US4616635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical instrument for the splaying of wound edges
Assignee: Aesculap Werke AG
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Filing: 1985-04-04
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Granted: 1986-10-14
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Expires: 2005-04-04
Abstract
Abstract An instrument for the splaying of the edges of a wound which has at least one blade. The blade has a middle part, a rim projecting at right angles from the middle part, and a mount on which the middle part is held. The middle part has two parts movable against each other by an actuator comprising a turnable rod with a screw thread section.
Inventors
- 👤 Wolfhard Caspar
- 👤 Theodor Lutze
- 👤 Theodor Schwarz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:02
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
193 words
Surgical instrument for the splaying of the edges of a wound comprising at least one blade for placement on said edges having a blade shaped middle part, a rim projecting at right angles opposite the middle part, and a mount on which the blade is held at the end of the middle part opposite the projecting rim, said middle part comprising two parts which are movable against each other, of which one is held on the mount and the other carries the projecting rim, and an actuator that moves said two parts relative to each other and fixes them in different relative positions to each other so that different lengths of the middle part and these different spacings of the projecting rim result, said actuator comprising a turnable rod with a screw thread section, a guide part with a screw thread complementary to the screw threads of the rod, and an abutment, whereby the guide part and the abutment are placed at different parts of the middle part and guide and hold the rod parallel to the movement direction, said rod being turnable for adjustment of said instrument from outside of the wound.
Claim 2
Dependent Claim
193 words
Surgical instrument for the splaying of the edges of a wound comprising at least one blade for placement on said edges having a blade shaped middle part, a rim projecting at right angles opposite the middle part, and a mount on which the blade is held at the end of the middle part opposite the projecting rim, said middle part comprising two parts which are movable against each other, of which one is held on the mount and the other carries the projecting rim, and an actuator that moves said two parts relative to each other and fixes them in different relative positions to each other so that different lengths of the middle part and these different spacings of the projecting rim result, said actuator comprising a turnable rod with a screw thread section, a guide part with a screw thread complementary to the screw threads of the rod, and an abutment, whereby the guide part and the abutment are placed at different parts of the middle part and guide and hold the rod parallel to the movement direction, said rod being turnable for adjustment of said instrument from outside of the wound.
Claim 3
Dependent Claim
18 words
Instrument according to claim 1, wherein the two parts of the middle part lie squarely against each other.
Claim 4
Dependent Claim
22 words
Instrument according to claim 1 or 2 wherein the two parts of the middle part are arched diagonally to their adjustment direction.
Claim 5
Dependent Claim
32 words
Instrument according to claim 1 wherein at least one longitudinal slit is placed in one of the two parts into which at least one guide element held at the other part projects.
Claim 6
Dependent Claim
47 words
Instrument according to claim 4, wherein the guide element is adjustable in its spacing from the other part between a clamping setting in which the two parts are tightly pressed against each other and a release setting in which the two parts are movable toward each other.
Claim 7
Dependent Claim
18 words
Instrument according to claim 5, wherein the guide element is a locking screw screwed into the other part.
Claim 8
Dependent Claim
30 words
Instrument according to claim 5 or 6, wherein two parallel longitudinal slits are placed into the one part and that two guide elements (10, 11) project into every longitudinal slit.
Claim 9
Dependent Claim
35 words
Instrument according to claim 1, wherein the guide part is held at the part carrying the projecting rim and that the abutment is placed at the part fixed on the mount of the middle part.
Claim 10
Dependent Claim
13 words
Instrument according to claim 8, wherein the rod is protected by a covering.
Claim 11
Dependent Claim
18 words
Instrument according to claim 1 wherein the rod has a hexagon socket at the end toward the mount.
Claim 12
Dependent Claim
21 words
Instrument according to claim 1 wherein the middle part is secured by a rod against turning with reference to the mount.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |