CN105920721A - Nasointestinal tube - Google Patents
Nasointestinal tube Download PDFInfo
- Publication number
- CN105920721A CN105920721A CN201610414076.8A CN201610414076A CN105920721A CN 105920721 A CN105920721 A CN 105920721A CN 201610414076 A CN201610414076 A CN 201610414076A CN 105920721 A CN105920721 A CN 105920721A
- Authority
- CN
- China
- Prior art keywords
- tube
- metallic object
- magnetic field
- nasointestinal
- catheter
- Prior art date
- 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.)
- Pending
Links
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
- 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
- A61M25/0028—Multi-lumen catheters with stationary elements characterized by features relating to at least one lumen located at the proximal part of the catheter, e.g. alterations in lumen shape or valves
-
- 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
- A61M25/003—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves
-
- 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
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
- A61M25/0052—Localized reinforcement, e.g. where only a specific part of the catheter is reinforced, for rapid exchange guidewire port
-
- 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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
-
- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0127—Magnetic means; Magnetic markers
-
- 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
- A61M2025/0037—Multi-lumen catheters with stationary elements characterized by lumina being arranged side-by-side
-
- 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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
- A61M2025/0079—Separate user-activated means, e.g. guidewires, guide tubes, balloon catheters or sheaths, for sealing off an orifice, e.g. a lumen or side holes, of a catheter
Abstract
The invention discloses a nasointestinal tube and belongs to the field of medical equipment. A bag is sealed at the top of the front end of a nasointestinal tube in the prior art. In the intubation process, the bag turns back to increase push resistance, the gastrointestinal mucosa is damaged easily, and the time for a catheter to enter intestines cannot be controlled actively, so that a curative effect is delayed. The nasointestinal tube comprises a catheter for being inserted into the stomach and intestine, the top of the front end of the catheter is provided with a metal body having a certain rigidity, the metal body is in a streamline shape, the outside of the metal body is covered with a layer of flexible film having a certain elasticity, and the metal body is made of a material capable of sensing a magnetic field. The metal body is in the streamline shape, metal has rigidity and is not bent easily, and the streamline shape reduces push resistance; the outside of the metal body is covered with the layer of flexible film, the surface is soft, so that when the catheter is pushed to move forwards, the front end of the catheter has a certain elasticity while having a certain rigidity, and the gastrointestinal mucosa is not damaged easily. The magnetic field and a guiding wire are utilized to drive the catheter to move, so that the moving process is smoother and quicker.
Description
Technical field
The present invention relates to a kind of nasointestinal tube, belong to medical instruments field.
Background technology
The gentle body of hydrops in gastrointestinal tract the most often occurs, or due to illness can not per os diet, just need to be by inserting the catheter in gastrointestinal, accumulating in
Liquids and gases sucking-off in gastrointestinal, or medicine, nutritional solution etc. are inputted in gastrointestinal, it is a kind of safe and simple effective remedy measures.
Traditional method is to use nasogastric tube, but this pipe can only be inserted in gastral cavity, produces little effect, and with the presence of returning the risk of esophagus, so that suction causes by mistake
The serious consequence suffocated.Therefore, how to use easy and simple to handle, not damaged quickly conduit to be sent into enteral in time, become the heat of medical research always
Point, omnifarious conduit also emerges in an endless stream.Notification number CN1530147A Chinese invention patent, represents the leading technology of current various conduit.
But, using during the present invention patent, having following defects that 1, have capsule due to catheter proximal end top envelope, in catheterization procedure, this capsule
Turn back and increase the resistance pushed, easy damaged gastrointestinal mucosa.2, catheter proximal end does not has rigidity, during the power that is hampered at the bottom of return stomach easy to break.3, due to conduit
Entering enteral through stomach, be need to be effective by the creeping effect ability of gastrointestinal, and the gastrointestinal peristalsis function of patient is often low, conduit enters enteral
Time cannot actively control, often limited by the state of an illness and be in passive waiting state so that be delayed curative effect.4, often occur inverse compacted because of patient's intestinal
Dynamic, conduit is turned back when returning to esophagus, during loading thing in gastrointestinal or nutritional solution, has and causes the anxiety suffocated.5, under morbid state, patient
Liquid often muddy band residue in gastrointestinal, the joint of existing catheter tip is all in horn-like, when this joint connects negative pressure utensil, at connecting portion
Having step surface, often there is blocking at this in liquid, causes attraction invalid.For drawbacks described above present in currently available technology, be necessary in fact into
Row research and development, solve defect present in prior art.
Summary of the invention
For the defect of prior art, the present invention provides one can have certain rigidity and non-easy damaged gastrointestinal mucosa, it is possible in time, actively
Control, the nasointestinal tube precisely pushed.
For achieving the above object, the technical scheme is that
A kind of nasointestinal tube, including the conduit in order to insert gastrointestinal, catheter proximal end top arranges the metallic object with certain rigidity, the shape of metallic object
In streamlined, set one layer at metallic object outer mask and there is certain elastic flexible membrane, metallic object and the mutual adhesion of flexible membrane, have space between the two.
Metallic object shape is streamlined and metal has rigidity to be difficult to bending, and the resistance that streamlined reduction pushes, in one layer of flexibility of metallic object outer cladding
Film, soft surface, thus when pushing conduit and moving ahead, catheter proximal end has certain elasticity, not easy damaged gastrointestinal mucosa while having certain degree of hardness.
Further, conduit arranges the first tube chamber, the second tube chamber, and the first tube chamber communicates with space, the second tube chamber and catheter proximal end adjacent metal body
Side channel communicate.
Further, the first tube chamber and the second tube chamber are not connected, and the first tube chamber communicates with the horn-like joint of catheter tip, the second tube chamber with lead
The cone joint of pipe end communicates.The distal opening of horn-like joint is relatively big, and if resistance, can inject by this joint in space or release
Venting body, expands resistance position.Cone joint opening is less, by this joint can draw gastrointestinal inner accumulated liquids and gases or
To stomach enteral feeding medicine and nutritional solution.
Further, the first tube chamber or the second tube chamber are built into a guide wire, on the one hand strengthen the rigidity of conduit, are on the other hand conducive to operation
Person's actively controllable propelling movement conduit.
Further, metallic object is made with the material that magnetic field can produce sensing.
Further, also including that one can produce shifting magnetic field the magnetic field generator driving metallic object to move, magnetic field generator can use existing skill
Art, utilizes permanent magnet or electric magnet to make magnetic field generator.
Further, metallic object is permanent magnet, directly with permanent magnet be fabricated by simply, low cost.
Further, metallic object is the electric magnet with microcontroller chip and micro battery, the electromagnetic force produced according to the draught control electric magnet run into,
Can effectively alleviate the damage to gastrointestinal, it is to avoid the excessive damage causing gastrointestinal of electromagnetic force, electromagnetic force is too small, and conduit cannot move to precalculated position.
Further, magnetic field generator is permanent magnet or the electromagnet with control circuit.Preferably electromagnet, according to the resistance control run into
The electromagnetic force that electromagnet processed produces, it is possible to effectively alleviating the damage to gastrointestinal, it is to avoid the excessive damage causing gastrointestinal of electromagnetic force, electromagnetic force is too small,
Conduit cannot move to precalculated position.
When conduit is inserted into gastral cavity, magnetic field generator produces shifting magnetic field, metallic object and magnetic field mutual induction outside abdominal cavity, and drive metal is moved in magnetic field
Body moves, and then fix the conduit realization being connected with metallic object mobile, and when conduit is pushed to precalculated position, the magnetic field generator outside stomach wall produces
Raw magnetic field is not in change, from the location realizing metallic object and conduit.The position utilizing magnetic field to realize conduit is moved, it is possible to greatly alleviate patient
Misery, reduce damage to gastrointestinal.And the suspension location of nasointestinal tube can be realized so that location is more accurate, and therapeutic effect is more preferable.For making
The movement of conduit is more smooth and easy, and magnetic field generator can act on jointly with guide wire so that conduit and metallic object is more smooth and easy, quickly move
To precalculated position.
Further, flexible membrane is rubber.Rubber good springiness, low cost.
Compared with prior art, the method have the advantages that
The metallic object at catheter proximal end top of the present invention is streamlined, the streamlined resistance reducing propelling movement, during operator pushes conduit, and metal
Body has rigidity the most flexible；Outside cladding flexible membrane, catheter proximal end top has certain elasticity, not easy damaged stomach while having certain rigidity
Intestinal mucosa；Magnetic field on stomach wall produces suction to metallic object, and metallic object is mobile with the movement in magnetic field so that it is more smooth and easy that nasointestinal tube pushes process；
When arriving precalculated position, magnetic field can position the position of conduit；Coniform joint eliminates the step surface between adapter, reduces blocking probability, draws
On the one hand seal wire strengthens the rigidity of conduit, is on the other hand conducive to operator's actively controllable propelling movement conduit.Magnetic field and guide wire is utilized to realize conduit
Accurately, quickly moving, electromagnetic force is adjustable simultaneously, it is possible to greatly alleviate the misery of patient, reduces the damage to gastrointestinal.
Accompanying drawing explanation
Fig. 1 present configuration schematic diagram (does not include magnetic field generator)；
The Section A-A enlarged drawing of Fig. 2 conduit of the present invention；
The section B-B enlarged drawing of Fig. 3 conduit of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is entered one
Step describes in detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
On the contrary, the present invention contain any be defined by the claims the replacement made in the spirit and scope of the present invention, amendment, equivalent method and
Scheme.Further, in order to make the public have a better understanding the present invention, in describing the details of the present invention below, detailed to describe some special
Fixed detail section.The description not having these detail sections for a person skilled in the art can also understand the present invention completely.
Specific embodiment as shown in Figures 1 to 3, a kind of nasointestinal tube, including the conduit in order to insert gastrointestinal, shifting magnetic field can be produced and drive gold
Belong to the magnetic field generator that body moves.Catheter proximal end top arranges the metallic object 1 with certain rigidity, the metallic object material that magnetic field can produce sensing
Making, the shape of described metallic object 1 is streamlined.
Setting one layer at metallic object outer mask and have certain elastic flexible membrane 2, flexible membrane is rubber.Described metallic object and the mutual adhesion of flexible membrane,
There is space 7 between the two.
Described conduit arranges the first tube chamber, the second tube chamber, and described first tube chamber 3 communicates with space 7, described second tube chamber 5 and catheter proximal end phase
The side channel 4 of adjacent metallic object communicates.Described first tube chamber and the second tube chamber are not connected, horn-like joint 9 phase of the first tube chamber 3 and catheter tip
Logical, the second tube chamber 5 communicates with the cone joint 8 of catheter tip.First tube chamber or the second tube chamber are built into a guide wire 6.
Metallic object is permanent magnet, directly with permanent magnet be fabricated by simply, low cost.
Metallic object can also be fabricated by by the electric magnet with microcontroller chip and micro battery, the electricity produced according to the draught control electric magnet run into
Magnetic force, it is possible to effectively alleviate the damage to gastrointestinal, it is to avoid the excessive damage causing gastrointestinal of electromagnetic force, electromagnetic force is too small, and conduit cannot move to pre-
Location is put.
Magnetic field generator can be the electromagnet with control circuit.The electromagnetic force that magnetic field generator produces according to the draught control electromagnet run into,
Can effectively alleviate the damage to gastrointestinal, it is to avoid the excessive damage causing gastrointestinal of electromagnetic force, electromagnetic force is too small, and conduit cannot move to precalculated position.
The operation principle of the present invention: during use, when conduit per nasal is inserted into gastral cavity, magnetic field generator produces magnetic field in stomach wall appropriate section.Conduit
Metallic object 1 and the magnetic field mutual induction at top, while being moved toward pylorus direction in magnetic field, conduit is the most actively moved by operator along magnetic field
Direction precisely pushes.If being hampered during power, injecting or discharging a certain amount of gas through horn-like joint 9, entering space 7 along the first tube chamber 3, allowing
Space 7 between flexible membrane 2 with metallic object 1 separates or is coated with, when making the volume at conduit top and the time of increase and diminish, resistance position is carried out
Repeatedly expand, until resistance eliminates.Continue to push forward conduit to arrive at precalculated position, when predetermined position sent to by conduit, the magnetic outside stomach wall
The magnetic field that field generator produces in change, from realizing the location of metallic object and conduit, thus is not avoided catheter position to move and is suffocated.
When conduit is pushed to precalculated position, extracts guide wire 6 out, in vitro conduit is fixed, coniform joint 8 is connected to corresponding negative pressure
Utensil, the liquid in gastrointestinal through side channel 4 along the second tube chamber 5 sucking-off.
Other embodiments of the present invention, in order to nasointestinal tube the most actively controllable can be sent into enteral by operator, during use, place on patient's stomach wall
Magnetic field generator, wherein the guide wire material that can be adsorbed by magnetic field is made, in order to increase the magnetic field suction to nasointestinal tube so that nasointestinal tube inserts
Process is more smooth and easy.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all made within the spirit and principles in the present invention
Any amendment, equivalent and improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a nasointestinal tube, including the conduit in order to insert gastrointestinal, is characterized in that, catheter proximal end top arranges the metallic object (1) with certain rigidity,
The shape of described metallic object (1) is streamlined, sets one layer at metallic object outer mask and has certain elastic flexible membrane (2), described metallic object with
The mutual adhesion of flexible membrane, has space (7) between the two.
A kind of nasointestinal tube the most according to claim 1, is characterized in that, described conduit arranges the first tube chamber, the second tube chamber, described first pipe
Chamber (3) communicates with space (7), and described second tube chamber (5) communicates with a side channel (4) of catheter proximal end adjacent metal body.
A kind of nasointestinal tube the most according to claim 2, is characterized in that, described first tube chamber and the second tube chamber are not connected, the first tube chamber (3)
Communicating with the horn-like joint (9) of catheter tip, the second tube chamber (5) communicates with the cone joint (8) of catheter tip.
A kind of nasointestinal tube the most according to claim 3, is characterized in that, the first tube chamber or the second tube chamber are built into a guide wire (6).
5. according to the arbitrary described a kind of nasointestinal tube of claim 1-4, it is characterized in that, metallic object is made with the material that magnetic field can produce sensing.
A kind of nasointestinal tube the most according to claim 5, is characterized in that, also include that one can produce shifting magnetic field and drive metallic object to move
Magnetic field generator.
A kind of nasointestinal tube the most according to claim 6, is characterized in that, described metallic object is permanent magnet.
A kind of nasointestinal tube the most according to claim 6, is characterized in that, described metallic object is the electric magnet with microcontroller chip and micro battery.
A kind of nasointestinal tube the most according to claim 6, is characterized in that, described magnetic field generator is permanent magnet or the electricity with control circuit
Magnet.
10. according to the arbitrary described a kind of nasointestinal tube of claim 1-4, it is characterized in that, described flexible membrane is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610414076.8A CN105920721A (en) | 2016-06-13 | 2016-06-13 | Nasointestinal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610414076.8A CN105920721A (en) | 2016-06-13 | 2016-06-13 | Nasointestinal tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105920721A true CN105920721A (en) | 2016-09-07 |
Family
ID=56832975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610414076.8A Pending CN105920721A (en) | 2016-06-13 | 2016-06-13 | Nasointestinal tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105920721A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152170A (en) * | 2019-04-28 | 2019-08-23 | 陈一奇 | A kind of nasointestinal tube |
| CN111166398A (en) * | 2020-02-21 | 2020-05-19 | 西安交通大学 | Positive and negative guide wire magnetic kissing system for coronary artery occlusion intervention |
| CN111248846A (en) * | 2020-01-15 | 2020-06-09 | 吉林大学 | Digestive gastroscope device with auxiliary nursing function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4671287A (en) * | 1983-12-29 | 1987-06-09 | Fiddian Green Richard G | Apparatus and method for sustaining vitality of organs of the gastrointestinal tract |
| US20030154986A1 (en) * | 2002-02-19 | 2003-08-21 | Ibionics, Inc. | Magnetically guided device for insertion through a nasal passageway |
| US20070088326A1 (en) * | 2005-06-22 | 2007-04-19 | Wilson-Cook Medical Inc. | Catheter shaft connector |
| CN205729960U (en) * | 2016-06-13 | 2016-11-30 | 陈一奇 | A kind of nasointestinal tube |
-
2016
- 2016-06-13 CN CN201610414076.8A patent/CN105920721A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4671287A (en) * | 1983-12-29 | 1987-06-09 | Fiddian Green Richard G | Apparatus and method for sustaining vitality of organs of the gastrointestinal tract |
| US20030154986A1 (en) * | 2002-02-19 | 2003-08-21 | Ibionics, Inc. | Magnetically guided device for insertion through a nasal passageway |
| US20070088326A1 (en) * | 2005-06-22 | 2007-04-19 | Wilson-Cook Medical Inc. | Catheter shaft connector |
| CN205729960U (en) * | 2016-06-13 | 2016-11-30 | 陈一奇 | A kind of nasointestinal tube |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152170A (en) * | 2019-04-28 | 2019-08-23 | 陈一奇 | A kind of nasointestinal tube |
| CN111248846A (en) * | 2020-01-15 | 2020-06-09 | 吉林大学 | Digestive gastroscope device with auxiliary nursing function |
| CN111166398A (en) * | 2020-02-21 | 2020-05-19 | 西安交通大学 | Positive and negative guide wire magnetic kissing system for coronary artery occlusion intervention |
| CN111166398B (en) * | 2020-02-21 | 2021-07-06 | 西安交通大学 | Positive and negative guide wire magnetic kissing system for coronary artery occlusion intervention |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160907 |