EP0174577A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Catheter introducing instrument
Assignee: Terumo Corp
•
Filing: 1985-09-02
•
Granted: —
•
Expires: 2005-09-02
Abstract
Abstract A catheter introducer includes a hollow sheath extending continuously from a base end portion thereof to a distal end portion thereof, and a hollow hub having a connection portion for connecting the hub to the sheath in such a manner that the hub and sheath partially overlap. A reinforcing coil body is fitted in the connection portion and extends axially of the sheath from the connection portion toward the distal end of the sheath to a point beyond the connection portion. The hub has a valve for enabling a catheter to be passed therethrough under liquid-tight conditions.
Inventors
- 👤 Atsushi Matsumoto
- 👤 Tatsuo Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 14:14
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0662; A61M2025/0098
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
81 words
A catheter introducer comprising: a hollow sheath extending continuously from a base end portion thereof to a distal end portion thereof; a hollow hub having a connection portion for connecting said hub to said sheath in such a manner that said hub and said sheath partially overlap; and a coil body fitted in the connection portion, said coil body extending axially of said sheath from the connection portion to a portion of said sheath in the proximity of the connection portion.
Claim 2
Dependent Claim
81 words
A catheter introducer comprising: a hollow sheath extending continuously from a base end portion thereof to a distal end portion thereof; a hollow hub having a connection portion for connecting said hub to said sheath in such a manner that said hub and said sheath partially overlap; and a coil body fitted in the connection portion, said coil body extending axially of said sheath from the connection portion to a portion of said sheath in the proximity of the connection portion.
Claim 3
Dependent Claim
44 words
The catheter introducer according to claim 1, wherein said coil body, which covers a region of the connection between said hub and said sheath, extends beyond the region of the connection to a portion of said sheath in the proximity of the connection region.
Claim 4
Dependent Claim
31 words
The catheter introducer according to claim 1, wherein the connection portion of said hub has an opening into which said sheath is inserted, thereby connecting said sheath and said hub together.
Claim 5
Dependent Claim
61 words
The catheter introducer according to claim 2, further comprising fixing means for fixing the base end portion of said sheath, which is inserted into the connection portion, to said hub, an end portion of said coil body on the side of said hub being situated between an inner surface portion of said hub and an outer surface portion of said sheath.
Claim 6
Dependent Claim
73 words
The catheter introducer according to claim 4, wherein the opening in the connection portion has a tapered configuration that widens toward a distal end of the connection portion, said opening of the tapered configuration defining an annular space that keeps the inner surface portion of said hub out of contact with said coil body, which is situated between the inner surface portion of said hub and said outer surface portion of said sheath.
Claim 7
Dependent Claim
31 words
The catheter introducer according to claim 1, wherein said sheath and said hub are connected by fitting said sheath over an outer surface portion of the connection portion of said hub.
Claim 8
Dependent Claim
53 words
The catheter introducer according to claim 1, further comprising fixing means for fixing the base end portion of said sheath, which is covered by the connection portion, to said hub, an end portion of said coil body on the side of said hub being situated on an outer surface portion of said hub.
Claim 9
Dependent Claim
42 words
The catheter introducer according to claim 7, wherein the end portion of said coil body on the side of said hub is situated on a part of an outer surface portion of said sheath covering the outer surface portion of said hub.
Claim 10
Dependent Claim
43 words
The catheter introducer according to claim 1, wherein said coil body has a portion which contacts said sheath, said portion of the coil body having a maximum inner diameter which is no more than about 1.1 times the outer diameter of said sheath.
Claim 11
Dependent Claim
37 words
The catheter introducer according to claim 9, wherein the portion of said coil body that contacts said sheath has a minimum inner diameter which is approximately equal to that of the outer diameter of said sheath. -
Claim 12
Dependent Claim
17 words
The catheter introducer according to claim 1, wherein said coil body is covered with a heat-shrinkable tube.
Claim 13
Dependent Claim
17 words
The catheter introducer according to claim 1, wherein said coil body is covered with an elastic tube.
Claim 14
Dependent Claim
29 words
The catheter introducer according to claim 1, wherein said hub has a side wall formed to include a medical fluid infusion port communicating with the interior of said hub.
Claim 15
Dependent Claim
99 words
A catheter introducer comprising: a hollow sheath extending continuously from a base end portion thereof to a distal end portion thereof; a hollow hub having a connection portion for connecting said hub to said sheath in such a manner that said hub and said sheath partially overlap; a valve body provided in the hub for enabling a catheter to be passed therethrough under liquid-tight conditions; and a coil body fitted in the connection portion, said coil body extending axially of said sheath from the connection portion to a portion of said sheath in the proximity of the connection portion.
Claim 16
Dependent Claim
99 words
A catheter introducer comprising: a hollow sheath extending continuously from a base end portion thereof to a distal end portion thereof; a hollow hub having a connection portion for connecting said hub to said sheath in such a manner that said hub and said sheath partially overlap; a valve body provided in the hub for enabling a catheter to be passed therethrough under liquid-tight conditions; and a coil body fitted in the connection portion, said coil body extending axially of said sheath from the connection portion to a portion of said sheath in the proximity of the connection portion.
Claim 17
Dependent Claim
44 words
The catheter introducer according to claim 14, wherein said coil body, which covers a region of the connection between said hub and said sheath, extends beyond the region of the connection to a portion of said sheath in the proximity of the connection region.
Claim 18
Dependent Claim
31 words
The catheter introducer according to claim 14, wherein the connection portion of said hub has an opening into which said sheath is inserted, thereby connecting said sheath and said hub together.
Claim 19
Dependent Claim
62 words
The catheter introducer according to claim 16, - further comprising fixing means for fixing the base end portion of said sheath, which is inserted into the connection portion, to said hub, an end portion of said coil body on the side of said hub being situated between an inner surface portion of said hub and an outer surface portion of said sheath.
Claim 20
Dependent Claim
73 words
The catheter introducer according to claim 17, wherein the opening in the connection portion has a tapered configuration that widens toward a distal end of the connection portion, said opening of the tapered configuration defining an annular space that keeps the inner surface portion of said hub out of contact with said coil body, which is situated between the inner surface portion of said hub and said outer surface portion of said sheath.
Claim 21
Dependent Claim
31 words
The catheter introducer according to claim 14, wherein said sheath and said hub are connected by fitting said sheath over an outer surface portion of the connection portion of said hub.
Claim 22
Dependent Claim
54 words
The catheter introducer according to claim 14, < further comprising fixing means for fixing the base end portion of said sheath, which is covered by the connection portion, to said hub, an end portion of said coil body on the side of said hub being situated on an outer surface portion of said hub.
Claim 23
Dependent Claim
42 words
The catheter introducer according to claim 20, wherein the end portion of said coil body on the side of said hub is situated on a part of an outer surface portion of said sheath covering the outer surface portion of said hub.
Claim 24
Dependent Claim
43 words
The catheter introducer according to claim 14, wherein said coil body has a portion which contacts said sheath, said portion of the coil body having a maximum inner diameter which is no more than about 1.1 times the outer diameter of said sheath.
Claim 25
Dependent Claim
36 words
The catheter introducer according to claim 22, wherein the portion of said coil body that contacts said sheath has a minimum inner diameter which is approximately equal to that of the outer diameter of said sheath.
Claim 26
Dependent Claim
17 words
The catheter introducer according to claim 14, wherein said coil body is covered with a heat-shrinkable tube.
Claim 27
Dependent Claim
17 words
The catheter introducer according to claim 14, wherein said coil body is covered with an elastic tube.
Claim 28
Dependent Claim
29 words
The catheter introducer according to claim 14, wherein said hub has a side wall formed to include a medical fluid infusion port communicating with the interior of said hub.
Claim 29
Dependent Claim
62 words
The catheter introducer according to claim 14, wherein said valve body consists of a flexible, elastic material and has a first end face provided with an elongated first incision and a second end face provided with an elongated second incision, said first and second incisions being formed so as to intersect each other internally of the valve body without passing entirely therethrough.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.