Bent excitation closure clip

Abstract

The utility model relates to a bent excitation closing clamp which comprises a bent outer sleeve, the bent outer sleeve comprises a bent section and a clamping section which are internally communicated, a plurality of flexible push rods which are sequentially connected end to end are arranged in the bent section, and a movable excitation clamp and a hemostasis clamp connected with the end of the clamping section are arranged in the clamping section. The end of the flexible push rod abuts against the end of the excitation clamp, and the flexible push rod can push the excitation clamp to close the hemostatic clamp for clamping the blood vessel / tissue. The utility model has the characteristics of good operation visual field, adaptability to blood vessels / tissues at specific angles, high-efficiency closure of the blood vessels / tissues, and the like.

Description

Technical Field

[0001] The utility model relates to a curved excitation closing clamp, belonging to the technical field of medical equipment. Background Art

[0002] In surgical operations, hemostatic clips are often used to clamp human blood vessels, tissues, etc. to stop bleeding and intercept flow. Hemostatic clips are commonly found in endoscopes. They refer to a method of hemostasis in which the hemostatic clips are delivered into the body through the endoscope clamp channel to directly clamp visible bleeding blood vessels and lesions. The purpose of hemostasis is mainly achieved by clamping blood vessels and surrounding tissues.

[0003] A Chinese patent application with publication number CN210277256U discloses a screw-on hemostatic ligation set, comprising: a hemostatic ligation clip device and a clip applier device; the hemostatic ligation clip device is inserted along a first straight line direction and screwed to one end of the clip applier device; the hemostatic ligation clip device comprises: an outer sleeve, an inner layer clip, an outer layer clip and a piston; the clip applier device comprises: a cavity tube and a push pin for pushing the piston to move; the cavity tube is formed with a second central through hole extending along the first straight line; the outer sleeve comprises an exposed end and an installation and fixing end inserted into and screwed into the cavity tube; a screw button protruding from the outer surface of the installation and fixing end is formed on the outer periphery of the installation and fixing end; and a buckle groove adapted to the screw button is formed on the inner surface of the cavity tube.

[0004] In the above-mentioned prior art, the outer cover is relatively wide, which will block the field of view of the endoscope and make it difficult for the doctor to close under visual conditions. In addition, the outer cover is a straight structure, which not only blocks the target device, but also makes it difficult to close the blood vessels / tissues at a specific angle. Utility Model Content

[0005] The utility model aims to provide a curved excitation closure clip, which solves the problems of poor surgical field of view and difficulty in closing blood vessels / tissues at specific angles in the prior art.

[0006] The above-mentioned technical purpose of the utility model is mainly solved by the following technical solutions: a curved excitation closing clamp, comprising a curved outer sleeve, the curved outer sleeve comprising an internally connected curved section and a clamping section, a plurality of flexible push rods connected end to end in sequence are arranged inside the curved section, a movable excitation clamp and a hemostatic clamp connected to the end of the clamping section are arranged inside the clamping section, the end of the flexible push rod abuts against the end of the excitation clamp, and the flexible push rod can push the excitation clamp to close the hemostatic clamp that clamps the blood vessel / tissue; the arrangement of the above-mentioned curved outer sleeve makes a large angle between the hemostatic clamp at the end of the outer sleeve and the axis of the endoscope, which can avoid the outer sleeve blocking the line of sight of the endoscope, so that the doctor can perform the closing operation under visual conditions, and at the same time, the curved outer sleeve enables the doctor to more easily deliver the hemostatic clamp to the target device in a narrow surgical environment, and can adapt to blood vessels / tissues at specific angles. At the same time, the arrangement of the flexible push rod can maintain the pushing function of the excitation clamp in the curved outer sleeve, so that the excitation clamp can close the hemostatic clamp, ensuring the stable implementation of the closing operation.

[0007] Preferably, the front and rear ends of the flexible push rod are respectively provided with an acute-angle end and a matching groove matching with other acute-angle ends, and the matching groove is opened up and down; the setting of the above-mentioned acute-angle ends and matching grooves can avoid the formation of angle limitation on the flexible push rods when the front and rear of each flexible push rod abut against each other, so that the flexible push rod can move along the curved structure of the curved sleeve and maintain the transmission of force to realize the pushing of the excitation clamp.

[0008] Preferably, the flexible push rod is provided with outer protrusions on both sides, and strip grooves cooperating with the outer protrusions are provided on both sides of the inner part of the curved section. Limiting parts are formed on the upper and lower sides of the flexible push rod, and accommodating grooves for accommodating the limiting parts are respectively provided on the upper and lower sides of the inner part of the curved section. The coordination of the above-mentioned outer protrusions and strip grooves is so as to maintain the stability of the flexible push rod during movement and avoid the transfer of force caused by position offset when each flexible push rod moves. The setting of the limiting parts and the accommodating grooves enhances the stability of the flexible push rod during movement and avoids excessive relative position offset of each flexible push rod, while facilitating the rapid positioning and assembly of the flexible push rod.

[0009] Preferably, a slot is provided at the top of the accommodating groove on the upper side of the bending section, and a stop block is provided on the upper side of the flexible push rod which is inclined toward the limiting portion, and the highest point of the stop block protrudes from the slot; the arrangement of the above-mentioned slot and stop block enables the stop block of one of the flexible push rods to fit into the slot after the flexible push rod pushes the excitation clamp to close the hemostatic clamp, thereby avoiding retreat and maintaining normal movement of the flexible push rod.

[0010] Preferably, a closing groove is formed on the excitation clip, which is open to the hemostatic clip, and limiting protrusions are provided on the upper and lower sides of the closing groove. A limiting groove cooperating with the limiting protrusion is provided on the outer side of the hemostatic clip. The closing groove is convenient for accommodating the hemostatic clip to close the hemostatic clip after clamping the blood vessel / tissue, and the limiting protrusion and the limiting groove are arranged so as to maintain the stability of the relative movement between the excitation clip and the hemostatic clip, thereby avoiding misalignment between the excitation clip and the hemostatic clip and affecting the closing effect on the blood vessel / tissue.

[0011] Therefore, the utility model has the characteristics of good surgical field of view, adaptability to blood vessels / tissues at specific angles, and efficient closure of blood vessels / tissues. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 yes Figure 1 Schematic diagram of the structure of the flexible push rod, excitation clamp and hemostatic clamp.

[0014] Figure 3 yes Figure 1 Structural cross-sectional view of the curved section in FIG. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0016] like Figure 1-2 As shown, a curved excitation closing clamp comprises a curved outer sleeve 1, which comprises an internally connected curved section 11 and a clamping section 12, wherein the curved section 11 is provided with a plurality of flexible push rods 13 which are connected end to end in sequence, and the clamping section 12 is provided with a movable excitation clamp 14 and a hemostatic clamp 15 which is connected to the end of the clamping section 12, wherein the end of the flexible push rod 13 abuts against the end of the excitation clamp 14, and the flexible push rod 13 can push the excitation clamp 14 to close the hemostatic clamp 15 which clamps the blood vessel / tissue, and a closing groove 141 which is open toward the hemostatic clamp 15 is formed on the excitation clamp 14, and limiting protrusions 142 are provided on the upper and lower sides of the closing groove 141, and a limiting groove 151 which cooperates with the limiting protrusion 142 is provided on the outer side of the hemostatic clamp 15.

[0017] The above-mentioned curved outer sleeve has an overall curved structure, and multiple flexible push rods are connected end to end in the curved section, the excitation clamp is located in the clamping section, and the hemostatic clamp is located at the end of the clamping section. When performing a closing operation, the opened hemostatic clamp is first moved to the blood vessel / tissue, and then the flexible push rod is pushed. Each flexible push rod acts in turn to move in the curved section and push the excitation clamp, and the excitation clamp moves toward the hemostatic clamp until the hemostatic clamp is completely squeezed into the closing groove, thereby achieving closed clamping of the blood vessel / tissue. During the movement of the excitation clamp, the limiting protrusions on the upper and lower sides of the closing groove move in the limiting groove outside the hemostatic clamp to ensure that the hemostatic clamp enters the closing groove smoothly, and the closed clamping of the blood vessel / tissue is achieved by limiting the hemostatic clamp by the excitation clamp.

[0018] like Figure 2-3 As shown, the front and rear ends of the flexible push rod 13 are respectively provided with an acute-angle end 132 and a matching groove 133 matching with the other acute-angle end 132, the matching groove 133 is opened up and down, and the flexible push rod 13 is provided with an outer protrusion 131 on both sides, and the inner sides of the bending section 11 are provided with strip grooves 111 matching with the outer protrusion 131, and the upper and lower sides of the flexible push rod 13 are formed with limiting portions 134, and the upper and lower sides of the bending section 11 are respectively provided with accommodating grooves 112 for accommodating the limiting portion 134, and the top of the accommodating groove 112 on the upper side of the bending section 11 is provided with a slot 113, and the upper side of the flexible push rod 13 is provided with a stop block 135 inclined toward the limiting portion 134, and the highest point of the stop block 135 protrudes from the slot 113.

[0019] The above-mentioned flexible push rod is made of PC plastic, is flexible, and can adapt to the curved structure of the curved jacket. One end of the flexible push rod is set as an acute-angle end, and two inclined surfaces are set up and down. The other end of the flexible push rod is set as an acute-angle matching groove, and the two inclined surfaces are set up and down. When the flexible push rods are connected end to end, the angle line of the acute-angle ends of two adjacent flexible push rods contacts the angle line of the matching groove, and the angle of the matching groove is greater than the angle of the acute-angle end, so that each flexible push rod can move relatively, reducing the contact area between the two adjacent flexible push rods, and increasing the flexibility of the flexible push rod to promote adaptation to the curved structure of the curved jacket.

[0020] When the above-mentioned flexible push rod is installed on the inner side of the bending section, the protrusions on both sides of the flexible push rod are located in the strip groove of the bending section, and a gap is provided between the protrusions and the strip groove, the limiting parts on the upper and lower sides of the flexible push rod are located in the accommodating groove, and a gap is provided between the limiting parts and the accommodating groove, and at the same time, the stop block is located in the accommodating groove, when the flexible push rod moves inside the curved sleeve, the stop block will pass through the slot, and the inclined stop block can maintain the push on the excitation clamp, and when moving in the reverse direction, the stop block will enter the slot and be blocked by the slot, so that it cannot move back, thereby realizing the stop function.

Claims

1. A curved excitation closing clamp, characterized in that: The invention comprises a curved outer sleeve (1), wherein the curved outer sleeve (1) comprises a curved section (11) and a clamping section (12) which are connected to each other internally, wherein a plurality of flexible push rods (13) which are connected end to end in sequence are arranged inside the curved section (11), wherein a movable excitation clamp (14) and a hemostatic clamp (15) which is connected to the end of the clamping section (12) are arranged inside the clamping section (12), wherein the end of the flexible push rod (13) abuts against the end of the excitation clamp (14), and the flexible push rod (13) can push the excitation clamp (14) to close the hemostatic clamp (15) which clamps the blood vessel / tissue.

2. The curved activation closure clip according to claim 1, characterized in that: The front and rear ends of the flexible push rod (13) are respectively provided with an acute-angle end (132) and a matching groove (133) matching with the acute-angle end (132) of an adjacent flexible push rod (13), and the matching groove (133) is opened up and down.

3. The curved activation closure clip according to claim 1, characterized in that: The flexible push rod (13) is provided with outer protrusions (131) on both sides, the curved section (11) is provided with strip grooves (111) on both sides thereof that cooperate with the outer protrusions (131), the flexible push rod (13) is formed with limit portions (134) on the upper and lower sides thereof, and the curved section (11) is provided with receiving grooves (112) on the upper and lower sides thereof that receive the limit portions (134).

4. The curved activation closure clip according to claim 3, characterized in that: A slot (113) is provided at the top of the receiving groove (112) on the upper side of the bending section (11), and a stop block (135) inclined toward the limiting portion (134) is provided on the upper side of the flexible push rod (13), wherein the highest point of the stop block (135) protrudes from the slot (113).

5. The curved activation closure clip according to claim 1, characterized in that: The excitation clip (14) is formed with a closing groove (141) opening toward the hemostatic clip (15), the closing groove (141) is provided with limiting convex parts (142) on the upper and lower sides, and the hemostatic clip (15) is provided with a limiting groove (151) cooperating with the limiting convex part (142) on the outer side.

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