公开(公告)号：US5474075A

公开(公告)日：1995-12-12

申请号：US157640

申请日：1993-11-24

Applicant: Barry B. Goldberg ,  Ji-Bin Liu ,  Robert M. Steiner

Inventor： Barry B. Goldberg ,  Ji-Bin Liu ,  Robert M. Steiner

IPC: A61B8/12 ,  A61B10/00 ,  A61B10/02 ,  A61B17/22 ,  A61B17/32

CPC classification number: A61B10/02 ,  A61B8/12 ,  A61B8/445 ,  A61B8/4461 ,  A61B2010/0216 ,  A61B2017/22072 ,  A61B2017/320012

Abstract: Miniature catheter-based ultrasound transducers are used to image peritracheal or bronchial structures including masses, lymph nodes, and vessels. Most preferably, a 6.2 French catheter containing either a 12.5 or 20 MHz ultrasound transducer coupled with an ultrasound unit is passed through the working channel of a flexible bronchoscope and directed to the region of interest. Patients with pulmonary masses detected by X-ray or computed tomography were studied and it was found that characteristic ultrasound patterns of masses, lymph nodes and blood vessels could be distinguished. Thus, catheter-based ultrasound transducers are useful to evaluate a variety of bronchopulmonary abnormalities. This approach was found to be valuable in the selection of the appropriate site for biopsy. In accordance with the present invention, an improved ultrasound catheter that incorporates a biopsy brush is therefore disclosed.

Abstract translation: 微型导管超声换能器用于成像气管内或支气管结构，包括肿块，淋巴结和血管。 最优选地，包含与超声单元耦合的12.5或20MHz超声波换能器的6.2法国导管通过柔性支气管镜的工作通道并被引导到感兴趣的区域。 研究了通过X线检查或计算机断层扫描检测肺部肿块的患者，发现肿块，淋巴结和血管的特征超声图案可以区分开来。 因此，基于导管的超声换能器可用于评估各种支气管肺异常。 发现这种方法在选择适当的活检部位是有价值的。 因此，根据本发明，公开了一种结合活检刷的改进的超声导管。