US9320535B2
Active / In Force
US
⏱️ 5.1 years remaining
Tissue removal system with retention mechanism
Assignee: Expanding Innovations Inc
•
Filing: 2011-11-15
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Granted: 2016-04-26
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Expires: 2031-11-15
Abstract
Abstract Systems and methods for minimally invasive discectomy procedures are described herein. In some variations, a tissue removal system may comprise a handheld housing, an outer shaft comprising a distal portion and a proximal portion coupled to the handheld housing, a distal sheath coupled to the distal portion of the outer shaft, a motor, an inner shaft coupled to the motor, where the inner shaft is located partially within the outer shaft and partially within the distal sheath, a tip portion coupled to a distal portion of the inner shaft, and an elongate member distally extending through a distal opening of the inner shaft, the elongate member having a retracted configuration and an extended configuration, where the distal sheath comprises at least one element (e.g. at least one protrusion) that engages the tip portion to couple the tip portion to the distal sheath.
Inventors
- 👤 Gary D. Zaretzka
- 👤 Myra I. L. Fabro
- 👤 Stewart Kume
- 👤 John To
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:30
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61B17/3205; A61B17/3207; A61B17/320725; A61B17/320783; A61B17/00234; A61B2017/00238; A61B2017/00261; A61B2017/00367; A61B2017/00398; A61B17/22; A61B2017/22038; A61B2017/22079; A61B2017/320733; A61B17/320758; A61B2017/320775
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
179 words
A tissue removal system, comprising: a handheld housing; an outer shaft comprising a distal portion and a proximal portion, the proximal portion coupled to the handheld housing; a distal sheath coupled to the distal portion of the outer shaft; a motor; an inner shaft including a lumen having a distal opening, the inner shaft coupled to the motor, the inner shaft being located partially within the outer shaft and partially within the distal sheath, the distal sheath including a cylindrical portion extending circumferentially about the inner shaft; a tip portion having a proximal end, a side opening, and a lumen extending therebetween, the tip portion coupled to a distal portion of the inner shaft; and an elongate member slidably coupled to the lumen of the inner shaft and the lumen of the tip portion, the elongate member configured to slidably extend through the tip portion, the elongate member having a retracted configuration and an extended configuration, wherein the distal sheath comprises at least one element that engages the tip portion to couple the tip portion to the distal sheath.
Claim 2
Dependent Claim
179 words
A tissue removal system, comprising: a handheld housing; an outer shaft comprising a distal portion and a proximal portion, the proximal portion coupled to the handheld housing; a distal sheath coupled to the distal portion of the outer shaft; a motor; an inner shaft including a lumen having a distal opening, the inner shaft coupled to the motor, the inner shaft being located partially within the outer shaft and partially within the distal sheath, the distal sheath including a cylindrical portion extending circumferentially about the inner shaft; a tip portion having a proximal end, a side opening, and a lumen extending therebetween, the tip portion coupled to a distal portion of the inner shaft; and an elongate member slidably coupled to the lumen of the inner shaft and the lumen of the tip portion, the elongate member configured to slidably extend through the tip portion, the elongate member having a retracted configuration and an extended configuration, wherein the distal sheath comprises at least one element that engages the tip portion to couple the tip portion to the distal sheath.
Claim 3
Dependent Claim
26 words
The system of claim 1 , wherein the at least one element comprises at least one protrusion extending from an inner surface of the distal sheath.
Claim 4
Dependent Claim
17 words
The system of claim 2 , wherein the at least one protrusion comprises a plurality of protrusions.
Claim 5
Dependent Claim
15 words
The system of claim 3 , wherein the at least one protrusion comprises four protrusions.
Claim 6
Dependent Claim
24 words
The system of claim 1 , wherein the coupling between the tip portion and the distal sheath defines at least one aspiration port therebetween.
Claim 7
Dependent Claim
24 words
The system of claim 5 , wherein the coupling between the tip portion and the distal sheath defines a plurality of aspiration ports therebetween.
Claim 8
Dependent Claim
20 words
The system of claim 1 , wherein the distal sheath comprises a wall portion having at least one aperture therethrough.
Claim 9
Dependent Claim
16 words
The system of claim 7 , wherein the wall portion has a plurality of apertures therethrough.
Claim 10
Dependent Claim
14 words
The system of claim 8 , wherein the wall portion has two apertures therethrough.
Claim 11
Dependent Claim
16 words
The system of claim 1 , further comprising a stop member coupled to the tip portion.
Claim 12
Dependent Claim
12 words
The system of claim 1 , further comprising a tissue transport assembly.
Claim 13
Dependent Claim
24 words
The system of claim 11 , wherein the tissue transport assembly comprises the inner shaft and a helical member coupled to the inner shaft.
Claim 14
Dependent Claim
24 words
The system of claim 11 , wherein the tissue transport assembly comprises the inner shaft and a helical member integral with the inner shaft.
Claim 15
Dependent Claim
161 words
A tissue removal system, comprising: a handheld housing; an outer shaft comprising a distal portion and a proximal portion coupled to the handheld housing; a distal sheath coupled to the distal portion of the outer shaft; a motor; an inner shaft including a lumen having a distal opening, the inner shaft coupled to the motor, the inner shaft being located partially within the outer shaft and partially within the distal sheath, the distal sheath including a cylindrical portion extending circumferentially about the inner shaft; a tip portion having a proximal end a side openg and a lumen extending therebetween the tip portion coupled to a distal portion of the inner shaft; a stop member coupled to the tip portion; and an elongate member slidably coupled to the lumen of the inner shaft and the lumen of the tip portion, the elongate member configured to slidably extend through the tip portion, the elongate member having a retracted configuration and an extended configuration.
Claim 16
Dependent Claim
161 words
A tissue removal system, comprising: a handheld housing; an outer shaft comprising a distal portion and a proximal portion coupled to the handheld housing; a distal sheath coupled to the distal portion of the outer shaft; a motor; an inner shaft including a lumen having a distal opening, the inner shaft coupled to the motor, the inner shaft being located partially within the outer shaft and partially within the distal sheath, the distal sheath including a cylindrical portion extending circumferentially about the inner shaft; a tip portion having a proximal end a side openg and a lumen extending therebetween the tip portion coupled to a distal portion of the inner shaft; a stop member coupled to the tip portion; and an elongate member slidably coupled to the lumen of the inner shaft and the lumen of the tip portion, the elongate member configured to slidably extend through the tip portion, the elongate member having a retracted configuration and an extended configuration.
Claim 17
Dependent Claim
18 words
The system of claim 14 , wherein the stop member surrounds an outer surface of the tip portion.
Claim 18
Dependent Claim
12 words
The system of claim 15 , wherein the stop member is annular.
Claim 19
Dependent Claim
12 words
The system of claim 16 , wherein the stop member is beveled.
Claim 20
Dependent Claim
12 words
The system of claim 14 , further comprising a tissue transport assembly.
Claim 21
Dependent Claim
24 words
The system of claim 18 , wherein the tissue transport assembly comprises the inner shaft and a helical member coupled to the inner shaft.
Claim 22
Dependent Claim
24 words
The system of claim 18 , wherein the tissue transport assembly comprises the inner shaft and a helical member integral with the inner shaft.
Claim 23
Dependent Claim
181 words
A tissue removal system, comprising: a handheld housing; an outer shaft comprising a distal portion and a proximal portion coupled to the handheld housing; a distal sheath coupled to the distal portion of the outer shaft; a motor; an inner shaft including a lumen having a distal opening, the inner shaft coupled to the motor, the inner shaft being located partially within the outer shaft and partially within the distal sheath, the distal sheath including a cylindrical portion extending circumferentially about the inner shaft; a tip portion having a proximal end, a side opening, and a lumen extending therebetween, the tip portion coupled to a distal portion of the inner shaft, the tip portion including a stop member; an elongate member slidably coupled to the lumen of the inner shaft and the lumen of the tip portion, the elongate member configured to slidably extend through the side opening of the tip portion, the elongate member having a retracted configuration and an extended configuration, wherein the stop member of the tip portion is configured to limit proximal movement by the inner shaft.
Claim 24
Dependent Claim
181 words
A tissue removal system, comprising: a handheld housing; an outer shaft comprising a distal portion and a proximal portion coupled to the handheld housing; a distal sheath coupled to the distal portion of the outer shaft; a motor; an inner shaft including a lumen having a distal opening, the inner shaft coupled to the motor, the inner shaft being located partially within the outer shaft and partially within the distal sheath, the distal sheath including a cylindrical portion extending circumferentially about the inner shaft; a tip portion having a proximal end, a side opening, and a lumen extending therebetween, the tip portion coupled to a distal portion of the inner shaft, the tip portion including a stop member; an elongate member slidably coupled to the lumen of the inner shaft and the lumen of the tip portion, the elongate member configured to slidably extend through the side opening of the tip portion, the elongate member having a retracted configuration and an extended configuration, wherein the stop member of the tip portion is configured to limit proximal movement by the inner shaft.
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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) | 2019-04-26 | 2019-10-26 | 2020-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2023-04-26 | 2023-10-26 | 2024-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2027-04-26 | 2027-10-26 | 2028-04-26 | $7700.00 | Pending Window |