CN103191514B - Positive feedback catheter - Google Patents
Positive feedback catheter Download PDFInfo
- Publication number
- CN103191514B CN103191514B CN201210445423.5A CN201210445423A CN103191514B CN 103191514 B CN103191514 B CN 103191514B CN 201210445423 A CN201210445423 A CN 201210445423A CN 103191514 B CN103191514 B CN 103191514B
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- CN
- China
- Prior art keywords
- urine
- positive feedback
- main body
- urethra
- catheter
- Prior art date
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- 210000002700 urine Anatomy 0.000 claims abstract description 38
- 210000003708 urethra Anatomy 0.000 claims abstract description 22
- 230000036453 micturition reflex Effects 0.000 claims abstract description 9
- 230000002485 urinary effect Effects 0.000 claims description 17
- 230000008676 import Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims 1
- 230000000638 stimulation Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000027939 micturition Effects 0.000 abstract 2
- 210000004877 mucosa Anatomy 0.000 abstract 1
- 210000004400 mucous membrane Anatomy 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 210000000278 spinal cord Anatomy 0.000 description 3
- 206010000234 Abortion spontaneous Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000015994 miscarriage Diseases 0.000 description 2
- 208000000995 spontaneous abortion Diseases 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention provides a positive feedback catheter. At least one flexible area is arranged on the catheter wall of a catheter body positioned in the urethra. As the flexible area can be made of material with good heat-conducting property or is thin-walled, the urine temperature is transferred more quickly to the urethral mucosa in contact with the flexible area during the urination relative to other parts, so that the stimulation to the sensor is increased, the approximately physiological micturition reflex is favorably completed, and a good foundation is created for quick recovery of the urination function after the removal of the catheter.
Description
Technical field
The present invention relates to a kind of positive feedback catheter, belong to medical apparatus and instruments manufacture technology field.
Background technology
Catheter being inserted bladder, to carry out urine drainage be one for the treatment of and nursing means of commonly using the most of clinical medicine, owing to will ensure a unobstructed urine drainage passage at very long pipeline center, tube wall need have certain intensity and corresponding non-deformability, when urinating, urine stream flows out catheter from urine drainage passage, and unlikely pipeline subsides, but lose the physiological function of normal urethral in the process of urinating simultaneously, i.e. positive feedback function, bladder contraction during normal voiding, urine enters urethra, stimulate the sensor of urethra especially on Posterior urethral, the impulsion that penetrates of sensor enters spinal cord, the reflection effect caused strengthens micturition reflex further.This process is constantly carried out repeatedly until urinate complete.When ability of anti-deformation due to urethral catheterization tube wall makes urine drainage, urine cannot produce the sensor of urethra stimulates, and thus cannot set up positive feedback micturition reflex.
Summary of the invention
The object of the present invention is to provide a kind of positive feedback catheter, urethral catheterization person's urine in the process of urine drainage can be made still can to produce urethra to stimulate, thus sets up the micturition reflex of similar normal physiological.
The present invention is achieved in that positive feedback catheter comprises urinary catheter main body (3), in it, hollow is urine drainage lumen (3-1), the urine import (3-2) of urinary catheter main body (3) the inner communicates with urine drainage lumen (3-1), urine drainage lumen (3-1) has a pair outward opening, for 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 flowing through urine drainage lumen (3-1) can make this flexible region (3-9) to drainage lumens (3-1) center position generation deformation, synchronously deformation is there is in the related mucous membrane of urethra (2-2) be in contact with it by the attraction of its gap (2-1) negative pressure, thus sensor on stimulation urethra, afferent impulse enters spinal cord, starts positive feedback micturition reflex.Due to this flexible region (3-9) can select the material of good heat conductivity or itself wall thin, when urinating, urine temperature is delivered to the mucous membrane of urethra (2-2) be in contact with it quickly compared with other parts, thus strengthens stimulation to sensor; When not urinating in addition, flexible region (3-9) outer wall and mucous membrane of urethra (2-2) have adhesion to a certain degree usually; the vacuum suction that when urinating, urine miscarriage is raw causes flexible region (3-9) can be pulled to rapidly the mucous membrane of urethra (2-2) of adhesion to deformation in urinary catheter and produce stimulation to the sensor on it; all contribute to the micturition reflex of approximate physiological, for the fast quick-recovery removing the urinary function after catheter creates good basis.
Accompanying drawing explanation
Fig. 1-4 is structural representation of the present invention
In figure: 1. bladder, 1-1. bladder inner chamber 2. urethra, the gap 3. urinary catheter main body between 2-1. flexible region and mucous membrane of urethra, 3-1. urine drainage lumen, the import of 3-2. urine, 3-3. fixes sacculus, 3-4. fixes sacculus opening, 3-5. balloon inflation channel, 3-6 seal member, 3-7. injecting cavity, 3-8. urine outlet, 3-9. flexible region.
Specific embodiment
Embodiment 1: with reference to accompanying drawing, positive feedback catheter comprises urinary catheter main body (3), in it, hollow is urine drainage lumen (3-1), 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 outward opening, for urine outlet (3-8), the inner outer wall of urinary catheter body is provided with a fixing sacculus (3-3), in sacculus, space is communicated with injecting cavity (3-7) by a sacculus opening (3-4) and coupled balloon inflation channel (3-5), injecting cavity (3-7) outward opening is closed by a packaged unit (3-6), during use, syringe being pierced through packaged unit (3-6), will to fix sacculus (3-3) to refraction chamber (3-7) injecting gas or liquid full.
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 region can select the diaphragms such as silicone rubber, polyethylene, PET to make, and thickness is 0.02-0.8 millimeter.
The urine flowing through urine drainage lumen (3-1) can make this flexible region (3-9) to drainage lumens (3-1) center position generation deformation, synchronously deformation is there is in the related mucous membrane of urethra (2-2) be in contact with it by the attraction of its gap (2-1) negative pressure, thus sensor on stimulation urethra, afferent impulse enters spinal cord, starts positive feedback micturition reflex.Due to this flexible region (3-9) can select the material of good heat conductivity or itself wall thin, flexible region (3-9) can embed or and connect the larger material of the heat transfer coefficients such as foil, when urinating, urine temperature is delivered to the mucous membrane of urethra (2-2) be in contact with it quickly compared with other parts, thus strengthens the stimulation to sensor; When not urinating in addition, flexible region (3-9) outer wall and mucous membrane of urethra (2-2) have adhesion to a certain degree usually; the vacuum suction that when urinating, urine miscarriage is raw causes flexible region (3-9) can be pulled to rapidly the mucous membrane of urethra (2-2) of adhesion to deformation in urinary catheter and produce stimulation to the sensor on it; all contribute to the micturition reflex of approximate physiological, for the fast quick-recovery removing the urinary function after catheter creates good basis.
Claims (4)
1. a 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 import (3-2) of urinary catheter main body (3) the inner is connected with urine drainage lumen (3-1) with the urine outlet (3-8) of external opening, it is characterized in that, the tube wall that urinary catheter main body (3) is positioned at human urethra part is provided with at least one flexible region (3-9), the urine flowing through urine drainage lumen (3-1) can make this flexible region (3-9) to urine drainage lumen (3-1) center position generation deformation, deformation stimulates urethra sensor to start positive feedback micturition reflex.
2. positive feedback catheter according to claim 1, is characterized in that, described flexible region (3-9) average thickness is 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 fixing sacculus (3-3), in sacculus, space is communicated with injecting cavity (3-7) by sacculus opening (3-4) and coupled logical balloon inflation channel (3-5), being closed by a packaged unit (3-6) outward opening of injecting cavity (3-7).
4. positive feedback catheter according to claim 3, is characterized in that, packaged unit (3-6) is for having the parts of self-sealing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210445423.5A CN103191514B (en) | 2012-01-06 | 2012-11-09 | Positive feedback catheter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210002958.5 | 2012-01-06 | ||
| CN201210002958 | 2012-01-06 | ||
| CN201210445423.5A CN103191514B (en) | 2012-01-06 | 2012-11-09 | Positive feedback catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103191514A CN103191514A (en) | 2013-07-10 |
| CN103191514B true CN103191514B (en) | 2015-01-07 |
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 Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220587976 Expired - Lifetime CN202892630U (en) | 2012-01-06 | 2012-11-09 | Positive-feedback catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN202892630U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106725540B (en) * | 2017-02-22 | 2024-01-12 | 西南医科大学附属医院 | Bladder detector and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236422A (en) * | 1991-06-24 | 1993-08-17 | Eplett Jr James D | Antiseptic urinary catheter cuff |
| CN201394276Y (en) * | 2009-02-26 | 2010-02-03 | 黄锦平 | Novel catheter |
| CN101927054A (en) * | 2010-09-14 | 2010-12-29 | 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2008042347A2 (en) * | 2006-10-02 | 2008-04-10 | President And Fellows Of Harvard College | Smart balloon catheter |
| JP2011250903A (en) * | 2010-05-31 | 2011-12-15 | Terumo Corp | Urethral 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
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236422A (en) * | 1991-06-24 | 1993-08-17 | Eplett Jr James D | Antiseptic urinary catheter cuff |
| CN201394276Y (en) * | 2009-02-26 | 2010-02-03 | 黄锦平 | Novel catheter |
| CN101927054A (en) * | 2010-09-14 | 2010-12-29 | 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 |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2003-180821A 2003.07.02 * |
| JP特开2011-250903A 2011.12.15 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202892630U (en) | 2013-04-24 |
| CN103191514A (en) | 2013-07-10 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 102629, Daxing District Zhongguancun science and Technology Park, Daxing pharmaceutical industry base, Tianhe West Road, room 119, room 19, Beijing Applicant after: BEIJING WANSHENG RENHE TECHNOLOGY CO., LTD. Address before: 101113 Beijing Guangyuan Tongzhou District Industrial Development Zone in Tongzhou Street No. 8 Applicant before: Beijing Orient Tide Science and Technology Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: BEIJING ORIENT TIDE SCIENCE AND TECHNOLOGY CO., LTD. TO: BEIJING WANSHENGRENHE TECHNOLOGY CO., LTD. |
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| 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 WANSHENG RENHE 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 WANSHENG RENHE TECHNOLOGY CO., LTD. |