Urethral catheter for indwelling under guide of zebra guide wire after urethral dilatation failure

Abstract

The utility model discloses a catheter for indwelling under the guidance of a zebra guide wire after urethral dilatation failure, which comprises a catheter body, a urine inlet is arranged at the head of the catheter body, a urine outlet is arranged at the tail end of the catheter body, and the urine inlet is communicated with the urine outlet through a channel in the catheter body. A water bag is arranged at the position, located at the near end of the urine inlet, of the head of the urinary catheter body and communicated with a water bag water injection opening through a water bag channel, an opening allowing the zebra guide wire sheath to penetrate through is formed in the center of the head end of the urinary catheter body, the zebra guide wire sheath is arranged in the channel of the urinary catheter body in a drawable mode, and the zebra guide wire sheath is of a hollow structure. And a zebra guide wire is arranged in the zebra guide wire sheath. The urethral catheter is used for indwelling catheterization when a urethral probe of a patient with severe urethral stenosis cannot be inserted, namely urethral dilatation fails. According to the utility model, the trauma to a patient is small, and the body surface has no knife edge; safety is realized; the pain is small.

Description

Technical Field

[0001] The utility model relates to a urinary catheter for indwelling under the guidance of a zebra guide wire after urethral dilation failure, belonging to the technical field of medical products. Background Art

[0002] Patients with benign prostatic hyperplasia and urinary retention, as well as patients who need major surgeries, usually need to indwell a urinary catheter. There are two physiological curvatures in the male urethra, and the urethra is long. If the prostate is severely hyperplastic and the urethra is extremely narrow, sometimes the urethral sound cannot be inserted, that is, urethral dilation fails. At this time, only a supra-pubic cystostomy with great trauma can be performed, bringing great pain to the patient.

[0003] The front end of the mirror of a cystoscope / ureteroscope has a water outlet. With the assistance of water pressure, even in a severely narrowed urethra, it can safely and smoothly enter the bladder under direct vision. Then, a zebra guide wire is placed through the cystoscope / ureteroscope, and the zebra guide wire can guide the urinary catheter to smoothly enter the bladder along the correct direction. However, the existing urinary catheters mainly consist of a urinary catheter body, a water sac, and a water sac injection port. The tip of the urinary catheter is closed and cannot be indwelled through the guidance of a zebra guide wire. Therefore, there is an urgent need to design a urinary catheter with an open tip that can be indwelled through the guidance of a zebra guide wire to solve the above problems. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: how to indwell a urinary catheter when the urethral sound cannot be inserted.

[0005] To solve the above technical problem, the technical solution of the utility model is to provide a urinary catheter for indwelling under the guidance of a zebra guide wire after urethral dilation failure, including a urinary catheter body. The head of the urinary catheter body is provided with a urine inlet, and the tail end of the urinary catheter body is a urine outlet. The urine inlet and the urine outlet are connected through a channel inside the urinary catheter body. A water sac is provided at the proximal end of the head of the urinary catheter body near the urine inlet. The water sac is connected to a water sac injection port through a water sac channel. The feature is that an opening through which a zebra guide wire sheath can pass is provided at the exact center of the end of the head of the urinary catheter body. The zebra guide wire sheath is slidably arranged inside the channel of the urinary catheter body. The zebra guide wire sheath is a hollow structure, and a zebra guide wire is arranged inside the zebra guide wire sheath.

[0006] Preferably, the urine inlet is provided on the side of the head of the urinary catheter body near the end.

[0007] Preferably, the urine inlet is located between the opening at the head end of the urinary catheter body and the water sac.

[0008] Preferably, the water sac is hermetically arranged on the outer wall of the catheter body and wound around the catheter body for one circle. One end port of the water sac channel is arranged on the outer wall of the catheter body inside the water sac, and the other end port of the water sac channel is hermetically connected to the water sac injection port.

[0009] The utility model provides a catheter for indwelling under the guidance of a zebra guide wire after urethral dilation failure, which is used for indwelling catheterization when a urethral sound cannot be inserted in patients with severe urethral stricture, that is, after urethral dilation failure. When a urethral sound cannot be inserted in patients with severe urethral stricture, that is, after urethral dilation failure, indwelling catheterization is carried out with the catheter of the utility model under the guidance of a zebra guide wire, which can avoid traumatic cystostomy. Through the utility model, the trauma to patients is small, there is no incision on the body surface; it is safe; the pain is small. Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of a catheter for indwelling under the guidance of a zebra guide wire after urethral dilation failure;

[0011] Figure 2 It is a schematic diagram of the split zebra guide wire sheath and zebra guide wire. Detailed Embodiment

[0012] For the utility model to be more obvious and easy to understand, the preferred embodiments are described in detail below in conjunction with the drawings.

[0013] The utility model provides a catheter for indwelling under the guidance of a zebra guide wire after urethral dilation failure, as Figure 1 , Figure 2 shown. It includes a catheter body 4, and the catheter body 4 is a channel for draining urine to the outside of the body. An opening is provided at the exact center of the head end of the catheter body 4, through which the zebra guide wire sheath 3 can pass and is slidably arranged in the channel of the catheter body 4. The zebra guide wire sheath 3 is of a hollow structure with an inner diameter of 1.5 mm. A zebra guide wire 5 is arranged inside the zebra guide wire sheath 3. The zebra guide wire sheath 3 can mediate the zebra guide wire 5 to enter the catheter body 4. A urine inlet 6 is provided on the side of the head of the catheter body 4 near the end, and the urine inlet 6 communicates with the channel of the catheter body 4. The tail end of the catheter body 4 is a urine outlet. A water sac 1 for fixing the catheter in the patient's body is also provided at the position of the head of the catheter body 4 near the end. The water sac 1 is located on the proximal side of the urine inlet 6 (that is, the urine inlet 6 is located between the head end opening of the catheter body 4 and the water sac 1). The water sac 1 is connected to the water sac injection port 2 through a water sac channel 7 and is not connected to the channel of the catheter body 4. The water sac 1 is hermetically arranged on the outer wall of the catheter body 4 and wound around the catheter body 4 for one circle. One end port of the water sac channel 7 is arranged on the outer wall of the catheter body 4 inside the water sac 1, and the other end port of the water sac channel 7 is hermetically connected to the water sac injection port 2. By injecting water into the water sac injection port 2, the water sac 1 is filled.

[0014] The usage process of the present utility model is as follows:

[0015] First, place the zebra guide wire 5 under direct vision of a cystoscope / ureteroscope; second, send the end of the zebra guide wire 5 outside the patient's body into the catheter body 4 along the zebra guide wire sheath 3; third, remove the zebra guide wire sheath 3; fourth, insert the catheter body 4 into the bladder along the zebra guide wire 5; fifth, after seeing urine flowing out, inflate the safety water bag 1 for fixation; sixth, withdraw the zebra guide wire 5 from the tail end of the catheter body 4 and connect the urine collection bag.

Claims

1. A urinary catheter for indwelling under the guidance of a zebra guidewire after urethral dilatation failure, comprising a urinary catheter body (4), a urine inlet (6) being provided at the head of the urinary catheter body (4), a urine outlet being provided at the tail end of the urinary catheter body (4), the urine inlet (6) and the urine outlet being communicated with each other through a channel in the urinary catheter body (4), a water bag (1) being provided at the proximal end of the urine inlet (6) of the head of the urinary catheter body (4), the water bag (1) being connected to a water bag water injection port (2) through a water bag channel (7), characterized in that: An opening is provided at the center of the head end of the catheter body (4) for the zebra guidewire sheath (3) to pass through. The zebra guidewire sheath (3) is removably arranged in the channel of the catheter body (4). The zebra guidewire sheath (3) is a hollow structure, and a zebra guidewire (5) is arranged in the zebra guidewire sheath (3).

2. A urinary catheter for indwelling under the guidance of a zebra wire after urethral dilation failure as claimed in claim 1, characterized in that: A urine inlet (6) is provided on the side of the head of the catheter body (4) close to the end.

3. A urinary catheter for indwelling under the guidance of a zebra wire after urethral dilation failure as claimed in claim 1, characterized in that: The urine inlet (6) is located between the opening at the head end of the urinary catheter body (4) and the water bag (1).

4. A urinary catheter for indwelling under the guidance of a zebra wire after urethral dilation failure as claimed in claim 1, characterized in that: The water bag (1) is sealed on the outer wall of the catheter body (4) and is arranged around the catheter body (4). One end of a water bag channel (7) is provided inside the water bag (1) and on the outer wall of the catheter body (4). The other end of the water bag channel (7) is sealed and connected to the water bag water injection port (2).

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