Progress is described regarding the development of a new electrotactile feedback glove designed for application to dexterous robot. The sensitivity of operator's finger against electrical stimulus pulse is conside...Progress is described regarding the development of a new electrotactile feedback glove designed for application to dexterous robot. The sensitivity of operator's finger against electrical stimulus pulse is considered. It is found that frequency, duty ratio, and voltage amplitude of electrical stimulus pulse determine the sensitivity of finger. The effects of materials, sizes, arrangements and shapes of electrodes on sensitivity of finger are analyzed. Finally, the tactile tele presence system is designed to experimentally confirm that the robot with electrotactile feedback glove can manipulate dexterous robotic multi fingered hand and identify and classify three sorts of objects.展开更多
Objective To search the etiologic factor, clinical diagnosis points and treatment of postoperative intussusception （ PI ）.Methods To retrospectively review the clinical materials of 14 cases with PI including the ca...Objective To search the etiologic factor, clinical diagnosis points and treatment of postoperative intussusception （ PI ）.Methods To retrospectively review the clinical materials of 14 cases with PI including the cause of disease and treatment.Results PI occurred within 10 days （average 4 days） after the primary operation. Bowel obstructive symptoms gradually emerged. One case was diagnosed with intussusception by sonography and received enema reduction of intussusception by hydrostatic pressure. Thirteen cases were performed secondary operation. Small intestine was main site of intussu- sception. Manual reduction of the lesion was performed in 12 cases and bowel resection and anastomosis was done in 1 case with bowel necrosis. Conclusion PI should be suspected if child presents with the symptoms of ileus in early postoperative period. Abdominal sonography may have some value on diagnosis of Pl. Operation is the first choice for the treatment of PI.展开更多
The composition of ashes stemming from the burning of medical waste is similar to that of urban waste. Specific pieces of evidence are looked for that allowed distinguishing some components in those waste products. A ...The composition of ashes stemming from the burning of medical waste is similar to that of urban waste. Specific pieces of evidence are looked for that allowed distinguishing some components in those waste products. A selection is carried out and some elements are included in a glass matrix. An unexpected result is presented here. It is possible to differentiate sterile and non-sterile medical gloves. The main difference is the relative amounts of calcium, in glass forming. Glasses are manufactured with a mono-ammonium phosphate since it is a natural product in Morocco. Several compositions are tried and studied. These compositions are expressed in usual two ternary and one quaternary systems built with the four equivalent components： SiO2, A1203, P205 and CaO and then compared to a patented composition.展开更多
AIM： To evaluate 20 adults with intussusception and to clarify the cause, clinical features, diagnosis, and management of this uncommon entity. METHODS： A retrospective review of patients aged 〉 18 years with a dia...AIM： To evaluate 20 adults with intussusception and to clarify the cause, clinical features, diagnosis, and management of this uncommon entity. METHODS： A retrospective review of patients aged 〉 18 years with a diagnosis of intestinal intussusception between 2000 and 2008. Patients with rectal prolapse, prolapse of or around an ostomy and gastroenterostomy intussusception were excluded. RESULTS： There were 20 rases of adult intussusception. Mean age was 47.7 years. Abdominal pain, nausea, and vomiting were the most common symptoms. The majority of intussusceptions were in the small intestine （85%）. There were three （15%） cases of colonic intussusception. Enteric intussusception consisted of five jejunojejunal cases, nine ileoileal, and four cases of ileocecal invagination. Among enteric intussusceptions, 14 were secondary to a benign process, and in one of these, the malignant cause was secondary to metastatic lung adenocarcinoma. All colonic lesions were malignant. All cases were treated surgically. CONCLUSION： Adult intussusception is an unusual and challenging condition and is a preoperative diagnostic problem. Treatment usually requires resection of the involved bowel segment. Reduction can be attempted in small-bowel intussusception if the segment involved is viable or malignancy is not suspected; however, a more careful approach is recommended in colonic intussusception because of a significantly higher coexistence of malignancy.展开更多
In contrast to open degloving injury, extensive closed internal degloving injury (CIDI) is rare, especialy followed by deep injury with bone-articular and neurovascular complications after initial trauma.1-3 Clinicall...In contrast to open degloving injury, extensive closed internal degloving injury (CIDI) is rare, especialy followed by deep injury with bone-articular and neurovascular complications after initial trauma.1-3 Clinically, it 05- be misdiagnosed or mismanaged leading to delayed full-thickness necrosis of the avulsed skin flap and development of wound sepsis, 3 even limbs disability.4 A number of reports have advocated several means for treatment of CIDI1,3,5,6 but they are not ideal.1,6,7 Since 1987 we have treated 132 degloving injuries, 18 (13.6%) of whom were CIDI in the peripelvis and lower limbs. According to the severity of CIDI, it has been managed by replantation of defatted full-thickness degloved skin with refined techniques as salvage procedures for the avulsed skin, and defect coverage with several myocutaneous flaps for denuded wound of specialized areas. Our purpose is to stress the importance of simultaneous management of both CIDI and deep injury and proper options of resurface procedures to provide better appearance and function of limbs.展开更多
The degloving injuries of the digits and palm remain a persistent challenge. We used an anterolateral thigh flap to treat an 18-year-old, right-handed male worker with degloving injuries of the index, middle and ring ...The degloving injuries of the digits and palm remain a persistent challenge. We used an anterolateral thigh flap to treat an 18-year-old, right-handed male worker with degloving injuries of the index, middle and ring fingers. The flap was designated to wrap the entire circumference of three fingers sustaining degloving injury and to form mitten-hand. The total lengths of the distal phalanxes of three fingers were retained almost complete. The donor defect was covered with split-thickness skin graft. Three months after the first operation, roentgenograms revealed terminal phalanxex resorption in three injured fingers, and the surgical syndactyly between the middle and ring finger was separated at the same time. One month later, the syndactyly between the index and middle fingers was also separated. Good coverage of the soft tissue defects with good function and appearance was achieved. Therefore, we considered that the length of the degloved finger could be preserved using free flap.展开更多
文摘Progress is described regarding the development of a new electrotactile feedback glove designed for application to dexterous robot. The sensitivity of operator's finger against electrical stimulus pulse is considered. It is found that frequency, duty ratio, and voltage amplitude of electrical stimulus pulse determine the sensitivity of finger. The effects of materials, sizes, arrangements and shapes of electrodes on sensitivity of finger are analyzed. Finally, the tactile tele presence system is designed to experimentally confirm that the robot with electrotactile feedback glove can manipulate dexterous robotic multi fingered hand and identify and classify three sorts of objects.
文摘Objective To search the etiologic factor, clinical diagnosis points and treatment of postoperative intussusception （ PI ）.Methods To retrospectively review the clinical materials of 14 cases with PI including the cause of disease and treatment.Results PI occurred within 10 days （average 4 days） after the primary operation. Bowel obstructive symptoms gradually emerged. One case was diagnosed with intussusception by sonography and received enema reduction of intussusception by hydrostatic pressure. Thirteen cases were performed secondary operation. Small intestine was main site of intussu- sception. Manual reduction of the lesion was performed in 12 cases and bowel resection and anastomosis was done in 1 case with bowel necrosis. Conclusion PI should be suspected if child presents with the symptoms of ileus in early postoperative period. Abdominal sonography may have some value on diagnosis of Pl. Operation is the first choice for the treatment of PI.
文摘The composition of ashes stemming from the burning of medical waste is similar to that of urban waste. Specific pieces of evidence are looked for that allowed distinguishing some components in those waste products. A selection is carried out and some elements are included in a glass matrix. An unexpected result is presented here. It is possible to differentiate sterile and non-sterile medical gloves. The main difference is the relative amounts of calcium, in glass forming. Glasses are manufactured with a mono-ammonium phosphate since it is a natural product in Morocco. Several compositions are tried and studied. These compositions are expressed in usual two ternary and one quaternary systems built with the four equivalent components： SiO2, A1203, P205 and CaO and then compared to a patented composition.
文摘AIM： To evaluate 20 adults with intussusception and to clarify the cause, clinical features, diagnosis, and management of this uncommon entity. METHODS： A retrospective review of patients aged 〉 18 years with a diagnosis of intestinal intussusception between 2000 and 2008. Patients with rectal prolapse, prolapse of or around an ostomy and gastroenterostomy intussusception were excluded. RESULTS： There were 20 rases of adult intussusception. Mean age was 47.7 years. Abdominal pain, nausea, and vomiting were the most common symptoms. The majority of intussusceptions were in the small intestine （85%）. There were three （15%） cases of colonic intussusception. Enteric intussusception consisted of five jejunojejunal cases, nine ileoileal, and four cases of ileocecal invagination. Among enteric intussusceptions, 14 were secondary to a benign process, and in one of these, the malignant cause was secondary to metastatic lung adenocarcinoma. All colonic lesions were malignant. All cases were treated surgically. CONCLUSION： Adult intussusception is an unusual and challenging condition and is a preoperative diagnostic problem. Treatment usually requires resection of the involved bowel segment. Reduction can be attempted in small-bowel intussusception if the segment involved is viable or malignancy is not suspected; however, a more careful approach is recommended in colonic intussusception because of a significantly higher coexistence of malignancy.
文摘In contrast to open degloving injury, extensive closed internal degloving injury (CIDI) is rare, especialy followed by deep injury with bone-articular and neurovascular complications after initial trauma.1-3 Clinically, it 05- be misdiagnosed or mismanaged leading to delayed full-thickness necrosis of the avulsed skin flap and development of wound sepsis, 3 even limbs disability.4 A number of reports have advocated several means for treatment of CIDI1,3,5,6 but they are not ideal.1,6,7 Since 1987 we have treated 132 degloving injuries, 18 (13.6%) of whom were CIDI in the peripelvis and lower limbs. According to the severity of CIDI, it has been managed by replantation of defatted full-thickness degloved skin with refined techniques as salvage procedures for the avulsed skin, and defect coverage with several myocutaneous flaps for denuded wound of specialized areas. Our purpose is to stress the importance of simultaneous management of both CIDI and deep injury and proper options of resurface procedures to provide better appearance and function of limbs.
文摘The degloving injuries of the digits and palm remain a persistent challenge. We used an anterolateral thigh flap to treat an 18-year-old, right-handed male worker with degloving injuries of the index, middle and ring fingers. The flap was designated to wrap the entire circumference of three fingers sustaining degloving injury and to form mitten-hand. The total lengths of the distal phalanxes of three fingers were retained almost complete. The donor defect was covered with split-thickness skin graft. Three months after the first operation, roentgenograms revealed terminal phalanxex resorption in three injured fingers, and the surgical syndactyly between the middle and ring finger was separated at the same time. One month later, the syndactyly between the index and middle fingers was also separated. Good coverage of the soft tissue defects with good function and appearance was achieved. Therefore, we considered that the length of the degloved finger could be preserved using free flap.
