Internal arteriovenous fistula grip strength exerciser structure

Abstract

The utility model relates to an internal arteriovenous fistula grip strength exerciser structure which comprises a base, a fixed handle and a movable handle. The fixed handle and the movable handle are arranged side by side. The fixed handle is fixedly connected with the base, an extension arm is transversely arranged at the end, close to the base, of the movable handle, the movable handle is hinged to the base through the extension arm, and the rotation direction of the extension arm is coplanar with the fixed handle. An adjusting screw rod is arranged on the extension arm in parallel, a screw rod sleeve is arranged on the adjusting screw rod, a mounting frame is arranged on one side, deviating from the fixed handle, of the base, and the mounting frame is connected with the screw rod sleeve through a spring; a pressure indicating lamp and a pressure triggering assembly for triggering the pressure indicating lamp when being pressed are arranged on the base; according to the utility model, the whole structure is simple, the adjustment is convenient, more refined grip strength adjustment can be realized through the adjusting screw rod, whether the grip strength reaches the standard or not can be prompted to a patient through the cooperation of the pressure triggering assembly and the pressure indicating lamp, and the functions are rich.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a structure for an arteriovenous fistula grip strength training device. Background Technology

[0002] Arteriovenous fistulas (AVFs) are permanent vascular access points primarily used in hemodialysis, serving as a lifeline for patients. Regular intensive exercises can begin two weeks after fistula formation surgery to help dilate the fistula vessels. The maturation of an AVF takes 4–12 weeks, and expert consensus suggests that postoperative functional exercises can promote fistula maturation. Clinically, approximately 20%–50% of AVFs fail to mature into functional vascular access points. Therefore, using a hand grip strengthener for postoperative arm exercises is currently an important measure to promote fistula maturation.

[0003] Existing arteriovenous fistula grip strength training devices are inconvenient to adjust grip strength during use, and the adjustment increments are large, which is not conducive to the patient's gradual rehabilitation treatment. Moreover, it is impossible to know whether the patient's grip strength has reached the standard during the rehabilitation process. Therefore, it is necessary to propose a device that is easy to adjust and allows for visualization of grip strength effects. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a grip strength training device structure for arteriovenous fistulas, which can effectively solve the aforementioned problems.

[0005] To achieve the above requirements, the technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] A grip strength training device for arteriovenous fistulas is provided, comprising a base, and a fixed handle and a movable handle arranged side by side. The fixed handle is fixedly connected to the base. The movable handle has an extension arm laterally provided at one end near the base. The movable handle is hinged to the base via the extension arm, and the rotation direction of the extension arm is coplanar with that of the fixed handle. An adjusting screw is provided parallel to the extension arm, and a screw sleeve is provided on the adjusting screw. A mounting bracket is provided on the side of the base opposite to the fixed handle, and the mounting bracket is connected to the screw sleeve via a spring. The base is provided with a pressure indicator light and a pressure triggering component that triggers the pressure indicator light when pressure is applied.

[0007] The arteriovenous fistula grip strength training device structure of this utility model includes a fixed handle integrally connected to the base.

[0008] The arteriovenous fistula grip strength training device structure of this utility model has a pressure indicator light located on the side of the base away from the extension arm.

[0009] The arteriovenous fistula grip strength training device structure of this utility model includes a pressure triggering component comprising a microcontroller and a pressure sensor electrically connected thereto, a pressure indicator light electrically connected to the microcontroller, and the pressure sensor being disposed on the side wall of the fixed handle opposite to the movable handle.

[0010] The arteriovenous fistula grip strength training device structure of this utility model includes multiple pressure sensors that are evenly arranged along the length of the fixed handle.

[0011] The arteriovenous fistula grip strength training device structure of this utility model includes a mounting cavity in the base, and a microcontroller is located in the mounting cavity.

[0012] The arteriovenous fistula grip strength training device structure of this utility model includes a battery compartment inside the fixed handle, which contains a battery that powers the microcontroller, and the battery compartment is connected to the mounting cavity through a connecting channel.

[0013] The arteriovenous fistula grip strength training device structure of this utility model includes a display on the base that is electrically connected to the single-chip microcomputer, and the display is used to display pressure values.

[0014] The arteriovenous fistula grip strength training device structure of this utility model includes an extension arm with a strip-shaped groove along its length. One end of the strip-shaped groove away from the base passes through the end of the extension arm. An adjusting screw is disposed in the strip-shaped groove and is rotatably connected to the side wall of the strip-shaped groove near the base via a bearing. The width of the strip-shaped groove is the same as the width of the screw sleeve. When assembled, the two opposite sides of the screw sleeve slide against the two side walls of the strip-shaped groove.

[0015] The arteriovenous fistula grip strength training device structure of this utility model has an adjusting cap that is longitudinally rotatably provided at the end of the extension arm away from the base, and the adjusting cap is fixedly connected to the adjusting screw.

[0016] The advantages of this utility model are as follows: the overall structure of this utility model is simple and easy to adjust. More precise grip strength adjustment can be achieved by adjusting the screw. Moreover, the combination of the pressure trigger component and the pressure indicator light can indicate to the patient whether their grip strength meets the standard. It is simple to use and has rich functions. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall bird's-eye view of this utility model.

[0019] Figure 2 This is a top view of the entire utility model.

[0020] Figure 3 yes Figure 2 AA sectional view. Detailed Implementation

[0021] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] The preferred embodiment of this utility model describes the structure of the arteriovenous fistula grip strength training device, such as... Figure 1-3 As shown, the device includes a base 10, and two side-by-side fixed handles 20 and movable handles 30. The fixed handle 20 is fixedly connected to the base 10. The movable handle 30 has an extension arm 40 at one end near the base 10 to form a figure-7 shape. The movable handle 30 is hinged to the base 10 via the extension arm 40. The rotation direction of the extension arm 40 is coplanar with that of the fixed handle 20. Specifically, the movable handle 30 is located at one end of the extension arm 40 near the base 10. An adjusting screw 50 is provided parallel to the extension arm 40. The adjusting screw 50 is located on the upper side of the extension arm 40. A screw sleeve 60 is threaded onto the adjusting screw 50. A mounting bracket 70 is provided on the side of the base 10 away from the fixed handle 20. The mounting bracket 70 is connected to the screw sleeve 60 via a spring 80. The mounting bracket 70 is integrally connected to the base 10 for easy manufacturing.

[0026] The base 10 is equipped with a pressure indicator light 90 and a pressure triggering component 100 that triggers the pressure indicator light 90 when pressure is applied. When the patient grips the fixed handle 20 and the movable handle 30, the pressure triggering component 100 is pressed down by the palm and reaches its threshold, which illuminates the pressure indicator light 90. At this time, the patient can know whether their grip strength meets the standard. Generally, a green light is used to indicate that it is qualified. If it is unqualified or has not reached the standard grip strength, a red light will illuminate. The overall structure of this utility model is simple and easy to adjust. More refined grip strength adjustment can be achieved by adjusting the screw 50. Moreover, the combination of the pressure triggering component 100 and the pressure indicator light 90 can indicate to the patient whether their grip strength meets the standard. It is simple to use and has rich functions.

[0027] In this embodiment, the fixed handle 20 is integrally connected to the base 10. The mounting bracket 70, the fixed handle 20, and the base 10 are all integrally injection molded from plastic, which ensures structural strength while also facilitating processing and manufacturing.

[0028] In this embodiment, the pressure indicator light 90 is located on the side of the base 10 away from the extension arm 40, so that the patient can intuitively observe the status of the pressure indicator light 90.

[0029] In this embodiment, the pressure triggering component 100 includes a microcontroller 101 and a pressure sensor 102 electrically connected to it. The microcontroller 101 can be a commercially available 89 or ARM series. The pressure indicator light 90 is electrically connected to the microcontroller 101, and the detection circuit of the pressure sensor 102 can be implemented using a conventional LM2904 pressure sensor 102 detection circuit. The pressure sensor 102 is located on the side wall of the fixed handle 20 away from the movable handle 30. Specifically, there are multiple pressure sensors 102, which are evenly arranged along the length of the fixed handle 20 to detect the pressure at multiple points on the patient's thumb.

[0030] In this embodiment, the base 10 is provided with a mounting cavity 110, and the microcontroller 101 is located in the mounting cavity 110 to avoid the microcontroller 101 being directly exposed to the outside, thus playing a role in protection and aesthetics.

[0031] In this embodiment, the fixed handle 20 is provided with a battery compartment 120, and the battery compartment 120 is provided with a battery 130 for powering the microcontroller 101. The battery compartment 120 is connected to the mounting cavity 110 through the connecting channel 121. The battery 130 can be a rechargeable battery or a dry cell battery. If a rechargeable battery is used, a charging port needs to be reserved on the fixed handle 20. If a dry cell battery is used, a battery compartment cover needs to be provided to facilitate battery replacement.

[0032] In this embodiment, the base 10 is also provided with a display 130 electrically connected to the microcontroller 101. The display 130 is used to display the pressure value detected by the pressure sensor 102 so that the patient can directly and clearly observe the magnitude of the grip force. In addition, in order to further adapt to the adjustment of the grip force, an adjustment button 190 that can adjust the standard grip force value can be integrated on the microcontroller 101. When the adjustment screw 50 reduces the tension of the spring 80, the vertical of the standard grip force can be adjusted accordingly.

[0033] In this embodiment, a strip groove 140 is provided on the extension arm 40 along its length direction. The end of the strip groove 140 away from the base 10 passes through the end of the extension arm 40. The adjusting screw 50 is located in the strip groove 140 and is longitudinally rotatably connected to the side wall of the base 10 near the strip groove 140 through the bearing 150. The width of the strip groove 140 is the same as the width of the screw sleeve 60. When assembled, the two opposite sides of the screw sleeve 60 slide against the two side walls of the strip groove 140 respectively, so as to ensure that the screw sleeve 60 can move smoothly along the strip groove 140 when the adjusting screw 50 rotates on a fixed axis, thereby reducing shaking.

[0034] In this embodiment, an adjustment cap 160 is longitudinally rotatably provided at one end of the extension arm 40 away from the base 10. The adjustment cap 160 is fixedly connected to the adjustment screw 50 to facilitate adjustment by the patient.

[0035] In addition, a gripping force scale line 170 can be set on the extension arm 40 along its length direction, and a pointer 180 for indicating the scale value can be set on the screw sleeve 60 to facilitate observation of the gripping force corresponding to the length of the spring 80 after adjustment.

[0036] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A structure of a fist exercise device for an internal arteriovenous fistula, characterized by, The utility model provides a kind of portable pressure testing device, including base, and fixed handle and movable handle side by side;The fixed handle is fixedly connected with the base, and the movable handle is laterally provided with extension arm near one end of the base, and the movable handle is hinged with the base by the extension arm, and the rotation direction of the extension arm is coplanar with the fixed handle;Parallel adjusting screw is provided on the extension arm, and screw sleeve is provided on the adjusting screw, and mounting rack is provided on the side of the base away from the fixed handle, and the mounting rack is connected with the screw sleeve by spring;Pressure indicating lamp and pressure trigger assembly triggered when being pressed are provided on the base.

2. The internal arteriovenous fistula grip exerciser structure according to claim 1, characterized in that, The fixed handle is integrally connected with the base.

3. The internal arteriovenous fistula grip exerciser structure according to claim 1, characterized in that, The pressure indicating lamp is located on the side of the base away from the extension arm.

4. The internal arteriovenous fistula grip exerciser structure according to claim 1, characterized in that, The pressure trigger assembly includes a single-chip microcomputer and a pressure sensor electrically connected thereto, and the pressure indicating lamp is electrically connected to the single-chip microcomputer.

5. The internal arteriovenous fistula grip exerciser structure according to claim 4, characterized in that, The pressure sensor is provided with multiple pressure sensors and is uniformly arranged along the length direction of the fixed handle.

6. The internal arteriovenous fistula grip exerciser structure according to claim 4, characterized in that, The base is provided with an installation cavity, and the single-chip microcomputer is arranged in the installation cavity.

7. The internal arteriovenous fistula grip exerciser structure according to claim 6, characterized in that, The fixed handle is provided with a battery compartment, and the battery compartment is provided with a battery for supplying power to the single-chip microcomputer.

8. The internal arteriovenous fistula grip exerciser structure according to claim 4, characterized in that, The base is further provided with a display electrically connected to the single-chip microcomputer, and the display is used to display the pressure value.

9. The AV fistula grip exerciser structure according to claim 1, wherein The extension arm is provided with a strip-shaped groove along the length direction thereof, one end of the strip-shaped groove away from the base penetrates the end of the extension arm, the adjusting screw is arranged in the strip-shaped groove and is rotatably connected to the side wall of the end of the strip-shaped groove near the base by a bearing, the width of the strip-shaped groove is the same as the width of the screw sleeve, and when assembled, the two opposite sides of the screw sleeve are respectively in sliding contact with the two side walls of the strip-shaped groove.

10. The AV fistula grip exerciser structure according to claim 9, wherein The end of the extension arm away from the base is longitudinally rotatably provided with an adjusting cap, and the adjusting cap is fixedly connected with the adjusting screw.

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