CN211486130U

CN211486130U - Disposable ureter catheterization support pipe

Info

Publication number: CN211486130U
Application number: CN201922005085.3U
Authority: CN
Inventors: 谢正武; 叶林辉; 郑立巧; 刘巧清
Original assignee: Shenzhen Tairuishi Medical Technology Co ltd
Current assignee: Shenzhen Tairuishi Medical Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-09-15
Anticipated expiration: 2029-11-19

Abstract

The utility model relates to the technical field of medical equipment, a disposable ureter catheterization support tube is disclosed, it includes support tube body and two portions of curling, one of them the portion of curling is placed in the renal pelvis, another one the portion of curling is placed in the bladder, two the portion of curling set up respectively in the both ends of support tube body, each the portion of curling includes first elasticity spiral section and second elasticity spiral section, the both ends of first elasticity spiral section respectively with support tube body with second elasticity spiral section is connected, works as when the portion of curling is in the crimping state, the lateral wall of second elasticity spiral section with have the space between the support tube body. The utility model discloses can solve the pigtail circle among the prior art and use the back for a long time, form the problem of cladding thing and bacterium biomembrane at the outer wall of pigtail circle and the outer wall of catheterization support tube body easily.

Description

Disposable ureter catheterization support pipe

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a disposable ureter catheterization support pipe.

Background

In recent years, the medicine is clinically applied to diseases such as upper urinary tract obstruction and hydronephrosis caused by kidney stones, ureteral stones, bladder stones and ureters caused by various other reasons (inflammatory stenosis and postradiotherapy stenosis), so that the renal function is seriously damaged, and the renal function is seriously lost, thereby endangering the health of patients. Medical care personnel generally treat through the ureteral catheterization support tube, delay or prevent further harm of renal function, alleviate the misery that patient brought, reduced the ureter stenosis or the risk of ureter stenosis again and appearing secondary kidney stone after the operation, but current ureteral catheterization support tube generally comprises catheterization support tube body and two pigtail circles, and when the pigtail circle was in the state of curling, the outer wall of pigtail circle and the outer wall of catheterization support tube body contacted, the outer wall at pigtail circle and the outer wall of catheterization support tube body formed cladding thing and bacterial biofilm easily after long-time use, therefore had the risk of infection.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the utility model provides a disposable ureteral catheterization support tube to solve the pigtail circle among the prior art and use the back for a long time, form the problem of cladding thing and bacterium biomembrane easily at the outer wall of pigtail circle and the outer wall of catheterization support tube body.

In order to solve the technical problem, the utility model provides a disposable ureteral catheterization support tube, it includes support tube body and two portions of curling, one of them the portion of curling is placed in the renal pelvis, another one the portion of curling is placed in the bladder, two the portion of curling set up respectively in the both ends of support tube body, each the portion of curling includes first elasticity spiral section and second elasticity spiral section, the both ends of first elasticity spiral section respectively with support tube body with second elasticity spiral section is connected, works as when the portion of curling is in the crimping state, the lateral wall of second elasticity spiral section with have the space between the support tube body.

Optionally, the first elastic spiral section is flush with the support tube body, and the second elastic spiral section is convexly arranged on the first elastic spiral section.

Optionally, the outer wall of the stent tube body and the outer part of the curled portion are coated with hydrophilic coating layers.

Optionally, the hydrophilic coating is a crosslinked PVP coating.

Optionally, the material of the support tube body and the material of the curled portion are both polyurethane materials.

Optionally, the stent tube body and the curling portion are both provided with a plurality of urethral catheterization holes.

Optionally, the inner surface of the stent tube body and the inner surface of the curled portion are both coated with a teflon material layer.

Optionally, the shape of the urethral catheterization hole is circular or oval.

The embodiment of the utility model provides a disposable ureteral catheterization stent tube compares with prior art, and its beneficial effect lies in:

the utility model discloses a disposable ureteral catheterization stent, when the curl was in the state of curling, the lateral wall of second elasticity spiral section had the space with the lateral wall of first elasticity spiral section, and the lateral wall of second elasticity spiral section had the space with the lateral wall of stent body, the urine can be well through the space between first elasticity spiral section and the second elasticity spiral section and through the space between second elasticity spiral section and the stent body, the cleanliness of ureteral catheterization stent has been guaranteed, avoid forming cladding thing and bacterial biofilm between first elasticity spiral section and second elasticity spiral section and between second elasticity spiral section and stent body, reduce the probability of stone relapse and renal failure;

therefore, the utility model discloses a disposable ureteral catheterization support pipe has safe convenient and safe and reliable's advantage of operation to certain popularization nature has.

Drawings

Fig. 1 is a schematic structural view of a disposable ureteral catheterization stent tube in an embodiment of the present invention.

Fig. 2 is a partial structural schematic view of a disposable ureteral catheterization stent tube according to an embodiment of the present invention.

Fig. 3 is a partial structural schematic view of a disposable ureteral catheterization stent tube according to an embodiment of the present invention.

In the figure, 1, a stent tube body; 2. a curling portion; 21. a first elastic helical segment; 22. a second elastic helical segment.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

As shown in fig. 1-3, the preferred embodiment of the utility model provides a disposable ureteral catheterization support tube, it includes support tube body 1 and two portions of curling 2, one of them portion of curling 2 is placed in the renal pelvis, another one portion of curling 2 is placed in the bladder, two portions of curling 2 set up respectively in the both ends of support tube body 1, each portion of curling 2 includes first elasticity spiral section 21 and second elasticity spiral section 22, the both ends of first elasticity spiral section 21 are connected with support tube body 1 and second elasticity spiral section 22 respectively, when the portion of curling 2 is in the state of curling, have the space between the lateral wall of second elasticity spiral section 22 and the support tube body 1.

Based on the above arrangement, the disposable ureteral catheterization stent provided by the embodiment of the present invention, when the curling portion 2 is in a curled state, the side wall of the second elastic spiral section 22 has a gap with the side wall of the first elastic spiral section 21, and the side wall of the second elastic spiral section 22 has a gap with the side wall of the stent body 1, so that urine can well pass through the gap between the first elastic spiral section 21 and the second elastic spiral section 22 and through the gap between the second elastic spiral section 22 and the stent body 1, thereby ensuring the cleanliness of the ureteral catheterization stent, avoiding the formation of a coating and a bacterial biofilm between the first elastic spiral section 21 and the second elastic spiral section 22 and between the second elastic spiral section 22 and the stent body 1, and reducing the probability of calculus recurrence and renal failure;

In this embodiment, as shown in fig. 1 to 3, the first elastic spiral section 21 is disposed flush with the stent tube body 1, and the second elastic spiral section 22 is disposed in the first elastic spiral section 21 in a protruding manner, wherein a gap is formed between the first elastic spiral section 21 and the stent tube body 1, and gaps are formed between the second elastic spiral section 22 and the first elastic spiral section 21 as well as between the second elastic spiral section 22 and the stent tube body 1, so that urine is not easy to form a coating and a bacterial biofilm between the first elastic spiral section 21 and the second elastic spiral section 22 and between the second elastic spiral section 22 and the stent tube body 1, thereby further enhancing the safety of the ureteral catheterization stent tube.

In the embodiment, as shown in fig. 1 to 3, the outer wall of the stent tube body 1 and the outside of the curled portion 2 are coated with hydrophilic coating layers, and the hydrophilic coating layers can reduce friction between the stent tube body 1 and the ureter and friction between the curled portion 2 and the renal pelvis or bladder, so as to reduce damage of the stent tube body 1 to the ureter and damage of the curled portion 2 to the renal pelvis or bladder, and therefore, both the stent tube body 1 and the curled portion 2 have excellent sliding performance;

wherein, the hydrophilic coating is the cross-linking PVP coating, and the cross-linking PVP coating can form a layer of water film on the surface of the catheter body and the surface of the curling part 2 after absorbing water after meeting water, so that the sliding performance of the catheter body and the curling part 2 is improved.

In this embodiment, as shown in fig. 1 to 3, the material of the stent tube body 1 and the material of the curled portion 2 are both polyurethane materials, and the polyurethane materials have good compatibility with the human body.

In this embodiment, as shown in fig. 1 to 3, the stent tube body 1 and the curled portion 2 are both provided with a plurality of urethral catheterization holes, and after urine enters the stent tube body 1 and the curled portion 2 from the renal pelvis, the urine flows out of the urethral catheterization holes of the stent tube body 1 and the curled portion 2 to the ureter and then flows out of the ureter to the bladder, so that the urine is conveniently discharged.

In this embodiment, as shown in fig. 1 to 3, the inner surface of the stent tube body 1 and the inner surface of the curled portion 2 are both coated with a teflon material layer, and the teflon material layer has a drainage effect on the flow of urine.

In the present embodiment, as shown in fig. 1 to 3, the urethral catheterization hole has a circular or elliptical shape.

In this embodiment, as shown in fig. 1 to 3, the outer wall of the stent tube body 1 and the outer wall of the curved portion 2 are both provided with scales, wherein the starting value of the scales is set on the curved portion 2 located on the renal pelvis, and the ending value of the scales is set on the curved portion 2 located on the urinary bladder, so that medical staff can observe the length of the ureter catheterization stent tube extending into the ureter, and further the medical staff can treat the patient conveniently.

To sum up, the disposable ureteral catheterization stent provided by the embodiment of the present invention, when the curling portion 2 is in a curled state, the side wall of the second elastic spiral section 22 has a gap with the side wall of the first elastic spiral section 21, and the side wall of the second elastic spiral section 22 has a gap with the side wall of the stent body 1, so that urine can well pass through the gap between the first elastic spiral section 21 and the second elastic spiral section 22 and through the gap between the second elastic spiral section 22 and the stent body 1, thereby ensuring the cleanliness of the ureteral catheterization stent, avoiding the formation of a coating and a bacterial biofilm between the first elastic spiral section 21 and the second elastic spiral section 22 and between the second elastic spiral section 22 and the stent body 1, and reducing the probability of stone recurrence and renal failure;

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The disposable ureteral catheterization stent tube is characterized by comprising a stent tube body and two curling parts, wherein one curling part is placed in a renal pelvis, the other curling part is placed in a urinary bladder, the two curling parts are respectively arranged at two ends of the stent tube body, each curling part comprises a first elastic spiral section and a second elastic spiral section, two ends of the first elastic spiral section are respectively connected with the stent tube body and the second elastic spiral section, and when the curling parts are in a curling state, gaps are formed between the side walls of the second elastic spiral section and the side walls of the stent tube body and the first elastic spiral section.

2. The single use ureteral catheterization stent tube of claim 1, wherein the first resilient helical segment is disposed flush with the stent body, and the second resilient helical segment is disposed convexly over the first resilient helical segment.

3. The single-use ureteral catheterization stent tube according to claim 1, wherein the outer wall of the stent tube body and the outside of the curled portion are coated with a hydrophilic coating layer.

4. The single use ureteral catheterization stent tube of claim 3, wherein the hydrophilic coating is a cross-linked PVP coating.

5. The disposable ureteral catheterization stent tube of claim 1, wherein the material of the stent tube body and the material of the curled portion are both polyurethane materials.

6. The single use ureteral catheterization stent of claim 2, wherein the stent body and the crimp are each provided with a plurality of catheterization holes.

7. The single use ureteral catheterization stent tube of claim 6, wherein the inner surface of the stent tube body and the inner surface of the coil portion are both coated with a layer of teflon material.

8. The single use ureteral catheterization stent tube of claim 7, wherein the shape of the urethral catheterization hole is circular or oval.