CN220477936U - Reducing low-stimulation anti-reflux ureteral stent tube - Google Patents
Reducing low-stimulation anti-reflux ureteral stent tube Download PDFInfo
- Publication number
- CN220477936U CN220477936U CN202321358629.4U CN202321358629U CN220477936U CN 220477936 U CN220477936 U CN 220477936U CN 202321358629 U CN202321358629 U CN 202321358629U CN 220477936 U CN220477936 U CN 220477936U
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- elastic
- pipe body
- bending part
- main body
- ureteral stent
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- 230000000151 anti-reflux effect Effects 0.000 title claims abstract description 13
- 238000005452 bending Methods 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000000638 stimulation Effects 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 210000002700 urine Anatomy 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 5
- 230000036262 stenosis Effects 0.000 description 5
- 208000037804 stenosis Diseases 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 208000000913 Kidney Calculi Diseases 0.000 description 2
- 206010029148 Nephrolithiasis Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 206010020524 Hydronephrosis Diseases 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002757 inflammatory effect Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 230000003907 kidney function Effects 0.000 description 1
- 210000000244 kidney pelvis Anatomy 0.000 description 1
- 230000027939 micturition Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001959 radiotherapy Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 201000002327 urinary tract obstruction Diseases 0.000 description 1
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- Prostheses (AREA)
Abstract
The utility model discloses a variable-diameter low-stimulation anti-reflux ureteral stent tube, which comprises a first bending part, wherein the first bending part is connected with a first tube body, the first tube body is connected with a second tube body, the second tube body is connected with a second bending part, the diameter of the first tube body is larger than that of the second tube body, the first tube body and the second tube body are connected through a variable-diameter part, a plurality of side holes are formed in the first bending part and the first tube body, an oval hole is formed in the joint of the first tube body and the variable-diameter part, and an elastic sealing valve is arranged at the outer side end of the second bending part; the elastic sealing valve comprises an elastic main body, an elastic film which is concave inwards is arranged at the outer side end of the elastic main body, a linear notch is formed in the center of the elastic film, a plurality of axial grooves are formed in the inner wall of the elastic main body, and three Y-shaped brackets are arranged at the inner side end of the elastic main body. The utility model can improve the defects of the prior art, effectively prevent the urine from flowing back, has small stimulation to human body and is convenient for the operation of placing the tube.
Description
Technical Field
The utility model relates to a surgical instrument, in particular to a variable-diameter low-stimulation anti-reflux ureteral stent tube.
Background
Clinically, ureteral stent tubes are implanted and left for treating diseases such as upper urinary tract obstruction and hydronephrosis caused by ureteral stenosis due to kidney stones, ureteral stones and other various reasons (such as inflammatory stenosis, stenosis after radiotherapy and the like), so that further damage to renal functions is delayed or prevented, and possibility and opportunity are provided for further surgery. The pain of the patient caused by the disease is relieved, and the risk of secondary kidney stones caused by ureteral stenosis or recurrent ureteral stenosis after operation is reduced. In order to prevent urine in the bladder from flowing back to the kidney through the inner cavity of the ureteral stent tube during urination, the bladder end of the stent tube is a bending part formed by processing solid diameter variation, and a drainage port and a guide wire inserting port are formed at the joint of the solid end and the hollow tube body.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the variable-diameter low-stimulation anti-reflux ureteral stent which can solve the defects of the prior art, effectively prevent the reflux of urine, has small stimulation to human body and is convenient for the catheterization operation.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows.
The utility model provides a reducing low-stimulation anti-reflux ureteral stent tube, includes first bending part, and first bending part is connected with first body, and first body is connected with the second body, and the second body is connected with the second bending part, the diameter of first body is greater than the diameter of second body, connects through reducing part between first body and the second body, has seted up a plurality of side opening on first bending part and the first body, and oval hole has been seted up to the junction of first body and reducing part, and the outside end of second bending part is provided with the elasticity sealing valve; the elastic sealing valve comprises an elastic main body, an elastic film which is concave inwards is arranged at the outer side end of the elastic main body, a linear notch is formed in the center of the elastic film, a plurality of axial grooves are formed in the inner wall of the elastic main body, three Y-shaped supports are arranged at the inner side end of the elastic main body, and the three Y-shaped supports are annularly arranged.
Preferably, the edge of the outer side end of the elastic main body is provided with a silica gel ring, the edge of the elastic film is connected with the silica gel ring, and the distance between the connecting part of the elastic film and the silica gel ring and the top surface of the outer side end of the elastic main body is 0.1-0.15 mm.
Preferably, the top of the Y-shaped bracket is provided with an arc-shaped part.
Preferably, the ratio of the lengths of the first pipe body, the variable-diameter portion and the second pipe body is 3:1:1.
Preferably, the difference between the nominal outer diameters of the first pipe body and the second pipe body is 0.33 to 0.66mm.
Preferably, the aperture of the side hole is 1.0-1.2 mm.
Preferably, the ratio of the length of the major axis to the length of the minor axis of the elliptical hole is 2:1-3:1.
The beneficial effects brought by adopting the technical scheme are as follows: the utility model can effectively reduce the stimulation of the stent tube to the bladder, and the guide wire penetrates through the elastic sealing valve at the outer side end of the second bending part, thereby facilitating the tube placing operation.
Drawings
Fig. 1 is a block diagram of one embodiment of the present utility model.
FIG. 2 is a block diagram of an elastomeric block valve in accordance with one embodiment of the present utility model.
FIG. 3 is an enlarged view of a portion of the attachment of the elastic membrane to the elastic body in one embodiment of the utility model.
In the figure: 1. a first bending portion; 2. a first tube body; 3. a second tube body; 4. a second bending portion; 5. a variable diameter portion; 6. a side hole; 7. an elliptical hole; 8. an elastic closing valve; 9. an elastic body; 10. an elastic film; 11. a linear incision; 12. an axial groove; 13. a Y-shaped bracket; 14. a silica gel ring; 15. an arc-shaped part.
Detailed Description
Referring to fig. 1-3, one specific embodiment of the utility model comprises a first bending part 1, wherein the first bending part 1 is connected with a first pipe body 2, the first pipe body 2 is connected with a second pipe body 3, the second pipe body 3 is connected with a second bending part 4, the diameter of the first pipe body 2 is larger than that of the second pipe body 3, the first pipe body 2 and the second pipe body 3 are connected through a reducing part 5, a plurality of side holes 6 are formed in the first bending part 1 and the first pipe body 2, an oval hole 7 is formed in the joint of the first pipe body 2 and the reducing part 5, and an elastic sealing valve 8 is arranged at the outer side end of the second bending part 4; the elastic sealing valve 8 comprises an elastic main body 9, an elastic film 10 recessed inwards is arranged at the outer side end of the elastic main body 9, a linear notch 11 is formed in the center of the elastic film 10, a plurality of axial grooves 12 are formed in the inner wall of the elastic main body 9, three Y-shaped brackets 13 are arranged at the inner side end of the elastic main body 9, and the three Y-shaped brackets 13 are annularly arranged. Through setting up hollow reducing portion 5, penetrate the seal wire from the elastic closure valve 8 of second bending part outer 4 side end, not only reduced the stimulation to the bladder, be convenient for put the pipe operation moreover. The axial groove 12 is formed in the inner wall of the elastic sealing valve 8, so that the radial flexibility of the elastic sealing valve 8 can be improved while the axial support stability is ensured, and the stimulation of the elastic sealing valve 8 to a human body is reduced. The inwardly concave elastic membrane 10 facilitates threading of the guidewire while also acting to prevent urine backflow. The Y-shaped stent 13 is used for guiding and supporting the guide wire. The side holes 6 lead the inside and the outside of the tube body to be unobstructed and facilitate drainage. The oval hole 7 enlarges the drainage outlet channel, so that the downstream is smoother.
The edge of the outer side end of the elastic main body 9 is provided with a silica gel ring 14, the edge of the elastic film 10 is connected with the silica gel ring 14, and the distance between the joint of the elastic film 10 and the silica gel ring 14 and the top surface of the outer side end of the elastic main body 9 is 0.1-0.15 mm. The elastic film 10 is arranged on the inner side of the elastic main body 9 through the silica gel ring 14, so that the stress deformation uniformity of the elastic film 10 can be improved, and the non-return effect can be improved.
The top of Y type support 13 is provided with arc portion 15, can improve the smooth and easy degree that the seal wire penetrated.
The ratio of the lengths of the first pipe body 2, the variable diameter portion 5 and the second pipe body 3 is 3:1:1. The difference between the nominal outer diameters of the first pipe body 2 and the second pipe body 3 is 0.33-0.66 mm. The aperture of the side hole 6 is 1.0-1.2 mm. The ratio of the length of the major axis to the length of the minor axis of the elliptical hole 7 is 2:1-3:1. The first bend 1 is made of a medical grade developing TPU material, which serves to increase drainage area and prevent removal from the renal pelvis. The second bending part 4 is made of medical grade developing soft TPU material or medical silica gel material, which is beneficial for the guide wire to smoothly pass through the catheter support and can prevent the urine from flowing back.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a reducing low-stimulation anti-reflux ureteral stent tube, includes first bending part (1), and first bending part (1) is connected with first body (2), and first body (2) are connected with second body (3), and second body (3) are connected with second bending part (4), its characterized in that: the diameter of the first pipe body (2) is larger than that of the second pipe body (3), the first pipe body (2) and the second pipe body (3) are connected through a reducing part (5), a plurality of side holes (6) are formed in the first bending part (1) and the first pipe body (2), an elliptical hole (7) is formed in the joint of the first pipe body (2) and the reducing part (5), and an elastic sealing valve (8) is arranged at the outer side end of the second bending part (4); the elastic sealing valve (8) comprises an elastic main body (9), an elastic film (10) recessed inwards is arranged at the outer side end of the elastic main body (9), a linear notch (11) is formed in the center of the elastic film (10), a plurality of axial grooves (12) are formed in the inner wall of the elastic main body (9), three Y-shaped supports (13) are arranged at the inner side end of the elastic main body (9), and the three Y-shaped supports (13) are annularly arranged.
2. The variable diameter low stimulation anti-reflux ureteral stent tube according to claim 1, characterized in that: the edge of the outer side end of the elastic main body (9) is provided with a silica gel ring (14), the edge of the elastic film (10) is connected with the silica gel ring (14), and the distance between the joint of the elastic film (10) and the silica gel ring (14) and the top surface of the outer side end of the elastic main body (9) is 0.1-0.15 mm.
3. The variable diameter low stimulation anti-reflux ureteral stent tube according to claim 1, characterized in that: the top of Y type support (13) is provided with arc portion (15).
4. The variable diameter low stimulation anti-reflux ureteral stent tube according to claim 1, characterized in that: the ratio of the lengths of the first pipe body (2), the variable-diameter part (5) and the second pipe body (3) is 3:1:1.
5. The variable diameter low stimulation anti-reflux ureteral stent tube according to claim 1, characterized in that: the difference between the nominal outer diameters of the first pipe body (2) and the second pipe body (3) is 0.33-0.66 mm.
6. The variable diameter low stimulation anti-reflux ureteral stent tube according to claim 1, characterized in that: the aperture of the side hole (6) is 1.0-1.2 mm.
7. The variable diameter low stimulation anti-reflux ureteral stent tube according to claim 1, characterized in that: the ratio of the length of the major axis to the length of the minor axis of the elliptical hole (7) is 2:1-3:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321358629.4U CN220477936U (en) | 2023-05-30 | 2023-05-30 | Reducing low-stimulation anti-reflux ureteral stent tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321358629.4U CN220477936U (en) | 2023-05-30 | 2023-05-30 | Reducing low-stimulation anti-reflux ureteral stent tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220477936U true CN220477936U (en) | 2024-02-13 |
Family
ID=89842913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321358629.4U Active CN220477936U (en) | 2023-05-30 | 2023-05-30 | Reducing low-stimulation anti-reflux ureteral stent tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220477936U (en) |
-
2023
- 2023-05-30 CN CN202321358629.4U patent/CN220477936U/en active Active
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