US2331526A - Illuminating device for surgical instruments - Google Patents

Description

0st. 12, 1943. F. c. wAPPLER 2,331,526

-ILLUMINATING DEVICE FOR SURGICL INSTRUMENTS Filed March 13, 1940 2 Sheets-Sheet l l l Q53 34- INVENTOR. FREDER/CK C 11A/ues NAf/alan BY M ATORNEYS.

Oct. l2, 1943. F. c. WAPPLER ILLUMINATING DEVICE FOR SURGICAL INSTRUMENTS Filed March 13, 1940 FfifofR/ck CHAM SYM 2 Sheets-Sheet 2 INVENTOR.

TTORNEYS Patented Oct. 12, 1943 kufaire,u sra-'ras Buca* ILiUMNATIING DEVICE EGR' SQURGCAE 1N STRUMEN'ES fredcr'iclrharles, Wapplen; NewA York, hl. Application 'Maren is, 194e, serial No. 323,553

Si Claims.

My present invention. relates generally to il,- luminating devices and has particular reference to. anilluminating device intendedprimarily for use, withsurgical instruments.. Y

By the, term` "surgical instruments I. intend to refer generally to various devices used doctors, such as tongue depressors, otoscopes, cphthalmoscopes, and. the Illia. where a beam of illumination is. necessary or desirable.

,Ai general. object omy, invention is to provide an. illuminating device ci simplined character, designed to. employ a small electric lamp that is to be energized, usually, by meansoi abattery.

A more particular object of the. invention is to provide. a construction which permits the ernployment of an Unthreaded. lamp unit, i. e., a lamp which is devoid of athreaded portion which would require screwing and unscrewing the lamp into association with a corresponding socket. In accordance with my invention, a lamp unit is employed which is in the form oi a sort ot cartridge, whereby the association of the lamp with` the device, and its replacement, may be accomplished by merely sliding the lampx cartridge into or out of an operative position.

Another general object ofthe invention is to provide ay device Whose structural nature is. of such a character that it may be readily adapted for use with a large variety ci different surgical instruments, the same type of lamp being usable in, each case, thus contributing toward standardization and. uniformity.

Bri'ey, my invention. comprises. a tube of 'electrically-conductive material, a lamp consisting of a bulb mounted in a, cylindricalsleeve, the sleeve tting slidably into the tube, and ameans removably applicable to the rear end of the tube ferf holding the, lamp in placeand at the same time establishing proper electrical connections to the lamp. More particularly, I employ a lamp having one terminal electrically connected to the sleeve, and `I employ an electrical connector having one terminal adapted to engage the conductive tube, within which the lamp isA accommodated, whereby electrical connection is 'established' with one lamp terminal through the conductive tube and through the lamp sleeve. Both the lamp and the electrical connector are provided with insulated terminals which engage electrically with each other when the device is assembled. f K l A particular featureof my invention lies in providing the tubewith'an internal rearwardlydirected shoulder against which'the lamp sleeve u abuts thereby retaining the in, proper picedetermined positionwithin the tube In one fornicf the invention,4 the electrical connector isproyided, with a threaded rotatable attachment collar and. thetube within which the laznpk is. accommodated isf provided with a threaded portion with which this collar may engage.

Inanother form of, the, invention7V the, tube is,`

adapted to be removably associated, withahous.- ine having. a threaded-neck. and-the electrical connector is. provided with a .threaded rotatable attachment. collar which. is adapted to engage. with this` neck when the. device isV completely as sembled.k

I achieve the foregoing objects and such, oth,.- er oinfects als-,may hereinafter be. pointed. out, in thek manner.- uiustrativelv exemplified in the at companyineldrawines 'inwbichl Figure l is a side. view of; anillurnfnatpgf dc.- vice constructed accordance. with thcprcrul,

" invention andA shown inassociation with a. tongue depressor.; l

Fgurefz. is; an enlarged longitudinal cross-scc,- tion through the. illuminating. device? Figure. 3 is an exploded View of the; partsShOWll in Figure 2;; Figure 4 is. a cross-sectional View: taken substantially along the line fle-.sl of Figure 3i;

Figure 5 is a, View similar to,- Figure 1v showing the illumina-ting .device in association with an otescope; i

Figure 6. is anexplcdedvicw of. the lementsentering into the device of Figure 5.:

Figure 'l is a cross-sectional view of, a slightly modi-ned type of-illuminating device shown-` in association with an cphthalrnoscope; and

Figure 8 is. a View, partly broken away, takenl at right;r angles to'Figurev'75. l V

For illustrative purposes I have chosen to illus; trate in Figure 1 a tongue depressor in which a wooden blade lll is rcplaceablv associatedfwith a holding device l l, the latter being provided ywith a tubular housing l-witn .which'the illuminating device is separablyassociated. `Thefhousing ii has its lower end shaped in the form of a threaded neck I3. For apurpose presentlyfto bedescribed, this neck is providedwithfa longitudinal slotM. In the embodiment illustrated inFigures 1 6, the illuminating device comprises a tube I5 of electrically-conductive material, provided atiits upper end with a lens I6 by means oi which a beam of light is thrown in the desired direction. At its rear end the tube I5 is preferablyprovided with the flange I1, and with the longitudinal slot I3.

On the interior of the tube I5, there is formed a. rearwardly-directed shoulder I9. The lamp which I prefer to employ consists of the glass bulb securely and permanently mounted within a cylindrical sleeve 2| of conductive material. This unit is so constructed that one terminal of the lamp lament 22 is electrically connected with the sleeve 2| (shown diagrammatically at 23), while the other side of the lament is connected to an insulated terminal 24 (shown diagrammatically at 25). The terminal 24 is positioned at the rear end of the lamp unit, preferably at the center. It will be understood that the bulb 20 is associated with the sleeve 2| in any suitable conventional manner, and that the terminal 24 is insulated from the sleeve 2| in a wellknown fashion which is known per se.

The sleeve 2| fits slidably into the tube I5, so that the lamp may be introduced into the tube by simply slipping it into the rear end of the tube. It may be removed from the tube in the same manner. When it is introduced into the tube, its forward movement is impeded by the shoulder I9, against which the forward edge of the sleeve 2| abuts. In this way, the lamp is automatically positioned in a predetermined fixed relation to the lens I6.

The assembly is completed by means of an electrical connector having two mutually insulated terminals. One terminal is constituted of the rod 2E Whose upper end is in the form of a separate piece or post 21 yieldably mounted on resilient means such as the spring 28. Surrounding the rod 26, and extending for a suiiicient dis- Iance to enclose the lower portion of the piece 21, is a. sleeve of insulation 29. Mounted on this insulation is the second terminal of the connector which is in the form of a sleeve element SII. This element is provided with the flange 3| and with the projection or iin 32. Rotatably mounted on the element 3|) directly behind the flange 3| is the threaded collar or union 33. This collar is freely rotatably, and is held against longitudinal movement by the flange 3| and by the tubular re; taining member 34, the latter being securely mounted on the lower portion of the element 30.

When the connector is introduced into the rear end of the tube I5, the iin 32 engages within the two longitudinal positioning slots I4 and I8, in this way assuring the proper positional relationship of the tube I5 with respect to the housing I2. At the same time, the collar 33 is screwed into engagement with the threaded neck I3. This presses the flange I1 against the end of the neck I3, and presses the flange 3| firmly against the flange I1. Also, the terminal 21 is pressed iirmly against the contact 24, yielding axially as it does so. l

The electrical connector is preferably of the well-known type, as illustratedl which may be removably associated with a so-called battery-handle, whereby one terminal of the battery is brought into electrical connection with the rod 26, while the other terminal of the battery is brought into electrical connection with the sleeve 34, hence with the terminal 30.

As a result, the illuminating device is securely assembled and held in proper position with respect to the housing I2, and the proper electrical connections to the lamp filament are automatically established. More particularly, one side of the filament 22 is connected through the sleeve 2|, the tube I5, and the terminal 30, with one side of the battery or other source of current, while the other side of the filament 22 is connected, through the contact 24 and the terminal 2li-E21, with the other side of the source of cur- Ien The assembly of the device and its association with the instrument with which it is to be used (illustratively shown as a tongue depressor in Figure l), is thus an extremely simple procedure. In the event that the lamp requires replacement, it is equally simple to unscrew the collar 33, to remove and replace the lamp through the rear end of the tube, and to reapply the collar 33.

In Figures 5 and 6 I have shown for illustrative purposes an otoscope 35 with which the same illuminating device may be associated.

vThe otoscope is provided with a housing 36 having a threaded and slotted neck 31 similar to the neck I3 of Figures 1-3. The manner of association with this neck of the tube I5, and the electrical connector, is exactly the same as hereinbefore described. For these reasons, the same reference numerals are applied to the parts in Figures 5 and 6, wherever these parts are identical with the structure shown in Figures l-4.

It will be understood that the tongue depressor of Figure l and the otoscope of Figure 5 are shown merely by way of example and that a large number of different instruments, requiring or benefiting from a beam of illumination, may be similarly tted with an illuminating device of the present kind, it being understood that a suitable housing and a threaded neck is associated with the instrument in each case. Obviously, also, the broader phases of my invention are not restricted to instruments of surgical variety.

In Figures '1 and 8 I have illustrated a slight modification of the invention showing its applicability to an ophthalmoscope.

The details of the ophthalmoscope have not been fully illustrated, nor need they be fully described since such an' instrument is well-known per se. In the usual form it includes a tubular housingSS within which the lamp is to be accommodated.

I have illustratively shown a sleeve 39 mounted in the housing 38 and carrying the lenses 40 corresponding in function to the lens I6 of Figure 2. Behind the sleeve 39 is a split sleeve 4I, the rear end of which, designated by the reference numeral 42, constitutes the internal rearwardly-directed shoulder hereinbefore referred to. The sleeve 4I and the tube 38 are both conductive material and the shoulder 42 of Figure '1 thus corresponds in function to the integral shoulder I9 shown in Figure 2.

The rear end of the tube 38 is provided with a longitudinal slot 43, and differs from the tube I5 of Figure 2 in the fact that it is exteriorly threaded as at 44.

The lamp that is introduced into the tube 38 is identical with the lamp shownvin the other figures of the present drawings, and comprises the sleeve 45 and the insulated terminal 46. The forward end of the sleeve 45 abuts against the shoulder 42 when the lamp is inserted, thus assuring a proper predetermined positioning 0i the lamp with respect to the lenses 40.

The electrical connector shown in Figures 7 and 8 is substantally the same as the electrical connector described in connection with the other figures, with the exception that the rotatable threaded attachment collar 41 is 'of such a size that it may engage with the threads Ml on the tube SS. The rod terminal 48, the separate upper piece i9 yieldably mounted on the spring 50, the insulation I, theA terminal 52 with'its flange 53 and n Sti, and the retaining sleeve '.55 are all counterparts of the corresponding elements shown and described in connection with the other figures.

The insertion and removal of the lamp into the ophthalmoscope is thus accomplished with the same ease as hereinbefore described. The fact that this lamp may be identical with the lamp used in other illuminating devices is of great advantage to the doctor, and is conducive to economy and standardization in so far as the manufacture and servicing of a large variety of different instruments are concerned.

In general, it will be understood that those skilled in the art may make changes in the details herein described and illustrated, without departing from the spirit and scope of the invention as expressed in the appended claims. It is, therefore, intended that these details be interpreted as illustrative and not in a limiting sense.

Having thus described my invention and illustrated its use, what I claim as new and desire to secure by Letters Patent isl. In an illuminating device of the character described, an electrically-conductive tube having an open rear end and an internal rearwardlydirected shoulder, a lamp comprising a bulb mounted in a sleeve, said sleeve tting slidably within said tube and said bulb being narrower than said sleeve so that the lamp may be inserted into the tube through the open rear end thereof and may be advanced forwardly until the front edge of said sleeve abuts against said shoulder to hold the lamp in predetermined position within said tube, said lamp having one terminal adapted to establish electric contact with the tube and having also an insulated rear terminal, and an electrical connector removably applicable to the rear end of the tube and provided with mutually insulated terminals adapted to engage the tube and the rear lamp terminal respectively.

2. In an illuminating device of the character described, the combination of elements set forth in claim 1, one of the connector terminals being a post adapted to press against said rear lamp terminal, the other being a member insulated from the post and adapted to press against the rear end of said tube.

3. In an illuminating device of the character described, the combination of elements set forth in claim 1, one of the connector terminals being a post adapted to press against said rear lamp terminal, and resilient means allowing said post' to yield axially when it is pressed against said terminal.

4. In an illuminating device of the character described, the combination With the elements set forth in claim 1, of a threaded rotatabley attachment collar carried by said connector.

5. rlhe combination with the elements set forth in claim 1, of a housing adapted to receive said tube, a rearwardly-extending threaded neck on said housing through which said tube may be inserted forwardly into said housing, and a threaded rotatable attachment collar carried by said connector and removably engageable with said neck.

6. In an illuminating device of the character described, a housing having a threaded neck provided with a longitudinal positioning slot, an electrically-conductive tube having an internal rearwardly-directed shoulder, said tube being insertable into said housing through said neck, a lamp comprising a conductive sleeve in electrical connection with one lamp terminal, said sleeve fitting slidably into said tube and adapted to abut against said shoulder to hold the lamp in predetermined position within said tube, an electrical connector removably applicable to the rear end of the tube and having one terminal that is thereby brought into electrical connection with said tube and hence with said lamp sleeve, both the lamp and the connector having insulated terminals which connect electrically with each other when theV connector is in position, a longitudinal positioning slot in said tube, a iin on said connector adapted to engage within both positioning. slots to hold the tube in predetermined relation to the housing, and a threaded rotatable attachment collar carried by said connector and removably engageable with said neck.

7. In an illuminating device of the character described, an electrically-conductive tube having an open rear end and an internal rearwardly-directed shoulder, a lamp comprising a bulb mounted in a sleeve, said sleeve fitting slidably Within said tube and said bulb bein T narrower than said sleeve so that the lamp may be inserted intothe tube through the open rear end thereof and may be advanced forwardly until the front edge oi said sleeve-abuts against said shoulder to hold the lamp in predetermined position within said tube, said lamp having one terminal adapted to establish electric contact with the tube and having also an insulated rear terminal, an electrical connector removably applicable to the rear end of the tube and provided with mutually insulated terminals adapted to engage the tube and the rear lamp terminal respectively, a housing adapted to receive said tube, a rearwardlyextending threaded neck on said housing through which said tube may be inserted forwardly into said housing, said neck bein-g provided with a rearwardly-open longitudinal positioning slot,

said tube being also provided with a rearwardlyopen longitudinal positioning slot, a nn on said connector adapted to enter into both of said slots, and a threaded rotatable attachment collar carried by said connector and removably engageable with said neck.

8. In an illuminating device of the character described, an electrically-conductive tube having an open rear end and an internal rearwardlydirected shoulder, a lamp comprising a bulb mounted in a conductive sleeve which is in electrical connection with one lamp terminal, said sleeve fitting slidably within said tube and said bulb being narrower than said sleeve so that the lamp may be inserted into the tube through the open rear 'end thereof and may be advanced for-- wardly until the front ed-ge of said sleeve abuts against said shoulder, and means removably engaging said tube at the rear and adapted to press forwardly against said lamp to hold said lamp in said advanced position, said means comprising a connector having one terminal in electrical connection with said tube and hence with said lampsleeve, both the lamp and the connector having insulated terminals which connect electrically with each other when the connector is in position,

, FREDERICK C. WAPPLER.

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