Device and method for autogenous bone grafting

a technology grafting device, which is applied in the field of autogenous bone grafting device and method, can solve the problems of increased blood loss, morbidity at the donor site, and prolonged time in the operating room, and achieves the effect of easy control by the thumb

Active Publication Date: 2020-04-23
LEE KAH HUNG BENJAMINO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a device that can be used to cut through a plane that is perpendicular to its pivoting axis. The device has a disc that can rotate to enter the body and is connected to a saw at the tip of it. The device can be raised or lowered to change its vertical position, allowing it to effectively cut across a plane. The invention also has a control interconnecting lever that is easy to operate with the thumb. The technical effects of this device include enabling precise and efficient cutting in a minimally invasive way.

Problems solved by technology

The current disadvantage of autogenous bone grafting in orthopaedic surgery and spinal surgery is the need for an additional operation which is currently traumatic, resulting in donor site morbidity, blood loss and consumes operation time.
The pain and soreness can often last well after the surgery is healed, exceeding the presenting complaint, and there are possible complications such as increased blood loss and prolonged time in the operating room in about 10% to 35% of patients, and varying in severity in these cases, with the use of prior art.
However, there is no control of the degree of inward cutting, and no limit set for the degree of the saw swinging inwards.
However, in these two prior designs, the user must commit the device inside the body to full length before the saw(s) are activated to cut.
The problem with these bone grafting devices is that they do not allow for controllable cutting of the bone, both inwardly for internal bone harvesting, and outwardly for external bone harvesting.
Also, the bone grafting devices do not allow the surgeon to control the depth and longitudinal position of the cut.
Also, the handle used to control the gripping device is not easily accessible.

Method used

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Embodiment Construction

[0066]The following detailed description is merely exemplary in nature and is not intended to limit the described embodiments or the application and uses of the described embodiments. As used herein, the word “exemplary” or “illustrative” means “serving as an example, instance, or illustration.” Any implementation described herein as “exemplary” or “illustrative” is not necessarily to be construed as preferred or advantageous over other implementations. All of the implementations described below are exemplary implementations provided to enable persons skilled in the art to make or use the embodiments of the disclosure and are not intended to limit the scope of the disclosure, which is defined by the claims. For purposes of description herein, the terms “upper,”“lower,”“left,”“rear,”“right,”“front,”“vertical,”“horizontal,” and derivatives thereof shall relate to the invention as oriented in FIG. 1. Furthermore, there is no intention to be bound by any expressed or implied theory pres...

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PUM

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Abstract

A device (100) and method (1200) for autogenous bone grafting simultaneously cuts a cross-section of a bone (212), both longitudinally with a longitudinal cutting member (104), and transversely with a saw (140) during a bone drilling procedure to obtain a bone block (214) for repairing and rebuilding diseased bones. The device (100) is hand-controllable to selectively cut internally to the device (100), so as to cut captured bone (212) for internal bone harvesting. The device (100) also selectively cuts surrounding bone (212) outside the device (100) for external bone harvesting. The saw (140) is biased to stow in a wall space (120) when not in use, and rotate along a perpendicular plane (202) inwardly or outwardly for internal or external cutting of the bone (212), respectively. The saw (140) rotatably extends inwardly to support and carry the bone block (214) after a longitudinal section has been cut. The saw (140) rotatably extends outwardly from the device (100) to release the bone block (214) after the bone grafting procedure.

Description

CROSS REFERENCE OF RELATED APPLICATIONS[0001]This application claims the benefits of Hong Kong short-term patent application no. 17107763.1, filed on Aug. 4, 2017 and entitled BONE HARVESTING DEVICE, which application is incorporated by reference herein in its entirety.FIELD OF THE INVENTION[0002]The present invention relates generally to a device and method for autogenous bone grafting. More so, the present invention relates to a device that simultaneously cuts a cross-section of a bone, both longitudinally and transversely during a bone drilling procedure to obtain a bone block for repairing and rebuilding diseased bones, and further the device is hand-controllable to selectively cut internally to the device to cut captured bone for internal bone harvesting, and to selectively cut surrounding bone outside the device for external bone harvesting, and whereby the device utilizes the same cutting saw to support and carry the bone block from the drilling insertion point, and then rele...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61B17/16
CPCA61B17/1635A61B17/1637A61B17/1615A61B2090/062
Inventor LEE, KAH HUNG BENJAMINO
Owner LEE KAH HUNG BENJAMINO
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