Anti-blocking drainage tube indwelled after urinary calculus operation and preparation method of anti-blocking drainage tube

Abstract

The invention discloses a urinary calculus postoperative indwelling anti-blocking drainage tube and a preparation method thereof, and belongs to the field of drainage tubes. Comprising a binding mechanism, and an indwelling mechanism is arranged on the inner side of the binding mechanism; a drainage mechanism is arranged at the top of the indwelling mechanism; the binding mechanism comprises a protective cover, and a gear ring is integrally formed at the top of the protective cover; the indwelling mechanism comprises a disc, the outer side wall of the disc is rotationally connected with the upper portion of the inner side wall of the protective cover through a rotating shaft, and an indwelling pipe head is inserted into the inner side of the disc. According to the device, a perfect seepage treatment system is formed through multi-structure design, a traditional passive nursing mode depending on frequent replacement of sterile gauze is thoroughly changed, a protective cover in the binding mechanism is matched with a rubber ring at the bottom of the inner side, and a sealing structure tightly attached to the skin of a patient can be formed; the elastic deformation characteristic of the rubber ring is utilized to prevent effusion from seeping outwards from the drainage opening, and the leakage risk caused by seepage is reduced from the source.

Description

Technical Field

[0001] This invention relates to the field of drainage tubes, and more particularly to an anti-blockage drainage tube left in place after urinary tract stone surgery and its preparation method. Background Technology

[0002] The Department of Urology is a hospital department that primarily diagnoses and treats diseases of the "surgical" part of the urinary system. It mainly treats various urinary diseases, including various urinary stones and complex kidney stones, kidney and bladder tumors, benign prostatic hyperplasia and prostatitis, inflammation and tumors of the testis and epididymis, hydrocele, various urinary tract injuries, and congenital malformations of the urinary tract such as hypospadias, cryptorchidism, and hydronephrosis caused by ureteropelvic junction obstruction. When existing drainage tubes are used, fluid tends to seep out from the drainage port during insertion into the body. Clinically, sterile gauze is generally used to treat the seepage around the abdominal drainage tube. The gauze is replaced when it gets wet. This method requires staff to constantly wipe and replace the gauze, which is inconvenient. In addition, existing drainage devices are prone to clogging and need to be improved. Therefore, we propose an anti-clogging drainage tube for postoperative placement of urinary tract stones and its preparation method. Summary of the Invention

[0003] Purpose of the invention: The purpose of this invention is to provide an anti-blockage drainage tube for postoperative placement of urinary tract stones, in order to solve the problems of existing drainage tubes during postoperative placement of urinary tract stones, such as easy leakage of fluid from the drainage port, which requires medical staff to change gauze frequently and is inconvenient to use, and easy blockage of the drainage tube affecting the drainage effect. Through structural optimization, the invention achieves the dual functions of preventing leakage and preventing blockage, thereby improving the convenience and reliability of clinical use.

[0004] Technical solution: A drainage tube for preventing blockage after urinary tract stone surgery, including a binding mechanism, wherein the inner side of the binding mechanism is provided with a placement mechanism; The top of the indwelling device is equipped with a drainage mechanism; The binding mechanism includes a protective cover, the top of which is integrally formed with a toothed ring; The indwelling mechanism includes a disc, the outer wall of which is rotatably connected to the upper inner wall of the protective cover via a pivot, and an indwelling tube head is inserted into the inner side of the disc. The lower surface of the disk is symmetrically fixedly connected with shaft plates, and the two shaft plates are rotatably connected to each other via a rotating shaft with an extrusion roller. An L-shaped shaft piece is fixedly connected to the front right side of the upper surface of the disk, and a round rod is fixedly connected to the right side of the L-shaped shaft piece. An L-shaped abutment is fixedly connected to the upper surface of the disc and behind the L-shaped shaft piece. A snap connector is rotatably connected to the right side of the L-shaped abutment piece via a rotating shaft. A shaft seat is fixedly connected to the right side of the upper surface of the disc, and an elastic telescopic rod is rotatably connected to the left side of the shaft seat via a rotating shaft. The left end of the elastic telescopic rod and the right end of the snap-fit ​​connector abut against a take-up drum. The right end of the central shaft of the elastic telescopic rod extends through to the right side of the bearing seat and is fixedly connected to a gear. The outer side wall of the gear engages with the upper surface of the gear ring.

[0005] Furthermore, both sides of the protective cover are fixedly connected with binding straps.

[0006] Furthermore, a rubber ring is embedded in the bottom inner side of the protective cover.

[0007] Furthermore, a wiping cloth roll is provided on the outer bottom of the extrusion roller, with both ends of the wiping cloth roll extending to the top of the disc and located on the outer wall of the circular rod and the outer wall of the take-up drum.

[0008] Furthermore, a handle is fixedly connected to the left side of the upper surface of the disk.

[0009] Furthermore, the drainage mechanism includes a transfer chamber, the bottom of which is detachably connected to the top of the indwelling tube head by bolts, and a drainage tube is inserted into the top of the transfer chamber.

[0010] Furthermore, the interior of the transfer chamber is rotatably connected to two crushing rollers via a rotating shaft.

[0011] Furthermore, a mounting frame is fixedly connected to the left side of the transfer chamber, and a micro motor is fixedly connected to the inner side of the mounting frame. The left end of the central shaft of the crushing roller extends through to the left side of the transfer chamber and is fixedly connected to a second gear. The right end of the output shaft of the micro motor is fixedly connected to the left side of the second gear located behind the left side of the transfer chamber.

[0012] According to another aspect of the present invention, a method for preparing an anti-blockage drainage tube for postoperative placement after urinary tract stone surgery is provided, comprising the following steps: S1. Select medical-grade silicone / PTFE tubing to ensure biocompatibility and other properties. Test tensile strength (≥10MPa), resistance to body fluid corrosion, etc., reject unqualified products, cut to 20-30cm, and disinfect with medical alcohol for later use. S2. Shaping to make the inner diameter of the tube uniform at 3-5mm, drilling 6-8 side holes with a diameter of 1-1.5mm and a spacing of 2-3cm on the side wall, blunting the insertion end, making a standard interface at the drainage end, and printing the scale and product number for easy positioning and traceability. S3. The drainage end interface is embedded with a one-way anti-backflow component and a sealing test is performed. S4. Sterilize with ethylene oxide (55℃, 60% humidity, 4 hours), sample for bacterial culture to ensure sterility, and re-inspect the patency of the lumen, pressure resistance (0.3MPa without rupture) and biocompatibility to ensure compliance.

[0013] Beneficial effects: The device forms a complete exudate treatment system through multiple structural designs, which completely changes the traditional passive nursing mode that relies on frequent changes of sterile gauze. The protective cover in the binding mechanism, together with the rubber ring at the bottom inside, can form a tight seal with the patient's skin. The elastic deformation properties of the rubber ring prevent the accumulated fluid from seeping out from the drainage port, reducing the risk of leakage from the source. The indwelling device comprises an automatic wiping and rewinding system consisting of a wiping cloth roll, a squeeze roller, and a winding drum. By gripping the handle and rotating the disc, the squeeze roller can promptly wipe away any small amounts of exudate inside the protective cover. Simultaneously, a gear and gear ring drive the winding drum to automatically rewind the used wiping cloth roll, achieving dynamic cleaning of the exudate. This combination of "active sealing + automatic wiping" not only avoids the risk of infection caused by exudate irritating the skin but also significantly reduces the frequency of gauze changes for medical staff, lowers the workload, and improves the convenience of clinical care. To address the issue of existing drainage tubes being easily clogged by stones and debris, a targeted anti-clogging solution has been developed for the pulverizing component in the drainage mechanism. Two pulverizing rollers within the transfer chamber are linked to a micro-motor via a gear set. During drainage, activating the micro-motor drives the pulverizing rollers to rotate in reverse at high speed. When stones or other easily clogging substances are mixed into the drainage fluid, the debris is ground into fine particles by the pulverizing rollers before entering the drainage tube, effectively preventing large particles from getting stuck in the tube and causing drainage obstruction. Furthermore, the transfer chamber and the indwelling tube head are connected by bolts for easy removal. If residual debris needs to be cleaned, simply turn off the motor and remove the bolts for maintenance of the transfer chamber. This simple operation does not affect the stability of the drainage tube. This design forms a closed loop from "interception and pulverization" to "easy cleaning," ensuring continuous unobstructed drainage, guaranteeing the reliability of postoperative drainage treatment, and reducing the risk of secondary treatment due to blockage. The device's structural design fully considers clinical suitability and patient comfort. The straps on both sides of the binding mechanism can be flexibly adjusted to fit the patient's limbs or waist, and are secured with Velcro or buckles, ensuring a stable fit between the protective shield and the skin without excessively restricting the patient's movement. The disc of the indwelling mechanism is rotatably connected to the protective shield via a rotating shaft, and the rotation process is smooth and effortless. Patients can also perform simple wiping operations under medical guidance, improving their autonomy in use. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the binding mechanism of the present invention; Figure 3 This is a top view of the binding mechanism of the present invention; Figure 4 This is a schematic diagram of the indwelling mechanism of the present invention; Figure 5 This is a schematic diagram of the structure of the indwelling mechanism of the present invention after the wiping cloth roll is removed; Figure 6 This is a schematic diagram of the connection structure of the L-shaped abutment, winding drum, elastic telescopic rod and shaft seat of the present invention; Figure 7 This is a schematic diagram of the drainage mechanism of the present invention; Figure 8 This is a top view of the cross-section of the drainage mechanism of the present invention.

[0015] In the diagram: 1. Binding mechanism; 2. Indwelling mechanism; 3. Drainage mechanism; 101. Protective cover; 102. Toothed ring; 103. Binding strap; 104. Rubber ring; 201. Disc; 202. Indwelling tube head; 203. Shaft plate; 204. Squeeze roller; 205. L-shaped shaft plate; 206. Round rod; 207. L-shaped abutment plate; 208. Snap connector; 209. Shaft seat; 210. Elastic telescopic rod; 211. Rewinding drum; 212. Gear one; 213. Wiping cloth roll; 214. Handle; 301. Transfer chamber; 302. Drainage hose; 303. Crushing roller; 304. Mounting frame; 305. Micro motor; 306. Gear two. Detailed Implementation

[0016] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example like Figure 1 , Figure 2 and Figure 3 As shown, a non-blocking drainage tube is provided for postoperative placement of urinary tract stones, including a binding mechanism 1; The binding mechanism 1 includes a protective cover 101, and the top of the protective cover 101 is integrally formed with a toothed ring 102; Both sides of the protective cover 101 are fixedly connected with binding straps 103; A rubber ring 104 is embedded in the bottom inner side of the protective cover 101; Before use, check the integrity of each component of the binding mechanism 1. Align the protective cover 101 with the patient's drainage tube placement site, ensuring the tube opening is centered on the protective cover 101. Ensure the rubber ring 104 fits tightly against the patient's skin, achieving initial sealing through the elastic deformation of the rubber ring 104 to prevent leakage. Then, wrap the binding straps 103 on both sides around the patient's limbs or waist, adjusting the tightness according to the patient's body shape. Secure the binding straps 103 firmly using Velcro or buckles to ensure the protective cover 101 fits stably against the skin without affecting the patient's movement, thus completing the installation and positioning of the binding mechanism 1.

[0018] like Figure 4 , Figure 5 and Figure 6 As shown, a retention mechanism 2 is provided on the inner side of the binding mechanism 1; The indwelling mechanism 2 includes a disc 201, the outer wall of the disc 201 is rotatably connected to the upper inner wall of the protective cover 101 via a pivot, and an indwelling tube head 202 is inserted into the inner side of the disc 201. The lower surface of the disc 201 is symmetrically fixedly connected with shaft plates 203, and the two shaft plates 203 are rotatably connected to each other via a rotating shaft with an extrusion roller 204. An L-shaped shaft piece 205 is fixedly connected to the front right side of the upper surface of the disc 201, and a round rod 206 is fixedly connected to the right side of the L-shaped shaft piece 205. An L-shaped abutment 207 is fixedly connected to the upper surface of the disc 201 and behind the L-shaped shaft piece 205. A snap connector 208 is rotatably connected to the right side of the L-shaped abutment 207 via a rotating shaft. A bearing seat 209 is fixedly connected to the right side of the upper surface of the disc 201. An elastic telescopic rod 210 is rotatably connected to the left side of the bearing seat 209 via a rotating shaft. The left end of the elastic telescopic rod 210 and the right end of the snap connector 208 abut against the winding drum 211. The right end of the central shaft of the elastic telescopic rod 210 extends to the right side of the bearing seat 209 and is fixedly connected to a gear 212. The outer side wall of the gear 212 meshes with the upper surface of the gear ring 102. A wiping cloth roll 213 is provided on the outer bottom of the extrusion roller 204. Both ends of the wiping cloth roll 213 extend to the top of the disc 201 and are located on the outer wall of the circular rod 206 and the outer wall of the take-up drum 211. A handle 214 is fixedly connected to the left side of the upper surface of the disc 201; When installing the indwelling device 2, first insert the indwelling tube head 202 into the patient's body; Next, pull out one end of the wiping cloth roll 213 wound on the round rod 206, so that it passes over the bottom of the extrusion roller 204, and then fix the end of the cloth roll to the take-up drum 211. Holding the handle 214 drives the disc 201 to rotate around the inner shaft of the protective cover 101. During the rotation of the disc 201, the gear 212 rolls along the gear ring 102 and drives the elastic telescopic rod 210 to rotate, thereby driving the take-up drum 211 to take up the wiping cloth roll 213. At the same time, the squeezing roller 204 rotates under the drive of the cloth roll to wipe the surrounding seepage, realizing timely treatment of seepage without the need for frequent replacement of gauze. This method allows for the periodic wiping of seepage, and the wiping cloth roll 213 can be rotated and rolled up simultaneously while wiping.

[0019] like Figure 7 and Figure 8 As shown, a drainage mechanism 3 is provided at the top of the indwelling mechanism 2; The drainage mechanism 3 includes a transfer chamber 301. The bottom of the transfer chamber 301 is detachably connected to the top of the indwelling tube head 202 by bolts. A drainage tube 302 is inserted into the top of the transfer chamber 301. The interior of the transfer chamber 301 is rotatably connected to two crushing rollers 303 via a rotating shaft; A mounting bracket 304 is fixedly connected to the left side of the transfer chamber 301. A micro motor 305 is fixedly connected to the inner side of the mounting bracket 304. The left end of the central shaft of the crushing roller 303 passes through to the left side of the transfer chamber 301 and is fixedly connected to the second gear 306. The right end of the output shaft of the micro motor 305 is fixedly connected to the left side of the second gear 306 located behind the left side of the transfer chamber 301. When installing the drainage mechanism 3, fix the transfer chamber 301 to the top of the indwelling tube head 202 with bolts to ensure good sealing, then insert one end of the drainage hose 302 into the top of the transfer chamber 301 and connect the other end to the drainage bag or drainage device. During drainage, the micro motor 305 on the mounting bracket 304 is activated. The output shaft of the micro motor 305 drives the connected gear 306 to rotate. Through the meshing transmission of the two gears 306, the two crushing rollers 303 inside the transfer chamber 301 rotate in opposite directions. When the drainage fluid contains easily clogging substances such as stone fragments, the fragments enter the transfer chamber 301 with the drainage fluid and are crushed into fine particles by the high-speed rotating crushing rollers 303, preventing them from clogging the drainage hose 302. The crushed fragments are then discharged with the drainage fluid through the drainage hose 302. If it is necessary to clean the transfer chamber 301, after turning off the micro motor 305, the bolts connecting the transfer chamber 301 and the indwelling tube head 202 can be removed for cleaning and maintenance.

[0020] According to another aspect of the present invention, a non-blocking drainage tube for postoperative placement after urinary tract stone surgery and a method for preparing the same are provided, comprising the following steps: S1. Select medical-grade silicone / PTFE tubing to ensure biocompatibility and other properties. Test tensile strength (≥10MPa), resistance to body fluid corrosion, etc., reject unqualified products, cut to 20-30cm, and disinfect with medical alcohol for later use. S2. Shaping to make the inner diameter of the tube uniform at 3-5mm, drilling 6-8 side holes with a diameter of 1-1.5mm and a spacing of 2-3cm on the side wall, blunting the insertion end, making a standard interface at the drainage end, and printing the scale and product number for easy positioning and traceability. S3. The drainage end interface is embedded with a one-way anti-backflow component and a sealing test is performed. S4. Sterilize with ethylene oxide (55℃, 60% humidity, 4 hours), sample for bacterial culture to ensure sterility, and re-inspect the patency of the lumen, pressure resistance (0.3MPa without rupture) and biocompatibility to ensure compliance.

[0021] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A non-clogging drainage tube for postoperative indwelling of urinary calculi, comprising a binding mechanism (1), characterized in that: The inner side of the binding mechanism (1) is provided with a retention mechanism (2); The top of the retention mechanism (2) is provided with a drainage mechanism (3); The binding mechanism (1) comprises a protective cover (101), and the top of the protective cover (101) is integrally formed with a tooth ring (102); The outer side wall of the disc (201) is rotatably connected to the upper inner side wall of the protective cover (101) through a rotating shaft, and the inner side of the disc (201) is inserted with a retention pipe head (202); The lower surface of the disc (201) is fixedly connected with two shaft plates (203) in a symmetrical manner, and the two shaft plates (203) are rotatably connected with an extrusion roller (204) through a rotating shaft. The upper surface of the disc (201) is fixedly connected with an L-shaped shaft piece (205) at the right front side, and the right side of the L-shaped shaft piece (205) is fixedly connected with a circular rod (206); The upper surface of the disc (201) is fixedly connected with an L-shaped resisting piece (207) behind the L-shaped shaft piece (205), and the right side of the L-shaped resisting piece (207) is rotatably connected with a clamping joint (208) through a rotating shaft; The right end of the central shaft of the elastic telescopic rod (210) penetrates to the right side of the shaft seat (209), and is fixedly connected with a gear one (212), and the outer side wall of the gear one (212) is meshedly connected with the upper surface of the tooth ring (102). Both sides of the protective cover (101) are fixedly connected with binding belts (103).

2. The anti-clogging urinary stone postoperative indwelling drainage tube according to claim 1, characterized in that: The inner bottom of the protective cover (101) is embedded with a rubber ring (104).

3. The anti-clogging urinary stone postoperative indwelling drainage tube according to claim 1, characterized in that: The outer bottom of the extrusion roller (204) is provided with a wiping cloth roll (213), and both ends of the wiping cloth roll (213) penetrate to the top of the disc (201) and are located outside the circular rod (206) and the outer side wall of the winding drum (211).

4. The anti-clogging urinary stone postoperative indwelling drainage tube according to claim 1, characterized in that: The upper surface of the disc (201) is fixedly connected with a handle (214) on the left side.

5. The anti-clogging urinary tract stone postoperative indwelling drainage tube according to claim 1, characterized in that: The drainage mechanism (3) comprises a transfer cavity (301), and the bottom of the transfer cavity (301) is detachably connected with the top of the retention pipe head (202) through bolts, and the top of the transfer cavity (301) is inserted with a drainage hose (302).

6. The anti-clogging urinary tract stone postoperative indwelling drainage tube according to claim 1, characterized in that: The inside of the transfer cavity (301) is rotatably connected with two crushing rollers (303) through rotating shafts.

7. The anti-clogging urinary stone postoperative indwelling drainage tube according to claim 6, characterized in that: ​ 8. The anti-clogging urinary tract stone postoperative indwelling drainage tube according to claim 7, characterized in that: The left side of the transfer cavity (301) is fixedly connected with a mounting rack (304), the inner side of the mounting rack (304) is fixedly connected with a micro motor (305), the central shaft left end of the crushing roller (303) penetrates to the left side of the transfer cavity (301) and is fixedly connected with a gear two (306), and the output shaft right end of the micro motor (305) is fixedly connected with the left side of the gear two (306) located at the left side back of the transfer cavity (301).

9. The method for preparing the anti-clogging drainage tube for postoperative indwelling of urinary calculi, comprising the anti-clogging drainage tube for postoperative indwelling of urinary calculi according to any one of claims 1 to 8, characterized in that, The method comprises the following steps: S1, select medical silica gel / polytetrafluoroethylene pipe material, ensure biocompatibility and other properties, detect tensile strength (≥10MPa), body fluid corrosion resistance and the like, eliminate unqualified products, cut to 20-30cm, and sterilize with medical alcohol for standby; S2, shape the tube cavity inner diameter to be uniform at 3-5mm, drill 6-8 side holes with a diameter of 1-1.5mm and an interval of 2-3cm on the side wall, blunt the insertion end, make the drainage end a standard interface, and print a scale and product number for positioning and tracing; S3, embed a one-way anti-reflux component in the drainage end interface and conduct sealing test; S4, ethylene oxide sterilization (55℃, 60% humidity, 4 hours), sample bacterial culture, ensure sterility, recheck tube cavity patency, pressure resistance (0.3MPa without rupture) and biocompatibility, and ensure compliance.

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