Devices and methods for tissue transfer are described where a cannula may be inserted into the breast of a subject at one of several points of entry. Insertion of the cannula into the breast may be accomplished by using a guidance system to distinguish between tissue types. Once desirably positioned, the cannula may be withdrawn from the breast while automatically (or manually) injecting the fat in multiple deposits of adipose tissue or fat such that the deposited fat remains within the tract formed by the withdrawn cannula. Multiple tracts of the deposited fat may be injected within the breast until the breast has been desirably remodeled and/or augmented.

Claims

40 · 3 independent · depth 5

40 granted claims

›1.independentA tissue pumping system, comprising:na main chamber having a plunger slidably translatable within;an injection cannula in fluid communication with the…+11

›2.↳ 1The system of claim 1 further comprising a proximal body positioned between the main chamber and the motor.d2+6

›9.↳ 1The system of claim 1 wherein the main chamber defines a first diameter along a portion of the main chamber and a second diameter along a proximal por…d2

›10.↳ 1The system of claim 1 further comprising an angled lumen and a luer block in fluid communication between the main chamber and the injection cannula, w…d2

›11.↳ 1The system of claim 1 further comprising a reservoir which is fluidly connectable to the main chamber.d2+1

›13.independentA tissue pumping system, comprising:na main chamber having a plunger slidably translatable within;a proximal body positioned adjacent to the main cham…+15

›14.↳ 13The system of claim 13 wherein the circuit assembly is further programmed to translate the interrupter assembly in a stepped manner where each step de…d2

›15.↳ 13The system of claim 13 further comprising an injection cannula in fluid communication with the main chamber.d2

›16.↳ 13The system of claim 13 wherein the microprocessor is further programmed to change a direction of the plunger within the main chamber depending upon a …d2

›17.↳ 13The system of claim 13 further comprising a position sensor adjacent to the interrupter assembly and in communication with the microprocessor, where i…d2

›18.↳ 13The system of claim 13 further comprising a drive shaft coupled to the motor and the interrupter assembly.d2

›19.↳ 13The system of claim 13 wherein the interrupter assembly is comprised of a thermal insulating material.d2

›20.↳ 13The system of claim 13 wherein the limiting triggers comprise optical sensors.d2

›21.↳ 13The system of claim 13 wherein the main chamber defines a first diameter along a portion of the main chamber and a second diameter along a proximal po…d2

›22.↳ 13The system of claim 13 further comprising an angled lumen and a luer block in fluid communication between the main chamber and an injection cannula, w…d2

›23.↳ 13The system of claim 13 further comprising a reservoir which is fluidly connectable to the main chamber.d2+1

›25.↳ 13The system of claim 13 wherein the plunger translates at a rate sufficient to pump tissue between 0.1 to 2.5 cc per second without damage to the tissu…d2

›26.↳ 13The system of claim 13 wherein the plunger translates such that the pumping system maintains an internal pressure between 15 inHg and 51 inHg.d2

›27.↳ 13The system of claim 13 further comprising an actuation trigger in communication with the circuit assembly.d2+1

›29.independentA method of injecting a volume of tissue into a body, comprising:nintroducing a volume of tissue into a main chamber of a tissue pumping system;transl…+11

›30.↳ 29The method of claim 29 wherein introducing a volume of tissue comprises coupling a cartridge having a volume tissue into fluid communication with the …d2

›31.↳ 29The method of claim 29 further comprising injecting the volume of tissue into the body via an injection cannula in fluid communication with the main c…d2+1

›33.↳ 29The method of claim 29 wherein translating a plunger through the main chamber further comprises thermally insulating the volume of tissue within the m…d2

›34.↳ 29The method of claim 29 wherein monitoring a position of the plunger comprises sensing a position of the plunger via a position sensor adjacent to an i…d2

›35.↳ 29The method of claim 29 wherein reversing a direction of the plunger comprises triggering the microprocessor via a sensor sensing an interrupter assemb…d2+1

›37.↳ 29The method of claim 29 wherein reversing a direction of the plunger comprises sensing a number of steps translated by the plunger and reversing the di…d2

›38.↳ 29The method of claim 29 further comprising determining whether the position of the plunger and the volume dispensed correspond to one another via the m…d2+1

›40.↳ 29The method of claim 29 where the volume of tissue is comprised of autologous tissue and supplements.d2

Classifications

6 codes

IPC · International Patent Classification

Section A — Human necessities

A61M1/00
A61M31/00

USPC · US Patent Classification

604/152604/246604/506604/121

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Pendency

1.1 y

398 days filing → grant

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none on record

Examiner

Leah Stohr

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Priority chain

2 priority documents

Priority

11 Feb 2011

earliest claimed

›Priority documents — 2

Type	Document	Date
provisional	US 61442060	11 Feb 2011
related publication	US 20130150825 A1	13 Jun 2013

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