An auxiliary cutting device for costal cartilage bevels

Abstract

The utility model discloses a kind of rib cartilage bevel's auxiliary cutting device, it is related to rib cartilage cutting field, including upper clamping plate and lower clamping plate, upper clamping plate includes connecting plate and moving plate, connecting plate is assembled on lower clamping plate, connecting plate has the freedom of movement along the axial movement of lower clamping plate, moving plate is slidably arranged at the bottom of connecting plate, moving plate has the freedom of movement along the length direction of lower clamping plate, moving plate and lower clamping plate form rib cartilage clamping space between, moving plate and lower clamping plate are staggered arrangement along the length direction of lower clamping plate, for forming inclined cutting surface. Rib cartilage is clamped between moving plate and lower clamping plate, adjust the position of moving plate, make moving plate and lower clamping plate staggered arrangement along the length direction of lower clamping plate, to form cutting angle, blade is cut with the end of lower clamping plate and the end of moving plate, to cut out ramp quickly.

Description

Technical Field

[0001] This utility model relates to the field of costal cartilage cutting, specifically an auxiliary cutting device for the oblique surface of costal cartilage. Background Technology

[0002] Rhinoplasty, or nose reshaping surgery, involves implanting appropriate materials to alter the height and shape of the nose, harmonizing it with other facial features. It is one of the most common procedures in plastic surgery. Medically, there are many types of materials used in rhinoplasty, such as medical-grade silicone rubber, autologous cartilage, animal tendons or ligaments, expanded polytetrafluoroethylene (ePTFE), and hyaluronic acid. There are also various methods for preparing nasal implants. Among them, autologous cartilage, because it originates from the patient's own body, does not cause rejection and has become the mainstream implant material. Since rib cartilage needs to be inserted longitudinally into the implantation site, the implantation end of the rib cartilage cannot have sharp edges and needs to be cut into a bevel to facilitate implantation. Currently, there are no devices to assist in bevel cutting of rib cartilage; doctors directly cut the rib cartilage during the process. This requires multiple adjustments to the cutting surface to achieve the desired shape, resulting in low efficiency and the possibility of excessive cutting leading to scrap. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an auxiliary cutting device for the oblique surface of costal cartilage to solve the shortcomings of the prior art.

[0004] The purpose of this utility model is achieved through the following technical solution: an auxiliary cutting device for the oblique surface of costal cartilage, comprising an upper clamping plate and a lower clamping plate, wherein the upper clamping plate includes a connecting plate and a movable plate, the connecting plate is mounted on the lower clamping plate, the connecting plate has a degree of freedom to move along the axial direction of the lower clamping plate, the movable plate is slidably disposed at the bottom of the connecting plate, the movable plate has a degree of freedom to move along the length direction of the lower clamping plate, a costal cartilage clamping space is formed between the movable plate and the lower clamping plate, and the movable plate and the lower clamping plate are staggered along the length direction of the lower clamping plate to form an inclined cutting surface.

[0005] Furthermore, a screw is rotatably mounted on the top of the lower clamping plate, and the connecting plate is threaded onto the screw. A guide rod is provided between the lower clamping plate and the connecting plate, with one end of the guide rod fixedly connected to the lower clamping plate and the other end slidingly passing through the connecting plate.

[0006] Furthermore, a knob is provided at the bottom of the lower clamping plate, and the end of the screw away from the connecting plate is fixedly connected to the knob.

[0007] Furthermore, a moving shaft is vertically fixed to the top of the moving plate, and a strip groove is formed through the connecting plate, with the moving shaft slidingly adapted to the strip groove.

[0008] Furthermore, a fastening cap is provided above the connecting plate, and a threaded hole is provided at the bottom of the fastening cap. The end of the moving shaft away from the moving plate is threaded into the threaded hole.

[0009] Furthermore, an elastic ring is fixed to the bottom of the fastening cap, the elastic ring is coaxial with the threaded hole, and the fastening cap presses the elastic ring against the connecting plate.

[0010] The beneficial effects of this utility model are:

[0011] The rib cartilage is clamped between the moving plate and the lower clamp. The position of the moving plate is adjusted so that the moving plate and the lower clamp are staggered along the length of the lower clamp, thus forming a cutting angle. The blade cuts by fitting against the end of the lower clamp and the end of the moving plate, thereby quickly cutting out a slope. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an auxiliary cutting device for the rib cartilage bevel according to the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of an auxiliary cutting device for the rib cartilage bevel according to the present invention.

[0014] In the diagram, 1-upper clamping plate, 2-lower clamping plate, 3-connecting plate, 4-moving plate, 5-screw, 6-guide rod, 7-knob, 8-moving shaft, 9-strip groove, 10-fastening cap, 11-threaded hole, 12-elastic ring. Detailed Implementation

[0015] Example 1

[0016] like Figure 1 and Figure 2As shown, an auxiliary cutting device for the oblique surface of costal cartilage includes an upper clamping plate 1 and a lower clamping plate 2. The upper clamping plate 1 includes a connecting plate 3 and a movable plate 4. The connecting plate 3 is mounted on the lower clamping plate 2 and has a degree of freedom to move axially along the lower clamping plate 2. The movable plate 4 is slidably disposed at the bottom of the connecting plate 3 and has a degree of freedom to move along the length direction of the lower clamping plate 2. A costal cartilage clamping space is formed between the movable plate 4 and the lower clamping plate 2. The movable plate 4 and the lower clamping plate 2 are staggered along the length direction of the lower clamping plate 2 to form an oblique cutting surface. The distance between the movable plate 4 and the lower clamping plate 2 is adjusted by moving the connecting plate 3 so that the distance between the movable plate 4 and the lower clamping plate 2 is greater than the thickness of the costal cartilage, facilitating the clamping and installation of the costal cartilage. Then, the distance is adjusted... The position of the movable plate 4 is adjusted so that it is staggered with the lower clamping plate 2 along its length. The costal cartilage is placed between the lower clamping plate 2 and the movable plate 4, with one end of the costal cartilage flush with the end of the lower clamping plate 2 away from the connecting plate 3. Then, the connecting plate 3 moves the movable plate 4 closer to the lower clamping plate 2, clamping the costal cartilage through the lower clamping plate 2 and the movable plate 4. This creates a cutting angle between the end of the movable plate 4 and the end of the lower clamping plate 2. The cutting blade simultaneously contacts the end of the movable plate 4 away from the connecting plate 3 and the end of the lower clamping plate 2 away from the connecting plate 3, thus guiding the cutting direction of the cutting blade and quickly cutting a bevel on the costal cartilage without repeated bevel adjustments, improving the processing efficiency and effect of the costal cartilage. Figure 1 As shown, A is the cutting bevel, and B is the costal cartilage.

[0017] Example 2

[0018] Based on Example 1, such as Figure 1 As shown, a screw 5 is rotatably mounted on the top of the lower clamping plate 2, and a connecting plate 3 is threaded onto the screw 5. A guide rod 6 is provided between the lower clamping plate 2 and the connecting plate 3. One end of the guide rod 6 is fixedly connected to the lower clamping plate 2, and the other end slides through the connecting plate 3. A knob 7 is provided at the bottom of the lower clamping plate 2. The end of the screw 5 away from the connecting plate 3 is fixedly connected to the knob 7. By rotating the knob 7, the screw 5 is driven to rotate. The rotational freedom of the connecting plate 3 is restricted by the guide rod 6, so that the connecting plate 3 moves linearly along the axis of the screw 5. This causes the connecting plate 3 to move the moving plate 4 closer to or away from the lower clamping plate 2, thus completing the tooling for the rib cartilage.

[0019] Example 3

[0020] Based on Example 2, such as Figure 1 and Figure 2As shown, a movable shaft 8 is vertically fixed to the top of the movable plate 4. A slotted groove 9 is formed through the connecting plate 3, and the movable shaft 8 slides into the slotted groove 9. A fastening cap 10 is provided above the connecting plate 3, and a threaded hole 11 is formed at the bottom of the fastening cap 10. The end of the movable shaft 8 away from the movable plate 4 is threaded into the threaded hole 11. An elastic ring 12 is fixed to the bottom of the fastening cap 10, and the elastic ring 12 is coaxial with the threaded hole 11. The fastening cap 10 presses the elastic ring 12 against the connecting plate 3. According to the cutting requirements, the position of the movable plate 4 can be adjusted accordingly to cut different bevels on the costal cartilage to meet actual needs. Specifically, rotating the fastening cap 10 moves it away from the connecting plate 3, causing the elastic ring 12 to separate from the connecting plate 3. At this time, the moving shaft 8 can move freely within the strip groove 9, completing the position adjustment of the moving plate 4. After the adjustment is completed, rotating the fastening cap 10 in the opposite direction causes the fastening cap 10 to drive the elastic ring 12 closer to the connecting plate 3, so that the elastic ring 12 is compressed and abuts against the connecting plate 3. The elastic ring 12 increases the friction between the fastening cap 10 and the connecting plate 3, and this friction locks the position of the moving plate 4, ensuring that it will not shift during the cutting process. The operation is simple and can cut different planes.

Claims

1. An auxiliary cutting device for the oblique surface of costal cartilage, characterized in that, The device includes an upper clamping plate (1) and a lower clamping plate (2). The upper clamping plate (1) includes a connecting plate (3) and a moving plate (4). The connecting plate (3) is mounted on the lower clamping plate (2). The connecting plate (3) has a degree of freedom to move along the axial direction of the lower clamping plate (2). The moving plate (4) is slidably disposed at the bottom of the connecting plate (3). The moving plate (4) has a degree of freedom to move along the length direction of the lower clamping plate (2). A costal cartilage clamping space is formed between the moving plate (4) and the lower clamping plate (2). The moving plate (4) and the lower clamping plate (2) are arranged alternately along the length direction of the lower clamping plate (2) to form an inclined cutting surface.

2. The auxiliary cutting device for the oblique surface of costal cartilage according to claim 1, characterized in that, A screw (5) is rotatably mounted on the top of the lower clamping plate (2), and the connecting plate (3) is threaded onto the screw (5). A guide rod (6) is provided between the lower clamping plate (2) and the connecting plate (3). One end of the guide rod (6) is fixedly connected to the lower clamping plate (2), and the other end slides through the connecting plate (3).

3. The auxiliary cutting device for the oblique surface of costal cartilage according to claim 2, characterized in that, A knob (7) is provided at the bottom of the lower clamping plate (2), and the end of the screw (5) away from the connecting plate (3) is fixedly connected to the knob (7).

4. The auxiliary cutting device for the oblique surface of costal cartilage according to claim 1, characterized in that, The top of the movable plate (4) is vertically fixed with a movable shaft (8), and a strip groove (9) is provided through the connecting plate (3). The movable shaft (8) is slidably adapted to the strip groove (9).

5. The auxiliary cutting device for the oblique surface of costal cartilage according to claim 4, characterized in that, A fastening cap (10) is provided above the connecting plate (3), and a threaded hole (11) is provided at the bottom of the fastening cap (10). The end of the moving shaft (8) away from the moving plate (4) is threaded into the threaded hole (11).

6. The auxiliary cutting device for the oblique surface of costal cartilage according to claim 5, characterized in that, The bottom of the fastening cap (10) is fixed with an elastic ring (12), which is coaxial with the threaded hole (11). The fastening cap (10) squeezes the elastic ring (12) against the connecting plate (3).

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