Urethral catheter capable of measuring internal pressure of bladder

Abstract

The utility model relates to a urethral catheter capable of measuring bladder internal pressure. The urethral catheter comprises a urethral catheter body, a reverse folding balloon, a pressure indicating balloon and a drainage tube. One end of the catheter is communicated with a liquid outlet connector, and scale marks are arranged on the outer side wall of the catheter. The reversely-folded balloon is coaxially arranged at the end, away from the liquid outlet connector, of the catheter body, the top of the reversely-folded balloon is folded towards the inner circumferential direction of the catheter body and adheres to the outer circumferential wall of the catheter body in a sealed mode, the bottom of the reversely-folded balloon is folded towards the inner circumferential direction of the catheter body and adheres to the outer circumferential wall of the catheter body in a sealed mode, and a catheterization hole is formed in the outer side wall of the catheter body. The urethral catheterization hole is formed in one side of the bottom of the reversely-folded balloon; the pressure indicating balloon is communicated with the liquid outlet connector and is provided with a plurality of film structures with different pressure values; and the drainage tube is communicated with the pressure indicating balloon. The urinary catheter can drain urine in the bladder as much as possible, the bladder cannot be greatly stimulated, and the comfort level and the convenience are higher when the urinary catheter is used.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a urinary catheter capable of measuring bladder internal pressure. Background Art

[0002] Catheterization is one of the common medical operations in clinical practice, and is often used in the treatment of critically ill patients, preoperative preparation, bladder irrigation, etc. At present, there are two main types of catheters: ordinary catheters and catheters with balloon fixing devices. When ordinary catheters are used, they need to be fixed by sticking to the patient's vulva and external genitalia, which is inconvenient and not firmly fixed, and easy to slip off. In addition, after fixation, the drainage of secretions from the urethra is not smooth, which increases the chance of urinary tract infection in patients. The catheter with balloon fixing device is provided with balloon fixation on the catheter body, which avoids the problem of sticking fixation, but the current balloon catheter has the following shortcomings:

[0003] The catheter hole on the urinary catheter is generally located above the balloon. There is a distance of 3-5 cm between the existing catheter hole and the bottom of the bladder, and there is a balloon in between. Some urine always remains at the bottom of the bladder and cannot be completely emptied. In addition, components with higher density will also be deposited in this area to form larger crystals, which may block the catheter and cause adverse consequences. Moreover, because the balloon requires a longer bonding length, there is a longer urinary catheter above the balloon. After the urine is drained, the bladder volume decreases, and the longer tube above the balloon will contact the top of the bladder, irritating the bladder and causing discomfort to the patient. If the catheter hole is too far below the balloon, the catheter hole will enter the urethra and lose the function of draining urine.

[0004] In order to avoid the above problems, the catheter hole can be made as close to the lower edge of the balloon as possible. However, if the catheter hole is too close to the balloon, the adhesive part of the balloon will be damaged, which may cause the balloon to leak. For example, the Chinese patent with patent number CN102908715A proposes an "eight"-shaped balloon with the catheter hole opened in the middle of the "eight"-shaped balloon. However, the processing method of the balloon is relatively complicated, and the bonding difficulty between the balloon and the catheter is too great, which is not conducive to production. In addition, the current catheter body has no obvious marking scale, making it difficult to determine the insertion depth and whether the catheter has slipped out. Utility Model Content

[0005] Based on this, the purpose of the utility model is to overcome the deficiencies of the prior art and provide a catheter capable of measuring intravesical pressure, which can drain as much urine in the bladder as possible without causing significant stimulation to the bladder and is more comfortable and convenient to use.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A urinary catheter capable of measuring bladder internal pressure, comprising a urinary catheter, an inverted balloon, a pressure indicating balloon, and a drainage tube;

[0008] One end of the urinary catheter is connected to a liquid outlet joint, and the outer wall of the urinary catheter is provided with scale lines along its length direction;

[0009] The inverted balloon is coaxially arranged at one end of the catheter away from the liquid outlet joint, and the top of the inverted balloon is folded toward the inner circumference of the catheter and sealed and bonded to the outer circumferential wall of the catheter, the bottom of the inverted balloon is folded toward the inner circumference of the catheter and sealed and bonded to the outer circumferential wall of the catheter, and a urinary catheter hole is opened on the outer side wall of the catheter, and the urinary catheter hole is located on one side of the bottom of the inverted balloon;

[0010] The pressure indicating balloon is connected to the liquid outlet joint, and a plurality of thin film structures with different pressure values ​​are arranged on the pressure indicating balloon;

[0011] The drainage tube is communicated with the pressure indicating balloon.

[0012] As an embodiment, a catheter head for pressing the inverted balloon is provided at one end of the catheter away from the liquid outlet joint, and a through hole connected to the catheter is opened through the center of the catheter head.

[0013] As an implementation manner, six thin film structures with different pressure values ​​are arranged at intervals on the side of the pressure indicating balloon, and the film thicknesses of the six thin film structures are all different.

[0014] As an implementation mode, the urinary catheter is connected to a water injection pipe on the tube wall of one end thereof close to the liquid outlet joint, and the water injection pipe is connected to a water injection hard valve.

[0015] As an embodiment, the urinary catheter is connected to a flushing tube on the tube wall of one end thereof close to the liquid outlet joint, and the flushing tube is provided with a flushing and injection port.

[0016] As an implementation mode, the water injection pipe and the flushing pipe are both branch pipes of the urinary catheter, and the urinary catheter, the water injection pipe and the flushing pipe form a three-way integrated structure.

[0017] As an embodiment, one end of the drainage tube away from the pressure indicating balloon is connected to a drainage bag.

[0018] As an implementation mode, a clamp-type drain valve is movably provided on the drainage tube.

[0019] Compared with the traditional technology, the beneficial effects of the urinary catheter capable of measuring bladder pressure described in the utility model are:

[0020] The utility model provides a urinary catheter and an inverted balloon, and extends the upper and lower ends of the inverted balloon inwardly and connects them to the outer peripheral wall of the urinary catheter, so as to ensure that the bonding part of the inverted balloon will not occupy a long position on the urinary catheter, and the urinary catheter hole can be as close to the lower edge of the inverted balloon as possible. At the same time, because the upper and lower ends of the inverted balloon are inverted and bonded to the urinary catheter, the urinary catheter hole that is closer will not cause damage to the inverted balloon. The urinary catheter hole is located at the space between the lower edge of the inverted balloon and the bladder triangle, so that the urine in the bladder can be completely drained, and the effect of urine drainage is better. At the same time, with the new urinary catheter head, The length of the catheter above the inverted balloon can be shortened, which can avoid irritation to the bladder and improve the comfort and safety of the patient when using the catheter. Moreover, the inverted balloon has a regular shape, and the bonding method with the catheter is relatively convenient and easy to produce and process. When using the catheter, the insertion depth of the catheter can be accurately grasped through the scale lines on the catheter, and the pressure value in the pressure indicating balloon can be estimated by observing the number of bulges of the film structure of the pressure indicating balloon. The more the number of bulged film structures is, the smaller the difference in thickness of the film structure is, and the more accurate the pressure value is.

[0021] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the urinary catheter capable of measuring bladder pressure of the utility model;

[0023] Figure 2 for Figure 1 An enlarged schematic diagram of section A is shown;

[0024] Figure 3 It is a structural schematic diagram of the urinary catheter of the utility model;

[0025] Figure 4 for Figure 3 An enlarged schematic diagram of portion B is shown;

[0026] Figure 5 It is a schematic structural diagram of the pressure indicating balloon of the utility model.

[0027] Description of reference numerals:

[0028] 10. Catheter; 11. Liquid outlet connector; 12. Catheter hole; 13. Catheter head; 14. Through hole; 15. Water injection pipe; 16. Water injection hard valve; 17. Flushing pipe; 18. Flushing injection port; 20. Inverted stacking balloon; 30. Pressure indicating balloon; 31. Thin film structure; 40. Drainage tube; 41. Clip-on drain valve; 50. Drainage bag. DETAILED DESCRIPTION

[0029] To further illustrate each embodiment, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention.

[0030] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In traditional technology, urinary catheterization is one of the common medical operations in clinical practice, and is often used in treatment processes such as rescuing critically ill patients, preoperative preparation, and bladder irrigation. There are two main types of urinary catheters at present: one is an ordinary urinary catheter, and the other is a urinary catheter with an airbag fixing device. When using an ordinary urinary catheter, it needs to be fixed by sticking it to the patient's vulva and external genitalia, which is inconvenient and not firmly fixed, and is easy to slip off. In addition, after fixation, the drainage of secretions from the urethra is not smooth, which increases the chance of urinary tract infection in patients; the urinary catheter with an airbag fixing device is provided with an airbag fixation on the catheter body, which avoids the problem of sticking fixation, but the current balloon urinary catheter has the following shortcomings:

[0032] In addition, the catheter hole on the urinary catheter is generally located above the balloon. There is a distance of 3-5 cm between the existing catheter hole and the bottom of the bladder, and there is a balloon in between. Some urine always remains at the bottom of the bladder and cannot be completely emptied, and components with higher density will also be deposited in this area to form larger crystals, which may block the catheter and cause adverse consequences. Moreover, because the balloon requires a longer bonding length, there is a longer urinary catheter above the balloon. After the urine is drained, the bladder volume decreases, and the longer tube above the balloon will contact the top of the bladder, irritating the bladder and causing discomfort to the patient. If the catheter hole is too far below the balloon, the catheter hole will enter the urethra and lose the function of draining urine.

[0033] In view of this, the present embodiment provides a urinary catheter capable of measuring the intravesical pressure, which enables the urinary catheter 10 to drain as much urine in the bladder as possible without causing significant stimulation to the bladder, and is more comfortable and convenient to use.

[0034] See also Figures 1 to 5The present embodiment provides a urinary catheter capable of measuring bladder pressure, comprising a urinary catheter 10, an inverted balloon 20, a pressure indicating balloon 30, and a drainage tube 40; one end of the urinary catheter 10 is connected to a liquid outlet joint 11, and a scale is provided on the outer wall of the urinary catheter 10 along its length direction; the inverted balloon 20 is coaxially arranged at one end of the urinary catheter 10 away from the liquid outlet joint 11, and the top of the inverted balloon 20 is folded toward the inner circumference of the urinary catheter 10 and sealed and bonded to the urinary catheter 10 The bottom of the inverted balloon 20 is folded toward the inner circumference of the catheter 10 and sealed and bonded to the outer circumferential wall of the catheter 10. A urinary catheter hole 12 is provided on the outer side wall of the catheter 10. The urinary catheter hole 12 is located on one side of the bottom of the inverted balloon 20. The pressure indicating balloon 30 is connected to the liquid outlet joint 11. The pressure indicating balloon 30 is provided with a plurality of film structures 31 with different pressure values. The drainage tube 40 is connected to the pressure indicating balloon 30.

[0035] The end of the catheter 10 of this embodiment away from the liquid outlet joint 11 is provided with a catheter head 13 for pressing the inverted balloon 20 , and a through hole 14 communicating with the catheter 10 is opened through the center of the catheter head 13 .

[0036] Optionally, six thin film structures 31 with different pressure values ​​are arranged at intervals on the side of the pressure indicating balloon 30 of this embodiment, and the film thicknesses of the six thin film structures 31 are all different. For example, the six thin film structures 31 can be arranged in two rows with equal intervals, and the color of each thin film structure 31 can be set to be different from each other, which makes it more convenient for users to observe the changes in pressure values.

[0037] Optionally, the catheter 10 is connected to a water injection pipe 15 on the tube wall at one end close to the liquid outlet joint 11, and the water injection pipe 15 is connected to a water injection hard valve 16. In addition, the catheter 10 is connected to a flushing pipe 17 on the tube wall at one end close to the liquid outlet joint 11, and the flushing pipe 17 is provided with a flushing injection port 18.

[0038] Furthermore, the water injection pipe 15 and the flushing pipe 17 are both branch pipes of the urinary catheter 10, and the urinary catheter 10, the water injection pipe 15 and the flushing pipe 17 form a three-way integrated structure. Therefore, when flushing, the user can put medicine or powder through the flushing injection port 18, and inject clean water through the water injection pipe 15 to flush the inside of the urinary catheter 10.

[0039] Optionally, one end of the drainage tube 40 away from the pressure indicating balloon 30 is connected to a drainage bag 50. In addition, a clamp-type drain valve 41 is movably provided on the drainage tube 40.

[0040] Compared with the conventional technology, the utility model provides a urinary catheter 10 and an inverted balloon 20, and extends the upper and lower ends of the inverted balloon 20 inwardly and connects with the outer peripheral wall of the urinary catheter 10, so as to ensure that the bonding part of the inverted balloon 20 does not occupy a long position on the urinary catheter 10, and can make the urinary catheter hole 12 as close to the lower edge of the inverted balloon 20 as possible. At the same time, since the upper and lower ends of the inverted balloon 20 are inverted and bonded to the urinary catheter 10, the urinary catheter hole 12 that is closer will not damage the inverted balloon 20. The urinary catheter hole 12 is located in the space between the lower edge of the inverted balloon 20 and the bladder triangle, and can completely drain the urine in the bladder, which has a better effect on urine drainage. At the same time, with the new The catheter head 13 can shorten the length of the catheter 10 above the inverted balloon 20, avoid irritation to the bladder, and improve the comfort and safety of the patient when using the catheter 10. In addition, the inverted balloon 20 has a regular shape, and the bonding method with the catheter is relatively convenient, and easy to produce and process. When using the catheter 10, the insertion depth of the catheter 10 can be accurately grasped through the scale lines on the catheter 10, and the pressure value in the pressure indicating balloon 30 can be estimated by observing the number of bulges of the film structure 31 of the pressure indicating balloon 30. The more the number of bulged film structures 31 is, the smaller the difference in thickness of the film structure 31 is, and the more accurate the pressure value is.

[0041] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model's bladder pressure measuring catheter. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A urinary catheter capable of measuring bladder pressure, characterized in that: Including urinary catheter, reverse fold balloon, pressure indicating balloon, drainage tube; One end of the urinary catheter is connected to a liquid outlet joint, and the outer wall of the urinary catheter is provided with scale lines along its length direction; The inverted balloon is coaxially arranged at one end of the catheter away from the liquid outlet joint, and the top of the inverted balloon is folded toward the inner circumference of the catheter and sealed and bonded to the outer circumferential wall of the catheter, the bottom of the inverted balloon is folded toward the inner circumference of the catheter and sealed and bonded to the outer circumferential wall of the catheter, and a urinary catheter hole is opened on the outer side wall of the catheter, and the urinary catheter hole is located on one side of the bottom of the inverted balloon; The pressure indicating balloon is connected to the liquid outlet joint, and a plurality of thin film structures with different pressure values ​​are arranged on the pressure indicating balloon; The drainage tube is communicated with the pressure indicating balloon.

2. The urinary catheter capable of measuring bladder pressure according to claim 1, characterized in that: A catheter head for pressing and fixing the inverted balloon is arranged at one end of the catheter away from the liquid outlet joint, and a through hole communicating with the catheter is opened through the center of the catheter head.

3. The catheter capable of measuring bladder pressure according to claim 1, characterized in that: Six thin film structures with different pressure values ​​are arranged at intervals on the side of the pressure indicating balloon, and the film thicknesses of the six thin film structures are all different.

4. The catheter capable of measuring bladder pressure according to claim 1, characterized in that: The urinary catheter is connected with a water injection pipe on the tube wall of one end close to the liquid outlet joint, and the water injection pipe is connected with a water injection hard valve.

5. The catheter capable of measuring bladder pressure according to claim 4, characterized in that: The urinary catheter is connected with a flushing pipe on the tube wall of one end close to the liquid outlet joint, and the flushing pipe is provided with a flushing and injection port.

6. The catheter capable of measuring bladder pressure according to claim 5, characterized in that: The water injection pipe and the flushing pipe are both branch pipes of the urinary catheter, and the urinary catheter, the water injection pipe and the flushing pipe form a three-way integrated structure.

7. The catheter capable of measuring bladder pressure according to claim 1, characterized in that: One end of the drainage tube away from the pressure indicating balloon is connected with a drainage bag.

8. The urinary catheter capable of measuring bladder pressure according to claim 1, characterized in that: A clamp-type drain valve is movably arranged on the drainage tube.

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