Injectable drug-loaded gel device for periodontitis treatment

Abstract

The invention relates to an injectable drug-loaded gel device for periodontitis treatment, which comprises an injection cylinder, the left end of the injection cylinder is movably connected with a Luer taper, one end of the Luer taper far away from the injection cylinder is fixedly connected with a blunt injection needle tube, the inside of the injection cylinder is movably connected with a push rod, and the push rod is fixedly connected with an injection needle tube. A mounting seat is fixedly connected to the left end of the push rod, a sealing rubber push head is movably connected to the left side of the mounting seat, a limiting cap is movably connected to the right end of the push rod, a driving mechanism is arranged at the bottom of the syringe, a sliding limiting block is arranged at the top of the driving mechanism, and the driving mechanism comprises a clamping ring; the outer surface of the syringe is movably connected with a clamping ring, and the bottom of the clamping ring is fixedly connected with a connecting base. According to the injectable drug-loaded gel device for periodontitis treatment, the injection tube and the blunt-end injection needle tube are arranged, so that the injectable drug-loaded gel device has the functions of noninvasive penetration and lateral drug administration along a natural path of a periodontal pocket.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an injectable drug-loaded gel device for the treatment of periodontitis. Background Technology

[0002] Periodontitis, also known as destructive periodontitis, is a chronic inflammatory disease that is primarily caused by bacteria in dental plaque damaging periodontal tissues. This damage affects the periodontal supporting tissues, including the gums, periodontal ligament, alveolar bone, and cementum.

[0003] Treatment of periodontitis often requires delivering medication directly into the depths of the periodontal pocket. Traditional methods mainly use ordinary syringes or gingival sulcus irrigators. However, when using traditional medication delivery devices, ordinary sharp needles can easily puncture the bottom of the pocket, causing pain or bleeding. The needles are also difficult to adapt to the curved path of the periodontal pocket, causing the medication to remain only at the pocket opening and not be evenly distributed throughout the entire pocket wall. Furthermore, the medication needs to be manually pushed, making it impossible to precisely control the dosage. Therefore, an injectable drug-loaded gel device for the treatment of periodontitis is proposed to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an injectable drug-loaded gel device for the treatment of periodontitis. It has advantages such as uniform drug delivery and precise dosage control, solving the problems of traditional drug delivery devices, which are prone to causing pain or bleeding due to the sharp needles easily puncturing the bottom of the periodontal pocket, making it difficult for the needle to adapt to the curved path of the periodontal pocket, resulting in the drug only staying at the pocket opening and not being evenly distributed throughout the entire inner wall of the pocket. Furthermore, the need for manual pushing of the drug makes it impossible to precisely control the dosage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an injectable drug-loaded gel device for the treatment of periodontitis, comprising an injection cylinder, a Luer connector movably connected to the left end of the injection cylinder, a blunt-tipped injection needle fixedly connected to the end of the Luer connector away from the injection cylinder, a push rod movably connected inside the injection cylinder, a mounting base fixedly connected to the left end of the push rod, a sealing rubber push head movably connected to the left side of the mounting base, a limit cap movably connected to the right end of the push rod, a driving mechanism provided at the bottom of the injection cylinder, and a sliding limit block provided at the top of the driving mechanism;

[0006] The driving mechanism includes a retaining ring. The outer surface of the syringe is movably connected to the retaining ring. A connecting seat is fixedly connected to the bottom of the retaining ring. A mounting box is fixedly connected to the bottom of the connecting seat. A box cover is movably connected to the left side of the mounting box. A handle is threadedly connected to the front and back of the mounting box. A battery box is installed inside the mounting box. An electrical control box is installed inside the mounting box. A motor is threadedly connected to the inside of the mounting box. A rotating shaft is fixedly connected to the output shaft of the motor. A drive gear is fixedly connected to the right end of the rotating shaft. A first driven gear meshes with the back of the drive gear. A second driven gear meshes with the top of the first driven gear.

[0007] Preferably, the mounting box is characterized by having a rotating support seat adapted to the first driven gear and the second driven gear respectively inside and on top, and the mounting box has an opening adapted to the second driven gear on top.

[0008] Preferably, the push rod has a toothed groove at its bottom that matches the second driven gear, and the top of the second driven gear is movably connected to the bottom of the push rod.

[0009] Preferably, the sliding limit block has a sliding hole inside that matches the push rod, and the injection cylinder has a round hole on the right side that matches the mounting base and the sealing rubber push head.

[0010] Preferably, the mounting box has threaded holes on both the front and back sides that are adapted to the handle, and a pull rod is provided on the left side of the box cover.

[0011] Preferably, the injection tube has a bent section at one end, which is set at an obtuse angle to the straight section of the injection tube, and the axis of the bent section is not collinear with the axis of the injection tube.

[0012] Preferably, the blunt-tipped injection needle tube has injection ports on both its outer surface and at the end furthest from the Luer connector, and the injection ports are arranged at equal intervals on the outer surface of the blunt-tipped injection needle tube.

[0013] Preferably, the syringe is provided with a scale on the front, and the handle is provided with a four-finger grip groove on the left side, and the mounting box is provided with a switch button on the front.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. This injectable drug-loaded gel device for the treatment of periodontitis, by setting up an injection tube and a blunt-tipped injection needle, enables the device to penetrate deep into the periodontal pockets without trauma and deliver the drug laterally. This allows the drug to spread from the side rather than directly impacting the patient's oral cavity from the tip, achieving more uniform filling and protective drug delivery.

[0016] 2. This injectable drug-loaded gel device for the treatment of periodontitis has a precise dosage control function through a drive mechanism. It can automatically push the drug to deliver the drug to the patient's oral cavity in a precise amount. At the same time, it can be operated by doctors and other operators with one hand. On the one hand, it can reduce the pressure on doctors to hold the device, making it easier to maintain one angle and posture for a long time during drug delivery. On the other hand, it can free up the doctor's other hand to perform other auxiliary actions. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a frontal sectional view of the present invention;

[0019] Figure 3 This is a right-side view of the retaining ring structure of the present invention;

[0020] Figure 4 This is an enlarged structural diagram of point A in the present invention.

[0021] In the diagram: 1. Syringe; 2. Luer connector; 3. Blunt-tipped injection needle; 4. Push rod; 5. Mounting base; 6. Sealing rubber push head; 7. Limit cap; 8. Drive mechanism; 801. Snap ring; 802. Connecting seat; 803. Mounting box; 804. Box cover; 805. Handle; 806. Battery box; 807. Electrical control box; 808. Motor; 809. Rotating shaft; 810. Drive gear; 811. First driven gear; 812. Second driven gear; 9. Sliding limit block. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-4This embodiment of an injectable drug-loaded gel device for treating periodontitis includes an injection cylinder 1. A Luer connector 2 is movably connected to the left end of the injection cylinder 1. A blunt-tipped injection needle 3 is fixedly connected to the end of the Luer connector 2 away from the injection cylinder 1. A push rod 4 is movably connected inside the injection cylinder 1. A mounting base 5 is fixedly connected to the left end of the push rod 4. A sealing rubber push head 6 is movably connected to the left side of the mounting base 5. A limit cap 7 is movably connected to the right end of the push rod 4. A driving mechanism 8 is provided at the bottom of the injection cylinder 1. A sliding limit block 9 is provided at the top of the driving mechanism 8.

[0024] The drive mechanism 8 includes a retaining ring 801. The retaining ring 801 is movably connected to the outer surface of the syringe 1. A connecting seat 802 is fixedly connected to the bottom of the retaining ring 801. A mounting box 803 is fixedly connected to the bottom of the connecting seat 802. A box cover 804 is movably connected to the left side of the mounting box 803. A handle 805 is threadedly connected to the front and back of the mounting box 803. A battery box 806 is disposed inside the mounting box 803. An electrical control box 807 is disposed inside the mounting box 803. A motor 808 is threadedly connected to the inside of the mounting box 803. A rotating shaft 809 is fixedly connected to the output shaft of the motor 808. A drive gear 810 is fixedly connected to the right end of the rotating shaft 809. A first driven gear 811 meshes with the back of the drive gear 810. A second driven gear 812 meshes with the top of the first driven gear 811.

[0025] The syringe 1 stores the medication for later use, facilitating delivery and providing a secure mounting for the device. The Luer connector 2 allows for quick disassembly and replacement of the syringe 1 and the blunt-tipped needle 3. The push rod 4 moves the mounting base 5 and the sealing rubber push head 6, further promoting medication delivery. The sealing rubber push head 6 creates a sealed environment with the inside of the syringe 1, facilitating medication delivery. The sliding limit block 9 provides sliding support for the push rod 4. The retaining ring 801 quickly secures the syringe 1. The mounting box 803 secures the device. The grip 805 provides a better grip for the physician. The battery box 806 contains a battery, which can be replaced to provide the necessary power for the entire device. The electrical control box 807 contains the necessary electrical control and signal transmission equipment for smooth operation.

[0026] When implementing this procedure, please follow these steps:

[0027] 1) First, start the motor 808 to make it rotate, which in turn drives the rotating shaft 809 to rotate, and the rotation of the rotating shaft 809 drives the drive gear 810 to rotate;

[0028] 2) Then the rotation of the drive gear 810 drives the first driven gear 811 to rotate, which in turn drives the second driven gear 812 to rotate, and then drives the push rod 4 to move.

[0029] 3) The movement of the push rod 4 then moves the mounting base 5 and the sealing rubber push head 6, which allows the drug to be pushed inside the syringe 1.

[0030] 4) Finally, the setting of Luer connector 2 and blunt injection needle 3 allows the drug to penetrate deep into the periodontal pocket without trauma, and can be spread directly from the side, avoiding direct impact.

[0031] In summary, this injectable drug-loaded gel device for periodontitis treatment, through the inclusion of an injection tube 1 and a blunt-tipped injection needle 3, enables the device to deliver medication non-invasively along the natural path of the periodontal pocket, allowing the medication to spread from the side rather than directly impacting the patient's oral cavity from the tip, achieving more uniform filling and protective drug delivery. The drive mechanism 8 enables precise dosage control, automatically pushing the medication to deliver a precise amount to the patient's oral cavity. Furthermore, during use, it allows dentists and other operators to hold and operate the device with one hand, reducing grip pressure and facilitating prolonged medication delivery while freeing up the other hand for other auxiliary actions.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injectable drug-loaded gel device for the treatment of periodontitis, comprising an injection cylinder (1), characterized in that, The left end of the syringe (1) is movably connected to a Luer connector (2), and the end of the Luer connector (2) away from the syringe (1) is fixedly connected to a blunt-tipped injection needle (3). The inside of the syringe (1) is movably connected to a push rod (4), the left end of the push rod (4) is fixedly connected to a mounting base (5), the left side of the mounting base (5) is movably connected to a sealing rubber push head (6), the right end of the push rod (4) is movably connected to a limit cap (7), the bottom of the syringe (1) is provided with a drive mechanism (8), and the top of the drive mechanism (8) is provided with a sliding limit block (9). The drive mechanism (8) includes a retaining ring (801). The retaining ring (801) is movably connected to the outer surface of the syringe (1). A connecting seat (802) is fixedly connected to the bottom of the retaining ring (801). A mounting box (803) is fixedly connected to the bottom of the connecting seat (802). A box cover (804) is movably connected to the left side of the mounting box (803). A handle (805) is threaded to the front and back of the mounting box (803). A battery box is provided inside the mounting box (803). (806) An electrical control box (807) is provided inside the mounting box (803). A motor (808) is threadedly connected inside the mounting box (803). A rotating shaft (809) is fixedly connected to the output shaft of the motor (808). A drive gear (810) is fixedly connected to the right end of the rotating shaft (809). A first driven gear (811) meshes with the back of the drive gear (810). A second driven gear (812) meshes with the top of the first driven gear (811). The mounting box (3) is provided with a rotating support seat that is adapted to the first driven gear (811) and the second driven gear (812) respectively inside and on the top, and the mounting box (803) has an opening that is adapted to the second driven gear (812) on the top. The bottom of the push rod (4) is provided with a tooth groove that is compatible with the second driven gear (812), and the top of the second driven gear (812) is movably connected to the bottom of the push rod (4).

2. The injectable drug-loaded gel device for treating periodontitis according to claim 1, characterized in that, The sliding limit block (9) has a sliding hole inside that matches the push rod (4), and the injection cylinder (1) has a round hole on the right side that matches the mounting base (5) and the sealing rubber push head (6).

3. The injectable drug-loaded gel device for treating periodontitis according to claim 1, characterized in that, The mounting box (803) has threaded holes on both the front and back that are adapted to the handle (805), and a pull rod is provided on the left side of the box cover (804).

4. The injectable drug-loaded gel device for treating periodontitis according to claim 1, characterized in that, One end of the injection tube (1) is provided with a bent section, which is set at an obtuse angle to the straight section of the injection tube, and the axis of the bent section is not collinear with the axis of the injection tube (1).

5. The injectable drug-loaded gel device for treating periodontitis according to claim 1, characterized in that, The blunt-tipped injection needle (3) has injection ports on its outer surface and at one end away from the Luer connector (2), and the injection ports are arranged at equal intervals on the outer surface of the blunt-tipped injection needle (3).

6. The injectable drug-loaded gel device for treating periodontitis according to claim 1, characterized in that, The syringe (1) has a scale on its front side, and the handle (805) has a four-finger grip groove on its left side. The mounting box (803) has a switch button on its front side.

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