CN108969815B - Anal tube exhaust device used after abdominal surgery - Google Patents
Anal tube exhaust device used after abdominal surgery Download PDFInfo
- Publication number
- CN108969815B CN108969815B CN201810880421.6A CN201810880421A CN108969815B CN 108969815 B CN108969815 B CN 108969815B CN 201810880421 A CN201810880421 A CN 201810880421A CN 108969815 B CN108969815 B CN 108969815B
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- China
- Prior art keywords
- electromagnet
- collecting bag
- air collecting
- gas
- shell
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000012084 abdominal surgery Methods 0.000 title claims abstract description 11
- 230000009471 action Effects 0.000 claims abstract description 7
- 230000005389 magnetism Effects 0.000 claims abstract description 7
- 210000002255 anal canal Anatomy 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 40
- 229910052742 iron Inorganic materials 0.000 claims description 20
- 210000000436 anus Anatomy 0.000 claims description 4
- 210000001035 gastrointestinal tract Anatomy 0.000 claims description 4
- 238000013022 venting Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims 1
- 230000000474 nursing effect Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000036541 health Effects 0.000 abstract description 2
- 230000000968 intestinal effect Effects 0.000 description 9
- 206010000060 Abdominal distension Diseases 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000003187 abdominal effect Effects 0.000 description 2
- 206010016766 flatulence Diseases 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000034657 Convalescence Diseases 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008855 peristalsis Effects 0.000 description 1
Images
Classifications
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/69—Drainage containers not being adapted for subjection to vacuum, e.g. bags
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1042—Alimentary tract
- A61M2210/1067—Anus
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
The invention relates to an anal canal exhaust device used after abdominal surgery, which comprises a shell, an electromagnet, an air collecting bag, a valve and a mandril, wherein the electromagnet is arranged in the shell; a positive electrode contact is arranged in the middle of the bottom of the electromagnet, and a negative electrode contact which is contacted with the positive electrode contact after the gas collection bag collects a certain amount of gas and extends is arranged in the middle of the top of the gas collection bag; the positive electrode contact and the negative electrode contact are respectively connected with the positive electrode and the negative electrode of an external power supply through a circuit and are used for enabling the electromagnet to be electrified to generate magnetism after the gas collection bag collects a certain amount of gas and extends, so that the electromagnet extrudes the gas collection bag, and meanwhile, the valve opens the exhaust port to exhaust the gas in the gas collection bag; after the air collecting bag is extruded to the inside to form negative pressure, the electromagnet overcomes the attraction force to slide upwards under the action of the total elastic force. The invention has the beneficial effects that: the nursing staff is not needed to monitor specially, and meanwhile, the nursing staff is not needed to deflate continuously and repeatedly, so that the working efficiency is improved, the labor is saved, and the patient can recover the health as soon as possible.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to an anal tube exhaust device used after abdominal surgery.
Background
Abdominal distension (abdomi nal displacement) is caused by excessive gas in the intestinal tract and is a comprehensive expression of subjective feeling of abdominal distension and objective retention of abdominal gas. Intestinal flatulence after abdominal surgery is mostly caused by slow intestinal peristalsis and intestinal paralysis. The conventional anal tube is adopted to exhaust intestinal flatulence in the past clinic. The operation is carried out according to a conventional anal tube exhaust method, the anal tube is inserted into the anus by 15-18cm, the disposable negative pressure drainage device is connected, after the negative pressure drainage device is sucked and expanded to the limit, the negative pressure drainage device needs to be deflated manually to enable the interior of the negative pressure drainage device to form a negative pressure state, and then the negative pressure drainage device is connected with the anal tube to continuously suck air. The operation is repeated until the accumulated qi in the intestinal cavity is exhausted and the abdominal distension is relieved.
Above-mentioned operation mode needs special nursing staff to keep watch on the negative pressure drainage ware always, and often nursing staff can also have other work simultaneously, often takes place the negative pressure drainage ware and breathes in and expand not in time exhaust after the limit, leads to the negative pressure drainage ware can not continuously suck out the long-pending qi in the intestinal cavity, influences treatment, extension patient's convalescence.
Disclosure of Invention
In summary, in order to solve the defects of the prior art, the invention provides an anal tube venting device used after an abdominal surgery.
The technical scheme for solving the technical problems is as follows: an anal canal exhaust device used after abdominal surgery comprises a shell, an electromagnet, an air collecting bag, an anal canal, a valve and a mandril; the shell is made of plastic, an opening is formed in the bottom of the shell, and an iron block is sealed at the opening in the bottom of the shell; the air collecting bag is a bag body which can be correspondingly expanded or contracted after the internal air pressure is changed, is fixed on the iron block and corresponds to the position of the bottom in the shell, and the initial state of the air collecting bag is a contracted state with negative pressure formed inside; one end of the anal tube is positioned in the anus of the patient, and the other end of the anal tube penetrates through the iron block and is communicated with the gas collecting bag to be used for discharging gas in the intestinal tract of the patient into the gas collecting bag; vertical sliding grooves are respectively formed in the inner side walls opposite to the upper portion of the shell, two ends of the electromagnet can be respectively positioned in the sliding grooves in a vertically sliding mode, and first return springs which abut against the bottom of the sliding grooves and the end portions of the electromagnet are respectively arranged in the sliding grooves;
an outlet is formed in one side of the bottom of the air collecting bag, an air exhaust port is formed in the outer side of the bottom of the shell, which corresponds to the outlet, and the outlet is communicated with the air exhaust port through an output air passage; the lower end of the valve is blocked at the outlet, and the upper end of the valve vertically penetrates through the side wall of the output air passage upwards and then reaches the upper part of the output air passage; a baffle is horizontally fixed at the upper end of the valve, and a second return spring is sleeved on the valve at a position corresponding to the position between the baffle and the output air passage; one end of the ejector rod is fixedly connected to one side of the electromagnet, and the other end of the ejector rod vertically extends downwards for a certain distance towards the direction of the baffle;
a positive electrode contact is arranged in the middle of the bottom of the electromagnet, and a negative electrode contact which is contacted with the positive electrode contact after the gas collection bag collects a certain amount of gas and extends is arranged in the middle of the top of the gas collection bag; the positive electrode contact and the negative electrode contact are respectively connected with a positive electrode and a negative electrode of an external power supply through a circuit and used for enabling the electromagnet to be electrified to generate magnetism after the gas collection bag collects a certain amount of gas and extends, so that the electromagnet slides towards the iron block and extrudes the gas collection bag after compressing the first return spring, and meanwhile, the ejector rod pushes the valve to open the gas outlet to discharge the gas in the gas collection bag after compressing the second return spring through the baffle plate; after the air collecting bag is extruded to the inside to form negative pressure, the total elastic force generated by the deformation of the first return spring and the second return spring is larger than the attractive force of the iron block to the electromagnet, so that the electromagnet overcomes the attractive force to slide upwards under the action of the total elastic force.
The invention has the beneficial effects that: the nursing staff is not needed to monitor specially, and meanwhile, the nursing staff is not needed to deflate continuously and repeatedly, so that the working efficiency is improved, the labor is saved, and the patient can recover the health as soon as possible.
On the basis of the technical scheme, the invention can be further improved as follows:
furthermore, a guide groove is formed in the position, corresponding to the end part of the baffle, of the inner side wall of the shell, and the end part of the baffle can be located in the guide groove in a vertically sliding mode.
The beneficial effect of adopting the further scheme is that: the valve slides up and down under the action of the guide groove, so that the smooth opening and closing of the exhaust port can be ensured.
Further, one end of the outlet communicated with the outside of the shell is of a conical opening structure, and one side, close to the outside of the shell, of the conical opening structure is larger; the lower end of the valve is a conical block structure matched with the conical opening structure.
The beneficial effect of adopting the further scheme is that: the valve has good tightness to the exhaust port, and the tightness of the air collecting bag is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view A of FIG. 1;
fig. 3 is a sectional view B-B of fig. 1.
Wherein the dotted line in the figure indicates the position of the valve after opening the exhaust port.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a shell, 2, an electromagnet, 3, an air collecting bag, 4, an anal tube, 5, a valve, 6, a push rod, 7, an iron block, 8, a sliding groove, 9, a first return spring, 10, an outlet, 11, an exhaust port, 12, an air conveying channel, 13, a baffle, 14, a second return spring, 15, a positive electrode contact, 16, a negative electrode contact, 17 and a guide groove.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, the anal canal exhausting device used after the abdominal surgery comprises a shell 1, an electromagnet 2, an air collecting bag 3, an anal canal 4, a valve 5 and a mandril 6. The shell 1 is made of plastic, an opening is formed in the bottom of the shell, and an iron block 7 is sealed at the opening in the bottom of the shell 1. The air collecting bag 3 is a bag body which can be correspondingly expanded or contracted after the internal air pressure is changed, is fixed on the iron block 7 and corresponds to the position of the inner bottom of the shell 1, and the initial state of the air collecting bag 3 is a contracted state in which negative pressure is formed inside. One end of the anal tube 4 is positioned in the anus of the patient, and the other end of the anal tube passes through the iron block 7 and then is communicated with the air collecting bag 3 to discharge the gas in the intestinal tract of the patient into the air collecting bag 3. Vertical sliding grooves 8 are respectively formed in the inner side walls opposite to the upper portion of the shell 1, two ends of the electromagnet 2 are respectively located in the sliding grooves 8 in a vertically sliding mode, and first return springs 9 which abut against the bottoms of the sliding grooves 8 and the end portions of the electromagnet 2 are respectively arranged in the sliding grooves 8. As shown in fig. 3, the sliding groove 8 includes a cylindrical structure part and a rectangular cubic structure part which are communicated with each other, the cylindrical structure part is located at an intermediate position inside the side wall of the housing 1, the rectangular cubic structure part is located at a side of the cylindrical structure part close to the inside of the housing 1, in the cylindrical structure part of the first return spring 9, the end part of the electromagnet 2 passes through the rectangular cubic structure part and then reaches the inside of the cylindrical structure part and is connected with the end part of the first return spring 9. In addition, the widths of the cylindrical structural portion and the first return spring 9 are both larger than the width of the elongated square structural portion to prevent the first return spring 9 from popping out of the elongated square structural portion.
An outlet 10 is arranged on one side of the bottom of the air collecting bag 3, an exhaust port 11 is arranged on the outer side of the bottom of the shell 1 corresponding to the outlet 10, and the outlet 10 is communicated with the exhaust port 11 through an output air channel 12. The lower end of the valve 5 is blocked at the outlet 10, and the upper end of the valve vertically penetrates through the side wall of the output air flue 12 upwards and then reaches the upper part of the output air flue 12. The end of the exhaust port 11, which is communicated with the outside of the housing 1, is a conical opening structure, and the side of the conical opening structure, which is close to the outside of the housing 1, is larger. The lower end of the valve 5 is a conical block structure matched with the conical opening structure. A baffle 13 is horizontally fixed at the upper end of the valve 5, and a second return spring 14 is sleeved on the valve 5 corresponding to the position between the baffle 13 and the output air duct 12. One end of the ejector rod 6 is fixedly connected to one side of the electromagnet 2, and the other end of the ejector rod vertically extends downwards for a certain distance towards the baffle 13. A guide groove 17 is formed in the position, corresponding to the end portion of the baffle 13, of the inner side wall of the shell 1, and the end portion of the baffle 13 can slide up and down in the guide groove 17.
A positive electrode contact 15 is arranged in the middle of the bottom of the electromagnet 2, and a negative electrode contact 16 which is contacted with the positive electrode contact 15 after the gas collecting bag 3 collects a certain amount of gas and extends is arranged in the middle of the top of the gas collecting bag 3. The positive electrode contact 15 and the negative electrode contact 16 are respectively connected with the positive electrode and the negative electrode of an external power supply through a circuit and are used for enabling the electromagnet 2 to be electrified to generate magnetism after the air collecting bag 3 collects a certain amount of gas and extends, further enabling the electromagnet 2 to slide towards the iron block 7 and extrude the air collecting bag 3 after compressing the first return spring 9, and meanwhile, the push rod 6 pushes the valve 5 to open the exhaust port 11 to exhaust the gas in the air collecting bag 3 after compressing the second return spring 14 through the baffle 13. After the air collecting bag 3 is pressed to the inside to form negative pressure, the total elastic force generated by the deformation of the first return spring 9 and the second return spring 14 is greater than the attractive force of the iron block 7 to the electromagnet 2, so that the electromagnet 2 overcomes the attractive force to slide upwards under the action of the total elastic force.
At first, the inside of the gas collecting bag 3 in the anal tube exhaust device is in a negative pressure state (contraction), and the gas accumulated in the intestinal cavity of the patient is collected into the gas collecting bag 3 after passing through the anal tube 4 under the suction force of the negative pressure of the gas collecting bag 3. Along with the continuous progress of the air suction work, the air collecting bag 3 continuously extends (expands), after the air collecting bag 3 extends to a certain degree, a negative electrode contact 16 on the air collecting bag is contacted with a positive electrode contact 15 on the electromagnet 2 to enable the electromagnet 2 to be electrified to generate magnetism, the electromagnet 2 is attracted by an iron block 7 below to slide downwards and extrude the air collecting bag 3 after generating magnetism, and meanwhile, the ejector rod 6 pushes open the valve 5 on the exhaust port 11 in the gliding process of the electromagnet 2, so that the gas collected in the air collecting bag 3 is exhausted from the exhaust port 11 when the air collecting bag 3 is extruded. In addition, when the gas collection bag 3 exhausts, the first return spring 9 and the second return spring 14 are continuously compressed and deformed to be larger and larger, the total elastic force formed by the two is larger and larger, the total elastic force forms the resistance of the electromagnet 2 to slide downwards, the attraction force of the iron block 7 on the electromagnet 2 in the sliding process is constant (the current is constant), when the gas collection bag 3 is pressed to the state that the inside of the electromagnet 2 forms negative pressure, the total elastic force generated by the deformation of the first return spring 9 and the second return spring 14 is larger than the attraction force of the iron block 7 on the electromagnet 2, at the moment, the electromagnet 2 slides upwards under the action of the total elastic force of the first return spring 9 and the second return spring 14, as long as the electromagnet 2 slides upwards, the negative electrode contact 16 and the positive electrode contact 15 are separated from each other to enable the electromagnet 2 to lose magnetism, and further enable the electromagnet 2 to synchronously lose the attraction force of the iron block, the electromagnet 2 is reset rapidly under the action of the first reset spring 9 and the second reset spring 14, the valve 5 is also reset to block the exhaust port 11, and the gas collection bag 3 starts a second period of absorbing the accumulated gas in the intestinal cavity of the patient in a negative pressure state until the accumulated gas in the intestinal cavity is completely absorbed and the abdominal distension of the patient is relieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. An anal tube exhaust device used after abdominal surgery is characterized by comprising a shell (1), an electromagnet (2), a gas collection bag (3), an anal tube (4), a valve (5) and a mandril (6); the shell (1) is made of plastic, an opening is formed in the bottom of the shell, and an iron block (7) is sealed at the opening in the bottom of the shell (1); the air collecting bag (3) is a bag body which can be correspondingly expanded or contracted after the internal air pressure is changed, is fixed on the iron block (7) and corresponds to the position of the inner bottom of the shell (1), and the initial state of the air collecting bag (3) is a contracted state with negative pressure formed inside; one end of the anal tube (4) is positioned in the anus of the patient, and the other end of the anal tube penetrates through the iron block (7) and then is communicated with the air collecting bag (3) for discharging the gas in the intestinal tract of the patient into the air collecting bag (3); vertical sliding chutes (8) are respectively arranged on the opposite inner side walls of the upper part of the shell (1), two ends of the electromagnet (2) are respectively positioned in the sliding chutes (8) in a vertically sliding manner, and first return springs (9) which are abutted against the bottom of the sliding chutes (8) and the end parts of the electromagnet (2) are respectively arranged in the sliding chutes (8);
an outlet (10) is formed in one side of the bottom of the air collecting bag (3), an exhaust port (11) is formed in the bottom of the shell (1) and corresponds to the outer side of the outlet (10), and the outlet (10) is communicated with the exhaust port (11) through an output air passage (12); the lower end of the valve (5) is blocked at the outlet (10), and the upper end of the valve vertically penetrates through the side wall of the output air flue (12) upwards and then reaches the upper part of the output air flue (12); a baffle plate (13) is horizontally fixed at the upper end of the valve (5), and a second return spring (14) is sleeved on the valve (5) corresponding to the position between the baffle plate (13) and the output air channel (12); one end of the ejector rod (6) is fixedly connected to one side of the electromagnet (2), and the other end of the ejector rod vertically extends downwards for a certain distance towards the direction of the baffle (13);
a positive electrode contact (15) is arranged in the middle of the bottom of the electromagnet (2), and a negative electrode contact (16) which is contacted with the positive electrode contact (15) after the air collecting bag (3) collects a certain amount of gas and extends is arranged in the middle of the top of the air collecting bag (3); the positive electrode contact (15) and the negative electrode contact (16) are respectively connected with the positive electrode and the negative electrode of an external power supply through a circuit and are used for enabling the electromagnet (2) to be electrified to generate magnetism after the air collecting bag (3) collects a certain amount of gas and extends, further enabling the electromagnet (2) to compress the first return spring (9) and then slide towards the iron block (7) and extrude the air collecting bag (3), and meanwhile, the ejector rod (6) compresses the second return spring (14) through the baffle (13) and then pushes the valve (5) to open the exhaust port (11) so as to exhaust the gas in the air collecting bag (3); after the air collecting bag (3) is extruded to the inside to form negative pressure, the total elastic force generated by the deformation of the first return spring (9) and the second return spring (14) is greater than the attractive force of the iron block (7) to the electromagnet (2), so that the electromagnet (2) overcomes the attractive force to slide upwards under the action of the total elastic force.
2. Anal canal ventilation device used after abdominal surgery according to claim 1, characterized in that the inner side wall of the housing (1) is provided with a guide groove (17) at the position corresponding to the end of the baffle (13), and the end of the baffle (13) can slide up and down in the guide groove (17).
3. Anal venting device after abdominal surgery according to claim 1 or 2, wherein the end of the venting opening (11) communicating with the outside of the housing (1) is a cone-shaped opening structure, and the side of the cone-shaped opening structure close to the outside of the housing (1) is larger; the lower end of the valve (5) is a conical block structure matched with the conical opening structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810880421.6A CN108969815B (en) | 2018-08-03 | 2018-08-03 | Anal tube exhaust device used after abdominal surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810880421.6A CN108969815B (en) | 2018-08-03 | 2018-08-03 | Anal tube exhaust device used after abdominal surgery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108969815A CN108969815A (en) | 2018-12-11 |
| CN108969815B true CN108969815B (en) | 2020-11-03 |
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ID=64555708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810880421.6A Expired - Fee Related CN108969815B (en) | 2018-08-03 | 2018-08-03 | Anal tube exhaust device used after abdominal surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108969815B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022273B (en) * | 2020-09-18 | 2022-03-18 | 中国人民解放军陆军军医大学第一附属医院 | Atmospheric pressure tourniquet suitable for operation of four limbs near-end |
| CN112516393B (en) * | 2020-12-01 | 2022-06-14 | 中国人民解放军陆军军医大学第一附属医院 | Anti-reflux drainage device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1952065A1 (en) * | 1969-10-16 | 1971-04-29 | Harald Wilke | Bellows, in particular for medical purposes |
| AU604028B2 (en) * | 1986-06-18 | 1990-12-06 | Allan Samuel Garfield | Cardiopulmonary resuscitation device |
| US5645540A (en) * | 1994-10-11 | 1997-07-08 | Stryker Corporation | Blood conservation system |
| CN201692379U (en) * | 2010-06-30 | 2011-01-05 | 江苏埃立特医疗科技有限公司 | A negative pressure suction device with sound and light alarm and automatic control of negative pressure |
| DE102015108754B8 (en) * | 2015-06-02 | 2018-03-22 | Primed Halberstadt Medizintechnik Gmbh | Device for drainage, in particular for drainage of a chronic subdural hematoma |
| CN205108486U (en) * | 2015-10-11 | 2016-03-30 | 李祖亮 | Automatic be interrupted suction device |
| CN106924831A (en) * | 2017-03-24 | 2017-07-07 | 陈云松 | A kind of Portable Automatic negative pressure drainage device |
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2018
- 2018-08-03 CN CN201810880421.6A patent/CN108969815B/en not_active Expired - Fee Related
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| CN108969815A (en) | 2018-12-11 |
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Inventor after: Wu Lianzi Inventor after: Wu Denghui Inventor after: Zou Jianqing Inventor before: Zou Jianqing |
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Effective date of registration: 20200928 Address after: Floor 2, building B13, Huachuang Industrial Park, Shiji Town, Panyu District, Guangzhou City, Guangdong Province 510000 Applicant after: Wu Lianzi Address before: 541106 the Guangxi Zhuang Autonomous Region Guilin Guilin District Liangjiang town millet Village Primary School Applicant before: Zou Jianqing |
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