CN107334539B - Surgical instrument of surgical robot and surgical robot - Google Patents

Abstract

The present invention provides a surgical instrument of a surgical robot and the surgical robot, the surgical instrument of the surgical robot includes: the device comprises a first driving part, a support shaft and a first transmission rod; the supporting shaft is connected with the first driving part and is provided with a first gear; one end of the first transmission rod is provided with a second gear, and the other end of the first transmission rod is connected with the operation executing part through a connecting piece; the first gear is meshed with the second gear, the supporting shaft is located below the side of the first transmission rod, the first driving portion drives the supporting shaft to rotate so as to drive the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the first transmission rod to rotate so as to drive the operation executing portion to rotate. The surgical instrument for the surgical robot is simple in structure, can effectively reduce the volume of the surgical instrument, is flexible in rotation mode, enables the surgical execution part to quickly and accurately execute surgical operation according to instructions sent by a doctor in a limited space, and ensures smooth operation.

Description

Surgical instrument of surgical robot and surgical robot

Technical Field

The invention relates to the technical field of surgical robots, in particular to a surgical instrument of a surgical robot and the surgical robot.

Background

With the development of minimally invasive surgery and artificial intelligence, robot-assisted minimally invasive surgery is becoming one of the development trends of minimally invasive surgery. On one hand, the robot-assisted minimally invasive surgery can eliminate the limitation of the traditional minimally invasive surgery technology to a great extent and realize functions such as remote surgery, and on the other hand, the operation cost of the existing robot-assisted minimally invasive surgery is higher and the operation efficiency needs to be improved. Therefore, how to improve the flexibility and accuracy of the operation of the minimally invasive surgical robot and improve the versatility with the traditional minimally invasive surgical instrument becomes one of the technical problems to be solved urgently in the development and popularization of the robot-assisted minimally invasive surgical operation.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, a first object of the present invention is to provide a surgical instrument for a surgical robot.

A second object of the present invention is to provide a surgical robot.

In view of the above, according to a first object of the present invention, there is provided a surgical instrument for a surgical robot, for use in a minimally invasive surgical robot, the surgical instrument for the surgical robot comprising: the device comprises a first driving part, a support shaft and a first transmission rod; the supporting shaft is connected with the first driving part and is provided with a first gear; one end of the first transmission rod is provided with a second gear, and the other end of the first transmission rod is connected with the operation executing part through a connecting piece; the first gear is meshed with the second gear, the supporting shaft is located below the side of the first transmission rod, the first driving portion drives the supporting shaft to rotate so as to drive the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the first transmission rod to rotate so as to drive the operation executing portion to rotate.

The surgical instrument of the surgical robot provided by the invention is connected with the surgical executing part through the first transmission rod, and drives the first transmission rod to rotate through the first driving part so as to drive the surgical executing part to rotate; the surgical instrument of the surgical robot has a simple structure, can effectively reduce the volume of the surgical instrument of the surgical robot, and has flexible rotation mode, so that the surgical execution part can quickly and accurately complete the instruction sent by a doctor in a limited space, and the smooth operation is ensured; the driving part drives the supporting shaft to rotate, and the supporting shaft and the first transmission rod are in gear transmission, so that the transmission accuracy and stability are effectively ensured, and the phenomenon that the supporting shaft idles to prevent the surgical instrument from rotating to a preset position is avoided; and, first transfer line can be connected with multiple operation execution portion, and then realizes the drive to multiple operation execution portion, has promoted surgical robot's surgical instruments's commonality effectively.

In addition, the surgical instrument of the surgical robot in the above technical solution provided by the present invention may further have the following additional technical features:

in the above technical solution, preferably, the connecting member includes: the first connecting piece, the first connecting pin and the second connecting piece; one end of the first connecting piece is at least partially sleeved on the first transmission rod; the first connecting pin is inserted on the first transmission rod and the first connecting piece along the radial direction of the first transmission rod so as to prevent the first connecting piece from rotating relative to the first transmission rod; one end of the second connecting piece is rotatably connected with the other end of the first connecting piece through a first pin shaft, and the other end of the second connecting piece is connected with the operation executing part through a second pin shaft; the first pin shaft and the second pin shaft are perpendicular to each other.

In the technical scheme, one end of the first connecting piece is at least partially sleeved on the first transmission rod and is radially inserted into the first connecting piece and the first transmission rod through the first pin shaft, so that the first connecting piece cannot relatively rotate or slide relative to the first transmission rod, the first connecting piece is effectively fixed, the processing amount of the first transmission rod is reduced by arranging the first connecting piece, and the straightness of the first transmission rod is effectively ensured; the second connecting piece is rotatably connected with the first connecting piece, so that other movement modes of the operation executing part cannot be influenced in the rotating process of the operation executing part; through setting up first round pin axle into perpendicular to second round pin axle for operation execution portion has the degree of freedom of two mutually perpendicular's direction, and then makes operation execution portion rotate more nimble, is convenient for the operation of doctor to operation execution portion.

In any of the above technical solutions, preferably, the surgical instrument of the surgical robot further includes: a second drive rod and a drive rod; the second transmission rod is embedded in the first transmission rod; one end of the driving rod is rotatably connected with one end of the second driving rod, and the other end of the driving rod is rotatably connected with the second connecting piece through a third pin shaft; the third pin shaft is parallel to the first pin shaft, and when the second transmission rod reciprocates, the second connecting piece is driven to rotate around the first pin shaft.

According to the technical scheme, the second transmission rod is embedded into the first transmission rod, so that the size of a surgical instrument of the surgical robot is reduced, and the space occupation of the surgical instrument of the surgical robot is effectively reduced; through setting up the actuating lever to rotate the one end of actuating lever and second transfer line and be connected, the other end and the second connecting piece of actuating lever are rotated and are connected, and the second connecting piece rotates through first round pin axle with first connecting piece and is connected, so when second transfer line is reciprocating motion, can drive the actuating lever and do reciprocating motion, and then drive the second connecting piece and rotate around first round pin axle, and because third round pin axle is parallel with first round pin axle, guaranteed pivoted flexibility.

In any of the above technical solutions, preferably, the surgical instrument of the surgical robot further includes: the guide block is embedded in the first transmission rod; the guide block is provided with the guide way along the axis direction of first drive lever, and the actuating lever inlays in the guide way.

In this technical scheme, through setting up the guide block to inlay the actuating lever in the guide way of guide block, the guide block plays the effect of direction to the actuating lever, has guaranteed the accuracy of actuating lever direction of motion and the stability of motion effectively.

In any of the above technical solutions, preferably, the surgical instrument of the surgical robot further includes: the first screw, the second driving part and the first slide block; the first screw rod is parallel to the second transmission rod; the second driving part is connected with the first screw rod to drive the first screw rod to rotate; the first sliding block is sleeved on the first screw rod and reciprocates along the axial direction of the first screw rod along with the rotation of the first screw rod; the first sliding block is connected with the second transmission rod to drive the second transmission rod to reciprocate along the axis direction.

In the technical scheme, the second driving part drives the first screw to rotate, the first screw is matched with the first sliding block to drive the first sliding block to reciprocate along the first screw, the first sliding block is connected with the second transmission rod, and the second transmission rod reciprocates along with the movement of the first sliding block, so that the driving of the operation executing part is realized; the screw rod passes through threaded connection with the slider, and the rotation through first screw rod drives first slider reciprocating motion, and every rotation of first screw rod is a week, and first slider only moves the distance of a pitch, and this also makes the control to the motion of first slider more accurate, and then ensures the accuracy of the control to the operation execution portion. The first screw rod can be replaced by a screw rod, and the same effect as the first screw rod can be achieved.

In any of the above technical solutions, preferably, the surgical instrument of the surgical robot further includes: a third transmission rod and a connecting rod; the third transmission rod is embedded in the second transmission rod; one end of the connecting rod is connected with one end of the third transmission rod, and the other end of the connecting rod is connected with the operation executing part through the transition rod so as to drive the operation executing part.

In the technical scheme, the third transmission rod is embedded in the second transmission rod, so that the volume of a surgical instrument of the surgical robot is further reduced; the third transmission rod is connected with the operation execution part through a connection rod, the connection rod is a soft rod and has certain strength and can bear certain axial force, the connection rod can be bent when being subjected to radial force and cannot be bent when being only subjected to the axial force, the connection rod can avoid influencing the rotation of the operation execution part around the first pin shaft and cannot influence the driving of the third transmission rod on the operation execution part, and the stability of the movement of the operation execution part on each degree of freedom is ensured; in particular, the connecting rod may be a steel wire.

In any one of the above technical solutions, preferably, the connecting rod is sleeved with a first spring, and the first spring is clamped at two ends of the connecting rod.

In the technical scheme, the first spring is arranged on the connecting rod, so that the connecting rod can automatically reset along with disappearance of radial force after being bent, and the connecting rod is ensured to be always in a straightening state; when the connecting rod is subjected to axial force, the bending strength of the connecting rod can be enhanced, the driving accuracy of the operation executing part is ensured, and the situation that the operation executing part cannot reach a preset position due to the bending of the connecting rod is avoided.

In any of the above technical solutions, preferably, the operation performing part is an opening and closing instrument, the opening and closing instrument includes a first body and a second body, the first body and the second body are arranged in a crossed manner, and a crossing of the first body and the second body is rotatably connected with the second pin; the transition rod comprises a first transition rod and a second transition rod, one end of the first transition rod and one end of the second transition rod are rotatably connected with the connecting rod, the other end of the first transition rod is rotatably connected with the first body, and the other end of the second transition rod is rotatably connected with the second body; wherein, the opening and closing apparatus is opened or closed along with the reciprocating motion of the third transmission rod.

In this technical scheme, the first body and the second body of the apparatus that opens and shuts are articulated through the second round pin axle, and first transition pole and second transition pole are connected with the afterbody of first body and second body respectively for a quadrangle is constituteed to first transition pole, second transition pole, first body and second body, and when the third transfer line was reciprocating motion, drive first transition pole and second transition pole and open or closed, and then drive the apparatus that opens and shuts and open or close, has realized the drive to the apparatus that opens and shuts.

In any of the above technical solutions, preferably, the operation performing part is an electric hook, and the electric hook is rotatably connected with the second pin shaft; the transition pole includes: a third transition bar, a fourth transition bar, and a fifth transition bar; one end of the third transition rod and one end of the fourth transition rod are rotatably connected with the connecting rod, the other end of the third transition rod is rotatably connected with the operation execution part, the other end of the fourth transition rod is rotatably connected with one end of the fifth transition rod, and the other end of the fifth transition rod is rotatably connected with the second pin shaft. When the third transmission rod reciprocates, the electric hook is driven to rotate around the second pin shaft.

In this technical scheme, when operation execution portion is the electric hook, the third transition pole, the fourth transition pole, a quadrangle is constituteed with operation execution portion to fifth transition pole, third transition pole and fourth transition pole rotate with the connecting rod to be connected, fifth transition pole and operation execution portion are articulated with second round pin axle, when the connecting rod is reciprocating motion, it rotates around second round pin axle to drive operation execution portion, the degree of freedom of operation execution portion has further been increased, make the motion of operation execution portion more nimble, and then make the operation of doctor to operation execution portion more convenient.

In any of the above technical solutions, preferably, the surgical instrument of the surgical robot further includes: the second screw, the third driving part and the second slide block; the second screw rod is parallel to the third transmission rod; the third driving part is connected with the second screw rod to drive the second screw rod to rotate; the second sliding block is sleeved on the second screw rod and reciprocates along the axial direction of the second screw rod along with the rotation of the second screw rod; the second sliding block is connected with the third transmission rod to drive the third transmission rod to reciprocate along the axis direction.

In the technical scheme, the third driving part drives the second screw rod to rotate, the second sliding block is in threaded connection with the second screw rod and reciprocates along the axis of the screw rod along with the rotation of the second screw rod, and the second sliding block is connected with the third transmission rod so as to drive the third transmission rod to reciprocate along the axial direction; the second sliding block is driven to reciprocate by the rotation of the second screw rod, and the second sliding block only moves by the distance of one screw pitch when the second screw rod rotates for one circle, so that the movement of the second sliding block is controlled more accurately, and the accuracy of the control of the operation executing part is further ensured.

In any one of the above aspects, preferably, the first driving unit includes: the clamping device comprises a motor, a connecting shaft and a clamping hoop; the motor is provided with an output shaft; the connecting shaft is of a tubular structure, and one end of the connecting shaft is sleeved on an output shaft of the motor; wherein, one end of the connecting shaft sleeved on the output shaft is provided with at least one opening along the axial direction of the connecting shaft; the clamping hoop is sleeved on the connecting shaft so as to clamp the connecting shaft on the output shaft.

In the technical scheme, the connecting shaft is clamped on the output shaft of the motor through the clamping hoop, so that the connection between the connecting shaft and the output shaft is realized, the coaxiality of the connecting shaft and the output shaft is good due to the connection mode, the stability of power transmission is ensured, vibration and noise generated in the transmission process are effectively avoided, and the stability of a product is ensured.

In any of the above technical solutions, preferably, the surgical instrument of the surgical robot further includes: the number of the first connecting discs is three, and the first connecting discs are respectively connected with one ends of the support shaft, the first screw rod and the second screw rod; the first driving section further includes: a second connecting disc and a second connecting pin; the second connecting disc is sleeved at the other end of the connecting shaft; the second connecting pin penetrates through the second connecting disc and the connecting shaft along the radial direction of the connecting shaft; the inner wall of the second connecting disc is provided with a slideway, and the second connecting pin is embedded in the slideway so that the second connecting disc can slide along the axis direction relative to the connecting shaft; the second connecting disc is connected with the first connecting disc, one of the second connecting disc and the first connecting disc is provided with a groove, the other one of the second connecting disc and the first connecting disc is provided with a bulge, and the groove is matched with the bulge so that the second connecting disc drives the first connecting disc to rotate.

In the technical scheme, the second connecting disc is connected with the connecting shaft, and the second connecting disc is limited to rotate relative to the connecting shaft through the second connecting pin, so that the second connecting disc can rotate along with the rotation of the connecting shaft, one of the second connecting disc and the first connecting disc is provided with a groove, the other one of the second connecting disc and the first connecting disc is provided with a bulge, and the groove is matched with the bulge, so that the second connecting disc can drive the first connecting disc to rotate, and further the supporting shaft, the first screw rod or the second screw rod is driven to rotate; the connection mode is simple in structure and convenient to connect, is convenient to detach and install, and effectively improves the universality of the first driving part. The shape of the cross section of the protrusion can be a straight line or a cross, and the protrusion can be irregular as long as the first connecting disc can be driven to rotate by the second connecting disc.

In any one of the above technical solutions, preferably, the first driving part further includes: and the second spring is sleeved on the connecting shaft and clamped between the clamping hoop and the second connecting disc so as to enable the second connecting disc to be automatically reset.

In this technical scheme, through set up the second spring on the connecting axle to the joint does not need manual adjustment position in the installation between binding clip and the second connection pad between make first connection pad and the second connection pad, as long as protruding and recess cooperation back, under the thrust effect of second spring, the second connection pad can be laminated mutually with first connection pad voluntarily, and then drives first connection pad and rotate.

In any of the above-described aspects, the second driving unit is preferably identical to the first driving unit, and the third driving unit is preferably identical to the first driving unit.

In this technical scheme, through set up second drive division and third drive division as the drive division the same with first drive division, promoted the commonality between three drive divisions effectively.

In any of the above technical solutions, preferably, the surgical instrument of the surgical robot further includes: the first bracket is U-shaped and comprises a first side wall, a second side wall and a bottom wall; the first transmission rod penetrates through the first side wall and then is connected with the first connecting piece; one end of the first screw rod penetrates through the first side wall and then is connected with the first connecting disc, and one end of the first screw rod is rotatably connected with the second side wall; one end of the second screw penetrates through the first side wall and then is connected with the first connecting disc, and one end of the second screw is rotatably connected with the second side wall; the supporting shaft penetrates through the first side wall and then is connected with the first connecting disc.

In the technical scheme, the first screw rod, the second screw rod, the first transmission rod, the second transmission rod and the third transmission rod are supported by the first support, so that the partial structure forms an integral transmission part, in the operation process, if the operation execution part needs to be replaced, a doctor can directly replace the transmission part provided with different operation execution parts, the replacement of the operation execution part can be realized, the replacement speed is high, and the replacement mode is simple and convenient.

In any of the above technical solutions, preferably, the surgical instrument of the surgical robot further includes: the first driving part, the second driving part and the third driving part are fixed on the second support, and the second support is clamped with the first support so that the first driving part drives the supporting shaft, the second driving part drives the first screw rod, and the third driving part drives the second screw rod.

In the technical scheme, the first driving part, the second driving part and the third driving part are fixed on the second support, so that the connection between the transmission part and the driving part can be realized only by installing the first support on the second support in the using process of the surgical instrument of the surgical robot, and the universality of the first driving part, the second driving part and the third driving part can be further improved.

In any of the above technical solutions, preferably, the second bracket is provided with a limiting part, the limiting part is L-shaped, the edge of the second bracket extends along the length direction of the second bracket, and the limiting part and the bottom wall of the second bracket enclose a limiting groove opening to the inner side of the second bracket; be provided with the spacing arch with spacing groove matched with on the first support, spacing arch inlays in the spacing groove.

In the technical scheme, the first support and the second support are positioned in the vertical direction by matching the limiting groove with the limiting protrusion, and when the first support is assembled with the second support, the limiting protrusion slides into the limiting groove along the extending direction of the limiting groove, so that the first support can be positioned, the structure is simple, and a doctor can conveniently install and disassemble surgical instruments of the surgical robot; the limiting groove can also be arranged on the first bracket, and the limiting bulge is arranged on the second bracket.

In any one of the above technical solutions, preferably, the upper surface of the bottom wall of the second support is matched with the lower surface of the bottom wall of the first support, one of the upper surface of the bottom wall of the second support and the lower surface of the bottom wall of the first support is provided with a positioning protrusion protruding from the surface, and the other one is provided with a positioning groove matched with the positioning protrusion.

In this technical scheme, through setting up location arch and constant head tank, the horizontal location between first support and second support is realized with the constant head tank cooperation to the location arch, ensures the accuracy of first support position on the horizontal direction.

In any of the above technical solutions, preferably, the first support is provided with a positioning pin, and the positioning pin is clamped on the first support through a third spring; the second bracket is provided with a positioning hole, and the positioning pin is embedded in the positioning hole; the handle is arranged on the positioning pin and used for pulling and inserting the positioning pin.

In the technical scheme, the positioning pin is arranged on the first support and embedded in the positioning hole arranged on the second support, so that the first support is prevented from being separated from the limiting groove and the positioning groove, and the accuracy of the second support for positioning the first support is ensured; the positioning pin is clamped on the first support through the spring, so that the positioning pin is always kept in the positioning hole in the second support when not under the action of external force, and the positioning pin is prevented from falling out of the positioning hole; through setting up the handle, be convenient for pull out and insert the locating pin.

In any of the above technical solutions, preferably, the surgical implement includes scissors, graspers, electric hooks, separation forceps, ultrasonic blade, and needle holder; wherein the scissors, the grasping forceps, the separating forceps and the needle holder are open-close instruments.

According to a second object of the present invention, there is provided a surgical robot, wherein the surgical robot includes a surgical instrument of the surgical robot according to any one of the above-mentioned technical solutions, and therefore, the surgical robot includes all the advantageous effects of the surgical instrument of the surgical robot according to any one of the above-mentioned technical solutions.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic structural view of a surgical instrument of a surgical robot according to an embodiment of the present invention;

FIG. 2 is an enlarged partial view of a surgical instrument of the surgical robot illustrated in FIG. 1 at A in accordance with one embodiment of the present invention;

FIG. 3 is an enlarged partial view of a surgical instrument of the surgical robot illustrated in FIG. 1 at B in accordance with one embodiment of the present invention;

FIG. 4 shows a schematic view of a driving part according to an embodiment of the present invention;

FIG. 5 shows a cross-sectional view of a drive portion according to one embodiment of the present invention;

fig. 6 shows a schematic structural view of a surgical instrument of a surgical robot according to another embodiment of the present invention;

FIG. 7 is an enlarged partial view of a surgical instrument of the surgical robot illustrated in FIG. 6 in accordance with another embodiment of the present invention at C;

FIG. 8 is a schematic view of the drive configuration of a second drive link according to one embodiment of the present invention;

FIG. 9 is an enlarged fragmentary view at D of the drive configuration of the second drive link illustrated in FIG. 8 in accordance with one embodiment of the present invention;

FIG. 10 illustrates a schematic diagram of the transmission structure of the opening and closing instrument according to one embodiment of the present invention;

FIG. 11 is an enlarged partial view of the opening and closing instrument of FIG. 10 at E according to one embodiment of the present invention;

FIG. 12 illustrates a schematic view of a transmission structure of an electric hook according to an embodiment of the present invention;

FIG. 13 is an enlarged partial view of the electrical hook of FIG. 12 at F according to one embodiment of the present invention;

FIG. 14 shows a schematic view of a first bracket according to an embodiment of the invention;

FIG. 15 shows a schematic view of a second bracket according to an embodiment of the invention;

FIG. 16 shows a schematic view of a stent according to an embodiment of the invention;

FIG. 17 is a cross-sectional view G-G of the stent of FIG. 16 according to one embodiment of the present invention;

wherein, the correspondence between the reference numbers and the part names in fig. 1 to 17 is:

102 a first transmission rod, 104 a first gear, 106 a support shaft, 108 a first slider, 110 a first screw, 112 a second slider, 114 a second screw, 116 a second gear, 118 a first connecting disc, 120 a first connecting member, 122 a second connecting member, 124 a surgical implement, 126 a first driving part, 1262 a second connecting disc, 1264 a connecting shaft, 1266 a second spring, 1268 a clamp, 1269 a motor, 128 a second driving part, 130 a third driving part, 132 a second transmission rod, 134 a third transmission rod, 136 a driving rod, 138 a guide block, 140 a connecting rod, 142 a first spring, 144 a first body, 146 a second body, 148 a first transition rod, 150 a second transition rod, 152 an electric hook, 154 a third transition rod, 156 a fourth transition rod, 158 a fifth transition rod, 160 a first bracket, 1602 a first side wall, a positioning hole, a second side wall, 1066 a limiting protrusion, 162 a second bracket, 1622 a limiting part, 1624 a positioning protrusion, 1626, 164 a handle, pin 166 and pin 168, a third spring.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Surgical instruments and surgical robots of the surgical robot according to some embodiments of the present invention are described below with reference to fig. 1 to 17.

In an embodiment of the first aspect of the present invention, as shown in fig. 1 to 5, the present invention provides a surgical instrument of a surgical robot for a surgical robot, the surgical instrument of the surgical robot including: the first driving portion 126, the support shaft 106, and the first transmission lever 102; the supporting shaft 106 is connected with the first driving part 126, and the first gear 104 is arranged on the supporting shaft 106; one end of the first transmission rod 102 is provided with a second gear 116, and the other end of the first transmission rod 102 is connected with the operation executing part 124 through a connecting piece; the first gear 104 is engaged with the second gear 116, the supporting shaft 106 is located below the side of the first transmission rod 102, the first driving portion 126 drives the supporting shaft 106 to rotate, so as to drive the first gear 104 to rotate, the first gear 104 drives the second gear 116 to rotate, and the second gear 116 drives the first transmission rod 102 to rotate, so as to drive the operation executing portion 124 to rotate.

In this embodiment, the first transmission rod 102 is connected to the operation executing portion 124, and the first driving portion 126 drives the first transmission rod 102 to rotate, so as to drive the operation executing portion 124 to rotate; the surgical instrument of the surgical robot has a simple structure, can effectively reduce the volume of the surgical instrument of the surgical robot, and has flexible rotation mode, so that the surgical execution part 124 can quickly and accurately complete the instruction sent by a doctor in a limited space, and the smooth operation is ensured; the driving part drives the supporting shaft 106 to rotate, and the supporting shaft 106 and the first transmission rod 102 are in gear transmission, so that the accuracy and the stability of transmission are effectively ensured, and the phenomenon that the supporting shaft 106 idles to prevent the operation executing part 124 from rotating to a preset position is avoided; in addition, the first transmission rod 102 can be connected to a plurality of surgical executing parts 124, so as to drive the plurality of surgical executing parts 124, thereby effectively improving the versatility of the surgical instrument of the surgical robot.

In one embodiment of the present invention, preferably, as shown in fig. 3, the connection member includes: a first link 120, a first link pin, and a second link 122; one end of the first connecting element 120 is at least partially sleeved on the first transmission rod 102; the first connecting pin is inserted into the first driving rod 102 and the first connecting piece 120 along the radial direction of the first driving rod 102 to prevent the first connecting piece 120 from rotating relative to the first driving rod 102; one end of the second connecting member 122 is rotatably connected to the other end of the first connecting member 120 by a first pin, and the other end of the second connecting member 122 is connected to the operation executing unit 124 by a second pin; the first pin shaft and the second pin shaft are perpendicular to each other.

In this embodiment, one end of the first connecting piece 120 is at least partially sleeved on the first transmission rod 102 and is radially inserted into the first connecting piece 120 and the first transmission rod 102 through the first pin shaft, so that the first connecting piece 120 does not rotate or slide relative to the first transmission rod 102, thereby effectively fixing the first connecting piece 120, and the first connecting piece 120 is arranged, so that the processing amount of the first transmission rod 102 is reduced, and the straightness of the first transmission rod 102 is effectively ensured; the second connecting piece 122 is rotatably connected with the first connecting piece 120, so that the operation executing part 124 does not influence other movement modes of the operation executing part 124 in the rotating process; the first pin shaft is perpendicular to the second pin shaft, so that the operation executing part 124 has two degrees of freedom in mutually perpendicular directions, and the operation executing part 124 can rotate more flexibly, thereby facilitating the operation of the doctor on the operation executing part 124.

In one embodiment of the present invention, preferably, as shown in fig. 6 to 9, the surgical instrument of the surgical robot further includes: a second drive link 132 and a drive link 136; the second transmission rod 132 is embedded in the first transmission rod 102; one end of the driving rod 136 is rotatably connected to one end of the second driving rod 132, and the other end of the driving rod 136 is rotatably connected to the second connecting member 122 through a third pin; the third pin is parallel to the first pin, and when the second transmission rod 132 reciprocates, the second connection member 122 is driven to rotate around the first pin.

In this embodiment, by embedding the second transmission rod 132 in the first transmission rod 102, the volume of the surgical instrument of the surgical robot is reduced, and thus the space occupation by the surgical instrument of the surgical robot is effectively reduced; through setting up the drive lever 136, and rotate one end and the second transmission pole 132 of drive lever 136 and be connected, the other end and the second connecting piece 122 of drive lever 136 are rotated and are connected, and second connecting piece 122 and first connecting piece 120 are through first round pin hub rotation connection, so when second transmission pole 132 is reciprocating motion, can drive lever 136 and do reciprocating motion, and then drive second connecting piece 122 around first round pin hub rotation, and because third round pin hub is parallel with first round pin hub, guaranteed the pivoted flexibility.

In one embodiment of the present invention, preferably, as shown in fig. 9, the surgical instrument of the surgical robot further includes: a guide block 138, the guide block 138 being embedded in the first transmission rod 102; the guide block 138 is provided with a guide groove along the axial direction of the first drive lever 102, and the drive lever 136 is fitted in the guide groove.

In this embodiment, by providing the guide block 138 and embedding the driving rod 136 in the guide groove of the guide block 138, the guide block 138 guides the driving rod 136, thereby effectively ensuring the accuracy of the moving direction and the stability of the movement of the driving rod 136.

In one embodiment of the present invention, preferably, as shown in fig. 7, the surgical instrument of the surgical robot further includes: a first screw 110, a second driving portion 128, and a first slider 108; the first screw 110 is parallel to the second transmission rod 132; the second driving part 128 is connected with the first screw 110 to drive the first screw 110 to rotate; the first slider 108 is sleeved on the first screw rod 110 and reciprocates along the axial direction of the first screw rod 110 along with the rotation of the first screw rod 110; the first slider 108 is connected to the second transmission rod 132 to drive the second transmission rod 132 to reciprocate along the axial direction.

In this embodiment, the second driving part 128 drives the first screw rod 110 to rotate, the first screw rod 110 is matched with the first slider 108 to drive the first slider 108 to reciprocate along the first screw rod 110, the first slider 108 is connected with the second transmission rod 132, and the second transmission rod 132 reciprocates along with the movement of the first slider 108, so as to drive the surgical executing part 124; the screw rod is connected with the sliding block through threads, the first sliding block 108 is driven to reciprocate through the rotation of the first screw rod 110, and the first sliding block 108 only moves for a distance of one thread pitch every time the first screw rod 110 rotates for a circle, so that the movement of the first sliding block 108 is controlled more accurately, and the accuracy of the control of the operation executing part 124 is further ensured. The first screw 110 may be replaced by a lead screw, and the same effect as the first screw 110 may be achieved.

In one embodiment of the present invention, preferably, as shown in fig. 7, 10 and 11, the surgical instrument of the surgical robot further includes: a third drive link 134 and a connecting link 140; the third transmission rod 134 is embedded in the second transmission rod 132; one end of the connecting rod 140 is connected to one end of the third transmission rod 134, and the other end of the connecting rod 140 is connected to the surgical implement 124 through a transition rod to drive the surgical implement 124.

In this embodiment, by embedding the third transmission rod 134 in the second transmission rod 132, the volume of the surgical instrument of the surgical robot is further reduced; the third transmission rod 134 is connected with the operation executing part 124 through a connection rod 140, the connection rod 140 is a soft rod and has certain strength and can bear certain axial force, the connection rod 140 can be bent when being subjected to radial force and can not be bent when being subjected to only axial force, the connection rod 140 can avoid influencing the rotation of the operation executing part 124 around the first pin shaft and can not influence the driving of the third transmission rod 134 on the operation executing part 124, and the stability of the movement of the operation executing part 124 in each degree of freedom is ensured; the connecting bar 140 may be a steel wire.

In an embodiment of the present invention, preferably, as shown in fig. 11, the connecting rod 140 is sleeved with a first spring 142, which is clamped at two ends of the connecting rod 140.

In this embodiment, by providing the first spring 142 on the connecting rod 140, the connecting rod 140 can automatically return after bending along with the disappearance of the radial force, and the connecting rod 140 is ensured to be always in a straight state; when the connecting rod 140 is subjected to an axial force, the bending strength of the connecting rod can be enhanced, the driving accuracy of the operation executing part 124 can be ensured, and the operation executing part 124 can be prevented from being incapable of reaching a preset position due to the bending of the connecting rod 140.

In an embodiment of the present invention, as shown in fig. 11, preferably, the surgical executing part 124 is an opening and closing instrument, which includes a first body 144 and a second body 146, the first body 144 and the second body 146 are arranged in an intersecting manner, and the intersection of the first body 144 and the second body 146 is rotatably connected to a second pin; the transition rods comprise a first transition rod 148 and a second transition rod 150, one end of the first transition rod 148 and one end of the second transition rod 150 are rotatably connected with the connecting rod 140, the other end of the first transition rod 148 is rotatably connected with the first body 144, and the other end of the second transition rod 150 is rotatably connected with the second body 146; wherein the opening and closing device is opened or closed in accordance with the reciprocating motion of the third transmission rod 134.

In this embodiment, the first body 144 and the second body 146 of the opening and closing device are hinged by a second pin, the first transition rod 148 and the second transition rod 150 are respectively connected with the tail portions of the first body 144 and the second body 146, so that the first transition rod 148, the second transition rod 150, the first body 144 and the second body 146 form a quadrangle, and when the third transmission rod 134 reciprocates, the first transition rod 148 and the second transition rod 150 are driven to open or close, and further the opening and closing device is driven to open or close, thereby driving the opening and closing device to drive the opening and closing device.

In one embodiment of the present invention, preferably, as shown in fig. 12 and 13, the surgical implement 124 is an electric hook 152, and the electric hook 152 is rotatably connected to the second pin; the transition pole includes: a third transition bar 154, a fourth transition bar 156, and a fifth transition bar 158; one end of the third transition rod 154 and one end of the fourth transition rod 156 are rotatably connected to the connecting rod 140, the other end of the third transition rod 154 is rotatably connected to the operation executing portion 124, the other end of the fourth transition rod 156 is rotatably connected to one end of the fifth transition rod 158, and the other end of the fifth transition rod 158 is rotatably connected to the second pin, so that when the third transmission rod 134 reciprocates, the electric hook 152 is driven to rotate around the second pin.

In this embodiment, when the operation performing part 124 is the electric hook 152, the third transition rod 154, the fourth transition rod 156, the fifth transition rod 158 and the operation performing part 124 form a quadrangle, the third transition rod 154 and the fourth transition rod 156 are rotatably connected to the connecting rod 140, the fifth transition rod 158 and the operation performing part 124 are hinged to the second pin, and when the connecting rod 140 reciprocates, the operation performing part 124 is driven to rotate around the second pin, so that the degree of freedom of the operation performing part 124 is further increased, the movement of the operation performing part 124 is more flexible, and the operation of the operation performing part 124 by the surgeon is further facilitated.

In one embodiment of the present invention, preferably, as shown in fig. 7, the surgical instrument of the surgical robot further includes: a second screw 114, a third driving part 130, and a second slider 112; the second screw 114 is parallel to the third driving rod 134; the third driving part 130 is connected with the second screw 114 to drive the second screw 114 to rotate; the second slider 112 is sleeved on the second screw 114 and reciprocates along the axial direction of the second screw 114 along with the rotation of the second screw 114; the second slider 112 is connected to the third transmission rod 134 to drive the third transmission rod 134 to reciprocate in the axial direction.

In this embodiment, the third driving portion 130 drives the second screw 114 to rotate, the second slider 112 is in threaded connection with the second screw 114 and reciprocates along the axis of the screw along with the rotation of the second screw 114, and the second slider 112 is connected with the third transmission rod 134 so as to drive the third transmission rod 134 to reciprocate along the axial direction; the second slider 112 is driven to reciprocate by the rotation of the second screw 114, and the second slider 112 only moves by a distance of one thread pitch per rotation of the second screw 114, which also makes the control of the movement of the second slider 112 more accurate, thereby ensuring the accuracy of the control of the surgical manipulator 124.

In one embodiment of the present invention, preferably, as shown in fig. 4 and 5, the first driving part 126 includes: a motor 1269, a coupling shaft 1264 and a clampband 1268; the motor 1269 is provided with an output shaft; the connecting shaft 1264 is of a tubular structure, and one end of the connecting shaft 1264 is sleeved on an output shaft of the motor 1269; wherein, one end of the connecting shaft 1264 sleeved on the output shaft is provided with at least one opening along the axial direction of the connecting shaft 1264; a clamping band 1268 is fitted over the connecting shaft 1264 to clamp the connecting shaft 1264 to the output shaft.

In this embodiment, the connecting shaft 1264 is clamped on the output shaft of the motor 1269 by the clamp 1268, so that the connecting shaft 1264 is connected with the output shaft, the coaxiality of the connecting shaft 1264 and the output shaft is good due to the connecting mode, the stability of power transmission is ensured, vibration and noise are effectively avoided in the transmission process, and the stability of a product is ensured.

In one embodiment of the present invention, preferably, as shown in fig. 2, 4 and 5, the surgical instrument of the surgical robot further includes: three first connection discs 118, wherein the three first connection discs 118 are respectively connected with one ends of the support shaft 106, the first screw 110 and the second screw 114; the first driving portion 126 further includes: a second coupling plate 1262 and a second coupling pin; the second connecting disc 1262 is sleeved at the other end of the connecting shaft 1264; a second connecting pin passes through the second connecting plate 1262 and the connecting shaft 1264 in the radial direction of the connecting shaft 1264; a slide way is arranged on the inner wall of the second connecting disc 1262, and the second connecting pin is embedded in the slide way, so that the second connecting disc 1262 can slide along the axial direction relative to the connecting shaft 1264; the second connecting disc 1262 is connected with the first connecting disc 118, one of the second connecting disc 1262 and the first connecting disc 118 is provided with a groove, the other one is provided with a bulge, and the groove is matched with the bulge so that the second connecting disc 1262 drives the first connecting disc 118 to rotate.

In this embodiment, the second connecting disc 1262 is connected to the connecting shaft 1264, and the second connecting disc 1262 is limited by the second connecting pin from rotating relative to the connecting shaft 1264, so that the second connecting disc 1262 can rotate along with the rotation of the connecting shaft 1264, one of the second connecting disc 1262 and the first connecting disc 118 is provided with a groove, and the other one of the second connecting disc 1262 and the first connecting disc 118 is provided with a protrusion, and the groove is matched with the protrusion, so that the second connecting disc 1262 can drive the first connecting disc 118 to rotate, and further drive the supporting shaft 106, the first screw rod 110 or the second screw rod 114 to rotate; this kind of connected mode simple structure, it is convenient to connect to convenient to dismantle and installation have promoted the commonality of first drive division 126 effectively. The cross-sectional shape of the protrusion may be a straight line or a cross, or an irregular pattern, as long as the second land 1262 can drive the first land 118 to rotate.

In one embodiment of the present invention, preferably, as shown in fig. 4 and 5, the first driving part 126 further includes: and the second spring 1266 is sleeved on the connecting shaft 1264, and is clamped between the clamping hoop 1268 and the second connecting plate 1262, so that the second connecting plate 1262 can automatically reset.

In this embodiment, the second spring 1266 is disposed on the connecting shaft 1264 and is clamped between the clamp 1268 and the second connecting disc 1262, so that the position of the first connecting disc 118 and the second connecting disc 1262 does not need to be manually adjusted, and after the protrusion is matched with the groove, the second connecting disc 1262 can be automatically attached to the first connecting disc 118 under the thrust action of the second spring 1266, and the first connecting disc 118 is driven to rotate.

In one embodiment of the present invention, preferably, as shown in fig. 4, the second driving part 128 is identical to the first driving part 126, and the third driving part 130 is identical to the first driving part 126.

In this embodiment, by providing the second drive section 128 and the third drive section 130 as the same drive section as the first drive section 126, the versatility among the three drive sections is effectively improved.

In one embodiment of the present invention, preferably, as shown in fig. 2 and 14, the surgical instrument of the surgical robot further includes: a first bracket 160, the first bracket 160 being U-shaped, the first bracket 160 including a first side wall 1602, a second side wall 1604, and a bottom wall; the first driving rod 102 passes through the first sidewall 1602 and is connected to the first connecting member 120; one end of the first screw 110 passes through the first side wall 1602 and is connected to the first connecting plate 118, and one end of the first screw 110 is rotatably connected to the second side wall 1604; one end of the second screw 114 passes through the first side wall 1602 and then is connected to the first connecting plate 118, and one end of the second screw 114 is rotatably connected to the second side wall 1604; the support shaft 106 passes through the first side wall 1602 and is connected to the first connecting plate 118.

In this embodiment, the first bracket 160 supports the first screw 110, the second screw 114, the first transmission rod 102, the second transmission rod 132 and the third transmission rod 134, so that the partial structure forms an integral transmission part, and during the operation, if the operation execution part 124 needs to be replaced, a doctor can directly replace the transmission part with a different operation execution part 124, i.e. the operation execution part 124 can be replaced quickly and conveniently.

In one embodiment of the present invention, preferably, as shown in fig. 4 and 15, the surgical instrument of the surgical robot further includes: the second bracket 162, the first driving portion 126, the second driving portion 128 and the third driving portion 130 are all fixed on the second bracket 162, the second bracket 162 is clamped with the first bracket 160, so that the first driving portion 126 drives the support shaft 106, the second driving portion 128 drives the first screw rod 110, and the third driving portion 130 drives the second screw rod 114.

In this embodiment, the first driving part 126, the second driving part 128 and the third driving part 130 are fixed on the second bracket 162, so that the first bracket 160 is only required to be mounted on the second bracket 162 to connect the transmission part and the driving part in the process of using the surgical instrument of the surgical robot, and the universality of the first driving part 126, the second driving part 128 and the third driving part 130 can be further improved.

In an embodiment of the present invention, as shown in fig. 15, preferably, a limiting portion 1622 is disposed on the second bracket 162, the limiting portion 1622 is L-shaped, and is located at an edge of the second bracket 162 and extends along a length direction of the second bracket 162, and the limiting portion 1622 and a bottom wall of the second bracket 162 enclose a limiting groove that opens toward an inner side of the second bracket 162; the first bracket 160 is provided with a limit protrusion 1606 matched with the limit groove, and the limit protrusion 1606 is embedded in the limit groove.

In this embodiment, the positioning in the vertical direction between the first bracket 160 and the second bracket 162 is realized by the matching of the limiting groove and the limiting protrusion 1606, and when the first bracket 160 and the second bracket 162 are assembled, the limiting protrusion 1606 slides into the limiting groove along the extending direction of the limiting groove, so that the positioning of the first bracket 160 can be realized, the structure is simple, and the mounting and dismounting of the surgical instrument of the surgical robot by a doctor are facilitated; a retaining groove may also be provided on the first bracket 160 and a retaining projection 1606 may be provided on the second bracket 162.

In one embodiment of the present invention, preferably, as shown in fig. 14 and 15, an upper surface of the bottom wall of the second bracket 162 is matched with a lower surface of the bottom wall of the first bracket 160, and one of the upper surface of the bottom wall of the second bracket 162 and the lower surface of the bottom wall of the first bracket 160 is provided with a positioning protrusion 1624 protruding from the surface, and the other is provided with a positioning groove matched with the positioning protrusion 1624.

In this embodiment, by providing the positioning protrusion 1624 and the positioning groove, the positioning protrusion 1624 cooperates with the positioning groove to horizontally position the first bracket 160 and the second bracket 162, so as to ensure the accuracy of the position of the first bracket 160 in the horizontal direction.

In one embodiment of the present invention, preferably, as shown in fig. 16 and 17, a positioning pin 166 is disposed on the first bracket 160, and the positioning pin 166 is clamped to the first bracket 160 by a third spring 168; the second bracket 162 is provided with a positioning hole 1626, and the positioning pin 166 is embedded in the positioning hole 1626; the positioning pin 166 is provided with a handle 164, and the handle 164 is used for inserting and pulling the positioning pin 166.

In this embodiment, the positioning pin 166 is disposed on the first bracket 160 and is embedded in the positioning hole 1626 disposed on the second bracket 162, so as to prevent the first bracket 160 from being removed from the limiting groove and the positioning groove, and ensure the accuracy of positioning the first bracket 160 by the second bracket 162; the positioning pin 166 is clamped on the first bracket 160 through a spring, so that the positioning pin 166 is always kept in the positioning hole 1626 of the second bracket 162 when not being affected by external force, and the positioning pin 166 is prevented from being disengaged from the positioning hole 1626; the positioning pin 166 is easily inserted and removed by providing the handle 164.

In one embodiment of the present invention, surgical implement 124 preferably includes scissors, graspers, electrical hooks 152, separation forceps, ultrasonic blade, and needle holders; wherein the scissors, the grasping forceps, the separating forceps and the needle holder are open-close instruments.

In an embodiment of the second aspect of the present invention, the present invention provides a surgical robot, wherein the surgical robot comprises the surgical instrument of the surgical robot according to any one of the above embodiments, and therefore, the surgical robot comprises all the beneficial effects of the surgical instrument of the surgical robot according to any one of the above embodiments.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (18)

1. A surgical instrument of a surgical robot, comprising:

a first driving section;

the supporting shaft is connected with the first driving part and is provided with a first gear;

one end of the first transmission rod is provided with a second gear, and the other end of the first transmission rod is connected with the operation executing part through a connecting piece;

the first gear is meshed with the second gear, the support shaft is positioned below the side of the first transmission rod, the first driving part drives the support shaft to rotate so as to drive the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the first transmission rod to rotate so as to drive the operation executing part to rotate;

the connector includes:

one end of the first connecting piece is at least partially sleeved on the first transmission rod;

the first connecting pin is inserted into the first transmission rod and the first connecting piece along the radial direction of the first transmission rod so as to prevent the first connecting piece from rotating relative to the first transmission rod;

one end of the second connecting piece is rotatably connected with the other end of the first connecting piece through a first pin shaft, and the other end of the second connecting piece is connected with the operation executing part through a second pin shaft;

the first pin shaft and the second pin shaft are perpendicular to each other;

the surgical instrument of the surgical robot further includes:

the second transmission rod is embedded in the first transmission rod;

one end of the driving rod is rotatably connected with one end of the second transmission rod, and the other end of the driving rod is rotatably connected with the second connecting piece through a third pin shaft;

the third pin shaft is parallel to the first pin shaft, and when the second transmission rod reciprocates, the second connecting piece is driven to rotate around the first pin shaft;

the first screw rod is parallel to the second transmission rod;

the second driving part is connected with the first screw rod so as to drive the first screw rod to rotate;

the first sliding block is sleeved on the first screw rod and reciprocates along the axial direction of the first screw rod along with the rotation of the first screw rod;

the first sliding block is connected with the second transmission rod to drive the second transmission rod to reciprocate along the axis direction.

2. A surgical instrument of a surgical robot as recited in claim 1, further comprising:

the guide block is embedded in the first transmission rod;

the guide block is provided with a guide groove along the axis direction of the first transmission rod, and the driving rod is embedded in the guide groove.

3. A surgical instrument of a surgical robot as recited in claim 1, further comprising:

the third transmission rod is embedded in the second transmission rod;

and one end of the connecting rod is connected with one end of the third transmission rod, and the other end of the connecting rod is connected with the operation executing part through a transition rod so as to drive the operation executing part.

4. A surgical instrument of a surgical robot as claimed in claim 3, wherein the connecting rod is sleeved with a first spring, and the first spring is clamped at two ends of the connecting rod.

5. A surgical instrument of a surgical robot according to claim 3,

the operation executing part is an opening and closing instrument which comprises a first body and a second body, the first body and the second body are arranged in a crossed mode, and the crossed position of the first body and the second body is rotatably connected with the second pin shaft;

the transition rod comprises a first transition rod and a second transition rod, one end of the first transition rod and one end of the second transition rod are rotatably connected with the connecting rod, the other end of the first transition rod is rotatably connected with the first body, and the other end of the second transition rod is rotatably connected with the second body;

wherein the opening and closing device is opened or closed along with the reciprocating motion of the third transmission rod.

6. A surgical instrument of a surgical robot according to claim 3,

the operation executing part is an electric hook which is rotationally connected with the second pin shaft;

the transition bar includes: a third transition bar, a fourth transition bar, and a fifth transition bar;

one end of the third transition rod and one end of the fourth transition rod are rotatably connected with the connecting rod, the other end of the third transition rod is rotatably connected with the surgical instrument, the other end of the fourth transition rod is rotatably connected with one end of the fifth transition rod, and the other end of the fifth transition rod is rotatably connected with the second pin shaft;

when the third transmission rod reciprocates, the electric hook is driven to rotate around the second pin shaft.

7. A surgical instrument of a surgical robot as recited in claim 3, further comprising:

the second screw rod is parallel to the third transmission rod;

the third driving part is connected with the second screw rod so as to drive the second screw rod to rotate;

the second sliding block is sleeved on the second screw rod and reciprocates along the axis direction of the second screw rod along with the rotation of the second screw rod;

the second sliding block is connected with the third transmission rod to drive the third transmission rod to reciprocate along the axis direction.

8. A surgical instrument of a surgical robot as recited in claim 7, wherein the first drive portion includes:

a motor provided with an output shaft;

the connecting shaft is of a tubular structure, and one end of the connecting shaft is sleeved on an output shaft of the motor;

the connecting shaft is sleeved on one end of the output shaft, and at least one opening is formed in the axis direction of the connecting shaft;

and the clamping hoop is sleeved on the connecting shaft so as to clamp the connecting shaft on the output shaft.

9. A surgical instrument of a surgical robot as recited in claim 8, further comprising:

the number of the first connecting discs is three, and the three first connecting discs are respectively connected with one end of the support shaft, one end of the first screw rod and one end of the second screw rod;

the first driving part further includes:

the second connecting disc is sleeved at the other end of the connecting shaft;

the second connecting pin penetrates through the second connecting disc and the connecting shaft along the radial direction of the connecting shaft;

the inner wall of the second connecting disc is provided with a slideway, and the second connecting pin is embedded in the slideway so that the second connecting disc can slide along the axial direction relative to the connecting shaft;

the second connecting disc is connected with the first connecting disc, one of the second connecting disc and the first connecting disc is provided with a connecting groove, the other one of the second connecting disc and the first connecting disc is provided with a connecting bulge, and the connecting groove is matched with the connecting bulge so that the second connecting disc drives the first connecting disc to rotate.

10. A surgical instrument of a surgical robot as recited in claim 9, wherein the first drive section further includes:

and the second spring is sleeved on the connecting shaft and clamped between the clamping hoop and the second connecting disc so as to enable the second connecting disc to be automatically reset.

11. A surgical instrument of a surgical robot as recited in claim 10, wherein the second drive portion is identical to the first drive portion, and the third drive portion is identical to the first drive portion.

12. A surgical instrument of a surgical robot as recited in claim 11, further comprising:

the first bracket is U-shaped and comprises a first side wall, a second side wall and a bottom wall;

the first transmission rod penetrates through the first side wall and then is connected with the first connecting piece;

one end of the first screw rod penetrates through the first side wall and then is connected with the first connecting disc, and one end of the first screw rod is rotatably connected with the second side wall;

one end of the second screw rod penetrates through the first side wall and then is connected with the first connecting disc, and one end of the second screw rod is rotatably connected with the second side wall;

the supporting shaft penetrates through the first side wall and then is connected with the first connecting disc.

13. A surgical instrument of a surgical robot as recited in claim 12, further comprising:

the second support, first drive division the second drive division with the third drive division all is fixed in on the second support, the second support with first support joint, so that first drive division drive the back shaft, the drive of second drive division first screw rod, the drive of third drive division the second screw rod.

14. A surgical instrument of a surgical robot according to claim 13,

the second bracket is provided with a limiting part, the limiting part is L-shaped, the edge of the second bracket extends along the length direction of the second bracket, and the limiting part and the bottom wall of the second bracket enclose a limiting groove which is opened towards the inner side of the second bracket;

the first support is provided with a limiting protrusion matched with the limiting groove, and the limiting protrusion is embedded in the limiting groove.

15. A surgical instrument of a surgical robot according to claim 13,

the upper surface of the bottom wall of the second support is matched with the lower surface of the bottom wall of the first support, one of the upper surface of the bottom wall of the second support and the lower surface of the bottom wall of the first support is provided with a positioning bulge protruding out of the surface, and the other one of the upper surface of the bottom wall of the second support and the lower surface of the bottom wall of the first support is provided with a positioning groove matched with the positioning bulge.

16. A surgical instrument of a surgical robot according to claim 13,

the first support is provided with a positioning pin, and the positioning pin is clamped on the first support through a third spring;

a positioning hole is formed in the second support, and the positioning pin is embedded in the positioning hole;

and a handle is arranged on the positioning pin and used for plugging and unplugging the positioning pin.

17. A surgical instrument of a surgical robot according to any of claims 1 to 16,

the operation executing part comprises scissors, a pair of graspers, an electric hook, a pair of separating forceps, an ultrasonic scalpel and a needle holder;

wherein the scissors, the grasper, the separation forceps and the needle holder are open-close instruments.

18. A surgical robot, characterized in that it comprises a surgical instrument of a surgical robot according to any of claims 1 to 17.

Images