CN2439262Y - Vertebral lamina bone knife for spinal column operation - Google Patents
Vertebral lamina bone knife for spinal column operation Download PDFInfo
- Publication number
- CN2439262Y CN2439262Y CN 00230913 CN00230913U CN2439262Y CN 2439262 Y CN2439262 Y CN 2439262Y CN 00230913 CN00230913 CN 00230913 CN 00230913 U CN00230913 U CN 00230913U CN 2439262 Y CN2439262 Y CN 2439262Y
- Authority
- CN
- China
- Prior art keywords
- vertebral
- cutting edge
- handle
- vertebral plate
- column operation
- 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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- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model relates to a vertebral plate bone knife for a vertebral column operation, which comprises a handle, a knife rod, a cutting edge which is positioned on the lower end of the knife rod. The vertebral plate bone knife for a vertebral column operation is characterized in that a blocking safety table is arranged above the cutting edge, and a C-shaped handle ring is arranged on the position of the handle. The vertebral plate bone knife for a vertebral column operation has the advantages of simple structure, easy manufacture, convenient operation, and safe use. The depth of the cutting edge knocking into a vertebral plate can be controlled. The vertebral plate bone knife for a vertebral column operation not only can be favorable for completely removing the vertebral plate with full thickness to open a vertebral pipe, but also can greatly reduce the damage of spinal cord, nerves, and a hard vertebral film; meanwhile, the C-shaped handle ring on the position of the handle can also be used for reducing torsional force to prevent the handle from sliding. Force is saved, and the vertebral plate bone knife for a vertebral column operation is convenient to operate in an operation.
Description
This utility model relates to a kind of medical apparatus and instruments, especially a kind of vertebral lamina osteotome that is applicable to spinal surgery.
At present, thereby be used for the tissue that spinal surgery excision vertebral plate appears spinal cord, nerve root and pathological changes in the vertebral plate pipe, the most frequently used apparatus is narrow sword osteotome of ordinary straight shape or laminectomy rongeur.The narrow sword osteotome of ordinary straight shape is driven into the degree of depth in the vertebral plate owing to can not estimate blade when cutter hits vertebral plate, be driven into deeply, and spinal cord, nerve root or cauda equina nerve etc. under the blade easy damaged vertebral plate cause the paralysis of patient's limbs; Be driven into shallowly, and only can excise the shallow-layer sclerotin of vertebral plate, be difficult for opening canalis spinalis and nerve root canal.Simultaneously, when revolving the sled sclerotin, because sclerotin is hard, handle skids easily, increases the difficulty of operation.When the application laminectomy rongeur was stung except that vertebral plate, the jaw of rongeur front end one side need enter in the canalis spinalis, when in merging spinal canal stenosis or canalis spinalis adhesion being arranged, easily extruding or clamp and Spinal Cord, nerve root, spinal dura mater, cause secondary damage, for this reason, need the new vertebral lamina osteotome of design.
A kind of energy control that the purpose of this utility model designs at above-mentioned existing in prior technology weak point just is driven into the vertebral plate degree of depth and can increases the handle arm of force to be saved hand strength, prevents the vertebral lamina osteotome that handle skids, this osteotome is simple in structure, esy to use, safe and reliable, can reduce spinal cord and neural damage chance in operation.
The purpose of this utility model reaches by following proposal: this spinal operation vertebral lamina osteotome comprises handle, knife bar and is positioned at the cutting edge of knife bar lower end, is provided with to stop safety board above cutting edge.
This utility model is provided with C shape ring at the handle place, its objective is to prevent to skid, increase torsion; The section of knife bar is a rectangular configuration in this utility model, at the cutting edge position of its front end to stopping that the distance between the safety board is 4～8 millimeters, this length is suitable with the degree of depth that need be driven in the vertebral plate, can effectively prevent the spinal cord, nerve root or the cauda equina nerve that damaged deeply under the vertebral plate because of being driven into; In addition, the described safety board that stops can be located at both sides, cutting edge top, also can be located at cutting edge top one side, stops that the upper edge of safety board is concordant with the knife bar surface.
When using this utility model to revolve sled vertebral plate sclerotin, twisting resistance is realized ring by " C " shape of dorsal side, reduces the twisting resistance of palm, prevents that handle from skidding, and saves strength.During hammering osteotome excision vertebral plate, it is dark excessively that the safety block platform of cutting edge top can prevent that blade is driven into vertebral plate, the following spinal cord of damage vertebral plate, nerve root etc., also can avoid since osteotome be driven into shallow, only can excise the shallow-layer sclerotin of vertebral plate, the defective of increase operating difficulty.This utility model also has simple in structure, easy to manufacture, easy to operate, safe and reliable advantage.
The drawing of accompanying drawing is described as follows:
Fig. 1 is a structural front view of the present utility model.
Fig. 2 is the left view of Fig. 1.
This utility model is described further below in conjunction with accompanying drawing:
As shown in Figure 1 and Figure 2: this spinal operation vertebral lamina osteotome comprises handle (1), knife bar (3) and is positioned at the cutting edge (4) of knife bar lower end, both sides are provided with and stop safety board (5) above cutting edge, the upper edge that stops safety board (5) is concordant with knife bar (3) surface, cutting edge is 6 millimeters to the distance that stops safety board, locate to be provided with C shape ring (2) at handle (1), the end face of knife bar (3) is a rectangle.
Concrete use is as follows: with bone hammer hammering osteotome upper end gently, cutting edge is driven into vertebral plate, until stopping that the platform retaining makes cutting edge can not continue to be driven into the vertebral plate depths on the surface of vertebral plate, the left hand palm is held handle, the back of the hand props up " C " shape ring, rotary handle, thus make the vertebral plate marginal bone break away from original position, cut-out or whole vertebral plate gradually successively.
Claims (7)
1, a kind of spinal operation vertebral lamina osteotome, it comprises handle (1), knife bar (3) and is positioned at the cutting edge (4) of knife bar lower end, it is characterized in that: be provided with above cutting edge and stop safety board (5).
2, spinal operation vertebral lamina osteotome according to claim 1 is characterized in that: locate to be provided with C shape ring (2) at handle (1).
3, spinal operation vertebral lamina osteotome according to claim 1 is characterized in that: cutting edge (4) is 4～8 millimeters to the distance that stops safety board (5).
4, spinal operation vertebral lamina osteotome according to claim 1 is characterized in that: the section of knife bar (3) is a rectangle.
5, spinal operation vertebral lamina osteotome according to claim 1 is characterized in that: both sides are provided with and stop safety board (5) above cutting edge.
6, spinal operation vertebral lamina osteotome according to claim 1 is characterized in that: a side is provided with and stops safety board (5) above cutting edge.
7, spinal operation vertebral lamina osteotome according to claim 1 is characterized in that: the upper edge that stops safety board (5) is concordant with knife bar (3) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230913 CN2439262Y (en) | 2000-09-19 | 2000-09-19 | Vertebral lamina bone knife for spinal column operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230913 CN2439262Y (en) | 2000-09-19 | 2000-09-19 | Vertebral lamina bone knife for spinal column operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2439262Y true CN2439262Y (en) | 2001-07-18 |
Family
ID=33593922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00230913 Expired - Fee Related CN2439262Y (en) | 2000-09-19 | 2000-09-19 | Vertebral lamina bone knife for spinal column operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2439262Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575220A (en) * | 2019-09-24 | 2019-12-17 | 青岛大学附属医院 | Dedicated ring saw device in backbone scope big passageway system |
-
2000
- 2000-09-19 CN CN 00230913 patent/CN2439262Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575220A (en) * | 2019-09-24 | 2019-12-17 | 青岛大学附属医院 | Dedicated ring saw device in backbone scope big passageway system |
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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 |