Tissue penetrating device and methods for using same
First Claim
Patent Images
1. 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.
3 Assignments
0 Petitions
Accused Products
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.
-
Citations
24 Claims
-
1. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 19, 20)
i. a second solenoid for controlling needle penetration speed and depth; and
j. a second switch for starting and stopping the second solenoid.
-
-
3. 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.
-
-
4. The device of claim 1, wherein the needle including a tip having two cutting surface and two non-cutting surfaces.
-
5. 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.
-
6. 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°
.
- and greater than 0°
-
7. The device of claim 6, wherein the acute angle is between about 80°
- and about 10°
.
- and about 10°
-
8. The device of claim 6, wherein the acute angle is between about 80°
- and about 50°
.
- and about 50°
-
9. The device of claim 6, wherein the acute angle is between about 80°
- and about 60°
.
- and about 60°
-
10. The device of claim 6, wherein the acute angle is about 70°
- .
-
19. 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.
-
-
20. 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.
-
-
11. 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. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
-
21. 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. - View Dependent Claims (22)
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.
-
-
23. 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. - View Dependent Claims (24)
h. a disposable, retractable protector detachably engaging the reservoir and adapted to protect a tip of the penetrator.
-
Specification