阅读说明：本技术 一种3d打印气囊型临时假肢 (3D prints interim artificial limb of gasbag type ) 是由 王金武 周洁 石国宏 万克明 王彩萍 廖鹏 戴尅戎 于 2020-05-21 设计创作，主要内容包括：本申请提供了一种3D打印气囊型临时假肢,包括：支撑平台、可调节的上稳定支架、及可调节的下稳定支架；所述上稳定支架设于所述支撑平台侧部,所述下稳定支架设于所述支撑平台底部；所述上稳定支架设有3D打印的上腿箍、及下腿箍；所述上腿箍内、下腿箍内、及所述支撑平台上放置有气囊；所述上稳定支架顶部设有朝外的3D打印的扶手。本申请将原来的壳体接受腔替换为可调节稳定支架和带有凹槽的腿箍的结构,使得穿戴过程得到简化。假肢最上部的手柄可以改良患者行动不便的问题。整体结构得到简化,并且腿箍和手柄部分将使用3D打印技术制作,能够增强与患者的适配性,提高舒适度,降低成本。(The application provides a 3D prints interim artificial limb of gasbag type includes: the device comprises a supporting platform, an adjustable upper stabilizing bracket and an adjustable lower stabilizing bracket; the upper stabilizing support is arranged on the side part of the supporting platform, and the lower stabilizing support is arranged at the bottom of the supporting platform; the upper stabilizing support is provided with an upper leg hoop and a lower leg hoop which are printed in a 3D mode; air bags are arranged in the upper leg hoop, the lower leg hoop and the supporting platform; go up the steady rest top and be equipped with the handrail that 3D printed outwards. This application is with the structure of adjustable outrigger and the grooved leg hoop of taking to original casing accepting the chamber replacement for the wearing process is simplified. The handle at the uppermost part of the prosthesis can improve the problem of inconvenient movement of the patient. Overall structure is simplified to leg hoop and handle portion will use 3D printing technology preparation, can strengthen with patient's suitability, improve the comfort level, reduce cost.)

1. A3D printed balloon-type temporary prosthesis, the temporary prosthesis comprising: the device comprises a supporting platform, an adjustable upper stabilizing bracket and an adjustable lower stabilizing bracket;

the upper stabilizing support is arranged on the side part of the supporting platform, and the lower stabilizing support is arranged at the bottom of the supporting platform;

the upper stabilizing support is provided with an upper leg hoop and a lower leg hoop which are printed in a 3D mode; air bags are arranged in the upper leg hoop, the lower leg hoop and the supporting platform;

go up the steady rest top and be equipped with the handrail that 3D printed outwards.

2. A temporary prosthesis according to claim 1, in which the support platform is rectangular or square; the number of the upper stabilizing supports is two; the two upper stabilizing supports are respectively arranged on two side corners of one side facing forwards when the upper stabilizing support is used by a corresponding patient; the lower stabilizing support is fixed at the position, close to the forward side, of the center of the supporting platform.

3. A temporary prosthesis according to claim 2, in which there are upper and lower first connectors between the two upper stabilizing brackets; the horizontal direction of each upper stabilizing support corresponding to the upper and lower first connecting pieces is respectively provided with a second connecting piece in an inward extending manner; the upper part and the lower part of the supporting platform are respectively provided with an upper concave structure and a lower concave structure by the first connecting piece and the second connecting piece, so as to respectively fix the upper leg hoop and the lower leg hoop.

4. A temporary prosthesis according to claim 3, in which the upper of the upper and lower first connectors is fixedly provided with an outwardly facing 3D printed handrail.

5. A temporary prosthesis according to claim 1, wherein the upper and lower leg cuffs are open channel shaped; the upper leg hoop and the lower leg hoop are made of elastic materials, and the opening parts of the upper leg hoop and the lower leg hoop can be adjusted in opening angle.

6. A temporary prosthesis according to claim 5, in which the open portions of the upper and lower leg cuffs are provided with detachable leg cuff bands for securing and adjusting the tightness.

7. A temporary prosthesis according to any of claims 5, wherein the upper and lower leg cuffs are 3D printed with a fit to leg dimension data obtained by optical scanning of the patient's leg; the materials used by the 3D printing technique include: any one or more of polyurethane, polylactic acid, nylon plastics, photosensitive resin, silica gel, rubber, latex, ABS plastics, PVC plastics, organic silicon resin and propenyl resin.

8. A temporary prosthesis according to claim 1, in which a plurality of screw holes are formed in the main bodies of the upper and lower stabilizing supports, respectively, and the height is freely adjustable by fixing screws to the screw holes at different degrees.

9. A temporary prosthesis according to claim 1, in which the upper stabilizing brace is fixedly connected to the lower stabilizing brace by a support member.

10. A temporary prosthesis according to claim 1, in which the lower stabilizing brace is provided at its base with a ground engaging joint; the ground contacting joint has a cross-sectional area greater than a cross-sectional area of the lower stabilizing bracket.

Technical Field

The application relates to the technical field of artificial limbs, in particular to a 3D printing airbag type temporary artificial limb.

Background

Usually, a temporary artificial limb is needed to be used for transition after an amputee operation, or the temporary artificial limb is needed to replace a formal artificial limb in the scene of small-range activities such as water pouring, indoor activities, bathing and getting up at night, so that the temporary artificial limb can be worn quickly to play a role in temporary use.

However, the traditional temporary artificial limb has more defects:

1. the traditional temporary artificial limb has complex manufacturing process, long time and high cost.

2. The existing temporary artificial limb is easy to cause muscle atrophy, local blood flow is not smooth and even deep vein thrombosis risk is induced when the local brake is worn for a long time.

3. The existing temporary artificial limb is heavy and inconvenient to wear, and is easy to cause discomfort of patients.

4. The traditional temporary artificial limb is not provided with an armrest, does not optimize or improve the problem of inconvenient movement of a patient, and is not easy to adjust the height.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present application is to provide a 3D printed balloon-type temporary prosthesis for solving at least one of the problems of the prior art.

To achieve the above and other related objects, the present application provides a 3D printed balloon-type temporary prosthesis, the temporary prosthesis including: the device comprises a supporting platform, an adjustable upper stabilizing bracket and an adjustable lower stabilizing bracket; the upper stabilizing support is arranged on the side part of the supporting platform, and the lower stabilizing support is arranged at the bottom of the supporting platform; the upper stabilizing support is provided with an upper leg hoop and a lower leg hoop which are printed in a 3D mode; air bags are arranged in the upper leg hoop, the lower leg hoop and the supporting platform; go up the steady rest top and be equipped with the handrail that 3D printed outwards.

In one embodiment of the present application, the support platform is rectangular or square; the number of the upper stabilizing supports is two; the two upper stabilizing supports are respectively arranged on two side corners of one side facing forwards when the upper stabilizing support is used by a corresponding patient; the lower stabilizing support is fixed at the position, close to the forward side, of the center of the supporting platform.

In an embodiment of the present application, an upper and a lower first connecting members are disposed between the two upper stabilizing supports; the horizontal direction of each upper stabilizing support corresponding to the upper and lower first connecting pieces is respectively provided with a second connecting piece in an inward extending manner; the upper part and the lower part of the supporting platform are respectively provided with an upper concave structure and a lower concave structure by the first connecting piece and the second connecting piece, so as to respectively fix the upper leg hoop and the lower leg hoop.

In an embodiment of the application, an outward 3D printed handrail is fixedly disposed on an upper first connecting piece of the upper and lower first connecting pieces.

In one embodiment of the present application, the upper leg cuff and the lower leg cuff are open groove-shaped; the upper leg hoop and the lower leg hoop are made of elastic materials, and the opening parts of the upper leg hoop and the lower leg hoop can be adjusted in opening angle.

In an embodiment of the present application, the upper leg cuff and the lower leg cuff have detachable leg cuff bands at the openings for fixing and adjusting the tightness.

In an embodiment of the present application, the upper leg cuff and the lower leg cuff are adapted to be 3D printed by leg size data obtained by optically scanning the leg of the patient; the materials used by the 3D printing technique include: any one or more of polyurethane, polylactic acid, nylon plastics, photosensitive resin, silica gel, rubber, latex, ABS plastics, PVC plastics, organic silicon resin and propenyl resin.

In an embodiment of the present application, the upper and lower stabilizing supports have a plurality of screw holes respectively formed in the main body thereof, and the height of the upper and lower stabilizing supports can be freely adjusted by fixing screws to the screw holes at different degrees.

In an embodiment of the present application, the upper stabilizing support and the lower stabilizing support are fixedly connected by a supporting member.

In an embodiment of the present application, a grounding joint is disposed at the bottom of the lower stabilizing bracket; the ground contacting joint has a cross-sectional area greater than a cross-sectional area of the lower stabilizing bracket.

To sum up, the application provides a 3D prints interim artificial limb of gasbag type, includes: the device comprises a supporting platform, an adjustable upper stabilizing bracket and an adjustable lower stabilizing bracket; the upper stabilizing support is arranged on the side part of the supporting platform, and the lower stabilizing support is arranged at the bottom of the supporting platform; the upper stabilizing support is provided with an upper leg hoop and a lower leg hoop which are printed in a 3D mode; air bags are arranged in the upper leg hoop, the lower leg hoop and the supporting platform; go up the steady rest top and be equipped with the handrail that 3D printed outwards.

The following beneficial effects are achieved:

this application is with the structure of adjustable outrigger and the grooved leg hoop of taking to original casing accepting the chamber replacement for the wearing process is simplified. The handle at the uppermost part of the prosthesis can improve the problem of inconvenient movement of the patient. Overall structure is simplified to leg hoop and handle portion will use 3D printing technology preparation, can strengthen with patient's suitability, improve the comfort level, reduce cost.

Drawings

Fig. 1A is a schematic structural diagram of a 3D printed balloon type temporary prosthesis front in one embodiment of the present application.

Fig. 1B is a schematic side view of a 3D printed balloon type temporary prosthesis according to an embodiment of the present application.

Fig. 2A is a schematic structural diagram of a front side of a support platform according to an embodiment of the present disclosure.

Fig. 2B is a schematic structural diagram of a back side of a support platform according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of an upper stabilizing bracket and a lower stabilizing bracket according to an embodiment of the present application.

Fig. 4 is a schematic structural view of a ground engaging contact according to an embodiment of the present application.

Figure 5 is a schematic view of the leg cuff attachment configuration of the present application in one embodiment.

Detailed Description

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only schematic and illustrate the basic idea of the present application, and although the drawings only show the components related to the present application and are not drawn according to the number, shape and size of the components in actual implementation, the type, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complex.

The application a 3D prints interim artificial limb of gasbag type mainly be applicable to like the postoperative interim artificial limb that amputation patient used, or act as the interim artificial limb of the small range internal activity (like pouring water, step, have a bath etc.) after installing official artificial limb, this application is not for traditional official use or frequently-used artificial limb promptly, consequently, this application 3D print gasbag type interim artificial limb compare with traditional official artificial limb of using, probably exist like the fastness of structure or the not enough of some aspects such as protectiveness, but this application more focuses on as the interim artificial limb in the convenience of wearing, the adjustment nature, reduce cost to and the effect of aspects such as travelling comfort.

Fig. 1A shows a schematic structural diagram of a 3D printed balloon type temporary prosthesis front in an embodiment of the present application. Fig. 1B is a schematic structural diagram illustrating a side surface of a 3D printed balloon type temporary prosthesis according to an embodiment of the present application. As shown in fig. 1A and 1B, the temporary prosthesis includes: a support platform 1, an adjustable upper stabilizing support 2, and an adjustable lower stabilizing support 3.

The upper stabilizing support 2 is arranged on the side portion of the supporting platform 1, and the lower stabilizing support 3 is arranged at the bottom of the supporting platform 1.

Specifically, referring to fig. 2A and 2B, the support platform 1 is rectangular or square; the number of the upper stabilizing supports 2 is two; the two upper stabilizing supports 2 are respectively arranged on two side corners of the forward side of the patient when the patient uses the device; the lower stabilizing support 3 is fixed at the position, close to the forward side, of the center of the supporting platform 1.

In this embodiment, the upper stabilizing frame 2 and the lower stabilizing frame 3 are fixedly connected by a supporting member 31. Preferably, the present application provides two of the supporting members 31, the upper end of each supporting member 31 is fixed to the bottom of the upper stabilizing frame 2, and the lower end of each supporting member 31 is fixed to the lower stabilizing frame 3 through a connecting sleeve. Wherein, the end of the supporting member 31 connected with the upper stabilizing frame 2 is provided with a rotating member to adjust the corresponding angle when the lower end of each supporting member 31 is fixed at different heights.

In this embodiment, the main bodies of the upper and lower stabilizing supports 2 and 3 are respectively provided with a plurality of screw holes, and the height of the upper and lower stabilizing supports can be freely adjusted by fixing screws on the screw holes at different degrees. For example, 8 screw holes may be respectively formed on the upper stabilizing frame 2 and the lower stabilizing frame 3 to provide eight gears for adjusting the height, as shown in fig. 3.

In this embodiment, the bottom of the lower stabilizing bracket 3 is provided with a grounding joint 32. As shown in fig. 4, the ground contact joint 32 has a cross-sectional area larger than that of the lower stabilizing brace 3, thereby increasing the stability of the temporary prosthesis in use by increasing the cross-sectional area of the ground contact joint 32.

In this embodiment, two upper and lower first connecting members 21 are disposed between the two upper stabilizing frames 2. As shown in fig. 1A, the first connecting member 21 and the two upper stabilizing supports 2 may be fixed by providing slots or holes at two ends of the first connecting member 21, and fixing the two upper stabilizing supports by using screws through being inserted or sleeved in the slots or holes.

As shown in fig. 1B, each of the upper stabilizing supports 2 is provided with a second connecting member 22 extending inward in the horizontal direction corresponding to the upper and lower first connecting members 21. The first connecting piece 21 and the second connecting piece 22 respectively form an upper concave structure and a lower concave structure above the supporting platform 1. In short, the two upper and lower concave structures respectively include a first connecting member 21 and two second connecting members 22 on two sides.

The first connecting member 21 and the second connecting member 22 form a concave structure for fixing the upper leg cuff 4 and the lower leg cuff 4. In the present application, as shown in fig. 5, the upper leg cuff 4 and the lower leg cuff 4 are respectively in the form of an open groove, such as a C-shape. Specifically, the upper leg cuff 4 and the lower leg cuff 4 may be fixed to the first connecting member 21 and the second connecting member 22 by screws, so that the upper leg cuff 4 and the lower leg cuff 4 are fixed firmly without being loosened up and down.

In this embodiment, the upper stabilizing support 2 is provided with an upper leg cuff 4 and a lower leg cuff 4 for 3D printing; air bags 5 are arranged in the upper leg hoop 4, the lower leg hoop 4 and the supporting platform 1. Wherein, the upper leg hoop 4 and the lower leg hoop 4 are in the shape of an opening groove; the upper leg cuff 4 and the lower leg cuff 4 are made of elastic material, and the opening angle of the upper leg cuff 4 and the opening angle of the lower leg cuff 4 can be adjusted to adapt to the leg sizes of different patients.

In addition, the upper leg cuff 4 and the lower leg cuff 4 are provided with detachable leg cuff bands 23 at their openings for fixing and adjusting the tightness. For example, the detachable leg cuff band 23 may be detachably secured at one end to the end of one second connector 22 and at the other end to the end of the other second connector 22 by a snap assembly.

In this embodiment, the gasbag 5 has been placed in the upper leg hoop 4, in the lower leg hoop 4, and on the supporting platform 1, through setting up flexible gasbag with the part that contacts with patient's shank in the 3D printing gasbag type temporary artificial limb of this application promptly, can increase the buffering of the collision between patient and the shank in the use to the travelling comfort that improves.

In this embodiment, the upper leg cuff 4 and the lower leg cuff 4 are adapted to be 3D printed by leg size data obtained by optically scanning the leg of the patient. The size data acquired by optical scanning of the patient's thigh is adapted for 3D printing.

Specifically, three-dimensional scanning image data of the leg of the patient is acquired in advance, such as three-dimensional scanning image data acquired by an X-ray film and CT, and the size of the leg can be captured by an optical three-dimensional scanner, so that the spatial coordinates of the surface of the leg can be acquired. Compared with the traditional customization process, the optical three-dimensional scanning collection is simple, convenient and accurate, the non-contact optical scanner is harmless to the human body, no radiation exists, high-precision point cloud data can be collected, the body can be tailored, and the legs can be scanned accurately. Then, three-dimensional modeling software is introduced, the size of the leg of the patient is depicted, modeling design is carried out by using a computer according to the size of the leg of the patient, and 3D printing is carried out, so that a better treatment effect can be achieved.

It should be noted that, the leg treatment device can be designed individually according to the leg conditions of different patients, so that the leg treatment device can be completely fit with the leg size of the patient, and personalized, precise and customized treatment is realized. The size of the 3D printing airbag 5 type temporary artificial limb formed through 3D printing in the mode can accord with leg anatomical features of a patient, the patient wears the temporary artificial limb comfortably without discomfort, and the compliance is high.

In an embodiment of the present application, the materials used in the 3D printing technology include, but are not limited to: any one or more of polyurethane, polylactic acid, nylon plastics, photosensitive resin, silica gel, rubber, latex, ABS plastics, PVC plastics, organic silicon resin and propenyl resin.

3D prints interim artificial limb of gasbag 5 type obtains corresponding three-dimensional data through using optical three-dimensional scanner scanning foot, preferably adopts the TPU material to carry out 3D integration shaping and print and form.

Among them, TPU (thermoplastic polyurethanes) is named thermoplastic polyurethane elastomer rubber. The halogen-free flame-retardant TPU can be widely applied to the fields of daily necessities, sports goods, toys, decorative materials and the like, and can also replace soft PVC to meet the environmental protection requirements of more and more fields. The elastomer is a high polymer material with the glass transition temperature lower than the room temperature, the elongation at break of more than 50 percent and good recoverability after the external force is removed. The polyurethane elastomer is a special class of elastomers, and has a wide hardness range and a wide performance range, so that the polyurethane elastomer is a high polymer material between rubber and plastic. It can be plasticized by heating, and has no or little cross-linking in chemical structure, and its molecules are basically linear, but have some physical cross-linking. Such polyurethanes are known as TPUs.

In one or more realizable embodiments, the TPU printing material has the advantages of good performance, easiness in integrated forming, high material utilization rate, economical and practical overall price and no environment pollution.

The 3D printing air bag 5 type temporary artificial limb printed by the TPU material has certain toughness, and a patient can obtain the effect of orthopedic force in the walking process, greatly reduce the uncomfortable feeling and does not influence the normal flexion and extension movement of metatarsophalangeal joints and phalangeal joints. In addition, the 3D prints interim artificial limb of gasbag 5 type that this application provided prints through the additive manufacturing technique, can also have lightly ventilative, accord with anatomical structure, comfortable pleasing to the eye advantage such as, and its surface accuracy is high, has greatly improved the compliance that the patient wore.

In an embodiment of the present application, the top of the upper stabilizing support 2 is provided with an outward 3D printed handrail 6. Specifically, the handrail 6 for outward 3D printing is fixedly disposed on the upper first connecting piece 21 of the upper and lower first connecting pieces 21. The provision of the arm rest 6 in this application can help the patient to better use the temporary prosthesis compared to a conventional temporary prosthesis, especially for patients who have just started to use the prosthesis as a transition.

To sum up, the 3D printing air bag type temporary artificial limb provided by the application. The temporary prosthesis comprises: the device comprises a supporting platform, an adjustable upper stabilizing bracket and an adjustable lower stabilizing bracket; the upper stabilizing support is arranged on the side part of the supporting platform, and the lower stabilizing support is arranged at the bottom of the supporting platform; the upper stabilizing support is provided with an upper leg hoop and a lower leg hoop which are printed in a 3D mode; air bags are arranged in the upper leg hoop, the lower leg hoop and the supporting platform; go up the steady rest top and be equipped with the handrail that 3D printed outwards.

This application is with the structure of adjustable outrigger and the grooved leg hoop of taking to original casing accepting the chamber replacement for the wearing process is simplified. The handle at the uppermost part of the prosthesis can improve the problem of inconvenient movement of the patient. Overall structure is simplified to leg hoop and handle portion will use 3D printing technique preparation, can strengthen with patient's suitability, improve the comfort level. In addition, the cost can be reduced, for example, compared with the conventional prosthesis which has tens of thousands of prices, the temporary prosthesis can be controlled to be about 5000 yuan.

The application effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.