Portable ureteral stent pulling-out device

Abstract

The utility model relates to a portable ureteral stent pulling-out device which comprises a ureteral stent and a sleeve, and a hemispherical first magnet is fixedly installed at the tail end of the ureteral stent; the cannula comprises an inner tube and an outer tube, the diameter of the outer tube is the same as that of the urinary catheter, a second magnet attracted with the first magnet is fixedly installed at the end, extending into the outer tube, of the inner tube, and an arc-shaped groove is formed in the side, away from the inner tube, of the second magnet; and the shape and the size of the arc-shaped groove are matched with those of the first magnet. The ureteral stent taking-out device has the advantages that the ureteral stent taking-out method utilizing magnetic attraction and sleeve assistance is easy and convenient to operate, complex skills are not needed, common nurses can also complete the operation, the problem of medical source tension caused by busy professional doctors is greatly reduced, medical resources are saved, and the labor intensity of medical workers is reduced. The medical efficiency is improved, the pain of the patient can be relieved, and the appointment waiting time of the patient is shortened.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a convenient device for removing ureteral stents. Background Technology

[0002] Urologists often place ureteral stents inside the ureter as needed for treatment. These stents are also known as double-J stents, J-shaped stents, DJ stents, or pigtail stents. After a period of time, the ureteral stent needs to be removed through the urethra. Currently, the common practice in hospitals is to bring the patient to the treatment room, where a doctor inserts a cystoscope through the urethra to the bladder. After locating the ureteral stent through the eyepiece, surgical forceps are inserted into the working channel of the cystoscope, and the stent is then clamped and pulled out of the body.

[0003] However, the traditional methods of removing ureteral stents mentioned above usually require the assistance of a cystoscope to remove the stent from the body. Cystoscopy requires a professional doctor to operate, and most cystoscopes are made of metal and are relatively large rigid scopes, which can cause unbearable pain during insertion. Anesthesia is usually required for the patient. The entire stent removal procedure can only be performed in an operating room. Due to the limited medical resources and the increasing demand from patients, patients who need to have ureteral stents removed usually have to wait in line for an appointment. During this process, the stent is a foreign object in the body and can easily irritate the surrounding tissues. The long wait will increase the patient's discomfort and anxiety. Utility Model Content

[0004] The purpose of this invention is to provide a convenient device for removing ureteral stents, thereby solving the aforementioned problems in the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A convenient device for removing a ureteral stent includes a ureteral stent and a cannula. A first magnet in the shape of a hemisphere is fixedly installed at the tail end of the ureteral stent. The cannula includes an inner tube and an outer tube. The diameter of the outer tube is the same as the diameter of the ureter. A second magnet that attracts the first magnet is fixedly installed at one end of the inner tube that extends into the outer tube. An arc-shaped groove is formed on the side of the second magnet away from the inner tube. The shape and size of the arc-shaped groove match the first magnet.

[0007] The beneficial effects of this invention are: this method of ureteral stent removal using magnetic attraction and cannula assistance is simple to operate and requires no complicated skills. It enables ordinary nurses to complete this operation, greatly reducing the problem of medical resource shortage caused by busy professional doctors, thereby saving medical resources, improving medical efficiency, alleviating patient pain, and reducing patient appointment waiting time.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, a first limiting plate is fixedly installed on the surface of the outer tube away from the conical end.

[0010] The beneficial effect of adopting the above-mentioned further solution is that by setting the first limiting plate, the outer tube is completely inserted into the urethra, making it difficult for medical staff to remove the outer tube.

[0011] Furthermore, a second limiting plate is fixedly installed at the end of the inner tube away from the second magnet.

[0012] The beneficial effect of adopting the above-mentioned further solution is that by setting a second limiting plate, the inner tube is prevented from completely entering the outer tube, making it difficult for medical staff to remove the inner tube. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the ureteral stent and cannula structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the ureteral stent structure of this utility model;

[0015] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 This is a schematic diagram showing the positions of the ureteral stent and cannula of this utility model. Figure 1 ;

[0017] Figure 5 This is a schematic diagram showing the positions of the ureteral stent and cannula of this utility model. Figure 2 .

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Ureteral stent; 2. Cannula; 201. Inner tube; 202. Outer tube; 3. First magnet; 4. Second magnet; 401. Arc groove; 5. First limiting plate; 6. Second limiting plate. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] Example 1

[0022] like Figures 1 to 5As shown, a convenient device for removing a ureteral stent includes a ureteral stent 1 and a cannula 2. A hemispherical first magnet 3 is fixedly installed at the tail end of the ureteral stent 1. The cannula 2 includes an inner tube 201 and an outer tube 202. The diameter of the outer tube 202 is the same as the diameter of the ureter. A second magnet 4 that attracts the first magnet 3 is fixedly installed at one end of the inner tube 201 that extends into the outer tube 202. An arc-shaped groove 401 is provided on the side of the second magnet 4 away from the inner tube 201. The shape and size of the arc-shaped groove 401 match the first magnet 3.

[0023] When implanting the ureteral stent 1, ensure that the end of the ureteral stent 1 with the first magnet 3 is positioned in the bladder. When it is necessary to remove the ureteral stent 1, insert the outer tube 202 containing the inner tube 201 into the urethra until the tip of the outer tube 202 is positioned in the bladder. Then, keep the outer tube 202 stationary and extend the inner tube 201 forward relative to the outer tube 202, so that the tip of the inner tube 201 extends beyond the outer tube 202. When the medical staff feels that the inner tube 201 is in contact with the bladder, pull the inner tube 201 back appropriately and ask the patient to... The body is tilted and swayed towards the direction of the ureteral stent 1 to be removed, while the inner tube 201 is inserted again. At this time, the tip of the inner tube 201 gradually approaches the ureteral stent 1, and the first magnet 3 and the second magnet 4 attract each other until they collide. At this point, the medical staff can feel a noticeable vibration, indicating that the second magnet 4 and the first magnet 3 are completely attracted. At this point, the medical staff only needs to pull back the inner tube 201 until the ureteral stent 1 enters the outer tube 202, and then remove the ureteral stent through the outer tube 202. 1. Finally, the outer tube 202 is removed from the urethra. This method of removing the ureteral stent 1 using magnetic attraction and the cannula 2 is simple to operate and requires no complicated skills. It allows ordinary nurses to complete this operation, greatly reducing the problem of medical resource shortage caused by busy professional doctors, thus saving medical resources, improving medical efficiency, alleviating patient pain, and reducing patient appointment waiting time. At the same time, the diameter of the outer tube 202 is the same as the diameter of the ureteral catheter, so the process of implanting and removing the outer tube 202 is consistent with the process of implanting and removing the ureteral catheter. Medical staff can use the mature technology and procedures for implanting and removing the ureteral catheter to implant and remove the outer tube 202. This simplifies the surgical procedure, reduces the operation time and operation steps, thereby improving the overall medical efficiency. In addition, no anesthesia is required for the patient during the normal ureteral catheter implantation and removal process, and no anesthesia is required during the removal of the ureteral stent 1, thus reducing some medical resource expenditure.

[0024] It should be noted that, as Figure 2 and Figure 4As shown, when the ureteral stent 1 is implanted into the ureter, since the stent is usually made of a material with elasticity and memory, such as polyurethane, this material can deform when subjected to external force, but can quickly return to its original shape after the external force is removed; therefore, after the ureteral stent 1 is implanted into the urethra, the two ends can automatically be wrapped around each other, preventing the ureteral stent from slipping out of the ureter and into the kidney or bladder; during the removal of the ureteral stent 1, due to the traction force of the inner tube 201, the two ends of the ureteral stent 1 will be in a straight line, which is conducive to the removal of the ureteral stent 1.

[0025] In practice, both the outer tube 202 and the inner tube 201 are made of silicone. The softness of silicone is particularly important, as it can reduce the irritation and damage to the urethra caused by the outer tube 202 and the inner tube 201; at the same time, the tapered design at one end of the outer tube 202 makes it easier for medical staff to insert the cannula 2 into the patient's urethra.

[0026] Example 2

[0027] like Figure 1 As shown, this embodiment is a further improvement on embodiment 1, as detailed below:

[0028] A first limiting plate 5 is fixedly installed on the surface of the outer tube 202 away from the conical end. By setting the first limiting plate 5, the outer tube 202 is completely inserted into the urethra, making it difficult for medical personnel to remove it. A second limiting plate 6 is fixedly installed on the end of the inner tube 201 away from the second magnet 4. By setting the second limiting plate 6, the inner tube 201 is prevented from completely entering the outer tube 202, making it difficult for medical personnel to remove the inner tube 201.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A convenient device for removing a ureteral stent, characterized in that, The utility model provides a ureteral stent and sleeve, the tail end of the ureteral stent (1) is fixedly installed with the first magnet (3) in the shape of hemisphere, the sleeve (2) includes inner tube (201) and outer tube (202), the diameter of outer tube (202) is same with the diameter of ureter, the one end of inner tube (201) that stretches into outer tube (202) is fixedly installed with the second magnet (4) that is attracted with the first magnet (3), the arc slot (401) is opened in the side of second magnet (4) away from inner tube (201), the shape of arc slot (401) is matched with the first magnet (3) in size.

2. The portable ureteral stent device of claim 1, wherein, The one end of the outer tube (202) is tapered.

3. The portable ureteral stent device of claim 2, wherein, The first limiting plate (5) is fixedly installed on the surface of the one end of the outer tube (202) away from the tapered end.

4. The portable ureteral stent device of claim 1, wherein, The second limiting plate (6) is fixedly installed on the one end of the inner tube (201) away from the second magnet (4).

5. The portable ureteral stent device of claim 1, wherein, The outer tube (202) and the inner tube (201) are made of silica gel.

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