Multifunctional operating forceps capable of switching operating parts

Abstract

The invention relates to multifunctional operating forceps capable of switching operating parts, and belongs to the technical field of medical instruments. In order to reduce the probability that instruments get in and out and damage visceral organs in the abdominal cavity such as a port or an intestinal canal in the operation process and improve the operation safety, the multifunctional operating forceps capable of switching the operating parts comprise a sleeve, a fixed handle, an operating handle and a switching assembly, and the multiple operating parts with different operating heads are arranged in the sleeve; the operation handle is used for driving the switching assembly to rotate so as to abut against the different operation pieces and driving the operation heads, abutting against the switching assembly, of the operation pieces to stretch out of the sleeve to work or retract into the sleeve to be switched. Rapid switching of a plurality of different operating parts in a sleeve of the operating forceps is achieved through the switching assembly, so that the operation process is simplified, the multiple operating parts are prevented from repeatedly entering and exiting from the same port hole of the single-port laparoscope, the probability that instruments enter and exit and damage visceral organs in the abdominal cavity such as the port or the intestinal canal in the operation process is reduced, and the operation safety is improved.

Description

Technical Field

[0001] The invention relates to a multifunctional surgical forceps with switchable operating parts, belonging to the technical field of medical instruments. Background Art

[0002] Single-port laparoscopic surgery is a minimally invasive surgical technique that uses a single natural orifice (such as the umbilicus) or a single abdominal wall puncture to enter the abdominal cavity. The procedure is performed using surgical instruments in conjunction with an access platform (port). It offers advantages such as minimal trauma, rapid recovery, and excellent cosmetic results. Surgical instruments include forceps and scissors. For example, patent publication number CN118177917 B, dated January 28, discloses a multi-degree-of-freedom surgical forceps with replaceable heads. This allows for easy removal and replacement of the forceps' actuator tips to meet diverse surgical needs.

[0003] In related technologies, during single-port laparoscopic surgery, surgical instruments need to be frequently replaced to meet surgical needs. At this time, multiple surgical instruments are repeatedly inserted and exited through the same single-port laparoscope port, which makes the operation process cumbersome and affects the efficiency of the operation. In addition, the instrument insertion and exit and the operation process can easily cause accidental damage to the port port or intestinal tract and other abdominal organs, affecting the safety of the operation.

[0004] In order to overcome the shortcomings of the above-mentioned existing technologies, a multifunctional surgical forceps with switchable operating parts is specially designed. The operating parts include surgical forceps and surgical scissors. The switching components can realize rapid switching of multiple different operating parts in the surgical forceps sheath, which can simplify the operation process, avoid repeated entry and exit of multiple operating parts in the same port hole, improve surgical efficiency, reduce the probability of damage to abdominal organs such as ports or intestinal tracts during instrument entry and exit and surgery, and improve surgical safety. Summary of the Invention

[0005] This application aims to overcome the disadvantages of the prior art mentioned above, which requires frequent replacement of surgical instruments to meet surgical needs. In this case, multiple operating parts are repeatedly inserted and exited through the same port hole, which makes the operation process cumbersome and affects the efficiency of the operation. In addition, the instruments are easily damaged to the port hole or the intestinal tube and other intra-abdominal organs during the operation, which affects the safety of the operation. This application provides a multifunctional surgical forceps with switchable operating parts. The switching assembly enables rapid switching of multiple different operating parts within the surgical forceps casing, aiming to simplify the operation process, avoid the repeated insertion and exit of multiple operating parts into the same port hole, improve the efficiency of the operation, reduce the probability of damage to the port hole or the intestinal tube and other intra-abdominal organs during the insertion and exit of the instruments and the operation, and improve the safety of the operation.

[0006] An embodiment of the present application provides a multifunctional surgical forceps with switchable operating parts, hereinafter referred to as the multifunctional surgical forceps. The multifunctional surgical forceps includes a cannula, a fixed handle, an operating handle and a switching assembly. The inner cavity of the cannula is provided with multiple operating parts, and the multiple operating parts have different operating heads; the fixed handle is connected to one end of the cannula, and the fixed handle has a accommodating cavity communicated with the inner cavity of the cannula; the operating handle is rotatably connected to the fixed handle; the switching assembly is arranged in the accommodating cavity, connected to the operating handle, and abuts against the operating part; the operating handle is used to drive the switching assembly to rotate to abut against different operating parts, and drive the operating part abutting against the switching assembly to extend out of the cannula to work or retract the cannula to switch.

[0007] In some embodiments, each operating member includes a connected operating rod and an operating head, and the switching assembly includes a connecting tube and a switching rod; the connecting tube is arranged on the side of the operating member close to the fixed handle, and the inner cavity is rotatably connected to the first gear, and the first gear is meshed with a first rack and a second rack on both sides, and the extension direction is parallel to the sleeve. One end of the second rack extends out of the connecting tube and abuts against the operating member; one end of the switching rod is connected to the second gear, and the other end is connected to the first rack. The extension direction of the switching rod is parallel to the extension direction of the sleeve; multiple operating rods are evenly arranged around the periphery of the central axis of the switching rod, and along the extension direction of the switching rod, the projection of the second rack coincides with the projection of the operating rod, and the operating handle is used to drive the second gear to rotate.

[0008] In some embodiments, the switching assembly also includes a rotating rod and a third gear, the rotating rod is rotatably connected to the fixed handle through a first rotating shaft, a rotating drum is provided on the first rotating shaft, a ratchet mechanism is provided between the rotating drum and the first rotating shaft, and a first elastic member is provided on the first rotating shaft between the rotating rod and the rotating drum; the third gear is rotatably connected to the fixed handle through the second rotating shaft, and is meshed with the second gear, the rotation axis of the third gear is perpendicular to the rotation axis of the second gear, and the second rotating shaft is connected to the first rotating shaft through a transmission belt; the operating handle is used to drive the rotating rod to rotate to drive the second gear to rotate.

[0009] In some embodiments, a through slot is provided on the fixed handle, a firing pin is provided on the operating handle, the firing pin passes through the through slot and is placed in the accommodating cavity, and the rotating rod is located in the rotation path of the firing pin.

[0010] In some embodiments, the switching assembly also includes a first connecting rope, one end of which is connected to the fixed handle, located on the side of the firing pin away from the rotating rod and within the rotation path of the firing pin, and the other end is connected to the side of the switching rod away from the operating member.

[0011] In some embodiments, the multifunctional surgical forceps also includes a first fixed plate, a first limit block and multiple second connecting ropes. The first fixed plate is arranged in the accommodating cavity and is located between the second gear and the rotating cylinder. It has a sliding hole and multiple first through holes. The switching rod is passed through the sliding hole; the first limit block is arranged on the side of each first through hole away from the operating rod, and a limit groove is provided on the side close to the central axis of the switching rod. The switching rod is provided with a limit rod that is engaged with the limit groove; one end of the multiple second connecting ropes is respectively passed through the operating rod and connected to the operating head, and the other end passes through the first through hole and is connected to the first limit block.

[0012] In some embodiments, the multifunctional surgical forceps also includes a second fixing plate, which is arranged in the inner cavity of the sleeve and has multiple second through holes, and multiple operating rods are respectively passed through the second through holes; the operating rods located between the second fixing plate and the connecting tube are surrounded by second limit blocks, and second elastic members are provided between the second limit blocks and the second fixing plate.

[0013] In some embodiments, the multifunctional surgical forceps also includes a third fixed plate, which is arranged in the accommodating cavity and has a third through hole. The second gear is rotatably connected to the side of the third fixed plate away from the operating rod, and the switching rod passes through the third through hole and is connected to the second gear.

[0014] In some embodiments, the sleeve includes a straight tube and a tube head that are fixedly connected. The straight tube is connected to a fixed handle, and the tube head is arc-shaped.

[0015] In some embodiments, an outer wall of the fixed handle is provided with an indicator light and text logo.

[0016] In the embodiment of the present application, when the multifunctional surgical forceps enter and exit the port hole and the surgical incision, multiple operating parts are built into the cannula. During the process of entering and exiting the port hole and the surgical incision, only the blunt cannula contacts the port hole and the surgical incision, which can prevent the operating parts from scratching the access platform (port) or intestinal tract and other abdominal organs, improve surgical safety, reduce the loss rate of the access platform (port), and reduce the probability of secondary injury to the patient, reduce the incidence of postoperative complications, and help the patient recover after surgery.

[0017] In the embodiments of the present application, multiple operating heads are switched within the cannula, which can simplify the operation process, improve the convenience of single-port laparoscopic surgery, avoid the repeated entry and exit of multiple operating parts in the same port, improve surgical efficiency, and reduce the wear and tear of surgical instruments and access platforms (ports) during use, extending their service life, reducing maintenance and replacement costs, and reducing the medical resource investment required for instrument replacement and adjustment during surgery, such as surgical time and medical staff energy, thereby reducing medical resource consumption. It can also avoid the repeated entry and exit of multiple operating parts in the surgical incision, reduce the probability of damage to abdominal organs such as the intestine and causing pain to the patient, and improve surgical effectiveness and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of the multifunctional surgical forceps in one embodiment of the present application.

[0019] Figure 2 This is a cross-sectional view of a multifunctional surgical forceps in one embodiment of the present application.

[0020] Figure 3 for Figure 2 Cross-sectional view along AA direction.

[0021] Figure 4 for Figure 2 Cross-sectional view along direction BB.

[0022] Figure 5 for Figure 2 Cross-sectional view along CC direction.

[0023] Figure 6 for Figure 2 Magnified view of area D in the middle.

[0024] Figure 7 for Figure 2 Magnified view of area E in the middle.

[0025] Figure 8 for Figure 2 Enlarged view of the middle area E (section depth is greater than Figure 7 shown).

[0026] Figure 9 for Figure 2 Magnified view of middle area F.

[0027] Figure 10 for Figure 2 Magnified view of region G in the middle.

[0028] Figure 11 It is a partial cross-sectional view of the multifunctional surgical forceps in one embodiment of the present application.

[0029] Figure 12It is a partial cross-sectional view of the multifunctional surgical forceps in one embodiment of the present application.

[0030] Figure 13 This is a partial structural diagram of a switching component in an embodiment of the present application.

[0031] Figure 14 This is a schematic diagram of the partial structure of an operating handle in one embodiment of the present application.

[0032] Figure 15 Schematic diagram of the structure of the ratchet assembly in one embodiment of the present application.

[0033] The marks in the accompanying drawings are: 1-sleeve, 11-straight tube, 12-tube head, 2-operating member, 21-operating head, 22-operating rod, 3-fixed handle, 31-through groove, 32-limiting cylinder, 4-operating handle, 41-striker, 42-groove, 5-switching assembly, 51-connecting cylinder, 511-first gear, 512-first rack, 513-second rack, 52-switching rod, 521-limiting rod, 53-second gear, 54-rotating rod, 541-rotating cylinder, 542-ratchet mechanism, 55-third gear, 551-second rotating shaft, 56-transmission belt, 61-first connecting rope, 62-first fixed plate, 621-first through hole, 63-first limiting block, 631-limiting groove, 64-second connecting rope, 65-second fixed plate, 66-second limiting block, 67-second elastic member, 68-third fixed plate. DETAILED DESCRIPTION

[0034] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0036] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Furthermore, when a layer is referred to as being "under" another layer, it can be directly under or one or more intervening elements may also be present. It will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or one or more intervening elements may also be present.

[0037] In the case of using “including,” “having,” and “comprising” described herein, another component may be added unless a clear limiting term such as “only,” “consisting of,” etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as having one number.

[0038] It should be understood that although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of this application.

[0039] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately," "approximately," or "substantially" can mean within one or more standard deviations, and is not limited here.

[0040] Furthermore, in the specification, the phrase “planar distribution diagram” refers to a drawing when the target portion is viewed from above, and the phrase “cross-sectional diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0041] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0042] In the prior art, single-port laparoscopic surgery typically involves a single incision, typically located at the umbilicus, only about 1.5 cm long. The incision for surgical instruments is even smaller, and the lens also passes through this incision, further limiting the surgical field of view. In this scenario, multiple surgical instruments, such as surgical scissors and puncture needles, are repeatedly inserted and removed through the incision via an access port. This process can easily damage the soft access port or abdominal organs, such as the intestinal tract. Furthermore, the operation of surgical instruments often relies on two hands, making single-handed operation difficult, impacting both surgical effectiveness and efficiency.

[0043] To solve the above problems, the present invention provides a multifunctional surgical forceps with switchable operating parts, which can simplify the operation process, avoid repeated entry and exit of multiple operating parts in the same port hole, improve surgical efficiency, reduce the probability of damage to abdominal organs such as ports or intestines during instrument entry and exit and during surgery, and improve surgical safety.

[0044] The embodiment of the present application provides a multifunctional surgical forceps with a switchable operating member 2, hereinafter referred to as the multifunctional surgical forceps. Figure 1 、 Figure 2 and Figure 10 As shown, the multifunctional surgical forceps includes a cannula 1, a fixed handle 3, an operating handle 4 and a switching assembly 5. The inner cavity of the cannula 1 is provided with multiple operating members 2, and the multiple operating members 2 have different operating heads 21; the fixed handle 3 is connected to one end of the cannula 1, and the fixed handle 3 has a accommodating cavity communicated with the inner cavity of the cannula 1; the operating handle 4 is rotatably connected to the fixed handle 3; the switching assembly 5 is arranged in the accommodating cavity, connected to the operating handle 4, and abuts against the operating member 2; the operating handle 4 is used to drive the switching assembly 5 to rotate to abut against different operating members 2, and drive the operating member 2 abutting against the switching assembly 5 to extend out of the cannula 1 to work or retract into the cannula 1 to switch.

[0045] In the embodiment of the present application, in the initial state, the multiple operating members 2 of the multifunctional surgical forceps are all located within the cannula 1 and in a switchable mode. The medical professional selects a particular operating member 2 for surgical operation. At this point, the medical professional manually adjusts the operating handle 4 so that the switching assembly 5 abuts the operating member 2, and then drives the operating member 2 out of the cannula 1 to perform the operation. After the operation is completed, the operating member 2 is retracted into the cannula 1, returning the multiple operating members 2 to the switchable mode. At this point, another operating member 2 can be selected for surgical operation, and the operating handle 4 drives the switching assembly 5 to rotate and abut the selected operating member 2 to proceed with the next surgical operation.

[0046] In an embodiment of the present application, the operating member 2 can be switched and extended in sequence after the cannula 1 enters the surgical incision, or the switching operation can be performed first, and the operating member 2 to be worked first is selected, and then the operating member 2 is extended after the cannula 1 enters the surgical incision. The selection can be made according to actual needs, and the present application does not limit this.

[0047] In the embodiment of the present application, when the multifunctional surgical forceps enter and exit the port hole and the surgical incision, multiple operating parts 2 are built into the sleeve 1. During the process of entering and exiting the port hole and the surgical incision, only the blunt sleeve 1 is in contact with the port hole and the surgical incision, which can prevent the operating parts 2 from scratching the access platform (port) or intestinal tract and other abdominal organs, improve surgical safety, reduce the loss rate of the access platform (port), and reduce the probability of secondary injury to the patient, reduce the incidence of postoperative complications, and help patients recover quickly after surgery.

[0048] In the embodiment of the present application, multiple operating heads 21 are switched inside the sleeve 1, which can simplify the operation process, improve the operational convenience of single-port laparoscopic surgery, avoid multiple operating parts 2 repeatedly entering and exiting the same port hole, improve surgical efficiency, and reduce the wear of surgical instruments and access platforms (ports) during use, extend the service life of both, reduce maintenance and replacement costs, and also reduce the medical resource investment required for instrument replacement and adjustment during surgery, such as operation time, medical staff energy, etc., thereby reducing medical resource consumption. It can also avoid multiple operating parts 2 repeatedly entering and exiting the surgical incision, reduce the probability of damage to abdominal organs such as the intestine and causing pain to patients, and improve surgical results and safety. In the embodiment of the present application, medical personnel can single-handedly operate the multifunctional surgical forceps to switch and operate the operating element 2, which can simplify the operation process, shorten the operation time, improve the efficiency of the operation, and reduce the probability of complications caused by prolonged operation time or operational errors. In addition, single-handed operation allows medical personnel to more flexibly manipulate the instrument within the limited operating space, reduces the complexity of two-handed coordination, improves the accuracy and smoothness of the surgical operation, reduces the risk of operational errors, and improves the convenience, safety, and efficiency of the surgical operation.

[0049] In the embodiment of the present application, the cannula 1 may be provided with two operating members 2 with different operating heads 21, or three or four, depending on actual needs and not limited in this application. Operating heads 21 include, but are not limited to, scalpels, surgical scissors, forceps, vascular forceps, needle holders, tissue forceps, and retractors. Different operating heads 21 can be combined to form different types of surgical forceps, tailored to specific procedures and further improving surgical effectiveness and efficiency. The operating head 21 and cannula 1 can be constructed of stainless steel, while the fixed handle 3, operating handle 4, and operating rod 22 connected to the operating head 21 can be made of medical-grade ABS (acrylonitrile butadiene styrene) plastic. In the embodiment of the present application, the multifunctional surgical forceps can also be equipped with safety monitoring functions such as pressure sensors and position feedback systems to provide patients with safer and more reliable surgical protection and improve patients' medical experience and satisfaction.

[0050] In some embodiments, as Figure 2 、 Figure 3 、 Figures 7 to 12As shown, each operating member 2 includes a connected operating rod 22 and an operating head 21, and the switching assembly 5 includes a connecting tube 51 and a switching rod 52; the connecting tube 51 is arranged on the side of the operating member 2 close to the fixed handle 3, and the inner cavity is rotatably connected to the first gear 511, and the first gear 511 is meshed and connected on both sides with a first rack 512 and a second rack 513 whose extension directions are parallel to the sleeve 1. One end of the second rack 513 extends out of the connecting tube 51 and abuts against the operating member 2; one end of the switching rod 52 is connected to the second gear 53, and the other end is connected to the first rack 512. The extension direction of the switching rod 52 is parallel to the extension direction of the sleeve 1; multiple operating rods 22 are evenly arranged around the periphery of the central axis of the switching rod 52. Along the extension direction of the switching rod 52, the projection of the second rack 513 coincides with the projection part of the operating rod 22, so that the operating rod 22 is located within the moving path of the second rack 513, and the operating handle 4 is used to drive the second gear 53 to rotate.

[0051] In the embodiment of the present application, the medical staff manually drives the operating handle 4 to rotate, and drives the second gear 53 to rotate through the connecting structure. The second gear 53 drives the switching rod 52 connected to it to rotate, and the switching rod 52 drives the first rack 512 fixedly connected to it to rotate around its own central axis. The first rack 512 drives the connecting tube 51 and the second rack 513 to rotate synchronously, realizing the position switching of the second rack 513, so that the second rack 513 can abut against different operating parts 2, realizing the rapid switching of the operating parts 2 in the sleeve 1 to meet different surgical needs.

[0052] In the embodiment of the present application, the second gear 53 and the switching rod 52 can be connected by a sliding groove and a blocking block. The sliding groove is set on one of the second gear 53 and the switching rod 52, and the blocking block is set on the other of the two. The extension direction of the sliding groove is parallel to the extension direction of the switching rod 52, so that when the second gear 53 rotates, it drives the switching rod 52 to rotate synchronously.

[0053] In some embodiments, as Figure 6 、 Figure 7 、 Figure 11 and Figure 13 As shown, the switching assembly 5 further includes a rotating rod 54 and a third gear 55. The rotating rod 54 is rotatably connected to the fixed handle 3 through a first rotating shaft. A rotating cylinder 541 is provided on the first rotating shaft. Figure 15 As shown, a ratchet mechanism 542 is provided between the rotating drum 541 and the first rotating shaft, and a first elastic member is provided on the first rotating shaft located between the rotating rod 54 and the rotating drum 541; the third gear 55 is rotatably connected to the fixed handle 3 through the second rotating shaft 551, and is meshed with the second gear 53, the rotation axis of the third gear 55 is perpendicular to the rotation axis of the second gear 53, and the second rotating shaft 551 is connected to the first rotating shaft through the transmission belt 56; the operating handle 4 is used to drive the rotating rod 54 to rotate to drive the second gear 53 to rotate.

[0054] In the embodiment of the present application, the operating handle 4 is manually controlled to rotate. The operating handle 4 applies pressure to the rotating rod 54, causing the rotating rod 54 to rotate. The first elastic member is tightened, and the rotating rod 54 rotates the first rotating shaft that is perpendicular to and fixedly connected to it. The first rotating shaft rotates the rotating drum 541, which rotates the second rotating shaft 551 via the transmission belt 56. The second rotating shaft 551 rotates the third gear 55 that is fixedly connected to it, which in turn rotates the second gear 53. The switching lever 52, the first rack 512, and the second rack 513 enable rapid switching of the operating member 2 within the cannula 1 to accommodate different surgical needs. The first elastic member includes, but is not limited to, a torsion spring or a coil spring. The conveyor belt can also be replaced with a transmission chain. In this case, the rotating drum 541 and the second rotating shaft 551 are evenly provided with multiple gear teeth that cooperate to realize transmission between the rotating rod 54 and the third gear 55.

[0055] In the embodiment of the present application, after a switching operation is completed, the control operating handle 4 is rotated in the opposite direction to cancel the pressure applied to the rotating rod 54. The rotating rod 54 rotates back to its original position under the elastic force provided by the first elastic member. The rotation of the rotating rod 54 drives the first rotating shaft to rotate, but under the action of the ratchet mechanism 542 between the first rotating shaft and the rotating drum 541, the first rotating shaft does not drive the rotating drum 541 to rotate. Correspondingly, the transmission belt 56, the second rotating shaft 551, the third gear 55, the second gear 53, the switching rod 52, the first rack 512 and the second rack 513 do not change position, so that the second rack 513 is located above the operating rod 22 after switching, so as to facilitate the next switching operation.

[0056] In the embodiment of the present application, the number of operating parts 2 in the sleeve 1, the number of rotations of the operating handle 4, the maximum rotation angle of the rotating rod 54 (or the operating handle 4), the gear ratio between the rotating cylinder 541 and the third gear 55, and the gear ratio between the third gear 55 and the second gear 53 will all affect the switching of the operating part 2.

[0057] Specifically, in a certain example, the operating handle 4 is controlled to rotate 90 degrees, driving the rotating rod 54, the first rotating shaft and the rotating drum 541 to rotate 90 degrees synchronously. At this time, the transmission ratio of the rotating drum 541 and the third gear 55 is 1:1, driving the third gear 55 to rotate 90 degrees. The transmission ratio of the third gear 55 and the second gear 53 is 1:2. The third gear 55 drives the second gear 53 to rotate 45 degrees, and the switching rod 52 rotates 45 degrees synchronously. The operating parts 2 evenly distributed in four equal parts are provided in the sleeve 1. Then, the operating handle 4 can effectively rotate twice to realize the switching of adjacent operating parts 2.

[0058] In some embodiments, as Figure 6As shown, the fixed handle 3 is provided with a through slot 31, and the operating handle 4 is provided with a striker 41. The striker 41 passes through the through slot 31 and is placed in the accommodating cavity. The rotating rod 54 is located within the rotation path of the striker 41. Rotation of the operating handle 4 drives the striker 41 fixed thereto to rotate synchronously. The striker 41 abuts the rotating rod 54, driving the rotating rod 54 to rotate, thereby switching the operating member 2. The through slot 31 guides and limits the rotation of the operating handle 4. The length of the through slot 31 can limit the maximum rotation angle of the operating handle 4, thereby limiting the maximum rotation angle of the rotating rod 54.

[0059] In the embodiment of this application, Figure 14 As shown, a groove 42 is provided on the side of the striker 41 close to the rotating rod 54. When the striker 41 abuts against the rotating rod 54, part of the structure of the rotating rod 54 is engaged in the groove 42, which can improve the abutment stability of the striker 41 of the rotating rod 54, reduce the probability of the rotating rod 54 being separated from the striker 41 during rotation, resulting in the failure of the switching of the operating part 2, and improve the working stability of the multifunctional surgical forceps.

[0060] In some embodiments, as Figure 2 and Figure 6 As shown, the switching assembly 5 further includes a first connecting rope 61, one end of which is connected to the fixed handle 3 and is disposed on the side of the striker 41 away from the rotating rod 54 and within the rotation path of the striker 41, and the other end of which is connected to the side of the switching rod 52 away from the operating member 2. The operating handle 4 drives the striker 41 to rotate clockwise to abut against the first connecting rope 61. The end of the first connecting rope 61 connected to the fixed handle 3 is compressed and deformed, causing the end connected to the switching rod 52 to be pulled and move in a direction away from the operating rod 22, driving the switching rod 52 and the first rack 512 to synchronously move linearly in a direction away from the operating rod 22. The first rack 512 drives the second rack 513 to move in a direction close to the operating rod 22 via the first gear 511, tightly abutting against the operating rod 22 and driving the operating rod 22 to extend out of the cannula 1 to perform relevant surgical operations.

[0061] In this embodiment of the present application, a block is provided on the second gear 53, and a slot is provided on the switch lever 52. The slot extends parallel to the direction of extension of the switch lever 52. The block engages and slides with the slot, enabling synchronous rotation of the second gear 53 and the switch lever 52, as well as linear movement of the switch lever 52 relative to the second gear 53, without interference. The second gear 53 also limits and guides the linear movement of the switch lever 52, thereby improving the operational stability of the multifunctional surgical forceps.

[0062] In the embodiment of this application, Figure 2 and Figure 6As shown, a limiting cylinder 32 is also provided in the accommodating cavity, and the first connecting rope 61 is located between the limiting cylinder 32 and the rotating rod 54. The limiting cylinder 32 abuts against the first connecting rope 61 to limit the position of the first connecting rope 61, so that the section of the first connecting rope 61 between the switching rod 52 and the limiting cylinder 32 is straight and parallel to the extension direction of the switching rod 52, thereby pulling the switching rod 52 to move in a straight line; it is also used to make the section between the limiting cylinder 32 and the inner wall of the fixed handle 3 located in the rotation path of the striker 41, thereby driving the switching rod 52 to move in a straight line after being subjected to force.

[0063] In some embodiments, the first connecting rope 61 is rotatably connected to the switching lever 52. A T-shaped slot is provided at one end of the switching lever 52, and a T-shaped block is connected to one end of the first connecting rope 61. The block engages the slot and is rotatably connected. When the second gear 53 rotates the switching lever 52, the relative rotation of the block and slot offsets the torsional force exerted by the switching lever 52 on the first connecting rope 61. This prevents the first connecting rope 61 from tightening after repeated switching operations, reduces the likelihood of internal stress concentration, fatigue fracture, and increased friction and wear in the first connecting rope 61, and improves its service life. The first connecting rope 61 includes, but is not limited to, nylon rope and steel wire rope.

[0064] In some embodiments, as Figure 4 、 Figure 7 、 Figure 9 、 Figure 11 and Figure 12 As shown, the multifunctional surgical forceps also includes a first fixing plate 62, a first limiting block 63 and a plurality of second connecting ropes 64. The first fixing plate 62 is arranged in the accommodating cavity and is located between the second gear 53 and the rotating cylinder. It has a sliding hole and a plurality of first through holes 621, and the switching rod 52 is passed through the sliding hole; the first limiting block 63 is arranged on the side of each first through hole 621 away from the operating rod 22, and a limiting groove 631 is provided on the side close to the central axis of the switching rod 52, and a limiting rod 521 engaged with the limiting groove 631 is provided on the switching rod 52; one end of the plurality of second connecting ropes 64 is respectively passed through the operating rod 22 and connected to the operating head 21, and the other end extends out of the operating rod 22 and passes through the first through hole 621 to be connected with the first limiting block 63.

[0065] In the embodiment of the present application, when the switch lever 52 rotates to abut an operating member 2, the limiting rod 521 on the switch lever 52 engages with the limiting groove 631 of the first limiting block 63 corresponding to the operating member 22. The first limiting block 63 is fixedly connected to the first fixing plate 62. Along the extension direction of the switch lever 52, the projection of the first through hole 621 lies within the projection of the first limiting block 63. In other words, the size of the first limiting block 63 is larger than the diameter of the first through hole 621, thereby limiting the position of the first limiting block 63. The second connecting rope 64 includes, but is not limited to, a nylon rope and a steel rope.

[0066] In the embodiment, when the operating handle 4 is squeezed to stretch the operating member 2 out of the sleeve 1 by the pressure provided by the second rack 513, the operating head 21 moves in the direction away from the first limiting block 63, and the second connecting rope 64 is gradually tightened. When the operating head 21 is completely stretched out of the sleeve 1, the second connecting rope 64 is tightened to limit the moving distance of the operating member 2, so that the operating member 2 is in a fixed position. When the operating head 21 is a surgical knife, the position of the surgical knife can be fixed to perform cutting operation. When the operating head 21 is a surgical scissors, surgical forceps or a blood vessel clamp, the operating handle 4 can continue to apply pulling force to the first connecting rope 61, at this time, the part of the operating head 21 connected with the second connecting rope 64 in the closed state is forced to open, and when the pulling force applied to the first connecting rope 61 is reduced or removed, the operating head 21 is re-closed in cooperation with the elastic member such as spring, and the relevant surgical operation is realized in the opening and closing process.

[0067] In some embodiments, as shown in Figure 5 、 Figure 9 and Figure 12 , the multifunctional surgical forceps further comprise a second fixing plate 65 arranged in the inner cavity of the sleeve 1, the second fixing plate 65 has a plurality of second through holes, and the plurality of operating rods 22 are respectively arranged in the second through holes and are in sliding connection with the second fixing plate 65; the periphery of the operating rod 22 between the second fixing plate 65 and the connecting barrel 51 is annularly provided with a second limiting block 66, and the second elastic member 67 is arranged between each second limiting block 66 and the second fixing plate 65. The second elastic member 67 comprises a spring or a spring sheet.

[0068] In the embodiment, when the operating member 2 is stretched out of the sleeve 1 by the pressure provided by the second rack 513, the second limiting block 66 fixedly connected with the operating rod 22 is synchronously moved, the second limiting block 66 moves in the direction close to the second fixing plate 65, the second elastic member 67 is squeezed, and the second elastic member 67 is in a compressed state.

[0069] In the embodiment, after the operating member 2 is stretched out of the sleeve 1 and the work is completed, the force applied to the first connecting rope 61 by the operating handle 4 through the striker 41 is gradually reduced until removed, the pressure applied to the switching rod 52, the first rack 512, the second rack 513 and the operating rod 22 is removed, the force applied to the second elastic member 67 by the second limiting block 66 is also removed, the second limiting block 66 moves in the direction away from the second fixing plate 65 under the elastic force of the second elastic member 67, the operating rod 22 is driven to move in the direction close to the switching rod 52, and the sleeve 1 is retracted, so as to facilitate switching operation.

[0070] In the embodiment of the present application, the operating rod 22 retracts the sleeve 1, applies pressure to the second rack 513 to make it move in the direction close to the switching rod 52, and drives the first gear 511 and the switching rod 52 to move in a straight line in the direction close to the operating rod 22 and return to the position to be switched. The switching rod 52 drives the first connecting rope 61 back to the state before it was squeezed by the firing pin 41, so as to drive the switched operating rod 22 to perform the next surgical operation.

[0071] In the embodiment of the present application, a seal is provided between the second fixing plate 65 and the operating rod 22 to ensure airtightness during the operation and reduce the probability of postoperative complications.

[0072] In some embodiments, as Figure 3 、 Figure 8 and Figure 11 As shown, the multifunctional surgical forceps further includes a third fixing plate 68, which is disposed within the accommodating cavity and has a third through-hole. The second gear 53 is rotatably connected to the side of the third fixing plate 68 facing away from the operating rod 22. The switching rod 52 passes through the third through-hole and is connected to the second gear 53. The second gear 53 is rotatably connected to the third fixing plate 68 via an arcuate slide rail or slider. The third fixing plate 68 is used to provide support for the second gear 53. The third fixing plate 68 can also guide the linear movement of the switching rod 52 through the third through-hole, thereby improving the movement stability of the switching rod 52 and further improving the working stability of the multifunctional surgical forceps.

[0073] In some embodiments, as Figure 1 、 Figure 2 and Figure 10 As shown, the sleeve 1 includes a fixedly connected straight tube 11 and a tube head 12. The straight tube 11 is connected to the fixed handle 3. The tube head 12 is arc-shaped and has a rounded blunt head design, which can reduce the probability of damage to abdominal organs such as ports or intestines during the entry and exit of surgical forceps and the operation, thereby improving the safety of the operation.

[0074] In some embodiments, the outer wall of the fixed handle 3 is provided with indicator lights and text labels. Each operating member 2 is provided with a sensor, and the indicator lights are connected to the sensors in a one-to-one correspondence. Text labels are provided on the side of the indicator lights to indicate the type of operating member 2 corresponding to the indicator light. When the second rack 513 abuts the operating member 2, the sensor detects the second rack 513, or detects the operating member 2 is moved by force, and the corresponding indicator light illuminates, assisting medical personnel in determining the operating status of the multifunctional surgical forceps and improving surgical safety.

[0075] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific manner, but should not be construed as limiting the scope of the patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are all within the scope of the present application. Therefore, the scope of protection of the patent of the present application should be subject to the appended claims.

Claims

1. A multifunctional surgical forceps with switchable operating parts, characterized in that: include: A sleeve (1), wherein a plurality of operating members (2) are provided in an inner cavity, and the plurality of operating members (2) have different operating heads (21); A fixed handle (3) is connected to one end of the sleeve (1), and the fixed handle (3) has a receiving cavity that communicates with the inner cavity of the sleeve (1); An operating handle (4) is rotatably connected to the fixed handle (3); A switching assembly (5) is disposed in the accommodating cavity, connected to the operating handle (4), and abuts against the operating member (2); The operating handle (4) is used to drive the switching assembly (5) to rotate so as to abut against different operating members (2), and to drive the operating member (2) abutting against the switching assembly (5) to extend out of the sleeve (1) to perform work or to retract the sleeve (1) to perform switching.

2. The multifunctional surgical forceps with switchable operating parts according to claim 1, characterized in that: Each operating member (2) includes a connected operating rod (22) and an operating head (21), and the switching assembly (5) includes a connecting cylinder (51) and a switching rod (52); The connecting tube (51) is arranged on a side of the operating member (2) close to the fixed handle (3), and the inner cavity is rotatably connected to the first gear (511). The first gear (511) is meshedly connected to the first rack (512) and the second rack (513) on both sides. One end of the second rack (513) extends out of the connecting tube (51) and abuts against the operating member (2). One end of the switching rod (52) is connected to the second gear (53), and the other end is connected to the first rack (512); a plurality of operating rods (22) are evenly arranged around the periphery of the central axis of the switching rod (52), and the operating handle (4) is used to drive the second gear (53) to rotate.

3. The multifunctional surgical forceps with switchable operating parts according to claim 2, characterized in that: The switching assembly (5) further includes a rotating rod (54) and a third gear (55). The rotating rod (54) is rotatably connected to the fixed handle (3) via a first rotating shaft. A rotating cylinder (541) is provided on the first rotating shaft. A ratchet mechanism (542) is provided between the rotating cylinder (541) and the first rotating shaft. A first elastic member is provided on the first rotating shaft between the rotating rod (54) and the rotating cylinder (541). The third gear (55) is rotatably connected to the fixed handle (3) via the second rotating shaft (551) and is meshed with the second gear (53). The rotation axis of the third gear (55) is perpendicular to the rotation axis of the second gear (53). The second rotating shaft (551) is connected to the first rotating shaft via a transmission belt (56). The operating handle (4) is used to drive the rotating rod (54) to rotate, thereby driving the second gear (53) to rotate.

4. The multifunctional surgical forceps with switchable operating parts according to claim 3, characterized in that: The fixed handle (3) is provided with a through slot (31), the operating handle (4) is provided with a striker (41), the striker (41) passes through the through slot (31) and is placed in the accommodating cavity, and the rotating rod (54) is located in the rotation path of the striker (41).

5. The multifunctional surgical forceps with switchable operating parts according to claim 4, characterized in that: The switching assembly (5) further includes a first connecting rope (61), one end of which is connected to the fixed handle (3), is arranged on a side of the striker (41) away from the rotating rod (54) and is located within the rotation path of the striker (41), and the other end is connected to a side of the switching rod (52) away from the operating member (2).

6. The multifunctional surgical forceps with switchable operating parts according to claim 2, characterized in that: Also includes: A first fixing plate (62) is disposed in the accommodating cavity and located between the second gear (53) and the rotating cylinder, and has a sliding hole and a plurality of first through holes (621). The switching rod (52) is passed through the sliding hole. A first limiting block (63) is provided on a side of the first through hole (621) away from the operating rod (22), a limiting groove (631) is provided on a side close to the central axis of the switching rod (52), and a limiting rod (521) is provided on the switching rod (52) to be engaged with the limiting groove (631); A plurality of second connecting ropes (64) have one end each passing through the operating rod (22) to be connected to the operating head (21), and the other end passing through the first through hole (621) to be connected to the first limiting block (63).

7. The multifunctional surgical forceps with switchable operating parts according to claim 6, characterized in that: It also includes a second fixing plate (65), which is arranged in the inner cavity of the sleeve (1) and has a plurality of second through holes, and the plurality of operating rods (22) are respectively inserted into the second through holes; A second limiting block (66) is provided around the periphery of the operating rod (22) located between the second fixing plate (65) and the connecting tube (51), and a second elastic member (67) is provided between the second limiting block (66) and the second fixing plate (65).

8. The multifunctional surgical forceps with switchable operating parts according to claim 2, characterized in that: The invention also includes a third fixing plate (68), which is arranged in the accommodating cavity and has a third through hole; the second gear (53) is rotatably connected to the side of the third fixing plate (68) away from the operating rod (22), and the switching rod (52) passes through the third through hole and is connected to the second gear (53).

9. The multifunctional surgical forceps with switchable operating parts according to claim 1, characterized in that: The sleeve (1) comprises a straight tube (11) and a tube head (12) which are fixedly connected. The straight tube (11) is connected to the fixed handle (3), and the tube head (12) is in an arc shape.

10. The multifunctional surgical forceps with switchable operating parts according to claim 1, characterized in that: The outer wall of the fixed handle (3) is provided with an indicator light and a text mark.

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