CN115670637A

CN115670637A - Laparoscopic surgical tool

Info

Publication number: CN115670637A
Application number: CN202211290341.8A
Authority: CN
Inventors: 严泽军; 程跃
Original assignee: Ningbo First Hospital
Current assignee: Ningbo First Hospital
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-02-03

Abstract

The invention provides a laparoscopic surgical tool, which comprises a holding component, a connecting piece and an inner core component, wherein the holding component, the connecting piece and the inner core component are detachably connected with each other, the inner core component comprises a shear body, and the shear body comprises a first shear body, a second shear body and a suction channel. The first scissors body is the stiff end, the second scissors body is the expansion end, attract the passageway certainly first scissors body extends to the gripping member, the import of attracting the passageway set up in first scissors body, with first scissors body with the second scissors body carries out the attraction of tissue when cuting the operation, provides clear field of vision for the operation.

Description

Laparoscopic surgical tool

Technical Field

The invention relates to the field of medical equipment, in particular to a laparoscopic surgical tool.

Background

Laparoscopes are endoscopes used for intra-abdominal examination and treatment. The optical endoscope is applied to a patient under the condition of no pain, the condition in the abdominal cavity of the patient can be directly and clearly observed, pathogenic factors can be known, and meanwhile, the operation treatment can be carried out on the abnormal condition. Laparoscopic surgery is also known as "keyhole" surgery. By applying the laparoscope system technology, doctors only need to open a plurality of keyhole-type small holes around the operation site of the patient, and can directly observe the internal condition of the patient in front of a computer screen without opening the abdomen, thereby implementing accurate operation. Compared with the traditional operation, the laparoscopic operation has small scar after operation, meets the aesthetic requirement and is more acceptable to patients. Minimally invasive surgery is a general trend and pursuit of surgical development. With the rapid advance of the manufacturing technology of medical instruments and equipment, the fusion of related subjects lays a firm foundation for the development of new technology and new method, and the more and more skillful operation of doctors makes many of the past open operations replaced by the intracavitary operations, and most of the surgical operations can adopt minimally invasive endoscopic operations. The advantages of laparoscopic surgery are very evident compared to traditional surgery, above all with very little trauma, requiring only a few small incisions of less than 1cm, and very little scarring, which is more noticeable for young people and beauty-conscious women. Secondly, the operation is a single-knife straight-in entry, the damage to surrounding tissues is reduced to the minimum, and the chance of postoperative adhesion is reduced. Third, the patient had significantly reduced post-operative wound pain. Fourthly, the number of hospital stay days is small, some patients can be discharged after 2-3 days, and the patients can completely recover health and put into operation after 7 days, so that the burden cost of the patients is greatly reduced, and the turnover rate of hospital beds is accelerated.

When laparoscopic surgery is carried out, laparoscopic surgery scissors are very important laparoscopic surgery tools, and when laparoscopic surgery is carried out, the laparoscopic surgery scissors are mainly used for cutting pathological tissues, but the traditional laparoscopic surgery scissors have single function and only have a shearing function, and do not have the functions of electrocoagulation, suction flushing and the like, so that when surgery is carried out, instruments for surgery need to be frequently replaced, the operation is complicated, the surgery time is long, the surgery quality is difficult to improve, and uncontrollable factors are easy to appear in long-time surgery. Although some existing laparoscopic scissors have the functions of electrocoagulation, excision and the like, the functions are single, only one function can be realized generally, the functions are single, and the laparoscopic scissors do not have multiple functions, so that the laparoscopic scissors are inconvenient to use, surgical instruments need to be replaced frequently, and the operation time is long.

Therefore, if the suction and the shearing can be combined together in the operation process of the same laparoscopic surgical instrument, the operation efficiency can be greatly improved.

Disclosure of Invention

An advantage of the present invention is to provide a laparoscopic surgical tool that can perform suction while cutting tissue, keeping the operating field of the operation clear.

Another advantage of the present invention is to provide a laparoscopic surgical tool, in which an inlet of a suction channel is formed at a scissor body, thereby ensuring that the suction channel can directly act on a cut tissue and suck the cut tissue at a first time.

Another advantage of the present invention is to provide a laparoscopic surgical tool having both suction and irrigation channels, combining the suction and flushing integrated function to the scissors body, and having a variety of functions to cope with different usage scenarios.

Another advantage of the present invention is to provide a laparoscopic surgical tool that provides a suction channel and an irrigation channel to both sides of a scissor body, respectively, to flow irrigation water formed through a cutting portion of the scissor body for easy observation of the cutting condition.

Another advantage of the present invention is to provide a laparoscopic surgical tool that facilitates the extraction of the effusion formed at the surgical operation part, thereby improving the efficiency of the operation.

Another advantage of the present invention is to provide a laparoscopic surgical tool that is detachably divided into three parts to replaceably replace the core member in different scenes.

Another advantage of the present invention is to provide a laparoscopic surgical tool that detachably couples a scissor body to a grip member for repeated use after a sterilization process, thereby reducing the use cost.

Another advantage of the present invention is to provide a laparoscopic surgical tool, the cutting bodies of which can perform blunt and sharp separation in a difficult-to-operate scene, thereby completing a surgical operation.

Another advantage of the present invention is to provide a laparoscopic surgical tool that can additionally perform electrocoagulation hemostasis, electrotome cutting, etc. operations to assist laparoscopic surgery.

According to an aspect of the present invention, there is provided a laparoscopic surgical tool,

the laparoscopic surgical tool includes:

a holding member;

a connector removably connected to an end of the gripping member; and

an inner core member, the inner core member comprising a scissors body and a second tube, the scissors body being mounted to a front end of the second tube, the scissors body being mounted to an end of the connector, wherein the scissors body has a suction passage, the scissors body is adapted to cut tissue inside the patient, the suction passage extends from the scissors body to the holding member to expel the tissue outside the body, providing a clear view of the scissors body for cutting.

According to an embodiment of the present invention, the scissors body includes a first scissors body and a second scissors body, the first scissors body is fixedly connected to the second tube, the second scissors body is movably connected to the first scissors body, and the inlet of the suction channel is disposed in the first scissors body.

According to an embodiment of the invention, the first scissor body comprises a first end surface and a first blade back, the first end surface is located at the front end of the scissor body, the first blade back is a blunt surface, and the inlet of the suction channel is arranged at the first blade back.

According to an embodiment of the invention, the first scissors body comprises a first end face and a first blade back, the first end face is located at the front end of the scissors body, the first blade back is a blunt surface, and the inlet of the suction channel is arranged at the first end face.

According to an embodiment of the present invention, the scissors body further has a pouring channel, the pouring channel penetrates through the first blade back, an inlet of the pouring channel is disposed at the first blade back, and the pouring channel is independent from the suction channel.

According to an embodiment of the invention, the second scissors body comprises a second end surface and a second blade back, and the second end surface and the second blade back are arranged on the first end surface and the first blade back in a mirror image mode.

According to an embodiment of the present invention, the scissors body further has a perfusion channel, and an inlet of the perfusion channel is disposed on the second end surface, so as to form a flushing and sucking water flow between the first scissors body and the second scissors body, and to disperse the sheared tissue between the first scissors body and the second scissors body.

According to one embodiment of the invention, wherein the first blade back and the second blade back have rounded surfaces to push tissue apart, the first shear body further comprises a first blade edge, the second shear body further comprises a second blade edge, the first blade edge and the second blade edge having sharpened surfaces, the first blade edge and the second blade edge being oppositely disposed to shear tissue.

According to an embodiment of the present invention, the connector includes a connection unit and a first tube, the connection unit is located at a rear end of the first tube, and the connector is detachably connected to the grip member through the connection unit.

According to an embodiment of the present invention, the inner core member further comprises a second tube installed inside the first tube, the second tube having an inner cavity communicating a front end and a rear end of the second tube.

According to an embodiment of the present invention, the holding member includes a movable handle and a fixed handle, and has a suction port, the movable handle is movably connected to the fixed handle, the suction port is provided in the fixed handle, wherein the suction passage communicates with the suction port to communicate between inside and outside of the patient's body.

According to an embodiment of the present invention, the laparoscopic surgical tool includes a driving member disposed in the lumen, the driving member having a front end connected to the scissors body and a rear end connected to the holding member, wherein the driving member includes a front driving unit, a rear driving unit and a driving link, the front driving unit is connected to the second scissors body, the rear driving unit is connected to the movable handle, the driving link has a front end connected to the front driving unit and a rear end connected to the rear driving unit, and when the movable handle is controlled, the second scissors body movably approaches the first scissors body to perform a cutting operation.

According to another aspect of the present invention, there is provided a laparoscopic surgical tool,

the laparoscopic surgical tool includes:

a gripping member providing a grip for an operator;

a connector extending outwardly from the gripping member; and

the inner core component is detachably connected to the front end of the connecting piece and comprises a shear body, the shear body is used for shearing, the shear body comprises a first shear body and a second shear body, the first shear body is fixedly installed relative to the second shear body, the second shear body is movably connected to the first shear body, the shear body is further provided with a suction channel, and the suction channel penetrates through the front end face and the rear end face of the first shear body.

According to an embodiment of the present invention, the scissors body further has a filling channel, the filling channel penetrates through the front and rear end surfaces of the second scissors body, and the suction channel is separated from the filling channel.

According to an embodiment of the present invention, the laparoscopic surgical tool further comprises an electrically conductive unit located at a boundary between the first scissor body and the second scissor body to perform electrocoagulation hemostasis when the scissor bodies are sheared.

Drawings

FIG. 1 is an overall view of a laparoscopic surgical tool according to a preferred embodiment of the present invention.

Fig. 2 is an exploded view of the laparoscopic surgical tool according to the preferred embodiment of the present invention.

Fig. 3 is a perspective view of the transmission of the laparoscopic surgical tool according to the preferred embodiment of the present invention.

Fig. 4 is a partially enlarged view of the laparoscopic surgical tool according to the preferred embodiment of the present invention.

Fig. 5 is a schematic view illustrating the arrangement of the channels of the laparoscopic surgical tool according to the preferred embodiment of the present invention.

Fig. 6 is a partially enlarged view of a laparoscopic surgical tool according to a second preferred embodiment of the present invention.

Fig. 7 is an exploded perspective view of the laparoscopic surgical tool, in accordance with the preferred embodiment of the present invention.

Fig. 8 is a partially enlarged view of a laparoscopic surgical tool, in accordance with a third preferred embodiment of the present invention.

Fig. 9 is a partially enlarged view of a laparoscopic surgical tool according to a fourth preferred embodiment of the present invention.

Fig. 10 is a partially enlarged view of a laparoscopic surgical tool, in accordance with a fifth preferred embodiment of the present invention.

Fig. 11 is a partially enlarged view of a laparoscopic surgical tool, in accordance with a sixth preferred embodiment of the present invention.

Fig. 12 is a partially enlarged view of a laparoscopic surgical tool, in accordance with a seventh preferred embodiment of the present invention.

Detailed Description

The following description is provided to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

As shown in FIG. 1, a laparoscopic surgical tool in accordance with a preferred embodiment of the present invention is illustrated. The laparoscopic surgical tool is applied to laparoscopic surgery, and medical staff is adapted to perform a surgical operation on the abdominal cavity of a patient through the laparoscopic surgical tool in cooperation with a visualization unit. The laparoscopic surgical tool has a shearing function to extend into the patient's tissue to treat the lesion site.

Referring to fig. 2, there is shown an exploded perspective view of the laparoscopic surgical tool provided with the present invention, the laparoscopic surgical tool includes a grip member 10, a connecting member 20, and an inner core member 30. The grip member 10, the connector 20 and the core member 30 are detachably connected to each other. That is, the laparoscopic surgical tool may be disassembled in three stages, i.e., the grip member 10, the connector 20, and the inner core member 30.

For convenience of explanation, the laparoscopic surgical tool extends to the inside of the patient body during a surgical operation to define a front portion, and conversely, extends to the outside of the patient body to define a rear portion.

The connector 20 and the core member 30 are adapted to be mounted to the front end of the grip member 10. The inner core member 30 is adapted to be installed inside the connection member 20. That is, the core member 30 is adapted to be mounted to the front of the grip member 10 through the connector 20. In other words, the inner core member 30 is filled inside the connector 20, and the rear end is mounted to the front end of the grip member 10.

An operator is adapted to hold the gripping member 10 to control the laparoscopic surgical tool. The connector 20 functions as a butt joint. The inner core member 30 is adapted to extend subcutaneously into a patient for laparoscopic surgical procedures. The gripping member 10 is linked to the inner core member 30. That is, the operator manipulates the core member 30 by controlling the grip member 10 to perform a cutting function of the front end.

The holding member 10 has holding and locking functions, and the holding member 10 comprises a movable handle 11 and a fixed handle 12, wherein the fixed handle 12 is positioned at the front end of the movable handle 11. The fixed handle 12 is inoperable, and the movable handle 11 is pressably attached to a rear end of the fixed handle 12. In other words, the movable handle 11 functions as a control, and the fixed handle 12 functions as a grip.

It should be noted that the holding member 10 further includes a plug 13 and a locking groove 15. The cock 13 is disposed at an upper portion of the stationary handle 12, and the cock 13 is rotatably coupled to the stationary handle 12. The engaging groove 15 is located in the fixed handle 12. Further, the engaging groove 15 is located at the front end of the fixed handle 12. The end of the connecting member 20 is adapted to extend into the engaging groove 15. That is, the connector 20 is detachably connected to the grip member 10 through the engaging groove 15. The plug 13 extends into the engaging groove 15 from the top to the bottom. The tap 13 has two extreme conditions, a relaxed condition and a tightened condition. When the cock 13 is in a relaxed state, the cock 13 extends only to the engaging groove 15 and does not contact the coupling member 20; when the cock 13 is in a tightened state, the cock 13 extends downward from above into the engagement groove 15 and contacts the coupling member 20. That is, the precise fixing of the coupling piece 20 and the grip member 10 is achieved by the tap 13. In other words, the operator performs the three-stage disassembly transformation of the laparoscopic surgical tool through the cock 13.

The connecting element 20 comprises a connecting unit 21 and a first tube 22, the first tube 22 being cylindrical in shape. The rear end of the first tube 22 is connected to the gripping member 10. The connection unit 21 is located at the rear end of the first pipe body 22. The connection unit 21 protrudes from the first pipe 22. When the connecting member 20 is inserted into the engaging groove 15, the connecting unit 21 extends into the engaging groove 15. The coupling unit 21 is adapted to be secured by the tap 13. That is, in a state where the cock 13 is fastened, the cock extends downward from above into the engagement groove 15, and fastens the coupling unit 21. The tap 13 is not in contact with the coupling unit 21 when the tap 13 is in a relaxed state. The first tube 22 is adapted to be engaged by a notch of the holding member 10, the notch extending inward to form the engaging groove 15.

Specifically, the core member 30 includes a second tube 31 and a scissor body 32, the scissor body 32 is located at the front end of the second tube 31, and the diameter of the second tube 31 is smaller than that of the first tube 22. The second tube 31 is adapted to be engaged with the inside of the first tube 22. In other words, the first tube 22 is adapted to wrap around the second tube 31. When the second tube 31 is located inside the first tube 22, the scissors 32 are located outside the first tube 22. That is, when the core member 30 is mounted on the connector 20, the scissors 32 protrude from the plane of the front end surface of the first tube 22.

The shear body 32 is adapted to shear subcutaneous tissue of a patient for performing a laparoscopic surgical procedure. The scissors 32 extend through the second tube 31 into the patient's body. The scissors 32 are linked to the grip member 10. Specifically, the movable handle 11 and the fixed handle 12 move in a staggered manner to drive the scissors body 32 to realize a cutting function. In the present exemplary embodiment, the scissors body 32 is embodied as a single-action scissors. That is, the cutting of the cutting body 32 is performed by the movable handle 11. The front end of the second tube 31 is connected to the scissors 32, and the rear end is engaged in the engaging groove 15 to link the movable handle 11.

It should be noted that the scissors 32 include a first scissors body 321 and a second scissors body 322. The second scissors body 322 is integrally connected to the second tube 31. That is, the second scissors body 322 is formed at the front end of the second tube 31 in a blade shape. The first scissor body 321 is movably disposed inside the connector 20. In other words, the second scissors body 322 is relatively fixedly connected to the fixed handle 12 through the connecting member 20. The first scissors body 321 is linked to the movable handle 11 from the front end to the rear end by a driving member 40.

The first scissor body 321 is movable relative to the second scissor body 322. Specifically, the first scissor body 321 is rotatably mounted to one side of the second scissor body 322 along a rear end by the driving member 40. The first scissor body 321 can rotate within an angle range of 0-180 degrees. When the first scissor body 321 rotates, the bottom of the first scissor body 321 contacts the top of the second scissor body 322, and the first scissor body 321 and the second scissor body are staggered to complete the shearing operation.

Specifically, the first shear body 321 includes a first end surface 3211, a first blade back 3212, and a first blade edge 3213. For convenience of illustration, a side of the first shear body 321 adjacent to the first blade 3213 is defined as a bottom, and a side adjacent to the second blade back 3212 is defined as a top. Thus, the first end surface 3211 is located at the front end of the first cutter body 321, the first blade back 3212 is located at the top of the first cutter body 321, and the first blade edge 3213 is located at the bottom of the first cutter body 321. The first blade back 3212 and the first end surface 3211 are implemented as smooth surfaces, that is, blunt separation may be achieved by the first end surface 3211 and the first blade back 3212 when the laparoscopic surgical tool is extended into a patient. The laparoscopic surgical tool is pushed and pulled to pass through the body tissue. The first end surface 3211 and the first blade back 3212 are not formed to be sharp and also to prevent unnecessary tissue infection by unnecessarily scratching subcutaneous tissue of a patient during the advancement of the laparoscopic surgical tool.

The first blade 3213 rotates within a certain range in a plane in which the first and

second blade bodies

321 and 322 intersect. The second scissor body 322 further comprises a second blade 3223, and the second blade 3223 is located at the top of the second scissor body 322. The second blade 3223 is parallel to the second tube 31. During the rotation of the first blade 3213, the shearing operation may be completed when the first blade 3213 and the second blade 3223 contact each other. In other words, since the first blade 3213 and the second blade 3223 have sharp surfaces, they contact each other to perform shearing. During the operation of the laparoscopic surgical tool, the first and

second blades

3213 and 3223 achieve a sharp separation of tissue.

It should be noted that the scissors 32 further has a suction channel 323, and the second scissors 322 further includes a second end 3221. The second end surface 3221 is disposed at the front portion of the second scissors body 322. As shown in fig. 4, an inlet of the suction passage 323 is disposed at the second end surface 3221. The suction channel 323 extends through the second scissors body 322 and extends backward to the holding member 10. The suction passage 323 is adapted to suck the effusion and the like inside the human body.

Fig. 5 is a schematic view illustrating a pipe arrangement of the laparoscopic surgical tool provided by the present invention. The suction passage 323 extends from the second end surface 3221 of the second scissor body 322 to the grip member 10 from front to back, that is, the suctioned effusion and the like are suctioned from the suction passage 323 to front and back. In other words, the suction passage 323 penetrates the second pipe 31 from the front end surface to the rear end surface. The suction passage 323 extends horizontally from the front end to the grip member 10. The gripping member 10 also has a suction port 14, and the suction port 14 is provided communicating from the front end to the top of the gripping member 10. The suction ports 14 are independently spaced apart from the engagement groove 15. That is, the suctioned liquid or the like does not affect the connection between the connector 20 and the grip member 10 in the engagement groove 15. Thereby, the suctioned tissue fluid or the like is suctioned from the front end to the rear end of the laparoscopic surgical tool through the suction passage 323. That is, the suctioned tissue fluid or the like is transferred from the inside of the patient to the outside thereof. The suction port 14 is an outlet of the suction passage 323, that is, the tissue sucked by the suction passage 323 is discharged from the suction port to the outside of the patient.

Fig. 3 is a perspective view illustrating the driving of the laparoscopic surgical tool according to the present invention. The second tube 31 has an inner cavity 311. The inner cavity 311 is independently spaced from the suction passage 323. That is, the inner cavity 311 and the suction passage 323 do not interfere with each other. The drive member 40 is disposed in the lumen 311. The driving member 40 extends to the scissors body 32 at the front end and to the grip member 10 at the rear end.

In particular, the drive member 40 includes a front drive unit 42, a rear drive unit 41 and a drive connection 43. The rear end of the front driving unit 42 is connected to the driving link 43, and the rear end of the driving link 43 is connected to the rear driving unit 41. That is, the drive link 43 has a front end connected to the front drive unit 42 and a rear end connected to the rear drive unit 41. The front driving unit 42 is movably connected to the first scissor body 321. The rear drive unit 41 is movably disposed in the engagement groove 15. The rear drive unit 41 is linked to the front drive unit 42. In other words, displacement of the rear drive unit 41 may cause movement of the front drive unit 42. The operator may control the rear drive unit 41 for the purpose of twisting the front drive unit 42. Further, a passage is formed between the engaging groove 15 and the movable handle 11, and when the movable handle 11 is mounted to the fixed handle 12 in a pressable manner, the front end of the movable handle 11 extends into the engaging groove 15 through the passage.

An operator can control the pressing of the movable handle 11 to drive the rear driving unit 41 to drive the front driving unit 42 to move through the driving connecting piece 43, and further drive the first scissors body 321 to move relative to the second scissors body 322, so as to realize the cutting function.

The drive member 40 is in this embodiment implemented as a link structure, i.e. the front drive unit 42 at the front end is moved by the rear drive unit 41 at the rear end. The drive connection 43 serves as a connection drive.

Compared with the conventional instruments, the laparoscopic surgical tool in this embodiment additionally has the suction channel 323 for introducing a suction instrument, or directly performs negative pressure suction by using a high pressure scene in the body of the surgical patient. When the tissue is cut by the laparoscopic surgery tool, the clear visual field of the cutting operation is kept, the laparoscopic surgery tool can extend into the body of a patient more conveniently and can penetrate into a scene which is difficult to enter in the past, and the surgery efficiency is improved.

Fig. 6 is a partially enlarged view of a laparoscopic surgical tool according to a second preferred embodiment of the present invention. The laparoscopic surgical tool is different from the above-described embodiments mainly in the arrangement difference of a suction passage 323A and the overall structural difference.

The laparoscopic surgical tool includes a grip member 10A, a connector 20A, and an inner core member 30A. The grip member 10A is integrally connected to the attachment member 20A. The core member 30A is detachably mounted to the connector 20A. That is, the laparoscopic surgical tool has a disassembly function. By detaching the inner core member 30A, the inner core member 30A that has been operated into the patient is individually cleaned and sterilized. Or the front ends with different functions are replaced according to the internal condition of the patient and the use requirement.

Specifically, unlike the above-described embodiment, the core member 30A includes a scissor body 32A and has an inner cavity 311A, and the scissor body 32A performs various surgical functions. The scissor body 32A is detachably mounted to the front end of the attachment 20A. That is, the scissors 32A are replaced according to different adaptive scenes according to specific surgical conditions.

The inner cavity 311A extends through the connector 20A. That is, the inner cavity 311A is provided inside the connector 20A to communicate the front and rear ends of the laparoscopic surgical tool. The lumen 311A is adapted to communicate between inside and outside the patient's body.

The inner cavity 311A is adapted to receive a driving member 40 to link the grip member 10A and the core member 30A. Specifically, the holding member 10A includes a movable handle 11A and a fixed handle 12A, and has an engaging groove 15, the fixed handle 12A is integrally connected to the connecting member 20A, and the movable handle 11A is movably mounted to a rear end of the fixed handle 12A. The engagement groove 15 is provided in the fixed handle 12A, and the front end of the movable handle 11A is engaged with the rear end of the engagement groove 15. That is, the movable handle 11A is movable and rotatable within a predetermined range around a boundary between the movable handle 11A and the engaging groove 15 as an axis.

In particular, the movable handle 11A is movably engaged with the engaging groove 15, and the rear end of the driving member 40 is located in the engaging groove 15. Further, the rear end of the driving member 40 is linked to the movable handle 11A. That is, movement of the movable handle 11A may cause movement of the driving member 40. Since the front end of the driving member 40 is connected to the inner core member 30A. In the present embodiment, the front end lever of the driving member 40 is connected to the scissor body 32A. Thereby, the movable handle 11A is movably connected to the scissor body 32A through the driving member 40A. In other words, the scissor body 32A is controlled by the movable handle 11A.

It should be noted that the shear body 32A includes a first shear body 321A and a second shear body 322A and has a suction channel 323A. The first scissor body 321A is implemented as a stationary one in this embodiment. That is, the first scissor body 321A is vertically oriented in the horizontal direction. The second shear body 322A is embodied to be movable. The second scissor body 322A is movably connected to the first scissor body 321A. In particular, the second scissor body 322A is movably connected to the drive member 40A. In other words, the driving member 40A drives the second scissor body 322A to move. Still further, the movable handle 11A controls the movement of the second scissor body 322A through the driving member 40A. The operator controls the second scissor body 322A to perform a cutting task by controlling the movable handle 11A.

The suction channel 323A is arranged in the present exemplary embodiment on the first cutting body 321A, the first cutting body 321A having a first end surface 3211A, a first blade back 3212A and a first blade edge 3213A. The first blade back 3212A is implemented as a blunt surface, and the first blade edge 3213A is implemented as a sharp surface. The first end surface 3211A is located at the foremost end of the first scissor body 321A. In the present embodiment, the inlet of the suction passage 323A is disposed on the first blade back 3212A. That is, the suction passage 323A extends rearward from the first blade back 3212A to the rear end of the shear body 32A. In addition, the suction channel 323A also penetrates the connecting member 20A to extend to the holding member 10A. The suction channel 323A is adapted to suck effusion or the like in the patient. In other words, the operator sucks the effusion fluid in the patient through the suction passage 323A.

In this embodiment, the arrangement position of the suction passage 323A is changed. Since the first blade back 3212A has more surface area than the first end surface 3211A, the suction channel 323A has a larger inner diameter than in the previous embodiment, i.e., more fluid is allowed to accumulate in the patient's tissue through the suction channel 323A. Solid impurities and the like are allowed to pass through the suction passage 323A in a large amount.

Fig. 8 is a partially enlarged view of a laparoscopic surgical tool according to a third preferred embodiment of the present invention. The laparoscopic surgical tool is changed from the above-described embodiment mainly in that the arrangement position of the channels is changed.

The laparoscopic surgical tool includes a grip member 10, a connector 20, and an inner core member 30. The grip member 10, the connector 20 and the core member 30 together constitute the laparoscopic surgical tool in three stages. The rear end of the connector 20 is mounted to the grip member 10, and the core member 30 is mounted inside the connector 20. The connector 20 is detachably mounted to the front end of the grip member 10, and the core member 30 is press-inserted into the interior of the connector 20.

The inner core member 30 includes a second tube 31 and a scissors 32, the second tube 31 is connected to the scissors 32 at its front end and extends to the holding member 10 at its rear end. The shear body 32 is adapted to shear tissue within a patient.

The scissors body 32 includes a first scissors body 321 and a second scissors body 322, the first scissors body 321 is implemented as a fixed scissors body, and the second scissors body 322 is implemented as a movable scissors body. The first scissors body 321 and the second scissors body 322 are staggered and opposite to each other to complete the cutting operation. The first scissor body 321 is integrally connected to the second tube 31, and the second scissor body 322 is movably connected to the opposite side of the first scissor body 321.

As shown in fig. 8, the scissors 32 further have a suction passage 323B and a pouring passage 324B, an inlet of the suction passage 323B is disposed on the first scissors 321, and the pouring passage 324B is disposed on the second scissors 322. The suction channel 323B is adapted to suck a fluid accumulation of tissue in the patient's body, and the irrigation channel 324B is adapted to irrigate an irrigation fluid.

The first shear body 321 includes a first blade 3213 and a first end surface 3211, and the second shear body 322 includes a second blade 3223 and a second end surface 3221. The first blade edge 3213 and the second blade edge 3223 are configured to have sharp end surfaces, and the first end surface 3211 and the second end surface 3221 are front end surfaces of the first shear body 321 and the second shear body 322, respectively. In particular, the inlet of the suction channel 323B is disposed on the first end surface 3211 of the first shear body 321, and the perfusion channel 324B is disposed on the second end surface 3221 of the second shear body 322.

When the laparoscopic surgical tool performs a cutting operation, the second blade 3223 slides with respect to the first blade 3213. That is, when the second blade 3223 is close to the first blade 3213, cutting is completed. When the laparoscopic surgical tool performs a cutting operation, the suction channel 323B and the irrigation channel 324B also start to operate. Specifically, the irrigation liquid flows from the irrigation passage 324B into the patient, and is then sucked by the suction passage 323B.

It is worth mentioning that the perfusion channel 324B is located at the second end surface 3221, and the suction channel 323B is located at the first end surface 3211. An annular flow is formed between the irrigation passage 324B and the suction passage 323B to cover the front ends of the first and

second blades

3213 and 3223 to act on the cut tissue of the patient. That is, when the rinsing liquid flows through the flow path from the perfusion path 324B to the suction path 323B, the rinsing liquid washes the accumulated liquid between the first blade 3213 and the second blade 3223, so that the field of view of the cut lesion is clearer, which is beneficial for the operation.

Fig. 9 is a partially enlarged view of a laparoscopic surgical tool of a fourth preferred embodiment provided in the present invention. The laparoscopic surgical tool is changed from the above-described embodiment mainly in that the arrangement position of the passage is changed.

The laparoscopic surgical tool includes a grip member 10, a connector 20, and an inner core member 30. The grip member 10, the connector 20 and the inner core member 30 together constitute the laparoscopic surgical tool in three stages. The rear end of the connector 20 is mounted to the grip member 10, and the core member 30 is mounted inside the connector 20. The connector 20 is detachably mounted to the front end of the grip member 10, and the core member 30 is press-inserted into the interior of the connector 20.

The inner core member 30 includes a second tube 31 and a scissors 32, the second tube 31 is connected to the scissors 32 at the front end, and the rear end extends to the grip member 10. The shear body 32 is adapted to shear tissue within a patient.

The scissors body 32 includes a first scissors body 321 and a second scissors body 322, the first scissors body 321 is implemented as a fixed scissors body, and the second scissors body 322 is implemented as a movable scissors body. The first scissors body 321 and the second scissors body 322 are staggered and opposite to each other to complete the cutting operation. The first scissors body 321 is integrally connected to the second tube 31, and the second scissors body 322 is movably connected to an opposite side of the first scissors body 321.

As shown in fig. 9, the scissors 32 further have a suction passage 323C and a pouring passage 324C, an inlet of the suction passage 323B is provided to the first scissors 321, and the pouring passage 324B is also provided to the first scissors 322. The suction channel 323B is adapted to draw a fluid accumulation of tissue in the patient's body, and the irrigation channel 324B is adapted to irrigate an irrigation fluid.

The first blade body 321 includes a first end surface 3211 and a first blade back 3212, the first end surface 3211 is a front end surface of the first blade body 321, and the first blade back 3212 is a blunt surface of the first blade body 321. An inlet of the suction channel 323C is disposed at the first blade back 3212, and the filling channel 324C is disposed at the first end 3211. Thereby, the suction passage 323C and the pouring passage 324C are provided in common to the first scissor body 321. The wash liquid flows from the priming channel 324C to the suction channel 323C. The flow direction of the liquid is agitated during the flowing process, so that the partial tissues sheared by the laparoscopic surgical tool are washed.

Fig. 10 is a partially enlarged view of a laparoscopic surgical tool according to a fifth preferred embodiment of the present invention. The laparoscopic surgical tool is changed from the above-described embodiment mainly in that the arrangement position of the channels is changed.

As shown in fig. 10, the scissors 32 further have a suction channel 323D, an inlet of the suction channel 323D is disposed on the second scissors 322, and the suction channel 323D is adapted to suck the effusion and the perfusion in the body of the patient. That is, the suction passage 323D is implemented as a suction and flushing integration type.

In this embodiment, the suction channel 323D is implemented on the movable second scissor body 322 to movably flush the sheared tissue between the first scissor body 321 and the second scissor body 322. Specifically, the second scissors body 322 is linked to the holding member 10. The operator can change the motion trajectory of the second scissors body 322 by manipulating the holding member 10, and the flushing fluid in the suction channel 323 flows out of the patient in the tissue environment of the patient, and then is agitated and flushed along with the motion trajectory.

Fig. 11 is a partially enlarged view of a laparoscopic surgical tool according to a sixth preferred embodiment of the present invention. The main difference between the laparoscopic surgical tool and the above described embodiment is that the form of the scissors body is changed.

In this embodiment, the core member 30 includes a first tube 31 and a shear body 32. The scissors 32 are located at the front end of the first tube 31. Further, the scissors 32 include a first scissors 321E and a second scissors 322E. The first scissor body 321E is implemented as a movable end and the second scissor body 322E is implemented as a fixed end.

It is worth mentioning that the first blade body 321E includes a first blade back 3212E and a first blade 3213E, and the second blade body 322E includes a second blade back 3222E and a second blade 3223E. The first blade back 3212E and the second blade back 3222E are implemented as blunt surfaces. In a detailed view, the first blade back 3212E and the second blade back 3222E are optionally semicircular in shape when viewed in a plane of the front end surface. In other words, the scissors body 32 is designed as an outer surface of a pincer-like clamp body.

As shown in fig. 11, the first blade 3213E and the second blade 3223E are implemented as sharp end surfaces. Compared with the above embodiment, the arrangement of the first scissors body 321E and the second scissors body 322E is changed from the original staggered up-down relationship to the up-down relationship in the longitudinal relationship. That is, the first blade 3213 is directly above the second blade 3223.

In the process of the laparoscopic surgical tool, the first knife back 3212E and the second knife back 3222E push away the tissues in the body of the patient to form blunt separation; the first blade 3213E and the second blade 3223E abut against each other to shear tissue, forming a sharp separation.

The cutter body 321E further has a suction passage 323E, and an inlet of the suction passage 323E is provided in a front end surface of the first cutter body 321E. Extends backwards from the front end surface of the first scissor body 321E and penetrates through the whole body.

Fig. 12 is a partially enlarged view of a laparoscopic surgical tool of a seventh preferred embodiment provided in the present invention. The main difference between the laparoscopic surgical tool and the above described embodiment is that the material of the scissors body is changed.

In this embodiment, the core member 30 includes a first tube 31 and a shear body 32. The scissors 32 are located at the front end of the first tube 31. Further, the scissors 32 include a first scissors 321F and a second scissors 322F. The first scissor body 321F is embodied as a movable end and the second scissor body 322F is embodied as a fixed end.

The first scissor body 321F and the second scissor body 322F may be implemented by electrocoagulation hemostasis, electrotomy and other surgical methods. That is, the front ends of the first scissor body 321F and the second scissor body 322F may be implemented in a conductive shape. In other words, the rear end of the laparoscopic surgical tool may be extended to the front end to be electrically conductive for performing electrocoagulation, electrotomy, and the like.

As shown in fig. 12, a conductive unit 50F is disposed at the boundary between the first scissors body 321F and the second scissors body 322F. Specifically, the conductive unit 50F is disposed on a first blade 3213F of the first scissor body 321F. When the first cutting edge 3213F is close to the second cutting body 322F, the conductive unit 50F operates to perform electrocoagulation, electrotomy, and the like, thereby separating the tissue of the patient.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. A laparoscopic surgical tool, comprising:

a holding member;

a connector removably connected to an end of the gripping member; and

an inner core member, the inner core member comprises a scissors body and a second tube body, the scissors body is arranged at the front end of the second tube body, the scissors body is arranged at the end part of the connecting piece, wherein the scissors body is provided with a suction channel, the scissors body is suitable for cutting the internal tissues of the patient, the suction channel penetrates from the scissors body to the holding member so as to discharge the internal tissues out of the body, and a clear view of the cutting operation of the scissors body is provided.

2. The laparoscopic surgical tool of claim 1, wherein the scissors body comprises a first scissors body fixedly connected to the second tube and a second scissors body movably connected to the first scissors body, the inlet of the suction channel being disposed at the first scissors body.

3. The laparoscopic surgical tool of claim 2, wherein the first scissor body includes a first end surface and a first blade back, the first end surface being located at a front end of the scissor body, the first blade back being a blunt surface, an inlet of the suction channel being disposed at the first blade back.

4. The laparoscopic surgical tool of claim 2, wherein the first scissor body includes a first end surface and a first blade back, the first end surface being located at a front end of the scissor body, the first blade back being a blunt surface, the inlet of the suction channel being disposed at the first end surface.

5. The laparoscopic surgical tool of claim 4, wherein the scissors body further has an irrigation channel extending through the first blade back, an inlet of the irrigation channel being disposed at the first blade back, the irrigation channel being independent of the suction channel.

6. The laparoscopic surgical tool of claim 4, wherein the second shear body includes a second end face and a second blade back, the second end face and the second blade back being arranged in mirror image to the first end face and the first blade back.

7. The laparoscopic surgical tool of claim 6, wherein the shears further have an irrigation channel, an inlet of the irrigation channel being disposed at the second end face to form a flow of irrigation water between the first and second shears to break up sheared tissue between the first and second shears.

8. The laparoscopic surgical tool of claim 7, wherein the first blade back and the second blade back have rounded surfaces to push tissue apart, the first shear body further comprising a first blade edge, the second shear body further comprising a second blade edge, the first blade edge and the second blade edge having sharpened surfaces, the first blade edge and the second blade edge being oppositely disposed to shear tissue.

9. The laparoscopic surgical tool of any one of claims 1 to 8, wherein the connector includes a connection unit and a first tube, the connection unit being located at a rear end of the first tube, the connector being detachably connected to the grip member through the connection unit.

10. The laparoscopic surgical tool of claim 9, wherein the inner core member further comprises a second tube mounted inside the first tube, the second tube having an inner lumen communicating the front and rear ends of the second tube.

11. The laparoscopic surgical tool of claim 10, wherein the gripping member includes a movable handle and a fixed handle and has a suction port, the movable handle being movably connected to the fixed handle, the suction port being provided in the fixed handle, wherein the suction passage communicates with the suction port to communicate inside and outside of the patient's body.

12. The laparoscopic surgical tool of claim 11, wherein the laparoscopic surgical tool includes a driving member disposed in the lumen, the driving member having a front end connected to the scissors body and a rear end connected to the holding member, wherein the driving member includes a front driving unit connected to the second scissors body, a rear driving unit connected to the movable handle, and a driving link having a front end connected to the front driving unit and a rear end connected to the rear driving unit, the second scissors body being movably close to the first scissors body to perform the cutting when the movable handle is controlled.

13. A laparoscopic surgical tool, comprising:

a gripping member providing gripping by an operator;

a connector extending outwardly from the gripping member; and

the inner core component is detachably connected to the front end of the connecting piece and comprises a shear body, the shear body performs shearing, the shear body comprises a first shear body and a second shear body, the first shear body is fixedly installed relative to the second shear body, the second shear body is movably connected to the first shear body, the shear body is further provided with a suction channel, and the suction channel penetrates through the front end face and the rear end face of the first shear body.

14. The laparoscopic surgical tool of claim 13, wherein said scissors body further has an irrigation channel extending through said front and rear end surfaces of said second scissors body, said suction channel being spaced apart from said irrigation channel.

15. The laparoscopic surgical tool of claim 14, wherein the laparoscopic surgical tool further comprises an electrically conductive unit located at the intersection of the first and second bodies to electrocoagulatively stop bleeding when the bodies are sheared.