US1423866A - Bone resector - Google Patents

Description

F. E. MILLE R BONE RESECTOR.

. APPLICATION FILED APR.24, I918- RENEWED DEC. 22,1921. 1,423,866.

Patented July'25, 22.

INVEIVTOR.

YgQ ORNE Y ire. srerss amine MILLER, or YORK, n. Y.-

' sons Resection.

Specification of Letters Patent.

Patented July 25, 19 22.

Application filed April 24, ieiaseriai in. '23o;421. RenWedDecemberQQ, 1921. Serial 52412925.

To(ZZZ10720721712?maycmwem:

Be it known that I, FRANK "E. MILLER, a citizen of the United States, and a resident of New York city, county 3 and State of New York, have invented a certain new and useful Bone Resect'or, set forth in the following specification;

This invention relates to surgical instruments. The object of the invention is to produce a resecto'r suitable for the correction of septal deviation without resort to any cutting and removal either of the bony structure or of the mucous covering.

I have found from my experience and observation that, in a large measure, the many operations on the septum that are being practiced, deform the nose and destroy acoustical balance and many times create a dry, catarrhal condition besides from malposition forming adhesions.

The instrument which I have produced is serviceable in severing a warped or malformed septum, so far as its bony structure is concerned, but without injuring the mucous covering.

In carrying out my desired construction I propose to provide a pair of bluntedged operating wedge-shaped members constrained to move in slightly separated parallel planes and combined with means whereby a powerful shearing action may be imparted to the said members.

The above will better be understood by reference to the following specification, which describes an illustrative embodiment shown merely for purposes of illustration in the accompanying drawings, which form a part hereof, in which like characters designate corresponding parts in the several figures, and in which Figure 1 is a perspective View of my complete resector;

Figure 2 is a front elevation of the same;

Figure 3 is a side view taken along the line III-+111 of Figure 2;

Figure 4. is a horizontal section through line IVIV of Figure 2; and

Figure 5 is a horizontal section drawn to double size along line V-V of Figure 3.

A pair of symmetrical operating members 1 and 2 are formed preferably wedgeshaped and of substantially triangular cross section, as shown best in Figure 5. Geometrically, the may be described as triangular prisms. he blunt operating edges are indicated by a and it should be noted that the contiguous faces '5 are parallel and should be laterally separated preferably approximately 7 of an inch. V

The members 1 etude are operated by a pair of necks 3 and 4: respectivelymechanically connected to the members 1' 2 and preferably forming integral outer extensions thereof. The-neeks'g and 4. should be bowed, as indicated best in Figure 1, to escape and clear the parts ofthe nasal "structure which do not require operation.

The necks 3 and 4: continuerespectively i'nto manually operable handles 'ti'and '6 of the forceps type. Between the neck 3 proper and the handle '5 proper substantially onehalf of the metal is cut away to fans the pivoting ledge c, the plane of which is par allel to and intermediate the faces Z) of the operating members 1 and 2. Likewise the metal of the neck and arm structure 4 is cut away to form the pivoting ledge (l. The shank e is provided with a keyhole slot 7 to take the locking pivoting pin g, mounted to upstand from the ledge c of shank h. It is obvious that the two parts of the resector may be disconnected by bringing the two parts substantially at right angles to one another so that the head of the pin 9 can pass through the slot f.

In as much as it is highly essential in this instrument that a true parallel movement between the operating members 1 and 2 be effected without any variation, even when considerable force is being exerted in the lateral separation between the faces 6, it is preferred to provide guiding means in addition to the ledges c and (Z and the slot and pin 7 and 7. It is also an objective to accomplish this supplemental guiding without weakening the structure. To this end I cut a slot 2' in the shank end of the handle 6, preferably so that one wall j of this slot is in the same plane as the ledge d. The other wall 76 of this slot is parallel to the wall 1' and separated therefrom an amount sufficient to snugly engage the parallel side walls of the tongue Z projecting out from the shank end of the handle 5. The outer edge 7 of this tongue should be cut arcuate about the axis of the pin 9 as its axis. The corresponding face of the slot 2' may have similar arcuate contour.

It should be noted that the entire structure of my resector, so far as its pivoting is concerned, is of the scissors genus,-that is, the operatlng blades are respectively on the same side of the median plane as are the sliding pivoting ledges.

What I claim and What I desire to secure by United States Letters Patent is l. A bone resector comprising, a pair of dull operating blades; a pair of relatively pivotable necks respectively mounting said blades so that said blades are guided into and out of approximate juxtaposition with constant lateral separation; and a pair of ing the operative movement of said members.

4. A resector comprising a pair of relatively cooperating shearing crushers having longitudinal blunt operating edges; and means for effecting a relative operating movement of said crushers in separated parallel planes from open position, in which the part to be crushed may be engaged by a longitudinal or endwise engaging movement of the resector to closed position, in which said crushers are approximately juxtaposed.

5. A surgical instrument comprising a pair of handles and operating members arranged like a pair of scissors With the operating parts on opposite sides of the swivelling plane, said operating parts comprising longitudinal blunt edged shearing members permanently laterally spaced; and guiding means comprising a tongue formed on one handle and a mating slot on the other handle.

In testimony whereof I have signed my name to this specification, this 25th day of March, 1918.

FRANK E. MILLER.

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