CN204337459U - A kind of endotracheal tube with Inner guide groove - Google Patents
A kind of endotracheal tube with Inner guide groove Download PDFInfo
- Publication number
- CN204337459U CN204337459U CN201420754191.6U CN201420754191U CN204337459U CN 204337459 U CN204337459 U CN 204337459U CN 201420754191 U CN201420754191 U CN 201420754191U CN 204337459 U CN204337459 U CN 204337459U
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- CN
- China
- Prior art keywords
- catheter body
- inner guide
- guide groove
- respirator
- charge valve
- 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.)
- Expired - Fee Related
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Abstract
This utility model relates to a kind of endotracheal tube with Inner guide groove, and described endotracheal tube is provided with catheter body, Inner guide groove, respirator, charge valve; Described catheter body is hollow tube; Described catheter body comprises laminar flow section and turbulent flow section; Described catheter body inwall is provided with Inner guide groove; Described catheter body rear end is provided with respirator interface; Described respirator interface is entrenched on the outer face of catheter body; Charge valve is connected with in the middle part of described catheter body; Described charge valve is connected with charge valve conduit; Described charge valve conduit is close to catheter body outer wall until air bag; Described charge valve conduit and airbags lead to; Described air bag is positioned on the outer peripheral face of catheter body.Its advantage shows: catheter body inwall is provided with Inner guide groove, after tracheal intubation in long-time respirator assisted ventilation process, greatly reduces the infringement of respirator gas turbulence to air flue, and reduces the incidence rate of respirator energy consumption and patients with hypoxemia.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically, is a kind of endotracheal tube with Inner guide groove.
Background technology
In surgical operation or critical patient first aid procedures, often need tracheal intubation and respirator assisted ventilation to maintain patient effective pulmonary oxygenate, part critical patient even needs long-time tracheal intubation, but traditional trach tubes designs all adopts the medical plastic pipe of inner wall smooth.When air-flow is blown into conduit from endotracheal tube one end by respirator, when laminar air flow flows through solid tube wall border, understand turbulization.
Turbulent flow is the random flow phenomenon of one occurred in fluid and gas, and when flow velocity is very little, fluid layering flows, and does not mix mutually, is called laminar flow; When flow velocity is increased to very large, streamline is no longer clear can distinguish there are many little whirlpools in flow field, and laminar flow is destroyed, and adjacent flow interlayer not only has slip, also has mixing.At this moment fluid does irregular movement, and have the component velocity perpendicular to stream tube axis direction to produce, this motion is called turbulent flow.When fluid makes turbulent flow, resistance large discharge is little, and energy dissipation increases.Experiment proves, the pass of energy dissipation E and speed is △ E=kv
2in formula, k is proportionality coefficient, and the material of its shape, size and pipeline with pipeline is relevant.V in formula is mean flow rate.
Therefore, the high velocity air that respirator produces is by forming turbulent flow after endotracheal tube, not only loss respirator effectively does work, reduce respirator performance, and the gas turbulence entering patient lungs causes long-term injury by patient airway mucosa, especially for the critical patient that there is severe hypoxia mass formed by blood stasis and pulmonary's serious change, often need long period tracheal intubation, this adds the original lung damage of heavy patient, causes body severe depletion of oxygen, causes the consequence being difficult to retrieve.
Summary of the invention
The purpose of this utility model is, provides a kind of and reduces the generation of respirator high velocity air by endotracheal tube backwash, increases respirator performance, prevents gas turbulence to the endotracheal tube of the band Inner guide groove of airway mucus long-term injury.
For achieving the above object, the technical scheme that this utility model is taked is:
With an endotracheal tube for Inner guide groove, described endotracheal tube is provided with catheter body, Inner guide groove, respirator, charge valve; Described catheter body is hollow tube; Described catheter body comprises laminar flow section and turbulent flow section; Described catheter body inwall is provided with Inner guide groove; Described Inner guide groove and catheter body inwall form circular arc guiding gutter; Described Inner guide groove six is divided equally on catheter body inwall; Between described Inner guide groove, arc transition connects; Described catheter body front end is provided with air pipe interface; Described catheter body rear end is provided with respirator interface; Described respirator interface is entrenched on the outer face of catheter body; Described respirator interface comprises annular solid and switching cylinder; Described switching cylinder is connected with catheter body inside; Charge valve is connected with in the middle part of described catheter body; Described charge valve is connected with charge valve conduit; Described charge valve conduit is close to catheter body outer wall until air bag; Described charge valve conduit and airbags lead to; Described air bag is positioned on the outer peripheral face of catheter body.
Air pipe interface end in described catheter body is provided with side opening.
The distance of described turbulent flow section distance respirator is 30 times of catheter body internal diameter.
Described Inner guide slot is in the turbulent flow section inwall of catheter body.
This utility model advantage is:
1, a kind of endotracheal tube with Inner guide groove of the present utility model, catheter body inwall is provided with Inner guide groove, after tracheal intubation in long-time respirator assisted ventilation process, greatly reduce the infringement of respirator gas turbulence to air flue, and reduce the incidence rate of respirator energy consumption and patients with hypoxemia;
2, in catheter body, be provided with side opening assisted ventilation, ensure the smoothness of ventilation;
3, select charge valve to measure pressure, understand the situation of patient in time;
4, in conjunction with fluid mechanics principle, by the trickle transformation of endotracheal tube structure, the effect of clinical treatment can be improved, will larger meaning be had.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of endotracheal tube structural representation with Inner guide groove of the present utility model.
Accompanying drawing 2 is the air pipe interface close-up schematic view in a kind of endotracheal tube with Inner guide groove of the present utility model.
Accompanying drawing 3 is a kind of endotracheal tube coronalplane structural representations with Inner guide groove of the present utility model.
Accompanying drawing 4 is that a kind of endotracheal tube with Inner guide groove of the present utility model loses shape face structural representation.
Detailed description of the invention
Also with reference to accompanying drawing, this utility model is further described below in conjunction with embodiment.
The Reference numeral related in accompanying drawing and ingredient as follows:
1. catheter body 11. respirator interface
12. air pipe interface 13. side openings
14. turbulent flow section 15. laminar flow sections
2. charge valve 21. charge valve conduit
3. air bag 4. Inner guide groove
Embodiment 1
Please refer to Fig. 1, Fig. 1 is a kind of endotracheal tube structural representation with Inner guide groove of the present utility model.Described endotracheal tube is provided with catheter body 1; Described catheter body 1 front end is provided with air pipe interface 12; Described catheter body 1 rear end is provided with respirator interface 11; Described respirator interface 11 is entrenched on the outer face of catheter body 1; Described respirator interface 11 comprises annular solid (not shown) and switching cylinder (not shown); Described switching cylinder is connected with catheter body 1 inside; Charge valve 2 is connected with in the middle part of described catheter body 1; Described charge valve 2 is connected with charge valve conduit 21; Described charge valve conduit 21 is close to catheter body 1 outer wall until air bag 3; Described charge valve conduit 21 is connected with air bag 3; Described air bag 3 is positioned on the outer peripheral face of catheter body 1.
Please refer to Fig. 2, Fig. 2 is the air pipe interface close-up schematic view in a kind of endotracheal tube with Inner guide groove of the present utility model.Described catheter body 1 is hollow tube; Described conduit is originally provided with Inner guide groove 4; Described Inner guide groove 4 six is divided equally on catheter body 1 inwall; Air pipe interface 12 end in described catheter body 1 is also provided with side opening 13.
Please refer to Fig. 3, Fig. 3 is a kind of endotracheal tube coronalplane structural representation with Inner guide groove of the present utility model.Described Inner guide groove 4 forms circular arc guiding gutter with catheter tube 1 inwall; Described Inner guide groove 4 arc transition connect.
Please refer to Fig. 4, Fig. 4 is that a kind of endotracheal tube with Inner guide groove of the present utility model loses shape face structural representation.Described catheter body 1 comprises laminar flow section 15 and turbulent flow section 14; Described Inner guide groove 4 is positioned at turbulent flow section 14 inwall of catheter body 1; Described turbulent flow section 14 is 30 times of catheter body 1 internal diameter apart from the distance of respirator.
It should be noted that: the passage that described catheter body 1 is ventilated for respirator (not shown), described respirator interface 11 connects respirator, described air pipe interface 12 matches with the trachea in human body, described side opening 13 subsidiary conduit body 1 is ventilated, in operation process, when person's windpipe contacts with catheter body 1, because of misoperation, catheter body 1 port and person's windpipe inwall stick together, and affect catheter body 1 normal ventilation, ensure that ventilation is normally carried out by side opening 13, described charge valve 2 utilizes atmospheric pressure principle to extrude and inflates in air bag 3, and charge valve 2 can also measure pressure size simultaneously, described air bag 3 is for the gap between closes ducts and trachea, and fixing endotracheal tube is in tracheal strips position, described respirator provides air-flow, described Inner guide groove 4 is positioned on the inwall of catheter body 1 turbulent flow section 14, when breathing machine ventilation, just start air-flow to flow in the mode of laminar flow in catheter body 1, namely in catheter body 1, in laminar flow section 15, air-flow is laminar flow, according to clinical experience, when air motion distance respirator interface 11 is the 25-40 times of catheter body 1 diameter, the present embodiment preferred air motion distance respirator interface 11 is 30 times of catheter body 1 diameter, air-flow starts to become turbulent flow from laminar flow, namely the turbulent flow section 14 in catheter body 1, Inner guide groove 4 is provided with at turbulent flow section 14 inwall, change the shape of catheter body 1 inwall, increase the contact area of air-flow and catheter body 1, air-flow is flowed in the mode of turbulent flow section 14 laminar flow, prevent gas turbulence from causing long-term injury to patient airway mucosa, avoid the Effective power consuming respirator, reduce respirator performance.
A kind of endotracheal tube using method with Inner guide groove of the present utility model is: first gas trachea place is inserted in one end of the endotracheal tube with Inner guide groove 4, then charge valve 2 is used to inflate to air bag 3, air bag 3 expands outwardly, the gap between closes ducts body 1 and trachea; Finally respirator is reasonably adopted to ventilate according to the concrete condition of patient.
A kind of endotracheal tube with Inner guide groove of the present utility model, catheter body 1 inwall is provided with Inner guide groove 4, after tracheal intubation in long-time respirator assisted ventilation process, greatly reduce the infringement of respirator gas turbulence to air flue, and reduce the incidence rate of respirator energy consumption and patients with hypoxemia; Catheter body 1 is provided with side opening 13 assisted ventilation, ensures the smoothness of ventilation; Select charge valve 2 to measure pressure, understand the situation of patient in time; In conjunction with fluid mechanics principle, by the trickle transformation of endotracheal tube structure, the effect of clinical treatment can be improved, will larger meaning be had.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from this utility model principle; can also make some improvement and supplement, these improve and supplement and also should be considered as protection domain of the present utility model.
Claims (4)
1. the endotracheal tube with Inner guide groove, is characterized in that, described endotracheal tube is provided with catheter body, Inner guide groove, respirator, charge valve; Described catheter body is hollow tube; Described catheter body comprises laminar flow section and turbulent flow section; Described catheter body inwall is provided with Inner guide groove; Described Inner guide groove and catheter body inwall form circular arc guiding gutter; Described Inner guide groove six is divided equally on catheter body inwall; Between described Inner guide groove, arc transition connects; Described catheter body front end is provided with air pipe interface; Described catheter body rear end is provided with respirator interface; Described respirator interface is entrenched on the outer face of catheter body; Described respirator interface comprises annular solid and switching cylinder; Described switching cylinder is connected with catheter body inside; Charge valve is connected with in the middle part of described catheter body; Described charge valve is connected with charge valve conduit; Described charge valve conduit is close to catheter body outer wall until air bag; Described charge valve conduit and airbags lead to; Described air bag is positioned on the outer peripheral face of catheter body.
2. endotracheal tube according to claim 1, is characterized in that, the air pipe interface end in described catheter body is provided with side opening.
3. endotracheal tube according to claim 1, is characterized in that, the distance of described turbulent flow section distance respirator is 30 times of catheter body internal diameter.
4. endotracheal tube according to claim 1, is characterized in that, described Inner guide slot is in the turbulent flow section inwall of catheter body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420754191.6U CN204337459U (en) | 2014-12-04 | 2014-12-04 | A kind of endotracheal tube with Inner guide groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420754191.6U CN204337459U (en) | 2014-12-04 | 2014-12-04 | A kind of endotracheal tube with Inner guide groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204337459U true CN204337459U (en) | 2015-05-20 |
Family
ID=53220766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420754191.6U Expired - Fee Related CN204337459U (en) | 2014-12-04 | 2014-12-04 | A kind of endotracheal tube with Inner guide groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204337459U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874134A (en) * | 2015-05-28 | 2015-09-02 | 苏州美瑞康医疗科技有限公司 | Gas conveyer |
| CN106039525A (en) * | 2016-06-24 | 2016-10-26 | 严灵 | Stomach tube |
| CN108601557A (en) * | 2015-12-21 | 2018-09-28 | 皇家飞利浦有限公司 | Sample room for breathing gas sampling and its manufacturing method |
-
2014
- 2014-12-04 CN CN201420754191.6U patent/CN204337459U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874134A (en) * | 2015-05-28 | 2015-09-02 | 苏州美瑞康医疗科技有限公司 | Gas conveyer |
| CN108601557A (en) * | 2015-12-21 | 2018-09-28 | 皇家飞利浦有限公司 | Sample room for breathing gas sampling and its manufacturing method |
| CN106039525A (en) * | 2016-06-24 | 2016-10-26 | 严灵 | Stomach tube |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20191204 |