Ultrasonic articular cavity cleaning gun used under arthroscope

Through the ultrasonic joint cavity cleaning gun, the problem of difficulty in completely removing urate crystals is solved in the prior art, and the rapid and safe cleaning effect is achieved, and surgical operations are simplified.

WO2025175619A1PCT designated stage Publication Date: 2025-08-28CENT HOSPITAL OF MINHANG DISTRICT SHANGHAI
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Patent Information

Application Number
PCT/CN2024/083779
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-02-22
Filing Date
2024-03-26
Publication Date
2025-08-28

AI Technical Summary

Technical Problem

The prior art is difficult to efficiently remove urate crystals under arthroscopy, resulting in time-consuming and labor-intensive surgery and long recovery time for patients.

Method used

The ultrasonic joint cavity cleaning gun is used to use cavitation bubbles generated by ultrasonic oscillation to impact the urate crystals in the joint cavity, causing it to fall off, and the joint cavity is cleaned under arthroscopic through the ultrasonic probe rod and conduction head.

Benefits of technology

The rapid and thorough removal of urate crystals is achieved, the surgical process is simplified, and the patient's pain and recovery time is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided is an ultrasonic articular cavity cleaning gun used under an arthroscope, comprising a handle (7) and an ultrasonic probe rod (8), wherein an ultrasonic generator (13) is arranged in the handle (7), a starting switch (9), a power regulator (10), and a guide wire (12) arranged at a tail end of the handle (7) and configured for connecting to a host are arranged on the handle (7), the ultrasonic probe rod (8) is arranged at a front end of the handle (7) and connected to the ultrasonic generator (13), the ultrasonic probe rod (8) is sleeved with an isolation protective sleeve (11), and a front end of the ultrasonic probe rod (8) is exposed out of the isolation protective sleeve (11) to form an ultrasonic transmission head (8a). An end of the ultrasonic cleaning gun is placed in the articular cavity of a patient under the arthroscope, such that cavitation bubbles generated by ultrasonic oscillation are used for impact to dislodge the urate crystals, thereby achieving the purpose of thorough cleaning.
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Description

An ultrasonic joint cavity cleaning gun used under arthroscopy Technical Field

[0001] The invention belongs to minimally invasive joint equipment, and in particular relates to an ultrasonic joint cavity cleaning gun used under arthroscopy. Background Art

[0002] The deposition of urate crystals in the joints and soft tissues of the human body is a recognized complication of chronic gout. These deposits are usually asymptomatic, so clinically, patients often present with large numbers of these gout crystals in their joints. Some patients with severe gouty arthritis, such as severe gouty synovitis, often require surgical treatment. Currently, minimally invasive arthroscopic surgery is a trend, but these gout crystals adhere in large quantities and firmly to tissues such as the synovium and articular cartilage. Scraping with tools such as planers under arthroscopy is difficult and time-consuming, making their removal extremely difficult and labor-intensive. This makes clinical treatment extremely challenging, and the patient's subsequent recovery time is also prolonged.

[0003] Therefore, there is an urgent need for a cleaning method that can safely, conveniently and effectively remove such gout crystals and tophi, which can quickly and completely detach the gout crystals from the attachment site, thereby achieving the purpose of thorough cleaning, thereby reducing the patient's suffering, and at the same time solving the problem that crystal removal surgery is difficult to operate and difficult for doctors to perform.

[0004] Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an ultrasonic joint cavity cleaning gun for use under arthroscopy. By placing the end of the ultrasonic cleaning gun in the patient's joint cavity under arthroscopy, the cavitation bubbles generated by ultrasonic vibration are used to collide and cause urate crystals to fall off, thereby achieving the purpose of thorough cleaning and reducing the patient's suffering.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The ultrasonic joint cavity cleaning gun used under arthroscopy includes:

[0008] The host computer includes a chassis, a display mounted on the chassis, a power / frequency selection knob, an adjustment knob, a power switch, and a wire plug interface;

[0009] The ultrasonic cleaning gun includes a handle and an ultrasonic probe. An ultrasonic generator is installed in the handle. The handle is provided with a start switch, a power regulator and a wire at the end of the handle for connecting to the host. The ultrasonic probe is located at the front end of the handle and connected to the ultrasonic generator. An isolation protective cover is provided on the ultrasonic probe, and the isolation protective cover is exposed at the front end of the ultrasonic probe to form an ultrasonic conduction head.

[0010] The ultrasonic probe is made of stainless steel.

[0011] The diameter of the ultrasonic probe is 4-6 mm.

[0012] The isolation protective sleeve is made of polyimide or polyurethane material.

[0013] The ultrasonic joint cavity cleaning gun used under arthroscopy of the present invention extends an ultrasonic probe into the patient's joint cavity. Under the arthroscopy, ultrasonic waves generated by an ultrasonic generator are introduced into the cavity through an ultrasonic conduction head, and cavitation bubbles generated by ultrasonic vibrations are then used to collide with urate crystals in the cavity, causing a large amount of urate crystals to automatically fall off, thereby achieving harmless cleaning of cartilage and surrounding soft tissues, facilitating operation and reducing the pain of the patient during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The invention is described in detail below with reference to the accompanying drawings and specific embodiments:

[0015] FIG1 is a schematic structural diagram of an ultrasonic cleaning gun of the present invention;

[0016] FIG2 is a schematic structural diagram of a host computer according to the present invention;

[0017] FIG3 is a diagram showing the internal structure of the handle of the present invention. DETAILED DESCRIPTION

[0018] An ultrasonic joint cavity cleaning gun for arthroscopic use of the present invention is shown in Figures 1 to 3 and mainly comprises:

[0019] The host includes a chassis 1, a display 2 arranged on the chassis 1, a power / frequency selection knob 3, an adjustment knob 4, a power switch 5 and a wire plug interface 6; after the corresponding frequency or power is selected by rotating the knob 3, the corresponding function can be adjusted by adjusting the knob 4.

[0020] The ultrasonic cleaning gun includes a handle 7 and a stainless steel ultrasonic probe 8. An ultrasonic generator 13 is housed within the handle 7. The handle 7 is also equipped with a start switch 9, a power regulator 10, and a wire 12 at the end of the handle 7 for connecting to the main unit. The ultrasonic probe 8 is located at the front end of the handle 7 and extends into the handle 7 to connect to the vibrator of the ultrasonic generator 13. An isolation protective sheath 11 is provided over the ultrasonic probe 8, with the front end of the ultrasonic probe 8 protruding from the isolation protective sheath 11 to form an ultrasonic conducting head 8a. The isolation protective sheath 11 can be made of a film material such as polyimide or polyurethane, or other similar ultrasonic shielding material.

[0021] During use, the medical staff connects the wire 12 of the handle 7 to the wire plug interface 6 of the host in advance. After the preparations are ready, the doctor uses a minimally invasive scalpel to make a small incision in the patient's joint cavity. After inserting an arthroscope from one of the incisions to find the lesion location in the patient's joint cavity, the doctor then holds the handle 7 and inserts an ultrasonic probe 8 with a diameter of 4-6 mm from another incision. The power switch 5 of the host is turned on. After power is turned on, the doctor operates the power / frequency selection knob 3 and the adjustment knob 4 in sequence, and observes the relevant power and frequency values ​​on the display 2 to ensure that the required set ultrasonic value is reached; at this time, the doctor turns on the start switch 9 of the handle 7, and the ultrasonic generator generates ultrasonic waves and transmits them to the ultrasonic conduction head 8a through the probe. Due to the setting of the isolation protective cover 11, the ultrasonic waves can only be emitted from the frontmost ultrasonic conduction head 8a into the cavity, forming ultrasonic oscillation cavitation bubbles to collide with the uric acid crystals at the lesion location. Experiments have shown that ultrasonic cleaning can shatter urate crystals and cause them to fall off automatically. Of course, according to the actual factors such as the number and size of the patient's urate crystals, the doctor can adjust the ultrasonic power at any time through the power regulator 10 of the handle 7 to obtain the best cleaning effect, saving time and effort, and without touching the lesion, and is harmless to the patient's cartilage and surrounding soft tissues, greatly reducing the patient's pain.

[0022] In summary, the use of the ultrasonic joint cavity cleaning gun of the present invention can greatly simplify the uric acid crystal removal surgery under arthroscopic surgery, which is conducive to the development and promotion of such minimally invasive surgery, and can also benefit the majority of ventilation patients who need surgery.

[0023] However, those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. An ultrasonic joint cavity cleaning gun used under arthroscopy, characterized in that: include: The host computer includes a chassis, a display mounted on the chassis, a power / frequency selection knob, an adjustment knob, a power switch, and a wire plug interface; The ultrasonic cleaning gun includes a handle and an ultrasonic probe. An ultrasonic generator is installed in the handle. The handle is provided with a start switch, a power regulator and a wire at the end of the handle for connecting to the host. The ultrasonic probe is located at the front end of the handle and connected to the ultrasonic generator. An isolation protective cover is provided on the ultrasonic probe, and the isolation protective cover is exposed at the front end of the ultrasonic probe to form an ultrasonic conduction head.

2. The ultrasonic joint cavity cleaning gun for arthroscopic use according to claim 1, characterized in that: The ultrasonic probe is made of stainless steel.

3. The ultrasonic joint cavity cleaning gun for arthroscopic use according to claim 2, characterized in that: The diameter of the ultrasonic probe is 4-6 mm.

4. The ultrasonic joint cavity cleaning gun for arthroscopic use according to claim 1, characterized in that: The isolation protective sleeve is made of polyimide or polyurethane material.

Citation Information

Patent Citations

  • Ultrasonic surgical instrument with features for forming bubbles to enhance cavitation

    CN105744903A

  • Arthroscopic articular cartilage gout crystal cleaning brush

    CN214966293U

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    CN218651937U

  • Ultrasonic treatment apparatus

    JP1989232947A