CN202027692U - Clamping device for vertebral body specimen - Google Patents
Clamping device for vertebral body specimen Download PDFInfo
- Publication number
- CN202027692U CN202027692U CN2011200447430U CN201120044743U CN202027692U CN 202027692 U CN202027692 U CN 202027692U CN 2011200447430 U CN2011200447430 U CN 2011200447430U CN 201120044743 U CN201120044743 U CN 201120044743U CN 202027692 U CN202027692 U CN 202027692U
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- screw
- clamp
- vertebral body
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Abstract
A clamping device for a vertebral body specimen comprises a base, a support table, a clamping mechanism, a pressing mechanism and a reference frame, wherein the support table, the clamping mechanism, the pressing mechanism and the reference frame are respectively installed on the base; the support table, the clamping mechanism and the pressing mechanism are used for clamping the vertebral body specimen; and the reference frame is used for positioning the base, so that an optical positioning system can determine the space position and posture where the clamped vertebral body specimen is located. The clamping device for the vertebral body specimen can be used in conjunction with the optical positioning system, can realize the reliable clamping and positioning of the thoracic and vertebral body specimens and is convenient for surgical operation of the vertebral body by a collecting device so as to obtain the relevant force information. The collected force information can be used for force model construction in a virtual pedicle screw implantation surgical system.
Description
Technical field
This utility model relates to the virtual emulation technology, particularly a kind of vertebral body specimen clamping device.
Background technology
The operation virtual emulation is the application of virtual reality technology at medical domain, is the important research direction in present digitized surgical technic field.By operation virtual emulation technology, the doctor can formulate the optimization operation plan; Also can not repeat exercise by cadaver sample, thereby reduce surgeon's operative training expense and shorten cultivation cycle, operation virtual emulation technology has overcome few, the high deficiency of operational objectives (cadaver sample) cost of the actual hands-on chance of doctor under the conventional surgical training of doctors pattern, and is significant to the quality and the efficient that improve the medical surgery training.
Spinal column is one of most important organ of human body.People's spinal lesion and fracture dislocation incidence rate are in rising trend in recent years.The internal fixation of spine operation that is implanted as the basis with pedicle screw has advantages such as cycle weak point, instant effect, often becomes doctor and patient's first-selection.The implant surgery of spinal column pedicle screw need be determined the ideal mouth that advances to hammer on vertebral body, and the relative pose of monitoring in real time between screw or operation tool and the vertebral body concerns, and, doctor's viewing area is limited, rely on the X-ray that obtains affected part repeatedly, obtain the relative pose information between implant or operation tool and the trouble bone discontinuously, this has proposed very high requirement for doctor's operation technique level.In order to improve doctor's technical merit at short notice with lower cost, be necessary to develop the operation dummy emulation system of implanting towards the spinal column pedicle screw specially.
In order to reach operation virtual emulation effect true to nature, thereby according to the different of human body vertebral body different parts physical characteristic and punching and plant the nail degree of depth, orientation, speed, the isoparametric difference of acceleration and export different feedback forces, power is felt the feedback system ingredient that is absolutely necessary.Basic power feels that feedback system comprises device for force feedback and power feel modeling.Existing power vision model involves a large amount of complicated calculations and theoretical property is very strong, and structure of human body vertebral body and biomechanics characteristic are very complicated, the true feedback force that shows in the simple power visual information that draws by Theoretical Calculation and the operation has certain difference, the fidelity of virtual emulation thereby influence is performed the operation.Compare with simple Theoretical Calculation, feel that by power harvester gathers real feedback force information in the actual pedicle screw implantation, and to carry out modeling analysis and research on this basis be a kind of more direct effective solution.
The patent No. is that the Chinese utility model patent " analog scalpel unit " (notification number is CN1176448C) of ZL02118522.0 discloses a kind of analog scalpel, application number is the force acquisition device that 200410031486.1 Chinese utility model patent " a kind of force acquisition device of scalpel " (publication number is CN1677064A) then discloses this analog scalpel, and application number is that 200910308169.2 Chinese utility model patent " virtual surgery haptic information acquiring device " (publication number is CN101653356A) discloses a kind of virtual surgery haptic information acquiring device.These three patents all relate to the collection of human body soft tissue force feedback information, and do not consider the clamping and positioning of operational objectives in the information gathering process (tissue), up to the present, still do not have the haptic information acquiring system that implants virtual operation towards pedicle nail, more do not have the vertebral body clamping device that is specifically designed to this system.
The utility model content
The purpose of this utility model in order to solve the problems referred to above that prior art exists, provides a kind of vertebral body specimen clamping device exactly.
To achieve these goals, this utility model has adopted following technical scheme: a kind of vertebral body specimen clamping device, and it comprises:
Pedestal comprises one by strip base plate and the left wall at the two ends, the left and right sides that are connected the strip base plate and the U-shaped structural member that right wall is formed; Leading flank at strip base plate middle part is connected with preceding wall, and the middle part rear side on the strip base plate is connected with the back wall, is connected with boss in the bottom of wall inboard, back;
Brace table is connected on the boss of pedestal, comprises back-up block and adjustment screw, and adjustment screw links to each other with boss, and back-up block is arranged on the adjustment screw top and is connected with adjustment screw by screw pair;
Clamp mechanism, comprise two clamps, two guide rods and turn-screw, two clamps comprise symmetrically arranged left clamp and right clamp, left side clamp is arranged between left wall and the boss, right clamp is arranged between right wall and the boss, two guide rods comprise symmetrically arranged front side guide rod and rear side guide rod, the front side guide rod passes two clamps and left wall, right wall links to each other, the rear side guide rod passes two clamps and passes boss and left wall, right wall links to each other, turn-screw passes two clamps and passes boss and left wall, right wall links to each other, and turn-screw can drive two clamps and make relative motion and form and clamp or loosen;
Hold-down mechanism comprises hold-down head and adjusting screw(rod), and adjusting screw(rod) is threaded with preceding wall and passes preceding wall and stretch out backward, and hold-down head is arranged on the rear end of adjusting screw(rod) and flexibly connects by spherical pair with adjusting screw(rod);
Frame of reference comprises that J-shaped pole, cross carry ball-collecting rack and infrared external reflection ball, and J-shaped pole is connected wall top, back, and cross carries the upper end that ball-collecting rack is connected J-shaped pole, the infrared external reflection ball totally four be connected to four ends that cross carries ball-collecting rack.
Respectively be provided with on described left wall and the right wall and be used for installing two guide rods of clamp mechanism and about three circular holes that connect of turn-screw; Described boss is provided with the rear side guide rod that is used for installing clamp mechanism and about two circular holes that connect of turn-screw, and the boss top is provided with the pin-and-hole of the adjustment screw that is used for installing brace table; Described back wall middle inside is provided with and is used for the upright slide rail that slides and link to each other with the back-up block of brace table, and back wall inside upper part is provided with the tooth pin of giving prominence to forward; Wall top is provided with the screwed hole that the front and back of the adjusting screw(rod) that is used for installing hold-down mechanism connect before described.
The back-up block trailing flank of described brace table is provided with and is used for the vertical chute that slides and link to each other with the upright slide rail of wall inboard, back, and the back-up block upper surface is an arc-shaped concave, and concave surface is provided with the tooth pin that projects upwards; The middle part enlarged-diameter of the adjustment screw of described brace table forms adjusting knob, and the bottom of adjustment screw is made as the cylindrical alignment pin of the pin-and-hole that is used to insert the boss top.
The left part of the turn-screw in the described clamp mechanism is provided with and is used for the left-handed rectangular thread that is connected with left clamp, and right part is provided with and is used for the dextrorotation rectangular thread that is connected with right clamp, and the right-hand member of turn-screw stretches out to the right and is provided with adjusting handle from right wall; Described two clamp bottoms respectively are provided with the hole that connects about three, former and later two holes wherein are the circular hole that is used to pass two guide rods, interstitial hole is to be used for the screwed hole that is threaded with turn-screw, and the screwed hole in the left clamp is left-handed rectangular thread hole, and the screwed hole in the right clamp is dextrorotation rectangular thread hole; Described left clamp top is provided with left clamp jaw, and right clamp top is provided with right clamp jaw, and left clamp jaw is provided with outstanding tooth pin to the right, and right clamp jaw is provided with outstanding tooth pin left.
The trailing flank of the hold-down head in the described hold-down mechanism is provided with rearwardly projecting tooth pin, the hold-down head front portion is provided with three radial screw bore that are provided with at interval, three anticreep screws inwardly screw in and link to each other with the back end in contact of adjusting screw(rod) from three radial screw bore respectively, and front end the past wall of adjusting screw(rod) stretches out forward and is provided with adjusting handle.
Described J-shaped pole upper end is connected with the cross point that cross carries ball-collecting rack, and described four infrared external reflection balls are connected to the lateral surface that cross carries four ends of ball-collecting rack.
This utility model vertebral body specimen clamping device cooperates optical positioning system to use, and reliable grip and the location that can realize human body breast, lumbar vertebra specimen are so that harvester undergos surgery operation and obtains the forces associated visual information vertebral body.The power vision model that the power visual information of being gathered can be used in the virtual pedicle nail implant surgery system makes up.
Description of drawings
Fig. 1 is the perspective view of this utility model vertebral body specimen clamping device;
Fig. 2 is the perspective view of the pedestal in this utility model;
Fig. 3 is the perspective view of the brace table in this utility model;
Fig. 4 is the perspective view of the clamp mechanism in this utility model;
Fig. 5 is the perspective view of the hold-down mechanism in this utility model;
Fig. 6 is the perspective view of the frame of reference in this utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments this utility model is elaborated.
Referring to Fig. 1, cooperate referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, this utility model vertebral body specimen clamping device comprises pedestal 1, brace table 2, clamp mechanism 3, hold-down mechanism 4 and frame of reference 5.Shown in Fig. 1,6 is the vertebral body specimen.
Referring to Fig. 2, the pedestal 1 in this utility model comprises one by strip base plate 11 and the left wall 12 at the two ends, the left and right sides that are connected strip base plate 11 and the U-shaped structural member that right wall 13 is formed; Wall 14 before the leading flank at strip base plate 11 middle parts is connected with, the middle part rear side on strip base plate 11 are connected with back wall 15, are connected with boss 16 in the bottom of wall 15 inboards, back.Respectively be provided with on left wall 12 wherein and the right wall 13 and be used for installing two guide rods of clamp mechanism and about three circular holes 121,131 that connect of turn-screw; Boss 16 is provided with the inboard guide rod that is used for installing clamp mechanism and about two circular holes 161 that connect of turn-screw, and the boss top is provided with the pin-and-hole 162 of the adjustment screw that is used for installing brace table; Back wall 15 middle inside are provided with and are used for the upright slide rail 151 that slides and link to each other with the back-up block of brace table, and back wall inside upper part is provided with the tooth pin of giving prominence to forward 152 and is used to locate the vertebral body specimen, and back wall top is provided with the screwed hole 153 that is used to install frame of reference 5; Before wall 14 tops be provided with the screwed hole 141 that the front and back of the adjusting screw(rod) that is used for installing hold-down mechanism connect.
Referring to Fig. 3, the brace table 2 in this utility model is connected on the boss 16 of pedestal 1, comprises back-up block 21 and adjustment screw 22, and adjustment screw 22 links to each other with boss 16, and back-up block 21 is arranged on adjustment screw 22 tops and is connected with adjustment screw by screw pair.Be provided with at back-up block 21 trailing flanks of brace table and be used for the vertical chute 211 that slides and link to each other with the upright slide rail of wall inboard, back, back-up block upper surface 212 is an arc-shaped concave, and concave surface is provided with the tooth pin 213 that projects upwards and is used to locate the vertebral body specimen; The middle part enlarged-diameter of adjustment screw 22 forms adjusting knob 221, and the bottom of adjustment screw is made as the cylindrical alignment pin 222 of the pin-and-hole that is used to insert the boss top.
Referring to Fig. 4, clamp mechanism 3 in this utility model comprises two clamps 31,32, two guide rods 33,34 and turn-screw 35, two clamps comprise symmetrically arranged left clamp 31 and right clamp 32, left side clamp 31 is arranged between left wall 12 and the boss 16, right clamp 32 is arranged between right wall 13 and the boss 16, two guide rods comprise symmetrically arranged front side guide rod 33 and rear side guide rod 34, front side guide rod 33 passes two clamps 31,32 with left wall 12, right wall 13 links to each other, rear side guide rod 34 passes two clamps 31,32 and pass boss 16 and left wall 12, right wall 13 links to each other, turn-screw 35 passes two clamps 31,32 and pass boss 16 and left wall 12, right wall 13 links to each other, and turn-screw 35 can drive two clamps 31,32 make relative motion form to clamp or loosens.Be provided with at the left part of turn-screw 35 and be used for the left-handed rectangular thread 351 that is connected with left clamp, right part is provided with and is used for the dextrorotation rectangular thread 352 that is connected with right clamp, and the right-hand member of turn-screw 35 stretches out to the right and is provided with adjusting handle 353 from right wall 13; Two clamps, 31,32 bottoms respectively are provided with the hole that connects about three, former and later two holes wherein are the circular hole that is used to pass two guide rods, interstitial hole is to be used for the screwed hole that is threaded with turn-screw, and the screwed hole in the left clamp is left-handed rectangular thread hole, and the screwed hole in the right clamp is dextrorotation rectangular thread hole.Clamp 31 tops, a left side are provided with left clamp jaw 311, and right clamp 32 tops are provided with right clamp jaw 321, and left clamp jaw is provided with outstanding tooth pin to the right and is used to clamp the vertebral body specimen, and right clamp jaw is provided with outstanding tooth pin left and is used to clamp the vertebral body specimen.
Referring to Fig. 5, hold-down mechanism 4 in this utility model comprises hold-down head 41 and adjusting screw(rod) 42, adjusting screw(rod) 42 is threaded with preceding wall 14 and passes preceding wall and stretch out backward, and hold-down head 42 is arranged on the rear end of adjusting screw(rod) 41 and flexibly connects by spherical pair with adjusting screw(rod) 42.On the trailing flank of hold-down head 41, be provided with rearwardly projecting tooth pin 411 and be used to compress the vertebral body specimen, be provided with three radial screw bore 412 that are provided with at interval in hold-down head 41 front portions, three anticreep screws inwardly screw in and link to each other with the back end in contact of adjusting screw(rod) 42 from three radial screw bore 412 respectively, and front end the past wall 14 of adjusting screw(rod) 42 stretches out forward and is provided with adjusting handle 421.
Referring to Fig. 6, frame of reference 5 in this utility model comprises that J-shaped pole 51, cross carry ball-collecting rack 52 and infrared external reflection ball 53, J-shaped pole 51 is connected wall 15 tops, back, cross carries ball-collecting rack 52 and is connected the upper end of J-shaped pole 51 and is connected with cross point that cross carries ball-collecting rack 52, infrared external reflection ball 53 totally four be connected to the lateral surface that cross carries four ends of ball-collecting rack 52.Frame of reference 5 is used for positioning pedestal 1, so that optical positioning system is determined the residing spatial pose of clamping vertebral body specimen.
Claims (6)
1. a vertebral body specimen clamping device is characterized in that, comprising:
Pedestal comprises one by strip base plate and the left wall at the two ends, the left and right sides that are connected the strip base plate and the U-shaped structural member that right wall is formed; Leading flank at strip base plate middle part is connected with preceding wall, and the middle part rear side on the strip base plate is connected with the back wall, is connected with boss in the bottom of wall inboard, back;
Brace table is connected on the boss of pedestal, comprises back-up block and adjustment screw, and adjustment screw links to each other with boss, and back-up block is arranged on the adjustment screw top and is connected with adjustment screw by screw pair;
Clamp mechanism, comprise two clamps, two guide rods and turn-screw, two clamps comprise symmetrically arranged left clamp and right clamp, left side clamp is arranged between left wall and the boss, right clamp is arranged between right wall and the boss, two guide rods comprise symmetrically arranged front side guide rod and rear side guide rod, the front side guide rod passes two clamps and left wall, right wall links to each other, the rear side guide rod passes two clamps and passes boss and left wall, right wall links to each other, turn-screw passes two clamps and passes boss and left wall, right wall links to each other, and turn-screw can drive two clamps and make relative motion and form and clamp or loosen;
Hold-down mechanism comprises hold-down head and adjusting screw(rod), and adjusting screw(rod) is threaded with preceding wall and passes preceding wall and stretch out backward, and hold-down head is arranged on the rear end of adjusting screw(rod) and flexibly connects by spherical pair with adjusting screw(rod);
Frame of reference comprises that J-shaped pole, cross carry ball-collecting rack and infrared external reflection ball, and J-shaped pole is connected wall top, back, and cross carries the upper end that ball-collecting rack is connected J-shaped pole, the infrared external reflection ball totally four be connected to four ends that cross carries ball-collecting rack.
2. vertebral body specimen clamping device as claimed in claim 1 is characterized in that: respectively be provided with two guide rods that are used for installing clamp mechanism and about three circular holes that connect of turn-screw on described left wall and the right wall; Described boss is provided with the rear side guide rod that is used for installing clamp mechanism and about two circular holes that connect of turn-screw, and the boss top is provided with the pin-and-hole of the adjustment screw that is used for installing brace table; Described back wall middle inside is provided with and is used for the upright slide rail that slides and link to each other with the back-up block of brace table, and back wall inside upper part is provided with the tooth pin of giving prominence to forward; Wall top is provided with the screwed hole that the front and back of the adjusting screw(rod) that is used for installing hold-down mechanism connect before described.
3. vertebral body specimen clamping device as claimed in claim 1, it is characterized in that: the back-up block trailing flank of described brace table is provided with and is used for the vertical chute that slides and link to each other with the upright slide rail of wall inboard, back, the back-up block upper surface is an arc-shaped concave, and concave surface is provided with the tooth pin that projects upwards; The middle part enlarged-diameter of the adjustment screw of described brace table forms adjusting knob, and the bottom of adjustment screw is made as the cylindrical alignment pin of the pin-and-hole that is used to insert the boss top.
4. vertebral body specimen clamping device as claimed in claim 1, it is characterized in that: the left part of the turn-screw in the described clamp mechanism is provided with and is used for the left-handed rectangular thread that is connected with left clamp, right part is provided with and is used for the dextrorotation rectangular thread that is connected with right clamp, and the right-hand member of turn-screw stretches out to the right and is provided with adjusting handle from right wall; Described two clamp bottoms respectively are provided with the hole that connects about three, former and later two holes wherein are the circular hole that is used to pass two guide rods, interstitial hole is to be used for the screwed hole that is threaded with turn-screw, and the screwed hole in the left clamp is left-handed rectangular thread hole, and the screwed hole in the right clamp is dextrorotation rectangular thread hole; Described left clamp top is provided with left clamp jaw, and right clamp top is provided with right clamp jaw, and left clamp jaw is provided with outstanding tooth pin to the right, and right clamp jaw is provided with outstanding tooth pin left.
5. vertebral body specimen clamping device as claimed in claim 1, it is characterized in that: the trailing flank of the hold-down head in the described hold-down mechanism is provided with rearwardly projecting tooth pin, the hold-down head front portion is provided with three radial screw bore that are provided with at interval, three anticreep screws inwardly screw in and link to each other with the back end in contact of adjusting screw(rod) from three radial screw bore respectively, and front end the past wall of adjusting screw(rod) stretches out forward and is provided with adjusting handle.
6. vertebral body specimen clamping device as claimed in claim 1 is characterized in that: described J-shaped pole upper end is connected with the cross point that cross carries ball-collecting rack, and described four infrared external reflection balls are connected to the lateral surface that cross carries four ends of ball-collecting rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200447430U CN202027692U (en) | 2011-02-22 | 2011-02-22 | Clamping device for vertebral body specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200447430U CN202027692U (en) | 2011-02-22 | 2011-02-22 | Clamping device for vertebral body specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202027692U true CN202027692U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200447430U Expired - Fee Related CN202027692U (en) | 2011-02-22 | 2011-02-22 | Clamping device for vertebral body specimen |
Country Status (1)
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| CN (1) | CN202027692U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646350A (en) * | 2011-02-22 | 2012-08-22 | 上海理工大学 | Centrum location device for virtual surgery force sense information acquisition |
| CN103644882A (en) * | 2013-11-28 | 2014-03-19 | 无锡市航鹄科技有限公司 | A positioning tool used for measuring cylinder conicity |
| CN103673964A (en) * | 2013-11-28 | 2014-03-26 | 无锡市航鹄科技有限公司 | Positioning fixture for measuring roundness of cylinders |
| CN105627918A (en) * | 2014-11-05 | 2016-06-01 | 北京航天计量测试技术研究所 | Axle hole reference on-site and quick leading out tool and method for visual precision measuring |
| CN107571170A (en) * | 2017-09-28 | 2018-01-12 | 泰豪科技股份有限公司 | A kind of fast fixture |
-
2011
- 2011-02-22 CN CN2011200447430U patent/CN202027692U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646350A (en) * | 2011-02-22 | 2012-08-22 | 上海理工大学 | Centrum location device for virtual surgery force sense information acquisition |
| CN102646350B (en) * | 2011-02-22 | 2013-12-11 | 上海理工大学 | Centrum location device for virtual surgery force sense information acquisition |
| CN103644882A (en) * | 2013-11-28 | 2014-03-19 | 无锡市航鹄科技有限公司 | A positioning tool used for measuring cylinder conicity |
| CN103673964A (en) * | 2013-11-28 | 2014-03-26 | 无锡市航鹄科技有限公司 | Positioning fixture for measuring roundness of cylinders |
| CN105627918A (en) * | 2014-11-05 | 2016-06-01 | 北京航天计量测试技术研究所 | Axle hole reference on-site and quick leading out tool and method for visual precision measuring |
| CN105627918B (en) * | 2014-11-05 | 2019-01-08 | 北京航天计量测试技术研究所 | Quickly draw tooling and method in axis hole benchmark scene for precision visual measurement |
| CN107571170A (en) * | 2017-09-28 | 2018-01-12 | 泰豪科技股份有限公司 | A kind of fast fixture |
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| Date | Code | Title | Description |
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| 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: 20111109 Termination date: 20120222 |