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Patent Searching and Data


Title:
MICRO FORCEPS WITH A REPLACEABLE HEAD
Document Type and Number:
WIPO Patent Application WO/2023/038599
Kind Code:
A1
Abstract:
The invention relates to micro forceps comprising at least one micro forceps tip (1) and micro forceps body (5), suitable for use in the field of microsurgery, and supermicrosurgery. The invention is characterized in that it comprises at least one threaded end part (4) on the micro forceps tip (1) to allow attaching and detaching the micro forceps tip (1) to/from the micro forceps body (5), at least one threaded body part (6) on the said micro forceps body (5), where the said threaded end part (4) is seated, at least one hoop (2) and at least one groove (3) on the said hoop to allow rotating the said micro forceps tip (1).

Inventors:
DAĞDELEN DAĞHAN (TR)
Application Number:
PCT/TR2022/050917
Publication Date:
March 16, 2023
Filing Date:
August 29, 2022
Export Citation:
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Assignee:
T C TRAKYA UNIV (TR)
International Classes:
A61B17/00; A61B17/062; A61B17/30; B25B9/02
Foreign References:
US4938214A1990-07-03
US20110054509A12011-03-03
US3818784A1974-06-25
Attorney, Agent or Firm:
YALCINER, Ugur G. (YALCINER PATENT & CONSULTING LTD.) (TR)
Download PDF:
Claims:
CLAIMS

1. Micro forceps comprising at least one micro forceps tip (1) and micro forceps body (5), characterized in that; it comprises the following - At least one threaded end part (4) on the micro forceps tip (1) to allow attaching and detaching the micro forceps tip (1) to/from the micro forceps body (5),

- At least one threaded body part (6) on the said micro forceps body (5), where the said threaded end part (4) is seated,

- At least one hoop (2) and at least one groove (3) on the said hoop to allow rotating the said micro forceps tip (1).

2. An apparatus for attaching the micro forceps tip (1) to the micro forceps body (5), characterized in that; it comprises micro forceps tip clamp (7).

3. A micro forceps tip clamp (7) according to claim 2, characterized in that; it comprises at least one groove (8) allowing rotation by attaching it to the groove (3) on the said micro forceps tip (1).

6

Description:
MICRO FORCEPS WITH A REPLACEABLE HEAD

TECHNICAL FIELD

The invention relates in general to micro forceps used in the field of microsurgery, and supermicrosurgery.

Particularly, the invention relates to micro forceps with a replaceable tip.

STATE OF THE ART

Today, various precision tools are being used in the field of microsurgery, and supermicrosurgery. One of them is micro forceps.

By definition, microsurgery describes surgical operations with precision tools under microscopic magnification. These surgical operations mainly encompass vein anastomoses, lumen organ anastomoses, and nerve repairs. With the definition of the supermicrosurgery technique, now, thinner veins (>0.8mm) can be successfully repaired at greater magnification. Surgical precision tools are required to successfully perform these operations. These tools are sold by mainstream surgical tool manufacturers at high costs.

Micro forceps have high-precision tips and are used not only in the field of medicine but also in industries requiring precision handwork such as jewelry and analog watch manufacture.

One of the main drawbacks of micro tools is that simple mechanical traumas (the tool falling off the table, not being fastened in the sterilization tray, etc.) cause serious damage to the tools’ tips. Particularly, regarding those used for surgery, it is common that the precision tips are damaged during cleaning after the operation, and often become unusable. The fact that the tools are considered the same as other macro tools in the cleaning and sterilization process and that the necessary sensitivity is not shown is a common reason for this problem. Another problem is that such tools, particularly those manufactured for surgical operations, are often developed according to the design of a single surgeon. Therefore, custom designs or modifiable tips are not possible. First, the desired custom design is approved by the manufacturer, and then it is manufactured. Such custom manufacture can be provided at very high costs.

In addition, micro tools suitable for the planned operation should be used. To give an example of an analog wristwatch repair, more than one forceps with different tips should be used according to the diameter of the gears to be replaced and the size of the shaft axis. The equivalent of this in surgical applications is that more than one forceps with different tips for the vein diameters to be repaired (in an ideal microsurgical set) must be present (preferably 5 and more). Micro forceps of different sizes and fineness will be used for each vein diameter. Therefore, sets containing more than one micro forceps must be used, which increases the cost of the set significantly.

The time between sending the damaged micro tools’ tips to the manufacturer for repair, and repairing the product takes long in the present art, and repair options are mostly possible for the body/hinge part of the tool, but the same success is not possible for the tip which is the most frequently damaged part.

The most common solution is to purchase the same tool again. And this brings along a serious cost burden. Especially for surgeons working in an institution, during the time elapsed to provide a budget suitable for the supply of the new tool, operations based on this tool can not be performed or can be tried to be performed with unsuitable tools in a way to reduce the operation’s success.

Patent application No. W02021063066A1 titled “MEDICAL ELECTROCOAGULATION FORCEPS” in the present art discloses cauterization forceps with replaceable tips. Cauterization forceps, through which electric current is passed, are used for purposes completely different from micro forceps. However, the said structure herein does not offer a solution to the problems in the prior art for ease of use.

Patent application No. WO8705483A1 titled “HAND HELD SURGICAL TOOL” in the present art discloses a surgical tool used in microsurgery. Said surgical tool has replaceable parts in its body, but the invention is complex and does not offer a solution to the other problems in the prior art.

Patent application No. US4634165A titled “Forceps having replaceable tips” in the present art discloses a forceps seated in a fixed body. The said structure does not offer a solution to the other problems in the prior art for ease of use.

Consequently, micro forceps are being improved, thus new configurations that will eliminate the above-mentioned disadvantages and bring solutions to existing systems are required.

OBJECTS OF THE INVENTION

The present invention relates to micro forceps that meet the above-mentioned requirements, eliminate all the disadvantages and bring some additional advantages.

The main object of the invention is to provide articulated forceps having a fixed forceps body, and a tip that can be attached/detached to/from its end.

An object of the invention is to provide a threaded groove on the body that will stabilize the tips.

Another object of the invention is to provide micro forceps that allow using tips of different sizes and fineness in a single body by replacing them.

Another object of the invention is to provide easily detachable micro forceps suitable for the sterilization process.

Another object of the invention is to provide more cost-efficient micro forceps, compared to conventional forceps.

The structural and characteristic features and all the advantages of the invention will be understood more clearly thanks to the figures given below and the detailed description written with reference to these figures. Therefore, the evaluation should be made in consideration of these figures and the detailed description. BRIEF DESCRIPTION OF THE FIGURES

To best understand the embodiment of the present invention and its advantages together with additional elements, it should be evaluated in conjunction with the figures described above.

Figure 1 An isometric view of the micro forceps tip according to the invention.

Figure 2 A side view showing the assembly of the micro forceps tip and body according to the invention.

Figure 3 A front view of the micro forceps tip clamp according to the invention, and an isometric view of the micro forceps tip.

REFERENCE NUMBERS

1. Micro forceps tip

2. Hoop

3. Groove

4. Threaded end part

5. Micro forceps body

6. Threaded body part

7. Micro forceps tip clamp

8. Protrusion

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, preferred embodiments of the micro forceps tip (1) according to the invention are only explained for a better understanding of the subject matter, without any limiting effect.

In Figure 1, an isometric view of the micro forceps tip (1) according to the invention is given. In Figure 2, a side view showing the assembly of the micro forceps tip (1) according to the invention and the micro forceps body (4) is given. In Figure 3, a front view of the micro forceps tip clamp (7) according to the invention and an isometric view of the micro forceps tip (1) is given.

As can be seen in Figures 1 and 2, the threaded end part (4) in the micro forceps tip (1) is rotationally attached to the threaded body part (6) in the micro forceps body (5). The micro forceps clamp (7) is used in the rotation process.

The protrusion (8) in the micro forceps clamp (7) can be easily rotated by attaching it to the groove (3) on the hoop (2) of the micro forceps tip (1). Thus, the micro forceps tip (1) can be easily attached and detached to/from the micro forceps body (5). The micro forceps tip clamp

(7) can be used universally for the adaptation of all micro forceps tips (1).

The micro forceps tip (1) can also be easily applied to laparoscopic surgery and robotic surgery tips. In this context, it can be used in all surgical applications that will require technical and high-precision mechanical operations and can reduce costs.