Laparoscopic ureteral access catheter

Abstract

The utility model provides a kind of ureteral catheter under laparoscope, belong to the technical field of catheter, it is mainly aimed at the problem of lack of visualization function and insufficient measuring accuracy of existing catheter, and the following technical scheme is proposed, the closed probe is provided in one end of main body, support frame is provided in main body, scale line is printed on the outer wall of main body, the outer wall of main body is coated with fluorescent coating, after catheter is inserted into patient ureter, fluorescent coating can be detected by external instrument, so that doctor can determine the position of catheter in patient body, provide reference for doctor to judge patient ureter position, improve operation success rate, meanwhile, doctor can determine the length of the part of catheter inserted into patient body by scale line on the outer wall of catheter, provide help for doctor to judge pathological change position, make surgical process safer.

Description

Technical Field

[0001] This utility model belongs to the field of exploration catheter technology, and more specifically, it relates to a laparoscopic ureter exploration catheter. Background Technology

[0002] Laparoscopic surgery is the mainstream treatment for common urological diseases such as ureteral stricture, stones, and tumors. In laparoscopic ureteral surgery, the ureter is located deep in the body. After the exploratory catheter is inserted into the ureter, the surgeon's experience is often needed to determine the condition inside the ureter. The surgeon needs a tool that can accurately explore the length of the ureter, locate the lesion site, and cause minimal tissue damage. Traditional surgery relies on the resistance feedback of the catheter or guidewire inserted into the ureter to determine the location of the lesion. This method is highly unreliable, easily causes ureteral perforation, and has insufficient accuracy in measuring the length of the exploratory catheter inserted into the ureter. Utility Model Content

[0003] To address the aforementioned technical problems, this invention provides a laparoscopic ureteral exploration catheter, which solves the technical problems of existing exploration catheters lacking visualization functions and having insufficient measurement accuracy.

[0004] The purpose and function of this laparoscopic ureteral exploration catheter are achieved by the following specific technical means:

[0005] A laparoscopic ureteral exploration catheter includes an exploration catheter, which comprises a sealed probe, a body, a support frame, and a storage box.

[0006] A closed probe is provided at one end of the main body, and a support frame is provided inside the main body;

[0007] The outer wall of the body is printed with scale lines, the outer wall of the body is coated with a fluorescent coating, and the body is made of rubber.

[0008] As a further embodiment of this utility model, the scale lines printed on the body have digital scale markings.

[0009] As a further embodiment of this utility model, the top of the storage box is provided with a sealing cover, the storage box is provided with a spiral rod, the bottom of the storage box is provided with a connecting hole, one end of the spiral rod is connected to a connecting rod, one end of the connecting rod is connected to the spiral rod, and the other end passes through the connecting hole;

[0010] One end of the connecting rod is connected to a hand crank, the protruding part of the hand crank is connected to a hand crank handle, and a sleeve rod is fitted on the hand crank handle.

[0011] As a further embodiment of this utility model, the top of the storage box is provided with a protrusion, the bottom of the sealing cover is provided with four sets of snap-fit ​​parts, the snap-fit ​​parts are snapped into the protrusion at the top of the storage box, the spiral rod is connected to the connecting rod by welding, and the main shaft of the spiral rod is coaxial with the connecting hole;

[0012] The hand crank is connected to the connecting rod by a first screw, and the hand crank handle is connected to the hand crank is connected by a second screw. The inner diameter of the sleeve rod is larger than the outer diameter of the hand crank handle.

[0013] As a further embodiment of this utility model, the outer wall of the storage box is provided with an arc-shaped groove, and reinforcing ribs are provided between the four sets of snap-fit ​​parts.

[0014] As a further embodiment of this utility model, the sealed probe is provided with side holes on both sides, and an infusion channel is provided inside the body, the infusion channel being connected to the side holes.

[0015] As a further embodiment of this utility model, the diameters of the main body and the infusion channel are 2.67 mm and 2 mm, respectively.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The outer wall of the device is coated with a fluorescent coating. After the probe catheter is inserted into the patient's ureter, its position in the patient's body can be detected by external instruments, thereby helping doctors to determine the location of the lesion and improving the success rate of the surgery.

[0018] 2. The main body is printed with scale lines. After the probing catheter is inserted into the patient's ureter, the doctor can measure the length of the part of the main body inserted into the patient's body through the scale on the main body. This provides a basis for the doctor to confirm the location of the ureteral lesion. In addition, the closed probe at the end of the main body is arc-shaped, which can reduce the friction between the end of the main body and the patient's ureter during the operation and prevent the probing catheter from damaging the ureter. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a laparoscopic ureteral exploration catheter according to the present invention;

[0020] Figure 2 This is an exploded view of a laparoscopic ureteral exploration catheter according to this utility model;

[0021] Figure 3 for Figure 2 Enlarged view of region a in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of the main body of a laparoscopic ureteral exploration catheter according to this utility model;

[0023] Figure 5for Figure 4 Enlarged view of region b in the middle;

[0024] Figure 6 This is a schematic diagram of the internal structure of the main body of a laparoscopic ureteral exploration catheter according to the present invention.

[0025] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0026] 100. Body; 101. Sealed probe; 102. Support frame; 103. Side hole; 104. Infusion channel; 105. Storage box; 106. Sealing cap; 107. Spiral rod; 108. Connecting rod; 109. Hand crank; 110. Hand crank handle; 111. Sleeve rod; 112. Snap-fit ​​component. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0028] Example:

[0029] As attached Figure 1 To be continued Figure 6 As shown:

[0030] This utility model provides a laparoscopic ureteral exploration catheter, including an exploration catheter, which includes a body 100, a support frame 102, and a closed probe 101. The closed probe 101 is provided at one end of the body 100. The closed probe 101 is arc-shaped, which can reduce the friction between the closed probe 101 and the patient's ureter and reduce the harm to the patient. The support frame 102 is provided inside the body 100.

[0031] The outer wall of the main body 100 is printed with scale lines and coated with a fluorescent coating. The fluorescent coating can be made of fluorescent pigment and can be used for imaging. After the main body 100 is inserted into the patient's ureter, the external instrument can detect the fluorescent imaging layer, so that the doctor can accurately determine the position of the main body 100 in the patient's body. The main body 100 is made of rubber.

[0032] The closed probe 101 has side holes 103 through both sides, and the body 100 has an infusion channel 104 inside, which is connected to the side holes 103.

[0033] The main body 100 is available in two models, 8F and 10F, based on its diameter. The diameters of the 8F main body 100 and the infusion channel 104 are 2.67mm and 2mm, respectively, while the diameters of the 10F main body 100 and the infusion channel 104 are 3.33mm and 2.67mm, respectively. The two sizes of the main body 100 can meet the surgical needs of different patients.

[0034] The scale lines printed on the main body 100 have numerical scale markings, for example, they can be represented as each grid spacing being 2cm, and the length of the part of the main body 100 with the scale lines printed on it being 20cm.

[0035] The main body 100 is equipped with a storage box 105. The top of the storage box 105 is provided with a sealing cover 106. The storage box 105 is provided with a spiral rod 107. The bottom of the storage box 105 is provided with a connecting hole. One end of the spiral rod 107 is connected to a connecting rod 108. One end of the connecting rod 108 is connected to the spiral rod 107, and the other end is inserted into the connecting hole.

[0036] One end of the connecting rod 108 is connected to a hand crank 109. The protruding part of the hand crank 109 is connected to a hand crank handle 110. A sleeve rod 111 is fitted on the hand crank handle 110. Before storage, open the sealing cover 106, and then push the hand crank handle 110 toward the opening of the storage box 105 to extend the spiral rod 107. Wrap the non-detecting end of the main body 100 around the extended part of the spiral rod 107. Manually control the hand crank handle 110 to drive the hand crank 109 to rotate. The hand crank handle 109 then drives the spiral rod 107 to rotate through the connecting rod 108, winding the main body 100 around the main shaft of the spiral rod 107. After winding, reset the hand crank handle 110, and then close the sealing cover 106 to complete the storage of the main body 100.

[0037] The storage box 105 has a protrusion on the top, and the sealing cover 106 has four sets of snap-fit ​​parts 112 at the bottom. The snap-fit ​​parts 112 are snapped onto the protrusion on the top of the storage box 105. The spiral rod 107 is connected to the connecting rod 108 by welding. The main shaft of the spiral rod 107 is coaxial with the connecting hole.

[0038] The hand crank 109 is connected to the connecting rod 108 by the first screw, and the hand crank 110 is connected to the hand crank 109 by the second screw. The inner diameter of the sleeve rod 111 is larger than the outer diameter of the hand crank 110. The non-fitted sleeve can reduce friction and make it easier to manually crank the hand crank 110.

[0039] The outer wall of the storage box 105 is provided with an arc-shaped groove. The arc-shaped groove can fit the fingers that hold the storage box 105 and increase friction to prevent the storage box 105 from falling during storage. Reinforcing ribs are provided between the four sets of snap-fit ​​parts 112 to improve the strength of the snap-fit ​​parts 112 and prevent the snap-fit ​​parts 112 from breaking.

[0040] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A laparoscopic ureteral exploration catheter, comprising an exploration catheter, characterized in that: The probe includes a sealed probe (101), a body (100), a support frame (102), and a storage box (105). A closed probe (101) is provided at one end of the main body (100), and a support frame (102) is provided inside the main body (100). The outer wall of the body (100) is printed with scale lines, the outer wall of the body (100) is coated with a fluorescent coating, and the body (100) is made of rubber.

2. The laparoscopic ureteral exploration catheter as described in claim 1, characterized in that: The storage box (105) is provided with a sealing cover (106) on the top, and a spiral rod (107) is provided inside the storage box (105). A connecting hole is provided through the bottom of the storage box (105). One end of the spiral rod (107) is connected to a connecting rod (108). One end of the connecting rod (108) is connected to the spiral rod (107), and the other end passes through the connecting hole. One end of the connecting rod (108) is connected to a hand crank (109), the protruding part of the hand crank (109) is connected to a hand crank handle (110), and a sleeve rod (111) is sleeved on the hand crank handle (110).

3. The laparoscopic ureteral exploration catheter as described in claim 2, characterized in that: The storage box (105) has a protrusion on the top, and the sealing cover (106) has four sets of snap-fit ​​parts (112) at the bottom. The snap-fit ​​parts (112) are snapped onto the protrusion on the top of the storage box (105). The spiral rod (107) is connected to the connecting rod (108) by welding. The main shaft of the spiral rod (107) is coaxial with the connecting hole. The hand crank (109) is connected to the connecting rod (108) by a first screw, and the hand crank handle (110) is connected to the hand crank (109) by a second screw. The inner diameter of the sleeve rod (111) is larger than the outer diameter of the hand crank handle (110).

4. The laparoscopic ureteral exploration catheter as described in claim 3, characterized in that: The outer wall of the storage box (105) is provided with an arc-shaped groove, and the four sets of snap-fit ​​parts (112) are provided with reinforcing ribs.

5. The laparoscopic ureteral exploration catheter as described in claim 1, characterized in that: The scale lines printed on the body (100) have digital scale markings.

6. The laparoscopic ureteral exploration catheter as described in claim 1, characterized in that: The closed probe (101) has side holes (103) through both sides, and the body (100) has an infusion channel (104) inside, which is connected to the side holes (103).

7. The laparoscopic ureteral exploration catheter as described in claim 6, characterized in that: The diameters of the body (100) and the infusion channel (104) are 2.67 mm and 2 mm, respectively.

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