• Archives of Plastic Surgery
• /
• 제35권5호
• /
• pp.611-614
• /
• 2008

Purpose: Infection, foreign body reaction and decreased volume of implant are common complications after augmentation rhinoplasty with $Gore-tex^{(R)}$ implant. The author experienced two cases of recurrent foreign body granuloma in the patients who underwent $Gore-tex^{(R)}$ removal because of infection after augmentation rhinoplasty. and treated them with complete removal of$Gore-tex^{(R)}$. Methods: Case 1: A 49 year-old female visited our clinic for recurrent foreign body reaction on nasal dorsum and tip area. The patient underwent augmentation rhinoplasty with $Gore-tex^{(R)}$ 3 years ago and implant was removed due to infection 9 months ago. Excision of the granuloma was performed and a piece of foreign body suspicious to be a $Gore-tex^{(R)}$ implant debris was detected under the subcutaneous pocket. The implant fragments were removed and nasalis muscle rotation flap was performed to cover the lesion. The specimen was proved to be $Gore-tex^{(R)}$ in histological study. Case 2: A 31 year-old-male with recurrent foreign body granuloma on the nasal tip area visited our clinic. 10 years ago, the patient had augmentation rhinoplasty with silicone implant and then, he underwent revisional rhinoplasty five times including nasal implant removal, which was performed 9 months ago. The authors excised the granuloma and found a small sized foreign body suspicious to be a $Gore-tex^{(R)}$ implant debris under the granuloma. The foreign body was excised and identified to be $Gore-tex^{(R)}$ in histological study. Results: In both cases, the lesions were healed without any complications and there were no evidences of recurrence up to 6 months of follow-up. Conclusion: The $Gore-tex^{(R)}$ is known to be weak against mechanical force. These properties of $Gore-tex^{(R)}$ make it difficult to remove the implant completely. In the patient who have infection after augmentation rhinoplasty with $Gore-tex^{(R)}$, the operator should take care to perform the complete removal without remaining fragment of the implant.

• Archives of Plastic Surgery
• /
• 제32권5호
• /
• pp.613-618
• /
• 2005

When a large peripheral nerve defect occurs, an autologous nerve graft is the most ideal method of recinstruction. But an autologous nerve graft has many limitations due to donor site morbidities. Many previous focused on finding the ideal nerve conduit. Among them, $Gore-Tex^{(R)}$ has several advantages over other conduits. It can be manipulated to a suitable size, does not collapse easily, and it is a semi- permeable material that contain pores. A round shaped nerve can be newly formed because of its smooth inner surface. The purpose of this study was to evaluate the availability of $Gore-Tex^{(R)}$ tube as a nerve conduit at the peripheral nerve defect in the rat sciatic nerve. The 10 mm nerve gap was made in each group. A $Gore-Tex^{(R)}$ tube filled with skeletal muscle was inserted and autologous nerve graft was harvested, respectively. In the experimental group, we placed a 0.5 mm thickness, $30{\mu}m$ pored, 1.8 mm in diameter and 14 mm length tube with skeletal muscle inserted inside. In the control group, the nerve gap was inserted with a rat sciatic nerve. We estimated the results electrophysiologically and histologically to 16 weeks postoperatively. Results in the nerve conduction velocity, total myelinated axon count, myelin sheath thickness and mean nerve fiber diameter, the experimental group was substantially lower than that of the control group, but the statistic difference was not significant (p<0.05). The morphology was very similar in both groups, microscopically. From the above results, We conclude that $Gore-Tex^{(R)}$ qualifies as an ideal nerve conduit. It is suggested that $Gore-Tex^{(R)}$ tube filled with skeletal muscle may, substitute for an autologous nerve graft.

• Journal of Chest Surgery
• /
• 제32권1호
• /
• pp.75-79
• /
• 1999

Budd-Chiari syndrome은 하공정맥에서 우심방으로의 혈류장애로 인한 간부전증이다. 본 증례의 남자 45세 환자는 1987년 선천적인 막의 하공정맥 폐쇄로 인한 하공정맥 폐색막 제거와 확장술을 자가심낭으로 이용하여 수술을 받았다. 술후 10년이 경과한 후 하공정맥이 재협착되어 비침습적인 방법인 Gianturco stent 확장술을 받았으나 치료적인 효과를 얻지 못하였다. 재수술은 Gore-Tex 인조 혈관의 일부를 오각형으로 재단하여 하공정맥의 협착 부위를 절개한후 부착 봉합후 손가락 두행지가 통과할수 있도록 확장하였다. 수술후 출혈이나 합병증없이 양호한 경과를 보였으며 항응고제 사용없이 수술 2주 경과후 퇴원 하였다. Gore-Tex 인조혈관을 일부 제단한 patch를 수술에 사용하여 좋은 결과를 얻었으며 Budd-Chiari syndrome의 재수술의 경우로 인공심폐기하에도 수술시야에 심한 출혈이 발생 하므로 신속하고 정확한 지혈 수기가 요구된다고 할수 있다.

• 한국의류학회지
• /
• 제18권5호
• /
• pp.674-681
• /
• 1994

In this study, four kinds of vapor-permeable waterproofed fabrics were selected and their properties and the changes of properties were investigated after laundering, petroleum drycleaning or tetrachloroethylene drycleaning (each 1, 5, 10 times). The results were as follows: 1) In the water resistance, only Gore Tex satisfied its minimum property requirements, $1.0kg/cm^2$ It decreased after laddering and drycleaning. Hipora-1000, Hipora-2000, Aitac decreased slightly by petroleum drycleaning and Gore Tex decreased slightly by all three methods. 2) In the moisture vapor transmission, three except Hipora-2000 satisfied its minimum property requirement, $4000g/m^2{\cdot}24hr$.24hr. After laundering and drycleaning, it increased regardless of cleaning methods. 3) In the water repellency, Hipora-lOOG, Hipora-2000 were not almost decreased after laundering and drycleaning. Aitac decreased slightly by petrolem drycleaning and Gore Tex decreased slightly by laundering and petroleum drycleaning. 4) Air permeability of Aitac increased with increasing of cleaning times regardless of cleaning methods. 5) In the bond strength, only Gore Tex dissatisfied its minimum property requirements, 250g/cm. Regardless of cleaning method, bond strength decreased with increasing of cleaning times. 6) Color difference was large in case of Hipora-1000 by laundering, Hipora-2000 by laundering and tetrachloroethylene drycleaning Aitac by tetrachloroethylene drycleaning, Gore Tex by laundering. To diminish property change of vaper-permeable waterproofed fabric, petroleum drycleaning is more effective than laundering and tetrachloroethylene drycleaning.

• 대한치과의사협회지
• /
• 제34권10호통권329호
• /
• pp.742-751
• /
• 1996

본 연구의 목적은 관통된 뼈의 결손부위를 각기 다른 membrane(Gore-tex, Vicryl, Guidor)을 사용하여 보다 나은 골 재생을 얻을 수 있는 가를 평가하는 데 있다. 여섯 마리 흰 족제비의 12개 하악 소구치를 근관치료한 후, 치근단 절제술을 실시하여 $3mm\times5mm$ 크기의 관통된 뼈의 결손을 소구치의 근첨부에 형성하였다. 전부 12개의 결손부위가 형성되었고, 이를 3개의 군으로 나누었다. 대조군으로 결손부위를 membrane barrier없이 점막골막피판으로 덮었다. 다른 각 군은 결손부위를 각 Gore-Tex, Vicryl, Guidor membrane을 사용하여 설측과 협측 모두 덮었다. 각 군을 치유기간 6주와 12주로 두 아군으로 분리하였다. 방사선학적 소견으로 6주군에서 대조군은 $65\%$, Gore-Tex군은 $90\%$, Vicryl군은 $95\%$, Guidor군은 $65\%$의 결손부위의 치유를 보였다. 12주 군에서 대조군은 $80\%$, Gore-Tex군은 $95\%$, Vicryl군은 $95\%$, Guidor군은 $90\%$의 치유를 보였다. 조직학적 소견으로 대조군에서는 완전한 골 재생이 일어나지 않았으며, 결손부위로 결합조직이 자라들어온 것이 관찰되었다. Gore-Tex 6 주군에서는 대부분 fibrillar bone이 관찰되었고, 12 주군에서는 부분적으로 lamellar bone이 형성되었다. Vicryl군에서는 거의 완전한 골의 재생이 관찰되었다. 6주군에서는 재생된 뼈는 fibrillar bone이고 부분적으로 lamellar bone을 관찰되었고, 12주 군에서는 주로 lamellar bone으로 구성되었다. Guidor군에서는 제한적인 골 재생과 함께 심한 염증이 관찰되었다. 본 연구의 결과에서 조직재생유도술은 일반적으로 골 재생을 증진시킴을 볼 수 있었고, Vicryl membrane이 가장 뛰어난 골 재생유도 가능성을 보였다.

• 대한후두음성언어의학회지
• /
• 제18권1호
• /
• pp.16-21
• /
• 2007

Many kinds of materials have been used up to now for vocal fold paralysis. Although silastic block has been the most popular material, some difficulties in carving, positioning, and placing have been the causes to find more easily applicable materials. Hy-droxylapatite, gelfoam, hyaluronic acid and fat have been suggested and used for this purposes with some limitations. During last decade, Gore-Tex was introduced and replacing old materials and showed good surgical results with less difficulties. This material is biocompatible and familiar to surgeons because it had been invented in 1960's. In addition it is easy to shape and place Gore-Tex into the window with many clinical experiences. In some problem cases, it is easy to remove from the body with less damage to surrounding tissue. The basic surgical techniques are as follows. 1) Creating window. 2) Positioning and placing the material. 3) Immobilizing the material and closing the window. The modified methods ae introduced in details with figures.

• Journal of Chest Surgery
• /
• 제55권2호
• /
• pp.171-173
• /
• 2022

A 65-year-old man underwent right trisectionectomy of the liver and reconstruction of the chest wall and diaphragm with a 2-mm Gore-Tex membrane due to recurrent hepatocellular carcinoma. After 3 years, the Gore-Tex membrane in the diaphragm migrated to the abdominal cavity and perforated the colon. We report a rare complication of a Gore-Tex membrane after diaphragm repair.

• International Journal of Internet, Broadcasting and Communication
• /
• 제16권2호
• /
• pp.93-102
• /
• 2024

We introduce a novel outdoor linear LED luminaire enhanced with Gore-Tex filters, designed to overcome the challenges of moisture and thermal management in harsh environments. This luminaire integrates expanded polytetrafluoroethylene (ePTFE)-commercially known as Gore-Tex-achieving superior waterproofing and dustproof qualities while maintaining breathability to prevent internal condensation. The design process, from conceptualization through prototyping and testing, is detailed, highlighting the luminaire's improved durability and stability under varying conditions. Experimental results demonstrate that our design significantly extends the operational lifespan and reliability of outdoor LED lighting systems by mitigating thermal and moisture-related degradation. This study not only advances ePTFE's application in lighting technologies but also offers a scalable model for enhancing the performance of LED luminaires in outdoor settings.

• Archives of Plastic Surgery
• /
• 제33권2호
• /
• pp.213-218
• /
• 2006

As the large defect of peripheral nerve occurs, the autologous nerve graft is the most ideal method but it has many limitations due to donor site morbidities. Various materials have been developed for the nerve defect as the conduits, but none of these materials is satisfactory. Among them, $Gore-Tex^{(R)}$ tube seems to be one of the most ideal nerve conduit materials at peripheral nerve defect. Many researches have focused on finding the neurotrophic factors. It is recently demonstrated that Valproic acid(VPA) has an effect of axonal regeneration as a neurotrophic factor without enzymatic degradation and toxicity problems. The purpose of this study is to evaluate the effect of VPA on the nerve regeneration at the peripheral nerve defect. A 10 mm gap of rat sciatic nerve was made and $Gore-Tex^{(R)}$ tube filled with biceps femoris muscle was placed at the nerve defect site. We let the rat take VPA as drinking water in experimental group and did not give VPA to the control group. We estimated the results as electrophysiologic and histological aspects for 16 weeks after the surgery. The nerve conduction velocity, total myelinated axon count, myelin sheath thickness and mean nerve fiber diameter significantly increased in VPA-treated experimental group when compared to the control (p < 0.05). From the above results, we conclude that VPA promotes the nerve regeneration at the peripheral nerve defect site. It is suggested that $Gore-Tex^{(R)}$ tube filled with skeletal muscle and VPA administration may be a good substitute for autologous nerve graft.

• Korean Chemical Engineering Research
• /
• 제54권4호
• /
• pp.453-458
• /
• 2016

고분자전해질 연료전지용 MEA (Membrane and Electrode Assembly)와 돼지분뇨를 이용해 미생물연료전지(MFC)를 구동하였다. 미생물 연료전지에서 과불소계막과 탄화수소막의 성능을 비교하였다. 탄화수소막으로 sPAES 막을 사용하였고 과불소계막은 Gore 막을 사용했다. sPAES MEA가 Gore MEA보다 OCV는 50mV 높았고 출력 밀도는 비슷했다. sPAES 막을 강화시킴으로써 성능을 안정시킬 수 있었다. 미생물 연료전지의 셀 온도 $45^{\circ}C$에서 최고의 성능을 얻었고 배양액 순환속도 50 ml/min에서 최고의 성능을 얻었다. 최적 조건에서 돼지 분뇨를 이용한 미생물연료전지에서 최고 $1,100mW/m^2$의 출력 밀도가 발생하였다.