CN211325283U - Joint control mechanism of endoscopic surgical instrument - Google Patents
Joint control mechanism of endoscopic surgical instrument Download PDFInfo
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- CN211325283U CN211325283U CN201922239936.0U CN201922239936U CN211325283U CN 211325283 U CN211325283 U CN 211325283U CN 201922239936 U CN201922239936 U CN 201922239936U CN 211325283 U CN211325283 U CN 211325283U
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Abstract
A joint control mechanism of an endoscopic surgical instrument realizes the technical characteristics of a joint control shell, a joint driving wheel, a joint knob and a joint driving rod in the joint control mechanism. The screw transmission mechanism has a self-locking function, and can resist the lever force amplification effect of the actuating assembly on the joint assembly, so that the technical effect of positioning the actuating assembly on a proper position is achieved. The cooperation of the conical gear transmission mechanism and the spiral transmission mechanism has the function of stepless adjustment, and the technical effect that the stepless adjustment execution assembly performs joint rotation to both sides to a proper angle is achieved.
Description
Technical Field
The present invention relates to laparoscopic surgical instruments used in laparoscopic surgery, and more particularly to laparoscopic surgical instruments used in laparoscopic surgery, and even more particularly to laparoscopic surgical instruments used in thoracoscopic surgery.
Background
In laparoscopic and thoracoscopic surgery, various manual or electric endoscopic surgical instruments are generally used for clamping, cutting, injecting, cutting, suturing, and anastomosing operations in the abdominal cavity, the thoracic cavity, and the urogenital system, which can reduce surgical trauma, shorten the operation time, and improve the operation quality.
The laparoscopic cutting staplers, laparoscopic surgical suture devices, laparoscopic surgical forceps, laparoscopic surgical cutting forceps, laparoscopic surgical clip appliers, laparoscopic surgical scissors, laparoscopic surgical syringes, laparoscopic cutting knives, laparoscopic surgical fan forceps, laparoscopic surgical electrosurgical knives, laparoscopic surgical ultrasonic knives, and various other laparoscopic surgical instruments described in the united states patents of US20100200639a1, US20130334278a1, US20140014707a1, US20170150961a1, US20180049763a1, US20180078248a1, US20180116675a1, US20180126504a1, and US20180333185a1 are described. The endoscopic surgical instrument includes an implement assembly, a joint assembly, an operating assembly, and an extension assembly. The operating assembly controls the motion of the articulation assembly, the extension assembly, and the actuation assembly. The actuator may be either an unpowered or powered actuator.
In the endoscopic surgery, the extension component of the endoscopic surgical instrument entering the puncture outfit is restricted by the caliber of the puncture outfit, so that the working range of the execution component is very small. If the executing assembly can not be aligned with the tissue organ to be operated, the executing assembly can not execute the operation of the surgical operation, and at the moment, an endoscopic surgical instrument is required to enter the inner cavity of the human body through another puncture outfit to clamp the tissue organ to be operated within the working range of the executing assembly. Some tissue organs to be operated are pulled to cause tissue damage, and even if the tissue organs to be operated are pulled, the tissue organs to be operated are difficult to clamp accurately within the working range of the executing assembly. Therefore, the operating assembly adopts the joint operating mechanism to control the executing assembly to perform joint rotation.
In the joint operating mechanism of the endoscopic surgical instrument as described in US20100200639a1, there are an articulation knob, a 5-step cam driven by the articulation knob, a slider driven by the step cam, and an articulation linkage rod driven by the slider. The joint linkage rod pulls the joint assembly to control the executing assembly to do joint rotation around the two sides of the pin shaft direction relative to the extending assembly. The thin plate of the actuating driving piece bends and deforms towards two sides along with the rotation of the joint component towards two sides. An unsatisfactory aspect of endoscopic surgical instruments of this type is that the actuator drive generates a relatively large resistance to bending deformation when the angle at which the actuator drive is bent is relatively large, constrained by the interior space of the joint assembly. Under the influence of bending deformation resistance of the actuating driving piece, acting force between the sliding block driven by the trapezoidal cam and the joint linkage rod driven by the sliding block is large, so that only 5 gears are arranged on the trapezoidal cam, only 5 joint rotating positions can be positioned, and the positioning accuracy is poor. An articulation knob, a cable driven by the articulation knob in the articulation control mechanism of an endoscopic surgical instrument as described in U.S. patent No. US20130334278a 1. The cable pulls the joint assembly to control the executing assembly to do joint rotation around the two sides of the pin shaft relative to the extending assembly. The thin plate of the actuating driving piece bends and deforms towards two sides along with the rotation of the joint component towards two sides. The first dissatisfaction with these two styles of laparoscopic surgical instruments is that the angle at which the actuation assembly articulates to both sides is difficult to reach 45 ° due to the large resistance to bending deformation of the actuation drive member, limited by the operating force of the manual articulation control mechanism, and the actuation assembly cannot be articulated to both sides by a single hand. A second dissatisfaction with these two styles of laparoscopic surgical instruments is the lack of self-locking action of the articulation control mechanisms to articulate the effector assembly to both sides. When the front end part of the executing component is subjected to a large acting force, the lever force amplifying effect of the executing component on the joint part is added, the angle of the executing component for performing joint rotation towards two sides is changed, and the positioning precision is poor. Accordingly, there is a need for an improved joint manipulation mechanism for laparoscopic surgical instruments.
It is apparent from the foregoing that different styles of laparoscopic surgical instruments have now been designed and that the development of new laparoscopic surgical instruments continues to improve upon the laparoscopic surgical instruments used in large numbers throughout the world each year, making them more convenient, more accurate and less labor intensive to use.
Disclosure of Invention
An object of the utility model is to provide a joint operating mechanism of laparoscopic surgery apparatus realizes the technical characterstic that shell, joint drive wheel, joint knob and joint actuating lever were controlled to the relevant festival among the joint operating mechanism. The technical scheme is that a joint knob drives a joint driving wheel to rotate through a gear transmission mechanism, the joint driving wheel drives a joint driving rod to move back and forth through a spiral transmission mechanism, the joint driving rod drives a joint assembly to rotate in a joint mode, and an execution assembly swings along with the joint rotation of the joint assembly. The screw transmission mechanism has a self-locking function, and can resist the amplification effect of the lever force of the actuating assembly on the joint assembly, so that the technical effect of positioning the actuating assembly on a proper position is achieved. The cooperation of the conical gear transmission mechanism and the spiral transmission mechanism has the function of stepless adjustment, and the technical effect that the stepless adjustment execution assembly performs joint rotation to both sides to a proper angle is achieved; and the joint component also has the function of amplifying force, and achieves the technical effect that the joint component can be driven to rotate by poking the joint knob with the fingers of a single hand.
The utility model aims at realizing through the following technical scheme:
the utility model discloses an among the laparoscopic surgery apparatus have execute subassembly, joint subassembly, extension subassembly and operating element. The operating assembly controls the motion of the articulation assembly, the extension assembly, and the actuation assembly.
The operating assembly comprises an instrument body and a joint operating mechanism. The joint control mechanism comprises a relative joint control shell, a joint driving wheel, a joint driving rod and a joint knob. An articulation housing is located between the instrument body and the extension assembly. The joint knob is provided with a conical gear. The joint knob is mounted on the joint manipulation housing and can rotate on the joint manipulation housing. The joint driving wheel is provided with a conical gear. The joint driving wheel is installed in the joint control shell and can rotate in the joint control shell. The conical gear on the joint knob and the conical gear on the joint driving wheel are meshed with each other to form a conical gear transmission mechanism. The joint knob drives the joint driving wheel to rotate through the bevel gear transmission mechanism. The joint driving rod can move back and forth in the joint control shell. A spiral transmission mechanism is arranged between the joint driving wheel and the joint driving rod. The screw transmission mechanism has a self-locking function, and can resist the amplification effect of the lever force of the actuating assembly on the joint assembly, so that the technical effect of positioning the actuating assembly on a proper position is achieved. The cooperation of the conical gear transmission mechanism and the spiral transmission mechanism has the function of stepless adjustment, and the technical effect that the stepless adjustment execution assembly performs joint rotation to both sides to a proper angle is achieved; and the joint component also has the function of amplifying force, and achieves the technical effect that the joint component can be driven to rotate by poking the joint knob with the fingers of a single hand.
When the joint knob rotates on the joint control shell, the joint knob drives the joint driving wheel to rotate through the conical gear transmission mechanism, the joint driving wheel drives the joint driving rod to move back and forth through the spiral transmission mechanism, the joint driving rod drives the joint assembly to rotate in a joint mode, and the executing assembly swings along with the joint rotation of the joint assembly. For the structure, installation, use and action process of the joint driving rod of various endoscopic surgical instruments for driving the joint assembly to perform joint rotation, reference is made to various patents and other related documents cited in the specification.
The knob rotating axis of the joint knob is parallel to the joint rotating axis of the joint assembly, so that the corresponding relation between the rotating direction of the joint knob and the swinging direction of the executing assembly is convenient to determine. When the joint manipulation shell rotates around the front part of the instrument body, the joint manipulation shell can drive the joint component, the extension component and the execution component to rotate together.
The joint driving wheel may have a helical groove therein. The joint driving rod may have spiral teeth in its back. The spiral groove of the joint driving wheel and the spiral teeth of the joint driving rod form a complete spiral transmission mechanism. The joint driving wheel drives the joint driving rod to move back and forth through the complete spiral transmission mechanism.
There may also be lugs in the joint drive wheel. The rear part of the joint driving rod can also be provided with a spiral groove. The lug of the joint driving wheel and the spiral groove of the joint driving rod form an incomplete spiral transmission mechanism. The joint driving wheel drives the joint driving rod to move back and forth through the incomplete spiral transmission mechanism.
Spiral grooves may also be provided in the joint drive wheels. The joint driving rod may have a lug in its back. The spiral groove of the joint driving wheel and the lug of the joint driving rod form an incomplete spiral transmission mechanism. The joint driving wheel drives the joint driving rod to move back and forth through the incomplete spiral transmission mechanism.
There may be a first articulation knob and a second articulation knob in the articulation knob. The first joint knob and the second joint knob are respectively arranged on two opposite sides of the joint control shell and can rotate on the joint control shell. The first joint knob is provided with a first conical gear. The second joint knob is provided with a second conical gear. The joint driving wheel is provided with a conical gear. And a first conical gear on the first joint knob is meshed with a conical gear on the joint driving wheel to form a first conical gear transmission mechanism. And a second conical gear on the second joint knob is meshed with a conical gear on the joint driving wheel to form a second conical gear transmission mechanism. When the first joint knob and the second joint knob rotate in the same direction, the rotation direction of the joint driving wheel driven by the first joint knob through the first conical gear transmission mechanism is opposite to the rotation direction of the joint driving wheel driven by the second joint knob through the second conical gear transmission mechanism. The first joint knob and the second joint knob can be distinguished by adopting different colors, different shapes, different sizes and other characteristics, so that the joint knobs with different characteristics are shifted to the same direction, and the execution components can be respectively driven to swing to different directions, so that the execution components can be controlled to swing to different directions by using a single hand to move to the same direction.
Drawings
FIG. 1 is a perspective view illustrating the laparoscopic surgical instrument of the present invention;
FIG. 2 is a perspective view showing the laparoscopic surgical instrument of FIG. 1 with portions removed;
FIG. 3 is a perspective view of the joint manipulation mechanism, joint assembly and actuator assembly of FIG. 1 with portions removed;
FIG. 4 is a perspective view showing the actuator assembly of FIG. 3 swung to the left in response to articulation of the articulation assembly;
FIG. 5 is a perspective view showing the actuator assembly of FIG. 3 swinging to the right with joint rotation of the joint assembly;
fig. 6 is a perspective view showing a joint control mechanism according to a first embodiment of the present invention shown in fig. 1;
FIG. 7 is a perspective view showing the joint knob, joint driving wheel and joint driving lever of FIG. 6;
FIG. 8 is a perspective view showing the articulation knob removed from FIG. 7;
FIG. 9 is a perspective view showing the joint drive lever of FIG. 8;
FIG. 10 is a perspective view showing the joint drive wheel of FIG. 8;
FIG. 11 is a perspective view showing the rear surface of the joint drive wheel of FIG. 10;
FIG. 12 is a perspective view showing the joint manipulation housing of FIG. 6;
fig. 13 is a perspective view illustrating the first joint knob of fig. 6;
fig. 14 is a perspective view showing a joint control mechanism according to a second embodiment of the present invention shown in fig. 1;
FIG. 15 is a perspective view showing the joint drive wheel and joint drive rod of FIG. 14;
FIG. 16 is a perspective view showing the joint drive wheel of FIG. 15;
fig. 17 is a perspective view showing the back of the joint driving wheel of fig. 16;
fig. 18 is a perspective view showing a joint control mechanism according to a third embodiment of the present invention shown in fig. 1;
FIG. 19 is a perspective view showing the joint drive wheel and joint drive rod of FIG. 18;
fig. 20 is a perspective view showing the joint drive lever of fig. 19.
Detailed Description
The following description of the preferred embodiment of the joint steering mechanism of an endoscopic surgical instrument of the present invention is made by way of example only with reference to the accompanying drawings. The scope of the invention is indicated in the claims. It is to be understood that some or all of the figures are diagrammatic illustrations for purposes of illustrating a preferred embodiment of the invention and do not depict the actual dimensions of the portions shown. The actual manner in which the above-recited and other objects and advantages of the invention are obtained will be more clearly understood by reference to the detailed description of the preferred embodiments. In the drawings and the following description, the term "posterior" refers to a location proximal to the operator of the laparoscopic surgical instrument, while the term "anterior" refers to a location distal to the operator of the laparoscopic surgical instrument; the term "left" refers to the left position of the operator of the laparoscopic surgical instrument, while the term "right" refers to the right position of the operator of the laparoscopic surgical instrument. The terms "rear", "front", "left" and "right" correspond to the positions in FIG. 1, and as the positions of the laparoscopic surgical instrument and its various components are changed, the positions of the various terms are also changed. Other positional and orientational terms may be understood in light of the drawings and the following description.
In order to highlight the figures and the description of the joint control mechanism and the related components of the endoscopic surgical instrument of the present invention, other components are not described in detail in the drawings. Reference is made to the various patents and other documents cited in this specification for structure, mounting, use and operation of other components of various endoscopic surgical instruments.
As shown in FIG. 1, the laparoscopic surgical instrument 1 includes an implement assembly 2, a joint assembly 3, an extension assembly 4, and a manipulation assembly 5. The operating assembly 5 controls the motion of the articulation assembly 3, the extension assembly 4 and the actuation assembly 2.
Figures 2 to 13 show the articulation control mechanism 7 of a first embodiment of the laparoscopic surgical instrument of the present invention.
The operating assembly 5 comprises an instrument body 6, a joint actuation mechanism 7 and an actuating drive 18 (see fig. 1 to 5). The joint manipulation mechanism 7 includes a joint manipulation housing 8, a joint driving wheel 9, a joint driving lever 10, a first joint knob 11, and a second joint knob 12 (see fig. 6 and 7). An articulation housing 8 is located between the instrument body 6 and the extension assembly 4. When the joint manipulation housing 8 is rotated about the front portion 19 (see FIG. 2) of the instrument body 6, the joint manipulation housing 8 can cause the joint assembly 3, the extension assembly 4, and the implement assembly 2 to rotate together. The first joint knob 11 and the second joint knob 12 are respectively installed at opposite sides of the joint manipulation housing 8 and can be rotated on the joint manipulation housing 8 (fig. 6, 12, and 13). The first joint knob 11 is provided with a first conical gear 13 (see fig. 13). The second articulation knob 12 has a second bevel gear 14 (see fig. 3-7). The joint driving wheel 9 is provided with a conical gear 15 (see fig. 10). The first conical gear 13 on the first joint knob 11 is meshed with the conical gear 15 on the joint driving wheel 9 to form a first conical gear transmission mechanism. And a second conical gear 14 on the second joint knob 12 is meshed with a conical gear 15 on the joint driving wheel 9 to form a second conical gear transmission mechanism (see fig. 7). The joint drive rod 10 is mounted within the joint manipulation housing 8 and the extension assembly 4 and is capable of moving back and forth within the joint manipulation housing 8 and the extension assembly 4. The joint driving wheel 9 has a spiral groove 16 (see fig. 11) therein. The joint driving rod 10 has a screw tooth 17 at the rear (see fig. 9). The spiral groove 16 of the joint driving wheel 9 and the spiral tooth 17 of the joint driving rod 10 form a complete spiral transmission mechanism (see fig. 8). The joint driving wheel 9 drives the joint driving rod 10 to move back and forth through a complete spiral transmission mechanism.
As shown in fig. 3 to 7, when the first joint knob 11 or the second joint knob 12 rotates on the joint operating housing 8, the first joint knob 11 or the second joint knob 12 drives the joint driving wheel 9 to rotate through the first conical gear transmission mechanism or the second conical gear transmission mechanism, the joint driving wheel 9 drives the joint driving rod 10 to move back and forth through the screw transmission mechanism, the joint driving rod 10 drives the joint component 3 to make joint rotation, and the executing component 2 swings left and right along with the joint rotation of the joint component 3. When the first joint knob 11 and the second joint knob 12 rotate in the same direction, the rotation direction of the joint driving wheel 9 driven by the first joint knob 11 through the first bevel gear transmission mechanism is opposite to the rotation direction of the joint driving wheel 9 driven by the second joint knob 12 through the second bevel gear transmission mechanism. The knob rotation axes of the first joint knob 11 and the second joint knob 12 and the joint rotation axis of the joint assembly 3 are parallel to each other, so that the corresponding relationship between the rotation direction of the first joint knob 11 or the second joint knob 12 and the swing direction of the actuating assembly 2 can be conveniently determined. The first joint knob 11 and the second joint knob 12 can be distinguished by different colors, different shapes, different sizes and other characteristics; thus, when the first joint knob 11 or the second joint knob 12 with different characteristics is shifted to the same direction, it can be confirmed that the actuating component 2 is driven to swing to different directions respectively, so that the actuating component 2 can be controlled to swing to different directions by a single hand moving to the same direction. The screw transmission mechanism has a self-locking function and can resist the lever force amplification effect of the actuating component 2 on the joint component 3, so that the technical effect of positioning the actuating component 2 on a proper position is achieved. The cooperation of the conical gear transmission mechanism and the spiral transmission mechanism has the function of stepless adjustment, and the technical effect that the stepless adjustment executing component 2 performs joint rotation to both sides to a proper angle is achieved; and the joint component also has the function of amplifying force, and achieves the technical effect that the joint component 3 can be driven to rotate in the opposite direction by using fingers of a single hand to stir the first joint knob 11 or the second joint knob 12.
As shown in fig. 14 to 17, the joint operating mechanism 20 of the second embodiment of the endoscopic surgical instrument of the present invention includes a joint operating housing 8, a joint driving wheel 21, a joint driving lever 10, a first joint knob 11, and a second joint knob 12. The joint drive wheel 21 has a projection 22 therein. The lug 22 of the joint driving wheel 21 and the spiral tooth 17 of the joint driving rod 10 form an incomplete spiral transmission mechanism. The joint driving wheel 21 drives the joint driving rod 10 to move back and forth through the incomplete screw transmission mechanism. Other technical features, technical solutions and technical effects of the joint manipulating mechanism 20 are the same as those of the joint manipulating mechanism 7 of the first embodiment.
As shown in fig. 18 to 20, the joint operating mechanism 25 of the third embodiment of the endoscopic surgical instrument of the present invention includes a joint operating housing 8, a joint driving wheel 9, a joint driving lever 26, a first joint knob 11, and a second joint knob 12. The joint driving rod 26 has a projection 27 at the rear. The spiral groove 16 of the joint driving wheel 9 and the lug 27 of the joint driving rod 26 form an incomplete spiral transmission mechanism. The joint driving wheel 9 drives the joint driving rod 26 to move back and forth through the incomplete screw transmission mechanism. Other technical features, technical solutions and technical effects of the joint manipulating mechanism 25 are the same as those of the joint manipulating mechanism 7 of the first embodiment.
According to the above detailed description, compared with the joint control mechanism of various existing endoscopic surgical instruments, the joint control mechanism of the endoscopic surgical instrument of the present invention has the following technical effects:
the utility model discloses an endoscopic surgery apparatus realizes the technical characteristics of shell, joint drive wheel, joint knob and joint actuating lever are controlled to the relevant festival among the joint operating mechanism. The technical scheme is that a joint knob drives a joint driving wheel to rotate through a gear transmission mechanism, the joint driving wheel drives a joint driving rod to move back and forth through a spiral transmission mechanism, the joint driving rod drives a joint assembly to rotate in a joint mode, and an execution assembly swings along with the joint rotation of the joint assembly. The screw transmission mechanism has a self-locking function, and can resist the amplification effect of the lever force of the actuating assembly on the joint assembly, so that the technical effect of positioning the actuating assembly on a proper position is achieved. The cooperation of the conical gear transmission mechanism and the spiral transmission mechanism has the function of stepless adjustment, and the technical effect that the stepless adjustment execution assembly performs joint rotation to both sides to a proper angle is achieved; and the joint component also has the function of amplifying force, and achieves the technical effect that the joint component can be driven to rotate by poking the joint knob with the fingers of a single hand.
The utility model discloses an execute component of laparoscopic surgery apparatus both can adopt nail anvil and the nail storehouse in FIG. 1, also can adopt sword, pincers, cutting pliers, execute clamp, fan-shaped pincers, suture pole, cut, press from both sides, syringe or other various execute components that can be used to laparoscopic surgery to satisfy the requirement of the multiple use of laparoscopic surgery operation.
It will thus be seen that the objects set forth above, including those made apparent from the preceding description, are efficiently attained. What has been described is merely a typical preferred embodiment of the invention, and certain changes may be made in the above construction without departing from the spirit and scope of the invention. The invention is not limited or restricted to the specific details set forth herein but is intended to cover any improvements or modifications that are obvious to those of ordinary skill in the art.
Claims (7)
1. A joint manipulation mechanism for an endoscopic surgical instrument having an actuation assembly, a joint assembly, an extension assembly, and an operating assembly; the operating component controls the actions of the joint component, the extension component and the executing component;
the method is characterized in that: the operation assembly is provided with an instrument body and a joint operation mechanism, the joint operation mechanism is provided with a relative joint operation shell, a joint driving wheel, a joint driving rod and a joint knob, the joint control shell is positioned between the instrument body and the extension component, the joint knob is provided with a bevel gear, the joint knob is arranged on the joint control shell and can rotate on the joint control shell, the joint driving wheel is provided with a conical gear, the joint driving wheel is arranged in the joint control shell and can rotate in the joint control shell, the conical gear on the joint knob and the conical gear on the joint driving wheel are meshed with each other to form a conical gear transmission mechanism, the joint knob drives the joint driving wheel to rotate through the conical gear transmission mechanism, the joint driving rod can move back and forth in the joint control shell, and a spiral transmission mechanism is arranged between the joint driving wheel and the joint driving rod;
when the joint knob rotates on the joint control shell, the joint knob drives the joint driving wheel to rotate through the conical gear transmission mechanism, the joint driving wheel drives the joint driving rod to move back and forth through the spiral transmission mechanism, the joint driving rod drives the joint assembly to rotate in a joint mode, and the executing assembly swings along with the joint rotation of the joint assembly.
2. The articulating mechanism of claim 1, wherein the knob axis of rotation of the articulation knob and the articulation axis of rotation of the articulation assembly are parallel to each other.
3. The articulating mechanism of an endoscopic surgical instrument of claim 1, wherein said articulating housing is capable of rotating said articulation assembly, said extension assembly and said actuation assembly together when said articulating housing is rotated about the anterior portion of said instrument body.
4. The joint control mechanism of an endoscopic surgical instrument as claimed in claim 1, wherein the joint driving wheel has a spiral groove therein, the joint driving rod has a spiral tooth at the rear portion thereof, the spiral groove of the joint driving wheel and the spiral tooth of the joint driving rod constitute a complete spiral transmission mechanism, and the joint driving wheel drives the joint driving rod to move back and forth through the complete spiral transmission mechanism.
5. The joint operating mechanism of an endoscopic surgical instrument as claimed in claim 1, wherein the joint driving wheel has a protrusion, the joint driving rod has a spiral groove at the rear portion thereof, the protrusion of the joint driving wheel and the spiral groove of the joint driving rod form an incomplete spiral transmission mechanism, and the joint driving wheel drives the joint driving rod to move back and forth through the incomplete spiral transmission mechanism.
6. The joint operating mechanism of an endoscopic surgical instrument as claimed in claim 1, wherein the joint driving wheel has a spiral groove therein, the joint driving rod has a protrusion at the rear thereof, the spiral groove of the joint driving wheel and the protrusion of the joint driving rod form an incomplete screw transmission mechanism, and the joint driving wheel drives the joint driving rod to move back and forth through the incomplete screw transmission mechanism.
7. The joint control mechanism of the endoscopic surgical instrument according to claim 1, wherein the joint knob comprises a first joint knob and a second joint knob, the first joint knob and the second joint knob are respectively installed on two opposite sides of the joint control shell and can rotate on the joint control shell, the first joint knob comprises a first conical gear, the second joint knob comprises a second conical gear, the joint driving wheel comprises a conical gear, the first conical gear on the first joint knob is meshed with the conical gear on the joint driving wheel to form a first conical gear transmission mechanism, and the second conical gear on the second joint knob is meshed with the conical gear on the joint driving wheel to form a second conical gear transmission mechanism; when the first joint knob and the second joint knob rotate in the same direction, the rotation direction of the joint driving wheel driven by the first joint knob through the first conical gear transmission mechanism is opposite to the rotation direction of the joint driving wheel driven by the second joint knob through the second conical gear transmission mechanism.
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| CN201922239936.0U CN211325283U (en) | 2019-12-14 | 2019-12-14 | Joint control mechanism of endoscopic surgical instrument |
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| CN201922239936.0U CN211325283U (en) | 2019-12-14 | 2019-12-14 | Joint control mechanism of endoscopic surgical instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116250881A (en) * | 2023-02-08 | 2023-06-13 | 苏州勤灏精密机械有限公司 | Endoscope anastomat with steering self-locking mechanism and working method thereof |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116250881A (en) * | 2023-02-08 | 2023-06-13 | 苏州勤灏精密机械有限公司 | Endoscope anastomat with steering self-locking mechanism and working method thereof |
| CN116250881B (en) * | 2023-02-08 | 2024-02-20 | 苏州勤灏精密机械有限公司 | Endoscope anastomat with steering self-locking mechanism and working method thereof |
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