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Medical hemostatic clip

A technology of hemostatic clips and clips, applied in medical science, wound clips, surgery, etc., can solve problems such as difficult repeated positioning, delay in operation time, damage to clip performance, etc., and achieve stable and reliable release process, flexible rotation to adjust angle, and release Stable and reliable effect

Pending Publication Date: 2019-12-27
MICRO TECH (NANJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The prior art WO2006098994A1 discloses a hair-running clip. The shortcoming of the hair-running clip is that multiple clips are connected end-to-end in sequence, and the control line is only connected to the most proximal clip. When a pulling force is applied to the farthest clip to release When the distal clips are used, the force needs to be transmitted through the subsequent clips. In order to effectively transmit the force to the distal clips and ensure that there is no disconnection between the rear clips, the connection strength between the rear clips needs to be gradually increased. If the most distal clip If it is not released successfully, the clip at the rear end is likely to fail due to excessive tension. At this time, the entire hemostatic clip assembly needs to be replaced. This situation will not only delay the operation time but also increase the cost of the patient.
In addition, when the most distal clip is released, the rear clips all bear a certain force, so the performance of the clips will be damaged, which will lead to inconsistent stability and reliability of each clip and affect the therapeutic effect
[0006] The prior art CN107280723A discloses a hair extension clip. The shortcoming of the hair extension clip is that the design structure of the hemostatic clip cannot realize the repeated opening and closing of the clip, nor can it realize the flexible rotation of the clip. , it is difficult for the doctor to adjust the angle between the clip and the lesion. When the tissue prolapses, the distal clip can only be released, and the rear clip is used to re-clamp the tissue. It is difficult to use the same clip for repeated positioning, which increases the cost and difficulty of the operation.
[0007] The prior art CN107106181A discloses a hair-running clip. The shortcoming of the hair-running clip is that the structure of the hair-running clip cannot realize repeated opening of the clip. When the clip slips off from the tissue to be clamped, The distal clip cannot be expanded again, it can only be released, and the clip at the back is reloaded, which increases the cost of the operation
[0008] It can be seen that there are certain design defects in the structure of the existing continuous hair clips, resulting in the clips being either unable to be opened and closed repeatedly, or unable to adjust the angle flexibly, or during the clip release process, the subsequent clips to be released will be affected by the release of the distal clip. lead to a decrease in clip performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Such as Figure 1-10 The first embodiment of the shown Chinese medicine hemostatic clip of the present invention, wherein this hemostatic clip is a hair clip (such as figure 1 As shown), there is a clip assembly (not shown in the figure) including more than two clips 1 arranged in the axial direction, and each clip 1 in the clip assembly is connected in series in the axial direction and can control the opening or Closed control line 2, the clip 1 includes a clip body (not shown in the figure) and a clip seat 14, the distal end of the control line 2 is releasably connected to the clip body of the farthest clip 11; The sub also includes a handle 3 located at the proximal end of the control wire 2 and used to control the axial forward and backward movement of the control wire 2, and a sheath 4, the control wire 2 extends along the lumen of the sheath 4, and the control wire 2 The proximal end of the wire is fixedly connected to the slider 31 on the handle 3, and the clip ...

Embodiment 2

[0079] like Figure 12 As shown, the connection between the outer sheath tube and the inner sheath tube in Example 1 is changed. In Embodiment 2, the proximal end of the outer sheath tube 41 is directly fixedly connected to the outer wall of the second inner sheath tube 43 through the fixed connection part 71. Correspondingly, during the release process, the movement of the control wire can be used alone to control For the release of the most distal clip 11 , the specific operation process can refer to the operation method of releasing the clip by using the control wire in Embodiment 1, and will not be repeated here.

Embodiment 3

[0081] like Figure 13 As shown, based on the basic structure of Embodiment 1, as an alternative, the outer sheath tube 41 and the inner sheath tube in Embodiment 4 are replaced by a relatively movable mode. In the process of releasing the most distal clip 11, the method of moving the outer sheath tube 41 can also be used. Specifically, in the process of releasing the clip, the release assembly is also first released from the release channel of the most distal clip 11, and then along the Figure 13 As shown in the direction of the middle dotted line, by pulling the outer sheath to the proximal end, the protruding surface on the inner side of the limiting boss 51 is radially expanded by the radial and axial pressure of the first inner sheath and then pulled to the farthest point of the first inner sheath. the outer periphery of the end and release the most distal clip 11. It can be seen that, based on Example 1 and Example 3, there are two ways to release the clip in the prese...

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PUM

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Abstract

A medical hemostatic clip includes at least the following structures: a clip component, a control line, a handle and a sheath pipe; the clip component is connected in series through the control line in the axial direction, and the control line is moved to control opening or closing of a clip located at the most far end; the handle is used to control the control line to move forward and backward; and the far end of the sheath pipe has a limiting component, the near end side of the limiting component has a limiting space facing the axial direction of the sheath pipe, and at least a part of the clip located at the most far end is releasably limited in the limiting space by the limiting component. The medical hemostatic clip has the technical effects of repeatable opening and closing, rotationand the like.

Description

technical field [0001] The invention relates to a medical hemostatic clip, belonging to a medical device used in a human body. Background technique [0002] Endoscopy has been born for more than 50 years, and has gone through the stages from disease diagnosis to disease treatment. The treatment of specific diseases has been very effective and reliable, and has been widely used. The stomach and intestines of organisms often suffer from bleeding or mucosal damage, or even perforation, due to various diseases, accidental injuries, or injuries during endoscopic diagnosis and treatment. For active bleeding, drug spraying, high-frequency electrocautery burning, or mechanical compression with hemostatic clips are generally used for treatment. Among them, hemostatic clip mechanical compression hemostasis is more reliable for the treatment of active bleeding not caused by varicose veins, and has been generally recognized by doctors and patients. With the development of endoscopic he...

Claims

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Application Information

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IPC IPC(8): A61B17/122A61B17/128
CPCA61B17/122A61B17/1285A61B2017/12004A61B17/083A61B17/10
Inventor 茅爱武邹晓平唐志范茗侨解欢宋冉李常青李宁奚杰峰金鸿雁韦建宇刘春俊
Owner MICRO TECH (NANJING) CO LTD
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