Disposable video laryngoscopic lens with decontamination device

Abstract

The invention discloses a disposable video laryngoscope lens with a decontamination device, which comprises a disposable video laryngoscope lens main body and a guide decontamination device, the guide decontamination device comprises a guide pipe, a pressing rod, a transmission rod and a decontamination rod, the guide pipe is fixed on the disposable video laryngoscope lens main body, and the pressing rod and the transmission rod are inserted into the guide pipe; the transmission rod is inserted and fixed on the decontamination rod in a split manner; the front end of the dirt removing rod is bent and formed to be provided with a dirt removing scraping rod, and a flexible sleeve is arranged on the dirt removing scraping rod. The laryngoscope has the advantages that the dirt removing scraping rod on the dirt removing rod and the end face of the high-transparency closed end of the inner cavity of the laryngoscope blade are kept to move up and down in parallel through the guiding effect of the guiding pipe, and the tip end of the flexible sleeve is tightly attached to the end face of the high-transparency closed end of the inner cavity of the laryngoscope blade for dirt removal. And when the guide bulge and the correspondingly matched guide groove enable the decontamination rod to move up and down, the tip end of the flexible sleeve is tightly attached to the end surface of the high-transparency closed end of the inner cavity of the laryngoscope blade.

Description

Technical field:

[0001] The invention relates to a medical device, in particular to a disposable video laryngoscope blade with a dirt removal device, which is used for clinically provoking the epiglottis of a patient to expose the glottis, guiding medical staff to accurately perform airway intubation for anesthesia or emergency treatment, and can also be used for intraoral diagnosis and treatment. Background technology:

[0002] In 2001, Canadians invented the video laryngoscope. The technical principle of the video laryngoscope is to set a camera at the front end of the laryngoscope blade, collect airway images through the camera at the front end of the laryngoscope blade, and display the collected airway images on the display above the laryngoscope handle. The operator can directly observe the airway image through the video display. The emergence of the video laryngoscope is a revolutionary technological advancement in airway tools. The video laryngoscope can better reveal the glottis, expand the field of vision of anesthesia and emergency doctors, and thus greatly improve the success rate of tracheal intubation. However, if the camera of the video laryngoscope is blocked by even a drop of blood or oropharyngeal secretions, the video laryngoscope will immediately lose the airway image and delay rescue. At the same time, there are also methods that use the oxygen supply source to increase the oxygen flow rate to directly blow away the dirt on the camera or the disposable laryngoscope blade inner cavity high transparent closed end camera to collect airway images and secretions on the light source passing area. This method of decontamination can only blow away food residues blocking the camera, and is powerless against blood or secretions on the camera. The technical problems of visual laryngoscope decontamination have always plagued the industry, and there is no ideal solution so far.

[0003] Patent CN113440092B previously applied by the applicant discloses a visual laryngoscope with a guide and dirt removal device, which includes a guide tube, a dirt removal rod, a reset spring, a limit collar, etc. Although the guide tube can be used to guide the dirt removal rod to closely fit the end surface of the front camera and light source of the laryngoscope blade or the end surface of the high transparent closed end of the laryngoscope blade inner cavity to remove dirt, it still has the following shortcomings:

[0004] 1. The dirt-removing scraper at the front end of the dirt-removing rod is tightly fitted with the end face of the front camera and light source of the laryngoscope blade or the end face of the highly transparent closed end of the inner cavity of the laryngoscope blade by sliding with the guide tube, and the dirt-removing rod is composed of an integral metal wire. Therefore, when the dirt-removing rod reciprocates and moves in the guide tube, the dirt-removing rod made of the metal wire will be slightly elastically deformed and the dirt-removing scraper at the top of the dirt-removing rod will be displaced forward, so that the rubber hose on the dirt-removing scraper cannot be well fitted with the end face of the front camera and light source of the laryngoscope blade or the end face of the highly transparent closed end of the inner cavity of the laryngoscope blade, resulting in a virtual scraping phenomenon;

[0005] 2. Because the dirt-removing rod is pressed with a rotating downward force, the dirt-removing rod will rotate when it slides back and forth in the guide tube, causing the front end of the dirt-removing rod to rotate outward when the dirt-removing rod is pressed and moved back and forth, causing the dirt-removing rod in the limit cavity to rub against the limit clamp ring or the outer wall of the laryngoscope blade, causing the dirt-removing rod to jam; at the same time, due to the rotation of the dirt-removing rod, the rubber hose on the dirt-removing scraper rod at the top of the dirt-removing rod cannot fit well with the front end camera and light source end face of the laryngoscope blade or the high transparent closed end face of the inner cavity of the laryngoscope blade, resulting in a virtual scraping phenomenon;

[0006] 3. The dirt removal rod is composed of a whole metal wire. The length of the dirt removal rod on the laryngoscope used by adults is generally about 130 mm. In the mass production process, the dirt removal rod needs to be bent at multiple angles in coordination with the curved shape of the curved laryngoscope blade, which makes the processing technology complicated and the precision difficult to control. The mass industrial production has a low yield rate, low production efficiency and high production cost. Summary of the invention:

[0007] In order to make up for the technical defects of the above-mentioned visual laryngoscope, the purpose of the present invention is to add a guiding and cleaning device so that the flexible sleeve or flexible scraper strip on the cleaning rod is tightly fitted with the end face of the highly transparent closed end, and the cleaning rod and the cleaning rod are kept in parallel movement up and down by a reset spring, so that the blood and secretions stuck on the area where the camera or video laryngoscope blade collects airway images can be effectively scraped off, so that the camera can observe and collect airway images in real time, thereby ensuring the normal use of the video laryngoscope. A disposable video laryngoscope blade with a cleaning device.

[0008] The present invention discloses a disposable video laryngoscope blade with a dirt removal device, which comprises a disposable video laryngoscope blade body, the disposable video laryngoscope blade body comprises a highly transparent closed end of the laryngoscope blade inner cavity for a camera to collect images and a light source to pass through, and also comprises a guide dirt removal device, the guide dirt removal device comprises a guide tube, a pressing rod, a transmission rod, and a dirt removal rod, the guide tube is fixed on the outer wall of the rear end of the disposable video laryngoscope blade body, the axial direction of the guide tube is parallel to the end face of the highly transparent closed end of the laryngoscope blade inner cavity, one end of the pressing rod and one end of the transmission rod are slidably inserted in the guide tube; a pressing head is provided at the top end of the pressing rod on the outer side of the guide tube; the transmission rod on the outer side of the guide tube The end of the moving rod is split and plugged into and fixed on the dirt removing rod; a guide protrusion is provided on the outer wall of the disposable video laryngoscope blade body, and the length direction of the guide protrusion is parallel to the end face of the highly transparent closed end of the inner cavity of the laryngoscope blade; a guide groove corresponding to the guide protrusion is provided on the dirt removing rod, and the guide groove is slidably engaged with the guide protrusion, and the dirt removing rod is moved back and forth along the axial direction of the guide tube on the outer wall of the disposable video laryngoscope blade body through the guide groove slidably engaged with the guide protrusion; the front end of the dirt removing rod is bent and formed to be provided with a dirt removing scraper rod, and the dirt removing scraper rod is provided with a flexible sleeve or a flexible scraper strip that fits tightly with the end face of the highly transparent closed end of the inner cavity of the laryngoscope blade.

[0009] Preferably, a sleeve seat is fixedly provided on the outer wall of the rear end of the disposable video laryngoscope blade body above the guide protrusion, and the guide tube is separately plugged and fixed in the sleeve seat.

[0010] Preferably, the guide tube is a concentric reducer, and the inner cavity of the guide tube is divided into a pressing rod cavity and a transmission rod cavity. The diameter of the pressing rod cavity is larger than the diameter of the transmission rod cavity. The pressing rod is arranged in the pressing rod cavity and slides back and forth along the axial direction of the guide tube. The transmission rod is arranged in the transmission rod cavity and slides back and forth along the axial direction of the guide tube. One end of the transmission rod is separately plugged and fixed with one end of the pressing rod in the pressing rod cavity, and a return spring is sleeved on the transmission rod in the pressing rod cavity.

[0011] Preferably, the cross section of the flexible sleeve is in the shape of a water drop, and the tip of the flexible sleeve with the water drop cross section is tightly fitted with the end surface of the highly transparent closed end of the inner cavity of the laryngoscope blade.

[0012] Preferably, the disposable video laryngoscope blade body comprises a laryngoscope blade inner cavity and a tongue depressor, the rear end of the laryngoscope blade inner cavity is open, and the laryngoscope blade inner cavity is plugged into the extension arm.

[0013] Advantages of the present invention: The present invention uses the guiding effect of the guide tube to make the dirt-removing scraper on the dirt-removing rod and the end face of the highly transparent closed end of the inner cavity of the laryngoscope blade keep parallel and move up and down, so that the tip of the flexible sleeve and the end face of the highly transparent closed end of the inner cavity of the laryngoscope blade are closely fitted to remove dirt. The dirt-removing rod is pressed up and down with the thumb, and the thumb can move freely, which is flexible and labor-saving to operate and does not affect the stability of the handheld laryngoscope. The guide protrusion and the corresponding guide groove make the tip of the flexible sleeve close to the end face of the highly transparent closed end of the inner cavity of the laryngoscope blade during the back and forth movement of the dirt-removing rod. Description of the drawings:

[0014] Figure 1 It is an overall schematic diagram of the present invention.

[0015] Figure 2 Schematic diagram of the use of the present invention

[0016] Figure 3 It is a partial structural cross-sectional view of the present invention.

[0017] Figure 4 A cross-sectional view of the guide tube.

[0018] Figure 5 A cross-sectional view of the pressing rod cavity.

[0019] Figure 6 for Figure 1 Oblique view of .

[0020] Figure 7 It is a cross-sectional view of the dirt removal scraper rod. Specific implementation method:

[0021] Example 1: Figures 1 to 3 As shown, a disposable video laryngoscope blade with a dirt removal device comprises a disposable video laryngoscope blade body 1 and a guide dirt removal device 2, wherein the disposable video laryngoscope blade body 1 comprises a laryngoscope blade inner cavity 11 and a tongue depressor 12, wherein the rear end of the laryngoscope blade inner cavity 11 is open, and a highly transparent closed end 13 of the laryngoscope blade inner cavity is used for a camera to collect images and a light source to pass through, and a guide protrusion 14 is provided on the outer wall of the disposable video laryngoscope blade body 1, and the length direction of the guide protrusion 14 is parallel to the end face of the highly transparent closed end 13 of the laryngoscope blade inner cavity; a sleeve seat 15 is fixedly provided on the outer wall of the rear end of the disposable video laryngoscope blade body 1 above the guide protrusion 14, and the guide dirt removal device 2 comprises a guide tube 21, a pressing rod 22, a transmission rod 23, and a dirt removal rod 24, and the guide tube 21 is separately plugged and fixed in the sleeve seat 15, and the axial direction of the guide tube 21 is parallel to the end face of the highly transparent closed end 13 of the laryngoscope blade inner cavity; as shown Figure 4As shown, the guide tube 21 is a concentric reducer, and the inner cavity of the guide tube 21 is divided into a pressing rod cavity 211 and a transmission rod cavity 212. The diameter of the pressing rod cavity 211 is larger than the diameter of the transmission rod cavity 212. The pressing rod 22 is reciprocated along the axial direction of the guide tube 21 and is placed in the pressing rod cavity 211. The transmission rod 23 is reciprocated along the axial direction of the guide tube 21 and is placed in the transmission rod cavity 212. Figure 5 As shown, a guide key 213 is provided on the inner wall of the transmission rod cavity 212 along the axial direction of the guide tube 21, and a matching guide groove 231 corresponding to the guide key 213 is provided on the outer wall of the transmission rod 23; the transmission rod 23 will not rotate when sliding back and forth along the axial direction of the guide tube 21 in the guide tube 21 through the guide groove 231 corresponding to the guide key 213; one end of the transmission rod 23 is separately plugged and fixed with one end of the pressing rod 22 in the pressing rod cavity 211, and a return spring 25 is sleeved on the transmission rod 23 in the pressing rod cavity 211; a pressing head 26 is provided at the top end of the pressing rod 22 outside the guide tube 21; the end of the transmission rod 23 outside the guide tube 21 is separately plugged and fixed on the decontamination rod 24; as shown Figure 6 As shown, a guide groove 27 corresponding to the guide protrusion 14 is provided on the dirt removing rod 24, and the guide groove 27 is slidably engaged with the guide protrusion 14. The dirt removing rod 2 is moved back and forth along the axial direction of the guide tube 21 on the outer wall of the disposable video laryngoscope blade body 1 through the guide groove 27 that is slidably engaged with the guide protrusion 14. The guide protrusion 14 and the guide groove 27 are slidably matched to extend the guide sliding length of the dirt removing rod 24 for reciprocating movement, so that the dirt removing rod 24 will not move forward and swing left and right along the disposable video laryngoscope blade body 1 during the reciprocating movement, so that the dirt removing rod 24 is positioned stably and accurately during the reciprocating movement; the front end of the dirt removing rod 24 is bent and formed with a dirt removing scraper rod 28, and the dirt removing scraper rod 28 is provided with a flexible sleeve 29 that fits tightly with the end surface of the highly transparent closed end 13 of the inner cavity of the laryngoscope blade; as shown Figure 7 As shown, the cross section of the flexible sleeve 29 is in the shape of a water drop, and the tip of the flexible sleeve 29 in the shape of a water drop fits tightly with the end surface of the highly transparent closed end 13 of the inner cavity of the laryngoscope blade.

[0022] When in use, the disposable video laryngoscope blade body 1 is movably plugged into the extension arm. During use, when secretions adhere to the highly transparent closed end 13 of the inner cavity of the laryngoscope blade, the operator can press the pressing head 26, and the pressing rod 22, the transmission rod 23, and the dirt removing rod 24 are linked. The tip of the flexible sleeve 29 on the dirt removing scraper rod 28 scrapes the secretions on the end face of the highly transparent closed end 13 of the inner cavity of the laryngoscope blade, so that the camera can collect airway images in real time.

Claims

1. A disposable video laryngoscope blade with a dirt removal device, comprising a disposable video laryngoscope blade body, wherein the disposable video laryngoscope blade body comprises a highly transparent closed end of the laryngoscope blade inner cavity for a camera to collect images and a light source to pass through, characterized in that: It also includes a guide and dirt removal device, which includes a guide tube, a pressing rod, a transmission rod, and a dirt removal rod. The guide tube is fixed to the outer wall of the rear end of the disposable video laryngoscope blade body, and the axial direction of the guide tube is parallel to the end surface of the highly transparent closed end of the inner cavity of the laryngoscope blade. One end of the pressing rod and one end of the transmission rod are slidably inserted in the guide tube; a pressing head is provided at the top of the pressing rod outside the guide tube; the end of the transmission rod outside the guide tube is separately inserted and fixed on the dirt removal rod; a guide tube is provided on the outer wall of the disposable video laryngoscope blade body. A protrusion, the length direction of the guide protrusion is parallel to the end face of the highly transparent closed end of the inner cavity of the laryngoscope blade; a guide groove corresponding to the guide protrusion is provided on the dirt removing rod, and the guide groove is slidably engaged with the guide protrusion, and the dirt removing rod is moved back and forth along the axial direction of the guide tube on the outer wall of the disposable video laryngoscope blade body through the guide groove slidably engaged with the guide protrusion; the front end of the dirt removing rod is bent and formed to be provided with a dirt removing scraper rod, and the dirt removing scraper rod is provided with a flexible sleeve or a flexible scraper strip that fits tightly with the end face of the highly transparent closed end of the inner cavity of the laryngoscope blade.

2. A disposable video laryngoscope blade with a dirt removal device according to claim 1, characterized in that: A sleeve seat is fixedly provided on the outer wall of the rear end of the disposable video laryngoscope blade body above the guide protrusion, and the guide tube is split and plugged and fixed in the sleeve seat.

3. A disposable video laryngoscope blade with a dirt removal device according to any one of claims 1 or 2, characterized in that: The guide tube is a concentric reducer, and the inner cavity of the guide tube is divided into a pressing rod cavity and a transmission rod cavity. The diameter of the pressing rod cavity is larger than the diameter of the transmission rod cavity. The pressing rod is arranged in the pressing rod cavity and slides back and forth along the axial direction of the guide tube. The transmission rod is arranged in the transmission rod cavity and slides back and forth along the axial direction of the guide tube. One end of the transmission rod is separately plugged and fixed with one end of the pressing rod in the pressing rod cavity, and a return spring is sleeved on the transmission rod in the pressing rod cavity.

4. The disposable video laryngoscope blade with a dirt removal device according to claim 1, characterized in that: The cross section of the flexible sleeve is in the shape of a water drop, and the tip of the flexible sleeve with the water drop cross section is tightly fitted with the end surface of the highly transparent closed end of the inner cavity of the laryngoscope blade.

5. The disposable video laryngoscope blade with a dirt removal device according to claim 1, characterized in that: The disposable video laryngoscope blade main body comprises a laryngoscope blade inner cavity and a tongue depressor. The rear end of the laryngoscope blade inner cavity is open, and the laryngoscope blade inner cavity is plugged into the extension arm.

Images