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Detachable instrument

A technology of instruments and components, applied in the fields of heating surgical instruments, medical science, surgery, etc., can solve the problems of affecting the convenience of doctors, difficult to clean, and high cost of use, and achieve the goal of improving convenience and reducing cost of use. Effect

Pending Publication Date: 2021-07-02
SHANGHAI YISI MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the operation, some blood or tissue fluid will enter the gap between the knife rod, inner cannula, and outer cannula, which is difficult to clean
Therefore, the device cannot be reused and the cost of use is very high
[0003] In recent years, ultrasonic surgical instruments that can be reused have appeared. This type of instrument is designed with replaceable component structures such as sleeves and clamps, which can only be used once, while other parts can be used many times; but the existing disassembly The method usually needs to be rotated, which affects the convenience of doctors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Example 1 reference Figure 2-Figure 4 , figure 2 It is an exploded view of the outer casing fixing assembly in an embodiment of the present invention, image 3 It is a schematic diagram of the connection process between the outer sleeve assembly and the instrument body in an embodiment of the present invention, Figure 4 It is a schematic structural diagram of the connection between the outer sleeve assembly and the instrument body in one embodiment of the present invention; in one embodiment of the present invention, the outer sleeve fixing assembly 3 includes a dial 31, a return spring 32 (first elastic reset structure), Circlip 33, outer casing fixing part 34. The dial 31 includes a boss structure 311, a boss structure 312 (the first boss structure), and a containment structure 313; the snap spring 33 (the first elastic component) is provided with a load-bearing structure 331, a load-bearing structure 332, and the The first casing fixing member 34 is provided wi...

Embodiment 2

[0056] see Figure 5 to Figure 9 , Figure 5 It is an exploded view of the outer casing fixing assembly in an embodiment of the present invention; Figure 6 to Figure 9 It is a schematic diagram of the connection process between the outer sleeve assembly and the instrument body in an embodiment of the present invention; in an embodiment of the present invention, the outer sleeve assembly 11 is connected to the instrument body 2 through the outer sleeve fixing assembly 5. The outer sleeve assembly 11 is provided with a proximal groove 111 (first groove structure) and a stop end surface 113. Described outer sleeve fixing assembly 5 comprises dial wheel 51, round bottom pin 52 (first movable part), back-moving spring 53 (first elastic reset structure), outer sleeve fixing member 54. The dial 51 includes a variable section structure 511 and a boss structure 512; the variable section structure 511 (the first variable section structure) is arranged on the boss structure 512. The ...

Embodiment 3

[0061] Figure 10-13 It is a schematic diagram of the connection process between the outer sleeve assembly and the instrument body in an embodiment of the present invention; please refer to Figure 10 to Figure 13 , In one embodiment of the present invention, the outer sleeve assembly 11 is connected to the instrument main body 2 through the outer sleeve fixing assembly 7 . The outer sleeve assembly 11 is provided with a proximal notch structure 115 (first groove structure). The outer cannula fixing assembly 7 includes a dial 73 , a return spring 72 (first elastic return structure), an outer cannula fixing member 74 and an outer cannula connecting member 71 (first elastic component). A position-limiting structure 731 (first boss structure) is provided on the dial 73 . The dial wheel 73 is connected with the outer sleeve fixing member 74 by a boss buckle structure, and the dial wheel 73 can move axially relative to the outer sleeve fixing member 74 by the back-moving sprin...

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PUM

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Abstract

The invention discloses a detachable instrument. The detachable instrument comprises a cannula assembly and an instrument body, wherein the cannula assembly comprises a first cannula assembly and a second cannula assembly; the instrument body comprises a first cannula fixing assembly and a second cannula driving assembly; the first cannula assembly is connected with the second cannula assembly; and the first cannula assembly is connected with the first cannula fixing assembly. According to the detachable instrument provided by the invention, use cost can be effectively reduced; and meanwhile, the detachable cannula assembly can be linearly installed on the instrument body or detached from the instrument body, rotation operation is not needed, and convenience of installation and detachment is improved.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, relates to a surgical instrument, in particular to an ultrasonic surgical instrument with a detachable sleeve assembly. Background technique [0002] At present, the mainstream ultrasonic surgical instrument on the market is composed of an outer sleeve, an inner sleeve and a knife rod. During the operation, some blood or interstitial fluid will enter the gap between the knife rod, the inner sleeve, and the outer sleeve, which is difficult to be cleaned. Therefore, the apparatus cannot be reused, and the cost of use is very high. [0003] In recent years, ultrasonic surgical instruments that can be reused have appeared. This type of instrument is designed as a replaceable component structure with sleeves and clamps, which can only be used once, while other parts can be used many times; but the existing disassembly The method usually needs to be rotated, which affects the convenience ...

Claims

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Application Information

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IPC IPC(8): A61B17/32
CPCA61B17/320068A61B2017/320072A61B2017/0046A61B17/32A61B18/14
Inventor 李国新常王桃聂红林朱国征陈继东张广斌
Owner SHANGHAI YISI MEDICAL TECH CO LTD