首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 16 毫秒
1.
This study aimed to provide preliminary evidence on feasibility of the inaugural use of teleconsultation between acute hospitals and primary care for acute wound management in Singapore. Post-surgical patients with carbuncle wounds, perianal abscess wounds or surgical abdominal dehiscence wounds were recruited from an acute hospital. Instead of receiving their follow up care at the acute care tertiary hospital, patients were given the option to receive their care at primary care facilities instead, supported by teleconsultation wound services provided by wound care nurses from the hospital. The following outcome measures were collected: number of care sessions required (until wound healed), readmissions or referrals back to hospital, cost (patient's and healthcare provider's perspective), patients' and nurses' satisfaction.In total, 18 patients were recruited and completed the study (teleconsult group = 5; tertiary care clinic group = 13). The mean age (SD) of patients were 63.2 (SD 11.5) years old in the teleconsult group and 47.9 years old (SD 11.5) in the tertiary care clinic group. There were 7 female (54%), and 6 male (46%) in the tertiary care clinic group whereas teleconsult group consisted of male only (n = 5). Most had carbuncle wounds (teleconsult group: n = 4; 80%); tertiary care clinic group: (n = 10; 77%). For patients with carbuncle wounds, the average number of care sessions required were 21 and 33 for the tertiary care clinic and teleconsult respectively. None of the patients in the teleconsult group were referred back to the tertiary care hospital. All 16 nurses (n = 6 from acute care hospital, n = 10 from polyclinics) who participated in the feedback survey cited convenience, ease of tracking wound sizes, and closer collaboration between the acute care and primary care nurses as advantages of the service. Wound teleconsultation is feasible and potentially cost savings for patients with acute complex wounds.  相似文献   

2.
BackgroundCOVID-19 patients are at risk for the development of pressure injuries (PI).AimThe aim of this study was to determine the incidence of medical device-related pressure injury (MDRPI) in patients treated in the COVID-19 Intensive Care Unit (ICU)s.MethodsThe sample of the study consisted of 132 patients, and each with a maximum follow-up of 7 days. Data were collected in the COVID-19 ICU of a university hospital between January and May 2021 by using a Patient Characteristics Form, the MDRPI Follow-up Form, the Braden Pressure Ulcer Risk Assessment Scale, and the Pressure Ulcer Staging Form.ResultsOf the patients, 59.1% (n = 78) developed at least one MDRPI. MRDPI was observed in those with a mean age of 65.45 ± 2.462 years who were invasively ventilated (51.3%), enterally fed (46.2%), placed in the prone position (78.2%), and had a Braden score ≤12 (50%). The most common medical devices that caused MDRPIs included endotracheal tube (ET) (31.2% n = 44), non-invasive mechanical ventilation (NIVM) (23.4% n = 33), nasal high-flow (11.3% n = 16), nasogastric tube (10.6% n = 15), the ET connection (8.5% n = 12), respectively. The most common sites for pressure injuries were the nose (28.8% n = 34), mouth (25.8% n = 34), ear (12.9% n = 17), lip (9.1% n = 12), and cheek (8.3% n = 11). The most common gradings of MDRPIs were stage 2 (28.8% n = 38), stage 1 (19.7% n = 26), stage 3 (9.1% n = 12) mucous membrane injuries (12.9% n = 17) and suspected deep tissue injuries (9.1% n = 12), respectively. The time to PI was 3 days (25.7% n = 36).ConclusionsMDRPI was common among COVID-19 patients. It was found that the most common cause of pressure injury was ventilators, and PI developed in the mouth and lip sites most frequently in patients in prone position, stage 2 and suspected deep tissue damage was the most common grade. It is important to evaluate the skin in contact with medical devices in COVID-19 patients and to take the necessary interventions to prevent PI.  相似文献   

3.
4.
ObjectiveThe COVID-19 pandemic presented new care delivery obstacles in the form of scheduling procedures and safe presentation to in-person visits. Contraception provision is an indispensable component of postpartum care that was not immune to these challenges. Given the barriers to care during the initial months of the pandemic, we sought to examine how postpartum contraception, sterilization, and visit attendance were affected during this period.Study Design.We performed a retrospective chart review to examine contraception initiation, sterilization, and postpartum virtual and in-person visit attendance rates during the first six months (March 15 to September 7, 2020) of the COVID-19 pandemic compared to the rates in the same period in the year prior at a single tertiary academic care center. We abstracted data from the first prenatal visit through twelve weeks postpartum.ResultsWith the initiation of virtual appointments, postpartum visit attendance significantly increased (94.6 % vs 88.4 %, p < 0.001) during the pandemic with no difference in overall contraception uptake (51 % vs 54.1 %, p = 0.2) or sterilization (11.0 % vs 11.5 %, p = 0.88). During the pandemic, contraception prescribed differed significantly with a trend towards patient-administered methods including pills, patches, and rings (21 % vs 16 %, p = 0.02). In both periods, there was a significantly younger mean age (p < 0.001), higher proportion of non-White and non-Asian race (p < 0.001), public insurance (p = 0.003, 0.004), and an established contraceptive plan prenatally (p < 0.001) in the group that received contraception.ConclusionAs virtual postpartum visits were instituted, contraception initiation and sterilization were maintained at pre-pandemic rates and visit attendance rose despite the obstacles to care presented by the COVID-19 pandemic. Provision of virtual postpartum visits may be a driver to maintain contraception and sterilization rates at a time, such as early in the COVID-19 pandemic, when patient care is at risk to be disrupted by social distancing, isolation, and avoidance of medical campuses.  相似文献   

5.
AimThe present study was carried out as a comparative observational study in order to determine the effect of prophylactic dressing on the prevention of skin injuries due to the use of personal protective equipment (PPE) in health care workers (HCWs) working with COVID-19 patients. In addition, the effect of nasal strip on the prevention of discomfort in breathing with mask was also investigated.Materials and methodsThe present study was carried out with 48 HCWs (Control Group-CG, n = 20; Experimental Group 1-EG1, n = 20; Experimental Group 2-EG2, n = 8) who use PPE on the face region and work with COVID-19 patients. Data was collected with Data Collection Form developed by researchers. In participants in CG, normal procedures of the institution in using PPE were followed. In EG1, prophylactic dressing was used on risky areas on the face. In EG2, nasal strip sticky on one side was used in addition to prophylactic dressing. The evaluation of the facial skin was made once a day by a researcher with expertise in wound management.ResultsGroups were similar in terms of demographic characteristics of participants. Overall rate of skin injuries associated with PPE use was 47.9%. Skin injuries developed in all participants in CG (n = 20), and in two and one participants in EG1 and EG2 respectively, with significant difference between groups. The most common skin injuries were Stage 1 pressure injury (29.2%), blanchable erythema of intact skin (27.1%) and itching (18.8%). No participant in EG2 reported discomfort in breathing (n = 8). Significant difference was found between groups in favor of EG2 in terms of experiencing discomfort in breathing (p < 0.001).ConclusionsIn the present study, it was established that using prophylactic dressing under PPE prevents skin injuries on the facial skin and using nasal strip prevents discomfort in breathing with mask. In view of these results, it was recommended that prophylactic dressing should be used under PPE.  相似文献   

6.
ObjectivesCOVID-19 resulted in significant disruption to sexual and reproductive health (SRH) services globally and the impact of this remains under explored. This study aimed to explore the impact of COVID-19 on SRH during the initial weeks of the first UK lockdown.DesignThis rapid study employed a cross-sectional anonymous survey design. Between 9th April and 4th May 2020, participants completed an online questionnaire around the impacts of COVID-19 on SRH. The survey was completed by 194 participants. The findings in this paper, report on data from closed and free text questions from 32% (n = 62) of the total sample who said they were able to get pregnant.ResultsParticipants raised concerns around reduced access to, or a denial of, SRH services as well as reduced choice when such services were available. Participants felt their right to access SRH care was impinged and there were anxieties around the impact of COVID-19 on maternal and foetal health.ConclusionsThe study contributes to a better understanding of the concerns, during the first 8 weeks of the UK lockdown, of those who could get pregnant. Policy makers and planners must ensure that SRH policy, that recognises the importance of bodily autonomy and rights, is central to pandemic planning and responses both in the UK and globally. Such policies should ensure the immediate implementation of protocols that protect SRH service delivery, alongside informing service users of both their right to access such care and how to do so. Further work is necessary with members from minority communities who are mostly absent from this study to explore if, and how, COVID-19 may have exacerbated already existing disparities.  相似文献   

7.
BackgroundElectrical microcurrent therapy (EMT) consists of the application of low intensity (μA) currents that are similar to endogenous electric fields generated during wound healing.AimsTo examine the effectiveness and safety of EMT for improving wound healing and pain in people with acute or chronic wounds.MethodRandomized clinical trials (RCTs) assessing the effectiveness of EMT in wound healing published up to August 1st, 2020 were included. The main outcomes were wound surface area, healing time, and number of wounds healed. Secondary outcomes were pain perception and adverse events. A quantitative analysis was conducted using the inverse variance and Mantel-Haenszel methods.ResultsEight RCTs were included in the qualitative summary and seven in the quantitative analysis (n = 337 participants). EMT plus standard wound care (SWC) produced a greater decrease in wound surface [mean difference (MD) = -8.3 cm2; CI 95%: ?10.5 to ?6.0] and healing time (MD = -7.0 days; CI 95%: ?11.9 to ?2.1) that SWC alone, showing moderate and low certainty in the evidence, respectively. However, no differences were observed in the number of healed wounds [risk ratio = 2.0; CI 95%: 0.5 to 9.1], with very low quality of evidence. EMT decreased perceived pain (MD = -1.4; CI 95%: ?2.7 to ?0.2), but no differences in adverse effects were noted between groups (risk difference = 0.05; CI 95%: ?0.06 to 0.17).ConclusionsEMT is an effective, safe treatment for improving wound area, healing time, and pain. Further clinical trials that include detailed intervention parameters and protocols should be designed to lower the risk of bias.  相似文献   

8.
Background/aimClinical assessment of wounds for surgical site infection (SSI) after hospital discharge is challenging and resource intensive. Remote assessment using digital images may be feasible and expedite SSI diagnosis. Acceptable and accurate methods for this process are needed. This study developed and evaluated the feasibility, acceptability and usability of a method for patients to capture standardised wound images for remote wound assessment to detect SSI.Materials and methodsThe work was conducted in two phases. Phase I involved: i) a review of literature to identify key components of photography relevant to taking wound images, ii) development of wound photography instructions for patients and a secure process for transmission of images using electronic survey software and iii) pre-testing of the photography instructions and processing method with a sample of 16 patients using cognitive interviews and observations. Phase II involved a prospective cohort study of 89 patients to evaluate the feasibility, acceptability and usability of the remote method following discharge from hospital after surgery. Quality of the images was assessed by three independent clinical reviewers.ResultsSome 21 key components for photographing wounds were identified from 11 documents. Of these, 16 were relevant to include in instructions for patients to photograph their wounds. Pre-testing and subsequent iterations improved understanding and ease of use of the instructions and the process for transmitting images. Fifty-two of 89 (58.4%) patients testing the method remotely took an image of their wound(s) and 46/52 (88.5%) successfully transmitted images. When it was possible to ascertain a reason for not taking/transmitting images, this was primarily health problems (n = 7) or lack of time/poor engagement with the study (n = 4) rather than problems relating to technology/competency (n = 2) or practical issues relating to the wound itself (n = 2). Eighty-seven (85.3%) of the 102 images received were evaluated to be of high quality and sufficient to remotely assess SSI by at least two independent reviewers.ConclusionA simple, standardised and acceptable method for patients to take and transmit wound images suitable for remote assessment of SSI has been developed and tested and is now available for use in routine clinical care and research.  相似文献   

9.
10.
11.
BackgroundFlap surgery for deep pelvic pressure ulcers has already shown its effectiveness. Most studies relating to the postoperative period assessed complications rates and associated risk factors, but none focused on delayed wound healing. The objective of this study was to describe wound healing delay after primary flap surgery in patients with spinal cord injury (SCI) and to assess associated risk factors.MethodsThis observational retrospective study based on medical charts included all persons with SCI operated for primary flap surgery for pelvic PU in the Hérault department of France between 2006 and 2014. Overall, 100 biomedical, psychological, socioeconomics and care management factors were studied. The primary outcome was wound healing delay, defined as time from surgery to complete cutaneous closure.Results85 patients were included. Median healing time was 48 days (R: 20–406). Healing rate was 70% at 3 months and 90% at 4 months. After a multivariate analysis three factors were significantly associated with delayed wound healing: duration of hospitalization in the acute care unit (HR = 2.68; p = 0.004), local post-operative complication (HR = 10.75; p = 0.02), and post-operative sepsis (HR = 2.18; p = 0.02).ConclusionAfter primary skin flap surgery for PU in persons with SCI, delayed wound healing is related to local or general complications as well as care management organization. The risk of delayed wound healing justifies the implementation of a coordinated pre-operative management to prevent complications and a structured care network for an earlier transfer to a SCI rehabilitation center.  相似文献   

12.
BackgroundNurses play a vital role in pressure injury prevention (PIP) but require foundational knowledge to ensure appropriate PIP strategies are enacted.AimsTo describe and compare medical and surgical nurses’ knowledge of pressure injury (PI) in a tertiary level hospital in China, and to identify predictors of PI knowledge among these groups.DesignA cross-sectional survey was conducted between June and December 2020.MethodsRegistered nurses from nine medical and fifteen surgical wards in a tertiary hospital were invited. The survey was composed of two parts; demographic and professional characteristics; and the Chinese translated version of the Pressure Ulcer Knowledge Assessment Tool 2.0 (PUKAT 2.0) where the total score ranged from 0 to 25; higher scores imply more knowledge. Medical and surgical nurses' knowledge test scores were compared using independent t-test. Multiple linear regression analysis was used to determine factors predictive of nurses’ knowledge.ResultsIn total, 423 nurses from 24 wards participated the study and 404 nurses (95.5%) completed the knowledge test (Surgical n = 236, 58.4%; Medical n = 168, 41.6%). The PUKAT 2.0 mean score was 11.6 ± 3.0 (Surgical 12.2 ± 3.0; Medical 10.7 ± 2.8) with 335 (82.9%) nurses scoring <60%. Multiple linear regression showed working in surgical wards, nurse-in-charge position and previous PI training were significant predictors of knowledge scores.ConclusionKnowledge is a precursor to safe practice. Nurses demonstrated poor knowledge of PIP. Pressure injury related education may help improve nurses' knowledge but the extent to which it is used in place and impacts patients’ outcome requires more investigation.  相似文献   

13.
Punch and shave biopsies are important dermatologic procedures in the inpatient setting but have a risk of wound infection. Data on the incidence of infection in this setting are limited and conflicting. This retrospective study of 127 pediatric inpatients at two tertiary care centers who underwent biopsy demonstrated a low overall risk of infection (n = 1, 0.8%). Twenty‐five (19.7%) were neutropenic, and 51 (40.2%) were not taking systemic antibiotics at the time of biopsy; none of these patients developed a wound infection. The overall low rate of infection should reassure physicians who are balancing the risks and benefits of performing a skin biopsy in children in the inpatient setting and suggests that physicians should not defer clinically indicated biopsies because of concern about infection.  相似文献   

14.
BackgroundThe course of chronic spontaneous urticaria (CSU) can be influenced by infections, depression, and stress.ObjectiveOur aim was to investigate the impact of the COVID-19 pandemic on the course of refractory CSU together with patient adherence to omalizumab and treatment adjustments.MethodsUrticaria Activity Score (UAS7) was used to assess disease activity. Fear of COVID-19 Scale (FC-19s), and Depression Anxiety Stress Scale (DASS-21s) were performed to assess mental health status. All scales were performed during the Quarantine Period (QP) and Return to the Normal Period (RTNP). UAS7 Before Pandemic (BP) was recorded from the patients medical records.ResultsThe authors evaluated 104 omalizumab-receiving CSU patients. UAS7 scores during QP were significantly higher than those in RTNP and BP (p < 0.01). DASS-21 and FC-19 scores were significantly higher during QP compared to RTNP (p < 0.01). Nineteen (18.2%) patients ceased omalizumab, 9 patients prolonged the intervals between subsequent doses during the pandemic. UAS7 scores in QP were significantly higher in patients who ceased omalizumab than in those who continued (p < 0.001). Among patients who continued omalizumab, 22.4% had an increase in urticaria activity and higher FC-19 scores in comparison with those with stable disease activity (p = 0.008).Study limitationsThe small sample size of patients with prolonged intervals of omalizumab and the lack of mental health evaluation with the same tools prior to the study.ConclusionFear induced by COVID-19 can determine an increase in disease activity. Therefore, patients on omalizumab should continue their treatment and prolonged interval without omalizumab can be considered in patients with good urticaria control.  相似文献   

15.
BackgroundCOVID-19 significantly influences the overall patient status and, in severe symptomatology, the ability to move and the low oxygenation of the tissue for the ventilated patient in Intensive Care Units (ICU). There is a higher risk for Pressure injuries (PIs) development.ObjectivesThe nationwide analyses of the National health register aimed to compare the prevalence of PIs reported before the pandemic COVID-19 started and during the pandemic in 2020.MethodA retrospective, nationwide cross-sectional analysis of data regarding the STROBE checklist collected by the National Health Information System (NHIS), focusing on the PIs reporting based on the International Classification of Diseases (ICD-10) diagnoses L89.0-L89.9 for PIs in 2020. The data from the pandemic period of COVID-19 in 2020 were compared to the prevalence of PI cases in the period 2010–2019 in the Czech Republic in all hospitalized patients.ResultsThe total number of admissions for L89 in 2020 was 14,441, of which 1509 (10.4%) also had COVID-19. In the ICU were 4386 admissions, 12.1% of which also had COVID-19. A higher proportion of PIs is observed in patients hospitalized with COVID-19 than in patients without COVID-19 (2.62% vs 0.81%, respectively 1.05% vs 0.46% when standardized to the 2013 ESP = European Standard Population). In patients hospitalized in ICU, 3.68% with COVID-19 had PIs vs 1.42% without COVID-19 had PIs (1.97% vs 0.81% using the 2013 ESP).ConclusionThe national health registers analyses have proven that the prevalence of PIs was higher among patients hospitalized with the SARS-CoV-2 infection.  相似文献   

16.
PurposeTo systematically summarize and review the existing literature to determine the difference between wound cleansing techniques, irrigation and swabbing, in relation to bleeding, pain, infection, necrotic tissue and exudate in non-infected chronic wounds including pressure injuries, venous and arterial leg ulcers and diabetic foot ulcers.MethodsA systematic search of the electronic databases Ovid Medline, Cochrane Database of Systematic Reviews, Cumulative Index to Nursing and Allied Health Literature (CINAHL), and EMBASE was performed to identify all relevant literature in English. The search also included systematic reviews as a method to obtain additional potential citations by manually searching the reference lists. Included studies were assessed for methodological quality using the Cochrane Risk of Bias Tool.ResultsOne study met eligibility criteria. Two hundred fifty six patients with wounds healing via secondary intention (n = 256) were included. Wound cleansing via swabbing technique was associated with increased perception of pain and increased rates of infection when compared to the irrigation group (93.4% versus 84.2% p = 0.02 and 5.2% versus 3.3% p = 0.44, respectively). Only a small proportion of this sample met the inclusion criteria, so the results are not considered externally valid.ConclusionWound cleansing remains a controversial topic. Despite calls for further research, there continues to remain a large gap in evidence to guide practice. Irrigation continues to replace swabbing in the management of chronic wounds, although evidence of improved outcomes is virtually nonexistent. Although the one study identified was of sound methodological quality, chronic wounds accounted for only a small percentage of the sample. Therefore, results are not generalizable to those with chronic wounds. Further research is needed to determine the effectiveness of basic wound cleansing techniques before considering more costly products.  相似文献   

17.
18.
IntroductionIncontinence-associated dermatitis (IAD) is a type of irritant contact dermatitis due to prolonged exposure of the skin to moisture induced by urine or/and faeces. The main principles when treating IAD involves protecting the skin from further exposure to irritants, establishing a healing environment, and eradicating skin infections. This study aimed to evaluate the effectiveness of the hydrocolloid crusting method (HCM) versus the standard care method (SCM) in treating IAD.MethodA randomised controlled trial was conducted in an acute tertiary hospital in Singapore between August 2019 to September 2021. Using computer-generated numbers, patients were randomised into either HCM or SCM treatment groups. HCM treatment involved cleansing the affected area with a pH-neutral non-rinse moisturising cleanser, and the application of alternate layers of hydrocolloid powder, and non-sting film barrier spray (repeated three times during each use). Patients in the SCM treatment group received the same cleanser followed by a 30% zinc oxide barrier cream. IAD was assessed daily for up to seven days by the wound care nurses using the IAD severity tool. The primary outcome of the study was the mean difference in IAD score per day between both methods.ResultsForty-four patients were eligible and recruited (22 in HCM; 22 in SCM). Patients in both groups were comparable in age and gender. IAD Category 2 was more predominant in both methods. The most common location of IAD was at the perianal skin and diarrhea related to gastroenteritis was the most prevalent cause of IAD. More patients in the SCM group (n = 12; 54.5%) had their IAD healed within seven days compared to HCM, (n = 7; 31.8%) group. However, the average decrease in IAD scores per day for both methods were found to be similar.ConclusionHCM can be considered as a treatment of IAD along with the use of SCM. A skin care regimen should include effective cleansing, skin protection, and moisturization in IAD management.  相似文献   

19.
ObjectiveRecent literature has shown that negative pressure wound therapy with instillation and dwell time (NPWTi-d) is a valid method of managing complex wounds and gained increasingly wider interest due in part to the increasing complexity of wounds. The purpose of this case study was to obtain information on the profile of NPWTi-d in necrotizing fasciitis patients, investigate the role it play in wound bed preparation, length of hospital stay and number of debridement operations.MethodsNPWTi-d has been used in patients with necrotizing fasciitis with either normal saline or Prontosan® solution and complete the treatment were involved in the present study. Following aggressive surgical debridement, NPWTi-d was initiated by instilling solution with a set dwell time of 5–10 min, followed by continuous NPWT of ?125 mm Hg for 3–5 h. The system was changed on a 3–5 days schedule until sufficient granulation tissue was evident. Patients received systemic antibiotics and underwent wound debridement as indicated. Data of wound bed preparation, length of hospital stay, duration of NPWTi-d therapy, number of surgical interventions were collected retrospectively from patient medical records.ResultsA total of 32 patients with diagnosis of necrotizing fasciitis received NPWTi-d were included. Granulation tissue was found to be sufficient in 9–16 days. The mean duration of NPWTi-d therapy was 12.5 days prior to wound closure by split-thickness autograft (n = 21), suture (n = 9), or flap transplantation (n = 2).Patients received NPWTi-d treatment over a period of 8–16 days. The mean length of hospitalization was 22.8 days. All wounds were successfully closed and no recurrence of infection or adverse event was observed during NPWTi-d treatment.ConclusionIn these patients, NPWTi-d facilitates wound cleansing and wound bed preparation and offers the clinician an additional tool for the management of necrotizing fasciitis. Further well designed prospective investigations with low risk of bias are needed to confirm these findings in the future work.  相似文献   

20.
This paper aimed to describe the clinical outcomes and patients’ acceptance of Maggot debridement therapy (MDT) at a tertiary hospital in Singapore. Patients with non-viable tissue (NVT) covering at least 25% of wound bed on lower limbs and/or unable to tolerate sharp debridement at the bedside were recruited between January and August 2021. Sterile medical-grade maggots of Lucilla Cuprina were used. Wound specialist nurses assessed the size and wound to determine the type of MDT, either Baggots or free-range larvae (FRL), and the number of maggots required prior to commencement of therapy. Wound sites were measured and photographed at multiple time points: before the start of MDT therapy, during the wound review at 48 or 72 h after each cycle of MDT and completion of therapy. Three patients received Baggot therapy, while the remaining 11 received FRL therapy. The mean age for patients receiving Baggot and FRL were 78.3 (SD = 10.6) and 63.6 (11.4), respectively. Each patient received three cycles of MDT treatment on average. The most common type of wound was ray amputated toe wounds (n = 8), while the most common wound aetiology was arterial ulcerations (n = 12). A reduction of NVT was observed in 11 out of 14 patients, and ten of these 11 patients achieved successful debridement (at least 25% reduction in NVT). Five out of 14 patients had to undergo amputation within the same admission due to poor wound healing, and 60% of these five patients failed to achieve successful debridement. MDT was quite well-accepted by the patients, and they felt some improvement in their wounds. MDT can facilitate wound healing through successful debridement and potentially reduce the need for amputation. Further research needs to be done regarding the type of MDT that is optimal to use in tropical countries with high humidity.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号