Prosecution Insights
Last updated: August 16, 2026
Application No. 18/793,046

BALLOON ANCHORING GUIDE CATHETER EXTENSION

Non-Final OA §103
Filed
Aug 02, 2024
Priority
Jun 24, 2019 — provisional 62/865,498 +2 more
Examiner
SHAH, NILAY J
Art Unit
Tech Center
Assignee
Orbusneich Medical Pte. Ltd.
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
1y 1m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
457 granted / 596 resolved
+16.7% vs TC avg
Strong +46% interview lift
Without
With
+46.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
44 currently pending
Career history
664
Total Applications
across all art units

Statute-Specific Performance

§101
1.4%
-38.6% vs TC avg
§103
50.0%
+10.0% vs TC avg
§102
15.1%
-24.9% vs TC avg
§112
31.1%
-8.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 596 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 . Claim Objections Claim 4 is objected to because of the following informalities: Claim 4 recites the limitation “the exterior surface” in lines 2-3. There is insufficient antecedent basis for this limitation in the claim. Appropriate correction is required. 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. Claims 1-3, 5 and 6 are rejected under 35 U.S.C. 103 as being unpatentable over Ressemann et al. (US 2003/0050600 A1) in view of Mische (US 5,360,403). Regarding claims 1 and 2, Ressemann discloses a guide catheter extension (entire device shown in figure 2C except for element 260), comprising: a push member 210, 220 having a proximal end (end of element 210 coupled to element 205) and a distal end (end of element 220 coupled to element 232); a tube frame 232 coupled to the distal end of the push member 210, 220, the tube frame 232 defining a lumen 240 having a diameter sufficient to receive an interventional vascular device therethrough and comprising a flange (see “F” in figure 2C below); and an inflatable element 233, 234, 236 coupled to the tube frame but is silent regarding wherein the inflatable element is expandable into the lumen wherein the inflatable element is expandable to occupy between 10% and 90% of a cross-sectional area of the lumen. However, Mische teaches a design of a balloon catheter (figure 10) with lumen occluder wherein the inflatable element 110 is expandable into the lumen 106 wherein the inflatable element 110 is expandable to occupy between 10% and 90% (since element 110 is completely occupying the lumen 106 upon full inflation, element 110 is capable to occupy a cross-sectional area of the lumen between 10% and 90% if element 110 is expanded to certain level) of a cross-sectional area of the lumen 106 for the purpose of occluding the open lumen when inflating the balloon in a single operation (column 2, lines 15-19) as required by the medical procedure involving delivery of the fluid to the target site (column 3, lines 41-52). Therefore, it would have been prima facie obvious to one of ordinary skill in the art, before the effective filing of the claimed invention to modify the inflatable element of Ressemann to incorporate wherein the inflatable element is expandable into the lumen wherein the inflatable element is expandable to occupy between 10% and 90% of a cross-sectional area of the lumen as taught by Mische for the purpose of occluding the open lumen when inflating the balloon in a single operation (column 2, lines 15-19) as required by the medical procedure involving delivery of the fluid to the target site (column 3, lines 41-52). PNG media_image1.png 306 782 media_image1.png Greyscale Regarding claim 3, Ressemann discloses wherein the inflatable element 233, 234 is expandable outward beyond an exterior surface (exterior surface of element 232) of the tube frame 232 into a space (space between element 232 and element 260) between the guide catheter extension and a surrounding guide catheter 260. Regarding claim 5, Ressemann discloses wherein the push member 210, 220 includes an inflation lumen 242 (paragraph 0131, lines 4-10) in fluid communication with an interior of the inflatable element 233, 234, 236. Regarding claim 6, Ressemann is silent regarding wherein at least a portion of the inflation lumen defines an arcuate cross-section having a radius of curvature equal to a radius of the lumen of the tube frame. However, Mische teaches wherein at least a portion of the inflation lumen defines an arcuate cross-section (see “AC” in figure 10 below) having a radius of curvature (radius of curvature of “AC” in figure 10 below) equal to a radius (radius of element 106) of the lumen of the tube frame for the purpose of occluding the open lumen when inflating the balloon in a single operation (column 2, lines 15-19) as required by the medical procedure involving delivery of the fluid to the target site (column 3, lines 41-52). Therefore, it would have been prima facie obvious to one of ordinary skill in the art, before the effective filing of the claimed invention to modify the inflatable element of Ressemann to incorporate wherein at least a portion of the inflation lumen defines an arcuate cross-section having a radius of curvature equal to a radius of the lumen of the tube frame as taught by Mische for the purpose of occluding the open lumen when inflating the balloon in a single operation (column 2, lines 15-19) as required by the medical procedure involving delivery of the fluid to the target site (column 3, lines 41-52). Claim 4 is rejected under 35 U.S.C. 103 as being unpatentable over Ressemann et al. (US 2003/0050600 A1) in view of Mische (US 5,360,403) and further in view of Taricco (US 3,833,003). Regarding claim 4, Ressemann/Mische (hereinafter referred as “modified Ressemann”) discloses the claimed invention substantially as claimed, as set forth above in claim 1. Modified Ressemann is silent regarding wherein the tube frame defines a window therein through which the inflatable element is expandable outward beyond the exterior surface of the tube frame. However, Taricco teaches a design of a catheter with a balloon (figure 1) wherein the tube frame 60 defines a window 15 (a gap formed between elements 18 and 17 that allows element 16 to expand outward) therein through which the inflatable element 16 is expandable outward beyond the exterior surface of the tube frame 60 for the purpose of using a well-known configuration to attach the balloon to the tube frame (column 3, lines 43-60). Therefore, it would have been prima facie obvious to one of ordinary skill in the art before the effective filing of the claimed invention to modify the tube frame of modified Ressemann to incorporate wherein the tube frame defines a window therein through which the inflatable element is expandable outward beyond the exterior surface of the tube frame as taught by Taricco for the purpose of using a well-known configuration to attach the balloon to the tube frame (column 3, lines 43-60). Claim 7 is rejected under 35 U.S.C. 103 as being unpatentable over Ressemann et al. (US 2003/0050600 A1) in view of Mische (US 5,360,403) and further in view of Patel (US 4,447,228). Regarding claim 7, modified Ressemann discloses the claimed invention substantially as claimed, as set forth above in claim 1. Modified Ressemann is silent regarding further comprising a tongue element extending from a proximal segment of the tube frame, wherein the tongue element is directly coupled to the distal end. However, Patel teaches a design of a catheter (figure 2) comprising a tongue element 48 extending from a proximal segment (segment of element 30 comprising element 48) of the tube frame 30, wherein the tongue element 30 is directly coupled to the distal end (end of element 12 comprising element 40) for the purpose of connecting two structures together using a well-known bonding technique (column 3, lines 1-11). Therefore, it would have been prima facie obvious to one of ordinary skill in the art to modify the connection between the tube frame and the push member of modified Ressemann to incorporate further comprising a tongue element extending from a proximal segment of the tube frame, wherein the tongue element is directly coupled to the distal end as taught by Patel for the purpose of connecting two structures together to achieve relatively continuous inner surface when using a bonding technique (column 3, lines 1-11). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Ressemann et al. (US 5,466,222): discloses a guide catheter extension comprising a push member and a tube frame. Any inquiry concerning this communication or earlier communications from the examiner should be directed to NILAY J SHAH whose telephone number is (571)272-9689. The examiner can normally be reached Monday-Thursday 8:00 AM-4:30 PM 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, CHELSEA STINSON can be reached at 571-270-1744. 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. /NILAY J SHAH/Primary Examiner, Art Unit 3783
Read full office action

Prosecution Timeline

Aug 02, 2024
Application Filed
Jul 30, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12700517
Elution Protocols and Dosages for Radiopharmaceutical Elution System
2y 10m to grant Granted Aug 04, 2026
Patent 12685822
AUTOINJECTOR WITH A SIGNALING DEVICE
2y 4m to grant Granted Jul 21, 2026
Patent 12678604
INTRAURETHRAL MEDICATION DOSAGE FORM AND DEVICE
4y 3m to grant Granted Jul 14, 2026
Patent 12678600
METHODS OF PREPARING BALLOON EXPANDABLE CATHETERS FOR CARDIAC AND VASCULAR INTERVENTIONS
2y 7m to grant Granted Jul 14, 2026
Patent 12673149
SUCTION DEVICE FOR SUCKING OBSTRUCTION IN RESPIRATORY TRACT AND USE METHOD THEREFOR
3y 2m to grant Granted Jul 07, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
77%
Grant Probability
99%
With Interview (+46.4%)
3y 1m (~1y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 596 resolved cases by this examiner. Grant probability derived from career allowance 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