Biopsy forceps convenient to clean

Abstract

The utility model relates to the technical field of biopsy forceps, and discloses a pair of biopsy forceps convenient to clean, which comprises a pull rod, a movable rod is hinged to the end face of the pull rod, a movable scissor blade is hinged to one end, far away from the pull rod, of the movable rod, and a limiting assembly is arranged outside the pull rod. According to the biopsy forceps convenient to clean, through the arranged limiting assembly, the outer holding barrel is divided into the first half outer holding barrel and the second half outer holding barrel, an inner cavity is completely opened, a cleaning tool can make direct contact with the inner surfaces of the barrels, cleaning dead angles are eliminated, the separated barrel structure is clear at a glance, medical staff can directly observe whether all parts are cleaned in place or not, and the cleaning efficiency is improved. The limiting ring can be gradually supported by the outer wall through the design of the horn mouth, the limiting rod provides additional fixation, it is ensured that all the components are firm and detachable, it is ensured that the first half outer holding barrel and the second half outer holding barrel are firmly combined, and looseness or displacement cannot happen in the using process.

Description

Technical Field

[0001] This utility model relates to the field of biopsy forceps technology, specifically a biopsy forceps that is easy to clean. Background Technology

[0002] Biopsy forceps are an indispensable tool for obtaining pathological specimens in endoscopic examinations. If contaminated biopsy forceps are used to obtain specimens, it will lead to nosocomial infections. Existing biopsy forceps have a complex structure, and it is inconvenient for staff to clean them after use. The cleaning process is cumbersome and greatly increases the workload of staff.

[0003] According to a biopsy forceps that is easy to clean (publication number: CN213249326U), the above application realizes a biopsy forceps that is easy to clean through the mutual cooperation of an outer grip, a pull rod, a pull ring, a first connecting block, a slider, a first connecting shaft, a drive rod, a second connecting shaft, a second connecting block, a movable scissor blade, a stabilizing block, a fixed scissor blade, a central shaft, a fixing block, a threaded rod, a rotating block, and a stop block.

[0004] However, in the actual cleaning process of the above-mentioned biopsy forceps, the outer grip is a long cylinder with a long inner wall and depth, which increases the difficulty of cleaning and requires a specially made long-handled brush or high-pressure water jet equipment. At the same time, it is difficult to visually confirm whether the internal structure of the cylinder is thoroughly cleaned, especially when the length is long, which increases the difficulty of post-cleaning inspection. In view of this, we propose a biopsy forceps that is easy to clean. Utility Model Content

[0005] The purpose of this invention is to provide a biopsy forceps that is easy to clean, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a biopsy forceps that is easy to clean, comprising a pull rod, a movable rod hinged to the end face of the pull rod, a movable scissor blade hinged to the end of the movable rod away from the pull rod, and a limiting component provided on the outside of the pull rod, the limiting component comprising:

[0007] A semi-outer grip tube one, which abuts against a semi-outer grip tube two, and a flared mouth is fixed on the end face of the semi-outer grip tube one;

[0008] A limiting ring is sleeved on the outer wall of the flared mouth, and an annular groove is formed on the side wall of the limiting ring;

[0009] A limiting rod, with hooks fixedly connected to both ends of the limiting rod, the hooks engaging with an annular groove;

[0010] A limiting plug is disposed on the inner wall of the semi-outer grip cylinder, and the limiting plug is sleeved with the pull rod.

[0011] Preferably, the pull rod passes through the first and second semi-outer grip cylinders, and a pull ring is fixedly connected to the end of the pull rod away from the moving scissor blade.

[0012] Preferably, the movable scissor blade is hinged to the stationary scissor blade, and the stationary scissor blade is inserted into the end face of the flared opening.

[0013] Preferably, the flared opening has a large-diameter end and a small-diameter end, with the large-diameter end located at the end near the semi-outer grip cylinder, so that the limiting ring can be gradually tightened by the outer wall of the flared opening.

[0014] Preferably, the number of flared openings is provided in two sets, and the two sets of flared openings are symmetrically arranged at both ends of the semi-outer grip cylinder, and the flared openings are respectively used to engage with the limiting ring.

[0015] Preferably, a limiting groove is formed on the inner wall of the semi-outer grip cylinder, and a convex ring is fixedly connected to the outer wall of the limiting plug, with the limiting groove engaging with the convex ring.

[0016] Compared with the prior art, this utility model provides a biopsy forceps that is easy to clean and has the following beneficial effects:

[0017] 1. This easy-to-clean biopsy forceps, through the setting of limiting components, divides the outer grip into half-outer grip one and half-outer grip two. The inner cavity is completely open, allowing the cleaning tool to directly contact the inner surface of the barrel, eliminating cleaning dead corners. The separated barrel structure is clear at a glance, and medical staff can directly observe whether each component is cleaned properly, avoiding residual contaminants. The flared design allows the limiting ring to be gradually tightened by the outer wall, and the limiting rod provides additional fixation, ensuring that each component is firm and detachable, ensuring that half-outer grip one and half-outer grip two are firmly connected and will not loosen or shift during use.

[0018] The biopsy forceps, through the design of a convex ring and a limiting groove, prevents the limiting plug from shifting during use, ensuring that the pull rod, movable rod, and moving scissor blades move along the designed trajectory, and that the moving scissor blades maintain proper contact with the stationary scissor blades.

[0019] 2. This facilitates precise shearing and cutting, ensuring that the cutting accuracy is not affected by component position shifts. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0021] Figure 2 This is an exploded view of the main body of this utility model;

[0022] Figure 3 This is a schematic diagram of the limiting rod structure of this utility model;

[0023] Figure 4 This utility model Figure 3 Schematic diagram of the structure of region A in the middle;

[0024] Figure 5 This is a schematic diagram of the moving scissor blade structure of this utility model.

[0025] In the diagram: 1. Pull rod; 2. Movable rod; 3. Moving scissor blade; 4. Stationary scissor blade; 5. Limiting assembly; 501. Semi-outer grip tube one; 502. Semi-outer grip tube two; 503. Trumpet mouth; 504. Limiting ring; 505. Annular groove; 506. Limiting rod; 507. Hook; 6. Limiting plug; 7. Pull ring; 8. Limiting groove; 9. Protruding ring. Detailed Implementation

[0026] like Figures 1-5 As shown, this utility model provides a technical solution: a biopsy forceps that is easy to clean, including a pull rod 1, a movable rod 2 hinged to the end face of the pull rod 1, a movable scissor blade 3 hinged to the end of the movable rod 2 away from the pull rod 1, the movable scissor blade 3 being hinged to a stationary scissor blade 4, and a limiting component 5 provided on the outside of the pull rod 1, the limiting component 5 including a semi-outer grip tube 1 501, a semi-outer grip tube 2 502, a flared mouth 503, a limiting ring 504, an annular groove 505, a limiting rod 506, and a gripping hook 507.

[0027] In one embodiment of this utility model, a semi-outer grip tube 1 501 abuts against a semi-outer grip tube 2 502. A flared mouth 503 is fixed on the end face of the semi-outer grip tube 1 501. A stationary scissor blade 4 is inserted into the end face of the flared mouth 503. The flared mouth 503 is provided with a large diameter end and a small diameter end. The large diameter end is provided at one end close to the semi-outer grip tube 1 501, so that the limiting ring 504 can be gradually tightened by the outer wall of the flared mouth 503. There are two sets of flared mouths 503. The two sets of flared mouths 503 are symmetrically arranged at both ends of the semi-outer grip tube 1 501. The flared mouths 503 are respectively used to engage with the limiting ring 504.

[0028] The limiting ring 504 is sleeved on the outer wall of the flared mouth 503. The side wall of the limiting ring 504 is provided with an annular groove 505. The two ends of the limiting rod 506 are fixedly connected with hooks 507. The hooks 507 are engaged with the annular groove 505. The limiting plug 6 is set on the inner wall of the first semi-outer grip tube 501. The limiting plug 6 is sleeved with the pull rod 1. The pull rod 1 passes through the first semi-outer grip tube 501 and the second semi-outer grip tube 502. The end of the pull rod 1 away from the moving scissor blade 3 is fixedly connected with a pull ring 7.

[0029] Pulling the ring 7 causes the lever 1 to move, which in turn pulls the movable rod 2, causing one end of the movable scissor blade 3 to move toward the ring 7. The movable scissor blade 3 then rotates around the position where it is hinged with the stationary scissor blade 4, and the movable scissor blade 3 and the stationary scissor blade 4 work together to achieve the cutting action.

[0030] When disassembling the biopsy forceps, press the limiting rings 504 on both sides towards the middle of the semi-outer gripping cylinder 501, causing the limiting rings 504 to move slightly towards the middle of the semi-outer gripping cylinder 501. This disengages the gripping hooks 507 from the annular grooves 505, allowing the limiting rod 506 to be removed. Then remove the gripping hooks 507 on both sides, thus separating the semi-outer gripping cylinder 501 from the semi-outer gripping cylinder 502. Since the stationary scissor blade 4, the moving scissor blade 3, the movable rod 2, and the pull rod 1 are all open hinges, therefore... This allows for quick separation of the stationary scissor blade 4, the movable scissor blade 3, the movable rod 2, and the pull rod 1. Then, the pull rod 1 can be removed from the limiting plug 6, thus completing the disassembly of the biopsy forceps. By dividing the outer grip into a semi-outer grip 1 501 and a semi-outer grip 2 502, the inner cavity is completely open, allowing the cleaning tools to directly contact the inner surface of the cylinder, eliminating cleaning dead corners. The separated cylinder structure is clearly visible, and medical personnel can directly observe whether each component is cleaned properly, avoiding residual contaminants.

[0031] When assembling biopsy forceps, insert the pull rod 1 into the limiting plug 6, and then assemble the stationary scissor blade 4, the movable scissor blade 3, the movable rod 2, and the pull rod 1 in sequence. Then, fit the first half-outer grip tube 501 and the second half-outer grip tube 502 onto the outer wall of the limiting plug 6. Insert the limiting ring 504 into the flared openings 503 on both sides. Finally, fix the positions of the two sets of limiting plugs 6 with the limiting rod 506. The design of the flared opening 503 allows the limiting ring 504 to be gradually tightened by the outer wall. The limiting rod 506 provides additional fixation to ensure that each component is firm and detachable, and to ensure that the first half-outer grip tube 501 and the second half-outer grip tube 502 are firmly connected and will not loosen or shift during use.

[0032] In addition, a limiting groove 8 is provided on the inner wall of the semi-outer grip tube 501, and a convex ring 9 is fixedly connected to the outer wall of the limiting plug 6. The limiting groove 8 and the convex ring 9 are engaged. The setting of the limiting groove 8 and the convex ring 9 ensures that the limiting plug 6 will not shift during use. If the limiting plug 6 shifts, it may cause the pull rod 1 to run unsmoothly, thereby affecting the accuracy of the biopsy forceps and the overall operating performance of the tool. After the limiting plug 6 is fixed, it can ensure that the pull rod 1, the movable rod 2, and the movable scissor blade 3 move according to the designed trajectory. The cutting action between the movable scissor blade 3 and the stationary scissor blade 4 can remain accurate and will not affect the cutting accuracy due to the displacement of the component position.

[0033] In this invention, during use, pulling the pull ring 7 drives the pull rod 1 to move. The pull rod 1 pulls the movable rod 2, causing one end of the movable scissor blade 3 to move towards the pull ring 7. The movable scissor blade 3 then rotates around its hinged position with the stationary scissor blade 4. The movable scissor blade 3 and the stationary scissor blade 4 cooperate to achieve the cutting action. When disassembling the biopsy forceps, the limiting rings 504 on both sides are pressed towards the middle of the semi-outer gripping cylinder 501, causing the limiting rings 504 to move slightly towards the middle of the semi-outer gripping cylinder 501. The gripping hook 507 is then disengaged from the annular groove 505, and the limiting rod 506 is removed. Then, the gripping hooks 507 on both sides are removed, thereby allowing the semi-outer gripping cylinder 501 to open. 501 is separated from the second semi-outer grip tube 502, dividing the outer grip tube into the first semi-outer grip tube 501 and the second semi-outer grip tube 502. The inner cavity is completely open, allowing the cleaning tool to directly contact the inner surface of the tube, eliminating cleaning dead corners. The separated tube structure is clearly visible, and medical staff can directly observe whether each component is cleaned properly, avoiding residual contaminants. The design of the flared mouth 503 allows the limiting ring 504 to be gradually tightened by the outer wall when assembling the biopsy forceps. The limiting rod 506 provides additional fixation, ensuring that each component is firm and detachable, and ensuring that the first semi-outer grip tube 501 and the second semi-outer grip tube 502 are firmly connected and will not loosen or shift during use.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A biopsy forceps that is easy to clean, comprising a pull rod (1), wherein a movable rod (2) is hinged to the end face of the pull rod (1), and a movable scissor blade (3) is hinged to the end of the movable rod (2) away from the pull rod (1), characterized in that: The outer part of the pull rod (1) is provided with a limiting assembly (5), the limiting assembly (5) comprises: The half outer cylinder one (501) is in abutment with the half outer cylinder two (502), and the end face of the half outer cylinder one (501) is fixed with a trumpet mouth (503); The limiting ring (504) is sleeved on the outer wall of the trumpet mouth (503), and the side wall of the limiting ring (504) is provided with an annular groove (505); The limiting rod (506) is fixedly connected with a grappling hook (507) at both ends, and the grappling hook (507) is clamped with the annular groove (505); The limiting plug (6) is arranged on the inner wall of the half outer cylinder one (501), and the limiting plug (6) is sleeved with the pull rod (1).

2. The easy cleaning biopsy forceps according to claim 1, wherein: The pull rod (1) penetrates the half outer cylinder one (501) and the half outer cylinder two (502), and the end of the pull rod (1) away from the moving scissors blade (3) is fixedly connected with a pull ring (7).

3. The easy cleaning biopsy forceps according to claim 1, wherein: The moving scissors blade (3) is hinged with the static scissors blade (4), and the static scissors blade (4) is inserted into the end face of the trumpet mouth (503).

4. The easy cleaning biopsy forceps according to claim 1, wherein: The trumpet mouth (503) is provided with a large diameter end and a small diameter end, and the large diameter end is arranged at one end close to the half outer cylinder one (501).

5. The easy cleaning biopsy forceps according to claim 1, wherein: The number of the trumpet mouth (503) is two groups, and two groups of the trumpet mouth (503) are symmetrically arranged at both ends of the half outer cylinder one (501).

6. The easy cleaning biopsy forceps of claim 1, wherein: The inner wall of the half outer cylinder one (501) is provided with a limiting groove (8), the outer wall of the limiting plug (6) is fixedly connected with a convex ring (9), and the limiting groove (8) is clamped with the convex ring (9).

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