Hemostatic clip head assembly and hemostatic clip

Abstract

The present invention relates to the field of medical instruments. Disclosed are a hemostatic clip head assembly and a hemostatic clip. The hemostatic clip head assembly comprises a cup base, a connecting pin, two or more clamping sheets, a push-pull rod and connectors of the same number as the clamping sheets, wherein the connecting pin is arranged on the cup base, and the clamping sheets are rotationally connected to the connecting pin; and the connectors are rotationally connected to the push-pull rod and the clamping sheets, respectively, and the clamping sheets are detachably connected to the connectors or the connectors are detachably connected to the push-pull rod. According to the present invention, when performing detachment, the connectors are directly detached from the clamping sheets or the connectors are directly detached from the push-pull rod, such that no fracture residues or no fragment splashing will be generated, thereby making an endoscopic wound suturing operation safer.

Description

Hemostatic clip chuck assembly and hemostatic clip Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a hemostatic clip chuck assembly and a hemostatic clip. Background Art

[0002] With the advancement of endoscopic and other related technologies, endoscopic hemostasis has become the preferred treatment for gastrointestinal bleeding. Commonly used endoscopic hemostasis methods include laser coagulation, electrocoagulation, local injection of drugs, drug spraying, and hemostatic clipping. Among them, hemostatic clipping has become the most effective and clinically valuable non-surgical treatment for gastrointestinal bleeding due to its minimal invasiveness, rapid hemostasis, low incidence of rebleeding, few complications, and proven efficacy.

[0003] Currently, the main wound suture products on the market are the OTSC clip and Nanwei's three-arm clamp. Although these two products can be used to stop bleeding on large wounds, they still have some problems. When the OTSC clip currently on the market is used for suturing, it is necessary to use a three-claw forceps to grab the edge tissue of the wound and pull it into the transparent cap. During the pulling process, some of the wound edge will fall off, which leads to uncertainty in the size of the wound when suturing. Moreover, when the OTSC clip is released, the front end cannot be observed because the tissue blocks the field of view. When released, it is easy to be clamped on the muscle tissue and cannot fall off naturally with the tissue. Later, it needs to be removed with the help of instruments and regular inspections are required. In addition, because the principle of the OTSC clip is based on the memory properties of nickel-titanium alloy, it needs to be processed in a specific environment and at a specific temperature, which requires very high processing technology. This also makes the cost of using the OTSC clip very high, which often makes patients discouraged. The three-arm clamp launched by Nanjing Minimally Invasive Medical Technology Co., Ltd. in recent years has also applied for a patent with application number CN202010390270.3. It includes interconnected clamping components and release parts. Although it can clamp and suture large gastrointestinal defects and defects in difficult-to-operate areas simply, quickly and effectively during endoscopic minimally invasive surgery, the three-arm clamp will bury the middle arm of the three-arm clamp in the tissue during suturing, making it difficult to fall off in the later stage. There is a great deal of uncertainty as to whether the arm will be expelled from the body after the patient recovers.

[0004] In addition to the above-mentioned problems, the current hemostatic clamps use a clamp assembly and a delivery portion that are separated by a connector or a connecting piece, or by breaking other structural parts. This will result in broken residues or flying fragments, which pose a risk of damaging the patient's digestive tract. Technical issues

[0005] In view of this, the purpose of the present invention is to provide a hemostatic clip chuck assembly and a hemostatic clip, which will not produce broken residues or fragments flying during the detachment process during endoscopic wound suturing surgery, thereby improving the safety of endoscopic wound suturing surgery. Technical Solutions

[0006] The present invention solves the above technical problems through the following technical means:

[0007] In the first aspect, the present invention discloses a hemostatic clip chuck assembly, comprising a cup holder, a connecting pin, a number of not less than two clips, a push-pull rod, and connecting pieces equal in number to the clips; the connecting pin is arranged on the cup holder disclosed in the present invention, and the clip is rotatably connected to the connecting pin; the connecting piece is rotatably connected to the push-pull rod and the clip, respectively, and the clip and the connecting piece, or the connecting piece and the push-pull rod, are detachably connected. In this technical solution, when detaching, the connecting piece and the clip, or the connecting piece and the push-pull rod, are directly detached, so that no broken residue or fragments are splashed, making endoscopic wound suturing surgery safer.

[0008] Furthermore, the clip is provided with a first connecting shaft, the connecting piece is provided with a first clip connecting hole, the first clip connecting hole is provided with a deformable first release groove, and the connecting piece is rotatably sleeved on the first connecting shaft through the first clip connecting hole. In this technical solution, because the first clip connecting hole is provided with a deformable first release groove, the first clip connecting hole becomes a deformable C-shaped notch, that is, a detachable structure is formed; when the push-pull rod is pulled forcefully, the first clip connecting hole is deformed and can be directly detached from the first connecting shaft on the clip, thereby achieving the purpose of detaching and releasing the clip and the connecting piece without generating broken residue or flying debris.

[0009] Furthermore, the clip is provided with a second connecting shaft, which is a deformable hollow structure. The connecting piece is provided with a second clip connecting hole, which is provided with a second release groove. The connecting piece is rotatably mounted on the second connecting shaft through the second clip connecting hole. During use, the second release groove can flatten and deform the second connecting shaft during the pulling process, thereby disengaging the second connecting shaft from the second clip connecting hole, thereby disengaging the connecting piece from the clip.

[0010] Furthermore, the connecting piece is provided with a third connecting shaft, the clip is provided with a first connecting piece connecting hole, and the first connecting piece connecting hole is provided with a deformable third release groove. The clip is rotatably mounted on the third connecting shaft through the first connecting piece connecting hole. During use, when the clip is pulled, the third release groove deforms, allowing the third connecting shaft to be disengaged from the first connecting piece connecting hole, thereby achieving the disengagement of the connecting piece and the clip.

[0011] Furthermore, the connecting piece is provided with a fourth connecting shaft, which is a deformable hollow structure. The clip is provided with a second connecting piece connecting hole, and the second connecting piece connecting hole is provided with a fourth release groove. The clip is rotatably mounted on the fourth connecting shaft through the second connecting piece connecting hole. When in use, during the pulling process, the fourth release groove can flatten and deform the fourth connecting shaft, thereby achieving separation of the fourth connecting shaft from the second connecting piece connecting hole, that is, achieving separation of the connecting piece and the clip.

[0012] Furthermore, a clamping piece limiting mechanism is provided on the clamping piece and the cup base. In this technical solution, the clamping piece limiting mechanism can prevent the clamping piece from opening again after clamping the digestive tract tissue, so that the clamping piece can clamp the tissue for a long time.

[0013] Furthermore, the clip retaining mechanism includes a release hook provided on the clip and a hook retaining platform provided on the cup holder, the hook retaining platform being configured to mate with the release hook. In this technical solution, when the clip is closed, the clip's release hook can be retained on the hook retaining platform, thereby preventing the clip from opening again after closing, thus avoiding the problem of the hemostatic clip being unable to maintain its position within the digestive tract for a long time.

[0014] Furthermore, the clip limiting mechanism includes a release hook provided on the cup holder and a hook limiting platform provided on the clip, and the hook limiting platform is matched with the release hook.

[0015] Furthermore, the cup holder is U-shaped and is provided with a cup holder mounting hole. A connecting pin stop and a deformable front release stop are provided on the inner wall of the cup holder mounting hole. The connecting pin is inserted into the cup holder mounting hole between the front release stop and the front end of the cup holder. Before release, the front release stop in this technical solution restricts the connecting pin at the front end of the cup holder mounting hole. When the clip is closed, the push-pull rod continues to apply tension, and the front release stop is deformed by the connecting pin, allowing the connecting pin to slide within the cup holder mounting hole to the connecting pin stop. At this time, the release hook on the clip can be hooked on the hook stop of the cup holder, thereby limiting the clip and preventing it from opening again.

[0016] Furthermore, the cup holder is U-shaped, and a cup holder mounting hole is provided on the cup holder. A connecting pin limit platform and a release front limit platform are provided on the inner wall of the cup holder mounting hole. The connecting pin is inserted into the cup holder mounting hole between the release front limit platform and the front end portion of the cup holder; the connecting pin is a deformable hollow structure.

[0017] Furthermore, the clip includes a clamping arm, one end of which is provided with a clamping claw; the clamping arm is provided with a clamping mounting hole, and the clamping arm is rotatably mounted on the connecting pin through the clamping mounting hole, and the first connecting shaft is provided on the clamping arm. With this arrangement of the present technical solution, the clamping claw is used to hook the mucosal epidermis of the wound surface, and the first connecting shaft is detachably connected to the first clamping connecting hole on the connecting plate. Under a large pulling force, the first connecting shaft can be disengaged from the connecting plate, thereby achieving release.

[0018] Furthermore, the number of the clips is two, and the claw ends of the two clips are arranged facing each other. The claw ends in this technical solution can be set to be sharper, and the two clips have a simple structure, which will also be conducive to hooking the mucosal epidermal tissue.

[0019] Furthermore, a push-pull rod connection hole is provided at one end of the connecting plate away from the first clip connection hole. A fifth connecting shaft is provided on either side of the push-pull rod. The fifth connecting shaft rotatably passes through the push-pull rod connection hole, and the push-pull rod connection hole is provided with a deformable fifth release groove. In this technical solution, the push-pull rod connection hole can be rotatably connected to the second connecting shaft on the push-pull rod, and the connecting plate can also be separated from the push-pull rod at this location.

[0020] Furthermore, the second connecting shafts on both sides of the push-pull rod are located on the same axis. In this technical solution, the two sides of the second connecting shaft are located on the same axis. After installation, it forms a four-bar linkage with the first connecting shaft, the clamping piece, and the connecting piece. Using this as a four-bar linkage allows the outer diameter of the chuck assembly to be made smaller.

[0021] Furthermore, the second connecting shafts on both sides of the push-pull rod are not located on the same axis. In this technical solution, the two sides of the second connecting shaft are not located on the same axis. After installation, it forms a five-bar linkage with the first connecting shaft, the clip and the connecting piece, making the clamping force of the clip stronger.

[0022] Furthermore, a sixth connecting shaft is provided at one end of the connecting piece away from the clip connecting hole, a push-pull rod connecting hole is provided on the push-pull rod, and the sixth connecting shaft is rotatably inserted into the push-pull rod connecting hole.

[0023] Furthermore, a first connecting hole is provided at one end of the connecting piece away from the first clip connecting hole, second connecting holes are provided on both sides of the push-pull rod, and a pin is provided between the first connecting hole and the second connector.

[0024] Furthermore, a core shaft mounting hole is provided at one end of the push-pull rod away from the clip. In this technical solution, the push-pull rod is fixedly connected to the core shaft on the handle through the core shaft mounting hole, so that the chuck assembly can be replaced.

[0025] Furthermore, the cup holder is provided with a hook retaining mechanism, and the hemostatic clip assembly further includes a hook. The hook comprises a disc having a disc hole formed therein, and two hook arms symmetrically disposed along the disc's central axis on either side of the disc. The hook arms are provided with hook claws at their ends distal to the disc. The push-pull rod is provided at its end distal to the clip to engage with the disc, and the end of the hook claw is detachably disposed on the hook retaining mechanism. In this technical solution, when the cup holder is significantly moved backward, the end face of the push-pull rod can contact the disc hole, causing the hook to retract together with the cup holder until the hook claws are released from the cup holder's hook hole.

[0026] Furthermore, a hook limiting mechanism is provided on the cup holder, and the hemostatic clip chuck assembly also includes a hook, and the hook includes two hook arms, and the two hook arms are V-shaped, and a hook claw is provided at the end of the hook, and the end of the hook claw is detachably provided on the hook limiting mechanism, and a ring is provided on one of the hook arms.

[0027] Furthermore, the hook limiting mechanism includes one of a cup holder hook hole, a hook step, and a hook groove.

[0028] In a second aspect, the present invention further discloses a hemostatic clip, which includes the above-mentioned hemostatic clip clamp assembly and an operating handle, wherein the operating handle is fixedly connected to the push-pull rod. Beneficial effects

[0029] When the hemostatic clip of the present invention is in use, the connecting piece and the clamping piece, or the connecting piece and the push-pull rod can be directly detached through the detachable structure, thereby achieving the purpose of detaching and releasing the clamping piece and the connecting piece, or the connecting piece and the push-pull rod. No broken residue or fragment splashing will be generated during the detachment process, making endoscopic wound suturing surgery safer.

[0030] The present invention is provided with a release hook on the clip, and a hook limit platform is provided on the cup seat. Through the arrangement of the cup seat mounting hole and the connecting pin limit platform, when the connecting piece is released and disengaged from the clip, the release hook can be pulled onto the hook limit platform, so that the release hook is hung on the hook limit platform, thereby making the clip clamping the tissue more stably and avoiding falling off before the digestive tract wound is healed.

[0031] The present invention sets a fifth connecting shaft on both sides of the push-pull rod. The two fifth connecting shafts can form a four-link structure on the same axis, or form a five-link structure on different axes. Users can choose according to the requirements of clamping force or outer diameter, which has wider applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a schematic structural diagram of a hemostatic clip chuck assembly according to the present invention;

[0033] FIG2 is a schematic structural diagram of the cup holder in FIG1 ;

[0034] FIG3 is a schematic structural diagram of the clip in FIG1 ;

[0035] FIG4 is a schematic structural diagram of the connecting piece in FIG1 ;

[0036] Figure 5 is a schematic structural diagram of the push-pull rod in Figure 1;

[0037] FIG6 is a schematic structural diagram of the hook in FIG1 ;

[0038] Figure 7 is a schematic diagram of the two clips in a closed but unreleased state;

[0039] Figure 8 is a schematic diagram of the two clips in the released state;

[0040] FIG9 is a working diagram of a hemostatic clip chuck assembly of the present invention during suturing;

[0041] FIG10 is a schematic structural diagram of the hook in Example 9.

[0042] in,

[0043] Clip 1, clamping claw end 11, clip mounting hole 12, release hook 13, first connecting shaft 14, clamping arm 15,

[0044] Cup holder 2, cup holder hook hole 21, connecting pin limit platform 22, release front limit platform 23, cup holder installation hole 24, hook limit platform 25, connecting pin 26,

[0045] Connecting piece 3, clip connecting hole 31, release groove 32, push-pull rod connecting hole 33, push-pull rod 4, second connecting shaft 41, core shaft mounting hole 42,

[0046] Hook 5, disc hole 51, hook arm 52, hook claw 53, and ring 54. Best Mode for Carrying Out the Invention Example 1

[0047] A hemostatic clip chuck assembly of this embodiment, as shown in FIG1-8 , includes a cup base 2 , a connecting pin 26 , two clips 1 , a push-pull rod 4 , two connecting pieces 3 and a hook 5 .

[0048] As shown in Figure 2, the cup holder 2 of this embodiment has a U-shaped cylindrical structure. Two strip-shaped cup holder mounting holes 24 are provided on the upper part of the cup holder 2. A connecting pin limit platform 22 and a deformable release front limit platform 23 are provided on the inner wall of the cup holder mounting hole 24. As shown in Figures 1 and 7, when not released, the connecting pin 26 is inserted into the cup holder mounting hole 24 between the release front limit platform 23 and the front end of the cup holder 2; in addition, a cup holder hook hole 21 is provided on the lower part of the cup holder 2.

[0049] As shown in Figure 3, the clip 1 includes a clamp arm 15, which has a first connecting shaft 14 integrally formed on the clamp arm 15, a release hook 13 integrally formed on the left end of the clamp arm 15, and a clamp claw end 11 integrally formed on the right end. A clamp mounting hole 12 is provided on the clamp arm 15, and the clamp mounting hole 12 is rotatably sleeved on the connecting pin 26. The hook limit platform 25 is matched with the release hook 13, that is, when the clamp 1 is closed, the release hook 13 can be limited on the hook limit platform 25, thereby preventing the clamp 1 from opening again after closing, avoiding the problem that the hemostatic clip cannot be clamped for a long time in the digestive tract.

[0050] As shown in Figure 4, a clip connection hole 31 is opened on the left end of the connecting piece 3, a push-pull rod connection hole 33 is opened on the right end of the connecting piece 3, and a deformable release groove 32 is opened on the clip connection hole 31. The clip connection hole 31 is rotatably sleeved on the first connecting shaft 14 of the clip 1.

[0051] As shown in Figure 5, the second connecting shaft 41 is fixedly installed on both sides of the push-pull rod 4. The second connecting shaft 41 is rotatably inserted into the push-pull rod connecting hole 33. In this embodiment, the second connecting shaft 41 on both sides of the push-pull rod 4 is located on the same axis. After installation, it forms a four-bar linkage mechanism with the first connecting shaft 14, the clip 1 and the connecting plate 3.

[0052] As shown in Figure 6, the hook 5 includes a disc with a disc hole 51 formed on it. Two hook arms 52 are welded on both sides of the disc and are symmetrical along the central axis of the disc. The end of the hook arm 52 away from the disc is integrally formed with a bent hook claw 63; wherein, the end of the push-pull rod 4 away from the clip 1 is against the disc, and the end of the hook claw 63 can be detachably inserted into the cup holder hook hole 21.

[0053] In order to facilitate the hooking of the mucosal epidermal tissue, the ends of the clamping claws 11 of the two clamping pieces 1 are arranged to face each other, and the angle between the clamping claws 11 and the clamping arms 15 can be an acute angle, a right angle or an obtuse angle, and in this embodiment it is an acute angle.

[0054] In order to realize the replacement of the chuck assembly, a core shaft mounting hole 42 is opened at the right end of the push-pull rod 4; the core shaft mounting hole 42 can be connected to the core shaft thread or buckle on the handle for easy disassembly.

[0055] Before use, the hemostatic clamp assembly of this embodiment is fixedly mounted on the core shaft of the operating handle and then inserted into the human digestive system along with the endoscope. By moving the endoscope head end, as shown in Figure 9, one side of the clamp assembly is adjusted to the edge of the wound surface. After operating the endoscope to hook the clamping claw end 11 of the clip 1 into the mucosal epidermis, the endoscope is operated again to move the clamping claw end 11 of the other clip 1 to the other side of the wound surface. After operating the endoscope to hook the clamping claw end 11 of the clip 1 into the mucosal epidermis, the sliding handle of the operating handle is slid to slowly close the clamp assembly. After the two clips 1 are fully closed, if the clamping position is ideal, the sliding handle of the operating handle can be further pulled back. When a certain force value is reached, the connecting pin 26 moves backward relative to the cup holder 2, forcing the release front limit plate 23 on the cup holder 2 to deform and lose its limit function.

[0056] At this point, the clip 1 and connecting pin 26 slide backward in the cup holder mounting hole 24 of the cup holder 2. During this backward movement, the release hook 13 on the clip 1 also slides backward, eventually hooking onto the hook stop 25 of the cup holder 2. The clip 1 and cup holder 2 are now locked. The operating handle is then slid backward further, and the connecting pin 26 presses against the cup holder mounting hole 24 of the cup holder 2, preventing the clip 1 from moving further backward. As the tension on the first connecting shaft 14 increases, it gradually opens the release slot 32 on the connecting piece 3, separating the connecting piece 3 from the clip 1.

[0057] At this time, the cup holder 2 will move backward significantly. During this process, the end surface of the core shaft mounting hole 42 of the push-pull rod 4 will press against the disc hole 51 of the hook 5, causing the hook 5 to move backward together, resulting in the hook claw 63 of the hook 5 being disengaged from the cup holder hook hole 21 of the cup holder 2, thereby achieving the separation effect. Modes for Carrying Out the Invention Example 2

[0058] Compared with Example 1, this embodiment differs in that: a second connecting shaft is fixedly connected to the clip, and the second connecting shaft is a deformable hollow structure; a second clip connection hole is formed in the connecting piece, and a second release groove is provided in the second clip connection hole. The connecting piece is rotatably mounted on the second connecting shaft through the second clip connection hole. Thus, when in use, the second release groove can flatten and deform the second connecting shaft during the pulling process, thereby disengaging the second connecting shaft from the second clip connection hole, thereby disengaging the connecting piece from the clip. Example 3

[0059] This embodiment differs from Embodiment 1 in that a third connecting shaft is provided on the connecting piece, a first connecting piece connecting hole is provided on the clip, and a third deformable release groove is provided in the first connecting piece connecting hole. The clip is rotatably mounted on the third connecting shaft through the first connecting piece connecting hole. Thus, during use, when the clip is pulled, the third release groove deforms, disengaging the third connecting shaft from the first connecting piece connecting hole, thereby disengaging the connecting piece from the clip. Example 4

[0060] Compared with Example 1, this embodiment differs in that a fourth connecting shaft is provided on the connecting piece, the fourth connecting shaft being a deformable hollow structure, a second connecting piece connecting hole is provided on the clip, and a fourth release groove is provided in the second connecting piece connecting hole. The clip is rotatably mounted on the fourth connecting shaft through the second connecting piece connecting hole. Thus, when in use, during the pulling process, the fourth release groove can flatten and deform the fourth connecting shaft, thereby disengaging the fourth connecting shaft from the second connecting piece connecting hole, thereby disengaging the connecting piece from the clip. Example 5

[0061] Compared with Example 1, the difference between this embodiment is that the second connecting shafts 41 on both sides of the push-pull rod 4 in this embodiment are not located on the same axis (not shown in the figure); through such an arrangement, this embodiment forms a five-link mechanism with the second connecting shaft 41, the first connecting shaft 14, the clip 1 and the connecting piece 3 after installation, so that the clamping force of the clip 1 is greater, and it can be used in hemostatic clamping operations that require a greater clamping force. Example 6

[0062] Compared with Example 1, the difference between this embodiment is that a fourth connecting shaft is provided on the connecting plate, the fourth connecting shaft is a deformable hollow structure, a second connecting plate connecting hole is opened on the clip, a fourth release groove is provided on the second connecting plate connecting hole, and the clip is rotatably mounted on the fourth connecting shaft through the second connecting plate connecting hole. Example 7

[0063] Compared with Example 1, the present embodiment is different in that the clip limiting mechanism includes a release hook provided on the cup holder and a hook limiting platform provided on the clip, and the hook limiting platform is matched with the release hook; that is, when the clip is closed, the release hook on the cup holder can be limited on the hook limiting platform of the clip, thereby preventing the clip from opening again after closing, avoiding the problem that the hemostatic clip cannot be clamped firmly in the digestive tract for a long time. Example 8

[0064] This embodiment differs from Embodiment 1 in that a first connection hole is provided at the end of the connecting piece away from the first clip connection hole, second connection holes are provided on both sides of the push-pull rod, and a pin is provided between the first connection hole and the second connector. This provides another connection method between the connecting piece and the push-pull rod. Example 9

[0065] This embodiment differs from the first embodiment in that, as shown in FIG10 , a hook limiting mechanism is provided on the cup holder. The hemostatic clip assembly further includes a hook, which includes two hook arms 52 in a V-shape. The ends of the hooks are provided with hook claws 53. The ends of the hook claws 53 are detachably attached to the hook limiting mechanism. One of the hook arms is provided with a ring 54. The hook limiting mechanism of this embodiment is a hook step provided on the cup holder. This arrangement allows the hook claws 53 to disengage from the hook step when the hooks are moved backwards, further achieving a separation effect.

[0066] Example 10

[0067] Compared to Example 1, this embodiment differs in that the cup holder is U-shaped and has a cup holder mounting hole. The inner wall of the cup holder mounting hole is provided with a connecting pin stop and a front release stop. The connecting pin is inserted into the cup holder mounting hole between the front release stop and the front end of the cup holder. The connecting pin is a deformable hollow structure. In this embodiment, when the connecting pin is pulled backward, it is blocked by the connecting pin stop, deforming and then entering the cup holder mounting hole between the front release stop and the rear end of the cup holder.

[0068] Example 11

[0069] This embodiment differs from Example 1 in that a push-pull rod connection hole is provided at the end of the connecting piece away from the first clip connection hole, and a fifth connecting shaft is provided on either side of the push-pull rod. The fifth connecting shaft rotatably passes through the push-pull rod connection hole, and a fifth deformable release groove is provided in the push-pull rod connection hole. This embodiment allows the push-pull rod and the fifth connecting shaft to be disengaged.

[0070] Example 12

[0071] This embodiment is a hemostatic clip, comprising the hemostatic clip chuck assembly and an operating handle as described in any one of the above embodiments 1-11, wherein the operating handle is fixedly connected to the push-pull rod 4.

[0072] The above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that the technical solutions of the present invention may be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, and such modifications or equivalents shall be encompassed by the claims of the present invention. Any techniques, shapes, and structures not described in detail herein are well known.

Claims

1. A hemostatic clip chuck assembly, characterized in that: The chuck assembly includes a cup seat, a connecting pin, no less than two clips, a push-pull rod and connecting plates equal to the number of the clips; the connecting pin is arranged on the cup seat, and the clip is rotatably connected to the connecting pin; the connecting plate is rotatably connected to the push-pull rod and the clip respectively, and the connection between the clip and the connecting plate or the connection between the connecting plate and the push-pull rod is detachable.

2. A hemostatic clip chuck assembly according to claim 1, characterized in that: The clip is provided with a first connecting shaft, the connecting piece is provided with a first clip connecting hole, the first clip connecting hole is provided with a deformable first releasing groove, and the connecting piece is rotatably sleeved on the first connecting shaft through the first clip connecting hole.

3. The hemostatic clip assembly according to claim 1, characterized in that: The clip is provided with a second connecting shaft, which is a deformable hollow structure; the connecting piece is provided with a second clip connecting hole, which is provided with a second release groove, and the connecting piece is rotatably sleeved on the second connecting shaft through the second clip connecting hole.

4. The hemostatic clip assembly according to claim 1, characterized in that: The connecting piece is provided with a third connecting shaft, the clamp is provided with a first connecting piece connecting hole, the first connecting piece connecting hole is provided with a deformable third releasing groove, and the clamp is rotatably sleeved on the third connecting shaft through the first connecting piece connecting hole.

5. The hemostatic clip assembly according to claim 1, characterized in that: A fourth connecting shaft is arranged on the connecting plate, and the fourth connecting shaft is a deformable hollow structure. A second connecting plate connecting hole is opened on the clamping plate, and a fourth release groove is arranged on the second connecting plate connecting hole. The clamping plate is rotatably sleeved on the fourth connecting shaft through the second connecting plate connecting hole.

6. The hemostatic clip chuck assembly according to claim 1, characterized in that: The clip and the cup holder are provided with a clip limiting mechanism.

7. The hemostatic clip chuck assembly according to claim 6, characterized in that: The clip limiting mechanism comprises a release hook arranged on the clip and a hook limiting platform arranged on the cup holder, and the hook limiting platform is matched with the release hook.

8. The hemostatic clip chuck assembly according to claim 6, characterized in that: The clip limiting mechanism comprises a release hook arranged on the cup holder and a hook limiting platform arranged on the clip, and the hook limiting platform is matched with the release hook.

9. The hemostatic clip assembly according to claim 1, characterized in that: The cup holder is U-shaped and is provided with a cup holder mounting hole. A connecting pin limit platform and a deformable release front limit platform are provided on the inner wall of the cup holder mounting hole. The connecting pin is inserted into the cup holder mounting hole between the release front limit platform and the front end of the cup holder.

10. The hemostatic clip chuck assembly according to claim 1, characterized in that: The cup holder is U-shaped and is provided with a cup holder mounting hole. A connecting pin limit platform and a release front limit platform are provided on the inner wall of the cup holder mounting hole. The connecting pin is inserted into the cup holder mounting hole between the release front limit platform and the front end of the cup holder. The connecting pin is a deformable hollow structure.

11. The hemostatic clip chuck assembly according to claim 2, characterized in that: The clamp also includes a clamp arm, one end of which is provided with a clamp claw end; a clamp mounting hole is provided on the clamp arm, and the clamp arm is rotatably sleeved on the connecting pin through the clamp mounting hole, and the first connecting shaft is provided on the clamp arm.

12. The hemostatic clip assembly according to claim 11, characterized in that: There are two clamping pieces, and the clamping claw ends of the two clamping pieces are arranged facing each other.

13. The hemostatic clip assembly according to claim 2, characterized in that: A push-pull rod connecting hole is provided at one end of the connecting plate away from the first clamp connecting hole, and a fifth connecting shaft is provided on both sides of the push-pull rod. The fifth connecting shaft is rotatably inserted into the push-pull rod connecting hole, and a deformable fifth release groove is provided on the push-pull rod connecting hole.

14. The hemostatic clip assembly according to claim 13, characterized in that: The fifth connecting shafts on both sides of the push-pull rod are located on the same axis.

15. The hemostatic clip assembly according to claim 13, characterized in that: The fifth connecting shafts on both sides of the push-pull rod are not located on the same axis.

16. The hemostatic clip chuck assembly according to claim 2, characterized in that: A sixth connecting shaft is arranged at one end of the connecting sheet away from the clamping sheet connecting hole, a push-pull rod connecting hole is arranged on the push-pull rod, and the sixth connecting shaft is rotatably inserted into the push-pull rod connecting hole.

17. The hemostatic clip assembly according to claim 6, characterized in that: A first connection hole is arranged at one end of the connection sheet away from the first clip connection hole, second connection holes are arranged on both sides of the push-pull rod, and a pin shaft is passed through the first connection hole and the second connector.

18. The hemostatic clip chuck assembly according to claim 1, characterized in that: A core shaft mounting hole is arranged at one end of the push-pull rod away from the clamping piece.

19. The hemostatic clip chuck assembly according to claim 1, characterized in that: The cup seat is provided with a hook limiting mechanism, the hemostatic clip chuck assembly also includes a hook, the hook includes a disc, a disc hole is opened on the disc, two hook arms symmetrical along the central axis of the disc are provided on both sides of the disc, and a hook claw is provided at one end of the hook arm away from the disc; the push-pull rod is provided with one end away from the clip in cooperation with the disc, and the end of the hook claw is detachably provided on the hook limiting mechanism.

20. The hemostatic clip assembly according to claim 1, characterized in that: The cup seat is provided with a hook limiting mechanism, the hemostatic clip chuck assembly also includes a hook, the hook includes two hook arms, the two hook arms are V-shaped, the end of the hook is provided with a hook claw, the end of the hook claw is detachably arranged on the hook limiting mechanism, and one of the hook arms is provided with a ring.

21. A hemostatic clip chuck assembly according to claim 19 or 20, characterized in that: The hook limiting mechanism includes one of a cup holder hook hole, a hook step and a hook groove.

22. A hemostatic clip, characterized in that: The hemostatic clip comprises the hemostatic clip clamp assembly according to claim 1 and an operating handle, wherein the operating handle comprises a core shaft, and the core shaft is fixedly connected to the push-pull rod.

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