Prosecution Insights
Last updated: April 19, 2026
Application No. 17/516,757

BLOOD PUMP WITH RESTART LOCKOUT

Non-Final OA §103
Filed
Nov 02, 2021
Examiner
D ABREU, MICHAEL JOSEPH
Art Unit
3796
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
BOSTON SCIENTIFIC CORPORATION
OA Round
5 (Non-Final)
67%
Grant Probability
Favorable
5-6
OA Rounds
4y 5m
To Grant
89%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allow Rate
462 granted / 694 resolved
-3.4% vs TC avg
Strong +23% interview lift
Without
With
+22.6%
Interview Lift
resolved cases with interview
Typical timeline
4y 5m
Avg Prosecution
72 currently pending
Career history
766
Total Applications
across all art units

Statute-Specific Performance

§101
8.3%
-31.7% vs TC avg
§103
40.8%
+0.8% vs TC avg
§102
30.4%
-9.6% vs TC avg
§112
17.0%
-23.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 694 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 . Continued Examination under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 5 January 2026 has been entered. Response to Arguments Applicant’s arguments combined with the claim amendments have been fully considered and are found persuasive with respect to the previous 112 rejection, which is now withdrawn. After further consideration, an updated rejection is presented 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 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. In considering patentability of the claims under 35 U.S.C. 103(a), the examiner presumes that the subject matter of the various claims was commonly owned at the time any inventions covered therein were made absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and invention dates of each claim that was not commonly owned at the time a later invention was made in order for the examiner to consider the applicability of 35 U.S.C. 103(c) and potential 35 U.S.C. 102(e), (f) or (g) prior art under 35 U.S.C. 103(a). 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 of this title, 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. Claims 2-9, 11-21 are rejected under 35 U.S.C. 103 as being unpatentable over Jarvik et al. (USP# 7,264,606; hereinafter “Jarvik”), in view of Bonde et al. (US 2016/0151553; hereinafter “Bonde”), further in view of Mann et al. (USP# 5,230,607; hereinafter “Mann”). Regarding claims 2, 13, and 18, Jarvik discloses a system comprising: an implantable blood pump configured to pump blood within a patient (e.g. Col 2, ll 29-55); and a control circuit (e.g. Fig. 10, #100) configured to: stop operation of the implantable blood pump in response to detecting a stop condition (e.g. Col 12, ll 19-31 – “if a bubble condition is sensed, the pump is immediately caused to shut down…” – where the examiner considers the shut down to be the initiation of a pump lockout mode), prevent resumption of operation of the blood pump in response to the first pump restart input, and receive a second pump restart input while the pump lockout mode of the blood pump is activated, and control the implantable blood to resume the operation in response to receiving the second pump restart input (e.g. Col 12, ll 19-31 – “…motor does not start again automatically, but must be manually restarted by depressing the restart pump button…” – where the examiner is interpreting the restart pump button as the second pump restart input and the automatic restart as the primary pump restart), wherein the second pump cannot automatically execute as it based on conditions, and is not capable of being directly accessed by a patient as it first must be cleared by clinician. Bonde discloses a blood pump (e.g. Abstract) with a control circuit configured to: stop operation of the blood pump in response to detecting a plurality of stop conditions, the conditions including exceeding a maximum commutation frequency, overvoltage, overcurrent, and exceeding a rated temperature, after which the pump may be automatically restarted (where the examiner considers automatic restarts, in both references, to be the first pump restart input) after a predetermined time period or once the temperature returns to a desirable state (e.g. ¶¶ 43 – the resolution of the issue would indicate a “clearance of the stop condition” as claimed). It would have been obvious to one of ordinary skill at the time the invention was filed to provide in the system of Jarvik, wherein less serious conditions as presented in and taught by Bonde, result in automatic stopping/restarting of the pump, in order to ensure proper pump/patient safety. In this modified/combined system, the automatic restart of Bonde corresponds to the claimed first pump restart input and the manual restart of Jarvik corresponds to the second pump restart input, the lockout mode as claimed is considered to be the shut down where Jarvik’s serious condition requires a manual restart and would not allow a timer or temperature stop condition, for example, to trigger the first pump restart or automatic restart as in Bonde. As added evidence that, when making such a combination, the resultant system would yield wherein there is a first input (an automatic restart trigger) which may restart the pump in some conditions and a lockout mode wherein a second restart input (i.e. a manual restart) is required, Mann, discloses the notion of automatically stopping the pump under some conditions, restarting it automatically in a first condition, but initiating a pump lockout mode, preventing resumption of operation and allowing resumption in response to a manual restart (e.g. Abstract). It would have been obvious to apply this same principle to a blood pump since, as shown in Jarvik and Bonde, blood pumps are also known to have conditions that warrant automatically stopping the pump, conditions that warrant restarting the pump automatically, and more serious conditions in which requiring a pump lockout mode where a manual restart would be desirable. Regarding claims 3, 14-15, and 19, Bonde as referenced above discloses the control circuit is configured to control the blood pump to cease operation in response to detecting at least one of an operational error at the blood pump (e.g. ¶¶ 43). Regarding claim 4, Bonde as referenced above discloses the control circuit is configured to control the blood pump to cease operation in response to detecting a suction condition (e.g. ¶¶ 38, 59, 71, etc.). Regarding claims 5, 16, and 20, Bonde as referenced above discloses the control circuit is configured to initiate the pump lockout mode in response to determining an amount of time since the operation of the blood pump was ceased is greater than or equal to a predetermined amount of time (e.g. ¶¶ 43 – “designated or programmed time period (e.g. 0-2 seconds), the motor may be restarted”). Regarding claims 6 and 17, Bonde as referenced above discloses an interface, wherein the control circuit is configured to receive data indicative of at least one of the first pump restart input or the second pump restart input via the interface (e.g. ¶¶ 43). Regarding claim 7, Bonde as referenced above discloses a user interface, wherein the first pump restart input is an automatic input and the second pump restart input is a manual input received by the control circuit from a user via the user interface (e.g. ¶¶ 11-15, 42, 51, etc.). Regarding claims 8, Mann as referenced above discloses the second pump restart input is inaccessible to the patient (e.g. Fig. 11A, #130). Regarding claims 9 and 21, Bonde as referenced above discloses the control circuit is configured to control the blood pump to resume operation in response to receiving the first pump restart input or the second pump restart input by at least determining at least one of a clearance of high pressure condition, a clearance of suction condition, a clearance of low flow condition, or a clearance of overheating condition (e.g. ¶¶ 43). Regarding claim 11, Mann as referenced above discloses the first and second pump restart inputs differ in that the second pump restart input includes an instruction to clear the pump lockout mode (e.g. Abstract). Regarding claim 12, Bonde as referenced above discloses the control circuit is configured to cause an alert to be provided to the patient or a clinician in response to initiation of the pump lockout mode (e.g. ¶¶ 52). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Michael D’Abreu whose telephone number is (571) 270-3816. The examiner can normally be reached on 7AM-4PM. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, David Hamaoui can be reached at (571) 270-5625. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /MICHAEL J D'ABREU/Primary Examiner, Art Unit 3796
Read full office action

Prosecution Timeline

Nov 02, 2021
Application Filed
Feb 14, 2022
Response after Non-Final Action
Oct 02, 2023
Non-Final Rejection — §103
Nov 02, 2023
Applicant Interview (Telephonic)
Dec 04, 2023
Examiner Interview Summary
Dec 11, 2023
Response Filed
Mar 27, 2024
Non-Final Rejection — §103
Jun 13, 2024
Applicant Interview (Telephonic)
Jun 13, 2024
Examiner Interview Summary
Jun 24, 2024
Response Filed
Jan 11, 2025
Non-Final Rejection — §103
Apr 16, 2025
Response Filed
Aug 30, 2025
Final Rejection — §103
Nov 03, 2025
Response after Non-Final Action
Jan 05, 2026
Request for Continued Examination
Feb 15, 2026
Response after Non-Final Action
Feb 20, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12575755
DETERMINING HEALTH CONDITION STATUSES USING SUBCUTANEOUS IMPEDANCE MEASUREMENTS
2y 5m to grant Granted Mar 17, 2026
Patent 12546320
BLOOD PUMP WITH MICROMOTOR
2y 5m to grant Granted Feb 10, 2026
Patent 12527948
FLUID HANDLING SYSTEM
2y 5m to grant Granted Jan 20, 2026
Patent 12521546
BLOOD PUMP
2y 5m to grant Granted Jan 13, 2026
Patent 12507940
LAYERED MULTI-ACTIVATION LOCAL ACTIVATION TIMES (LAT) MAPPING
2y 5m to grant Granted Dec 30, 2025
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

5-6
Expected OA Rounds
67%
Grant Probability
89%
With Interview (+22.6%)
4y 5m
Median Time to Grant
High
PTA Risk
Based on 694 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month