US262489A - Island - Google Patents
Island Download PDFInfo
- Publication number
- US262489A US262489A US262489DA US262489A US 262489 A US262489 A US 262489A US 262489D A US262489D A US 262489DA US 262489 A US262489 A US 262489A
- Authority
- US
- United States
- Prior art keywords
- sheath
- knife
- blades
- handle
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002023 wood Substances 0.000 description 4
- 241000053208 Porcellio laevis Species 0.000 description 2
- 241000908127 Porcellio scaber Species 0.000 description 2
- 241000220010 Rhode Species 0.000 description 2
- 210000003625 Skull Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000007428 craniotomy Methods 0.000 description 2
- 229920000591 gum Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/056—Transvascular endocardial electrode systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D1/00—Surgical instruments for veterinary use
- A61D1/10—Embryotomic instruments
Definitions
- My invention relates to that class of perforators which are employed in obstetrics for performing the surgical operation known as craniotomy, and it consists in a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, by which a more effective device of this character is produced than is now in ordinary use.
- A represents the body
- B the handle
- 0 the sleeve or sheath
- D the knife or cutter
- the body is composed of two flat bars of steel, m m, equal in width, securely fastened in the handle, and arranged parallel to each other and to the section d, from which they are tapered and converge, uniting to form the solid point a. Between the bars, and extendin g from the handle to the dotted line b b, there is a piece or strip of wood, E, secured in position by the screws 0 t1, and forming a partof the body of the implement.
- the knife D is pivoted or journaled at 2 between the bars m m of the body A, and is provided with two rigid blades or cutters, G H, projecting laterally therefrom in opposite directions, as best seen in Figs. 2 and 3.
- the sheath 0 surrounds the body A and rod J, and is fitted to slide thereon longitudinally, being kept from rotating by the screw t and inner end of the rod J, which pass respectively through the elongated slots Z and h.
- the knife is shut by having its blades G H turned down between the bars m m, as shown in Fig. 1, the sheath 0 being pushed forward to cover the blade H, and held in this position by the springcatch t.
- the implement is now grasped by the handle B and forced through the cranium or skull into the head of the foetus.
- the sheath 0 is then withdrawn until its inner end strikes the handle B, when the knife D is turned or partially rotated on its axis by means of the knob and rod J, causing the blades G H to stand at right angles to the body A, as seen in Fig. 2.
- the sheath is then again pushed forward until it strikes the blade H and the shoulder or projection 19 on the knife D, where it is firmly held by the catch t.
- the implement is now rotated to the right, causing the blades to cut up or bisect the parts with which they are in contact in a manner which will be readily understood by all conversant with such matters without a more explicit description.
- the sheath 0 is then slipped back against the handle, the blades closed by the rod J, and the implement withdrawn preparatory to using a cranial tractor.
- the blades G H are so arranged 011 the body of the knife D as to revolve in difierent planes, and have their cutting-edges facing in opposite directions, as best seen in Figs. 2 and 3.
- the improved cranial perforator described consisting of the body A, terminating in the point a, and provided with the pivoted knife D, rod J, sheath 0, and handle B, constructed and arranged to operate substantially as and for the purpose specified.
Description
(No Model-J S. SLATER.
GR ANIAL PERFORATOR.
Patented Aug. 8, 1882.
Z711; Gum
wall/Ill?! I UNITED STATES PATENT OFFICE.
STEPHEN SLATER, OF NORTH SMITHFIELD, RHODE ISLAND.
CRANIAL PERFORATOR.
SPECIFICATION forming part of Letters Patent No. 262,489, dated August 8, 1882,
Application filed J nne 2, 1882. (No model.)
To all whom it may concern:
Be it known that I, STEPHEN SLATER, of North Smithtield, in the county of Providence, State of Rhode Island, have invented a certain new and useful Improvement in Cranial Perforators, of which the following is a description sufiiciently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same,reference being had to the accompanying drawings, forming a part of this specification, in which- Figure l is a side elevation, showing the perforator with the blades closed; Fig. 2, a sectional view, showing it with the blades open and a part of the sheath or case removed Fig. 3, a vertical longitudinal section, showing it with the blades closed; and Fig. 4, a transverse section taken on the line as 00, Fig. 1.
Like letters of reference. indicate corresponding parts in the different figures of the drawlugs.
My invention relates to that class of perforators which are employed in obstetrics for performing the surgical operation known as craniotomy, and it consists in a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, by which a more effective device of this character is produced than is now in ordinary use.
In the drawings, A represents the body, B the handle, 0 the sleeve or sheath, and D the knife or cutter.
The body is composed of two flat bars of steel, m m, equal in width, securely fastened in the handle, and arranged parallel to each other and to the section d, from which they are tapered and converge, uniting to form the solid point a. Between the bars, and extendin g from the handle to the dotted line b b, there is a piece or strip of wood, E, secured in position by the screws 0 t1, and forming a partof the body of the implement.
The knife D is pivoted or journaled at 2 between the bars m m of the body A, and is provided with two rigid blades or cutters, G H, projecting laterally therefrom in opposite directions, as best seen in Figs. 2 and 3.
Connected with the knife by the joint f there is a sliding rod, J, fitted to work between the bars at m and in a groove, 9, in the wood E,
the end of the rod opposite the knife being bent at right angles outwardly through the sloth in the sheath 0, and terminating in the button or knob is. The sheath 0 surrounds the body A and rod J, and is fitted to slide thereon longitudinally, being kept from rotating by the screw t and inner end of the rod J, which pass respectively through the elongated slots Z and h.
-In the use of the improvement the knife is shut by having its blades G H turned down between the bars m m, as shown in Fig. 1, the sheath 0 being pushed forward to cover the blade H, and held in this position by the springcatch t. The implement is now grasped by the handle B and forced through the cranium or skull into the head of the foetus. The sheath 0 is then withdrawn until its inner end strikes the handle B, when the knife D is turned or partially rotated on its axis by means of the knob and rod J, causing the blades G H to stand at right angles to the body A, as seen in Fig. 2. The sheath is then again pushed forward until it strikes the blade H and the shoulder or projection 19 on the knife D, where it is firmly held by the catch t. The implement is now rotated to the right, causing the blades to cut up or bisect the parts with which they are in contact in a manner which will be readily understood by all conversant with such matters without a more explicit description. The sheath 0 is then slipped back against the handle, the blades closed by the rod J, and the implement withdrawn preparatory to using a cranial tractor.
The blades G H are so arranged 011 the body of the knife D as to revolve in difierent planes, and have their cutting-edges facing in opposite directions, as best seen in Figs. 2 and 3.
Having thus explained my invention, what I claim, is
The improved cranial perforator described, the same consisting of the body A, terminating in the point a, and provided with the pivoted knife D, rod J, sheath 0, and handle B, constructed and arranged to operate substantially as and for the purpose specified.
STEPHEN SLATER.
Witnesses:
WM. H. SANDFORD, LOUIS E. REMINGTON.
Publications (1)
Publication Number | Publication Date |
---|---|
US262489A true US262489A (en) | 1882-08-08 |
Family
ID=2331765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US262489D Expired - Lifetime US262489A (en) | Island |
Country Status (1)
Country | Link |
---|---|
US (1) | US262489A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2672242A (en) * | 1949-04-14 | 1954-03-16 | Herman F Beseler | Clothesline support |
US4619260A (en) * | 1984-11-05 | 1986-10-28 | Magill John W | Tissue-retrieving means for a surgical snare instrument |
-
0
- US US262489D patent/US262489A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2672242A (en) * | 1949-04-14 | 1954-03-16 | Herman F Beseler | Clothesline support |
US4619260A (en) * | 1984-11-05 | 1986-10-28 | Magill John W | Tissue-retrieving means for a surgical snare instrument |
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