PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 12583089

[A minitype acceleration circulation device].

F Zheng·C Cheng
View original source ↗Export metadata ↓

Abstract

This devices uses the circular pulsating air pressure to apply the contracting and stretching actions to the patient's extremities section by section, for promoting the back flow of vein blood and lymph in the extremities. It has better functions in prevention and cure of extremities' edema and vein twist expansion in lower limbs that caused by various block of circulation as well as the forming of vein thrombus in the bedfast patients for a long time.

Explore related subjects

Equipment DesignExtremitiesHumansPhysical Therapy ModalitiesVenous ThrombosisEnglish AbstractJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

F Zheng, C Cheng. 1999. [A minitype acceleration circulation device].. https://pubmed.ncbi.nlm.nih.gov/12583089/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2003

Modification of Gill-Thomas-Cosman frame for extracranial head-and-neck stereotactic radiotherapy.

PURPOSE: A modification of a commercially available, noninvasive, relocatable, stereotactic Gill-Thomas-Cosman (GTC) head frame is presented for treatment of extracranial lesions of the head and neck, base of the skull, and inferior nasopharyngeal region. METHODS AND MATERIALS: Skull-based and nasopharyngeal lesions cannot be treated with the GTC frame because it obstructs the beam path. To treat those lesions, the GTC frame was modified without compromising the integrity, flexibility, or use of the treatment software. The modification uses a set of aluminum extension rods of variable lengths and bevels to support a modified dental plate. The extension rods allow the dental tray and attached GTC frame to be lowered so that the more inferior regions may be treated. Ten patients underwent CT with the modified frame and CT localizer. For some patients, MRI was acquired without the frame. Image fusion of MRI and CT scans was used to delineate the target volume, and planning was done with the existing software for proper treatment. RESULTS: The modification of the GTC frame has been successful in imaging, planning, and extending the treatment domain for the base of the skull, nasopharyngeal regions, and other superior lesions of the head and neck. The reproducibility of the modified frame and the patient localization helmet technique was identical to that of the unmodified frame. CONCLUSION: The modification of the GTC frame is simple and accurate. It provides flexibility in treating an extended range of the base of the skull, nasopharyngeal region, and other superior lesions of the head and neck that otherwise could not be treated with the GTC frame.

Equipment Design↗
PubMed2003

Virus particle detection by solid phase immunocapture and atomic force microscopy.

A novel application of atomic force microscopy (AFM) in the rapid, label-free detection and identification of viruses is described. Multiplexed, miniaturized antibody domains were constructed using "ink-jet" protein arraying technology. The solid-phase affinity substrate termed the "ViriChip" was used in the immunocapture of bacteriophage fd, canine parvoviruses, and coxsackieviruses and analyzed by AFM. Immunocapture was found to be antibody-specific with a sensitivity of 10(8)pfu/ml in 30min. Virus binding was found to be linear for concentration between 10(8) and 10(10)pfu/ml and did not reach saturation through 4h.

Equipment Design↗
PubMed2003

Near simultaneous computed tomography image-guided stereotactic spinal radiotherapy: an emerging paradigm for achieving true stereotaxy.

PURPOSE: To report treatment setup data from an emerging technique using near-simultaneous computed tomography (CT) image-guided stereotactic radiotherapy for the treatment of spinal and paraspinal tumors. METHODS AND MATERIALS: A targeting system that integrates a CT-on-rails scanner with a linear accelerator (LINAC) was evaluated in the lead-in portion of a Phase I/II protocol for treating patients with paraspinal metastases. Patients were immobilized in supine position by a moldable body cushion vacuum wrapped with a plastic fixation sheet. Planning CT and immediately repeated CT were performed on the LINAC/CT-on-rails unit to assess respiratory-related vertebral body motion. Coplanar intensity-modulated radiotherapy (IMRT) using 7-9 beams was used to deliver 30 Gy in five fractions to the target volume, while limiting the spinal cord dose to <10 Gy. Pretreatment CT scans were fused with the planning CT scans to determine the correct target isocenter by accounting for any translational and roll (axial) rotational discrepancies from the planning CT. (Corrections caused by yaw and pitch rotations have not yet been implemented.) The reproducibility of the treatment isocenter as compared with the planned isocenter was measured with digitally reconstructed radiographs (DRRs), portal film imaging, and immediate post-treatment verification CT scans. Phantom measurements were taken for dose verification for each IMRT plan. RESULTS: Based on a total of 36 CT scans (3 for planning, 3 for respiration study, 15 pretreatment, and 15 post-treatment) from 3 patients, no respiration-associated vertebral body motion was seen. A comparison of the corrected daily anterior-posterior (AP) and lateral (LAT) digital portal images with the planning AP and LAT DRRs confirmed that the isocenter setup accuracy for the 15 treatments was within 1 mm of the planning isocenter. The results from the immediate post-treatment CT scans reconfirmed the findings from the portal images and verified the absence of spinal movement during the treatment. The ion-chamber measurement for the high-dose region was within 2% of the planning dose for three patient treatment plans. Film dose measurement in an IMRT quality assurance phantom demonstrated good agreement from 90% to 30% isodose lines between the planned and measured results. CONCLUSION: Preliminary experience suggests that the near-simultaneous CT image-guided verification technique can be used as a new platform technology for extracranial applications of stereotactic radiotherapy and radiosurgery to spinal and paraspinal tumors.

Equipment Design↗