US6383190B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure applicator
Assignee: Neurotherm LLC
•
Filing: 1999-09-30
•
Granted: 2002-05-07
•
Expires: 2019-09-30
Abstract
Abstract A pressure applicator for applying pressure to a flowable implant material, e.g., PMMA. A pressure applicator or driver includes a pair of columns which are engageable with one another, preferably by threads to generate a driving pressure. A handle is provided for the operator to grasp and steady the device as he turns the handle to apply pressure to the implantable material within the applicator. A luer-lock or other connecting device is provided for attaching the applicator to a cannula (or a connecting conduit that in turns connects with a cannula) that will deliver the implant material to the desired site. Pressures of about 1000-3000 psi may be generated by this device.
Inventors
- 👤 Howard E. Preissman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:15
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/8802; A61B17/8805; A61B17/8819; A61B17/8822; A61B17/8833; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4601; A61B17/8816; A61F2/44; A61F2/4603; A61F2002/4677
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
114 words
A method of preparing a high pressure applicator for driving the delivery of a flowable tissue implant material for use, said method comprising: providing an applicator having a first column having an inner wall, an outer wall, a first open end and a second substantially closed end having an orifice therethrough, and a second column drivably engageable with the first column to generate a pressure within the first column; loading the first column with flowable tissue implant material; engaging the second column with the first column to enclose the tissue implant material; and advancing the second column toward the first column to generate a pressure for driving the flowable tissue material through the orifice.
Claim 2
Independent Claim
114 words
A method of preparing a high pressure applicator for driving the delivery of a flowable tissue implant material for use, said method comprising: providing an applicator having a first column having an inner wall, an outer wall, a first open end and a second substantially closed end having an orifice therethrough, and a second column drivably engageable with the first column to generate a pressure within the first column; loading the first column with flowable tissue implant material; engaging the second column with the first column to enclose the tissue implant material; and advancing the second column toward the first column to generate a pressure for driving the flowable tissue material through the orifice.
Claim 3
Dependent Claim
46 words
The method of claim 1 , wherein the second column includes a plunger adapted to form a pressure seal with the inner wall of the first column and said engaging the second column with the first column comprises introducing the plunger into the tissue implant material.
Claim 4
Dependent Claim
51 words
The method of claim 1 , wherein said advancing the second column toward the first column to generate a pressure for driving the flowable tissue material through the orifice comprises generating a high pressure of at least 1000 psi, said applicator containing at least 5 cc of tissue implant material therein.
Claim 5
Dependent Claim
40 words
The method of claim 1 , further comprising connecting a substantially noncompliant tube to the orifice prior to said advancing the second column toward the first column to generate a pressure for driving the flowable tissue material through the orifice.
Claim 6
Dependent Claim
47 words
The method of claim 1 , further comprising connecting a substantially non-compliant tube after said advancing the second column toward the first column to generate a pressure for driving the flowable tissue material through the orifice, thereby purging the orifice prior to connecting the substantially noncompliant tube.
Claim 7
Dependent Claim
31 words
The method of claim 1 , wherein said loading comprises slightly overfilling the first column with the implant material to form a meniscus created by surface tension of the implant material.
Claim 8
Dependent Claim
20 words
The method of claim 4 , further comprising prefilling the substantially noncompliant tube prior to said connecting to the orifice.
Claim 9
Dependent Claim
13 words
The method of claim 7 , wherein said prefilling comprises prefilling with saline.
Claim 10
Dependent Claim
16 words
The method of claim 8 , wherein said prefilling comprises prefilling with the tissue implant material.
Claim 11
Dependent Claim
20 words
The method of claim 5 , further comprising prefilling the substantially noncompliant tube prior to said connecting to the orifice.
Claim 12
Dependent Claim
13 words
The method of claim 10 , wherein said prefilling comprises prefilling with saline.
Claim 13
Dependent Claim
16 words
The method of claim 10 , wherein said prefilling comprises prefilling with the tissue implant material.
Claim 14
Dependent Claim
30 words
The method of claim 6 , wherein said engaging further comprises introducing a plunger element into the implant material and then driving the plunger via said advancing the second column.
Claim 15
Independent Claim
69 words
A method of preparing a high pressure applicator for driving the delivery of a flowable tissue implant material for use, said method comprising: providing an applicator containing at least 5 cc of tissue implant material therein; and actuating the applicator to generate an internal pressure of at least 1000 psi and to provide a substantially even driving force to force a flow of the implant material from the applicator.
Claim 16
Independent Claim
69 words
A method of preparing a high pressure applicator for driving the delivery of a flowable tissue implant material for use, said method comprising: providing an applicator containing at least 5 cc of tissue implant material therein; and actuating the applicator to generate an internal pressure of at least 1000 psi and to provide a substantially even driving force to force a flow of the implant material from the applicator.
Claim 17
Dependent Claim
18 words
The method of claim 14 , wherein said actuating generates an internal pressure of at least 1500 psi.
Claim 18
Dependent Claim
18 words
The method of claim 15 , wherein said actuating generates an internal pressure of at least 2000 psi.
Claim 19
Dependent Claim
18 words
The method of claim 16 , wherein said actuating generates an internal pressure of at least 2500 psi.
Claim 20
Dependent Claim
19 words
The method of claim 17 , wherein said actuating generates an internal pressure of up to about 3000 psi.
Claim 21
Dependent Claim
30 words
The method of claim 14 wherein said actuating comprises torquing a first portion of said applicator with respect to a second portion of said applicator to generate said driving force.
Claim 22
Dependent Claim
25 words
The method of claim 19 , wherein said providing an applicator comprises providing an applicator containing at least 7.5 cc of tissue implant material therein.
Claim 23
Dependent Claim
26 words
The method of claim 20 , wherein said providing an applicator comprises providing an applicator containing up to about 9 cc of tissue implant material therein.
Claim 24
Dependent Claim
26 words
The method of claim 21 , wherein said providing an applicator comprises providing an applicator containing up to about 15 cc of tissue implant material therein.
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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) | 2005-05-06 | 2005-11-05 | 2006-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-05-06 | 2009-11-05 | 2010-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-05-06 | 2013-11-05 | 2014-05-07 | $7700.00 | Window Closed / Lapsed |