CN202665670U - Rotatable connecting rod for spinal fixation - Google Patents
Rotatable connecting rod for spinal fixation Download PDFInfo
- Publication number
- CN202665670U CN202665670U CN 201220275557 CN201220275557U CN202665670U CN 202665670 U CN202665670 U CN 202665670U CN 201220275557 CN201220275557 CN 201220275557 CN 201220275557 U CN201220275557 U CN 201220275557U CN 202665670 U CN202665670 U CN 202665670U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- pitman
- rotatable
- rotatable connecting
- spinal column
- 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 - Lifetime
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- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The utility model belongs to the field of medical instruments, and particularly relates to a rotatable connecting rod. The rotary connecting rod is characterized in that one or a plurality of rotatable structures are arranged on the connecting rod and capable of rotating by a certain angle radially. At least one of rotatable structures of the rotatable connecting rod can rotate within 360 degrees radially, so that the spine of a patient after operation can twist in a certain angle, and postoperative flexibility of the patient is improved. The rotatable connecting rod is reasonable in structure, easy to manufacture and perfect in effect.
Description
Technical field
This utility model belongs to medical mechanical domain, specifically a kind of for spinal column fixing be rotatably connected rod.
Background technology
Spinal column is very complicated in skeleton, and it comprises that surpassing 20 saves interconnective skeleton, has the neural neural key components of countless peripheries and near loop body to hold and to protect.Although vertebra is very complicated, it has a kind of very flexible structure, it can wide-angle ground crooked and almost can reverse along any direction.Yet heredity or posteriori asymmetric, outer damage, long-term anxiety, tumor and disease can cause spinal lesion, and scope or threat that these pathological changes can constrained motions are contained in intravertebral nervous system.At present, mainly this fixing by realizing at implantable artificial assembly within the spinal column or on it.And these artificial components mainly contain the parts such as pitman and pedicle nail, housing pin, cross-connecting apparatus.Traditional pitman is an optical wand, a headband hexagon prism.The parts such as pitman and pedicle nail, housing pin, cross-connecting apparatus are used, and its operation principle is: pitman is put into pedicle nail, and pitman is parallel with the axis of spinal column, housing pin is screwed in pedicle nail fix pitman.By such fixed form, can keep the relative stability of spinal fracture or dislocation place, make the patient that basic sitting walking function can be arranged.But itself does not possess the radial rotary function traditional pitman, such as the twist motion of operation in patients posterior spinal, makes pitman produce certain internal stress, thereby causes that pitman is loosening, the signs such as distortion or fracture.This post-operative recovery to the patient is very disadvantageous.In view of traditional pitman has significant limitation in clinical use, so pitman is made radially rotatablely, eliminate pitman because reversing the internal stress that produces, will be ideal selection clinically.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes traditional pitman, for the surgeon spinal column is fixed with orthopedic operation in, provide a kind of radially rotatable for spinal column fixing be rotatably connected rod.
The technical scheme that this utility model adopts is:
A kind of for spinal column fixing be rotatably connected rod, it is characterized in that: at pitman one or several rotary structures are set, rotary structure is at radially rotatable certain angle.
This utility model is rotatably connected rod and has radially 360 ° of rotations at least, can make the patient after surgery spinal column can carry out reversing of certain angle, thereby increase flexibility ratio behind the operation in patients.This utility model is rational in infrastructure, makes simple, satisfactory for result.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment.
The specific embodiment
Embodiment as shown in Figure 1, a kind of for spinal column fixing be rotatably connected rod, comprise rotary structure 1, Connection Block 2, pin 3 and be fixedly connected with rod 4, it is characterized in that: rotary structure 1, be fixedly connected with rod 4 and all pack in the Connection Block 2 by the mode of shaft hole matching, Connection Block 2 be fixedly connected with rod 4 and be fixed together by pin 3, thereby make rotary structure 1 realize radially 360 ° of rotations.
Claims (2)
- One kind be used for spinal column fixing be rotatably connected rod, it is characterized in that: at pitman one or several rotary structures are set, rotary structure is radially rotatable.
- According to claim 1 for spinal column fixing be rotatably connected rod, it is characterized in that: the rotary structure of pitman has one section radially 360 ° of rotation at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220275557 CN202665670U (en) | 2012-06-08 | 2012-06-08 | Rotatable connecting rod for spinal fixation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220275557 CN202665670U (en) | 2012-06-08 | 2012-06-08 | Rotatable connecting rod for spinal fixation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202665670U true CN202665670U (en) | 2013-01-16 |
Family
ID=47486614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220275557 Expired - Lifetime CN202665670U (en) | 2012-06-08 | 2012-06-08 | Rotatable connecting rod for spinal fixation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202665670U (en) |
-
2012
- 2012-06-08 CN CN 201220275557 patent/CN202665670U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG CANWELL MEDICAL CO., LTD. Free format text: FORMER NAME: KEHUI MEDICAL EQUIPMENT CO., LTD., ZHEJIANG |
|
| CP03 | Change of name, title or address |
Address after: 321016 Zhejiang Province, Jinhua city Wucheng District Xianghua Street No. 466 Patentee after: Zhejiang Ke Hui Medical Treatment Equipment Co., Ltd Address before: 321016 Zhejiang city of Jinhua province Xian No. 466 South Street Zhejiang Kehui Medical Equipment Co Ltd Patentee before: Zhejiang Canwell Medical Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |
|
| CX01 | Expiry of patent term |