As a new way,on-line bid & purchase expands and deepens the bid principle of "Honest,Justice,Public". This paper analyzes the characteristics of on-line bid,puts forward the centralized bidding frame based on Internet,and optimizes the bid procedure. The study not only makes the on-line bid more effective and strict but also makes the bid result more convincing.

The research procedure of dynamic data acquisition and analysis system for body temperature(the body temperature HOLTER) is introduced in this paper.Some aspects of software and hardware technology related to the body temperature HOLTER are discussed emphatically.The system presents a good result through the preliminary application to the clinical practice.

This paper introduces an infusion remote-control system based on wireless data-transfer.It can realize such functions as the accurate control of the infusion speed,humanized prompt,central monitoring,wardship and management.Ultrasonic adopted to detect the flux,the lower MCU can fulfill such functions as control,display and storage,which can also perform real-time wireless communication with the upper PC to facilitate remote control.

This paper introduces some information of the multi-function hydraulic pressure diagnostic and therapeutic instrument, which is applied to the diagnoses and treatments of oviduct, matrix, urethra, bladder and bile duct, including its system function, operation principle, software and hardware designs. Being reliable, cheap, convenient and multipurpose, the instrument has a bright future in the market.

This paper introduces some information of the infusion tele-control system based on LonWorks, including its system function, operation principle, software and hardware designs. With high reliability, low cost and convenient operation, this system has a bright future in the market and its application.

Objective To explore the digital tomosynthesis(DTS)technology application value in children with atlanto-axial joint subluxation inspection.Methods 30 children with torticollis after injury,head and neck activities obstacles or local pain were selected.The consent of patient and family was obtained.At the same time the atlanto-axial joint open mouth,cervical lateral radiographies and DTS scanning were performed,two imaging quality and the diagnosis were compared.Results In all 30 cases,excellent imaging rate was 90% (27/30)on DTS and 53% (1 6/30)on DR respectively.On DTS atlanto-axial sublution were found in 22 cases but on DR atlanto-axial sublution were diagnosed in only 12 cases,suspicious subluxation in 4 cases,and misdiagnosis in 6 cases.Conclusion For diagnosis of atlanto-axial joint subluxation in children,DTS can obtain high quality images,clearly display anatomic structures and pathological morphology of atlanto-axial joint.

ObjectiveTo evaluate correlation factors of cervical lymph nodes metastasis in thoracic esophageal carcinoma.MethodsLocal-regional metastasis of lymph node for 126 cases with esophageal squamous cell cancer after surgery from 2004 to 2009 were reviewed.Risk factors of cervical lymph nodes metastasis were examined by multiple Logistic regression analysis.ResultsIn 126 cases,supraclavicular lymph node metastasis rate was 43.7％ (55/126).By logistic regression,none of the primary site,T stage,N stage,histological grade,lymph node metastasis rate,lymph node metastasis degree and number of lymph nodes metastatic field was not the high risk of cervical lymph nodes metastasis.In addition,multivariate analysis found that lymph node metastasis in mediastinum region 1 was high risk factor for lymph node metastasis of region 1 ( x2 =12.14,9.27,P =0.000,0.002),lymph node metastasis in region Ⅲ and region 2 were high risk factors for lymph node metastasis of region Ⅱa ( x2 =14.56,8.27,8.02,3.93,P =0.000,0.004,0.005,0.047 ).ConclusionMediastinal para-recurrent nerve lymph node metastasis is a significant predictor for cervical lymph nodes metastasis.

Upper urinary tract calculi combined with dual infections is rare, and the antimicrobial therapy is complicated. This retrospective study analyzed the clinical data of 3 patients with upper urinary tract calculi combined with dual infection who were admitted to our hospital. Three patients were treated with piperacillin sulbactam combined with fluconazole for 1 week, according to the preoperative urine culture and drug sensitivity results. Endoscopic surgery was performed after the efficacy was determined by routine urine examination. After surgery, fluconazole was administered until the removal of the double-J tube for 2 weeks, and fluconazole was discontinued when no white blood cells or fungus were found. No recurrence of stones or infection was observed at a follow-up of 11 months to 2 years. The rational choice of antimicrobial drugs to treat upper urinary tract calculi combined with dual infection could create good conditions for endoscopic surgical intervention, thus achieving satisfactory clinical outcomes.

Objective To investigate the incidence of cognitive dysfunction in postpartum women who underwent epidural or non-drug labor analgesia and the influence factors.Methods A prospective cohort study was performed in 1 618 uneventful singleton pregnancies in International Peace Maternity and Child Health Hospital from January 2017 to January 2018.Women who received epidural labor analgesia were assigned to the epidural group (n=803),and those who received Doula technique non-drug labor analgesia rather than labor analgesia to the control group (n=815).Cognitive function was assessed using symbol digit modalities test (SDMT90) and Montreal cognitive assessment (MoCA) 1 d and 42 d after delivery.Incidence of maternal cognitive dysfunction,SDMT90 scores and pain intensity measured by visual analogue score (VAS) at the cervical dilatation of 3,6 and 10 cm between the two groups were compared using independent sample t-test,Chi-square test or logistic regression analysis.Results MoCA and SDMT90 scores of the epidural group were significantly higher than those of the control group 1 d after delivery (27.1 ± 1.5 vs 26.2± 1.8,49.1 ±2.4 vs 42.5 ± 3.6;t=3.775 and 16.956,both P＜0.05),but the incidence of postoperative cognitive dysfunction (POCD) in the epidural group was remarkably lower comparing to the control group [13.9％ (112/803) vs 21.2％ (173/815),x2=14.769,P=0.002].The VAS scores of the epidural group at the cervical dilatation of 3,6 and 10 cm were all lower than those of the control group (2.3 ± 0.6 vs 6.9± 1.3,3.3 ± 0.9 vs 8.7± 0.9,5.7± 0.9 vs 9.7± 0.4;t=0.013,0.011 and 0.015;all P＜0.001).Logistic regression analysis indicated that VAS scores ≤ 3 at the cervical dilatation of 3,6 and 10 cm were protective factors against the incidence ofPOCD 1 d after delivery [OR(95％CI):0.238 (0.198-0.287),0.180 (0.145-0.222) and 0.112 (0.088-0.142),all P＜0.001],while the absence of epidural labor analgesia was a risk factor (OR=4.698,95％CI:1.812-11.321,P＜0.001).Conclusions Epidural labor analgesia can reduce the incidence of postpartum cognitive dysfunction in women 1 d after delivery.The incidence of POCD has close relationship with the VAS scores at the cervical dilatation of 3,6 and 10 cm and epidural labor analgesia.