Bladder irrigation and drainage device for double-cavity catheter

Abstract

The utility model relates to the technical field of medical instruments, in particular to a bladder irrigation and drainage device with a double-cavity catheter, which comprises a catheter, a three-way valve, a one-way valve, a drainage tube and a drainage bag, the three-way valve comprises a catheterization port, an irrigation port and a drainage port, the catheterization port is communicated with one end of the catheter, the other end of the catheter is communicated with a bladder, and the drainage bag is communicated with the irrigation port. The flushing opening can be communicated with the urinary catheterization opening; the drainage opening is communicated with one end of the drainage tube through the one-way valve, the other end of the drainage tube is connected with the drainage bag, and the drainage opening can be communicated with the urethral catheterization opening. By arranging the one-way valve, when the pressure in the bladder reaches a certain threshold value, drainage liquid can flow to the drainage tube and the drainage bag through the one-way valve, so that flushing liquid can be stored as long as possible under the safe pressure threshold value of the bladder, and a better cleaning effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially relates to a double -cavity urinary catheter bladder irrigation drainage device. BACKGROUND

[0002] Bladder irrigation is to use a urinary catheter to pour irrigation liquid into the bladder and then use the siphon principle to drain the poured liquid out. However, the current irrigation method cannot achieve good irrigation effect because the irrigation liquid in the bladder is drained out soon.

[0003] To solve the above problems, the utility model provides a double -cavity urinary catheter bladder irrigation drainage device, which can keep the irrigation liquid in the bladder for a long time under a safe pressure threshold, achieving better cleaning effect. UTILITY MODEL CONTENT

[0004] The utility model discloses a double -cavity urinary catheter bladder irrigation drainage device, which can keep the irrigation liquid in the bladder for a long time under a safe pressure threshold, achieving better cleaning effect.

[0005] In order to realize the utility model's purpose, the utility model adopts the technical scheme that:

[0006] The utility model discloses a double -cavity urinary catheter bladder irrigation drainage device, including urinary catheter, three -way valve, check valve, drainage tube and drainage bag, three -way valve includes urinary mouth, irrigation port and drainage port, urinary mouth with one end of urinary catheter communicates, the other end of urinary catheter communicates with bladder, irrigation port can communicate with urinary mouth, the drainage port passes through check valve and communicates with one end of drainage tube, the other end of drainage tube is connected with drainage bag, and the drainage port can communicate with urinary mouth.

[0007] The check valve includes the connector, the sleeve, the ring block, the steel ball, the compression spring and the plug, one end of the connector communicates with the drainage port, and the other end communicates with the top of the sleeve, the inner wall of the sleeve is equipped with the ring block, the axial direction of the ring block is equipped with the taper hole that the inner diameter of cross section gradually reduces from top to bottom, and the inner diameter of the bottom of the taper hole is less than the outer diameter of the steel ball, the top of the steel ball is in close contact with the bottom of the taper hole, the bottom of the steel ball is connected with the top of the compression spring, the bottom of the compression spring is in close contact with the top of the plug, the outer wall of the plug is connected with the outer wall of the sleeve, the axial direction of the plug is equipped with the drainage channel, and one end of the drainage channel communicates with the drainage tube.

[0008] The outer wall of the plug is provided with external threads, and the inner wall of the sleeve is provided with internal threads matching the external threads.

[0009] The sleeve is a transparent tube, and the outer wall of the sleeve is provided with scale lines along the axial direction.

[0010] The top end of the plug is provided with three limiting rods in an annular array along the axial direction, and the inner wall of the compression spring is sleeved on the outside of the three limiting rods.

[0011] The bottom end of the outer wall of the plug is provided with a rotating part, and the outer wall of the rotating part is provided with anti-skid lines.

[0012] The three-way valve further comprises a valve seat, a valve body, a rotating handle and a limiting block. The valve seat is in an annular structure, and the side wall of the valve seat is respectively provided with the urine outlet, the flushing outlet and the drainage outlet. The valve body is in a cylindrical structure, and the outer diameter of the valve body is equal to the inner diameter of the valve seat, and the height of the valve body is equal to the height of the valve seat. The side wall of the valve body is provided with a three-way outlet in a "⊥" shape. The bottom end of the valve body is connected with the limiting block, and the limiting block is in a cylindrical structure, and the outer diameter of the limiting block is equal to the outer diameter of the valve seat. The rotating handle comprises a base and a handle. The bottom end of the base is connected with the valve body, the inner end of the three handles is connected with the outer wall of the base to form a "⊥" structure, and the direction of the three handles is consistent with the direction of the three-way outlet.

[0013] The utility model discloses beneficial effect lies in:

[0014] (1) the utility model discloses a one-way valve when the pressure in the bladder reaches a certain threshold value, and the drainage liquid can flow to the drainage tube and the drainage bag through the one-way valve, so that the bladder can store the flushing liquid for as long as possible under the safe pressure threshold value, to achieve better cleaning effect.

[0015] (2) the utility model discloses that the outer wall of the plug is provided with external threads, and the inner wall of the sleeve is provided with internal threads matching the external threads, which facilitates the connection between the plug and the inner wall of the sleeve, and can adjust the spring force of the compression spring, so that the bladder of the patient can be drained when reaching the spring force threshold value of the compression spring. BRIEF DESCRIPTION OF DRAWINGS

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

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is Figure 2 the section view along A-A;

[0019] Figure 4 It isFigure 2 the section along B-B;

[0020] Figure 5 It is the exploded schematic view of the one-way valve in the utility model.

[0021] In the figure: 1 catheter, 2 three-way valve, 3 one-way valve, 4 drainage tube, 5 drainage bag, 21 catheterization port, 22 flushing port, 23 drainage port, 24 valve seat, 25 valve body, 26 rotating handle, 261 base, 262 handle, 27 limit block, 28 three-way port, 31 connecting head, 32 sleeve, 33 annular block, 34 steel ball, 35 compression spring, 36 plug, 37 conical hole, 38 drainage channel, 39 external thread, 40 internal thread, 41 scale line, 42 limit rod, 43 rotating part. DETAILED DESCRIPTION

[0022] The utility model is further explained as follows:

[0023] Please refer to Figures 1-5 ,

[0024] The utility model discloses a kind of double-cavity catheter bladder flushing drainage device, including catheter 1, three-way valve 2, one-way valve 3, drainage tube 4 and drainage bag 5, the three-way valve 2 includes catheterization port 21, flushing port 22 and drainage port 23, the catheterization port 21 is communicated with one end of the catheter 1, another end of the catheter 1 is communicated with bladder, the flushing port 22 can be communicated with the catheterization port 21;The drainage port 23 is communicated with one end of drainage tube 4 by the one-way valve 3, another end of the drainage tube 4 is connected with the drainage bag 5, the drainage port 23 can be communicated with the catheterization port 21, when medical staff needs to flush the bladder of patient, adjust three-way valve 2 to make the catheterization port 21 communicate with flushing port 22, make syringe with flushing liquid with flushing port 22 be connected, and flushing liquid is injected into bladder, then adjust three-way valve 2 to make the catheterization port 21 communicate with drainage port 23, by setting one-way valve 3 when the pressure in bladder reaches certain threshold value, drainage liquid can flow to drainage tube 4 and drainage bag 5 by one-way valve 3, can make bladder save flushing liquid as long as possible under the safe pressure threshold, to reach better cleaning effect.

[0025] Further, the one-way valve 3 comprises a connecting head 31, a sleeve 32, an annular block 33, a steel ball 34, a compression spring 35 and a plug 36, one end of the connecting head 31 is communicated with the drainage port 23, the other end is communicated with the top end of the sleeve 32, the inner wall of the sleeve 32 is provided with the annular block 33, the axial direction of the annular block 33 is provided with a tapered hole 37 with a gradually decreasing inner diameter from top to bottom, the bottom end inner diameter of the tapered hole 37 is smaller than the outer diameter of the steel ball 34; the top end of the steel ball 34 is in close contact with the bottom end of the tapered hole 37, the bottom end of the steel ball 34 is connected with the top end of the compression spring 35, the bottom end of the compression spring 35 is in close contact with the top end of the plug 36, the outer wall of the plug 36 is connected with the lower outer wall of the sleeve 32, the axial direction of the plug 36 is provided with a drainage channel 38, the drainage channel 38 is communicated with one end of the drainage tube 4, when the pressure in the bladder of the patient reaches the spring force threshold of the compression spring 35, the drainage liquid in the bladder pushes away the steel ball 34 to flow into the drainage bag 5 through the drainage channel 38 and the drainage tube 4, when the pressure in the bladder is less than the spring force threshold of the compression spring 35, the steel ball 34 can reseal the bottom end of the tapered hole 37 due to the reset action of the compression spring 35, and no longer drainage.

[0026] Further, the outer wall of the plug 36 is provided with external threads 39, the inner wall of the sleeve 32 is provided with internal threads 40 matched with the external threads 39, which facilitates the connection between the plug 36 and the inner wall of the sleeve 32, and can adjust the spring force of the compression spring 35, so that the bladder of the patient can be drained when reaching the spring force threshold of the compression spring 35.

[0027] Further, the sleeve 32 is a transparent tube, the outer wall of which is provided with scale lines 41 along the axial direction, because the length of the compression spring 35 is longer, the spring force is smaller, and the length is shorter, the spring force is larger, that is, when the steel ball 34 is in close contact with the bottom end of the tapered hole 37, the length of the compression spring 35 can be adjusted by adjusting the distance between the top end of the plug 36 and the bottom end of the tapered hole 37, that is, adjusting the pressure in the bladder when the steel ball 34 can be pushed away to drain; the scale lines 41 can mark the position of the plug corresponding to the pressure in the bladder at this time, so that the medical staff can adjust the plug 36 to the appropriate position through the threads, so that the pressure in the bladder of the patient is greater than the spring force threshold of the compression spring 35 at this time to drain.

[0028] Further, the top end of the plug 36 is provided with three limiting rods 42 in an annular array in the axial direction, and the inner wall of the compression spring 35 is sleeved outside the three limiting rods 42; the outer wall of the limiting rod 42 is tangent to the inner wall of the drainage channel 38, and the limiting rod 42 can limit the position of the bottom end of the compression spring 35 without affecting the flow of the drainage liquid to the drainage channel 38, so that the position deviation is avoided to cause the steel ball 34 to fail to close the bottom end of the conical hole 37.

[0029] Further, the bottom end of the outer wall of the plug 36 is provided with a rotating part 43, and the outer wall of the rotating part 43 is provided with anti-skid lines to facilitate the rotation of the plug 36 by medical staff to adjust the one-way valve 3 to a suitable pressure.

[0030] Further, the three-way valve 2 further comprises a valve seat 24, a valve body 25, a rotating handle 26 and a limiting block 27, the valve seat 24 is in an annular structure, and the side wall thereof is respectively provided with the catheterization port 21, the irrigation port 22 and the drainage port 23; the valve body 25 is in a cylindrical structure, and the outer diameter thereof is equal to the inner diameter of the valve seat 24, and the heights of the valve body 25 and the valve seat 24 are equal; the side wall of the valve body 25 is provided with a three-way port 28 in a “⊥” shape; the bottom end of the valve body 25 is connected with the limiting block 27, and the limiting block 27 is in a cylindrical structure, and the outer diameter thereof is equal to the outer diameter of the valve seat 24; the rotating handle 26 comprises a base 261 and three handles 262, the bottom end of the base 261 is connected with the valve body 25, the inner ends of the three handles 262 are connected with the outer wall of the base 261 to form a “⊥” shape, and the directions of the three handles 262 are consistent with the direction of the three-way port 28; in the embodiment, the top end and the bottom end of the valve body 25 are respectively limited by the base 261 and the limiting block 27, so that the three-way port 28 on the valve body 25 can be in communication with the catheterization port 21, the irrigation port 22 and the drainage port 23; and the directions of the three handles 262 are consistent with the direction of the three-way port 28, so that the medical staff can conveniently connect the drainage port 23 with the catheterization port 21 or connect the catheterization port 21 with the irrigation port 22.

[0031] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent transformation or direct or indirect application in the related technical field according to the content of the present application is also included in the patent protection range of the present application.

Claims

1. A double-lumen urinary catheter bladder irrigation and drainage device, characterized by: It comprises a urinary catheter (1), a three-way valve (2), a one-way valve (3), a drainage tube (4) and a drainage bag (5). The three-way valve (2) comprises a urinary catheter port (21), a flushing port (22) and a drainage port (23); the urinary catheter port (21) is in communication with one end of the urinary catheter (1); the other end of the urinary catheter (1) is in communication with the bladder; and the flushing port (22) can be in communication with the urinary catheter port (21); The drainage port (23) is connected to one end of the drainage tube (4) through the one-way valve (3), and the other end of the drainage tube (4) is connected to the drainage bag (5). The drainage port (23) can be connected to the urinary catheter port (21).

2. A double-lumen urinary catheter bladder irrigation and drainage device according to claim 1, characterized in that: The one-way valve (3) comprises a connector (31), a sleeve (32), an annular block (33), a steel ball (34), a compression spring (35) and a plug (36). One end of the connector (31) is in communication with the drainage port (23), and the other end is in communication with the top end of the sleeve (32). The annular block (33) is provided above the inner wall of the sleeve (32). The annular block (33) is provided axially with a tapered hole (37) whose inner diameter of the cross section gradually decreases from top to bottom. The inner diameter of the bottom end of the tapered hole (37) is less than The outer diameter of the steel ball (34); the top end of the steel ball (34) is in tight contact with the bottom end of the tapered hole (37); the bottom end of the steel ball (34) is connected to the top end of the compression spring (35); the bottom end of the compression spring (35) is in tight contact with the top end of the plug (36); the upper part of the outer wall of the plug (36) is connected to the lower part of the outer wall of the sleeve (32); a drainage channel (38) is provided in the axial direction of the plug (36); and the drainage channel (38) is connected to one end of the drainage tube (4).

3. The double-lumen urinary catheter bladder irrigation and drainage device according to claim 2, characterized in that: An external thread (39) is provided on the outer wall of the plug (36), and an internal thread (40) matching and engaging with the external thread (39) is provided below the inner wall of the sleeve (32).

4. A double-lumen urinary catheter bladder irrigation and drainage device according to claim 3, characterized in that: The sleeve (32) is a transparent tube, and scale lines (41) are provided on its outer wall along its axial direction.

5. The double-lumen urinary catheter bladder irrigation and drainage device according to claim 4, characterized in that: The top end of the plug (36) has three limiting rods (42) arranged in an annular array in its axial direction, and the bottom end of the inner wall of the compression spring (35) is sleeved on the outside of the three limiting rods (42); the outer wall of the limiting rod (42) is tangent to the inner wall of the drainage channel (38).

6. The double-lumen urinary catheter bladder irrigation and drainage device according to claim 5, characterized in that: A rotating portion (43) is provided at the bottom end of the outer wall of the plug (36), and an anti-slip pattern is provided on the outer wall of the rotating portion (43).

7. The double-lumen urinary catheter bladder irrigation and drainage device according to claim 1, characterized in that: The three-way valve (2) further comprises a valve seat (24), a valve body (25), a rotating handle (26) and a stopper (27); the valve seat (24) is an annular structure, and the urinary catheter port (21), the flushing port (22) and the drainage port (23) are respectively provided on its side wall; the valve body (25) is a cylindrical structure, and its outer diameter is equal to the inner diameter of the valve seat (24), and the heights of the two are equal; the side wall of the valve body (25) is provided with a three-way port (28) in the shape of a "⊥" character; the valve body (25) The bottom end of the valve body (25) is connected to the limit block (27), and the limit block (27) is a cylindrical structure, and its outer diameter is equal to the outer diameter of the valve seat (24); the rotating handle (26) includes a base (261) and a handle (262), the bottom end of the base (261) is connected to the valve body (25), and the inner ends of the three handles (262) are connected to the outer wall of the base (261) to form a "⊥"-shaped structure, and the direction of the three handles (262) is consistent with the direction of the three-way port (28).

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