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Injectable vertebra repairing device

An injection-type, vertebral body technology, applied in the direction of fixator, can solve problems such as rough surface bone defects, and achieve the effects of repairing compression fractures, improving injection efficiency, and enhancing effects

Active Publication Date: 2016-07-20
山东明德生物医学工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The research on the combination of the injectable chain with a central through hole designed in the present invention and bone cement to repair bone defects has not been reported yet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The material of the injectable chain is PEEK among non-degradable polymer materials, the diameter is Ф10mm, the diameter of the inner central through hole is Ф3mm, and there are multiple grooves on the top and bottom of the chain respectively, and the shape of the groove is rectangular.

[0043] First, connect the threaded port (210) on the injectable PEEK chain (100) with the tapered thread structure (310) of the push rod casing, the tapered thread taper is 1:1; The injected PEEK strand (100) is filled into the matching filling sleeve (200).

[0044] Then, push the push rod sleeve (300) to push the injectable chain (100) into the damaged push body, such as Figure 6 As shown, the injection chain gradually bends and gradually fills the center of the entire vertebral body. After the injection is completed, the push rod (330) in the push rod sleeve is drawn out.

[0045] Finally, advance the bone cement (400) through the push rod sleeve (300) to the central through hole of...

Embodiment 2

[0049] The material of the injectable chain is PEEK in the non-degradable polymer material, the diameter is Ф5mm, the diameter of the inner central through hole is Ф1mm, and there are multiple grooves on the top and bottom of the chain respectively, and the shape of the groove is trapezoidal

[0050] First, connect the threaded port (210) on the injectable PEEK chain with the tapered thread structure (310) of the push rod sleeve, the tapered thread taper is 1:3; rotate clockwise to lock, and then insert the injectable PEEK chain (100) filled into matching filling sleeve (200)

[0051] Then, push the push rod sleeve (300), push the injectable chain (100) into the damaged push body, and gradually fill up the center of the entire vertebral body, and extract the push rod (330) in the push rod sleeve.

[0052] Finally, push the bone cement (400) through the push rod sleeve (300) to the central through hole of the chain, extrude from the groove, and finally fill the damaged vertebra...

Embodiment 3

[0054] The material of the injectable chain is PEEK in non-degradable polymer materials, the diameter is Ф3mm, the diameter of the inner central through hole is Ф0.5mm, and there are multiple grooves on the top and bottom of the chain respectively, and the shape of the groove is triangle

[0055] First, connect the threaded port (210) on the injectable PEEK chain with the tapered thread structure (310) of the push rod sleeve, the tapered thread taper is 1:2; rotate clockwise to lock, and then insert the injectable PEEK chain (100) filled into matching filling sleeve (200)

[0056] Then, push the push rod sleeve (300), push the injectable chain (100) into the damaged push body, and gradually fill up the center of the entire vertebral body, and extract the push rod (330) in the push rod sleeve.

[0057] Finally, push the bone cement (400) through the push rod sleeve (300) to the central through hole of the chain, extrude from the groove, and finally fill the damaged vertebral b...

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Abstract

The invention relates to an injectable vertebra repairing device for treating a spinal vertebral fracture.The injectable vertebra repairing device comprises an injectable chain and a filling tool; the injectable chain is in the shape of a cylinder with the rough surface, a central through hole is formed in the injectable chain, multiple grooves are formed in the upper portion and the lower portion of the chain, and the grooves are communicated with the central through hole; the filling tool comprises a filling casing pipe and a push rod casing pipe, and the tail end of the filling casing pipe and the tail end of the push rod casing pipe are provided with grab handles respectively; the front end of the push rod casing pipe and the near end of the injectable chain are designed to be of a tapper thread structure.When the device is operated, the top end of the filling casing pipe stretches into the lesion part, and the chain is filled into the damaged vertebra through the push rod casing pipe; bone cement is injected into the central through hole of the chain through the push rod casing pipe; the central through hole and the grooves are sequentially fully filled with the bone cement, solidification is performed to complete repairing, pressure exerting on the lesion part can be uniform and be reduced, and therefore the effect of effectively repairing the vertebra is achieved.The injectable vertebra repairing device is applied to the field of medical instruments and mainly used for achieving the purposes of stabilizing the fracture, recovering the vertebral mechanical strength and relieving pain.

Description

technical field [0001] The invention relates to an injectable vertebral body repair device, which is mainly used in orthopedic medicine, medical equipment and other fields. Background technique [0002] With the aggravation of the aging population, the widespread use of steroid hormones and the change of lifestyle, the incidence of osteoporosis and neoplastic diseases is increasing. There are many internal fixation techniques for the spine, which can effectively relieve nerve compression, restore vertebral body height and spinal anatomy, and promote early mobilization. Currently, the most effective minimally invasive spinal surgery is kyphoplasty (PVP) and percutaneous vertebral surgery. Body kyphoplasty (PKP), this technique is under the monitoring of imaging equipment, percutaneous puncture, a trocar with a certain inner diameter passes through the pedicle or outside the root to puncture the human vertebral body, and injects bone cement and other materials to achieve augme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/88
CPCA61B17/8805
Inventor 李朝阳崔永顺刘伟铭吕维加
Owner 山东明德生物医学工程有限公司
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