Operation catheter of ureteroscope

Abstract

The utility model discloses a ureteroscope operation catheter, and relates to the technical field of medical instruments, the ureteroscope operation catheter comprises a catheter main body, and further comprises a catheter front end, the catheter front end is arranged at one end of the catheter main body, one end of the catheter front end far away from the catheter main body is provided with an installation groove, and a ball is movably installed in the installation groove; the air bag is arranged on the periphery of the catheter body, and a fixed gap is formed between the air bag and the catheter body. The neck bush slides on the catheter body, the position of the air bag on the catheter body can be adjusted, the wrinkled rings on the air bag expand in the direction of the catheter body by inflating the interior of the air bag, then the wrinkled rings are attached to the outer wall of the catheter body, and the air bag is fixed; the outer wall of the catheter body is attached to the inner wall of the urethra, so that the catheter body is fixed, and the stability of the catheter body inserted into the urethra is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a surgical catheter for a ureteroscope. Background Art

[0002] In ureteroscopic surgery, it is necessary to insert a zebra guidewire into the ureteral orifice through the ureteroscope. After the guidewire is inserted, the ureteroscope is then inserted along the guidewire. This method makes it easy for the ureteroscope to enter and pass through tortuous parts, and it is easy to find the ureteral cavity and reduce damage. For example, Chinese patent publication number CN208511682U discloses a ureteral catheter that can be used for ureteroscopic surgery. The device can control the extension angle and direction of the guidewire by setting an arc-shaped guidewire lead-out cavity at the insertion end. When facing an abnormal ureteral orifice of a patient, the guidewire can be smoothly and conveniently pushed into the ureter, which not only improves the work efficiency of medical staff, but also reduces the pain of patients.

[0003] However, after a traditional catheter is inserted into the urethra, it is easy for the catheter to shift due to the patient's lack of cooperation or accidental contact, and even cause the catheter to come out of the urethra, thereby affecting the accuracy of ureteroscopy after insertion. Utility Model Content

[0004] The utility model provides a ureteroscope surgical catheter to solve the problems raised in the background technology.

[0005] The utility model provides the following technical solutions: a surgical catheter for a ureteroscope, comprising a catheter body, and also comprising: a catheter front end, the catheter front end is arranged at one end of the catheter body, and a mounting groove is opened in the catheter front end away from the end of the catheter body, and a ball is movably installed in the mounting groove; an airbag, the airbag is arranged on the outer periphery of the catheter body, and a fixed gap is arranged between the airbag and the catheter body, and pleated rings are evenly arranged on the inner side of the airbag at one end of the fixed gap; an inner sleeve, the inner sleeve is arranged inside the fixed gap and fixedly connected to the airbag, the inner sleeve slides along the axial direction of the catheter body, and the inner sleeve is inserted into one end of the fixed gap and extends to the pleated ring.

[0006] As a preferred technical solution of the utility model, a guide wire guide hole is opened on the outside of the catheter body near the front end of the catheter, and an inner lining ring is provided on the inner wall of the guide wire guide hole.

[0007] As a preferred technical solution of the utility model, urinary catheter holes are evenly opened on the outside of the catheter body near the guide wire guide hole, and the inner diameter of the urinary catheter hole is 1 / 2 of the inner diameter of the guide wire guide hole.

[0008] As a preferred technical solution of the utility model, a traction pad is fixed at one end of the front end of the catheter in the catheter body, and the upper surface of the traction pad is provided with an inclined surface adapted to the guide wire guide hole.

[0009] As a preferred technical solution of the utility model, one end of the inner bushing extends to the outside of the fixed gap and is installed with a hard plate, and the hard plate and the inner bushing are glued together.

[0010] As a preferred technical solution of the utility model, an air tube is installed at one end of the airbag, a control valve is provided on the air tube, and a connecting sleeve is provided at the other end of the air tube.

[0011] Compared with the prior art, the utility model provides a ureteroscope surgical catheter, which has the following beneficial effects:

[0012] 1. The surgical catheter of the ureteroscope can adjust the position of the airbag on the catheter body by sliding the inner lining on the catheter body. By inflating the airbag, the folded ring on the airbag expands toward the catheter body, and then the folded ring fits with the outer wall of the catheter body to fix the airbag. After the airbag is inflated, its outer wall fits with the inner wall of the urethra, thereby fixing the catheter body and ensuring the stability of the catheter body after being inserted into the urethra, avoiding the catheter body from being detached due to accidental contact.

[0013] 2. The surgical catheter of the ureteroscope can make the balls roll on the inner wall of the urethra through the cooperation between the mounting groove and the balls, thereby facilitating the direction change when the catheter body is inserted, so as to reduce the resistance when the catheter body is inserted. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the airbag in the utility model;

[0016] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 5 It is a schematic diagram of the structure of the airbag in the utility model.

[0019] In the figure: 1. Catheter body; 2. Front end of catheter; 3. Ball bearing; 4. Traction pad; 5. Guide wire guide hole; 6. Urinary catheter hole; 7. Hard plate; 8. Air bag; 9. Trachea; 10. Mounting groove; 11. Inner lining ring; 12. Fixed gap; 13. Pleated ring; 14. Inner lining sleeve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 3 The utility model discloses a surgical catheter for ureteroscope, comprising a catheter body 1, and also comprising: a catheter front end 2, which is arranged at one end of the catheter body 1. Through the arrangement of the catheter front end 2, the front end of the catheter body 1 has a certain guiding property, so as to facilitate the insertion of the catheter body 1, and a mounting groove 10 is opened in the catheter front end 2 at one end away from the catheter body 1, and a ball 3 is movably installed in the mounting groove 10. Under the cooperation between the ball 3 and the mounting groove 10, the ball 3 can roll on the inner wall of the urethra, so as to facilitate the change of direction of the catheter body 1 when it is inserted, so as to reduce the resistance of the catheter body 1 when it is inserted;

[0022] like Figure 3-Figure 5 As shown, the surgical catheter of the ureteroscope further includes an airbag 8, which is arranged on the outer periphery of the catheter body 1, and a fixed gap 12 is arranged between the airbag 8 and the catheter body 1, and a fold ring 13 is evenly arranged on the inner side of the airbag 8 at one end of the fixed gap 12, and the fold ring 13 on the airbag 8 is expanded toward the catheter body 1 by pumping air into the airbag 8, and then the fold ring 13 is fitted with the outer wall of the catheter body 1 to achieve the fixation of the airbag 8, and after the airbag 8 is inflated, its outer wall is fitted with the inner wall of the urethra, so that the catheter body 1 is fixed, and then the stability of the catheter body 1 after being inserted into the urethra is ensured to avoid the catheter body 1 from being separated due to accidental contact;

[0023] like Figure 3-Figure 5 As shown, the surgical catheter of the above-mentioned ureteroscope also includes an inner sleeve 14, which is arranged inside the fixed gap 12 and fixedly connected to the airbag 8. The inner sleeve 14 slides axially along the catheter body 1. By sliding the inner sleeve 14 on the catheter body 1, the position of the airbag 8 on the catheter body 1 can be adjusted, which is beneficial to control the length of the catheter body 1 inserted into the urethra. One end of the inner sleeve 14 is inserted into the fixed gap 12 and extends to the pleat ring 13 to avoid affecting the expansion of the pleat ring 13 after the inner sleeve 14 is installed.

[0024] like Figure 1 and Figure 3 As shown, in order to facilitate the output of the guidewire after insertion, a guidewire guide hole 5 is opened on the outside of the catheter body 1 near the front end 2 of the catheter, and an inner lining ring 11 is provided on the inner wall of the guidewire guide hole 5. The setting of the inner lining ring 11 can prevent the catheter body 1 from bending at the guidewire guide hole 5, thereby improving the strength of the catheter body 1.

[0025] like Figure 1-Figure 3 As shown, urinary catheter holes 6 are evenly opened on the outside of the catheter body 1 near the guide wire guide hole 5. The inner diameter of the urinary catheter hole 6 is 1 / 2 of the inner diameter of the guide wire guide hole 5. The setting of the urinary catheter hole 6 facilitates the drainage of urine after the catheter body 1 is inserted, thereby improving the practicality of the device.

[0026] like Figure 1 and Figure 3 As shown, a traction pad 4 is fixed at one end of the front end 2 of the catheter in the catheter body 1, and the upper surface of the traction pad 4 is provided with an inclined surface adapted to the guide wire guide hole 5. With the setting of the traction pad 4, traction after the guide wire is inserted can be achieved to facilitate the insertion of the ureteroscope.

[0027] like Figure 1 and Figure 3 As shown, one end of the inner sleeve 14 extends to the outside of the fixed gap 12 and is installed with a hard plate 7, and the hard plate 7 and the inner sleeve 14 are glued together. The arrangement of the hard plate 7 facilitates the pushing of the inner sleeve 14.

[0028] like Figure 1 As shown, an air tube 9 is installed at one end of the air bag 8, a control valve is provided on the air tube 9, and a connecting sleeve is provided at the other end of the air tube 9. The setting of the connecting sleeve facilitates an external syringe to inflate the air bag 8.

[0029] The working principle and use process of the utility model are as follows: when in use, the catheter body 1 is inserted into the ureter through the urethra. In this process, the front end 2 of the catheter is arranged so that the front end of the catheter body 1 has a certain guiding property, thereby facilitating the insertion of the catheter body 1. With the cooperation between the ball 3 and the mounting groove 10, the ball 3 can roll on the inner wall of the urethra and the ureter, thereby facilitating the change of direction of the catheter body 1 when it is inserted, so as to reduce the resistance of the catheter body 1 when it is inserted. After the catheter body 1 reaches the specified position, the external syringe is connected to the connecting sleeve to inflate the airbag 8, so that the fold ring 13 on the airbag 8 guides the catheter body 1 to the inner wall of the urethra and the ureter. The tube body 1 expands in the direction of the catheter body 1, and then the fold ring 13 fits with the outer wall of the catheter body 1 to achieve the fixation of the airbag 8. After the airbag 8 is inflated, its outer wall fits with the inner wall of the urethra, thereby achieving the fixation of the catheter body 1, and then ensuring the stability of the catheter body 1 after being inserted into the urethra, avoiding the catheter body 1 from being separated due to accidental contact. By inserting the guide wire into the catheter body 1, when facing the patient's ureteral orifice due to congenital variation or late edema, lesions, etc., it is only necessary to align the guide wire guide hole 5 on the catheter body 1 with the abnormally opened ureteral orifice, so that the guide wire can be smoothly pushed into the ureter, and the ureteroscope can be further advanced along the guide wire.

[0030] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ureteroscope surgical catheter, comprising a catheter body (1), characterized in that: Also includes: A catheter front end (2), the catheter front end (2) being arranged at one end of the catheter body (1), and a mounting groove (10) being provided in the catheter front end (2) at an end away from the catheter body (1), and a ball (3) being movably mounted in the mounting groove (10); An airbag (8), the airbag (8) being arranged on the outer periphery of the catheter body (1), and a fixed gap (12) being arranged between the airbag (8) and the catheter body (1), and a pleated ring (13) being evenly arranged on the inner side of the airbag (8) at one end of the fixed gap (12); An inner sleeve (14) is arranged inside the fixed gap (12) and fixedly connected to the airbag (8). The inner sleeve (14) slides axially along the catheter body (1), and one end of the inner sleeve (14) is inserted into the fixed gap (12) and extends to the fold ring (13).

2. A ureteroscope surgical catheter according to claim 1, characterized in that: A guide wire guide hole (5) is provided on the outer side of the catheter body (1) near the front end (2) of the catheter, and an inner lining ring (11) is provided on the inner wall of the guide wire guide hole (5).

3. A ureteroscope surgical catheter according to claim 2, characterized in that: Urinary catheter holes (6) are evenly arranged on the outside of the catheter body (1) near the guide wire guide hole (5), and the inner diameter of the urinary catheter hole (6) is 1 / 2 of the inner diameter of the guide wire guide hole (5).

4. A ureteroscope surgical catheter according to claim 2, characterized in that: A traction pad (4) is fixed at one end of the catheter front end (2) in the catheter body (1), and an upper surface of the traction pad (4) is provided with an inclined surface adapted to the guide wire guide hole (5).

5. A ureteroscope surgical catheter according to any one of claims 1 to 4, characterized in that: One end of the inner sleeve (14) extends to the outside of the fixed gap (12) and is installed with a hard plate (7), and the hard plate (7) and the inner sleeve (14) are glued together.

6. A ureteroscope surgical catheter according to any one of claims 1 to 4, characterized in that: An air pipe (9) is installed at one end of the air bag (8), a control valve is provided on the air pipe (9), and a connecting sleeve is provided at the other end of the air pipe (9).

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