US5817062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trocar
Assignee: Heartport Inc
•
Filing: 1996-06-27
•
Granted: 1998-10-06
•
Expires: 2016-06-27
Abstract
Abstract A thoracic trocar having a deflectable member. The deflectable member has a frustoconical outer surface and is movable between first and second positions. The outer surface is angled toward the distal end in the first position and angled toward the proximal end in the second position. The first and second positions are both stable, unbiased positions and the deflectable member is movable from the first position to the second position upon application of the necessary force.
Inventors
- 👤 James R. Flom
- 👤 Pinaki Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:47
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3417; A61B2017/3419; A61B2017/348; A61B2017/3482; A61B2017/3484; A61B2017/349; A61B2017/3492
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
183 words
A device used for introducing a surgical instrument into a patient, comprising: a body having a proximal end and a distal end; an instrument delivery lumen extending through the body; and a deflectable member coupled to the body and being made of an elastomeric material, the deflectable member having an outer surface which is angled toward the distal end of the body when the deflectable member is in a first, unbiased position, the deflectable member also having a free end and an attachment end which is coupled to the body, the free end extending around the instrument delivery lumen and being spaced apart from the body when the deflectable member is in the first position, the deflectable member being deflectable from the first position to a second position, the free end being positioned nearer the proximal end than the attachment end when in the first position and being positioned further from the proximal end than the attachment end when in the second position, the deflectable member having an inner surface opposite the outer surface, the inner and outer surfaces having a frustoconical shape.
Claim 2
Independent Claim
183 words
A device used for introducing a surgical instrument into a patient, comprising: a body having a proximal end and a distal end; an instrument delivery lumen extending through the body; and a deflectable member coupled to the body and being made of an elastomeric material, the deflectable member having an outer surface which is angled toward the distal end of the body when the deflectable member is in a first, unbiased position, the deflectable member also having a free end and an attachment end which is coupled to the body, the free end extending around the instrument delivery lumen and being spaced apart from the body when the deflectable member is in the first position, the deflectable member being deflectable from the first position to a second position, the free end being positioned nearer the proximal end than the attachment end when in the first position and being positioned further from the proximal end than the attachment end when in the second position, the deflectable member having an inner surface opposite the outer surface, the inner and outer surfaces having a frustoconical shape.
Claim 3
Dependent Claim
14 words
The device of claim 1, wherein: the second position is a stable, unbiased position.
Claim 4
Dependent Claim
19 words
The device of claim 2, wherein: the outer surface of the deflectable member extends around the instrument delivery lumen.
Claim 5
Dependent Claim
31 words
The device of claim 1, wherein: the deflectable member is configured to deflect from the first position to the second position upon application of a force between 2 and 5 lbs.
Claim 6
Dependent Claim
16 words
The device of claim 1, wherein: the body includes a helical thread on an exterior surface.
Claim 7
Dependent Claim
24 words
The device of claim 1, further comprising: a removable obturator extending through the instrument delivery lumen and beyond the distal end of the body.
Claim 8
Dependent Claim
29 words
The device of claim 1, further comprising: a clamp coupled to the body, the clamp being configured to clamp a body structure between the deflectable member and the clamp.
Claim 9
Dependent Claim
24 words
The device of claim 1, wherein: the outer surface is angled toward the proximal end when the deflectable member is in the second position.
Claim 10
Independent Claim
179 words
A device used for introducing a surgical instrument into a patient, comprising: a body having a proximal end and a distal end; an instrument delivery lumen extending through the body; and a deflectable member coupled to the body and being made of an elastomeric material, the deflectable member having an outer surface which is angled toward the distal end of the body when the deflectable member is in a first, unbiased position, the deflectable member also having a free end and an attachment end which is coupled to the body, the free end extending around the instrument delivery lumen and being spaced apart from the body when the deflectable member is in the first position, the deflectable member being deflectable from the first position to a second position, the free end being positioned nearer the proximal end than the attachment end when in the first position and being positioned further from the proximal end than the attachment end when in the second position; the body including an elastomeric sheath; the deflectable member being integrally formed with the elastomeric sheath.
Claim 11
Independent Claim
179 words
A device used for introducing a surgical instrument into a patient, comprising: a body having a proximal end and a distal end; an instrument delivery lumen extending through the body; and a deflectable member coupled to the body and being made of an elastomeric material, the deflectable member having an outer surface which is angled toward the distal end of the body when the deflectable member is in a first, unbiased position, the deflectable member also having a free end and an attachment end which is coupled to the body, the free end extending around the instrument delivery lumen and being spaced apart from the body when the deflectable member is in the first position, the deflectable member being deflectable from the first position to a second position, the free end being positioned nearer the proximal end than the attachment end when in the first position and being positioned further from the proximal end than the attachment end when in the second position; the body including an elastomeric sheath; the deflectable member being integrally formed with the elastomeric sheath.
Claim 12
Independent Claim
261 words
A method of providing an instrument delivery path into a patient comprising the steps of: providing a trocar including a body having a deflectable member and an instrument delivery lumen, the deflectable member being movable between a first position and a second position, the first position being a stable unbiased position, the deflectable member being movable from the first position to the second position upon application of a deflecting force to the deflectable member, the deflectable member having a free end and an attachment end, the attachment end being coupled to the body and the free end being spaced apart from the body, the free end being positioned closer to the proximal end than the attachment end when the deflectable member is in the first position and the free end being positioned further from the proximal end than the attachment end when the deflectable member is in the second position; inserting the trocar into the patient thereby forming an opening in the patient the deflectable member being in the first position after being inserted into the patient so that withdrawal of the trocar is resisted by the free end contacting the patient; introducing an instrument into the patient through the instrument delivery lumen; removing the instrument from the instrument delivery lumen; and removing the trocar from the patient after the instrument removing step, the trocar removing step being carried out so that the free end engages the patient and the deflecting force is exerted on the deflectable member to move the deflectable member from the first position toward the second position.
Claim 13
Independent Claim
261 words
A method of providing an instrument delivery path into a patient comprising the steps of: providing a trocar including a body having a deflectable member and an instrument delivery lumen, the deflectable member being movable between a first position and a second position, the first position being a stable unbiased position, the deflectable member being movable from the first position to the second position upon application of a deflecting force to the deflectable member, the deflectable member having a free end and an attachment end, the attachment end being coupled to the body and the free end being spaced apart from the body, the free end being positioned closer to the proximal end than the attachment end when the deflectable member is in the first position and the free end being positioned further from the proximal end than the attachment end when the deflectable member is in the second position; inserting the trocar into the patient thereby forming an opening in the patient the deflectable member being in the first position after being inserted into the patient so that withdrawal of the trocar is resisted by the free end contacting the patient; introducing an instrument into the patient through the instrument delivery lumen; removing the instrument from the instrument delivery lumen; and removing the trocar from the patient after the instrument removing step, the trocar removing step being carried out so that the free end engages the patient and the deflecting force is exerted on the deflectable member to move the deflectable member from the first position toward the second position.
Claim 14
Dependent Claim
30 words
The method of claim 10, further comprising the step of: positioning an obturator in the instrument delivery lumen before the inserting step; and removing the obturator before the introducing step.
Claim 15
Dependent Claim
33 words
The method of claim 10, wherein: the trocar removing step being carried out so that the deflecting force is between 2 to 5 lbs to move the deflectable member to the second position.
Claim 16
Dependent Claim
27 words
The method of claim 10, further comprising the step of: clamping a body structure between the deflectable member and a clamp which is coupled to the body.
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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) | 2001-10-05 | 2002-04-06 | 2002-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-05 | 2006-04-06 | 2006-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-05 | 2010-04-06 | 2010-10-06 | $7700.00 | Window Closed / Lapsed |