Educational => Alternatives and Resources => Topic started by: admin on August 31, 2009, 05:17:37 AM

Title: REUSE (part b)
Post by: admin on August 31, 2009, 05:17:37 AM

Joined: 18 Feb 2003
Posts: 1

PostPosted: Tue Feb 18, 2003 6:22 am    Post subject: here you go!    

The effect of dialyzer reuse on dialysis delivery <
>RA Sherman, RP Cody, ME Rogers and JC Solanchick <
>Department of Medicine, UMDNJ-Robert Wood Johnson Medical School, New Brunswick 08903.<
> <
>It is well documented that the reprocessing of dialyzers may reduce their solute clearance capabilities. However, the effect of dialyzer reuse has never been assessed in an uncontrolled clinical practice setting. We addressed this issue in a prospective 436-patient, 34- center study. All patients underwent formal urea kinetic modeling monthly, usually for 3 sequential months. Dialyzers were reprocessed and reused in the usual manner for each unit. As a result, urea kinetic modeling was performed in individual patients using dialyzers with differing numbers of prior uses. For each patient, Kt/V urea for the treatment using the dialyzer with the most reuses (mean, 13. was compared with that with the treatment using the dialyzer with the fewest reuses (mean, 3. . The mean Kt/V delivered for high reuse treatments was significantly lower than that for low reuse treatments (1.05 v 1.10, P = 0.002). Prescribed Kt/V in high and low reuse treatments was identical. Individual centers appeared to differ substantially (P = 0.06) in the effect of reuse on delivered Kt/V. Of the 23 centers using formalin-based reprocessing, an average difference of > or = 0.12 (mean, 0.17) in Kt/V between high and low reuse treatments was seen in 10 centers. Dialyzer reprocessing significantly impairs dialysis delivery, an effect that may be related to the methods and procedures in individual dialysis centers. <


Joined: 22 Feb 2003
Posts: 5

PostPosted: Sat Feb 22, 2003 6:44 am    Post subject: Reuse is bad    Reply with quote
Read the FYI it contains clinical studies and not those that are industry driven for profit. <


Joined: 22 Feb 2003
Posts: 5

PostPosted: Fri Feb 28, 2003 1:33 pm    Post subject: more information    

1980's Renalin reactions<
> www.accessdata.fda.gov/sc...ey_Count=0 <
> <
>Unregistered User<
>(10/3/02 8:28:46 pm)<
>Reply 1980-1989 Renalin Reactions<
> www.accessdata.fda.gov/sc...ey_Count=0 <
> <
>Unregistered User<
>(10/3/02 8:30:06 pm)<
>Reply 1990 Renalin Reactions<
> www.accessdata.fda.gov/sc...ey_Count=0 <
> <
>Unregistered User<
>(10/3/02 8:32:56 pm)<
>Reply 1991 Renalin Reactions<
> www.accessdata.fda.gov/sc...ey_Count=0 <
> <
>Unregistered User<
>(10/3/02 8:35:12 pm)<
>Reply Dializer reuse article<
> www.drlerner.com/articles/article9.html <
> <


Joined: 18 Dec 2003
Posts: 1

PostPosted: Thu Dec 18, 2003 9:16 pm    Post subject: This could be the causitive agent    Reply with quote
MSDS: Dihydrogen Monoxide<
>Dihydrogen monoxide (also known as hydric acid) is responsible for injury, death, and property damage all over the world. Visit the Dihydrogen Monoxide Research Division online at www.dhmo.org, or send email to info@dhmo.org for more information. <
>FORMULA WT: 18.00<
>CAS NO.: 07732-18-5<
>NIOSH/RTECS NO.: ZC0110000<
>PRODUCT CODES: 4218,4219<
> EFFECTIVE: 05/30/86 <
> REVISION #01 <
> LD50 (IV-MOUSE) (MG/KG) - 25<


Joined: 14 Jan 2003
Posts: 27

PostPosted: Sat Dec 20, 2003 3:25 am    Post subject: Renalin    Reply with quote
Hugh, what documentation do you have stating Renalin contains DMHO?

little joke

Joined: 28 Mar 2004
Posts: 1

PostPosted: Sun Mar 28, 2004 6:50 am    Post subject: Don't take the post from Hugh seriously    

Seems Hugh was having a little fun. DHMO is H20, water.


Joined: 11 Jan 2003
Posts: 226

PostPosted: Wed Aug 09, 2006 4:54 am    Post subject: 2004 study    

All analyses suggested favourable survival advantage among patients treated with single use dialysers.

The reprocessing of disposable dialysers was first proposed for economic reasons [1]. Early studies suggested that the reprocessing and reuse of dialysers manufactured using cellulosic membranes conferred medical benefits to patients, apparently rendering the membrane more biocompatible with blood?

Dialysers using synthetic membranes have largely replaced those using cellulosic membranes in recent years. More than 80% of dialysis units used cellulosic dialysers in 1990 while <25% used any dialysers with a synthetic membrane. Those statistics were reversed by 2000 such that <25% of facilities used any cellulosic dialysers while >80% used synthetic membrane dialysers [4]. The synthetic membranes are more biocompatible than their cellulosic predecessors so the reuse-associated medical benefit probably disappeared. The rationale for reusing synthetic membrane dialysers thus became purely financial.?

Reprocessing dialysers is essentially limited remanufacturing that involves the cleaning and disinfection of a medical device. The practice is subject to few controls in the USA. Manufacturers could not follow such an uncontrolled practice for first use dialysers under current regulations in the USA (United States Code of Federal Regulations, Title 21, Parts 1, 26, 110, 211, 860, 876. April 1, 2003). The exposure of membranes to different disinfection chemicals and processes may

 alter those membranes in unpredictable ways [14]. Hence, the membrane used may not be functionally equivalent to the membrane purchased if it has been reprocessed. Simply said, dialysis facilities and regulatory agencies that oversee their operation in the USA do not require the levels of process control or quality surveillance that are required of manufacturers before a product is used to treat patients.

Title: Re: REUSE (part b)
Post by: cschwab on February 20, 2011, 08:45:59 AM
Abandoning Peracetic Acid-Based Dialyzer Reuse Is Associated with Improved Survival

   1. Eduardo Lacson Jr,
   2. Weiling Wang,
   3. Ann Mooney,
   4. Norma Ofsthun,
   5. J. Michael Lazarus,
   6. Raymond M. Hakim

+ Author Affiliations

      Fresenius Medical Care–North America, Waltham, Massachusetts

   1. Correspondence:
      Dr. Eduardo Lacson, Clinical Sciences, Epidemiology, and Research, Fresenius Medical Care, North America, 920 Winter Street, Waltham, MA 02451-1457. Phone: 781-699-9000, ext. 2974; Fax: 781-699-4303; E-mail: elacsonj@fmc-na.com


Background and objectives Higher mortality risk reported with reuse versus single use of dialyzers is potentially related to reuse reagents that modify membrane surface characteristics and the blood-membrane interface. A key mechanism may involve stimulation of an inflammatory response.

Design, setting, participants, & measurements In a prospective crossover design, laboratory markers and mortality from 23 hemodialysis facilities abandoning reuse with peracetic acid mixture were tracked. C-reactive protein (CRP), white blood cell (WBC) count, albumin, and prealbumin were measured for 2 consecutive months before abandoning reuse and subsequently within 3 and 6 months on single use. Survival models were utilized to compare the 6-month period before abandoning reuse (baseline) and the 6-month period on single use of dialyzers after a 3-month “washout period.”

Results Patients from baseline and single-use periods had a mean age of approximately 63 years; 44% were female, 54% were diabetic, 60% were white, and the mean vintage was approximately 3.2 years. The unadjusted hazard ratio for death was 0.70 and after case-mix adjustment was 0.74 for single use compared with reuse. Patients with CRP ≥ 5 mg/L during reuse (mean CRP = 26.6 mg/ml in April) declined on single use to 20.2 mg/L by August and 20.4 mg/L by November. WBC count declined slightly during single use, but nutritional markers were unchanged.

Conclusions Abandonment of peracetic-acid-based reuse was associated with improved survival and lower levels of inflammatory but not nutritional markers. Further study is needed to evaluate a potential link between dialyzer reuse, inflammation, and mortality.

    * Received April 9, 2010.
    * Accepted September 8, 2010.

    * Copyright © 2011 by the American Society of Nephrology

Title: Re: REUSE (part b)
Post by: cschwab on February 20, 2011, 08:58:59 AM
Beta(2)-microglobulin clearance decreases with Renalin reuse.
(increased risk of Amyloidosis (http://www.mayoclinic.com/health/amyloidosis/DS00431))

Castro R, Morgado T.

Unidade de Hemodiálise, Serviço de Nefrologia-Hospital S. Pedro, Vila Real, Portugal. ruicastro@hvreal.min-saude.pt

The HEMO study revealed that beta(2)-microglobulin clearance decreases over time with Renalin reuse in the high-flux group. It was suggested that the reuse of polysulfone or cellulose triacetate high-flux dialyzers with Renalin (without bleach) results in degradation of the high-flux capacity. At our haemodialysis unit (Vila Real, Portugal) we reused dialyzers until January 2000 (limited to 10 reuses), with an automatic machine Renatron (Renal Systems, Minntech. All of our 31 patients who started with postdilution haemodiafiltration on-line (HDFol) were always dialyzed with F-80 polysulfone (Fresenius). The reposition rate was 10 litres/session until 1998 and 20 litres/session thereafter. Reuse techniques were abandoned in our country in January 2000 following an EEC directive. Thereafter, we have decided to maintain HDFol with the same dialyzers without reuse. The mean beta(2)-microglobulin predialysis values did not decrease over time until reuse was terminated (1995 with low-flux haemodialysis: 25.4 +/- 6.4 microg/l; 1997: 24.7 +/- 6.6 microg/l; 1998: 29.2 +/- 8.9 microg/l; 1999: 33.7 +/- 4.7 microg/l) whereas beta(2)-microglobulin clearances were reasonable with HDFol (1998: 56.4 +/- 25.9 ml/min; 1999: 47.9 +/- 16.4 ml/min). After stopping reuse we have noticed that predialysis beta(2)-microglobulin values decreased (2000: 23.0 +/- 3.9 microg/l) in accordance with beta(2)-microglobulin clearance duplication (2000: 84.1 +/- 25.0 ml/min; p < 0.01). It is our opinion that the reuse of polysulfone dialyzers with Renalin should be abandoned in the field of high-flux haemodialysis. It causes deterioration in the beta(2)-microglobulin clearance and probably interferes with the high-flux haemodialysis benefits, namely the reduction of dialysis-related amyloidosis (http://www.mayoclinic.com/health/amyloidosis/DS00431).
Copyright 2002 S. Karger AG, Basel

PMID: 11867958 [PubMed - indexed for MEDLINE]
Title: Re: REUSE (part b)
Post by: cschwab on February 20, 2011, 09:04:41 AM
Official reprint from UpToDate® www.uptodate.com
©2011 UpToDate®
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Medline ® Abstract for Reference 4
of 'Reuse of dialyzers'
Single-use versus reusable dialyzers: the known unknowns.
Upadhyay A, Sosa MA, Jaber BL
Clin J Am Soc Nephrol. 2007;2(5):1079-86.
The practice of reusing dialyzers has been widespread in the United States for decades, with single use showing signs of resurgence in recent years. Reprocessing of dialyzers has traditionally been acknowledged to improve blood-membrane biocompatibility and prevent first-use syndromes. These proposed advantages of reuse have been offset by the introduction of more biocompatible membranes and favorable sterilization techniques. Moreover, reuse is associated with increased health hazard from germicide exposure and disposal. Some observational studies have also pointed to an increased mortality risk with dialyzer reuse, and the potential for legal liability is another concern. The desire to save cost is the major driving force behind the continued practice of dialyzer reuse in the United States. It is imperative that future research focus on the environmental consequences of dialysis, including the need for more optimal management of disinfectant-related waste with reuse, and solid waste with single use. The dialysis community has a responsibility to explore ways to mitigate environmental consequences before single-use and a more frequent dialysis regimen becomes a standard practice in the United States.
Title: Re: REUSE (part b)
Post by: cschwab on February 20, 2011, 09:09:48 AM
A deadly error: Routine dialysis leads to Heights woman's death

Published: Saturday, October 04, 2008, 10:51 PM     Updated: Monday, October 06, 2008, 9:02 AM
Lynn Moore | The Muskegon Chronicle By Lynn Moore | The Muskegon Chronicle

Chronicle/Kendra Stanley-Mills

"He's the only thing keeping me going," said James Allen of his dog, Duke, shown in the background. Allen, 72, of Muskegon Heights, lost his wife, Betty, after a mistake was made at a dialysis clinic. "He's my baby," Allen said of Duke. "He's all I've got."

It is too much for James E. Allen to talk about the day his wife died -- the day she left for her regular dialysis treatment and never came home.
By the numbers

69: Muskegon County residents newly diagnosed with end stage renal (kidney) disease in 2007.
197: County residents undergoing dialysis for chronic renal failure as of Dec.31, 2007.
17,000: Estimate of county residents with diabetes.
— Sources: Renal Network of the Upper Midwest and Michigan Department of Community Health

It is difficult even for him to speak Ethel "Betty" Mae Allen's name. After 26 years of marriage, the two had become inseparable and her death has left him empty and alone.

"She was all I had," Allen says. "She was everything to me."

Aug. 15, 2007, started as many days did for Betty Allen. She showed up at the DaVita Inc. dialysis center in Muskegon just as she had three days a week for the preceding three years.

But routine quickly turned to tragedy as a fatal error on the part of a technician sent a corrosive and acidic cleaning solution -- rather than the life-giving hemodialysis solution -- directly into Betty Allen's artery.

Her eyes rolled back in her head as she went into cardiac arrest. She was rushed two blocks to the emergency room at Mercy Health Partners' Mercy Campus where medical workers decided to send her on to Spectrum Health in Grand Rapids.

There, she clung to life for five days, suffering another two heart attacks and a severe brain injury. Finally, her family said she'd had enough. The next heart attack was her last -- she was not resuscitated and was pronounced dead at 3:49 a.m. on Aug. 21.

 "Betty" Mae Allen, died in a dialysis accident Aug. 21, 2007. It was supposed to be a routine dialysis treatment, but a 
technician's error sent a cleaning solution directly into her artery.

There is no doubt about what happened to Betty Allen and DaVita's role in it. Her death certificate says she died after "exposure to Renalin during hemodialysis," giving DaVita's Muskegon address. Medical notes from DaVita and Spectrum repeatedly refer to her accidental infusion with Renalin during dialysis, as does the autopsy report.

Betty Allen's death, clearly an accident that could have been avoided, was never reported to any authorities. DaVita wasn't required to. The technician who failed to rinse the dialyzing filter of its corrosive "Renalin" cleaner was required only to have a high school equivalency diploma.

And, despite the error and the potential dangers of reusing filters -- a practice that many dialysis centers have given up -- DaVita's Web site and a National Kidney Foundation executive indicate that it continues to reuse filters at its centers, including ones in Muskegon, Grand Haven and Fremont. It has received required state approval to reuse filters, according to a state offical.

DaVita officials are not talking about the accident.

"This is just a botched job," said Randall Fielstra, a Muskegon attorney representing James Allen in a lawsuit against DaVita.
A horrible death

Hypertension and diabetes -- which plague a higher-than-average number of people in Muskegon County -- are main causes of kidney disease. Nearly 200 Muskegon County residents receive dialysis on a regular basis to rid their bodies of wastes that their ailing kidneys no longer can filter out.

Betty Allen, 71, had suffered from hypertension as well as vascular disease. Her kidneys had failed and so her life depended on the hemodialysis she received at DaVita, 1277 Mercy Drive, provided by technicians whose training consisted only of instruction provided by the huge for-profit company.

During dialysis, patients are hooked up to a machine that pumps their blood from their body and through a dialyzer that cleans the blood with a dialysate solution before it is returned to the patient.

Dialyzers -- a sort of filter -- come in two types: single-use, which is thrown out after each treatment, and reusable.

DaVita uses reusable dialyzers -- assigning each patient their own -- which are cleaned after each treatment by soaking in Renalin, a solution of hydrogen peroxide, peracetic acid, acetic acid and water. After the soak, it is flushed with saline solution and tested to be sure none of the corrosive Renalin remains.

According to DaVita procedures, two employees are required to verify that dialyzers are appropriately cleaned.

But that apparently didn't happen when Betty Allen arrived at DaVita on Aug. 15, 2007. According to Fielstra and Spectrum hospital notes, when she arrived, she was taken to a dialysis machine, but it had a different patient's dialyzer in it. Technicians quickly sought out Allen's dialyzer, found it still soaking in the Renalin bath, removed it and inserted into the machine without the required rinse or testing, Fielstra said.

Allen was hooked to the machine for less than two minutes, the acidic solution coursing into her artery, before it was apparent something was horribly wrong. Betty Allen complained about burning pain at the needle site, according to a DaVita employee's progress notes, and then she became "glassy-eyed."

"Boom, her eyes roll back," Fielstra says. "It must be assumed she was exquisitely horrified and uncomfortable."

Oxygen bubbles had been introduced into Allen's arteries, essentially blocking blood flow. She went into cardiac arrest and her brain suffered severe injury -- perhaps a stroke, hospital notes indicate -- due to a lack of oxygen. It took 12 minutes of cardiopulmonary resuscitation before rescue workers could find a pulse.

From Mercy, she was sent to Spectrum for treatment of the gas embolism with a hyperbaric chamber in an attempt to dissolve the bubbles and resume normal blood flow. But the brain damage was severe, and she wasn't breathing on her own.
Chronicle/Ken StevensDaVita Dialysis, 1277 Mercy Drive.

James Allen remembers being called to Spectrum after the accident.

"I didn't want to see her like that," he says tearfully, describing her as "gripping my hand" with eyes that were open but didn't seem to see him.

The death certificate leaves no doubt the cause of Betty Allen's death, explaining that she had been "exposed to Renalin during hemodialysis."

"This woman's death was horrible," Fielstra says. "No one deserves to die this way."
An inherent risk

The Michigan Department of Community Health -- contracted by the federal government to oversee dialysis centers in the state -- was not aware there had been a death as the result of actions taken at the Muskegon dialysis center.

There is no requirement that dialysis centers report a death or severe injury, says Richard Benson, chief of the licensing and certification division of the department's bureau of health systems.

If there is a complaint, the state would investigate, but none was lodged in Allen's case, Benson says. Currently, the federal government expects inspections be conducted about every four years, he says. The last state visit to DaVita was in March because the center added new services, Benson says.

Dialysis centers are not licensed by the state, nor are employees required by the state to have certifications. Centers that want to receive federal Medicare reimbursement, the main form of payment for dialysis patients, get certified by Medicare and are required to have at least one licensed health professional -- physician, registered nurse or licensed practical nurse -- on the premises.

But a new federal law requires that technicians who hook patients up to dialysis machines -- known as patient care technicians -- receive training through state or national certifying organizations and pass a state or national exam by December 2009.

"It will add a certain level of professionalism to the role," says Dolph Chianchiano, vice president for health policy at the National Kidney Foundation.

However, Chicanchiano says that does not include the "reuse technicians" who are responsible for cleaning and rinsing dialyzers. According to DaVita's Web site, reuse technicians' qualifications are a high school or equivalent diploma and completion of DaVita's reuse technician training.

Fielstra says he was told the reuse technician on the job at the time of Betty Allen's accident was fired.

DaVita officials, citing patient privacy laws and the pending lawsuit, declined to comment or answer questions about Allen's death and the company's procedures. The company issued a statement saying its "sympathies are with the family as they attempt to deal with this situation."

Chianchiano says there are no national statistics on how many patients die as the result of accidents at dialysis centers. However, he says Allen's death is the only one he has heard of.

Maurie Ferriter, director of programs and services for the National Kidney Foundation of Michigan, says some dialysis patients watch technicians "like a hawk" while others, especially older patients, are trusting "of anybody who wears a white coat."

"Every single time you get hooked up to a dialysis machine, there is an inherent risk in the process," says Ferriter, who receives regular dialysis.
Making money

Dialysis was first successfully used in 1945 and its use became more common in the 1960s. In 1973, Medicare started paying for it, and most dialysis operations were in nonprofit hospitals staffed by licensed medical personnel.

By 1985, 44 percent of dialysis units were in hospitals and 56 percent were in freestanding clinics; 46 percent were operated by for-profit groups, according to the Centers for Disease Control and Prevention.

By 2002, 85 percent of dialysis units were in freestanding clinics, and 81 percent were for-profit.

"Over the years, as the for-profit industry started to get involved in dialysis, there were big changes ... unlicensed technicians or uncertified technicians instead of nurses," Ferriter says. "It has become more impersonal. When you think about it, it's the same principle as an assembly line."

For DaVita, dialysis is big business that is growing. It serves about 107,000 patients at 1,300 clinics. Dialysis treatments, which numbered 15.3 million in 2007, were up 5.7 percent over 2006, according to DaVita's 2007 annual report. Its net income for 2007 was $340 million.

The largest dialysis provider is Fresenius Medical Care, serving 173,863 patients worldwide at more than 2,200 clinics. Its net income for 2007 was $717 million.

One big difference between DaVita and Fresenius is the type of dialyzers they use. DaVita reuses them; Fresenius uses them once and tosses them out, says Chianchiano of the National Kidney Foundation.

"The reason why people reuse is because the dialyzers they use are so expensive," Chianchiano says.

A much smaller dialysis provider is Renal Advantage Inc., which operates a clinic at 1080 W. Norton in Roosevelt Park. It has 85 centers across the nation.

Sharon Burbage, vice president of clinical services for Renal Advantage, says the Roosevelt Park facility uses single-use dialyzers -- a decision made by local staff. Burbage says it is generally considered cheaper to reuse dialyzers, but the corporation leaves it up to each clinic to decide which ones to use.

"The bottom line is that if you reuse, you have to make sure appropriate safety measures are taken at all times," she says.
The loss

With DaVita not disputing that the actions of one or more of its employees caused Betty Allen's death, Fielstra had tried negotiating a settlement with the multimillion-dollar corporation.

But he says he was disappointed in the company's response, and so filed the lawsuit in May. The state caps noneconomic damages at $717,000 for medical errors causing brain injury; $400,000 for other types of injuries.

For James Allen, no amount of money could make up for the loss of the woman he dated since the 1960s and married in 1981. But he wants money to put a marker on his wife's grave at Mona View Cemetery.

"I don't hate them; I can forgive them," he says of DaVita. "Somebody's got to pay for it and do the right thing."

His constant companion these days is Duke, his dog. They sit together on the front porch of his Muskegon Heights home and sometimes "take a ride around the block."

He can't bear to go fishing anymore -- something he and Betty did every day, staking out their favorite spot on Muskegon Lake.

"I'll be thinking about her when I go fishing," he says. "I probably won't go anymore."

Title: Re: REUSE (part b)
Post by: cschwab on February 21, 2011, 08:34:10 PM
From the Colorado Springs, Colorado Gazette: stories about reuse and the inability to take out human error:



Title: Re: REUSE (part b)
Post by: Angie on February 25, 2011, 07:25:57 AM
Wow a lot of information on reuse! Thank you for posting all this as little is known about reuse by those who get dialysis with reuse and have every right to know the stories!
Title: Re: REUSE (part b)
Post by: cschwab on February 26, 2011, 11:52:39 AM
It has been ingrained in me since I first started with DialysisEthics over ten years ago that reuse is a bad thing - haven't seen much to change my mind.  Thought this section might need some updating though.

I did find another study:

Water Permeability:

    * Kidney Int. 2007 Aug;72(3):379; author reply 379-80.


Dialysis with high-flux membranes is widely used, in part, because they are thought to increase the removal of middle molecules when compared with low-flux membranes. Dialyzer reprocessing; however, is thought to alter middle molecule clearance. Renalin, a mixture of germicidal agents, has widespread use in dialyzer reprocessing. We determined the effect of Renalin reprocessing on the water permeability of three different dialyzers of Fresenius (F80A and 200A) and Gambro (17R) manufacture using the dead-end filtration method. Two hundred and seventeen, predominantly used but some new, dialyzers were evaluated. Water permeability of the used, but not the new, dialyzers fell abruptly and dramatically with reprocessing. The permeability fell almost 70% in the F80A dialyzer after three reprocessing procedures with similar, but somewhat slower declines, seen in the other two dialyzers. We conclude that there is a decline in water permeability seen in Renalin reprocessed dialyzers. This factor and the associated change in solute clearance and ultrafiltration characteristics should be considered in assessing the effectiveness of dialyzer reprocessing.

Title: Re: REUSE (part b)
Post by: cschwab on February 26, 2011, 12:21:43 PM
Low water permeability in a dialyzer isn't sounded very good from what I'm reading:

"The potential for CIS convective transport from contaminated dialysate can occur across dialyzer membranes of relatively low water permeability for which the only relevant mechanism is diffusion"

http://books.google.com/books (http://books.google.com/books?id=6BLVawMYe7EC&pg=PA90&lpg=PA90&dq=dialyzer+low+water+permeability&source=bl&ots=jIjvqrX4fD&sig=BuFzfdPVZ3I7G9XBkdFgtcD0txw&hl=en&ei=RU5pTZD9NoLWtQPPuuGmBA&sa=X&oi=book_result&ct=result&resnum=4&sqi=2&ved=0CCwQ6AEwAw#v=onepage&q=dialyzer%20low%20water%20permeability&f=false)

I might have to translate it to English though.
Title: Re: REUSE (part b)
Post by: Angie on February 26, 2011, 03:45:55 PM
Great info! :)

Wow what a long Google books link haha! Might want to use a url shortener sometime ;) Bit.ly is reliable and good and is the one I use when I post long links even though I go sparingly on them because I don't trust most shortened url's ;)
Title: Re: REUSE (part b)
Post by: cschwab on February 27, 2011, 12:11:48 PM

Might want to use a url shortener sometime ;)

How about bbcode?
Title: Re: REUSE (part b)
Post by: Angie on February 27, 2011, 07:44:56 PM

Might want to use a url shortener sometime ;)

How about bbcode?

Smarty pants! ;) Yes that works too.  :D
Title: Re: REUSE (part b)
Post by: cschwab on March 01, 2011, 06:48:24 PM
Just thought there might be a reason not to use it!  :)