CN103815987B - Electronics artificial anus - Google Patents
Electronics artificial anus Download PDFInfo
- Publication number
- CN103815987B CN103815987B CN201410091913.9A CN201410091913A CN103815987B CN 103815987 B CN103815987 B CN 103815987B CN 201410091913 A CN201410091913 A CN 201410091913A CN 103815987 B CN103815987 B CN 103815987B
- Authority
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- Prior art keywords
- movable sleeve
- fixed cover
- slide opening
- sliding lobe
- intestinal
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- 210000000436 anus Anatomy 0.000 title claims abstract description 28
- 230000000968 intestinal effect Effects 0.000 claims abstract description 36
- 210000003608 fece Anatomy 0.000 claims abstract description 16
- 210000002784 stomach Anatomy 0.000 claims abstract description 6
- 238000007912 intraperitoneal administration Methods 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 12
- 210000003205 muscle Anatomy 0.000 claims description 4
- 210000004303 peritoneum Anatomy 0.000 claims description 4
- 210000001139 rectus abdominis Anatomy 0.000 claims description 4
- 238000007920 subcutaneous administration Methods 0.000 claims description 4
- 230000013872 defecation Effects 0.000 abstract description 20
- 239000007788 liquid Substances 0.000 description 4
- 208000032843 Hemorrhage Diseases 0.000 description 3
- 206010019909 Hernia Diseases 0.000 description 3
- 208000005168 Intussusception Diseases 0.000 description 3
- 206010023804 Large intestine perforation Diseases 0.000 description 3
- 206010040880 Skin irritation Diseases 0.000 description 3
- 206010048038 Wound infection Diseases 0.000 description 3
- 208000003243 intestinal obstruction Diseases 0.000 description 3
- 230000003340 mental effect Effects 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000036556 skin irritation Effects 0.000 description 3
- 231100000475 skin irritation Toxicity 0.000 description 3
- 206010058046 Post procedural complication Diseases 0.000 description 2
- 208000035965 Postoperative Complications Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 206010021925 Inferiority complex Diseases 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000001072 colon Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008717 functional decline Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 210000001599 sigmoid colon Anatomy 0.000 description 1
Landscapes
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The present invention relates to a kind of electronics artificial anus, comprising: fixed cover, its outer surface and skin are fixed, and its external port is parallel with stomach wall, and its inner port is positioned at intraperitoneal, and described fixed cover inside is provided with slide opening; Adapter sleeve, it is for being tightly connected fixed cover and intestinal tube, realizes intestinal and slide opening to be conducted; Be slidably mounted on the movable sleeve in slide opening, movable sleeve drives its relative fixed cover stretch out or retract by the driving device be arranged in fixed cover; Automatic-sealed locking device, it is arranged at the external port place of movable sleeve.When needs defecation, people can find the places such as toilet in time, and when being stretched out by relative for movable sleeve fixed cover afterwards, automatic-sealed locking device is opened, and the feces in intestinal is discharged through movable sleeve.Defecation terminates to be tucked into in fixed cover again by movable sleeve after the head end of movable sleeve is wiped clean by rear toilet paper, and now automatic-sealed locking device is closed.
Description
Technical field
The present invention relates to artificial organ technical field, be specifically related to a kind of artificial anus.
Background technology
In the surgical operation of current Low Rectal, many patients need because knub position is too low to select Miles art formula, namely can not the operation of anus preserving, will implement the permanent abdominal stoma of sigmoid colon, namely " artificial anus " in art.The complication of artificial anus is many, common are: colon necrosis, wound infection, ostomy retraction, ostomy separation, intestinal are deviate from, intussusception, ostomy narrow, intestinal obstruction, pour hernie parastomiale, colonic perforation, excrement caulked, skin irritation, ostomy hemorrhage etc.In addition, because defecation aerofluxus is without anus, and will " artificial anus " on stomach wall, stomach wall needs permanently carry anus bag, need to remove feces, periodic replacement anus bag at any time, cause serious mental maladjustment to patient, patient is reluctant to see people, has inferiority complex, social function declines.All quality of lifes having a strong impact on patient above.
Summary of the invention
The present invention, in order to overcome the deficiency of above technology, provides one and closes at ordinary times, needs the electronics artificial anus that can automatically open during defecation.
The present invention overcomes the technical scheme that its technical problem adopts:
This electronics artificial anus, comprising:
Fixed cover, its outer surface and skin are fixed, and its external port is parallel with stomach wall, and its inner port is positioned at intraperitoneal, and described fixed cover inside is provided with slide opening;
Adapter sleeve, it is for being tightly connected fixed cover and intestinal tube, realizes intestinal and slide opening to be conducted;
Be slidably mounted on the movable sleeve in slide opening, movable sleeve drives its relative fixed cover stretch out or retract by the driving device be arranged in fixed cover;
Automatic-sealed locking device, it is arranged at the external port place of movable sleeve, when the relative fixed cover of movable sleeve stretches out, automatic-sealed locking device is opened, feces in intestinal is discharged through movable sleeve, and when movable sleeve is retracted in fixed cover, automatic-sealed locking device is closed.
Above-mentioned driving device comprises the draw ring being arranged at movable sleeve outer end, and described movable sleeve and slide opening end face are provided with snap close.
In order to realize motorized motions, above-mentioned driving device comprises the battery be arranged in fixed cover, be arranged at the chute of slide opening upper end, to be arranged in fixed cover and the motor be positioned at above chute and the relay being connected to motor, be arranged at the projection of movable sleeve upper end and be arranged at respectively in chute and be positioned at projection two ends for controlling movable sleeve and stretch out and the proximity transducer I of retracted position and proximity transducer II, described projection slides and is arranged in chute, sealing gasket II is provided with between described projection and chute, described projection is provided with tooth bar, the axis of described motor parallels with the axis of movable sleeve, its output shaft is provided with bevel gear I, the rotating shaft of one axis and motor output shaft axis perpendicular is fixed with bevel gear II and spur gear, described bevel gear I is meshed with bevel gear II, described straight-tooth wheel and rack is meshed.
Above-mentioned automatic-sealed locking device is electric control valve.
In order to structure simply uses reliably, above-mentioned automatic-sealed locking device comprises two slots being up and down arranged at movable sleeve outer end respectively, the semicircular sliding lobe I be plugged in upper and lower two slots that slides respectively is individually fixed in the spring on sliding lobe I and sliding lobe II with sliding lobe II and two ends, described sliding lobe I and be respectively arranged with sealing gasket I between sliding lobe II and slot, described two sliding lobes I and sliding lobe II interlaced arrangement, the relative contact of sliding lobe I and sliding lobe II is inlayed respectively and is fixed with rubber blanket I and rubber blanket II, when movable sleeve is positioned at fixed cover inside, sliding lobe I and sliding lobe II are in interlaced occlusion shape, rubber blanket I contacts with rubber blanket II, spring is compressed, described sliding lobe I and sliding lobe II outer end arrange guiding surface I respectively, described slide opening outer end is provided with the guiding surface II matched with guiding surface I.
In order to provide the good compatibility with tissue, above-mentioned fixed cover outer layer covers is fixed with patch I, and described patch I is sewed up fixing with subcutaneous, theca of rectus abdominis muscle and peritoneum respectively mutually.
In order to provide the good compatibility with tissue, above-mentioned adapter sleeve is patch II, and described patch II rear end and intestinal tube intestinal wall are sewed up fixing outward.
In order to prevent intestinal tube and the mutual friction of fixed cover phase, between above-mentioned fixed cover rear end and intestinal tube, be provided with spaced cavities.
In order to realize Remote operation, also comprise the wireless communication module be arranged in fixed cover 1, described wireless communication module is connected to relay.
In order to realize defecation prompting function, be respectively arranged with gas pressure sensor and liquid-pressure pick-up in above-mentioned slide opening, described gas pressure sensor and liquid-pressure pick-up are all connected to wireless communication module.
The invention has the beneficial effects as follows: when needs defecation, people can find the places such as toilet in time, when being stretched out by relative for movable sleeve fixed cover afterwards, automatic-sealed locking device is opened, and the feces in intestinal is discharged through movable sleeve.Defecation terminates to be tucked into in fixed cover again by movable sleeve after the head end of movable sleeve is wiped clean by rear toilet paper, and now automatic-sealed locking device is closed, and the feces in intestinal is blocked and can not flows out again.Therefore the postoperative patient of Miles permanently again need not carry anus bag, so that remove feces, periodic replacement anus bag at any time.Therefore substantially eliminating the mental maladjustment of patient, improve the quality of life of patient.And owing to being external defecation, therefore effectively prevent wound infection, ostomy retraction, ostomy separation, intestinal deviate from, intussusception, ostomy narrow, intestinal obstruction, pour hernie parastomiale, colonic perforation, excrement caulked, skin irritation, the ostomy post-operative complication such as hemorrhage.
Accompanying drawing explanation
Fig. 1 is that master of the present invention looks cross-sectional view;
Fig. 2 is the left TV structure schematic diagram of driving device of the present invention;
Fig. 3 is the left TV structure schematic diagram of sliding lobe of the present invention;
In figure, the 1. sliding lobe I 22. of subcutaneous 6. theca of rectus abdominis muscle 7. peritoneum 8. battery 9. motor 10. relay 11. proximity transducer I 12. patch II 13. spaced cavities 14. intestinal tube 15. wireless communication module 16. gas pressure sensor 17. liquid-pressure pick-up 18. chute 19. projection 20. proximity transducers II 21. of fixed cover 2. movable sleeve 3. slide opening 4. patch I 5. sliding lobe II 23. rubber blanket I 24. rubber blanket II 25. sealing gasket I 26. spring 27. bevel gear I 28. rotating shaft 29. spur gear 30. bevel gear II 31. tooth bar 32. sealing gasket II.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, accompanying drawing 2, the present invention will be further described for accompanying drawing 3.
This electronics artificial anus, comprising: fixed cover 1, and its outer surface and skin are fixed, and its external port is parallel with stomach wall, and its inner port is positioned at intraperitoneal, and fixed cover 1 inside is provided with slide opening 3; Adapter sleeve, it, for fixed cover 1 and intestinal tube 14 being tightly connected, realizes intestinal and slide opening 3 to be conducted; Be slidably mounted on the movable sleeve 2 in slide opening 3, movable sleeve 2 drives its relative fixed cover 1 stretch out or retract by the driving device be arranged in fixed cover 1; Automatic-sealed locking device, it is arranged at the external port place of movable sleeve 2.When needs defecation, people can find the places such as toilet in time, and when by movable sleeve 2, fixed cover 1 stretches out relatively afterwards, automatic-sealed locking device is opened, and the feces in intestinal is discharged through movable sleeve 2.Defecation terminates to be tucked into in fixed cover 1 again by movable sleeve 2 after the head end of movable sleeve 2 is wiped clean by rear toilet paper, and now automatic-sealed locking device is closed, and the feces in intestinal is blocked can not in outflow.Therefore Miles Post operation, patient carry anus bag unlike permanent again, so that remove feces, periodic replacement anus bag at any time.Therefore substantially eliminating the mental maladjustment of patient, improve the quality of life of patient.And owing to being external defecation, therefore effectively prevent wound infection, ostomy retraction, ostomy separation, intestinal deviate from, intussusception, ostomy narrow, intestinal obstruction, pour hernie parastomiale, colonic perforation, excrement caulked, skin irritation, the ostomy post-operative complication such as hemorrhage.
Driving device can comprise the draw ring being arranged at movable sleeve 2 outer end, and movable sleeve 2 and slide opening 3 end face are provided with snap close.By pulling draw ring movable sleeve 2 pulled out from fixed cover 1 or movable sleeve 2 is filled in fixed cover 1, achieve manual operation, because movable sleeve 2 and slide opening 3 end face are provided with snap close, itself and fixed cover 1 can be fixed by snap close after movable sleeve 2 is filled in, prevent movable sleeve 2 freely movable.Driving device also can comprise for motorized drive structure device the battery 8 be arranged in fixed cover 1, be arranged at the chute 18 of slide opening 3 upper end, to be arranged in fixed cover 1 and the motor 9 be positioned at above chute 18 and the relay 10 being connected to motor 9, be arranged at the projection 19 of movable sleeve 2 upper end and be arranged at respectively in chute 18 and be positioned at projection 19 two ends for controlling movable sleeve 2 and stretch out and the proximity transducer I 11 of retracted position and proximity transducer II 20, projection 19 slides and is arranged in chute 18, sealing gasket II 32 is provided with between projection 19 and chute 18, projection 19 is provided with tooth bar 31, the axis of motor 9 parallels with the axis of movable sleeve 2, its output shaft is provided with bevel gear I 27, the rotating shaft 28 of one axis and motor 9 output shaft axis perpendicular is fixed with bevel gear II 30 and spur gear 29, bevel gear I 27 is meshed with bevel gear II 30, spur gear 29 is meshed with tooth bar 31.When needs defecation, electric machine rotation makes bevel gear II 30 rotate by driving bevel gear I 27 to rotate, bevel gear II 30 rotating drive rotating shaft 28 is rotated thus spur gear 29 also realizes rotating, the spur gear 29 rotated is driven through tooth bar 31 and realizes movable sleeve 2 stretching out along fixed cover 1, can only move along a straight line can not to rotate when it stretches out because movable sleeve 2 to be inserted in chute 18 therefore movable sleeve 2 by projection 19.The sealing gasket II 32 arranged between projection 19 and chute 18 can, by isolated with the relay 10 controlling motor 9 start and stop for the motor 9 of liquid dung and top, avoid electric part to burn.With should motor 9 reverse time can drive movable sleeve 2 be retracted in fixed cover 1 realize close.By Electronic control, can be more convenient and smart, improve the comfort level of use.
Automatic-sealed locking device can be electric control valve, and when needing defecation, electric control valve is opened and realized the feces in intestinal tube 14 to discharge, and after defecation terminates, electric control valve is closed.But electric control valve complex structure and cost is higher, therefore automatic-sealed locking device also can for following structure it comprise two slots being up and down arranged at movable sleeve 2 outer end respectively, the semicircular sliding lobe I 21 be plugged in upper and lower two slots that slides respectively is individually fixed in the spring 26 on sliding lobe I 21 and sliding lobe II 22 with sliding lobe II 22 and two ends, slide lobe I 21 and be respectively arranged with sealing gasket I 25 between sliding lobe II 22 and slot, two sliding lobes I 21 and sliding lobe II 22 interlaced arrangement, the relative contact of sliding lobe I 21 and sliding lobe II 22 is inlayed respectively and is fixed with rubber blanket I 23 and rubber blanket II 24, when movable sleeve 2 is positioned at fixed cover 1 inside, sliding lobe I 21 and sliding lobe II 22 are in interlaced occlusion shape, rubber blanket I 23 contacts with rubber blanket II 24, spring 26 is compressed, sliding lobe I 21 and sliding lobe II 22 outer end arrange guiding surface I respectively, slide opening 3 outer end is provided with the guiding surface II matched with guiding surface I.When movable sleeve 2 stretches out, outwards eject along upper and lower two slots with sliding lobe II 22 at the elastic force effect downslide lobe I 21 of spring 26, thus open, feces now in intestinal can flow out through the port of movable sleeve 2, after defecation, movable sleeve 2 is inwardly regained along the slide opening 3 in fixed cover 1, in the process regained, the guiding surface I of sliding lobe I 21 and sliding lobe II 22 outer end is inwardly retracted until insert in movable sleeve 2 completely gradually along the guiding surface II of slide opening 3 outer end, and now spring 26 is compressed.Sliding lobe I 21 and sliding lobe II 22 interlaced arrangement, therefore close latter two rubber blanket I 23 and contact with each other with rubber blanket II 24 and realize sealing, effectively prevent liquid dung from flowing out.And sealing gasket I 25 realizes sealing by rubber blanket I 23 and between rubber blanket II 24 and slot, prevents liquid dung from flowing out from movable sleeve 2 two ends further.
Fixed cover 1 skin can wrap patch I 4, and patch I 4 is sewed up fixing with subcutaneous 5, theca of rectus abdominis muscle 6 and peritoneum 7 phase respectively.Because patch I 4 has quality gently, organize and easily grow into, PHS part Absorbable rod reduces more lasting residue things, and after operation in patients, the feature such as foreign sense and infection geometric ratio complication, therefore improves the reliability after Operation.。
Adapter sleeve can be patch II 12, and patch II 12 rear end and intestinal tube 14 intestinal wall are sewed up fixing outward.By patch II 12, after itself and intestinal wall can be made to sew up, good histocompatibility can be had, not easy infection.Spaced cavities 13 can be provided with between fixed cover 1 rear end and intestinal tube 14.Spaced cavities 13 is as relief area, and the phenomenon can effectively avoiding the CONTACT WITH FRICTION of intestinal wall and fixed cover 1 rear end to cause intestinal wall to damage occurs.
The wireless communication module 15 installed in all right fixed cover 1, wireless communication module 15 is connected to relay 10.Wireless communication module 15 can select bluetooth communication module, 2.4G wireless module, infrared communication module and radio-frequency (RF) receiving and transmission module etc.People can be protruding by remote controller Long-distance Control movable sleeve 2 when needs defecation, and automatic-sealed locking device is opened, and realizes defecation, can be retracted by movable sleeve 2 after defecation terminates by remote control again.Therefore be more convenient for using.Can be respectively arranged with gas pressure sensor 16 and liquid-pressure pick-up 17 in slide opening 3, gas pressure sensor 16 and liquid-pressure pick-up 17 are all connected to wireless communication module 15.When the liquid dung in intestinal tube 14 or gas pressure excessive time, representative now needs to carry out defecation, therefore the gas pressure in gas pressure sensor 16 and liquid-pressure pick-up 17 Real-Time Monitoring intestinal tube 14 and fluid pressure, when gas pressure or fluid pressure too high time, pressure value signal is fed back to wireless communication module 15 by gas pressure sensor 16 and liquid-pressure pick-up 17, wireless communication module 15 sends wireless alarm signal, reminds people to find toilet to carry out defecation as early as possible.
Claims (10)
1. an electronics artificial anus, is characterized in that: comprising:
Fixed cover (1), its outer surface and skin are fixed, and its external port is parallel with stomach wall, and its inner port is positioned at intraperitoneal, and described fixed cover (1) inside is provided with slide opening (3);
Adapter sleeve, it, for fixed cover (1) and intestinal tube (14) being tightly connected, realizes intestinal and slide opening (3) to be conducted;
Be slidably mounted on the movable sleeve (2) in slide opening (3), movable sleeve (2) drives its relative fixed cover (1) stretch out or retract by the driving device be arranged in fixed cover (1);
Automatic-sealed locking device, it is arranged at the external port place of movable sleeve (2), when fixed cover (1) stretches out movable sleeve (2) relatively, automatic-sealed locking device is opened, feces in intestinal is discharged through movable sleeve (2), when movable sleeve (2) is retracted in fixed cover (1), automatic-sealed locking device is closed.
2. electronics artificial anus according to claim 1, is characterized in that: described driving device comprises the draw ring being arranged at movable sleeve (2) outer end, and described movable sleeve (2) and slide opening (3) end face are provided with snap close.
3. electronics artificial anus according to claim 1, it is characterized in that: described driving device comprises the battery (8) be arranged in fixed cover (1), be arranged at the chute (18) of slide opening (3) upper end, to be arranged in fixed cover (1) and to be positioned at the motor (9) of chute (18) top and to be connected to the relay (10) of motor (9), be arranged at the projection (19) of movable sleeve (2) upper end and be arranged at respectively in chute (18) and be positioned at projection (19) two ends for controlling movable sleeve (2) and stretch out and the proximity transducer I (11) of retracted position and proximity transducer II (20), described projection (19) slides and is arranged in chute (18), sealing gasket II (32) is provided with between described projection (19) and chute (18), described projection (19) is provided with tooth bar (31), the axis of described motor (9) parallels with the axis of movable sleeve (2), its output shaft is provided with bevel gear I (27), the rotating shaft (28) of one axis and motor (9) output shaft axis perpendicular is fixed with bevel gear II (30) and spur gear (29), described bevel gear I (27) is meshed with bevel gear II (30), described spur gear (29) is meshed with tooth bar (31).
4. electronics artificial anus according to claim 1, is characterized in that: described automatic-sealed locking device is electric control valve.
5. electronics artificial anus according to claim 1, it is characterized in that: described automatic-sealed locking device comprises two slots being up and down arranged at movable sleeve (2) outer end respectively, slide the respectively semicircular sliding lobe I (21) that is plugged in upper and lower two slots and sliding lobe II (22) and two ends is individually fixed in spring (26) on sliding lobe I (21) and cunning lobe II (22), described sliding lobe I (21) and be respectively arranged with sealing gasket I (25) between sliding lobe II (22) and slot, described sliding lobe I (21) and sliding lobe II (22) interlaced arrangement, the relative contact of sliding lobe I (21) and sliding lobe II (22) is inlayed respectively and is fixed with rubber blanket I (23) and rubber blanket II (24), when movable sleeve (2) is positioned at fixed cover (1) inside, sliding lobe I (21) and sliding lobe II (22) are in interlaced occlusion shape, rubber blanket I (23) contacts with rubber blanket II (24), spring (26) is compressed, described sliding lobe I (21) and sliding lobe II (22) outer end arrange guiding surface I respectively, described slide opening (3) outer end is provided with the guiding surface II matched with guiding surface I.
6. electronics artificial anus as claimed in any of claims 1 to 5, it is characterized in that: described fixed cover (1) outer layer covers is fixed with patch I (4), described patch I (4) is sewed up fixing respectively mutually with subcutaneous (5), theca of rectus abdominis muscle (6) and peritoneum (7).
7. electronics artificial anus as claimed in any of claims 1 to 5, is characterized in that: described adapter sleeve is patch II (12), and described patch II (12) rear end and intestinal tube (14) intestinal wall are sewed up fixing outward.
8. electronics artificial anus according to claim 7, is characterized in that: be provided with spaced cavities (13) between described fixed cover (1) rear end and intestinal tube (14).
9. electronics artificial anus according to claim 3, is characterized in that: also comprise the wireless communication module (15) be arranged in fixed cover (1), described wireless communication module (15) is connected to relay (10).
10. electronics artificial anus according to claim 9, it is characterized in that: be respectively arranged with gas pressure sensor (16) and liquid-pressure pick-up (17) in described slide opening (3), described gas pressure sensor (16) and liquid-pressure pick-up (17) are all connected to wireless communication module (15).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410091913.9A CN103815987B (en) | 2014-03-13 | 2014-03-13 | Electronics artificial anus |
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|---|---|---|---|
| CN201410091913.9A CN103815987B (en) | 2014-03-13 | 2014-03-13 | Electronics artificial anus |
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| CN103815987A CN103815987A (en) | 2014-05-28 |
| CN103815987B true CN103815987B (en) | 2015-08-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030194B (en) * | 2015-04-22 | 2018-01-02 | 上海交通大学 | Intestinal contents detecting system and method based on pliable pressure sensor and infrared acquisition |
| CN110786982A (en) * | 2018-07-16 | 2020-02-14 | 猎源（上海）生物医药科技有限公司 | Intelligent artificial anus |
| CN112869911B (en) * | 2020-12-18 | 2023-07-21 | 中山大学附属第六医院 | Implanted artificial anus |
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| CN103815987A (en) | 2014-05-28 |
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