• Title, Summary, Keyword: 보형물

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Evaluation of Usefulness of Image by Using New Compression Paddle for Mammoplasty Patient During Mammography (유방촬영 시 유방보형물 환자에 대한 새로운 압박대 적용의 유용성 평가)

  • Hong, Dong-Hee
    • Journal of radiological science and technology
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    • v.38 no.3
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    • pp.229-235
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    • 2015
  • Mammoplasty is currently increasing not only for cosmetic surgery, but as well as for the recovery after breast cancer surgery. The prostheses inserted into the breasts of women who have undergone mammoplasty, hide the breast substances and it is becoming increasingly difficult to diagnose breast disease, and fear is growing by the concern of the prostheses bursting by the strap. So we want to develop a strap applicable to women with prostheses inserted, to determine the usefulness, and we also want to compare the utility by comparing the total area of the Inner and Outer parts of the breast and Posterior Nipple Line (PNL), after obtaining video by applying the existing strap and the developed strap to phantom of the prostheses inserted patient shape. When the pressure by the developed pressure, the total area increased by 10.09% from CC view to $9,813.797mm^2$, 3.88% from CC-ID view to $7,621.531mm^2$, PNL increased by 3.41% from CC view to $90.916mm^2$, 1.64% from CC-ID view to$75.357mm^2$. And the breast tissue of the thorax side increased 3.53% from CC view to $177.725mm^2$, and 6.57% from CC-ID view to $152.510mm^2$, and we could verify that the prostheses were completely eliminated in the CC-ID images of developed strap, compared with the existing strap.

Design and Fabrication of Nasal-Implant-Shaped Scaffold and Regeneration of Nasal Cartilage Tissue for Rhinoplasty (코 성형을 위한 코 보형물 형태의 인공지지체 설계 및 제작과 코 연골조직의 재생)

  • Jung, Jin-Woo;Jang, Jin-Ah;Shim, Jin-Hyung;Kim, Sung-Won;Cho, Dong-Woo
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.36 no.11
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    • pp.1111-1117
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    • 2012
  • Implants for rhinoplasty should ideally be biocompatible and possess long-term stability after implantation. Silicone implants are most widely used for rhinoplasty. However, these implants suffer from problems related to high extrusion and infection rates. To minimize these complications, we propose a novel augmentation rhinoplasty technique using tissue engineering. To demonstrate its feasibility, a nasal-implant-shaped scaffold was designed using commercialized CAD software and fabricated using a Multi-head Deposition System, which is a solid freeform fabrication system that dispenses material. In vitro cell proliferation and chondrogenic differentiation tests were carried out using nasal septal chondrocytes.

Development and Evaluation for the Micro-Movement Structure of Interspinous (척추극돌간 미세움직임 재현 보형물의 개발 및 평가)

  • Park, Joon-Sik;Seo, Tae-Il;Bae, Jong-Suk;Yoon, Gil-Sang
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.15 no.3
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    • pp.127-131
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    • 2006
  • Existing orthopedic implants such as pedicle screw and spinal cage were designed to fix the spinal structure. But, nowadays, physicians want to rehabilitate there original functions. To achieve this request, we studied micro-movable structure for interspinous. As a first step, we designed interspinous structure by 3D CAD to join each spinous processes. Next, we simulate it with various factors such as the thickness of micro-movement structure and the design of clip. At last, we performed static compressive test to satisfy the failure load of 339N and dynamic endurance test of 1.2M cycle. As a result, we developed interspinous implant and did several surgery to evaluated its satisfaction.

Evaluation of Breast Dose by Breast Pressure Thickness of Breast Prosthesis Insertion (보형물 삽입 유방의 압박 두께에 따른 유방 선량 평가)

  • Lee, Hyeon-Yong;Kim, Ji-Soo
    • Journal of radiological science and technology
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    • v.43 no.6
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    • pp.469-473
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    • 2020
  • Breast cancer is growing rapidly year by year and has the highest incidence since 2001. As a result, the interest in mammography for early detection of breast cancer is increasing. However, mammography is accompanied by radiation exposure and therefore it is necessary to reduce exposure dose through appropriate test conditions. The significance of this study is that breast dose studies, which were limited to ordinary women, were applied to breast implant patient. Using MCNP simulation, the phantom with prosthesis inserted was developed to compare dose by tube voltage by pressure thickness. In addition phantom without prostheses has higher dose than phantom with prostheses. If these results were used as basic data, it would be possible to recommend test condition guideline only for breast implant patients.

3D Printing Application Cases for Medical Service (의료 서비스를 위한 3D 프린팅 기술 적용 사례)

  • Woo, Sung-hee;Kwak, Ji-yeon;Hong, Sung-won
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.988-991
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    • 2015
  • 3D printing technology is instrument that can create real objects in three-dimensional space, as printed on paper, if the three-dimensional designs are made. 3D printing technology has been recently used in various field of medicine, and also biomedical application of three dimensional printing technology remains one of the most important research topics until now. 3D printing technology is causing a revolutionary change in the overall automotive manufacturing, aerospace, marine, medical and so on. The medical industry applications of current 3D printer are a virtual simulation, custom medical implants manufactured, practice of medical personnel. In this study, we analyzed 3D printing technology and application cases for medical services.

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Capsular Flaps for Correcting Implant Palpability in Secondary Augmentation Mammoplasty (유방성형술의 재수술에서의 보형물 만져짐 교정을 위한 피막 피판)

  • Yoo, Gyeol;Lee, Paik-Kwon
    • Archives of Plastic Surgery
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    • v.36 no.6
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    • pp.767-772
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    • 2009
  • Purpose: Among reasons for reoperations in augmentation mammoplasty, palpable implant, due to thin skin is relatively common, but not easy to correct, especially if thin skin area is wide. The capsule around the implant is a physiologic response to foreign body, naturally formed, and suitable for use as a flap because of its high vascularity. Authors report that capsular flap is very effective and successful method for correction of implant palpability in secondary breast augmentation. Methods: From September 2007 to September 2008, the capular flaps were performed on 5 patients having palpable and wrinkling breast implants due to very thin skin among the cases on whom secondary augmentation mammaplasty had been performed. After the capsular flap was elevated according to thin skin area, the capsular flap was turned down or over to cover the thin skin area and made the thin skin area thick. Results: Post - implant palpable breast wrinkling had been successfully corrected by capsular flaps and breast implants were not palpable any more during the follow - up period(average 9.2 months). All patients who suffered from deformed breast were satisfied. Conclusion: Authors suggest that the capsular flap is a ideal, effective and useful method in management of implant palpability.

Anatomical Repair of Taussig-Bing Anomaly with Interrupted Aortic Arch and Intramural Left Coronary Artery (벽속관상동맥 기형과 대동맥궁 단절을 함께 동반한 Taussig-Bing심기형의 해부학적 완전교정)

  • 성시찬;김시호
    • Journal of Chest Surgery
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    • v.34 no.10
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    • pp.775-780
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    • 2001
  • We report a case of the successful anatomical correction of the Taussig-Bing anomaly associated with the interrupted aortic arch and intramural left coronary artery for an 38 day-old infant Aortic arch and neoaortic reconstructions were conducted without any prosthetic or pericardial patch. Intramural left coronary was separated from right one after partial detachment of aortic commissure and both coronary artery buttons were transferred separately to the proximal main pulmonary artery(nee-aorta). Delayed sternal closure was done 3 days after the operation and hospital discharge was delayed for a month because of postoperative pneumonia. Now he is 5 months old and free of symptoms and cardiac drugs.

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Algorithm for Fabricating 3D Breast Implants by Using MRI and 3D Scan Data (MRI와 3D 스캔 데이터를 이용한 3D 프린팅 유방 인공보형물의 제작 알고리즘)

  • Jeong, Young Jin;Choi, Dong Hun;Kim, Ku-Jin
    • Journal of Korea Multimedia Society
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    • v.22 no.12
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    • pp.1385-1395
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    • 2019
  • In this paper, we propose a method to fabricate a patient-specific breast implant using MRI images and 3D scan data. Existing breast implants for breast reconstruction surgery are primarily fabricated products for shaping, and among the limited types of implants, products similar to the patient's breast have been used. In fact, the larger the difference between the shape of the breast and the implant, the more frequent the postoperative side effects and the lower the satisfaction. Previous researches on the fabrication of patient-specific breast implants have used limited information based on only MRI images or on only 3D scan data. In this paper, we propose an algorithm for the fabrication of patient-specific breast implants that combines MRI images with 3D scan data, considering anatomical suitability for external shape, volume, and pectoral muscle. Experimental results show that we can produce precise breast implants using the proposed algorithm.