Auxiliary instrument with bionic structure for nasal plastic surgery

Abstract

The utility model discloses an auxiliary instrument for nasal plastic surgery with a bionic structure. The auxiliary instrument comprises a connecting rod, a replacing mechanism and a connecting seat. The replacing mechanism comprises a connecting block, the connecting block is fixedly installed at one end of the connecting rod, a second groove is formed in the connecting block, a movable plate is arranged in the second groove in a sliding mode, a spring is fixedly connected to one side of the movable plate, the end, away from the movable plate, of the spring penetrates through the connecting block and is fixedly connected with a fixed block, and the fixed block is fixedly installed on the connecting block. A first groove is formed in the connecting base, a protruding block is fixedly connected to the side, away from the spring, of the movable plate, the protruding block is inserted into the first groove, and a digging piece is fixedly installed on the connecting base. A driving piece for driving the movable plate to move towards one side of the spring is arranged on the other side of the movable plate, the driving piece penetrates through and extends out of the connecting block, and a pressing part is arranged at the end, away from the movable plate, of the driving piece.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to an auxiliary instrument for rhinoplasty with a bionic structure. Background Art

[0002] Rhinoplasty is a common cosmetic procedure that improves facial appearance by changing the shape of the nose. Existing patent CN 216148113U discloses a bionic rhinoplasty auxiliary device, comprising a connecting rod, a replacement mechanism, and a connecting plate. The replacement mechanism comprises a connecting block and a curved baffle. The connecting block is fixedly mounted on one end of the connecting rod, and a second groove is defined within the connecting block. The inner sidewall of the second groove is rotatably connected to a movable plate. A spring is fixedly connected to one side of the movable plate. The end of the spring, away from the movable plate, passes through the connecting block and is fixedly connected to a fixed block. The fixed block is fixedly mounted on the connecting block, and a bolt is threadedly connected to the internal thread of the connecting block. The side of the connecting block, away from the connecting rod, is fixedly connected to the curved baffle. The connecting plate is tightly attached to one side of the curved baffle, and a first groove is defined on the side of the connecting plate, away from the curved baffle. A protrusion is fixedly connected to the side of the movable plate, away from the spring, and the protrusion is inserted into the first groove. A pick is fixedly mounted on the connecting plate.

[0003] The spring's compressive force snaps the movable plate's protrusion into the first groove of the connecting plate, and the connecting plate is held in place by the curved baffle and the protrusion. However, during testing, the applicant discovered a defect in connection stability: because the protrusion only elastically limits one side of the connecting plate, when the connecting plate or the pick is subjected to a lateral external force, if the external force exceeds the spring's compressive force on the movable plate toward the connecting plate, the connecting plate swings relative to its bottom, pushing the movable plate toward the spring, causing the protrusion of the movable plate to disengage from the first groove. This poses a risk of the connecting plate falling off the curved baffle, which is extremely detrimental during surgery. Therefore, the structure needs to be improved to meet clinical application requirements. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary instrument for bionic structure rhinoplasty, which can improve the connection stability between the pick and the connecting rod during the operation and simplify the replacement process of the pick, thereby improving the safety of the operation and the convenience of operation.

[0005] The technical solution adopted by the present utility model to solve the above problems is: an auxiliary instrument for bionic structure nasal plastic surgery, including a connecting rod, a replacement mechanism and a connecting seat. The replacement mechanism includes a connecting block, the connecting block is fixedly installed at one end of the connecting rod, the connecting block is provided with a second groove, a movable plate is slidably arranged in the second groove, one side of the movable plate is fixedly connected with a spring, and the end of the spring away from the movable plate penetrates through the connecting block and is fixedly connected with a fixed block, and the fixed block is fixedly installed on the connecting block; the connecting seat is provided with a first groove, the side of the movable plate away from the spring is fixedly connected with a convex block, the convex block is inserted into the first groove, and a scraping piece is fixedly installed on the connecting seat; the outer contour of the lower end of the connecting seat is fitted with the inner contour of the connecting block, and the other side of the movable plate is provided with a driving member for driving it to move towards the spring side, and the driving member penetrates through and extends out of the connecting block and the end away from the movable plate is provided with a pressing part.

[0006] Preferably: Two limiting baffles are symmetrically arranged in the second groove, the two side edges of the movable plate are respectively in contact with a limiting baffle, and the sliding area of the movable plate is located between the two limiting baffles.

[0007] Preferably: Two mounting plates are symmetrically and fixedly connected to the lower end of the connecting seat, and the mounting plates are inserted between the limiting baffle and the inner side wall of the connecting block.

[0008] Preferably: The side of the connecting seat close to the scraping piece is provided with an arc-shaped contour transition.

[0009] Preferably: A through groove capable of allowing the spring to expand and contract and move inside is opened inside the connecting block, and one side of the fixed block is inserted into the through groove and can support the spring.

[0010] Preferably: A handle is fixedly connected to the end of the connecting rod away from the connecting block.

[0011] Preferably: Two arc-shaped grooves are symmetrically opened on the handle.

[0012] Preferably: The arc-shaped grooves are provided with a plurality of anti-slip strip-shaped convex structures.

[0013] Compared with the prior art, the present utility model has the following advantages and effects:

[0014] The outer contour of the lower end of the connecting seat of the present utility model and the inner contour of the connecting block are both circular. After the connecting seat fixedly connected with the pick pieces of corresponding sizes is installed on the connecting rod through the replacement mechanism, the lower end of the connecting seat is inserted into the connecting block and is slidably connected and adapted to the connecting block, and the circumferential direction of the connecting seat is limited by the connecting block. The outer contour of the convex block is adapted to the first groove. After the convex block is inserted into the first groove, it restricts the connecting block from rotating around the central axis of the connecting rod and moving along the central axis direction. Compared with the prior art, the installation of the connecting seat is more stable, which can effectively reduce the possibility of the connecting seat falling off during the rhinoplasty operation and ensure the safety of using the cutting device to cut the nose after the nasal cavity is opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic structural diagram of the bionic structure auxiliary instrument for rhinoplasty according to an embodiment of the present utility model.

[0016] Figure 2 is an embodiment of the present utility model Figure 1 Enlarged schematic view of area A in.

[0017] Figure 3 FIG. is a schematic structural diagram of the replacement mechanism according to an embodiment of the present utility model.

[0018] Figure 4 FIG. is a schematic internal structure diagram of the replacement mechanism according to an embodiment of the present utility model.

[0019] Figure 5 FIG. is a schematic structural diagram of the connecting seat according to an embodiment of the present utility model.

[0020] Figure 6 is an embodiment of the present utility model Figure 1 Schematic view of the handle structure in area B in.

[0021] Reference numerals in the drawings: connecting rod 1, handle 11, arc groove 12, convex structure 13, replacement mechanism 2, connecting block 21, second groove 211, movable plate 22, convex block 221, spring 23, fixed block 24, driving member 25, pressing portion 26, limit baffle 27, connecting seat 3, first groove 31, pick piece 32, mounting plate 33, arc contour 34. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described in detail below with reference to the drawings and through embodiments. The following embodiments are explanations of the present utility model and the present utility model is not limited to the following embodiments.

[0023] Embodiment:

[0024] See Figure 1 - Figure 5, in this embodiment, a bionic structure nasal plastic auxiliary instrument is involved, which is specifically used to improve the connection stability between the stripping piece 32 and the connecting rod 1 during the nasal plastic surgery. Specifically, it includes: a connecting rod 1, a replacement mechanism 2 and a connecting seat 3. The replacement mechanism 2 includes a connecting block 21. The connecting block 21 is fixedly installed at one end of the connecting rod 1. The connecting block 21 is provided with a second groove 211. A movable plate 22 is slidably arranged in the second groove 211. One side of the movable plate 22 is fixedly connected with a spring 23. The end of the spring 23 away from the movable plate 22 penetrates through the connecting block 21 and is fixedly connected with a fixed block 24. The fixed block 24 is fixedly installed on the connecting block 21. The connecting seat 3 is provided with a first groove 31. The side of the movable plate 22 away from the spring 23 is fixedly connected with a convex block 221. The convex block 221 is inserted into the first groove 31. A stripping piece 32 is fixedly installed on the connecting seat 3. The outer contour of the lower end of the connecting seat 3 is fitted with the inner contour of the connecting block 21. The other side of the movable plate 22 is provided with a driving member 25 for driving it to move towards the spring 23 side. The driving member 25 penetrates through and extends out of the connecting block 21, and the end of the driving member 25 away from the movable plate 22 is provided with a pressing part 26.

[0025] Specifically, in this embodiment, the replacement and installation of the scraping piece 32 are relatively convenient. Press the connecting seat 3 downward against the connecting block 21. During the downward pressing process, the plane below the first groove 31 of the connecting seat 3 pushes the convex block 221 of the movable plate 22 away, causing the spring 23 to contract after being compressed. When the connecting seat 3 continues to be pressed downward, the first groove 31 aligns with the convex block 221. Under the elastic force of the spring 23, the movable plate 22 is pushed to move away from the spring 23, so that the convex block 221 is inserted into the first groove 31, thereby realizing the fixed installation of the connecting seat 3 and the replacement mechanism 2. The outer contour of the lower end of the connecting seat 3 and the inner contour of the connecting block 21 are both circular. After the connecting seat 3 fixedly connected with the scraping piece 32 of the corresponding size is installed on the connecting rod 1 through the replacement mechanism 2, the lower end of the connecting seat 3 is inserted into the connecting block 21 and is slidably connected and adapted to the connecting block 21. The circumferential direction of the connecting seat 3 is restricted by the connecting block 21. In this embodiment, the outer contour of the convex block 221 is adapted to the first groove 31. After the convex block 221 is inserted into the first groove 31, it restricts the connecting block 21 from rotating around the central axis of the connecting rod 1 and moving along the central axis direction. Compared with the prior art, the installation of the connecting seat 3 is more stable, which can effectively reduce the possibility of the connecting seat 3 falling off during the nasal plastic surgery and ensure the safety of using the cutting device to cut the nose after the nasal cavity is opened. In addition, after use, the connecting seat 3 needs to be removed from the replacement mechanism 2. The pressing part 26 of the present utility model is used to manually drive the movable plate 22 to move. By pressing the pressing part 26, the driving part 25 overcomes the elastic force of the spring 23, squeezes the movable plate 22 against the spring 23 and moves it toward the spring 23, so that the convex block 221 on the movable plate 22 disengages from the first groove 31. At this time, the connecting seat 3 can be removed from the replacement mechanism 2, realizing the convenient disassembly and replacement of the connecting seat 3.

[0026] See Figure 3 [[ID=�?]]And Figure 4, two limiting baffles 27 are symmetrically arranged in the second groove 211. The two side edges of the movable plate 22 are respectively in contact with one limiting baffle 27. The sliding area of the movable plate 22 is located between the two limiting baffles 27. In this embodiment, the driving member 25 is slidably arranged on the side wall of the connecting block 21 and has a cylindrical structure. Through the arrangement of the limiting baffles 27, the movable plate 22 can stably move along the direction of the limiting baffles 27 during the process of being pushed by the connecting seat 3, effectively avoiding the situation that the movable plate 22 deflects during movement, resulting in the bump 221 not being aligned with the first groove 31, and making the installation of the connecting seat 3 smoother. The lower part of the movable plate 22 adopts a circular contour, reducing the contact area between the movable plate 22 and the limiting baffle 27 and the bottom of the second groove 211, effectively reducing the wear of the movable plate 22. In addition, when installing the connecting seat 3, the movable plate 22 is located in the second groove 211, and the connecting seat 3 and the replacement part form a closed cavity, so that the movement of the movable plate 22, the spring 23, and the driving rod is restricted within this closed cavity, playing a protective role for these components, thereby improving the service life of the replacement structure.

[0027] See Figure 5 , two mounting plates 33 are symmetrically and fixedly connected to the lower end of the connecting seat 3. The mounting plates 33 are inserted between the limiting baffle 27 and the inner side wall of the connecting block 21. When installing, the mounting plates 33 of the connecting seat 3 and the limiting baffle 27 of the connecting block 21 need to be aligned one by one and then inserted and matched, further improving the stability of the connecting seat 3. In this embodiment, the two mounting plates 33 and the corresponding two limiting baffles 27 are biased towards the side where the first groove 31 (fixedly connected with the scraping piece 32) is opened on the connecting seat 3, which can effectively prevent the connecting seat 3 from being installed in the reverse direction.

[0028] An arc-shaped contour 34 transition is provided on the side of the connecting seat 3 close to the scraping piece 32. The design of the arc-shaped contour 34 transition can reduce local stress concentration during the connection process, reduce the risk of damage to the connecting seat 3 and the connecting block 21 due to external forces during use. At the same time, the arc-shaped contour 34 transition can also make the installation and holding smoother, reduce dead corners, and be easy to clean and maintain. A through groove is opened inside the connecting block 21 to enable the spring 23 to perform telescopic movement inside it. One side of the fixed block 24 is inserted into the through groove and can support the spring 23, so that after the movable plate 22 is extruded by the movable plate 22, it can drive the spring 23 to contract inside the connecting block 21.

[0029] See Figure 6 , one end of the connecting rod 1 far from the connecting block 21 is fixedly connected with a handle 11, making it more convenient for medical staff to use this device. Two arc-shaped grooves 12 are symmetrically opened on the handle 11, and a number of anti-slip strip-shaped protrusion structures 13 are arranged on the arc-shaped grooves 12 to improve the comfort and stability of the handle 11 when being held.

[0030] The above content described in this specification is only an example of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications or supplements to the specific embodiments described, or use similar ways to replace them, as long as they do not deviate from the content of this specification of the present utility model or exceed the scope defined by this claims, they shall fall within the protection scope of the present utility model.

Claims

1. An auxiliary instrument for bionic structure rhinoplasty, comprising a connecting rod, a replacement mechanism and a connecting seat. The replacement mechanism includes a connecting block. The connecting block is fixedly installed at one end of the connecting rod. The connecting block is provided with a second groove. An activity plate is slidably arranged in the second groove. One side of the activity plate is fixedly connected with a spring. The end of the spring far away from the activity plate penetrates through the connecting block and is fixedly connected with a fixed block. The fixed block is fixedly installed on the connecting block. The connecting seat is provided with a first groove. The side of the activity plate far away from the spring is fixedly connected with a convex block. The convex block is inserted into the first groove. A pick is fixedly installed on the connecting seat. It is characterized in that: The outer contour of the lower end of the connecting seat fits with the inner contour of the connecting block. The other side of the activity plate is provided with a driving part for driving it to move towards the spring side. The driving part penetrates through and extends out of the connecting block, and the end of the driving part far away from the activity plate is provided with a pressing part. Two limiting baffles are symmetrically arranged in the second groove. The two side edges of the activity plate are respectively in contact with one limiting baffle. The sliding area of the activity plate is between the two limiting baffles. Two mounting plates are symmetrically and fixedly connected to the lower end of the connecting seat. The mounting plates are inserted between the limiting baffle and the inner side wall of the connecting block. An arc-shaped contour transition is provided on one side of the connecting seat close to the pick. A through groove capable of enabling the spring to perform telescopic movement therein is opened inside the connecting block. One side of the fixed block is inserted into the through groove and can support the spring.

2. The auxiliary instrument for bionic structure rhinoplasty according to claim 1, characterized in that: A handle is fixedly connected to the end of the connecting rod far away from the connecting block.

3. The auxiliary instrument for bionic structure rhinoplasty according to claim 2, characterized in that: Two arc-shaped grooves are symmetrically opened on the handle.

4. The auxiliary instrument for bionic structure rhinoplasty according to claim 3, characterized in that: A plurality of anti-slip strip-shaped protrusion structures are arranged on the arc-shaped groove.

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