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CN112569441B - External video cable and ventilation catheter - Google Patents

External video cable and ventilation catheter Download PDF

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Publication number
CN112569441B
CN112569441B CN202011334564.0A CN202011334564A CN112569441B CN 112569441 B CN112569441 B CN 112569441B CN 202011334564 A CN202011334564 A CN 202011334564A CN 112569441 B CN112569441 B CN 112569441B
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China
Prior art keywords
video
catheter
cable
video cable
connecting mechanism
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CN112569441A (en
Inventor
胡春晓
马旭东
高宏
黄佳慧
于智慧
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Wuxi Holy Noah Technology Co ltd
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Wuxi Holy Noah Technology Co ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0402—Special features for tracheal tubes not otherwise provided for
    • A61M16/0404—Special features for tracheal tubes not otherwise provided for with means for selective or partial lung respiration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002—Operational features of endoscopes
    • A61B1/00011—Operational features of endoscopes characterised by signal transmission
    • A61B1/00018—Operational features of endoscopes characterised by signal transmission using electrical cables
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00112—Connection or coupling means
    • A61B1/00119—Tubes or pipes in or with an endoscope
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00112—Connection or coupling means
    • A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
    • A61B1/00128—Connectors, fasteners and adapters, e.g. on the endoscope handle mechanical, e.g. for tubes or pipes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00154—Holding or positioning arrangements using guiding arrangements for insertion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/005—Flexible endoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/267—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the respiratory tract, e.g. laryngoscopes, bronchoscopes
    • A61B1/2676—Bronchoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0463—Tracheal tubes combined with suction tubes, catheters or the like; Outside connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0486—Multi-lumen tracheal tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/583—Means for facilitating use, e.g. by people with impaired vision by visual feedback

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
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  • Optics & Photonics (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Emergency Medicine (AREA)
  • Physiology (AREA)
  • Otolaryngology (AREA)
  • Mechanical Engineering (AREA)
  • Endoscopes (AREA)

Abstract

The invention discloses an external video cable and an air duct (bronchial duct or tracheal duct), which comprises a video cable and a video duct connecting mechanism. The video guide pipe connecting mechanism is provided with a video connecting mechanism which can temporarily lock the positions of the video guide pipe connecting mechanism and the rear section of the video cable, and the video guide pipe connecting mechanism is loosened to operate the tail part of the video cable so that the video cable independently moves forwards, backwards or rotates. The video tube connection mechanism is also provided with a tube connection mechanism for articulation with the airway tube, which temporarily locks the position of the properly assembled airway tube, and releases the tube connection mechanism to allow manipulation of the video tube connection mechanism to disengage from the airway tube. The external video cable and the ventilation catheter provided by the invention can fully utilize the intra-tracheal space of a patient, reduce the occupation of the video cable on a ventilation cavity, reduce the pressure of a single-lung ventilation airway of the ventilation catheter, adjust the video cable to check and position the inside of the airway, and have simple structure and wide applicability.

Description

External video cable and ventilation catheter
Technical Field
The invention relates to the technical field of medical equipment, in particular to an external video cable and an air duct.
Background
The visible bronchial catheter is widely applied to anesthesia in thoracic surgery, has the effects of isolating the left lung and the right lung, realizing the respective ventilation of the left lung and the right lung, and safely and effectively implementing the ventilation of the single lung in the main tube so as to provide conditions for the tube side surgery. But the cost is high, and the wide popularization in clinic is difficult.
But its drawbacks are also quite significant: (1) the video view is covered by the head end of the main pipe, only the front part of the air passage inner cavity of the pipe can be observed, and the air passage inner cavity can not be further observed; (2) the video cable is fixed in the wall of the catheter, so that the section of an auxiliary tube of the bronchial catheter is greatly occupied, the effective ventilation area is obviously reduced, the ventilation resistance is obviously increased, and the video cable is particularly serious in a small-sized bronchial catheter; (3) the video cable is embedded in the narrow video cavity, so that the process difficulty is high, the production process is reduced, and the production cost is increased.
A visual ventilation catheter is urgently needed in clinic, and a maximum ventilation lumen is provided when single lung ventilation is carried out, so that the airway pressure is reduced to the maximum extent, and the visual ventilation catheter can be used in a small-size tracheal catheter; can effectively reduce the production cost and the popularization difficulty.
When clinical endotracheal tube general anesthesia is done and intervenes the operation in the air flue, need put into video scope and operation instrument simultaneously through endotracheal tube, operation instrument includes cutting means and blood coagulation instrument, no matter what kind of operation instrument of use, all must operate under the assistance of video scope. Because the inner cavity of the air duct conduit in the operation is limited, only one operation tool can be put in, and the operation tool needs to be switched continuously in the operation.
The clinical demand is a visual tracheal catheter, in the operation is intervene to the air flue, can put into two kinds or more surgical instruments simultaneously through the tracheal catheter inner chamber, avoids constantly inserting and pulling the change surgical instrument, has both saved the operation time, reduces the operation and bleeds again, improves the operation security.
Disclosure of Invention
The invention aims to provide an external video cable and an air duct, which have simple structures and strong applicability.
Based on the problems, the technical scheme provided by the invention is as follows:
an external video cable comprises a video cable and a video conduit connecting mechanism. The video guide pipe connecting mechanism is provided with a video connecting mechanism which can be movably connected with the video cable. The video connecting mechanism can temporarily lock the position of the rear section of the video cable, and the video guide pipe connecting mechanism is released, so that the tail part of the video cable can be operated to independently advance, retreat or rotate. The video catheter connection mechanism is also provided with a catheter connection mechanism for movably connecting with a matched ventilation catheter, the catheter connection mechanism can temporarily lock the correctly assembled ventilation catheter, and the video catheter connection mechanism can be operated to be separated from the ventilation catheter by loosening the catheter connection mechanism; when the ventilation catheter is assembled in the video catheter connecting mechanism, the head end of the video cable 1 is close to the head end of the ventilation catheter 4.
Further, the catheter connecting mechanism is connected with an adaptive ventilation catheter, and the ventilation catheter comprises an endotracheal tube and a bronchial catheter.
Furthermore, the video cable is provided with an adjuster which can bend the head end of the video cable, and the operating end of the adjuster is arranged at the tail part of the video cable.
Furthermore, a hollow cavity which is through from head to tail is arranged in the video cable, a connector tube is arranged at the tail part of the hollow cavity, and the connector tube can be connected with the negative pressure suction tube and the oxygen supply tube in a matching mode.
Furthermore, the external video cable and the ventilation catheter also comprise a display screen and a power supply which are matched and electrically connected with the video cable.
Furthermore, the video connecting mechanism comprises a video fixing pipe, a cable locking arm and a cable locking nut, and the video cable is nested in the video fixing pipe. The outer wall of the cable locking arm and the inner wall of the cable locking nut are provided with matched threads, the cable locking nut is sleeved outside the cable locking arm in a sleeving manner, the video cable can be locked in the video fixing pipe by screwing the cable locking nut, and the cable locking arm can be loosened by loosening the cable locking nut, so that the video cable can move forwards, backwards or rotate in the video fixing pipe.
Further, the catheter connecting mechanism comprises a catheter fixing tube, a catheter locking arm and a catheter locking nut, and the ventilation catheter can be nested in the catheter fixing tube. The outer wall of the catheter locking arm and the inner wall of the catheter locking nut are provided with matched threads, the catheter locking nut is sleeved outside the catheter locking arm in a ring mode, the catheter locking arm can be tightened by screwing the catheter locking nut, the ventilation catheter is locked in the catheter fixing tube, the catheter locking arm can be loosened by loosening the catheter locking nut, and the video catheter connecting mechanism can be operated to be separated from the ventilation catheter.
Furthermore, a side hole is formed in the front end of the ventilation catheter, and the video cable can be temporarily fixed or loosened by burying a fixing wire through the side hole.
Furthermore, the middle section of the fixing wire is reversely folded and embedded in the tube cavity of the ventilation catheter, a lantern ring is arranged at a side hole at one end of the fixing wire corresponding to the side hole, and the lantern ring is sleeved on the outer wall of the video cable; the video cable can be locked outside the side hole of the cavity of the ventilation catheter by tightening the lantern ring, and the video cable can be loosened by loosening the lantern ring.
Furthermore, a fixed wire operation body is arranged outside the vent pipe corresponding to the pipe tail interface, the other end of the fixed wire is arranged outside the vent pipe corresponding to the pipe tail interface, the vent pipe corresponding to the pipe tail interface is connected with the fixed wire operation body, and the operation body can be operated to tighten or loosen the lantern ring.
Compared with the prior art, the invention has the advantages that:
1. compared with a visual bronchial catheter, the video cable is arranged on the outer side of the bronchial catheter wall and is positioned in a gap between the inner wall of the air passage and the outer wall of the bronchial catheter during use, the inner cavity of the air passage is fully utilized, the video cable is prevented from occupying the inner cavity of the auxiliary tube of the bronchial catheter, the inner diameter of the ventilation cavity is increased, and the pressure of the air passage is reduced.
2. Compared with the current clinical visible tracheal catheter and the current visual bronchial catheter, the video cable is movably connected with the ventilation catheter, so that the video cable can move freely, the deep part of the airway can be checked and operated when the ventilation catheter ventilates, the use scenes of the video cable are increased, and more clinical requirements are met.
3. The video cable is provided with a hollow cavity which can suck phlegm or supply oxygen to the deep part of the air passage; the hollow cavity can be used for cleaning the head end of the video cable.
4. The external video cable and the ventilation catheter are simple in assembly process, the cost of the visual ventilation catheter is reduced, and the popularization difficulty of the visual ventilation catheter is reduced.
5. The external video cable can be detached and can be matched with the ventilation catheters of different manufacturers for use, and the external video cable can be repeatedly sterilized for use when necessary, so that the use cost of the visual ventilation catheter is further reduced, and a patient is benefited.
6. Through the setting of fixed line, can nimble operation video cable head end lock, make the synchronism operation of pipe and video cable of ventilating realize easily, reduced the use degree of difficulty, increased and promoted the feasibility.
7. The tail part of the external video cable is provided with the regulator, so that various bending regulation can be performed on the video cable, and various high-difficulty checks and operations can be conveniently completed.
8. The external video cable does not occupy the inner cavity of the tracheal catheter, and two or more surgical tools can be simultaneously placed in the inner cavity of the tracheal catheter in the airway intervention operation, so that the surgical tools are prevented from being continuously inserted and pulled out and replaced, the operation time is saved, the surgical bleeding is reduced, and the operation safety is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an external video cable according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of the connection of a bronchial tube and the arrangement of a fixing wire according to example 1 of the present invention;
FIG. 3 is a schematic view of a video catheter connection mechanism according to the present invention;
FIG. 4 is a schematic structural diagram of another embodiment of a video fixing tube according to the present invention;
FIG. 5 is a schematic view of the embodiment 1 of the present invention in connection with setting of an endotracheal tube and setting of a fixing wire;
wherein:
1. video cable; 1-1, a regulator;
2. a video connection mechanism; 2-1, video fixing tube; 2-2, a cable locking arm; 2-3, cable locking nuts;
3. a conduit connection mechanism; 3-1, a catheter fixing tube; 3-2, a catheter locking arm; 3-3, cable locking nuts;
4. an airway tube; 4-1, side holes; 4-2, fixing the wire; 4-3, a lantern ring; 4-4, an operation body; 4-5, a connecting shaft; 4-6, a first clamping body; 4-7 and a second clamping body.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
Referring to fig. 1, which is a schematic structural diagram of embodiment 1 of the present invention, an external video cable is provided, including a video cable 1 and a video conduit connection mechanism, where the video conduit connection mechanism is provided with a video connection mechanism 2 capable of being movably connected to the video cable 1. The video connecting mechanism 2 can temporarily lock the position of the rear section of the video cable 1, the video conduit connecting mechanism 2 is released, the tail part of the video cable 1 can be operated, and the video cable 1 can independently advance, retreat or rotate. The video catheter connecting mechanism is also provided with a catheter connecting mechanism 3 which is used for movably connecting with a matched ventilation catheter 4, the catheter connecting mechanism 3 can temporarily lock the ventilation catheter 4 which is correctly assembled, and the video catheter connecting mechanism can be operated to be separated from the ventilation catheter 4 by loosening the catheter connecting mechanism 3.
The external video cable and the ventilation catheter also comprise a display screen and a power supply which are matched and electrically connected with the video cable 1. After the display screen and the power supply are correctly connected with the video cable 1, the video data at the head of the video cable 1 can be collected. Certainly, the video cable 1 has certain strength, so that the tail portion operation is convenient to hold by hand, the length and the outer diameter of the video cable 1 need to meet the video observation requirements of the ventilation catheters 4 of corresponding models, and the head end of the video cable is provided with a light source for video acquisition and illumination, which is common knowledge of the video cable and is not repeated.
Before use, the fitted airway tube 4 is fitted in place in the tube connector 3 of the video tube connector and the locking tube connector 3 temporarily locks the properly fitted airway tube 4, locking the position of the rear portion of the airway tube 4 to the video tube connector.
And (3) loosening the video connecting mechanism 2, adjusting and operating the tail part of the video cable 1, and enabling the video cable 1 to advance, retreat or rotate, so that the length of the video cable 1 is matched with the airway tube 4, namely the head end of the video cable 1 is close to the head end of the airway tube 4. At this time, the video connector 2 is temporarily locked to lock the positions of the video cable 1 and the video pipe connector.
At this time, the video cable 1 rear section and the airway tube 4 rear section are locked at the video connecting mechanism 2 and the tube connecting mechanism 3 through the video tube connecting mechanism, so that the video tube connecting mechanism, the video cable 1 and the airway tube 4 are locked into an integral structure. By rotating the airway tube 4, the video cable 1 and video tube connection mechanism can be driven to rotate synchronously around the airway tube 4. Of course, it is emphasized here that the correct positional relationship of the video conduit connection, video cable 1 and airway tube 4 is now: the video cable 1 and the rear section of the ventilation catheter 4 are locked into a whole through a video catheter connecting mechanism, and the head end of the video cable 1 is close to the head end of the ventilation catheter 4. When the trachea cannula is used, the video catheter connecting mechanism, the video cable 1 and the rear structure of the ventilation catheter 4 are held by hands, so that the heads of the video cable 1 and the ventilation catheter 4 with the axes attached together can be smoothly placed into the glottis of a patient and enter the airway. The video cable 1 and the rear structure of the ventilation catheter 4 are held by hands, and the video catheter connecting mechanism is rotated in the air flue, so that the video cable 1 and the ventilation catheter 4 can rotate in the same direction.
After the video cable 1 and the ventilation catheter 4 enter the airway of the patient, the video in the airway of the patient at the head end of the ventilation catheter 4 can be collected by a display screen and a power supply which are electrically connected with the video cable 1. The video cable 1 and airway tube 4 are slowly advanced under video viewing by holding the video tube connection mechanism, video cable 1 and airway tube 4 back structure so that the head of the airway tube 4 is positioned within the trachea near the carina of the patient. The video cable 1 and the rear structure of the ventilation catheter 4 (bronchial catheter) are rotated, so that the head of the main pipe of the ventilation catheter 4 (bronchial catheter) corresponds to the direction of the bronchial orifice to be inserted correctly.
At this time, the video connecting mechanism 2 is released, so that the video cable 1 can independently move. Keeping the position of the video cable 1 still, slowly pushing the air duct 4 (bronchial duct) to enable the head end of the air duct 4 (bronchial duct) to enter the corresponding bronchial lumen, and enabling the depth to be proper.
At this time, the ventilation catheter 4 (bronchial catheter) and the dental pad can be fixedly adhered to the upper incisor position of the patient by the adhesive plaster. Keeping the positions of the connecting mechanism of the ventilation catheter 4 (bronchial catheter) and the video catheter still, slowly rotating, pushing or retreating the video cable 1, and observing and diagnosing the state of an illness in the airway of a patient by using the video cable 1; or the video connecting mechanism 2 is used for locking the rear section of the video cable 1, the video cable 1 is kept still, and the appointed part is continuously observed.
In the surgical anesthesia, the operations of inflating and deflating the balloon of the airway tube 4 (bronchial tube), deflating the lung, inflating the lung, ventilating the lung in one lung, and the like are not changed by the arrangement of the video cable 1, and therefore, they are not described here. It is to be noted that when the device is used for single or double lung ventilation, the video cable 1 is located in the space between the inner wall of the patient's airway and the outer wall of the ventilation catheter 4. This void is left unused during ventilation of the existing airway tube 4. By using the product of the invention, the lacuna is fully utilized, the occupation of the video cable on the ventilation inner cavity of the ventilation catheter 4 is avoided, the inner diameter of the ventilation cavity is increased on the premise of not increasing the injury and risk of the intubation of the patient, and the airway pressure is reduced. The single lung ventilation of the bronchial catheter has obvious advantages, especially in patients with high airway pressure, such as COPD, pulmonary fibrosis, pulmonary hypertension, small bronchial catheters and the like, the airway pressure can be obviously reduced, and the single lung ventilation has obvious advantages.
When the position of the video cable 1 reaches a proper position, the video connecting mechanism 2 can be locked again, and the head end of the video cable 1 is fixed at the position, so that continuous observation is facilitated. When the observation position needs to be adjusted again, the video connecting mechanism 2 is released again, and the position of the video cable 1 is continuously adjusted.
Furthermore, the video cable 1 is provided with a regulator 1-1 which can enable the head end of the video cable 1 to bend, and the operating end of the regulator 1-1 is arranged at the tail part of the video cable 1. Therefore, the direction of the head end of the video cable 1 can be changed by operating the regulator 1-1 arranged at the tail part of the video cable 1, and the head end of the video cable 1 can be bent to point to any direction by matching with the rotating video cable 1, so that the video cable 1 is guided to advance into a targeted air passage. This method of adjustment is extremely common in video endoscopes, such as gastrointestinal and bronchoscopes, and its structure will not be described here.
Further, a hollow cavity which is through from head to tail is arranged in the video cable 1, a connector tube is arranged at the tail of the hollow cavity, and the connector tube can be connected with the negative pressure suction tube and the oxygen supply tube in a matching mode. Therefore, the interface tube is connected with the negative pressure suction tube, and the hollow cavity arranged in the video cable 1 can be used for accurately sucking sputum in the air passage under the visual condition; or normal saline is injected into the mouth piece and the middle cavity to dilute sputum or clean the airway anastomotic stoma. It should be noted that, well cavity is preferred to be set up in video acquisition head slightly rear at the opening of video cable 1 head, like this, when video acquisition head was polluted by sputum or blood, can pour into normal saline and clean video acquisition head into, avoids extracting the filth that whole video cable 1 went to clean video acquisition head, and is not only convenient but also safe. When the lung function of a patient is poor, the patient can be in matched connection with the oxygen supply tube through the mouth piece, static oxygen supply is carried out in the lung at the operation side, oxygenation is increased, and operation safety is improved.
As shown in fig. 2, for ease of handling, the trouble of fitting the airway tube 4 to the tube connecting mechanism 3 is eliminated, and a corresponding model of an adapted airway tube 4 may be pre-fitted to the tube connecting mechanism 3 at the time of production.
After the patient regains consciousness well after the surgical anesthesia is over, the balloon of the airway tube 4 is evacuated to remove the airway tube 4, the video cable 1 and the video tube connection together from the patient's airway. Releasing the catheter connection mechanism 3 allows the video catheter connection mechanism to be manipulated away from the airway tube 4. The separated video catheter connecting mechanism and the video cable 1 are cleaned and can be used for the next time after sterilization, and the use cost is greatly reduced.
As shown in fig. 2 and 3, the video connecting mechanism 2 comprises a video fixing tube 2-1, a cable locking arm 2-2 and a cable locking nut 2-3, wherein the video cable 1 is nested in the video fixing tube 2-1; the outer wall of the cable locking arm 2-2 and the inner wall of the cable locking nut 2-3 are provided with matched threads, the cable locking nut 2-3 is sleeved outside the cable locking arm 2-2 in a sleeved mode, the cable locking nut 2-3 is screwed to enable the cable locking arm 2-2 to be tightened, the video cable 1 is locked in the video fixing pipe 2-1, the cable locking nut 2-3 is loosened to enable the cable locking arm 2-2 to be loosened, and the video cable 1 can move forwards, backwards or rotate in the video fixing pipe 2-1.
During specific implementation, the inner cavity of the video fixing tube 2-1 is matched with the shape of the video cable 1, the inner cavity of the video fixing tube 2-1 is slightly larger than the size of the video cable 1, and lubricating oil can be coated on the inner cavity of the video fixing tube 2-1 and the outer wall of the rear section of the video cable 1 in a proper amount, so that the operation of the movement of the video cable 1 is facilitated. In the embodiment, the video fixing tube 2-1 is provided with a slit along the longitudinal side wall, cable locking arms 2-2 are arranged on two sides of the tail of the slit, a gap is also arranged between the two cable locking arms 2-2, the outer walls of the two cable locking arms 2-2 form a conical column shape with a gap in the middle, one side of the conical column shape close to the video fixing tube 2-1 is thick, and the other side of the conical column shape far away from the video fixing tube 2-1 is thin. The conical outer walls at two sides (namely the outer walls of the two cable locking arms 2-2) and the inner walls of the cable locking nuts 2-3 are provided with matched threads, when the cable locking nuts 2-3 are rotationally tightened, the two cable locking arms 2-2 are gradually close to each other, so that the video fixing tube 2-1 provided with the crack can be contracted and reduced, the video cable 1 sleeved in the video fixing tube 2-1 is encircled and fixed, the annular outer walls are uniformly stressed, the stress area is large, the friction force is large, and the fixing effect is good.
Of course, as shown in FIG. 4, the cable locking arm 2-2 may be disposed at an open end of the video mounting tube 2-1 along the longitudinal axis of the video mounting tube 2-1 to form a continuation of the video mounting tube 2-1. At this time, the cable locking arm 2-2 is annularly arranged at the opening part at the tail end of the video fixing tube 2-1, and can be two, three or even more. The inner sides of the plurality of cable locking arms 2-2 form a continuation of the video fixing tube 2-1 which is matched with the video cable 1 and is provided with a plurality of cracks. The outer walls of the plurality of cable locking arms 2-2 form a conical-column-shaped appearance with a thin tail end and a thick bottom. The cable locking nut 2-3 is provided with a complete set of cylindrical structure, the inner cavity of the sleeve is matched with the conical column shape, and the outlet of the sleeve can accommodate the video cable 1 to pass through. The outer walls of the conical columns (namely the outer walls of the two cable locking arms 2-2) and the inner walls of the cable locking nuts 2-3 are provided with matched threads, when the cable locking nuts 2-3 are rotated to be tightened, the cable locking arms 2-2 are gradually close to the axial center, so that the video cable 1 sleeved in the cable locking arms 2-2 is encircled and fixed, the outer wall of the video cable 1 is uniformly stressed, the stressed area is large, and the fixing effect is good.
The catheter connecting mechanism 3 comprises a catheter fixing tube 3-1, a catheter locking arm 3-2 and a catheter locking nut 3-3, and the ventilation catheter 4 can be nested in the catheter fixing tube 3-1; the outer wall of the catheter locking arm 3-2 and the inner wall of the catheter locking nut 3-3 are provided with matched threads, the catheter locking nut 3-3 is sleeved outside the catheter locking arm 3-2 in a sleeved mode, the catheter locking nut 3-3 is screwed to enable the catheter locking arm 3-2 to be tightened, the ventilation catheter 4 is locked in the catheter fixing tube 3-1, the catheter locking nut 3-3 is loosened to enable the catheter locking arm 3-2 to be loosened, and the video catheter connecting mechanism can be operated to be separated from the ventilation catheter 4. And will not be described in detail herein.
Of course, there are many more embodiments of the video connector 2 and the catheter connector 3, which are not illustrated here, as long as the video cable 1 and the airway tube 4 can be locked or unlocked at any time.
As shown in figure 2, in order to further increase the synchronism of the video cable 1 and the ventilation catheter 4 (bronchial catheter) during intubation, a side hole 4-1 is arranged at the front end of the auxiliary tube of the ventilation catheter 4 (bronchial catheter), and the video cable 1 can be temporarily fixed or loosened by burying a fixing wire 4-2 through the side hole.
The simplest setting method of the fixed line 4-2 is as follows: the head end of the fixing wire 4-2 is bound at the head end of the video cable 1, the wire body of the fixing wire 4-2 passes through the auxiliary pipe of the air duct 4 (bronchial duct), and the tail end of the fixing wire 4-2 is connected with the tail interface of the auxiliary pipe of the air duct 4 (bronchial duct) to form an operation end. The thin wire body with good toughness is selected, and even if the wire body is dragged out of the tail interface of the auxiliary tube of the ventilation catheter 4 (bronchial catheter), the influence on the sealing performance of the tail of the auxiliary tube of the ventilation catheter 4 (bronchial catheter) connected with the respiratory support equipment is enough to be accepted clinically. The head end of the video cable 1 can be temporarily fixed at the opening of the head end of the auxiliary pipe of the ventilation catheter 4 (bronchial catheter) by pulling the tail operating end of the fixing wire 4-2 to tighten the fixing wire 4-2. The fixing line 4-2 is loosened, and then the video cable 1 can be operated to drive the fixing line 4-2 to carry out various operations in the air passage. However, the disadvantages of this wire body binding are: when the video cable 1 goes deep far away from the opening at the head end of the auxiliary pipe of the ventilation catheter 4 (bronchial catheter), the position of the video cable 1 cannot be effectively fixed, and at the moment, the tail operating end of the fixing wire 4-2 is pulled and drawn to tighten the fixing wire 4-2, so that the head of the video cable 1 is bent and folded, and the inner wall of an air passage can be damaged.
As shown in fig. 2, a more effective method of setting the fixing line 4-2 is: the middle section of the fixing wire 4-2 is reversely folded and embedded in an auxiliary lumen of the ventilation catheter 4 (bronchial catheter), a side outlet hole 4-1 at the tail end of the reverse folded part of the middle section of the fixing wire 4-2 forms a lantern ring 4-3, and the lantern ring 4-3 is sleeved on the outer wall of the video cable 1; the tail interfaces of the auxiliary tubes of the ventilation catheters 4 (bronchial catheters) at the end parts of the two tail ends of the fixed wire 4-2 form an operation end, and a thin wire body with good toughness is selected, so that even if the wire body is dragged out of the tail interfaces of the auxiliary tubes of the ventilation catheters 4 (bronchial catheters), the influence on the sealing performance of the tail parts of the auxiliary tubes of the ventilation catheters 4 (bronchial catheters) connected with the respiratory support equipment is enough for clinical acceptance. The tightening operation end can make the lantern ring 4-3 smaller, so that the lantern ring 4-3 is sleeved on the outer wall of the video cable 1, and a fixing effect is formed on the position of the video cable 1. When the video cable 1 needs to be operated, the end parts of the two tail ends of the fixing line 4-2 are loosened, so that the lantern ring 4-3 is loosened and enlarged, and the constraint and fixation on the outer wall of the video cable 1 is loosened. The method has the advantages that no matter the head of the video cable 1 is at any position of the air passage, the tightening operation end can make the lantern ring 4-3 become small, the tightening ring is sleeved on the outer wall of the video cable 1, and therefore the fixing effect is achieved on the position of the video cable 1.
In order to facilitate the operation of tightening and loosening the lantern ring 4-3, the end parts of the two ends of the fixing wire 4-2 are arranged outside the auxiliary pipe tail interface of the ventilation catheter 4 (bronchial catheter), the fixing wire operation body 4-4 is arranged outside the auxiliary pipe tail interface of the ventilation catheter 4 (bronchial catheter) and connected with the end parts of the two ends of the fixing wire 4-2, and the operation body 4-4 is operated to tighten or loosen the lantern ring 4-3 so that the lantern ring 4-3 can lock or loosen the video cable 1. In this embodiment, the operation body 4-4 is configured to be a handle, one end of the operation body 4-4 is connected to the outer wall of the interface at the tail of the auxiliary tube of the ventilation catheter 4 (bronchial catheter) through a connecting shaft 4-5, the operation body 4-4 is provided with a first clamping body 4-6, and a second clamping body 4-7 is disposed at a position corresponding to the outer wall of the interface at the tail of the auxiliary tube of the ventilation catheter 4 (bronchial catheter). The first clamping body 4-6 can be clamped on the second clamping body 4-7 by rotating the operation body 4-4, and the fixing wire 4-2 is tightened, so that the lantern ring 4-3 is reduced to form a fixing effect on the video cable 1. When the first clamping body 4-6 is separated from the second clamping body 4-7, the fixing line 4-2 is loosened, so that the lantern ring 4-3 is enlarged and the fixing effect on the video cable 1 is lost.
As shown in fig. 5, when the air duct 4 of the "external video cable and air duct" is selected as an endotracheal tube, in order to further increase the synchronism between the video cable 1 and the air duct 4 (endotracheal tube) at the time of intubation, a side hole 4-1 is provided at the front end opening of the air duct 4 (endotracheal tube), and based on the above understanding of the external video cable and the endotracheal tube, the principle of embedding and operating the fixing wire 4-2 is the same, and will not be described here.
The above examples are only for illustrating the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (7)

1. An external video cable and ventilation catheter, which is characterized in that: comprises a video cable (1) and a video conduit connecting mechanism; the video conduit connecting mechanism is provided with a video connecting mechanism (2) which can be movably connected with the video cable (1); the video connecting mechanism (2) can temporarily lock the position of the rear section of the video cable (1), the video connecting mechanism (2) is released, and the tail of the video cable (1) can be operated to enable the video cable (1) to independently advance, retreat or rotate; the video catheter connecting mechanism is also provided with a catheter connecting mechanism (3) which is movably connected with a matched ventilation catheter (4), the catheter connecting mechanism (3) can temporarily lock the ventilation catheter (4) which is correctly assembled, and the video catheter connecting mechanism can be operated to be separated from the ventilation catheter (4) by loosening the catheter connecting mechanism (3); when the ventilation catheter (4) is assembled in the video catheter connecting mechanism, the head end of the video cable (1) is close to the head end of the ventilation catheter (4);
the catheter connecting mechanism (3) is connected with an adaptive ventilation catheter (4), and the ventilation catheter comprises an endotracheal tube and a bronchial catheter;
a side hole (4-1) is arranged at the front end of the ventilation catheter (4), and a fixing wire (4-2) is buried through the side hole (4-1) to temporarily fix or release the video cable (1); the middle section of the fixing wire (4-2) is reversely folded and embedded in a tube cavity of the ventilation catheter (4), a lantern ring (4-3) is arranged at a position, corresponding to the side hole (4-1), of one end of the fixing wire (4-2) and provided with the side hole (4-1), and the lantern ring (4-3) is sleeved on the outer wall of the video cable (1); the video cable (1) can be locked outside the side hole (4-1) of the tube cavity of the ventilation catheter (4) by tightening the lantern ring (4-3), and the video cable (1) can be released by loosening the lantern ring (4-3).
2. The external video cable and airway tube of claim 1, wherein: the video cable (1) is provided with an adjuster (1-1) which can bend the head end of the video cable (1), and the operating end of the adjuster (1-1) is arranged at the tail part of the video cable (1).
3. The external video cable and airway tube of claim 1, wherein: the video cable (1) is internally provided with a hollow cavity which is communicated from head to tail, the tail part of the hollow cavity is provided with a mouthpiece, and the mouthpiece can be connected with the negative pressure suction tube and the oxygen supply tube in a matching way.
4. The external video cable and airway tube of claim 1, wherein: the video cable (1) is matched with the video cable and is electrically connected with the display screen and the power supply.
5. The external video cable and airway tube of claim 1, wherein: the video connecting mechanism (2) comprises a video fixing pipe (2-1), a cable locking arm (2-2) and a cable locking nut (2-3), and the video cable (1) is nested in the video fixing pipe (2-1); matched threads are arranged on the outer wall of the cable locking arm (2-2) and the inner wall of the cable locking nut (2-3), the cable locking nut (2-3) is sleeved outside the cable locking arm (2-2), the cable locking arm (2-2) can be tightened by screwing the cable locking nut (2-3), the video cable (1) is locked in the video fixing pipe (2-1), and the cable locking arm (2-2) can be loosened by loosening the cable locking nut (2-3), so that the video cable (1) can move forwards, backwards or rotate in the video fixing pipe (2-1).
6. The external video cable and airway tube of claim 1 or claim 2 wherein: the catheter connecting mechanism (3) comprises a catheter fixing tube (3-1), a catheter locking arm (3-2) and a catheter locking nut (3-3), and the ventilation catheter (4) can be nested in the catheter fixing tube (3-1); the outer wall of the catheter locking arm (3-2) and the inner wall of the catheter locking nut (3-3) are provided with matched threads, the catheter locking nut (3-3) is sleeved outside the catheter locking arm (3-2), the catheter locking arm (3-2) can be tightened by screwing the catheter locking nut (3-3), the ventilation catheter (4) is locked in the catheter fixing tube (3-1), the catheter locking arm (3-2) can be loosened by loosening the catheter locking nut (3-3), and the video catheter connecting mechanism can be operated to be separated from the ventilation catheter (4).
7. The external video cable and airway tube of claim 1, wherein: a fixed wire operation body (4-4) is arranged outside the vent pipe (4) corresponding to the pipe tail interface, the other end of the fixed wire (4-2) is arranged outside the vent pipe (4) corresponding to the pipe tail interface, the vent pipe (4) corresponding to the pipe tail interface is connected with the fixed wire operation body (4-4), and the lantern ring (4-3) can be tightened or loosened by operating the operation body (4-4).
CN202011334564.0A 2020-11-25 2020-11-25 External video cable and ventilation catheter Active CN112569441B (en)

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CN112791288B (en) * 2020-11-25 2025-03-21 无锡市人民医院 A video cable external ventilation catheter

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