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Cartilage cutting thickness regulating device and cartilage cutting system

A technology of cutting thickness and adjusting device, applied in metal processing, ear treatment, etc., can solve the problems of affecting the surgical effect, inconvenient operation, inaccurate thickness adjustment, etc., to improve surgical efficiency, excellent use effect, and flexible thickness adjustment. Effect

Active Publication Date: 2017-11-24
王杰 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this device are: 1. Due to the small size of the cartilage, the size of the spacer is also designed to be small. The size is about 13mm×14mm, and the thickness is 0.1mm, 0.2mm, and 0.3mm. It is inconvenient to handle during operation and easy to fall off. fall
2. Due to the small size of the gasket, it is easy to lose during storage
3. The gasket is not easy to clean, and it is easy to cause pollution
4. The operation is complicated. If cartilage slices of several specifications need to be cut out, gaskets of different specifications must be replaced each time, and the gaskets must be inserted and removed repeatedly. There are many steps and the operation is inconvenient.
Although this structure can avoid many problems in the prior art of using shims to adjust the cutting thickness of cartilage, it also has defects: 1. The doctor needs both hands to complete the thickness adjustment action during the operation, that is, one hand holds the first clamp the other hand to pull the knob to adjust the position of the knob
This kind of operation steps is relatively complicated, and the doctor often believes that the more convenient the instrument operation is, the more conducive to the smooth progress of the operation.
2. After the cartilage is inserted into the slit of the first clamping part and the second clamping part, the slider will squeeze the cartilage and cause cartilage deformation during the movement of the slider to the second fitting surface. The cartilage deformation is not only difficult to cut, but also released after cutting Cartilage slices, the extruded cartilage slices will be deformed and reset, causing the thickness of the cartilage slices to be inconsistent with the target thickness, and the thickness adjustment is inaccurate, which will further affect the surgical effect
3. The cartilage thickness can only be adjusted in six positions, and cannot be adjusted at will according to needs

Method used

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  • Cartilage cutting thickness regulating device and cartilage cutting system
  • Cartilage cutting thickness regulating device and cartilage cutting system
  • Cartilage cutting thickness regulating device and cartilage cutting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as Figures 1 to 6 As shown, this embodiment discloses a cartilage cutting thickness adjustment device, which includes a first clamping part 1 and a second clamping part 2, and a detachable fixed connection is designed between the two clamping parts. The detachable fixed connection means that the first clamping part and the second clamping part can be separated before use or when not in use, and the two can be fixedly connected together by a method well known to those skilled in the art after being placed in the cartilage. In this embodiment, the detachable fixed connection mode is that the first clamping part 1 is provided with a through hole 11, and the through hole 11 is a non-threaded hole in this embodiment, and the aperture is slightly larger than the diameter of the fixing bolt; the second clamping part 2 is provided with There is a threaded blind hole 21 , and a fastening bolt 3 passes through the threaded through hole 11 and the threaded blind hole 21 to sec...

Embodiment 2

[0048] Such as Figure 7 to Figure 9 As shown, all structures of the second clamping part 2 of this embodiment are the same as those of Embodiment 1. The first clamping part 1 is also provided with a follower assembly, and the follower assembly can follow the movement of the active slider 26 .

[0049] The follower assembly includes a follower block 14 at the same horizontal position as the active slider 26, a follower block positioning bolt 15 that can stop the end surface of the follower block 14 protruding from the first fitting surface, and control the follower block 14 to be squeezed. The follower spring 16 that returns to the original position after pressing, the follower spring 16 remains compressed under the pressure of the follower block all the time, its purpose is to keep the end face of the follower block and the first fitting surface in the same plane, and After the follower block is retracted under the pressure of the active slider and the cartilage, it can stil...

Embodiment 3

[0053] This embodiment discloses a cartilage cutting system with adjustable thickness, which includes the above-mentioned device for adjusting the cutting thickness of cartilage slices, and also includes a cutting assembly 5 for cutting cartilage. The structure of the cartilage sheet cutting thickness adjusting device is the same as that described in Embodiment 2, and will not be repeated here. Such as Figure 10 As shown, the cutting assembly 5 includes a blade 51 and two bows 52 for fixing the blade 51 . The blade 51 is provided with four positioning holes 54, and the two bows are respectively provided with positioning holes 55 and positioning pins 56 corresponding to the number and positions of the positioning holes 54. The two knife bows 52 realize the precise positioning of the blade 51 through the blade positioning hole 54, the knife bow positioning hole 55 and the knife bow positioning pin 56, so that the blade 51 is always kept in a horizontal state during the cutting...

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PUM

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Abstract

The invention discloses a cartilage cutting thickness regulating device. The cartilage cutting thickness regulating device comprises a first clamping part and a second clamping part, and further comprises a thickness regulating assembly, wherein the two clamping parts are fixedly connected detachably; the first clamping part is provided with a first joint surface, the second clamping part is provided with a second joint surface, and the second joint surface partially sink in the perpendicular direction, so that the second joint surface can form a narrow gap for allowing a blade to insert after being jointed with the first joint surface; a partially open groove is formed in a sunken position of the second jointed surface, and a through hole is formed in the side wall of the groove; the thickness regulating assembly comprises a drive slide block and a knob; the drive slide block is arranged in the groove and is partially inserted into the through hole; the knob is inserted from the other side of the through hole; the end surface of the knob is equipped with a lug boss; the end surface of the drive slide block is a spiral curved surface; the lug boss is always in tight contact with the spiral curved surface; and the knob rotates around the axis thereof to control the drive slide block to perform linear motion for getting close to or getting away from the first jointed surface relative to the second clamping part. The cartilage cutting thickness regulating device is operated, so that cartilage thickness is conveniently regulated, and thickness regulating precision is high.

Description

technical field [0001] The invention relates to an ear surgery device, in particular to a cartilage cutting thickness adjustment device capable of conveniently, quickly and accurately cutting cartilage slices of different thickness specifications and a cartilage cutting system containing the device. Background technique [0002] At present, cartilage slices with a thickness of less than 0.6 mm are often used in ear surgery. The most commonly used clinical method is to simply slice the cartilage with surgical knives and scissors. However, the shape and thickness of the cartilage slices cut out by this method etc. are difficult to control, and the operation is inconvenient and inefficient, which seriously affects the continuity of clinical operations, and easily causes problems such as prolonged operation time and poor operation results. [0003] Aiming at the above problems, those skilled in the art have designed a cartilage slice cutter device, which includes a blade and a b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26D7/02B26D7/27A61F11/00
CPCB26D7/02B26D7/27A61F11/20Y02P40/57
Inventor 王杰李永新刘超侯伟乾孔祥吉
Owner 王杰