CN216496986U - Flexible sheath of expandable ureteroscope channel - Google Patents

Abstract

The utility model discloses an expandable ureteroscope channel soft sheath which comprises a plurality of strip-shaped expansion bags, wherein the length directions of the expansion bags are sequentially connected, the cross sections of the expansion bags are annular, one side of the inner wall of an annular channel formed by the expansion bags is connected with an arc-shaped fixing plate, the length direction of the arc-shaped fixing plate is parallel to the length direction of the expansion bags, the rear end of each expansion bag is connected with a medium channel, one ends of the medium channels, far away from the expansion bags, are connected with an input pipe, the input pipe and the medium channels are in a cage-shaped structure, the expansion bags are in a contraction state before use, the arc-shaped fixing plate and the expansion bags are simultaneously inserted into a ureter, and expansion media are synchronously input into the expansion bags through the input pipe, can realize the synchronous expansion of expansion bag, the expansion bag inflation is expanded ureter, need not carry out the expansion operation in advance, can improve operation efficiency, reduces the operation risk.

Description

Flexible sheath of expandable ureteroscope channel

Technical Field

The utility model relates to the field of medical surgical instruments, in particular to an expandable ureteroscope channel soft sheath.

Background

Ureteroscopes are applied to clinical treatment of ureters and kidney diseases more and more widely, hard ureteroscopes are mostly applied in clinic, since the ureteroscopes have to pass through the urethra, the urethra of female patients is short, the damage probability in the operation process is low, but the urethra of male patients is long, the urethra is easy to be damaged by pulling back and forth in the operation and movement process of the ureteroscopes, and reports are made at home and abroad, according to the statistics, the ureteroscopes are damaged by the operation of the ureteroscopes, and the incidence rate of stenosis after the urethra damage is 5-7%, wherein most of men use ureteroscopes, at present, a ureteroscope sheath is firstly placed in the ureter, and then the ureteroscopes pass through the ureteroscope sheath along the ureteroscope sheath, so that the intrarenal pressure can be effectively reduced, the calculus removing rate can be improved, but the diameter of the existing flexible sheath is large and is a fixed diameter, and the resistance is large because the ureteroscopes are directly inserted, the ureter wall can be damaged, the intubation is difficult, the ureter wall generally needs to be pre-expanded by using a preoperative stent implantation operation before the intubation, a channel soft sheath is implanted after the ureter is expanded, the use pain of a patient can be increased, an inner core is needed in the existing soft sheath, the ureter or a renal pelvis can be damaged in the operation, bleeding or perforation can be caused, the operation risk and the operation time can be increased, the diameter of the existing ureter soft sheath is larger and is a fixed diameter, ureter mucosa can be stripped when the sheath is pushed, and the operation effect can be influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides the expandable ureteroscope channel soft sheath which has the advantages of simple structure, no need of pre-expansion and capability of improving the operation effect.

The technical scheme of the utility model is as follows:

the utility model provides a soft sheath of expandable ureteroscope passageway, includes the expansion bag of many rectangular shapes, many expansion bag length direction links to each other in proper order, many the transversal annular of personally submitting of expansion bag, many the arc fixed plate is connected to the annular passage inner wall one side that the expansion bag formed, arc fixed plate length direction is parallel with expansion bag length direction, every expansion bag rear end department connects the medium passageway, and is a plurality of the input tube is connected to the one end that the expansion bag was kept away from to the medium passageway, the input tube is the cage type structure with a plurality of medium passageways.

The input pipe is coaxial with the arc-shaped fixing plate.

And the inner walls of the arc-shaped fixing plate and the expansion capsule are uniformly provided with ultra-smooth coatings.

And a lubricating coating is uniformly arranged on the outer wall of each expansion capsule.

The medium introduced into the medium channel is water.

The arc-shaped fixing plate and the expansion bag are of an integrated structure.

The utility model has the beneficial effects that:

1. the expansion bags are arranged on the outer wall of the arc-shaped fixing plate in the circumferential direction, the rear ends of the expansion bags are connected with the medium channels, the medium channels of the expansion bags are simultaneously input into the pipe, the expansion medium can be synchronously injected into the expansion bags through the input pipe, the expansion bags are synchronously expanded, the expansion bags shrink when not in use, the expansion bags and the arc-shaped fixing plate can be easily inserted into a ureter, the ureter is expanded through the expansion bags, stent implantation is not needed, the operation risk can be effectively reduced, the operation efficiency is improved, and the input pipe and the medium channels are in a cage-shaped structure, so that the operation of instruments such as guide wires and the like introduced into the arc-shaped fixing plate cannot be influenced;

2. the input tube is coaxial with the arc-shaped fixing plate, so that the synchronism and stability of media introduced into the plurality of medium channels can be ensured, and the synchronism of expansion of the expansion capsule can be ensured;

3. the inner wall of the arc-shaped fixed plate is provided with the ultra-smooth coating, so that instruments can enter the arc-shaped fixed plate conveniently, the arc-shaped fixed plate is prevented from being scratched by the instrument clamp, and the operation safety can be improved;

4. the outer wall of the expansion bag is provided with a lubricating coating, so that the expansion bag can conveniently enter the ureter, and the expansion bag is placed to damage the wall of the ureter in the process of intubation;

5. the medium is introduced into the medium channel and is water, so that the expansion reliability and the use safety of the expansion capsule can be ensured;

6. the arc-shaped fixing plate and the expansion bag are of an integrated structure, so that the expansion bag can be prevented from being separated from the arc-shaped fixing plate, and the use safety and the use reliability can be ensured.

Drawings

FIG. 1 is a front view of an expandable ureteroscope access sheath according to embodiments of the present invention;

fig. 2 is a right side view of an expandable ureteroscope access sheath according to embodiments of the present invention.

Description of reference numerals:

1 is an expansion capsule, 2 is an arc-shaped fixing plate, 3 is a medium channel, and 4 is an input tube.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings.

Example (b):

as shown in fig. 1-2, an expandable ureteroscope channel soft sheath comprises a plurality of strip-shaped expansion bags 1, wherein the expansion bags 1 are sequentially connected in the length direction, the cross sections of the expansion bags 1 are annular, one side of the inner wall of an annular channel formed by the expansion bags 1 is connected with an arc-shaped fixing plate 2, the length direction of the arc-shaped fixing plate 2 is parallel to the length direction of the expansion bags 1, the rear end of each expansion bag 1 is connected with a medium channel 3, one end, away from the expansion bags 1, of each medium channel 3 is connected with an input pipe 4, and the input pipe 4 and the medium channels 3 are in a cage-shaped structure.

The working principle of the technical scheme is as follows:

when the ureteroscope operation is not used, the expansion bag 1 collapses around the arc-shaped fixing plate 2 in a contraction state, before the ureteroscope operation is needed, the arc-shaped fixing plate 1 is communicated with the soft expansion bag 2 and is inserted into a ureter, an expansion medium is introduced into the medium channel 3 of each expansion bag 1 along the input pipe 4 through the input pipe 4, the expansion bag 1 is synchronously expanded to form an annular channel, the ureter is simultaneously expanded, the follow-up ureteroscope operation is convenient, after the operation is finished, the expansion medium in the expansion bag 1 is extracted, the expansion bag 1 collapses on the arc-shaped fixing plate 2 in a contraction state, the arc-shaped fixing plate 2 is extracted, the operation risk can be reduced, and the operation efficiency is improved.

The input tube 4 is coaxial with the arc-shaped fixing plate 2, so that the synchronism and stability of media introduced into a plurality of medium channels can be ensured, and the synchronism of expansion of the expansion sac can be ensured.

The inner walls of the arc-shaped fixed plate 2 and the expansion capsule 1 are uniformly provided with the ultra-smooth coatings, so that instruments can enter the ultra-smooth coatings conveniently, the instruments are prevented from being stuck and scratched on the arc-shaped fixed plate, and the operation safety can be improved.

The outer wall of each expansion bag 1 is uniformly provided with a lubricating coating, so that the expansion bags can conveniently enter the ureter, and the expansion bags are placed to damage the wall of the ureter in the intubation process.

The medium which is introduced into the medium channel 3 is water, so that the expansion reliability and the use safety of the expansion capsule can be ensured.

The arc-shaped fixing plate 2 and the expansion bag 1 are of an integrated structure, so that the expansion bag can be prevented from being separated from the arc-shaped fixing plate, and the use safety and the use reliability can be ensured.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (6)

1. The utility model provides a soft sheath of expandable ureteroscope channel, its characterized in that, expansion bag (1) including many rectangular shapes, many expansion bag (1) length direction links to each other in proper order, many expansion bag (1) is transversal personally submits the annular, many annular channel inner wall one side that expansion bag (1) formed sets up ARC fixation plate (2), ARC fixation plate (2) length direction is parallel with expansion bag (1) length direction, every expansion bag (1) rear end department connects medium passageway (3), and is a plurality of input tube (4) is connected to the one end that expansion bag (1) was kept away from in medium passageway (3), input tube (4) are the cage type structure with a plurality of medium passageway (3).

2. The expandable ureteroscope access sheath according to claim 1, wherein the input tube (4) is coaxial with the arc-shaped fixing plate (2).

3. The expandable ureteroscope channel soft sheath according to claim 1, wherein the inner walls of the arc-shaped fixing plate (2) and the expansion balloon (1) are uniformly provided with ultra-smooth coatings.

4. An expandable ureteroscope access sheath according to claim 3, wherein the outer wall of each expansion balloon (1) is uniformly provided with a lubricating coating.

5. An expandable ureteroscope channel soft sheath according to claim 1, characterized in that the medium introduced into the medium channel (3) is water.

6. The expandable ureteroscope channel soft sheath according to claim 1, wherein the arc-shaped fixing plate (2) and the expansion balloon (1) are of an integral structure.

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