Knee joint cavity self-service injection device convenient to use

An injection device and knee joint technology, applied in the field of medical devices, can solve problems such as the large gap in the level of treatment of the knee joint cavity, infection of the knee joint cavity, and difficulty in unifying standards for the joint cavity, so as to avoid infection, avoid injury, and improve convenience Effect

Pending Publication Date: 2022-04-01
湖南省人民医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a convenient self-service injection device for the knee joint cavity to solve the problem that it is difficult to have a unified standard for the injection of the joint cavity at present. It is very large, resulting in a large gap in the level of clinical treatment of the knee joint cavity in hospitals at all levels, and it is very easy to cause infection and drug malabsorption after injection of the knee joint cavity

Method used

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  • Knee joint cavity self-service injection device convenient to use
  • Knee joint cavity self-service injection device convenient to use
  • Knee joint cavity self-service injection device convenient to use

Examples

Experimental program
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Embodiment 1

[0028] see Figure 1-6 , the present invention provides a technical solution: a convenient self-injection device for the knee joint cavity, which includes a contoured part 10 , a pressing assembly 40 and an automatic injection mechanism 90 arranged outside the positioning sleeve 20 .

[0029] In this embodiment, specifically, the profiling component 10 is made of synthetic resin material.

[0030] Wherein, the surface of the inner wall of the profiling part 10 is provided with an accommodating groove 11, and the interior of the accommodating groove 11 is filled with a gel film 12. The gel film 12 is a one-way valve structure, and the outer wall surface of the profiling part 10 is fixedly connected with a positioning sleeve 20 for positioning. The sleeve 20 maintains 0°-90° with the coronal articular surface, and 0°-75° with the sagittal articular surface. The profiling part 10 is provided with an injection hole with a diameter larger than the diameter of the syringe needle at ...

Embodiment 2

[0054] see Figure 1-6 , the present invention provides a technical solution: a convenient method for using a knee joint cavity self-injection device, comprising the following steps:

[0055] S1. When fixing the profiling part 10, first fix the two leg strap rings 50 on the thigh and the calf respectively, then fix the profiling part 10 on the patient's knee, and fix the profiling part 10 through the fixing strap 30. The component 10 is fixed at the patient's knee joint, and at the same time, the bone landmarks such as the patella and femur are used to determine the injection site in the joint cavity;

[0056] S2, then insert the syringe into the inside of the pressing sleeve 41, the needle of the syringe will pass through the injection hole 21 and the through hole 45 in sequence, then pass through the gel film 12 for injection, and then fix the guide cylinder 91 on the positioning sleeve 20, At the same time, the handle of the syringe will pass through the connector 92 and e...

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Abstract

The invention discloses a convenient knee joint cavity self-service injection device which comprises a profiling component wrapping the outside of a knee joint, a containing groove is formed in the surface of the inner wall of the profiling component and filled with a gel film, a positioning sleeve is fixedly connected to the surface of the outer wall of the profiling component, and a pressing assembly is arranged in the positioning sleeve. The pressing assembly comprises a pressing sleeve, and the bottom end of the pressing sleeve is fixedly connected with a supporting rod. Accurate positioning injection can be carried out, after articular cavity injection and a needle are drawn out, the gel film can be pressed through the pressing assembly, after the needle tip is pulled out, the valve is automatically closed, in addition, due to the fact that the gel film has the disinfection function, the hemostasis function can be achieved through direct pressing, and the infection condition is avoided; a patient does not need to go to a hospital repeatedly during articular cavity injection of sodium hyaluronate and the like, and the patient can conveniently perform injection at any place by himself / herself.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a convenient knee joint cavity self-injection device. Background technique [0002] Articular cartilage damage is common in the clinical manifestations of osteoarthritis. If the treatment is not timely, joint degeneration will follow, leading to osteoarthritis. As the disease progresses, severe cases may eventually lead to disability. The latest large-scale study report of 258,237 people in the United States pointed out that about 14% of adults in the United States suffer from osteoarthritis, which affects their quality of life, and the related expenses for treatment are as high as 18,435 US dollars per capita, which is equivalent to Twice as many patients with non-osteoarthritis. [0003] According to the national treatment guidelines for osteoarthritis in 2018, injection of sodium hyaluronate into the knee joint "can improve joint function, relieve pain, have high safe...

Claims

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Application Information

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IPC IPC(8): A61M5/20A61M5/42A61M5/31
Inventor 黄术李依涵周文虎谢勇陈冠宇袁军李嘉仪
Owner 湖南省人民医院
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