Prosecution Insights
Last updated: April 19, 2026
Application No. 17/791,898

DRUG INJECTION DEVICE

Non-Final OA §103
Filed
Jul 10, 2022
Examiner
RADOMSKI, MARTIN ADAM
Art Unit
3783
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Samsung Electronics
OA Round
3 (Non-Final)
19%
Grant Probability
At Risk
3-4
OA Rounds
4y 0m
To Grant
86%
With Interview

Examiner Intelligence

Grants only 19% of cases
19%
Career Allow Rate
4 granted / 21 resolved
-51.0% vs TC avg
Strong +67% interview lift
Without
With
+66.7%
Interview Lift
resolved cases with interview
Typical timeline
4y 0m
Avg Prosecution
54 currently pending
Career history
75
Total Applications
across all art units

Statute-Specific Performance

§103
50.3%
+10.3% vs TC avg
§102
24.4%
-15.6% vs TC avg
§112
21.4%
-18.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 21 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on December 5th 2025 has been entered. Response to Amendment The amendment filed December 5th 2025 has been entered. Claims 1-4, 6, 12, 14-22, 24-25 and 32-33 are pending in the application. Applicant’s amendments to the Specification, Drawings, and Claims have not overcome each and every objection previously set forth in the Final Office Action mailed August 6th 2025. Claim Objections Claims 1 and 33 are objected to because of the following informalities: Regarding claim 1, “an inner side of an insertion part” should be corrected to “an inner side of the insertion part” and “the radius of curvature of the movable part” should be corrected to “a radius of curvature of the movable part” for claim language consistency. And, “seated is in closely contact” should be changed to “seated is in close contact” for clarity. Appropriate correction is required. Regarding claim 33, “claim 1, The” should be changed to “claim 1, wherein the”, or similarly (see MPEP 2111.04), for clarity. Applicant is advised that should claim 3 be found allowable, claim 33 will be objected to under 37 CFR 1.75 as being a substantial duplicate thereof. When two claims in an application are duplicates or else are so close in content that they both cover the same thing, despite a slight difference in wording, it is proper after allowing one claim to object to the other as being a substantial duplicate of the allowed claim. See MPEP § 608.01(m). 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, 6, 12, 14, and 16-18 are rejected under 35 U.S.C. 103 as being unpatentable over Parmer (US 20040267284), in view of Ferrara (US 4809694 A). Regarding claim 1, Parmer discloses a drug injection device that is fixedly implanted between a skull and a scalp of a patient to inject a drug (Fig. 2, [0124] and [0014]) comprising: a main body that is fixedly implanted in contact with the skull (mounting seat 1402 being the bottom portion of two-piece base 210 which is operable to attached to the skull of a patient, [0079], [0117], and Fig. 2, 14a and 14b); a main body fixing part (collar 1404 which is the top portion of two-piece base 210, [0117] & Fig. 14a and 14b) that has an internal hole to be adjacent to the main body and is fixedly coupled to the main body to face the main body (collar 1404 having an internal hole, Fig. 14a and 14b, and seat 1402 coupled together with collar 1404 with screws 1406, [0117] & Fig. 14a and 14b); a movable part (movable member 220, [0117] & Fig. 14a and 14b) that is positioned between the main body and the main body fixing part (member 220 positioned inside of the two-piece base 210, situated inside of collar 1404 and seat 1402, [0117] & Fig. 14a and 14b), has a drug injection hole at a central part thereof (opening 222, [0080] & Fig. 5b), and is able to change a direction of the movable part toward a target point (member 220 capable of swiveling to align with a target point, [0013], [0017], & Fig. 2); a sealing part (stabilizer 227, [0090] & Fig. 5b) that is configured to seal the drug injection hole of the movable part (via stabilizer 227 configured to frictionally engage instrument 229; this frictional engagement seals the opening 222, [0095] & Fig. 5f and 5g), into which an injection needle for injecting a drug is inserted (instrument 229, which may be a needle, being inserted into stabilizer 227, [0019], [0095] & Fig. 5f and 5g); a movable lid part (guide stem 240, [0079] & Fig. 5c and 5d) that is positioned above the sealing part to close and fix the movable part, prevents the sealing part from being separated and escaping an outside (guide stem 240 positioned above stabilizer 227 and operable to prevent stabilizer 227 from escaping or separating, [0093] & Fig. 5c), and identifies an implantation position of the drug injection device to guide a point for repeated administration (via “a surgical instrument or observational tool can be inserted into the opening 242 of the guide stem 240 and passed through the passage in the movable member 220 and then further inserted into the patient a selected distance to the target 270,” [0080] & Fig. 2 and 5e); and at least two fastening members (screws 1406, [0117] & Fig. 14a) that fasten an upper part of the main body and an upper part of the main body fixing part to the skull (via “collar 1404 includes a coupler, such as countersunk holes for receiving screws 1406 that detachably engage internally threaded receptacles 1408 in base 1402,” [0117] & Fig. 14a and 14b), wherein the main body includes a support part (flange with bone screw holes, [0117] & Fig. 14a and 14b) and an insertion part extending vertically from the support part (bottom portion of seat 1402 below the flange with bone screw holes, [0117] & seen in Fig. 14b) with a movable part accommodating hole (hemispherical recess in seat 1402, [0117] & Fig. 14a and 14b, which is disclosed and illustrated with respect to the one-piece embodiment of base 210: “an opening in the base 210 having a first end which terminates at the seat 218 and another end which terminates at the bottom of the base 210.”, [0081]-[0082] & Fig. 6a and 6f; see [0098] for disclosure of base 1400 simply being a two-piece embodiment of base 210 in which one of ordinary skill in the art would understand to contain synonymous structures), an outer diameter of the support part is greater than an outer diameter of the movable part (the diameter of the flange of 1402 encompassing the entire member 220, Fig 14a), and the main body and the main body fixing part are adjacently coupled to each other to accommodate and fix the movable part (via the two-piece base 210, seat 1402 and collar 1404, coupled together with screws 1406 and receiving the movable member 220, [0117] & Fig. 14a and 14b), wherein the insertion part has an upper member which has a radius of curvature corresponding to the radius of curvature of the movable part formed in a spherical shape (semi-spherical seat 218 is being interpreted an upper member, [0081]-[0082] & Fig. 6a and annotated Fig. 6f below; “the movable member 220 is essentially a spherical member or a ball. The spherical member or ball fits within the seat 218. The spherical member or ball moves freely within the seat 218.”; “a seat 218 that receives movable member 220.”, [0097]) and a lower member extended from the upper member (the lower surface defining the other “end which terminates at the bottom of the base 210” is being interpreted as a lower member extended from the upper member, [0081] & annotated Fig. 6f below), wherein an entire upper surface of the upper member with which the movable part is seated is closely contact with a surface of the movable part so as to surround the movable part without any space between the upper member and the movable part (“the movable member 220 is essentially a spherical member or a ball. The spherical member or ball fits within the seat 218. “, [0082]; the entire upper surface of seat 218 would be in close contact with the surface of movable member 220 and surround moveable member 220 without any space between seat 218 and member 220 as the surfaces are both spherical and seat 218 contains no openings, grooves, indentations, etc., see Fig. 6a, 6f, and 6g). PNG media_image1.png 381 322 media_image1.png Greyscale However, Parmer does not explicitly disclose a drug injection device comprising a diameter of the movable part accommodating hole gradually decreases and increases in a longitudinal direction of the insertion part, thereby tapering an inner side of an insertion part and wherein an outer diameter of the support part is smaller than an outer diameter of the main body fixing part. However, Ferrara teaches a device (abstract) comprising a diameter of the movable part accommodating hole gradually decreases and increases in a longitudinal direction of the insertion part, thereby tapering the inner side of an insertion part (the diameter of axial passage 34, which is defined by upper compartment 36, inner annular support member 32, and the inside of lower threaded section 24, and being interpreted as a movable part accommodating hole, decreases and increases in a longitudinal direction of the lower threaded section 24, thereby tapering an inner side of section 24, see Col 3 lines 6-16 & Fig. 4). Therefore, it would have been obvious to one of ordinary skill in the art, prior to the effective filing date of the claimed invention, to modify the drug injection device of Parmer with Ferrara to include a diameter of the movable part accommodating hole gradually decreases and increases in a longitudinal direction of the insertion part, thereby tapering the inner side of an insertion part, since such a modification would provide the instrument with greater range of motion and yield predictable results pertaining to movable member retention and instrument guidance while still providing structure to retain a spherical member (see Col 3 lines 7-16 & Fig. 4 of Ferrara). As modified, the lower member of the insertion part of Parmer, as illustrated in annotated Fig. 6f above, would be modified to include the tapered axial passageway 34 of section 24 of Ferrara. Further, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to cause the injection device of Parmer to have the outer diameter of the support part be smaller than an outer diameter of the main body fixing part since it has been held that “where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device” Gardner v. TEC Syst., Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert. denied, 469 U.S. 830, 225 SPQ 232 (1984). In the instant case, the drug injection device of Parmer would not operate differently with the claimed diameter since the support part and main body fixing part would still be able to be coupled together and would function appropriately having the claimed diameter. Further, applicant places no criticality on the range claimed, indicating simply that the diameter is within the claimed ranges ([0048]). Regarding claim 6, Parmer, as modified, discloses all the limitations of claim 1. Parmer further discloses the drug injection device wherein the main body fixing part includes an identification part that has a curved surface that protrudes upwards to be identifiable (cap 1312 having a curved edge all around the outermost part, Fig. 13b), and a support coupling groove that has a curved lower part that is concave in shape and matches the shape of the support part of the main body for easy coupling (the underside of cap 1312 aligning with the curved base 1302 edges, [0116] & Fig. 13b), and the support coupling groove is formed with at least one protrusion accommodating groove (one of groove 1316, [0116] & Fig. 13b and 13c) and a head accommodating groove that face the main body for coupling (second groove 1316, [0117] & Fig. 13b and 13c). However, Parmer fails to explicitly disclose the drug injection device wherein the support coupling groove satisfies the following Conditional Expression 6: <Conditional Expression 6> 5 < R1 ≤ 15 [mm] where R1 represents a radius of the support coupling groove. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to cause the cap of Parmer to have the claimed radius since it is being interpreted as a design choice. The court “held that the configuration of the claimed... container was a matter of choice which a person of ordinary skill in the art would have found obvious absent persuasive evidence that the particular configuration of the claimed container was significant, In re Dailey, 357 F.2d 669, 149 USPQ 47 (CCPA 1966). See MPEP 2144.04 IV B. In the instant case, the drug injection device of Parmer, as modified, would not operate differently with the claimed radius since the radius is simply meant to match the shape of the support part and help secure the main body fixing part to the main body. The cap of Parmer is configured to do the same ([0116] & Fig. 13b and 13d). Regarding claim 12, Parmer, as modified, discloses all the limitations of claim 1. Parmer further disclose the drug injection device wherein the sealing part is configured so that the sealing part and the movable lid part satisfy at least one of the following Conditional Expressions 11 and 12: <Conditional Expression 11> 1 < D11/D10 ≤ 7.2 <Conditional Expression 12> 0.4 ≤ L7/L6 ≤ 20 where D10 represents an outer diameter of the sealing part, D11 represents an outer diameter of the movable lid part, L6 represents a height of the sealing part, and L7 represents a height of the movable lid part (the outer diameter of the sealing part is slightly smaller than the outermost diameter of the movable lid part as seen in Figure 5d; this satisfies conditional expression 11). Regarding claim 14, Parmer, as modified, discloses all the limitations of claim 1. Parmer further discloses the drug injection device wherein the movable lid part includes an injection needle accommodating part that is formed with a hole (opening 242, [0095] & Fig. 5c) into which the injection needle is injected at a central part thereof (instrument 229, which is being interpreted as the injection needle, being inserted into opening 242, [0095] & Fig. 5d), a position indicating part that includes the injection needle accommodating part therein and is positioned outside the movable part (threads on the outer section of the top of guide stem 240, Fig. 15a) and a movable fastening member that is connected to the position indicating part, is formed with a screw-thread on an outside thereof, and is screw-coupled with the drug injection hole (external threads 241, which are being interpreted as the movable fastening member, being screwed into internal threads 225 of member 220, [0093] & Fig. 5a and 5b; the threads on the outer section of the top of guide stem 240 seen in Fig. 15a, which are being interpreted as the position indicating part, are not the same threads as threads 241, which are being interpreted as the movable fastening member). The combination of the two embodiments above, embodiment of Figure 5 and embodiment of Figure 15, is suitable since it has been held that combining two embodiments disclosed adjacent to each other in a prior art patent does not require a leap of inventiveness and involves only routine skill in the art, Boston Scientific v. Cordis Fed. Cir. 2009. The prior art also indicates “like reference numerals describe substantially similar components throughout the several views,” [0023]. Regarding claim 16, Parmer, as modified, discloses all the limitations of claim 14. Parmer further discloses the drug injection device wherein the position indicating part satisfies the following Conditional Expression 14: <Conditional Expression 14> 0.4 ≤ L7a/L7 < 1 where L7 represents a total height of the movable lid part, and L7a represents a height of the position indicating part. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to cause the device of Parmer to have the dimensions of the movable lid part and position indicating part since it has been held that “[W]here the general conditions of a claim are disclosed in the prior art, it is not inventive to discover the optimum or workable ranges by routine experimentation." In re Aller, 220 F.2d 454, 456, 105 USPQ 233, 235 (CCPA 1955). Parmer places no criticality on the dimensions of the guide stem 240. The guide stem of Parmer would be able to operate under the conditions of the claimed ratio. Regarding claim 17, Parmer, as modified, discloses all the limitations of claim 1. Parmer further discloses the drug injection device wherein the fastening member includes a body part that is fixedly implanted in the skull (portion of screw 1406 threaded into the skull, [0117] & Fig. 14b), and a head part that is connected to the body part (head of screw 1406 that remains in countersunk hole on collar 1404, [0117] & Fig. 14a) and the body part and the head part satisfy at least one of the following Conditional Expressions 15 and 16: <Conditional Expression 15> 1 < D12/D11 ≤ 50 <Conditional Expression 16> 1 < L9/L8 ≤ 100 where D11 represents an outer diameter of the body part, D12 represents an outer diameter of the head part, L9 represents a length of the body part, and L8 represents a length of the head part (the length of the head of screw 1406 is substantially smaller than the length of the portion of screw 1406 threaded into the skull which satisfies conditional expression 16, Fig. 14a and 14b). Regarding claim 18, Parmer, as modified, discloses all the limitations of claim 17. Parmer further discloses the drug injection device wherein the head part includes a horizontal groove (head of screw 1406 having a horizontal groove, Fig. 14a), and an identification groove that is formed to be identifiable in a cross shape with reference to the horizontal groove (the second horizontal groove on the head of screw 1406 creating the shape of a cross, Fig. 14a), and the horizontal groove and the identification groove satisfy the following Conditional Expression 17: <Condition 17> 0.06 ≤ D13/L8a ≤ 12 where L8a represents a depth of the identification groove, and D13 represents an outer diameter of the horizontal groove. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to cause the injection device of Parmer to have the depth of the identification groove and an outer diameter of the horizontal groove within the claimed ratio since it has been held that claimed ratios were obvious as being reached by routine procedures and producing predictable results, Merck & Co. Inc. v. Biocraft Lab. Inc., 874 F.2d 804, 809, 10 USPQ2d 1843, 1848 (Fed. Cir. 1989), cert. denied, 493 U.S. 975 (1989). See MPEP 2144.05 II A. In the instant case, the drug injection device of Parmer would not operate differently with the claimed ratio since the ratio includes dimensions that are essentially necessary for operation of a screw, like the screw 1406 of Parmer. Claim 2 is rejected under 35 U.S.C. 103 as being unpatentable over Parmer (US 20040267284), in view of Ferrara (US 4809694 A), and further in view of Yoo (WO 2018199592 A1). Regarding claim 2, Parmer, as modified, discloses all the limitations of clam 1. Parmer further discloses the drug injection device wherein the main body further includes an insertion part that is inserted into the skull (portion of seat 1402 below the flange with screw holes, [0117] & Fig. 14b). However, Parmer fails to expressly disclose the drug injection device wherein the insertion part satisfies at least one of the following Conditional Expressions 1 and 2: <Conditional Expression 1> 1 < D1/D2 ≤ 3 <Conditional Expression 2> 2 ≤ L1 ≤ 7 [mm] where D1 represents an outer diameter of the insertion part, D2 represents an inner diameter of the movable part accommodating hole, and L1 represents an insertion height of the insertion part. However, Yoo teaches disclose the drug injection device wherein the insertion part satisfies at least one of the following Conditional Expressions 1 and 2: <Conditional Expression 1> 1 < D1/D2 ≤ 3 <Conditional Expression 2> 2 ≤ L1 ≤ 7 [mm] where D1 represents an outer diameter of the insertion part, D2 represents an inner diameter of the movable part accommodating hole, and L1 represents an insertion height of the insertion part (via member 200 may be in a range of 6-8 mm which satisfies expression 2, [89] & Fig. 1). Therefore, it would have been obvious to one of ordinary skill in the art, prior to the effective filing date of the claimed invention, to modify the device of Parmer, as modified, with Yoo to include the height of the insertion part to be within 2-7 mm since such a modification would limit the size of the inserting part. This modification provides predictable results pertaining to minimizing the amount of bone needed for removal prior to device insertion ([91] of Yoo). Claims 3-4, 20-22, 24, and 33 are rejected under 35 U.S.C. 103 as being unpatentable over Parmer (US 20040267284), in view of Ferrara (US 4809694 A), and further in view of Na Duk (KR 20140137308 A). Regarding claim 3, Parmer, as modified, discloses all the limitations of claim 1. Parmer further discloses the drug injection device wherein the support part includes at least one first fastening hole that is positioned at the upper part of the main body (internally threaded receptacles 1408 formed in the flange of seat 1402, [0117] & Fig. 14a and 14b), in which the fastening member is fixedly inserted (via screws 1406 engaging receptacles 1408, [0117] & Fig. 14b). However, Parmer fails to expressly disclose at least one fixing protrusion that is fixedly coupled to the main body fixing part, and satisfies the following Conditional Expression 3: <Conditional Expression 3> 12 ≤ D3/L2 ≤ 60 where D3 represents the outer diameter of the support part, and L2 represents a height of the support part. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to cause the device of Parmer to have the outer diameter of the support part and a height of the support part within the claimed ratio since it has been held that “where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device” Gardner v. TEC Syst., Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert. denied, 469 U.S. 830, 225 SPQ 232 (1984). In the instant case, the device of Parmer would not operate differently with the claimed dimensions since the flange of the seat is intended to attach the seat to the skull and have a low profile. The device would function appropriately having the claimed dimensions. Na Duk teaches a fixing protrusion that is fixedly coupled to the main body fixing part (protrusion 135a, [0053] & Fig. 8). Therefore, it would have been obvious to one of ordinary skill in the art, prior to the effective filing date of the claimed invention, to modify the device of Parmer, as modified, with Na Duk to include the protrusion since such a modification would allow for further connection of parts included in the drug injection device. This modification provides predictable results pertaining to secure connection between parts ([0058] & Fig. 8 and 19). Regarding claim 4, Parmer, as modified, discloses all the limitations of claim 3. However, Parmer fails to expressly disclose the drug injection device wherein the fixing protrusion satisfies the following Conditional Expression 4: <Conditional Expression 4> 0.3 ≤ D4/L3 ≤ 5 where D4 represents an outer diameter of the fixing projection, and L3 represents a height of the fixing protrusion. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to cause the device of Parmer, as modified, to have the dimensions of the fixing protrusion within the claimed ratio since it has been held that “where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device” Gardner v. TEC Syst., Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert. denied, 469 U.S. 830, 225 SPQ 232 (1984). In the instant case, the device of Parmer, as modified, would not operate differently with the claimed dimensions and since the protrusion is designed to fasten to grooves 111a, the dimensions of the protrusion could be modified to ensure a proper connection. The device would function appropriately having the claimed dimensions. Regarding claim 20, Parmer, as modified, discloses all the limitations of claim 1. Parmer fails to expressly disclose the drug injection device further comprising a guide tube that is connected to the movable part and is inserted to a position close to the target point, and guides the injection needle for injecting the drug into the target point in the direction of the target point. However, Na Duk teaches the drug injection device further comprising a guide tube (catheter 140, [0042] & Fig. 6 and 17) that is connected to the movable part (catheter 140 capable of being connected to another part of the drug injection device, such as chamber 130, [0034] & Fig. 5) and is inserted to a position close to the target point (via catheter 140 being inserted into location 12, [0059], [0102] & Fig. 13), and guides the injection needle for injecting the drug into the target point in the direction of the target point (via the needle 181 being inserted into the catheter and injecting stem cells into the location 12, [0064] & Fig. 15). Therefore, it would have been obvious to one of ordinary skill in the art, prior to the effective filing date of the claimed invention, to modify the drug injection device of Parmer, as modified, with Na Duk to include the catheter connected to the movable part and inserted to a position close to the target point since such a modification would provide structure to guide the injection needle to a location in need of therapeutic treatment. The modification provides predictable results pertaining to creating a connection to a target point in the brain, such as a lesion ([0034] and [0059] of Na Duk). Regarding claim 21, Parmer, as modified, discloses all the limitations of claim 20. Parmer fails to explicitly disclose the drug injection device wherein the guide tube further includes a tube connection part that is mounted on a lower end part of the drug injection hole, connects the movable part and the guide tube, and is formed with a hole connected to the inside of the guide tube. However, Na Duk teaches the drug injection device wherein the guide tube further includes a tube connection part (protrusion 134, [0042] & Fig. 6 and 17) that is mounted on a lower end part of the drug injection hole (protrusion 134 mounted on a lower end of cap 150, [0042] & Fig. 6, 8, and 19), connects the movable part and the guide tube (protrusion 134 capable of connecting the catheter 140 to another part of the drug injection device, such as chamber 130, [0034] & Fig. 5), and is formed with a hole connected to the inside of the guide tube (hole 137 formed in a central portion of the protrusion 134, Fig. 8). Therefore, it would have been obvious to one of ordinary skill in the art, prior to the effective filing date of the claimed invention, to modify the drug injection device of Parmer, as modified, with Na Duk to include the guide tube connection part formed with a hole connected to the inside of the guide tube since such a modification would provide structure to connect the guide tube to the drug injection device ([0034] of Na Duk). Regarding claim 22, Parmer, as modified, discloses all the limitations of claim 20. Parmer fails to expressly disclose the drug injection device wherein the guide tube satisfies the following Conditional Expression 19: <Conditional Expression 19> 1 < D14b/D14a ≤ 3.5 where D14a represents an inner diameter of the guide tube, and D14b represents an outer diameter of the guide tube. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to cause the device of Parmer, as modified, to have the inner and outer diameters of the guide tube fall within the claimed ratio since it has been held that “where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device” Gardner v. TEC Syst., Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert. denied, 469 U.S. 830, 225 SPQ 232 (1984). In the instant case, the device of Parmer, as modified, would not operate differently with the claimed diameters and since the catheter is designed to be implanted into brain tissue and guide an injection needle the device would function appropriately having the claimed diameter. Regarding claim 24, Parmer, as modified, discloses all the limitations of claim 21. Parmer fails to explicitly disclose the drug injection device wherein the tube connection part satisfies at least one of the following Conditional Expressions 20 and 21: <Conditional Expression 20> 1 < D15/D16 ≤ 20 <Conditional Expression 21> 0.5 ≤ L10 ≤ 1.5 [mm] where D15 represents an outer diameter of the tube connection part, D16 represents an inner diameter of the tube connection part, and L10 represents a height of the tube connection part. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to cause the device of Parmer, as modified, to have dimensions of the guide tube connection part fall within the claimed ranges since it has been held that “where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device” Gardner v. TEC Syst., Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert. denied, 469 U.S. 830, 225 SPQ 232 (1984). In the instant case, the device of Parmer, as modified, would not operate differently with the claimed diameters and since the protrusion is designed to guide an injection needle the device would function appropriately having the claimed diameter. Regarding claim 33, Parmer, as modified, discloses all the limitations of claim 1. However, Parmer fails to explicitly disclose the drug injection device the support part includes at least one fixing protrusion that is fixedly coupled to the main body fixing part. However, Na Duk teaches a fixing protrusion that is fixedly coupled to the main body fixing part (protrusion 135a, [0053] & Fig. 8). Therefore, it would have been obvious to one of ordinary skill in the art, prior to the effective filing date of the claimed invention, to modify the device of Parmer, as modified, with Na Duk to include a fixing protrusion that is fixedly coupled to the main body fixing part since such a modification would allow for further connection of parts included in the drug injection device. This modification provides predictable results pertaining to secure connection between parts ([0058] & Fig. 8 and 19). Claim 15 is rejected under 35 U.S.C. 103 as being unpatentable over Parmer (US 20040267284), in view of Ferrara (US 4809694 A), and further in view of Nelson (US 20140276416 A1). Regarding claim 15, Parmer, as modified, discloses all the limitations of claim 14. Parmer fails to expressly disclose the drug injection device wherein the injection needle accommodating part satisfies the following Conditional Expression 13: <Conditional Expression 13> A1 ≥ A2 where Al represents an angle of an upper end part of the needle accommodating part, which is an angle on the left and right with reference to a central axis, and A2 represents an angle of a middle portion of the needle accommodating part. However, Nelson teaches the drug injection device wherein the injection needle accommodating part satisfies the following Conditional Expression 13: <Conditional Expression 13> A1 ≥ A2 where A1 represents an angle of an upper end part of the needle accommodating part, which is an angle on the left and right with reference to a central axis, and A2 represents an angle of a middle portion of the needle accommodating part (via bore 218 may include “chamfer or radius 240 near the uppermost surface 215 as shown in FIG. 5... to assist with placing the catheter 102 into bore 218, [0107] & Fig. 5; the chamfer creates a greater angle near the top of the bore of the member 214 compared to a lower end of the bore). Therefore, it would have been obvious to one of ordinary skill in the art, prior to the effective filing date of the claimed invention, to modify the device of Parmer, as modified, with Nelson to include the upper end part having a greater angle compared to a middle portion since such a modification would assist in placing a medical instrument ([0107] of Nelson). The modification provides predictable results pertaining to safe device use. Claim 19 is rejected under 35 U.S.C. 103 as being unpatentable over Parmer (US 20040267284), in view of Ferrara (US 4809694 A), and further in view of Balfour (US 20080215099 A1) Regarding claim 19, Parmer, as modified, discloses all the limitations of claim 17. Parmer further discloses the drug injection device wherein the body part is fixedly implanted in the skull (screws 1406 intended to screw into the skull, [0117] & Fig. 2). However, Parmer fails to explicitly disclose the drug injection device wherein the body part is formed with a tapered screw-thread to the end thereof, and is formed with at least one pressure reducing groove that satisfies the following Conditional Expression 18: <Conditional Expression 18> 1 < L9/L9a ≤ 50 where L9 represents a length of the body part, and L9a represents a length of a portion in which the pressure reducing groove is formed. However, Balfour teaches the drug injection device wherein the body part is formed with a tapered screw-thread to the end thereof (threaded body 11, [0018] & Fig. 1), and is formed with at least one pressure reducing groove (cutting flute 4, [0017] & Fig. 1; the cutting flute structure is capable of reducing pressure, as is known in the art) that satisfies the following Conditional Expression 18: <Conditional Expression 18> 1 < L9/L9a ≤ 50 where L9 represents a length of the body part, and L9a represents a length of a portion in which the pressure reducing groove is formed (the cutting flute varies in length to assist in the self-tapping of the screw without jeopardizing the structural characteristics of the thread, [0017] & Fig. 1; therefore, the length can be changed to satisfy the conditional expression 18 above). Therefore, it would have been obvious to one of ordinary skill in the art, prior to the effective filing date of the claimed invention, to modify the device of Parmer, as modified, with Balfour to include the body part being formed with a tapered screw-thread to the end, and being formed with at least one pressure reducing groove that satisfies Conditional Expression 18, since such a modification would assist in the self-tapping of the screw. The modification provides predictable results pertaining to improved screw use. Claim 25 is rejected under 35 U.S.C. 103 as being unpatentable over Parmer (20040267284) in view of Ferrara (US 4809694 A), as modified by Na Duk (KR 20140137308 A), and further in view of Mokarram-Dorri (US 10493233 B1). Regarding claim 25, Parmer, as modified, discloses all the limitations of claim 20. Parmer fails to explicitly disclose the drug injection device wherein the guide tube is configured so that at least one drug injection hole is formed on one side or both sides thereof so that the drug flows without accumulation, and the inner and outer diameters of the end part of the guide tube are formed in a curved shape to minimize tissue damage when inserted into the skull. However, Mokarram-Dorri teaches the drug injection device wherein the guide tube is configured so that at least one drug injection hole is formed on one side or both sides thereof so that the drug flows without accumulation (opening 25 capable of allowing drug to flow without accumulation, Col 5 lines 13-16 & Fig. 4), and the inner and outer diameters of the end part of the guide tube are formed in a curved shape to minimize tissue damage when inserted into the skull (the end of tube 70, the internal and external wall, being formed in a curved shape, Fig. 4). Therefore, it would have been obvious to one of ordinary skill in the art, prior to the effective filing date of the claimed invention, to modify the device of Parmer, as modified, with Mokarram-Dorri to include the drug injection hole and the curved inner and outer diameters at an end part since such a modification would allow for the passage of fluid from the catheter to the brain. The modification provides predictable results pertaining to unobstructed fluid delivery to safely accessed brain tissue (Col 3 lines 30-40 & Fig. 4). Claim 32 is rejected under 35 U.S.C. 103 as being unpatentable over Parmer (20040267284), in view of Ferrara (US 4809694 A), and further in view of Song (KR 20190099877 A). Regarding claim 32, Parmer, as modified, discloses all the limitations of claim 1. Parmer further discloses the drug injection device wherein the movable lid part includes a position indicating part having a hole at a center of the position indicating part (threads on the outer section of the top of guide stem 240 and the internal extension of guide stem 240 is being interpreted as the position indicating part, Fig. 5c and 15a; see annotated Fig. 5c below; there being a hole in the center of the top surface of guide stem 240, see Fig. 5a and 15a), and a movable fastening part partially surrounding the position indicating part and configured to have an external screw thread to threadedly be engaged with the drug injection hole of the movable part (external threads 241, which are being interpreted as the movable fastening member, being screwed into internal threads 225 of member 220, [0093] & Fig. 5a and 5b; see annotated Fig. 5c below in which the movable fastening part partially surrounds the position indicating part). However, Parmer fails to explicitly disclose the position indicating part having a funnel shaped hole at a center of the position indicating part. However, Song teaches a drug injection device (abstract) comprising a position indicating part (guide member 60, [0032] & Fig. 11-12) having a funnel shaped hole at a center of the position indicating part (member 60 having a recessed introduction region 64 formed at an upper end of pillar portion 61a forming the start of center guide hole 65, [0032] & Fig. 11-12; “the introduction region 64 may be provided in the form of an inclined groove formed with an inclined surface along the circumference”, [0032]). Therefore, it would have been obvious to one of ordinary skill in the art, prior to the effective filing date of the claimed invention, to modify the guide stem of Parmer, as modified, with Song to include the position indicating part having a funnel shaped hole at a center of the position indicating part since such a modification would aid in the retention and insertion of an additional instrument and yield predictable results pertaining to ease of device use (see [0032] of Song). PNG media_image2.png 787 440 media_image2.png Greyscale Response to Arguments Applicant’s arguments with respect to independent claim 1 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Applicant argued Ferrara would not teach the new limitations, as rejected above the Examiner relies on Parmer to address the new recitations. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MARTIN ADAM RADOMSKI whose telephone number is (571)272-2703. The examiner can normally be reached Monday-Friday: 7:30-4:30 CT. 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, Kevin Sirmons can be reached at (571) 272-4965. 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. /MARTIN A RADOMSKI/Examiner, Art Unit 3783 /EMILY L SCHMIDT/Primary Examiner, Art Unit 3783
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Prosecution Timeline

Jul 10, 2022
Application Filed
Feb 19, 2025
Non-Final Rejection — §103
Jun 24, 2025
Response Filed
Aug 01, 2025
Final Rejection — §103
Dec 05, 2025
Request for Continued Examination
Dec 21, 2025
Response after Non-Final Action
Feb 18, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 5m to grant Granted Mar 24, 2026
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2y 5m to grant Granted Mar 10, 2026
Study what changed to get past this examiner. Based on 2 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
19%
Grant Probability
86%
With Interview (+66.7%)
4y 0m
Median Time to Grant
High
PTA Risk
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