CN112826608B - Portable traction frame in minimally invasive anterior hip joint replacement and using method thereof - Google Patents
Portable traction frame in minimally invasive anterior hip joint replacement and using method thereof Download PDFInfo
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- CN112826608B CN112826608B CN202110001287.XA CN202110001287A CN112826608B CN 112826608 B CN112826608 B CN 112826608B CN 202110001287 A CN202110001287 A CN 202110001287A CN 112826608 B CN112826608 B CN 112826608B
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- 210000004394 hip joint Anatomy 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 13
- 210000002414 leg Anatomy 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000011282 treatment Methods 0.000 abstract description 6
- 238000011540 hip replacement Methods 0.000 description 16
- 210000000689 upper leg Anatomy 0.000 description 15
- 210000002683 foot Anatomy 0.000 description 8
- 210000003423 ankle Anatomy 0.000 description 5
- 229920001821 foam rubber Polymers 0.000 description 4
- 230000000399 orthopedic effect Effects 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001900 immune effect Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
- A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
- A61G13/1245—Knees, upper or lower legs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
- A61G13/128—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with mechanical surface adaptations
- A61G13/1285—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with mechanical surface adaptations having modular surface parts, e.g. being replaceable or turnable
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Abstract
The invention belongs to the technical field of medical instruments, in particular to a portable traction frame in minimally invasive anterior hip joint replacement and a using method thereof, and provides the following scheme, which comprises a sickbed, two symmetrical brackets are rotationally connected in the sickbed, a rotating component for driving the brackets to rotate is arranged in the sickbed, the two sides of the bracket are connected with the same U-shaped block in a sliding way, the invention has simple structure and convenient operation, the movement of the groove plate, the sliding table and the placing plate can be controlled by rotating the pull rod and the disc, can achieve the traction treatment of patients with different heights, and the third worm can be rotated to drive the placing plate to slide in a moving degree, and then can carry out the tensile of certain degree and pull according to patient's the state of an illness, this traction frame easy operation has reduced medical personnel's work burden in addition, can reach the operation position that the doctor wanted according to doctor's demand.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a portable traction frame for minimally invasive anterior hip joint replacement and a using method thereof.
Background
Medical devices refer to instruments, devices, apparatuses, in-vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly in the human body, including necessary computer software, and the effects are mainly obtained by physical means and the like, not by pharmacological, immunological or metabolic means, or are only assisted by the means. For the purpose of diagnosis, prevention, monitoring, treatment, or amelioration of a disease; diagnosis, monitoring, treatment, mitigation, or functional compensation of injury; examination, replacement, regulation or support of a physiological structure or physiological process; support or maintenance of life; controlling pregnancy; by inspecting a sample from a human body, information is provided for medical or diagnostic purposes, the development of modern medicine, particularly orthopedics and image surgery, is more and more advanced, and many surgical and image technologies cannot be matched with advanced medical equipment, particularly the traction frame cannot be used during surgery or after-surgery rehabilitation treatment.
Traditional orthopedics traction frame is very complicated when the operation, and hardly reaches the operation position that the doctor wanted, and numerous and diverse operation has become medical personnel's work burden, uses inconveniently when postoperative rehabilitation moreover, can't carry out the tensile of certain degree according to patient's demand and pull, and the orthopedics traction frame parameter of the majority is fixed in addition, can't be suitable for different patient's size height.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a portable traction frame which is compact in structure and simple to operate, can be used for stretching and traction to a certain degree according to the disease condition of a patient and is used for minimally invasive anterior hip joint replacement for most patients, and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a portable traction frame in minimally invasive anterior hip joint replacement comprises a sickbed, wherein two symmetrical supports are rotationally connected in the sickbed, a rotating assembly used for driving the supports to rotate is arranged in the sickbed, the two sides of each support are slidably connected with the same U-shaped block, the tops of the two U-shaped blocks are fixedly connected with a groove plate, one side of each groove plate is fixedly connected with a fixed block, the inner walls of the two sides of each fixed block are rotatably connected with the same second rotating shaft, the outer wall of the second rotating shaft is wound with an elastic bandage, one side, far away from the groove plate, of each fixed block is fixedly connected with a magic tape, one side, far away from the fixed block, of each groove plate is rotatably connected with a round rod, one side, far away from the fixed block, of each support is provided with a braking assembly used for braking the U-shaped blocks, the tops of the two supports are both slidably connected with sliding tables, and sliding assemblies used for enabling the sliding tables to slide are arranged in the two supports, the top of the sliding table is connected with a placing plate in a sliding mode, the sliding table is internally provided with a driving assembly used for driving the placing plate to slide, the bottom of the sickbed is fixedly connected with two symmetrical supporting legs, and the bottom of the support is fixedly connected with universal wheels.
The runner assembly is including setting up the first rotation groove in the sick bed, the both sides inner wall in first rotation groove rotates and is connected with same first worm, the both sides inner wall in first rotation groove rotates and is connected with same second worm, the fixed cover of outer wall of second worm is equipped with first worm wheel, first worm wheel and first worm mesh mutually, the one end of first worm extends to one side of sick bed, the top inner wall in first rotation groove rotates with the bottom inner wall and is connected with two symmetrical first pivots, two the equal fixed cover of outer wall of first pivot is equipped with support and second worm wheel, two the bottom of support and the top fixed connection of second worm wheel, second worm and two second worm wheel mesh mutually.
The brake assembly includes that fixed connection keeps away from the rack of one side each other at two supports, be equipped with the rectangular channel in the U type piece, the top inner wall and the bottom inner wall sliding connection of rectangular channel have same push pedal, one side sliding connection of U type piece has the pull rod, the one end of pull rod extend to the rectangular channel and with push pedal fixed connection, one side fixedly connected with latch that the pull rod was kept away from to the push pedal, latch and rack mesh mutually, two symmetrical springs of one side inner wall fixedly connected with of rectangular channel, two one side that the pull rod was kept away from to the spring all with push pedal fixed connection.
The sliding assembly comprises transmission grooves arranged in two supports, two transmission grooves are connected with a same second chain wheel in a rotating mode, two transmission grooves are connected with a first rotating shaft in one side, far away from the supports, of the supports, the first rotating shaft is connected with the first rotating shaft in a rotating mode, one end of the first rotating shaft extends into the transmission grooves and is fixedly connected with a first chain wheel, the first chain wheel and the second chain wheel are connected with a same chain in a driving mode, the bottom of the sliding table is fixedly connected with a connecting block, the bottom of the connecting block extends into the transmission grooves, one side, close to the first chain wheel, of the connecting block is provided with a rectangular sliding groove, the chain is close to one side of a sliding rod, one end, far away from the chain, of the sliding rod extends into the rectangular sliding groove and is connected with the rectangular sliding groove in a sliding mode, and one side of the supports is fixedly connected with a first toothed ring.
The sliding assembly further comprises a disc fixedly connected to one end of the first rotating shaft, the outer wall of the first rotating shaft is slidably connected with a second toothed ring, the second toothed ring is meshed with the first toothed ring, the outer wall of the first rotating shaft is sleeved with a tension spring, one end of the second toothed ring and the disc are fixedly connected through the tension spring, one end of the disc and one end of the second toothed ring are fixedly connected through the tension spring, two symmetrical rectangular rods are fixedly connected to one side of the second toothed ring and are connected with one end of each rectangular rod in a penetrating mode and are connected with the disc in a sliding mode, the rectangular rods are connected with one connecting plate in a penetrating mode, one end of each connecting plate is connected with the disc in a sliding mode, and one side of the disc is provided with a fixing groove.
Drive assembly rotates the groove including setting up sliding tray and the second in the sliding stand, the both sides inner wall of sliding tray rotates and is connected with same lead screw, the one end of lead screw extends to the second and rotates inslot and fixedly connected with second dwang, the fixed cover of outer wall of second dwang is equipped with the third worm wheel, the both sides inner wall that the second rotated the groove rotates and is connected with same third worm, third worm and third worm wheel mesh mutually, the one end of third worm extends to one side of sliding tray, the outer wall threaded connection of lead screw has screw nut, screw nut's top and place board fixed connection.
The top fixedly connected with foam-rubber cushion of recess board can reduce the wearing and tearing of recess board to patient's thigh through the foam-rubber cushion, increases patient's comfort level.
And a rotating bearing is embedded on one side of the sliding table in a driving mode, one end of the third worm penetrates through an inner ring of the rotating bearing and is fixedly connected with the inner ring of the rotating bearing, and the friction resistance of the sliding table to the third worm can be reduced through the rotating bearing.
The top of U type piece is rotated and is connected with the second axis of rotation, the fixed cover of outer wall of second axis of rotation is equipped with first gear, the top four corners position of U type piece all rotates and is connected with the screw rod, four the outer wall of screw rod is all fixed the cover and is equipped with the second gear, four the second gear all meshes with first gear mutually, four nuts of equidistance arrangement in the recess inboard, four the top of screw rod all extends to the recess inboard and all meshes with nut threaded connection, the top fixedly connected with micro-motor of U type piece, micro-motor's output shaft fixedly connected with third gear, third gear and first gear mesh mutually.
The use method of the portable traction frame in minimally invasive anterior hip replacement comprises the following steps:
s1, a patient lies on a sickbed, the pull rod is pulled outwards to drive the push plate and the latch to slide outwards, the spring starts to compress, the latch and the rack are disengaged, then the U-shaped block slides, the U-shaped block is moved to the position below the thigh of the patient according to the height of the patient, then the pulling force on the pull rod is released, the push plate and the latch slide inwards under the action of the spring, the latch and the rack are re-engaged, one end of the elastic bandage is pulled, the elastic bandage is wound on the outer wall of the round rod and then is adhered to the magic tape, and the thigh of the patient is fixed;
s2, the first rotating rod is pushed to enable one end of the first rotating rod to slide into the fixed groove, the rectangular rod, the second toothed ring and the connecting plate move outwards along with the sliding of the first rotating rod, the tension spring begins to stretch, the second toothed ring and the first toothed ring are disengaged, then the rotating disc drives the first rotating shaft, the second toothed ring, the rectangular rod and the first chain wheel to rotate, the second chain wheel is driven to rotate through the chain to move, so that the connecting block and the sliding table can be moved, the sliding table is moved to the position under the feet of a patient, then one end of the first rotating rod is slid to enable one end of the first rotating rod to slide out of the fixed groove, the connecting plate, the rectangular rod and the second toothed ring slide inwards under the action of the tension spring, the second toothed ring is engaged with the first toothed ring again to brake the first rotating shaft again, the feet of the patient are respectively placed on the placing plate, the position under the ankle of the patient is fixed on the placing plate through the medical bandage, can be adjusted according to the heights of different patients;
s3, rotating the first worm, wherein the first worm is meshed with the first worm wheel, the first worm can drive the second worm to rotate with the first worm wheel, the second worm is meshed with the second worm wheel, and the first rotating shaft, the bracket and the second worm wheel are driven to rotate along with the rotation of the second worm, so that the legs of the patient can be separated or folded as required;
s4, rotating a third worm, wherein the third worm is meshed with a third worm wheel, the third worm drives the third worm wheel, a lead screw and a second rotating rod to rotate, the lead screw is in threaded connection with a lead screw nut, and the lead screw nut and a placing plate can move to a certain extent along with the rotation of the lead screw so as to stretch and draw a patient to a certain extent;
s5, the small motor is started to drive the third gear to rotate, the first gear is meshed with the third gear and the second gear respectively, the third gear drives the second gear and the screw to rotate, the nut is in threaded connection with the screw, the nut can drive the groove plate to move up and down along with the rotation of the screw, and thighs of a patient are driven to move up and down to achieve the purpose of treating the patient.
The invention has the following advantages:
1. patient lies on the sick bed, outside pulling pull rod, drive push pedal and latch and slide to the outside, the spring begins the compression, latch and rack break away from the engaged state, then slip U type piece, remove the below of patient's thigh with U type piece according to patient's height, loosen the pulling force to the pull rod after that, push pedal and latch slide inwards under the effect of spring, latch and rack are reengaged, drag elastic bandage's one end, paste elastic bandage and magic after making the outer wall of elastic bandage winding pole again and paste, fixed patient's thigh.
2. The first rotating rod is pushed to enable one end of the first rotating rod to slide into the fixed groove, the rectangular rod, the second toothed ring and the connecting plate move towards the outside along with the sliding of the first rotating rod, the tension spring starts to stretch, the second toothed ring and the first toothed ring are separated from a meshing state, then the rotating disc drives the first rotating shaft, the second toothed ring, the rectangular rod and the first chain wheel to rotate, the second chain wheel is driven by a chain to rotate, the chain moves when coming, so that the connecting block and the sliding table can be moved, the sliding table is moved to the position under the feet of a patient, one end of the first rotating rod is slid, one end of the first rotating rod slides out of the fixed groove, the connecting plate, the rectangular rod and the second toothed ring slide inwards under the action of the tension force of the tension spring, the second toothed ring is meshed with the first toothed ring again, the first rotating shaft is braked again, the feet of the patient are placed on the placing plate respectively, the ankle of the patient is fixed on the placing plate through a medical bandage below the ankle, can be adjusted according to the height of different patients.
3. The first worm is rotated, the first worm is meshed with the first worm wheel, the first worm can drive the second worm to rotate with the first worm wheel, the second worm is meshed with the second worm wheel, the first rotating shaft, the support and the second worm wheel are driven to rotate along with the rotation of the second worm, and then the legs of a patient can be separated or folded as required.
4. The third worm is rotated, the third worm is meshed with the third worm wheel, the third worm drives the third worm wheel, the lead screw and the second rotating rod to rotate, the lead screw is in threaded connection with the lead screw nut, the lead screw nut and the placing plate can move to a certain extent along with the rotation of the lead screw, and then certain stretching traction is carried out on a patient.
5. The small motor is started to drive the third gear to rotate, the first gear is meshed with the third gear and the second gear respectively, the third gear drives the second gear to rotate with the screw rod, the nut is in threaded connection with the screw rod, the nut can drive the groove plate to move up and down along with the rotation of the screw rod, the thigh of a patient is driven to move up and down, and the purpose of treating the patient is achieved.
6. Be equipped with the foam-rubber cushion on the recess board, can reduce the recess board through the foam-rubber cushion and to the wearing and tearing of patient's thigh, increase patient's comfort level.
The traction frame is simple in structure and convenient to operate, the movement of the groove plate, the sliding table and the placing plate can be controlled by rotating the pull rod and the disc, patients with different heights can be subjected to traction treatment, the third worm can be rotated to drive the placing plate to slide to a moving degree, and further the stretching traction to a certain degree can be performed according to the illness state of the patients, in addition, the traction frame is simple to operate, the workload of medical staff is reduced, and the operation body position required by a doctor can be achieved according to the requirement of the doctor.
Drawings
FIG. 1 is a top cross-sectional view of a portable traction frame for minimally invasive anterior hip replacement as proposed by the present invention;
FIG. 2 is a front view of a portable traction frame for minimally invasive anterior hip replacement according to the present invention;
FIG. 3 is a front cross-sectional view of a hospital bed with a portable traction frame for minimally invasive anterior hip replacement according to the present invention;
FIG. 4 is a side cross-sectional view of a U-shaped block of the portable traction frame for minimally invasive anterior hip replacement according to the present invention;
FIG. 5 is an enlarged view of the portable traction frame at position A in the minimally invasive anterior hip replacement proposed by the present invention;
FIG. 6 is a meshing view of a rack and a latch of the portable traction frame in minimally invasive anterior hip replacement according to the present invention;
FIG. 7 is a top view of the frame of the portable traction frame in minimally invasive anterior hip replacement according to the present invention;
FIG. 8 is a front cross-sectional view of a frame of a portable traction frame for minimally invasive anterior hip replacement according to the present invention;
FIG. 9 is an enlarged view of the portable traction frame at position B in the minimally invasive anterior hip replacement proposed by the present invention;
FIG. 10 is a side cross-sectional view of the carriage and the sliding table of the portable traction frame in minimally invasive anterior hip replacement proposed by the present invention;
FIG. 11 is an enlarged view of the portable traction frame at position C in the minimally invasive anterior hip replacement proposed by the present invention;
FIG. 12 is a front view of a second ring gear of the portable traction frame in minimally invasive anterior hip replacement according to the present invention;
FIG. 13 is a top cross-sectional view of the sliding table of the portable traction frame in minimally invasive anterior hip replacement as proposed by the present invention;
FIG. 14 is a side cross-sectional view of the U-shaped block and the notch plate of the second embodiment;
FIG. 15 is a top view of a U-shaped block according to the second embodiment.
In the figure: 1. a hospital bed; 2. a first rotation groove; 3. a first worm; 4. a second worm; 5. a first worm gear; 6. a first rotating shaft; 7. a support; 8. a second worm gear; 9. a U-shaped block; 10. a rack; 11. a rectangular groove; 12. pushing the plate; 13. a spring; 14. clamping teeth; 15. a pull rod; 16. a groove plate; 17. a fixed block; 18. a second rotating shaft; 19. an elastic band; 20. a sponge cushion; 21. a round bar; 22. magic tape; 23. a transmission groove; 24. a first rotating shaft; 25. a first sprocket; 26. a second sprocket; 27. a chain; 28. a slide bar; 29. connecting blocks; 30. a rectangular chute; 31. a sliding table; 32. a first ring gear; 33. a second ring gear; 34. a tension spring; 35. a rectangular bar; 36. a disc; 37. a connecting plate; 38. a first rotating lever; 39. fixing grooves; 40. a sliding groove; 41. a lead screw; 42. a lead screw nut; 43. a second rotating groove; 44. a second rotating lever; 45. a third worm gear; 46. a third worm; 47. placing the plate; 48. a universal wheel; 49. supporting legs; 50. a second rotating shaft; 51. a first gear; 52. a screw; 53. a nut; 54. a second gear; 55. a third gear; 56. a small-sized motor; 57. and rotating the bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-13, a portable traction frame for minimally invasive anterior hip joint replacement comprises a hospital bed 1, two symmetrical brackets 7 are rotatably connected in the hospital bed 1, a rotating assembly for driving the brackets 7 to rotate is arranged in the hospital bed 1, the two sides of each bracket 7 are slidably connected with the same U-shaped block 9, the tops of the two U-shaped blocks 9 are fixedly connected with a groove plate 16, one side of the groove plate 16 is fixedly connected with a fixed block 17, the inner walls of the two sides of the fixed block 17 are rotatably connected with the same second rotating shaft 18, the outer wall of the second rotating shaft 18 is wound with an elastic bandage 19, one side of the fixed block 17 far away from the groove plate 16 is fixedly connected with a magic tape 22, one side of the groove plate 16 far away from the fixed block 17 is rotatably connected with a round rod 21, one side of the two brackets 7 far away from each other is provided with a braking assembly for braking the U-shaped blocks 9, the tops of the two brackets 7 are slidably connected with a sliding table 31, all be equipped with in two supports 7 and be used for making the sliding stand 31 carry out gliding sliding assembly, the equal sliding connection in top of two sliding stands 31 places board 47, all is equipped with in two sliding stands 31 and is used for the drive to place the gliding drive assembly of board 47, and the bottom fixedly connected with of sick bed 1 has two symmetrical supporting legss 49, and the equal fixedly connected with universal wheel 48 in bottom of two supports 7.
According to the hospital bed, the rotating assembly comprises a first rotating groove 2 arranged in a hospital bed 1, the inner walls of two sides of the first rotating groove 2 are rotatably connected with a same first worm 3, the inner walls of two sides of the first rotating groove 2 are rotatably connected with a same second worm 4, the outer wall of the second worm 4 is fixedly sleeved with a first worm wheel 5, the first worm wheel 5 is meshed with the first worm 3, one end of the first worm 3 extends to one side of the hospital bed 1, the inner wall of the top of the first rotating groove 2 and the inner wall of the bottom of the first rotating groove are rotatably connected with two symmetrical first rotating shafts 6, the outer walls of the two first rotating shafts 6 are fixedly sleeved with a support 7 and a second worm wheel 8, the bottoms of the two supports 7 are fixedly connected with the top of the second worm wheel 8, and the second worm 4 is meshed with the two second worm wheels 8.
According to the invention, the brake assembly comprises racks 10 fixedly connected to the sides, away from each other, of the two supports 7, a rectangular groove 11 is formed in the U-shaped block 9, the inner wall of the top and the inner wall of the bottom of the rectangular groove 11 are connected with the same push plate 12 in a sliding mode, one side of the U-shaped block 9 is connected with a pull rod 15 in a sliding mode, one end of the pull rod 15 extends into the rectangular groove 11 and is fixedly connected with the push plate 12, one side, away from the pull rod 15, of the push plate 12 is fixedly connected with a latch 14, the latch 14 is meshed with the racks 10, the inner wall of one side of the rectangular groove 11 is fixedly connected with two symmetrical springs 13, and one sides, away from the pull rod 15, of the two springs 13 are fixedly connected with the push plate 12.
In the invention, the sliding assembly comprises transmission grooves 23 arranged in two supports 7, the inner walls of two sides of the two transmission grooves 23 are rotatably connected with the same second chain wheel 26, the sides, away from each other, of the two supports 7 are rotatably connected with first rotating shafts 24, one end of each first rotating shaft 24 extends into the corresponding transmission groove 23 and is fixedly connected with a first chain wheel 25, the outer sides of the first chain wheel 25 and the second chain wheel 26 are rotatably connected with the same chain 27, the bottom of a sliding table 31 is fixedly connected with a connecting block 29, the bottom end of the connecting block 29 extends into the corresponding transmission groove 23, one side, close to the first chain wheel 25, of the connecting block 29 is provided with a rectangular sliding groove 30, one side, close to the connecting block 29, of the chain 27 is fixedly connected with a sliding rod 28, one end, away from the chain 27, of the sliding rod 28 extends into the rectangular sliding groove 30 and is slidably connected with the rectangular sliding groove 30, and one side of each support 7 is fixedly connected with a first toothed ring 32.
In the invention, the sliding assembly further comprises a disc 36 fixedly connected to one end of the first rotating shaft 24, a second toothed ring 33 is slidably connected to the outer wall of the first rotating shaft 24, the second toothed ring 33 is meshed with the first toothed ring 32, a tension spring 34 is sleeved on the outer wall of the first rotating shaft 24, one end, far away from the second toothed ring 33, of the tension spring 34 is fixedly connected with the disc 36, one end, far away from the disc 36, of the tension spring 34 is fixedly connected with the second toothed ring 33, two symmetrical rectangular rods 35 are fixedly connected to one side of the second toothed ring 33, one ends of the two rectangular rods 35 penetrate through the disc 36 and are slidably connected with the disc 36, one ends, far away from the second toothed ring 33, of the two rectangular rods 35 are fixedly connected with the same connecting plate 37, one side, close to the disc 36, of the connecting plate 37 is rotatably connected with a first rotating rod 38, one end of the first rotating rod 38 is slidably connected with the disc 36, and one side of the disc 36 is provided with a fixing groove 39.
In the invention, the driving assembly comprises a sliding groove 40 and a second rotating groove 43 which are arranged in the sliding table 31, the inner walls of the two sides of the sliding groove 40 are rotatably connected with the same lead screw 41, one end of the lead screw 41 extends into the second rotating groove 43 and is fixedly connected with a second rotating rod 44, the outer wall of the second rotating rod 44 is fixedly sleeved with a third worm wheel 45, the inner walls of the two sides of the second rotating groove 43 are rotatably connected with the same third worm 46, the third worm 46 is meshed with the third worm wheel 45, one end of the third worm 46 extends to one side of the sliding table 31, the outer wall of the lead screw 41 is in threaded connection with a lead screw nut 42, and the top end of the lead screw nut 42 is fixedly connected with a placing plate 47.
In the invention, the top of the groove plate 16 is fixedly connected with the spongy cushion 20, so that the abrasion of the groove plate 16 on the thigh of a patient can be reduced through the spongy cushion 20, and the comfort level of the patient is increased.
In the present invention, a rotary bearing 57 is driven and embedded at one side of the sliding table 31, one end of the third worm 46 penetrates through an inner ring of the rotary bearing 57 and is fixedly connected with the inner ring of the rotary bearing 57, and the frictional resistance of the sliding table 31 to the third worm 46 can be reduced through the rotary bearing 57.
The use method of the portable traction frame in minimally invasive anterior hip replacement comprises the following steps:
s1, a patient lies on the sickbed 1, the pull rod 15 is pulled outwards to drive the push plate 12 and the latch 14 to slide outwards, the spring 13 starts to compress, the latch 14 and the rack 10 are disengaged, then the U-shaped block 9 slides, the U-shaped block 9 is moved to the position below the thigh of the patient according to the height of the patient, then the pull force on the pull rod 15 is released, the push plate 12 and the latch 14 slide inwards under the action of the spring 13, the latch 14 and the rack 10 are re-engaged, one end of the elastic band 19 is pulled, the elastic band 19 is adhered to the magic tape 22 after the elastic band 19 is wound on the outer wall of the round rod 21, and the thigh of the patient is fixed;
s2, pushing the first rotating rod 38 to slide one end of the first rotating rod 38 into the fixed slot 39, with the sliding of the first rotating rod 38, the rectangular rod 35, the second toothed ring 33 and the connecting plate 37 move outwards, the tension spring 34 starts to stretch, the second toothed ring 33 and the first toothed ring 32 are disengaged, then the rotating disc 36 drives the first rotating shaft 24, the second toothed ring 33, the rectangular rod 35 and the first chain wheel 25 to rotate, and further drives the second chain wheel 26 to rotate through the chain 27, the chain 27 moves, so that the connecting block 29 and the sliding table 31 can be moved, the sliding table 31 is moved to the position under the feet of the patient, then one end of the first rotating rod 38 is slid out of the fixed slot 39, the connecting plate 37, the rectangular rod 35 and the second toothed ring 33 slide inwards under the tension of the tension spring 34, the second toothed ring 33 is engaged with the first toothed ring 32 again, the first rotating shaft 24 is braked again, the feet of the patient are respectively placed on the placing plate 47, the lower part of the ankle of the patient is fixed on the placing plate 47 through a medical bandage, and the medical bandage can be adjusted according to the height of different patients;
s3, rotating the first worm 3, wherein the first worm 3 is meshed with the first worm wheel 5, the first worm 3 can drive the second worm 4 and the first worm wheel 5 to rotate, the second worm 4 is meshed with the second worm wheel 8, and the first rotating shaft 6, the bracket 7 and the second worm wheel 8 are driven to rotate along with the rotation of the second worm 4, so that the legs of a patient can be separated or folded as required;
s4, rotating the third worm 46, wherein the third worm 46 is meshed with the third worm wheel 45, the third worm 46 drives the third worm wheel 45, the lead screw 41 and the second rotating rod 44 to rotate, the lead screw 41 is in threaded connection with the lead screw nut 42, and the lead screw nut 42 and the placing plate 47 can move to a certain extent along with the rotation of the lead screw 41, so that the patient can be stretched and drawn to a certain extent;
s5, starting the small motor 56 to drive the third gear 55 to rotate, the first gear 51 is respectively meshed with the third gear 55 and the second gear 54, the third gear 55 drives the second gear 54 and the screw 52 to rotate, the nut 53 is in threaded connection with the screw 52, the nut 53 can drive the groove plate 16 to move up and down along with the rotation of the screw 52, and the thigh of the patient is driven to move up and down, so that the purpose of treating the patient is achieved.
Example two: as shown in fig. 14-15, the present embodiment differs from the first embodiment in the portable traction frame for minimally invasive anterior hip replacement: the top of U type piece 9 is rotated and is connected with second axis of rotation 50, the fixed cover of the outer wall of second axis of rotation 50 is equipped with first gear 51, the top four corners position of U type piece 9 all rotates and is connected with screw rod 52, the fixed cover of the outer wall of four screw rods 52 is equipped with second gear 54, four second gears 54 all mesh with first gear 51 mutually, four nuts 53 of equidistance arrangement in the recess board 16, the top of four screw rods 52 all extends to in the recess board 16 and all with nut 53 threaded connection, the top fixedly connected with small motor 56 of U type piece 9, small motor 56's output shaft fixedly connected with third gear 55, third gear 55 meshes with first gear 51 mutually.
However, as is well known to those skilled in the art, the working principle and wiring method of the small-sized motor 56 are common general knowledge and are not described herein, and those skilled in the art can make any selection according to their needs or convenience
The working principle is as follows: firstly, a patient lies on the sickbed 1, pulls the pull rod 15 outwards to drive the push plate 12 and the latch 14 to slide outwards, the spring 13 starts to compress, the latch 14 and the rack 10 are disengaged, then the U-shaped block 9 slides, the U-shaped block 9 is moved to the lower part of the thigh of the patient according to the height of the patient, then the pulling force to the pull rod 15 is released, the push plate 12 and the latch 14 slide inwards under the action of the spring 13, the latch 14 and the rack 10 are reengaged, one end of the elastic bandage 19 is pulled, the elastic bandage 19 is pasted to the magic paste 22 after being wound on the outer wall of the round rod 21, the thigh of the patient is fixed, secondly, the first rotating rod 38 is pushed, one end of the first rotating rod 38 slides into the fixing groove 39, the rectangular rod 35, the second toothed ring 33 and the connecting plate 37 move outwards along with the sliding of the first rotating rod 38, the tension spring 34 starts to stretch, the second toothed ring 33 and the first toothed ring 32 are disengaged, then the rotating disc 36 rotates the first rotating shaft 24, the second gear ring 33, the rectangular bar 35 and the first chain wheel 25, and further the chain 27 rotates the second chain wheel 26, the chain 27 is moved, so that the connecting block 29 and the sliding table 31 can be moved, the sliding table 31 is moved to the position under the feet of the patient, then one end of the first rotating shaft 38 is slid out of the fixing groove 39, the connecting plate 37, the rectangular bar 35 and the second gear ring 33 are slid inward by the tension of the tension spring 34, the second gear ring 33 is engaged with the first gear ring 32 again, the first rotating shaft 24 is braked again, the feet of the patient are placed on the placing plate 47, respectively, the position under the ankle of the patient is fixed on the placing plate 47 by the medical bandage, the adjustment can be performed according to the body heights of different patients, the third step, the first worm 3 is rotated, the first worm 3 is engaged with the first worm wheel 5, the first worm 3 can drive the second worm 4 and the first worm wheel 5 to rotate, the second worm 4 and the second worm wheel 8 are meshed, the first rotating shaft 6, the bracket 7 and the second worm wheel 8 are driven to rotate along with the rotation of the second worm 4, and then the two legs of a patient can be separated or folded according to needs, in the fourth step, the third worm 46 is rotated, the third worm 46 and the third worm wheel 45 are meshed, the third worm 46 drives the third worm wheel 45, the lead screw 41 and the second rotating rod 44 to rotate, the lead screw 41 and the lead screw nut 42 are in threaded connection, the lead screw nut 42 and the placing plate 47 can carry out certain movement along with the rotation of the lead screw 41, and then certain stretching traction is carried out on the patient, in the fifth step, the small motor 56 is started to drive the third worm wheel 55 to rotate, the first gear 51 is respectively meshed with the third gear 55 and the second gear 54, the third gear 55 drives the second gear 54 and the screw 52 to rotate, and nut 53 and screw rod 52 threaded connection, along with the rotation of screw rod 52 nut 53 can drive recess board 16 and reciprocate, drives patient's thigh and reciprocates, reaches patient's treatment's purpose.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (3)
1. The portable traction frame for minimally invasive anterior hip joint replacement comprises a sickbed (1) and is characterized in that two symmetrical supports (7) are rotationally connected in the sickbed (1), a rotating assembly used for driving the supports (7) to rotate is arranged in the sickbed (1), the rotating assembly comprises a first rotating groove (2) arranged in the sickbed (1), the inner walls of two sides of the first rotating groove (2) are rotationally connected with a same first worm (3), the inner walls of two sides of the first rotating groove (2) are rotationally connected with a same second worm (4), a first worm wheel (5) is fixedly sleeved on the outer wall of the second worm (4), the first worm wheel (5) is meshed with the first worm (3), one end of the first worm (3) extends to one side of the sickbed (1), the inner wall of the top and the inner wall of the bottom of the first rotating groove (2) are rotationally connected with two symmetrical first rotating shafts (6), the outer wall of the two first rotating shafts (6) is fixedly sleeved with a support (7) and a second worm wheel (8), the bottom of the support (7) is fixedly connected with the top of the second worm wheel (8), the second worm (4) is meshed with the two second worm wheels (8), two sides of the support (7) are connected with the same U-shaped block (9) in a sliding mode, two top portions of the U-shaped block (9) are fixedly connected with a groove plate (16), the top portion of the groove plate (16) is fixedly connected with a sponge pad (20), one side of the groove plate (16) is fixedly connected with a fixing block (17), two inner walls of two sides of the fixing block (17) are rotatably connected with the same second rotating shaft (18), the outer wall of the second rotating shaft (18) is wound with an elastic bandage (19), and one side of the fixing block (17) far away from the groove plate (16) is fixedly connected with a magic tape (22), one side of the groove plate (16) far away from the fixing block (17) is rotatably connected with a round rod (21), one side of each two supports (7) far away from each other is provided with a brake assembly used for braking the U-shaped block (9), the brake assembly comprises a rack (10) fixedly connected to one side of each support (7) far away from each other, a rectangular groove (11) is arranged in the U-shaped block (9), the inner wall of the top and the inner wall of the bottom of the rectangular groove (11) are slidably connected with a same push plate (12), one side of the U-shaped block (9) is slidably connected with a pull rod (15), one end of the pull rod (15) extends into the rectangular groove (11) and is fixedly connected with the push plate (12), one side of the push plate (12) far away from the pull rod (15) is fixedly connected with a latch (14), the latch (14) is meshed with the rack (10), and the inner wall of one side of the rectangular groove (11) is fixedly connected with two symmetrical springs (13), two one side of the spring (13) far away from the pull rod (15) is fixedly connected with the push plate (12), two sliding assemblies are arranged in the supports (7) and used for enabling the sliding assemblies (31) to slide, each sliding assembly comprises transmission grooves (23) formed in the two supports (7), two inner walls of two sides of each transmission groove (23) are rotatably connected with a same second chain wheel (26), one sides of the two supports (7) far away from each other are rotatably connected with first rotating shafts (24), one ends of the first rotating shafts (24) extend into the transmission grooves (23) and are fixedly connected with first chain wheels (25), the outer sides of the first chain wheels (25) and the second chain wheels (26) are rotatably connected with a same chain (27), and the bottom of each sliding table (31) is fixedly connected with a connecting block (29), the bottom of connecting block (29) extends to in drive groove (23), one side that connecting block (29) is close to first sprocket (25) is equipped with rectangle spout (30), one side fixedly connected with slide bar (28) that chain (27) are close to connecting block (29), the one end that chain (27) were kept away from in slide bar (28) extends to rectangle spout (30) in and with rectangle spout (30) sliding connection, one side fixedly connected with first ring gear (32) of support (7), the slip subassembly still includes disc (36) of fixed connection in first rotation axis (24) one end, the outer wall sliding connection of first rotation axis (24) has second ring gear (33), second ring gear (33) and first ring gear (32) mesh mutually, the outer wall cover of first rotation axis (24) is equipped with extension spring (34), the one end and disc (36) fixed connection of second ring gear (33) are kept away from in extension spring (34), one end of a disc (36) and one end of a second toothed ring (33) are fixedly connected with each other through a tension spring (34), two symmetrical rectangular rods (35) are fixedly connected to one side of the second toothed ring (33), one ends of the two rectangular rods (35) penetrate through the disc (36) and are in sliding connection with the disc (36), one ends of the two rectangular rods (35) far away from the second toothed ring (33) are fixedly connected with the same connecting plate (37), one side, close to the disc (36), of the connecting plate (37) is rotatably connected with a first rotating rod (38), one end of the first rotating rod (38) is in sliding connection with the disc (36), a fixing groove (39) is formed in one side of the disc (36), a placing plate (47) is connected to the top of the two sliding tables (31) in a sliding mode, a driving assembly used for driving the placing plate (47) to slide is arranged in each sliding table (31), the bottom fixedly connected with two symmetrical supporting legs (49) of sick bed (1), two the equal fixedly connected with universal wheel (48) in bottom of support (7), the top of U type piece (9) is rotated and is connected with second axis of rotation (50), the outer wall fixed cover of second axis of rotation (50) is equipped with first gear (51), the top four corners position of U type piece (9) is all rotated and is connected with screw rod (52), four the outer wall of screw rod (52) is all fixedly sleeved with second gear (54), four second gear (54) all meshes with first gear (51), four nuts (53) have been arranged to the equidistance in recess board (16), four the top of screw rod (52) all extends to in recess board (16) and all with nut (53) threaded connection, the top fixedly connected with small motor (56) of U type piece (9), and the output shaft of the small motor (56) is fixedly connected with a third gear (55), and the third gear (55) is meshed with the first gear (51).
2. The portable traction frame for minimally invasive anterior hip joint replacement according to claim 1, wherein the driving assembly comprises a sliding groove (40) and a second rotating groove (43) which are arranged in the sliding table (31), the inner walls of both sides of the sliding groove (40) are rotatably connected with the same lead screw (41), one end of the lead screw (41) extends into the second rotating groove (43) and is fixedly connected with a second rotating rod (44), the outer wall of the second rotating rod (44) is fixedly sleeved with a third worm gear (45), the inner walls of both sides of the second rotating groove (43) are rotatably connected with the same third worm (46), the third worm (46) and the third worm gear (45) are engaged, one end of the third worm (46) extends to one side of the sliding table (31), the outer wall of the lead screw (41) is connected with a lead screw nut (42) in a threaded manner, the top end of the screw nut (42) is fixedly connected with a placing plate (47).
3. The portable traction frame for minimally invasive anterior hip joint replacement according to claim 2, wherein a rotary bearing (57) is embedded in one side of the sliding table (31) in a driving manner, and one end of the third worm (46) penetrates through an inner ring of the rotary bearing (57) and is fixedly connected with the inner ring of the rotary bearing (57).
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| CN202110001287.XA CN112826608B (en) | 2021-01-04 | 2021-01-04 | Portable traction frame in minimally invasive anterior hip joint replacement and using method thereof |
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| CN114376844B (en) * | 2022-01-18 | 2022-10-04 | 嘉兴市第二医院 | Lithotomy position operating table |
| CN116807783B (en) * | 2023-06-28 | 2024-05-28 | 长沙市第三医院 | Multifunctional nursing bed for medical care |
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| CN108403341A (en) * | 2018-03-02 | 2018-08-17 | 王晓箴 | It is a kind of orthopaedics hospital bed with traction reduction function |
| CN209437446U (en) * | 2018-05-24 | 2019-09-27 | 刘晓琪 | A kind of orthopedic rehabilitation automatic traction frame |
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| US7832401B2 (en) * | 2005-11-30 | 2010-11-16 | Smith & Nephew, Inc. | Hip distraction |
| CN106109071A (en) * | 2016-06-21 | 2016-11-16 | 中国人民解放军总医院 | A kind of extension table |
| CN108524073A (en) * | 2018-06-15 | 2018-09-14 | 合肥德捷节能环保科技有限公司 | A kind of novel orthopaedics tractor |
| CN209490142U (en) * | 2018-08-10 | 2019-10-15 | 王保峰 | A kind of skeletal traction frame |
| CN211131594U (en) * | 2019-11-07 | 2020-07-31 | 山东辰宏医疗科技有限公司 | Improved traction frame for orthopedics department |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108403341A (en) * | 2018-03-02 | 2018-08-17 | 王晓箴 | It is a kind of orthopaedics hospital bed with traction reduction function |
| CN209437446U (en) * | 2018-05-24 | 2019-09-27 | 刘晓琪 | A kind of orthopedic rehabilitation automatic traction frame |
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