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Precise bone chiseling guiding device under two-channel endoscope and using method thereof

A guiding device and dual-channel technology, which is applied in the field of lumbar orthopedic surgery technology, can solve the problems of reduced operation efficiency and safety, cumbersomeness, and poor support of soft channels, so as to improve efficiency and safety, expand observation field of view, and facilitate The effect of conduction

Pending Publication Date: 2022-05-24
THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are two ways to open a channel for instrument operation in the soft tissue, soft channel and hard channel. Both methods have certain shortcomings: the soft channel is often unable to open the soft tissue due to its poor support, and it is easy to cause surgical work. The soft tissue closes on its own, which affects the normal operation of the operation; while the hard channel is easy to limit the range of motion of surgical instruments, which brings inconvenience to the operation
Because the bone knife head has a blade, it will cut the soft tissue directly when it is inserted into the soft tissue, thereby causing damage to the soft tissue
In severe cases, bleeding will occur, and additional hemostasis operations are required at this time, which increases the complexity of the operation steps and reduces the efficiency and safety of the operation

Method used

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  • Precise bone chiseling guiding device under two-channel endoscope and using method thereof
  • Precise bone chiseling guiding device under two-channel endoscope and using method thereof
  • Precise bone chiseling guiding device under two-channel endoscope and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1 A dual-channel endoscopic chisel bone precision guidance device

[0046] The present embodiment is an improvement of the existing dual-channel endoscopic bone knife positioning working mode, providing a new channel for guiding the precise positioning of the bone knife in the soft tissue, that is, the soft tissue is gradually expanded by the multi-stage expansion component to achieve accurate positioning of the bone knife. as Figures 1 through 8 As shown, the present embodiment includes a multistage expansion assembly for step-by-step syringe expansion of soft tissues and a bone knife for chiseling the bone.

[0047] First, multi-level expansion components

[0048] In the present embodiment, the multistage expansion component includes a primary expander, a secondary expander and a three-stage depth limit expander adapted to the size:

[0049] The primary dilator is a Knox needle and is used to position directly at the surgical position.

[0050] The secondary dilator...

Embodiment 2

[0062] Example 2 A two-channel endoscopic chisel bone precision guidance device

[0063]With the operating position clearly visible, no primary dilators can be set up, only secondary dilators and three-stage depth-limited dilators can be set up. The difference between the present embodiment and Example 1 is that the multi-stage expansion component consists only of a secondary expander and a three-stage depth limit expander, and the secondary expander uses a solid expansion guide rod, directly into the soft tissue. The structure of the three-stage depth limiting dilator and the bone knife is the same as in Example 1.

Embodiment 3

[0064] Example 3 A two-channel endoscopic chisel bone precision guidance device using method

[0065] Using a dual-channel endoscopic chisel precise guidance device of Example 1 to achieve, comprising the following steps:

[0066] S1. Primary expansion

[0067] Precisely position the gram needle in the bone surface manipulation position within the soft tissue.

[0068] S2. Secondary expansion

[0069] The hollow expansion guide rod is placed outside the Kerner needle, and the sliding hollow expansion guide rod 2 expands the soft tissue; the hollow expansion guide rod 2 is positioned on the bone surface.

[0070] S3. Tertiary expansion

[0071] The depth-limited cannula is placed outside the hollow expansion guide rod 2, and the depth limiting sleeve is sliding; after the depth limiting cannula is positioned on the bone surface, the hollow expansion guide rod 2 and the Gram needle are removed from the depth limiting cannula.

[0072] S4. Bone knife positioning

[0073] The bone kni...

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Abstract

The invention discloses a precise bone chiseling guiding device under a two-channel endoscope and a using method of the precise bone chiseling guiding device under the two-channel endoscope, and the precise bone chiseling guiding device under the two-channel endoscope comprises a multi-stage expansion assembly and a bone knife; the multi-stage expansion assembly comprises a second-stage expander and a third-stage depth limiting expander; the using method of the precise guiding device for bone chiseling under the two-channel endoscope comprises the following steps that S1, primary expansion is conducted; s2, performing secondary expansion; s3, performing third-stage expansion; and S4, positioning the osteotome. The bone knife is accurately positioned through step-by-step expansion of soft tissue by the multi-stage expansion assembly, and the operation efficiency and safety are improved. The guiding and positioning device is suitable for the lumbar vertebra orthopedic surgery under the double-channel endoscope and is used for accurately guiding and positioning the osteotome.

Description

Technical field [0001] The present invention belongs to the field of lumbar orthopedic surgery technology, relates to a double-channel endoscopic chisel bone, specifically a dual-channel endoscopic chisel bone precision guidance device and its use. Background [0002] In the double-channel endoscopic lumbar spine orthopedic surgery, such as dual-channel endoscopic lumbar lamina decompression nucleus pulposuplestomy, dual-channel endoscopic lumbar intervertebral fusion, requires two channels of head and tail, one of which is placed in the arthroscope, the other channel is placed in the operating instrument, the bone knife is positioned in the surgical working position after passing through the operating channel, and the bone knife is finally struck to achieve bone gouge. At present, for the channel for instrument operation in the soft tissue, there are soft channels and hard channels, and there are certain deficiencies in both ways: the soft channel is often unable to open the sof...

Claims

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Application Information

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IPC IPC(8): A61B17/17
CPCA61B17/1735A61B17/1757A61B17/171
Inventor 李佳奇王伟张为王伟鉴
Owner THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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