Device for taking out foreign matters in digestive tract of child

Abstract

The invention relates to the field of alimentary canal foreign body extraction, and discloses a child alimentary canal foreign body extraction device which comprises an ingress pipe, the ingress pipe is connected with a clamp, the clamp comprises a clamping rod hinged to the ingress pipe, the ingress pipe is vertically and slidably connected with a driving hopper and a sliding frame, the ingress pipe is transversely and slidably connected with a driving rod, and the clamping rod is hinged to the ingress pipe through the driving rod. The driving hopper is provided with an inclined driving groove, the end of the driving rod is slidably connected with the driving groove, the driving hopper slides up and down to drive the driving rod to slide transversely, the sliding frame and the driving hopper are provided with a first locking part and a second locking part respectively, and the first locking part and the second locking part are matched to be used for fixing the driving hopper. Through the interaction of the first locking part and the second locking part, the position of the driving bucket in the guide-in pipe can be fixed, the situation that the driving bucket continues to slide due to careless operation or too large resistance in the pulling-out process is prevented, and the clamping and taking-out device has the effect that foreign matter separation and secondary damage cannot be caused in the clamping and taking-out process.

Description

Technical Field

[0001] The invention relates to the technical field of digestive tract foreign body removal, and in particular to a device for removing foreign body from children's digestive tract. Background Art

[0002] The children's digestive tract foreign body removal device is mainly used to deal with foreign body problems in the digestive tract caused by accidental swallowing. Children are very curious and tend to put objects in their hands into their mouths. Foreign bodies that can get stuck in the digestive tract include stagnant foreign bodies, such as coins, button batteries, toy parts, etc., as well as sharp foreign bodies and long foreign bodies, such as needles, blades, fish bones, hairpins, metal bars, plastic tubes, etc. In addition, they also include spherical foreign bodies, such as nuclei, glass balls, etc. For these different foreign bodies, different clamps are usually required to clamp them. Biopsy forceps can be used to clamp spherical foreign bodies, rat-tooth crocodile forceps can be used to clamp sharp and long foreign bodies, and multi-claw forceps can be used to clamp spherical foreign bodies.

[0003] The Chinese invention patent with the authorization announcement number CN116763412A discloses a digestive tract foreign body extraction device, comprising an introduction tube, a clamp is installed at the end of the introduction tube, an adjustment tube is installed at the beginning of the introduction tube, an air inlet pipe, an air bag and a middle support plate are slidably arranged on the introduction tube, an air outlet pipe is installed on the middle support plate, an annular seat is slidably arranged in the adjustment tube, a pull rope is arranged on the annular seat, the annular seat comprises an inner ring part and an outer ring part, the outer ring part is hinged to an arc plate, a plurality of clamping grooves corresponding to the arc plate are opened on the outer ring of the adjustment tube, and the annular seat is limited by the clamping of the arc plate and the clamping groove, and a pulling and twisting device is arranged at the end of the adjustment tube, and the pulling and twisting device is connected to the annular seat by a spring, and the movement of the annular seat can be driven by the pulling and twisting device; the clamp is hinged at the end of the introduction tube, an L-shaped rod and a swing rod are hinged inside the introduction tube, the introduction tube is slidably connected to a rectangular plate, the rectangular plate is connected to the pull rope, the pull rope drives the rectangular plate to slide up and down, and the rectangular plate drives the swing rod and the L-shaped rod to slide, thereby driving the opening and closing of the clamp.

[0004] However, considering that the intestinal wall of children is thinner, in the prior art, when the removal device is placed into the digestive tract, the clamp is first inserted into the interior and is most likely to come into contact with the wall of the digestive tract. The clamp with a sharp end may touch the wall of the digestive tract or even scratch the inner wall. In addition, when the clamp is used to grasp the foreign body for removal, there is food residue and various digestive fluids inside the digestive tract, and the removal process also involves passing through the curved digestive tract. Therefore, the clamped foreign body encounters greater resistance when being removed. Unstable clamping may cause the foreign body to fall off, causing secondary injury. Summary of the invention

[0005] The present invention is intended to provide a device for removing foreign bodies from the digestive tract of children, so as to solve the problem that foreign bodies fall off when they are held and removed.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a foreign body removal device for children's digestive tract, including an introduction tube, the introduction tube is connected with a clamp, the clamp includes a clamp rod hinged to the introduction tube, the introduction tube is vertically slidably connected with a driving bucket and a sliding frame, and is laterally slidably connected with a driving rod, the clamp rod is hinged to the introduction tube through the driving rod, the driving bucket is provided with an inclined driving groove, the end of the driving rod is slidably connected to the driving groove, the driving bucket slides up and down to drive the driving rod to slide laterally, and the laterally sliding of the driving rod drives the clamp rod to rotate, the sliding frame is used to cover the clamp, the sliding frame and the driving bucket are respectively provided with a first locking part and a second locking part, and the first locking part and the second locking part cooperate to fix the driving bucket.

[0007] The beneficial effects of the present invention are as follows: when the driving bucket slides up and down, the driving groove drives the driving rod to slide horizontally in the introduction tube, and since the clamp rod is hinged to the introduction tube through the driving rod, the driving rod drives the clamp rod to rotate, thereby realizing the clamping and opening action of the clamp. This driving method is different from the prior art, in which the number of driving rods and driving grooves is selective. For conventional biopsy forceps and rat-tooth crocodile jaw forceps, only the driving method is changed, but for multi-claw forceps, the same method can be used to drive and clamp by adding driving rods and driving grooves; the structure in the prior art is only suitable for one clamp, and for hospitals, the foreign body removal device is disposable, so it is more expensive and requires mass production. The prior art produces one tube and one clamp, and the production speed is slow. The structural design in the present invention can eliminate the phenomenon of one tube and one clamp in production, and can be mass-produced at the same time. Several different clamps are suitable for the same introduction tube model, but the number of parts involved in installation is a problem. Therefore, compared with the prior art, the equipment investment and processes in mass production are reduced.

[0008] Since the function of the sliding frame is to cover the clamp, the sliding frame is slid to the position of covering the clamp before extending into the digestive tract, thereby preventing the clamp from directly piercing the digestive tract. After clamping the foreign body, the introduction tube is pulled outward. Due to the large resistance, the clamped foreign body will be separated from the clamp. Therefore, through the interaction of the first locking part and the second locking part, the position of the driving bucket in the introduction tube can be fixed to prevent the driving bucket from continuing to slide due to careless operation or too much resistance during the pulling process. While the sliding frame is locked with the driving bucket, the clamp is covered. Compared with the prior art, it can not only prevent the foreign body from escaping from the clamp but also wrap the foreign body, thereby achieving the purpose of not causing the foreign body to detach and secondary injury during the clamping and removal process.

[0009] Furthermore, a first coil spring and a second coil spring are installed at the top end of the introduction tube, the first coil spring is connected to a first pull rope, the first pull rope is connected to the sliding frame, the second coil spring is connected to a second pull rope, the second pull rope is connected to the driving bucket, and an adjustment cylinder is also installed at the top end of the introduction tube, the adjustment cylinder is slidably connected to a first adjustment member and a second adjustment member, and are respectively connected to the first pull rope and the second pull rope.

[0010] Furthermore, the introduction tube is provided with a guide groove, the sliding frame includes a guide block embedded in the guide groove, the guide block is rotatably connected to a retractable rod, the end of the retractable rod away from the guide block is connected to an outer cover plate, and the first locking portion is arranged on a side of the guide block close to the introduction tube.

[0011] Furthermore, the driving bucket is fixedly provided with a guide rod, the end of the guide rod is also embedded in the guide groove, the end of the guide rod corresponds to the guide block, and the second locking part is arranged at the end of the guide rod, and the second locking part corresponds to the first locking part.

[0012] Furthermore, the driving rod is radially slidably connected to the introduction tube, a tension spring is connected between the tube wall of the introduction tube and the driving rod, one end of the driving rod away from the tube wall of the introduction tube is fixedly connected to the driving seat, the driving groove is located between the driving seat and the driving rod, and the top end of the clamping rod is rotatably connected to the driving seat.

[0013] Furthermore, a mounting seat is rotatably arranged inside the introduction tube, and the mounting seat is coaxially arranged with the introduction tube. The clamp includes an articulated seat fixed to the mounting seat, the clamp rod is rotatably connected to the articulated seat, and the articulated seat is connected to a mounting screw, which is used to fix the articulated seat to the mounting seat.

[0014] Furthermore, the distance between the top end of the clamping rod and the hinge seat is smaller than the distance between the bottom end of the clamping rod and the hinge seat.

[0015] Furthermore, the end of the first pull rope is connected to the guide block for driving the sliding frame to slide, and the second pull rope is connected to the driving bucket for driving the driving bucket to slide.

[0016] Furthermore, a first spring is connected between the guide block and the introduction tube, and a second spring is connected between the guide rod and the introduction tube.

[0017] Furthermore, the guide block is arranged at an angle close to the side of the guide rod, the first locking part is arranged as a self-locking groove opened on the inclined surface of the guide block, the connection between the self-locking groove and the inclined surface of the guide block is arranged with a rounded corner, and the second locking part includes a self-locking head slidably connected to the end of the guide rod, and a self-locking spring connected between the self-locking head and the guide block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the cross-sectional structure of the end of the introduction tube according to an embodiment of the present invention;

[0019] Figure 2 For the embodiment of the present invention Figure 1A schematic diagram of the local structure of the sliding frame and the driving bucket at the middle A;

[0020] Figure 3 The end of the introduction tube of the embodiment of the present invention is Figure 1 Schematic diagram of cross-sectional structure with cross sections perpendicular to each other;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the top end of the introduction tube located at the adjustment cylinder according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the biopsy forceps according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the rat-tooth crocodile jaw forceps according to an embodiment of the present invention;

[0024] Figure 7 It is a schematic diagram of the cross-sectional structure of the multi-claw pliers according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] The figure marks in the drawings of the specification include: inlet tube 1, drive rod 11, tension spring 111, drive seat 112, first coil spring 12, first pull rope 121, second coil spring 13, second pull rope 131, adjustment cylinder 14, first adjustment member 141, second adjustment member 142, guide groove 15, mounting seat 16, drive bucket 2, drive groove 21, guide rod 22, second spring 221, self-locking head 222, self-locking spring 223, clamp 3, articulated seat 31, mounting screw 311, clamp rod 32, sliding frame 4, guide block 41, retractable rod 411, outer cover plate 412, first spring 413, self-locking groove 414.

[0027] Example

[0028] The embodiment is basically as follows Figure 1-7 As shown, the foreign body removal device for children's digestive tract, such as Figure 1-Figure 3As shown, it includes an introduction tube 1, the end of the introduction tube 1 is the insertion end, and the tube wall of the end of the introduction tube 1 is symmetrically provided with a guide groove 15, which penetrates the tube wall of the introduction tube 1 and connects the inside and the outside of the introduction tube 1. The introduction tube 1 is slidably connected to a driving bucket 2 inside the introduction tube 1 through the guide groove 15. The driving bucket 2 is set to be funnel-shaped, and the upper end opening of the funnel-shaped driving bucket 2 is larger than the lower end opening. Guide rods 22 are fixed on both sides of the upper end opening of the driving bucket 2. The guide rods 22 extend outward and are embedded in the guide groove 15 close to the inside of the introduction tube 1. The guide rods 22 are away from the driving bucket 2. A cavity is provided at the end of the moving bucket 2, in which a self-locking head 222 is slidably connected, and a self-locking spring 223 is connected between the self-locking head 222 and the guide rod 22. Under normal conditions, the self-locking spring 223 naturally extends and pushes the self-locking head 222 outward. After being pushed out, the self-locking head 222 is located on the side of the guide groove 15 close to the outside of the introduction pipe 1. The end of the self-locking head 222 is rounded, and a second spring 221 is vertically connected between the top of the guide rod 22 and the guide groove 15. The second spring 221 naturally extends in a natural state to push the driving bucket 2 to the lowest point that can be reached.

[0029] like Figure 1-Figure 3 As shown, a guide block 41 is slidably connected to one side of the guide groove 15 close to the outside of the introduction tube 1, and the guide block 41 is embedded in the guide groove 15. The guide block 41 includes a triangular plate-shaped part at the bottom and a rod-shaped part at the top for driving itself to slide. The guide groove 15 is divided into two upper and lower sliding chambers that are interconnected. The upper and lower sliding chambers of the guide groove 15 are connected by a vertical sliding channel. The guide rod 22 only slides in the lower sliding chamber of the guide groove 15. The triangular plate-shaped part of the guide block 41 is slidably connected to the lower chamber, and the rod-shaped part is slidably connected to the upper chamber and the sliding channel. The upper chamber of the guide groove 15 does not penetrate the tube wall of the introduction tube 1, but is only connected to the inside of the introduction tube 1. The rod-shaped part at the top of the guide block 41 is L-shaped and protrudes from the guide groove 15 to enter the inside of the introduction tube 1. The rod-shaped part of the guide block 41 is connected to the upper sliding chamber of the guide groove 15. A first spring 413 is vertically connected between the top ends of the chambers. The first spring 413 naturally extends in a natural state, pushing the guide block 41 to the lowest point it can reach. The inclined surface of the triangular plate-shaped part of the guide block 41 is set on the side close to the guide rod 22. In the unlocked state, the inclined surface of the guide block 41 is against the self-locking head 222, and a self-locking groove 414 is provided at the top end of the inclined surface of the guide block 41. The connection between the edge of the self-locking groove 414 and the inclined surface of the guide block 41 is also rounded. The shape and size of the self-locking groove 414 match the self-locking head 222. The guide block 41 moves downward relative to the driving bucket 2. When the self-locking head 222 is opposite to the guide block 41, the self-locking spring 223 pushes the self-locking head 222 into the self-locking groove 414, and the two are relatively fixed and self-locked. At this time, the driving bucket 2 cannot slide up and down under external force, thereby causing the clamping angle of the clamp 3 to be locked.

[0030] The side of the guide block 41 close to the outside of the introduction tube 1 protrudes from the guide groove 15, and is rotatably connected to a retracting rod 411. The guide block 41 is provided with a retracting groove for the retracting rod 411 to rotate, and a retracting shaft is fixedly installed in the retracting groove. The retracting rod 411 is rotatably connected to the guide block 41 through the retracting shaft, and a torsion spring is connected between the retracting shaft and the retracting rod 411. The end of the retracting rod 411 away from the guide block 41 is fixedly connected to an outer cover plate 412. When the guide block 41 drives the outer cover plate 412 to slide downward, if the foreign body held by the clamp 3 is wider, the outer cover plate 412 rotates a certain angle with the retracting shaft as the center and continues to slide down, finally propping up the inner wall of the digestive tract and wrapping the foreign body. For sharp foreign bodies such as needles, fish bones, and hairpins, they will pierce the inner wall of the digestive tract after being swallowed. At this time, the outer cover plate 412 can prop up the wall of the digestive tract to make the foreign body detach, and at the same time wrap the sharp foreign body to ensure that no secondary damage is caused to the inner wall of the digestive tract during the removal process.

[0031] like Figure 1 , Figure 4 As shown, an adjusting cylinder 14 is fixedly installed on the top of the introduction tube 1, and adjusting grooves are vertically opened on both sides of the adjusting cylinder 14 and the introduction tube 1. The adjusting grooves on both sides penetrate the introduction tube 1 and the adjusting cylinder 14, and a first coil spring 12 and a second coil spring 13 are fixedly installed on both sides of the top inside the introduction tube 1, and are respectively connected with a first pull rope 121 and a second pull rope 131, and the end of the first pull rope 121 is located inside the end of the introduction tube 1, and the end of the first pull rope 121 is connected to the L-shaped rod at the top part of the guide block 41, and the end of the second pull rope 131 is also located inside the end of the introduction tube 1, and the end of the second pull rope 131 is connected to the top of the driving bucket 2, and the first adjusting member 141 and the second adjusting member 142 are connected to the two sides of the adjusting cylinder 14 through the adjusting grooves for sliding up and down, and the first adjusting member 141 and the second adjusting member 142 are It is set to be rod-shaped, and its ends are extended into the interior of the introduction tube 1, and are fixedly connected to the first pull rope 121 and the second pull rope 131 respectively, and the outer ends of both are set to be threaded rods, and the threaded rods are threadedly connected with an adjusting cap, and the adjusting cap is used to fix the adjusting member. When fixing is required, the adjusting cap is rotated and the cap mouth of the adjusting cap is pressed against the outer wall of the adjusting tube 14, thereby increasing the friction between the adjusting cap and the outer wall of the adjusting tube 14, and the position of the adjusting member is fixed. Under normal conditions, the first coil spring 12 and the second coil spring 13 are naturally curled, and the first spring 413 and the second spring 221 are also naturally contracted, respectively pulling up the first pull rope 121 and the second pull rope 131, and the first pull rope 121 and the second pull rope 131 respectively drive the guide block 41 and the driving bucket 2 to slide upward to the highest point that both can reach.

[0032] like Figure 1-Figure 3As shown, the inner wall of the introduction tube 1 is radially slidably connected with a plurality of centrally symmetrical driving rods 11, the inner wall of the introduction tube 1 is provided with a groove, the end of the driving rod 11 is embedded in the groove, and a tension spring 111 is connected between the end of the driving rod 11 close to the groove and the groove, and the driving bucket 2 is provided with a plurality of centrally symmetrical driving grooves 21 along its own inclined surface direction, the width of the driving rod 11 is smaller than the width of the driving groove 21, so that the clamp 3 can rotate adaptively when clamping foreign objects, the number of the driving rods 11 is the same as the number of the driving grooves 21 and corresponds one to one, and a driving seat 112 is fixedly connected to the end of the driving rod 11 away from the inner wall of the introduction tube 1, and the width of the driving seat 112 is larger than the width of the driving groove 21. The width of the movable groove 21, when the removal device is installed, the end of the driving rod 11 away from the inner wall of the introduction tube 1 is passed through the driving groove 21 and placed in the driving bucket 2, and then the driving seat 112 is fixedly installed on the end of the driving rod 11. The installation method of the driving seat 112 and the driving rod 11 is different according to the material of the removal device. When the device material is plastic, it can be fixed by thermal bonding or thermal compression. When the device is made of metal, it is fixed by welding. In this scheme, a threaded connection is adopted, that is, a threaded hole is opened on the driving seat 112, and a thread is set at the end of the driving rod 11, and the driving seat 112 is rotatably installed on the driving rod 11.

[0033] A mounting rod is fixedly provided on the inner wall of the introduction tube 1, and the mounting rod is L-shaped. The horizontal end of the mounting rod is integrally formed with the inner wall of the introduction tube 1, and the vertical bottom end of the mounting rod is rotatably connected with a mounting seat 16. A bearing is connected between the mounting seat 16 and the mounting rod, and the vertical part of the mounting rod is coaxially arranged with the introduction tube 1, and the mounting seat 16 is coaxially arranged with the vertical part of the mounting rod; for blunt foreign bodies with smooth surfaces and inclined surfaces, when the clamp 3 clamps it, the end of the clamp rod 32 contacts the inclined surface of the foreign body, and as the clamp rod 32 is clamped, the clamp rod 3 2 and the blunt foreign body surface increase, at this time, for the smooth and inclined foreign body, the clamp rod 32 will slide relatively on its surface, so as to adjust the clamping angle and clamping position, the sliding of the clamp rod 32 on both sides will cause the clamp 3 to deflect at a small angle, at this time the clamp 3 will drive the mounting seat 16 to rotate, and the rotation of the mounting seat 16 will drive the driving rod 11 to rotate relative to the introduction tube 1, because the width of the driving rod 11 is smaller than the width of the driving groove 21, the driving rod 11 can deflect in the driving groove 21.

[0034] like Figure 3 , Figure 5-Figure 7As shown, the clamp 3 includes an articulated seat 31, the edge of the articulated seat 31 is symmetrically rotatably connected to a varying number of clamp rods 32, the articulated seat 31 is connected to a mounting screw 311, the distance between the top end of the clamp rod 32 and the articulated seat 31 is smaller than the distance between the bottom end of the clamp rod 32 and the articulated seat 31, the top end of the clamp rod 32 drives the bottom end of the clamp rod 32 to open and close to hold foreign matter, the top end of the clamp rod 32 is rotatably connected to a hinged rod, before installing the clamp 3, first install the drive bucket 2 in the introduction pipe 1, and embed the end of the drive rod 11 into the drive bucket 2 and install the driving seat 112, the mounting screw 311 passes through the hinge seat 31 and is threadedly connected to the mounting seat 16, so that the clamp 3 is installed on the introduction tube 1, and then the hinge rod is connected to the driving seat 112. Plates are set at both ends of the driving seat 112, and there is a gap between the plates at both ends for the hinge rod to rotate. The plates on both sides of the driving seat 112 are provided with holes, and the hinge rod is also provided with corresponding holes. The hinge rod and the driving seat 112 are connected by a pin shaft. Depending on the different foreign bodies stuck in the digestive tract, the clamp 3 to be used is naturally different. Figure 5 The clamp 3 is a biopsy forceps suitable for this solution. The biopsy forceps is suitable for clamping blunt and large foreign bodies, such as coins, buttons and batteries. The clamp rods 32 of the biopsy forceps are set to two. Figure 6 The clamp 3 is a rat-tooth crocodile-mouth clamp suitable for the present invention, mainly for sharp foreign objects, such as needles, fish bones, blades, hairpins, etc. The rat-tooth crocodile-mouth clamp is also suitable for the two clamp rods 32. Figure 7 The multi-claw pliers are used for clamping spherical foreign objects, including three-claw pliers and five-claw pliers. The present invention is applicable to both three-claw pliers and five-claw pliers. The driving and clamping methods of the several clamps 3 designed in the present invention are consistent, and all can be connected and driven by the driving bucket 2.

[0035] Its working principle is as follows: in the initial state, the first pull rope 121 and the second pull rope 131 are pulled upward by the first adjusting member 141 and the second adjusting member 142, and the two adjusting members are fixed to the outer wall of the adjusting cylinder 14 through the adjusting cap. At this time, the driving bucket 2 and the guide block 41 are both at the highest point that can be reached in the introduction tube 1. At this time, the driving seat 112 is located on the side of the driving groove 21 close to the bottom end of the driving bucket 2, so the clamp 3 is in an open state, and the outer cover plate 412 does not cover the clamp 3. Before the introduction tube 1 is extended into the digestive tract, the first adjusting member is driven The node 141 pulls the first pull rope 121 downward, and the first spring 413 stretches naturally without being stressed. The first spring 413 pushes the guide block 41 downward, and the guide block 41 drives the outer cover plate 412 to slide down. The outer cover plate 412 blocks the clamp 3 to prevent the clamp 3 from directly piercing the inner wall of the digestive tract when the introduction tube 1 is extended into the digestive tract. When clamping a foreign object, the first adjustment member 141 is first driven to move upward, and the first spring 413 is forced to contract and drive the outer cover plate 412 to move upward. The outer cover plate 412 does not block the clamp 3, thereby not hindering the clamp 3 from clamping the foreign object.

[0036] The second adjusting member 142 is driven to move downward. At this time, the second spring 221 is not subjected to force and naturally extends. The second spring 221 drives the driving bucket 2 to move downward. When the driving bucket 2 moves downward, the driving seat 112 slides from the bottom end of the driving groove 21 to the top end relative to the driving bucket 2. Because the diameter of the bottom end of the driving bucket 2 is smaller than the diameter of the top end, and the tension spring 111 always pulls the driving rod 11 toward the introduction tube 1, so that the driving seat 112 always rests on the inclined inner wall of the driving bucket 2. Therefore, when the driving seat 112 is located at the top end of the driving bucket 2, the distance between the driving seats 112 on both sides increases, and the driving seat 112 drives the top end of the clamping rod 32 to open in the opposite direction. Therefore, the bottom ends of the clamping rod 32 will approach each other and clamp, so as to clamp the foreign matter. After clamping, the second adjusting member 142 is fixed to the outer wall of the adjusting tube 14 through the adjusting cap, and then the first adjusting member 141 is driven downward. The first adjusting member 141 makes the outer cover When the guide block 41 drives the outer cover plate 412 to slide to the lowest point that can be reached, the self-locking head 222 corresponds to the self-locking groove 414. At this time, the self-locking spring 223 pushes the self-locking head 222 into the self-locking groove 414. At this time, the sliding seat and the driving bucket 2 are fixed to each other. Because the drives of the two are different, namely the first pull rope 121 and the second pull rope 131, the two mutually restrict each other to achieve self-locking. The clamping angle of the clamp 3 is fixed and the height of the outer cover plate 412 is unchanged, which can ensure that when the introduction tube 1 is pulled out, the clamp 3 will not loosen the foreign body due to external force. Then the second adjusting member 142 is also fixed to the wall of the adjusting tube 14 through the adjusting cap, and finally the introduction tube 1 and the foreign body are pulled out of the digestive tract together.

[0037] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A foreign body removal device for children's digestive tract, comprising an introduction tube, the introduction tube is connected with a clamp, the clamp comprises a clamp rod hinged to the introduction tube, and is characterized in that: The inlet tube is vertically slidably connected to a driving bucket and a sliding frame, and is laterally slidably connected to a driving rod. The clamping rod is hinged to the inlet tube through the driving rod. The driving bucket is provided with an inclined driving groove. The end of the driving rod is slidably connected to the driving groove. The driving bucket slides up and down to drive the driving rod to slide laterally. The lateral sliding of the driving rod drives the clamping rod to rotate. The sliding frame is used to cover the clamp. The sliding frame and the driving bucket are respectively provided with a first locking part and a second locking part. The first locking part and the second locking part cooperate to fix the driving bucket.

2. The device for removing foreign bodies from the digestive tract of children according to claim 1, characterized in that: A first coil spring and a second coil spring are installed at the top of the introduction tube. The first coil spring is connected to a first pull rope, which is connected to the sliding frame. The second coil spring is connected to a second pull rope, which is connected to the driving bucket. An adjustment cylinder is also installed at the top of the introduction tube. The adjustment cylinder is slidably connected to a first adjustment member and a second adjustment member, and is respectively connected to the first pull rope and the second pull rope.

3. The device for removing foreign bodies from the children's digestive tract according to claim 2, characterized in that: The introduction tube is provided with a guide groove, and the sliding frame includes a guide block embedded in the guide groove. The guide block is rotatably connected to a retractable rod, and the end of the retractable rod away from the guide block is connected to an outer cover plate. The first locking part is arranged on a side of the guide block close to the introduction tube.

4. The device for removing foreign bodies from the digestive tract of children according to claim 3, characterized in that: The driving bucket is fixedly provided with a guide rod, the end of the guide rod is also embedded in the guide groove, the end of the guide rod corresponds to the guide block, and the second locking part is arranged at the end of the guide rod, and the second locking part corresponds to the first locking part.

5. The device for removing foreign bodies from the digestive tract of children according to claim 4, characterized in that: The driving rod is radially slidably connected to the introduction tube, a tension spring is connected between the tube wall of the introduction tube and the driving rod, one end of the driving rod away from the tube wall of the introduction tube is fixedly connected to the driving seat, the driving groove is located between the driving seat and the driving rod, and the top end of the clamping rod is rotatably connected to the driving seat.

6. The device for removing foreign bodies from the digestive tract of children according to claim 5, characterized in that: A mounting seat is rotatably arranged inside the introduction tube, and the mounting seat is coaxially arranged with the introduction tube. The clamp includes an articulated seat fixed to the mounting seat, a clamp rod is rotatably connected to the articulated seat, and the articulated seat is connected to a mounting screw, which is used to fix the articulated seat to the mounting seat.

7. The device for removing foreign bodies from the digestive tract of children according to claim 6, characterized in that: The distance between the top end of the clamping rod and the hinge seat is smaller than the distance between the bottom end of the clamping rod and the hinge seat.

8. The device for removing foreign bodies from the children's digestive tract according to claim 7, characterized in that: The end of the first pull rope is connected to the guide block and is used to drive the sliding frame to slide, and the second pull rope is connected to the driving bucket and is used to drive the driving bucket to slide.

9. The device for removing foreign bodies from the children's digestive tract according to claim 8, characterized in that: A first spring is connected between the guide block and the introduction tube, and a second spring is connected between the guide rod and the introduction tube.

10. The device for removing foreign bodies from the children's digestive tract according to claim 9, characterized in that: The guide block is arranged at an angle close to the side of the guide rod, the first locking part is arranged as a self-locking groove opened on the inclined surface of the guide block, the connection between the self-locking groove and the inclined surface of the guide block is arranged with a rounded corner, and the second locking part includes a self-locking head slidably connected to the end of the guide rod, and a self-locking spring connected between the self-locking head and the guide block.

Images