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A guide fixture for pedicle screw placement

A technology of pedicle screws and fixtures, applied in medical science, surgery, fixers, etc.

Active Publication Date: 2021-04-20
夏磊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a guide fixture for pedicle screw placement in spinal surgery, to solve the problems existing in the existing pedicle screw fixation technology, to improve the accuracy of screw placement, shorten the During the operation, reduce the amount of fluoroscopy radiation, reduce the damage of the patient, and improve the success rate of the operation

Method used

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  • A guide fixture for pedicle screw placement
  • A guide fixture for pedicle screw placement
  • A guide fixture for pedicle screw placement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1, such as Figure 1-6 The shown guide fixture for pedicle 3D printing screw placement is composed of a bonding sheet 1, a guide cylinder 3 and an arc-shaped handle 2. The arc-shaped handle 2 is placed on the back of the bonding sheet 1. One end of the arc-shaped handle 2 is connected to One side of the bonding piece 1 is fixedly connected, and the other end is fixedly connected with the guide cylinder 3. The arc-shaped handle 2 is 39 mm long and 4.5 mm in diameter; The side of the bonding sheet 1 that is in contact with the back of the spine is provided with a curved surface that can be bonded to both sides of the back of the spine, with a thickness of 3mm; the guide tube 3 is a hollow short round tube with a length of 25mm and an inner diameter of 2.2mm, embedded in the other side In the bonding sheet 1, the center communicates with the bonding sheet to form a guide through hole 4, which is filled with a stretchable and expandable sealing rubber 7, and a rubbe...

Embodiment 2

[0034] Example 2, such as Figure 1-4 The pedicle 3D printing screw setting guide fixture shown is composed of a bonding sheet 1, a guide cylinder 3 and an arc-shaped handle 2. The arc-shaped handle 2 is placed on the back of the bonding sheet 1. One end of the arc-shaped handle 2 is connected to One side of the bonding piece 1 is fixedly connected, and the other end is fixedly connected with the guide cylinder 3. The arc-shaped handle 2 is 40mm long and 4.4mm in diameter; The side of the bonding sheet 1 that is in contact with the back of the spine is provided with a curved surface that can be bonded to both sides of the back of the spine, with a thickness of 2mm; the guide tube 3 is a hollow short round tube with a length of 20mm and an inner diameter of 2.1mm, embedded in the other side In the laminating sheet 1 , the center communicates with the laminating sheet 1 to form a guide through hole 4 , the guide through hole 4 is filled with a stretchable and expandable sealing ...

Embodiment 3

[0035] Example 3, such as Figure 1-4 The shown guide fixture for pedicle 3D printing screw placement is composed of a bonding sheet 1, a guide cylinder 3 and an arc-shaped handle 2. The arc-shaped handle 2 is placed on the back of the bonding sheet. The side bonding piece 1 is fixedly connected, and the other end is fixedly connected with the guide cylinder 3. The arc-shaped handle 2 is 39 mm long and 4.5 mm in diameter; The side of the joint piece 1 that is in contact with the back of the spine is provided with a curved surface that can be attached to both sides of the back of the spine, with a thickness of 5mm; the guide cylinder 3 is a hollow short round tube with a length of 30mm and an inner diameter of 2.1mm, which is embedded in the other side. In the bonding sheet 1, the center communicates with the bonding sheet 1 to form a guide through hole 4, which is filled with a stretchable and expandable sealing rubber 7, and a rubber baffle 8 is provided at the bottom.

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Abstract

The invention discloses a pedicle screw setting guide fixture, which belongs to the field of medical equipment. Specifically, it is composed of a fitting piece, a guide cylinder and an arc-shaped handle. The arc-shaped handle is placed on the back of the fitting piece. One end of the arc-shaped handle is fixedly connected to one side of the fitting piece, and the other end is fixedly connected to the guide cylinder; the fitting piece The shape of the pedicle is a herringbone distribution suitable for the pedicle, and the side of the bonding sheet in contact with the back of the spine is provided with a curved surface that can fit on both sides of the back of the spine; the guide cylinder is a short hollow tube, embedded in the other side of the sticker In the bonding sheet, the center communicates with the bonding sheet to form a guiding through hole. Using 3D imaging technology to generate high-precision, integrally formed pedicle screw screw placement guide fixture physical template, which reduces the error of screw placement, improves the accuracy of screw placement, reduces the difficulty of operation, shortens the operation time, and reduces the radiation of perspective radiation amount to reduce patient injury.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a guide fixture for pedicle screw placement. Background technique [0002] Complex spinal surgery includes congenital deformities of the spine, post-traumatic deformities, etc., and has the following characteristics: (1) The shape of the diseased vertebra is irregular, the traditional surgical method is not precise enough, and the success rate of screw placement is less than 100% %, the stability is not strong after screw placement; (2) often involving many vertebral bodies, a large area of ​​incision and exposure is required during the operation, resulting in large trauma and long operation time; (3) the anatomical structure of the vertebral body is abnormal, and the Damage to adjacent organs, blood vessels and nerves during screw placement. The current treatment methods for complex spinal surgery mostly rely on the surgeon's clinical experience, a standardized trea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/90A61B17/70
CPCA61B17/7074A61B17/88A61B17/90
Inventor 夏磊
Owner 夏磊
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