A disposable nasal adjustable local anesthetic spray

Abstract

This utility model relates to the field of medical device technology, and in particular to a disposable nasal adjustable local anesthetic sprayer, comprising: a spray conduit including a spray end, an infusion end, and a delivery section connecting the spray end and the infusion end respectively; an anesthetic delivery line disposed in the spray conduit, the anesthetic delivery line passing through the infusion end and the delivery section and then communicating with the spray end; a spray device including a first spray element disposed in the inner cavity of the spray end and a second spray element disposed on the outer wall of the spray end; an inflation assembly including an airbag surrounding the delivery section near the spray end, an inflation interface section disposed on the delivery section away from the spray end, and an inflation line passing through the inflation interface section and the delivery section and then communicating with the airbag; and a monitoring device interface section disposed on the outer wall of the infusion end.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a disposable nasal adjustable local anesthetic spray. Background Technology

[0002] Tracheal management is an essential skill for anesthesiologists and a fundamental procedure during the induction of general anesthesia. Even highly trained anesthesiologists may encounter anticipated or unexpected tracheal intubation failures, clinically known as airway difficulties, with an incidence rate as high as 5-10%. Most of these failures are due to congenital or acquired abnormalities in the airway anatomy that make it difficult for the laryngoscope to expose the glottis, thus preventing the successful completion of tracheal intubation.

[0003] The anticipated difficult airway necessitated awake endotracheal intubation due to the inability to perform routine mask ventilation. Throughout the intubation process, the patient remained conscious and maintained spontaneous breathing, requiring thorough local mucosal anesthesia to suppress stimulation and reflexes in the pharynx and glottis area caused by intubation. Current mucosal anesthesia methods include submucosal injection of local anesthetics, local nerve blocks of the head and face, inhalation of local anesthetic aerosols, and intranasal irrigation of local anesthetics, but a device that can precisely target the supraglottic region and simultaneously provide nebulized local anesthetic inhalation to the glottic structure is lacking. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and to provide a disposable nasal adjustable local anesthetic spray, comprising:

[0005] A spray conduit includes a spray end, an infusion end, and a delivery section that connects the spray end and the infusion end respectively;

[0006] An anesthetic delivery line is configured in the spray conduit, and the anesthetic delivery line passes through the infusion end and the delivery section and is connected to the spray end;

[0007] A spraying device includes a first spraying element disposed in the inner cavity of the spraying end and a second spraying element disposed on the outer wall of the spraying end;

[0008] An inflation assembly includes an airbag arranged around the conveying section on the side near the spray end, an inflation interface section arranged on the conveying section on the side away from the spray end, and an inflation pipe that passes through the inflation interface section and the conveying section and connects to the airbag.

[0009] The monitoring device interface section is disposed on the outer wall of the injection end.

[0010] Furthermore, the end of the injection end that is not connected to the delivery section is provided with a thread that matches the connector of the spiral syringe.

[0011] Furthermore, the spray conduit is 15cm long and has an outer diameter of 5mm.

[0012] Furthermore, the spray cannula is made of elastic medical-grade silicone.

[0013] Furthermore, the first spray component is a medical sponge.

[0014] Furthermore, the second spray element consists of several through holes provided on the outer wall of the spray end.

[0015] Furthermore, the inflation pipeline includes a first inflation pipeline disposed in the spray duct and a second inflation pipeline disposed in the inflation interface section; wherein, the second inflation pipeline passes through the outer wall of the delivery section and is connected to the first inflation pipeline; the first inflation pipeline passes through the inner wall of the delivery end and is connected to the airbag.

[0016] Furthermore, the monitoring device interface section is equipped with a monitoring pipeline, which penetrates the outer wall of the infusion end and is connected to the anesthetic delivery pipeline.

[0017] Furthermore, the interface section of the monitoring device is connected to the carbon dioxide monitor via a connecting cable.

[0018] Furthermore, the side of the spray end that is not connected to the conveying section is treated with a rounded surface.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The present invention relates to a disposable nasal adjustable local anesthetic sprayer with an inflatable air bladder on the outer wall of the spray tube and a monitoring device interface section at the infusion end that can be connected to a carbon dioxide monitor. The position or angle of the spray tube can be adjusted by monitoring the carbon dioxide monitor, and the inflated air bladder can be used to achieve positioning and fixation, which can effectively improve the accuracy of glottic guidance.

[0021] 2. This utility model provides a disposable nasal adjustable local anesthetic sprayer that uses an expanded medical sponge at the front end to atomize and spray the medication evenly, resulting in less irritation, higher patient tolerance, and significantly reduced dosage of local anesthetic medication.

[0022] 3. The spray device of this utility model, a disposable nasal adjustable local anesthetic sprayer, has an air bladder that is not inflated during nasal insertion and a medical sponge that is dry and contracted. After use, the air bladder is retracted and is in a deflated state, and the sponge that has absorbed the anesthetic fluid is also in a moist and contracted state, which greatly reduces the patient's discomfort during nasal insertion and removal. Attached Figure Description

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram illustrating the expansion and positioning of a disposable nasal adjustable local anesthetic spray according to this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a disposable nasal adjustable local anesthetic sprayer when not in use.

[0026] Figure 3 This utility model relates to a disposable nasal adjustable local anesthetic spray. Figure 1 Cross-sectional view at point aa;

[0027] Figure 4 This utility model relates to a disposable nasal adjustable local anesthetic spray. Figure 1 Cross-sectional view at point bb.

[0028] Figure Labels

[0029] 1: Spray duct;

[0030] 11: Spraying end; 12: Injection end; 13: Conveying section;

[0031] 121: Thread;

[0032] 2: Anesthetic delivery tubing;

[0033] 3: Spraying device;

[0034] 31: First spray component; 32: Second spray component;

[0035] 4: Inflatable components;

[0036] 41: Airbag; 42: Inflation interface section; 43: First inflation line; 44: Second inflation line;

[0037] 5: Monitoring device interface section. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.

[0039] To keep the drawings concise, only the parts relevant to the invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of components with the same structure or function is shown schematically, or only one is labeled. In this document, "one" can mean not only "only one" but also "more than one".

[0040] First Embodiment

[0041] Please see Figure 1-4 The technical solution of a disposable nasal adjustable local anesthetic spray provided in this embodiment includes the following:

[0042] The spray conduit 1 includes a spray end 11 (with a hollow spray end cavity inside), an infusion end 12, and a delivery section 13 that connects the spray end 11 and the infusion end 12 respectively.

[0043] The anesthetic delivery line 2 is disposed in the spray conduit 1. The anesthetic delivery line 2 passes through the infusion end 12 and the delivery section 13 and is connected to the spray end 11.

[0044] The spraying device 3 includes a first spraying element 31 disposed in the inner cavity of the spraying end 11 and a second spraying element 32 disposed on the outer wall of the spraying end 11;

[0045] The inflation assembly 4 includes an airbag 41 encircling the conveying section 13 on the side near the spray end 11, an inflation interface section 42 on the conveying section 13 on the side away from the spray end 11, and an inflation pipe passing through the inflation interface section 42 and the conveying section 13 and connecting to the airbag 41.

[0046] The monitoring device interface section 5 is disposed on the outer wall of the injection end 12.

[0047] In a specific implementation, the infusion end 12 of the spray conduit 1 is connected to the spiral syringe containing the anesthetic agent. Therefore, the end of the infusion end 12 that is not connected to the delivery section 13 is provided with a thread 121 that matches the connector of the spiral syringe. The connection of the two threads 121 can better improve the tightness of the connection.

[0048] In specific implementation, the length of the spray tube 1 is 15cm; the outer diameter of the spray tube 1 is 5mm, but it is not limited to this size. Other reasonable sizes that can be inserted through the nose are all within the protection scope of this utility model.

[0049] As attached Figure 1The spray conduit 1 shown consists of an integrally connected spray end 11, a delivery section 13, and an infusion end 12, from left to right. The conduit extending from the infusion end 12 and the delivery section 13 to the spray end 11 is an anesthetic delivery conduit 2 (extending along the center line of the spray conduit 1). In addition, the spray conduit 1 is made of elastic medical silicone.

[0050] As attached Figure 1 The outwardly expanding protruding area on the left side of the conveying section 13 is the inflated airbag 41. Figure 2 The corresponding airbag 41 in the middle area is in its deflated state before use or after gas retraction. The inflation interface section 42 is located slightly above and to the right of the delivery section 13. The hollow inner cavity of the inflation interface section 42 is the second inflation pipe 44. Figure 1 The pipeline above the anesthetic delivery pipeline 2 in the middle delivery section 13 is the first inflation pipeline 43, and the second inflation pipeline 44 penetrates the outer wall of the delivery section 13 and is connected to the first inflation pipeline 43; the first inflation pipeline 43 penetrates the inner wall of the delivery end and is connected to the airbag 41.

[0051] In specific implementation, the method of setting / connecting the airbag 41 is not specifically limited in this application. For example, the following can be adopted: an inflatable airbag sheet is ringed around the outer wall of the spray duct 1 (the thickness of the airbag sheet is sufficient to meet the expansion tension requirements), the outermost ring of the airbag sheet is heat-pressed and fastened to the outer wall of the spray duct 1, etc. Other reasonable setting methods are within the protection scope of this application.

[0052] Specifically, in order to achieve fine atomization of the anesthetic agent delivered through the anesthetic delivery tube 2, and to minimize the foreign body sensation when inserted through the nasal cavity, the first spray component 31 is designed as a medical sponge, and the second spray component 32 consists of several through holes on the outer wall of the spray end 11. After the medical sponge absorbs enough anesthetic, it expands and continues to be filled with anesthetic under pressure. The anesthetic in the medical sponge forms a fine mist and is evenly sprayed out along the sponge pores and the through holes on the outer wall of the spray end 11.

[0053] Specifically, the monitoring device interface section 5 has a monitoring pipeline inside, which passes through the outer wall of the infusion end 12 and is connected to the anesthetic delivery pipeline 2. The monitoring device interface section 5 is connected to the carbon dioxide monitor via a connecting line. In practice, based on the reading of the carbon dioxide monitor, the operator can adjust the position and angle of the laryngoscope to guide the tip of the spray tube to the area where the carbon dioxide concentration rises most significantly, which can more accurately identify and locate the glottis. This is common knowledge in this technical field, so it will not be elaborated further.

[0054] Specifically, in order to protect the patient's nasal mucosa, the side of the spray end 11 that is not connected to the delivery section 13 is treated with a rounded surface.

[0055] After insertion through the nose, this device can easily adjust the angle of the local anesthetic spray by monitoring with a carbon dioxide monitor and adjusting the inflation of the air bag 41. At the same time, the medical sponge head at the front of the device can evenly atomize and spray the local anesthetic near the glottis, suppressing the active reflexes of the glottis. This can easily solve the problem of key operations in difficult airway intubation in a short time.

[0056] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A disposable nasal adjustable local anesthetic spray, characterized in that, include: A spray conduit includes a spray end, an infusion end, and a delivery section that connects the spray end and the infusion end respectively; An anesthetic delivery line is configured in the spray conduit, and the anesthetic delivery line passes through the infusion end and the delivery section and is connected to the spray end; A spraying device includes a first spraying element disposed in the inner cavity of the spraying end and a second spraying element disposed on the outer wall of the spraying end; An inflation assembly includes an airbag arranged around the conveying section on the side near the spray end, an inflation interface section arranged on the conveying section on the side away from the spray end, and an inflation pipe that passes through the inflation interface section and the conveying section and connects to the airbag. The monitoring device interface section is disposed on the outer wall of the injection end.

2. The disposable nasal adjustable local anesthetic spray according to claim 1, characterized in that: The end of the injection end that is not connected to the delivery section is provided with a thread that matches the connector of the spiral syringe.

3. The disposable nasal adjustable local anesthetic spray according to claim 1, characterized in that: The spray conduit is 15cm long and has an outer diameter of 5mm.

4. The disposable nasal adjustable local anesthetic spray according to claim 1, characterized in that: The spray cannula is made of elastic medical-grade silicone.

5. A disposable nasal adjustable local anesthetic spray according to claim 1, characterized in that: The first spray component is a medical sponge.

6. A disposable nasal adjustable local anesthetic spray according to claim 1, characterized in that: The second spray element consists of several through holes on the outer wall of the spray end.

7. A disposable nasal adjustable local anesthetic spray according to claim 1, characterized in that: The inflation pipeline includes a first inflation pipeline disposed in the spray duct and a second inflation pipeline disposed in the inflation interface section; wherein, the second inflation pipeline passes through the outer wall of the delivery section and is connected to the first inflation pipeline; the first inflation pipeline passes through the inner wall of the delivery section and is connected to the airbag.

8. A disposable nasal adjustable local anesthetic spray according to claim 1, characterized in that: The monitoring device interface section is equipped with a monitoring pipeline, which passes through the outer wall of the infusion end and is connected to the anesthetic delivery pipeline.

9. A disposable nasal adjustable local anesthetic spray according to claim 1, characterized in that: The interface section of the monitoring device is connected to the carbon dioxide monitor via a connecting cable.

10. A disposable nasal adjustable local anesthetic spray according to claim 1, characterized in that: The side of the spray nozzle that is not connected to the conveying section is treated with a rounded surface.

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