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Magnetic composite mesh for assisting urination and preparation method thereof

A mesh and magnetic technology, applied in the field of biomedical materials, can solve problems such as insufficient pressure of artificial detrusor, and achieve the effect of high coercivity

Active Publication Date: 2022-08-09
TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a magnetic composite mesh for assisting urination and its preparation method to solve the technical problem of insufficient pressure of the artificial detrusor muscle in the prior art

Method used

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  • Magnetic composite mesh for assisting urination and preparation method thereof
  • Magnetic composite mesh for assisting urination and preparation method thereof
  • Magnetic composite mesh for assisting urination and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0047] In one embodiment of this application, such as figure 1It is shown, providing a preparation method for auxiliary urination magnetic composite mesh, which includes:

[0048] S1. Obtain unlagulated iron magnetic particles and composite mesh, respectively;

[0049] S2. Magnetize the ferromagnetic particles to get the magnetized magnetized ferromagnetic particles after being magnetized;

[0050] S3. Plug it in the magnetized iron magnetic particles and the composite mesh, and then solidify the first to obtain a magnetic composite mesh that can apply normal urination pressure to the filling bladder.

[0051] In some optional embodiments, such as figure 2 The preparation method of the non -magnetized iron magnetic particles includes:

[0052] S101. Planet mixes are used to bond the bonded iron boron rare earth magnetic powder and polymailing siliconane resin to obtain an undisclosed iron magnetic mixture;

[0053] S102. The unskilled iron magnetic mixture is second cured to obtai...

Embodiment 1

[0066] A magnetic composite mesh that assists urinating, the magnetic composite mesh includes magnetized stone magnetic particles and composite mesh; the magnetic ferromagnetic particles embedded into the grid of the surface of the composite mesh to form a flexible magnetic control covering layer;

[0067] The flexible magnetic control layer fits the outer membrane layer on the inside of the bladder to act as an artificial urine muscle that applies normal urination pressure under the condition of the gradient magnetic field.

[0068] Magnetic ferromagnetic particles include polymersal siliconane resin and bonding of iron boron boron rare earth magnetic powder. The volume score of rare earth permanent magnet material powder accounts for 40 % of the volume of magnetized iron magnetic particles. The size of the particle size is 5 μm, and the model of polymailing siliconane resin (PDMS resin) is Sylgard 184.

[0069] The magnetized stone magnetic particles are Sil-Poxy TM The method o...

Embodiment 2

[0084] The difference between Example 2 and Example 1 is compared. The difference between Example 2 and Example 1 is::

[0085] The volume score of rare earth permanent magnet materials accounted for 38 % of the volume of magnetized iron magnetic particles.

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Abstract

The invention relates to the field of biomedical materials, in particular to a magnetic composite mesh for assisting urination and a preparation method of the magnetic composite mesh. The magnetic composite mesh comprises magnetized ferromagnetic particles and a composite mesh; the magnetized ferromagnetic particles are embedded into grids of the composite mesh to form a flexible magnetic control covering layer; the flexible magnetic control covering layer is attached to an outer membrane layer on the inner side of the bladder and used for serving as an artificial detrusor muscle capable of applying normal urination pressure under the condition of a gradient magnetic field. The method comprises the following steps: respectively obtaining non-magnetized ferromagnetic particles and a composite mesh; the ferromagnetic particles are magnetized, and magnetized ferromagnetic particles are obtained after magnetization; bonding the magnetized ferromagnetic particles and the composite mesh, and then performing first curing to obtain a magnetic composite mesh capable of applying normal urination pressure; by adopting the magnetic composite mesh sheet comprising the magnetized ferromagnetic particles and the composite mesh sheet, the pressure of the artificial detrusor muscle can be effectively ensured to accord with the urination pressure of the bladder of a human body.

Description

Technical field [0001] This application involves the field of biomedical materials, especially a magnetic composite mesh and its preparation methods that assist urinating. Background technique [0002] Bladder dysfunction (UAB) will cause the urine muscle to contract weakness, which will cause symptoms of urination, difficulty in urination, slow urination, intermittent urination, urination drops, extension of bladder empty time, and incomplete bladder empty exhaust. 10 % to 20 %, and the incidence of age will gradually increase. At present, UA is divided into four types: muscle -based, neurological, characteristic, and medical derivative. The existing treatment techniques for UABs such as intermittent urination, intended adsmine nerve drug treatment, and discharge of bladder outlet obstruction surgery all exist in it. Limitation cannot be applied to all types of UAB, and may even be generated by complications. [0003] In recent years, many studies have focused on the symptoms of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/18A61L27/02A61L27/50
CPCA61L27/18A61L27/025A61L27/50A61L2430/30C08L75/04C08L83/04Y02A50/30
Inventor 凌青臧剑锋刘继红吴清扬王佳鑫
Owner TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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