Surgical forceps for laparoscopic surgery

Abstract

The present invention relates to the field of medical device technology, and specifically to a surgical forceps for laparoscopic surgery. The surgical forceps comprises a first catheter and a second catheter located within the first catheter. The second catheter is capable of reciprocating along the axis of the first catheter, with a gap formed between the first and second catheters. Flexible, deformable suction assemblies are mounted at the ends of the first and second catheters. A separating forceps is mounted within the second catheter. The separating forceps are capable of reciprocating along the axis of the first catheter, extending to the exterior of the suction assembly or retracting to the interior of the suction assembly. The surgical forceps are convenient for medical personnel to operate, allowing for simple and flexible removal of fluid accumulation and removal of diseased tissue in patients, thereby reducing the risk of damage to the patient's abdominal organs.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a pair of surgical forceps used for laparoscopic surgery. Background Art

[0002] Laparoscopic surgery is a newly developed minimally invasive surgical technique. Compared to traditional surgery, laparoscopic surgery offers advantages such as minimal postoperative scarring and aesthetically pleasing aesthetics. Most common surgical procedures can be performed laparoscopically, including appendectomy, hernia repair, colectomy, ovarian cyst removal, and renal tumor resection.

[0003] Laparoscopic surgery typically requires multiple instruments, but existing laparoscopic instruments are generally simple in structure and single in function. For example, during a separation surgery, to ensure effective operation, it is necessary to aspirate and remove accumulated fluid and mist from the patient's body, while also effectively clamping the diseased tissue. Therefore, multiple sets of instruments are currently required to be used interchangeably and frequently replaced. This not only affects the surgical field of view and is not conducive to the smooth operation of the surgery, but also prolongs the operation time and increases the risk of damage to the patient's abdominal organs, posing a significant risk to clinical surgical operations. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a surgical forceps for laparoscopic surgery, which can be convenient for medical staff to operate, and can simply and flexibly achieve the cleaning of fluid accumulation in the patient's body and the clamping of diseased tissue, thereby reducing the risk of damage to the patient's abdominal organs.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0006] A surgical forceps for laparoscopic surgery, comprising a first catheter and a second catheter located inside the first catheter, wherein the second catheter is capable of reciprocating along the axial direction of the first catheter, and a gap is formed between the first and second catheters, and flexible and deformable suction components are installed at the ends of the first and second catheters;

[0007] The suction assembly includes a flexibly deformable suction portion and an elastic support portion for expanding the suction portion outward, wherein the elastic support portion is disposed in the gap formed between the first conduit and the second conduit on one side of the suction portion and is evenly distributed along the circumference of the second conduit;

[0008] A separation clamp is installed in the second conduit, and the separation clamp can reciprocate along the axial direction of the first conduit so as to be able to extend to the outside of the attraction component or retract into the inside of the attraction component.

[0009] Preferably, the surgical forceps includes multiple groups of the suction components, and the multiple groups of the suction components can be interchangeably connected to the first catheter and the second catheter; wherein, after the elastic support part of each group of the suction components stretches the suction part outward, the maximum diameter S of the suction part is arranged in series.

[0010] Preferably, in an initial state, the cross section of the suction portion is substantially U-shaped, one end of the suction portion is connected to the end of the first conduit, and the other end is connected to the end of the second conduit.

[0011] Preferably, the ends of the first conduit and the second conduit are both provided with a first fixing groove, and the end of the suction part connected to the first conduit and the second conduit is provided with a first pin, and the first pin is inserted into the first fixing groove to connect the suction part to the ends of the first conduit and the second conduit.

[0012] Preferably, the elastic support portion is installed on the outer circumferential surface of the second conduit, and includes a mounting portion, a main body portion and an abutment portion. The mounting portion is provided with a second pin, and the second conduit is provided with a second fixing groove. The second pin is inserted into the second fixing groove to connect the elastic support portion to the outer circumferential surface of the second conduit.

[0013] Preferably, when the elastic support portion is installed in the gap formed between the first conduit and the second conduit, the main body portion has an elastic force radially outward along the first conduit or the second conduit, so that the abutment portion elastically abuts against the inner circumferential wall of the first conduit.

[0014] Preferably, the abutting portion is folded in a clockwise direction to form an arc-shaped flange.

[0015] Preferably, the attraction assembly further includes a first quick-change connector and a second quick-change connector, the cross-section of the attraction portion is roughly U-shaped, one end of which is connected to the end of the first quick-change connector, and the other end is connected to the end of the second quick-change connector, and the elastic support portion is evenly installed on the outer peripheral surface of the second quick-change connector; the first quick-change connector is provided with a first connection portion connected to the first conduit, and the second quick-change connector is provided with a second connection portion connected to the second conduit.

[0016] Preferably, the ends of the first conduit and the second conduit are provided with L-shaped slide grooves, and the tails of the L-shaped slide grooves are provided with arc-shaped grooves. Correspondingly, protrusions are respectively provided on the first connecting part and the second connecting part, and the protrusions can move along the L-shaped slide grooves and cooperate with the arc-shaped grooves.

[0017] Preferably, the first conduit and the second conduit are coaxially arranged, and a guide portion for guiding the second conduit to reciprocate along the axial direction of the first conduit is provided between the first conduit and the second conduit.

[0018] Compared with the prior art, the surgical forceps for laparoscopic surgery provided by the present invention has the following beneficial technical effects:

[0019] 1. The surgical forceps provided by the present invention can simply and conveniently achieve the removal of tumors or diseased tissues, cleaning of the surgical environment, and clamping of tumors or diseased tissues. Medical staff do not need to frequently switch surgical instruments, which shortens the surgical operation time. At the same time, the separation forceps can be stored in the second catheter according to the operation needs, avoiding damage to organs or tissues in the abdominal cavity due to misoperation by medical staff, and reducing safety hazards. In the state of tumor or diseased tissue suction, the elastic support part drives the suction part to expand outward to form a trumpet-shaped opening, thereby improving the suction effect of the suction part on tumors or diseased tissues. Except for the state of tumor or diseased tissue suction, the elastic support part does not drive the suction part to expand outward. At this time, the suction part maintains a smaller radial size, which improves its flexibility during surgery and avoids interference.

[0020] 2. The present invention employs multiple suction assemblies that can be interchangeably connected to the first and second catheters. After the elastic support of each suction assembly expands the suction unit, the maximum diameter S of the suction unit is arranged in a series, thereby improving the adaptability of the suction unit to tumors or lesions of different sizes. During use, medical personnel only need to select the suction assembly of the corresponding size according to surgical needs and install it on one end of the first and second catheters. This improves the adaptability of the surgical forceps and reduces surgical safety risks.

[0021] 3. The present invention facilitates the serial arrangement of the suction assemblies by configuring the suction assembly to include a first quick-change connector and a second quick-change connector, with a first connecting portion and a second connecting portion provided on the first and second quick-change connectors, respectively. By pre-preparing multiple sets of suction assemblies, it is only necessary to select the corresponding suction assembly and connect the first and second connecting portions to the interfaces provided on the first and second conduits, respectively. Since the suction assembly can be quickly installed or replaced, the assembly of the surgical forceps is simplified, thereby improving surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the surgical forceps in the first working state.

[0023] Figure 2 It is a structural schematic diagram of the surgical forceps in the second working state;

[0024] Figure 3 It is a structural schematic diagram of the surgical forceps in the third working state;

[0025] Figure 4 It is a structural diagram of the connection between the suction part and the catheter;

[0026] Figure 5 It is a structural diagram of the connection between the elastic support part and the catheter;

[0027] Figure 6 is a schematic structural diagram of an attraction component in another embodiment;

[0028] Figure 7 It is a partial schematic diagram of the end portion of the first conduit or the second conduit.

[0029] The meanings of the symbols in the figure are as follows:

[0030] 1. First catheter; 2. Second catheter; 3. Separation forceps; 4. Suction unit; 5. Elastic support unit; 6. Guide unit;

[0031] 21. First fixing groove; 22. Second fixing groove; 23. L-shaped sliding groove; 24. Arc-shaped groove;

[0032] 41. First latch; 42. First quick-change connector; 43. First connecting portion; 44. Second quick-change connector; 45. Second connecting portion;

[0033] 51. Mounting portion; 52. Main body; 53. Abutment portion; 54. Second latch. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0035] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0038] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0039] See attached Figure 1 -Attached Figure 7 As shown, the present invention provides a surgical forceps for laparoscopic surgery, which includes a first catheter 1 and a second catheter 2 located inside the first catheter 1. The second catheter 2 can reciprocate along the axial direction of the first catheter 1, and a gap is formed between the first catheter 1 and the second catheter 2. A flexibly deformable suction assembly is installed at the ends of the first catheter 1 and the second catheter 2. The suction assembly includes a flexibly deformable suction portion 4 and an elastic support portion 5 for expanding the suction portion 4 outward. The elastic support portion 5 is arranged in the gap formed between the first catheter 1 and the second catheter 2 near the side of the suction portion 4 and is evenly distributed along the circumference of the second catheter 2. A separation forceps 3 is installed in the second catheter 2. The separation forceps 3 can reciprocate along the axial direction of the first catheter 1, so that it can extend to the outside of the suction assembly or retract to the inside of the suction assembly.

[0040] The surgical forceps provided in the above embodiment has the following three working states:

[0041] 1. Laparoscopic surgery state: The separation forceps 3 are extended to the outside of the suction component, and the medical staff operates the separation forceps 3 to perform laparoscopic surgery to achieve the removal of the tumor or diseased tissue in the abdominal cavity.

[0042] 2. Surgical environment cleaning state: The separation forceps 3 are retracted to the inside of the suction component, and the inside of the second catheter 2 is connected to the external negative pressure device to generate negative pressure in the second catheter 2 to remove bleeding, exudate, pus, etc. during the operation, thereby cleaning the intra-abdominal surgical environment.

[0043] 3. Tumor or diseased tissue suction state: the separation forceps 3 retracts to the inside of the suction component, and the second catheter 2 moves axially along the first catheter 1, so that the suction part 4 and the elastic support part 5 move outward together with the second catheter 2. During the movement, the elastic support part 5 causes the suction part 4 to expand outward, forming a trumpet-shaped opening. After the second catheter 2 is moved into place, the interior of the second catheter 2 is connected to an external negative pressure device to generate negative pressure inside the second catheter 2, and the suction part 4 is used to suck the tumor or diseased tissue removed during the operation, so as to remove the tumor or diseased tissue from the patient's body. It should be noted that in order to ensure that the surgical forceps can effectively suck tumors or diseased tissues, the inner diameter D2 of the second catheter 2 is preferably 1.5-2 times the outer diameter D1 of the separation forceps 3.

[0044] The surgical forceps provided by the present invention can simply and conveniently achieve the removal of tumors or diseased tissues, cleaning of the surgical environment, and clamping of tumors or diseased tissues. Medical personnel do not need to frequently switch surgical instruments, thus shortening the surgical operation time. At the same time, the separation forceps can be stored in the second catheter according to the operation needs, thus avoiding the damage to the organs or tissues in the abdominal cavity caused by the medical personnel's misoperation and reducing the safety risks. In the state of tumor or diseased tissue suction, the elastic support part drives the suction part to expand outward (such as the attached Figure 3 As shown in the figure), a trumpet-shaped opening is formed to enhance the suction effect of the suction part on the tumor or diseased tissue. Except for the state of tumor or diseased tissue suction, the elastic support part does not drive the suction part to expand outward (as shown in the figure). Figure 1 -Attached Figure 2 As shown), the suction part maintains a smaller radial size, which improves its flexibility during surgery and avoids interference.

[0045] During laparoscopic surgery, the size of the tumor or lesion to be removed can vary. To improve the adaptability of the surgical forceps, in the following preferred embodiment, the forceps include multiple sets of suction assemblies that are interchangeably connected to the first and second catheters 1 and 2. After the elastic support portion 5 of each set of suction assemblies propels the suction portion 4 outward, the maximum diameter S of the suction portion 4 is set in a series. For example, the maximum diameter S of each set of suction portions 4 can be set according to an arithmetic progression with a tolerance d, or multiple sets of commonly used sizes can be set according to actual needs. This is not further limited in this embodiment.

[0046] Preferably, the suction part 4 is made of a material that is flexibly deformable and harmless to the human body, such as rubber or latex. In the initial state, the cross-section of the suction part 4 is roughly U-shaped, one end of which is connected to the end of the first conduit 1, and the other end is connected to the end of the second conduit 2. The ends of the first conduit 1 and the second conduit 2 are both provided with a first fixing groove 21, and the connection between the suction part 4 and the first conduit 1 and the second conduit 2 is provided with a first pin 41, which is inserted into the first fixing groove 21 to connect the suction part 4 to the ends of the first conduit 1 and the second conduit 2. The size of the middle part of the first pin 41 is larger than the size of the ends, and it can be inserted into the first fixing groove 21 with interference fit, so that the suction part 4 can be firmly connected to the ends of the first conduit 1 and the second conduit 2. Preferably, the first pin 41 is made of an elastically deformable material.

[0047] Preferably, the elastic support portion 5 is mounted on the outer circumference of the second conduit 2 and includes a mounting portion 51, a main body 52, and an abutting portion 53. The mounting portion 51 is provided with a second latch 54, and the second conduit 2 is provided with a second fixing groove 22. The second latch 54 is inserted into the second fixing groove 22 to connect the elastic support portion 5 to the outer circumference of the second conduit 2. When the elastic support portion 5 is mounted in the gap formed between the first conduit 1 and the second conduit 2, the main body 52 has an elastic force radially outward along the first conduit 1 or the second conduit 2 (as shown in the attached figure). Figure 5 The abutting portion 53 elastically abuts against the inner wall of the first conduit 1. To ensure that the elastic support portion 5 slides smoothly on the inner wall of the first conduit 1, the abutting portion 53 is folded clockwise to form an arc-shaped flange.

[0048] The surgical forceps provided by the above embodiment utilizes multiple suction assemblies that can be interchangeably connected to the first and second catheters. After the elastic support portion of each suction assembly expands the suction portion outward, the maximum diameter S of the suction portion is arranged in a series, thereby improving the adaptability of the suction portion to tumors or lesions of different sizes. During use, medical personnel only need to select the suction assembly of the corresponding size based on surgical needs and install it on one end of the first and second catheters. This improves the adaptability of the surgical forceps and reduces surgical safety risks.

[0049] Preferably, to facilitate quick and easy installation or replacement of the suction assembly, in some embodiments, the suction assembly further includes a first quick-change connector 42 and a second quick-change connector 44. The suction portion 4 has a roughly U-shaped cross-section, with one end connected to the end of the first quick-change connector 42 and the other end connected to the end of the second quick-change connector 44. The elastic support portion 5 is evenly mounted on the outer circumference of the second quick-change connector 44. The first quick-change connector 42 includes a first connection portion 43 for connecting to the first conduit 1, and the second quick-change connector 44 includes a second connection portion 45 for connecting to the second conduit 2. The first connection portion 43 and the second connection portion 45 can be threaded or plugged into the ends of the first and second conduits 1 and 2, respectively. Preferably, an L-shaped groove 23 is provided at the ends of the first and second conduits 1 and 2, with an arcuate groove 24 at the end of the L-shaped groove 23. Correspondingly, elastic projections are provided on the first and second connection portions 43 and 45, respectively, which can move along the L-shaped groove 23 and engage with the arcuate groove 24. During assembly, the protrusions provided on the first and second connecting parts 43, 45, respectively, need only be aligned with the L-shaped groove 23 and moved along the L-shaped groove 23. When the protrusions reach the bottom of the L-shaped groove 23, they are then rotated circumferentially so that the protrusions engage with the arcuate groove 24. The protrusions engage with the arcuate groove 24 to prevent them from moving out of the arcuate groove 24, thereby improving the stability of the connection between the first and second quick-change connectors 42, 44, and the first and second conduits 1, 2.

[0050] In the preferred embodiment described above, the suction assembly is configured to include a first quick-change connector and a second quick-change connector, with the first and second connecting portions provided on the first and second quick-change connectors, respectively, thereby facilitating the installation of the suction assemblies in series. By pre-preparing multiple sets of suction assemblies, when in use, one need only select the corresponding suction assembly and connect the first and second connecting portions to the interfaces provided on the first and second conduits, respectively. This allows for quick installation or replacement of the suction assembly, thereby simplifying the assembly of the surgical forceps and improving surgical efficiency.

[0051] Preferably, the first conduit 1 and the second conduit 2 are coaxially arranged, and a guide portion 6 is provided between the first conduit 1 and the second conduit 2 for guiding the second conduit 2 to reciprocate along the axial direction of the first conduit 1. The guide portion 6 may be a guide ring separately provided between the first conduit 1 and the second conduit 2, or other embodiments may be adopted. Those skilled in the art may select the embodiment according to actual needs, and detailed description is omitted here.

[0052] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A surgical forceps for laparoscopic surgery, characterized in that: The device comprises a first conduit and a second conduit located inside the first conduit, wherein the second conduit is capable of reciprocating along the axial direction of the first conduit, and a gap is formed between the first conduit and the second conduit, and a flexibly deformable suction component is installed at the ends of the first conduit and the second conduit; The suction assembly includes a flexibly deformable suction portion and an elastic support portion for expanding the suction portion outward, wherein the elastic support portion is disposed in the gap formed between the first conduit and the second conduit on one side of the suction portion and is evenly distributed along the circumference of the second conduit; The elastic support portion includes a mounting portion, a main portion, and an abutting portion. The abutting portion is folded clockwise to form an arc-shaped flange. When the elastic support portion is installed in the gap formed between the first conduit and the second conduit, the main portion has an elastic force radially outward along the first conduit or the second conduit. A separation clamp is installed in the second conduit, and the separation clamp can reciprocate along the axial direction of the first conduit so as to be able to extend to the outside of the suction component or retract into the inside of the suction component; The surgical forceps includes multiple groups of the suction components, which can be interchangeably connected to the first catheter and the second catheter; wherein, after the elastic support part of each group of the suction components expands the suction part outward, the maximum diameter S of the suction part is arranged in series; wherein, the inner circumference diameter D2 of the second catheter is 1.5 to 2 times the outer circumference diameter D1 of the separation forceps.

2. The surgical forceps according to claim 1, wherein: In an initial state, the cross section of the suction portion is substantially U-shaped, one end of the suction portion is connected to the end of the first conduit, and the other end is connected to the end of the second conduit.

3. The surgical forceps according to claim 2, wherein: The ends of the first and second conduits are both provided with a first fixing groove, and the ends of the suction part connected to the first and second conduits are provided with a first pin, which is inserted into the first fixing groove to connect the suction part to the ends of the first and second conduits.

4. The surgical forceps according to claim 3, wherein: The elastic support portion is mounted on the outer circumferential surface of the second conduit. A second latch is provided on the mounting portion. The second conduit is provided with a second fixing groove. The second latch is inserted into the second fixing groove to connect the elastic support portion to the outer circumferential surface of the second conduit.

5. The surgical forceps according to claim 1, wherein: The attraction assembly also includes a first quick-change connector and a second quick-change connector. The cross-section of the attraction portion is roughly U-shaped, one end of which is connected to the end of the first quick-change connector, and the other end is connected to the end of the second quick-change connector. The elastic support portion is evenly installed on the outer peripheral surface of the second quick-change connector; the first quick-change connector is provided with a first connection portion connected to the first conduit, and the second quick-change connector is provided with a second connection portion connected to the second conduit.

6. The surgical forceps according to claim 5, characterized in that: The ends of the first and second conduits are provided with L-shaped slide grooves, and the tails of the L-shaped slide grooves are provided with arc-shaped grooves. Correspondingly, protrusions are provided on the first connecting part and the second connecting part respectively, and the protrusions can move along the L-shaped slide grooves and cooperate with the arc-shaped grooves.

7. The surgical forceps according to any one of claims 1 to 6, characterized in that: The first conduit and the second conduit are coaxially arranged, and a guide portion for guiding the second conduit to reciprocate along the axial direction of the first conduit is arranged between the first conduit and the second conduit.

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