In this paper,the structure,principle and application of combined chemical oxygenerator is described.Its character is that through the adjustable valve controlled by inspiration and expiration,it offers and halts oxygen supply.The utilization rate of oxygen is over 98%.The physico-chemical indices of the oxygen produced reach the national standard for medical oxygen.The experimental results in alti- tude field have shown that it can alleviate the syndroms of acute mountain sickness and reduce heart rate.

Objective To investigate the clinical curative effect of α-lipoic acid combined with lipid microsphere alprostadil in treating elderly early diabetic kidney disease .Methods One hundred and sixty-four cases of early diabetic kidney disease treated in this hospital from January 2014 to January 2016 were selected and randomly divided into the experimental group and the control group according to the random number table method ,82 cases in each group .The control group was given lipid microsphere alpros-tadil ,while on this basis the experimental group was added with α-lipoic acid .The various biochemical indexes ,clinical efficacy and subcutaneous bruising ,fundus event occurrence were compared between the two groups .Results The levels of U-RBP and NAG after treatment in the two groups were significantly decreased compared with before treatment ,the difference was statistically sig-nificant (P<0 .05) .Although other indicators such as serum Scr ,BUN ,CysC andβ2-MG had different degrees of decline ,but the difference was not statistically significant (P>0 .05) .The effective rate in the experimental group was 91 .46% ,which was signifi-cantly higher than 78 .05% in the control group ,the difference was statistically significant (P<0 .05) .Subcutaneous bruising and fundus events in the experiment group had the increasing trend ,but the difference between the two groups had no statistical signifi-cance (P>0 .05) .Conclusion α-lipoic acid combined with lipid microsphere alprostadil in treating elderly early diabetic kidney dis-ease can better improve glomerular and renal tubular function .

Objective To investigate the preliminary clinical efficacy of percutaneous plate internal fixation with fracture reduction oriented forcep in the treatment of lower humeral fractures. Methods A retrospective case control study was conducted to analyze the clinical data of 46 patients with lower humeral fractures admitted to Wuzhong People's Hospital of Suzhou from October 2013 to March 2015. There were 25 males and 21 females, aged 19-76 years, with an average age of 45. 7 years. A total of 22 patients ( percutaneous group) were treated with minimally invasive percutaneous internal fixation with self-developed fracture reduction oriented forcep according to the dimensionality reduction method (DRM). The other 24 patients (control group) were treated with open reduction internal fixation. The length of incision, operation time, intraoperative blood loss, fracture healing time, the American Foot and Ankle Surgery Association ( AOFAS ) ankle-hindfoot score at the last follow-up, and postoperative complications were compared between the two groups. Results All patients were followed up for 12-24 months, with an average of 14. 6 months. There were statistically significant differences between percutaneous group and control group in incision length [(7.1 ±0.8)cm vs. (8.8 ±0.7)cm, operation time [(32.5 ±4.9)min vs. (39.2 ±4.3)min], intraoperative blood loss [(8.0 ±2.7) ml vs. (31.0 ± 11.4)ml], and fracture healing time (16.4 ±2.3)weeks vs. (19.5 ±2.9)weeks], respectively (all P<0.05). In percutaneous group, the AOFAS ankle-hindfoot score was (92.3 ±5.9)points (range, 75-99 points ) , and the overall results were good and excellent in 21/22 ( 96％) including excellent results in 18 patients, good in three, fair in one and poor in 0. In control group, the AOFAS ankle-hindfoot score was (91.8 ±4.9)points (range, 76-99 points), and the overall results were good and excellent in 23/24 (96％) including excellent results in 20 patients, good in three, fair in one and poor in 0. There was no significant difference in the excellent and good rate between two groups (P>0. 05). Poor wound healing was observed in one patient in control group. No case of nonunion was found in either group. Conclusion For lower humeral fractures, the percutaneous plate internal fixation with fracture reduction oriented forcep has the characteristics of simple operation, shortened operation time, reduced soft tissue injury and blood loss, and quick healing of the fracture, which is worthy of clinical application.