CN219743662U - Ureteral stent tube - Google Patents
Ureteral stent tube Download PDFInfo
- Publication number
- CN219743662U CN219743662U CN202321251923.5U CN202321251923U CN219743662U CN 219743662 U CN219743662 U CN 219743662U CN 202321251923 U CN202321251923 U CN 202321251923U CN 219743662 U CN219743662 U CN 219743662U
- Authority
- CN
- China
- Prior art keywords
- ureteral stent
- tube body
- tube
- film bag
- traction wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002775 capsule Substances 0.000 claims abstract description 14
- 210000000244 kidney pelvis Anatomy 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 6
- 239000002861 polymer material Substances 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 244000025254 Cannabis sativa Species 0.000 claims description 3
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 3
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- 235000009120 camo Nutrition 0.000 claims description 3
- 235000005607 chanvre indien Nutrition 0.000 claims description 3
- 239000011487 hemp Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 210000003708 urethra Anatomy 0.000 abstract description 9
- 210000003932 urinary bladder Anatomy 0.000 description 24
- 239000010408 film Substances 0.000 description 22
- 210000000626 ureter Anatomy 0.000 description 13
- 210000002700 urine Anatomy 0.000 description 12
- 210000003734 kidney Anatomy 0.000 description 8
- 230000000151 anti-reflux effect Effects 0.000 description 3
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 230000027939 micturition Effects 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 208000031868 Calculus ureteric Diseases 0.000 description 1
- 206010020524 Hydronephrosis Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000000014 Ureteral Calculi Diseases 0.000 description 1
- 208000004608 Ureteral Obstruction Diseases 0.000 description 1
- 206010061397 Urinary tract injury Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 230000036724 intravesical pressure Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 208000019206 urinary tract infection Diseases 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
- Prostheses (AREA)
Abstract
The utility model relates to a ureteral stent tube, which comprises a tube body with a hollow tubular structure, wherein the tube body is provided with a bent head end; at least one urethral catheterization hole communicated with the tube body is formed on the tube body or the bent head end; the tail end of the tube body is connected with the film bag, wherein two ends of the film bag are opened, one end of the film bag is communicated with the tube body, and a traction wire is arranged at the other end of the film bag; the utility model has ingenious design, one end of the traction wire is fixed on the pipe wall cross section of the straight end by arranging the traction wire in the annular opening at the tail end of the capsule body, the free end of the traction wire is placed at the external urethral orifice when being used for drawing the flexible ureteral stent pipe out of the body along the urethra, and the problem that the prior stent pipe needs to be pulled out through a cystoscope after being left for a period of time and brings pain to a patient is solved.
Description
Technical Field
The utility model belongs to the technical field of medical appliances, and particularly relates to a ureteral stent tube.
Background
Ureteral stent tube is needed to be remained in ureter after ureteral calculus, tumor, stenosis operation and percutaneous nephroscope operation in urology surgery, and the purpose is to avoid ureter operation stenosis, alleviate hydronephrosis, relieve ureteral obstruction, etc. However, there are two problems with current ureteral stent catheters that reside post-operatively:
(1) Urine reflux: in the human body, urine secreted by the kidneys passes from the renal pelvis through the ureter to the bladder and then excreted from the body through the urethra during urination. In a healthy human body, urine is excreted in one direction from the kidneys to the bladder by peristaltic movement of the ureter. The terminal ureter has a condensation function and has an anti-reflux effect. After the ureteral stent is placed, the ureteral stent body is of a soft hollow tubular structure; the two ends are J-shaped head ends, one end is placed in the renal pelvis of a patient, and the other end is placed in the bladder, so that an anti-reflux mechanism of the ureter is eliminated, and the internal pressure of the bladder is increased during urination so that urine in the bladder returns to the renal pelvis along the ureteral stent tube, thereby causing waist soreness.
(2) Tube drawing problem: after the stent tube is left for a period of time, the stent tube needs to be pulled out through a cystoscope, and the cystoscope operation brings great pain to a patient.
In view of the above, improvements are needed.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides the ureteral stent tube which is simple in structure and reasonable in design. The tail end of the catheter is designed to have the anti-reflux function, so that urine in the bladder can be prevented from being refluxed, and meanwhile, the catheter is prevented from being pulled out through a cystoscope, so that the pain of pulling out and the risk of urinary tract injury and infection are reduced.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a ureteral stent tube comprises a tube body with a hollow tubular structure, wherein the tube body is provided with a bent head end; at least one urethral catheterization hole communicated with the tube body is formed on the tube body or the bent head end; the tail end of the tube body is connected with the film bag, wherein, the two ends of the film bag are opened, one end of the film bag is communicated with the tube body, and the other end of the film bag is internally provided with a traction wire.
As a preferable scheme of the utility model, a plurality of urethral catheterization holes are arranged, and the urethral catheterization holes are uniformly distributed on the pipe body or the bent head end.
As a preferable mode of the utility model, the tail end of the film bag is an annular opening, a traction wire is arranged in the annular opening, and one end of the traction wire is fixed on the pipe wall cross section of the pipe body.
As a preferable scheme of the utility model, the traction wire is a medical nylon wire, a medical cotton wire or a medical hemp wire.
As a preferred embodiment of the present utility model, the membrane vesicles have a spindle-like structure.
As a preferable scheme of the utility model, a plurality of second urethral catheterization holes are distributed on the film bag.
As a preferable scheme of the utility model, the inner diameter of the capsule body of the film capsule is 0.5-0.8 cm when the capsule body is filled, and the length of the film capsule is 1.5-3.0 cm.
As a preferred embodiment of the present utility model, the membrane vesicle is partially left in the bladder of the patient.
As a preferable scheme of the utility model, the tube body is made of medical polymer material, and the medical polymer material is polyurethane.
As a preferred aspect of the present utility model, the curved head end is formed by a tubular body coil, in the shape of a J-shaped head end, through which the ureteral stent tube is placed in the renal pelvis of a patient.
The beneficial effects of the utility model are as follows:
1. the urine collecting device is simple in structure, the tail end of the tube body is connected with the film bag, wherein the bag body part of the film bag is reserved in the urinary bladder, so that urine can be injected into the urinary bladder from the kidney through the ureter catheter, the bag body is retracted due to the internal pressure of the urinary bladder when the urinary bladder is contracted, and the urine is effectively prevented from flowing back into the kidney from the urinary bladder through the ureter catheter.
2. The utility model has ingenious design, one end of the traction wire is fixed on the pipe wall cross section of the straight end by arranging the traction wire in the annular opening at the tail end of the capsule body, the free end of the traction wire is placed at the external urethral orifice when being used for drawing the flexible ureteral stent pipe out of the body along the urethra, and the problem that the prior stent pipe needs to be pulled out through a cystoscope after being left for a period of time and brings pain to a patient is solved.
Drawings
Fig. 1 is a schematic view of a ureteral stent according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of part of the A-direction of FIG. 1 in accordance with an embodiment of the present utility model;
fig. 3 is a view showing a state of use of a ureteral stent according to an embodiment of the present utility model;
fig. 4 is a schematic view of a second ureteral stent according to an embodiment of the present utility model;
fig. 5 is a schematic view of a three ureteral stent tube according to an embodiment of the present utility model;
reference numerals in the drawings: the catheter body 1, the curved head end 2, the urethral catheterization hole 3, the membrane sac 4, the traction wire 5, the second urethral catheterization hole 6, the annular opening 7, the bladder 8, the renal pelvis 9, the urethra 10 and the ureteral stent 100.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples:
as shown in fig. 1 to 3, the ureteral stent provided in this embodiment includes a tube body 1 having a hollow tubular structure, the tube body 1 having a curved head end 2; at least one urethral catheterization hole 3 communicated with the tube body 1 is formed on the tube body 1 or the bent head end 2; the tail end of the tube body 1 is connected with a film bag 4, wherein two ends of the film bag 4 are opened, one end of the film bag is communicated with the tube body 1, and a traction wire 5 is arranged at the other end of the film bag; the other end of the tube body 1 is a straight end, which is an open end configured for placement in the ureter of a patient; the straight end is connected with the spindle-shaped membrane sac 4, the bent end 2 is formed by bending a tube body to form a J-shaped end, and the ureteral stent tube 100 is placed in the renal pelvis 9 of a patient through the J-shaped end.
The utility model has simple structure, and the tail end of the tube body 1 is connected with the film bag 4, wherein the bag body part of the film bag 4 is reserved at the bladder 8, so that urine can be ensured to be smoothly injected into the bladder 8 from the kidney through the ureter catheter, and the bag body is retracted due to the internal pressure of the bladder when the bladder contracts, so that the urine is effectively prevented from flowing back into the kidney from the bladder through the ureter catheter.
Wherein, the urethral catheterization holes 3 are provided in plurality, and the urethral catheterization holes 3 are uniformly distributed on the tube body 1 or the bent head end 2; the plurality of catheterization holes 3 in this embodiment are arranged on the curved head end 2.
The tail end of the film bag 4 is provided with an annular opening 7, a traction wire 5 is arranged in the annular opening 7, and one end of the traction wire 5 is fixed on the cross section of the pipe wall of the pipe body 1; the utility model has ingenious design, one end of the traction wire is fixed on the pipe wall cross section of the straight end by arranging the traction wire in the annular opening at the tail end of the capsule body, the free end of the traction wire is placed at the external urethral orifice when being used for drawing the flexible ureteral stent pipe out of the body along the urethra, and the problem that the prior stent pipe needs to be pulled out through a cystoscope after being left for a period of time and brings pain to a patient is solved.
Specifically, the traction wire 5 is made of medical nylon wire, medical cotton wire or medical hemp wire, and is light, flexible and traction-resistant. The length of the lead is about 45cm, and the lead can be cut into different lengths according to the urethra of a male or female patient.
The straight end of the tube body 1 is connected with a spindle-shaped film bag 4 which is made of medical materials, is light, thin and non-degradable, and has an inner diameter of 0.5-0.8 cm and a length of 1.5-3.0 cm when the bag body of the film bag 4 is filled; in the embodiment, the maximum inner diameter of the capsule body is 0.8cm, the length of the capsule body is 3.0cm, and a plurality of second urethral catheterization holes 6 are uniformly distributed on the film capsule 4; the membrane vesicles 4 are partially left in the bladder 8 of the patient; can ensure that urine can be smoothly injected into the bladder from the kidney through the ureter catheter, and the bladder body is retracted due to the intravesical pressure when the bladder is contracted, so that the urine is effectively prevented from flowing back into the kidney from the bladder through the ureter catheter.
The tube body 1 can be of a flexible hollow catheter structure, the tube body 1 is made of medical high polymer material, the medical high polymer material is polyurethane, and the polyurethane material has the advantages of strong ageing resistance, good tissue compatibility, no damage to tissues, small crusting tendency and complete development on X-ray.
In this embodiment, the ureteral stent 100 is based on the principle that a guide wire is inserted into the head end of the tube body 1 and inserted into the renal pelvis 9, the outside of the body penetrates into the curved head end 2 of the tube body 1 along the tail end of the guide wire, the guide wire is pushed upward into the tube body 1, the guide wire is penetrated out of the annular opening 7 at the tail end of the film bag 4, then the push rod is inserted along the guide wire, the ureteral stent 100 is pushed upward, the part of the film bag 4 at the tail end of the catheter is observed under the endoscope to enter the ureteral opening, the push pipe is fixed, the free end of the traction wire 5 is pulled to the outer opening of the urethra 10, the guide wire is pulled out, the urinary catheter is left, the traction wire 5 is left at the outer opening of the urethra for a proper length (2 cm to 3cm is recommended), and the redundant traction wire 5 is cut.
Embodiment two;
as shown in fig. 4, in the ureteral stent provided in this embodiment, a plurality of urethral catheterization holes 3 are provided, and the plurality of urethral catheterization holes 3 are uniformly distributed on the catheter body 1. The plurality of urethral catheterization holes 3 are used for drainage, so that a doctor can conveniently put in the catheter.
For other matters in this embodiment, reference is made to embodiment one.
Embodiment three;
as shown in fig. 4, in this embodiment, the urethral catheterization hole 3 is located at the end of the curved head end 2.
For other matters in this embodiment, reference may be made to the first or second embodiment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more herein: the terms tube body 1, curved head end 2, urethral catheterization hole 3, thin film pouch 4, pull wire 5, second urethral catheterization hole 6, annular opening 7, bladder 8, renal pelvis 9, urethra 10, ureteral stent 100, etc. are not excluded from the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (10)
1. A ureteral stent, characterized in that: comprises a tube body (1) with a hollow tubular structure, wherein the tube body (1) is provided with a bent head end (2); at least one urethral catheterization hole (3) communicated with the tube body (1) is formed on the tube body (1) or the bent head end (2); the tail end of the tube body (1) is connected with the film bag (4), wherein, the two ends of the film bag (4) are opened, one end is communicated with the tube body (1), and the other end is internally provided with a traction wire (5).
2. The ureteral stent tube according to claim 1, characterized in that: the catheter body (1) is characterized in that a plurality of catheter holes (3) are formed, and the catheter body (1) or the bent head end (2) is uniformly distributed with the catheter holes (3).
3. The ureteral stent tube according to claim 1, characterized in that: the tail end of the film bag (4) is an annular opening (7), a traction wire (5) is arranged in the annular opening (7), and one end of the traction wire (5) is fixed on the pipe wall cross section of the pipe body (1).
4. A ureteral stent according to claim 3, characterized in that: the traction wire (5) is a medical nylon wire, a medical cotton wire or a medical hemp wire.
5. A ureteral stent according to claim 1 or 3, characterized in that: the film bag (4) is in a spindle-shaped structure.
6. The ureteral stent tube according to claim 5, characterized in that: a plurality of second urethral catheterization holes (6) are distributed on the film bag (4).
7. The ureteral stent tube according to claim 6, characterized in that: the inner diameter of the capsule body of the film capsule (4) is 0.5-0.8 cm when the capsule body is filled, and the length of the film capsule is 1.5-3.0 cm.
8. The ureteral stent tube according to claim 7, characterized in that: the membrane vesicles (4) are partially indwelled in the bladder (8) of the patient.
9. The ureteral stent tube according to claim 1, characterized in that: the tube body (1) is made of medical polymer material, and the medical polymer material is polyurethane.
10. The ureteral stent tube according to claim 1 or 2, characterized in that: the curved head end (2) is formed by a tube body coiling, and is a J-shaped head end, and the ureteral stent tube (100) is placed in a renal pelvis (9) of a patient through the J-shaped head end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321251923.5U CN219743662U (en) | 2023-05-19 | 2023-05-19 | Ureteral stent tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321251923.5U CN219743662U (en) | 2023-05-19 | 2023-05-19 | Ureteral stent tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219743662U true CN219743662U (en) | 2023-09-26 |
Family
ID=88086475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321251923.5U Active CN219743662U (en) | 2023-05-19 | 2023-05-19 | Ureteral stent tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219743662U (en) |
-
2023
- 2023-05-19 CN CN202321251923.5U patent/CN219743662U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |