CN215024469U - Nerve monitoring trachea cannula - Google Patents
Nerve monitoring trachea cannula Download PDFInfo
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- CN215024469U CN215024469U CN202120254263.0U CN202120254263U CN215024469U CN 215024469 U CN215024469 U CN 215024469U CN 202120254263 U CN202120254263 U CN 202120254263U CN 215024469 U CN215024469 U CN 215024469U
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Abstract
The utility model discloses a nerve monitoring trachea cannula, which relates to the field of medical appliances and simultaneously realizes the functions of a human body breathing channel and nerve monitoring; it includes: the trachea cannula comprises a cannula, a positioning cuff, a PVC small hose, a cuff inflation valve and a cannula connector, wherein the cannula, the positioning cuff, the PVC small hose, the cuff inflation valve and the cannula connector form a complete trachea cannula; further comprising: a flexible electrode; the flexible electrode is stuck on the outer wall of the intubation above the positioning cuff; the flexible electrode comprises a flexible film, a conductive circuit is arranged on one side of the flexible film, and a back glue layer is arranged on the whole or part of the other side of the flexible film. The utility model arranges the conductive circuit on the flexible film, and further pastes the flexible film on the outer wall of the trachea cannula through the gum layer; the flexible electrode has good flexibility, can deform along with the bending deformation of the tracheal cannula, but cannot influence the signal conduction function of the flexible electrode due to the deformation of the tracheal cannula, so that the monitoring result is influenced.
Description
Technical Field
The utility model relates to a trachea cannula technical field, concretely relates to nerve monitoring trachea cannula.
Background
In the medical field, the functions and states of corresponding tissues of a human body are monitored by monitoring or acquiring various electric signals of the human body; in an intubation tube component such as an endotracheal intubation used for a surgical operation, continuous detection of nerves is realized by arranging an electrode on the outer wall of the intubation tube. However, since most of the endotracheal intubation and other intubation tubes are flexible tubes, the conventional method for disposing electrodes on the intubation tubes is as follows:
1. various signals of a human body are collected or transmitted through the metal conducting wire, the metal conducting wire is hard and easily scratches the human body tissue, the contact area with the human body tissue is small, the collected or transmitted signals are insufficient, and the result error of monitoring the human body tissue is high.
2. Various signals of a human body are collected or transmitted through the metal sheet, the contact area of the metal sheet relative to the metal filaments and the human body tissue is relatively large, but the human body tissue has various shapes, and the method is not easy to operate for small cavities.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects existing in the prior art, the utility model provides a nerve monitoring trachea cannula.
The utility model discloses a nerve monitoring trachea cannula, include: the tracheal intubation comprises an intubation tube, a positioning cuff, a PVC small hose, a cuff inflation valve and an intubation joint, wherein the intubation tube, the positioning cuff, the PVC small hose, the cuff inflation valve and the intubation joint form a complete tracheal intubation; further comprising: a flexible electrode; the flexible electrode is adhered to the outer wall of the cannula above the positioning cuff;
the flexible electrode comprises a flexible film, a flexible conducting circuit is arranged on one side of the flexible film, and an elastic back glue layer is arranged on the whole or part of the other side of the flexible film.
As a further improvement of the utility model, the inserting end of the inserting tube is provided with the positioning cuff, the other end is provided with the inserting tube joint, and the inserting tube is provided with scales; the PVC small hose is inserted into the intubation tube from the middle part of the intubation tube, one end of the PVC small hose is communicated with the positioning cuff, the other end of the PVC small hose is provided with the cuff inflation valve, and the cuff inflation valve is connected with the inflation end;
the flexible electrode is completely attached to the insertion tube due to the shape design, and the scales are exposed after the flexible electrode is attached.
As a further improvement of the utility model, the flexible conductive circuit comprises a plurality of pairs of positive and negative electrodes, and each pair of positive and negative electrodes is composed of conductive paste or conductive powder printed on the flexible film.
As a further improvement of the present invention, the flexible film is a TPU film; the elastic back glue layer is of a three-layer structure, wherein the middle layer is a thin film, and the outer two layers are glue layers.
As a further improvement of the utility model, the conductive paste is silver paste or silver compound paste, and the conductive powder is silver powder or silver compound powder.
As a further improvement of the utility model, the positive and negative electrodes include electrode tip and electrode line, electrode line one end with the electrode tip links to each other, the other end is connected on the joint.
As a further improvement of the present invention, the flexible film comprises a detection portion and a connection portion connected to each other, and the detection portion and the connection portion form an obtuse angle;
the electrode tip is disposed on the detection portion, and the electrode wire is disposed on the connection portion.
As a further improvement of the present invention, the flexible membrane includes a detection portion, a first branch, a second branch, and a lead-out portion;
the first branch and the second branch are arranged in parallel at intervals, one end of the first branch and one end of the second branch are connected with the detection part, the other end of the first branch and the other end of the second branch are connected with the leading-out part, the first branch or the second branch is arranged in parallel with the axis of the detection part, and the first branch or the second branch is arranged perpendicular to the axis of the leading-out part;
the electrode tip is arranged on the detection part, one part of the electrode wires are arranged on the first branch, the other part of the electrode wires are arranged on the second branch, and the tail ends of the electrode wires are converged and led out on the leading-out part.
As a further improvement of the utility model, the electrode tip is corrugated and adjacent interval between the electrode tip is greater than 0.1mm, the electrode line is rectilinearly and adjacent interval between the electrode line is for being greater than 0.1mm, it connects for the standard, be with anti oxidation coating on electrode tip and the electrode line, brush insulating oil on the oxide layer of electrode line and form the insulating layer.
As a further improvement of the present invention, the distance between the central line of the first branch and the central line of the second branch is half of the circumference of the insertion tube.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model arranges the conductive circuit on the flexible film, and further pastes the flexible film on the outer wall of the trachea cannula through the gum layer; the flexible electrode has good flexibility, can deform along with the bending deformation of the tracheal cannula, but cannot influence the signal conduction function of the flexible electrode due to the deformation of the tracheal cannula, so that the monitoring result is influenced.
Drawings
Fig. 1 is a schematic structural view of a nerve monitoring endotracheal tube disclosed in an embodiment of the present invention;
fig. 2 is a cross-sectional view of a flexible electrode according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a flexible electrode according to an embodiment of the present invention;
fig. 4 is another schematic structural diagram of a flexible electrode according to an embodiment of the present invention.
In the figure:
10. a flexible film; 11. a detection unit; 12. a connecting portion; 13. a first branch; 14. a second branch; 15. a lead-out section; 20. a flexible conductive circuit; 21. positive and negative electrodes; 22. an electrode tip; 23. an electrode wire; 30. an elastic gum layer; 40. a joint; 50. a through hole; 60. tracheal intubation; 61. inserting a tube; 62. positioning the cuff; 63. a PVC small hose; 64. a cuff inflation valve; 65. an intubation joint.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1 and 2, the utility model discloses a nerve monitoring tracheal cannula, which relates to the field of medical appliances and simultaneously realizes the functions of a human body respiratory passage and nerve monitoring; it includes: the intubation 61, the positioning cuff 62, the PVC small hose 63, the cuff inflation valve 64 and the intubation joint 65 form a complete endotracheal intubation 60; simultaneously, still include: a flexible electrode; the flexible electrode is adhered to the outer wall of the cannula 61 above the positioning cuff 62; the flexible electrode comprises a flexible film 10, a flexible conductive circuit 20 and an elastic gum layer 30, wherein the flexible conductive circuit 20 is arranged on one side of the flexible film 10, and the elastic gum layer 30 is arranged on the whole or part of the other side of the flexible film 10. Furthermore, the flexible electrode can be applied to trachea cannula (silicone tube or PVC tube) and other tube bodies for nerve detection, and can also be applied to other structures which have requirements on the ductility of the electrode, such as sheet-shaped and block-shaped carriers.
Specifically, the method comprises the following steps:
in the structure of the trachea cannula 60 of the utility model, the inserting end of the cannula 61 is provided with a positioning cuff 62, the other end is provided with a cannula joint 65, and the cannula 61 is provided with scales; the PVC small hose 63 is inserted into the cannula 61 from the middle part of the cannula 61, one end of the PVC small hose 63 is communicated with the positioning cuff 62 to realize the inflation and positioning of the positioning cuff 62, the other end is provided with a cuff inflation valve 64, and the cuff inflation valve 64 is connected with an inflation end (not shown in the figure);
the shape of the flexible electrode is designed to be completely attached to the insertion tube, and after the flexible electrode is attached, the flexible electrode is prevented from wrinkling, excessive burrs and the like; for example, when the insertion tube is a cylindrical tube, the pasting part of the flexible electrode is unfolded to be square and has a width not larger than the circumference of the insertion tube; when the intubation tube is an arc tube with a certain radian, the pasting part of the flexible electrode can be in a matched shape, so that the pasting part can be matched with the structure of the intubation tube; meanwhile, the utility model ensures that the scale can be exposed from the insertion tube after the flexible electrode is pasted; for example, the utility model can be hollowed out at the position of the flexible electrode corresponding to the scale, so that the scale is exposed after being pasted; or a spiral wound flexible electrode to display a scale or the like.
The flexible conductive circuit 20 of the present invention includes a plurality of pairs of positive and negative electrodes 21, preferably four pairs of positive and negative electrodes 21 as shown in fig. 3 and 4; the positive and negative electrodes 21 can form a loop by themselves, the conductive circuits have certain elasticity, when the flexible film deforms along with stretching, bending, folding and the like, the conductive circuits cannot be disconnected, and each pair of positive and negative electrodes 21 consists of conductive paste or conductive powder printed on the flexible film 10; the flexible film 10 of the present invention is a thin film made of TPU or PET film, preferably a TPU film; the conductive paste used for printing is a metal paste or a paste of a metal compound, preferably a silver paste or a silver compound paste; the conductive powder used for printing is a metal powder or a powder of a metal compound, preferably a silver powder or a silver compound powder.
Each electrode in the positive and negative electrodes 21 of the utility model comprises an electrode tip 22 and an electrode wire 23, one end of the electrode wire 23 is connected with the electrode tip 22, and the other end is connected with the joint 40; the electrode tips of the positive and negative electrodes 21 form a sensing point for transmitting the sensed potential to an external monitor or the like through the electrode wire 23 and the connector 40. Further, the electrode tips 22 are corrugated, the distance between adjacent electrode tips 22 is greater than 0.1mm, the electrode wires 23 are linear, and the distance between adjacent electrode wires 23 is greater than 0.1 mm; the connector 40 is a standard connector and can be directly connected with corresponding equipment (such as a monitor and the like); the electrode tip 22 and the electrode wire 23 are provided with an anti-oxidation layer to prevent the electrode and the electrode wire from being oxidized; the electrode wire 23 may be coated with an insulating oil on the oxidation-resistant layer to form an insulating layer.
As shown in fig. 3, as a structure of the flexible electrode, the flexible membrane 10 of the present invention includes an integrated detecting portion 11 and a connecting portion 12, the detecting portion 11 is in a short rectangular shape (four corners are in arc transition), the connecting portion 12 is in a long rectangular shape, wherein, as a feasible size design, the length and width of the detecting portion 11 is 55mm and 36mm, and the length and width of the connecting portion 12 is 340mm and 8.5 mm; the long edge of the detection part 11 and the long edge of the connecting part 12 form an obtuse angle and are in arc transition, and the preferred angle is 120-145 degrees; through the obtuse angle connection of the detection part 11 and the connection part 12, the connection part 12 can be wound on the tube body in the spiral upward direction after the detection part 11 is pasted on the tube body, so that the flexible electrode is stressed on the tube body uniformly and most scales on the tube body can be exposed, and the reading of the flexible electrode is not influenced.
As shown in fig. 3, the present invention provides an electrode tip 22 on the detection part 11, and an electrode wire 23 on the connection part 12; eight electrode wires 23 are correspondingly connected to the electrode head 22, and the other ends are connected to corresponding pins of the joint 40. Further, the electrode tip 22 of the present invention is corrugated, and the corrugated design can increase the area of the electrode tip on the detection portion 11 on the premise of the limited area of the detection portion, thereby improving the accuracy of detection; furthermore, the width of the electrode tip 22 is 3-4 mm, and the distance between the connected electrode tips is 0.5-1 mm; furthermore, the electrode wires 23 of the present invention are linear and have a width of 0.5mm, and the space between the connected electrode wires 23 is 0.5 mm; further, the joint 40 of the present invention is preferably a dupont joint; further, the present invention brushes an insulating oil on the electrode wire 23 (at the position of the dotted frame shown in fig. 3), thereby forming an insulating layer.
As shown in fig. 4, as another structure of the flexible electrode, the flexible membrane 10 of the present invention includes an integrated detecting portion 11, a first branch 13, a second branch 14 and a leading portion 15, the detecting portion 11 is in a short rectangular shape (four corners are in arc transition), the first branch 13, the second branch 14 and the leading portion 15 are in a long rectangular shape, wherein, as a feasible size design, the length and width of the detecting portion 11 is 55mm and 36mm, the length and width of the first branch 13 and the second branch 14 is 138mm and 7.5mm, the joint of the first branch 13 or the second branch 14 is in a tapered transition of 22mm, and the length and width of the leading portion 15 is 58mm and 13.5 mm; the first branch 13 and the second branch 14 are arranged in parallel at intervals, and a closed through hole 50 is formed between the first branch and the second branch; one end of the first branch 13 and one end of the second branch 14 are connected with the detection part 11, the other end of the first branch 13 and the other end of the second branch 14 are connected with the leading-out part 15, the first branch 13 or the second branch 14 are arranged in parallel with the axis of the detection part 11, and the first branch 13 or the second branch 14 is arranged perpendicular to the axis of the leading-out part 15 and is in circular arc transition at the connection position. Furthermore, the distance between the central lines of the first branch 13 and the second branch 14 is half of the circumference of the pipe body, the design of the structure ensures that the first branch 13 can be pasted on the upper side wall of the pipe body, and the second branch 14 is symmetrically pasted on the lower side wall of the pipe body, so that the stress of the flexible electrode on the pipe body is uniform; meanwhile, the scales on the pipe body can be exposed by the design of the through hole 50, and the reading of the pipe body is not influenced; further, the width of the through hole 50 is preferably 1/4 of the cannula circumference.
As shown in fig. 4, the present invention arranges eight electrode tips 22 on the detecting portion 11, four electrode wires 23 on the first branch 13, the remaining four electrode wires 23 on the second branch 14, and the ends of the eight electrode wires 23 are gathered and led out on the leading portion 15; based on the above structure, one end of the eight electrode wires 23 is correspondingly connected to the electrode head 22, and the other end is connected to the corresponding pin of the joint 40. Further, the electrode tip 22 of the present invention is corrugated, and the corrugated design can increase the area of the electrode tip on the detection portion 11 on the premise of the limited area of the detection portion, thereby improving the accuracy of detection; furthermore, the width of the electrode tip 22 is 3-4 mm, and the distance between the connected electrode tips is 0.5-1 mm; furthermore, the electrode wires 23 of the present invention are linear and have a width of 1mm, and the space between the connected electrode wires 23 is 0.5 mm; further, the joint 40 of the present invention is preferably a dupont joint; further, the present invention brushes an insulating oil on the electrode wire 23 (at the position of the dotted frame shown in fig. 4), thereby forming an insulating layer. Furthermore, the utility model can also paste a transparent thin slice with the thickness of 0.2mm on the leading-out part 15.
The elastic back glue layer 30 of the utility model is a three-layer structure, the middle layer is a film, and the two outer layers are glue layers; the gum thickness is less than 0.2mm, has elasticity, and deformation along with the deformation of flexible membrane can select different gums simultaneously according to pasting the difference of material.
The utility model has the advantages that:
the utility model arranges the conductive circuit on the flexible film, and further pastes the flexible film on the outer wall of the trachea cannula through the gum layer; the flexible electrode has good flexibility, can deform along with the bending deformation of the tracheal cannula, but cannot influence the signal conduction function of the flexible electrode due to the deformation of the tracheal cannula, so that the monitoring result is influenced.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A neuromonitoring endotracheal tube comprising: the tracheal intubation comprises an intubation tube, a positioning cuff, a PVC small hose, a cuff inflation valve and an intubation joint, wherein the intubation tube, the positioning cuff, the PVC small hose, the cuff inflation valve and the intubation joint form a complete tracheal intubation; it is characterized by also comprising: a flexible electrode; the flexible electrode is adhered to the outer wall of the cannula above the positioning cuff;
the flexible electrode comprises a flexible film, a flexible conducting circuit is arranged on one side of the flexible film, and an elastic back glue layer is arranged on the whole or part of the other side of the flexible film.
2. The neuromonitoring endotracheal tube of claim 1 wherein the insertion end of the tube is provided with the positioning cuff, the other end is provided with the tube connector, and the tube is provided with a scale; the PVC small hose is inserted into the intubation tube from the middle part of the intubation tube, one end of the PVC small hose is communicated with the positioning cuff, the other end of the PVC small hose is provided with the cuff inflation valve, and the cuff inflation valve is connected with the inflation end;
the flexible electrode is completely attached to the insertion tube due to the shape design, and the scales are exposed after the flexible electrode is attached.
3. The neuromonitoring endotracheal tube of claim 2 wherein said flexible conductive circuit includes a plurality of pairs of positive and negative electrodes, each pair of said electrodes being formed of a conductive paste or powder printed on said flexible membrane.
4. The neuromonitoring endotracheal tube of claim 3 wherein the flexible membrane is a TPU membrane; the elastic back glue layer is of a three-layer structure, wherein the middle layer is a thin film, and the outer two layers are glue layers.
5. The neuromonitoring endotracheal tube of claim 3 wherein the conductive paste is silver paste or silver compound paste and the conductive powder is silver powder or silver compound powder.
6. The neuromonitoring endotracheal tube of any one of claims 3 to 5, wherein the positive and negative electrodes comprise an electrode tip and electrode wires, one end of the electrode wires being connected to the electrode tip and the other end being connected to a connector.
7. The neuromonitoring endotracheal tube of claim 6 wherein the flexible membrane includes a sensing portion and a connecting portion connected and the sensing portion and the connecting portion are at an obtuse angle;
the electrode tip is disposed on the detection portion, and the electrode wire is disposed on the connection portion.
8. The neuromonitoring endotracheal tube of claim 6 wherein the flexible membrane includes a detection portion, a first branch, a second branch, and an exit portion;
the first branch and the second branch are arranged in parallel at intervals, one end of the first branch and one end of the second branch are connected with the detection part, the other end of the first branch and the other end of the second branch are connected with the leading-out part, the first branch or the second branch is arranged in parallel with the axis of the detection part, and the first branch or the second branch is arranged perpendicular to the axis of the leading-out part;
the electrode tip is arranged on the detection part, one part of the electrode wires are arranged on the first branch, the other part of the electrode wires are arranged on the second branch, and the tail ends of the electrode wires are converged and led out on the leading-out part.
9. The endotracheal intubation for nerve monitoring of claim 7 or 8, wherein the tips are corrugated and the distance between adjacent tips is greater than 0.1mm, the electrode wires are linear and the distance between adjacent electrode wires is greater than 0.1mm, the connectors are standard connectors, the tips and the electrode wires are attached with an oxidation-resistant layer, and an insulating layer is formed by brushing insulating oil on the oxidation layer of the electrode wires.
10. The neuromonitoring endotracheal tube of claim 8 wherein the first branch is spaced from the second branch centerline by one-half of the circumference of the tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120254263.0U CN215024469U (en) | 2021-01-28 | 2021-01-28 | Nerve monitoring trachea cannula |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120254263.0U CN215024469U (en) | 2021-01-28 | 2021-01-28 | Nerve monitoring trachea cannula |
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| CN215024469U true CN215024469U (en) | 2021-12-07 |
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| CN202120254263.0U Active CN215024469U (en) | 2021-01-28 | 2021-01-28 | Nerve monitoring trachea cannula |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115645696A (en) * | 2022-12-13 | 2023-01-31 | 山东百多安医疗器械股份有限公司 | Double-cuff nerve monitoring tracheal cannula |
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2021
- 2021-01-28 CN CN202120254263.0U patent/CN215024469U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115645696A (en) * | 2022-12-13 | 2023-01-31 | 山东百多安医疗器械股份有限公司 | Double-cuff nerve monitoring tracheal cannula |
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