
The end surface of the push groove 103, which is transverse to the axial center of the ferrule 101, is located at the snap ring 102 closest to the handle 1.
The utility model relates to a concrete application when pedicle of vertebral arch screw goes up nail ware and uses does: when the auxiliary rod is used, the auxiliary rod is arranged in the main rod, the push column is positioned on the end face, close to the end head of the main rod, of the sliding groove, so that the chuck is positioned inside the main rod, the main rod is arranged in the rod sleeve, and the handle is matched with the push column according to the push groove and wraps the main rod inside the rod sleeve; when the one-way long-tail pedicle screw is screwed in, the T-shaped screw head is matched with the pedicle screw for screwing in; when the universal long-tail pedicle screw is screwed in, the clamping ring closest to the handle on the handle is pushed into the rod, the push groove pushes the push column to push the inner hexagonal chuck at the end of the auxiliary rod out of the T-shaped screw head, and the screw is screwed in.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A pedicle screw nailing device comprises a handle, a rod sleeve and a main rod, wherein the cross section of one end of the main rod is rectangular, the main rod is installed in the rod sleeve, one end of the main rod with the rectangular cross section is detachably connected with the handle, the other end of the main rod is provided with a screw head, the handle is provided with a clamping sleeve movably clamped with the rod sleeve, and clamping rings are arranged on the clamping sleeve at intervals; the method is characterized in that: the main rod is a hollow rod piece, an auxiliary rod is arranged in the main rod, and a sliding groove penetrating through the interior of the main rod is formed in the part of the main rod connected with the handle; one end of the auxiliary rod is provided with a push column and is arranged in the chute, and the other end of the auxiliary rod is provided with a clamping head; the cutting ferrule is provided with a push groove parallel to the axis of the cutting ferrule, and the handle is arranged on the main rod in a matching way through the push groove and the push column.
2. A pedicle screw driver according to claim 1, wherein: the inner wall of the main rod is provided with a clamping groove, and the outer wall of the auxiliary rod is provided with a convex strip matched with the clamping groove.
3. A pedicle screw driver according to claim 1, wherein: the end face of the push groove, which transversely cuts the axis of the clamping sleeve, is positioned at the clamping ring closest to the handle.
4. A pedicle screw driver according to claim 1, wherein: the screw head is T-shaped.
5. A pedicle screw driver according to claim 1, wherein: the chuck is hexagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021505110.0U CN213787747U (en) | 2020-07-27 | 2020-07-27 | Pedicle screw feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021505110.0U CN213787747U (en) | 2020-07-27 | 2020-07-27 | Pedicle screw feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213787747U true CN213787747U (en) | 2021-07-27 |
Family
ID=76931147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021505110.0U Active CN213787747U (en) | 2020-07-27 | 2020-07-27 | Pedicle screw feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213787747U (en) |
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2020
- 2020-07-27 CN CN202021505110.0U patent/CN213787747U/en active Active
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