We propose and simulate a method for generating a three-dimensional （3D） optical cage in the vicinity of focus by focusing a double-ring shaped radially and azimuthally polarized beam. Our study shows that the combi...We propose and simulate a method for generating a three-dimensional （3D） optical cage in the vicinity of focus by focusing a double-ring shaped radially and azimuthally polarized beam. Our study shows that the combination of an inner ring with an azimuthally polarized field and an outer ring with a radially polarized field and a phase factor can produce an optical cage with a dark region enclosed by higher intensity. The shape of the cage can be tailored by appropriately adjusting the parameters of double-mode beams. Furthermore, multiple 3D optical cages can be realized by applying the shift theorem of the Fourier transform and macro-pixel sampling algorithm to a double-ring shaped radially and azimuthally polarized beam.展开更多
[目的]评价一种新型翼形钛网在退行性颈椎病前路手术中应用的临床效果。[方法]应用该椎间融合器治疗退变性颈椎病27例,男18例,女9例;颈椎间盘突出（herniation of cervical disc,CDH）19例,后纵韧带钙化（ossification of posterior lon...[目的]评价一种新型翼形钛网在退行性颈椎病前路手术中应用的临床效果。[方法]应用该椎间融合器治疗退变性颈椎病27例,男18例,女9例;颈椎间盘突出（herniation of cervical disc,CDH）19例,后纵韧带钙化（ossification of posterior longitudinal ligament,OPLL）8例;单节段病变21例,双节段病变6例。术前均经X线及MRI排除骨折、脱位。手术方式采用椎体次全切除减压,新型翼形钛网内植骨及螺钉内固定。[结果]本组27例随访6~14个月,平均10个月,植骨融合时间平均10周,术后3、6及12个月复查X线未见钛网松动、脱出、塌陷。[结论]该翼形钛网内固定植入能提供颈椎次全切除后脊柱即时稳定性,术后可避免钛网移位,塌陷、脱出。手术操作简单安全,不需取髂骨,同时减轻患者经济负担。且为弹性固定,骨融合率高。展开更多
基金supported in part by the National Natural Science Foundation of China(Nos.91750202,11530046,and 11474156)the National Key R&D Program of China(No.2017YFA0303700)+1 种基金the Collaborative Innovation Center of Advanced Microstructures of Chinathe Collaborative Innovation Center of Solid-State Lighting and Energy-Saving Electronics of China
文摘We propose and simulate a method for generating a three-dimensional （3D） optical cage in the vicinity of focus by focusing a double-ring shaped radially and azimuthally polarized beam. Our study shows that the combination of an inner ring with an azimuthally polarized field and an outer ring with a radially polarized field and a phase factor can produce an optical cage with a dark region enclosed by higher intensity. The shape of the cage can be tailored by appropriately adjusting the parameters of double-mode beams. Furthermore, multiple 3D optical cages can be realized by applying the shift theorem of the Fourier transform and macro-pixel sampling algorithm to a double-ring shaped radially and azimuthally polarized beam.
文摘[目的]评价一种新型翼形钛网在退行性颈椎病前路手术中应用的临床效果。[方法]应用该椎间融合器治疗退变性颈椎病27例,男18例,女9例;颈椎间盘突出（herniation of cervical disc,CDH）19例,后纵韧带钙化（ossification of posterior longitudinal ligament,OPLL）8例;单节段病变21例,双节段病变6例。术前均经X线及MRI排除骨折、脱位。手术方式采用椎体次全切除减压,新型翼形钛网内植骨及螺钉内固定。[结果]本组27例随访6~14个月,平均10个月,植骨融合时间平均10周,术后3、6及12个月复查X线未见钛网松动、脱出、塌陷。[结论]该翼形钛网内固定植入能提供颈椎次全切除后脊柱即时稳定性,术后可避免钛网移位,塌陷、脱出。手术操作简单安全,不需取髂骨,同时减轻患者经济负担。且为弹性固定,骨融合率高。
