TWM526373U - Prosthetic socket vacuum suction joint having locking function - Google Patents

Description

Prosthetic cylinder vacuum suction joint with locking function

The present invention relates to a vacuum suction joint of a prosthetic cylinder with a locking function, which is used for adjusting the degree of adhesion between the residual limb and the prosthetic of the user, and is characterized in that the vacuum state of the cylinder can be released by one key pressing and the prosthetic limb is unlocked at the same time. The bushing locking pin simplifies the cumbersome steps of the prosthesis when disassembling.

Usually, when the prosthetic user is assembled, the residual limb passes through the soft inner prosthetic bushing, and the corresponding size of the cylinder is matched with the auxiliary device to remove the excess air of the residual limb and the prosthetic cylinder through the extraction action. Maximizing the vacuum density; however, in the conventional construction, in order to avoid the breakage of the prosthetic limb caused by the breakage or failure of the airtight device, the adjustment vacuum structure can be matched with a locking structure, and the two structures do not affect each other in actual use. However, in terms of the user, there is a cumbersome inconvenience in removing the prosthetic limb; For example, in U.S. Patent No. 6,627,787, the present invention is characterized in that the locking assembly corresponds to a locking pin through a one-way ratchet, and the centering shaft is rotated by the button by the button, thereby causing the one-way ratchet to be rotated or fixed, and the prosthetic inner bushing is allowed. The locking pin can enter and exit the locking assembly. Although the locking assembly has a one-way exhaust valve at the same time, there is no design of an external vacuum suction device, and no mechanism for removing the suction force of the prosthetic cylinder; it is clear that the locking assembly is only Link function, not as vacuum suction for prosthetic barrel; U.S. Patent No. 6,334,876, the present invention is characterized in that the locking mechanism is placed in the socket and combined into an airtight space. When the locking mechanism is unlocked, the external air can be introduced simultaneously to release the adsorption force of the prosthetic cylinder, which is known from the above structure. Has the advantage of simplifying the number of components. However, there is no one-way exhaust valve in this case. When the unlocking device is not pressed, the air in the cylinder cannot be continuously discharged, which makes it impossible to maintain the suction force of the cylinder when the user walks. Moreover, there is no such case. The design of the external vacuum suction device is not used for vacuum adsorption of the prosthetic cylinder.

In U.S. Patent No. 8,821,187, the case is characterized in that the spool valve has a passage through which an external vacuum pump can be used to form an internal vacuum or introduce external air to relieve the vacuum state. Although the case also has a locking mechanism placed in the socket, when the locking mechanism is unlocked, the suction in the prosthetic cylinder cannot be removed at the same time. Therefore, when the user wants to take off the prosthetic limb, the sliding valve must first be pushed open, and then It is necessary to press and hold the unlocking device on the locking mechanism to release the connection and fixation of the prosthetic limb. In fact, the case is actually an increase in the user's inconvenience in operation; therefore, there is still room for improvement in its operability.

In the case of the patent WO2015002955A1, the structure disclosed is characterized in that the gas passage provided in the locking pin can be externally connected with a vacuum pump to form a vacuum state inside the cylinder, and the safety is enhanced by the locking device. However, there is no one-way exhaust valve in this case. When the external vacuum pump fails, the air will enter the cylinder to destroy the vacuum state. Moreover, the case is not designed to unlock the vacuum state, and there are still many inconveniences. Improvements are needed at the office.

In summary, various types of locking pins and vacuum regulating structures are not too complicated in structure, or are designed separately for functions. After knowing the actual application and research by the foregoing structure, there are still disadvantages that must be improved.

In view of the existing structure, there are complicated and inconvenient operation in use. Therefore, the purpose of this creation is to develop how to combine the conventional vacuum adjustment with the fixed structure of the connection, which is the main focus of the creation.

In order to achieve the above purpose, the present invention is a prosthetic cylinder vacuum suction joint with a locking function, the structure comprising a locking pin having a tapered surface, disposed in a positioning pin hole in a positioning mechanism, and the positioning The mechanism is provided with a through passage and a vacuum release passage in the transverse direction, and is connected to the fixed pin hole. The through passage is provided at one end with an adjusting component for adjusting the vacuum state, and the other end is provided with a fixing and releasing the locking. a locking component of the pin; The vacuum adjustment of the creative adjustment assembly and the easy-to-release and fixed locking assembly allow the vacuum adjustment and the latch lock function to be integrated into one design, which is convenient for the user to adjust the comfort at any time with the simplest and convenient operation. degree.

[This creation]

1‧‧‧ Positioning agency

22‧‧‧Seal ring

11‧‧‧Base

111‧‧‧Position pin hole

112‧‧‧through passage

113‧‧‧Vacuum release channel

114‧‧‧ chamber

115‧‧‧First vacuum channel

116‧‧‧Second vacuum channel

117‧‧‧ bottom

12‧‧‧Base

121‧‧‧Locking screws

13‧‧‧Lock pin

131‧‧‧ Groove

132‧‧‧Conical surface

133‧‧‧ positioning parts

2‧‧‧Locking components

21‧‧‧Pressing parts

23‧‧‧Limit blocks

231‧‧‧Locking hole

232‧‧‧Contact surface

24‧‧ ‧ spring

3‧‧‧Adjustment components

31‧‧‧Regulating valve needle

32‧‧‧check valve

33‧‧‧Seal ring

34‧‧‧Intubation fittings

35‧‧‧ body

4‧‧‧Exhaust body flow A

41‧‧‧Inlet gas flow B

42‧‧‧Exhaust body flow C

43‧‧‧Inlet gas flow D

6‧‧‧tube prosthetic liner

61‧‧‧Dutch

The first picture is a perspective view of the creation.

Figure 2 is an exploded view of the creation.

Figure 3 is a schematic illustration of the air flow that is not pressed by the locking assembly of the present invention.

Figure 3A is a schematic illustration of the locking component of the present invention not pressed.

Figure 4 is a schematic cross-sectional view of the air flow after the locking assembly of the present invention is pressed.

Fig. 4A is a schematic view of the locking component of the present invention after being pressed.

Figure 5 is a perspective view of another embodiment of the present creation.

Figure 6 is an exploded view of another embodiment of the present creation.

Figure 7 is a schematic illustration of the air flow of the locking assembly that is not pressed by another embodiment of the present invention.

Figure 7A is a schematic illustration of the locking assembly of another embodiment of the present invention not being pressed.

Figure 8 is a schematic cross-sectional view of the air flow after the locking assembly of the present invention is pressed.

Figure 8A is a schematic illustration of the locking assembly of another embodiment of the present invention after being pressed.

Generally, according to the present invention, the best feasible embodiment, together with the detailed description of Figures 1 and 2, adds to the understanding of the creation, and the creation is a type of prosthetic cylinder vacuum suction joint with a locking function. In particular, a joint specially designed for the inner leg bushing (6) of the tube has a positioning mechanism (1), and the positioning mechanism (1) is mainly composed of a base (11) and a base (12). The plurality of locking screws (121) are screwed and fixed, wherein a center of the positioning mechanism (1) is provided with a positioning pin hole (111), which can be provided after a locking pin (13) is inserted through a positioning member (133). Wherein, a locking groove (131) is disposed under the center of the locking pin (13), the groove (131) is connected with a tapered surface (132), and the positioning mechanism (1) is provided with a through passage (112) in a lateral direction. And a vacuum releasing passage (113), and connecting the positioning pin hole (111), one end of the through passage (112) is provided with an adjusting component (3), and the adjusting component (3) is controlled by a regulating valve needle (31) a check valve (32), a sealing ring (33), and a cannula joint (34) are sequentially connected. The right side of the check valve (32) is provided with a first vacuum suction passage (115) for passage. The chamber (114) is used, and the center of each component in the adjusting component (3) is hollow for fluid circulation, but the design is a one-way air valve, which is limited to one-way circulation of the fluid; The through passage (112), and the other end of the through passage (112) is provided with a locking assembly (2), the locking assembly (2) is composed of a pressing member (21), a sealing ring (22), and a limit A bit block (23) and a spring (24) are sequentially connected to each other, and the limit is The block (23) is longitudinally provided with a locking hole (231), and a bottom body (117) of the positioning mechanism (1) is provided with a plug body (35); as shown in Figures 3 to 3A, the foregoing latching At least half of the inner diameter side edge of the hole (231) is an inclined contact surface (232), and the contact surface (232) is inclined at an angle corresponding to the tapered surface (132) of the locking pin (13). The locking hole (231) is fitted into the locking pin (13), and the through passage (112) is disposed at one end of the adjusting component (3) and the locking pin (13) is in the groove (131). The space between the chambers is formed with a chamber (114) capable of connecting the external vacuum pump through the first vacuum suction passage (115) and the cannula joint (34) of the adjustment assembly (3). Thereby, the air between the socket (61) and the inner tube inner liner (6) connected to the upper end of the chamber (114) is extracted, as shown by the exhaust body flow A(4) in the figure. The vacuum adsorption strength can be adjusted. In addition, the user can rotate the adjusting valve needle (31) as needed, manually close the externally connected vacuum pump to avoid excessive suction, and the plug body (35) can be disposed at the positioning mechanism. (1) The second suction passage (116) of the bottom end (117) prevents leakage of internal air thereby causing excessive operation of the vacuum pump.

Referring again to Figures 4 to 4A, when the user needs to disassemble the prosthesis, the contact surface (232) will be pushed to the left and the locking pin (13) after pressing the locking assembly (2). The tapered surface (132) is disengaged. At this time, as shown by the inlet gas flow B (41) in the figure, the vacuum release passage (113) flows into the inner tube inner liner (6) for releasing the original In the vacuum state, the locking pin (13) can be taken out.

When the locking assembly (2) is not pressed, the inner portion of the structure is pushed by the spring (24) to push the limiting block (23), and the limiting block (23) and the inner plane of the base (11) have a sealing ring (22). Prevents air from leaking through the through passage (112). When the locking component (2) is pressed, the sealing ring (22) and the limiting block (23) are interlocked, so that the sealing ring (22) is not separated from the inner plane of the base (11), and the air is directly The vacuum is released by flowing through the passage (112) and the vacuum release passage (113) into the chamber (114).

For another embodiment of the present invention, please refer to the structure shown in FIG. 5 to FIG. 8A, the structure has a positioning mechanism (1), and the positioning mechanism (1) is mainly composed of a base (11) and a The base (12) is screwed and fixed by a plurality of locking screws (121), wherein a center of the positioning mechanism (1) is provided with a positioning pin hole (111) for allowing a locking pin (13) to pass through a positioning member (133). And then disposed therein, and a bottom end (117) of the positioning mechanism (1) is provided with a socket joint (34) fixed to the bottom of the locking pin (33), the center of the locking pin (13) a groove (131) is disposed, the groove (131) is connected with a tapered surface (132), and the positioning mechanism (1) is provided with a through passage (112) and a vacuum release passage (113) in a lateral direction, and is Connected to the positioning pin hole (111), one end of the through passage (112) is provided with a regulating valve needle (31) and a plug body (35) are sequentially connected to form a one-way air valve, which is limited only to the fluid one-way. Circulating, and the through passage (112) is further provided with a second vacuum suction passage (116) connected to the insertion tube joint (34), and the other end of the through passage (112) is provided with a locking assembly (2), the locking Component (2) is pressed by one (21), a sealing ring (22), a stopper (23), a spring (24) consisting of sequentially coupled, and in that the stopper (23) is provided with a longitudinal locking hole (231); Referring to FIG. 7 to FIG. 8A, the locking hole (231) is opposite to the inclined contact surface (232) of the foregoing embodiment, and can correspond to the tapered surface (132) of the locking pin (13). When the locking pin (13) is fitted and fixed in the locking hole (231), the through passage (112) is at a position of one end of the adjusting valve needle (31), and the locking pin (13) is located between the groove (131) The space is formed with a chamber (114) that cooperates with a second vacuum suction passage (116) coupled to the through passage (112), and is connected to the external vacuum pump by a cannula joint (34). The chamber (114) communicates with the air between the upper end connected barrel (61) and the barrel prosthetic inner liner (6), as shown by the exhaust body flow C (42) in the figure, so that the vacuum is adsorbed. The intensity is adjusted, and when the user is optimally adapted, the external link is manually closed. a vacuum pump, and rotating the regulating valve needle (31) to block a connection relationship between the chamber (114) and the second vacuum suction passage (116); and when the user disassembles the prosthetic limb to rest, by pressing the locking assembly (2) After that, the contact surface (232) will be pushed to the left to disengage from the tapered surface (132) of the locking pin (13), and the external air will be removed by the air hole (113) as shown in the figure. The inflowing gas flow D (43) passes through the vacuum release passage (113) and flows into the inner tube inner liner (6) to release the original vacuum state, and the lock pin (13) is taken out.

When the locking assembly (2) is not pressed, the inner portion of the structure is pushed by the spring (24) to push the limiting block (23), and the limiting block (23) and the inner plane of the base (11) have a sealing ring (22). Prevents air from leaking through the through passage (112). When the locking component (2) is pressed, the sealing ring (22) is interlocked with the limiting block (23), so that the sealing ring (22) is not sealed from the inner plane of the base (11), and the air directly passes through the through passage (112). The vacuum release passage (113) flows into the chamber (114) to release the vacuum.

The two embodiments are described above, and the adjustment of the position of the two through the plug body (35) and the cannula joint (34) can be seen in the figure, so that the adjustment structure is changed; The purpose is to integrate the vacuum adjustment and the latch lock function into one design, which is convenient for the user to adjust the comfort at any time with the simplest and convenient operation. The connection specifications used in the middle are universal design and can be replaced according to user preferences. The joint does not need to be replaced with a cylinder, and can be matched with any commercially available vacuum product, so that the overall structure can be well fitted in assembly.

[This creation]

1‧‧‧ Positioning agency

11‧‧‧Base

111‧‧‧Position pin hole

112‧‧‧through passage

113‧‧‧Vacuum release channel

12‧‧‧Base

121‧‧‧Locking screws

13‧‧‧Lock pin

131‧‧‧ Groove

132‧‧‧Conical surface

133‧‧‧ positioning parts

2‧‧‧Locking components

21‧‧‧Pressing parts

22‧‧‧Seal ring

23‧‧‧Limit blocks

231‧‧‧Locking hole

232‧‧‧Contact surface

24‧‧ ‧ spring

3‧‧‧Adjustment components

31‧‧‧Regulating valve needle

32‧‧‧check valve

33‧‧‧Seal ring

34‧‧‧Intubation fittings

35‧‧‧ body

Claims (6)

The utility model relates to a prosthetic cylinder vacuum suction joint with a locking function, which comprises: a locking pin, a groove is arranged under the center, the groove is connected with a tapered surface; a positioning mechanism is provided at the center for the locking pin to be arranged a positioning pin hole is used, the positioning mechanism is laterally provided with a through passage and a vacuum release passage, and communicates with the positioning pin hole; an adjusting component is fixed at one end of the through passage for setting a rotary adjustment vacuum a regulating valve needle and a socket joint connected to the adjusting valve needle; a locking assembly fixed to the other end of the through passage, comprising a pressing member and a limiting block, and the limiting block Further, a locking hole is disposed therein; the locking hole is configured to be fixedly engaged with the locking pin, so that the through passage forms a chamber at a position where the adjusting assembly is disposed, and when the locking assembly is pressed, the locking hole can be released In engagement with the lock pin, air can be directly introduced into the vacuum state of the chamber by the vacuum release passage, and the lock pin can be taken out. The locking component further includes: a spring disposed at one end of the side edge of the positioning block, and the spring is abutted against the inner side of the base, as claimed in claim 1 a seal ring disposed at the other end of the side of the positioning block, and the spring ring abuts the sealing ring to the inner side edge of the base; by pressing the locking component, the sealing ring can be disengaged The inner side edge of the base allows air to flow through the through passage and the gap in the locking assembly to relieve the vacuum. For example, the prosthetic cylinder vacuum suction joint with the locking function of the first application of the patent scope is a one-way air valve. A prosthetic cylinder vacuum suction joint with a locking function, comprising: a locking pin, a groove is disposed at a lower portion of the center, the groove is connected with a tapered surface; a positioning mechanism is provided with a positioning pin hole for the locking pin to be disposed at the center, and the positioning mechanism is provided with a through passage in the horizontal direction a vacuum release passage and connecting the positioning pin hole, and a bottom of the positioning mechanism is provided with a socket joint; a regulating valve needle can be used for rotating and adjusting the vacuum, and is fixed at one end of the through passage, and the through The channel is provided with a second vacuum suction passage connected to the insertion tube joint; a locking assembly is fixed on the other end of the through passage, and is composed of a pressing member and a limiting block, and the limiting block is further provided with a a locking hole; the locking hole is configured to be fixed and fixed by the locking pin, so that the through passage forms a chamber at a position where the adjusting assembly is disposed, and the socket connector forms a vacuum, and when the locking assembly is pressed, the locking The hole can be released from the locking pin, and the air can be directly introduced into the vacuum state of the chamber by the vacuum release passage, and the locking pin can be taken out. For example, the prosthetic barrel vacuum suction joint with the locking function of the fourth application of the patent scope is a one-way air valve. For example, the patented scope of claim 4 has a locking function of the prosthetic cylinder vacuum suction joint, and the locking assembly further comprises: a spring disposed at one end of the positioning block at the side edge, and the spring is abutted against the inner side of the base a seal ring disposed at the other end of the side of the positioning block, and the spring ring abuts the sealing ring to the inner side edge of the base; by pressing the locking component, the sealing ring can be disengaged The inner side edge of the base allows air to flow through the through passage and the gap in the locking assembly to relieve the vacuum.