CN101653380A - Stationary fixture for pelvis biomechanics experiment - Google Patents
Stationary fixture for pelvis biomechanics experiment Download PDFInfo
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- CN101653380A CN101653380A CN200910092435A CN200910092435A CN101653380A CN 101653380 A CN101653380 A CN 101653380A CN 200910092435 A CN200910092435 A CN 200910092435A CN 200910092435 A CN200910092435 A CN 200910092435A CN 101653380 A CN101653380 A CN 101653380A
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Abstract
The invention discloses a stationary fixture for pelvis biomechanics experiment. The fixture is connected to a mechanical testing machine by a base. A first anterior superior iliac spine baffle and asecond anterior superior iliac spine baffle of the fixture are respectively connected to a pubic tubercle baffle by a first sacrum stationary jaw and a second sacrum stationary jaw. A top tray of upper margin of pubic bone and a bottom board of lower margin of pubic bone are respectively vertically connected to the pubic tubercle baffle. The first sacrum stationary jaw and the second sacrum stationary jaw are connected to the top tray of upper margin of pubic bone. A sacrum fixing cross slab is fixed on the first sacrum stationary jaw and the second sacrum stationary jaw. A connecting rod is arranged on the lower surface of the top tray of upper margin of pubic bone. A back head of pubic bone is horizontally connected to the connecting rod. The lower head of pubic bone is vertically drilled through the bottom board of lower margin of pubic bone. With the fixture of the invention, the pelvis can be fixed by taking a standing posture to do experiment, and the substance of bone and the structure of pelvic are not destroyed by assembling or detaching the fixture.
Description
Technical field
The present invention relates to the biomechanics field, be specifically related to a kind of stationary fixture for pelvis biomechanics experiment.The scope of application of the present invention is for adopting the biomechanics experiment of pelvis erect position for the experiment attitude, and being suitable for the mechanical test machine is Vertical loading type mechanical test machine.
Background technology
At present, do not have special general pelvis stationary fixture in the pelvis biomechanics experiment field, researcher is the pelvis stationary fixture of design mostly voluntarily.Different researcheres are when carrying out same experiment, and the experiment of having to use self-designed anchor clamps earlier forefathers to be done comes again, and just can carry out more deep research, and therefore the contrast otherwise test data is had no idea has caused the waste of manpower and materials.List of references [1] Wang Qingxian, Zhang Yingze, Pan Jinshe etc. the biomechanics Research and the clinical meaning [J] of the different internal fixation methods of acetabular bone transverse fracture. Chinese orthopaedic trauma magazine, in March, 2005,7 (3): 259-262; List of references [2] Wang Qingxian, Zhang Yingze, Pan Jinshe etc. the stress distribution of bearing a heavy burden and distinguish in the different internal fixation method mortars of acetabular bone transverse fracture top [J]. Chinese wound magazine, in December, 2004,20 (12): 743-746; List of references [3] Steven A.Olson, Brain K.Bay, Andrew Hame 1.Biomechanics of the Hip Joint and the Effects of Fractureof the Acetabulum.Clin Orthop, 1997,339:92-104. all introduced a kind of existing pelvic clamp respectively, but in use there is following several problem in the above-mentioned pelvis stationary fixture of design voluntarily:
(1) the actual physiological location of the fixed form of anchor clamps and pelvis is not inconsistent;
(2) installation and removal of anchor clamps have damage to pelvis sclerotin and structure;
(3) researcher that has is mentioned in experimental program and is adopted the pelvis erect position to be the experiment attitude, but its used anchor clamps can guarantee that without any constraints pelvis is in erect position;
Use different anchor clamps when (4) different researcheres carry out same the experiment, experimental result does not each other have relatedness and continuity.
Summary of the invention
The present invention is a kind of stationary fixture for pelvis biomechanics experiment, and described anchor clamps both can guarantee pelvis erect position attitude, pelvis were not caused damage again; Described anchor clamps are supported fixing by base and adjust the position.
Because when human body was in erect position, pelvis turned forward, both sides anterior superior iliac spine and pubic tubercle are positioned at same coronalplane, and at this moment, apex of coccyx and superior margin of pubic symphysis are positioned on the same horizontal plane.Therefore, the invention provides a kind of stationary fixture for pelvis biomechanics experiment, make pelvic position satisfy above-mentioned condition, to guarantee the erect position of pelvis.A kind of stationary fixture for pelvis biomechanics experiment, these anchor clamps comprise fixedly top, connecting rod holddown groove, chute, pubic symphysis top down behind transverse slat, pubic symphysis lower shoe, connecting rod, the pubic symphysis of the first anterior superior iliac spine baffle plate, the second anterior superior iliac spine baffle plate, the first anterior superior iliac spine baffle plate gusset plate, the second anterior superior iliac spine baffle plate gusset plate, pubic tubercle baffle plate, superior margin of pubic symphysis top board, the first rumpbone strap, the second rumpbone strap, rumpbone.
The first anterior superior iliac spine baffle plate is fixedlyed connected with the first anterior superior iliac spine baffle plate gusset plate; The second anterior superior iliac spine baffle plate is fixedlyed connected with the second anterior superior iliac spine baffle plate gusset plate; The first anterior superior iliac spine baffle plate gusset plate and pubic tubercle baffle plate upper end flexibly connect by bolt A, and the first anterior superior iliac spine baffle plate lower limb circular arc is contacted with the top edge circular arc of pubic tubercle baffle plate; The second anterior superior iliac spine baffle plate gusset plate lower end and pubic tubercle baffle plate upper end also flexibly connect by bolt A, and the lower limb circular arc of the second anterior superior iliac spine baffle plate is contacted with the top edge circular arc of pubic tubercle baffle plate; Have arc chute on the pubic tubercle baffle plate; The first anterior superior iliac spine baffle plate gusset plate is movably connected in the chute by bolt B, and the second anterior superior iliac spine baffle plate gusset plate is movably connected in the chute by bolt C.
The described first anterior superior iliac spine baffle plate, the second anterior superior iliac spine baffle plate and pubic tubercle baffle plate are positioned at same plane.
Described bolt B and bolt C slide in chute, realize that the angle between the first anterior superior iliac spine baffle plate and the second anterior superior iliac spine baffle plate is changed to 180 ° from 30 °; Chute plays effect spacing and guiding to the first anterior superior iliac spine baffle plate and the second anterior superior iliac spine baffle plate.
The superior margin of pubic symphysis top board is fixedlyed connected with the pubic tubercle baffle plate is orthogonal, and the pubic symphysis lower shoe is fixedlyed connected with the pubic tubercle baffle plate is orthogonal, and superior margin of pubic symphysis top board and pubic symphysis lower shoe are positioned at the homonymy of pubic tubercle baffle plate, and are parallel to each other.
Described superior margin of pubic symphysis top board is a saddle.
Upper surface at the superior margin of pubic symphysis top board is rotatably connected to the first rumpbone strap and the second rumpbone strap; Have bar-shaped trough B on the first rumpbone strap, have bar-shaped trough C on the second rumpbone strap, rumpbone fixedly vertically has bar-shaped trough A in the transverse slat middle part, flexibly connects by bolt F between bar-shaped trough A and the bar-shaped trough B, flexibly connects by bolt G between bar-shaped trough A and the bar-shaped trough C.
The lower surface of superior margin of pubic symphysis top board is provided with the connecting rod holddown groove, is used for fixing connecting rod; Connecting rod is fixed in the connecting rod holddown groove, is used for matching with the track of base.
Pubic symphysis top down passes from the vertical hole of pubic symphysis lower shoe, is used for the vertical fixing pubic symphysis; The top is passed from the intermediary lateral aperture of connecting rod behind the pubic symphysis, is used for the horizontal fixed pubic symphysis.
Described pubic symphysis top down is a stay bolt, and it is pullover that itself and the contacted end of pubis are surrounded by the rubber protection.
The top is a stay bolt behind the described pubic symphysis, and it is pullover that itself and the inboard contacted end of pubic symphysis are surrounded by the rubber protection.
A kind of base that is used for stationary fixture for pelvis biomechanics experiment, this base comprise track, the first femur holddown groove, the second femur holddown groove, chassis, the first adjustment layer, the second adjustment layer, base bottom.
Described track is fixed on the upper surface on chassis, matches with connecting rod on the anchor clamps, realizes connecting rod moving up and down in orbit.
The described first femur holddown groove and the second femur holddown groove all are fixed on the upper surface on chassis, and the first femur holddown groove and the second femur holddown groove lay respectively at the both sides of track.
The chassis is fixed on the upper surface of the first adjustment layer.
Described first adjusts layer is provided with locating slot A parallel to each other, locating slot B; Bolt H passes the upper surface that locating slot A is connected the second adjustment layer, and bolt I passes the upper surface that locating slot B is connected the second adjustment layer; Locating slot A slides relatively along bolt H, and locating slot B slides relatively along bolt I, realizes that first adjusts the motion of layer at the second adjustment layer upper surface.
On the described second adjustment layer locating slot C parallel to each other, locating slot D are set; Bolt J passes the upper surface that locating slot C is connected the base bottom, and bolt K passes the upper surface that locating slot D is connected the second adjustment layer; Locating slot C slides relatively along bolt J, and locating slot D slides relatively along bolt K, realizes that second adjusts the motion of layer at base bottom upper surface; The direction of motion of the direction of motion of the described first adjustment layer and the second adjustment layer is vertical.
The interface that the setting of base bottom matches with testing machine.
Described locating slot A, locating slot B, locating slot C and locating slot D are step trough; And locating slot A and locating slot C are orthogonal.
The invention has the advantages that:
(1) anchor clamps provided by the invention guarantee that pelvis is fixed in the erect position attitude, so that carry out the test of pelvis erect position;
(2) installation and removal of anchor clamps can not damage the sclerotin and the structure of pelvis;
(3) use anchor clamps provided by the invention, different researcheres are when carrying out same pelvis biomechanics experiment, required pelvis stationary fixture and the base thereof of contrived experiment saved unnecessary repeated labor voluntarily, and the reference mutually of experimental result each other.
Description of drawings
Fig. 1 is a kind of stationary fixture for pelvis biomechanics experiment structural representation of the present invention.
Fig. 2 is a pubic tubercle baffle plate syndeton sketch map among the present invention;
Fig. 3 is a superior margin of pubic symphysis top slab connecting structure sketch map among the present invention;
Fig. 4 is a middle orbit mounting structure sketch map of the present invention;
Fig. 5 is a middle orbit internal structure sketch map of the present invention;
Fig. 6 is that the present invention's first adjustment layer, the second adjustment layer, base fabric and position thereof concern sketch map;
Among the figure:
1 anchor clamps
101 first anterior superior iliac spine baffle plates, 102 second anterior superior iliac spine baffle plates, 103 first anterior superior iliac spine baffle plate gusset plates
104 second anterior superior iliac spine baffle plate gusset plates, 105 bolt A, 106 bolt B
107 bolt C, 108 pubic tubercle baffle plates, 109 superior margin of pubic symphysis top boards
110 first rumpbone straps, 111 second rumpbone straps, 112 rumpbones are transverse slat fixedly
Come directly towards behind 113 pubic symphysis lower shoes, 114 connecting rods, 115 pubic symphysis
116 connecting rod holddown grooves, 117 chutes, 118 pubic symphysis are the top down
119 bolt D, 120 bolt E, 121 bar-shaped trough A
122 bar-shaped trough B, 123 bar-shaped trough C, 124 bolt F
125 bolt G, 2 bases
201 tracks, 202 first femur holddown grooves, 203 second femur holddown grooves
204 chassis 205 first are adjusted layer 206 second and are adjusted layer
207 base bottoms, 208 rollers, 209 locating slot A
210 locating slot B, 211 locating slot C, 212 locating slot D
213 bolt H, 214 bolt I, 215 bolt J
216 bolt K, 217 interfaces
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
As Fig. 1, the invention provides a kind of stationary fixture for pelvis biomechanics experiment, described anchor clamps 1 are connected with the biomechanics testing machine by base 2, and described anchor clamps 1 comprise: the first anterior superior iliac spine baffle plate 101, the second anterior superior iliac spine baffle plate 102, the first anterior superior iliac spine baffle plate gusset plate 103, the second anterior superior iliac spine baffle plate gusset plate 104, pubic tubercle baffle plate 108, superior margin of pubic symphysis top board 109, the first rumpbone strap 110, the second rumpbone strap 111, rumpbone is transverse slat 112 fixedly, pubic symphysis lower shoe 113, connecting rod 114, come directly towards 115 behind the pubic symphysis, pubic symphysis is top 118 down.
The described first anterior superior iliac spine baffle plate 101 is fixedlyed connected with the first anterior superior iliac spine baffle plate gusset plate 103, the second anterior superior iliac spine baffle plate 102 is fixedlyed connected with the second anterior superior iliac spine baffle plate gusset plate 104, and the first anterior superior iliac spine baffle plate gusset plate 103 and the second anterior superior iliac spine baffle plate gusset plate 104 are connected to the baffle plate both sides of pubic tubercle baffle plate 108; Superior margin of pubic symphysis top board 109 and pubic symphysis lower shoe 113 are connected to the same side of pubic tubercle baffle plate 108, and perpendicular to pubic tubercle baffle plate 108 planes; The upper surface of described superior margin of pubic symphysis top board 109 connects on the first rumpbone strap 110 and the second rumpbone strap, 111, the first rumpbone straps 110 and the second rumpbone strap 111 and is connected fixedly transverse slat 112 of rumpbone; The lower surface of superior margin of pubic symphysis top board 109 is connected with connecting rod 114 by holddown groove 116, and level comes directly towards 115 after connecting pubic symphysis on the connecting rod 114; Vertically pass top 118 under the pubic symphysis on the described pubic symphysis lower shoe 113.
As shown in Figure 2, described pubic tubercle baffle plate 108 is the vertical platy structures with dome arc upper limb, the center of described dome arc is movably connected in the both sides of pubic tubercle baffle plate 108 by bolt A105 with the first anterior superior iliac spine baffle plate gusset plate 103 and the second anterior superior iliac spine baffle plate gusset plate 104, and win anterior superior iliac spine baffle plate gusset plate 103 and the second anterior superior iliac spine baffle plate gusset plate 104 can be rotated for axle by bolt A105.The described first anterior superior iliac spine baffle plate 101 is fixedlyed connected with the first anterior superior iliac spine baffle plate gusset plate 103; The second anterior superior iliac spine baffle plate 102 is fixedlyed connected with the second anterior superior iliac spine baffle plate gusset plate 104; And the first anterior superior iliac spine baffle plate, 101 lower limb concave arcs are contacted with the top edge dome arc of pubic tubercle baffle plate 108; The lower limb concave arc of the second anterior superior iliac spine baffle plate 102 contacts with the top edge convex arc surface of pubic tubercle baffle plate 108, and makes win the anterior superior iliac spine baffle plate 101 and the second anterior superior iliac spine baffle plate 102 and pubic tubercle baffle plate 108 be positioned at same perpendicular.When the first anterior superior iliac spine baffle plate gusset plate 103 and the second anterior superior iliac spine baffle plate gusset plate 104 serve as axle when rotating with bolt A105, drive the first anterior superior iliac spine baffle plate 101 and the second anterior superior iliac spine baffle plate 102 rotates.Dome arc upper limb at described pubic tubercle baffle plate 108 is provided with arc chute 117, as shown in Figure 2, the first anterior superior iliac spine baffle plate gusset plate 103 is movably connected in the chute 117 by bolt B 106, the second anterior superior iliac spine baffle plate gusset plate 104 is movably connected in the chute 117 by bolt C107, when the first anterior superior iliac spine baffle plate gusset plate 103 and the second anterior superior iliac spine baffle plate gusset plate 104 rotate, bolt B 106 and bolt C107 slide in chute 117, realize that angle between the first anterior superior iliac spine baffle plate 101 and the second anterior superior iliac spine baffle plate 102 is from 30 °～180 ° adjustment and fixing.The 117 pairs first anterior superior iliac spine baffle plates 101 of chute and the second anterior superior iliac spine baffle plate 102 play effect spacing and guiding.
During sectional fixture, the angle according between the pelvis size adjustment first anterior superior iliac spine flapper arm 101 and the second anterior superior iliac spine baffle plate 102 contacts the first anterior superior iliac spine baffle plate 101, the second anterior superior iliac spine baffle plate 102 respectively with two anterior superior iliac spine.
The described first anterior superior iliac spine baffle plate 101, the second anterior superior iliac spine baffle plate 102 and pubic tubercle baffle plate 108 are positioned at same plane, have guaranteed that both sides anterior superior iliac spine and pubic tubercle are positioned at same coronalplane.
As shown in Figure 2, superior margin of pubic symphysis top board 109 and pubic tubercle baffle plate 108 orthogonal fixedlying connected, pubic symphysis lower shoe 113 and pubic tubercle baffle plate 108 orthogonal fixedlying connected, superior margin of pubic symphysis top board 109 is positioned at the homonymy of pubic tubercle baffle plate 108 with pubic symphysis lower shoe 113, and is parallel to each other.
Described superior margin of pubic symphysis top board 109 is a saddle, to adapt to the triangle opening shape of pelvis inferior ramus of pubis.
As shown in Figure 1, pubic symphysis down top 118 passes from the vertical hole of pubic symphysis lower shoe 113, is used for the vertical fixing lower margin of pubic bone; Top 115 is passed from connecting rod 114 intermediary lateral apertures behind the pubic symphysis, is used for horizontal fixed pubic symphysis inboard.
Described pubic symphysis top 118 down is a stay bolt, and it is pullover that itself and the contacted end of pubis are surrounded by the rubber protection.Top 115 is a stay bolt behind the described pubic symphysis, and it is pullover that itself and the inboard contacted end of pubic symphysis are surrounded by the rubber protection.The protection of described rubber is pullover to cause damage to pubic symphysis when being used to prevent loading and unloading clamp;
During sectional fixture, regulate the pubic symphysis upper-lower position of top 118 down, withstand lower margin of pubic bone; The front and back position of top 115 withstands the pubic symphysis inboard behind the adjusting pubic symphysis, limits about the pubis and the front and back displacement, realizes fixing pubic symphysis.
As shown in Figure 3, the upper surface of superior margin of pubic symphysis top board 109 is rotatably connected to the first rumpbone strap 110 and the second rumpbone strap 111; Have bar-shaped trough B 122 on the first rumpbone strap 110, have bar-shaped trough C123 on the second rumpbone strap 111, rumpbone fixedly vertically has bar-shaped trough A121 in transverse slat 112 middle parts, flexibly connect bolt F124 between bar-shaped trough A121 and the bar-shaped trough B122, flexibly connect bolt G125 between bar-shaped trough A121 and the bar-shaped trough C123;
During sectional fixture, the first rumpbone strap 110 and the second rumpbone strap 111 clamp rumpbone respectively from the second sacral vertebra both sides, and fixedly transverse slat 112 is from the rumpbone rear clamp for rumpbone, and tight a bolt then F124 and bolt G125 realize fixing rumpbone.
As Fig. 1, shown in Figure 3, connecting rod holddown groove 116 is arranged on the lower surface of superior margin of pubic symphysis top board 109, is used for fixing connecting rod 114; Connecting rod 114 is fixed on the inside of connecting rod holddown groove 116, is used for matching with base 2.Described base 2 is used for fixing sectional fixture 1, and anchor clamps 1 are connected on the mechanical test machine.As Fig. 1, described base 2 comprises: track 201, the first femur holddown groove 202, the second femur holddown groove 203, chassis 204, first are adjusted layer 205, second and are adjusted layer 206, base bottom 207.
As shown in Figure 4, described track 201 is fixed on the upper surface on chassis 204, matches with the connecting rod 114 of anchor clamps 1, realizes connecting rod 114 moving up and down in track 201; The described first femur holddown groove 202 and the second femur holddown groove 203 all are fixed on the upper surface on chassis 204, and the first femur holddown groove 202 and the second femur holddown groove 203 lay respectively at the both sides of track 201; The lower surface on chassis 204 is connected first and adjusts layer 205 upper surface, and first adjusts layer 205 is connected the second adjustment layer, 206 upper surface, and second adjusts base bottom 207 upper surfaces that layer 206 connects.
The first femur holddown groove 202 and the second femur holddown groove 203 are used for installing and resected femur, when adopting the biped erect position for the experiment attitude, the lower end of two femurs is placed on respectively in the first femur holddown groove 202 and the second femur holddown groove 203, adjust the femoral head angle according to requirement of experiment, be fixed in the first femur holddown groove 202 and the second femur holddown groove 203 with the lower end of dental base acrylic resin powder then two femurs; When adopting the neutral position of monopodia pelvis for the experiment attitude, the lower end of a femur is placed in the first femur holddown groove 202 or the second femur holddown groove 203, adjust the femoral head angle according to requirement of experiment, with dental base acrylic resin powder femur is fixed in the first femur holddown groove 202 or the second femur holddown groove 203 then.
Described track 201 is by the cuboid of a hollow of four track baffle plate one-tenth bonded to each other, and as shown in Figure 5, every track baffle inner wall all is fixed with roller 208, guarantees connecting rod 114 easy on and off mobile track 201 in.
As shown in Figure 6, the described first adjustment layer 205 is provided with two locating slot A209 parallel to each other, locating slot B210; Bolt H213 passes the upper surface that locating slot A209 is connected the second adjustment layer 206, and bolt 1214 passes the upper surface that locating slot B210 is connected the second adjustment layer 206; Locating slot A209 slides relatively along bolt H213, and locating slot B210 slides relatively along bolt I214, realizes that first adjusts the motion of layer 205 at the second adjustment layer, 206 upper surface; As shown in Figure 6, on the described second adjustment layer 206 locating slot C211 parallel to each other, locating slot D212 are set; Bolt J215 passes the upper surface that locating slot C211 is connected base bottom 207, and bolt K216 passes the upper surface that locating slot D212 is connected base bottom 207; Locating slot C211 slides relatively along bolt J215, and locating slot D212 slides relatively along bolt K216, realizes that second adjusts layer 206 motion at base bottom 207 upper surfaces; The direction of motion of the direction of motion of the described first adjustment layer 205 and the second adjustment layer 206 is vertical, is used to regulate the position all around of base 2.Above-mentionedly be used to regulate first and adjust layer 205 and second and adjust bolt J215, bolt K216, bolt I214, the bolt H213 of layer 206 direction of motion and also two or more can be set, adjust the accuracy that layer 205 and second is adjusted layer 206 direction of motion to guarantee first.
Described locating slot A209, locating slot B210, locating slot C211, locating slot D212 are step trough, are used to tighten set bolt H213, bolt I214, bolt J215, bolt K216.As shown in Figure 6, the described first adjustment layer 205 and second is adjusted between the layer 206 and is provided with groove and boss structure, first adjusts layer 205 lower surface is provided with groove structure, and described groove structure and locating slot A209 are parallel to each other, second adjusts layer 206 upper surface is provided with boss structure, and the groove that this boss and above-mentioned first is adjusted layer 205 lower surface matches; Be provided with groove and boss equally between described second adjustment layer 206 and the base bottom 207, it is vertical with the boss structure of its upper surface that the second adjustment layer, 206 lower surface are provided with groove structure, and described groove structure and locating slot C211 are parallel to each other, base bottom 207 upper surfaces are provided with boss structure, and the groove that the boss of same base bottom 207 upper surfaces and second is adjusted layer 206 lower surface matches.
Described first adjusts the surface area of the surface area of layer 205 less than the second adjustment layer 206, and second adjusts the surface area of the surface area of layer 206 less than base bottom 207, guarantees construction bolt and the convenience of regulating direction, easy operating.
During sectional fixture 1: use fixedly pelvis of anchor clamps 1 earlier; Then connecting rod 114 is inserted in the track 201 of base 2; Chassis 204 is fixed on the upper surface of the first adjustment layer 205; Adjust layer 205 and second by first and adjust the position all around that layer 206 is adjusted chassis 204, the H213 that tights a bolt, bolt I214, bolt J215, bolt K216; Realize being connected of bases 2 and mechanical test machine by interface 217 at last, finish the installation of anchor clamps 1.
Claims (9)
1, a kind of stationary fixture for pelvis biomechanics experiment, it is characterized in that: described anchor clamps (1) are connected with the mechanical test machine by base (2), and these anchor clamps (1) comprise the first anterior superior iliac spine baffle plate (101), the second anterior superior iliac spine baffle plate (102), the first anterior superior iliac spine baffle plate gusset plate (103), the second anterior superior iliac spine baffle plate gusset plate (104), pubic tubercle baffle plate (108), superior margin of pubic symphysis top board (109), the first rumpbone strap (110), the second rumpbone strap (111), rumpbone is transverse slat (112) fixedly, pubic symphysis lower shoe (113), connecting rod (114), top (115) behind the pubic symphysis, pubic symphysis is top (118) down;
The first anterior superior iliac spine baffle plate (101) is fixedlyed connected with the first anterior superior iliac spine baffle plate gusset plate (103); The second anterior superior iliac spine baffle plate (102) is fixedlyed connected with the second anterior superior iliac spine baffle plate gusset plate (104); The first anterior superior iliac spine baffle plate gusset plate (103), the second anterior superior iliac spine baffle plate gusset plate (104) flexibly connect by bolt A (105) with pubic tubercle baffle plate (108) upper end, and make the first anterior superior iliac spine baffle plate (101) and the second anterior superior iliac spine baffle plate (102) be positioned at same perpendicular with pubic tubercle baffle plate (108); Have arc chute (117) on the pubic tubercle baffle plate (108), the first anterior superior iliac spine baffle plate gusset plate (103) is movably connected in the chute (117) by bolt B (106), and the second anterior superior iliac spine baffle plate gusset plate (104) is movably connected in the chute (117) by bolt C (107);
Superior margin of pubic symphysis top board (109) and orthogonal the fixedlying connected of pubic tubercle baffle plate (108), pubic symphysis lower shoe (113) and orthogonal the fixedlying connected of pubic tubercle baffle plate (108), superior margin of pubic symphysis top board (109) is positioned at the homonymy of pubic tubercle baffle plate (108) with pubic symphysis lower shoe (113), and is parallel to each other;
The first rumpbone strap (110) is rotatably connected on the upper surface of superior margin of pubic symphysis top board (109) by bolt D (119), and the second rumpbone strap (111) is rotatably connected on the upper surface that is rotatably connected on superior margin of pubic symphysis top board (109) by bolt E (120); Rumpbone fixedly vertically has bar-shaped trough A (121) in transverse slat (112) middle part, has bar-shaped trough B (122) on the first rumpbone strap (110), has bar-shaped trough C (123) on the second rumpbone strap (111); Flexibly connect by bolt F (124) between bar-shaped trough A (121) and the bar-shaped trough B (122), flexibly connect by bolt G (125) between bar-shaped trough A (121) and the bar-shaped trough C (123);
Lower surface at superior margin of pubic symphysis top board (109) is provided with connecting rod holddown groove (116), is used for fixing connecting rod (114); Connecting rod (114) is fixed on the inside of connecting rod holddown groove (116), is used for matching with base (2);
Pubic symphysis top (118) down passes from the vertical hole of pubic symphysis lower shoe (113), is used for the vertical fixing lower margin of pubic bone; Top (115) is passed from the intermediary lateral aperture of connecting rod (114) behind the pubic symphysis, is used for horizontal fixed pubic symphysis inboard.
2, a kind of stationary fixture for pelvis biomechanics experiment according to claim 1, it is characterized in that: described bolt B (106) and bolt C (107) slide in chute (117), realize the angle variation from 30 ° to 180 ° between the first anterior superior iliac spine baffle plate (101) and the second anterior superior iliac spine baffle plate (102); Chute (117) plays effect spacing and guiding to the first anterior superior iliac spine baffle plate (101) and the second anterior superior iliac spine baffle plate (102).
3, a kind of stationary fixture for pelvis biomechanics experiment according to claim 1; it is characterized in that: top (115) was the stay bolt structure after described pubic symphysis came directly towards (118) and pubic symphysis down, and it is pullover that itself and the contacted end of lower margin of pubic bone or inboard are surrounded by the rubber protection.
4, a kind of stationary fixture for pelvis biomechanics experiment according to claim 1 is characterized in that: described superior margin of pubic symphysis top board (109) is a saddle.
5, stationary fixture for pelvis biomechanics experiment according to claim 1 is characterized in that: described base (2) comprises track (201), the first femur holddown groove (202), the second femur holddown groove (203), chassis (204), the first adjustment layer (205), second adjustment layer (206), a base bottom (207);
Described track (201) is fixed on the upper surface of chassis (204), matches with connecting rod (114) on the anchor clamps (1), realizes connecting rod (114) moving up and down in track (201);
The described first femur holddown groove (202) and the second femur holddown groove (203) all are fixed on the upper surface of chassis (204), and the first femur holddown groove (202) and the second femur holddown groove (203) lay respectively at the both sides of track (201);
Described chassis (204) is fixed on the upper surface of the first adjustment layer (205);
First adjusts layer (205) is provided with two locating slot A (209) parallel to each other, locating slot B (210); Bolt H (213) passes the upper surface that locating slot A (209) is connected the second adjustment layer (206), and bolt I (214) passes the upper surface that locating slot B (210) is connected the second adjustment layer (206); Locating slot A (209) slides relatively along bolt H (213), and locating slot B (210) slides along bolt I (214) is relative, realizes that first adjusts the motion of layer (205) at second adjustment layer (206) upper surface;
Second adjusts layer (206) is provided with two locating slot C (211) parallel to each other, locating slot D (212); Bolt J (215) passes the upper surface that locating slot C (211) is connected base bottom (207), and bolt K (216) passes the upper surface that locating slot D (212) is connected base bottom (207); Locating slot C (211) slides relatively along bolt J (215), and locating slot D (212) slides relatively along bolt K (216), realizes that second adjusts the motion of layer (206) at base bottom (207) upper surface; The direction of motion of the direction of motion of the described first adjustment layer (205) and the second adjustment layer (206) is vertical;
Base bottom (207) is provided with the interface (217) that matches with testing machine.
6, the base of a kind of stationary fixture for pelvis biomechanics experiment according to claim 5 is characterized in that, described locating slot A (209), locating slot B (210), locating slot C (211) and locating slot D (212) are step trough;
And locating slot A (209) and locating slot C (211) are orthogonal.
7, the base of a kind of stationary fixture for pelvis biomechanics experiment according to claim 5, it is characterized in that, the described first adjustment layer (205) and second is adjusted between the layer (206) and is provided with groove and boss, first adjusts layer (205) lower surface is provided with groove structure, and described groove structure and locating slot A (209) are parallel to each other, second adjusts layer (206) upper surface is provided with boss structure, and the groove that this boss and above-mentioned first is adjusted layer (205) lower surface matches; Be provided with groove and boss equally between described second adjustment layer (206) and the base bottom (207), second adjusts layer (206) lower surface is provided with groove structure, and described groove structure and locating slot C (211) are parallel to each other, base bottom (207) upper surface is provided with boss structure, and the groove that the boss of same base bottom (207) upper surface and second is adjusted layer (206) lower surface matches.
8, the base of a kind of stationary fixture for pelvis biomechanics experiment according to claim 5, it is characterized in that, described bolt J (215), bolt K (216), bolt I (214), bolt H (213) are provided with two or more, adjust the accuracy that layer 205 and second is adjusted layer 206 direction of motion to guarantee first.
9, the base of a kind of stationary fixture for pelvis biomechanics experiment according to claim 5, it is characterized in that: described first adjusts the surface area of the surface area of layer (205) less than the second adjustment layer (206), and second adjusts the surface area of the surface area of layer (206) less than base bottom (207).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100924352A CN101653380B (en) | 2009-09-14 | 2009-09-14 | Stationary fixture for pelvis biomechanics experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100924352A CN101653380B (en) | 2009-09-14 | 2009-09-14 | Stationary fixture for pelvis biomechanics experiment |
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| Publication Number | Publication Date |
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| CN101653380A true CN101653380A (en) | 2010-02-24 |
| CN101653380B CN101653380B (en) | 2011-01-05 |
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| CN2009100924352A Expired - Fee Related CN101653380B (en) | 2009-09-14 | 2009-09-14 | Stationary fixture for pelvis biomechanics experiment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872209A (en) * | 2017-03-16 | 2017-06-20 | 徐州工程学院 | A kind of shallow-layer sediment columnar sampler |
| CN108065941A (en) * | 2018-01-31 | 2018-05-25 | 夏国兰 | A kind of new blood drawing care device |
-
2009
- 2009-09-14 CN CN2009100924352A patent/CN101653380B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872209A (en) * | 2017-03-16 | 2017-06-20 | 徐州工程学院 | A kind of shallow-layer sediment columnar sampler |
| CN108065941A (en) * | 2018-01-31 | 2018-05-25 | 夏国兰 | A kind of new blood drawing care device |
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| Publication number | Publication date |
|---|---|
| CN101653380B (en) | 2011-01-05 |
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