Testing machine for exhaust valve of prosthetic socket

Abstract

The utility model provides a testing machine for an exhaust valve of a prosthetic socket, which belongs to the technical field of socket testing and comprises a testing machine body, a first external connection pipe, a second external connection pipe and a sealing plate are arranged in the testing machine body, and the sealing plate is fixedly sleeved on the outer surface of the first external connection pipe; an air inlet joint and an exhaust joint are arranged on the testing machine body in a penetrating and communicating manner, one end orifice of the air inlet joint is communicated with an air inlet passage assembly, and the other end orifice is in detachable threaded connection with a first external pipe; a pipe orifice at one end of the exhaust joint is communicated with an exhaust passage assembly, and a pipe orifice at the other end is in detachable threaded connection with the second external pipe; a pressure gauge and an air pump are installed on the testing machine body, the air inlet end of the pressure gauge is fixedly communicated with a connecting pipe, and the connecting pipe is fixedly communicated with the air inlet connector. And the exhaust passage assembly is opened, so that gas in the sealed space is slowly exhausted through the exhaust passage assembly, and the pressure gauge can detect the pressure in the sealed space in real time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the receiving cavity test technical field, concretely relates to a kind of artificial limb receiving cavity exhaust valve testing machine. BACKGROUND

[0002] Receiving cavity is the key component for connecting residual limb and distal end of artificial limb in artificial limb, and its design and adaptation are crucial to the use effect of artificial limb, and receiving cavity is divided into various kinds, including plug-in receiving cavity, full-contact receiving cavity, suction receiving cavity and the like.For suction receiving cavity, the bottom of suction receiving cavity does not directly contact with residual limb, forms a sealed space, discharges gas in the sealed space through exhaust valve, and uses negative pressure to adsorb receiving cavity on residual limb, so as to achieve the purpose of fixing artificial limb.

[0003] However, the preparation materials of suction receiving cavity are various, and the pressure range that can be carried by different preparation materials and different sizes of receiving cavity is also different, and some receiving cavities with soft material, such as receiving cavities with rubber material, can provide better comfort, but are prone to deformation under the influence of negative pressure environment, thereby affecting subsequent use. When existing receiving cavity is installed, the pressure range that can be borne by receiving cavity is often estimated by experience and naked eye of installation technician, and this method has many influencing factors and various uncertainties, without exact scientific theory data, so that residual limb of amputee is easily subjected to secondary injury, and has certain limitation. UTILITY MODEL CONTENT

[0004] To solve the problems in the background art, the utility model provides a kind of artificial limb receiving cavity exhaust valve testing machine.

[0005] To achieve the above purpose, the utility model provides technical scheme as follows:

[0006] A kind of artificial limb receiving cavity exhaust valve testing machine, including testing machine body, first outer tube, second outer tube and sealing plate are placed in the testing machine body, sealing plate is fixedly covered on the outer surface of first outer tube;Air inlet connector and exhaust connector are communicated through and set on testing machine body, air inlet connector is communicated through and set on air inlet passage assembly in one end pipe, and the other end pipe is detachably screwed with first outer tube;Exhaust connector is communicated through and set on exhaust passage assembly in one end pipe, and the other end pipe is detachably screwed with second outer tube;Pressure gauge and air pump are installed on the testing machine body, and the air inlet end of pressure gauge is fixedly communicated and set on connecting pipe, and connecting pipe is fixedly communicated with air inlet connector.

[0007] Further, the air inlet passage assembly comprises a third connecting channel, the third connecting channel and a fourth connecting channel are fixedly arranged inside the test machine body, the air inlet joint is communicated with the fourth connecting channel through the third connecting channel, the fourth connecting channel is communicated with the outside environment and the exhaust end of the air pump; in addition, the fourth connecting channel is fixedly arranged with a third valve between the outside environment and fixedly arranged with a fourth valve between the third connecting channel.

[0008] Further, the air exhaust passage assembly comprises a first connecting channel, the first connecting channel and a second connecting channel are fixedly arranged inside the test machine body, the air exhaust joint is communicated with the first connecting channel, the first connecting channel is communicated with the air suction end of the air pump and the second connecting channel, and the second connecting channel is communicated with the outside environment; in addition, the air exhaust joint is fixedly arranged with a second valve between the first connecting channel, and the second connecting channel is fixedly arranged with a first valve between the outside environment.

[0009] Further, the test machine body is provided with a second control unit, and the air pump, the second valve and the third valve are electrically connected with the second control unit.

[0010] Further, the test machine body is provided with a first control unit, and the air pump, the first valve and the fourth valve are electrically connected with the first control unit.

[0011] The application has the following beneficial effects:

[0012] The sealing plate is pasted and sealed with the outside receiving cavity, so that the receiving cavity and the sealing plate form a sealed space, then the air exhaust passage assembly is opened, so that the gas in the sealed space is slowly discharged through the air exhaust passage assembly. The pressure gauge can detect the pressure in the sealed space in real time, and the safety negative pressure value in the receiving cavity can be determined by observing the external change of the receiving cavity and using the data on the pressure gauge, so that the patient can select a more suitable receiving cavity according to his own needs, avoid causing secondary damage to the residual limb of the amputee, and effectively protect the health of the physically disabled vulnerable groups. BRIEF DESCRIPTION OF DRAWINGS

[0013] The above and other objects, features and advantages of the exemplary embodiments of the present application will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0014] Fig. 1 is a schematic diagram of the whole structure of the test machine body of the present application;

[0015] Fig. 2 is a schematic diagram of the air exhaust passage assembly of the present application;

[0016] Fig. 3 Figure 1 is a partial structure schematic diagram of the air inlet passage assembly of the utility model.

[0017] Mark explanation:

[0018] 1, test machine body; 2, machine cover; 3, pressure gauge; 4, groove; 5, drawer; 6, connecting pipe; 7, air inlet joint; 8, first control unit; 9, air pump; 10, second control unit; 11, air outlet joint; 12, first external pipe; 13, sealing plate; 14, second external pipe; 15, first connecting channel; 16, second connecting channel; 17, first valve; 18, second valve; 19, third valve; 20, fourth valve; 21, third connecting channel; 22, fourth connecting channel. Specific implementation

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, and those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] As Figs. 1-3 shown, the technical scheme adopted by the utility model is as follows: a prosthetic socket exhaust valve testing machine, comprising a test machine body 1, a machine cover 2 is hingedly arranged on the top of the test machine body 1, a groove 4 is formed on one side of the test machine body 1, a drawer 5 is slidably arranged in the groove 4, a first external pipe 12, a second external pipe 14 and a sealing plate 13 are placed in the drawer 5, the sealing plate 13 is fixedly sleeved on the outer surface of one end of the first external pipe 12, and the sealing plate 13 can block the opening of the socket by means of adhesion.

[0021] The air pump 9, the pressure gauge 3, the first control unit 8 and the second control unit 10 are fixedly installed on the test machine body 1. The air inlet joint 7 and the air outlet joint 11 are throughly and communicatively arranged on the test machine body 1, the air inlet joint 7 is communicatively arranged with the air inlet passage assembly through the pipe opening in the test machine body 1, the air outlet joint 11 is communicatively arranged with the air outlet passage assembly through the pipe opening in the test machine body 1, the air inlet passage assembly is used for conveying external air to the inside of the socket, and the air outlet passage assembly is used for discharging the air in the socket.

[0022] The pipe opening of the air inlet joint 7 outside the test machine body 1 is detachably and threadedly connected with the first external pipe 12, and the pressure gauge 3 is fixedly communicated with the part of the air inlet joint 7 outside the test machine body 1 through the connecting pipe 6.

[0023] The exhaust joint 11 is detachably screwed with the pipe opening outside the testing machine body 1, and the second external pipe 14 is detachably screwed with the exhaust valve on the receiving cavity.

[0024] The air inlet passage assembly comprises a third connecting channel 22, and the third connecting channel 22 and a fourth connecting channel 22 are fixedly arranged inside the testing machine body 1, the air inlet joint 7 is communicated with the fourth connecting channel 22 through the third connecting channel 21, and the fourth connecting channel 22 is communicated with the outside environment and the exhaust end of the air pump 9. In addition, the fourth connecting channel 22 is fixedly arranged with the third valve 19 between the outside environment and the third connecting channel 21, and is fixedly arranged with the fourth valve 20 between the third connecting channel 21.

[0025] The air exhaust passage assembly comprises a first connecting channel 15, and the first connecting channel 15 and a second connecting channel 16 are fixedly arranged inside the testing machine body 1, the exhaust joint 11 is communicated with the first connecting channel 15, the first connecting channel 15 is communicated with the air pump 9 and the second connecting channel 16, and the second connecting channel 16 is communicated with the outside environment. In addition, the exhaust joint 11 is fixedly arranged with the second valve 18 between the first connecting channel 15, and the second connecting channel 16 is fixedly arranged with the first valve 17 between the outside environment.

[0026] The air pump 9, the first valve 17 and the fourth valve 20 are electrically connected with the first control unit 8. The air pump 9, the second valve 18 and the third valve 19 are electrically connected with the second control unit 10.

[0027] Working principle: when the receiving cavity of the artificial limb needs to be tested, first, open the cover 2, pull out the drawer 5, and take out the first external pipe 12, the second external pipe 14 and the sealing plate 13. Then, the sealing plate 13 is sealed with the opening of the receiving cavity by adhesion, and the end of the first external pipe 12 away from the sealing plate 13 is connected with the air inlet joint 7. One end of the second external pipe 14 is connected with the exhaust joint 11, and the other end of the second external pipe 14 is connected with the exhaust valve on the receiving cavity. At this time, the air inlet joint 7, the connecting pipe 6, the pressure gauge 3, the first external pipe 12, the receiving cavity, the second external pipe 14 and the exhaust joint 11 form a passage, so that the pressure in the receiving cavity is displayed in real time through the pressure gauge 3.

[0028] Subsequently, the negative pressure value that the receiving cavity can withstand is tested, and the air exhaust passage assembly is started to absorb the air in the receiving cavity.

[0029] Through the second control unit 10, start the air pump 9, open the second valve 18 and the third valve 19.Under the action of the air pump 9, the air in the receiving cavity enters the second external pipe 14 from the exhaust valve of the receiving cavity, the air in the second external pipe 14 enters the first connecting channel 15 through the exhaust joint 11, and the air in the first connecting channel 15 enters from the suction end of the air pump 9 and is discharged from the exhaust end of the air pump 9, and the air discharged from the exhaust end of the air pump 9 is discharged to the external environment from the fourth connecting channel 22.

[0030] In the process of discharging the air in the receiving cavity, a negative pressure is generated in the receiving cavity, and through the real-time detection of the pressure gauge 3, the operator can confirm the safe negative pressure value in the receiving cavity according to the appearance change of the receiving cavity, so as to ensure that the patient can select a more suitable receiving cavity according to his own needs, avoid causing secondary damage to the residual limb of the amputee, and effectively protect the health of the physically disabled vulnerable groups.

[0031] After the test is completed, in order to facilitate the removal of the sealing plate 13, the air inlet passage assembly can be opened to release the negative pressure state in the internal.

[0032] Through the second control unit 10, start the air pump 9, open the first valve 17 and the fourth valve 20.Under the action of the air pump 9, the external air enters the second connecting channel 16, the air entering the second connecting channel 16 enters from the suction end of the air pump 9 and is discharged from the exhaust end, so that the air is discharged to the receiving cavity in sequence through the fourth connecting channel 22, the third connecting channel 21, the air inlet joint 7 and the first external pipe 12, so that the negative pressure state in the receiving cavity disappears, facilitating the removal of the sealing plate 13.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A prosthetic socket vent valve testing machine characterized by, The utility model provides a test machine, including test machine body (1), first outer connecting pipe (12), second outer connecting pipe (14) and sealing plate (13) are placed in test machine body (1), and sealing plate (13) is fixedly sleeved on the outer surface of first outer connecting pipe (12), and the air inlet joint (7) and exhaust joint (11) are communicated through on test machine body (1), and the one end pipe orifice of air inlet joint (7) is communicated with the air inlet passage assembly, and the other end pipe orifice is detachably screwed with first outer connecting pipe (12), and the one end pipe orifice of exhaust joint (11) is communicated with the exhaust passage assembly, and the other end pipe orifice is detachably screwed with second outer connecting pipe (14), and pressure gauge (3) and air pump (9) are installed on test machine body (1), and the air inlet end of pressure gauge (3) is fixedly communicated with connecting pipe (6), and connecting pipe (6) is fixedly communicated with air inlet joint (7).

2. The prosthetic socket vent valve tester of claim 1, wherein, The air inlet passage assembly includes third connecting channel (21), and the inside of test machine body (1) is fixedly provided with third connecting channel (21) and fourth connecting channel (22), air inlet joint (7) is communicated with fourth connecting channel (22) through third connecting channel (21), fourth connecting channel (22) is communicated with the outside environment and the exhaust end of air pump (9), in addition, fourth connecting channel (22) is fixedly installed third valve (19) between the outside environment and fourth connecting channel (22), and fourth valve (20) is fixedly installed between fourth connecting channel (22) and third connecting channel (21).

3. The prosthetic socket vent valve tester of claim 2, wherein, The exhaust passage assembly includes first connecting channel (15), and the inside of test machine body (1) is fixedly provided with first connecting channel (15) and second connecting channel (16), exhaust joint (11) is communicated with first connecting channel (15), and first connecting channel (15) is communicated with the suction end of air pump (9) and second connecting channel (16), and second connecting channel (16) is communicated with the outside environment, in addition, second valve (18) is fixedly installed between exhaust joint (11) and first connecting channel (15), and first valve (17) is fixedly installed between second connecting channel (16) and the outside environment.

4. The prosthetic socket vent valve tester of claim 3, wherein, Second control unit (10) is arranged on test machine body (1), and air pump (9), second valve (18) and third valve (19) are electrically connected with second control unit (10).

5. The prosthetic socket vent valve tester of claim 3, wherein, First control unit (8) is arranged on test machine body (1), and air pump (9), first valve (17) and fourth valve (20) are electrically connected with first control unit (8).

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