This paper describes a kind of surgical traction machine for physical therapy, which adopts closed loop control mode and a single-chip microcomputer as the control unit. Input can be accomplished through the keyboard or mechanical sensor. Traction is fulfilled through an electromotor-driven mechanism. Inputted parameters and running status can be displayed simultaneously. Being convenient and reliable, the machine can be applied to treatments of cervical spondylosis and lumbar one.

The use of human biological specimen has great significance to the development of biomedicine. Meanwhile, the powerful electronic data set with sophisticated analytic techniques creates challenge to the protec-tion of private information. As for the research with human biological specimen, how to facilitate the research con-duct on the basis of ethical principles is one of the key considerations when the US Department of Health and Hu-man Service initiated the revision of Code of Federal Regulations ( CFR) -theCommon Rule for subject protec-tion. The Notice of Proposed Rulemaking ( NPRM) proposed:Respect for autonomy will be enforced by broad con-sent to enforce and waiver of consent intend to be rare;If the research risks only involve privacy protection, review process will be simplified under the premise of ensuring the implementation of privacy laws and other protective measures. The paper introduced the revisions related to the researches using human biological specimen in NPRM, analyzed the terms of broad consent, exemption and exclusion, and explored the elicitation to ethical review prac-tice in China.

Objective To observe the clinical effect of Yangyin Tongluo Pills combined with acupuncture for the treatment of cerebral infarction sequela. Methods One hundred patients with cerebral infarction sequela were evenly randomized into treatment group and control group. The control group was given acupuncture therapy combined with oral use of clopidogrel, and the treatment group was given acupuncture therapy combined with oral use of Yangyin Tongluo Pills (mainly composed of Fructus Lycii, Flos Chrysanthemi, Radix Rehmanniae, Cortex Moutan, Radix Salviae Miltiorrhizae, Flos Carthami, Semen Persicae, Pheretima, Rhizoma Gastrodiae, Ramulus Uncariae cum Uncis, Spica Prunellae, Radix Glehniae, Radix Ophiopogonis, Fructus Schisandrae Chinensis, Radix Pseudostellariae) . One month constituted a treatment course, and the treatment covered 2 courses. After treatment, the therapeutic effect of the two groups was evaluated, and the changes of National Institute of Health Stroke Scale ( NIHSS) scores and Barthel Index Scale for activities of daily living ( ADL) , and hemorrheology indexes were observed before and after treatment. Results (1) After treatment for 2 courses, NIHSS scores were decreased, ADL scores were increased in the two groups (P<0.01 compared with those before treatment) , and the improvement of the treatment group was superior to that of the control group ( P<0.01) . ( 2) After treatment, hemorrheology indexes were much improved in the treatment group ( P<0 . 05 or P<0 . 01 ) , but remained unchanged in the control group ( P>0.05) . The treatment group had better effect on improving hemorrheology indexes than the control group (P<0.05) . (3) The total effective rate of the treatment group was 90.00% and that of the control group was 64.00%, the overall therapeutic effect of the treatment group being superior to that of the control group (P<0.05) . Conclusion Yangyin Tongluo Pills combined with acupuncture are effective for the treatment of cerebral infarction sequela, and the effect is superior to that of acupuncture combined with clopidogrel.

Objective To evaluate the efficacy of intravenous laser treatment for varicose great saphenous veins of lower limbs. Methods .Intravenous laser treatment in combination with surgical procedure was used to treat 126 cases of varicose great saphenous vein (150 limbs) in this hospital between July 2002 and May 2004. Results .The operation time was 30~50 min (mean, 45 min). A follow-up for 3~19 months (mean, 6 months) in 120 cases (142 limbs) was carried out. Out of the 142 limbs, symptoms of soreness and lacking in strength completely disappeared in 134 limbs (94.4%) and partially subsided in 8 limbs (5.6%). A complete disappearance of symptoms of skin pigmentation and swelling was achieved in 45 limbs (90.0%, 45/50) and 97 limbs (96.4%, 97/101), respectively. The varicose superficial veins vanished in all the limbs without recurrence. Complications included skin burn on the medial malleolus (2 cases) or anterior shank (2 cases), numbness and hypoesthesia on the medial shank (3 cases), and subcutaneous cord-like hard tubercles (32 cases, which were completely softened and absorbed 3 months later). Conclusions .Intravenous laser treatment is a reliable method in the treatment of varicose great saphenous veins, with simplicity of performance, good safety, little influence of normal activities, and excellent cosmetic results.

Four compounds were isolated from the ethanolic extract of the bark of Alseodaphnehainanensis Merr. , The structures were identified as: a neolignan eusiderin A [(7R, 8R)-3,4,5,3′-tetram-ethox-△8’，9’-8-o-4’，7-o-5’lignan]（I）two benzylisoquinoline alkaloids (6,7-dimethoxyisoquinolinyl)-(4′-methoxyphenyl) methanone(Ⅱ), and( 6, 7-methylenedioxyisoquinolinyl )-( 4′-methoxyphenyl ) methanone (Ⅲ), and 4-hydroxy-3-methoxy benzoic acid ( Ⅳ ) on the basis of HR-SIMS，1HNMR，13CNMRand 2D-NMR spectroscopic analysis. CompoundsⅠ～Ⅲ were obtained from the Alseodaphne genus forthe first time.

Objective:To study the inhibitory role of BsAb(anti-human bladder cancer/anti-VEGF) on human bladder cancer growth.Methods:BsAb was used to treat animal models of BIU-87 cell lines.The tumor inhibition rate was calculated and the tumor microvessel density was detected by immunohistochemical techniques.Results:BsAb could significantly inhibit growth of tumor.And the tumor microvessel density was lower than that of the control group.Conclusion:BsAb could inhibit tumor growth by inhibiting angiogenesis. BsAb may become a new method for human bladder cancer treatment.

0.05 ) with the CsA group ( 28.15 ? 8.33 )U/d, ( 13.05 ? 2.17 )U/d at the first month and 1 year after the operation. One year after the operation, 21 patients ( 63.63 %) were subjected to anti-hypertensiom, 5 patients ( 15.15 %) to anti-hyperlipidemia treatment and 3 patients ( 9.09 %) to liver protection treatment due to abnormal liver function in FK506 group, while in the CsA group 28 patients ( 90.32 %) were subjected to anti-hypertension, 13 patients ( 41.94 %) to anti-hyperlipidemia treatment and 11 patients ( 35.48 %) to liver protection treatment due to abnormal liver function. There were significant differences between the two groups.Conclusion The small dose low concentration FK506 is effective in the end stage renal disease of diabetic renal allograft recipients and side effect incidence of it was low, and it has almost the same influence on the glucose metabolism as the CsA.

Objective To design and manufacture an external fixator for close reduction of fibu la and tibial fractures.Methods The all-ring reduction and fixation system made of duroplasts comprises three main parts:two reduction rings with gears and worms,two modulation frames to correct lateral or anteroposterior re-placement,and four connecting rods.By cranking the handle,the gears wi ll be driven,which may in turn shift t he modulation frame,then the needle co nnecting the bone with the frame can s hift the fracture ends in three dimen sions and six freedom degrees.After reduction,the fracture is fixed by the cro ssed needles linked to several groups of half-ring fixation arms,which can b e shifted and locked onto the linking rod properly.Results The apparatus was used in 32patients.All cases got anatomic reduction,and the curativ e ratio was 100%.Conclusion The external fixator for close reductio n of tibial and fibula fractures has g ood reduction and fixation effect,a nd the design provides a very good clinical therap eutic method for close reduction of t ibial and fibula fractures.[

Objective To investigate the effects of low-dose ketamine combined with fentanyl or sulfentanyl in postoperative patient-controlled intravenous analgesia.Methods Two hundred cases with ASA Ⅰ~Ⅱ undergoing elective orthopedic operations were randomly allocated into four groups(50 cases for each group): 0.4?g/(kg?h) fentanyl(group F);0.2?g/(kg?h) fentanyl+120?g/(kg?h) ketamine(group FK);0.04?g/(kg?h) sulfentanyl(group S);and 0.02?g/(kg?h) sulfentanyl+120 ?g/(kg?h) ketamine(group SK).8mg of ondansetron was added to each recipe,and then diluted into 100ml with normal saline.The loading doses of all the patient-controlled-analgesics were 2ml administered 30min before the end of the operation.The background infusion doses were 2ml/h,while the pressing doses were 2ml,with intervals of 30min.Heart rate(HR),blood pressure(BP),respiration rate(RR),pulse O2 saturation and visual analogue scales(VAS),sedation score(SS) with adverse effects and the total times of pressing PCA pump button were observed and recorded in all patients respectively for 48h after operations.Results No statistically significant differences were found in HR,BP and RR among the four groups.VAS and the total pressing times in group F were higher than that in the other groups significantly(P

Objective To evaluate the influence of different combination of anesthetics on blood pressure (BP) and heart rate (HR) of aged patients with serious illness during operation. Methods Forty patients, aged 80～92, with physical status Ⅱ～Ⅲ as categorized according to American Society of Anesthesiologists (ASA) undergoing selective surgery, were randomly divided equally into two groups: in group A ancsthesia was induced with midazolam, fentanyl and maintained with isoflurane, and in group B anesthesia was induced and maintained with etomidate, sevoflurane and nitrous oxide. Mean arterial pressure (MAP), HR and bispectral index (BIS) were observed at the points of preinduction (T0), induction (T1), intubation (T2), incision (T3), 30 minutes after incision (T4) and extubation (T5). Results After induction, BIS decreased from 95?2 to 52?4, while MAP and HR decreased from 110?11mmHg and 73?8/min to 75?9mmHg and 59?4/min respectively, in group A. While in group B BIS decreased from 94?3 to 58?3, MAP and HR decreased from 103?8 mmHg and 76?6/min to 87?7 mmHg and 67?5/min, respectively. At the point of tracheal intubation, MAP and HR increased significantly in group A compared with group B (P