Disposable visual guide bougie of difficult glottis upper airway trachea cannula
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a visual guide bougie for a disposable difficult glottis upper airway tracheal cannula.
Background
A difficult airway refers to an anesthesiologist trained in standardization, encountering a clinical state that can be expected and unexpected, including but not limited to difficult mask ventilation, difficult laryngoscope exposure, difficult supraglottic airways, difficult intubation, difficult extubation, and difficult invasive airways.
The main scheme for solving the difficult airway trachea cannula at present is a waking trachea cannula, which means that a patient receives the trachea cannula under the conditions of waking state and keeping spontaneous breathing, wherein common tools for the waking trachea cannula are a video laryngoscope, a soft mirror, various conduit cores and a bougie. Although the existing tool can effectively assist in completing the awake trachea cannula, failure rates exist, and particularly the failure rate of the first cannula is high. The study of Brian E.driver and the like shows that although the video laryngoscope combined conduit core and bougie can obviously improve the first intubation success rate of a patient with trachea intubation, the conduit core and bougie auxiliary tool is made of a plastic polymer (low density polyethylene) at present, the whole conduit core and bougie is softer, and the application of the conduit core and bougie is limited in difficult trachea intubation with certain anatomical and pathological abnormalities. Classical bougies are too flexible and their approach angle typically results in bending of the bougie tip into the glottis when using the bougie as a guide. Subsequent placement of the endotracheal tube can be difficult because the endotracheal tube tip encounters resistance at the level of the glottic junction, thereby folding the angle, and requires rotation or twisting of the endotracheal tube and increased intubation force to access the glottic opening (as shown in figure 6 a). The study also indicated that ideally, the axis of the bougie should be parallel to the tracheal main axis (as shown in figure 6B).
When the patient needs to be subjected to tracheal intubation under the guidance of the bougie, the bougie is firstly inserted into the trachea of the patient, the tracheal catheter is sleeved at the distal end of the bougie and guided into the trachea, the existing bougie is soft and also has a metal texture, the soft bougie is easy to be folded at the glottis of the patient, and when the hard bougie is used, the tracheal catheter cannot be sleeved at the incisors of the patient due to insufficient bending of the guide wire. For the cases where the epiglottis is not lifted due to anatomical abnormalities or diseases, the glottis is covered, and the clinical practice is to insert the tracheal tube blindly under the epiglottis, the success rate of intubation is reduced if the glottis cannot be seen.
Therefore, there is a need to provide a new visual guide bougie for a disposable difficult supraglottic airway endotracheal tube that solves the above mentioned technical problems.
Disclosure of utility model
The utility model solves the technical problems of providing a disposable visual guide bougie for a trachea cannula of an upper airway of a glottis, solving the problems of insufficient length of a trachea cannula guide wire, too soft of a bronchoscope, too thick of a hard scope and poor visual field of bleeding of an airway in the existing difficult airway treatment technology, and the existing guide wire is soft as a whole, not partitioned and not moderate in hardness, and provides a solution for complex difficult airway cannulas such as incapacitation of the glottis and fracture of the trachea.
The visual guide bougie for the disposable difficult glottis upper airway tracheal intubation comprises a first PVC hose, a second PVC hose, an aluminum inner core, a connector and a rubber sleeve, wherein one end of the second PVC hose is fixedly connected with the first PVC hose, the aluminum inner core is fixed in the first PVC hose, the rubber sleeve is arranged on the side wall of the connector, a clamping groove is formed in the aluminum inner core, the rubber sleeve is clamped in the clamping groove, and a camera and an illuminating lamp are arranged on the side wall of the connector.
Preferably, the side wall of the connector is provided with a first electric wire and a second electric wire respectively, the first electric wire is electrically connected with the camera, and the second electric wire is electrically connected with the illuminating lamp.
Preferably, the side walls and one end of the first PVC hose and the aluminum inner core are both arc-shaped structures.
Preferably, the length of the first PVC hose is 340 mm and the length of the second PVC hose is 360 mm.
Preferably, the first PVC hose and the second PVC hose are hollow, and the first wire and the second wire penetrate through the first PVC hose and the inside of the aluminum core.
Preferably, the outer diameters of the first PVC hose and the second PVC hose are 2.7-5 mm, the inner diameter of the second PVC hose is not less than 2.2 mm, and the inner diameter of the aluminum inner core is 1.5-3 mm.
Compared with the related art, the visual guide bougie for the disposable difficult glottis upper airway tracheal cannula has the following beneficial effects:
The utility model provides a disposable visual guide bougie for a difficult glottis upper airway tracheal cannula, which consists of a first PVC hose and a second PVC hose, wherein an aluminum inner core is arranged in the first PVC hose, so that the hardness of the first PVC hose is increased, sufficient supporting force is provided during cannula insertion, the bending of a guide wire during tracheal cannula insertion is avoided, the second PVC hose has good softness, sufficient flexibility is provided during tracheal cannula sleeving, and the problem that the tracheal cannula cannot be sleeved at a incisor due to insufficient bending of the guide wire is solved. The utility model discloses a camera, including aluminium system inner core, camera, light, camera, upper and lower trachea, the one end block of aluminium system inner core the joint, the lateral wall of joint is installed the camera with the light, the light is for the camera is shot and is provided the light source, through the camera realizes visual function, can not pick up the epiglottis to the higher laryngoscope of larynx, the great oppression epiglottis of cyst makes its glottis not expose, the difficult air flue on the glottis that neck activity limited air flue can not expose, visual function can observe the tissue condition (tumour occupation, hemorrhage, stenosis etc.) on the glottis, ensure the reliability of trachea cannula, to long-term trachea cannula, implement the difficult air flue under the glottis such as narrow scar hyperplasia of trachea under the glottis that the tracheotomy leads to, visual bougies also can observe, reduce tracheal catheter insertion failure or the emergence of interim urgent change tracheal catheter, the first intubate success rate of difficult air flue has been improved, the tracheotomy has been avoided to a certain extent. When the visual function is not needed, the connector is pulled out of the aluminum inner core, the aluminum inner core is hollow, and the tail end of the second PVC hose can be used for oxygen therapy or medicine injection, and can be connected with end-of-breath carbon dioxide monitoring equipment. After the bougie is connected with end-of-breath carbon dioxide monitoring equipment, a spontaneous breathing blind tracheal intubation can be reserved. In addition, the device is suitable for the tube replacement operation of a long-term intubated patient, avoids the airway damage caused by repeated laryngoscope placement, can control the airway in the tube replacement process, and is one option for safely managing the airway.
Drawings
FIG. 1 is a schematic view of a visual guide bougie for a disposable difficult supraglottic airway endotracheal tube according to one preferred embodiment of the present utility model;
FIG. 2 is a schematic view of the internal structure of the first PVC hose shown in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure at A shown in FIG. 2;
FIG. 4 is an enlarged schematic view of the structure at B shown in FIG. 2;
FIG. 5 is a view of the joint structure of FIG. 4;
fig. 6 is a schematic view of an upper airway tube.
In the figure, the reference numerals are 1, a first PVC hose, 2, a second PVC hose, 3, a connector, 4, a camera, 5, a first electric wire, 6, a second electric wire, 7, an aluminum inner core, 8, an illuminating lamp, 9, a rubber sleeve, 10 and a clamping groove.
Detailed Description
The utility model will be further described with reference to the drawings and embodiments.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 in combination. Fig. 1 is a schematic structural view of a preferred embodiment of a visual guiding bougie for a disposable difficult glottic upper airway tracheal cannula, fig. 2 is a schematic structural view of the interior of a first PVC hose shown in fig. 1, fig. 3 is an enlarged schematic structural view of a portion a shown in fig. 2, fig. 4 is an enlarged schematic structural view of a portion B shown in fig. 2, and fig. 5 is a structural view of a joint shown in fig. 4. A disposable visual guide bougie for a difficult glottic upper airway tracheal intubation comprises a first PVC hose 1, a second PVC hose 2, an aluminum inner core 7, a connector 3 and a rubber sleeve 9, wherein one end of the second PVC hose 2 is fixedly connected with the first PVC hose 1, the aluminum inner core 7 is fixed in the first PVC hose 1, a clamping groove 10 is formed in the aluminum inner core 7, the rubber sleeve 9 is clamped in the clamping groove 10, a camera 4 and a lighting lamp 8 are arranged on the side wall of the connector 3, when the connector 3 is connected, the first electric wire 5 and the second electric wire 6 penetrate through the aluminum inner core 7 and the second PVC hose 2, the connector 3 is inserted into the aluminum inner core 7, the rubber sleeve 9 is driven to enter the aluminum inner core 7, and the rubber sleeve 9 is gradually deformed by extrusion and then gradually enters the clamping groove 10, so that the connector 3 is fixed at one end of the aluminum inner core 7.
The side wall of the connector 3 is respectively provided with a first electric wire 5 and a second electric wire 6, the first electric wire 5 is electrically connected with the camera 4, in order to facilitate the connection of the camera 4 with the display screen through the first electric wire 5, in the intubation process, the specific condition of the upper airway of a patient can be observed, the second electric wire 6 is electrically connected with the illuminating lamp 8, in order to facilitate the connection of the second electric wire 6 with a power supply, the illuminating lamp 8 is provided with the power supply to enable the operation of the illuminating lamp to illuminate the upper airway.
The side walls and one end of the first PVC hose 1 and the aluminum inner core 7 are of arc-shaped structures. To facilitate the insertion of the first PVC hose 1 and the aluminum core 7 into the patient's trachea, the first PVC hose 1 is wrapped around one end of the aluminum core 7, and also to prevent the aluminum core 7 from excessively hard stabbing the respiratory tract.
The length of the first PVC hose 1 is 340 mm, and the length of the second PVC hose 2 is 360 mm.
The first PVC hose 1 and the second PVC hose 2 are hollow, and the first electric wire 5 and the second electric wire 6 penetrate through the first PVC hose 1 and the inside of the aluminum inner core 7, so that the first electric wire 5 and the second electric wire 6 are connected with the joint 3.
The outer diameters of the first PVC hose 1 and the second PVC hose 2 are 2.7-5 mm, the inner diameter of the second PVC hose 2 is not less than 2.2 mm, the inner diameter of the aluminum inner core 7 is 1.5-3 mm, the inner diameter refers to the diameter of the inner cross section, the outer diameter refers to the maximum diameter of the cross section of the tube body, and products with various sizes can be produced according to practical requirements in the size range.
The disposable difficult upper glottis airway tracheal intubation visual guide bougie has the working principle that the disposable difficult upper glottis airway tracheal intubation visual guide bougie consists of a first PVC hose 1 and a second PVC hose 2, wherein an aluminum inner core 7 which is internally provided with a connector 3 is arranged in the first PVC hose 1, the hardness of the first PVC hose 1 is increased, sufficient supporting force is provided during intubation, the bougie is prevented from being folded during tracheal catheter insertion, the second PVC hose 2 has good softness, sufficient flexibility is provided during tracheal catheter sleeving, and the problem that the tracheal catheter cannot be sleeved at the incisors due to insufficient bougie bending is avoided.
When handling difficult airway intubate, especially patient's glottis can not fix a position and the difficult airways such as narrow scar hyperplasia of glottis that the trachea fracture, long-term trachea intubate lead to, the one end block of aluminium system inner core 7 connect 3, connect 3's lateral wall installation camera 4 with light 8, light 8 does camera 4 shoots and provides the light source, through camera 4 realizes visual function, can not pick up the epiglottis to the higher laryngoscope of larynx, the great oppression epiglottis of cyst makes its glottis not expose, and difficult airways on the glottis that limited airway of neck activity can be observed to visual function (tumour occupation, hemorrhage, stenosis etc.) on the glottis, ensure the reliability of trachea intubate, to the long-term trachea intubate, implement the difficult airways of glottis lower trachea narrow scar hyperplasia that the trachea that the tracheotomy leads to, visual bougies also can observe, has reduced the tracheal catheter and has inserted the failure or the emergence of interim urgent tracheal catheter has improved difficult intubated success rate for a certain degree of the trachea. The technology has low requirements on glottis exposure and definition, is simple and convenient to operate, and greatly saves difficult airway intubation time. When the visual function is not needed, the first electric wire 5 and the second electric wire 6 are pulled, the rubber sleeve 9 is pulled out from the groove 10, the joint 3 is gradually pulled out from the aluminum inner core 7 and the second PVC hose 2, the aluminum inner core 7 is hollow, and then oxygen or medicine can be infused into the tail end of the second PVC2, and the device for monitoring carbon dioxide at the end of breath can be connected. After the bougie is connected with end-of-breath carbon dioxide monitoring equipment, a spontaneous breathing blind tracheal intubation can be reserved. In addition, the technology does not need to be completed with the aid of a visual laryngoscope for the long-term intubation patient tube replacement operation, when tube replacement is performed, the first PVC hose 1 is lifted, the tail end of an endotracheal tube in a patient body penetrates through the aluminum inner core 7 and the second PVC hose 2, then the bougie enters into the trachea of the patient along the endotracheal tube in the patient body, and then the endotracheal tube to be replaced is pulled out from the bougie and then is placed into a new endotracheal tube, so that tube replacement operation is easily completed. The whole tube exchanging process can control the airway of the patient, and is an option for safely managing the difficult airway.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.