Injectable screw fixation system for femoral neck fractures

A femoral neck fracture and screw fixation technology, applied in the field of medical devices, can solve the problems of inability to inject stem cells or platelet-rich plasma into the fracture site, repair and other problems, and achieve the effect of solving clinical technical obstacles, reducing the incidence and ensuring leakage.

Pending Publication Date: 2021-04-16
JIANGSU TAIZHOU PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the difficulty in the clinical treatment of these two types of technical methods is that it is impossible to effectively inject the obtained stem cells or platelet-rich plasma into the fracture site, so that they can directly and fully play the role of repair

Method used

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  • Injectable screw fixation system for femoral neck fractures
  • Injectable screw fixation system for femoral neck fractures
  • Injectable screw fixation system for femoral neck fractures

Examples

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0021] Such as figure 1 As shown, the embodiment discloses an injectable screw fixation system for femoral neck fractures, including a screw 1, a hollow guide rod 2 and a dual-channel high-pressure injection device. The screw 1 includes a nail body 1a and a nail seat 1b, The nail body 1a is used to be inserted into the bone. The interior of the nail body 1a is provided with a central through hole 1c. The outer wall of the entire section of the nail body 1a is provided with a nail external screw thread 1d. The side hole 1e connected to the hole 1c; the nail base 1b is integrally connected to the tail end of the nail body 1a, the inside of the nail base 1b is provided with a polygonal hole 1f for connecting a screwdriver, and the outer periphery of the nail base 1b is provided with a hollow guide rod 2 The external thread 1g of the nail seat; the front end of th...

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PUM

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Abstract

The invention discloses an injectable screw fixation system for femoral neck fractures, wherein the injectable screw fixing system comprises a screw, a hollow guide rod and a double-channel high-pressure injection device; the screw comprises a screw body and a screw seat, a central through hole is formed in the screw body, screw body external threads are arranged on the outer wall of the front section or the whole section of the screw body, and a side hole communicated with the central through hole is formed in the side wall of the front section of the screw body; the screw base is integrally connected to the tail end of the screw body, a polygonal hole is formed in the screw base, and screw base external threads are arranged on the periphery of the screw base; a guide rod internal thread is arranged at the front end of the hollow guide rod; a guide rod external thread is arranged at the rear end of the hollow guide rod; the double-channel high-pressure injection device comprises a three-way connector and two high-pressure injectors, the three-way connector is provided with two inlets and an outlet, the two inlets are connected with the two high-pressure injectors respectively, a control valve is arranged on the three-way connector, and the outlet is used for being connected with the rear end of the hollow guide rod. According to the invention, treatment liquid can be effectively injected into a fracture part, clinical technical obstacles are practically solved, and the operation curative effect is improved.

Description

technical field [0001] The invention relates to orthopedic instruments, in particular to an injectable screw fixation system for femoral neck fractures, belonging to the technical field of medical instruments. Background technique [0002] Femoral neck fracture is a common clinical orthopedic injury. The mechanical characteristics of the femoral neck and the anatomical particularity of the blood supply of the femoral head lead to clinical complications such as femoral head necrosis and fracture nonunion after femoral neck fracture. During surgery, doctors often choose suitable implants according to the type of fracture and the individual conditions of the patient. At present, the commonly used fixation methods include the use of multiple cannulated screws, compression screws, dynamic hip screws, and lateral plate composites. [0003] However, regardless of the treatment method, disastrous complications such as fracture nonunion and avascular necrosis of the femoral head afte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/68A61B17/34
Inventor 黄爱兵马小明周志勇魏嘉绪姜磊刘宇于情
Owner JIANGSU TAIZHOU PEOPLES HOSPITAL
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