CN118403262A - Device for guiding an endotracheal tube - Google Patents

Abstract

The invention discloses a device for guiding an endotracheal tube, comprising a shaft and a handle, the handle being configured to be detachably connected to the shaft; the shaft includes a distal shaft portion, a proximal shaft portion, and a control wire; the proximal shaft portion includes a proximal shaft portion body, a tip portion, the distal shaft portion and the proximal shaft portion being joined by a joining connection, the control wire being at least partially disposed within the proximal shaft portion and configured to deform the tip portion; the proximal shaft portion is a hollow tube body, further comprising: an optical capture device configured to fit within the tip end face cavity; a first contact disposed on the shaft, the first contact being connected to a first cable connected to the optical capture device; a second contact arranged in the handle and connected with a second cable connected with the display device; after the shaft is arranged in the handle, the first contact is connected with the second contact, so that the first cable is communicated with the second cable, and the optical capturing device is powered to transmit images to the display device. The invention realizes the insertion visualization of the guiding device.

Description

Device for guiding an endotracheal tube

Technical Field

The invention relates to the technical field of endotracheal tube guiding devices, in particular to a device for guiding an endotracheal tube.

Background

Many surgical procedures are typically performed while the patient is under general anesthesia. During these procedures, patients are given a series of medications to cause loss of consciousness and muscle paralysis. Drugs that cause loss of consciousness and muscle paralysis also interfere with the respiratory ability of the patient. Thus, patients often undergo tracheal intubation during these procedures so that the patient may be connected to an external ventilator or breathing circuit. Patients in non-surgical situations where increased oxygen delivery is desired may also be intubated. In other cases, an endotracheal tube may also be used.

During endotracheal intubation, an endotracheal tube is placed in the patient's airway. Typically, an endotracheal tube is advanced through the patient's nose or mouth into the patient's trachea, then the endotracheal tube is connected to an external ventilator or breathing circuit, and the ventilator is then able to breathe for the patient, delivering oxygen to the patient's lungs.

The vocal cords of the patient and the space therebetween form the entrance to the trachea, these structures also being called glottis. The glottis is visible from the pharynx and accessible through the pharynx. The pharynx is the portion of the upper airway that is behind the patient's mouth and below the patient's nasal cavity. The mouth and nasal cavities meet at the pharynx. In addition, the esophagus and the glottis can be accessed through the pharynx. During the intubation procedure, the endotracheal tube must be carefully advanced through the patient's pharynx and placed into the trachea via the vocal cords. Furthermore, it is critical that the endotracheal tube be placed at the proper depth when it is placed in the trachea. If it is placed in a shallower position in the trachea, it may fall off. If placed too deep, only one lung may be ventilated, resulting in poor oxygen delivery to the blood or over-ventilation of the ventilated lung, and under-ventilation of the un-ventilated lung. All of which may lead to injury or death of the patient.

The intubation process can interfere with the patient's breathing and thus the ability to independently deliver oxygen to the body. Tissue damage may occur if the patient is hypoxic for more than two to three minutes, which may lead to death or permanent brain damage. Therefore, the intubation procedure must be performed quickly and accurately.

To address the foregoing problems, CN111936191 a discloses an introducer for use with an endotracheal tube system, comprising a shaft comprising: a proximal shaft portion; a distal shaft portion including a distal tip portion extending from the shaft portion, the shaft including a plurality of qualitative depth assessment bands, each depth assessment band having a visually different color or pattern than an adjacent depth assessment band, and the tip having a rounded shape and a closed end; and a control wire disposed at least partially within both the distal shaft portion and the proximal shaft portion and configured to maintain the tip portion of the proximal shaft portion in a curved configuration; a handle detachably connected to the proximal shaft section. The introducer allows a medical professional to quickly, accurately and safely properly position an endotracheal tube in a normal or difficult airway, as well as to quickly, accurately and safely properly perform an endotracheal tube changing procedure.

CN111936191 a discloses an introducer, which facilitates the operation of inserting and replacing an endotracheal tube, however, since the endotracheal tube is pushed into the trachea of a patient through the nose or mouth of the patient, in the pushing and inserting process, in order to perform accurate insertion operation, the insertion position is accurate and meets the requirements, and a visual environment must be provided for the operation, for example, a camera and a light source collect real-time images of the insertion environment, so that an operator can accurately perform the insertion operation in a visual state. However, the guiding device disclosed in the prior art generally does not have an integrated image capturing device, and the insertion operation of such guiding device requires a separate image capturing device to cooperate with the operation in order to perform the visualization operation. Another medical instrument, such as a laryngoscope, is typically used to capture images.

Therefore, a guiding device of an integrated image pickup device is developed to solve the above-mentioned drawbacks or problems, so that the guiding device is more convenient to perform the insertion operation, and has practical needs and corresponding meanings.

Disclosure of Invention

The invention aims to overcome the defects and the shortcomings of the prior art and provides a device for guiding an endotracheal tube, which is integrated with an optical capturing device, and is convenient for a doctor to insert the guiding device.

A device for guiding an endotracheal tube comprising a shaft and a handle configured to be removably connected to the shaft; the shaft includes a distal shaft portion, a proximal shaft portion, and a control wire; the distal shaft portion and the proximal shaft portion being joined by a joining connection and allowing adjustment of a distance between the distal shaft portion and the proximal shaft portion, the proximal shaft portion comprising a proximal shaft portion body and a tip portion, the control wire being disposed at least partially within the proximal shaft portion and the distal shaft portion and being configured to deform the tip portion; the proximal shaft portion is a hollow tube, and the device for guiding an endotracheal tube further comprises:

An optical capture device configured to fit within an end face cavity of the tip portion;

A first contact connected to a first cable connected to the optical capturing device, disposed on the shaft, the first contact moving synchronously with the proximal shaft section when the proximal shaft section is separated from the distal shaft section;

A second contact connected to a second cable connected to a display device, disposed on a limit connection mechanism of the shaft in the handle, to move in synchronization with the proximal shaft section;

After the shaft is arranged in the handle, the first contact is connected with the second contact, so that the first cable is communicated with the second cable to supply power for the optical capturing device, and the optical capturing device transmits image data to the display device for display.

Optionally, the first contact is connected to a flexible circuit board connected to the first cable, and is connected to the first cable through the flexible circuit board.

Optionally, the coupling connector includes a proximal shaft connection portion connected to a proximal shaft portion and a distal shaft connection portion connected to a distal shaft portion, the first contact being disposed on the proximal shaft connection portion.

Optionally, the limiting connection mechanism includes a proximal shaft limiting connection mechanism, the second contact is assembled on the proximal shaft limiting connection mechanism, the proximal shaft limiting connection mechanism can slide in the handle, and the proximal shaft connection portion is matched with the proximal shaft limiting connection mechanism.

Optionally, the proximal shaft limit connection mechanism is installed inside a mounting frame arranged in the handle and is in sliding fit with the mounting frame.

Optionally, the first cable is disposed within a hollow cavity of the proximal shaft portion.

Optionally, a bend retaining mechanism is included, the bend retaining mechanism being housed within the hollow cavity of the proximal shaft section and configured to retain the tip section in a predetermined bent configuration in an original state.

Optionally, the bending holding mechanism includes a spring having one end connected to the distal end portion and the other end connected to a distal end side of the proximal shaft section main body.

Optionally, the distal portion comprises a bellows and the proximal shaft portion body comprises a hypotube, the hypotube and the bellows being connected by a hollow connecting post, the hypotube and the hypotube being internal, with a continuous surface disposed external to them wrapping them inside.

Optionally, the handle has a grip, the grip including a battery compartment in which a battery for power is placed.

The device for guiding the endotracheal tube (hereinafter referred to as guiding device) is characterized in that the optical capturing device is integrated in the end face of the tail end part of the proximal shaft part, the first contact is arranged on the shaft, the second contact is arranged in the handle, and the handle is detachably connected with the shaft, so that when the shaft is separated from the handle, the cable (such as a data wire and a power wire) of the optical capturing device is disconnected, and when the shaft is combined with the handle, the cable of the optical capturing device is communicated, so that the operation and the use of a doctor are facilitated, in the process of inserting the guiding device, an image of the glottic position of a patient can be captured through the optical capturing device, the image is displayed through the display device, the display screen is observed in real time by the doctor, a visual insertion picture is provided for the operation of the doctor, and the doctor can conveniently insert the operation of the guiding device; after the insertion operation is completed, the handle is removed, and only the shaft of the guiding device is kept in the patient, at this time, the endotracheal tube to be guided is inserted from the distal end of the distal shaft portion of the shaft of the guiding device and moves along the shaft body of the shaft until entering the patient, and after reaching the predetermined position in the human body, the insertion guide of the endotracheal tube is completed.

According to the guiding device, the handle can be removed, and after the handle is removed, the cables (such as the data wire and the power wire) of the optical capturing device can be disconnected, so that after a doctor observes the guiding device through a visual image and places the guiding device in place at the sound position of a patient, when the endotracheal tube needs to be guided to be inserted, the cables are not exposed after the handle is removed, or the cables cannot be disconnected from the power supply device and the display device, so that the problem of influencing the insertion of the endotracheal tube is solved, the problem is equivalent to only reserving a shaft of one guiding device and no external interference influencing the insertion of the endotracheal tube, so that the endotracheal tube insertion is facilitated, and the guiding device is convenient to place due to the fact that the optical capturing device is integrated.

Drawings

Fig. 1 is a schematic front view of an apparatus for guiding an endotracheal tube according to the present invention.

Fig. 2 is a schematic side view of an apparatus for guiding an endotracheal tube according to the present invention.

Fig. 3 is an exploded view of the device for guiding an endotracheal tube of the present invention.

FIG. 4 is a schematic view of the handle of the present invention in a first position after being coupled to a shaft.

FIG. 5 is a schematic view of the handle of the present invention in a second position after being coupled to a shaft.

Fig. 6 is a schematic view of a first contact arrangement on a bond connector of the present invention.

Fig. 7 is a schematic diagram showing connection between a flexible circuit board with a first contact and a first cable according to the present invention.

Fig. 8 is a schematic view of the arrangement of the second contact of the present invention on the proximal shaft stop connection.

Fig. 9 is a schematic view of the connection of the proximal shaft stop connection of the present invention to the mounting bracket.

Fig. 10 is a schematic cross-sectional view of the proximal shaft stop connection of the present invention after connection to a mounting bracket.

FIG. 11 is a schematic view of the proximal shaft stop connection of the present invention after removal from the mounting bracket.

Fig. 12 is a schematic view of the matrix of the proximal shaft portion formed by the connection of the hypotube and the serpentine tube of the present invention.

Fig. 13 is a schematic view of the interior of the proximal shaft section of the present invention.

Fig. 14 is a schematic view showing bending deformation of the distal end portion of the proximal shaft section of the present invention.

Fig. 15 is a schematic view of a bend retention mechanism inside the proximal shaft section of the present invention.

FIG. 16 is a schematic view of the distal shaft section of the shaft of the present invention after exposing the internal support bars.

FIG. 17 is a schematic view of a bond joint of the present invention.

Detailed Description

The invention is described in further detail below with reference to the drawings and the specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

One device for guiding an endotracheal tube according to embodiments of the present invention relates to a bougie that may be used with an endotracheal tube system, also known as a guide device for a tube or stylet, introducer or endotracheal tube, which is an elongate bougie for guiding the placement of an endotracheal tube or another device.

In some cases, the endotracheal tube of the intubated patient needs to be replaced with a new endotracheal tube. The method used for this replacement procedure involves placing a catheter or stylet through an existing endotracheal tube until the tip of the catheter or stylet enters the trachea. The existing endotracheal tube is then removed over the catheter or stylet while leaving the catheter or stylet in place. A new endotracheal tube is then placed over the catheter or stylet. A new endotracheal tube is then advanced over the catheter or stylet until the tip of the new endotracheal tube is properly placed in the trachea. The catheter or stylet is then removed from the patient. The new endotracheal tube is then connected to an external ventilator or breathing circuit. The ventilator is then able to breathe for the patient, thereby delivering oxygen to the patient's lungs.

Many potential complications may occur during an endotracheal tube replacement procedure. For example, the tip of a catheter or stylet can cause trauma to the trachea and lungs, which can cause injury or death to the patient. Poor depth control of the tip of a catheter or stylet during an endotracheal tube replacement procedure is a contributor to such trauma to the trachea or lungs. Another additional potential complication is the inadvertent removal of the tip of the replacement catheter or stylet from the trachea during an endotracheal tube replacement procedure. This may result in a new endotracheal tube not being entered into the trachea, leading to a failure of the endotracheal tube and injury or death to the patient.

In the above-mentioned tracheal intubation, in order to facilitate the insertion operation or control the insertion depth, and reduce the insertion damage to the patient, a visual device is generally used to provide an image or image of the insertion process, so as to perform a visual insertion operation, for example, in the prior art, in order to implement the insertion visualization, in particular, the insertion visualization of the guiding device, a separate device, such as a laryngoscope, is generally used to capture an image, the doctor captures the image through the laryngoscope, and observes the insertion process, so as to accurately insert the guiding device in place, and prevent injury to the patient, as disclosed in CN110022923a and CN 111936191.

As shown in fig. 1, a device for guiding an endotracheal tube according to an embodiment of the present invention includes a shaft 100 and a handle 200, the handle 200 being configured to be detachably connected to the shaft 100; the shaft 100 includes a distal shaft portion 120, a proximal shaft portion 110, and a control wire 160; the distal shaft portion and the proximal shaft portion are coupled by a coupling connection 140 and allow for adjustment of the distance between the distal shaft portion and the proximal shaft portion; the proximal shaft portion 110 includes a proximal shaft portion body 102 and a tip portion 101, the control wire 160 being disposed at least partially within the proximal and distal shaft portions and configured to deform the tip portion 101; the proximal shaft portion 102 is a hollow tube, the means for guiding an endotracheal tube further comprising:

an optical capturing device 130, the optical capturing device 130 being configured to fit within an end face cavity of the tip portion 101;

a first contact 151 disposed on the shaft 100, the first contact 151 moving synchronously with the proximal shaft portion when the proximal portion is separated from the distal shaft portion, the first contact 151 being connected to a first cable 152 connected to the optical capturing device 130;

A second contact 272 disposed on a limit connection mechanism of the shaft in the handle 200, the second contact 272 being connected with a second cable 273 connected to the display device 300, which moves in synchronization with the proximal shaft section when the proximal section is separated from the distal shaft section;

After the shaft 100 is installed in the handle 200 and is limited and fixed by the limiting connection mechanism, the first contact 151 is connected with the second contact 272, so that the first cable 152 is connected with the second cable 273 to supply power to the optical capturing device 130, and the optical capturing device 130 can transmit image data to the display device 300 for displaying.

In the present application, the shaft 100 may be coupled to the handle 200, and the handle 200 may be positioned at a midpoint of the shaft 100, or at a position sufficiently far from the distal end so that the guide may be placed at a sufficient depth within the patient. The handle 200 is configured to articulate the distal end portion 101 of the guide device of the present application after positioning in a patient to deform or bend the distal end portion 101 of the proximal shaft portion 110, the control wire 160 being configured to deform the distal end portion 101 of the proximal shaft portion 110 when the control wire 160 is pulled in the distal direction of the proximal shaft portion 110. In some embodiments, the control wire 160 is connected at a distal end to the distal shaft portion 120 and at a proximal end to the tip portion 101 of the proximal shaft portion 110.

The first contact is arranged on the shaft, the second contact is arranged on the limiting connection mechanism of the shaft in the handle, the handle is detachably connected with the shaft, when the shaft is separated from the handle, the cables (such as a data wire and a power wire) of the optical capturing device are disconnected, when the shaft is combined with the handle, the cables (such as the data wire and the power wire) of the optical capturing device are connected, the connection of the data wire and the power wire is realized, the operation and the use of a doctor are facilitated, in the process of inserting the guiding device, the image of the glottic position of a patient is captured through the optical capturing device, the display screen is displayed through the display device, the doctor observes the display screen in real time, a visual inserting picture is provided for the operation of the doctor, and the operation of inserting the guiding device is facilitated for the doctor; and after the insertion operation is completed, the handle is taken down, only the guiding device is kept in the patient, at the moment, the endotracheal tube to be guided is inserted from the distal end of the distal shaft part of the guiding device and moves along the shaft body of the shaft until the endotracheal tube enters the patient, and after reaching the preset position in the human body, the insertion and guiding of the endotracheal tube are completed.

In some embodiments, the first contact 151 is connected to the flexible circuit board 150, the flexible circuit board 150 is connected to the first cable 152, the first cable 152 is connected to the optical capturing device 130, and after the data line and the power line of the cable are connected, the optical capturing device 130 can transmit the image data to the display device 300 for displaying, and the flexible circuit board 150 is disposed on the shaft 100. In some embodiments, is disposed on the coupling connection 140 of the shaft 100.

In some embodiments, the coupling connector 140 includes a proximal shaft connecting portion 141 and a distal shaft connecting portion 142, which are correspondingly connected and fixed to the proximal shaft main body 102 and the distal shaft main body, and the two parts of the coupling connector 140 are contacted and abutted against each other in an initial state, and can be separated under the action of opposite external pulling force, and can be automatically reset to the initial state without external pulling force, preferably, the flexible circuit board 150 is disposed on the proximal shaft connecting portion 141, and the first contact 151 connected thereto is exposed to facilitate connection with the second contact 272. When the proximal portion 110 performs a separation motion with respect to the distal shaft portion 120, the first contact 151 and the proximal shaft connecting portion 141 move in the same direction in synchronization with the proximal shaft portion 110.

In some embodiments, the distal shaft part 120 includes a strip-shaped substrate 121 with a reinforcing function, the substrate 121 is in a strip-shaped and strip-shaped structure, and passes through the distal shaft connecting part 142 of the coupling connector 140 and enters the inside of the proximal shaft connecting part 141, as shown in fig. 17, the substrate 121 and the distal shaft connecting part 142 are fixed by a pin 146, and are formed integrally, the distal shaft connecting part 142 is fixed with the substrate 121, the proximal shaft connecting part 141 is radially provided with a limiting pin 147, and a sliding cavity is arranged in the proximal shaft connecting part 141 and can slide along the substrate 121, and the limiting pin 147 can relatively move with the distal shaft connecting part 142 to limit the displacement.

In some embodiments, the second contact 272 fits over a proximal shaft limit link 270 inside the handle 200, the proximal shaft limit link 270 being slidable in the handle 200; the proximal shaft limit connection mechanism 270 is matched with the proximal shaft connection portion 141 of the coupling connection member 140, after the proximal shaft connection portion 141 of the coupling connection member 140 is mounted on the proximal shaft limit connection mechanism 270 to limit, the first contact 151 and the second contact 272 are correspondingly contacted and electrically connected, at this time, the cable of the optical capturing device is connected to the display device, and can transmit signals or data to the display device and supply power to the display device. In some embodiments, the proximal shaft limit connection mechanism 270 is provided with a limit mechanism 271, which is arranged at intervals and protrudes from the surface of the proximal shaft limit connection mechanism 270, and is located at two sides of the second contact 272, and is matched with the limit groove 143 on the outer surface of the proximal shaft connection portion 141, and after the proximal shaft connection portion 141 is installed, the proximal shaft connection portion 141 has only a degree of freedom in a vertical direction relative to the proximal shaft limit connection mechanism 270, so that after limiting, the proximal shaft limit connection mechanism 270 and the proximal shaft portion can move synchronously, and in the displacement process, the electrical contact connection between the first contact and the second contact is always ensured, and the disconnection is avoided.

In some embodiments, the handle 200 has a distal shaft limit connection mechanism 260 disposed therein for limiting the distal shaft connection portion 142, and the distal shaft limit connection mechanism 260 includes a slot with two open ends, and the inner wall of the slot has limit protrusions (not shown) for engaging with the concave surfaces 145 on two side surfaces of the distal shaft connection portion 142, limiting the distal shaft connection portion 142 from moving forward synchronously with the proximal shaft connection portion 142 under the operation of the handle, and under the limitation, the distal shaft connection portion 142 is kept in a fixed position, and the distal shaft limit mechanism 260 may also employ other limit structures, such as a pin-hole engaged limit structure, etc., which are not limited thereto, but only an alternative example.

Because the proximal shaft limit connecting mechanism and the distal shaft limit connecting mechanism are respectively provided with the limit convex parts correspondingly matched with the combined connecting piece, after the combined connecting piece is arranged in the handle, the proximal shaft connecting part 141 and the distal shaft connecting part 142 of the combined connecting piece are respectively limited by the proximal shaft limit connecting mechanism and the distal shaft limit connecting mechanism, in the inserting operation process, the distal shaft connecting part 142 is limited and kept at the installation fixed position by the distal shaft limit connecting mechanism, and the proximal shaft connecting part 141 and the proximal shaft limit connecting mechanism synchronously move forwards under the action of the trigger, so that the contact point of the first circuit board and the second circuit board is disconnected in the inserting operation process, and the contact state is always kept without influencing the visual inserting process.

In some embodiments, the handle has a proximal shaft body stop mechanism 250 inside, which is a slot-like structure with two open ends for stopping the proximal shaft body 110 in the left-right direction.

In some embodiments, the proximal shaft stop link 270 is mounted inside a mounting bracket 280 disposed within the handle, in sliding engagement with the mounting bracket 280, to effect sliding of the proximal shaft stop link 270 within the handle. The mounting frame 280 is fixed in the handle and may be a rectangular frame, and the inside of the mounting frame 280 may be matched with the protrusions 274 on two opposite sides of the proximal shaft limit connection mechanism 270 through a chute structure 281 to form a sliding friction structure, so as to form a sliding fit structure, or other sliding fit structures may be adopted, which is not limited to this, and the above is only an alternative embodiment.

In some embodiments, the first contact is a planar contact, and the second contact is a contact with a bump structure, so that contact conduction between the first contact and the second contact can be facilitated, and poor contact is prevented.

In the present application, the optical capturing apparatus is an apparatus for capturing an image. In some embodiments, the optical capture device is a camera or an image capture sensor (such as a charge coupled device or a complementary metal oxide semiconductor). In some embodiments, the optical capture device is a digital video camera. In other embodiments, the optical capture device is an optical fiber. In still other embodiments, the optical capture device is a mirror. Still other embodiments of the optical capturing device are possible, the light source illuminates the patient's glottis, and the optical capturing device captures an optical representation of the patient's glottis, such as an image, video, or light waves.

The optical capture device includes or is integrated with a light source, which is a device configured to emit or direct light toward the glottis. In some embodiments, the light source is configured to generate light. In other embodiments, the light source is configured to reflect light. Examples of such light sources include light emitting diodes, incandescent bulbs, optical fibers, reflectors, and the like.

The display device is configured to display video, images, light waves, or the like, captured by the optical capture device. In some embodiments, the display device includes a screen. In some embodiments, the display device is coupled to the second circuit board by a cable and electrically connected to the power module, such as a battery, by a power supply, and the display device may be powered by the battery through the second circuit board, after the first circuit board is contacted by contacts, to power the optical capturing device and its light source while receiving the image transmitted by the optical capturing device, in some embodiments, the optical capturing device may also be connected to the power module by a power supply line, directly powered by the power module, and connected to the display device by a data line only, for data transmission. In other embodiments, the display device is integrally formed with the handle. In some embodiments, the display device is arranged separately from a handle in which a cable, such as a power line, a data line, electrically connected to a second circuit board for connection of the display device is led out, and then connected to the display device through the led-out cable.

In some embodiments, the transmission of the data signal may be performed wirelessly, excluding the data line. For example, in some embodiments, video or images captured by an optical capture device are transmitted wirelessly to a display device, such as with a wireless signal transmission device for transmission of signals or images. In still other embodiments, the image captured by the optical capture device may also be transmitted to the display device by one or more mirrors.

In some embodiments, the display device is a liquid crystal display. In other embodiments, the display device is a light emitting diode display or cathode ray tube, or a touch display screen. In some embodiments, the display device is a surface of a mirror. Other embodiments of the display device are also possible. The display device is operative to receive signals indicative of an image captured by the optical capture device and to display the image.

In some embodiments, the proximal shaft portion is a hollow tube body integrally, the tube body is a hollow tube body, the arrangement of the cable of the optical capturing device is convenient, and after the cable is arranged in the lumen, the cable is hidden in the hollow cavity of the proximal shaft portion and is not exposed, so that the proximal shaft portion of the shaft for being inserted into a patient body does not influence the insertion operation, and the arrangement of the optical capturing device is convenient, for example, the optical capturing device is directly installed in a cavity of the terminal portion and then fixed, for example, the optical capturing device is fixed in an adhesive manner, the optical capturing device is not exposed and is integrated in the terminal portion and is not exposed, in some embodiments, the shape of the optical capturing device is a cylindrical shape, wherein, in some embodiments, the cross-section shape of the cavity of the end face of the terminal portion where the optical capturing device is placed is adapted to the shape of the optical capturing device, so that the optical capturing device in the cylindrical shape can be well fixed and cannot protrude from the end face of the terminal portion, and a hidden installation is formed.

In some embodiments, the proximal shaft portion 110 includes a continuous outer surface that externally encapsulates the proximal shaft portion's base tube, such as with a medical rubber material, and is preferably formed as one piece, and the distal shaft portion may also include a continuous outer surface that externally encapsulates the distal shaft portion 120's base 121, such as with a medical rubber material, and is preferably formed as one piece. In some embodiments, the distal portion 101 comprises a bellows 1011 or similar tube, a base tube disposed internally as a distal portion of the proximal shaft portion, and the proximal shaft portion body 102 comprises a hypotube 1021 or similar medical tube, a base tube disposed internally as a proximal shaft portion body of the proximal shaft portion, and a continuous surface disposed externally for wrapping.

In some embodiments, the guiding device further comprises a bending and holding mechanism 170, which is mounted in the hollow cavity of the proximal shaft part 110 and is configured to keep the distal end part 101 of the proximal shaft part in a predetermined bending configuration in an original state, i.e. in an initial state, the distal end part 101 of the proximal shaft part is kept in a certain bending shape, instead of a straight shape, such as an arc shape, in some embodiments, the bending and holding mechanism is implemented by a spring mounted in a hollow cavity of the proximal shaft part, which structure comprises a spring 171, one end of which is connected to the distal end part 101 and the other end is connected to the distal end side of the proximal shaft part 110, which spring may also be implemented by other similar elastic bodies, and by means of the force of a spring, the bending configuration keeping the distal end part of the proximal shaft part in a predetermined shape may be implemented, in some embodiments, the two ends of which spring are connected to a pull wire 172, which is connected to the distal end sides of the distal end part 101, the proximal shaft part by means of the pull wire 172, which is optionally fixed to the proximal shaft part 105 by a fixation pin, the other end of which is fixed to the proximal shaft part is fixed by a fixation pin (e.g. a cannula, a tube, which may be welded through the distal end of the proximal shaft part 1011).

In some embodiments, the bellows 1011 of the distal end portion 101 is connected to the hypotube 1021 of the proximal shaft section main body 102 by a hollow connection post 103, and the distal end portion 101 can maintain a certain bending configuration under the action of a bending maintaining mechanism, such as being biased in a first direction, and can be deformed by bending the distal direction of a control wire in the shaft by an operation handle when performing an insertion operation, and deformed in a second direction opposite to the first direction, as shown in fig. 14, and different deformation bending is achieved according to the tension of the control wire.

In some embodiments, when the trigger 210 of the handle is actuated, the proximal shaft connecting portion 141 of the coupling connector 140 and the proximal shaft limit connecting mechanism 270 connected thereto move together in the handle 200, the target position is moved from the initial position, the distal shaft connecting portion 142 is kept still under the action of the distal shaft limit connecting mechanism 260, the proximal shaft connecting portion and the distal shaft connecting portion are separated and separated, and the control wire 160 is pulled, so that the deformation and bending control of the distal end portion 101 is realized, after the trigger 210 is reset, the control wire 160 is returned to the initial position again under the action of the bending maintaining mechanism 170, and the distal end portion 101 is reset to the initial arc-shaped bending state.

In some embodiments, the trigger 210 of the handle 200 has a mating structure (e.g., a U-shaped structure) at its upper end, and is capable of being coupled to and engaged with the proximal shaft connecting portion 141, and is capable of being coupled to the flat portion 144 on the surface of the proximal shaft connecting portion 141, and is capable of driving the proximal shaft connecting portion 141 to move when rotated, and is capable of driving the proximal shaft connecting portion 141 and the proximal shaft portion 110 to move away from the distal shaft portion 120 (to the right in fig. 1), thereby deforming or changing shape of the distal end portion 101 in one or more directions. In use, the endotracheal tube can be passed over the guide after the handle grip is removed or detached from the guide.

In some embodiments, the trigger may be any type of input device that causes an action to occur based on receiving an input. Other examples of the trigger may include a button, a lever, a joystick, a touch screen, or the like. The trigger may be configured to be in various positions based on the received input. For example, the trigger may be configured to be in a first position (e.g., an initial rest position) based on no force or input being received, in a second position (e.g., a deployed target position) based on a force being received, or any position between the first and second positions. When in the second position, the user may be applying a force against the trigger of the handle. The second position may be defined as the position when the trigger has reached its maximum movement position. In this case, additional forces applied in the same direction may no longer move the trigger. The second position may occur, for example, when movement of the trigger is prevented or stopped due to abutment of the trigger against the grip of the handle.

In some embodiments, the handle has an upper housing 220, which can be combined with a lower housing 230 by using a buckle or other structure to form a detachable structure that is convenient to detach, a portion of the upper housing for fixing the shaft can be opened to facilitate loading, fixing and removing of the guiding device, after the upper housing and the lower housing are fastened and fixed, the loaded shaft can be limited at the upper end, after the shaft is loaded into the handle, when the trigger 210 of the handle rotates, the proximal shaft 110 moves forward (to the right in fig. 1), so that the control wire 160 is pulled tightly, thereby realizing bending deformation of the distal end 101 of the proximal shaft 110 of the guiding device.

In some embodiments, the lower housing 230 of the handle 200 has a grip 240, and the grip 240 includes a battery compartment (not shown) therein, in which a battery (not shown) for power is placed to power the optical capture device as well as the display device. The battery is a rechargeable battery or a disposable, non-rechargeable battery or other power source capable of supplying power.

While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof;

The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

1. A device for guiding an endotracheal tube comprising a shaft and a handle configured to be removably connected to the shaft; the shaft includes a distal shaft portion, a proximal shaft portion, and a control wire; the distal shaft portion and the proximal shaft portion being joined by a joining connection and allowing adjustment of the distance between the distal shaft portion and the proximal shaft portion; the proximal shaft portion includes a proximal shaft portion body and a tip portion, the control wire being disposed at least partially within the proximal and distal shaft portions and configured to deform the tip portion; characterized in that the proximal shaft part is a hollow tube body, and the device for guiding an endotracheal tube further comprises:

An optical capture device configured to fit within an end face cavity of the tip portion;

A first contact connected to a first cable connected to the optical capturing device, disposed on the shaft, the first contact moving synchronously with the proximal shaft section when the proximal shaft section is separated from the distal shaft section;

A second contact connected to a second cable connected to a display device, disposed on a limit connection mechanism of the shaft in the handle, to move in synchronization with the proximal shaft section;

after the shaft is arranged in the handle and is limited and fixed, the first contact is connected with the second contact, so that the first cable is communicated with the second cable to supply power for the optical capturing device, and the optical capturing device transmits image data to the display device for displaying.

2. The device for guiding an endotracheal tube according to claim 1, wherein said first contact is connected to a flexible circuit board to which said first cable is connected, through which said first cable is connected.

3. The device for guiding an endotracheal tube according to claim 1, wherein said coupling connection comprises a proximal shaft connection part connected to a proximal shaft part and a distal shaft connection part connected to a distal shaft part, said first contact being arranged on said proximal shaft connection part.

4. A device for guiding an endotracheal tube according to claim 3, wherein said spacing connection comprises a proximal shaft spacing connection, said second contact fitting on said proximal shaft spacing connection, said proximal shaft spacing connection being slidable in said handle, said proximal shaft connection cooperating with said proximal shaft spacing connection.

5. The device for guiding an endotracheal tube according to claim 4, wherein said proximal shaft limit attachment mechanism is mounted inside a mounting frame disposed within said handle in sliding engagement with said mounting frame.

6. The device for guiding an endotracheal tube according to claim 1, wherein said distal end portion comprises a bellows and said proximal shaft section body comprises a hypotube, said hypotube being connected to said bellows by a hollow connecting post, said bellows and hypotube being externally arranged with a continuous surface.

7. The device for guiding an endotracheal tube according to claim 1, wherein said first cable is arranged within a hollow cavity of said proximal shaft section.

8. The device for guiding an endotracheal tube according to claim 1, further comprising a bend retaining mechanism housed within the hollow cavity of the proximal shaft section, configured to retain the distal end portion in a predetermined bent configuration in an original state.

9. The device for guiding an endotracheal tube according to claim 8, wherein said bending maintaining mechanism comprises a spring, one end of said spring being connected to said distal end portion, the other end being connected to a distal end side of said proximal shaft section main body.

10. The device for guiding an endotracheal tube according to claim 1, wherein said handle has a grip, said grip comprising a battery compartment in which a battery for power supply is placed.