Novel painless catheter

Abstract

The utility model discloses a novel painless catheter, which relates to the technical field of medical instruments and comprises an insertion section with a conical section and a catheter section with a cylindrical section, the insertion section and the catheter section are of an integral hot melting forming structure, and a catheter cavity is arranged in the insertion section and the catheter section. The end of the insertion section is provided with a liquid inlet hole which is recessed towards the inside of the catheter cavity. According to the urethral catheter, the liquid inlet hole is formed in the top end of the urethral catheter, the insertion section of the urethral catheter enters the urethra to form a triangular space, urethral mucosa is pushed aside and smoothly enters the bladder to guide urine out, the liquid inlet hole is sunken in the urethral catheter in the specific use process, the cross section of the periphery of the hole does not make contact with or rub against the mucosa, and the urethral catheter is convenient to use. The urethral catheter is reasonable in design, easy and convenient to operate and smooth in placement, can be bent along with bending of the urethra, enables a user only to have the feeling that foreign matter enters the urethra and not to have the feeling of pain, and can provide favorable help for rehabilitation of a patient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a novel painless urinary catheter. Background Art

[0002] Indwelling catheterization, as a commonly used operation technique in clinical practice, is an essential measure for observing the condition and treating diseases, and is widely used for observing urine volume in patients with dysuria, anesthesia, and after surgery. The structure of the urinary catheter in the prior art includes a catheter body, one end of the catheter body is provided with an airbag, the other end of the catheter body is a urine outlet, and a balloon inflation catheter communicated with the inflation pipeline is connected to the urine outlet end of the catheter body, and the airbag is used for internal fixation. Since most of the existing urinary catheters are made of silicone rubber, they have a certain hardness and cause relatively severe pain to patients, especially male patients, and the use effect is not good. Therefore, a novel painless urinary catheter is proposed here. Content of the Utility Model

[0003] Technical Problem to be Solved

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a novel painless urinary catheter.

[0005] Technical Solution

[0006] To achieve the above purpose, the utility model provides the following technical solution: A novel painless urinary catheter includes an insertion section with a conical cross-section and a catheter section with a cylindrical cross-section. The insertion section and the catheter section are integrally formed by hot melting. A urinary catheter lumen is provided inside the insertion section and the catheter section. An inlet hole that is recessed into the urinary catheter lumen is provided at the end of the insertion section. The inlet hole is arranged at the top of the urinary catheter. After the insertion section of the urinary catheter enters the urethra, a triangular space is formed to push aside the urethral mucosa and smoothly enter the bladder to drain urine. During specific use, the inlet hole is recessed into the lumen of the tube, so that the cross-sectional part around the hole does not come into contact with and rub against the mucosa, and thus will not cause damage to the urethra. The design of this urinary catheter is reasonable, simple to operate, smooth to insert, and it can bend along with the curvature of the urethra, making the user only feel the entry of a foreign object without pain, so it can provide beneficial help for the rehabilitation of patients.

[0007] Preferably, both the insertion section and the catheter section are made of high molecular weight PVC material.

[0008] Preferably, the diameter of the inlet hole is 2 mm.

[0009] Preferably, the diameter of the urinary catheter lumen in the catheter section is 2.8 mm, and the outer diameter of the catheter section is 4.2 mm.

[0010] Preferably, the length of the insertion section is 20 mm - 40 mm.

[0011] Preferably, the length of the catheter lumen is 70 mm-90 mm.

[0012] Beneficial effects:

[0013] Compared with the existing technology, the new painless urinary catheter has the following beneficial effects:

[0014] The utility model sets the liquid inlet hole at the top of the urinary catheter, so that the insertion section of the urinary catheter forms a triangular space after entering the urethra, pushes aside the urethral mucosa and smoothly enters the bladder to drain urine. When used, the liquid inlet hole is sunken in the catheter, so that the cross-section of the hole and the mucosa do not contact and rub, so the urethra will not be damaged. The urinary catheter is reasonably designed, simple to operate, and smoothly inserted. It can bend with the curvature of the urethra, so that the user only feels the entry of foreign matter without pain, so it can provide beneficial help for the recovery of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the utility model.

[0018] In the figure:

[0019] 1. Insertion section; 2. Catheter section; 3. Catheter lumen; 4. Liquid inlet hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 2As shown, the utility model provides a technical solution: a novel painless urinary catheter, comprising an insertion section 1 with a conical cross section and a catheter section 2 with a cylindrical cross section, wherein the insertion section 1 and the catheter section 2 are an integrated hot-melt formed structure, a urinary catheter lumen 3 is provided inside the insertion section 1 and the catheter section 2, and a liquid inlet hole 4 recessed into the urinary catheter lumen 3 is provided at the end of the insertion section 1, the diameter of the urinary catheter lumen 3 is 2.5mm-3mm, the outer diameter of the catheter section is 4.0mm-4.2mm, the length of the insertion section 1 is 20mm-40mm, and the length of the urinary catheter lumen 3 is 70mm-90mm, the liquid inlet hole 4 is arranged at the top of the urinary catheter, so that the insertion section 1 of the urinary catheter forms a triangular space after entering the urethra, and the urethral mucosa is pushed aside to smoothly enter the bladder to drain urine, and when used, the liquid inlet hole 4 is recessed in the catheter, so that the cross-sectional area around the hole does not contact and rub with the mucosa, so that the urethra will not be damaged.

[0022] The insertion section 1 and the catheter section 2 in the present application are both made of high molecular weight PVC material. The device is formed by hot melt molding and sterilized with epoxy resin after molding.

[0023] Please pay attention to Figure 1 The diameter of the liquid inlet hole 4 is between 1.5 mm and 2.3 mm.

[0024] As one of the embodiments of the present application, the diameter of the liquid inlet hole 4 is 2 mm, and the diameter of 2 mm is the most preferred embodiment of the present application.

[0025] As one of the embodiments of the present application, the diameter of the urinary catheter lumen 3 in the catheter section is 2.8 mm, and the outer diameter of the catheter section is 4.2 mm.

[0026] As one of the embodiments of the present application, the length of the insertion section 1 is 30 mm, and the length of the catheter lumen 3 is 80 mm.

[0027] Working principle: the liquid inlet hole 4 is set at the top of the catheter, so that the insertion section 1 of the catheter forms a triangular space after entering the urethra, and the urethral mucosa is pushed aside to smoothly enter the bladder to discharge urine. When used, the liquid inlet hole 4 is sunken into the catheter, so that the cross-section of the hole and the mucosa do not contact and rub, so there will be no damage to the urethra. The catheter is reasonably designed, simple to operate, and smoothly inserted. It can bend with the curvature of the urethra, so that the user only feels the entry of foreign matter without pain, so it can provide beneficial help for the recovery of patients.

[0028] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of painless urinary catheter, characterized by: The invention comprises an insertion section (1) with a conical cross section and a catheter section (2) with a cylindrical cross section, wherein the insertion section (1) and the catheter section (2) are an integral hot-melt-molded structure, a urinary catheter lumen (3) is provided inside the insertion section (1) and the catheter section (2), and a liquid inlet hole (4) recessed into the urinary catheter lumen (3) is provided at the end of the insertion section (1).

2. The novel painless urinary catheter according to claim 1 is characterized in that: The insertion section (1) and the catheter section (2) are both made of high-molecular PVC material.

3. The novel painless urinary catheter according to claim 1 is characterized in that: The diameter of the liquid inlet hole (4) is 2 mm.

4. The novel painless urinary catheter according to claim 1 is characterized in that: The diameter of the urinary catheter lumen (3) in the catheter section is 2.8 mm, and the outer diameter of the catheter section is 4.2 mm.

5. The novel painless urinary catheter according to claim 1 is characterized in that: The length of the insertion section (1) is 20 mm-40 mm.

6. The novel painless urinary catheter according to claim 1 is characterized in that: The length of the urinary catheter lumen (3) is 70 mm-90 mm.

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