CN211271483U

CN211271483U - Hip joint assistive device structure

Info

Publication number: CN211271483U
Application number: CN201921857801.4U
Authority: CN
Inventors: 赖志佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-08-18
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a hip joint assistive device structure, which comprises an upper supporting piece, a lower supporting piece and a rotary limiting mechanism. The rotary limiting mechanism is connected with the upper supporting piece and the lower supporting piece and comprises a first rotary disc, a second rotary disc, a limiting protrusion and a switch, the first rotary disc comprises a first track, the second rotary disc is arranged on the first rotary disc in a stacked mode and comprises a second track, and the second rotary disc rotates relative to the first rotary disc so that all or part of the second track corresponds to the first track. The limit protrusion is limited by the first track and the second track, and the switch is selectively coupled with the first rotating disc and the second rotating disc. When the switch is at the first position, the switch is coupled with the first rotating disc and the second rotating disc to prevent the first rotating disc and the second rotating disc from rotating, and when the switch is at the second position, the second rotating disc and the first rotating disc are allowed to rotate relatively. Thereby increasing convenience of use.

Description

Hip joint assistive device structure

Technical Field

The utility model relates to an assistive device structure, in particular to a hip joint assistive device structure for hip joints.

Background

Clinically, when the hip joint is dislocated or semi-dislocated, the hip joint needs to be fixed by a hip joint assistive device (or called a hip joint abduction support). The hip joint assistive device generally comprises an upper support, a lower support and a rotation limiting mechanism, wherein the rotation limiting mechanism is connected between the upper support and the lower support, so that the upper support and the lower support can rotate in a limiting way, and the angle of the limiting rotation can be adjusted according to the requirements of users.

However, when the angle of the limiting rotation is adjusted, the screw in the rotation limiting mechanism needs to be loosened by the screwdriver, and then the angle is adjusted, which is very inconvenient. In view of this, how to improve the structural configuration of the rotation limiting mechanism of the hip joint assistive device so as to make it have the advantage of convenient use is an objective of the related practitioners.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hip joint assistive device structure, which can increase the use convenience through the structural configuration of a rotary limiting mechanism.

According to an embodiment of the present invention, a hip joint assistive device structure is provided, which includes an upper supporting member, a lower supporting member, and a rotation limiting mechanism. The rotary limiting mechanism is connected between the upper supporting piece and the lower supporting piece and comprises a first rotary disc, a second rotary disc, a limiting protrusion and a switch, the first rotary disc comprises a first track, the second rotary disc is rotatably overlapped on the first rotary disc and comprises a second track, and the second rotary disc rotates relative to the first rotary disc so that all or part of the second track corresponds to the first track. The limit protrusions can protrude into the first track and the second track to be limited by the first track and the second track, and the switch is selectively coupled with the first turntable and the second turntable. The switch is switched between a first position and a second position, and when the switch is positioned at the first position, the switch is coupled with the first rotating disc and the second rotating disc so as to prevent the first rotating disc and the second rotating disc from rotating, and when the switch is positioned at the second position, the second rotating disc and the first rotating disc are allowed to rotate relatively.

According to the hip joint placement assistive device structure, the first rotating disc may further comprise a plurality of first occlusion teeth, the second rotating disc may further comprise a plurality of second occlusion teeth, and the switch may comprise a blocking piece, wherein when the switch is located at the first position, the blocking piece is coupled to at least one of the first occlusion teeth and at least one of the second occlusion teeth; when the switch is in the second position, the blocking piece is allowed to be separated from the at least one first meshing tooth and the at least one second meshing tooth.

According to the hip joint assistive device structure, the switch may further include a rotating rod, the rotating rod may include a pushing surface, and when the switch is located at the first position, the pushing surface of the rotating rod pushes the blocking block; when the switch is located at the second position, the pushing face is separated from the blocking block.

According to the hip joint assistive device structure, the rotation limiting mechanism may further include a lower cover and an upper cover, the lower cover is connected to the lower support member, the upper cover is connected to the upper support member, the upper cover corresponds to the lower cover to form an accommodating space, wherein the first rotating disc and the second rotating disc are accommodated in the accommodating space, and the limiting protrusion is disposed on the lower cover.

According to the hip joint assistive device structure, the first rotating disc may further include a first lug, the second rotating disc may further include a second lug, and the first lug and the second lug are exposed out of the accommodating space.

According to the hip joint assistive device structure, the rotation limiting mechanism may further include an angle indicator disposed on the upper cover, the angle indicator including a plurality of first scales and a plurality of second scales, the first lug being rotated to correspond to one of the first scales, and the second lug being rotated to correspond to one of the second scales.

According to the aforementioned hip joint assistive device structure, the switch may further comprise a knob connected to the rotating rod and exposed from the upper cover.

According to the hip joint assistive device structure, the lower cover may include an engaging portion, the lower support may include a locking portion corresponding to the engaging portion, the lower support rotates around a first center line relative to the lower cover, the lower cover rotates around a second center line relative to the upper support, and the first center line is perpendicular to the second center line.

According to the hip joint assistive device structure, the rotation limiting mechanism may further include a screw member, the screw member locks the engaging portion to the engaging portion, and the engaging portion are allowed to rotate relative to each other when the screw member is unscrewed.

According to the hip joint assistive device structure, the rotation limiting mechanism may further include an adaptor, the adaptor includes a first adaptor and a second adaptor, and the second adaptor and the first adaptor are spaced apart from each other; the lower cover comprises an engaging part corresponding to the first transfer part; the lower support piece comprises a clamping part which corresponds to the second switching part; the lower support piece rotates around a third central line relative to the adapter piece, the lower cover rotates around a fourth central line relative to the adapter piece, the lower cover rotates around a second central line relative to the upper support piece, the third central line is parallel to the fourth central line, and the third central line and the fourth central line are perpendicular to the second central line.

In summary, the second rotating disc and the first rotating disc can be restricted or allowed to rotate relatively through the switch, so that the overlapped part of the first track and the second track can be adjusted, the rotating angle of the lower support relative to the upper support can be adjusted more conveniently, and the use convenience of the hip joint assistant tool is improved.

Drawings

In order to make the aforementioned and other objects, features, advantages and embodiments of the invention more comprehensible, the accompanying drawings illustrate:

fig. 1 is a front view schematically illustrating a hip joint prosthesis according to an embodiment of the present invention;

FIG. 2 is a perspective exploded view of the hip prosthesis structure of FIG. 1;

FIG. 3 shows another exploded perspective view of the hip prosthesis structure shown in FIG. 1;

FIG. 4A shows a cross-sectional view of the hip prosthesis structure of FIG. 1 along section line 4-4;

FIG. 4B shows another cross-sectional view of the hip prosthesis structure of FIG. 1 along section line 4-4; and

fig. 5 is a perspective view of a hip joint prosthesis according to another embodiment of the present invention.

[ description of main symbols ]

10: hip joint aid structure 350: upper cover

100: the upper support piece 360: lower cover

200: the lower support 361: engaging part

210: engaging portion 370: angle indicator

300: rotation limiting mechanism 371: first scale

310: first turntable 372: second scale

311: the first track 380: screw member

312: first lug 20: hip joint assistive device structure

313: first engaging tooth 200 a: lower support

320: second dial 210 a: engaging part

321: second rail 300 a: rotary limiting mechanism

322: second lug 360 a: lower cover

323: second engaging tooth 361 a: engaging part

330: limiting protrusion 390 a: adapter

340: the switch 391 a: first transfer part

341: the stopper 392 a: second switching part

3411: recess I1: first center line

3412: inclined surface I2: second center line

342: screw I3: third center line

3421: pushing surface I4: the fourth central line

343: rotary knob

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. For the purpose of clarity, numerous implementation details are set forth in the following description. However, the reader should understand that these practical details should not be used to limit the present invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, for the sake of simplicity, some conventional structures and components are shown in the drawings in a simplified schematic manner; and duplicate components will likely be referred to using the same reference numbers or similar reference numbers.

In addition, when an element (or a mechanism or a module, etc.) "is" connected, "disposed" or "coupled" to another element, it can mean that the element is directly connected, directly disposed or directly coupled to the other element, or that the element is indirectly connected, indirectly disposed or indirectly coupled to the other element, that is, there are other elements between the element and the other element. When an element is explicitly connected, "directly disposed" or "directly coupled" to another element, it is intended that no other element is interposed between the element and the other element. The terms first, second, third, etc. are used only to describe various elements or components, but not to limit the elements/components, and thus the first element/component may be referred to as the second element/component instead. And the combination of component/mechanism/module herein is not a commonly known, conventional or custom combination in the art, and can not be readily determined by one skilled in the art whether the component/mechanism/module itself is well known.

Referring to fig. 1 to 4B, fig. 1 is a schematic front view of a hip joint assistant device structure 10 according to an embodiment of the present invention, fig. 2 is a schematic perspective exploded view of the hip joint assistant device structure 10 shown in fig. 1, fig. 3 is a schematic perspective exploded view of the hip joint assistant device structure 10 shown in fig. 1, fig. 4A is a schematic cross-sectional view of the hip joint assistant device structure 10 shown in fig. 1 along a section line 4-4, and fig. 4B is a schematic cross-sectional view of the hip joint assistant device structure 10 shown in fig. 1 along the section line 4-4. The hip joint assistive device structure 10 includes an upper support 100, a lower support 200, and a rotation limiting mechanism 300.

The rotation limiting mechanism 300 is connected between the upper support 100 and the lower support 200 and includes a first rotating disc 310, a second rotating disc 320, a limiting protrusion 330 and a switch 340, the first rotating disc 310 includes a first track 311, the second rotating disc 320 is rotatably stacked on the first rotating disc 310 and includes a second track 321, and the second rotating disc 320 rotates relative to the first rotating disc 310 so that all or part of the second track 321 corresponds to the first track 311. The limit protrusion 330 may protrude into the first track 311 and the second track 321 to be limited by the first track 311 and the second track 321, and the switch 340 is selectively coupled to the first turntable 310 and the second turntable 320. The switch 340 is switched between a first position and a second position, and when the switch 340 is located at the first position, the switch is coupled to the first turntable 310 and the second turntable 320 to prevent the first turntable 310 and the second turntable 320 from rotating, and when the switch 340 is located at the second position, the switch allows the second turntable 320 and the first turntable 310 to rotate relatively.

Therefore, the switch 340 can limit or allow the second turntable 320 and the first turntable 310 to rotate relatively, and can adjust the overlapped portion of the first rail 311 and the second rail 321, thereby more conveniently adjusting the rotation angle of the lower support 200 relative to the upper support 100. Details of the hip prosthesis structure 10 will be described later.

The upper and

lower supports

100 and 200 have a strip structure, and the upper support 100 may be further connected to a waist belt (not shown) to form an upper bracket, and the lower support 200 may be further connected to a thigh belt (not shown) to form a lower bracket, so that the user can fix the hip joint assistant device 10 at the hip joint.

The second turntable 320 is stacked below the first turntable 310, the first rail 311 and the second rail 321 have arc-shaped opening structures, and the first turntable 310 and the second turntable 320 can rotate concentrically relative to each other, so that all or part of the first rail 311 and the second rail 321 are aligned. In the embodiment, the limiting protrusion 330 protrudes into the second rail 321 and the first rail 311 from bottom to top, and the limiting protrusion 330 must be limited by the second rail 321 and the first rail 311 at the same time. Therefore, when the overlapped portion of the first rail 311 and the second rail 321 is larger, the path along which the limiting protrusion 330 can be displaced is longer, and the lower support 200 can rotate relatively to the upper support 100 by a larger extent; conversely, when the overlapped portion of the first rail 311 and the second rail 321 is smaller, the path along which the limiting protrusion 330 can be displaced is shorter, and the lower support 200 can rotate with a smaller amplitude relative to the upper support 100.

Therefore, when the switch 340 is located at the second position to allow the first turntable 310 and the second turntable 320 to rotate, the first turntable 310 or the second turntable 320 may be rotated to change the alignment status of the first rail 311 and the second rail 321, and when the switch 340 is adjusted to a desired position, the switch 340 is switched to the first position to prevent the first turntable 310 and the second turntable 320 from rotating, so as to fix the positions of the first turntable 310 and the second turntable 320.

As shown in fig. 2 and 3, the first rotating disk 310 may further include a plurality of first engaging teeth 313, the second rotating disk 320 may further include a plurality of second engaging teeth 323, the switch 340 may include a blocking piece 341, and when the switch 340 is located at the first position, the blocking piece 341 is coupled to at least one of the first engaging teeth 313 and the at least one of the second engaging teeth 323; when the switch 340 is in the second position, the blocking piece 341 is allowed to disengage from the at least one first engagement tooth 313 and the at least one second engagement tooth 323.

The blocking piece 341 includes a plurality of recesses 3411 on one side of the body of the blocking piece 341 facing the first engaging teeth 313 and the second engaging teeth 323, so as to correspond to a portion of the plurality of first engaging teeth 313 and the second engaging teeth 323. In other words, due to the overlapping relationship between the first rotating disk 310 and the second rotating disk 320, the first engaging tooth 313 and the second engaging tooth 323 are also overlapped and aligned with each other, so that the recess 3411 has a thickness (height along the axial direction) greater than the thickness of the first engaging tooth 313 or the second engaging tooth 323, so that the recess can be coupled to the first engaging tooth 313 and the second engaging tooth 323 at the same time, thereby preventing the first rotating disk 310 and the second rotating disk 320 from rotating.

The rotation limiting mechanism 300 may further include a lower cover 360 and an upper cover 350, the lower cover 360 is connected to the lower support 200, the upper cover 350 is connected to the upper support 100, and the upper cover 350 corresponds to the lower cover 360 to form a receiving space (not shown). The first turntable 310 and the second turntable 320 are accommodated in the accommodating space, and the limiting protrusion 330 is disposed on the lower cover 360. In other embodiments, the limiting protrusion may also be disposed on the upper cover and protrude toward the lower cover, which is not limited to this.

The switch 340 may further include a rotating rod 342, the rotating rod 342 includes a pushing surface 3421, when the switch 340 is located at the first position, the pushing surface 3421 of the rotating rod 342 pushes the blocking block 341, and when the switch 340 is located at the second position, the pushing surface 3421 is separated from the blocking block 341. The switch 340 may further include a knob 343, and the knob 343 is connected to the rotating rod 342 and exposed from the upper cover 350.

The pushing surface 3421 is located at one end of the rotating rod 342, and the other end of the rotating rod 342 is inserted into a through hole (not shown) of the knob 343, so that the user can operate the knob 343 to rotate the rotating rod 342. Preferably, the rotating shaft 342 may include a positioning hole (not shown), and the rotation limiting mechanism 300 may further include a positioning member (not shown) coupled to the positioning hole to position the rotating shaft 342 when the rotating shaft 342 rotates to a predetermined position.

In addition, in order to match the pushing surface 3421 of the rotating rod 342, the blocking block 341 may further include an inclined surface 3412 located on the other side of the body of the blocking block 341 and capable of being pushed by the pushing surface 3421.

As shown in fig. 4A, when the switch 340 is located at the first position, the pressing surface 3421 presses against the inclined surface 3412, so that the recess 3411 of the blocking block 341 engages with the first engaging tooth 313 and the second engaging tooth 323, and the rotation of the first rotating disc 310 and the second rotating disc 320 is prevented. On the contrary, as shown in fig. 4B, when the switch 340 is located at the second position, the user can rotate the knob 343 to couple the rotating rod 342, so that the pushing surface 3421 is away from the inclined surface 3412, and then rotate the first rotating disc 310 and the second rotating disc 320, so as to adjust the alignment status of the first rail 311 and the second rail 321, and after the adjustment is completed, switch the knob 343 to the first position.

In order to facilitate the adjustment of the first rotating disk 310 and the second rotating disk 320, the first rotating disk 310 may further include a first lug 312, the second rotating disk 320 may further include a second lug 322, and the first lug 312 and the second lug 322 are exposed out of the accommodating space. Preferably, the rotation limiting mechanism 300 may further include an angle indicator 370 disposed on the upper cover 350, the angle indicator 370 includes a plurality of first scales 371 and a plurality of second scales 372, the first lug 312 is rotated to correspond to one of the first scales 371, and the second lug 322 is rotated to correspond to one of the second scales 372. The angle indicator 370 may further assist the user in adjusting the angle.

In the embodiment shown in fig. 1 to 4B, the lower cover 360 may include an engaging portion 361, the lower support 200 may include a locking portion 210 corresponding to the engaging portion 361, the lower support 200 rotates around a first central line I1 with respect to the lower cover 360, the lower support 200 rotates around a second central line I2 with respect to the upper support 100, and the first central line I1 is perpendicular to the second central line I2.

More specifically, the engaging portion 361 has a cylindrical structure, the engaging portion 210 also has a cylindrical structure, the engaging portion 361 includes a plurality of teeth (not shown), and the engaging portion 210 includes a plurality of teeth (not shown) corresponding to the teeth, so as to be capable of engaging with each other.

The rotation limiting mechanism 300 further includes a screw 380, the screw 380 locks the engaging portion 361 to the engaging portion 210, and when the screw 380 is unscrewed, the engaging portion 361 and the engaging portion 210 are allowed to rotate relatively. In other words, the user can unscrew the screw 380, rotate the lower supporting member 200 to the proper abduction angle, and then screw the screw 380, so that the engaging portion 361 is engaged with the engaging portion 210 to fix the abduction angle, but the present invention is not limited thereto.

Referring to fig. 5, fig. 5 is a perspective view of a hip joint assistive device structure 20 according to another embodiment of the present invention. The hip prosthesis structure 20 is similar to the hip prosthesis structure 10 shown in fig. 1-4B, and will be described in detail only for different points, and the description of the same points will not be repeated.

The rotation limiting mechanism 300a may further include an adaptor 390a, where the adaptor 390a includes a first adaptor 391a and a second adaptor 392a, and the second adaptor 392a and the first adaptor 391a are disposed at an interval. The lower cover 360a includes an engaging portion 361a corresponding to the first transfer portion 391 a; the lower support 200a includes a locking portion 210a corresponding to the second adapter 392 a. The lower support 200a rotates around the third center line I3 relative to the adapter 390a, the lower cover 360a rotates around the fourth center line I4 relative to the adapter 390a, the lower cover 360a rotates around the second center line I2 relative to the upper support (not numbered), the third center line I3 is parallel to the fourth center line I4, and the third center line I3 and the fourth center line I4 are perpendicular to the second center line I2.

The first adaptor 391a and the second adaptor 392a are disposed on the same side of the body of the adaptor 390a, the first adaptor 391a and the second adaptor 392a both have ring-tooth structures, the engaging portion 361a has a shaft structure and includes a plurality of latches facing the first adaptor 391a to correspondingly engage with the first adaptor 391 a; the engaging portion 210 also has a cylindrical structure and includes a plurality of convex teeth facing the second transferring portion 392a to correspondingly engage with the second transferring portion 392 a. The rotation limiting mechanism 300a may further include two screws (not shown) respectively locked to the engaging portion 361 and the engaging portion 210, so as to facilitate the user to adjust the abduction angle.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A hip joint prosthesis structure, comprising:

an upper support member;

a lower support; and

rotatory stop gear, connect in go up the support piece with between the lower support piece, rotatory stop gear contains:

a first turntable comprising a first track;

the second turntable is rotatably stacked on the first turntable and comprises a second track, and the second turntable rotates relative to the first turntable so that all or part of the second track corresponds to the first track;

the limiting protrusion protrudes into the first track and the second track to be limited by the first track and the second track; and

a switch selectively coupled to the first turntable and the second turntable;

the switch is switched between a first position and a second position, and when the switch is located at the first position, the switch is coupled with the first rotating disc and the second rotating disc so as to prevent the first rotating disc and the second rotating disc from rotating, and when the switch is located at the second position, the second rotating disc and the first rotating disc are allowed to rotate relatively.

2. The hip joint aid structure according to claim 1, wherein said first rotatable disk further comprises a plurality of first engaging teeth, said second rotatable disk further comprises a plurality of second engaging teeth, and said switch comprises a blocking piece, said blocking piece being coupled to at least one of said first engaging teeth and at least one of said second engaging teeth when said switch is in said first position, and said blocking piece being allowed to disengage from said at least one of said first engaging teeth and said at least one of said second engaging teeth when said switch is in said second position.

3. The hip joint assistive device structure of claim 2, wherein the switch further comprises a rotating rod, the rotating rod comprises a pushing surface, the pushing surface of the rotating rod pushes against the blocking block when the switch is located at the first position, and the pushing surface is separated from the blocking block when the switch is located at the second position.

4. The hip joint prosthesis structure of claim 3, wherein the rotation limiting mechanism further comprises:

a lower cover connected to the lower supporter; and

the upper cover is connected with the upper supporting piece and corresponds to the lower cover to form an accommodating space;

the first rotating disc and the second rotating disc are accommodated in the accommodating space, and the limiting protrusion is arranged on the lower cover.

5. The hip joint aid structure according to claim 4, wherein the first rotating disc further comprises a first lug, the second rotating disc further comprises a second lug, and the first lug and the second lug are exposed to the accommodating space.

6. The hip joint aid structure according to claim 5, wherein the rotation limiting mechanism further comprises an angle indicator disposed on the upper cover, the angle indicator comprising a plurality of first scales and a plurality of second scales, the first lug is rotated to correspond to one of the first scales, and the second lug is rotated to correspond to one of the second scales.

7. The hip joint assistive device structure of claim 4, wherein the switch further comprises a knob connected to the lever and exposed from the upper cover.

8. The hip joint aid structure according to claim 4, wherein the lower cover includes an engaging portion, the lower support includes a locking portion corresponding to the engaging portion, the lower support rotates about a first center line with respect to the lower cover, the lower cover rotates about a second center line with respect to the upper support, and the first center line is perpendicular to the second center line.

9. The hip joint assistive device structure of claim 8, wherein the rotation limiting mechanism further comprises a screw member, the screw member locks the engaging portion to the engaging portion, and the screw member allows the engaging portion and the engaging portion to rotate relative to each other when the screw member is unscrewed.

10. The hip joint prosthesis structure of claim 4, wherein the rotation limiting mechanism further comprises an adaptor, the adaptor comprising:

a first transition portion; and

the second switching part is arranged at intervals with the first switching part;

the lower cover includes:

an engaging portion corresponding to the first transfer portion; and is

The lower supporter includes:

the clamping part corresponds to the second switching part;

the lower support piece rotates around a third central line relative to the adapter piece, the lower cover rotates around a fourth central line relative to the adapter piece, the lower cover rotates around a second central line relative to the upper support piece, the third central line is parallel to the fourth central line, and the third central line and the fourth central line are perpendicular to the second central line.