CN202699262U - Minimally invasive sleeve type expander and extension arm pedicle screw - Google Patents
Minimally invasive sleeve type expander and extension arm pedicle screw Download PDFInfo
- Publication number
- CN202699262U CN202699262U CN 201220337828 CN201220337828U CN202699262U CN 202699262 U CN202699262 U CN 202699262U CN 201220337828 CN201220337828 CN 201220337828 CN 201220337828 U CN201220337828 U CN 201220337828U CN 202699262 U CN202699262 U CN 202699262U
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- screw
- extension arm
- hole
- minimally invasive
- wicresoft
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Abstract
The utility model relates to a minimally invasive sleeve type expander and an extension arm pedicle screw, belonging to the field of medical instruments. The minimally invasive sleeve type expander and the extension arm pedicle screw consist of the minimally invasive sleeve type expander (1) and the extension arm pedicle screw (2), and are characterized in that the minimally invasive sleeve type expander (1) consists of a pin (3), a screw stem (4), a nut (5), a spring leaf (6), a slotted pan head screw (7), a left handle (8), a right handle (9), a spring (10), a shoulder screw (11), a rivet (12), a crossing plate (13), a pin shaft (14) and an expanding head (16), wherein the extension arm pedicle screw (2) consists of a connector (19), a screw plug (20), a pressing block (21) and a screw body (22). Firstly, the azimuth and the depth for implantation of the pedicle screw are determined, percutaneous puncture and positioning, catheter reaming and screw implantation are performed to impellent expansion restoration, and the screw plug (20) is screwed up.
Description
Technical field
This utility model relates to the telescopic dilator of a kind of Wicresoft and extension arm pedicle nail, belongs to medical instruments field, is applicable to lumbar degenerative disc disease, lumbar spondylolisthesis.
Background technology
Minimally Invasive Surgery refers to that a kind of new technique of performing a surgical operation by endoscopies such as peritoneoscope, thoracoscopies, Minimally Invasive Surgery have that wound is little, pain light, recover the superiority such as fast in human body, Minimally Invasive Surgery more pays attention to alleviating patient's misery.For example the about 1cm of the most ripe LC:LC operative incision that becomes " goldstandard " does not cut off muscle, and ventral breathing recovers early, and is attractive in appearance, and postoperative abdominal motion and sensation be almost without affecting, and pulmonary complication is far below through the abdomen cholecystectomy.Along with the progress of science and technology, " Wicresoft " this concept has been deep into operating various field, and monitoring system also is not limited only to endoscope, and mostly is to adopt the mode that gets involved, such as spinal surgery, orthopaedics.But because the restriction of national economy level, some cost many and the large operation of difficulty is difficult to popularize and promote for the moment, make the laparoscopic surgical aggregate level of China and international standard that larger gap be arranged.
China's minimally invasive spine surgical technic is started late, and the eighties in 20th century, microscopically Micro Lumbar Discectomy, percutaneous puncture CO2 laser vertebral pulp vaporization/, percutaneous puncture Chemonucleolysis etc. successively appear in China.The minimally invasive spine surgical technic is in China's fast development, but the minimally invasive spine surgical technic is carried out imbalance.
Summary of the invention
This utility model provides a kind of the have telescopic dilator of simple in structure, easy to operate Wicresoft and extension arm pedicle nail.
The technical solution of the utility model is as follows:
The telescopic dilator of Wicresoft and extension arm pedicle nail, formed by the telescopic dilator 1 of Wicresoft, extension arm pedicle nail 2, it is characterized in that: the telescopic dilator 1 of Wicresoft by pin 3, screw rod 4, nut 5, spring leaf 6, fluting coiled hair nail 7, a handle left side 8, the handle right side 9, spring 10, axial screw 11, rivet 12, cross board 13, bearing pin 14, screw 15, strut 16 and form; Extension arm pedicle nail 2 is comprised of adapter 19, plug screw 20, briquetting 21, rivet nut 22.
Screw rod 4 is shaft-like, and two flat horizontal surfaces are arranged, and the side is spline-simulating, right-hand member has sloping platform, and is porose, and pin 3 passes this hole and screw rod 4 links together, nut 5, screw rod 4 and dilator handle are connected connection, and locking mode adopts tooth bar locking to add the screw-threaded coupling mode that combines, and makes locking quick reliable.
A handle left side 8, the left end head has fluting, there is tooth bar at fluting middle part, with the engagement of screw rod 4 tooth bar places, regulates the dilator end and struts scope herein, the right-hand member head has stepped hole, by rivet 12 with strut 15 and cross board 12 link together.
Handle 9, the left end head has fluting, and is porose, is connected with screw rod 4, the right-hand member head has stepped hole, by rivet 12 with strut 16 and cross board 13 link together.
There is through hole at cross board 13 middle parts, and respectively there is through hole at two ends, and two ends are arcuation, and left end middle part fluting is furnished with two cross boards 13 during assembling, regulate the scope that struts of dilator.
Extension arm pedicle nail 2 can one direction in operative process or is multi-direction fixing, and operation technique is simple and convenient, and extension arm pedicle nail 2 can be designed plurality of specifications, selects during for operation.
By the diagnosis such as CT or X-ray vertebra disease before the art, determine surgery location, determine that used implant comprises pedicle nail size and quantity, under the guiding of X-ray examination or navigation system, implement operation: at first determine orientation and the degree of depth that pedicle nail is implanted, the percutaneous puncture location, the conduit reaming, core drill bottoming hole, tapping, plant nail, penetrate pitman, the pre-bending pitman, use the same method and implant other pedicle nails, be screwed into plug screw 20, after whole pre-locking, be inserted in respectively two sleeves of head of dilator on the pedicle nail, and sleeve bottom U-shaped opening snapped in pitman, implement distraction reduction according to clinical requirement, tighten plug screw 20, realize finally locking, go pedicle nail long-tail part, realize stable fixing function.
The help of X-ray examination or navigation system is to instruct the accurate implantation of pedicle nail in this technology utilization art; but do not need to destroy the normal anatomical structures of spinal column; reduce iatrogenic adjacent segmental instability; the less invasive techniques operative incision is little, and protection muscle and ligament normally adhere to epispinal, do not need to expose spinal column; lose blood few; safety, accurately implant pedicle nail, reduced the injury of traditional operation to human body, greatly reduced disease to the patient to the inconvenience that comes and painful.
The telescopic dilator of Wicresoft and extension arm pedicle nail have advantages of simple in structurely, easy to operate, economical and practical, are suitable for Orthopedic Clinical and apply.
Description of drawings
Fig. 1 is the telescopic dilator of Wicresoft of the present utility model and extension arm pedicle nail structure chart.
Fig. 2 is pin 3 structure charts of the present utility model.
Fig. 3 is screw rod 4 structure charts of the present utility model.
Fig. 4 is nut 5 structure charts of the present utility model.
Fig. 5 is the left view of spring leaf 6 of the present utility model.
Fig. 6 is that fluting coiled hair of the present utility model is followed closely 7 structure charts.
Fig. 7 is left 8 structure charts of handle of the present utility model.
Fig. 8 is right 9 structure charts of handle of the present utility model.
Fig. 9 is spring 10 fixed structure figure of the present utility model.
Figure 10 is axial screw 11 structure charts of the present utility model.
Figure 11 is rivet 12 structure charts of the present utility model.
Figure 12 is cross board 13 structure charts of the present utility model.
Figure 13 is bearing pin 14 structure charts of the present utility model.
Figure 14 is screw 15 structure charts of the present utility model.
Figure 15 is 16 structure chart that strut of the present utility model.
Figure 16 is 16 sleeve 17 structure charts that strut of the present utility model.
Figure 17 is 16 parallel opening bar 18 structure charts that strut of the present utility model.
Figure 18 is extension arm pedicle nail 2 structure charts of the present utility model.
Figure 19 is adapter 19 structure charts of the present utility model.
Figure 20 is plug screw 20 structure charts of the present utility model.
Figure 21 is briquetting 21 structure charts of the present utility model.
Figure 22 is rivet nut 22 structure charts of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
The telescopic dilator of Wicresoft and extension arm pedicle nail, formed by the telescopic dilator 1 of Wicresoft, extension arm pedicle nail 2, it is characterized in that: the telescopic dilator 1 of Wicresoft by pin 3, screw rod 4, nut 5, spring leaf 6, fluting coiled hair nail 7, a handle left side 8, the handle right side 9, spring 10, axial screw 11, rivet 12, cross board 13, bearing pin 14, screw 15, strut 16 and form; Extension arm pedicle nail 2 is comprised of adapter 19, plug screw 20, briquetting 21, rivet nut 22.Under the guiding of X-ray examination or navigation system, implement operation: at first determine orientation and the degree of depth that pedicle nail is implanted, the percutaneous puncture location, the conduit reaming, core drill bottoming hole, tapping, plant nail, penetrate pitman and pre-bending, use the same method and implant other pedicle nails, be screwed into plug screw 20, pre-locking, two sleeves of head of dilator are inserted on the pedicle nail respectively, and sleeve bottom U-shaped opening is snapped in pitman, implement distraction reduction according to clinical requirement, tighten plug screw 20, realize final locking, go pedicle nail long-tail part, realize stable fixing function.
Claims (3)
1. the telescopic dilator of Wicresoft and extension arm pedicle nail, by the telescopic dilator of Wicresoft (1), extension arm pedicle nail (2) forms, it is characterized in that: the telescopic dilator of Wicresoft (1) is by pin (3), screw rod (4), nut (5), spring leaf (6), fluting coiled hair nail (7), handle left (8), handle right (9), spring (10), axial screw (11), rivet (12), cross board (13), bearing pin (14), screw (15), strutting head (16) forms, nut (5) center tapped through hole, the lower end is spherical, and the upper end is the colored shape of rule; Extension arm pedicle nail (2) is comprised of adapter (19), plug screw (20), briquetting (21), rivet nut (22), adapter (19) outer surface has the U-shaped opening, the center step through-hole, screw thread is arranged, there is spherical pore left end inside, and this adapter (19) tail length is 60～85 millimeters.
2. the telescopic dilator of Wicresoft according to claim 1 and extension arm pedicle nail is characterized in that, there is through hole at described cross board (13) middle part, and respectively there is through hole at two ends, and two ends are arcuation, left end middle part fluting.
3. the telescopic dilator of Wicresoft according to claim 1 and extension arm pedicle nail, it is characterized in that, described strut head (16) about having minute, and symmetrically, strutting head (16) is comprised of sleeve (17) and parallel opening bar (18), sleeve (17) central through hole, right-hand member has step, and left end has fluting and arc opening; Parallel opening bar (18) right-hand member is arcuation, and step is arranged, and through hole is arranged, and left end is circular-arc and porose, and there is microscler step groove at the middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337828 CN202699262U (en) | 2012-07-13 | 2012-07-13 | Minimally invasive sleeve type expander and extension arm pedicle screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337828 CN202699262U (en) | 2012-07-13 | 2012-07-13 | Minimally invasive sleeve type expander and extension arm pedicle screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202699262U true CN202699262U (en) | 2013-01-30 |
Family
ID=47579611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220337828 Expired - Lifetime CN202699262U (en) | 2012-07-13 | 2012-07-13 | Minimally invasive sleeve type expander and extension arm pedicle screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202699262U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104161580A (en) * | 2014-08-12 | 2014-11-26 | 苏州大学附属第一医院 | Expanding instrument for space between lumbar spinous processes |
| CN110101419A (en) * | 2019-04-26 | 2019-08-09 | 昆明医科大学第二附属医院 | A kind of device for spreading being adapted to pedicle screw |
-
2012
- 2012-07-13 CN CN 201220337828 patent/CN202699262U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104161580A (en) * | 2014-08-12 | 2014-11-26 | 苏州大学附属第一医院 | Expanding instrument for space between lumbar spinous processes |
| CN104161580B (en) * | 2014-08-12 | 2016-02-10 | 苏州大学附属第一医院 | Distraction instrument between a kind of spinous process of lumbar vertebra |
| CN110101419A (en) * | 2019-04-26 | 2019-08-09 | 昆明医科大学第二附属医院 | A kind of device for spreading being adapted to pedicle screw |
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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: 20130130 |