CN215458255U

CN215458255U - Percutaneous kidney minimally invasive dilation drainage kit

Info

Publication number: CN215458255U
Application number: CN202121141387.4U
Authority: CN
Inventors: 阳鑫; 曾思达
Original assignee: Shenzhen Huixinuo Technology Co ltd
Current assignee: Shenzhen Huixinuo Technology Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-01-11
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses a percutaneous renal minimally invasive dilation drainage kit, which comprises a dilation tube and a sleeve, wherein the dilation tube comprises a dilation tube body and a joint connected with one end of the dilation tube body; the sleeve is sleeved outside the expansion pipe body and comprises a sleeve pipe body and a tearing part arranged on the sleeve pipe body, wherein the thickness of the pipe wall of the sleeve pipe body is less than or equal to 0.3mm, the sleeve pipe body comprises a flexible hose opening, the inner diameter of the sleeve pipe body is equal to the diameter of the expansion pipe body, and the elasticity of the sleeve pipe body is greater than that of the expansion pipe body. When the urinary surgery crushed stone is taken out, the mouth of the flexible sleeve and the tube body deform under stress, so that part of crushed stone with larger section length can smoothly pass through the sleeve channel, and the sleeve tube body can restore to the original shape after the crushed stone is taken out.

Description

Percutaneous kidney minimally invasive dilation drainage kit

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a percutaneous minimally invasive renal dilation drainage kit.

Background

A percutaneous renal minimally invasive dilation drainage kit is mainly used for clinically dilating and establishing a channel when a percutaneous renal puncture dilation drainage and endoscopic surgery instrument for renal calculus or hydronephrosis patients is put in.

When renal calculus is treated by urinary surgery, a proper percutaneous renal minimally invasive dilation drainage kit needs to be used for dilation because a human ureter is narrow, an operation channel is established, and an endoscope, a laser optical fiber, a calculus removing instrument or an operation cable and the like are placed in the operation channel for calculus breaking and removing.

However, the percutaneous kidney minimally invasive dilation drainage kit in the prior art has insufficient structure and function, so that the cannula tube body is hard, the channel is difficult to deform, and in the stone removing process, because the crushed stones are uneven in size and irregular in shape, the crushed stones can not smoothly enter and pass through the cannula channel, so that the operation of repeatedly crushing the stones and removing the stones is required for many times in the operation process of a doctor, the operation time is prolonged, the treatment efficiency is influenced, and the ureter of a patient is easily damaged.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a percutaneous minimally invasive renal dilation drainage kit, which aims to solve the problem that the percutaneous minimally invasive renal dilation drainage kit in the prior art is simple in structure and difficult to operate.

The embodiment of the utility model provides a percutaneous minimally invasive renal dilation drainage kit, which comprises a dilation tube and a sleeve, wherein the dilation tube comprises a dilation tube body and a joint connected with one end of the dilation tube body; the sleeve is sleeved outside the expansion pipe body and comprises a sleeve pipe body and a tearing part arranged on the sleeve pipe body, wherein the thickness of the pipe wall of the sleeve pipe body is less than or equal to 0.3mm, the sleeve pipe body comprises a flexible hose opening, the inner diameter of the sleeve pipe body is equal to the diameter of the expansion pipe body, and the elasticity of the sleeve pipe body is greater than that of the expansion pipe body.

Wherein the tear feature is disposed proximate to a distal end of the cannula body.

Wherein, tear the part and be two hand (hold) sheath pipes.

The sleeve pipe body is provided with a sleeve pipe channel, and the sleeve pipe body is tightly combined with the expansion pipe body.

Wherein the cannula proximal end has a tapered port.

Wherein, the near end of the expansion pipe body is provided with a tip part.

Wherein the joint of the expansion pipe is a luer locking type joint.

According to the technical scheme of the utility model, when the crushed stone is taken out in the urinary surgery, the opening of the flexible sleeve and the tube body deform under stress, so that part of crushed stone with larger section length can smoothly pass through the sleeve channel, and after the crushed stone is taken out, the sleeve tube body can recover the original shape. Therefore, repeated operation of doctors can be reduced, the operation time is shortened, the operation risk is reduced, and the damage to the ureter of a patient is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

FIG. 1 is a schematic view of a percutaneous minimally invasive renal dilation drainage kit according to an embodiment of the utility model;

FIG. 2 is a schematic view of a stent structure of a percutaneous minimally invasive renal dilation drainage kit according to an embodiment of the utility model;

FIG. 3 is a schematic structural view of a cannula of a percutaneous renal minimally invasive dilation drainage kit according to an embodiment of the utility model;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic view of the percutaneous renal minimally invasive dilation drainage kit according to the embodiment of the utility model, when gravels with larger cross-sectional lengths are taken out through the flexible sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. 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 invention.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, a percutaneous minimally invasive renal dilation drainage kit provided according to an embodiment of the utility model includes: an expansion tube 1 and a sleeve 2. The expansion pipe 1 comprises an expansion pipe body 11, the expansion pipe body 11 is provided with a near end and a far end, the near end of the expansion pipe body 11 is a conical tip part, and the far end of the expansion pipe body 11 is connected with a joint 12. The diameter of the expansion pipe body is 4-8 mm.

With continued reference to fig. 1 to 4, the sleeve 2 is sleeved outside the expanding tube 1, and the sleeve 2 includes a sleeve tube body 21, and a tearing component disposed on the sleeve tube body 21, where the tearing component is two handle sheaths 22. The inner cavity of the sleeve 2 is provided with a sleeve channel 23 for accommodating the expansion tube 1 and enabling the inner wall of the sleeve tube body 21 to be tightly attached to the outer wall of the expansion tube body 11. The inside diameter of the sleeve body 21 is equal to the diameter of the expansion tube body 11 to achieve a tighter fit. The sleeve pipe body 21 is a tearable sleeve pipe and is made of High Density Polyethylene (HDPE) material, the thickness of the pipe wall is less than or equal to 0.3mm, and the pipe body is smooth and soft and is easy to deform and recover. Wherein the elasticity of the sleeve tube body 21 is greater than that of the extension tube body 11.

The cannula body 21 has a proximal end and a distal end, and the proximal end may have a tapered end for a tighter fit with the dilation tube body 11. Two handle sheath pipes 22 are arranged on two sides of the sleeve pipe body 21 near the far end position and used for tearing the sleeve pipe body 21 apart. When in use, the sheath tube 22 can be torn open by the handles at two sides, and the surgical instrument can be taken out.

Wherein, the joint 12 at the far end of the expanding tube body 11 is a locking type luer joint.

As shown in fig. 5, the cannula body 21 includes a flexible nozzle 25. The sleeve pipe body is made of high-density polyethylene (HDPE) materials, the pipe wall is thin, the pipe body is smooth and soft, the sleeve pipe body has the advantages of being good in elasticity and easy to deform and recover, when stones are taken, irregular-shaped broken stones 3 (particularly large-cross-section broken stones) are encountered, the flexible pipe opening 25 can deform under stress under the extrusion of the pipe body and the broken stones, namely, the sleeve pipe shape is adjusted according to the shapes of the broken stones, and the broken stones can pass through the sleeve pipe channel and be taken out smoothly.

The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A percutaneous, minimally invasive renal dilation drainage kit, comprising: an expansion tube and a sleeve, the expansion tube comprising: the expansion pipe comprises an expansion pipe body and a joint connected with one end of the expansion pipe body; the sleeve pipe cover is established the outside of expansion pipe body, the sleeve pipe includes: the sleeve pipe comprises a sleeve pipe body and a tearing part arranged on the sleeve pipe body, wherein the thickness of the pipe wall of the sleeve pipe body is less than or equal to 0.3mm, the sleeve pipe body comprises a flexible hose opening, the inner diameter of the sleeve pipe body is equal to the diameter of the expansion pipe body, and the elasticity of the sleeve pipe body is greater than that of the expansion pipe body.

2. The percutaneous renal minimally invasive dilation drainage kit according to claim 1, wherein the tear away member is disposed near a distal end of the cannula body.

3. The percutaneous renal minimally invasive dilation drainage kit according to claim 1, wherein the tear-away member is a two-handle sheath.

4. The percutaneous minimally invasive renal dilation drainage kit according to claim 1, wherein the cannula body has a cannula passage, the cannula body being tightly coupled to the dilation tube body.

5. The percutaneous renal minimally invasive dilation drainage kit according to claim 1, wherein the cannula proximal end has a tapered port.

6. The percutaneous minimally invasive renal dilation drainage kit of claim 1, wherein the proximal end of the dilation tube body has a tip portion.

7. The percutaneous minimally invasive renal dilation drainage kit of claim 1, wherein the connector of the dilation tube is a luer-lock connector.