CN106039540B - Double-sleeve nasogastric tube with washing fluid capable of being externally drained and drainage and liquid filling method thereof - Google Patents

Double-sleeve nasogastric tube with washing fluid capable of being externally drained and drainage and liquid filling method thereof Download PDF

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Publication number
CN106039540B
CN106039540B CN201610671150.4A CN201610671150A CN106039540B CN 106039540 B CN106039540 B CN 106039540B CN 201610671150 A CN201610671150 A CN 201610671150A CN 106039540 B CN106039540 B CN 106039540B
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hole
tail end
sleeve
inner sleeve
drainage
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CN106039540A (en
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左晓艳
丁洪琼
万书桓
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Tongji Medical College of Huazhong University of Science and Technology
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Tongji Medical College of Huazhong University of Science and Technology
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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
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J15/00—Feeding-tubes for therapeutic purposes
    • A61J15/0003—Nasal or oral feeding-tubes, e.g. tube entering body through nose or mouth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J15/00—Feeding-tubes for therapeutic purposes
    • A61J15/0026—Parts, details or accessories for feeding-tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J15/00—Feeding-tubes for therapeutic purposes
    • A61J15/0026—Parts, details or accessories for feeding-tubes
    • A61J15/0073—Multi-lumen tubes
    • 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
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • 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
    • A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
    • 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
    • A61M2025/0004—Catheters; Hollow probes having two or more concentrically arranged tubes for forming a concentric catheter system
    • 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
    • A61M2025/0008—Catheters; Hollow probes having visible markings on its surface, i.e. visible to the naked eye, for any purpose, e.g. insertion depth markers, rotational markers or identification of type
    • 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
    • A61M2025/0019—Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
    • 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
    • A61M2210/06—Head
    • A61M2210/0618—Nose
    • 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
    • A61M2210/1053—Stomach

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

The invention discloses a double-sleeve nasogastric tube with externally drainable flushing fluid, and relates to a structure of a nasogastric tube. The stomach tube comprises a stomach tube body, an outer sleeve, an inner sleeve, a first through hole, a second through hole and a third through hole; the drainage tube is fixed at the front end of the outer part of the outer sleeve; the front end part of the inner sleeve and the front end part of the outer sleeve are both blind ends, and the tail end part of the inner sleeve is connected with an anti-pollution cover for sealing the tail end part of the inner sleeve; the tail end of the inner sleeve and the tail end of the drainage tube are both in a conical expansion shape, the tail end of the inner sleeve is connected with first external equipment, and the tail end of the drainage tube is connected with second external equipment; the tail end of the inner sleeve or the tail end of the outer sleeve is provided with a nasal feeding liquid injection mark and a flushing liquid drainage mark. The invention has simple structure and convenient operation, not only can enable the flushing fluid to flush the pipeline of the nasogastric tube, but also can prevent the flushing fluid and nutrient solution (or medicine) from being filled into the body of a patient. The invention also relates to a drainage and irrigation method of the double-sleeve nasogastric tube with the irrigation liquid capable of conducting external drainage.

Description

Double-sleeve nasogastric tube with washing fluid capable of being externally drained and drainage and liquid filling method thereof
Technical Field
The invention belongs to the technical field of medical apparatus and instruments, and particularly relates to a nasogastric tube structure, in particular to a double-sleeve nasogastric tube with flushing fluid capable of being drained externally. The invention also relates to a drainage and irrigation method of the double-sleeve nasogastric tube with the irrigation liquid capable of conducting external drainage.
Background
Adopt nasogastric tube to fill nutrient solution (or medicine) to patient's stomach and have obtained extensive application in clinic, fill nutrient solution (or medicine) back to the patient through nasogastric tube at every turn, people still need wash the pipeline of nasogastric tube (stomach tube body) in order to prevent that the pipeline is inside to be blockked up. The prior art is when washing the patient through nasogastric tube, and washing liquid and nutrient solution (or medicine) can be poured into the patient together, can make the patient produce local uncomfortable and feel, and can let the patient ingest unnecessary moisture income volume, therefore needs to improve.
Disclosure of Invention
The first purpose of the invention is to overcome the defects of the background art, and provide a double-sleeve nasogastric tube with externally drainable flushing fluid, which has a simple structure and is convenient to operate, not only can enable the flushing fluid to flush the pipeline of the nasogastric tube, but also can prevent the flushing fluid and nutrient solution (or medicine) from being filled into the body of a patient, and reduce the discomfort of the patient when the nutrient solution (or medicine) is filled into the body of the patient.
The second purpose of the present invention is to overcome the disadvantages of the background art, and to provide a drainage and irrigation method for a double-sleeve nasogastric tube, in which an irrigation fluid can be externally drained, the method has a simple structure and is convenient to operate, the irrigation fluid can be used for flushing the pipeline of the nasogastric tube, the irrigation fluid and a nutrient solution (or a drug) can be prevented from being filled into the body of a patient, and discomfort of the patient during the injection of the nutrient solution (or the drug) can be reduced.
In order to achieve the purpose, the technical scheme of the invention is as follows: but two cover nasogastric tubes of flush fluid external drainage, including the stomach tube body, its characterized in that: the stomach tube body comprises an outer sleeve positioned on the outer layer and an inner sleeve positioned on the inner layer, the front end of the inner sleeve is contacted with the front end of the outer sleeve, and the tail end of the inner sleeve is in threaded connection with the tail end of the outer sleeve and penetrates out of the tail end of the outer sleeve; the side wall of the front end of the inner sleeve is provided with a first through hole, the side wall of the front end of the outer sleeve is provided with a second through hole and a third through hole, and the diameter of the second through hole and the diameter of the third through hole are not smaller than the diameter of the first through hole; a drainage tube is fixed at the front end of the outer part of the outer sleeve and is communicated with the third through hole, the drainage tube and the outer sleeve are of an integrated structure, the cross section of the drainage tube is arc-shaped, and the length of the drainage tube is greater than that of the outer sleeve; the front end part of the inner sleeve and the front end part of the outer sleeve are both blind ends, and the tail end part of the inner sleeve is connected with an anti-pollution cover for sealing the tail end part of the inner sleeve; the tail end part of the inner sleeve and the tail end part of the drainage tube are both in a conical expansion shape, the tail end of the inner sleeve is connected with first external equipment, and the tail end of the drainage tube is connected with second external equipment; the nasal feeding liquid injection mark is arranged at the tail end of the inner sleeve or the tail end of the outer sleeve when the first through hole and the second through hole are in a communicated state and the third through hole is in a closed state, and the flushing liquid drainage mark is arranged at the tail end of the inner sleeve or the tail end of the outer sleeve when the first through hole and the third through hole are in a communicated state and the second through hole is in a closed state.
In the above technical solution, the center line of the first through hole, the center line of the second through hole, and the center line of the third through hole are on the same horizontal plane.
In the technical scheme, the number of the first through holes is two, the number of the second through holes is two, the number of the third through holes is one, the center lines of the two first through holes are perpendicular to the axis of the stomach tube body, the center lines of the two second through holes are perpendicular to the axis of the stomach tube body, the center line of the third through hole is perpendicular to the axis of the stomach tube body, the included angle between the center lines of the two first through holes is 180 degrees, and the included angle between the center lines of the two second through holes is 180 degrees; the included angle between the center line of the first through hole and the center line of the third through hole is 90 degrees.
In the above technical solution, the cross section of the outer sleeve and the cross section of the inner sleeve are both elliptical.
In order to achieve the second object, the technical scheme of the invention is as follows: the drainage and irrigation method of the double-sleeve nasogastric tube with the externally drainable irrigation liquid is characterized by comprising the following process steps of: two first through holes are formed in the side wall of the front end of the inner sleeve, two second through holes and a third through hole are formed in the side wall of the front end of the outer sleeve, a drainage tube is positioned at the front end of the outer sleeve and communicated with the third through hole, and the center lines of all the first through holes, the center lines of all the second through holes and the center lines of the third through holes are on the same horizontal plane; step two: each first through hole is provided with a first mark at the tail end of the inner sleeve correspondingly, each second through hole is provided with a second mark at the tail end of the outer sleeve correspondingly, and each third through hole is provided with a third mark at the tail end of the outer sleeve correspondingly; step three: when the nasal feeding liquid needs to be infused into the stomach of a patient, the inner sleeve is rotated to the position corresponding to the position of the nasal feeding liquid infusion mark; when the irrigating liquid needs to be drained out of the stomach tube body, the inner sleeve is rotated to a position corresponding to the position of the irrigating liquid drainage mark; step four: when the inner sleeve rotates to the position corresponding to the nasal feeding liquid injection mark, all the first marks and all the second marks are in a one-to-one corresponding state, namely when each first through hole is communicated with the corresponding second through hole, and the third through hole is in a closed state; step five: when the inner sleeve rotates to the position corresponding to the position of the flushing fluid drainage mark, one first mark in the two first marks is in a corresponding state with the third mark, namely one first through hole in the first through holes is communicated with the third through hole, and the other first through hole and all the second through holes in the two first through holes are in a closed state.
In actual work, the first external equipment can be one of a drainage bag, a syringe and negative pressure, and the second external equipment can be the drainage bag or the negative pressure.
The invention has simple structure and convenient operation, not only can enable the flushing fluid to flush the pipeline of the nasogastric tube, but also can prevent the flushing fluid and nutrient solution (or medicine) from being filled into the body of a patient, thereby reducing the uncomfortable feeling of the patient when the nutrient solution (or medicine) is filled. Meanwhile, the invention can also enable a patient to receive more accurate washing liquid input, so that people can thoroughly wash the nasogastric tube with more washing liquid, and the stomach tube can be more effectively prevented from being blocked.
Drawings
FIG. 1 is a schematic view of the present invention.
FIG. 2 is a schematic view of the structure of the present invention without a draft tube.
Fig. 3 is a cross-sectional view of fig. 2.
Fig. 4 is a sectional view a-a of fig. 1.
In the figure, 1-a stomach tube body, 2-an outer sleeve, 3-an inner sleeve, 4-a blind end, 5-a first through hole, 6-a second through hole, 7-a third through hole, 8-a nasal feeding liquid injection mark, 9-a flushing liquid drainage mark, 10-a first mark, 11-a second mark, 12-a third mark, 13-a drainage tube, 14-a first external device, 15-a second external device, 16-an anti-pollution cover.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily understood by the description.
With reference to the accompanying drawings: but two cover nasogastric tubes of flush fluid external drainage, including stomach tube body 1, its characterized in that: the stomach tube body 1 comprises an outer sleeve 2 positioned on the outer layer and an inner sleeve 3 positioned on the inner layer, the front end of the inner sleeve 3 is contacted with the front end of the outer sleeve 2, and the tail end of the inner sleeve 3 is in threaded connection with the tail end of the outer sleeve 2 and penetrates out of the tail end of the outer sleeve 2; a first through hole 5 is formed in the side wall of the front end of the inner sleeve 3, a second through hole 6 and a third through hole 7 are formed in the side wall of the front end of the outer sleeve 2, and the diameter of the second through hole 6 and the diameter of the third through hole 7 are not smaller than the diameter of the first through hole 5; a drainage tube 13 is fixed at the front end of the outer part of the outer sleeve 2 and is communicated with the third through hole 7, the drainage tube 13 and the outer sleeve 2 are of an integrated structure, the cross section of the drainage tube 13 is arc-shaped, and the length of the drainage tube 13 is greater than that of the outer sleeve 2; the front end part of the inner sleeve 3 and the front end part of the outer sleeve 2 are both blind ends 4, and the tail end part of the inner sleeve 3 is connected with an anti-pollution cover 16 for sealing the tail end part of the inner sleeve 3; the tail end part of the inner sleeve 3 and the tail end part of the drainage tube 13 are both in a conical expansion shape, the tail end of the inner sleeve 3 is connected with a first external device 14, and the tail end of the drainage tube 13 is connected with a second external device 15; and the tail end of the inner sleeve 3 or the tail end of the outer sleeve 2 is provided with a nasal feeding liquid injection mark 8 when the first through hole 5 and the second through hole 6 are in a communicated state and the third through hole 7 is in a closed state, and a flushing liquid drainage mark 9 when the first through hole 5 and the third through hole 7 are in a communicated state and the second through hole 6 is in a closed state.
Preferably, the center line of the first through hole 5, the center line of the second through hole 6 and the center line of the third through hole 7 are on the same horizontal plane.
Preferably, the number of the first through holes 5 is two, the number of the second through holes 6 is two, the number of the third through holes 7 is one, the center lines of the two first through holes 5 are perpendicular to the axis of the gastric tube body 1, the center lines of the two second through holes 6 are perpendicular to the axis of the gastric tube body 1, the center line of the third through hole 7 is perpendicular to the axis of the gastric tube body 1, the included angle between the center lines of the two first through holes 5 is 180 degrees, and the included angle between the center lines of the two second through holes 6 is 180 degrees; the included angle between the center line of the first through hole 5 and the center line of the third through hole 7 is 90 degrees.
Preferably, the cross section of the outer sleeve 2 and the cross section of the inner sleeve are both elliptical.
In actual work, the drainage and irrigation method of the double-sleeve nasogastric tube with the externally drainable flushing fluid comprises the following process steps: two first through holes 5 are arranged on the side wall of the front end of the inner sleeve 2, two second through holes 6 and a third through hole 7 are arranged on the side wall of the front end of the outer sleeve, a drainage tube 13 is positioned at the front end outside the outer sleeve 2 and is communicated with the third through hole 7, and the central lines of all the first through holes 5, the central lines of all the second through holes 6 and the central lines of the third through holes 7 are on the same horizontal plane; step two: each first through hole 5 is provided with a first mark 10 at the tail end of the inner sleeve 3 correspondingly, each second through hole 6 is provided with a second mark 11 at the tail end of the outer sleeve 2 correspondingly, and the third through hole 7 is provided with a third mark 12 at the tail end of the outer sleeve 2 correspondingly; step three: when the nasal feeding liquid needs to be infused into the stomach of a patient, the inner sleeve 3 is rotated to the position corresponding to the position of the nasal feeding liquid infusion mark 8; when the irrigating liquid needs to be drained out of the stomach tube body 1, the inner sleeve 3 is rotated to the position corresponding to the position of the irrigating liquid drainage mark 9; step four: when the inner sleeve 3 rotates to the position corresponding to the nasal feeding liquid injection mark 8, all the first marks 10 and all the second marks 11 are in a one-to-one corresponding state, namely when each first through hole 5 is respectively provided with one second through hole 6 communicated with the first through hole, and the third through hole 7 is in a closed state; step five: when the inner sleeve 3 rotates to the position corresponding to the position of the flushing liquid drainage mark 9, one first mark 11 of the two first marks 11 and the third mark 12 are in a corresponding state, namely one first through hole 5 of the first through holes 5 is communicated with the third through hole 7, and the other first through hole 5 of the two first through holes 5 and all the second through holes 6 are in a closed state.
Other parts not described belong to the prior art.

Claims (3)

1. But two cover nasogastric tubes of flush fluid external drainage, including stomach tube body (1), its characterized in that: the stomach tube body (1) comprises an outer sleeve (2) positioned on the outer layer and an inner sleeve (3) positioned on the inner layer, the front end of the inner sleeve (3) is contacted with the front end of the outer sleeve (2), and the tail end of the inner sleeve (3) is in threaded connection with the tail end of the outer sleeve (2) and penetrates out of the tail end of the outer sleeve (2);
a first through hole (5) is formed in the side wall of the front end of the inner sleeve (3), a second through hole (6) and a third through hole (7) are formed in the side wall of the front end of the outer sleeve (2), and the diameter of the second through hole (6) and the diameter of the third through hole (7) are not smaller than the diameter of the first through hole (5);
a drainage tube (13) is fixed at the front end of the outer part of the outer sleeve (2) and is communicated with the third through hole (7), the drainage tube (13) and the outer sleeve (2) are of an integrated structure, the cross section of the drainage tube (13) is arc-shaped, and the length of the drainage tube (13) is greater than that of the outer sleeve (2);
the front end part of the inner sleeve (3) and the front end part of the outer sleeve (2) are both blind ends (4), and the tail end part of the inner sleeve (3) is connected with an anti-pollution cover (16) for sealing the tail end part of the inner sleeve (3);
the tail end of the inner sleeve (3) and the tail end of the drainage tube (13) are both in a conical expansion shape, the tail end of the inner sleeve (3) is connected with a first external device (14), and the tail end of the drainage tube (13) is connected with a second external device (15);
the tail end of the inner sleeve (3) or the tail end of the outer sleeve (2) is provided with a nasal feeding liquid injection mark (8) when the first through hole (5) and the second through hole (6) are in a communicated state and the third through hole (7) is in a closed state, and a flushing liquid drainage mark (9) when the first through hole (5) and the third through hole (7) are in a communicated state and the second through hole (6) is in a closed state;
the stomach tube comprises a stomach tube body (1), two first through holes (5), two second through holes (6) and one third through hole (7), wherein the center lines of the two first through holes (5) are perpendicular to the axis of the stomach tube body (1), the center lines of the two second through holes (6) are perpendicular to the axis of the stomach tube body (1), the center line of the third through hole (7) is perpendicular to the axis of the stomach tube body (1), the included angle between the center lines of the two first through holes (5) is 180 degrees, and the included angle between the center lines of the two second through holes (6) is 180 degrees; the included angle between the center line of the first through hole (5) and the center line of the third through hole (7) is 90 degrees.
2. The double-sleeved nasogastric tube through which irrigating fluid can be externally drained according to claim 1, wherein: the central line of the first through hole (5), the central line of the second through hole (6) and the central line of the third through hole (7) are on the same horizontal plane; every first through-hole (5) all sets up a first mark (10) respectively corresponding at interior sleeve pipe (3) tail end, every second through-hole (6) all sets up a second mark (11) respectively corresponding at outer sleeve pipe (2) tail end, and third through-hole (7) set up a third mark (12) corresponding at outer sleeve pipe (2) tail end.
3. The irrigable external drainage double-sleeved nasogastric tube according to any one of claims 1 to 2, wherein: the cross section of the outer sleeve (2) and the cross section of the inner sleeve are both elliptical.
CN201610671150.4A 2016-08-16 2016-08-16 Double-sleeve nasogastric tube with washing fluid capable of being externally drained and drainage and liquid filling method thereof Active CN106039540B (en)

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US10632280B2 (en) * 2017-09-15 2020-04-28 Neosinus Health Inc. Devices and methods for delivering fluid to a nasal cavity
CN113101428B (en) * 2021-04-06 2022-10-25 河南科技大学第一附属医院 Peritoneal irrigation prevents blockking up preset tubing assembly with pneumatic telescopic
CN113101426B (en) * 2021-04-06 2022-11-04 河南科技大学第一附属医院 Pre-arranged catheter assembly for abdominal cavity perfusion
CN113101427B (en) * 2021-04-06 2022-10-25 河南科技大学第一附属医院 Double-tube drainage preset tube for abdominal cavity perfusion

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CN201840523U (en) * 2010-09-03 2011-05-25 成都市新津事丰医疗器械有限公司 Disposable surgical irrigation drainage device
CN202777392U (en) * 2012-09-18 2013-03-13 汪树峰 Thoracic close drainage connecting pipe
CN203525117U (en) * 2013-10-25 2014-04-09 江苏省人民医院 Support catheter
CN105597167A (en) * 2016-02-04 2016-05-25 李幼生 Peritoneal drainage structure with flushing function
CN206630999U (en) * 2016-08-16 2017-11-14 华中科技大学同济医学院附属协和医院 Flushing liquor can external drainage double set nose catheters

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