US6183442B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tissue penetrating device and methods for using same
Assignee: BOARD OF REGENTS OF UT SYSTEM
•
Filing: 1998-03-02
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Granted: 2001-02-06
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Expires: 2018-03-02
Abstract
Abstract The present invention involves a device for tissue, especially hard tissue, penetration device which incorporated a novel paddle-shaped needle for low friction rotatory penetration of hard tissue and a controlled delivery or extraction system for transfer of material from to device into a tissue site or transfer of material from the tissue site to the device. The delivery system or extraction system includes at least on solenoid or other similar device.
Inventors
- 👤 Kyriacos A. Athanasiou
- 👤 George Constantinides
- 👤 Dan R. Lanctot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:00
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61M; A61M5/00; A61M5/178; A61M5/20; A61M5/31; A61M5/32; A61M5/3286; A61M5/3287; A61M2005/3289; A61M5/3205; A61M5/321; A61M5/3243; A61M5/326; A61M5/329; A61M5/3291; A61M5/46
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
164 words
A device comprising: a. a fluid reservoir; b. a tissue penetrator or needle detachably engaging a first end of the reservoir; c. a plunger associated with the reservoir at its second end and designed to slidingly engage an interior surface of the reservoir; d. a solenoid having a shaft detachably engaging a top of the plunger for moving the plunger within the reservoir at a controlled rate for controlled delivery of material into or extraction of bio-material out of a tissue site; e. a power supply and associated circuitry for supplying electrical power to the solenoid; f. a switch for starting and stopping the device; g. a housing surrounding the reservoir, the plunger, the solenoid and the power supply; and h. a disposable retractable protector attached to the housing at its proximal end and including a septum at its distal to protect a tip of the penetrator and adapted to engage a portion of an interior surface of the housing at its proximal end.
Claim 2
Independent Claim
164 words
A device comprising: a. a fluid reservoir; b. a tissue penetrator or needle detachably engaging a first end of the reservoir; c. a plunger associated with the reservoir at its second end and designed to slidingly engage an interior surface of the reservoir; d. a solenoid having a shaft detachably engaging a top of the plunger for moving the plunger within the reservoir at a controlled rate for controlled delivery of material into or extraction of bio-material out of a tissue site; e. a power supply and associated circuitry for supplying electrical power to the solenoid; f. a switch for starting and stopping the device; g. a housing surrounding the reservoir, the plunger, the solenoid and the power supply; and h. a disposable retractable protector attached to the housing at its proximal end and including a septum at its distal to protect a tip of the penetrator and adapted to engage a portion of an interior surface of the housing at its proximal end.
Claim 3
Dependent Claim
31 words
The device of claim 1 , further comprising: i. a second solenoid for controlling needle penetration speed and depth; and j. a second switch for starting and stopping the second solenoid.
Claim 4
Dependent Claim
77 words
The device of claim 1 , further comprising: i. a motor for rotating the solenoid, the plunger, the reservoir and the needle during tissue site penetration; j. a motor/solenoid coupler assembly including a coupler, a bushing and a bearing for transferring the rotational energy of the motor to the solenoid, plunger, reservoir and needle; and k. a relay circuit for automatically stopping the motor after tissue penetration after a change in motor torque and starting the solenoid.
Claim 5
Dependent Claim
20 words
The device of claim 1 , wherein the needle including a tip having two cutting surface and two non-cutting surfaces.
Claim 6
Dependent Claim
33 words
The device of claim 4 , wherein the needle tip is of a parallelogram shape having long sides and short sides and the cutting surfaces are opposed and the non-cutting surfaces are opposed.
Claim 7
Dependent Claim
33 words
The device of claim 5 , wherein the cutting surfaces are associated with short sides of the parallelogram and wherein the parallelogram has an acute angle less than 90° and greater than 0°.
Claim 8
Dependent Claim
17 words
The device of claim 6 , wherein the acute angle is between about 80° and about 10°.
Claim 9
Dependent Claim
17 words
The device of claim 6 , wherein the acute angle is between about 80° and about 50°.
Claim 10
Dependent Claim
17 words
The device of claim 6 , wherein the acute angle is between about 80° and about 60°.
Claim 11
Dependent Claim
13 words
The device of claim 6 , wherein the acute angle is about 70°.
Claim 12
Independent Claim
212 words
A device comprising: a. needle/solenoid assembly including: i. a fluid reservoir; ii. a tissue penetrator or needle detachably engaging a first end of the reservoir; iii. a plunger associated with the reservoir at its second end and designed to slidingly engage an interior surface of the reservoir; iv. a solenoid having a shaft detachably engaging a top of the plunger for moving the plunger within the reservoir at a controlled rate for controlled delivery of material into or extraction of bio-material out of a tissue site; b. a motor for rotating the needle/solenoid assembly during tissue site penetration; c. a motor/solenoid coupler assembly including a coupler, a bushing and a bearing for transferring the rotational energy from the motor to the needle/solenoid assembly; d. a power supply for supplying electrical power to the solenoid; e. a relay circuit for stopping the motor after tissue penetration after a change in motor torque and starting the solenoid; f. a switch for starting and stopping the device; g. a housing surrounding the motor, motor/solenoid coupler and the needle/solenoid assembly; and h. a biased retractable protector having a septum at its distal for protecting a tip of the penetrator and adapted to engage a portion of an interior surface of the housing at its proximal end.
Claim 13
Independent Claim
212 words
A device comprising: a. needle/solenoid assembly including: i. a fluid reservoir; ii. a tissue penetrator or needle detachably engaging a first end of the reservoir; iii. a plunger associated with the reservoir at its second end and designed to slidingly engage an interior surface of the reservoir; iv. a solenoid having a shaft detachably engaging a top of the plunger for moving the plunger within the reservoir at a controlled rate for controlled delivery of material into or extraction of bio-material out of a tissue site; b. a motor for rotating the needle/solenoid assembly during tissue site penetration; c. a motor/solenoid coupler assembly including a coupler, a bushing and a bearing for transferring the rotational energy from the motor to the needle/solenoid assembly; d. a power supply for supplying electrical power to the solenoid; e. a relay circuit for stopping the motor after tissue penetration after a change in motor torque and starting the solenoid; f. a switch for starting and stopping the device; g. a housing surrounding the motor, motor/solenoid coupler and the needle/solenoid assembly; and h. a biased retractable protector having a septum at its distal for protecting a tip of the penetrator and adapted to engage a portion of an interior surface of the housing at its proximal end.
Claim 14
Dependent Claim
17 words
The device of claim 11 , wherein the needle including two cutting surface and two non-cutting surfaces.
Claim 15
Dependent Claim
32 words
The device of claim 12 , wherein the needle is of a parallelogram shape having long sides and short sides and the cutting surfaces are opposed and the non-cutting surfaces are opposed.
Claim 16
Dependent Claim
33 words
The device of claim 13 , wherein the cutting surfaces are associated with short sides of the parallelogram and wherein the parallelogram has an acute angle less than 90° and greater than 0°.
Claim 17
Dependent Claim
17 words
The device of claim 14 , wherein the acute angle is between about 80° and about 10°.
Claim 18
Dependent Claim
17 words
The device of claim 14 , wherein the acute angle is between about 80° and about 50°.
Claim 19
Dependent Claim
17 words
The device of claim 14 , wherein the acute angle is between about 80° and about 60°.
Claim 20
Dependent Claim
13 words
The method of claim 14 , wherein the acute angle is about 70°.
Claim 21
Dependent Claim
53 words
A method comprising the steps of: a. placing a device of claim 1 in contact with a skin of an animal above a tissue site to be penetrated; b. penetrating the tissue site with the needle of the device; and c. transferring material from the reservoir of the device into the tissue site.
Claim 22
Dependent Claim
53 words
A method comprising the steps of: a. placing a device of claim 1 in contact with a skin of an animal above a tissue site to be penetrated; b. penetrating the tissue site with the needle of the device; and c. transferring material from the tissue site into the reservoir of the device.
Claim 23
Independent Claim
145 words
An apparatus comprising: a. a fluid reservoir including a plunger attached to its proximal end and designed to slidingly engage an interior surface of the reservoir; b. a tissue penetrator or needle detachably engaging a first end of the reservoir; c. a solenoid having a shaft detachably engaging a top of the plunger for moving the plunger within the reservoir at a controlled rate for controlled delivery of material into or extraction of bio-material out of a tissue site; d. a power supply including associated circuitry adapted to supply electrical power to the solenoid and a switch for starting and stopping the power supply; and e. a disposable, retractable protector detachably engaging the reservoir and including a septum at its distal to protect a tip of the penetrator and adapted to engage a portion of an interior surface of the housing at its proximal end.
Claim 24
Independent Claim
145 words
An apparatus comprising: a. a fluid reservoir including a plunger attached to its proximal end and designed to slidingly engage an interior surface of the reservoir; b. a tissue penetrator or needle detachably engaging a first end of the reservoir; c. a solenoid having a shaft detachably engaging a top of the plunger for moving the plunger within the reservoir at a controlled rate for controlled delivery of material into or extraction of bio-material out of a tissue site; d. a power supply including associated circuitry adapted to supply electrical power to the solenoid and a switch for starting and stopping the power supply; and e. a disposable, retractable protector detachably engaging the reservoir and including a septum at its distal to protect a tip of the penetrator and adapted to engage a portion of an interior surface of the housing at its proximal end.
Claim 25
Dependent Claim
77 words
The apparatus of claim 21 , further comprising: f. a motor for rotating the solenoid, the plunger, the reservoir and the needle during tissue site penetration; g. a motor/solenoid coupler assembly including a coupler, a bushing and a bearing for transferring the rotational energy of the motor to the solenoid, plunger, reservoir and needle; and h. a relay circuit for automatically stopping the motor after tissue penetration after a change in motor torque and starting the solenoid.
Claim 26
Independent Claim
173 words
An apparatus comprising: a. a fluid reservoir including a plunger attached to its proximal end and designed to slidingly engage an interior surface of the reservoir; b. a tissue penetrator or needle detachably engaging a first end of the reservoir; c. a solenoid having a shaft detachably engaging a top of the plunger for moving the plunger within the reservoir at a controlled rate for controlled delivery of material into or extraction of bio-material out of a tissue site; d. a power supply including associated circuitry adapted to supply electrical power to the solenoid and a switch for starting and stopping the power supply; e. a motor for rotating the solenoid, the plunger, the reservoir and the needle during tissue site penetration; f. a motor/solenoid coupler assembly including a coupler, a bushing and a bearing for transferring the rotational energy of the motor to the solenoid, plunger, reservoir and needle; and g. a relay circuit for automatically stopping the motor after tissue penetration after a change in motor torque and starting the solenoid.
Claim 27
Independent Claim
173 words
An apparatus comprising: a. a fluid reservoir including a plunger attached to its proximal end and designed to slidingly engage an interior surface of the reservoir; b. a tissue penetrator or needle detachably engaging a first end of the reservoir; c. a solenoid having a shaft detachably engaging a top of the plunger for moving the plunger within the reservoir at a controlled rate for controlled delivery of material into or extraction of bio-material out of a tissue site; d. a power supply including associated circuitry adapted to supply electrical power to the solenoid and a switch for starting and stopping the power supply; e. a motor for rotating the solenoid, the plunger, the reservoir and the needle during tissue site penetration; f. a motor/solenoid coupler assembly including a coupler, a bushing and a bearing for transferring the rotational energy of the motor to the solenoid, plunger, reservoir and needle; and g. a relay circuit for automatically stopping the motor after tissue penetration after a change in motor torque and starting the solenoid.
Claim 28
Dependent Claim
26 words
The apparatus of claim 23 , further comprising: h. a disposable, retractable protector detachably engaging the reservoir and adapted to protect a tip of the penetrator.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-02-06 | 2004-08-07 | 2005-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-02-06 | 2008-08-07 | 2009-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-02-06 | 2012-08-07 | 2013-02-06 | $7700.00 | Window Closed / Lapsed |