US6709428B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needle design and manufacturing method for medical applications
Assignee: Baxter Healthcare Corp
•
Filing: 2001-05-25
•
Granted: 2004-03-23
•
Expires: 2021-05-25
Abstract
Abstract The present invention is directed to a novel process for inserting a cannula into a hub member. The process uses an interference or frictional fit between the bore of the hub member and the cannula's exterior surface. In this manner, adhesives are not required in the assembly of the two components.
Inventors
- 👤 William E. Sagstetter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:15
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/56; B29C65/64; A; A61; A61B; A61B17/00; A61B17/34; A61B17/3417; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/34; A61M5/343; A61M5/346; B21; B21G; B21G1/00; B21G1/08; B29C66/00; B29C66/70; B29C66/73; B29C66/731; B29C66/7316; B29C66/73161; A61B2017/00526; A61M2207/00; A61M5/14; A61M5/158; B29C66/71; B29C66/74; B29C66/742; B29C66/7428; B29C66/74283; B29K; B29K2021/00; B29K2023/00; B29K2023/10; B29K2023/12; B29K2025/00; B29K2027/00; B29K2027/06; B29K2069/00; B29K2305/00; B29K2305/08; B29K2305/12; B29L; B29L2031/00; B29L2031/753; B29L2031/7546; B29L2031/7548; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49945; Y10T29/53; Y10T29/53313; Y10T29/53322; Y10T29/53339; Y10T29/53383; Y10T29/53396
Claims Analysis
Total Claims: 127
Claim 1
Independent Claim
103 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the needle located in the bore and the surface of the bore and wherein the hub bore is substantially free of an adhesive.
Claim 2
Dependent Claim
103 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the needle located in the bore and the surface of the bore and wherein the hub bore is substantially free of an adhesive.
Claim 3
Dependent Claim
20 words
The device of claim 1 , wherein the roughened exterior surface extends substantially completely around a circumference of the needle.
Claim 4
Dependent Claim
29 words
The device of claim 2 , wherein the bore has a length and the length of the bore is substantially the same as the length of the roughened portion.
Claim 5
Dependent Claim
37 words
The device of claim 1 , wherein the roughened portion has a length and the needle a total length and the length of the roughened portion is from about 25 to about 50% of the total length.
Claim 6
Dependent Claim
33 words
The device of claim 1 , wherein the hub is formed from an elastic material such that the central bore expands elastically when the roughened portion engages the wall of the central bore.
Claim 7
Dependent Claim
32 words
The device of claim 1 , wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 8
Dependent Claim
28 words
The device of claim 1 , wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi.
Claim 9
Dependent Claim
24 words
The device of claim 1 , wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 10
Dependent Claim
31 words
The device of claim 1 , wherein the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the needle.
Claim 11
Dependent Claim
27 words
The device of claim 1 , wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 12
Dependent Claim
27 words
The device of claim 1 , wherein a length of an interface between the hub bore and roughened portion ranges from about 5 to about 50 mm.
Claim 13
Dependent Claim
21 words
The device of claim 1 , wherein a length of the roughened portion ranges from about 5 to about 50 mm.
Claim 14
Dependent Claim
22 words
The device of claim 1 , wherein the roughened portion has a length that ranges from about 5 to about 50 mm.
Claim 15
Dependent Claim
37 words
The device of claim 1 , wherein the hub member possesses a plurality of ribs, said plurality of ribs extending from said hub bore such that said plurality of ribs lessen lateral forces applied to said needle.
Claim 16
Dependent Claim
71 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore is substantially free of adhesive.
Claim 17
Dependent Claim
71 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore is substantially free of adhesive.
Claim 18
Dependent Claim
37 words
A medical device according to claim 15 , wherein the bore has a radius such that an interference fit exists between the exterior surface of the needle located in the bore and the surface of the bore.
Claim 19
Dependent Claim
20 words
The device of claim 15 , wherein the roughened exterior surface extends substantially completely around a circumference of the needle.
Claim 20
Dependent Claim
37 words
The device of claim 15 , wherein the roughened portion has a length and the needle a total length and the length of the roughened portion is from about 25 to about 50% of the total length.
Claim 21
Dependent Claim
33 words
The device of claim 15 , wherein the hub is formed from an elastic material such that the central bore expands elastically when the roughened portion engages the wall of the central bore.
Claim 22
Dependent Claim
32 words
The device of claim 15 , wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 23
Dependent Claim
28 words
The device of claim 15 , wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi.
Claim 24
Dependent Claim
24 words
The device of claim 15 , wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 25
Dependent Claim
30 words
The device of claim 15 , the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the needle.
Claim 26
Dependent Claim
27 words
The device of claim 15 , wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 27
Dependent Claim
27 words
The device of claim 15 , wherein a length of an interface between the hub bore and roughened portion ranges from about 5 to about 50 mm.
Claim 28
Dependent Claim
21 words
The device of claim 15 , wherein a length of the roughened portion ranges from about 5 to about 50 mm.
Claim 29
Dependent Claim
22 words
The device of claim 15 , wherein the roughened portion has a length that ranges from about 5 to about 50 mm.
Claim 30
Dependent Claim
29 words
The device of claim 15 , wherein the bore has a length and the length of the bore is substantially the same as the length of the roughened portion.
Claim 31
Dependent Claim
37 words
The device of claim 15 , wherein the hub member possess a plurality of ribs, said plurality of ribs extending from said hub bore such that said plurality of ribs lessen lateral forces applied to said needle.
Claim 32
Dependent Claim
118 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore and wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 33
Dependent Claim
118 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore and wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 34
Dependent Claim
28 words
The device of claim 30 , wherein the roughened exterior surface extends substantially completely around a circumference of the cannula and wherein the cannula is a hypodermic needle.
Claim 35
Dependent Claim
37 words
The device of claim 30 , wherein the roughened portion has a length and the cannula a total length and the length of the roughened portion is from about 25 to about 50% of the total length.
Claim 36
Dependent Claim
33 words
The device of claim 30 , wherein the hub is formed from an elastic material such that the central bore expands elastically when the roughened portion engages the wall of the central bore.
Claim 37
Dependent Claim
28 words
The device of claim 30 , wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi.
Claim 38
Dependent Claim
24 words
The device of claim 30 , wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 39
Dependent Claim
31 words
The device of claim 30 , wherein the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the cannula.
Claim 40
Dependent Claim
27 words
The device of claim 30 , wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 41
Dependent Claim
27 words
The device of claim 30 , wherein a length of an interface between the hub bore and roughened portion ranges from about 5 to about 50 mm.
Claim 42
Dependent Claim
16 words
The device of claim 30 , wherein the hub bore is substantially free of an adhesive.
Claim 43
Dependent Claim
124 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore, wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi, and wherein the hub bore is substantially free of an adhesive.
Claim 44
Dependent Claim
124 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore, wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi, and wherein the hub bore is substantially free of an adhesive.
Claim 45
Dependent Claim
28 words
The device of claim 40 , wherein the roughened exterior surface extends substantially completely around a circumference of the cannula and wherein the cannula is a hypodermic needle.
Claim 46
Dependent Claim
37 words
The device of claim 40 , wherein the roughened portion has a length and the cannula a total length and the length of the roughened portion is from about 25 to about 50% of the total length.
Claim 47
Dependent Claim
33 words
The device of claim 40 , wherein the hub is formed from an elastic material such that the central bore expands elastically when the roughened portion engages the wall of the central bore.
Claim 48
Dependent Claim
32 words
The device of claim 40 , wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 49
Dependent Claim
24 words
The device of claim 40 , wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 50
Dependent Claim
31 words
The device of claim 40 , wherein the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the cannula.
Claim 51
Dependent Claim
27 words
The device of claim 40 , wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 52
Dependent Claim
27 words
The device of claim 40 , wherein a length of an interface between the hub bore and roughened portion ranges from about 5 to about 50 mm.
Claim 53
Dependent Claim
110 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore and wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 54
Dependent Claim
110 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore and wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 55
Dependent Claim
28 words
The device of claim 49 , wherein the roughened exterior surface extends substantially completely around a circumference of the cannula and wherein the cannula is a hypodermic needle.
Claim 56
Dependent Claim
37 words
The device of claim 49 , wherein the roughened portion has a length and the cannula a total length and the length of the roughened portion is from about 25 to about 50% of the total length.
Claim 57
Dependent Claim
33 words
The device of claim 49 , wherein the hub is formed from an elastic material such that the central bore expands elastically when the roughened portion engages the wall of the central bore.
Claim 58
Dependent Claim
32 words
The device of claim 49 , wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 59
Dependent Claim
28 words
The device of claim 49 , wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi.
Claim 60
Dependent Claim
30 words
The device of claim 49 , the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the cannula.
Claim 61
Dependent Claim
27 words
The device of claim 49 , wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 62
Dependent Claim
27 words
The device of claim 49 , wherein a length of an interface between the hub bore and roughened portion ranges from about 5 to about 50 mm.
Claim 63
Dependent Claim
16 words
The device of claim 49 , wherein the hub bore is substantially free of an adhesive.
Claim 64
Dependent Claim
123 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore, wherein the cannula is hypodermic needle, and wherein the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the cannula.
Claim 65
Dependent Claim
123 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore, wherein the cannula is hypodermic needle, and wherein the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the cannula.
Claim 66
Dependent Claim
19 words
The device claim 59 , wherein the roughened exterior surface extends substantially completely around a circumference of the cannula.
Claim 67
Dependent Claim
37 words
The device of claim 59 , wherein the roughened portion has a length and the cannula a total length and the length of the roughened portion is from about 25 to about 50% of the total length.
Claim 68
Dependent Claim
33 words
The device of claim 59 , wherein the hub is formed from an elastic material such that the central bore expands elastically when the roughened portion engages the wall of the central bore.
Claim 69
Dependent Claim
32 words
The device of claim 59 , wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 70
Dependent Claim
28 words
The device of claim 59 , wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi.
Claim 71
Dependent Claim
24 words
The device of claim 59 , wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 72
Dependent Claim
27 words
The device of claim 59 , wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 73
Dependent Claim
27 words
The device of claim 59 , wherein a length of an interface between the hub bore and roughened portion ranges from about 5 to about 50 mm.
Claim 74
Dependent Claim
16 words
The device of claim 59 , wherein the hub bore is substantially free of an adhesive.
Claim 75
Dependent Claim
36 words
The device of claim 59 , the hub member possesses a plurality of ribs, said plurality of ribs extending from said hub bore such that said plurality of ribs lessen lateral forces applied to said needle.
Claim 76
Dependent Claim
97 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore is substantially free of adhesive and wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 77
Dependent Claim
97 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore is substantially free of adhesive and wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 78
Dependent Claim
45 words
A medical device according to claim 70 , wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore and wherein the cannula is a hypodermic needle.
Claim 79
Dependent Claim
27 words
The device of claim 70 , wherein the roughened exterior surface extends substantially completely around a circumference of the cannula and wherein the cannula is a needle.
Claim 80
Dependent Claim
37 words
The device of claim 70 , wherein the roughened portion has a length and the cannula a total length and the length of the roughened portion is from about 25 to about 50% of the total length.
Claim 81
Dependent Claim
33 words
The device of claim 70 , wherein the hub is formed from an elastic material such that the central bore expands elastically when the roughened portion engages the wall of the central bore.
Claim 82
Dependent Claim
28 words
The device of claim 70 , wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi.
Claim 83
Dependent Claim
24 words
The device of claim 70 , wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 84
Dependent Claim
31 words
The device of claim 70 , wherein the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the cannula.
Claim 85
Dependent Claim
27 words
The device of claim 70 , wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 86
Dependent Claim
27 words
The device of claim 70 , wherein a length of an interface between the hub bore and roughened portion ranges from about 5 to about 50 mm.
Claim 87
Dependent Claim
93 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore is substantially free of adhesive and wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi.
Claim 88
Dependent Claim
93 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore is substantially free of adhesive and wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi.
Claim 89
Dependent Claim
45 words
A medical device according to claim 80 , wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore and wherein the cannula is a hypodermic needle.
Claim 90
Dependent Claim
27 words
The device of claim 80 , wherein the roughened exterior surface extends substantially completely around a circumference of the cannula and wherein the cannula is a needle.
Claim 91
Dependent Claim
37 words
The device of claim 80 , wherein the roughened portion has a length and the cannula a total length and the length of the roughened portion is from about 25 to about 50% of the total length.
Claim 92
Dependent Claim
33 words
The device of claim 80 , wherein the hub is formed from an elastic material such that the central bore expands elastically when the roughened portion engages the wall of the central bore.
Claim 93
Dependent Claim
32 words
The device of claim 80 , wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 94
Dependent Claim
24 words
The device of claim 80 , wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 95
Dependent Claim
31 words
The device of claim 80 , wherein the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the cannula.
Claim 96
Dependent Claim
27 words
The device of claim 80 , wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 97
Dependent Claim
27 words
The device of claim 80 , wherein a length of an interface between the hub bore and roughened portion ranges from about 5 to about 50 mm.
Claim 98
Dependent Claim
89 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore is substantially free of adhesive and wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 99
Dependent Claim
89 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore is substantially free of adhesive and wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 100
Dependent Claim
45 words
A medical device according to claim 90 , wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore and wherein the cannula is a hypodermic needle.
Claim 101
Dependent Claim
27 words
The device of claim 90 , wherein the roughened exterior surface extends substantially completely around a circumference of the cannula and wherein the cannula is a needle.
Claim 102
Dependent Claim
37 words
The device of claim 90 , wherein the roughened portion has a length and the cannula a total length and the length of the roughened portion is from about 25 to about 50% of the total length.
Claim 103
Dependent Claim
33 words
The device of claim 90 , wherein the hub is formed from an elastic material such that the central bore expands elastically when the roughened portion engage the wall of the central bore.
Claim 104
Dependent Claim
32 words
The device of claim 90 , wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 105
Dependent Claim
28 words
The device of claim 90 , wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi.
Claim 106
Dependent Claim
31 words
The device of claim 90 , wherein the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the cannula.
Claim 107
Dependent Claim
27 words
The device of claim 90 , wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 108
Dependent Claim
27 words
The device of claim 90 , wherein a length of an interface between the hub bore and roughened portion ranges from about 5 to about 50 mm.
Claim 109
Dependent Claim
103 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore is substantially free of adhesive, wherein the cannula is a hypodermic needle, and wherein the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the cannula.
Claim 110
Dependent Claim
103 words
A medical device, comprising: (a) a cannula having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the cannula being received in the bore, wherein the bore is substantially free of adhesive, wherein the cannula is a hypodermic needle, and wherein the radius of the hub bore is from about 100 to about 125% of the radius of the substantially smooth portion of the cannula.
Claim 111
Dependent Claim
37 words
A medical device according to claim 100 , wherein the bore has a radius such that an interference fit exists between the exterior surface of the cannula located in the bore and the surface of the bore.
Claim 112
Dependent Claim
20 words
The device of claim 100 , wherein the roughened exterior surface extends substantially completely around a circumference of the cannula.
Claim 113
Dependent Claim
37 words
The device of claim 100 , wherein the roughened portion has a length and the cannula a total length and the length of the roughened portion is from about 25 to about 50% of the total length.
Claim 114
Dependent Claim
33 words
The device of claim 100 , wherein the hub is formed from an elastic material such that the central bore expands elastically when the roughened portion engages the wall of the central bore.
Claim 115
Dependent Claim
32 words
The device of claim 100 , wherein the roughened portion has a radius and the radius is from about 2.5 to about 30% more than the radius of the substantially smooth portion.
Claim 116
Dependent Claim
28 words
The device of claim 100 , wherein the hub member is formed from a material having a flex modulus ranging from about 200,000 psi to about 500,000 psi.
Claim 117
Dependent Claim
24 words
The device of claim 100 , wherein the radius of the hub bore is from about 75 to about 99% of the second radius.
Claim 118
Dependent Claim
27 words
The device of claim 100 , wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 119
Dependent Claim
27 words
The device of claim 100 , wherein a length of an interface between the hub bore and roughened portion ranges from about 5 to about 50 mm.
Claim 120
Dependent Claim
113 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the needle located in the bore and the surface of the bore wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 121
Dependent Claim
113 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the needle located in the bore and the surface of the bore wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 122
Dependent Claim
123 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the needle located in the bore and the surface of the bore, wherein the hub member possesses a plurality of ribs, said plurality of ribs extending from said hub bore such that said plurality of ribs lessen lateral forces applied to said needle.
Claim 123
Dependent Claim
123 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore has a radius such that an interference fit exists between the exterior surface of the needle located in the bore and the surface of the bore, wherein the hub member possesses a plurality of ribs, said plurality of ribs extending from said hub bore such that said plurality of ribs lessen lateral forces applied to said needle.
Claim 124
Dependent Claim
92 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore is substantially free of adhesive, wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 125
Dependent Claim
92 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore is substantially free of adhesive, wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore.
Claim 126
Dependent Claim
123 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore is substantially free of adhesive, wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore, wherein the hub member possess a plurality of ribs, said plurality of ribs extending from said hub bore such that said plurality of ribs lessen lateral forces applied to said needle.
Claim 127
Dependent Claim
123 words
A medical device, comprising: (a) a hypodermic needle having an exterior surface, with a roughened portion of the exterior surface being roughened and having a radius and a substantially smooth portion of the exterior surface being substantially smooth and having a radius; and (b) a hub member having a bore, at least the roughened portion of the needle being received in the bore, wherein the bore is substantially free of adhesive, wherein the radius of the roughened portion is at least about 0.0001 inches more than the radius of the hub bore, wherein the hub member possess a plurality of ribs, said plurality of ribs extending from said hub bore such that said plurality of ribs lessen lateral forces applied to said needle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-03-23 | 2007-09-22 | 2008-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-03-23 | 2011-09-22 | 2012-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-03-23 | 2015-09-22 | 2016-03-23 | $7700.00 | Window Closed / Lapsed |