Foreign body forceps for digestive system department

Abstract

The invention belongs to the technical field of medical instruments, and relates to foreign body forceps for the digestive system department. The pair of foreign body forceps for the digestive system department comprises a handle and two clamping jaws, two sliding shafts are arranged in the handle in a sliding mode, the two sliding shafts are symmetrically arranged at one end of the handle, the number of the clamping jaws is two, and the two clamping jaws are rotationally arranged on the peripheral face of one sliding shaft in a sleeving mode respectively. A rotation driving assembly is arranged in the handle, and the output end of the rotation driving assembly is fixedly connected with the end, close to the sliding shaft, of the clamping jaw. A translation driving assembly is arranged in the handle, and the output end of the translation driving assembly is fixedly connected with the second lantern ring. The distance between the clamping jaws can be adjusted through the pull rod and the first cross rod, the clamping jaws can be made to horizontally move to clamp the foreign matter, and the clamping jaws are driven to rotate to clamp the foreign matter through the pull block, the pull rope and the second cross rod. The clamping mode can be selected according to the size and the shape of the foreign matter, so that medical staff can rapidly and firmly clamp the foreign matter.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments and relates to a foreign body forceps for gastroenterology. Background Art

[0002] Gastroenterology is a clinical tertiary discipline that mainly studies diseases of the esophagus, stomach, small intestine, large intestine, liver, gallbladder and pancreas. Gastroenterology has a wide variety of diseases, a wide range of medical knowledge, and complex and delicate operations. Digestive diseases are divided into five parts: gastrointestinal diseases, liver diseases, pancreatic and gallbladder diseases, endoscopy and other diseases. In gastroenterology treatment, foreign body forceps are often needed to clamp and remove foreign bodies, and to assist doctors in examining the inside of the patient's digestive organs.

[0003] The application with publication number CN109157275A proposes a foreign body forceps for gastroenterology, including a cannula, front and rear sides of the top of the cannula are fixedly connected with fixing plates, a fixing shaft is fixedly connected between the two fixing plates, a clamping claw is sleeved on the surface of the fixing shaft, and the clamping claw is provided with two, the bottoms of the two clamping claws are connected with a rotating rod, and the bottom ends of the rotating rods extend to the inside of the cannula, and the bottoms of the rotating rods are connected with a thin pull tube. The foreign body forceps for gastroenterology can use the ring to pull the thin pull tube by pulling the finger ring, and can use the rotating rod to indirectly pull the clamping claws to clamp the foreign body, and the cooperation of the pin and the card slot can fix the thin pull tube after clamping the foreign body, which can avoid the loosening of the thin pull tube when removing the foreign body and causing loose clamping, and also avoid the damage to the fixed person caused by the secondary clamping, and there is no need to always hold the thin pull tube when pulling out the foreign body, and the operation can be completed by one person, which is simple and convenient to operate.

[0004] However, the foreign body forceps only clamp the foreign body by rotating the jaws. The jaws of the foreign body forceps rotate to open and clamp, and the maximum opening angle is fixed and cannot be opened horizontally. If the foreign body is square or large, the foreign body cannot be firmly clamped. Therefore, a foreign body forceps that can adjust the jaw distance and select the clamping method according to the shape of the foreign body is needed.

[0005] In order to solve the above problems, the present invention provides a foreign body forceps for gastroenterology. Summary of the invention

[0006] In order to solve the problems existing in the background technology, the present invention provides a foreign body forceps for gastroenterology.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a foreign body forceps for gastroenterology, comprising: a handle and a clamping jaw, wherein two sliding shafts are slidably arranged inside the handle, and the two sliding shafts are symmetrically arranged at one end of the handle, and there are two clamping jaws, and the two clamping jaws are respectively rotatably sleeved on the outer circumference of a sliding shaft; a rotation drive component is arranged inside the handle, and the output end of the rotation drive component is fixedly connected to one end of the clamping jaw close to the sliding shaft; a second ring is also rotatably sleeved on the outer circumference of the rotating shaft, and a translation drive component is arranged inside the handle, and the output end of the translation drive component is fixedly connected to the second ring.

[0008] Furthermore, a slide rail is fixedly arranged inside the handle, two limit blocks are slidably arranged inside the slide rail, and two sides of the limit blocks are in sliding contact with two side edges of the slide rail; the two sliding shafts are fixedly connected to the corresponding limit blocks respectively.

[0009] Furthermore, a first ring is fixedly provided at the root of the two clamping jaws, the first ring is rotatably sleeved on the outer circumferential surface of the sliding shaft, and a torsion spring is fixedly provided between the first ring and the sliding shaft, the torsion spring enables the clamp to maintain a vertical state with the line connecting the two rotating shafts; a first cross bar is fixedly provided on the outside of the first ring, and the first cross bars all point to the middle of the handle.

[0010] Furthermore, the rotary drive assembly includes a pull rope, a pull block and a spring; one end of the pull rope is fixedly connected to the first cross bar, two limit holes are symmetrically opened on the pull block, two limit rods are symmetrically arranged inside the handle, the pull block is slidably connected to the limit rods through the limit holes, and a connecting block is fixedly arranged inside the handle, the connecting block is located on the side of the pull block facing away from the sliding axis, the spring is fixedly arranged between the pull block and the connecting block, and the elastic coefficient of the spring is smaller than the elastic coefficient of the torsion spring, so that the spring maintains a pull rope state.

[0011] Furthermore, a sliding hole is provided on the upper part of the handle, and the sliding hole is in an elongated strip shape. The upper part of the sliding hole pull block passes through the sliding hole and extends to the upper part of the handle, and the pull block is slidably connected to the sliding hole.

[0012] Furthermore, two pulley groups are symmetrically arranged inside the handle, and each pulley group includes a first pulley and a second pulley; a connecting plate is fixedly arranged on the upper part of the sliding shaft, the first pulley is fixedly arranged at an end of the connecting plate away from the sliding shaft, and the second pulley is rotatably arranged between the pull block and the sliding shaft, and the middle parts of the two pull ropes are respectively wound around the corresponding first pulley and the second pulley.

[0013] Furthermore, the translation drive assembly includes a second cross bar, a hinge plate, a connecting rod and a pull rod; there are two second cross bars, and the two second cross bars are respectively fixedly connected to the corresponding second rings, the hinge plate and the ends of the two second cross bars away from the second rings are hinged, the connecting rod is fixedly connected to the hinge plate, and the pull rod is fixedly connected to the end of the connecting rod away from the hinge plate; a through hole is provided on the pull block, and the end of the pull rod away from the connecting block is slidably connected in the through hole.

[0014] Furthermore, a thread is provided on the outer circumference of the pull rod, and a knob is threadedly connected to the outer circumference of the pull rod via the thread.

[0015] Furthermore, an adapter hole is provided on the handle, the adapter hole is located between the sliding hole and the clamping claw, the knob is rotatably arranged in the adapter hole, the outer circumference of the knob extends to the outside of the handle through the adapter hole, and the outer circumference of the knob is provided with anti-slip grooves.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the distance between the clamping jaws can be adjusted through the pull rod and the first cross bar, and the clamping jaws can be translated to clamp the foreign body, and the clamping jaws can be driven to rotate to clamp the foreign body through the pull block, the pull rope and the second cross bar. This allows the present invention to select a clamping method according to the size and shape of the foreign body, so that medical personnel can clamp the foreign body quickly and firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 The present invention Figure 1 A magnified view of part A in FIG.

[0019] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0020] Figure 4 The present invention Figure 3 A magnified view of part B in FIG.

[0021] Figure 5 The present invention Figure 3 The enlarged view of the C part in FIG.

[0022] Figure 6 It is a schematic diagram of the connection between the first sleeve ring, the second sleeve ring and the sliding shaft in the present invention;

[0023] Figure 7 It is a schematic diagram of the connection between the knob and the pull rod in the present invention;

[0024] Figure 8 It is a schematic diagram of the connection between the pull rope and the pull block in the present invention;

[0025] Fig. 9 It is a structural schematic diagram of the slide rail in the present invention.

[0026] In the figure: 1. handle; 2. slide rail; 3. limit block; 4. sliding shaft; 5. connecting plate; 6. first pulley; 7. first ring; 8. clamping claw; 9. first cross bar; 10. pull rope; 11. second pulley; 12. pull block; 13. limit hole; 14. through hole; 15. spring; 16. limit rod; 17. connecting block; 18. sliding hole; 19. second ring; 20. second cross bar; 21. hinged plate; 22. connecting rod; 23. pull rod; 24. thread; 25. knob; 26. adapter hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-Figure 8 As shown, the technical solution adopted by the present invention is as follows: a foreign body forceps for gastroenterology, comprising: a handle 1 and a clamp 8, wherein two sliding shafts 4 are slidably arranged inside the handle 1, and the two sliding shafts 4 are symmetrically arranged at one end of the handle 1, and the clamp 8 has two jaws, and the two jaws 8 are respectively rotatably sleeved on the outer circumference of one sliding shaft 4. A rotation drive component is arranged inside the handle 1, and the output end of the rotation drive component is fixedly connected to one end of the clamp 8 close to the sliding shaft 4. A second ring 19 is also rotatably sleeved on the outer circumference of the rotating shaft, and a translation drive component is arranged inside the handle 1, and the output end of the translation drive component is fixedly connected to the second ring 19. The clamp 8 can be driven to move horizontally by the translation drive component, which can not only make the clamp 8 move horizontally to clamp the square foreign body, but also adjust the distance between the clamps 8 by horizontal movement, and then drive the clamp 8 to rotate by the rotation drive component, so that the clamp 8 can quickly rotate and clamp according to the size of the foreign body.

[0029] The handle 1 is fixedly provided with a slide rail 2 inside, and two limit blocks 3 are slidably provided inside the slide rail 2, and the two sides of the limit blocks 3 are in sliding contact with the two side edges of the slide rail 2. The two sliding shafts 4 are respectively fixedly connected with the corresponding limit blocks 3. Through the arrangement of the limit blocks 3 and the slide rail 2, the sliding shaft 4 can move smoothly along the slide rail 2, and the angle of the sliding shaft 4 is maintained so that the sliding shaft 4 does not rotate, so as to facilitate the adjustment of the clamping jaws 8.

[0030] The roots of the two clamping jaws 8 are fixedly provided with a first collar 7, which is rotatably sleeved on the outer circumference of the sliding shaft 4, and a torsion spring is fixedly provided between the first collar 7 and the sliding shaft 4, and the torsion spring makes the clamping and the connecting line of the two rotating shafts in a vertical state. The first cross bar 9 is fixedly provided on the outside of the first collar 7, and the first cross bar 9 points to the middle of the handle 1. The rotation drive assembly includes a pull rope 10, a pull block 12 and a spring 15. One end of the pull rope 10 is fixedly connected to the first cross bar 9, and two limiting holes 13 are symmetrically provided on the pull block 12. Two limiting rods 16 are symmetrically provided inside the handle 1. The pull block 12 is slidably connected with the limiting rod 16 through the limiting holes 13, and a connecting block 17 is fixedly provided inside the handle 1, and the connecting block 17 is located on the side of the pull block 12 facing away from the sliding shaft 4. The spring 15 is fixedly provided between the pull block 12 and the connecting block 17, and the elastic coefficient of the spring 15 is less than the elastic coefficient of the torsion spring, so that the spring 15 remains in a stretched state. The torsion spring maintains the angle of the clamping jaw 8, so that when the clamping jaw 8 moves following the sliding shaft 4, the spring 15 will stretch or contract as needed, thereby keeping the pull rope 10 in a taut state, so that when the pull block 12 is pulled, the pull block 12 can pull the first cross bar 9 to rotate in time through the pull rope 10, so that the first ring 7 drives the clamping jaw 8 to clamp towards the middle.

[0031] The upper part of the handle 1 is provided with a sliding hole 18, which is in a long strip shape, and the upper part of the pull block 12 of the sliding hole 18 extends through the sliding hole 18 to the upper part of the handle 1, and the pull block 12 is slidably connected with the sliding hole 18. It is convenient for medical personnel to rotate and clamp foreign objects through the pull block 12.

[0032] Two pulley groups are symmetrically arranged inside the handle 1, each of which includes a first pulley 6 and a second pulley 11. A connecting plate 5 is fixedly arranged on the sliding shaft 4, the first pulley 6 is fixedly arranged at the end of the connecting plate 5 away from the sliding shaft 4, the second pulley 11 is rotatably arranged between the pull block 12 and the sliding shaft 4, and the middle parts of the two pull ropes 10 are respectively arranged on the corresponding first pulley 6 and second pulley 11. The pull rope 10 is limited by the first pulley 6 and the second pulley 11, so that the space inside the handle 1 is well utilized, and at the same time, the friction of the pull rope 10 can be avoided, thereby improving the comfort of operation.

[0033] The translation drive assembly includes a second crossbar 20, a hinge plate 21, a connecting rod 22 and a pull rod 23. There are two second crossbars 20, and the two second crossbars 20 are fixedly connected to the corresponding second rings 19 respectively. The hinge plate 21 and the ends of the two second crossbars 20 away from the second rings 19 are in a hinged relationship. The connecting rod 22 is fixedly connected to the hinge plate 21, and the pull rod 23 is fixedly connected to the end of the connecting rod 22 away from the hinge plate 21. A through hole 14 is provided on the pull block 12, and the end of the pull rod 23 away from the connecting block 17 is slidably connected in the through hole 14. A thread 24 is provided on the outer circumference of the pull rod 23, and a knob 25 is connected to the outer circumference of the pull rod 23 through the thread 24. The handle 1 is provided with an adapting hole 26, and the adapting hole 26 is located between the sliding hole 18 and the clamping claw 8. The knob 25 is rotatably arranged in the adapting hole 26. The outer peripheral surface of the knob 25 extends to the outside of the handle 1 through the adapting hole 26, and the outer peripheral surface of the knob 25 is provided with anti-slip grooves.

[0034] The pull rod 23 is limited by the through hole 14 so that the pull rod 23 is kept in a horizontal state. The medical staff can drive the pull rod 23 to move horizontally through the thread 24 by rotating the knob 25 with the thumb, so that the pull rod 23 pushes the hinge block forward or backward through the connecting rod 22, driving the two second cross bars 20 close to the hinge block to move forward or backward, so that the second cross bar 20 and the second ring 19 rotate as the center of the circle, and drive the sliding shaft 4 to move along the slide rail 2, so as to adjust the distance of the clamping jaws 8.

[0035] Working principle: When using, medical staff first select the appropriate clamping method according to the size and shape of the foreign body.

[0036] If the foreign body is large or small, the knob 25 can be rotated to drive the pull rod 23 to move through the thread 24. The pull rod 23 moves toward the clamping jaw 8, and the hinge block pushes the second cross bar 20, one end of which is close to the hinge block, to move toward the clamping jaw 8, so that the second cross bar 20 rotates with the second ring 19 as the center of the circle, and the second ring 19 pushes the sliding shaft 4 to move toward the two ends of the slide rail 2, so that the sliding shaft 4 drives the first ring 7 and the clamping jaw 8 to move backwards, thereby expanding the distance between the clamping jaws 8. In this process, due to the movement of the first ring 7, the first cross bar 9 also moves with it, so that one end of the pull rope 10 moves, but because the elastic coefficient of the spring 15 is less than the elastic coefficient of the torsion spring, and the spring 15 is in a stretched state, the spring 15 will shrink according to the change of the pull rope 10, and the angle of the clamping jaw 8 will not change.

[0037] On the contrary, if the knob 25 is rotated in the opposite direction, the pull rod 23 moves away from the clamping jaws 8, so that the pull rod 23 drives the hinge block to move through the connecting rod 22, so that the second cross bar 20 pulls the sliding shafts 4 closer to each other, and the clamping jaws 8 are closer to each other. At this time, the pull rope 10 is further tightened, and the pull rope 10 will further pull the spring 15 through the pull block 12, so that the spring 15 is further stretched, and the torsion spring still does not deform, so that the clamping jaws still remain perpendicular to the line connecting the two sliding shafts 4.

[0038] Then, the clamping method can be selected according to the shape of the foreign object, and the foreign object can be clamped. If the foreign object is square, the clamping jaw 8 can be clamped by translating. The knob 25 can be rotated further to drive the pull rod 23 to move away from the clamping jaw 8 through the thread 24, so that the pull rod 23 drives the clamping jaw 8 to move closer to each other through the connecting rod 22, the hinge block and the second cross bar 20, until the two side walls of the clamping jaw 8 only clamp the foreign object.

[0039] If the foreign object is irregular or thin, the clamping jaw 8 is rotated to clamp it. At this time, you only need to press the refrigerator with your thumb and pull the pull block 12, so that the pull block 12 pulls the pull rope 10. At this time, since the second cross bar 20 remains fixed, the sliding shaft 4 will not move, so that the pull rope 10 can pull the first ring 7 to rotate through the first cross bar 9, so that the clamping jaw 8 rotates to firmly clamp the foreign object.

[0040] By selecting the appropriate distance between the clamping jaws 8 and the clamping method according to the size and shape of the foreign object, the foreign object can be clamped quickly and firmly.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foreign body forceps for gastroenterology, comprising: The handle (1) and the clamping jaw (8) are characterized in that two sliding shafts (4) are slidably arranged inside the handle (1), and the two sliding shafts (4) are symmetrically arranged at one end of the handle (1); and there are two clamping jaws (8), and the two clamping jaws (8) are respectively rotatably sleeved on the outer peripheral surface of one sliding shaft (4); a rotation drive component is arranged inside the handle (1), and the output end of the rotation drive component is fixedly connected to one end of the clamping jaw (8) close to the sliding shaft (4); a second ring (19) is also rotatably sleeved on the outer peripheral surface of the rotating shaft, and a translation drive component is arranged inside the handle (1), and the output end of the translation drive component is fixedly connected to the second ring (19).

2. A foreign body forceps for gastroenterology according to claim 1, characterized in that: A slide rail (2) is fixedly arranged inside the handle (1), and two limit blocks (3) are slidably arranged inside the slide rail (2), and two sides of the limit blocks (3) are in sliding contact with two side edges of the slide rail (2); the two sliding shafts (4) are respectively fixedly connected to the corresponding limit blocks (3).

3. The foreign body forceps for gastroenterology according to claim 1, characterized in that: A first sleeve (7) is fixedly provided at the root of each of the two clamping jaws (8), the first sleeve (7) being rotatably sleeved on the outer peripheral surface of the sliding shaft (4), and a torsion spring is fixedly provided between the first sleeve (7) and the sliding shaft (4), the torsion spring enables the clamping jaws to maintain a vertical state with a line connecting the two rotating shafts; a first cross bar (9) is fixedly provided outside the first sleeve (7), the first cross bar (9) pointing to the middle of the handle (1).

4. The foreign body forceps for gastroenterology according to claim 3, characterized in that: The rotary drive assembly comprises a pull rope (10), a pull block (12) and a spring (15); one end of the pull rope (10) is fixedly connected to the first cross bar (9); two limit holes (13) are symmetrically provided on the pull block (12); two limit rods (16) are symmetrically arranged inside the handle (1); the pull block (12) is slidably connected to the limit rods (16) through the limit holes (13); a connecting block (17) is fixedly arranged inside the handle (1); the connecting block (17) is located on the side of the pull block (12) facing away from the sliding shaft (4); the spring (15) is fixedly arranged between the pull block (12) and the connecting block (17); and the elastic coefficient of the spring (15) is smaller than the elastic coefficient of the torsion spring, so that the spring (15) maintains the pull rope (10) state.

5. The foreign body forceps for gastroenterology according to claim 4, characterized in that: The upper part of the handle (1) is provided with a sliding hole (18), the sliding hole (18) is in the shape of an elongated strip, the upper part of the sliding hole (18) pull block (12) passes through the sliding hole (18) and extends to the upper part of the handle (1), and the pull block (12) is slidably connected to the sliding hole (18).

6. The foreign body forceps for gastroenterology according to claim 5, characterized in that: Two pulley groups are symmetrically arranged inside the handle (1), and each pulley group includes a first pulley (6) and a second pulley (11); a connecting plate (5) is fixedly arranged on the upper side of the sliding shaft (4), the first pulley (6) is fixedly arranged at one end of the connecting plate (5) away from the sliding shaft (4), and the second pulley (11) is rotatably arranged between the pulling block (12) and the sliding shaft (4), and the middle parts of the two pulling ropes (10) are respectively arranged on the corresponding first pulley (6) and second pulley (11).

7. The foreign body forceps for gastroenterology according to claim 6, characterized in that: The translation drive assembly comprises a second cross bar (20), a hinge plate (21), a connecting rod (22) and a pull rod (23); there are two second cross bars (20), the two second cross bars (20) are respectively fixedly connected to the corresponding second rings (19), the hinge plate (21) and the ends of the two second cross bars (20) away from the second rings (19) are in a hinged relationship, the connecting rod (22) is fixedly connected to the hinge plate (21), and the pull rod (23) is fixedly connected to the end of the connecting rod (22) away from the hinge plate (21); a through hole (14) is provided on the pull block (12), and the end of the pull rod (23) away from the connecting block (17) is slidably connected in the through hole (14).

8. The foreign body forceps for gastroenterology according to claim 7, characterized in that: A thread (24) is provided on the outer circumference of the pull rod (23), and a knob (25) is connected to the outer circumference of the pull rod (23) via the thread (24).

9. The foreign body forceps for gastroenterology according to claim 8, characterized in that: The handle (1) is provided with an adapting hole (26), the adapting hole (26) being located between the sliding hole (18) and the clamping claw (8), the knob (25) being rotatably arranged in the adapting hole (26), the outer peripheral surface of the knob (25) extending to the outside of the handle (1) through the adapting hole (26), and the outer peripheral surface of the knob (25) being provided with anti-slip grooves.

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