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A technology of tissue clips and endoscopes, which is applied in the field of medical devices, can solve problems such as complex structures, affecting the stability and reliability of tissue closure devices, high production costs and quality control costs
Pending Publication Date: 2020-12-29
MICRO TECH (NANJING) CO LTD
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Abstract
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[0004] At present, in addition to the basic tissue clamping function, some tissue closure devices on the market also have the function of rotation and multiple opening and closing functions. Due to the increase in the functions of tissue closure devices, existing tissue closure devices Most closure devices have complex structures, high production costs and quality control costs, which affect the stability and reliability of tissue closure devices
Method used
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Embodiment 1
[0066] see Figure 1 to Figure 16 , the tissue clipping device for endoscope according to the embodiment of the present invention, comprising:
[0067] The clip 11 has at least two clip legs.
[0068] The control wire 13 is detachably connected to the perforation 111 at the proximal end of the clip 11 .
[0069] An axial sheath, the axial sheath is arranged around the control line 13 .
[0070] A sleeve 12 is used to accommodate the proximal portion of the clip 11 and is detachably connected to the distal end of the axial sheath.
[0071] The retainer, the retainer is used to maintain the connection between the sleeve 12 and the axial sheath, and is used to separate the sleeve 12 from the axial sheath through its deformation under the action of the control wire 13 .
[0072] The control mechanism 17 is connected to the proximal end of the axial sheath and connected to the proximal end of the control wire 13 .
[0073] The control wire 13 can control opening or closing of a...
Embodiment 2
[0118] see figure 1 , Figure 17 to Figure 19 , in this embodiment, the difference between the tissue clipping device for endoscope and the first embodiment of the present invention is:
[0119] The retainer is a twist retainer tab 224 provided on the proximal end of the sleeve 22 .
[0120] The twist holding piece 224 has a connecting portion 2241 and a twisting portion 2242. The connecting portion 2241 is arranged on both sides of the twisting portion 2242 and is connected with the sleeve 22; The inner side is inclined, and the distal end of the torsion portion 2242 is inclined toward the outer side of the sleeve 22 .
[0121] The distal end of the torsion portion 2242 is used to maintain the connection between the sleeve 22 and the axial sheath, and is used to separate the sleeve 22 from the axial sheath through its deformation under the action of the control wire 13 .
[0122] In this embodiment, the axial sheath includes a support seat 15 and a sheath body 16 .
[012...
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Abstract
The invention provides a tissue clamping device for endoscope, comprising: a clamp with at least two clamp legs; a control line detachably connected to the perforation at the proximal end of the clamp; an axial sheath arranged around the control line; a sleeve detachably connected to the distal end of the axial sheath is used for accommodating the proximal end of the clamp; a retainer used to maintain the connection between the sleeve, and used to detach the axial sheath from the sleeve through the deformation of the retainer under the action of the control line; a control mechanism connectedto the proximal end of the axial sheath and the proximal end of the control line; and the control line can control at least two clamp legs of the clamp to open or close through the control mechanism.According to the invention, besides the function of rotating and multiple opening and closing, the tissue clamping device for endoscope has advantages of simplified structure, low cost in production and quality control, and the use stability and reliability of the tissue clamping device are guaranteed.
Description
technical field [0001] The invention relates to the technical field of medical instruments, in particular to a tissue clipping device for passing through an endoscope. Background technique [0002] The tissue clipping device is a medical device for the treatment of active bleeding or mucosal injury in the stomach and intestines. When in use, the operator will use the delivery parts to move the tissue clamping device away from the hemostatic clip (also known as the clamping component) at the operating end through the endoscope channel into the stomach, intestines or digestive tract, etc., and reach the lesion position. The operating end of the tissue clamping device is operated, so that the hemostatic clip can stop bleeding or clamp the wound surface. [0003] The hemostatic clip mainly achieves the purpose of hemostasis and clamping by clamping blood vessels and surrounding tissues. Its hemostatic principle is similar to surgical blood vessel suture or ligation. It is a mec...
Claims
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Application Information
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