Tip supporting urinary catheter
By setting a guidewire and limiting water capsule in the urethra and designing a conical fluid inlet end, the problem of urinary catheter difficulty in urinary catheter in patients with prostate hyperplasia and urethra stenosis is solved, and the smooth insertion and catheter of the urethra is achieved.
Patent Information
- Application Number
- CN202420771585.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-15
AI Technical Summary
Existing urinary catheters are difficult to insert into the bladder through the urethra in patients with prostate hyperplasia and urethra stenosis, resulting in dyscatheterization.
A pointed-supporting urethra catheter is designed, with a guide wire and a limiting water capsule inside the urethra. The guide wire penetrates the entire urine flow channel, increasing the support force of the urethra catheter and reducing resistance through the conical fluid inlet end.
Through the support force of the guide wire and the design of the conical fluid inlet end, the resistance of urethral stenosis can be effectively overcome and the urethra of patients with prostate hyperplasia and urethral stenosis can be successfully inserted, helping patients to catheterize smoothly.
Smart Images
Figure CN222585325U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of urinary catheters, in particular to a tip-supported urinary catheter. Background Art
[0002] A urinary catheter is a tube that is inserted into the bladder to drain urine. It can be inserted into the bladder through the urethra or through a cystostomy. The insertion of a urinary catheter, whether through the urethra or through a cystostomy, is performed under the principle of aseptic operation. It is an auxiliary treatment for draining urine by inserting the urinary catheter into the bladder, or it is used for those with dysuria. In current medical and health work, it is very common for patients to need to have a urinary catheter inserted.
[0003] However, in clinical practice, patients with prostatic hyperplasia and urethral stenosis often find it difficult to pass the urinary catheter during catheterization. Utility Model Content
[0004] The utility model aims to provide a tip-supported urinary catheter to solve the problem that the existing urinary catheter is difficult to insert under special circumstances.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] The basic technical solution provided by the utility model is:
[0007] A tip-supported urinary catheter comprises a urinary catheter, wherein a urine flow channel and a water injection flow channel are arranged inside the urinary catheter, a plurality of urinary catheter holes connected with the urine flow channel are opened at the liquid inlet end of the urinary catheter, and a guide wire for supporting the urinary catheter is passed through the urine flow channel; the liquid inlet end of the urinary catheter is also connected to a limiting water bag connected with the water injection flow channel, and the limiting water bag is located between the urinary catheter holes and the liquid outlet end of the urinary catheter.
[0008] The principle and beneficial effects of the basic technical solution are: the guide wire is inserted from the liquid outlet end of the catheter, passes through the entire urine flow channel and extends to the liquid inlet end of the catheter, thereby increasing the supporting force of the catheter. When the catheter is inserted into the bladder from the urethral opening of patients with prostatic hyperplasia and urethral stenosis, the catheter provided with a guide wire can counteract the resistance caused by urethral stenosis, thereby enabling the catheter to be smoothly inserted into the urethra of patients with prostatic hyperplasia and urethral stenosis, helping patients with prostatic hyperplasia and urethral stenosis to catheterize smoothly.
[0009] Preferably, the shape of the liquid inlet end of the urinary catheter is conical, and the length of the cone along the axial direction of the urinary catheter is 2 to 4 cm, and the tip of the cone is rounded.
[0010] Through the above-mentioned configuration, the head of the liquid inlet end of the catheter is configured to be tapered, which can reduce the resistance of the catheter entering a narrow urethra or the urethra of a patient with prostatic hyperplasia, allowing the catheter to be inserted smoothly; the rounded corners of the tapered tip can prevent the sharp thorns from hurting the patient; the length of the cone along the axial direction of the catheter is set to 2 to 4 cm, which can reduce the resistance of the catheter being inserted into the urethra. If the length of the cone is set too long, the length of the head of the liquid inlet end will be too long and damage the bladder. If the length of the cone is set too short, the effect of reducing resistance cannot be achieved.
[0011] Preferably, the guidewire comprises a guidewire head and a guidewire body, the guidewire head is located in the liquid inlet end of the urinary catheter, the diameter of the guidewire head is smaller than the diameter of the guidewire body, the shape of the guidewire head is conical, and the tip of the cone is rounded.
[0012] Through the above arrangement, the diameter of the guide wire head is smaller than the diameter of the guide wire body, and the closer to the catheter the tapered tip is, the thinner it is. The closer to the catheter the tapered tip is, the smaller the hardness of the guide wire is, making the liquid inlet end of the catheter softer, avoiding the liquid inlet end of the catheter being too hard to hurt the patient, reducing the resistance of the catheter being inserted into the urethra, and increasing the comfort of the patient.
[0013] Preferably, the number of the urinary catheter holes is two, and the two urinary catheter holes are arranged opposite to each other, wherein the two urinary catheter holes are not at the same height.
[0014] Through the above arrangement, setting two urinary catheter holes can speed up the drainage of urine. The two urinary catheter holes are set at different heights, which can avoid the urine from the two urinary catheter holes from colliding when entering the urinary catheter holes, thereby slowing down the drainage speed of urine.
[0015] Preferably, the guide wire is made of plastic.
[0016] Through the above settings, the plastic material has moderate hardness and softness, is tough and not easy to break, and has low procurement cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of a tip-supported urinary catheter of the utility model. Figure 1 ;
[0018] Figure 2 For the utility model Figure 1 A is an enlarged schematic diagram;
[0019] The names of the corresponding marks in the accompanying drawings are:
[0020] The urinary catheter 1, the liquid inlet end 11, the liquid outlet end 12, the urinary catheter hole 13, the guide wire 14, the guide wire head 141, the guide wire body 142, the limiting water bag 15, the urine flow channel 16, the water injection flow channel 17, and the water injection end 18. DETAILED DESCRIPTION
[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:
[0022] like Figure 1 to Figure 2 As shown, a tip-supported urinary catheter comprises a urinary catheter 1, wherein the shape of the liquid inlet end 11 of the urinary catheter 1 is conical, and the length of the cone along the axial direction of the urinary catheter 1 is 3 cm, and the tip of the cone is rounded to make the tip of the cone smooth; a urine flow channel 16 and a water injection flow channel 17 are arranged inside the urinary catheter 1, and two urinary catheter holes 13 connected to the urine flow channel 16 are opened at the liquid inlet end 11 of the urinary catheter 1, and the two urinary catheter holes 13 are arranged opposite to each other and are not at the same height; a urinary flow channel 16 is penetrated with a A guide wire 14 made of plastic supports the urinary catheter 1, and the guide wire 14 includes a guide wire head 141 and a guide wire body 142. The guide wire head 141 is located in the liquid inlet end 11 of the urinary catheter 1, and the diameter of the guide wire head 141 is smaller than the diameter of the guide wire body 142. The shape of the guide wire head 141 is conical, and the tip of the cone is chamfered. A limiting water bag 15 connected to the water injection channel 17 is also connected to the urinary catheter 1 near the liquid inlet end 11, and the limiting water bag 15 is located between the urinary catheter hole 13 and the liquid outlet end 12 of the urinary catheter 1.
[0023] The implementation process is as follows:
[0024] The guide wire 14 is coated with paraffin lubricant and inserted from the liquid outlet end 12 of the urethra 1 along the urine flow channel 16 of the urethra 1 until the head of the guide wire 14 is inserted into the liquid inlet end 11 of the urethra 1. The outer wall of the urethra 1 is also coated with paraffin lubricant, and then the liquid inlet end 11 of the urethra 1 is inserted from the urethra and placed into the bladder. Sterilized water is injected from the water injection end 18 to expand the limiting water bag 15, thereby preventing the urethra 1 from falling out of the bladder and fixing the urethra 1. The urine in the bladder enters the urine flow channel 16 of the urethra 1 from the catheter hole 13 and flows out from the liquid outlet end 12 of the urethra 1 along the urine flow channel 16.
[0025] Among them, the guide wire 14 penetrates from the liquid outlet end 12 of the ureter 1, penetrates the entire urine flow channel 16 and extends to the liquid inlet end 11 of the ureter 1, thereby increasing the supporting force of the ureter 1. When the ureter 1 is inserted into the bladder from the urethral opening of patients with prostatic hyperplasia and urethral stenosis, the ureter 1 provided with the guide wire 14 can resist the resistance caused by urethral stenosis, thereby smoothly inserting the urethra of patients with prostatic hyperplasia and urethral stenosis, and helping patients with prostatic hyperplasia and urethral stenosis to catheterize smoothly. The head of the liquid inlet end 11 of the ureter 1 is set to be conical, which can reduce the resistance of the urethra 1 entering the narrow urethra or the urethra of patients with prostatic hyperplasia, so that the urethra 1 can be smoothly inserted; the rounded corner of the tip of the cone can prevent the sharp thorn from hurting the patient; the length of the cone along the axial direction of the ureter 1 is set to 2 to 4 cm, which can reduce the resistance of the urethra when the urethra 1 is inserted. If the length of the cone is too long, the head of the liquid inlet end 11 will be too long and damage the bladder. If the length of the cone is too short, it will not have the effect of reducing resistance.
[0026] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A tip-supported urinary catheter, characterized in that: The invention comprises a urinary catheter (1), wherein a urine flow channel (16) and a water injection flow channel (17) are arranged inside the urinary catheter (1), a plurality of urine guide holes (13) in communication with the urine flow channel (16) are opened at a liquid inlet end (11) of the urinary catheter (1), and a guide wire (14) for supporting the urinary catheter (1) is passed through the urine flow channel (16); a limiting water bag (15) in communication with the water injection flow channel (17) is also connected to the urinary catheter (1) near the liquid inlet end (11), and the limiting water bag (15) is located between the urine guide hole (13) and the liquid outlet end (12) of the urinary catheter (1).
2. The tip-supported urinary catheter according to claim 1, characterized in that: The shape of the liquid inlet end (11) of the urinary catheter (1) is conical, and the length of the cone along the axial direction of the urinary catheter (1) is 2 to 4 cm, and the tip of the cone is rounded.
3. The tip-supported urinary catheter according to claim 1, characterized in that: The guidewire (14) comprises a guidewire head (141) and a guidewire body (142); the guidewire head (141) is located in the liquid inlet end (11) of the urinary catheter (1); the diameter of the guidewire head (141) is smaller than the diameter of the guidewire body (142); the shape of the guidewire head (141) is conical, and the tip of the cone is rounded.
4. The tip-supported urinary catheter according to claim 1, characterized in that: The number of the urinary catheter holes (13) is two, and the two urinary catheter holes (13) are arranged opposite to each other, wherein the two urinary catheter holes (13) are not at the same height.
5. The tip-supported urinary catheter according to claim 1, characterized in that: The material of the guide wire (14) is plastic.