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Adipose tissue cutting device

A cutting device and adipose tissue technology, applied in the directions of hypodermic injection devices, suction containers, suction devices, etc., can solve the problems of unstable cutting effect, increased risk, easy omission, etc., and achieve the effect of avoiding incomplete disinfection

Pending Publication Date: 2020-10-16
西安碑林童颜堂医院 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although liposuction with a small-diameter liposuction tube has many advantages, the content of ADSCs in the aspirated fat particles is low. The reason may be related to the fact that ADSCs are mainly distributed around the interstitial blood vessels and fascial connective tissue of adipose tissue. The tissue of blood vessels and fascia connective tissue is relatively dense and tough, which leads to a significantly lower content of ADSCs in the fat obtained from the small-caliber liposuction tube than that in the donor area and lack of extracellular matrix (including fascia connective tissue, interstitial tissue, etc.). blood vessels, etc.), even if extracellular matrix is ​​obtained, due to its characteristics, it is easy to form a network, resulting in a relatively large volume and difficult to inject
[0006] The current application number is: 201910125174.3, the patent name is an all-in-one machine for in vitro fine particle fat preparation, which discloses a device that uses a large-diameter liposuction tube to suck fat, and then cuts fat through a cutting device. This device has high liposuction efficiency and is easy to transplant. The survival rate of post-fat is high, which can solve the above technical problems. However, further research on this device found that the cutting effect of the cutting part is unstable. The fat particles after cutting are large and small. Moreover, the equipment is bulky, and there are many places that need to be sterilized, which is prone to omissions, causing fat pollution, and the cost of disinfection is high; moreover, there are many places where fat passes through, which will inevitably cause further loss of fat; Take it out from the human body, transfer it to the equipment for processing, and transfer it back after the processing is completed. For the transfer process, it is easy to cause pollution and increase the risk

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Please refer to figure 1 , an adipose tissue cutting device, comprising a pushing part and a cutting part;

[0039] The pusher includes a cylinder, a piston and a push rod; the cylinder includes a suction port and a first push port, the piston is arranged in the cylinder and cooperates with the inner wall of the cylinder, and the push rod drives the piston to move in the cylinder And extend the first push port;

[0040] The cutting part is arranged between the suction port and the piston; the cutting part includes a cutting column and a plurality of rods, the plurality of rods are staggered to form a mesh part, and the cutting columns are arranged at the intersection of the rods.

[0041] The diameter of the cutting piece is 3cm, the maximum width of the rod body is 1mm, and the distance between the adjacent rod bodies is 2mm;

[0042] The section of the rod body is triangular, and the edge of the rod body is sharpened.

[0043] The cutting part is a triangular pyramid...

Embodiment 2

[0050] Please refer to figure 2 , an adipose tissue cutting device, comprising a pushing part and a cutting part;

[0051] The pusher includes a cylinder, a piston and a push rod; the cylinder includes a suction port and a first push port, the piston is arranged in the cylinder and cooperates with the inner wall of the cylinder, and the push rod drives the piston to move in the cylinder And extend the first push port;

[0052] The cutting part is arranged between the suction port and the piston; the cutting part includes a cutting column and a plurality of rods, the plurality of rods are staggered to form a mesh part, and the cutting columns are arranged at the intersection of the rods.

[0053] The diameter of the cutting member is 3cm, the width of the rod body is 0.3mm, and the distance between the adjacent rod bodies is 1mm;

[0054] The barrel also includes a second push port, the second push port is provided with the same piston and push rod as the first push port;

...

Embodiment 3

[0064] Please refer to image 3 , an adipose tissue cutting device, comprising a pushing part and a cutting part;

[0065] The pusher includes a cylinder, a piston and a push rod; the cylinder includes a suction port and a first push port, the piston is arranged in the cylinder and cooperates with the inner wall of the cylinder, and the push rod drives the piston to move in the cylinder And extend the first push port;

[0066] The cutting part is arranged between the suction port and the piston; the cutting part includes a cutting column and a plurality of rods, the plurality of rods are staggered to form a mesh part, and the cutting columns are arranged at the intersection of the rods.

[0067] The diameter of the cutting part is 3cm, the width of the rod body is 1mm, and the distance between the adjacent rod bodies is 1.5mm;

[0068] The adipose tissue cutting device also includes a connecting head. There are two sets of pushers, and the suction ports of the two sets of pu...

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Abstract

The invention relates to the technical field of tissue engineering, in particular to an adipose tissue cutting device. The device comprises a pushing piece and a cutting piece; the pushing piece comprises a cylinder body, a piston and a push rod; the cylinder body comprises a suction inlet and a first pushing opening, the piston is arranged in the cylinder body and matched with the inner wall of the cylinder body, and the push rod drives the piston to move in the cylinder body and extend out of the first pushing opening; the cutting piece is arranged between the suction inlet and the piston; and the cutting piece comprises a cutting column and a plurality of rod bodies, the rod bodies are arranged in a staggered mode to form a net-shaped part, and the cutting column is arranged at the intersection point of the rod bodies. Through the arrangement of the cutting piece, when autologous fat is transplanted, adipose tissue sucked from the suction inlet can penetrate through the cutting piece to be cut, the size of the adipose tissue can be controlled by controlling the size of the gap of the net-shaped part formed by the multiple rod bodies, and fat cutting is achieved; and the device as a whole can be used as a disposable medical supply.

Description

technical field [0001] The invention relates to the technical field of tissue engineering, in particular to an adipose tissue cutting device. Background technique [0002] Autologous fat has been widely used in clinical practice due to its rich sources, convenient material collection, no rejection, simple operation, good filling shape, no disease infection, and no scar left after surgery. Common means of wound repair. But its transplant survival rate, especially the uncertainty of long-term survival is still the main obstacle limiting its application. Improving the survival rate of transplanted fat, especially the long-term survival rate, is still an urgent problem to be solved. A large number of clinical studies have shown that currently only 20%-30% of the volume of transplanted adipose tissue can be retained. [0003] Studies have shown that in the early stage of transplantation, adipose tissue is in a state of ischemia and hypoxia, relying on the surrounding tissue fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/00
CPCA61M1/67A61M1/88
Inventor 吴志新董玥娜
Owner 西安碑林童颜堂医院