No abstract available.
Paralysis* ; Tourniquets*

No abstract available.
Paralysis* ; Tourniquets*

No abstract available.
Aged ; Humans ; Tourniquets

PURPOSE: Surgery on digit requires a clear, bloodless field and it can be achieved by using a tourniquet. Several type of tourniquet have been used including Penrose drains and sterile glove with hemostat. We present a simple digital tourniquet using nelaton catheter, which is easily available, inexpensive, easy-to-apply, and effective for digital surgery. METHODS: We made a small incision on the opposite side of an opening at the tip of nelaton catheter. Then the other tip of nelaton catheter is passed through the incision to form a ring. Nelaton catheter is placed aournd the base of the injured finger, making a tight circle to desired pressure. RESULTS: A simple tourniquet using nelaton catheter effectively achieves a bloodless field and allows fine control of the pressure for digital surgery. CONCLUSION: We present a sismple digital tourniquet using nelaton catheter, which is easily available, inexpensive, tunable, and available for more than one finger.
Catheters ; Fingers ; Tourniquets

A new adaptive pneumatic tourniquet was developed for limb operation and first-aid. The crucial hardware circuits of the adaptive pneumatic tourniquet were designed based on the microprocessor C8051F340 and blood pressure module CSN602, software was programmed and an experiment was carried out for verifying the system. Results showed that the prototype could measure accurately systolic blood pressure, heart rate and other relative parameters and the designed device could adjust tourniquet cuff's pressure through inflation and deflation according to systolic blood pressure and limb circumference. This designed system integrated the advantages of the adaptive pneumatic tourniquet, and could be used for controlling life-threatening extremity hemorrhage operation and maintaining a bloodless opeation field.
Equipment Design ; Humans ; Microcomputers ; Tourniquets

No abstract available.
Capillaries* ; Ischemia* ; Muscle, Skeletal* ; Tourniquets*

PURPOSE: To evaluate the effect of the tourniquet on intraoperative patellar tracking and to determine how this may influence the decision to perform lateral release during primary total knee arthroplasty (TKA). MATERIALS AND METHODS: From Jan. 1998 to Feb. 1999, 126 TKAs in which patellar tracking was assesed with tourniquet inflated were chosen as a control group. From May 1999 to June 2000, a total of 221 consecutive TKAs in which patellar tracking was assessed before and after tourniquet release were selected as a study group and were placed into 1 of 3 groups: Group I (49 out of 221) were knees that tracked properly both before and after tourniquet release. Group II (150 out of 221) were knees that maltracked with the tourniquet inflated and subsequently corrected with the tourniquet deflated. Group III (22 out of 221) were knees that maltracked both before and after tourniquet release, therefore required a lateral release. The lateral release rate, patella tilt and displacement were compared among groups. RESULTS: In control group, the lateral release rate was 65.9%(83/126). The patella tilit and displacemen were 2.65+/-0.78 degree and 3.51+/-1.68 mm respectively. In study group, the lateral release rate was 10.0%(22/221). The patella tilit and displacement were 0.76+/-0.85degree and 2.96+/-1.96 mm in study group. CONCLUSION: Tourniquet application alters intraoperative patellar tracking during TKA. When contemplating lateral retinacular release, tourniquet release and reevaluation of patellar tracking should be considered.
Arthroplasty* ; Equidae ; Knee* ; Patella ; Tourniquets*

The anesthetic properties on blockade of tourniquet pain of hyperbaric tetracaine (T-caine) and bupivacaine (marcaine) with or without epinephrine administered intrathecally were compaired in randomized study involving fourty healthy surgical patients. This investigation employed solutions of the two agents with or without epinephrine that contained equal dose (13 mg), concentration (0.5%), and volume (3ml). No statistically significant difference in height, anesthetic time, tourniquet time, tourniquet pressure, and sensory blockade level were observed between the four groups. Tourniquet pain or inadequate anesthesia did not occur in epinephrine-mix groups, But occurred in 20% of the patients in the tetracaine (t-caine) group & bupivacaine (marcaine) group each other. The results suggest that equal concentrations and dosages of hyperbaric tetracaine (T-caine) and bupivacaine (Marcaine) possessed similar anesthetic qualities on blockade of tourniquet pain following subarachnoid administration.
Anesthesia ; Bupivacaine* ; Epinephrine ; Humans ; Tetracaine* ; Tourniquets*

No abstract available.
Catheterization* ; Disinfection* ; Hand Hygiene* ; Rubber* ; Tourniquets*

BACKGROUND: Rocuronium bromide is a new steroidal nondepolarizing neuromusular blocking drug characterized by a rapid onset and intermediate duration of action. I.V. rocuronium produces intense discomfort at the site of injection, so many trials have been conducted on prevention of pain induced by I.V. rocuronium. This study evaluate venous retension induced forearm was squeezed with a tourniquet, affect lidocaine efficacy. METHODS: Test was performed alert patients and unconscious patients. One group received lidocaine (0.5 mg/kg) and the other forearm was squeezed with tourniquet keeping the lidocaine (0.5 mg/kg) within the vein. After 30, 60 seconds rocuronium (0.6 mg/kg) was injected. propofol (2 mg/kg) induce patients unconsiousness. RESULTS: There was statistical difference in reduction pain and withdrawal among groups. Squeezing group showed less pain and withdrawal than no squeezing group. CONCLUSION: Venous retension induced forearm was squeezed with a tourniquet, lidocaine reduce pain and withdrawal movement more effectively.
Forearm ; Humans ; Lidocaine* ; Propofol ; Tourniquets ; Veins