1results about How to "Cause a burden" patented technology

The application relates to the field of medical appliances, in particular to a hard paper splint which comprises a yellow paperboard layer and a connecting layer, the yellow paperboard layer is provided with at least two layers, the connecting layer is provided with at least one layer, the connecting layer is located between the adjacent two yellow paperboard layers, the connecting layer is used for connecting and fixing the adjacent two yellow paperboard layers, and the yellow paperboard layer and the connecting layer are both provided with air permeation holes. The application has the effects of good air permeability, low price, simple use, safety and reliability.