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Patella trimming device

A trimming device and patella technology, applied in the field of medical equipment, can solve the problems of low trimming accuracy and low efficiency

Active Publication Date: 2021-07-06
青岛山大齐鲁医院(山东大学齐鲁医院(青岛))
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical defects that there is no tool specially used for trimming the patella in the prior art, resulting in low trimming accuracy and low efficiency, thereby providing a patella trimming device that can improve the trimming accuracy and efficiency of the patella

Method used

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Examples

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Embodiment

[0061] The patella trimming device provided by this embodiment is used for Figure 5-7 Patella as shown, ground as Figure 8-9 as shown, and make it better able to slide in the block groove (such as Figure 10 shown). Such as Figure 1-3 As shown, the patella trimming device in this embodiment includes: a circumferential limiter, a downward pressure limiter, a grinding member, a power member and a limiter structure, wherein:

[0062] The circumferential limiter includes a handle 1 and a limit ring 2; the function of the handle 1 is to facilitate the doctor's hand-held operation; the function of the limit ring 2 is to be sleeved on the periphery of the patella, to compress the muscles and tissues around the patella, and achieve Limitation of the patella.

[0063] The lower pressure limiter includes a lower pressure column 3 and a force application structure; the force application structure includes a fixed column 4, a polygonal sleeve 5, an extruded bolt 6 and an extension a...

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Abstract

The invention provides a patella trimming device. The patella trimming device comprises a circumferential limiting part suitable for being arranged on the periphery of a patella in a sleeving mode and limiting the patella in the circumferential direction; a downward pressing limiting part which is arranged on the circumferential limiting part and is suitable for performing downward pressing limiting on the patella from the upper part; a grinding part which is arranged on the downward pressing limiting part in a sleeving manner and is suitable for grinding the patella; a power part which is used for driving the grinding part to rotate so as to grind the patella; and limiting structure which is used for limiting the relative position of the grinding part and the power part. According to the patella trimming device, when the patella of a patient needs to be trimmed, a doctor holds a handle by hand, sleeves a limiting ring on the turned over patella of the patient, enables the back surface of the patella to face one side of the grinding part, then further fixes the patella by using the downward pressing limiting part, and then uses the power part to drive the grinding part to trim the patella; and therefore, the finishing precision and efficiency of the patella are improved, the grinded patella can better slide in a pulley groove of the femoral patellar surface, and the postoperative effect of the patient is better.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a device capable of quickly trimming the patella Background technique [0002] The patella, commonly known as the kneecap, is a sesamoid bone formed in the quadriceps tendon and the largest sesamoid bone in the body. The patella is located under the skin and is flat and millet-shaped, making it easy to touch. The front of the bone is rough, and the quadriceps tendon passes through; the back is smooth, covered with cartilage, and connects with the patellar surface of the femur. When the knee joint is doing extension and flexion, the patella slides in the trochlear groove of the patellar surface of the femur, protecting the knee joint. effect. [0003] Artificial knee replacement is a new technology for the treatment of knee joint diseases gradually developed after modern artificial hip joints were successfully applied to patients. It can effectively eradicate advanced kn...

Claims

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Application Information

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IPC IPC(8): A61B17/16
CPCA61B17/16A61B17/1677A61B2017/1602
Inventor 孔杰张鹏
Owner 青岛山大齐鲁医院(山东大学齐鲁医院(青岛))
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