Urethral stent tube

Abstract

The utility model discloses a urethra stent tube, particularly relates to urethra stent tube technical field, including inner stent tube, outer stent tube no. 1 and outer stent tube no. 2, the both ends of inner stent tube take the shape of circle-shaped hook, the outer wall of both sides of inner stent tube is processed with a plurality of side hole no. 1, the outer wall of both sides of outer stent tube no. 1 is processed with a plurality of side hole no. A detachable waterproof film is arranged in the first outer support pipe, the bottom of the first outer support pipe is fixedly connected with an adapter, and the top of the second outer support pipe is fixedly connected with an adapter. By combining the inner stent tube, the first outer stent tube and the second outer stent tube, the inner stent tube plays a role in urine drainage and avoids dysuria or urinary retention caused by surgery and anesthesia in the early stage of a post-operation, the first outer stent tube can support the urethra and prevent urethra wound collapse and adhesion, and the first outer stent tube has no stimulation effect on the posterior urethra and the bladder, so that the urethra can be prevented from being damaged. Meanwhile, exudate at the wound can be discharged conveniently, and the second outer support tube can be connected with a drainage bag for use.

Description

TECHNICAL FIELD

[0001] The utility model relates to urethral stent pipe technical field more specifically, it is a kind of urethral stent pipe. BACKGROUND

[0002] Urethral injury, stenosis, often complex diversification, even there is false way formation. Urethral injury, penis and urethral reconstruction usually need to place stent tube to drain urine and support wound, avoid wound collapse, adhesion and play the role of hemostasis and drainage of urine. The stent tube currently used after penis and urethral reconstruction includes: balloon catheter, gastric tube and urethral short stent tube, but each has its shortcomings: (1) balloon catheter: although urine tube can effectively drain urine and prevent urine tube from sliding out by balloon, but urine tube tip and balloon can stimulate bladder and detrusor contraction and cause bladder spasm, lead to urine from around in the form of high pressure, not conducive to the healing of urethral anastomosis, at the same time bring great pain to patients, also bring great anxiety to caregivers. At the same time, urine tube needs to penetrate the whole urethra, can stimulate posterior urethra, glans penis, prostate, urethral gland to produce secretion, secretion cannot be promptly removed, easy to cause urinary tract infection after gathering and increase the risk of urinary fistula. Because of the long time of stent tube after urethral reconstruction, long-term indwelling catheter can cause stent tube related urinary tract infection, not conducive to the healing of anastomosis. In addition, urine tube needs to be connected with drainage bag, carrying urine tube and drainage bag will hinder postoperative patients' out-of-bed activities and affect postoperative rehabilitation. Although balloon catheter is made of silica gel, its double lumen structure makes it harder than ordinary silica gel tube material, which reduces the comfort of patients, and easy to cause postoperative glans penis crack. The cross section of the balloon catheter at the head end will expand after use, becoming not smooth, and the balloon is easy to damage the urethra when removing the catheter.

[0003] (2) gastric tube: although gastric tube has no balloon, avoid the stimulation of balloon to bladder and damage to urethra during removal process, but the stimulation of tip to bladder still exists, the essence of stent tube penetrating the whole urethra drainage does not change, still stimulate detrusor and cause bladder spasm, stimulate urethra, glans penis, prostate, urethral gland to produce secretion, and the shortcomings of external drainage bag affecting postoperative activities.

[0004] (3) urethral short stent tube: urethral short tube has no balloon structure, the stent end needs to be placed in the posterior urethra, which avoids stimulating the bladder, but cannot be accurately positioned, whether the stent tube is placed correctly, such as placing too deep, which will stimulate the bladder and detrusor and cause bladder spasm, such as placing too shallow, which is easy to cause postoperative urine drainage difficulty and urinary retention, and wound exudate cannot be flushed out in time.

[0005] (4) urethral short stent tube with side hole: early urine can seep into the wound through the side hole and cause discomfort.

[0006] For example, the prior art disclosed in CN210873651U, a urethral stent tube used after hypospadias surgery, only needs to directly connect the glans penis of the child with a sleeve, and the urethral stent tube can pass through the whole length of the urethra of the child under anesthesia during hypospadias surgery, one end is placed in the bladder, the other end is connected to a urine bag and remains, and after the wound is recovered after surgery, the connection point is cut off, the inner tube is pulled out, and only the sleeve remains in the urethra of the child, without the need to disconnect and reconnect the urethral stent tube and the glans penis, reducing the pain of the child.

[0007] Currently, the existing drainage urethral stent still has the following problems when in use: it needs to penetrate the entire urethra, and the balloon at the proximal end of the stent will stimulate the bladder and the detrusor muscle, causing bladder spasm, resulting in urine flowing out from around the stent tube in the form of high pressure, affecting wound healing; stimulating the posterior urethra and its glands, causing an increase in their secretions, causing urethral infection; the distal end of the stent tube will cause secondary damage to the urethra when the stent tube is removed; simply placing it in the posterior urethra for drainage makes it difficult to accurately position it, and improper placement can cause postoperative dysuria; the wound exudate cannot be flushed out in time with the side-hole urethral stent; and with the side-hole urethral stent, urine can seep into the wound through the side hole when it flows out in the early stage, causing discomfort, based on which the utility model provides a urethral stent tube. Utility model content

[0008] In order to overcome the above-mentioned defects of the prior art, the utility model provides a urethral stent tube, which is combined by an inner stent tube, an outer stent tube one and an outer stent tube two, the inner stent tube plays a role in draining urine, avoiding postoperative dysuria or urinary retention caused by surgery and anesthesia in the early stage, the outer stent tube one can support the urethra, prevent the urethral wound from collapsing and adhesion, and has no stimulating effect on the posterior urethra and the bladder, and a detachable waterproof film is arranged inside the outer stent tube one, the waterproof film in the early stage can prevent urine from seeping out and stimulating the wound, and after the waterproof film is removed in the later stage, the exudate at the wound can be easily discharged, and the outer stent tube two can be connected to a drainage bag for use, so as to solve the problems in the above background art.

[0009] In order to achieve the above-mentioned purposes, the utility model provides the following technical scheme: a urethral stent tube, comprising an inner stent tube, an outer stent tube one and an outer stent tube two, both ends of the inner stent tube are in the form of a circle-shaped hook, a plurality of side holes one are formed on the outer walls of both sides of the inner stent tube, a plurality of side holes two are formed on the outer walls of both sides of the outer stent tube one, a detachable waterproof film is arranged inside the outer stent tube one, a conversion joint is fixedly connected to the bottom of the outer stent tube one, an adapter is fixedly connected to the top of the outer stent tube two, the adapter is installed inside the conversion joint, and the adapter is located at the bottom of the waterproof film, and the inner stent tube and the adapter are connected through a connecting assembly, so as to further improve the stability of the inner stent tube when in use.

[0010] In a preferred embodiment, the connecting assembly comprises a water-repellent anti-skid line and an anti-skid hook, the water-repellent anti-skid line is fixed at one end of the inner support tube, the anti-skid hook is fixed on the inner wall of the adapter, and the water-repellent anti-skid line is connected with the anti-skid hook, so that the water-repellent anti-skid line can further prevent the inner support tube from sliding.

[0011] In a preferred embodiment, a plurality of side holes one are arranged in a linear array on the inner support tube, and a plurality of side holes two are arranged in a linear array on the outer support tube one, so that the side holes one and the side holes two can facilitate the rapid discharge of urine and exudates at the wound.

[0012] In a preferred embodiment, the inner wall surface of the adapter and the outer wall surface of the adapter are both threaded, and the adapter is threadedly connected with the adapter, so that the outer support tube one and the outer support tube two can be conveniently installed and removed.

[0013] In a preferred embodiment, the inner support tube is made of polyurethane, which has less irritation to human tissues, good biocompatibility, and is soft and comfortable, and will not damage the urethra of the patient, and the outer support tube one and the outer support tube two are both made of silica gel, so that the outer support tube one and the outer support tube two both have good flexibility, so as to avoid damaging the urethra of the patient.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. The inner support tube, the outer support tube one and the outer support tube two are combined, the inner support tube plays a role in draining urine, avoids postoperative early difficulty in urination or urinary retention caused by surgery and anesthesia, the outer support tube one can support the urethra, prevent the urethral wound from collapsing and adhesion, has no stimulating effect on the posterior urethra and bladder, can also facilitate the discharge of exudates at the wound, and the outer support tube two can be connected with a drainage bag.

[0016] 2. The two ends of the inner support tube are in the form of a circular hook, which can prevent the inner support tube from sliding inward and outward, and the water-repellent anti-skid line is fixed on the anti-skid hook, which further prevents the inner support tube from sliding inward, and the design of the side holes one and the side holes two facilitates the discharge of wound exudates.

[0017] 3. The outer support tube one is designed with a detachable waterproof film, which can effectively prevent the irritation of urine to the wound in the early postoperative period, and the film is removed when the inner support tube is removed after the acute stage of wound trauma, so as to facilitate the discharge of exudates at the wound. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a whole structure front view of the utility model;

[0020] Figure 3 It is the overall structure of the utility model;

[0021] Figure 4 It is the overall structure of the utility model;

[0022] Figure 5 It is Figure 4 The enlarged view of A part in

[0023] The figure mark is: 1, inner support pipe; 2, outer support pipe one; 3, outer support pipe two; 4, side hole one; 5, side hole two; 6, waterproof film; 7, conversion joint; 8, adapter; 9, connecting assembly;

[0024] 901, water-repellent anti-skid line; 902, anti-skid hook. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] With reference to the drawings in the description Figures 1-5 The utility model provides a urethral support pipe, including inner support pipe 1, outer support pipe one 2 and outer support pipe two 3, the both ends of inner support pipe 1 are circle hook type, the both sides outer wall of inner support pipe 1 are all processed with multiple side hole one 4, the both sides outer wall of outer support pipe one 2 are all processed with multiple side hole two 5, multiple side hole one 4 are linear array distribution on inner support pipe 1, multiple side hole two 5 are linear array distribution on outer support pipe one 2, specifically, the diameter of multiple side hole one 4 and multiple side hole two 5 is 2mm, and the spacing between adjacent two side hole one 4 and multiple side hole two 5 is 2mm;

[0027] The inside of outer support pipe one 2 is equipped with detachable waterproof film 6, the bottom of outer support pipe one 2 is fixedly connected with conversion joint 7, the top of outer support pipe two 3 is fixedly connected with adapter 8, adapter 8 is installed in the inside of conversion joint 7, and adapter 8 is located at the bottom of waterproof film 6, the inner wall surface of conversion joint 7 and the outer wall surface of adapter 8 are all processed with screw threads, adapter 8 is connected with conversion joint 7 by screw thread, and it is convenient to install and detach outer support pipe one 2 and outer support pipe two 3;

[0028] The inner support tube 1 is connected with the adapter 8 through a connecting assembly 9, specifically, the connecting assembly 9 comprises a water-repellent anti-skid line 901 and an anti-skid hook 902, the water-repellent anti-skid line 901 is fixed at one end of the inner support tube 1, the anti-skid hook 902 is fixed on the inner wall of the adapter 8, and the water-repellent anti-skid line 901 is connected with the anti-skid hook 902, and the water-repellent anti-skid line 901 can further prevent the inner support tube 1 from sliding;

[0029] The inner support tube 1 is made of polyurethane, the polyurethane material has less irritation to human tissues, has good biocompatibility, is soft and comfortable, and will not damage the urethra of a patient, and the outer support tube one 2 and the outer support tube two 3 are both made of silica gel, so that the outer support tube one 2 and the outer support tube two 3 both have good flexibility, so as to avoid damaging the urethra of a patient.

[0030] In use, one end of the inner support tube 1 is placed in the bladder, the other end is placed in the outer support tube one 2, and the water-repellent anti-skid line 901 is fixed on the anti-skid hook 902 to prevent the inner support tube 1 from sliding inward, the outer support tube one 2 is placed in the newly anastomosed urethra, and the length is preferably 2 cm longer than the length of the newly anastomosed urethra, then a drainage bag is connected to the tail end of the outer support tube two 3, so as to collect urine, the outer support tube two 3 is removed first 3-5 days after the operation, then the inner support tube 1 is removed, then the waterproof film 6 in the outer support tube one 2 is torn, and finally the outer support tube one 2 is cut short 1 cm away from the urethral orifice, so that the patient can urinate through the outer support tube one 2. In the embodiment, the inner support tube 1, the outer support tube one 2 and the outer support tube two 3 are combined, the inner support tube 1 plays a role in draining urine, avoids difficulty in urination or urine retention caused by surgery and anesthesia in the early postoperative period, and the two ends of the inner support tube 1 are in the form of a circular hook, which can prevent the inner support tube 1 from sliding inward and outward, the outer support tube one 2 and the outer support tube two 3 can be cut according to the length of the urethral reconstruction, can play a supporting role in the newly formed urethra, prevent wound collapse and adhesion, have no stimulating effect on the posterior urethra and bladder, and can also drain exudates from the wound.

[0031] Finally, the above-described preferred embodiments of the present application are only used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A urethral stent comprising: Including inner support pipe (1), outer support pipe one (2) and outer support pipe two (3), the both ends of the inner support pipe (1) are circle hook type, the both sides of the outer wall of the inner support pipe (1) are processed with multiple side holes one (4); The both sides of the outer wall of the outer support pipe one (2) are processed with multiple side holes two (5), the inner part of the outer support pipe one (2) is equipped with detachable waterproof film (6), the bottom of the outer support pipe one (2) is fixedly connected with conversion joint (7), the top of the outer support pipe two (3) is fixedly connected with adapter (8), the adapter (8) is installed in the inner part of the conversion joint (7), and the adapter (8) is located at the bottom of the waterproof film (6), and the inner support pipe (1) and the adapter (8) are connected through connecting assembly (9).

2. A urethral stent according to claim 1, wherein: The connecting assembly (9) includes water-repellent non-slip line (901) and non-slip hook (902), the water-repellent non-slip line (901) is fixed at one end of the inner support pipe (1), the non-slip hook (902) is fixed on the inner wall of the adapter (8), and the water-repellent non-slip line (901) is connected with the non-slip hook (902).

3. The urethral stent of claim 1, wherein: Multiple side holes one (4) are linearly arranged on the inner support pipe (1), and multiple side holes two (5) are linearly arranged on the outer support pipe one (2).

4. The urethral stent of claim 1, wherein: The inner wall surface of the conversion joint (7) and the outer wall surface of the adapter (8) are processed with threads, and the adapter (8) is threadedly connected with the conversion joint (7).

5. The urethral stent of claim 1, wherein: The inner support pipe (1) is made of polyurethane, and the outer support pipe one (2) and the outer support pipe two (3) are made of silica gel.

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