A non-magnetic hemostatic clip chuck assembly

Abstract

The utility model relates to the field of medical devices, and discloses a non-magnetic hemostatic clip chuck assembly, the chuck assembly includes two clips with the same structure, a cup holder and a first hook; the two clips intersect and are hingedly connected to the cup holder; the clip is provided with a clamping structure, a first hook mounting structure and a release hanging platform; the cup holder is provided with a clip locking platform matching the release hanging platform, and the first hook is detachably connected to the first hook mounting structure; the clip and the cup holder are both made of non-magnetic elastic material or non-magnetic material. The clip, cup holder and pin retained in the body of the present invention are all made of non-magnetic elastic material or non-magnetic material, which can ensure that when the hemostatic clip is retained in the body, it is compatible with MRI, that is, it has no effect on the patient's magnetic resonance examination and no effect on security inspection.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a non-magnetic hemostatic clip chuck assembly. Background Art

[0002] With the development of endoscopic technology and other related technologies, endoscopic hemostasis has become the preferred treatment for gastrointestinal bleeding. Currently, the commonly used endoscopic hemostasis methods include laser coagulation, electrocoagulation, local injection of drug hemostasis, drug spraying, and suture clip closure. Among them, hemostatic clip closure has become the most effective and clinically valuable non-surgical treatment for gastrointestinal bleeding due to its low trauma, fast hemostasis, low incidence of rebleeding, few complications, and definite efficacy.

[0003] In the prior art hemostatic clips, for example, the patent with application number CN201410222753.7 discloses a hemostatic clip, including a clamping assembly and a clamp seat, the clamping assembly includes a clamp body and a wire buckle connected in sequence; a fixed pin is provided at the front end of the clamp seat, the clamp body is composed of two clamping arms, the tail ends of the two clamping arms are connected by a movable pin, and a slide groove is provided in the middle of each of the two clamping arms, the fixed pin passes through the slide groove, and the two clamping arms reciprocate along the slide groove to form the opening and closing of the clamp body; a bending structure is provided at the end of the slide groove, and when the clamping arm moves so that the fixed pin is located in the bending structure, the two clamping arms are in a locked closed position.

[0004] The above technical solutions and the hemostatic clips currently on the market are all made of metal and are magnetic, so the hemostatic clips of the hemostatic clip products currently on the market can only be compatible with MRI conditions. For patients who have wounds sutured with hemostatic clips, it usually takes one to two weeks for the wound to heal and the clamp to fall off. The residence time of the hemostatic clip in the patient's body is uncertain, especially when the clamping depth is relatively large, it often stays in the body for more than 4 weeks, and there are even reports that it has remained in the body for more than a year without falling off. Since the hemostatic clips currently used are magnetic, for patients with comprehensive diseases, if they need to undergo MRI examinations after the hemostatic clip surgery, they are greatly restricted; at the same time, for some business people who have undergone hemostatic clip wound suture surgery, because they cannot pass airport security checks, their travel will be subject to certain restrictions, which more or less causes trouble for patients and medical staff. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a non-magnetic hemostatic clip chuck assembly, the part remaining in the body is compatible with MRI, that is, it has no effect on the patient's magnetic resonance examination and has no effect on security inspection.

[0006] The utility model solves the above technical problems through the following technical means:

[0007] The utility model discloses a non-magnetic hemostatic clip chuck assembly, comprising two clips, a cup seat and a first hook; the two clips intersect and are hingedly connected to the cup seat; the clip is provided with a clamping structure, a first hook mounting structure and a release hanging platform; the cup seat is provided with a clip locking platform matching the release hanging platform, and the first hook is detachably connected to the first hook mounting structure; the clip and the cup seat are both made of non-magnetic elastic material or non-magnetic material.

[0008] In this technical solution, when performing endoscopic hemostasis on a patient, the first hook is used to pull the clip so that the clamping structure of the clip is closed to clamp the tissue; after clamping, the clip locking platform on the cup holder is locked with the release hanging platform on the clip, and finally the cup holder and the clip are located in the patient's body, and the first hook is pulled out. The non-magnetic material of the clip and the cup holder can be pure titanium material, magnesium alloy material or plastic, etc.; it can ensure that when the hemostatic clip is retained in the body, it is compatible with MRI, that is, it has no effect on the patient's magnetic resonance examination and no effect on security inspection.

[0009] Furthermore, the cup holder is provided with a U-shaped through groove, one end of the clip away from the clamping structure is located in the U-shaped through groove, a cup holder pin hole is provided at the U-shaped through groove of the cup holder, a pin mounting hole is provided on the clip, and a pin is rotatably penetrated through the cup holder pin hole and the pin mounting hole, and the pin is made of non-magnetic elastic material or non-magnetic material. With such a setting, the two clips can be hinged in the U-shaped through groove, making the opening or closing of the two clips more stable; and after the operation, the pin will also be located in the body, which is compatible with MRI, that is, it has no effect on the patient's magnetic resonance examination and no effect on security inspection.

[0010] Furthermore, a first hook guide hole is axially arranged on the cup holder, one end of the first hook passes through the first hook guide hole, and the other end of the first hook is axially arranged along the cup holder; when the first hook pulls the clip, the clip clamps the tissue, the release platform of the clip is locked on the clip locking platform, and the first hook is disengaged from the first hook mounting structure. Such a configuration allows fewer parts to remain in the patient's body.

[0011] Furthermore, the clip is also provided with a deformable release platform deformation hole, the first hook mounting structure is a first hook mounting hole, the first hook is provided with a stretchable first hook claw at one end close to the clip, and the first hook mounting hole is provided with a tearing groove. In the present technical solution, the tearing groove is provided so that it can be torn or deformed during the release process, thereby assisting the separation of the first hook from the clip; during the process of clamping the tissue to close, the rear end of the locking end of the clip first contacts with the clip locking platform of the cup holder, and during the continuous axial force of the first hook, the release platform deformation hole of the clip will be squeezed and deformed; at this time, the release platform of the clip has not yet completed the locking with the inner wall of the clip locking platform of the cup holder, and in this state, the clip can still be opened by pushing the first hook toward the front end, and this state is also the state when the clamp assembly is inserted into the endoscope clamp channel. In this state, if the pulling force is continuously applied to the first hook, the first hook will contact the front end of the first hook guide hole of the cup holder. In the process of applying the pulling force, a force perpendicular to the axial direction will be applied to the first hook, which is conducive to further increasing the deformation of the second hook release deformation hole at the tail of the clip, thereby achieving the locking of the clip release hanging platform and the clip locking platform of the cup holder. After locking, the release hanging platform deformation hole on the clip loses the axial extrusion, and the deformation is restored, achieving the locking function.

[0012] Furthermore, the chuck assembly also includes a second hook, a swivel seat, a first swivel, and a second swivel. The first swivel is fixedly connected to the second swivel. The first swivel and the second swivel are both rotatably arranged in the swivel seat. A limit table is arranged on the swivel seat, and the swivel seat is connected to the second swivel through the limit table. A swivel avoidance table and a swivel release hole are arranged on the first swivel, and a cup seat release hole is arranged on the cup seat. The second hook includes a second hook claw, and the second hook claw is detachably hung on the swivel release hole and the cup seat release hole. In the technical solution, during the clamping and releasing process, the second hook will be pulled out axially by the first hook to realize the separation of the cup seat and the first swivel. And through the arrangement of the second hook, the swivel seat, the first swivel, and the second swivel, during surgery, the axial rotation between the first swivel and the swivel seat can be realized, thereby realizing a 360° rotation of the clamping structure direction of the clip, and thus during surgery, the operation is more convenient.

[0013] Furthermore, the second hook includes a mounting plate having a through hole, two hook arms symmetrically arranged along the central axis of the mounting plate are arranged on both sides of the mounting plate, and the second hook claw is arranged on one end of the hook arm away from the mounting plate; the first hook passes through the through hole.

[0014] Furthermore, the clamping structure of the two clips is provided with clip teeth and a clamping boss on the opposite side, and the clip teeth are located at the end of the release hanger. In the technical solution, the clip teeth have a sharp head end tooth structure, which is conducive to clamping or hooking tissue; the clamping boss can increase the friction between the clip and the tissue after the clip is closed and released, preventing the tissue from slipping.

[0015] Beneficial effects of the utility model:

[0016] 1. The clip, cup holder and pin retained in the body of the utility model are all made of non-magnetic elastic material or non-magnetic material, which can ensure that when the hemostatic clip is retained in the body, it is compatible with MRI, that is, it has no effect on the patient's magnetic resonance examination and security inspection.

[0017] 2. The present invention ultimately leaves only the clip, the cup holder and the pin in the patient's body, leaving fewer fragments in the body. Not only is the mechanism more stable and reliable, but it can also reduce the workload of medical staff during surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a non-magnetic hemostatic clip chuck assembly of the utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of;

[0020] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure of the middle cup holder;

[0021] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure of;

[0022] Figure 5 yes Figure 1 Schematic diagram of the structure of the middle clip;

[0023] Figure 6 yes Figure 2 A schematic diagram of the structure of the first hook;

[0024] Figure 7 yes Figure 1 Schematic diagram of the structure of the transfer ring seat;

[0025] Figure 8 yes Figure 2 A schematic diagram of the structure of the first rotating ring;

[0026] Fig. 9 yes Figure 1 A schematic diagram of the structure of the second rotating ring;

[0027] Fig.10 yes Figure 1A schematic diagram of the structure of the second hook;

[0028] Fig.11 This is a schematic diagram of the non-magnetic hemostatic clip chuck assembly of the utility model when it is working;

[0029] in,

[0030] Clip 1, clip teeth 101, clamping boss 102, pin mounting hole 103, first hook mounting hole 104, tear groove 141, release hanging platform deformation hole 105, release hanging platform 106, cup holder 2, cup holder release hole 21, cup holder pin hole 22, U-shaped through groove 23, clip locking platform 24, first hook guide hole 25, first hook 3, first hook claw 31, swivel seat 4, limiting platform 41, first swivel 5, swivel avoidance platform 51, swivel release hole 52, second swivel 6, second hook 7, mounting plate 71, through hole 72, hook arm 73, second hook claw 74, pin 8. DETAILED DESCRIPTION

[0031] The utility model will be described in detail below with reference to the accompanying drawings:

[0032] Embodiment 1,

[0033] This embodiment is a non-magnetic hemostatic clip chuck assembly. Figure 1-11 The cup holder 2 comprises two clips 1 with the same structure, a cup holder 2, a first hook 3, a swivel holder 4, a first swivel 5, a second swivel 6, a second hook 7 and a pin 8; the two clips 1 intersect and are hingedly connected to the cup holder 2 via the pin 8; specifically, a U-shaped through groove 23 is provided on the cup holder 2, one end of the clip 1 is located in the U-shaped through groove 23, a cup holder pin hole 22 is provided at the U-shaped through groove 23 of the cup holder 2, a pin mounting hole 103 is provided on the clip 1, and the pin 8 is rotatably penetrated through the cup holder pin hole 22 and the pin mounting hole 103.

[0034] The clip 1 is provided with a clamping structure, a first hook mounting structure, a deformable release hanging platform deformation hole 105 and a release hanging platform 106; the cup holder 2 is integrally formed with a clip locking platform 24 matching the release hanging platform 106. In order to facilitate clamping or hooking tissue, the clamping structure of the two clips 1 is provided with clip teeth 101 on the opposite side; in order to increase the friction between the clip 1 and the tissue after the clip 1 is closed and released to prevent the tissue from slipping, the clamping structure of the two clips 1 is provided with a clamping boss 102 on the opposite side. The first hook 3 of this embodiment can be a wire hook or other deformable hook.

[0035] The first hook installation structure of this embodiment is a first hook installation hole 104, and a first hook claw 31 that can be stretched is provided at one end of the first hook 3 close to the clip 1, and a tearing groove 141 is provided on the first hook installation hole 104, and the first hook claw 31 is detachably connected to the first hook installation hole 104; that is, when the first hook 3 pulls the clip 1, the clip 1 clamps the tissue, and the release hanging platform 106 of the clip 1 is locked on the clip locking platform 24, the first hook 3 is detached from the first hook installation hole 104. In addition, in actual use, the first hook installation structure can also be a protruding structure that can hang the first hook 3.

[0036] The cup holder 2 is axially provided with a first hook guide hole 25, one end of the first hook 3 passes through the first hook guide hole 25, and the other end of the first hook 3 is axially distributed along the cup holder 2. The clip 1, the cup holder 2, and the pin 8 are made of non-magnetic elastic material or non-magnetic material; specifically, pure titanium material, magnesium alloy material, plastic, etc. can be used. In this embodiment, pure titanium material can be selected as needed.

[0037] In this embodiment, the first swivel 5 is fixedly connected to the second swivel 6. The first swivel 5 and the second swivel 6 are both rotatably arranged in the swivel seat 4. The swivel seat 4 is provided with a limit platform 41. The swivel seat 4 is connected to the second swivel 6 through the limit platform 41. The first swivel 5 is provided with a swivel avoidance platform 51 and a swivel release hole 52. The cup holder 2 is provided with a cup holder release hole 21. The second hook 7 includes a second hook claw 74. The second hook claw 74 is detachably hung on the swivel release hole 52 and the cup holder release hole 21. The second hook 7 includes a mounting plate 71. The mounting plate 71 is provided with a through hole 72. Two hook arms 73 symmetrically arranged along the central axis of the mounting plate 71 are arranged on both sides of the mounting. The second hook claw 74 is arranged on one end of the hook arm 73 away from the mounting plate 71. The first hook 3 passes through the through hole 72.

[0038] When the non-magnetic hemostatic clip of this embodiment is used for endoscopic hemostasis on a patient, the first hook 3 is used to pull the clip 1, so that the clamping structure of the clip 1 is closed to clamp the tissue; after clamping, the clip locking platform 24 on the cup holder 2 is locked with the release hanging platform 106 on the clip 1, and finally the cup holder 2 and the clip 1 are located in the patient's body, and the first hook 3 is pulled out.

[0039] According to the technical solution, during the clamping and releasing process, the second hook 7 will be pulled out axially by the first hook 3 to separate the cup seat 2 from the first swivel 5; and through the arrangement of the second hook 7, the swivel seat 4, the first swivel 5, and the second swivel 6, during surgery, axial rotation between the first swivel 5 and the swivel seat 4 can be achieved, thereby achieving rotation in the clamping structure direction of the clip 1, and thus making the operation more convenient during surgery.

[0040] The tear groove 141 in the present embodiment can be torn or deformed during the release process, thereby assisting the separation of the first hook 3 from the clip 1; during the closing process of the clamped tissue, the tail of the locking end of the clip 1 first contacts with the clip locking platform 24 of the cup holder 2, and during the continuous axial force application of the first hook 3, the release platform deformation hole 105 of the clip 1 will be squeezed and deformed; at this time, the release platform 106 of the clip 1 has not yet completed the locking with the inner wall of the clip locking platform 24 of the cup holder 2. In this state, pushing the first hook 3 toward the front end can still open the clip 1, and this state is also the state when the clamp assembly is inserted into the endoscope clamp channel. In this state, if the pulling force is continuously applied to the first hook 3, the first hook 3 will contact the front end of the first hook guide hole 25 of the cup holder 2. In the process of applying the pulling force, a force perpendicular to the axial direction will be applied to the first hook 3, which is conducive to further increasing the deformation of the deformation hole for releasing the second hook 7 at the tail of the clip 1, thereby achieving the locking of the release hanging platform 106 of the clip 1 and the clip locking platform 24 of the cup holder 2. After locking, the release hanging platform deformation hole 105 on the clip 1 loses the extrusion in the axial direction, and the deformation is restored, achieving the locking function.

[0041] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A non-magnetic hemostatic clip chuck assembly, characterized in that: It comprises two clips, a cup holder and a first hook; the two clips intersect and are hingedly connected to the cup holder; the clips are provided with a clamping structure, a first hook mounting structure and a release hanging platform; the cup holder is provided with a clip locking platform matching the release hanging platform, and the first hook is detachably connected to the first hook mounting structure; the clips and the cup holder are both made of non-magnetic elastic material or non-magnetic material.

2. The non-magnetic hemostatic clip chuck assembly according to claim 1, characterized in that: The cup seat is provided with a U-shaped through groove, and one end of the clip away from the clamping structure is located in the U-shaped through groove. A cup seat pin hole is provided at the U-shaped through groove of the cup seat, and a pin mounting hole is provided on the clip. A pin is rotatably penetrated through the cup seat pin hole and the pin mounting hole, and the pin is made of non-magnetic elastic material or non-magnetic material.

3. The non-magnetic hemostatic clip chuck assembly according to claim 2, characterized in that: A first hook guide hole is axially arranged on the cup seat, one end of the first hook passes through the first hook guide hole, and the other end of the first hook is distributed axially along the cup seat; when the first hook pulls the clip, the clip clamps the tissue, the release platform of the clip is locked on the clip locking platform, and the first hook is disengaged from the first hook mounting structure.

4. The non-magnetic hemostatic clip chuck assembly according to claim 3, characterized in that: The clip is also provided with a deformable release hanging platform deformation hole, the first hook mounting structure is a first hook mounting hole, the first hook is provided with a stretchable first hook claw at one end close to the clip, and the first hook mounting hole is provided with a tearing groove.

5. The non-magnetic hemostatic clip chuck assembly according to claim 1, characterized in that: The chuck assembly also includes a second hook, a swivel seat, a first swivel, and a second swivel. The first swivel is fixedly connected to the second swivel. The first swivel and the second swivel are both rotatably arranged in the swivel seat. A limiting platform is arranged on the swivel seat, and the swivel seat is connected to the second swivel through the limiting platform. A swivel avoidance platform and a swivel release hole are arranged on the first swivel, and a cup seat release hole is arranged on the cup seat. The second hook includes a second hook claw, and the second hook claw is detachably hung on the swivel release hole and the cup seat release hole.

6. The non-magnetic hemostatic clip chuck assembly according to claim 5, characterized in that: The second hook includes a mounting plate with a through hole formed on the mounting plate, two hook arms symmetrically arranged along the central axis of the mounting plate are arranged on both sides of the mounting plate, and the second hook claw is arranged on one end of the hook arm away from the mounting plate; the first hook passes through the through hole.

7. The non-magnetic hemostatic clip chuck assembly according to claim 1, characterized in that: The clamping structures of the two clamps are provided with clamping teeth and a clamping convex platform on one side opposite to the other, and the clamping teeth are located at the end of the release hanging platform.

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