Abdominal foreign body rapid extractor

Abstract

The present invention discloses a rapid abdominal foreign body extractor, which includes a hollow handle. The handle is fixedly connected through a fixed cylinder. The cross-section of the fixed cylinder is circular. The fixed cylinder is slidably connected through a sliding cylinder, and a foreign body clamping mechanism is arranged in the sliding cylinder; the foreign body clamping mechanism includes two sliding plates. The sliding plates are slidably connected in the sliding cylinder. Two first racks are fixedly connected to the side walls of the sliding plates. The sliding cylinder is rotatably connected through a bearing to a rotating shaft. Two second gears are fixedly connected through the rotating shaft. The rotating shaft is rotatably connected through a bearing to a first gear. A damping washer is arranged between the first gear and the rotating shaft. The first rack is meshed with the first gear. A limiting block is fixedly connected to the upper surface of the sliding cylinder. The limiting block is of a hollow structure. The advantages are as follows: The extractor of the present invention can complete the clamping and storage of multiple foreign bodies once it enters the abdomen, greatly improving the surgical efficiency and avoiding secondary harm to patients at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a rapid abdominal foreign body extractor. Background Art

[0002] With the continuous development of medical technology, medical means are also constantly undergoing smaller iterations. Laparoscopy is one of the medical means. Similar to an electronic gastroscope, a laparoscope is a medical device with a miniature camera. Laparoscopic surgery is a surgery performed using a laparoscope and its related instruments. During laparoscopic surgery, small holes are made in the patient's abdomen, and the laparoscope and related surgical instruments are inserted through the holes into the abdominal cavity to perform the surgery. Compared with ordinary open abdominal surgery, laparoscopic surgery has the advantages of rapid recovery, short hospital stay, good abdominal cosmetic effect, and less pelvic adhesion, so it has been widely used. During the surgery, some tissues or foreign bodies need to be removed. After the removal is completed, the foreign bodies in the abdominal cavity are taken out through an extractor.

[0003] In the prior art, during the surgery, the existing extractor can only take out one foreign body at a time. After clamping the foreign body, the extractor needs to be taken out, the foreign body is placed, and then the extractor is inserted into the patient's body again to take out the foreign body. The multiple insertions and extractions greatly reduce the surgical efficiency. At the same time, it may cause secondary harm to the patient and reduce the surgical safety. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art and propose a rapid abdominal foreign body extractor.

[0005] To achieve the above purpose, the present invention adopts the following technical solution:

[0006] A rapid abdominal foreign body extractor includes a hollow handle. The handle is fixedly connected through a fixed cylinder. The cross-section of the fixed cylinder is circular. The fixed cylinder is slidably connected through a sliding cylinder. A foreign body clamping mechanism is arranged in the sliding cylinder.

[0007] The object clamping mechanism includes two sliding plates which are slidably connected inside a sliding cylinder. Two first racks are fixedly connected to the side walls of the sliding plates. The sliding cylinder is rotatably connected through a bearing to a rotating shaft. Two second gears are fixedly connected through the rotating shaft. The rotating shaft is rotatably connected through a bearing to a first gear. A damping washer is arranged between the first gear and the rotating shaft. The first rack meshes with the first gear. A limiting block is fixedly connected to the upper surface of the sliding cylinder. The limiting block is of a hollow structure. The rotating shaft and the limiting block are rotatably connected through a bearing and extend into its interior. A first spring is fixedly connected between the rotating shaft and the inner bottom wall of the limiting block. A clamping block is fixedly connected to the side wall of the sliding plate away from the first rack. A limiting groove is formed in the inner top wall of the fixed cylinder. The limiting block is slidably connected to the fixed cylinder through the limiting groove. A second spring is fixedly connected between the limiting block and the inner side wall of the limiting groove.

[0008] Furthermore, the object clamping mechanism further includes a functional block which is slidably connected inside the sliding cylinder. A sliding groove is formed in the side wall of the functional block close to the first gear. A second rack is slidably connected to the functional block through the sliding groove. A liquid groove is formed in the inner side wall of the sliding groove. A piston is hermetically slidably connected in the liquid groove. A connecting rod is fixedly connected between the piston and the second rack. A groove is formed in the side wall of the functional block away from the first gear. A driving block is hermetically slidably connected in the groove. A through hole is formed in the functional block. The through hole communicates the liquid groove with the groove. Pressure liquid is filled in both the liquid groove and the groove. Second stoppers are fixedly connected to two opposite inner side walls of the groove. A fourth spring is fixedly connected between the driving block and the second stopper. First stoppers are fixedly connected to two opposite inner side walls of the sliding cylinder. A third spring is fixedly connected between the functional block and the first stopper.

[0009] Furthermore, an operating mechanism is arranged inside the handle. The operating mechanism includes a driven shaft which is rotatably connected to the inner side wall of the handle through a bearing. A rope reel and two fourth gears are fixedly connected through the driven shaft. A steel wire rope is fixedly connected to the rope reel. One end of the steel wire rope away from the rope reel is fixedly connected to the side wall of the driving block. A driving shaft is rotatably connected to the inner side wall of the handle through a bearing. A fifth gear is fixedly connected through the driving shaft. The fifth gear meshes with the corresponding fourth gear. Two trigger rods are slidably connected through the side wall of the handle. Fourth racks are fixedly connected to the ends of the two trigger rods located inside the handle. The fourth racks mesh with the corresponding fifth gears. A pressing block is fixedly connected to the ends of the two trigger rods located outside the handle.

[0010] Further, a storage mechanism is provided inside the fixed cylinder. The storage mechanism includes a storage groove which is opened inside the fixed cylinder. The fixed cylinder is rotatably connected with a groove cover through a hinge. A sliding rod is slidably connected through the fixed cylinder. One end of the sliding rod extends through and is fixedly connected with a dial plate inside the storage groove, and the other end extends through and is outside the storage groove. Third racks are fixedly connected to both the end of the sliding rod outside the storage groove and the lower surface of the sliding cylinder. A fixed rod is fixedly connected to the inner side wall of the fixed cylinder. The fixed rod is rotatably connected through a bearing with a third gear. Both of the third racks are engaged with the third gear.

[0011] Further, the clamping block is of a hollow structure. Rubber capsules are fixedly connected to the side walls of the two opposite sides of the clamping block. A fixed tube is fixedly connected through the clamping block to communicate the rubber capsule with the inside of the clamping block. Two pressure plates are hermetically slidably connected inside the clamping block. A plurality of fourth springs are fixedly connected between the pressure plates and the inner side wall of the clamping block. Pressure liquid is filled in both the rubber capsule and the clamping block.

[0012] Further, a limiting rod is fixedly connected between the two opposite inner side walls of the sliding cylinder. The sliding plate is slidably connected through the limiting rod.

[0013] Further, the pressure liquid filled in the liquid groove and the groove is hydraulic oil.

[0014] Further, the pressure liquid filled in the rubber capsule and the clamping block is medical sodium hyaluronate gel.

[0015] Further, the cross section of the sliding plate is concave-shaped with the opening facing one side, and the lengths of the two sliding plates are inconsistent.

[0016] Further, the pressing block is made of rubber and has anti-slip patterns carved on its outer wall.

[0017] The present invention has the following advantages:

[0018] 1. By operating the pressing block, the rope reel can be rotated to wind up the steel wire rope, so that the functional block slides. First, the two clamping blocks are driven to clamp the foreign object, and then the clamped foreign object is taken into the fixed cylinder, so that the foreign object falls into the storage groove. When the pressing block is released, the clamping block can be reset for the next object taking, so that the object taker can complete multiple object takings with one entry into the abdomen without taking out the object taker multiple times, greatly improving the surgical efficiency.

[0019] 2. Multiple object taking operations can be completed with one entry into the abdomen without the need to take out the object taker and insert it again multiple times, avoiding secondary injuries to the patient caused by the removal and insertion operations, and greatly improving the surgical safety.

[0020] 3. By simply operating the pressing block, operations such as clamping an object, sliding the sliding cylinder into the fixed cylinder, dropping the foreign object, and resetting can be completed, making the operation of the foreign object extractor more convenient, avoiding distractions for medical staff to perform other operations, and enabling them to focus more on the surgery.

[0021] 4. After the foreign object falls into the storage groove, through the setting of the third gear and the third rack, during the reset process of the sliding cylinder, the third gear and the third rack can be engaged, enabling the dial plate to push the foreign object to the rear of the storage groove, leaving the front position available, avoiding the accumulation of foreign objects at the front, thus ensuring that subsequent foreign objects can fall into the storage groove more smoothly, and at the same time greatly improving the storage effect of the storage groove, and ensuring that more foreign objects can be stored.

[0022] 5. Through the setting of the rubber bladder, during the process of clamping the foreign object, the rubber bladder can deform according to the shape of the foreign object, so that the rubber bladder can fit the foreign object more fully, thereby generating a better clamping effect, ensuring a better clamping effect on foreign objects of different shapes, avoiding the clamped object from slipping, and ensuring stable clamping.

[0023] 6. The medical sodium hyaluronate gel is used as the pressure liquid inside the clamping block. Even if there is a leakage inside, the medical sodium hyaluronate gel will not affect the patient's body, avoiding discomfort caused by the foreign object in the foreign object extractor after leakage, and further improving the surgical safety of the foreign object extractor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the abdominal cavity foreign object rapid extractor proposed by the present invention;

[0025] Figure 2 is Figure 1 a partial enlarged view in

[0026] Figure 3 is a schematic internal structure diagram of the abdominal cavity foreign object rapid extractor under longitudinal section proposed by the present invention;

[0027] Figure 4 is Figure 3 an enlarged view of part A in

[0028] Figure 5 is Figure 4 an enlarged view of part B in

[0029] Figure 6 is a schematic internal structure diagram of the abdominal cavity foreign object rapid extractor under longitudinal section proposed by the present invention;

[0030] Figure 7 is Figure 6 a partial enlarged view in

[0031] Figure 8 is Figure 7Enlarged view at position C in

[0032] Figure 9 The structural schematic diagram of the sliding plate in the abdominal cavity foreign body rapid extractor proposed by the present invention.

[0033] In the figure: 1 handle, 2 fixed cylinder, 3 sliding cylinder, 4 sliding plate, 5 clamping block, 6 first rack, 7 rotating shaft, 8 first gear, 9 second gear, 10 limiting block, 11 first spring, 12 second spring, 13 functional block, 14 first stop block, 15 third spring, 16 liquid tank, 17 piston, 18 sliding groove, 19 second rack, 20 connecting rod, 21 groove, 22 through hole, 23 driving block, 24 second stop block, 25 fourth spring, 26 steel wire rope, 27 storage tank, 28 tank cover, 29 dial plate, 30 sliding rod, 31 fixed rod, 32 third gear, 33 third rack, 34 driven shaft, 35 fourth gear, 36 rope reel, 37 driving shaft, 38 fifth gear, 39 trigger rod, 40 fourth rack, 41 pressing block, 42 rubber bladder, 43 fixed tube, 44 pressure plate, 45 fifth spring, 46 limiting rod, 47 limiting groove. Specific embodiments

[0034] Refer to Figures 1-9 , the abdominal cavity foreign body rapid extractor includes a hollow handle 1, the handle 1 is fixedly connected through a fixed cylinder 2, the cross-section of the fixed cylinder 2 is circular, the fixed cylinder 2 is slidably connected through a sliding cylinder 3, and a clamping mechanism is arranged in the sliding cylinder 3;

[0035] The clamping mechanism includes two sliding plates 4. The sliding plates 4 are slidably connected within the sliding cylinders 3. Two first racks 6 are fixedly connected to the side walls of the sliding plates 4. The sliding cylinders 3 are rotatably connected through bearings to a rotating shaft 7. Two second gears 9 are fixedly connected through the rotating shaft 7. The rotating shaft 7 is rotatably connected through bearings to a first gear 8. A damping washer is provided between the first gear 8 and the rotating shaft 7. The setting of the damping washer causes there to be a certain frictional resistance during the rotation between the first gear 8 and the rotating shaft 7. The first gear 8 can drive the rotating shaft 7 to rotate through this frictional resistance. When the rotating shaft 7 cannot rotate, the first gear 8 can overcome this frictional force and rotate relative to the rotating shaft 7. The first rack 6 meshes with the first gear 8. A limiting block 10 is fixedly connected to the upper surface of the sliding cylinder 3. The limiting block 10 is of a hollow structure. The rotating shaft 7 and the limiting block 10 are rotatably connected through bearings and extend into its interior. A first spring 11 is fixedly connected between the rotating shaft 7 and the inner bottom wall of the limiting block 10. The first spring 11 is a torsion spring, enabling the rotating shaft 7 to reverse under its elastic force. A clamping block 5 is fixedly connected to the side wall of the sliding plate 4 away from the first rack 6. A limiting groove 47 is provided in the inner top wall of the fixed cylinder 2. The limiting block 10 is slidably connected to the fixed cylinder 2 through the limiting groove 47. A second spring 12 is fixedly connected between the limiting block 10 and the inner side wall of the limiting groove 47.The clamping mechanism further includes a functional block 13 which is slidably connected inside the sliding cylinder 3. A sliding groove 18 is formed on the side wall of the functional block 13 close to one side of the first gear 8. The functional block 13 is slidably connected with a second rack 19 through the sliding groove 18. A liquid groove 16 is formed on the inner side wall of the sliding groove 18. A piston 17 is hermetically and slidably connected inside the liquid groove 16. A connecting rod 20 is fixedly connected between the piston 17 and the second rack 19. A groove 21 is formed on the side wall of the functional block 13 away from the first gear 8. A driving block 23 is hermetically and slidably connected inside the groove 21. A through hole 22 is formed inside the functional block 13, and the through hole 22 communicates the liquid groove 16 with the groove 21. Pressure liquid is filled in both the liquid groove 16 and the groove 21. Second stoppers 24 are fixedly connected to the two opposite inner side walls of the groove 21. A fourth spring 25 is fixedly connected between the driving block 23 and the second stopper 24. First stoppers 14 are fixedly connected to the two opposite inner side walls of the sliding cylinder 3. A third spring 15 is fixedly connected between the functional block 13 and the first stopper 14. When the steel wire rope 26 is wound up, first, the driving block 23 is pulled. The movement of the driving block 23 pumps the hydraulic oil in the liquid groove 16 into the groove 21 through the through hole 22, so that the piston 17 slides. The piston 17 drives the second rack 19 to move through the connecting rod 20, so that the second rack 19 meshes with the first gear 8. Then the steel wire rope 26 continues to pull the driving block 23. At this time, the driving block 23 drives the functional block 13 to slide. The sliding of the functional block 13 makes the second rack 19 move, driving the engaged first gear 8 to rotate. The rotation of the first gear 8 drives the rotating shaft 7 to rotate through friction, so that the two second gears 9 rotate. The rotation of the second gears 9, through meshing with the two groups of first racks 6, makes the two sliding plates 4 move towards each other, and further makes the two clamping blocks 5 move towards each other to clamp the foreign object. Then the functional block 13 drives the sliding cylinder 3 to move into the fixed cylinder 2. When the foreign object enters the fixed cylinder 2 and moves above the storage groove 27, at this time, the second spring 12 is compressed to the limit state, so that the sliding cylinder 3 cannot move further at this time. And at this time, the second rack 19 and the first gear 8 are still in the meshing state. The movement of the second rack 19 drives the first gear 8 to rotate, making the first gear 8 rotate relative to the rotating shaft 7 against the friction with the rotating shaft 7 until the second rack 19 disengages from the first gear 8. After the first gear 8 and the second rack 19 are disengaged, the elastic force accumulated by the first spring 11 is released at this time, making the rotating shaft 7 rotate in the reverse direction. The reverse rotation of the rotating shaft 7, through meshing with the first rack 6, makes the two sliding plates 4 move in the opposite directions, so that the two clamping blocks 5 move in the opposite directions to release the clamped foreign object. At this time, the foreign object will fall for storage, so that the extractor can complete multiple object extraction operations once it enters the patient's abdominal cavity, without taking the extractor out and inserting it into the patient's body multiple times, greatly improving the surgical efficiency.

[0036] It is worth mentioning that multiple object retrieval operations can be completed in one abdominal entry without the need to repeatedly remove and re-insert the retrieval device, avoiding secondary injuries to the patient caused by the removal and insertion operations, and greatly improving the safety of the surgery.

[0037] An operating mechanism is provided inside the handle 1. The operating mechanism includes a driven shaft 34. The driven shaft 34 is rotatably connected to the inner side wall of the handle 1 through a bearing. A rope reel 36 and two fourth gears 35 are fixedly connected through the driven shaft 34. A steel wire rope 26 is fixedly connected to the rope reel 36. One end of the steel wire rope 26 far from the rope reel 36 is fixedly connected to the side wall of the driving block 23. The inner side wall of the handle 1 is rotatably connected to a driving shaft 37 through a bearing. A fifth gear 38 is fixedly connected through the driving shaft 37. The fifth gear 38 meshes with the corresponding fourth gear 35. Two trigger rods 39 are slidably connected through the side wall of the handle 1. One ends of the two trigger rods 39 located inside the handle 1 are fixedly connected with fourth racks 40. The fourth racks 40 mesh with the corresponding fifth gears 38. One ends of the two trigger rods 39 located outside the handle 1 are fixedly connected with a pressing block 41 together. Only by operating the pressing block 41 to drive the trigger rod 39 to drive the fourth rack 40 to move can the clamping, movement, contact clamping and reset of foreign objects be completed, so that medical staff only need to operate the pressing block 41, without being distracted to perform other operations, can focus more on the state inside the patient's abdominal cavity, and at the same time greatly improve the automation degree of the retrieval device.

[0038] A storage mechanism is provided inside the fixed cylinder 2. The storage mechanism includes a storage groove 27. The storage groove 27 is opened inside the fixed cylinder 2. The fixed cylinder 2 is rotatably connected with a groove cover 28 through a hinge. The groove cover 28 ensures that the storage groove 27 is blocked, and it is provided with a lock (not shown in the figure) to ensure that the groove cover 28 will not open during use. A sliding rod 30 is slidably connected through the fixed cylinder 2. One end of the sliding rod 30 extends through and is fixedly connected with a dial 29 inside the storage groove 27, and the other end extends through and is outside the storage groove 27. One ends of the sliding rod 30 located outside the storage groove 27 and the lower surface of the sliding cylinder 3 are fixedly connected with third racks 33. A fixed rod 31 is fixedly connected to the inner side wall of the fixed cylinder 2. The fixed rod 31 is rotatably connected through a bearing with a third gear 32. Both third racks 33 mesh with the third gear 32. The two third racks 33 are symmetrically arranged with respect to the third gear 32 (as Figure 4As shown in the figure, when the sliding cylinder 3 moves, it can drive the dial plate 29 to move in the opposite direction through the engagement of the third gear 32 and the third rack 33. When the foreign object being clamped enters the fixed cylinder 2 along with the sliding cylinder 3, through the engagement of the third rack 33 and the third gear 32, the dial plate 29 moves away from the third gear 32. When the foreign object falls into the storage groove 27 and the sliding cylinder 3 resets, through the engagement of the third gear 32 and the third rack 33, at this time the dial plate 29 moves towards the third gear 32, pushing the foreign object that has just fallen into the storage groove 27 to the rear of the storage groove 27. When the foreign object falls into the storage groove 27, it is automatically pushed to the rear of the storage groove 27, preventing the foreign object from accumulating in the front of the storage groove 27, thus ensuring that subsequent foreign objects can fall into the storage groove 27 more smoothly. At the same time, the storage effect of the storage groove 27 is greatly improved, and it can ensure that more foreign objects can be stored.

[0039] The clamping block 5 is of a hollow structure. Rubber capsules 42 are fixedly connected to the side walls of the two opposite sides of the clamping block 5. A fixed pipe 43 is fixedly connected through the clamping block 5, and the fixed pipe 43 communicates the rubber capsule 42 with the inside of the clamping block 5. Two pressure plates 44 are hermetically and slidably connected inside the clamping block 5. A hole (not shown in the figure) is provided on the side wall of the clamping block 5, so that the space inside the clamping block 5 outside the two pressure plates 44 communicates with the outside world, thus ensuring that the hermetically sliding pressure plates 44 can slide freely. A number of fifth springs 45 are fixedly connected between the pressure plates 44 and the inner side wall of the clamping block 5. Pressure liquid is filled in both the rubber capsule 42 and the clamping block 5. When the two clamping blocks 5 move towards each other, they approach the foreign object at the same time and make the rubber capsule 42 contact the foreign object. As the clamping block 5 moves, the rubber capsule 42 gradually contacts the foreign object and changes its shape according to the shape of the foreign object. The change in shape causes the pressure liquid inside to enter the clamping block 5 through the fixed pipe 43, thereby causing the pressure plate 44 to slide and compress the fifth spring 45 until the pressure plate 44 moves to the limit position and cannot move. At this time, the rubber capsule 42 clamps the foreign object, and at the same time, the rubber capsule 42 changes its own shape according to the shape of the clamped foreign object to ensure full contact with the foreign object, so that the object picker can clamp foreign objects of different shapes well and prevent the clamped foreign object from falling off again.

[0040] A limiting rod 46 is fixedly connected between the two opposite inner side walls of the sliding cylinder 3. The sliding plate 4 is slidably connected through the limiting rod 46. The setting of the limiting rod 46 can play a certain limiting role in the movement of the sliding plate 4, enabling the two sliding plates 4 to move stably along the limiting rod 46, thereby preventing deflection during the movement process.

[0041] The pressure liquid filled in the liquid tank 16 and the groove 21 is hydraulic oil. The pressure liquid filled in the rubber bladder 42 and the clamping block 5 is medical sodium hyaluronate gel. The medical sodium hyaluronate gel is a colorless transparent gel-like solution composed of high-purity sodium hyaluronate and physiological buffer balanced salt. It is sealed in the rubber bladder 42 and the clamping block 5, ensuring a sterile environment. Therefore, even if it leaks, it will not affect the human body, thus avoiding discomfort to the patient caused by foreign objects in the extractor after leakage and further improving the surgical safety of the extractor.

[0042] The cross-section of the sliding plate 4 is a concave shape with an opening facing one side (as Figure 9 shown), enabling the second rack 19 to pass through the sliding plate 4, ensuring that the second rack 19 does not interfere with the movement of the sliding plate 4. Moreover, the lengths of the two sliding plates 4 are inconsistent, and the inconsistent lengths ensure that the two groups of first racks 6 are symmetric about the second gear 9, thereby ensuring that the rotation of the second gear 9 can cause the two sliding plates 4 to move in opposite directions.

[0043] The pressing block 41 is made of rubber, and its outer wall is engraved with anti-slip patterns. The rubber material and the anti-slip patterns on the outer wall prevent slipping when operating the pressing block 41, ensuring the stability of the extractor operation.

[0044] In the present invention, the extractor is inserted into the abdominal cavity, and the foreign object is searched for through a laparoscope. After finding the foreign object, the extractor is operated to place the foreign object between the two clamping blocks 5. Then, the pressing block 41 is operated, causing the trigger rod 39 to drive the fourth rack 40 to move. The movement of the fourth rack 40 drives the fifth gear 38 to rotate, and the fifth gear 38 drives the fourth gear 35 meshing with it to rotate. Thus, the fourth gear 35 drives the rope reel 36 to rotate through the driven shaft 34, and the rope reel 36 can wind up the steel wire rope 26.

[0045] When the steel wire rope 26 is wound up, it first pulls the driving block 23. The movement of the driving block 23 pumps the hydraulic oil in the liquid tank 16 into the groove 21 through the through hole 22, causing the piston 17 to slide. The piston 17 drives the second rack 19 to move through the connecting rod 20, making the second rack 19 mesh with the first gear 8. Then, the steel wire rope 26 continues to pull the driving block 23. At this time, the driving block 23 drives the functional block 13 to slide. The sliding of the functional block 13 causes the second rack 19 to move, driving the first gear 8 meshing with it to rotate. The rotation of the first gear 8 drives the rotating shaft 7 to rotate through friction, thereby causing the two second gears 9 to rotate. The rotation of the second gears 9, through meshing with the two groups of first racks 6, causes the two sliding plates 4 to move towards each other, and further causes the two clamping blocks 5 to move towards each other.

[0046] When the two clamping blocks 5 move towards each other, they approach the foreign object simultaneously and cause the rubber bladder 42 to contact the foreign object. As the clamping blocks 5 move, the rubber bladder 42 gradually contacts the foreign object and deforms according to the shape of the foreign object. This deformation causes the pressure liquid inside to enter the clamping blocks 5 through the fixed pipe 43, thereby causing the pressure plate 44 to slide and compress the fifth spring 45 until the pressure plate 44 reaches the limit position and cannot move further. At this time, the rubber bladder 42 clamps the foreign object, and the clamping blocks 5 can no longer move either.

[0047] At this time, the functional block 13 continues to move, but the clamping blocks 5 cannot move further, which causes the sliding plate 4 to be unable to move, that is, the first rack 6 cannot move further. Since the first rack 6 meshes with the second gear 9, the second gear 9 cannot rotate at this time, and the rotating shaft 7 cannot rotate either. At this time, the second rack 19 is still moving with the functional block 13. Through the meshing of the second rack 19 and the first gear 8, the first gear 8 will drive the entire sliding cylinder 3 to slide into the fixed cylinder 2, bringing the clamped foreign object into the fixed cylinder 2. At the same time, the second spring 12 is compressed, and through the meshing of the third rack 33 and the third gear 32, the dial 29 moves away from the third gear 32.

[0048] When the foreign object enters the fixed cylinder 2 and moves above the storage groove 27, the second spring 12 is compressed to the limit state at this time, which causes the sliding cylinder 3 to be unable to move further. At this time, the second rack 19 and the first gear 8 are still in the meshing state. The movement of the second rack 19 will drive the first gear 8 to rotate, causing the first gear 8 to overcome the friction with the rotating shaft 7 and rotate relative to the rotating shaft 7 until the second rack 19 disengages from the first gear 8. After the first gear 8 disengages from the second rack 19, the elastic force accumulated in the first spring 11 is released, causing the rotating shaft 7 to rotate in the reverse direction. The reverse rotation of the rotating shaft 7 will, through the meshing with the first rack 6, cause the two sliding plates 4 to move in opposite directions, thereby causing the two clamping blocks 5 to move in opposite directions and release the clamped foreign object. At this time, the foreign object will fall into the storage groove 27. While releasing the clamping of the foreign object, under the elastic force of the fifth spring 45, the pressure plate 44 resets, pumping the pressure liquid back into the rubber bladder 42 to restore the rubber bladder 42 to its original shape.

[0049] After the foreign object is sent into the fixing cylinder 2, release the pressing block 41. Under the elastic force of the fourth spring 25, the driving block 23 returns to its original position. At the same time, under the elastic force of the third spring 15, the functional block 13 returns to its original position. Under the elastic force of the second spring 12, the sliding cylinder 3 slides back to its original position. The return of the driving block 23 pumps the hydraulic oil back into the liquid tank 16 through the through hole 22, so that the piston 17 drives the second rack 19 to slide. As a result, when the functional block 13 returns to its original position, the second rack 19 will not engage with the first gear 8. At the same time when the sliding cylinder 3 returns to its original position, through the engagement of the third gear 32 and the third rack 33, at this time, the dial 29 moves towards the direction of approaching the third gear 32, and pushes the foreign object that has just fallen into the storage tank 27 to the rear of the storage tank 27.

[0050] At this time, continue to search for the next foreign object. After finding it, place the foreign object between the two clamping blocks 5, and continue to clamp and store the foreign object according to the above operations. When all foreign objects are clamped and stored, take out the object picker, open the tank cover 28, take out the foreign objects stored inside, and disinfect the entire object picker.

Claims

1. A quick abdominal foreign body retrieval device, comprising a hollow handle (1), characterized in that: The handle (1) is penetrated and fixedly connected with a fixed cylinder (2), the cross section of the fixed cylinder (2) is circular, the fixed cylinder (2) is penetrated and slidably connected with a sliding cylinder (3), and a clamping mechanism is arranged in the sliding cylinder (3); The clamping mechanism comprises two sliding plates (4), the sliding plates (4) are slidably connected in the sliding cylinder (3), the side walls of the sliding plates (4) are fixedly connected to two first racks (6), the sliding cylinder (3) is rotatably connected to a rotating shaft (7) through a bearing, the rotating shaft (7) is fixedly connected to two second gears (9), the rotating shaft (7) is rotatably connected to a first gear (8) through a bearing, a damping washer is provided between the first gear (8) and the rotating shaft (7), the first rack (6) is meshed with the first gear (8), and a limit block (10) is fixedly connected to the upper surface of the sliding cylinder (3). The limit block (10) is a hollow structure. The rotating shaft (7) and the limit block (10) are rotatably connected via a bearing that penetrates and extends into the interior of the limit block. A first spring (11) is fixedly connected between the rotating shaft (7) and the inner bottom wall of the limit block (10). A clamping block (5) is fixedly connected to the side wall of the sliding plate (4) away from the first rack (6). A limit groove (47) is provided on the inner top wall of the fixed cylinder (2). The limit block (10) is slidably connected to the fixed cylinder (2) via the limit groove (47). A second spring (12) is fixedly connected between the limit block (10) and the inner side wall of the limit groove (47). The clamping mechanism further comprises a functional block (13), wherein the functional block (13) is slidably connected inside the slide cylinder (3), a side wall of the functional block (13) close to the first gear (8) is provided with a sliding groove (18), the functional block (13) is slidably connected to a second rack (19) via the sliding groove (18), a liquid groove (16) is provided on the inner side wall of the sliding groove (18), a piston (17) is sealingly slidably connected inside the liquid groove (16), a connecting rod (20) is fixedly connected between the piston (17) and the second rack (19), and a groove (21) is provided on the side wall of the functional block (13) away from the first gear (8), the groove (21) 21) is slidably connected with a driving block (23) in an inner seal, a through hole (22) is provided in the functional block (13), the through hole (22) connects the liquid tank (16) with the groove (21), the liquid tank (16) and the groove (21) are both filled with pressurized liquid, the two opposite inner side walls of the groove (21) are fixedly connected with a second stopper (24), a fourth spring (25) is fixedly connected between the driving block (23) and the second stopper (24), the two opposite inner side walls of the slide cylinder (3) are fixedly connected with a first stopper (14), and a third spring (15) is fixedly connected between the functional block (13) and the first stopper (14); A storage mechanism is arranged in the fixed cylinder (2), and the storage mechanism comprises a storage slot (27). The storage slot (27) is opened in the fixed cylinder (2), and the fixed cylinder (2) is rotatably connected to a slot cover (28) via a hinge. A sliding rod (30) is slidably connected to the fixed cylinder (2). One end of the sliding rod (30) extends through the storage slot (27) and is fixedly connected to a paddle (29), and the other end extends through the outside of the storage slot (27). One end of the sliding rod (30) located outside the storage slot (27) and the lower surface of the sliding cylinder (3) are both fixedly connected to a third rack (33). The inner side wall of the fixed cylinder (2) is fixedly connected to a fixed rod (31). The fixed rod (31) is rotatably connected to a third gear (32) via a bearing, and two third gears (33) are meshed with the third gear (32).

2. The rapid abdominal foreign body extractor according to claim 1, characterized in that: An operating mechanism is provided in the handle (1), the operating mechanism comprising a driven shaft (34), the driven shaft (34) being rotatably connected to the inner wall of the handle (1) via a bearing, the driven shaft (34) passing through and fixedly connected to a rope drum (36) and two fourth gears (35), the rope drum (36) being fixedly connected to a steel wire rope (26), the steel wire rope (26) being fixedly connected to the side wall of the driving block (23) at one end away from the rope drum (36), and the inner wall of the handle (1) being rotatably connected to a driving shaft (37) via a bearing. The driving shaft (37) passes through and is fixedly connected with a fifth gear (38), and the fifth gear (38) meshes with the corresponding fourth gear (35). The side wall of the handle (1) passes through and is slidably connected with two trigger rods (39), and one end of the two trigger rods (39) located inside the handle (1) is fixedly connected with a fourth rack (40), and the fourth rack (40) meshes with the corresponding fifth gear (38). The two ends of the two trigger rods (39) located outside the handle (1) are fixedly connected with a pressing block (41).

3. The rapid abdominal foreign body extractor according to claim 1, characterized in that: The clamping block (5) is a hollow structure. The side walls of the two clamping blocks (5) on opposite sides are fixedly connected to rubber bags (42). A fixing tube (43) is fixedly connected through the clamping block (5). The fixing tube (43) connects the rubber bag (42) with the inside of the clamping block (5). Two pressure plates (44) are sealingly and slidably connected inside the clamping block (5). A plurality of fifth springs (45) are fixedly connected between the pressure plates (44) and the inner side walls of the clamping block (5). The rubber bag (42) and the clamping block (5) are both filled with pressure liquid.

4. The rapid abdominal foreign body extractor according to claim 1, characterized in that: A limiting rod (46) is fixedly connected between two opposite inner side walls of the slide cylinder (3), and the sliding plate (4) is slidably connected to the limiting rod (46).

5. The rapid abdominal foreign body extractor according to claim 1, characterized in that: The pressure liquid filled in the liquid tank (16) and the groove (21) is hydraulic oil.

6. The rapid abdominal foreign body extractor according to claim 3, characterized in that: The pressure liquid filled in the rubber bag (42) and the clamping block (5) is medical sodium hyaluronate gel.

7. The rapid abdominal foreign body extractor according to claim 1, characterized in that: The cross section of the sliding plate (4) is a concave shape with the opening facing one side, and the lengths of the two sliding plates (4) are inconsistent.

8. The rapid abdominal foreign body extractor according to claim 2, characterized in that: The pressing block (41) is made of rubber, and the outer wall thereof is engraved with anti-slip patterns.

Images