Clamp device capable of being opened and closed repeatedly

Abstract

The utility model discloses a clamp device capable of being opened and closed repeatedly. The clamp device comprises a handle, a finger ring and a clamp ring, wherein the finger ring is rotatably connected with one end of the handle; the clamp ring is sleeved on the handle and is slidably connected with the handle; the spring tube fixing buckle is rotatably connected with the handle; the sheath spring tube is connected with the spring tube fixing buckle; the bourdon tube end sleeve is connected with the sheath bourdon tube; the locking connecting piece is arranged in the clamping pipe and connected with the clamping pipe in a sliding mode, and the clamping arm is connected with the locking connecting piece. One end of the steel wire rope is connected with the forceps ring, and the other end of the steel wire rope sequentially penetrates through the handle, the spring fixing buckle, the outer sheath spring tube, the spring tube end sleeve and the clamping tube and is connected with the locking connecting piece. The utility model provides a brand-new clamping, locking and releasing structure. By changing internal components of the clamp device, a product can be easily locked and successfully released, the releasing force is small, and the rotary thumb ring is arranged, so that the rotation performance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a clamp device which can be opened and closed repeatedly. Background Art

[0002] The clip device is used in conjunction with an endoscope to place a clip in the digestive tract. The clip is used for marking under the endoscope and for hemostasis of digestive tract tissue. The working principle of the clip device is physical clamping, which will not cause coagulation, degeneration or necrosis of mucosal tissue. After treatment with the clip device, the local tissue forms new granulomas through an inflammatory process, which then fall off on their own and are excreted from the body through the digestive tract.

[0003] Similar products on the market currently include those with relatively simple structures but can only be opened and closed once; those that can be opened and closed repeatedly but have relatively complex structures, and the clamps are prone to falling off after the clamp device is released, causing product failure; there are also products that cannot be successfully released after clamping and require surgical removal; since the direction of the wound at the lesion site is not fixed, the angle of the clamp device needs to be adjusted at any time. Existing products on the market cannot be rotated during use, and the lesion site cannot be accurately located, which brings certain difficulties and risks to both doctors and patients.

[0004] In response to the above problems, it is urgent to improve the convenience of doctors' clinical operations and the improvement of patients' clinical experience. Utility Model Content

[0005] In view of this, an object of the present invention is to provide a clamp device that can be opened and closed repeatedly.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A re-openable and re-closable clip device, comprising:

[0008] A handle, a finger ring rotatably connected to one end of the handle, and a pliers ring sleeved on the handle and slidably connected to the handle;

[0009] A spring fixing buckle, wherein the spring fixing buckle is rotatably connected to the handle;

[0010] An outer sheath spring tube, the outer sheath spring tube is connected to the spring fixing buckle;

[0011] A spring tube end sleeve, the spring tube end sleeve is connected to the outer sheath spring tube;

[0012] A clamping tube, a locking connector disposed inside the clamping tube and slidably connected to the clamping tube, and a clamping arm connected to the locking connector;

[0013] A steel wire rope, one end of which is connected to the clamp ring, and the other end of which passes through the handle, the spring fixing buckle, the outer sheath spring tube, the spring tube end sleeve, the clamp tube and is connected to the locking connector.

[0014] The above-mentioned re-openable and re-closable clamp device, wherein the distal end of the spring tube end sleeve is provided with a rotating clamp ring.

[0015] In the above-mentioned repeatedly openable and closable clamp device, the distal end of the rotating clamp ring has a tapered portion, and the distal end of the rotating clamp ring is operably disposed inside the clamp tube.

[0016] The above-mentioned repeatedly openable and closable clip device, wherein the proximal end of the locking connector is provided with a bell-mouth structure matching the shape of the tapered portion.

[0017] In the above-mentioned re-openable and re-closable clamp device, an annular locking groove is formed on the outer wall of the locking connector, and the interior of the clamp tube protrudes inward to form an annular locking block, which matches the locking groove.

[0018] The above-mentioned re-openable and re-closable clamp device, wherein the other end of the steel wire rope is connected to the locking connector via a connecting structure, wherein the connecting structure comprises:

[0019] A clamp arm connecting pin, one end of which is connected to the locking connector;

[0020] A connecting pipe, the other end of the steel wire rope is connected to the inside of the connecting pipe, and the other end of the clamp arm connecting pin is connected to the inside of the connecting pipe.

[0021] The above-mentioned repeatedly openable and closable clip device, wherein a spring is provided inside the outer sheath spring tube.

[0022] The above-mentioned repeatedly openable and closable clamp device, wherein a wire rope fixing piece is provided inside the clamp ring, and the wire rope is fixed to the wire rope fixing piece by crimping.

[0023] The above-mentioned repeatedly openable and closable clamp device, wherein a rotation limiting structure is provided between the handle and the clamp ring.

[0024] The above-mentioned repeatedly openable and closable clamp device, wherein the clamp ring comprises a first part and a second part, and the first part is snap-connected with the second part.

[0025] Due to the adoption of the above technology, the utility model has the following positive effects compared with the prior art:

[0026] (1) The utility model provides a new clamping, locking and releasing structure; by changing the internal components of the clamp device, the product can be easily locked and successfully released with a small release force, and is equipped with a rotatable thumb ring with good rotation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the repeatedly openable and closable clip device of the utility model.

[0028] Figure 2 It is a cross-sectional schematic diagram of the repeatedly openable and closable clamp device of the utility model.

[0029] Figure 3 It is a schematic diagram of a clamp ring of the clamp device that can be opened and closed repeatedly according to the utility model.

[0030] Figure 4 It is a three-dimensional schematic diagram of the repeatedly openable and closable clip device of the utility model.

[0031] Figure 5 It is a schematic diagram of the closed state of the repeatedly openable and closable clip device of the utility model.

[0032] In the accompanying drawings: 1. handle; 2. finger ring; 3. pliers ring; 31. first part; 32. second part; 33. wire rope fixing piece; 4. spring fixing buckle; 5. outer sheath spring tube; 6. spring tube end sleeve; 61. rotating clamp; 7. clamp tube; 71. locking block; 8. locking connector; 81. locking groove; 9. clamp arm; 10. wire rope; 101. clamp arm connecting pin; 102. connecting tube. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “inside”, “outside”, “front”, “back”, “lateral” and “vertical” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device or component referred to must have a specific direction and therefore should not be understood as a limitation on the present invention.

[0035] It should be specially explained that the terms “horizontal” and “vertical” in the present invention are used to illustrate a rough positional relationship, rather than a strict “horizontal plane” or “vertical plane”.

[0036] See also Figures 1 to 5 As shown, a preferred embodiment of a re-openable and reclosable clamp device is shown, comprising: a handle 1, a finger ring 2 rotatably connected to one end of the handle 1, and a clamp ring 3 sleeved on the handle 1 and slidably connected to the handle 1.

[0037] Further, as a preferred embodiment, it also includes: a spring fixing buckle 4, an outer sheath spring tube 5, and a spring tube end sleeve 6, the spring fixing buckle 4 is rotatably connected to the handle 1; the outer sheath spring tube 5 is connected to the spring fixing buckle 4; the spring tube end sleeve 6 is connected to the outer sheath spring tube 5.

[0038] Furthermore, as a preferred embodiment, it also includes: a clamping tube 7, a locking connector 8 disposed inside the clamping tube 7 and slidably connected to the clamping tube 7, and a clamping arm 9 connected to the locking connector 8.

[0039] Furthermore, as a preferred embodiment, it also includes: a wire rope 10, one end of the wire rope 10 is connected to the pliers ring 3, and the other end of the wire rope 10 passes through the handle 1, the spring fixing buckle 4, the outer sheath spring tube 5, the spring tube end sleeve 6, the clamp tube 7 in sequence and is connected to the locking connector 8.

[0040] Furthermore, as a preferred embodiment, a rotating clamp 61 is provided at the distal end of the spring tube end sleeve 6 .

[0041] Specifically, the rotating clamp ring 61 is initially disposed inside the clamp tube 7 , and the rotating clamp ring 61 can be separated from the clamp tube 7 by pulling the wire rope 10 with force.

[0042] Further, as a preferred embodiment, the distal end of the rotating clamp ring 61 has a tapered portion, and the distal end of the rotating clamp ring 61 is operably disposed inside the clamp tube 7 .

[0043] Further, as a preferred embodiment, the proximal end of the locking connector 8 is provided with a bell-mouth structure matching the shape of the conical portion of the rotating clamp 61 .

[0044] Further, as a preferred embodiment, an annular locking groove 81 is formed on the outer wall of the locking connector 8 , and an annular locking block 71 is formed by protruding inwardly from the inside of the clamp tube 7 , and the locking block 71 matches the locking groove 81 .

[0045] Specifically, when the locking block 71 does not enter the locking groove 81, the clamp arm 9 can move inside the jacket to open or close. When the locking block 71 enters the locking groove 81, the position of the clamp arm 9 is restricted to maintain a closed state.

[0046] Further, as a preferred embodiment, the other end of the steel wire rope 10 is connected to the locking connector 8 via a connecting structure, wherein the connecting structure includes:

[0047] A clamp arm connecting pin 101, one end of which is connected to the locking connector 8;

[0048] The connecting tube 102 , the other end of the wire rope 10 is connected to the inside of the connecting tube 102 , and the other end of the clamp arm connecting pin 101 is connected to the inside of the connecting tube 102 .

[0049] Further, as a preferred embodiment, a spring is provided inside the outer sheath spring tube 5 .

[0050] Further, as a preferred embodiment, a wire rope fixing piece 33 is provided inside the clamp ring 3, and the wire rope 10 is fixed to the wire rope fixing piece 33 by crimping.

[0051] Furthermore, as a preferred embodiment, a rotation limiting structure is provided between the handle 1 and the pliers ring 3 .

[0052] Specifically, the handle 1 and the pliers ring 3 are slidable but not rotatable.

[0053] More specifically, the handle 1 includes a first rod-shaped structure 11 and a second rod-shaped structure 12 , and the first rod-shaped structure 11 and the second rod-shaped structure 12 respectively penetrate two holes on the clamp ring 3 to achieve the above-mentioned sliding connection and limit the relative rotation therebetween.

[0054] More specifically, the steel wire rope 10 is located between the first rod-shaped structure 11 and the second rod-shaped structure 12 .

[0055] Further, as a preferred embodiment, the pliers ring 3 includes a first portion 31 and a second portion 32 , and the first portion 31 is snap-connected with the second portion 32 .

[0056] Specifically, the first part 31 and the second part 32 are left-right split structures, so that the pliers ring 3 can be assembled onto the handle 2 .

[0057] Specifically, when the utility model is in use, the operating physician takes out the product of the utility model from the inner package, holds the outer sheath spring tube 5 with one hand, passes the thumb of the other hand through the circular ring hole of the finger ring 2, and clamps the clamp ring 3 with the index finger and the middle finger, and gently pulls the clamp ring 3 backward to retract the clamp arm 9 into the clamp tube 7, and then slowly inserts the clamp arm 9 through the clamp opening of the endoscope. At this time, the clamp ring 3 must be kept from being pushed forward until the product of the utility model is delivered to the diseased tissue of the human body.

[0058] Furthermore, by operating the front end of the endoscope, the diseased tissue can be accurately found, and then the thumb of one hand is passed through the circular hole of the finger ring 2, and the other hand slightly rotates the handle 1 or the clamp ring 3, so that the clamp arm 9 of the product of the utility model can be rotated until it is facing the wound that needs to be clamped.

[0059] Furthermore, when aiming at the tissue to be clamped, the clamp ring 3 needs to be pushed forward to open the clamp arms 9. If clamping is required, the clamp ring 3 needs to be pulled backward with force to close and release the clamp arms 9.

[0060] Furthermore, the release process includes: the clamp arm 9 is first retracted into the clamp tube 7, and the clamp ring 3 is continuously pulled, the locking connector 8 moves backward, and the locking block 71 of the clamp tube 7 is pulled in, so that the clamp arm 9 can be locked. While pulling the clamp ring 3, the inclined bell mouth at the rear end of the locking connector 8 will compress the front end of the rotating clamp ring 61, so that the rotating clamp ring 61 can be separated from the clamp tube 7, and then continue to pull backward to achieve the separation of the clamp arm connecting pin 101 and the locking connector 8, and the release process of the entire clamp can be completed.

[0061] Furthermore, after the clamp arm 9 is released, the outer sheath spring tube 5 needs to be held and slowly pulled out from the endoscope clamp channel to complete the clamping operation.

[0062] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A re-openable and re-closable clip device, characterized in that: include: A handle, a finger ring rotatably connected to one end of the handle, and a pliers ring sleeved on the handle and slidably connected to the handle; A spring fixing buckle, wherein the spring fixing buckle is rotatably connected to the handle; An outer sheath spring tube, the outer sheath spring tube is connected to the spring fixing buckle; A spring tube end sleeve, the spring tube end sleeve is connected to the outer sheath spring tube; A clamping tube, a locking connector disposed inside the clamping tube and slidably connected to the clamping tube, and a clamping arm connected to the locking connector; A steel wire rope, one end of which is connected to the clamp ring, and the other end of which passes through the handle, the spring fixing buckle, the outer sheath spring tube, the spring tube end sleeve, the clamp tube and is connected to the locking connector.

2. The re-openable and reclosable clip device according to claim 1, characterized in that: A rotating clamp ring is arranged at the distal end of the spring tube end sleeve.

3. The re-openable and reclosable clip device according to claim 2, characterized in that: The distal end of the rotating clamp ring has a tapered portion, and the distal end of the rotating clamp ring can be operably arranged inside the clamp tube.

4. The re-openable and reclosable clip device according to claim 3, characterized in that: The proximal end of the locking connector is provided with a bell-mouth structure matching the shape of the tapered portion.

5. The re-openable and reclosable clip device according to claim 1, characterized in that: An annular locking groove is formed on the outer wall of the locking connector, and an annular locking block is formed by protruding inwards inside the clamping tube, and the locking block matches the locking groove.

6. The re-openable and reclosable clip device according to claim 1, characterized in that: The other end of the steel wire rope is connected to the locking connector via a connecting structure, wherein the connecting structure comprises: A clamp arm connecting pin, one end of which is connected to the locking connector; A connecting pipe, the other end of the steel wire rope is connected to the inside of the connecting pipe, and the other end of the clamp arm connecting pin is connected to the inside of the connecting pipe.

7. The re-openable and reclosable clip device according to claim 1, characterized in that: A spring is arranged inside the outer sheath spring tube.

8. The re-openable and reclosable clip device according to claim 1, characterized in that: A wire rope fixing piece is arranged inside the clamp ring, and the wire rope is fixed to the wire rope fixing piece by crimping.

9. The re-openable and reclosable clip device according to claim 1, characterized in that: A rotation limiting structure is provided between the handle and the pliers ring.

10. The re-openable and reclosable clip device according to claim 1, characterized in that: The pliers ring comprises a first part and a second part, wherein the first part is snap-connected with the second part.

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