CN110152170A - A kind of nasointestinal tube - Google Patents
A kind of nasointestinal tube Download PDFInfo
- Publication number
- CN110152170A CN110152170A CN201910348613.7A CN201910348613A CN110152170A CN 110152170 A CN110152170 A CN 110152170A CN 201910348613 A CN201910348613 A CN 201910348613A CN 110152170 A CN110152170 A CN 110152170A
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- China
- Prior art keywords
- channel
- conduit
- imbibition
- rigid body
- protrusion
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- 238000005213 imbibition Methods 0.000 claims abstract description 76
- 229920001971 elastomer Polymers 0.000 claims abstract description 31
- 239000000806 elastomer Substances 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims description 40
- 239000011148 porous material Substances 0.000 claims description 13
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 19
- 238000000034 method Methods 0.000 description 10
- 230000002496 gastric effect Effects 0.000 description 6
- 210000004877 mucosa Anatomy 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 241000521257 Hydrops Species 0.000 description 5
- 206010030113 Oedema Diseases 0.000 description 5
- 210000002784 stomach Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 210000000936 intestine Anatomy 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 208000003243 intestinal obstruction Diseases 0.000 description 3
- 210000001835 viscera Anatomy 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000968 intestinal effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 210000004916 vomit Anatomy 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
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
-
- 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
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0054—Catheters; Hollow probes characterised by structural features with regions for increasing flexibility
-
- 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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/008—Strength or flexibility characteristics of the catheter tip
-
- 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
- A61M2025/0063—Catheters; Hollow probes characterised by structural features having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention belongs to the field of medical instrument technology, and in particular to a kind of nasointestinal tube.For the deficiency of the existing easy nasointestinal tube assembly difficulty of push, the present invention adopts the following technical scheme: a kind of nasointestinal tube, it include: a conduit, a rigid body, an elastomer, the elastomer is set to the catheter proximal end, the elastomer is located at outside the rigid body, the conduit is connect with the elastomeric seal, the rigid body has fairshaped front end, the front end extends to form protrusion to the back-end, the protrusion is inserted into the imbibition channel, and the protrusion and the imbibition channel are tightly connected.The beneficial effects of the present invention are as follows: its rigid body rear end has protrusion, protrusion is inserted into the imbibition channel of conduit and is sealed, and the assembly between rigid body and conduit is easy；The setting of rigid body protrusion increases the rigidity of rigid body and conduit connection, and the deformation such as bending of the two junction, conduit in conduit progradation can be effectively prevented and promote more smooth.
Description
Technical field
The invention belongs to the field of medical instrument technology, and in particular to a kind of nasointestinal tube.
Background technique
Intestinal lumen contents caused by a variety of causes pass through obstacle, referred to as intestinal obstruction.Intestinal obstruction is clinical common urgency
Disease, the state of an illness is complicated and changeable, and main clinical manifestation has four big symptoms: pain vomits, is swollen, closing.Liquid in enteron aisle is sucked out, abdomen can be mitigated
It is swollen, intestines cavity pressure is reduced, and then the bacterium in enteric cavity and toxin can be reduced, improves intestinal wall blood circulation, be conducive to improvement office
Portion's lesion and systemic conditions are one of the important methods for treating intestinal obstruction.Liquid in enteron aisle is sucked out, usually passes through nasointestinal tube reality
It is existing.
Authorization Notice No. discloses a kind of nasointestinal tube for the Chinese invention patent of 205729960 U of CN, including to be inserted into
The conduit of stomach and intestine, the setting of catheter proximal end top have the metallic object of certain rigidity, and the shape of metallic object is streamlined, in metallic object
Outside is provide with one layer of flexible membrane with certain elasticity, and metallic object is made of the material that can generate induction to magnetic field.The invention is public
The nasointestinal tube opened, metal shape is streamlined and metal has rigidity to be not easy bending, streamlined to reduce the resistance pushed,
One layer of flexible membrane of metallic object outer cladding, soft surface, thus when push conduit moves ahead, while catheter proximal end has certain degree of hardness
There is certain elasticity, not easy damaged gastrointestinal mucosa；Drive conduit mobile using magnetic field and guide wire, so that moving process is more
It is smooth, quick.But connected between program conduit and metallic object by end face, it is high molecular material manufacture, bonding in view of conduit
It is not easy, assembly difficulty, and connects unstable；In addition, guide wire is contacted with metallic object end face, and no fixed supporting point, similar joint,
The rigidity for influencing nasointestinal tube entirety, is not easy to push.
In addition, existing intestines nasointestinal tube, lumen quantity is different, most commonly single-chamber, also there is two chambers or more；But each chamber function
It can be mainly used for imbibition, due in imbibition process, so that there are negative pressure, enteron aisle and other intracorporal institutional frameworks to be easy for enteral
Suction inlet and aperture are blocked, imbibition effect is poor, needs to operate repeatedly, or even be also possible to inhale blood-breaking pipe or damage internal organs, and then can give
Patient brings discomfort, while causing the inconvenience of operation.
Summary of the invention
The present invention provides a kind of nasointestinal tube for the deficiency of the existing easy nasointestinal tube assembly difficulty of push, is guaranteeing to push away
Assembly difficulty is reduced under the premise of sending readily.Further, when enteral hydrops is sucked out, it can be ensured that enteral pressure balance is kept away
Exempt from negative pressure and blocking suction inlet and damage internal organs are adsorbed to gastrointestinal mucosa.
To achieve the above object, the present invention adopts the following technical scheme: a kind of nasointestinal tube, the nasointestinal tube include:
One conduit, the conduit have flexibility, and formation one is used for imbibition channel and a gas from enteral imbibition in the conduit
Liquid channel, the imbibition channel and gas-liquid channel are mutually isolated, and there is the imbibition Channel front end side wall at least one imbibition to enter
Mouthful；
One rigid body, the rigid body are set to the catheter proximal end；
One elastomer, the elastomer are set to the catheter proximal end, and the elastomer is located at outside the rigid body, the conduit with
The elastomeric seal connection has gap and forms gas-liquid chamber, the gas-liquid between the rigid body and the elastomer
Chamber is connected with the gas-liquid channel；
The rigid body has fairshaped front end, and the front end extends to form protrusion to the back-end, and institute is inserted into the protrusion
It states in imbibition channel, the protrusion and the imbibition channel are tightly connected.
Nasointestinal tube of the invention, rigid body rear end have protrusion, and protrusion is inserted into the imbibition channel of conduit and is sealed, just
Property body and conduit between assembly be easy；Its rigid body has fairshaped front end, and is externally provided with elastomer in rigid body, thus
When push conduit moves ahead, catheter proximal end has certain elasticity while having certain degree of hardness, not easy damaged gastrointestinal mucosa；Rigid body
Between elastomer formed gas-liquid chamber, when push catheter procedure in meet obstructions when, can by gas-liquid chamber inflation or
Filling liquid makes the stretching, extension or diminution of nasointestinal tube front end Development pattern, is expanded repeatedly to resistance position, until resistance disappears
It removes；The setting of rigid body protrusion increases the rigidity of rigid body and conduit connection, can be effectively prevented in conduit progradation
The deformation such as bending of the two junction, conduit promote more smooth.As an improvement, the rigid body protrusion and the imbibition channel
Anti-rotation positioning.Anti-rotation positioning positioning between the two can be designed realization by pair cross-section shape, and the section of protrusion and imbibition are logical
The section in road can be designed to the shapes such as semicircle, ellipse, compared to shapes such as triangle, rectangles, without corner angle.
As an improvement, the rigid body protrusion and imbibition channel anti-rotation position；The front end (21) of the rigid body
It is adapted to the elastomer shape.
As an improvement, protrusion rear end end have jack, the jack depth be less than protrusion size, the protrusion with
Imbibition channel close-fitting.Usually rigidity body by integral forming selects suitable hardness to rigid body so that its front end due to size compared with
It is big and there is required rigidity, and its protrusion is since size is smaller and there is jack to form hollow out and can be compressed, thus
Rigid body insertion is relatively easy to during imbibition channel.Jack depth is less than protrusion size, i.e. protrusion only has by back-end location
Have a jack, protrusion close to front position be still it is solid, thereby may be ensured that protrusion and imbibition interchannel close-fitting.
As an improvement, being equipped with the supporter that can be extracted in the imbibition channel, the supporter is slim-lined construction, the branch
Support body has rigidity and can be bent, and the supporter front end is inserted into the jack.Supporter front end is inserted into the jack,
Compared to supporter contradict rigid body rear end face, between supporter and rigid body combine it is stronger, conduit can be effectively prevented and push away
Promote more smooth into the deformation such as bending of the two junction, conduit in the process.
Preferably, the supporter is metal material, the supporter rear end connects one handle.
Preferably, the rigid body is metal material, magnetic field is set on stomach wall, is produced from the magnetic field on rigid body and stomach wall
Raw magnetic attraction, rigid body are moved with the movement in stomach wall magnetic field, and rigid body is mobile accurate.
As an improvement, having notch at the rear end face of the rigid body front end, the notch, which is formed, is connected to the gas
The channel in liquid channel and the gas-liquid chamber.It processes notch when rigid body by integral forming to be more easier, without in conduit
On individually process notch.In other schemes, notch can also be processed on conduit.
As an improvement, the conduit also has pressure channel, the pressure channel inner end is connected with the imbibition channel,
The pressure channel outer end is connected with the external world.The pressure channel communicated simultaneously with extraneous and imbibition channel is set, imbibition is passed through
When enteral hydrops is extracted in channel, due to the effect of outside pressure such as atmospheric pressure, enteral hydrops, which is drawn, to be easy, and conduit is not easy to adsorb
Gastrointestinal mucosa.Pressure channel can also be connected to other pressure sources such as heated air source etc..
As an improvement, the pressure channel front end side wall has an intercommunicating pore, the intercommunicating pore be connected to the pressure channel and
The imbibition channel.Intercommunicating pore compares rigid body protrusion closer to rear end.Intercommunicating pore can be one or more.
As an improvement, the intercommunicating pore is located further forward compared to the imbibition entrance of imbibition channel side wall, so that reducing blocking may.
As an improvement, the pressure channel forward end closing.Pressure channel forward end production when directly closing compared with
It is good.It, can also be by rigid body and conduit end face seal in other schemes.
The beneficial effect of nasointestinal tube of the invention has: its rigid body rear end has protrusion, and the imbibition that conduit is inserted into protrusion is logical
It in road and seals, the assembly between rigid body and conduit is easy；The setting of rigid body protrusion, increases rigid body and conduit connection
Rigidity, deformation, the conduits such as bending of junction both can be effectively prevented in conduit progradation and promote more smooth.
Detailed description of the invention
Fig. 1 is the main view of the nasointestinal tube of the embodiment of the present invention one.
Fig. 2 is the stereogram exploded view of the nasointestinal tube of the embodiment of the present invention one.
Fig. 3 is the cross-sectional view at the gas-liquid channel of the nasointestinal tube of the embodiment of the present invention one.
Fig. 4 is the cross-sectional view at the pressure channel of the nasointestinal tube of the embodiment of the present invention one.
Fig. 5 is the structural schematic diagram of the conduit of the nasointestinal tube of the embodiment of the present invention one.
Fig. 6 is the structural schematic diagram of the rigid body of the nasointestinal tube of the embodiment of the present invention one.
In figure, 1, conduit, 11, imbibition channel, 12, gas-liquid channel, 13, imbibition entrance, 14, pressure channel, 15, connection
Hole；
2, rigid body, 21, front end, 211, notch, 22, protrusion, 221, jack；
3, elastomer；
4, supporter；
C, gas-liquid chamber.
Specific embodiment
Below with reference to the attached drawing of the invention embodiment, the technical solution of the invention embodiment is explained and
Illustrate, but following embodiments are only the preferred embodiment of the invention, and not all.Based on the implementation example in the implementation mode,
Those skilled in the art's other embodiments obtained without making creative work, belong to the invention
Protection scope.
Referring to Fig. 1 to Fig. 6, a kind of nasointestinal tube of the invention, the nasointestinal tube includes:
One conduit, the conduit have flexibility, and formation one is used for imbibition channel and a gas from enteral imbibition in the conduit
Liquid channel, the imbibition channel and gas-liquid channel are mutually isolated, and there is the imbibition Channel front end side wall at least one imbibition to enter
Mouthful；
One rigid body, the rigid body are set to the catheter proximal end；
One elastomer, the elastomer are set to the catheter proximal end, and the elastomer is located at outside the rigid body, the conduit with
The elastomeric seal connection has gap and forms gas-liquid chamber, the gas-liquid between the rigid body and the elastomer
Chamber is connected with the gas-liquid channel；
The rigid body has fairshaped front end, and the front end extends to form protrusion to the back-end, and institute is inserted into the protrusion
It states in imbibition channel, the protrusion and the imbibition channel are tightly connected.
Nasointestinal tube of the invention, rigid body rear end have protrusion, and protrusion is inserted into the imbibition channel of conduit and is sealed, just
Property body and conduit between assembly be easy；Its rigid body has fairshaped front end, and is externally provided with elastomer in rigid body, thus
When push conduit moves ahead, catheter proximal end has certain elasticity while having certain degree of hardness, not easy damaged gastrointestinal mucosa；Rigid body
Between elastomer formed gas-liquid chamber, when push catheter procedure in meet obstructions when, can by gas-liquid chamber inflation or
Filling liquid makes the volume of nasointestinal tube front end increase reduction repeatedly, is expanded repeatedly to resistance position, until resistance is eliminated；Just
Property body protrusion setting, increase the rigidity of rigid body and conduit connection, both can be effectively prevented in conduit progradation
The deformation such as bending of junction, conduit promote more smooth.
Embodiment one
Referring to Fig. 1 to Fig. 6, a kind of nasointestinal tube of the embodiment of the present invention one, the nasointestinal tube includes:
One conduit 1, the conduit 1 have flexibility, formed in the conduit 1 one for from the imbibition channel 11 of enteral imbibition and
One gas-liquid channel 12, the imbibition channel 11 and gas-liquid channel 12 are mutually isolated, and 11 front end side wall of imbibition channel has extremely
A few imbibition entrance 13；
One rigid body 2, the rigid body 2 are set to 1 front end of conduit；
One elastomer 3, the elastomer 3 are set to 1 front end of conduit, and the elastomer 3 is located at outside the rigid body 2, described
Conduit 1 and the elastomer 3 are tightly connected, and are had gap between the rigid body 2 and the elastomer 3 and are formed gas-liquid chamber
C, the gas-liquid cavity C are connected with the gas-liquid channel 12；
The rigid body 2 has fairshaped front end 21, and 21 rear end of front end extends to form protrusion 22, the protrusion
In the 22 insertion imbibition channels 11, the protrusion 22 is tightly connected with the imbibition channel 11.
21 shape adaptation of front end of elastomer 3 and rigid body 2, in unaerated, the two is bonded substantially.Elastomer 3 has
It is flexible, to its inflation or filling liquid, elastomer 3 can be made to expand glomeration, the inflation of approximate balloon.
As an improvement, 2 protrusion 22 of rigid body is positioned with 11 anti-rotation of imbibition channel.Anti-rotation positioning between the two is fixed
Position can be designed realization by pair cross-section shape, and the section of protrusion 22 and the section in imbibition channel 11 can be designed to semicircle
The shapes such as shape, ellipse, compared to shapes such as triangle, rectangles, without corner angle.Specifically in the present embodiment, the section of protrusion 22
Substantially semicircular in shape, protrusion 22 have first arc-shaped edges concentric with conduit 1, the second arc-shaped edges and with the first arc-shaped edges and the
The third arc-shaped edges of two arc-shaped edges smooth transition.
As an improvement, the 22 rear end end of protrusion has jack 221,221 depth of jack is less than 22 size of protrusion,
The protrusion 22 and 11 close-fitting of imbibition channel.Rigid body 2 is integrally formed, and suitable hardness is selected to rigid body 2, so that its front end
Portion 21 has required rigidity since size is larger, and its protrusion 22 is since size is smaller and there is jack 221 to form hollow out
And can be compressed, to be relatively easy to during rigid body 2 is inserted into imbibition channel 11.221 depth of jack is less than protrusion
22 sizes, i.e. protrusion 22 only have a jack 221 by back-end location, protrusion 22 close to front position be still it is solid, so as to protect
Demonstrate,prove close-fitting between protrusion 22 and imbibition channel 11.
As an improvement, being equipped with the supporter 4 that can be extracted in the imbibition channel 11, the supporter 4 is filament, institute
Supporter 4 is stated with rigidity and can be bent, 4 front end of supporter is inserted into the jack 221.The insertion of 4 front end of supporter
In the jack 221, compared to supporter 4 contradict 2 rear end face of rigid body, between supporter 4 and rigid body 2 combine it is stronger,
The deformation such as bending of the two junction, conduit 1 in 1 progradation of conduit can be effectively prevented and promote more smooth.
As an improvement, the supporter 4 is wire, 4 rear end of supporter connects one handle.
As an improvement, having notch 211 at the rear end face of 2 front end 21 of rigid body, the notch 211, which is formed, to be connected
Lead to the channel of the gas-liquid channel 12 and the gas-liquid cavity C.Rigid body 2 processes notch 211 when being integrally formed and is more easier,
Without individually processing notch 211 on conduit 1.In other embodiments, notch can also be processed on conduit 1,
And notch is not set on rigid body 2.
As an improvement, the conduit 1 also has pressure channel 14,14 inner end of pressure channel and the imbibition channel 11
It is connected, 14 outer end of pressure channel is connected with the external world.It is arranged logical with the air pressure that extraneous and imbibition channel 11 communicates simultaneously
Road 14, when extracting enteral hydrops by imbibition channel 11, due to the effect of atmospheric pressure, enteral hydrops, which is drawn, to be easy, and conduit 1
It is not easy to adsorb gastrointestinal mucosa.
As an improvement, 14 front end side wall of pressure channel has intercommunicating pore 15, the intercommunicating pore 15 is connected to the air pressure
Channel 14 and the imbibition channel 11.Intercommunicating pore 15 compares 2 protrusion 22 of rigid body closer to rear end.Intercommunicating pore 15 is set to conduit 1
It is internal rather than end, the processing technology are more mature.
As an improvement, the intercommunicating pore 15 is located further forward compared to the imbibition entrance 13 of 11 side wall of imbibition channel, to reduce stifled
Plug may.Intercommunicating pore 15 can be one or more.
As an improvement, 14 forward end of pressure channel is closed when conduit 1 forms.It, can also in other schemes
Individually to fill in sealing element by rigid body 2 and 1 end face seal of conduit, or after the molding of conduit 1.
In other embodiments, more channels can also be formed in conduit.
The beneficial effect of the nasointestinal tube of the embodiment of the present invention one has: its 2 rear end of rigid body has protrusion 22, and protrusion 22 is inserted into
It in the imbibition channel 11 of conduit 1 and seals, the assembly between rigid body 2 and conduit 1 is easy；The setting of 2 protrusion 22 of rigid body increases
The rigidity of 1 junction of rigid body 2 and conduit both can be effectively prevented in 1 progradation of conduit bending of junction etc. and become
Shape, conduit 1 promote more smooth；Pressure channel 14 equipped with the connection of also imbibition channel 11, effectively can avoid negative pressure to stomach and intestine
Mucosal absorption blocking and damage, imbibition effect is good, avoids the case where inhaling blood-breaking pipe or damaging internal organs generation, so that patient comfort,
It experiences.
The above, the only specific embodiment of the invention, but the protection scope of the invention does not limit to
In this, being familiar with the those skilled in the art should be understood that the invention includes but is not limited to attached drawing and specific embodiment party above
Content described in formula.The modification of any function and structure principle without departing from the invention is intended to be included in claims
Range in.
Claims (10)
1. a kind of nasointestinal tube, the nasointestinal tube include:
One conduit (1), the conduit (1) have flexibility, form one in the conduit (1) and be used for from the imbibition channel of enteral imbibition
(11) and a gas-liquid channel (12), the imbibition channel (11) and gas-liquid channel (12) are mutually isolated, the imbibition channel
(11) front end side wall has at least one imbibition entrance (13)；
One rigid body (2), the rigid body (2) are set to the conduit (1) front end；
One elastomer (3), the elastomer (3) are set to the conduit (1) front end, and the elastomer (3) is located at the rigid body
(2) outside, the conduit (1) and the elastomer (3) are tightly connected, and are had between the rigid body (2) and the elastomer (3)
Gap is simultaneously formed gas-liquid chamber (C), and the gas-liquid chamber (C) is connected with the gas-liquid channel (12)；
It is characterized by: the rigid body (2) has fairshaped front end (21), the front end (21) extends shape to the back-end
At protrusion (22), the protrusion (22) is inserted into the imbibition channel (11), the protrusion (22) and the imbibition channel (11)
It is tightly connected.
2. a kind of nasointestinal tube according to claim 1, it is characterised in that: the protrusion (22) of the rigid body (2) with it is described
The positioning of imbibition channel (11) anti-rotation；The front end (21) of the rigid body (2) and the elastomer (3) shape adaptation.
3. a kind of nasointestinal tube according to claim 1, it is characterised in that: protrusion (22) the rear end end has jack
(221), jack (221) depth is less than protrusion (22) front-rear direction size, the protrusion (22) and the imbibition channel
(11) close-fitting.
4. a kind of nasointestinal tube according to claim 3, it is characterised in that: being equipped in the imbibition channel (11) can extract
Supporter (4), the supporter (4) have rigidity and can be bent, and the jack (221) is inserted into supporter (4) front end
In.
5. a kind of nasointestinal tube according to claim 1, it is characterised in that: the rear end of rigid body (2) front end (21)
Endface has notch (22), and the notch (22), which is formed, is connected to leading to for the gas-liquid channel (12) and the gas-liquid chamber (C)
Road.
6. a kind of nasointestinal tube according to any one of claims 1 to 5, it is characterised in that: the conduit (1) is also logical with air pressure
Road (14), pressure channel (14) inner end are connected with the imbibition channel (11), pressure channel (14) outer end and outer
Boundary is connected.
7. a kind of nasointestinal tube according to claim 6, it is characterised in that: pressure channel (14) front end side wall, which has, to be connected
Through-hole (15), the intercommunicating pore (15) are connected to the pressure channel (14) and the imbibition channel (11).
8. a kind of nasointestinal tube according to claim 7, it is characterised in that: the intercommunicating pore (15) compares imbibition channel (11)
The imbibition entrance (13) of side wall is located further forward.
9. a kind of nasointestinal tube according to claim 7, it is characterised in that: pressure channel (14) forward end is in conduit
(1) it is closed when forming.
10. a kind of nasointestinal tube according to claim 6, it is characterised in that: conduit (1) cross section is circle；It is described
The cross section of gas-liquid channel (12) and the pressure channel (14) is circle；The side of imbibition channel (11) cross section is
Arc-shaped edges；Imbibition channel (11) sectional dimension is greater than the gas-liquid channel (12) and the pressure channel (14).
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| CN201910348613.7A CN110152170B (en) | 2019-04-28 | 2019-04-28 | Nose intestine tube |
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| CN201910348613.7A CN110152170B (en) | 2019-04-28 | 2019-04-28 | Nose intestine tube |
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| CN110152170B CN110152170B (en) | 2024-08-23 |
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| CN111135101A (en) * | 2020-01-10 | 2020-05-12 | 广东省人民医院(广东省医学科学院) | A magnetic positioning nasogastric tube assembly |
| CN114129861A (en) * | 2021-12-30 | 2022-03-04 | 上海瑞呈生物医疗科技有限公司 | Drainage tube is washed in steady voltage |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110152170B (en) | 2024-08-23 |
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