US4340201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intravenous tubing clamping device
Assignee: Individual
•
Filing: 1979-12-10
•
Granted: 1982-07-20
•
Expires: 1999-12-10
Abstract
Abstract An intravenous tubing clamping device is provided for controlling fluid flow through compressible tubing. The device includes an elongated member having a proximal end and a distal end which is adapted to receive the tubing. The body member has a generally V-shaped longitudinally extending bottom wall having an angle of about 60° to 165° defining two supporting surfaces for the tubing. In one embodiment, the bottoms of the side walls of the body member define ledges on opposite sides of the V-shaped bottom wall. In another embodiment, the body member defines two grooves on opposite sides of the V-shaped bottom wall. A roller is mounted on the body member for movement longitudinally of the body member. The roller has a generally V-shaped circumference having an apex angle centrally located on the roller having a value of about 60° to 180°. The roller also has circumferentially extending grooves extending around both opposite sides of the outer periphery of the roller. With the clamping device, the lumen or orifice formed in the tubing is generally V-shaped and the sides of the tubing are clamped to provide a relatively uniform flow rate.
Inventors
- 👤 Karl E. Becker, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:00
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/22; A61M39/28; A61M39/286
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
376 words
An intravenous tubing clamping device for controlling fluid flow through compressible tubing comprising: an elongated body member adapted to receive said tubing having a proximal end and a distal end; said body member including a generally V-shaped bottom wall defining two planar supporting surfaces for said tubing extending longitudinally of said body member and having a substantially constant width and an apex angle of about 60° to 165°; and a roller mounted on said body member for movement longitudinally of said body member about an axis of rotation extending transversely of said body member for defining a clamping area between said roller and said supporting surfaces which decreases the cross-sectional area of the lumen of the tubing as said roller moves from said proximal end of said body member toward said distal end, said roller defining grooves extending circumferentially around opposite sides of the outer circumference of said roller, said roller grooves defining spaces adapted to receive the sides of a tubing clamped in said clamping area, said roller grooves being defined by (1) walls on said body member extending substantially parallel to said longitudinal roller movement on opposite sides of said roller, (2) first surfaces formed circumferentially on said roller adjacent to and on opposite sides of said clamping area and (3) second surfaces formed circumferentially on said roller substantially perpendicular to said body member walls and each extending substantially parallel to said axis of rotation between a respective first surface and body member wall, said roller grooves cooperating with said body member to clamp the sides of said tubing in a direction transverse of said body member with said tubing being compressively engaged between said body member walls and said first surfaces and said tubing being positively engaged by said second surfaces so that a lumen is defined in a central portion of the tubing through which flows substantially all of the fluid, said roller having a circumference with a generally V-shape with the apex of the V-shape centrally located on the roller and its distal ends merging with said roller grooves, the apex having an angle of about 60° to 180°, the roller cooperating with the planar supporting surfaces of said body member to define a generally V-shaped lumen in the clamped tubing.
Claim 2
Dependent Claim
376 words
An intravenous tubing clamping device for controlling fluid flow through compressible tubing comprising: an elongated body member adapted to receive said tubing having a proximal end and a distal end; said body member including a generally V-shaped bottom wall defining two planar supporting surfaces for said tubing extending longitudinally of said body member and having a substantially constant width and an apex angle of about 60° to 165°; and a roller mounted on said body member for movement longitudinally of said body member about an axis of rotation extending transversely of said body member for defining a clamping area between said roller and said supporting surfaces which decreases the cross-sectional area of the lumen of the tubing as said roller moves from said proximal end of said body member toward said distal end, said roller defining grooves extending circumferentially around opposite sides of the outer circumference of said roller, said roller grooves defining spaces adapted to receive the sides of a tubing clamped in said clamping area, said roller grooves being defined by (1) walls on said body member extending substantially parallel to said longitudinal roller movement on opposite sides of said roller, (2) first surfaces formed circumferentially on said roller adjacent to and on opposite sides of said clamping area and (3) second surfaces formed circumferentially on said roller substantially perpendicular to said body member walls and each extending substantially parallel to said axis of rotation between a respective first surface and body member wall, said roller grooves cooperating with said body member to clamp the sides of said tubing in a direction transverse of said body member with said tubing being compressively engaged between said body member walls and said first surfaces and said tubing being positively engaged by said second surfaces so that a lumen is defined in a central portion of the tubing through which flows substantially all of the fluid, said roller having a circumference with a generally V-shape with the apex of the V-shape centrally located on the roller and its distal ends merging with said roller grooves, the apex having an angle of about 60° to 180°, the roller cooperating with the planar supporting surfaces of said body member to define a generally V-shaped lumen in the clamped tubing.
Claim 3
Dependent Claim
226 words
An intravenous tubing clamping device for controlling fluid flow through compressible tubing comprising: an elongated body member adapted to receive said tubing having a proximal end and a distal end; said body member including a generally V-shaped bottom wall defining two planar supporting surfaces for said tubing extending longitudinally of said body member and having a substantially constant width and an apex angle of about 60° to 165°, said body member further including grooves extending longitudinally on opposite sides of said V-shaped bottom wall, outer edges of said planar supporting surfaces defining top edges of said body member grooves, said body member grooves defining spaces adapted to receive a portion of the sides of a clamped tubing; and a roller mounted on said body member for movement longitudinally of said body member about an axis of rotation extending transversely of said body member for defining a clamping area between said roller and said planar supporting surfaces which decreases the cross-sectional area of a lumen formed in a central region of the clamped tubing as said roller moves from said proximal end of said body member toward said distal end, said roller defining grooves extending circumferentially around opposite sides of the outer circumference of said roller, said roller grooves defining spaces adapted to receive a portion of the sides of a tubing clamped in said clamping area.
Claim 4
Dependent Claim
226 words
An intravenous tubing clamping device for controlling fluid flow through compressible tubing comprising: an elongated body member adapted to receive said tubing having a proximal end and a distal end; said body member including a generally V-shaped bottom wall defining two planar supporting surfaces for said tubing extending longitudinally of said body member and having a substantially constant width and an apex angle of about 60° to 165°, said body member further including grooves extending longitudinally on opposite sides of said V-shaped bottom wall, outer edges of said planar supporting surfaces defining top edges of said body member grooves, said body member grooves defining spaces adapted to receive a portion of the sides of a clamped tubing; and a roller mounted on said body member for movement longitudinally of said body member about an axis of rotation extending transversely of said body member for defining a clamping area between said roller and said planar supporting surfaces which decreases the cross-sectional area of a lumen formed in a central region of the clamped tubing as said roller moves from said proximal end of said body member toward said distal end, said roller defining grooves extending circumferentially around opposite sides of the outer circumference of said roller, said roller grooves defining spaces adapted to receive a portion of the sides of a tubing clamped in said clamping area.
Claim 5
Dependent Claim
34 words
An intravenous tubing clamping device as claimed in claim 2 wherein the depth of said roller grooves and said body member grooves is approximately equal to the uncompressed nominal wall thickness of said tubing.
Claim 6
Dependent Claim
50 words
An intravenous tubing clamping device as claimed in claim 2 wherein the roller has a circumference with a generally V-shape with the apex of the V-shape centrally located on the roller and its distal ends merging with said roller grooves, the apex having an angle of about 60° to 180°.
Claim 7
Dependent Claim
60 words
An intravenous tubing clamping device as claimed in claim 4, wherein the apex angle of the bottom wall of the body member is progressively changed from a value less than the apex angle of the roller to a value approximately equal to the apex angle of the roller by moving the apex of the bottom wall in an upward direction.
Claim 8
Dependent Claim
30 words
An intravenous tubing clamping device as claimed in claim 4, wherein the apex angle of the roller is at least 10° more than the apex angle of the bottom wall.
Claim 9
Dependent Claim
39 words
An intravenous tubing clamping device as claimed in claim 4, wherein said roller has planar roller surfaces cooperating with said planar supporting surfaces of said body member to form a V-shaped lumen in a central portion of clamped tubing.
Claim 10
Dependent Claim
36 words
An intravenous tubing clamping device as claimed in claim 7, wherein said body member grooves and said roller grooves clamp sides of the tubing so that no flow lumens are formed at sides of the tubing.
Claim 11
Dependent Claim
36 words
An intravenous tubing clamping device as claimed in claim 2 wherein the width of said roller grooves and said body member grooves is less than about 2 times the uncompressed nominal wall thickness of said tubing.
Claim 12
Dependent Claim
36 words
An intravenous tubing clamping device as claimed in claim 9 wherein said width of said roller grooves and said body member grooves is about 1.2 to 1.5 times the uncompressed nominal wall thickness of said tubing.
Claim 13
Dependent Claim
67 words
An intravenous tubing clamping device as claimed in claim 2 wherein the distance between the distal ends of said generally V-shaped bottom wall and the outer circumference of said roller adjacent said roller grooves measured along a line substantially perpendicular to said axis of rotation of said roller is about 1.6 to 2.2 times the uncompressed nominal wall thickness of said tubing when said tubing is clamped.
Claim 14
Dependent Claim
25 words
An intravenous tubing clamping device as claimed in claim 11 wherein said distance is about 1.8 times the uncompressed nominal wall thickness of said tubing.
Claim 15
Dependent Claim
50 words
An intravenous tubing clamping device as claimed in claim 2, wherein said roller has axially extending trunnions, and wherein said body member includes means for supporting said trunnions for movement toward the bottom wall as said roller moves from said proximal end of said body member toward said distal end.
Claim 16
Dependent Claim
27 words
An intravenous tubing clamping device as claimed in claim 2, wherein the width of said body member grooves is greater than the width of said roller grooves.
Claim 17
Dependent Claim
31 words
An intravenous tubing clamping device as claimed in claim 2 or 14, wherein the depth of said body member grooves and the depth of said roller grooves are approximately the same.
Claim 18
Dependent Claim
53 words
An intravenous tubing clamping device as claimed in claim 2, wherein said body member grooves and said roller grooves compress both sides of the tubing in a direction substantially parallel to an axis of the roller to thereby minimize a change in flow rate when the tubing is subjected to an abusive tug.
Claim 19
Dependent Claim
50 words
An intravenous tubing clamping device as claimed in claim 1 or 2, wherein said device further comprises guide means on said body member for guiding longitudinal movement of said roller, the distance from the guide means to the bottom wall progressively decreasing toward the distal end of the body member.
Claim 20
Dependent Claim
49 words
An intravenous tubing clamping device as claimed in claim 17, wherein the apex angle of the V-shaped groove in the bottom wall increases over at least a portion of the length of the V-shaped groove in a direction from the proximal to the distal end of the body member.
Claim 21
Dependent Claim
51 words
An intravenous tubing clamping device as claimed in claim 1 or 2, wherein the apex angle of the V-shaped groove in the bottom wall increases over at least a portion of the length of the V-shaped groove in a direction from the proximal to the distal end of the body member.
Claim 22
Dependent Claim
63 words
An intravenous tubing clamping device as claimed in claim 2, wherein the widths of said body member grooves and said roller grooves are less than twice the width of uncompressed tubing so that sides of said tubing are clamped in a direction transverse of said body member to thereby oppose movement of the tubing when the tubing is subjected to an abusive tug.
Claim 23
Dependent Claim
247 words
An intravenous tubing clamping device for controlling fluid flow through compressible tubing comprising: an elongated body member adapted to receive said tubing having a proximal end and a distal end; said body member including a generally V-shaped bottom wall defining two planar supporting surfaces for said tubing extending longitudinally of said body member and having a substantially constant width and an apex angle of about 60° to 165°, the apex angle of the V-shaped bottom wall increasing over at least a portion of the length of the V-shaped bottom wall in a direction from the proximal to the distal end of the body member; and a roller mounted on said body member for movement longitudinally of said body member about an axis of rotation extending transversely of said body member for defining a clamping area between said roller and said supporting surfaces which decreases the cross-sectional area of the lumen of the tubing as said roller moves from said proximal end of said body member toward said distal end, said roller defining grooves extending circumferentially around opposite sides of the outer circumference of said roller, said roller grooves defining spaces adapted to receive the sides of a tubing clamped in said clamping area, said roller grooves cooperating with said body member to clamp the sides of said tubing in a direction transverse of said body member so that a lumen is defined in a central portion of the tubing through which flows substantially all of the fluid.
Claim 24
Dependent Claim
247 words
An intravenous tubing clamping device for controlling fluid flow through compressible tubing comprising: an elongated body member adapted to receive said tubing having a proximal end and a distal end; said body member including a generally V-shaped bottom wall defining two planar supporting surfaces for said tubing extending longitudinally of said body member and having a substantially constant width and an apex angle of about 60° to 165°, the apex angle of the V-shaped bottom wall increasing over at least a portion of the length of the V-shaped bottom wall in a direction from the proximal to the distal end of the body member; and a roller mounted on said body member for movement longitudinally of said body member about an axis of rotation extending transversely of said body member for defining a clamping area between said roller and said supporting surfaces which decreases the cross-sectional area of the lumen of the tubing as said roller moves from said proximal end of said body member toward said distal end, said roller defining grooves extending circumferentially around opposite sides of the outer circumference of said roller, said roller grooves defining spaces adapted to receive the sides of a tubing clamped in said clamping area, said roller grooves cooperating with said body member to clamp the sides of said tubing in a direction transverse of said body member so that a lumen is defined in a central portion of the tubing through which flows substantially all of the fluid.
Claim 25
Dependent Claim
48 words
An intravenous tubing clamping device as claimed in claim 21, wherein said device further comprises guide means on said body member for guiding longitudinal movement of said roller, the distance from the guide means to the bottom wall progressively decreasing toward the distal end of the body member.
Claim 26
Dependent Claim
296 words
An intravenous tubing clamping device for controlling fluid flow through compressible tubing comprising: an elongated body member adapted to receive said tubing having a proximal end and a distal end; said body member including a generally V-shaped bottom wall defining two planar supporting surfaces for said tubing extending longitudinally of said body member and having a substantially constant width and an apex angle of about 60° to 165°, the apex angle of said V-shaped bottom wall being progressively changed from a value less than the apex angle of the roller to a value approximately equal to the apex angle of the roller by moving the apex of the bottom wall in an upward direction, said body member further including grooves extending longitudinally on opposite sides of said V-shaped bottom wall, said body member grooves defining spaces adapted to receive a portion of the sides of a clamped tubing; and a roller mounted on said body member for movement longitudinally of said body member about an axis of rotation extending transversely of said body member for defining a clamping area between said roller and said planar supporting surfaces which decreases the cross-sectional area of a lumen formed in a central region of the clamped tubing as said roller moves from said proximal end of said body member toward said distal end, said roller defining grooves extending circumferentially around opposite sides of the outer circumference of said roller, said roller grooves defining spaces adapted to receive a portion of the sides of a tubing clamped in said clamping area, said roller having a circumference with a generally V-shape with the apex of the V-shape centrally located on the roller and its distal ends merging with said roller grooves, the apex having an angle of about 60° to 180°.
Claim 27
Dependent Claim
296 words
An intravenous tubing clamping device for controlling fluid flow through compressible tubing comprising: an elongated body member adapted to receive said tubing having a proximal end and a distal end; said body member including a generally V-shaped bottom wall defining two planar supporting surfaces for said tubing extending longitudinally of said body member and having a substantially constant width and an apex angle of about 60° to 165°, the apex angle of said V-shaped bottom wall being progressively changed from a value less than the apex angle of the roller to a value approximately equal to the apex angle of the roller by moving the apex of the bottom wall in an upward direction, said body member further including grooves extending longitudinally on opposite sides of said V-shaped bottom wall, said body member grooves defining spaces adapted to receive a portion of the sides of a clamped tubing; and a roller mounted on said body member for movement longitudinally of said body member about an axis of rotation extending transversely of said body member for defining a clamping area between said roller and said planar supporting surfaces which decreases the cross-sectional area of a lumen formed in a central region of the clamped tubing as said roller moves from said proximal end of said body member toward said distal end, said roller defining grooves extending circumferentially around opposite sides of the outer circumference of said roller, said roller grooves defining spaces adapted to receive a portion of the sides of a tubing clamped in said clamping area, said roller having a circumference with a generally V-shape with the apex of the V-shape centrally located on the roller and its distal ends merging with said roller grooves, the apex having an angle of about 60° to 180°.
Claim 28
Dependent Claim
247 words
An intravenous tubing clamping device for controlling fluid flow through compressible tubing comprising: an elongated body member adapted to receive said tubing having a proximal end and a distal end; said body member including a generally V-shaped bottom wall defining two planar supporting surfaces for said tubing extending longitudinally of said body member and having a substantially constant width and an apex angle of about 60° to 165°, the apex angle of said V-shaped bottom wall increasing over at least a portion of the length of the V-shaped bottom wall in a direction from the proximal to the distal end of the body member, said body member further including grooves extending longitudinally on opposite sides of said V-shaped bottom wall, said body member grooves defining spaces adapted to receive a portion of the sides of a clamped tubing; and a roller mounted on said body member for movement longitudinally of said body member about an axis of rotation extending transversely of said body member for defining a clamping area between said roller and said planar supporting surfaces which decreases the cross-sectional area of a lumen formed in a central region of the clamped tubing as said roller moves from said proximal end of said body member toward said distal end, said roller defining grooves extending circumferentially around opposite sides of the outer circumference of said roller, said roller grooves defining spaces adapted to receive a portion of the sides of a tubing clamped in said clamping area.
Claim 29
Dependent Claim
247 words
An intravenous tubing clamping device for controlling fluid flow through compressible tubing comprising: an elongated body member adapted to receive said tubing having a proximal end and a distal end; said body member including a generally V-shaped bottom wall defining two planar supporting surfaces for said tubing extending longitudinally of said body member and having a substantially constant width and an apex angle of about 60° to 165°, the apex angle of said V-shaped bottom wall increasing over at least a portion of the length of the V-shaped bottom wall in a direction from the proximal to the distal end of the body member, said body member further including grooves extending longitudinally on opposite sides of said V-shaped bottom wall, said body member grooves defining spaces adapted to receive a portion of the sides of a clamped tubing; and a roller mounted on said body member for movement longitudinally of said body member about an axis of rotation extending transversely of said body member for defining a clamping area between said roller and said planar supporting surfaces which decreases the cross-sectional area of a lumen formed in a central region of the clamped tubing as said roller moves from said proximal end of said body member toward said distal end, said roller defining grooves extending circumferentially around opposite sides of the outer circumference of said roller, said roller grooves defining spaces adapted to receive a portion of the sides of a tubing clamped in said clamping area.
Claim 30
Dependent Claim
48 words
An intravenous tubing clamping device as claimed in claim 24, wherein said device further comprises guide means on said body member for guiding longitudinal movement of said roller, the distance from the guide means to the bottom wall progressively decreasing toward the distal end of the body member.
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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) | 1985-07-19 | 1986-01-18 | 1986-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-19 | 1990-01-18 | 1990-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-19 | 1994-01-18 | 1994-07-20 | $7700.00 | Window Closed / Lapsed |