Animal Femur Surgical Positioning Fixture

A fixed frame, femur technology, applied in the direction of animal restraint equipment, medical science, veterinary surgery, etc., to reduce the surgical failure rate, ensure reliability and repeatability, and ensure accurate implementation.

Active Publication Date: 2022-08-09
HANGZHOU HUAMAI MEDICAL DEVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, this device is only suitable for animal tibial surgery, so it is necessary to develop a three-dimensional animal femur positioning and fixing device, focusing on the operability of small animal femur surgery, standardization, repeatability, and standardization of laboratory animal surgery requirements. Reliability is implemented in the technical procedures of controlled operation, and finally reflected in the operation results of animal experimental models

Method used

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  • Animal Femur Surgical Positioning Fixture
  • Animal Femur Surgical Positioning Fixture
  • Animal Femur Surgical Positioning Fixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] like Figure 1-2 The shown animal femur surgery positioning and fixing frame 100 includes a femur positioning and fixing arm 200 connected to the external fixation frame, and the elevating operating table 130 is used together with the animal femur surgery positioning and fixing frame 100 . The external fixing frame is a three-dimensional three-dimensional adjustable fixing frame. The three-dimensional three-dimensional adjustable fixing frame is composed of a horizontal axis, a vertical axis and a three-dimensional three-dimensional regulator 110 connecting the horizontal axis and the vertical axis. The femoral positioning and fixing arm 200 is provided with a femoral shaft positioning and fixing unit, a popliteal fossa positioning unit, a knee fixing unit and an ankle fixing unit. The femoral surgery positioning and fixing arm is used to define and fix the standard surgical position of the animal femur in femoral surgery. A small surgical environment operating platfor...

Embodiment 2

[0125] like Figure 32 shown is the use of a rigid external fixator (the so-called rigid external fixator is relative to the Figure 33 - Schematic diagram of mouse femoral fracture surgery for the flexible external fixator of Example 3). Six needles penetrate the mouse femur and anchor the root in place; the outer segments of three needles at each end of the femur are bent parallel to each other to the center to form a shoulder bridge; the fracture of the femur is generated by a bone breaker; it is coated with a light-cured flowable composite material The bridge was filled; the composite was cured with an LED light; the cured portion of the external fixator was removed after a few weeks with cut pins; then all remaining pins were spun out.

Embodiment 3

[0127] like Figure 33 Shown is a schematic diagram of a mouse femoral fracture surgery using a flexible external fixator. Six needles penetrated the mouse femur and were anchored in place at the root; three distal femoral needles and three proximal femoral needles were bent toward each other in parallel with three needles at their respective ends to form two end-cluster bypasses; They are each coated with light-curable flowable composite material and cured with LED lights; two elastic pins are placed and the two clusters at the two ends are connected step by step, that is, one position on each left end and each right end of the cured two ends by step-by-step connection of the light-cured flowable composite material. point; the right elastic pin is used to connect the right end faces of the two clusters, but only the proximal end is temporarily cured; the left elastic pin is used to connect the left end faces of the two clusters, but only the distal end is temporarily cured; t...

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Abstract

The invention discloses an animal femoral surgery positioning and fixing frame, comprising a femoral positioning and fixing arm, the femoral positioning and fixing arm is connected to an external fixing frame, and a popliteal fossa positioning unit, a femoral shaft positioning and fixing unit and an ankle are arranged on the femoral positioning and fixing arm. The fixation unit and the knee fixation unit, wherein the femoral shaft positioning pin, the femoral shaft positioning pin clip and the femoral shaft positioning needle seat in the femoral shaft positioning and fixing unit together form an elastic snap ring for positioning and fixing the femoral shaft. The present invention uses four anatomical positions (femoral shaft, popliteal fossa, knee and ankle) to position and fix the animal femur on the femoral positioning fixed arm, and the femoral surgical positioning and fixing arm defines the surgical standard position of the femoral solid object in the operation and fixes it, It has formed a small surgical environment operation platform for the three-dimensional standard image of femoral surgery, so as to ensure the implementation of femoral bone fixation needle puncture, standard surgical operation of fracture and segmental bone defect experimental models, repeatability and data reliability of experimental animal femoral surgery .

Description

technical field [0001] The invention relates to a special surgical instrument for medical experimental animal models, in particular for establishing experimental animal femoral fracture and femoral segmental bone defect models, and implementing femoral external fixation surgical techniques. Reproducible, bone fixation device for bone surgery to ensure percutaneous puncture anchoring of femoral external fixation, femoral fracture or segmental bone defect positioning digital surgery. Background technique [0002] Complications associated with the treatment of long bone fractures remain a major challenge for orthopaedic surgeons. Elucidating the mechanisms of bone healing and development, and subsequently altering these mechanisms to improve outcomes, often requires animal models as an intermediary between in vitro and human clinical studies. The mouse femur model is the most commonly used model in translational research, especially many laboratories around the world have ente...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61D3/00A61D1/00
CPCA61D3/00A61D1/00A61D2003/006
Inventor 王力平江涛
Owner HANGZHOU HUAMAI MEDICAL DEVICES CO LTD
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