Retractable brush for arthroscope

An arthroscope and brush technology, applied in the field of medical devices, can solve problems such as smooth damage and internal infection, arthroscopic surgery may be required to clean the lesions, and it is difficult to control the cleaning depth.

Pending Publication Date: 2019-10-18
PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the operation, it is often found that many diseased synovial tissues are attached to the surface of articular cartilage (such as Figures 9 to 11 shown); when conservative treatment of gouty synovitis cannot relieve pain or joint dysfunction occurs, arthroscopic surgery is also required to clear the diseased synovium and urate crystals in the joint cavity, and a large number of white urate crystals will be found during the operation Urate crystals attached to the surface of articular cartilage; in addition, when intra-articular infection occurs after artificial joint replacement, arthroscopic surgery may also be required to clean the lesion. At this time, a layer of pseudomembrane covered by infection will be found during the operation on the prosthetic surface
All of the above situations need to remove the diseased tissue on the surface of the articular carti

Method used

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  • Retractable brush for arthroscope
  • Retractable brush for arthroscope
  • Retractable brush for arthroscope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see Figure 1 to Figure 6 as well as Figure 8 As shown, the present embodiment provides a retractable brush for arthroscopy, including a brush head 1, a brush handle 11 and a sleeve 2; the brush head 1 is arranged at the front end of the brush handle 11; Diameter, sleeved on the outside of the brush head 1 and the brush handle 11, the length of the sleeve 2 is greater than or equal to the length of the brush head 1, the sleeve needs to cover the brush head 1 to avoid excessive friction between the brush head 1 and the incision when entering and exiting the joint incision , Difficult to pass.

[0032] Preferably, the bristles of the brush head 1 have at least two levels of branches, and the multi-level bristles can increase the contact chance between the brush head 1 and the joint, and clean the joint surface from multiple angles and all directions.

[0033] Preferably, the rear end of the brush handle 11 is also provided with a brush handle pull ring 12 . More prefe...

Embodiment 2

[0038] see Figure 7 As shown, the present embodiment provides a telescopic brush for arthroscopic use, the brush handle 11 is also provided with a hinged part, and the hinged part includes an upper hinged piece 31, a lower hinged piece 32, a bolt 33 and a lock nut 34, and the bolt 33 Through the upper hinge piece 31 and the lower hinge piece 32 , the locking nut 34 is sleeved on the tail end of the bolt 33 . The angle of the brush head can be adjusted by loosening the lock nut 34, and after being adjusted to an angle suitable for operation, the lock nut 34 is tightened to fix the angle of the brush head. Other parts of the structure of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

[0039] When in use, push the sleeve 2 forward until it covers the brush head 1, then insert the brush of this application into the joint incision, observe under the arthroscope, operate the brush head 1 to extend into a suitable length, and then pull out th...

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PUM

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Abstract

The invention discloses a retractable brush for an arthroscope. The retractable brush comprises a brush head, a brush handle and a casing tube; the brush head is arranged at the front end of the brushhandle; the inner diameter of the casing pipe is greater than the outer diameter of the brush handle, the casing tube sleeves the brush head and the brush handle, and the length of the casing tube isgreater than or equal to that of the brush head. The retractable brush is convenient to operate. Compared with conventional planing cutter heads and radio frequency vaporization cutter heads, the retractable brush has the advantages that not only can diseased tissue on the surface of a joint be removed to the maximum extent, but also the cartilago articularis cannot be damaged, and convenience isprovided for the brush to get in or get out of a micro incision.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a retractable brush for arthroscopy. Background technique [0002] Thanks to the rapid development of arthroscopic minimally invasive technology and instruments, the indications for arthroscopic surgery are becoming more and more extensive, and the surgical effect is constantly improving. Many autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosus, and ankylosing spondylitis, can cause synovial inflammation in different joints throughout the body. When such patients fail to respond to regular conservative treatment, they can be completely resected by arthroscopic surgery. Diseased synovial tissue to relieve symptoms and improve joint function. However, during the operation, it is often found that many diseased synovial tissues are attached to the surface of articular cartilage (such as Figures 9 to 11 shown); when conservative treatment of g...

Claims

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Application Information

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IPC IPC(8): A61B17/94
CPCA61B17/00234
Inventor 杨波金迪
Owner PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI
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