Auxiliary fist clenching device

Abstract

The utility model relates to an auxiliary fist clenching device which comprises an inner core seat, an elastic spherical body and a valve mechanism, the inner core seat is composed of an inserting portion and a protruding installation portion fixed at one end of the inserting portion, an inner hole cavity is formed in the protruding installation portion, and a first guide hole and a second guide hole are formed in the protruding installation portion respectively. One ends of the first guide hole and the second guide hole are communicated with the outside, one ends of the first guide hole and the second guide hole are communicated with the inner hole cavity, and a first guide rod slidably penetrates through the first guide hole. The air distribution mechanism works to achieve the effect of inflating and exhausting air in the inner hole cavity, under the cooperation of the first piston and the second piston, the first finger stall and the second finger stall can be driven to gather inwards or unfold outwards, the five-finger unfolding and holding training of a patient can be effectively assisted, the unfolding and holding duration is controllable, and the training efficiency is improved. The practical medical rehabilitation requirements are met, the automation degree is high, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary instruments, in particular to an auxiliary fist clenching device. Background Art

[0002] An autogenous arteriovenous fistula is the main vascular access for hemodialysis patients. After the arteriovenous fistula is established, the vein will undergo an arterialization maturation process to achieve appropriate depth, blood vessel wall thickness, diameter, and blood flow velocity, so as to facilitate regular repeated punctures for hemodialysis. This maturation process takes about four to eight weeks. The failure of AVF maturation may reduce the quality of life and treatment effect of patients, and upper limb functional exercise helps the maturation of the newly established arteriovenous fistula and may reduce the occurrence of internal fistula complications. In order to improve the maturation rate, medical staff provide upper limb movement guidance to patients for simple and effective exercise, specifically, squeezing a ball for fist clenching exercise training.

[0003] With the aging of society and the diversification of diseases, among hemodialysis patients, many patients are unable to perform fist clenching and ball squeezing exercises due to diseases or their own physical fitness reasons. For example, some patients do not have the strength to do so. When performing the ball squeezing and fist clenching training, it takes five seconds to squeeze and then release each time. Patients cannot grasp the time well, resulting in the failure to effectively complete the fist clenching and ball squeezing exercises, which may cause the delay of the maturation of the autogenous arteriovenous internal fistula. Content of the Utility Model

[0004] The purpose of the utility model is to provide an auxiliary fist clenching device, which effectively solves the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions.

[0006] An auxiliary fist clenching device includes an inner core seat, a resilient spherical body and an air distribution mechanism installed on the inner core seat. The inner core seat is composed of an insertion part and a protruding installation part fixed at one end of the insertion part. An inner hole cavity is provided in the protruding installation part. A first guide hole and a second guide hole are respectively provided in the protruding installation part. One ends of the first guide hole and the second guide hole are both communicated with the outside, and the other ends are both communicated with the inner hole cavity. A first guide rod is slidably and penetratively installed in the first guide hole. A first piston adapted to the first guide hole is fixed at the end of the first guide rod located in the first guide hole. An arc-shaped plate is fixed at the end located outside. Four first finger sleeves are spacedly installed on the arc-shaped plate. A second guide rod is slidably and penetratively installed in the second guide hole. A second piston adapted to the second guide hole is installed at the end of the second guide rod located in the second guide hole. A second finger sleeve is installed at the outer end of the second guide rod. The air distribution mechanism is communicated with the inner hole cavity and is used for inflating and exhausting the inner hole cavity.

[0007] It can be seen that by the operation of the air distribution mechanism, the inflation and deflation effects in the inner hole cavity are achieved. With the cooperation of the first piston and then the second piston, the first finger sleeve and the second finger sleeve can be driven to gather inward or expand outward, effectively assisting the patient's five fingers to perform the expansion and clenching training. Moreover, the duration of expansion and clenching is controllable, meeting the actual medical rehabilitation needs. It has a high degree of automation, a simple structure, and is convenient to use.

[0008] Further, the air distribution mechanism includes a base, an air distribution cylinder, a third piston, a connecting arm, an electric push cylinder, and a communication pipe. The electric push cylinder and the air distribution cylinder are both fixedly installed on the base. The third piston is slidably and fittingly installed in the air distribution cylinder. The connecting arm is fixed to the side of the third piston and slidably penetrates and extends to the outside of the air distribution cylinder and is fixedly connected to the end of the telescopic rod of the electric push cylinder. One end of the communication pipe is communicated with the air distribution cylinder, and the other end is connected to the protruding installation part and is communicated with the inner hole cavity.

[0009] Further, an insertion hole is provided inside the elastic spherical body, and the elastic spherical body is detachably sleeved on the insertion part through the insertion hole.

[0010] Further, an annular groove is provided on the outer surface of the insertion part, and an annular protrusion adapted to the annular groove is provided on the inner wall of the insertion hole. When the elastic spherical body is sleeved on the insertion part, the annular protrusion is snap-fitted into the annular groove.

[0011] Further, the second finger sleeve and the four first finger sleeves are all made of elastic woven fabric.

[0012] Further, the bottom of the base has an anti-slip pad, and the anti-slip pad has anti-slip lines.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows.

[0014] 1. Through the operation of the air distribution mechanism of the present utility model, the inflation and deflation effects in the inner hole cavity are achieved. With the cooperation of the first piston and then the second piston, the first finger sleeve and the second finger sleeve can be driven to gather inward or expand outward, effectively assisting the patient's five fingers to perform the expansion and clenching training. Moreover, the duration of expansion and clenching is controllable, meeting the actual medical rehabilitation needs. It has a high degree of automation, a simple structure, and is convenient to use.

[0015] 2. By inserting the insertion part into the insertion hole in the elastic spherical body, the assembly of the inner core seat and the elastic spherical body is realized. In addition, by pulling out the insertion part from the insertion hole, the separation of the inner core seat and the elastic spherical body is realized. At this time, the elastic spherical body can be disassembled separately and can be used as an elastic ball for the patient to pinch for normal fist clenching training, enabling the present device to have two functions and meeting different usage scenarios, with high practicality.

[0016] 3. When the insertion part of the present utility model is inserted into the insertion hole, the annular protruding part is fitted and clamped into the annular groove. By using the combination of the annular protruding part and the annular groove, the firm connection between the elastic spherical body and the insertion part can be ensured, and the elastic spherical body can be prevented from falling off the insertion part randomly during use. Description of the Drawings

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the surface of the inner core seat in the present utility model;

[0019] Figure 3 It is one of the sectional structural schematic diagrams of the inner core seat and the elastic spherical body in the present utility model;

[0020] Figure 4 It is the second sectional structural schematic diagram of the inner core seat and the elastic spherical body in the present utility model;

[0021] Figure 5 It is a detailed structural schematic diagram of the air distribution mechanism in the present utility model.

[0022] In the figure: 1. Inner core seat; 11. Protruding installation part; 12. Insertion part; 121. Annular groove; 2. Elastic spherical body; 21. Insertion hole; 211. Annular protruding part; 3. Inner hole cavity; 31. First guide hole; 32. First guide rod; 33. First piston; 34. Arc plate; 35. First finger sleeve; 36. Second guide hole; 37. Second guide rod; 38. Second piston; 39. Second finger sleeve; 4. Air distribution mechanism; 41. Base; 42. Air distribution cylinder; 43. Third piston; 44. Connecting arm; 45. Electric push cylinder; 46. Connecting pipe. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 - 5, an auxiliary fist clenching device provided by the utility model includes an inner core seat 1, a resilient spherical body 2 and an air distribution mechanism 4 installed on the inner core seat 1. The inner core seat 1 is composed of an insertion part 12 and a protruding installation part 11 fixed at one end of the insertion part 12. The cross section of the protruding installation part 11 is oval, and the cross section of the insertion part 12 is circular. An inner hole cavity 3 is provided in the protruding installation part 11. A first guide hole 31 and a second guide hole 36 are respectively provided in the protruding installation part 11. One ends of the first guide hole 31 and the second guide hole 36 are both communicated with the outside, and the other ends are both communicated with the inner hole cavity 3. A first guide rod 32 is slidably installed through the first guide hole 31. A first piston 33 adapted to the first guide hole 31 is fixed at the end of the first guide rod 32 located in the first guide hole 31. An arc-shaped plate 34 is fixed at the end located outside. The shape of the arc-shaped plate 34 is adapted to the position distribution of the four fingers except the thumb. Four first finger sleeves 35 are installed at intervals on the arc-shaped plate 34. A second guide rod 37 is slidably installed through the second guide hole 36. A second piston 38 adapted to the second guide hole 36 is installed at the end of the second guide rod 37 located in the second guide hole 36. A second finger sleeve 39 is installed at the outer end of the second guide rod 37. The air distribution mechanism 4 is communicated with the inner hole cavity 3 and is used for inflating and exhausting the inner hole cavity 3.

[0025] When using this device to assist the patient in fist clenching training, first let the patient pass the thumb through the second finger sleeve 39, pass the other four fingers through the first finger sleeves 35 respectively, and ensure that the whole palm is in a state of holding the resilient spherical body 2. Subsequently, the air distribution mechanism 4 works to inflate the inner hole cavity 3. The pressure in the inner hole cavity 3 increases, and respectively pushes the first piston 33 and the second piston 38 to slide towards the outer edge of the protruding installation part 11. The first piston 33 drives the arc-shaped plate 34 and the first finger sleeves 35 to extend outwards under the connection action of the first guide rod 32. The second piston 38 drives the second finger sleeve 39 to extend outwards under the fixed connection action of the second guide rod 37, thereby driving the patient's five fingers to expand outwards, effectively assisting the patient's fingers to expand. By the air distribution mechanism 4 working to extract the gas in the inner hole cavity 3, the pressure in the inner hole cavity 3 decreases, driving the second piston 38 and the first piston 33 to slide back to their original positions, respectively driving the first finger sleeves 35 and the second finger sleeve 39 to gather towards the protruding installation part 11, thereby driving the patient's five fingers to gather to achieve the clenching action. In addition, by controlling the interval time of the air distribution mechanism 4 working, it can ensure that the patient's five fingers maintain a specific time when clenching and expanding, meeting the actual use needs.

[0026] The utility model realizes the inflation and exhaust effects of the inner hole cavity 3 through the work of the air distribution mechanism 4. With the cooperation of the first piston 33 and the second piston 38, it can drive the first finger sleeves 35 and the second finger sleeve 39 to gather inwards or expand outwards, effectively assisting the patient's five fingers to carry out expansion and clenching training, and the expansion and clenching time is controllable, meeting the actual medical rehabilitation needs, with high automation degree, simple structure and convenient use.

[0027] Specifically, the valve train 4 includes a base 41, a valve cylinder 42, a third piston 43, a connecting arm 44, an electric push cylinder 45 and a connecting pipe 46. The electric push cylinder 45 and the valve cylinder 42 are both fixedly installed on the base 41. The third piston 43 is slidably and fittingly installed in the valve cylinder 42. The connecting arm 44 is fixed to the side of the third piston 43, slidably penetrates and extends to the outside of the valve cylinder 42, and is fixedly connected to the end of the telescopic rod of the electric push cylinder 45. One end of the connecting pipe 46 is connected to communicate with the valve cylinder 42, and the other end is connected to the protruding mounting portion 11 and communicates with the inner hole cavity 3. By the electric push cylinder 45 extending to work, its telescopic rod, under the connection action of the connecting arm 44, pushes the third piston 43 to slide in the valve cylinder 42 toward the connecting pipe 46 side, and then the gas in the valve cylinder 42 can be pressed into the inner hole cavity 3 through the connecting pipe 46, realizing the inflation effect on the inner hole cavity 3. By the electric push cylinder 45 retracting to work, under the connection action of the connecting arm 44, the third piston 43 is driven to slide away from the connecting pipe 46 side, and the gas in the inner hole cavity 3 can be drawn back into the valve cylinder 42 through the connecting pipe 46, realizing the air extraction effect on the inner hole cavity 3.

[0028] Specifically, an insertion hole 21 is provided in the elastic spherical body 2. The elastic spherical body 2 is detachably sleeved on the insertion portion 12 through the insertion hole 21. Since the elastic spherical body 2 has elasticity, the insertion portion 12 can be inserted into the insertion hole 21 in the elastic spherical body 2, realizing the assembly of the inner core seat 1 and the elastic spherical body 2. In addition, pulling the insertion portion 12 out of the insertion hole 21 realizes the separation of the inner core seat 1 and the elastic spherical body 2. At this time, the elastic spherical body 2 can be disassembled separately and used as a stress ball for the patient to pinch for normal fist clenching training, making the device have two functions, meeting different usage scenarios, and having high practicability.

[0029] Specifically, an annular groove 121 is provided on the outer surface of the insertion portion 12, and an annular protrusion 211 adapted to the annular groove 121 is provided on the inner wall of the insertion hole 21. When the elastic spherical body 2 is sleeved on the insertion portion 12, the annular protrusion 211 is fitted and snapped into the annular groove 121. When the insertion portion 12 is inserted into the insertion hole 21, the annular protrusion 211 is fitted and snapped into the annular groove 121. By the combination of the annular protrusion 211 and the annular groove 121, the firm connection between the elastic spherical body 2 and the insertion portion 12 can be ensured, and the elastic spherical body 2 can be prevented from falling off the insertion portion 12 randomly during use.

[0030] Specifically, the second finger sleeve 39 and the four first finger sleeves 35 are both made of elastic knitted fabrics, specifically elastic bands, which have an elastic effect and can adapt to fingers of different thicknesses, and thus are applicable to different patients, with high versatility.

[0031] Specifically, the bottom of the base 41 is provided with an anti-slip pad which has anti-slip patterns. When in use, the base 41 is placed on the tabletop of the bedside table. By providing an anti-slip pad with anti-slip patterns at the bottom of the base 41, the friction between the base 41 and the placement surface can be increased, avoiding slipping and displacement, and improving the stability during placement.

[0032] The above is a detailed description of the present utility model in combination with specific embodiments. It cannot be determined that the specific embodiments of the present invention are only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present invention, several equivalent substitutions or obvious modifications are made, and the performance or use is the same, and all should be regarded as belonging to the patent protection scope determined by the claims submitted by the present utility model.

Claims

1. A fist-making assisting device, characterized in that: It comprises an inner core seat (1), an elastic spherical body (2) and a gas distribution mechanism (4) mounted on the inner core seat (1); The inner core seat (1) is composed of an inserting portion (12) and a protruding mounting portion (11) fixed to one end of the inserting portion (12); An inner cavity (3) is provided in the protruding mounting portion (11), and a first guide hole (31) and a second guide hole (36) are respectively provided in the protruding mounting portion (11), one end of the first guide hole (31) and the second guide hole (36) are both in communication with the outside, and both ends are in communication with the inner cavity (3); A first guide rod (32) is slidably installed in the first guide hole (31); a first piston (33) adapted to the first guide hole (31) is fixed to the end of the first guide rod (32) located in the first guide hole (31); an arc plate (34) is fixed to the end located outside; four first finger cots (35) are installed on the arc plate (34) at intervals; A second guide rod (37) is slidably installed in the second guide hole (36); a second piston (38) adapted to the second guide hole (36) is installed on the end of the second guide rod (37) located in the second guide hole (36); and a second finger sleeve (39) is installed on the outer end of the second guide rod (37); The gas distribution mechanism (4) is in communication with the inner cavity (3) and is used for inflating and deflating the inner cavity (3).

2. The fist-making assisting device according to claim 1, characterized in that: The gas distribution mechanism (4) comprises a base (41), a gas distribution cylinder (42), a third piston (43), a connecting arm (44), an electric push cylinder (45) and a connecting pipe (46); The electric push cylinder (45) and the gas distribution cylinder (42) are both fixedly mounted on the base (41), and the third piston (43) is slidably mounted in the gas distribution cylinder (42); The connecting arm (44) is fixed to the side of the third piston (43), and is slidably extended through the outside of the gas distribution cylinder (42), and is fixedly connected to the end of the telescopic rod of the electric push cylinder (45); One end of the connecting pipe (46) is connected to the gas distribution cylinder (42), and the other end is connected to the protruding mounting portion (11) and communicates with the inner cavity (3).

3. The fist-making assisting device according to claim 1, characterized in that: An insertion hole (21) is provided in the elastic spherical body (2), and the elastic spherical body (2) is detachably mounted on the insertion portion (12) through the insertion hole (21).

4. The fist-making assisting device according to claim 3, characterized in that: An annular groove (121) is provided on the outer surface of the insertion portion (12), and an annular protrusion (211) adapted to the annular groove (121) is provided on the inner wall of the insertion hole (21); When the elastic spherical body (2) is sleeved onto the insertion portion (12), the annular protrusion (211) is matched and snapped into the annular groove (121).

5. The fist-making assisting device according to claim 1, characterized in that: The second finger sleeve (39) and the four first finger sleeves (35) are all made of elastic woven fabric.

6. The fist-making assisting device according to claim 2, characterized in that: The bottom of the base (41) is provided with an anti-skid pad, and the anti-skid pad is provided with anti-skid patterns.

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