CN100381100C - Tracheal catheter capable of monitoring mixed venous oxygen saturation via air passage without trauma - Google Patents
Tracheal catheter capable of monitoring mixed venous oxygen saturation via air passage without trauma Download PDFInfo
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- CN100381100C CN100381100C CNB2004100536424A CN200410053642A CN100381100C CN 100381100 C CN100381100 C CN 100381100C CN B2004100536424 A CNB2004100536424 A CN B2004100536424A CN 200410053642 A CN200410053642 A CN 200410053642A CN 100381100 C CN100381100 C CN 100381100C
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- oxygen saturation
- blood oxygen
- catheter
- double
- probe
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Abstract
The present invention relates to a double-cavity trachea catheter for monitoring the oxygen saturation of blood without wounds through a trachea, which particularly relates to a mixing venous oxygen saturation (SvO2) monitoring device. A main cuff is arranged on the double-cavity trachea catheter, and an auxiliary cuff is arranged on a catheter on the left side. The surfaces of the main cuff and the auxiliary cuff are respectively provided with a blood oxygen saturation probe which is connected with a blood oxygen saturation monitor through a conductor wire which is embedded in the wall of the double-cavity tracheal catheter. The blood oxygen saturation probe and the double-cavity tracheal catheter are together arranged in a trachea. The blood oxygen saturation probe on the surface of the main cuff is faced to an aorta, and the blood oxygen saturation probe on the surface of the auxiliary cuff is faced to a left pulmonary artery. The two probes are respectively used for measuring arterial blood oxygen saturation (SaO2) and mixed venous blood oxygen saturation (SvO2), and signals are transmitted to the blood oxygen saturation monitor through a conductor wire. The blood oxygen saturation probes are directly arranged on the double-cavity tracheal catheter, and the conductor wires are embedded in the wall of the double-cavity tracheal catheter, which has small influence on the catheter diameter sectional area of the double-cavity tracheal catheter. Trachea resistance for ventilation is not increased, and at the same time, extra additional damage brought by monitoring can be avoided.
Description
Technical field:
The present invention relates to medical apparatus and instruments, relate in particular to the medical monitoring device, particularly a kind of mixed Svo2 (SvO
2) monitoring device, specifically be a kind of through air flue non-invasive monitoring blood oxygen saturation endotracheal tube.
Background technology:
In the prior art, use in the clinical and animal experiment that the widest to have wound monitoring cardiac function and body oxygen confession-oxygen to consume one of equilibrated method be to utilize the multi-cavity pulmonary artery catheter, the multi-cavity pulmonary artery catheter be twentieth century seventies by Swan, Ganz, people such as Forrester and Ellis invention.The Swan-Ganz conduit is used to monitor heart stroke, but guiding clinical treatment, therapeutic evaluation and clinical assistant diagnosis treatment etc.This technology provides powerful mean for the clinicist, has promoted the treatment management of clinical critical patient greatly.Through improving the pulmonary artery catheter of having developed sustainable monitoring cardiac output and mixed venous oxygen saturation.
The Swan-Ganz conduit is a kind of float catheter, has a fibre optics monitoring probe on its top, and the sustainable oxygen that carries out contains hemoglobin (HbO
2) saturation (SO
2, mensuration %).When placement was appropriate, the top that catheter tip props up was positioned at pulmonary artery, thereby that the oxygen saturation of measuring reaction is the oxygen saturation (SvO of mixed venous blood
2).
Mixed venous blood is meant the blood in the pulmonary artery, often complete blended blood after the superior and inferior vena cava drain is regarded as mixed venous blood, SvO during the extracorporeal circulation (CPB)
2It is the aggregative indicator of weighing the body oxygen equilibrium of supply and demand.According to Fick equation SvO
2=SaO
2-VO
2÷ (CO * 1.34 * Hcb), SvO
2Be subjected to arterial oxygen saturation (SaO
2), cardiac output (CO), hemoglobin (Hcb) and oxygen consumption (VO
2) influence.Mechanical ventilation after the tracheal intubation, SaO
2And VO
2When being constant substantially, SvO
2Can reflect the variation of CO.SvO
2Gave birth to before MAP, HR, CO, PAP and SVR change of lifting more.Someone reports 8 routine cardiac arrest patients, 15～20min SvO before cardiac arrest
2The decline of carrying out property.
According to surveying the lasting SvO that blood oxygen Swan-Ganz conduit provides
2Measurement result is for setting up the rational therapy scheme, as increasing preload, reduction afterload or using the myocardial excitability medicine and can make hemodynamic evaluation immediately.The patient of mechanical ventilation uses the effect of positive airway pressure (PEEP) of exhaling not can make judgement in a few minutes, continue to observe and the critical patient of therapeutic intervention successive SvO for needs
2Monitoring is unpriced means.
In a word, SvO
2The more sensitive reaction oxygen equilibrium of supply and demand of energy continues SvO
2Monitoring real data can be provided immediately exactly, the management of CPB is had great importance.Therefore, with the Swan-Ganz conduit introduce into clinical be major progress of monitoring technology, improved critical patient's salvage success rate effectively.
But because this conduit need insert pulmonary artery, so the patient is had certain danger.Concrete, can produce significantly again wound and produce many complication, comprising:
1. arrhythmia, when inserting conduit since the stimulation of conduit and operational motion is excessive all arrhythmia can occur, more be prone to when myocardium irritability is higher for seeing with ventricular premature contraction more.
2. balloon rupture, blood constituent is attached to balloon surface can make air bag elasticity reduce gradually, and conduit is kept somewhere for a long time, and repeatedly use repeatedly and the frequent overinflation of air bag etc. all can cause balloon rupture.
3. lung infraction, the balloon rupture mistake is annotated excess air, and thrombosis comes off and catheter retaining all can cause asymptomatic among a small circle lung infraction after for a long time around the conduit.
4. pulmonary artery rupture and hemorrhage the patient of pulmonary hypertension, is positioned at the pulmonary artery subbranch as catheter tip, but airbag aeration coup injury lung endothelium cause break hemorrhage.
5. catheter knotting, conduit be more soft to become loop even knotting more easily in the chambers of the heart.Entering as conduit does not more still have pressure waveform, often point out conduit in right room or the right ventricle become loop.
6. thrombosis is inserted any conduit and all can be caused thrombosis in the blood vessel, makes the easier generation of polyhexene material of pulmonary artery catheter.Conduit inserted after about 30-130 minute, can form the fibrin sleeve around conduit.Postmortem finds that conduit blood vessel endothelium, endocardium or valve on the way all has [to form.At the patient of low heart row, diffusivity intravascular hemolysis and congestive heart failure, easier formation thrombosis.
7. pericardial tamponade is done any operation and all may be caused cardiac perforation in heart, cause pericardial tamponade.
8. infect.
In addition, equipment and operation are had relatively high expectations.Operation need have certain condition, technical equipment, and obvious wound again, operation has certain step and difficulty, and the link and the factor that influence the result are more.
And, the medical expense costliness, patient economy burden obviously increases the weight of.
Therefore, developing noninvasive continuous monitoring equipment becomes problem demanding prompt solution, and in recent years, people work hard above-mentioned circulatory monitoring project is developed to the noinvasive direction.
The technology of measuring blood oxygen saturation in periphery is arranged in the research of carrying out at present, but there are many defectives in this technology both at home and abroad.Wherein, under the situation of mean arterial pressure (MAP) and temperature reduction, the result that finger tip blood oxygen saturation probe is measured can be affected, and therefore the critical patient, measures the blood oxygen saturation credibility of periphery and is doubted.And under low perfusion and mechanical interferential situation, the blood oxygen saturation of peripheral part position-findings such as finger and ear is often inaccurate.
Summary of the invention:
Technical problem of the prior art to be solved by this invention is: because in the prior art, traditional multi-cavity pulmonary artery catheter of extensively utilizing is measured in the mixed Svo2 technology, conduit need be inserted pulmonary artery, and the patient is had certain danger.Can produce significantly again wound and produce many complication.Still do not mix the device of Svo2 at present through the air flue non-invasive monitoring.And the technology of present periphery mensuration arterial oxygen saturation, also there are many defectives.Wherein, under the situation of mean arterial pressure (MAP) and temperature reduction, the result that finger tip oxygen saturation probe is measured can be affected, and therefore the critical patient, measures the oxygen saturation credibility of periphery and is doubted.And under low perfusion and mechanical interferential situation, the oxygen saturation of peripheral part position-findings such as finger and ear is often inaccurate.
The present invention solves the aforementioned problems in the prior the scheme that is adopted to provide a kind of through air flue non-invasive monitoring blood oxygen saturation endotracheal tube, described this catheter main body through air flue non-invasive monitoring blood oxygen saturation endotracheal tube is made of a left side double-lumen catheter, wherein, described left side double-lumen catheter is provided with a main cover capsule, the surface of described main cover capsule is provided with one first blood oxygen saturation probe, the outer side covers of described first blood oxygen saturation probe is provided with a first surface overlay film, the periphery of described first surface overlay film is connected with the surface of described main cover capsule, be provided with one first transmitting terminal and one first receiving terminal in described first blood oxygen saturation probe, described first transmitting terminal and first receiving terminal are connected with lead respectively, described lead is embedded in the tube wall of described left side double-lumen catheter, the left conduit of left side double-lumen catheter is provided with a secondary cover capsule, the surface of described secondary cover capsule is provided with one second blood oxygen saturation probe, the outer side covers of described second blood oxygen saturation probe is provided with a second surface overlay film, the periphery of described second surface overlay film is connected with the surface of described secondary cover capsule, be provided with one second transmitting terminal and one second receiving terminal in described second blood oxygen saturation probe, described second transmitting terminal and second receiving terminal are connected with lead respectively, and this lead is embedded in the left duct wall of described left side double-lumen catheter.
Further, an end that connects the lead of first transmitting terminal and first receiving terminal passes tube wall one end of described left side double-lumen catheter and is connected with a blood oxygen saturation monitoring instrument.
Further, the outer surface of described first blood oxygen saturation probe and second blood oxygen saturation probe all is parabolic shape.
Concrete, blood oxygen saturation probe described in the present invention, double-lumen catheter, blood oxygen saturation monitoring instrument all can adopt known technology of the prior art, relevant blood oxygen saturation probe, double-lumen catheter, blood oxygen saturation monitoring instrument known solution in the prior art, those of ordinary skill in the art all knows, so do not repeat them here.
Operation principle of the present invention is: the blood oxygen saturation probe is inserted person's windpipe in the lump with the endotracheal tube that inserts, adjust the position of endotracheal tube, make on the main cover capsule blood oxygen saturation probe positions over against aorta, the position of blood oxygen saturation probe is adjusted in the face of left pulmonary artery on the secondary cover capsule of left side, and blood oxygen saturation is popped one's head in the arterial oxygen saturation (SaO that obtains
2) and mixed venous oxygen saturation (SvO
2) signal be delivered to the blood oxygen saturation monitoring instrument by lead, thereby realize that blood oxygen saturation continuously and non-invasive monitoring.
The present invention and prior art contrast, and its effect is actively with tangible.The present invention is separately positioned on oxygen saturation oxygen saturation probe on the main body and left conduit of left side double-lumen catheter, the lead of transmission data is embedded in the tube wall of endotracheal tube, influence to endotracheal tube caliber sectional area is little, can not increase the airway resistance of ventilation, can not cause the additional injury of tracheal wall yet.Avoid because the extra additional injury that monitoring itself brings.Started new technique, also developed technology simultaneously, had clear and definite social meaning and medical value through air flue monitoring arterial oxygen saturation through the mixed Svo2 of air flue non-invasive monitoring.
Description of drawings:
Fig. 1 is the structural representation of an embodiment through air flue non-invasive monitoring blood oxygen saturation endotracheal tube of the present invention.
Fig. 2 is the partial structurtes sketch map through air flue non-invasive monitoring blood oxygen saturation endotracheal tube of the present invention.
Fig. 3 is the part section structural representation through air flue non-invasive monitoring blood oxygen saturation endotracheal tube of the present invention.
Fig. 4 is the part section structural representation of the pair cover capsule in air flue non-invasive monitoring blood oxygen saturation endotracheal tube of the present invention.
The specific embodiment:
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, of the present inventionly constitute by a double-lumen catheter 1 through air flue non-invasive monitoring blood oxygen saturation endotracheal tube, wherein, described double-lumen catheter 1 is provided with a main cover capsule 2, the surface of described main cover capsule 2 is provided with one first blood oxygen saturation probe 3, the outer side covers of described first blood oxygen oxygen saturation probe 3 is provided with a first surface overlay film 4, the periphery of described first surface overlay film 4 is connected with the surface of described main cover capsule 2, be provided with one first transmitting terminal 31 and one first receiving terminal 32 in described first blood oxygen saturation probe 3, described first transmitting terminal 31 and first receiving terminal 32 are connected with lead 5 respectively, described lead 5 is embedded in the tube wall of described double-lumen catheter 1, the left conduit 11 of described double-lumen catheter 1 is provided with a secondary cover capsule 12, the surface of described secondary cover capsule 12 is provided with one second oxygen saturation probe 13, the outer side covers of described second oxygen saturation probe 13 is provided with a second surface overlay film, the periphery of described second surface overlay film is connected with the surface of described secondary cover capsule 12, be provided with one second transmitting terminal and one second receiving terminal in described second oxygen saturation probe 13, described second transmitting terminal and second receiving terminal are connected with lead respectively, this lead is embedded in left conduit 11 tube walls of described double-lumen catheter 1, and passes back and blood oxygen saturation monitoring device based joining by the main pipe tube wall.
Further, an end of described lead 5 passes tube wall one end of described double-lumen catheter 1 and is connected with a data harvester.
Further, the outer surface of described blood oxygen saturation probe 3 and blood oxygen saturation probe 13 is parabolic shape.
Claims (3)
1. one kind through air flue non-invasive monitoring blood oxygen saturation endotracheal tube, catheter main body is made of a left side double-lumen catheter, it is characterized in that: described left side double-lumen catheter is provided with a main cover capsule, the surface of described main cover capsule is provided with one first blood oxygen saturation probe, the outer side covers of described first blood oxygen saturation probe is provided with a first surface overlay film, the periphery of described first surface overlay film is connected with the surface of described main cover capsule, be provided with one first transmitting terminal and one first receiving terminal in described first blood oxygen saturation probe, described first transmitting terminal and first receiving terminal are connected with lead respectively, described lead is embedded in the tube wall of described left side double-lumen catheter, the left conduit of left side double-lumen catheter is provided with a secondary cover capsule, the surface of described secondary cover capsule is provided with one second blood oxygen saturation probe, the outer side covers of described second blood oxygen saturation probe is provided with a second surface overlay film, the periphery of described second surface overlay film is connected with the surface of described secondary cover capsule, be provided with one second transmitting terminal and one second receiving terminal in described second blood oxygen saturation probe, described second transmitting terminal and second receiving terminal are connected with lead respectively, and this lead is embedded in the left duct wall of described left side double-lumen catheter.
2. as claimed in claim 1 through air flue non-invasive monitoring blood oxygen saturation endotracheal tube, it is characterized in that: an end that connects the lead of first transmitting terminal and first receiving terminal passes tube wall one end of described left side double-lumen catheter and is connected with a blood oxygen saturation monitoring instrument.
3. as claimed in claim 1 through air flue non-invasive monitoring blood oxygen saturation endotracheal tube, it is characterized in that: the outer surface of described first blood oxygen saturation probe and second blood oxygen saturation probe all is parabolic shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100536424A CN100381100C (en) | 2004-08-11 | 2004-08-11 | Tracheal catheter capable of monitoring mixed venous oxygen saturation via air passage without trauma |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100536424A CN100381100C (en) | 2004-08-11 | 2004-08-11 | Tracheal catheter capable of monitoring mixed venous oxygen saturation via air passage without trauma |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1732849A CN1732849A (en) | 2006-02-15 |
| CN100381100C true CN100381100C (en) | 2008-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100536424A Expired - Fee Related CN100381100C (en) | 2004-08-11 | 2004-08-11 | Tracheal catheter capable of monitoring mixed venous oxygen saturation via air passage without trauma |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145697A (en) * | 2016-02-29 | 2017-09-08 | 深圳市理邦精密仪器股份有限公司 | The treating method and apparatus of blood oxygen saturation |
| CN105816951A (en) * | 2016-03-09 | 2016-08-03 | 四川大学华西医院 | Multi-functional stomach tube concurrently having blood oxygen saturation monitoring function |
| CN107252336A (en) * | 2017-07-19 | 2017-10-17 | 内江市第人民医院 | Radial artery double bolloon intelligence compression hemostasis device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4824242A (en) * | 1986-09-26 | 1989-04-25 | Sensormedics Corporation | Non-invasive oximeter and method |
| US5916153A (en) * | 1997-10-27 | 1999-06-29 | Rhea, Jr.; W. Gardner | Multifunction catheter |
| CN1482448A (en) * | 2003-06-13 | 2004-03-17 | 周国明 | Non-invasive instrument for monitoring blood oxygen saturation of extracorporeal circulation |
| CN2759386Y (en) * | 2004-08-11 | 2006-02-22 | 上海第二医科大学附属仁济医院 | Tracheal catheter for non-traumatic monitoring oxygen saturation of mixed venose blood (SvO2) |
-
2004
- 2004-08-11 CN CNB2004100536424A patent/CN100381100C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4824242A (en) * | 1986-09-26 | 1989-04-25 | Sensormedics Corporation | Non-invasive oximeter and method |
| US5916153A (en) * | 1997-10-27 | 1999-06-29 | Rhea, Jr.; W. Gardner | Multifunction catheter |
| CN1482448A (en) * | 2003-06-13 | 2004-03-17 | 周国明 | Non-invasive instrument for monitoring blood oxygen saturation of extracorporeal circulation |
| CN2759386Y (en) * | 2004-08-11 | 2006-02-22 | 上海第二医科大学附属仁济医院 | Tracheal catheter for non-traumatic monitoring oxygen saturation of mixed venose blood (SvO2) |
Non-Patent Citations (3)
| Title |
|---|
| A pilot study of left tracheal pulse oximetry. J.Brimacombe et al.Anesth Analg,Vol.91 . 2000 * |
| Complications with flow-directed balloon-tipped catheters. Swan HJ et al.Ann Intern Med,Vol.91 No.3. 1979 * |
| the feasibility of transesophageal echocardiograph-guidedright and left ventricular oximetry in hemodynamically stablepatients undergoing coronary artery bypass grafting. J.Margreiter et al.Anesth Analg,Vol.94 . 2002 * |
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|---|---|
| CN1732849A (en) | 2006-02-15 |
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Granted publication date: 20080416 Termination date: 20100811 |