CN212382627U - Esophagus pH-myoelectricity combined electrode catheter - Google Patents
Esophagus pH-myoelectricity combined electrode catheter Download PDFInfo
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- CN212382627U CN212382627U CN202020838543.1U CN202020838543U CN212382627U CN 212382627 U CN212382627 U CN 212382627U CN 202020838543 U CN202020838543 U CN 202020838543U CN 212382627 U CN212382627 U CN 212382627U
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Abstract
The utility model discloses an esophagus pH-myoelectricity combined electrode catheter, which comprises a catheter body, a pH conducting wire and a diaphragm conducting wire, wherein the surface of the catheter body is provided with 2 pH electrodes, a plurality of diaphragm electric signal recording electrodes and diaphragm electric signal reference electrodes; the 2 pH electrodes are respectively arranged at the tail end and the middle part of the tube body, the plurality of diaphragm electric signal recording electrodes are respectively arranged among the 2 pH electrodes, and the diaphragm electric signal reference electrode is arranged at the near end of the pH electrode at the middle part; all the pH electrodes are connected with a pH lead in the tube body, and a signal output end of the pH lead is provided with a pH processor joint; the diaphragm electric signal reference electrode and all the diaphragm electric signal recording electrodes are connected with a diaphragm wire in the tube body, and the signal output end of the diaphragm wire is provided with an amplifier joint. The utility model discloses can improve the accuracy of pipe location, retrench the operation, can lighten patient's uncomfortable sense again, can also realize detecting diaphragm function, help discovery leads to the palirrhea reason of gastroesophageal.
Description
Technical Field
The utility model relates to medical equipment, in particular to an esophagus pH-myoelectricity combined electrode catheter.
Background
Gastro-esophageal reflux is mainly acidic reflux and can be manifested as acid regurgitation, heartburn, poststernal pain, chronic cough, etc. The main causes of gastroesophageal reflux include dysfunction of the lower esophageal sphincter, impaired crunch of diaphragm muscle, decreased esophageal motility, and the like. Theoretically, the impaired function of the diaphragm can lead to the weakened clamping effect of the diaphragm foot and the reduced pressure of the lower esophageal sphincter, thereby causing the gastroesophageal reflux, however, at present, a single catheter which can simultaneously and accurately detect the function of the diaphragm and the gastroesophageal reflux does not exist clinically.
Esophageal 24-hour pH monitoring is an adjunct method to detect the presence or absence of gastroesophageal reflux. The accurate placement of the esophageal pH electrode catheter is closely related to the detection result. The ideal location is for the proximal pH electrode to be placed 5cm from the proximal edge of the lower esophageal sphincter. The current common localization methods in clinic include esophageal manometry and pH gradient.
Esophageal tonometry is based on the creation of a high-pressure zone by the physiological sphincter under the esophagus, which is the primary defense barrier against gastroesophageal reflux. The manometry requires two intubations of the patient, increasing discomfort to the patient. And the equipment required for pressure measurement is complex and expensive. In addition, the high pressure zone of the lower esophageal sphincter is not obvious and difficult to accurately locate in most gastroesophageal reflux patients.
The pH gradient method places electrodes based on the significant difference in pH values within the stomach and esophagus. However, in patients with hyperchlorhydria or hypogastria, the pH gradient between the esophagus and the stomach is not obvious, which affects the location.
The esophageal manometry and the pH gradient method adopted by the method have more influence factors, can not accurately position the catheter, influence the judgment of gastroesophageal reflux, and can not detect the function of the diaphragm.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide an esophagus pH-myoelectricity combined electrode catheter. The esophagus pH-myoelectricity combined electrode catheter is simple in structure, can improve the accuracy of catheter positioning, simplify operation, reduce discomfort of a patient, realize diaphragm function detection and help to find the reason causing gastroesophageal reflux.
The purpose of the utility model is realized through the following technical scheme: the esophagus pH-myoelectricity combined electrode catheter comprises a catheter body, a pH conducting wire and a diaphragm conducting wire, wherein 2 pH electrodes, a plurality of diaphragm electric signal recording electrodes and diaphragm electric signal reference electrodes are arranged on the surface of the catheter body; the 2 pH electrodes are respectively arranged at the far end and the middle part of the tube body, the plurality of diaphragm electric signal recording electrodes are respectively positioned between the 2 pH electrodes, and the diaphragm electric signal reference electrode is positioned between the pH electrode at the middle part of the tube body and the near end of the tube body; all pH electrodes are connected with a pH lead wire inserted into the tube body, and the signal output end of the pH lead wire is provided with a pH processor joint; the diaphragm electric signal reference electrode and all the diaphragm electric signal recording electrodes are connected with a diaphragm lead inserted into the tube body, and the signal output end of the diaphragm lead is provided with an amplifier joint.
Preferably, the number of the diaphragm electric signal recording electrodes is 5, and the distances between every two adjacent diaphragm electric signal recording electrodes are equal; from the far end of body to the near-end direction of body, the insulating interval that is located between the pH electrode of body distal end and the diaphragm electric signal recording electrode that is located the head is greater than 5cm, and the interval that is located between the pH electrode in body middle part and the diaphragm electric signal recording electrode that is located row in the intermediate position equals 5 cm.
Preferably, the distance between the adjacent 2 diaphragm electric signal recording electrodes is 1 cm.
Preferably, 5 diaphragmatic electric signal recording electrodes form 3 leads with the same specification, and 1 diaphragmatic electric signal recording electrode forming another lead is arranged between 2 diaphragmatic electric signal electrodes in each lead.
Preferably, the length of each diaphragm electric signal recording electrode and the length of each diaphragm electric signal reference electrode are both 1 cm.
Preferably, the length of each of the 2 pH electrodes is less than 1 cm.
Preferably, the distal end of body is equipped with the seal, the near-end of body is equipped with the bifurcation head, pH wire and diaphragm wire are all inserted in the body through the bifurcation head.
The utility model discloses for prior art have following advantage:
1. this pipe is united to esophagus pH-flesh electricity is integrated in the body with diaphragm electricity signal recording electrode, diaphragm electricity signal reference electrode, pH electrode, diaphragm electric lead, pH wire to can realize the detection of diaphragm flesh electricity signal, pH value in the stomach and esophagus pH value simultaneously, this sphincter position under the esophagus of can pinpointing and discernment whether take place the stomach esophagus and regurgitate, can also accurately take notes diaphragm flesh electricity, tentatively knows the diaphragm function, thereby help the discovery leads to the palirrhea reason of stomach esophagus.
2. The esophagus pH-myoelectricity combined catheter does not need to be like a traditional catheter, solves the problem that two catheters need to be placed due to positioning and detecting the pH value of the esophagus, simplifies the operation of accurate placement of the catheters, reduces the examination cost and relieves the discomfort of patients.
Drawings
Fig. 1 is a schematic structural diagram of the esophageal pH-myoelectricity combined electrode catheter of the present invention.
Wherein, 1 and 2 are pH electrodes, 3 to 7 are diaphragm signal recording electrodes, 8 is a diaphragm signal reference electrode, 9 is a tube body, 10 is a bifurcation head, 11 is a pH lead, 12 is a diaphragm lead, 13 is a pH processor joint, 14 is an amplifier joint, 15 is a seal, and I, II and III are leads.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The esophageal pH-myoelectric combined electrode catheter shown in fig. 1 comprises a catheter body, a pH lead and a diaphragm lead, wherein 2 pH electrodes, a plurality of diaphragm electric signal recording electrodes and diaphragm electric signal reference electrodes are arranged on the surface of the catheter body; the 2 pH electrodes are respectively arranged at the far end (namely, the end inserted into the stomach of a human body in an actual operation) and the middle part of the tube body, the plurality of diaphragm electric signal recording electrodes are all positioned between the 2 pH electrodes, and the diaphragm electric signal reference electrode is positioned between the pH electrode at the middle part of the tube body and the near end (namely, the end which is not inserted into the human body in the actual operation) of the tube body; all pH electrodes are connected with a pH lead wire inserted into the tube body, and a pH processor joint is arranged at the signal output end (namely, the end extending out of the tube body) of the pH lead wire; the diaphragm electric signal reference electrode and all the diaphragm electric signal recording electrodes are connected with a diaphragm lead inserted into the tube body, and the signal output end of the diaphragm lead is provided with an amplifier joint. When in use, the amplifier joint and the pH processor joint are respectively connected with the diaphragm electric signal amplifier and the pH processor, and the diaphragm electric signal amplifier and the pH processor are connected with a computer to process and display the detection data in the computer; and the diaphragm electric signal reference electrode is used for grounding and providing a reference for the diaphragm electric signal recording electrode.
Wherein, 2 pH electrodes are respectively a pH electrode 1 and a pH electrode 2, the lengths of the pH electrode 1 and the pH electrode 2 are both 0.5mm, wherein the pH electrode 1 is close to the seal of the tube body, and the pH electrode 1 is used for detecting the pH value in the stomach; when the probe is inserted into a human body for detection, the pH electrode 2 is positioned at about 5cm from the proximal edge of the lower esophageal sphincter for detecting the pH value of the esophagus.
The number of the diaphragm electric signal recording electrodes is 5, the 5 diaphragm electric signal recording electrodes are 3-7 diaphragm electric signal recording electrodes respectively, and the distances between the adjacent 2 diaphragm electric signal recording electrodes are equal; in the direction from the far end of the tube body to the near end of the tube body, the insulation distance between the pH electrode positioned at the far end of the tube body and the diaphragmatic muscle electric signal recording electrode positioned at the head is more than 5cm, namely the insulation distance between the pH electrode 1 and the diaphragmatic muscle electric signal electrode 3 is more than 5 cm; and the distance between the pH electrode positioned in the middle of the tube body and the diaphragm electric signal recording electrode arranged in the middle is equal to 5cm, namely the distance between the pH electrode 2 and the diaphragm electric signal electrode 5 is equal to 5 cm. The length of each diaphragm electric signal recording electrode 3-7 and the length of each diaphragm electric signal reference electrode 8 are both 1 cm. The distance between every two adjacent diaphragm electric signal recording electrodes is 1 cm. The structure is compact, and the accuracy of the detection structure can be ensured by a proper distance.
The 5 diaphragmatic electric signal recording electrodes form 3 leads with the same specification, and 1 diaphragmatic electric signal recording electrode forming another lead is arranged between 2 diaphragmatic electric signal electrodes in each lead. Specifically, as shown in fig. 1, the diaphragmatic electric signal recording electrodes 3 and 5 form a lead I, the diaphragmatic electric signal recording electrodes 4 and 6 form a lead II, and the diaphragmatic electric signal recording electrodes 5 and 7 form a lead III, so that 2 diaphragmatic electric signal electrodes in each lead are separated by 1 diaphragmatic electric signal electrode in another lead, and the lead I and the lead III share 1 diaphragmatic electric signal recording electrode 5. And (3) observing the myoelectric amplitude of the diaphragm recorded by each lead in real time, and when a signal with similar amplitude and larger amplitude than that recorded by the lead II is recorded by the lead I and the lead III, prompting that the diaphragm signal recording electrode 5 is at the diaphragm level of the esophagus, namely accurately placing the pH electrode 2 at the position of about 5cm away from the proximal edge of the lower esophageal sphincter. At this time, the potential of the lead II is offset because the upper and lower electrodes of the lead II are equal to the diaphragm, and only a small diaphragm electromyographic signal is recorded. In addition, by measuring and analyzing myoelectric signals of the diaphragm muscles of each lead, the function of the diaphragm can be preliminarily judged, and the finding of relevant reasons of gastroesophageal reflux is facilitated.
The length of the diaphragm electric signal reference electrode is 1 cm. The diaphragm electric signal reference electrode with proper length can further ensure the detection accuracy.
The distal end of body is equipped with seals, the near-end of body is equipped with the bifurcation head, pH wire and diaphragm wire all insert the body through the bifurcation head. This simple structure can guarantee to have relative leakproofness in the body to play the guard action to the pH wire and the diaphragm muscle wire in the body.
The above-mentioned specific implementation is the preferred embodiment of the present invention, can not be right the utility model discloses the limit, any other does not deviate from the technical scheme of the utility model and the change or other equivalent replacement modes of doing all contain within the scope of protection of the utility model.
Claims (7)
1. The esophagus pH-myoelectricity combined electrode catheter is characterized in that: the pH electrode type diaphragm electric signal monitoring device comprises a tube body, a pH wire and a diaphragm wire, wherein 2 pH electrodes, a plurality of diaphragm electric signal recording electrodes and diaphragm electric signal reference electrodes are arranged on the surface of the tube body; the 2 pH electrodes are respectively arranged at the far end and the middle part of the tube body, the plurality of diaphragm electric signal recording electrodes are respectively positioned between the 2 pH electrodes, and the diaphragm electric signal reference electrode is positioned between the pH electrode at the middle part of the tube body and the near end of the tube body; all pH electrodes are connected with a pH lead wire inserted into the tube body, and the signal output end of the pH lead wire is provided with a pH processor joint; the diaphragm electric signal reference electrode and all the diaphragm electric signal recording electrodes are connected with a diaphragm lead inserted into the tube body, and the signal output end of the diaphragm lead is provided with an amplifier joint.
2. The esophageal pH-myoelectric combined electrode catheter according to claim 1, wherein: the number of the diaphragm electric signal recording electrodes is 5, and the distances between every two adjacent diaphragm electric signal recording electrodes are equal; from the far end of body to the near-end direction of body, the insulating interval that is located between the pH electrode of body distal end and the diaphragm electric signal recording electrode that is located the head is greater than 5cm, and the interval that is located between the pH electrode in body middle part and the diaphragm electric signal recording electrode that is located row in the intermediate position equals 5 cm.
3. The esophageal pH-myoelectric combined electrode catheter according to claim 2, wherein: the distance between every two adjacent diaphragm electric signal recording electrodes is 1 cm.
4. The esophageal pH-myoelectric combined electrode catheter according to claim 2, wherein: the 5 diaphragmatic electric signal recording electrodes form 3 leads with the same specification, and 1 diaphragmatic electric signal recording electrode forming another lead is arranged between 2 diaphragmatic electric signal electrodes in each lead.
5. The esophageal pH-myoelectric combined electrode catheter according to claim 1, wherein: the length of the diaphragm electric signal recording electrode and the length of the diaphragm electric signal reference electrode are both 1 cm.
6. The esophageal pH-myoelectric combined electrode catheter according to claim 1, wherein: the length of each of the 2 pH electrodes is less than 1 cm.
7. The esophageal pH-myoelectric combined electrode catheter according to claim 1, wherein: the distal end of body is equipped with seals, the near-end of body is equipped with the bifurcation head, pH wire and diaphragm wire all insert the body through the bifurcation head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020838543.1U CN212382627U (en) | 2020-05-19 | 2020-05-19 | Esophagus pH-myoelectricity combined electrode catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020838543.1U CN212382627U (en) | 2020-05-19 | 2020-05-19 | Esophagus pH-myoelectricity combined electrode catheter |
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| Publication Number | Publication Date |
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| CN212382627U true CN212382627U (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020838543.1U Active CN212382627U (en) | 2020-05-19 | 2020-05-19 | Esophagus pH-myoelectricity combined electrode catheter |
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| CN (1) | CN212382627U (en) |
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