Diameter-adjustable airway surface anesthesia tube for fiber bronchoscope

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a diameter-adjustable fiber bronchoscope airway surface anesthesia tube which comprises a flexible plate, a locking block and an adapter, a through hole is formed in the position, close to the bottom, of the flexible plate, and the flexible plate can be wound in the radial direction to form a diameter-adjustable catheter. The catheter with the adjusted diameter can be inserted into the biopsy channel and shaped through the inner wall of the biopsy channel, the catheter is positioned when the catheter goes deep into the biopsy channel and the locking block makes contact with the biopsy channel, the adapter is connected with the top end of the catheter in an interference fit mode, and the adapter is used for being connected with a syringe needle to inject anesthetics. Therefore, according to the airway surface anesthesia tube with the structure, the traditional catheter structure with a fixed tube diameter is abandoned, the airway surface anesthesia tube is formed by winding the flexible plate, and the biopsy channel on the fiber bronchus is shaped, so that the suitability and the efficiency of the catheter in use are improved, and the defects in the prior art are overcome.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically designing an adjustable diameter fiber optic bronchoscope airway anesthesia tube. Background Technology

[0002] Airway anesthetic tubes are used to assist fiberoptic bronchoscopy in performing endotracheal intubation on awake patients. Currently, the biopsy channel size of fiberoptic bronchoscopy used for children and adults differs. To improve the anesthetic effect, one existing method is to equip the bronchoscopes with airway anesthetic tubes that are compatible with both children's and adults' fiberoptic bronchoscopy. However, this increases the cost of using airway anesthetic tubes and medical waste. Another method is to only equip the bronchoscopes with airway anesthetic tubes that are compatible with adult fiberoptic bronchoscopy. Utility Model Content

[0003] The purpose of this invention is to provide a fiber optic bronchoscope airway anesthetic tube with adjustable diameter to address the shortcomings of existing technologies.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An adjustable diameter fiberoptic bronchoscope airway surface ablation tube: comprising a flexible plate, a locking block, and an adapter, wherein the flexible plate has a through hole near the bottom and can be radially wound to form an adjustable diameter tube, the locking block can be fixed near the top of the tube to position the tube, and the adapter can be fixed at the top of the tube to connect to a syringe needle.

[0006] As a preferred embodiment of this application, the two ends of the flexible plate are fan-shaped surfaces with inwardly tapered side edges, and the flexible plate is radially wound to form a variable diameter conduit with tapered ends.

[0007] As a preferred embodiment of this application, the height of the fan-shaped surface is 1-2 mm, and the through holes are evenly distributed on the fan-shaped surface.

[0008] As a preferred embodiment of this application, the locking block includes clamp plate A and clamp plate B, which can be combined to form a hollow cone-shaped block. The cone apex size of the cone-shaped block is adapted to the biopsy channel inlet size of the fiberoptic bronchoscope.

[0009] As a preferred embodiment of this application, the adapter includes various models, each adapted to conduits of different diameters.

[0010] As a preferred embodiment of this application, the diameter of the catheter is adjustable in the range of 1.2-2 mm.

[0011] As a preferred embodiment of this application, the length of the catheter is greater than or equal to 60 cm.

[0012] As a preferred embodiment of this application, the diameter of the through hole is 0.5 mm.

[0013] As a preferred embodiment of this application, the adapter and the end of the conduit are connected by an interference fit.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This airway topical anesthesia tube comprises a flexible plate, a locking block, and an adapter. Near the bottom of the flexible plate is a through-hole for releasing anesthetic in a mist-like manner. The flexible plate can be radially wound to form an adjustable-diameter tube. Specifically, the diameter of the tube can be adjusted to fit the size of the biopsy channel on the fiberoptic bronchus. After diameter adjustment, the tube can be inserted into the biopsy channel and shaped by the inner wall of the channel. Positioning of the tube is achieved when the locking block contacts the biopsy channel. The adapter is interference-fitted to the top of the tube and is used to connect with a syringe needle for anesthetic injection. Therefore, this airway topical anesthesia tube structure abandons the traditional fixed-diameter tube structure, instead using a flexible plate wound and shaped by the biopsy channel on the fiberoptic bronchus, improving the adaptability and efficiency of the tube and overcoming the shortcomings of existing technologies. Attached Figure Description

[0016] Figure 1 This invention provides a schematic diagram of the assembly structure of an adjustable-diameter fiber optic bronchoscope airway endotracheal tube.

[0017] Figure 2 Provided by this utility model Figure 1 Enlarged schematic diagram in the AA direction.

[0018] Figure 3 Provided by this utility model Figure 1 A schematic diagram of the exploded structure of the middle airway epidural.

[0019] Figure 4 A schematic diagram of the assembly structure of another adjustable-diameter fiber optic bronchoscope airway endotracheal tube provided by this utility model.

[0020] Figure 5 Provided by this utility model Figure 4 Enlarged schematic diagram in the BB direction.

[0021] Figure 6 Provided by this utility model Figure 5 A schematic diagram of the exploded structure of the middle airway epidural.

[0022] Figure 7 Diagram showing the use of the airway endotracheal tube provided by this utility model on a fiberoptic bronchoscope.

[0023] 1 is a flexible plate; 2 is a locking block; 21 is a clamp plate A; 22 is a clamp plate B; 3 is an adapter; 4 is a through hole; 5 is a catheter; 6 is a fiberoptic bronchoscope; 61 is a biopsy channel. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be emphasized that the following description is merely exemplary and not intended to limit the scope and application of the present invention.

[0025] like Figure 1-3 As shown, this embodiment provides an adjustable-diameter airway surface anesthetic tube for a fiberoptic bronchoscope. The tube is composed of a flexible plate 1, a locking block 2, and an adapter 3. The flexible plate 1 is rectangular, with a through-hole 4 near its bottom. The diameter of the through-hole 4 is preferably 0.5 mm. The flexible plate 1 can be radially wound to form an adjustable-diameter conduit 5. The end of the conduit 5 has a through-hole 4 for dispersing anesthetic, specifically achieved by adjusting the overlap of the flexible plate 1 during winding. The conduit 5 can be inserted into the biopsy channel 61 of the fiberoptic bronchoscope 6 and extend 10-15 mm beyond the end of the biopsy channel 61 (ensuring that the through-hole 4 releases the anesthetic into the airway as evenly and effectively as possible). It is understood that the length of the conduit 5 should be determined according to the length of the biopsy channel 61; in this embodiment, a length greater than or equal to 60 cm is preferred. The locking block 2 can be fixed near the top of the conduit 5 to position it, specifically by interlocking with the biopsy channel 61 of the fiberoptic bronchoscope 6. The locking block 2 is positioned on the catheter 5 based on the length of the end of the biopsy channel 61 extending from the catheter 5. This ensures that the catheter 5 extends precisely to the designated position of the biopsy channel 61 after the locking block 2 engages with the inlet end of the biopsy channel 61. The adapter 3 can be fixed to the top of the catheter 5 for connection with the syringe needle. This adapter 3 is a commonly used syringe connector, which includes a double-ended interface and a body. One of the two interfaces is used for a tight connection with the catheter 5, preferably an interference fit in this embodiment. The other is used for insertion with the syringe needle. In this embodiment, the flexible plate 1 is preferably made of polyurethane, a polymer compound with properties such as oil resistance, wear resistance, low temperature resistance, aging resistance, high hardness, and elasticity. Therefore, it is not easily broken and is easy to shape. Clinical trials have shown good results. In addition, in this embodiment, the locking block 2 is preferably made of silicone or plastic, which is not only easy to shape but also elastic and easy to engage with the inlet end of the biopsy channel.

[0026] In this embodiment, the diameter of the catheter 5 is adjustable from 1.2 to 2 mm to meet the needs of pediatric fiberoptic bronchoscope 6 (biopsy channel 61 size is 1.2 mm) and adult bronchoscope (biopsy channel 61 size is 2 mm).

[0027] The locking block 2 includes an arc-shaped clamping plate A21 and a clamping plate B22, which can be combined to form a hollow cone-shaped block. The size of the cone apex of the cone-shaped block is adapted to the inlet size of the biopsy channel 61 of the fiberoptic bronchoscope 6. It is understood that in this embodiment, the central cavity of the cone-shaped block formed by the clamping plate A21 and the clamping plate B22 should be a columnar structure adapted to the outer wall of the catheter 5, and the cavity wall should be smoothed so that it can be in close contact with the outer wall of the catheter 5.

[0028] To improve compatibility, the adapter 3 can include various models to fit different diameter conduits 5. Of course, to save costs and for ease of use, an interference fit can also be used for connection.

[0029] In a preferred embodiment of this application, the two ends of the rectangular flexible plate 1 are configured as fan-shaped surfaces with inwardly tapering side edges. The height of these fan-shaped surfaces is 1-2 mm, and through holes 4 are evenly distributed on these fan-shaped surfaces. After the flexible plate 1 is radially wound, it forms a variable-diameter conduit 5 with tapered ends. Figure 4-6 As shown.

[0030] The fan-shaped surface allows the end of the catheter 5 formed by the winding of the flexible plate 1 to be tapered. For the top side, it is convenient to connect with the adapter 3. For the bottom side, it can reduce the diameter of the port of the catheter 5, which is conducive to the diffusion of anesthetic from the peripheral through hole 4 of the tapered structure to the airway, thereby improving the utilization efficiency of anesthetic. In addition, it facilitates the insertion of the catheter 5 into the biopsy channel 61.

[0031] like Figure 7 The diagram shows the usage of the airway topical anesthesia tube provided in this embodiment on the fiberoptic bronchoscope 6. The specific operating principle includes: adjusting the diameter of the catheter 5 according to the current size of the biopsy channel 61 on the fiberoptic bronchoscope until it is compatible; after diameter adjustment, the catheter 5 can be inserted into the biopsy channel 61 and shaped by the inner wall of the biopsy channel 61; positioning the catheter 5 when the locking block 2 contacts the biopsy channel 61; and connecting the adapter 3 to the tip of the catheter 5 with an interference fit. This adapter 3 is used to connect to the syringe needle for anesthetic injection. It can be seen that the airway topical anesthesia tube of this solution abandons the traditional fixed-diameter catheter 5 structure, instead being formed by winding a flexible plate 1 and shaped by the biopsy channel 61 on the fiberoptic bronchoscope, improving the adaptability and efficiency of the catheter 5 and solving the shortcomings of the existing technology.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A diameter-adjustable fiberoptic bronchoscope airway surface anesthesia tube, characterized in that: The invention discloses a flexible tube for bronchofibroscope, which comprises a flexible plate (1), a locking block (2) and an adapter (3). The flexible plate (1) is provided with through holes (4) near the bottom, and is radially wound to form a catheter (5) with adjustable diameter. The locking block (2) is fixed on the catheter (5) near the top to position the catheter (5), and the adapter (3) is fixed on the top of the catheter (5) to connect with the needle of a syringe.

2. The diameter-adjustable bronchofiberscope airway tabled tube according to claim 1, characterized in that, The both ends of the flexible plate (1) are fan-shaped surfaces with inwardly retracted sides, and the radially wound flexible plate (1) forms a variable-diameter catheter (5) with tapered ends.

3. The diameter-adjustable bronchofiberscope airway tabled tube according to claim 2, characterized in that, The height of the fan-shaped surface is 1-2 mm, and the through holes (4) are uniformly arranged on the fan-shaped surface.

4. The diameter-adjustable bronchofiberscope airway tabled tube according to claim 1, characterized in that, The locking block (2) comprises a clamping plate A (21) and a clamping plate B (22), which can be combined into a hollow conical block with a top size matching the entrance size of the biopsy channel (61) of the bronchofibroscope (6).

5. The diameter-adjustable bronchofiberscope airway tabled tube according to claim 1, wherein, The adapter (3) comprises various models to match catheters (5) with different diameters.

6. The diameter-adjustable bronchofiberscope airway tabled tube according to claim 1, wherein, The diameter of the catheter (5) can be adjusted in the range of 1.2-2 mm.

7. The diameter-adjustable bronchofiberscope airway tabled tube according to claim 1, wherein The length of the catheter (5) is greater than or equal to 60 cm.

8. The diameter-adjustable bronchofiberscope airway tabled tube according to claim 1, characterized in that, The aperture of the through hole (4) is 0.5 mm.

9. The diameter-adjustable bronchofiberscope airway tabled tube according to claim 1, wherein, The adapter (3) is connected with the end of the catheter (5) by interference fit.

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