CN202776526U - Opening pressurizer - Google Patents
Opening pressurizer Download PDFInfo
- Publication number
- CN202776526U CN202776526U CN 201220496516 CN201220496516U CN202776526U CN 202776526 U CN202776526 U CN 202776526U CN 201220496516 CN201220496516 CN 201220496516 CN 201220496516 U CN201220496516 U CN 201220496516U CN 202776526 U CN202776526 U CN 202776526U
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- hole
- crossbeam
- rotating shaft
- fixed arm
- fixed
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Abstract
The utility model relates to an opening pressurizer which comprises a beam, a movable arm, a fixed arm, small U-shaped clamping grooves and a rotating shaft. The movable arm is provided with two grooves which are matched with cantilever rods of the beam, so that the grooves can move along the cantilever rods of the beam in a reciprocated mode. A U-shaped track hole is formed in one side of the fixed arm, and is used for the small U-shaped clamping grooves to move along the track hole back and forth, a cylindrical rod portion is arranged on the other side of the fixed arm, the cylindrical rod portion is matched with a hole in the beam, and the cylindrical rod portion and the hole in the beam are connected, limited and fixed through a limiting bolt I. Corresponding to the beam, the fixed arm can not conduct reciprocating movement, but can conduct rotating movement around a self axis, and the position of the fixed arm can be locked through a locking knob I. The opening pressurizer can fix vertebral pedicle bolts arranged in any three-dimensional direction by adjusting the two U-shaped clamping grooves. The opening pressurizer specially aims at a vertebral column minimally invasive surgery, is matched with surgical instruments, and achieves opening and compressing, can fix the vertebral pedicle bolts arranged in any three-dimensional direction by adjusting the two U-shaped clamping grooves, and carries out opening and compressing.
Description
[technical field]
This utility model relates to the surgical medical equipment technical field, specifically, is a kind of unfolding pressurizing device that is applicable to minimally invasive spine surgical.
[background technology]
Spine nail rod internal fixation system is a kind of very ripe spinal surgery aspect treatment spinal injury and disease, be widely used carry out skeleton reset and fixing.Usually the securing members such as pedicle screw, hook are implanted and fixed with vertebral body, connect by pitman, fix with holding screw again, play a supportive role.In the art, before finally tightening holding screw, generally need carry out as required the necessary compression that struts, usually operate by distraction forcep or compression forceps.
In recent years, along with operating theater instruments is constantly updated, the continuous appearance of advanced medical imaging equipment and the application of art Computer assisting navigation, less invasive techniques develops very fast in spinal surgery.Minimally Invasive Surgery reduces operating time, reduces the sickness rate of complication, alleviates tissue injury and hemorrhage in the art, shortens patient's recovery time, alleviates operation pain, is that otch is attractive in appearance, shortens and is in hospital and rehabilitation duration, reduces drug use and the Financial cost of the cost of being in hospital.Along with the development of science and technology, the vertebral column minimally invasive technology will as the part of conventional surgical technology, become a main trend of internal fixation of spine technical development.
And traditional distraction forcep or compression forceps can only be applicable to open surgery, therefore, provide a kind of can be used for the Via Posterior Spinal Approach Minimally Invasive Surgery to strut compressor very necessary.
[utility model content]
Of the present utility modelly be at present to provide a kind of unfolding pressurizing device that is applicable to Via Posterior Spinal Approach nail-stick system Minimally Invasive Surgery.
The purpose of this utility model is achieved through the following technical solutions:
A kind of unfolding pressurizing device comprises crossbeam, lever arm, fixed arm, little U-shaped draw-in groove, rotating shaft, it is characterized in that, the cylindric bar of fixed arm section is inserted crossbeam hole I, and tightens fixingly by stop screw I, again locking knob I is screwed into to locate; Little U-shaped draw-in groove is inserted the U-shaped runway of fixed arm hole, and be fixed in the runway hole with locking knob II and stop screw II; Lever arm is inserted the crossbeam cantilever lever, and the guarantor is to consistent with the fixed arm direction, rotating shaft inserts crossbeam hole II, and by swivel ferrule, with fixing rotating shaft one end of pin II; The beam-ends back-up block is inserted the rotating shaft opposite side, with hold-down screw beam-ends back-up block and crossbeam are fixed; At last with the knob sleeve snare on rotating shaft, and fix with pin I together with knob.
Described crossbeam, end is provided with two cantilever levers on it, is used for being connected with lever arm; Opposite side is provided with a hole I, is used for being connected with fixed arm; Hole side end is provided with a screwed hole I, in order to cooperate with locking knob I; The middle part is provided with a groove, is used for and the swivel ferrule assembling, thinks that rotating shaft provides support; Cantilever lever and groove transition portion are provided with a hole II, in order to supporting rotating shaft.
Described lever arm is provided with two grooves that cooperate with the crossbeam cantilever lever, and lever arm can move back and forth along the crossbeam cantilever lever; Is provided with a screwed hole II in the middle of two grooves, is used for cooperating with the external screw thread of rotating shaft and realizes transmission, and realize reciprocating motion; Its end is provided with U-shaped draw-in groove, in order to cooperate with the related surgical apparatus.
Described fixed arm, side is provided with U-shaped runway hole on it, inserts for little U-shaped draw-in groove, moves back and forth along the duct, and by locking knob II it is locked; The fixed arm opposite side is provided with cylindric bar section, cooperate with hole on the crossbeam, and its inside is provided with screw thread, be connected spacing fixing with stop screw I, fixed arm can not move reciprocatingly with respect to crossbeam, but can rotate around himself axis, and can carry out locking position by locking knob I.
Described beam-ends back-up block, it simultaneously is provided with hole III, in order to supporting rotating shaft; The in addition two sides vertical with this face are provided with a plurality of screwed hole III, are fixed screw and are fixed in crossbeam.
Described rotating shaft which is provided with screw thread, cooperates with the lever arm screwed hole; Two ends are polished rod, and a side is inserted II place, crossbeam hole, cooperates with revoling tube, fixes by pin II again; Opposite side inserts the III place, hole of beam-ends back-up block, cooperates with the knob sleeve pipe, is connecting knob, and I fixes by pin.So far, can pass through rotary knob, carry out transmission.
A kind of unfolding pressurizing device, its assemble flow is as follows: the cylindric bar of fixed arm section is inserted crossbeam hole I, and be screwed into fixedly by stop screw I that armed lever section screwed hole is screwed into crossbeam hole side end thread hole I to locate with fixing with locking knob I; Little U-shaped draw-in groove is inserted the U-shaped runway of fixed arm hole, and be fixed in the runway hole with locking knob II and stop screw II; Lever arm is inserted the crossbeam cantilever lever, and the guarantor is to consistent with the fixed arm direction, rotating shaft inserts crossbeam hole II, and by swivel ferrule, with fixing rotating shaft one end of pin II; The beam-ends back-up block is inserted the rotating shaft opposite side, with hold-down screw beam-ends back-up block and crossbeam are fixed; At last with the knob sleeve snare on rotating shaft, and fix with pin I together with knob.
During use, cooperate corresponding operating theater instruments to finish and strut squeeze operation, according to the distance between pedicle screw, by distance and direction and the locking between the knob of crossbeam one side and the locking knob I on the fixed arm and II adjustment hold-down screw, U-shaped draw-in groove on the lever arm is snapped in the apparatus that links to each other with pedicle screw with the little U-shaped draw-in groove that is connected with fixed arm, and the knob of swing bolster one side is realized strutting or compressing.
Compared with prior art, good effect of the present utility model is:
(1) especially for minimally invasive spine surgical, cooperate with operating theater instruments, realize strutting compression;
(2) owing to the particular design of two arms, this utility model can be fixed the pedicle screw that is in three-dimensional diverse location orientation by two U-shaped draw-in grooves, and struts compression.
[description of drawings]
Fig. 1 is this utility model---a kind of unfolding pressurizing device schematic three dimensional views one;
Fig. 2 is this utility model---a kind of unfolding pressurizing device schematic three dimensional views two.
Fig. 3 is this utility model---the three-dimensional explosive view of a kind of unfolding pressurizing device.
Label in the accompanying drawing is: 1, unfolding pressurizing device, 10, crossbeam, 101, two cantilever levers, 102, hole I, 103, groove, 11, lever arm, 111, two grooves that cooperate with cantilever lever, 112, U-shaped draw-in groove, 12, fixed arm, 121, U-shaped runway hole, 122, upper end bar section, 13, locking knob I, 14, little U-shaped draw-in groove, 15, locking knob II, 16, knob, 17, stop screw I, 18, stop screw II, 19, pin I, 20, the knob lasso, 21, the beam-ends back-up block, 22, hold-down screw, 23, rotating shaft, 24, swivel ferrule, 25, pin II.
[specific embodiment]
The specific embodiment of a kind of unfolding pressurizing device of this utility model below is provided.
Embodiment 1
Specifically introduce embodiment of the present utility model below in conjunction with accompanying drawing 1 and Fig. 2.
Accompanying drawing 1 is this utility model---a kind of unfolding pressurizing device schematic three dimensional views 1; Accompanying drawing 2 is this utility model---a kind of unfolding pressurizing device schematic three dimensional views 2; Accompanying drawing 3 is this utility model---the three-dimensional explosive view of a kind of unfolding pressurizing device.
As shown in drawings, a kind of unfolding pressurizing device 1 is comprised of crossbeam 10, lever arm 11, fixed arm 12, little U-shaped draw-in groove 14, knob 16, knob lasso 20, beam-ends back-up block 21, rotating shaft 23, swivel ferrule 24, hold-down screw 22, locking knob I13, locking knob II15, stop screw I17, stop screw II18, pin I19, pin II25.
Described crossbeam 10, end is provided with two cantilever levers 101 on it, is used for being connected with lever arm 11; Opposite side is provided with a hole I102, is used for being connected with fixed arm 12; Hole side end is provided with a screwed hole I, in order to cooperate with locking knob I17; The middle part is provided with a groove 103, is used for and swivel ferrule 24 assemblings, thinks that rotating shaft 23 provides support; Cantilever lever 101 is provided with a hole II with groove 103 transition portions, in order to supporting rotating shaft 23.
Described lever arm 11 is provided with two grooves 111 that cooperate with crossbeam cantilever lever 101, and lever arm 11 can move back and forth along crossbeam cantilever lever 101; Is provided with a screwed hole II in the middle of two grooves, is used for cooperating with the external screw thread of rotating shaft 23 and realizes transmission, and realize reciprocating motion; Its end is provided with U-shaped draw-in groove 112, in order to cooperate with the related surgical apparatus.
Described fixed arm 12, side is provided with U-shaped runway hole 121 on it, inserts for little U-shaped draw-in groove 14, moves back and forth along the duct, and by locking knob II15 it is locked; Fixed arm 12 opposite sides are provided with cylindric bar section, cooperate with the hole on the crossbeam, and its inside is provided with screw thread, be connected spacing fixing with stop screw I17, fixed arm 12 can not move reciprocatingly with respect to crossbeam 10, but can rotate around himself axis, and can carry out locking position by locking knob I13.
Described beam-ends back-up block 21, it simultaneously is provided with hole III, in order to supporting rotating shaft 23; The in addition two sides vertical with this face are provided with a plurality of screwed hole III, are fixed screw 22 and are fixed in crossbeam 10.
Described rotating shaft 23 which is provided with screw thread, cooperates with the lever arm screwed hole; Two ends are polished rod, and a side is inserted II place, crossbeam hole, cooperates with swivel ferrule 24, fixes by pin II again; Opposite side inserts the III place, hole of beam-ends back-up block, cooperates with knob lasso 20, is connecting knob 16, and I19 fixes by pin.So far, can pass through rotary knob 16, carry out transmission.
A kind of unfolding pressurizing device, its assemble flow is as follows: the cylindric bar of fixed arm 12 section is inserted crossbeam hole I102, and be screwed into fixedly by stop screw I17 that armed lever section screwed hole is screwed into crossbeam hole side end thread hole I to locate with fixing with locking knob I13; Little U-shaped draw-in groove 14 is inserted fixed arm 12U type runway hole 121, and be fixed in the runway hole 121 with locking knob II15 and stop screw II18; Lever arm 11 is inserted crossbeam cantilever levers 101, and the guarantor is to consistent with fixed arm 12 directions, rotating shaft 23 inserts crossbeam hole II, and by swivel ferrule 24, with fixing rotating shaft 23 1 ends of pin II25; Beam-ends back-up block 21 is inserted rotating shaft 23 opposite sides, with hold-down screw 22 that beam-ends back-up block 21 is fixing with crossbeam 10; At last knob lasso 20 is placed on the rotating shaft 23, and fixes together with knob 16 usefulness pin I19.
During use, cooperate corresponding operating theater instruments to finish and strut squeeze operation, according to the distance between pedicle screw, by the knob 16 of crossbeam one side and distance and direction and the locking between the locking knob I13 on the fixed arm and II15 adjustment hold-down screw, U-shaped draw-in groove 112 on the lever arm is snapped in the apparatus that links to each other with pedicle screw with the little U-shaped draw-in groove 14 that is connected with fixed arm, and the knob 16 of swing bolster one side is realized strutting or compressing.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, without departing from the concept of the premise utility; can also make some improvements and modifications, these improvements and modifications also should be considered as in the protection domain of the present utility model.
Claims (6)
1. a unfolding pressurizing device comprises crossbeam, lever arm, fixed arm, little U-shaped draw-in groove and rotating shaft is characterized in that, the cylindric bar of fixed arm section is inserted crossbeam hole I, and be screwed into the fixed arm screwed hole with fixing by stop screw I, locking knob I is screwed into the beam-ends screwed hole with the location; Little U-shaped draw-in groove is inserted the U-shaped runway of fixed arm hole, and be fixed in the runway hole with locking knob II and stop screw II; Lever arm is inserted the crossbeam cantilever lever, and the guarantor is to consistent with the fixed arm direction, rotating shaft inserts crossbeam hole II, and by swivel ferrule, with fixing rotating shaft one end of pin II; The beam-ends back-up block is inserted the rotating shaft opposite side, with hold-down screw beam-ends back-up block and crossbeam are fixed; At last with the knob sleeve snare on rotating shaft, and fix with pin I together with knob.
2. a kind of unfolding pressurizing device as claimed in claim 1 is characterized in that, described crossbeam, and end is provided with two cantilever levers on it, is used for being connected with lever arm; Opposite side is provided with a hole I, is used for being connected with fixed arm; Hole side end is provided with a screwed hole I, in order to cooperate with locking knob I; The middle part is provided with a groove, is used for and the swivel ferrule assembling, thinks that rotating shaft provides support; Cantilever lever and groove transition portion are provided with a hole II, in order to supporting rotating shaft.
3. a kind of unfolding pressurizing device as claimed in claim 1 is characterized in that, described lever arm is provided with two grooves that cooperate with the crossbeam cantilever lever, and lever arm moves back and forth along the crossbeam cantilever lever; Is provided with a screwed hole II in the middle of two grooves, is used for cooperating with the external screw thread of rotating shaft and realizes transmission, and realize reciprocating motion; Its end is provided with U-shaped draw-in groove.
4. a kind of unfolding pressurizing device as claimed in claim 1 is characterized in that, described fixed arm, and side is provided with U-shaped runway hole on it, inserts for little U-shaped draw-in groove, moves back and forth along the duct, and by locking knob II it is locked; The fixed arm opposite side is provided with cylindric bar section, cooperate with hole on the crossbeam, and its inside is provided with screw thread, be connected spacing fixing with stop screw I, fixed arm can not move reciprocatingly with respect to crossbeam, but can rotate around himself axis, and can carry out locking position by locking knob I.
5. a kind of unfolding pressurizing device as claimed in claim 1 is characterized in that, described beam-ends back-up block, and it simultaneously is provided with hole III, in order to supporting rotating shaft; The in addition two sides vertical with this face are provided with a plurality of screwed hole III, are fixed screw and are fixed in crossbeam.
6. a kind of unfolding pressurizing device as claimed in claim 1 is characterized in that, described rotating shaft which is provided with screw thread, cooperates with the lever arm screwed hole; Two ends are polished rod, and a side is inserted II place, crossbeam hole, cooperates with revoling tube, fixes by pin II again; Opposite side inserts the III place, hole of beam-ends back-up block, cooperates with the knob sleeve pipe, connects knob again, and I fixes by pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496516 CN202776526U (en) | 2012-09-26 | 2012-09-26 | Opening pressurizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496516 CN202776526U (en) | 2012-09-26 | 2012-09-26 | Opening pressurizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202776526U true CN202776526U (en) | 2013-03-13 |
Family
ID=47803887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220496516 Expired - Fee Related CN202776526U (en) | 2012-09-26 | 2012-09-26 | Opening pressurizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202776526U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106667559A (en) * | 2017-01-04 | 2017-05-17 | 苏州爱得科技发展股份有限公司 | Minimally invasive system for vertebral column |
| CN107714202A (en) * | 2017-10-18 | 2018-02-23 | 广州瑞通生物科技有限公司 | A kind of personalized arch wire torque bending device |
| CN108143450A (en) * | 2017-12-26 | 2018-06-12 | 北京天和诚医疗科技有限公司 | One kind struts pressue device and its application method |
-
2012
- 2012-09-26 CN CN 201220496516 patent/CN202776526U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106667559A (en) * | 2017-01-04 | 2017-05-17 | 苏州爱得科技发展股份有限公司 | Minimally invasive system for vertebral column |
| CN107714202A (en) * | 2017-10-18 | 2018-02-23 | 广州瑞通生物科技有限公司 | A kind of personalized arch wire torque bending device |
| CN107714202B (en) * | 2017-10-18 | 2024-02-13 | 广州瑞通生物科技有限公司 | Individualized arch wire torque bending device |
| CN108143450A (en) * | 2017-12-26 | 2018-06-12 | 北京天和诚医疗科技有限公司 | One kind struts pressue device and its application method |
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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: 20130313 Termination date: 20190926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |