SUMMIT MEDICAL LTD TRANSFUSION FILTER, MODEL LF400 & SUMMIT MEDICAL LTD TRANSFUSION FILTER WITH ADMINISTRATION SET
K022477 · Summit Medical , Ltd. · CAK · Oct 25, 2002 · General Hospital
Device Facts
Record ID
K022477
Device Name
SUMMIT MEDICAL LTD TRANSFUSION FILTER, MODEL LF400 & SUMMIT MEDICAL LTD TRANSFUSION FILTER WITH ADMINISTRATION SET
Applicant
Summit Medical , Ltd.
Product Code
CAK · General Hospital
Decision Date
Oct 25, 2002
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 880.5440
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Summit Medical Transfusion Filter is intended for the filtration of up to one unit of intra-operative or post-operative salvaged blood, for the reduction of lipid particles, anaphylatoxin C3a, microaggregates and leucocytes. It is indicated for the reinfusion of blood derived from the surgical site or post-operative wound drainage.
Device Story
Device is a sterile, single-use transfusion filter assembly, optionally including an administration set with drip chamber and roller clamp. It connects to a blood bag via a spike port. Operation involves inverting the bag to prime the filter, then hanging the system on a drip stand. Flow rate is regulated by the roller clamp. The device uses a 40-micron absolute rated screen filter to remove microaggregates, lipid particles, anaphylatoxin C3a, leucocytes, and non-blood particulate matter from salvaged blood. Used in clinical settings for reinfusion of salvaged blood to patients. Benefits include reduction of potentially harmful components in salvaged blood prior to reinfusion.
Clinical Evidence
Bench testing only. Testing included bubble point, pressure leak, particulate cleanliness, mechanical and hydrostatic testing of bonded joints, microbiological bioburden, and endotoxin validation. Biocompatibility testing performed per ISO 10993 (Cytotoxicity, Sensitization, Irritation/Intracutaneous Reactivity, Acute Systemic Toxicity, and Haemocompatibility). Sterilization validated per ISO 11137.
Technological Characteristics
40-micron absolute rated screen filter medium. Sterile, single-use assembly. Gamma sterilized per ISO 11137. Biocompatibility per ISO 10993. Low priming volume, free-flow design.
Indications for Use
Indicated for filtration of up to one unit of intra-operative or post-operative salvaged blood for reinfusion of blood derived from surgical sites or post-operative wound drainage.
Regulatory Classification
Identification
An intravascular administration set is a device used to administer fluids from a container to a patient's vascular system through a needle or catheter inserted into a vein. The device may include the needle or catheter, tubing, a flow regulator, a drip chamber, an infusion line filter, an I.V. set stopcock, fluid delivery tubing, connectors between parts of the set, a side tube with a cap to serve as an injection site, and a hollow spike to penetrate and connect the tubing to an I.V. bag or other infusion fluid container.
Special Controls
*Classification.* Class II (special controls). The special control for pharmacy compounding systems within this classification is the FDA guidance document entitled “Class II Special Controls Guidance Document: Pharmacy Compounding Systems; Final Guidance for Industry and FDA Reviewers.” Pharmacy compounding systems classified within the intravascular administration set are exempt from the premarket notification procedures in subpart E of this part and subject to the limitations in § 880.9.
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1622477
Summit Medical Ltd
Transfusion Filter 510(k) Attachment 7
#### 510(k) Summary
#### Summit Medical Transfusion Filter
#### Manufacturer
Summit Medical Ltd Industrial Park Bourton on the Water Gloucestershire GL54 2HQ United Kingdom
#### Contact
James Bradbury Requlatory Affairs Manager E-mail: james.Bradbury@summit-medical.co.uk 011 (44) 1451 821311 Tel 011 (44) 1451 821092 Fax
#### Device Name
Transfusion Filter
#### Classification Name
Microfilter, Blood Transfusion
#### Predicate Product
SQ40 Blood Transfusion Filter, Pall Biomedical Products Co. (K960993)
#### Product Description
The Transfusion Filter device consists of a sterile, single wrapped package, containing a filter assembly, with or without an administration set. The administration set is fitted with a drip chamber and roller clamp.
The filter unit is connected to a flexible bag containing the blood to be reinfused via a spike port in the bag. The filter is primed by holding the bag inverted, with the filter above the bag, then squeezing the bag to
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#### Summit Medical Ltd
#### Transfusion Filter 510(k) Attachment 7
force blood through the filter medium and to the desired level within the drip chamber.
The roller clamp is then closed, and the system hung on a drip stand ready for use. The administration line can then be primed and connected to the patient according to clinical practice, and the rate of blood flow to the patient requlated by adjusting the roller clamp.
#### Substantial Equivalence
The Summit Medical Transfusion Filter is substantially equivalent specifically to the Pall Biomedical Products Co. SQ40 Blood Transfusion Filter (K960993), in that they are designed with the same design principles, made of the same materials, and have the same indications and contraindications for use.
#### Indications for Use
The Summit Medical Transfusion Filter is intended for the filtration of up to one unit of intra-operative or post-operative salvaged blood, for the reduction of lipid particles, anaphylatoxin C3a, microaggregates and leucocytes. It is indicated for the reinfusion of blood derived from the surqical site or post-operative wound drainage.
#### Safety and Effectiveness
Performance testing carried out includes bubble point testing, pressure leak tests, particulate cleanliness, mechanical and hydrostatic testing of bonded joints, microbiological bioburden and endotoxin validation.
The device is Gamma sterilised, validation of which was carried out in accordance with ISO 11137.
Biocompatibility testing was carried out in accordance with ISO 10993, and includes Cytotoxicity, Sensitization, Irritation or Intracutaneous Reactivity, Acute Systemic Toxicity and Haemocompatibility.
The test results achieved demonstrate that the device meets the applicable standards, is biocompatible, and performs in accordance with design specifications.
No safety or effectiveness issues are raised when the Summit Medical Transfusion Filter is compared with the predicate product, and therefore the Summit Medical Transfusion Filter is substantially equivalent to the Pall SQ40 Blood Transfusion Filter (K960993).
James Bradbury
Regulatory Affairs Manager
Summit Medical
Date: 25 July 2002
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#### DEPARTMENT OF HEALTH & HUMAN SERVICES
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Summit Medical Ltd. c/o Mr. Neil R. Armstrong MeddiQuest Ltrd. Business and Technology Centre, Bessemer Drive, Stevenage, SG1 2DX United Kingdom
Re: K022477
Summit Medical Transfusion Filter Regulation Number: 880.5440 Regulation Name: Microfilter, Blood Transfusion Regulatory Class: II (two) Product Code: 74 CAK Dated: July 26 2002 Received: July 29 2002
Dear Mr. Armstrong:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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#### Page 2 – Mr. Neil R. Armstrong
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050. This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 21 CFR Part 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4646. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely vours.
W
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Summit Medical Ltd
Transfusion Filter 510(k) Attachment 8
### dications for Use
510(k) Number:
Device Name:
Summit Medical Transfusion Filter
Indications for Use:
The Summit Medical Transfusion Filter is intended for the filtration of up to one unit of intra-operative or post-operative salvaged blood, for the reduction of lipid particles, anaphylatoxin C3a, microaggregates and leucocytes. It is indicated for the reinfusion of blood derived from the surgical site or postoperative wound drainage.
| (PLEASE DO NOT WRITE BELOW THIS LINE) | |
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| Concurrence of CDRH, Office of Device Evaluation(ODE) | |
| Division of Cardiovascular & Devices | |
| 510(k) Number | K062447 |
| Prescription Use | <span style="text-decoration: underline;">✓</span> OR Over-the-counter Use <span style="text-decoration: underline;"></span> |
| (Per 21 CFR 801.109) | |
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# Description
The transfusion filter is a free-flow, low priming volume device which provides a 40 micron absolute rated screen filter medium for the removal of potentially harmful blood component microaggregates and non-blood component particulate matter.
# Indications
Transfusion of stored blood, packed red cells, platelet and granulocyte concentrations and filtration of ViaSpan® (Cold Storage Solution).*
* ViaSpan® is a registered trademark of Dupont-Merck.
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.