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Catheter with expansion bags

A technology of urinary catheter and expansion bladder, applied in the field of urinary catheter, can solve the problems of ischemia and necrosis of bladder mucosa, aggravate patients' discomfort symptoms, and poor catheterization, so as to ensure normal catheterization, prevent poor catheterization and The effect of repeated stimulation and prevention of discomfort

Pending Publication Date: 2018-12-11
THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The urinary catheter with this structure has the following defects during use: after the catheter is inflated and positioned by the positioning balloon, on the one hand, the tip of the catheter located in front of the positioning balloon can be inserted into the soft bladder mucosa and cause local bladder mucosal ischemia Necrosis aggravates the patient's discomfort, and this structure is also one of the main causes of bladder perforation; on the other hand, since the catheter opening of this structure is located on the side wall of the catheter, if the side wall of the catheter After the bladder mucosa is closely attached, it is easy to cause poor catheterization, and the position of the catheter needs to be repositioned, which will aggravate the discomfort symptoms of the patient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 1 with figure 2 , the urinary catheter with an inflatable bag includes a urinary catheter 1, and an expansion positioning bag 2 arranged on the urinary catheter 1, in the present embodiment, the lumen of the urinary catheter 1 is a urinary catheter cavity 4, and the urinary catheter The tube wall of the tube 1 is provided with a filling water injection channel chamber 3, which is integrally molded by silica gel into a double-lumen tubular structure with a filling water injection channel cavity 3 and a urinary catheterization channel cavity 4, wherein the rear end of the filling water injection channel cavity 3 extends backward to form a horn The mouth-shaped water injection connection part 8 is used to connect the one-way valve, and the rear end of the urinary catheter cavity 4 extends backward to form a trumpet-shaped urine collection bag connection part 7 . The expansion positioning bag 2 is in a C-shaped arc structure and surrounds the end of the urinary...

Embodiment 2

[0029] see image 3 with Figure 4 The difference between Embodiment 2 and Embodiment 1 is that a flushing water injection channel cavity 9 is integrally formed on the tube wall of the catheter 1, and the shape of the rear end of the flushing water injection channel cavity is the same as that of the filling water injection channel cavity. The water outlet of the flushing water injection channel chamber 9 is located at the end of the catheter 1 and is located next to the second catheterization inlet 6 , and the water outlet of the irrigation water injection channel chamber 9 is larger than the second catheterization inlet 6 . Water can be injected into the patient's bladder through the flushing water injection channel cavity, and the injected water flows through the first urinary catheterization inlet after flushing the bladder, and the second urinary catheterization inlet is discharged from the urinary catheterization channel cavity to play a circular flushing role. All the o...

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Abstract

The invention relates to a catheter with expansion bags. The catheter comprises a catheter body and the expansion locating bags arranged on the catheter body, and the expansion locating bags surroundthe end of the catheter body in a C-shaped major-arc structure; after the expansion locating bags are filled and expanded, the bag walls of the front ends of the expansion locating bags are flush withor exceed the front end of the end of the catheter body, a catheter cavity of the catheter body is a catheterization channel cavity, and a first catheterization inlet and a second catheterization inlet are formed in the end of the catheter body; the first catheterization inlet is formed in the side wall of the end of the catheter body and located in a C-shaped opening of the expansion locating bags, the second catheterization inlet is located in the front end of the end of the catheter body, the catheter wall of the catheter body is provided with a filling and water-injecting channel cavity,and the filling and water-injecting channel cavity is communicated with the expansion locating bags. The catheter is simple in structure, low in production cost and convenient to operate, and the situation that the bladder mucous membranes are damaged when the front end of the end of the catheter body is stimulated can be effectively avoided; meanwhile, smoothness of catheterization of the catheter body is guaranteed, and the safety of retaining the catheter body for a long term and the patient tolerance are improved.

Description

technical field [0001] The invention relates to the field of clinical medical equipment, in particular to a urinary catheter with an inflatable bladder. Background technique [0002] Catheterization is one of the common medical operations in clinical practice. It is suitable for urinary retention caused by lower urinary tract obstruction. Catheterization is also used in the rescue of critically ill patients, preparation before general anesthesia, intravesical drug infusion or bladder flushing, etc. . Among the patients who need catheterization for various reasons, quite a few patients need long-term (more than 3 days) indwelling catheter in the bladder. The catheter indwelling in the bladder as a foreign body can irritate the bladder mucosa and cause local inflammation and bladder irritation symptoms in patients. The catheter itself may even damage the bladder mucosa. Some patients have reported bladder perforation due to long-term indwelling catheters. [0003] The cathet...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61M1/00A61M3/02
CPCA61M3/0283A61M25/0017A61M25/1002A61M2025/0037A61M1/69
Inventor 王永权
Owner THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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