Bladder tunnel forceps

Abstract

The utility model provides a pair of bladder tunnel forceps, which solves the problems of use safety and the like of bladder forceps, and comprises a pair of mutually hinged forceps bodies, a holding part is arranged at one end of each forceps body, a forceps clip part is arranged at the other end of each forceps body, each forceps clip part is semi-cylindrical, the end head and the corner of each forceps clip part are subjected to rounding treatment, and a concave clamping groove is formed in the opposite side of each forceps clip part. Occluding teeth are distributed at the bottom of the clamping groove, and the occluding teeth between the oppositely arranged forceps holder parts are meshed with each other. The utility model has the advantages of high use safety, compact structure and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a bladder tunnel forceps. Background Art

[0002] Bladder forceps are medical devices mainly used for the auxiliary operation of cystoscopes. The design structure of bladder forceps is special, generally consisting of a curved metal rod and a gripper. The two ends of the gripper have sharp gripping mouths. The main function of bladder forceps is to grip the diseased tissues or foreign bodies in the bladder and then remove or excise them. During cystoscopic surgery, bladder forceps can help doctors complete the examination, treatment, and surgery of the bladder interior. In the actual use process, the corners at the end of the existing bladder forceps are too sharp, which is likely to cause secondary damage to the diseased part when inserted into the body. In order to reduce the harm to the human body, the operation amplitude can only be reduced during the operation of the existing bladder forceps, which in turn affects the operation efficiency of surgical examination.

[0003] In order to solve the deficiencies of the existing technology, people have carried out long-term explorations and proposed various solutions. For example, a Chinese patent document discloses a large tissue extraction forceps under cystoscope [202110645484.5], which includes a forceps rod, a forceps head connected to one end of the forceps rod, and an operation part connected to the other end of the forceps rod. The forceps head includes: a pair of A forceps arms rotatably connected to the end of the forceps rod; a pair of B forceps arms rotatably connected to the end of the forceps rod; the operation part includes: a control mechanism respectively connected to the A forceps arms and the B forceps arms to control the simultaneous rotation of the A forceps arms and the B forceps arms.

[0004] The above solution solves the problem of damage to the human body when the bladder forceps are used to pick up objects to a certain extent, but there are still many deficiencies in this solution, such as limited surgical operation range and affecting operation efficiency. Summary of the Invention

[0005] The purpose of the present utility model is to provide a bladder tunnel forceps with reasonable design and no impact on operation efficiency for the above problems.

[0006] To achieve the above purpose, the present utility model adopts the following technical scheme: A bladder tunnel forceps includes a pair of forceps bodies hinged to each other. One end of the forceps body is provided with a holding part and the other end is provided with a forceps clamping part. The forceps clamping part is semi-cylindrical and the end and corners are rounded. A concave clamping groove is opened on one side of the opposite forceps clamping parts. Biting teeth are distributed at the bottom of the clamping groove, and the biting teeth between the opposite forceps clamping parts mesh with each other.

[0007] In the above-mentioned bladder tunnel forceps, the forceps body includes a straight portion and a bent portion bent relative to the straight portion. The included angle between the straight portion and the bent portion is 5-20°. The clamping portion is arranged at the end of the bent portion. The hinge joint of the forceps body is arranged in the middle of the straight portion, and the holding portion is arranged at the end of the straight portion.

[0008] In the above-mentioned bladder tunnel forceps, the holding portion adopts an asymmetric structure. The distance between the holding portion of one forceps body and the hinge joint is less than the distance between the holding portion of the other forceps body and the hinge joint. The holding portions are respectively in a ring structure.

[0009] In the above-mentioned bladder tunnel forceps, the bottom of the clamping groove of the clamping portion and the edge of the port are rounded. The distance between the occluding teeth and the inner side of the clamping groove is 0.5-1.8 mm. The occluding teeth have equally spaced locking teeth, and the locking teeth are in a herringbone or serrated shape.

[0010] In the above-mentioned bladder tunnel forceps, the forceps body is made of stainless steel, and the part of the forceps body near the holding portion adopts a hollow structure.

[0011] In the above-mentioned bladder tunnel forceps, an anti-detachment portion protruding outward is arranged at the part of the forceps body near the holding portion, and the anti-detachment portion is in a hook shape.

[0012] In the above-mentioned bladder tunnel forceps, anti-slip bumps integrally formed with the forceps body are distributed on the outer side of the holding portion of the forceps body.

[0013] In the above-mentioned bladder tunnel forceps, hinge platforms are respectively arranged at the hinge joints of the forceps body. An articulated shaft is rotatably connected between the hinge platforms, and an elastic reset component is arranged between the articulated shaft and the hinge platforms.

[0014] In the above-mentioned bladder tunnel forceps, the elastic reset component includes a reset cavity arranged on the opposite sides of the hinge platforms. The port of the reset cavity is closed by a sealing cover. The sealing cover and the articulated shaft are fixedly connected by a threaded member. A reset torsion spring is installed between the bottom of the reset cavity and the sealing cover.

[0015] In the above-mentioned bladder tunnel forceps, locking grooves arranged in central symmetry are respectively formed at the bottom of the reset cavity and the inner side of the sealing cover. The ends of the reset torsion spring are inserted into the locking grooves.

[0016] Compared with the existing technology, the advantages of the present utility model are as follows: The overall clamping portion is rounded, and its occluding teeth are hidden in the clamping groove, so that a larger movement amplitude can be achieved during the clamping action, ensuring the surgical operation efficiency; the forceps body is in a bent structure, and the change amplitude of the included angle of the clamping portion can be reduced during the clamping action, avoiding shearing and tearing of human tissues; a reset torsion spring is built in at the hinge joint of the forceps body, which can provide a certain pre-tightening force to maintain the clamping stability of the tunnel forceps. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the present utility model;

[0018] Figure 2 is a schematic structural view of the clamping part of the present utility model;

[0019] Figure 3 is a structural sectional view of the clamping part of the present utility model;

[0020] Figure 4 is a structural sectional view of the hinge joint of the present utility model;

[0021] In the figure, there are pliers body 1, straight part 11, bent part 12, holding part 2, clamping part 3, clamping groove 4, engaging teeth 5, locking teeth 51, anti - detachment part 6, anti - slip bumps 7, hinge platform 8, hinge shaft 81, reset cavity 82, sealing cover 83, reset torsion spring 84, and locking groove 85. Specific Embodiment

[0022] The following further elaborates on the present utility model in detail in conjunction with the accompanying drawings and specific embodiments.

[0023] As Figures 1-4 shown, a bladder tunnel forceps includes a pair of pliers bodies 1 hinged to each other. One end of the pliers body 1 is provided with a holding part 2 and the other end is provided with a clamping part 3. The pliers body 1, the holding part 2, and the clamping part 3 are integrally formed, and can be assembled by hinging with threaded parts during assembly. Among them, the clamping part 3 is semi - cylindrical and the ends and corners are rounded to avoid scratching human tissues. A concave clamping groove 4 is formed on one side of the clamping part 3 opposite to each other. The engaging teeth 5 are distributed at the bottom of the clamping groove 4. The engaging teeth 5 are isolated from the edge of the clamping groove 4 through this clamping groove 4 to avoid direct contact between the engaging teeth 5 and the bladder inner wall during the clamping action. The engaging teeth 5 between the relatively arranged clamping parts 3 mesh with each other to provide a clamping moment, ensuring stability during sampling of the diseased part.

[0024] Specifically, different from the conventional clamp structure, the pliers body 1 in this application includes a straight part 11 and a bent part 12 bent relative to the straight part 11. The included angle between the straight part 11 and the bent part 12 is 5 - 20°. The clamping part 3 is arranged at the end of the bent part 12. The hinge joint of the pliers body 1 is arranged in the middle of the straight part 11, and the holding part 2 is arranged at the end of the straight part 11. When the pliers bodies 1 rotate relative to each other, the bent part 12 can reduce the change range of the included angle of the clamping part 3, making the meshing movement track of the engaging teeth 5 inside tend to be a straight line, thereby avoiding excessive local shear moment from affecting the clamping effect.

[0025] In depth, the holding part 2 adopts an asymmetric structure, which is more in line with the operating habits of the operator's hand. The distance between the holding part 2 of one pliers body 1 and the hinge is less than the distance between the holding part 2 of the other pliers body 1 and the hinge. The holding parts 2 are respectively in a ring structure. When in use, after the fingers are inserted into the holding part 2, it has a good anti - detachment effect.

[0026] Furthermore, the bottom and the port edge of the clamping groove 4 of the clamping part 3 are rounded off to be consistent with the clamping part 3. The distance between the occluding teeth 5 and the inner side of the clamping groove 4 is 0.5 - 1.8 mm. There is enough cavity left in the clamping groove 4 to facilitate the sampling operation; the occluding teeth 5 have equally - spaced teeth 51, and the teeth 51 are in a herringbone or serrated shape. When the teeth 51 are meshed staggeredly, the folded - angle structure has a high clamping stability.

[0027] Even further, the pliers body 1 is made of stainless steel material for convenient overall disinfection treatment. The pliers body 1 is in a hollowed - out structure near the holding part 2, realizing the lightweight of the overall structure of the tunneling forceps while not affecting the structural strength.

[0028] In addition, an anti - detachment part 6 protruding outward is arranged on the pliers body 1 near the holding part 2. The anti - detachment part 6 is in a hook shape. When in use, the fingers are inserted into the holding part 2, and the index finger or the middle finger contacts and presses against the anti - detachment part 6, facilitating the application of separation or clamping torque.

[0029] At the same time, anti - slip bumps 7 integrally formed with the pliers body 1 are distributed on the outer side of the holding part 2 of the pliers body 1. It can achieve a good anti - slip effect without covering an additional anti - slip layer on the pliers body 1. The anti - slip bumps 7 can also be replaced with a stripe structure.

[0030] Visibly, hinge platforms 8 are respectively arranged at the hinge joints of the pliers body 1. An articulated shaft 81 is rotatably connected between the hinge platforms 8. An elastic reset component is arranged between the articulated shaft 81 and the hinge platforms 8 to provide a certain reset torque. When the pliers bodies 1 are separated from each other, the articulated shaft 81 assists them to close, improving the clamping stability of the clamping part 3.

[0031] Obviously, different from the conventional elastic structure, the elastic reset component in this application includes a reset cavity 82 arranged on the opposite sides of the hinge platforms 8. The port of the reset cavity 82 is closed by a sealing cover 83. The sealing cover 83 and the articulated shaft 81 are fixedly connected by a threaded part. A reset torsion spring 84 is installed between the bottom of the reset cavity 82 and the sealing cover 83. The reset torsion spring 84 provides a closing pre - tightening force for the pliers body 1 on the one hand, and on the other hand, its own elasticity ensures the fitting tightness of the hinge platforms 8, ensuring accurate coincidence when the clamping part 3 is closed.

[0032] Preferably, locking grooves 85 arranged in central symmetry are respectively formed at the bottom of the reset cavity 82 and the inner side of the sealing cover 83, and the ends of the reset torsion spring 84 are inserted into the locking grooves 85. The clamping positions of the ends of the reset torsion spring 84 are adjusted during the assembly of the sealing cover 83, so as to adjust the pre-tightening force provided by the reset torsion spring 84 within a suitable range without affecting the normal rotational opening and closing lubricity of the pliers body 1.

[0033] In summary, the principle of this embodiment is as follows: the pliers bodies 1 rotate and open and close relative to each other, the plier clamping parts 3 at their ends are integrally chamfered, and at the same time, their engaging teeth 5 are hidden in the clamping grooves 4, so as to avoid direct contact between the clamping grooves 4 and the inner wall of the bladder during the opening and closing clamping actions, thereby avoiding damage to the human body during the surgical operation.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains may make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0035] Although terms such as pliers body 1, straight part 11, bent part 12, holding part 2, plier clamping part 3, clamping groove 4, engaging tooth 5, locking tooth 51, anti-detachment part 6, anti-slip bump 7, hinge platform 8, hinge shaft 81, reset cavity 82, sealing cover 83, reset torsion spring 84, locking groove 85 are used more frequently in this article, the possibility of using other terms is not excluded. Using these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A bladder tunnel forceps, comprising a pair of mutually hinged forceps bodies (1), wherein one end of the forceps body (1) is provided with a gripping portion (2) and the other end is provided with a clamping portion (3), characterized in that: The clamping part (3) is semi-cylindrical and has rounded ends and corners. A concave clamping groove (4) is provided on the opposite side of the clamping part (3). Engaging teeth (5) are distributed at the bottom of the clamping groove (4). The engaging teeth (5) between the clamping parts (3) arranged opposite to each other mesh with each other.

2. A bladder tunnel forceps according to claim 1, characterized in that: The pliers body (1) comprises a straight portion (11) and a bent portion (12) bent relative to the straight portion (11), the angle between the straight portion (11) and the bent portion (12) is 5-20°, the clamping portion (3) is arranged at the end of the bent portion (12), the hinge of the pliers body (1) is arranged in the middle of the straight portion (11), and the gripping portion (2) is arranged at the end of the straight portion (11).

3. A bladder tunnel forceps according to claim 1, characterized in that: The gripping portion (2) adopts an asymmetric structure, wherein the distance between the gripping portion (2) of one pliers body (1) and the hinge is smaller than the distance between the gripping portion (2) of the other pliers body (1) and the hinge, and the gripping portions (2) are respectively annular structures.

4. The bladder tunnel forceps according to claim 1, characterized in that: The bottom of the clamping groove (4) of the clamping part (3) and the edge of the port are chamfered, the distance between the engaging teeth (5) and the inner side of the clamping groove (4) is 0.5-1.8 mm, the engaging teeth (5) have equidistantly arranged latch teeth (51), and the latch teeth (51) are in a herringbone shape or a sawtooth shape.

5. The bladder tunnel forceps according to claim 1, characterized in that: The pliers body (1) is made of stainless steel, and the pliers body (1) has a hollow structure near the gripping portion (2).

6. The bladder tunnel forceps according to claim 1, characterized in that: The pliers body (1) is provided with an outwardly protruding anti-slip portion (6) near the gripping portion (2), and the anti-slip portion (6) is in a hook shape.

7. The bladder tunnel forceps according to claim 1, characterized in that: The gripping portion (2) of the pliers body (1) is provided with anti-slip protrusions (7) formed integrally with the pliers body (1) on the outer side thereof.

8. The bladder tunnel forceps according to claim 1, characterized in that: The hinged parts of the clamp body (1) are respectively provided with hinged platforms (8), the hinged platforms (8) are rotatably connected with hinge shafts (81), and an elastic reset component is provided between the hinge shaft (81) and the hinged platform (8).

9. The bladder tunnel forceps according to claim 8, characterized in that: The elastic reset assembly comprises a reset chamber (82) arranged on the opposite side of the hinge platform (8), the port of the reset chamber (82) is closed by a sealing cover (83), the sealing cover (83) and the hinge shaft (81) are connected and fixed by a screw member, and a reset torsion spring (84) is installed between the bottom of the reset chamber (82) and the sealing cover (83).

10. The bladder tunnel forceps according to claim 9, characterized in that: The bottom of the reset chamber (82) and the inner side of the sealing cover (83) are respectively provided with locking buckle grooves (85) arranged in a central symmetrical manner, and the end of the reset torsion spring (84) is inserted into the locking buckle groove (85).

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