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Balloon for vertebroplasty and medical device

A medical device and plastic surgery technology, applied in the field of medical devices, can solve the problems of bone cement leakage, poor biocombination, loose connection of intervertebral disc tissues, etc., and achieve the effect of preventing leakage and dispersion

Inactive Publication Date: 2021-01-05
THE SECOND HOSPITAL AFFILIATED TO WENZHOU MEDICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is still a certain probability of bone cement leakage during surgery. In theory, bone cement leakage may compress nerve roots or spinal cord
[0005] In addition, the biological combination of bone cement and human tissue is not good, after a period of support, the connection with the original intervertebral disc tissue is not tight and not firm enough

Method used

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  • Balloon for vertebroplasty and medical device
  • Balloon for vertebroplasty and medical device
  • Balloon for vertebroplasty and medical device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] like figure 1 , figure 2 As shown, a balloon for intervertebral disc surgery includes a compressed, collapsed or folded balloon body 1, a first cavity 101 is provided inside the balloon body 1, and a surface of the balloon body 1 is provided There is a first injection port 102 communicating with the first cavity 101, and the balloon body 1 can be expanded after injecting a medium into the first cavity 101 through the first injection port 102;

[0039] After the balloon body 1 is inflated, it has a second cavity 103 that runs through the balloon body 1, and the balloon body 1 is provided with a medium access channel 104 that communicates with the second cavity 103. The balloon body 1 The surface is provided with a second injection port 105 communicating with the medium inlet channel 104 .

[0040] The first cavity 101 is used to inject bone cement. After the bone cement is injected, the balloon expands, and the expanded balloon is a columnar shape with a cross-section...

Embodiment 2

[0053] like image 3 Shown, a kind of medical device that is used for intervertebral disc plastic surgery comprises the balloon as described in embodiment 1, and the first catheter 2 communicates with the first injection port 102 of the balloon; The second catheter 3 communicates with the balloon's The second injection port 105 communicates. Bone cement is injected into the first cavity 101 through the first catheter 2 , and an osteogenic and / or osteoinductive material is injected into the second cavity 103 through the second catheter 3 .

[0054] Osteogenic and / or osteoinductive materials specifically include living cells with osteogenic ability such as bone marrow cells and / or osteoinductive proteins such as demineralized bone matrix, bone morphogenetic proteins, growth factors, etc. one or more of .

[0055] like Figure 4 As shown, the first conduit 2 is detachably connected to the third conduit 4 , and the second conduit 3 is detachably connected to the fourth conduit ...

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Abstract

The invention belongs to the field of medical instruments, and particularly relates to a balloon for vertebroplasty and a medical device. The balloon provided by the invention comprises a compressed,collapsed or folded balloon main body; the balloon main body is internally provided with a first cavity; the first cavity is used for injecting bone cement, the bone cement is filled to enable the balloon to be supported between intervertebral disc tissues after being expanded and solidified, and the balloon can prevent the problem of leakage and dispersion of the bone cement; after the balloon main body is expanded, a second cavity penetrating through the balloon main body is formed; the second cavity is used for injecting a material with an osteogenesis effect and / or an osteoinduction effect, and after the balloon is expanded through bone cement filling, the material with the osteogenesis effect and / or the osteoinduction effect is injected into the second cavity penetrating through the balloon main body through a second injection opening; and the material injected into the second cavity forms osteoblasts in the intervertebral disc inner cavity or induces local cells of a human body to differentiate to form the osteoblasts, so that the balloon is firmly anchored between intervertebral discs.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a balloon and a medical device for intervertebral disc plastic surgery. Background technique [0002] The earliest and first report of percutaneous bone cement discoplasty (PCD) was in 2015. P.P. Varga from Hungary (Hungary) first reported and named it in Orthopade. [0003] PCD is an effective minimally invasive approach for the treatment of axial low back pain and dysfunction caused by severe lumbar degenerative disc disease. At the same time, the deformity of the lumbar spine can be corrected after surgery, and the effect of indirect decompression of the intervertebral foramen can be achieved. It is especially suitable for elderly patients who are not easy to perform open surgery. Postoperatively, the sacral inclination angle and pelvic inclination angle were significantly reduced, and the lumbar segmental and overall kyphosis, intervertebral disc and intervertebra...

Claims

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Application Information

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IPC IPC(8): A61B17/88A61B17/70A61M25/00A61M25/10
CPCA61B17/7097A61B17/8855A61B2017/00831A61M25/0026A61M25/0043A61M25/10A61M2025/006A61M2025/1086A61M2210/02A61M2210/005
Inventor 吴爱悯徐晖田乃锋武垚森许聪窦海成朱思品周凯亮陈教想金海明
Owner THE SECOND HOSPITAL AFFILIATED TO WENZHOU MEDICAL COLLEGE
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