Urethral catheter for urinary surgery

Abstract

The invention discloses a urinary catheter for urinary surgery, and relates to the technical field of medical instruments. Comprising a catheter body, and a catheter cavity, a medicine dripping cavity and a flushing cavity are formed in the catheter body; the urethral catheterization cavity is used for draining urine in the bladder, the medicine dripping cavity is used for dripping liquid medicine, and the flushing cavity is used for flushing the bladder; the first end of the connecting pipeline is connected with the catheter main body, the second end of the connecting pipeline is provided with a catheterization head, a medicine dripping head and a flushing head which are mutually independent, the catheterization head is communicated with the catheterization cavity, the medicine dripping head is communicated with the medicine dripping cavity, and the flushing head is communicated with the flushing cavity. When urine is drained or bladder perfusion treatment is carried out, liquid medicine can be added into the body of a patient, the treatment effect is improved, and the risk of complications such as urinary tract infection is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a urinary catheter for urology. Background Art

[0002] A urinary catheter is a medical catheter inserted into the urethra and retained in the bladder, and is one of the most commonly used instruments in urology.

[0003] Existing urinary catheters are mainly used for draining urine or performing bladder perfusion therapy. However, in clinical use, it is often necessary to add medicaments into the patient's bladder or urethra, and existing urinary catheters cannot well complete the work of adding medicaments. Summary of the Invention

[0004] The main object of the present invention is to provide a urinary catheter for urology to solve the above problems.

[0005] To achieve the above object, the present invention provides a urinary catheter for urology, including:

[0006] A catheter body, in which a urine drainage cavity, a medicament dripping cavity and a flushing cavity are arranged;

[0007] The urine drainage cavity is used for draining urine inside the bladder, the medicament dripping cavity is used for dripping medicaments, and the flushing cavity is used for flushing the bladder;

[0008] A connecting pipeline, the first end of which is connected to the catheter body, and the second end of which is provided with an independent urine drainage head, a medicament dripping head and a flushing head respectively. The urine drainage head is communicated with the urine drainage cavity, the medicament dripping head is communicated with the medicament dripping cavity, and the flushing head is communicated with the flushing cavity.

[0009] Further, a plurality of medicament dripping ports communicated with the medicament dripping cavity are arranged on the side wall of the catheter body, and the plurality of medicament dripping ports are arranged along the axial direction of the catheter body.

[0010] Further, a plurality of medicament dripping cavities are provided, and the plurality of medicament dripping cavities are in one-to-one correspondence and are independently communicated with the plurality of medicament dripping ports; a plurality of medicament dripping heads are provided and are respectively communicated with the plurality of medicament dripping cavities.

[0011] Further, an air duct is further included in the catheter body. The first end of the air duct is communicated with the end of the medicament dripping cavity far away from the connecting pipeline, and the second end of the air duct is connected with a first air source; a medicament adding port is arranged on the side wall of the catheter body and is communicated with the medicament dripping cavity, and the medicament dripping head is connected with a second air source;

[0012] A first stop block and a second stop block are arranged in the medicament dripping cavity, and the first stop block and the second stop block are slidably and sealingly connected with the medicament dripping cavity;

[0013] The medicine dropping port is a pressure - type opening, which opens outwards under a certain pressure.

[0014] Furthermore, one end of the first stop block close to the second stop block is provided with a first inclined surface, the second stop block is provided with a second inclined surface, the first inclined surface and the second inclined surface form a V - shaped opening, and the opening end of the V - shaped opening is close to the medicine adding port.

[0015] Furthermore, a traction wire is arranged in the flushing cavity.

[0016] Furthermore, a plurality of annular skeletons are arranged axially on the inner wall of the end of the flushing cavity far from the connecting pipeline.

[0017] Furthermore, a plurality of traction wires are arranged circumferentially, and the plurality of traction wires are connected to the annular skeletons.

[0018] Furthermore, a pressure sensor, a pH sensor and a temperature sensor are arranged on the catheter main body.

[0019] While the present invention can drain urine or perform bladder perfusion treatment, it can add medicine solution to the patient's body, improve the treatment effect, and reduce the risk of complications such as urinary tract infection. Brief Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the whole urological catheter of the present invention.

[0021] Figure 2 It is a cross - sectional view of the catheter main body of the urological catheter of the present invention.

[0022] Figure 3 It is a schematic diagram of the first stop block of the urological catheter of the present invention.

[0023] Among them, 1 - catheter main body; 2 - urine drainage cavity; 3 - medicine dropping cavity; 4 - flushing cavity; 5 - connecting pipeline; 6 - urine drainage head; 7 - medicine dropping head; 8 - flushing head; 9 - medicine dropping port; 10 - first stop block; 11 - second stop block; 12 - traction wire; 13 - annular skeleton; 14 - medicine adding port; 15 - air duct. Detailed Embodiments

[0024] To achieve the above - mentioned purpose and effect, the technical means and structure adopted by the present invention will be described in detail in terms of its features and functions with reference to the preferred embodiments of the present invention in conjunction with the drawings.

[0025] As Figures 1-3 shown, the present invention provides a urological catheter, including:

[0026] The catheter main body 1 is provided with a urine drainage cavity 2, a medicine dripping cavity 3 and a flushing cavity 4 inside;

[0027] The urine drainage cavity 2 is used to drain the urine inside the bladder, the medicine dripping cavity 3 is used to drip medicine into the bladder or urethra, and the flushing cavity 4 is used to flush the bladder;

[0028] The end of the catheter main body 1 is provided with a urine drainage hole communicating with the urine drainage cavity 2 and a flushing hole communicating with the flushing cavity 4;

[0029] A connecting pipeline 5, the first end of the connecting pipeline 5 is connected to the catheter main body 1, and the second end of the connecting pipeline 5 is provided with independent urine drainage heads 6, medicine dripping heads 7 and flushing heads 8. The urine drainage head 6 communicates with the urine drainage cavity 2, the medicine dripping head 7 communicates with the medicine dripping cavity 3, and the flushing head 8 communicates with the flushing cavity 4.

[0030] In this embodiment, a plurality of medicine dripping ports 9 communicating with the medicine dripping cavity 3 are arranged on the side wall of the catheter main body 1, and the plurality of medicine dripping ports 9 are arranged along the axial direction of the catheter main body 1.

[0031] In another embodiment, there are a plurality of medicine dripping cavities 3, and the plurality of medicine dripping cavities 3 are in one-to-one correspondence and independently communicate with the plurality of medicine dripping ports 9; there are a plurality of medicine dripping heads 7, which respectively communicate with the plurality of medicine dripping cavities 3. Thus, by injecting medicine into different medicine dripping heads 7, the medicine can leave the medicine dripping cavity 3 from the medicine dripping ports 9 at different positions of the catheter main body 1, realizing precise control of the medicine infiltration site.

[0032] Specifically, the plurality of medicine dripping cavities 3 are arranged circumferentially along the catheter main body 1, and the flushing cavity 4 and the urine drainage cavity 2 are located between the plurality of medicine dripping cavities 3.

[0033] Preferably, the colors of different medicine dripping heads 7 are different for easy distinction.

[0034] In another embodiment, the catheter main body 1 further includes an air passage 15. The first end of the air passage 15 communicates with the end of the medicine dripping cavity 3 far from the connecting pipeline 5, and the second end of the air passage 15 is connected with a first air source; a medicine adding port 14 is arranged on the side wall of the catheter main body 1, the medicine adding port 14 communicates with the medicine dripping cavity 3, the medicine adding port 14 is close to the medicine dripping head 7, and the medicine dripping head 7 is connected with a second air source;

[0035] A first stop block 10 and a second stop block 11 are arranged in the medicine dripping cavity 3, and the first stop block 10 and the second stop block 11 are slidably and hermetically connected with the medicine dripping cavity 3;

[0036] The medicine dripping port 9 is a pressure-type opening and opens outward under a certain pressure.

[0037] In use, medical staff can draw air or blow air into the medicine dropping cavity 3 through the first air source and the second air source, and adjust the positions of the first stopper 10 and the second stopper 11 through air pressure, so that they are respectively located on both sides of the medicine adding port 14. Then, medicine liquid is added into the medicine dropping cavity 3 through the medicine adding port 14. At this time, the first air source and the second air source slowly inhale air to reduce the air pressure outside the first stopper 10 and the second stopper 11, so that the first stopper 10 and the second stopper 11 can easily move outward. At this time, as the medicine liquid is added, the first stopper 10 and the second stopper 11 move away from each other under the action of the medicine liquid, and the medicine liquid enters the area between the first stopper 10 and the second stopper 11. Then the first air source sucks air outward and the second air source blows air, so that the first stopper 10, the medicine liquid and the second stopper 11 move towards the medicine dropping port 9. When they move to the corresponding medicine dropping port 9 where the medicine liquid needs to exude, after the first stopper 10 and the second stopper 11 are located on both sides of the target medicine dropping port 9, the first air source and the second air source blow air simultaneously, and the first stopper 10 and the second stopper 11 start to move relatively, so that the medicine liquid gives a pressure to the medicine dropping port 9. When the pressure reaches a certain magnitude, the target medicine dropping port 9 opens outward under the action of the pressure, and the medicine liquid gradually leaves from the target medicine dropping port 9, realizing precise control of the medicine exuding part. After the medicine liquid is added, the medicine dropping port 9 is no longer under pressure, and the medicine dropping port 9 automatically closes.

[0038] Specifically, position sensors are arranged on the first stopper 10 and the second stopper 11 to accurately control their positions and confirm their moving states.

[0039] Specifically, when the medicine liquid moves towards the target medicine dropping port 9, since the first stopper 10 and the second stopper 11 do not apply a large pressure, the medicine dropping ports passed by the moving medicine liquid will not open, preventing the medicine liquid from leaving the medicine dropping cavity 3 in advance.

[0040] In this embodiment, a first inclined surface is arranged at one end of the first stopper 10 close to the second stopper 11, and a second inclined surface is arranged on the second stopper 11. The first inclined surface and the second inclined surface form a V-shaped opening, and the opening end of the V-shaped opening is close to the medicine adding port 14. This V-shaped opening can facilitate the addition of the medicine liquid from the medicine adding port 14, and make the first stopper 10 and the second stopper 11 move away from each other under the pressure when adding the medicine liquid, reducing the operation requirements for the first air source and the second air source.

[0041] In another embodiment, a traction wire 12 is arranged in the flushing cavity 4. The traction wire can provide a certain stiffness for the catheter main body 1, facilitating the insertion of the catheter main body.

[0042] In another embodiment, a plurality of annular skeletons 13 are arranged axially on the inner wall at one end of the flushing cavity 4 far from the connecting pipeline 5. A plurality of traction wires 12 are arranged circumferentially, and the plurality of traction wires 12 are connected to the annular skeletons 13. Thus, the circumferential skeleton 13 can be bent by operating different traction wires 12, facilitating the operation.

[0043] In another embodiment, a pressure sensor, a pH sensor and a temperature sensor are provided on the catheter body 1.

[0044] The pressure changes of the urethral sphincter and the bladder neck are monitored by the pressure sensor, and the position of the catheter body 1 is determined according to the pressure changes.

[0045] Specifically, when the pressure value is in the range of 800 - 1500 Pa and shows a steep rise - plateau - slow decline waveform, the end of the catheter body 1 crosses the bladder neck, and when rhythmic pressure fluctuations of 5 - 8 Hz are detected, it is in the area of the external urethral sphincter.

[0046] Specifically, a balloon is provided on the outer wall of the catheter body 1, and the balloon is used to fix the catheter body 1, and the pressure sensor can be arranged on the inner wall of the balloon.

[0047] The pH sensor can continuously monitor the change of urine pH value, and medical staff can add different medicaments according to the change of urine pH value.

[0048] Specifically, the pH sensor can be arranged at the medicine dropping port.

[0049] The temperature sensor can continuously monitor the temperature changes of the bladder and the urethra, so as to determine whether inflammation occurs. When inflammation occurs, medical staff can choose to perform saline irrigation or add anti - inflammatory drugs according to the temperature.

[0050] The above - mentioned are only the preferred embodiments of the present invention, not all embodiments. Anyone should know that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, all belong to the protection scope of the present invention.

Claims

1. A urinary catheter for urology, characterized in that: include: A urinary catheter body (1), wherein the urinary catheter body (1) is provided with a urinary catheter cavity (2), a medicine drip cavity (3) and a flushing cavity (4); The urinary catheter cavity (2) is used to drain urine from the bladder, the medicine dripping cavity (3) is used to drip medicine, and the flushing cavity (4) is used to flush the bladder; A connecting pipeline (5), wherein a first end of the connecting pipeline (5) is connected to the catheter body (1), and a second end of the connecting pipeline (5) is provided with a mutually independent catheter head (6), a medicine dropping head (7) and a flushing head (8), wherein the catheter head (6) is connected to the catheter cavity (2), the medicine dropping head (7) is connected to the medicine dropping cavity (3), and the flushing head (8) is connected to the flushing cavity (4).

2. A urological catheter as claimed in claim 1, characterized in that: A plurality of medicine dropping openings (9) communicating with the medicine dropping cavity (3) are arranged on the side wall of the catheter body (1), and the plurality of medicine dropping openings (9) are arranged along the axial direction of the catheter body (1).

3. A urological catheter as claimed in claim 2, characterized in that: A plurality of medicine dripping cavities (3) are provided, and the plurality of medicine dripping cavities (3) correspond one-to-one to and are individually connected to the plurality of medicine dripping ports (9); a plurality of medicine dripping heads (7) are provided, and are respectively connected to the plurality of medicine dripping cavities (3).

4. A urological catheter as claimed in claim 2, characterized in that: The catheter body (1) further comprises an air channel (15), a first end of the air channel (15) being in communication with an end of the medicine dripping cavity (3) away from the connecting pipe (5), and a second end of the air channel (15) being connected to a first air source; a medicine adding port (14) is arranged on the side wall of the catheter body (1), the medicine adding port (14) being in communication with the medicine dripping cavity (3), and the medicine dripping head (7) being connected to a second air source; A first stopper (10) and a second stopper (11) are arranged in the medicine dropping chamber (3), and the first stopper (10) and the second stopper (11) are slidably and sealingly connected to the medicine dropping chamber (3); The medicine dropping port (9) is a pressure-type opening, which opens outwards after being subjected to a certain pressure.

5. A urological catheter as claimed in claim 4, characterized in that: A first inclined surface is provided at one end of the first stopper (10) close to the second stopper (11), and a second inclined surface is provided on the second stopper (11); the first inclined surface and the second inclined surface form a V-shaped opening, and the opening end of the V-shaped opening is close to the drug addition port (14).

6. A urological catheter according to any one of claims 1 to 5, characterized in that: A traction wire (12) is arranged in the flushing cavity (4).

7. A urological catheter as claimed in claim 6, characterized in that: A plurality of annular frames (13) are axially arranged on the inner wall of one end of the flushing cavity (4) away from the connecting pipeline (5).

8. A urological catheter as claimed in claim 7, characterized in that: A plurality of the traction wires (12) are arranged along the circumferential direction, and the plurality of the traction wires (12) are connected to the annular skeleton (13).

9. The urological catheter according to claim 6, characterized in that: The urinary catheter body (1) is provided with a pressure sensor, a pH sensor and a temperature sensor.

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