CN219835913U - Ureteral drainage support - Google Patents

Abstract

The utility model provides an intra-ureteral drainage bracket, which comprises a J-shaped part and a straight pipe part, wherein the J-shaped part and the straight pipe part are integrally formed; the J-shaped part and the straight pipe part are hollow tubular structures; one end of the straight pipe part far away from the J-shaped part is an open end, and the open end is of an inverted cone structure; the open end is located 1 to 2 cm above the connection of the ureter and the bladder. The drainage bracket of the utility model can play the roles of supporting, draining and relieving obstruction of the traditional double-pigtail bracket tube, and as the tail end of the drainage bracket is positioned at the lower section of the ureter, the discomfort such as bladder stimulation, hematuria and the like of the traditional bracket tube is eliminated; because the catheter does not pass through the ureteral bladder connecting part, the anti-reflux effect of the Waldeyer sheath can be well reserved, and discomfort such as waist soreness and lumbago caused by reflux caused by the traditional stent tube is also eliminated.

Description

Ureteral drainage support

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to an intra-ureteral drainage bracket.

Background

The ureteral drainage stent has extremely wide application, and all operations and operations involving the renal pelvis and the ureter can use the ureteral drainage stent, such as ureteroscope operation, percutaneous nephroscope operation, plastic operation of the ureteral renal pelvis and the like, and relief of renal postambus and the like.

The traditional ureteral internal drainage stent is a double-pig tail type hollow tubular structure with two J-shaped ends, one end of the traditional ureteral internal drainage stent is arranged in the renal pelvis to prevent downward displacement, and the other end of the traditional ureteral internal drainage stent is arranged in the bladder to prevent retraction of the traditional ureteral internal drainage stent. However, the tail end of the artificial limb is positioned at the J-shaped tail end in the bladder, so that the friction stimulation to bladder mucosa often causes bladder stimulation symptoms such as frequent urination, urgent urination, painful urination and the like, reflux symptoms such as waist soreness, lumbago and the like, discomfort such as haematuria and the like of patients, and the daily life of the patients is seriously influenced. For this reason, some manufacturers modify the terminal "J" shaped structure to a fish tail-like line-like structure, but because it is still disposed in the bladder, there are still discomfort such as irritation, reflux, hematuria, etc.

Disclosure of Invention

In order to solve various problems caused by the stimulation of one end of the ureteral drainage stent to the bladder in the prior art, the utility model provides the ureteral drainage stent, wherein one end of the ureteral drainage stent is arranged in a renal pelvis to prevent the ureteral drainage stent from downwards shifting, and the other end of the ureteral drainage stent is arranged above a ureteral bladder connecting part (Waldeyer sheath), so that the problems of the stimulation, reflux, hematuria and the like of the bladder in the prior art are solved when the ureteral drainage stent is used.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the ureter internal drainage bracket comprises a J-shaped part and a straight pipe part, wherein the J-shaped part and the straight pipe part are integrally formed; the J-shaped part and the straight pipe part are hollow tubular structures. Through the transformation thinking, one end originally placed in the bladder is moved into the ureter, so that the direct friction to the bladder can be avoided, various problems caused by the friction to the bladder are solved, and the actual operation proves that the indwelling ureter is not adversely affected.

Preferably, the J-shaped part and the straight pipe part are made of medical grade silica gel materials.

Preferably, through holes are formed in the J-shaped part (11) and the straight pipe part (12).

Preferably, one end of the straight pipe part far away from the J-shaped part is an open end, and the open end is of an inverted cone structure. The open end is retracted inwards, so that the direct contact and friction with the ureter can be reduced.

Further preferably, the end of the open end is rounded, so that the open end reduces side effects caused by friction even if it collides with the ureter.

Further preferably, the magnetic sheet is wrapped in the opening end, and the magnetic sheet can be arranged into an annular structure, so that the positioning and clamping of the foreign body forceps are facilitated mainly when the drainage bracket is pulled out.

Preferably, the straight pipe part is provided with a deformation section, and the deformation section is designed to be mainly used for adjusting the length of the drainage bracket.

Further preferably, the deformation section is a bellows-like structure, and the bellows-like structure can play a role in adjusting a certain length.

Preferably, a support is provided on the inner wall of the straight tube portion.

Further preferably, the support is spiral in shape.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the ureteral internal drainage stent, the J-shaped end is arranged at the renal pelvis to prevent the lower part of the ureter from being shifted downwards, the straight pipe end of the ureteral internal drainage stent is positioned at the lower section of the ureter, and the upper part of the ureteral bladder connecting part and the Waldey sheath are arranged, so that the stent body can play roles in supporting, draining and relieving obstruction of the traditional double-pigtail stent pipe.

2. According to the ureter opening device, the opening end of the inverted conical structure is arranged, friction to the ureter is reduced, and meanwhile, the magnetic ring piece is arranged, so that operation can be more conveniently completed when the ureter is taken out.

3. The technical scheme of the utility model is not suitable for the situation of ureter terminal pathological changes.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the added through hole of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of the straight pipe portion of the present utility model;

fig. 5 is a schematic structural view of the support member of the present utility model.

FIG. 6 is a schematic view of the present utility model in use.

In the figure: 1 is a through hole, 11 is a J-shaped part, 12 is a straight pipe part, 2 is an open end, 3 is a deformation section, 4 is a supporting piece, 5 is a kidney, 6 is a ureter, and 7 is a bladder.

Detailed Description

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

Example 1

Referring to fig. 1, the present embodiment provides an intra-ureteral drainage stent, which includes a J-shaped portion 11 and a straight tube portion 12, where the J-shaped portion 11 and the straight tube portion 12 are integrally formed; the J-shaped part 11 and the straight pipe part 12 are hollow tubular structures; the J-shaped part 11 and the straight pipe part 12 can be made of medical grade silica gel materials, and can also be made of other materials meeting the requirements, so that the drainage bracket is ensured to have a soft effect.

The J-shaped part 11 has the same structure as the existing drainage bracket, and is placed in the renal pelvis to prevent the downward displacement when in use; meanwhile, the utility model is different from the existing double J-shaped structure and is of a single J-shaped structure, because the open end of the drainage bracket is arranged in the ureter, namely, is positioned 1 to 2 cm above the lower section of the ureter and the ureter bladder connecting part (Waldeyer sheath), thus avoiding various problems caused by the fact that the existing J-shaped part is arranged in the bladder to stimulate the bladder, and meanwhile, the J-shaped part can be omitted.

Referring to fig. 6, when the drainage stent of the present utility model is placed, a guide wire is placed in the ureter 6 on the affected side, the drainage stent is sent into the ureter along the guide wire, the J-shaped part of the drainage stent is remained in the kidney 5, the opening end of the drainage stent is pushed into the position 1 to 2 cm above the tail end of the ureter and the bladder 6 by a push tube, and the guide wire and the push tube are pulled out in sequence.

When the support is taken out, a ureteroscope can be used, the patient can enter the ureter on the affected side, the patient can enter the depth of 1-2 cm, the opening end of the drainage support can be seen, and the ureteroscope foreign body forceps can be used for taking out.

Whether placed or taken out, the anesthesia modes such as local anesthesia, lumbar anesthesia, epidural anesthesia, general anesthesia and the like can be all adopted.

Example two

Referring to fig. 2, this embodiment is a preferred embodiment of the first embodiment, through holes 1 are formed in both the J-shaped portion 11 and the straight tube portion 12, and the size of the through hole 1 is smaller than the size of the open end of the straight tube portion 11.

Referring to fig. 2 and 3, in the present embodiment, through holes 1 are provided on both sides of the wall of the straight pipe portion 12 and are arranged in a symmetrical, staggered manner, and the dotted through holes in fig. 3 represent through holes provided on the wall of the other side.

The inner wall and the outer wall of the drainage bracket can play a certain drainage role, but the condition inside the human body is complex, the situation that the ureter is pressed or the calculus is blocked possibly causes that the gap between the ureter and the drainage bracket is blocked, and at the moment, the drainage effect can be ensured to still exist continuously through the arrangement of the through holes, so that the illness state of a patient is relieved. Meanwhile, due to the arrangement of the through holes, the exhaust effect during drainage can be improved, and the situation of ureteral flatulence is avoided.

Example III

Referring to fig. 4, this embodiment is a preferred solution of the first embodiment, where an end of the straight tube portion 12 away from the J-shaped portion 11 is an open end 2, and the open end 2 is an inverted cone structure; the end part of the opening end is designed smoothly; the magnetic sheet is coated in the opening end.

If the opening end is also of a straight tube structure, the opening end of the drainage bracket and the inner wall of the ureter can generate contact friction; however, when the opening is arranged in an inverted cone shape, namely the diameter of the opening end is smaller than that of the straight tube, the number of times of friction with the inner wall of the ureter can be reduced by the opening end of the drainage bracket in the use process, so that various adverse effects are reduced; meanwhile, the end part of the opening end is in smooth design, so that friction is further reduced, and the stimulation to the inner wall of the ureter is reduced.

Through setting up the magnetic sheet, then be convenient drainage support's taking out, because drainage support's open end is the setting in the ureter, is unfavorable for more equipment to get into, consequently when the foreign matter pincers stretch into the back, the magnetic sheet plays absorption and fixed effect, makes things convenient for the better centre gripping of foreign matter pincers to more smooth take out drainage support.

Example IV

Referring to fig. 4, this embodiment is a preferred embodiment of the first embodiment, in which the straight tube portion 12 is provided with a deformation section 2, and the deformation section 2 in this embodiment adopts a bellows structure.

The structure has the function of telescopic deformation, overcomes the force of deformation without great, and has the capacity of keeping the state after deformation. When the ureter is used, the initial state is stretched maximally, after entering the ureter, the ureter is compressed by utilizing the push tube, and the ureter can also be stretched by using the foreign body forceps and adjusted to a proper length.

Since the open end of the drainage stent of the present utility model is placed inside the ureter, there is a certain requirement for the length, so that it is necessary to provide this deformation section to adjust the length of the proper drainage stent.

The deformation section can also be an inverted cone-shaped opening end with a bellows-shaped structure, and the length of the opening end can be directly adjusted at the moment.

Example five

Referring to fig. 5, in this embodiment, which is a preferred embodiment of the first embodiment, the support member 3 is disposed on the inner wall of the straight tube portion 12, and the support member 3 may take a spiral shape.

Under certain conditions, the degree of the extruded ureter is serious, the effect of opening can not be completely achieved by simply relying on the drainage bracket, and at the moment, a supporting piece in a spiral shape can be arranged on the inner wall of the drainage bracket to play a certain supporting role.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of one of ordinary skill in the art.

Claims (9)

1. Ureteral internal drainage support, its characterized in that: the novel plastic pipe comprises a J-shaped part (11) and a straight pipe part (12), wherein the J-shaped part (11) and the straight pipe part (12) are integrally formed; the J-shaped part (11) and the straight pipe part (12) are hollow tubular structures;

one end of the straight pipe part (12) far away from the J-shaped part (11) is an open end (2), and the open end (2) is of an inverted cone structure;

the open end (2) is positioned 1 to 2 cm above the connection part of the ureter and the bladder.

2. The endoureteral drainage stent according to claim 1, characterized in that: the J-shaped part (11) and the straight pipe part (12) are made of medical grade silica gel materials.

3. The endoureteral drainage stent according to claim 1, characterized in that: through holes (1) are formed in the J-shaped part (11) and the straight pipe part (12).

4. The endoureteral drainage stent according to claim 1, characterized in that: the end part of the opening end (2) is in smooth design.

5. The endoureteral drainage stent according to claim 1, characterized in that: the magnetic sheet is coated in the opening end (2).

6. The endoureteral drainage stent according to claim 1, characterized in that: the straight pipe part (12) is provided with a deformation section (3).

7. The endoureteral drainage stent according to claim 6, characterized in that: the deformation section (3) is of a corrugated tubular structure.

8. The endoureteral drainage stent according to claim 1, characterized in that: the inner wall of the straight pipe part (12) is provided with a supporting piece (4).

9. The endoureteral drainage stent according to claim 8, characterized in that: the support (4) is of helical shape.