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Biomedical subjects

W G Selley

Publications and source records attributed to W G Selley.

24 records · Page 2Linked to original sources

Swallowing difficulties in stroke patients: a new treatment.

Difficulty with swallowing is one of the most distressing symptoms experienced by patients who have suffered strokes and one which previously has been particularly difficult to help. An intra-oral appliance which stimulates the involuntary swallowing mechanism has been tested with 170 consecutive stroke patients with dysphagia and drooling, and the results show substantial improvement. The appliance is relatively cheap to construct and fit, requiring little professional time. It is worn during the whole day, helping to rehabilitate the swallowing mechanism with saliva as well as with food and drink. The treatment is appropriate for patients in hospital or at home and avoids the use of medication.

Adult↗

Superimposition of analogue data onto a video image: a new technique.

There are many tools to aid the clinician in making an accurate medical diagnosis including various imaging techniques and recording analogue signals from the patient. A new, inexpensive method of combining a video image and the instantaneous values of analogue waveforms is described here. The system, TVDATA, is reliable, compact and portable and has been successfully used in various clinical situations. The unit requires a standard video source, such as a camera, a TV monitor, a video recorder and the output from the analogue source or sources. The analogue data are converted into a digital signal and then displayed in a convenient part of the screen as a horizontal bar. Two types of data channel are available--uni- and bidirectional. A number of these channels can be used to record different analogue parameters and an inbuilt octal frame counter assists subsequent review of the video record.

Analog-Digital Conversion↗