Objective To prepare a kind of one-off self-heating material for physical therapy and health care. Methods Polymer in salt solid electrolyte(SPE)was prepared with urea, thiourea and polyethelene glycol(PEG). The SPE was chosen to prepare a self-heating material through mixing with reduced iron powder and activated carbon powder. Results The self-heating material was in solid state and performed satisfactory. It released heat when contacted with air and was in dormancy when isolated from air. Conclusion SPE can be used for solid self-heating material through mixing with metal powder and activated carbon powder. The self-heating material can be used for mount of ointment and for other heat-wanted one-off medical use.

Objective To analyze the clinical efficacy of subtotal colectomy,90 degree rotation of the cecum and cecorectal side-to-end anastomosis for slow transit constipation (STC).Methods Clinical data of 31 STC patients treated by subtotal colectomy,90-degree rotation round its long axis and cecorectal anastomosis were retrospective analysed.Results Open surgery was performed in 14 cases,and laparoscopic-assisted surgery in 17 cases.There was no perioperative mortality.Anastomotic fistula occurred in 1 case.4 cases suffered from intestinal obstruction including early postoperative inflammatory bowel obstruction in 2 cases,and incomplete intestinal adhesions in 2 cases.All were cured by conservative treatment.In postoperative one month stool frequency averaged at 8 times/d,after half a year the stool frequency was averaged at 6 times/d,after 2 years it was 4 times/d.There was no stool seepage during night time.Conclusions Colon subtotal resection and 90 ° rotation cecal rectal anastomosis in the treatment of STC is effective and without severe complications.