A disposable flexible pressure applicator for oral mucosal drug delivery

Abstract

This invention discloses a disposable oral mucosal drug delivery flexible pressure device. The device includes an infusion capsule and a hollow handle. The surface of the infusion capsule has annular grooves and dotted protrusions to increase friction, and its opening is connected to the front of the hollow handle. The hollow handle has a through-type structure with a Luer connector at its rear end, and a silicone check valve inside the connector. The through-type hollow handle serves as a fluid channel, and together with the Luer connector, it can be used with conventional clinical medical syringes for media filling and depressurization. The silicone check valve inside the connector provides a passive check seal, preventing media leakage and maintaining capsule pressure, ensuring pressure stability. The infusion capsule is made of soft silicone, adapting to the contours of irregular lesions in the oral cavity to achieve uniform pressure. The handle has anti-slip textures to improve the stability of gripping and operation. This invention has a simple structure, is easy to operate, and is low in cost, meeting the drug delivery pressure needs of lesions in different parts of the oral cavity.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a disposable oral mucosal drug delivery flexible pressure device. Background Technology

[0002] The current standard practice for oral mucosal drug delivery is to directly attach a cotton swab to the oral lesion mucosa, cover it with plastic wrap to isolate it from moisture, and then apply pressure to fix the cotton swab by medical staff using a rigid instrument or by the patient biting down on the cotton ball. Customized rigid pressure devices are also used in some clinical scenarios, but they are mostly designed for reusability and require additional disinfection procedures after use.

[0003] Existing technologies have poor pressure adaptability in practical applications. The existing rigid pressure-applying parts are of a fixed shape and cannot be adapted to irregular lesions such as buccal mucosa, tongue, gingival sulcus, and floor of mouth. This can easily lead to uneven pressure application, resulting in poor adhesion between the cotton and the mucosa, which affects the absorption of the medication. Summary of the Invention

[0004] The purpose of this invention is to provide a disposable oral mucosal drug delivery flexible pressure device to solve the problem of uneven pressure application and inability to adapt to irregular lesions in the oral cavity in existing oral mucosal drug delivery pressure aids.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This invention provides a disposable oral mucosal drug delivery flexible pressure device, including an inflatable capsule and a hollow handle. The surface of the inflatable capsule is provided with an annular groove and dotted protrusions. The opening of the inflatable capsule is connected to the front of the hollow handle. The hollow handle is a through-hole structure. A Luer connector is provided at the end of the hollow handle away from the inflatable capsule. A silicone check valve is provided inside the Luer connector.

[0006] In a further technical solution, the filling capsule is made of medical-grade soft silicone, the filling capsule has an ellipsoidal structure, the long diameter of the filling capsule is 3~5cm, and the short diameter is 2~4cm.

[0007] In a further technical solution, the hollow handle is made of PP material, and the middle and rear surface of the hollow handle is provided with anti-slip texture along the axial direction. The diameter of the hollow handle is 3~4cm, and the length of the hollow handle is 10~12cm.

[0008] In a further technical solution, the inflation capsule and the hollow handle are connected and fixed using a medical-grade hot-pressing seamless bonding process.

[0009] In a further technical solution, the Luer connector is made of PP material and is integrally injection molded with the hollow handle.

[0010] In a further technical solution, the Luer connector is a female connector used for connecting an external medical syringe.

[0011] In a further technical solution, the filling sac can be replaced with a spherical structure with a diameter of 3-5 cm to adapt to different lesion areas.

[0012] In a further technical solution, the material of the hollow handle can be replaced with medical-grade ABS material.

[0013] Beneficial effects: This invention changes the shape of the filling capsule by controlling the amount of filling medium injected into it, making it suitable for various irregular lesions such as buccal mucosa, tongue, gingival sulcus, and floor of mouth. It achieves uniform pressure application, the hollow handle facilitates operation, the Luer connector is compatible with conventional clinical medical syringes, and the operation steps such as filling medium, depressurizing and adjusting pressure, and positioning and applying pressure are simple. The silicone check gasket prevents backflow of the injected medium from affecting the pressure application. Attached Figure Description

[0014] The present invention will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of a disposable oral mucosal drug delivery flexible pressure device provided in an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the AA section.

[0015] in: 1. Injection capsule; 2. Hollow handle; 3. Luer connector; 11. Annular groove; 12. Dotted protrusions; 21. Anti-slip texture; 31. Silicone check gasket. Detailed Implementation

[0016] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0017] Example: like Figure 1 and Figure 2As shown, this embodiment of the invention provides a disposable oral mucosal drug delivery flexible pressure device, including an inflatable capsule 1 and a hollow handle 2. The surface of the inflatable capsule 1 is provided with an annular groove 11 and dot-shaped protrusions 12. The opening of the inflatable capsule 1 is connected to the front of the hollow handle 2. The hollow handle 2 is a through-hole hollow structure. A Luer connector 3 is provided at the end of the hollow handle 2 away from the inflatable capsule 1. A silicone check gasket 31 is provided inside the Luer connector 3.

[0018] In this embodiment of the invention, the annular groove 11 and dotted protrusions 12 on the surface of the filling capsule 1 increase the friction between the capsule and the plastic wrap without puncturing the outer plastic wrap, preventing slippage when the device is pressurized and ensuring the stability of the cotton wool. The hollow handle 2 with a through-type hollow structure serves as a fluid channel, enabling smooth flow of the filling medium between the Luer connector 3 and the filling capsule 1, providing a basis for medium injection and release to meet pressure regulation requirements. The Luer connector 3 at the end can be adapted to conventional clinical medical syringes, eliminating the need for additional special filling equipment and greatly simplifying the operation process. The silicone check gasket 31 inside the Luer connector 3 can achieve passive check seal, preventing leakage of the medium after filling and maintaining the pressure of the capsule to ensure pressure stability.

[0019] In one feasible implementation scheme, such as Figure 1 As shown, the filling capsule 1 is made of medical-grade soft silicone and has an ellipsoidal structure. The long diameter of the filling capsule 1 is 3-5 cm, and the short diameter is 2-4 cm. By using medical-grade soft silicone, after the filling medium is injected, it can adaptively deform according to the contour of irregular lesions such as the buccal mucosa, tongue, and gingival sulcus, achieving uniform pressure while avoiding secondary damage to the fragile lesion mucosa caused by hard components. The ellipsoidal structure, combined with the dimensions of 3-5 cm long diameter and 2-4 cm short diameter, facilitates precise positioning and pressure application to different parts of the oral cavity.

[0020] In one feasible implementation scheme, such as Figure 1As shown, the hollow handle 2 is made of PP material. The rear surface of the hollow handle 2 has anti-slip texture 21 arranged axially. The diameter of the hollow handle 2 is 3-4 cm, and its length is 10-12 cm. By using medical-grade rigid PP material, it possesses sufficient mechanical strength, is not easily deformed during gripping, and can accurately transmit the positioning force of the hand. Furthermore, this material is a low-cost medical material, meeting the cost control requirements for disposable consumables. The axial anti-slip texture 21 on the rear surface increases the friction between the hand and the handle, effectively preventing slippage caused by hand sweat, oral secretions, etc., during operation, thus improving the stability of gripping and operation. The 3-4 cm diameter avoids occupying too much space inside the mouth and affecting operation due to excessive size. The 10-12 cm length is suitable for the grip size of the human hand, making operation more comfortable. At the same time, the sufficient length allows the capsule to penetrate deep into the lesion area of ​​the oral cavity, such as the floor of the mouth, to achieve pressure application to the entire oral cavity lesion area.

[0021] In one feasible implementation scheme, such as Figure 1 As shown, the inflation capsule 1 and the hollow handle 2 are connected and fixed using a medical-grade thermoforming seamless bonding process. This process achieves a sealed connection between the inflation capsule 1 and the hollow handle 2, forming a robust, integrated structure that prevents parts from detaching during use and enhances the safety of the device.

[0022] In one feasible implementation scheme, such as Figure 1 As shown, the Luer connector 3 is made of PP material and is integrally injection molded with the hollow handle 2. By using medical-grade PP material, the same as that used in the hollow handle 2, the cost of raw material procurement and processing is reduced. The integral injection molding process ensures that there are no seams between the Luer connector 3 and the hollow handle 2, guaranteeing the sealing of the fluid channel, preventing media leakage, improving the overall structural integrity of the device, and preventing the connector from falling off during use.

[0023] In one feasible implementation scheme, such as Figure 1 As shown, the Luer connector 3 is a female connector used for connecting to an external medical syringe. By setting the Luer connector 3 as a female connector, which is compatible with the male connector 3 of a standard disposable clinical syringe, there is no need to equip the device with dedicated filling and depressurization equipment. Medical staff can operate the device directly in the outpatient clinic, improving the ease of operation and versatility of the device.

[0024] In one feasible implementation scheme, such as Figure 1 and Figure 2As shown, the filling capsule 1 can be replaced with a spherical structure with a diameter of 3-5 cm to adapt to different lesion areas. By replacing the ellipsoidal filling capsule 1 with a spherical filling capsule 1 with a diameter of 3-5 cm, the connection method and working principle remain unchanged, achieving more uniform pressure over a wider range. This compensates for the insufficient adaptability of the ellipsoidal capsule in large-area lesion scenarios, meets the clinical drug administration needs of different lesion areas and locations, broadens the application scenarios of the device, and improves the overall versatility of the device.

[0025] In one feasible implementation scheme, such as Figure 1 As shown, the hollow handle 2 can be made of medical-grade ABS material. By replacing the material of the hollow handle 2 with medical-grade ABS material, the processing technology remains unchanged. ABS material has better mechanical strength and wear resistance than PP material, which improves the performance and structural stability of the handle while adapting to the material supply systems and procurement needs of different manufacturers.

[0026] In a specific implementation of the disposable oral mucosal drug delivery flexible pressure device provided in this embodiment of the invention, a cotton swab is first attached to the oral lesion mucosa and covered with plastic wrap for moisture isolation. Then, a standard medical syringe is connected to the female Luer connector 3 of the device. An appropriate amount of water or gas is injected into the filling capsule 1 through the through-hole hollow channel of the hollow handle 2. The silicone check gasket 31 inside the Luer connector 3 can achieve passive check-back sealing to prevent leakage of the filling medium and maintain the pressure of the capsule. After filling, the soft silicone filling capsule 1 elastically expands and can adaptively deform according to the contour of the irregular lesion in the oral cavity. The operator holds the hollow handle 2 with anti-slip texture 21 and applies the expanded... The filling capsule 1 is aligned with the corresponding position of the cotton wool on the outer layer of the plastic wrap and pressed down. The annular groove 11 and dotted protrusions 12 on the surface of the capsule can increase the friction with the plastic wrap and prevent the device from slipping. The elastic pressure of the capsule can achieve stable fixation and uniform pressure on the cotton wool. If the pressure is not appropriate, the syringe can be reconnected to the Luer connector to extract some of the medium to complete the pressure relief and adjustment. After the medication is applied, all the fluid in the capsule is extracted to make the capsule shrink back. The entire device can be directly discarded to meet the hygiene requirements of single use. At the same time, the filling capsule 1 can be replaced with a spherical structure according to the needs of the lesion area, and the hollow handle 2 can also be replaced with ABS material to adapt to different clinical use needs without changing the overall working principle.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A disposable oral mucosal drug delivery flexible pressure device, characterized in that: It includes an infusion capsule (1) and a hollow handle (2). The surface of the infusion capsule (1) is provided with an annular groove (11) and dot-shaped protrusions (12). The opening of the infusion capsule (1) is connected to the front of the hollow handle (2). The hollow handle (2) is a through-hole hollow structure. A Luer connector (3) is provided at the end of the hollow handle (2) away from the infusion capsule (1). A silicone check gasket (31) is provided inside the Luer connector (3).

2. The disposable oral mucosal drug delivery flexible pressure device according to claim 1, characterized in that: The filling capsule (1) is made of medical-grade soft silicone. The filling capsule (1) has an ellipsoidal structure. The long diameter of the filling capsule (1) is 3~5cm and the short diameter is 2~4cm.

3. The disposable oral mucosal drug delivery flexible pressure device according to claim 1, characterized in that: The hollow handle (2) is made of PP material. The middle and rear surface of the hollow handle (2) is provided with anti-slip texture (21) along the axial direction. The diameter of the hollow handle (2) is 3~4cm and the length of the hollow handle (2) is 10~12cm.

4. The disposable flexible pressure applicator for oral mucosal drug delivery of claim 1, wherein: The filling capsule (1) and the hollow handle (2) are connected and fixed using a medical-grade hot-pressing seamless bonding process.

5. The disposable flexible pressure applicator for oral mucosal drug delivery of claim 1, wherein: The Luer connector (3) is made of PP material and is integrally injection molded with the hollow handle (2).

6. The disposable flexible pressure applicator for oral mucosal drug delivery of claim 1, wherein: The Luer connector (3) is a female connector used for connecting an external medical syringe.

7. The disposable oral mucosal drug delivery flexible pressure device according to claim 2, characterized in that: The filling sac (1) can be replaced with a spherical structure with a diameter of 3-5 cm to adapt to different lesion area requirements.

8. The disposable oral mucosal drug delivery flexible pressure device according to claim 3, characterized in that: The hollow handle (2) can be made of medical-grade ABS material.

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