CN2537351Y - Arrow shape saw - Google Patents
Arrow shape saw Download PDFInfo
- Publication number
- CN2537351Y CN2537351Y CN 02226668 CN02226668U CN2537351Y CN 2537351 Y CN2537351 Y CN 2537351Y CN 02226668 CN02226668 CN 02226668 CN 02226668 U CN02226668 U CN 02226668U CN 2537351 Y CN2537351 Y CN 2537351Y
- Authority
- CN
- China
- Prior art keywords
- shaft
- overcoat
- outer sleeve
- eccentric shaft
- front axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Surgical Instruments (AREA)
Abstract
The utility model relates to a sagittal saw which comprises a front outer sleeve (1), a back outer sleeve (2), a front shaft (3), a back shaft (4) and a cutting tool clamping device arranged at the end part of the front shaft (3), wherein the front parts of the front outer sleeve (1) and the back outer sleeve (2) are sheathed with the tail parts together, and a hollow cavity (5) is formed in the middle. The front end part of the front outer sleeve (1) is provided with a positioning sleeve (11), and the front shaft (3) is sheathed in the front outer sleeve (1) and the positioning sleeve (11), and is hinged in a fulcrum shaft (13) of the positioning sleeve (11). The back shaft (4) is arranged in the back outer sleeve (1), the tail part of the back shaft (4) is provided with a flexible shaft interface (6), and an eccentric shaft (7) is arranged on the top end surface of the back shaft (4) and is positioned in the hollow cavity (5). The tail part of the front shaft (3) is provided with a swing groove (8), and the eccentric shaft (7) is sheathed in the swing groove (8), and is matched with the inner wall of the swing groove (8). The utility model has the advantages of small size, light weight, reasonable structure, reliable work and convenient use, and conforms to the design of human engineering.
Description
1, technical field:
This utility model relates to a kind of maxillofacial bone electrical surgical instrument of medical use, relates in particular to a kind of sagittal saw.
2, background technology:
At present, the maxillofacial bone electrical surgical instrument of medical use on the market, range of application is comparatively extensive, is mainly used in the clinical surgery operation operations such as cutting to osseous tissue, engraving, grinding, osteotomy.Oral and Maxillofacial Surgery, as above mandibulectomy: angle of mandible garden arc osteotomy; The mandibular protraction surgery is put in order abnormal sagittal osteotomy; The maxillary protrusion surgery is put in order abnormal art; The remporomandibular joint excision; The too high attrition of cheekbone; Otorhinolaryngology surgery: as mastoid process tumorectomy, radical maxillary sinusotomy or the like; Ophthalmology: as socket of the eye bone cosmetology; Lacrimal passage molding shape art; Orbital fracture fixation etc.Sagittal saw is a kind of apparatus wherein, and mainly there is following deficiency in it, and volume is bigger, and is heavier, and unreasonable structure uses inconvenience, and price is higher, and structure is comparatively complicated.
3, summary of the invention:
The purpose of this utility model provides a kind of sagittal saw, and it makes the volume of entire product less by running part and overcoat are partly improved, and weight saving is rational in infrastructure, meets the ergonomic design, reliable operation, and it is comparatively convenient to use.
This utility model is achieved by the following technical solution: it comprises preceding overcoat, back overcoat, front axle, rear axle, with the cutter holding device that is installed in preceding shaft end, wherein preceding overcoat and nested being installed together of back overcoat head and the tail, and at the intermediate formation cavity, preceding overcoat leading section is installed positioning sleeve, front shaft sleeve pro-overcoat and positioning sleeve the inside, front axle is hinged on the fulcrum shaft on the positioning sleeve, rear axle is installed in overcoat the inside, back, the rear axle afterbody is provided with the flexible axle interface, the top end face of rear axle is provided with eccentric shaft, and eccentric shaft is positioned at the cavity the inside, and the afterbody of front axle is provided with the pendulum groove, excentric sleeve is being put the groove the inside, and cooperates with pendulum groove inwall.
Above-mentioned described cutter holding device comprises folder cutter head and locking nut.
Above-mentioned described eccentric shaft is inserted in pendulum groove the inside after can installing slip cap again.
This utility model compared with prior art has following advantage: it is simple in structure, and it is more reliable to work, and volume and weight is all less, and is rational in infrastructure, meets the ergonomic design, and staff can be firmly grasped easily, reliable operation, and it is comparatively convenient to use, and manufacturing cost is lower.
4, description of drawings:
Below in conjunction with accompanying drawing this utility model is done detailed explanation:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the B-B cutaway view of Fig. 1;
Fig. 3 is the structure chart of the cutter of this utility model use.
5, the specific embodiment:
As Fig. 1, shown in Figure 2, it comprises preceding overcoat (1) this utility model, back overcoat (2), front axle (3), rear axle (4), with the cutter holding device that is installed in front axle (3) end, wherein preceding overcoat (1) and nested being installed together of back overcoat (2) head and the tail, and in intermediate formation cavity (5), preceding overcoat (1) leading section is installed positioning sleeve (11), front axle (3) cover pro-overcoat (1) and positioning sleeve (11) the inside, front axle (3) is hinged on the fulcrum shaft (13) on the positioning sleeve (11), rear axle (4) is installed in back overcoat (1) the inside, rear axle (4) afterbody is provided with flexible axle interface (6), the top end face of rear axle (4) is provided with eccentric shaft (7), eccentric shaft (7) is positioned at cavity (5) the inside, the afterbody of front axle (3) is provided with pendulum groove (8), and eccentric shaft (7) is enclosed within pendulum groove (8) the inside, and cooperates with pendulum groove (8) inwall.Cutter holding device comprises folder cutter head (9) and locking nut (10), and front axle (3) end is provided with irrigation sleeve (16).Fulcrum shaft (13) comprises bearing (14) and bearing pin (15).Eccentric shaft (7) is inserted in pendulum groove (8) the inside after can installing slip cap (12) again.The outside of cavity (5) the inside, front axle (3) is equipped with spacing collar (10).
Fig. 2 is the cutter that this utility model uses.This utility model principle is that flexible axle rotates drive rear axle (4) rotation, eccentric shaft (7) rotates at the afterbody pendulum groove (8) of front axle (3) on rear axle (4) top end face, the last lower wall of compressing pendulum groove (8), thereby the afterbody of front axle (3) is swung up and down around fulcrum shaft (13), realize that front axle (3) end swings up and down around fulcrum shaft (13).
Claims (3)
1, a kind of sagittal saw, it is characterized in that it comprises preceding overcoat (1), back overcoat (2), front axle (3), rear axle (4), with the cutter holding device that is installed in front axle (3) end, wherein preceding overcoat (1) and nested being installed together of back overcoat (2) head and the tail, and in intermediate formation cavity (5), preceding overcoat (1) leading section is installed positioning sleeve (11), front axle (3) cover pro-overcoat (1) and positioning sleeve (11) the inside, front axle (3) is hinged on the fulcrum shaft (13) on the positioning sleeve (11), rear axle (4) is installed in back overcoat (1) the inside, rear axle (4) afterbody is provided with flexible axle interface (6), the top end face of rear axle (4) is provided with eccentric shaft (7), eccentric shaft (7) is positioned at cavity (5) the inside, the afterbody of front axle (3) is provided with pendulum groove (8), and eccentric shaft (7) is enclosed within pendulum groove (8) the inside, and cooperates with pendulum groove (8) inwall.
2, a kind of sagittal saw according to claim 1 is characterized in that cutter holding device comprises folder cutter head (9) and locking nut (10).
3, a kind of sagittal saw according to claim 1 is characterized in that being inserted in pendulum groove (8) the inside again after eccentric shaft (7) can be installed slip cap (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02226668 CN2537351Y (en) | 2002-03-31 | 2002-03-31 | Arrow shape saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02226668 CN2537351Y (en) | 2002-03-31 | 2002-03-31 | Arrow shape saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2537351Y true CN2537351Y (en) | 2003-02-26 |
Family
ID=33703623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02226668 Expired - Fee Related CN2537351Y (en) | 2002-03-31 | 2002-03-31 | Arrow shape saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2537351Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109833076A (en) * | 2019-03-18 | 2019-06-04 | 郑传渭 | A kind of sagittal saw |
-
2002
- 2002-03-31 CN CN 02226668 patent/CN2537351Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109833076A (en) * | 2019-03-18 | 2019-06-04 | 郑传渭 | A kind of sagittal saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |