Device for measuring inner diameter of prosthetic socket

Abstract

The utility model discloses an internal diameter measuring device for an artificial limb socket, which comprises a base, a measuring frame is arranged on the base, a telescopic support frame is arranged at the top of the measuring frame, a sliding rail is arranged on the measuring frame, a measuring mechanism and a clamping mechanism are connected onto the sliding rail in a sliding manner, and the clamping mechanism is connected with the measuring mechanism. The measuring mechanism comprises a measuring rod movably connected to the sliding rail, an extension rod is slidably connected to the measuring rod, measurement is carried out through readings of the measuring rod and the extension rod, the clamping mechanism comprises a clamping frame movably connected to the sliding rail, and an artificial limb socket is clamped on the clamping frame; by means of the structural design of the measuring mechanism and the clamping mechanism, the artificial limb socket can be stably clamped first, then the internal structure of the artificial limb socket is measured, manpower is liberated, meanwhile, inaccurate measurement under the conditions of shaking and the like is avoided, and the problem that the artificial limb socket is not matched can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of prostheses, in particular to an inner diameter measuring device for a prosthesis receiving cavity. Background Art

[0002] The prosthetic socket is an interface component of the human body mechanical system, which can comfortably accommodate the residual limb and effectively transmit the relevant force to the distal part of the prosthesis. Therefore, the so-called fit of the socket refers to the mutual cooperation between the socket and the residual limb. The mutual cooperation that conforms to anatomy, biology and biomechanics in function is a "good fit".

[0003] Existing prosthetic sockets are prone to size mismatch problems. The reason for this is that the initial measurements are not accurate enough, resulting in errors during fitting. After wearing, gaps or top pressure will occur, causing damage to the residual limb. Therefore, it is necessary to design an inner diameter measuring device. Utility Model Content

[0004] The utility model aims to provide a device for measuring the inner diameter of a prosthetic receiving cavity, so as to overcome the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The present application discloses a device for measuring the inner diameter of a prosthetic receiving cavity, comprising a base, a measuring frame being provided on the base, a telescopic supporting frame being provided on the top of the measuring frame, a sliding rail being provided on the measuring frame, a measuring mechanism and a clamping mechanism being slidably connected to the sliding rail, the measuring mechanism comprising a measuring rod movably connected to the sliding rail, an extension rod being slidably connected to the measuring rod, and measurement is performed through readings of the measuring rod and the extension rod, the clamping mechanism comprising a clamping frame movably connected to the sliding rail, and the prosthetic receiving cavity being clamped on the clamping frame.

[0007] Preferably, the measuring rod is provided with a measuring telescopic rod, the telescopic end of the measuring telescopic rod is connected to the extension rod, and the measuring rod and the extension rod are provided with scales, and readings are taken according to the scales.

[0008] Preferably, a stabilizing mechanism is movably connected on both sides of the extension rod, and the stabilizing mechanism includes a stabilizing plate, one end of the stabilizing plate is rotatably connected to the outer end of the extension rod, and the other end swings until the stabilizing plate fits the inner wall of the prosthesis receiving cavity, and the extension rod is provided with a stabilizing telescopic rod for controlling the swing of the stabilizing plate.

[0009] Preferably, the outer side of the stabilizing plate is arc-shaped.

[0010] Preferably, a fitting groove is formed in the inner side of the stabilizing plate, and the telescopic end of the stabilizing telescopic rod is movably connected to the fitting groove. When the stabilizing telescopic rod extends, the stabilizing plate is driven to rotate outwards.

[0011] Preferably, the clamping mechanism includes a fixed clamp and a fitting clamp movably arranged on the clamping frame. The fixed clamp and the fitting clamp clamp the prosthetic socket, and are respectively clamped on the outer wall and the inner wall of the prosthetic socket.

[0012] Preferably, a moving block is slidably arranged on the measuring frame. The moving block is slidably connected to the sliding rail, and the clamping frame is rotatably connected to the moving block.

[0013] Advantages of the present utility model:

[0014] (1) Through the structural design of the measuring mechanism and the clamping mechanism, the prosthetic socket can be stably clamped first, and then the internal structure of the prosthetic socket can be measured. While liberating manpower, it also avoids inaccurate measurement when there is shaking or the like, and can effectively solve the problem of the prosthetic socket not fitting properly.

[0015] The features and advantages of the present utility model will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic perspective structure diagram of an embodiment of an inner diameter measuring device for a prosthetic socket of the present utility model;

[0017] Figure 2 is an embodiment of the present utility model Figure 1 Schematic enlarged view of the structure at A in;

[0018] Figure 3 is a schematic plan structure diagram of an embodiment of the present utility model;

[0019] Figure 4 is an embodiment of the present utility model Figure 3 Schematic cross-sectional view of the structure at B-B in;

[0020] Figure 5 is an embodiment of the present utility model Figure 4 Schematic enlarged view of the structure at C in;

[0021] In the figure: 1, base; 2, measuring frame; 201, sliding rail; 3, telescopic support frame; 4, clamping mechanism; 401, clamping frame; 402, fixed clamp; 403, fitting clamp; 5, measuring mechanism; 501, measuring rod; 502, extension rod; 503, measuring telescopic rod; 504, stabilizing plate; 505, stabilizing telescopic rod; 506, telescopic end; 507, fitting groove; 6, moving block. Detailed implementation mode

[0022] To make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the scope of the present utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessarily confusing the concept of the present utility model.

[0023] Refer to Figures 1 - 5 , an inner diameter measuring device for a prosthetic socket according to an embodiment of the present utility model includes a base 1, a measuring frame 2 is provided on the base 1, a telescopic support frame 3 is provided at the top of the measuring frame 2, a sliding rail 201 is provided on the measuring frame 2, and a measuring mechanism 5 and a clamping mechanism 4 are slidably connected on the sliding rail 201. The measuring mechanism 5 includes a measuring rod 501 movably connected to the sliding rail 201, and an extension rod 502 is slidably connected to the measuring rod 501. The measurement is carried out by reading the measuring rod 501 and the extension rod 502. The clamping mechanism 4 includes a clamping frame 401 movably connected to the sliding rail 201, and a prosthetic socket is clamped on the clamping frame 401.

[0024] The length of the extended parts of the measuring rod 501 and the extension rod 502 is the inner diameter of the prosthetic socket.

[0025] The moving mode of the extension rod 502 includes manual adjustment and electric adjustment.

[0026] A measuring telescopic rod 503 is provided on the measuring rod 501. The telescopic end 506 of the measuring telescopic rod 503 is connected to the inside of the extension rod 502. Scales are provided on the measuring rod 501 and the extension rod 502, and readings are taken according to the scales.

[0027] The measuring telescopic rod 503 is extended to drive the extension rod 502 to move for reading.

[0028] Stabilizing mechanisms are movably connected to both sides of the extension rod 502. The stabilizing mechanisms include stabilizing plates 504. One end of the stabilizing plate 504 is rotatably connected to the outer end of the extension rod 502, and the other end swings to make the stabilizing plate 504 fit against the inner wall of the prosthetic socket. A stabilizing telescopic rod 505 for controlling the swing of the stabilizing plate 504 is provided on the extension rod 502.

[0029] The stabilizing plate 504 presses against the inner wall of the prosthetic socket, which can ensure that the position where the extension rod 502 extends is the stable part of the prosthetic socket and avoid inaccurate measurement results.

[0030] The angle between the stabilizing plate 504 and the extension rod 502 does not exceed 90 degrees.

[0031] The outer side of the stabilizing plate 504 is arc-shaped.

[0032] A mating groove 507 is formed on the inner side of the stabilizing plate 504, and the telescopic end 506 of the stabilizing telescopic rod 505 is movably connected to the mating groove 507. When the stabilizing telescopic rod 505 extends, it drives the stabilizing plate 504 to rotate outward.

[0033] When the telescopic end 506 of the stabilizing telescopic rod 505 extends, it moves within the mating groove 507. The mating groove 507 is an arc-shaped groove. To cooperate with the extension of the telescopic end 506, it rotates outward, i.e., in the opposite direction of the arc; when the telescopic end 506 retracts, by the same principle, it drives the stabilizing plate 504 to rotate inward.

[0034] The clamping mechanism 4 includes a fixed clamp 402 and a mating clamp 403 movably provided on the clamping frame 401. The fixed clamp 402 and the mating clamp 403 clamp the prosthetic socket, and are respectively clamped on the outer wall and the inner wall of the prosthetic socket.

[0035] A moving block 6 is slidably provided on the measuring frame 2. The moving block 6 is slidably connected to the sliding rail 201, and the clamping frame 401 is rotatably connected to the moving block 6.

[0036] Working process of the present utility model:

[0037] For an inner diameter measuring device of a prosthetic socket of the present utility model, the prosthetic socket is installed on the telescopic support frame 3 and clamped by the fixed clamp 402 and the mating clamp 403 on the clamping frame 401. Then, the measuring telescopic rod 503 extends to drive the extension rod 502 to move and press against the inner wall of the prosthetic socket. Subsequently, the stabilizing telescopic rod 505 extends to drive the telescopic end 506 to move within the mating groove 507, driving the stabilizing plate 504 to rotate outward and press against the inner wall of the prosthetic socket. At this time, the reading of the extension rod 502 is recorded, and by adding the reading of the measuring rod 501, the inner diameter can be calculated.

[0038] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, or improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An inner diameter measuring device for a prosthetic socket, characterized in that: It includes a base (1), a measuring frame (2) is provided on the base (1), a telescopic support frame (3) is provided at the top of the measuring frame (2), a sliding rail (201) is opened on the measuring frame (2), a measuring mechanism (5) and a clamping mechanism (4) are slidably connected on the sliding rail (201), the measuring mechanism (5) includes a measuring rod (501) movably connected on the sliding rail (201), an extension rod (502) is slidably connected on the measuring rod (501), and measurement is carried out through the readings of the measuring rod (501) and the extension rod (502), the clamping mechanism (4) includes a clamping frame (401) movably connected to the sliding rail (201), and a prosthetic socket is clamped on the clamping frame (401).

2. The inner diameter measuring device of a prosthetic socket according to claim 1, characterized in that: A measuring telescopic rod (503) is provided on the measuring rod (501), the telescopic end (506) of the measuring telescopic rod (503) is connected inside the extension rod (502), and scales are provided on the measuring rod (501) and the extension rod (502), and readings are taken according to the scales.

3. The inner diameter measuring device of a prosthetic socket according to claim 1, characterized in that: Stabilizing mechanisms are movably connected to both sides of the extension rod (502), the stabilizing mechanisms include stabilizing plates (504), one end of the stabilizing plate (504) is rotatably connected to the outer end of the extension rod (502), and the other end swings to make the stabilizing plate (504) fit against the inner wall of the prosthetic socket, and a stabilizing telescopic rod (505) for controlling the swing of the stabilizing plate (504) is provided on the extension rod (502).

4. The inner diameter measuring device of a prosthetic socket according to claim 3, characterized in that: The outer side of the stabilizing plate (504) is arc-shaped.

5. The inner diameter measuring device for a prosthetic socket according to claim 3, characterized in that: A matching groove (507) is opened on the inner side of the stabilizing plate (504), the telescopic end (506) of the stabilizing telescopic rod (505) is movably connected in the matching groove (507), and when the stabilizing telescopic rod (505) extends, it drives the stabilizing plate (504) to rotate outwards.

6. The inner diameter measuring device of a prosthetic socket according to claim 3, characterized in that: The angle between the stabilizing plate (504) and the extension rod (502) does not exceed 90 degrees.

7. The inner diameter measuring device of a prosthetic socket according to claim 1, wherein: The clamping mechanism (4) includes a fixed clamp (402) and a mating clamp (403) movably provided on the clamping frame (401), the fixed clamp (402) and the mating clamp (403) clamp the prosthetic socket, and respectively clamp on the outer wall and the inner wall of the prosthetic socket.

8. The inner diameter measuring device of a prosthetic socket according to claim 1, characterized in that: A moving block (6) is slidably provided on the measuring frame (2), the moving block (6) is slidably connected to the sliding rail (201), and the clamping frame (401) is rotatably connected to the moving block (6).

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