US2625934A - Surgical wire feeding device - Google Patents

Description

Jan 20, 1953 T. w. HALLIDAY SURGICAL WIRE FEEDING DEVICE Filed April 20, 1951 Patented Jan. 20, 1953 UNITED STATES TENT OFFICE l2 Claims.

rihis invention relates `to surgical instruments and has particular reference to a, feeding device for surgical wire.

One of the principal objects of my invention is to provide a device for feeding relatively fine wire into connedspaces. Such a device has particular application in the surgical treatment of aneurism, a more or less circumscribed dilation of a blood vessel. One `f the effective methods of treatment is to prevent puncture and fatal hemorrhage by securing coagulation of the blood in the dilatation or sac and contraction of the clot. This is accomplished by filling the aneurism with fine relatively soft wire upon which the blood coagulates. The wire is introduced through a hypodermic needle or the like. in many cases as much as 300 to 400 feet of wire is required to fill the sac, resulting in a difficult and time-consuming task for the surgeon who must feed this wire by hand into the openv end of the needle.

Accordingly, another object of my invention is to provide a device for mechanically feeding ne surgical wire at high speed into blood vessel sacs for the treatment of aneurism, 01 the like.

Another object of my invention is to provide a wire-feeding device of the type described which is simple in construction and which is extremely easy to operate.

Another object of my invention is to provide a device of the character described in which the manually operable parts are positioned at a point remote from the wire-delivering end so that the device is easily manipulated from outside the body of the patient.

Other objects and advantages of this invention, it is believed, will be readily apparent from the following detailed description of a preferred embodiment thereof when read in connection with the accompanying drawings.

In the drawings:

Figure 1 is a plan view of a preferred embodiment of my invention.

Figure 2 is a vertical sectional view thereof, on an enlarged scale.

Figure 3 is a plan view, on an enlarged scale, of the clutch member and related parts.

Figure 4 is a sectional elevation taken substantially on the line 4-4 of Figure 2.

Figure 5 is a sectional elevation taken substantially on the line 5-5 of Figure 2.

Figure 6 is a vertical sectional view of the wiredelivery end of the device.

Referring now to the drawings, the device which embodies my invention is generally indicated at I0, and includes `an outer elongated guide or tube II and an inner elongated guide or tube i2. The tube I2 is adapted to reciprocate within the outer tube II. The wire-delivery end I3 of the tube II is beveled as shown for puncturing the wall of the blood vessel sac (not shown). Mounted on the tube II adjacent the end I3 is a circular flange la of rubber or rubber-like material which is adapted to contact the outer surface of the aneurism and limit further inward travel of the tube II. An adjustable collet I5 is provided for adjusting the longitudinal position of the flange I4.

As shown in the drawings, the surgical wire Zit, which is relatively line stainless steel, extends from a supply spool (not shown) through the inner tube I2 and out the delivery end I3 of the outer tube II. Clutch means are provided for releasably connecting the wire 2li to the inner tube I2 and as shown in the drawings, these means may comprise the clutch assembly 2d. This includes thehandle member 25 which has aneck member 26 in which is carried the free end 2l of the inner tube. This handle member, which may be .knurled as shown, has a central bore 2S axially aligned with the tube l2 and through which bore is passed the wireZil.

Aflange 29, having a longitudinal slot 3S, is provided at the end of the handle remote from theneck member 26, and pivotally connected in theslot 33 by means of a pin 3| is aclutch member 32. This clutch member comprises alongitudinal 4bar 33 having on one end a transversely extending wire-clutching finger 313 operable in atransverse groove 35 in the handle member. Thegroove 35 terminates in aplane surface 33 perpendicular to the finger 3d and intersecting the bore 2 8 (see Figure Ll) so that clamping pressure may be applied to the wire 2e by the finger 3G without substantially distorting or crimping the wire. A thumb ring 3i is provided on the top side of thebar 33.

Means are provided for limiting the stroke of the inner tube i2 and for preventing disassembly of the inner and outer tubes. As shown in the drawings, these means include a collar le secured to the receiving end 4I of the outer tube iI, the end @I being vprovided with a shoulder portion i2.Arod 43 extends through a longitudinal borelll inthe collar lll) and is secured thereto by means ofasetvscrew 4,3 (see Figure 5). The rod 43v extends through a, bore it in the flange v39 and terminates in a stop member or collar 4l. It will be understood rthat the bore l is oversize so thatthe clutch assembly 2li is freely slidable along the length of the rod d3. The length of the stroke may be adjusted 3 through changing the effective length of therod 43 by means of theset screw 45.

The operation of the device is as follows:

'Ihe wire-delivery end I3 is inserted through the dilated blood vessel wall and into the interior of the sac, the iiange I4 previously having been adjusted to limit the depth of travel of the outer tube II into the sac. Thecollar 40, which is knurled as shown, is gripped with the fingers of one hand and thehandle member 25 gripped with the lingers of the other hand, the thumb extending through thethumb ring 31. Theclutch assembly 24 is then moved from the solid line or forward position to the phantom line or rearward position illustrated in Figure 1. During this rearward movement of the clutchl assembly no pressure is exerted by the thumb of the operator upon the ring 3l so that thewire 20 remains in place, only the inner tube being carried rearwardly along with the clutch assembly. When the clutch assembly has reached the rearward position, pressure is exerted by the thumb, pivoting theclutch member 32 toward the handle and clamping thewire 20 between thefinger 34 and the surface 38. II'he clutch assembly is then moved forward, telescoping the wire tube I2 into the outer tube II, the wire being carried along by the clutch assembly. When the clutch assembly reaches the forward or solid line position, a length of wire equal to the length of the stroke of the clutch assembly will have been fed out of the delivery end I3 of the outer tube. This process of withdrawal and insertion of the inner sleeve is continued until the desired length of wire has been fed into the sac. After only a little practice a high speed of reciprocation can be attained, and long lengths of wire may thus be fed in a short time.

While I have shown and described a specific embodiment of my invention, I do not limit myself to the exact details of the construction set forth, and the invention embraces such changes, modifications and equivalents of the parts and their formation and arrangement as 'Y come within the purview of the appended claims.

I claim:

l. In a surgical wirefeeding device, an outer elongated guide, an inner elongated guide adapted to encompass a length of wire and reciprocable forwardly into and rearwardly out of said outer guide, and clutch means for connecting a length of wire to said inner guide during the forward stroke of said inner guide whereby the wire may be advanced through said outer guide, said clutch means adapted to be released during the rearward stroke of said inner guide.

2. In a surgical wire feeding device, an' outer elongated guide, an inner elongated guide adapted to encompass a length of wire and reciprocable forwardly into and rearwardly out of said outer guide, clutch means for connecting a length of wire to said inner guide during the forward stroke of said inner guide whereby the wire may be advanced through said outer guide, said clutch means adapted to be released during the rearward stroke of said inner guide, and means for limiting the stroke of said inner guide.

3. In a surgical wire feeding device, an outer elongated guide, an inner elongated guide adapted to encompass a length of wire and reciprocable forwardly into and rearwardly out of said outer guide, and clutch means carried on said inner guide for engaging a length of wire with said inner guide during the forward stroke of said inner guide whereby the wire may be advanced through said outer guide, said clutch means adapted to be disengaged during the rearward stroke of said inner guide.

4. In a surgical wire feeding device, an outer elongated guide, an inner elongated guide adapted to encompass a length of wire and reciprocable forwardly into and rearwardly of said outer guide, clutch means carried on said inner guide for engaging a length of wire with said inner guide during the forward stroke of said inner guide whereby the wire may be advanced through said outer guide, said clutch means adapted to be disengaged during the rearward stroke of said inner guide, and means for limiting the stroke of said inner guide.

5. In a surgical wire feeding device, an outer elongated tube, an inner elongated tube adapted to contain a length of wire and axially reciprocable forwardly into and rearwardly out of said outer tube, and clutch means for connecting a length of wire to said inner tube for the forward stroke of said tube wherebythe wire may be advanced through said outer tube, said clutch means adapted to be released during the rearward stroke of said inner tube.

6. In a surgical wire feeding device, an outer elongated tube, an inner elongated tube adapted to contain a length of wire and axially reciprocable forwardly into and rearwardly out of said outer tube, clutch means for connecting a length of wire to said inner tube for the forward stroke of said tube whereby the wire may be advanced through said outer tube, said clutch means adapted to be released during the rearward stroke of said inner tube, and means for limiting the stroke of said inner guide.

7. In a surgical wire feeding device, an outer elongated guide; an inner elongated guide adapted to encompass a length of wire and longitudinally reciprocable forwardly into and rearwardly out of said outer guide; and a clutch assembly carried on said inner guide, said assembly including a finger adapted to be actuated to clamp the wire during the forward stroke of said inner guide whereby the wire may be advanced through saidv outer guide, said linger adapted to be released during the rearward stroke of said wire.

8. In a surgical wire feeding device, an outer elongated guide; an inner elongated guide adapted to encompass a length of wire and longitudinally reciprocable forwardly into and rearwardly out of said outer guide; and a clutch `assembly carried on saidv inner guide, said assembly including a handle member having a bore axially aligned with said inner guide, and a clutch member pivotally connected to said handle, said clutch member having a finger operable in a transverse groove in said handle to clamp the wire.

9. In a surgical wire feeding device, an outer elongated guide; an inner elongated guide adapted to encompass a length of wire and longitudinally reciprocable forwardly into and rearwardly out of said outer guide; and a clutch assembly carried on said inner guide, said assembly including a handle member, and a clutch member pivotally connected to said handle, said clutch member having a finger operable to clamp the wire.

10. In a surgical wire feeding device, an outer elongated guide; an inner elongated guide adapted to encompass a length of wire and longitudinally reciprocable forwardly into and rearwardly out of said outer guide; a clutch assembly carried on said inner guide, said assembly including a finger adapted to be actuated to clamp the wire during the forward stroke of said inner guide whereby the wire may be advanced through said outer guide, said nger adapted to be released during the rearward stroke of said wire, and means for limiting the stroke of said inner guide.

1l. In a surgical wire feeding device, an outer elongated tube having a wire receiving end and a wire feeding end; an inner elongated tube adapted to contain a lengthof wire and axially reciprocable forwardly into and rearwardly out of said outer tube; a clutch assembly carried on the free end of said inner tube, said assembly including a handle member having a bore axially aligned with said inner tube, a flange carried on said handle, and a clutch member pivotally connected to said handle, said clutch member having a finger operable in a transverse groove in said handle to clamp the Wire; and means for limiting the stroke of the inner tube, said means including a collar carried on the Wire receiving end of said outer tube, a rod extending longitudinally through a bore in said flange, and a stop member carried on the end of said rod and adapted to contact the flange to limit rearward motion of the same.

12. In a surgical wire feeding device, an outer elongated tube having a wire receiving end and a Wire feeding end; an inner elongated tube adapted to contain a length of wire and axially reciprocable forwardly into and rearwardly out of said outer tube; a clutch assembly carried on the free end of said inner tube, said assembly including a handle member, a flange carried on said handle, and a clutch member pivotally connected to said handle, said clutch member having a nger operable to clamp the wire; and means for limiting the stroke of the inner tube, said means including a collar carried on the wire receiving end of said outer tube, a rod extending longitudinally through a bore in said ilange, and a stop member carried on the end of said rod and adapted to contact the flange to limit rearward motion of the same.

THOMAS W. HALLIDAY.

REFERENCES CITED The following references are of record in the file of this patent:

V. Mueller and Co., Chicago, General Catalog. Copyright, 1938, page 193. Item NS 640. (Copy available Division 55.)-

Images