CN220046800U - Catheter - Google Patents

Abstract

The utility model discloses a catheter which comprises a catheter body, and an inner end part of a bladder, a water sac part and an outer end part of the bladder which are connected together through the catheter body, wherein the inner end part of the bladder is smooth arc-shaped, the tail end of the inner end part of the bladder is closed, and at least 1 drainage hole is arranged on the side surface of the smooth arc-shaped part of the inner end part of the bladder. Therefore, the inner end part of the urinary catheter is designed into a circular sliding arc shape, so that the sharp end part of the urinary catheter is prevented from stimulating the urinary mucosa, the stimulation of the urinary mucosa is reduced, the damage of the mucosa caused by puncturing the mucosal wall can be avoided, the safety of the long-term indwelling urinary catheter and the tolerance of a patient are improved, and the uncomfortable feeling of the patient is relieved. The catheter is prevented from falling off after the water sac leaks, and the guide wire can be arranged in the catheter, so that the operation of inserting is facilitated, and meanwhile, the position adjustment is also facilitated during the urine leakage.

Description

Catheter

Technical Field

The utility model relates to the field of medical instruments, in particular to a catheter.

Background

Many patients need to rely on a catheter to realize urination, while the end part of the traditional catheter is pointed, if the bladder of the patient is normal, the pointed end part generally does not touch the bladder wall, but the bladder of many patients is retracted, so that even if the part of the catheter in the bladder is very short, the pointed part still touches the bladder wall, and the stimulation is generated on the bladder wall, so that the discomfort of the patient is caused.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: a urinary catheter with little irritation to the bladder is provided.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a catheter comprises a catheter body, and an inner end part of a bladder, a water sac part and an outer end part of the bladder which are connected together through a catheter body, wherein the inner end part of the bladder is smooth arc-shaped, and the diameter of the catheter body is smaller than 6mm.

Compared with the prior art, the utility model has the following technical effects:

the catheter head end is designed into a circular slip arc shape, so that the sharp end of the catheter is prevented from stimulating bladder mucosa, the bladder mucosa is reduced, the mucous membrane wall can be prevented from being pricked, the mucous membrane injury is caused, the safety of the long-term indwelling catheter and the tolerance of a patient are improved, and the discomfort of the patient is relieved. The falling-off condition of the catheter after the water sac leaks is avoided.

On the basis of the technical scheme, the utility model can be improved as follows.

Preferably, the inner bladder end is made of polyurethane, and the inner bladder end surface is coated with a hydrophilic coating.

The length dimension of the tube body between the inner end part of the bladder and the water sac part is smaller than 1cm;

the inner bladder end is closed; at least 1 drainage hole is arranged on the side surface of the smooth arc-shaped tube body at the inner end part of the bladder; the top is closed, and the smooth arc is difficult for distortion folding and slippage, opens a plurality of drainage holes in proper order along the arc pipe, increases urine drainage effect, reduces the catheter jam probability.

A guide wire is arranged in the tube body. The guide wire is inserted into the catheter cavity, so that the catheter is easier to insert, and the catheter position can be adjusted when urine leakage is caused by various reasons, and the operation is convenient.

The further proposal has the advantages that the material adopts the trocar material, namely the polyurethane catheter is provided with the medical hydrophilic anticoagulation coating, has high biocompatibility and non-coagulation property, is soft and becomes soft along with the rising of temperature, does not hurt mucous membrane, and reduces the pain of patients; meanwhile, the operation of matching the guide wire is convenient, the ductility is high, the pipe wall is thinner, the inner diameter is thicker, the guide wire is easier to insert, meanwhile, the outer diameter of the catheter is not large, and the tolerance of a patient is improved; the hydrophilic coating becomes lubricious when wet, reduces friction, and the thin catheter not only slows down the pain to the patient, but also has lower requirements on the operation specialty, and can realize the self operation of the patient.

Drawings

FIG. 1 is a schematic view of the structure of a urinary catheter of the present utility model;

in the drawings, the list of component names indicated by the respective reference numerals is as follows:

1. an inner bladder end; 11. an inner bladder end tip; 12. drainage holes; 2. a water bag portion; 3. a tube body.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Referring to fig. 1, a schematic diagram of a catheter according to the present utility model is shown. A catheter comprises a catheter body 3, and an inner end part 1, a water sac part 2 and an outer end part of the bladder which are connected together through the catheter body 3, wherein the inner end part 1 of the bladder is in a smooth arc shape.

The inner end part 1 of the bladder is made of polyurethane, the wall thickness of the tube body is 1mm, the outer diameter of the whole tube body is 5.3mm, and the outer surface of the inner end part of the bladder is coated with a medical hydrophilic anti-coagulation coating-hydromer coating (manufactured by the American Alzheimer's company).

The length dimension of the tube body between the inner end part of the bladder and the water sac part 2 is smaller than 2cm;

the bladder inner end tip 11 is closed; two drainage holes 12 are respectively arranged on two side surfaces of the smooth arc-shaped tube at the inner end part of the bladder, and the diameter of each drainage hole 12 is about 0.4 cm; the inner end of the bladder is closed, the smooth arc-shaped inner end of the bladder is not easy to twist, fold and slip, a plurality of drainage holes 12 are sequentially formed along the arc-shaped catheter 3 at the inner end of the bladder, the urine drainage effect is improved, and the probability of blockage of the urinary canal is reduced.

A guide wire can be arranged in the tube body. The guide wire is inserted into the cavity of the catheter 3, so that the position of the catheter 3 can be adjusted when the conditions such as urine leakage and the like are caused by various reasons, and the operation is convenient.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (6)

1. The catheter comprises a catheter body and an inner end part of the bladder, a water sac part and an outer end part of the bladder which are connected together through a catheter body, and is characterized in that the inner end part of the bladder is in a smooth arc shape; the inner end part of the bladder is made of polyurethane, and the surface of the inner end part of the bladder is coated with a hydrophilic coating.

2. The urinary catheter of claim 1, wherein the tube dimension between the inner bladder end and the water bladder portion is less than 1cm.

3. The urinary catheter of claim 1 or 2, wherein the intravesical end tip is closed.

4. A catheter according to claim 3, wherein at least 1 drainage hole is provided in the side of the rounded arc-shaped tube at the inner end of the bladder.

5. The urinary catheter of claim 1, wherein a guidewire is disposed within the catheter body.

6. The urinary catheter of claim 1, wherein the tube has a diameter of less than 6mm.