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Oriented dilatation balloon and oriented dilatation device

A technology of expansion device and balloon, which is applied in dilators, medical science, catheters, etc., can solve the problems of increasing time and increasing difficulty of surgery

Inactive Publication Date: 2009-06-24
邹德威
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method will increase the difficulty of the operation, increase the time, and bring more pain to the patient

Method used

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  • Oriented dilatation balloon and oriented dilatation device
  • Oriented dilatation balloon and oriented dilatation device
  • Oriented dilatation balloon and oriented dilatation device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0038] see Figure 5 As shown, the present invention provides a directional dilatable balloon 10, which has a balloon body 11 made of elastic material and an injection port 12 arranged on the balloon. Wherein the balloon 11 has a fixed balloon part 14 and an expanding balloon part 13 facing a predetermined orientation. The balloon 11 is formed such that the expanded balloon portion 13 facing a predetermined orientation on the balloon 11 is thinner than the fixed balloon portion 14 so that when pressure is injected into the balloon 11, the expanded balloon portion 13 faces toward The predetermined orientation expands outwardly, while the fixed balloon portion 14 substantially maintains its own shape. The broken lines shown at the ends of the injection port 12 indicate that the injection port can be extended to a desired length. The technique of introducing a balloon (airbag) into the human body through a catheter and injecting biomaterials into the balloon (airbag) is well kn...

no. 2 approach

[0045] Referring to Fig. 8 and Fig. 9, the present invention provides a directional dilatable balloon 20, which has a balloon body 21 made of elastic material and an injection port 22 provided on the balloon. Wherein the balloon 21 has a fixed balloon part 24 and an expanding balloon part 23 facing a predetermined orientation. The fixed balloon part 24 is formed by providing a reinforcing layer 25 on the balloon 21 corresponding to the fixed balloon part 24, so that when pressure is injected into the balloon 21, the expanded balloon part 23 faces the Expanding outwards in a predetermined direction, the fixed balloon portion 24 is constrained by the reinforcing layer 25 to substantially maintain its own shape. The working principle of the capsule in this embodiment is similar to that in the first embodiment, and will not be repeated here.

[0046] As an example, the reinforcing layer 25 and the bladder 21 are made of the same material, so that the cost in material selection ca...

no. 3 approach

[0056] see Figure 12 , the present invention provides a directional dilatable balloon 30, which has a balloon body 31 made of elastic material and an injection port 32 arranged on the balloon. The balloon 31 has a fixed balloon part 34 and an expanded balloon part 33 facing a predetermined orientation. The fixed balloon part 34 is constituted by disposing a restricting expansion member 35 on the part of the balloon 31 corresponding to the fixed balloon part 34, so that when the pressure is injected into the balloon 31, the expanded balloon part 33 is directed toward the fixed balloon part 31. The fixed balloon portion 34 is limited by the expansion limiting member 35 and basically maintains its own shape.

[0057] As an example, the restricting expansion member 35 includes a mesh braided layer made of non-elastic material, or, as another example, the restricting expansion member 35 includes a plurality of restricting strips or restricting wires 36 made of non-elastic materia...

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PUM

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Abstract

The invention provides a directional expanding saccule and a directional expanding device. The directional expanding saccule is used for directional expansion in human body and provided with a sac body and an injection port which is arranged on the sac body, wherein the sac body is provided with a fixed sac body part and an expanded sac body part which faces to the predetermined azimuth; the sac body is designed as follows: the expanded sac body part exceeds the shape of the expanded sac body and is expanded outwards towards the predetermined azimuth and the fixed sac body part is basically maintained in the shape of the fixed sac body part when pressure is injected into the sac body which is then expanded. The directional expanding saccule can be expanded towards the determined direction when biomaterials are injected, so that the biomaterials can also be injected into expected positions in vertebras only by introducing the saccule on an opening of a vertebral arch pedicle position on one side of the vertebras.

Description

technical field [0001] The invention relates to a balloon, in particular to a directional expansion balloon and a directional expansion device for treating spinal injuries by being implanted into the human spine through the pedicle. Background technique [0002] In the treatment of spinal injuries such as vertebral body compression fractures, such as senile osteoporotic vertebral body compression fractures, as a treatment method, holes can be made along the pedicles on both sides of the spine, and the catheter can be used to guide the human spine A balloon is introduced into the balloon to inject biomaterials (such as high molecular polymers) into the balloon as a support, and the vertebra compressed by the fracture will be stretched and restored to its original shape for treatment. This method has been widely used clinically, and it is called "capsular expansion vertebroplasty" in medicine. Wherein, before using the catheter 101 to inject biomaterials into the balloon, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M29/02A61M25/00A61B17/56
Inventor 邹德威
Owner 邹德威
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