Prosecution Insights
Last updated: July 17, 2026
Application No. 18/630,846

DEVICES, SYSTEMS AND METHODS FOR ENDOVASCULAR TEMPERATURE CONTROL

Non-Final OA §103
Filed
Apr 09, 2024
Priority
Feb 02, 2017 — CIP of 11/185,440 +2 more
Examiner
DEMIE, TIGIST S
Art Unit
3794
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
ZOLL Medical Corporation
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
11m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
339 granted / 451 resolved
+5.2% vs TC avg
Strong +21% interview lift
Without
With
+20.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
25 currently pending
Career history
472
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
76.7%
+36.7% vs TC avg
§102
9.8%
-30.2% vs TC avg
§112
5.4%
-34.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 451 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 . Election/Restrictions Applicant’s election without traverse of Group I directed to claims 87-97 in the reply filed on 05/14/2026 is acknowledged. 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. 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 87-97 and 101-102 are rejected under 35 U.S.C. 103 as being unpatentable over Dea et al. (US 2002/0111616). Regarding claim 87, Dea discloses a method for reducing reperfusion injury in a subject following an ischemic event [0013], the method comprising: inserting a heat exchange catheter of an intravascular temperature management system into a vasculature of the subject (fig.1); circulating a heat exchange fluid through the heat exchange catheter to lower a body temperature of the subject to a cool the temperature within a first period of time ([0080]: “twenty minutes into the occlusion, the external heat exchanger was turned on with the controller was set to remove heat via the heat exchange catheter to lower the cardiac temperature of the pig at the maximum rate”) prior to reperfusion ([0080]-[0081]); maintaining the body temperature of the subject below about 34°C for a second period of time [0081]; performing a reperfusion procedure on the subject when the body temperature of the subject is below about 34°C; and maintaining a state of hypothermia in the subject following the reperfusion procedure [0081]. Dea does not disclose lower a body temperature of the subject to a temperature below about 34°C within a first period. However, Dea teaches the controller 28 is configured to control the temperature of the heat exchange region for purposes of inducing and controlling cardiac hypothermia [0059]. The time during which the hypothermia is administered may vary according to the circumstances. For example, the heart may be cooled for a short period of time and then rewarmed, or may be cooled and maintained in a cooled condition for some period of time. For example, a heart attack victim may have the cardiac muscle cooled for an hour, while the hypothermia may be applied during beating heart surgery for several hours [0025]. Therefore, it would have been obvious to one of ordinary skill in the art at the time the Application was effectively filed to modify the duration and the temperature of treatment including during the first period of the procedure as contemplated by general teaching of Dea for the purpose of achieving the desired treatment. Regarding claim 88, Dea discloses the method according to claim 87, wherein circulating the heat exchange fluid includes lowering the body temperature of the subject to a temperature between about 32°C and about 34°C [0014]. Regarding claim 89-90, Dea does not specifically teach wherein circulating the heat exchange fluid includes lowering the body temperature of the subject from normothermia to the body temperature below about 34°C within about 20 minutes and wherein maintaining the body temperature of the subject below about 34°C includes maintaining the body temperature of the subject below about 34°C prior to the reperfusion procedure. However, Dea generally teaches the controller 28 is configured to control the temperature of the heat exchange region for purposes of inducing and controlling cardiac hypothermia [0059]. The time during which the hypothermia is administered may vary according to the circumstances. For example, the heart may be cooled for a short period of time and then rewarmed, or may be cooled and maintained in a cooled condition for some period of time. For example, a heart attack victim may have the cardiac muscle cooled for an hour, while the hypothermia may be applied during beating heart surgery for several hours [0025]. Therefore, it would have been obvious to one of ordinary skill in the art at the time the Application was effectively filed to modify the duration of the procedure and the desired temperature as contemplated by the general teaching of Dea for the purpose of achieving the desired treatment. Regarding claim 91, Dea discloses the method according to claim 87, wherein performing the reperfusion procedure includes performing the reperfusion procedure on a subject suffering from an evolving myocardial infarction of myocardial ischemia [0049]. Regarding claim 92, Dea discloses the method according to claim 87, wherein the ischemic event includes myocardial infarction, acute coronary syndrome, stroke, infarction or ischemia of metabolic tissue or organ including heart, lung, kidney, liver, and brain [0051]. Regarding claim 93, Dea discloses the method according to claim 87, wherein performing the reperfusion procedure on the subject includes performing percutaneous coronary intervention on the subject [0014]. Regarding claim 94, Dea discloses the method according to claim 87, wherein maintaining the state of hypothermia in the subject includes maintaining the body temperature of the subject at a temperature of about 32°C [0024]. Regarding claim 95, Dea discloses the method according to claim 94, wherein maintaining the state of hypothermia includes maintaining the body temperature of the subject at about 32°C [0024] for about three hours [0025]. Regarding claim 96, Dea discloses the method according to claim 87, further comprising warming the subject after maintaining the state of hypothermia in the subject for a third period (After the period of cooling) of time [0082]. Regarding claim 97, Dea discloses the method according to claim 96, wherein warming the subject includes circulating the heat exchange fluid at a temperature at or above about 42°C [0082]. Regarding claim 101, Dea discloses the method according to claim 87 further comprising estimating the body temperature of the subject [0059]. Regarding claim 102, Dea discloses the method according to claim 101, wherein estimating the body temperature of the subject includes estimating a temperature of tissue near a site of ischemia [0059]. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TIGIST S DEMIE whose telephone number is (571)270-5345. The examiner can normally be reached Monday-Friday 8am-5Pm. 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, Joseph Stoklosa can be reached at 571-2721213. 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. /TIGIST S DEMIE/Primary Examiner, Art Unit 3794
Read full office action

Prosecution Timeline

Apr 09, 2024
Application Filed
Nov 27, 2024
Response after Non-Final Action
Jun 03, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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HUMAN EXTREMITY WARMING APPARATUS
3y 7m to grant Granted Jul 14, 2026
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DETERMINING A VALUE INDICATIVE OF A THERMOREGULATORY ACTIVITY OF A PATIENT USING A TEMPERATURE MANAGEMENT SYSTEM
3y 11m to grant Granted Jun 23, 2026
Patent 12661256
HEAT TRANSFER SYSTEM FOR A THERAPY DEVICE
3y 6m to grant Granted Jun 23, 2026
Patent 12661257
THERMAL PERFORMANCE OPTIMIZATION IN A THERMAL THERAPY DEVICE
3y 4m to grant Granted Jun 23, 2026
Patent 12653601
PERICARDIOTOMY DEVICES AND RELATED METHODS
4y 4m to grant Granted Jun 16, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
75%
Grant Probability
96%
With Interview (+20.6%)
3y 2m (~11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 451 resolved cases by this examiner. Grant probability derived from career allowance rate.

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