CN212490056U - Flexible mirror sheath of ureter of integral type - Google Patents

Abstract

The utility model discloses an integrated ureteroscope sheath, which comprises a sheath pipe, wherein the sheath pipe is a hollow pipeline, a baffle plate is arranged in the sheath pipe to divide the hollow pipeline into a first perfusion water inlet pipeline and a first suction water outlet pipeline, and the first perfusion water inlet pipeline and the first suction water outlet pipeline are not communicated with each other; the baffle sets up along sheath pipe axial, and wherein first water inlet pipe that pours sets up first water inlet of pouring in the non-working end, and first suction water pipeline sets up first negative pressure suction port in the non-working end.

Description

Flexible mirror sheath of ureter of integral type

Technical Field

The utility model relates to the technical field of medical equipment, especially relate to a flexible mirror sheath of ureter of integral type.

Background

Renal calculus (renal calculi) is caused by abnormal accumulation of some crystalline substances (such as calcium, oxalic acid, uric acid, cystine and the like) and organic matrixes (such as matrix A, acidic mucopolysaccharide and the like) in the kidney, is a common disease and frequently encountered disease of the urinary system, and 90 percent of the renal calculus contains calcium, wherein calcium oxalate calculus is the most common.

Currently, there are several treatment modalities for kidney stones: physically removing stones from a large amount of drinking water; extracorporeal shock wave lithotripsy; traditional open surgical treatment; taking out stone through a percutaneous nephroscope; and (5) treating by minimally invasive surgery.

The inventors found that the suction effect of the conventional soft sheath for suctioning stone debris after renal calculus (2cm or more) lithotripsy is not good because: the cross section of the passage of the negative pressure suction pipeline can not meet the requirement, the broken stone is easy to block when being sucked out by the negative pressure suction pipeline, the time spent in sucking the broken stone is long, the broken stone and blood clots can not be effectively sucked out, a plurality of operations are needed, and the physical burden and the economic burden of a patient are increased undoubtedly. In addition, the existing soft endoscope sheath needs to be internally provided with the suction assembly when the broken stone is sucked, so that the timeliness cannot be met, and the operation time is delayed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an integrated ureter soft sheath; this soft mirror sheath fill inlet channel and attract outlet conduit to form integratively, when inhaling the stone, can more effectively attract the rubble, and need not the installation and dismantle and attract the subassembly, directly pour by filling the inlet channel, carry out the negative pressure by attracting outlet conduit and attract, the operation is more convenient, saves the operation time.

The first purpose of this disclosure is to propose a flexible mirror sheath of ureter of integral type, in order to realize above-mentioned purpose, this disclosure adopts following technical scheme:

an integrated flexible ureteroscope sheath comprises a sheath tube, wherein the sheath tube is a hollow pipeline, a partition plate is arranged in the sheath tube to divide the hollow pipeline into a first perfusion water inlet pipeline and a first suction water outlet pipeline, and the first perfusion water inlet pipeline and the first suction water outlet pipeline are not communicated with each other; the baffle sets up along sheath pipe axial, and wherein first water inlet pipe that fills sets up first water inlet of filling in non-working end, first water inlet of filling with fill the washer pump intercommunication, first suction water pipeline sets up first negative pressure suction port in non-working end, first negative pressure suction port and negative pressure suction pump intercommunication.

As a further technical scheme, the cross-sectional area of the first suction and extraction water pipeline is larger than that of the first perfusion water inlet pipeline.

As a further technical scheme, two ends of the clapboard are fixedly connected with the inner side wall of the sheath tube.

In a preferred technical scheme, the sheath tube and the partition plate are of an integrated structure.

As a further technical scheme, the cross section of the separator is in a zigzag shape or a curved shape or a linear shape.

In the preferred technical scheme, the cross section of the partition plate is arc-shaped, and the cross section of the first perfusion water inlet pipeline is crescent-shaped.

As a further technical scheme, a first side hole is formed in the side portion of the working end of the first suction and extraction water pipeline, and a set distance is formed between the first side hole and the first perfusion water inlet pipeline; the side part of the working end of the first perfusion water inlet pipeline is provided with a second side hole, and the second side hole and the first suction water outlet pipeline have a set distance.

As a further technical scheme, a negative pressure adjusting port is arranged on the side part, adjacent to the non-working end, of the first suction and extraction water pipeline.

As a further technical scheme, the non-working end of the first suction and extraction water pipeline is provided with a negative pressure adjusting port, and the negative pressure adjusting port and the first negative pressure suction port are arranged at the end part of the non-working end of the first suction and extraction water pipeline in parallel.

As a further technical scheme, the non-working end of the first suction and extraction water pipeline is connected with an external member, and the external member is a multi-way pipeline.

As a further technical scheme, the non-working end of the first suction and extraction water pipeline is provided with a wide-diameter part, and the inner diameter size of the wide-diameter part is larger than that of the first suction and extraction water pipeline.

As a further technical scheme, a negative pressure adjusting port is arranged on the side part of the wide-diameter part.

In a further aspect, a negative pressure adjustment port is provided at an end of the wide diameter portion, and the negative pressure adjustment port and the first negative pressure suction port are provided in parallel at an end of the wide diameter portion.

As a further technical scheme, the end part of the wide-diameter part is connected with an external sleeve, and the external sleeve is a multi-way pipeline.

The second purpose of the present disclosure is to provide an integrated ureteral soft endoscope sheath, including the second that does not communicate with each other fills inlet channel and second and attracts outlet pipe way, and the second fills inlet channel and second attracts outlet pipe way to be hollow pipeline, and the second fills inlet channel and second and attracts outlet pipe way parallel arrangement each other and the two fixed connection, and wherein the second fills inlet channel and sets up the second at the non-working end and fills the water inlet, and the second attracts outlet pipe way sets up the second negative pressure suction port at the non-working end.

As a further technical scheme, the cross-sectional area of the second suction water outlet pipeline is larger than that of the second pouring water inlet pipeline.

As a further technical scheme, the second perfusion water inlet pipeline and the second suction water outlet pipeline are of an integrated structure.

As a further technical scheme, the second perfusion water inlet pipeline is arranged in or outside a pipe cavity of the second suction water outlet pipeline.

As a further technical scheme, the second perfusion water inlet pipeline and the second suction water outlet pipeline are both composed of a first pipe wall and a second pipe wall, and the first pipe wall and the second pipe wall are connected into a whole; the cross section of the first pipe wall is in a curve shape, and the cross section of the second pipe wall is in a straight line shape, a broken line shape or a curve shape; and the second pipe wall of the second filling water inlet pipeline is attached to and fixedly connected with the second pipe wall of the second suction water outlet pipeline.

As a further technical scheme, the cross section of the second pipe wall of the second perfusion water inlet pipeline and the second suction water outlet pipeline is arc-shaped, and the cross section of the second perfusion water inlet pipeline is crescent-shaped.

As a further technical scheme, a first side hole is arranged at the side part of the working end of the second suction water outlet pipeline, and a set distance is formed between the first side hole and the second perfusion water inlet pipeline; and a second side hole is formed in the side part of the working end of the second perfusion water inlet pipeline, and a set distance is formed between the second side hole and the second suction water outlet pipeline.

As a further technical scheme, a negative pressure adjusting port is arranged at the side part of the second suction water outlet pipeline, which is adjacent to the non-working end.

As a further technical scheme, the non-working end of the second suction water outlet pipeline is provided with a negative pressure adjusting port, and the negative pressure adjusting port and the second negative pressure suction port are arranged at the end part of the non-working end of the second suction water outlet pipeline in parallel.

As a further technical scheme, the non-working end of the second suction water outlet pipeline is connected with an external member, and the external member is a multi-way pipeline.

As a further technical scheme, the non-working end of the second suction water outlet pipeline is provided with a wide-diameter part, and the inner diameter size of the wide-diameter part is larger than that of the second suction water outlet pipeline.

As a further technical scheme, a negative pressure adjusting port is arranged on the side part of the wide-diameter part.

In a further aspect, a negative pressure adjustment port is provided at an end of the wide-diameter portion, and the negative pressure adjustment port and the second negative pressure suction port are provided in parallel at an end of the wide-diameter portion.

As a further technical scheme, the end part of the wide-diameter part is connected with an external sleeve, and the external sleeve is a multi-way pipeline.

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

the ureter soft endoscope sheath disclosed by the invention has the advantages that the filling water inlet pipeline and the suction water outlet pipeline are integrated, the end part of the suction water outlet pipeline is used for negative pressure suction, the filling water inlet pipeline is filled with flushing liquid, the suction water outlet pipeline is larger than the cross section area of the filling water inlet pipeline, the suction water outlet pipeline is used as a stone suction passage, the area of the negative pressure suction pipeline is ensured, broken stones and the like can be sucked out quickly and efficiently, the blockage of a suction pipe cannot be caused, and the clear field of vision under the endoscope is ensured.

This soft mirror sheath of ureter fills water inlet line and attracts the outlet conduit to form integratively, need not to pack again before inhaling the stone and attracts the subassembly, directly by filling the water inlet line and carrying out the lavage, by attract the outlet conduit inhale the stone can, the operation is more convenient, has saved the operation time.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic view of a flexible ureteroscope sheath disclosed in example 1;

FIG. 2 is a schematic cross-sectional view of a flexible ureteroscope sheath with a curved baffle as disclosed in example 1;

FIG. 3 is a schematic cross-sectional view of a flexible ureteroscope sheath with a curved baffle as disclosed in example 1;

FIG. 4 is a schematic cross-sectional view of a flexible ureteroscope sheath with a linear baffle as disclosed in example 1;

FIG. 5 is a schematic cross-sectional view of a flexible ureteroscope sheath with a dogleg-shaped baffle as disclosed in example 1;

FIG. 6 is a schematic view of another arrangement of the flexible ureteroscope sheath with the arc-shaped partition disclosed in example 1;

FIG. 7 is a schematic view showing a negative pressure regulating port provided at a side portion of the first suction and extraction water piping disclosed in embodiment 1;

FIG. 8 is a schematic sectional view showing a negative pressure regulating port provided at an end of the first suction/discharge water pipe disclosed in example 1;

fig. 9 is a schematic view of the sheath and the external sleeve disclosed in embodiment 1;

fig. 10 is a schematic view of a sheath provided with a wide-diameter portion disclosed in embodiment 1;

FIG. 11 is a schematic view of the embodiment 1, wherein a negative pressure regulating port is provided in the wide diameter portion;

fig. 12 is a schematic view of the sheath with the wide-diameter portion fitted with the external sleeve disclosed in embodiment 1;

fig. 13 is a schematic view of a ureteroscope sheath as disclosed in example 2;

fig. 14 is a schematic cross-sectional view of the second irrigation water inlet pipeline and the second suction water outlet pipeline of the flexible ureteroscope sheath disclosed in example 2, which are matched in an external fitting manner;

FIG. 15 is a schematic cross-sectional view of a second irrigation inlet line and a second aspiration outlet line of the flexible ureteroscope sheath of example 2 fitted together in an alternative external fitting manner;

fig. 16 is a schematic cross-sectional view of the second irrigation inlet conduit and the second aspiration outlet conduit of the flexible ureteroscope sheath of example 2 fitted together in a fitting manner;

FIG. 17 is a schematic cross-sectional view of an alternative fit-in-place manner of a second irrigation inlet conduit and a second aspiration outlet conduit of the flexible ureteroscope sheath disclosed in example 2;

FIG. 18 is a schematic cross-sectional view of still another fit of the second irrigation inlet line and the second aspiration outlet line of the flexible ureteroscope sheath disclosed in example 2 in an internal fit manner;

FIG. 19 is a schematic view showing a negative pressure regulating port provided on the side of the second water suction/discharge line disclosed in example 2;

FIG. 20 is a schematic sectional view of a second water suction/discharge line with a negative pressure regulating port at its end as disclosed in example 2;

FIG. 21 is a schematic view of the second water suction/discharge line and the external connection member disclosed in embodiment 2;

FIG. 22 is a schematic view of the second water suction/discharge pipe of the present embodiment 2 with a wide diameter portion;

FIG. 23 is a schematic view of the embodiment 2, wherein a negative pressure adjusting port is provided in the wide diameter portion;

fig. 24 is a schematic view of the second water suction/discharge pipe of embodiment 2 with a wide diameter portion matching with the external sleeve;

in the figure, 1 sheath pipe, 2 baffle, 3 first filling water inlet pipeline, 4 first suction water outlet pipeline, 5 first filling water inlet, 6 first negative pressure suction port, 7 filling pipeline, 8 connector, 9 first side hole, 10 second filling water inlet pipeline, 11 second suction water outlet pipeline, 12 second filling water inlet, 13 second negative pressure suction port, 14 first pipe wall, 15 second pipe wall, 16 second side hole, 17 negative pressure adjusting port, 18 wide-diameter part, 19 external member.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

For convenience of description, the words "up", "down", "left" and "right" in this disclosure, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate description of the disclosure and simplify description, rather than 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 construed as limiting the disclosure.

As the background art shows, the prior art has the disadvantages that in order to solve the technical problems, the application provides an integrated ureteral soft endoscope sheath.

Example 1:

the soft lens sheath disclosed in the present embodiment will be further described with reference to fig. 1 to 6;

as shown in fig. 1, an integrated ureteroscope sheath comprises a sheath tube 1, wherein the sheath tube 1 is a hollow pipeline, a partition plate 2 is arranged in the sheath tube 1 to divide the hollow pipeline into a first perfusion water inlet pipeline 3 and a first suction water outlet pipeline 4, and the first perfusion water inlet pipeline 3 and the first suction water outlet pipeline 4 are not communicated with each other; two ends of the clapboard 2 are fixedly connected with the inner side wall of the sheath tube 1; the baffle plate 2 is axially arranged along the sheath tube 1, wherein a first perfusion water inlet 5 is arranged at the non-working end of the first perfusion water inlet pipeline 3, the first perfusion water inlet is communicated with a perfusion flushing pump, a first negative pressure suction port 6 is arranged at the non-working end of the first suction water outlet pipeline 4, and the first negative pressure suction port is communicated with a negative pressure suction pump; the cross-sectional area of the first suction water outlet pipeline is larger than that of the first perfusion water inlet pipeline.

This openly adopts the form of inhaling while dashing to carry out the lavage attraction, and the suction line is difficult to take place to block up, and the field of vision is unclear or can effectively attract the clearance to go out the intrarenal rubble when carrying out the operation to great calculus in the art, can guarantee the continuity of operation, can once only do the operation, and need not to move the sword once more.

During the use, by the first washing liquid that inwards pours into of water intake pipe that pours into, carry out the negative pressure suction by first suction water pipeline, the washing liquid gets into by first water intake pipe through pouring into the flush pump, the water pipe way outflow is drawn out by first suction, sheath pipe and baffle form by first water intake pipe that pours into continuously and by the continuous lavage system that first suction water pipeline lasts the negative pressure suction, calculus in the completion art, foreign matters such as blood clot take out, make circulation such as liquid get up, high efficiency is with suction such as rubble and play, it is clear to guarantee the visual field under the mirror.

The working end of the sheath tube is the end which stretches into the kidney to operate, the other end of the sheath tube is a non-working end and a handheld end, and the first perfusion water inlet pipeline, the first suction water outlet pipeline and the working end of the partition plate are defined as the same as the working end of the sheath tube.

The first water inlet 5 and the washing pump accessible of filling of the first water inlet pipe 3 of filling can be filled 7 intercommunications with the filling line, and the mode that sets up of filling line 7 can be: the filling pipeline 7 is communicated with the first filling water inlet 5, and the filling pipeline is connected with the outer side wall of the sheath pipe and the partition plate in a sealing manner, so that the filling pipeline is communicated with the first filling water inlet pipeline.

Wash in liquid can flow to the kidney earlier after flowing out via first water inlet pipe way work end that pours into, just can draw the water pipe way by first suction to flow out when the negative pressure suction is worked, further extension wash liquid's circulation route, the effective area of washing of increase wash liquid has promoted the success rate of taking out of foreign matter such as calculus, clot in the art.

In a preferred embodiment, as shown in fig. 7, a negative pressure regulating port 17 is arranged at the side of the first suction water outlet pipeline 4, and the negative pressure regulating port 17 is arranged at the side of the first suction water outlet pipeline 4 adjacent to the non-working end. An adjusting knob can be arranged at the negative pressure adjusting opening, so that the negative pressure is controlled. Moreover, in the process of sucking the crushed stone under negative pressure, if the crushed stone is too large, the crushed stone can be blocked at the port of the working end of the first suction and extraction water pipeline 4, so that the effective suction of the crushed stone is influenced, and the negative pressure regulating port is blocked when the negative pressure suction is needed by arranging the negative pressure regulating port; when the broken stone blocks the working end port of the first suction water pipeline, the blocking of the negative pressure adjusting port is cancelled or the positive pressure is introduced inwards from the negative pressure adjusting port, so that the negative pressure in the first suction water pipeline 4 is adjusted, the broken stone can be separated from the working end port of the first suction water pipeline 4, the smoothness of the first suction water pipeline is recovered, and the broken stone suction is continued.

In the scheme of setting up negative pressure regulation mouth 17, negative pressure regulation mouth 17 and first negative pressure suction port 6 can exchange the use, and negative pressure regulation mouth 17 can regard as first negative pressure suction port to use, and first negative pressure suction port can regard as negative pressure regulation mouth to use, also can be connected the negative pressure suction pump by negative pressure regulation mouth and carry out the negative pressure suction even when using, and the first negative pressure suction port carries out the negative pressure regulation to first suction water pipeline.

In another preferred embodiment, as shown in fig. 8, the non-working end of the first suction and extraction water pipeline 4 is provided with a negative pressure regulating port 17, and the negative pressure regulating port 17 and the first negative pressure suction port 6 are arranged in parallel at the end part of the non-working end of the first suction and extraction water pipeline; as mentioned above, through the arrangement of the negative pressure adjusting port, when the port of the working end of the first suction water pipeline is blocked by the crushed stone, the crushed stone is separated from the port of the working end of the first suction water pipeline, so that the crushed stone suction is continued.

In another preferred embodiment, as shown in fig. 9, the non-working end of the sheath 1 is connected to the external connection kit 19, and when the connection is made, the first negative pressure suction port of the first suction and extraction water pipeline is connected to the external connection kit. The external connecting member is a multi-way pipeline, one pipeline opening of the multi-way pipeline is communicated with a first negative pressure suction port of the first suction water outlet pipeline, the other pipeline opening is used as the first negative pressure suction port for negative pressure suction, and one pipeline opening is used as a negative pressure adjusting port for negative pressure adjustment; in this embodiment, the external connection member is a three-way pipeline having three pipe intersections, one of the pipe intersections is connected to the non-working end of the sheath pipe, the other pipe intersection is used as a first negative pressure suction port for negative pressure suction, and the other pipe intersection is used as a negative pressure regulation port for negative pressure regulation; the three-way pipeline and the end part of the sheath pipe can be tightly connected through threads.

In a preferred embodiment, as shown in fig. 10, the non-working end of the sheath 1 is provided with a wide part 18, specifically, the wide part is provided at the non-working end of the first suction and extraction water pipeline, the wide part is in a pipeline form, and the inner diameter of the wide part is larger than that of the first suction and extraction water pipeline; the wide-diameter part can be an equal-diameter pipeline (not shown in the figure) or a reducing pipeline (as shown in the figure 10), the reducing pipeline is provided with a section of equal-diameter channel section from the end part of the non-working end of the sheath pipe to the direction of the working end and then is provided with a section of channel section with gradually reduced pipe diameter, and the size of the end part of the non-working end of the sheath pipe is larger than that of the end part of the working end.

By the setting of wide-diameter portion, can add the diameter of first suction water pipe way non-working end, avoid the rubble to plug up first negative pressure suction opening, the outside attraction of the rubble of being more convenient for.

When the wide-diameter part is arranged, the first negative pressure suction port and the negative pressure adjusting port can be arranged at the end port of the wide-diameter part at the same time, and the arrangement form of the first negative pressure suction port and the negative pressure adjusting port is the same as that shown in fig. 8, namely, the negative pressure adjusting port and the first negative pressure suction port are arranged at the end part of the wide-diameter part in parallel; one of the first negative pressure suction port and the negative pressure adjustment port may be provided at a side portion of the wide diameter portion, and the other of the first negative pressure suction port and the negative pressure adjustment port may be provided at an end portion of the wide diameter portion, as shown in fig. 11, which is a schematic view of the negative pressure adjustment port being provided at the side portion of the wide diameter portion.

As shown in fig. 12, when the wide diameter portion is provided, the external connection sleeve 19 may be provided at the end of the wide diameter portion, and the port of the wide diameter portion may be connected to the external connection sleeve when specifically connecting. The external connecting member is a multi-way pipeline, one pipeline mouth of the multi-way pipeline is communicated with the port of the wide-diameter part, the other pipeline mouth is used as a first negative pressure suction port for negative pressure suction, and one pipeline mouth is used as a negative pressure adjusting port for negative pressure adjustment; in this embodiment, the external connection kit is configured as a three-way pipeline having three pipe intersections, wherein one pipe intersection is connected to the end of the wide-diameter portion, the other pipe intersection is used as a first negative pressure suction port for negative pressure suction, and the other pipe intersection is used as a negative pressure regulation port for negative pressure regulation; the tee pipe and the end part of the wide-diameter part can be connected through threads in a fastening mode.

The length of the baffle plate 2 is less than that of the sheath pipe 1, and the working end of the baffle plate 2 is flush with that of the sheath pipe 1, as shown in fig. 1. The flow path of the irrigation liquid can be prolonged as much as possible.

The non-working end of the sheath tube 1 can be provided with a connector 8 which is connected with a negative pressure suction pump through the connector, and the connector can be provided with a gasket.

The sheath and the wall baffle may be of unitary construction. The sheath tube enters the operation from the natural pipeline of the human body to realize the non-invasive operation.

The sheath 1 may be circular in cross-section, as shown in fig. 2-5; or may be oblate, as shown in FIG. 6; the cross section of the partition board 2 can be in any shape as long as the partition board can be connected with the side wall of the sheath tube 1 to form a closed space, namely, the cross section of the partition board 2 can be in a zigzag shape as shown in fig. 5; or may be provided in a linear shape as shown in fig. 4; the partition plate 2 may also be configured to be curved, as shown in fig. 2, such as arc, oblate-like shape, or circular arc-like shape, as a preferred scheme of the present disclosure, and as shown in fig. 3 and 6, the cross section of the first irrigation water inlet pipeline is preferably crescent-shaped, and the cross section of the first suction water outlet pipeline is preferably oblate-like or circular; the cross section of the partition plate is set to be arc-shaped, so that the area difference between two areas of a first pouring water inlet pipeline and a first suction water outlet pipeline which are divided from the sheath pipe can be ensured to be large as much as possible, and the area of a suction channel is also large as much as possible.

When the clapboard is in a zigzag shape or a curve shape, the specific shape can be set according to the requirement. The cross sections of the sheath tube and the clapboard are the sections along the radial direction of the sheath tube.

The sheath pipe disclosed by the invention enters a kidney from a natural human body pipeline ureter, an instrument for carrying out intra-renal calculus lithotripsy operation enters a hollow pipeline of the sheath pipe to carry out soft lens operation, if an intra-renal blood clot is encountered or a calculus needs to be cleaned and sucked out, the surgical instrument is withdrawn, a first perfusion water inlet pipeline is used for perfusing washing liquid inwards, and a first suction water outlet pipeline is used for sucking out negative pressure to form a continuous lavage system. Therefore, other operations such as tapping on the body of a patient are not needed, noninvasive surgery can be really realized, the pain of the patient is relieved, and the patient can recover in a short time.

As shown in fig. 1, a first side hole 9 is formed in a side portion of the working end of the first suction and extraction water pipeline 4, and the first side hole 9 has a set distance from the first perfusion water inlet pipeline 3, that is, the first side hole is not formed at a joint of the first perfusion water inlet pipeline and the first suction and extraction water pipeline, and in a preferred embodiment, the first side hole may be formed in a side of the first suction and extraction water pipeline away from the first perfusion water inlet pipeline; the side part of the first suction and extraction water pipeline is provided with a first side hole, and crushed stone can enter the first suction and extraction water pipeline from the first side hole and is discharged.

A second side hole 16 is formed in the side portion of the working end of the first perfusion water inlet pipeline 3, a set distance is formed between the second side hole 16 and the first suction water outlet pipeline 4, namely the second side hole is not formed in the joint of the first perfusion water inlet pipeline and the first suction water outlet pipeline, and in the preferred scheme, the second side hole can be formed in the side, away from the first suction water outlet pipeline, of the first perfusion water inlet pipeline; the flushing liquid can flow out from the second side holes 16, so that the flow path of the flushing liquid is enlarged, and the gravels are better flushed.

The sheath pipe of the scheme of the disclosure can be further provided with a pressure measuring channel, the pressure measuring channel can be arranged in the first pouring water inlet pipeline or the first suction water outlet pipeline or between the first pouring water inlet pipeline and the first suction water inlet pipeline, and the pressure measuring channel is connected with an external pressure measuring instrument to measure the pressure. If pressure measurement is not needed, the pressure measurement channel can be closed, and the closing can adopt a form that the end head of the pressure measurement channel is blocked by a block body and other structures or any other forms capable of blocking the end head; when pressure measurement is needed, the plugging structure is taken out, the pressure measurement channel is kept smooth, and the plugging structure is connected with a pressure measurement instrument. Manometry is well known in the art and will not be described further herein.

Example 2:

the ureter soft endoscope sheath in this embodiment, as shown in fig. 13, includes a second perfusion water inlet pipeline 10 and a second suction water outlet pipeline 11 that are not communicated with each other, the second perfusion water inlet pipeline 10 and the second suction water outlet pipeline 11 are both hollow pipelines, the second perfusion water inlet pipeline 10 and the second suction water outlet pipeline 11 are arranged in parallel and fixedly connected to each other, wherein the second perfusion water inlet pipeline 10 is provided with a second perfusion water inlet 12 at a non-working end, the second perfusion water inlet is communicated with a perfusion flushing pump, the second suction water outlet pipeline 11 is provided with a second negative pressure suction port 13 at the non-working end, and the second negative pressure suction port is communicated with a negative pressure suction pump. The cross-sectional area of the second suction water outlet pipeline 11 is larger than that of the second filling water inlet pipeline 10, so that the area of the second suction water outlet pipeline is ensured, and the second suction water outlet pipeline is prevented from being blocked.

In a preferred embodiment, as shown in fig. 19, a negative pressure regulating port 17 is provided on the side of the second suction water outlet channel 11, and the negative pressure regulating port 17 is provided on the side of the second suction water outlet channel 11 adjacent to the non-working end. An adjusting knob can be arranged at the negative pressure adjusting opening, so that the negative pressure is controlled. Moreover, in the process of sucking the crushed stone under negative pressure, if the crushed stone is too large, the crushed stone may be blocked at the port of the working end of the second suction water outlet pipeline 11, so that the effective suction of the crushed stone is affected, and by arranging the negative pressure adjusting port, the negative pressure adjusting port is blocked when the negative pressure suction is needed; when the port of the working end of the second suction water outlet pipeline is blocked by the crushed stone, the blocking of the negative pressure adjusting port is cancelled or the negative pressure adjusting port is led in to the inside to adjust the negative pressure in the second suction water outlet pipeline 11, so that the crushed stone can be separated from the port of the working end of the second suction water outlet pipeline 11, and the crushed stone suction is continued.

In the scheme of arranging the negative pressure adjusting port 17, the negative pressure adjusting port 17 and the second negative pressure suction port 13 can be used interchangeably, that is, the negative pressure adjusting port 17 can be used as the second negative pressure suction port, the second negative pressure suction port can be used as the negative pressure adjusting port, even if the negative pressure adjusting port is connected with a negative pressure suction pump to perform negative pressure suction during use, the second negative pressure suction port performs negative pressure adjustment on the second suction water outlet pipeline.

In another preferred embodiment, as shown in FIG. 20, the non-working end of the second suction/discharge conduit 11 is provided with a negative pressure regulating port 17, and the negative pressure regulating port 17 and the second negative pressure suction port 13 are arranged in parallel at the end of the non-working end of the second suction/discharge conduit; as mentioned above, through the arrangement of the negative pressure adjusting port, when the port of the working end of the second suction water outlet pipeline is blocked by the crushed stone, the crushed stone is separated from the port of the working end of the second suction water outlet pipeline, so that the crushed stone suction is continued.

In another preferred embodiment, as shown in fig. 21, the non-working end of the second suction outlet conduit 11 is connected to the external sleeve 19, and when the non-working end is connected, the second negative pressure suction port of the second suction outlet conduit is connected to the external sleeve. The external connecting member is a multi-way pipeline, one pipeline opening of the multi-way pipeline is communicated with a second negative pressure suction port of a second suction water outlet pipeline, the other pipeline opening is used as the second negative pressure suction port for negative pressure suction, and one pipeline opening is used as a negative pressure adjusting port for negative pressure adjustment; in this embodiment, the external connection member is a three-way pipeline having three pipe intersections, one of the pipe intersections is connected to the non-working end of the second suction water outlet pipeline, the other pipe intersection serves as a second negative pressure suction port for negative pressure suction, and the other pipe intersection serves as a negative pressure regulation port for negative pressure regulation; the end part of the three-way pipeline and the end part of the second water sucking and discharging pipeline can be tightly connected through threads.

In a preferred embodiment, as shown in fig. 22, the non-working end of the second suction outlet pipe 11 is provided with a wide part 18, the wide part is in the form of a pipe, and the inner diameter of the wide part is larger than that of the second suction outlet pipe; the wide-diameter portion may be an equal-diameter pipeline (not shown in the figure) or a variable-diameter pipeline (as shown in fig. 22), the variable-diameter pipeline is provided with a section of equal-diameter channel section from the end portion of the non-working end of the second suction water outlet pipeline to the direction of the working end, and then is provided with a section of channel section with gradually reduced pipe diameter, that is, the size of the end portion of the non-working end of the second suction water outlet pipeline is larger than that of the end portion of the working end.

By the setting of wide diameter portion, can add the diameter that the second attracted outlet pipe way was not worked, avoid the rubble to block up second negative pressure suction opening, the outside attraction of the more convenient to rubble.

When the wide-diameter portion is provided, the second negative pressure suction port and the negative pressure adjusting port may be provided at the end port of the wide-diameter portion at the same time, and the arrangement form thereof is the same as that shown in fig. 20, that is, the negative pressure adjusting port and the second negative pressure suction port are provided in parallel at the end of the wide-diameter portion; one of the second negative pressure suction port and the negative pressure adjustment port may be provided at the side of the wide diameter portion, and the other may be provided at the end of the wide diameter portion, as shown in fig. 23, which is a schematic view of the negative pressure adjustment port being provided at the side of the wide diameter portion.

As shown in fig. 24, when the wide diameter portion is provided, the external connection sleeve 19 may be provided at the end of the wide diameter portion, and the port of the wide diameter portion may be connected to the external connection sleeve when specifically connecting. The external connecting member is a multi-way pipeline, one pipeline mouth of the multi-way pipeline is communicated with the port of the wide-diameter part, the other pipeline mouth is used as a second negative pressure suction port for negative pressure suction, and the other pipeline mouth is used as a negative pressure adjusting port for negative pressure adjustment; in this embodiment, the external connection kit is configured as a three-way pipeline having three pipe intersections, wherein one pipe intersection is connected to the end of the wide-diameter portion, the other pipe intersection is used as a second negative pressure suction port for negative pressure suction, and the other pipe intersection is used as a negative pressure regulation port for negative pressure regulation; the tee pipe and the end part of the wide-diameter part can be connected through threads in a fastening mode.

The second filling water inlet pipeline 10 and the second suction water outlet pipeline 11 may be integrally formed, or may be integrally formed by adhering or otherwise forming the sidewalls thereof.

The second perfusion water inlet pipeline 10 may be disposed outside the lumen of the second suction water outlet pipeline 11, as shown in fig. 14 and 15, which is an external fitting fixed type, the cross-sections of the second perfusion water inlet pipeline 10 in fig. 14 and 15 are both crescent-shaped, the cross-section of the second suction water outlet pipeline 11 in fig. 14 is oblate, and the cross-section of the second suction water outlet pipeline 11 in fig. 15 is circular; the second filling water inlet pipeline 10 may also be disposed in the lumen of the second suction water outlet pipeline 11, as shown in fig. 16, 17, and 18, i.e., it is an inner-fit fixed type, the cross sections of the second filling water inlet pipeline 10 in fig. 16, 17, and 18 are crescent-shaped, wherein the cross section of the second suction water outlet pipeline 11 in fig. 16 is circular, the cross section of the second suction water outlet pipeline 11 in fig. 17 is oblate-shaped, the pipeline between the second filling water inlet pipeline and the second suction water outlet pipeline is also oblate-shaped, the cross section of the second suction water outlet pipeline 11 in fig. 18 is oblate-shaped, and the pipeline between the second filling water inlet pipeline and the second suction water outlet pipeline is circular.

The second filling water inlet pipeline 10 and the second suction water outlet pipeline 11 are both composed of a first pipe wall 14 and a second pipe wall 15, the first pipe wall 14 and the second pipe wall 15 of the second filling water inlet pipeline 10 are connected into a whole, and the first pipe wall 14 and the second pipe wall 15 of the second suction water outlet pipeline 11 are connected into a whole; the cross section of the first pipe wall 14 is curved, preferably arc-shaped, and the cross section of the second pipe wall 15 can be any shape, such as straight line or fold line or curved, preferably arc-shaped; the second pipe wall of the second filling water inlet pipeline 10 is matched with the second pipe wall of the second suction water outlet pipeline 11 in shape, and the second pipe wall of the second filling water inlet pipeline 10 is attached and fixedly connected (can be connected by bonding) with the second pipe wall of the second suction water outlet pipeline 11. The cross section of the second filling water inlet pipeline 10 is preferably crescent-shaped, and the cross section of the second suction water outlet pipeline 11 is preferably circular or oblate, so as to ensure the area of the second suction water outlet pipeline and avoid the blockage of the second suction water outlet pipeline.

In this embodiment, the shape fitting means: when the second pipe wall of the second perfusion water inlet pipeline 10 is linear, the second pipe wall of the second suction water outlet pipeline 11 is also linear; when the second pipe wall of the second filling water inlet pipeline 10 is curved, the second pipe wall of the second suction water outlet pipeline 11 is also curved; when the second pipe wall of the second filling water inlet pipeline 10 is in a zigzag shape, the second pipe wall of the second suction water outlet pipeline 11 is also in a zigzag shape, and the second pipe wall can be clamped to be attached and bonded.

As shown in fig. 13, a first side hole 9 is formed at a side portion of the working end of the second suction water outlet pipeline 11, and the first side hole 9 and the second perfusion water inlet pipeline 10 have a set distance, that is, the first side hole is not formed at a joint of the second perfusion water inlet pipeline and the second suction water outlet pipeline, and in a preferred embodiment, the first side hole may be formed at a side of the second suction water outlet pipeline away from the second perfusion water inlet pipeline; the first side hole 9 is arranged at the side part of the second suction water outlet pipeline, and the gravels can also enter the second suction water outlet pipeline through the first side hole 9 and are discharged.

A second side hole 16 is formed in the side portion of the working end of the second perfusion water inlet pipeline 10, and a set distance is formed between the second side hole 16 and the second suction water outlet pipeline 11, that is, the second side hole is not formed in the joint of the second perfusion water inlet pipeline and the second suction water outlet pipeline, and in a preferred scheme, the second side hole can be formed in the side, away from the second suction water outlet pipeline, of the second perfusion water inlet pipeline; the flushing liquid can flow out from the second side holes 16, so that the flow path of the flushing liquid is enlarged, and the gravels are better flushed.

Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (26)

1. An integrated flexible ureteroscope sheath is characterized by comprising a sheath tube, wherein the sheath tube is a hollow pipeline, a partition plate is arranged in the sheath tube to divide the hollow pipeline into a first perfusion water inlet pipeline and a first suction water outlet pipeline, and the first perfusion water inlet pipeline and the first suction water outlet pipeline are not communicated with each other; the baffle sets up along sheath pipe axial, and wherein first water inlet pipe that pours sets up first water inlet of pouring in the non-working end, and first suction water pipeline sets up first negative pressure suction port in the non-working end.

2. The ureteroscope sheath of claim 1, wherein the first suction and drainage line has a cross-sectional area greater than the cross-sectional area of the first irrigation inlet line.

3. The ureteroscope sheath according to claim 1, wherein both ends of the partition are fixedly connected with the inner side wall of the sheath tube; the sheath pipe and the baffle plate are of an integrated structure.

4. The ureteroscope sheath according to claim 1, wherein the cross-sectional shape of the baffle is a fold line, a curve or a straight line.

5. The flexible ureteroscope sheath according to claim 1, wherein a first side hole is formed at the side of the working end of the first suction and drainage pipeline, and the first side hole is spaced from the first perfusion water inlet pipeline by a set distance; the side part of the working end of the first perfusion water inlet pipeline is provided with a second side hole, and the second side hole and the first suction water outlet pipeline have a set distance.

6. The ureteroscope sheath according to claim 1, wherein a negative pressure regulating port is provided at a side of the first suction and extraction water line adjacent to the non-working end.

7. The flexible ureteroscope sheath according to claim 1, wherein the non-working end of the first suction and extraction water pipeline is provided with a negative pressure adjusting port, and the negative pressure adjusting port and the first negative pressure suction port are arranged in parallel at the end part of the non-working end of the first suction and extraction water pipeline.

8. The flexible ureteroscope sheath of claim 1, wherein the non-working end of the first suction and drainage pipeline is connected with an external member, and the external member is a multi-way pipeline.

9. The ureteroscope sheath of claim 1, wherein the non-working end of the first suction and extraction water pipe is provided with a wide diameter portion, and the inner diameter of the wide diameter portion is larger than that of the first suction and extraction water pipe.

10. The ureteroscope sheath according to claim 9, wherein a negative pressure adjusting port is provided at a side of the wide-diameter portion.

11. The ureteroscope sheath according to claim 9, wherein the end of the wide-diameter portion is provided with a negative pressure adjustment port, and the negative pressure adjustment port and the first negative pressure suction port are arranged in parallel at the end of the wide-diameter portion.

12. The ureteroscope sheath of claim 9, wherein the end of the wide section is connected to an external sleeve, and the external sleeve is a multi-way tube.

13. The utility model provides an integral type ureter soft mirror sheath, characterized by includes that the second that does not communicate with each other fills inlet channel and second attracts outlet pipe way, and the second fills inlet channel and second attracts outlet pipe way to be hollow pipeline, and the second fills inlet channel and second attracts outlet pipe way parallel arrangement each other and the two fixed connection, and wherein the second fills the inlet channel and sets up the second at the non-working end and fills the water inlet, and the second attracts outlet pipe way to set up the second negative pressure in the non-working end and attracts the mouth.

14. The ureteroscope sheath of claim 13, wherein the cross-sectional area of the second aspiration outlet conduit is greater than the cross-sectional area of the second irrigation inlet conduit.

15. The flexible ureteroscope sheath of claim 13, wherein the second irrigation inlet conduit and the second aspiration outlet conduit are of a one-piece construction.

16. The ureteroscope sheath of claim 13, wherein the second irrigation inlet line is disposed within or outside the lumen of the second aspiration outlet line.

17. The flexible ureteroscope sheath of claim 16, wherein the second irrigation water inlet pipeline and the second suction water outlet pipeline are both composed of a first pipe wall and a second pipe wall, and the first pipe wall and the second pipe wall are integrally connected; the cross section of the first pipe wall is in a curve shape, and the cross section of the second pipe wall is in a straight line shape, a broken line shape or a curve shape; and the second pipe wall of the second filling water inlet pipeline is attached to and fixedly connected with the second pipe wall of the second suction water outlet pipeline.

18. The flexible ureteroscope sheath of claim 17, wherein the cross section of the second wall of the second irrigation water inlet line and the second suction water outlet line is arc-shaped, and the cross section of the second irrigation water inlet line is crescent-shaped.

19. The flexible ureteroscope sheath of claim 13, wherein a first side hole is formed at the side of the working end of the second suction water outlet pipeline, and the first side hole is spaced from the second irrigation water inlet pipeline by a set distance; and a second side hole is formed in the side part of the working end of the second perfusion water inlet pipeline, and a set distance is formed between the second side hole and the second suction water outlet pipeline.

20. The ureteroscope sheath according to claim 13, wherein a negative pressure regulating port is provided at a side portion of the second suction outlet line adjacent to the non-working end.

21. The flexible ureteroscope sheath according to claim 13, wherein the non-working end of the second suction/discharge conduit is provided with a negative pressure regulating port, and the negative pressure regulating port and the second negative pressure suction port are arranged in parallel at the end of the non-working end of the second suction/discharge conduit.

22. The flexible ureteroscope sheath of claim 13, wherein the non-working end of the second suction and water outlet pipeline is connected with an external sleeve, and the external sleeve is a multi-way pipeline.

23. The ureteroscope sheath according to claim 13, wherein the non-working end of the second aspiration outlet conduit is provided with a wide portion, and the inner diameter of the wide portion is larger than that of the second aspiration outlet conduit.

24. The ureteroscope sheath of claim 23, wherein the side of the wide-diameter portion is provided with a negative pressure regulating port.

25. The ureteroscope sheath according to claim 23, wherein the end of the wide-diameter portion is provided with a negative pressure adjustment port, and the negative pressure adjustment port and the second negative pressure suction port are arranged in parallel at the end of the wide-diameter portion.

26. The ureteroscope sheath of claim 23, wherein the end of the wide section is connected to an external sleeve, and the external sleeve is a multi-way tube.

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