Self-discharging DJ tube with dissolvable tail end and line

Abstract

The utility model discloses a tail-end-dissolvable self-discharging DJ tube with lines. The tail-end-dissolvable self-discharging DJ tube comprises a DJ tube body, a DJ tube head end and a DJ tube tail end. The head end of the DJ tube is of a bent structure. The tail end of the DJ pipe is fixedly connected with a fishtail-shaped coil, and folding points of the fishtail-shaped coil are bonded through hydrosol. The DJ tube is simple in structure and convenient to use, the fishtail-shaped coil is designed to replace an original tail-end J-shaped tube head, and the bladder stimulation symptom during the tube carrying period can be remarkably relieved; the fishtail-shaped coil at the tail end of the tail part of the stent tube is made of a No.7 antibacterial line, after the coil is folded, a folding point is adhered to the tail end of the stent tube by using hydrosol, so that the folding point is slowly dissolved after an operation, the coil is dispersed and discharged out of the urethra along with urine, a cystoscope is not needed for pulling out, and the stent tube is prevented from being taken out through an operation; the pain and the economic cost of the patient are reduced, and wide practicability is achieved in the field of medical instruments.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, especially a terminal dissolvable DJ tube with a line. BACKGROUND

[0002] Ureteral stent (also known as double pigtail catheter, or DJ tube) is widely used in urological surgery, and is suitable for kidney stones, ureteral stones, hydronephrosis, kidney transplantation, kidney and ureter benign tumors, and other upper urinary tract surgeries, as well as lithotripsy, ureteral stricture dilation, and other treatment processes. After being implanted into the ureter, it can play an important role in draining urine, preventing ureteral stricture and adhesion blockage. The DJ tubes used in clinical applications are mostly made of silicone rubber or polyurethane high molecular materials. However, these materials cannot be degraded and absorbed in the human body, and need to be removed through surgery after a period of placement, increasing the patient's pain and economic burden. In addition, the double J tube often causes some complications. With the extension of the stent placement time, these materials begin to affect the urinary epithelium and urine composition, leading to the formation of a coating, bacterial biofilm around the stent, and infection, affecting the use effect and causing some complications such as: waist and abdominal pain, frequent urination, urinary urgency, urinary pain, hematuria, and infection. Therefore, the existing DJ tube products have some inherent defects that cannot be overcome in application, and therefore a suitable DJ tube is urgently needed.

[0003] Currently, there are several studies on new DJ tubes, such as biological coating and drug-eluting stents, which are described as being able to alleviate the discomfort of the urinary system such as waist pain, hematuria, bladder irritation, and other symptoms, and may also inhibit complications such as urine reflux, infection, encrustation, and rejection, but their safety and effectiveness still need to be clinically verified [1] . Secondly, degradable ureteral stents are also a research hotspot. Degradable ureteral stents not only avoid the pain and medical expenses caused by secondary surgery for patients, but also prevent serious consequences caused by forgotten stents. Currently, research on degradable ureteral stents has made some progress, but it is still in the preclinical stage [2] . Because the absorption time of the stent is difficult to control, and the dissolved stent fragments may not be able to be excreted with urine. In addition, 3D-printed stents and magnetic stents are also in the research and development stage [3] . In order to avoid surgical removal of the stent, some studies have designed a DJ tube with a traction cord at the end, with the end of the traction cord protruding several centimeters beyond the external urethral orifice after placement, allowing the DJ tube to be removed directly by pulling the traction cord. However, this method can easily cause urine leakage and lower urinary tract discomfort in patients, and there is a risk of stent displacement if the traction line is pulled inadvertently. SUMMARY

[0004] In view of the above, the DJ tube currently widely used in clinical practice needs to be removed by surgery, increasing the patient's economic cost and pain, so there is an urgent need for a DJ tube that can be discharged outside the body at a specified time. The degradable DJ tube designed at present cannot completely degrade in the body within a safe time range, and the residual DJ tube has the risk of causing infection, forming stones, and causing obstruction; the DJ tube with a traction line at the end is directly pulled out from the external urethral orifice, and at a specified time, the DJ tube is removed by pulling the traction line, which brings serious discomfort to the patient, and there is a risk of displacement of the stent if the traction line is pulled by mistake, in addition, the traction line is a thin plastic line, which may damage the urethral mucosa and cause bleeding, and even urethral stenosis. Therefore, we designed a self-discharge DJ tube with a line, which can be self-discharged, has no DJ tube residue, and can set the time for the DJ tube to be discharged, so as to reduce the pain and medical expenses of the patient.

[0005] To solve the above problems, the utility model adopts the scheme as follows: a terminal dissolvable self-discharge DJ tube with a line, characterized by including DJ tube body, DJ tube head end, DJ tube tail end, the DJ tube head end is a curved structure, the DJ tube tail end is fixedly connected with a fish tail-shaped coil, and the fish tail-shaped coil folding point is bonded with water-soluble glue.

[0006] Further, the fish tail-shaped coil is made of an antibacterial coil.

[0007] Further, the fish tail-shaped coil folding point is bonded on the DJ tube tail end by water-soluble glue.

[0008] Further, the DJ tube body and the DJ tube head end are uniformly provided with drainage ports.

[0009] Further, the DJ tube body is made of polyurethane, and the surface is coated with an antibacterial coating.

[0010] The technical effects of the utility model are as follows: compared with the prior art, the DJ tube has a simple structure and is easy to use. First, the DJ tube surface is covered with an antibacterial coating, then a fish tail-shaped coil is arranged at the tail end, that is, the two ends of the antibacterial line are fused at the DJ tube tail end, the fish tail-shaped coil is designed to replace the original tail end J-shaped tube head, which can significantly reduce the bladder irritation symptoms during the tube period, then the fish tail-shaped double ring is folded, and the line folding point is bonded on the DJ tube tail end by using water-soluble glue, the water-soluble glue is dissolved at a set dissolution time (the folding point is slowly dissolved after surgery), so that the coil is released, and the coil is discharged from the urethra with urine, and the DJ tube can be removed by pulling the coil, without the need for cystoscopy to remove it, avoiding the removal of the DJ tube by surgery, reducing the pain and economic cost of the patient, and having wide applicability in the field of medical devices. The design is simple and easy to implement, and has high feasibility and popularization, compared with the existing DJ tube, it can reduce the pain of the patient during the second operation to remove the tube, reduce the medical expenses, and reduce the social medical burden. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 DJ tube coil dissolution before the schematic diagram.

[0012] Figure 2 DJ tube coil dissolution after the schematic diagram.

[0013] Wherein, 1: DJ tube head end, 2: DJ tube body, 3: DJ tube tail end, 4: fish tail coil folding point, 5: fish tail coil. DETAILED DESCRIPTION

[0014] The utility model will be made further detailed description in combination with the drawings.

[0015] Embodiment: as Figure 1 Indicated, a terminal dissolvable with line self-discharge DJ tube, including DJ tube body, DJ tube head end, DJ tube tail end, the DJ tube head end is curved structure, the DJ tube tail end is fixedly connected and sets up fish tail coil, and fish tail coil folding point adopts water-soluble adhesive and is bonded to DJ tube tail end (i.e. using water-soluble glue and is bonded in the support pipe terminal the folding point of the fish tail coil of the antibacterial line of 7 antibacterial lines is folded). Fish tail coil adopts 7 antibacterial lines, first, its both ends are fixed in DJ pipe terminal and form coil, then antibacterial coil is folded for 3 times, forms 8 strands, and the line folding point is bonded in DJ pipe terminal using water-soluble glue. After antibacterial line dissolves, the length of coil is 24cm.

[0016] DJ tube: that is, using the polyurethane material of the current conventional use to make DJ tube, surface smears antibacterial coating, tail end does not bend into a circle. Coil: the both ends of 7 antibacterial lines are fixed in DJ pipe terminal, then the antibacterial line is folded for 3 times, forms 8 strands, and the line folding point is bonded in DJ pipe terminal using water-soluble glue. Water-soluble glue dissolves in urine in the specified time, releases coil, and coil is flushed out of urethra along with urine, and DJ tube can be taken out by pulling coil.

[0017] As Figure 2 Indicated, the folding point slowly dissolves after operation, so that coil is released, and is discharged along with urine in urethra, and DJ tube can be taken out by pulling coil, need not be removed by cystoscope, avoids the DJ tube of taking out by operation, reduces the pain and economic cost of patient.

Claims

1. A dissolvable end-tipped, self-venting DJ tube with a line, characterized in that, Including DJ tube body, DJ pipe head, DJ pipe tail end; The DJ pipe head is a curved structure; The fish tail shaped coil is fixedly connected with the DJ pipe tail end, and the fish tail shaped coil folding point is bonded with water sol.

2. The dissolvable end with line self-draining DJ tube of claim 1, wherein, The fish tail shaped coil is folded with an antibacterial coil.

3. The dissolvable end with line self-draining DJ tube of claim 1, wherein, The folding point of the fish tail shaped coil is bonded on the DJ pipe tail end through water sol.

4. The dissolvable endo DJ tube with suture self-feeding according to claim 1, wherein, The DJ tube body and the DJ pipe head are uniformly distributed with drainage ports.

5. The dissolvable endo DJ tube with suture self-feeding according to claim 1, wherein, The DJ tube body adopts polyurethane, and the surface is coated with an antibacterial coating.

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