A new clip device for endoscope

Abstract

The application provides a novel endoscope clip device, and relates to the field of medical instruments.The device comprises two sets of clip assemblies, a clip base, a clip support and a locking member.The two sets of clip assemblies are connected to the clip base, the clip base is connected to the locking member, the locking member is located in the clip support, and the locking member drives the clip base to move in the clip support to drive the two sets of clip assemblies to close or open.When the two sets of clip assemblies are closed, the locking member and the clip base can cooperate with the clip support to lock the two sets of clip assemblies in the closed state.The device has simple structure and reliable performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a novel endoscope clip device. BACKGROUND

[0002] The endoscope clip device is a medical device for placing a clip in the digestive tract to mark, suture and hemostasis of the digestive tract tissue under the endoscope. The existing endoscope clip device must use multiple hemostatic clips for suture when the wound area of the digestive tract tissue is large and irregular, which makes the operation of the doctor complicated and cannot quickly hemostasis the wound site in a short time. SUMMARY

[0003] In order to overcome the above problems in the prior art, the present application provides a novel endoscope clip device.

[0004] The specific technical scheme is as follows:

[0005] A novel endoscope clip device, comprising two groups of opposite clip assembly, clip base, locking piece, positioning piece, pull rod, clip support, spring bushing and spring tube, the two groups of opposite clip assembly comprising first clip, second clip, third clip and fourth clip, the first clip and the second clip are the same structure and are oppositely arranged, the third clip and the fourth clip are the same structure and are oppositely arranged, the tail of the first clip, the second clip, the third clip and the fourth clip is fixedly connected with high elastic steel wire, the two groups of opposite clip assembly are rotationally connected with the clip base, the clip base is connected with the locking piece, the locking piece is located in the clip support, the locking piece moves in the clip support to drive the clip base to drive the two groups of opposite clip assembly to close or open, the locking piece is connected with the pull rod, the positioning piece is sleeved on the pull rod, one end of the spring bushing is fixedly connected with the spring tube, and the other end is sleeved in the clip support.

[0006] Preferably, four clip pin hole holes are arranged at the upper end of the clip base, the four clip pin hole holes are respectively arranged corresponding to the tail holes of the first clip, the second clip, the third clip and the fourth clip, the tail holes of the first clip, the second clip, the third clip and the fourth clip are rotationally connected with the clip base through the clip pin arranged in the clip pin hole hole, two limiting surfaces are arranged in the middle of the clip base, which are the upper limiting surface of the clip base and the lower limiting surface of the clip base, the limiting surface and the clip support cooperate to control the up and down stroke of the clip base to drive the two groups of opposite clip assembly to close or open, the base pin hole hole is arranged at the bottom of the clip base, and the clip base is connected with the locking piece through the moving pin shaft arranged in the base pin hole hole.

[0007] Preferably, the upper part of the locking piece is provided with a moving pin shaft hole, the upper part of the moving pin shaft hole is provided with a limiting point, the moving pin shaft hole and the limiting point are arranged in the shape of a Chinese character, the moving pin shaft hole is opposite to the base pin shaft hole, the two sides of the locking piece are provided with elastically deformable pawls, the elastically deformable pawls are opposite to the clamping parts of the clamping piece support, the lower part of the locking piece is provided with a sliding pin shaft hole, the lower part of the sliding pin shaft hole is provided with a sliding groove, the sliding pin shaft hole is provided with a sliding lock shaft, the locking piece is connected with the pull rod through the sliding lock shaft, and the locking piece is integrally formed.

[0008] Preferably, the upper part of the clamping piece support is provided with limiting surfaces matched with the clamping piece base, namely an upper limiting surface of the clamping piece support and a lower limiting surface of the clamping piece support, the middle part of the clamping piece support is provided with clamping parts matched with the locking piece to drive two groups of opposite clamping piece assemblies to be closed or opened, and the lower part of the clamping piece support is provided with two opposite clamping piece support positioning holes connected with the positioning piece.

[0009] Preferably, the positioning piece comprises a positioning ring, positioning strips and a positioning sheet, the positioning strips are opposite arranged on the two sides of the positioning ring, the positioning sheet is arranged on the top end of the positioning strip, the positioning piece is integrally formed, the positioning ring is sleeved on the pull rod, and the positioning sheet passes through the positioning hole on the clamping piece support and is connected with the clamping piece support.

[0010] Preferably, the spring bush is provided with two opposite spring bush positioning holes, the spring bush positioning holes are opposite to the clamping piece support positioning holes, and the spring bush positioning holes are provided with the positioning sheet on the positioning piece.

[0011] Compared with the prior art, the present application has the following beneficial effects:

[0012] (1) The novel clamping device for an endoscope provided by the present application is provided with two groups of clamping piece assemblies, is more firm in clamping the tissue with a larger wound area, the locking piece in the present application is located in the clamping piece support, the locking piece can move in the clamping piece support to drive the clamping piece base and drive two groups of opposite clamping pieces to be closed or opened, when the locking piece moves away from the assembly clamping piece, the locking piece drives the clamping piece base to cooperate with the clamping piece support, so that two groups of opposite clamping pieces are retracted into the clamping piece support, and the clamping pieces are in a closed state, when the locking piece moves towards the clamping piece assembly, the locking piece drives the clamping piece base to cooperate with the clamping piece support, so that two groups of clamping pieces are stretched out of the clamping piece support, and the high-elastic steel wires at the tail parts of the clamping pieces drive two groups of opposite clamping pieces to be in an opened state, so that the clamping device not only has a simple structure, but also has reliable performance. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of an opened state of the novel clamping device for an endoscope.

[0014] Figure 2 Fig. 3 is a structural schematic diagram of a closed state of a new type of clip device for an endoscope according to the present application;

[0015] Figure 3 Fig. 4 is a structural schematic diagram of a clip base in a new type of clip device for an endoscope according to the present application;

[0016] Figure 4 Fig. 5 is a structural schematic diagram of an upper limiting surface of a clip holder in a new type of clip device for an endoscope according to the present application;

[0017] Figure 5 Fig. 6 is a structural schematic diagram of a lower limiting surface of a clip holder in a new type of clip device for an endoscope according to the present application;

[0018] Figure 6 Fig. 7 is a structural schematic diagram of a locking member in a new type of clip device for an endoscope according to the present application;

[0019] Figure 7 Fig. 8 is a structural schematic diagram of a positioning member in a new type of clip device for an endoscope according to the present application;

[0020] Figure 8 Fig. 9 is a structural schematic diagram of an unhooked state of a new type of clip device for an endoscope according to the present application;

[0021] Figure 9 Fig. 10 is a structural schematic diagram of a clip in a new type of clip device for an endoscope according to the present application.

[0022] In the figure, 1 is a clip assembly, 11 is a first clip, 12 is a second clip, 13 is a third clip, 14 is a fourth clip, 15 is a high-elastic steel wire, 16 is a moving pin shaft, 17 is a sliding pin shaft, 18 is a tail hole, 2 is a clip holder, 21 is an upper limiting surface of the clip holder, 22 is a lower limiting surface of the clip holder, 23 is an annular boss, 24 is a clamping portion, 25 is a positioning hole of the clip holder, 3 is a rotating pin shaft, 4 is a clip base, 41 is a clip pin shaft hole, 42 is an upper limiting surface of the clip base, 43 is a lower limiting surface of the clip base, 44 is a base pin shaft hole, 5 is a locking member, 51 is a moving pin shaft hole, 52 is a moving channel, 53 is a limiting point, 54 is a pawl, 55 is a sliding lock shaft hole, 56 is a sliding groove, 6 is a pull rod, 8 is a positioning member, 81 is a positioning ring, 82 is a positioning strip, 83 is a positioning piece, 9 is a spring bushing, 91 is a spring bushing positioning hole, and 10 is a spring tube. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation of the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0024] This application provides a novel clamp device for endoscopes, such as... Figure 1 and 2 As shown, the device includes two sets of opposing clamping assemblies 1, clamping base 4, locking element 5, positioning element 8, pull rod 6, and clamping bracket 2. The two sets of opposing clamping assemblies 1 include a first clamping piece 11, a second clamping piece 12, a third clamping piece 13, and a fourth clamping piece 14. The first clamping piece 11 and the second clamping piece 12 have the same structure and are arranged opposite each other. The third clamping piece 13 and the fourth clamping piece 14 have the same structure and are arranged opposite each other. The tail ends of the first clamping piece 11, the second clamping piece 12, the third clamping piece 13, and the fourth clamping piece 14 are all fixedly connected with high-elastic steel wire 15. The two sets of opposing clamping assemblies 1 are rotatably connected to the clamping base 4. The clamping base 4 is connected to the locking element 5. The locking element 5 is located inside the clamping bracket 2. The locking element 5 moves inside the clamping bracket 2 to drive the clamping base 4 and drive the two sets of opposing clamping assemblies 1 to close or open. The locking element 5 is connected to the pull rod 6. The positioning element 8 is sleeved in the pull rod 6.

[0025] like Figure 3 , 4 As shown in Figure 5, the upper end of the clamp base 4 is provided with four clamp pin holes 41. The four clamp pin holes 41 are respectively provided with the tail holes 18 of the first clamp 11, the second clamp 12, the third clamp 13 and the fourth clamp 14. The tail holes 18 of the first clamp 11, the second clamp 12, the third clamp 13 and the fourth clamp 14 are rotatably connected to the clamp base 4 through the rotating pins 3 provided in the clamp pin holes 41. The clamp base 4 is provided with two limiting surfaces in the middle, namely the upper limiting surface 42 and the lower limiting surface 43 of the clamp base. The limiting surfaces and the clamp bracket 2 cooperate to control the up and down stroke of the clamp base 4 to drive the two sets of opposite clamp assemblies 1 to close or open. The bottom of the clamp base 4 is provided with a base pin hole 44. The clamp base 4 is connected to the locking member 5 through the moving pin 16 provided in the base pin hole 44.

[0026] like Figure 4 and 5 As shown, the upper part of the clip bracket 2 is provided with an upper limit surface 21 and a lower limit surface 22 of the clip bracket that cooperate with the clip base 4. The middle part of the clip bracket 2 is provided with an annular boss 23 and a holding part 24 that cooperate with the locking member 5 to drive the two sets of opposing clip assemblies 1 to close or open. The lower part of the clip bracket 2 is provided with two opposing clip positioning holes 25, which are connected to the positioning member 8.

[0027] like Figure 6As shown, the upper part of the locking member 5 is provided with a movable pin hole 51, which corresponds to the base pin hole 44. A limiting point 53 is provided above the movable pin hole 51, and the movable pin hole 51 and the limiting point 53 are arranged in a "U" shape. Elastically deformable pawls 54 are provided on both sides of the locking member 5, and the elastically deformable pawls 54 are arranged opposite to the clamping part 24 of the clamp bracket 2. The lower part of the locking member 5 is provided with a sliding pin hole 55, and a sliding groove 56 is provided below the sliding pin hole 55. A sliding locking shaft 17 is provided inside the sliding pin hole 55, and the locking member 5 is connected to the pull rod 6 through the sliding locking shaft 17. Furthermore, a limiting point 53 is provided above the movable pin hole 51, and the movable pin hole 51 and the limiting point 53 are arranged in a "U" shape. The locking member 5 is integrally formed. In this invention, the locking member 5 is located inside the clamp bracket 2. The locking member 5 can move within the clamp bracket 2 to drive the clamp base 4 and cause the two sets of opposing clamps to close or open. When the locking member 5 moves away from the clamp assembly 1, the locking member 5 drives the clamp base 4 to cooperate with the clamp bracket 2, causing the two sets of opposing clamps 1 to retract into the clamp bracket 2, and the clamps are in a closed state. When the locking member 5 moves closer to the clamp assembly 1, the locking member 5 drives the clamp base 4 to cooperate with the clamp bracket 2, causing the clamp assembly 1 to extend out of the clamp bracket 2, and the two sets of opposing clamps are driven to an open state by the high-elastic steel wire 15 at the tail of the clamp.

[0028] like Figure 7 As shown, the positioning component 8 includes a positioning ring 81, a positioning strip 82, and a positioning piece 83. The positioning strip 82 is positioned opposite each other on both sides of the positioning ring 81, and the positioning piece 83 is positioned at the top of the positioning strip 82. The positioning component 8 is integrally formed. The positioning ring 81 is sleeved in the pull rod 6, and the positioning piece 83 passes through the positioning hole 7 on the clamping bracket 2 and is connected to the clamping bracket 2. The positioning piece 83 of the positioning component 8 is snapped into the clamping bracket positioning hole 25 of the clamping bracket 2.

[0029] like Figure 8 As shown, one end of the spring bushing 9 is fixedly connected to the spring tube 10, and the other end is sleeved inside the clamp bracket 2. The spring bushing 9 is provided with two opposing spring bushing positioning holes 91. The spring bushing positioning holes 91 and the clamp bracket positioning holes 25 are arranged opposite to each other. The positioning piece 83 on the positioning member 8 passes through both the spring bushing positioning hole 91 and the clamp bracket positioning hole 25, so that the clamp bracket 2 is connected to the spring tube 10.

[0030] The working principle and process are as follows:

[0031] 1. For example Figure 1 As shown, the two sets of opposing clips are in the open state.

[0032] Pushing the lever 6 towards the clamping plate assembly 1, the lever 6 generates a pushing force on the locking member 5 through the sliding pin 17, and the locking member 5 generates a pushing force on the clamping plate base 4 through the moving pin 16. At this time, the clamping plate base 4 extends out of the clamping plate bracket 2 under the action of the pushing force. Since the clamping plate assembly 1 and the clamping plate base 4 are rotatably connected by the rotating pin 3, the tail of the clamping plate assembly 1 extends out of the clamping plate bracket 2 under the action of the clamping plate base 4, and under the elastic force of the high-elastic steel wire 15, the first clamping plate 11 and the second clamping plate 12, the third clamping plate 13 and the fourth clamping plate 14 are in the open state. When the lower limiting surface 43 of the clamping plate base abuts against the lower limiting surface 22 of the clamping plate bracket, the first clamping plate 11 and the second clamping plate 12, the third clamping plate 13 and the fourth clamping plate 14 are in the maximum open state.

[0033] 2. For example Figure 2 As shown, the two sets of opposing clamps are in a closed state.

[0034] Pulling the lever 6 away from the clamping plate assembly 1 causes the lever 6 to exert a pulling force on the locking member 5 via the sliding pin 17. The locking member 5 then exerts a pulling force on the clamping plate base 4 via the moving pin 16. Under this pulling force, the clamping plate base 4 retracts into the clamping plate bracket 2. Since the clamping plate assembly 1 and the clamping plate base 4 are rotatably connected via the rotating pin 3, the tail of the clamping plate assembly 1 retracts into the clamping plate bracket 2 under the drive of the clamping plate base 4, causing the first clamping plate 11 to move closer to the second clamping plate 12 and the third clamping plate 13 to move closer to the fourth clamping plate 14. When the upper limit surface 42 of the clamping plate base abuts against the upper limit surface 21 of the clamping plate bracket, the first clamping plate 11 and the second clamping plate 12, and the third clamping plate 13 and the fourth clamping plate 14 are in a closed state.

[0035] 3. The two sets of opposing clamps are locked in the closed state.

[0036] With the two sets of opposing clamps already in a closed state, increasing the pulling force on the pull rod 6 will cause the locking member 5 to move under the pulling force. However, since the two sets of opposing clamps are already closed, the moving pin 16 will not move further due to the resistance of the moving channel 52. When the pulling force increases to a certain extent, the moving pin 16 will compress the moving channel 52, causing the moving channel 52 to deform. This will cause the moving pin 16 to move from the moving channel 52 to the top of the moving channel and abut against the limiting point 53. At the same time, the pawl 54 of the locking member 5 will be pressed by the annular boss 23. The pawl 54 will move closer to the main body through elastic deformation, allowing the locking member 5 to pass over the annular boss 23. After passing over the annular boss 23, the pawl 54 will return to its shape, spring into the locking part, and then lock into the locking part 24, preventing the locking member 5 from moving. This will prevent the clamp base 4 from moving within the clamp bracket 2, ultimately locking the first clamp 11 and the second clamp 12, and the third clamp 13 and the fourth clamp 14 into a closed state.

[0037] 4. For exampleFigure 8 The clip device is uncoupled from the excess instruments

[0038] Continue to increase the pulling force on the pull rod 6, when the pulling force is large enough, the sliding pin 17 exerts pressure on the sliding groove 56, causing the sliding groove 56 to deform, so that the sliding pin 17 passes through the sliding groove 56 and separates from the locking piece 5, at the same time, the pull rod 6 drives the positioning piece 8 to move towards the spring tube 10, the positioning piece 83 deforms due to force, and is separated from the positioning hole 25 of the clip bracket 2 and the positioning hole 91 of the spring bushing 9, so that the pull rod 6, the sliding pin 17, the positioning piece 8 and the locking piece 5 are separated, and the spring bushing 9 and the clip bracket 2 are separated. The new clip device includes the clip assembly 1, the clip bracket 2, the clip base 4, the locking piece 5, the rotating pin 3 and the moving pin 16 remaining in the patient, and the excess instruments include the pull rod 6, the positioning piece 8, the spring bushing 9, the sliding pin 17 and the spring tube 10 being taken out from the endoscope forceps, and the new clip device is uncoupled from the excess instruments.

[0039] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. A novel clamp device for endoscopes, characterized in that: It includes two sets of opposing clip assemblies, a clip base, a locking member, a positioning member, a pull rod, a clip bracket, a spring bushing and a spring tube. The two sets of opposing clip assemblies include a first clip, a second clip, a third clip and a fourth clip. The first clip and the second clip have the same structure and are arranged oppositely. The third clip and the fourth clip have the same structure and are arranged oppositely. High-elastic steel wires are fixedly connected to the tails of the first clip, the second clip, the third clip and the fourth clip. The two sets of opposing clip assemblies are rotatably connected to the clip base. The clip base is connected to the locking member. The locking member is located inside the clip bracket and moves inside the clip bracket to drive the clip base to带动 the two sets of opposing clip assemblies to close or open. The locking member is connected to the pull rod. The positioning member is sleeved in the pull rod. One end of the spring bushing is fixedly connected to the spring tube, and the other end is sleeved inside the clip bracket.

2. The novel endoscope clamp device according to claim 1, characterized in that: Four clip pin holes are provided at the upper end of the clip base. The four clip pin holes are respectively corresponding to the tail holes of the first clip, the second clip, the third clip and the fourth clip. The tail holes of the first clip, the second clip, the third clip and the fourth clip are rotatably connected to the clip base through clip pins arranged in the clip pin holes. Two limiting surfaces are provided in the middle of the clip base, namely the upper limiting surface of the clip base and the lower limiting surface of the clip base. The limiting surfaces and the clip bracket cooperate to control the up and down stroke of the clip base to drive the two sets of opposing clip assemblies to close or open. A base pin hole is provided at the bottom of the clip base. The clip base is connected to the locking member through a moving pin arranged in the base pin hole.

3. The novel endoscope clamp device according to claim 2, characterized in that: A moving pin hole is provided at the upper part of the locking member. A limiting point is provided above the moving pin hole. The moving pin hole and the limiting point are arranged in a "个" shape. The moving pin hole is arranged oppositely to the base pin hole. Elastic claws are provided on both sides of the locking member. The elastic claws are arranged oppositely to the clamping parts of the clip bracket. A sliding pin hole is provided at the lower part of the locking member. A chute is provided below the sliding pin hole. A sliding locking shaft is arranged in the sliding pin hole. The locking member is connected to the pull rod through the sliding locking shaft. The locking member is integrally formed.

4. The novel endoscope clamp device according to claim 3, characterized in that: Upper limiting surfaces that cooperate with the clip base are provided at the upper part of the clip bracket, namely the upper limiting surface of the clip bracket and the lower limiting surface of the clip bracket. A clamping part that cooperates with the locking member is provided in the middle of the clip bracket to drive the two sets of opposing clip assemblies to close or open. Two opposing clip bracket positioning holes are provided at the lower part of the clip bracket. The clip bracket positioning holes are connected to the positioning member.

5. A novel clamp device for endoscopes according to claim 4, characterized in that: The positioning member includes a positioning ring, a positioning strip and a positioning piece. The positioning strips are arranged oppositely on both sides of the positioning ring. The positioning piece is arranged at the top of the positioning strip. The positioning member is integrally formed. The positioning ring is sleeved in the pull rod. The positioning piece passes through the positioning hole on the clip bracket and is connected to the clip bracket.

6. A novel clamp device for endoscopes according to claim 5, characterized in that: Two opposing spring bushing positioning holes are provided on the spring bushing. The spring bushing positioning holes are arranged oppositely to the clip bracket positioning holes. The positioning piece on the positioning member passes through the spring bushing positioning holes.

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