CN217908795U

CN217908795U - Device is tempered to seat standing position after knee joint replacement

Info

Publication number: CN217908795U
Application number: CN202221703202.9U
Authority: CN
Inventors: 严加洁; 刘宁; 张翠文; 郇松玮; 陈均源; 黎嘉咏; 洪杰; 曾嘉欣
Original assignee: First Affiliated Hospital of Jinan University
Current assignee: First Affiliated Hospital of Jinan University
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-11-29
Anticipated expiration: 2032-07-04

Abstract

The utility model provides a device is tempered to knee joint replacement postoperative seat stand belongs to knee bone joint postoperative rehabilitation technical field, and the device includes seat, support piece and extensible member. The support piece includes loop bar, first backup pad, slide bar, bracing piece and second backup pad, the loop bar articulate in the seat, first backup pad install in the loop bar, slide bar slidable mounting in the loop bar, the bracing piece is fixed in the one end of slide bar, the second backup pad is fixed in the bracing piece. The extensible member includes motor, screw sleeve pipe and screw rod, one side shell of motor articulate in seat bottom, the screw sleeve pipe with motor drive, the screw rod articulate install in first backup pad bottom, the screw rod with screw sleeve pipe thread installation, the device's suitability is higher, improves the compliance that the patient took exercise, does benefit to patient's recovery.

Description

Device is tempered to standing position of sitting behind knee joint replacement

Technical Field

The utility model relates to a knee joint postoperative rehabilitation technical field particularly, relates to a device is tempered to knee joint replacement postoperative seat.

Background

Knee osteoarthritis is a chronic, progressive disease that can lead to physical dysfunction in patients, and even disability in critically ill patients. Total knee arthroplasty is the main method for treating terminal knee osteoarthritis, and can help patients to relieve pain, recover joint function and improve life quality. And rehabilitation exercise is carried out in the early stage after the operation, the muscle strength recovery of the quadriceps femoris is promoted, and the rehabilitation training device has important significance for maintaining the stability of the knee joint, ensuring correct and stable gait of a patient after the operation and promoting the functional recovery of the knee joint. There are various methods for performing quadriceps femoris muscle strength training after knee replacement, and the conventional method mainly adopts: (1) passive knee extension exercise: sitting at the bedside, placing the side legs under the heel of the operative limb, slowly lifting the operative limb until the knee of the operative limb is straightened, keeping for 10s, and slowly lowering; (2) active knee extension exercise: sitting at the bedside, slowly lifting the legs of the operative limbs, keeping the knee joints of the operative limbs straightened for a certain time, and slowly putting down.

However, the above solution still has certain drawbacks, and the inventors have found through research that: 1. the compliance of the patient who exercises actively is not high, and the compliance of the patient who has the exercise device is improved; 2. the length of the current exercise device is not adjustable, and the device cannot be suitable for different patients. How to invent a sitting position exercise device after knee joint replacement to improve the problems becomes a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to compensate above not enough, the utility model provides a device is tempered to knee joint replacement postoperative seat, it is not high and temper the device and can not be applicable to different patient's use problem to aim at improving the compliance that the patient initiatively tempered.

The utility model discloses a realize like this: a sitting and standing exercise device used after knee joint replacement comprises a seat, a support piece and a telescopic piece.

The support piece includes loop bar, first backup pad, slide bar, bracing piece and second backup pad, the loop bar articulate in the seat, first backup pad install in the loop bar, slide bar slidable mounting in the loop bar, the bracing piece is fixed in the one end of slide bar, the second backup pad is fixed in the bracing piece.

The telescopic piece comprises a motor, a threaded sleeve and a screw rod, a shell on one side of the motor is hinged to the bottom of the seat, the threaded sleeve is in transmission with the motor, the screw rod is hinged to the bottom of the first supporting plate, and the screw rod is in threaded installation with the threaded sleeve.

In an embodiment of the present invention, the supporting member and the extensible member are provided with two sets, two sets of the supporting member and the extensible member are symmetrically arranged.

The utility model discloses an in one embodiment, the recess is seted up to the second backup pad, slidable mounting has the installation piece in the recess of second backup pad, be fixed with the mounting on the installation piece, the mounting is used for fixed patient's shank.

In an embodiment of the present invention, the fixing member is two binding bands with hook and loop fasteners.

The utility model discloses an in one embodiment, the recess bottom of second backup pad is provided with the mounting groove, force sensor is installed to the bottom in the mounting groove, the inside elastic component that is provided with of mounting groove, force sensor passes through the elastic component and is connected bottom the installation piece, install the display screen on the handrail of seat, display screen and force sensor electric connection.

In an embodiment of the present invention, the elastic member is one of a coil spring and an elastic cord.

The utility model discloses an in an embodiment, the device still includes the display, the display includes sleeve pipe, interior pole and glass pipe, the sleeve pipe is fixed in the seat, interior pole is fixed in the loop bar, interior pole sliding seal install in the sleeve pipe, the sleeve pipe with interior pole is convex, the sleeve pipe with interior pole is concentric circular arc, the sleeve pipe with the centre of a circle of interior pole for the loop bar with the turning point of seat, the glass pipe is fixed in on the handrail of seat, the glass pipe pass through the connecting pipe with the sleeve pipe intercommunication, glass inside sealed slidable mounting has the slider, the inside packing of sleeve pipe, connecting pipe and glass pipe has liquid, the glass manages the outer wall and can have the scale mark.

The utility model discloses an in the embodiment, the scale mark of glass pipe outer wall is the angle scale mark, the scale of scale mark corresponds the setting with the turned angle of loop bar.

In an embodiment of the present invention, the connecting pipe is a hard rubber pipe.

The beneficial effects of the utility model are that: the utility model discloses a knee joint replacement postoperative sits upright position exercise device obtains through above-mentioned design, during the use, when needing passively to stretch the knee exercise, will need the leg of taking exercise to place on first backup pad and second backup pad, the starter motor drives the screw thread sleeve pipe and rotates, and then makes the screw rod that the screw thread was installed in the screw thread sleeve pipe flexible, and then the screw rod jack-up or back-pull to first backup pad, makes support piece rotate for the seat, and then support piece drives the leg and carries out the passively to stretch the knee exercise; when the active knee stretching exercise is needed, the leg part is fixed on the second supporting plate, the active load-bearing knee stretching exercise is carried out, or the leg part is not fixed with the supporting part to carry out the active free knee stretching exercise. Through the slip of slide bar in the loop bar for the distance of second backup pad and first backup pad can be adjusted, and then makes support piece applicable to the patient of different leg lengths and use, and the device's suitability is higher, improves the compliance that the patient took exercise, does benefit to patient's recovery.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a sitting position exercise device after knee joint replacement provided by an embodiment of the present invention;

fig. 2 is a schematic view of an installation structure of the telescopic member according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a supporting member according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a display part according to an embodiment of the present invention;

FIG. 5 is an enlarged view of position A of FIG. 4;

fig. 6 is a schematic view of an internal structure of a glass tube according to an embodiment of the present invention.

In the figure: 100. a seat; 200. a support member; 210. a loop bar; 220. a first support plate; 230. a slide bar; 240. a support bar; 250. a second support plate; 251. mounting grooves; 260. mounting blocks; 261. a fixing member; 270. an elastic member; 280. a tension sensor; 300. a telescoping member; 310. a motor; 320. a threaded bushing; 330. a screw; 400. a display member; 410. a sleeve; 420. an inner rod; 430. a glass tube; 431. a slide block.

Detailed Description

The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.

It will be understood that when an element is referred to as being "connected" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a sitting and standing exercise device used after knee joint replacement comprises a seat 100, a supporting piece 200 and a telescopic piece 300.

Referring to fig. 3, two sets of supporting members 200 and telescopic members 300 are provided, and the two sets of supporting members 200 and telescopic members 300 are symmetrically arranged, wherein the supporting member 200 includes a loop bar 210, a first supporting plate 220, a sliding bar 230, a supporting bar 240 and a second supporting plate 250, the loop bar 210 is hinged to the seat 100, the first supporting plate 220 is installed on the loop bar 210, the sliding bar 230 is installed on the loop bar 210 in a sliding manner, the supporting bar 240 is fixed at one end of the sliding bar 230, and the second supporting plate 250 is fixed on the supporting bar 240;

the extensible member 300 comprises a motor 310, a threaded sleeve 320 and a screw 330, wherein a housing at one side of the motor 310 is hinged at the bottom of the seat 100, the threaded sleeve 320 is in transmission with the motor 310, the screw 330 is hinged at the bottom of the first support plate 220, and the screw 330 is in threaded installation with the threaded sleeve 320.

Referring to fig. 4 and 5, in some specific embodiments, the second support plate 250 is provided with a groove, the mounting block 260 is slidably mounted in the groove of the second support plate 250, a fixing member 261 is fixed on the mounting block 260, the fixing member 261 is used for fixing a leg of a patient, the fixing member 261 is two straps with magic tapes, a mounting groove 251 is formed in the bottom of the groove of the second support plate 250, a tension sensor 280 is mounted at the bottom of the mounting groove 251, an elastic member 270 is arranged inside the mounting groove 251, the tension sensor 280 is connected with the bottom of the mounting block 260 through the elastic member 270, the elastic member 270 is one of a spiral spring or an elastic pull rope, a display screen is mounted on a handrail of the chair 100, the display screen is electrically connected with the tension sensor 280, specifically, the tension sensor 280 should be electrically connected with the single chip microcomputer, the display screen is electrically connected with the single chip microcomputer, a signal of the tension sensor 280 is transmitted to the single chip microcomputer, the single chip microcomputer processes and transmits data to the display screen for displaying, when active knee extension exercise needs to be performed, the leg fixing the fixing member 261, the leg lifts the mounting block 260, the elastic member 270 extends, the tension sensor generates tension, and further displays the resistance of the exercise screen, and the patient can indirectly obtain the strength feedback of the strength of the patient.

Referring to fig. 6, in some specific embodiments, the display device 400 further includes a display device 400, the display device 400 includes a sleeve 410, an inner rod 420, and a glass tube 430, the sleeve 410 is fixed to the seat 100, the inner rod 420 is fixed to the sleeve 210, the inner rod 420 is slidably and hermetically mounted on the sleeve 410, the sleeve 410 and the inner rod 420 are both arc-shaped, the sleeve 410 and the inner rod 420 are concentric arcs, a center of the sleeve 410 and a center of the inner rod 420 are a rotation point of the sleeve 210 and the seat 100, the glass tube 430 is fixed to an armrest of the seat 100, the glass tube 430 is communicated with the sleeve 410 through a connecting tube, the connecting tube is a hard rubber tube, a sliding block 431 is hermetically and slidably mounted inside the glass tube 430, liquid is filled inside the sleeve 410, the connecting tube, and the glass tube 430, the outer wall of the glass tube 430 may have scale marks, the scale marks on the outer wall of the glass tube 430 are angle scale marks, and the scale marks are set corresponding to a rotation angle of the sleeve 210. When the knee stretching exercise is carried out, the loop bar 210 rotates, the inner rod 420 slides in the sleeve 410, liquid in the loop bar 210 is further enabled to move towards the glass tube 430 or leave the glass tube 430 through the connecting tube, the sliding block 431 moves in the glass tube 430 at the moment, a patient can know the rotation angle of the loop bar 210 through the scale marks, namely the self-buckling angle, the patient can feed back information at every time, and the confidence and the exercise compliance of the patient are improved.

The working principle is as follows: when the passive knee extension exerciser is used, when the passive knee extension exerciser is needed, legs needing to be exercised are placed on the first support plate 220 and the second support plate 250, the motor 310 is started to drive the threaded sleeve 320 to rotate, so that the screw 330 arranged in the threaded sleeve 320 extends and retracts, the screw 330 jacks or pulls back the first support plate 220, the support piece 200 rotates relative to the seat 100, and the support piece 200 drives the legs to perform the passive knee extension exerciser; when the active knee extension exercise is required, the leg is fixed on the second support plate 250 to perform the active weight bearing knee extension exercise, or the leg is not fixed with the support member 200 to perform the active free knee extension exercise. The sliding of the sliding rod 230 in the sleeve rod 210 allows the distance between the second supporting plate 250 and the first supporting plate 220 to be adjusted, so that the supporting member 200 can be suitable for patients with different leg lengths.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A sitting and standing exercise device after knee joint replacement is characterized by comprising

The seat comprises a seat (100), a support (200) and a telescopic piece (300), wherein the support (200) comprises a loop bar (210), a first support plate (220), a slide bar (230), a support bar (240) and a second support plate (250), the loop bar (210) is hinged to the seat (100), the first support plate (220) is mounted on the loop bar (210), the slide bar (230) is slidably mounted on the loop bar (210), the support bar (240) is fixed at one end of the slide bar (230), and the second support plate (250) is fixed on the support bar (240);

the telescopic piece (300) comprises a motor (310), a threaded sleeve (320) and a screw rod (330), a shell on one side of the motor (310) is hinged to the bottom of the seat (100), the threaded sleeve (320) is in transmission with the motor (310), the screw rod (330) is hinged to the bottom of the first supporting plate (220), and the screw rod (330) is in threaded installation with the threaded sleeve (320).

2. The post-knee replacement sitting exercise device according to claim 1, wherein the support member (200) and the expansion member (300) are provided in two sets, and the support member (200) and the expansion member (300) are symmetrically provided.

3. The post-knee replacement sitting position exercise device according to claim 1, wherein the second support plate (250) is provided with a groove, a mounting block (260) is slidably mounted in the groove of the second support plate (250), a fixing member (261) is fixed on the mounting block (260), and the fixing member (261) is used for fixing the leg of the patient.

4. The post-knee replacement seat exercise device according to claim 3, wherein the fixing member (261) is two straps with hook and loop fasteners.

5. The post-knee replacement sitting exercise device according to claim 3, wherein a mounting groove (251) is formed at the bottom of the groove of the second support plate (250), a tension sensor (280) is mounted at the bottom of the mounting groove (251), an elastic member (270) is disposed inside the mounting groove (251), the tension sensor (280) is connected with the bottom of the mounting block (260) through the elastic member (270), and a display screen is mounted on the armrest of the seat (100) and electrically connected with the tension sensor (280).

6. The post-knee replacement seat exercise device according to claim 5, wherein the elastic member (270) is one of a coil spring or a resilient cord.

7. The post-knee replacement sitting position exercise device according to claim 1, further comprising a display (400), wherein the display (400) comprises a sleeve (410), an inner rod (420) and a glass tube (430), the sleeve (410) is fixed to the seat (100), the inner rod (420) is fixed to the loop bar (210), the inner rod (420) is slidably and sealingly installed on the sleeve (410), the sleeve (410) and the inner rod (420) are both arc-shaped, the sleeve (410) and the inner rod (420) are concentric arcs, the circle centers of the sleeve (410) and the inner rod (420) are rotation points of the loop bar (210) and the seat (100), the glass tube (430) is fixed to an armrest of the seat (100), the glass tube (430) is communicated with the sleeve (410) through a connecting tube, a sliding block (431) is sealingly and slidably installed inside the glass tube (430), the sleeve (410), the connecting tube and the glass tube (430) are filled with liquid, and the outer wall of the glass tube (430) can have a scale mark.

8. The post-knee replacement seat exercising device according to claim 7, wherein the scale marks on the outer wall of the glass tube (430) are angle scale marks, and the scale marks are arranged corresponding to the rotation angle of the loop bar (210).

9. The post-knee replacement seat exercise device of claim 8, wherein the connection tube is a hard rubber tube.