Prosecution Insights
Last updated: April 19, 2026
Application No. 17/773,193

PROSTHETIC CARDIAC VALVE DELIVERY DEVICES, SYSTEMS, AND METHODS

Non-Final OA §103
Filed
Apr 29, 2022
Examiner
STEWART, ALVIN J
Art Unit
3799
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Shifamed Holdings LLC
OA Round
2 (Non-Final)
83%
Grant Probability
Favorable
2-3
OA Rounds
3y 0m
To Grant
84%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
894 granted / 1082 resolved
+12.6% vs TC avg
Minimal +1% lift
Without
With
+1.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
39 currently pending
Career history
1121
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
34.3%
-5.7% vs TC avg
§102
39.0%
-1.0% vs TC avg
§112
13.9%
-26.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1082 resolved cases

Office Action

§103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Response to Arguments Even though the Applicant’s representative added the allowable subject matter in claim 108 to the independent claim 78. However, after a careful review of the application and the prior art, the Examiner found a reference having an anchor comprising a round surface and a different embodiment having a flat surface. Therefore, the Examiner believes that a USC 103 rejection is appropriate. See rejection below. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 78, 83, 94, 106, 107 and 124 are rejected under 35 U.S.C. 103 as being unpatentable over Righini et al US Patent Pub. 2016/0346080A1 in view of Argento et al US patent Pub. 2024/0341951A1. Righini et al discloses a device comprising: a valve prothesis (10) comprising a frame structure (16) and an anchor (36), wherein the anchor comprises a series of segments (37 and 38) operably coupled to one another and having a free end (e.g. 39 or 40), wherein the anchor has a delivery configuration and a deployed configuration, wherein the anchor is configured to secure the valve prosthesis to the diseased valve, wherein the anchor is configured to have a low compressive stiffness and low expansive stiffness in the delivery configuration (see Figs. 7 and 11B) and a high expansion stiffness after transition to the deployed configuration (see Fig. 11G). However, Righini et al does not disclose a flat annular shape. Argento et al discloses an implant having an anchor made out of a single piece. The anchor as disclosed in Figs. 46 and 47 discloses an anchor made out of a cylindrical round cross-section. Additionally, Figs. 52-54 and 58-61 discloses an anchor having a flat annular shape (see paragraph 246) At the time the invention was made, it would have been an obvious matter of design choice to a person of ordinary skill in the art to modify the anchor circular cross-section shape with the flat annular shape of the Argento et al reference because Applicant has not disclosed that by having a flat annular shape provides an advantage, is used for a particular purpose, or solves a stated problem. One of ordinary skill in the art, furthermore, would have expected Applicant’s invention to perform equally well with the circular shape of the Righini et al reference because it would perform equally as well. Therefore, it would have been an obvious matter of design choice to modify the Righini reference to obtain the invention as specified in claim 78. Regarding claim 83, see Fig. 7 disclosing element (39) as the slanted edge. Regarding claim 94, see Fig. 14A showing the anchor inside the delivery system in the collapsed configuration. Regarding claim 106, see element (39) as one free end and element (40) as the second end. Regarding claim 107, the Examiner interpreted the “band of the component” as part of segment 37, the key as element (39) and the complementary lock as element (40). Regarding claim 124, see Fig. 11; the coupling structure is element 39 and 40. Claims 78, 94, 103, 115, 116, 118, 122 and 124 are rejected under 35 U.S.C. 103 as being unpatentable over Patel et al US Patent Pub. 2018/0177594A1 in view of Argento et al US patent Pub. 2024/0341951A1. Patel et al discloses a device comprising: a valve prothesis (see Fig. 9) comprising a frame structure (40) and an anchor (1), wherein the anchor comprises a series of segments (each section divided by 216, see Fig. 12 and 11) operably coupled to one another and having a free end (222, see Fig. 12), wherein the anchor has a delivery configuration and a deployed configuration, wherein the anchor is configured to secure the valve prosthesis to the diseased valve, wherein the anchor is configured to have a low compressive stiffness and low expansive stiffness in the delivery configuration (see Fig. 6, inside the catheter) and a high expansion stiffness after transition to the deployed configuration (see Fig. 9). However, Patel et al does not disclose a flat annular shape. Argento et al discloses an implant having an anchor made out of a single piece. The anchor as disclosed in Figs. 46 and 47 discloses an anchor made out of a cylindrical round cross-section. Additionally, Figs. 52-54 and 58-61 discloses an anchor having a flat annular shape (see paragraph 246) At the time the invention was made, it would have been an obvious matter of design choice to a person of ordinary skill in the art to modify the anchor circular cross-section shape with the flat annular shape of the Argento et al reference because Applicant has not disclosed that by having a flat annular shape provides an advantage, is used for a particular purpose, or solves a stated problem. One of ordinary skill in the art, furthermore, would have expected Applicant’s invention to perform equally well with the circular shape of the Patel et al reference because it would perform equally as well. Therefore, it would have been an obvious matter of design choice to modify the Patel et al reference to obtain the invention as specified in claim 78. Regarding claim 94, see Fig. 6. Regarding claim 103, see Figs. 6 and 7. Regarding claim 115, see Figs. 3 and 4. Regarding claim 116, see Fig. 12, the slits 216 inherently have an angled edge so element 200 can be able to curl up to the final spiral position. Regarding claim 117, it would have been obvious to one ordinary skill in the art to have the edges of each selected segments at an angled between 5 to 85 degrees in order to allow the anchor take the shape of a spiral configuration. Regarding claim 118, see Fig. 12. Regarding claim 122, see Fig. 11, the Examiner interpreted element 212 as the material. Regarding claim 124, see Fig. 11. Allowable Subject Matter Claims 123 and 125 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALVIN J STEWART whose telephone number is (571)272-4760. The examiner can normally be reached Monday-Friday 8:30AM-6PM EST. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Thomas Barrett can be reached on 571-272-4746. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /ALVIN J STEWART/Primary Examiner, Art Unit 3799 12/11/25
Read full office action

Prosecution Timeline

Apr 29, 2022
Application Filed
Apr 29, 2022
Response after Non-Final Action
Apr 11, 2025
Non-Final Rejection — §103
Sep 16, 2025
Response Filed
Dec 11, 2025
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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EXPANDABLE DEVICES AND ASSOCIATED SYSTEMS AND METHODS
2y 5m to grant Granted Apr 14, 2026
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UNCAGING STENT
2y 5m to grant Granted Apr 14, 2026
Patent 12588997
HEART VALVE SEALING DEVICES AND DELIVERY DEVICES THEREFOR
2y 5m to grant Granted Mar 31, 2026
Patent 12588991
APPARATUS AND METHOD FOR MONITORING VALVE EXPANSION
2y 5m to grant Granted Mar 31, 2026
Patent 12588907
SELF-LOCKING WINCH
2y 5m to grant Granted Mar 31, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
83%
Grant Probability
84%
With Interview (+1.2%)
3y 0m
Median Time to Grant
Moderate
PTA Risk
Based on 1082 resolved cases by this examiner. Grant probability derived from career allow rate.

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