EP0366336A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Through the needle catheter insertion device and technique
Assignee: Ethicon Inc
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Filing: 1989-10-18
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Granted: —
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Expires: 2009-10-18
Abstract
Abstract A through the needle catheter device is described which includes apparatus for threading a catheter (40) into a blood vessel. The apparatus is irreversible during the threading process. The catheter device also includes means (30, 62) for irreversibly withdrawing and splitting the needle (60). A technique is provided for inserting the needle (60), threading the catheter (40), and withdrawing the needle (60) from a patient.
Inventors
- 👤 Robert H. Cameron
- 👤 Robert Doman
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 15:45
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0612; A61M25/0643; A61M25/0631; A61M25/0637
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
59 words
A through the needle catheter device in which a catheter is located within a needle comprising: means for withdrawing the needle from a patient and splitting said needle; and means, cooperating with said aforesaid mean, for preventing relative motion of the needle and distal end of the catheter toward one another as said needle is withdrawn from said patient.
Claim 2
Dependent Claim
59 words
A through the needle catheter device in which a catheter is located within a needle comprising: means for withdrawing the needle from a patient and splitting said needle; and means, cooperating with said aforesaid mean, for preventing relative motion of the needle and distal end of the catheter toward one another as said needle is withdrawn from said patient.
Claim 3
Dependent Claim
46 words
A through the needle catheter device in which a catheter is located within a needle comprising: means for withdrawing and splitting said needle; and means, cooperating with said catheter, for preventing proximal motion of said catheter as said catheter and needle are introduced into the body.
Claim 4
Dependent Claim
46 words
A through the needle catheter device in which a catheter is located within a needle comprising: means for withdrawing and splitting said needle; and means, cooperating with said catheter, for preventing proximal motion of said catheter as said catheter and needle are introduced into the body.
Claim 5
Dependent Claim
48 words
A through the needle catheter device in which a catheter is located within a needle comprising: means for withdrawing and splitting said needle; and a catheter assembly suitable for engagement with said withdrawing and splitting means, and including said catheter, a section of extension tubing and a luer.
Claim 6
Dependent Claim
48 words
A through the needle catheter device in which a catheter is located within a needle comprising: means for withdrawing and splitting said needle; and a catheter assembly suitable for engagement with said withdrawing and splitting means, and including said catheter, a section of extension tubing and a luer.
Claim 7
Dependent Claim
18 words
The device of Claim 3, further comprising a taping wing located at the proximal end of said catheter.
Claim 8
Dependent Claim
54 words
A through the needle catheter device in which a catheter is located within a needle comprising: means for withdrawing and splitting said needle; and a catheter assembly suitable for engagement with said withdrawing and splitting means, and capable of disengaging from said withdrawing and splitting means from the patient-facing side of said catheter device.
Claim 9
Dependent Claim
54 words
A through the needle catheter device in which a catheter is located within a needle comprising: means for withdrawing and splitting said needle; and a catheter assembly suitable for engagement with said withdrawing and splitting means, and capable of disengaging from said withdrawing and splitting means from the patient-facing side of said catheter device.
Claim 10
Dependent Claim
32 words
The device of Claim 5, wherein at least a portion of said withdrawing and splitting means includes means for viewing blood flow into said catheter assembly through said withdrawing and splitting means.
Claim 11
Dependent Claim
44 words
A through the needle catheter device in which a catheter is located within a needle having a distal tip comprising: means for threading the catheter into a blood vessel; and means for irreversibly withdrawing said needle from a blood vessel and splitting the needle.
Claim 12
Dependent Claim
44 words
A through the needle catheter device in which a catheter is located within a needle having a distal tip comprising: means for threading the catheter into a blood vessel; and means for irreversibly withdrawing said needle from a blood vessel and splitting the needle.
Claim 13
Dependent Claim
44 words
The through the needle catheter device of Claim 7 in which said threading means includes a slide arranged to slide said catheter in the distal direction, and in which said withdrawing means includes a slide arranged to slide said needle in the proximal direction.
Claim 14
Dependent Claim
24 words
The through the needle catheter device of Claim 8, wherein aid threading means comprises means for irreversibly threading said catheter in the distal direction.
Claim 15
Independent Claim
51 words
A method for inserting a catheter through a needle and into a blood vessel comprising the steps of: inserting the needle of the catheter into a blood vessel; advancing said catheter through said needle and into said blood vessel; and withdrawing said needle from said blood vessel and splitting said needle.
Claim 16
Independent Claim
51 words
A method for inserting a catheter through a needle and into a blood vessel comprising the steps of: inserting the needle of the catheter into a blood vessel; advancing said catheter through said needle and into said blood vessel; and withdrawing said needle from said blood vessel and splitting said needle.
Claim 17
Dependent Claim
84 words
A through-the-needle catheter device intended for adult applications, comprising: a housing having a distal end; a hollow needle affixed to said housing and extending at least one-quarter inch from the distal end of said housing; a catheter assembly including a catheter cannula arranged to slide through said hollow needle so that the distal end of said catheter cannula extends at least one-eighth inch from the distal end of said needle; and means for withdrawing said hollow needle from a patient and splitting said needle.
Claim 18
Dependent Claim
84 words
A through-the-needle catheter device intended for adult applications, comprising: a housing having a distal end; a hollow needle affixed to said housing and extending at least one-quarter inch from the distal end of said housing; a catheter assembly including a catheter cannula arranged to slide through said hollow needle so that the distal end of said catheter cannula extends at least one-eighth inch from the distal end of said needle; and means for withdrawing said hollow needle from a patient and splitting said needle.
Claim 19
Dependent Claim
42 words
The catheter device of Claim 11, wherein said housing has a body-facing side intended to oppose the body of a patient, and further comprising means for disengaging said catheter assembly from the body-facing side of said housing following withdrawal of said needle.
Claim 20
Dependent Claim
23 words
The catheter device of Claim 11, wherein said hollow needle extends approximately five-eighths of an inch from the distal end of said housing.
Claim 21
Dependent Claim
40 words
The catheter device of Claim 13, wherein said catheter cannula is arranged to slide through said hollow needle so that the distal end of said catheter cannula extends approximately three-eighths of an inch from the distal end of said needle.
Claim 22
Dependent Claim
40 words
The catheter device of Claim 11, wherein said catheter cannula is arranged to slide through said hollow needle so that the distal end of said catheter cannula extends approximately three-eighths of an inch from the distal end of said needle.
Claim 23
Dependent Claim
26 words
The catheter device of Claim 14, further comprising means for irreversibly sliding said catheter cannula through said hollow needle and out of the distal end thereof.
Claim 24
Dependent Claim
24 words
The catheter device of Claim 16, further comprising means for irreversibly withdrawing said needle from the body of a patient and splitting said needle.
Claim 25
Dependent Claim
88 words
A through-the-needle catheter device intended for pediatric applications, comprising: a housing having a distal end; a hollow needle affixed to said housing and extending at least three-sixteenths of an inch from the distal end of said housing; a catheter assembly including a catheter cannula arranged to slide through said hollow needle so that the distal end of said catheter cannula extends at least one-sixteenth of an inch from the distal end of said needle; and means for withdrawing said hollow needle from a patient and splitting said needle.
Claim 26
Dependent Claim
88 words
A through-the-needle catheter device intended for pediatric applications, comprising: a housing having a distal end; a hollow needle affixed to said housing and extending at least three-sixteenths of an inch from the distal end of said housing; a catheter assembly including a catheter cannula arranged to slide through said hollow needle so that the distal end of said catheter cannula extends at least one-sixteenth of an inch from the distal end of said needle; and means for withdrawing said hollow needle from a patient and splitting said needle.
Claim 27
Dependent Claim
42 words
The catheter device of Claim 18, wherein said housing has a body-facing side intended to oppose the body of a patient, and further comprising means for disengaging said catheter assembly from the body-facing side of said housing following withdrawal of said needle.
Claim 28
Dependent Claim
21 words
The catheter device of Claim 18, wherein said hollow needle extends approximately one-half inch from the distal end of said housing.
Claim 29
Dependent Claim
40 words
The catheter device of Claim 20, wherein said catheter cannula is arranged to slide through said hollow needle so that the distal end of said catheter cannula extends approximately one-quarter of an inch from the distal end of said needle.
Claim 30
Dependent Claim
40 words
The catheter device of Claim 18, wherein said catheter cannula is arranged to slide through said hollow needle so that the distal end of said catheter cannula extends approximately one-quarter of an inch from the distal end of said needle.
Claim 31
Dependent Claim
26 words
The catheter device of Claim 21, further comprising means for irreversibly sliding said catheter cannula through said hollow needle and out of the distal end thereof.
Claim 32
Dependent Claim
24 words
The catheter device of Claim 23, further comprising means for irreversibly withdrawing said needle from the body of a patient and splitting said needle.
References Cited (Backward Citations)
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