CN202892630U - Positive-feedback catheter - Google Patents
Positive-feedback catheter Download PDFInfo
- Publication number
- CN202892630U CN202892630U CN 201220587976 CN201220587976U CN202892630U CN 202892630 U CN202892630 U CN 202892630U CN 201220587976 CN201220587976 CN 201220587976 CN 201220587976 U CN201220587976 U CN 201220587976U CN 202892630 U CN202892630 U CN 202892630U
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- urine
- catheter
- main body
- urethra
- positive feedback
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Abstract
The utility model provides a positive-feedback catheter. The wall of a section of a catheter body in the urethra comprises at least one flexible area, and the flexible areas can be made of materials good in heat conduction performance or are intrinsically thin in wall. During urination, urine temperature can be faster transmitted to urethra mucosa contacting with the catheter than other portions, and accordingly, stimulation to a sensor is enhanced, similar physiological urination reflection can be completed beneficially, and a good basis is created for quick restoration of urination function after the catheter is removed.
Description
Technical field
This utility model relates to a kind of positive feedback catheter, belongs to the medical apparatus and instruments manufacture technology field.
Background technology
Catheter is inserted bladder, and to carry out urine drainage be one of clinical medicine treatment nursing means the most commonly used, owing to will guarantee a unobstructed urine drainage passage at very long pipeline center, tube wall need have certain intensity and corresponding non-deformability, urine stream flows out catheter from the urine drainage passage when urinating, and unlikely pipeline subsides, but lost simultaneously the physiological function of normal urethra in the process of urinating, it is the positive feedback function, bladder contraction during normal voiding, urine enters urethra, sensor after stimulating urethra especially on the urethra, the impulsion that penetrates of sensor enters spinal cord, and the reflection effect that causes is further to strengthen micturition reflex.This process is constantly carried out repeatedly until urinate complete.Because the ability of anti-deformation of urethral catheterization tube wall so that during urine drainage urine can't produce the sensor of urethra and stimulate, thereby can't set up the positive feedback micturition reflex.
Summary of the invention
The purpose of this utility model is to provide a kind of positive feedback catheter, and urethral catheterization person's urine in the process of urine drainage still can be produced urethra to stimulate, thereby sets up the micturition reflex of similar normal physiological.
This utility model is achieved in that the positive feedback catheter comprises urinary catheter main body (3), hollow is urine drainage lumen (3-1) in it, the inner urine import (3-2) of urinary catheter main body (3) communicates with urine drainage lumen (3-1), urine drainage lumen (3-1) has a pair of outward opening, be urine outlet (3-8), it is characterized in that, its tube wall of stage that urinary catheter main body (3) is positioned at urethra comprises at least one flexible region (3-9).
The urine of urine drainage lumen (3-1) of flowing through can make this flexible region (3-9) to drainage lumens (3-1) center position generation deformation, the related mucous membrane of urethra that is in contact with it (2-2) is subjected to the attraction of its gap (2-1) negative pressure that deformation occurs synchronously, thereby sensor on the stimulation urethra, afferent impulse enters spinal cord, starts the positive feedback micturition reflex.Because this flexible region (3-9) can select the material of good heat conductivity or itself wall thin, the urine temperature is delivered to the mucous membrane of urethra (2-2) that is in contact with it quickly when urinating than other parts, thereby strengthens the stimulation to sensor; (3-9) outer wall of flexible region when not urinating in addition and mucous membrane of urethra (2-2) have adhesion to a certain degree usually; the vacuum suction that urine miscarriage is given birth to when urinating causes flexible region (3-9) deformation in the urinary catheter can be pulled to rapidly the mucous membrane of urethra (2-2) of adhesion and the sensor on it is produced stimulating; all help to finish approximate physiological micturition reflex, for the fast quick-recovery that removes the urinary function behind the catheter is created good basis.
Description of drawings
Fig. 1-4 is structural representation of the present utility model
Among the figure: 1. fixing fixedly sacculus opening, 3-5. sacculus passage, 3-6 seal member, 3-7. injecting cavity, the outlet of 3-8. urine, the 3-9. flexible region of sacculus, 3-4. of the gap 3. urinary catheter main bodys between bladder, 1-1. bladder inner chamber 2. urethras, 2-1. flexible region and the mucous membrane of urethra, 3-1. urine drainage lumen, the import of 3-2. urine, 3-3..
Specific embodiment
Embodiment 1: with reference to accompanying drawing, the positive feedback catheter comprises urinary catheter main body (3), hollow is urine drainage lumen (3-1) in it, the urine import (3-2) of urinary catheter main body (3) body the inner communicates with urine drainage lumen (3-1), urine drainage lumen (3-1) has a pair of outward opening, be urine outlet (3-8), the inner outer wall of urinary catheter body is provided with a fixedly sacculus (3-3), the space communicates with injecting cavity (3-7) by a sacculus opening (3-4) and coupled sacculus passage (3-5) in the sacculus, injecting cavity (3-7) outward opening is sealed by a packaged unit (3-6), fixedly sacculus (3-3) is full to reflecting chamber (3-7) injecting gas or liquid during use syringe to be pierced through packaged unit (3-6).
Its tube wall of stage that urinary catheter main body (3) is positioned at urethra comprises at least one flexible region (3-9), and this zone can select the diaphragms such as silicone rubber, polyethylene, PET to make, and thickness is the 0.02-0.8 millimeter.
The urine of urine drainage lumen (3-1) of flowing through can make this flexible region (3-9) to drainage lumens (3-1) center position generation deformation, the related mucous membrane of urethra that is in contact with it (2-2) is subjected to the attraction of its gap (2-1) negative pressure that deformation occurs synchronously, thereby sensor on the stimulation urethra, afferent impulse enters spinal cord, starts the positive feedback micturition reflex.Because this flexible region (3-9) can select the material of good heat conductivity or itself wall thin, can embed on the flexible region (3-9) or and connect the larger materials of heat transfer coefficient such as foil, the urine temperature is delivered to the mucous membrane of urethra (2-2) that is in contact with it quickly when urinating than other parts, thereby strengthens the stimulation to sensor; (3-9) outer wall of flexible region when not urinating in addition and mucous membrane of urethra (2-2) have adhesion to a certain degree usually; the vacuum suction that urine miscarriage is given birth to when urinating causes flexible region (3-9) deformation in the urinary catheter can be pulled to rapidly the mucous membrane of urethra (2-2) of adhesion and the sensor on it is produced stimulating; all help to finish approximate physiological micturition reflex, for the fast quick-recovery that removes the urinary function behind the catheter is created good basis.
Claims (4)
1. positive feedback catheter, comprise urinary catheter main body (3), the inner hollow of described urinary catheter main body (3) is urine drainage lumen (3-1), the urine outlet (3-8) of the urine import (3-2) that urinary catheter main body (3) is inner and external opening is connected with urine drainage lumen (3-1), it is characterized in that, the tube wall that urinary catheter main body (3) is positioned at the human urethra part is provided with at least one flexible region (3-9).
2. positive feedback catheter according to claim 1 is characterized in that, described flexible region (3-9) average thickness is the 0.02-0.8 millimeter.
3. positive feedback catheter according to claim 1, it is characterized in that, the part that urinary catheter main body (3) is positioned at human urethra is provided with a fixedly sacculus (3-3), the space communicates with injecting cavity (3-7) by sacculus opening (3-4) and coupled logical sacculus passage (3-5) in the sacculus, injecting cavity (3-7) outward opening is sealed by a packaged unit (3-6).
4. positive feedback catheter according to claim 3 is characterized in that, the parts of packaged unit (3-6) for having self-sealing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587976 CN202892630U (en) | 2012-01-06 | 2012-11-09 | Positive-feedback catheter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210002958 | 2012-01-06 | ||
| CN201210002958.5 | 2012-01-06 | ||
| CN 201220587976 CN202892630U (en) | 2012-01-06 | 2012-11-09 | Positive-feedback catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202892630U true CN202892630U (en) | 2013-04-24 |
Family
ID=48113353
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220587976 Expired - Lifetime CN202892630U (en) | 2012-01-06 | 2012-11-09 | Positive-feedback catheter |
| CN201210445423.5A Active CN103191514B (en) | 2012-01-06 | 2012-11-09 | Positive feedback catheter |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210445423.5A Active CN103191514B (en) | 2012-01-06 | 2012-11-09 | Positive feedback catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN202892630U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191514A (en) * | 2012-01-06 | 2013-07-10 | 北京东方潮汐科技发展有限公司 | Positive feedback catheter |
| CN106725540A (en) * | 2017-02-22 | 2017-05-31 | 西南医科大学附属医院 | A kind of application method of bladder detector and bladder detector |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236422A (en) * | 1991-06-24 | 1993-08-17 | Eplett Jr James D | Antiseptic urinary catheter cuff |
| JP2003180821A (en) * | 2001-12-13 | 2003-07-02 | Sumitomo Bakelite Co Ltd | Urethral catheter |
| GB0321120D0 (en) * | 2003-09-10 | 2003-10-08 | Wang Dajue | Catheters |
| US7662145B2 (en) * | 2003-09-17 | 2010-02-16 | Prostalund Operations Ab | Partial-length indwelling urinary catheter and method permitting selective urine discharge |
| US20100113939A1 (en) * | 2006-10-02 | 2010-05-06 | Hiroshi Mashimo | Smart balloon catheter |
| CN201394276Y (en) * | 2009-02-26 | 2010-02-03 | 黄锦平 | Novel urethral catheter |
| JP2011250903A (en) * | 2010-05-31 | 2011-12-15 | Terumo Corp | Urethral catheter |
| CN101927054B (en) * | 2010-09-14 | 2012-11-21 | 四川大学华西第二医院 | Bionic urethral catheterization device |
| CN202892630U (en) * | 2012-01-06 | 2013-04-24 | 北京东方潮汐科技发展有限公司 | Positive-feedback catheter |
-
2012
- 2012-11-09 CN CN 201220587976 patent/CN202892630U/en not_active Expired - Lifetime
- 2012-11-09 CN CN201210445423.5A patent/CN103191514B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191514A (en) * | 2012-01-06 | 2013-07-10 | 北京东方潮汐科技发展有限公司 | Positive feedback catheter |
| CN103191514B (en) * | 2012-01-06 | 2015-01-07 | 北京万生人和科技有限公司 | Positive feedback catheter |
| CN106725540A (en) * | 2017-02-22 | 2017-05-31 | 西南医科大学附属医院 | A kind of application method of bladder detector and bladder detector |
| CN106725540B (en) * | 2017-02-22 | 2024-01-12 | 西南医科大学附属医院 | Bladder detector and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103191514A (en) | 2013-07-10 |
| CN103191514B (en) | 2015-01-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING WANSHENG RENHE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: BEIJING ORIENT TIDE SCIENCE AND TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 102629, Daxing District Zhongguancun science and Technology Park, Daxing pharmaceutical industry base, Tianhe West Road, room 119, room 19, Beijing Patentee after: BEIJING WINSUNNY HARMONY SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 101113 Beijing Guangyuan Tongzhou District Industrial Development Zone in Tongzhou Street No. 8 Patentee before: BEIJING ORIENT TIDE SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 101113 Beijing city Tongzhou District Guangyuan Street No. 8 Building 4 Patentee after: BEIJING WINSUNNY HARMONY SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 102629, Daxing District Zhongguancun science and Technology Park, Daxing pharmaceutical industry base, Tianhe West Road, room 119, room 19, Beijing Patentee before: BEIJING WINSUNNY HARMONY SCIENCE AND TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |