CN217090689U - Combined ureter hydraulic expansion pipeline suite - Google Patents

Abstract

The utility model relates to a combined ureter hydraulic expansion pipeline suite, which comprises a first pipe body and a second pipe body; a first bag body is arranged at the first end of the first pipe body; the first tube is communicated with the first bag body; a second bag body is arranged at the first end of the second pipe body, and the second pipe body is communicated with the second bag body; the second bag body is provided with a cavity, and the first pipe body is arranged in the cavity in a sliding manner; the second pipe body is further provided with a water injection channel, the output end of the water injection channel is located on one side close to the second capsule body, and the output end of the water injection channel is located between the first capsule body and the second capsule body. The utility model discloses an adopt split type first body and second body, first body and second body mutual slip setting, prior art relatively, the upper end diameter of pipeline external member can obviously reduce, puts into the in-process in the ureter, the probability greatly reduced that the upper end was damaged in the ureter.

Description

Combined ureter hydraulic expansion pipeline suite

Technical Field

The utility model relates to a flexible ureteroscope operation treatment technical field especially relates to combination formula ureter hydraulic pressure expansion pipeline external member.

Background

Compared with a ureter hard lens, the ureter soft lens has a bendable function, can treat ureteral calculus which goes up to a kidney along a ureter in a calculus crushing process, and ureter upper segment calculus, and is more and more subjected to ureter soft lens operation treatment. The percutaneous nephrolithotomy is the absolute mainstream of nephrolithotomy in kidney stones with indications of surgical lithotomy for a long time before the development of ureter soft lens technology and technology. Compared with the percutaneous nephroscope lithotripsy, the ureter soft-lens lithotripsy does not need renal puncture, so the risk of renal hemorrhage caused by puncture expansion and pulling the lens body during lithotripsy is avoided. With the promotion of the technology of the ureter soft lens and the popularization of the technology, more and more kidney stones and ureter upper segment stones which are not loaded too much and have operation indication are treated by the ureter soft lens in recent years. The percutaneous nephrolithotomy combined with the ureter soft lens is also a research hotspot. For kidney stones with high hardness and unsuccessful extracorporeal shock wave lithotripsy, ureteroscopy became the first choice.

In fact, ureters are flexible, water-expandable muscular tubes with a greater passive expansion capacity, which can be understood from the anatomy of the ureter. Compared with the mechanical force expansion of the ureter, water and gas expand the ureter with softer and more uniform force. As a urologist, expansion of the ureter by water, increase of the internal diameter is very easy to understand: when ureteral calculus obstructs ureter, the part above obstruction plane of kidney and ureter is expanded by urine to different extent, even the diameter of ureter inner diameter exceeds 20 mm. Moreover, this expansion is mostly reversible, without significant impairment of the ureteral anatomy and function: after the acute ureteral obstruction is relieved for a period of time, B-ultrasonic examination or radiography examination is carried out again, the ureter which is expanded originally is not expanded any more, the renal effusion disappears, and the renal function is recovered to be normal. However, we can understand from the following experience: at the initial stage of relieving the acute ureteral obstruction, the ureter still keeps an expanded state: ureteral calculus and renal colic patients receive ureteroscope calculus, only a spacious ureter is found, and no ureteral calculus is found, or calculus is discharged. When the calculus is discharged, a spacious ureter can still be obtained.

This project team has applied for an integrated ureteral dilation drainage kit: "a double-balloon catheter kit for dilating ureter", application No. CN201810563731.5, however, when the upper balloon is placed at UPJ, it is difficult to ensure that the lower balloon is positioned at the position close to the ureter bladder outlet of the bladder wall inner section, so the kit design and production must have a plurality of sizes, which increases the cost; secondly, for a particular ureter, the choice of kit is also difficult: the length of the ureter needs to be measured, and the ureter needs to be replaced again when the size is deviated, so that time is wasted, and the increase of damage caused by multiple times of implantation is aggravated; in addition, the diameter of the upper end of the integrated sleeve is large, so that the upper end of the ureter is easily damaged in the process of being placed in the ureter.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model discloses a shortcoming and not enough among the prior art are overcome to the aim at, provide combination formula ureter hydraulic pressure expansion pipe external member.

The combined hydraulic ureteral dilation pipeline suite comprises a first pipe body and a second pipe body;

a first bag body is arranged at the first end of the first pipe body; the first tube is communicated with the first bag body;

a second bag body is arranged at the first end of the second pipe body, and the second pipe body is communicated with the second bag body; the second bag body is provided with a cavity, and the first pipe body is arranged in the cavity in a sliding manner; the second pipe body is further provided with a water injection channel, the output end of the water injection channel is located on one side close to the second bag body, and the output end of the water injection channel is located between the first bag body and the second bag body.

Furthermore, a drainage port is formed in the first end of the first pipe body; the first bladder is positioned adjacent to the drainage port; a first channel and a second channel are arranged on one side, far away from the first bag body, of the first pipe body; the first channel is in communication with the first bladder; the second channel is communicated with the drainage port.

Further, the water injection channel is positioned in the second pipe body; the water injection passage passes through the second capsule.

Further, the first balloon is saccular.

Further, the second balloon is in a ring-shaped tubular shape, and a cavity is formed in the center of the second balloon; the inner wall of the second bag body is a circular ring surface.

Further, the diameters of the first pipe body and the second pipe body are 3.5Fr-4.5 Fr; the diameters of the water injection channel, the first channel and the second channel are 1.5Fr-2 Fr.

Further, the drainage opening is conical.

Further, the device also comprises a hydrostatic pressure measuring device; the hydrostatic pressure measuring device is connected with the water injection channel.

The utility model also provides a use method of modular ureter hydraulic pressure expansion pipe external member utilizes foretell combination ureter hydraulic pressure expansion pipe external member to carry out ureter expansion, including following step:

the method comprises the following steps: placing the first tube and the first sac body into the upper section of the ureter, injecting a contrast agent into the second channel and flowing out of the drainage port, determining that the first sac body is located at a proper position by combining external equipment, and further injecting liquid or gas into the first sac body through the first channel to enable the first sac body to be full; urine produced in the kidney is discharged to the outside of the body through the drainage port and the second channel;

step two: the first tube body passes through the cavity of the second bag body, and then the second tube body and the second bag body are placed into the ureter; injecting a contrast agent into the water injection channel and flowing out of the water injection channel from the output end of the water injection channel, and confirming that the second capsule body is located at a proper position by combining with external equipment; then injecting liquid or gas into the second bag body through the second pipe body to enable the second bag body to be full;

step three: and injecting liquid into the water injection channel and expanding the ureter.

Further, before the first step, firstly, a super-smooth guide wire is placed into the ureter, the top end of the guide wire is ensured to reach the kidney collecting system, and then the guide wire is placed into the first tube body along the super-smooth guide wire;

after the ureter is expanded in the third step, extracting liquid or gas in the second sac body, and extracting the second pipe body; thereby pumping out the liquid or gas of the first bag body and pumping out the first tube body.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the hydraulic expansion pipeline external member of the combined ureter adopts the split type first pipe body and the split type second pipe body, the first pipe body and the second pipe body are arranged in a sliding way, and the distance between the first bag body and the second bag body can be flexibly adjusted, so that the ureter of a certain section can be accurately and freely expanded according to needs; compared with the three-channel or four-channel dilating conduit cannula in the prior art, the product of the patent only has the first balloon and the corresponding conduit entering the deep part (middle upper section) of the ureter, the diameter of the part is thinner, and the probability of damaging the middle upper end of the ureter is greatly reduced in the process of being placed in the ureter;

(2) the positions of the first capsule body and the second capsule body in the ureter can be accurately judged by combining a contrast medium and external detection equipment, the first capsule body and the second capsule body are filled and the ureter is blocked after reaching the proper positions, the adaptability of the conduit set to the ureters of different patients is greatly improved, the time and the cost are saved, and the ureter damage caused by multiple times of implantation is avoided,

(3) by arranging the hydrostatic pressure measuring device to be connected with the water injection channel, the pressure of the ureter to be plugged can be directly measured so as to regulate and control the liquid injected by the water injection channel and ensure that the ureter is expanded to a proper size.

(4) Through setting up conical drainage mouth, can play the direction function at the in-process of imbedding ureteral catheter in the human body, make ureteral catheter imbed the human body smoothly, also play the effect of protecting first utricule simultaneously.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a combined hydraulic ureteral dilating conduit set according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic structural diagram of a second bladder of the present invention;

fig. 4 is a use state diagram of the combined hydraulic ureteral dilating conduit set of the present invention.

In the figure: 1. a ureter; 10. a first pipe body; 11. a first bladder; 12. a drainage opening; 13. a first channel; 14. a second channel; 20. a second tube body; 21. a second bladder; 211. a cavity; 212. a torus; 22. a water injection channel; 30. hydrostatic pressure measuring device.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first", "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.

It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "hollow" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1 to 4, the combined hydraulic ureteral dilation tube set of the present embodiment includes a first tube 10 and a second tube 20;

specifically, a first end of the first tube 10 is provided with a first bladder 11; the first tube 10 is in communication with the first bladder 11;

more specifically, the first balloon 11 is balloon-shaped;

more specifically, a drainage port 12 is formed at a first end of the first tube 10; the first bladder 11 is located adjacent to the drainage port 12; a first channel 13 and a second channel 14 are provided on the side of the first tube 10 remote from the first balloon 11; said first channel 13 is in communication with said first bladder 11; the second channel 14 is communicated with the drainage port 12; the vents 12 are preferably conical.

Specifically, a second bladder 21 is disposed at a first end of the second tube 20, and the second tube 20 is communicated with the second bladder 21; the second bladder 21 is provided with a cavity 211, and the first tube 10 is slidably arranged in the cavity 211; the second tube 20 is further provided with a water injection channel 22, an output end of the water injection channel 22 is located at one side close to the second capsule 21, and an output end of the water injection channel 22 is located between the first capsule 11 and the second capsule 21;

more specifically, the water injection channel 22 is located inside the second pipe body 20; the water injection channel 22 passes through the second capsule 21;

more specifically, the second balloon 21 is annular and tubular, and a cavity 211 is formed in the center of the second balloon 21; preferably, the inner wall of the second capsule 21 is an arc or a circular ring 212, and the present embodiment is preferably a circular ring 212.

In the preferred embodiment, the diameters of the first pipe body 10 and the second pipe body 20 are 3.5Fr to 4.5Fr, and the preferred embodiment is 4 Fr; the water injection passage 22, the first passage 13 and the second passage 14 have a diameter of 1.5Fr to 2Fr, and preferably 1.5Fr in this embodiment.

In the preferred embodiment, a hydrostatic pressure measuring device 30 (not shown) is also included; the hydrostatic pressure measuring device 30 is connected with the water injection channel 22; the hydrostatic pressure measuring device 30 may preferably be a constant pressure pump, and more specifically, the constant pressure pump may be a water injection pump or a liquid injection pump with controllable and settable pressure.

The embodiment also provides a use method of the combined ureter 1 hydraulic expansion conduit kit, and the ureter 1 is expanded by using the combined ureter 1 hydraulic expansion conduit kit, which includes the following steps:

the method comprises the following steps: in order to better place the hydraulic expansion pipeline kit of the combined ureter 1 of the present embodiment, the lower segment of the ureter 1 can be expanded through the existing single balloon catheter, so that the inner diameter of the lower segment of the ureter 1 is increased, and the increased inner diameter can accommodate the second tube 20 and the second balloon 21 of the present embodiment;

further, the first tube 10 and the first capsule 11 are inserted into the upper section of the ureter 1 from the outside of the body through the urethra of the human body, the contrast agent is injected into the second channel 14 and flows out from the drainage port 12, and an external device (not shown) is combined to confirm that the first capsule 11 is located at a proper position, namely, the first capsule 11 is located at position UPJ; then liquid or gas is injected into the first capsule body 11 through the first channel 13, so that the first capsule body 11 is full and is tightly pressed against the inner wall of the ureter 1; urine produced in the kidney is discharged to the outside of the body through the drainage port 12 and the second passage 14;

step two: the first tube 10 is inserted through the cavity 211 of the second capsule 21, and then the second tube 20 and the second capsule 21 are inserted into the ureter 1; injecting contrast agent into the injection channel 22 and flowing out from the output end thereof, and confirming that the second capsule 21 is positioned at a proper position by combining with an external device even if the second capsule 21 is positioned at the inner section of the ureter 1 bladder wall; further, the second bladder 21 is filled with liquid or gas through the second tube 20; after the second bag body 21 is filled, the outer side of the second bag body 21 is tightly pressed against the inner wall of the ureter 1, and the annular surface 212 on the inner side of the second bag body 21 can be tightly attached to the outer wall of the first pipe body 10, so that a gap between the inner wall of the second bag body 21 and the outer wall of the first pipe body 10 can be sealed, and water leakage is avoided;

step three: injecting a liquid, such as sterile saline isotonic with urine, into the water injection passage 22 through a syringe with a pressure pump, maintaining a constant pressure, so that the ureter 1 between the first and second balloon bodies 11 and 21 is expanded; after a certain period of expansion, the liquid or gas in the second bladder 21 is pumped out, and then the second tube 20 is pumped out; further pumping out the liquid or gas of the first bladder 11 and the first tube 10;

and finally, after the whole target section ureter 1 is fully expanded, a sheath can be arranged for carrying out ureter 1 soft-lens lithotripsy.

In the preferred embodiment, before step one, a super-slippery guidewire (not shown) is first placed into the ureter 1 to ensure that the top end of the guidewire reaches the renal collecting system, and then the first tube 10 and the first balloon 11 are placed into the ureter 1 along the super-slippery guidewire.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the combined hydraulic ureteral dilation pipeline set adopts the split first pipe body and the split second pipe body, and the first pipe body and the second pipe body are arranged in a sliding way, so that compared with the prior art, the diameter of the upper end of the pipeline set can be obviously reduced, and the probability of damage to the upper end of the ureteral is greatly reduced in the process of being placed into a ureter;

(2) the positions of the first bag body and the second bag body in the ureter can be accurately judged by combining a contrast medium and external detection equipment, the first bag body and the second bag body are filled and the ureter is blocked after reaching the proper positions, the adaptability of the conduit set to the ureters of different patients is greatly improved, the time and the cost are saved, and the ureter injury caused by multiple times of implantation is avoided,

(3) the pressure of the ureter to be plugged can be directly measured by arranging the hydrostatic pressure measuring device to be connected with the water injection channel so as to regulate and control the liquid injected into the water injection channel and ensure that the ureter is expanded to a proper size.

(4) Through setting up conical drainage mouth, can play the direction function at the in-process of imbedding ureteral catheter in the human body, make ureteral catheter imbed the human body smoothly, also play the effect of protecting first utricule simultaneously.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (8)

1. Combined ureter hydraulic expansion pipe kit, its characterized in that includes:

the first end of the first tube body is provided with a first sac body; the first tube is communicated with the first bag body;

a second tube, a second balloon is arranged at a first end of the second tube, and the second tube is communicated with the second balloon; the second bag body is provided with a cavity, and the first pipe body is arranged in the cavity in a sliding manner; the second pipe body is further provided with a water injection channel, the output end of the water injection channel is located on one side close to the second bag body, and the output end of the water injection channel is located between the first bag body and the second bag body.

2. The hydraulic ureteral dilation tubing set of claim 1, wherein the first end of the first tube has a drainage port; the first bladder is positioned adjacent to the drainage port; a first channel and a second channel are arranged on one side of the first tube body, which is far away from the first bag body; the first channel is in communication with the first bladder; the second channel is communicated with the drainage port.

3. The combined hydraulic ureteral dilation tubing set of claim 2, wherein the water injection channel is located within the second tube body; the water injection passage passes through the second capsule.

4. The modular ureteral hydraulic dilation tubing set of claim 3, wherein the first balloon is balloon-like.

5. The modular ureteral hydraulic dilation catheter kit of claim 4, wherein the second balloon is annular tubular, and a central location of the second balloon forms a cavity; the inner wall of the second bag body is a circular ring surface.

6. The combination ureteral hydraulic dilation tubing set of claim 5, wherein the first and second tubes have a diameter of 3.5Fr to 4.5 Fr; the diameters of the water injection channel, the first channel and the second channel are 1.5Fr-2 Fr.

7. The combination ureteral hydraulic dilation tubing set of claim 2, wherein the drainage port is conical.

8. The combination ureteral hydraulic dilation tubing set of claim 2, further comprising a hydrostatic pressure measurement device; the hydrostatic pressure measuring device is connected with the water injection channel.

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