CA2690894A1 - Bone cement mixing and delivery device for injection and method thereof - Google Patents

Bone cement mixing and delivery device for injection and method thereof Download PDF

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Publication number
CA2690894A1
CA2690894A1 CA2690894A CA2690894A CA2690894A1 CA 2690894 A1 CA2690894 A1 CA 2690894A1 CA 2690894 A CA2690894 A CA 2690894A CA 2690894 A CA2690894 A CA 2690894A CA 2690894 A1 CA2690894 A1 CA 2690894A1
Authority
CA
Canada
Prior art keywords
mixing
set forth
mixing blade
assembly
handle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2690894A
Other languages
French (fr)
Other versions
CA2690894C (en
Inventor
Jared P. Coffeen
Richard F. Huyser
Christopher M. Tague
Weston Persteiner
Dennis A. Stratton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stryker Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2690894A1 publication Critical patent/CA2690894A1/en
Application granted granted Critical
Publication of CA2690894C publication Critical patent/CA2690894C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802—Equipment for handling bone cement or other fluid fillers
    • A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
    • A61B17/8822—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw pump plunger, hydraulic force transmissions, application of vibrations or a vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/44—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement
    • B01F31/441—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement performing a rectilinear reciprocating movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802—Equipment for handling bone cement or other fluid fillers
    • A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
    • A61B17/8827—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it with filtering, degassing, venting or pressure relief means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802—Equipment for handling bone cement or other fluid fillers
    • A61B17/8833—Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means
    • A61B2017/8838—Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means for mixing bone cement or fluid fillers

Abstract

A bone cement mixing and delivery assembly (30) is disclosed for mixing a powdered copolymer and a liquid monomer to form a bone cement and delivering the bone cement. The assembly includes a cartridge having a distal end (34) and a proximal end (36) and defining a mixing chamber (40) between the distal end and the proximal end. A transfer mechanism having a cup (52) and a stem supporting a piston (64) and a plunger is connected to the distal end. The transfer mechanism includes a first advancement mechanism (68) for advancing the piston and plunger in unison and a second advancement mechanism (70) for moving the plunger independent of the piston. The assembly further includes a removable bundle (120) having a shaft for attachment of a mixing blade and a quick-release connector (142) and a release button (144) for locking and unlocking the mixing blade (128) from the removable handle.

Claims (22)

1. A bone cement mixing and delivery assembly for mixing a powdered copolymer with a liquid monomer to form a bone cement and delivering the bone cement percutaneously to a patient, said device comprising:

a cartridge having a distal end and a proximal end and defining a mixing chamber between said distal end and said proximal end;
a lid connected to said proximal end and having an aperture;
a removable handle extending through said aperture and having a first end and a second end defining a hollow cavity between said first end and said second end;
a shaft disposed within said hollow cavity and extending from said first end of said removable handle;
a mixing blade having a bore and said bore receiving said first end of said removable handle; and a quick-release connector between said mixing blade and said shaft such that said mixing blade is releasable from said removable handle.
2. An assembly as set forth in claim 1 wherein said quick-release connector further comprises a release button engaging said shaft and being moveable between a locked and an unlocked position for locking and unlocking said mixing blade to said removable handle.
3. An assembly as set forth in claim 2 wherein said quick-release connector further comprises a flange extending from said bore of said mixing blade and a flange recess disposed in said first end of said removable handle such that in said unlocked position said flange engages said flange recess.
4. An assembly as set forth in claim 3 wherein said shaft further comprises a blade attachment end extending through said bore, said blade attachment end having a projection for engaging said flange wherein engagement of said flange occurs when said release button is in said locked position and said flange is in said flange recess.
5. An assembly as set forth in claim 4 further including a piston disposed in said mixing chamber and presenting a face for transferring the bone cement from said mixing chamber to said proximal end.
6. An assembly as set forth in claim 5 further including a plunger moveable relative to said piston for extending from said piston and into said aperture for forcing the bone cement through said aperture.
7. An assembly as set forth in claim 6 further including a transfer mechanism connected to said distal end of said cartridge for moving said piston and said plunger in unison to a stop position that limits further movement of said piston and thereafter moves said plunger relative to said piston and into said aperture.
8. An assembly as set forth in claim 7 wherein said transfer mechanism includes a cap surrounding said distal end and a first advancement mechanism interconnected between said cap and said distal end for moving said piston and said plunger in unison and a second advancement mechanism for moving said plunger relative to said piston.
9. An assembly as set forth in claim 8 wherein said first advancement mechanism includes male threads on said distal end and female threads inside said cap threadably engaging said male threads for moving said cap axially over said cartridge upon rotation of said cap relative to said cartridge.
10. An assembly as set forth in claim 9 wherein said second advancement mechanism includes coacting threads interconnecting said plunger and said piston for moving said plunger axially relative to said piston in response to rotation of said cap at said stop position.
11. An assembly as set forth in claim 1 further comprising a vent connected to said lid for removing gas particles from said mixing chamber.
12. An assembly as set forth in claim 11 further comprising a filter disposed within said vent for filtering said gas particles.
13. An assembly as set forth in claim 1 further comprising a cooling chamber positioned adjacent said mixing chamber for receiving a cooling fluid to cool said mixing chamber.
14. An assembly as set forth in claim 2 wherein said quick-release connector further comprises a collapsible ball extending from said first end of said removable handle and engaging said mixing blade such that in said unlocked position said collapsible ball collapses thereby releasing said mixing blade.
15. A method of mixing a powdered copolymer and a liquid monomer to form a bone cement in a cartridge having a distal end and a proximal end defining a mixing chamber therebetween with a removable handle having a release button and a quick-release connector for attachment to a mixing blade and a lid having an aperture connected to the proximal end, said method comprising the steps of:

disposing the powdered copolymer and the liquid monomer into the mixing chamber;

connecting the lid to the proximal end to seal the mixing chamber having the mixing blade disposed within the mixing chamber;
agitating the powdered copolymer and the liquid monomer with the mixing blade by manipulating the removable handle to form the bone cement; and actuating the release button and releasing the mixing blade from the quick-release connector such that the removable handle is removable through the aperture and the mixing blade remains in the mixing chamber.
16. A method as set forth in claim 15 wherein the quick-release connector further includes a shaft disposed within the removable handle and connected to the release button and wherein the step of actuating the release button further comprises the step of sliding the release button and rotating the shaft to unlock the mixing blade from the removable handle.
17. A method as set forth in claim 15 wherein the step of connecting the lid further comprises the step of inserting the removable handle through the aperture of the lid prior to connecting the lid to the proximal end.
18. A method as set forth in claim 17 wherein the step of connecting the lid further comprises the step of attaching the mixing blade to the shaft while the release button is in the unlocked position and sliding the release button to a locked position for locking the mixing blade to the removable handle such that mixing blade is on one side of the lid, and it enters the mixing chamber as the lid is connected.
19 19. A method as set forth in claim 15 further comprising the step of removing gas particles from the mixing chamber.
20. A method as set forth in claim 19 further comprising the step of filtering the gas particles as the gas particles are being removed from the mixing chamber.
21. A mixing apparatus, comprising:

a container defining an interior cavity;
a handle having a first end for extending into said interior cavity;
a mixing blade for releasably coupling to said first end of said handle in said interior cavity;

a quick-release connector operable between said handle and said mixing blade;
and a release device disposed outside of said interior cavity and operable between a locked position wherein said quick-release connector locks said mixing blade to said handle and an unlocked position wherein said quick-release connector releases said mixing blade from said handle.
22. A method of mixing at least two separate components of bone cement in an interior cavity of a container using a mixing blade releasably coupled to a handle, said method comprising the steps of:

disposing the at least two separate components of the bone cement in the interior cavity of the container;
mixing the at least two separate components with the mixing blade in the interior cavity to form a uniform bone cement mixture;
actuating a release device outside of the interior cavity to release the mixing blade from the handle in the interior cavity after mixing the at least two separate components with the mixing blade; and removing the handle from the interior cavity while the mixing blade remains in the interior cavity.
CA2690894A 2001-07-16 2002-01-31 Bone cement mixing and delivery device for injection and method thereof Expired - Lifetime CA2690894C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US32578301P 2001-07-16 2001-07-16
US60/325,783 2001-07-16
US09/981,552 US6547432B2 (en) 2001-07-16 2001-10-17 Bone cement mixing and delivery device for injection and method thereof
US09/981,552 2001-10-17
CA2448238A CA2448238C (en) 2001-07-16 2002-01-31 Bone cement mixing and delivery device for injection and method thereof

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA2448238A Division CA2448238C (en) 2001-07-16 2002-01-31 Bone cement mixing and delivery device for injection and method thereof

Publications (2)

Publication Number Publication Date
CA2690894A1 true CA2690894A1 (en) 2003-01-30
CA2690894C CA2690894C (en) 2012-09-11

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
CA2448238A Expired - Lifetime CA2448238C (en) 2001-07-16 2002-01-31 Bone cement mixing and delivery device for injection and method thereof
CA2690894A Expired - Lifetime CA2690894C (en) 2001-07-16 2002-01-31 Bone cement mixing and delivery device for injection and method thereof

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA2448238A Expired - Lifetime CA2448238C (en) 2001-07-16 2002-01-31 Bone cement mixing and delivery device for injection and method thereof

Country Status (6)

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US (5) US6547432B2 (en)
EP (2) EP2243545B1 (en)
JP (2) JP4068057B2 (en)
CA (2) CA2448238C (en)
DE (1) DE02787175T1 (en)
WO (1) WO2003008080A1 (en)

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US7134782B2 (en) 2006-11-14

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