Locking assembly for grabbing forceps for otolaryngology department

Abstract

The utility model discloses a locking assembly for grabbing forceps in the ear-nose-throat department. The locking assembly is located at one end of one clamp arm of the grabbing clamp so as to lock opening and closing of the grabbing clamp, and comprises a locking head fixedly connected to the top of the clamp arm of the grabbing clamp; and the round bar is integrally arranged in the locking head in a penetrating manner. When the grabbing clamp is used for holding tightly, the top of one clamp arm of the grabbing clamp can push the round bar to move in the locking head to enable the grabbing head to be closed for grabbing, at the moment, when the lock hole moves to the position below the lock chamber, the compressed spring can push the baffle ring to enable the lock column to move downwards to be inserted into the lock hole, and the round bar cannot move front and back; at the moment, the grabbing head grabs the foreign matter and is tightly closed and locked, so that it is guaranteed that the foreign matter can be smoothly taken out by pulling the grabbing clamp, the probability of accidental loosening and falling of the clamp arms is reduced, the risk and complexity of taking out the foreign matter are reduced, and the precision and efficiency of taking out the foreign matter are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical supplies, in particular to a locking assembly for grabbing forceps in the ENT department. Background Art

[0002] The locking assembly for ENT grasping forceps is a medical device, which is usually used in ENT surgery to help doctors to grasp and manipulate tissues accurately. This locking assembly is usually used in conjunction with grasping forceps to achieve grasping and locking functions through mechanical or pneumatic control.

[0003] The existing ENT grasping forceps are composed of a forceps arm, a slender catheter and a grasping head. When the forceps arms are combined, the round bar in the catheter will extend to contact the grasping head, so that the upper and lower clamping jaws of the grasping head are closed to grasp the foreign body. The premise for the grasping head to be closed and pulled out is that the doctor always holds the forceps arm tightly. During the grasping and outward pulling process, the forceps arm may accidentally loosen, causing the foreign body to fall off when being pulled, increasing the risk and complexity of removing the foreign body, and reducing the accuracy and efficiency of removing the foreign body. Utility Model Content

[0004] The utility model aims to provide a locking assembly for ENT grasping forceps to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locking assembly for ENT grasping forceps, which is located at one end of one of the clamp arms of the grasping forceps to lock the opening and closing of the grasping forceps, including: a locking head, which is fixedly connected to the top of the clamp arm of the grasping forceps; a round bar, which is entirely passed through the interior of the locking head, and the two ends of the round bar are respectively connected to the top of the other clamp arm and the grasping mouth; a locking hole, which is opened and passes through the interior of the round bar; a top column, which is fixedly connected to the top of the locking head; a locking chamber, which is opened in the interior of the top column, and the bottom of the locking chamber is communicated with the interior of the locking head through a round opening; a locking column, which is inserted into the interior of the locking chamber; a retaining ring, which is welded to the outer wall of the locking column; and a spring, whose two ends are respectively against the top of the locking chamber and the upper surface of the retaining ring.

[0006] By adopting the above technical solution, when the structure is gripped by using the grabbing pliers, the top of one of the pliers arms of the grabbing pliers will push the round bar to move in the locking head so that the grabbing head closes and grabs, and when the lock hole moves to the bottom of the lock chamber, the compressed spring will push the lock column to move downward and insert into the lock hole, so that the round bar cannot move forward and backward. At this time, the grabbing head grabs the foreign object and closes and locks it tightly, thereby ensuring that the foreign object can be smoothly removed by pulling the grabbing pliers, reducing the probability of the pliers arm accidentally loosening and falling off, reducing the risk and complexity of removing foreign objects, and improving the accuracy and efficiency of removing foreign objects.

[0007] Preferably, the locking assembly for the ENT grasping forceps also includes: a movable groove, which is opened through the top of the top column; a horizontal clamping bar, which is slidably connected in the movable groove, and a clamping head is fixedly connected to one side of the horizontal clamping bar; a limiting hole, which is opened on the outer wall of the locking column, and the position of the limiting hole corresponds to the clamping head.

[0008] By adopting the above technical solution, by pushing the two ends of the horizontal clamping bar differently, the clamping head of the horizontal clamping bar can be inserted into the limiting hole, so that the position of the locking column is fixed and cannot be moved, and the locking function is lost. This makes it convenient for the doctor to control the movement of the round bar at will before removing the foreign body, so that the grasping head can grasp the foreign body at will to adjust the position. After the clamping head is pushed out, the locking function can be restored, which makes it convenient to grasp the foreign body, lock it, and pull it out after the position of the foreign body is adjusted.

[0009] Preferably, the length of the transverse clamping strip is greater than the width of the top column, and both ends of the transverse clamping strip extend to the outside of the movable groove.

[0010] By adopting the above technical solution and designing the length of the horizontal clamping strip to be greater than the width of the top column, the movement of the clamping head can be controlled by pushing the extended part of the horizontal clamping strip, thereby realizing the function of quickly closing and opening the locking function, so that the grabbing forceps can perform multiple functions when grabbing foreign objects, thereby improving the diversity of the grabbing forceps functions.

[0011] Preferably, the width of the limiting hole is slightly larger than the width of the clamping head on one side of the horizontal clamping strip.

[0012] By adopting the above technical solution and designing the width of the limiting hole and the clamping head, when the horizontal clamping strip is pushed to move horizontally, it is convenient for the clamping head to be inserted into the limiting hole to fix the movement of the locking column.

[0013] Preferably, the spring is placed between the lock chamber and the retaining ring in a compressed state.

[0014] By adopting the above technical solution and setting the length of the spring, the springs of different lengths in the lock chamber are evenly compressed, thereby providing a larger thrust for the retaining ring, pushing the lock column into the lock hole for locking, improving the responsiveness of the lock column locking, and avoiding the problem of not being able to quickly push the lock due to small thrust.

[0015] Preferably, the lock hole is located on a round bar at a distance from one end of the rear of the top column, and the bottom of the lock column is a curved surface with the same curvature as the surface of the round bar.

[0016] By adopting the above technical solution, by locating the locking hole on the round bar at the rear, when the grasping pliers are tightly gripped, the round bar will be pushed to move in the locking head, so that the locking hole can be smoothly moved to the bottom of the locking column for locking. At the same time, the bottom of the locking column is a curved surface that can fit with the outer wall of the round bar. When the locking hole moves to the locking column, it can be quickly and accurately inserted into the locking hole for locking.

[0017] Preferably, the length of the lock column beyond the upper surface of the top column is greater than the length of the lock column below the retaining ring, and a pull head is provided on the top of the lock column.

[0018] By adopting the above technical solution and designing the lengths of the lock column at different positions, it is possible to ensure a firm lock while also being able to release the lock by pulling the pull head to open the grab head and remove foreign objects.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] (1) When the grasping forceps are used to hold the object tightly, the top of one of the arms of the grasping forceps will push the round bar to move in the locking head so that the grasping head closes and grasps. At this time, the lock hole will move to the bottom of the lock chamber, and the compressed spring will push the retaining ring to move the lock column downward and insert it into the lock hole, so that the round bar cannot move forward and backward. At this time, the grasping head grasps the foreign object and closes and locks it tightly, thereby ensuring that the grasping forceps can be pulled to remove the foreign object smoothly, reducing the probability of the forceps arm accidentally loosening and falling off, reducing the risk and complexity of removing the foreign object, and improving the accuracy and efficiency of removing the foreign object;

[0021] (2) By pushing the two ends of the horizontal clamp bar differently, the clamp head of the horizontal clamp bar can be inserted into the limit hole, so that the position of the lock column is fixed and cannot be moved, and the lock function is lost. This makes it easier for the doctor to control the movement of the round bar before removing the foreign body, so that the grasping head can grasp the foreign body and adjust the position at will. After the clamp head is pushed out, the locking function can be restored, which makes it easier for the foreign body to be grasped, locked, fixed and pulled out after the position of the foreign body is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the device of the utility model;

[0023] Figure 2 It is a cross-sectional view of the locking head structure of the utility model;

[0024] Figure 3 This is a cross-sectional view of the internal structure of the locking head of the utility model;

[0025] Figure 4 It is a schematic diagram of the structure of the horizontal clamping strip of the utility model.

[0026] In the figure: 1. Grasping pliers; 2. Locking head; 3. Round bar; 4. Locking hole; 5. Top column; 6. Locking chamber; 7. Locking column; 8. Retaining ring; 9. Spring; 10. Movable groove; 11. Horizontal clamping bar; 12. Limiting hole. DETAILED DESCRIPTION

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

[0028] The following is combined with Figure 1-4 The utility model is described in further detail.

[0029] Example 1

[0030] See also Figures 1 to 3 The utility model provides an embodiment: a locking assembly for ENT grasping forceps, which is located at one end of one of the clamp arms of the grasping forceps 1 to lock the opening and closing of the grasping forceps 1, including: a locking head 2, which is fixedly connected to the top of the clamp arm of the grasping forceps 1, one end of the locking head 2 is connected to the bottom of one of the clamp arms, the other end of the locking head 2 is connected to one end of the catheter, and the interior of the locking head 2 is connected to the interior of the catheter; a round bar 3, which is integrally passed through the interior of the locking head 2, and the two ends of the round bar 3 are respectively connected to the top of the other clamp arm and the grasping mouth, and the round bar 3 is passed through the locking head 2 to control the closing of the grasping head through the catheter; a locking hole 4, which is opened and runs through the interior of the round bar 3; a top column 5, which is fixedly connected to the top of the locking head 2 and is used to install various structures of the locking assembly inside; a locking chamber 6, which is opened at the top The interior of the column 5, and the bottom of the lock chamber 6 is connected with the interior of the locking head 2 through a circular opening. This structural design can form a channel in a vertical direction with the lock hole 4, which is convenient for inserting and limiting the lock hole 4; the lock column 7, which is inserted into the interior of the lock chamber 6, and the lock column 7 is inserted into the interior of the lock chamber 6, and can be moved up and down to insert into the lock hole 4 to limit the position of the round bar 3; the retaining ring 8, the retaining ring 8 is welded on the outer wall of the lock column 7; the spring 9, the two ends of the spring 9 are respectively against the top of the lock chamber 6 and the upper surface of the retaining ring 8, and the thrust generated by the spring 9 will act on the retaining ring 8, and the retaining ring 8 is forced to drive the lock column 7 to move downward and insert into the lock hole 4 to lock. This component can make the grasping head grasp foreign matter and close and lock it tightly, thereby ensuring that the grasping pliers 1 can be pulled to smoothly remove foreign matter, reduce the probability of accidental loosening and falling off of the pliers arm, reduce the risk and complexity of removing foreign matter, and improve the accuracy and efficiency of removing foreign matter.

[0031] Example 2

[0032] See also Figures 2 to 4On the basis of the above embodiment, the above-mentioned locking assembly for ENT grasping forceps also includes: an active groove 10, which is opened through the top of the top column 5; a horizontal clamping strip 11, which is slidably connected to the active groove 10, and a clamping head is fixedly connected to one side of the horizontal clamping strip 11; a limiting hole 12, which is opened on the outer wall of the lock column 7, and the position of the limiting hole 12 corresponds to the clamping head. Different pushes at the two ends of the horizontal clamping strip 11 can make the clamping head of the horizontal clamping strip 11 inserted into the limiting hole 12, so that the position of the lock column 7 is fixed and cannot be moved, so that it loses its locking function, which is convenient for the doctor to arbitrarily control the activity of the round bar 3 before removing the foreign body, so that the grasping head can arbitrarily grasp the foreign body for position adjustment. The locking function can be restored after the clamping head is pushed out, so that the foreign object can be grabbed, locked and fixed and pulled out after the position of the foreign object is adjusted. The length of the horizontal clamping strip 11 is greater than the width of the top column 5, and the two ends of the horizontal clamping strip 11 extend to the outside of the movable groove 10. The length of the horizontal clamping strip 11 is designed to be greater than the width of the top column 5. The movement of the clamping head can be controlled by pushing the extended part of the horizontal clamping strip 11, thereby realizing the function of quickly closing and opening the locking function, realizing the multiple functions of the grasping forceps 1 when grasping foreign objects, and improving the diversity of the functions of the grasping forceps 1. The width of the limiting hole 12 is slightly greater than the width of the clamping head on one side of the horizontal clamping strip 11. When the horizontal clamping strip 11 is pushed to move horizontally, it is convenient for the clamping head to be inserted into the limiting hole 12 to fix the movement of the lock column 7.

[0033] Example 3

[0034] See also Figure 2 and Figure 3 On the basis of the above embodiment, the spring 9 is placed between the lock chamber 6 and the retaining ring 8 in a compressed state. The length of the spring 9 is set so that the spring 9 of different lengths in the lock chamber 6 is uniformly in a compressed state, thereby providing a larger thrust for the retaining ring 8 to push the lock column 7 into the lock hole 4 for locking, thereby improving the responsiveness of the lock column 7 and avoiding the problem of being unable to quickly push the lock due to a small thrust. The lock hole 4 is located on the round bar 3 at one end of the rear of the top column 5. When the grasping pliers 1 are tightly grasped, the round bar 3 will be pushed to move in the lock head 2, so that the lock hole 4 can be moved smoothly. The lock post 7 is moved to the bottom of the lock column 7 for locking, and the bottom of the lock column 7 is a curved surface with the same curvature as the surface of the round bar 3. The bottom of the lock column 7 is a curved surface that can fit with the outer wall of the round bar 3. When the lock hole 4 moves to the lock column 7, it can be quickly and accurately inserted into the lock hole 4 for locking. The length of the lock column 7 exceeding the upper surface of the top column 5 is greater than the length of the lock column 7 under the retaining ring 8, and a pull head is provided on the top of the lock column 7. Through the design of the different position lengths of the lock column 7, it can ensure that it is firmly locked, and the pull head can be used to pull the lock to open the grabbing head to remove foreign objects.

[0035] Working principle: When in use, first push the clamp head of the horizontal clamp bar 11 into the limiting hole 12 to lock the limiting lock column 7, and use the grasping forceps 1 to allow the grasping head to grab foreign objects in the patient's body at will to adjust the best grasping and pulling posture. After adjustment, the other hand gently pushes the horizontal clamp bar 11 to restore the locking column 7 to lock, and controls the grasping forceps 1 to make the grasping head firmly grasp the foreign object. While grasping, the round bar 3 will move forward to move the lock hole 4 to the bottom of the lock chamber 6. The lock column 7 loses the support of the round bar 3, and the spring 9 provides thrust to make the retaining ring 8 insert the lock column 7 into the lock hole 4 for locking. At this time, the grasping forceps 1 cannot move, and the grasping head will not be affected by the movement of the grasping forceps 1 during the process of pulling out the foreign object.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A locking assembly for an ENT grasping forceps, the locking assembly being located at one end of one of the arms of the grasping forceps to lock the grasping forceps open and closed, characterized in that: include: A locking head, which is fixedly connected to the top of the gripping forceps arm; A round bar, which is entirely inserted into the interior of the locking head, and the two ends of the round bar are respectively connected to the top of the other clamp arm and the grabbing mouth; A keyhole, which is provided through the interior of the round bar; A top post, which is fixedly connected to the top of the locking head; A lock chamber is provided inside the top column, and the bottom of the lock chamber communicates with the interior of the locking head through a circular opening; A lock cylinder, which is inserted into the interior of the lock chamber; A retaining ring welded to the outer wall of the locking column; A spring, two ends of which are respectively against the top of the lock chamber and the upper surface of the retaining ring.

2. The locking assembly for ENT grasping forceps according to claim 1, characterized in that: Also includes: A movable groove is provided through the top of the top column; A horizontal clamping bar, which is slidably connected in the movable groove, and a clamping head is fixedly connected to one side of the horizontal clamping bar; The limiting hole is formed on the outer wall of the lock column, and the position of the limiting hole corresponds to the clamping head.

3. The locking assembly for ENT grasping forceps according to claim 2, characterized in that: The length of the horizontal clamping strip is greater than the width of the top column, and both ends of the horizontal clamping strip extend to the outside of the movable groove.

4. The locking assembly for ENT grasping forceps according to claim 2, characterized in that: The width of the limiting hole is slightly larger than the width of the clamping head on one side of the horizontal clamping strip.

5. The locking assembly for ENT grasping forceps according to claim 1, characterized in that: The spring is placed between the lock chamber and the retaining ring and is in a compressed state.

6. The locking assembly for ENT grasping forceps according to claim 1, characterized in that: The lock hole is located on a round bar at a distance from one end of the rear of the top column, and the bottom of the lock column is a curved surface with the same arc as the surface of the round bar.

7. The locking assembly for ENT grasping forceps according to claim 1, characterized in that: The length of the lock column beyond the upper surface of the top column is greater than the length of the lock column below the retaining ring, and a pull head is arranged on the top of the lock column.

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