Prosecution Insights
Last updated: August 16, 2026
Application No. 18/511,542

DRIVE CIRCUIT FOR MEASURING BLOOD PRESSURE, AND BLOOD PRESSURE MEASUREMENT DEVICE

Final Rejection §103
Filed
Nov 16, 2023
Priority
Jun 29, 2021 — JP 2021-107230 +1 more
Examiner
SANDERS, JOSHUA T
Art Unit
2119
Tech Center
2100 — Computer Architecture & Software
Assignee
Omron Corporation
OA Round
2 (Final)
73%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
221 granted / 301 resolved
+18.4% vs TC avg
Strong +36% interview lift
Without
With
+36.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
21 currently pending
Career history
321
Total Applications
across all art units

Statute-Specific Performance

§101
12.7%
-27.3% vs TC avg
§103
46.9%
+6.9% vs TC avg
§102
17.5%
-22.5% vs TC avg
§112
19.7%
-20.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 301 resolved cases

Office Action

§103
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 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. Claims 1-14 are pending. Claims 1-3, 6-7, 10, 12, and 14 are rejected, grounds follow. Claims 4-5,8-9,11 and 13 are objected to for reciting allowable subject matter in improper dependent form. THIS OFFICE ACTION IS FINAL, see additional information at the conclusion of this action. Priority Examiner acknowledges that instant application is a Continuation of Application PCT/JP2022/023545 and has been accorded the benefit of the original priority date. Acknowledgment is made of applicant’s claim for foreign priority under 35 U.S.C. 119 (a)-(d). Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Response to Arguments Applicant’s arguments, see Remarks pages 6-7, filed 06 July 2026, with respect to the 35 USC 112(b) rejections of claims 1-14 have been fully considered and are persuasive. Examiner agrees that the amendments to the claims recite limitations which provide enough certainty to one of ordinary skill in the art when read in the context of the invention to be definite. Accordingly the 35 USC 112(b) rejection of Claims 1-14 has been withdrawn. Applicant's arguments, see Remarks Pages 8 et seq., with respect to the 35 USC 103 rejections of claims 1-3, 6-7, 10, 12, and 14 (Claim 1 representative) have been fully considered but they are not persuasive. Applicant argues that the disclosures of Iwata and Kamisaka either separately or together, fail to teach or fairly suggest the limitations of the amended claim. In response to applicant's argument that the references fail to show certain features of the invention, it is noted that the features upon which applicant relies (i.e., that the inclination is increasing and the waveform does not have a common inclination of 0°) are not recited in the independent claim(s). Although the claims are interpreted in light of the specification, limitations from the specification are not read into the claims. See In re Van Geuns, 988 F.2d 1181, 26 USPQ2d 1057 (Fed. Cir. 1993). In this case the features on which applicant relies are recited in, e.g., several of the dependent claims which have not been rejected in view of the prior art. (Claim 4 representative). Accordingly, the 35 USC 103 rejections of claims 1-3, 6-7, 10, 12, and 14 are maintained. See below for detailed rejection. An interview is likely to be beneficial in advancing prosecution of this application, and Examiner would grant an interview to discuss amendments for placing the application in condition for allowance should one be requested after-final. Claim Rejections - 35 USC § 103 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. Claim(s) 1 and 14 is/are rejected under 35 U.S.C. 103 as being unpatentable over Iwata et al., US Pg-Pub 2019/0298194 in view of Kamisaka et al., Japanese Patent Application JP 2014-033865 (citations to machine translation courtesy eSpacenet, furnished with this office action). Regarding Claim 1, Iwata teaches: A drive circuit (see fig. 10) for measuring blood pressure ([0003] “a conventionally known sphygmomanometer of this type has a cuff wound around a wrist that is a measurement site, and a main body integrally attached to the cuff. This sphygmomanometer includes in a strap-shaped belt a bag-shaped blood-pressure measurement cuff compressing an artery”) that generates a first drive signal for driving a valve ([0086] “the CPU 100 provides a control of driving the pump 30 and the on-off valve 33”) for opening and closing a flow path ([0091] “The on-off valve (normally open solenoid valve in this example) 33 is interposed in the second flow path (actually, between the first flow-path forming member 390 and the second flow-path forming member 380).”) connected to a blood pressure measurement cuff (fig. 10, cuff 20) and a second drive signal for driving a pump ([0086] “the CPU 100 provides a control of driving the pump 30 and the on-off valve 33”) for supplying a fluid to the cuff, ([0090] “The pump 30 can supply air as a pressurizing fluid to the pressing cuff 23 through the first flow-path forming member 390 and the flexible tube 39.” ) Wherein the first drive signal and the second drive signal are generated from a common power supply voltage ([0053] “The battery 53 supplies electric power to the elements mounted on the main body 10, i.e., the CPU 100, the memory 51, the acceleration sensor 54, the communication part 59, the first pressure sensor 31, the second pressure sensor 32, the pump 30, the on-off valve 33, and the pump drive circuit 35”) supplied from a power source circuit, ([0082] “battery 53”) Iwata differs from the claimed invention in that: Iwata does not appear to clearly articulate and a waveform of the first drive signal and an envelope of a peak voltage of the second drive signal have a common shape in which an inclination of an envelope of a peak voltage of the second drive signal conforms to an inclination of a waveform of the first drive signal, changing at a same timing. However, Kamisaka teaches a blood pressure measuring system (see [0001] “blood pressure information measuring device that enables the measurement of blood pressure information by compressing a living body using a fluid bag”) in which the waveforms of the drive signals for the pump ([0092] “pump”) and the valve ([0092] “switching valve”) have a shared envelope, common waveform, shared inclination, and change at the same timings (see fig. 12 showing the waveforms for the pump and the valve (which are the same) compared to the pressure in the cuff, and [0093]-[0101], e.g. [0095] “The second predetermined time T2 mentioned above is the time in the preliminary operation 2 when the operation of the switching valve 33 is controlled to switch the air bag 42 to the open state, and the third predetermined time T3 mentioned above is the time in the preliminary operation 2 when the operation of the pump 32 is controlled to stop the injection of air into the air bag 42.” And [0102] “In this third embodiment, we have provided an example where the second predetermined time T2, which is the time when the operation of the switching valve 33 is controlled to switch the air bag 42 to the open state, and the third predetermined time T3, which is the time when the operation of the pump 32 is controlled to stop injecting air into the air bag 42, are set to be the same time.”) (nb. “an inclination” and “conforms to an inclination” have been interpreted to include inclinations of 0 degrees, i.e. horizontal, consistent with the broadest reasonable interpretation of the plain meaning of the word “inclination”.) Kamisaka is analogous art because it is from the same field of endeavor as the claimed invention of blood pressure measurement systems which operate by inflating a fluid bag around a living person’s extremity. One of ordinary skill in the art before the effective filing date of the application could have modified the teachings of Iwata to excite the valve and pump with a same timing using a waveform having the same shape, as suggested by Kamisaka. One of ordinary skill in the art before the effective filing date of the application could have been motivated to make this modification in order to improve the accuracy of the blood pressure measurement, as suggested by Kamisaka ([0101] “Therefore, as in this third embodiment, by stopping the operation of the pump 32 during the period from time T3, which is a third predetermined time point prior to time Tpe, which is the end of the pre-operation, to time Tpe, and thereby stopping the injection of air into the air bag 42, it becomes possible to more reliably return the cuff pressure to atmospheric pressure P0. Thus, by adopting this configuration, the accuracy of blood pressure measurement can be further improved.”) Regarding Claim 14, Iwata in view of Kamisaka teaches all of the limitations of parent claim 1, Iwata further teaches: A blood pressure measurement device, (see fig. 2) comprising: a cuff to which a fluid is supplied; (cuff 20, see figs. 2, 10) a pump that supplies the fluid to the cuff; (pump 30, see fig. 10) a valve that opens and closes a flow path connected to the cuff; (valve 33, see fig. 10) a power source circuit; (see fig. 10, battery 53) the drive circuit for measuring blood pressure according to claim 1; (see rejection claim 1, supra.) and a processor (cpu 100) that outputs a control signal of a voltage to the drive circuit for measuring blood pressure. ([0086] “the CPU 100 provides a control of driving the pump 30 and the on-off valve 33”) Claim(s) 2-3 and 6-7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Iwata in view of Kamisaka, further in view of Yamashita et al., US Pg-Pub 2014/0276146. Regarding Claim 2, Iwata in view of Kamisaka teaches all of the limitations of parent claim 1, Iwata further teaches: a control circuit that outputs the second drive signal; ([0086] “the CPU 100 provides a control of driving the pump 30 and the on-off valve 33”) Iwata in view of Kamisaka differs from the claimed invention in that: neither reference clearly articulates: a transformer circuit that transforms the power supply voltage into a voltage value corresponding to the first drive signal and the second drive signal and outputs the transformed voltage to the control circuit and the valve. However, Yamashita teaches a blood pressure measurement system (see fig. 1) including a transformer circuit (see fig. 3) which transforms the voltage to output the transformed voltage to the controlled actuator (e.g. the pump, see [0045] “The booster circuit 66 adjusts the level of an applied voltage supplied to the H-bridge circuit 64 in accordance with an instruction from the CPU 100. The amount of current flowing in the piezoelectric pump 51 can be adjusted by adjusting the level of the applied voltage.”) Yamashita is analogous art because it is from the same field of endeavor as the claimed invention of blood pressure measurement systems which operate by inflating a fluid bag around a living person’s extremity. One of ordinary skill in the art before the effective filing date of the application could have modified the teachings of Iwata to include a transformer circuit comprising a booster circuit for adjusting the level of the applied voltage, as suggested by Yamashita. One of ordinary skill in the art could have been motivated to make this modification in order to condition the power signal supplied to the excited component using known circuit elements, as suggested by Yamashita ([0045] “Note that in the case where the amount of current flowing in the piezoelectric pump 51 is constant, it is not necessary for the CPU 100 to instruct the voltage to be adjusted, and the booster circuit 66 may simply boost the voltage to a desired fixed voltage and supply that voltage to the H-bridge circuit 64. Of course, if it is not necessary to boost the voltage, a configuration in which the booster circuit 66 is not provided may be employed. Note that the configurations of the H-bridge circuit 64 and the booster circuit 66 are already known and thus detailed descriptions thereof will not be given.”) Regarding Claim 3, Iwata in view of Kamisaka further in view of Yamashita teaches all of the limitations of parent claim 2, Yamashita further teaches: wherein the transformer circuit is a booster circuit that boosts the power supply voltage. (see [0045] “The booster circuit 66 adjusts the level of an applied voltage supplied to the H-bridge circuit 64 in accordance with an instruction from the CPU 100. The amount of current flowing in the piezoelectric pump 51 can be adjusted by adjusting the level of the applied voltage.”) Regarding Claims 6 and 7, Iwata in view of Kamisaka, further in view of Yamashita teaches all of the limitations of parent claims 2 and 3 respectively; Yamashita further teaches: (Claim 6 representative) the transformer circuit transforms the power supply voltage into the voltage value at which the valve is driven and subsequently transforms the voltage value to a voltage value at which driving of the valve is maintained and the pump is driven. ([0045] The booster circuit 66 adjusts the level of an applied voltage supplied to the H-bridge circuit 64 in accordance with an instruction from the CPU 100. The amount of current flowing in the piezoelectric pump 51 can be adjusted by adjusting the level of the applied voltage. Note that in the case where the amount of current flowing in the piezoelectric pump 51 is constant, it is not necessary for the CPU 100 to instruct the voltage to be adjusted, and the booster circuit 66 may simply boost the voltage to a desired fixed voltage and supply that voltage to the H-bridge circuit 64. Of course, if it is not necessary to boost the voltage, a configuration in which the booster circuit 66 is not provided may be employed. Note that the configurations of the H-bridge circuit 64 and the booster circuit 66 are already known and thus detailed descriptions thereof will not be given. ) The limitation: wherein a voltage value at which the valve is driven is higher than a voltage at a start of driving the pump; is an obvious matter of design choice within the capabilities of one of ordinary skill to select a suitable voltage level to operate the excited components based on the particular voltage requirements of the components selected, and is obvious unless a new and unexpected result is produced. (see MPEP 2144.04 citing in re Stevens 212 F.2d 197, 101 USPQ 284 (CCPA 1954); in re Japiske 181 F.2d 1019, 86 USQP 70 (CCPA 1950).) As examiner is unable to find any indication in the record at this time that a new and unexpected result was produced, this limitation is obvious over the teachings of Yamashita regarding the use of a transformer circuit to adjust the output voltage to match the excited component. Claim(s) 10 and 12 is/are rejected under 35 U.S.C. 103 as being unpatentable over Iwata in view of Kamisaka and Yamashita, further in view of Lane et al., US Pg-Pub 2009/0156946. Regarding Claim 10, Iwata in view of Kamisaka in view of Yamashita teaches all of the limitations of parent claim 2, Iwata in view of Kamisaka in view of Yamashita differs from the claimed invention in that: Iwata, Kamisaka, and Yamashita do not appear to clearly articulate: the control circuit outputs a PWM signal to the pump and the valve as the first drive signal and the second drive signal, and the PWM signal has an effective voltage equal to or more than a voltage required for the valve and the pump to operate. However, Lane teaches a blood pressure measurement cuff (see e.g. [0053] “blood pressure monitor 100”) where the excited components are driven by a signal that is pulse width modulated (PWM) ([0053] “The drive power for valves and pumps can be simple DC switching, such as using ON-OFF solid state switches, or can by pulse width modulation (PWM).”) Lane is analogous art because it is from the same field of endeavor as the claimed invention of blood pressure measurement systems which operate by inflating a fluid bag around a living person’s extremity. One of ordinary skill in the art before the effective filing date of the application could have modified the teachings of Iwata to include using a PWM driving signal as suggested by Lane. One of ordinary skill in the art before the effective filing date of the application could have been motivated to make this modification because PWM drive power is an expressly considered alternative for direct current drive power for pumps and valves in Lane, and because Lane suggests that such a drive signal may be especially suitable for pump excitation ([0053] “PWM drive can be particularly useful for driving a pump motor and can include such features as a pump motor start profile in time.”) Regarding Claim 12, Claim 12 recites the same features as Claim 6 (supra), except dependent upon claim 10. For the reasons articulated with respect to Claim 6, Claim 12 is obvious over the teachings of Iwata in view of Kamisaka, in view of Yamashita, further in view of Lane. Allowable Subject Matter The following is a statement of reasons for the indication of allowable subject matter: While Ishihara, Kamisaka, Yamashita, and Lane teach many of the limitations of the claimed invention as outlined above; none of the references, alone or in reasonable combination teach or fairly suggest all of the limitations of the claimed invention, particularly: (Claim 4) wherein the transformer circuit gradually increases the voltage value output to the valve and the control circuit. (Excerpted) …in combination with the remaining limitations and features of the claimed invention. Claims 5 and 11 reciting substantively the same subject matter except with different antecedent claims and are likewise persuasive over the prior art for the same reason(s) as articulated with respect to claim 4. Dependent claims 8, 9, and 13, being dependent upon the above noted claim(s), are likewise persuasive for at least the above noted reason(s). Claims 4, 5, 8, 9, 11 and 13 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 An interview may be beneficial in advancing prosecution of this application. An after-final interview will be granted in this application should one be requested. THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOSHUA T SANDERS whose telephone number is (571)272-5591. The examiner can normally be reached Generally Monday through Friday. 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, Mohammad Ali can be reached at 571-272-4105. 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. /J.T.S./Examiner, Art Unit 2119 /MOHAMMAD ALI/Supervisory Patent Examiner, Art Unit 2119
Read full office action

Prosecution Timeline

Nov 16, 2023
Application Filed
Apr 07, 2026
Non-Final Rejection mailed — §103
Jul 06, 2026
Response Filed
Jul 31, 2026
Final Rejection mailed — §103 (current)

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Prosecution Projections

3-4
Expected OA Rounds
73%
Grant Probability
99%
With Interview (+36.4%)
2y 9m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 301 resolved cases by this examiner. Grant probability derived from career allowance rate.

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