Instrument for catheterization

Claim 2

A surgical instrument for use with a syringe barrel for drawing blood and inserting guide-wires or other instruments (devices) into a blood vessel, comprising: a needle having an elongated shaft, including a hub end and a beveled end for puncturing the blood vessel; said needle including a longitudinal lumen extending along the length of said shaft and parallel to said beveled end of said needle; a hub attached to said needle, said hub having a first bore in fluid communication with said lumen, said hub being adapted to engage the syringe barrel; said hub including a second bore in fluid communication with said lumen for selective insertion of a guide-wire into said lumen; and a dilator circumferentially disposed around said needle shaft and extending from said hub to adjacent said beveled end of said needle shaft.

Claim 3

The surgical instrument of claim 1 further comprising a sheath circumferentially disposed around said dilator and extending from said hub to a location between said hub and said beveled end of said needle shaft.

Claim 4

The surgical instrument of claim 1 wherein said dilator includes first and second ends, said first end being disposed adjacent to said beveled end of said needle and having an outer diameter substantially equal to the outer diameter of said needle, said second end thereof being disposed adjacent to said hub and having an outer diameter greater than the outer diameter of said first end and a tapered portion between said ends.

Claim 5

The surgical instrument of claim 3 wherein said second end of said dilator includes means for grasping said dilator.

Claim 6

The surgical instrument of claim 4 wherein said grasping means includes tabs.

Claim 7

The surgical instrument of claim 2 wherein said sheath includes means for grasping said sheath and disposed adjacent to said hub.

Claim 8

The surgical instrument of claim 6 wherein said means for grasping includes tabs.

Claim 9

The surgical instrument of claim 1 wherein said hub includes indicia indicating the position of said beveled end of said needle.

Claim 10

The surgical instrument of claim 1 wherein said dilator has a self-sealing grommet.

Claim 11

The surgical instrument of claim 1 wherein said sheath has a self-sealing grommet.

Claim 12

The surgical instrument of claim 1 further comprises: a Y connector attached to the hub of said needle which incorporates the aforementioned lumen; and said Y connector having one or more lumens and a self-sealing grommet.

Claim 13

The surgical instrument of claim 1 wherein said needle includes indicia indicating the position of said beveled end of said needle.

Claim 14

A surgical instrument comprising: a needle having an elongated shaft, including a hub end and a sharp end beveled in a direction toward a side of said needle; said needle having one or more longitudinal lumens extending along the length of said shaft of said needle and parallel to said beveled side of said needle; a dilator circumferentially disposed around said needle shaft and extending from said hub to said beveled end of said needle such that the dilator is shorter than the total length of said needle shaft and said dilator has a tapered end towards said beveled end of said needle; said dilator end adjacent to the beveled end of said needle having an outer diameter substantially equal to the outer diameter of said needle; said dilator including tabs adjacent said hub of said needle; a sheath circumferentially disposed around said dilator wherein said sheath is substantially shorter than said dilator with a tapered end towards said beveled end of said needle; said sheath including tabs adjacent said hub of said needle; and a protective sleeve for enclosing said sheath.

Claim 15

A surgical instrument comprising: a needle having an elongated shaft, including a hub end and a sharp end beveled in a direction toward a side of said needle; said needle having one or more longitudinal lumens extending along the length of said shaft of said needle and parallel to said beveled side of said needle; a dilator circumferentially disposed around said needle shaft and extending from said hub to said beveled end of said needle such that the dilator is shorter than the total length of said needle shaft and said dilator has a tapered end towards said beveled end of said needle; said dilator end adjacent to the beveled end of said needle having an outer diameter substantially equal to the outer diameter of said needle; said dilator including tabs adjacent said hub of said needle; a sheath circumferentially disposed around said dilator wherein said sheath is substantially shorter than said dilator with a tapered end towards said beveled end of said needle; said sheath including tabs adjacent said hub of said needle; and a protective sleeve for enclosing said sheath.

Claim 16

The surgical instrument of claim 13, wherein said dilator includes a wall having a lumen circumferentially disposed around said needle such that said wall can be filled with air or fluid for controlling the diameter of said dilator.

Claim 17

The surgical instrument of claim 13 and further including a shock sheath disposed within said sheath and including multiple ports for receipt or withdrawal of fluids.

Claim 18

The surgical instrument of claim 13 wherein said protective sleeve has a variable length.

Claim 19

The surgical instrument of claim 13 and further including: a catheter circumferentially disposed around said needle.

Claim 20

The surgical instrument of claim 13 wherein said dilator is biodegradable.

Claim 21

The surgical instrument of claim 13 wherein said hub includes indicia indicating the direction of said beveled side of said end of said needle.

Claim 22

The surgical instrument of claim 17 wherein said needle is inserted through a self-sealing grommet or side-hole or distal tip of the catheter.

Claim 23

The surgical instrument of claim 13 wherein multiple lumens may be incorporated in different components of the system.

Claim 24

The surgical instrument of claim 13 wherein said protective sleeve encompasses a catheter or sleeve device used therein.

Claim 25

A surgical instrument for use with a syringe barrel for drawing blood and inserting guide-wires or other instruments (devices) into a blood vessel, comprising: a needle having an elongated shaft, including a hub end and a beveled end beveled toward a beveled side for puncturing the blood vessel, each of said needle, said hub end and said beveled end having an outer diameter; said needle including a longitudinal lumen extending along the length of said elongated shaft and parallel to said beveled side of beveled end of said needle; a hub attached to said needle, said hub having a first bore in fluid communication with said lumen, said hub being adapted to engage said syringe barrel; said hub including a second bore in fluid communication with said lumen for selective insertion of a guide-wire into said lumen; a Y connector attached to said hub of said needle which incorporates said lumen, said Y connector having at least one additional lumen and a self-sealing grommet; a dilator circumferentially disposed around said needle shaft and extending from said hub to adjacent said beveled end of said needle shaft, said dilator having a self-sealing grommet; and a sheath circumferentially disposed around said dilator, extending from said hub to a location between said hub and said beveled end of said needle shaft, said sheath having a self-sealing grommet.

Claim 26

A surgical instrument for use with a syringe barrel for drawing blood and inserting guide-wires or other instruments (devices) into a blood vessel, comprising: a needle having an elongated shaft, including a hub end and a beveled end beveled toward a beveled side for puncturing the blood vessel, each of said needle, said hub end and said beveled end having an outer diameter; said needle including a longitudinal lumen extending along the length of said elongated shaft and parallel to said beveled side of beveled end of said needle; a hub attached to said needle, said hub having a first bore in fluid communication with said lumen, said hub being adapted to engage said syringe barrel; said hub including a second bore in fluid communication with said lumen for selective insertion of a guide-wire into said lumen; a Y connector attached to said hub of said needle which incorporates said lumen, said Y connector having at least one additional lumen and a self-sealing grommet; a dilator circumferentially disposed around said needle shaft and extending from said hub to adjacent said beveled end of said needle shaft, said dilator having a self-sealing grommet; and a sheath circumferentially disposed around said dilator, extending from said hub to a location between said hub and said beveled end of said needle shaft, said sheath having a self-sealing grommet.

Claim 27

The surgical instrument of claim 23 wherein said dilator includes first and second ends, said first end being disposed adjacent said beveled end of said needle and having an outer diameter substantially equal to the outer diameter of said needle, said second end of said dilator being disposed adjacent said hub and having an outer diameter greater than the outer diameter of said first end and a tapered portion between said first and second ends of said dilator.

Claim 28

The surgical instrument of claim 24 wherein said second end of said dilator includes a means for grasping said dilator.

Claim 29

The surgical instrument of claim 25 wherein said means for grasping said dilator includes tabs.

Claim 30

The surgical instrument of claim 23 wherein said sheath includes means for grasping said sheath, said sheath grasping means disposed adjacent to said hub.

Claim 31

The surgical instrument of claim 27 wherein said means for grasping said sheath includes tabs.

Claim 32

The surgical instrument of claim 23 wherein said beveled end of said needle has a beveled side and said hub includes indicia indicating the position of said beveled side of said beveled end of said needle.

Claim 33

The surgical instrument of claim 23 wherein said beveled end of said end of said needle has a beveled side and said needle includes indicia indicating the position of said beveled side of said beveled side of said needle.

Claim 34

A surgical instrument comprising: a needle having an elongated shaft, including a hub end and a sharp beveled end; said needle having one or more longitudinal lumens extending along the length of said shaft of said needle and parallel to said beveled end of said needle; a dilator circumferentially disposed around said needle shaft and extending from said hub to said beveled end of said needle such that the dilator is shorter than the total length of said needle shaft and said dilator has a tapered end towards said beveled end of said needle; said dilator end adjacent to said beveled end of said needle having an outer diameter substantially equal to the outer diameter of said needle; said dilator including tabs adjacent said hub of said needle; a sheath circumferentially disposed around said dilator wherein said sheath is substantially shorter than said dilator with a tapered end towards said beveled end of said needle; said sheath including tabs adjacent said hub of said needle; and a protective sleeve for enclosing said sheath and for encompassing a catheter or other device used herein.

Claim 35

A surgical instrument comprising: a needle having an elongated shaft, including a hub end and a sharp beveled end; said needle having one or more longitudinal lumens extending along the length of said shaft of said needle and parallel to said beveled end of said needle; a dilator circumferentially disposed around said needle shaft and extending from said hub to said beveled end of said needle such that the dilator is shorter than the total length of said needle shaft and said dilator has a tapered end towards said beveled end of said needle; said dilator end adjacent to said beveled end of said needle having an outer diameter substantially equal to the outer diameter of said needle; said dilator including tabs adjacent said hub of said needle; a sheath circumferentially disposed around said dilator wherein said sheath is substantially shorter than said dilator with a tapered end towards said beveled end of said needle; said sheath including tabs adjacent said hub of said needle; and a protective sleeve for enclosing said sheath and for encompassing a catheter or other device used herein.

Claim 36

The surgical instrument of claim 31, wherein said dilator includes a wall having a lumen circumferentially disposed around said needle such that said wall can be filled with air or fluid for controlling the diameter of said dilator, where said dilator may be tapered.

Claim 37

The surgical instrument of claim 31 and further including a shock sheath disposed within said sheath and including multiple ports for infusion or withdrawal of fluids.

Claim 38

The surgical instrument of claim 31 wherein said protective sleeve has a variable length and form.

Claim 39

The surgical instrument of claim 31 and further including: a catheter circumferentially disposed around said needle.

Claim 40

The surgical instrument of claim 31 wherein said dilator is biodegradable.

Claim 41

The surgical instrument of claim 31 wherein said hub includes indicia indicating the position of said beveled end of said needle.

Claim 42

The surgical instrument of claim 31 wherein said needle is inserted through a self-sealing grommet in said catheter.

Claim 43

The surgical instrument of claim 31 wherein multiple lumens may be incorporated in different components of said surgical instrument.