K963339 · Coherent Medical Group · GEX · Jan 22, 1997 · General, Plastic Surgery
Device Facts
Record ID
K963339
Device Name
COHERENT ULTRAPULSE CO2 SURGICAL LASERS
Applicant
Coherent Medical Group
Product Code
GEX · General, Plastic Surgery
Decision Date
Jan 22, 1997
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4810
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers (and its delivery accessories) are intended to be used to deliver carbon dioxide light energy for use in surgical applications requiring the ablation, vaporization, excision, incision, and coagulation of soft tissue in a variety of medical specialties.
Device Story
Device delivers CO2 laser energy for soft tissue surgery; console/tower system with articulated arm, control panels, footswitch/handswitch, and various delivery accessories (handpieces, scanners, waveguides, micromanipulators). Operated by physicians in clinical/surgical settings. Laser energy ablates/vaporizes/excises/coagulates tissue; provides hemostasis and visualization. Clinical benefits include faster operative times, reduced bleeding, and improved cosmetic outcomes compared to cold steel surgery. Output is controlled by the surgeon to achieve precise tissue effects.
Clinical Evidence
Clinical evidence provided via literature review and studies. Studies demonstrate CO2 laser blepharoplasty is up to 33% faster than cold steel, provides superior hemostasis, and reduces ecchymosis/edema. Hair transplantation studies show faster operative times, reduced bleeding, and increased hair density compared to cold steel. Skin resurfacing studies demonstrate increased sub-epidermal collagen.
Technological Characteristics
CO2 laser system; articulated arm delivery; includes console, tower, control/display panels, footswitch/handswitch, remote control, and filtered air pump purge system. Accessories include handpieces, scanners, waveguides, micromanipulators, optical couplers, and laparoscopic adapters.
Indications for Use
Indicated for soft tissue ablation, vaporization, excision, incision, and coagulation in dermatology, plastic surgery, podiatry, neurosurgery, gynecology, otorhinolaryngology (ENT), arthroscopy, and general surgery (open/endoscopic). Specific applications include skin resurfacing (wrinkles, rhytids, furrows), blepharoplasty, hair transplantation recipient sites, wart removal, matrixectomy, and treatment of various lesions, tumors, and neoplasms.
Regulatory Classification
Identification
(1) A carbon dioxide laser for use in general surgery and in dermatology is a laser device intended to cut, destroy, or remove tissue by light energy emitted by carbon dioxide.(2) An argon laser for use in dermatology is a laser device intended to destroy or coagulate tissue by light energy emitted by argon.
Sharplan Carbon Dioxide SilkLaser with FeatherTouch and SilkTouch (K960521 & K955621)
Submission Summary (Full Text)
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# Attachment 15
510(k) Summary Statement for K963339 the
Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers
## I. General Information
**Submitter:** Coherent Medical Group
3270 West Bayshore Road
Palo Alto, CA 94303
**JAN 22 1997**
**Contact Person:** Anne C. Worden
**Summary Preparation Date:** Revised November 27, 1996
## II. Names
**Device Names:** Coherent ULTRAPULSE Family of Carbon Dioxide Surgical Lasers and Delivery Accessories.
**Primary Classification Name:** Laser Powered Surgical Instrument (and Accessories).
## III. Predicate Devices
- Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers and Delivery Accessories (K951812 & K912029) marketed by Coherent Medical Group;
- Coherent Family of Scanner Handpieces for use with Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers (K946304) marketed by Coherent Medical Group;
- Coherent Xanar XA-50 Carbon Dioxide Surgical Laser (K853620) marketed by Coherent/Xanar
- Sharplan Carbon Dioxide SilkLaser with FeatherTouch and SilkTouch (510(k) cleared November 4, 1996 - K number unknown, K960521, & K955621)
## IV. Product Description
The Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers (and its delivery accessories) are intended to be used to deliver carbon dioxide light energy for use in surgical applications requiring the ablation, vaporization, excision, incision, and coagulation of soft tissue in a variety of medical specialties.
Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers are comprised of the following main components:
- a laser console and tower;
- a counterbalanced articulated arm and delivery system;
- control and display panels;
- footswitch and handswitch delivery controls;
- a remote control unit;
- a filtered air pump purge system; and
- a variety of delivery device accessories (handpieces, scanners, waveguides, micromanipulators, optical couplers and laparoscopic adapters, and insufflation and purge gas systems).
510(k) Coherent ULTRAPULSE
Family of Carbon Dioxide Surgical Lasers
Attachment 15 - Page 1
Page Amended November 27, 1996
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# V. Indications for Use
The Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers and the Delivery Accessories that are used with them to deliver light energy are indicated for use in surgical applications requiring the ablation, vaporization, excision, incision, and coagulation of soft tissue in medical specialties including: dermatology; plastic surgery; podiatry; neurosurgery; gynecology; otorhinolaryngology (ENT); arthroscopy (knee surgery); and open and endoscopic general surgery.
The Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers are safe and effective when indicated for use in specific surgical applications including:
## Dermatology & Plastic Surgery
- Ablation, vaporization, excision, incision, and coagulation of soft tissue in dermatology and plastic surgery (using the CPG UltraScan Handpiece or the TrueSpot family of collimated fixed and variable spot-sized handpieces) in the performance of laser skin resurfacing and laser derm-abrasion (using the CPG UltraScan Handpiece or the TrueSpot family of collimated fixed and variable spot-sized handpieces), and laser burn debridement.
- Laser skin resurfacing (ablation and/or vaporization) in dermatology and plastic surgery using the CPG UltraScan Handpiece or the TrueSpot family of collimated fixed and variable spot-sized handpieces for the treatment of wrinkles, rhytids, and furrows.
Clinical study demonstrated that skin resurfacing of wrinkles, rhytids, and furrows with the ULTRAPULSE CO₂ laser increases the amount of sub-epidermal collagen.
- Laser skin resurfacing (ablation and/or vaporization) of soft tissue in dermatology and plastic surgery for the reduction, removal, and/or treatment of actinic keratosis, solar/actinic elastosis, actinic cheilitis, lentinges, uneven pigmentation/dyschromia, acne scars, surgical scars, keloids, hemangiomas (including buccal hemangiomas), tattoos, telangiectasia, squamous cell carcinoma, epidermal nevi, xanthelasma palpebrarum, syringoma, and verrucae vulgares (warts).
## Dermatology, Plastic Surgery and General Surgery
- Laser incision and/or excision of soft tissue in dermatology, plastic and general surgery for the performance of blepharoplasty.
Clinical studies¹,²,³,⁴,⁵,⁶ demonstrate that CO₂ laser blepharoplasty provides cosmetic results that are equivalent to cold steel blepharoplasty, is up to 33% faster than cold steel blepharoplasty, provides good hemostasis and visualization of the surgical field, and results in less ecchymosis, edema, and bruising when compared to cold steel.
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1. Morrow, D.; Morrow L. CO₂ Blepharoplasty: A Comparison with Cold-Steel Surgery J Dermatol Surg Oncol 1992; 18:307-313.
2. David, L. The Laser Approach to Blepharoplasty J Dermatol Surg Oncol 1988; 14:7:741-746.
3. David, L.; Sanders G. CO₂ Laser Blepharoplasty: A Comparison to Cold Steel and Electrocautery J Dermatol Surg Oncol 1987; 13:2:110-114.
4. Baker, S.; Muenzler, W.; Small, R.; Leonard, J. Carbon Dioxide Laser Blepharoplasty Ophthalmology 1984; 91:238-244.
5. David, L.; Abergel, R. CO₂ Laser Blepharoplasty Cosmetic Surgery of the Skin: Principles and Techniques, B.C. Decker, Philadelphia, PA, 1991, Chapter 15:295-300.
6. Glassberg, E.; Babapour, R.; Lask, G. Current Trends in Laser Blepharoplasty Dermatol Surg 1995; 21:1060-1063.
510(k) Coherent ULTRAPULSE
Family of Carbon Dioxide Surgical Lasers
Attachment 15 - Page 2
Page Amended November 27, 1996
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# V. Indications for Use - Continued
## Dermatology, Plastic Surgery and General Surgery - Continued
- Laser incision and/or excision of soft tissue in dermatology, plastic and general surgery for the creation of recipient sites for hair transplantation.
Clinical studies⁷, ⁸, ⁹, ¹⁰ demonstrate that the use of ULTRAPULSE CO₂ surgical lasers, as compared to cold steel, results in faster operative times, reduced bleeding, no compression of laser created sites (due to removal of scalp tissue vaporized from laser created sites), and greater hair density (due to removal of scalp tissue vaporized from laser created sites).
## Podiatry
- Laser ablation, vaporization, and/or excision of soft tissue in podiatry for the reduction, removal, and/or treatment of verrucae vulgares (warts)
- Laser ablation, vaporization, and/or excision in podiatry for matrixectomy.
## Otorhinolaryngology (ENT)
- Laser incision, excision, ablation and/or vaporization of soft tissue in otorhinolaryngology for the treatment of choanal atresia, leukoplakia of larynx, nasal obstruction, adult and juvenile papillomatosis polyps, rhinophyma, and verrucae vulgares (warts).
## Gynecology
- Laser incision, excision, ablation and/or vaporization of soft tissue in gynecology for the treatment of cervical intraepithelial neoplasia, condyloma acuminata, leukoplakia (vulvar dystrophies), and vulvar and vaginal intraepithelial neoplasia
## Neurosurgery
- Laser incision, excision, ablation and/or vaporization of soft tissue in neurosurgery for the treatment of basal tumor-meningioma, posterior fossa tumors, peripheral neurectomy, and lipomas/large tumors.
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⁷. Unger, W. *Laser Hair Transplantation II* Dermatol Surg 1995; 21:759-765.
⁸. Fitzpatrick, R. *Laser Hair Transplantation - Tissue Effects of Laser Parameters* Dermatol Surg 1995; 21:1042-1046
⁹. Ho, C.; Nguyen, Q.; Lask, G.; Lowe, N. *Mini-Slit Graft Hair Transplantation Using the Ultrapulse Carbon Dioxide Laser Handpiece* Dermatol Surg 1995; 21:1056-1059.
¹⁰. Unger, W.; David, L. *Laser Hair Transplantation* J Dermatol Surg Oncol 1994; 20:515-521.
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510(k) Coherent ULTRAPULSE Family of Carbon Dioxide Surgical Lasers
Attachment 15 - Page 3 Page Amended November 27, 1996
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# VI. Rationale for Substantial Equivalence
The Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers and their delivery device accessories share the same indications for use, similar design features, functional features, and therefore are substantially equivalent to the Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers (K951812 & K912029), the Coherent Family of Scanner Handpieces (K946304), the Coherent Xanar XA-50 Carbon Dioxide Surgical Laser (K853620), and to the $\mathrm{CO}_{2}$ SilkLaser with FeatherTouch and SilkTouch Flash Scanners, marketed by Sharplan Lasers, Inc (510(k) cleared November 4, 1996 - K number unknown, K960521, and K955621). In addition, clinical data demonstrated that the Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers are safe and effective when indicated for use for additional specific applications in a variety of medical specialties.
# VII. Safety and Effectiveness Information
Clinical data was provided to demonstrate that the Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers are safe and effective, when indicated for use for specific applications in the medical specialties of dermatology; plastic surgery; podiatry; neurosurgery; gynecology; otorhinolaryngology (ENT); and general surgery.
# VIII. Conclusion
The Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers were found to be substantially equivalent to similar currently marketed and predicate surgical laser devices. The Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers share the same indications for use, similar design features, and similar functional features as the currently marketed Coherent ULTRAPULSE Carbon Dioxide Surgical Lasers and delivery devices, and are substantially equivalent to the Coherent Xanar XA-50 and the Sharplan SilkLaser (with FeatherTouch and SilkTouch Flash Scanners).
Clinical study results demonstrated Coherent ULTRAPULSE $\mathrm{CO}_{2}$ Surgical Lasers are safe and effective for use in a variety of specific indications for use in a variety of medical specialties including dermatology; plastic surgery; podiatry; neurosurgery; gynecology; otorhinolaryngology (ENT); and general surgery.
510(k) Coherent ULTRAPULSE
Family of Carbon Dioxide Surgical Lasers
Attachment 15 - Page 4
Page Amended November 27, 1996
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.