Membrane tongs

Abstract

The utility model discloses a membrane nail pliers, including two armatures, the alveolar bone position is left between two armatures front part, the first armature front end detachably installs membrane nail clamp, two armatures rear part is the holding part, the quadrilateral clamping groove of front -back direction is opened to the first armature front part, the membrane nail clamp is corresponding and is equipped with quadrilateral clamping block, the first armature is equipped with axial locking portion, and the first armature middle part is equipped with the unlocking portion. When installing the membrane nail clamp, its quadrilateral clamping block is clamped into the clamping groove, and the axial locking portion of the first armature locks the membrane nail clamp so that the membrane nail clamp can not move axially, and the membrane nail clamp is installed to the first armature front end in this way, and can not rotate circumferentially and can not move axially. When nailing the membrane, the first armature exerts force on the membrane nail through the membrane nail clamp, and the membrane nail clamp can not rotate circumferentially around the first armature due to the blocking of the clamping groove wall, even if the membrane nail exerts lateral reaction force on the membrane nail clamp and deviates to one side, the membrane nail clamp also can not rotate circumferentially around the first armature under the action of the lateral reaction force.

Description

Technical Field

[0001] This utility model relates to the field of dental instrument technology, specifically to diaphragm screw clamps. Background Technology

[0002] Patent document CN215228598U discloses a membrane stapler clamp, which includes two clamp arms hinged together, with an alveolar bone space between the front parts of the two clamp arms. The front end of the first clamp arm has a thread in the front-back direction, and a membrane stapler clip is detachably installed through the threaded connection. When it is necessary to staple the membrane staple to the alveolar bone, for example, when it is necessary to staple the membrane staple to the right side of the left alveolar bone: the doctor first uses the membrane stapler clip to hold the membrane staple, and then holds the rear parts of the two clamp arms, with the front part of the first clamp arm on the right and the front part of the second clamp arm on the left, and extends the front parts of the two clamp arms from back to front into the left side of the patient's mouth, so that the left alveolar bone enters the alveolar bone space; then, the doctor manipulates the rear parts of the two clamp arms to move the front parts of the two clamp arms closer together, so that the front end of the second clamp arm rests against the left side surface of the left alveolar bone and the first clamp arm drives the clamped membrane staple to the right side of the left alveolar bone. This type of diaphragm clamp has its clamp detachably mounted on the front of the first clamp arm via a threaded connection. The surgeon can remove the original clamp from the front of the first clamp arm and replace it with a clamp of a different model, thus achieving compatibility with different types of diaphragms. However, this also introduces certain risks: when attaching the diaphragm clamp, the front of the first clamp arm applies force to the diaphragm clamp via the clamp, and correspondingly, the diaphragm clamp exerts a reaction force. Considering that the sides of the alveolar bone are usually not vertical but inclined, and considering the slight hand tremors that may occur during the surgeon's operation, the reaction force of the diaphragm clamp on the clamp is often a lateral force biased to one side. Because the clamp is threaded to the first clamp arm, under the influence of this lateral reaction force, the clamp may rotate circumferentially around the first clamp arm, affecting the smooth progress of the surgery. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a diaphragm staple clamp that does not rotate circumferentially under the influence of lateral reaction force.

[0004] To solve the above-mentioned technical problems, the present invention provides a membrane stapler forceps, comprising two clamp arms hinged together in the middle, with an alveolar bone space between the front parts of the two clamp arms for alveolar bone entry, a membrane staple clamp for holding the membrane staple detachably installed at the front end of the first clamp arm, and a gripping part at the rear of the two clamp arms. When the rear parts of the two clamp arms drive the front parts to move closer together, the front end of the second clamp arm rests against the first side surface of the alveolar bone already placed in the alveolar bone space, and the first clamp arm drives the clamped membrane staple to the second side surface of the alveolar bone. The front part of the first clamp arm has a quadrilateral locking groove in the front-back direction, and the membrane staple clamp is correspondingly provided with a quadrilateral locking block that locks into the locking groove and is blocked by the groove wall and cannot rotate around the first clamp arm. The first clamp arm has an axial locking part to lock the membrane staple clamp so that it cannot move back and forth axially, and the middle part of the first clamp arm has an unlocking part for human operation to release the axial lock of the membrane staple clamp.

[0005] Furthermore, the snap-fit ​​groove is provided with a first rack, and the snap-fit ​​block of the membrane clip extends backward with a second rack. When the snap-fit ​​block is fully snapped into the snap-fit ​​groove, the second rack engages with the first rack, thus being blocked by the first rack and unable to move forward axially. The membrane clip body is larger than the snap-fit ​​groove. When the snap-fit ​​block is fully snapped into the snap-fit ​​groove, the front end wall of the first clamp arm presses forward against the membrane clip body to limit it and prevent it from moving backward axially. The first rack and the front end wall of the first clamp arm form the axial locking part. The unlocking part specifically releases the engagement of the first rack and the second rack, thereby releasing the axial locking of the membrane clip.

[0006] Furthermore, the meshing teeth of the first rack are located at its front, and the first rack is hinged in the snap-fit ​​groove. The rear of the snap-fit ​​groove extends rearward to the middle of the first clamp arm, and the rear of the first rack extends to the rear of the snap-fit ​​groove. An operating hole is opened in the middle of the first clamp arm, which is aligned with the rear of the first rack for operation. When the rear of the first rack is rotated by the operator, it drives the meshing teeth at its front to rotate, thereby disengaging it from the second rack.

[0007] Furthermore, both the first and second racks have ratchet teeth. When the meshing teeth of the second rack move backward axially, they push away the meshing teeth of the first rack, causing the front of the first rack to automatically avoid the ratchet. A spring is provided in the locking groove. When the locking block is fully engaged in the locking groove, the spring drives the first rack to reset and engage the second rack, thus preventing the second rack from moving forward axially.

[0008] Furthermore, the first rack has multiple meshing teeth arranged side by side, with the front meshing teeth being longer than the rear meshing teeth. Correspondingly, the second rack also has multiple meshing teeth arranged side by side, with the front meshing teeth being longer than the rear meshing teeth.

[0009] Furthermore, the unlocking part includes a movable block located at the rear of the locking groove. The movable block is larger than the operating hole and is located on the side of the rear of the first rack facing the operating hole. It has an exposed sealing hole extending towards the operating hole. When the movable block is operated, it drives the rear of the first rack to rotate, thereby driving the meshing teeth at the front of the first rack to rotate and disengage from the second ratchet.

[0010] Furthermore, the sealing portion is flush with the outer surface of the middle part of the first clamp arm.

[0011] During installation, the quadrilateral locking block of the diaphragm clip engages rearward in the quadrilateral locking groove at the front end of the first clamp arm. The groove wall prevents rotation around the first clamp arm. The axial locking part of the first clamp arm locks the diaphragm clip, preventing axial movement. The diaphragm clip is thus installed at the front end of the first clamp arm, preventing both circumferential and axial rotation. When attaching the diaphragm staple, the first clamp arm applies force to the staple via the clip. Because the clip cannot rotate around the first clamp arm due to the groove wall, even if the staple applies a lateral reaction force to one side, the clip will not rotate around the first clamp arm under the influence of the lateral reaction force. Since the unlocking part is located in the middle of the first clamp arm, doctors primarily hold the gripping part of the first clamp arm (the rear part) when attaching the staple, generally avoiding contact with the middle part and thus minimizing the risk of accidentally activating the unlocking part. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the diaphragm fixation forceps, drawn using a magnified view.

[0013] Figure 2 This is a schematic diagram of a membrane staple clamp holding a membrane staple.

[0014] Figure 3 This is a schematic diagram of a diaphragm screw being attached to the alveolar bone using diaphragm screw clamps.

[0015] Figure 4 It is an exploded view of the first clamp arm, the diaphragm clamp, the first rack, the movable block, the spring, and the baffle of the diaphragm clamp. Only the front and middle parts of the first clamp arm are shown in the figure.

[0016] Figure 5 This is a schematic diagram of the first clamp arm. The first clamp arm in the diagram is along... Figure 3 Half of the middle AA line was cut off.

[0017] Figure 6 This is a schematic diagram of a suture clamp. The first clamp arm in the diagram is along... Figure 3 Half of the middle AA line was cut off.

[0018] Figure 7 yes Figure 3 The figure shows a cross-sectional view (AA) where the first rack meshes with the second rack.

[0019] Figure 8 This is a cross-sectional view of the membrane staple clip inserted into the snap-fit ​​slot with the back facing out.

[0020] Figure 9 This is a cross-sectional view showing the second rack pushing against the first rack, causing the front of the first rack to face upwards to avoid it.

[0021] Figure 10 This is a cross-sectional view showing the moving block pushing down the first rack, with the first rack disengaged from the second rack. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to specific embodiments.

[0023] Membrane stapler seen Figure 1 The device includes two clamp arms, 1 and 2, with their middle sections 12 and 22 crossing and hinged together. The front part 11 of the first clamp arm 1 is positioned to the right, while the front part 21 of the second clamp arm 2 is positioned to the left. An alveolar bone space 3 is left between the front parts 11 and 21 of the two clamp arms 1 and 2. A membrane clip 5 is detachably mounted on the front end 110 of the first clamp arm 1, and a silicone sheet 6 facing right toward the first clamp arm 1 is mounted on the front end 210 of the second clamp arm 2. The membrane clip 5 extends to the left with four circumferentially distributed elastic clips 511. See [link to product description]. Figure 2 Four elastic clips 511 can jointly hold the diaphragm staple 4, which is the same as the way existing diaphragm staple guns hold diaphragm staples and is existing technology, so it will not be described in detail. The doctor inserts a thin, long object into the gap 512 between adjacent elastic clips 511, presses the diaphragm staple 4 to the left, and then moves the diaphragm staple clamp 5 to the right, thus releasing the clamp on the diaphragm staple 4 and allowing the diaphragm staple clamp 5 to separate from the diaphragm staple 4. This is the same as the way existing diaphragm staple guns release clamps and is existing technology, so it will not be described in detail. See Figure 1 The rear parts of the two clamp arms 1 and 2, 13 and 23, are the gripping parts.

[0024] See Figure 1 and Figure 3 When a dentist needs to attach a membrane staple 4 to the alveolar bone 7, for example, when a dentist needs to attach a membrane staple 4 to the right side 711 of the left alveolar bone 7:

[0025] First, clamp the membrane nail 4 with the membrane nail clamp 5. Then, hold the rear parts 13 and 23 of the two clamp arms 1 and 2, and extend the front parts 11 and 21 of the two clamp arms 1 and 2 from back to front into the left side of the patient's mouth, allowing the left part of the alveolar bone 7 to enter the alveolar bone position 3. Then, manipulate the rear parts 13 and 23 of the two clamp arms 1 and 2 to bring the front parts 11 and 21 of the two clamp arms 1 and 2 closer together, so that the silicone sheet 6 at the front end 210 of the second clamp arm 2 rests against the left side surface 712 of the left part of the alveolar bone 7, and the first clamp arm 1 drives the clamped membrane nail 4 to the right side surface 711 of the left part of the alveolar bone 7. Finally, release the membrane nail clamp 5 from the membrane nail 4, and extend the membrane nail clamp backward out of the patient's mouth to complete the operation of attaching the membrane nail 4.

[0026] See Figure 5 and Figure 6 The first clamp arm 1 has a longitudinally extending locking groove 15 at its front part 11. The locking groove 15 has a quadrilateral cross-section. The front part 151 of the locking groove 15 extends forward to the front end wall 111 of the first clamp arm 1, and the rear part 153 extends backward to the middle part 12 of the first clamp arm 1. A first rack 8 is provided inside the locking groove 15. The front part 81 of the first rack 8 has meshing teeth 811, the middle part 82 is hinged to the groove wall 1521 of the middle part 152 of the locking groove 15, and the rear part 83 extends to the rear part 153 of the locking groove 15. An operating hole 122 is provided on the upper surface 121 of the middle part 12 of the first clamp arm 1, facing downward and aligned with the rear part 83 of the first rack 8. A movable block 9 is provided at the rear part 153 of the locking groove 15. The movable block 9 is larger than the operating hole 122 and is located above the rear part 83 of the first rack 8. The side wall of the rear portion 153 of the snap-fit ​​groove 15 is provided with a guide structure 16 consisting of two vertical guide blocks 161. A guide groove 162 is left between the two vertical guide blocks 161. The movable block 9 extends laterally into the guide groove 162 and is guided by the guide structure 16, and can only move vertically along the guide structure 16. The movable block 9 has a sealing hole 91 extending upward, which is flush with the upper surface 121 of the middle portion 12 of the first clamp arm 1 and will not protrude outward, that is, it will not affect the doctor's operation. A spring 10 is sandwiched between the bottom wall 17 of the rear portion 153 of the snap-fit ​​groove 15 and the rear portion 83 of the first rack 8. See Figure 4 and Figure 6 The membrane staple clip 5 body 51 is larger than the snap-fit ​​groove 15, and a snap-fit ​​block 52 extends backward from it. The snap-fit ​​block 52 has a quadrilateral cross-section and is adapted to the snap-fit ​​groove 15, that is, the cross-sections of the two are the same in shape and size. A second rack 53 extends backward from the snap-fit ​​block 52. The meshing teeth 531 and 811 of the second rack 53 and the first rack 8 are mutually adapted ratchet teeth. Among them, the first rack 8 has multiple meshing teeth 811 arranged in parallel front and back, and the front meshing teeth 811 are longer than the rear meshing teeth 811. Correspondingly, the second rack 53 also has multiple meshing teeth 531 arranged in parallel front and back, and the front meshing teeth 531 are longer than the rear meshing teeth 531.

[0027] When the doctor was installing the membrane clip 5, he saw Figure 8 Align the snap-fit ​​block 52 and the second rack 53 at the rear end of the membrane staple clamp 5 with the snap-fit ​​groove 15, and then move the membrane staple clamp 5 backward so that the second rack 53 and the snap-fit ​​block 52 enter the snap-fit ​​groove 15 one after the other. During this process:

[0028] See Figure 9 The meshing teeth 531 of the second rack 53 move axially backward, contacting and pushing the meshing teeth 811 of the first rack 8 upward, thus pushing the meshing teeth 811 of the first rack 8 upward, thereby causing the front part 81 of the first rack 8 to automatically rotate upward to avoid it and driving the rear part 83 of the first rack 8 (see...) Figure 7 Rotate downwards to compress spring 10 (see) Figure 7 The locking block 52 is inserted rearward into the locking groove 15, and is prevented from rotating circumferentially around the first clamp arm 1 by the obstruction of the groove wall 15. See Figure 7 When the snap-fit ​​block 52 is fully engaged in the snap-fit ​​groove 15, the meshing teeth 531 of the second rack 53 are offset from the meshing teeth 811 of the first rack 8, thus no longer pushing the meshing teeth 811 of the first rack 8 upwards. Then, the rear part 83 of the first rack 8 rotates upwards and resets under the drive of the spring 10, causing the meshing teeth 811 of the front part 81 of the first rack 8 to rotate downwards and reset, engaging the meshing teeth 531 of the second rack 53. In this state: the meshing teeth 811 of the first rack 8 block the second rack 53 of the diaphragm clip 5, preventing it from moving forward axially; the front end wall 111 of the first clamp arm 1 presses forward against the body 51 of the diaphragm clip 5, limiting its movement and preventing it from moving backward axially. The first rack 8 and the front end wall 111 of the first clamp arm 1 together form an axial locking part, axially locking the diaphragm clip 5. The diaphragm clip 5 is thus detachably installed to the front end 110 of the first clamp arm 1, preventing both circumferential rotation and axial movement.

[0029] See Figure 3 and Figure 7 When the membrane staple 4 is attached, the first clamp arm 1 applies force to the membrane staple 4 via the membrane staple clamp 5. Since the snap block 52 of the membrane staple clamp 5 is blocked by the groove wall of the snap groove 15 and cannot rotate around the first clamp arm 1, even if the membrane staple 4 applies a lateral reaction force biased to one side to the membrane staple clamp 5, the membrane staple clamp 5 will not rotate around the first clamp arm 1 under the action of the lateral reaction force.

[0030] See Figure 7 Because the membrane staple clip 5 is detachably mounted on the front part 11 of the first clamp arm 1, the doctor can remove the original membrane staple clip 5 from the front part 11 of the first clamp arm 1 and replace it with a membrane staple clip 5 of another model, thus achieving compatibility with different models of membrane staples 4. The movable block 9 serves as the unlocking part. When the doctor removes the membrane staple clip 5: see Figure 10 Push the sealing part 91 of the movable block 9 downwards with a sharp object, causing the movable block 9 to move downwards and push the rear part 83 of the first rack 8. This causes the rear part 83 of the first rack 8 to rotate downwards and compress the spring 10. The rear part 83 of the first rack 8 then causes the meshing teeth 811 of the front part 81 of the first rack 8 to rotate upwards, releasing the meshing with the second rack 53 and thus releasing the axial lock on the membrane staple clip 5. Then, allow the membrane staple clip 5 to move forward until the locking block 52 and the first rack 8 are successively dislodged from the locking groove 15. Figure 8 This removes the membrane staple clamp 5 from the first clamp arm 1.

[0031] See Figure 1The movable block 9 serves as the unlocking part and is located in the middle part 12 of the first clamp arm 1. When the doctor is attaching the membrane staple 4, he mainly holds the gripping part of the first clamp arm 1, that is, the rear part 13 of the first clamp arm 1. He generally does not touch the middle part 12 of the first clamp arm 1, which means that it is not easy to accidentally touch the unlocking part.

[0032] See Figure 1 and Figure 7 The two ends 881 of the hinge shaft 88 of the first rack 8 are laterally exposed. The bottom of the rear part 153 of the locking groove 15 has an inlet / outlet 1531. A baffle 156 is detachably installed at the inlet / outlet 1531 by bolts 157. The baffle 156 serves as the bottom wall 17 of the rear part 153 of the locking groove 15, blocking the inlet / outlet 1531. When the doctor needs to clean and disinfect the inside of the first rack 8, the movable block 9, and the locking groove 15: see... Figure 4 and Figure 6 First, use a sharp object to push the hinge shaft 88 of the first rack 8 laterally, thus disengaging the hinge of the first rack 8 and allowing it to be removed from the locking groove 15; see Figure 4 and Figure 7 Then, after removing the baffle 156, the spring 10 and the movable block 9 can be taken out from the item inlet / outlet 1531. Then, the first rack 8, the movable block 9 and the inside of the snap-fit ​​groove 15 can be cleaned.

[0033] See Figure 10 In this embodiment, the doctor pushes the rear part 83 of the first rack 8 downward by pushing the movable block 9, that is, indirectly operates the rear part 83 of the first rack 8 by operating the movable block 9. In other embodiments, the movable block 9 can be omitted, and when the membrane staple clip 5 needs to be removed, the doctor can directly insert a sharp object into the rear part 153 of the snap-fit ​​groove 15 through the operating hole 122 and push the rear part 83 of the first rack 8 downward.

[0034] 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 membrane staple clamp, comprising two clamp arms hinged together at the middle, with an alveolar bone space between the front parts of the two clamp arms for alveolar bone entry, a membrane staple clamp for holding a membrane staple detachably mounted on the front end of the first clamp arm, and a gripping part at the rear end of the two clamp arms. When the rear parts of the two clamp arms move their front parts closer together, the front end of the second clamp arm rests against the first side surface of the alveolar bone already placed in the alveolar bone space, and the first clamp arm drives the clamped membrane staple to be stapled onto the second side surface of the alveolar bone, characterized in that: The front of the first clamp arm has a quadrilateral locking groove in the front-back direction. The membrane staple clamp is provided with a quadrilateral locking block that is inserted into the locking groove and blocked by the groove wall, preventing it from rotating around the first clamp arm. The first clamp arm is provided with an axial locking part to lock the membrane staple clamp so that it cannot move forward or backward axially. The middle of the first clamp arm is provided with an unlocking part for operation to release the axial lock on the membrane staple clamp.

2. The membrane fixation clamp according to claim 1, characterized in that: The snap-fit ​​groove is provided with a first rack, and the snap-fit ​​block of the membrane clip extends backward with a second rack. When the snap-fit ​​block is fully snapped into the snap-fit ​​groove, the second rack engages with the first rack and is thus blocked from moving forward axially. The membrane clip body is larger than the snap-fit ​​groove. When the snap-fit ​​block is fully snapped into the snap-fit ​​groove, the front end wall of the first clamp arm presses against the membrane clip body to limit it and prevent it from moving backward axially. The first rack and the front end wall of the first clamp arm form the axial locking part. The unlocking part specifically releases the engagement of the first rack and the second rack, thereby releasing the axial locking of the membrane clip.

3. The membrane fixation clamp according to claim 2, characterized in that: The meshing teeth of the first rack are located at its front. The first rack is hinged in the snap-fit ​​groove. The rear part of the snap-fit ​​groove extends backward to the middle of the first clamp arm. The rear part of the first rack extends to the rear part of the snap-fit ​​groove. An operating hole is opened in the middle of the first clamp arm, which is aligned with the rear part of the first rack for operation. When the rear part of the first rack is rotated by operation, it drives the meshing teeth at its front to rotate, thereby disengaging it from the second rack.

4. The membrane fixation clamp according to claim 3, characterized in that: Both the first and second racks have ratchet teeth. When the second rack moves backward axially, it pushes away the first rack's teeth, causing the front of the first rack to automatically avoid movement. A spring is provided in the locking groove. When the locking block is fully engaged in the locking groove, the spring drives the first rack to reset and engage the second rack, thus preventing the second rack from moving forward axially.

5. The membrane fixation clamp according to claim 3, characterized in that: The first rack has multiple meshing teeth arranged side by side, with the front meshing teeth being longer than the rear meshing teeth. Correspondingly, the second rack also has multiple meshing teeth arranged side by side, with the front meshing teeth being longer than the rear meshing teeth.

6. The membrane fixation clamp according to claim 3, characterized in that: The unlocking part includes a movable block located at the rear of the locking groove. The movable block is larger than the operating hole and is located on the side of the rear of the first rack facing the operating hole. It has an exposed sealing hole extending towards the operating hole. When the movable block is operated, it drives the rear of the first rack to rotate, thereby driving the meshing teeth at the front of the first rack to rotate and disengage from the second ratchet.

7. The membrane fixation clamp according to claim 6, characterized in that: The sealing part is flush with the outer surface of the middle part of the first clamp arm.

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