Endoscope visual field-securing viscoelastic composition
A composition and viscoelastic technology, applied in endoscopy, application, drug delivery, etc., can solve the problems of difficulty in removing blood, inability to ensure visual field, and difficulty in hemostasis treatment of bleeding sites, and achieve the effect of clear vision and maintenance of vision.
Pending Publication Date: 2021-07-23
JICHI MEDICAL UNIVERSITY +1
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Problems solved by technology
However, this method also has the following problem: Although the visual field is temporarily secured by removing the liquid and semi-solid substances inside the tube, it is difficult to remove the blood when there is a bleeding site, and the visual field cannot be secured, so the bleeding site The determination and operation of hemostatic treatment are accompanied by difficulties
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[0066] Reference example
[0067] The endoscope can be inserted into a digestive tube such as rectum, and the digestive tube is observed by endoscope. When the digestive tube 4 is bleeding, the blood 3 in the digestive tube is accommodated and the bleeding site 2 is not observed. Figure 2A ). At this time, attempts to fill from the syringe to the syringe, the water passes through the opening of the endoscope front end portion 1 by the syringe 13, the pliers port 15, and the pliers passage, and the accumulated blood is flushed away by water. However, the blood accumulated and sent together and suspended, becomes a turbid water 3 ". When the turbid water 3" In the digestive tube, the field of view was turbid 3 "covering, unable to observe the bleeding site 2, unable to continue processing ( Figure 2b , image 3 ).
[0068] It should be noted that the viscoelastic composition according to the present invention, such as Figure 4A , Figure 4b As shown in the case where the bleeding port...
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Abstract
The present invention relates to an endoscope visual field-securing viscoelastic composition containing a thickening substance and water, the composition having a shear storage elastic modulus G' of 0.7 Pa or higher, and to a method for securing the endoscope visual field, comprising sending the viscoelastic composition from the endoscope proximal part, through a channel, to the endoscope forward end portion. The viscoelastic composition or method according to the present invention can be used suitably, in particular, for securing the endoscope visual field, when an opaque, densely colored liquid or semi-solid has accumulated in the interior of a tube and blocked the endoscope visual field, by pushing aside the liquid or the semi-solid, or for securing the endoscope visual field when the endoscope visual field has been blocked by continuous bleeding in the interior of a tube.
Description
Technical field [0001] The present invention relates to a viscoelastic composition suitable for ensuring the field of view of the endoscope, and a method of ensuring the viscous elastic composition to ensure the field of view of the endoscope. More specifically, a viscoelastic composition suitable for the use of the use of the viscoelastic composition is used to ensure the field of view of the endoscope, which is a dark liquid that affects the field of view inside the tube. When the semi-solid substance is covered with the visual field of the endoscope, the liquid, semi-solid substance is pushed to ensure the use of the field of view of the endoscope or covered by the persistent bleeding inside the endoscope. When ensuring the use of the field of view of the endoscope. Background technique [0002] The endoscope is used to observe the interior of the digestive tube, bile duct and other thin tubes. However, in the case where there is a semi-solid matter such as blood, intestinal, ...
Claims
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IPC IPC(8): A61B1/00A61L31/14
CPCA61L31/14A61L31/042A61B1/015A61L24/08A61L24/001A61L2400/16A61L2400/06A61B1/012
Inventor 矢野智则大畑淳平木勇次
Owner JICHI MEDICAL UNIVERSITY