Patent US4743265A successfully refreshed from Google Patents.
US4743265A
Expired / Lapsed
US
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Articulated catheter placement device
Assignee: DIJ CATHETER CORP
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Filing: 1986-04-23
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Granted: 1988-05-10
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Expires: 2006-04-23
Abstract
Abstract A device for placing a catheter in a patient comprises a splittable hollow needle having a bifurcated proximal end and a pair of handles, each having a body portion and an extension, which are attached to a respective bifurcation of the hollow needle. With each handle attached to a respective bifurcation, the body portions of the handles are juxtaposed and the catheter is slidably received within the hollow needle. A squeezing together of the extensions will cause the body portions to separate and spread the bifurcations to split the needle. The splitting of the needle permits disjoining the needle from the catheter.
Inventors
- 👤 Craig M. Whitehouse
- 👤 Allan Burt
- 👤 Clement M. Catalano, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:48
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0612
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
167 words
A catheter placement device which comprises: a splittable hollow needle adapted to slidably receive a portion of said catheter therein and having a proximal end formed with a first bifurcation and a second bifurcation; a first handle having a body portion, a first end attached to said first bifurcation and a second end formed as an extension from said body portion; a second handle having a body portion, a first end attached to said second bifurcation and a second end formed as an extension from said body portion; and means to support said first and second handles for movment between an engaged position wherein said respective body portions are juxtaposed to present said respective extensions in a flared relationship, and a disengaged position wherein said respective extensions are juxtaposed to separate said first ends of said respective body portions into a flared relationship to distance said respective first ends and their attached bifurcations from each other to split said needle and disjoin said needle from said catheter.
Claim 2
Dependent Claim
167 words
A catheter placement device which comprises: a splittable hollow needle adapted to slidably receive a portion of said catheter therein and having a proximal end formed with a first bifurcation and a second bifurcation; a first handle having a body portion, a first end attached to said first bifurcation and a second end formed as an extension from said body portion; a second handle having a body portion, a first end attached to said second bifurcation and a second end formed as an extension from said body portion; and means to support said first and second handles for movment between an engaged position wherein said respective body portions are juxtaposed to present said respective extensions in a flared relationship, and a disengaged position wherein said respective extensions are juxtaposed to separate said first ends of said respective body portions into a flared relationship to distance said respective first ends and their attached bifurcations from each other to split said needle and disjoin said needle from said catheter.
Claim 3
Dependent Claim
24 words
A catheter placement device as recited in claim 1 wherein said support means comprises a hinge connecting said first handle with said second handle.
Claim 4
Dependent Claim
21 words
A catheter placement device as recited in claim 2 wherein said hinge integrally connects said first handle with said second handle.
Claim 5
Dependent Claim
58 words
A catheter placement device as recited in claim 1 further comprising: a base member formed with a housing having a channel therethrough for fixedly holding a portion of said catheter therein; and an arch set on said base member to hold the proximal end of said needle adjacent said bifurcations and longitudinally align said needle with said channel.
Claim 6
Dependent Claim
27 words
A catheter placement device as recited in claim 4 wherein said arch is spaced from said housing to form an opening through which said bifurcations are extended.
Claim 7
Dependent Claim
50 words
A catheter placement device as recited in claim 4 wherein said arch is spaced from said housing and said device further comprising: a bridge connecting said arch with said housing to form a first and a second side opening through which said first and said second bifurcations are respectively extended.
Claim 8
Dependent Claim
35 words
A catheter placement device as recited in claim 6 wherein said first handle and said second handle are formed with recesses for mating engagement with said housing when said handles are in the engaged position.
Claim 9
Dependent Claim
21 words
A catheter placement device as recited in claim 7 wherein said extensions are formed with flat surfaces for juxtaposed relationship therebetween.
Claim 10
Dependent Claim
89 words
A catheter placement device as recited in claim 1 wherein said first handle is formed with an intermediate flat between its said body portion and its said angled extension and said second handle is formed with an intermediate flat between its said body portion and its said angled extension to permit movement from said engaged position to a partially engaged position wherein said respective intermediate flats are juxtaposed while said respective body portions and said angled extensions are separated, and to further permit subsequent movement to said disengaged position.
Claim 11
Dependent Claim
24 words
A catheter placement device as recited in claim 9 wherein said support means comprises a hinge connecting said first handle with said second handle.
Claim 12
Dependent Claim
58 words
A catheter placement device as recited in claim 10 further comprising: a base member formed with a housing having a channel therethrough for fixedly holding a portion of said catheter therein; and an arch set on said base member to hold the proximal end of said needle adjacent said bifurcations and longitudinally align said needle with said channel.
Claim 13
Dependent Claim
27 words
A catheter placement device as recited in claim 11 wherein said arch is spaced from said housing to form an opening through which said bifurcations are extended.
Claim 14
Dependent Claim
50 words
A catheter placement device as recited in claim 12 wherein said arch is spaced from said housing and said device further comprises: a bridge connecting said arch with said housing to form a first and a second side opening through which said first and said second bifurcations are respectively extended.
Claim 15
Dependent Claim
49 words
A catheter placement device as recited in claim 13 wherein said first handle is formed with a tongue and said second handle is formed with a groove for mating engagement with said tongue of said first handle at the interface of juxtaposed portions of said first and second handles.
Claim 16
Dependent Claim
14 words
A catheter placement device as recited in claim 1 wherein said extensions are arcuate.
Claim 17
Dependent Claim
165 words
A catheter placement device comprising: a splittable hollow needle for receiving a portion of said catheter therein, said needle having a pointed distal end and a proximal end divided to define a first bifurcation and a second bifurcation; a pair of handles, each of said handles having a first end and a second end, said handles juxtaposed for touching engagement and moveable between a first position wherein said respective first ends are adjacent each other and said second ends are separated, and a second position wherein said first ends are spread into a flared relationship by urging together said second ends; and means to fixedly attach one of said bifurcations to said first end of one of said handles and to attach the other of said bifurcations to said first end of the other of said handles for spreading said bifurcations to split said needle and disjoin said needle from said catheter upon movement of said handles from said first position to said second position.
Claim 18
Dependent Claim
165 words
A catheter placement device comprising: a splittable hollow needle for receiving a portion of said catheter therein, said needle having a pointed distal end and a proximal end divided to define a first bifurcation and a second bifurcation; a pair of handles, each of said handles having a first end and a second end, said handles juxtaposed for touching engagement and moveable between a first position wherein said respective first ends are adjacent each other and said second ends are separated, and a second position wherein said first ends are spread into a flared relationship by urging together said second ends; and means to fixedly attach one of said bifurcations to said first end of one of said handles and to attach the other of said bifurcations to said first end of the other of said handles for spreading said bifurcations to split said needle and disjoin said needle from said catheter upon movement of said handles from said first position to said second position.
Claim 19
Dependent Claim
45 words
A catheter placement device as recited in claim 16 further comprising: a base member formed with a housing having a channel therethrough with said needle disposed on said base to establish an extended passageway through said channel and said needle for receiving said catheter therein.
Claim 20
Dependent Claim
36 words
A catheter placement device as recited in claim 17 further comprising: an arch set on said base member to hold the proximal end of said needle adjacent said bifurcations, said arch being spaced from said housing.
Claim 21
Dependent Claim
35 words
A catheter placement device as recited in claim 18 further comprising: a bridge connecting said arch with said housing to form a first and a second side opening through which said bifurcations are respectively extended.
Claim 22
Dependent Claim
45 words
A catheter placement device as recited in claim 19 wherein one of said handles is formed with a groove and the other of said handles is formed with a tongue for mating engagement with said groove at the interface of juxtaposed portions of said handles.
Claim 23
Independent Claim
197 words
A method for placing a catheter into a patient comprising the steps of: A. Providing rigidity for said catheter with a device comprising: a splittable hollow needle adapted to slidably receive a portion of said catheter therein and having a proximal end divided to establish a first bifurcation and a second bifurcation; a first handle having a body portion, a first end attached to said first bifurcation and a second end formed as an extension from said body portion; a second handle having a body portion, a first end attached to said second bifurcation and a second end formed as an extension from said body portion; and means to support said first and second handles for movement between an engaged position wherein said respective body portions are juxtaposed to present said respective extensions in a flared relationship, and a disengaged position wherein said respective extensions are juxtaposed to separate said respective body portions into a flared relationship and distance said respective first ends and their attached bifurcations from each other to split said needle and disjoin said needle from said catheter; B. Inserting said needles into said patient; and C. Manipulating said device into said disengaged position.
Claim 24
Independent Claim
197 words
A method for placing a catheter into a patient comprising the steps of: A. Providing rigidity for said catheter with a device comprising: a splittable hollow needle adapted to slidably receive a portion of said catheter therein and having a proximal end divided to establish a first bifurcation and a second bifurcation; a first handle having a body portion, a first end attached to said first bifurcation and a second end formed as an extension from said body portion; a second handle having a body portion, a first end attached to said second bifurcation and a second end formed as an extension from said body portion; and means to support said first and second handles for movement between an engaged position wherein said respective body portions are juxtaposed to present said respective extensions in a flared relationship, and a disengaged position wherein said respective extensions are juxtaposed to separate said respective body portions into a flared relationship and distance said respective first ends and their attached bifurcations from each other to split said needle and disjoin said needle from said catheter; B. Inserting said needles into said patient; and C. Manipulating said device into said disengaged position.
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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) | 1991-05-10 | 1991-11-09 | 1992-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-10 | 1995-11-09 | 1996-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-10 | 1999-11-09 | 2000-05-10 | $7700.00 | Window Closed / Lapsed |