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Liquid bag catheter for emptying intestinal canal

A catheter and jejunum technology, applied in the direction of the catheter, can solve the problems of difficult return of the catheter, adverse effects and loss of the jejunum, etc., and achieve the effects of smooth operation, simple structure and pain relief.

Inactive Publication Date: 2008-05-14
浙江迅康医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the catheter of this patent is used to infuse nutrient solution into the jejunum, the liquid bag formed by the expansion of the film at the front end of the catheter must be broken. This method of destroying the liquid bag has the following defects: ① Due to the strong stretchability of the material used to make the film, when the liquid sac is broken, the liquid sac will expand exponentially at first, which will undoubtedly have an adverse effect on the jejunum with limited space; When the reverse flow of the catheter is caused by the reverse peristalsis of the tract, it is difficult for the catheter to return to the predetermined position, and the function of the catheter to infuse liquid to the predetermined position is also lost.

Method used

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  • Liquid bag catheter for emptying intestinal canal
  • Liquid bag catheter for emptying intestinal canal
  • Liquid bag catheter for emptying intestinal canal

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Embodiment Construction

[0018] Such as Figure 1~3 The shown catheter is surrounded by an integral tube wall to form an outer lumen 4 and an inner lumen 3; the front end of the outer lumen 4 is blocked, and the rear end is connected with a connection port 5, which is on the side wall adjacent to the capsule 1 There are three through holes 6; the front end of the inner lumen 3 communicates with the liquid sac 1, and its rear end is drawn out from the outer lumen 4 and connected to a connection port 5; a thin guide wire 2 is also placed in the outer lumen 4 . As a jejunal catheter, the diameter of the outer lumen 4 is usually 3.0-3.5 mm, and the diameter of the inner lumen 3 is usually 0.5-0.6 mm.

[0019] Such as Figure 4 The guide tube shown has a longitudinal slit 9 with a length equivalent to the size of the capsule 1 on its front end side wall. The front end of the longitudinal slit 9 is a round hole 10, and its rear end is a wedge-shaped mouth 11. This guide tube can be inserted into the exist...

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Abstract

A catheter with liquid bag for perfusing liquid into stomach and intestine has at least two cavities isolated mutually and surrounded by flexible wall. It features that a liquid bag is arranged in the front of one cavity and at least one through hole is made up on its front wall. Its advantages are simple structure, smooth moving, and less pain of patient.

Description

【Technical field】 [0001] The invention relates to a medical device, in particular to a liquid bag jejunum catheter for infusing liquid into the gastrointestinal tract. 【Background technique】 [0002] It has been proved safe and effective to infuse enteral nutrition solution into duodenum or jejunum after abdominal operation for early postoperative enteral nutrition. In the past, nutrient solution infusion was mainly performed through jejunostomy during surgery, which inevitably brought additional surgical trauma and catheterization complications to patients. Therefore, in current clinical operations, a nasogastric tube with a "tube-in-tube" structure is often used, and the utility model patent with the notification number CN2302802Y represents the leading technology of this "tube-in-tube". However, when the catheter of this patent is used to infuse nutrient solution into the jejunum, the liquid bag formed by the expansion of the film at the front end of the catheter must be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/00A61M25/14
Inventor 陈一奇
Owner 浙江迅康医疗器械有限公司
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