Prosecution Insights
Last updated: July 17, 2026
Application No. 18/092,791

SMART OBTURATOR ASSEMBLY

Non-Final OA §103
Filed
Jan 03, 2023
Priority
Sep 06, 2017 — continuation of 10/525,232 +1 more
Examiner
TAYLOR, MARISSA ENVENESIA
Art Unit
3783
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Becton, Dickinson and Company
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
1m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
17 granted / 22 resolved
+7.3% vs TC avg
Strong +36% interview lift
Without
With
+35.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
20 currently pending
Career history
49
Total Applications
across all art units

Statute-Specific Performance

§103
75.3%
+35.3% vs TC avg
§102
9.3%
-30.7% vs TC avg
§112
14.4%
-25.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 22 resolved cases

Office Action

§103
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 an invention in the reply filed on 03/16/2026 is acknowledged. Claims 15-21 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected Invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 03/16/2026. 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 1-6 and 8-14 are rejected under pre-AIA 35 U.S.C. 103(a) as being unpatentable over Walder et al. (US Patent No. 5064415 A, herein, Walder) in view of Bickoff et al. (US Pub No. 20090275815 A1, herein, Bickoff). Regarding claim 1, Walder discloses an obturator assembly comprising: a hub (12 – Fig.1) forming a central passage (44 – Fig.1); and an obturator (32 – Fig.1) movably positionable within a lumen (46 – Fig.1) of a device operatively coupled to the hub (Fig.1), the obturator movable within the lumen (“manipulating and feeding the obturator rod to and through the lumen in catheter in order to occlude completely lumen” – Col. 4, lines 59-63) between a first position (Fig.1) and a second position (Fig.2), the obturator comprising: a distal end having a tip portion and an opposing proximal end (See Annotated Fig.1 below); and wherein, with the obturator in the first position, the distal end limits fluid flow through the lumen (Fig.2, “obturator rod in its in-place position occluding the lumen of the catheter” – Col.4, lines 2-3) and, with the obturator in the second position, the distal end provides fluid flow through the lumen (Fig.1, “withdrawal of the obturator rod, as desired, for feeding fluid through the catheter” – Col.3, lines 66-67). PNG media_image1.png 616 1396 media_image1.png Greyscale However, Walder does not expressly disclose wherein the obturator comprises a sensor at the distal end of the obturator. Bickoff teaches a sensor (60 – Fig.4) at the distal end of an obturator (40a – Fig.3). It would be obvious to one in the ordinary skill in the art, before the effective filing date of the applicant’s claimed invention to modify the obturator of Walder to comprise a sensor at the distal end of the obturator as taught by Bickoff to provide the obturator of Walder with an analyte sensor for optimal treatment of the patient. Regarding claim 2, Walder, as modified, discloses an obturator assembly as set forth above, but Walder does not expressly disclose the obturator further comprising a locking collar operatively coupled to the hub, the locking collar configurable in a locked configuration to prevent movement of the obturator within the lumen and in an unlocked configuration to allow movement of the obturator within the lumen. However, Walder teaches another embodiment of an obturator assembly comprising a locking collar (108 – Fig.8), the locking collar configurable in a locked configuration to prevent movement of the obturator within the lumen and in an unlocked configuration to allow movement of the obturator within the lumen (“allow moving the distal end of rod forward to occlude, or rearward to allow fluid passage” – Col.6, lines 47-48). It would be obvious to one in the ordinary skill in the art, before the effective filing date of the applicant’s claimed invention to modify the obturator of Walder to comprise a locking collar as taught by the second embodiment of Walder and to couple it directly to the hub of the first embodiment of Walder to allow controlled movement of the obturator within the lumen for optimal control of the obturator. Regarding claim 3, Walder, as modified, discloses an obturator assembly as set forth above, wherein, in the locked configuration, the locking collar is configured to prevent movement of the obturator within the lumen with the obturator in the first position or the second position (“allow moving the distal end of rod forward to occlude, or rearward to allow fluid passage” – Col.6, lines 47-48). Regarding claim 4, Walder, as modified, discloses an obturator assembly as set forth above, wherein the locking collar comprises a tab (112 – Fig.10) configured to interfere with a depression formed in the obturator with the locking collar in the locked configuration (Figs.10-11, Col. 6, lines 31-48). Regarding claim 5, Walder, as modified, discloses an obturator assembly as set forth above, but Walder, as modified, does not expressly disclose the obturator further comprising electronic circuitry in the locking collar, the electronic circuitry coupled in signal communication with the sensor. Bickoff teaches an electronic circuitry (50 – Fig.9) in a hub, the electronic circuitry coupled in signal communication with a sensor (“sensor cable transmit electrical signals generated by the sensor assembly” – Para [0075]). It would be obvious to one in the ordinary skill in the art, before the effective filing date of the applicant’s claimed invention to modify the locking collar of Walder, as modified, to comprise an electronic circuitry and have it coupled in signal communication with the sensor as taught by Bickoff since electronic circuitry coupled with sensors is well-known for processing signals. Regarding claim 6, Walder, as modified, discloses an obturator assembly as set forth above, but Walder, as modified, does not expressly disclose the obturator further comprising an electrical contact positioned within the obturator, the electrical contact electrically coupled to the sensor; and an electrical lead wire extending through the obturator electrically coupling the electrical contact with the electronic circuitry. Bickoff teaches an electrical contact positioned within a hub (65 – Fig.9), the electrical contact electrically coupled to a sensor (Para [0080]); and an electrical lead wire (62 – Para [0080]) extending through the obturator electrically coupling the electrical contact with an electronic circuitry (50 – Fig.9)(“facilitating connection to a single-sided sensor cable” – Para [0080]). It would be obvious to one in the ordinary skill in the art, before the effective filing date of the applicant’s claimed invention to modify the obturator of Walder, as modified, to comprise an electrical contact position within coupled to the sensor and an electrical wire coupling the electrical contact with the electronic circuitry as taught by Bickoff in order to transmit signals generated by the sensor to the circuitry for processing, as sensors inherently require electrical connections to communicate sensed data. Regarding claim 8, Walder, as modified, discloses an obturator assembly as set forth above, but Walder, as modified, does not expressly disclose wherein the electronic circuitry comprises a connection port for connecting the electronic circuitry with remote reception circuitry. Bickoff teaches electronic circuitry comprising (171 – Fig.18) a connection port (172, 176 – Fig.18) for connecting the electronic circuitry with remote reception circuitry (Para [0090]). It would be obvious to one in the ordinary skill in the art, before the effective filing date of the applicant’s claimed invention to modify the electronic circuitry of Walder, as modified, to comprise a connection port as taught by Bickoff since connection ports are well-known to be routinely used to facilitate electrical data between devices. Regarding claim 9, Walder, as modified, discloses an obturator assembly as set forth above, wherein the sensor is configured to measure one or more of the following: a temperature within a body lumen (“temperature sensor” – Para [0018]). Regarding claim 10, Walder, as modified, discloses an obturator assembly as set forth above, wherein obturator has a central axis extending between the distal end and the proximal end of the obturator, at least a portion of the distal end having one of a symmetrical profile with respect to the central axis or an asymmetrical profile with respect to the central axis (Fig.1). Regarding claim 11, Walder, as modified, discloses an obturator assembly as set forth above, wherein the hub comprises a small-bore connector configured to couple the hub to a tube (42 – Fig.1, Col. 4, lines 53-54). Regarding claim 12, Walder, as modified, discloses an obturator assembly as set forth above, wherein, with the obturator in the first position, the tip portion is positioned within the lumen to prevent fluid flow into the lumen (Fig.2, “manipulating and feeding the obturator rod to and through the lumen in catheter in order to occlude completely lumen” – Col. 4, lines 59-63) and, with the obturator in the second position, the tip portion extends from the lumen in a distal direction to allow fluid flow into the lumen (Fig.1, “withdrawal of the obturator rod, as desired, for feeding fluid through the catheter” – Col.3, lines 66-67). Regarding claim 13, Walder, as modified, discloses an obturator assembly as set forth above, wherein the device comprises a small-bore connector (42 – Fig.1) and the proximal end of the obturator forms a channel (49 – Fig.1) in fluid communication with the lumen (Col.4, lines 47-54), the obturator assembly further comprising a seal positioned about an outer periphery of the proximal end of the obturator and contacting an inner surface of the small-bore connector at a proximal end of the device (48, 52, 54 – Fig.1, Col.4, lines 47-56). Regarding claim 14, Walder, as modified, discloses an obturator assembly as set forth above, wherein the seal is positioned within an annular slot formed in the inner surface of the small-bore connector (12 – Fig.6). Claim 7 is rejected under pre-AIA 35 U.S.C. 103(a) as being unpatentable over Walder in view of Bickoff as applied to claim 5 above, and further in view of Spotnitz at al. (US Pub No. 20120097174 A1, herein, Spotnitz) . Regarding claim 7, Walder, as modified, discloses an obturator assembly as set forth above, but Walder, as modified, does not expressly disclose the assembly further comprising communication circuitry in the locking collar, the communication circuitry coupled in signal communication with the electronic circuitry for wireless communication with remote reception circuitry. Spotnitz teaches an assembly comprising communication circuitry (632, Fig.6A) in a hub, the communication circuitry coupled in signal communication with the electronic circuitry (380 – Fig.3A, “One or more sensor wires traverse the stem from the sensor suite to a device end of the obturator to communicate measurements from the sensor” – Para [0096]) for wireless communication with remote reception circuitry (“wireless data transmission is use” – Para [0096]). It would be obvious to one in the ordinary skill in the art, before the effective filing date of the applicant’s claimed invention to modify the locking collar of Walder, as modified, to comprise communication circuitry coupled in signal communication with the electronic circuitry for wireless communication with remote reception circuitry as taught by Spotnitz since this is a well-known process for being used to transmit data from local circuitry to remote devices. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Marissa Taylor whose telephone number is (571)272-3542. The examiner can normally be reached Monday-Thursday 6:30am-3:30pm 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, Bhisma Mehta can be reached at (571) 272-3383. 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. /MARISSA TAYLOR/Examiner, Art Unit 3783 /BHISMA MEHTA/Supervisory Patent Examiner, Art Unit 3783
Read full office action

Prosecution Timeline

Jan 03, 2023
Application Filed
Apr 07, 2026
Non-Final Rejection mailed — §103 (current)

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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
77%
Grant Probability
99%
With Interview (+35.7%)
3y 7m (~1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 22 resolved cases by this examiner. Grant probability derived from career allowance rate.

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