Rongeur with tongue guard

Abstract

The bone membrane stripper with the tongue blocking block, comprising a handle, the handle front end is curved downward to form a first working head, the handle front part extends downward and has a tongue blocking block, and the tongue blocking block is located behind the first working head. When the first working head at the front end of the bone membrane stripper is used to strip and turn over the soft tissues such as gums and bone membranes from the bone surface of the lingual side operation area of the lower jaw of the patient, the tongue blocking block located behind the working head is blocked between the tongue of the patient and the lingual side operation area of the lower jaw, effectively preventing the tongue from invading the lingual side operation area of the lower jaw and avoiding the tongue from shielding the visual field of the lingual side operation area of the lower jaw.

Description

Technical Field

[0001] This utility model relates to the field of dental instrument technology, specifically to a periosteal elevator with a tongue guard. Background Technology

[0002] During dental implant surgery, nurses use a saliva suction device in one hand to continuously suction saliva, keeping the surgical area dry; with the other hand, they use a periosteal elevator to peel and unfold the soft tissues such as the gingiva and periosteum from the bone surface, thus fully exposing the bone surface of the surgical area to facilitate subsequent cavity preparation and implant placement. When the surgical area is located on the lingual side of the mandible, the patient's tongue can easily intrude into the surgical area due to swallowing reflexes or unconscious movements, obstructing the surgical field of vision. Because nurses use both hands to operate the saliva suction device and the periosteal elevator, it is difficult to use additional instruments simultaneously to remove the tongue, making it difficult to effectively eliminate tongue interference. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a periosteal elevator with a tongue-blocking block, which can effectively prevent the tongue from invading the lingual surgical area of ​​the mandible.

[0004] To solve the above-mentioned technical problems, the present invention provides a periosteal elevator with a tongue block, which includes a handle, the front end of the handle is bent downward to form a first working head, and a tongue block extends downward from the front of the handle, the tongue block being located behind the first working head.

[0005] Furthermore, the tongue block is hinged to the front of the handle and can be rotated backward to retract and rest against the handle.

[0006] Furthermore, an extension rod is hinged to the front of the handle. The extension rod is a slanted rod that slopes forward and downward. A stop block is located at the lower end of the extension rod and is hinged to the front end of the handle via the extension rod. The extension rod is laterally recessed to form a locking groove. An elastic latch is provided at the front of the handle and is laterally engaged in the locking groove to lock the extension rod and the stop block. When the extension rod and the stop block are pulled backward by a person, the groove wall of the locking groove pushes the elastic latch laterally outward, causing it to retract laterally out of the locking groove and release the lock on the extension rod and the stop block. Once the elastic latch is released, the extension rod and the stop block can be rotated backward and retracted.

[0007] Furthermore, the tongue block is specifically a circular block with a diameter of 10mm or 20mm.

[0008] Furthermore, the tongue block has two longitudinally arranged blocks, namely a distal block away from the first working head and a proximal block close to the first working head. The distal block and the proximal block are hinged together via a first longitudinal hinge axis and can rotate relative to each other to be laterally offset.

[0009] Furthermore, the distal block is provided with an arc-shaped groove facing the proximal block, and the proximal block is provided with a locking block that engages with the first end of the groove. The first end of the groove is provided with a locking structure to lock the locking block, and the second end of the groove is also provided with a locking structure. When the distal block and the proximal block rotate relative to each other to be laterally offset, the locking block disengages from the locking structure at the first end of the groove and slides along the groove to the second end of the groove where it is locked by the locking structure at the second end.

[0010] Furthermore, an extension rod extends downward from the front of the handle, and a proximal block is located on the side of the extension rod away from the first working head. The extension rod is hinged via a second longitudinal hinge axis and can be rotated relative to the extension rod to the side of the extension rod away from the handle, thereby being laterally offset from the extension rod.

[0011] Furthermore, the proximal block is provided with an arc-shaped groove facing the extension rod. The extension rod is provided with a locking block that engages with the first end of the groove. The first end of the groove is provided with a locking structure to lock the locking block. The second end of the groove is also provided with a locking structure. When the proximal block rotates relative to the extension rod to the side of the extension rod away from the handle, the locking block disengages from the locking structure at the first end of the groove and slides along the groove to the second end of the groove, where it is locked by the locking structure at the second end.

[0012] Furthermore, the first and second longitudinal hinge axes are the same hinge axis.

[0013] Furthermore, the tongue block is 10mm away from the first working head at the front end of the handle; the rear end of the handle is bent upwards to form the second working head.

[0014] When the first working head of the periosteal elevator is used to peel and open the soft tissues such as the gingiva and periosteum from the bone surface of the patient's mandibular lingual surgical area, the tongue block located behind the working head blocks the patient's tongue and the mandibular lingual surgical area, effectively preventing the tongue from invading the mandibular lingual surgical area and avoiding the tongue from obstructing the field of vision of the mandibular lingual surgical area. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the periosteal elevator of the first embodiment, and the diagram uses a broken drawing method.

[0016] Figure 2 This is a schematic diagram of the periosteal elevator in use according to the first embodiment.

[0017] Figure 3 This is a schematic diagram of the front part of the periosteal elevator in the second embodiment.

[0018] Figure 4 yes Figure 3 A magnified view of a portion of the image, showing a larger area. Figure 3 At part A in the diagram, the extension rod is detached from the handle.

[0019] Figure 5 This is a cross-sectional view of the front part of the periosteal elevator according to the second embodiment.

[0020] Figure 6 yes Figure 5 BB cross-sectional view.

[0021] Figure 7 This is a cross-sectional view of the front part of the periosteal elevator of the second embodiment, in which the extension rod and the stop block are rotated backward and retracted.

[0022] Figure 8 This is a schematic diagram of the front part of the periosteal elevator in the third embodiment.

[0023] Figure 9 This is a schematic diagram of the front part of the periosteal elevator in the third embodiment, in which the distal block and the proximal block rotate together to the lower left side of the extension rod.

[0024] Figure 10 This is a schematic diagram of the front part of the periosteal elevator in the third embodiment, in which the distal block is rotated relative to the proximal block to the lower right side of the extension rod.

[0025] Figure 11 This is a cross-sectional view of the extension rod, distal block, proximal block, hinge shaft, and silicone friction sleeve of the periosteal elevator according to the third embodiment.

[0026] Figure 12 This is a schematic diagram of the extension rod, distal block, and proximal block of the periosteal elevator according to the fourth embodiment.

[0027] Figure 13 This is a schematic diagram from another perspective of the extension rod, distal block, and proximal block of the periosteal elevator according to the fourth embodiment.

[0028] Figure 14 This is a schematic diagram of the extension rod and proximal block of the periosteal elevator according to the fourth embodiment. The view in the diagram is from front to back looking at the extension rod and proximal block.

[0029] Figure 15 yes Figure 14 A magnified view of a portion of the image, showing a larger area. Figure 14 Part C.

[0030] Figure 16 This is a schematic diagram of the extension rod and proximal block of the periosteal elevator according to the fourth embodiment. The view in the diagram is from front to back looking at the extension rod and proximal block. The distal block in the diagram is rotated to the lower left side of the extension rod.

[0031] Figure 17 yes Figure 16 A magnified view of a portion of the image, showing a larger area. Figure 16 Part D. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to specific embodiments.

[0033] First embodiment.

[0034] See periosteal elevator with tongue block. Figure 1 The device includes a handle 1, with its front end bent downwards to form a first working head 11 and its rear end bent upwards to form a second working head 12. An inclined extension rod 2 extends forward and downward from the front part 10 of the handle 1. A circular stop block 3 with a diameter of 20mm is located at the lower end of the extension rod 2, behind the first working head 11. (See...) Figure 2 When the nurse uses the first working head 11 of the periosteal elevator to peel and unfold the soft tissues 91 such as the gingiva and periosteum from the bone surface 921 of the patient's mandibular lingual surgical area 92, the tongue block 3 located behind the first working head 11 is positioned between the patient's tongue 93 and the mandibular lingual surgical area 92, effectively preventing the tongue 93 from intruding into the mandibular lingual surgical area 92 and avoiding obstruction of the field of vision of the mandibular lingual surgical area 92 by the tongue 93. Because the tongue block 3 is round with rounded edges, it can avoid scratching or irritating the oral soft tissues. The distance L1 between the tongue block 3 and the first working head 11 is 10mm, which is neither too close to nor too far from the first working head 11, ensuring that the tongue 93 is effectively blocked outside the mandibular lingual surgical area 92 without interfering with the normal operation of the first working head 11, and also avoiding excessive pushing of the tongue 93. When operating on the maxillary surgical area, the nurse can switch to using the second working head 12 at the rear end of the handle 1. At this time, the tongue block 3 at the front 10 is not involved in the operation and will not interfere with the nurse's operation.

[0035] Second embodiment.

[0036] The second embodiment is largely the same as the first embodiment, with the following differences.

[0037] See Figure 3 and Figure 4 The upper end 21 of the extension rod 2 is modified to hinge the front part 10 of the handle 1, and the stop tongue block 3 is indirectly hinged to the front part of the handle 1 via the extension rod 2. The left and right sides of the upper end 21 of the extension rod 2 are recessed inward to form two hemispherical locking grooves 211. Figure 4 Due to the viewing angle, only the right-hand locking groove 211 is shown. The front part 10 of the handle 1 has two elastic latches 13 made of metal material on the left and right (other embodiments may use other elastic materials, such as PVC material). The two elastic latches 13 each have a hemispherical protrusion 131 protruding towards the extension rod 2. Figure 4 Due to the perspective, only the left-aligned convex portion 131 is shown. (See...) Figure 5 and Figure 6The left and right protrusions 131 respectively snap into the left and right locking grooves 211 to lock the extension rod 2 and the stop block 3. In this state, the extension rod 2 and the stop block 3 cannot rotate. The front part 10 of the handle 1 is provided with a limiting block 14, which blocks the front side of the extension rod 2 and plays a limiting role to prevent the extension rod 2 from rotating too far forward. Since the limiting block 14 forms a rigid support by contacting the front side of the extension rod 2, the stop block 3 is supported by the tongue body 93 (see Figure 2 When the device is pushed, part of the external force borne by the tongue block 3 is transmitted to the handle 1 through the extension rod 2 and the limiting block 14. This reduces the external force transmitted to the protrusion 131 of the elastic lock 13 through the extension rod 2, preventing the protrusion 131 of the elastic lock 13 from accidentally dislodging out of the locking groove 211 due to excessive force, thus ensuring a stable and reliable locking state. When the nurse needs to store the periosteal elevator: pull the extension rod 2 and the tongue block 3 backward, the groove wall 2110 of the locking groove 211 of the extension rod 2 will push the protrusion 131 of the elastic lock 13 laterally outward, causing the protrusion 131 to disengage laterally out of the locking groove 211 and release the lock on the extension rod 2 and the tongue block 3; continue to pull the extension rod 2 and the tongue block 3 backward, causing the extension rod 2 and the tongue block 3 to rotate backward and retract against the handle 1, as shown. Figure 7 As shown, in this state, the periosteal elevator has a compact overall structure and is easy to store.

[0038] Third embodiment.

[0039] The third embodiment is largely the same as the second embodiment, with the following differences.

[0040] See Figure 8 The tongue block 3 consists of two longitudinally arranged blocks: a distal block 5, located away from the first working head 11, and a proximal block 6, located closer to the first working head 11. Both distal block 5 and proximal block 6 are circular blocks with a diameter of 10 mm. Proximal block 6 is located on the side of extension rod 2 away from the first working head 11. The distal block 5, proximal block 6, and extension rod 2 are longitudinally stacked together, and their lower ends are hinged together via a longitudinal hinge shaft 4. Existing silicone friction sleeves 7 are provided between each of the three blocks and the longitudinal hinge shaft 4. Figure 11 As shown. The silicone friction sleeve 7 provides moderate rotational damping, preventing the distal block 5 and proximal block 6 from rotating due to slight impacts. Therefore, the distal block 5 and proximal block 6 can maintain a compact, longitudinally stacked position with the extension rod 2 under normal conditions, reducing the overall space occupied. See... Figure 8 and Figure 9 When using it, the nurse first manually rotates the distal block 5 and proximal block 6 together to the lower left side of the extension rod 2, so that the distal block 5 and proximal block 6 are laterally offset from the extension rod 2. Then, the distal block 5 is rotated relative to the proximal block 6 to the lower right side of the extension rod 2, so that it is laterally offset from the proximal block 6. Figure 10 As shown, in this state, the distal block 5 and the proximal block 6 together form a wider combined blocking surface, effectively ensuring the obstruction of the tongue 93 (see...). Figure 2 The blocking effect.

[0041] Fourth embodiment.

[0042] The fourth embodiment is largely the same as the third embodiment, with the following differences.

[0043] See Figure 13 and Figure 14 The proximal block 6 is provided with a first slot 61 facing the extension rod 2, and the first slot 61 is an arc shape surrounding the longitudinal hinge axis 4. See Figure 14 and Figure 15 The first end 611 of the first slot 61 is provided with a first protrusion 6111 protruding inward from the first end 611. The first protrusion 6111 and the groove wall 6110 of the first end 611 of the first slot 61 together form a first clamping structure 601. The second end 612 of the first slot 61 is provided with a second protrusion 6121 protruding inward from the first end 611. The second protrusion 6121 and the groove wall 6120 of the second end 612 of the first slot 61 together form a second clamping structure 602. The extension rod 2 is provided with a first locking block 201. Normally, the first locking block 201 is locked into the first clamping structure 601 of the first end 611 of the first slot 61 and is clamped by the first clamping structure 601. It cannot slide along the first slot 61, that is, the proximal block 6 and the extension rod 2 cannot rotate relative to each other. Therefore, the proximal block 6 is not likely to rotate accidentally relative to the extension rod 2 under the action of external force. The nurse manually rotates the proximal block 6 to the lower left side of the extension rod 2. The first slot 61 then rotates relative to the first locking block 201 along with the proximal block 6. During this process, the first locking block 201 pushes outward against the first protrusion 6111 of the first locking structure 601, causing the groove wall 6110 of the first end 611 of the first slot 61 to deform outward until the first locking block 201 disengages from the first locking structure 601. (See...) Figure 16 and Figure 17 The first locking block 201 slides along the first locking groove 61 to the second end 612 of the first locking groove 61, and pushes the second protrusion 6121 of the second locking structure 602 outward, so that the groove wall 6120 of the second end 612 of the first locking groove 61 deforms outward until the first locking block 201 is locked into the second locking structure 602. In this state, the first locking block 201 is locked by the second locking structure 602 and cannot slide along the first locking groove 61. That is, the proximal block 6 and the extension rod 2 cannot rotate relative to each other. Therefore, the proximal block 6, which has rotated to the lower left side of the extension rod 2, is not easy to rotate accidentally under the action of external force.

[0044] Similarly, see Figure 12 and Figure 13The distal block 5 has a second slot 52 facing the proximal block 6. The second slot 52 is an arc shape surrounding the longitudinal hinge axis 4. The first end 521 of the second slot 52 has a third clamping structure 503, and the second end 522 has a fourth clamping structure 504. The proximal block 6 has a second locking block 602. Normally, the second locking block 602 is engaged in the third clamping structure 503 at the first end 521 of the second slot 52 and is clamped by the third clamping structure 503. During the process of the distal block 5 rotating relative to the proximal block 6 to the lower right side of the extension rod 2, the second locking block 602 disengages from the third clamping structure 503, slides along the second slot 52 to the second end 522 of the second slot 52, and is engaged in the fourth clamping structure 504 and is clamped by the fourth clamping structure 504. This will not be described in detail here.

[0045] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.

Claims

1. A periosteal elevator with a tongue block, comprising a handle, the front end of which is bent downwards to form a first working head, characterized in that: A stop block extends downward from the front of the handle and is located behind the first working head; the stop block is hinged to the front of the handle and can be rotated backward to be placed against the handle.

2. The periosteal elevator according to claim 1, characterized in that: An extension rod is hinged to the front of the handle. The extension rod is a slanted rod that slopes forward and downward. A stop block is located at the lower end of the extension rod. The front end of the handle is hinged to the extension rod. The extension rod is recessed to the side to form a locking groove. An elastic latch is provided at the front of the handle and engages laterally in the locking groove to lock the extension rod and the stop block. When the extension rod and the stop block are pulled backward by a person, the groove wall pushes the elastic latch laterally outward, causing it to retract laterally out of the locking groove and release the lock on the extension rod and the stop block. Once the elastic latch is released, the extension rod and the stop block can rotate backward and retract.

3. The periosteal elevator according to claim 1, characterized in that: The tongue block has two longitudinally arranged blocks, namely a distal block away from the first working head and a proximal block close to the first working head. The distal block and the proximal block are hinged together by the first longitudinal hinge axis and can rotate relative to each other to be laterally offset.

4. The periosteal elevator according to claim 3, characterized in that: The distal block has an arc-shaped groove facing the proximal block. The proximal block has a locking block that engages with the first end of the groove. The first end of the groove has a locking structure that locks the locking block. The second end of the groove also has a locking structure. When the distal block and the proximal block rotate relative to each other to be laterally offset, the locking block disengages from the locking structure at the first end of the groove and slides along the groove to the second end of the groove, where it is locked by the locking structure at the second end.

5. The periosteal elevator according to claim 3, characterized in that: An extension rod extends downward from the front of the handle. The proximal block is located on the side of the extension rod away from the first working head. The extension rod is hinged via a second longitudinal hinge axis and can be rotated relative to the extension rod to the side of the extension rod away from the handle, thus being laterally offset from the extension rod.

6. The periosteal elevator according to claim 5, characterized in that: The proximal block has an arc-shaped groove facing the extension rod. The extension rod has a locking block that engages with the first end of the groove. The first end of the groove has a locking structure to lock the locking block. The second end of the groove also has a locking structure. When the proximal block rotates relative to the extension rod to the side of the extension rod away from the handle, the locking block disengages from the locking structure at the first end of the groove and slides along the groove to the second end of the groove, where it is locked by the locking structure at the second end.

7. The periosteal elevator according to claim 5, characterized in that: The first and second longitudinal hinge axes are the same hinge axis.

Images