CN201453320U - Spine cutter - Google Patents
Spine cutter Download PDFInfo
- Publication number
- CN201453320U CN201453320U CN 200920078024 CN200920078024U CN201453320U CN 201453320 U CN201453320 U CN 201453320U CN 200920078024 CN200920078024 CN 200920078024 CN 200920078024 U CN200920078024 U CN 200920078024U CN 201453320 U CN201453320 U CN 201453320U
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- CN
- China
- Prior art keywords
- spinal column
- sickle
- wire saw
- spine
- tumor
- 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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Abstract
The utility model provides a spine cutter, which is characterized by comprising a wire saw formed by enwinding 1 to 10 wires with steel teeth. Two ends of the wire saw are provided with protective sleeves. The spine cutter has the advantages of easy operation and high safety.
Description
Technical field
This utility model relates to a kind of spinal column sickle, belongs to medical instruments field.
Background technology
Tumor of spine is because the complexity of anatomy of spine structure is adjoined spinal cord, and tumor normal with important organ and trunk adhesion on every side, operation is the difficulty height of excision thoroughly, intraoperative blood loss is big, post-operative complication is many, relapse rate, disable, the fatality rate height; Recently because to the raising of the medical level of cancer, breast carcinoma, pulmonary carcinoma, primary tumo(u)rs such as carcinoma of prostate have obtained effective treatment, but isolated metastasis (metastases) causes patient to disable, cause death because of can not get thoroughly treatment, and nearly 30-40% can find that spinal column shifts in patient's postmortem of cancer mortality, and wherein about 50% metastatic tumor derives from breast carcinoma, pulmonary carcinoma, carcinoma of prostate.At present more state's internal therapy tumor of spine is taked to look at straight down and is struck off or progressively sting the method for removing the vertebral body of getting involved is excised, cause sending out and recurring of tumor easily, do not meet the surgical oncology principle, often the situation that occurs is exactly: former tumor of spine causes disabling, causes death because of recurrence, complication etc., and isolated transitivity tumor of spine causes patient's five year survival rate, life quality to descend because of can not get effectively treatment.
En bloc resection is emphasized tumor is done as a whole excision as the important operation theory of tumor of spine surgery, and tumor resection and pseudocapsule thereof are carried out in operation as far as possible in the normal structure outside tumor.A series of relevant documents and materials show that its postoperative recurrence rate is far below simple intralesional excision.
But the scroll saw sickle surface that operation is at present used is crude, hardness is too big, be easy to damage dura mater and spinal cord, and the operating process inconvenience is easy to generate incarceration and phenomenon of rupture, carries out en bloc resection when operation clinical, be used to cut off pedicle of vertebral arch and intervertebral disc, to the line style sickle itself, its sharp property is less demanding, and its pliability, processing safety are required than higher.In addition, because spinal column regression, deformity of spine etc. need be opened canalis spinalis, perhaps osteotomy, instruments such as electric mill brill commonly used because the cost height is easy to generate the high-temperature damage spinal cord during operation, therefore need a kind of special sickle of invention.
Summary of the invention
The purpose of this utility model is a kind of special sickle of invention, on the basis of tumor of spine en bloc resection technology, is used for the thorough excision of spinal column primary tumo(u)r and metastatic tumo(u)r, this operating theater instruments easy operating, and safety also further improves.
In order to achieve the above object, the technical solution of the utility model provides a kind of spinal column sickle, it is characterized in that, comprises that the 1-10 thigh has the wire saw that the steel wire of steel-tooth is wound in, and the two ends of wire saw are provided with protective jacket.
Further, the diameter of described wire saw is 0.1-2mm, and length is 10-500mm.
The winding density of described steel wire is 1-10 circle/cm.
The density of described steel-tooth is 1-50/cm.
The hardness of described wire saw is less than 400HV.
The utility model has the advantages that easy operating, safe.
Description of drawings
Fig. 1 is a spinal column sickle structural representation;
Fig. 2 is a spinal column sickle partial enlarged drawing;
Fig. 3 is the sketch map of spinal column resection operation.
The specific embodiment
Specify this utility model below in conjunction with embodiment.
Embodiment
As shown in Figure 1, be spinal column sickle structural representation, Fig. 2 is its partial enlarged drawing, and described spinal column sickle comprises the wire saw 2 that 2 strands of steel wires that have a steel-tooth 3 are wound in the winding density of 5 circle/cm, and the two ends of wire saw 2 are provided with protective jacket 1.The diameter of described wire saw 2 is 1mm, and length is 200mm.The density of described steel-tooth 3 is 25/cm.The hardness of described wire saw 2 is less than 400HV (Vickers hardness) or 24HRC (Rockwell hardness).
As shown in Figure 3, be the sketch map of spinal column resection operation, during operation; earlier by the carefully free spinal column Front Frame in rear; the vertebra of will getting involved joint is separated with anterior mediastinum organ, notes protecting vital tissue organ (aorta, esophagus on every side; azygos vein; thoracic duct etc.), the flat dura mater of vertebra water saving of getting involved is carefully separated with the vertebral body rear wall with nerve root, pass spinal column sickle 4; by the sawed-off vertebral body of intervertebral disc level, take out the disease vertebra by the rear around spinal cord again.Also can under protective sleeve 1 protection, pass, carry out vertebral plate and cut, row enlargement of cervical canal, the perhaps orthopaedy of spinal column osteotomy by under the vertebral plate.
Claims (5)
1. a spinal column sickle is characterized in that, comprises that the 1-10 thigh has the wire saw (2) that the steel wire of steel-tooth (3) is wound in, and the two ends of wire saw (2) are provided with protective jacket (1).
2. a kind of spinal column sickle as claimed in claim 1 is characterized in that the diameter of described wire saw (2) is 0.1-2mm, and length is 10-500mm.
3. a kind of spinal column sickle as claimed in claim 1 is characterized in that the winding density of described steel wire is 1-10 circle/cm.
4. a kind of spinal column sickle as claimed in claim 1 is characterized in that, the density of described steel-tooth (3) is 1-50/cm.
5. a kind of spinal column sickle as claimed in claim 1 is characterized in that the hardness of described wire saw (2) is less than 400HV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920078024 CN201453320U (en) | 2009-07-09 | 2009-07-09 | Spine cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920078024 CN201453320U (en) | 2009-07-09 | 2009-07-09 | Spine cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201453320U true CN201453320U (en) | 2010-05-12 |
Family
ID=42380661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920078024 Expired - Fee Related CN201453320U (en) | 2009-07-09 | 2009-07-09 | Spine cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201453320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525667A (en) * | 2012-01-09 | 2012-07-04 | 莱芜钢铁集团有限公司医院 | Plaster saw special for orthodontics |
-
2009
- 2009-07-09 CN CN 200920078024 patent/CN201453320U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525667A (en) * | 2012-01-09 | 2012-07-04 | 莱芜钢铁集团有限公司医院 | Plaster saw special for orthodontics |
| CN102525667B (en) * | 2012-01-09 | 2014-12-03 | 莱芜钢铁集团有限公司医院 | Plaster saw special for orthodontics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20130709 |