A tracheal intubation

Abstract

The present invention relates to the technical field of medical supplies and discloses an endotracheal cannula, comprising an endotracheal cannula body, on which is mounted a spray unit. The spray unit comprises a spray mechanism and a protective mechanism. The spray mechanism performs a spray function when the endotracheal cannula body is removed, and the protective mechanism is used to protect the spray mechanism. The present invention provides the endotracheal cannula with a spray mechanism, so that when the endotracheal cannula is removed, the spray unit sprays an anesthetic, thereby effectively alleviating discomfort caused by the removal. The protective mechanism is provided to protect the spray mechanism and can be selectively opened as needed to prevent the spray mechanism from being contaminated.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical supplies, and in particular relates to an endotracheal cannula. Background Art

[0002] When using the tracheal tube, the trachea needs to be anesthetized to prevent tracheal discomfort when the tracheal tube is inserted into the trachea. When the tracheal tube is removed, the anesthetic may become ineffective or its effect may be reduced, which may also cause tracheal discomfort. Therefore, it is necessary to perform anesthesia when the tracheal tube is removed.

[0003] The Chinese patent application with authorization publication number CN212187397U discloses a tracheal intubation tube, in which an anesthetic bag is fixedly connected to the outside of the catheter. The inner cavity of the anesthetic bag is a drug storage cavity a. The inner end of the infusion tube is connected to the drug storage cavity a, and the outer end of the infusion tube is an injection end. Anesthetic is injected, and the anesthetic flows through the infusion tube to the drug storage cavity a, and then flows out from the infusion hole b of the anesthesia bag to anesthetize the trachea.

[0004] However, this technical solution still has at least the following drawbacks: While the anesthesia bag installation position meets the requirements and allows for tracheal anesthesia during endotracheal tube removal, this solution does not protect the infusion port b, which is completely exposed, potentially posing a risk of anesthetic loss and contamination. In light of these shortcomings, the present invention has been proposed. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a tracheal cannula. By setting a spray mechanism on the tracheal cannula, anesthetic is sprayed out by the spray unit when the tracheal cannula is removed, effectively alleviating the discomfort caused by the removal; the spray mechanism is protected by setting a protective mechanism, and it is selectively opened according to needs to prevent the spray mechanism from being contaminated.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A tracheal cannula comprises a tracheal cannula body, on which a spray unit is mounted. The spray unit comprises a spray mechanism and a protective mechanism. When the tracheal cannula body is pulled out, the spray unit performs a spray function through the spray mechanism. The protective mechanism is used to protect the spray mechanism.

[0008] As a preferred embodiment of the present invention, the spray unit also includes a collecting chamber, which is movably connected to the outside of the tracheal tube body. The injection mechanism includes a nozzle, which is located outside the collecting chamber. The protective mechanism includes a sealing component, which is used to seal the nozzle. A delivery pipe is installed on one side of the collecting chamber, and the delivery pipe is used to deliver the medicine.

[0009] As a preferred embodiment of the present invention, the closed component includes a flow chamber, which is fixedly installed on the outside of the collecting chamber and is connected to the collecting chamber. An external connecting ring is fixedly installed on the outside of the flow chamber, and a slot is provided on the external connecting ring. The closed component also includes a connecting pipe, one end of which is connected to the flow chamber and the other end is connected to the nozzle, and one end of the nozzle is adapted to the slot.

[0010] As a preferred embodiment of the present invention, the spray unit also includes a mounting tube, which is sleeved on the outside of the endotracheal tube body, and the protective mechanism is arranged on the mounting tube. The spray mechanism includes a nozzle, which is arranged on the outside of the mounting tube, and the protective mechanism is used to seal the nozzle.

[0011] As a preferred embodiment of the present invention, the protective mechanism includes a symmetrically arranged protective shell, which is movably sleeved on the mounting tube. The protective mechanism also includes a first spring, which is movably sleeved on the mounting tube. The elastic force of the first spring acts on the protective shell to seal the nozzle.

[0012] As a preferred embodiment of the present invention, the spray unit further includes an injection unit connected thereto, an air duct and a drug duct being connected between the injection unit and the spray unit, and the injection unit injects air and drug into the spray unit through the air duct and the drug duct.

[0013] As a preferred embodiment of the present invention, the injection unit includes an injection tube, in which a first chamber and a second chamber are opened, a first connecting tube is installed between the first chamber and the air duct, and a second connecting tube is installed between the second chamber and the medicine duct, and a first injection mechanism and a second injection mechanism are respectively provided in the first chamber and the second chamber, the first injection mechanism injects air through the first connecting tube, and the second injection mechanism injects medicine through the second connecting tube.

[0014] As a preferred embodiment of the present invention, an air cushion is installed inside the protective shell, a valve is installed on one side of the air cushion, the valve is connected to the air duct, the first injection mechanism injects air into the air cushion through the valve to expand the air cushion, the nozzle is movably connected to the air cushion, a connecting pipe is installed at one end of the nozzle, and the connecting pipe is connected to the medicine duct.

[0015] As a preferred embodiment of the present invention, the first injection mechanism includes a first piston, which is slidingly and sealingly connected in the first chamber. A movable groove is provided in the first piston, and a piston block is movably installed in the movable groove. A second spring is installed between the piston block and the movable groove.

[0016] As a preferred embodiment of the present invention, the second injection mechanism includes a second piston, which is slidingly and sealingly connected in the second chamber. A locking assembly is provided on the second piston, and the locking assembly includes an insertion rod, which is movably inserted into the second piston and one end extends to the outside of the injection tube. A guide rod is fixedly installed on the other end of the insertion rod. A guide groove is provided at one end of the first piston, and the guide groove is adapted to the guide rod. A third spring is installed inside the second piston, and the third spring is fixedly connected to the insertion rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a spray mechanism for the tracheal cannula, so that when the tracheal cannula is removed, the spray unit sprays out anesthetic, effectively alleviating the discomfort caused by the removal.

[0019] The present invention protects the injection mechanism by arranging a protection mechanism, and selectively opens the protection mechanism according to demand to prevent the injection mechanism from being contaminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an endotracheal tube according to embodiment 2 of the present invention;

[0021] Figure 2 This is a structural diagram of the collecting chamber in Example 2 of the present invention;

[0022] Figure 3 Schematic diagram of the internal structure of the manifold in Example 2 of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the connecting pipe in Example 2 of the present invention;

[0024] Figure 5 This is a schematic diagram of the overall structure of an endotracheal tube according to embodiment 3 of the present invention;

[0025] Figure 6 This is a schematic structural diagram of the first spring in Example 3 of the present invention;

[0026] Figure 7 This is a schematic diagram of the protective shell in the open state in Example 3 of the present invention;

[0027] Figure 8 This is a structural diagram of the first connecting pipe in Example 3 of the present invention;

[0028] Figure 9 Schematic diagram of the internal structure of the injection tube in Example 3 of the present invention;

[0029] Figure 10 Schematic diagram of the internal structure of the first piston in Example 3 of the present invention.

[0030] Reference numerals:

[0031] 100. Tracheal tube body;

[0032] 200, collecting chamber; 201, flow chamber; 202, external ring; 203, slot; 204, connecting pipe; 205, nozzle; 206, delivery pipe;

[0033] 300. Mounting tube; 301. First spring; 302. Protective shell; 303. Air cushion; 304. Valve; 305. Nozzle; 306. Connecting tube; 307. Air duct; 308. Drug duct; 309. First connecting tube; 310. Second connecting tube; 311. Injection tube; 312. First chamber; 313. Second chamber; 314. First piston; 315. Movable groove; 316. Second spring; 317. Piston block; 318. Guide groove; 319. Second piston; 320. Insert rod; 321. Third spring; 322. Guide rod. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0035] Example 1

[0036] like Figures 1 to 10 As shown, a tracheal tube includes a tracheal tube body 100, on which a spray unit is installed. The spray unit includes a spray mechanism and a protective mechanism. When the tracheal tube body 100 is pulled out, the spray unit performs a spray function through the spray mechanism, and the protective mechanism is used to protect the spray mechanism.

[0037] Example 2

[0038] like Figures 1 to 4 As shown, in a specific embodiment, the spray unit also includes a collection chamber 200, which is movably connected to the outside of the endotracheal tube body 100. The spray mechanism includes a nozzle 205, which is located outside the collection chamber 200. The protection mechanism includes a sealing component, which is used to seal the nozzle 205. A delivery tube 206 is installed on one side of the collection chamber 200 for delivering the drug. In this configuration, the drug includes an anesthetic to prevent throat discomfort in the patient when the endotracheal tube body 100 is removed.

[0039] like Figures 1 to 4As shown, further, the closed component includes a flow chamber 201, which is fixedly mounted on the outside of the collecting chamber 200 and communicates with the collecting chamber 200. An external connecting ring 202 is fixedly mounted on the outside of the flow chamber 201, and a card slot 203 is provided on the external connecting ring 202. The closed component also includes a pipe 204, one end of which is connected to the flow chamber 201 and the other end is connected to the nozzle 205, and one end of the nozzle 205 is adapted to the card slot 203. In this configuration, the end face of the nozzle 205 is tilted, so that when the nozzle 205 is in contact with the card slot 203, the axial direction of the nozzle 205 itself forms an acute angle with the direction of the side of the card slot 203 that is in contact, so as to better support the nozzle 205.

[0040] The implementation principle of an endotracheal intubation in this embodiment is as follows: when spraying is not performed, the connecting pipe 204 is bent and the nozzle 205 is placed against one side of the slot 203. At this time, the nozzle 205 is protected. When the endotracheal intubation body 100 needs to be removed, a spraying operation is required. At this time, the medicine is injected into the delivery pipe 206 through a syringe. The medicine enters the collecting chamber 200 through the delivery pipe 206 and is delivered to the flow chamber 201. Since the connecting pipe 204 is in a bent state, the flow volume of the bent part is small. Continuous delivery of the medicine increases the pressure in the flow chamber 201, and then the bent part is straightened under the action of pressure. At the same time, the nozzle 205 also moves to be exposed. The medicine is sprayed out through the nozzle 205, thereby achieving an anesthetic effect.

[0041] Example 3

[0042] like Figures 5 to 7 FIG. 1 shows another specific embodiment of an endotracheal tube according to the present application. The spray unit of the endotracheal tube further includes a mounting tube 300, which is sleeved onto the outside of the endotracheal tube body 100. A protective mechanism is provided on the mounting tube 300. The spray mechanism includes a nozzle 305, which is provided on the outside of the mounting tube 300. The protective mechanism is used to seal the nozzle 305. In this configuration, multiple nozzles 305 are provided to ensure more uniform spraying of the agent.

[0043] like Figures 6 and 7 As shown, the protective mechanism further includes a symmetrically arranged protective shell 302, which is movably connected to the mounting tube 300. The protective mechanism also includes a first spring 301, which is movably connected to the mounting tube 300. The elastic force of the first spring 301 acts on the protective shell 302 to seal the nozzle 305. In this arrangement, the first spring 301 is always in a compressed state, so that the protective shell 302 always protects the nozzle 305.

[0044] like Figure 5 、 Figure 7 、 Figure 8As shown, the spray unit further includes an injection unit connected thereto, an air conduit 307 and a drug conduit 308 are connected between the injection unit and the spray unit, and the injection unit injects air and drug into the spray unit through the air conduit 307 and the drug conduit 308.

[0045] like Figures 8 to 10 As shown, the injection unit further includes an injection tube 311, which defines a first chamber 312 and a second chamber 313. A first connecting tube 309 is installed between the first chamber 312 and the air duct 307, and a second connecting tube 310 is installed between the second chamber 313 and the drug duct 308. A first injection mechanism and a second injection mechanism are respectively installed in the first chamber 312 and the second chamber 313. The first injection mechanism injects air through the first connecting tube 309, and the second injection mechanism injects drug through the second connecting tube 310. In this configuration, detachable connectors are installed between the first connecting tube 309 and the air duct 307, and between the second connecting tube 310 and the drug duct 308.

[0046] like Figures 7 and 8 As shown, an air cushion 303 is installed within the protective shell 302. A valve 304 is installed on one side of the air cushion 303, which is connected to an air conduit 307. A first injection mechanism injects air into the air cushion 303 through the valve 304 to expand the air cushion 303. A nozzle 305 is movably connected to the air cushion 303. A connecting tube 306 is installed on one end of the nozzle 305, which is connected to a drug conduit 308. In this configuration, when the air cushion 303 expands, it opens the protective shell 302, exposing the nozzle 305.

[0047] like Figures 8 to 10 As shown, the first injection mechanism further includes a first piston 314, which is slidably and sealingly connected within the first chamber 312. A movable groove 315 is defined within the first piston 314, within which a piston block 317 is movably mounted. A second spring 316 is mounted between the piston block 317 and the movable groove 315. In this arrangement, the piston block 317 and the second spring 316 adapt to air pressure, preventing the air cushion 303 from exploding due to excessive air injection by the first injection mechanism.

[0048] like Figures 8 to 10As shown, further, the second injection mechanism includes a second piston 319, which is slidingly and sealingly connected to the second chamber 313. A locking assembly is provided on the second piston 319, and the locking assembly includes an insertion rod 320. The insertion rod 320 is movably inserted into the second piston 319, and one end extends to the outside of the injection tube 311. The other end of the insertion rod 320 is fixedly installed with a guide rod 322. A guide groove 318 is provided at one end of the first piston 314, and the guide groove 318 is adapted to the guide rod 322. A third spring 321 is installed inside the second piston 319, and the third spring 321 is fixedly connected to the insertion rod 320. In this configuration, the first piston 314 is moved so that the side wall of the first piston 314 blocks the first connecting pipe 309. At this time, the air cushion 303 remains in an expanded state. While the first piston 314 moves, it drives the guide rod 322 to move through the guide groove 318. The guide rod 322 drives the insertion rod 320 to move so that the second piston 319 can move. At this time, the first piston 314 presses against the second piston 319 and drives it to move. The second piston 319 delivers the medicine to the nozzle 305 through the second connecting pipe 310 and the medicine conduit 308.

[0049] The implementation principle of the endotracheal intubation of this embodiment is as follows: when spraying is not in progress, the elastic force of the first spring 301 acts on the protective shell 302, closing the protective shell 302 and sealing the nozzle 305. When spraying is required, the first piston 314 is pressed. At this time, the elastic force of the third spring 321 pushes the insertion rod 320 into the side wall of the injection tube 311, so that the second piston 319 remains stationary. As the first piston 314 moves, air is delivered to the air cushion 303 through the first connecting pipe 309 and the air duct 307. At this time, the air cushion 303 expands and opens the protective shell 302, thereby exposing the nozzle 305.

[0050] Continue to move the first piston 314 so that the side wall of the first piston 314 blocks the first connecting pipe 309. At this time, the air cushion 303 remains in an expanded state. While the first piston 314 moves, it drives the guide rod 322 to move through the guide groove 318. The guide rod 322 drives the insertion rod 320 to move so that the second piston 319 can move. At this time, the first piston 314 presses against the second piston 319 and drives it to move. The second piston 319 delivers the medicine to the nozzle 305 through the second connecting pipe 310 and the medicine conduit 308.

Claims

1. A tracheal tube, comprising a tracheal tube body (100), characterized in that: A spray unit is mounted on the tracheal tube body (100), the spray unit comprising a spray mechanism and a protection mechanism. The spray unit performs a spray function through the spray mechanism when the tracheal tube body (100) is pulled out, and the protection mechanism is used to protect the spray mechanism. The spray unit further includes a collecting chamber (200), the collecting chamber (200) being movably sleeved on the outside of the endotracheal tube body (100), the spray mechanism including a nozzle (205), the nozzle (205) being located outside the collecting chamber (200), the protective mechanism including a sealing component, the sealing component being used to seal the nozzle (205), a delivery tube (206) being installed on one side of the collecting chamber (200), the delivery tube (206) being used to deliver medicine; The closed component includes a flow chamber (201), the flow chamber (201) is fixedly mounted on the outside of the flow collecting chamber (200) and is in communication with the flow collecting chamber (200), an external connecting ring (202) is fixedly mounted on the outside of the flow chamber (201), a card slot (203) is provided on the external connecting ring (202), and the closed component also includes a connecting pipe (204), one end of the connecting pipe (204) is connected to the flow chamber (201), and the other end is connected to the nozzle (205), and one end of the nozzle (205) is adapted to the card slot (203); When spraying is not performed, the connecting pipe (204) is bent and the nozzle (205) is placed against one side of the card slot (203). When spraying is required, the medicine is injected into the delivery pipe (206) through a syringe. The medicine enters the collecting chamber (200) through the delivery pipe (206) and is delivered to the flow chamber (201). Since the connecting pipe (204) is in a bent state, the flow volume of the bent part is small. Continuous delivery of the medicine increases the pressure in the flow chamber (201), and the bent part is straightened under the action of pressure.

2. The endotracheal tube according to claim 1, characterized in that: The spray unit may also adopt other structures, including a mounting tube (300), wherein the mounting tube (300) is sleeved on the outside of the endotracheal tube body (100), the protective mechanism is arranged on the mounting tube (300), the spray mechanism includes a nozzle (305), the nozzle (305) is arranged on the outside of the mounting tube (300), and the protective mechanism is used to seal the nozzle (305); The protection mechanism comprises a symmetrically arranged protection shell (302), wherein the protection shell (302) is movably sleeved on the mounting tube (300), and the protection mechanism further comprises a first spring (301), wherein the first spring (301) is movably sleeved on the mounting tube (300), and the elastic force of the first spring (301) acts on the protection shell (302) so that the protection shell (302) seals the nozzle (305); The spray unit further includes an injection unit connected thereto, an air conduit (307) and a medicine conduit (308) being connected between the injection unit and the spray unit, the injection unit including an injection tube (311), a first chamber (312) and a second chamber (313) being provided in the injection tube (311), a first injection mechanism and a second injection mechanism being provided in the first chamber (312) and the second chamber (313), respectively; An air cushion (303) is installed inside the protective shell (302), and a valve (304) is installed on one side of the air cushion (303), and the valve (304) is communicated with an air duct (307). The first injection mechanism injects air into the air cushion (303) through the valve (304) to expand the air cushion (303). The nozzle (305) is movably connected to the air cushion (303), and a connecting pipe (306) is installed at one end of the nozzle (305). The connecting pipe (306) is communicated with a medicine duct (308). Air is transported to the air cushion (303) through the air duct (307). At this time, the air cushion (303) expands and opens the protective shell (302), thereby exposing the nozzle (305).

3. The endotracheal tube according to claim 2, characterized in that: The injection unit injects air and medicine into the spray unit through the air conduit (307) and the medicine conduit (308).

4. The endotracheal tube according to claim 3, characterized in that: A first connecting tube (309) is installed between the first chamber (312) and the air conduit (307), and a second connecting tube (310) is installed between the second chamber (313) and the medicine conduit (308). The first injection mechanism injects air through the first connecting tube (309), and the second injection mechanism injects medicine through the second connecting tube (310).

5. The endotracheal tube according to claim 4, characterized in that: The first injection mechanism includes a first piston (314), the first piston (314) is slidingly and sealingly connected in the first chamber (312), a movable groove (315) is provided in the first piston (314), a piston block (317) is movably installed in the movable groove (315), and a second spring (316) is installed between the piston block (317) and the movable groove (315).

6. The endotracheal tube according to claim 5, characterized in that: The second injection mechanism includes a second piston (319), which is slidably sealed and connected to the second chamber (313). A locking assembly is provided on the second piston (319), and the locking assembly includes an insertion rod (320). The insertion rod (320) is movably inserted into the second piston (319), and one end of the insertion rod extends to the outside of the injection tube (311). A guide rod (322) is fixedly installed on the other end of the insertion rod (320). A guide groove (318) is provided at one end of the first piston (314), and the guide groove (318) is adapted to the guide rod (322). A third spring (321) is installed inside the second piston (319), and the third spring (321) is fixedly connected to the insertion rod (320).

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