Assembly tools and surgical aids

Abstract

The utility model provides an assembly tool and a surgical auxiliary device, wherein the assembly tool comprises: an assembly body, the assembly body is provided with a first assembly groove and a second assembly groove, the shape of the first assembly groove matches the first component, an elastic member is provided in the first assembly groove, and the elastic member is used to limit the first component in the first assembly groove; the shape of the second assembly groove matches the second component, and the second assembly groove is used to disassemble and assemble the second component. The first component can be other components with the same or similar shape and function as the inspection pin, and the second component can also be other components with the same or similar shape and function as the butterfly screw; by adopting the above technical solution, the assembly tool of this embodiment integrates two assembly functions in one tool, reduces the number of tools, reduces the number of times the doctor needs to switch different tools during operation, and improves the operational flexibility, efficiency and convenience.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical auxiliary equipment, and more specifically, to an assembly tool and a surgical auxiliary equipment. Background Art

[0002] With the deepening of the concept of knee arthritis stepwise and knee-preserving treatment, the improvement of prosthesis design and the use of computer-assisted unicompartmental knee arthroplasty (UKA) have expanded the indications of UKA and reduced the postoperative revision rate. In addition, the advantages of UKA, such as less trauma, less bleeding, and faster recovery, have made UKA the preferred treatment for most patients with unicompartmental knee lesions. Accurate implantation of the prosthesis is a key factor affecting the postoperative efficacy and prosthesis life. The improvement of computer navigation and positioning system technology can reduce the requirements of unicompartmental knee arthroplasty on the doctor's operating skills and improve the accuracy of surgical operations, making the positioning and implantation of unicompartmental knee prostheses more accurate. Therefore, computer navigation-assisted robots have become the choice of most doctors for unicompartmental knee arthroplasty surgery, and their demand is growing, and the demand for corresponding surgical auxiliary tools has also increased accordingly.

[0003] At present, in unicompartmental knee replacement surgery, the computer navigation-assisted robot needs to be assembled with inspection pins and tracers. The insertion of the inspection pins and the tightening of the butterfly screws of the tracer require two different tools. The increase in tools will directly lead to a waste of operating actions. Doctors need to frequently switch tools to adjust the assembly operations, resulting in long operation time and poor operating convenience. Utility Model Content

[0004] The utility model aims to provide an assembly tool and a surgical auxiliary device to solve the technical problem in the prior art that the assembly of the inspection pin and the tracer in the unicompartmental replacement surgery requires two different tools, resulting in a long operation time and poor operation convenience.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] In a first aspect, an assembly tool is provided, comprising:

[0007] An assembly body is provided with a first assembly groove and a second assembly groove, the shape of the first assembly groove matches the first component, an elastic member is provided in the first assembly groove, and the elastic member is used to limit the first component in the first assembly groove; the shape of the second assembly groove matches the second component, and the second assembly groove is used to disassemble and assemble the second component.

[0008] By adopting the above technical solution, the assembly tool of this embodiment integrates two assembly functions into one tool, reducing the number of tools, reducing the number of times the doctor needs to switch different tools during operation, and improving operational flexibility, efficiency and convenience.

[0009] In one embodiment, the first assembly groove is provided at one end of the assembly body in the axial direction, and a notch of the first assembly groove is provided in the axial direction of the assembly body toward a side away from the assembly body.

[0010] By adopting the above technical solution, when the first component is limited in the first assembly groove, the first component can be arranged along the axial direction of the assembly body, which is beneficial for the assembly body to apply axial force on the first component and facilitates the assembly of the first component.

[0011] In one embodiment, the first assembly groove includes a first limiting groove wall, which is perpendicular to the axial direction of the assembly body and is used to abut against the first surface of the first component to limit the axial movement of the first component along the assembly body.

[0012] By adopting the above technical solution, the first limiting groove wall is used to limit the axial movement of the first component relative to the assembly body, which is beneficial to the assembly of the first component.

[0013] In one embodiment, the first assembly groove includes a second limiting groove wall, which is parallel to the axial direction of the assembly body, and the second limiting groove wall is used to abut against the second surface of the first component to limit the first component from moving in a direction perpendicular to the axial direction of the assembly body.

[0014] By adopting the above technical solution, the second limiting groove wall is used to limit the movement of the first component in a direction perpendicular to the axial direction of the assembly body, which is beneficial to the assembly of the first component.

[0015] In one embodiment, the first assembly groove includes a third limiting groove wall, the elastic member is protruded on the third limiting groove wall, the protruding direction of the elastic member is perpendicular to the axial direction of the assembly body, and the elastic member is used to limit the first component from rotating around the axis of the assembly body.

[0016] By adopting the above technical solution, the third limiting groove wall and the elastic member are used to limit the first component from rotating around the axial direction of the assembly body, which is beneficial to the assembly of the first component.

[0017] In one embodiment, the elastic member includes an elastic arm and a mating protrusion, the elastic arm is integrally formed on the assembly body, the mating protrusion is arranged on the end of the elastic arm away from the assembly body, and the mating protrusion is used for interference fit with the mating hole of the first component.

[0018] By adopting the above technical solution, the elastic member can limit the first component in the first assembly groove.

[0019] In one embodiment, a protruding direction of the matching protrusion is opposite to a notch direction of the second assembly groove.

[0020] By adopting the above technical solution, it is helpful for operators to determine the assembly direction of the inspection nail and improve the assembly accuracy.

[0021] In one embodiment, the second assembly groove is provided on a side surface of an end portion of the assembly body facing away from the first assembly groove.

[0022] The adoption of the technical solution facilitates the assembly and disassembly of the second component.

[0023] In one embodiment, the number of the second assembly grooves is two, and the length directions of the two second assembly grooves are perpendicular to each other.

[0024] By adopting the above technical solution, the second assembly grooves in two directions can switch the orientation when the assembly tool interferes with the tracer component or other structural parts, and the doctor can also switch flexibly during operation.

[0025] In a second aspect, a surgical auxiliary device is provided, comprising a surgical auxiliary device body and the above-mentioned assembly tool, wherein the assembly tool is connected to the surgical auxiliary device body.

[0026] By adopting the above technical solution, on the basis of having the advantages of the assembly tool of the above embodiment, the surgical auxiliary device of this embodiment also has the advantages of high integration and small number of components. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a three-dimensional structural diagram of an assembly tool provided by an embodiment of the utility model.

[0029] Figure 2 It is a three-dimensional structural diagram of an assembly tool provided by an embodiment of the utility model, wherein the assembly tool is limited by a first component.

[0030] Figure 3 It is a cross-sectional view of an assembly tool provided by an embodiment of the utility model.

[0031] Figure 4 It is a cross-sectional view of an assembly tool provided by an embodiment of the utility model, wherein the assembly tool is limited by a first component.

[0032] Figure 5 yes Figure 3 Magnified view of point “A” in the figure.

[0033] The reference numerals in the figures are:

[0034] 100, assembly tool; 200, first component; 201, check head; 202, check nail part;

[0035] 1. Assemble the main body;

[0036] 11. first assembly groove; 12. second assembly groove; 13. elastic member;

[0037] X, axial direction;

[0038] 111, first limiting groove wall; 112, second limiting groove wall; 113, third limiting groove wall; 131, elastic arm; 132, matching protrusion. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention, and do not indicate that a device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The following is a more detailed description of the specific implementation of the present utility model in conjunction with specific embodiments:

[0043] like Figure 1 and Figure 2 As shown, an assembly tool 100 provided by an embodiment of the utility model is applied to unicompartmental replacement surgery. The assembly tool 100 of this embodiment can be used to assemble two surgical auxiliary components, including a first component 200 and a second component, wherein the first component 200 is an inspection pin in this embodiment, and the second component is a butterfly screw of a tracer; of course, in actual application scenarios, the first component 200 can be other components with the same or similar shape and function as the inspection pin, and the second component can also be other components with the same or similar shape and function as the butterfly screw; the assembly tool 100 of this embodiment integrates two assembly functions in one tool, reduces the number of tools, reduces the number of times that doctors need to switch different tools during operation, and improves the convenience of operation; the following is an explanation through specific implementation methods:

[0044] Please also read Figure 3 and Figure 4 The assembly tool 100 of this embodiment includes: an assembly body 1, wherein the assembly body 1 is provided with a first assembly groove 11 and a second assembly groove 12, the shape of the first assembly groove 11 matches the first component 200, and an elastic member 13 is provided in the first assembly groove 11, and the elastic member 13 is used to limit the first component 200 in the first assembly groove 11; the shape of the second assembly groove 12 matches the second component, and the second assembly groove 12 is used to disassemble and assemble the second component.

[0045] Here, it can be understood that the assembly body 1 refers to the body of the assembly tool 100, and the assembly body 1 is used to set the first assembly groove 11 and the second assembly groove 12. At the same time, the assembly body 1 is used for a doctor or an operator to hold, or the assembly body 1 is used to connect with the main body of the surgical auxiliary device;

[0046] The first assembly groove 11 refers to a groove provided on the assembly body 1. The first assembly groove 11 is used to limit the first component 200, that is, the first component 200 can be fixed in the first assembly groove 11. The shape of the first assembly groove 11 matches the first component 200, so that the first component 200 can be placed in the first assembly groove 11. It should be explained here that a part of the first component 200 is placed in the first assembly groove 11, and another part of the first component 200 is exposed in the first assembly groove 11, so that the part can be assembled on other components; an elastic member 13 is provided in the first assembly groove 11, and the elastic member 13 is used to position the first component 2 00 is limited in the first assembly groove 11; for example, in this embodiment, the first component 200 is an inspection nail, and the inspection nail includes an inspection head 201 and an inspection nail portion 202. When the inspection nail is limited in the first assembly groove 11, the inspection head 201 is limited in the first assembly groove 11 by the elastic member 13, and the inspection nail portion 202 is exposed outside the first assembly groove 11. The inspection nail portion 202 is used to be placed on the target component. When the inspection nail portion 202 is fixed to the target component, the inspection head 201 overcomes the elastic force of the elastic member 13 and separates from the first assembly groove 11, thereby realizing the separation of the first component 200 from the first assembly groove 11;

[0047] The second assembly groove 12 refers to a groove opened on the assembly body 1, and the second assembly groove 12 is used for disassembling and assembling the second component; the shape of the second assembly groove 12 matches the shape of the second component, so that the second component can be just placed in the second assembly groove 12, and the groove wall of the second assembly groove 12 can limit the second component. Rotating the assembly body 1 can make the groove wall of the second component drive the second component to rotate, thereby realizing the disassembly and assembly of the second component; illustratively, in this embodiment, the second component is a butterfly screw, and the butterfly screw includes a butterfly head and a butterfly nail part. When the butterfly screw is limited in the second assembly groove 12, the butterfly head is placed in the second assembly groove 12, and the butterfly nail part is exposed outside the second assembly groove 12. When the assembly body 1 is rotated, the assembly body 1 drives the second assembly groove 12 to rotate, thereby driving the butterfly head to assemble, and finally drives the butterfly nail part to connect or disconnect with the target component.

[0048] The working principle of the assembly tool 100 provided in this embodiment is as follows:

[0049] This embodiment is explained by assembling a first component 200 which is an inspection pin and a second component which is a butterfly screw. The inspection head 201 of the inspection pin is limited in the first assembly groove 11 by the elastic force of the elastic member 13, wherein the inspection pin portion 202 is exposed outside the first assembly groove 11, and the inspection pin portion 202 is used to align with the target part. The operator can fix the inspection pin on the target part by vertically knocking the assembly body 1. After the inspection pin is fixed, the operator applies a force to the assembly body 1 so that the assembly body 1 overcomes the force of the elastic member 13 that limits the inspection pin, thereby separating the assembly body 1 from the inspection pin, and completing the insertion of the inspection pin; the butterfly head of the butterfly screw is placed in the second assembly groove 12, the butterfly head is limited by the groove wall of the second assembly groove 12, and the assembly body 1 is rotated to drive the butterfly screw to rotate, thereby realizing the disassembly and assembly of the butterfly screw.

[0050] By adopting the above technical solution, the assembly tool 100 of this embodiment integrates two assembly functions into one tool, reducing the number of tools, reducing the number of times the doctor needs to switch different tools during operation, and improving operational flexibility, efficiency and convenience.

[0051] In one embodiment, the first assembly groove 11 is disposed at one end of the assembly body 1 in the axial direction X, and a notch of the first assembly groove 11 is disposed in the axial direction X of the assembly body 1 toward a side away from the assembly body 1 .

[0052] Here, it can be understood that the above design can make the first component 200 be located in the axial direction X of the assembly body 1 when it is limited to the first assembly groove 11, so that when the operator applies a force along the axial direction X, the force in the axial direction X can be directly transmitted to the first component 200, which is beneficial to the assembly of the first component 200; for example, when the first component 200 is an inspection nail, the inspection nail is limited in the first assembly groove 11, the inspection nail is aligned with the target part, the inspection nail is coaxially arranged with the assembly body 1, and the operator applies an axial force X on the assembly body 1, such as hitting the assembly body 1 with a hammer, and the axial force X of the assembly body 1 is directly transmitted to the inspection nail, and the inspection nail can be assembled on the target part; in addition, the notch of the first assembly groove 11 is located in the axial direction X of the assembly body 1, and the notch is arranged on the side away from the assembly body 1, so that the inspection nail can be arranged along the axial direction X when it is limited to the first assembly groove 11.

[0053] By adopting the above technical solution, when the first component 200 is limited in the first assembly groove 11, the first component 200 can be arranged along the axial direction X of the assembly body 1, which is beneficial for the assembly body 1 to apply the axial force X on the first component 200 and facilitates the assembly of the first component 200.

[0054] like Figure 5As shown, in one embodiment, the first assembly groove 11 includes a first limiting groove wall 111, which is perpendicular to the axial direction X of the assembly body 1, and the first limiting groove wall 111 is used to abut against the first surface of the first component 200 to limit the movement of the first component 200 along the axial direction X of the assembly body 1.

[0055] Here, it can be understood that the first assembly groove 11 includes multiple limiting groove walls, one of which is the first limiting groove wall 111. The first limiting groove wall 111 is the bottom groove wall of the first assembly groove 11 in this embodiment. The first limiting groove wall 111 is perpendicular to the axial direction X of the assembly body 1. The first limiting groove wall 111 is used to abut against the first surface of the first component 200. In this embodiment, the first surface is the bottom surface of the inspection head 201. The first limiting groove wall 111 abuts against the first surface to limit the first component 200 to move along the axial direction X of the assembly body 1.

[0056] It needs to be further explained that the axial direction X of the assembly body 1 is defined as the Z-axis direction in the surgical navigation system.

[0057] By adopting the above technical solution, the first limiting groove wall 111 is used to limit the axial X movement of the first component 200 relative to the assembly body 1, which is beneficial to the assembly of the first component 200.

[0058] In one embodiment, the first assembly groove 11 includes a second limiting groove wall 112, which is parallel to the axial direction X of the assembly body 1, and the second limiting groove wall 112 is used to abut against the second surface of the first component 200 to limit the first component 200 from moving in a direction perpendicular to the axial direction X of the assembly body 1.

[0059] Here, it can be understood that the first assembly groove 11 includes a plurality of limiting groove walls, one of which is the second limiting groove wall 112. The second limiting groove wall 112 is the side groove wall of the first assembly groove 11 in this embodiment. The second limiting groove wall 112 is parallel to the axial direction X of the assembly body 1. The second limiting groove is used to abut against the second surface of the first component 200. In this embodiment, the second surface is the side of the inspection head 201. The second limiting groove wall 112 abuts against the second surface to limit the first component 200 to move along the direction perpendicular to the axial direction X of the assembly body 1.

[0060] It needs to be further explained that the direction perpendicular to the axial direction X of the assembly body 1 is defined as the X-axis direction and the Y-axis direction in the surgical navigation system.

[0061] By adopting the above technical solution, the second limiting groove wall 112 is used to limit the movement of the first component 200 relative to the direction perpendicular to the axial direction X of the assembly body 1, which is beneficial to the assembly of the first component 200.

[0062] In one embodiment, the first assembly groove 11 includes a third limiting groove wall 113, the elastic member 13 is protruded on the third limiting groove wall 113, the protruding direction of the elastic member 13 is perpendicular to the axial direction X of the assembly body 1, and the elastic member 13 is used to limit the first component 200 from rotating around the axis of the assembly body 1.

[0063] Here, it can be understood that the first assembly groove 11 includes a plurality of limiting groove walls, one of which is the third limiting groove wall 113. The third limiting groove wall 113 is a side groove wall of the first assembly groove 11 in this embodiment. The third limiting groove wall 113 is provided with an elastic member 13. In this embodiment, the elastic member 13 is used to limit the first component 200 from rotating in the axial direction X of the assembly body 1.

[0064] By adopting the above technical solution, the third limiting groove wall 113 and the elastic member 13 are used to limit the first component 200 from rotating around the axial direction X of the assembly body 1, which is beneficial to the assembly of the first component 200.

[0065] In one embodiment, the elastic member 13 includes an elastic arm 131 and a mating protrusion 132. The elastic arm 131 is integrally formed on the assembly body 1. The mating protrusion 132 is arranged on the end of the elastic arm 131 away from the assembly body 1. The mating protrusion 132 is used for interference fit with the mating hole of the first component 200.

[0066] Here, it can be understood that the elastic arm 131 can be a metal elastic arm 131, and the elastic arm 131 is formed by cutting a groove on the assembly body 1, so that the elastic arm 131 is integrally formed on the assembly body 1, which is beneficial for the elastic arm 131 to provide elastic force; at the same time, the assembly body 1 and the elastic arm 131 are a single-component structure, which can be directly processed without the need for further parts assembly; the matching protrusion 132 is arranged at the movable end of the elastic arm 131, and the shape of the matching protrusion 132 matches the shape of the side hole 2011 on the inspection head 201 of the inspection pin, and the matching protrusion 132 can be a round protrusion; in this embodiment, the matching protrusion 132 can be interference fit with the side hole 2011 of the inspection head 201 under the elastic force of the elastic arm 131, so that the inspection pin is limited in the first assembly groove 11.

[0067] By adopting the above technical solution, the elastic member 13 can limit the first component 200 in the first assembly groove 11 .

[0068] In one embodiment, the protruding direction of the matching protrusion 132 is opposite to the notch direction of the second assembly groove 12 .

[0069] Here, it can be understood that the second assembly groove 12 on the assembly body 1 is exposed, and the second assembly groove 12 is directional, which is used to indicate the installation direction of the side hole 2011 of the inspection pin. Specifically, the protruding direction of the matching protrusion 132 is opposite to the notch direction of the second assembly groove 12, that is, the position of the matching protrusion 132 can be determined from the notch direction of the second assembly groove 12, and then the direction of the side hole 2011 of the inspection head 201 that matches the matching protrusion 132 can be determined, and finally it can be determined whether the assembly direction of the inspection pin is correct; and the large head design of the assembly body 1 is convenient for the doctor to knock with a hammer when inserting the inspection pin.

[0070] By adopting the above technical solution, it is helpful for operators to determine the assembly direction of the inspection nail and improve the assembly accuracy.

[0071] In one embodiment, the second assembly groove 12 is provided on a side surface of an end portion of the assembly body 1 that is away from the first assembly groove 11 .

[0072] Here, it can be understood that the first assembly groove 11 and the second assembly groove 12 are respectively located at the two ends of the assembly body 1, wherein the first assembly groove 11 is located on the end surface, and the second assembly groove 12 is located on the side surface of the end, and the side surface is located on one side of the axis of the assembly body 1. The second assembly groove 12 is designed according to the parameters of the butterfly screw head, so that the butterfly screw can be fully inserted into the second assembly groove 12, and then the second assembly groove 12 is limited to achieve the role of "lever fulcrum".

[0073] The adoption of the technical solution facilitates the assembly and disassembly of the second component.

[0074] In one embodiment, the number of the second assembly grooves 12 is two, and the length directions of the two second assembly grooves 12 are perpendicular to each other.

[0075] Here, it can be understood that the two second assembly grooves 12 form a "T"-shaped groove. When installing the tracer, the "T"-shaped groove is inserted into the butterfly head according to the orientation requirements (axial X and radial), the other end is held by hand, and then the butterfly head is tightened, and the orientation can be flexibly switched according to the requirements.

[0076] By adopting the above technical solution, the second assembly grooves 12 in two orientations facilitate switching of the orientation of the assembly tool 100 when interference occurs with the tracer component or other structural parts, and the doctor can also switch flexibly during operation.

[0077] In a second aspect, a surgical auxiliary device is provided, comprising a surgical auxiliary device body and the above-mentioned assembly tool 100 , wherein the assembly tool 100 is connected to the surgical auxiliary device body.

[0078] By adopting the above technical solution, on the basis of having the advantages of the assembly tool 100 of the above embodiment, the surgical auxiliary device of this embodiment also has the advantages of high integration and a small number of components.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembly tool, characterized in that: include: An assembly body, wherein the assembly body is provided with a first assembly groove and a second assembly groove, wherein the shape of the first assembly groove matches the first component, and an elastic member is provided in the first assembly groove, and the elastic member is used to limit the first component in the first assembly groove; The shape of the second assembly groove matches the second component, and the second assembly groove is used for assembling and disassembling the second component.

2. The assembly tool according to claim 1, characterized in that: The first assembly groove is arranged at one end of the assembly body in the axial direction, and the notch of the first assembly groove is arranged in the axial direction of the assembly body toward a side away from the assembly body.

3. The assembly tool according to claim 2, characterized in that: The first assembly groove includes a first limiting groove wall, which is perpendicular to the axial direction of the assembly body and is used to abut against the first surface of the first component to limit the first component from moving along the axial direction of the assembly body.

4. The assembly tool according to claim 2, characterized in that: The first assembly groove includes a second limiting groove wall, which is parallel to the axial direction of the assembly body and is used to abut against the second surface of the first component to limit the first component from moving in a direction perpendicular to the axial direction of the assembly body.

5. The assembly tool according to claim 2, characterized in that: The first assembly groove includes a third limiting groove wall, the elastic member is protruded on the third limiting groove wall, the protruding direction of the elastic member is perpendicular to the axial direction of the assembly body, and the elastic member is used to limit the first component from rotating around the axis of the assembly body.

6. The assembly tool according to claim 1, characterized in that: The elastic member includes an elastic arm and a matching protrusion. The elastic arm is integrally formed on the assembly body. The matching protrusion is arranged on one end of the elastic arm away from the assembly body. The matching protrusion is used for interference fit with the matching hole of the first component.

7. The assembly tool according to claim 6, characterized in that The protruding direction of the matching protrusion is opposite to the notch direction of the second assembly groove.

8. The assembly tool according to claim 2, characterized in that: The second assembly groove is provided on a side surface of an end portion of the assembly body facing away from the first assembly groove.

9. The assembly tool according to claim 8, characterized in that The number of the second assembly grooves is two, and the length directions of the two second assembly grooves are perpendicular to each other.

10. A surgical assisting device, characterized in that: The invention comprises a surgical assisting device body and the assembly tool according to any one of claims 1 to 9, wherein the assembly tool is connected to the surgical assisting device body.

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