K201634 · Chengdu Shifeng Medical Technology Co., Ltd. · MRZ · Mar 26, 2021 · General Hospital
Device Facts
Record ID
K201634
Device Name
RG 3ml Medication Cartridge
Applicant
Chengdu Shifeng Medical Technology Co., Ltd.
Product Code
MRZ · General Hospital
Decision Date
Mar 26, 2021
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 880.5725
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The RG 3ml Medication Cartridge is designed for use in hospitals and outpatient care environments with the CADD-MS3 Ambulatory Infusion Pump for subcutaneous infusion of medication in adults.
Device Story
RG 3ml Medication Cartridge is a sterile, single-use, 3.0 ml piston syringe; functions as a reservoir for medication delivery via CADD-MS3 Ambulatory Infusion Pump. Device consists of hollow barrel, movable plunger with O-rings, and male Luer lock fitting. User fills cartridge from vial using attached needle; removes plunger stopper; inserts into pump; secures with pump cartridge cap; attaches infusion set to Luer lock. Used in hospitals and outpatient environments by clinicians or patients. Output is controlled medication delivery via pump. Benefits include compatibility with existing ambulatory infusion infrastructure for subcutaneous therapy.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing including biocompatibility (ISO 10993 series), sterility (ISO 11135), packaging integrity (ASTM F2096, F1929, F1886, D4169, ISO 11607-2), and mechanical performance testing (ISO 7886-2, occlusion alarms, cartridge loading/detection, and volume alarms) using the CADD-MS3 pump.
Technological Characteristics
3.0 ml piston syringe; male Luer lock fitting; sterile; single-use; ethylene oxide sterilization (SAL 10^-6). Biocompatibility per ISO 10993-1. Mechanical performance per ISO 7886-2. No electronic or software components.
Indications for Use
Indicated for subcutaneous infusion of medication in adults using the CADD-MS3 Ambulatory Infusion Pump in hospital and outpatient settings.
Regulatory Classification
Identification
An infusion pump is a device used in a health care facility to pump fluids into a patient in a controlled manner. The device may use a piston pump, a roller pump, or a peristaltic pump and may be powered electrically or mechanically. The device may also operate using a constant force to propel the fluid through a narrow tube which determines the flow rate. The device may include means to detect a fault condition, such as air in, or blockage of, the infusion line and to activate an alarm.
Predicate Devices
Smiths Medical MD, Inc. CADD-MS®3 Ambulatory Infusion Pump (K051568)
Submission Summary (Full Text)
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March 26, 2021
Chengdu Shifeng Medical Technology Co., Ltd. % Maureen O'Connell President O'Connell Regulatory Consultants, Inc. 44 Oak Street Stoneham, Massachusetts 02180
Re: K201634
Trade/Device Name: RG 3ml Medication Cartridge Regulation Number: 21 CFR 880.5725 Regulation Name: Infusion Pump Regulatory Class: Class II Product Code: MRZ Dated: February 23, 2021 Received: February 23, 2021
Dear Maureen O'Connell:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to 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.
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
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requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801 and Part 809); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
For CAPT Alan Stevens Acting Director DHT3C: Division of Drug Delivery and General Hospital Devices, and Human Factors OHT3: Office of Gastrorenal, ObGyn, General Hospital and Urology Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K201634
Device Name RG 3ml Medication Cartridge
Indications for Use (Describe)
The RG 3ml Medication Cartridge is designed for use in hospitals and outpatient care environments with the CADD-MS3 Ambulatory Infusion Pump for subcutaneous infusion of medication in adults.
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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### K201634 510(k) SUMMARY
### Chengdu Shifeng Medical Technology Co., Ltd. RG 3ml Medication Cartridge
#### 510(k) Owner
Chengdu Shifeng Medical Technology Co., Ltd. No 31, Yinyuan Road Jinhua Town Xinjin County Chengdu, Sichuan, China
#### Submission Correspondent
Maureen O'Connell O'Connell Regulatory Consultants, Inc. 44 Oak Street Stoneham, MA 02180 Phone: 978-207-1245
Date Prepared: March 26, 2021
#### Subject Device
| Trade Name: | RG 3ml Medication Cartridge |
|------------------------|-----------------------------|
| Common or Usual Name: | Infusion Pump Syringe |
| Classification Name: | Pump, Infusion |
| Device Classification: | 21 CFR 880.5725 |
| Class | II |
| Product Code: | MRZ |
| Classification Panel: | General Hospital |
#### Predicate Device
| Trade Name: | Smiths Medical MD, Inc. CADD-MS®3 Ambulatory Infusion Pump |
|------------------------|------------------------------------------------------------|
| 510(k) Reference: | K051568 |
| Common or Usual Name: | Infusion Pump Syringe |
| Classification Name: | Pump, Infusion |
| Device Classification: | 21 CFR 880.5725 |
| Class | II |
| Product Code: | FRN |
| Classification Panel: | General Hospital |
### Device Description
The RG 3ml Medication Cartridge is a sterile, single-use, non-pyrogenic, 3.0 ml piston syringe intended for use with the Smiths Medical MD, Inc. CADD-MS®3 Ambulatory Infusion Pump. The CADD-MS®3 Ambulatory Infusion Pump requires use of a 3 ml medication cartridge and an infusion set. The RG 3ml Medication Cartridge consists of a hollow barrel, movable plunger with
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O-rings for sealing and a male Luer lock fitting at the distal end. The male Luer lock fitting of the cartridge is connected to the female Luer fitting of an infusion set. The reservoir is placed in the CADD-MS®3 Ambulatory Infusion Pump to achieve its intended use. The RG 3ml Medication Cartridge is available with a 0.7mm (22G) x 12.5mm (1/2in.) needle and cap. The needle is attached to the end of the RG 3ml Medication Cartridge and operates as a syringe to withdraw medication from a vial.
After the medication is filled in the RG 3ml Medication Cartridge, the plunger stopper is removed to allow the RG 3ml Medication Cartridge to fit inside the Smiths CADD-MS®3 Infusion Pump. A cartridge cap from the Smiths CADD-MS®3 Infusion Pump secures the RG 3ml Medication Cartridge into place. An infusion set is then attached to the luer lock fitting of the RG 3ml Medication Cartridge.
# Indications for Use
The RG 3ml Medication Cartridge is designed for use in hospitals and outpatient care environments with the CADD-MS®3 Ambulatory Infusion Pump for subcutaneous infusion of medication in adults.
# Comparison of Technological Characteristics with the Predicate Device
Table 1 provides a tabular presentation of the RG 3ml Medication Cartridge compared with the predicate device. Both the subject device and the 3 ml cartridge component of the predicate device are intended for use in delivering medication utilizing the CADD-MS®3 Ambulatory Infusion Pump. The table below also assess the differences to demonstrate that there no new or different questions of safety and effectiveness between the subject and predicate device.
| RG 3ml Medication Cartridge Substantial Equivalence | | | |
|-----------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Characteristic | RG 3ml Medication<br>Cartridge | Smiths Medical MD,<br>Inc. CADD-MS®3<br>Ambulatory Infusion<br>Pump, 3 mL<br>Cartridge Reservoir | Discussion of<br>Differences |
| 510(k) Number | K201634 | K051568 | N/A |
| Product Code | MRZ | FRN | Both are within<br>Infusion pump<br>regulation : 21 CFR<br>880.5725, which<br>supports substantial<br>equivalence |
| Indications for Use | The RG 3ml Medication<br>Cartridge is designed<br>for use in hospitals and<br>outpatient care<br>environments with the<br>CADD-MS®3<br>Ambulatory Infusion<br>Pump for subcutaneous | The Smiths Medical<br>Inc. 3 ml Cartridge<br>Reservoir Indications<br>for use are:<br>The Smiths Medical<br>MD, Inc. 3-ml<br>Cartridge Reservoir is<br>designed for use with | The predicate device<br>includes both a pump<br>and cartridge. The<br>subject device<br>indications are<br>compared to the<br>cartridge indications<br>for use and support |
| Table 1 |
|-----------------------------------------------------|
| RG 3ml Medication Cartridge Substantial Equivalence |
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| | infusion of medication<br>in adults. | the CADD-MS 3 for<br>delivering medication. | substantial<br>equivalence |
|------------------|---------------------------------------------------------------------------------------------|-----------------------------------------------|----------------------------|
| Use Type | Prescription Use | Prescription Use | Same |
| Cartridge Use | With CADD-MS <span style="vertical-align: super;">®</span> 3<br>Ambulatory Infusion<br>Pump | With CADD-MS 3<br>Ambulatory Infusion<br>Pump | Same |
| Volume | 3 ml | 3 ml | Same |
| Sterility Status | Sterile, single use | Sterile, single use | Same |
| Biocompatibility | Yes per ISO 10993-1 | Yes per ISO 10993-1 | Same |
## Non-Clinical Performance Testing
The following non-clinical/performance testing was used to support substantial equivalence:
The materials used for the RG 3ml Medication Cartridge comply with biocompatibility requirements outlined in ISO 10993-1:2009 and the Guidance for Industry and Food and Drug Administration Staff, Use of International Standard ISO 10993 Biological Evaluation of Medical Devices Part 1: Evaluation and Testing within a Risk Management Process and are considered to be biocompatible.
The following biocompatibility testing was performed:
| Test | Standard |
|----------------------------------------------------|--------------------|
| Cytotoxicity | ISO 10993-5:2009 |
| Dermal Sensitization | ISO 10993-10:2010 |
| Intracutaneous Irritation Test | ISO 10993-10 :2010 |
| Acute Systemic Toxicity | ISO 10993-11 :2017 |
| Subacute Toxicity | ISO 10993-11 :2017 |
| Pyrogenicity | ISO 10993-11 :2017 |
| Hemolysis (Direct Contact<br>and Indirect Contact) | ISO 10993-4:2017 |
The device has a 2-year shelf life. This was supported by sterility, packaging, and performance testing.
Ethylene Oxide is used to sterilize the device and validation was provided per FDA recognized standard ISO 11135: 2014 - Sterilization of health care products - Ethylene oxide - Requirements for development, validation and routine control of a sterilization process for medical devices. A sterility assurance level (SAL) was validated to 10-6.
Packaging testing was also conducted via the following FDA recognized standards: ASTM F2096 (Bubble Test), ASTM F1929 (Dye Penetration Test), ASTM F1886 (Visual Inspection), STM D4169 (Simulated Shipping), and ISO 11607-2 (General Packaging Standard). In addition, seal strength testing was conducted on the packaging.
The following performance testing was conducted using Smiths Medical MD, Inc. CADD-MS®3 Ambulatory Infusion Pump:
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- . ISO 7886-2:2020 (Flow rate testing using the Smiths Medical MD, Inc. CADD-MS®3 Ambulatory Infusion Pump)
- . Occlusion Alarm Testing
- Cartridge Loading and Detection Testing ●
- Cartridge Volume Alarm Testing ●
In order to establish compatibility with the CADD-MS 3 Ambulatory Infusion Pump and demonstrate adequate performance within the pump specifications as compared to the Smiths Medical CADD-MS 3 Cartridge Reservoir, flow rate accuracy testing was conducted using the RG 3 mL Medication Cartridge and the CADD-MS 3 Ambulatory Infusion Pump. Results showed that the RG 3ml Medication Cartridge when used with the CADD-MS®3 Ambulatory Infusion Pump passed all testing required in ISO 7886-2 and flow rate testing within pump specifications, supporting substantial equivalence to the predicate device.
## Conclusion
Differences between the intended use and technological characteristics of the subject device compared to the predicate do not raise different questions of safety and effectiveness. The performance of the device is supported by non-clinical testing and risk management activities. The RG 3ml Medication Cartridge is Substantially Equivalent (SE) to the Smiths Medical MD. Inc. CADD-MS®3 Ambulatory Infusion Pump, 3 mL Cartridge Reservoir, cleared under K051568.
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.