US1240026A - Surgical appliance. - Google Patents

Description

E. B. CHAPMAN.

SURGICAL APPLIANCE.

APPLICATION FILED OCT. 10 I912- lfinmgfiu Patented Sept. 11; 1917,.

WITN ESSES i TE lVEBETT BROWN CHAPMAN, OF PHILADELPHIA, PENNSYLVANIA.

SURGICAL APPLIANCE.

Specification of Letters Patent.

Patented Sept. 11, 191?.

Application filed October 10, 1912. Serial No. 725,039.

To all whom it may concern:

Be it known that I, EVERETT BROWN CHAP- MAN, of Philadelphia, in the State of Pennsylvania, have invented a certain new and useful Improvement in Surgical Appliances, whereof the following is a specification, reference being had to the accompanying drawings.

My invention relates to an appliance for hypodermically injecting pellets, and may be employed with particular advantage in the treatment of cattle for what is known as black leg. The claims in this application are limited to the construction and arrangeinent of what may be termed a magazine cartridge adapted to contain and normally retain a plurality of medicinal pellets. The form of my invention herein shown and described, is particularly designed for cotiperation with the injector means such as claimed in another application copending herewith and including a reciprocatory plunger in concentric relation with a tubular hypodermic needle and adapted to thrust a pellet through said needle from said cartridge; the latter including a plane disk adapted to be rotated in connection with the injector, and having a circular series of sockets, being openings extending through said disk parallel with its axis, said cartridge carrying upon its opposite plane faces covers for the opposite ends of said sockets, preferably paper or similar frangible material. Such material is preferably transparent or translucent so as to enable the operator to ascertain, visually, whether said sockets contain pellets or not. However, suitable covers for said sockets may be made of opaque material which is perforated concentrically with said sockets to disclose the pellets without normally permitting the escape thereof, or, imperforate opaque covering material may be employed, so arranged as to permit the op- I erator to ascertain, tactually, Whether said sockets contain pellets or not.

My invention includes the various novel features of construction and arrangement hereinafter more definitely specified.

In the drawings :Figure I is a plan view of a cartridge conveniently embodying my invention.

Fig. II is a transverse sectional view of said cartridge showing the cooperative rela tion of said plunger with respect thereto.

Fig. III is a p i ll View of a modified form of my invention,

Fig. IV is a transverse sectional view of the cartridge shown in Fig. III.

Fig. V is an edge view of the cartridge shown in Figs. III and IV.

Referring to the form of my invention shown in Figs. I and II; the cartridge 1 includes the plane disk 2 having a circular series of sockets 3 opening therethrough parallel with the axis of said disk. Said cartridge carries, upon its opposite plane faces, covers for the opposite ends of said sockets, preferably sheets of paper or similar frangible fabric i and 5. Such material is preferably transparent or translucent to such a degree as to enable the operator to ascertain, visually, whether said sockets contain pellets 7 or not.

Said cartridge 1 primarily contains a pellet 7 in each of its sockets 3, and is con veniently provided with the central opening 8 for connection with a device for automatically filling said sockets 3 with said pellets. Said cartridge is also provided with three openings 9 extending through the cartridge parallel with its axis to receive a rotary carrier by which said cartridgemay be turned to successively present said sockets 3 in alinement with the plunger 11 by which the pellets 7 may be successively projected therefrom as indicated in Fig. II. It may be observed that said openings 9 are in unsymmetrical relation so as to insure that the cartridge may only be engaged in predetermined relation with the carrier. Such an arrangement is desirable in order that said sockets may be successively presented in the order indicated by the numerals respectively designating said sockets as indicated in Figs. I and V.

In. the form of my invention shown in Figs. III, IV and V the cartridge 12 includes the plane disk 13 having a circular series of sockets 14 opening therethrough parallel with the axis of said disk. Said cartridge carries upon its opposite plane faces, covers for the opposite ends of said sockets, being sheets of frangible fabric 16 andl'? which may be opaque, said sheet 16 being provided with perforations 18 registering with each of said sockets, through which the interior of the socket may be inspected to ascertain whether it is empty or not.

Said cartridge 12 primarily contains a pellet 20 in each of its sockets 14, and is conveniently provided with three openings extending through the cartridge parallel with its axis to receive a rotary carrier by which said cartridge may be turned to suecessively present said sockets 14 in alinement with a plunger by which the pellets 20 may be successively projected therefrom as above described.

Moreover, said cartridge 12 is provided with an unsymmetrical axial opening 23 to engage the mechanism with which it. cooperates; said opening being unsymmetrical to insure that the cartridge may only be engaged in predetermined relation with such mechanism.

The cartridges herein described are adapted to cooperate with the mechanism forming the subject matter of my copending application aforesaid including a rotary cartridge carrier having means to engage and rotate .them step by step to successively present the sockets therein in registry with the plunger by which pellets are projected from the sockets, and, the index numbers herein shown individually designating the respective sockets are so arranged and presented as to indicate to the operator the number of pellets remaining in the cartridge. For instance, the cartridge 1 primarily contains twenty-five pellets, and, when initially connected with the mechanism for rotating it, the number 25 is manifested to indicate that 25 pellets are in the cartridge. Pellet No. 25 is the first one projected and upon such projection the number 24: is manifested to indicate that 24 pellets remain in the cartridge and so on until the pellets are all discharged from the cartridge when the latter is removed and replaced by another fully charged. It is to be understood that the metal disk members of the cartridges above described may be repeatedly used;

the "frangible covers or other means for hold- I ing the pellets in the sockets being replaced as required.

It may be observed that the provision of means to enable the operator to ascertain whether each socket in the cartridge contains a pellet or not is important because the operation. of charging the cartridges with pellets requires such care that it is likely that a pellet may be occasionally omitted from a cartridge, and, if so, the hypodermic needle might be inserted and the mechanism operated to thrust the plunger 11 through the empty socket without the operator being aware that the operation had failed to inject a pellet as intended. However, I find it unnecessary to provide means for the operator to visually ascertain whether the sockets are empty or not, as the fact may be ascertained tactually if the Copies of this patent may be obtainedfor fabric employed to cover the sockets is flexible enough to permit the operator to feel by finger pressure whether the pellets are contained in the cartridge or not.

Therefore, I do not desire to limit myself to the precise details of construction and arrangement herein set forth as it is obvious that various modifications may be made therein without departing from the essential features of my invention as defined in the appended claims;

1. In a device of the character described a plane-disk, having means whereby it may be rotatably engaged, and a circular series of sockets, being openings-extending through said disk parallel with its axis; frangible covers for the opposite ends of said sockets, so arranged that the operator may ascertain whether said sockets are empty or not, including sheets of translucent fabric attached to the opposite faces of said disk; and, pellets in said sockets between said covers.

2. In a device of the character described a plane disk, having means whereby it may be 'rotata bly engaged, and a circular series of sockets,being openings extending through said disk parallel with itsaxis; and, frangible covers for the opposite ends of said sockets, so arrangedthat the operator may ascertain whether said sockets are empty or not, including sheets of translucent fabric attached to the opposite faces of said disk.

3. In a device of the character described a plane disk, having means whereby it may 'be rotatably engaged, and a circular series of sockets, being openings extending through said disk ,parallel with its axis; and, frangible covers for the opposite ends of said sockets, so constructed andarranged that the operator may ascertain whether saidisockets are empty or not, including sheets of fabric attached to the opposite faces of said disk.

4. -In a device of'the character described, a plane disk, having means whereby it may be rotatably engaged and a circular series of j socketsfbeing openings extending through said disk parallel with its axis; and, frangible covers for the opposite ends of said sockets, so constructed and arranged that the operator may ascertain whether said sockets are empty or not. y

In testimony whereof, I have hereunto signed my name at Philadelphia, Pennsyl- Vania, this nineteenth day of September, 1912. i

v EVERETT BROWN CHAPMAN.

IVitnesses ARTHUR E. PAIGE, IVILLIAM A. RANDALL.

five cents each, byaddres'sing the "Commissioner otPatents, Washington, D. C."

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