Prosecution Insights
Last updated: October 02, 2026
Application No. 18/427,167

Controlled Tissue Dissection Systems and Methods

Final Rejection §103§DP
Filed
Jan 30, 2024
Priority
Jan 07, 2010 — provisional 61/292,899 +4 more
Examiner
DANG, ANH TIEU
Art Unit
3771
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Bioprotect Ltd.
OA Round
5 (Final)
66%
Grant Probability
Favorable
6-7
OA Rounds
8m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
432 granted / 660 resolved
-4.5% vs TC avg
Strong +36% interview lift
Without
With
+35.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
39 currently pending
Career history
689
Total Applications
across all art units

Statute-Specific Performance

§101
1.9%
-38.1% vs TC avg
§103
44.6%
+4.6% vs TC avg
§102
24.6%
-15.4% vs TC avg
§112
21.9%
-18.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 660 resolved cases

Office Action

§103 §DP
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. Priority Applicant’s claim for the benefit of a prior-filed application under 35 U.S.C. 119(e) or under 35 U.S.C. 120, 121, 365(c), or 386(c) is acknowledged. Applicant has not complied with one or more conditions for receiving the benefit of an earlier filing date as follows: The later-filed application must be an application for a patent for an invention which is also disclosed in the prior application (the parent or original nonprovisional application or provisional application). The disclosure of the invention in the parent application and in the later-filed application must be sufficient to comply with the requirements of 35 U.S.C. 112(a) or the first paragraph of pre-AIA 35 U.S.C. 112, except for the best mode requirement. See Transco Products, Inc. v. Performance Contracting, Inc., 38 F.3d 551, 32 USPQ2d 1077 (Fed. Cir. 1994). The disclosure of the prior-filed application, Application No. 61/412490 and Application No. 61/292899, fails to provide adequate support or enablement in the manner provided by 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph for one or more claims of this application. The provisional applications 61/412490 and 61/292899 fail to disclose the limitations set forth in claims 58 and 61, wherein the inflatable bladder is coated by a substantially slippery coating, and a mesh is attached to the surface of the inflatable bladder, these limitations are only previously described in PCT/IL2011/000018. Therefore, the claims are given a priority of January 6, 2011. Response to Arguments Applicants’ arguments filed July 1, 2026, have been fully considered but they are not persuasive in view of the interpretation of Paz set forth below addressing the amendments to the claims. Rejections - 35 USC § 102 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 the appropriate paragraphs of pre-AIA 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (b) the invention was patented or described in a printed publication in this or a foreign country or in public use or on sale in this country, more than one year prior to the date of application for patent in the United States. Claims 54-57, 59, 60, 62, and 75 are rejected under pre-AIA 35 U.S.C. 102(b) as being anticipated by Paz et al (US 20080033471). Regarding claim 54, Paz et al (hereafter Paz) tissue-dissecting device, comprising: an inflatable bladder (12) for inter-tissue or inter-organ spacing (tissue displacement or separation, title), the bladder defining an interior chamber and an inflation port (paragraph 0100) through which the interior chamber can be inflated; a tube (20, 22, paragraph 0099, figure 1e) detachably connected or connectable to the bladder such that in a connected state the tube is in fluid communication with the inflation port for inflating the bladder with a distal end of the tube disposed within the bladder; and a plug (viscosity of bladder expanding liquid, since the limitation ‘plug’ is sufficiently broad to encompass any obstruction blocking a hole) detachably connected to the distal end of the tube (paragraph 0100, expanding liquid is transferred from tube to bladder), the plug is arranged to be disposed inside the bladder (14 is part of bladder 12, paragraph 0100, 0102) with the distal end of the tube when the distal end of the tube is in the bladder to fill the bladder with a substance that inflates the bladder (expanding liquid), and wherein the plug is configured to be transferred from the tube to the bladder (expanding liquid is transferred from the tube to the bladder) to seal the inflation port as the tube is withdrawn (one-way valve, self-sealing, paragraph 0100) so as to maintain the bladder in an inflated state (paragraph 0100, self-sealing valve). Regarding claim 55, Paz teaches all of the limitations set forth in claim 54, wherein the bladder is in a rolled form in a deflated state (figure1b, paragraph 0042, 0071). Regarding claim 56, Paz teaches all of the limitations set forth in claim 55, wherein the bladder in its rolled form fits inside an introducer tube (paragraph 0102) having an inner diameter of less than 10 millimeters (1-5mm in diameter, paragraph 0099). Regarding claim 57, Paz teaches all of the limitations set forth in claim 54, further comprising a restrictor (28) connected to the bladder and configured to restrict, during or after inflation of the inflatable bladder (this is a functional limitation, and therefore since the restrictor is capable of restricting motion after a bladder is inflated and introduced therein, the prior art meets the limitations), motion of the bladder along a connection of the bladder to the restrictor (bladder is restricted within packaging tube 28 along the lumen of the restrictor when the bladder is confined therein, paragraph 0101-0102). Regarding claim 59, Paz teaches all of the limitations set forth in claim 54, wherein the inflatable bladder comprises a mix of Poly Lactic Acid (PLA) and Poly Capra Lactone (paragraph 0036). Regarding claim 60, Paz teaches all of the limitations set forth in claim 54, wherein the bladder is configured to laterally expand by inflation to dissect tissue (figure 1A, flattened shape, paragraph 0019). Regarding claim 62, Paz teaches all of the limitations set forth in claim 54, wherein the inflatable bladder comprises two opposing inner surfaces connected to each other by a connection that limits an inflated thickness of the inflatable bladder (flattened shape would have two inner surfaces opposing each other and would limit the inflated thickness to make a flat shape, paragraph 0019). Regarding claim 75, Paz teaches all of the limitations set forth in claim 54, wherein the plug (viscosity of bladder expanding liquid) is configured to disconnect from the distal end of the tube as the tube is withdrawn to allow the plug to remain inside the bladder to seal the inflation port (self-sealing when guide is detached). Regarding claim 76, Paz teaches a tissue-dissecting device, comprising: an inflatable bladder (12) for inter-tissue or inter-organ spacing, the bladder being inflatable from an uninflated state to an inflated state, the bladder comprising: an interior chamber; and an inflation port (paragraph 0100) in communication with the interior chamber; a tube (20, 22) comprising: a distal end disposed in the bladder; and a passage (lumen, paragraph 0099) in communication with the interior chamber for inflating the bladder; and a plug (viscosity of bladder expanding liquid, since the limitation ‘plug’ is sufficiently broad to encompass any obstruction blocking a hole) detachably connected to the distal end of the tube, wherein the plug is disposed inside the bladder with the distal end of the tube when the bladder is in the uninflated state and when the bladder is inflated with a substance, and wherein the plug is configured to be transferred from the tube to the bladder to snugly fit within the inflation port as the tube is withdrawn from the bladder so as to maintain the bladder in the inflated state (paragraph 0100, self-sealing of one-way valve). 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 pre-AIA 35 U.S.C. 103(a) which forms the basis for all obviousness rejections set forth in this Office action: (a) A patent may not be obtained though the invention is not identically disclosed or described as set forth in section 102, if the differences between the subject matter sought to be patented and the prior art are such that the subject matter as a whole would have been obvious at the time the invention was made to a person having ordinary skill in the art to which said subject matter 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 pre-AIA 35 U.S.C. 103(a) 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. Claim 58 is rejected under pre-AIA 35 U.S.C. 103(a) as being unpatentable over Paz et al (US 20080033471) as applied to claim 54 above, and further in view of Lunsford et al (US 5779728). Regarding claim 58, Paz teaches all of the limitations set forth in claim 54, but does not teach the inflatable bladder is coated by a substantially slippery coating. However, Lunsford teaches it was known in the art at the time of the invention to make inflatable bladders coated by a substantially slippery coating (distal end of inflatable bladder 512 is lubricated, C:36, L:46-57) in order to insert the apparatus into the incision. Therefore, it would have been obvious to one with ordinary skill in the art at the time of the invention to make the inflatable bladder of Paz further coated by a substantially slippery coating, as taught as known in the art by Lunsford, in order to insert the apparatus into the incision. Claim 61 is rejected under pre-AIA 35 U.S.C. 103(a) as being unpatentable over Paz et al (US 20080033471) as applied to claim 54 above, and further in view of Litvack et al (US 20110270295). Regarding claim 61, Paz teaches all of the limitations set forth in claim 54, and further teaches the surface of the inflatable bladder comprising surface structures such that when expanded a friction between the inflatable bladder surface and displaced tissue is increased without affecting the functionality of the device (paragraph 0074), but does not specifically teach a mesh attached to a surface of the inflatable bladder. Litvack et al (hereafter Litvack) teaches it was known in the art at the time of the invention to utilize mesh as a surface treatment on inflatable balloon structures to facilitate traction (paragraph 0022). Therefore, it would have been obvious to one with ordinary skill in the art at the time of the invention to include a mesh attached to a surface of the inflatable bladder, as taught by Litvack, as a suitable art-recognized equivalent surface structure at the time of the invention to the surface structures taught by Paz, since it has been held that mere substitution of art-recognized equivalents involves routine skill in the art. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 54-57 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1 and 14 of U.S. Patent No. 11918414 in view of Paz et al (US 20080033471). Although the claims at issue are not identical, they are not patentably distinct from each other because claim 1 and 14 of Patent 11918414 (hereafter Patent ‘414) recites the claimed inflatable bladder (claim 1), inflation port, tube (introducer tube), and restrictor (claim 14). Patent ‘414 claims lack a plug detachably connected to the distal end of the tube and configured to seal the inflation port as the tube is withdrawn to maintain the bladder in an inflated state, the bladder is in a rolled form in a deflated state, and the bladder in its rolled form fits inside an introducer tube having an inner diameter of less than 10mm. Paz teaches an inflatable bladder comprising a plug detachably connected to the distal end of the tube and configured to seal the inflation port as the tube is withdrawn to maintain the bladder in an inflated state (paragraph 0102), the bladder is in a rolled form in a deflated state (figure1b, paragraph 0042, 0071), and the bladder in its rolled form fits inside an introducer tube having an inner diameter of less than 10mm (1-5mm in diameter, paragraph 0099). It would have been obvious to one with ordinary skill in the art at the time of the invention to modified the device in claim 1 of Patent ‘414 to include a plug detachably connected to the distal end of the tube and configured to seal the inflation port as the tube is withdrawn to maintain the bladder in an inflated state, as taught by Paz, in order to prevent deflation. It also would have been obvious to one with ordinary skill in the art at the time of the invention to modified the device in claim 1 of Patent ‘414 to include the bladder is in a rolled form in a deflated state and the bladder in its rolled form fits inside an introducer tube having an inner diameter of less than 10mm, as taught by Paz, in order to make it suitable for minimally invasive techniques. Allowable Subject Matter Claim 63 is 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. The following is a statement of reasons for the indication of allowable subject matter: The prior art teaches all of the limitations set forth in claim 54, however claims 58 and 62 have not been rejected over the body of prior art because no reference could be found that teaches the combination of limitations set forth in claim 54 with the inflatable bladder defining a hole therethrough between opposite broad sides of the bladder, since there is no teaching, suggestion, or motivation to produce the claimed invention. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 ANH TIEU DANG whose telephone number is (571)270-3221. The examiner can normally be reached Monday-Thursday (9am-4pm 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, Darwin Erezo can be reached at (571) 272-4695. 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. /ANH T DANG/Primary Examiner, Art Unit 3771
Read full office action

Prosecution Timeline

Show 5 earlier events
Jul 22, 2025
Response Filed
Nov 12, 2025
Final Rejection mailed — §103, §DP
Feb 06, 2026
Response after Non-Final Action
Mar 02, 2026
Request for Continued Examination
Mar 17, 2026
Response after Non-Final Action
Apr 01, 2026
Non-Final Rejection mailed — §103, §DP
Jul 01, 2026
Response Filed
Sep 23, 2026
Final Rejection mailed — §103, §DP (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

6-7
Expected OA Rounds
66%
Grant Probability
99%
With Interview (+35.5%)
3y 4m (~8m remaining)
Median Time to Grant
High
PTA Risk
Based on 660 resolved cases by this examiner. Grant probability derived from career allowance rate.

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