Dilation drainage device for urinary surgery

Abstract

The invention discloses a urinary surgery dilation drainage device, and relates to the technical field of medical instruments, the urinary surgery dilation drainage device comprises a drainage mechanism, the drainage mechanism comprises a drainage catheter, an anti-reflux part and a urination catheter head part, the urination catheter head part comprises a urination catheter body, and a first leakage-proof assembly is arranged in the urination catheter body; the urine collection bag comprises a bag body and a urine inlet end part fixed on the bag body, the urine inlet end part is connected with the urination catheter head part, the urine inlet end part comprises a urine inlet catheter body, and a second leakage-proof assembly is arranged in the urine inlet catheter body. When the urination catheter head part is separated from the urine inlet end part, an inner cavity in the lower portion of the urination catheter head part is automatically blocked, urine is prevented from continuously dripping and flowing out, meanwhile, the upper end of the urine inlet end part is automatically blocked, urine in the bag body is prevented from spilling out, the sanitation performance is improved, and pollution and infection caused by urine leakage when the urine collection bag is replaced are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a urology dilation and drainage device. Background Art

[0002] Urology is a branch of medicine that specializes in the study of the male and female urinary systems and the male reproductive system. It is a sub-specialty derived from surgery. Its treatment scope includes various urinary stones and complex kidney stones; kidney and bladder tumors; prostatic hyperplasia and prostatitis; inflammation and tumors of the testicular epididymis; testicular hydrocele; various urinary system injuries; congenital malformations of the urinary system, such as hypospadias, cryptorchidism, and hydronephrosis caused by stenosis of the ureteropelvic junction.

[0003] In the urology department, patients usually need to use a urinary catheter to discharge urine. The urination end of the urinary catheter is connected to a urine collection bag, which is used to collect urine. When the patient is catheterized, if the urine collection bag is accidentally pressed, the urine in the urine collection bag will flow back through the urinary catheter, causing injury. In addition, most of the existing urine collection bags have no leak-proof components at the urine inlet and the urination end of the urinary catheter, which causes the urine in the urine collection bag to easily spill out of the urine inlet when the urine collection bag is separated from the urinary catheter. At the same time, the urination end of the urinary catheter is likely to continue to drip urine, causing infection to medical staff who replace the urine collection bag. Summary of the invention

[0004] The purpose of the present invention is to provide a urology dilation and drainage device to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a urology dilation and drainage device, comprising:

[0006] The drainage mechanism comprises a drainage catheter, an anti-backflow component and a urination tube head component, wherein the anti-backflow component is installed at the urination end of the drainage catheter, and the urination tube head component is installed at the end of the anti-backflow component away from the drainage catheter, the anti-backflow component comprises a rectangular tube body, an anti-backflow component is arranged inside the rectangular tube body, the urination tube head component comprises a urination tube body, a first anti-leakage component is arranged inside the urination tube body, a threaded sleeve is rotatably sleeved on the outer side of the urination tube body, and a plurality of urination openings are opened at equal intervals at the bottom of the side wall of the urination tube body;

[0007] A urine collecting bag, comprising a bag body and a urine inlet end component fixed on the bag body, wherein the urine inlet end component is connected to a urination tube head component, wherein the urine inlet end component comprises a urine inlet tube body, wherein the urine inlet tube body is threadedly connected to a threaded sleeve, wherein a second leak-proof component is provided inside the urine inlet tube body, and the second leak-proof component matches the first leak-proof component.

[0008] Preferably, a rectangular anti-backflow cavity is opened inside the rectangular tube body, and the anti-backflow assembly includes a rectangular frame seat and an inclined plate, a liquid outlet is opened in the middle of the rectangular frame seat, and a guide plate is hinged at the lower rear part of the rectangular frame seat, and the guide plate is inclined downward, and a gear rod is fixed to the lower cavity body of the rectangular anti-backflow cavity, and the lower part of the lower side surface of the guide plate is in conflict with the gear rod, and the upper end of the inclined plate is connected to the front side wall of the rectangular anti-backflow cavity, and the inclined plate is located below the guide plate, and the inclination direction of the inclined plate is opposite to the inclination direction of the guide plate. When the urine collecting bag is accidentally squeezed to make urine flow back into the rectangular anti-backflow cavity, the urine squeezes the guide plate, causing the guide plate to rotate upward to cover the liquid outlet on the rectangular frame seat, thereby preventing urine from flowing back through the drainage catheter.

[0009] Preferably, the first anti-leakage component includes a drainage pan seat and a drainage baffle ring, the edges of the drainage pan seat and the drainage baffle ring are fixedly connected to the inner wall of the urination tube body, the drainage pan seat is located above the drainage baffle ring, and a plurality of drainage ports are formed on the edge of the drainage pan seat, a first spring is connected to the middle portion of the lower side of the drainage port, and a drainage baffle pan is connected to the lower end of the first spring, when the urine collecting bag is separated from the urination tube head component, under the elastic force of the first spring, the drainage baffle pan moves downward and contacts the drainage baffle ring, thereby sealing the drainage baffle ring and preventing urine from leaking.

[0010] Preferably, the second anti-leakage component comprises a liquid inlet pan seat and a liquid inlet ring cover, the edge of the liquid inlet ring cover is fixedly connected to the inner wall of the top end of the urine inlet tube body, the edge of the liquid inlet pan seat is fixedly connected to the inner wall of the urine inlet tube body, the liquid inlet pan seat is located below the liquid inlet ring cover, a plurality of liquid inlet ports are provided on the edge of the liquid inlet pan seat, a support rod is fixed to the middle part of the upper side of the liquid inlet pan seat, the top end of the support rod extends into the liquid inlet ring cover and is fixed with a top plate, a liquid inlet baffle plate is slidably sleeved on the support rod, a second spring is connected between the liquid inlet baffle plate and the liquid inlet pan seat, and the second spring is sleeved on the support rod;

[0011] When the urine collecting bag is connected to the urination tube head component, the urination tube body on the urination tube head component extends into the liquid inlet ring cover and squeezes the liquid inlet baffle plate, so that the liquid inlet baffle plate moves down and squeezes the second spring, thereby separating the liquid inlet baffle plate from the liquid inlet ring cover, so that the inner cavity of the urine inlet tube body and the inner cavity of the urination tube body are connected, which facilitates the patient's urine to flow into the bag body through the urination tube body and the urine inlet end component for collection; when the urine collecting bag is separated from the urination tube head component, under the elastic force of the second spring, the liquid inlet baffle plate moves up and conflicts with the liquid inlet ring cover, thereby sealing the liquid inlet ring cover and preventing urine in the bag body from spilling out.

[0012] Preferably, the diameter of the drainage baffle plate is smaller than the outer ring diameter of the drainage baffle ring, and the diameter of the drainage baffle plate is larger than the inner ring hole diameter of the drainage baffle ring, and the drainage baffle plate can move in the urination tube body so that the lower side of the drainage baffle plate can conflict with the upper side of the drainage baffle ring;

[0013] A liquid inlet ring opening is opened in the middle of the liquid inlet ring cover, the diameter of the top plate is larger than the diameter of the support rod, the diameter of the top plate is smaller than the diameter of the liquid inlet ring opening, the diameter of the liquid inlet baffle plate is smaller than the outer ring diameter of the liquid inlet ring cover, and the diameter of the liquid inlet baffle plate is larger than the diameter of the liquid inlet ring opening.

[0014] Preferably, the outer ring diameter of the urination tube body is the same as the diameter of the liquid inlet ring, so that the urination tube body can be inserted into the liquid inlet ring and contact the liquid inlet baffle;

[0015] The diameter of the top plate is smaller than the diameter of the inner ring hole of the drainage baffle ring, so that the top plate can pass through the drainage baffle ring and contact the drainage baffle plate.

[0016] Preferably, a limiting ring is fixed on the urine inlet tube body, and the outer wall of the urine inlet tube body located above the limiting ring is provided with an external thread matching the internal thread of the threaded sleeve, and the outer wall of the threaded sleeve is fixed with convex strips at equal intervals, and the convex strips increase the friction between the hand and the threaded sleeve, thereby facilitating the rotation of the threaded sleeve. The threaded sleeve and the urine inlet tube body are threadedly connected, and the connection is simple and reliable.

[0017] Preferably, a rotating hole communicating with the threaded cavity is provided in the middle of the upper side of the threaded sleeve, and the threaded sleeve is sleeved on the urinary tube body through the rotating hole. A first convex ring and a second convex ring are respectively provided on the upper and lower sides of the rotating hole. The first convex ring and the second convex ring are both fixedly sleeved on the outer wall of the urinary tube body, and the diameters of the first convex ring and the second convex ring are both larger than the diameter of the rotating hole. The second convex ring is nested in the threaded sleeve, so that the threaded sleeve can be stably installed on the urinary tube body and can rotate at the same time.

[0018] Preferably, the liquid inlet tray seat and the top tray are integrally formed with the support rod, which facilitates processing and forming.

[0019] Preferably, the urination tube body is a hard tube, and sealing rubber pads are fixed to the lower side of the drainage baffle plate and the upper side of the inlet baffle plate to improve the sealing performance when the drainage baffle plate contacts the drainage baffle ring, and improve the sealing performance when the inlet baffle plate contacts the inlet ring cover. A sliding hole is opened in the middle of the inlet baffle plate, and the inlet baffle plate is slidably connected to the support rod through the sliding hole.

[0020] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0021] 1. A urine inlet end component is provided at the top of the bag body, and an anti-backflow component and a urine discharge tube head component are provided at the urine discharge end of the drainage catheter. When the urine discharge tube head component is connected to the urine inlet end component, the inner cavity of the urine discharge tube body on the urine discharge tube head component is connected with the inner cavity of the urine discharge tube body on the urine discharge end component, so that the patient's urine can flow into the bag body through the drainage catheter, the anti-backflow component, the urine discharge tube head component and the urine inlet end component in sequence for collection. When the urine discharge tube head component is separated from the urine inlet end component, the inner cavity of the lower part of the urine discharge tube head component is automatically blocked under the action of the first anti-leakage component in the urine discharge tube head component to prevent urine from continuing to drip and flow out. At the same time, under the action of the second anti-leakage component in the urine inlet end component, the upper end of the urine inlet end component is automatically blocked to prevent urine in the bag body from spilling out, thereby improving the hygienic performance and preventing urine leakage when the urine collecting bag is replaced to cause pollution and infection;

[0022] 2. By providing an anti-backflow component at the urination end of the drainage catheter, when the urine collecting bag is accidentally squeezed, the urine flows back into the rectangular anti-backflow cavity, and the urine squeezes the guide plate, causing the guide plate to rotate upward to cover the liquid outlet on the rectangular frame seat, thereby preventing urine from flowing back through the drainage catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a three-dimensional cross-sectional view of the anti-backflow component of the present invention;

[0026] Figure 3 It is a schematic diagram of the connection between the rectangular frame seat and the guide plate of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the urine collecting bag of the present invention;

[0028] Figure 5 It is a three-dimensional cross-sectional view of the connection between the urine discharge tube head component and the urine inlet end component of the present invention;

[0029] Figure 6 It is a schematic structural diagram of the urination tube head component of the present invention;

[0030] Figure 7 For the present invention Figure 6 Another angle diagram of the;

[0031] Figure 8It is a three-dimensional cross-sectional view of the urination tube head component of the present invention;

[0032] Fig. 9 It is a three-dimensional cross-sectional view of the urine inlet end component of the present invention.

[0033] Description of reference numerals:

[0034] 10. Drainage catheter;

[0035] 20. Anti-backflow component; 21. Rectangular tube body; 22. Rectangular anti-backflow cavity; 23. Rectangular frame seat; 24. Liquid outlet; 25. Guide plate; 26. Gear lever; 27. Inclined plate;

[0036] 30. Urine discharge tube head component; 31. Urine discharge tube body; 311. Urine discharge port; 32. Threaded sleeve; 321. Raised strip; 33. Drainage disk seat; 331. Drainage port; 34. Drainage baffle ring; 35. First spring; 36. Drainage baffle disk; 37. First convex ring; 38. Second convex ring;

[0037] 40. Bag body;

[0038] 50. Urine inlet end component; 51. Urine inlet tube body; 52. Liquid inlet disc seat; 521. Liquid inlet port; 53. Liquid inlet ring cover; 531. Liquid inlet ring port; 54. Support rod; 55. Top plate; 56. Liquid inlet baffle plate; 57. Second spring; 58. Limiting ring. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] The present invention provides Figure 1 and Figures 4 to 9 A urological dilatation and drainage device is shown, comprising:

[0041] The drainage mechanism includes a drainage catheter 10, a backflow prevention component 20 and a urination tube head component 30. The backflow prevention component 20 is installed at the urination end of the drainage catheter 10. The urination tube head component 30 is installed at the end of the backflow prevention component 20 away from the drainage catheter 10. The urination tube head component 30 includes a urination tube body 31. The interior of the urination tube body 31 is provided with a first anti-leakage component. The outer side of the urination tube body 31 is rotatably sleeved with a threaded sleeve 32. The bottom of the side wall of the urination tube body 31 is provided with a plurality of urination openings 311 at equal intervals.

[0042] The urine collecting bag comprises a bag body 40 and a urine inlet end component 50 fixed on the bag body 40, the urine inlet end component 50 is connected to the urination tube head component 30, the urine inlet end component 50 comprises a urine inlet tube body 51, the urine inlet tube body 51 is threadedly connected to the threaded sleeve 32, a second leak-proof component is arranged inside the urine inlet tube body 51, and the second leak-proof component matches the first leak-proof component.

[0043] The first anti-leakage component includes a drainage pan seat 33 and a drainage baffle ring 34, the edges of the drainage pan seat 33 and the drainage baffle ring 34 are fixedly connected to the inner wall of the urination tube body 31, the drainage pan seat 33 is located above the drainage baffle ring 34, and a plurality of drainage ports 331 are provided on the edge of the drainage pan seat 33, a first spring 35 is connected to the middle of the lower side of the drainage port 331, and a drainage baffle pan 36 is connected to the lower end of the first spring 35. When the urine collecting bag is separated from the urination tube head component 30, under the elastic force of the first spring 35, the drainage baffle pan 36 moves down and contacts the drainage baffle ring 34, thereby sealing the drainage baffle ring 34 and preventing urine from leaking.

[0044] The second anti-leakage component includes a liquid inlet pan seat 52 and a liquid inlet ring cover 53. The edge of the liquid inlet ring cover 53 is fixedly connected to the inner wall of the top end of the urine inlet tube body 51. The edge of the liquid inlet pan seat 52 is fixedly connected to the inner wall of the urine inlet tube body 51. The liquid inlet pan seat 52 is located below the liquid inlet ring cover 53. The edge of the liquid inlet pan seat 52 is provided with a plurality of liquid inlet ports 521. A support rod 54 is fixed to the middle part of the upper side of the liquid inlet pan seat 52. The top end of the support rod 54 extends into the liquid inlet ring cover 53 and is fixed with a top pan 55. A liquid inlet baffle plate 56 is slidably sleeved on the support rod 54. A second spring 57 is connected between the liquid inlet baffle plate 56 and the liquid inlet pan seat 52. The second spring 57 is sleeved on the support rod 54.

[0045] When the urine collecting bag is connected to the urination tube head component 30, the urination tube body 31 on the urination tube head component 30 extends into the liquid inlet ring cover 53 and squeezes the liquid inlet baffle plate 56, so that the liquid inlet baffle plate 56 moves down to squeeze the second spring 57, thereby separating the liquid inlet baffle plate 56 from the liquid inlet ring cover 53, so that the inner cavity of the urine inlet tube body 51 is connected with the inner cavity of the urination tube body 31, which facilitates the patient's urine to flow into the bag body 40 through the urination tube body 31 and the urine inlet end component 50 for collection. When the urine collecting bag is separated from the urination tube head component 30, under the elastic force of the second spring 57, the liquid inlet baffle plate 56 moves up and conflicts with the liquid inlet ring cover 53, thereby sealing the liquid inlet ring cover 53 and preventing the urine in the bag body 40 from spilling out.

[0046] The diameter of the drainage baffle plate 36 is smaller than the outer ring diameter of the drainage baffle ring 34, and the diameter of the drainage baffle plate 36 is larger than the inner ring hole diameter of the drainage baffle ring 34. The drainage baffle plate 36 can move in the urination tube body 31, so that the lower side of the drainage baffle plate 36 can conflict with the upper side of the drainage baffle ring 34.

[0047] A liquid inlet ring opening 531 is opened in the middle of the liquid inlet ring cover 53, the diameter of the top plate 55 is larger than the diameter of the support rod 54, the diameter of the top plate 55 is smaller than the diameter of the liquid inlet ring opening 531, the diameter of the liquid inlet baffle plate 56 is smaller than the outer ring diameter of the liquid inlet ring cover 53, and the diameter of the liquid inlet baffle plate 56 is larger than the diameter of the liquid inlet ring opening 531.

[0048] The outer diameter of the urination tube body 31 is the same as the diameter of the liquid inlet ring 531, so that the urination tube body 31 can be inserted into the liquid inlet ring 531 and contact the liquid inlet baffle 56;

[0049] The diameter of the top plate 55 is smaller than the diameter of the inner ring hole of the drain baffle ring 34 , so that the top plate 55 can pass through the drain baffle ring 34 and contact the drain baffle plate 36 .

[0050] A limiting ring 58 is fixed on the urine inlet tube body 51, and the outer wall of the urine inlet tube body 51 located above the limiting ring 58 is provided with an external thread matching the internal thread of the threaded sleeve 32, and the outer wall of the threaded sleeve 32 is fixed with convex strips 321 at equal intervals. The convex strips 321 increase the friction between the hand and the threaded sleeve 32, thereby facilitating the rotation of the threaded sleeve 32. The threaded sleeve 32 and the urine inlet tube body 51 are threadedly connected, and the connection is simple and reliable.

[0051] A rotating hole that is connected to the threaded cavity is provided in the middle of the upper side of the threaded sleeve 32. The threaded sleeve 32 is sleeved on the urination tube body 31 through the rotating hole. A first convex ring 37 and a second convex ring 38 are provided on the upper and lower sides of the rotating hole respectively. The first convex ring 37 and the second convex ring 38 are both fixedly sleeved on the outer wall of the urination tube body 31. The diameters of the first convex ring 37 and the second convex ring 38 are both larger than the diameter of the rotating hole. The second convex ring 38 is nested in the threaded sleeve 32, so that the threaded sleeve 32 can be stably installed on the urination tube body 31 and can rotate at the same time.

[0052] The liquid inlet tray seat 52, the top tray 55 and the support rod 54 are integrally formed, which is convenient for processing and forming.

[0053] The urination tube body 31 is a hard tube, and sealing rubber pads are fixed to the lower side of the discharge baffle plate 36 and the upper side of the inlet baffle plate 56 to improve the sealing performance when the discharge baffle plate 36 contacts the discharge baffle ring 34, and improve the sealing performance when the inlet baffle plate 56 contacts the inlet ring cover 53. A sliding hole is opened in the middle of the inlet baffle plate 56, and the inlet baffle plate 56 is slidably connected to the support rod 54 through the sliding hole.

[0054] In the present invention, a urine inlet end component 50 is provided at the top of the bag body 40, and an anti-backflow component 20 and a urine discharge tube head component 30 are provided at the urine discharge end of the drainage catheter 10. When the urine discharge tube head component 30 is connected to the urine inlet end component 50, the urine discharge tube body 31 on the anti-backflow component 20 is first aligned with the liquid inlet ring 531 on the urine inlet end component 50, and the threaded sleeve 32 on the anti-backflow component 20 is aligned with the urine inlet tube body 51 on the urine inlet end component 50, and then the threaded sleeve 32 is rotated so that the threaded sleeve 32 rotates downward and is threadedly sleeved on the urine inlet tube body 51. When the threaded sleeve 32 rotates downward, the threaded sleeve 32 rotates downward, driving the urine discharge tube head component 30 to move downward, so that the urine discharge tube body 31 on the anti-backflow component 20 passes through the liquid inlet ring 531 on the urine inlet end component 50, and squeezes the liquid inlet baffle 56 on the urine inlet end component 50. The liquid inlet baffle plate 56 moves downward to squeeze the second spring 57, and the liquid inlet baffle plate 56 is separated from the liquid inlet ring cover 53, thereby releasing the blockage of the end of the urine inlet end head component 50. At the same time, when the urinary tube head component 30 moves downward, the discharge baffle plate 36 on the urinary tube head component 30 contacts the top plate 55 on the urine inlet end head component 50. As the urinary tube head component 30 moves downward, the top plate 55 squeezes the discharge baffle plate 36, so that the discharge baffle plate 36 moves upward to squeeze the first spring 35, and the discharge baffle plate 36 is separated from the discharge baffle ring 34, thereby releasing the blockage of the lower part of the urinary tube head component 30, thereby realizing that the inner cavity of the urinary tube body 31 on the urinary tube head component 30 is connected with the inner cavity of the urinary tube body 51 on the urine inlet end head component 50, so that the patient's urine can flow into the bag body 40 through the drainage catheter 10, the anti-backflow component 20, the urinary tube head component 30 and the urine inlet end head component 50 in sequence for collection;

[0055] When the urination tube head component 30 is separated from the urine inlet end component 50, the urination tube body 31 on the urination tube head component 30 is separated from the liquid inlet baffle plate 56 on the urine inlet end component 50. Under the elastic force of the second spring 57, the liquid inlet baffle plate 56 moves up and contacts with the liquid inlet ring cover 53, thereby sealing the liquid inlet ring cover 53, realizing automatic sealing of the upper end of the urine inlet end component 50 to prevent urine in the bag body 40 from spilling out. At the same time, the top plate 55 on the urine inlet end component 50 is separated from the liquid discharge baffle plate 36 on the urination tube head component 30. Under the elastic force of the first spring 35, the liquid discharge baffle plate 36 moves down and contacts with the liquid discharge baffle ring 34, sealing the liquid discharge baffle ring 34, realizing automatic sealing of the lower inner cavity of the urination tube head component 30, thereby preventing urine from continuing to drip and flow out, improving the hygienic performance, and preventing urine leakage when the urine collecting bag is replaced to cause pollution and infection.

[0056] like Figures 1 to 3 As shown, the anti-backflow component 20 includes a rectangular tube body 21, and an anti-backflow component is provided inside the rectangular tube body 21.

[0057] A rectangular anti-backflow cavity 22 is opened inside the rectangular tube body 21, and the backflow prevention component includes a rectangular frame seat 23 and an inclined plate 27. A liquid outlet 24 is opened in the middle of the rectangular frame seat 23. A guide plate 25 is hinged at the lower rear part of the rectangular frame seat 23. The guide plate 25 is tilted downward. A stop rod 26 is fixed to the lower cavity of the rectangular anti-backflow cavity 22. The lower part of the lower side surface of the guide plate 25 is in conflict with the stop rod 26. The upper end of the inclined plate 27 is connected to the front side wall of the rectangular anti-backflow cavity 22. The inclined plate 27 is located below the guide plate 25, and the inclination direction of the inclined plate 27 is opposite to the inclination direction of the guide plate 25.

[0058] In the present invention, under normal circumstances, the guide plate 25 in the rectangular tube body 21 is tilted downward and conflicts with the gear lever 26. The gear lever 26 supports the guide plate 25 so that the guide plate 25 is in a tilted state. The guide plate 25 and the inclined plate 27 guide the urine so that the urine output by the drainage catheter 10 flows into the urination tube head component 30 through the rectangular anti-return cavity 22. When the urine collecting bag is accidentally squeezed, the urine flows back into the rectangular anti-return cavity 22. The urine first hits the inclined plate 27, and the inclined plate 27 preliminarily blocks the urine. Then, the urine hits the guide plate 25 through the gap between the inclined plate 27 and the inner wall of the rectangular anti-return cavity 22. The guide plate 25 is a movable plate. Under the impact of urine, the guide plate 25 rotates upward to cover the liquid outlet 24 on the rectangular frame seat 23, forming a blockage, thereby preventing urine from flowing back through the drainage catheter 10.

[0059] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A urology dilatation and drainage device, characterized in that: include: A drainage mechanism, the drainage mechanism comprising a drainage catheter (10), a backflow prevention component (20) and a urination tube head component (30), the backflow prevention component (20) being mounted on the urination end of the drainage catheter (10), the urination tube head component (30) being mounted on an end of the backflow prevention component (20) away from the drainage catheter (10), the backflow prevention component (20) comprising a rectangular tube body (21), an backflow prevention component being arranged inside the rectangular tube body (21), the urination tube head component (30) comprising a urination tube body (31), a first anti-leakage component being arranged inside the urination tube body (31), a threaded sleeve (32) being rotatably sleeved on the outer side of the urination tube body (31), and a plurality of urination openings (311) being arranged at equal intervals on the bottom of the side wall of the urination tube body (31); A urine collecting bag, the urine collecting bag comprising a bag body (40) and a urine inlet end component (50) fixed on the bag body (40), the urine inlet end component (50) being connected to a urination tube head component (30), the urine inlet end component (50) comprising a urine inlet tube body (51), the urine inlet tube body (51) being threadedly connected to a threaded sleeve (32), a second leak-proof component being provided inside the urine inlet tube body (51), the second leak-proof component matching the first leak-proof component.

2. The urology dilation and drainage device according to claim 1, characterized in that: A rectangular anti-backflow cavity (22) is provided inside the rectangular tube body (21), and the anti-backflow component includes a rectangular frame seat (23) and an inclined plate (27). A liquid outlet (24) is provided in the middle of the rectangular frame seat (23), and a guide plate (25) is hingedly connected to the lower rear of the rectangular frame seat (23). The guide plate (25) is tilted downward, and a stop rod (26) is fixed to the lower cavity of the rectangular anti-backflow cavity (22). The lower part of the lower side surface of the guide plate (25) is in conflict with the stop rod (26). The upper end of the inclined plate (27) is connected to the front side wall of the rectangular anti-backflow cavity (22), and the inclined plate (27) is located below the guide plate (25). The inclination direction of the inclined plate (27) is opposite to the inclination direction of the guide plate (25).

3. The urology dilation and drainage device according to claim 1, characterized in that: The first anti-leakage component comprises a drainage pan seat (33) and a drainage baffle ring (34); the edges of the drainage pan seat (33) and the drainage baffle ring (34) are fixedly connected to the inner wall of the urination tube body (31); the drainage pan seat (33) is located above the drainage baffle ring (34); a plurality of drainage ports (331) are formed on the edge of the drainage pan seat (33); a first spring (35) is connected to the middle of the lower side of the drainage port (331); and the lower end of the first spring (35) is connected to the drainage baffle pan (36).

4. The urology dilation and drainage device according to claim 3, characterized in that: The second anti-leakage component comprises a liquid inlet pan seat (52) and a liquid inlet ring cover (53), the edge of the liquid inlet ring cover (53) is fixedly connected to the inner wall of the top end of the urine inlet tube body (51), the edge of the liquid inlet pan seat (52) is fixedly connected to the inner wall of the urine inlet tube body (51), the liquid inlet pan seat (52) is located below the liquid inlet ring cover (53), a plurality of liquid inlet ports (521) are provided on the edge of the liquid inlet pan seat (52), a support rod (54) is fixed to the middle part of the upper side of the liquid inlet pan seat (52), the top end of the support rod (54) extends into the liquid inlet ring cover (53) and is fixed with a top plate (55), a liquid inlet baffle plate (56) is slidably sleeved on the support rod (54), a second spring (57) is connected between the liquid inlet baffle plate (56) and the liquid inlet pan seat (52), and the second spring (57) is sleeved on the support rod (54).

5. The urology dilation and drainage device according to claim 4, characterized in that: The diameter of the drain baffle plate (36) is smaller than the outer ring diameter of the drain baffle ring (34), and the diameter of the drain baffle plate (36) is larger than the inner ring hole diameter of the drain baffle ring (34); A liquid inlet ring opening (531) is provided in the middle of the liquid inlet ring cover (53); the diameter of the top plate (55) is greater than the diameter of the support rod (54); the diameter of the top plate (55) is smaller than the diameter of the liquid inlet ring opening (531); the diameter of the liquid inlet baffle plate (56) is smaller than the outer ring diameter of the liquid inlet ring cover (53); and the diameter of the liquid inlet baffle plate (56) is greater than the diameter of the liquid inlet ring opening (531).

6. The urology dilation and drainage device according to claim 5, characterized in that: The outer ring diameter of the urination tube body (31) is the same as the diameter of the liquid inlet ring (531); The diameter of the top plate (55) is smaller than the diameter of the inner ring hole of the drainage baffle ring (34).

7. The urology dilation and drainage device according to claim 1, characterized in that: A limiting ring (58) is fixed on the urine inlet tube body (51); a portion of the outer wall of the urine inlet tube body (51) located above the limiting ring (58) is provided with an external thread matching the internal thread of the threaded sleeve (32); and convex strips (321) are fixed at equal intervals on the outer wall of the threaded sleeve (32).

8. The urology dilation and drainage device according to claim 1, characterized in that: A rotation hole communicating with the threaded cavity is provided in the middle of the upper side of the threaded sleeve (32). The threaded sleeve (32) is sleeved on the urinary tube body (31) through the rotation hole. A first convex ring (37) and a second convex ring (38) are provided on the upper and lower sides of the rotation hole respectively. The first convex ring (37) and the second convex ring (38) are both fixedly sleeved on the outer wall of the urinary tube body (31). The diameters of the first convex ring (37) and the second convex ring (38) are both larger than the diameter of the rotation hole. The second convex ring (38) is nested in the threaded sleeve (32).

9. The urology dilation and drainage device according to claim 4, characterized in that: The liquid inlet tray seat (52), the top tray (55) and the support rod (54) are integrally formed.

10. The urology dilation and drainage device according to claim 4, characterized in that: The urination tube body (31) is a hard tube. The lower side of the discharge baffle plate (36) and the upper side of the inlet baffle plate (56) are both fixed with sealing rubber pads. A sliding hole is opened in the middle of the inlet baffle plate (56). The inlet baffle plate (56) is slidably sleeved on the support rod (54) through the sliding hole.

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