AU2021104028A4

AU2021104028A4 - A flexible surgical handpiece device

Info

Publication number: AU2021104028A4
Application number: AU2021104028A
Authority: AU
Inventors: Maroti B. Wadewale; Mrunali Kende; Mrimingsi Kri; Jayant Shivaji Landge; Prajwalit P. Kende; Ashish Sarda
Original assignee: BWadewale Maroti
Current assignee: BWadewale Maroti
Priority date: 2021-07-10
Filing date: 2021-07-10
Publication date: 2022-05-05
Anticipated expiration: 2029-07-10

Abstract

The present invention generally relates to a flexible and dismantlable surgical handpiece device comprises a handpiece body containing a head, a neck and a shank, wherein the shank fits into an assembly of handpiece body, head is the cutting or polishing part, and neck connects shank with the head; a dental bur locked into shank for cutting, finishing and polishing applications, wherein the dental bur is configured to rotate in both clockwise and counter-clockwise direction; and a flex shaft extendedly incorporated inside a flex shaft cover thereby altering the angulation to 0, 45 and 90° to perform easy and accurate oral surgical procedures. 13 e-II

Description

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A FLEXIBLE SURGICAL HANDPIECE DEVICE FIELD OF THE INVENTION

The present disclosure relates to surgical devices. In more details, a flexible and dismantlable surgical handpiece device for various medical specialties including ENT surgery, Plastic surgery, Orthopedics and dental specialties including Oral and Maxillofacial surgery, conservative dentistry, and prosthodontics.

BACKGROUND OF THE INVENTION

A handpiece or dental drill is a hand-held, mechanical instrument consisting of internal mechanical components which initiate a rotational force and provide power to the cutting instrument in surgical applications. Straight handpiece, due to its shape, makes it difficult for the surgeon to operate in these inaccessible areas and may lead to overzealous removal of bone. It is difficult for the surgeon to cut the bone/ tooth in inaccessible areas like ear, nose, oral cavity, etc. with the straight shaped handpiece, leading to more removal of bone and/or less precision in surgery. Also, a major problem arousing with routinely used handpieces is that the blood and oral fluid tend to collect in the motor and if not adequately cleaned with oil, can get clogged causing device failure and need for frequent mechanical repairing with replacement of cartridge. The surgical dismantlable handpiece available today are made available by few companies with high cost. There is no surgical handpiece available providing dismantlable setting of the assembly along with flexible shank. In the view of the forgoing discussion, it is clearly portrayed that there is a need to have a flexible and dismantlable surgical handpiece device.

SUMMARY OF THE INVENTION

The present disclosure seeks to provide a surgical handpiece device that is dismantled for cleaning and assembled for surgical applications with three shank designs of 00, 450 and 900 that aids in improving the precision and accuracy of the surgery.

In an embodiment, a flexible and dismantlable surgical handpiece device is disclosed. The device includes a handpiece body containing a head, a neck and a shank, wherein the shank fits into an assembly of handpiece body, head is the cutting or polishing part, and neck connects shank with the head. The device further includes a dental bur locked into shank for cutting, finishing and polishing applications, wherein the dental bur is configured to rotate in both clockwise and counter-clockwise direction. The device further includes a flex shaft extendedly incorporated inside a flex shaft cover thereby altering the angulation to 0, 45 and 900 to perform easy and accurate oral surgical procedures.

In an embodiment, the assembly uses a round bur and straight fissure bur of tungsten carbide to promote adequate tactile sensation and controlled bone/tooth cutting, which, thereby increase the precision of surgery and decrease the unwanted removal of bone.

In an embodiment, a rotary instrument is associated with heat build-up, so to avoid thermal damage to bone and vital structures, cold saline irrigation needs to be provided during the surgery.

In an embodiment, the handpiece body is assembled for adequate cleaning of the assembly, which is helpful in removing all the debris and clot engaged in a cartridge of handpiece body.

In an embodiment, the handpiece body comprises at least three shank designs including 00, 450 and 900 that aids in improving the precision and accuracy of the surgery.

In an embodiment, the assembly comprises a front holder engaged with a flex shaft cover; a fluke holder concentrically fastened into a fluke bearing for holding a fluke (shank) thereby allowing the fluke to rotate in a clockwise or counterclockwise direction, wherein the fluke bearing concentrically enforced into a front bearing which is coaxially attached with the front holder; and a holding ring engaged with the fluke holder through a front coupling.

In an embodiment, a front right cover and front left cover jointly associated with the assembly for covering the assembly, wherein the front right cover and front left cover is joined and secured upon fastening a front cap.

In an embodiment, distal end of the flex shaft is engaged with the fluke whereas proximal end of the flex shaft is engaged with a back coupling, wherein back coupling is rotatably connected with a back bearing that rotates freely upon rotating of the flex shaft.

In an embodiment, a back right cover and back left cover jointly connected with proximal end of the flex shaft cover for securing the back bearing and back coupling.

In an embodiment, the dental bur is fastened into the fluke for rotating the dental bur in a clockwise or counterclockwise direction.

An object of the present disclosure is to develop a flexible and dismantlable surgical handpiece device.

Another object of the present disclosure is to promote cleaning of the handpiece device by dismantling the handpiece device manually.

Another object of the present disclosure is to minimize the cons of routinely used straight handpiece in oral surgical procedures by incorporating flex shaft thereby altering the angulation to 00, 450 and 900.

Yet another object of the present invention is to deliver an expeditious and cost effective surgical handpiece device.

To further clarify advantages and features of the present disclosure, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.

BRIEF DESCRIPTION OF FIGURES

These and other features, aspects, and advantages of the present disclosure will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:

Figure 1 illustrates a block diagram of a flexible and dismantlable surgical handpiece device in accordance with an embodiment of the present disclosure; Figure 2 illustrates a gross view of handpiece in accordance with an embodiment of the present disclosure; Figure 3 illustrates exemplary profile of dismantled parts of handpiece in accordance with an embodiment of the present disclosure; Figure 4 illustrates 0° degree design with shank of handpiece in accordance with an embodiment of the present disclosure; Figure 5 illustrates 450 degree design with shank of handpiece in accordance with an embodiment of the present disclosure; and Figure 6 illustrates 90 degree design with shank of handpiece in accordance with an embodiment of the present disclosure.

Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have necessarily been drawn to scale. For example, the flow charts illustrate the method in terms of the most prominent steps involved to help to improve understanding of aspects of the present disclosure. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

DETAILED DESCRIPTION

For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates.

It will be understood by those skilled in the art that the foregoing general description and the following detailed description are exemplary and explanatory of the invention and are not intended to be restrictive thereof.

Reference throughout this specification to "an aspect", "another aspect" or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Thus, appearances of the phrase "in an embodiment", "in another embodiment" and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.

The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps but may include other steps not expressly listed or inherent to such process or method. Similarly, one or more devices or sub-systems or elements or structures or components proceeded by "comprises...a" does not, without more constraints, preclude the existence of other devices or other sub-systems or other elements or other structures or other components or additional devices or additional sub-systems or additional elements or additional structures or additional components.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The system, methods, and examples provided herein are illustrative only and not intended to be limiting.

Embodiments of the present disclosure will be described below in detail with reference to the accompanying drawings.

Referring to Figure 1, illustrates a block diagram of a flexible and dismantlable surgical handpiece device is illustrated in accordance with an embodiment of the present disclosure. The device 100 is used in various medical specialties like ENT surgery, Plastic surgery, Orthopedics as well as dental specialties like Oral and Maxillofacial surgery, conservative dentistry, prosthodontics, etc. The type of apparatus used clinically vary depending on the required function dictated by the dental procedure. The device includes a handpiece body 102 containing a head 104, a neck 106 and a shank 108, wherein the shank 108 fits into an assembly of handpiece body 102, head 104 is the cutting or polishing part, and neck 106 connects shank 108 with the head 104.

The head 104 is a cutting, finishing and polishing portion. The neck 106 is a portion of rotary instrument that connects the shank 108 and the head 104. The material of head 104 if selected from various material like stainless steel, tungsten carbide, diamond coated, combined, etc. based on the requirement of the procedure. Also, the shape of head 104 is selected from round, straight fissure, tapered fissure, wheel shaped, etc. based on the procedure performed.

In an embodiment, based on shape, the handpiece is divided into straight or contra angle type. Based on speed, handpiece is divided in to ultra-low speed (300-3000 rpm), low speed (3000-6000 rpm), medium speed (20000-45000 rpm), high speed (45000-100,000 rpm), ultra-high speed (100,000 rpm and more). Based on shank 108, handpiece is straight type, latch type and friction grip type. The wide range of speed available makes it unique for carrying out general and specialized procedures like tympanoplasty, rhinoplasty, mastoidectomy, corrective surgeries, reconstructive surgeries, orthopaedic bone fixation, bone removal, surgical tooth removal, dental operative procedures like removing decay, polishing fillings, performing cosmetic dentistry and altering prosthesis.

In an embodiment, a dental bur 110 is locked into shank 108 for cutting, finishing and polishing applications. The dental bur 110 is configured to rotate in both clockwise and counter-clockwise direction. The dental bur 110 is configured for cutting hard tissues such as bone or tooth. The dental bur 110 is locked into handpiece, is an actual cutting instrument composed of shank 108, neck 106 and head 104. Shank 108 fits into the assembly of handpiece, head 104 is the cutting or polishing part, while neck 106 connects shank 108 with the head 104.

In an embodiment, a flex shaft 112 is extendedly incorporated inside a flex shaft cover 114 thereby altering the angulation to 00, 450 and 900 to perform easy and accurate oral surgical procedures. The three flex shafts 112 cover and flex shaft 112 is designed in three angles that is changed according to the surgical area for smooth surgical operations.

In an embodiment, the assembly uses a round bur 110 and straight fissure bur 110 of tungsten carbide to promote adequate tactile sensation and controlled bone/tooth cutting, which, thereby increase the precision of surgery and decrease the unwanted removal of bone.

In an embodiment, the handpiece body 102 is assembled for adequate cleaning of the assembly, which is helpful in removing all the debris and clot engaged in a cartridge of handpiece body 102.

In an embodiment, at least three shank 108 designs including 0, 45 and 90° are configured to aid in improving the precision and accuracy of the surgery with less effort.

In an embodiment, the handpiece is made dismantlable, so that adequate cleaning of the assembly can be done, which is helpful in removing all the debris and clot engaged in the cartridge of handpiece.

In an embodiment, the assembly includes a front holder 116 is engaged with a flex shaft cover 114. A fluke holder 118 is concentrically fastened into a fluke bearing 120 for holding a fluke (shank) 122 thereby allowing the fluke 122 to rotate in a clockwise or counterclockwise direction. The fluke bearing 120 is concentrically enforced into a front bearing 124 which is coaxially attached with the front holder 116. A holding ring 126 is engaged with the fluke holder 118 through a front coupling 128.

In an embodiment, distal end of the flex shaft 112 is engaged with the fluke 122 whereas proximal end of the flex shaft 112 is engaged with a back coupling, wherein back coupling is rotatably connected with a back bearing that rotates freely upon rotating of the flex shaft 112.

In an embodiment, a back right cover and back left cover jointly connected with proximal end of the flex shaft 112 cover for securing the back bearing and back coupling.

In an embodiment, the dental bur 110 is fastened into the fluke 122 for rotating the dental bur 110 in a clockwise or counterclockwise direction.

Figure 2 illustrates a gross view of handpiece in accordance with an embodiment of the present disclosure. The handpiece is observably sectioned into three parts i.e. head 104, shank 108, and tail part, wherein the first part is a head 104 which is attached with the shank 108 via neck 106. The head 104 includes a housing for receiving and thereby securing dental bur 110. The head 104 is protuberated from middle.

The shank 108 is a cylindrical structure having two identical ends. The tail part includes back cover left and back cover right which is joined to form a back cover. Cross sectional area of the of a first half of the back cover is greater than that of the cross-sectional area of a second half of the back cover.

Figure 3 illustrates exemplary profile of dismantled parts of handpiece in accordance with an embodiment of the present disclosure. Figure 3 includes a front cap 11, a fluke 5, a fluke bearing 2, a front bearing 1, a front holder 7, a front coupling 8, a fluke holder 13, a holding ring 14, a front cover right 9, a front cover left 6, a flex shaft cover 16, a back cover left 12, a back cover right 4, a back bearing 3, a back coupling 10, and a flex shaft 15.

The front cap 11 is having an orifice from protuberated side. Distal end towards inner side of the front cap 11 is threaded which is fastened to the front holder 7. The fluke 5 is a small cylinder having an expandable proximal end for securing the dental bur 110. Proximal end of the fluke 5 is fixed into the fluke bearing 2 upon tightening the fluke via threaded end. The fluke bearing 2 allows the fluke 5 to rotate freely in a clockwise or anticlockwise direction. The fluke bearing 2 is concentrically positioned inside the front bearing 1.

The front bearing 1 is connected with the front holder 7, wherein the front bearing 1 is connected with the front holder 7 such that the front bearing 1 is static and the fluke bearing 2 is allowed to rotate. The fluke holder 13 is tightened into the front holder 7 through threaded outer surface of the fluke holder 13 and threaded inner surface of the front holder 7. One end of the front coupling 8 is connected with the fluke holder 13 whereas another end of the front coupling 8 is connected with the holding ring 14.

The holding ring 14 is basically a ring with multiple vertical legs. The legs are coincided with the front coupling 8 and the ring is connected with the flex shaft cover 16. The front cover right 9 and front cover left 6 is joined together and is mounted on the head 104 of the handpiece. The front cover right 9 and front cover left 6 is joined by a plurality of screws fastened into connecting ends of the front cover right 9 and front cover left 6.

The flex shaft cover 16 is like a dumbbell shaped, wherein the protuberated ends of the flex shaft cover 16 is engaged with the front cover right 9 and front cover left 6 from one end and back cover right 4 and back cover left 12 from another end.

The back cover left 12 and back cover right 4 is joined together to form back cover which is joined together by a plurality of screws fastened into connecting ends of the back cover right 4 and back cover left 12.

The back bearing 3 is positioned inside the back cover into groove of the back cover. The back coupling 10 is enforced inside the back bearing 3 such that the bearing allows the back coupling 10 to rotate freely. The flex shaft 15 is incorporated inside through the back coupling 10, flex shaft cover 16, fluke holder 13 and is ended with the fluke 5.

Figure 4 illustrates 0° degree design with shank of handpiece in accordance with an embodiment of the present disclosure. Figure 4 illustrates isometrically exploded view of the handpiece having straight shank 108. The shank 108 includes flex shaft cover 16 and the flex shaft 15.

Figure 5 illustrates 45 degree design with shank of handpiece in accordance with an embodiment of the present disclosure. The flex shaft cover 16 and the flex shaft 15 are bent at degree angle. Although, the components other than the flex shaft cover 16 and the flex shaft 15 is similar to Odegree, and 90degree handpiece.

Figure 6 illustrates 90 degree design with shank of handpiece in accordance with an embodiment of the present disclosure. The flex shaft cover 16 and the flex shaft 15 are bent at degree angle.

The drawings and the forgoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. For example, orders of processes described herein may be changed and are not limited to the manner described herein. Moreover, the actions of any flow diagram need not be implemented in the order shown; nor do all of the acts necessarily need to be performed. Also, those acts that are not dependent on other acts may be performed in parallel with the other acts. The scope of embodiments is by no means limited by these specific examples. Numerous variations, whether explicitly given in the specification or not, such as differences in structure, dimension, and use of material, are possible. The scope of embodiments is at least as broad as given by the following claims.

Benefits, other advantages, and solutions to problems have been described above with regard to specific embodiments. However, the benefits, advantages, solutions to problems, and any component(s) that may cause any benefit, advantage, or solution to occur or become more pronounced are not to be construed as a critical, required, or essential feature or component of any or all the claims.

Claims

WE CLAIM

1. A flexible and dismantlable surgical handpiece device, the device comprises:

a handpiece body containing a head, a neck and a shank, wherein the shank fits into an assembly of handpiece body, head is the cutting or polishing part, and neck connects shank with the head; a dental bur locked into shank for cutting, finishing and polishing applications, wherein the dental bur is configured to rotate in both clockwise and counter-clockwise direction; and a flex shaft extendedly incorporated inside a flex shaft cover thereby altering the angulation to 00, 450 and 900 to perform easy and accurate oral surgical procedures.

2. The device as claimed in claim 1, wherein the handpiece body comprises at least three shank designs including 00, 450 and 900 that aids in improving the precision and accuracy of the surgery.

3. The device as claimed in claim 1, wherein the assembly comprises:

a front holder engaged with the flex shaft cover; a fluke holder concentrically fastened into a fluke bearing for holding a fluke thereby allowing the fluke to rotate in a clockwise or counterclockwise direction, wherein the fluke bearing concentrically enforced into a front bearing which is coaxially attached with the front holder; and a holding ring engaged with the fluke holder through a front coupling.

4. The device as claimed in claim 1, wherein a front right cover and front left cover jointly associated with the assembly for covering the assembly, wherein the front right cover and front left cover is joined and secured upon fastening a front cap.

5. The device as claimed in claim 1, wherein distal end of the flex shaft is engaged with the fluke whereas proximal end of the flex shaft is engaged with a back coupling, wherein back coupling is rotatably connected with a back bearing that rotates freely upon rotating of the flex shaft.

6. The device as claimed in claim 1, wherein a back right cover and back left cover jointly connected with proximal end of the flex shaft cover for securing the back bearing and back coupling.

7. The device as claimed in claim 1 and 3, wherein the dental bur is fastened into the fluke for rotating the dental bur in a clockwise or counterclockwise direction.

8. The device as claimed in claim 1, wherein the assembly uses a round bur and straight fissure bur of tungsten carbide to promote adequate tactile sensation and controlled bone/tooth cutting, which, thereby increase the precision of surgery and decrease the unwanted removal of bone.

9. The device as claimed in claim 1, wherein a rotary instrument is associated with heat build-up, so to avoid thermal damage to bone and vital structures, cold saline irrigation needs to be provided during the surgery.

10. The device as claimed in claim 1, wherein the handpiece body is dismantled for adequate cleaning of the assembly, which is helpful in removing all the debris and clot engaged in a cartridge of handpiece body.

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6