A disposable continuous - firing titanium clip applicator and its counting mechanism

Abstract

The present invention discloses a disposable continuous - firing titanium clip forceps and its counting mechanism. The counting mechanism is arranged inside the titanium clip forceps and includes a counting frame, a transmission assembly, a counting tape arranged inside the counting frame, a reset assembly, a pushing block and a rotating block which are arranged in the counting frame in sequence along the advancing direction of the counting tape. The pushing block is slidably installed in the counting frame and drives the counting tape to move forward. The rotating block is rotatably installed in the counting frame. The reset assembly provides a backward reset force for the pushing block. The transmission assembly provides a forward moving force for the pushing block. A plurality of equally - spaced continuous digital identifiers are arranged on the surface of the counting tape. A window through which the digital identifiers on the counting tape can be seen is arranged on the surface of the titanium clip forceps. The disposable continuous - firing titanium clip forceps of the present invention is internally provided with a counting mechanism, which facilitates the operator to clearly know the number of titanium nails, thereby ensuring the safety of the operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a disposable continuous - firing titanium clip forceps and its counting mechanism. Background Art

[0002] Generally, during a medical operation, in order to avoid the difficulty of the operation increasing due to excessive blood loss or blood vessel rupture of the target organ, the blood vessels connecting the target organ are first ligated and hemostatic with titanium nails, and the instrument used is a titanium clip forceps. The operation mode of the titanium clip forceps is to first insert the titanium clip forceps into the human body, then circle the titanium nails around the blood vessel, and externally apply force to drive the titanium clip forceps to clamp the titanium nails to achieve the hemostatic effect.

[0003] In order to enable the operator to better control the surgical process, they need to know the number of titanium nails already used and the number of remaining titanium nails inside the titanium clip forceps during the operation. The conventional design is to make the nail magazine cover transparent and make the pusher plate in contact with the last titanium nail yellow. By observing the position of the pusher plate through the cover, the usage situation of the titanium nails in the instrument can be roughly known. The existing problems are as follows: 1. The working section of the instrument is composed of two semi - circular covers, and the overall strength is relatively low. When subjected to external force collision and extrusion, the cover will deform, which will affect the smoothness of the instrument's nail ejection, and in severe cases, it will even cause the instrument to fail; 2. During the operation, due to different operating angles and the influence of the internal environment on the line of sight, the current design for identifying the titanium nails inside the instrument cannot quickly and accurately feedback the information required by the operator, which will cause a certain interference to the surgical process. Therefore, there is an urgent need to design a disposable continuous - firing titanium clip forceps to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a disposable continuous - firing titanium clip forceps and its counting mechanism. The counting mechanism is built into the handle of the titanium clip forceps. Through the window on the surface of the titanium clip forceps, the operator can clearly know the number of titanium nails, thus ensuring the safety of the operation.

[0005] The technical solution for achieving the purpose of the present invention is:

[0006] A counting mechanism for a disposable continuous - firing titanium clip forceps. The counting mechanism is arranged inside the titanium clip forceps and includes a counting frame, a transmission component, a counting belt arranged in the counting frame, a reset component, a pushing block and a rotating block arranged in the counting frame in sequence along the advancing direction of the counting belt; the pushing block is slidably installed in the counting frame and drives the counting belt to move forward; the rotating block is rotatably installed in the counting frame; the reset component provides a backward reset force for the pushing block; the transmission component provides a forward moving force for the pushing block; a plurality of equally - spaced continuous digital marks are arranged on the surface of the counting belt; and a window is arranged on the surface of the titanium clip forceps through which the digital marks on the counting belt can be seen.

[0007] Further, the transmission assembly is connected to the movable handle of the titanium clip pliers. While the titanium clip pliers fire titanium nails, the transmission assembly drives the push block to drive the counting tape to move.

[0008] Further, the window size is the size of a digital identifier, so that the digital identifier exactly fills the window and the digital identifier will not be disordered.

[0009] Further, an installation assembly is included on the counting frame, and the counting tape is sleeved on the installation assembly.

[0010] Further, the installation assembly includes a connecting shaft and a connecting shaft sleeve, and the connecting shaft sleeve is sleeved on the connecting shaft.

[0011] Further, a limiting stop block for restricting the flipping angle of the rotating block is provided in the counting frame.

[0012] Further, a square groove is provided in the counting frame, and the push block is slidably installed in the square groove.

[0013] Further, two rows of equally spaced slots are provided on the surface of the counting tape. The slots are arranged along the circumferential direction of the counting tape, and the digital identifier is arranged between the two rows of slots.

[0014] Further, the transmission assembly includes a transmission seat provided below the counting frame and a push piece fixedly connected to the transmission seat; the upper end surface of the push piece is higher than the lower end surface of the push block.

[0015] Further, an installation boss and an installation seat are provided on the surface of the transmission seat. The push piece is connected to the transmission seat through the installation seat, and the installation boss is connected to the movable handle of the titanium clip pliers.

[0016] Further, a first hook is provided at the upper end of the rotating block; a second hook is provided at the upper end of the push block; both the first hook and the second hook are buckled in the slots of the counting tape.

[0017] Further, the upper end of the front end surface of the second hook inclines backward, the lower end of the front end surface of the second hook inclines forward, and the upper end of the rear end surface of the second hook inclines forward.

[0018] Further, the reset assembly includes a fixed block and a reset spring; the fixed block is fixedly installed in the counting frame; both ends of the reset spring are fixedly installed on the push block and the fixed block respectively.

[0019] Further, the reset assembly further includes a guide shaft, and one end of the guide shaft passes through the push block and is fixedly installed on the fixed block.

[0020] Further, in the initial state, a safety gap is provided between the push block and the push piece.

[0021] Furthermore, the distance between adjacent slots in the same column is H, and the maximum moving distance of the pushing block is D, and the distance requirement satisfies H ≤ D < 2H.

[0022] A disposable continuous-firing titanium clip applicator includes a clamp head, a clamp rod, a dial, and a handle. One end of the clamp rod is connected to the clamp head, and the other end is connected to the handle through the dial. It includes a counting mechanism for the disposable continuous-firing titanium clip applicator, and this counting mechanism is arranged inside the handle; a metal sleeve is sleeved outside the clamp rod, one end of this metal sleeve is arranged at the clamp head, and the other end is arranged at the dial.

[0023] Adopting the above technical solution, the present invention has the following beneficial effects:

[0024] (1) Each time the titanium clip applicator fires a titanium nail, the driving component drives the pushing block to move forward, and then drives the counting belt to move forward. Each time a titanium nail is fired, the counting belt moves one grid. The transmission is stable, and a digital identifier will be displayed on the window of the titanium clip applicator. In this way, the user can directly see this digital identifier, so as to clearly know the used quantity and remaining quantity of the titanium nails, thereby improving the safety of the operation.

[0025] (2) The counting belt, the reset component, the pushing block, and the rotating block of the present invention are all arranged inside the counting frame, which is convenient for assembling into an integral component first during production and then installing it inside the handle of the titanium clip applicator, simplifying the production process.

[0026] (3) The counting belt of the present invention is provided with slots. When firing a titanium nail, the movable handle drives the transmission seat to move forward, drives the pushing piece to move forward, and then the pushing block drives the counting belt to move forward. The counting belt drives the rotating block to flip forward by a certain angle, so that the rotating block disengages from the slot of the counting belt. When encountering the next slot, the pressure of the counting belt on the rotating block disappears, and the rotating block naturally inserts into this slot. At this time, the counting belt stops moving forward. In the whole process, the counting belt moves forward one grid, and the digital identifier on it changes; after the firing is completed, under the action of the reset spring, the pushing block resets, and then prepares for the next firing action; the counting mechanism of the present invention is ingeniously designed to ensure the stability of the transmission process.

[0027] (4) The upper end of the front end face of the second hook of the present invention inclines backward, the lower end of the front end face of the second hook inclines forward, and the upper end of the rear end face of the second hook inclines forward, ensuring that the second hook can naturally avoid the counting belt when the pushing block retreats and will firmly hold the counting belt when moving forward.

[0028] (5) The reset component of the present invention is also provided with a guiding shaft, which plays a guiding and auxiliary role in the movement of the pushing block and also ensures the reliability of the counting mechanism.

[0029] (6) A safety gap is provided between the pushing piece and the pushing block of the present invention, ensuring that there is no limit interference during the installation and forward movement of the transmission seat.

[0030] (7) The distance between adjacent slots in the same column of the present invention is H, and the maximum moving distance of the pushing block is D, and the distance requirement satisfies H ≤ D < 2H, which effectively ensures that each time the device is fired, the counting tape rotates one grid and the digital identifier on it changes once.

[0031] (8) The present invention fixes the counting tape through a connecting shaft, and the connecting shaft sleeve can ensure good rotation of the counting tape.

[0032] (9) The window size of the present invention is the size of a digital identifier, so that the digital identifier exactly fills the window and the digital identifier will not be disordered.

[0033] (10) The overall strength of the metal sleeve of the present invention is high and will not be deformed when subjected to external force collision and extrusion, thereby ensuring the smoothness of the nail ejection of the instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to make the content of the present invention easier to be clearly understood, the following further describes the present invention in detail according to specific embodiments in conjunction with the drawings, where

[0035] Figure 1 is a schematic structural diagram of the present invention;

[0036] Figure 2 is a schematic assembly diagram of the counting mechanism and the titanium clip forceps of the present invention;

[0037] Figure 3 is an exploded view of the structure of the counting mechanism of the present invention;

[0038] Figure 4 is a schematic assembly diagram of each component of the counting mechanism of the present invention;

[0039] Figure 5 is a schematic structural diagram of the driving component of the counting mechanism of the present invention;

[0040] The identifiers in the drawings are:

[0041] Counting mechanism 1, counting tape 11, slot 111, counting frame 12, connecting shaft 121, connecting shaft sleeve 122, square groove 123, reset component 13, fixed block 131, supporting part 1311, reset spring 132, guiding shaft 133, transmission component 14, transmission seat 141, mounting boss 1411, mounting seat 1412, pushing piece 142, rotating block 15, first hook 151, limiting block 152, pushing block 16, second hook 161.

[0042] Titanium clip forceps 2, clamp head 21, clamp rod 22, dial 23 and handle 24, metal sleeve 25, window 26. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] (Embodiment 1)

[0044] See Figures 1 to 5 Figures 1 to 5 , the disposable continuous - firing titanium clip forceps of this embodiment includes a counting mechanism 1 and a titanium clip forceps 2. The titanium clip forceps 2 includes a jaw head 21, a forceps rod 22, a dial 23 and a handle 24. In this embodiment, the counting mechanism 1 is installed in the cover plate of the handle 24, and corresponding positioning grooves are preset in the cover plate. One end of the forceps rod 22 is connected to the jaw head 21, and the other end is connected to the handle 24 through the dial 23. It should be noted that the forceps rod 22 is fixedly connected to the jaw head 21 and the dial 23, and is movably connected to the handle 24. The dial 23 is installed on the handle 24 and can rotate freely. By rotating the dial 23, the forceps rod 22 can be driven to rotate, so as to adjust the direction of the jaw head 21; a metal sleeve 25 is sleeved outside the forceps rod 22. One end of the metal sleeve 25 is arranged at the jaw head 21, and the other end is arranged at the dial 23. Since the overall strength of the metal sleeve 25 is high, it will not be deformed when subjected to external force collision and extrusion, so as to ensure the smoothness of the nail ejection of the instrument.

[0045]

[0045] The counting mechanism 1 includes a counting tape 11, a counting frame 12, a reset assembly 13, a transmission assembly 14, a rotating block 15 and a pushing block 16. The counting frame 12 packages an installation assembly, and the installation assembly includes a connecting shaft 121 and a connecting shaft sleeve 122; the transmission assembly 14 includes a transmission seat 141 and a pushing piece 142, and the reset assembly 13 includes a fixed block 131, a reset spring 132 and a guiding shaft 133. It should be noted that the counting frame 12, the pushing block 16 and the fixed block 131 are all made of ABS material, with high strength and good toughness. The counting tape 11, the reset assembly 13, the rotating block 15 and the pushing block 16 are all arranged in the counting frame 12, which is convenient for assembling into a whole part during production and then installing it at the corresponding position in the titanium clip forceps handle 24, simplifying the production process.

[0046] The counting strip 11 is made of TPU material, which has good elasticity, oil resistance, water resistance and mildew resistance. This material has high mechanical strength, outstanding load-bearing capacity, impact resistance and shock absorption performance, and the service temperature range is -40~120°C. Multiple continuous digital markings "20, 19,..., 00" are provided at equal intervals on the surface of the counting strip 11. A window 26 through which the digital markings on the counting strip 11 can be seen is provided on the upper surface of the handle 24. The size of the window 26 is preferably 10mm×5mm. A convex lens is also provided on the window 26 to prevent dust from entering the handle through the window. The digital markings exactly fill the window 26, and the digital markings will not be disordered, which is convenient for the user to observe at a glance. A total of 20 titanium nails are installed in the titanium clip pliers 2. At the initial position, the value displayed through the window 26 is "20". After using one, the value in the window 26 will become "19", indicating that there are 19 titanium nails left. And so on. When the value in the window 26 becomes "00", it indicates that there are no titanium nails left. Two columns of slots 111 are provided at equal intervals on the surface of the counting strip 11. The two columns of slots 111 are arranged along the circumferential direction of the counting strip 11. The digital markings are arranged in the middle of the two columns of slots 111. The distance between adjacent slots 111 in the same column is H, and the maximum moving distance of the pushing block 142 is D. The two distances satisfy the requirement H≤D<2H, effectively ensuring that each time it is fired, the counting strip 11 can only rotate one grid, and the digital markings on it change once.

[0047] The transmission seat 141 and the pushing piece 142 are arranged below the counting frame 12. An installation boss 1411 and an installation seat 1412 are provided on the surface of the transmission seat 141. The pushing piece 142 is connected to the transmission seat 141 through the installation seat 1412. The installation boss 1411 is connected to the movable part of the titanium clip pliers handle 24.

[0048] A square groove 123 is provided on the counting frame 12. The pushing block 16 is slidably installed in the square groove 123, and the lower end surface of the pushing block 16 is lower than the upper end surface of the pushing piece 142. In the initial state, a safety gap is provided between the pushing block 16 and the pushing piece 142, ensuring that there is no limit interference when the transmission seat 141 is installed and advanced. The rotating block 15 is arranged on the left side of the pushing block 16 and is rotatably installed in the counting frame 12. Two first hooks 151 are provided at the upper end of the rotating block 15. Two second hooks 161 are provided at the upper end of the pushing block 16. The fixed block 131 is arranged on the right side of the pushing block 16 and is fixedly installed in the counting frame 12. There are two connecting shafts 121 and two connecting shaft sleeves 122. The connecting shaft sleeve 122 is sleeved on the connecting shaft 121, and is respectively arranged on the left side of the rotating block 15 and the right side of the fixed block 131 and is fixedly installed in the counting frame 12. The counting tape 11 is sleeved on the two connecting shaft sleeves 122, which can ensure good rotation of the counting tape 11. The first hook 151 and the second hook 161 are respectively inserted into the slots 111 of the counting tape 11. Among them, the connecting shaft 121 on the left side of the rotating block 15 is higher than the connecting shaft 121 on the right side of the fixed block 131, ensuring that the counting tape 11 advances obliquely upward in the horizontal direction. The upper end surface of the fixed block 131 is provided with a supporting portion 1311 for supporting the counting tape 11, ensuring that the counting tape 11 has a certain tension and is in a slightly taut state. The upper end of the front end surface of the second hook 161 is inclined backward, the lower end of the front end surface is inclined forward, and the upper end of the rear end surface is inclined forward, ensuring that the second hook can naturally avoid the counting tape when the pushing block retreats and will firmly latch onto the counting tape when advancing.

[0049] A limit stop block 152 for restricting the flipping angle of the rotating block 15 is provided on the counting frame 12 and at the lower left corner of the rotating block 15. The maximum flipping angle of the rotating block in this embodiment is preferably 36 degrees. Protrusions are respectively provided on the pushing block 16 and the fixed block 131. The two ends of the return spring 132 are connected to the pushing block 16 and the fixed block 131 through the protrusions. The guiding shaft 133 is made of 06Cr19Ni10 material, and its right end passes through the pushing block 16 and is fixedly installed on the fixed block 131. When installing the guiding shaft 133, appropriate glue can be applied at the left end of the fixed block 131 to increase the installation firmness. The guiding shaft 133 plays a guiding and auxiliary role in the movement of the pushing block 16, and also ensures the reliability of the counting mechanism 1.

[0050] Working principle of this embodiment: When the titanium clip pliers fire a titanium nail, the movable part on the handle 24 is pulled, causing the transmission seat 141 to displace leftward. The pushing piece 142 on the transmission seat 141 drives the counting belt 11 to move leftward through the pushing block 16. The return spring 132 deforms under the action of the pulling force. The counting belt 11 drives the rotating block 15 to flip leftward. The first hook 151 on the rotating block 15 disengages from the slot 111 of the counting belt 11. The pushing block 16 continues to drive the counting belt 11 to move leftward. When the counting belt 11 moves to the limit position, the counting belt 11 loses the pressure on the first hook 151, and the first hook 151 naturally inserts into the next slot 111. Release the movable part of the handle 24, and the return spring 132 drives the pushing block 16 to move rightward. The counting belt 11 will move rightward simultaneously under the action of the pushing block 16 until the first hook 151 firmly latches onto the counting belt 11 and the counting belt 11 stops moving. The pushing block 16 continues to move rightward under the action of the return spring 132, and the second hook 161 disengages from the slot 111 until the pushing block 16 returns to its original position, and the second hook 161 inserts into the next slot 111 again, preparing for the next firing.

[0051] In this embodiment, each time the titanium clip pliers 2 fires a titanium nail, the transmission assembly 14 drives the counting belt 11 to rotate. Each time a titanium nail is fired, the counting belt 11 moves one grid, and a digital identifier will be displayed on the window 26 of the titanium clip pliers 2. In this way, the user can intuitively see this digital identifier, so as to clearly know the used quantity and remaining quantity of the titanium nails, thereby improving the safety of the operation. The counting mechanism 1 of this embodiment is ingeniously designed and at the same time ensures the stability of the transmission process.

[0052] (Embodiment 2)

[0053] The structure of this embodiment is basically the same as that of Embodiment 1, except that a plurality of equally spaced digital identifiers "00, 20, 19,..., 00" are provided on the surface of the counting belt 11. The factory identification number "00" is added. There are a total of 21 titanium nails installed in the titanium clip pliers 2. At the initial position, the value displayed through the window 26 is "00", indicating that the titanium clip pliers are assembled and qualified. After firing one titanium nail, the value displayed through the window 26 is "20". After the user uses one, the value in the window 26 will become "19", indicating that there are 19 titanium nails left. And so on. When the value in the window 26 becomes "00" again, it indicates that there are no titanium nails left.

[0054] The factory identification number "00" is added to the counting belt 11 of this embodiment, which is convenient for the manufacturer's production and inspection.

[0055] The specific embodiments described above further elaborate on the object, technical solution, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A counting mechanism for a disposable continuous titanium clip applicator, the counting mechanism being disposed inside the titanium clip applicator, characterized in that: it includes a counting frame, a transmission component, a counting belt disposed inside the counting frame, a reset component, a pushing block and a rotating block sequentially disposed inside the counting frame along the advancing direction of the counting belt; the pushing block is slidably installed inside the counting frame and drives the counting belt to move forward; the rotating block is rotatably installed inside the counting frame, and a limiting stop block for restricting the flipping angle of the rotating block is provided inside the counting frame; the reset component provides a force for the pushing block to reset backward; the transmission component provides a force for the pushing block to move forward; a plurality of equally spaced continuous digital markings are provided on the surface of the counting belt; a window through which the digital markings on the counting belt can be seen is provided on the surface of the titanium clip applicator; two columns of equally spaced slots are provided on the surface of the counting belt, and the slots are arranged along the circumferential direction of the counting belt; a first hook is provided at the upper end of the rotating block; a second hook is provided at the upper end of the pushing block; both the first hook and the second hook are buckled in the slots of the counting belt; the upper end of the front end face of the second hook is inclined backward, the lower end of the front end face of the second hook is inclined forward, and the upper end of the rear end face of the second hook is inclined forward; by driving the counting belt to move forward by the pushing block, the counting belt drives the rotating block to flip forward by a certain angle so that the rotating block disengages from the slot of the counting belt, and when encountering the next slot, the pressure action of the counting belt on the rotating block disappears, and the rotating block naturally inserts into the slot.

2. A counting mechanism for a disposable continuous titanium clip applicator according to claim 1, characterized in that: the digital markings are provided between the two columns of slots.

3. A counting mechanism for a disposable continuous titanium clip applicator according to claim 2, characterized in that: the transmission component includes a transmission seat disposed below the counting frame and a pushing piece fixedly connected to the transmission seat; the upper end face of the pushing piece is higher than the lower end face of the pushing block.

4. A counting mechanism for a disposable continuous titanium clip applicator according to claim 1, characterized in that: the reset component includes a fixed block and a reset spring; the fixed block is fixedly installed inside the counting frame; both ends of the reset spring are fixedly installed on the pushing block and the fixed block respectively.

5. A counting mechanism for a disposable continuous titanium clip applicator according to claim 4, characterized in that: the reset component further includes a guiding shaft, and one end of the guiding shaft passes through the pushing block and is fixedly installed on the fixed block.

6. A counting mechanism for a disposable continuous titanium clip applicator according to claim 3, characterized in that: in the initial state, a safety gap is provided between the pushing block and the pushing piece.

7. A counting mechanism for a disposable continuous titanium clip applicator according to claim 1, characterized in that: the distance between adjacent slots in the same column is H, the maximum moving distance of the pushing block is D, and the distance requirement satisfies H≤D<2H.

8. A disposable continuous titanium clip applicator, including a jaw head, a jaw rod, a dial and a handle, one end of the jaw rod is connected to the jaw head, and the other end is connected to the handle through the dial, characterized in that: It further includes a counting mechanism of a disposable continuous titanium clip applicator according to any one of claims 1-7, and the counting mechanism is arranged inside the handle; a metal sleeve is sleeved outside the forceps rod, one end of the metal sleeve is arranged at the forceps head, and the other end is arranged at the dial wheel.

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