Impact-driven intraosseous needle

• US 7,815,642 B2
• Filed: 02/23/2005
• Issued: 10/19/2010
• Est. Priority Date: 01/26/2004
• Status: Active Grant

• Current Assignee: Teleflex Life Sciences II LLC
• Original Assignee: Vidacare Corp. (Teleflex Incorporated)
• Inventors: Miller, Larry J.
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): Price; Nathan R
• Application Number:
  US11/064,156
• Publication Number:
  US 20050165403A1
• Time in Patent Office: 2,064 Days
• Field of Search: 604/158, 604/164, 604/272, 604/164.01, 604/136, 606/179, 606/182, 606/79
• US Class Current: 606/79
• CPC Class Codes: A61B 10/025 for taking bone, bone marrow or cartilage samples
• CPC Class Codes: A61B 10/0283 with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe A61B10/025, A61B10/0266 take precedence
• CPC Class Codes: A61B 17/0642 for bones, e.g. for osteosynthesis or connecting tendon to bone
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/1637 Hollow drills or saws producing a curved cut, e.g. cylindrical A61B10/025, A61B17/1695 take precedence
• CPC Class Codes: A61B 17/32002 with continuously rotating, oscillating or reciprocating cutting instruments
• CPC Class Codes: A61B 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• CPC Class Codes: A61B 17/3472 for bones, e.g. intraosseus injections
• CPC Class Codes: A61B 17/3476 Powered trocars, e.g. electrosurgical cutting, lasers, powered knives
• CPC Class Codes: A61B 2010/0258 Marrow samples
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/925 a spring
• CPC Class Codes: A61B 2090/0813 Accessories designed for easy sterilising, i.e. re-usable
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 90/11 with guides for needles or instruments, e.g. arcuate slides or ball joints
• CPC Class Codes: A61B 90/70 Cleaning devices specially adapted for surgical instruments
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 2210/02 : Bones
• CPC Class Codes: A61M 5/158 : Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

An apparatus for penetrating a bone marrow of a bone is provided. The apparatus includes a housing comprising a handle and a trigger mechanism, a spring-loaded assembly comprising a rod and a shaft; and a connector comprising a first end operable to connect to the drive shaft and a second end operable to attach to a penetrator hub. The penetrator hub includes a penetrator operable to access the bone marrow.

Claims

1. An apparatus for penetrating a bone and providing access to associated bone marrow disposed within the bone comprising:

a housing having a handle and a trigger mechanism operable to be compressed by an operator to activate a spring-loaded mechanism disposed with the housing;

the spring-load mechanism operable to propel portions of a penetrator assembly into the bone to access the associated bone marrow;

the spring-loaded mechanism comprising at least one spring disposed on a rod;

the rod comprising a first end and a second end with a shaft extending from the second end of the rod;

a sleeve slidably disposed over the rod and extending from the first end of the rod;

a ratchet mechanism operable to move the sleeve in a forward direction and compress the at least one spring of the spring-loaded assembly in a back-to-front direction;

a plurality of teeth disposed on exterior portions of the sleeve;

the ratchet mechanism including a first pawl and a second pawl;

the first pawl and the second pawl operable to engage the plurality of teeth disposed on the sleeve;

the ratchet mechanism including a ratchet lever operably engaged with the first pawl whereby compressing the ratchet lever by an operator when the first pawl is engaged with the plurality of teeth moves the sleeve in the back-to-front direction to compress the at least one spring;

the second pawl operable to hold the sleeve and maintain compression of the at least one spring;

a connector having a first end operable to releasably attach to the drive shaft and a second end of the connector operable to releasably attach to a first end of a penetrator hub;

a penetrator operable to access the bone marrow extending from a second end of the penetrator hub;

a longitudinal passageway extending through the length of the penetrator;

a trocar extending from the second end of the connector; and

the trocar slidably disposed in the longitudinal passageway of the penetrator when the connector is releasably engaged with the penetrator hub.

2. The apparatus of claim 1 wherein the handle further comprises an ergonomically designed shape suitable for grasping by a hand of the operator to compress the trigger mechanism.

3. The apparatus of claim 1 wherein the ratchet mechanism is operable to compress the at least one spring from back to front.

4. The apparatus of claim 1 wherein the housing comprises a mechanism to adjust tension in the spring-loaded assembly.

5. An apparatus for penetrating a bone and providing access to associated bone marrow disposed within the bone comprising:

a housing having a handle and a trigger mechanism operable to be compressed by an operator to activate a spring-loaded mechanism disposed with the housing;

the spring-load mechanism operable to propel portions of a penetrator assembly into the bone to access the associated bone marrow;

the spring-loaded mechanism having at least one spring disposed on a rod;

the rod comprising a first end and a second end with a shaft extending from the second end of the rod;

a plurality of teeth disposed on exterior portions of the rod;

a ratchet mechanism operable to move rod and compress the at least one spring of the spring-loaded assembly in front-to-back direction;

the ratchet mechanism including a first pawl and a second pawl;

the first pawl and the second pawl operable to engage the plurality of teeth disposed on the rod;

the ratchet mechanism including a ratchet lever operably engaged with the first pawl whereby compressing the ratchet lever by an operator when the first pawl is engaged with the plurality of teeth moves the rod in the front-to-back direction to compress the at least one spring;

the second pawl operable to hold the rod and maintain compression of the at least one spring;

a connector having a first end operable to releasably attach to the drive shaft and a second end of the connector operable to releasably attach to a first end of a penetrator hub;

a penetrator operable to access the bone marrow extending from a second end of the penetrator hub;

a longitudinal passageway extending through the length of the penetrator;

a trocar extending from the second end of the connector; and

the trocar slidably disposed in the longitudinal passageway of the penetrator when the connector is releasably engaged with the penetrator hub.

6. The apparatus of claim 5 wherein the handle further comprises an ergonomically designed shape suitable for grasping by a hand of the operator to compress the trigger mechanism.