Catheter guide wire introducing device and method

• US 6,277,100 B1
• Filed: 07/17/1997
• Issued: 08/21/2001
• Est. Priority Date: 07/17/1997
• Status: Expired due to Term

• Current Assignee: Medical Components, Inc.
• Original Assignee: Medical Components, Inc.
• Inventors: Schweikert, Timothy M., Raulerson, J. Daniel
• Primary Examiner(s): Seidel, Richard K.
• Assistant Examiner(s): Hayes, Michael J
• Application Number:
  US08/896,192
• Time in Patent Office: 1,496 Days
• Field of Search: 604/164, 604/167, 604/168, 604/246, 604/256, 604/264, 604/272, 604/212, 604/217, 604/523, 604/528, 604/900, 604/506, 604/510, 604/533, 604/539, 606/108, 600/581, 128/898
• US Class Current: 604/212
• CPC Class Codes: A61M 25/0693 Flashback chambers

Abstract

A catheter guide wire introducing device for aspiration of a body part and insertion of a guide wire into the body part is provided. The catheter guide wire introducing device includes a flexible bulb. A fitting is located on the first end of the bulb. The fitting includes an internal chamber and first and second axially aligned passageways in fluid communication with the chamber. A third passageway is provided in fluid communication between the chamber and the interior of the cavity of the flexible bulb. An introducer needle having first and second ends and a lumen is provided. The first end of the needle is connected to the fitting such that the first passageway is in fluid communication with the lumen. A conduit having first and second ends and a passageway extending therethrough is also provided. The conduit is axially aligned with the introducer needle. The first end of the conduit is connected to the fitting such that the conduit passageway is in fluid communication with the second passageway. The conduit and the introducer needle are axially aligned. A guide wire penetrable seal assembly is connected to the second end of the conduit in fluid communication with the conduit passageway for preventing the passage of fluid from within the conduit and air from outside the conduit therethrough and for introduction of the guide wire into the conduit.

Claims

1. A catheter guide wire introducing device for aspiration of a body part and insertion of a guide wire into the body part comprising:

a flexible bulb having a first end, a second end and an interior cavity;

a fitting located on the first end of the flexible bulb, the fitting including an internal chamber and first and second axially aligned passageways in fluid communication with the chamber, and a third passageway in fluid communication between the chamber and the interior cavity of the flexible bulb;

an introducer needle having first and second ends and a lumen, the first end of the needle being connected to the fitting such that the first passageway is in fluid communication with the lumen;

a conduit having first and second ends and a passageway extending therethrough, the conduit being axially aligned with the introducer needle, the first end of the conduit being connected to the fitting such that the conduit passageway is in fluid communication with the second passageway; and

a guide wire penetrable seal assembly connected to the second end of the conduit in fluid communication with the conduit passageway for preventing the passage of fluid from within the conduit and air from outside the conduit therethrough, and for introduction of a guide wire into the conduit, wherein the guide wire penetrable seal assembly comprises a seal having a surface and a seal support adjacent to the seal, the seal support having a surface complementary to the surface of the seal such that the surface of the seal and the surface of the seal support are in facing engagement and the seal is capable of aspirating a body part.

2. The device of claim 1 wherein the conduit is located within the flexible bulb and extends from the fitting at the first end of the flexible bulb to the second end of the flexible bulb, a seal support body being located at the second end of the flexible bulb which seals the interior cavity at the second end of the flexible bulb and connects the second end of the conduit to the guide wire penetrable seal assembly.

3. The device of claim 2 wherein the seal has a central raised portion having a depression located at an apex of the raised portion, an angular slit being located in the depression which is generally in alignment with the conduit, and the seal support has a central opening, wherein the seal support body includes a cylindrical recess which receives the seal and the seal support.

4. The device of claim 3 further comprising a cap which holds the seal and the seal support within the cylindrical recess, the cap including a conical recessed opening and an axial bore extending therethrough adapted to direct the guide wire to the slit in the seal.

5. The device of claim 2 wherein the first end of the flexible bulb is affixed to the fitting and the second end of the flexible bulb is bonded to the seal support body.

6. The device of claim 1 wherein the flexible bulb comprises a clear polymeric material.

7. The device of claim 1 wherein the flexible bulb comprises a clear elastomeric material.

8. A catheter guide wire introducing device for aspiration of a body part and insertion of a guide wire into the body part comprising:

a flexible bulb having a first end, a second end and an interior cavity;

a fitting located on the first end of the flexible bulb the fitting including an internal chamber and first and second axially aligned passageways in fluid communication with the chamber, and a third passageway in fluid communication between the chamber and the interior cavity of the flexible bulb, the fitting including a plug having an outer surface seated within an opening defined by an interior wall of the fitting opposite to the first passageway, the second passageway being defined by an axial bore through the plug, and the third passageway extending longitudinally between the plug and the interior wall of the fitting;

an introducer needle having first and second ends and a lumen, the first end of the needle being connected to the fitting such that the first passageway is in fluid communication with the lumen;

a conduit having first and second ends and a passageway extending therethrough the conduit being axially aligned with the introducer needle, the first end of the conduit being connected to the fitting such that the conduit passageway is in fluid communication with the second passageway; and

a guide wire penetrable seal assembly connected to the second end of the conduit in fluid communication with the conduit passageway for preventing the passage of fluid from within the conduit and air from outside the conduit therethrough, and for introduction of a guide wire into the conduit.

9. A catheter guide wire introducing device for aspiration of a body part and insertion of a guide wire into the body part comprising:

a flexible bulb having a first end, a second end and an interior cavity;

a fitting located on the first end of the flexible bulb, the fitting including a chamber;

an introducer needle having first and second ends and a lumen, the first end of the needle being connected to the fitting such that the lumen is in fluid communication with the chamber;

a conduit having first and second ends and a passageway extending therethrough, the conduit being axially aligned with the introducer needle, the first end of the conduit being connected to the fitting such that the conduit passageway is in fluid communication with the chamber; and

a guide wire penetrable seal assembly connected to the second end of the conduit in fluid communication with the conduit passageway for preventing the passage of fluid from within the conduit and air from outside the conduit therethrough, and for introduction of a guide wire into the conduit, wherein the guidewire penetrable seal assembly comprises a seal having a surface and a seal support adjacent to the seal, the seal support having a surface in facing engagement with the surface of the seal and being capable of aspirating a body part.

10. The device of claim 9 wherein the conduit is located within the flexible bulb and extends from the fitting at the first end of the flexible bulb to the second end of the flexible bulb, a seal support body being located at the second end of the flexible bulb which seals the interior cavity at the second end of the flexible bulb and connects the second end of the conduit to the guide wire penetrable seal assembly.

11. The device of claim 9 wherein the guide wire penetrable seal assembly comprises a seal with a central raised portion having a depression located at an apex of the raised portion, an angular slit being located in the depression which is generally in alignment with the conduit, a seal support being located adjacent to the raised portion and having a complementary surface to the seal and a central opening, wherein the seal support body includes a cylindrical recess which receives the seal and the seal support.

12. The device of claim 11 further comprising a cap which holds the seal and the seal support within the cylindrical recess, the cap including a conical recessed opening and an axial bore extending therethrough adapted to direct the guide wire to the slit in the seal.

13. A catheter guide wire introducing device for aspiration of a body part and insertion of a guide wire into the body part comprising:

a flexible bulb having a first end, a second end and an interior cavity;

a fitting located on the first end on the flexible bulb, the fitting including a chamber;

an introducer needle having first and second ends and a lumen, the first end of the needle being connected to the fitting such that the lumen is in fluid communication with the chamber;

a conduit having first and second ends and a passageway extending therethrough, the conduit being axially aligned with the introducer needle, the first end of the conduit being connected to the fitting such that the conduit passageway is in fluid communication with the chamber; and

a guide wire penetrable seal assembly connected to the second end of the conduit in fluid communication with the conduit passageway for preventing the passage of fluid from within the conduit and air from outside the conduit therethrough, and for introduction of a guide wire into the conduit, wherein the guide wire penetrable seal assembly comprises a seal having a surface with a central raised portion having a depression located at an apex of the raised portion, a slit being located in the depression which is generally an alignment with the conduit, and a seal support adjacent to the seal, the seal support having a surface complementary to the surface of the seal, wherein the surface of the seal support comprises a corresponding central depression which facially engages the central raised portion of the seal and wherein the seal is capable of aspirating a body part.

14. A method for using an introducer device for aspirating and inserting a guide wire into a body part, the device including:

(i) a flexible bulb having a first end, a second end and an interior cavity;

(ii) a fitting located on the first end of the flexible bulb, the fitting including an internal chamber and first and second axially aligned passageways in fluid communication with the chamber, and a third passageway in fluid communication between the chamber and the interior cavity of the flexible bulb;

(iii) an introducer needle having first and second ends and a lumen, the first end of the needle being connected to the fitting such that the first passageway is in fluid communication with the lumen;

(iv) a conduit having first and second ends and a passageway extending therethrough, the conduit being axially aligned with the introducer needle, the first end of the conduit being connected to the fitting such that the conduit passageway is in fluid communication with the second passageway, with the conduit and the introducer needle being axially aligned; and

(v) a guide wire penetrable seal assembly connected to the second end of the conduit in fluid communication with the conduit passageway for preventing the passage of fluid from within the conduit and air from outside the conduit therethrough and for introduction of the guide wire into the conduit, the method comprising the steps of;

(a) depressing the flexible bulb to evacuate the flexible bulb through the channel and the needle;

(b) introducing the needle into a body part;

(c) releasing the flexible bulb to create a vacuum and draw fluid from the body part into the bulb and aspirate the body part;

(d) inserting a guide wire through the guide wire penetrable seal assembly; and

(e) sliding the guide wire through the chamber and the lumen of the needle and into the body part.

15. The method of claim 14 further comprising the step of:

(f) removing the introducing device from the body part over the guide wire while leaving the guide wire in the body part.

16. The method of claim 14 wherein the introducing device is operated for aspirating the body part with one hand.