RU166191U1 - TOOL FOR WORKING WITH PATTERN FOR BONE RESECTION - Google Patents

Abstract

The utility model relates to medicine, namely to oncology and orthopedics and is an auxiliary tool that can be used for bone resection using a template.

A tool for working with a template for bone resection, consisting of a cylindrical body with a cutting edge at one end and a handle, DIFFERENT in that the solid metal body of the tool has a T-shaped handle at one end, and an external thread at the opposite end and located in the center of the base case end stud with thread and tapered pointed end, stud diameter less than case diameter; the external thread of the tool body is used to connect to the internal thread of a removable hollow cylindrical tip for bone biopsy, having a cutting edge at the opposite end and to connect to the internal thread of the sleeve of the template for bone resection; 1 PF, 1 ill.

Description

The utility model relates to medicine, namely to oncology and orthopedics and is an auxiliary tool that can be used for bone resection using a template.

A device is known - a guide for osteotomy, comprising a housing equipped with a threaded leg with a handle and transverse through grooves made at different angles. [one]

The disadvantage of this model is the impossibility of changing the angle of the handle, it is not provided for the use of several handles.

Known guide device for osteotomy of the femoral neck. The device comprises a support plate with a radius recess on the inner surface and through holes for securing the device on the femur, a guide for supporting the saw blade and means for visually indicating the angle. [2]

The disadvantage of this model is the trauma during fixation of the guide device, the absence of control elements when fixing the device to the bone.

Known guide-protective device for osteotomy, containing a guide and a protective pad connected to the handle. [3]

The disadvantage of this model is the inability to move the handle separately from the protective cover, the need to use an additional tool when changing the position of the handle, the unforeseen possibility of using additional holding handles in alternative parts of the housing.

As a prototype, we took a device for bone tissue collection, containing a hollow cylindrical body with a cutting edge at one end and a pusher cylinder with a handle in the form of olive [4].

The disadvantage of this device is the limited scope of its application, the difficulty of sterilizing the instrument, the inability to use it when working with a template for bone resection.

The purpose of creating a utility model is to create an auxiliary tool that can be used for bone resection using a template.

This goal is achieved by the fact that the solid metal housing of the tool has a T-shaped handle at one end, and an external thread and an end stud with a thread and a tapered pointed end located at the center of the base of the housing, the diameter of the stud is less than the diameter of the housing; the external thread of the tool body is used to connect to the internal thread of a removable hollow cylindrical tip for bone biopsy, having a cutting edge at the opposite end and to connect to the internal thread of the sleeve of the template for resection of tubular bones.

The technical result of using this tool is to simplify and facilitate the work of the surgeon, ensuring the convenience of bone resection using a template.

The tool for working with the template for bone resection has a solid metal case, at one end of which there is a T-shaped handle, and at the opposite end there is an external thread and an end stud with a thread and a conical pointed end located at the center of the base, the diameter of the tenon is less than the diameter of the case. The external thread of the tool body serves to connect to the internal thread of a removable hollow cylindrical tip for a bone biopsy having a cutting edge at the opposite end and to connect to the internal thread of the sleeve of the bone resection template.

The utility model is illustrated by graphic material.

The figure 1 shows the body of the instrument (A), connecting to it through a threaded connection tip for a bone biopsy (B) and a template for bone resection (C).

The tool for working with the template for bone resection has a solid metal case (1), at one end of which there is a T-shaped handle (2), and at the opposite end there is an external thread (3) and an end stud located in the center of the base of the case (1) ( 4) with a thread and a conical pointed end (5), the diameter of the spike is less than the diameter of the housing.

The external thread (3) of the tool body (1) serves to connect to the internal thread (6) of a removable hollow cylindrical tip (7) for a bone biopsy having a cutting edge (8) at the opposite end.

The template (9) for bone resection, has a through groove (10) around its perimeter, corresponding to the resection line and a hollow sleeve (11) with an internal thread for connection with the tool body (1).

The tool is used as follows. Before performing a bone resection, a biopsy is performed intraoperatively. For this, a threaded hollow cylindrical tip (7) for bone biopsy having a cutting edge (8) at the opposite end is fixed by means of a threaded connection to the tool body (1). Anvil is swayed along the T-handle (2) of the body (1), while rotating the tool body, taking a cylindrical fragment of bone tissue from the pathological focus. Disconnect the tip (7) from the tool body (1). Tap the tip against the surface, or push the biopsy sample through the tip with an improvised tool. The extracted bone is sent for histological examination.

Perform the combination of the personalized template (9) with the bone. By means of a threaded connection, the tool body (1) is combined with the hollow sleeve (11) of the template (9). In this case, an end spike (4) with a thread and a conical pointed end (5) is tightly embedded in the resected bone. An oscillating saw performs bone resection through the through groove (10) of the template (9), while additionally fixing the template (9) to the bone, pressing the T-handle (2) on the tool body (1). Then, sipping on the T-shaped handle (2), the resected bone is removed. Remove the template from the bone.

Achievements of the technical result are confirmed by a clinical example. Patient S., 54 years old. Preliminary diagnosis: Osteoid osteoma of the middle third of the left humerus.

In the operating room under endotracheal anesthesia, after appropriate preparation of the surgical field and the surgeon's hands, an incision was made in the skin and subcutaneous adipose tissue to a pathologically changed area of the humerus. Using the proposed instrument, a biopsy of bone tissue was performed intraoperatively. Then, a personalized template was installed on the humerus, which was additionally fixed with the proposed instrument during its resection. Extraction of the resected area was carried out by simply pulling the tool handle. The template with the bones removed. We performed plastic surgery of the humerus, its osteosynthesis. The wound was sutured in layers.

The proposed tool greatly facilitates and simplifies the work of a surgeon during a bone resection operation using a template. It allows you to immediately intraoperatively perform a biopsy of the pathological bone focus, reliably fix the template to the bone during bone resection with an oscillatory saw, and easily remove the resected area by simply pulling on the handle. Thus, during the operation, it is not necessary to use different instruments for the intended purpose, the process of extraction of the resected bone is facilitated, which undoubtedly facilitates and simplifies the work of the surgeon.

The proposed tool is possible and appropriate to use in oncology units of medical institutions.

INFORMATION SOURCES:

1) Yu.P. Soldiers. Guide for osteotomy: RF patent for utility model No. 116337 dated 05/27/2012

2) G.V. Kuropatkin, A.G. Kuropatkin. Guiding device for femoral neck osteotomy: RF patent for utility model No. 110247 of 11/20/2011

3) E.A. Askerko. Guide-protective device for osteotomy: patent of the Republic of Belarus No. 10140 dated December 30, 2007

4) G.P. Kotelnikov. A device for collecting bone tissue: RF patent for utility model No. 125835 dated July 17, 2012

Claims (1)

A tool for bone resection, consisting of a cylindrical body with a cutting edge at one end and a handle, characterized in that the integral metal body of the tool has a T-shaped handle at one end, and an external thread and an end spike located at the center of the base of the body at the opposite end threaded and tapered pointed end, the diameter of the spike is less than the diameter of the housing; the external thread of the tool body serves to connect to the internal thread of a removable hollow cylindrical tip for bone biopsy having a cutting edge at the opposite end, and to connect to the internal thread of the sleeve of the bone resection template.

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