Adjustable high-pressure-expansion balloon bag

Abstract

The invention discloses an adjustable high-pressure-expansion balloon bag which comprises a non-airtight balloon bag body and an expandable balloon. The non-airtight balloon bag body is provided with a first injection port. A first catheter communicating with the non-airtight balloon bag body is connected to the first injection port. The expandable balloon is provided with a second injection port. A second catheter communicating with the expandable balloon is connected to the second injection port. The non-airtight balloon bag body wraps the expandable balloon. The first catheter sleeves the second catheter. The non-airtight balloon bag body and the expandable balloon are jointly placed into a bone fracture part. The adjustable high-pressure-expansion balloon bag has the advantages that the non-airtight balloon bag body is combined with the expandable balloon, so that the expandable balloon is protected effectively and the surgery safety is improved; the control power of the non-airtight balloon bag body over the expansion of the expandable balloon is enhanced, and the non-airtight balloon bag body can be expanded thoroughly at the same time; and in addition, the surgery procedures are reduced, the surgery risks are reduced, and the surgery time is reduced.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an adjustable high-pressure dilatable balloon bag. Background technique [0002] At present, the best methods to deal with vertebral compression fractures are mainly percutaneous vertebroplasty and percutaneous kyphoplasty, among which vertebroplasty is used more and more widely. Improvements to vertebroplasty have continued since the first percutaneous vertebroplasty began in 1984, and percutaneous vertebroplasty has long been based on the establishment of a channel and the introduction of bone cement (such as polystyrene). Methyl methacrylate (PMMA) enters the vertebral body to provide sufficient support between the trabecular bones in the vertebral body, so as to ensure that the diseased vertebra will no longer suffer from compression fractures and pain. However, this type of operation still has uncontrollable bone cement leakage, which easily causes complications a...

AI Technical Summary

Problems solved by technology

[0004] However, in addition to the function of restoring the height of the vertebral body, the above-mentioned expandable bone expansion balloon also has some unavoidable defects:

[0005] Defect 1. Most of the expandable bone expansion balloons are made of polyether polyurethane and other materials, which are tough, strong, and deformable

In the case of balloon expansion, such bone spurs are likely to cause rupture of the balloon capsule and leakage of contrast medium.

However, most contrast agents need to be tested for iodine before use. If the outflowing contrast agent encounters patients who fail the iodine test, certain complications will occur and the risk of surgery will increase;

[0006] Deficiency 2: The safety of bone cement filling after balloon expansion is lower than the risk of leakage caused by direct injection of bone cement, but there is still a risk of bone cement leakage, and it cannot reduce bone cement like capsule products The leakage rate

Because the filling device proposed in this patent is not a closed device, this pressure expansion effect cannot be achieved

It just covers the bone cement, but it does not have a pressure filling device to expand and expand. It is impossible to expand and support the vertebral body by pushing and delivering the bone cement. The capsular bag itself has holes, and it is impossible to truly fill it with bone cement and expand it like a balloon, and the strength of this type of bone cement delivery device to expand the capsular bag is far inferior to that of an inflatable balloon. Distraction strength, i.e. final vertebral body height cannot achieve true recovery

[0010] Deficiency 2, because it is impossible to expand the filling device with strong pressure, especially in the case of vertebral body compression fractures that have lasted a little longer (but not old fractures) or the degree of osteoporosis is not serious, the peripheral wall pocket is more difficult to Well cemented and propped

Too much resistance, strong support will cause certain surgical risks, and eventually lead to insufficient bone cement filling and poor treatment effect

[0011] Defect 3, the pouch patent currently does not have a good dispersion effect

[0012] Therefore, both pouch and balloon products have their own advantages and effects, but they all have certain defects, and the safety cannot be realized at a higher level.

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