모듈과 웨어넷을 이용한 유비쿼터스 패셔너블 컴퓨터 디자인 연구- 탈ㆍ부착을 이용한 모듈러 시스템을 중심으로 -

김윤희,이재정 한국패션디자인학회 2009 한국패션디자인학회지 Vol.9 No.1

Design is related to every area including art, engineering, science, and humanics but has its focus areas alternate according to the technological advancements. The movement has been accelerated in the information era. Today design concentrates its attention to the user demands and needs rather than science and technology. Ubiquitous fashionable computer is one of the natural flows stemming from that paradigm change of the times. But even that kind of new design can't escape from the conventional framework if the modules and WearNet, which are the hardware of UFC, are not detachable. Thus there is a need for the structural design of multi-functional clothes by utilizing reconstructable modules and detachable WearNet that's communication route among modules. By taking advantage of detachable modules and WearNet, one can lead the infusion of next generation IT technology and fashion and open the door to a new UFC era that's human friendly and fashionable. Thus this study set the following goals; first, to develop UFC design guidelines by reflecting the user demands and needs and using detachable modules and WearNet; second, to take a survey to identify the evaluation items for the guideline items and suggest a new UFC design to meet the user needs based on the detailed improvements; and third, to suggest a UFC modular system using detachable and thus reconstructable modules and WearNet according to the user's taste. Chapter 4 covered the following sections of the entire design process: scenario development→concept development→design progress→prototype development→test of the integration between clothes and hardware→making UFC clothes→incorporating hardware into UFC clothes. The process of making UFC clothes was divided into clothes design and product design, and the research contents and design directions of each stage were examined in terms of technology and design. As a result, one piece of each male and female UFC clothes that could be worn on the college campus or at a conference was made using detachable modules and WearNet. The third generation UFC clothes is based on the modular system that can attach and detach modules, WearNet, and the constituents of clothes and presents the UFC design of a new concept as a flexible clothing system that can change many ways according to the situations of daily life. It's significant that it's a new design approach to establish a UFC design process in the viewpoint of fashion and define such UFC design elements as silhouette, material, color, and technical detail in terms of clothes and products design.

Follow-Up of 58 Traumatic Carotid-Cavernous Fistulas after Endovascular Detachable-Balloon Embolization at a Single Center

Xiao-Quan Xu,Sheng Liu,Qing-Quan Zu,Lin-Bo Zhao,Jin-Guo Xia,Chun-Gao Zhou,Wei-Zhong Zhou,Hai-Bin Shi 대한신경과학회 2013 Journal of Clinical Neurology Vol.9 No.2

Background and Purpose This study evaluated the clinical value of detachable-balloon embolization for traumatic carotid-cavernous fistula (TCCF), focusing on the frequency, risk factors, and retreatment of recurrence. Methods Fifty-eight patients with TCCF underwent transarterial detachable-balloon embolization between October 2004 and March 2011. The clinical follow-up was performed every 3months until up to 3 years postprocedure. Each patient was placed in either the recurrence group or the nonrecurrence group according to whether a recurrence developed after the first procedure. The relevant factors including gender, fistula location, interval between trauma and the interventional procedure, blood flow in the carotid-cavernous fistula, number of balloons, and whether the internal carotid artery (ICA) was sacrificed were evaluated. Results All 58 TCCFs were successfully treated with transarterial balloon embolization, including 7 patients with ICA sacrifice. Recurrent fistulas occurred in seven patients during the follow-up period. Univariate analysis indicated that the interval between trauma and the interventional procedure (p=0.006) might be the main factor related to the recurrence of TCCF. The second treatments involved ICA sacrifice in two patients, fistula embolization with balloons in four patients, and placement of a covered stent in one patient. Conclusions Detachable balloons can still serve as the first-line treatment for TCCFs and recurrent TCCFs despite having a nonnegligible recurrence rate. Shortening the interval between trauma and the interventional procedure may reduce the risk of recurrence.

A Way of Thinking Human Bodies that are Detachable: The Burgeoning Concept of Cyborg in Shakespeare’s Troilus and Cressida

Dong-ha Seo(서동하) 육군사관학교 화랑대연구소 2020 한국군사학논집 Vol.76 No.2

『트로일러스와 크레시다』속에는 종의 경계를 제거하는데 혼종/잡종의 은유가 많이 사용된다. 본 논문은 트로일러스를 한 개체로 상징적으로 대변하는 탈부착 가능한 신체이며 사랑의 징표인 소매(sleeve)가 사실은 포스트휴먼적 열망의 재현이며 사이보그 개념의 시초라고 읽어낸다. 일부 학자들이 포스트휴먼적 시각에서 셰익스피어의 『코리올라누스』, 『맥베스』나 『헨리 5세』에 등장하여 기계처럼 싸우는 전사들을 인간의 종말론적 변형인간인 사이보그의 출현으로 보았다. 이 연구들은 셰익스피어 작품 속에서 인간사회와 신체에서 투영되는 포스트휴먼 사상이나 이러한 변화에 대한 불안을 주로 다뤄왔다.『트로일러스와 크레시다』에서 셰익스피어가 등장인물들의 기계적 움직임이나 혼종적 관계가 초래하는 파국에 주목하고 집중적으로 그려낸다는 점에서 우리는 포스트휴먼에 대한 셰익스피어 시대의 불안감을 읽어 낼 수 있다. 이 작품에서 보여지듯, 셰익스피어 시대의 포스트휴먼적 열망은 신체의 취약점을 극복하는 형태로 실현되지 못하였고, 종의 경계를 제거하는 시도 역시 성적 문란함이 가져온 성병 정도로 축소된다. 그럼에도 불구하고, 본 논문은『트로일러스와 크레시다』에서 사이보그의 재현으로 사용된 트로일러스의 탈착형 갑옷소매에 주목한다. 이를 통해 저자는 셰익스피어에서 발견되는 사이보그에 대한 상상이 포스트휴먼적 열망에 대한 극적인 표현으로 재현되었으며, 이 시기에 인간과 기계의 연결 가능성에 대한 모색이라는 현대적 의미의 사이보그 개념이 출현하였음을 주장한다.

In Vitro Observation of Air Bubbles during Delivery of Various Detachable Aneurysm Embolization Coils

이덕희,황선문,임옥균,김재균 대한영상의학회 2012 Korean Journal of Radiology Vol.13 No.4

Objective: Device- or technique-related air embolism is a drawback of various neuro-endovascular procedures. Detachable aneurysm embolization coils can be sources of such air bubbles. We therefore assessed the formation of air bubbles during in vitro delivery of various detachable coils. Materials and Methods: A closed circuit simulating a typical endovascular coiling procedure was primed with saline solution degassed by a sonification device. Thirty commercially available detachable coils (7 Axium, 4 GDCs, 5 MicroPlex, 7 Target, and 7 Trufill coils) were tested by using the standard coil flushing and delivery techniques suggested by each manufacturer. The emergence of any air bubbles was monitored with a digital microscope and the images were captured to measure total volumes of air bubbles during coil insertion and detachment and after coil pusher removal. Results: Air bubbles were seen during insertion or removal of 23 of 30 coils (76.7%), with volumes ranging from 0 to 23.42 mm3 (median: 0.16 mm3). Air bubbles were observed most frequently after removal of the coil pusher. Significantly larger amounts of air bubbles were observed in Target coils. Conclusion: Variable volumes of air bubbles are observed while delivering detachable embolization coils, particularly after removal of the coil pusher and especially with Target coils. Objective: Device- or technique-related air embolism is a drawback of various neuro-endovascular procedures. Detachable aneurysm embolization coils can be sources of such air bubbles. We therefore assessed the formation of air bubbles during in vitro delivery of various detachable coils. Materials and Methods: A closed circuit simulating a typical endovascular coiling procedure was primed with saline solution degassed by a sonification device. Thirty commercially available detachable coils (7 Axium, 4 GDCs, 5 MicroPlex, 7 Target, and 7 Trufill coils) were tested by using the standard coil flushing and delivery techniques suggested by each manufacturer. The emergence of any air bubbles was monitored with a digital microscope and the images were captured to measure total volumes of air bubbles during coil insertion and detachment and after coil pusher removal. Results: Air bubbles were seen during insertion or removal of 23 of 30 coils (76.7%), with volumes ranging from 0 to 23.42 mm3 (median: 0.16 mm3). Air bubbles were observed most frequently after removal of the coil pusher. Significantly larger amounts of air bubbles were observed in Target coils. Conclusion: Variable volumes of air bubbles are observed while delivering detachable embolization coils, particularly after removal of the coil pusher and especially with Target coils.

Intracorneal injection of a detachable hybrid microneedle for sustained drug delivery

Lee, KangJu,Song, Hyun Beom,Cho, Wonwoo,Kim, Jin Hyoung,Kim, Jeong Hun,Ryu, WonHyoung Elsevier 2018 Acta Biomaterialia: structure-property-function re Vol.80 No.-

<P><B>Abstract</B></P> <P>There are increasing demands for long-term and controlled corneal drug delivery to treat various ocular diseases. Although biodegradable ocular inserts or contact lenses have been developed, the invasiveness and inefficiency of the approaches still need to be improved. Microneedle (MN) technology can deliver therapeutic molecules to the eye in a minimally invasive manner. However, the current ocular MN technology is limited to either short-term corneal drug delivery or retinal drug delivery by suprachoroidal injection. For long-term and minimally invasive corneal drug delivery, we have developed a detachable biodegradable MN that can be delivered to the inside of the cornea for sustained drug release. The detachable and biodegradable MN is a hybrid MN consisting of a drug-loaded biodegradable tip and a supporting base. The hybrid MN can be applied to the cornea by impact insertion, and it leaves only the drug-loaded biodegradable tip within the corneal tissue so that it can release the drug for a certain period. By concentration-controlled molding, the dimension of drug-loaded MN tips was precisely controlled and their detachability was optimized. The detachable tip and a supporting base were assembled to form a hybrid MN by pressure-assisted transfer molding. We carefully optimized the dimension of the drug-tip, injection dwell time, and insertion depth to achieve effective intracorneal injection of the drug-tip. The detachable hybrid MN was applied to an <I>Acanthamoeba</I> keratitis model wherein a biodegradable drug-tip was successfully delivered to the inside of the mouse cornea <I>in vivo.</I> Follow-up of the MN-treated cases for 7 days confirmed the therapeutic efficacy of the detachable biodegradable MN tips.</P> <P><B>Statement of Significance</B></P> <P>For the treatment of infectious diseases in the cornea, such as keratitis, eye drops need to be applied topically every hour for a couple of days. This is extremely uncomfortable, and poor compliance to such tightly scheduled drug administration can result in permanent scar formation in the cornea. In this work, we demonstrate a simple and rapid injection of biodegradable microneedle tips in the corneal tissue wherein the tips can deliver antibacterial drugs for 4 days to treat keratitis. Unlike other patch-style microneedle technologies, this approach allows for insertion depth-controlled and highly localized injection of detachable individual microneedle tips to the diseased tissue for sustained drug delivery. This overcomes the limitations of patch-style microneedles such as short-term drug delivery and unnecessary blockage of tissue.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Flexible-detachable dual-output sensors of fluid temperature and dynamics based on structural design of thermoelectric materials

Seo, Byungseok,Hwang, Hayoung,Kang, Sunggu,Cha, Youngsun,Choi, Wonjoon Elsevier 2018 Nano energy Vol.50 No.-

<P><B>Abstract</B></P> <P>Multifunctionalities with self-powered capability are crucial for miniaturized, scattered devices to sense temperature and dynamics of fluids, which are intrinsic parameters to monitor environmental or industrial features. Herein, we present flexible-detachable dual-output fluid sensors employing the structural design of thermoelectric materials (SDTMs) that are artificially patterned TMs. The SDTMs enable the successive thermoelectric waves as the raw voltage signals with two distinct peaks that can reflect fluid temperature and dynamics, in contact with working fluids. The 1st-peak voltage provides the precise sensing of fluid temperature, while the duration between 1st- and 2nd-peaks indicates the moving velocity. A flexible-detachable SDTM-based sensor comprising of pre-designed Bi<SUB>2</SUB>Te<SUB>3</SUB> pattern between cellulose and PET substrates performs high-resolution sensing of temperature and velocity (< 0.19 K and < 0.03 cm/s) and facilitates the sticker-like functions through high-reproducibility (> 93%) of sensing under transfers between flat and curved surfaces. Furthermore, a scalable sensor array (4-by-4 SDTMs array at 16 pixels) is developed as a large-area device for real-time detection of fluid temperature and dynamics at multiple positions, accompanying with self-power generation of 42 μW/cm<SUP>2</SUP>. The new methodology using SDTMs can contribute to developing next-generation sensors having advanced features, such as multi-detection and diversely integrated flexible-detachable functions.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Flexible-detachable dual-output fluid sensors using structural design of thermoelectric materials (SDTMs) were developed. </LI> <LI> SDTMs are artificially patterned TMs to produce successive thermoelectric waves (TWs) with two distinct peaks. </LI> <LI> First peak and duration between two peaks in voltage signals from TWs reflect fluid temperature and dynamics. </LI> <LI> Flexible SDTM sensors comprising of Bi<SUB>2</SUB>Te<SUB>3</SUB> patterns perform high-resolution sensing of fluid temperature and velocity. </LI> <LI> Sensor array (4-by-4 SDTMs at 16 pixels) enabled large-area sensing at multiple positions with self-power generation. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>Structural design of thermoelectric materials (SDTMs) that are artificially patterned TMs array enables successive thermoelectric waves producing the voltage signals that can reflect the fluid temperature and moving dynamics as a flexible-detachable dual-output sensor.</P> <P>[DISPLAY OMISSION]</P>

드부룬의 라텍스분리풍선카테타법에 의한 경동맥해면정맥동루 및 내경동맥 동맥류의 치료

장기현,한만청,김주완,한대희,최길수,심보성 대한신경외과학회 1984 Journal of Korean neurosurgical society Vol.13 No.1

The two cases, one carotid-cavernous fistula and one giant aneurysm of internal carotid artery, treated with Debrun's latex detachable balloon catheter technique are reported. Case 1 was a 50-year-old man who had proptosis, chemosis and 3rd nerve palsy in his right eye. His cerebral angiography showed typical traumatic carotid-cavernous fistula. Following complete radiologic and neurologic examination, the fistulous opening was successfully occluded with preservation of the internal carotid artery using latex detachable balloon. Immediately after occlusion of the fistula the clinical symptoms were markedly improved. Only transient facial pain occured as a complication. Case 2 was a 21-year-old woman who had a dizziness and left facial nerve palsy. The cerebral angiography showed a giant aneurysm at the petrous portion of left internal carotid artery. The patient tolerated occlusion of the left carotid artery. The left internal carotid artery was completely occluded with 3 detachable balloons. The patient had no complications during 9 days follow-up. The procedures and complications of detachable balloon catheter technique will be described and discussed.

Internal Iliac Artery Embolization during an Endovascular Aneurysm Repair with Detachable Interlock Microcoils

김우철,전용선,홍기천,김장용,조순구,박재영 대한영상의학회 2014 Korean Journal of Radiology Vol.15 No.5

Objective: The purpose of this study was to evaluate the effectiveness of detachable interlock microcoils for an embolization of the internal iliac artery during an endovascular aneurysm repair (EVAR). Materials and Methods: A retrospective review was conducted on 40 patients with aortic aneurysms, who had undergone an EVAR between January 2010 and March 2012. Among them, 16 patients were referred for embolization of the internal iliac artery for the prevention of type II endoleaks. Among 16 patients, 13 patients underwent embolization using detachable interlock microcoils during an EVAR. Computed tomographic angiographies and clinical examinations were performed during the follow-up period. Technical success, clinical outcome, and complications were reviewed. Results: Internal iliac artery embolizations using detachable interlock microcoils were technically successful in all 13 patients, with no occurrence of procedure-related complications. Follow-up imaging was accomplished in the 13 cases. In all cases, type II endoleak was not observed with computed tomographic angiography during the median follow-up of 3 months (range, 1–27 months) and the median clinical follow-up of 12 months (range, 1–27 months). Two of 13 (15%) patients had symptoms of buttock pain, and one patient died due to underlying stomach cancer. No significant clinical symptoms such as bowel ischemia were observed. Conclusion: Internal iliac artery embolization during an EVAR using detachable interlock microcoils to prevent type II endoleaks appears safe and effective, although this should be further proven in a larger population.

경동맥해면루의 분리풍선 치료후 발생한 가성동맥류의 Guglielmi 분리코일을 이용한 치료 : 증례보고 Treatment with Guglielmi Detachable Coils Case Report

최찬영,권정택,민병국,석종식,김현주,심형진 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.10

Carotid-cavernous fistulaes are traumatic in origin in over two thirds of all cases. Occlusion of these lesions by endovascular techniques or open surgical approaches is usually indicated. The current treatment of choice is occlusion by use of the intraarterial detachable balloon technique. Pseudoaneurysms. one of the complications after employment of the detachable balloon technique. develop at the balloon placement site after balloon deflation. Its incidence is approximately 44% in the literature. But peudoaneurysms are difficult to treat using endovascular techniques with detachable balloon or coils. The authors report that one case with a pseudoaneurysm who had abducens nerve palsy was treated successfully using Guglielmi detachable coils(GDC). His 6th cranial nerve palsy was improved within 6 weeks.

고립성 위정맥류 출혈을 내시경적 치료

전영빈,문정섭,유권 인제대학교 1999 仁濟醫學 Vol.20 No.1