Patent Publication Number: US-2021177302-A1

Title: Auxiliary visible light rod for multisource end-expiratory co2 monitoring

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims the priority benefit of China application serial no. 201911266418.6, filed on Dec. 11, 2019. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification. 
     TECHNICAL FIELD 
     The present invention relates to the technical field of medical equipment, in particular to an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring. 
     BACKGROUND 
     Tracheal intubation is the most effective and reliable method for establishing an artificial airway, and it is also a necessary technique for general anesthesia and emergency resuscitation. 
     Traditional intubation method is to use direct laryngoscope intubation under direct vision, but the airway conditions of patients are very different. For patients with poor intubation conditions (such as small jaw, short thyromental distance, raised glottis, small opening, limited neck movement), direct laryngoscope intubation is often difficult. The failure rate of the first intubation is high, which requires repeated attempts, takes a long time, and causes patients secondary injuries. 
     Corresponding improvement solutions have been proposed in response to the above problems. For example, the position of the tracheal intubation in the body can be determined through the monitoring of multisource end-expiratory CO 2 , which can be easily adjusted and can also improve efficiency. However, this method is not perfect due to its technology, and although it can cooperate with the sensing device to monitor multisource end-expiratory CO 2 , it has a great dependence on the accuracy of the device. Besides, the deviation of the sensor position, the sensor&#39;s failure or disturbances in the data analysis system will have a negative impact on the operation, and there is a lack of intuitive and visible auxiliary methods. The existing light rods are portable, economical, and can solve most of the difficult intubation problems, but they also have disadvantages. For example: first, because of its lack of visibility, it can only rely on the light source to determine the location, and lack of direct observation of the internal environment; secondly, during the insertion and removal of the light rod, the friction with the airway is extremely prone to redness and inflammation when the patient&#39;s resistance is poor or the light rod&#39;s bacteria exceed the standard. 
     SUMMARY OF THE INVENTION 
     The purpose of the present invention is to provide an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring, which is capable of observing the inside of a patient&#39;s trachea during tracheal intubation and reducing the infection and discomfort caused by intubation given the shortcomings of the prior art. 
     To solve the above problems, the present invention provides an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring, which comprises: a handle, a pump body, a medicine compartment, and a rod body; one end of the handle is connected to the pump body, and the other end connected to the medicine compartment, a first button is provided on the handle; the pump body is connected to the rod body and an atomizing tube provided in the rod body; a second button is provided on the pump body; the medicine compartment comprises an inner cavity. The sidewall of one end of the inner cavity is provided with a thimble, thimble holes and a filter hole, and the sidewall of the other end of the inner cavity is provided with a through-hole. The through-hole is connected to one end of a transfer tube provided inside the handle, and the other end of the transfer tube is connected to the pump body; one end of the rod body is provided with a rod head, and a lamp and an atomizing head are provided in the rod head, and the lamp and the first button are electrically connected through an internal wire, and the atomizing head is connected to the atomizing tube. The circuit tube is connected to the outer wall of the rod body, one end of the wire provided in the circuit tube is connected to the display screen, and the other end of the wire extends into the rod head to be connected to the camera. The bracket includes a collar, a circular frame, a reset member, a first arc frame and a second arc frame; the bracket is sleeved on the rod body through a hole provided on the collar, and one end of the circular frame is connected to the collar, the other end of the circular frame is connected to the reset member, and the first arc frame and the second arc frame are respectively connected to the reset member. 
     Optionally, an illumination lamp is provided on the pump body; the illumination lamp is provided with an illumination lamp head and a third button. 
     Optionally, the medicine compartment is provided with a flip cover. 
     Optionally, the flip cover is provided with a buckle, and the sidewall of the medicine compartment is provided with a clamping groove matching with the buckle. 
     Optionally, the thimble is installed at the center point of the inner cavity. 
     Optionally, there are multiple and evenly opened thimble holes at the top of the thimble. 
     Optionally, the installation height of the lamp and the atomizing head are the same; the installation height of the camera is lower than the installation height of the lamp and the atomizing head. 
     Optionally, the pump body is connected to the atomizing tube through a flange. 
     Optionally, an end of the atomizing head is provided with a porous metal mesh. 
     The present invention provides an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring. When tracheal intubation is performed on a patient, the rod head is sent into the patient&#39;s trachea through the rod body, and the camera in the rod head and the display screen on the rod body connected to the rod are used to observe the internal environment of the trachea to avoid the difficulties caused by direct laryngoscope intubation. A thimble with a thimble hole is installed in the inner cavity of the medicine compartment so that after piercing the top of the bottled anti-inflammatory agent, it assists the anti-inflammatory agent to enter the pump body through the transfer tube; during the process of removing the light rod, the second button is pressed to trigger the pump body and the anti-inflammatory agent is sprayed into the patient&#39;s trachea through the atomizing tube via the atomizing head, so as to achieve the purpose of relieving and anti-inflammatory, and also reduce the probability of bacterial infection and the patient&#39;s discomfort. It can also be used to illuminate the oropharynx by a lamp. The present invention can effectively cooperate with tracheal intubation for CO 2  monitoring and positioning, and can effectively cooperate with the use of tracheal intubation so that the accuracy rate of tracheal intubation is high, the time consumption is short, and it is not easy to cause secondary damage to patients. During tracheal intubation for a patient, the stability of the rod body during the intubation can be improved by fixing the rod to the external sides of the patient&#39;s mouth or the jaw bracket, and the angle of the rod inserted into the patient&#39;s trachea can be adjusted during the intubation. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In order to explain the technical solutions in the embodiments of the present invention or the prior art more clearly, the drawings used in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. 
         FIG 1  is a schematic diagram of the overall structure of an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring according to an embodiment of the present invention; 
         FIG 2  is a schematic diagram of the internal structure of an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring according to an embodiment of the present invention; 
         FIG 3  is a schematic diagram of a medicine compartment of an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring according to an embodiment of the present invention; 
         FIG. 4  is a schematic side view of a medicine compartment of an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring according to an embodiment of the present invention; 
         FIG 5  is a schematic diagram of a rod head of an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring according to an embodiment of the present invention; 
         FIG 6  is a schematic view of a bracket of an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring according to an embodiment of the present invention. 
     
    
    
     DETAILED EMBODIMENTS 
     The specific embodiments of the present invention will be further described in detail below with examples and the accompanying drawings as reference. The following examples of the present invention herein are used to illustrate the present invention, but not intended to limit the scope of the present invention. 
     As shown in  FIG. 1  and  FIG. 2 , an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring provided by an embodiment of the present invention includes a handle  100 , a pump body  200 , a medicine compartment  300 , and a rod body  400 . One end of the handle  100  is connected to the pump body  200  and the other end is connected to the medicine compartment  300 . A first button  120  is provided on the handle  100 . The pump body  200  is connected to the rod body  400  and the atomizing tube  370  provided in the rod body  400 . A second button  210  is provided on the pump body  200 . In this embodiment, the pump body  200  is placed on the top of the left end of the handle  100 , and the bottom of the pump body  200  and the top of the left end of the handle  100  are fixedly connected by screws. The medicine compartment  300  is located on the right side of the handle  100 , and the right side wall of the handle  100  and the left side wall of the medicine compartment  300  are fixedly connected by screws. The first button  120  is located on the same side of the pump body  200  on the outer wall of the handle  100  and is fixedly connected to the handle  100  by screws. A second button  210  is provided on the right side wall of the pump body  200 . The rod body  400  is located on the left side of the pump body  200 . The right end of the rod body  400  is fixedly connected to the left side wall of the pump body  200  by screws. The right end of the atomizing tube  370  provided in the rod body  400  is fixedly connected to the output of the pump body  200  through a flange. 
     As shown in  FIG 1 ,  FIG. 3  and  FIG 4 , the medicine compartment  300  includes an inner cavity  320 . A thimble  330 , a thimble hole  340 , and a filter hole  350  are provided on the sidewall of one end of the inner cavity  320 ; a through-hole is provided on the sidewall of the other end, and the through-hole is connected to one end of a transfer tube  360  provided in the handle  100 . The other end of the transfer tube  360  is connected to the pump body  200 . In this embodiment, a thimble  330  is inserted into the right side wall of the inner cavity  320 , and a thimble hole  340  and a filter hole  350  are opened on the right side wall of the inner cavity  320 ; a through-hole is provided on the left side wall of the inner cavity  320 . The transfer tube  360  is disposed in the handle  100 , and one end thereof is inserted into a through-hole on the left side wall of the inner cavity  320 , and the other end thereof is fixedly connected to the input end at the bottom of the pump body  200 . 
     As shown in  FIG. 1 ,  FIG. 2  and  FIG. 5 , a rod head  500  is provided at one end of the rod body  400 . A lamp  510  and an atomizing head  520  are provided in the rod head  500 . The lamp  510  is electrically connected to the first button  120  through an internal line  130 , and the atomizing head  520  is connected to an atomizing tube  370 . In this embodiment, the left end of the rod body  400  and the rod head  500  are fixedly connected with screws. The lamp  510  and the atomizing head  520  are embedded inside the rod head  500 . The lamp  510  and the first button  120  are electrically connected through an inner wire  130  partially provided in the rod body  400 . The input end of the atomizing head  520  and the left end of the atomizing tube  370  are fixedly connected. 
     As shown in  FIG. 1 ,  FIG. 2  and  FIG. 5 , circuit tube  410  is connected to the outer wall of the rod body  400 . One end of the wire provided in the circuit tube  410  is connected to the display screen  420 , and the other end extends into the rod head  500  and is connected to the camera. In this embodiment, circuit tube  410  is plugged into the outer wall of the rod body  400 . One end of the wire in the circuit tube  410  is electrically connected to the external display screen  420 , and the other end enters the inside of the rod body  400  and extends to the top of the inner cavity of the rod head  500 , and a camera is electrically connected to the top. 
     As shown in  FIGS. 1 and 6 , the bracket  600  includes a collar  610 , a circular frame  620 , a reset member  630 , a first arc frame  640 , and a second arc frame  650 ; the bracket  600  is sleeved on the rod body  400  through a hole opened on the collar  610 . One end of the circular frame  620  is connected to the collar  610 , the other end of the circular frame  620  is connected to the reset member  630 , and the first arc frame  640  and the second arc frame  650  are respectively connected to the reset member  630 . In this embodiment, the collar  610  is integrally formed with the circular frame  620 , and the collar  610  is provided with a hole; a lower end of the circular frame  620  is fixedly connected with a bearing through a screw, and the return spring sleeved with the inner wall of the bearing constitutes a reset member  630 ; the upper ends of the first arc frame  640  and the second arc frame  650  are movably connected to the outer ring of the bearing, so that the first arc frame  640  and the second arc frame  650  rotate relatively to the connection with the bearing. Both ends of the return spring are fixedly connected to the first arc frame  640  and the second arc frame  650  respectively. A rubber plate is bonded to the inner side wall of the first arc frame  640  and the second arc frame  650 , and a rubber block  660  is bonded to the bottom thereof, and the rubber block  660  is a hard rubber plate with a non-slip pattern. 
     The structure of the reset member  630  is not specifically limited in the embodiment of the present invention, as long as the first arc frame  640  and the second arc frame  650  can be controlled by the reset member  630 , so that the first arc frame  640  and the second arc frame  650  can be locked and connected to the patient&#39;s face, and thereby the support and positioning function of the rod body  400  through the bracket  600  can be realized. 
     In this embodiment, the handle  100  is the part that the operator holds when using the device of the present invention; the inner cavity  320  in the medicine compartment  300  is used to store the anti-inflammatory medicine liquid; the anti-inflammatory medicine liquid in the inner cavity  320  is transmitted to the pump body  200 through the transfer tube  360 ; the pump body  200  is used to transmit the anti-inflammatory medicine liquid to the atomization tube head  520  via the atomization tube  370 ; the rod body  400  is used to receive the atomization tube  370 , the inner line  130  and a part of the circuit tube  410 , and to support and position the rod head  500 ; the rod head  500  is used to receive the lamp  510 , the atomizing head  520  and the camera. The first button  120  is used to control the switch of the lamp  510 ; the second button  210  is used to control the operation and stop of the pump body  200 . The stent  600  is sleeved on the rod body  400  and is used to increase the stability of the rod body  400  during tracheal intubation. 
     In one embodiment, as shown in  FIG. 1 ,  FIG. 2  and  FIG. 4 , the pump body  200  is provided with an illumination lamp  220 ; the illumination lamp  220  is provided with an illumination lamp head  240  and a third button  230 . The illumination lamp  220  is placed on the top of the pump body  200  and is fixedly connected to the pump body  200  by screws. An illumination lamp head  240  is screwed to the left side of the illumination lamp  220 . A third button  230  is embedded on the right side of the illumination lamp  220  for controlling the illumination lamp head  240  to be turned on and off. 
     In one embodiment, as shown in  FIG. 2 ,  FIG. 3  and  FIG. 4 , the medicine compartment  300  is provided with a flip cover  310 , the flip cover  310  is provided with a buckle, and the side wall of the medicine compartment  300  is provided with a groove matching with the buckle. The flip cover  310  is disposed at the open end on the right side of the medicine compartment  300 , and the flip cover  310  is movably connected to the medicine compartment  300  through a hinge. There is a buckle integrally formed on the left side of the flip cover  310 , and a clamping groove matching the buckle of the flip cover  310  is provided on the opening side wall of the medicine compartment  300 . Through the cooperation of the buckle and the clamping groove, the flap  310  can be closed and opened to the open end of the medicine compartment  300 . 
     In one embodiment, as shown in  FIG. 3  and  FIG. 4 , the thimble  330  is installed at the center point of the inner cavity  320 , and a plurality of thimble holes  340  are evenly opened at the top of the thimble  330 , so as to facilitate the penetration of the rubber seal cover of the anti-inflammatory medicinal solution bottle and guide the medicinal solution into the medicine compartment  300 . In this embodiment, the thimble  330  has a triangular shape, and the inner cavity  320  has a funnel shape, which are not specifically limited in this embodiment of the present invention. 
     In one embodiment, as shown in  FIG. 5 , in the rod head  500 , the installation height of the lamp  510  and the atomizing head  520  are the same, and the installation height of the camera is slightly lower than the installation height of the lamp  510  and the atomizing head  520 . Therefore, the camera does not block the lamp  510  and the atomizing head  520 . In order to obtain a clear image of a patient&#39;s trachea, the camera may be a high-definition camera, which is not specifically limited in the embodiment of the present invention. In order to improve the visual effect, the lamp  510  may be a high-brightness red light emitter, which is not specifically limited in the embodiment of the present invention. 
     In one embodiment, in order to effectively limit the lamp  510 , the atomizing head  520  and the camera, a circumferential inner wall of the rod head  500  is inlaid with a porous pad, and the top of the porous pad is provided with round holes matching the lamp  510 , the atomizing head  520  and the camera. 
     In one embodiment, in order to protect the position of the atomizing head  520 , a porous metal mesh is adhered to the output end of the atomizing head  520 . 
     In one embodiment, as shown in  FIG. 1 , the handle  100  is a cylinder, and the outer wall is provided with twill  110  to facilitate holding in use. 
     In one embodiment, in order to ensure the safety of the patient, the rod body  400 , the circuit tube  410 , and the rod head  500  may be made of medical-grade materials, which is not specifically limited in the embodiment of the present invention. 
     When the present invention is specifically used, firstly, the positions of the thyroid cartilage and the trachea of the patient are determined by observation. Then, open the flip cover  310  of the medicine compartment  300 , and use the thimble  330  on the side wall of the inner cavity  320  to pierce the rubber sealing plug of the anti-inflammatory medicine liquid, so that the medicine liquid enters the inner cavity  320  through the thimble hole  340  and/or the filter hole  350 , and passes through the transfer tube  360  connected to the inner cavity  320  to allow the medicinal solution to enter the pump body  200 . The anti-inflammatory medicinal solution may also be directly poured into the inner cavity  320  of the medicine compartment  300 . 
     Secondly, place a small cushion on the patient&#39;s neck to make the patient&#39;s head tilt back slightly to facilitate the patient&#39;s mouth opening. Then, pull the first arc frame  640  and the second arc frame  650  to make the first arc frame  640  and the second arc frame  650  unfolded and clamped on both sides of the patient&#39;s oral cavity or at the chin position, and the bracket  600  is clamped to the outside of the patient&#39;s oral cavity by means of the restoring force of a return spring connected to the first and second arc frames  640  and  650 . The rubber plate adhered to the inner wall of the first arc frame  640  and the second arc frame  650  and the rubber block  660  adhered to the bottom thereof will increase the friction force, so that the bracket  600  is more stably fixed to the patient&#39;s face, and the skin of patient can be protected. Next, gently lift the patient&#39;s lower jaw forward and upward to increase the distance between the patient&#39;s upper and lower incisors and create a free space for the insertion of the visible light rod. At this time, pressing the first button  120  turns on the lamp  510  in the rod head  500 , and pressing the third button  230  turns on the illumination lamp head  240  of the illumination lamp  220 , which is used to illuminate the patient&#39;s oropharynx during the intubation process to facilitate observation of the condition of the pharynx of the patient. During the use, it can be determined whether the lamp  510  and the illumination lamp head  240  need to be turned on at the same time according to the needs of the implementation. 
     Next, hold the handle  100  in a pen-style manner, and gently insert the rod body  400  of the visible light rod with the tracheal tube into the deep part of the patient&#39;s throat along the natural arc of the throat. At the same time, rotate the rod body  400  of the visible light rod by 15° to 20° clockwise until the bright spot of the lamp  510  in the head  500  appears at a deeper level than the thyroid cartilage, at the position of the gap between the trachea and the muscle; then gently rotate the rod body  400  counterclockwise (at this time, it is usually unable to rotate counterclockwise and will be blocked), and retract the rod body  400  of the visible light rod at the same time. When the resistance to rotation in the counterclockwise direction disappears, usually the light of the lamp  510  can illuminate the trachea instantly. At this time, maintain the current position of the rod  500 , and rotate it back and forth slightly clockwise and counterclockwise to find the best position of the light that illuminates the trachea, then gently forward the rod  400  by 2˜3 cm across the vocal cords, hold the position of the rod  400  with one&#39;s right hand, release the patient&#39;s jaw with one&#39;s left hand, hold the tracheal tube forward along the visible light rod into the trachea. Carefully observe the characteristics and location of the light spot formed by the lamp  510  on the neck and the distance to the thyroid cartilage and trachea, and adjust it dynamically to find the best position to illuminate the ventilation tube. At this time, the camera at the end of the circuit tube  410  in the rod head  500  can display the condition inside the trachea on the display screen  420  at that time, and can understand the internal condition of the patient&#39;s trachea more intuitively. 
     During the intubation, the bracket  600  sleeved on the rod  400  can provide support and positioning for the rod  400 , which not only improves the stability of the rod  400  during the intubation, but also facilitates the rod body during the intubation. The angle at which the  400  is inserted into the trachea of the patient is adjusted accordingly to improve the efficiency of intubation. 
     When exiting the light rod, hold the handle  100  to apply force in the opposite direction, and simultaneously press the second button  210  on the pump body  200 , so that the anti-inflammatory medicine liquid flows through the atomizing tube  370  through the pump body  200  and passes through the atomizing head  520  in rod head  500  to be sprayed into the corresponding part in the trachea of the patient, so that the inside of the trachea can be relieved and anti-inflammatory, and the probability of internal infection and the discomfort of the patient can be effectively reduced. Then, relieve the first arc frame  640  and the second arc frame  650  that are clipped to the sides of the patient&#39;s mouth or at the chin, the bracket  600  is removed from the patient&#39;s face. 
     The present invention provides an auxiliary visible light rod for multisource end-expiratory CO 2  monitoring. At the time of intubation for a patient, the rod head is sent to the patient&#39;s trachea through the rod body. The cameras in the rod head and the rod body are connected to the rod body. The upper display screen observes the inside of the trachea to avoid the difficulties caused by direct laryngoscope intubation. A thimble with thimble holes is installed in the inner cavity of the medicine compartment. After piercing the top of the bottled anti-inflammatory agent, the anti-inflammatory agent enters the pump body through the transfer tube; during the process of removing the light rod, press the second button to trigger the pump body and spray the anti-inflammatory agent into the patient&#39;s trachea through the atomizing tube, so as to relieve the anti-inflammatory purpose, and also reduce the probability of bacterial infection and the patient&#39;s discomfort. The oropharynx can also be illuminated by a lamp. The present invention can be used with tracheal intubation for CO 2  monitoring and positioning, and can effectively be used with tracheal intubation, so that the accuracy of tracheal intubation is high, the time is short, and it is not easy to cause side damage to patients. During tracheal intubation for a patient, the stability of the rod during the intubation can be improved by fixing the rod to the external sides of the patient&#39;s mouth or the jaw bracket, and the angle of the rod inserted into the patient&#39;s trachea can be adjusted during the intubation. 
     In the description of the present invention, it should be noted that the terms “installed”, “connected with”, and “connected to” should be understood in a broad sense unless otherwise specified and limited. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it also can be the internal connection of two components. For those of ordinary skill in the art, the specific meaning of the above terms in the invention can be understood in specific circumstances, and should not be understood as a limitation of the invention. 
     The above embodiments are only used to illustrate the present invention, but are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications, or equivalent replacements of the technical solutions of the present invention shall not depart from the spirit and scope of the technical solutions of the present invention, and shall all fall within the scope of the claims of the present invention. 
     It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be the limiting of the exemplary embodiments according to the present application. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” or “includes” when used in this specification, specify the presence of stated features, steps, operations, elements, components and/or combinations thereof. 
     In the present invention, terms such as “up”, “down”, “left”, “right”, “front”, “rear”, “vertical”, “horizontal”, “side”, “bottom” that indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the Figures, and is only a relational term determined for the convenience of describing the structural relationship of each component or element of the present invention, and does not specifically refer to any component or element in the present invention, and should not be understood as the limiting of the present invention. 
     The above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.