Ischial containment based transfemoral prosthetic socket system and its assembly and initial calibration method, multimodal operation test method, and emergency venting and maintenance operation method

Abstract

The application relates to a kind of thigh prosthesis socket systems based on ischium containment, and its assembly and initial calibration method, multimodal operation test method and emergency exhaust and maintenance operation method, including socket, first anchoring air bag to seventh air bag, air pipe centralized device, gas pipeline, intelligent gas collection pump and external double-path switch;It has active pressure regulating function, improves wearing comfort, stability and functionality;Eliminate the risk of backflow, improve control accuracy and safety;Can meet the demand of multidimensional mechanics under complex motion scene, especially suitable for thigh amputation patients with posture change demand.

Description

Technical Field

[0001] This invention belongs to the field of rehabilitation engineering and intelligent prosthesis technology, specifically relating to a thigh prosthesis socket system based on ischial inclusion and its assembly and initial calibration method, multimodal operation testing method, and emergency venting and maintenance operation method. Background Technology

[0002] Traditional ischial-enclosed thigh prostheses rely on static geometry to achieve residual limb fixation and load transfer. While they provide good support during the initial fitting phase, they face numerous challenges during long-term use. Clinical studies have shown that residual limb soft tissue is easily affected by positional changes, muscle contraction, fluctuations in blood circulation, and diurnal volume changes, which can lead to increased internal space within the socket or the formation of local high-pressure points, resulting in pain, skin damage, infection, and even forced discontinuation of the prosthesis.

[0003] Existing solutions mostly focus on passive adjustment mechanisms, such as using silicone bushings or elastic liners, but their applicability is limited and they cannot achieve dynamic response. Summary of the Invention

[0004] To address at least one of the problems in the prior art, the present invention aims to provide a thigh prosthesis socket system based on ischial inclusion and its assembly and initial calibration method, multimodal operation testing method, and emergency venting and maintenance operation method. Addressing the shortcomings of existing ischial inclusion sockets in terms of lack of dynamic adaptation capability, pressure regulation capability, and multimodal control capability, the invention aims to solve the following technical problems: 1. Socket loosening or compression damage caused by residual limb volume fluctuations; 2. Differentiated requirements for interface pressure distribution under different activity modes; 3. Defects of traditional pneumatic systems such as sluggish response, single control, and inconvenient operation; 4. Risk of pressure runaway caused by gas backflow; The invention provides active pressure regulation function, improving wearing comfort, stability, and functionality; eliminates backflow risk, improving control accuracy and safety; and meets the multidimensional mechanical requirements of complex movement scenarios, especially suitable for thigh amputees with posture change requirements.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A thigh prosthesis socket system based on ischial inclusion, characterized in that it comprises: The receiving cavity has an internal cavity for placing the residual limb; the receiving cavity has an inner wall and an outer shell; the inner wall forms a smooth contact interface for direct contact with the residual limb and for fixing the airbag; the outer shell forms a support structure for transferring load to the prosthesis components; The first anchoring airbag is placed on the inner wall of the receiving cavity in the gluteus maximus region to provide support and pressure adjustment for the buttock region and adapt to changes in the shape of the gluteal muscles when sitting. The second anchoring airbag is placed on the inner wall of the receiving cavity in the medial region of the ischial tuberosity and the region of the adductor magnus muscle to enhance the pelvic locking effect and provide stability support when changing between sitting and standing postures. The third anchoring airbag is placed on the inner wall of the receiving cavity in the anterior region of the rectus femoris muscle to inhibit forward sliding of the residual limb and maintain the anterior stability of the receiving cavity during the gait swing phase and mid-standing phase. The fourth airbag is located on the inner wall of the receiving cavity in the region from the upper part of the gluteus maximus to the gluteus medius, and is used to form a load-bearing band and assist in the pressure distribution and dynamic support of the outer thigh. The fifth airbag is located on the inner wall of the receiving cavity in the transition area from the middle and lower part of the gluteus maximus to the vastus lateralis muscle. It is used to form a load-bearing band and assist in the pressure distribution and dynamic support of the outer thigh. The sixth airbag is located on the inner wall of the receiving cavity in the area where the vastus lateralis muscle is stressed, in order to enhance the efficiency of lateral force transmission during walking and standing, and reduce the risk of local high pressure points; The seventh airbag is located on the inner wall of the receiving cavity in the area of ​​excessive force on the vastus lateralis muscle, and is used to enhance the efficiency of lateral force transmission and improve stability during walking and standing. The tracheal concentrator is configured as an integrated interface module located on the outer side of the thigh. The integrated interface module is provided with an interface tube equal in number to the number of airbags. Each interface tube is provided with a self-sealing connector at its outer end, which is used to collect and connect the miniature flexible catheters of each airbag, so as to realize the unified management and connection of the airway. The gas tubing, which is the miniature flexible conduit, has the same number as the total number of all the airbags; each airbag is connected to the corresponding interface tube in the gas concentrator through the gas tubing for gas delivery. An external dual-channel switch has an internal number of three-way pipes equal to the number of interface pipes. The external dual-channel switch is detachably connected to the gas concentrator. After the external dual-channel switch is connected to the gas concentrator, each interface pipe is connected to the first pipe of the corresponding three-way pipe, and each self-sealing connector is opened, connecting the gas pipe to the three-way pipe. When the external dual-channel switch is removed, the self-sealing connector is closed, and the gas pipe is sealed. The third pipes of all the three-way pipes converge at a single port, which is equipped with a sealing knob. The intelligent air collection pump is configured as an external electrically controlled pump assembly; the intelligent air collection pump has a built-in microprocessor and air pump unit; the intelligent air collection pump is provided with an inflation port equal to the number of the interface pipes; the intelligent air collection pump is connected to the external dual-channel switch; each inflation port is connected to the second pipe of the corresponding three-way pipe; the intelligent air collection pump is used to inflate each airbag.

[0006] Preferably, the first anchoring airbag, the fourth airbag, the fifth airbag, the sixth airbag, and the seventh airbag form a U-shaped circumferential load-bearing band.

[0007] Preferably, the first anchoring airbag is configured as one, and the fourth airbag, the fifth airbag, the sixth airbag and the seventh airbag are each configured as two.

[0008] Preferably, the opening of the receiving cavity faces upward, and the opening of the U-shaped surrounding load-bearing band faces downward.

[0009] Preferably, there are two second anchoring airbags, which are respectively located in the medial region of the ischial tuberosity and the adductor magnus region; and one third anchoring airbag.

[0010] Preferably, the receiving cavity shell is configured as an external rigid or semi-rigid support structure.

[0011] A method for assembling and initial calibration of a thigh prosthesis socket system based on ischial containment includes the following steps: All airbags are embedded into the inner wall of the receiving cavity at predetermined positions, so that the contact surfaces of each airbag and the residual limb correspond. Each of the airbags is connected to a respective interface tube of the air tube concentrator through the gas pipeline, and the air tube concentrator is nested and connected to the receiving cavity shell; Connect the intelligent air collection pump and the external dual-channel switch to the air pipe centralization device; The ischial-inclusive thigh prosthesis socket is fitted onto the residual limb, and then the intelligent air pump is activated. The initial fitting mode is selected, so that the system automatically executes the progressive inflation process of each airbag. At the same time, the user's subjective comfort feedback is monitored to determine the baseline pressure value of each airbag.

[0012] A multimodal operational testing method for a thigh prosthesis socket system based on ischial containment includes the following steps: The user sequentially performs actions such as sitting-to-standing transfer, walking on flat ground, and jogging. The control system dynamically adjusts the pressure of the airbags in each area according to the preset program.

[0013] Preferably, when the user is in a sitting position, the pressure of the second anchoring airbag in the medial region of the ischial tuberosity is released first to avoid compression of the sciatic nerve; The user increases the pressure of the second anchoring airbag in the medial region of the ischial tuberosity during the initial standing phase to improve stability; During the middle of the walk, the user increases the pressure of the first anchoring airbag, the fourth airbag, the fifth airbag, the sixth airbag, and the seventh airbag to enhance the support on the posterior thigh and simulate natural load transfer.

[0014] An emergency degassing and maintenance method for a thigh prosthesis socket system based on ischial containment, characterized by comprising the following steps: When the user feels discomfort, they can manually unscrew the sealing knob to release the pressure of all the airbags and achieve emergency detachment of the receiving cavity.

[0015] The present invention has the following advantages due to the adoption of the above technical solutions: 1. The ischial tube-supported thigh prosthesis socket system and its assembly and initial calibration method, multimodal operation testing method, and emergency venting and maintenance operation method provided by this invention, firstly, the distributed airbag structure including the first to seventh airbags achieves full circumferential pressure regulation, significantly improving stability and comfort; secondly, the self-sealing connector in the tracheal concentrator effectively avoids air leakage, improving the system's stability and safety level; thirdly, the multimodal electronically controlled pump supports personalized program settings, allowing users to switch control strategies independently according to their activity status, greatly enhancing applicability and user experience; finally, the modular structure including the socket, individual airbags, tracheal concentrator, gas pipeline, intelligent gas pump, and external dual-path switch facilitates maintenance and upgrades, possessing good industrialization prospects and clinical promotion value.

[0016] 2. The ischial-enclosed thigh prosthesis socket and its system assembly and initial calibration method, multimodal operation testing method, and emergency venting and maintenance operation method provided by this invention can reduce socket loosening or compression damage caused by residual limb volume fluctuations; meet the differentiated needs of interface pressure distribution under different activity modes; solve the defects of existing traditional pneumatic systems such as slow response, single control, and inconvenient operation; avoid the risk of pressure runaway caused by gas backflow; realize pressure regulation of each airbag through intelligent air collection pump, improve wearing comfort, stability and functionality; eliminate backflow risk, improve control accuracy and safety; and meet the multidimensional mechanical needs under complex movement scenarios, especially suitable for thigh amputees with posture change requirements. Attached Figure Description

[0017] Figure 1This is a first-view schematic diagram of the thigh anterior-shaped pressure distribution, illustrating the working principle of the thigh prosthesis socket system based on ischial containment provided in an embodiment of the present invention.

[0018] Figure 2 This is a second-view schematic diagram of the thigh anterior-shaped pressure distribution, illustrating the working principle of the thigh prosthesis socket system based on ischial containment provided in an embodiment of the present invention.

[0019] Figure 3 This is a third-person perspective schematic diagram of the thigh anterior-shaped pressure distribution, illustrating the working principle of the thigh prosthesis socket system based on ischial containment provided in an embodiment of the present invention.

[0020] Figure 4 This is a fourth-angle schematic diagram of the thigh anterior-shaped pressure distribution, illustrating the working principle of the thigh prosthesis socket system based on ischial containment provided in an embodiment of the present invention.

[0021] in, Figures 1 to 4 The red area indicates a location requiring heavy pressure concentration, the orange area indicates a location requiring moderate pressure concentration, and the yellow area indicates a location requiring light pressure concentration.

[0022] Figure 5 This is a first-view three-dimensional diagram of a thigh prosthesis socket system based on ischial containment provided in an embodiment of the present invention.

[0023] Figure 6 This is a second-view three-dimensional diagram of a thigh prosthesis socket system based on ischial containment provided in an embodiment of the present invention.

[0024] Figure 7 This is a three-dimensional view from a third perspective of a thigh prosthesis socket system based on ischial containment provided in an embodiment of the present invention.

[0025] Figure 8 This is a three-dimensional view from a fourth perspective of a thigh prosthesis socket system based on ischial containment provided in an embodiment of the present invention.

[0026] Figure 9 This is a third-dimensional view from the fifth perspective of a thigh prosthesis socket system based on ischial containment provided in an embodiment of the present invention.

[0027] Figure 10 This is a six-dimensional view of a thigh prosthesis socket system based on ischial containment provided in an embodiment of the present invention.

[0028] Figure 11 This is a three-dimensional view of the inner surface of the socket wall of the ischial-enclosed thigh prosthesis socket system provided in an embodiment of the present invention.

[0029] Figure 12This is a three-dimensional view of the outer surface of the socket shell of a thigh prosthesis socket system based on ischial containment provided in an embodiment of the present invention.

[0030] Figure 13 This is a perspective view of the interface tube provided in an embodiment of the present invention.

[0031] Figure 14 This is a schematic diagram of a single tee pipe provided in an embodiment of the present invention.

[0032] Figure 15 This is a flowchart of the assembly and initial calibration method of a thigh prosthesis socket system based on ischial inclusion provided in an embodiment of the present invention.

[0033] Figure 16 This is a flowchart of a multimodal operation test method for a thigh prosthesis socket system based on ischial inclusion, provided by an embodiment of the present invention.

[0034] Figure 17 This is a flowchart of an emergency air venting and maintenance operation method for a thigh prosthesis socket system based on ischial inclusion, provided by an embodiment of the present invention.

[0035] Marked in the attached diagram: 1. First anchoring airbag; 2. Second anchoring airbag; 3. Third anchoring airbag; 4. Fourth airbag; 5. Fifth airbag; 6. Sixth airbag; 7. Seventh airbag; 8. Inner wall of receiving cavity; 9. Outer shell of receiving cavity; 10. Air tube concentrator; 1001. Interface tube; 11. Gas pipeline; 12. Intelligent air collection pump; 13. External dual-channel switch; 1301. Three-way pipeline. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0037] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. The arrow direction in the figure represents the direction of liquid flow.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "assembly," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] This invention provides a thigh prosthesis socket system based on ischial inclusion, along with its assembly and initial calibration methods, multimodal operation testing methods, and emergency venting and maintenance methods. This ischial inclusion-based thigh prosthesis socket achieves circumferential pressure regulation through a distributed airbag structure, improving stability and comfort; it effectively avoids air leakage through a self-sealing connector structure, enhancing system stability and safety; and it supports personalized program settings through a multimodal electronically controlled pump, allowing users to autonomously switch control strategies according to their activity status, greatly enhancing applicability and user experience. Its modular design facilitates maintenance and upgrades, possessing promising industrialization prospects and clinical application value. The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0040] Example 1 Please refer to the reference. Figures 1 to 14 The ischial-enclosed thigh prosthesis socket system provided in this embodiment includes: The receiving cavity has an internal cavity for placing the residual limb; the receiving cavity has an inner wall 8 and an outer shell 9; the inner wall 8 forms a smooth contact interface for direct contact with the residual limb and for fixing the airbag; the outer shell 9 forms a support structure for transmitting load to the prosthesis components; The first anchoring airbag 1 is set on the inner wall 8 of the receiving cavity in the gluteus maximus region to provide support and pressure adjustment for the buttock region and adapt to changes in the shape of the gluteal muscles when sitting. The second anchoring airbag 2 is placed on the inner wall 8 of the receiving cavity in the medial region of the ischial tuberosity and the adductor magnus region to enhance the pelvic locking effect and provide stability support when changing from sitting to standing. The third anchoring airbag 3 is placed on the inner wall 8 of the receiving cavity in the anterior region of the rectus femoris muscle to inhibit forward sliding of the residual limb and maintain the anterior stability of the receiving cavity during the gait swing phase and mid-standing phase. The fourth airbag 4 is located on the inner wall 8 of the receiving cavity in the region from the upper part of the gluteus maximus to the gluteus medius, and is used to form a load-bearing band and assist in the pressure distribution and dynamic support of the outer thigh. The fifth airbag 5 is located on the inner wall 8 of the receiving cavity in the transition area from the middle and lower part of the gluteus maximus to the vastus lateralis muscle. It is used to form a load-bearing band and assist in the pressure distribution and dynamic support of the outer thigh. The sixth airbag 6 is located on the inner wall 8 of the receiving cavity in the force-bearing area of ​​the vastus lateralis muscle. It is used to enhance the efficiency of lateral force transmission during walking and standing, and reduce the risk of local high pressure points. The seventh airbag 7 is located on the inner wall 8 of the receiving cavity in the area of ​​excessive force on the vastus lateralis muscle, and is used to enhance the efficiency of lateral force transmission and improve stability during walking and standing. The tracheal concentrator 10 is configured as an integrated interface module located on the outer side of the thigh. The integrated interface module is equipped with an interface tube 1001 equal to the number of airbags. Each interface tube 1001 is equipped with a self-sealing connector, which is used to collect and connect the miniature flexible tubes of each airbag to realize unified management and connection of the airway. The self-sealing connector can prevent air leakage and pressure runaway.

[0041] Gas tubing 11 is a miniature flexible conduit, the number of which is equal to the total number of all airbags; each airbag is connected to the corresponding interface tube 1001 in the gas concentrator 10 through gas tubing 11 for gas delivery. An external dual-channel switch 13 contains a number of tee pipes 1301 equal to the number of interface pipes 1001. The external dual-channel switch 13 is detached from and connected to the gas concentrator 10. After the external dual-channel switch 13 is connected to the gas concentrator 10, each interface pipe 1001 is connected to the first pipe of the corresponding tee pipe 1301, and each self-sealing joint is opened, connecting the gas pipe 11 to the tee pipe 1301. When the external dual-channel switch 13 is removed, the self-sealing joints are closed, and the gas pipe 11 is sealed. The third pipes of all tee pipes 1301 converge. All connections are concentrated at a single port, which is equipped with a sealing knob. A sealing baffle is installed inside this port of the external dual-channel switch 13. The sealing baffle has an number of interfaces equal to the number of T-connectors 1301, and the third pipe of each T-connector 1301 is connected to this interface. When the sealing knob is tightened at this port, it makes tight contact with the sealing baffle, sealing the outlet of the third pipe of all T-connectors 1301. When the sealing knob is loosened and removed from this port, it disengages from the sealing baffle, allowing for venting of the third pipe of all T-connectors 1301. A soft sealing sheet can be provided on the inner end face of the sealing knob to better maintain a good seal with the sealing baffle.

[0042] The intelligent air pump 12 is configured as an external electrically controlled pump assembly. The intelligent air pump 12 has a built-in microprocessor and air pump unit. The intelligent air pump 12 has an equal number of inflation ports as the interface pipe 1001. The intelligent air pump 12 is connected to an external dual-path switch 13, and each inflation port is connected to the second pipe of the corresponding three-way pipe 1301. The intelligent air pump 12 is used to inflate each airbag, achieving dynamic adjustment of the pressure of each airbag and improving the accuracy of airbag pressure adjustment. The ischial-inclusive thigh prosthesis socket of this embodiment constitutes an electrically adjustable ischial-inclusive socket system based on a distributed array of airbags, from the first anchoring airbag 1 to the seventh airbag 7. The socket shell 9 is disposed outside the socket inner wall 8 and serves to modify the external shape of the socket. The airbags are arranged according to anatomical functional zones: two second anchoring airbags 2 can be placed on the medial side of the ischial tuberosity and the adductor magnus region to enhance the pelvic locking effect; a third anchoring airbag 3 can be placed on the anterior side of the rectus femoris muscle for forward stabilization; the remaining nine airbags can be arranged in a U-shape around the gluteus maximus and vastus lateralis regions, forming a wide-area load-bearing band. All airbags are led out through gas tubing 11 and the interface tube 1001 of the tracheal concentrator 10. Each interface tube 1001 of the tracheal concentrator 10 has a built-in self-sealing connector to prevent reverse leakage. The external dual-channel switch 13 can be connected to the airway concentrator 10 via a quick-release structure, which can be a quick-release nut structure as in existing technology, enabling rapid assembly and disassembly of both. The intelligent air pump 12 can be configured as an electrically controlled pump with a built-in microprocessor. The intelligent air pump 12 is existing technology and can be preset with multiple working modes, including standing, sitting, walking on flat ground, going up and down slopes, and running. Each working mode corresponds to a specific inflation sequence, target pressure value, and time delay parameters for each airbag, achieving precise dynamic pressure matching. The intelligent air pump 12 is fixedly connected to the external dual-channel switch 13, enabling rapid connection between both and the airway concentrator 10. This embodiment of the ischial-inclusive thigh prosthesis socket employs a locally adjustable airbag pressure compensation structure, including a first anchoring airbag 1 to a seventh airbag 7. This enhances the modularity and programmable pressure management capabilities of the socket, meeting the multidimensional mechanical requirements of complex movement scenarios. By incorporating a highly efficient gas path isolation mechanism, including a central airway device 10, gas tubing 11, an intelligent air pump 12, and an external dual-path switch 13, the risk of air leakage and pressure loss is eliminated, improving control accuracy and safety. This ischial-inclusive thigh prosthesis socket, as an ischial-inclusive socket system with active pressure regulation, is particularly suitable for thigh amputees requiring postural changes. The ischial-inclusive thigh prosthesis socket system of this embodiment, through the integration of a multi-channel pneumatic control structure, achieves pressure regulation at the socket-residual limb interface, improving wearing comfort, stability, and functionality. It can be widely applied in lower limb prosthesis design, human-machine interface optimization, and the development of personalized rehabilitation assistive devices.

[0043] Please refer to the reference. Figures 9 to 11 Specifically, the first anchoring airbag 1, the fourth airbag 4, the fifth airbag 5, the sixth airbag 6, and the seventh airbag 7 form a U-shaped surrounding load-bearing band.

[0044] Please refer to the reference. Figures 5 to 12 Specifically, the opening of the receiving cavity faces upward, while the opening of the U-shaped surrounding load-bearing band faces downward.

[0045] Please refer to the reference. Figures 9 to 11 Specifically, the first anchoring airbag 1 is set to one, and the fourth airbag 4, the fifth airbag 5, the sixth airbag 6 and the seventh airbag 7 are each set to two.

[0046] Specifically, there are two second anchoring airbags 2, which are respectively located in the medial region of the ischial tuberosity and the adductor magnus region; and one third anchoring airbag 3.

[0047] Specifically, two anchoring airbags are placed on the medial side of the ischial tuberosity and the adductor magnus area to enhance the pelvic locking effect; one forward stabilizing airbag is placed on the anterior side of the rectus femoris; and the remaining nine airbags are distributed in a U-shape around the gluteus maximus and vastus lateralis areas to form a wide-area load-bearing band.

[0048] Please refer to the reference. Figures 5 to 10 Specifically, the receiving cavity shell 9 is configured as an external rigid or semi-rigid support structure to fix the layout of each airbag, fix the passage of the gas pipeline 11, transfer the load to the prosthetic components, and provide the overall structural integrity of the system.

[0049] The receiving cavity shell 9 can be made of carbon fiber, resin-mixed polyester fiber or plastic.

[0050] Please refer to the reference. Figures 9 to 12Specifically, each airbag can be positioned on the inner surface of the inner wall 8 of the receiving cavity. A cavity is formed between the inner wall 8 and the outer shell 9 of the receiving cavity, i.e., the receiving cavity is configured as a double-walled structure to conceal the tubing of each airbag. The inner wall 8 of the receiving cavity has openings, the number of which can be equal to the number of gas tubing 11 connected to each airbag. Each gas tubing 11 passes through one opening and extends into the cavity between the inner wall 8 and the outer shell 9 of the receiving cavity, and then connects to the interface pipe 1001 of the air tubing concentrator 10 located on the outer shell 9 of the receiving cavity.

[0051] In this embodiment, the ischial-enclosed thigh prosthesis socket has an ischial-enclosed structure for the first to third anchoring airbags 1 to 3. These airbags are designed to limit the movement of the patient's ischium, femur, and lateral femoral muscles, respectively, and in addition to clamping the residual limb, they also prevent limb dislodgement. The fourth to seventh airbags 4 work in conjunction with the first to third anchoring airbags 3 to assist in clamping the residual limb and controlling its movement posture.

[0052] Each airbag is embedded and connected to the inner wall 8 of the receiving cavity. The fabrication process of the inner wall 8 of the receiving cavity is as follows: First, a male prosthesis is made using the patient's residual leg; then, plaster is poured from the male prosthesis to create the female prosthesis. Figure 1-4 As shown, then mark the points on the male prosthesis and grind them to determine the position of each airbag, and the tubing of each airbag can be set in the gap between the inner wall 8 of the receiving cavity and the outer shell 9 of the receiving cavity.

[0053] Example 2 Please refer to the reference. Figures 9 to 15 A system assembly and initial calibration method for a thigh prosthesis socket based on ischial tuberosity, as described in Embodiment 1, includes the following steps: Step S11: Embed all airbags into the inner wall 8 of the connection receiving cavity according to the predetermined position, so that the contact surfaces of each airbag and the residual limb correspond; ensure that the key contact surfaces of each airbag and the residual limb correspond precisely. Step S12: Connect each airbag to each interface tube 1001 of the air concentrator 10, which is connected to the air concentrator 10 via the gas pipeline 11, and nest the air concentrator 10 to the receiving cavity shell 9. Step S13 connects the intelligent air collecting pump 12 and the external dual-channel switch 13 to the air pipe central device 10; Step S14: Place the ischial-inclusive thigh prosthesis socket onto the residual limb, then start the intelligent air pump 12, select the initial fitting mode, so that the system automatically executes the progressive inflation process of each airbag; at the same time, monitor the user's subjective comfort feedback and determine the baseline pressure value of each airbag.

[0054] Example 3 Please refer to the reference. Figures 9 to 12 and Figure 17 A multimodal operational testing method for a thigh prosthesis socket based on ischial inclusion, as described in Embodiment 1, includes the following steps: Step S21: The user sequentially performs the actions of sitting-to-standing transfer, walking on flat ground, and jogging. The control system dynamically adjusts the pressure of the airbags in each area according to the preset program.

[0055] The pressure limit value of each airbag can be set, which can include the limit relaxation pressure value and the limit clamping mode pressure value.

[0056] Specifically, step S21 includes: Step S211: When the user is in a sitting position, first release the pressure of the second anchoring airbag 2 in the medial region of the ischial tuberosity to avoid compressing the sciatic nerve; Step S212: The user increases the pressure of the second anchoring airbag 2 in the medial region of the ischial tuberosity during the initial standing phase to improve stability; Step S213: During the middle of walking, the user increases the pressure of the first anchoring airbag 1, the fourth airbag 4, the fifth airbag 5, the sixth airbag 6 and the seventh airbag 7 to enhance the support on the posterior thigh and simulate natural load transfer.

[0057] Example 4 Please refer to the reference. Figures 1 to 12 and Figure 15 An emergency air venting and maintenance method for a thigh prosthesis socket based on ischial tuberosity, as described in Embodiment 1, includes the following steps: Step S31: When the user feels discomfort, the pressure of all airbags is released by unscrewing the sealing knob, thus achieving emergency detachment of the receiving chamber.

[0058] The individual airbags can also be vented by the intelligent air pump 12. Alternatively, by removing the external dual-channel switch 13 and using a tool to open the self-sealing interfaces on the various interface pipes 1001 inside the air pipe central device 10, the airbags can be vented directly, and the pressure of each airbag can be adjusted.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thigh prosthesis socket system based on ischial containment, characterized in that, include: The receiving cavity has an internal cavity for placing the residual limb; the receiving cavity has an inner wall (8) and an outer shell (9); the inner wall (8) forms a smooth contact interface for direct contact with the residual limb and for fixing the airbag; the outer shell (9) forms a support structure for transmitting load to the prosthesis components; The first anchoring airbag (1) is set on the inner wall (8) of the receiving cavity in the gluteus maximus region to provide support and pressure adjustment for the buttock region and adapt to the changes in the shape of the buttock muscles when sitting. The second anchoring airbag (2) is placed on the inner wall (8) of the receiving cavity in the medial region of the ischial tuberosity and the adductor magnus region to enhance the pelvic locking effect and provide stability support when changing from sitting to standing posture. The third anchoring airbag (3) is placed on the inner wall (8) of the receiving cavity in the anterior region of the rectus femoris muscle to inhibit forward sliding of the residual limb and maintain the anterior stability of the receiving cavity during the gait swing phase and mid-standing phase. The fourth airbag (4) is set on the inner wall (8) of the receiving cavity in the region from the upper part of the gluteus maximus to the gluteus medius, and is used to form a load-bearing band and assist in the pressure distribution and dynamic support of the outer thigh. The fifth airbag (5) is located on the inner wall (8) of the receiving cavity in the transition area from the middle and lower part of the gluteus maximus to the vastus lateralis muscle. It is used to form a load-bearing band and assist in realizing the pressure distribution and dynamic support on the outer thigh. The sixth airbag (6) is placed on the inner wall (8) of the receiving cavity in the area of ​​the vastus lateralis muscle, which is used to enhance the efficiency of lateral force transmission during walking and standing, and reduce the risk of local high pressure points; The seventh airbag (7) is located on the inner wall (8) of the receiving cavity in the area of ​​excessive force on the vastus lateralis muscle, and is used to enhance the efficiency of lateral force transmission during walking and standing, and improve stability; The tracheal concentrator (10) is configured as an integrated interface module located on the outer side of the thigh. The integrated interface module is provided with an interface tube (1001) equal in number to the number of airbags. Each interface tube (1001) is provided with a self-sealing connector at its outer end, which is used to collect and connect the miniature flexible conduits of each airbag, so as to realize the unified management and connection of the airway. The gas pipeline (11) is the miniature flexible conduit, and its number is equal to the total number of each airbag; each airbag is connected to the corresponding interface tube (1001) in the gas concentrator (10) through the gas pipeline (11) for gas delivery; An external dual-channel switch (13) is provided with a number of three-way pipes (1301) equal to the number of interface pipes (1001). The external dual-channel switch (13) is detachably connected to the gas concentrator (10). After the external dual-channel switch (13) is connected to the gas concentrator (10), each interface pipe (1001) is connected to the first pipe of the corresponding three-way pipe (1301), each self-sealing joint is opened, and the gas pipe (11) is connected to the three-way pipe (1301). When the external dual-channel switch (13) is removed, the self-sealing joint is closed, and the gas pipe (11) is sealed. The third pipes of all the three-way pipes (1301) converge to a port, and the port is provided with a sealing knob. The intelligent air pump (12) is configured as an external electrically controlled pump assembly; the intelligent air pump (12) has a built-in microprocessor and air pump unit; the intelligent air pump (12) is provided with an number of inflation ports equal to the number of interface pipes (1001); the intelligent air pump (12) is connected to the external dual-channel switch (13); each inflation port is connected to the second pipe of the corresponding three-way pipe (1301); the intelligent air pump (12) is used to inflate each airbag.

2. The thigh prosthesis socket system based on ischial tuberosity as described in claim 1, characterized in that, The first anchoring airbag (1), the fourth airbag (4), the fifth airbag (5), the sixth airbag (6) and the seventh airbag (7) form a U-shaped surrounding load-bearing belt.

3. The thigh prosthesis socket system based on ischial tuberosity as described in claim 2, characterized in that, The first anchoring airbag (1) is set to one, and the fourth airbag (4), the fifth airbag (5), the sixth airbag (6) and the seventh airbag (7) are each set to two.

4. The thigh prosthesis socket system based on ischial tuberosity as described in claim 2, characterized in that, The opening of the receiving cavity faces upward, and the opening of the U-shaped surrounding load-bearing band faces downward.

5. The thigh prosthesis socket system based on ischial tuberosity as described in claim 1, characterized in that, The second anchoring airbag (2) is configured as two, and is respectively located in the medial region of the ischial tuberosity and the adductor magnus region; the third anchoring airbag (3) is configured as one.

6. The thigh prosthesis socket system based on ischial containment according to claim 1, characterized in that, The receiving cavity shell (9) is configured as an external rigid or semi-rigid support structure.

7. A method for assembling and initial calibration of a thigh prosthesis socket system based on ischial inclusion as described in any one of claims 1-6, characterized in that, Includes the following steps: All airbags are embedded into the inner wall (8) of the receiving cavity according to the predetermined position, so that the contact surfaces of each airbag and the residual limb correspond to each other; Each of the airbags is connected to a port tube (1001) of the air concentrator (10) via the gas line (11), and the air concentrator (10) is nested and connected to the receiving cavity shell (9). Connect the intelligent air collecting pump (12) and the external dual-channel switch (13) to the air pipe central device (10); The ischial-inclusive thigh prosthesis socket is fitted onto the residual limb, and then the intelligent air pump (12) is started. The initial fitting mode is selected so that the system automatically executes the progressive inflation process of each airbag. At the same time, the user's subjective comfort feedback is monitored to determine the baseline pressure value of each airbag.

8. A multimodal operational testing method for a thigh prosthesis socket system based on ischial inclusion as described in any one of claims 1-6, characterized in that, Includes the following steps: The user sequentially performs actions such as sitting-to-standing transfer, walking on flat ground, and jogging. The control system dynamically adjusts the pressure of the airbags in each area according to the preset program.

9. The multimodal operational testing method for the ischial-containing thigh prosthesis socket system according to claim 8, characterized in that, When the user is in a sitting position, the pressure of the second anchoring airbag (2) in the medial region of the ischial tuberosity is released first to avoid compressing the sciatic nerve; The user increases the pressure of the second anchoring airbag (2) in the medial region of the ischial tuberosity during the initial standing phase to improve stability; During the middle of walking, the user increases the pressure of the first anchoring airbag (1), the fourth airbag (4), the fifth airbag (5), the sixth airbag (6), and the seventh airbag (7) to enhance the support on the posterior thigh and simulate natural load transfer.

10. An emergency air venting and maintenance method for a thigh prosthesis socket system based on ischial inclusion as described in any one of claims 1-6, characterized in that, Includes the following steps: When the user feels discomfort, they can manually unscrew the sealing knob to release the pressure of all the airbags and achieve emergency detachment of the receiving cavity.

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