Surgical apparatus and instruments for use in a colonoscopy, gastroscopy, sigmoidoscopy, namely, colonoscopes, gastroscopes, sigmoidoscopes, endoscopes and attachments for the aforementioned; medical apparatus and instruments for use in a colonoscopy, gastroscopy, sigmoidoscopy namely, colonoscopes, gastroscopes, sigmoidoscopes and attachments for colonoscopes, gastroscopes, sigmoidoscopes; veterinary apparatus and instruments for use in colonoscopy, gastroscopy, sigmoidoscopy, namely, colonoscopes, gastroscopes, sigmoidoscopes and attachments for colonoscopes, gastroscopes, sigmoidoscopes