Catheter insertion device

• US 3,995,628 A
• Filed: 04/25/1975
• Issued: 12/07/1976
• Est. Priority Date: 04/25/1975
• Status: Expired due to Term

• Current Assignee: Baxter Travenol Laboratories Incorporated (Baxter International Inc.)
• Original Assignee: Travenol Laboratories, Inc. (Baxter International Inc.)
• Inventors: Center, John L., Bodnar, Bert S., Gula, John A., Thompson, Thomas C., Kling, John Ellis
• Primary Examiner(s): McNeill, G.E.
• Application Number:
  US05/571,496
• Time in Patent Office: 592 Days
• Field of Search: 128/214.4, 132/89, 132/91
• US Class Current: 604/159
• CPC Class Codes: A61M 25/0113 Mechanical advancing means, e.g. catheter dispensers
• CPC Class Codes: A61M 25/065 Guide needles

Abstract

A catheter insertion device utilizing a catheter wound inside a two-piece generally cylindrical dispenser and extending outwardly into a slotted needle secured to an outlet from the dispenser; a stiffener comprising a closely-wound wire helix which surrounds a central straight wire is positioned inside the catheter; the dispenser is composed of two relatively rotatable parts, one a relatively flat base having a slot communicating with the slotted needle, the other a receptacle having an inwardly-facing wall which engages the catheter; the receptacle is releasably and rotatably held to the base by a central spindle extending upwardly from the base member through a hole in the top of the receptacle; a flexible feed guide extends from the base adjacent the dispenser outlet and guides the catheter toward the outlet; the guide is engageable with a stop to positively prevent further rotation of the receptacle at a predetermined point when the proximal end of the catheter nears the outlet; the dispenser spindle is split into yieldable fingers at its outer end and provided with a circumferential detent which engages the receptacle; a cooperating release button positioned atop the spindle may be pressed to urge the fingers of the spindle together and assist in releasing the receptacle from the spindle detent after insertion.

Claims

1. A catheter insertion device comprising:

a catheter dispenser comprised of a base having a catheter outlet and a catheter receptacle including an inwardly-facing wall for receiving a catheter therewithin, the dispenser including means engaging the base and receptacle in rotating relation;

a needle having a pointed distal end and a proximal end secured to the dispenser outlet;

a catheter wound inside the inwardly-facing wall of the receptacle, the catheter extending through the dispenser outlet with its distal portion lying in the needle; and

guide means inside the dispenser engaging a portion of the catheter near the dispenser outlet to guide the catheter downwardly towards the outlet as the receptacle is rotated with respect to the base.

2. The device of claim 1, wherein said needle is a slotted needle.

3. The device of claim 1, wherein the catheter is formed from a silicone elastomer.

4. The device of claim 3, further comprising a stiffener disposed in the catheter comprising a closely wound wire helix.

5. The device of claim 1, further comprising a stop shoulder secured to the receptacle to engage said guide means at a predetermined point in the dispensing of the catheter to positively stop rotation of the receptacle.

6. The device of claim 1, further comprising a top wall on the receptacle having a central aperture, and a spindle integrally formed on the base and extending upwardly from the base and through the receptacle top wall aperture to releasably engage the receptacle and base in rotating relation.

7. The device of claim 6, wherein the upper end of the spindle is split into a plurality of yielding fingers, and further comprising a release button mounted atop the fingers so that the button may be depressed to urge the fingers together.

8. A catheter insertion device comprising:

a catheter dispenser comprised of a base having a catheter outlet and a catheter receptacle including an inwardly-facing wall for receiving a catheter therewithin, the dispenser including means engaging the base and receptacle in rotating relation;

a catheter wound inside the inwardly-facing wall of the receptacle, the catheter extending through the dispenser outlet; and

guide means inside the dispenser engaging a portion of the catheter near the dispenser outlet to guide the catheter downwardly towards the outlet as the receptacle is rotated with respect to the base.

9. A catheter insertion device comprising:

a base having a catheter outlet slot at its periphery;

a generally cylindrical catheter receptacle rotatably engaging the base to form a catheter dispenser;

a catheter wound in a plurality of turns against the cylindrical wall of the receptacle and extending through the outlet; and

an elongate flexible guide secured to the base and extending along a path inside the circumferential wall of the receptacle away from a point adjacent the catheter outlet, such path lying between the turn of the catheter in the receptacle closest to the catheter outlet and the other turns of the catheter in the receptacle.

10. A catheter insertion device comprising:

a base having a catheter outlet slot at its periphery;

a generally cylindrical catheter receptacle rotatably engaging the base to form a catheter dispenser;

a catheter wound in a plurality of turns against the cylindrical wall of the receptacle and extending through the outlet;

an elongate flexible guide secured to the base and extending along a path inside the circumferential wall of the receptacle away from a point adjacent the catheter outlet, such path lying between the turn of the catheter on the receptacle closest to the catheter outlet and the other turns of the catheter in the receptacle; and

a stop shoulder fixed to the receptacle to engage the end of the guide at a predetermined point in the dispensing of the last turn of the catheter to positively stop rotation of the receptacle.

11. A catheter insertion device comprising:

a catheter dispenser having a catheter receptacle formed by an inwardly-facing circumferential wall for receiving a catheter therewithin and having an apertured top wall, a base having a catheter outlet, and means allowing rotation of said receptacle wall with respect to the outlet;

a slotted needle having a pointed distal end and a proximal end secured to the dispenser outlet;

a silicone elastomer catheter in the receptacle wound inside the inwardly-facing wall of the catheter dispenser, the catheter extending through the dispenser outlet with its distal portion lying in the needle;

a stiffener extending through the catheter including a closely-wound wire helix, urging the catheter against the inwardly-facing wall of the catheter dispenser;

a flexible guide member inside the dispenser engaging a portion of the catheter adjacent the catheter outlet to guide the catheter to the outlet as the dispenser wall is rotated;

a stop shoulder positioned in fixed relationship to the circumferential dispenser wall for engaging the guide member to positively stop rotation of the wall at a predetermined point prior to dispensing all of the catheter from the dispenser; and

a spindle secured to the base and extending upwardly from the base through the aperture in the top wall of the receptacle to secure the receptacle and base in rotating relation.

12. The device of claim 11, wherein the guide member is an elongate flexible finger secured at one end to the base near the outlet and having its opposite end unattached to the dispenser and loaded between two adjacent turns of the catheter in the receptacle.

13. A catheter insertion device comprising:

a base having a catheter outlet slot at its periphery;

a generally cylindrical catheter receptacle rotatably engaging the base to form a catheter dispenser;

a needle secured to the catheter outlet; and

a catheter wound in a plurality of turns against the cylindrical wall of the receptacle and extending through the outlet so that its distal end lies in the needle; and

an elongate flexible guide secured to the base and extending along a path inside the circumferential wall of the receptacle away from a point adjacent the catheter outlet, such path lying between the turn of the catheter in the receptacle closest to the catheter outlet and the other turns of the catheter in the receptacle.

14. A catheter insertion device comprising:

a base having a catheter outlet slot at its periphery;

a generally cylindrical catheter receptacle rotatably engaging the base to form a catheter dispenser;

a needle secured to the catheter outlet; and

a catheter wound in a plurality of turns against the cylindrical wall of the receptacle and extending through the outlet so that its distal end lies in the needle;

an elongate flexible guide secured to the base and extending along a path inside the circumferential wall of the receptacle away from a point adjacent the catheter outlet, such path lying between the turn of the catheter on the receptacle closest to the catheter outlet and the other turns of the catheter in the receptacle; and

a stop shoulder fixed to the receptacle to engage the guide at a predetermined point in the dispensing of the last turn of the catheter to positively stop rotation of the receptacle.

15. A catheter insertion device comprising:

a catheter dispenser comprised of at least two separable members including a first member having a slotted catheter outlet and a second member having a catheter receptacle formed by an inwardly-facing wall thereon for receiving a catheter therewithin, the dispenser including means releasably engaging the first and second members in rotating relation;

a slotted needle having a pointed distal end and a proximal end secured to the slotted dispenser outlet with its slot in register with the slot of the dispenser outlet;

a silicone elastomer catheter in the receptacle wound against the inwardly-facing wall of the second dispenser member, the catheter extending through the dispenser outlet with its distal portion lying in the needle;

a stiffener extending through the catheter, urging the catheter against the inwardly-facing wall of the second dispenser member; and

guide means inside the dispenser engaging a portion of the catheter near the outlet to guide the catheter towards the outlet upon relative rotation of the first and second members of the dispenser.

16. The device of claim 15, further comprising a spindle secured integrally to the first member of the dispenser and extending normally thereto, a top wall on the catheter receptacle having an aperture therethrough, said spindle extending through and engaging said aperture to form the means engaging the first and second dispenser members releasably in rotating relation.

17. A catheter insertion device comprising:

a base having a catheter outlet slot at its periphery;

a spindle integral with the base extending from a central portion of the base along an axis perpendicular to the major portion of the base;

a generally cylindrical catheter receptacle having a top wall with a central aperture rotatably engaging the spindle so that the end of the receptacle opposite such top wall rotatably confronts the base and the spindle extends through the top wall; and

a catheter wound inside the cylindrical wall of the receptacle and extending through the outlet so that its distal end lies in the needle, whereby the catheter may be forwarded into the body of a patient by rotation of the receptacle and the receptacle may be subsequently removed from the base with one hand from above the base by digital pressure on the end of the spindle accompanied by an upward pulling force on the cylindrical wall of the receptacle in the direction away from the base.

18. A catheter insertion device comprising:

a base having a catheter outlet slot at its periphery;

a spindle integral with the base extending from a central portion of the base along an axis perpendicular to the major portion of the base;

a generally cylindrical catheter receptacle having a top wall with a central aperture rotatably engaging the spindle so that the end of the receptacle opposite such top wall rotatably confronts the base and the spindle extends through the top wall;

a needle secured to the catheter outlet; and

a catheter wound inside the cylindrical wall of the receptacle and extending through the outlet so that its distal end lies in the needle, whereby the catheter may be forwarded into the body of a patient by rotation of the receptacle and the receptacle may be subsequently removed from the base with one hand from above the base by digital pressure on the end of the spindle accompanied by an upward pulling force on the cylindrical wall of the receptacle in the direction away from the base.

19. A catheter insertion device comprising:

a base having a catheter outlet slot at its periphery;

a spindle integral with the base extending from a central portion of the base along an axis perpendicular to the major portion of the base, and being split at its upper end into a plurality of yieldable fingers having a circumferential detent;

a generally cylindrical catheter receptacle having a top wall with a central aperture rotatably engaging the detent of the spindle so that the end of the receptacle opposite such top wall rotatably confronts the base and the spindle extends through the top wall;

a downwardly movable release button mounted atop the spindle having a canted inner surface for engaging the yieldable fingers; and

a catheter wound inside the cylindrical wall of the receptacle and extending through the outlet, whereby the catheter may be forwarded into the body of a patient by rotation of the receptacle and the receptacle may be subsequently removed from the base with one hand from above the base by digital pressure on the release button accompanied by an upward pulling force on the cylindrical wall of the receptacle in the direction away from the base.

20. A catheter insertion device comprising:

a base having a catheter outlet slot at its periphery;

a spindle integral with the base extending from a central portion of the base along an axis perpendicular to the major portion of the base, and being split at its upper end into a plurality of yieldable fingers having a circumferential detent;

a generally cylindrical catheter receptacle having a top wall with a central aperture rotatably engaging the detent of the spindle so that the end of the receptacle opposite such top wall rotatably confronts the base and the spindle extends through the top wall;

a downwardly movable release button mounted atop the spindle having a canted inner surface for engaging the yieldable fingers;

a needle secured to the catheter outlet; and

a catheter wound inside the cylindrical wall of the receptacle and extending through the outlet, so that its distal end lies in the needle, whereby the catheter may be forwarded into the body of a patient by rotation of the receptacle and the receptacle may be subsequently removed from the base with one hand from above the base by digital pressure on the release button accompanied by an upward pulling force on the cylindrical wall of the receptacle in the direction away from the base.