CN114642482A

CN114642482A - Recoverable self-expandable ureter soft endoscope sheath

Info

Publication number: CN114642482A
Application number: CN202210248485.0A
Authority: CN
Inventors: 蓝建华
Original assignee: Guangan Peoples Hospital
Current assignee: Guangan Peoples Hospital
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-06-21

Abstract

The invention discloses a recoverable self-expandable ureteroscope sheath, which belongs to the technical field of medical instruments and comprises a mounting seat, wherein a through hole is formed in the middle of the mounting seat, return springs are uniformly fixed on the inner walls of the through holes, sheath wall plates are fixed on the return springs, the sheath wall plates are mutually attached, air cavities are formed in the sheath wall plates, and strip-shaped pistons are arranged at two ends in the air cavities in a sliding manner. According to the flexible endoscope sheath, the flexible endoscope sheath composed of the four sheath wall plates, the air cavity in the sheath wall plates, the strip-shaped piston and the connecting rod can be expanded and contracted by filling air into the air cavity in the using process, and the flexible endoscope sheath can be bent due to the flexible characteristic of the PVC flexible endoscope sheath, so that ureteral mucosa damage, bleeding and perforation in the operation process are effectively avoided, the burden and medical cost of a patient are reduced, the practicability is higher, and the use is more convenient.

Description

Recoverable self-expandable ureter soft endoscope sheath

Technical Field

The invention relates to a flexible ureteroscope sheath, in particular to a recyclable self-expandable flexible ureteroscope sheath, and belongs to the technical field of medical instruments.

Background

Transurethral soft ureteroscope lithotripsy is a minimally invasive surgery mode for treating kidney stones, and is widely applied in clinic, a soft ureteroscope sheath is a consumable material commonly used in the soft ureteroscope lithotripsy, has a certain play, is commonly 12/14F or 14/16F, has an inner diameter of a normal ureter of about 3-5mm, and clinically, most patients cannot complete the soft ureteroscope lithotripsy in one stage because a ureter is not expanded, the soft ureteroscope sheath is difficult to place, the flexible ureteroscope sheath is moved forcefully, ureteroscope mucosa injury, bleeding, perforation and the like are easily caused, and secondary operations are often needed.

The ureter soft endoscope sheath in the prior art has the following problems:

1. the model is fixed, the expansion and the recovery cannot be realized, and the operation is difficult;

2. the ureter soft endoscope sheath is made of hard materials, and is difficult to place when the ureter is narrow, twisted and other conditions are not good, so that the operation is difficult to complete;

the recyclable self-expandable ureter soft endoscope sheath is designed for optimizing the problems.

Disclosure of Invention

The invention mainly aims to provide a recoverable self-expandable ureteroscope sheath, wherein the flexible ureteroscope sheath is formed by four groups of sheath wall plates, an air cavity inside the sheath wall plates, a strip-shaped piston and a connecting rod, so that the flexible ureteroscope sheath can be expanded and contracted by filling air into the air cavity in the using process, and can be bent by virtue of the soft characteristic of the PVC flexible ureteroscope sheath, the injury, bleeding and perforation of a ureteroscope mucous membrane in the operation process are effectively avoided, the burden and the medical cost of a patient are reduced, the practicability is higher, the use is more convenient, the arrangement of an inflation mechanism formed by a fixed tube external sleeve, an annular piston, an adjusting ring and a fixed rod can control the up-and-down movement of the annular piston by rotating the adjusting ring, the air is filled and exhausted into the air cavity, and the operation of the device is more convenient.

The purpose of the invention can be achieved by adopting the following technical scheme:

recoverable flexible mirror sheath of formula ureter of expanding certainly, including the mount pad, the through-hole has been seted up to the intermediate position department of mount pad, the inner wall of through-hole evenly is fixed with reset spring, all be fixed with the sheath wallboard on the reset spring, laminate each other between the sheath wallboard, the air cavity has all been seted up to the inside of sheath wallboard, the inside both ends of air cavity all slide and are provided with bar piston, two sets of be fixed with the connecting rod between the bar piston of air cavity inside, the top of mount pad is fixed with fixed pipe, the outside of fixed pipe is provided with inflating mechanism.

Preferably: the manufacturing material of sheath wallboard is PVC, the sheath wallboard is provided with four groups, and the shape of sheath wallboard all is the arc, the internal diameter of sheath wallboard is the same.

Preferably: the inflation mechanism comprises a sleeve, an annular piston and an adjusting ring, the sleeve is fixed at the top of the mounting seat, the sleeve is sleeved outside the fixed pipe, the annular piston is arranged between the fixed pipe and the sleeve in a sliding mode, a fixed rod is uniformly fixed at the top of the annular piston, the adjusting ring is installed on the fixed pipe in a threaded mode, the top end of the fixed rod is connected with the adjusting ring in a sliding mode, and a capillary tube is arranged between the bottom of the sleeve and an air cavity.

Preferably: the dead lever is provided with four groups, and the distance between adjacent dead lever is the same.

Preferably: annular spout has been seted up to the bottom of adjustable ring, the inside of annular spout evenly is provided with the slider, fixed connection between the top of dead lever and the slider.

Preferably, the following components: and anti-skidding grooves are uniformly formed in the outer side of the adjusting ring.

Preferably: anti-slip pads are symmetrically arranged on the outer side of the sleeve, and anti-slip lines are arranged on the anti-slip pads.

The invention has the beneficial effects that:

according to the recyclable self-expandable ureteral soft endoscope sheath, due to the arrangement of the soft endoscope sheath consisting of the four sheath wall plates, the air cavities in the sheath wall plates, the bar-shaped pistons and the connecting rods, the soft endoscope sheath can be expanded and contracted by filling air into the air cavities in the using process, and can be bent due to the soft characteristic of the PVC soft endoscope sheath, so that ureteral mucosa damage, bleeding and perforation in the operation process are effectively avoided, the burden of a patient and the medical cost are reduced, the practicability is higher, and the use is more convenient;

the setting of the inflation mechanism that fixed pipe outside sleeve, annular piston, adjustable ring and dead lever are constituteed can control reciprocating of annular piston through the rotation to the adjustable ring, aerifys and exhausts the inside of air cavity for the operation of device is more convenient.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is an expanded cross-sectional view of the end of the soft lens sheath of the present invention;

FIG. 3 is a close-up cross-sectional view of the end of the soft lens sheath of the present invention;

FIG. 4 is an inflator configuration of the present invention.

In the figure: 1. a mounting seat; 2. a through hole; 3. a return spring; 4. a sheath wall plate; 5. an air cavity; 6. a bar-shaped piston; 7. a connecting rod; 8. a fixed tube; 9. an inflation mechanism; 10. a sleeve; 11. an annular piston; 12. a capillary tube; 13. an adjusting ring; 14. fixing the rod; 15. an annular chute; 16. a slide block.

Detailed Description

In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the following examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

Example one

As shown in fig. 1-4, the present embodiment provides a recoverable self-expandable ureteroscope sheath, including a mounting seat 1, a through hole 2 has been opened at the intermediate position of mounting seat 1, an inner wall of through hole 2 is uniformly fixed with a return spring 3, all be fixed with sheath wallboard 4 on return spring 3, laminate each other between sheath wallboard 4, air cavity 5 has all been opened in sheath wallboard 4's inside, both ends inside air cavity 5 all slide and are provided with bar piston 6, be fixed with connecting rod 7 between the bar piston 6 inside two sets of air cavities 5, the top of mounting seat 1 is fixed with fixed tube 8, the outside of fixed tube 8 is provided with inflating mechanism 9, the preparation material of sheath wallboard 4 is PVC, sheath wallboard 4 is provided with four sets, and sheath wallboard 4's shape all is the arc, the internal diameter of sheath wallboard 4 is the same.

In the using process, the soft lens consisting of the four groups of sheath wall plates 4 is sheathed on the guide wire, and after entering the renal pelvis under the guidance of the guide wire, the gas is filled into the air cavity 5 by utilizing the inflating mechanism 9, the pressure in the air cavity 5 is increased, the two groups of strip-shaped pistons 6 are pushed to move, the sheath wall plates 4 are separated, and the soft lens sheath expands to expand the ureter.

Example two

In this embodiment, as shown in fig. 1 to 4, the inflation mechanism 9 includes a sleeve 10, an annular piston 11 and an adjusting ring 13, the sleeve 10 is fixed on the top of the mounting seat 1, the sleeve 10 is sleeved on the outer side of the fixed pipe 8, the annular piston 11 is slidably disposed between the fixed pipe 8 and the sleeve 10, a fixed rod 14 is uniformly fixed on the top of the annular piston 11, the adjusting ring 13 is threadedly mounted on the fixed pipe 8, the top end of the fixed rod 14 is slidably connected with the adjusting ring 13, and a capillary 12 is disposed between the bottom of the sleeve 10 and the air cavity 5.

In the inflation process, one hand holds the outer side of the sleeve 10, the other hand rotates the adjusting ring 13 to control the downward movement of the adjusting ring 13, so that the gas between the fixed tube 8 and the inner part of the sleeve 10 enters the inner part of the gas cavity 5 through the capillary tube 12, when the soft lens sheath is recovered, the upward movement of the adjusting ring 13 is controlled to discharge the gas in the gas cavity 5, and the soft lens sheath is reset.

In the present embodiment, the fixing bars 14 are provided in four groups, and the distances between the adjacent fixing bars 14 are the same.

With the four sets of fixing rods 14, it is possible to ensure smooth up and down movement of the annular piston 11 when rotating the adjusting ring 13.

In this embodiment, the bottom of the adjusting ring 13 is provided with an annular sliding groove 15, the inside of the annular sliding groove 15 is uniformly provided with sliding blocks 16, and the top of the fixing rod 14 is fixedly connected with the sliding blocks 16.

By utilizing the fixed connection between the sliding block 16 and the fixed rod 14 and the sliding connection between the sliding block 16 and the annular sliding groove 15, the pressing and dragging effects on the fixed rod 14 can be ensured when the adjusting ring 13 is lifted.

In this embodiment, the outer side of the adjusting ring 13 is uniformly provided with anti-slip grooves.

By utilizing the anti-slip groove on the adjusting ring 13, the finger can be prevented from sliding when rotating, and the operation is more convenient.

In this embodiment, the outer side of the sleeve 10 is symmetrically provided with anti-slip pads, and the anti-slip pads are provided with anti-slip lines.

Utilize the slipmat, stability when can increase handheld.

The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.

Claims

1. Recoverable flexible mirror sheath of formula ureter of expanding certainly, its characterized in that: including mount pad (1), through-hole (2) have been seted up to the intermediate position department of mount pad (1), reset spring (3) have evenly been fixed to the inner wall of through-hole (2), all be fixed with sheath wallboard (4) on reset spring (3), laminate each other between sheath wallboard (4), air cavity (5) have all been seted up to the inside of sheath wallboard (4), the both ends of air cavity (5) inside all slide and are provided with bar piston (6), two sets of be fixed with connecting rod (7) between bar piston (6) of air cavity (5) inside, the top of mount pad (1) is fixed with fixed pipe (8), the outside of fixed pipe (8) is provided with inflates mechanism (9).

2. The retrievable self-expandable ureteroscopy sheath of claim 1, wherein: the sheath wall plates (4) are made of PVC, four groups of sheath wall plates (4) are arranged, the sheath wall plates (4) are all arc-shaped, and the inner diameters of the sheath wall plates (4) are the same.

3. The retrievable self-expandable ureteroscopy sheath of claim 1, wherein: aerify mechanism (9) including sleeve (10), annular piston (11) and adjustable ring (13), the top at mount pad (1) is fixed in sleeve (10), sleeve (10) cover is established in the outside of fixed pipe (8), it is provided with annular piston (11) to slide between fixed pipe (8) and sleeve (10), the top of annular piston (11) evenly is fixed with dead lever (14), fixed pipe (8) are gone up the screw thread and are installed adjustable ring (13), sliding connection between the top of dead lever (14) and adjustable ring (13), be provided with capillary (12) between the bottom of sleeve (10) and air cavity (5).

4. The retrievable self-expandable ureteroscopy sheath of claim 3, wherein: the fixing rods (14) are provided with four groups, and the distances between the adjacent fixing rods (14) are the same.

5. The retrievable self-expandable ureteroscopy sheath of claim 4, wherein: annular spout (15) have been seted up to the bottom of adjustable ring (13), the inside of annular spout (15) evenly is provided with slider (16), fixed connection between the top of dead lever (14) and slider (16).

6. The retrievable self-expandable ureteroscopy sheath of claim 5, wherein: anti-skidding grooves are uniformly formed in the outer side of the adjusting ring (13).

7. The retrievable self-expandable ureteroscopy sheath of claim 3, wherein: the outer side of the sleeve (10) is symmetrically provided with anti-slip pads, and anti-slip lines are arranged on the anti-slip pads.