Endoscopic vacuum assisted closure therapy for esophagopericardial fistula in a 16-year-old male:A case report

BACKGROUND Esophagopericardial fistula(EPF)is a rare,life-threatening condition with limited scientific literature and no established management guidelines.This case report highlights a successful multidisciplinary approach and the innovative use of endoscopic vacuum assisted closure(endoVAC)therapy in treating this complex condition.CASE SUMMARY A 16-year-old male with a history of esophageal atresia and colon interposition presented with progressive chest pain,fever,and dyspnea.Imaging revealed an EPF with associated pleural and pericardial effusions.Initial management with an esophageal stent failed,prompting the use of an endoVAC system.The patient underwent multiple endoVAC device changes and received broad-spectrum antibiotics and nutritional support.The fistula successfully closed,and the patient recovered,demonstrating no new symptoms at a 6-month follow-up.CONCLUSION EndoVAC therapy can effectively manage EPF,providing a minimally invasive treatment option.

Characterization of A390 aluminum alloy produced at different slow shot speeds using vacuum assisted high pressure die casting

The effects of vacuum assistance on the microstructure and mechanical properties of high pressure die cast A390alloy at different slow shot speeds were evaluated.Plate-shaped specimens of hypereutectic A390aluminum alloy were produced on a TOYO BD?350V5cold chamber die casting machine incorporated with a self-improved TOYO vacuum system.According to the results,the vacuum pressure inside the die cavity increased linearly with the increasing slow shot speed at the beginning of mold filling.Meanwhile,tensile properties of vacuum die castings were deteriorated by the porosity content.In addition,the average primary silicon size decreased from23to14μm when the slow shot speed increased from0.05to0.2m/s,which has a binary functional relationship with the slow shot speed.After heat treatment,microstructural morphologies revealed that needle-shaped and thin-flaked eutectic silicon particles became rounded while Al2Cu dissolved intoα(Al)matrix.Furthermore,the fractography revealed that the fracture mechanism has evolved from brittle transgranular fracture to a fracture mode with many dimples after heat treatment.

Endoscopic vacuum assisted closure of esophagogastric anastomosis dehiscence:A case report

BACKGROUND Esophagogastric leakage is one of the most severe postoperative complications.Partial disruption of the anastomosis,can be successfully treated with an endoscopic vacuum assisted closure(E-VAC).The advantage of that method of treatment is the ability to adjust a vacuum dressing individually to the size of the dehiscence and thus to reduce the risk of a secondary fistula or abscess.The authors present two patients with postoperative gastroesophageal leakage treated successfully with E-VAC.CASE SUMMARY Two male patients developed a potentially life threatening esophagogastric leakage.Patient A underwent resection of the distal half of the esophagus and upper part of the stomach due to Siewert type II adenocarcinoma of the gastroesophageal junction.Proximal resection of the stomach was performed in the patient B after massive bleeding from Mallory-Weiss tears.Both patients were treated successfully with an individually adapted E-VAC with concomitant correction of fluid and electrolyte disturbances,and treatment of sepsis with appropriate antibiotics.CONCLUSION Endoscopic vacuum closure is an effective alternative to endoscopic stenting or relaparotomy.Through individual approach it allows a more accurate assessment of healing.

Formulating Novel Halogen-Free Synergistic Flame Retardant Epoxy Resins for Vacuum Assisted Resin Infusion Composites

The most common process to manufacture advanced composites is the costly autoclave.One of the out-of-autoclave alternatives is the low-cost vacuum assisted resin infusion(VARI)which produces quality parts with less pollution.Epoxy resin is a widely used composite matrix resin,but its high flammability limits its use as interior composite parts for vehicles.The usual flame retardant for epoxy involves halogen,which is effective but has high smoke toxicity.As a result,halogen-free flame retardant epoxy resin systems become dominant.In this paper,phosphorus flame retardant was combined with benzoxazine(BOZ)to produce synergistic effect and achieve satisfactory flame retardance,as well as mechanical improvement for the epoxy resin.Differential scanning calorimetry(DSC),dynamic mechanical analysis(DMA),thermal gravitational analysis(TGA),the cone calorimeter(CC),and limiting oxygen index(LOI)were used to characterize the resins.The results showed significant improvement on the flame retardance of the synergistically modified resins.Specifically,the carbon residue increased by 113.6%,and the char thickness increased by 6 to 7 times,compared to those of the flammable benchmark resin.The LOI reached 33 and passed the UL94 V-0 vertical burn rating.The modified resins also exhibited adequate stability and viscosity suitable for VARI processes.

Successful treatment of cervical esophageal leakage by endoscopic-vacuum assisted closure therapy

AIM: To evaluate the efficacy and safety of endoscopic-vacuum assisted closure (E-VAC) therapy in the treatment of cervical esophageal leakage. METHODS: Between May and November 2012, three male patients who developed post-operative cervical esophageal leakage were treated with E-VAC therapy. One patient had undergone surgical excision of a pharyngo-cervical liposarcoma with partial esophageal resection, and the other two patients had received surgical treatment for symptomatic Zenker's diverticulum. Following endoscopic verification of the leakage, a trimmed polyurethane sponge was fixed to the distal end of a nasogastric silicone tube and endoscopically positioned into the wound cavity, and with decreasing cavity size the sponge was positioned intraluminally to cover the leak. Continuous suction was applied, and the vacuum drainage system was changed twice a week.RESULTS: The initial E-VAC placement was technically successful for all three patients, and complete closure of the esophageal leak was achieved without any procedure-related complications. In all three patients, the insufficiencies were located either above or slightly below the upper esophageal sphincter. The median duration of the E-VAC drainage was 29 d (range: 19-49 d), with a median of seven sponge exchanges (range: 5-12 sponge exchanges). In addition, the E-VAC therapy reduced inflammatory markers to within normal range for all three patients. Two of the patients were immediately fitted with a percutaneous enteral gastric feeding tube with jejunal extension, and the third patient received parenteral feeding. All three patients showed normal swallow function and no evidence of stricture after completion of the E-VAC therapy. CONCLUSION: E-VAC therapy for cervical esophageal leakage was well tolerated by patients. This safe and effective procedure may significantly reduce morbidity and mortality following cervical esophageal leakage.

Vacuum Assisted Closure (VAC) and Platelet-Rich Plasma (PRP): A Successful Combination in a Challenging Case of Gastroschisis

Giant gastroschisis could be a surgical challenge concerning the abdominal wall reconstruction. Many techniques have been described for both primary or staged closure but sometimes neither of them is succesful in all patients. We are presenting the combined use of Vacuum Assisted Closure (VAC) and Platelet-Rich Plasma (PRP) to improve the result in this difficult case. The use of VAC device is a well known procedure in the treatment of adult difficult wounds closure. It consists of a sponge applied directly on the abdominal wall defect, covered with a transparent dressing and connected to a controlled continuous negative pressure system [1]. Platelet-rich plasma (PRP) is an autologous concentration of human platelets in a small volume of plasma. Due to this combination it provides multiple growth and healing factors actively secreted by platelets which have been shown to begin and accelerate wound healing [2] [3]. The association between VAC and PRP was effective in the shrinkage and reduction of the abdominal defect. Fifteen months after the removal of the VAC device the fascia appears competent with a cutaneus scar that will need a plastic correction in the future. The VAC should be considered as a helpful and effective device in case of complicated giant gastroschisis or omphalocele when traditional treatment is not sufficient.

Part Thickness Variation during the Vacuum Assisted Resin Infusion Process

An experimental procedure was designed to monitor the preform thickness change real-time throughout the vacuum assisted resin infusion( VARI) process. Two kinds of liquid with different viscosity were infused with different post-filling time. The variation of the part thickness during the VARI process was studied. And the effect of the post-filling time on the part thickness was investigated.The results indicate that the compaction behavior of the preform can be divided into three stages,and the fiber volume fraction varies with the post-filling time in a similar sinusoid form. In addition,the post-filling should be overtime for the greatest fiber volume fraction,and when the resin is infused with higher viscosity,the greatest fiber volume fraction is higher.

Investigation of carbon fiber composite stiffened skin with vacuum assisted resin infusion/prepreg co-curing process

Co-cured vacuum assisted resin infusion process(co-VARI process),which combined vacuum assisted resin infusion(VARI)with prepreg vacuum bag only process(VBO),was adopted to fabricate T-shaped stiffened skin with non-crimp fabric(NCF)stiffener and prepreg skin.During compaction stage of co-VARI process,prepreg resin impregnated fiber fabric under elevated temperature and vacuum pressure.This phenomenon was characterized by fluorescent micrographs with different holding temperature and time.Its influences on processing quality and mechanical performance for co-VARI stiffened skin with different filler materials at triangular region were further analyzed by optical micrographs and pull-off test,respectively.The results show that increasing holding temperature and prolonging holding time can promote prepreg resin impregnation in fiber fabric.Moderate prepreg resin impregnation is favorable to reduce resin rich region and increase fiber volume fraction at prepreg-fabric interface.Moreover,prepreg resin impregnation effect plays significant roles on pull-off performance for co-VARI stiffened skin with fabric filler but has negligible influences on specimens with prepreg filler.In addition,compared with stiffened skin with fabric filler,superior processing quality and pull-off performances are achieved for co-VARI stiffened skin with prepreg core filler.These results are helpful to optimize processing procedures and fabricate composite structure by coVARI process.

Utility of an upright-type 11-gauge stereotactic vacuum-assisted biopsy device (Mammotome) for the diagnosis of breast microcalcifications

Objective: The aim of this study was to evaluate the utility of an upright-type 11-gauge stereotactic vacuumassisted biopsy device (Mammotome) for the diagnosis of breast microcalcifications Methods: Between May 2001 and October 2005, 154 biopsies in 152 patients with microcalcifications were performed using the upright-type 11-gauge stereotactic vacuum-assisted biopsy device. Patients in whom this biopsy was diagnosed as carcinoma or a borderline lesion, had a subsequent surgical excision of the lesion. Histopathological and radiological features of the two specimens were then compared with each other. Results: Microcalcification was identified on specimen mammograms and microscopic slides in 97.4% of cases. Of 154 Mammotome biopsies 98 (63.6%) were benign, 51 (33.1%) were malignant, 3 (1.9%) showed atypical hyperplasia, and 2 (1.3%) were indeterminate, respectively. Of the 48 cases that received surgical excision, 6 of 36 ductal carcinomas in situ (16.7%) upstaged to invasive ductal carcinoma and 1 of 2 atypical ductal hyperplasias was upstaged to ductal carcinoma in situ. The positive predictive value of the 11-gauge Mammotome for the diagnosis of invasion in breast cancer was 100%. Linear calcification and pleomorphic calcification linear/segmental distribution was reliable indications of malignancy. The mean follow-up time of the benign lesions was 22 months, and without evidence of lesion growth. Complications included vasovagal reactions (6.3%), bleeding (0.6%) and hematoma (2.6%). Conclusion: The upright stereotactic 11-gauge Mammotome procedure is an effective and reliable method for the diagnosis of breast microcalcifications. It has minimal side effects. For lesions diagnosed as ADH or DCIS with the 11-gauge Mammotome, subsequent surgical excision should be performed.

Copper nanowires decorated with TiO_(2−x) from MXene for enhanced electrocatalytic nitrogen oxidation into nitrate under vacuum assistance

The green synthesis of nitrate(NO_(3)^(−))via electrocatalytic nitrogen oxidation reaction(NOR)is a promising strategy for artificial nitrogen fixation,which shows great advantages than traditional nitrate synthesis based on Haber–Bosch and Ostwald processes.But the poor N_(2)absorption,high bond energy of N≡N(941 kJ·mol^(−1)),and competing multi-electron-transfer oxygen evolution reaction(OER)limit the activity and selectivity.Herein,we fabricated MXene-derived irregular TiO_(2)−x nanoparticles anchored Cu nanowires(Cu-NWs)electrode for efficient electrocatalytic nitrogen oxidation,which exhibits a NO_(3)−yield of 62.50μg·h^(−1)·mgcat^(−1)and a Faradaic efficiency(FE)of 22.04%,and a significantly enhanced NO_(3)−yield of 92.63μg·h^(−1)·mgcat^(−1),and a FE of 40.58%under vacuum assistance.The TiO_(2)−x/Cu-NWs electrode also shows excellent reproducibility and stability under optimal experimental conditions.Moreover,a Zn-N_(2)reaction device was assembled with TiO_(2−x)/Cu-NWs as an anode and Zn plate as a cathode,obtaining an extremely high NO_(3)−yield of 156.25μg·h^(−1)·mgcat^(−1).The Zn-nitrate battery shows an open circuit voltage(OCV)of 1.35 V.This work provides novel strategies for enhancing the performance of ambient N_(2)oxidation to obtain higher NO_(3)^(−)yield.

New Wireless Handheld Ultrasound-Guided Vacuum-Assisted Breast Biopsy (VABB) Devices: An Important Innovation in Breast Diagnosis

Vacuum-assisted breast biopsy (VABB) plays a fundamental role in the preoperative assessment of breast lesions pro- viding large histology samples that are useful to define diagnoses and biological parameters to guide treatment planning. This technique has been used in our institute since 2000 and two new wireless handheld ultrasound-guided VABB de- vices have been introduced since May 2012. In this report we analyze our experience with these revolutionary devices which are able to provide the option of single-insertion contiguous tissue samples respectively with a 13/14-gauge aperture. Our initial experience on 75 lesions shows that these devices are safe, fast, procedurally advantageous for operators and well accepted by patients. Finally VABB procedures can markedly reduce the need for surgical biopsy.

Diagnosis and excision of breast multi-focal lesions by ultrasound-guided vacuum-assisted biopsy:a comparative evaluation

Objective To compare and evaluate the efficacy of diagnosis and excision for appropriately selected breast multi-focal lesions and solitary lesion by ultrasound-guided vacuum-assisted biopsy(UGVAB).Methods Among 392 appropriately selected patients,187 patients with multi-focal lesions and 205 patients with solitary lesion were treated by the 8-gauge UGVAB from May 2007 to June 2009.All lesions were removed as completely as possible.The patients with benign pathology underwent physical and ultrasound examinations at one week and 6 months after procedure.Results During the procedure,only three patients had vasovagal syncope and twenty others complained of other intraoperative discomfort.An accurate pathological diagnosis was obtained in all lesions.There was no apparent false-negative result among the 696 lesions with benign pathology at a follow-up of 6 months after procedure.The rates of malignant or premalignant pathology,postoperative complications and residual lesions in patients with multi-focal lesions were higher than those in patients with solitary lesion.If each lesion was considered as a subject of study,there was no significant difference between the two groups.Conclusion UGVAB is an effective method for diagnosis and excision of appropriately selected breast multi-focal lesions and can be used routinely.

Efficacy and Safety of Ultrasound Guided Vacuum-Assisted Excision of Fibroadenomas: A Systematic Review

Background: Ultrasound-guided, vacuum-assisted excision [UGVAE] of fibroadenomas is an emerging minimally invasive procedure. UGVAE is being increasingly employed by breast radiologists and surgeons. It has been approved for this use since 2006 by the National Institute for Health and Clinical Excellence in the UK. The aim of this systematic review is to evaluate the efficacy and safety of this procedure based on the up to date available evidence. Methods: A comprehensive literature search of the Cochrane library, Medline, Embase, PubMed, Google scholar, Trip-database, Internet, and the reference lists of relevant articles was performed. We searched for literature with sizeable cases of therapeutic vacuum-assisted excision of fibroadenomas. All prospective studies with more than 20 study participants were screened. The study quality was assessed using the Grading of Recommendations Assessment, Development, and Evaluation [GRADE] approach. All were in English. Results: Of the four case series that fulfilled the inclusion criteria there were 516 patients in which 520 procedures were performed. Overall complete excision rate was 89.4%. In two of the studies, this was 100% when the lesions were less than 1.5 cm but reduced to 61% when between 1.5 and 2 cm. Most common significant complication was bleeding with 2 cases of pneumothorax. None of the studies can be regarded as high quality going by GRADE approach. Conclusion: Within the limit of the current published case series, UGVAE appears to be an effective and safe procedure for excision of small fibroadenomas of less than 15 mm in size. A well designed case control study or randomized controlled trials with a sufficient sample size is needed to further assess its safety, effectiveness and more importantly, patients’ satisfaction especially in larger sized fibroadenomas.

超声引导下安珂真空辅助微创旋切术与环乳晕切口手术治疗多发性乳腺纤维腺瘤患者的效果比较

目的:比较超声引导下安珂真空辅助微创旋切术与环乳晕切口手术治疗多发性乳腺纤维腺瘤患者的效果。方法:选取2022年2月至2023年10月该院收治的80例多发性乳腺纤维腺瘤患者进行前瞻性研究,按照随机数字表法将其分为观察组与对照组各40例。对照组采用环乳晕切口手术治疗,观察组采用超声引导下安珂真空辅助微创旋切术治疗,比较两组手术相关指标水平(手术时间、切口愈合时间、术中出血量、术后1个月切口瘢痕长度、术后住院时间)水平、术后不同时间(术后6、12、24 h)视觉模拟评分法(VAS)评分、术后1个月乳房表面美观评分(BSBs)和术后3个月并发症发生率。结果:观察组手术时间、切口愈合时间、术后1个月切口瘢痕长度及术后住院时间均短于对照组,术中出血量少于对照组,差异有统计学意义(P<0.05);术后6、12、24 h,观察组VAS评分均低于对照组,差异有统计学意义(P<0.05);术后1个月,观察组乳头乳晕感觉、乳房形状、乳房切口瘢痕、色素沉着等BSBs评分均高于对照组,差异有统计学意义(P<0.05);术后3个月,观察组并发症发生率为5.00%,明显低于对照组的25.00%,差异有统计学意义(P<0.05)。结论:超声引导下安珂真空辅助微创旋切术治疗多发性乳腺纤维腺瘤患者可提高术后BSBs评分,缩短手术时间、切口愈合时间、术后1个月切口瘢痕长度及术后住院时间,减少术中出血量,降低VAS评分和并发症发生率,效果优于环乳晕切口手术治疗。

真空辅助乳腺微创旋切术治疗乳腺纤维腺瘤的临床效果研究

目的:探讨真空辅助乳腺微创旋切术治疗乳腺纤维腺瘤的临床效果。方法:选取笔者医院2019年9月-2020年9月收治的92例乳腺纤维腺瘤患者,随机分为观察组(n=46,应用真空辅助乳腺微创旋切术)和对照组(n=46,应用环乳晕切口术),采用统计学方法分析两组患者治疗后的围术期指标(手术时间、术中出血量、切口长度、切口愈合时间)、美学效果(乳房对称性、凹陷程度、质地与弹性、皮肤颜色)、乳晕区感觉神经功能损伤情况、并发症(乳房变形、皮下血肿、皮肤破损、皮下瘀斑)、肿瘤复发率及肿瘤残余率。结果:术后,观察组手术时间、切口愈合时间短于对照组,术中出血量少于对照组,切口长度短于对照组,差异均有统计学意义(P<0.05);术后1个月,观察组美学效果优良率高于对照组患者(P<0.05);观察组患者术后1 d与术后6个月乳晕区感觉神经功能正常的比例为43.48%、91.30%,均高于对照组的23.91%、73.91%(P<0.05);术后,观察组肿瘤残余率和复发率均低于对照组(P<0.05),两组并发症发生情况比较差异无统计学意义(P>0.05)。结论:真空辅助乳腺微创旋切术能够降低围术期指标和术后并发症,美学效果好,肿瘤残余率和复发率低,值得临床推广应用。

The Prevalence of Vacuum-Assisted Vaginal Delivery and Its Associated Short-Term Maternal and Foetal Outcomes at a Tertiary Hospital in the Copperbelt Province, Zambia

Background: The maternal and neonatal morbidity caused by prolonged labour, maternal exhaustion and other factors push clinicians to speed up the delivery process by employing equipment such as vacuum suction or forceps to save the newborn. The purpose of this study was to determine the prevalence of vacuum-assisted vaginal delivery (VAVD) and its associated short-term maternal and neonatal outcomes at Ndola Teaching Hospital. Methods: A retrospective cross-sectional descriptive study through the analysis of routine data for women with singleton-term pregnancies who delivered by vacuum compared with spontaneous vaginal delivery was done at a tertiary hospital for the years 2020 and 2021. Chi-square and Logistic regression were used to investigate factors of vacuum delivery and to adjust for potential confounders. Results: Results showed that VAVD was mostly performed in women who had delayed second stage of labour (25.4%), maternal exhaustion (16.0%), foetal distress in the second stage of labour (12.3%). The overall VAVD prevalence was 3.7% (581/15591). Logistic regression showed that multiparous women were noted to be 87.5% (aOR 0.125;95% CI 0.025 - 0.629;p = 0.012) less likely to undergo VAVD compared to nulliparous women. Registrars were almost 6 times (aOR 5.650;95% CI 1.458 - 22.222, p = 0.012) more likely to conduct VAVD compared to midwives. Episiotomy was 3 times (aOR 3.390;95% CI 1.185 - 9.524;p Conclusion: The findings indicate the underutilisation of VAVD at NTH based on the low prevalence of 3.7%. VAVD outcomes were affected by multiparity, skill level and Episiotomy procedure, in addition, VAVD influenced admission to the NICU. Hence, there is a need to increase skills in VAVD among first-line healthcare workers such as midwives and intern doctors.

经乳晕切口真空辅助微创旋切系统治疗乳腺良性肿瘤的临床效果

目的探讨经乳晕切口真空辅助微创旋切系统治疗乳腺良性肿瘤的临床效果。方法选取2022年1月至12月淄博市妇幼保健院乳腺甲状腺外科收治的100例乳腺良性肿瘤患者为研究对象,按照奇偶数法分为两组,每组50例。参比组采用传统开放手术治疗,观察组采用经乳晕切口真空辅助微创旋切系统治疗,比较两组的治疗效果。结果观察组手术时间短于参比组,出血量少于参比组,手术切口长度短于参比组(P<0.05);观察组术后疼痛时间、切口愈合时间、住院时间短于参比组(P<0.05);观察组并发症总发生率低于参比组(P<0.05)。结论经乳晕切口真空辅助微创旋切系统治疗乳腺良性肿瘤的临床效果显著,值得推广。

超声引导下乳腺钙化微创活检与开放活检的对比研究

目的探讨高频超声引导下乳腺钙化微创切除活检与开放切除活检的优缺点。方法回顾性分析161侧(154例患者,其中7例双侧)乳腺钙化患者的临床病理资料,根据手术方式的不同将患者分为微创切除活检组(93例97侧)和开放切除活检组(61例64侧)。微创切除活检组采用高频超声引导下真空辅助旋切活检术切除钙化灶,开放切除活检组采用传统开放切除的方法,所有切除标本送术中拍片检查和病理检查。比较两组目标钙化灶一次性活检成功率、活检切口大小、术后伤口感染率、住院时间、住院费用等。结果活检切口大小微创活检组是0.31±0.03 cm,开放活检组是4.15±0.72 cm,两组差异有统计学意义(P<0.01)。目标钙化灶一次性活检成功率,微创活检组为96.91%,开放活检组为96.88%,差异无统计学意义(P>0.05)。术后伤口感染率两组均为0。病理结果为良性的患者中,微创活检组的住院时间为2.20±1.30天,开放活检组为5.80±1.97天,差异有统计学意义(P<0.05)。病理良性的患者中,微创活检组的住院费用为9303.87±4328.08元,开放活检组为12614.5±4055.85元,差异有统计学意义(P<0.001)。结论高频超声指引下对目标钙化灶进行微创切除活检与传统开放切除活检均是安全有效的活检方法,微创切除活检具有活检切口小、住院时间短、住院费用较低的优势。

基于真空导入工艺的大尺度复合材料异型构件成型技术研究

研究了大尺寸复合材料水滴形截面异型构件的成型工艺。在达西定律的基础上采用实验法测得了玻璃纤维织物渗透率,建立了树脂浸润过程的仿真模型。采用仿真软件对典型构件一体成型充模过程进行仿真分析,分别对中心点注射、中心线注射、单边注射和多线程接力注射方案进行探讨,仿真结果表明,多线程接力注射方案可有效缩短充模时间,满足树脂适用期内完成充模的要求,并达到100%充模率。采用多线程接力注射方案制备了典型构件样机,实际充模时间与理论计算相差约10%,对生产实践具有指导性意义。

响应面分析法优化减压热脱附技术处理油基钻屑

采用减压热脱附技术处理油基钻屑,考察了热脱附温度、热脱附时间和系统真空压力对脱油率的影响,在此基础上,采用响应面分析法建立了各因素与脱油率之间关系的数学模型,优化了工艺参数。实验结果表明,在热脱附温度350~450℃、系统真空压力-0.07~-0.09 MPa、热脱附时间60~90 min的条件下,脱油率可达98%以上。各因素对脱油率的影响依次为热脱附温度>系统真空压力>热脱附时间;在热脱附温度420℃、系统真空压力-0.08 MPa、热脱附时间80 min的最佳工艺条件下,平均脱油率为98.67%,与模型计算值(100%)仅相差1.33%,剩余固体的平均含油率为0.37%。回收油的组分与0号柴油基本一致,可用于配制钻井液。剩余固体中未发现重金属元素和放射性元素,能够满足《页岩气勘探开发油基岩屑处理方法及控制指标》(GB/T 41518—2022)中“可用于油气田建设基础材料”的要求。