Quadriceps femoris training device

By designing a quadriceps trainer that includes a pressure sensor and a limiting component, the problem of irregular training movements for bedridden patients is solved, and a more efficient quadriceps training effect is achieved.

CN223366178UActive Publication Date: 2025-09-23TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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Patent Information

Application Number
CN202422472820.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-14
Publication Date
2025-09-23
Estimated Expiration
2034-10-14

AI Technical Summary

Technical Problem

Existing devices are difficult to standardize quadriceps training movements for bedridden patients with limited mobility, resulting in poor training effects.

Method used

A quadriceps training device was designed, which includes a pressure sensor, a spring, a slider, a crossbar and a display screen. It can measure and display the training pressure, and assist patients to complete standardized training movements through limiting components such as a tube body and a telescopic rod.

Benefits of technology

It improves the standardization and effectiveness of quadriceps training for bedridden patients, and enhances the scientific nature and effectiveness of training through real-time feedback and movement standardization assistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of training devices, and discloses a quadriceps femoris training device which comprises a bottom plate, wherein a shell is arranged at the top of the bottom plate; a training assembly is arranged in the shell, and the training assembly comprises a pressure sensor arranged on the inner side wall of the bottom of the shell; the spring is arranged in the shell, and the bottom end of the spring is connected with the pressure sensor; the sliding block is arranged at the top of the spring; the cross rod is arranged on the inner side of the shell, and two ends are connected with the sliding blocks; according to the training device, quadriceps femoris muscles can be exercised when a patient presses downwards through the training assembly by means of a spring, a sliding block and a transverse rod, meanwhile, a pressure value can be observed through a pressure sensor display screen and a counter, training is conducted regularly during training, and the training effect is improved. According to the training device, through the design of the pipe body, the telescopic rod and the arc-shaped rod, a patient can be assisted to complete the action of stretching the legs and pressing down through the limiting assembly, so that the action of the patient is more standard during training, and the training effect is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of training devices, in particular to a quadriceps training device. Background Art

[0002] The quadriceps femoris is the most important muscle group in the human thigh. It is not only responsible for the main force in daily walking, going up and down stairs, squatting and other movements, but also responsible for the stability of the knee joint, especially the anterior-posterior stability of the patella and knee joint. Patients who need to stay in bed after major surgery are at risk of lower limb venous thrombosis, practical muscle atrophy, lower limb swelling and other risks due to limited movement. Patients need to be guided to perform early functional exercises in bed. Quadriceps femoris static contraction training is the simplest and most practical exercise method for quadriceps femoris after surgery. It can squeeze the blood vessels between muscles through the contraction and relaxation of muscles, promote the return of veins and lymph, improve blood circulation, reduce limb swelling, increase muscle strength, and promote postoperative recovery. However, the effect is often affected by the patient's inadequate training movements or insufficient training volume. Therefore, a pressure-measurable and countable quadriceps femoris static training auxiliary symptom is needed to change the current situation and achieve training effects.

[0003] Existing devices generally use exercise chairs to train the quadriceps. Patients need to sit on the chair and lift their legs, which creates a certain amount of tension on the legs. This creates a weight when lifting the legs, which can exercise the quadriceps. However, this is inconvenient for patients with limited mobility. Existing methods usually perform exercises on the bed, placing a rolled towel under the patient's popliteal fossa and forcing the knees to press down. This exercise method has a small range of motion, and patients often do not perform the exercises correctly and do not reach the required number of training times, resulting in poor training results. Therefore, a bed-based quadriceps exercise device was designed to address the above-mentioned issues. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the deficiencies of the existing technology, the present invention provides a quadriceps training device, which has the advantage of being better used by bedridden patients with limited mobility, and solves the problem that the existing device can standardize movements and improve the training effect.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a quadriceps trainer, comprising: a base plate with a shell provided on the top; a training component provided inside the shell, the training component comprising: a pressure sensor provided on the bottom inner wall of the shell; a spring provided inside the shell, and the bottom end of the spring provided on the top of the spring; a cross bar provided on the inner side of the shell, and the two ends of the cross bar provided on the slider; a display screen provided on the outer side wall of the shell, and connected to the pressure sensor via a data line for displaying the pressure value; a timer provided on the outer side wall of the shell.

[0008] In some embodiments, the crossbar is designed as a cylindrical rod.

[0009] In some embodiments, the training component further includes: a vertical rod disposed on the inner side of the spring, with a top end penetrating the slider and connected to the inner wall of the shell, and a bottom end connected to the spring.

[0010] In some embodiments, the training component further comprises: a sponge sleeve disposed on the outer side wall of the cross bar.

[0011] In some embodiments, a limiting component is provided on the outer wall of the shell, and the limiting component includes: a tube body provided on the outer wall of the shell; one end of the telescopic rod is inserted into the interior of the tube body; and both ends of the arc rod are connected to one end of the telescopic rod.

[0012] In some embodiments, the limiting assembly further includes: a bottom end of a bolt passing through an outer side wall of one end of the tube body and being threadedly connected to the tube body.

[0013] In some embodiments, the limiting assembly further includes: a rectangular rod disposed inside the telescopic rod, and one end of the rectangular rod passes through the inner wall of the telescopic rod and is connected to the inner wall of the tube body.

[0014] In some embodiments, the limiting assembly further includes: a baffle disposed at one end of the rectangular rod.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a quadriceps training device with the following beneficial effects:

[0017] 1. This trainer, through the training components, uses springs, sliders and crossbars to enable patients to exercise their quadriceps when pressing down. At the same time, the pressure sensor display and counter can observe the pressure value and the regularity of the training, thereby improving the training effect.

[0018] 2. The trainer can assist the patient in completing the leg straightening and pressing movement by limiting the design of the tube body, telescopic rod and arc rod of the trainer, so that the patient's movement is more standardized during training and the training effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure inside the shell of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure inside the tube body of the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the telescopic rod of the utility model.

[0023] In the figure: 11, bottom plate; 12, housing;

[0024] 2. Training component; 21. Pressure sensor; 22. Spring; 23. Slider; 24. Crossbar; 25. Display; 26. Timer; 27. Vertical pole; 28. Sponge cover;

[0025] 3. Restriction assembly; 31. Tube body; 32. Telescopic rod; 33. Arc rod; 34. Bolt; 35. Rectangular rod; 36. Baffle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0030] The quadriceps femoris is the most important muscle group in the human thigh. It is not only responsible for the main force in daily walking, going up and down stairs, squatting and other movements, but also responsible for the stability of the knee joint, especially the anterior-posterior stability of the patella and knee joint. Patients who need to stay in bed after major surgery are at risk of lower limb venous thrombosis, practical muscle atrophy, lower limb swelling and other risks due to limited movement. Patients need to be guided to perform early functional exercises in bed. Quadriceps femoris static contraction training is the simplest and most practical exercise method for quadriceps femoris after surgery. It can squeeze the blood vessels between muscles through the contraction and relaxation of muscles, promote the return of veins and lymph, improve blood circulation, reduce limb swelling, increase muscle strength, and promote postoperative recovery. However, the effect is often affected by the patient's inadequate training movements or insufficient training volume. Therefore, a pressure-measurable and countable quadriceps femoris static training auxiliary symptom is needed to change the current situation and achieve training effects.

[0031] In the related art, the existing devices generally use an exercise chair to exercise the quadriceps. The patient needs to sit on the chair and lift his legs. In this process, a certain pulling force will be applied to the legs, so that there is weight when lifting the legs, which can exercise the quadriceps. However, it is inconvenient for patients with limited mobility. The existing method is to exercise on the hospital bed and put a towel roll under the patient's popliteal fossa to let the knees press down hard. This exercise method has a small amplitude. The patient's training movements are usually not standard, and the number of training times is not reached, so the training effect is poor.

[0032] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides a quadriceps trainer. When it is necessary to exercise the quadriceps of a patient who is inconvenient to move, first place the base plate 11 flat on the bed, then place the patient's legs on the shell 12, and place the popliteal fossa on the cross bar 24. At this time, you only need to straighten your legs and press down. At this time, the downward force drives the slider 23 to slide downward inside the shell 12, and at the same time compresses the spring 22. At this time, the pressure exerted on the pressure sensor 21 is displayed on the display screen 25. When a certain value is reached, it is necessary to start the timer 26, maintain this action for 5 seconds, and then lift the leg upward. At the same time, the spring 22 rebounds and pushes the slider 23 to slide upward, driving the cross bar 24 to move upward. Repeat the above method many times to exercise the quadriceps of the leg.

[0033] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0034] Combine Figures 1-4 , an embodiment of the present application provides a quadriceps trainer, comprising: a base plate 11 with a shell 12 on the top; a training component 2 is provided inside the shell 12, and the training component 2 includes: a pressure sensor 21 fixedly arranged on the bottom inner wall of the shell 12; a spring 22 is arranged inside the shell 12, and the bottom end is connected to the pressure sensor 21; a slider 23 is fixedly arranged on the top of the spring 22; a cross bar 24 is arranged on the inner side of the shell 12, and the two ends are fixedly connected to the slider 23; a display screen 25 is arranged on the outer wall of the shell 12, and is connected to the pressure sensor 21 through a data line for displaying the pressure value; a timer 26 is arranged on the outer wall of the shell 12.

[0035] Specifically, the pressure sensor 21 is a MEMS resistive pressure sensor, and the display screen 25 is NTS-4800, which can display the pressure value in real time when the pressure sensor 21 detects the pressure. The timer 26 is XE78J0201-CHJ.

[0036] During use, when it is necessary to exercise the quadriceps of a patient who is inconvenient to move, first place the base plate 11 flat on the bed, then place the patient's legs on the shell 12, and put the popliteal fossa on the cross bar 24. At this time, you only need to straighten the legs and press down. At this time, the downward force drives the slider 23 to slide downward inside the shell 12, and at the same time compresses the spring 22. At this time, the pressure exerted on the pressure sensor 21 is displayed on the display screen 25. When a certain value is reached, it is necessary to start the timer 26, maintain this action for 5 seconds, and then lift the legs upward. At the same time, the spring 22 rebounds and pushes the slider 23 to slide upward, driving the cross bar 24 to move upward. Repeat the above method many times to exercise the quadriceps of the legs.

[0037] In some embodiments, the crossbar 24 is designed as a cylindrical rod.

[0038] When in use, the crossbar 24 is designed as a cylindrical rod with a smoother surface, which can reduce discomfort when placed in the popliteal fossa.

[0039] In some embodiments, the training component 2 further includes: a vertical rod 27 disposed on the inner side of the spring 22 , with the top end penetrating the slider 23 and connected to the inner wall of the housing 12 , and the bottom end connected to the spring 22 .

[0040] During use, the design of the vertical rod 27 can ensure that when the spring 22 is squeezed and compressed, the vertical rod 27 will limit the spring 22 and keep it from bending, thereby extending the service life of the spring 22.

[0041] In some embodiments, the training assembly 2 further includes a sponge cover 28 sleeved on the outer side wall of the cross bar 24 .

[0042] The design of the sponge cover 28 during use uses a soft material so that it will not scratch the patient when in contact with the patient's skin, thereby improving comfort.

[0043] In some embodiments, a limiting component 3 is provided on the outer wall of the shell 12, and the limiting component 3 includes: a tube body 31 provided on the outer wall of the shell 12; one end of the telescopic rod 32 is inserted into the interior of the tube body 31; and both ends of the arc rod 33 are connected to one end of the telescopic rod 32.

[0044] During use, in order to ensure that the length can be adjusted according to the patient's calf length when pressing the leg down, the telescopic rod 32 is pulled out from the inside of the tube body 31, and then the curved rod 33 can be hooked with the foot to straighten the leg and press it down, which can limit the patient's ankle from shaking left and right and assist the patient in completing the movement.

[0045] In some embodiments, the limiting assembly 3 further includes: a bottom end of a bolt 34 passes through an outer side wall of one end of the tube body 31 and is threadedly connected to the tube body 31 .

[0046] During use, the bolt 34 can be arranged so that after the length of the telescopic rod 32 is adjusted, the bottom end of the bolt 34 is rotated so as to abut against the telescopic rod 32 and squeeze and fix the position of the telescopic rod 32 .

[0047] In some embodiments, the limiting assembly 3 further includes: a rectangular rod 35 disposed inside the telescopic rod 32 , and one end of which penetrates the inner wall of the telescopic rod 32 and is connected to the inner wall of the tube body 31 .

[0048] During use, the telescopic rod 32 is extended and retracted inside the tube body 31 while the rectangular rod 35 is drawn out from the inside of the telescopic rod 32 . The design of the rectangular rod 35 can ensure that the telescopic rod 32 does not move while moving.

[0049] In some embodiments, the limiting assembly 3 further includes a baffle 36 disposed at one end of the rectangular rod 35 .

[0050] The design of the baffle 36 can prevent the rectangular rod 35 from being separated from the telescopic rod 32 during use, while limiting the telescopic rod 32 from being drawn out from the interior of the tube body 31 .

[0051] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", "some examples", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0052] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0053] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quadriceps training device comprising: A bottom plate (11) with a housing (12) disposed on the top thereof; The invention is characterized in that a training component (2) is provided inside the housing (12), and the training component (2) comprises: a pressure sensor (21), arranged on the bottom inner wall of the housing (12); a spring (22) disposed inside the housing (12) and having a bottom end connected to the pressure sensor (21); A slider (23) is arranged on the top of the spring (22); A cross bar (24) is provided on the inner side of the housing (12) and connected to the slider (23) at both ends; a display screen (25), arranged on the outer wall of the housing (12) and connected to the pressure sensor (21) via a data line, for displaying pressure values; A timer (26) is arranged on the outer side wall of the housing (12).

2. A quadriceps training device according to claim 1, characterized in that: The crossbar (24) is designed as a cylindrical rod.

3. The quadriceps training device according to claim 1, characterized in that: The training component (2) further comprises: The vertical rod (27) is arranged on the inner side of the spring (22), and the top end thereof passes through the slider (23) and is connected to the inner wall of the housing (12), and the bottom end thereof is connected to the spring (22).

4. The quadriceps training device according to claim 1, characterized in that: The training component (2) further comprises: The sponge sleeve (28) is sleeved on the outer side wall of the cross bar (24).

5. The quadriceps training device according to claim 1, characterized in that: A limiting assembly (3) is provided on the outer side wall of the housing (12), and the limiting assembly (3) comprises: A tube body (31) is provided on the outer side wall of the housing (12); a telescopic rod (32), one end of which is inserted into the interior of the tube (31); The arc-shaped rod (33) has two ends connected to one end of the telescopic rod (32).

6. The quadriceps training device according to claim 5, characterized in that: The limiting component (3) further comprises: The bottom end of the bolt (34) passes through the outer wall of one end of the tube body (31) and is threadedly connected to the tube body (31).

7. The quadriceps training device according to claim 5, characterized in that: The limiting component (3) further comprises: A rectangular rod (35) is arranged inside the telescopic rod (32), and one end of the rectangular rod passes through the inner wall of the telescopic rod (32) and is connected to the inner wall of the tube body (31).

8. The quadriceps training device according to claim 7, characterized in that: The limiting component (3) further comprises: A baffle (36) is provided at one end of the rectangular rod (35).