Quickly replaceable dental gutta-percha point cutter

CN224776930UActive Publication Date: 2026-09-22CHANGZHOU HAILI MEDICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522309665.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-09-22
Estimated Expiration
2035-10-31

AI Technical Summary

Technical Problem

[0002]目前,目前,牙胶尖切断器在牙科治疗中广泛应用于根管充填环节,用于精确截断牙胶尖至所需长度;然而,传统设备多采用内置固定电池或外接电源供电,传统的内置电池更换电池需拆卸外壳或暂停设备使用,操作繁琐且增加交叉污染风险,无法快速更换备用电源,导致停机等待充电时间过长,尤其在紧急病例处理时可能延误风险

Benefits of technology

在本实用新型中,将充满电的电池块装入电池壳体的第二安装腔,旋紧螺纹使电池壳体与握持壳体固定,旋紧过程中,接触式顶针在压缩弹簧推动下与电池触点抵接,同时导电板与主控制器导通,设备进入待机状态;

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Abstract

The utility model discloses a quick battery replacement type gutta percha point cutter, including holding casing, main control unit, battery casing and battery replacement subassembly, the holding casing includes first casing and second casing, first casing is equipped with first mould cavity, second casing is equipped with second mould cavity, first casing with second casing abuts when make first mould cavity with second mould cavity form first installation cavity, main control unit is installed in the installation cavity, the holding casing one end is equipped with the cutout needle, the cutout needle with main control unit electricity is connected, battery casing installs on the holding casing, battery casing is equipped with second installation cavity, first installation cavity with second installation cavity is linked together, be equipped with battery block in second installation cavity, battery replacement subassembly includes conducting board and contact type thimble, it can replace battery fast, reduce equipment downtime to improve the efficiency of dental treatment.
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Description

Technical Field

[0001] This utility model relates to a quick-change battery-operated gutta-percha point cutter, belonging to the field of medical mechanical equipment technology. Background Technology

[0002] Currently, gutta-percha cutters are widely used in dental treatment, particularly in the root canal filling process, to precisely cut gutta-percha points to the required length. However, traditional devices often use built-in fixed batteries or external power supplies. Replacing traditional built-in batteries requires disassembling the casing or stopping the device, which is cumbersome and increases the risk of cross-contamination. Furthermore, it is not possible to quickly replace the backup power supply, resulting in excessive downtime while waiting for charging, which may cause delays, especially in emergency cases. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a quick-change battery gutta-percha point cutter that can quickly replace the battery, reduce equipment downtime, and thus improve the efficiency of dental treatment.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a quick-change battery-operated gutta-percha point cutter, comprising: A gripping housing, comprising a first housing and a second housing, wherein the first housing has a first cavity and the second housing has a second cavity, wherein when the first housing and the second housing abut against each other, the first cavity and the second cavity form a first mounting cavity; The main controller is installed in the mounting cavity; A cutting needle is provided at one end of the gripping housing, and the cutting needle is electrically connected to the main controller; A battery housing is mounted on the grip housing. The battery housing has a second mounting cavity, and the first mounting cavity is connected to the second mounting cavity. A battery block is disposed in the second mounting cavity. A battery swapping assembly, comprising a conductive plate and contact pins, wherein the conductive plate is connected to the main controller and the contact pins are connected to the battery pack; When the battery block is installed in place, the contact pin abuts against the conductive plate to form an electrical connection.

[0005] Furthermore, one end of the first housing is provided with a first external thread, and the other end of the first housing is provided with a second external thread; The second housing has a third external thread at one end and a fourth external thread at the other end. When the first housing abuts against the second housing, the first external thread and the third external thread form a first mounting external thread, and the second external thread and the fourth external thread form a second mounting external thread.

[0006] Furthermore, in order to ensure the installation stability of the cutting needle, a quick-change rubber tip cutter also includes a connecting cylinder. One end of the connecting cylinder is provided with a first internal thread that matches the first external thread, and the other end of the connecting cylinder is provided with a through hole suitable for the cutting needle to pass through. The connecting cylinder is threadedly connected to the gripping housing via the first mounting external thread and the first mounting internal thread, and the cutting needle is adapted to pass through the through hole and be electrically connected to the main controller.

[0007] Furthermore, the battery housing is provided with a second mounting internal thread that is adapted to the second mounting external thread, and the battery housing is adapted to be threadedly connected to the grip housing via the second mounting external thread and the second mounting internal thread.

[0008] Furthermore, to improve the reliability of the contact, the battery swapping assembly also includes a mounting bracket, on which the contact pin is movably mounted. A contact point is provided between the battery block and the mounting bracket. When the battery block is installed in place, the contact pin is connected to the contact point through an elastic abutment.

[0009] Furthermore, the mounting bracket is equipped with a compression spring, one end of which abuts against the tail of the contact pin, and the other end is fixed to the inner wall of the mounting bracket.

[0010] Furthermore, to facilitate charging, a wireless charging coil is provided at the other end of the battery block away from the contact pin.

[0011] By adopting the above technical solution, this utility model has the following beneficial effects: In this utility model, a fully charged battery block is inserted into the second mounting cavity of the battery housing, and the threads are tightened to fix the battery housing and the grip housing. During the tightening process, the contact pin is pushed by the compression spring to abut against the battery contacts, and at the same time the conductive plate is connected to the main controller, and the device enters the standby state. The user holds the housing and uses the main controller to activate the cutting needle to cut the gutta-percha point, completing the dental treatment operation; When the battery needs to be replaced, loosen the battery housing, disconnect the second mounting thread from the gripping housing, remove the depleted battery block, insert the new battery block into the second mounting cavity, tighten the battery housing, and the contact pin will form a stable electrical connection with the conductive plate after being pressed, and the equipment will immediately restore power. Simply place the depleted battery pack on the wireless charging base, and it will charge via coil induction. Attached Figure Description

[0012] Figure 1 This is a perspective view of a quick-swap gutta-percha point cutter according to the present invention; Figure 2 This is a front view of a quick-swap gutta-percha point cutter according to the present invention; Figure 3 This is a schematic diagram of the structure of a quick-swap gutta-percha point cutter according to the present invention. Detailed Implementation

[0013] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0014] like Figure 1-3 As shown, a quick-change type gutta-percha point cutter is characterized by comprising: The gripping housing includes a first housing 11 and a second housing 12. The first housing 11 is provided with a first cavity 13, and the second housing 12 is provided with a second cavity 14. When the first housing 11 and the second housing 12 abut against each other, the first cavity 13 and the second cavity 14 form a first mounting cavity. Main controller 2, which is installed in the mounting cavity; A cutting needle 3 is provided at one end of the gripping housing, and the cutting needle 3 is electrically connected to the main controller 2; Battery housing 4 is mounted on grip housing. Battery housing 4 has a second mounting cavity 41. The first mounting cavity is connected to the second mounting cavity 41. A battery block is provided in the second mounting cavity 41. The battery swapping assembly includes a conductive plate 51 and a contact pin 52. The conductive plate 51 is connected to the main controller 2, and the contact pin 52 is connected to the battery block. When the battery block is installed in place, the contact pin 52 abuts against the conductive plate 51 to form an electrical connection.

[0015] Specifically, such as Figure 1-3 As shown, one end of the first housing 11 is provided with a first external thread 111, and the other end of the first housing 11 is provided with a second external thread 112; The second housing 12 has a third external thread 121 at one end and a fourth external thread 122 at the other end; When the first housing 11 abuts against the second housing 12, the first external thread 111 and the third external thread 121 form the first mounting external thread, and the second external thread 112 and the fourth external thread 122 form the second mounting external thread.

[0016] Specifically, such as Figure 1-3As shown, a quick-change type gutta-percha tip cutter also includes a connecting cylinder 6. One end of the connecting cylinder 6 is provided with a first mounting internal thread that is adapted to the first mounting external thread, and the other end of the connecting cylinder 6 is provided with a through hole 61 suitable for the cutting needle 3 to pass through. The connecting cylinder 6 is threadedly connected to the gripping housing via the first mounting external thread and the first mounting internal thread, and the cutting needle 3 is adapted to pass through the through hole 61 and be electrically connected to the main controller 2.

[0017] Specifically, such as Figure 1-3 As shown, the battery housing 4 is provided with a second mounting internal thread 42 that is adapted to the second mounting external thread, and the battery housing 4 is adapted to be threadedly connected to the grip housing through the second mounting external thread and the second mounting internal thread 42.

[0018] Specifically, such as Figure 1-3 As shown, the battery swapping assembly also includes a mounting bracket 53, and a contact pin 52 is movably mounted on the mounting bracket 53. A contact point is provided between the battery block and the mounting bracket 53. When the battery block is installed in place, the contact pin 52 is connected to the contact point through an elastic abutment.

[0019] Specifically, such as Figure 1-3 As shown, a compression spring is provided inside the mounting bracket 53. One end of the compression spring abuts against the tail of the contact pin 52, and the other end is fixed to the inner wall of the mounting bracket 53.

[0020] Specifically, such as Figure 1-3 As shown, a wireless charging coil 54 is provided at the other end of the battery block away from the contact pin 52.

[0021] In this embodiment, a fully charged battery block is inserted into the second mounting cavity 41 of the battery housing 4, and the threads are tightened to fix the battery housing 4 to the gripping housing. During the tightening process, the contact pin 52 abuts against the battery contacts under the push of the compression spring, and at the same time the conductive plate 51 is connected to the main controller 2, and the device enters the standby state. The user holds the housing and activates the cutting needle 3 via the main controller 2 to cut the gutta-percha point, completing the dental treatment operation; When the battery needs to be replaced, loosen the battery housing 4, disconnect the second mounting thread from the gripping housing, remove the depleted battery block, insert the new battery block into the second mounting cavity 41, tighten the battery housing 4, and the contact pin 52 will form a stable electrical connection with the conductive plate 51 after being pressed, and the equipment will immediately restore power. Simply place the depleted battery pack on the wireless charging base, and it will charge via coil induction.

[0022] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. 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 quick-change type gutta-percha point cutter, characterized in that, include: The gripping housing includes a first housing (11) and a second housing (12). The first housing (11) is provided with a first cavity (13), and the second housing (12) is provided with a second cavity (14). When the first housing (11) and the second housing (12) abut against each other, the first cavity (13) and the second cavity (14) form a first mounting cavity. The main controller (2) is installed in the first mounting cavity; The gripping housing is provided with a cutting needle (3) at one end, and the cutting needle (3) is electrically connected to the main controller (2); Battery housing (4), the battery housing (4) is mounted on the grip housing, the battery housing (4) is provided with a second mounting cavity (41), the first mounting cavity is connected to the second mounting cavity (41), and a battery block is provided in the second mounting cavity (41); The battery swapping assembly includes a conductive plate (51) and a contact pin (52). The conductive plate (51) is connected to the main controller (2), and the contact pin (52) is connected to the battery block. When the battery block is installed in place, the contact pin (52) abuts against the conductive plate (51) to form an electrical connection.

2. The quick-change type gutta-percha point cutter according to claim 1, characterized in that: The first housing (11) has a first external thread (111) at one end and a second external thread (112) at the other end. The second housing (12) has a third external thread (121) at one end and a fourth external thread (122) at the other end. When the first housing (11) abuts against the second housing (12), the first external thread (111) and the third external thread (121) form a first mounting external thread, and the second external thread (112) and the fourth external thread (122) form a second mounting external thread.

3. The quick-change type gutta-percha point cutter according to claim 2, characterized in that: It also includes a connecting cylinder (6), one end of which is provided with a first mounting internal thread adapted to the first mounting external thread, and the other end of which is provided with a through hole (61) suitable for the cutting needle (3) to pass through. The connecting cylinder (6) is threadedly connected to the gripping housing via the first mounting external thread and the first mounting internal thread, and the cutting needle (3) is adapted to pass through the through hole (61) and be electrically connected to the main controller (2).

4. A quick-change type gutta-percha point cutter according to claim 2, characterized in that: The battery housing (4) is provided with a second mounting internal thread (42) that is adapted to the second mounting external thread, and the battery housing (4) is adapted to be threadedly connected to the grip housing by the second mounting external thread and the second mounting internal thread (42).

5. A quick-change type gutta-percha point cutter according to claim 2, characterized in that: The battery swapping assembly also includes a mounting bracket (53), and the contact pin (52) is movably mounted on the mounting bracket (53). There is a contact point between the battery block and the mounting bracket (53). When the battery block is installed in place, the contact pin (52) is connected to the contact point through elastic abutment.

6. A quick-change type gutta-percha point cutter according to claim 5, characterized in that: The mounting bracket (53) is equipped with a compression spring. One end of the compression spring abuts against the tail of the contact pin (52), and the other end is fixed to the inner wall of the mounting bracket (53).

7. A quick-change type gutta-percha point cutter according to claim 1, characterized in that: The battery block is provided with a wireless charging coil (54) at the other end away from the contact pin (52).