TWI864771B - Surgical instrument - Google Patents

Abstract

A surgical instrument including a main body and a push assembly is provided. The main body has an opening. The push assembly includes a pushing component and a driven component. The pushing component is slidably disposed on the main body. The driven component is slidably disposed on the main body and located between the pushing component and the opening, wherein the driven component is adapted to hold an object-to-be-implanted, and the pushing component is adapted to receive a force to slide along the main body and push the driven component, such that the object-to-be-implanted is moved out of the main body through the opening by the driven component.

Description

Surgical instruments

The present invention relates to a surgical instrument, and in particular to a surgical instrument used in implant surgery.

With the development of retinal chip implantation technology, more and more blind or visually impaired patients have improved their vision by implanting chips in the retina. The surgical instruments generally used for retinal chip implantation clamp the chip for implantation, but the chip may be broken and damaged due to the clamping force of the surgical instruments. In addition, since the eyeball has a curvature, when the surgeon uses the surgical instrument to implant the chip into the retina in the eyeball, the surgical instrument may not be operated in accordance with the curvature of the eyeball and may damage the internal tissue of the eyeball.

The present invention provides a surgical instrument, which can avoid the implant from being broken or damaged during implantation surgery and can easily follow the curvature of the affected part for operation.

The surgical instrument of the present invention comprises a main body and a pushing assembly. The main body has an opening. The pushing assembly comprises a pushing member and a driven member. The pushing member is slidably arranged on the main body. The driven member is slidably arranged on the main body and is located between the pushing member and the opening end, wherein the driven member is suitable for carrying an object to be implanted, and the pushing member is suitable for sliding along the main body under force and pushing the driven member, so that the driven member moves the object to be implanted outside the main body through the opening.

In one embodiment of the present invention, the material of the follower is different from that of the pusher, and the material of the follower includes a flexible material.

In one embodiment of the present invention, the main body includes a first component and a second component connected to each other, the pusher is slidably disposed on the first component and is suitable for extending into the second component, the follower is slidably disposed in the second component, and the opening is located at the end of the second component.

In one embodiment of the present invention, the material of the second component is different from the material of the first component, and the material of the second component includes a flexible material.

In one embodiment of the present invention, the material of the second component includes rubber or silicone, and the material of the follower includes metal.

In one embodiment of the present invention, the second component has a coating film thereon.

In one embodiment of the present invention, the second component has scales.

In one embodiment of the present invention, the surface of the pusher has a groove, and an air flow channel is formed between the groove and the main body.

In one embodiment of the present invention, the surgical instrument further comprises a safety pin, wherein the safety pin is adapted to be inserted into the main body to prevent the pusher from sliding along the main body.

In one embodiment of the present invention, the surgical instrument further comprises a safety cover, wherein the safety cover is suitable for being installed on the main body to cover the opening.

Based on the above, in the surgical instrument of the present invention, the object to be implanted is held on the follower of the pushing assembly and can be pushed away from the main body by the user's operation of the pushing assembly, and then reaches the predetermined implantation position in the affected part. That is, the surgical instrument of the present invention does not perform implantation surgery by clamping the object to be implanted, but performs implantation surgery by pushing the object to be implanted, so that the object to be implanted can be prevented from being broken and damaged due to the clamping force. In addition, the pushing assembly of the present invention is not a single component, and is divided into a pushing member for the user to operate and a follower for being pushed by the pushing member. Accordingly, a flexible material different from that of the pusher can be used to make the follower, so that the follower can be bent into a suitable shape before the implantation operation to facilitate the operation in conformity with the curvature of the affected part, thereby reducing the risk of damaging the affected tissue during the operation.

The first figure is a three-dimensional diagram of a surgical instrument according to an embodiment of the present invention. The second figure is an exploded diagram of the surgical instrument in the first figure. Referring to the first and second figures, the surgical instrument 100 of this embodiment includes a main body 110 and a pushing assembly 120. The main body 110 has an opening 114a. The pushing assembly 120 includes a pushing member 122 and a follower 124. The pushing member 122 is slidably disposed on the main body 110 along the axial direction A of the main body 110 and includes a force-bearing portion 1221 and a pushing portion 1222. The follower 124 is also slidably disposed on the main body 110 along the axial direction A of the main body 110, and the follower 124 is located between the pushing member 122 and the opening 114a. The follower 124 is suitable for carrying an implant (such as a retinal chip) through its supporting portion 1241 at its end. The pushing member 122 can slide along the main body 110 through its force-bearing portion 1221 and push the follower 124 through its pushing portion 1222, so that the follower 124 moves the implant to the outside of the main body 110 through the opening 114a.

As described above, in the surgical instrument 100 of the present embodiment, the implant is held on the follower 124 of the pushing assembly 120 and can be pushed away from the main body 110 by the user's operation of the pushing assembly 120, and then reaches a predetermined implantation position (e.g., the lower retina in the eyeball) in the affected part (e.g., the patient's eyeball). That is, the surgical instrument 100 of the present embodiment does not perform the implantation surgery by clamping the implant, but performs the implantation surgery by pushing the implant, so that the implant C can be prevented from being broken or damaged due to the clamping force.

In addition, the pushing assembly 120 of the present embodiment is not a single component, but is divided into a pushing member 122 for operation by a user and a follower 124 for being pushed by the pushing member 122. Accordingly, a flexible material different from the material of the pushing member 122 can be selected to make the follower 124, so that the follower 124 can be bent into a suitable shape before the implantation operation, so as to facilitate the operation in accordance with the curvature of the affected part, thereby reducing the risk of damaging the affected tissue during the operation.

Specifically, in this embodiment, the main body 110 includes a first component 112 and a second component 114 connected to each other. The pusher 122 is slidably disposed in the first component 112, and the follower 124 is slidably disposed in the second component 114, and the opening 114a is located at the end of the second component 114. The pusher 122 can slide along the axial direction A of the main body 110 so that its push portion 1222 extends into the second component 114, thereby pushing the follower 124 as described above.

Furthermore, in this embodiment, in addition to selecting the material of the follower 124 as a flexible material different from the material of the pusher 122 as described above, the material of the second component 114 is also selected as a flexible material different from the material of the first component 112. Accordingly, the second component 114 and the follower 124 therein can bend together. For example, the material of the second component 114 can be rubber or silicone, and the material of the follower 124 can be a metal with good ductility and easy to bend. In addition, the material of the first component 112 and the pusher 122 can be plastic or other appropriate materials, and the present invention is not limited thereto.

In the present embodiment, the surgical instrument 100 further includes a safety pin 130. As shown in the first figure, the safety pin 130 can be inserted into the first component 112 of the main body 110 and fixed to the recess 122a (marked in the second figure) of the pusher 122 to prevent the pusher 122 from sliding along the main body 110 unexpectedly. Accordingly, the safety of the surgical instrument 100 in use can be increased. In addition, the surgical instrument 100 of the present embodiment further includes a safety cover 140, which can be installed on the second component 114 of the main body 110 to cover the opening 114a to prevent the implant from unexpectedly falling from the opening 114a to the outside of the main body 110. In order to make the drawings clearer, the safety cover 140 is shown in the open state in the first and second figures.

The following specifically describes the operation process of the surgical instrument 100 of this embodiment.

FIG. 3 to FIG. 9 illustrate the operation flow of the surgical instrument of an embodiment of the present invention. First, as shown in FIG. 3, a first component 112 and a second component 114 are provided, wherein the first component 112 is provided with a pusher 122 and a safety pin 130, and the second component 114 is provided with a follower 124 and a safety cover 140. Next, the first component 112 and the second component 114 separated from each other as shown in FIG. 3 are assembled to each other, and the implant C (shown in FIG. 5) at the end of the second component 114 is immersed in water for cleaning. In this step, the second component 114 can be filled with water and the air can be discharged to prevent air from entering the affected part during the subsequent surgery.

Then, as shown in the second, fourth and fifth figures, the safety cover 140 is opened and the carrying portion 1241 at the end of the second component 114 is moved away from the safety cover 140. The safety cover 140 of this embodiment is, for example, an integrally formed plastic part, and the user can press the pressing portion 142 along the pressing direction D1 to deform it, so that the cover portion 144 is opened as shown in the fourth figure. After opening the safety cover 140, confirm that the implant C is located at the end of the second component 114 as shown in the fifth figure, and bend the second component 114 and the follower 124 therein to extend a partial section of the second component 114 into the affected part in accordance with the curvature of the affected part.

Then, when the end of the second component 114 has reached the predetermined implantation position in the affected part, the safety pin 130 is pressed along the pressing direction D2 as shown in the sixth to seventh figures and is moved away from the first component 112. Then, as shown in the eighth to ninth figures, the pusher 122 is pressed along the pressing direction D3 to push the follower 124 by the pusher 122, and the implant C is moved out of the end of the second component 114 by the follower 124 and implanted into the predetermined implantation position in the affected part.

FIG. 10 shows that the end of the second component of FIG. 8 is located in the affected part. Please refer to FIG. 10 for details. When the end of the second component 114 is located in the affected part E (the patient's eyeball), since the second component 114 and the follower 124 have been pre-bent as described above, they can extend along the curvature of the affected part as shown in FIG. 10. Therefore, the implant C can be implanted into the predetermined implantation position (the lower retina) without causing damage to the affected part E as much as possible.

In this embodiment, the second component 114 may be coated to reduce the friction between the second component 114 and the follower 124 and the friction between the second component 114 and the implant C during the counting operation. In addition, the second component 114 has a scale 114b as shown in the eighth and ninth figures, so that the user can judge the length of the second component 114 extending into the affected part.

On the other hand, in addition to the method of filling the second component 114 with water and exhausting the air as described above to prevent air from entering the affected area during surgery, the present embodiment can also form a groove 122b (shown in the second figure) on the surface of the push portion 1222 of the pusher 122. An air flow channel is formed between the groove 122b and the first component 112 of the main body 110, so that air can flow through the air flow channel during surgery, further preventing air from entering the affected area.

In summary, in the surgical instrument of the present invention, the object to be implanted is held on the follower of the pushing assembly and can be pushed away from the main body by the user's operation of the pushing assembly, and then reaches the predetermined implantation position in the affected part. That is, the surgical instrument of the present invention does not perform implantation surgery by clamping the object to be implanted, but rather by pushing the object to be implanted, so that the object to be implanted can be prevented from being broken or damaged by the clamping force. In addition, the pushing assembly of the present invention is not a single component, but is divided into a pushing member for the user to operate and a follower for being pushed by the pushing member. Accordingly, a flexible material different from that of the pusher can be used to make the follower, so that the follower can be bent into a suitable shape before the implantation operation to facilitate the operation in conformity with the curvature of the affected part, thereby reducing the risk of damaging the affected tissue during the operation.

100 surgical instrument 110 body 112 first component 114 second component 114a opening 114b scale 120 push component 122 pusher 1221 force bearing part 1222 pusher part 122a recess 122b groove 124 follower 1241 bearing part 130 safety pin 140 safety cover 142 pressing part 144 cover A axial direction C implant to be implanted D1, D2, D3 pressing direction E affected part

The first figure is a three-dimensional diagram of a surgical instrument of an embodiment of the present invention. The second figure is an exploded diagram of the surgical instrument of the first figure. The third figure is a schematic diagram of the operation process of the present invention. The fourth figure is a schematic diagram of the operation process continuing from the third figure. The fifth figure is a schematic diagram of the operation process continuing from the fourth figure. The sixth figure is a schematic diagram of the operation process continuing from the fifth figure. The seventh figure is a schematic diagram of the operation process continuing from the sixth figure. The eighth figure is a schematic diagram of the operation process continuing from the seventh figure. The ninth figure is a schematic diagram of the operation process continuing from the eighth figure. The tenth figure is a diagram of the end of the second component of the eighth figure located in the affected part.

without

100 surgical instrument 110 main body 112 first assembly 114 second assembly 114a opening 120 push assembly 122 pusher 1221 force bearing part 130 safety latch 140 safety cover 142 pressing part 144 cover part A axial direction

Claims (8)

A surgical instrument comprises: a main body having an opening, the main body comprising a first assembly and a second assembly connected to each other; and a pushing assembly comprising a pusher and a follower, the pusher being slidably arranged on the main body, the follower being slidably arranged on the main body and being located between the pusher and the opening, the pusher being slidably arranged on the first assembly and being suitable for extending into the second assembly, the follower being slidably arranged in the second assembly, the opening being located at the end of the second assembly, the surface of the pusher having a groove, and a groove between the groove and the main body. An air flow channel is formed, the follower is suitable for carrying an implant to be implanted, the second component and the follower therein are bent to conform to the curvature of a patient's eyeball, and a partial section of the second component is extended into the patient's eyeball. When the end of the second component has reached the predetermined implantation position in the patient's eyeball, the pusher is suitable for being forced to slide along the main body and push the follower, so that the follower moves the implant to be implanted outside the main body through the opening, so that the implant to be implanted reaches the predetermined implantation position in the patient's eyeball. A surgical instrument as described in claim 1, wherein the material of the follower is different from the material of the pusher, and the material of the follower includes a flexible material. A surgical instrument as described in claim 1, wherein the material of the second component is different from the material of the first component, and the material of the second component includes a flexible material. A surgical instrument as described in claim 1, wherein the material of the second component includes rubber or silicone, and the material of the follower includes metal. A surgical instrument as described in claim 1, wherein the second component has a coating. A surgical instrument as described in claim 1, wherein the second component has a scale. The surgical instrument as described in claim 1 further includes a safety pin, wherein the safety pin is suitable for being inserted into the main body to prevent the pusher from sliding along the main body. The surgical instrument as described in claim 1 further includes a safety cover, wherein the safety cover is suitable for being installed on the main body to cover the opening.

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