CN112451839A

CN112451839A - Novel urinary catheter capable of sensing and positioning tension of inner wall of urethra

Info

Publication number: CN112451839A
Application number: CN202011291888.0A
Authority: CN
Inventors: 唐勇泉
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-03-09

Abstract

The invention discloses a novel ureter capable of sensing and positioning the tension of the inner wall of a urethra, which comprises a ureter, wherein one end of the ureter is provided with a urine inlet, one side of the urine inlet is provided with a water bag, the outer wall of the ureter at one side of the water bag is provided with a pressure sensor, the pressure sensor is connected with a conduction cluster, the conduction cluster is connected with a power supply and a signal output port, one end of the ureter, far away from the urine inlet, is provided with a urine outlet, and one side of the urine outlet is provided with a water injection valve. Compared with the prior art, the invention has the advantages that: can real-time reaction patient urethra in each stage tension, know the adjustment that surgeon sews up the bankruptcy to the urethra in the art, instruct the reality of pulling out the ureter at the postoperative, can effectually avoid because the produced sequela of urethra reconstruction operation, it is very convenient, reduced patient's misery, avoid the secondary operation, market prospect is good.

Description

Novel urinary catheter capable of sensing and positioning tension of inner wall of urethra

Technical Field

The invention relates to the field of medical consumables, in particular to a novel urinary catheter capable of sensing and positioning the tension of the inner wall of a urethra.

Background

Urethral reconstruction is widely used for urethral repair after a urethral fissure and a urethral trauma. In the process of urethra reconstruction surgery, it is often necessary to place a urinary catheter as a support along the original direction of urethra, and to suture the surrounding tissues around the urinary catheter to reconstruct urethra. However, the tissue that reconstructs the urethra, if too high in tension, may cause the suture to not heal and urethral leakage occurs, or urethral stricture occurs after the removal of the ureter. At present, a quantitative measurement method for reconstructing the tension of the inner wall of the urethra is not available, only can be evaluated by the subjective evaluation of a surgeon, the accuracy is unstable, and the method is inconvenient to popularize, so that urethral leakage and urethral stricture are still common sequelae after urethral double eyelid surgery.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a urinary catheter which can sense and position the tension of the inner wall of the urethra when the urethra is reconstructed so as to reduce urine leakage and/or urethral stricture caused by overlarge tension.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a can respond to and fix a position tensile novel ureter of urethra inner wall, includes the ureter, the one end of ureter is equipped with into urine mouth, one side of entering urine mouth is equipped with the water pocket, the ureter outer wall of one side of water pocket is equipped with pressure sensor, pressure sensor connects the conduction and gathers a bundle, connect power and signal output port on the conduction is gathered a bundle, the one end that the urine mouth was kept away from to the ureter is equipped with out the urine mouth, one side of going out the urine mouth is equipped with the water injection valve.

Compared with the prior art, the invention has the advantages that: can real-time reaction patient urethra in each stage tension, instruct the adjustment that the surgeon sewed up the lining to the urethra in the art, instruct the opportunity of pulling out the ureter in the postoperative, can effectually avoid because the produced sequela of urethra reconstruction operation, it is very convenient, reduced patient's misery, avoid the secondary operation, market prospect is good.

As an improvement, the pressure sensor and the power signal output of the ureter are embedded in the wall of the ureter in a bundling manner, and the flatness of the outer wall of the ureter is not affected.

As an improvement, the pressure sensor is a flexible sensor, an ion capacitive pressure sensor is adopted, ion gel is used as an intermediate material, an electric double layer with the thickness of nanometer level can be formed at the interface of the ion capacitive pressure sensor and an electrode, and the pressure sensor has higher sensitivity to pressure change.

As an improvement, the material of ureter is silicon rubber, insulating while can also bear tension.

Drawings

Fig. 1 is a schematic diagram of a novel urinary catheter for sensing and locating the tension of the inner wall of the urethra.

As shown in the figure: 1. the urine tube 2, the urine inlet 3, the water bag 4, the pressure sensor 5, the conduction cluster 6, the power supply and signal output port 7, the urine outlet 8 and the water injection valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The invention relates to a novel ureter capable of sensing and positioning the tension of the inner wall of a urethra, which comprises a ureter 1, wherein one end of the ureter 1 is provided with a urine inlet 2, one side of the urine inlet 2 is provided with a water bag 3, the outer wall of the ureter 1 at one side of the water bag 3 is provided with a pressure sensor 4, the pressure sensor 4 is connected with a conduction cluster 5, the conduction cluster 5 is connected with a power supply and a signal output port 6, one end of the ureter 1, far away from the urine inlet 2, is provided with a urine outlet 7, and one side of the urine outlet 7 is provided with a water injection valve 8.

As an improvement, the pressure sensor and the power signal output of the ureter 1 are embedded in the wall of the ureter 1 in a bundling manner, and the flatness of the outer wall of the ureter 1 is not affected.

As an improvement, the pressure sensor 4 is a flexible sensor, an ion capacitive pressure sensor is adopted, ion gel is used as an intermediate material, an electric double layer with the thickness of nanometer level can be formed at the interface of the ion capacitive pressure sensor and an electrode, and the pressure sensor has higher sensitivity to pressure change.

As an improvement, the material of the ureter 1 is silicon rubber, so that the ureter can bear tension while being insulated.

The working principle of the invention is as follows: a urinary catheter capable of sensing and positioning the tension of the inner wall of a reconstructed urethra so as to reflect the tension of each section of the reconstructed urethra in real time, guide a surgeon to adjust the tension of suture of the urethra in an operation and guide the time for removing the urinary catheter after the operation. The main body of the novel ureter adopts the form of a common double-cavity ureter, the head end is a urine inlet and a water bag, the tail end is a urine outlet and a water injection valve which are arranged side by side, and the material adopts silicon rubber with medium texture. Because the tension of the inner wall of the urethra is reconstructed and can be reflected on the pressure of the inner wall to the supporting ureter, a row of flexible pressure sensors are longitudinally distributed on the ureter behind the water sac, insulation and fixation are well performed, the circuit cluster is also attached to the ureter wall, and signals are transmitted to a computer along the ureter for processing, analyzing and displaying. The sensing element and the circuit do not protrude out of the surface of the urinary catheter, so that a smooth outer wall of the urinary catheter is formed.

The flexible sensor adopts an ionic capacitance type pressure sensor, ionic gel is used as an intermediate material, an electric double layer with the thickness of nanometer level can be formed on the interface of the ionic gel and an electrode, and the flexible sensor has higher sensitivity to pressure change.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly specifically defined otherwise.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, reference to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims

1. A novel ureter capable of sensing and positioning the tension of the inner wall of the urethra, which comprises a ureter (1) and is characterized in that: the one end of ureter (1) is equipped with into urine mouth (2), one side of entering urine mouth (2) is equipped with water pocket (3), ureter (1) outer wall of one side of water pocket (3) is equipped with pressure sensor (4), pressure sensor (4) connect conduction (5) tied in a bundle, connect power and signal output port (6) on conduction (5) tied in a bundle, the one end that advances urine mouth (2) is kept away from in ureter (1) is equipped with out urine mouth (7), one side of going out urine mouth (7) is equipped with water injection valve (8).

2. The novel urinary catheter capable of sensing and locating the tension of the inner wall of the urethra according to claim 1, wherein: the pressure sensor and the power signal output of the ureter (1) are embedded in the wall of the ureter (1) in a cluster mode, and the flatness of the outer wall of the ureter (1) is not affected.

3. The novel urinary catheter capable of sensing and locating the tension of the inner wall of the urethra according to claim 1, wherein: the pressure sensor (4) is a flexible sensor, adopts an ion capacitive pressure sensor, takes ion gel as an intermediate material, can form an electric double layer with the thickness of nanometer level with an electrode interface, and has higher sensitivity to pressure change.

4. The novel urinary catheter capable of sensing and locating the tension of the inner wall of the urethra according to claim 1, wherein: the ureter (1) is made of silicon rubber, and is insulated and can bear tension.