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Sterilization bolt

A technology of guide rods and films, applied in the field of sterilization plugs, can solve the problems of high cost and high requirements, and achieve the effects of low cost, high success rate of sterilization, and simple preparation

Inactive Publication Date: 2008-08-27
朱东波 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the section of the protrusion on the guide rod is a solid plane, it is not easy to deform along the axial direction of the guide rod, so the requirements for the shape memory alloy material and its processing are very high, so the cost remains high

Method used

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  • Sterilization bolt

Examples

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Effect test

Embodiment 1

[0012] Example one: such as figure 1 As shown, the sterilization plug of the present invention is made of TiNi alloy, wherein the weight percentage of Ni is 56%, and the balance is Ti. The sterilization plug includes a guide rod 1 and four radial brackets 2 connected around the guide rod 1, and a film 5 is adhered to the bracket 2. The cross section of the guide rod 1 and the film 5 adhered to the support 2 is round. The guide rod 1 has a length of 4 mm and a diameter of 0.2 mm, and each radial stent 2 has a length of 1 mm and a thickness of 0.1 mm. On the surface of the guide rod 1 at least one side close to the bracket 2 is provided with a groove 3 surrounding the guide rod 1. The length of the groove 3 is 1 mm, and the diameter of the guide rod 1 where the part of the groove 3 is located is 0.1 mm. The film 5 is adhered to the stent 2 and its size is adapted to the radial stent 2. The stent 2 can be folded into the groove at a softening temperature of 10°C. After the sterilizat...

Embodiment 2

[0013] Embodiment 2: The sterilization plug of the present invention is made of TiNi alloy, wherein the weight percentage of Ni is 56.5%, and the balance is Ti. The sterilization plug includes a guide rod 1 and six radial stents 2 connected around the guide rod 1, and a film 5 is adhered to the stent 2. The cross section of the guide rod 1 and the film 5 adhered to the support 2 is round. The guide rod 1 has a length of 6 mm and a diameter of 0.5 mm, and each radial stent 2 has a length of 2 mm and a thickness of 0.3 mm. On the surface of the guide rod 1 at least one side close to the bracket 2 is provided with a groove 3 surrounding the guide rod 1. The length of the groove 3 is 2 mm, and the diameter of the guide rod 1 where the part of the groove 3 is located is 0.2 mm. The film 5 is adhered to the stent 2 and its size is adapted to the radial stent 2. The stent 2 can be folded into the groove at a softening temperature of 10°C. After the sterilization plug is placed in the int...

Embodiment 3

[0014] Embodiment 3: The sterilization plug of the present invention is made of TiNi alloy, wherein the weight percentage of Ni is 57.3%, and the balance is Ti. The sterilization plug includes a guide rod 1 and six radial stents 2 connected around the guide rod 1, and a film 5 is adhered to the stent 2. The cross section of the guide rod 1 and the film 5 adhered to the support 2 is round. The guide rod 1 has a length of 10 mm and a diameter of 1.8 mm, and each radial stent 2 has a length of 3 mm and a thickness of 0.5 mm. On the surface of the guide rod 1 at least one side close to the bracket 2 is provided with a groove 3 surrounding the guide rod 1. The length of the groove 3 is 3 mm, and the diameter of the guide rod 1 where the part of the groove 3 is located is 1.3 mm. The film 5 is adhered to the stent 2 and its size is adapted to the radial stent 2. The stent 2 can be folded into the groove at a softening temperature of 10°C. After the sterilization plug is placed in the in...

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Abstract

The invention discloses a contraceptive plug, which comprises a guide rod, at least one radial-pattern supporter windingly connected with the guide rod, and a film attached to the supporter. The guide rod can be easily placed in the interstitial portion of fallopian tube, the top end of the radial-pattern supporter can be embedded in uterine muscles to prevent the contraceptive plug from moving and falling, and the film attached to the supporter can efficiently prevent sperms entering the fallopian tube, so as to achieve contraceptive effect and achieve high success rate of contraception. Because the radial-pattern supporter is deformable compared with bumps with solid planar cross section, therefore, the inventive contraceptive plug has good flexibility.

Description

Technical field [0001] The invention relates to a sterilization plug, particularly a sterilization plug placed in the interstitial part of the fallopian tube. Background technique [0002] Hysteroscopic tubal sterilization does not require surgery on the human abdomen, avoids abdominal incisions and internal organ damage, and has broad application prospects. Chinese Patent 200520051371.9 discloses a sterilization plug made of shape memory alloy, which includes a guide rod and at least one protrusion surrounding the guide rod. Its advantages are high sterilization success rate, simple placement, and small side effects on the human body. However, because the protruding section on the guide rod is a solid plane and is not easily deformed along the guide rod axial direction, the requirements for the material and processing of the shape memory alloy are very high, so the cost remains high. Summary of the invention [0003] The purpose of the present invention is to provide a steriliz...

Claims

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Application Information

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IPC IPC(8): A61F6/22
Inventor 朱东波徐大宝刘芳
Owner 朱东波
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