Multifunctional hemostatic forceps for laparoscopic surgery

Abstract

The invention relates to the technical field of medical instruments, and discloses a pair of multifunctional hemostatic forceps for laparoscopic surgery, which comprises a handheld operating mechanism and a hemostatic piece, the handheld operating mechanism comprises a handle, an exploring tube is fixedly mounted at the end part of the handle, and a center rod is fixedly mounted in one end, far away from the handle, of the exploring tube; an annular cavity is formed by the surface of the center rod and the inner wall of the exploring tube, an expansion ring is fixedly installed at the end of the center rod, and a pushing assembly is arranged in the exploring tube. According to the haemostatic forceps, the haemostatic part with the elastic clamping function is arranged, the haemostatic part can be temporarily stored in the probe tube, the pushing assembly is used for pushing the haemostatic part out of the probe tube, under the action of the expansion ring, the two clamping plates are opened, the two clamping plates can be conveniently clamped on the surface of a blood vessel, the clamping haemostatic effect is achieved, and due to the design, the haemostatic part is small in size and convenient to use. After the hemostasis piece is installed, the probe tube can be taken out, operation is convenient and fast, and different requirements of laparoscopic surgeries are met.

Description

Technical Field

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

[0002] In the operating room, hemostatic forceps is one of the most common instruments. Its main function is to help doctors control bleeding during surgery and ensure a clear surgical field of view. In the prior art, the announcement number is CN113456160B, which discloses a multifunctional hemostatic forceps for laparoscopic surgery, including a handheld part, a hemostatic part, a shielding sleeve, a rotating assembly, a connecting assembly and a negative pressure suction assembly. The connecting assembly includes an inner sleeve rod and an outer sleeve. The inner sleeve rod is slidably arranged in the outer sleeve, one end of the outer sleeve is fixedly connected to the handheld part, the hemostatic part is arranged at the other end of the outer sleeve, the shielding sleeve is slidably arranged on the hemostatic part, and the shielding sleeve is connected to one end of the inner sleeve rod, the rotating assembly is arranged inside the handheld part, and the other end of the inner sleeve rod is connected to the rotating assembly, and the negative pressure suction assembly is arranged on the outer sleeve; the hemostatic part is used to stop bleeding for the patient when the patient undergoes laparoscopic surgery, and the shielding sleeve is used to shield the hemostatic part to prevent the hemostatic part from causing exposure of the laparoscope, affecting the image transmitted by the laparoscope, and thus affecting the surgery.

[0003] The above-mentioned hemostatic forceps are suitable for situations with smaller amounts of bleeding. When the amount of bleeding is large, a hemostatic forceps with a clamping function is needed to clamp the bleeding blood vessels to stop bleeding. Conventional surgery only requires the use of hemostatic forceps to clamp the bleeding area. However, laparoscopic surgery is a minimally invasive surgery, and ordinary hemostatic forceps are generally large in size, which makes it inconvenient to place them from the puncture hole to the bleeding site, and this problem needs to be solved urgently. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that ordinary hemostatic forceps are generally large in size, not suitable for hemostasis in laparoscopic minimally invasive surgery, and inconvenient to place from the puncture hole to the bleeding site, and to propose a multifunctional hemostatic forceps for laparoscopic surgery.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a multifunctional hemostatic forceps for laparoscopic surgery, including a handheld operating mechanism and a hemostatic component, the handheld operating mechanism including a handle, a probe tube fixedly installed at the end of the handle, a center rod fixedly installed inside the end of the probe tube away from the handle, the surface of the center rod and the inner wall of the probe tube form an annular cavity, an expansion ring fixedly installed at the end of the center rod, and a pushing assembly is provided inside the probe tube.

[0006] The hemostatic piece comprises an elastic ring, an opening is formed on the surface of the elastic ring, and two clamps are fixedly mounted on the opening of the elastic ring. Under the action of the elastic ring, the two clamps are moved closer to each other.

[0007] The elastic ring slides along the surface of the center rod and is placed in the annular cavity. The hemostatic piece is pushed out of the annular cavity by the pushing assembly. When the elastic ring is slidably sleeved on the surface of the expansion ring, the two splints separate from each other. When the elastic ring falls off from the surface of the expansion ring, the two splints approach each other, so that the hemostatic piece is clamped on the bleeding site to stop bleeding. With this design, the hemostatic piece is small in size and can be conveniently placed into the abdominal cavity from the puncture hole. After the hemostatic piece is installed, the probe can be removed, and the operation is convenient, meeting the different needs of laparoscopic surgery.

[0008] Preferably, a linear guide groove is provided on the inner wall of the probe tube, and the two splints can slide along the inner wall of the guide groove. The opposite surfaces of the two splints are fixedly installed with a first support pin and a second support pin. When the two splints are close to each other and clamped, the two first support pins and the two second support pins contact each other, so that a clamping gap is reserved between the two splints, and the tissue at the bleeding site is placed in the clamping gap to reduce compression damage to the tissue.

[0009] Preferably, the ends of the two splints are fixedly installed with connecting plates, and the surfaces of the connecting plates are provided with snap-in holes. The first support pin is inserted into the snap-in holes to connect multiple hemostatic parts in series. There are multiple hemostatic parts, and the multiple hemostatic parts are divided into different models of hemostatic parts. The opposite surfaces of the two splints are provided with clamping grooves. Different models of hemostatic parts refer to different sizes of clamping grooves. During use, the hemostatic part with the appropriate size of the clamping groove can be selected according to the size of the bleeding area.

[0010] Preferably, a wedge block is fixedly mounted on the inner bottom wall of the guide groove, and the front and rear side surfaces of the wedge block are provided with a clearance groove, and the opposing surfaces of the two first support pins are provided with a first slope, and the opposing surfaces of the two second support pins are provided with a second slope;

[0011] When the two clamping plates slide along the inner wall of the guide groove, the wedge block pushes the two clamping plates to separate from each other, and the first supporting pin and the second supporting pin pass through the clearance groove.

[0012] The distance between the two clamps of the hemostatic piece clamped on the surface of the blood vessel is L1. At this time, the two connecting pieces are in the L1 state;

[0013] The distance between the two clamping plates of the hemostatic piece clamped on the surface of the wedge block is L2. At this time, the two first support pins are in the L2 state;

[0014] The distance between the two clamping plates of the hemostatic member clamped on the surface of the expansion ring is L3. At this time, the two first support pins are in the L3 state;

[0015] Among them, L1<L2<L3;

[0016] The hemostatic piece is pulled into the probe tube by the transmission plate, and the hemostatic piece is separated from the expansion ring. The two first support pins in the L3 state approach each other and switch to the L2 state. At the same time, they can be inserted into the clamping holes of the two connecting pieces in the L1 state. The installed hemostatic piece can be pulled into the probe tube by the transmission plate. In this process, the expansion ring expands the two splints of the hemostatic piece so that the blood vessels are separated from the two splints, thereby realizing the function of removing the hemostatic piece in the abdominal cavity.

[0017] Preferably, the pushing assembly includes a transmission plate, which is slidably arranged in the guide groove, and a connecting port is opened at the end of the transmission plate. Two third support pins are fixedly installed in the connecting port. The third support pin has the same structure as the first support pin, and the third support pin can be inserted into the clamping hole. A servo motor is fixedly installed at the end of the handle, and a button for controlling the forward or reverse rotation of the servo motor is provided on the surface of the handle. A transmission screw is fixedly installed at the rotating end of the servo motor, and a threaded sleeve is fixedly installed at the end of the transmission plate. The transmission screw is threadedly connected to the threaded sleeve. During use, the servo motor rotates forward or reverse, and the transmission screw drives the transmission plate to extend and retract.

[0018] Preferably, a negative pressure tube is fixedly installed on the surface of the probe tube, and an adsorption channel is opened at the end of the central rod. The adsorption channel is connected to the negative pressure tube. Blood or fluid accumulation in the surgical site can be sucked away through the adsorption channel, ensuring a clear surgical field of view and providing a clear field of view for the disassembly and assembly of the hemostatic component.

[0019] The present invention has the following beneficial effects:

[0020] 1. The hemostatic forceps proposed in the present invention are provided with a hemostatic piece with an elastic clamping function. The hemostatic piece can be temporarily stored in the probe tube. The hemostatic piece is pushed out of the probe tube by using a pushing assembly. Under the action of the expansion ring, the two splints are opened, which facilitates the two splints to clamp on the surface of the blood vessel, achieving the effect of clamping and hemostasis. With this design, the hemostatic piece is small in size and can be easily placed into the abdominal cavity through the puncture hole. After the hemostatic piece is installed, the probe tube can be removed, and the operation is convenient, meeting the different needs of laparoscopic surgery.

[0021] 2. The hemostatic forceps proposed in the present invention realizes the series connection of multiple hemostatic parts by arranging a first supporting pin and a connecting piece on the hemostatic part, and the first supporting pin and the connecting piece are clamped together, and the hemostatic parts in series can be temporarily stored in the probe tube. The hemostatic parts in series are pushed out one by one from the probe tube by using a pushing assembly, thereby achieving the effect of placing hemostatic parts in multiple bleeding sites at one time.

[0022] 3. The hemostatic forceps proposed in the present invention disposes a wedge-shaped block within the probe tube. Each pushed-out hemostatic piece slides out from the surface of the wedge-shaped block, and the wedge-shaped block is used to control the spacing between the two clamping plates. Under the combined action of the wedge-shaped block and the expansion ring, the transmission plate drives the hemostatic piece at the mouth of the probe tube to slide left and right, thereby adjusting the spacing between the two clamping plates. The hemostatic piece within the mouth of the probe tube is used to clamp the hemostatic piece already clamped on the surface of the blood vessel. The transmission plate pulls the installed hemostatic piece into the probe tube. During this process, the expansion ring expands the two clamping plates of the hemostatic piece to separate the blood vessel from the two clamping plates, thereby realizing the function of removing the hemostatic piece within the abdominal cavity.

[0023] 4. The hemostatic forceps proposed by the present invention are provided with a center rod, the end of which extends outside the probe tube. When installing or removing the hemostatic device, the end of the center rod is inserted into the inner cavity of the elastic ring. The center rod serves as a guide, making operation more convenient.

[0024] By setting an adsorption channel at the end of the central rod, the air in the negative pressure tube is sucked away, and the blood or fluid in the surgical site can be sucked away through the adsorption channel, ensuring a clear surgical field of view and providing a clear field of view for the disassembly and assembly of the hemostatic parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the hemostatic forceps proposed by the present invention;

[0026] Figure 2 This is a schematic structural diagram of the hemostatic forceps proposed by the present invention in a disassembled state;

[0027] Figure 3 This is a schematic diagram of the partially cutaway three-dimensional structure of the hemostatic forceps proposed by the present invention;

[0028] Figure 4 for Figure 1 A schematic diagram of the structure enlargement at point A;

[0029] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point B in FIG.

[0030] Figure 6 This is a schematic diagram of the three-dimensional structure of the hemostatic device proposed in the present invention;

[0031] Figure 7 This is a bottom view schematic diagram of the hemostatic device proposed in the present invention;

[0032] Figure 8 This is a schematic diagram of the side view of the probe tube proposed by the present invention. Figure 1 ;

[0033] Figure 9 This is a schematic diagram of the side view of the probe tube proposed by the present invention. Figure 2 ;

[0034] Figure 10 This is a side structural schematic diagram of the hemostatic device proposed in the present invention.

[0035] In the figure: 1 hemostatic element, 2 handle, 3 probe, 4 center rod, 5 expansion ring, 6 elastic ring, 7 splint, 8 guide groove, 9 first support pin, 10 second support pin, 11 connecting piece, 12 snap-fit ​​hole, 13 clamping groove, 14 wedge block, 15 clearance groove, 16 first slope, 17 second slope, 18 transmission plate, 19 third support pin, 20 servo motor, 21 transmission screw, 22 threaded sleeve, 23 negative pressure tube, 24 adsorption channel, 25 blood vessel. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying 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 should not be understood as limiting the present invention.

[0038] Reference Figures 1-10 A multifunctional hemostatic forceps for laparoscopic surgery includes a handheld operating mechanism and a hemostatic component 1. The handheld operating mechanism includes a handle 2, a probe tube 3 is fixedly installed at the end of the handle 2, a center rod 4 is fixedly installed in the end of the probe tube 3 away from the handle 2, the surface of the center rod 4 and the inner wall of the probe tube 3 form an annular cavity, an expansion ring 5 is fixedly installed at the end of the center rod 4, and a pushing component is provided inside the probe tube 3.

[0039] like Figure 6 、 Figure 10 As shown, the hemostatic device 1 includes an elastic ring 6 with an opening on its surface. Two clamping plates 7 are fixedly mounted on the opening of the elastic ring 6. Under the action of the elastic ring 6, the two clamping plates 7 are moved closer to each other.

[0040] The elastic ring 6 slides along the surface of the center rod 4 and is placed in the annular cavity. The inner wall of the probe tube 3 is provided with a linear guide groove 8. Figure 8 、 Figure 9 As shown, the two clamping plates 7 can slide along the inner wall of the guide groove 8, and the opposite surfaces of the two clamping plates 7 are fixedly mounted with a first supporting pin 9 and a second supporting pin 10, as shown in FIG. Figure 7As shown, when the two clamping plates 7 are clamped close to each other, the two first supporting pins 9 and the two second supporting pins 10 contact each other, so that a clamping gap is reserved between the two clamping plates 7.

[0041] The hemostatic element 1 is pushed out of the annular cavity by the pushing assembly. When the elastic ring 6 is slidably sleeved on the surface of the expansion ring 5, because the outer diameter of the expansion ring 5 is larger than the inner diameter of the elastic ring 6, the elastic ring 6 is stretched open, so that the two splints 7 are separated from each other. When the elastic ring 6 falls off from the surface of the expansion ring 5, the two splints 7 are moved closer to each other under the action of the elastic ring 6. Figure 10 .

[0042] For details, see Figure 2 、 Figure 3 The pushing assembly includes a transmission plate 18, which is slidably arranged in the guide groove 8. A connection port is opened at the end of the transmission plate 18, and two third support pins 19 are fixedly installed in the connection port. The third support pin 19 has the same structure as the first support pin 9. Figure 3 As shown, the third support pin 19 can be inserted into the clamping hole 12 to achieve the clamping installation of the hemostatic element 1 on the end of the transmission plate 18 .

[0043] A servo motor 20 is fixedly mounted on the end of the handle 2, and a button for controlling the forward or reverse rotation of the servo motor 20 is provided on the surface of the handle 2. A transmission screw 21 is fixedly mounted on the rotating end of the servo motor 20, and a threaded sleeve 22 is fixedly mounted on the end of the transmission plate 18. The transmission screw 21 is threadedly connected to the threaded sleeve 22. During use, the servo motor 20 rotates forward or reverse, and the transmission screw 21 drives the transmission plate 18 to extend and retract, thereby pushing the hemostatic element 1 out of the end of the probe 3, so that the hemostatic element 1 is clamped on the surface of the blood vessel 25, achieving the purpose of clamping and stopping bleeding. Figure 4 .

[0044] The hemostatic forceps proposed in the present invention are provided with a hemostatic piece 1 with an elastic clamping function. The hemostatic piece 1 can be temporarily stored in the probe tube 3. The hemostatic piece 1 is pushed out of the probe tube 3 by using a pushing assembly. Under the action of the expansion ring 5, the two splints 7 are opened, which facilitates the two splints 7 to clamp on the surface of the blood vessel 25, thereby achieving the effect of clamping and hemostasis. With this design, the hemostatic piece 1 is small in size and can be conveniently placed into the abdominal cavity through the puncture hole. After the hemostatic piece 1 is installed, the probe tube 3 can be removed from the abdominal cavity, which is easy to operate and meets the different needs of laparoscopic surgery.

[0045] In this embodiment, there are multiple hemostatic members 1, which are divided into different types of hemostatic members 1. The opposite surfaces of the two splints 7 are provided with clamping grooves 13, such as Figure 6 As shown, different types of hemostatic pieces 1 have different sizes of the clamping grooves 13 . During use, the hemostatic piece 1 with the appropriate size of the clamping groove 13 can be selected according to the size of the bleeding area.

[0046] like Figure 2 、 Figure 6 As shown, a connecting piece 11 is fixedly installed at the end of each of the two splints 7. A snap-fit ​​hole 12 is provided on the surface of the connecting piece 11. The first supporting pin 9 is inserted into the snap-fit ​​hole 12 to connect multiple hemostatic members 1 in series.

[0047] refer to Figure 4 When the hemostatic piece 1 is clamped on the surface of the blood vessel 25, the two splints 7 here are in a clamped state. The hemostatic piece 1 located in the probe tube 3 is expanded by the expansion ring 5. The distance between the two expanded splints 7 is greater than the distance between the two splints 7 in the clamped state. Therefore, the hemostatic piece 1 in the clamped state can be automatically separated from the hemostatic piece 1 in the probe tube 3.

[0048] By arranging a first support pin 9 and a connecting piece 11 on the hemostatic piece 1, and by the clamping of the first support pin 9 and the connecting piece 11, a plurality of hemostatic pieces 1 can be connected in series, and the hemostatic pieces 1 in series can be temporarily stored in the probe tube 3. The pushing assembly is used to push the hemostatic pieces 1 in series out of the probe tube 3 one by one, thereby achieving the effect of placing the hemostatic pieces 1 in multiple bleeding sites at one time.

[0049] In this embodiment, Figure 5 As shown, a wedge block 14 is fixedly installed on the inner bottom wall of the guide groove 8, and a clearance groove 15 is provided on the front and rear side surfaces of the wedge block 14. The opposite surfaces of the two first support pins 9 are provided with a first slope 16, and the opposite surfaces of the two second support pins 10 are provided with a second slope 17. Figure 7 , both ends of the wedge block 14 are pointed, and the tips of both ends of the wedge block 14 are in sliding contact with the first slope 16 or the second slope 17, which can open the splints 7 on both sides;

[0050] When the two clamping plates 7 slide along the inner wall of the guide groove 8 , the wedge block 14 pushes the two clamping plates 7 to separate from each other, and the first supporting pin 9 and the second supporting pin 10 pass through the clearance groove 15 .

[0051] Specifically, such as Figure 1 As shown, the distance between the two clamps 7 of the hemostatic member 1 clamped on the surface of the blood vessel 25 is L1. At this time, the two connecting pieces 11 are in the L1 state. The L1 state specifically refers to the size of the distance between the two connecting pieces 11.

[0052] like Figure 7 As shown, the distance between the two clamping plates 7 of the hemostatic member 1 clamped on the surface of the wedge block 14 is L2. At this time, the two first support pins 9 are in the L2 state, and the L2 state specifically refers to the size of the distance between the two first support pins 9;

[0053] like Figure 10As shown, the distance between the two clamping plates 7 of the hemostatic member 1 clamped on the surface of the expansion ring 5 is L3. At this time, the two first support pins 9 are in the L3 state, and the L3 state specifically refers to the size of the distance between the two first support pins 9;

[0054] Among them, L1<L2<L3; because the distance between the two clamping plates 7 increases or decreases, the distance between the two opposite first supporting pins 9 and the two opposite connecting pieces 11 also increases or decreases accordingly.

[0055] refer to Figure 4 The hemostatic member 1 in the L2 state is pushed outward by the transmission plate 18 and is stretched open by the expansion ring 5, so that the hemostatic member 1 switches to the L3 state. The hemostatic member 1 is pulled into the probe 3 by the transmission plate 18, and the hemostatic member 1 is separated from the expansion ring 5. The two first support pins 9 in the L3 state approach each other and switch to the L2 state, and can be inserted into the clamping holes 12 of the two connecting pieces 11 in the L1 state. That is to say, Figure 4 As shown, the hemostatic member 1 located in the probe 3 is clamped on the outside of the hemostatic member 1 in a clamped state, thereby realizing the clamping connection of the two hemostatic members 1 in series.

[0056] Only when the hemostatic component 1 is pushed outward by the transmission plate 18 and stretched open by the expansion ring 5, the two first support pins 9 are in the L3 state. Since L3 is greater than L1, the two first support pins 9 in the L3 state will be separated from the connecting piece 11 of the hemostatic component 1 in the clamped state. The mutual clamping and series connection of the hemostatic components 1 and the mutual separation of the hemostatic components 1 can be achieved by controlling the telescopic action of the transmission plate 18, which is very convenient to operate.

[0057] The transmission plate 18 is used to pull the outer hemostatic piece 1 into the probe 3. Since the expansion ring 5 can expand the hemostatic piece 1, the distance between the two splints 7 is increased, and the blood vessel 25 is separated from the two splints 7, thereby realizing the removal of the hemostatic piece 1 in the abdominal cavity. It should be noted that before using the hemostatic forceps, the hemostatic piece 1 needs to be loaded into the probe 3, and the transmission plate 18 is also used to pull the outer hemostatic piece 1 into the probe 3. However, this is performed outside the abdominal cavity and is relatively simple, so it will not be elaborated here.

[0058] The hemostatic forceps proposed in the present invention arranges a wedge block 14 in the probe tube 3, and each pushed out hemostatic piece 1 slides out from the surface of the wedge block 14. The wedge block 14 is used to control the distance between the two splints 7. Under the joint action of the wedge block 14 and the expansion ring 5, the transmission plate 18 drives the hemostatic piece 1 at the mouth of the probe tube 3 to slide left and right, and the distance between the two splints 7 can be adjusted. The hemostatic piece 1 in the mouth of the probe tube 3 is clamped on the surface of the blood vessel 25. The installed hemostatic piece 1 can be tractioned by the transmission plate 18 to slide into the probe tube 3. In this process, the expansion ring 5 expands the two splints 7 of the hemostatic piece 1 so that the blood vessel 25 is separated from the two splints 7, thereby realizing the function of removing the hemostatic piece 1 in the abdominal cavity.

[0059] In this embodiment, a negative pressure tube 23 is fixedly installed on the surface of the probe 3, and an adsorption channel 24 is opened at the end of the center rod 4. The adsorption channel 24 is connected to the negative pressure tube 23. By setting the center rod 4, the end of the center rod 4 extends to the outside of the probe 3. When installing or removing the hemostatic component 1, the end of the center rod 4 is inserted into the inner cavity of the elastic ring 6. The center rod 4 plays a guiding role, making the operation more convenient; by setting the adsorption channel 24 at the end of the center rod 4, the air in the negative pressure tube 23 is sucked away, and the blood or fluid in the surgical site can be sucked away through the adsorption channel 24, ensuring a clear surgical field of view, and also providing a clear field of view for the disassembly and assembly of the hemostatic component 1.

[0060] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A multifunctional hemostatic forceps for laparoscopic surgery, comprising a handheld operating mechanism and a hemostatic element (1), characterized in that: The handheld operating mechanism comprises a handle (2), a probe (3) is fixedly mounted on the end of the handle (2), a center rod (4) is fixedly mounted inside the end of the probe (3) away from the handle (2), the surface of the center rod (4) and the inner wall of the probe (3) form an annular cavity, an expansion ring (5) is fixedly mounted on the end of the center rod (4), and a pushing assembly is provided inside the probe (3); The hemostatic device (1) comprises an elastic ring (6), an opening portion is formed on the surface of the elastic ring (6), and two clamping plates (7) are fixedly mounted on the opening portion of the elastic ring (6). Under the action of the elastic ring (6), the two clamping plates (7) are brought closer to each other. The elastic ring (6) slides along the surface of the central rod (4) and is placed in the annular cavity. The hemostatic element (1) is pushed out of the annular cavity by a pushing assembly. When the elastic ring (6) is slidably mounted on the surface of the expansion ring (5), the two splints (7) are separated from each other. When the elastic ring (6) falls off from the surface of the expansion ring (5), the two splints (7) are brought closer to each other.

2. The multifunctional hemostatic forceps for laparoscopic surgery according to claim 1, characterized in that: The inner wall of the probe (3) is provided with a linear guide groove (8), and the two clamping plates (7) can slide along the inner wall of the guide groove (8). The opposite surfaces of the two clamping plates (7) are fixedly installed with a first support pin (9) and a second support pin (10). When the two clamping plates (7) are clamped close to each other, the two first support pins (9) and the two second support pins (10) contact each other, so that a clamping gap is reserved between the two clamping plates (7).

3. The multifunctional hemostatic forceps for laparoscopic surgery according to claim 2, characterized in that: The ends of the two splints (7) are fixedly mounted with connecting pieces (11), and a clamping hole (12) is provided on the surface of the connecting piece (11). The first support pin (9) is inserted into the clamping hole (12) to connect the multiple hemostatic pieces (1) in series.

4. The multifunctional hemostatic forceps for laparoscopic surgery according to claim 3, characterized in that: There are multiple hemostatic pieces (1), and the multiple hemostatic pieces (1) are divided into different models of hemostatic pieces (1). The opposite surfaces of the two splints (7) are both provided with clamping grooves (13). The different models of hemostatic pieces (1) refer to the different sizes of the clamping grooves (13).

5. The multifunctional hemostatic forceps for laparoscopic surgery according to claim 4, characterized in that: A wedge block (14) is fixedly mounted on the inner bottom wall of the guide groove (8), and a clearance groove (15) is provided on the front and rear side surfaces of the wedge block (14). The opposing surfaces of the two first support pins (9) are provided with a first slope (16), and the opposing surfaces of the two second support pins (10) are provided with a second slope (17). When the two clamping plates (7) slide along the inner wall of the guide groove (8), the wedge block (14) pushes the two clamping plates (7) to separate from each other, and the first supporting pin (9) and the second supporting pin (10) pass through the said clearance groove (15).

6. The multifunctional hemostatic forceps for laparoscopic surgery according to claim 5, characterized in that: The pushing assembly includes a transmission plate (18), which is slidably arranged in the guide groove (8). A connecting port is opened at the end of the transmission plate (18), and two third supporting pins (19) are fixedly installed in the connecting port. The third supporting pin (19) has the same structure as the first supporting pin (9), and the third supporting pin (19) can be inserted into the clamping hole (12).

7. The multifunctional hemostatic forceps for laparoscopic surgery according to claim 6, characterized in that: A servo motor (20) is fixedly mounted on the end of the handle (2), a button for controlling the forward or reverse rotation of the servo motor (20) is provided on the surface of the handle (2), a transmission screw (21) is fixedly mounted on the rotating end of the servo motor (20), a threaded sleeve (22) is fixedly mounted on the end of the transmission plate (18), and the transmission screw (21) is threadedly connected to the threaded sleeve (22).

8. The multifunctional hemostatic forceps for laparoscopic surgery according to claim 7, characterized in that: The distance between the two clamps (7) of the hemostatic member (1) clamped on the surface of the blood vessel (25) is L1, and at this time, the two connecting pieces (11) are in the L1 state; The distance between the two clamping plates (7) of the hemostatic member (1) clamped on the surface of the wedge block (14) is L2, and at this time, the two first support pins (9) are in the L2 state; The distance between the two clamping plates (7) of the hemostatic member (1) clamped on the surface of the expansion ring (5) is L3, and at this time, the two first support pins (9) are in the L3 state; Among them, L1<L2<L3; The hemostatic component (1) is pulled into the probe (3) by the transmission plate (18), and the hemostatic component (1) is separated from the expansion ring (5). The two first support pins (9) in the L3 state approach each other and switch to the L2 state. At the same time, the two first support pins (9) in the L1 state can be inserted into the clamping holes (12) of the two connecting pieces (11).

9. The multifunctional hemostatic forceps for laparoscopic surgery according to claim 8, characterized in that: A negative pressure tube (23) is fixedly mounted on the surface of the probe tube (3), and an adsorption channel (24) is provided at the end of the central rod (4), and the adsorption channel (24) is communicated with the negative pressure tube (23).

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