External fixation support for minimally invasive percutaneous fixation of carpohnavicular bone
Technical Field
The invention relates to the technical field of a scaphoid support, in particular to an external fixing support for minimally invasive percutaneous fixing of scaphoid.
Background
The carpohemoral bone is a bone in the human wrist joint, which is located near the wrist joint and connects the radius and the near wrist bone.
The patent with the patent publication number of CN111568518B relates to an external fixing support for minimally invasive percutaneous fixation of carpohnavicular bone, and relates to the field of medical appliances, and the external fixing support comprises a connecting frame, two limb fixing frames, two fixing frame position adjusting mechanisms, an aiming sleeve and an aiming sleeve fixing frame, wherein the two limb fixing frames are arranged at intervals and correspond to the two fixing frame position adjusting mechanisms one by one; the limb fixing frame comprises a screw rod, two slide bars, two slide blocks and two fixed bone calipers, wherein the screw rod is parallel to the two slide bars and is arranged at intervals, threads with opposite directions are respectively arranged at two ends of the screw rod, and the two slide blocks are in threaded fit with the two ends of the screw rod in a one-to-one correspondence manner and are in sliding fit with the two slide bars; the two fixed bone calipers are connected with the two sliding blocks in a one-to-one correspondence manner, and one end of the screw rod is rotationally connected with the fixing frame position adjusting mechanism. The external fixing support for minimally invasive percutaneous fixation of the carpohnavicular bone has the advantages of being convenient to operate, high in operation efficiency, high in accuracy and high in safety.
In the above-mentioned patent, the outer fixed bolster of wifery percutaneous fixed wrist navicular has convenient operation, and the operation is efficient, and the accuracy is high and the security is high advantage, but when supporting patient's hand through the outer fixed bolster, can produce the influence to patient's recovery when the position of outer fixed bolster produces the skew, is difficult to in time correct the direction when the position of outer fixed bolster produces the skew.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an external fixing bracket for minimally invasive percutaneous fixation of the carpohnavicular bone, which solves the problems in the prior art.
In order to achieve the above purpose, the invention is realized by the following technical scheme: an external fixing bracket for minimally invasive percutaneous fixation of carpal navicular bone comprises a supporting frame, a limiting device and a clamping device; the surface of the supporting frame is sleeved with a sleeve block, a fastening bolt is arranged in the sleeve block through threads, and a supporting rod is fixedly arranged on the surface of the sleeve block; wherein, restriction device includes slope piece, crooked pole, slider, rubber wheel, triangle-shaped piece, can drive the rubber wheel and remove when the slider removes, can laminate the surface at the support frame when the rubber wheel removes, the top of cover piece is run through in the slope piece slip, crooked pole fixed mounting is on the surface of slope piece, slider slidable mounting is at the surface of cover piece, the rubber wheel rotates the top of installing at the slider, triangle-shaped piece fixed mounting is at the surface of slider, be provided with the spiral spring between rubber wheel and the slider, can restrict to overlap piece and bracing piece through the rubber wheel and rotate.
According to the technical scheme, the top fixed mounting of cover piece has the fixed plate, the surface rotation of fixed plate installs the gyro wheel, the surface fixed mounting of gyro wheel has the stripper plate, the surface fixed mounting of fixed plate has alarm switch, alarm switch's control end fixed mounting has the convex piece, the recess is seted up at the top of rubber wheel, can contact with the convex piece when the stripper plate rotates, can press the control end of convex piece and alarm switch when making the stripper plate remove to can open the siren, the position that the position production skew of warning cover piece needs to correct the bracing piece.
According to the technical scheme, clamping device includes movable block, horizontal pole, rack, threaded rod, nut, contact plate, catch bar, trapezoidal piece and elasticity expansion plate, can carry out the centre gripping to the hand when the rack removes, the hand of patient can promote the contact plate and remove when the rack is too big to the hand clamping force of patient, can drive the catch bar and remove when the contact plate removes, can with the inclined plane contact of trapezoidal piece when the catch bar removes, can promote trapezoidal piece and upwards remove when making the catch bar remove, can drive elasticity expansion plate and upwards remove the inside of inserting the draw-in groove when trapezoidal piece upwards moves, can restrict trapezoidal piece and rack through the inside of elasticity expansion plate insertion draw-in groove and remove, the movable block cup joints the surface at the bracing piece, horizontal pole fixed mounting is in the bottom of movable block, rack slidable mounting is in the bottom of horizontal pole, threaded rod fixed mounting is at the surface of threaded rod, contact plate slidable mounting is at the inside of rack, catch bar fixed mounting can promote the inside of contact plate, trapezoidal piece slidable mounting is at the inside of clamp groove can not be prevented to the excessive extrusion to the inside of the expansion plate, the inside of the expansion plate is equipped with the expansion plate to the inside extrusion to the side of the expansion plate is carried out to the expansion plate.
According to the technical scheme, the free end top of elastic expansion plate sets up to the inclined plane, makes the draw-in groove can extrude the elastic expansion plate through inclined plane and draw-in groove contact and produce the shrink for the elastic expansion plate can not influence the rack and move on the back of the body, be provided with a spring between contact plate and the rack, the bottom fixed mounting of horizontal pole has the T shaped plate, the surface sliding of rack installs presses the briquetting, presses the inclined plane of briquetting can with the contact of T shaped plate when pressing the briquetting and remove for the T shaped plate can promote to press the briquetting and reciprocate, be provided with No. two springs between pressing the briquetting and the rack, pressing one side that the piece is close to the T shaped plate sets up to the inclined plane, makes the pressing plate can restrict the hand reciprocates.
According to the technical scheme, still include degassing unit and break away from the device, the bottom of rack is provided with degassing unit, and degassing unit includes storage frame, division board, hollow slab, sprays board, spray gate and fastening plate, can extrude the inside antiseptic solution of storage frame and spray gate blowout through hollow slab and spray gate when the division board removes, storage frame fixed mounting is in the bottom of rack, division board slidable mounting is in the inside of storage frame, hollow slab fixed mounting is on the surface of division board, spray board fixed mounting is on the surface of hollow slab, spray gate rotation is installed at the top of spraying the board, fastening plate fixed mounting is in the inside of storage frame, the connecting hole has been seted up to the inside of fastening plate, be provided with No. three springs between division board and the storage frame, avoid different patients to use the rack to produce cross infection, can quantitatively increase antiseptic solution through the connecting hole of fastening plate inside, avoid the antiseptic solution of spraying too much.
According to the technical scheme, the elastic rod is penetrated in a sliding manner between the inner wall and the outer wall of the storage frame, the lug is fixedly arranged on the surface of the spraying port, the spring with the number four is arranged between the elastic rod and the storage frame, the torsion spring is arranged between the spraying port and the spraying plate, the elastic rod can push the spraying port to swing when the elastic rod and the lug collide with each other, and the effect of spraying disinfectant through the spraying port can be improved by swinging.
According to the technical scheme, the disengaging gear comprises a friction block, a fixing frame, a clamping block and a connecting block, the friction block can be driven to move upwards under the action of a reset spring, the bottom of the friction block which moves upwards can be in contact with a nut, a sliding groove is formed in the surface of the moving block, the friction block is slidably mounted in the sliding groove, the reset spring is arranged between the friction block and the sliding groove, the fixing frame is fixedly mounted at the top of the moving block, a limit groove is formed in the surface of the friction block, the clamping block slidably penetrates through the fixing frame, the connecting block is rotatably mounted on the surface of the clamping block, the friction block can be driven to move upwards to drive the nut to rotate under the action of the reset spring, the clamping of a hand of a placing frame can be rapidly removed through the rotation of the nut, discomfort of the hand caused by the placing frame is avoided, and the effect of preventing error touch of the clamping block can be achieved through the connecting block.
According to the technical scheme, the surface of horizontal pole has seted up the breach, the inside rotation of breach is installed the rolling wheel, the surface winding of rolling wheel has the belt, the bottom and the belt of friction block are fixed, be provided with clockwork spring between rolling wheel and the breach, upwards move through the belt and can contact with the nut, can drive the nut through the belt and continue to rotate, drive the nut through the belt and rotate and can increase nut pivoted number of turns.
The invention provides an external fixing bracket for minimally invasive percutaneous fixation of carpohnavicular bones. The beneficial effects are as follows:
(1) This fixed wrist bone's of wicresoft percutaneous external fixation support can fasten the cover piece on the support frame through the bolt, can extrude slope piece and crooked pole upward movement when the bolt removes, and crooked pole upward movement can promote triangle-shaped piece and slider and remove for the rubber wheel can laminate and restrict the cover piece and produce and rotate on the support frame, can drive rubber wheel and gyro wheel when the cover piece produces to rotate, and the stripper plate can press convex piece and alarm switch when the gyro wheel rotates, and the position that the position production skew of warning cover piece needs to correct the position of bracing piece.
(2) This fixed wrist navicular's of wicresoft skin external fixation support limits patient's hand through placing the removal, and the catch bar can promote trapezoidal piece and elastic expansion board upward movement when the contact plate receives the extrusion simultaneously, and elastic expansion board upward movement can insert the inside restriction rack of draw-in groove and excessively remove in opposite directions and extrude the hand, avoids excessively extruding the hand and makes patient produce the discomfort, and the T shaped plate can extrude simultaneously and press the piece and move down, presses the piece and moves down and can restrict hand reciprocates and influence rehabilitation.
(3) This fixed wrist navicular's of wicresoft skin external fixation support can drive the storage frame and remove when the rack moves down, can extrude each other when spraying the board contact so that the division board can extrude the antiseptic solution of storage frame inside for the antiseptic solution can be followed the spraying mouth blowout and disinfect rack and pressing the board, avoids different patients to use the rack to produce cross infection, can quantitatively increase the antiseptic solution through the connecting hole of fastening plate inside, avoids the antiseptic solution that sprays too much.
(4) This fixed wrist navicular's of wicresoft skin external fixation support, patient's hand produces untimely, rotate the connecting block and then pull the screens piece and can remove spacing to the clutch blocks, can drive the clutch blocks and upwards move under reset spring's effect and drive the nut and rotate, can remove the centre gripping that the rack can the hand fast through the nut rotation, avoid the rack to cause the discomfort of hand, can play the effect of preventing the mistake touch to the screens piece through the connecting block, can pull the belt and remove when the clutch blocks remove simultaneously, the belt removes and can continue to drive the nut and rotate, the effect of placing the board and loosening the hand has been improved, drive the nut earlier through the clutch blocks and rotate, avoid nut and threaded rod too fastening can't drive the nut first time rotation through the belt.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the portion A of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the position structure of the sliding block and the sleeve block according to the present invention;
FIG. 4 is a schematic view of the cross bar and rack position structure of the present invention;
FIG. 5 is an enlarged schematic view of the portion B of FIG. 4 according to the present invention;
FIG. 6 is a schematic diagram of the internal structure of a storage frame according to the present invention;
FIG. 7 is a schematic view of the location structure of the fastening plate and the connection port of the present invention;
FIG. 8 is a schematic view of the position of the take-up reel and belt according to the present invention;
FIG. 9 is a schematic view of the positioning structure of the clamping block and the friction block according to the present invention.
In the figure: 1. a support frame; 2. sleeving blocks; 3. a support rod; 4. a fastening bolt; 51. a tilting block; 52. bending the rod; 53. a slide block; 54. a rubber wheel; 55. triangular blocks; 56. a fixing plate; 57. a roller; 58. an extrusion plate; 59. an alarm switch; 510. a male block; 61. a moving block; 62. a cross bar; 63. a placing rack; 64. a threaded rod; 65. a nut; 66. a contact plate; 67. a push rod; 68. a trapezoid block; 69. an elastic expansion plate; 71. pressing the blocks; 72. a T-shaped plate; 81. a storage frame; 82. a partition plate; 83. a hollow slab; 84. a spray plate; 85. a spray port; 86. a fastening plate; 87. an elastic rod; 88. a bump; 91. a friction block; 92. a fixing frame; 93. a clamping block; 94. a connecting block; 95. a winding wheel; 96. a belt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, one embodiment of the present invention is: an external fixing bracket for minimally invasive percutaneous fixation of carpal navicular bone comprises a supporting frame 1, a limiting device and a clamping device; the surface of the support frame 1 is sleeved with a sleeve block 2, a fastening bolt 4 is arranged in an internal thread of the sleeve block 2, and a support rod 3 is fixedly arranged on the surface of the sleeve block 2; the limiting device comprises an inclined block 51, a bending rod 52, a sliding block 53, a rubber wheel 54 and a triangular block 55, wherein the inclined block 51 can drive the bending rod 52 to move upwards when moving upwards, the bending rod 52 can be contacted with the triangular block 55 when moving, the triangular block 55 and the sliding block 53 can be pushed to move when moving the bending rod 52, the rubber wheel 54 can be driven to move when moving the sliding block 53, the rubber wheel 54 can be attached to the surface of the supporting frame 1 when moving, the inclined block 51 slides to penetrate through the top of the sleeve block 2, the bending rod 52 is fixedly arranged on the surface of the inclined block 51, the sliding block 53 is slidably arranged on the surface of the sleeve block 2, the rubber wheel 54 is rotatably arranged on the top of the sliding block 53, the triangular block 55 is fixedly arranged on the surface of the sliding block 53, a scroll spring is arranged between the rubber wheel 54 and the sliding block 53, and the sleeve block 2 and the supporting rod 3 can be limited to rotate through the rubber wheel 54.
The top fixed mounting of cover piece 2 has fixed plate 56, the surface rotation of fixed plate 56 installs gyro wheel 57, the surface mounting of gyro wheel 57 has stripper plate 58, the surface mounting of fixed plate 56 has alarm switch 59, the control end fixed mounting of alarm switch 59 has convex piece 510, the top of rubber wheel 54 is seted up flutedly, the rubber wheel 54 rotates can drive gyro wheel 57 and rotate, can drive stripper plate 58 and rotate when gyro wheel 57 rotates, can contact with convex piece 510 when stripper plate 58 rotates, can press the control end of convex piece 510 and alarm switch 59 when making stripper plate 58 remove, thereby can open the siren, the position that the position of warning cover piece 2 produces the skew and need rectify bracing piece 3.
Clamping device includes movable block 61, horizontal pole 62, rack 63, threaded rod 64, nut 65, contact plate 66, push rod 67, trapezoidal piece 68 and elasticity expansion plate 69, can carry out the centre gripping to the hand when rack 63 removes, the contact plate 66 can be pushed to the hand of patient when rack 63 is too big to patient's hand clamping force, can drive push rod 67 and remove when contact plate 66 removes, can contact with the inclined plane of trapezoidal piece 68 when push rod 67 removes, can promote trapezoidal piece 68 and upwards remove when making push rod 67 remove, can drive elasticity expansion plate 69 and upwards remove when trapezoidal piece 68 upwards remove, elasticity expansion plate 69 upwards removes the inside of inserting the draw-in groove, can restrict trapezoidal piece 68 and rack 63 through the inside of elasticity expansion plate 69 insertion draw-in groove, movable block 61 cup joints the surface at bracing piece 3, horizontal pole 62 fixed mounting is in the bottom of movable block 61, threaded rod 64 fixed mounting is in the bottom of horizontal pole 62, threaded rod 64 top, nut 65 screw thread mounting is at the surface of 64, contact plate 66 slidable mounting is in the inside of rack 63, can promote trapezoidal piece 68 and upwards remove at the inside of rack 67, can carry out the inside of extrusion expansion plate 69 to the inside of expansion plate 69, the excessive side-mounting at the surface mounting at the top of rack 63 is avoided moving to the surface of the side of rack 63, the excessive expansion plate is carried out to the inside of expansion plate 69, the inside extrusion expansion plate is avoided to be carried out to the surface mounting at the surface of the top of the expansion plate 69.
The free end top of elastic expansion plate 69 sets up to the inclined plane, make the draw-in groove can extrude elastic expansion plate 69 and produce the shrink through inclined plane and draw-in groove contact, make elastic expansion plate 69 can not influence rack 63 and move in opposite directions, be provided with a spring between contact plate 66 and the rack 63, the bottom fixed mounting of horizontal pole 62 has T shaped plate 72, the surface sliding of rack 63 installs press piece 71, press the inclined plane of press piece can with the contact of T shaped plate 72 when the press piece 71 removes, make T shaped plate 72 can promote press piece 71 downwardly moving, be provided with No. two springs between press piece 71 and the rack 63, one side that press piece 71 is close to T shaped plate 72 sets up to the inclined plane, make press piece 71 can restrict the hand reciprocates.
When the embodiment works, the moving sleeve block 2 can drive the supporting rod 3 to move, the rotating fastening bolt 4 can limit the sleeve block 2 on the supporting frame 1, the fastening bolt 4 can contact with the inclined surface of the inclined block 51 when moving, the inclined block 51 can be pushed to move upwards when moving the fastening bolt 4, the bending rod 52 can be driven to move upwards when moving the inclined block 51, the bending rod 52 can contact with the triangle block 55 when moving the bending rod 52, the triangle block 55 and the sliding block 53 can be pushed to move when moving the bending rod 52, the sliding block 53 can drive the rubber wheel 54 to move when moving the sliding block 53 can drive the groove to move, the groove can be separated from the bottom of the roller 57 when moving the rubber wheel 54, the rubber wheel 54 can contact with the roller 57 when moving, the rubber wheel 54 can be attached to the surface of the supporting frame 1, the supporting rod 3 can drive the sliding block 53 and the rubber wheel 54 to move when being extruded to rotate, the rubber wheel 54 can rotate through friction force between the rubber wheel 54 and the supporting frame 1, the rubber wheel 54 can rotate, the rubber wheel 54 can drive the roller 57 to rotate, the pressing plate 58 can rotate, the pressing plate 510 can be opened, and the alarm can be controlled to move, and the alarm can be opened;
The hand of a patient can be pushed to move by the contact plate 66 when the hand clamping force of the placement frame 63 to the patient is overlarge, the push rod 67 can be driven to move when the contact plate 66 moves, the push rod 67 can be contacted with the inclined surface of the trapezoid block 68 when moving, the trapezoid block 68 can be pushed to move upwards when the push rod 67 moves, the trapezoid block 68 can be driven to move upwards when moving upwards, the elastic expansion plate 69 can be pushed to move upwards to be inserted into the clamping groove, the trapezoid block 68 and the placement frame 63 can be limited to move through the elastic expansion plate 69, excessive clamping of the hand by the placement frame 63 is avoided, the pressing block 71 can be driven to move when the placement frame 63 moves, the inclined surface of the pressing block 71 can be contacted with the T-shaped plate 72 when the pressing block 71 moves, and the pressing block 71 can be pushed to move downwards when the pressing block 71 moves downwards.
Referring to fig. 1-9, in another embodiment of the present invention, based on the above embodiment, the disinfection device and the detachment device are further included, the bottom of the rack 63 is provided with the disinfection device, the disinfection device includes a storage frame 81, a partition plate 82, a hollow plate 83, a spraying plate 84, a spraying opening 85 and a fastening plate 86, when the storage frame 81 continues to move, the spraying plate 84 pushes the hollow plate 83 and the partition plate 82 to move toward the inside of the storage frame 81, when the partition plate 82 moves, the disinfection solution in the storage frame 81 is extruded to be sprayed from the spraying opening 85 through the hollow plate 83 and the spraying plate 84, the storage frame 81 is fixedly installed at the bottom of the rack 63, the partition plate 82 is slidably installed in the inside of the storage frame 81, the hollow plate 83 is fixedly installed on the surface of the partition plate 82, the spraying plate 84 is fixedly installed on the surface of the hollow plate 83, the spraying opening 85 is rotatably installed at the top of the spraying plate 84, the fastening plate 86 is fixedly installed in the inside of the storage frame 81, a connecting hole is formed in the inside of the fastening plate 86, a third spring is arranged between the partition plate 82 and the storage frame 81, so that cross infection caused by different patients can be avoided, and excessive disinfection solution can be quantitatively sprayed through the connecting hole inside the fastening plate 86.
The elastic rod 87 is penetrated between the inner wall and the outer wall of the storage frame 81 in a sliding manner, the convex block 88 is fixedly arranged on the surface of the spraying port 85, a spring with the number four is arranged between the elastic rod 87 and the storage frame 81, a torsion spring is arranged between the spraying port 85 and the spraying plate 84, the hollow plate 83 and the spraying plate 84 can drive the convex block 88 to move, the elastic rod 87 can be impacted when the convex block 88 moves, the elastic rod 87 can push the spraying port 85 to swing when the elastic rod 87 and the convex block 88 mutually impact, and the effect of spraying disinfectant by the spraying port 85 can be improved by swinging generated by the spraying port 85.
The disengaging gear includes friction block 91, mount 92, screens piece 93 and connecting block 94, can remove the spacing to friction block 91 when screens piece 93 breaks away from the inside of spacing groove, can drive friction block 91 upward movement under reset spring's effect, the bottom of friction block 91 upward movement friction block 91 can be contacted with nut 65, the spout has been seted up to the surface of movable block 61, friction block 91 slidable mounting is in the inside of spout, be provided with reset spring between friction block 91 and the spout, mount 92 fixed mounting is at the top of movable block 61, the spacing groove has been seted up on the surface of friction block 91, screens piece 93 slip runs through mount 92, connecting block 94 is rotated and is installed at the surface of screens piece 93, can drive the upward movement of friction block 91 and drive nut 65 and rotate under reset spring's effect, can remove the centre gripping that rack 63 can the hand fast through nut 65 rotation, avoid rack 63 to cause the uncomfortable of hand, can play the effect of preventing the mistake to touch screens piece 93 through connecting block 94.
The surface of horizontal pole 62 has seted up the breach, and the wind-up pulley 95 is installed in the inside rotation of breach, and the surface winding of wind-up pulley 95 has belt 96, and the bottom of friction block 91 is fixed with belt 96, is provided with the clockwork spring between wind-up pulley 95 and the breach, can pull belt 96 when the friction block 91 upwards moves, can contact with nut 65 through belt 96 upwards movement, can drive nut 65 through belt 96 and continue to rotate, drives nut 65 through belt 96 and rotates and can increase nut 65 pivoted number of turns.
When the embodiment works, the storage frame 81 is driven to move when the storage frame 63 moves, the hollow plate 83 and the spraying plate 84 are driven to move when the storage frame 81 moves, the spraying plate 84 is contacted with each other when the spraying plate 84 moves, the hollow plate 83 and the separation plate 82 are pushed to move towards the inside of the storage frame 81 when the storage frame 81 continues to move, the separation plate 82 can extrude disinfectant in the storage frame 81 to be sprayed out of the spraying port 85 through the hollow plate 83 and the spraying plate 84 when the separation plate 82 moves, the separation plate 82 is driven to reset through the third spring when the storage frame 63 moves back in opposite directions, the disinfectant in the storage frame 81 flows towards the left side of the separation plate 82 when the separation plate 82 moves between garbage holes, the convex block 88 is driven to move when the hollow plate 83 and the spraying plate 84 move, the elastic rod 87 is impacted when the convex block 88 moves, the elastic rod 87 and the convex block 88 are mutually impacted, and the elastic rod 87 can push the spraying port 85 to swing;
When the clamping of rack 63 to the hand is difficult to be relieved to patient's hand, rotate connecting block 94 and make connecting block 94 break away from with mount 92 for connecting block 94 can't carry out spacingly to clamping piece 93, then pulling clamping piece 93 moves to the direction of keeping away from the spacing groove, can release the spacing to friction piece 91 when clamping piece 93 breaks away from the inside of spacing groove, can drive friction piece 91 and upwards move under reset spring's effect, the bottom of friction piece 91 upwards moves friction piece 91 can be contacted with nut 65, the frictional force through friction piece 91 upwards moves can drive nut 65 and rotate, can drive threaded rod 64 and rack 63 and move mutually back through nut 65 when moving, can pull belt 96 upwards move when moving upwards, can contact with nut 65 through belt 96 upwards movement, can drive nut 65 and continue to rotate through belt 96.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.