CN204563221U - A kind of nonmagnetic charging and discharging valve and the nonmagnetic endotracheal tube based on this valve - Google Patents
A kind of nonmagnetic charging and discharging valve and the nonmagnetic endotracheal tube based on this valve Download PDFInfo
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- CN204563221U CN204563221U CN201520228267.6U CN201520228267U CN204563221U CN 204563221 U CN204563221 U CN 204563221U CN 201520228267 U CN201520228267 U CN 201520228267U CN 204563221 U CN204563221 U CN 204563221U
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- silica gel
- nonmagnetic
- valve
- valve body
- gel spring
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Abstract
This utility model provides a kind of nonmagnetic charging and discharging valve and the nonmagnetic endotracheal tube based on this valve, nonmagnetic charging and discharging valve is made up of valve body and the valve seat be fixed in valve body and return silica gel spring, the inwall of valve body is provided with inclined-plane, return silica gel spring is provided with oblique shoulder, all forms space except tiltedly takeing between the return silica gel spring of outer remainder and the inwall of valve body; When applying without external force, valve seat extruding return silica gel spring makes tiltedly shoulder and inclined-plane close contact form to seal; When needs inflation/deflation, make tiltedly to form space between shoulder and inclined-plane by extruding return silica gel spring, thus make gas channel through.Inflation check valve in endotracheal tube is replaced with nonmagnetic charging and discharging valve and is nonmagnetic endotracheal tube.This utility model solves the magnetic problem of existing inflation check valve, and patient's portability is nonmagnetic, and endotracheal tube directly carries out magnetic resonance examination, the situation such as there will not be patient's personal safety hidden danger and nuclear magnetic resonance not good.
Description
Technical field
This utility model belongs to medical instruments field, is specifically related to a kind of nonmagnetic charging and discharging valve and the nonmagnetic endotracheal tube based on this valve.
Background technology
At present, general endotracheal tube is mainly made up of main pipe, fixation balloon, inflation connection tube, instruction sacculus, inflation check valve and joint.With when inflating to inflation check valve, gas by instruction sacculus and inflation connection tube, finally arrives fixation balloon successively.Fixation balloon plays a part endotracheal tube to be fixed in trachea.But all containing metal spring in the inflation check valve on the endotracheal tube generally used both at home and abroad, metal spring has magnetic.And patient can not carry magnetic object when carrying out magnetic resonance examination.If patient is with it with endotracheal tube, and when needing to carry out magnetic resonance examination, the often interim tube drawing or cut inflation check valve in order to magnetic resonance examination, so just the personal safety of patient is caused a hidden trouble, if and do not remove magnetic inflation check valve and directly carry out magnetic resonance examination, then directly can affect imaging effect, the imaging effect particularly during wardrobe neck and chest magnetic resonance examination, cause check result inaccurate.
Utility model content
The purpose of this utility model is to provide a kind of nonmagnetic charging and discharging valve and the nonmagnetic endotracheal tube based on this valve, can be directly used in magnetic resonance examination, without personal potential safety hazard and the problem affecting imaging effect.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of nonmagnetic charging and discharging valve, comprise the valve body of rigid plastics material, valve body offers through hole along its length, the middle part of the inwall of valve body is provided with inclined-plane, and the front end size of valve body and the QI KOU size of inflation/deflation equipment adapt; Be provided with the valve seat of rigid plastics material in the afterbody of valve body, valve seat is provided with through air-vent; Can carry out elastically-deformable return silica gel spring is fixed in valve body by valve seat, and the middle part of return silica gel spring is provided with oblique shoulder, and all forms space between remainder on return silica gel spring except oblique shoulder and the inwall of valve body; Under the state applied without external force, valve seat extruding return silica gel spring, now tiltedly shoulder and inclined-plane close contact form hermetically-sealed construction; Under inflation/deflation state, the QI KOU of inflation/deflation equipment stretches into valve body forward ends thereof return silica gel spring, now tiltedly forms space between shoulder and inclined-plane.
Described valve seat is made up of snap ring and some gripper shoes, and snap ring is fixed on the inwall of valve body, and one end of all gripper shoes is fixed on snap ring, and the other end is intersected in the circle centre position of snap ring, forms air-vent between gripper shoe and snap ring.
The bottom of described return silica gel spring is offered porose.
Described gripper shoe is provided with step surface, and the bottom of return silica gel spring is stuck on step surface.
The front end of return silica gel spring offers groove, and the front end of return silica gel spring is positioned at the front end of valve body.
The inwall of described valve body offers draw-in groove, and valve seat is stuck in draw-in groove.
The inwall of described valve body is provided with equably some first strip projected parts, and the length direction of the first strip projected parts is identical with the length direction of valve body.
The outer wall of described return silica gel spring is provided with some second strip projected parts equably, and the length direction of the second strip projected parts is identical with the length direction of return silica gel spring.
The cross section of described valve body is annular, and the cross section of return silica gel spring is circular or annular.
A kind of nonmagnetic endotracheal tube based on described nonmagnetic charging and discharging valve, comprise main pipe, the top of main pipe is provided with joint, the bottom of main pipe is provided with fixation balloon, fixation balloon is connected with instruction sacculus by inflation connection tube, and instruction sacculus is provided with for the nonmagnetic charging and discharging valve of fixation balloon inflation/deflation.
Relative to prior art, the beneficial effects of the utility model are:
The nonmagnetic charging and discharging valve that this utility model provides, utilization can carry out elastically-deformable return silica gel spring to replace existing metal spring, when not by external force, return silica gel spring is under the extruding of valve seat, its oblique shoulder is formed with the inclined-plane on valve interior wall and seals, block whole gas channel, stop airflow; When needs carry out inflation/deflation, only need to apply external force on return silica gel spring, make to form space between the oblique shoulder of return silica gel spring and the inclined-plane of valve body, the whole gas channel of conducting, inflation/deflation can be carried out easily, after external force is cancelled, return silica gel spring restores to the original state, and continues to realize sealing effectiveness.The nonmagnetic charging and discharging valve that this utility model provides well solves the magnetic problem of band caused owing to using metal spring in existing inflation check valve, nonmagnetic charging and discharging valve is replaced existing inflation check valve to be installed to after on endotracheal tube, patient's portability endotracheal tube directly carries out magnetic resonance examination, the phenomenon such as there will not be patient's personal safety hidden danger and nuclear magnetic resonance not good, it also avoid as carrying out magnetic resonance examination and interim tube drawing or cutting the risk that inflation check valve causes.
Further, in the nonmagnetic charging and discharging valve that this utility model provides, the snap ring on valve seat can be stuck in the draw-in groove on valve interior wall, thus valve seat is fixed in valve body easily; Form air-vent between the gripper shoe of valve seat and snap ring, air-flow can be passed through from valve seat; The bottom perforate of return silica gel spring, being convenient to it is on the one hand stuck on the step surface of gripper shoe, be conducive to return silica gel spring fixing in valve body, conveniently being more beneficial to return silica gel spring carries out deformation when being subject to external force for another, makes gas channel comparatively easily through; Groove is offered in the front end of return silica gel spring, directly can withstand on force in groove with the cuspidated article of band, thus make return silica gel spring deformation, open gas passage; The second strip projected parts on the first strip projected parts on valve interior wall and return silica gel spring outer wall is all can form enough spaces in order to ensure between return silica gel spring and valve interior wall, also ensure to have space that air-flow is passed through therebetween when return silica gel spring deformation, and pass through the size and the quantity that change the second strip projected parts on return silica gel spring outer wall, the effect regulating return silica gel camber of spring complexity can also be played.
The nonmagnetic endotracheal tube that this utility model provides, the above-mentioned nonmagnetic charging and discharging valve of existing inflation check valve is replaced, solve the magnetic problem of inflation check valve, patient's portability is nonmagnetic, and endotracheal tube directly carries out magnetic resonance examination, the phenomenon such as there will not be patient's personal safety hidden danger and nuclear magnetic resonance not good, it also avoid as carrying out magnetic resonance examination and interim tube drawing or cutting the risk that inflation check valve causes.
Accompanying drawing explanation
The structural representation of the nonmagnetic charging and discharging valve that Fig. 1 provides for this utility model;
Fig. 2 is the structural representation in the vertical section of valve body;
Fig. 3 is the structural representation of return silica gel spring;
Fig. 4 is the structural representation of valve seat, and wherein (a) is front view, and (b) is the side view of (a);
The structural representation of the nonmagnetic endotracheal tube that Fig. 5 provides for this utility model;
Wherein: 1 be valve body, 2 be return silica gel spring, 3 be valve seat, 4 be inclined-plane, 5 be groove for draw-in groove, 6 is the first strip projected parts, 7 for tiltedly shoulder, 8 is the second strip projected parts, 9,10 be snap ring, 11 be gripper shoe, 12 be air-vent, 13 be instruction sacculus, 14 be inflation connection tube, 15 to take pipe, 17 as the leading factor for fixation balloon, 16 be joint, 18 be through hole, 19 be hole, 20 be step surface.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further details.
See Fig. 1 to Fig. 4, the nonmagnetic charging and discharging valve that this utility model provides, the valve seat 3 of the valve body 1 comprising rigid plastics material and the rigid plastics material being positioned at valve body 1 and elastically-deformable return silica gel spring 2 can be carried out.Valve body 1 offers through hole 18 along its length, and valve seat 3 and return silica gel spring 2 are arranged in through hole 18.The cross section of valve body 1 is annular, the middle part of the inwall of valve body 1 is provided with inclined-plane 4, the inwall of valve body 1 is also provided with equably some first strip projected parts 6, and the length direction of the first strip projected parts 6 is identical with the length direction of valve body 1, the inwall of valve body 1 afterbody offers draw-in groove 5, and the front end size of valve body 1 and the QI KOU size of inflation/deflation equipment adapt.Valve seat 3 is made up of snap ring 10 and some gripper shoes 11, snap ring 10 is stuck on draw-in groove 5, and one end of all gripper shoes 11 is fixed on snap ring 10, and the other end is intersected in the circle centre position of snap ring 10, gripper shoe 11 is provided with step surface 20, forms through air-vent 12 between gripper shoe 11 and snap ring 10.Return silica gel spring 2 is fixed in valve body 1 by valve seat 3, the cross section of return silica gel spring 2 is circular or annular, the bottom of return silica gel spring 2 is offered porose 19 and is stuck on step surface 20, the front end of return silica gel spring 2 offers groove 9, and the front end of return silica gel spring 2 is positioned at the front end of valve body 1, the outer wall of return silica gel spring 2 is provided with equably some second strip projected parts 8, and the length direction of the second strip projected parts 8 is identical with the length direction of return silica gel spring 2, the middle part of return silica gel spring 2 is provided with tiltedly shoulder 7, and all form gap between remainder on return silica gel spring 2 except oblique shoulder 7 and the inwall of valve body 1, under the state applied without external force, valve seat 3 extrudes return silica gel spring 2, now tiltedly takes on 7 and forms hermetically-sealed construction with inclined-plane 4 close contact, under inflation/deflation state, the QI KOU of inflation/deflation equipment stretches into valve body 1 forward ends thereof return silica gel spring 2, now tiltedly takes between 7 and inclined-plane 4 and forms gap, thus form through gas channel.
See Fig. 5, the nonmagnetic endotracheal tube that this utility model provides, comprise main pipe 16, the top of main pipe 16 is provided with joint 17, the bottom of main pipe 16 is provided with fixation balloon 15, fixation balloon 15 is connected with instruction sacculus 13 by inflation connection tube 14, and instruction sacculus 13 is provided with for the above-mentioned nonmagnetic charging and discharging valve of fixation balloon 15 inflation/deflation.
Use in this utility model silica gel can elasticity carry out alternative metals spring can elasticity, produce the nonmagnetic charging and discharging valve without metal, the elasticity of nonmagnetic charging and discharging valve, gas tightness and economy are suitable with the magnetic one-way valve containing metal spring.The nonmagnetic endotracheal tube that this utility model provides uses above-mentioned nonmagnetic charging and discharging valve to replace the existing magnetic one-way valve containing metal spring.The use of nonmagnetic charging and discharging valve makes in whole nonmagnetic endotracheal tube not containing magnetic bodies, therefore the nonmagnetic endotracheal tube that this utility model provides can be directly used in magnetic resonance examination, without endotracheal tube patient personal safety hidden danger and the phenomenon such as nuclear magnetic resonance is not good, it also avoid as carrying out the interim tube drawing of magnetic resonance examination or cutting the risk that inflation check valve causes.
The operation principle of the nonmagnetic charging and discharging valve that this utility model provides is: without under external force condition, return silica gel spring 2 is extruded by valve seat 3, make the oblique shoulder 7 of return silica gel spring 2 be squeezed on the inclined-plane 4 of valve body 1 inwall closely, form sealing, leak gas after preventing from inflating; When external force extrudes from the front end of return silica gel spring 2 it, the oblique shoulder 7 of return silica gel spring 2 is separated gradually with the inclined-plane 4 of valve body 1, form space, due to valve seat 3 having air-vent 12, and be all formed with space between remainder on return silica gel spring 2 and the inwall of valve body 1, therefore just define through gas channel, gas can flow through from this gas channel, two-way circulate, realize inflation/deflation operation.
The nonmagnetic endotracheal tube that this utility model provides in use, main pipe 16 is inserted in the trachea of patient, the QI KOU of inflation/deflation equipment be inserted in the front end of valve body 1 and extrude return silica gel spring 2 and form gas channel, now inflate in fixation balloon 15, main pipe 16 is made to be fixed in trachea, the QI KOU of inflation/deflation equipment is extracted after inflation, return silica gel spring 2 recovers the sealing between valve body 1, prevent gas leakage, make when needs take out main pipe 16, the QI KOU of inflation/deflation equipment be inserted in the front end of valve body 1 and extrude return silica gel spring 2 and form gas channel, now extract the gas in fixation balloon 15 out, just main pipe 16 can be taken out.Owing to not containing magnetic bodies in whole nonmagnetic endotracheal tube, therefore the nonmagnetic endotracheal tube that this utility model provides can be directly used in magnetic resonance examination, without endotracheal tube patient personal safety hidden danger and the phenomenon such as nuclear magnetic resonance is not good, it also avoid as carrying out the interim tube drawing of magnetic resonance examination or cutting the risk that inflation check valve causes.
In addition, existing such as tracheostomy cannulas etc. also can the nonmagnetic charging and discharging valve that provides of alternative costs utility model use with the magnetic one-way valve containing metal spring in the medical supplies of the intervention human body of fixation balloon, thus enable the patient with these medical supplies carry out magnetic resonance examination easily.
Above-mentioned particular content in conjunction with the accompanying drawings just schematically; not form the restriction to this utility model protection domain; belonging to the nonmagnetic charging and discharging valve that provides at this utility model of the research worker in field and nonmagnetic endotracheal tube basis on, do not need to pay creative work and the various amendment made or distortion still in protection domain of the present utility model.
Claims (10)
1. a nonmagnetic charging and discharging valve, it is characterized in that: the valve body (1) comprising rigid plastics material, valve body (1) offers through hole (18) along its length, the middle part of the inwall of valve body (1) is provided with inclined-plane (4), and the front end size of valve body (1) and the QI KOU size of inflation/deflation equipment adapt; Be provided with the valve seat (3) of rigid plastics material in the afterbody of valve body (1), valve seat (3) is provided with through air-vent (12); Can carry out elastically-deformable return silica gel spring (2) is fixed in valve body (1) by valve seat (3), the middle part of return silica gel spring (2) is provided with oblique shoulder (7), and return silica gel spring (2) above all forms space except between the remainder tiltedly takeed on except (7) and the inwall of valve body (1); Under the state applied without external force, valve seat (3) extruding return silica gel spring (2), now tiltedly takes on (7) and forms hermetically-sealed construction with inclined-plane (4) close contact; Under inflation/deflation state, the QI KOU of inflation/deflation equipment stretches into valve body (1) forward ends thereof return silica gel spring (2), now tiltedly takes between (7) and inclined-plane (4) and forms space.
2. nonmagnetic charging and discharging valve according to claim 1, it is characterized in that: described valve seat (3) is made up of snap ring (10) and some gripper shoes (11), snap ring (10) is fixed on the inwall of valve body (1), one end of all gripper shoes (11) is fixed on snap ring (10), the other end is intersected in the circle centre position of snap ring (10), forms air-vent (12) between gripper shoe (11) and snap ring (10).
3. nonmagnetic charging and discharging valve according to claim 2, is characterized in that: the bottom of described return silica gel spring (2) is offered porose (19).
4. nonmagnetic charging and discharging valve according to claim 3, is characterized in that: described gripper shoe (11) is provided with step surface (20), and the bottom of return silica gel spring (2) is stuck on step surface (20).
5. nonmagnetic charging and discharging valve according to claim 1, it is characterized in that: the front end of return silica gel spring (2) offers groove (9), and the front end of return silica gel spring (2) is positioned at the front end of valve body (1).
6. nonmagnetic charging and discharging valve according to claim 1, is characterized in that: the inwall of described valve body (1) offers draw-in groove (5), and valve seat (3) is stuck in draw-in groove (5).
7. nonmagnetic charging and discharging valve according to claim 1, it is characterized in that: the inwall of described valve body (1) is provided with equably some first strip projected parts (6), and the length direction of the first strip projected parts (6) is identical with the length direction of valve body (1).
8. nonmagnetic charging and discharging valve according to claim 1, it is characterized in that: the outer wall of described return silica gel spring (2) is provided with some second strip projected parts (8) equably, and the length direction of the second strip projected parts (8) is identical with the length direction of return silica gel spring (2).
9. nonmagnetic charging and discharging valve according to claim 1, is characterized in that: the cross section of described valve body (1) is annular, and the cross section of return silica gel spring (2) is circular or annular.
10. the nonmagnetic endotracheal tube based on the nonmagnetic charging and discharging valve in claim 1-9 described in any one, it is characterized in that: comprise main pipe (16), the top of main pipe (16) is provided with joint (17), the bottom of main pipe (16) is provided with fixation balloon (15), fixation balloon (15) is connected with instruction sacculus (13) by inflation connection tube (14), and instruction sacculus (13) is provided with for the nonmagnetic charging and discharging valve of fixation balloon (15) inflation/deflation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520228267.6U CN204563221U (en) | 2015-04-15 | 2015-04-15 | A kind of nonmagnetic charging and discharging valve and the nonmagnetic endotracheal tube based on this valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520228267.6U CN204563221U (en) | 2015-04-15 | 2015-04-15 | A kind of nonmagnetic charging and discharging valve and the nonmagnetic endotracheal tube based on this valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204563221U true CN204563221U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520228267.6U Expired - Fee Related CN204563221U (en) | 2015-04-15 | 2015-04-15 | A kind of nonmagnetic charging and discharging valve and the nonmagnetic endotracheal tube based on this valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204563221U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017032963A1 (en) * | 2015-08-26 | 2017-03-02 | Smiths Medical International Limited | Valves and tubes including valves |
| CN107013689A (en) * | 2017-03-16 | 2017-08-04 | 赵启 | Diamagnetic valve |
-
2015
- 2015-04-15 CN CN201520228267.6U patent/CN204563221U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017032963A1 (en) * | 2015-08-26 | 2017-03-02 | Smiths Medical International Limited | Valves and tubes including valves |
| CN107013689A (en) * | 2017-03-16 | 2017-08-04 | 赵启 | Diamagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20170415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |