CN217246118U - Self-adaptive telescopic ureteral stent tube - Google Patents

Abstract

The utility model discloses a scalable ureteral stent tube of self-adaptation belongs to medical instrument technical field, including the support main part, renal pelvis end and bladder end are installed respectively to the both sides of support main part, the support main part is formed by silica gel passageway and elastic channel built-up connection, renal pelvis end integrated into one piece sets up the one end of keeping away from elastic channel at the silica gel passageway, bladder end integrated into one piece sets up the one end of keeping away from the silica gel passageway at elastic channel, silica gel passageway, renal pelvis end, bladder end and the inside catheterization passageway that all is provided with of elastic channel, renal pelvis end and bladder end are the helical tube form under the natural state. The self-adaptive telescopic ureteral stent tube can self-adaptively adjust the length of the whole stent tube according to the ureteral lengths of different patients or the downward moving condition of the ureteral stent after the patient stands for activity in the daytime through the arranged elastic channel, so that the length of the stent tube is proper, and the bladder irritation symptom of the patient is relieved as much as possible.

Description

Self-adaptive telescopic ureteral stent tube

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a scalable ureteral stent pipe of self-adaptation.

Background

The ureteral stent (double-pigtail catheter or D-J tube) is widely applied to urinary surgery, is suitable for urinary tract operations such as nephroureteral calculus, ureteral stenosis and kidney transplantation, and the indwelling stent in the ureteral catheter can play important roles in draining urine and preventing ureteral stenosis.

In the process of implementing the present invention, the inventor finds that there are at least the following problems in the technology: the length of the prior ureteral stent is mostly the same, so that women, children or patients with short height have too long ureteral stent bladder ends, and the ureteral stent can move downwards after the patients stand and move in the daytime, thereby causing obvious bladder irritation symptoms such as frequent micturition, urgent micturition, pain in micturition and the like, and bringing great pain to the patients.

For this reason, we propose an adaptive telescopic ureteral stent tube to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the most the same of its length of current ureteral stent in the prior art, women, child or the short patient ureteral stent bladder end overlength of height appear often like this, and the patient can appear moving down in addition in the activity back ureteral stent of standing daytime in addition to arouse bladder stimulation symptoms such as obvious urine frequently, urgency of micturition, dysuria, bring very big painful problem for patient, and the scalable ureteral stent of self-adaptation that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a scalable ureteral stent tube of self-adaptation, includes the support main part, renal pelvis end and bladder end are installed respectively to the both sides of support main part, the support main part is formed by silica gel passageway and elastic channel built-up connection, renal pelvis end integrated into one piece sets up the one end of keeping away from elastic channel at the silica gel passageway, the inside spring coil that is provided with of elastic channel, bladder end integrated into one piece sets up the one end of keeping away from the silica gel passageway at elastic channel, silica gel passageway, renal pelvis end, bladder end and elastic channel inside all are provided with the catheterization passageway, renal pelvis end and bladder end are the tubulose of spiral.

As a further preferable scheme, the joints of the silica gel channel and the elastic channel and the joints of the bladder end and the elastic channel are provided with elastic pieces for assisting in connection and pulling.

As a further preferred scheme, the elastic pieces are provided with a plurality of elastic pieces, and the elastic pieces are arranged in an annular array by taking the central axis of the support main body as the center.

As a further preferred scheme, a plurality of flow guide holes are formed in the outer side edges of the silica gel channel, the renal pelvis end, the bladder end and the elastic channel, and the flow guide holes are arranged at equal intervals along the outer edge of the support main body.

As a further preferable scheme, scales are carved on the outer edges of the silica gel channel and the elastic channel, and a zero scale line is positioned at the vertex of the end of the renal pelvis.

As a further preferable scheme, the elastic channel is made of one or more of rubber materials and latex materials.

To sum up, the utility model discloses a technological effect and advantage: the self-adaptive telescopic ureteral stent tube can self-adaptively adjust the length of the whole stent tube according to the ureteral lengths of different patients or the downward moving condition of the ureteral stent after the patient stands for activity in the daytime through the elastic channel arranged on the stent body, so that the length of the stent tube is proper, and the bladder irritation symptom of the patient is relieved as much as possible;

the renal pelvis end and the bladder end are in a spiral tube shape in a natural state, so that the ureteral stent can be prevented from moving, the damage to a urinary tract is reduced, the discomfort is reduced, and the ureteral stent can be straightened under the support of a guide wire or the traction of external force slightly, so that the stent tube can be smoothly placed or taken out.

Drawings

FIG. 1 is a schematic view of the structure of the present invention in a natural state;

fig. 2 is a schematic structural view of the ureteral stent of the present invention after being straightened;

FIG. 3 is an enlarged view of the section A of FIG. 1 according to the present invention;

fig. 4 is a transverse sectional view of the joint of the silica gel channel and the elastic channel of the present invention.

In the figure: 1. a silica gel channel; 2. the renal pelvis end; 3. the bladder end; 4. an elastic channel; 41 spring rings, 5 and flow guide holes; 6. an elastic sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a self-adaptive telescopic ureteral stent comprises a stent main body, a renal pelvis end 2 and a bladder end 3 are respectively arranged at two sides of the stent main body, the stent main body is formed by combining and connecting a silica gel channel 1 and an elastic channel 4, when the self-adaptive telescopic ureteral stent works, the starting parts at two ends of the ureteral stent are designed into pencil-head-shaped fusiform, therefore, the stent tube is convenient to advance and place under the guidance of the guide wire in the operation, the elastic channel 4 is made of one or more of rubber materials and latex materials, the length ratio of the elastic channel 4 to the silica gel channel 1 is 1:2, can have great length accommodation, the inside spring coil 41 that is provided with of elasticity passageway 4, spring coil 41 has a great elasticity adjustment scope for guaranteeing elasticity passageway 4's whole, and pelvis end 2 integrated into one piece sets up the one end of keeping away from elasticity passageway 4 at silica gel passageway 1, and bladder end 3 integrated into one piece sets up the one end of keeping away from silica gel passageway 1 at elasticity passageway 4.

The arrangement of the elastic channel 4 and the spring ring 41 inside the elastic channel can adaptively adjust the length of the whole stent tube according to the lengths of ureters of different patients or the downward moving condition of the ureter stent after the patients stand and move in the daytime, so that the length of the stent tube is proper, and the bladder irritation symptom of the patients is relieved as much as possible.

Silica gel passageway 1, renal pelvis end 2, bladder end 3 and elastic channel 4 are inside all to be provided with the catheterization passageway, have seted up a plurality of water conservancy diversion hole 5 on the pipe wall of silica gel passageway 1, renal pelvis end 2, bladder end 3 and elastic channel 4, and a plurality of water conservancy diversion hole 5 sets up along support main part equidistance, and water conservancy diversion hole 5 can make the urine flow through the cavity internal diameter of support pipe.

The renal pelvis end 2 and the bladder end 3 are in a spiral tubular shape in a natural state, and the renal pelvis end 2 and the bladder end 3 are arranged in the spiral tubular shape, so that two ends of the bracket tube can be hung in the renal pelvis and the bladder respectively, and the ureteral bracket is prevented from shifting during indwelling in a body.

The pipe wall of silica gel passageway 1 and elastic channel 4 is equipped with the scale, and zero scale mark is located 2 summits departments of renal pelvis end, and the setting of scale can put into the in-process at the support tube and have fine understanding to the length that the whole body got into.

Referring to fig. 4, silica gel passageway 1 and elastic channel 4 and bladder end 3 and elastic channel 4's junction all is provided with the flexure strip 6 of supplementary connection pulling, flexure strip 6 is provided with a plurality of, a plurality of flexure strip 6 uses the axis of support main part to set up as central annular array, through a plurality of flexure strip 6 that sets up, can improve the tight degree of connection between silica gel passageway 1 and the elastic channel 4 in the course of the work, improve the joint strength of silica gel passageway 1 and elastic channel 4, avoid the fracture as far as possible.

The working principle is as follows: when the stent tube needs to be placed, the stent tube is pushed into the corresponding position under the guide of the guide wire, then the guide wire is pulled out, and at the moment, the renal pelvis end 2 and the bladder end 3 are in a spiral curling state without the support of the guide wire, so that the placement of the stent tube is completed. The length of the whole bracket tube can be adaptively adjusted according to the lengths of ureters of different patients or the downward moving condition of the ureter bracket after the patients stand and move in the daytime, so that the length of the bracket tube is proper, and the bladder irritation symptom of the patients is relieved as much as possible. When the stent tube needs to be taken out after being used for a period of time, the renal pelvis end 2 and the bladder end 3 which are spirally curled in a natural state can be straightened by slightly drawing with external force, so that the stent tube can be smoothly taken out.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a scalable ureteral stent tube of self-adaptation, includes the support main part, its characterized in that, renal pelvis end (2) and bladder end (3) are installed respectively to the both sides of support main part, the support main part is formed by silica gel passageway (1) and elastic channel (4) built-up connection, renal pelvis end (2) integrated into one piece sets up the one end of keeping away from elastic channel (4) in silica gel passageway (1), bladder end (3) integrated into one piece sets up the one end of keeping away from silica gel passageway (1) in elastic channel (4), elastic channel (4) inside is provided with spring coil (41), silica gel passageway (1), renal pelvis end (2), bladder end (3) and elastic channel (4) inside all are provided with leads the urine passageway, renal pelvis end (2) and bladder end (3) are the helical tube form.

2. The self-adaptive telescopic ureteral stent tube according to claim 1, wherein the joints of the silica gel channel (1) and the elastic channel (4) and the joints of the bladder end (3) and the elastic channel (4) are provided with elastic sheets (6) for assisting in pulling the connection.

3. The self-adaptive telescopic ureteral stent tube according to claim 2, wherein the elastic sheets (6) are provided in a plurality, and the plurality of elastic sheets (6) are arranged in an annular array by taking a central axis of the stent main body as a center.

4. The self-adaptive telescopic ureteral stent tube according to claim 1, wherein a plurality of flow guide holes (5) are formed in the outer side edges of the silica gel channel (1), the renal pelvis end (2), the bladder end (3) and the elastic channel (4), and the plurality of flow guide holes (5) are arranged at equal intervals along the outer edge of the stent main body.

5. The self-adaptive telescopic ureteral stent tube according to claim 1, wherein scales are engraved at the outer edges of the silica gel channel (1) and the elastic channel (4), and a zero scale line is positioned at the vertex of the renal pelvis end (2).

6. The adaptive flexible ureteral stent tube according to claim 1, wherein the elastic channel (4) is one or more of a rubber material and a latex material.

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