CN102210602B - Reamer - Google Patents
Reamer Download PDFInfo
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- CN102210602B CN102210602B CN 201010145154 CN201010145154A CN102210602B CN 102210602 B CN102210602 B CN 102210602B CN 201010145154 CN201010145154 CN 201010145154 CN 201010145154 A CN201010145154 A CN 201010145154A CN 102210602 B CN102210602 B CN 102210602B
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- cutter head
- reamer
- cutting edge
- handle
- arc
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Abstract
The application discloses a reamer, which is characterized by comprising a cutter head and a cutter handle, wherein the cutter head and the cutter handle are connected; the cutter head is a flat cuboid cutter head; cutting edges are formed on the four edges of the flat cuboid cutter head; and the profile of the cutting edges are arc shaped. The cutter head disclosed by the application adopts double-side and four-edge design, has a plurality of cutting edges, improves reaming efficiency and makes the reaming more smooth and soft; the arc-shaped cutting edge profile design makes the sheaving more fit with the physiological curvature of the end plate of the human body, reduces ineffective damage, accelerates scraping end plate graft bed forming, and contributes to the fit between the implanted material and the end plate to make the implanted material supported stably; and the arc-shaped cutting edge profile makes the glue scraping part more smooth and uniform.
Description
Technical field
The application relates to a kind of bone surgery set, particularly relates to a kind of reamer.
Background technology
Reamer is the necessary apparatus in the nuclei pulposus of herniated lumbar discs enucleation; Reamer is used for the hole of intervertebral drilling is further enlarged, and is convenient to the operation (as implanting Invasive lumbar fusion device etc.) of subsequent procedures.Reamer not only requires sharp, can remove unnecessary cartilage and hyperosteogeny part rapidly, and requires the operating efficiency height, saves operating time as best one can, will guarantee safety in operation technique.
The structure of tradition reamer is a lot, the Capstone of Sofamor for example, and the Milestone that prestige is high all adopts the square head end, and such head end is unfavorable for entering intervertebral space; The cutting edge of traditional reamer is outstanding, accidentally injures its hetero-organization easily, and thick head end is unfavorable for entering intervertebral or is unfavorable for that being rotated expansion at intervertebral cuts with scissors, and efficient is low.
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of reamer, has improved and has expanded hinge efficient, has accelerated scraper plate plant bed shaping speed, is easier to enter intervertebral space.
Technical scheme is as follows:
A kind of reamer comprises cutter head and handle of a knife, and described cutter head is connected with handle of a knife;
Described cutter head is flat class cuboid cutter head;
Four ribs of described flat class cuboid cutter head are provided with cutting edge, and described cutter head is two sides four sword structures;
The profile of described cutting edge is arc.
Above-mentioned reamer, preferred, the head end of described cutter head is smooth arcuation convex surface.
Above-mentioned reamer, preferred, described cutter edge is other to be provided with chip area, is the transition of circular arc section between described cutting edge and the described chip area.
Above-mentioned reamer, preferred, each face of described cutter head is provided with the reinforcement rib, is used for improving the anti-torsion ability of cutter head.
Above-mentioned reamer, preferred, described handle of a knife is provided with colour circle, is used for distinguishing the height specification of described reamer.
The technical scheme that is provided by above the embodiment of the present application as seen, cutter head of the present invention adopts two sides four swords design, the multiple-cutting-edge mouth has improved and has expanded hinge efficient, and made when expanding hinge more smoothly submissive; The design of curved edge profile is repaiied and is scraped the human body soleplate physiologic radian of fitting more, reduces invalid destruction, add quick service and scrape soleplate plant bed shaping speed, be conducive to the applying of implant and soleplate, make its supporting ﹠ stablizing, the curved edge profile makes the frictioning place evenly level and smooth more in addition; Flat type cutter head and the design of importing angle make the expansion reamer be easy to enter intervertebral space more; Be provided with the specification colour circle, be convenient to the expansion reamer that the doctor distinguishes different size fast, improved operation efficient.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structure chart of the disclosed reamer of the embodiment of the present application;
Fig. 2 is the structure chart of the disclosed reamer cutter head of the embodiment of the present application;
Fig. 3 is provided with chip area and strengthens the cutter head structure figure of rib for the embodiment of the present application is disclosed;
The profile that Fig. 4 faces from the cutter head front end for the disclosed reamer of the embodiment of the present application;
Fig. 5 is the disclosed Knife handle structure figure that is provided with colour circle of the embodiment of the present application;
Fig. 6 is the another structure chart of the disclosed reamer cutter head of the embodiment of the present application.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all should belong to the scope of the application's protection.
The structure chart of the disclosed reamer of the embodiment of the present application comprises cutter head 1 and handle of a knife 2 as shown in Figure 1, and handle of a knife 1 is connected with handle of a knife 2.
The cutter head structure figure of the disclosed reamer of the embodiment of the present application as shown in Figure 2, the cutter head of the disclosed reamer of the embodiment of the present application is flat class cuboid cutter head; Be respectively arranged with cutting edge 3 on four long ribs of flat class cuboid cutter head, the profile of cutting edge 3 is arc.
Whole cutter head is designed to flat-shaped, is because before the Kong Zaiwei of intervertebral space expanded hinge, general diameter was less; Cutter head is designed to flat-shaped, earlier flat-shaped one side is inserted during use and waited to expand in the intervertebral space of hinge, be rotated then and expand the hinge operation; Flat-shaped structure Design is conducive to reduce the resistance that reamer enters, and the rear portion of reamer is introduced into rapidly waits to expand in the intervertebral space of hinge simultaneously, reduces the operation technique difficulty and raises the efficiency.
The profile of cutting edge 3 designs for arc, is because the human body soleplate is not desirable plane, also has physiologic radian; Cutting edge adopts the arc design, repaiies the process of the scraping human body soleplate physiologic radian of more fitting, and reduces invalid destruction, adds quick service and scrapes soleplate plant bed shaping speed, is conducive to the applying of implant and soleplate, makes its stable support; The curved edge profile makes and scrapes the hinge position more smoothly evenly in addition.
On four long ribs of class cuboid cutting edge 3 being set all, is in order to strengthen the intensity of cutter head, to make it more durable.
The head end of cutter head adopts and imports the angle design, is smooth arcuation convex surface, makes reamer can enter intervertebral foramina smoothly, and has reduced the injury to tissue.
The cutter head structure figure that the embodiment of the present application is disclosed to be provided with chip area and to strengthen rib as shown in Figure 3, consider the needs that expand chip removal in the hinge process, the cutter head of reamer is under the prerequisite that as far as possible keeps Breadth Maximum, each cutting edge is other to be provided with chip area 4, and cutter head be provided with chip area the two sides be provided with and strengthen rib 5.
Adopt circular arc section transition design between the cutting edge of reamer cutter head and the chip area 4, improved and expanded hinge efficient, and made when expanding hinge more smoothly submissive.
Because the cutter head of reamer is provided with a plurality of cutting edges and each cutting edge next door is provided with chip area 4, the anti-torsion ability of the whole cutter head that makes descends, so be provided with reinforcement rib 5 on the two sides of the cutter head that is provided with chip area 4, be used for improving the anti-torsion ability of cutter head, make cutter head more durable.
The profile that the disclosed reamer of the embodiment of the present application is faced from the cutter head front end as shown in Figure 4, adopt circular arc section transition design between cutting edge 3 and the chip area 4, four cutting edge 3 next doors are provided with chip area 4, and the cutter head two sides that is provided with chip area 4 is provided with strengthens rib 5.
The Knife handle structure figure that the embodiment of the present application is disclosed to be provided with colour circle as shown in Figure 5, the another structure chart of disclosed reamer cutter head as shown in Figure 6, in conjunction with Fig. 5 and Fig. 6;
According to the needs of operation, reamer need possess different height specifications, and as shown in Figure 6, H represents the height of reamer; Among Fig. 5, the handle of a knife of reamer is provided with colour circle 6, and the different set colors of the height of the corresponding reamer of described colour circle are also different, and namely the different different specification of color differentiating is convenient to the doctor like this and is selected, and improves operation efficient.
Each embodiment in this description all adopts the mode of going forward one by one to describe, and identical similar part is mutually referring to getting final product between each embodiment, and each embodiment stresses is difference with other embodiment.The above only is the application's the specific embodiment; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the application's protection domain.
Claims (5)
1. a reamer is characterized in that, comprises cutter head and handle of a knife, and described cutter head is connected with handle of a knife;
Described cutter head is flat class cuboid cutter head;
Four ribs of described flat class cuboid cutter head are provided with cutting edge, and described cutter head is two sides four sword structures;
The profile of described cutting edge is arc.
2. reamer according to claim 1 is characterized in that, the head end of described cutter head is smooth arcuation convex surface.
3. reamer according to claim 1 is characterized in that, the cutting edge of described cutter head is other to be provided with chip area, is the transition of circular arc section between described cutting edge and the described chip area.
4. reamer according to claim 1 is characterized in that, each face of described cutter head is provided with the reinforcement rib, is used for improving the anti-torsion ability of cutter head.
5. reamer according to claim 1 is characterized in that, described handle of a knife is provided with colour circle, is used for distinguishing the height specification of described reamer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010145154 CN102210602B (en) | 2010-04-12 | 2010-04-12 | Reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010145154 CN102210602B (en) | 2010-04-12 | 2010-04-12 | Reamer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102210602A CN102210602A (en) | 2011-10-12 |
| CN102210602B true CN102210602B (en) | 2013-09-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010145154 Active CN102210602B (en) | 2010-04-12 | 2010-04-12 | Reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102210602B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH666398A5 (en) * | 1985-11-28 | 1988-07-29 | Jaquet Orthopedie | Transcutaneous pin for fixation of bone part or fragment |
| CN2387870Y (en) * | 1999-05-22 | 2000-07-19 | 阎德强 | Spade drill for pedicle of vertebral arch |
| US7604643B2 (en) * | 2004-04-06 | 2009-10-20 | Synthes Usa, Llc | Adjustable tool for cannulated fasteners |
-
2010
- 2010-04-12 CN CN 201010145154 patent/CN102210602B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102210602A (en) | 2011-10-12 |
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Effective date of registration: 20181214 Address after: Room 226, No. 112, Fangzhong Road, Suzhou Industrial Park, Jiangsu Province Patentee after: Suzhou minimally invasive Department of orthopedics medical tools Co., Ltd. Address before: 201203 No. 23, Lane 1-28, 588 Tianxiong Road, Zhoupu Town, Nanhui, Shanghai Patentee before: Shanghai MicroPort Orthopedics Co., Ltd. |
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| TR01 | Transfer of patent right |