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Technology for making receptive cavity of artificial limb of shank with plastic tube by thermoplastic shaping

A plastic pipe, thermoplastic molding technology, applied in applications, artificial legs, household components, etc., can solve the problem of expensive materials, achieve the effect of low price, simple use of equipment, and solve the difficulty of fitting prosthetics

Inactive Publication Date: 2002-11-27
中国残疾人用品开发供应总站
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  • Summary
  • Abstract
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Problems solved by technology

This method is easy to operate, fast in production speed, and good in environmental protection. However, thermoplastic sheets are custom-made and can only be produced in small batches, so the material is expensive

Method used

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  • Technology for making receptive cavity of artificial limb of shank with plastic tube by thermoplastic shaping
  • Technology for making receptive cavity of artificial limb of shank with plastic tube by thermoplastic shaping
  • Technology for making receptive cavity of artificial limb of shank with plastic tube by thermoplastic shaping

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Embodiment Construction

[0021] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0022] Such as figure 1 with figure 2 As shown, it is an embodiment of the present invention using plastic tubing to thermoform the calf prosthetic cavity. At first, a section of industrially produced high-density polyethylene (HDPE) plastic tubing is cut, the length is 400 mm, and the outer diameter is 90 mm. Wall thickness 5.4 mm. The plastic pipes cut into sections were heated in an oven at a heating temperature of 230° C. and a heating time of 20 minutes. After the plastic pipe is heated and softened, put it on the calf gypsum male with an inner sleeve, and quickly seal the plastic pipe at the end of the male. Start the vacuum pump, draw a vacuum through the through hole or tube in the center of the calf plaster male, and draw a vacuum to the plastic pipe after the end is sealed, so that the plastic pipe is c...

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Abstract

A thermoplastic technology for forming the receiving cavity of artificial leg from plastic pipe includes such steps as cutting the polyethylene pipe to the needed length, heating it for softening, sleeving it on the male gypsum mould of leg, quickly closing another end, vacuumizing it to make the plastic pipe tightly fit the mould, cooling, breaking off the mould, and trimming. Its advantages aresimple process and low cost.

Description

technical field [0001] The invention relates to a method for manufacturing a calf prosthetic socket, in particular to a method for thermoforming a calf prosthetic socket with plastic pipes. Background technique [0002] At present, there are two common methods for forming the socket of bone-type calf prosthesis at home and abroad. One is thermosetting molding with resin materials at room temperature. The operation technique of this method is complex; the price of raw materials is high; and the environmental protection performance and safety performance are all relatively poor. The second is to use special thermoplastic sheet thermoforming. This method is easy to operate, fast in production speed, and good in environmental protection. However, thermoplastic sheets are custom-made and can only be produced in small batches, so the material is expensive. Generally speaking, the market price of calf prostheses produced by the above two methods using domestic components is 3,000...

Claims

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Application Information

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IPC IPC(8): A61F2/60B29C69/00B29D99/00
Inventor 乔新生姬文平陈华忠
Owner 中国残疾人用品开发供应总站
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