Patent US3800783A successfully refreshed from Google Patents.
Patent US6716215B1 successfully refreshed from Google Patents.
US6716215B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cranial drill with sterile barrier
Assignee: IMAGE-GUIDED NEUROLOGICS Inc DELAWARE
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Filing: 2000-10-27
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Granted: 2004-04-06
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Expires: 2020-10-27
Abstract
Abstract A medical device is provided comprising a MRI compatible cranial drill having a removable sterilizable drill bit and a sterile barrier. The sterile barrier has an interior portion, a proximal end, a distal end, a proximal opening at the proximal end and an opening at the distal end. The opening at the distal end further comprises an aperture. The drill is insertable into the proximal opening, the aperture being constructed and arranged to seal around the drill bit such that the drill is enclosed in the interior portion of the sterile barrier and only a portion of the sterile drill bit extends exteriorly of the barrier. In one embodiment, the medical device includes a MRI compatible adjustable depth stop which limits and defines depth of penetration of the drill. In one embodiment the present invention provides a method for providing access to a body of a surgical patient, which includes providing a medical device comprising in combination a MRI compatible drill and a sterile drill bit, providing a locking trajectory guide, mounting the trajectory guide on the patient's body, selecting a predetermined depth and adjusting the depth stop to the predetermined depth, advancing the medical device to the body and aligning it with the trajectory guide, utilizing the medical device to cause the sterile drill bit to penetrate the body the predetermined depth to which the depth stop is adjusted, and removing the sterile drill bit from the body. In one embodiment, the medical device includes a sterile barrier.
Inventors
- 👤 John David
- 👤 Matthew S. Solar
- 👤 Gerald W Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:43
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1613; A61B17/1622; A61B46/00; A61B46/10; A61B90/00; A61B90/05; A61B90/40; A61B17/1624; A61B17/1628; A61B17/1644; A61B17/1646; A61B17/17; A61B17/1739; A61B2017/00535; A61B2017/00553; A61B90/03; A61B2090/033
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
109 words
A medical device comprising: a drill assembly comprising in combination: a MRI compatible cranial drill; and a drill bit; and a sterile barrier having an interior portion, a proximal end, a distal end, a proximal opening at the proximal end and an opening at the distal end, the opening at the distal end further comprising a sealed aperture, the drill being insertable into the proximal opening, the sealed aperture constructed and arranged to seal around the drill bit such that the drill assembly is enclosed in the interior portion of the sterile barrier and only a portion of the drill bit extends beyond the barrier into a sterile field.
Claim 2
Dependent Claim
109 words
A medical device comprising: a drill assembly comprising in combination: a MRI compatible cranial drill; and a drill bit; and a sterile barrier having an interior portion, a proximal end, a distal end, a proximal opening at the proximal end and an opening at the distal end, the opening at the distal end further comprising a sealed aperture, the drill being insertable into the proximal opening, the sealed aperture constructed and arranged to seal around the drill bit such that the drill assembly is enclosed in the interior portion of the sterile barrier and only a portion of the drill bit extends beyond the barrier into a sterile field.
Claim 3
Dependent Claim
16 words
The medical device of claim 1 wherein the sterile barrier comprises a bag made of plastic.
Claim 4
Dependent Claim
17 words
The medical device of claim 1 wherein the drill bit is sterile and the drill is nonsterile.
Claim 5
Dependent Claim
21 words
The medical device of claim 1 wherein the MRI compatible cranial drill is an air or compressed gas powered bone drill.
Claim 6
Dependent Claim
11 words
The medical device of claim 4 wherein the drill is disposable.
Claim 7
Dependent Claim
13 words
The medical device of claim 4 wherein the drill is re-sterilizable and reusable.
Claim 8
Dependent Claim
18 words
The medical device of claim 1 or claim 4 , further comprising a skull mounted locking trajectory guide.
Claim 9
Dependent Claim
27 words
The medical device of claim 1 or claim 4 further comprising a MRI compatible adjustable depth stop whereby the depth of penetration of the drill is controlled.
Claim 10
Dependent Claim
16 words
The medical device of claim 8 wherein the depth stop includes at least two depth positions.
Claim 11
Dependent Claim
17 words
The medical device of claim 8 wherein the depth stop does not rotate with the drill bit.
Claim 12
Dependent Claim
21 words
The medical device of claim 8 wherein the adjustable depth stop is constructed and arranged to provide a first predetermined depth.
Claim 13
Dependent Claim
23 words
The medical device of claim 1 wherein the adjustable depth stop is constructed and arranged to provide at least one additional predetermined depth.
Claim 14
Dependent Claim
15 words
The medical device of claim 8 wherein the adjustable depth stop includes an adjustable screw.
Claim 15
Dependent Claim
44 words
The medical device of claim 8 wherein the adjustable depth stop includes a spring mounted clip having teeth shaped to mate with a plurality of serrations located on the drill bit, each serration corresponding to a predetermined depth and indicating relative depth stop position.
Claim 16
Dependent Claim
15 words
The medical device of claim 8 wherein the adjustable depth stop includes a button ratchet.
Claim 17
Dependent Claim
15 words
The medical device of claim 8 wherein the adjustable depth stop includes a collet lock.
Claim 18
Dependent Claim
14 words
The medical device of claim 1 wherein the drill bit is sterilizable and reusable.
Claim 19
Dependent Claim
12 words
The medical device of claim 1 wherein the drill bit is disposable.
Claim 20
Dependent Claim
16 words
The medical device of claim 1 at least a portion of which is made nonmagnetic plastic.
Claim 21
Dependent Claim
97 words
A sterile barrier having an interior portion, a proximal end, a distal end, a proximal opening at the proximal end and an opening at the distal end, the opening at the distal end further comprising a sealed aperture, the sterile barrier constructed and arranged to enclose a medical device that includes a drill, such that the drill is enclosed in the interior portion of the sterile barrier and only a portion of a drill bit extends exteriorly of the barrier, and wherein the aperture includes a member that is sized and shaped to engage the medical device.
Claim 22
Dependent Claim
97 words
A sterile barrier having an interior portion, a proximal end, a distal end, a proximal opening at the proximal end and an opening at the distal end, the opening at the distal end further comprising a sealed aperture, the sterile barrier constructed and arranged to enclose a medical device that includes a drill, such that the drill is enclosed in the interior portion of the sterile barrier and only a portion of a drill bit extends exteriorly of the barrier, and wherein the aperture includes a member that is sized and shaped to engage the medical device.
Claim 23
Independent Claim
192 words
A method for providing access to a site within a body of a surgical patient, the method comprising: providing a medical device comprising in combination: a MRI compatible drill; a sterile drill bit; and a sterile barrier having an interior portion, a proximal end, a distal end, a proximal opening at the proximal end and an opening at the distal end, the opening at the distal end further comprising a sealed aperture, the drill being insertable into the proximal opening, the sealed aperture constructed and arranged to seal around the drill bit such that the drill is enclosed in the interior portion of the sterile barrier and only a portion of the drill bit extends exteriorly of the barrier; providing a locking trajectory guide; mounting the trajectory guide on the patient's body; selecting a predetermined depth and adjusting a depth stop to the predetermined depth; advancing the medical device to the body and aligning it with the trajectory guide; utilizing the medical device to cause the sterile drill bit to penetrate the body the predetermined depth to which the depth stop is adjusted; and removing the sterile drill bit from the body.
Claim 24
Independent Claim
192 words
A method for providing access to a site within a body of a surgical patient, the method comprising: providing a medical device comprising in combination: a MRI compatible drill; a sterile drill bit; and a sterile barrier having an interior portion, a proximal end, a distal end, a proximal opening at the proximal end and an opening at the distal end, the opening at the distal end further comprising a sealed aperture, the drill being insertable into the proximal opening, the sealed aperture constructed and arranged to seal around the drill bit such that the drill is enclosed in the interior portion of the sterile barrier and only a portion of the drill bit extends exteriorly of the barrier; providing a locking trajectory guide; mounting the trajectory guide on the patient's body; selecting a predetermined depth and adjusting a depth stop to the predetermined depth; advancing the medical device to the body and aligning it with the trajectory guide; utilizing the medical device to cause the sterile drill bit to penetrate the body the predetermined depth to which the depth stop is adjusted; and removing the sterile drill bit from the body.
Claim 25
Dependent Claim
26 words
The method of claim 21 wherein the medical device further comprises an adjustable depth stop whereby the depth of penetration of the drill bit is controlled.
Claim 26
Independent Claim
210 words
A method for providing access to a brain of a surgical patient, the method comprising: providing a medical device comprising in combination: a MRI compatible cranial drill having a removable sterile drill bit and an adjustable depth stop whereby the depth of penetration of the drill bit is controlled; and a sterile barrier having an interior portion, a proximal end, a distal end, a proximal opening at the proximal end and an opening at the distal end, the opening at the distal end further comprising a sealed aperture, the drill being insertable into the proximal opening, the sealed aperture constructed and arranged to seal around the drill bit such that the drill is enclosed in the interior portion of the sterile barrier and only a portion of the drill bit extends exteriorly of the barrier; providing a skull mounted locking trajectory guide; mounting the trajectory guide on the patient's skull; selecting a predetermined depth and adjusting the depth stop to the predetermined depth; advancing the medical device to the skull and aligning it with the trajectory guide; utilizing the medical device to cause the sterile drill bit to penetrate the skull the predetermined depth to which the depth stop is adjusted; and removing the sterile drill bit from the skull.
Claim 27
Independent Claim
210 words
A method for providing access to a brain of a surgical patient, the method comprising: providing a medical device comprising in combination: a MRI compatible cranial drill having a removable sterile drill bit and an adjustable depth stop whereby the depth of penetration of the drill bit is controlled; and a sterile barrier having an interior portion, a proximal end, a distal end, a proximal opening at the proximal end and an opening at the distal end, the opening at the distal end further comprising a sealed aperture, the drill being insertable into the proximal opening, the sealed aperture constructed and arranged to seal around the drill bit such that the drill is enclosed in the interior portion of the sterile barrier and only a portion of the drill bit extends exteriorly of the barrier; providing a skull mounted locking trajectory guide; mounting the trajectory guide on the patient's skull; selecting a predetermined depth and adjusting the depth stop to the predetermined depth; advancing the medical device to the skull and aligning it with the trajectory guide; utilizing the medical device to cause the sterile drill bit to penetrate the skull the predetermined depth to which the depth stop is adjusted; and removing the sterile drill bit from the skull.
Claim 28
Dependent Claim
24 words
The barrier of claim 20 , wherein the aperture further includes an O-ring that is sized and shaped to seal around the drill bit.
Claim 29
Dependent Claim
98 words
A sterile barrier having an interior portion, a proximal end, a distal end, a proximal opening at the proximal end and an opening at the distal end, the opening at the distal end further comprising a sealed aperture, the sterile barrier constructed and arranged to enclose a medical device that includes a drill, such that the drill is enclosed in the interior portion of the sterile barrier and only a portion of a drill bit extends exteriorly of the barrier, and wherein the aperture includes an O-ring that is sized and shaped to seal around the drill bit.
Claim 30
Dependent Claim
98 words
A sterile barrier having an interior portion, a proximal end, a distal end, a proximal opening at the proximal end and an opening at the distal end, the opening at the distal end further comprising a sealed aperture, the sterile barrier constructed and arranged to enclose a medical device that includes a drill, such that the drill is enclosed in the interior portion of the sterile barrier and only a portion of a drill bit extends exteriorly of the barrier, and wherein the aperture includes an O-ring that is sized and shaped to seal around the drill bit.
References Cited (Backward Citations)
US1539253A
Cited
US3955284A
Cited
US4456010A
Cited
US4830001A
Cited
US4795343A
Cited
US5269733A
Cited
US5380333A
Cited
US5728106A
Cited
US5590655A
Cited
US5865571A
Cited
US5868750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-04-06 | 2007-10-06 | 2008-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-04-06 | 2011-10-06 | 2012-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-04-06 | 2015-10-06 | 2016-04-06 | $7700.00 | Window Closed / Lapsed |