Patent Application
20170056101
The present disclosure relates to surgical devices and methods, including improved minimally invasive or laparoscopic instruments. Although many laparoscopic instruments have been developed, certain features of such devices can be improved to make the device more ergonomic and easier to operate by permitting better hand positioning and gripping, better control of device components, and improved aesthetics.
The minimally invasive or laparoscopic instruments described provide improvements in a variety of ways. The instruments of the present disclosure have larger openings in the grasping handles to allow multiple digits of a user to grasp the instrument. In addition, proximally directed extensions of a rotatable control allow a user with smaller hands to reach the control using the same hand that grasps the handle. Furthermore, a specially designed connection for cautery or other instruments is provided that can allow more flexibility in controlling the position of connecting wires, thereby facilitating operation. Additional stylistic and ergonomic features produce improved visual appeal.
In one embodiment, a surgical instrument is provided. The instrument can comprise a handle including an upper grasping section and a lower grasping section, the upper and lower grasping sections joined at a joint, wherein the upper grasping section and the lower grasping section each include an opening shaped and sized to receive at least one digit of a user, and wherein the lower grasping section is sized to receive two or more digits of a user.
In one embodiment, a surgical instrument is provided. The instrument can comprise a handle including an upper grasping section and a lower grasping section, the upper and lower grasping sections joined at a joint; and an elongated shaft extending from the handle, wherein the elongated shaft and handle are joined at an oblique angle.
Also provided is an electrocautery connection for a laparoscopic instrument. The electrocautery connection can comprise a solid ring portion for rotatably engaging a laparoscopic instrument and a conductive connection extending from the ring portion.
Reference will now be made in detail to certain exemplary embodiments according to the present disclosure, certain examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
In this application, the use of the singular includes the plural unless specifically stated otherwise. In this application, the use of “or” means “and/or” unless stated otherwise. Furthermore, the use of the term “including”, as well as other forms such as “included” and “includes”, is not limiting.
Use of the word “distal” is intended to indicate portions of an object nearest the patient while the word “proximal” is intended to indicate portions of an object furthest from the patient or closest to an operator's grasping hand. Any range described herein will be understood to include the endpoints and all values between the endpoints.
The section headings used herein are for organizational purposes only and are not to be construed as limiting the subject matter described. All documents, or portions of documents, cited in this application including but not limited to patents, patent applications, articles, books, and treatises are hereby expressly incorporated by reference in their entirety for any purpose.
With reference to
The handle 20 includes an upper grasping section 30 and a lower grasping section 40. In accordance with various embodiments, the upper grasping section 30 can have an opening to accommodate a user's fingers and/or thumb. The opening can have an inner length 32 that is large enough to accommodate at least one and preferably more than one digit of a user simultaneously to improve the ability of the user to manipulate the tool and to improve user comfort. In accordance with various embodiments, the lower grasping section 40 can have an opening to accommodate a user's fingers. The opening can have an inner length 42 that is large enough to accommodate two or more digits of a user simultaneously to improve the ability of the user to manipulate the tool and to improve user comfort. The ends of the upper grasping section 30 and the lower grasping section 40 may include curved proximal extensions 44 to add to the visual appeal of the laparoscopic instrument 10. Similarly, the upper grasping section 30 and the lower grasping section 40 may be curved in a manner that is visually appealing. When a user grips the upper 30 and lower grasping sections 40, a linkage through the elongated shaft 12 can cause actuation of a tool located at the distal end 14 of the elongated shaft 12. The handle 20 may be attached to laparoscopic instruments including, but not limited to, scissors, graspers, electrocautery instruments, and retraction devices.
During an operation, the surgeon may be required to assume a less than optimal hand position to manipulate, grasp, or act upon the surgical site or control the device 10. To address this issue, a rotatable control 50 may be used to rotate the elongated shaft 12 relative to the handle 20. In embodiments of the present invention, the rotatable control 50 can have proximally directed extensions 52 placed around the knob to allow a user to manipulate the knob using a hand that is also gripping the handle 20. The use of the instrument 10 with a single hand enables the user to manipulate other objects with the free hand and thus improves efficiency during a surgical procedure. The proximally directed extensions 52 make it easier for users with smaller hands to reach and manipulate the rotatable control 50. In some embodiments, the rotatable control 50 can comprise one to six proximally directed extensions 52. The proximally directed extensions 52 can also be provided with a non-slip material along a portion or all of the surface of the extensions to improve manipulation by a user.
In some embodiments, the elongated shaft 12 and the handle 20 are joined at an oblique angle 180. The use of an oblique angle 180 improves the ergonomics of the instrument 10 and reduces strain on a user's hand. In some embodiments, the oblique angle 180 may be between about 110° and 145°. In a preferred embodiment, the oblique angle 180 is 136°. The combination of the oblique angle 180 and the rotatable control 50 may be designed to allow a user to obtain and maintain optimal ergonomics during use.
Turning now to
The handle 20 or rotatable portion 50 can include a unique finish to provide a smooth, durable, and visually appealing instrument 10. The desired finish may be chosen depending on the material needed or the characteristics desired. In accordance with various embodiments, the materials and finish on the handle 20 or rotatable portion 50 can include, but are not limited to, oxide coating over steel, powder coat over steel, anodized titanium, injection-molded plastic, or any other material or finish required based upon application-specific considerations.
In some embodiments, the instruments described herein can further include one or more specially designed connectors. For example, laparoscopic instruments can include connections for cautery, including mono-polar electrocautery. The connections, which are necessarily attached to a wire or conductive power supply, however, can interfere with device movement, manipulation, or visualization. Accordingly, the present application also provides for connectors that allow better manipulation and flexibility of movement of connections such as mono-polar electrocautery connectors.
As shown, the connection 200 comprises a solid ring portion 220 with an opening 222 for rotatably engaging a laparoscopic instrument and a conductive connection 210 extending from the ring portion. The conductive connection 210 can include a connector for a monopolar electrocautery system, but could include a connection for other types of laparoscopic instruments or controls.
As shown, the ring portion 220 is positioned adjacent the rotatable control 50 or between the control 50 and shaft 12. Furthermore, the ring portion 220 surrounds a distal section of the handle 10′ or shaft attachment 54 to provide a rotatable connection. It will be appreciated that the shaft attachment 54 may be modified to accommodate the connection 200 while also allowing attachment of a shaft portion 12, e.g., by extending the attachment and including a smooth or otherwise modified surface for rotation of the connection 200.
As noted, the connection 200 can be mobile or rotatable, thereby facilitating movement of connected wires or other devices. For example,
Other embodiments will be apparent to those skilled in the art from consideration of the specification and practice of the devices and methods disclosed herein.
This application claims priority to U.S. Provisional Patent Application No. 62/212,169, filed Aug. 31, 2015 and incorporated herein by reference in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 62212169 | Aug 2015 | US |
