CN88203694U - Non-invasive sensor pulmonary artery pressure determination - Google Patents
Non-invasive sensor pulmonary artery pressure determination Download PDFInfo
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- CN88203694U CN88203694U CN 88203694 CN88203694U CN88203694U CN 88203694 U CN88203694 U CN 88203694U CN 88203694 CN88203694 CN 88203694 CN 88203694 U CN88203694 U CN 88203694U CN 88203694 U CN88203694 U CN 88203694U
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- pulmonary artery
- pressure
- sensor
- artery pressure
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Abstract
The utility model discloses a non-invasive sensor pulmonary artery pressure determination, witch overcomes the defects of the trauma and the danger when the right heart catheter measuring the pulmonary artery pressure presently. The head part of the sensor is coated with a small water sac of hermetic sandwich layer. The root part of the water sac is inserted into a plastic micro catheter. In this way, after inserted into the pulmonary artery via the oesophagus of people, the sensor can fill the physiological saline or contrast agent to the water sac. The utility model can determine the systolic pressure in the pulmonary artery and can determine the diastolic pressure and the mean pressure of the pulmonary artery.
Description
This utility model relates to a kind of medical diagnostic equipment, especially the diagnostor of pulmonary artery pressure non-invasive.
The main apparatus of current diagnosis pulmonary artery pressure is the right heart catheter analyzer shown in the figure one.During owing to use, the patient need insert right heart catheter from patient's blood vessel, and patient is painful big, and in the operation certain danger is arranged, so patient tends to be reluctant to be checked because of fear, has incured loss through delay diagnosis and treatment thus.Simultaneously, also must be equipped with the many people of doctor, check that formality is loaded down with trivial details through special training, and the inspection fee costliness.Although the ultrasonic doppler instrument (rolled up the 203rd page of the 3rd phase in 1987 the 8th by " Chinese ultrasound medicine magazine ", by name " the ultrasonic doppler non-invasive is surveyed the method and the value of pulmonary artery pressure ") remedied the defective of the traumatic inspection of above-mentioned right heart catheter analyzer, can not have wound ground and calculate the pressure that pulmonary artery is interior, but because of it is subjected to compliance change of lung, thoracic cavity and blood vessel wall and the influence of operation technique easily, error is big, poor repeatability, and costing an arm and a leg of equipment, also the end obtains promoting so far.
Task of the present utility model is to overcome existing above-mentioned deficiency in the prior art, and provide a kind of simple to operate, error is little, the pulmonary artery pressure force detector of good reproducibility, measures the purpose of pulmonary artery pressure to reach non-invasive ground.
The task that this utility model proposed is finished by following measure.The pulmonary artery pressure force transducer mainly is made up of the microtubular that conduit, sensor head, small water balloon and water filling are used.One pressure transducer head is installed on the top of conduit, the interlayer small water balloon that pressure transducer head outsourcing one is airtight, and insert a plastics microtubular at the water pocket root, but the pressure transducer water pocket of forming a water-filling that communicates with the external world, so that after people's esophagus is inserted into pulmonary artery, can in water pocket, fill normal saline or contrast agent at pick off.Not end with pressure transducer links to each other with esophagus pulmonary artery pressure microcomputer The real time measure analyser then.During use, the pressure transducer head is inserted into pulmonary artery rear wall section through people's esophagus, and to the small water balloon water-filling, pick off is pressed close to pulmonary artery, directly experience from the Pulmonic pressure of beating, and measure Pulmonic transmural pressure power thus, this transmural pressure power is the pressure in the pulmonary artery.
The accompanying drawing drawing is described as follows:
Fig. 1 represents the right heart catheter analyzer structure chart of prior art.
Fig. 2 represents structure chart of the present utility model.
Fig. 3 represents the sketch map behind this utility model water-filling.
Following this utility model will be described in further detail by embodiment.
Fig. 2, Fig. 3 have described shape and the structure before and after this utility model water-filling.One external diameter be installed be 2.5 millimeters, length on the top of conduit 8 and be 7 millimeters pressure transducer head 1; for experiencing pressure; sensing membrane 2 is equipped with in the side of sensor head 1; sensor head 1 outsourcing one interlayer small water balloon 5; the manufacture method of water pocket 5 is as follows: getting a special diameter is 2.5 millimeters; the poor rubber folliculus of long 20～25 millimeters garden cylindricality inserts sensor head 1 from opening, as protection capsule 3.Get a special diameter again and be 20～25 millimeters the spherical folliculus of thin rubber, as the overcoat capsule 4 of water pocket 5.It is 1～2 millimeter aperture that the one end has diameter, for inserting sensor head 1.Simultaneously, be 0.5 millimeter aperture at the other diameter that has in addition of aperture, for inserting water filling with microtubular 14.During assembling, sensor head 1 is inserted in the protection capsule 3 earlier, the sensing head 1 that will be with protection capsule 3 then is inserted in the overcoat capsule 4, in the conduit side of conduit 8 with sensor head 1 joint 6, reinstates suture 7 and tightens together with protection capsule 3, overcoat capsule 4 one.At last, insert water filling with microtubular 14 in the aperture of side, tighten the insertion mouth with line, it is standby that inspection does not have the back that leaks.
The other end of plastics microtubular 14 is that microtubular water filling three way cock 13,10 is the transducer of pressure transducer 9, and 11 is that the zeroing of pressure transducer 9 is spigot joint, and 12 is plug, and above each several part is decomposition pressure pick off 9 together.
During use, sensor plug 12 is inserted esophagus pulmonary artery pressure microcomputer The real time measure analyser or physiograph.After patient's throat one esophagus local anaesthesia, it is lubricated that the pressure transducer head 1 of water-filling is not wiped petrolatum, is inserted into the about 340 millimeters depths of esophagus then from patient's mouth.At this moment, in water pocket 5, annotate normal saline or contrast agent.Under monitoring, oscillograph withdraws from pressure transducer head 1 lentamente, on oscillograph, observe pulmonary artery transmural pressure Reeb shape in the esophagus of ideal or standard, handle esophagus pulmonary artery pressure microcomputer The real time measure analyser at last, the admission pressure curve also carries out computational analysis, prints the result.
In addition, this pressure transducer 9 also can carry out intragastric pressure and lung compliance mensuration.
The utility model compared with prior art, have the following advantages: can determine systolic pressure, diastolic pressure and mean pressure in the pulmonary artery non-invasive, simple to operate, error is little, good reproducibility, patient's no pain when checking, cheap, check result is accurate, compare with the right heart catheter pressure measurement, its coefficient correlation is greater than 0.90.
Claims (2)
1, a kind of pulmonary artery pressure force transducer is equipped with sensing membrane, it is characterized in that: be surrounded by a small water balloon 5 outside the head 1 of pressure transducer 9, the root of small water balloon 5 is inserted with water filling microtubular 14.
2, pulmonary artery pressure force transducer as claimed in claim 1 is characterized in that: small water balloon 5 is made up of the protection capsule 3 and the overcoat capsule 4 of pressure transducer head 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88203694 CN88203694U (en) | 1988-02-24 | 1988-02-24 | Non-invasive sensor pulmonary artery pressure determination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88203694 CN88203694U (en) | 1988-02-24 | 1988-02-24 | Non-invasive sensor pulmonary artery pressure determination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88203694U true CN88203694U (en) | 1988-10-19 |
Family
ID=4838462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88203694 Withdrawn CN88203694U (en) | 1988-02-24 | 1988-02-24 | Non-invasive sensor pulmonary artery pressure determination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88203694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106108872A (en) * | 2016-07-06 | 2016-11-16 | 河南驼人医疗器械集团有限公司 | A kind of tremulous pulse thermodilution catheter |
| CN109069034A (en) * | 2016-02-23 | 2018-12-21 | 波士顿科学国际有限公司 | Pressure-sensing godet system including optical conenctor cable |
-
1988
- 1988-02-24 CN CN 88203694 patent/CN88203694U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109069034A (en) * | 2016-02-23 | 2018-12-21 | 波士顿科学国际有限公司 | Pressure-sensing godet system including optical conenctor cable |
| CN106108872A (en) * | 2016-07-06 | 2016-11-16 | 河南驼人医疗器械集团有限公司 | A kind of tremulous pulse thermodilution catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |