Home › Blog › Medical › Surgical Instruments & Tools › How to spec: what to send
How to Spec a Surgical-Instrument Seal, Grip, or Tray Liner: What to Send H-O for a Quote
The fastest surgical-part quote starts with the job and the sterilization, not the material. If you tell H-O whether the part seals, cushions, or protects, whether the instrument is reprocessed, and the sterilization method and cycle count, engineering can recommend a family and grade and quote a die-cut part in one pass. This is the checklist that turns an instrument idea into a converted part without a round of back-and-forth.
Start with the job and the sterilization
The two most useful things on a surgical RFQ are the job and the sterilization. The job, whether the part seals a path, cushions a grip, or protects a tray, narrows the family; the sterilization method and cycle count, and whether the instrument is reprocessed, grade the material within that family. A reusable instrument seal graded for fifty autoclave cycles and a single-use seal graded for one gamma dose are different specifications even for the same geometry. Name the job and the sterilization first; the grade follows.
The inputs that size the part
After the job and the sterilization, these inputs let engineering select and size the part on the first pass:
- The job. Seal, cushion a grip, or protect a tray, which sets the family.
- Single-use or reprocessed, and the sterilization method and cycle count. Repeated autoclave, gamma or e-beam, or a vaporized or gas method, which grades the material for compression set, dose, or chemistry.
- Aggressive chemistry or high temperature. Anything that might exceed silicone and force an FFKM.
- Purity and extractables. Whether a repeated patient-contact seal needs a high-purity platinum-cured silicone.
- Geometry. The seal gland, the grip profile, or the tray cavities that hold each instrument.
- Biocompatibility basis and quantities. The basis your file needs per the ISO 10993 series or USP Class VI, and prototype plus production volumes.
What format to send
A dimensioned drawing or a DXF or STEP of the part outline is ideal, but a sketch with the gland, grip, or tray dimensions and the job labeled is enough to start, and for a tray, the instrument outlines or the set list helps us lay out the cavities. If you have a material in mind from the parent page, name it and we confirm it against the job and sterilization; if not, describe the job and the route and let engineering recommend a family and grade.
Tell us whether the part ships kiss-cut on a liner for placement.
From Instrument Idea to Converted Part
| You send | It decides |
|---|---|
| The job: seal / cushion / protect | Seal, grip foam, or tray foam family |
| Single-use or reprocessed + method + cycles | Grade for compression set, dose, or chemistry |
| Aggressive chemistry / high temperature | Silicone vs FFKM |
| Purity / extractables requirement | Platinum-cured vs other silicone |
| Geometry (gland / grip / tray cavities) | Die-cut outline and cross-section |
| Biocompatibility basis + quantities | ISO 10993 / USP Class VI citation and tooling |
Compression set per ASTM D395; biocompatibility basis per the ISO 10993 series and USP Class VI; the sterilization method, dose, validation, and instrument clearance belong to the instrument maker.
A worked example
Say you send: a fluid-path seal on a reusable instrument, reprocessed by repeated steam autoclave at a stated cycle count, no aggressive chemistry, high-purity patient-contact so low extractables required, gland geometry as a DXF, ISO 10993 series and USP Class VI basis wanted, 100 prototype and 6,000 per year.
From that, engineering would point at a platinum-cured solid silicone for its purity and autoclave tolerance, graded to the cumulative cycle count for compression set per ASTM D395, confirm the maker publishes the ISO 10993 and USP Class VI basis, and quote the die-cut seal. Where an aggressive cleaning chemistry were named, the recommendation would shift to a USP Class VI FFKM. That is the whole loop in one pass.
How H-O Products helps
H-O Products is a precision die-cut converter, not a raw-material producer and not the device maker. Tell us the job and the sterilization and we recommend a family and grade, then die-cut, kiss-cut, laminate, and kit the part to your drawing, with material traceability and lot-code TDS records under our ISO 9001:2015 certified quality management system in Winsted, Connecticut. Grade-level values are confirmed against the maker's current TDS, and we cite the maker's published biocompatibility basis per the ISO 10993 series and USP Class VI for your file.
Sterilization validation, biocompatibility testing, and instrument clearance stay with the instrument maker.
Frequently asked questions
What is the single most useful thing to put on a surgical-instrument RFQ?
The job and the sterilization: whether the part seals, cushions, or protects, and whether the instrument is reprocessed, with the sterilization method and cycle count. The job narrows the family and the sterilization grades the material within it, because a reusable seal graded for fifty autoclave cycles and a single-use seal graded for one gamma dose are different specifications even for the same geometry. Name the job and the sterilization first.
Do I have to send a CAD drawing, or is a sketch enough?
A sketch with the gland, grip, or tray dimensions and the job labeled is enough to start, and for a tray, the instrument outlines or the set list helps us lay out the cavities. A dimensioned drawing is better, and a DXF or STEP of the outline is best because it lets us cut a die-cut sample on your exact geometry fastest. Send whatever you have; engineering can begin from a clear sketch.
Why do you need the sterilization method and cycle count?
Because they grade the material. Repeated steam autoclave drives compression set and favors a silicone graded to the cumulative cycles; gamma or e-beam is a dose silicone tolerates well; a vaporized or gas method is a chemistry that may force an FFKM. So the method and cycle count decide the grade within the family, and a reprocessed instrument needs a material graded for the cumulative exposure, not the first cycle. Name the method and cycles and we grade accordingly.
When should I ask for a platinum-cured silicone specifically?
When a repeated patient-contact seal needs high purity and low extractables. Platinum-cured silicone is cleaner and lower in extractables than a peroxide-cured equivalent and leaves no peroxide cure byproducts, which matters when an instrument seal recontacts the patient over many reprocessing cycles. Tell us if a high-purity, low-extractables seal is required and we specify a platinum-cured grade; for less demanding contact, other medical silicone grades may suffice.
When do I need to tell you about an aggressive chemistry?
Whenever the part sees a harsh cleaning agent, an aggressive reagent, or a high-temperature exposure that might exceed silicone. That is what forces a step from silicone to a USP Class VI FFKM, the most chemically and thermally resistant elastomer family. Name the chemistry and the temperature and we confirm whether a platinum-cured silicone suffices or an FFKM is warranted, so the seal is matched to the exposure.
How do I tell you about a tray liner?
Send the instrument outlines or the set list and the tray envelope, and tell us the sterilization method the tray goes through. We die-cut a crosslinked polyethylene or EVA foam to hold each instrument, graded to tolerate the route, with cavities sized to the instruments. The tray never contacts the patient, so it has wider material latitude than a seal, but it still has to survive the sterilization, which the method and cycle count tell us.
What biocompatibility information should I include?
Whether the part contacts the patient and what biocompatibility basis your file needs cited. We convert materials whose makers publish a basis per the ISO 10993 series, such as cytotoxicity, sensitization, and irritation endpoints, and USP Class VI where applicable, and we pass it through with traceability. We do not perform the testing or clear the instrument, so naming the basis you need lets us point you at a material whose maker publishes it.
Can you match a material I already have on the parent page?
Yes. Name the family or grade you have in mind, such as a platinum-cured solid silicone or a USP Class VI FFKM, and we confirm it against the job and the sterilization you describe and quote it as a die-cut part. If the sterilization method or chemistry makes it a poor fit, we flag that and suggest an alternative. The job and the sterilization are what we check the material against.
How fast can I get a sample once I send the spec?
For common die-cut configurations on materials we keep on hand, samples typically ship in 3 to 5 business days, and sending a DXF or STEP of the outline is the fastest path because we cut on your exact geometry. Standard production runs about two weeks after drawing approval, and expedited service is available. MOQ varies by material and part. A complete checklist on the first pass keeps the sample loop short.
Does H-O validate the sterilization or certify the instrument?
No. H-O converts the sealing, cushioning, and tray materials to your drawing and supplies material traceability and lot-code TDS records that support your file. Validating the sterilization, performing biocompatibility testing per the ISO 10993 series, and clearing the instrument belong to the instrument maker and its test houses. Our deliverable is the converted, die-cut part, made repeatably and traceably to your spec.
What do I send to get a surgical-instrument quote?
Name the job and whether the instrument is reprocessed, the sterilization method and cycle count, any aggressive chemistry or high temperature, the purity or extractables requirement for a patient-contact seal, the gland, grip, or tray geometry, the biocompatibility basis your file needs, and the quantities. With that, engineering recommends a family and grade, flags where a method change would warrant a different family, and quotes a die-cut part in one pass.
Send your surgical-instrument spec for a quote
Name the job and the sterilization method and cycle count, say whether the instrument is reprocessed, and send the geometry plus the quantities, and we will recommend a family and grade and quote a die-cut part to your drawing.
Samples typically ship in 3 to 5 business days for common die-cut configurations on materials we keep on hand; standard production runs about two weeks after drawing approval; expedited service is available. MOQ varies by material and part.
Family-owned in Winsted, Connecticut since 1971 · ISO 9001:2015 certified · OEMs worldwide send us a drawing — and get back their part.
Related reading
Request a quote for your surgical-instrument part
Name the job and the sterilization route and send the geometry—engineering reviews every RFQ and converts samples on your geometry.
Last updated · Reviewed by H-O Products engineering (ISO 9001:2015 certified converter, Winsted, CT).
References
- ASTM D395 (compression set, the aging mode behind a seal that relaxes over repeated autoclave cycles).
- ISO 10993 series (biological evaluation endpoints) and USP Class VI, cited by designation as the biocompatibility basis named on each maker data sheet, including the platinum-cured silicone and FFKM grades.
- Manufacturer technical data sheets for the platinum-cured and solid medical silicone, USP Class VI FFKM, and silicone, PORON, crosslinked polyethylene, and EVA foam grades named on the parent application page.
This article summarizes material-selection and design principles for surgical-instrument sealing, grips, and tray liners using the families and published test methods cited on the parent application page. Comparisons are qualitative; per-grade values are maker technical-data-sheet figures and must be confirmed on the manufacturer's current TDS at your installed condition. Standards (ISO 10993, USP Class VI, ISO 11607, IEC, ASTM, UL) are cited by designation for context, not as a claim of qualification or registration.
H-O Products is a precision die-cut converter, not a raw-material producer and not the device maker; biocompatibility testing, sterilization validation, device clearance, and final-assembly certification belong to the device owner and its test houses.