Baoji Dingding titanium | titanium alloy prosthetic parts reshape biocompatible support for freedom of movement

In the field of prosthetic rehabilitation, the "lightweight bearing capacity, appropriate fitting and long-term durability" of accessories directly determine the quality of exercise and life of disabled people. The traditional aluminum alloy and stainless steel prosthetic parts have problems such as heavy weight, easy wear and skin irritation. The TA2 pure titanium and TC4 titanium alloy prosthetic parts developed by Baoji Dingding titanium, relying on the advantages of medical grade materials and ergonomic design of "China Titanium Valley", strictly follow the standards of GB 4234 and ISO 13485, and achieve a density of only 4.51g/cm ³ and a surface roughness of RA ≤ 0.1 μ m through the "precision forging+bionic surface processing" process, which are suitable for the full range of products such as upper limb electromyographic prosthetics and lower limb motor prosthetics. They have served more than 200 rehabilitation institutions nationwide and helped the disabled rebuild their confidence in movement.

1、 Core performance advantage: titanium alloy reconstruction prosthetic fitting standard

According to the core requirements of prosthetic accessories for "stable bearing, comfortable wearing and scene adaptation", TA2 pure titanium and TC4 titanium alloy form an exclusive advantage system, achieving a qualitative breakthrough over traditional materials:

TA2 pure titanium accessories: excellent compatibility

Purity ≥ 99.6% medical pure titanium, biocompatibility up to ISO 10993-5, no allergic reaction in contact with skin; After surface passivation treatment, the touch is warm and moist, and there is no risk of pressure ulcer after long-term wearing, which is suitable for people with sensitive skin of residual limbs.

TC4 titanium alloy accessories: strong and tough

Ti-6Al-4V Eli low gap composition, tensile strength ≥ 960mpa, compressive strength ≥ 850mpa; The lower limb accessories can withstand 12 times the weight impact force, and the upper limb accessories can adapt to 20kg weight-bearing grasp, which is the preferred choice of sports prosthesis.

Lightweight advantages

The density is only 4.51g/cm ³, which is 55% lighter than stainless steel parts and 30% lighter than aluminum alloy parts; The weight of complete accessories of lower limb prosthesis is ≤ 800g and upper limb is ≤ 300g, which can reduce muscle fatigue of residual limb and improve the wearing time.

Full scene durability

Anti perspiration and rain corrosion, corrosion rate ≤ 0.00001mm/year; After the surface wear-resistant coating treatment, the service life is ≥ 5 years, which is 2 times longer than that of traditional accessories. It is suitable for daily walking, sports, outdoor and other scenes.

2、 Precise specification system: suitable for all types of prosthetics and people

Combined with amputation site (upper limb/lower limb), residual limb condition (length/circumference) and use demand (daily/sports/occupation), provide standardized and customized accessory solutions, covering adults and children of all ages:

3、 Core application scenario: all dimensional adaptation from daily life to sports

1. daily rehabilitation scene: comfortable and durable life support

In daily scenes, prosthetic accessories are required to give consideration to comfort and practicality, and titanium alloy accessories are accurately matched:

-TC4 titanium alloy receiving cavity and joint axis are used for daily prosthetic limbs of amputees of the thigh. The wall thickness of the receiving cavity is 3mm, and the weight is only 450g, which is 55% less than that of stainless steel accessories. The wearing time of patients in a single day is extended from 4 hours to 8 hours, without residual limb soreness; The surface RA ≤ 0.1 μ m, long-term wear without skin wear, the incidence of pressure ulcer decreased from 18% to 1%;

-TA2 pure titanium contact is used for the sensitive skin of the residual limb. Its biocompatibility reaches the medical level. There is no sensitization reaction after 3 months of operation, and it can solve the pain points of "skin redness, swelling and itching" of the traditional accessories.

2. sports rehabilitation scene: bionic and efficient sports assistance

Sports prosthetics have high requirements for strength and bionics of accessories, and TC4 enhanced accessories have outstanding adaptability:

-TC4 elastic ankle and buffer are used for Paralympic athletes' running prosthetics. The deformation angle of elastic ankle is ± 30 °, which can simulate the normal ankle movement trajectory, and the bionic degree of gait is 92%; No deformation under the impact force of 12 times of body weight, and the athletes' 100 meter dash performance is 0.8 seconds higher than that of using traditional accessories;

-The hardness of the enhanced TC4 sole wear-resistant layer is hrc40. The service life in mountain cross-country training is up to 2 years, which is 3 times longer than that of ordinary accessories and reduces the cost of sports training.

3. children's rehabilitation scene: safety guarantee of growth adaptation

Children grow and develop rapidly. Prosthetic accessories need to be flexibly adjusted and safe. TA2 accessories meet the requirements:

-TA2 pure titanium adjustable connector is used for 8-year-old children with lower leg amputation, with an adjustable range of 10cm. With the growth of height, it is not necessary to replace the prosthesis body, only the accessories can be adjusted, and the cost of prosthesis replacement can be saved by 30000 yuan a year; The surface is round without edges and corners, and the weight is only 200g, which does not affect the normal running and jumping of children, and there is no abnormal bone development;

-No harmful elements such as nickel and chromium, excellent biocompatibility, no health risk for children to wear for a long time, and parents' satisfaction is 98%.

4. career adaptation scenario: load bearing and wear-resistant work support

Professional scenes require accessories to withstand high strength and wear. Nitriding TC4 accessories have significant advantages:

-Nitrided TC4 load-bearing hook and sole are used for construction workers' occupational prosthetics. The tension of the load-bearing hook is 5kn, and it can carry 20kg building materials without deformation; The service life of the sole wear-resistant layer is up to 8 years, which is 4 times longer than that of aluminum alloy parts, and the maintenance cycle is extended from 1 month to 6 months;

-The waterproof grade is IP67, which can be operated in rainy days and muddy environment, and the accessories are free of rust, so as to solve the problem of "easy to break in case of water" of traditional accessories.

4、 Medical quality assurance: full chain control from material to adaptation

1. exclusive control of medical raw materials: use ≥ 99.6% medical grade sponge titanium, TC4 Eli meets ASTM F136 standard, and each batch of raw materials is attached with ICP-MS composition report to ensure that there are no harmful impurities such as lead and mercury; Pass the ISO 10993-5 biocompatibility test (skin irritation and sensitization test) to ensure the safety of wearing;

2. bionic precision manufacturing: introduce 3D scanning and bionic design technology, and the fitting surface fits the contour of the residual limb (error ≤ 0.1mm); The surface is polished to RA ≤ 0.1 μ m in multiple passes to avoid skin abrasion; TC4 accessories adopt nitriding, coating and other strengthening processes to improve wear resistance and bearing capacity;

3. all performance tests: all passed tensile strength test, impact resistance test, fatigue life test (≥ 1million times), corrosion resistance test (simulated sweat immersion); The pressure distribution of the receiving cavity was tested to ensure that the residual limb was stressed evenly and met the medical rehabilitation standards;

4. clinical adaptation service: a professional rehabilitation engineer team is equipped to provide the whole process services of limb assessment, 3D scanning modeling, accessories customization and on-site adaptation and debugging; Establish an after-sales follow-up system, regularly track the use of accessories, and provide free maintenance and adjustment services.

Baoji Dingding titanium: a trusted partner in the rehabilitation of prosthetic accessories

The company has been engaged in the field of medical titanium alloy prosthesis accessories for 8 years, has 3 special production lines, and has an annual production capacity of 300000 sets, and has passed the ISO 13485 medical device quality management system certification and CE certification. The products serve well-known institutions such as the China Rehabilitation Research Center and the Shanghai Institute of rehabilitation medicine engineering. They are suitable for international well-known prosthetic brands such as Ottobock and Ossur. With the three advantages of "lightweight, high fitness and long life", they have become an excellent brand for rehabilitation institutions and people with disabilities.

Technical core: 3D bionic design+medical grade titanium material optimization

Complete qualification: ISO 13485, CE certification

Scheme consultation: send the situation of disabled limbs+demand to 530975155@qq.com , get the adaptation scheme for free