Swimming knee prosthesis and swimming prosthesis

Abstract

The application provides a swimming knee prosthesis and a swimming prosthesis, and relates to the technical field of knee prostheses. The swimming knee prosthesis comprises a prosthesis upper body, a prosthesis lower body, an outer side connecting rod and a push piston piece; one end of the outer side connecting rod is fixedly arranged on the prosthesis upper body, and the other end is pivotally connected with the prosthesis lower body; two push piston pieces are pivotally connected on the prosthesis upper body and the prosthesis lower body; one end of the push piston piece is pivotally connected with the prosthesis upper body, and the other end is pivotally connected with the prosthesis lower body. The swimming prosthesis comprises the swimming knee prosthesis. The technical effect that the disabled patient can be assisted to swim is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of knee prosthesis, in particular to a knee prosthesis for swimming and a swimming prosthesis. BACKGROUND

[0002] Millions of individuals worldwide rely on prosthetics and / or orthotic devices to compensate for disabilities. Orthotic devices include external devices for support, alignment, prevention, protection, correction of deformities, or functional improvement of movable parts of the body. Prosthetic devices include devices that serve as artificial substitutes for missing body parts, such as arms or legs.

[0003] As the average life expectancy of individuals increases and the prevalence of debilitating diseases such as diabetes increases, the number of disabled and amputated individuals is growing every year. Therefore, the demand for prosthetics and orthotic devices is also increasing. Conventional orthoses are often used to support joints such as an individual's ankle or knee.

[0004] However, the existing prostheses cannot meet the sports needs of patients wearing prostheses, for example, for swimming, patients below the knee lack of angle change between the flippers and the thighs, so that the user cannot swim smoothly, and the wearing feeling is poor. SUMMARY

[0005] The purpose of the present application is to provide a knee prosthesis for swimming and a swimming prosthesis to alleviate the technical problem that the existing prostheses cannot meet the swimming needs of disabled patients.

[0006] In a first aspect, the embodiments of the present application provide a knee prosthesis for swimming, comprising a prosthesis upper body, a prosthesis lower body, an outer side connecting rod and a push piston piece;

[0007] One end of the outer side connecting rod is fixedly arranged on the prosthesis upper body, and the other end is pivotally connected with the prosthesis lower body.

[0008] Two push piston pieces are pivotally connected on the prosthesis upper body and the prosthesis lower body, one end of the push piston piece is pivotally connected with the prosthesis upper body, and the other end is pivotally connected with the prosthesis lower body.

[0009] In combination with the first aspect, the embodiments of the present application provide a possible implementation manner of the first aspect, wherein the push piston piece comprises a piston cylinder, a piston rod and a piston sleeve.

[0010] The piston sleeve is fixedly arranged in the piston cylinder, the piston rod is slidably inserted in the piston sleeve, the piston cylinder is pivotally connected with the prosthesis upper body, and the piston rod is pivotally connected with the prosthesis lower body.

[0011] With reference to the first aspect, in a possible implementation of the first aspect, the piston-cylinder body comprises a cylinder body and a cylinder cover, the cylinder body and the cylinder cover are connected, and the piston rod is pivotally connected to the lower body of the artificial limb through the cylinder cover.

[0012] With reference to the first aspect, in a possible implementation of the first aspect, the piston rod divides the space in the piston sleeve into an upper cavity and a lower cavity.

[0013] The top of the cylinder body is provided with a damping adjustment channel, the piston sleeve and the piston-cylinder body have an annular flow channel, the piston sleeve and the cylinder cover have a flow channel, the upper cavity is in communication with the annular flow channel through the damping adjustment channel, and the lower cavity is in communication with the annular flow channel through the flow channel.

[0014] With reference to the first aspect, in a possible implementation of the first aspect, an adjusting valve is arranged in the damping adjustment channel, the adjusting valve is provided with an adjusting flow channel, and the adjusting flow channel can communicate the damping adjustment channel and the upper cavity.

[0015] With reference to the first aspect, in a possible implementation of the first aspect, the cylinder body is provided with a first through hole for communication with the damping adjustment channel.

[0016] With reference to the first aspect, in a possible implementation of the first aspect, the cylinder body is provided with a second through hole for communication with the annular flow channel.

[0017] With reference to the first aspect, in a possible implementation of the first aspect, the outer wall of the piston sleeve is provided with a support ring, and the support ring is provided with a plurality of flow holes.

[0018] With reference to the first aspect, in a possible implementation of the first aspect, the piston rod is provided with an axial connecting channel along the axial direction of the piston rod, and the upper cavity is connected to the lower cavity through the axial connecting channel.

[0019] The axial connecting channel is provided with an adjusting ball, so that the liquid in the upper cavity cannot flow to the lower cavity through the axial connecting channel when the upper cavity is under pressure.

[0020] Secondly, the embodiment of the application provides a swimming artificial limb, which comprises the swimming knee joint artificial limb.

[0021] Beneficial effects:

[0022] The embodiment of the present application provides a swimming knee prosthesis, which comprises a prosthesis upper body, a prosthesis lower body, an outer side connecting rod and a push piston piece; one end of the outer side connecting rod is fixedly arranged on the prosthesis upper body, and the other end is pivotally connected with the prosthesis lower body; two push piston pieces are pivotally connected on the prosthesis upper body and the prosthesis lower body, one end of the push piston piece is pivotally connected with the prosthesis upper body, and the other end is pivotally connected with the prosthesis lower body.

[0023] Specifically, in use, a user installs the prosthesis upper body of the swimming knee prosthesis on a thigh, installs a swimming fin on the prosthesis lower body, and then swings the thigh when the user dives to swim, at this time, the swimming fin is subjected to water resistance, so that the swimming fin drives the two push piston pieces, so that one push piston piece is compressed and one push piston piece is elongated, so that the angle adjustment of the swimming fin relative to the prosthesis lower body is realized, and the patient can swim better.

[0024] The embodiment of the present application provides a swimming prosthesis, which comprises the swimming knee prosthesis. The swimming prosthesis has the advantages of the prior art, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 A schematic view of the swimming knee prosthesis provided by the embodiment of the present application is provided.

[0027] Figure 2 A cross-sectional view of the swimming fin of the swimming knee prosthesis provided by the embodiment of the present application when the swimming fin is in water during use is provided.

[0028] Figure 3 A cross-sectional view of the cylinder in the swimming knee prosthesis provided by the embodiment of the present application is provided.

[0029] Figure 4 A schematic view of the piston sleeve in the swimming knee prosthesis provided by the embodiment of the present application is provided.

[0030] Figure 5 A schematic view of the piston rod in the swimming knee prosthesis provided by the embodiment of the present application is provided.

[0031] Figure 6 A cross-sectional view of the piston rod in the swimming knee prosthesis provided by the embodiment of the present application is provided.

[0032] Figure 7A schematic view of the adjusting valve in the knee prosthesis for swimming provided by the embodiment of the present application is shown in the figure.

[0033] Figure 8 An internal schematic view of the adjusting valve in the knee prosthesis for swimming provided by the embodiment of the present application is shown in the figure.

[0034] Figure 9 A sectional view of the knee prosthesis for swimming provided by the embodiment of the present application when connected with the swimming fin is shown in the figure.

[0035] Icon:

[0036] 100 - upper body of the prosthesis

[0037] 200 - lower body of the prosthesis

[0038] 300 - lateral connecting rod

[0039] 400 - push piston; 410 - piston cylinder; 411 - cylinder body; 412 - cylinder cover; 413 - first through hole; 414 - second through hole; 420 - piston rod; 421 - axial connecting channel; 422 - adjusting ball; 430 - piston cylinder sleeve; 431 - upper cavity; 432 - lower cavity; 433 - support ring; 434 - overflow hole; 440 - damping adjusting channel; 450 - annular space flow channel; 460 - overflow channel

[0040] 500 - adjusting valve; 510 - adjusting flow channel DETAILED DESCRIPTION

[0041] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and 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 cannot be understood as a limitation of the present application.

[0043] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0044] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0045] The present application will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0046] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 , the embodiment provides a swimming knee prosthesis, which comprises a prosthesis upper body 100, a prosthesis lower body 200, an outer side connecting rod 300 and a push piston piece 400; one end of the outer side connecting rod 300 is fixedly arranged on the prosthesis upper body 100, and the other end is pivotally connected with the prosthesis lower body 200; two push piston pieces 400 are pivotally connected on the prosthesis upper body 100 and the prosthesis lower body 200, one end of the push piston piece 400 is pivotally connected with the prosthesis upper body 100, and the other end is pivotally connected with the prosthesis lower body 200.

[0047] Specifically, in use, the user installs the prosthesis upper body 100 of the swimming knee prosthesis on the thigh, installs the swimming fin on the prosthesis lower body 200, and then swings the thigh when the user dives for swimming. At this time, the swimming fin will be subjected to the resistance of water, so that the swimming fin will drive the two push piston pieces 400, so that one push piston piece 400 is compressed and one push piston piece 400 is elongated, thereby realizing the angle adjustment of the swimming fin relative to the prosthesis lower body 200, so that the patient can swim better.

[0048] Referring to Figures 1-9As shown, in the optional solution of the embodiment, the toggle piston member 400 comprises a piston cylinder 410, a piston rod 420 and a piston sleeve 430; the piston sleeve 430 is fixedly arranged in the piston cylinder 410, the piston rod 420 is slidably inserted in the piston sleeve 430, the piston cylinder 410 is pivotally connected with the upper body 100 of the prosthesis, and the piston rod 420 is pivotally connected with the lower body 200 of the prosthesis.

[0049] The piston cylinder 410 comprises a cylinder body 411 and a cylinder cover 412, the cylinder body 411 and the cylinder cover 412 are connected, and the piston rod 420 passes through the cylinder cover 412 and is pivotally connected with the lower body 200 of the prosthesis.

[0050] Referring to Figures 1-9 As shown, in the optional solution of the embodiment, the piston rod 420 divides the space in the piston sleeve 430 into an upper cavity 431 and a lower cavity 432; the top of the cylinder body 411 is provided with a damping adjustment channel 440, the piston sleeve 430 and the piston cylinder 410 have an annular flow channel 450 therebetween, and the piston sleeve 430 and the cylinder cover 412 have a flow-through channel 460 therebetween; the upper cavity 431 is in communication with the annular flow channel 450 through the damping adjustment channel 440, and the lower cavity 432 is in communication with the annular flow channel 450 through the flow-through channel 460.

[0051] Referring to Figures 1-9 As shown, in the optional solution of the embodiment, an adjusting valve 500 is inserted in the damping adjustment channel 440, and the adjusting valve 500 is provided with an adjusting flow channel 510 for connecting the damping adjustment channel 440 and the upper cavity 431.

[0052] The cylinder body 411 is provided with a first through hole 413 for communicating with the damping adjustment channel 440.

[0053] The cylinder body 411 is provided with a second through hole 414 for communicating with the annular flow channel 450.

[0054] Referring to Figures 1-9 As shown, in the optional solution of the embodiment, the outer wall of the piston sleeve 430 is provided with a support ring 433, and the support ring 433 is provided with a plurality of flow-through holes 434.

[0055] Referring to Figures 1-9 As shown, in the optional solution of the embodiment, the piston rod 420 is provided with an axial connection channel 421 along the axial direction thereof, the upper cavity 431 is connected with the lower cavity 432 through the axial connection channel 421, and the axial connection channel 421 is provided with an adjusting ball 422 to prevent the liquid in the upper cavity 431 from flowing to the lower cavity 432 through the axial connection channel 421 when the upper cavity 431 is under pressure.

[0056] Wherein, a support rod is arranged at the end of the axial connection channel 421 opening into the upper cavity 431, the support rod can support the adjusting ball 422, and the hydraulic oil can pass through the adjusting ball 422 and the support rod, when the hydraulic pressure in the upper cavity 431 rises, the hydraulic oil can press the adjusting ball 422 at the end of the axial connection channel 421 towards the lower cavity 432, so that the hydraulic oil cannot pass through.

[0057] Referring to Figures 1-9As shown, in particular, in use, the user wears the knee prosthesis for swimming provided by the embodiment, and then when the user swims, the user is in the posture of backstroke, freestyle, etc., two dialing piston pieces 400 are in the vertical direction, one dialing piston piece 400 is below, and one dialing piston piece 400 is above, the swimming fin is fixedly arranged on the lower body 200 of the prosthesis, and when the user exerts force, the swimming fin will be subjected to the resistance of water, and the swimming fin can drive the corresponding movement of the upper and lower two dialing piston pieces 400, specifically, when the swimming fin moves downward, the dialing piston piece 400 above will contract, and the dialing piston piece 400 below will elongate, that is, the hydraulic flow in the dialing piston piece 400 above is specifically that the hydraulic oil pressure in the upper cavity 431 is increased, the hydraulic oil in the upper cavity 431 flows into the adjusting flow channel 510 in the adjusting valve 500 through the first through hole 413, then flows into the damping adjusting channel 440 along the adjusting flow channel 510, then flows to the second through hole 414 along the damping adjusting channel 440, then flows into the annular flow channel 450 along the second through hole 414, then flows into the overflow channel 460 along the annular flow channel 450 and the overflow hole 434 on the support ring 433, and then flows into the lower cavity 432 from the overflow channel 460, completing the transfer of the hydraulic oil, wherein the high-pressure hydraulic oil in the upper cavity 431 can press the adjusting ball 422 in the axial connection channel 421 on the piston rod 420, so that the adjusting ball 422 blocks the axial connection channel 421. The hydraulic flow in the dialing piston piece 400 below is specifically that the hydraulic oil pressure in the lower cavity 432 is increased, the hydraulic oil in the lower cavity 432 flows into the axial connection channel 421 of the piston rod 420, and then the hydraulic oil in the axial connection channel 421 can push open the adjusting ball 422 to flow into the upper cavity 431, and at the same time, the hydraulic oil in the lower cavity 432 flows to the overflow channel 460, flows into the annular flow channel 450 through the overflow channel 460, then flows to the second through hole 414 on the cylinder body 411 along the annular flow channel 450 and the overflow hole 434 on the support ring 433, then the hydraulic oil flows into the damping adjusting channel 440 through the second through hole, then flows into the adjusting flow channel 510 of the adjusting valve 500 along the damping adjusting channel 440, then flows into the first through hole 413 on the cylinder body 411 along the adjusting flow channel 510, and then flows into the upper cavity 431 along the first through hole 413. Through such a setting, the swinging of the swimming fin relative to the lower body 200 of the prosthesis can be realized, so that the user can experience the experience of having a complete limb when swimming.

[0058] It should be pointed out that the adjusting valve 500 is arranged in the damping adjusting channel 440, the user can adjust the size of the damping by rotating the adjusting valve 500, thereby adjusting the overlapping area of the adjusting flow channel 510 and the first through hole 413 on the adjusting valve 500, adjusting the size of the compression force of the dialing piston piece 400, and adapting to the needs of different users.

[0059] It should be noted that when a normal person swims, the thigh hip joint exerts force to swing the knee joint and the ankle joint, change the included angle between the swimming fin and the water, so that the swimming fin can push the water backward, so that the user can swim forward. However, when the disabled person wears the normal swimming fin, because the swimming fin is fixed on the prosthesis, the prosthesis is directly fixed on the thigh, the whole swimming fin is in a straight line with the thigh, and the whole swimming fin cannot swing relative to the thigh (without knee joint and ankle joint), so when the thigh of the disabled person exerts force, the whole swimming fin only moves up and down, and the swimming fin cannot push the water backward without the adjustment of the ankle and the knee.

[0060] It should be noted that the swimming knee joint prosthesis provided in the embodiment can replace the missing knee and lower limb of the user, so that when the user's thigh hip joint exerts force to splash water during swimming, the swimming fin will contact the water surface, and as the user's thigh moves underwater, the swimming fin will be subjected to water resistance. At this time, the swimming fin can drive a driving piston piece 400 to contract and a driving piston piece 400 to stretch, so that the swimming fin and the lower body swing relative to the upper body in the pitch angle, thereby changing the included angle between the swimming fin and the water, so that the swimming fin can push the water backward, so that the user can swim normally.

[0061] The embodiment provides a swimming prosthesis, which comprises the swimming knee joint prosthesis.

[0062] Compared with the prior art, the swimming prosthesis provided in the embodiment has the advantages of the swimming knee joint prosthesis described above, which will not be repeated here.

[0063] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A knee joint prosthesis for swimming, characterized in that, include: The upper body of the prosthesis (100), the lower body of the prosthesis (200), the outer connecting rod (300), and the actuating piston (400); One end of the outer connecting rod (300) is fixedly mounted on the upper body (100) of the prosthesis, and the other end is pivotally connected to the lower body (200) of the prosthesis; Two actuating pistons (400) are pivotally connected to the upper body (100) and the lower body (200) of the prosthesis. One end of the actuating piston (400) is pivotally connected to the upper body (100) of the prosthesis, and the other end is pivotally connected to the lower body (200) of the prosthesis. The actuating piston component (400) includes a piston cylinder body (410), a piston rod (420), and a piston cylinder sleeve (430); the piston cylinder sleeve (430) is fixedly disposed inside the piston cylinder body (410), the piston rod (420) is slidably inserted into the piston cylinder sleeve (430), the piston cylinder body (410) is pivotally connected to the upper body of the prosthesis (100), and the piston rod (420) is pivotally connected to the lower body of the prosthesis (200); The piston cylinder (410) includes a cylinder body (411) and a cylinder head (412), the cylinder body (411) and the cylinder head (412) are connected, and the piston rod (420) passes through the cylinder head (412) and is pivotally connected to the prosthetic lower body (200); The piston rod (420) divides the space inside the piston cylinder liner (430) into an upper cavity (431) and a lower cavity (432); a damping adjustment channel (440) is provided on the top of the cylinder body (411); an annular flow channel (450) is provided between the piston cylinder liner (430) and the piston cylinder body (410); a flow passage (460) is provided between the piston cylinder liner (430) and the cylinder head (412); the upper cavity (431) is connected to the annular flow channel (450) through the damping adjustment channel (440); and the lower cavity (432) is connected to the annular flow channel (450) through the flow passage (460). An axial connection channel (421) is provided on the piston rod (420) along its axial direction. The upper cavity (431) is connected to the lower cavity (432) through the axial connection channel (421). An adjusting ball (422) is provided in the axial connection channel (421) so that when the upper cavity (431) is pressurized, the liquid inside it cannot flow to the lower cavity (432) through the axial connection channel (421).

2. The swimming knee prosthesis according to claim 1, characterized in that, An adjustment valve (500) is inserted into the damping adjustment channel (440), and an adjustment flow channel (510) is opened on the adjustment valve (500). The adjustment flow channel (510) can connect the damping adjustment channel (440) and the upper cavity (431).

3. The swimming knee prosthesis according to claim 1, characterized in that, The cylinder body (411) has a first through hole (413) for communicating with the damping adjustment channel (440).

4. The swimming knee prosthesis according to claim 3, characterized in that, The cylinder body (411) is provided with a second through hole (414) for communicating with the annular flow channel (450).

5. The swimming knee prosthesis according to claim 1, characterized in that, The outer wall of the piston cylinder liner (430) is provided with a support ring (433), and the support ring (433) has multiple flow holes (434).

6. A swimming prosthesis, characterized in that, Including the swimming knee prosthesis as described in any one of claims 1-5.

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