CN113662642B - Intestines and stomach foreign matter remove device - Google Patents
Intestines and stomach foreign matter remove device Download PDFInfo
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- CN113662642B CN113662642B CN202110953005.6A CN202110953005A CN113662642B CN 113662642 B CN113662642 B CN 113662642B CN 202110953005 A CN202110953005 A CN 202110953005A CN 113662642 B CN113662642 B CN 113662642B
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/50—Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body
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Abstract
The invention provides a device for taking out foreign bodies in intestines and stomach, and belongs to the technical field of medical equipment. The guide tube comprises a guide tube, a fixed plate, a flexible tube body, two first arc-shaped blocks and a pushing mechanism, wherein the fixed plate is fixedly arranged at the right end of the guide tube through a fixed rod, a second through hole is formed in the fixed plate, the flexible tube body is sleeved outside the guide tube, one end of the flexible tube body is fixedly arranged on the outer side wall of the guide tube, the other end of the flexible tube body extends rightwards to penetrate through the second through hole to be turned outwards, the end part of the flexible tube body is fixedly connected to the right side face of the fixed plate, the flexible tube body located in the second through hole is an inner side wall, the flexible tube body fixed to the right side face of the fixed plate is an outer tube wall, a cavity is formed between the inner tube wall and the outer tube wall, the two first arc-shaped blocks are symmetrically arranged on the right side of the cavity, the pushing mechanism can drive the two first arc-shaped blocks to move leftwards and can change the distance between the two first arc-shaped blocks. The invention can stretch out and draw back the length, reduce the damage to the stomach side wall, safe and reliable.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and relates to a gastrointestinal foreign body taking-out device.
Background
In the operation of taking out foreign matters in intestines and stomach, because of the influence of the physical factors of a patient and the internal structure of the intestines and stomach, the cutting position is not necessarily positioned at the edge of the foreign matters, so that a certain distance exists between a cutting opening and the foreign matters, the existing scissors clamp does not have the extension function, when the distance between the foreign matters and the cutting opening is larger than the working range of the simple scissors clamp, the cutting opening needs to be additionally opened or the intestines and stomach with a certain length needs to be rolled, unnecessary damage to the intestines and stomach is caused, and the recovery time of the patient is prolonged; in addition, the end of the existing scissors holder is often pointed, and the gastrointestinal wall is easily scratched when the scissors are used for clipping.
Due to the different shapes of the foreign bodies, the following problems exist in the clamping process: for the foreign bodies with sharp ends, the foreign bodies are forcibly taken out by adopting the scissors clamp, so that the esophagus or the throat is easily scratched; for spherical or smooth-surfaced foreign matters, the scissors clamp is difficult to effectively grab or fix the foreign matters, and the foreign matters cannot be smoothly taken out.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a gastrointestinal foreign body taking-out device which can be stretched and contracted according to the position of a foreign body, is soft at the front end, reduces the damage to the side wall of the intestines and stomach, and is safe and reliable.
The purpose of the invention can be realized by the following technical scheme:
a gastrointestinal foreign body removing device comprises a catheter;
the fixed plate is fixedly arranged at the right end of the guide pipe through a fixed rod and is provided with a second through hole;
the flexible cylinder is sleeved outside the guide pipe in a stacked mode, one end of the flexible cylinder is fixedly arranged on the outer side wall of the guide pipe, the other end of the flexible cylinder extends rightwards to penetrate through the second through hole to be turned outwards, the end portion of the flexible cylinder is fixedly connected to the right side face of the fixing plate, the flexible cylinder is arranged in the second through hole in a sliding and sealing mode, the flexible cylinder located in the second through hole is an inner cylinder wall, the flexible cylinder fixed to the right side face of the fixing plate is an outer cylinder wall, and a cavity is formed between the inner cylinder wall and the outer cylinder wall;
the two first arc-shaped blocks are symmetrically arranged on the right side of the cavity;
pushing mechanism, pushing mechanism sets up in the pipe, pushing mechanism can drive and remove about two first arc pieces, can also change the distance between two first arc pieces simultaneously.
In the above gastrointestinal foreign matter removal device, the pushing mechanism includes:
the guide rod is inserted into the guide pipe, and the right end of the guide rod extends into the inner cylinder wall;
The two electromagnets are symmetrically embedded in the middle parts of the two first arc-shaped blocks;
the two second arc-shaped blocks are arranged at one end, extending into the inner cylinder wall, of the guide rod through a linkage mechanism, the two second arc-shaped blocks are made of ferromagnetic materials, the two second arc-shaped blocks correspond to the two first arc-shaped blocks one by one, the second arc-shaped blocks are located on the inner sides of the corresponding first arc-shaped blocks, and the linkage mechanism can change the distance between the two second arc-shaped blocks;
and the support mechanism is arranged on the guide rod and can enable the guide rod and the inner cylinder wall to keep coaxial.
In the above gastrointestinal foreign object retrieval device, the interlocking mechanism includes:
the right side surface of the movable plate is rotatably provided with a cylindrical block, the movable plate is provided with a through hole, and the right end of the guide rod penetrates through the through hole and is fixedly connected with the cylindrical block;
the movable plate is horizontally and symmetrically provided with two connecting plates, the two second rotating shafts are symmetrically and rotatably arranged on the two connecting plates, a third roller is fixedly arranged on the second rotating shafts, and the wheel surface of the third roller is in contact with the inner cylinder wall;
The two L-shaped connecting rods correspond to the two second rotating shafts one by one, the bent parts of the L-shaped connecting rods are rotatably arranged on the corresponding second rotating shafts, the second arc-shaped block is fixedly arranged at one end, close to the first arc-shaped block, of each L-shaped connecting rod, and a ball is fixedly arranged at one end, far away from the second arc-shaped block, of each L-shaped connecting rod;
the rotating structure is arranged on the cylindrical block and can drive the L-shaped connecting rod to rotate by utilizing the rotation of the cylindrical block.
In the above gastrointestinal foreign matter removal apparatus, the rotation structure includes:
the two arc-shaped guide blocks are uniformly arranged on the arc-shaped side wall of the cylindrical block at intervals along the circumferential direction, one side edge of each arc-shaped guide block is in contact with the arc-shaped side wall of the cylindrical block, the opposite side edge of each arc-shaped guide block is gradually far away from the axis of the cylindrical block, and the ball is always in contact with the arc-shaped surface of the arc-shaped guide block;
the two second reset springs correspond to the two L-shaped connecting rods one by one, one ends of the second reset springs are hinged to one sides, close to the ball, of the corresponding L-shaped connecting rods, the other ends of the second reset springs are hinged to connecting plates corresponding to the L-shaped connecting rods, and when the L-shaped connecting rods close to one sides of the second arc-shaped blocks are in horizontal positions, the second reset springs are in a compression state.
In foretell intestines and stomach foreign matter remove device, the outside limit of fly leaf is rotated through the first backup pad of a plurality of and is provided with a plurality of second gyro wheel, the axial of second gyro wheel is unanimous with the length direction of guide bar, the wheel face and the inner tube wall of second gyro wheel contact, two the connecting plate links firmly respectively on two corresponding first backup pads.
In the above gastrointestinal foreign object retrieval device, the support mechanism includes:
the fixed sleeve is coaxially and fixedly arranged on the guide rod;
the movable sleeve is arranged on the guide rod on the right side of the fixed sleeve in a sliding mode along the length direction;
the first idler wheels are arranged between the fixed sleeve and the movable sleeve through a plurality of supporting structures respectively, and the supporting structures can enable the first idler wheels to contact the inner cylinder wall all the time.
In the above gastrointestinal foreign object retrieval device, the support structure includes:
the device comprises a fixed sleeve, a movable sleeve, a first connecting rod, a second connecting rod, a first roller and a second roller, wherein one end of the first connecting rod is hinged to the fixed sleeve, one end of the second connecting rod is hinged to the movable sleeve, the other end of the first connecting rod and the other end of the second connecting rod are hinged together through a first rotating shaft, and the first roller is rotatably arranged on the first rotating shaft;
One end of the first reset spring is hinged to the fixed sleeve, the other end of the first reset spring is hinged to the first rotating shaft, and the first reset spring is in a compression state in an initial state.
In the above device for removing foreign matters from intestines and stomach, the two arc-shaped guide blocks are fixedly provided with the baffle on the side far away from the axis of the cylindrical block.
In the above device for removing foreign bodies in intestines and stomach, an electric air pump is arranged on the fixing plate and is communicated with the cavity through a pipe.
Compared with the prior art, the invention has the following advantages:
1. the flexible cylinder body positioned at the right end of the guide pipe extends into the opening knife mouth, the positions of the two first arc-shaped blocks are changed through the pushing mechanism, the flexible cylinder body is extended, foreign matters are covered in the end part of the flexible cylinder body, then the distance between the two first arc-shaped blocks is reduced through the pushing mechanism, the port of the flexible cylinder body is closed, the foreign matters are positioned between the inner cylinder walls of the flexible cylinder body, the flexible cylinder body is shortened through the pushing mechanism, and then the flexible cylinder body and the foreign matters are taken out together, so that the operation is simple; in addition, the end part of the flexible cylinder body is relatively soft, the inner wall of the intestines and stomach cannot be damaged, and the safety and the reliability are realized;
2. Inserting the guide rod into the guide tube, starting the two electromagnets to generate attraction between the electromagnets and the corresponding second arc-shaped blocks, pushing the guide rod to be continuously inserted into the inner cylinder wall, pushing the two first arc-shaped blocks to move towards the direction of the foreign matters through the two second arc-shaped blocks, driving the inner cylinder wall and the outer cylinder wall to gradually extend, and finally covering the foreign matters in the inner cylinder wall; in addition, the support mechanism can enable the guide rod and the inner cylinder wall to keep coaxial, so that the two second arc-shaped blocks and the two first arc-shaped blocks are prevented from being separated from each other to influence the expansion and contraction of the inner cylinder wall and the outer cylinder wall;
3. the guide rod is inserted, the movable plate and the cylindrical block are pushed to be gradually far away from the guide pipe, the inner cylinder wall and the outer cylinder wall are extended, after the foreign matter is covered by the port of the inner cylinder wall, the L-shaped connecting rod is driven by the rotating structure to be connected with one end of the second arc-shaped block to rotate oppositely, the two first arc-shaped blocks are close to each other by attraction, the port of the inner cylinder wall is closed, the foreign matter is wrapped in the inner cylinder wall, the inner wall of the intestines and stomach is prevented from being scratched when the foreign matter is taken out, and the safety and reliability are realized; in addition, when the guide rod moves, the wheel surfaces of the two third rollers are always in contact with the inner cylinder wall to play a role in guiding, so that the end part of the guide rod moves more smoothly, and meanwhile, the two third rollers also play a role in supporting, so that the port of the inner cylinder wall is kept in an open state, and foreign matters can enter conveniently;
4. In the initial state, under the elastic action of two second reset springs, the L-shaped connecting rod close to one side of the second arc-shaped blocks is in a horizontal position, at the moment, the two second arc-shaped blocks are far away from each other, so that the port of the inner cylinder wall is kept in an open state, when foreign matters enter the port of the inner cylinder wall, the guide rod is rotated, so that the two balls slide along the arc surfaces of the two arc-shaped guide blocks, the balls are gradually far away from the axis of the cylindrical block, so that the L-shaped connecting rod rotates, the two second arc-shaped blocks are close to each other, the two first arc-shaped blocks are close to each other, the port of the inner cylinder wall is closed, the foreign matters are limited in the inner cylinder wall, and the foreign matters are prevented from sliding down;
5. the guide rod is inserted to drive the movable plate to move along the inner cylinder wall, the plurality of second rollers on the movable plate roll along the inner cylinder wall, the movable plate is prevented from contacting the inner cylinder wall to damage the inner cylinder wall, and meanwhile, the second rollers also play a role in guiding, so that the two second arc-shaped blocks are always close to the two first arc-shaped blocks and cannot deviate;
6. the guide rod is inserted into the inner cylinder wall, and the plurality of first rollers are always in contact with the inner cylinder wall through the plurality of supporting structures, so that the guide rod and the inner cylinder wall are coaxial, and meanwhile, the guide rod can play a role in guiding and can be smoothly inserted into the inner cylinder wall;
7. In an initial state, under the action of a first reset spring, a first roller on a first rotating shaft is enabled to be always in contact with the inner cylinder wall, when the pipe diameter of the inner cylinder wall is small, the distance between the first roller and a guide rod is reduced, the included angle between a first connecting rod and a second connecting rod is increased, a movable sleeve is pushed to be gradually far away from a fixed sleeve, when the pipe diameter of the inner cylinder wall is large, the distance between the first roller and the guide rod is increased, the included angle between the first connecting rod and the second connecting rod is reduced, the movable sleeve is pulled to be gradually close to the fixed sleeve, the guide rod can adapt to flexible cylinders with different sizes, and the application range is improved;
8. when the inner cylinder wall and the outer cylinder wall extend, the inner cylinder wall and the outer cylinder wall are pumped into the cavity from the outside through the electric air pump, so that the inner cylinder wall and the outer cylinder wall are subjected to certain pressure, a certain shape is kept, the inner cylinder wall and the outer cylinder wall can conveniently extend into intestines and stomach, and foreign matters are grabbed; when the inner cylinder wall and the outer cylinder wall are shortened, air in the cavity is pumped to the outside through the electric air pump, so that the pressure in the cavity is reduced, and the inner cylinder wall and the outer cylinder wall are convenient to shorten.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a schematic view of the configuration of the inner and outer cartridge walls as they are elongated;
FIG. 4 is a cross-sectional view at B-B of FIG. 3;
FIG. 5 is a cross-sectional view taken at C-C of FIG. 3;
FIG. 6 is a cross-sectional view taken at D-D in FIG. 3;
FIG. 7 is a cross-sectional view taken at E-E of FIG. 3;
fig. 8 is a schematic structural view of the present invention when gripping foreign matter.
In the figure, 1, a catheter; 11. a baffle plate; 111. a first perforation; 2. a flexible cylinder; 21. a cavity; 22. a first arc-shaped block; 221. an electromagnet; 23. an inner cylinder wall; 24. an outer cylinder wall; 3. a fixing plate; 31. an electric air pump; 32. a second perforation; fixing the rod; 4. a guide bar; 41. fixing the sleeve; 411. a first link; 42. an active cannula; 421. a second link; 43. a first rotating shaft; 431. a first roller; 432. a first return spring; 5. a movable plate; 51. a through hole; 52. a first support plate; 521. a second roller; 53. a connecting plate; 531. a second rotating shaft; 532. a third roller; 533. an L-shaped connecting rod; 534. a second return spring; 54. a second arc-shaped block; 55. a ball; 6. a cylindrical block; 61. an arc-shaped guide block; 62. a baffle plate; 7. a first semicircular rod; 71. a second semi-circular rod; 72. a first locking plate; 721. a first notch; 73. a second locking plate; 731. a second notch; 74. a bolt; 741. a nut; 75. and (7) a rubber pad.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 8, the gastrointestinal foreign body removing device comprises a catheter 1, a fixing plate 3, a flexible cylinder 2, two first arc-shaped blocks 22 and a pushing mechanism.
The right end of the guide pipe 1 is provided with a baffle 11, the baffle 11 is provided with a first through hole 111, the first through hole 111 is coaxial with the guide pipe 1, and the first through hole 111 is in a conical shape with a small left and a large right.
The fixing plate 3 is fixedly arranged at the right end of the catheter 1 through a fixing rod 33, a second through hole 32 is formed in the fixing plate 3, and the second through hole 32 and the first through hole 111 are coaxial.
The flexible cylinder 2 is sleeved outside the guide pipe 1 in a stacking mode, one end of the flexible cylinder 2 is fixedly arranged on the outer side wall of the guide pipe 1, the other end of the flexible cylinder extends rightwards to penetrate through the second through hole 32 to be turned outwards, the end portion of the flexible cylinder is fixedly connected to the right side face of the fixing plate 3, the flexible cylinder 2 is arranged in the second through hole 32 in a sliding and sealing mode, the flexible cylinder 2 located in the second through hole 32 is an inner cylinder wall 23, the flexible cylinder 2 fixed to the right side face of the fixing plate 3 is an outer cylinder wall 24, and a cavity 21 is formed between the inner cylinder wall 23 and the outer cylinder wall 24.
Two first arc-shaped blocks 22 are symmetrically arranged at the right side of the cavity 21, and preferably, the two first arc-shaped blocks 22 are made of rubber materials.
The pushing mechanism is arranged in the conduit 1, and can drive the two first arc-shaped blocks 22 to move left and right and change the distance between the two first arc-shaped blocks 22.
The flexible cylinder 2 at the right end of the conduit 1 is stretched into the opening knife mouth, the positions of the two first arc-shaped blocks 22 are changed through the pushing mechanism, so that the flexible cylinder 2 is extended, foreign matters are covered in the end part of the flexible cylinder 2, then the distance between the two first arc-shaped blocks 22 is reduced through the pushing mechanism, the port of the flexible cylinder 2 is closed, the foreign matters are located between the inner cylinder walls 23 of the flexible cylinder 2 at the moment, the flexible cylinder 2 is shortened through the pushing mechanism, and then the flexible cylinder 2 and the foreign matters are taken out together, so that the operation is simple; in addition, the end part of the flexible cylinder body 2 is relatively soft, the inner wall of the intestines and the stomach cannot be damaged, and the safety and the reliability are realized.
Specifically, the pushing mechanism includes a guide rod 4, two electromagnets 221, two second arc blocks 54, and a support mechanism.
The guide rod 4 is inserted into the guide tube 1, and the right end of the guide rod 4 extends into the inner cylinder wall 23.
The two electromagnets 221 are symmetrically embedded in the middle of the two first arc-shaped blocks 22.
The two second arc-shaped blocks 54 are arranged at one end of the guide rod 4 extending into the inner cylinder wall 23 through a linkage mechanism, the two second arc-shaped blocks 54 are made of ferromagnetic materials, the two second arc-shaped blocks 54 correspond to the two first arc-shaped blocks 22 one by one, the second arc-shaped blocks 54 are located on the inner sides of the corresponding first arc-shaped blocks 22, and the linkage mechanism can change the distance between the two second arc-shaped blocks 54.
Preferably, two second arc-shaped blocks 54 are provided with rubber layers on opposite sides thereof, so as to avoid direct collision of the two second arc-shaped blocks 54.
The support means are arranged on the guide rod 4, which support means enable the guide rod 4 and the inner cylinder wall 23 to remain coaxial.
Inserting the guide rod 4 into the guide tube 1, then starting the two electromagnets 221 to generate attraction between the electromagnets 221 and the corresponding second arc-shaped blocks 54, pushing the guide rod 4 to continue to be inserted into the inner cylinder wall 23, pushing the two first arc-shaped blocks 22 to move towards the direction of the foreign matters through the two second arc-shaped blocks 54, driving the inner cylinder wall 23 and the outer cylinder wall 24 to gradually extend, and finally covering the foreign matters in the inner cylinder wall 23; in addition, the support mechanism can keep the guide rod 4 and the inner cylinder wall 23 coaxial, and prevent the two second arc-shaped blocks 54 and the two first arc-shaped blocks 22 from being separated to influence the extension and contraction of the inner cylinder wall 23 and the outer cylinder wall 24.
Specifically, the linkage mechanism includes a movable plate 5, two second rotating shafts 531, two L-shaped connecting rods 533 and a rotating structure.
The right side surface of the movable plate 5 is rotatably provided with a cylindrical block 6, a through hole 51 is formed in the movable plate 5, and the right end of the guide rod 4 penetrates through the through hole 51 to be fixedly connected with the cylindrical block 6.
The movable plate 5 is horizontally and symmetrically provided with two connecting plates 53, the two second rotating shafts 531 are symmetrically and rotatably arranged on the two connecting plates 53, the second rotating shafts 531 are fixedly provided with third rollers 532, and the wheel surfaces of the third rollers 532 are in contact with the inner cylinder wall 23.
The two L-shaped connecting rods 533 correspond to the two second rotating shafts 531 one by one, the bent part of each L-shaped connecting rod 533 is rotatably disposed on the corresponding second rotating shaft 531, the second arc-shaped block 54 is fixedly disposed at one end of each L-shaped connecting rod 533 close to the first arc-shaped block 22, and a ball 55 is fixedly disposed at one end of each L-shaped connecting rod 533 far away from the second arc-shaped block 54.
The rotating structure is arranged on the cylindrical block 6, and the rotating structure can drive the L-shaped connecting rod 533 to rotate by utilizing the rotation of the cylindrical block 6.
The guide rod 4 is inserted, the movable plate 5 and the cylindrical block 6 are pushed to gradually get away from the catheter 1, the inner cylinder wall 23 and the outer cylinder wall 24 are extended, after foreign matters are covered at the port of the inner cylinder wall 23, the L-shaped connecting rod 533 is driven by the rotating structure to be connected with one end of the second arc-shaped block 54 to rotate oppositely, the two first arc-shaped blocks 22 are made to approach each other by attraction, the port of the inner cylinder wall 23 is closed, the foreign matters are wrapped in the inner cylinder wall 23, the inner wall of intestines and stomach is prevented from being scratched when the foreign matters are taken out, and the safety and reliability are realized; in addition, when the guide rod 4 moves, the wheel surfaces of the two third rollers 532 always contact the inner cylinder wall 23 to play a role in guiding, so that the end of the guide rod 4 moves more smoothly, and meanwhile, the two third rollers 532 also play a role in supporting, so that the port of the inner cylinder wall 23 is kept in an open state, and foreign matters can enter conveniently.
Specifically, the rotating structure includes two arc-shaped guide blocks 61 and two second return springs 534.
The two arc-shaped guide blocks 61 are uniformly arranged on the arc-shaped side wall of the cylindrical block 6 at intervals along the circumferential direction, one side edge of each arc-shaped guide block 61 is in contact with the arc-shaped side wall of the cylindrical block 6, the opposite side edge of each arc-shaped guide block 61 is gradually away from the axis of the cylindrical block 6, and the round ball 55 is always in contact with the arc-shaped surface of the arc-shaped guide block 61.
The two second return springs 534 correspond to the two L-shaped connecting rods 533 one by one, one end of each second return spring 534 is hinged to one side of the corresponding L-shaped connecting rod 533 close to the ball 55, the other end of each second return spring 534 is hinged to the connecting plate 53 corresponding to the L-shaped connecting rod 533, and when the L-shaped connecting rod 522 close to one side of the second arc-shaped block 54 is in a horizontal position, the second return springs 534 are in a compression state.
Initial state, under the elastic force effect of two second reset springs 534, the L type connecting rod 533 that is close to second arc piece 54 one side is horizontal position, two second arc pieces 54 keep away from each other this moment, make the port of inner tube wall 23 keep the open mode, back in the port of inner tube wall 23 is got into to the foreign matter, rotate guide arm 4, make two balls 55 slide along the arcwall face of two arc guide blocks 61, the axle center of cylinder piece 6 is kept away from gradually to ball 55, make L type connecting rod 533 take place to rotate, two second arc pieces 54 are close to each other, two first arc pieces 22 are close to each other, close the port of inner tube wall 23, the foreign matter is injectd in inner tube wall 23, avoid the foreign matter landing.
Specifically, the movable plate 5 is circular, a plurality of first support plates 52 are circumferentially arranged on the outer side edge of the movable plate 5, a second roller 521 is rotatably arranged on the first support plates 52, the axial direction of the second roller 521 is consistent with the length direction of the guide rod 4, the wheel surface of the second roller 521 is in contact with the inner cylinder wall 23, and the two connecting plates 53 are respectively fixedly connected to the two corresponding first support plates 52.
The guide rod 4 is inserted to drive the movable plate 5 to move along the inner cylinder wall 23, the plurality of second rollers 521 on the movable plate 5 roll along the inner cylinder wall 23, so that the movable plate 5 is prevented from contacting the inner cylinder wall 23 and damaging the inner cylinder wall 23, and meanwhile, the second rollers 521 also play a role in guiding, so that the two second arc-shaped blocks 54 are always close to the two first arc-shaped blocks 22, and deviation cannot occur.
Specifically, the support mechanism includes a fixed sleeve 41, a movable sleeve 42, and a number of first rollers 431.
The fixing sleeve 41 is coaxially fixed on the guide rod 4.
The movable sleeve 42 is slidably disposed on the guide rod 4 at the right side of the fixed sleeve 41 in the length direction.
The first rollers 431 are respectively disposed between the fixed sleeve 41 and the movable sleeve 42 through a plurality of support structures, and the support structures enable the first rollers 431 to contact the inner cylindrical wall 23 at all times.
The guide rod 4 is inserted into the inner cylinder wall 23, and the plurality of first rollers 431 are always in contact with the inner cylinder wall 23 through the plurality of support structures, so that the guide rod 4 and the inner cylinder wall 23 are kept coaxial, and a guiding function can be achieved, and the guide rod 4 can be smoothly inserted into the inner cylinder wall 23.
Specifically, the support structure includes a first link 411, a second link 421, and a first return spring 432.
One end of the first link 411 is hinged to the fixed sleeve 41, one end of the second link 421 is hinged to the movable sleeve 42, the other end of the first link 411 and the other end of the second link 421 are hinged together through a first rotating shaft 43, and the first roller 431 is rotatably arranged on the first rotating shaft 43.
The first return spring 432 has one end hinged to the fixed sleeve 41 and the other end hinged to the first rotating shaft 43, and in an initial state, the first return spring 432 is in a compressed state.
In an initial state, under the action of the first return spring 432, the first roller 431 on the first rotating shaft 43 is always in contact with the inner cylinder wall 23, when the pipe diameter of the inner cylinder wall 23 is smaller, the distance between the first roller 431 and the guide rod 4 is reduced, the included angle between the first connecting rod 411 and the second connecting rod 421 is increased, the movable sleeve 42 is pushed to be gradually away from the fixed sleeve 41, when the pipe diameter of the inner cylinder wall 23 is larger, the distance between the first roller 431 and the guide rod 4 is increased, the included angle between the first connecting rod 411 and the second connecting rod 421 is reduced, and the movable sleeve 42 is pulled to be gradually close to the fixed sleeve 41, so that the guide rod 4 can adapt to the flexible cylinder bodies 2 with different sizes, and the application range is improved.
Specifically, the baffle plates 62 are fixedly arranged on the side edges of the two arc-shaped guide blocks 61 far away from the axis of the cylindrical block 6.
When the ball 55 gradually moves away from the arc guide block 61 and contacts the baffle 62, the two second arc blocks 54 approach each other, and the baffle 62 can limit the continuous range of the ball 55, so that the two second arc blocks 54 are prevented from being excessively extruded.
Specifically, an electric air pump 31 is disposed on the fixing plate 3, and the electric air pump 31 is communicated with the cavity 21 through a pipe.
When the inner cylinder wall 23 and the outer cylinder wall 24 extend, the electric air pump 31 pumps air from the outside into the cavity 21, so that the inner cylinder wall 23 and the outer cylinder wall 24 are under certain pressure, keep certain shapes, and conveniently extend into the intestines and stomach to grab foreign matters; when the inner cylinder wall 23 and the outer cylinder wall 24 are shortened, the electric air pump 31 pumps air in the cavity 21 to the outside at the same time, so that the pressure in the cavity 21 is reduced, and the shortening of the inner cylinder wall 23 and the outer cylinder wall 24 is facilitated.
Preferably, the device further comprises a locking mechanism, the locking mechanism is sleeved on the flexible cylinder 2 located outside the catheter 1, and the locking mechanism comprises a first semicircular rod 7, a second semicircular rod 71, a bolt 74 and a nut 741.
The one end of first semicircle pole 7 and the one end of second semicircle pole 71 articulate together, the other end of first semicircle pole 7 has set firmly first locking plate 72, the other end of second semicircle pole 71 has set firmly second locking plate 73, first breach 721 has been seted up to the outer end of first locking plate 72, second breach 731 has been seted up to the outer end of second locking plate 73, first breach 721 and second breach 731 are in the coplanar.
The bolt 74 is horizontally inserted into the first gap 721 and the second gap 731, and the nut 741 is screwed on the bolt 74 outside the first locking plate 72 and the second locking plate 73.
The first semicircular rod 7 and the second semicircular rod 71 are fixed together through the bolt 74 and the nut 741, the nut 741 is rotated inwards to reduce the distance between the first semicircular rod 7 and the second semicircular rod 71, the flexible cylinder 2 outside the catheter 1 is fixed, the extension range of the inner cylinder wall 23 and the extension range of the outer cylinder wall 24 are limited, when the extension range of the inner cylinder wall 23 and the extension range of the outer cylinder wall 24 need to be adjusted, the nut 741 is rotated outwards, and the first semicircular rod 7 and the second semicircular rod 71 are gradually far away from the flexible cylinder 2, so that the flexible cylinder 2 can be freely stretched and retracted, and the structure is simple.
Preferably, rubber pads 75 are fixedly arranged on the inner side surfaces, close to the flexible cylinder 2, of the first semicircular rod 7 and the second semicircular rod 71.
The rubber pad 75 can prevent the first semicircular rod 7 and the second semicircular rod 71 from directly extruding the flexible cylinder 2 to damage the flexible cylinder 2, and can also increase friction force to prevent the flexible cylinder 2 from sliding.
In the description of this patent, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the patent and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered limiting of the patent.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (6)
1. A gastrointestinal foreign body extraction device, which is characterized by comprising a catheter (1);
the fixing plate (3), the fixing plate (3) is fixedly arranged at the right end of the catheter (1) through a fixing rod (33), and a second through hole (32) is formed in the fixing plate (3);
the flexible tube body (2) is sleeved outside the guide tube (1) in a stacked mode, one end of the flexible tube body (2) is fixedly arranged on the outer side wall of the guide tube (1), the other end of the flexible tube body extends rightwards to penetrate through the second through hole (32) to be turned outwards, the end portion of the flexible tube body is fixedly connected to the right side face of the fixing plate (3), the flexible tube body (2) is arranged in the second through hole (32) in a sliding mode and in a sealing mode, the flexible tube body (2) located in the second through hole (32) is an inner tube wall (23), the flexible tube body (2) fixed to the right side face of the fixing plate (3) is an outer tube wall (24), and a cavity (21) is formed between the inner tube wall (23) and the outer tube wall (24);
The two first arc-shaped blocks (22) are symmetrically arranged on the right side of the cavity (21);
the pushing mechanism is arranged in the guide pipe (1), can drive the two first arc-shaped blocks (22) to move left and right, and can change the distance between the two first arc-shaped blocks (22);
the pushing mechanism includes:
the guide rod (4) is inserted into the guide pipe (1), and the right end of the guide rod (4) extends into the inner cylinder wall (23);
the two electromagnets (221) are symmetrically embedded in the middle parts of the two first arc-shaped blocks (22);
the two second arc-shaped blocks (54) are arranged at one end, extending into the inner cylinder wall (23), of the guide rod (4) through a linkage mechanism, the two second arc-shaped blocks (54) are made of ferromagnetic materials, the two second arc-shaped blocks (54) correspond to the two first arc-shaped blocks (22) one by one, the second arc-shaped blocks (54) are located on the inner sides of the corresponding first arc-shaped blocks (22), and the linkage mechanism can change the distance between the two second arc-shaped blocks (54);
the support mechanism is arranged on the guide rod (4) and can enable the guide rod (4) and the inner cylinder wall (23) to keep coaxial;
The linkage mechanism includes:
the right side surface of the movable plate (5) is rotatably provided with a cylindrical block (6), the movable plate (5) is provided with a through hole (51), and the right end of the guide rod (4) penetrates through the through hole (51) and is fixedly connected with the cylindrical block (6);
the movable plate (5) is horizontally and symmetrically provided with two connecting plates (53), the two second rotating shafts (531) are symmetrically and rotatably arranged on the two connecting plates (53), the second rotating shafts (531) are fixedly provided with third rollers (532), and the wheel surfaces of the third rollers (532) are in contact with the inner cylinder wall (23);
the two L-shaped connecting rods (533) correspond to the two second rotating shafts (531) one by one, the bent parts of the L-shaped connecting rods (533) are rotatably arranged on the corresponding second rotating shafts (531), the second arc-shaped block (54) is fixedly arranged at one end, close to the first arc-shaped block (22), of each L-shaped connecting rod (533), and a round ball (55) is fixedly arranged at one end, far away from the second arc-shaped block (54), of each L-shaped connecting rod (533);
the rotating structure is arranged on the cylindrical block (6), and the rotating structure can drive the L-shaped connecting rod (533) to rotate by utilizing the rotation of the cylindrical block (6);
The rotating structure includes:
the two arc-shaped guide blocks (61) are uniformly arranged on the arc-shaped side wall of the cylindrical block (6) at intervals along the circumferential direction, one side edge of each arc-shaped guide block (61) is in contact with the arc-shaped side wall of the cylindrical block (6), the opposite side edge of each arc-shaped guide block (61) is gradually far away from the axis of the cylindrical block (6), and the round ball (55) is always in contact with the arc-shaped surface of the arc-shaped guide block (61);
the two second reset springs (534) correspond to the two L-shaped connecting rods (533) one by one, one end of each second reset spring (534) is hinged to one side, close to the spherical ball (55), of the corresponding L-shaped connecting rod (533), the other end of each second reset spring (534) is hinged to the connecting plate (53) corresponding to the L-shaped connecting rod (533), and when the L-shaped connecting rod (533) close to one side of the second arc-shaped block (54) is in a horizontal position, the second reset springs (534) are in a compression state.
2. The gastrointestinal foreign matter taking device according to claim 1, wherein the outer side edge of the movable plate (5) is rotatably provided with a plurality of second rollers (521) through a plurality of first supporting plates (52), the axial direction of the second rollers (521) is consistent with the length direction of the guide rod (4), the wheel surface of the second rollers (521) is in contact with the inner cylinder wall (23), and the two connecting plates (53) are respectively fixedly connected to the two corresponding first supporting plates (52).
3. The gastrointestinal foreign object extraction device of claim 2, wherein the support mechanism comprises:
the fixing sleeve (41), the said fixing sleeve (41) is fixed on guide arm (4) coaxially;
the movable sleeve (42) is arranged on the guide rod (4) on the right side of the fixed sleeve (41) in a sliding mode along the length direction;
the first rollers (431) are respectively arranged between the fixed sleeve (41) and the movable sleeve (42) through a plurality of supporting structures, and the supporting structures can enable the first rollers (431) to be always in contact with the inner cylinder wall (23).
4. The gastrointestinal foreign object extraction device of claim 3, wherein the support structure comprises:
the device comprises a first connecting rod (411) and a second connecting rod (421), wherein one end of the first connecting rod (411) is hinged to a fixed sleeve (41), one end of the second connecting rod (421) is hinged to a movable sleeve (42), the other end of the first connecting rod (411) and the other end of the second connecting rod (421) are hinged together through a first rotating shaft (43), and a first roller (431) is rotatably arranged on the first rotating shaft (43);
The first return spring (432), one end of first return spring (432) articulates on fixed sleeve (41), and the other end articulates on first pivot (43), initial condition, first return spring (432) are in and compress tightly the state.
5. The gastrointestinal foreign body removing device is characterized in that baffle plates (62) are fixedly arranged on the side edges, away from the axis of the cylindrical block (6), of the two arc-shaped guide blocks (61).
6. The gastrointestinal foreign body extraction device according to claim 5, wherein an electric air pump (31) is arranged on the fixing plate (3), and the electric air pump (31) is communicated with the cavity (21) through a pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110953005.6A CN113662642B (en) | 2021-08-19 | 2021-08-19 | Intestines and stomach foreign matter remove device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110953005.6A CN113662642B (en) | 2021-08-19 | 2021-08-19 | Intestines and stomach foreign matter remove device |
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| CN113662642B true CN113662642B (en) | 2022-07-29 |
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| CN202110953005.6A Active CN113662642B (en) | 2021-08-19 | 2021-08-19 | Intestines and stomach foreign matter remove device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4657020A (en) * | 1985-07-10 | 1987-04-14 | Jayco Pharmaceuticals | Method of using a foreign object protector hood |
| IL98944A0 (en) * | 1991-07-24 | 1992-07-15 | Hammer Mordechai | Device which widens and narrows for multiplying and transferring movement in space |
| ATE534337T1 (en) * | 2002-03-15 | 2011-12-15 | Gore & Ass | COUPLING SYSTEM USEFUL FOR PLACING IMPLANTS |
| US9364261B2 (en) * | 2013-05-14 | 2016-06-14 | Melvin G. Hector, JR. | Apparatus and method for removing a foreign object from a rectal cavity |
| CN107007337A (en) * | 2017-03-21 | 2017-08-04 | 宁波欧琳厨具有限公司 | A kind of foreign matter pick device |
| CN211934237U (en) * | 2020-02-25 | 2020-11-17 | 彭浩 | A foreign matter remove device for intestines and stomach branch of academic or vocational study |
| CN212140554U (en) * | 2020-03-19 | 2020-12-15 | 王永强 | Device is got to quick clamp of foreign matter in stomach that gastroenterology used |
| CN111493976A (en) * | 2020-05-20 | 2020-08-07 | 刘达 | Multifunctional foreign matter extractor for ear-nose-throat department |
| CN213525065U (en) * | 2020-09-15 | 2021-06-25 | 黄文� | Protection tube for assisting treatment under gastroscope |
| CN213525413U (en) * | 2020-11-05 | 2021-06-25 | 兰永廷 | Alimentary canal foreign matter remove device |
| CN112903948A (en) * | 2021-03-26 | 2021-06-04 | 威海海洋职业学院 | Multi-functional marine ranching environment monitoring device |
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