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A kind of periosteum transplantation instrument

A device and periosteum technology, applied in the field of periosteum transplantation devices, can solve the problems of donor site destruction, bleeding repair, etc.

Inactive Publication Date: 2017-12-12
WINNTI MEDICAL TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the difficulty in obtaining and fixing autologous free periosteum limits the clinical application of this technology. The above steps need to be operated with surgical tools. Due to the particularity of the periosteum, the convenience and flexibility of the surgical tools are high, and the operation is not good. Tools can cause damage to the donor site, bleeding and slow repair, and even complications and sequelae

Method used

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  • A kind of periosteum transplantation instrument
  • A kind of periosteum transplantation instrument
  • A kind of periosteum transplantation instrument

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0040] Such as figure 1 and Figure 4 As shown, the present invention provides a periosteum grafting instrument, comprising at least one guide pin 3, a positioning block 1 and an annular cutter 2;

[0041] The positioning block 1 is a cylinder, and the positioning block 1 is provided with through holes 9 equal in number to the guide pins 3, and the through holes 9 and the axes of the positioning block 1 are parallel to each other;

[0042] The first end of the guide pin 3 is a needle tip, and the guide pin 3 moves through the through hole 9;

[0043] The annular cutter 2 is a sleeve structure, and is movably sleeved on the outside of the positioning block 1. The first end of the annular cutter 2 is provided with an incision for cutting, and is arranged on the same side as the first end of the guide pin 3. The incision The place is flat end 4.

[0044] The periosteum grafting instrument described above is used for cutting the periosteum. Specifically, the needle tip of the ...

no. 2 example

[0051] Such as figure 2 , Figure 4 and Figure 5 As shown, the present invention provides a periosteum grafting instrument, comprising at least one guide pin 3, a positioning block 1 and an annular cutter 2;

[0052] The positioning block 1 is a cylinder, and the positioning block 1 is provided with through holes 9 equal in number to the guide pins 3, and the through holes 9 and the axes of the positioning block 1 are parallel to each other;

[0053] The first end of the guide pin 3 is a needle tip, and the guide pin 3 moves through the through hole 9;

[0054] The annular cutter 2 is a sleeve structure, and is movably sleeved on the outside of the positioning block 1. The first end of the annular cutter 2 is provided with an incision for cutting, and is arranged on the same side as the first end of the guide pin 3. The incision The place is jagged 5.

[0055] The second end of the ring cutter 2 is provided with a handle 6 , and the handle 6 is provided with an avoidance...

no. 3 example

[0059] Such as image 3 and Figure 4 As shown, the present invention provides a periosteum grafting instrument, including three guide pins 3, a positioning block 1 and a wrench;

[0060] The positioning block 1 is a cylinder, and the positioning block 1 is provided with three through holes 9, and the through holes 9 and the axes of the positioning block 1 are parallel to each other;

[0061] The first end of the guide pin 3 is a needle tip, and the guide pin 3 moves through the through hole 9;

[0062] The positioning block 1 is provided with a wrench surface 8 which cooperates with a wrench, and the wrench drives the positioning block 1 to rotate by cooperating with the wrench surface 8 .

[0063]The periosteum grafting instrument described above is used to separate bone and bonded periosteum and bone. Specifically, after cutting the periosteum and bone, the needle tip of a guide pin is fixed on the periosteum, and then a positioning block is set on the outer cover of the...

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PUM

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Abstract

The invention discloses a periosteum transplanting instrument which comprises at least one guide pin, a locating block and an annular cutter. The locating block is a cylinder and is provided with through holes with the same number as the guide pins, and the through holes are parallel to the axis of the locating block. The first ends of the guide pins are pin tips, the guide pins movably penetrate the through holes, the annular cutter is of a sleeve structure and movably sleeves the outer side of the locating block, an incision position for cutting is located at the first end of the annular cutter and positioned on the same side as the first ends of the guide pins, and the locating block and the guide pins are matched to achieve the locating effect. The annular cutter cuts a periosteum along with the locating block, and the periosteum transplanting instrument is convenient to use and simple in structure.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a periosteum transplantation instrument. Background technique [0002] Bone is composed of periosteum, bone substance and bone marrow, in addition to rich blood vessels and nerve distribution. Bone is the main component of bone, composed of bone tissue, divided into cortical bone and cancellous bone. Bone compact is distributed on the surface of the bone, thick and dense, composed of closely arranged bone plates, and has strong compression and torsion resistance. The cancellous bone is located inside the bone and is composed of needle-like or sheet-like bone trabeculae, which are arranged in the direction of gravity and the tension direction of muscle traction. Bone marrow is located in the space between the marrow cavity and the cancellous bone, and is composed of hematopoietic cells and reticular connective tissue. The periosteum attaches to the outer surface of the cortic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/3209A61B17/32A61B17/14A61B17/16
CPCA61B17/14A61B17/1604A61B17/17A61B17/32A61B17/3209A61B2017/564
Inventor 唐康来
Owner WINNTI MEDICAL TECH SHANGHAI CO LTD