CN203263514U - Arc sawtooth shear type meniscus trimmer - Google Patents
Arc sawtooth shear type meniscus trimmer Download PDFInfo
- Publication number
- CN203263514U CN203263514U CN 201320263965 CN201320263965U CN203263514U CN 203263514 U CN203263514 U CN 203263514U CN 201320263965 CN201320263965 CN 201320263965 CN 201320263965 U CN201320263965 U CN 201320263965U CN 203263514 U CN203263514 U CN 203263514U
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- CN
- China
- Prior art keywords
- meniscus
- shearing blade
- main rod
- shearing
- rod
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- Expired - Lifetime
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Abstract
The utility model belongs to the field of medical apparatuses, and relates to a meniscus minimally invasive trimming operative instrument, in particular to an arc sawtooth shear type meniscus trimmer. The arc sawtooth shear type meniscus trimmer can also be used for tissue removal in a narrow gap. The arc sawtooth shear type meniscus trimmer comprises two annular handles which are connected with a main rod and an auxiliary rod respectively. A concave sliding groove is formed in the main rod. The auxiliary rod is located inside the sliding groove of the main rod. Shearing blades are arranged at both the front end of the main rod and the front end of the auxiliary rod, are in 45-degree arc shapes and meet the physiological curvature of a meniscus. The shearing blade of the main rod is fixed. The shearing blade of the auxiliary rod can be moved in an opened-and-closed mode. The shearing edges of the shearing blades are in thin sawtooth shapes and can fix, bite and shear a meniscus tissue required to be trimmed. When the auxiliary rod handle of the arc sawtooth shear type meniscus trimmer gets close to the main rod handle, the auxiliary rod backwards slides along the sliding groove in the main rod, the shearing blade of the auxiliary rod and the shearing blade of the main rod are closed, and the meniscus tissue required to be eliminated is fixed, bitten and sheared by sawteeth at the shearing edges. When the auxiliary rod handle and the main rod handle are separated, the auxiliary rod slides forwards along the sliding groove in the main rod, the shearing blade of the auxiliary rod and the shearing blade of the main rod are separated, and the meniscus trimming process is completed.
Description
Technical field
This utility model relates to a kind of meniscus finishing apparatus, especially relates to a kind of arcuate serrated scissors meniscus Wicresoft prosthesis apparatus, belongs to medical instruments field.
Background technology
Meniscus is one deck fibrous cartilage between knee joint femur and tibia, is divided into interior lateral meniscus, is semilune, belongs to kneed necessary structure, and the joint is stable to keeping, kicking motion shakes, the Saving cortilage cartilage has important function.The residing position of meniscus and special construction make it easily cause under external force damage or wearing and tearing.Meniscus blood fortune is poor, is difficult for healing voluntarily, and the meniscus after damage or wearing and tearing not only can't be born original function, but also can damage kneed other structure, causes traumatic arthritis.Therefore, if meniscus injury or wearing and tearing diagnosis is clear and definite, operative treatment early.To damage or the wearing and tearing that are positioned at the meniscus free edge, conventional modus operandi is Following Partial Resection of Meniscus by Arthroscope or plasty.Yet, when the existing operating theater instruments of application is processed this type of meniscus injury, sting pincers (CN 202409047 U) etc. as first quarter moon Baphicacanthus cusia pincers, Meniscectomy, have a lot of shortcomings, be difficult for grasping as excision extension, easily excessively excision, especially for the meniscal crude edge of wearing and tearing, scope is cleared up in more difficult assurance; The secondary damage of meniscus is larger, the arthritic development of postoperative acceleration of wound; Instrumentation is subjected to angle limits, and operation inconvenience causes operating time to extend, and has increased the occurrence probability of the complication such as infection; The instrumentation process is complicated, and young doctor is difficult for grasping, and learning time is long.
Summary of the invention
In order to overcome above-mentioned shortcoming, this utility model provides a kind of arcuate serrated scissors meniscus dresser,
The technical scheme that its technical problem that solves this utility model adopts is:
This utility model is comprised of handle, chute connecting rod, arcuate serrated shearing blade.
This utility model is the rifle tong-like, two ring-shaped handles connect respectively mobile jib and secondary bar, mobile jib is with the spill chute, secondary bar is positioned at the chute of mobile jib, and mobile jib and secondary bar front end are shearing blade, is 45 degree circular arcs, meet meniscal physiologic radian, shear edge and be serrulate, the shearing blade of mobile jib maintains static, but the shearing blade folding activity of secondary bar.
Feature of the present utility model is that power is passed to bar front end shearing blade through handle along secondary bar; Mobile jib is fixed, and secondary bar is the front and back slip in the mobile jib chute; The mobile jib shearing blade is fixed, but secondary bar shearing blade folding activity; Shearing blade is 45 degree circular arcs, shears edge and is serrulate.
When applying pressure to two handles of the present utility model, secondary bar handle is drawn close to the mobile jib handle, the secondary bar that is connected on handle slides backward along the chute of mobile jib, drive the shearing blade closure of shearing blade and the mobile jib of its front end, shear the meniscal tissue that sawtooth is fixing and interlock need to be removed of edge on shearing blade.When secondary bar handle and mobile jib handle separate, secondary bar is along the mobile jib chute to front slide, and the shearing blade that drives its front end separates with the shearing blade of mobile jib, completes a work process, reaches the purpose of cleaning meniscus injury or wearing and tearing.
The beneficial effects of the utility model are that the apparatus preparation is simple, with low cost; The circular arc shearing blade meets meniscal physiologic radian, and flexible operation is easy, and operating time shortens, and postoperative complication is few; The zigzag shearing blade can play fixation in the shearing meniscal while of damage, prevents the meniscus slippage; In art, excision extension is accurate, and the secondary damage of operation is little, and meniscal crude edge is particularly suited for wearing and tearing; The apparatus feel is good, easily grasps.This utility model also is applicable to the cutting tissue in close clearance.
Description of drawings
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is section plan of the present utility model.
Fig. 2 is shearing blade top view of the present utility model.
Fig. 3 is slide bar cross-sectional view of the present utility model.
Fig. 4 is shearing blade enlarged drawing of the present utility model.
In figure: 1. secondary bar handle 2. secondary bar 4. secondary bar shearing blade 6. mobile jib shearing blade A. top view direction B. cross-sectional view directions of mobile jib 5. of mobile jib handle 3..
The specific embodiment
As shown in Figure 1, keep front end mobile jib shearing blade 6 and secondary bar shearing blade 5 to be closure state before this utility model uses.Shearing blade and connecting rod are passed knee joint operation on skin otch, enter knee joint, under Arthroscopy auxiliary, determine the Meniscectomy position.Press secondary bar handle 1, it is drawn close to mobile jib handle 2, secondary bar 3 slides backward along the chute of mobile jib 4, drives the secondary bar shearing blade 5 and mobile jib shearing blade 6 closures of its front end, shears the meniscal tissue that sawtooth is fixing and interlock need to be removed of edge on shearing blade.When secondary bar handle 1 and mobile jib handle 2 separately, secondary bar 3 is along mobile jib 4 chutes to front slide, the secondary bar shearing blade 5 that drives its front end separates with mobile jib shearing blade 6, completes a complete work process.
Claims (5)
1. arcuate serrated scissors meniscus dresser, combined by handle, chute connecting rod, arcuate serrated shearing blade, it is characterized in that being the rifle tong-like, ring-shaped handle connects mobile jib and secondary bar, mobile jib and secondary bar front end are shearing blade, make secondary bar move forward and backward by the handle activity, drive the switching of front end shears.
2. arcuate serrated scissors meniscus dresser according to claim 1 is characterized in that mobile jib in connecting rod with the spill chute, and secondary bar is positioned at the chute of mobile jib.
3. arcuate serrated scissors meniscus dresser according to claim 1, is characterized in that the shearing blade of mobile jib and secondary bar front end is 45 degree circular arcs.
4. arcuate serrated scissors meniscus dresser according to claim 1, is characterized in that the shearing edge of mobile jib and secondary bar front end shearing blade is serrulate.
5. arcuate serrated scissors meniscus dresser according to claim 1, is characterized in that the shearing blade of mobile jib maintains static, and the shearing blade of secondary bar can be with the folding of handle freedom of movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263965 CN203263514U (en) | 2013-05-15 | 2013-05-15 | Arc sawtooth shear type meniscus trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263965 CN203263514U (en) | 2013-05-15 | 2013-05-15 | Arc sawtooth shear type meniscus trimmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203263514U true CN203263514U (en) | 2013-11-06 |
Family
ID=49494023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320263965 Expired - Lifetime CN203263514U (en) | 2013-05-15 | 2013-05-15 | Arc sawtooth shear type meniscus trimmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203263514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230298A (en) * | 2013-05-15 | 2013-08-07 | 向川 | Arc-shaped sawtooth shear type meniscus trimmer |
-
2013
- 2013-05-15 CN CN 201320263965 patent/CN203263514U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230298A (en) * | 2013-05-15 | 2013-08-07 | 向川 | Arc-shaped sawtooth shear type meniscus trimmer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |