Implantable upper limb prosthesis for hand replacement and use method

Abstract

The invention relates to the technical field of upper limb prostheses, in particular to an implantable upper limb prosthesis for hand replacement and a using method.The implantable upper limb prosthesis comprises a humerus prosthesis and an ulna prosthesis, the two end faces of the humerus prosthesis and the ulna prosthesis are each provided with a multi-axis connecting structure for fixation, and an automatic adjusting air bag cushion is arranged between the joint faces of the humerus prosthesis and the ulna prosthesis; the automatic adjusting air bag cushion comprises a first air bag, a first automatic inflation and deflation structure, a second air bag and a second automatic inflation and deflation structure, the multi-shaft connecting structure comprises a synchronous connecting rod, a first bent connecting rod and a second bent connecting rod, and the humerus prosthesis comprises a humerus supporting rod and a humerus joint rotating block. The ulna prosthesis comprises an ulna supporting rod and an ulna rotating block. The gap between the ulna prosthesis and the humerus prosthesis can be properly adjusted by automatically adjusting the air bag cushion, so that the phenomenon of swinging distortion or abrasion of a binding surface is avoided, the requirements of a user can be met, and many troubles cannot be brought to the user.

Description

Technical Field

[0001] The present invention relates to an implantable upper limb prosthesis for hand replacement and a use method, in particular to an implantable upper limb prosthesis for hand replacement and a use method, belonging to the technical field of upper limb prosthesis. Background Art

[0002] Prosthesis refers to a replacement limb made by means and methods of engineering technology. It is an artificial prosthesis specially designed, manufactured and assembled to compensate for amputees or incomplete limb defects. It is also called "prosthetic limb". Its main function is to replace part of the functions of the lost limbs and restore a certain degree of self-care and work ability for amputees. It is suitable for amputees due to diseases, traffic accidents, industrial accidents, sports injuries, etc.

[0003] However, in the existing upper limb prosthesis, a certain gap is often designed between the ulnar prosthesis and the humeral prosthesis in the elbow joint prosthesis, so that the ulnar prosthesis and the humeral prosthesis can swing while being connected. If the gap between the ulnar prosthesis and the humeral prosthesis is large, the elbow joint prosthesis will swing more and be distorted. If the gap between the ulnar prosthesis and the humeral prosthesis is small, the fitting surface of the elbow joint prosthesis will be greatly worn, thereby failing to meet the user's requirements, and causing many troubles to the user.

[0004] Therefore, there is an urgent need for an implantable upper limb prosthesis for hand replacement and a method of use to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide an implantable upper limb prosthesis for hand replacement and a method of use. The device can appropriately adjust the gap between the ulnar prosthesis and the humeral prosthesis by automatically adjusting the airbag cushion to ensure that there will be no swing distortion or wear of the fitting surface, thereby meeting the user's requirements and not causing many troubles to the user.

[0006] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the present invention includes: a humeral prosthesis and an ulnar prosthesis, wherein both end surfaces of the humeral prosthesis and the ulnar prosthesis are fixedly connected by a multi-axial connection structure, an automatically adjustable airbag cushion is arranged between the joint surface of the humeral prosthesis and the ulnar prosthesis, the automatically adjustable airbag cushion includes a first airbag embedded in the joint surface of the humeral prosthesis, a first automatic inflation and deflation structure symmetrically connected and arranged above the first airbag, a second airbag embedded in the joint surface of the ulnar prosthesis and a second automatic inflation and deflation structure symmetrically connected and arranged above the second airbag, the multi-axial connection structure includes a synchronous connecting rod, a first curved connecting rod rotatably connected to one end of the synchronous connecting rod, and a second curved connecting rod rotatably connected to the other end of the synchronous connecting rod, the humeral prosthesis includes a humeral support rod and a humeral joint rotation block arranged on the humeral support rod near one end surface of the ulnar prosthesis, and the ulnar prosthesis includes an ulnar support rod and an ulnar joint rotation block arranged on the ulnar support rod near one end surface of the humeral prosthesis.

[0007] Preferably, a plurality of first T-shaped embedding grooves are provided on the joint surface of the humeral joint transfer block, and a plurality of first T-shaped embedding blocks adapted to the first T-shaped embedding grooves are provided on the contact surface of the first airbag with the joint surface of the humeral joint transfer block, and both ends of the first airbag are fixed to the edges of the upper end surface of the humeral joint transfer block by bolts, and the first airbag is provided with rubber limit strips at the edges of both end surfaces of the contact surface with the second airbag.

[0008] Preferably, a plurality of second T-shaped snap-in grooves are provided on the joint surface of the ulnar joint pivot block, and a plurality of second T-shaped snap-in blocks adapted to the second T-shaped snap-in grooves are provided on the contact surface of the second airbag with the joint surface of the ulnar joint pivot block, and both ends of the second airbag are fixed to the edge of the upper end surface of the ulnar joint pivot block by bolts.

[0009] Preferably, the first automatic inflation and deflation structure includes a first compressed gas tank, a first connecting pipe connected to the lower surface of the first compressed gas tank, a first exhaust air pump connected to the lower port of the first connecting pipe, a second connecting pipe connected to the first exhaust air pump, and a first ball valve arranged on the second connecting pipe.

[0010] Preferably, the second automatic inflation and deflation structure includes a second compressed gas tank, a third connecting pipe connected to the lower surface of the second compressed gas tank, a second exhaust air pump connected to the lower port of the third connecting pipe, a fourth connecting pipe connected to the second exhaust air pump, and a second ball valve arranged on the fourth connecting pipe.

[0011] Preferably, the first compressed air tank and the first suction and discharge air pump are both fixed to the humeral support rod by bolts, the second connecting tube is connected to the first airbag, the second compressed air tank and the second suction and discharge air pump are both fixed to the ulna support rod by bolts, and the fourth connecting tube is connected to the second airbag.

[0012] Preferably, the first curved connecting rod includes a first rotating base rotatably connected to the humeral joint rotation block, a first telescopic rod hinged on the first rotating base, a second rotating base rotatably connected to the ulnar joint rotation block, a second telescopic rod hinged on the second rotating base, and a first connecting block hinged at the telescopic ends of the first telescopic rod and the second telescopic rod.

[0013] Preferably, the second curved connecting rod includes a third rotating base rotatably connected to the humeral joint rotation block, a third telescopic rod hinged on the third rotating base, a fourth rotating base rotatably connected to the ulnar joint rotation block, a fourth telescopic rod hinged on the fourth rotating base, and a second connecting block hinged on the telescopic ends of the third telescopic rod and the fourth telescopic rod.

[0014] Preferably, the first telescopic rod is hinged on the first rotating base by bolts, the second telescopic rod is hinged on the second rotating base by bolts, the third telescopic rod is hinged on the third rotating base by bolts, the fourth telescopic rod is hinged on the fourth rotating base by bolts, and the synchronous connecting rod consists of two connecting plates which are rotatably connected to both sides of the first connecting block and the second connecting block respectively.

[0015] Preferably, an implantable upper limb prosthesis for hand replacement and a method of use include the following steps:

[0016] S1. When using the device, the humeral prosthesis should be removed first, and then the first air bag should be mounted on the humeral joint rotation block through the first T-shaped mounting block. At this time, it should be ensured that the first T-shaped mounting block is mounted in the first T-shaped mounting groove, and then the first extraction and discharge air pump should be fixedly mounted on the humeral support rod by bolts, and at the same time, the first compressed air tank should be fixedly mounted on the humeral support rod by bolts;

[0017] S2, then take out the ulnar prosthesis, and then install the second air bag on the ulnar joint rotating block through the second T-shaped clamping block. At this time, make sure that the second T-shaped clamping block is clamped in the second T-shaped clamping groove, and then fix the second extraction and discharge air pump on the ulnar support rod by bolts, and at the same time, fix the second compressed air tank on the ulnar support rod by bolts;

[0018] S3, at this time, the first telescopic rod is fixedly hinged on the first rotating base by bolts, and then the second telescopic rod is fixedly hinged on the second rotating base by bolts, and then the third telescopic rod is fixedly hinged on the third rotating base by bolts, and then the fourth telescopic rod is fixedly hinged on the fourth rotating base by bolts, and then the humeral prosthesis and the ulnar prosthesis can be rotatably connected together through the multi-axis connection structure, so that the mutual linkage between the humeral prosthesis and the ulnar prosthesis can be realized;

[0019] S4. When the device is in operation, the first exhaust air pump starts to operate, and then the first ball valve is opened, and then the gas in the first compressed gas tank will quickly flow into the first air bag, and then the first air bag can be filled, and then the first ball valve is closed. At the same time, the second exhaust air pump also starts to operate, and then the second ball valve is opened, and then the gas in the second compressed gas tank will quickly flow into the second air bag, and then the second air bag can be filled, and then the second ball valve is closed;

[0020] S5. This can fill the swinging space left between the humeral prosthesis and the ulnar prosthesis. When the humeral prosthesis and the ulnar prosthesis need to swing to a certain degree, the first ball valve can be opened, and then the first suction air pump starts to operate and pumps the gas in the first airbag back into the first compressed air tank, and then the first ball valve is closed. At the same time, the second ball valve can be opened, and then the second suction air pump starts to operate and pumps the gas in the second airbag back into the first compressed air tank, and then the second ball valve is closed. This can reduce the friction between the first airbag and the second airbag, so that the swinging degree between the humeral prosthesis and the ulnar prosthesis can be regulated. At the same time, the first airbag and the second airbag can also protect the humeral joint swivel block and the ulnar joint swivel block to prevent wear of the humeral joint swivel block and the ulnar joint swivel block.

[0021] The present invention has at least the following beneficial effects:

[0022] 1. The invention can automatically adjust the gap between the ulnar prosthesis and the humeral prosthesis by the cooperation between the first airbag, the first automatic inflation and deflation structure, the second airbag and the second automatic inflation and deflation structure in the airbag cushion, so as to ensure that there will be no swing distortion or wear of the fitting surface, thereby meeting the requirements of the user and not causing many troubles to the user.

[0023] 2. The invention can make the synchronous rotation connection between the humeral prosthesis and the ulna prosthesis more stable through the cooperation between the first curved connecting rod, the second curved connecting rod and the synchronous connecting rod in the multi-axis connection structure. At the same time, multiple structures should be linked, so that each structure is evenly stressed, thereby making the connection structure more stable and having a longer service life.

[0024] 3. The invention can prevent the first airbag from shifting on the humeral joint rotation block by the mutual cooperation between the first T-shaped embedding groove and the first T-shaped embedding block, and can also prevent the second airbag from shifting on the ulnar joint rotation block by the mutual cooperation between the second T-shaped embedding groove and the second T-shaped embedding block, thereby making the device more stable and reducing the damage rate of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the automatic adjustment airbag cushion of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the humeral prosthesis and the ulna prosthesis of the present invention;

[0029] Figure 4 It is a schematic diagram of the humeral prosthesis and external attachment structure of the present invention;

[0030] Figure 5 It is a schematic diagram of the ulna prosthesis and external attachment structure of the present invention;

[0031] Figure 6 It is a schematic diagram of the overall structure of the multi-axis connection of the present invention;

[0032] Figure 7 It is a schematic diagram of the specific structure of the multi-axis connection of the present invention;

[0033] Figure 8 It is a schematic diagram of the inner side of a half-section of the automatic adjusting airbag cushion of the present invention;

[0034] Fig. 9 It is a schematic diagram of the outer side of a half-section of the automatically adjustable airbag cushion of the present invention.

[0035] In the figure, 1, humeral prosthesis; 2, ulnar prosthesis; 3, multi-axis connection structure; 4, automatic adjustment airbag cushion; 5, first airbag; 6, first automatic inflation and deflation structure; 7, second airbag; 8, second automatic inflation and deflation structure; 9, synchronous connecting rod; 10, first curved connecting rod; 11, humeral joint rotation block; 12, humeral support rod; 13, ulnar support rod; 14, ulnar joint rotation block; 15, first T-shaped card embedding groove; 16, first T-shaped card embedding block; 17, second T-shaped card embedding groove; 18, second T-shaped card embedding block; 19, first compressed gas tank; 20, first connecting pipe; 21. The first extraction and discharge air pump; 22. The second connecting pipe; 23. The first ball valve; 24. The second compressed air tank; 25. The third connecting pipe; 26. The second extraction and discharge air pump; 27. The fourth connecting pipe; 28. The first rotating base; 29. ​​The first telescopic rod; 30. The second rotating base; 31. The second telescopic rod; 32. The first connecting block; 33. The third rotating base; 34. The third telescopic rod; 35. The fourth rotating base; 36. The fourth telescopic rod; 37. The second connecting block; 38. The rubber limit strip; 39. The second ball valve; 40. The connecting plate; 41. The second curved connecting rod. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] like Figure 1-Figure 9 As shown, this embodiment provides an implantable upper limb prosthesis for hand replacement and an embodiment of a method of use.

[0038] The invention comprises a humeral prosthesis 1 and an ulnar prosthesis 2, both end surfaces of the humeral prosthesis 1 and the ulnar prosthesis 2 are fixedly connected by a multi-axial connection structure 3, an automatically adjustable airbag cushion 4 is arranged between the joint surfaces of the humeral prosthesis 1 and the ulnar prosthesis 2, the automatically adjustable airbag cushion 4 comprises a first airbag 5 embedded in the joint surface of the humeral prosthesis 1, a first automatic inflation and deflation structure 6 symmetrically connected and arranged above the first airbag 5, a second airbag 7 embedded in the joint surface of the ulnar prosthesis 2, and a second automatic inflation and deflation structure 8 symmetrically connected and arranged above the second airbag 7, the multi-axial connection structure 3 comprises a synchronous connecting rod 9, a first curved connecting rod 10 rotatably connected to one end of the synchronous connecting rod 9, and a first curved connecting rod 10 rotatably connected to the synchronous connecting rod 9. A second curved connecting rod 41 is provided at the other end of the rod 9, the humeral prosthesis 1 comprises a humeral support rod 12 and a humeral joint rotation block 11 arranged on the humeral support rod 12 near one end surface of the ulnar prosthesis 2, the ulnar prosthesis 2 comprises an ulnar support rod 13 and an ulnar joint rotation block 14 arranged on the ulnar support rod 13 near one end surface of the humeral prosthesis 1, the humeral prosthesis 1 and the ulnar prosthesis 2 are convenient for supporting the prosthesis, and at the same time, the prosthesis can be swung to a certain extent, thereby making the prosthesis more vivid and appropriate, the multi-axis connection structure 3 is convenient for rotating and connecting the humeral prosthesis 1 and the ulnar prosthesis 2 together, and the automatic adjustment airbag cushion 4 is convenient for filling the gap between the humeral prosthesis 1 and the ulnar prosthesis 2 after they are rotated and connected together , so that the interface between the humeral joint transfer block 11 and the ulnar joint transfer block 14 is protected, and the swing degree between the rotation of the humeral prosthesis 1 and the ulnar prosthesis 2 can be adjusted by automatically adjusting the self-adjustment of the airbag cushion 4. The first airbag 5 is convenient for wrapping the humeral joint transfer block 11, and is convenient for protecting the humeral joint transfer block 11. The first automatic inflation and deflation structure 6 is convenient for automatically inflating the first airbag 5, and the second airbag 7 is convenient for wrapping the ulnar joint transfer block 14, and is convenient for protecting the humeral joint transfer block 11. The second automatic inflation and deflation structure 8 is convenient for automatically inflating the second airbag 7. At the same time, the first airbag 5 and the second airbag 7 cooperate with each other to realize automatic adjustment of the airbag. The pad 4 fills the gap between the humeral prosthesis 1 and the ulnar prosthesis 2. The synchronous connecting rod 9 facilitates the rotational connection of the first curved connecting rod 10 and the second curved connecting rod 41 together, so that the first curved connecting rod 10 and the second curved connecting rod 41 can move synchronously. The first curved connecting rod 10 and the second curved connecting rod 41 facilitate the multi-axis rotational connection of the humeral prosthesis 1 and the ulnar prosthesis 2 together. The humeral support rod 12 facilitates the connection and fixation of the humeral joint rotation block 11. The ulnar support rod 13 facilitates the connection and fixation of the ulnar joint rotation block 14. The humeral joint rotation block 11 and the ulnar joint rotation block 14 facilitate the rotational connection between the humeral prosthesis 1 and the ulnar prosthesis 2.

[0039] In this embodiment, Figure 2 , Figure 3 , Figure 4 , Figure 8 as well as Fig. 9 As shown, a plurality of first T-shaped embedding grooves 15 are provided on the joint surface of the humeral joint transfer block 11, and a plurality of first T-shaped embedding blocks 16 adapted to the first T-shaped embedding grooves 15 are provided on the contact surface of the first airbag 5 with the joint surface of the humeral joint transfer block 11. The two ends of the first airbag 5 are fixed to the edge of the upper end surface of the humeral joint transfer block 11 by bolts, and the first airbag 5 is provided with rubber limiting strips 38 at the edges of the two end surfaces of the contact surface with the second airbag 7. The first T-shaped embedding grooves 15 and the first T-shaped embedding blocks 16 facilitate the embedding and fixing of the first airbag 5 on the joint surface of the humeral joint transfer block 11, thereby preventing the first airbag 5 from sliding away from the joint surface of the humeral joint transfer block 11 during operation, and the rubber limiting strip 38 facilitates the limiting of the second airbag 7.

[0040] In this embodiment, Figure 2 , Figure 3 , Figure 5 , Figure 8 as well as Fig. 9 As shown, a plurality of second T-shaped snap-in grooves 17 are provided on the joint surface of the ulnar joint pivot block 14, and a plurality of second T-shaped snap-in blocks 18 adapted to the second T-shaped snap-in grooves 17 are provided on the contact surface of the second airbag 7 with the joint surface of the ulnar joint pivot block 14. Both ends of the second airbag 7 are fixed to the edge of the upper end surface of the ulnar joint pivot block 14 by bolts. The second T-shaped snap-in grooves 17 and the second T-shaped snap-in blocks 18 facilitate snapping and fixing the second airbag 7 on the joint surface of the ulnar joint pivot block 14.

[0041] In this embodiment, Figure 2 , Figure 4 , Figure 8 as well as Fig. 9 As shown, the first automatic inflation and deflation structure 6 includes a first compressed gas tank 19, a first connecting pipe 20 connected to the lower surface of the first compressed gas tank 19, a first exhaust air pump 21 connected to the lower end of the first connecting pipe 20, a second connecting pipe 22 connected to the first exhaust air pump 21, and a first ball valve 23 arranged on the second connecting pipe 22. The first compressed gas tank 19 is convenient for storing compressed gas, the first connecting pipe 20 is convenient for connecting the first compressed gas tank 19 with the first exhaust air pump 21, the first exhaust air pump 21 is convenient for extracting the compressed gas in the first compressed gas tank 19 into the first air bag 5, or extracting the compressed gas in the first air bag 5 back into the first compressed gas tank 19, the second connecting pipe 22 is convenient for connecting the first exhaust air pump 21 with the first air bag 5, and the first ball valve 23 is convenient for closing or opening the second connecting pipe 22, so as to prevent the gas in the first air bag 5 from being squeezed and flowing back into the first compressed gas tank 19.

[0042] In this embodiment, Figure 2 , Figure 5 , Figure 8 as well as Fig. 9As shown, the second automatic inflation and deflation structure 8 includes a second compressed gas tank 24, a third connecting pipe 25 connected to the lower surface of the second compressed gas tank 24, a second exhaust air pump 26 connected to the lower end of the third connecting pipe 25, a fourth connecting pipe 27 connected to the second exhaust air pump 26, and a second ball valve 39 arranged on the fourth connecting pipe 27. The second compressed gas tank 24 is convenient for storing compressed gas, the third connecting pipe 25 is convenient for connecting the second compressed gas tank 24 with the second exhaust air pump 26, the second exhaust air pump 26 is convenient for pumping the compressed gas in the second compressed gas tank 24 into the second air bag 7, or pumping the compressed gas in the second air bag 7 back into the second compressed gas tank 24, the fourth connecting pipe 27 is convenient for connecting the second exhaust air pump 26 with the second air bag 7, and the second ball valve 39 is convenient for closing or opening the fourth connecting pipe 27, so as to prevent the gas in the second air bag 7 from being squeezed and flowing back into the second compressed gas tank 24.

[0043] In this embodiment, Figure 1 , Figure 4 , Figure 8 as well as Fig. 9 As shown, the first compressed air tank 19 and the first suction and discharge air pump 21 are both fixed to the humeral support rod 12 by bolts, the second connecting tube 22 is connected to the first air bag 5, so as to facilitate the first automatic inflation and deflation structure 6 to be fixed to the humeral prosthesis 1 by bolts, the second compressed air tank 24 and the second suction and discharge air pump 26 are both fixed to the ulnar support rod 13 by bolts, and the fourth connecting tube 27 is connected to the second air bag 7, so as to facilitate the second automatic inflation and deflation structure 8 to be fixed to the ulnar prosthesis 2 by bolts.

[0044] In this embodiment, Figure 1 , Figure 6 as well as Figure 7 As shown, the first bending connecting rod 10 includes a first rotating base 28 rotatably connected to the humeral joint rotation block 11, a first telescopic rod 29 hinged on the first rotating base 28, a second rotating base 30 rotatably connected to the ulnar joint rotation block 14, a second telescopic rod 31 hinged on the second rotating base 30, and a first connecting block 32 hinged at the telescopic ends of the first telescopic rod 29 and the second telescopic rod 31. The first rotating base 28 facilitates the rotational connection of the first telescopic rod 29 to the humeral joint rotation block 11, the second rotating base 30 facilitates the rotational connection of the second telescopic rod 31 to the ulnar joint rotation block 14, the first telescopic rod 29 and the second telescopic rod 31 facilitate the bending and swinging between the humeral prosthesis 1 and the ulnar prosthesis 2 by their own telescopic extension, and the first connecting block 32 facilitates the connection of the telescopic ends of the first telescopic rod 29 and the second telescopic rod 31 together.

[0045] In this embodiment, Figure 1 , Figure 6 as well as Figure 7As shown, the second bending connecting rod 41 includes a third rotating base 33 rotatably connected to the humeral joint rotation block 11, a third telescopic rod 34 hinged on the third rotating base 33, a fourth rotating base 35 rotatably connected to the ulnar joint rotation block 14, a fourth telescopic rod 36 hinged on the fourth rotating base 35, and a second connecting block 37 hinged at the telescopic ends of the third telescopic rod 34 and the fourth telescopic rod 36. The third rotating base 33 facilitates the rotational connection of the third telescopic rod 34 to the humeral joint rotation block 11, the fourth rotating base 35 facilitates the rotational connection of the fourth telescopic rod 36 to the ulnar joint rotation block 14, the third telescopic rod 34 and the fourth telescopic rod 36 facilitate the bending and swinging between the humeral prosthesis 1 and the ulnar prosthesis 2 through their own telescopic extension, and the second connecting block 37 facilitates the telescopic ends of the third telescopic rod 34 and the fourth telescopic rod 36 to be connected together.

[0046] In this embodiment, Figure 1 , Figure 6 as well as Figure 7 As shown, the first telescopic rod 29 is hinged on the first rotating base 28 by bolts, the second telescopic rod 31 is hinged on the second rotating base 30 by bolts, the third telescopic rod 34 is hinged on the third rotating base 33 by bolts, and the fourth telescopic rod 36 is hinged on the fourth rotating base 35 by bolts, which is convenient for replacing or maintaining the first telescopic rod 29, the second telescopic rod 31, the third telescopic rod 34 and the fourth telescopic rod 36. The synchronous connecting rod 9 is composed of two connecting plates 40 which are respectively rotatably connected to the first connecting block 32 and the second connecting block 37 on both sides. The connecting plate 40 facilitates the first connecting block 32 and the second connecting block 37 to be rotatably connected together, thereby realizing multi-axis mutual linkage between the first curved connecting rod 10 and the second curved connecting rod 41.

[0047] In this embodiment, if Figure 1-Figure 9 As shown, the working process of an implantable upper limb prosthesis for hand replacement and a method of use provided by this embodiment is as follows:

[0048] Step 1: When using the device, the humeral prosthesis 1 should be taken out first, and then the first air bag 5 is mounted on the humeral joint rotation block 11 through the first T-shaped clamping block 16. At this time, it is necessary to ensure that the first T-shaped clamping block 16 is clamped in the first T-shaped clamping groove 15, and then the first extraction and discharge air pump 21 is fixedly installed on the humeral support rod 12 by bolts, and at the same time, the first compressed air tank 19 is fixedly installed on the humeral support rod 12 by bolts;

[0049] Step 2: At this time, the ulnar prosthesis 2 is taken out again, and then the second air bag 7 is mounted on the ulnar joint rotation block 14 through the second T-shaped clamping block 18. At this time, it is necessary to ensure that the second T-shaped clamping block 18 is clamped in the second T-shaped clamping groove 17, and then the second extraction and discharge air pump 26 is fixedly installed on the ulnar support rod 13 by bolts, and at the same time, the second compressed air tank 24 is fixedly installed on the ulnar support rod 13 by bolts;

[0050] Step 3: At this time, the first telescopic rod 29 is fixedly hinged on the first rotating base 28 by bolts, and then the second telescopic rod 31 is fixedly hinged on the second rotating base 30 by bolts, and then the third telescopic rod 34 is fixedly hinged on the third rotating base 33 by bolts, and then the fourth telescopic rod 36 is fixedly hinged on the fourth rotating base 35 by bolts, and then the humeral prosthesis 1 and the ulnar prosthesis 2 can be rotatably connected together through the multi-axis connection structure 3, so that the mutual linkage between the humeral prosthesis 1 and the ulnar prosthesis 2 can be realized;

[0051] Step 4: When the device is in operation, the first exhaust air pump 21 starts to operate, and then the first ball valve 23 opens, and then the gas in the first compressed gas tank 19 quickly flows into the first air bag 5, and then the first air bag 5 can be filled, and then the first ball valve 23 is closed, and at the same time, the second exhaust air pump 26 also starts to operate, and then the second ball valve 39 opens, and then the gas in the second compressed gas tank 24 quickly flows into the second air bag 7, and then the second air bag 7 can be filled, and then the second ball valve 39 is closed;

[0052] Step 5: This can fill the swinging space left between the humeral prosthesis 1 and the ulnar prosthesis 2. When the humeral prosthesis 1 and the ulnar prosthesis 2 need to swing to a certain degree, the first ball valve 23 can be opened, and then the first exhaust air pump 21 starts to operate and draws the gas in the first air bag 5 back to the first compressed air tank 19, and then the first ball valve 23 is closed. At the same time, the second ball valve 39 can be opened, and then the second exhaust air pump 26 starts to operate and draws the gas in the second air bag 7 back to the first compressed air tank 19, and then the second ball valve 39 is closed. This can reduce the friction between the first air bag 5 and the second air bag 7, so that the swinging degree between the humeral prosthesis 1 and the ulnar prosthesis 2 can be regulated. At the same time, the first air bag 5 and the second air bag 7 can also protect the humeral joint transfer block 11 and the ulnar joint transfer block 14 to prevent the humeral joint transfer block 11 and the ulnar joint transfer block 14 from wear.

[0053] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0054] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0055] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. An implantable upper limb prosthesis for hand replacement and a method of use, comprising a humeral prosthesis (1) and an ulnar prosthesis (2), characterized in that: The two end surfaces of the humeral prosthesis (1) and the ulnar prosthesis (2) are fixedly connected via a multi-axial connection structure (3); an automatically adjustable airbag cushion (4) is arranged between the joint surfaces of the humeral prosthesis (1) and the ulnar prosthesis (2); the automatically adjustable airbag cushion (4) comprises a first airbag (5) mounted on the joint surface of the humeral prosthesis (1), a first automatic inflation and deflation structure (6) symmetrically connected and arranged above the first airbag (5), a second airbag (7) mounted on the joint surface of the ulnar prosthesis (2), and a second automatic inflation and deflation structure (8) symmetrically connected and arranged above the second airbag (7). The multi-axis connection structure (3) comprises a synchronous connection rod (9), a first curved connection rod (10) rotatably connected to one end of the synchronous connection rod (9), and a second curved connection rod (41) rotatably connected to the other end of the synchronous connection rod (9); the humeral prosthesis (1) comprises a humeral support rod (12) and a humeral joint rotation block (11) arranged on the humeral support rod (12) near one end surface of the ulnar prosthesis (2); and the ulnar prosthesis (2) comprises an ulnar support rod (13) and an ulnar joint rotation block (14) arranged on the ulnar support rod (13) near one end surface of the humeral prosthesis (1).

2. The implantable upper limb prosthesis for hand replacement and the method of use according to claim 1, characterized in that: The joint surface of the humeral joint transfer block (11) is provided with a plurality of first T-shaped snap-in grooves (15); the first airbag (5) is provided with a plurality of first T-shaped snap-in blocks (16) adapted to the first T-shaped snap-in grooves (15) on the contact surface with the joint surface of the humeral joint transfer block (11); the two ends of the first airbag (5) are fixed to the upper end surface edge of the humeral joint transfer block (11) by bolts; the first airbag (5) is provided with rubber limit strips (38) on the two end surface edges of the contact surface with the second airbag (7).

3. The implantable upper limb prosthesis for hand replacement and the method of use according to claim 1, characterized in that: The joint surface of the ulnar joint pivot block (14) is provided with a plurality of second T-shaped snap-in grooves (17); the second airbag (7) is provided with a plurality of second T-shaped snap-in blocks (18) adapted to the second T-shaped snap-in grooves (17) on the contact surface with the joint surface of the ulnar joint pivot block (14); and the two ends of the second airbag (7) are fixed to the upper end surface edge of the ulnar joint pivot block (14) by bolts.

4. The implantable upper limb prosthesis for hand replacement and the method of use according to claim 1, characterized in that: The first automatic inflation and deflation structure (6) comprises a first compressed gas tank (19), a first connecting pipe (20) connected to the lower surface of the first compressed gas tank (19), a first exhaust air pump (21) connected to the lower end of the first connecting pipe (20), a second connecting pipe (22) connected to the first exhaust air pump (21), and a first ball valve (23) arranged on the second connecting pipe (22).

5. The implantable upper limb prosthesis for hand replacement and the method of use according to claim 4, characterized in that: The second automatic inflation and deflation structure (8) comprises a second compressed gas tank (24), a third connecting pipe (25) connected to the lower surface of the second compressed gas tank (24), a second exhaust air pump (26) connected to the lower port of the third connecting pipe (25), a fourth connecting pipe (27) connected to the second exhaust air pump (26), and a second ball valve (39) arranged on the fourth connecting pipe (27).

6. The implantable upper limb prosthesis for hand replacement and the method of use according to claim 5, characterized in that: The first compressed air tank (19) and the first extraction / deflation air pump (21) are both fixed to the humeral support rod (12) by bolts, the second connecting pipe (22) is connected to the first air bag (5), the second compressed air tank (24) and the second extraction / deflation air pump (26) are both fixed to the ulnar support rod (13) by bolts, and the fourth connecting pipe (27) is connected to the second air bag (7).

7. The implantable upper limb prosthesis for hand replacement and the method of use according to claim 1, characterized in that: The first curved connecting rod (10) comprises a first rotating base (28) rotatably connected to the humeral joint rotation block (11), a first telescopic rod (29) hinged on the first rotating base (28), a second rotating base (30) rotatably connected to the ulnar joint rotation block (14), a second telescopic rod (31) hinged on the second rotating base (30), and a first connecting block (32) hinged at the telescopic ends of the first telescopic rod (29) and the second telescopic rod (31).

8. The implantable upper limb prosthesis for hand replacement and the method of use according to claim 7, characterized in that: The second curved connecting rod (41) comprises a third rotating base (33) rotatably connected to the humeral joint rotating block (11), a third telescopic rod (34) hinged on the third rotating base (33), a fourth rotating base (35) rotatably connected to the ulnar joint rotating block (14), a fourth telescopic rod (36) hinged on the fourth rotating base (35), and a second connecting block (37) hinged at the telescopic ends of the third telescopic rod (34) and the fourth telescopic rod (36).

9. An implantable upper limb prosthesis for hand replacement and a method of use according to claim 8, characterized in that: The first telescopic rod (29) is fixedly hinged on the first rotating base (28) by bolts, the second telescopic rod (31) is fixedly hinged on the second rotating base (30) by bolts, the third telescopic rod (34) is fixedly hinged on the third rotating base (33) by bolts, the fourth telescopic rod (36) is fixedly hinged on the fourth rotating base (35) by bolts, and the synchronous connecting rod (9) is composed of two connecting plates (40) which are respectively rotatably connected to the first connecting block (32) and the second connecting block (37) on both sides.

10. The implantable upper limb prosthesis for hand replacement and the method of use according to claim 1, characterized in that: S1. When using the device, the humeral prosthesis (1) should be removed first, and then the first air bag (5) should be mounted on the humeral joint rotation block (11) through the first T-shaped mounting block (16). At this time, it should be ensured that the first T-shaped mounting block (16) is mounted in the first T-shaped mounting groove (15). Then, the first extraction and discharge air pump (21) is fixedly mounted on the humeral support rod (12) by bolts, and at the same time, the first compressed air tank (19) is fixedly mounted on the humeral support rod (12) by bolts; S2, then take out the ulnar prosthesis (2), and then install the second air bag (7) on the ulnar joint rotation block (14) through the second T-shaped clamping block (18). At this time, make sure that the second T-shaped clamping block (18) is clamped in the second T-shaped clamping groove (17), and then fix the second suction and discharge air pump (26) on the ulnar support rod (13) by bolts, and at the same time, fix the second compressed air tank (24) on the ulnar support rod (13) by bolts; S3, at this time, the first telescopic rod (29) is fixedly hinged on the first rotating base (28) by bolts, and then the second telescopic rod (31) is fixedly hinged on the second rotating base (30) by bolts, and then the third telescopic rod (34) is fixedly hinged on the third rotating base (33) by bolts, and then the fourth telescopic rod (36) is fixedly hinged on the fourth rotating base (35) by bolts, and then the humeral prosthesis (1) and the ulnar prosthesis (2) can be rotationally connected together through the multi-axis connection structure (3), so that the humeral prosthesis (1) and the ulnar prosthesis (2) can be mutually linked; S4, when the device is in operation, the first extraction and discharge air pump (21) starts to operate, then the first ball valve (23) opens, and then the gas in the first compressed gas tank (19) quickly flows into the first air bag (5), and then the first air bag (5) can be filled, and then the first ball valve (23) is closed, and at the same time, the second extraction and discharge air pump (26) also starts to operate, and then the second ball valve (39) opens, and then the gas in the second compressed gas tank (24) quickly flows into the second air bag (7), and then the second air bag (7) can be filled, and then the second ball valve (39) is closed; S5. This allows the swing space left between the humeral prosthesis (1) and the ulnar prosthesis (2) to be filled. When the humeral prosthesis (1) and the ulnar prosthesis (2) need to swing to a certain degree, the first ball valve (23) can be opened, and then the first suction and discharge air pump (21) starts to operate and pumps the gas in the first air bag (5) back into the first compressed gas tank (19), and then the first ball valve (23) is closed. At the same time, the second ball valve (39) can be opened, and then the second suction and discharge air pump (26) starts to operate. The gas in the second airbag (7) is pumped back into the first compressed air tank (19), and then the second ball valve (39) is closed. This can reduce the friction between the first airbag (5) and the second airbag (7), so that the swing degree between the humeral prosthesis (1) and the ulnar prosthesis (2) can be regulated. At the same time, the first airbag (5) and the second airbag (7) can also protect the humeral joint rotation block (11) and the ulnar joint rotation block (14) to prevent the humeral joint rotation block (11) and the ulnar joint rotation block (14) from wear.

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