scholarly journals An innovative compression system providing low, sustained resting pressure and high, efficient working pressure

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Josefin Damm ◽  
Torbjörn Lundh ◽  
Hugo Partsch ◽  
Giovanni Mosti

Not available

2014 ◽  
Vol 29 (1_suppl) ◽  
pp. 7-12 ◽  
Author(s):  
Andrea Ladwig ◽  
Hermann Haase ◽  
Jens Bichel ◽  
Jan Schuren ◽  
Michael Jünger

Objectives: To assess the clinical safety of a new short-stretch 2-layer compression system (3Mtm Cobantm 2 Lite) in patients with peripheral arterial occlusive disease (PAOD). This system combines a low resting pressure with a high working pressure. Methods: A pilot study was performed in 15 subjects with moderate PAOD, i.e. an ABPI of 0.5-0.8. Co-existing chronic venous insufficiency or leg ulcer was not mandatory. All subjects received the compression system which was reapplied at each study visit (days 1, 2, 3, 4, 7, 10, 14). The safety parameters were: sub-bandage pressure immediately after application, pressure-related skin damage, hypoxia-related pain, and adverse events. A product comfort questionnaire was completed at the last visit. Results: The average sub-bandage pressure of 30 mmHg defined by the protocol was achieved. No pressure-related skin damage or hypoxia-related pain was found. The reported adverse device effects were as expected for compression therapies, including dry skin and pruritus. The product comfort questionnaire completed by the subjects showed a good tolerability profile. Conclusion: The short-stretch 2-layer compression system (3Mtm Cobantm 2 Lite) was safe and well tolerated in subjects with moderate PAOD.


Phlebologie ◽  
2001 ◽  
Vol 30 (04) ◽  
pp. 88-93 ◽  
Author(s):  
H. M. Häfner ◽  
E. Piche ◽  
M. Jünger

Summary Aim: A variety of medical compression products are available for the treatment of chronic venous insufficiency. Aim of this study was to quantify the acute effects of different compression class 2 (CCL2) stockings on venous hemodynamics. We examined the pressure exerted by the stockings as a biophysical parameter and tested for correlations between it and an improvement in venous hemodynamics. Methods: A total of 42 patients with chronic venous insufficiency in stages C1-4 Ep AS, A14, Ap, PR (CEAP classification) took part in the study. Venous hemodynamics were measured by dynamic strain-gauge plethysmography with and without a variety of different CCL2 compression stockings. At the same time, the pressure exerted by the stockings was measured under static conditions (resting pressure) and under dynamic conditions (working pressure). Results: Each of the CCL2 medical compression stockings tested here brought about a different degree of hemodynamic improvement. The amount by which venous refilling time was lengthened varied from one stocking to the next. Hemodynamic improvement was closely correlated with the ratio of working pressure to resting pressure exerted by the stockings (r = 0.90, p <0.001). Conclusion: The degree of hemodynamic improvement attained depended on the elasticity of the compression stocking, i.e. the ratio of maximum working pressure to resting pressure exerted by the stocking.


Phlebologie ◽  
2007 ◽  
Vol 36 (04) ◽  
pp. 197-204 ◽  
Author(s):  
A. Ströhn ◽  
H. M. Häfner ◽  
M. Jünger

Summary Aim: Haemodynamic effectivity of 13 compression stockings in correlation with its physical characteristics. Patients, methods: In a prospective study, 42 patients in clinical stage C1–4 were examined with dynamic mercury strain gauge plethysmography to determine the effects of 13 different compression stockings in compression classes 2 and 3 (CEN) on venous haemodynamics. At the same time that venous function measurement was monitored, the pressure exerted by the compression stockings was measured under resting conditions and during standardized exercises by the patients. Results: Resting pressure measured while the patient was reclining corresponded to the in vitro textile data for the corresponding compression class in all of the stockings. The compression stockings improved venous refill times t0 and t1/2 to a statistically significant degree. The differences in the improvement in refill times t0 and t1/2 was found to depend on the quotient of maximum working pressure during movement over resting pressure (pW/pR) while standing (r = 0.90, p < 0.01 ). The improvement of the expelled volume correlated with decrease of resting pressure from ankle to calf (r = 0.86, p <0.01 ). Conclusion: Compression stockings that exert the same resting pressure at ankle level in reclining patients can still have different effects on venous haemodynamics. The haemodynamic effectivity of the various compression materials is determined above all by the degree of stiffness, which can be characterized in vivo as the ratio of maximum working pressure to resting pressure (pW/pR) while standing.


2020 ◽  
Vol 29 (Sup9) ◽  
pp. S29-S37
Author(s):  
John C Lantis ◽  
Christopher Barrett ◽  
Kara S Couch ◽  
Suzie Ehmann ◽  
Emily Greenstein ◽  
...  

There is growing evidence on an interconnection between the venous and lymphatic systems in venous leg ulceration, and the possible effects of prolonged oedema and lymphatic impairment in delayed wound healing. Compression therapy is a widely accepted treatment for venous and lymphatic disorders, as it decreases recurrence rates and prolongs the interval between recurrences. Compression bandages improve venous return, increase the volume and rate of venous flow, reduce oedema and stimulate anti-inflammatory processes. The pressure at the interface (IP) of the bandage and the skin is related to the elastic recoil of the product used and its resistance to expansion. The pressure difference between the IP in the supine and standing positions is called the static stiffness index (SSI). Elastic materials provide little resistance to muscle expansion during physical activity, resulting in small pressure differences between resting and activity, with an SSI <10mmHg. Stiff, inelastic materials with a stretch of <100% resist the increase of muscle volume during physical activity, producing higher peak pressures, an SSI of >10mmHg and a greater haemodynamic benefit than elastic systems. UrgoK2 is a novel dual-layer high-compression system consisting of an inelastic (short stretch) and elastic (long stretch) bandage, resulting in sustained tolerable resting pressure and elevated working pressures over extended wear times. It is indicated for the treatment of active venous leg ulcers and the reduction of chronic venous oedema. Each bandage layer has a visual aid to enable application at the correct pressure level. Published European studies have assessed this compression system, exploring its consistency of application, tolerability and efficacy. This article presents the first reports of health professionals' clinical experience of using the compression system in the US, where it has been recently launched. Initial feedback is promising.


Author(s):  
S. P. Zotov ◽  
N. B. Shishmentsev ◽  
V. V. Vladimirskiy ◽  
V. Yu. Bogachev

Introduction. The adjustable non-extensible compression bandage is a new product recently registered and approved for clinical use in the Russian Federation. The main indications for its use are severe chronic venous insufficiency and lymphedema, which cannot be corrected with traditional bandages and flat knit medical compressions. On the affected limb, an adjustable, non-extensible compression bandage allows high working pressure to be created at low, approaching zero, resting pressure. And depending on the tension of the velcro fastener, the working pressure can be adjusted between 20 and 50 mmHg or more. At the same time, the patient can maintain the actual pressure independently, regardless of the reduction in the volume of the limb. Low resting pressure makes it possible to use this type of bandage all day without the discomfort that is typical for traditional bandages and therapeutic compression knitwear felt by patients during sleep.Clinical case. Patient diagnosed with chronic lymphovenous insufficiency in both lower limbs. CEAP class C5 on the left, CEAP class C5 on the right. After undergoing acute iliofemoral thrombosis on the left, complicated by thromboembolism of small branches of the pulmonary artery, he was treated in a specialized vascular unit, where anticoagulant, antiplatelet and phlebotropic therapy was carried out. After the second episode of deep vein thrombosis, pain in the lower extremities, swelling of the tibia, skin itching and the appearance of small trophic ulcers started to worry, which temporarily closed against the background of increased compression therapy, prescription of phlebotropic drugs and local treatment. Subsequently, large trophic ulcers were formed on the inner surface of both shins above the ankle joint. An adjustable, non-extensible compression bandage was used on the right shin to correct chronic venous insufficiency and heal a trophic ulcer. The use of an adjustable, non-extensible compression bandage within 2 to 4 weeks resulted in the disappearance of chronic swelling, reduction of the pain syndrome, and then 5 months later – led to a reduction in trophic ulcer and the disappearance of infection signs.Conclusions. This clinical case of the successful closure of a large infected trophic ulcer that occurred after deep vein thrombosis against the background of coxarthrosis and which remained unhealed for 7 years clearly illustrates the broad possibilities of an adjustable, nonextensible compression bandage.


2003 ◽  
Vol 762 ◽  
Author(s):  
Guofu Hou ◽  
Xinhua Geng ◽  
Xiaodan Zhang ◽  
Ying Zhao ◽  
Junming Xue ◽  
...  

AbstractHigh rate deposition of high quality and stable hydrogenated amorphous silicon (a-Si:H) films were performed near the threshold of amorphous to microcrystalline phase transition using a very high frequency plasma enhanced chemical vapor deposition (VHF-PECVD) method. The effect of hydrogen dilution on optic-electronic and structural properties of these films was investigated by Fourier-transform infrared (FTIR) spectroscopy, Raman scattering and constant photocurrent method (CPM). Experiment showed that although the phase transition was much influenced by hydrogen dilution, it also strongly depended on substrate temperature, working pressure and plasma power. With optimized condition high quality and high stable a-Si:H films, which exhibit σph/σd of 4.4×106 and deposition rate of 28.8Å/s, have been obtained.


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