Medical crown extraction forceps for oral restoration

Abstract

Medical crown extraction forceps for oral restoration, comprising two sets of forceps handles (1), wherein the two sets of forceps handles (1) are articulated to one another by a hinge, characterized in that a sliding groove (2) is provided at the front end of the forceps handles (1), wherein a forceps mouthpiece (3) is provided to slide on the inside of the sliding groove (2), wherein a screw sleeve (4) is provided fixedly on the side wall of the sliding groove (2), wherein a screw rod (5) is connected to the internal thread of the screw sleeve (4), and wherein the forceps mouthpiece (3) is provided with a plurality of sets of positioning holes (6) for inserting the screw rod (5) on the side wall in the direction of the side of the screw sleeve (4).

Description

Technical field

[0001] The present utility model relates to the technical field of stomatological medical devices, in particular a medical crown extraction forceps for oral restoration. State of the art

[0002] Crown extraction forceps are a medical product used in dental surgery, mainly for removing dentures or crowns from the oral cavity.

[0003] Chinese patent CN215606413U discloses a crown extraction forceps with an integrated spring device comprising a forceps handle, a joint, a jaw, and a silicone cushion. A high-strength spring is integrated into the joint, and the forceps handle is driven by the elasticity of the high-strength spring to open and maintain tension. Two ends of the high-strength spring are inserted into the notch of the joint. The forceps handle comprises a first and a second grip, which are movably riveted to the joint, and the rivets are guided by the integrated high-strength spring. There is a small hole in the center of the jaw. The silicone cushion has a rough surface in contact with the crown, and the other side of the silicone cushion is a column-shaped projection that connects to the small hole in the jaw section.

[0004] However, the jaw of the crown extraction forceps above is attached to the front end of the clamp handle, and medical personnel cannot flexibly adjust the position of the jaw to factors such as the position of the crown to be extracted in the oral cavity and usage habits, and the jaw may be too long or too short during the crown extraction process, which can lead to discomfort during the operation. Content of the present application

[0005] The present utility model provides a medical crown extraction forceps for oral restoration which solves the technical problem that, in the prior art, the jaw of the crown extraction forceps is attached to the front end of the forceps handle and the jaw may be too long or too short during the crown removal process, leading to inconvenience in operation.

[0006] In view of the above problems, the present utility model develops the following technical solution:

[0007] A medical crown extraction forceps for oral restoration, comprising two sets of forceps handles, wherein the two sets of forceps handles are articulated to each other by a hinge, wherein a sliding groove is provided at the front end of the forceps handles, wherein a forceps mouthpiece is provided to slide on the inside of the sliding groove, wherein a screw sleeve is provided fixed to the side wall of the sliding groove, wherein a screw rod is connected to the internal thread of the screw sleeve, and wherein the forceps mouthpiece is provided with a plurality of sets of positioning holes for inserting the screw rod on the side wall in the direction of the side of the screw sleeve.

[0008] Furthermore, the sliding groove is provided with a through slot, and the indicator block is firmly connected to the surface of the jaw of the clamp, the indicator block projecting through the through slot to the outside of the sliding groove, and a scale is provided on the surface of the sliding groove near the side of the through slot.

[0009] Furthermore, the pincer-like jaw is provided with non-slip protrusions on the surface of the end head, the non-slip protrusions being densely distributed in a multitude of sets on the surface of the pincer-like jaw.

[0010] Furthermore, the rear end of the plier handle has an inwardly curved, bent structure, wherein the rear end of the plier handle is provided with a grip sleeve, and wherein an anti-slip pattern is provided on one side of the grip sleeve.

[0011] Furthermore, a set of return springs is connected between the rear ends of the two sets of pliers handles, with the two ends of the return springs each resting against the side walls of the two sets of pliers handles.

[0012] Furthermore, the handle and jaws of the pliers are made of stainless steel.

[0013] In comparison with existing technology, the present utility model has the following advantageous effects: The present utility model is equipped with a sliding groove, a forceps jaw, a screw sleeve, a screw rod and positioning holes, so that after the extraction of crowns in the oral cavity, the medical personnel are able to take into account habit and other factors, the flexibility of the forceps jaw can be adjusted to the length of the setting, so that the extraction of crown forceps is conducive to the use of the medical personnel during surgery, with a high degree of applicability. Brief description of the drawing

[0014] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the attached drawings used in describing these embodiments are briefly described below. Of course, the attached drawings in the following description represent only some of the embodiments of the present utility model, and a person skilled in the art could create other attached drawings based on these without any creative effort. Fig. Figure 1 shows a schematic representation of the structure of the present utility model; Fig. Figure 2 shows an enlarged view of A in Fig. 1 of the present utility model; Fig. Figure 3 shows a schematic representation of the divided structure of the sliding groove and the pincer jaw in the present utility model; Fig. Figure 4 shows an enlarged view of B in Fig. 3 of the present utility model.

[0015] Reference symbol list: 1. Pliers handle; 2. Sliding groove; 3. Pliers jaw; 4. Screw sleeve; 5. Screw rod; 6. Positioning hole; 7. Through slot; 8. Display block; 9. Scale; 10. Non-slip ridge; 11. Handle sleeve; 12. Anti-slip pattern; 13. Return spring. Detailed description of the embodiments

[0016] To clarify the purpose, technical solutions, and advantages of this utility model, the technical solutions in the embodiments of this utility model are described clearly and completely below in conjunction with the attached drawings. Naturally, the described embodiments represent only a subset of the embodiments of this utility model, but not all of them. Based on the embodiments of this utility model, all other embodiments that a person skilled in the art can produce without creative effort fall within the scope of protection of this utility model.

[0017] Accordingly, the following detailed description of embodiments of the present utility model, which are contained in the attached drawings, is not intended to limit the scope of the present utility model for which protection is claimed, but merely presents selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments that a person skilled in the art can produce without creative effort fall within the scope of protection of the present utility model.

[0018] As in the Fig. As shown in Figures 1 to 4, a medical crown extraction forceps for oral restoration comprises two sets of forceps handles 1, the two sets of forceps handles 1 are connected to each other by a hinge, a sliding groove 2 is provided at the front end of the forceps handles 1, a forceps beak 3 is provided within the sliding groove 2, the forceps beak 3 can be moved within the sliding groove 2, and the ends of the forceps beak 3 are curved inwards; when the front ends of the two sets of forceps handles 1 are close together, the ends of the two sets of forceps beaks 3 are close together and close to each other so that they can clamp the patient's tooth crown;The side wall of the sliding groove 2 is fixedly fitted with a screw sleeve 4, and the screw sleeve 4 is provided with an internal thread for a screw rod 5, and the outer end of the screw rod 5 is provided with a knob that healthcare personnel can align and turn, and by turning the screw rod 5, the screw rod 5 can be moved in the inner or outer direction of the sliding groove 2 under the driving force of the screw sleeve 4; On the side wall of the forceps jaw 3 towards the side of the screw sleeve 4, several sets of positioning holes 6 are provided, the size of which corresponds to the inner end of the screw rod 5 so that they can be used for inserting the inner end of the screw rod 5.

[0019] During application, the medical personnel hold the rear end of the two forceps handles 1 in their hand and extend the front end of the two forceps handles 1 into the patient's mouth so that the forceps jaws 3 come to rest on both sides of the patient's crowns; when the medical personnel grasp the rear end of the forceps handle 1 inwards, the front ends of the two sets of mutually articulated forceps handles 1 close together so that the forceps jaws 3 lie close together and clamp the crown, enabling the medical personnel to pull out the clamped crown, and before the crown is pulled out, the medical personnel can extend the forceps jaw 3 to make it telescopic and sliding inside the sliding groove 2 in order to adjust the exposed length of the forceps jaw 3;Once the adjustment is complete, turning the knob at the outer end of the screw rod 5 allows the screw rod 5 to be moved into the interior of the sliding groove 2 under the driving force of the screw sleeve 4. At this point, the inner end of the screw rod 5 is inserted into the corresponding positioning holes 6 on the forceps jaw 3, preventing the forceps jaw 3 from sliding into the interior of the sliding groove 2. This allows the forceps jaw 3 to maintain the set length of the exposed jaw. Therefore, before removing the crown, the medical professional can flexibly adjust the exposed length of the forceps jaw 3 according to the position of the removed crown in the oral cavity, as well as usage habits and other factors. This makes the crown extraction forceps more convenient for use by the medical professional and gives it a high degree of applicability.

[0020] Furthermore, as in the Fig. 2 and Fig. As shown in Figure 3, the sliding groove 2 is provided with a through slot 7, the surface of the forceps jaw 3 is fixedly connected to a display block 8, and the display block 8 extends to the outside of the sliding groove 2 through the through slot 7; as the forceps jaw 3 slides inside the sliding groove 2, the display block 8 slides into a corresponding position along the direction of the through slot 7, and the surface of the sliding groove 2 is provided with a scale 9 near the side of the through slot 7, so that healthcare personnel can accurately understand the sliding position of the forceps jaw 3 by observing the display block 8 pointing to the corresponding scale 9, thus facilitating the precise adjustment of the exposed length of the forceps jaw 3.

[0021] Furthermore, as in Fig. As shown in Figure 4, the end surface of the forceps jaw 3 is provided with non-slip protrusions 10, which are densely distributed in numerous sets across the surface of the forceps jaw 3. When the end of the forceps jaw 3 clamps the patient's tooth crown, the non-slip protrusions 10 increase the frictional force between the end of the forceps jaw 3 and the patient's tooth crown, thus enabling a more secure clamping of the patient's tooth crown and preventing slippage.

[0022] Furthermore, as in Fig. As shown in Figure 1, the rear end of the forceps handle 1 is an inwardly curved, arc-shaped structure, so that during the process of grasping the rear ends of the two sets of forceps handles 1 by the medical personnel, the arc-shaped structure of the forceps handles 1 can adhere more firmly to the hands of the medical personnel, thus making it easier for the medical personnel to exert an inward grip on the two sets of forceps handles 1; The rear end of the forceps handle 1 is provided with a grip sleeve 11, the grip sleeve 11 is made of a soft rubber material that improves the comfort of the hand of the medical personnel, and an anti-slip pattern 12 is provided on one side of the grip sleeve 11, which increases the friction between the rear end of the forceps handle 1 and the hand of the medical personnel and prevents slippage when holding the rear end of the forceps handle 1.

[0023] Furthermore, as in Fig.As shown in Figure 1, a set of return springs 13 is connected between the rear ends of the two sets of pliers handles 1, and the two ends of the return springs 13 are each in contact with the side walls of the two sets of pliers handles 1 to generate an elastic support effect at the rear ends of the two sets of pliers handles 1.When the medical personnel grasp the rear ends of the two sets of forceps handles 1 inwards, so that the jaws 3 at the front ends of the two sets of forceps handles 1 are close together, the return springs 13 are compressed by the force and produce a reverse elastic effect on the rear ends of the two sets of forceps handles 1; when the two sets of forceps handles 1 are released, the rear ends of the two sets of forceps handles 1 are moved away from each other and reset under this elastic force, so that the jaws 3 of the front ends of the two sets of forceps handles 1 can be opened quickly, thus facilitating control of the jaws 3 by the medical personnel when using the crown extraction forceps, making the operating procedure more convenient.

[0024] Furthermore, the pliers handle 1 and the pliers jaw 3 are made of stainless steel, which has high strength and wear resistance and is not easy to rust and corrode, thus ensuring the service life of the crown extraction pliers.

[0025] The foregoing descriptions represent only a preferred embodiment of the present utility model and are not intended to restrict the present utility model, which may be subject to various modifications and adaptations for the person skilled in the art. All modifications, equivalent replacements, improvements, etc., made within the spirit and principles of the present utility model are included in the scope of protection of the present utility model. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 215606413U

[0003]

Claims

[1] Medical crown extraction forceps for oral restoration, comprising two sets of forceps handles (1), the two sets of forceps handles (1) being connected to each other by a hinge, characterized by that a sliding groove (2) is provided at the front end of the pliers handles (1), wherein a pliers nose (3) is slidably provided on the inside of the sliding groove (2), wherein a screw sleeve (4) is fixedly provided on the side wall of the sliding groove (2), wherein a screw rod (5) is connected to the internal thread of the screw sleeve (4), and wherein the pliers nose (3) is provided with a plurality of sets of positioning holes (6) for inserting the screw rod (5) on the side wall towards the side of the screw sleeve (4). [2] Medical crown extraction forceps for oral restoration according to claim 1, characterized bythat the sliding groove (2) is provided with a through slot (7), and that the indicator block (8) is firmly connected to the surface of the pliers jaw (3), wherein the indicator block (8) projects through the through slot (7) to the outside of the sliding groove (2), and wherein a scale (9) is provided on the surface of the sliding groove (2) near the side of the through slot (7). [3] Medical crown extraction forceps for oral restoration according to claim 1, characterized by that the pliers jaw (3) is provided with non-slip elevations (10) on the surface of the end head, wherein the non-slip elevations (10) are densely distributed in a plurality of sets on the surface of the pliers jaw (3). [4] Medical crown extraction forceps for oral restoration according to claim 1, characterized bythat the rear end of the pliers handle (1) has an inwardly curved, bent structure, wherein the rear end of the pliers handle (1) is provided with a grip sleeve (11), and wherein an anti-slip pattern (12) is provided on one side of the grip sleeve (11). [5] Medical crown extraction forceps for oral restoration according to claim 1, characterized by that a set of return springs (13) is connected between the rear ends of the two sets of pliers handles (1), wherein the two ends of the return springs (13) each rest in the side walls of the two sets of pliers handles (1). [6] Medical crown extraction forceps for oral restoration according to claim 1, characterized by that the pliers handle (1) and the pliers jaw (3) are made of stainless steel.

Images