| 摘要 |
The utility model discloses a pumpback exhaust type sterile embedded wire needle, which comprises a needle head, a syringe and a propeller, wherein a push needle is fixed on the front end of the propeller, the push needle passes through the needle head, the propeller can slide into an inner cavity of the syringe, a pumpback exhaust hole which runs through the inner and the inner and the outer portions of the syringe is arranged on the front end portion of the syringe, and the inner cavity of the syringe can be communicated with the external through the pumpback exhaust hole. The pumpback exhaust type sterile embedded wire needle has the advantages that the pumpback exhaust hole is directly arranged on the front end portion of the syringe, is closed by being pressed by fingers when doctors embed wires, and is communicated with the inner cavity and the external by loosening the pressing. The pumpback exhaust type sterile embedded wire needle has exhaust function, and can discharge the air which enters the inner portion when penetrating a catgut, thereby preventing infection, reduces a pipe cavity, and is convenient to operate, simple in structure and low in making cost. |
