TW202139932A - Suture cutting knife used with minimally invasive surgical instrument - Google Patents

Abstract

A suture cutting knife used with minimally invasive surgical instrument includes a clamp hole and a side hole that are in communication for clamping the rod body of the minimally invasive surgical instrument. The main body includes a rod edge and a side edge on two ends along the passing direction of the clamp hole, with a cutting portion formed on the rod edge or the side edge. Upon clamping the rod body, the main body perfectly fits the on the rod body to be positioned thereon, so as to be combined with the rod body, facilitating a conjunction operation of the two. After the seam is complete, excess suture is directed from between the main body and the rod body to the cutting portion, such that the rod body is moved to cut the suture.

Description

Suture cutter for use with minimally invasive surgical instruments

The invention relates to a surgical instrument, in particular to a suture cutting tool used in conjunction with a minimally invasive surgical instrument.

In the process of minimally invasive surgery, the patient only needs to open a few small hole-like wounds, so that the minimally invasive surgical instruments can be inserted into the patient's body. With the endoscopic and imaging technology, the surgeon can clearly see the affected area for the procedure. Surgery, minimally invasive surgery is quite popular at this stage.

When minimally invasive surgery is performed, the surgeon must rely on the use of minimally invasive surgical instruments. Taking the suture of the gastrointestinal wound during the operation as an example, the surgeon usually creates three small hole-shaped wounds on the patient, two of which are for minimally invasive surgery. Needle forceps enter the patient’s body to hold the needle for suture, and the other wound is to allow the endoscope (including lighting) to enter the patient’s body to capture the image of the affected part. The minimally invasive device with the trimming function enters the patient's body to cut the remaining sutures. This method will cause the delay of the operation; another method is to create a small hole-shaped wound on the patient to allow the trimming function. The minimally invasive device enters the patient's body to cut off the remaining sutures, but this method will inevitably cause more wounds on the patient's body.

Therefore, how to solve the above-mentioned minimally invasive surgery problem is the main focus of the present invention.

In order to solve the above-mentioned problems, the present invention provides a suture cutting tool for use with minimally invasive surgical instruments, which can be buckled on the original minimally invasive surgical instruments to increase the function of cutting surgical sutures.

An embodiment of the present invention provides a suture cutting tool, which can be buckled on a minimally invasive surgical instrument for use. The user can hold the manipulating part and use the end of the rod with the actuating part to extend into the patient's body for suture operation. The side openings opened in the radial direction communicate with the button hole. At least one of the side edges is provided with a cutting part. The rod body is buckled into the button hole through the side opening at the position adjacent to the actuating part, so that the body is attached to the positioning rod body. The body is introduced into the cutting part, and the rod body is moved to cut the suture.

In one embodiment, the main body is generally C-shaped and straight cylindrical, and the area covered by the main body slightly exceeds more than half of the face of the shaft when the shaft is positioned.

In one embodiment, both the two end edges and the two side edges have arc lead angles.

In one embodiment, the cutting part is provided at at least one of the two end edges, and the position of the cutting part is close to the side opening.

In one embodiment, the main body has two cutting parts, and the two cutting parts are located symmetrically at the end edges and are respectively close to the two sides of the side opening.

In one embodiment, the cutting part is provided at at least one of the two side edges, and the position of the cutting part is close to the edge of one end of the body.

In one embodiment, the main body has two cutting parts, and the two cutting parts are located symmetrically at the side edges and are respectively close to the end edge of one end of the main body.

In one embodiment, the cutting portion is provided on the end or side edge of the main body and has an inner inclined surface and an outer inclined surface, and a sharp blade portion is formed between the inner inclined surface and the outer inclined surface.

In one embodiment, the main body has two cutting parts, one of the cutting parts is located at one of the two ends and is located close to the side opening, and the other cutting part is located at one of the two edges and located close to the side opening. The edge of one end of the body.

In one embodiment, the main body is integrally formed, and the cutting part is U-shaped.

Thereby, during the process of minimally invasive surgery, the minimally invasive surgical instrument can be fitted with the suture cutting tool of the present invention before it is inserted into the patient's body. Since the suture cutting tool is attached to the rod of the minimally invasive surgical instrument Physically, the minimally invasive surgical instruments will not cause damage to the tissues of the body when operating in the body, and when the operation is completed and the sutures need to be cut, it is only necessary to introduce the excess sutures from between the body and the rod to the cutting The suture can be cut by moving the rod, and the suture and suture cutting can be performed with the same minimally invasive surgical instrument, thereby achieving the effect of speeding up the completion of minimally invasive surgery without increasing the wound.

In order to facilitate the description of the central idea of the present invention expressed in the column of the above-mentioned summary of the invention, specific embodiments are used to express it. Various objects in the embodiment are drawn according to the proportion, size, deformation amount or displacement amount suitable for explanation, rather than drawn according to the proportion of the actual element, which will be described first.

Please refer to Figures 1 to 13, the present invention provides a suture cutting tool for use with minimally invasive surgical instruments. The minimally invasive surgical instrument 100 is connected to a rod 101 and is located at both ends of the rod 101. There is a manipulation portion 102 and an actuation portion 103. The operator can hold the manipulation portion 102 and use the end of the rod 101 with the actuation portion 103 to extend into the patient's body for surgery. The following is the first embodiment described, in which the minimally invasive surgical instrument 100 used is a minimally invasive needle-holding forceps, and the actuating portion 103 is used to hold the needle and draw the suture to suture the wound.

The suture cutting tool includes a body 10, which is integrally formed in this embodiment, and has a button hole 11 and a side opening 12, and the button hole 11 extends along the axial direction of the body 10. The side opening 12 is opened in the radial direction of the main body 10, and the side opening 12 and the button hole 11 are connected. The main body 10 has two end edges 13 and two side edges 14. The two end edges 13 are on the two ends of the main body 10 in the direction in which the button hole 11 penetrates, and the two side edges 14 are on both sides of the main body 10 and the side opening 12 .

In addition, the main body 10 has a cutting part 15, and the cutting part 15 may be at least one of the two end edges 13, or at least one of the two side edges 14. In a preferred embodiment, the main body 10 is generally C-shaped and a straight cylindrical shape, and both end edges 13 and both side edges 14 have arc lead angles. As shown in FIG. 5, the main body 10 is positioned on the rod 101 of the minimally invasive surgical instrument 100. The area covered by the main body 10 when the rod 101 is positioned exceeds more than half of the face of the rod 101 (that is, the rod 101 The length of the peripheral surface), so that the main body 10 can be firmly fixed on the rod body 101 and not easy to fall off.

There are two cutting portions 15 in the main body 10 in this embodiment. In the first embodiment, the two cutting portions 15 are provided at one end edge 13, and the two cutting portions 15 are provided in the The position of the end edge 13 is symmetrical, and the two cutting portions 15 are respectively close to the two side edges 14 of the side opening 12. The cutting portion 15 described in this embodiment is U-shaped, and the end edge 13 provided on the main body 10 has an inner inclined surface 151 and an outer inclined surface 152, and a sharp blade portion 153 is formed on the inner inclined surface 151 and the outer inclined surface 152 rooms. As shown in Figure 5, when the main body 10 is positioned on the rod body 101, as the end edges 13 and both side edges 14 have arc lead angles, there is a gap C between the main body 10 and the rod body 101, allowing the suture The gap C easily extends between the main body 10 and the rod body 101 to facilitate the suture to be introduced into the cutting part 15.

When the main body 10 of the suture cutter is to be installed on the rod body 101 of the minimally invasive surgical instrument 100, the rod body 101 is attached to the position adjacent to the actuating portion 103 and buckled into the button hole 11 through the side opening 12 of the main body 10 At this time, the main body 10 can be fitted and positioned on the rod body 101, and during the operation, the main body 10 can extend into the patient's body along with the end of the rod body 101 with the actuating portion 103. When the main body 10 is positioned on the rod 101, it is customarily installed with the cutting part 15 facing away from the actuating part 103. When the cutting part 15 is used to cut the suture, the rod 101 is pulled out to perform the action.

As shown in FIG. 6, after the second minimally invasive surgical instrument 100 has sutured the wound A in the patient's body with suture B, the operator can hold the remaining part 103 of the minimally invasive surgical instrument 100 The suture B is introduced into the cutting part 15 from between the main body 10 of another minimally invasive surgical instrument 100 and its shaft 101. Then the operator only needs to use the minimally invasive surgical instrument After 100 is drawn out, the rod body 101 can be moved to face the suture B with the cutting part 15 and the suture B is cut as shown in FIG. 7 to complete the suture operation of the wound A.

From the above description, it is not difficult to find that the characteristics of the present invention are:

1. The suture cutting tool of the present invention is specifically improved to match the original functions of minimally invasive surgical instruments. It is an add-on surgical instrument with deep design functions. It can be installed on any microscopic surgical instrument with a rod. Wound surgical instruments. In the process of minimally invasive surgery, before the minimally invasive surgical instrument 100 is inserted into the patient's body, the main body 10 can be installed on the rod body 101 adjacent to the actuating part 103, which functions like surgical scissors, and can be used to suture the wound. After the action is completed, it is used to cut off the excess suture B. Compared with the conventional technique, scissors must be used to enter the affected area and cut the suture B before taking it out. The present invention uses the same minimally invasive surgery that is originally in the patient's body. The device 100 performs the operation of suture and suture B cutting together, which can achieve the effect of speeding up the completion of minimally invasive surgery without increasing the wound.

2. Since the main body 10 is attached to the shaft 101 of the minimally invasive surgical instrument 100, the main body 10 is integrated and linked on the shaft 101, that is, the cutting part 15 is adjacent to the shaft surface of the shaft 101 without protruding outside, Therefore, when the minimally invasive surgical instrument 100 is operated in a patient's body, the main body 10 will not cause damage to the tissues in the body.

3. When the operation is completed, you only need to introduce the excess suture B from between the main body 10 and the rod 101 to the cutting part 15, and then move the rod 101 to bring the main body 10 to the cutting part 15 B cut, in which the rod body 101 is moved back in the extraction direction to cut the suture B, which can avoid accidentally injuring the tissues around the affected part.

4. The same body 10 has two symmetrical cutting parts 15 design, which allows the operator to select a cutting part 15 in a preferred direction to cut the suture during the operation, making the cutting action of the suture B more convenient.

5. After the main body 10 is positioned on the rod body 101, it can be detached from the rod body 101. Therefore, the main body 10 can be autoclaved and can also be of a disposable design. .

6. The main body 10 has a design of a cutting part 15. In addition to the operation of cutting the suture B, it can also be used to cut the adhered tissue when necessary to increase the function of the present invention.

There are still different embodiments of the present invention. As shown in Figs. 8 to 10, they are the suture cutting tool of the second embodiment of the present invention. It has a body 10 like the first embodiment, and also has a button hole 11 and a side The opening 12, the two end edges 13, the two side edges 14 and the two cutting parts 15 are different from the first embodiment in that the two cutting parts 15 of the second embodiment are all set at the end edge 13. The other is provided on the side edge 14, wherein the cutting portion 15 provided on the end edge 13 is located close to the side opening 12, and the other cutting portion 15 provided on the side edge 14 is located close to the end edge 13 of one end of the body 10, and Two cutting parts 15 are provided on the main body 10 on opposite sides.

As shown in FIG. 9, after the two minimally invasive surgical instruments 100 are used to suture the wound A in the patient's body with sutures B, the operator can use one of the minimally invasive surgical instruments 100 as in the first embodiment. The actuating portion 103 clamps the remaining suture B, and in this embodiment, the suture B is introduced from between the main body 10 and the rod 101 of another minimally invasive surgical instrument 100 to be positioned at the side edge 14. In the cutting part 15, then the operator only needs to move the minimally invasive surgical instrument 100 along the cutting direction of the cutting part 15, that is, the cutting part 15 can face the suture B, and the suture B can be cut as shown in FIG. , The suture action of wound A can be completed.

It can be seen from the description of the second embodiment that the cutting portion 15 of the main body 10 of this embodiment is provided at the edge 13 and the side edge 14 respectively. In addition to achieving the same effect as the first embodiment, it also The operator can select the cutting part 15 of the edge 13 or the side edge 14 to cut the suture B at the affected part. Therefore, the cutting of the suture B after the suture is completed can be provided by the cutting part 15 in different positions. Better flexibility and convenience in operation.

As shown in FIG. 11, it is the suture cutting tool of the third embodiment of the present invention. It has a main body 10 like the second embodiment, which also has button holes 11, side openings 12, two end edges 13, and two side edges. 14 and two cutting parts 15, the second cutting part 15 of this embodiment is also one set at the end edge 13, and the other is set at the side edge 14, where the cutting part 15 at the end edge 13 is located at the position Close to the side opening 12, another cutting portion 15 provided on the side edge 14 is located close to the end edge 13 of one end of the main body 10. The main difference from the second embodiment is that the two cutting portions 15 are positioned relative to the main body 10. Set the position on the same side, the action of cutting the suture B can be implemented alternatively as in the first and second embodiments, and the same effect as the first embodiment can be achieved, and the operator can choose the edge of the affected part. 13 or the cutting portion 15 of the side edge 14 cuts the suture B after the stitching is completed, so that the cutting portion 15 in different positions can be used to provide better flexibility and convenience in operation as described in the second embodiment.

As shown in FIG. 12, it is the suture cutting tool of the fourth embodiment of the present invention. It has a main body 10 like the first embodiment, and also has button holes 11, side openings 12, two end edges 13, and two side edges. 14 and the two cutting portions 15, but the main difference from the first embodiment is that the second cutting portion 15 of this embodiment is set on both side edges 14, and the two cutting portions 15 are located at the side edge 14 position. It is also symmetrical. The two cutting parts 15 are respectively close to the end edge 13 of one end of the main body 10, and the action of cutting the suture B can be the same as that of the second embodiment. Although the position of the cutting part 15 on the main body 10 is different in this embodiment and the previous embodiment, by the operation of the minimally invasive surgical instrument 100, the suture B can also be cut by the cutting part 15 of the side edge 14 to achieve The same effect as the first embodiment.

As shown in FIG. 13, it is the suture cutting tool of the fifth embodiment of the present invention. It has a body 10 like the first embodiment, and also has button holes 11, side openings 12, two end edges 13, and two side edges. 14. However, the main difference from the previous embodiment is that the main body 10 in this embodiment has cutting portions 15 at four places. Two of the cutting portions 15 are provided at both ends 13, and the other two cutting portions 15 are provided at On both side edges 14, the cutting parts 15 provided at two end edges 13 are located close to the side opening 12 and are opposite; the cutting parts 15 provided at two side edges 14 are located close to the end edge 13 of the main body 10 and opposite to each other. set up. The suture cutting tool of this embodiment can be operated like the minimally invasive surgical instrument 100 of the previous embodiment, and can also cut the suture B by any cutting portion 15 of the end edge 13 or the side edge 14, so as to achieve the same as that of the previous embodiment. The efficacy of the statement.

From the above description of the first to fifth embodiments, it can be seen that the main body 10 of the suture cutting tool of the present invention can be provided on the end edge 13 as in the first embodiment with two cutting parts 15 or as in the second embodiment. , The third embodiment has two cutting parts 15 on the opposite sides or on the same side, respectively, on the end edge 13 and the side edge 14, or as in the fourth embodiment, there are two cutting parts 15 on the side edge 14 , Or as in the fifth embodiment, there are four cutting portions 15 provided on the end edge 13 and the side edge 14, respectively. These embodiments only illustrate the different implementations of the suture cutting tool of the present invention, but the present invention is not only Limited to these embodiments, any body 10 provided with cutting portions 15 on both end edges 13 and/or both side edges 14, regardless of the difference in the number and/or position of the body 10, all belong to the present invention The scope of protection.

The above-mentioned embodiments are only used to illustrate the present invention, and are not used to limit the scope of the present invention. All modifications or changes made without violating the spirit of the present invention fall within the scope of the present invention's intended protection.

100: Minimally invasive surgical instruments 101: Rod body 102: Control Department 103: Acting Department 10: body 11: Buttonhole 12: side opening 13: End edge 14: Side edge 15: Cutting part 151: Inner Bevel 152: Outer Bevel 153: Blade A: Wound B: suture C: gap

Fig. 1 is a schematic diagram of the use state of the suture cutting tool installed in a minimally invasive surgical instrument according to the first embodiment of the present invention. 2 is a schematic diagram of the installation of the suture cutting tool in the minimally invasive surgical instrument according to the first embodiment of the present invention. Fig. 3 is a perspective view of the suture cutting tool of the first embodiment of the present invention. Fig. 4 is a cross-sectional structure diagram of the suture cutting tool of the first embodiment of the present invention. Fig. 5 is a schematic plan view of the first embodiment of the present invention when the suture cutting tool is installed on the rod of the minimally invasive surgical instrument. Fig. 6 is a schematic diagram of the state of use when the suture cutting tool of the first embodiment of the present invention is installed on the rod of a minimally invasive surgical instrument. Fig. 7 is a diagram of the suture of Fig. 6 being drawn out from the rod body of the minimally invasive surgical instrument and being introduced into the cutting part to be cut. Fig. 8 is a perspective view of the suture cutting tool of the second embodiment of the present invention. Fig. 9 is a schematic diagram of the state of use when the suture cutting tool of the second embodiment of the present invention is installed on the rod of a minimally invasive surgical instrument. Fig. 10 is a diagram showing the suture of Fig. 9 is drawn out from the shaft of the minimally invasive surgical instrument and cut by the cutting part. Fig. 11 is a perspective view of the suture cutting tool of the third embodiment of the present invention. Figure 12 is a perspective view of the suture cutting tool of the fourth embodiment of the present invention. Fig. 13 is a perspective view of the suture cutting tool of the fifth embodiment of the present invention.

101: Rod body

103: Acting Department

10: body

11: Buttonhole

12: side opening

13: End edge

14: Side edge

15: Cutting part

Claims (10)

A suture cutting tool for use with minimally invasive surgical instruments. The minimally invasive surgical instrument has a rod body with a control part and an actuation part at both ends respectively. The operator can hold the control part and hold the rod body. One end of the actuating part extends into the patient's body for suture operation. The suture cutting tool includes a body with a button hole pierced in the axial direction and a side opening opened in the radial direction. The side opening communicates with the button hole, the body has one end edge on both ends of the button hole penetration direction, and the body has one side edge on both sides of the side opening. At least one of the two side edges is provided with a cutting part, and the rod body is buckled into the button hole through the side opening at a part adjacent to the actuating part to allow the body to conform and position the rod body. The excess after the suture operation The suture can be introduced into the cutting part from between the main body and the rod, and the rod can be moved to cut the suture. The suture cutting tool for use with minimally invasive surgical instruments according to claim 1, wherein the body is generally C-shaped and has a straight cylindrical shape, and the range covered by the body when the rod is positioned slightly exceeds the rod More than half of the face. The suture cutting tool used with minimally invasive surgical instruments as described in claim 2, wherein the two edges and the two edges both have arc lead angles. The suture cutting tool used with minimally invasive surgical instruments according to claim 3, wherein the cutting part is provided at at least one of the two end edges, and the cutting part is located close to the side opening. The suture cutting tool for use with minimally invasive surgical instruments according to claim 4, wherein the main body has two cutting parts, and the two cutting parts are symmetrically located at the end edge of the body and are respectively close to the side Both sides of the opening. The suture cutting tool used with minimally invasive surgical instruments according to claim 3, wherein the cutting part is provided at at least one of the two side edges, and the position of the cutting part is close to the end edge of one end of the body. The suture cutting tool for use with minimally invasive surgical instruments according to claim 6, wherein the body has two cutting parts, and the two cutting parts are located symmetrically at the side edges and are respectively close to one end of the body The end edge. The suture cutting tool for use with minimally invasive surgical instruments according to claim 1, wherein the cutting part is provided on the end edge or the side edge of the body and has an inner bevel and an outer bevel, and is located in the inner A sharp blade part is formed between the inclined surface and the outer inclined surface. The suture cutting tool for use with minimally invasive surgical instruments according to claim 3, wherein the body has two cutting parts, one of which is provided at one of the two end edges and is located close to the side opening , The other cutting part is arranged at one of the two side edges and is located close to the end edge of one end of the body. The suture cutting tool used with minimally invasive surgical instruments according to claim 1, wherein the body is integrally formed, and the cutting part is U-shaped.

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