CN111184617B - Patella loosening device - Google Patents
Patella loosening device Download PDFInfo
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- CN111184617B CN111184617B CN202010168648.5A CN202010168648A CN111184617B CN 111184617 B CN111184617 B CN 111184617B CN 202010168648 A CN202010168648 A CN 202010168648A CN 111184617 B CN111184617 B CN 111184617B
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- turntable
- lifting
- patella
- screw rod
- stepping
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- 210000004417 patella Anatomy 0.000 title claims abstract description 64
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 230000000670 limiting effect Effects 0.000 claims abstract description 22
- 210000000629 knee joint Anatomy 0.000 claims description 18
- 239000000741 silica gel Substances 0.000 claims description 14
- 229910002027 silica gel Inorganic materials 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 210000000988 bone and bone Anatomy 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 3
- 208000012260 Accidental injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 206010058031 Joint adhesion Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/006—Apparatus for applying pressure or blows for compressive stressing of a part of the skeletal structure, e.g. for preventing or alleviating osteoporosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H15/00—Massage by means of rollers, balls, e.g. inflatable, chains, or roller chains
- A61H15/0078—Massage by means of rollers, balls, e.g. inflatable, chains, or roller chains power-driven
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H15/00—Massage by means of rollers, balls, e.g. inflatable, chains, or roller chains
- A61H2015/0007—Massage by means of rollers, balls, e.g. inflatable, chains, or roller chains with balls or rollers rotating about their own axis
- A61H2015/0014—Massage by means of rollers, balls, e.g. inflatable, chains, or roller chains with balls or rollers rotating about their own axis cylinder-like, i.e. rollers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/12—Driving means
- A61H2201/1207—Driving means with electric or magnetic drive
- A61H2201/123—Linear drive
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/10—Leg
- A61H2205/102—Knee
- A61H2205/104—Patella
Landscapes
- Health & Medical Sciences (AREA)
- Rehabilitation Therapy (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rheumatology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention discloses a patella loosening device, which belongs to the technical field of rehabilitation tools and comprises a base, a lifting mechanism, a linear reciprocating driving mechanism, a clamping mechanism and a control box; the lifting mechanism is used for adjusting the heights of the linear reciprocating driving mechanism and the clamping mechanism, the linear reciprocating driving mechanism is used for driving the clamping mechanism to perform linear reciprocating motion, the clamping mechanism is used for clamping and fixing the patella of a patient, so that bone pushing training is performed under the action of the linear reciprocating driving mechanism, and the control box is used for controlling the linear reciprocating driving mechanism to work; the lifting mechanism comprises a lifting plate, a lifting screw rod and a limiting rod, the linear reciprocating driving mechanism comprises a turntable, a driving block and a stepping screw rod motor, the clamping mechanism comprises a connecting seat, two clamping plates and an adjusting screw rod, and the control box comprises a box body, a controller arranged in the box body, a stepping motor driver and a power supply device; the invention solves the problems of laborious operation and poor effect of the prior art that the patient adopts a manual patella pushing mode.
Description
Technical Field
The invention relates to the technical field of rehabilitation tools, in particular to a patella loosening device.
Background
After knee joint operation, the patient is easy to have the situation that the patella activity is obviously reduced due to the adhesion of the knee joint; patella loosening surgery is an effective treatment method for improving patella mobility and knee joint adhesion; therefore, after knee joint surgery, patients often need to take patellar loosening for rehabilitation training; however, in the prior art, a special patella loosening device is not provided, so that a patient can only manually push the patella, the patient is more laborious and the effect is poor; some patients cannot operate the device, and soft tissues are easy to be injured; therefore, there is a need for a patella loosening device that addresses the above issues.
Disclosure of Invention
In view of the above, it is necessary to provide a patella loosening device for solving the problems of laborious and poor effect of manually pushing the patella by a patient in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a patella loosening device comprises a base, a lifting mechanism, a linear reciprocating driving mechanism, a clamping mechanism and a control box; the base is of a flat plate structure;
The lifting mechanism comprises a lifting plate, a lifting screw rod and a limiting rod; the lifting plate is arranged right above the base and is arranged in parallel with the base; the lifting screw rod and the limiting rod are arranged on the top surface of the base at intervals and are perpendicular to the top surface of the base; the bottom of the lifting screw rod is rotationally connected with the base, and the bottom of the limiting rod is fixedly connected with the base; the lifting screw rod is in threaded connection with the lifting plate, the limiting rod is in sliding connection with the lifting plate, and a manual knob is arranged at the top of the lifting screw rod;
The linear reciprocating driving mechanism comprises a turntable, a driving block and a stepping screw motor; the turntable penetrates through the top surface and the bottom surface of the lifting plate and is in rotary connection with the lifting plate; the driving block is in sliding connection with the bottom surface of the turntable, and the sliding direction is a diameter direction of the bottom surface of the turntable; the stepping screw rod motor is fixedly arranged on the bottom surface of the turntable, and a screw rod of the stepping screw rod motor is in threaded connection with the driving block and is used for driving the driving block to reciprocate;
the clamping mechanism comprises a connecting seat, two clamping plates and an adjusting screw; the connecting seat is arranged in parallel with the base, the top of the connecting seat is fixedly connected with the bottom of the driving block, the two clamping plates are arranged on the bottom surface of the connecting seat at intervals and are connected with the connecting seat in a sliding manner, and the sliding direction of the two clamping plates is arranged in parallel with the sliding direction of the driving block; the adjusting screw vertically penetrates through the upper ends of the two clamping plates and is respectively in threaded connection with the two clamping plates through two groups of external threads with opposite directions;
The control box comprises a box body, a controller, a stepping motor driver and a power supply device, wherein the controller, the stepping motor driver and the power supply device are arranged in the box body; the box body is fixedly arranged on the top surface of the turntable, a switch is arranged on the outer side of the box body, the switch, the stepping motor driver and the power supply device are electrically connected with the controller, and the power supply device and the stepping screw motor are electrically connected with the stepping motor driver; the controller controls the stepping screw motor to rotate forwards and reversely through the stepping motor driver, and drives the driving block to reciprocate on the bottom surface of the turntable at a set speed and stroke.
Preferably, the patella loosening device further comprises a massaging device; the massage device comprises a matching block, two assembling plates and a roller; the matching block is in a cuboid shape, and the width of the matching block is smaller than the maximum distance between the two clamping plates; the two assembly plates are respectively arranged on two opposite sides of the bottom surface of the matching block, two ends of the roller are respectively connected with the two assembly plates in a rotating way through a rotating shaft, and a silica gel sleeve is sleeved on the outer peripheral surface of the roller.
Preferably, the length of the roller is 8-12cm, the diameter is 3-4cm, and the thickness of the silica gel sleeve is 0.5-1.0cm.
Preferably, the top surface of the base is provided with a supporting pad for placing the knee joint of a patient, and the supporting pad is made of sponge.
Preferably, the lifting screw rod and the limiting rod are positioned on the same side of the top surface of the base.
Preferably, the lifting plate is in threaded connection with the lifting screw rod through a nut; the lifting plate is in sliding connection with the limiting rod through a sliding sleeve.
Preferably, the cross section of the turntable is T-shaped, and a hand-screwed locking screw for locking the turntable on the lifting plate is arranged on the top surface of the turntable; the edge of the top surface of the turntable is provided with a threaded hole, the hand-screwed locking screw is in threaded connection with the threaded hole, and the hand-screwed locking screw can be contacted with the top surface of the lifting plate through rotation.
Preferably, two mounting blocks are arranged on the bottom surface of the turntable at intervals, the two mounting blocks are positioned at two ends of one diameter of the bottom surface of the turntable, and the driving block is arranged between the two mounting blocks; the main body of the stepping screw motor is fixedly connected with one mounting block, and the screw rod of the stepping screw motor penetrates through the two mounting blocks and is rotationally connected with the two mounting blocks through a bearing.
Preferably, the side of the splint, which is used for contacting the human body, is provided with a silica gel block.
Preferably, the controller is a single chip microcomputer, the power supply device is a switching power supply, a power line interface is arranged on the outer side of the box body, and the power line interface is electrically connected with the switching power supply.
By adopting the technical scheme, the invention has the following beneficial effects:
1. The invention is used for assisting the patient to develop the patella loosening operation, thereby freeing the hands of the patient and avoiding the problems of labor saving and poor effect caused by the manual patella pushing mode of the patient; when the knee joint is used, a patient firstly places the knee joint on the base, and the patella is positioned right below the clamping mechanism; then, the lifting plate is driven to descend to a proper position by rotating a manual knob on the lifting screw rod, so that two clamping plates of the clamping mechanism are positioned on two opposite sides of the patella; then, the distance between the two clamping plates is adjusted by rotating the adjusting screw rod of the clamping mechanism, so that the two clamping plates clamp the patella; finally, starting the switch, and driving the stepping screw motor to move by the controller through the stepping motor driver to drive the clamping mechanism to linearly reciprocate, so that the function of pushing the patella is realized; the invention has the function of adjusting the direction of the pushing bone, not only can push the patella left and right, but also can push the patella back and forth; when the bone pushing direction is required to be changed, the turntable is only required to be rotated by 90 degrees, and the clamping mechanism is driven to rotate by the rotation of the turntable, so that the relative direction between the two clamping plates and the patella is changed; the invention can effectively improve the enthusiasm of patients for performing patella loosening operation, thereby improving the rehabilitation speed of knee joints.
2. The invention is also provided with a massaging device for massaging the patella, when a patient needs to massage the patella, the matching block of the massaging device is firstly arranged between two clamping plates of the clamping mechanism, and then the matching block is clamped and fixed by rotating the adjusting screw; then, determining the bone pushing mode as anterior-posterior pushing of the patella; then, the height of the lifting plate is adjusted to enable the massage device to descend to a proper height, and the silica gel of the massage device is sleeved on the patella; finally, starting the switch, and driving the roller to roll forwards and backwards by the clamping mechanism under the action of the linear reciprocating driving mechanism, and rolling the patella and the peripheral tissues thereof by the silica gel sleeve; the massaging device has the function of softening the peripheral tissues of the patella, and further improves the rehabilitation effect of patients after knee joint operation.
3. The lifting mechanism and the clamping mechanism are manually adjusted, so that the manufacturing cost can be reduced, on the one hand, a patient can conveniently adjust the clamping height and clamping tightness suitable for the patient, the lifting mechanism and the clamping mechanism have better comfort, and the situation that automatic adjustment is not skilled and accidental injury is easy to occur is avoided; the lifting mechanism of the invention has the advantages that the height adjustment and the tightness adjustment of the clamping mechanism are realized by adopting a screw rod rotation adjustment mode, the operation is very simple, the operation can be realized by one hand, and the convenience is good.
4. According to the invention, the support pad arranged on the base and the silica gel pad arranged on the inner side of the clamping plate can play a good role in buffering a patient, so that the comfort level of the patient in the patella pushing process is improved.
5. The linear reciprocating driving mechanism of the invention arranges the driving block and the stepping screw motor on the turntable, and the turntable is rotationally connected with the lifting plate, thereby facilitating the adjustment of the bone pushing direction by the patient through rotating the turntable; in addition, the top surface of carousel is provided with the hand of being used for locking the carousel on the lifter plate and twists the locking screw, has improved the stability of carousel, avoids the carousel to appear pivoted condition in step screw motor course of working.
6. The linear reciprocating driving mechanism adopts a mode that the stepping screw motor rotates to drive the driving block and the clamping mechanism to linearly reciprocate, and has the advantages of accurate stroke control, high moving stability, stable speed and the like.
7. The portable medical device has the advantages of simple structure, convenient use, low manufacturing cost, strong practicability, light weight, small volume and the like, has good portability, can be suitable for different application environments, can bring great convenience to medical staff and patients, and has good popularization significance.
Drawings
FIG. 1 is an elevation view of a patella loosening device according to an embodiment of the present invention;
FIG. 2 is a right side view of a patella loosening device according to an embodiment of the present invention;
FIG. 3 is a schematic view of a linear reciprocating drive mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic view of a clamping mechanism and a massage device according to an embodiment of the present invention;
Fig. 5 is a schematic structural view of a massage device according to an embodiment of the present invention;
Fig. 6 is an electrical connection schematic of a patella loosening device according to an embodiment of the present invention;
The main reference symbols in the drawings are as follows:
In the drawings, a 1-base, a 2-supporting pad, a 3-lifting plate, a 4-lifting screw rod, a 5-limiting rod, a 6-manual knob, a 7-nut, an 8-sliding sleeve, a 9-rotating disc, a 10-hand-screwing locking screw, an 11-threaded hole, a 12-driving block, a 13-stepping screw rod motor, a 14-mounting block, a 15-connecting seat, a 16-clamping plate, a 17-silica gel block, an 18-adjusting screw rod, a 19-box body, a 20-controller, a 21-stepping motor driver, a 22-power supply device, a 23-switch, a 24-power line interface, a 25-massaging device, a 26-matching block, a 27-assembling plate and a 28-roller.
The invention will be further described in the following detailed description in conjunction with the above-described figures.
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. The drawings are for illustrative purposes only, are schematic representations and are not intended to be limiting of the present patent, and in order to better illustrate the embodiments of the present invention, certain elements of the drawings may be omitted, enlarged or reduced, and not represent the actual product size, it will be understood by those skilled in the art that certain well-known structures, elements and descriptions thereof may be omitted, and that all other embodiments obtained by those skilled in the art without making inventive efforts are within the scope of protection of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Examples
As shown in fig. 1-6, the patella loosener comprises a base 1, a lifting mechanism, a linear reciprocating driving mechanism, a clamping mechanism and a control box. The base 1 is used as a carrier, the lifting mechanism is used for adjusting the heights of the linear reciprocating driving mechanism and the clamping mechanism, the linear reciprocating driving mechanism is used for driving the clamping mechanism to conduct linear reciprocating motion, the clamping mechanism is used for clamping and fixing the patella of a patient, therefore bone pushing training is conducted under the action of the linear reciprocating driving mechanism, and the control box is used for controlling the linear reciprocating driving mechanism to work.
The base 1 is a flat plate structure, and in this embodiment, the base 1 is made of an acrylic plate. The top surface of the base 1 is provided with a supporting pad 2 for placing knee joints of patients, and the supporting pad 2 is made of sponge. Preferably, the top surface of the support pad 2 is concave arc-shaped.
The lifting mechanism comprises a lifting plate 3, a lifting screw rod 4 and a limiting rod 5. The lifting plate 3 is arranged right above the base 1 and is arranged in parallel with the base 1; the lifting screw rod 4 and the limiting rod 5 are arranged on the top surface of the base 1at intervals and are perpendicular to the top surface of the base 1. The bottom of the lifting screw rod 4 is rotationally connected with the base 1, and the bottom of the limiting rod 5 is fixedly connected with the base 1. The lifting screw rod 4 is in threaded connection with the lifting plate 3, the limiting rod 5 is in sliding connection with the lifting plate 3, and a manual knob 6 is arranged at the top of the lifting screw rod 4. When the manual knob 6 rotates, the lifting screw rod 4 is driven to rotate, and the lifting plate 3 cannot rotate along with the lifting screw rod 4 due to the limiting effect of the limiting rod 5 and can only perform linear lifting action. Wherein, lift lead screw 4 and gag lever post 5 are located the homonymy of base 1 top surface. When the knee joint is used by a patient, the knee joint can extend into the support pad 2 from the opposite side of the lifting screw rod 4 and the limiting rod 5 and is placed on the support pad 2, so that the knee joint has good convenience. The lifting plate 3 is in threaded connection with the lifting screw rod 4 through the nut 7, and the lifting plate 3 is in sliding connection with the limiting rod 5 through the sliding sleeve 8, so that the lifting stability of the lifting plate 3 is further improved.
The linear reciprocating driving mechanism comprises a turntable 9, a driving block 12 and a stepping screw motor 13. The turntable 9 penetrates the top and bottom surfaces of the lifting plate 3 and is rotatably connected with the lifting plate 3. Specifically, the cross section of carousel 9 is T shape, and the top surface of carousel 9 is provided with the hand of being used for locking carousel 9 on lifter plate 3 and twists locking screw 10, and screw hole 11 has been seted up to the top surface border position of carousel 9, twists locking screw 10 and screw hole 11 threaded connection, twists locking screw 10 accessible rotation and lifter plate 3's top surface and touches. When the turntable 9 is required to be rotated, the hand-screwed locking screw 10 is loosened, and after the turntable 9 is rotated in place, the hand-screwed locking screw 10 is tightened, so that the rotary table is very convenient. The driving block 12 is slidably connected with the bottom surface of the turntable 9, and the sliding direction is a diameter direction of the bottom surface of the turntable 9. In this embodiment, a first chute is formed on the bottom surface of the turntable 9, and a first slider is disposed on the top of the driving block 12 and is slidably connected with the first chute through the first slider. The stepping screw motor 13 is fixedly arranged on the bottom surface of the turntable 9, and the screw is in threaded connection with the driving block 12 and is used for driving the driving block 12 to reciprocate. Specifically, two mounting blocks 14 are arranged on the bottom surface of the turntable 9 at intervals, the two mounting blocks 14 are located at two ends of one diameter of the bottom surface of the turntable 9, the driving block 12 is arranged between the two mounting blocks 14, the main body of the stepping screw motor 13 is fixedly connected with one mounting block 14, and the screw rod of the stepping screw motor 13 penetrates through the two mounting blocks 14 and is rotationally connected with the two mounting blocks 14 through a bearing.
The linear reciprocating driving mechanism of the invention arranges the driving block 12 and the stepping screw motor 13 on the turntable 9, and the turntable 9 is rotationally connected with the lifting plate 3, so that a patient can conveniently adjust the bone pushing direction by rotating the turntable 9; in addition, the top surface of carousel 9 is provided with and is used for locking carousel 9 on lifter plate 3 hand to twist locking screw 10, has improved the stability of carousel 9, avoids carousel 9 to appear pivoted condition in step screw motor 13 course of working.
The clamping mechanism comprises a connecting seat 15, two clamping plates 16 and an adjusting screw 18. The connecting seat 15 is arranged in parallel with the base 1, the top of the connecting seat 15 is fixedly connected with the bottom of the driving block 12, two clamping plates 16 are arranged on the bottom surface of the connecting seat 15 at intervals and are connected with the connecting seat 15 in a sliding mode, and the sliding direction is arranged in parallel with the sliding direction of the driving block 12. In this embodiment, the bottom surface of the connecting seat 15 is provided with a second sliding groove, and the top of the clamping plate 16 is provided with a second sliding block and is slidably connected with the second sliding groove through the second sliding block. The adjusting screw 18 vertically penetrates through the upper ends of the two clamping plates 16, and is respectively in threaded connection with the two clamping plates 16 through two sets of external threads with opposite directions. One end of the adjusting screw 18 is provided with an adjusting knob, and when the adjusting knob rotates, the adjusting screw 18 is driven to rotate, so that the two clamping plates 16 are driven to be close to each other or far away from each other. In addition, the side of the splint 16 for contacting the human body is provided with a silicone block 17 to improve patient comfort.
The lifting mechanism and the clamping mechanism are manually adjusted, so that the manufacturing cost can be reduced, on the one hand, a patient can conveniently adjust the clamping height and clamping tightness suitable for the patient, the lifting mechanism and the clamping mechanism have better comfort, and the situation that automatic adjustment is not skilled and accidental injury is easy to occur is avoided; the lifting mechanism of the invention has the advantages that the height adjustment and the tightness adjustment of the clamping mechanism are realized by adopting a screw rod rotation adjustment mode, the operation is very simple, the operation can be realized by one hand, and the convenience is good.
The control box comprises a box body 19, a controller 20, a stepping motor driver 21 and a power supply device 22, wherein the controller 20, the stepping motor driver 21 and the power supply device 22 are arranged in the box body 19. The box body 19 is fixedly arranged on the top surface of the turntable 9, a switch 23 is arranged on the outer side of the box body 19, the switch 23, the stepping motor driver 21 and the power supply device 22 are electrically connected with the controller 20, and the power supply device 22 and the stepping screw motor 13 are electrically connected with the stepping motor driver 21. The controller 20 controls the forward rotation and the reverse rotation of the stepping screw motor 13 through the stepping motor driver 21, and drives the driving block 12 to reciprocate on the bottom surface of the turntable 9 at a set speed and a set stroke. In this embodiment, the controller 20 is a single-chip microcomputer, the power supply device 22 is a switch 23 power supply, the outside of the box 19 is provided with a power line interface 24, and the power line interface 24 is electrically connected with the switch 23 power supply. The switch 23 power supply is provided with two sets of outputs, one set of which has a voltage of 5Vdc for use by the controller 20 and the other set of which has a voltage of 24Vdc for use by the stepper motor driver 21 and the stepper screw motor 13.
Wherein the step motor driver 21 is an actuator for converting an electric pulse into an angular displacement, and when the step motor driver receives a pulse signal, it drives the step motor to rotate a fixed angle (referred to as "pitch angle") in a set direction, and its rotation is operated step by step at a fixed angle; therefore, the angular displacement can be controlled by controlling the number of pulses, so that the aim of accurate positioning is fulfilled; meanwhile, the rotating speed and the acceleration of the motor can be controlled by controlling the pulse frequency, so that the purposes of speed regulation and positioning are achieved. In the present invention, the driving block 12 is driven by the stepping screw motor 13 to move a set stroke at a set speed, which belongs to the prior art, and the control principle and the corresponding connection circuit between the controller 20, the stepping motor driver 21 and the stepping screw motor 13 are not described in detail in the present specification. In order to improve the accuracy of the travel control, a positive limit switch 23 and a negative limit switch 23 can be further arranged on the bottom surface of the turntable 9, the travel of the driving block 12 can be precisely positioned, and the arrangement of the positive limit switch 23 and the negative limit switch 23 also belongs to the conventional prior art. In this embodiment, the initial position (i.e., the origin position) of the driving block 12 is located in the middle of the screw of the stepping screw motor 13, and the displacement of the driving block 12 relative to the initial position moving toward the two ends of the screw is set to be 1cm, so as to avoid the situation that the patella is damaged due to overlarge displacement.
The patella loosening device also includes a massaging device 25, the massaging device 25 including a mating block 26, two mounting plates 27, and a roller 28. The mating block 26 has a rectangular parallelepiped shape with a width smaller than the maximum distance between the two clamping plates 16; the two assembly plates 27 are respectively arranged on two opposite sides of the bottom surface of the matching block 26, two ends of the roller 28 are respectively connected with the two assembly plates 27 in a rotating way through a rotating shaft, and the outer peripheral surface of the roller 28 is sleeved with a silica gel sleeve. Wherein the length of the roller 28 is 8-12cm, the diameter is 3-4cm, and the thickness of the silica gel sleeve is 0.5-1.0cm. In this embodiment, the length of the roller 28 is 10cm, the diameter is 3.5cm, and the thickness of the silicone jacket is 0.8cm. When a patient needs to massage the patella, firstly, the matching block 26 of the massage device 25 is arranged between the two clamping plates 16 of the clamping mechanism, and then the matching block 26 is clamped and fixed by rotating the adjusting screw 18; then, determining the bone pushing mode as anterior-posterior pushing of the patella; then, the height of the lifting plate 3 is adjusted, so that the massage device 25 is lowered to a proper height, and the silica gel of the massage device 25 is sleeved on the patella; finally, the switch 23 is started, the clamping mechanism drives the rolling shaft to roll forwards and backwards under the action of the linear reciprocating driving mechanism, and the silica gel sleeve rolls the patella and the peripheral tissues thereof; the massaging device 25 of the present invention has a function of softening the peripheral tissue of the patella, further improving the rehabilitation effect of the patient after the knee joint surgery.
When the knee joint is used, a patient firstly places the knee joint on the base 1, and the patella is positioned right below the clamping mechanism; then, the lifting plate 3 is driven to descend to a proper position by rotating the manual knob 6 on the lifting screw rod 4, so that the two clamping plates 16 of the clamping mechanism are positioned on two opposite sides of the patella; then, the distance between the two clamping plates 16 is adjusted by rotating the adjusting screw 18 of the clamping mechanism, so that the two clamping plates 16 clamp the patella; finally, the switch 23 is started, and the controller 20 drives the stepping screw motor 13 to move through the stepping motor driver 21, so as to drive the clamping mechanism to linearly reciprocate, thereby realizing the function of pushing the patella. The invention has the function of adjusting the direction of the pushing bone, not only can push the patella left and right, but also can push the patella back and forth; when the bone pushing direction needs to be changed, the turntable 9 is only required to be rotated by 90 degrees, and the turntable 9 rotates to drive the clamping mechanism to rotate, so that the relative direction of the two clamping plates 16 and the patella is changed. The invention can effectively improve the enthusiasm of patients for performing patella loosening operation, thereby improving the rehabilitation speed of knee joints.
The invention is used for assisting the patient to develop the patella loosening operation, thereby freeing the hands of the patient and avoiding the problems of labor saving and poor effect caused by the manual patella pushing mode of the patient; the portable medical device has the advantages of simple structure, convenient use, low manufacturing cost, strong practicability, light weight, small volume and the like, has good portability, can be suitable for different application environments, can bring great convenience to medical staff and patients, and has good popularization significance.
The foregoing description is directed to the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the invention, and all equivalent changes or modifications made under the technical spirit of the present invention should be construed to fall within the scope of the present invention.
Claims (8)
1. The utility model provides a patella looseness ware, includes the base, the base is flat structure, its characterized in that: the device also comprises a lifting mechanism, a linear reciprocating driving mechanism, a clamping mechanism and a control box;
The lifting mechanism comprises a lifting plate, a lifting screw rod and a limiting rod; the lifting plate is arranged right above the base and is arranged in parallel with the base; the lifting screw rod and the limiting rod are arranged on the top surface of the base at intervals and are perpendicular to the top surface of the base; the bottom of the lifting screw rod is rotationally connected with the base, and the bottom of the limiting rod is fixedly connected with the base; the lifting screw rod is in threaded connection with the lifting plate, the limiting rod is in sliding connection with the lifting plate, and a manual knob is arranged at the top of the lifting screw rod;
The linear reciprocating driving mechanism comprises a turntable, a driving block and a stepping screw motor; the turntable penetrates through the top surface and the bottom surface of the lifting plate and is in rotary connection with the lifting plate; the driving block is in sliding connection with the bottom surface of the turntable, and the sliding direction is a diameter direction of the bottom surface of the turntable; the stepping screw rod motor is fixedly arranged on the bottom surface of the turntable, and a screw rod of the stepping screw rod motor is in threaded connection with the driving block and is used for driving the driving block to reciprocate;
the clamping mechanism comprises a connecting seat, two clamping plates and an adjusting screw; the connecting seat is arranged in parallel with the base, the top of the connecting seat is fixedly connected with the bottom of the driving block, the two clamping plates are arranged on the bottom surface of the connecting seat at intervals and are connected with the connecting seat in a sliding manner, and the sliding direction of the two clamping plates is arranged in parallel with the sliding direction of the driving block; the adjusting screw vertically penetrates through the upper ends of the two clamping plates and is respectively in threaded connection with the two clamping plates through two groups of external threads with opposite directions;
The control box comprises a box body, a controller, a stepping motor driver and a power supply device, wherein the controller, the stepping motor driver and the power supply device are arranged in the box body; the box body is fixedly arranged on the top surface of the turntable, a switch is arranged on the outer side of the box body, the switch, the stepping motor driver and the power supply device are electrically connected with the controller, and the power supply device and the stepping screw motor are electrically connected with the stepping motor driver; the controller controls the stepping screw motor to rotate forwards and backwards through the stepping motor driver, and drives the driving block to reciprocate on the bottom surface of the turntable at a set speed and stroke;
the patella loosening device also comprises a massaging device; the massage device comprises a matching block, two assembling plates and a roller; the matching block is in a cuboid shape, and the width of the matching block is smaller than the maximum distance between the two clamping plates; the two assembly plates are respectively arranged on two opposite sides of the bottom surface of the matching block, two ends of the roller are respectively connected with the two assembly plates in a rotating way through a rotating shaft, and a silica gel sleeve is sleeved on the outer peripheral surface of the roller;
The length of the roller is 8-12cm, the diameter of the roller is 3-4cm, and the thickness of the silica gel sleeve is 0.5-1.0cm;
the top surface of base is provided with the supporting pad that is used for the patient to place knee joint.
2. A patella loosening device as defined in claim 1, wherein: the supporting pad is made of sponge.
3. A patella loosening device as defined in claim 1, wherein: the lifting screw rod and the limiting rod are positioned on the same side of the top surface of the base.
4. A patella loosening device as defined in claim 3, wherein: the lifting plate is in threaded connection with the lifting screw rod through a nut; the lifting plate is in sliding connection with the limiting rod through a sliding sleeve.
5. A patella loosening device as defined in claim 1, wherein: the cross section of the turntable is T-shaped, and a hand-screwed locking screw for locking the turntable on the lifting plate is arranged on the top surface of the turntable; the edge of the top surface of the turntable is provided with a threaded hole, the hand-screwed locking screw is in threaded connection with the threaded hole, and the hand-screwed locking screw can be contacted with the top surface of the lifting plate through rotation.
6. A patella loosening device as defined in claim 1, wherein: two mounting blocks are arranged on the bottom surface of the turntable at intervals, the two mounting blocks are positioned at two ends of one diameter of the bottom surface of the turntable, and the driving block is arranged between the two mounting blocks; the main body of the stepping screw motor is fixedly connected with one mounting block, and the screw rod of the stepping screw motor penetrates through the two mounting blocks and is rotationally connected with the two mounting blocks through a bearing.
7. A patella loosening device as defined in claim 1, wherein: and a silica gel block is arranged on one side of the splint, which is used for contacting the human body.
8. A patella loosening device as defined in claim 1, wherein: the controller is a singlechip, the power supply device is a switching power supply, a power line interface is arranged on the outer side of the box body, and the power line interface is electrically connected with the switching power supply.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010168648.5A CN111184617B (en) | 2020-03-12 | 2020-03-12 | Patella loosening device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010168648.5A CN111184617B (en) | 2020-03-12 | 2020-03-12 | Patella loosening device |
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| CN111184617A CN111184617A (en) | 2020-05-22 |
| CN111184617B true CN111184617B (en) | 2024-08-30 |
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| CN112386443A (en) * | 2020-11-13 | 2021-02-23 | 河南大学淮河医院 | Be applied to intensive care unit's supplementary rehabilitation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212395317U (en) * | 2020-03-12 | 2021-01-26 | 广西医科大学第一附属医院 | Patella loosening device |
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| CN110151484A (en) * | 2019-06-19 | 2019-08-23 | 河南省人民医院 | Kneecap is loosened vibrator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212395317U (en) * | 2020-03-12 | 2021-01-26 | 广西医科大学第一附属医院 | Patella loosening device |
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