CN215739692U - Ureteral stent convenient to it is fixed - Google Patents

Abstract

The utility model discloses a ureteral stent convenient to fix, which comprises a pigtail tube, wherein the pigtail tube is used for penetrating a post-operation ureter and fixing a ureteral body; the internal support pipe support is used for fixing the pigtail pipe at the ureterostomy position, and a notch is formed in the outer wall of one side of the internal support pipe support. The outer dissolvable netting is arranged on the outer side of the tube wall of the traditional double-J tube, the outer dissolvable netting supports and shapes the stoma structure after being supported by the inner tube frame, the outer dissolvable netting is inserted into the double-J tube, the outer wall of the double-J tube is fixed by the closing-up of the end part, the connection between the position where the tube is inserted into the stoma and the double-J tube is guaranteed, the friction of the tube wall of the double-J tube to the stoma is reduced, the pain of a patient is relieved when the ureter is pulled out, and the damage to the ureter and the bladder is reduced.

Description

Ureteral stent convenient to it is fixed

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a ureteral stent convenient to fix.

Background

The ureteral stent is widely applied to postoperative urinary system diseases, and can effectively drain urine and prevent ureter stenosis when being placed in a ureteral under the internal supporting and internal drainage functions, thereby being beneficial to the recovery of the function of the affected side kidney. Ureteral stents are commonly used in surgical procedures such as urinary calculus, ureteral stenosis, hydronephrosis, and obstruction.

The ureteral stent which is commonly used in clinic is mainly a double J-shaped tube, because the shape of the ureteral stent is similar to a pigtail, the ureteral stent is also called a pigtail, the existing ureteral stent is placed at a stoma position for a long time, complications are easy to occur, and the ureteral stent slips, shifts and the like, so that the slipping into the stent tube in the ureteral often causes urine drainage obstacle, and causes urinary tract obstruction and infection.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a ureteral stent convenient to fix.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a ureteral stent to facilitate fixation, comprising:

the pigtail is used for threading the postoperative ureter and fixing the ureter body;

the internal support pipe frame is used for fixing the pigtail pipe at the ureterostomy position, and a notch is formed in the outer wall of one side of the internal support pipe frame;

the outer dissolvable net is wrapped on the outer wall of the inner support pipe frame and used for supporting the ureterostomy position;

the connecting ring is positioned on the outer edge of one side of the end part of the inner support pipe frame, rotating half rings are annularly distributed on the outer wall of the connecting ring at equal intervals, and every two side walls of the rotating half rings are overlapped;

the closing ring is positioned on the outer wall of the end part of the outer soluble netting, and a drawing line is inserted in the inner side of the closing ring.

As a further aspect of the utility model, the outer dissolvable mesh is made of chitin or chitosan.

As a further scheme of the utility model, the outer wall of the outer dissoluble net coat is provided with a lubricating layer, and the lubricating layer is made of medical hydrophilic coating.

As a further scheme of the utility model, the end part of the inner support pipe frame is provided with a bulge, the inner side of the end part of the inner support pipe frame is of an inner rounded corner structure, and the outer soluble netting is positioned.

As a further scheme of the utility model, the outer walls of the two ends of the rotating semi-ring are respectively provided with a rotating ring, and the inner part of the rotating ring is rotatably connected to the outer wall of the connecting ring.

As a further scheme of the utility model, the cross section of the closing-in ring is of an elliptical structure.

The utility model has the beneficial effects that: this ureteral stent is equipped with outer soluble etting outside the pipe wall of traditional two J pipes, wherein outer soluble etting utilizes inner tube frame to support after the design and supports the structure of making a mouthful, and outer soluble etting alternates two J pipes simultaneously, and the binding off of tip is utilized to the outer wall of two J pipes is fixed, has guaranteed that the pipeline inserts the contact between the position of making a mouthful and two J pipes, has also reduced the pipe wall of two J pipes to the friction of making a mouthful, when the ureter was extracted, it is painful to reduce patient to reduce damage ureter and bladder.

Drawings

FIG. 1 is a schematic diagram of an arrangement structure of an external dissolvable mesh for a ureteral stent convenient to fix, according to the present invention;

FIG. 2 is a schematic diagram of the movable structure of a rotating half ring of the ureteral stent convenient to fix according to the present invention;

fig. 3 is a perspective structural diagram of a ureteral stent convenient to fix, which is provided by the utility model;

FIG. 4 is a schematic diagram of the shaping structure of an external dissolvable mesh for a ureteral stent convenient to fix, which is provided by the utility model;

fig. 5 is a schematic diagram of the general structure of a ureteral stent convenient to fix, which is provided by the utility model.

In the figure: 1. an outer dissolvable netting; 2. supporting the pipe frame internally; 3. a closing ring; 4. a connecting ring; 5. rotating the semi-ring; 6. pigtail tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a ureteral stent convenient to fix comprises a pigtail 6, wherein the pigtail 6 is used for the tube penetration of a postoperative ureter and the fixing of a ureter body; the internal support pipe frame 2 is used for fixing a pigtail 6 at a ureterostomy position, and a notch is formed in the outer wall of one side of the internal support pipe frame 2; the external dissolvable net 1 is wrapped on the outer wall of the internal support pipe frame 2, and the external dissolvable net 1 is used for supporting the ureterostomy position; the connecting ring 4 is positioned on the outer edge of one side of the end part of the inner support pipe frame 2, the outer wall of the connecting ring 4 is annularly provided with rotating semi-rings 5 at equal intervals, and every two side walls of the rotating semi-rings 5 are overlapped; the closing-in ring 3, the closing-in ring 3 is located the tip outer wall of outer soluble etting frame 1, and the inboard interlude of closing-in ring 3 has taken out the acting as go-between, outer soluble etting frame 1 is made by chitin or chitosan, the outer wall of outer soluble etting frame 1 is equipped with the lubricant film, and the lubricant film is made by medical hydrophilic coating, the tip of interior support tube frame 2 is equipped with the arch, and the tip inboard of interior support tube frame 2 is interior fillet structure, outer soluble etting frame 1 is located, the both ends outer wall that rotates semi-ring 5 all is equipped with the rotating ring, and the inside rotation of rotating ring connects on the outer wall of go-between 4, the cross-section of closing-in ring 3 is oval column structure.

The working principle of the ureteral stent is as follows:

1. when the device is used, the outer soluble net 1 and the inner support pipe frame 2 are guided into a stoma position, the net is shaped by the inner support pipe frame 2, the inner support pipe frame 2 is pulled upwards, the net supports the inner wall of the stoma, the pigtail 6 is inserted, and the outer wall of the pigtail 6 is continuously wrapped on the outer side of the pipe wall after the net is heated;

2. the outer dissoluble netting 1 and the inner support pipe frame 2 are positioned and fixed at the stoma position, the rotating half rings 5 at the end parts can synchronously retract inwards and outwards by rotating 360 degrees, the petal-shaped structures are better fixed at the stoma, and the netting is shaped;

3. and finally, tightly holding the pipe wall by using the closing ring 3 at the end part of the netting, and fixing the wire end led out from the closing ring 3 on the pipe wall or fixedly applying a pipeline to reduce the displacement of the outer soluble netting 1 and the sliding of the pigtail 6.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", "first", "second", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (6)

1. A ureteral stent that facilitates fixation, comprising:

the pigtail (6) is used for threading the postoperative ureter and fixing the ureter body;

the internal support pipe frame (2) is used for fixing the pigtail (6) at the ureterostomy position, and a notch is formed in the outer wall of one side of the internal support pipe frame (2);

the outer dissolvable net (1) is wrapped on the outer wall of the inner support pipe frame (2), and the outer dissolvable net (1) is used for supporting the ureterostomy position;

the connecting ring (4) is positioned on the outer edge of one side of the end part of the inner support pipe frame (2), rotating semi-rings (5) are annularly distributed on the outer wall of the connecting ring (4) at equal intervals, and every two side walls of the rotating semi-rings (5) are overlapped;

the closing ring (3) is positioned on the outer wall of the end part of the outer dissoluble netting (1), and a drawing line is inserted in the inner side of the closing ring (3).

2. A ureteral stent to facilitate fixation according to claim 1, characterized by the fact that the outer dissolvable mesh (1) is made of chitin or chitosan.

3. The ureteral stent convenient for fixation according to claim 1, wherein the outer wall of the outer dissolvable mesh (1) is provided with a lubricating layer, and the lubricating layer is made of medical hydrophilic coating.

4. A ureteral stent convenient for fixation according to claim 1, wherein the end of the inner support tube holder (2) is provided with a bulge, and the inner side of the end of the inner support tube holder (2) is of an inner rounded structure.

5. A ureteral stent convenient for fixation according to claim 1, wherein the outer walls of both ends of the rotating half ring (5) are provided with rotating rings, and the inner part of the rotating ring is rotatably connected to the outer wall of the connecting ring (4).

6. A ureteral stent facilitating fixation according to claim 1, characterized in that the cross section of the cuff ring (3) is an oval-like structure.

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