CN209864988U - Disposable ureter sacculus expansion pipe under direct-view - Google Patents
Disposable ureter sacculus expansion pipe under direct-view Download PDFInfo
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- CN209864988U CN209864988U CN201822016511.9U CN201822016511U CN209864988U CN 209864988 U CN209864988 U CN 209864988U CN 201822016511 U CN201822016511 U CN 201822016511U CN 209864988 U CN209864988 U CN 209864988U
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- catheter
- dilatation
- transparent
- balloon
- disposable
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Abstract
The utility model discloses a ureter sacculus expansion pipe under disposable look at, this ureter sacculus expansion pipe under disposable look at includes disposable transparent pipe, has seted up the central channel who is used for placing the endoscope in the transparent pipe, has the expansion sacculus on the periphery wall of transparent pipe. The ureteral balloon dilatation catheter is internally provided with a central channel capable of placing an endoscope, the catheter is made of transparent materials, the outer wall of the catheter is provided with a hydrophilic coating, the transparent catheter is convenient for the endoscope in the central channel to observe the state of the inner wall of the ureter outside the transparent catheter in real time, and the dilatation degree and the dilatation effect of the dilatation balloon on a narrow section of the ureter are monitored in real time, a contrast agent is not required to be injected into the dilatation balloon, radiography in operation is not required, and radiation injury of doctors and patients is avoided; the disposable transparent catheter is safe and sanitary, and greatly avoids the risk of cross infection caused by repeated use; and the production cost is low, and the use is convenient.
Description
Technical Field
The utility model belongs to the technical field of ureter expansion, concretely relates to disposable ureter sacculus expansion pipe under looking directly.
Background
The ureter is connected with the renal pelvis at the upper part and the bladder at the lower part, and is a pair of slender pipelines. A healthy ureter has 3 normal physiological curves, i.e., physiological stenoses, a first stenosed segment at the transition between the renal pelvis and the ureter (i.e., the origin of the ureter), a second stenosed segment at the transiliac junction of the ureter, and a third stenosed segment at the inner wall of the bladder; these stenoses are sites where stones, blood clots, and necrotic tissue tend to lodge. Ureteral stenosis refers to a condition in which a part or the whole of a lumen of a ureter is normally narrow due to various reasons, and the continuity of the lumen is not interrupted, but upper urinary tract obstruction and hydronephrosis are caused to different degrees.
Ureterectasis generally has a good therapeutic effect for treating ureteral stenosis. The chinese utility model patent application with the application number CN201610569646.0 discloses a flexible ureteroscope for complicated lesions of the upper urinary tract, which comprises a sheath tube, wherein the sheath tube comprises a first sheath tube and a second sheath tube at the front end of the first sheath tube, and the first sheath tube and the second sheath tube are detachably and fixedly connected through a lock catch; a pusher is arranged in the first sheath tube, a hose is arranged in the second sheath tube, the tail end of the hose is connected with the pusher, and the pusher is used for pushing the hose to move along the sheath tube so that the hose extends out of the front end of the sheath tube to drag stones; the outer wall of the front end of the second sheath tube is provided with an expansion air bag.
The flexible ureteroscope adopts a sheath tube and an expansion air bag arranged at the front end of the sheath tube to expand the narrow ureteroscope, but the flexible ureteroscope is a slender instrument consisting of a light guide fiber, a working cavity and various working accessories with different purposes, and is mainly used for surgical operation. The inner diameter of a main catheter of the disposable ureteral balloon dilator used in the market at present is small, only a zebra guide wire can be accommodated to pass through, an endoscope is difficult to place to directly observe the condition of a ureteral stenosis part and the real-time condition during dilation, and contrast medium is required to be injected to carry out dynamic observation during dilation, so that a certain radiation hazard is caused to doctors and patients.
SUMMERY OF THE UTILITY MODEL
The invention of the present application aims to provide a disposable direct-view ureteral balloon dilatation catheter that can monitor the degree and effect of balloon dilatation in real time without intra-operative imaging.
In order to achieve the above purpose, the technical solution of the present application is as follows:
the utility model provides a ureter sacculus expansion pipe under disposable direct vision, includes disposable transparent pipe, transparent pipe in seted up and be used for placing the central channel of endoscope, transparent pipe's periphery wall on have the expansion sacculus.
The ureteral balloon dilatation catheter is internally provided with a central channel capable of containing an endoscope, the catheter is made of transparent materials, and accords with certain length and hardness according to physiological structures, the transparent catheter facilitates the endoscope in the central channel to observe the state of the inner wall of the ureter outside the transparent catheter in real time, monitors the dilatation degree and the dilatation effect of the dilatation balloon on a narrow section of the ureter in real time, does not need to inject a contrast medium into the dilatation balloon, does not need to carry out radiography in operation, and avoids radiation damage of doctors and patients.
The disposable transparent catheter is safe and sanitary, so that the risk of cross infection caused by repeated use is greatly avoided; and the production cost is low, and the use is convenient.
In the disposable direct-view ureteral balloon dilatation catheter, the outer wall of the transparent catheter is provided with a fluid pipeline for communicating the dilatation balloon with the pressure pump.
Preferably, in the disposable direct-view ureteral balloon dilatation catheter, the dilatation balloon is an inflatable dilatation balloon. The gas filling mode is convenient for inflation and deflation, and the observation effect of the endoscope cannot be influenced by transparent air.
In the disposable direct-view ureteral balloon dilatation catheter, the transparent catheter comprises a catheter body and a catheter head, the dilatation balloon is arranged on the periphery of the catheter body, and the outer diameter of the catheter head is gradually reduced from one end close to the catheter body to the other end. The catheter head is in a long taper shape with the outer diameter of the head end (the end far away from the catheter body) smaller than that of the tail end (the end close to the catheter body), and after the long taper catheter head and the transparent catheter with the expansion balloon are integrated, the disposable direct-view ureteral balloon expansion catheter can be more smoothly placed into a ureter, and the catheter head can also expand a mild narrow section of the ureter in advance without starting the expansion balloon; when the narrow section is longer or scars are obviously formed, the expansion balloon is started, two expansion modes are integrated, the flexible and practical expansion can be realized as far as possible according to the ureter strictures of different types, the complications caused by improper expansion are reduced, and the utilization rate of the transparent catheter is improved.
In the disposable direct-view ureteral balloon dilatation catheter, the catheter body and the catheter head are integrally arranged; the outer walls of the catheter body and the catheter head are provided with hydrophilic coatings. The hydrophilic coating can improve the lubricity of the transparent catheter when placed in a ureter.
In the disposable ureteral balloon dilatation catheter under direct vision, the outer wall of the transparent catheter is provided with millimeter scale marks which are convenient for the endoscope to measure the length of the ureteral stenosis section. The scale lines are convenient for the endoscope to measure the length of the narrow section of the ureter so as to push the transparent catheter again in the range of proper narrow indication, and the balloon is placed at the narrow section, so that the expansion balloon is inflated and expanded under the direct vision of the endoscope, and the expansion degree and the expansion effect are observed and collected in real time.
In the disposable direct-view ureteral balloon dilatation catheter, the scale marks extend from the head of the catheter to the inner side of the dilatation balloon. Or the scale mark extends from the front end of the catheter body to the inner side of the expansion balloon. Namely, the expansion balloon can be arranged at the front end of the catheter body, also can be arranged at the middle front end of the catheter body, and the expansion balloon is preferably arranged at the middle front end of the catheter body, so that the outer diameters of the catheter head, the catheter body and the expansion balloon are gradually transited, and unnecessary mechanical damage to a narrow section of a ureter caused by transparent catheter pushing is reduced. However, no matter where the measuring instrument is arranged, the scale mark can be ensured to extend to the outside of the expansion balloon so as to ensure that the endoscope can measure the length of the narrow section of the ureter.
Of course, when the dilatation balloon is arranged at the middle front end of the catheter body, the graduation marks can also extend from the catheter head to the inner side of the dilatation balloon.
In the disposable ureteral balloon dilatation catheter under direct vision, the tail end of the transparent catheter is provided with a sealing cap, and the sealing cap is provided with a first through hole for a zebra guide wire to pass through and a second through hole for an endoscope to pass through.
In the disposable ureteral balloon dilatation catheter under direct vision, the transparent catheter is provided with a perfusion branch pipe which is communicated with the central channel and is close to the tail end of the transparent catheter. The perfusion branch pipe is convenient for injecting perfusion liquid into the central channel so as to wash away blood generated during expansion and keep the operation visual field clear.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the ureteral balloon dilatation catheter is internally provided with a central channel capable of containing an endoscope, the catheter is made of transparent materials, the transparent catheter is convenient for the endoscope in the central channel to observe the state of the inner wall of the ureter outside the transparent catheter in real time, and the dilatation degree and the dilatation effect of the dilatation balloon on a ureteral narrow section are monitored in real time, a contrast agent is not required to be injected into the dilatation balloon, radiography in an operation is not required to be carried out, and radiation damage of doctors and patients is avoided.
(2) The disposable transparent catheter is safe and sanitary, and greatly avoids the risk of cross infection caused by repeated use; and the production cost is low, and the use is convenient.
Drawings
Fig. 1 is a schematic structural view of the disposable direct-view lower ureteral balloon dilatation catheter of the utility model;
fig. 2 is a using state diagram of the ureteral balloon dilatation catheter under the disposable direct vision of the utility model.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Example 1
As shown in fig. 1 and fig. 2, the ureteral balloon dilatation catheter for direct viewing of the present embodiment comprises a disposable transparent catheter 1, a hydrophilic coating (not shown in the figure) is provided on the periphery of the transparent catheter, the transparent catheter 1 comprises a catheter body 11 and a catheter head 12 which are integrally provided; the catheter body 11 is cylindrical, the catheter head 12 is tapered, the outer diameter of the catheter head 12 is gradually reduced from the outer diameter of the head (the end far away from the catheter body 11) to the tail (the end close to the catheter body 11), and a central channel 13 penetrating through the catheter head 12 is formed in the catheter body 11.
A rubber double-hole sealing cap 2 is mounted at the tail end (the end far away from the catheter head 12) of the catheter body 11, and a first through hole 21 for the zebra guide wire 3 to pass through and a second through hole 22 for the endoscope 4 to pass through are formed in the rubber double-hole sealing cap 2. The outer diameter of the first through hole 21 is larger than that of the zebra guide wire 3, so that the zebra guide wire 3 can be pushed in or withdrawn at any time; the outer diameter of the second through hole 22 is adapted to the outer diameter of the endoscope 4 to fix the endoscope 4.
As shown in fig. 1 and 2, an inflatable balloon 5 and a fluid conduit 6 for communicating the inflatable balloon 5 with a pressure pump not shown are fixed to the outer peripheral wall of the catheter main body 11, the inflatable balloon 5 of the present embodiment is an inflatable balloon 5, and the pressure pump is used for injecting transparent gas such as air into the fluid conduit 6 and the inflatable balloon 5.
In this embodiment, the dilatation balloon 5 is mounted at the middle front end of the catheter body 11 (or directly mounted at the front end of the catheter body 11), and a millimeter-scale graduation line which is not shown in the millimeter-scale graduation line chart and is convenient for the endoscope 4 to measure the length of the ureteral stenosis is arranged on the outer wall of the catheter body 11, and the graduation line extends from the front end of the catheter body 11 to the inner side of the dilatation balloon 5, and even extends to the catheter head 12 at the same time.
As shown in FIGS. 1 and 2, the main body 11 further has a perfusion branch tube 7 connected to the central channel 13 and near the end of the transparent catheter 1, and perfusion fluid can be injected into the central channel 13 through the perfusion branch tube 7.
The working principle of the disposable ureteral balloon dilatation catheter under direct vision of the embodiment is as follows:
firstly, probing the ureter by using a semi-rigid ureteroscope, and after finding a narrow part, placing a zebra guide wire 3; then inserting the catheter head 12 of the transparent catheter 1 into the kidney far end of the zebra guide wire 3, placing the endoscope 4 into the catheter head 12 from the second through hole 22 of the rubber double-hole sealing cap 2, and installing the rubber double-hole sealing cap 2 to the tail end of the catheter body 11 after the zebra guide wire 3 passes through the first through hole 21 of the rubber double-hole sealing cap 2; under the monitoring of the endoscope 4, the transparent catheter 1 is pushed to the narrow part of the ureter and is firstly expanded by the catheter head part 12; because the catheter body 11 (or the catheter head 12) is provided with scale lines, the length of the narrow section of the ureter can be measured under the endoscope 4, the transparent catheter 1 is pushed in the range of proper narrow indication, the expansion balloon 5 is placed at the narrow section, the expansion balloon 5 is inflated and expanded under the direct vision of the endoscope 4, and the expansion degree and the expansion effect are observed and collected in real time; during the expansion process, perfusion fluid can be injected into the central channel 13 through the perfusion branch pipe 7 so as to wash away blood generated during the expansion process and keep the operation visual field clear.
Claims (10)
1. The utility model provides a ureter sacculus expansion pipe under disposable direct vision, characterized by includes disposable transparent pipe (1), transparent pipe (1) in seted up central channel (13) that are used for placing endoscope (4), the peripheral wall of transparent pipe (1) on have expansion sacculus (5).
2. The disposable direct-view ureteral balloon dilatation catheter as claimed in claim 1, characterized in that the outer wall of the transparent catheter (1) is provided with a fluid conduit (6) for communicating the dilatation balloon (5) with a pressure pump.
3. The disposable direct-view ureteral balloon dilatation catheter as claimed in claim 1, characterized in that the dilatation balloon (5) is an inflatable dilatation balloon (5).
4. The disposable direct-view ureteral balloon dilatation catheter as claimed in any of the claims 1-3, characterized in that the transparent catheter (1) comprises a catheter body (11) and a catheter head (12), the dilatation balloon (5) is arranged at the periphery of the catheter body (11), and the outer diameter of the catheter head (12) is gradually reduced from one end close to the catheter body (11) to the other end.
5. The disposable direct-view ureteral balloon dilatation catheter as claimed in claim 4, characterized in that the catheter body (11) and the catheter head (12) are integrally arranged; the outer walls of the catheter body (11) and the catheter head (12) are provided with hydrophilic coatings.
6. The disposable direct-view ureteral balloon dilatation catheter as claimed in claim 4, characterized in that the outer wall of the transparent catheter (1) is provided with millimeter scale lines for facilitating the endoscope (4) to measure the length of the ureteral stenosis.
7. The disposable direct-view ureteral balloon dilatation catheter of claim 6 wherein the graduation marks extend from the catheter head (12) to the inside of the dilatation balloon (5).
8. The disposable direct-view ureteral balloon dilatation catheter as claimed in claim 6, characterized in that the graduation lines extend from the front end of the catheter body (11) to the inside of the dilatation balloon (5).
9. The disposable direct-view ureteral balloon dilatation catheter as claimed in any of the claims 1-3 and 5-8, characterized in that the tail end of the transparent catheter (1) is provided with a cap (2), and the cap (2) is provided with a first through hole (21) for the zebra guide wire (3) to pass through and a second through hole (22) for the endoscope (4) to pass through.
10. The disposable direct-view ureteral balloon dilatation catheter according to any of the claims 1-3 and 5-8, characterized in that the transparent catheter (1) is provided with perfusion branches (7) communicating with the central channel (13) and near the tail end of the transparent catheter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822016511.9U CN209864988U (en) | 2018-12-03 | 2018-12-03 | Disposable ureter sacculus expansion pipe under direct-view |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822016511.9U CN209864988U (en) | 2018-12-03 | 2018-12-03 | Disposable ureter sacculus expansion pipe under direct-view |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209864988U true CN209864988U (en) | 2019-12-31 |
Family
ID=68945521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822016511.9U Expired - Fee Related CN209864988U (en) | 2018-12-03 | 2018-12-03 | Disposable ureter sacculus expansion pipe under direct-view |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209864988U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111228631A (en) * | 2020-01-13 | 2020-06-05 | 河南大学淮河医院 | Ureteroscope guide wire with different color mark depths |
| CN113813495A (en) * | 2021-10-08 | 2021-12-21 | 山东大学第二医院 | Ureteroscope expansion sacculus |
-
2018
- 2018-12-03 CN CN201822016511.9U patent/CN209864988U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111228631A (en) * | 2020-01-13 | 2020-06-05 | 河南大学淮河医院 | Ureteroscope guide wire with different color mark depths |
| CN113813495A (en) * | 2021-10-08 | 2021-12-21 | 山东大学第二医院 | Ureteroscope expansion sacculus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20211203 |