Retrospective clinical use data (Western Australia, 2002-2011)
The sponsor presented retrospective clinical performance data from 2,148 cases to support the safety and effectiveness of the Singh Colpotomizer System in laparoscopic hysterectomy procedures.
Clinical use of the device in Western Australia; Retrospective clinical case series; Study Period: 2002-2011
Women undergoing laparoscopic hysterectomy; Sample Size: 2148
Not applicable for this study
Maintenance of pneumoperitoneum, successful completion of laparoscopic procedure, and incidence of adverse events (uterine perforation, ureteric injury, bladder injuries, vaginal vault bleeding, rectal injury).
Indications for Use
The Singh Colpotomizer System is indicated for use by a surgeon in laparoscopic procedures where uterine manipulation and visualization of the position of the vaginal fornices for colpotomy incisions is required. The surgeon makes the colpotomy incisions to access or remove intraperitoneal tissue.
Device Story
Reusable uterine manipulator system for laparoscopic hysterectomy; consists of uterine manipulator with cervical screw, sliding inner rod, sliding/rotating funnels (35mm/40mm), and vaginal plug. Surgeon inserts uterine cannula into uterus; slides funnel onto cannula; rotates funnel manually to lift vaginal wall, identifying uterine arteries/ureters for incision. Inner rod retracts to accommodate variable uterine lengths and prevent interference during morcellation. Cervical screw secures device position. Funnel provides landmark for colpotomy and maintains pneumoperitoneum. Uterus acts as vaginal plug post-colpotomy to prevent CO2 leakage during vault suturing. Used in clinical/OR settings by surgeons to facilitate tissue access/removal and maintain pneumoperitoneum.
Clinical Evidence
Retrospective clinical data from 2,148 cases (2002-2011) presented. Primary endpoints: successful laparoscopic completion and maintenance of pneumoperitoneum. Results: 100% success rate (2,148/2,148) for both endpoints. Adverse events reported: 1 ureteric injury, 6 bladder injuries, 7 vaginal vault bleedings, 1 rectal injury; 0 cases of uterine perforation.
Indicated for use by surgeons during laparoscopic procedures requiring uterine manipulation and visualization of vaginal fornices for colpotomy incisions to access or remove intraperitoneal tissue.
Regulatory Classification
Identification
A culdoscope is a device designed to permit direct viewing of the organs within the peritoneum by a telescopic system introduced into the pelvic cavity through the posterior vaginal fornix. It is used to perform diagnostic and surgical procedures on the female genital organs. This generic type of device may include trocar and cannula, instruments used through an operating channel, scope preheaters, light source and cables, and component parts.
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| Preparation Date: | September 29, 2011 | <span style="float:right">K110819<br/>OCT - 5 2011</span> |
|---------------------------|---------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------|
| Submission Correspondent: | Emergo Group, Inc.<br>www.emergogroup.com/ | |
| Address: | 611 West 5th Street, Third Floor<br>Austin, TX 78701 | |
| Phone: | (512) 327-9997 | |
| Fax: | (512) 327-9998 | |
| Contact: | Caroline Tontini | |
| Submission Sponsor: | Surgitools Pty Ltd.<br>231 Timberlane Drive<br>Woodvale, W.Australia, 6026<br>Australia<br>Phone: +618 93093222<br>Fax: +618 93093736 | |
| Device Trade Name: | Singh Colpotomizer System | |
| Device Common Name: | Uterine Manipulator and Vaginal Delineator | |
| Classification Name: | Culdoscope (and Accessories) 884.1640, HEW | |
| Device Class: | 2 | |
Legally Marketed Devices to which Substantial Equivalence is Claimed: The Koh Colpotomizer System 510(k) Number: K954311
CooperSurgical, Inc
#### Intended Use:
The Singh Colpotomizer System is indicated for use by a surgeon in laparoscopic procedures where uterine manipulation and visualization of the position of the vaginal fornices for colpotomy incisions is required. The surgeon makes the colpotomy incisions to access or remove intraperitoneal tissue.
# Device Description:
The Singh Colpotomizer System is comprised of a reusable uterine manipulator with cervical screw attachment, a reusable sliding uterine tip (inner rod), reusable sliding and rotating funnels with a lip acting as a colpotomizer, an O ring and screw to hold the funnel in place, and a vaginal plug. The funnels are available in two sizes: 35 and 40mm.
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In Laparoscopic Hysterectomy, the Uterine Cannula is inserted into the Uterus. The Vaginal Funnel slides onto the Uterine Cannula and is rotated manually during the operation to lift the Vaginal Wall for identification and incision during Laparoscopic Hysterectomy. This identifies the uterine arteries and ureters during this procedure.
Stainless steel and medical grade plastics are used in the manufacture of the subject device.
### Comparison to the Predicate Device:
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The Singh Colpotomizer System has the same intended use as the Koh Colpotomizer System. The two devices use slightly different design features to achieve the same results; i.e. anterversion and retroversion of uterus, providing a landmark for vaginal vault incision, and maintenance of pneumoperitoneum during colpotomy and vaginal vault closure.
Both devices have 35mm and 40mm colpotomizers.
Both devices are provided non sterile and contain reusable components. All components of the Singh Colpotomizer System are reusable. The predicate device's silicon parts and balloons must be discarded after one use.
The subject device's inner rod can be retracted to fit variable uterine lengths. The predicate device's uterine tips are not retractable and require a range of uterine to fit various uterine lengths.
The Singh Colpotomizer System has a cervical screw on manipulator screws into the endocervical canal and maintains the device in position; while the predicate device features a balloon in the uterine tip which is inflated to hold the device within the uterus.
The Singh funnel is solid and selecting the correct sized non-fenestrated funnel, to provide a snug fit at the vaginal vault to prevent leakage of CO2. The Koh Colpo-Pneumo Occluder balloon is inflated prior to making colpotomy incisions to prevent CO2 leakage.
During uterine morcellation with the subject device, the stainless steel inner rod of the subject device can be retracted so that it does not interfere with the morcellator. Whereas in the predicate device, the plastic uterine tip and balloon cannot be retracted during uterine morcellation.
Similar to the predicate device, the uterus is pulled into the vagina after the colpotomy incisions are completed and acts as a vaginal plug to prevent CO2 leakage while the vaginal vault is sutured. Alternatively, the Singh Colpotomizer utilizes two other methods to maintain pneumoperitoneum if the uterus has been morcellated before delivery.
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# Summary of Non-Clinical Data Submitted:
The following testing has been performed to support substantial equivalence: Automated and Manual Cleaning Evaluation Reports according to AAMI TIR30:2003, Steam Sterilization Validation Report using the biological indicator (Bl) overkill method, ISO Guinea Pig Maximization Sensitization Test, ISO Mucosal (Vaginal) Irritation Test to ISO 10993-10:2002, ISO Acute Systemic Injection Test to ISO 10993-11:2006, MEM Elution Test to ISO 10993-5:2009, and Mediated Pyrogen Test to ISO 10993-11:2006.
# Discussion of Clinical Tests Performed:
Clinical performance data from the clinical use of the device in Western Australia since 2002 was presented.
| Number of cases: | 2148 |
|-----------------------------------------------------------|-----------------------------------|
| Number of women included in the study: | 2148 |
| Summary of adverse events: | No cases of uterine perforation |
| | 1 case of ureteric injury |
| | 6 cases of bladder injuries |
| | 7 cases of vaginal vault bleeding |
| | 1 case of rectal injury |
| Number of cases in which pneumoperitoneum was maintained: | 2148 |
| Number of cases successfully completed laparoscopically: | 2148 |
# Conclusion:
By definition, a device is substantially equivalent to a predicate device when the device has the same intended use and the same technological characteristics as the previously cleared predicate device, or has the same intended use and different technological characteristics, and it can be demonstrated that the device is substantially equivalent to the predicate device, and that the new device does not raise different questions regarding its safety and effectiveness as compared to the predicate device.
lt has been shown in this 510(k) submission that the differences between the Singh Colpotomizer System and the predicate device do not raise any questions regarding its safety and effectiveness. The Singh Colpotomizer System, as designed and manufactured, is determined to be substantially equivalent to the referenced predicate devices.
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Image /page/3/Picture/1 description: The image shows a circular logo with a stylized depiction of the U.S. Department of Health and Human Services (HHS) symbol in the center. The HHS symbol consists of three wavy lines that resemble a stylized human figure. The text "U.S. Department of Health and Human Services" is arranged around the perimeter of the circle.
Food and Drug Administration 10003 New Flampshire Avenne Document Control Room - WO66-G609 Silver Spring, MD 20993-0002
Surgitools Pry Ltd. % Ms. Caroline Tontini Project Manager Emergo Group 611 West 310 Street, Third Floor AUSTIN TX 78701
0CT -- 5 201
Re: K110819
Trade/Device Name: Singh Colpotomizer System Regulation Number: 21 CFR\$ 884.1640 Regulation Name: Culdoscope and accessories Regulatory Class: II Product Code: HEW, LKF Dated: August 30, 2011 Received: September 1. 2011
Dear Ms. Tontini:
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. Please note: CDRH does not evaluate information related to contract liability warranties. Wc 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 requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related
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### Page 2
adverse events) (21 CFR 803); 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.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportalProblem/dcfault.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Hubert Lewer MD
Herbert P. Lemer, M.D., Director (Acting) Division of Reproductive, Gastro-Renal and Urological Devices Office of Device Evaluation Center for Devices and Radiological Health.
Enclosure
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# Indications for Use
510(k) Number (if known): ______________ K110819
Singh Colpotomizer System Device Name:
Indications For Use:
The Singh Colpotomizer System is indicated for use by a surgeon in laparoscopic procedures where uterine manipulation and visualization of the position of the vaginal fornices for colpotomy incisions is required. The surgeon makes the colpotomy incisions to access or remove intraperitoneal tissue.
Prescription Use X (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Helent Kunn
(Division Sign-Off)
Division of Reproductive, Gastro-Renal, and
Urological Devices
510(k) Number K110819
Page 1 of 1
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.