CN212592488U - Novel maxillary residual root forceps - Google Patents

Abstract

The utility model discloses a novel maxillary stump forceps, which comprises a forceps handle and a forceps beak which are hinged through a joint, wherein the forceps beak comprises a forceps beak clamping section and a forceps beak force arm section, an obtuse angle beta with a downward opening is formed between the forceps beak force arm section and the forceps handle, and an obtuse angle alpha with an upward opening is formed between the forceps beak clamping section and the forceps beak force arm section; under two pincers beak free closed condition, be provided with the interval between two pincers beak centre gripping section terminal edges, when pressing from both sides tight root of a tooth, avoid the clamping-force loading too fast and lead to pressing from both sides garrulous root of a tooth, can the centre gripping firm again simultaneously, prevent the slippage, avoid haring adjacent tooth and soft tissue.

Description

Novel maxillary residual root forceps

Technical Field

The utility model belongs to oral cavity maxillofacial surgery medical instrument field, concretely relates to new-type incomplete root of upper jaw pincers.

Background

Teeth can be classified into crowns exposed in the oral cavity and roots embedded in alveolar bone. For crowns that have destroyed stumps remaining in the alveolar bone (at or below the gingival level), extraction is often required because there is no value retained by the treatment. However, the beak clamping section of the traditional maxillary root forceps is too thick and too wide, has larger clamping stress, is used for removing a larger, complete and difficultly-broken maxillary tooth root, and cannot go deep into the lower part of the gum to clamp a short and short residual root with larger brittleness; in addition, the pincers handle and the pincers beak of traditional lower jaw root pincers are the rigidity design, and the butt joint clamping face of pincers beak laminates completely, even if can carry the higher incomplete root in position, in operation process, because the clamping-force is big, very easily presss from both sides it garrulous, leads to incomplete root can not wholly be drawn out, need draw out the root of tooth with other instruments, wastes time and energy, still has the risk of damage alveolar bone, damage adjacent tooth even more. The labor intensity of doctors is increased, and the physiological and psychological of patients are injured to a certain extent.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a novel maxillary stump forceps which is used for pulling out the stump with incomplete upper jaw, easy clipping or deeper position (namely, positioned on the gum plane or below); when the tooth root is clamped, the tooth root is prevented from being crushed due to the fact that clamping force is loaded too fast, clamping can be conducted stably, slipping is prevented, and damage to adjacent teeth and soft tissues is avoided.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a novel maxillary residual root forceps comprises a forceps handle and a forceps beak which are hinged through a joint, wherein the forceps beak comprises a forceps beak clamping section and a forceps beak force arm section, an obtuse angle beta with a downward opening is formed between the forceps beak force arm section and the forceps handle, and an obtuse angle alpha with an upward opening is formed between the forceps beak clamping section and the forceps beak force arm section; and under the free closed state of the two clamp beaks, a space is arranged between the tail end cutting edges of the clamping sections of the two clamp beaks.

Furthermore, the forceps handles are connected with the forceps beak through joints, the two forceps handles are hinged through the joints, the side surface of the structure formed by the forceps handles and the forceps beak is S-shaped, the alpha angle is 130-140 degrees, and the beta angle is 130-140 degrees.

Furthermore, an included angle of 20-25 degrees is formed between the opposite side surfaces of the two forceps beak force arm sections, and the vertex of the included angle is close to the joint.

Furthermore, the thickness and the width of the forceps beak force arm section are gradually reduced from the hinged part to the bending part of the forceps beak, and the cross sectional area of the forceps beak force arm section is far smaller than that of the forceps handle.

Furthermore, two opposite surfaces of the tail sections of the two forceps beak clamping sections are provided with cambered surface grooves, and the width of two ends of each cambered surface groove is smaller than the width of the abdomen of each cambered surface groove.

Further, from the starting position of the cambered surface groove of the forceps beak clamping section to the tail end of the forceps beak clamping section, the thickness of the cambered surface groove is gradually reduced, and a cutting edge is formed at the tail end of the forceps beak clamping section.

Furthermore, a plurality of circular through holes are formed in the forceps handle.

Furthermore, the interval between the two cutting edges at the tail end of the clamp beak clamping section is 2-3 mm, the clamp handle and the clamp beak are made of matte surfaces, and the outer side surface of the clamp handle is designed to be a cambered surface.

Furthermore, the length of the nipper clamping section is 20-25 mm, and the length of the nipper force arm section is 20-25 mm.

Further, the outer surface of the forceps beak is coated with an antibacterial coating.

Further, be provided with 20 ~ 25 contained angles between two pincers beak power arm section opposite flank, the summit of contained angle is close to the joint, press from both sides tight in-process, press from both sides tightly including two segmentations, at first give a pretightning force of pincers handle, the contained angle summit of two pincers beak power arm sections is inconsistent until, the pretension has been accomplished this moment promptly, when extracting teeth, further apply for a great effort of pincers handle, at this moment, the contained angle between two pincers beak power arm section opposite faces reduces, interval when pincers beak centre gripping section between is less than the pretension, press from both sides tight root of a tooth, provide sufficient strength and extract teeth.

Furthermore, the thickness and the width of the forceps beak force arm section are gradually reduced from the hinged part to the bending part of the forceps beak, and the cross sectional area of the forceps beak force arm section is smaller than that of the forceps handle, so that the forceps beak has better toughness and is softer in force transmission, a buffering effect is realized when a tooth root is clamped, and the tooth root is further prevented from being crushed; moreover, through the bent structure design, the visual field of an operator is greatly increased, and details in tooth extraction operation can be conveniently observed.

Furthermore, the opposite surfaces of the tail sections of the two forceps beak clamping sections are provided with corresponding cambered surface grooves, the width of the two ends of each cambered surface groove is smaller than the width of the abdomen of each cambered surface groove, the structural design is reasonable, the structural shape of the tooth is met, the forceps beak can encircle the tooth root, the contact surface between the forceps beak and the tooth root is increased, and the smooth tooth root extraction is facilitated.

Further, from the starting department of the cambered surface recess of pincers beak clamping section to pincers beak clamping section end, the thickness of cambered surface recess reduces gradually to form the blade at pincers beak clamping section end, be favorable to pincers beak to cut into and stretch into the gap of root of a tooth and alveolus, increase the length of centre gripping root of a tooth, avoid haring adjacent tooth and soft tissue.

Furthermore, the plurality of circular through holes are formed in the clamp handle, so that the clamp handle has very good toughness on the premise of not changing the rigidity of the clamp handle, the clamping force of a conductive palm is buffered, the phenomenon that the tooth root is crushed due to overlarge stress is avoided, the plurality of circular through holes are formed in the clamp handle, the weight is reduced, the operation is flexible, and the circular through holes also have an anti-skidding effect.

Further, the arc surface of pincers handle makes the operator feel comfortable when holding, adopts the matte type top layer, can not produce the reflection under the light shines, does benefit to the operator and observes inside the oral cavity.

Furthermore, the length of the forceps beak clamping section is 20-25 mm, and the length of the forceps beak force arm section is 20-25 mm, so that the forceps beak force arm section is suitable for the oral cavity and tooth profile of an Asian person and can effectively extend to all tooth roots.

Furthermore, the outer surface of the beak of the pliers is coated with an antibacterial coating, so that harmful bacteria can be effectively inhibited from breeding, and the infection risk of patients is reduced.

Compared with the prior art, the utility model discloses following beneficial effect has at least: the forceps handle is hinged with the forceps beak through a joint, the forceps beak comprises a forceps beak clamping section and a forceps beak force arm section, an obtuse angle is formed between the forceps beak clamping section and the forceps beak force arm section, a plane formed by the forceps beak clamping section and the forceps beak force arm section is perpendicular to an opening plane of the forceps handle, and the forceps beak clamping section can effectively stretch into a part needing to remove the residual root without shielding the sight of an operator; the circular through hole design of the clamp handle can effectively avoid rigid transmission of clamping force, and avoids stress concentration while transmitting the clamping force of the hand of an operator to the tooth root; under two pincers handles free closed state, be provided with the interval between the terminal blade of two pincers beak centre gripping sections, effectively hold the root of a tooth, effectively avoided conventional root forceps can only rely on medical personnel's experience to judge the condition of the broken tooth root of a tooth of clamp that carries out the control of power way and bring, guaranteed going on smoothly of tooth extraction, avoid causing more misery for the disease.

Drawings

Fig. 1 is a top view of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a schematic sectional view taken along line a-a in fig. 2.

Fig. 4 is a partial structure diagram of the nipper beak clamping section.

In the attached drawing, 1-forceps handle, 2-forceps beak clamping section, 3-forceps beak force arm section, 4-cambered surface groove, 5-through hole and 6-forceps beak.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the utility model comprises a forceps handle 1 and a forceps beak 6, the forceps handle and the forceps beak are connected through a joint, wherein the forceps beak 6 comprises a forceps beak clamping section 2 and a forceps beak force arm section 3; under 6 free closed states of two pincers beaks, be provided with the interval between 2 terminal blades of two pincers beak centre gripping sections, be provided with 20 ~ 25 contained angles between 3 opposite side of two pincers beak power arm sections, the summit of contained angle is close to the joint.

As shown in fig. 2, the side of the utility model is S-shaped, an obtuse angle β with an opening of 130-140 degrees is formed between the forceps beak force arm section 3 and the forceps handle 1, an obtuse angle α with an opening of 130-140 degrees is formed between the forceps beak clamping section 2 and the forceps beak force arm section 3, the thickness and width of the forceps beak force arm section 3 from the hinge to the bending part of the forceps beak 6 are gradually reduced, the cross-sectional area of the forceps beak force arm section 3 is smaller than that of the forceps handle 1, and the forceps handle 1 is provided with a plurality of circular through holes 5; the opening orientations of α and β refer to the opening orientations of the present invention in the use state.

As shown in fig. 3 and 4, the inner side surfaces of the two forceps beak clamping sections 2 are provided with arc-shaped grooves 4, the widths of the two ends of each arc-shaped groove 4 are smaller than the width of the abdomen of each forceps beak clamping section, the thicknesses of the arc-shaped grooves 4 are gradually reduced from the beginning of the arc-shaped groove 4 of the forceps beak clamping section 2 to the tail end of the forceps beak clamping section 2, and a cutting edge is formed at the tail end of the forceps beak clamping section 2.

The utility model discloses an in the preferred embodiment, the interval between 2 terminal twolip edges of pincers beak centre gripping section is 2 ~ 3mm, adopts the matte surface, and 1 lateral surface of pincers handle is the cambered surface design, and 2 length of pincers beak centre gripping section are 20 ~ 25mm, and the length of pincers beak power arm section 3 is 20 ~ 25mm, and the surface coating of pincers beak 6 has antibacterial coating.

Claims (10)

1. A novel maxillary residual root forceps is characterized by comprising a forceps handle (1) and a forceps beak (6) which are hinged through a joint, wherein the forceps beak (6) comprises a forceps beak clamping section (2) and a forceps beak force arm section (3), an obtuse angle beta with a downward opening is formed between the forceps beak force arm section (3) and the forceps handle (1), and an obtuse angle alpha with an upward opening is formed between the forceps beak clamping section (2) and the forceps beak force arm section (3); under the free closed state of the two clamp beaks (6), a space is arranged between two cutting edges at the tail ends of the two clamp beak clamping sections (2).

2. The new maxillary stump forceps of claim 1, wherein the side of the structure formed by the forceps handle (1), the forceps beak (6) and the joint is S-shaped, the alpha angle is 130-140 degrees, and the beta angle is 130-140 degrees.

3. The new maxillary stump forceps of claim 1, wherein an included angle of 20-25 degrees is formed between the opposite side surfaces of the two forceps beak force arm sections (3), and the vertex of the included angle is close to the joint.

4. The new maxillary stump forceps of claim 1, wherein the thickness and width of the force arm section of the beak (3) are gradually reduced from the hinge to the bending part of the beak (6), and the cross-sectional area of the force arm section of the beak (3) is smaller than that of the forceps handle (1).

5. The new maxillary stump forceps of claim 1, wherein the opposite surfaces of the tail sections of the two forceps beak clamping sections (2) are provided with corresponding cambered grooves (4), and the width of the two ends of each cambered groove (4) is smaller than that of the abdomen of the cambered groove.

6. The new maxillary stump forceps of claim 1, wherein the thickness of the arc-shaped groove (4) is gradually reduced from the beginning of the arc-shaped groove (4) of the forceps beak clamping section (2) to the end of the forceps beak clamping section (2), and a cutting edge is formed at the end of the forceps beak clamping section (2).

7. The new maxillary stump forceps of claim 1, wherein the forceps handle (1) is provided with a plurality of circular through holes (5).

8. The novel maxillary stump forceps as claimed in claim 1, wherein the distance between the two cutting edges at the tail end of the forceps beak clamping section (2) is 2-3 mm, the forceps handle (1) and the forceps beak (6) adopt matte surfaces, and the outer side surface of the forceps handle (1) is designed to be an arc surface.

9. The new maxillary stump forceps of claim 1, wherein the length of the forceps beak clamping section (2) is 20-25 mm, and the length of the forceps beak force arm section (3) is 20-25 mm.

10. The new maxillary stump forceps of claim 1, wherein the outer surface of the beak (6) is coated with an antibacterial coating.

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