Multifunctional laparoscopic surgical instrument

Abstract

The present invention relates to a multifunctional laparoscopic surgical instrument, comprising: a suction tube, wherein the suction tube has a head and a tail along an extension direction, a fixed forceps arm fixedly connected to the head of the suction tube, a movable forceps arm connected to the fixed forceps arm, a transmission handle fixed at the tail of the suction tube for controlling the movable forceps arm, and a transmission rod parallel to the suction tube, wherein the transmission handle controls the opening and closing of the movable forceps arm through the transmission rod, and the movable forceps arm and the fixed forceps arm are arranged on the suction tube, with high integration and single-handed operation possible, and the operator only needs to open or close the movable forceps arm through the transmission handle on the suction tube, which is easy to use and convenient for switching the clamping function of the movable forceps arm and the fixed forceps arm and the suction function of the suction tube at any time, thereby improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a surgical instrument. Background Art

[0002] In thoracoscopic minimally invasive surgery, especially single-port thoracoscopic surgery, the incision is only 3-4 cm, and the first assistant holding the suction device in a small space can easily interfere with the surgeon. Therefore, the current thoracoscopic minimally invasive surgery basically requires the surgeon to use the suction device in his left hand to clean the bleeding in the surgical field and assist in exposing the surgical field, and use the scalpel in his right hand to dissect the tissue structure. The first assistant is only responsible for pulling the lung tissue to assist in exposing the surgical field. This makes it difficult to complete some delicate dissections that require the cooperation of non-destructive forceps and scalpels under thoracoscopy, or requires the surgeon to frequently change surgical instruments to complete them, resulting in interruptions in the surgical process and prolonged surgery time.

[0003] Different types of multifunctional thoracic surgical instruments have been published in the prior art, such as a laparoscopic pneumoperitoneum non-destructive suction head device (China, CN105477692A, 2016.4.13), which includes a suction tube, a control valve, a suction sponge ball and a sponge ball controller; a multifunctional suction device for thoracoscopic surgery (China, CN217219685U, 2022.08.19) has been published, including a suction device body and a suction head, wherein the suction device body is a hollow tube with one end connected to a negative pressure soft The tube has an external thread at the other end; a combined laparoscopic surgical instrument (China, CN105125278A, 2015.12.09) is disclosed. A combined head is installed on the shell of the combined laparoscopic surgical instrument. The combined head is a combination of two conventional laparoscopic surgical instrument heads. The combined head consists of a fixed rod and two different movable rods. The switch and handle can control the opening and closing of the movable rods to perform surgical operations, so that one laparoscopic surgical instrument has two functions. Different combined heads can be replaced on the shell. However, the multifunctional combined instrument of the prior art still needs to be replaced during surgery.

[0004] The purpose of the present invention is to provide a multifunctional laparoscopic surgical instrument to solve the technical problems that in existing thoracoscopic minimally invasive surgery, non-destructive forceps, aspirators and scalpels are difficult to coordinate under thoracoscopic surgery, and the surgeon needs to frequently change surgical instruments, resulting in interruption of the surgical process and prolonged operation time. Summary of the invention

[0005] The present invention integrates the suction device and surgical forceps into one instrument, so that the operator can operate the suction device and / or surgical forceps simultaneously with one hand. When the surgical incision is small, the operator does not need to frequently change surgical instruments, thereby solving the technical problems of interruption of the surgical process and prolonged surgical time. Based on this, the present invention is completed.

[0006] The present invention provides a multifunctional laparoscopic surgical instrument, which includes: a suction tube 3, a head 4 and a tail 5 of the suction tube 3 along the extension direction, a fixed forceps arm 2 fixedly connected to the suction tube head 4 and a movable forceps arm 1 movably connected to the fixed forceps arm 2, a transmission rod 10 parallel to the suction tube 3, and a transmission handle 9 fixedly connected to the suction tube tail 5, wherein the transmission handle 9 controls the opening and closing of the movable forceps arm 1 through the transmission rod 10.

[0007] Further, the port 5 of the tail of the suction tube is connected to an external suction device, and the external suction device provides suction power for the suction tube 3. A handheld component 21 is provided at the tail 5 of the suction tube, and the handheld component 21 is easy to hold and has an anti-slip function. Furthermore, a rotating knob 26 is provided at the front end of the handheld component 21, and the rotating knob 26 is used to control the rotation of the suction tube 3, thereby controlling the opening and closing direction of the fixed forceps wall 2 and the movable forceps wall 1. Preferably, the rotating knob 26 is fixedly connected to the suction tube 3, and the suction tube rotates accordingly when the rotating knob 26 is turned. The rotating knob 26 is rotatably connected to the handheld component 21, so as to facilitate the adjustment of the rotation angle of the suction tube 3.

[0008] Furthermore, the suction tube tail 5 can be connected to an external suction device through an interface 20 . Preferably, a handheld component 21 is disposed on the interface 20 .

[0009] Furthermore, the handheld component 21 can be prepared as a gripping type, and the handle of the gripping handheld component forms an angle with the suction tube 3, and the angle is between 90° and 120°.

[0010] Furthermore, the transmission rod 10 can be arranged in the transmission tube 19, that is, the transmission rod 10 passes through the transmission tube 19, the transmission rod 10 is connected to the transmission handle 9 through the transmission plate 11, the transmission handle 9 moves the transmission rod 10 by rotating, and the transmission plate 11 is rotationally connected to the transmission rod 10.

[0011] Furthermore, a fixing seat 14 is sleeved at the tail 5 of the suction tube, a connecting portion 25 is provided on the transmission handle 9, a first shaft hole 15 is provided on the fixing seat 14, a second shaft hole 16 and a third shaft hole 17 are provided on the connecting portion 25, a fourth shaft hole 27 is provided on the transmission plate, a first shaft 12 is passed through the first shaft hole 15 and the second shaft hole 16 to connect the transmission handle 9 with the fixing seat 14, and a second shaft 13 is passed through the third shaft hole 17 and the fourth shaft hole 27 to connect the transmission plate with the transmission handle. A receiving groove 18 is provided on the fixing seat 14, and the transmission plate 11 and the connecting portion 25 are all or partially received in the receiving groove 18.

[0012] Furthermore, a reset member 23 is provided between the transmission handle 9 and the suction tube 3 for resetting the transmission handle 9 after being pressed.

[0013] Further, a movable seat 6 is sleeved on the suction tube head 4, the movable seat 6 is fixedly connected to the transmission rod 10, and a protrusion 7 is provided on the movable seat 6, and a groove 8 matching with the protrusion 7 is provided on the movable forceps arm 1, and the protrusion 7 is embedded in the groove 8. The movable forceps arm 1 is rotatably connected with the fixed forceps arm 2, and the transmission rod 10 is driven to move forward and backward through the transmission handle 9, so that the movable seat 6 slides at the suction tube head 4, thereby controlling the opening and closing of the movable forceps arm 1. Preferably, the occlusal surfaces of the movable forceps arm 1 and the fixed forceps arm 2 can be provided with anti-slip teeth.

[0014] Furthermore, the suction tube 3 and the suction tube head 4 may extend in a straight line or be bent at an angle, and the angle is between 130° and 170°. The suction head of the suction tube head 4 is preferably a duckbill flat round head.

[0015] Compared with the prior art, the multifunctional laparoscopic surgical instrument provided by the present invention has the following technical advantages:

[0016] The multifunctional laparoscopic surgical instrument provided by the present invention can simultaneously provide the functions of an aspirator and surgical forceps in cavity surgeries with smaller incisions. It is easy to use, and the clamping function and suction function of the device can be switched at any time. At the same time, it makes the surgical operation simpler, faster, and safer, avoids the phenomenon of multiple instruments occupying the surgical space, and allows one person to complete the work of two people, thereby reducing the number of surgical operators and improving work efficiency.

[0017] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a multifunctional laparoscopic surgical aspirator provided by an embodiment of the present invention;

[0019] Figure 2 An exploded view of a multifunctional laparoscopic surgical aspirator provided by an embodiment of the present invention;

[0020] Figure 3 The embodiment of the present invention provides Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 The embodiment of the present invention provides Figure 2 Enlarged view of point B in the middle.

[0022] Figure 5 A schematic diagram of the holding structure of a multifunctional laparoscopic surgical aspirator provided in an embodiment of the present invention.

[0023] Icons: 1-movable forceps arm; 2-fixed forceps arm; 3-suction tube; 4-head; 5-tail; 6-movable seat; 7-protrusion; 8-groove; 9-transmission handle; 10-transmission rod; 11-transmission plate; 12-first axis; 13-second axis; 14-fixed seat; 15-first axis hole; 16-second axis hole; 17-third axis hole; 18-accommodating groove; 19-transmission tube; 20-external interface; 21-handheld part; 22-anti-slip tooth pattern; 23-reset part; 24-middle part; 25-connecting part; 26-rotating knob; 27-fourth axis hole; 28-holding handle. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0029] Example 1: Figures 1 to 4 shown.

[0030] The present embodiment provides a multifunctional laparoscopic surgical aspirator, comprising: a suction tube 3, a head 4 and a tail 5 of the suction tube 3 along the extension direction, a fixed forceps arm 2 fixedly connected to the suction tube head 4, and a movable forceps arm 1 rotatably connected to the fixed forceps arm 2, wherein the movable forceps arm 1 and the fixed forceps arm 2 form a clamping forceps, i.e., a surgical forceps;

[0031] The transmission rod 10 parallel to the suction tube 3 is fixedly connected to the transmission handle 9 at the tail 5 of the suction tube. The transmission handle 9 controls the opening and closing of the movable forceps arm 1 through the transmission rod 10. The transmission rod 10 is arranged in the transmission tube 19, that is, the transmission rod 10 passes through the transmission tube 19. The transmission tube 19 effectively protects the transmission rod 10 to prevent external influences on its movement and improve stability. The transmission rod 10 is connected to the transmission handle 9 through a transmission sheet 11. The transmission handle 9 moves the transmission rod 10 by rotating. The transmission sheet 11 is rotationally connected to the transmission rod 10;

[0032] The end 5 of the suction tube is connected to an external suction device through an interface 20, and the external suction device provides suction power for the suction tube 3. A handheld component 21 is arranged on the interface 20, and the handheld component 21 is easy to hold and has an anti-slip function;

[0033] A fixing seat 14 is sleeved on the tail portion 5 of the suction tube, a connecting portion 25 is arranged on the transmission handle 9, a first axial hole 15 is provided on the fixing seat 14, a second axial hole 16 and a third axial hole 17 are provided on the connecting portion 25, a fourth axial hole 27 is provided on the transmission plate, the first shaft 12 is passed through the first axial hole 15 and the second axial hole 16 to enable the connecting portion 25 to be hinged with the fixing seat 14, that is, the transmission handle 9 is rotatably connected to the suction tube 3; one end of the transmission plate 11 is hinged with the rear end of the transmission rod 10, and the other end is passed through the third axial hole 17 and the fourth axial hole 27 through the second shaft 13 to achieve hinge connection with the connecting portion 25. The transmission handle 9 rotates toward the suction tube 3, and the connection part 25 drives the transmission sheet 11 to rotate toward the transmission rod 10 through the second shaft 13, so that the angle between the transmission sheet 11 and the transmission rod 10 becomes smaller, so that the transmission sheet 11 drives the transmission rod 10 to move backward, and then drives the movable seat 6 to slide backward; the transmission handle 9 rotates away from the suction tube 3, and the connection part 25 drives the transmission sheet 11 to rotate away from the transmission rod 10 through the second shaft 13, so that the angle between the transmission sheet 11 and the transmission rod 10 becomes larger, so that the transmission sheet 11 drives the transmission rod 10 to move forward, and then drives the movable seat 6 to slide forward. The overall structural design is ingenious, the structure is simple, the connection is convenient, the drive is stable, and jamming is avoided.

[0034] The fixing seat 14 is provided with a receiving groove 18, and the rear end of the transmission rod 10 is located in the receiving groove 18. When the transmission handle 9 rotates toward the suction tube 3, the connecting portion 25 and the transmission plate 11 can all enter the receiving groove 18, so that the transmission handle 9 can be parallel to the suction tube 3; when the transmission handle 9 rotates away from the suction tube 3, the connecting portion 25 and the transmission plate 11 can partially extend out of the receiving groove 18, and a larger angle is opened between the transmission handle 9 and the gripping handle 28. A reset member 23 is provided between the transmission handle 9 and the suction tube 3, which is used to reset the transmission handle 9 after being pressed. The reset member 23 can be a reset spring or a spring, preferably a spring, and one end of the spring is connected to the transmission handle 9, and the other end is connected to the hand-held component 21, with a simple structure and a good reset effect.

[0035] A movable seat 6 is sleeved on the suction tube head 4, the movable seat 6 is fixedly connected to the transmission rod 10, and a protrusion 7 is arranged on the movable seat 6, and a groove 8 matching with the protrusion 7 is arranged on the movable forceps arm 1, the protrusion 7 is embedded in the groove 8, and the transmission rod 10 is driven to move forward and backward by the transmission handle 9, so that the movable seat 6 slides at the suction tube head 4, and then the movable forceps arm 1 is controlled to open and close. When the movable seat 6 slides forward relative to the suction tube 3, the protrusion 7 pushes the front groove wall of the groove 8 to open the movable forceps arm 1, and when the movable seat 6 slides backward relative to the suction tube 3, the protrusion 7 pushes the rear groove wall of the groove 8 to close the movable forceps arm 1. The movable forceps arm 1 is driven to rotate by the sliding of the movable seat 6, which is stable and convenient. The end of the protrusion 7 is provided with a first arc surface, and the inner wall of the groove 8 is provided with a second arc surface matching with the first arc surface. The first arc surface is in close contact with the second arc surface, and is a rotational match, so the driving effect is better and stable, and jamming is avoided.

[0036] The occlusal surfaces of the movable forceps arm 1 and the fixed forceps arm 2 are provided with anti-slip teeth. The clamping forceps are in a closed state when not in use. The suction tube 3 and the suction tube head 4 are bent at an angle of 150°. The suction head of the suction tube head 4 is a duckbill flat round head.

[0037] The front end of the clamping forceps is flush with the front end of the suction tube 3, which is convenient for switching the functions of the clamping forceps and the suction tube 3 while avoiding mutual interference. The rear end of the fixed forceps arm 2 is provided with a hinge seat, and the rear end of the movable forceps arm 1 is provided with a relative hinge part. The hinge seat is arranged between the relative hinge parts and is hinged through a hinge shaft connection, that is, a rotational connection between the movable forceps arm 1 and the fixed forceps arm 2 is realized.

[0038] In this embodiment, preferably, the transmission tube 19 and the suction tube 3 are integrally formed, and the fixed forceps arm 2 and the head 4 of the suction tube 3 are integrally formed, so that the structure is stable and easy to manufacture, while reducing the size of the multifunctional instrument.

[0039] Example 2: Figure 1-5 Shown

[0040] This embodiment provides another multifunctional laparoscopic surgical aspirator, comprising: a suction tube 3, a head 4 and a tail 5 of the suction tube 3 along the extension direction, a fixed forceps arm 2 fixedly connected to the suction tube head 4, and a movable forceps arm 1 rotatably connected to the fixed forceps arm 2, wherein the movable forceps arm 1 and the fixed forceps arm 2 form a clamping forceps, i.e., a surgical forceps;

[0041] The transmission rod 10 parallel to the suction tube 3 is fixedly connected to the transmission handle 9 at the tail 5 of the suction tube. The transmission handle 9 controls the opening and closing of the movable forceps arm 1 through the transmission rod 10. The transmission rod 10 is arranged in the transmission tube 19, that is, the transmission rod 10 passes through the transmission tube 19. The transmission tube 19 effectively protects the transmission rod 10 to prevent external influences on its movement and improve stability. The transmission rod 10 is connected to the transmission handle 9 through a transmission sheet 11. The transmission handle 9 moves the transmission rod 10 by rotating. The transmission sheet 11 is rotationally connected to the transmission rod 10;

[0042] The port 5 at the tail of the suction tube is connected to an external suction device through an interface 20, and the external suction device provides suction power for the suction tube 3. A handheld component 21 is arranged on the interface 20, and the handheld component 21 is a gripping type. An angle is formed between the handle 28 of the gripping handheld component and the suction tube 3, and the angle is 105°. A rotating knob 26 is arranged at the front end of the handheld component 21, and the rotating knob 26 is used to control the rotation of the suction tube 3. The handheld component 21 is easy to hold and has an anti-slip function.

[0043] A fixing seat 14 is sleeved at the tail 5 of the suction tube, a connecting portion 25 is provided on the transmission handle 9, a first shaft hole 15 is provided on the fixing seat 14, a second shaft hole 16 and a third shaft hole 17 are provided on the connecting portion 25, a fourth shaft hole 27 is provided on the transmission sheet, a first shaft 12 is passed through the first shaft hole 15 and the second shaft hole 16, the transmission handle 9 is connected to the fixing seat 14, a second shaft 13 is passed through the third shaft hole 17 and the fourth shaft hole 27, the transmission sheet is connected to the transmission handle. A receiving groove 18 is provided on the fixing seat 14, the transmission sheet 11 and the connecting portion 25 are received in the receiving groove 18.

[0044] A movable seat 6 is sleeved on the suction tube head 4, the movable seat 6 is fixedly connected to the transmission rod 10, and a protrusion 7 is arranged on the movable seat 6, and a groove 8 matching with the protrusion 7 is arranged on the movable forceps arm 1, the protrusion 7 is embedded in the groove 8, and the transmission rod 10 is driven to move forward and backward by the transmission handle 9, so that the movable seat 6 slides at the suction tube head 4, and then the movable forceps arm 1 is controlled to open and close. When the movable seat 6 slides forward relative to the suction tube 3, the protrusion 7 pushes the front groove wall of the groove 8 to open the movable forceps arm 1, and when the movable seat 6 slides backward relative to the suction tube 3, the protrusion 7 pushes the rear groove wall of the groove 8 to close the movable forceps arm 1. The movable forceps arm 1 is driven to rotate by the sliding of the movable seat 6, which is stable and convenient. The end of the protrusion 7 is provided with a first arc surface, and the inner wall of the groove 8 is provided with a second arc surface matching with the first arc surface. The first arc surface is in close contact with the second arc surface, and is a rotational match, so the driving effect is better and stable, and jamming is avoided.

[0045] The occlusal surfaces of the movable forceps arm 1 and the fixed forceps arm 2 are provided with anti-slip teeth. The clamping forceps are in a closed state when not in use, and the suction tube 3 and the suction tube head 4 are connected in a straight line.

[0046] The front end of the clamping forceps is flush with the front end of the suction tube 3, which is convenient for switching the functions of the clamping forceps and the suction tube 3 while avoiding mutual interference. The rear end of the fixed forceps arm 2 is provided with a hinge seat, and the rear end of the movable forceps arm 1 is provided with a relative hinge part. The hinge seat is arranged between the relative hinge parts and is hinged through a hinge shaft connection, that is, a rotational connection between the movable forceps arm 1 and the fixed forceps arm 2 is realized.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional laparoscopic surgical instrument, characterized in that: The device comprises: a suction tube (3), a head and a tail (5) of the suction tube (3) along an extension direction, a fixed forceps arm (2) fixedly connected to the suction tube head (4), and a movable forceps arm (1) movably connected to the fixed forceps arm (2), a transmission rod (10) parallel to the suction tube (3), and a transmission handle (9) fixedly connected to the suction tube tail (5), wherein the transmission handle (9) controls the opening and closing of the movable forceps arm (1) through the transmission rod (10); the transmission rod (10) is connected to the transmission handle (9) through a transmission sheet (11), the transmission handle (9) moves the transmission rod (10) by rotation, and the transmission sheet (11) is rotatably connected to the transmission rod (10); a fixed seat (14) is sleeved at the suction tube tail (5), a connecting portion (25) is arranged on the transmission handle (9), the fixed seat (14) is provided with a first axial hole (15), and the connecting portion (25) is provided on the fixed seat (14), The first shaft (12) is passed through the first shaft hole (15) and the second shaft hole (16) to connect the transmission handle (9) with the fixed seat (14); the second shaft (13) is passed through the third shaft hole (17) and the fourth shaft hole (27) to connect the transmission plate (11) with the transmission handle (9); the suction tube head (4) is provided with a movable seat (6), the movable seat (6) is fixedly connected to the transmission rod (10), the movable seat (6) is provided with a protrusion (7), the movable forceps arm (1) is provided with a groove (8) matching with the protrusion (7), the protrusion (7) is embedded in the groove (8), and the movable seat (6) drives the movable forceps arm (1) to rotate by sliding the protrusion (7) through the groove (8).

2. The multifunctional laparoscopic surgical instrument according to claim 1, characterized in that: A hand-held component (21) is provided at the tail portion (5) of the suction tube, and the hand-held component (21) is provided with anti-slip patterns.

3. The multifunctional laparoscopic surgical instrument according to claim 2, characterized in that: A rotating knob (26) is arranged at the front end of the handheld component (21), and the rotating knob (26) is used to control the rotation of the suction tube (3), thereby controlling the opening and closing direction of the fixed forceps arm (2) and the movable forceps arm (1).

4. The multifunctional laparoscopic surgical instrument according to claim 1, characterized in that: The transmission rod (10) is arranged in the transmission tube (19), that is, the transmission rod (10) passes through the transmission tube (19).

5. The multifunctional laparoscopic surgical instrument according to claim 1, characterized in that: The fixing seat (14) is provided with a receiving groove (18), and the transmission sheet (11) and the connecting portion (25) are fully or partially received in the receiving groove (18).

6. The multifunctional laparoscopic surgical instrument according to claim 1, characterized in that: A reset member (23) is provided between the transmission handle (9) and the suction tube (3) and is used for resetting the transmission handle (9) after being pressed.

7. The multifunctional laparoscopic surgical instrument according to claim 1, characterized in that: Anti-slip tooth patterns are arranged on the occlusal surfaces of the movable tweezer arm (1) and the fixed tweezer arm (2).

Images