Medical use integrated type hand forceps

Abstract

This utility model belongs to the field of medical device technology, specifically disclosing a manual clamping pliers for medical use, including a housing and a clamping assembly. The clamping assembly includes a pressing shaft, a cover-opening shaft, and clamping pieces. The pressing shaft is disposed inside the housing, and the cover-opening shaft is installed inside the pressing shaft along its central axis. The cover-opening shaft can be operated to be pushed out or retracted from the end of the pressing shaft. Multiple clamping pieces are provided, which are arranged circumferentially along the pressing shaft and surround the end of the pressing shaft. The pressing shaft can be driven to be pushed out or retracted, and the multiple clamping pieces can be closed synchronously with the pushing out of the pressing shaft; or the multiple clamping pieces can be opened synchronously with the retraction of the pressing shaft. This utility model effectively solves the problems of existing tools having single functions and poor adaptability, and has the advantages of high integration, convenient operation, and strong adaptability.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular relates to a manual pliers for medical use that integrates opening and closing mechanisms. Background Technology

[0002] In pharmaceutical factories, research institutes, laboratories, hospital pharmacies, and other places, glass medicine bottles are usually used for small-batch packaging of various medicines. When sealing glass medicine bottles, aluminum-plastic caps and aluminum caps are used.

[0003] In existing technologies, manual capping and opening tools for pharmaceutical aluminum caps only have a single function, requiring frequent tool changes when handling aluminum caps of different sizes. Laboratory staff often need to carry both capping pliers and opening pliers when dispensing pharmaceuticals, resulting in low space utilization due to multiple tools occupying the work surface. Furthermore, when encountering non-standard aluminum caps, staff must interrupt the experimental process to find suitable tools, severely impacting work efficiency.

[0004] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0005] The purpose of this utility model is to provide a medical-grade integrated manual pliers to solve the problems of traditional tools having limited functionality and narrow applicability.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a manual clamp for pharmaceutical use with integrated opening and closing mechanism, comprising a housing and an opening and closing assembly, the opening and closing assembly comprising a pressing shaft, a cover-opening shaft core and clamping plates, the pressing shaft being disposed within the housing, the cover-opening shaft core being installed within the pressing shaft along the central axis of the pressing shaft, the cover-opening shaft core being operablely pushed out or retracted from the end of the pressing shaft;

[0007] The device has multiple clips arranged around the circumference of the pressing shaft and surrounding the end of the pressing shaft. The pressing shaft can be driven to extend or retract, and the multiple clips can close synchronously when the pressing shaft extends; or the multiple clips can open synchronously when the pressing shaft retracts.

[0008] Furthermore, it also includes an adjustment assembly, which includes an adjustment turntable installed inside the housing. An adjustment screw is mounted on the adjustment turntable along the axial direction. The cover opening shaft is connected to the adjustment screw by a threaded connection. The adjustment turntable is rotatably drivable to control the cover opening shaft to slide out or retract.

[0009] Furthermore, it also includes a pushing assembly, which includes a push rod and a pushing shaft. The pushing shaft is detachably mounted on the push rod and fits against the adjusting turntable. The pushing shaft, adjusting turntable, and pressing shaft are arranged sequentially from front to back along the axial direction. The push rod can be manipulated to slide axially. The push rod drives the adjusting turntable and pressing shaft to slide synchronously in the axial direction through the pushing shaft.

[0010] Furthermore, the adjustment assembly also includes a positioning pin and an adjustment push rod. The adjustment turntable is provided with a limiting cavity along the central axis. The push rod passes through the push shaft and extends to the limiting cavity. The positioning pin is installed on the push rod and is located in the limiting cavity. The adjustment turntable is provided with a first limiting channel and a second limiting channel that are radially through. The adjustment push rod includes a first push rod and a second push rod.

[0011] The positioning pin engages with the first limiting channel to lock the adjusting turntable in the circumferential direction. The first push rod is slidably mounted in the first limiting channel to push the positioning pin out of the first limiting channel to release the locking of the adjusting turntable.

[0012] Alternatively, a positioning pin engages with the second limiting channel to lock the adjusting turntable circumferentially, and a second push rod is slidably mounted in the second limiting channel to push the positioning pin out of the second limiting channel to release the locking of the adjusting turntable.

[0013] Furthermore, the adjustment assembly also includes an adjustment ring and an adjustment button. The housing includes a front housing. The adjustment assembly is installed on the front housing. The adjustment ring is sleeved on the adjustment turntable and located inside the front housing. The adjustment button is installed on the adjustment ring and extends radially to the outside of the front housing. The front housing is provided with an adjustment groove extending circumferentially at the position corresponding to the adjustment button. The adjustment button can be controlled to slide along the adjustment groove, and the adjustment ring rotates circumferentially accordingly.

[0014] The adjusting turntable has external teeth along its circumference, and the adjusting ring has corresponding internal teeth. The adjusting turntable and the adjusting ring are engaged in transmission, and the adjusting turntable rotates synchronously with the rotation of the adjusting ring.

[0015] Furthermore, there are two adjustment buttons, which are respectively positioned to correspond to the first and second limit channels. The adjustment buttons have a degree of freedom along the radial direction of the adjustment turntable, so as to drive the first push rod and the second push rod to slide respectively.

[0016] Furthermore, the pushing component also includes a first elastic element, a movable handle, and a second elastic element. The positioning pin is installed on the push rod through the first elastic element. The front shell is provided with a fixed handle, and the front shell extends forward along the axial direction to form a cantilever. The movable handle is hinged to the cantilever. One end of the push rod is hinged to the movable handle, and the other end extends to the limiting cavity of the adjusting turntable. The second elastic element is sleeved on the push rod. One end of the second elastic element is connected to the front shell or the fixed handle, and the other end abuts against the movable handle.

[0017] Furthermore, the housing also includes a rear housing, and the rolling start assembly also includes a third elastic element; the rear housing is coaxially mounted at the rear end of the front housing, the rolling start assembly is integrally disposed within the rear housing, the clamping pieces have a control end and a working end, the control end of the clamping pieces is provided with a limiting groove, the control ends of multiple clamping pieces are disposed within the rear housing, and the control end of any clamping piece is attached to the radial outer surface of the pressing shaft, the third elastic element connects multiple clamping pieces through the limiting groove and limits them to the radial outer surface of the pressing shaft.

[0018] Furthermore, the pressing shaft is a variable diameter shaft with a diameter decreasing from front to back. The control ends of multiple clamping pieces open or close synchronously with the change in the diameter of the pressing shaft. The working ends of multiple clamping pieces close as the control ends open, or open as the control ends close.

[0019] Furthermore, the end of the pressing shaft is integrally formed with a cap ring, and the cap ring is provided with multiple slots along the circumference. The opening shaft is provided with multiple bosses corresponding to each other, and the opening shaft is limited in the circumference by the bosses and slots engaging with each other.

[0020] The working principle of this technical solution is as follows: by controlling the opening shaft to push out or retract, the manual clamp can apply different intensities of pressure to the aluminum cap by pressing the shaft at the same pushing distance, and the size of the force application area will also change synchronously, realizing the switching between the two functions of opening and rolling the cap of the manual clamp.

[0021] During the capping process, the capping shaft retracts, the pressing shaft moves to press the aluminum cap, and the clamping plates move synchronously to close, surrounding the aluminum cap in the circumference and applying pressure to the aluminum cap. The edges of the aluminum cap are squeezed by the clamping plates and close inward, thus realizing the capping and sealing operation.

[0022] When opening the cap, the opening shaft is rotated out, pushing the pressing shaft to move. The clamps close simultaneously and clamp the bottle mouth or aluminum cap. At this time, the opening shaft directly presses against the aluminum cap and applies pressure to it. With the same displacement distance of the pressing shaft, the opening shaft presses deeper and has a smaller contact area with the aluminum cap. Therefore, the aluminum cap is subjected to greater pressure, and the aluminum cap is deformed and falls off from the bottle mouth, thus realizing the opening operation.

[0023] The beneficial effects of this technical solution are as follows:

[0024] Compared with the existing technology, the pharmaceutical-grade integrated manual pliers of this utility model can quickly switch between cap opening and cap rolling functions by manipulating the cap opening shaft to push out or retract. With the sliding pressing shaft and the clamping piece that can open and close synchronously with the pressing shaft, the integrated operation of cap opening and cap rolling functions is realized. In actual operation, there is no need to frequently switch operating tools, thus improving work efficiency.

[0025] Meanwhile, this utility model achieves the clamping function when opening the cap and the clamping function when rolling the cap by controlling the multiple separate clamping pieces to close together. The split structure ensures that the manual pliers of this utility model can be used for aluminum caps of different diameters, making it more widely applicable.

[0026] This invention effectively solves the problems of existing tools having limited functionality and poor adaptability, and has the advantages of high integration, convenient operation and strong adaptability. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the integrated manual pliers for pharmaceutical use according to this utility model;

[0028] Figure 2 This is a schematic diagram of the main structure of the rolling start assembly of this utility model;

[0029] Figure 3 This is a side view of the rolling start assembly of this utility model.

[0030] Figure 4 This is a schematic diagram of the structure of the pushing component of this utility model;

[0031] Figure 5 This is a schematic diagram of the installation structure of the positioning pin of this utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0033] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at point AA. Detailed Implementation

[0034] The following detailed description illustrates the specific implementation method:

[0035] The reference numerals in the accompanying drawings include: front shell 1, rear shell 2, clamping piece 3, working end 301, control end 302, pressing shaft 4, cover opening shaft core 5, fixed handle 6, movable handle 7, adjusting turntable 8, push rod 9, pushing shaft 10, adjusting button 11, adjusting screw 12, second elastic element 13, limiting groove 14, cover ring 15, positioning pin 16, first elastic element 17, adjusting ring 18, first push rod 19, first limiting channel 20, second push rod 21, second limiting channel 22, mounting boss 23.

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. It should be noted that in this embodiment, "front" refers to the side facing the operator, and "back" refers to the side facing the aluminum cap (or medicine bottle). Unless otherwise specified, "axial" refers to the axial direction of the pressing shaft, "radial" refers to the radial direction of the pressing shaft, and "circumferential" refers to the circumferential direction of the pressing shaft. This is understandable to those skilled in the art and will not be elaborated here.

[0037] The basic implementation examples are as follows: Figure 1-7As shown: A manual clamp for pharmaceutical use with integrated opening and closing mechanism, comprising a housing and an opening and closing assembly. The opening and closing assembly includes a pressing shaft 4, a cover-opening shaft core 5, and clamping plates 3. The pressing shaft 4 is disposed within the housing, and the cover-opening shaft core 5 is installed within the pressing shaft 4 along its central axis. The cover-opening shaft core 5 can be operated to be pushed out or retracted from the end of the pressing shaft 4. Multiple clamping plates 3 are provided, which are arranged circumferentially along the pressing shaft 4 and surround the end of the pressing shaft 4. The pressing shaft 4 can be driven to be pushed out or retracted, and the multiple clamping plates 3 can be closed synchronously with the pushing out of the pressing shaft 4; or the multiple clamping plates 3 can be opened synchronously with the retraction of the pressing shaft 4. In this embodiment, the housing serves as the basic support structure enclosing the internal moving parts, while the pressing shaft 4 is an axial moving part that transmits pushing and pulling forces. Its main function is to push and apply pressure to the aluminum cap of the medicine bottle. There are various ways to drive the pressing shaft 4, such as using a mechanical push rod 9 for manual pushing and pulling, or using an electric push rod 9, etc. The clamping piece 3 is used to clamp the medicine bottle (or aluminum cap) when opening the cap, and to clamp the aluminum cap when crimping the cap, so that the edge of the aluminum cap closes inward to achieve crimping. In this embodiment, there are three clamping pieces 3 evenly distributed around the circumference. In this embodiment, the multiple clamping pieces 3 move synchronously with the action of the pressing shaft 4. That is, when the pressing shaft 4 slides backward to press the cap, the multiple clamping pieces 3 close synchronously to achieve the clamping or clamping function, and when the pressing shaft 4 slides forward to retract, the multiple clamping pieces 3 also open synchronously to release the clamping or clamping of the medicine bottle or aluminum cap. The cap-opening shaft is a moving component installed within the pressing shaft 4. Controlling its extension or retraction changes the working mode of the manual clamps. When extended, it operates in cap-opening mode, with the cap-opening shaft 5 acting as the primary force-applying component. The thrust is applied to the aluminum cap of the medicine bottle via the cap-opening shaft 5, causing the cap to deform and detach. When the cap-opening shaft 5 retracts, the pressing shaft 4 becomes the primary force-applying component, pressing the aluminum cap against the medicine bottle while multiple clamping pieces 3 close, thus completing the capping. In this embodiment, the manual clamps allow for rapid switching between cap-opening and capping functions by manipulating the cap-opening shaft 5 to extend or retract. Combined with the sliding pressing shaft 4 and the clamping pieces 3 that open and close synchronously with the pressing shaft 4, integrated operation of cap-opening and capping functions is achieved. This eliminates the need for frequent tool switching during actual operation, improving work efficiency. Furthermore, the multiple separate clamping pieces 3 allow for application to capping and capping medicine bottles of different sizes, further expanding the applicability of this manual clamp.

[0038] In this embodiment, an adjustment assembly is also included. The adjustment assembly includes an adjustment turntable 8, which is installed inside the housing. An adjustment screw 12 is axially mounted on the adjustment turntable 8. The cover-opening shaft 5 is threadedly connected to the adjustment screw 12. The adjustment turntable 8 is rotatably drivable to control the cover-opening shaft 5 to slide out or retract. The axial drive of the cover-opening shaft 5 can be achieved in various ways, such as by an electric push rod 9 or a mechanical structure. In this embodiment, the axial drive of the cover-opening shaft 5 is achieved by using an adjustment turntable 8 with an integrated adjustment screw 12. Specifically, in this embodiment, the adjusting turntable 8 extends axially backward to form a mounting boss 23. The adjusting screw 12 is a threaded rod with external threads. The adjusting screw 12 is mounted on the mounting boss 23 and is coaxially arranged with the adjusting turntable 8. The front end of the cover-opening shaft core 5 is correspondingly provided with a channel with internal threads. At the same time, the pressing shaft 4 has a channel along its own central axis for passing through the cover-opening shaft core 5. The cover-opening shaft core 5 passes through the pressing shaft 4 from back to front and is connected to the adjusting screw 12 by threaded engagement. When the adjusting turntable 8 is rotated, the cover-opening shaft core 5 converts the circumferential rotation of the adjusting turntable 8 into axial translation under the action of the threads. This embodiment realizes the driving of the cover-opening shaft core 5 with a simple mechanical structure, thereby realizing the switching of the working mode of the manual pliers. To prevent the cover-opening shaft core 5 from rotating synchronously during the rotation of the adjustment turntable 8, it is necessary to limit the cover-opening shaft core 5 in the circumferential direction. In this embodiment, a cover-rolling ring 15 is integrally formed at the end of the pressing shaft 4. The cover-rolling ring 15 has multiple slots in the circumferential direction. There are multiple ways to form the cover-rolling ring 15. In this embodiment, it is directly obtained by machining on the rear end face of the pressing shaft 4 in the axial direction. The cover-opening shaft core 5 has multiple bosses corresponding to the positions of the multiple slots. The cover-opening shaft core 5 is limited in the circumferential direction by the interlocking of the bosses and slots. That is, the multiple bosses are respectively slidably inserted into the multiple slots. In this way, the cover-opening shaft core 5 is limited in the circumferential direction and cannot rotate, but it can still slide in the axial direction. Furthermore, by adjusting the depth of the slot, the pressing shaft 4 can also be axially limited after the cap-opening shaft 5 retracts; that is, when the cap-opening shaft 5 retracts, which is the cap-rolling mode, the cap-opening shaft 5 presses the pressing shaft 4 tightly onto the mounting boss 23, as shown in the figure. This setting ensures that the cap-opening shaft 5 and the pressing shaft 4 are a single unit during the cap-rolling process, and the cap-opening shaft 5 will not affect the cap-rolling process.

[0039] In this embodiment, a pushing assembly is also included. The pushing assembly includes a push rod 9 and a push shaft 10. The push shaft 10 is detachably installed on the push rod 9 and fits against the adjusting turntable 8 via a threaded connection. The push shaft 10, the adjusting turntable 8, and the pressing shaft 4 are arranged sequentially from front to back along the axial direction. The push rod 9 can be controlled to slide axially. The push rod 9 drives the adjusting turntable 8 and the pressing shaft 4 to slide synchronously in the axial direction via the push shaft 10. In this embodiment, the axial drive of the pressing shaft 4 is achieved through the pushing assembly. The push rod 9, with the push shaft 10 installed, is the main force transmission component. After the push-pull force is transmitted to the push rod 9, the push rod 9 pushes and pulls the adjusting turntable 8 via the push shaft 10. The adjusting turntable 8, in turn, pushes and pulls the pressing shaft 4 and the cover opening shaft core 5 simultaneously. The push shaft 10 can increase the actual contact area, so that the pushing force of the push rod is evenly transmitted to the adjusting turntable 8. The push-pull force of the push rod 9 can be applied manually or achieved by a drive source such as an electric push rod 9.

[0040] In this embodiment, the adjustment assembly further includes a positioning pin 16 and an adjustment push rod 9. The adjustment turntable 8 is provided with a limiting cavity along its central axis. The push rod 9 passes through the push shaft 10 and extends into the limiting cavity. The positioning pin 16 is installed on the push rod 9 and located within the limiting cavity. The adjustment turntable 8 is provided with a first limiting channel 20 and a second limiting channel 22 that extend radially. The adjustment push rod 9 includes a first push rod 199 and a second push rod 219. The positioning pin 16 is engaged with the first limiting channel 20 to lock the adjustment turntable 8 circumferentially. The first push rod 199 is slidably installed in the first limiting channel 20 to push the positioning pin 16 out of the first limiting channel 20 to release the lock on the adjustment turntable 8. Alternatively, the positioning pin 16 is engaged with the second limiting channel 22 to lock the adjustment turntable 8 circumferentially. The second push rod 219 is slidably installed in the second limiting channel 22 to push the positioning pin 16 out of the second limiting channel 22 to release the lock on the adjustment turntable 8. To ensure that the cap-opening shaft 5 does not extend or retract abnormally during the cap-opening and cap-rolling processes, a positioning pin 16 is provided to lock and limit the adjusting turntable 8. The positioning pin 16 tends to move radially outward under force, while the adjusting turntable 8 is equipped with two limiting channels to correspond to the cap-opening and cap-rolling working modes. In the cap-rolling mode, the positioning pin 16 is engaged within the first limiting channel 20, at which point the adjusting turntable 8 is circumferentially locked (axially unrestricted), and the cap-opening shaft 5 retracts. To push out the cap-opening shaft 5 by rotating the adjusting turntable 8, the first push rod 199 is driven to slide radially inward. The first push rod 199 pushes the positioning pin 16 out of the first limiting channel 20 to release the lock on the adjusting turntable 8. Then, the adjusting turntable 8 is rotated. When the second adjusting channel is aligned with the positioning pin 16, the positioning pin 16 engages with the second limiting channel 22, locking the adjusting turntable 8 again. At this time, the cap-opening shaft 5 is also pushed out with the rotation of the adjusting turntable 8, and the manual clamp switches from the cap-pressing mode to the cap-opening mode. If it is necessary to adjust the cap-opening mode back to the cap-pressing mode, simply drive the second push rod 219 to push the positioning pin 16 out of the second limiting channel 22, and then it can be rotated. This will not be elaborated here. In this embodiment, the positioning pin 16 not only limits the adjusting turntable 8, but also connects the push rod to the adjusting turntable to ensure that the push rod, adjusting turntable, and pressing shaft can move axially synchronously.

[0041] In this embodiment, the adjustment assembly further includes an adjustment ring 18 and an adjustment button 11. The housing includes a front shell 1, and the adjustment assembly is installed entirely on the front shell 1. The adjustment ring 18 is sleeved on the adjustment turntable 8 and located inside the front shell 1. The adjustment button 11 is installed on the adjustment ring 18 and extends radially to the outside of the front shell 1. The front shell 1 is provided with an adjustment groove extending circumferentially at the position corresponding to the adjustment button 11. The adjustment button 11 can be controlled to slide along the adjustment groove, and the adjustment ring 18 rotates circumferentially accordingly. The adjustment turntable 8 is provided with external teeth circumferentially, and the adjustment ring 18 is provided with internal teeth correspondingly. The adjustment turntable 8 and the adjustment ring 18 are engaged in transmission, and the adjustment turntable 8 rotates synchronously with the rotation of the adjustment ring 18. The rotation of the adjustment turntable 8 is achieved through a mechanical transmission structure. The adjustment ring 18 is set inside the front shell 1, which protects the entire adjustment assembly. The adjustment ring 18 is operated by the adjustment button 11. The adjustment ring 18 drives the adjustment turntable 8 to rotate through meshing transmission. The overall structure is simple and easy to operate, and the pure mechanical structure makes it easier for later maintenance and repair.

[0042] In this embodiment, two adjustment buttons 11 are provided, corresponding to the positions of the first limiting channel 20 and the second limiting channel 22, respectively. Each adjustment button 11 has a degree of freedom along the radial direction of the adjustment turntable 8, thereby driving the first push rod 199 and the second push rod 219 to slide, respectively. In this embodiment, the adjustment ring 18 has clearance holes corresponding to the positions of the first limiting channel 20 and the second limiting channel 22. The two adjustment buttons 11 are respectively held against the ends of the first push rod 199 and the second push rod 219 through the two clearance holes. By pressing the corresponding adjustment button 11, the corresponding first push rod 199 and the second push rod 219 can be driven to slide, thereby releasing the locking and limiting of the adjustment turntable 8 in the corresponding mode.

[0043] In this embodiment, the pushing component further includes a first elastic element 17, a movable handle 7, and a second elastic element 13. The positioning pin 16 is installed on the push rod 9 through the first elastic element 17. The front shell 1 is provided with a fixed handle 6. The front shell 1 extends forward along the axial direction to form a cantilever. The movable handle 7 is hinged to the cantilever. One end of the push rod 9 is hinged to the movable handle 7, and the other end extends to the limiting cavity of the adjusting turntable 8. The second elastic element 13 is sleeved on the push rod 9. One end of the second elastic element 13 is connected to the front shell 1 or the fixed handle 6, and the other end abuts against the movable handle 7. In this embodiment, both the first elastic element 17 and the second elastic element 13 are springs, as shown in the figure. The rear end of the push rod 9 is a hollow cavity. The positioning pin 16 is installed in the cavity of the push rod 9 through the first elastic element 17. Under the action of the elastic force of the first elastic element 17, the positioning pin 16 extends to the outside of the push rod 9 and is correspondingly engaged in the corresponding limiting channel. The setting of the first elastic element 17 ensures that the positioning pin 16 has a tendency to move radially outward, which ensures that when the adjusting turntable 8 is rotated to the corresponding position, the positioning pin 16 can lock the adjusting turntable 8. At the same time, the power source of the push rod 9 in this embodiment is also manual operation. The fixed handle provides a gripping base for the operator. The two hinges of the movable handle form a lever structure at the front shell 1. Pressing the movable handle can push the push rod 9, thereby realizing the axial translation of the pressing shaft 4. The setting of the second elastic element 13 ensures that the movable handle can automatically reset after the manual operation is removed, without human intervention, thus realizing the automatic retraction of the pressing shaft 4.

[0044] In this embodiment, the housing further includes a rear shell 2, and the rolling start assembly further includes a third elastic element. The rear shell 2 is coaxially mounted at the rear end of the front shell 1, and the rolling start assembly is entirely disposed within the rear shell 2. The clamping piece 3 has a control end 302 and a working end 301. The control end 302 of the clamping piece 3 is provided with a limiting groove 14. The control ends 302 of multiple clamping pieces 3 are disposed within the rear shell 2, and the control end 302 of any clamping piece 3 is attached to the radial outer surface of the pressing shaft 4. The third elastic element connects multiple clamping pieces 3 through the limiting groove 14 and limits them to the radial outer surface of the pressing shaft 4. In this embodiment, the third elastic element can be a ring spring or a spring ring, etc. The third elastic element simultaneously engages the limiting grooves 14 of multiple clamping pieces 3, connects the control ends 302 of multiple clamping pieces 3 in the circumferential direction, and limits them in the radial direction, so that multiple clamping pieces 3 are pressed onto the pressing shaft 4. The clamping piece 3 mainly has a certain degree of freedom in the radial direction. Therefore, the axial positioning of multiple clamping pieces 3 can be achieved by setting a limiting boss structure on the inner wall surface of the rear shell 2, while the radial degree of freedom of the clamping piece 3 can be achieved by setting gaps, etc. This is understandable to those skilled in the art and will not be elaborated here.

[0045] In this embodiment, the pressing shaft 4 is a variable diameter shaft with a diameter decreasing from front to back. The control ends 302 of the multiple clamping pieces 3 open or close synchronously with the diameter change of the pressing shaft 4. The working ends 301 of the multiple clamping pieces 3 close as the control ends 302 open, or open as the control ends 302 close. In this embodiment, the multiple clamping pieces 3 are driven to move synchronously by the diameter change of the pressing shaft 4. The diameter of the pressing shaft 4 is larger at the front and smaller at the back. The clamping pieces 3 are installed inside the rear shell 2. In this embodiment, the limiting boss is a radially closed annular structure. The limiting boss of the rear shell 2 is set between the working end 301 and the control end 302, thus forming a fulcrum. Each clamping piece 3 constitutes a lever structure. When the pressing shaft 4 slides backward, its diameter increases, the control end 302 opens, and the working end 301 closes synchronously. When the pressing shaft 4 slides forward, its diameter decreases, the control end 302 closes, and the working end 301 opens synchronously. This achieves the linkage action between the pressing shaft 4 and the multiple clamping pieces 3. In this embodiment, the pressing shaft 4 can be a variable diameter shaft with a gradually decreasing diameter, or it can be a special type of variable diameter shaft with a stepped shaft.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A medical tongs having a crimping and cutting function, characterized by: The device includes a housing and a rolling start assembly. The rolling start assembly includes a pressing shaft, a cover opening shaft, and a clamping piece. The pressing shaft is disposed inside the housing. The cover opening shaft is installed inside the pressing shaft along the central axis of the pressing shaft. The cover opening shaft can be operated to be pushed out or retracted from the end of the pressing shaft. The clamping pieces are provided in multiple ways. The multiple clamping pieces are arranged around the end of the pressing shaft and are arranged in the circumferential direction of the pressing shaft. The pressing shaft can be driven to be pushed out or retracted, and the multiple clamping pieces can be closed synchronously with the pushing out of the pressing shaft. Alternatively, multiple clips may open synchronously as the pressing shaft retracts.

2. The medical unscrambling integrated manual forceps according to claim 1, characterized in that: It also includes an adjustment assembly, which includes an adjustment turntable installed inside the housing. An adjustment screw is mounted on the adjustment turntable along the axial direction. The cover opening shaft is connected to the adjustment screw by a threaded connection. The adjustment turntable is rotatably drivable to control the cover opening shaft to slide out or retract.

3. The medical twist-off integrated manual forceps according to claim 2, wherein: It also includes a pushing assembly, which includes a push rod and a pushing shaft. The pushing shaft is detachably mounted on the push rod and fits against the adjusting turntable. The pushing shaft, adjusting turntable, and pressing shaft are arranged sequentially from front to back along the axial direction. The push rod can be controlled to slide axially. The push rod drives the adjusting turntable and pressing shaft to slide synchronously in the axial direction through the pushing shaft.

4. The integrated manual clamp for medical use according to claim 3, characterized in that: The adjustment assembly further includes a positioning pin and an adjustment push rod. The adjustment turntable is provided with a limiting cavity along the central axis. The push rod passes through the push shaft and extends to the limiting cavity. The positioning pin is installed on the push rod and is located in the limiting cavity. The adjustment turntable is provided with a first limiting channel and a second limiting channel that are radially through. The adjustment push rod includes a first push rod and a second push rod. The positioning pin engages with the first limiting channel to lock the adjusting turntable in the circumferential direction. The first push rod is slidably mounted in the first limiting channel to push the positioning pin out of the first limiting channel to release the locking of the adjusting turntable. Alternatively, the positioning pin engages with the second limiting channel to lock the adjusting turntable circumferentially, and the second push rod is slidably mounted in the second limiting channel to push the positioning pin out of the second limiting channel to release the locking of the adjusting turntable.

5. The integrated manual clamp for medical use according to claim 4, characterized in that: The adjustment assembly further includes an adjustment ring and an adjustment button. The housing includes a front housing. The adjustment assembly is integrally installed on the front housing. The adjustment ring is sleeved on the adjustment turntable and located inside the front housing. The adjustment button is installed on the adjustment ring and extends radially to the outside of the front housing. The front housing is provided with an adjustment groove extending circumferentially at the position corresponding to the adjustment button. The adjustment button can be controlled to slide along the adjustment groove, and the adjustment ring rotates circumferentially accordingly. The adjusting turntable has external teeth along its circumference, and the adjusting ring has corresponding internal teeth. The adjusting turntable and the adjusting ring are engaged in transmission, and the adjusting turntable rotates synchronously with the rotation of the adjusting ring.

6. The integrated manual clamp for medical use according to claim 5, characterized in that: There are two adjustment buttons, which are respectively positioned corresponding to the first limit channel and the second limit channel. The adjustment buttons have a degree of freedom in the radial direction of the adjustment turntable, so as to drive the first push rod and the second push rod to slide respectively.

7. The integrated manual clamp for medical use according to claim 6, characterized in that: The pushing assembly further includes a first elastic element, a movable handle, and a second elastic element. The positioning pin is installed on the push rod through the first elastic element. The front shell is provided with a fixed handle, and the front shell extends forward axially to form a cantilever. The movable handle is hinged to the cantilever. One end of the push rod is hinged to the movable handle, and the other end extends to the limiting cavity of the adjusting turntable. The second elastic element is sleeved on the push rod. One end of the second elastic element is connected to the front shell or the fixed handle, and the other end abuts against the movable handle.

8. The integrated manual clamp for medical use according to claim 7, characterized in that: The housing also includes a rear housing, and the rolling start assembly also includes a third elastic element; the rear housing is coaxially mounted at the rear end of the front housing, the rolling start assembly is integrally disposed within the rear housing, the clamping piece has a control end and a working end, the control end of the clamping piece is provided with a limiting groove, the control ends of multiple clamping pieces are disposed within the rear housing, and the control end of any clamping piece is attached to the radial outer surface of the pressing shaft, the third elastic element connects multiple clamping pieces through the limiting groove and limits them to the radial outer surface of the pressing shaft.

9. The integrated manual clamp for medical use according to claim 8, characterized in that: The pressing shaft is a variable diameter shaft with a diameter decreasing from front to back. The control ends of the multiple clamping pieces open or close synchronously with the diameter change of the pressing shaft. The working ends of the multiple clamping pieces close as the control ends open, or open as the control ends close.

10. The integrated manual clamp for medical use according to claim 1, characterized in that: The end of the pressing shaft is integrally formed with a cap ring, the cap ring is provided with multiple slots along the circumference, and the opening shaft is provided with multiple bosses corresponding to each other. The opening shaft is limited in the circumference by the bosses and slots engaging with each other.

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