Depth limiting guider of dental implant drill
By designing a depth-limiting guide for dental implant drills, and utilizing a combination of a detachable guide ring and a depth-limiting sleeve, the problem of difficulty in controlling drilling depth in existing technologies has been solved, achieving precise control of drilling depth and expanding the applicability of the guide.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN XINKAICHUANG PRECISION TECHNOLOGY CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-24
AI Technical Summary
Existing dental implant drill guides cannot precisely control the drilling depth, resulting in inconsistent drilling results, especially when the oral cavity space is limited, making precise control difficult.
Design a dental implant drill depth guide, comprising a detachable guide ring and a depth limiting sleeve. The drilling depth is precisely controlled by the groove on the depth limiting sleeve, and the replaceable guide ring can be adapted to different patients or conditions. The guide part 2 serves as a spare or replacement part in case of damage.
It achieves precise control over drilling depth, expands the applicability of the guide, reduces the number of times the guide ring needs to be replaced, and improves the flexibility and stability of operation.
Smart Images

Figure CN224155776U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of oral medical device technology, specifically relating to a depth guide for dental implant drills. Background Technology
[0002] Dental implantation is a method of tooth restoration that involves surgically implanting an artificial tooth root (implant) into the alveolar bone, and then attaching a crown to it. It is primarily used to restore missing teeth, restoring chewing function and aesthetics. During the implantation process, a drill guide is often needed to guide the drill. Existing technologies include easily replaceable guide designs, such as the one disclosed in patent CN222383390U, which describes a drill guide consisting of a fixed sleeve, a fixed structure, and a replaceable guide sleeve. However, this design cannot limit the drilling depth during operation. Drilling depth is a crucial parameter when using a drill. Due to the limited space in the oral cavity, even slight differences in depth can lead to varying drilling results. Therefore, accurately controlling the drilling depth is an area that requires further research.
[0003] This invention attempts to solve or at least alleviate this defect by providing a depth guide for dental implant drills. Utility Model Content
[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a dental implant drill depth limiting guide, which has the advantage of being able to limit the drilling depth.
[0005] To achieve the above objectives, this utility model provides a dental implant drill depth guide, comprising: a guide part and a fixing rod. The guide part is fixedly disposed at the end of the fixing rod. The guide part includes a guide ring and an annular sleeve. The guide ring can be inserted into the annular sleeve. A protrusion and a limiting hole are fixedly disposed on the outer periphery of the guide ring. A sliding groove is disposed on the inner side of the annular sleeve. The size of the sliding groove matches the protrusion. A limiting button is movably disposed on the inner side of the annular sleeve. The head of the limiting button can be inserted into the limiting hole. A compression spring is detachably disposed at the rear end of the limiting button. The compression spring can push the limiting button to move horizontally. A depth limiting sleeve is fixedly disposed at the top of the annular sleeve. The top of the depth limiting sleeve is provided with grooves of different heights.
[0006] As a further improvement of this utility model, three sliding grooves are provided, and the included angle between the three sliding grooves is 120°. Three protrusions are provided, and the included angle between the three protrusions is 120°.
[0007] As a further improvement of this utility model, a second guide part is fixedly provided at the other end of the fixing rod, and the second guide part has the same structure as the first guide part.
[0008] As a further improvement of this utility model, a stop block is fixedly provided on the side of the limiting protrusion, and the stop block can prevent the limiting protrusion from falling off.
[0009] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:
[0010] This utility model discloses a dental implant drill depth guide. Through the detachable design of the guide ring, it allows for timely replacement of the guide ring to address different patients or conditions, thus expanding the guide's applicability. Simultaneously, a depth-limiting sleeve is fixedly installed on the upper part of the annular sleeve. This sleeve has grooves of varying depths, allowing for precise control of drilling or grinding depth by directly guiding the drill down into the corresponding groove. The inclusion of a second guide section allows it to serve as a replacement component when the first guide section is damaged, or allows for the installation of guide rings of different specifications within the second guide section to reduce the frequency of replacements. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of a dental implant drill depth guide according to the present invention;
[0012] Figure 2 This is a disassembly diagram of a dental implant drill depth guide according to the present invention;
[0013] Figure 3 This is a schematic diagram of the annular sleeve of this utility model;
[0014] Figure 4 This is a schematic diagram of the setting method of the limiting protrusion button of this utility model.
[0015] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:
[0016] Guide section 100; Depth limiting sleeve 110; Groove 111; Guide ring 120; Protrusion 121;
[0017] Limiting hole 122; annular sleeve 130; slide groove 131; limiting protrusion 132; compression spring 133;
[0018] Stop 134; Guide part 200; Fixing rod 300. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.
[0021] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.
[0022] In the embodiments, by Figure 1-4 Give, Figure 1 This is a schematic diagram of a dental implant drill depth guide according to the present invention. It can be seen that both the guide part 100 and the guide part 200 are fixedly installed at the end of the fixing rod 300.
[0023] Figure 2 This is a disassembly diagram of a dental implant drill depth guide according to the present invention. It can be seen that the depth limiting sleeve 110 is provided with a groove 111.
[0024] Figure 3 This is a schematic diagram of the annular sleeve of the present invention. It can be seen that the guide ring 120 can be inserted into the annular sleeve 130.
[0025] Figure 4 This is a schematic diagram of the setting method of the limiting protrusion of this utility model. It can be seen that the limiting protrusion 132 can slide horizontally under the push of the compression spring 133.
[0026] This utility model discloses a dental implant drill depth guide. A guide part 100 is fixedly connected to a fixing rod 300 to ensure easy gripping during use. A depth limiting sleeve 110 is fixedly installed on the top of the guide part 100. The depth limiting sleeve 110 is provided with grooves 111 of different depths. The specific depth of each groove 111 is predetermined. When using the dental drill, the drill can be directly controlled to move downward into the groove 111 at the appropriate height, thereby achieving precise control of the drilling depth. This utility model also includes a replaceable guide ring 120, with a protrusion 121 fixedly provided on the outer side of the guide ring 120. A limiting hole 122 is also provided on the outer side of the guide ring 120. A sliding groove 131 is provided on the inner wall of the annular sleeve 130. The sliding groove 131 and the protrusion 121 are matched in size, allowing the protrusion 121 to be inserted into the sliding groove 131 and remain in contact. A limiting button 132 is also slidably provided on the inner wall of the annular sleeve 130. A compression spring 133 is detachably provided on the rear side of the limiting button 132. The compression spring 133 can push the limiting button 132 to move horizontally. Half of the head of the limiting button 132 can extend into the limiting hole 122, thus ensuring that the limiting button 132 can be limited when it extends into the limiting hole 122. When the guide ring 120 is dragged upwards, the limiting button 132 can be smoothly moved out of the limiting hole 122, thereby releasing the limitation. A stop 134 is provided on the side of the limiting protrusion 132. After the limit is released, the limiting protrusion 132 is restricted within the annular sleeve 130 under the action of the stop 134.
[0027] The replaceable guide ring 120 allows for easy replacement to meet operational needs when dealing with different patient conditions or oral cavity situations. During replacement, the matching arrangement of the protrusion 121 and the slide groove 131 prevents the guide ring 120 from sliding down or wobbling. The evenly distributed three sets of protrusions 121 and slide grooves 131 maximize stability. Due to the continuous horizontal thrust applied by the compression spring 133, the matching arrangement of the limiting protrusion 132 and the limiting hole 122 prevents the guide ring 120 from sliding upwards. Only when a large upward force is applied to the guide ring 120 can it be released from its limiting position. A second guide section 200 is fixedly mounted on the other end of the fixing rod 300. Different sizes of guide rings 120 can be placed into the second guide section 200 for subsequent use, thus reducing the frequency of guide ring 120 replacements. The second guide section 200 can also serve as a replacement part when the first guide section 100 is damaged. Under the action of the stop block 134, the limiting protrusion 132 will not fall out of the annular sleeve 130.
[0028] In summary, this utility model provides a dental implant drill depth guide. Through the detachable guide ring, the guide ring can be replaced promptly to address different patients or conditions, thus expanding the guide's applicability. Simultaneously, a depth-limiting sleeve is fixedly installed on the upper part of the annular sleeve. This sleeve has grooves of varying depths, allowing for precise control of drilling or grinding depth by directly guiding the drill down into the corresponding groove. The second guide section allows it to serve as a replacement when the first guide section is damaged, or allows for the installation of guide rings of different specifications within the second guide section to reduce the frequency of replacements.
[0029] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An implant drill depth stop guide, comprising: include: A guide part (100) and a fixing rod (300) are provided. The guide part (100) is fixedly disposed at the end of the fixing rod (300). The guide part (100) includes a guide ring (120) and an annular sleeve (130). The guide ring (120) can be inserted into the annular sleeve (130). A protrusion (121) and a limiting hole (122) are fixedly disposed on the outer periphery of the guide ring (120). A sliding groove (131) is disposed on the inner side of the annular sleeve (130). The size of the sliding groove (131) is related to the size of the guide ring (120). The protrusion (121) is matched, and a limiting protrusion (132) is movably provided on the inner side of the annular sleeve (130). The head of the limiting protrusion (132) can be inserted into the limiting hole (122). A compression spring (133) is detachably provided at the rear end of the limiting protrusion (132). The compression spring (133) can push the limiting protrusion (132) to move horizontally. A depth sleeve (110) is fixedly provided at the top of the annular sleeve (130). The top of the depth sleeve (110) is provided with grooves (111) of different heights.
2. The drill depth-limiting guide for dental implants according to claim 1, characterized in that There are three slides (131), and the included angle between the three slides (131) is 120°. There are three protrusions (121), and the included angle between the three protrusions (121) is 120°.
3. The drill depth-limiting guide for dental implants according to claim 2, characterized in that The other end of the fixed rod (300) is fixedly provided with a guide part two (200), which has the same structure as the guide part one (100).
4. The drill depth-limiting guide for dental implants according to claim 1, characterized in that A stop (134) is fixedly provided on the side of the limiting protrusion (132), and the stop (134) can prevent the limiting protrusion (132) from falling off.