CN201085671Y - Intervertebral fusion device with adjustable double threaded screw - Google Patents
Intervertebral fusion device with adjustable double threaded screw Download PDFInfo
- Publication number
- CN201085671Y CN201085671Y CNU2007201782393U CN200720178239U CN201085671Y CN 201085671 Y CN201085671 Y CN 201085671Y CN U2007201782393 U CNU2007201782393 U CN U2007201782393U CN 200720178239 U CN200720178239 U CN 200720178239U CN 201085671 Y CN201085671 Y CN 201085671Y
- Authority
- CN
- China
- Prior art keywords
- thread
- screw
- double threaded
- threaded screw
- double
- 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
Links
Images
Abstract
The utility model discloses an adjustable interbody fusion cage with a double-thread screw rod, which belongs to the internal spine fixture technical field. The utility model comprises a double-thread screw rod, two end accessories and a locking screw; the double-thread screw rod is hollow and the threads on both ends are a left screw thread and a right screw thread; a truncated cone whose lateral side is provided with a circular hole is arranged in the middle of the double-thread screw rod; the two end accessories are shaped like circular tubes and are provided with a left inner screw thread and a right inner screw thread respectively; the two end accessories are connected with the double-thread screw rod through the threads; the external end surfaces of the two end accessories are provided with sharp looseness-proof teeth; the two end accessories are provided with locking screw holes; the locking screw is screwed into the locking screw holes to lock the end accessories; the double-thread screw rod and the two end accessories are provided with circular holes. The height of the adjustable interbody fusion cage with a double-thread screw rod can be accurately adjusted during the surgery to be applicable to vertebral positions with different damaged conditions; the utility model which is convenient to be adjusted can shorten the surgery time and reduce the suffering of patients.
Description
Technical field
The utility model discloses a kind of double threaded screw adjustable type Invasive lumbar fusion device, belong to internal fixation of spine thing technical field.
Background technology
In daily life, completely or the case that causes spinal vertebral to damage owing to reasons such as tumor, fracture, infection of part happen occasionally.When these patients of treatment, the mode that adopts is to implant the Invasive lumbar fusion device of a regular length between the vertebral body that damages at present, makes osseous tissue produce creeping substitution, thereby repairs the vertebral body that damages.The Invasive lumbar fusion device of this regular length is pre-prepd before patient treatment, according to the physical length finishing Invasive lumbar fusion device that damages vertebral body, then it is implanted the vertebral body position of damaging in operative treatment.In operation, the complicated operation of finishing Invasive lumbar fusion device, the used time is long, brings misery to the patient.
The utility model content
The purpose of this utility model is a kind of adjustable type Invasive lumbar fusion device of invention, can be according to the needs of patient treatment, and the length of flexible adjustment Invasive lumbar fusion device shortens operating time, reduces the patient suffering.
The technical solution adopted in the utility model is: be made up of a double threaded screw, two end accessories and lock-screw, double threaded screw is a hollow rod shape, and its two ends screw thread is respectively left-hand thread and right-hand thread, and its middle part has round platform, and the round platform outside has circular hole; Two end accessories are the pipe shape, have left female thread and right female thread respectively, two end accessories are connected with double threaded screw with screw thread, have the locking tooth of canine tooth shape on two end accessory outer faces, have the locking screw on two end accessories, lock-screw is screwed in the locking screw, the locking end accessory; Have circular hole on double threaded screw and two end accessories.
The outer face of described end accessory is the inclined plane, and its angle of inclination is 5 ° or 8 °.
The designed double threaded screw of this utility model can be adjusted Invasive lumbar fusion device and have following advantage:
1. the height of double threaded screw adjustable type Invasive lumbar fusion device can accurately be adjusted, and can adapt to the vertebral body position of different damaged conditions.When operation, double threaded screw adjustable type Invasive lumbar fusion device is put into the vertebral body position that patient's spinal column damages, utilize the double threaded screw on the driving lever rotation double threaded screw adjustable type Invasive lumbar fusion device, driving two end accessories moves to two, the vertebral body size of damaging on the height of double threaded screw adjustable type Invasive lumbar fusion device and the patient's spinal column is fitted like a glove, utilize lock-screw with two end accessory locking positions then, the vertebral body that damages in the promptly available double threaded screw adjustable type Invasive lumbar fusion device replacement patient spinal column.
2. double threaded screw adjustable type Invasive lumbar fusion device is easy to adjust, saves time, and can shorten operating time, reduces the patient suffering.
3. double threaded screw adjustable type Invasive lumbar fusion device volume is little, saves the space, can flexible movement adjust riding position.
4. double threaded screw adjustable type Invasive lumbar fusion device can make corrective surgery position otch little, makes the operation simple and fast, and the destruction that the patient is caused is few.
5. double threaded screw adjustable type Invasive lumbar fusion device has the anatomical form design of good uniqueness.The locking tooth of canine tooth shape on two end accessories can with patient's spinal column strong bonded, prevent that double threaded screw adjustable type Invasive lumbar fusion device breaks away from normal operation riding position.The upper surface of one or two end accessory is the inclined plane, to adapt to the different damaged locations of patient's spinal column, makes double threaded screw adjustable type Invasive lumbar fusion device have various transmutability, substituting.Double threaded screw adjustable type Invasive lumbar fusion device is rational in infrastructure, only needs two inserters and a small amount of attachment can finish operation technique.
6. double threaded screw adjustable type Invasive lumbar fusion device is a hollow pipe shape, have circular hole on its tube wall, in hollow pipe and circular hole, can fill broken bone, help the osseous tissue creeping substitution, newly-generated osseous tissue contains double threaded screw adjustable type Invasive lumbar fusion device, quickens to merge.
Description of drawings
Fig. 1 is the structural representation of double threaded screw adjustable type Invasive lumbar fusion device
Fig. 2 is the left view of Fig. 1
Fig. 3 is the vertical view of Fig. 1
Fig. 4 is the structural representation of another kind of double threaded screw adjustable type Invasive lumbar fusion device
Fig. 5 is the left view of Fig. 4
The specific embodiment
The structural representation of the described double threaded screw adjustable type of present embodiment Invasive lumbar fusion device is seen Fig. 1, Fig. 2 and shown in Figure 3.
Double threaded screw adjustable type Invasive lumbar fusion device is made up of a double threaded screw 1, two end accessories 2 and lock-screw 3, and double threaded screw 1 is a hollow rod shape, and its two ends screw thread is respectively left-hand thread and right-hand thread, and its middle part has round platform, and the round platform outside has circular hole 4; Two end accessories 2 are the pipe shape, have left female thread and right female thread respectively, two end accessory 2 usefulness screw threads are connected with double threaded screw 1, have the locking tooth 5 of canine tooth shape on two end accessory 2 outer faces, have locking screw 6 on two end accessories 2, lock-screw 3 is screwed in the locking screw 6, locking end accessory 2; Have circular hole 7 on double threaded screw 1 and two end accessories 2.
When double threaded screw adjustable type Invasive lumbar fusion device uses, with the locking screw 6 on the inserter link department enclosure 2, double threaded screw adjustable type Invasive lumbar fusion device is sent into the position that patient's spinal column need be treated, insert with driving lever in the circular hole 4 in the round platform outside, double threaded screw 1 middle part, rotate double threaded screw 1, driving two end accessories 2 moves to two, double threaded screw adjustable type Invasive lumbar fusion device is strutted, two locking teeth 5 of the canine tooth shape on the end accessory 2 are fitted like a glove with patient's spinal column, utilize lock-screw 3 with two end accessory 2 locking positions then, the vertebral body that damages in the promptly available double threaded screw adjustable type Invasive lumbar fusion device replacement patient spinal column.Have circular hole 7 on double threaded screw 1 and two end accessories 2, can fill broken bone or bone cement in the circular hole 7, help the osseous tissue creeping substitution, newly-generated osseous tissue contains double threaded screw adjustable type Invasive lumbar fusion device, quickens to merge.
The height of double threaded screw adjustable type Invasive lumbar fusion device can accurately be adjusted, and can adapt to the vertebral body position of different damaged conditions, and is easy to adjust, saves time, and can shorten operating time, reduces the patient suffering.Double threaded screw adjustable type Invasive lumbar fusion device volume is little, saves the space, can flexible movement adjust riding position, makes the operation simple and fast, and the destruction that the patient is caused is few.
The structural representation of the described double threaded screw adjustable type of present embodiment Invasive lumbar fusion device is seen Fig. 4 and shown in Figure 5.
The structure of present embodiment described double threaded screw adjustable type Invasive lumbar fusion device and embodiment 1 described double threaded screw adjustable type Invasive lumbar fusion device is basic identical, and difference is that the length of double threaded screw 1 and two end accessories 2 is longer, can substitute bigger vertebral body.Another difference is that the end face of end accessory 2 is skewed, and its angle of inclination is 5 °, to adapt to the position that patient's spinal column needs are treated.What Fig. 4 and Fig. 5 were represented is two states that end accessory 2 stretches out.The described double threaded screw adjustable type of present embodiment Invasive lumbar fusion device operation principle is described identical with embodiment 1.
Claims (2)
1. double threaded screw adjustable type Invasive lumbar fusion device, it is characterized in that: be made up of a double threaded screw, two end accessories and lock-screw, double threaded screw is a hollow rod shape, and its two ends screw thread is respectively left-hand thread and right-hand thread, its middle part has round platform, and the round platform outside has circular hole; Two end accessories are the pipe shape, have left female thread and right female thread respectively, two end accessories are connected with double threaded screw with screw thread, have the locking tooth of canine tooth shape on two end accessory outer faces, have the locking screw on two end accessories, lock-screw is screwed in the locking screw, the locking end accessory; Have circular hole on double threaded screw and two end accessories.
2. double threaded screw adjustable type Invasive lumbar fusion device according to claim 1, so its feature also exists: the outer face of described end accessory is the inclined plane, its angle of inclination is 5 ° or 8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201782393U CN201085671Y (en) | 2007-09-28 | 2007-09-28 | Intervertebral fusion device with adjustable double threaded screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201782393U CN201085671Y (en) | 2007-09-28 | 2007-09-28 | Intervertebral fusion device with adjustable double threaded screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201085671Y true CN201085671Y (en) | 2008-07-16 |
Family
ID=39633261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201782393U Expired - Fee Related CN201085671Y (en) | 2007-09-28 | 2007-09-28 | Intervertebral fusion device with adjustable double threaded screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201085671Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266929A (en) * | 2015-11-05 | 2016-01-27 | 同济大学 | Mountable allogenous cortical bone axial fusion device |
| US9877845B2 (en) | 2013-01-16 | 2018-01-30 | DePuy Synthes Products, Inc. | Intervertebral cage with anterior fixation and stabilization |
| CN110141403A (en) * | 2019-05-24 | 2019-08-20 | 中南大学湘雅三医院 | Telescopic vertebrae mixer |
-
2007
- 2007-09-28 CN CNU2007201782393U patent/CN201085671Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9877845B2 (en) | 2013-01-16 | 2018-01-30 | DePuy Synthes Products, Inc. | Intervertebral cage with anterior fixation and stabilization |
| CN105266929A (en) * | 2015-11-05 | 2016-01-27 | 同济大学 | Mountable allogenous cortical bone axial fusion device |
| CN105266929B (en) * | 2015-11-05 | 2018-08-28 | 同济大学 | A kind of composable allosome cortex axis of bone is to fusion device |
| CN110141403A (en) * | 2019-05-24 | 2019-08-20 | 中南大学湘雅三医院 | Telescopic vertebrae mixer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201085670Y (en) | Intervertebral fusion device with adjustable angular wheel | |
| US7500992B2 (en) | Distractable body augmenter capable of being planted through a pedicle for vertebral body reconstruction | |
| US20070270954A1 (en) | Human bone substitutional implant | |
| KR101545390B1 (en) | Apparatus for reinforcing bone and tools for mounting the same | |
| CN202386760U (en) | Interbody fusion cage | |
| CN203841856U (en) | Cervical vertebra fusion device | |
| CN204683847U (en) | Expansible Invasive lumbar fusion device | |
| CN104546100B (en) | Dynamic compression locking plate for treatment of femoral neck fracture | |
| CN106890037A (en) | One kind can extend artificial vertebral body in vivo | |
| CN201085671Y (en) | Intervertebral fusion device with adjustable double threaded screw | |
| CN104783935B (en) | Expansible Invasive lumbar fusion device | |
| US20060025860A1 (en) | Body augmenter capable of being planted through a pedicle for vertebral body reconstruction | |
| CN202113152U (en) | Universal pourable pedicle screw | |
| CN201085669Y (en) | Intervertebral fusion device with adjustable screwed cap | |
| CN104814816A (en) | Self-stabilization type extreme lateral approach intervertebral fusion cage | |
| CN201602866U (en) | Adjustable vertebral body replacement fusion cage | |
| US11000326B1 (en) | Orthopedic fastener and associated systems and methods | |
| CN102488574A (en) | Interbody fusion cage | |
| CN106073952A (en) | A kind of vertebral body booster treating compression fracture of vertabral body | |
| CN112773572B (en) | Femoral head internal support prosthesis and manufacturing method thereof | |
| US20170100252A1 (en) | Temporomandibular joint implants and methods of treating a temporomandibular joint | |
| CN209172474U (en) | Orthopedic screw is fixed in lumbar vertebral posterior | |
| CN206138242U (en) | Centrum humidifier of treatment centrum compressibility fracture | |
| CN201394068Y (en) | Femoral head necrosis bracket | |
| CN208228989U (en) | A kind of vertebral column internal fixation nail stick system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 Termination date: 20160928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |