Trocar with hemostasis device

Abstract

The trocar with the hemostasis device comprises a needle head portion, a trocar body, a trocar handle portion, a trocar handle portion, a trocar handle portion, a trocar handle portion, a trocar handle portion and a trocar handle portion, a blood channel is formed in the catheter, and one end of the catheter is connected with the connector; the heparin cap is connected to the other end of the catheter; the hemostasis device comprises a first clamping piece and a second clamping piece, and an adjusting hole is formed between the first clamping piece and the second clamping piece; when the first clamping piece and the second clamping piece move oppositely, the area of the adjusting hole is reduced to extrude the catheter to close the blood channel. The catheter is extruded through the opposite movement of the first clamping piece and the second clamping piece, so that a blood channel is closed, medical staff do not need to keep the bent state of the hose with continuous force, the workload of the medical staff is relieved, and the risk of blood leakage is reduced; after the first clamping piece and the second clamping piece are clamped, medical staff can freely conduct connection operation on components such as a heparin cap and an infusion apparatus with two hands, the problem that a hose is reset does not need to be worried any more, and therefore operation convenience and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hemodialysis equipment, in particular to a trocar with a hemostatic device. Background Art

[0002] In the field of hemodialysis (HD), cannulas are critical medical tools widely used to establish and maintain the extracorporeal circulation path between blood and the dialysis machine. After successful puncture, traditional trocars for HD often bend the flexible tube to temporarily block blood flow, preventing blood from spurting out before connecting a heparin cap, infusion pump, or other medical device. However, this method of operation has significant limitations and inconveniences.

[0003] First, the method of bending the hose to close the blood channel relies on manual operation by medical staff, and continuous force is required to keep the hose bent. This not only increases the workload of medical staff, but may also cause the hose to reset due to fatigue or distraction, thereby posing the risk of blood leakage.

[0004] Secondly, connecting components such as the heparin cap and infusion set while the hose is bent is extremely inconvenient. Requiring one hand to hold the hose bent while the other performs the connection, this one-handed operation significantly reduces flexibility and efficiency, while also increasing the risk of connection errors or device detachment. Utility Model Content

[0005] In order to overcome at least one of the above-mentioned drawbacks of the prior art, the present invention provides a trocar with a hemostatic device, which can solve the problem of hemostasis in a soft tube, simplify the operation process, reduce the workload of medical staff, and improve the safety and efficiency of hemodialysis treatment.

[0006] The technical solution adopted by the present invention to solve the problem is:

[0007] A trocar with a hemostatic device comprises: a needle head, one end of which is provided with a needle tube, and the other end of which is provided with a connector connected to the needle tube; a catheter, a blood channel formed in the catheter, one end of the catheter being connected to the connector; a heparin cap, the heparin cap being connected to the other end of the catheter; and a hemostatic device, the hemostatic device comprising a first clamp and a second clamp, an adjustment hole for the catheter to pass through being formed between the first clamp and the second clamp; when the first clamp and the second clamp move toward each other and engage, the area of ​​the adjustment hole decreases, thereby squeezing the catheter to close the blood channel.

[0008] By adopting the above solution, the catheter is squeezed by the opposite movement of the first clamp and the second clamp to achieve closure of the blood channel, without the need for medical staff to continuously exert force to keep the hose in a bent state, thereby reducing the workload of medical staff and the risk of blood leakage; when the first clamp and the second clamp are locked, the medical staff can freely use both hands to perform connection operations of components such as the heparin cap and the infusion set, without having to worry about the problem of resetting the hose, thereby improving the convenience and efficiency of the operation.

[0009] Furthermore, the first clamping member is provided with a clamping claw facing the second clamping member, the clamping claw has a clamping claw opening facing the second clamping member, an inwardly concave arc-shaped clamping groove is formed in the clamping claw opening, and the second clamping member is provided with an arc-shaped protrusion facing the first clamping member, and the arc-shaped clamping groove is correspondingly engaged with the arc-shaped protrusion.

[0010] By adopting the above solution, the arc-shaped slot design is not only convenient for matching with the arc-shaped protrusion on the second clamping part, but also can provide a certain elastic buffer during clamping, reducing wear or damage caused by hard contact; and the arc-shaped protrusion can be accurately embedded in the arc-shaped slot of the first clamping part claw to form a stable clamping structure.

[0011] Furthermore, the adjustment hole is located in the center of the arc-shaped protrusion, and an insertion groove perpendicular to the axis of the adjustment hole is provided on the arc-shaped protrusion. An insertion plate corresponding to the insertion groove is provided in the arc-shaped slot. When the insertion plate is inserted into the insertion slot, the area of ​​the adjustment hole gradually shrinks.

[0012] With this solution, when the first and second clamps move toward each other, the insert plate slides along the arc-shaped slot and gradually inserts into the insertion slot. During this process, the insert plate occupies a portion of the space previously occupied by the adjustment hole, causing the area of ​​the adjustment hole to gradually decrease. This change in area directly affects the catheter passing through the adjustment hole, subjecting it to increasing pressure. When the insert plate is fully inserted into the insertion slot, the area of ​​the adjustment hole reaches its minimum, fully squeezing the catheter and completely closing the blood channel. This closure method is fast and effective, quickly preventing blood from flowing out.

[0013] Furthermore, an outwardly protruding arcuate edge is provided on one end of the inserting plate facing the adjusting hole, and the conduit is located between the arcuate edge and the edge of the adjusting hole.

[0014] By adopting the above solution, the arcuate edge can provide a smooth transition surface when the insert plate is inserted into the insertion groove, reducing friction and wear between the insert plate and the catheter; at the same time, when the insert plate is fully inserted, it can form a close contact surface with the edge of the adjustment hole, which helps to enhance the sealing of the hemostatic device.

[0015] Furthermore, the first clamping member includes a first pressing plate connected to the first clamping member, the second clamping member includes a second pressing plate connected to the second clamping member, and the first pressing plate and the second pressing plate are arranged in parallel.

[0016] By adopting the above solution, medical staff can complete the clamping effect of the first clamping member and the second clamping member by pressing with the thumb and index finger, thereby improving the convenience and efficiency of operation. At the same time, due to the parallel relationship between the first pressing plate and the second pressing plate, medical staff can more easily maintain uniform force.

[0017] Furthermore, a connecting piece is provided between the first pressing plate and the second pressing plate, and the connecting piece is used to keep the first pressing plate and the second pressing plate connected to each other when the first clamping piece and the second clamping piece are not clamped.

[0018] By adopting the above solution, the entire hemostatic device is more stable during carrying and initial positioning, and is not easy to be lost or scattered. By connecting the two pressing plates together through the connecting piece, medical staff can operate the entire hemostatic device more conveniently and improve the pressing stability.

[0019] Furthermore, the length of the claw opening is smaller than the width of the arc-shaped protrusion, and the claw has an elastic deformation force so that when the claw of the first clamping member slides toward each other along the edge of the arc-shaped protrusion of the second clamping member, the arc-shaped protrusion can be clamped into the arc-shaped slot from the claw opening.

[0020] By adopting the above solution, it is ensured that when the claw of the first clamping member attempts to slide toward each other along the edge of the arc-shaped protrusion of the second clamping member, the claw cannot directly pass through the arc-shaped protrusion, but needs to undergo a certain deformation to adapt to the width of the arc-shaped protrusion. Therefore, the stability of the clamping can be improved, ensuring that the hemostatic device will not accidentally loosen or shift during use.

[0021] Furthermore, the claw has a first reset force to elastically deform into the arc-shaped slot, and the conduit has a second reset force when squeezed by the arc-shaped edge and the edge of the adjustment hole, and the first reset force is greater than the second reset force.

[0022] This solution ensures that when the claw engages the arcuate slot, it overcomes the secondary restoring force generated by the squeezed catheter, maintaining the stability and effectiveness of the hemostatic device. It also ensures that the hemostatic device is securely fastened during engagement, preventing loosening or leakage caused by the catheter's reaction force. This design improves the safety and reliability of the hemostatic device and ensures smooth hemodialysis procedures.

[0023] Furthermore, the connector is provided with a needle wing.

[0024] By adopting the above solution, the design of the needle wing makes the needle more stable when inserted into the blood vessel or tissue, reducing the deviation or shaking caused by hand shaking or other factors, thereby improving the success rate and safety of puncture; by holding the needle wing, the direction and depth of the needle can be better controlled to ensure the accuracy of the puncture process.

[0025] Furthermore, anti-slip grooves are provided on both sides of the needle wing.

[0026] By adopting the above solution, the friction between the medical staff's hands and the needle wings is increased, so that the hands can hold the needle wings more stably when puncturing, fixing or adjusting the needle position, reducing operational errors or patient discomfort caused by hand slippage, and improving work efficiency and puncture success rate.

[0027] In summary, the trocar with hemostasis device provided by the present invention has the following technical effects:

[0028] 1. By providing a trocar with a hemostatic device, the first and second clamps are automatically engaged to squeeze the catheter, closing the blood channel without the need for medical staff to exert continuous force, thereby greatly reducing the workload of medical staff;

[0029] 2. Manual bending of the hose can easily cause the hose to reposition due to fatigue or distraction, leading to the risk of blood leakage. However, the hemostatic device of the present invention can stably maintain the squeeze state of the catheter after being clamped, ensuring the effective closure of the blood channel, thereby significantly reducing the risk of blood leakage;

[0030] 3. After the hemostatic device is connected, medical staff can use both hands freely to remove the heparin cap and connect components such as the infusion set, without having to worry about resetting the hose. This not only improves the convenience of operation, but also speeds up the connection and improves treatment efficiency.

[0031] 4. The design of the hemostatic device ensures the stability of the catheter in the clamped state, reducing potential risks caused by improper operation or device dislocation. At the same time, the timely closure of the blood channel also avoids unnecessary blood waste and patient discomfort, thereby enhancing the safety of the overall treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of a trocar according to an embodiment of the present utility model;

[0033] Figure 2 This is a schematic structural diagram of a trocar with a hemostatic device according to an embodiment of the present utility model;

[0034] Figure 3 This is a schematic structural diagram of a hemostatic device according to an embodiment of the present utility model;

[0035] Figure 4 This is a schematic diagram of the exploded structure of the hemostatic device according to an embodiment of the present invention.

[0036] Among them, the meanings of the figure marks are as follows: 1. needle head; 11. needle tube; 12. connector; 2. catheter; 3. heparin cap; 4. hemostatic device; 41. first clamping part; 411. claw; 412. claw opening; 413. arc-shaped slot; 414. insert plate; 415. arc-shaped edge; 42. second clamping part; 421. arc-shaped protrusion; 422. insertion slot; 43. adjustment hole; 44. first pressing plate; 45. second pressing plate; 5. connector; 6. needle wing; 61. anti-slip pattern. DETAILED DESCRIPTION

[0037] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] In order to facilitate the understanding of the embodiments of the present invention, the following will be further explained with reference to specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0041] Example 1 of the present utility model is shown in FIG. Figures 1-4As shown, a trocar with a hemostatic device 4 is disclosed, comprising a needle head 1, a catheter 2, a heparin cap 3, and the hemostatic device 4. The needle head 1 is provided with a needle tube 11 at one end and a connector 12 connected to the needle tube 11 at the other end. The needle tube 11 is made of a soft silicone tube, which is soft and elastic, allowing it to bend with the shape of the blood vessel to reduce damage to the vessel wall. The connector 12 is made of a hard plastic material and serves as a fixing device. A blood channel is formed within the catheter 2, one end of which is connected to the connector 12. The catheter 2 is the main part of the trocar and is made of a soft plastic or silicone material. After successful puncture, it is retained in the blood vessel and serves as a channel for blood to enter and exit. The heparin cap 3 is connected to the other end of the catheter 2 to seal and protect the flexible tube portion retained in the blood vessel. The front end of the heparin cap 3 is a hard plastic connector for easy connection to an infusion set or other medical equipment; the rear end is sealed with a rubber cap, which contains a pipe connected to the needle head and can hold heparin solution. The hemostatic device 4 includes a first clamp 41 and a second clamp 42, and an adjustment hole 43 for the catheter 2 to pass through is formed between the first clamp 41 and the second clamp 42; when the first clamp 41 and the second clamp 42 move toward each other and engage, the area of ​​the adjustment hole 43 is reduced to squeeze the catheter 2 to close the blood channel. The catheter 2 is squeezed by the relative movement of the first clamp 41 and the second clamp 42 to achieve the closure of the blood channel, and there is no need for medical staff to continuously exert force to keep the hose in a bent state, thereby reducing the workload of medical staff and reducing the risk of blood leakage; when the first clamp 41 and the second clamp 42 are engaged, medical staff can freely use both hands to perform connection operations of components such as the heparin cap 3 and the infusion set, without having to worry about the problem of resetting the hose, thereby improving the convenience and efficiency of operation.

[0042] In a specific embodiment, the first clamping member 41 is provided with a clamping claw 411 facing the second clamping member 42, the clamping claw 411 has a clamping claw opening 412 facing the second clamping member 42, and an inwardly concave arc-shaped clamping groove 413 is formed in the clamping claw opening 412. The second clamping member 42 is provided with an arc-shaped protrusion 421 facing the first clamping member 41, and the arc-shaped clamping groove 413 is correspondingly engaged with the arc-shaped protrusion 421. The design of the arc-shaped clamping groove 413 is not only convenient for matching with the arc-shaped protrusion 421 on the second clamping member 42, but also provides a certain elastic buffer during the clamping, thereby reducing wear or damage caused by hard contact; and the arc-shaped protrusion 421 is provided with an inwardly concave arc-shaped clamping groove 413. The block 421 can be accurately embedded in the arc-shaped slot 413 of the claw 411 of the first clamping member 41 to form a stable clamping structure; the adjusting hole 43 is located in the center of the arc-shaped protrusion 421, and the arc-shaped protrusion 421 is provided with an insertion slot 422 perpendicular to the axis of the adjusting hole 43, and the arc-shaped slot 413 is provided with an insertion plate 414 corresponding to the insertion slot 422. When the insertion plate 414 is inserted into the insertion slot 422, the area of ​​the adjusting hole 43 gradually decreases. When the first clamping member 41 and the second clamping member 42 move toward each other, the insertion plate 414 will slide along with the arc-shaped slot 413 and gradually insert into the insertion slot 422. During this process, the insert plate 414 occupies a portion of the space originally occupied by the regulating hole 43, causing the area of ​​the regulating hole 43 to gradually decrease. This change in area directly acts on the catheter 2 passing through the regulating hole 43, subjecting it to increasing squeezing pressure. When the insert plate 414 is fully inserted into the insertion slot 422, the area of ​​the regulating hole 43 reaches its minimum, at which point the catheter 2 is fully squeezed, and the blood channel is completely closed. This closure method is fast and effective, and can quickly prevent blood from flowing out.

[0043] In order to improve the blood blocking property when the catheter 2 is squeezed, optionally, an outwardly protruding arcuate edge 415 is provided at one end of the insert plate 414 facing the adjustment hole 43, and the catheter 2 is located between the arcuate edge 415 and the edge of the adjustment hole 43. The arcuate edge 415 can provide a smooth transition surface during the process of inserting the insert plate 414 into the insertion groove 422, thereby reducing friction and wear between the insert plate 414 and the catheter 2; at the same time, when the insert plate 414 is fully inserted, a close contact surface can be formed with the edge of the adjustment hole 43, which helps to enhance the sealing property of the hemostatic device 4.

[0044] In this embodiment 1, the first clamping member 41 includes a first pressing plate 44 connected to the first clamping member 41, and the second clamping member 42 includes a second pressing plate 45 connected to the second clamping member 42. The first pressing plate 44 and the second pressing plate 45 are arranged in parallel, which is convenient for medical staff to complete the clamping effect of the first clamping member 41 and the second clamping member 42 by pressing with the thumb and index finger, thereby improving the convenience and efficiency of operation. At the same time, due to the parallel relationship between the first pressing plate 44 and the second pressing plate 45, medical staff can more easily maintain uniform force.

[0045] In order to improve the integrity of the first clamping member 41 and the second clamping member 42 and prevent the parts from being scattered and lost, in some embodiments, a connecting member 5 is provided between the first pressing plate 44 and the second pressing plate 45. The connecting member 5 is used to maintain the mutual connection between the first pressing plate 44 and the second pressing plate 45 when the first clamping member 41 and the second clamping member 42 are not clamped, so that the entire hemostatic device 4 is more stable during carrying and initial positioning, and is not easily lost or scattered. By connecting the two pressing plates together through the connecting member 5, medical personnel can more conveniently operate the entire hemostatic device 4, and improve the pressing stability. In this embodiment 1, preferably, the connecting member 5 is a spring, and the two ends of the spring are fixedly connected to the first pressing plate 44 and the second pressing plate 45, including but not limited to embedded connection, welding or clamping. In other embodiments, the connecting member 5 can also be a sleeved guide tube and guide rod, with blocks provided at the ends to prevent them from separating, and the guide tube and guide rod can slide toward each other without affecting the clamping connection between the first clamping member 41 and the second clamping member 42.

[0046] It should be noted that in this embodiment 1, there are two connecting members 5, which are located on both sides of the clamping claw 411. When pressing the first clamping member 41 and the second clamping member 42, the connecting member 5 made of spring material can provide a stable supporting force for the first pressing plate 44 and the second pressing plate 45, thereby ensuring the clamping stability of the first clamping member 41 and the second clamping member 42.

[0047] In some embodiments, the length of the claw opening 412 is smaller than the width of the arc-shaped protrusion 421, and the claw 411 has an elastic deformation force, so that when the claw 411 of the first clamping member 41 slides toward each other along the edge of the arc-shaped protrusion 421 of the second clamping member 42, the arc-shaped protrusion 421 can be clamped into the arc-shaped slot 413 from the claw opening 412, ensuring that when the claw 411 of the first clamping member 41 tries to slide toward each other along the edge of the arc-shaped protrusion 421 of the second clamping member 42, the claw 411 cannot directly pass through the arc-shaped protrusion 421, but needs to undergo a certain deformation to adapt to the width of the arc-shaped protrusion 421, thereby improving the stability of the clamping. The design is qualitative, ensuring that the hemostatic device 4 will not accidentally loosen or shift during use; the claw 411 has a first reset force that elastically deforms into the arc-shaped slot 413, and the catheter 2 has a second reset force when squeezed by the arc-shaped edge 415 and the edge of the adjustment hole 43, and the first reset force is greater than the second reset force. This ensures that when the claw 411 is engaged with the arc-shaped slot 413, it can overcome the second reset force generated when the catheter 2 is squeezed, thereby maintaining the stability and effectiveness of the hemostatic device 4. At the same time, it ensures that the hemostatic device 4 can be firmly fixed together during the engagement process and prevents loosening or leakage caused by the reaction force of the catheter 2. This design improves the safety and reliability of the hemostatic device 4 and ensures the smooth progress of the hemodialysis process.

[0048] In some embodiments, optionally, a needle wing 6 is provided on the connector 12. The design of the needle wing 6 makes the needle more stable when inserted into a blood vessel or tissue, reduces the deviation or shaking caused by hand shaking or other factors, thereby improving the success rate and safety of the puncture; by holding the needle wing 6, the direction and depth of the needle can be better controlled to ensure the accuracy of the puncture process. In this embodiment 1, anti-slip grooves 61 are provided on both sides of the needle wing 6. This arrangement increases the friction between the medical staff's hands and the needle wing 6, so that when puncturing, fixing or adjusting the needle position, the hand can hold the needle wing 6 more stably, reducing operational errors or patient discomfort caused by hand slippage, and improving work efficiency and the success rate of puncture.

[0049] During use, check the integrity of the trocar and its hemostatic device 4 to ensure that there is no damage or contamination. At the same time, prepare other necessary medical equipment such as the heparin cap 3 and the infusion set. According to the specific situation of the patient, select a suitable vein for puncture. After seeing the blood return, continue to push the trocar forward in parallel with the direction of the blood vessel wall, and at the same time withdraw the metal inner core so that the cannula completely enters the blood vessel. At this time, press the hemostatic device 4 with one hand to engage the first clamping member 41 and the second clamping member 42. At this time, the blood channel is closed, and the medical staff can freely connect the heparin cap 3, the infusion set and other components with both hands. When the blood channel needs to be closed, it is only necessary to stretch the claws 411 to both sides. At this time, the first clamping member 41 and the second clamping member 42 can be disengaged by pulling the first pressing plate 44 and the second pressing plate 45.

[0050] In summary, the trocar with hemostatic device 4 provided by the present invention has the following technical effects:

[0051] 1. By providing a trocar with a hemostatic device 4, the first clamping member 41 and the second clamping member 42 are automatically engaged to squeeze the catheter 2, thereby closing the blood channel. This eliminates the need for medical staff to exert continuous force, thereby greatly reducing their workload.

[0052] 2. Manual bending of the hose can easily cause the hose to reposition due to fatigue or distraction, leading to the risk of blood leakage. However, the hemostatic device 4 of the present invention can stably maintain the squeezing state of the catheter 2 after being clamped, ensuring the effective closure of the blood channel, thereby significantly reducing the risk of blood leakage;

[0053] 3. After the hemostatic device 4 is connected, medical staff can use both hands to remove the heparin cap 3 and connect components such as the infusion set without having to worry about resetting the hose. This not only improves the convenience of operation, but also speeds up the connection and improves treatment efficiency.

[0054] 4. The design of the hemostatic device 4 ensures the stability of the catheter 2 when it is engaged, reducing potential risks caused by improper operation or device dislodgement. Furthermore, the timely closure of the blood channel avoids unnecessary blood waste and patient discomfort, thereby enhancing the safety of the overall treatment process.

[0055] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A trocar with a hemostatic device (4), characterized in that: include: A needle head (1), wherein one end of the needle head (1) is provided with a needle tube (11), and the other end is provided with a connector (12) connected to the needle tube (11); A catheter (2), wherein a blood channel is formed in the catheter (2), and one end of the catheter (2) is connected to a connector (12); a heparin cap (3), the heparin cap (3) being connected to the other end of the catheter (2); A hemostatic device (4), the hemostatic device (4) comprising a first clamping member (41) and a second clamping member (42), an adjustment hole (43) for the catheter (2) to pass through being formed between the first clamping member (41) and the second clamping member (42); When the first clamping member (41) and the second clamping member (42) move toward each other and engage, the area of ​​the regulating hole (43) decreases to squeeze the catheter (2) and close the blood channel.

2. A trocar with a hemostatic device (4) according to claim 1, characterized in that: The first clamping member (41) is provided with a clamping claw (411) facing the second clamping member (42), the clamping claw (411) has a clamping claw opening (412) facing the second clamping member (42), an inwardly concave arc-shaped clamping groove (413) is formed in the clamping claw opening (412), and the second clamping member (42) is provided with an arc-shaped protrusion (421) facing the first clamping member (41), and the arc-shaped clamping groove (413) is correspondingly clamped with the arc-shaped protrusion (421).

3. A trocar with a hemostatic device (4) according to claim 2, characterized in that: The adjusting hole (43) is located at the center of the arc-shaped protrusion (421); an insertion groove (422) perpendicular to the axis of the adjusting hole (43) is provided on the arc-shaped protrusion (421); an inserting plate (414) corresponding to the inserting groove (422) is provided in the arc-shaped slot (413); when the inserting plate (414) is inserted into the inserting groove (422), the area of ​​the adjusting hole (43) gradually decreases.

4. A trocar with a hemostatic device (4) according to claim 3, characterized in that: An outwardly protruding arcuate edge (415) is provided at one end of the inserting plate (414) facing the adjusting hole (43), and the conduit (2) is located between the arcuate edge (415) and the edge of the adjusting hole (43).

5. A trocar with a hemostatic device (4) according to claim 1, characterized in that: The first clamping member (41) includes a first pressing plate (44) connected to the first clamping member (41), and the second clamping member (42) includes a second pressing plate (45) connected to the second clamping member (42). The first pressing plate (44) and the second pressing plate (45) are arranged in parallel.

6. A trocar with a hemostatic device (4) according to claim 5, characterized in that: A connecting member (5) is provided between the first pressing plate (44) and the second pressing plate (45), and the connecting member (5) is used to keep the first pressing plate (44) and the second pressing plate (45) connected to each other when the first clamping member (41) and the second clamping member (42) are not clamped.

7. A trocar with a hemostatic device (4) according to claim 4, characterized in that: The length of the clamping claw opening (412) is smaller than the width of the arc-shaped protrusion (421), and the clamping claw (411) has an elastic deformation force, so that when the clamping claw (411) of the first clamping member (41) slides toward each other along the edge of the arc-shaped protrusion (421) of the second clamping member (42), the arc-shaped protrusion (421) can be clamped into the arc-shaped slot (413) from the clamping claw opening (412).

8. A trocar with a hemostatic device (4) according to claim 7, characterized in that: The claw (411) has a first reset force that elastically deforms into the arc-shaped slot (413), and the conduit (2) has a second reset force when being squeezed by the arc-shaped edge (415) and the edge of the adjustment hole (43), and the first reset force is greater than the second reset force.

9. A trocar with a hemostatic device (4) according to any one of claims 1 to 8, characterized in that: The connector (12) is provided with a needle wing (6).

10. A trocar with a hemostatic device (4) according to claim 9, characterized in that: Anti-slip grooves (61) are provided on both sides of the needle wing (6).

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