Dental pulp anesthesia apparatus

Abstract

The utility model discloses a dental pulp anesthesia device, including the outer tube, still including the shell and injection subassembly, the outer tube one side fixedly connected with the connecting pipe, the connecting pipe outside swing joint has the shell, the shell inboard fixedly connected with the reset spring, reset spring one side sets up the limit bead, the shell one side fixedly connected with the LED lamp for the illumination, the shell inboard is provided with the battery, and the battery is connected with LED lamp electrically, is provided with the charging interface on the shell, this device is through the shell cover is on the connecting pipe, and the limit bead is extruded and slides into the shell, and the limit bead extrusion reset spring, when the shell installation is in place, reset spring drives the limit bead to slide, makes the limit bead and is connected in the groove no.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a dental pulp anesthesia device. Background Technology

[0002] The dental pulp is located inside the pulp chamber of the tooth. The shape of the pulp chamber is roughly similar to that of the tooth body. The pulp chamber in the crown is larger and is called the pulp chamber, while the pulp chamber in the root is smaller and is called the root canal. There is a small opening at the root apex called the apical foramen. The dental pulp mainly contains nerves, blood vessels, lymph nodes, and connective tissue, as well as odontoblasts arranged around the pulp, whose function is to produce dentin.

[0003] Existing dental pulp anesthesia devices are held firmly in place by the index and middle fingers to ensure they do not wobble or shift during injection. The needle tip is then precisely inserted into the pre-determined location in the dental pulp. The piston is then pressed evenly and slowly with the thumb to propel the anesthetic through the needle tip into the pulp tissue, temporarily numbing the pulp nerves and facilitating subsequent treatment and procedures.

[0004] However, existing syringes do not have lighting capabilities. When performing pulp anesthesia in a relatively small space like the oral cavity where light is not easily accessible, the lack of sufficient and precise lighting makes it difficult for medical staff to clearly observe the specific condition of the tooth and pulp. This increases the difficulty and risk of the operation to some extent, and may also affect the accuracy of anesthesia and the treatment effect. Utility Model Content

[0005] Existing dental pulp anesthesia devices lack lighting capabilities. When performing pulp anesthesia in the relatively small and poorly lit space of the oral cavity, the lack of sufficient and precise lighting increases the technical difficulty of injection.

[0006] The technical solution of this utility model is as follows: a dental pulp anesthesia device, including an outer tube; it also includes a shell and an injection assembly; a connecting tube is fixedly connected to one side of the outer tube, and the shell is movably connected to the outside of the connecting tube; a return spring is fixedly connected to the inside of the shell, a limit bead is provided on one side of the return spring, an LED light for illumination is fixedly connected to one side of the shell, a storage battery is provided inside the shell, the storage battery is electrically connected to the LED light, a charging interface is provided on the shell, the charging interface is electrically connected to the storage battery, and a push-button switch is provided on the shell.

[0007] Preferably, a groove is provided on the outer shell, and the limiting bead is slidably connected to the inner side of the outer shell through the groove.

[0008] Preferably, the connecting pipe has a second groove, and the limiting bead is engaged with the inner side of the connecting pipe through the second groove.

[0009] Preferably, the injection assembly includes an inner tube, an inner tube fixedly connected to the inner side of an outer tube, a first fixing ring fixedly connected to the outer side of the outer tube, a fixing sleeve fixedly connected to one side of the outer tube, a push rod slidably connected to the inner side of the fixing sleeve, a second fixing ring fixedly connected to one side of the push rod, a piston fixedly connected to the side of the push rod away from the second fixing ring, a connector engaged with the outer side of the connecting tube, and an injection needle fixedly connected to the inner side of the connector.

[0010] Preferably, the inner tube is provided with graduations for observing the injection volume.

[0011] Preferably, two sets of first fixing rings are provided, with the two sets of first fixing rings symmetrically arranged on the outside of the outer tube.

[0012] Preferably, a through hole is provided inside the inner tube, and the piston is slidably connected to the inside of the inner tube through the through hole.

[0013] The beneficial effects of this invention are as follows: Compared to existing dental pulp anesthesia devices, which lack lighting, this device addresses the challenges of pulp anesthesia in relatively confined spaces like the oral cavity where light is difficult to penetrate. The lack of sufficient and precise lighting increases the difficulty of injection. This device, however, secures the outer shell by fitting it onto the connecting tube. A limiting bead is compressed and slides into the shell, pressing against a return spring. When the shell is in place, the return spring causes the limiting bead to slide, engaging with the inner side of the groove on the connecting tube, thus fixing the shell in place. The shell can be easily removed by pulling it. Pressing a push-button switch activates the LED light, providing illumination and significantly improving the convenience and accuracy of pulp anesthesia procedures. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model; Figure 2 The diagram shown is a disassembled structural diagram of the outer tube, connecting tube, and outer shell of this utility model. Figure 3 The diagram shown is a cross-sectional view of the outer tube, connecting tube, outer shell, return spring, limit bead, LED light, storage battery, charging interface and push-button switch combination of this utility model. Figure 4 The diagram shown is a cross-sectional view of the combination of the outer shell, limiting bead, battery, charging interface and push-button switch of this utility model. Figure 5 The diagram shown is a cross-sectional view of the inner tube, first fixing ring, fixing sleeve, push rod, second fixing ring, piston, connector and injection needle assembly of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1. Outer tube; 2. Connecting tube; 301. Outer shell; 302. Return spring; 303. Limiting bead; 304. LED light; 305. Battery; 306. Charging interface; 307. Push switch; 401. Inner tube; 402. First retaining ring; 403. Retaining sleeve; 404. Push rod; 405. Second retaining ring; 406. Piston; 407. Connector; 408. Injection needle. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please see Figure 1 - Figure 5 This utility model provides an embodiment of a dental pulp anesthesia device, including an outer tube 1; it also includes a shell 301 and an injection assembly; a connecting tube 2 is fixedly connected to one side of the outer tube 1, and the shell 301 is movably connected to the outside of the connecting tube 2; a return spring 302 is fixedly connected to the inside of the shell 301, and a limit bead 303 is provided on one side of the return spring 302; an LED light 304 for illumination is fixedly connected to one side of the shell 301; a battery 305 is provided inside the shell 301 and is electrically connected to the LED light 304; a charging interface 306 is provided on the shell 301 and is electrically connected to the battery 305; a push-button switch 307 is provided on the shell 301; a slot is provided on the shell 301, and the limit bead 303 is slidably connected to the inside of the shell 301 through the slot; the slot on the shell 301 allows the limit bead 303 to... The sliding connection is located inside the outer casing 301, thus guiding and limiting the outer casing 301. A second groove is provided on the connecting tube 2, and the limiting bead 303 is engaged with the inner side of the connecting tube 2 through the second groove, thereby limiting and fixing the outer casing 301. When the outer casing 301 is fitted onto the connecting tube 2, the limiting bead 303 is squeezed and slides into the outer casing 301. The limiting bead 303 compresses the return spring 302. When the outer casing 301 is installed in place, the return spring 302 drives the limiting bead 303 to slide, so that the limiting bead 303 is engaged with the second groove on the connecting tube 2, thereby fixing the outer casing 301. When removing the outer casing 301, it can be removed by pulling the outer casing 301. The LED light 304 is turned on by pressing the push-button switch 307 to provide illumination.

[0018] Please see Figure 5In this embodiment, the injection assembly includes an inner tube 401, an inner tube 401 fixedly connected to the inner side of an outer tube 1, a first fixing ring 402 fixedly connected to the outer side of the outer tube 1, a fixing sleeve 403 fixedly connected to one side of the outer tube 1, a push rod 404 slidably connected to the inner side of the fixing sleeve 403, a second fixing ring 405 fixedly connected to one side of the push rod 404, a piston 406 fixedly connected to the side of the push rod 404 away from the second fixing ring 405, a connector 407 engagingly connected to the outer side of the connecting tube 2, and an injection needle 408 fixedly connected to the inner side of the connector 407. The inner tube 401 is equipped with a scale line for observing the injection volume, which facilitates the control of the injection volume. Two sets of first fixing rings 402 are provided, which are symmetrically arranged on the outside of the outer tube 1. The two sets of first fixing rings 402 are used to fix the outer tube 1 in the hand to prevent it from slipping and falling. A through hole is opened in the inner tube 401, and the piston 406 is slidably connected to the inside of the inner tube 401 through the through hole. The through hole in the inner tube 401 is used to draw or inject anesthetic.

[0019] During operation, by fitting the outer casing 301 onto the connecting pipe 2, the limiting bead 303 is compressed and slides into the outer casing 301. The limiting bead 303 compresses the return spring 302. When the outer casing 301 is in place, the return spring 302 drives the limiting bead 303 to slide, causing the limiting bead 303 to engage with the groove on the connecting pipe 2, thereby fixing the outer casing 301. To remove the outer casing 301, simply pull it off. Pressing the push-button switch 307 turns on the LED light 304 for illumination. The outer pipe is securely fixed by inserting the index and middle fingers into the first fixing ring 402. 1. Ensure the needle does not shift or move during injection. Then, precisely insert the injection needle 408 into the predetermined location in the dental pulp. Next, use your thumb to press the second fixing ring 405 evenly and slowly. The second fixing ring 405 moves the push rod 404, which in turn moves the piston 406 to slide inside the inner tube 401. This pushes the anesthetic through the injection needle 408 into the dental pulp tissue, temporarily depriving the dental pulp nerve of pain sensation and facilitating subsequent treatment and procedures. After the injection is completed, pull the connector 407 to remove the injection needle 408 from the connecting tube 2 for replacement to prevent cross-infection.

[0020] Through the above steps, by fitting the outer shell 301 onto the connecting tube 2, the limiting bead 303 is squeezed and slides into the outer shell 301. The limiting bead 303 squeezes the return spring 302. When the outer shell 301 is installed in place, the return spring 302 drives the limiting bead 303 to slide, so that the limiting bead 303 is engaged in the groove 2 on the connecting tube 2, thereby fixing the outer shell 301. When removing the outer shell 301, it can be removed by pulling the outer shell 301. The LED light 304 is turned on by pressing the push-button switch 307 to provide illumination.

Claims

1. An endodontic anesthesia device comprising an outer tube (1); characterized in that: It also includes a housing (301) and an injection assembly; a connecting tube (2) is fixedly connected to one side of the outer tube (1), and the housing (301) is movably connected to the outside of the connecting tube (2). A reset spring (302) is fixedly connected to the inside of the housing (301), and a limit bead (303) is provided on one side of the reset spring (302). An LED lamp (304) for lighting is fixedly connected to one side of the housing (301). A storage battery (305) is provided inside the housing (301). The storage battery (305) is electrically connected to the LED lamp (304). A charging interface (306) is provided on the housing (301). The charging interface (306) is electrically connected to the storage battery (305). A push-button switch (307) is provided on the housing (301).

2. The endodontic anesthesia unit according to claim 1, characterized in that: A groove is provided on the outer shell (301), and a limiting bead (303) is slidably connected to the inner side of the outer shell (301) through the groove.

3. The endodontic anesthesia unit of claim 1, wherein: A groove is provided on the connecting pipe (2), and the limiting bead (303) is engaged and connected to the inside of the connecting pipe (2) through the groove.

4. The endodontic anesthesia unit of claim 1, wherein: The injection assembly includes an inner tube (401), an inner tube (401) fixedly connected to the inner side of an outer tube (1), a first fixing ring (402) fixedly connected to the outer side of the outer tube (1), a fixing sleeve (403) fixedly connected to one side of the outer tube (1), a push rod (404) slidably connected to the inner side of the fixing sleeve (403), a second fixing ring (405) fixedly connected to one side of the push rod (404), a piston (406) fixedly connected to the side of the push rod (404) away from the second fixing ring (405), a connector (407) engaging with the outer side of the connecting tube (2), and an injection needle (408) fixedly connected to the inner side of the connector (407).

5. The endodontic anesthesia unit according to claim 4, characterized in that: The inner tube (401) is equipped with scale lines for observing the injection volume.

6. The endodontic anesthesia unit according to claim 4, characterized in that: Two sets of first fixing rings (402) are provided, and the two sets of first fixing rings (402) are symmetrically arranged on the outside of the outer tube (1).

7. The endodontic anesthesia unit of claim 4, wherein: The inner tube (401) has a through hole, and the piston (406) is slidably connected to the inner side of the inner tube (401) through the through hole.

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