US-12616484-B2 - Dual-headed surgical instrument

US12616484B2US 12616484 B2US12616484 B2US 12616484B2US-12616484-B2

Abstract

The dual-headed surgical instrument is a surgical instrument with tool heads at either end for performing surgical procedures, such as, for example, skull base dissection. The dual-headed surgical instrument includes an elongated handle portion extending along a longitudinal axis. The elongated handle portion has opposed first and second ends. The first end of the elongated handle portion has a first surgical tool head and the second end of the elongated handle portion has a second surgical tool head. The first surgical tool head extends along a first tool axis which is angularly displaced from the longitudinal axis by 60°. The second surgical tool head extends along a second tool axis which is angularly displaced from the longitudinal axis by 150°. The first end of the elongated handle portion may be curved to define the 60° angle of the first tool axis.

Inventors

ABDULAZIZ SALEH ALRASHEED
SHERIF MOHAMMED ELSEUFY

Assignees

KING SAUD UNIVERSITY

Dates

Publication Date: 20260505
Application Date: 20240703

Claims (4)

1 . A dual-headed surgical instrument, comprising: an elongated handle portion extending along a longitudinal axis, the elongated handle portion having opposed first and second ends, wherein the first end has a first surgical tool head, said first surgical tool head comprising a flat surface having a semi-sharp peripheral edge and an opposing atraumatic face; wherein the second end has a second surgical tool head, said second surgical tool head comprising either a flat surface having a semi-sharp peripheral edge and an opposing atraumatic face or a concave elliptical surface having a semi sharp peripheral edge, wherein the first surgical tool head extends along a first tool axis, the first tool axis being angularly displaced from the longitudinal axis by 60°±2° such that the first surgical tool head is configured to reach an anterior cranial fossa of a patient, wherein the second surgical tool head extends along a second tool axis, the second tool axis being angularly displaced from the longitudinal axis by 150°±2° such that the second surgical tool head is configured to reach both a middle cranial fossa and a posterior crania fossa of the patient, wherein the first end of the elongated handle portion is curved with respect to the longitudinal axis, wherein the second end of the elongated handle portion is straight with respect to the longitudinal axis, wherein the first surgical tool head is attached the first end of the elongated handle portion that is curved with respect to the longitudinal axis, and wherein the second surgical tool head is attached the second end of the elongated handle portion that is straight with respect to the longitudinal axis.
2 . The dual-headed surgical instrument as recited in claim 1 , wherein each of the first and second surgical tool heads comprises a dissector tool head.
3 . The dual-headed surgical instrument as recited in claim 1 , wherein the first surgical tool head comprises a dissector tool head.
4 . The dual-headed surgical instrument as recited in claim 3 , wherein the second surgical tool head comprises a scoop having said concave elliptical surface with said semi sharp peripheral edge.

Description

BACKGROUND Field The disclosure of the present patent application relates to surgical instruments, and particularly to a dual-headed surgical instrument with tool heads at either end for performing surgical procedures, such as skull base dissection. Description of Related Art Endoscopic skull base surgery (ESBS) is widely used for accessing certain tumors of the skull base. In ESBS, access is typically achieved directly through the nose and paranasal sinuses, although access through the eye socket may also be achieved with the endoscope. The anatomy of the skull base is complex, with access to different regions being characterized by a number of different angles extending from the frontal sinus to the craniocervical junction. As such, ESBS requires the surgeon to perform a variety of difficult maneuvers in order to safely perform surgical resection and subsequent reconstruction. In order to access the multiple locations, a surgeon is typically required to switch instruments multiple times throughout the procedure, with each instrument being adapted for a specific access angle. Minimizing the number of instruments used during surgery is important in order to decrease the overall duration of surgery and also to minimize complexity, thus reducing the possibility of error or accident during the procedure. Thus, a dual-headed surgical instrument solving the aforementioned problems is desired. SUMMARY The dual-headed surgical instrument is a surgical instrument with tool heads at either end for performing surgical procedures, such as, for example, skull base dissection. The dual-headed surgical instrument includes an elongated handle portion extending along a longitudinal axis. The elongated handle portion has opposed first and second ends. The first end of the elongated handle portion has a first surgical tool head and the second end of the elongated handle portion has a second surgical tool head. The first surgical tool head extends along a first tool axis which is angularly displaced from the longitudinal axis by 60°. The second surgical tool head extends along a second tool axis which is angularly displaced from the longitudinal axis by 150°. The first end of the elongated handle portion may be curved to define the 60° angle of the first tool axis. In one embodiment, each of the first and second surgical tool heads is a dissector tool head. In an alternative embodiment, the first surgical tool head is a dissector tool head and the second surgical tool head is a scoop. These and other features of the present subject matter will become readily apparent upon further review of the following specification. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a side view of a dual-headed surgical instrument. FIG. 2A is a partial side view of the dual-headed surgical instrument. FIG. 2B is a partial side view of the dual-headed surgical instrument. FIG. 3 is a side view of an alternative embodiment of the dual-headed surgical instrument. FIG. 4A is a partial side view of the dual-headed surgical instrument of FIG. 3. FIG. 4B is a partial side view of the dual-headed surgical instrument of FIG. 3. Similar reference characters denote corresponding features consistently throughout the attached drawings. DETAILED DESCRIPTION The dual-headed surgical instrument 10 is a surgical instrument with tool heads at either end for performing surgical procedures, such as, for example, skull base dissection. As shown in FIGS. 1, 2A and 2B, the dual-headed surgical instrument 10 includes an elongated handle portion 12 extending along a longitudinal axis L. The elongated handle portion 12 has opposed first and second ends 14, 16, respectively. The first end 14 of the elongated handle portion 12 has a first surgical tool head 18 and the second end 16 of the elongated handle portion 12 has a second surgical tool head 20. As best seen in FIG. 2A, the first surgical tool head 18 extends along a first tool axis T1 which is angularly displaced from the longitudinal axis L by 60°. As best seen in FIG. 2B, the second surgical tool head 20 extends along a second tool axis T2 which is angularly displaced from the longitudinal axis L by 150°. As shown, the first end 14 of the elongated handle portion 12 may be curved to define the 60° angle of the first tool axis T1. It should be understood that the dual-headed surgical instrument 10 may be formed of any suitable type of material, such as surgical stainless steel or the like. It should be further understood that the first and second tool heads 18, 20 may be any suitable type of surgical tool heads. In the non-limiting example of FIGS. 1, 2A and 2B, each of the first and second surgical tool heads 18, 20 is a dissector tool head. As a non-limiting example, the dual-headed surgical instrument 10 may be used for skull base dissection. In this non-limiting example, the 150° angle of the second tool head 20 allows the surgeon to reach the middle and posterior cranial fossa, and the 60° angle of the first tool he