OBJECTIVE To discuss the practicality of using the nylon nets,which are derived from disposed used medical(suture-band).The nylon nets were attached to the filtering apparatus on original return-wind exit on the lateral wall of surgical operating room.METHODS The velocity of wind,concentration of bacteria and the total(particle) amount of dust were determined by contrasting the number determined before and after passing the nylon nets on the(filtering) apparatus return-wind exit.RESULTS There was no evidence to influence the cleaning and temperature(regulating) effects of air conditioner by binding the nylon nets on them.CONCLUSIONS This method appears to save time as well as energy to work more efficiently than cleaning air conditioners weekly.

OBJECTIVE To investigate the infection rate and observe the healing courses of the incision after the open procedures of the suppurative appendicitis,which was managed by positioning drainage tube under the fatty layer of the incision.METHODS The infection rate,manifestation of the incision,and the mean time in hospital were observed after the drainage tube in the incision was employed.RESULTS The infection rate(9.30%) and the mean time in hospital(6.63?1.95days)dropped significantly(P

OBJECTIVE To investigate the sterilizing effect of Avagard surgery wasting liquid.METHODS All the staff on operation were divided into two groups at random,each no less than 50 persons.Both groups were sterilized by 4% Avagard surgery washing liquid.In one group,hands and forearms were smeared by 0.5% Avagard fast surgery washing liquid(smearing group),the other group was not smeared by 0.5% Avagard fast surgery washing liquid(no-smearing group).In both groups the samples were derived from fingers and cultured right after sterilization and at intervals of 1h,2h,3h,4h,5h and 6h during operation,and to investigate the sterilization effect.RESULTS The bacteriological detections of both groups in all times showed that the number of colony was0.05).CONCLUSIONS The results of the experiment show that 4% Avagard surgery washing liquid is reliable for its sterilizing effect and easy to use.The duration of antibacterial effect is no less than 6 hours,this method could reduce the cost of the operation and improve the efficiency of work.

OBJECTIVE The head of malleus (HOM) was regarded as the landmark for the middle cranial fossa approach,and its relationship with internal auditory meatus(IAM) was measured. The purpose of this study was to find a safe method to locate IAM. METHODS Twelve heads of adult cadaver fixed with 10 % formaldehyde (23 sides) were microsurgically dissected from the middle cranial fossa approach. The foramen spinosum,Ferrein's foramen,greater petrosal nerve,lesser petrosal nerve,facial nerve,HOM,arcuate eminence,superior petrosal sinus,semicircular canal,and IAM were exposed. First,blue lines method was used to locate IAM. Second,HOM as the landmark was used to locate IAM. RESULTS The angles between the SSC and the longitude axis of IAM are 58.52??4.84?。 A perpendicular line (AB) was drew from the center of HOM to the longitude axis of the temporal bone (the longitude axis of the superior petrosal sinus),line BC was drew from the anterior 30?(28.93?? 6.07?) to the line AB. On the line BC,fundus of IAM can be located (6.69?1.10) mm medial to HOM,the center of the internal acoustic pore can be located (20.1?1.48)mm medial to HOM. CONCLUSION In the middle cranial fossa surgery,HOM can be used to locate IAM and its surroundings structures when traditional landmarks are unrecognized.

OBJECTIVE To provide the investigative data for timely changing medical gloves according to the study on the dynamic change of physical property of the gloves during abdominal open procedure.METHODS The gloves used in the abdominal open procedures were collected.The tensile strength,break elongation and the morphological values of three types of the gloves(No.6.5,7 and 7.5) were measured and recorded before and after their using at the time point of 0.0h,1.5h,2.5h,3.5h,4.5h,5.5h and 6.5h during operation.RESULTS The tensile strength decreased significantly(P

ObjectiveTo investigate the application value of negative pressure sucking technique in the elderly after nasal septal reconstruction. MethodsForty elderly patients after nasal septal reconstruction were divided into two groups randomly, with twenty patients in each. The cases in observing group received negative pressure sucking technique while those in controlling group received nasal packing with vaseline gauze following the surgery. The amount of bleeding of the first 24 hours after operation, the comfort degrees evaluated by using visual analogue scale (VAS),hematoma of nasal septum, edema in nasal cavity and duration of hospitalization after operation were compared between the two groups. ResultsThe amount of bleeding of the first 24 hours afteroperation was more in observing group than in controlling group[(14.2±8.1)ml vs. (7.2±4.1)ml, P<0.05]. The VAS score and the number of cases who felt discomfortable moderately or severely were significantly less in observing group than in controlling group at 6 h, 12 h and 24 h after operation(all P<0.05). The nasal cavity gap were significantly wider in observing group at the 3rd day after operation(P=0.001), and the duration of hospitalization after operation was significantly shorter in observing group [(4.5±0.9) d] than in controlling group [(5.42±0.9) d](P=0.042)Conclusions Negative pressure sucking technique applied in the elderly after nasal septal reconstruction can significantly relieve the distress of patients, reduce the edema in nasal cavity and shorten the duration of hospitalization, but does not increase the risk of hemorrhage.