CN114306895A - Saccule tip-wrapped catheter - Google Patents

Abstract

The invention relates to a medical instrument, in particular to a catheter with a protective saccule at the tail end of a head. The technical problem to be solved is to overcome the defects of the background technology, an elastic protection balloon is arranged outside the pointed top part protruding from the tail end of the urinary catheter, and the pointed top part of the urinary catheter is completely wrapped inside the protection balloon, so that the damage of the pointed top part at the tail end of the urinary catheter to the bladder wall can be avoided, and the protection effect is achieved. The invention includes head, somatic part, afterbody, there are drainage hole and fixed sacculus in the head, the fixed sacculus passes the water injection valve of fixed sacculus water injection cavity opening of the somatic part in the afterbody, the drainage hole opens the urine bag interface of the afterbody via the drainage cavity of the somatic part, characterized by that: the external part of the tip of the tail end of the head of the catheter is provided with a protective balloon which is communicated with a protective balloon water injection cavity of the body part and a protective balloon water injection valve at the tail part, the protective balloon can be expanded by water injection or inflation, and the tip of the tail end of the head of the catheter is wrapped inside the protective balloon by the expanded protective balloon.

Description

Saccule tip-wrapped catheter

Technical Field

The invention relates to a medical apparatus, in particular to a catheter with a protective saccule at the tail end of the head.

Background

Urinary catheters are medical devices used in medicine to drain urine. The most commonly used catheters today are balloon catheters. The balloon of the current ureter is used for fixing, particularly, the head of the ureter is provided with an expandable elastic balloon, the balloon is contracted in a natural state, and expands like a balloon after water is injected into the balloon from a water injection port at the tail of the ureter, and the expanded balloon is clamped in a bladder to fix the ureter and prevent the ureter from falling off. The existing balloon catheter has a section of pointed protrusion at the tail end before the balloon, and the pointed protrusion always protrudes out of the balloon no matter the fixed balloon is expanded or emptied, so that the structure becomes a natural mode. In clinical application, the tip can press the inner wall of the bladder, can cause injury such as mucosa edema, congestion and the like of the bladder wall, often causes symptoms such as hematuria, bladder pain and even urinary incontinence and the like, and increases the pain of a patient in inserting the urinary catheter. In addition, the protruding and slender tip is easily wrapped by the collapsed bladder wall, causing blockage of the drainage hole near the head. The defects exist for a long time and do not draw enough attention, the protruding spire structure of the existing ureter is habitually taken as an inherent mode, and the existing ureter has no structural design for wrapping the spire.

Disclosure of Invention

The invention aims to solve the technical problem that the defects of the background technology are overcome, an elastic protection balloon is arranged outside the pointed top part protruding from the tail end of the urinary catheter and is wrapped on the outer layer of the pointed top part, the protection balloon is expanded after water injection or inflation, and the pointed top part of the urinary catheter is completely wrapped inside the protection balloon, so that the purpose of eliminating the pointed top is achieved, and the stimulation and the damage of the pointed top part of the urinary catheter to the bladder wall are avoided. Because the contact area of the protective saccule and the bladder is large and the pressure intensity is small, and the protective saccule is soft and elastic, the damage of the tip of the tail end of the ureter to the bladder wall can be avoided, and the protective effect is achieved. The urinary catheter with the protective saccule is different from the current urinary catheter only with a fixed saccule in design and function, and is a new medical device invention capable of improving the life quality of patients.

The invention relates to a catheter with a protective saccule at the tail end of the head, which comprises a head part, a body part and a tail part, wherein the head part is provided with a drainage hole and a fixed saccule, the fixed saccule is opened at a fixed saccule water injection valve at the tail part through a fixed saccule water injection cavity of the body part, and the drainage hole is opened at a urine bag interface at the tail part through a drainage cavity of the body part, and the catheter is characterized in that: the tip of the head end of the catheter is wrapped inside the protective balloon by the expanded protective balloon, namely the tip of the head end of the catheter does not protrude out of the expanded protective balloon. The position of the tip inside the protective balloon includes, but is not limited to, protecting the center inside the balloon and protecting one side inside the balloon. The fixed saccule and the protective saccule can be respectively provided with a water injection valve and a water injection cavity, and can also share the same water injection valve and the same water injection cavity. The drainage apertures may be one or more. The drainage hole can be opened on the side wall of the catheter head and also can be opened on the protective saccule. The catheter can contain an irrigation channel which comprises an irrigation hole of the head part, an irrigation cavity of the body part and an irrigation interface of the tail part which are communicated.

The invention has the beneficial effects that: the invention changes the inherent mode structure that the tail end of the ureter is a protruding spire, the protective saccule is arranged outside the tail end spire to wrap and hide the spire, so that the tail end is spherical, the damage and stimulation to the bladder caused by the spire at the tail end of the existing ureter are avoided, the mucous membrane edema and hyperemia of the bladder wall are prevented, the complication and discomfort caused by the ureter are reduced, the life quality of a patient is improved, and no other ureter has the same design of wrapping the spire by the protective saccule as the ureter, so that the invention is an innovation with practical application significance.

Drawings

FIG. 1 is a schematic view of example 1 of the present invention;

FIG. 2 is a schematic view of example 2 of the present invention;

the reference numerals in the figures illustrate: 1. the medical device comprises a head, a body, a tail, a protective balloon, a drainage hole, a water injection hole, a drainage hole, a protection balloon water injection hole, a drainage hole, a protection balloon water injection valve, a tip, a flushing hole and a flushing hole, wherein the drainage hole is formed in the tail of the head, the tail, the drainage hole, and the drainage hole are formed in the head, and the tail.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Example 1: as shown in figure 1, the catheter with the protective saccule comprises a head part (1), a body part (2) and a tail part (3), wherein the head part (1) is distributed with the protective saccule (4), a drainage hole (5) and a fixed saccule (6), wherein the protective saccule (4) is positioned outside a tip (13) at the tail end of the head part (1) of the catheter, the body part (2) is provided with a fixed saccule water injection cavity (7), a protective saccule water injection cavity (8) and a drainage cavity (9), the tail part (3) is provided with a fixed saccule water injection valve (10), a protective saccule water injection valve (11) and a urine bag interface (12), the drainage hole (5) of the head part (1) is opened at the urine bag interface (12) of the tail part (3) through the drainage cavity (9) of the body part (2), the fixed saccule (6) of the head part (1) is opened at the fixed saccule water injection valve (10) of the tail part (3) through the fixed saccule water injection cavity (7) of the body part (2), the protection sacculus (4) of head (1) is opened in the protection sacculus water injection valve (11) of catheter afterbody (3) through the protection sacculus water injection chamber (8) of somatic part (2), and water injection or inflation can make protection sacculus (4) expand to protection sacculus water injection valve (11), and tip (13) the tip (13) of catheter head (1) are wrapped up inside protection sacculus (4) after the protection sacculus (4) expand, and tip (13) are located the inside center of protection sacculus (4).

Example 2: as shown in figure 2, the catheter with the protective saccule comprises a head part (1), a body part (2) and a tail part (3), wherein the head part (1) is distributed with the protective saccule (4), a drainage hole (5) and a fixed saccule (6), the protective saccule (4) is positioned outside a tip (13) at the tail end of the head part (1) of the catheter, the body part (2) is provided with a fixed saccule water injection cavity (7), a protective saccule water injection cavity (8), a drainage cavity (9) and a flushing cavity (14), the tail part (3) is provided with a fixed saccule water injection valve (10), a protective saccule water injection valve (11), a urine bag interface (12) and a flushing interface (15), the drainage hole (5) of the head part (1) is opened at the urine bag interface (12) of the tail part (3) through the drainage cavity (9) of the body part (2), the fixed saccule (6) of the head part (1) is opened at the fixed saccule water injection valve (10) of the tail part (3) through the fixed saccule water injection cavity (7) of the body part (2), the protection sacculus (4) of head (1) passes through protection sacculus water injection chamber (8) opening in protection sacculus water injection valve (11) of afterbody (3) of somatic part (2), to protection sacculus water injection valve (11) water injection or aerify and can make protection sacculus (4) inflation, protection sacculus (4) after the inflation wraps up catheter tip (13) of head (1) inside protection sacculus (4), tip (13) are located the inside one side of protection sacculus (4), the catheter still is provided with the washing passageway, including the washing hole (16) that are located head (1) that are linked together, the washing chamber (14) of somatic part (2), the washing interface (15) of afterbody (3), there are drainage hole (5) and washing hole (16) on protection sacculus (4), also have drainage hole (5) on the pipe wall between protection sacculus (4) and fixed sacculus (6).

Claims (7)

1. The utility model provides a catheter of end area protection sacculus of head, includes head, somatic part, afterbody, and the head has drainage hole and fixed sacculus, and fixed sacculus water injection chamber opening in the fixed sacculus water injection valve of afterbody that fixed sacculus passes through the somatic part, and the drainage hole is via the drainage chamber opening of somatic part in the urine bag interface of afterbody, its characterized in that: the external part of the tip of the tail end of the head of the catheter is provided with a protective balloon which is communicated with a protective balloon water injection cavity of the body part and a protective balloon water injection valve of the tail part, the protective balloon can be expanded by injecting or inflating water into or from the protective balloon water injection valve of the tail part of the catheter, and the tip of the tail end of the head of the catheter is wrapped inside the protective balloon by the expanded protective balloon.

2. A urinary catheter according to claim 1, wherein: the tip part at the top end of the head part of the catheter is wrapped after the protective bag is expanded, so that the tip part does not protrude out of the expanded protective bag.

3. A urinary catheter according to claim 1, wherein: the position of the tip of the tail end of the catheter head in the protective balloon comprises but is not limited to protecting the inner center of the balloon and protecting one side of the inner part of the balloon.

4. A urinary catheter according to claim 1, wherein: the fixed saccule and the protective saccule can be respectively provided with a water injection valve and a water injection cavity, and can also share the same water injection valve and the same water injection cavity.

5. A urinary catheter according to claim 1, wherein: the drainage apertures may be one or more.

6. A urinary catheter according to claim 1, wherein: the drainage hole can be opened on the side wall of the catheter head and also can be opened on the protective saccule.

7. A urinary catheter according to claim 1, wherein: the catheter can contain an irrigation channel which comprises an irrigation hole of the head part, an irrigation cavity of the body part and an irrigation interface of the tail part which are communicated.

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