CN113598862B - Ureter plugging device - Google Patents
Ureter plugging device Download PDFInfo
- Publication number
- CN113598862B CN113598862B CN202110803899.0A CN202110803899A CN113598862B CN 113598862 B CN113598862 B CN 113598862B CN 202110803899 A CN202110803899 A CN 202110803899A CN 113598862 B CN113598862 B CN 113598862B
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- Prior art keywords
- cylinder
- piston
- ureter
- plugging
- injection
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/1204—Type of occlusion temporary occlusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12181—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device formed by fluidized, gelatinous or cellular remodelable materials, e.g. embolic liquids, foams or extracellular matrices
Abstract
The invention designs a ureter plugging device which comprises a detachably connected injection cylinder and a plugging guide pipe, wherein the injection cylinder comprises a cylinder body and a piston rod which are detachably connected, an operation pipeline which is coaxial with the cylinder body is arranged in the cylinder body, a plugging joint is formed at the bottom end of the cylinder body by the operation pipeline, an injection hole is formed in the operation pipeline, the piston rod comprises a piston shaft, a piston and a piston handle which are arranged at two ends of the piston shaft, an operation channel is arranged in the piston shaft in a hollow mode, and the plugging guide pipe comprises the injection cylinder joint and a guide pipe. The invention firstly seals the tail end of the ureter in operation, thereby avoiding the problem of tumor implantation caused by the fact that tumor cells move out along with urine or exudates from the tail end of the ureter after the tumor is extruded in operation, the tissue structures such as blood vessels, nerves, lymph nodes, lymphatic vessels and the like around the bladder are not easily damaged when the tumor cells enter the ureter for blocking, and the device completely exits from a human body after the ureter blocking is finished, so that the problem of infection or vesical calculus is not induced.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a ureter plugging device.
Background
The upper urinary tract (including kidneys and ureters) urothelial cancer mainly includes renal pelvis cancer and ureter cancer, and the upper urothelial cancer is a common disease of urinary surgery, and the incidence rate thereof is continuously rising in recent years, and the surgical treatment methods for the upper urothelial cancer are gradually diversified. Due to the anatomical structure and functional specificity of the urinary system, tumor control and reduction of post-operative tumor cell implantation in the surgical treatment of upper urothelial cancer has been one of the challenges facing urologists. The upper urothelial cancer is easy to relapse after operation and is planted in the abdomen and the pelvis, multiple operations, chemical drug treatment or radiation treatment are often required, and various complex complications frequently appear in the course of treatment often bring trouble to clinicians and patients. At present, the known surgical treatment method for the upper urinary tract epithelial cancer mainly comprises the following steps: radical resections of renal pelvis cancer and radical resections of ureteral cancer (the resection range is the whole section of the kidney and ureter on the diseased side), both open surgical routes and laparoscopic assisted surgical routes may be used. However, in the operation process, the treatment methods of the tumor distal ureter are various, and at present, no unified operation method and technical specification exist, and the treatment methods mainly comprise: transurethral ureter distal cuffed electrotomy (including end jaw occlusion and no occlusion treatment), open surgery or laparoscopic distal ureter and surrounding bladder wall excision. Different methods for treating the tumor distal ureter operation have advantages and disadvantages, but no unified standard operation mode is available at present. The risk of tumor cell abdomen pelvic cavity planting can be reduced by the end clamp plugging after the sleeve-shaped electrotomy of the tail end of the transurethral ureter, but the operation space is limited by the limitation of transurethral operation, the cost of the clamp plugging equipment is high, and the operation learning curve is long; the risk of tumor cell abdomen pelvic cavity planting is greatly increased by the patients with the tail end not blocked after the sleeve-shaped electrotomy at the tail end of the urethra and the ureter; due to the limitation of pelvic cavity operation space, the risk of peripheral large blood vessels and important nerve injury exists in the excision process of the distal ureter and the peripheral bladder wall under an open operation or a laparoscope, the bladder wall is often closed by using a non-absorbable biological clamp, a metal suture nail or a suture line during the operation, and the probability of secondary bladder calculus and infection after the operation is high. In resecting the distal ureter, well-known surgical principles are: firstly, controlling the ureter at the far end of the tumor to reduce the planting of tumor cells along with urine; the kidneys and free whole ureter were resected. Some patients have local tumor recurrence or tumor implantation in abdomen and pelvis or great vessel and important nerve injury after radical excision operation of renal pelvis cancer or ureter cancer, and secondary bladder stones and infections after operation. The main reasons for this analysis may be: (1) The ureter end is not sealed in advance in the operation, and tumor cells are removed from the ureter end along with urine or exudates after tumor extrusion in the operation, so that tumor implantation is caused; (2) The tissue structures of the tail end of the ureter, the blood vessels around the bladder, nerves, lymph nodes, lymphatic vessels and the like are complex, the pelvic space is narrow, the tissue structures are easy to damage in the operation process of pelvic surgery, and the surgery risk of a patient is increased; (3) If the non-absorbable biological clamp, the metal suture nail or the suture is used for closing the bladder wall in the operation, the biological clamp, the suture nail or the suture nail is always exposed in the bladder cavity in the healing process of the bladder wall of the patient after the operation, so that infection or vesical calculus is induced, and part of the patient needs to be continuously treated for a long time, thereby greatly increasing psychological and economic burden of the patient. So far, no very effective ureter blocking device or equipment for blocking a ureter at a tumor distal end is reported in radical resection operation of renal pelvis cancer or ureter cancer, and therefore, a ureter blocking device needs to be designed.
Disclosure of Invention
The invention aims to solve the problems, and designs a ureteral occluder.
In order to solve the technical problems and achieve the technical effects, the invention is realized by the following technical contents:
the ureteral occluder comprises an injection tube and an occlusion catheter, wherein the occlusion catheter is detachably connected with the injection tube; the injection cylinder comprises a cylinder body and a piston rod which are detachably connected; an operation pipeline coaxial with the cylinder is arranged in the cylinder, the operation pipeline extends to the outer side of the bottom end of the cylinder to form a plugging joint, an injection hole is formed in the inner side of the bottom end of the cylinder, the top of the cylinder is open, and holding lugs are arranged on the wall surfaces of the cylinder at two sides of the opening; the piston rod comprises a piston shaft, a piston and a piston handle, wherein the piston and the piston handle are arranged at two ends of the piston shaft, and an operation channel is arranged in the piston shaft in a hollow manner, penetrates through the piston handle and is communicated with the outside; the plugging catheter comprises a syringe connector and a guide tube which are integrally connected.
Further, the injection holes are symmetrically arranged and penetrate through the operation pipeline, and an included angle of 30-60 degrees is formed between the injection hole channel and the bottom end of the cylinder body.
Further, the diameter of the operating channel is the same as the outer diameter of the operating pipeline.
Further, the inner diameter of the syringe connector is the same as the outer diameter of the plugging connector.
Further, the inner diameter of the guide pipe is the same as that of the operation pipeline, and graduation marks are marked on the outer side of the guide pipe.
Further, the piston outer diameter is the same as the cylinder inner diameter.
Further, the guide tube ends are over-chamfered.
Further, scale marks are marked on the outer side of the cylinder body.
The invention further aims to provide a using method of the ureteral occluder, which comprises the following steps:
step one, pushing an operation channel of a piston rod into a cylinder body along an operation pipeline, pushing air in the cylinder body out of an injection hole, finding an opening of a ureter on one side to be plugged under a ureteroscope, guiding a guide wire to be placed into the ureter along the ureteroscope through the operation pipeline, and then exiting the injection cylinder.
And step two, a guide tube of the plugging catheter is placed into the ureter through the opening of the urethra and the ureter along the guide wire, the depth of the guide tube entering the ureter is adjusted according to the plugging position under the direct view of the ureteroscope, and then the guide wire is pushed out.
And thirdly, blocking an operation channel on the piston handle by using a finger, pulling up the piston, extracting the hardening agent by using the injection cylinder, enabling the hardening agent to enter the cylinder body through the injection hole, connecting the blocking joint with the injection cylinder joint, injecting the hardening agent into the ureter under the direct view of a ureteroscope to block the ureter, and injecting the hardening agent while exiting the blocking catheter.
The beneficial effects of the invention are as follows:
(1) The invention can seal the ureter end in advance in the operation, and avoid the problem of tumor implantation caused by the fact that tumor cells move out from the ureter end along with urine or exudates after tumor extrusion in the operation.
(2) The invention enters the ureter through the urethra to be plugged, thereby reducing the operation risk of patients. The ureter end and the perivesical blood vessels, nerves, lymph nodes, lymphatic vessels and other tissue structures are complex, the pelvic cavity space is narrow, the tissue structures are easy to damage in the operation process of pelvic cavity operation, and the operation risk of a patient is increased.
(3) The device is simple in structure, the device completely exits the human body after the ureter is plugged, the problem that infection or vesical calculus is caused by closing the bladder wall by using a non-absorbable biological clamp, a metal suture nail or a suture line in the past is avoided, and psychological pressure and economic burden of a patient are reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the overall structure of a ureteral occluder;
fig. 2 is a schematic diagram of the connection structure of the ureteral occluder;
fig. 3 is a schematic cross-sectional view of a ureteral occluder.
In the drawings, the list of components represented by the various numbers is as follows:
1-syringe, 11-barrel, 111-operating tubing, 112-stopper joint, 113-injection hole, 114-grip ear, 12-piston rod, 121-piston shaft, 122-piston, 123-piston handle, 124-operating channel, 2-stopper catheter, 21-syringe joint, 22-guide tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1-3, a ureteral occluder comprises an injection cylinder 1 for injecting an occluding agent and guiding a guide wire into a urethra, an occluding catheter 2 for positioning an occluding point and delivering the occluding agent, wherein the occluding catheter 2 is detachably connected with the injection cylinder 1 and can be operated in a distributed manner; the injection tube 1 comprises a tube 11 and a piston rod 12 which are detachably connected; the outside of the cylinder 11 is marked with scale marks so as to be convenient for reading the injection quantity of the plugging agent, an operation pipeline 111 coaxial with the cylinder 11 is arranged in the cylinder 11 so as to guide a guide wire to enter a ureter through a urethra, a plugging joint 112 is formed on the outside of the bottom end of the cylinder 11 and can be connected with a plugging guide pipe 2, an injection hole 113 is formed on the inside of the bottom end of the cylinder 11 in the operation pipeline 111 so as to be convenient for extracting and injecting the plugging agent, the injection hole 113 is symmetrically arranged and penetrates through the operation pipeline 111, and an included angle of 30-60 degrees is formed between a channel of the injection hole 113 and the bottom end of the cylinder 11 so as to avoid the problem that the guide wire is wrongly inserted into the injection hole 113 and is coiled in the injection cylinder 1; the top of the cylinder 11 is open, and holding lugs 114 which are convenient for injection are arranged on the wall surfaces of the cylinder 11 on two sides of the open; the piston rod 12 comprises a piston shaft 121, a piston 122 and a piston handle 123 which are arranged at two ends of the piston shaft 121, wherein the outer diameter of the piston 122 is the same as the inner diameter of the cylinder 11, so that a vacuum medicament pushing and injecting environment can be created, an operation channel 124 is arranged in the piston shaft 121 in a hollow manner, penetrates through the piston handle 123 and is communicated with the outside, and the diameter of the operation channel 124 is the same as the outer diameter of the operation pipeline 111, so that the piston shaft 121 can slide up and down along the operation pipeline 111 to extract and inject plugging agent; the plugging conduit 2 comprises a syringe connector 21 and a guide tube 22 which are integrally connected, the inner diameter of the syringe connector 21 is the same as the outer diameter of the plugging connector 112, clearance fit can be achieved, the inner diameter of the guide tube 22 is the same as the inner diameter of the operation pipeline 111, plugging agent can be conveyed, graduation marks are marked on the outer side of the guide tube 22, the depth of a plugging position can be conveniently measured, and damage to the urethra is excessively reduced due to chamfering at the tail end of the guide tube 22.
The application of the invention when in use is as follows:
when the ureteroscope is used, a ureteroscope opening at one side to be plugged is found, a guide wire is guided by an operation pipeline 111 to be placed into a ureter along the ureteroscope, then the guide wire is withdrawn from the injection cylinder 1, a guide tube 22 of a plugging catheter 2 is placed into the ureter along the guide wire through the opening of the urethra and the ureter, and the depth of the guide tube 22 entering the ureter is adjusted according to the plugging position under the direct vision of the ureteroscope and then the guide wire is withdrawn; the blocking joint 112 is connected to the syringe joint 21, and a ureteroscope is directly exposed to the ureter to inject a hardening agent into the ureter and the blocking catheter 2 is withdrawn while injecting the hardening agent. The invention firstly seals the tail end of the ureter in operation, thereby avoiding the problem of tumor implantation caused by the fact that tumor cells move out along with urine or exudates from the tail end of the ureter after the tumor is extruded in operation, the tissue structures such as blood vessels, nerves, lymph nodes, lymphatic vessels and the like around the bladder are not easily damaged when the tumor cells enter the ureter for blocking, and the device completely exits from a human body after the ureter blocking is finished, so that the problem of infection or vesical calculus is not induced.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (1)
1. The utility model provides a ureter plugging device, includes ureter plugging device body, its characterized in that: the ureteral occluder body comprises an injection tube and an occlusion catheter, and the occlusion catheter is detachably connected with the injection tube;
the injection cylinder comprises a cylinder body and a piston rod which are detachably connected;
an operation pipeline coaxial with the cylinder is arranged in the cylinder, the operation pipeline extends to the outer side of the bottom end of the cylinder to form a plugging joint, an injection hole is formed in the inner side of the bottom end of the cylinder, the top of the cylinder is open, and holding lugs are arranged on the wall surfaces of the cylinder at two sides of the opening;
the piston rod comprises a piston shaft, a piston and a piston handle, wherein the piston and the piston handle are arranged at two ends of the piston shaft, and an operation channel is arranged in the piston shaft in a hollow manner, penetrates through the piston handle and is communicated with the outside;
the plugging conduit comprises an injection tube joint and a guide tube which are integrally connected;
the injection holes are symmetrically arranged and penetrate through the operation pipeline, and the injection hole channel and the bottom end of the cylinder body form an included angle of 30-60 degrees;
the diameter of the operation channel is in transition fit with the outer diameter of the operation pipeline;
the inner diameter of the injection tube joint is in transition fit with the outer diameter of the plugging joint;
the inner diameter of the guide pipe is the same as that of the operation pipeline, and graduation marks are marked on the outer side of the guide pipe;
the outer diameter of the piston is in interference fit with the inner diameter of the cylinder;
the tail end of the guide pipe is in chamfer transition;
and scale marks are marked on the outer side of the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110803899.0A CN113598862B (en) | 2021-07-16 | 2021-07-16 | Ureter plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110803899.0A CN113598862B (en) | 2021-07-16 | 2021-07-16 | Ureter plugging device |
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| Publication Number | Publication Date |
|---|---|
| CN113598862A CN113598862A (en) | 2021-11-05 |
| CN113598862B true CN113598862B (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110803899.0A Active CN113598862B (en) | 2021-07-16 | 2021-07-16 | Ureter plugging device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208541366U (en) * | 2018-02-22 | 2019-02-26 | 上海英诺伟医疗器械有限公司 | A kind of plugging device with guidewire lumen |
| CN110840504A (en) * | 2019-10-28 | 2020-02-28 | 张福霖 | Ureter plugging device with sacculus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012082990A2 (en) * | 2010-12-15 | 2012-06-21 | Allyson Cortney Berent | Ureteral bypass devices and procedures |
| CN203794340U (en) * | 2014-05-05 | 2014-08-27 | 浙江海讯印染有限公司 | Drum-type bobbin winder with good yarn guide effect |
| CN204723576U (en) * | 2015-06-08 | 2015-10-28 | 黄向江 | Stone conduit is got in a kind of novel shutoff |
| CN106037864B (en) * | 2016-07-21 | 2019-08-06 | 李勇 | A kind of injection aquagel plugging device for ureteroscope lithotrity |
| CN106264642B (en) * | 2016-07-27 | 2019-06-28 | 湖南瑞邦医疗科技发展有限公司 | Disposable temperature control liquid gel occlusion catheter |
| ES2929743T3 (en) * | 2017-10-17 | 2022-12-01 | Innovex Medical Co Ltd | dilatable balloon catheter |
| MX2020011581A (en) * | 2018-05-04 | 2021-01-29 | Lipac Oncology Llc | Balloon catheter. |
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2021
- 2021-07-16 CN CN202110803899.0A patent/CN113598862B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208541366U (en) * | 2018-02-22 | 2019-02-26 | 上海英诺伟医疗器械有限公司 | A kind of plugging device with guidewire lumen |
| CN110840504A (en) * | 2019-10-28 | 2020-02-28 | 张福霖 | Ureter plugging device with sacculus |
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| Publication number | Publication date |
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| CN113598862A (en) | 2021-11-05 |
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