Who is the manufacturer of TMINI Miniature Robotic System (TMINI 1.1)?

THINK Surgical, Inc. filed the 510(k) submission for TMINI Miniature Robotic System (TMINI 1.1) (K241031).

What is the FDA product code for TMINI Miniature Robotic System (TMINI 1.1)?

OLO. It is classified under 21 CFR 882.4560 as a Class 2 device in the Neurology panel.

What is the regulatory pathway for TMINI Miniature Robotic System (TMINI 1.1)?

510(k) clearance (submission type: Traditional).

What are the predicate devices for TMINI Miniature Robotic System (TMINI 1.1)?

TMINI™ Miniature Robotic System (K232802).

Who can help prepare an FDA 510(k) submission like TMINI Miniature Robotic System (TMINI 1.1)?

Innolitics — a medical-device software consultancy — provides regulatory and engineering support for FDA 510(k) submissions. See https://innolitics.com/services/510ks/ or contact https://innolitics.com/contact.

TMINI Miniature Robotic System (TMINI 1.1)

K241031 · THINK Surgical, Inc. · OLO · Jul 12, 2024 · Neurology

Device Facts

Record ID	K241031
Device Name	TMINI Miniature Robotic System (TMINI 1.1)
Applicant	THINK Surgical, Inc.
Product Code	OLO · Neurology
Decision Date	Jul 12, 2024
Decision	SESE
Submission Type	Traditional
Regulation	21 CFR 882.4560
Device Class	Class 2

Intended Use

TMINI™ Miniature Robotic System is indicated as a stereotaxic instrumentation system for total knee replacement (TKA) surgery. It is to assist the surgeon by providing software-defined spatial boundaries for orientation and reference information to identifiable anatomical structures for the accurate placement of knee implant components. The robotic device placement is performed relative to anatomical landmarks as recorded using the system intraoperatively and based on a surgical plan determined preoperatively using CT based surgical planning tools. It includes a handheld robotic device, an optical sensor navigation system and accessories, software system, surgical instruments and accessories.

Device Story

System assists surgeons in TKA surgery via software-defined spatial boundaries for implant placement. Inputs: preoperative CT scans for 3D bone modeling; intraoperative optical tracking of femur/tibia via active markers. Operation: TPLAN workstation creates 3D surgical plan; TNav console tracks position; handheld robotic tool articulates in two degrees-of-freedom to place bone pins. Output: physical bone pins guiding cutting blocks/drill holes for implant alignment. Used in OR by surgeons. Benefits: improved accuracy/consistency in implant positioning relative to pre-planned anatomical landmarks.

Clinical Evidence

No clinical trials; bench testing only. Validation included full system run-through, cutting accuracy (pin/block placement), and quantitative/qualitative gap balance accuracy testing. Cadaver lab validation confirmed performance met specifications. Biocompatibility data leveraged from predicate.

Technological Characteristics

Stereotaxic robotic system; includes TPLAN workstation, TNav optical console, and handheld robotic tool. Uses CT-based 3D modeling. Connectivity: networked components. Materials: consistent with ISO 10993. Software-defined spatial boundaries; two-degree-of-freedom robotic articulation.

Indications for Use

Indicated for total knee replacement (TKA) surgery in patients suitable for compatible knee implant systems (Enovis EMPOWR, Ortho Development BKS/BKS TriMax, Total Joint Orthopedics Klassic, United U2).

Regulatory Classification

Identification

A stereotaxic instrument is a device consisting of a rigid frame with a calibrated guide mechanism for precisely positioning probes or other devices within a patient's brain, spinal cord, or other part of the nervous system.

Predicate Devices

TMINI™ Miniature Robotic System (K232802)

Related Devices

K250877 — TMINI Miniature Robotic System · THINK Surgical, Inc. · Jun 20, 2025
K242264 — TMINI Miniature Robotic System · THINK Surgical, Inc. · Aug 23, 2024
K230202 — TMINI Miniature Robotic System · THINK Surgical, Inc. · Apr 25, 2023
K232802 — TMINI Miniature Robotic System · THINK Surgical, Inc. · Oct 12, 2023
K253661 — TMINI Miniature Robotic System · THINK Surgical, Inc. · Dec 22, 2025

Submission Summary (Full Text)

{0}------------------------------------------------ Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, with the letters "FDA" in a blue square. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue. July 12, 2024 Think Surgical, Inc. Meliha Mulalic Vice President. OA/RA 47201 Lakeview Blvd Fremont, California 94538 Re: K241031 Trade/Device Name: TMINI Miniature Robotic System (TMINI 1.1) Regulation Number: 21 CFR 882.4560 Regulation Name: Stereotaxic Instrument Regulatory Class: Class II Product Code: OLO Dated: May 10, 2024 Received: May 13, 2024 Dear Meliha Mulalic: 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 (the 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 available 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. Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" {1}------------------------------------------------ (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download). Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100. Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181). 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 adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 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 Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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). Sincerelv. **Shumaya Ali-S** Shumaya Ali, M.P.H. Assistant Director DHT6C: Division of Restorative, Repair and Trauma Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health {2}------------------------------------------------ # Indications for Use 510(k) Number (if known) K241031 Device Name TMINI™ Miniature Robotic System (TMINI 1.1) #### Indications for Use (Describe) TMINI™ Miniature Robotic System is indicated as a stereotaxic instrumentation system for total knee replacement (TKA) surgery. It is to assist the surgeon by providing software-defined spatial boundaries for orientation and reference information to identifiable anatomical structures for the accurate placement of knee implant components. The robotic device placement is performed relative to anatomical landmarks as recorded using the system intraoperatively and based on a surgical plan determined preoperatively using CT based surgical planning tools. It includes a handheld robotic device, an optical sensor navigation system and accessories, software system, surgical instruments and accessories. The robotic device placement is performed relative to anatomical landmarks as recorded using the system intraoperatively and based on a surgical plan determined preoperatively using CT based surgical planning tools. It includes a handheld robotic device, an optical sensor navigation system and accessories, surgical instruments and accessories. The targeted population has the same characteristics as the population that is suitable for the implant(s) compatible with the TMINI™ Miniature Robotic System. The TMINI™ Miniature Robotic System is to be used with the following knee replacement system(s) in accordance with the indications and contraindications: - · Enovis™ EMPOWR Knee System® - · Ortho Development® BKS® and BKS TriMax® Knee System - · Total Joint Orthopedics Klassic® Knee System - · United® U2™ Knee Total Knee System | Type of Use (Select one or both, as applicable) | |-------------------------------------------------| |-------------------------------------------------| | <div> <input checked="true" type="checkbox"/> Prescription Use (Part 21 CFR 801 Subpart D) </div> | |-----------------------------------------------------------------------------------------------------| | <div> <input type="checkbox"/> Over-The-Counter Use (21 CFR 801 Subpart C) </div> | CONTINUE ON A SEPARATE PAGE IF NEEDED. This section applies only to requirements of the Paperwork Reduction Act of 1995. #### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.* The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to: > Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov "An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number." {3}------------------------------------------------ Image /page/3/Picture/0 description: The image shows the logo for Think Surgical. The logo features a blue sphere with a white reflection at the top, resembling a stylized "T". Below the sphere, the word "THINK" is written in bold, black capital letters, with the "I" replaced by a blue, downward-pointing triangle. Underneath "THINK", the word "SURGICAL" is written in smaller, gray capital letters. # 510(k) SUMMARY # Applicant Information: | Owner Name: | THINK Surgical, Inc. | |------------------------------------|-----------------------------------------| | Address: | 47201 Lakeview Blvd., Fremont, CA 94538 | | Phone number: | 408-921-5648 | | Fax number: | 510-249-2396 | | Establishment Registration Number: | 3000719653 | | Contact Person: | Meliha Mulalic | | Date Prepared: | 15 April 2024 | | Device Information: | | | Device Classification: | Class II | |------------------------|-----------------------------------| | Trade Name: | TMINITM Miniature Robotic System | | Common name: | Orthopedic Stereotaxic Instrument | | Classification name: | Stereotaxic Instrument | | Regulation number: | 882.4560 | | Product Code: | OLO | #### Predicate Device: The TMINI™ Miniature Robotic System (TMINI 1.1) is substantially equivalent in intended use, Indications for Use, design, materials, technology, operational principles and performance to the predicate, TMINI™ Miniature Robotic System, cleared via K232802. #### Device Modification: The purpose of this submission is to introduce a series of incremental modifications to the TMINI™ Miniature Robotic System to enhance efficiency, consistency and ease of use. #### Device Description: The TMINI 1.1 like its predicate, the TMINI™ Miniature Robotic System consists of three primary components: a three-dimensional, graphical, Preoperative Planning Workstation (TPLAN Planning Station), an Optical Tracking Navigation Console (TNav) and a robotically controlled hand-held tool (TMINI Robot) that assists the surgeon in preparing the bone for implantation of TKA components. The TPLAN Planning Station uses preoperative CT scans of the operative leg to create 3D surface models for case templating and intraoperative registration purposes. The Planning Workstation contains a library of 510(k) cleared knee replacement implant(s) available for use with the system. The surgeon can select an implant model from this library. The planner/surgeon can manipulate the 3D representation of the implant in relation to the bone {4}------------------------------------------------ Image /page/4/Picture/0 description: The image shows the logo for Think Surgical. The logo features the word "THINK" in bold, sans-serif font, with the "I" replaced by a blue, three-dimensional teardrop shape. Below the word "THINK" is the word "SURGICAL" in a smaller, sans-serif font. The trademark symbol is located in the upper right corner of the teardrop shape, and the registered trademark symbol is located in the upper right corner of the word "THINK". model to optimally place the implant. The surgeon reviews and approves the case plan once the surgeon is satisfied with the implant selection, location and orientation. The data from the approved plan is written to a file that is used to guide the robotically controlled hand-held tool. The hand-held robotic tool is optically tracked relative to optical markers placed in both the femur and tibia and articulates in two degrees-of-freedom, allowing the user to place bone pins in a planar manner in both bones. Mechanical quides are clamped to the bone pins, resulting in subsequent placement of cut slots and drill guide holes such that the distal femoral and proximal tibial cuts can be made in the pre-planned positions and orientations, and such that the implant manufacturer's multi-planer cutting block can be placed relative to drilled distal femoral pilot holes. If the surgeon needs to change the plan during surgery, it can be changed intraoperatively. #### Intended Use: The TMINI 1.1 like the predicate, the TMINI™ Miniature Robotic System is intended to assist the surgeon in providing software defined spatial boundaries for orientation and reference information to anatomical structures during orthopedic procedures. #### Indications for Use: The Indications for Use of the TMINI™ Miniature Robotic System (TMINI 1.1) and the predicate are the same (See Table 1). Both describe the use of a system that uses diagnostic imaging of the patient to allow a surgeon to plan and execute orthopedic total knee procedures. The only difference is that the device, that is the subject of this 510(k) submission, implements a series of incremental modifications to the system to enhance system efficiency, consistency and ease of use. None of the changes made to the predicate, nor the aggregate of all changes, have altered the indications for use or testing, nor have they raised new type of safety or effectiveness questions. Tables 1 and 2, below, identify the substantial equivalence of the TMINI™ Miniature Robotic System (TMINI 1.1) to the predicate, TMINI™ Miniature Robotic System cleared via K232802. {5}------------------------------------------------ Image /page/5/Picture/0 description: The image shows the logo for Think Surgical. The logo features a stylized letter 'T' with a blue sphere at the top, resembling a surgical instrument. Below the 'T', the word 'THINK' is written in bold, sans-serif font, with the 'I' replaced by a blue, needle-like shape. Underneath 'THINK', the word 'SURGICAL' is written in smaller, sans-serif font. | | TMINI™ Miniature Robotic | TMINI™ Miniature Robotic | | |----------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------| | Product | System (TMINI 1.1) | System | Conclusion | | 510(k) number | Subject Device | K232802 | SAME | | Manufacturer | THINK Surgical, Inc | THINK Surgical, Inc | SAME | | Product Code | OLO | OLO | SAME | | Regulation | 21 CFR 882.4560 | 21 CFR 882.4560 | SAME | | Intended Use | Intended to assist the surgeon in providing software defined spatial boundaries for orientation and reference information to anatomical structures during orthopedic procedures. | Intended to assist the surgeon in providing software defined spatial boundaries for orientation and reference information to anatomical structures during orthopedic procedures. | SAME | | Indications for Use | The TMINI™ Miniature Robotic System is indicated as a stereotaxic instrumentation system for total knee replacement (TKA) surgery. It is to assist the surgeon by providing software-defined spatial boundaries for orientation and reference information to identifiable anatomical structures for the accurate placement of knee implant components. The robotic device placement is performed relative to anatomical landmarks as recorded using the system intraoperatively and based on a surgical plan-determined preoperatively using CT based surgical planning tools. It includes a handheld robotic device, an optical sensor navigation system and accessories, software system, surgical instruments and accessories. The targeted population has the same characteristics as the population that is suitable for the implant(s) compatible with the TMINI™ Miniature Robotic System. The TMINI™ Miniature Robotic System is to be used with the following knee replacement system(s) in | The TMINI™ Miniature Robotic System is indicated as a stereotaxic instrumentation system for total knee replacement (TKA) surgery. It is to assist the surgeon by providing software-defined spatial boundaries for orientation and reference information to identifiable anatomical structures for the accurate placement of knee implant components. The robotic device placement is performed relative to anatomical landmarks as recorded using the system intraoperatively and based on a surgical plan-determined preoperatively using CT based surgical planning tools. It includes a handheld robotic device, an optical sensor navigation system and accessories, software system, surgical instruments and accessories. The targeted population has the same characteristics as the population that is suitable for the implant(s) compatible with the TMINI™ Miniature Robotic System. The TMINI™ Miniature Robotic System is to be used with the following knee replacement system(s) in | SAME | | Product | TMINI™ Miniature Robotic System (TMINI 1.1) | TMINI™ Miniature Robotic System | Conclusion | | | indications and contraindications: - Enovis™ EMPOWR Knee System® - Ortho Development BKS® and BKS TriMax® Knee System - Total Joint Orthopedics Klassic® Knee System - United U2™ Knee Total Knee System | indications and contraindications: - Enovis™ EMPOWR Knee System® - Ortho Development BKS® and BKS TriMax® Knee System - Total Joint Orthopedics Klassic® Knee System - United U2™ Knee Total Knee System | | | Product | TMINI™ Miniature Robotic System (TMIN 1.1) | TMINI™ Miniature Robotic System | Substantial Equivalence Conclusion | | 510(k) number Manufacturer | Subject Device THINK Surgical Inc. | K232802 THINK Surgical Inc. | | | Materials | | | | | -Materials Used | Uses materials with a long history of use in orthopedic procedures or provided biocompatibility data consistent with ISO 10993 requirements | Uses materials with a long history of use in orthopedic procedures or provided biocompatibility data consistent with ISO 10993 requirements | SAME | | Technological Characteristics | | | | | -Major System Components | Planning and robot control software, robotic positioning device, navigation system, reusable and disposable instrumentation | Planning and robot control software, robotic positioning device, navigation system, reusable and disposable instrumentation | SAME | | -Patient Imaging | CT images used to create a 3D model of the bone for surgical planning | CT images used to create a 3D model of the bone for surgical planning | SAME | | -Preoperative planning workstation | TPLAN three-dimensional preoperative planning workstation | TPLAN three-dimensional preoperative planning workstation | SAME | | -Surgical planning system | Technician guided surgical planning with surgeon review and approval on a desktop planning station | Technician guided surgical planning with surgeon review and approval on a desktop planning station | SAME | | -Bone Marker Arrays for bone registration and tracking | Active markers on femur and tibia mounted onto the bones via an attachment assembly | Active markers on femur and tibia mounted onto the bones via an attachment assembly | SAME | | -Surgical Exposure | Similar to traditional surgical exposure | Similar to traditional surgical exposure | SAME | | -Patient/Robot Registration | Preoperatively determined landmarks are compared to intraoperatively identified landmarks to complete patient bone registration | Preoperatively determined landmarks are compared to intraoperatively identified landmarks to complete patient bone registration | SAME | | -Camera Tracking Technology | Six camera overhead tracking with a wide-angle field of view | Six camera overhead tracking with a wide-angle field of view | SAME | | -Cut guide positioning | Robotic device places bone pins in the correct plane, then cutguide or drill block is attached to the pins and bone | Robotic device places bone pins in the correct plane, then cutguide or drill block is attached to the pins and bone | SAME | | -Intraoperative planning changes | Implant position can be fully adjusted, allowing deviation from the intended implant positioning philosophy and implant size | Implant position can be adjusted along bone axis only, preserving the intended implant positioning philosophy | Substantially Equivalent | | Product | TMINI™ Miniature Robotic System (TMIN 1.1) | TMINI™ Miniature Robotic System | Substantial Equivalence Conclusion | | 510(k) number | Subject Device | K232802…