CN210355644U - Novel urethral stricture expansion and auxiliary indwelling catheter device - Google Patents
Novel urethral stricture expansion and auxiliary indwelling catheter device Download PDFInfo
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- CN210355644U CN210355644U CN201920135570.XU CN201920135570U CN210355644U CN 210355644 U CN210355644 U CN 210355644U CN 201920135570 U CN201920135570 U CN 201920135570U CN 210355644 U CN210355644 U CN 210355644U
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Abstract
The utility model discloses a novel urethral stricture dilation and urinary catheter indwelling assisting device, which comprises a urethral probe, a zebra guide wire and a urethral catheter puncture nail; the urethral probe is provided with a hollow cavity, the front end of the urethral probe is provided with an opening, the side wall of the front end of the urethral probe is provided with a side hole, and the rear end of the urethral probe forms an independent guide wire placing tube and a liquid medicine injection tube respectively; the axis of the guide wire imbedding tube is consistent with that of the urethral probe, and the liquid medicine injection tube is positioned at one side of the guide wire imbedding tube; the outer side wall of the front end of the urethral probe tube is also provided with an expansion sacculus, the expansion sacculus is connected with a sacculus communicating tube arranged in the hollow cavity, and the rear end of the sacculus communicating tube extends out of the urethral probe tube and expands to form the expansion sacculus tube. The device simple structure, reasonable in design, it is easy and simple to handle, avoid expanding the urethra repeatedly and cause the injury of urethra mucous membrane, both saved the time for clinician, reduced the operation degree of difficulty, reduced pain and risk for the patient again.
Description
Technical Field
The utility model relates to the technical field of medical auxiliary equipment, more specifically relates to a novel urethral stricture expands and supplementary device of keeping somewhere ureter.
Background
Catheterization is a common medical operation in clinical medical work, is a conventional preoperative preparation for patients who are subjected to surgery, and is also an important urination means for patients who have difficulty in urination. Urethral stricture is a common condition of urology surgery, and is mainly seen in male patients with urethral trauma, inflammation, postoperative scarring, and moderate-to-severe prostatic hyperplasia. For the part of patients, the conventional catheterization can not smoothly place the catheter to the bladder, and the metal urethral probe is mostly adopted to expand the narrow urethra for many times in clinical medical work, and the traditional urethral expansion mode has several defects: firstly, urethra bougies of different types are used in an incremental mode, the urethra is sequentially expanded, the operation is complicated, and discomfort and pain of a patient can be caused; second, the longitudinal entry of the large urethral sound into the urethral stricture may puncture the normal tissue adjacent to the urethra, resulting in a pseudourethral canal.
Disclosure of Invention
To the problems existing in the prior art, the utility model aims to provide a novel urethral stricture expansion and auxiliary indwelling catheter device.
The novel urethral stricture dilation and urinary catheter indwelling assisting device (hereinafter referred to as a urinary catheter indwelling assisting device) comprises a urethral probe, a zebra guide wire and a catheter puncture nail;
wherein, the urethral probe is provided with a hollow cavity, the front end of the urethral probe is provided with an opening, the side wall of the front end of the urethral probe is provided with a side hole, and the rear end of the urethral probe is respectively provided with an independent guide wire placing tube and a liquid medicine injection tube;
the axis of the guide wire imbedding tube is consistent with that of the urethral probe, and the liquid medicine injection tube is positioned at one side of the guide wire imbedding tube;
the outer side wall of the front end of the urethral probe tube is also provided with an expansion sacculus, the expansion sacculus is connected with a sacculus communicating tube arranged in the hollow cavity, and the rear end of the sacculus communicating tube extends out of the urethral probe tube and expands to form the expansion sacculus tube.
The utility model discloses the above-mentioned supplementary device of keeping somewhere ureter's working process does:
(1) after the urethral probe is fully lubricated, the urethral probe is held by hands, and the urethral probe enters along the urethra to enable the front end of the urethral probe to reach the far end of the urethral stricture (when the urethral probe cannot enter continuously, the position of the front end of the urethral probe is the far end of the urethral stricture);
(2) the zebra guide wire is inserted into a guide wire insertion tube, namely the zebra guide wire enters a hollow cavity of the urethral canal through the guide wire insertion tube and continues to enter the front end of the urethral canal, and the zebra guide wire is continuously pushed to enter the bladder (ensuring the zebra guide wire path exploration and avoiding the expansion of a possible false passage, wherein the entering length of the zebra guide wire is 20-25 cm);
(3) at the moment, the local anesthetic and the lubricant are injected through the liquid medicine injection tube, and the local anesthetic and the lubricant reach a side hole at the front end of the urethral probe through the hollow cavity of the urethral probe to be injected into the narrow part of the urethra in a targeted manner, so that the friction between the urethral probe and the urethral tissue is reduced, and the pain of a patient is relieved; under the guidance of the zebra guide wire, the urethral probe is continuously pushed, so that the front end of the urethral probe passes through the urethral stricture, and the starting end of the expansion balloon reaches the urethral stricture;
(4) water is injected into the balloon dilation tube, water flow reaches the balloon dilation through the balloon communicating tube, and the balloon dilation is filled with the water and gradually dilated, so that the aim of gradually dilating the urethra at the narrow part is fulfilled;
(5) at the moment, the lubricant is injected again through the liquid medicine injection tube, the lubricant can lubricate the plaque hollow cavity and flows out through the side hole at the front end of the urethral probe, so that the friction between the urethral probe and the urethral tissue is reduced; keeping the zebra guide wire in situ, removing the urethral probe, puncturing the front end of the silica gel catheter by using a catheter puncturing nail, perforating, enabling the catheter after perforating to enter the urethra along the zebra guide wire and pass through the original narrow part of the urethra to reach the bladder, discharging the urine through the catheter, and removing the zebra guide wire and fixing the catheter.
The utility model discloses an introduce the zebra seal wire to with the accurate location in the narrow portion of urethra and carry out the urethra expansion of urethra expansion device's expansion sacculus under the guide of zebra seal wire, and put into the bladder with the catheter through the zebra seal wire.
In some specific embodiments, the guide wire placing tube has an inner wall extending outwards to form a guide wire supporting and positioning device; the arrangement of the guide wire supporting and positioning device is convenient for an operator to insert the zebra guide wire into the guide wire embedding tube, and the zebra guide wire is prevented from injuring tissues near the urethra by the error of the operator.
Preferably, the guide wire supporting and positioning device comprises a supporting plate and a guide wire positioning ring arranged on the supporting plate; the guide wire positioning ring is convenient for positioning the zebra guide wire, and the support plate prevents the zebra guide wire from sliding and falling out before entering the guide wire placing cavity.
In some specific embodiments, the support plate is further provided with a finger grip; specifically, the finger grab handle is arranged on the back of the supporting plate, so that an operator can conveniently hold the urethral probe.
In some embodiments, the front end of the urethral catheter is curved to reduce friction between the front end of the urethral catheter and urethral tissue and to reduce resistance of the urethral catheter during advancement.
In some specific embodiments, the urethral probe is marked with scales, so that an operator can clearly determine the advancing progress of the urethral probe and timely judge the approximate position of the urethral probe in the urethral tissue, and therefore, accurate positioning and operation can be realized.
In some specific embodiments, the distance between the starting end of the dilatation balloon and the starting end of the front end of the urethral probe is 1-1.5 cm.
In some specific embodiments, a physiological curve is further arranged between the starting end of the expansion balloon and the starting end of the front end of the urethral probe, and the physiological curve is arranged according to the physiological characteristics of a human body, so that the device is more humanized, and the operator can use the device more easily.
In some specific embodiments, the number of the side holes on the side wall of the front end of the urethral probe is two, or more than two, and the side holes are uniformly distributed on the side wall of the front end of the urethral probe, and specifically, each side hole is 2-4mm away from the front end of the urethral probe, is circular in shape, and has a diameter of 1.5-2.5 mm.
The diameter of the zebra guide wire used in the utility model is 1.5mm, the length is 70-75cm, and the material is nickel-titanium alloy.
The urethral probe used is a hard probe made of acrylonitrile-butadiene-styrene copolymer; meanwhile, the inner diameter of the opening at the front end of the urethral probe is required to be larger than or equal to the diameter of the zebra guide wire, the inner diameter of the opening at the front end is not too large, the zebra guide wire is easily too large in the hollow cavity to be bent, and the inner diameter of the opening at the front end of the urethral probe can be 1.5 mm.
In a specific embodiment, the material of the expansion balloon is nylon material, the cross section of the expansion balloon is circular, the longitudinal section of the expansion balloon is oval, the volume of the expansion balloon is 2-6ml, the length of the expansion balloon is 2-3cm, the wall thickness of the expansion balloon is 0.2mm, the inner wall of the balloon is tightly attached to the outer wall of the front end of the urethral probe, the outer diameter of the balloon before the expansion is 0.8-1cm, and the outer diameter of the balloon after the expansion can reach 1.2-2 cm.
In a specific embodiment, the catheter puncturing nail is made of hard plastic, is made of acrylonitrile-butadiene-styrene copolymer, and is divided into two parts, wherein the upper part is a finger holding part which is cylindrical, the middle part is slightly concave, the length is about 10mm, the diameter is 8mm, the lower part is a sharp part, the length is about 5mm, and the diameter is 1.5 mm.
For the urethral stricture patient who can not successfully put into the catheter in the conventional catheterization, the front end of the urethral probe can be guided to the narrowest part of the urethra by the zebra guide wire, the side hole on the urethral probe is used for injecting lubricant and the urethra is fully expanded by the expansion balloon, the zebra guide wire is reserved and the probe is removed, and the catheter is put into the bladder under the guidance of the zebra guide wire, so that the urethral catheterization of the patient with the stricture urethra is completed.
The utility model has the advantages of simple structure and reasonable design, it is easy and simple to handle, avoid expanding the urethra repeatedly and cause the urethra mucous membrane damage, be applicable to the serious hyperplasia of prostate, the serious narrow patient of urethra that causes such as past operation history institute to urethra scar, both saved the time for clinician, reduced the operation degree of difficulty, reduced pain and risk for the patient again.
Drawings
FIG. 1 is a schematic view of the overall structure of the device for dilating urethral stricture and assisting in indwelling a urinary catheter of the present invention;
description of reference numerals: 1-zebra guidewire; 2-side holes; 3-expanding the balloon; 4-urethral probe; 6-liquid medicine injection pipe; 7-dilation of the balloon duct; 8-finger grab handle; 9-a guide wire positioning ring; 10-catheter puncture nail.
Detailed Description
The present invention will be described in further detail with reference to examples.
As shown in fig. 1, the present embodiment discloses a new urethral stricture dilating and catheter indwelling device, which comprises a urethral probe 4, a zebra guide wire 1 and a catheter puncture needle 10.
Wherein, the urethral probe 4 (the front end of the urethral probe 4 is designed into arc shape, the hemispherical urethral probe 4 is provided with a hollow cavity for reducing the friction force between the front end and the urethral tissue and for reducing the resistance of the urethral probe in the propelling process), the front end of the urethral probe is provided with an opening, the side wall of the front end of the urethral probe is provided with a side hole 2 (the distance between the side hole 2 and the front end of the urethral probe 4 is 2-4mm, the diameter is 1.5-2.5 mm), the rear end of the urethral probe 4 is respectively provided with an independent guide wire placing tube (the guide wire placing tube is used for placing the zebra guide wire 1) and a liquid medicine injection tube 6; the axis of the guide wire embedding tube is consistent with that of the urethral probe 4, and the liquid medicine injection tube 6 is positioned at one side of the guide wire embedding cavity.
In addition, an expansion sacculus 3 is further arranged on the outer side wall of the front end of the urethral probe 4 (the inner wall of the expansion sacculus 3 is tightly attached to the outer wall of the front end of the urethral probe 4, the distance between the starting end of the expansion sacculus 3 and the starting end of the front end of the urethral probe 4 is 1-1.5 cm), the expansion sacculus 3 is connected with a sacculus communicating pipe arranged in the hollow cavity, and the rear end of the sacculus communicating pipe extends out of the urethral probe 4 and expands to form an expansion sacculus pipe 7.
The inner wall of one side of the guide wire imbedding tube extends outwards to form a supporting plate, and a guide wire positioning ring 9 is arranged on the supporting plate; the guide wire positioning ring 9 is convenient for positioning the zebra guide wire 1, and the support plate prevents the zebra guide wire 1 from sliding out before entering the guide wire placing tube.
The back of the supporting plate is also provided with a finger grab handle 8; the finger grab handle 8 is arranged on the back of the supporting plate, so that an operator can conveniently hold the urethral probe.
In this embodiment, a physiological curvature is further disposed between the starting end of the dilatation balloon 3 and the starting end of the front end of the urethral probe 4, and the physiological curvature is configured to meet the physiological characteristics of a human body, so that the device is more humanized and the operator can use the device more easily.
In this embodiment, the urethral probe 4 is marked with scales, so that an operator can clearly determine the advancing progress of the urethral probe 4 and can timely judge the approximate position of the urethral probe 4 in the urethral tissue, thereby realizing accurate positioning and operation.
The diameter of the zebra guide wire 1 is 1.5mm, the length of the zebra guide wire is 70-75cm, and the zebra guide wire is made of nickel-titanium alloy.
The urethral probe 4 is a hard probe made of acrylonitrile-butadiene-styrene copolymer. The inner diameter of the front end opening of the urethral probe 4 is 1.5 mm.
The expansion saccule 3 is made of nylon material, the cross section of the expansion saccule is circular, the longitudinal section of the expansion saccule is elliptical, the volume of the expansion saccule 3 is 2-6ml, the length is 2-3cm, the wall thickness is 0.2mm, the inner wall of the saccule is tightly attached to the outer wall of the front end of the urethral probe, the outer diameter of the saccule before being expanded is 0.8-1cm, and the outer diameter of the saccule after being expanded can reach 1.2-2 cm.
The catheter puncture nail 10 is made of hard plastic, is made of acrylonitrile-butadiene-styrene copolymer, and is divided into two parts, wherein the upper part is a finger holding part which is cylindrical, the middle part is slightly concave, the length is about 10mm, the diameter is 8mm, the lower part is a sharp part, the length is about 5mm, and the diameter is 1.5 mm.
The process of using the device for assisting in indwelling the ureter to assist in indwelling the ureter comprises the following steps:
(1) after the urethral probe is fully lubricated, the urethral probe is held by hands, and the urethral probe enters along the urethra to enable the front end of the urethral probe to reach the far end of the urethral stricture (when the urethral probe cannot enter continuously, the position of the front end of the urethral probe is the far end of the urethral stricture);
(2) the zebra guide wire is inserted into a guide wire insertion tube, namely the zebra guide wire enters a hollow cavity of the urethral canal through the guide wire insertion tube and continues to enter the front end of the urethral canal, and the zebra guide wire is continuously pushed to enter the bladder (ensuring the zebra guide wire path exploration and avoiding the expansion of a possible false passage, wherein the entering length of the zebra guide wire is 20-25 cm);
(3) at the moment, the local anesthetic and the lubricant are injected through the liquid medicine injection tube, and the local anesthetic and the lubricant reach a side hole at the front end of the urethral probe through the hollow cavity of the urethral probe to be injected into the narrow part of the urethra in a targeted manner, so that the friction between the urethral probe and the urethral tissue is reduced, and the pain of a patient is relieved; under the guidance of the zebra guide wire, the urethral probe is continuously pushed, so that the front end of the urethral probe passes through the urethral stricture, and the starting end of the expansion balloon reaches the urethral stricture;
(4) water is injected into the balloon dilation tube, water flow reaches the balloon dilation through the balloon communicating tube, and the balloon dilation is filled with the water and gradually dilated, so that the aim of gradually dilating the urethra at the narrow part is fulfilled;
(5) at the moment, the lubricant is injected again through the liquid medicine injection tube, the lubricant can lubricate the plaque hollow cavity and flows out through the side hole at the front end of the urethral probe, so that the friction between the urethral probe and the urethral tissue is reduced; keeping the zebra guide wire in situ, removing the urethral probe, puncturing the front end of the silica gel catheter by using a catheter puncturing nail, perforating, enabling the catheter after perforating to enter the urethra along the zebra guide wire and pass through the original narrow part of the urethra to reach the bladder, discharging the urine through the catheter, and removing the zebra guide wire and fixing the catheter.
Claims (8)
1. A novel urethral stricture dilation and urinary catheter indwelling assisting device is characterized by comprising a urethral probe (4), a zebra guide wire (1) and a catheter puncture nail (10);
the urethral probe (4) is provided with a hollow cavity, the front end of the urethral probe (4) is provided with an opening, the side wall of the front end of the urethral probe is provided with a side hole (2), and the rear end of the urethral probe (4) is respectively provided with an independent guide wire placing tube and a liquid medicine injection tube (6);
the guide wire imbedding tube is consistent with the axis of the urethral probe (4), and the liquid medicine injection tube (6) is positioned at one side of the guide wire imbedding tube;
still be equipped with expansion sacculus (3) on the front end lateral wall of urethra probe tube (4), expansion sacculus (3) link to each other with the sacculus communicating pipe of locating in the cavity, the rear end of sacculus communicating pipe stretches out outside urethra probe tube (4) to expand and form expansion sacculus pipe (7).
2. The device for dilating and assisting in indwelling urinary catheter according to claim 1, wherein the guide wire insertion tube has an inner wall extending outwardly from one side thereof to form a guide wire support positioning means.
3. The new urethral stricture dilation and urinary catheterisation device as set forth in claim 2, wherein the guide wire support positioning means comprises a support plate, and a guide wire positioning ring (9) provided on the support plate.
4. The new urethral stricture dilation and catheterizing device as set forth in claim 3, wherein the back of the supporting plate is further provided with a finger grip (8).
5. The new urethral stricture dilation and urinary catheterisation aid device as set forth in claim 4, characterized in that the front end of the urethral canal (4) is curved.
6. The new urethral stricture dilation and urinary catheterisation aid device as claimed in claim 5, characterized in that the urethral probe (4) is marked with graduations.
7. The device for urethral stricture dilation and auxiliary indwelling urethral canal as set forth in claim 6, wherein the distance between the starting end of the dilation balloon (3) and the starting end of the front end of the urethral probe (4) is 1-1.5 cm.
8. The device for urethral stricture dilation and auxiliary urinary catheter indwelling according to claim 7, wherein a physiological bend is further provided between the starting end of the dilation balloon (3) and the starting end of the front end of the urethral probe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920135570.XU CN210355644U (en) | 2019-01-26 | 2019-01-26 | Novel urethral stricture expansion and auxiliary indwelling catheter device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920135570.XU CN210355644U (en) | 2019-01-26 | 2019-01-26 | Novel urethral stricture expansion and auxiliary indwelling catheter device |
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| CN210355644U true CN210355644U (en) | 2020-04-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481810A (en) * | 2019-01-26 | 2020-08-04 | 吴志明 | Novel urethral stricture expansion and auxiliary indwelling catheter device |
| CN113117215A (en) * | 2021-04-19 | 2021-07-16 | 海口市人民医院（中南大学湘雅医学院附属海口医院） | Visual urethra expansion and catheterization device |
-
2019
- 2019-01-26 CN CN201920135570.XU patent/CN210355644U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481810A (en) * | 2019-01-26 | 2020-08-04 | 吴志明 | Novel urethral stricture expansion and auxiliary indwelling catheter device |
| CN113117215A (en) * | 2021-04-19 | 2021-07-16 | 海口市人民医院（中南大学湘雅医学院附属海口医院） | Visual urethra expansion and catheterization device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210726 Address after: 526060 room 217, building 1, rose garden, Qiaobei Road, Duanzhou District, Zhaoqing City, Guangdong Province Patentee after: Wu Dingcong Address before: 510060 room 1004, building B, No. 35, Yongfu Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee before: Wu Zhiming |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211104 Address after: 130000 booth 1301-602, No. 7299, Jichang Road, economic and Technological Development Zone, Changchun City, Jilin Province Patentee after: Jilin mudianling Medical Technology Co.,Ltd. Address before: 526060 room 217, building 1, rose garden, Qiaobei Road, Duanzhou District, Zhaoqing City, Guangdong Province Patentee before: Wu Dingcong |