CN112957595B - Catheter capable of preventing urine leakage - Google Patents
Catheter capable of preventing urine leakage Download PDFInfo
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- CN112957595B CN112957595B CN202110190773.0A CN202110190773A CN112957595B CN 112957595 B CN112957595 B CN 112957595B CN 202110190773 A CN202110190773 A CN 202110190773A CN 112957595 B CN112957595 B CN 112957595B
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- urine
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- catheter
- urinary catheter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/20—Measuring for diagnostic purposes; Identification of persons for measuring urological functions restricted to the evaluation of the urinary system
- A61B5/202—Assessing bladder functions, e.g. incontinence assessment
- A61B5/204—Determining bladder volume
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/20—Measuring for diagnostic purposes; Identification of persons for measuring urological functions restricted to the evaluation of the urinary system
- A61B5/202—Assessing bladder functions, e.g. incontinence assessment
- A61B5/205—Determining bladder or urethral pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1018—Balloon inflating or inflation-control devices
- A61M25/10181—Means for forcing inflation fluid into the balloon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M2025/0001—Catheters; Hollow probes for pressure measurement
- A61M2025/0003—Catheters; Hollow probes for pressure measurement having an additional lumen transmitting fluid pressure to the outside for measurement
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
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- Biophysics (AREA)
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- Hematology (AREA)
- Anesthesiology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Urology & Nephrology (AREA)
- Physiology (AREA)
- Child & Adolescent Psychology (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- External Artificial Organs (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention provides a urine leakage prevention catheter, and relates to the field of catheters. The urine leakage prevention catheter comprises a urine pipeline, an inflation pipeline and a flushing pipeline, wherein a first urine inlet is formed in one end of the urine pipeline, and a urine receiving port is formed in the other end of the urine pipeline; an air bag is arranged outside the urine pipeline and close to the urine inlet, and the air bag is communicated with the inflation pipeline; the urine pipeline is also provided with a second urine inlet at the rear part of the air bag, and a one-way valve is arranged in the urine pipeline; the catheter also comprises a catheter sleeve sleeved outside the urine pipeline, the front end of the catheter sleeve is provided with a pasting part used for being in sealed adhesion with the penis or vulva of a patient, the rear end of the catheter sleeve is connected to the rear part of the second urine inlet in a sealing mode, and a urine leakage and collection space is formed between the catheter sleeve and the urine pipeline. The second advances the urine mouth as supplementary opening, can supply the urine of seepage in the catheterization cover to return into the urine pipeline again, solves the problem that arouses the urine seepage because of urine pipeline and urethral orifice contact are not good, has reached the purpose of effective water conservancy diversion urine.
Description
Technical Field
The invention relates to the technical field of catheters, in particular to a catheter capable of preventing urine leakage.
Background
For prostate and bladder disease patients, during postoperative indwelling catheterisation, a urinary catheter is inserted into the patient's urethral orifice to drain the intravesical urine flow into the urine reservoir. However, because the urethral orifice of the patient is loose, the size of the catheter is not matched, and the like, the catheter and the urethral orifice are not firmly bonded, so that the problem of urine leakage occurs, and particularly for the patient needing bladder irrigation, the urine leakage condition is more serious.
The urinary bladder irrigation catheter comprises a catheter body with a urinary channel inside, wherein the catheter body is provided with a plurality of urinary holes communicated with the urinary channel, the lower side wall of one section of the catheter body in contact with the urinary channel is connected with a balloon, a ventilation channel is further arranged in the catheter body and communicated with the balloon, the other end of the ventilation channel is connected with a ventilation pipe penetrating out of the side wall of the catheter body, a cleaning channel is further arranged in the catheter body, a lantern ring in sliding connection with the catheter body is sleeved on the outer wall of the catheter body, the lantern ring is connected with a fixing piece for fixing with the abdominal skin of a patient, and one end, extending into the urinary channel, of the catheter body is provided with a pressure sensor for detecting the pressure in the urinary bladder.
The urinary bladder irrigation catheter in the prior art realizes the effects of urination, bladder irrigation and balloon fixation by arranging a cleaning channel, a urination channel and a ventilation channel. However, for a patient with a loose urethral orifice, the catheter may not be completely sealed in the urethral orifice by using the balloon, which is easy to leak urine, and cannot achieve the purpose of effectively guiding urine.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a urine leakage prevention urinary catheter, so as to solve the problem that for a patient with a loose urethral opening, the urinary catheter may not be completely sealed in the urethral opening only by using a balloon, so that urine leakage is likely to occur, and the purpose of effectively guiding urine cannot be achieved.
The technical scheme of the urine leakage prevention catheter comprises the following steps:
the urine leakage prevention catheter comprises a urine pipeline, an inflation pipeline and a flushing pipeline, wherein the inflation pipeline and the flushing pipeline are arranged in parallel with the urine pipeline;
an air bag is arranged outside the urine pipeline and close to the first urine inlet, and the air bag is communicated with the inflation pipeline; a second urine inlet is further formed in the urine pipeline and positioned at the rear part of the air bag, and a one-way valve is arranged in the urine pipeline between the first urine inlet and the second urine inlet;
the catheter is characterized by further comprising a catheter sleeve arranged outside the urine pipeline in a sleeved mode, wherein a pasting part used for being adhered to the penis or the vulva of a patient in a sealing mode is arranged at the front end of the catheter sleeve, the rear end of the catheter sleeve is connected to the rear portion of the second urine inlet in a sealing mode, and a urine leakage and collection space is formed between the catheter sleeve and the urine pipeline.
Furthermore, the urethral catheterization sleeve is a conical urethral catheterization sleeve with the front end opening facing the first urethral orifice, and the pasting part is an annular adhesive tape arranged at the edge of the conical urethral catheterization sleeve.
Furthermore, a tail adhesive tape is also arranged at the rear end closing-up of the conical urethral catheterization sleeve, and the tail adhesive tape is detachably, hermetically and adhesively connected with the urine pipeline.
Furthermore, a blocking structure can be detachably connected to the urine pipeline, and the blocking structure is provided with a blocking part which is used for being in sealing fit with the second urine inlet.
Furthermore, the plugging structure is a plugging adhesive tape, a convex block is arranged on the inner side of the plugging adhesive tape, and the convex block forms the plugging part which is used for being in sealing fit with the second urine inlet.
Furthermore, the pipe diameter of the urine pipeline is larger than the pipe diameter of the inflation pipeline and the pipe diameter of the flushing pipeline.
Furthermore, the inflation pipeline and the flushing pipeline are symmetrically arranged on the outer side of the urine pipeline respectively, and one end of the flushing pipeline is a water outlet extending to a position between the first urine inlet and the air bag.
Furthermore, the other end of the flushing pipeline is a water inlet, and a flow stopping structure is further arranged at the position, close to the water inlet, of the flushing pipeline.
Furthermore, the flow stopping structure is a sealing plug which is detachably and hermetically connected with the water inlet, and a pressure sensing element is further arranged on the sealing plug and used for detecting the pressure of the bladder.
Has the advantages that: the urine leakage prevention catheter adopts the structural design of a urine pipeline, an inflation pipeline, a flushing pipeline and a urine guide sleeve, one end of the urine pipeline is inserted into the urethral orifice of a patient, the inflation pipeline is used for inflating the air bag, the whole catheter is fixed in the urethra of the patient after the air bag is expanded, the urine in the bladder flows into the urine pipeline through the first urine inlet, and is discharged and collected in the urine receiving bag through the urine receiving port of the urine pipeline; on the basis of original catheter structure, the rear portion that the urine pipeline is located the gasbag is equipped with the second and advances the urine mouth, urine pipeline outside still overlaps and is equipped with the catheterization cover, the sealed bonding of the portion of pasting that will guide the urine cover front end is in patient's penis or vulva department during the use, the rear end sealing connection of catheterization cover advances the rear portion of urine mouth at the second, thereby form urine leakage collection liquid space between catheterization cover and urine pipeline, the second advances the urine mouth as supplementary opening, can supply the urine of seepage in the catheterization cover to return again into the urine pipeline, can solve because of the urine pipeline contacts the problem that arouses the urine seepage well with the urethral orifice, the mesh of effective water conservancy diversion urine has been reached. The one-way valve arranged between the first urine inlet and the second urine inlet can only discharge urine in the urine pipeline out of the bladder, so that the urine is effectively prevented from flowing back to the bladder, and the risk of infection of a patient is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a urine leakage prevention urinary catheter in an embodiment 1 of the urine leakage prevention urinary catheter of the present invention;
FIG. 2 is a perspective view of a tapered urisheath in embodiment 1 of the urine leak prevention catheter of the present invention;
fig. 3 is a schematic top view of the blocking tape of embodiment 1 of the urine leakage prevention urinary catheter of the present invention.
In the figure: 1-urine pipeline, 10-one-way valve, 11-first urine inlet, 12-second urine inlet, 13-urine receiving port, 2-inflation pipeline, 3-flushing pipeline, 30-water outlet, 31-water inlet, 32-sealing plug, 4-air bag, 5-urethral catheterization sleeve, 50-annular adhesive tape, 51-tail adhesive tape, 6-plugging adhesive tape and 60-bulge block.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the embodiment 1 of the urine leakage prevention urinary catheter of the present invention, as shown in fig. 1 to 3, the urine leakage prevention urinary catheter includes a urine pipeline 1, an inflation pipeline 2 and a flushing pipeline 3 which are arranged in parallel with the urine pipeline 1, one end of the urine pipeline 1 is provided with a first urine inlet 11, and the other end of the urine pipeline 1 is provided with a urine receiving port 13; an air bag 4 is arranged outside the urine pipeline 1 and close to the first urine inlet 11, and the air bag 4 is communicated with the inflation pipeline 2; a second urine inlet 12 is further arranged at the rear part of the air bag 4 of the urine pipeline 1, and a one-way valve 10 is arranged between the first urine inlet 11 and the second urine inlet 12 in the urine pipeline 1; the catheter also comprises a urethral catheterization sleeve 5 which is sleeved outside the urine pipeline 1, the front end of the urethral catheterization sleeve 5 is provided with a pasting part which is used for being hermetically bonded with the penis or vulva of a patient, the rear end of the urethral catheterization sleeve 5 is hermetically connected with the rear part of the second urine inlet 12, and a urine leakage and collection space is formed between the urethral catheterization sleeve 5 and the urine pipeline 1.
The urine leakage prevention catheter adopts the structural design of a urine pipeline 1, an inflation pipeline 2, a flushing pipeline 3 and a urine guide sleeve 5, one end of the urine pipeline 1 is inserted into the urethral orifice of a patient, the inflation pipeline 2 is used for inflating an air bag 4, the air bag 4 is expanded to fix the whole catheter in the urethra of the patient, a first urine inlet 11 is used for urine in the bladder to flow into the urine pipeline 1, and the urine is discharged and collected in a urine receiving bag through a urine receiving port 13 of the urine pipeline 1; on the basis of original catheter structure, urine pipeline 1 is located the rear portion of gasbag 5 and is equipped with second and advances urine mouth 12, urine pipeline 1 outside still overlaps and is equipped with catheterization cover 5, will during the use seal bonding of the portion of pasting of catheterization cover 5 front end at patient's penis or vulva department, the rear end sealing connection of catheterization cover 5 advances the rear portion of urine mouth 12 at the second, thereby form urine leakage collection liquid space between catheterization cover 5 and urine pipeline 1, second advances urine mouth 12 as supplementary opening, can supply the urine of seepage in catheterization cover 5 to return into urine pipeline 1 again, can solve because of urine pipeline 1 and the not good problem that arouses the urine seepage of urethral orifice contact, the purpose of effective water conservancy diversion urine has been reached. The one-way valve 10 arranged between the first urine inlet 11 and the second urine inlet 12 can only discharge urine in the urine pipeline 1 out of the bladder, effectively prevent the urine from flowing back into the bladder and reduce the risk of infection of a patient.
In this embodiment, the one-way valve 10 is arranged at a position between the air bag 4 and the second urine inlet 12, the one-way valve 10 being designed to have a striking red appearance. When the urine collecting device is used, the urine pipeline 1 is inserted into the bladder, and the one-way valve 10 is exposed outside the body of a patient, so that medical personnel can observe whether the one-way valve 10 is in an open or closed state, and the urination condition of the patient can be known in real time. The urethral catheterization sleeve 5 is a conical urethral catheterization sleeve with the front end opening facing the first urine inlet 11, the pasting part is an annular adhesive tape 50 arranged at the opening edge of the conical urethral catheterization sleeve, the pasting surface of the annular adhesive tape 50 is positioned on the outer side, the urethral catheterization sleeve 5 can be sufficiently and hermetically bonded with the penis or vulva of a patient, and therefore leaked urine can be reliably collected in the urine leakage and collection space in the urethral catheterization sleeve 5. And, a tail adhesive tape 51 is also arranged at the rear end closing up of the conical urethral catheterization sleeve, and the tail adhesive tape 51 is detachably sealed and bonded with the urinary catheter 1.
In addition, a blocking structure can be detachably connected to the urine pipeline 1, and the blocking structure is provided with a blocking part which is used for being matched with the second urine inlet 12 in a sealing mode. Specifically, the blocking structure is a blocking tape 6, a convex block 60 is arranged on the inner side of the blocking tape 6, and the convex block 60 forms a blocking part which is used for being matched with the second urine inlet 12 in a sealing manner. Along with the obvious improvement of the urine leakage condition of a patient, the urethral catheterization sleeve 5 can be detached and replaced by the tail plugging adhesive tape 6, the plugging adhesive tape 6 is bound and adhered to the urine pipeline 1, the second urine inlet 12 is plugged by the convex block 60 on the inner side of the plugging adhesive tape 6, and the first urine inlet 11 is used as a unique urine inlet, so that the use requirement of the patient when the urine leakage does not occur is better met.
Wherein, the pipe diameters of the urine pipeline 1 are larger than the pipe diameters of the inflation pipeline 2 and the flushing pipeline 3. Moreover, the inflation pipeline 2 and the flushing pipeline 3 are respectively and symmetrically arranged at the outer side of the urine pipeline 1, the inflation pipeline 2, the flushing pipeline 3 and the urine pipeline 1 are designed into a whole, the whole outline is cylindrical, and one end of the flushing pipeline 3 is a water outlet 30 extending between the first urine inlet 11 and the air bag 4. The other end of the flushing pipeline 3 is a water inlet 31, and a flow stopping structure is further arranged at the position, close to the water inlet 31, of the flushing pipeline 3. Specifically, the flow stopping structure is a sealing plug 32 detachably and hermetically connected to the water inlet 31, a pressure sensing element is further arranged on the sealing plug 32, the pressure sensing element is used for detecting the pressure of the bladder, and the pressure sensing element is a miniature pressure sensor. When the bladder of a patient needs to be flushed, flushing water is introduced into the bladder by the flushing pipeline 3, the flushed water is discharged through the urine pipeline 1, the sealing plug 32 is plugged into the water inlet 31 after flushing is completed, the bladder pressure is detected by the pressure sensing element on the sealing plug 32, and then the urine volume and the bladder pressure condition in the bladder of the patient are mastered.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (7)
1. A urine leakage prevention catheter is characterized by comprising a urine pipeline, an inflation pipeline and a flushing pipeline, wherein the inflation pipeline and the flushing pipeline are arranged in parallel with the urine pipeline;
an air bag is arranged outside the urine pipeline and close to the first urine inlet, and the air bag is communicated with the inflation pipeline; a second urine inlet is further formed in the urine pipeline and positioned at the rear part of the air bag, and a one-way valve is arranged in the urine pipeline between the first urine inlet and the second urine inlet;
the urinary catheter also comprises a urinary catheter sleeve sleeved outside the urinary pipeline, the front end of the urinary catheter sleeve is provided with a pasting part used for being hermetically bonded with the penis or vulva of a patient, the rear end of the urinary catheter sleeve is hermetically connected with the rear part of the second urine inlet, the front end of the urinary catheter sleeve protrudes out of the front part of the air bag, so that the second urine inlet is sealed inside the urinary catheter sleeve, and a urine leakage and collection space is formed between the urinary catheter sleeve and the urinary pipeline;
the urethral catheterization sleeve is a conical urethral catheterization sleeve with the front end opening facing the first urine inlet, and the pasting part is an annular adhesive tape arranged at the edge of the conical urethral catheterization sleeve;
the rear end closing in of the conical urethral catheterization sleeve is also provided with a tail adhesive tape, and the tail adhesive tape is detachably, hermetically and adhesively bonded with the urine pipeline.
2. A urine leakage prevention urinary catheter according to claim 1, wherein a blocking structure is also detachably connected to the urinary catheter, said blocking structure having a blocking portion for sealing engagement with said second urine inlet.
3. The urinary catheter for preventing urinary leakage according to claim 2, wherein said blocking structure is a blocking tape, and wherein said blocking tape is provided with a protruding block at an inner side thereof, said protruding block constituting said blocking portion for sealing engagement with said second urinary inlet.
4. The urine leak-proof urinary catheter as claimed in claim 1, wherein the diameter of each of said urine line is larger than the diameter of said inflation line and the diameter of said irrigation line.
5. The urine leakage prevention urinary catheter according to claim 1, wherein said inflation line and said irrigation line are symmetrically disposed outside said urine line, respectively, and one end of said irrigation line is a water outlet extending between said first urine inlet and said air bag.
6. The urine leak prevention urinary catheter as claimed in claim 5, wherein the other end of the flushing line is a water inlet, and a flow stopping structure is further provided on the flushing line near the water inlet.
7. The urinary catheter for preventing urinary leakage according to claim 6, wherein the flow stopping structure is a sealing plug detachably and hermetically connected to the water inlet, and a pressure sensing element is further arranged on the sealing plug and used for detecting the pressure of the bladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110190773.0A CN112957595B (en) | 2021-02-19 | 2021-02-19 | Catheter capable of preventing urine leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110190773.0A CN112957595B (en) | 2021-02-19 | 2021-02-19 | Catheter capable of preventing urine leakage |
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| Publication Number | Publication Date |
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| CN112957595A CN112957595A (en) | 2021-06-15 |
| CN112957595B true CN112957595B (en) | 2023-01-10 |
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| CN202110190773.0A Active CN112957595B (en) | 2021-02-19 | 2021-02-19 | Catheter capable of preventing urine leakage |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050124978A1 (en) * | 2002-02-21 | 2005-06-09 | Chul-Jun Kim | Indwelling urinary catheter |
| CN201260724Y (en) * | 2008-10-15 | 2009-06-24 | 李叶红 | Portable urine-guiding and storing device for male |
| US20200375787A1 (en) * | 2019-05-29 | 2020-12-03 | Wen-Hua Wang | Urethral catheterization structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203154558U (en) * | 2013-04-15 | 2013-08-28 | 南京大学医学院附属鼓楼医院 | Urine-leakage-proof catheter for males |
| CN206910586U (en) * | 2017-01-20 | 2018-01-23 | 文舒 | A kind of novel male catheter |
| CN107224657A (en) * | 2017-06-21 | 2017-10-03 | 孙永花 | The catheter being fixed easily |
| CN109498963A (en) * | 2018-12-24 | 2019-03-22 | 南通市第二人民医院 | A kind of bladder irrigation catheter |
| CN211068666U (en) * | 2019-07-16 | 2020-07-24 | 河北医科大学第三医院 | Catheter |
| CN110743048A (en) * | 2019-11-21 | 2020-02-04 | 杭州宸武科技有限公司 | Urethral catheterization device for patients |
| CN211834950U (en) * | 2020-01-08 | 2020-11-03 | 新疆医科大学第一附属医院 | A catheterization device for uropoiesis surgery |
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2021
- 2021-02-19 CN CN202110190773.0A patent/CN112957595B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050124978A1 (en) * | 2002-02-21 | 2005-06-09 | Chul-Jun Kim | Indwelling urinary catheter |
| CN201260724Y (en) * | 2008-10-15 | 2009-06-24 | 李叶红 | Portable urine-guiding and storing device for male |
| US20200375787A1 (en) * | 2019-05-29 | 2020-12-03 | Wen-Hua Wang | Urethral catheterization structure |
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| CN112957595A (en) | 2021-06-15 |
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