For providers and lymphedema therapists
Comparing compression pumps
Home pneumatic compression devices are not interchangeable. This page sets out what actually differs between them, what to specify on the order, and what your clinic ends up responsible for after the device arrives.
Start with the device category
Coverage criteria, documentation requirements and the appeal path all key off the HCPCS code a device falls under, so that is the first thing to establish.
Non-segmental
Pneumatic compressor, non-segmental home model. A single chamber inflates the limb as a whole.
Segmental, no calibrated gradient
Pneumatic compressor, segmental home model without calibrated gradient pressure. The sleeve is divided into chambers that inflate in sequence, but pressure is not individually calibrated per chamber.
Segmental with calibrated gradient
Pneumatic compressor, segmental home model with calibrated gradient pressure. Pressure in each chamber can be set individually. Plans generally hold this code to a higher documentation standard.
Chambers and sequencing
Home devices are commonly configured with 4, 8, 12 or 24 chambers. More chambers divide the sequence more finely. That is a design difference, not in itself a claim of better outcomes for a given patient. What matters clinically is whether the chamber layout covers the segments you are treating, including truncal and abdominal involvement, and whether a garment in that chamber count exists in a size your patient can actually wear.
Peristaltic and non-peristaltic action
Devices differ in how the chambers move fluid. Some use a peristaltic or wave action, in which a travelling wave of pressure passes along the limb. Others use a non-peristaltic sequential action, in which chambers inflate and hold in a set order so that pressure is maintained distal to the segment being treated.
It is a real design distinction and worth asking about, because it changes how the cycle is timed and whether pressure behind the advancing front is sustained. Bio Compression describes its own devices as using a "non-peristaltic action" intended to "mimic the body's own lymphatic system," moving fluid distal to proximal. The manufacturer publishes a summary of Waldemar Olszewski's subcutaneous pressure and lymphoscintigraphy work on this question. That summary is a manufacturer document rather than a peer-reviewed paper, so read it alongside the underlying Olszewski publications in the study index below.
Pressure range and who sets it
Published operating ranges vary by model, with some home devices running as wide as 20 to 90 mmHg. Two practical questions matter more than the top of the range: can pressure be set where you want it for this patient, and who is permitted to change it afterwards, you, the patient, or the supplier?
The garment is the therapy
The pump is a compressor. The garment is what touches the patient, and it is where most fitting problems and most abandonment begin. Worth asking of any device:
Size range off the shelf
How many standard sizes exist, and does one fit this patient without custom lead time?
Custom availability
Is there a custom option, what does it cost, and how long does it take to arrive?
Material and cleaning
Can the garment be wiped down, or is it a fabric that has to be laundered? An infection-control question in clinic and a durability question at home.
Closures and dexterity
Zips and handles or multiple straps? This decides whether an older patient can manage the garment without help.
Truncal and abdominal cover
Is there a garment that treats the abdomen and pelvis, or does coverage stop at the groin?
Replacement cost
If a garment tears in year two, what does the patient pay to replace it?
Warranty, service and year four
Warranty terms differ meaningfully between manufacturers, and the years after the warranty are where patients get stranded. Ask how long the warranty runs on the pump and separately on the garment, who repairs the unit, whether a loaner is available during repair, and what a replacement costs when a plan will not authorise a new one.
Who does the trial and the fitting
This is the difference clinics feel most. Some supply models put the trial, the measuring, the fitting appointment and the follow-up training on your staff, which is clinic time you are not reimbursed for.
We do that work. We run the pump trial, take the measurements, fit the garment in our Richland store or in the patient's home, set the device up with the patient, and handle the documentation chase with the prescriber. Your therapist stays on treatment.
Evidence
What the published studies show
Two prospective studies used the Bio Compression devices we supply and name the models, so the findings can be applied to a specific device rather than to pneumatic compression in general.
Desai and Shao, Annals of Vascular Surgery, 2020
Devices: E0651 SC-2004-OC and E0652 SC-3008-DL, Bio Compression Systems. 128 patients, 232 extremities with secondary lymphedema, followed prospectively over two years.
Findings: 28 percent decrease in absolute limb volume; significant improvement in SF-36 quality of life in seven of eight domains; significant improvement in Leg Lymphedema Complexity Score at one year; all P < 0.001. Reduced hospitalisation for lymphedema-associated complications saved over $3,200 per patient per year.
Funding: supported by an unrestricted educational grant from Bio Compression Systems, Inc.
Soran and colleagues, Lymphatic Research and Biology, 2021
Device: SC-3008-DL, Bio Compression Systems. 69 patients with lower extremity lymphedema at UPMC, 50 receiving pump therapy and 19 not, median 18-month follow-up.
Findings: infection rate fell by 32 percent, cellulitis dropping from 40 percent to 8 percent; hospital admission due to infection fell by 14 percent, from 26 percent to 12 percent; the need for physical therapy visits for MLD fell by 24 percent. Compliance with pump therapy was 84 percent. In the group without a pump, 47 percent had stopped manual lymphatic drainage altogether by follow-up.
Funding: none received. The authors declare no competing financial interests.
Both are single-centre observational studies and the first was manufacturer-supported. We list the funding because you should weigh it. The compliance figure is the one therapists most often tell us matches what they see: patients keep using a pump at home long after daily self-MLD has quietly stopped.
Bio Compression maintains a wider index of published work across lymphedema, wound care and arterial studies, including Olszewski and colleagues on tissue fluid pressure and flow during intermittent pneumatic compression and Alvarez and colleagues on venous ulcers in secondary lymphedema: biocompression.com/lymphedema-studies.
What we need from the chart
For a pump order to move without stalling we need a signed prescription and a progress note documenting the diagnosis, the conservative treatment that was tried, how long it ran and how the patient responded, together with current limb measurements. Send documentation to customersupport@midwestcompression.com and we will tell you within one business day whether anything is missing.
Checklist
Questions worth asking any supplier
- Which HCPCS code is this device supplied under, and why that one?
- How many chambers, and which segments does the garment cover?
- Is the action peristaltic or non-peristaltic, and what is the evidence for it?
- What is the pressure range, and who may adjust it after delivery?
- How many standard garment sizes are available, and is there a custom option?
- Can the garment be cleaned, and how?
- How long is the warranty on the pump, and on the garment?
- Who measures and fits the patient, your staff or the supplier's?
- Who does the patient call when it stops working, and how quickly is someone there?
- Exactly what documentation do you need from me before this ships?
What we supply
We are an independent supplier and fit garments from several manufacturers. The pumps we supply most are made by Bio Compression Systems. These are the figures that company publishes:
Inservices and trials
We will come to your clinic
We run inservices for therapy teams, bring devices in for trial, and fit patients on site or in their homes across West and Mid Michigan.
Request an inserviceDevice category descriptions are the HCPCS descriptors published by CMS. Product figures are as published by Bio Compression Systems and are quoted as that manufacturer states them; specifications change, so confirm current details with the manufacturer or with us. Study findings are summarised from the cited publications, with funding disclosed as the authors declare it; both are single-centre observational studies and should be read in full before being relied on. Midwest Compression is an independent supplier and is not affiliated with, endorsed by, or speaking on behalf of any other manufacturer. Nothing on this page is clinical advice.