Apparatus to inject fluids into bone marrow and other target sites

• US 10,166,332 B2
• Filed: 03/08/2016
• Issued: 01/01/2019
• Est. Priority Date: 05/31/2002
• Status: Expired due to Term

• Current Assignee: Teleflex Life Sciences II LLC
• Original Assignee: Teleflex Medical Devices, Sarl (Teleflex Incorporated)
• Inventors: Miller, Larry J., Bolleter, David S., Schwimmer, Charles M., Wilk, Robert A.
• Primary Examiner(s): Osinski, Bradley J
• Application Number:
  US15/064,272
• Publication Number:
  US 20160184509A1
• Time in Patent Office: 1,029 Days
• 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 17/3403 Needle locating or guiding means guides for suture needles A61B17/0482; guiding or tracking by nuclear magnetic resonance G01R33/285
• 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 2017/3413 guided by ultrasound
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself
• CPC Class Codes: A61B 90/11 with guides for needles or instruments, e.g. arcuate slides or ball joints
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 2005/3103 Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
• CPC Class Codes: A61M 2005/3289 with rotation of the needle, e.g. to ease penetration
• CPC Class Codes: A61M 2210/02 Bones
• CPC Class Codes: A61M 5/1454 spring-actuated, e.g. by a clockwork
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/2033 Spring-loaded one-shot injectors with or without automatic needle insertion multishot dosing syringes A61M5/31525, needle insertion only A61M5/3287
• CPC Class Codes: A61M 5/24 Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic ampoules or carpules A61J1/06
• CPC Class Codes: A61M 5/31511 Piston or piston-rod constructions, e.g. connection of piston with piston-rod A61M5/5066 takes precedence
• CPC Class Codes: A61M 5/3291 Shafts with additional lateral openings
• CPC Class Codes: A61M 5/34 Constructions for connecting the needle , e.g. to syringe nozzle or needle hub connecting catheter tubes to hubs A61M25/0014

Abstract

The present disclosure relates to an apparatus for delivering a quantity of fluid to bone marrow. The apparatus may include a drive housing, a plunger operating assembly, a retractable sleeve, a first spring, a second spring, and a release mechanism. The drive housing may include a first portion configured to engage a driver assembly and a second portion configured to engage a cartridge assembly. The cartridge assembly may a fluid reservoir and a plunger assembly slidably disposed in the fluid reservoir. The cartridge assembly may be engaged with a bone penetrating needle and configured to rotate to insert the bone penetrating needle into the bone marrow. The first release mechanism may release the second spring to move the plunger operating assembly when the cartridge assembly is rotated to insert the bone penetrating needle into the bone marrow and the retractable sleeve is moved to a retracted position.

Claims

1. An apparatus for delivering a quantity of fluid to bone marrow comprising:

a drive housing comprising a first portion configured to engage a driver assembly and a second portion configured to engage a cartridge assembly, the drive housing configured to receive a rotational force from the driver assembly and to transmit the rotational force to the cartridge assembly, the cartridge assembly comprising a fluid reservoir and a plunger assembly slidably disposed in the fluid reservoir, the cartridge assembly engaged with a bone penetrating needle and configured to rotate to insert the bone penetrating needle into the bone marrow;

a plunger operating assembly configured to receive a portion of the plunger assembly of the cartridge assembly;

a retractable sleeve configured to displace longitudinally relative to the drive housing and the plunger operating assembly, the retractable sleeve configured to move from a first position to a second position;

a first spring configured to bias the retractable sleeve in the first position;

a second spring configured to move the plunger operating assembly such that the plunger operating assembly moves the plunger assembly of the cartridge assembly to deliver the quantity of fluid to the bone marrow;

a first release mechanism configured to release the second spring to move the plunger operating assembly; and

a second release mechanism configured to release the engagement between the second portion of the drive housing and the cartridge assembly when the quantity of fluid is delivered to the bone marrow,

wherein the first release mechanism releases the second spring to move the plunger operating assembly when the cartridge assembly is rotated to insert the bone penetrating needle into the bone marrow and the retractable sleeve is moved to its second position.

2. The apparatus of claim 1, where the first release mechanism comprises a pawl latch, the pawl latch configured to move from a first position to a second position that releases the second spring to move the plunger operating assembly,

wherein the retractable sleeve comprises a ramp formed on an inner surface of the retractable sleeve, the ramp configured to move the pawl latch from its first position to its second position when the cartridge assembly is rotated to insert the bone penetrating needle into the bone marrow and the retractable sleeve is moved to its second position.

3. The apparatus of claim 2, further comprising a third spring configured to bias the pawl latch in its first position.

4. The apparatus of claim 1, wherein the second release mechanism comprises one or more balls configured to displace radially between a first position and a second position,

the one or more balls configured to maintain the engagement between the second portion of the drive housing and the cartridge assembly when the one or more balls are in the first position,

the one or more balls configured to release the engagement between the second portion of the drive housing and the cartridge assembly when the one or more balls are in the second position.

5. The apparatus of claim 4, wherein the retractable sleeve comprises one or more recesses formed on an inner surface of the retractable sleeve, each recess configured to receive a ball of the one or more balls to allow the ball to displace radially from the first position to the second position.

6. The apparatus of claim 4, wherein the second release mechanism further comprises one or more latch components configured to displace from a first position and a second position,

wherein the one or more latch components cooperate with the one or more balls to maintain the engagement between the second portion of the drive housing and the cartridge assembly when the one or more latch components and the one or more balls are in their first positions,

wherein the one or more latch components cooperate with the one or more balls to release the engagement between the second portion of the drive housing and the cartridge assembly when the one or more latch components and the one or more balls are in their second positions.

7. The apparatus of claim 6, wherein the plunger assembly of the cartridge assembly comprises one or more recesses formed on an outer surface of the plunger assembly, each recess configured to receive a ball of the one or more balls to allow the ball to displace radially from the first position to the second position.

8. The apparatus of claim 1, wherein the driver assembly comprises a motor and a drive shaft coupled to and extending from the motor,

wherein the first portion of the drive housing comprising an opening configured to receive a portion of the drive shaft.

9. An apparatus for delivering a quantity of fluid to bone marrow comprising:

a housing;

a motor disposed in the housing;

a drive shaft coupled to and extending from the motor;

a drive housing comprising a first portion configured to engage the drive shaft and a second portion configured to engage a cartridge assembly, the drive housing configured to receive a rotational force from the drive shaft and to transmit the rotational force to the cartridge assembly, the cartridge assembly comprising a fluid reservoir and a plunger assembly slidably disposed in the fluid reservoir, the cartridge assembly engaged with a bone penetrating needle and configured to rotate to insert the bone penetrating needle into the bone marrow;

a plunger operating assembly configured to receive a portion of the plunger assembly of the cartridge assembly;

a retractable sleeve configured to displace longitudinally relative to the drive housing and the plunger operating assembly, the retractable sleeve configured to move from a first position to a second position;

a first spring configured to bias the retractable sleeve in the first position;

a second spring configured to move the plunger operating assembly such that the plunger operating assembly moves the plunger assembly of the cartridge assembly to deliver the quantity of fluid to the bone marrow;

a first release mechanism configured to release the second spring to move the plunger operating assembly; and

a second release mechanism configured to release the engagement between the second portion of the drive housing and the cartridge assembly when the quantity of fluid is delivered to the bone marrow,

wherein the first release mechanism releases the second spring to move the plunger operating assembly when the cartridge assembly is rotated to insert the bone penetrating needle into the bone marrow and the retractable sleeve is moved to its second position.

10. The apparatus of claim 9, wherein the drive housing, the first spring, and the second spring are disposed in portions of the housing,

wherein a portion of the retractable sleeve extends from an opening in the housing.

11. The apparatus of claim 10, wherein the housing comprises a handle,

wherein the handle comprises a trigger,

wherein the trigger is configured to activate the motor to rotate the drive shaft.

12. The apparatus of claim 9, where the first release mechanism comprises a pawl latch, the pawl latch configured to move from a first position to a second position that releases the second spring to move the plunger operating assembly,

wherein the retractable sleeve comprises a ramp formed on an inner surface of the retractable sleeve, the ramp configured to move the pawl latch from its first position to its second position when the cartridge assembly is rotated to insert the bone penetrating needle into the bone marrow and the retractable sleeve is moved to its second position.

13. The apparatus of claim 12, further comprising a third spring configured to bias the pawl latch in its first position.

14. The apparatus of claim 12, wherein the retractable sleeve comprises a reduced diameter portion and an enlarged diameter portion with a shoulder portion formed between the reduced diameter portion and the enlarged diameter portion,

wherein the ramp is formed on an inner surface of the enlarged diameter portion proximate to the shoulder portion.

15. The apparatus of claim 9, wherein the second release mechanism comprises one or more balls configured to displace radially between a first position and a second position,

the one or more balls configured to maintain the engagement between the second portion of the drive housing and the cartridge assembly when the one or more balls are in the first position,

the one or more balls configured to release the engagement between the second portion of the drive housing and the cartridge assembly when the one or more balls are in the second position.

16. The apparatus of claim 15, wherein the retractable sleeve comprises one or more recesses formed on an inner surface of the retractable sleeve, each recess configured to receive a ball of the one or more balls to allow the ball to displace radially from the first position to the second position.

17. The apparatus of claim 9, wherein the portion of the retractable sleeve that extends from the opening in the housing comprises a window.

18. The apparatus of claim 9, wherein at least the portion of the retractable sleeve that extends from the opening in the housing is formed of a transparent material.

19. An apparatus for delivering a quantity of fluid to bone marrow comprising:

a drive housing comprising a first portion configured to engage a driver assembly and a second portion configured to engage a cartridge assembly, the drive housing configured to receive a rotational force from the driver assembly and to transmit the rotational force to the cartridge assembly, the cartridge assembly comprising a fluid reservoir and a plunger assembly slidably disposed in the fluid reservoir, the cartridge assembly engaged with a bone penetrating needle and configured to rotate to insert the bone penetrating needle into the bone marrow;

a plunger operating assembly configured to receive a portion of the plunger assembly of the cartridge assembly, the plunger operating assembly further configured to move when the cartridge assembly is rotated to insert the bone penetrating needle into the bone marrow;

a first release mechanism configured to permit the plunger operating assembly to move from a retracted position to a released position;

a second release mechanism configured to release the engagement between the second portion of the drive housing and the cartridge assembly when the quantity of fluid is delivered to the bone marrow; and

a spring loaded retractable sleeve configured to displace longitudinally relative to the drive housing and the plunger operating assembly, the retractable sleeve configured to move from an extended position to a retracted position;

wherein the plunger operating assembly is configured to move the plunger assembly of the cartridge assembly to deliver the quantity of fluid to the bone marrow when the plunger operating assembly is moved to the released position and the retractable sleeve is moved to the retracted position.

20. The apparatus of claim 19, wherein the second release mechanism is further configured to maintain a positive engagement between the drive housing and the cartridge assembly until after the plunger assembly of the cartridge assembly has moved from a first position to a second position such that the quantity of fluid contained in the cartridge assembly is injected at a target site before disengagement of the cartridge assembly from the drive housing.