• Title/Summary/Keyword: Repair technique

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Annular Plication Technique to Facilitate Sliding Annuloplasty in a Marfan's Syndrome Patient (말판 증후군 환자에서 승모판막 역류의 교정을 위해 시행된 슬라이드 판막륜 성형술 및 판막륜 주름 성형술)

  • Je, Hyoung-Gon;Lee, Jae-Won
    • Journal of Chest Surgery
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    • v.40 no.6 s.275
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    • pp.441-444
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    • 2007
  • Sliding annuloplasty has been used for mitral valve repair in conjunction with posterior leaflet quadrangular resection to avoid systolic anterior motion of the anterior leaflet of the mitral valve. Herein, we report on a case of successful mitral valve repair with using the annular plication technique to facilitate sliding annuloplasty and extensive quadrangular resection was also done for treating a Marfan's syndrome patient who had an extremely redundant leaflet and a severely dilated annulus.

Massive Rotator Cuff Tear Repair (광범위 회전근 개 파열의 봉합술)

  • Shin, Sang-Jin
    • Clinics in Shoulder and Elbow
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    • v.13 no.1
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    • pp.167-174
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    • 2010
  • Purpose: Anatomical repair of massive rotator cuff tear has been technically challenging because of medial retraction, muscle atrophy and fatty degeneration. Among several treatment options for massive rotator cuff tear, we reviewed rotator cuff repairs and investigated modalities for improvement of clinical outcomes, decreasing the re-tear rate, and increasing healing. Materials and Methods: Patient-related factors and rotator cuff-related factors were the two major groups of factors we considered when choosing a treatment plan. Results: Mobilization of a massive rotator cuff tear was increased by soft tissue release and by the interval slide technique. After meticulous soft tissue release, anatomical repair could be achieved. If the injury was not amenable to anatomical repair, alternative treatment options such as partial repair, the margin convergence technique and augmentation with a tenotomized biceps tendon were considered. Many reports of massive rotator cuff repair demonstrated satisfactory clinical outcomes, decreased pain, recovery of shoulder functions, and increases in muscle strength. However, the re-tear rate had been reported to be relatively high in long-term follow-up. Conclusion: Despite a high re-tear rate after massive rotator cuff repair, a better understanding of the pathogenesis, progression and clinical symptoms of massive rotator cuff tear and improved surgical materials and techniques will lead to satisfactory clinical outcomes.

Reliability analysis of a complex system, attended by two repairmen with vacation under marked process with the application of copula

  • Tiwari, N.;Singh, S.B.;Ram, M.
    • International Journal of Reliability and Applications
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    • v.11 no.2
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    • pp.107-122
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    • 2010
  • This paper deals with the reliability analysis of a complex system, which consists of two subsystems A and B connected in series. Subsystem A has only one unit and B has two units $B_1$ and $B_2$. Marked process has been applied to model the complex system. Present reliability model incorporated two repairmen: supervisor and novice to repair the failed units. Supervisor is always there and the novice remains in vacation and is called for repair as per demand. The repair rates for supervisor and novice follow general and exponential distributions respectively and the failure time for both the subsystems follows exponential distribution. The model is analyzed under "Head of line repair discipline". By employing supplementary variable technique, Laplace transformation and Gumbel-Hougaard family of copula various transition state probabilities, reliability, availability and cost analysis have been obtained along with the steady state behaviour of the system. At the end some special cases of the system have been taken.

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Simultaneous Repair of Unilateral Cleft Lip and Hard Palate with Vomer Flap (편측성 구순구개열 환자에 있어 구순성형술과 동반한 서골피판법)

  • Han, Yoon-Sic;Lee, Ho;Seo, Byoung-Moo
    • Korean Journal of Cleft Lip And Palate
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    • v.13 no.2
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    • pp.77-84
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    • 2010
  • Vomer flap is used to repair anterior hard palate in complete cleft lip and palate patients. As the midline structure located in between the two cleft segments of hard palate, the vomer flap is very useful because of its vicinity to cleft site and their ease of execution when it is done with primary cheiloplasty simultaneously. In addition, the quality of tissue is very similar to that of the nasal mucosa with good vascularity. In cases of simultaneous repair of cleft lip with anterior palate using vomer flap, the hard palate can be repaired at the same time with primary cheiloplasty which is earlier period than other techniques. With simultaneous close of cleft lip and cleft hard palate by vomer flap, subsequent palatoplasty does not require wide dissection, and consequently chance of oronasal fistula formation will be minimized. Additionally, surgical time will be reduced and, the harmful effects on mid-facial growth will be diminished. In this article, we will introduce the comprehensive vomer flap technique with primary lip closure and review the comparative studies of the outcome of simultaneous repair of cleft lip and cleft hard palate with vomer flap.

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Patch size adaptive image inpainting

  • Liu, Huaming;Lu, Guanming;Bi, Xuehui;Wang, Weilan
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.15 no.10
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    • pp.3642-3667
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    • 2021
  • Texture synthesis technology has the advantages of repairing texture and structure at the same time. However, during the filling process, the size of the patch is fixed, and the content of the filling is not fully considered. In order to be able to adaptively change the patch size, we used the exemplar-based inpainting technique as the test algorithm, considering the image structure and texture, calculated the image structure patch size and texture patch size, and comprehensively determined the image patch size. This can adaptively change the patch size according to the filling content. In addition, we use multi-layer images to calculate the priority, so that the order of image repair was more stable. The proposed repair algorithm is compared with other image repair algorithms. The experimental results showed that the proposed adaptive image repair algorithm can better repair the texture and structure of the image, which proved the effectiveness of the proposed algorithm.

Endoscopic slide-in orbital wall reconstruction for isolated medial blowout fractures

  • Kim, Taewoon;Kim, Baek-Kyu
    • Archives of Craniofacial Surgery
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    • v.21 no.6
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    • pp.345-350
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    • 2020
  • Background: This study evaluated the efficacy of the endoscopic medial orbital wall repair by comparing it with the conventional transcaruncular method. This surgical approach differs from the established endoscopic technique in that we push the mesh inside the orbit rather than placing it over the defect. Methods: We retrospectively reviewed 40 patients with isolated medial orbital blowout fractures who underwent medial orbital wall reconstruction. Twenty-six patients underwent endoscopic repair, and 14 patients underwent external repair. All patients had preoperative computed tomography scans taken to determine the defect size. Pre- and postoperative exophthalmometry, operation time, the existence of diplopia, and pain were evaluated and compared between the two methods. We present a case showing our procedure. Results: The operation time was significantly shorter in the endoscopic group (44.7 minutes vs. 73.9 minutes, p= 0.035). The preoperative defect size, enophthalmos correction rate, and pain did not significantly differ between the two groups. All patients with preoperative diplopia, eyeball movement limitation, or enophthalmos had their symptoms resolved, except for one patient who had preexisting strabismus. Conclusion: This study demonstrates that endoscopic medial orbital wall repair is not inferior to the transcaruncular method. The endoscopic approach seems to reduce the operation time, probably because the dissection process is shorter, and no wound repair is needed. Compared to the previous endoscopic method, our method is not complicated, and is more physiological. Larger scale studies should be performed for validation.

Efficient Test Techniques for Submarine Cable Repair (해저광케이블 수리를 위한 효율적인 탐지 및 측정 기법)

  • Lee, Young-Sun;Jung, Jae-Jin;Shin, Hyun-Sik
    • The Journal of the Korea institute of electronic communication sciences
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    • v.3 no.1
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    • pp.1-7
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    • 2008
  • Submarine cable is the most important IT infrastructure for international communication across oceans. However, a cable fault rarely happens by ship's anchor, fishing gears, submarine earthquake, and so on, and we need to improve on repair time for the reducing expenses of cable repair ship as well as the stability of high-capacity submarine optical network. There are several kinds of cable faults such as Shunt fault, Cable cut, Open fault and Fiber break. When a fault is occurred, cable landing stations(CLS) have to analysis failure quickly and accurately to find the type and the location of a cable fault. During the repair period, CLS should swiftly perform the tests requested by cable repair ship. In order to make rapid progress on cable repair, CLS test technique is very important. So, in order to reduce the repair time, this paper is studying the CLS test techniques of locating a submarine cable fault and of checking the splicing point performed by cable repair ship.

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Antifuse Circuits and Their Applicatoins to Post-Package of DRAMs

  • Wee, Jae-Kyung;Kook, Jeong-Hoon;Kim, Se-Jun;Hong, Sang-Hoon;Ahn, Jin-Hong
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.1 no.4
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    • pp.216-231
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    • 2001
  • Several methods for improving device yields and characteristics have been studied by IC manufacturers, as the options for programming components become diversified through the introduction of novel processes. Especially, the sequential repair steps on wafer level and package level are essentially required in DRAMs to improve the yield. Several repair methods for DRAMs are reviewed in this paper. They include the optical methods (laser-fuse, laser-antifuse) and the electrical methods (electrical-fuse, ONO-antifuse). Theses methods can also be categorized into the wafer-level(on wafer) and the package-level(post-package) repair methods. Although the wafer-level laser-fuse repair method is the most widely used up to now, the package-level antifuse repair method is becoming an essential auxiliary technique for its advantage in terms of cost and design efficiency. The advantages of the package-level antifuse method are discussed in this paper with the measured data of manufactured devices. With devices based on several processes, it was verified that the antifuse repair method can improve the net yield by more than 2%~3%. Finally, as an illustration of the usefulness of the package-level antifuse repair method, the repair method was applied to the replica delay circuit of DLL to get the decrease of clock skew from 55ps to 9ps.

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Cost-Driven Optimization of Defect-Avoidant Logic Mapping Strategies for Nanowire Reconfigurable Crossbar Architecture (Nanowire Reconfigurable Crossbar 구조를 위한 결함 회피형 로직 재할당 방식의 분석과 총 비용에 따른 최적화 방안)

  • Lee, Jong-Seok;Choi, Min-Su
    • Journal of KIISE:Computer Systems and Theory
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    • v.37 no.5
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    • pp.257-271
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    • 2010
  • As the end of photolithographic integration era is approaching fast, numerous nanoscale devices and systems based on novel nanoscale materials and assembly techniques are recently emerging. Notably, various reconfigurable architectures with considerable promise have been proposed based on nanowire crossbar structure as the primitive building block. Unfortunately, high-density sys-tems consisting of nanometer-scale elements are likely to have numerous physical imperfections and variations. Therefore, defect-tolerance is considered as one of the most exigent challenges in nanowire crossbar systems. In this work, three different defect-avoidant logic mapping algorithms to circumvent defective crosspoints in nanowire reconfigurable crossbar systems are evaluated in terms of various performance metrics. Then, a novel method to find the most cost-effective repair solution is demonstrated by considering all major repair parameters and quantitatively estimating the performance and cost-effectiveness of each algorithm. Extensive parametric simulation results are reported to compare overall repair costs of the repair algorithms under consideration and to validate the cost-driven repair optimization technique.

Subxiphois Approach for The Repair of Atrial Septal Defects -A cases report- (검상돌기하절개에 의한 심방중격결손증의 교정 -2례보고-)

  • 오상기
    • Journal of Chest Surgery
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    • v.33 no.2
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    • pp.183-185
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    • 2000
  • With the marked decrease in operative mortality in simple heart diseases there have been several reports on the minimally invasive and cosmetic techniques including submammary incision right parasternal approach right anterolateral thoracotomy partial sternotomy and subxiphoid approach. We report here subxiphoid approach without sternotomy for the repair of atrial septal defect as the procedure that has less invasive technique and more cosmetic effect.

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