Continuous firing tongs

Abstract

The present disclosure provides a continuous pincer, comprising: a handle part; a driving mechanism installed in the handle part; a connecting tube, a rear end of the connecting tube being connected to the handle part; a pincer head part installed at a front end of the connecting tube; and a joint part, comprising: a push-clamp shaft, the push-clamp shaft being connected to the pincer head part from the handle part through the connecting tube, the push-clamp shaft being configured to drive the pincer head part to clamp multiple clamps continuously and to drive the pincer head part to rotate relative to the connecting tube under the driving of the driving mechanism. The joint part drives the pincer head part to rotate relative to the connecting tube by driving the joint part to rotate by the driving mechanism.

Description

Technical Field

[0001] At least one embodiment of this disclosure relates to clamping pliers, and more particularly to a continuous-fire clamping pliers capable of continuously firing and clamping multiple clamps. Background Technology

[0002] Clip clamps are commonly used surgical instruments in surgical procedures to clamp ligation clips (Hemolok clips) to stop bleeding from blood vessels. In medical surgeries, especially minimally invasive techniques, when a patient is bleeding, after administering hemostatic drugs, clip clamps are used to clamp the major arteries to prevent further bleeding. However, most existing clip clamps are single-shot clamps, meaning that a new ligation clip must be attached to the clamp head after each clamping operation, leading to lower surgical efficiency.

[0003] The multi-shot clamp includes a push handle, a tube, and clamp heads mounted at the front end of the tube. It also includes a push-pull rod driven by the push handle, a feeding device, and a storage chamber. The storage chamber has a front end movably connected to the clamp head and a rear end opposite the front end. One end of the push-pull rod is connected to the push handle, and the other end is connected to the rear end of the storage chamber and acts on the storage chamber to open or close the clamp head. The feeding device includes a conveyor and a drive mechanism for moving the transmission mechanism. The storage chamber contains multiple clamps for clamping blood vessels. The transmission mechanism extends into the storage chamber to push the clamps into the clamp head. This multi-shot clamp can simultaneously feed and clamp multiple or consecutive hemostatic clamps without removing the clamps from the outside for reinstallation, enabling hemostasis of multiple blood vessels.

[0004] In the aforementioned continuous-fire clamping forceps, multiple clamps for clamping blood vessels are placed sequentially. During use, if it is necessary to apply the clamps, the operator needs to rotate their body to rotate the clamping forceps to clamp the clamps in a specific direction, which is inconvenient to operate and the clamping forceps are not flexible to use. Summary of the Invention

[0005] To address the technical problems in the prior art, this disclosure provides a series of clamps that use a drive mechanism to rotate the connecting part, which in turn drives the clamp head to rotate relative to the connecting tube.

[0006] One aspect of this disclosure provides a rapid-fire clamp, including a handle, a drive mechanism, a connecting tube, a clamp head, and a connecting portion. The drive mechanism is mounted within the handle, the rear end of the connecting tube is connected to the handle, and the clamp head is mounted at the front end of the connecting tube. The connecting portion includes a push-clamp shaft that extends from the handle through the connecting tube and connects to the clamp head. The push-clamp shaft is configured to drive the clamp head to fire rapidly and clamp multiple clamps under the drive of the drive mechanism, and to drive the clamp head to rotate relative to the connecting tube.

[0007] According to an embodiment of this disclosure, the pliers head includes: a protective tube, pliers, a clamping chamber, and a pushing mechanism. The rear end of the protective tube is rotatably coupled to the front end of the connecting tube. The pliers are configured to clamp a first clamp. The clamping chamber is configured to extend from the outside of the front end of the protective tube through a space defined by the pliers to the inside of the protective tube, and a plurality of clamps are movably and sequentially accommodated within a receiving channel defined by the clamping chamber. The pushing mechanism is disposed within the connecting tube and is configured to push the clamps sequentially toward the clamping portion under the drive of the coupling.

[0008] According to an embodiment of this disclosure, the connecting portion further includes a generally U-shaped connecting portion and a hollow shaft. Two connecting arms of the connecting portion respectively engage with the rear portions of the clamp arms of the pliers to drive the pliers to open or close. The hollow shaft is slidably sleeved on the outside of the push-clamp shaft and the inside of the connecting tube, with the end of the hollow shaft abutting against the bottom of the connecting portion on the side opposite to the push-clamp mechanism, to push the connecting portion forward and open the pliers.

[0009] According to an embodiment of this disclosure, the grip portion includes: a main body portion and an operating handle. A receiving space is formed within the main body portion, and the operating handle is connected to the main body portion. The drive mechanism includes a handwheel, which is rotatably mounted on the operating handle. Rotation of the handwheel drives the push clamp shaft to rotate via a transmission mechanism. According to an embodiment of this disclosure, the rear end of the push clamp shaft is formed as a drive section, and the outer surface of the drive section has at least one flat surface. The transmission mechanism includes: a support frame, a rotating wheel, and a ring cable. The support frame is disposed within the receiving space of the main body portion. The rotating wheel is rotatably mounted on the support frame, and the drive section of the push clamp shaft passes through the rotating wheel, causing the push clamp shaft to rotate under the drive of the rotating wheel to drive the protective tube and the clamp head to rotate relative to the connecting tube, and allowing the push clamp shaft to reciprocate linearly in the axial direction relative to the rotating wheel. The ring cable is sleeved on the rotating wheel and the handwheel, causing the handwheel to drive the rotating wheel to rotate via the ring cable.

[0010] According to an embodiment of this disclosure, the transmission mechanism further includes two first conduits, the two ends of which are respectively connected to the main body and the operating handle, and the loop cable passes through the two first conduits.

[0011] According to an embodiment of this disclosure, the operating handle includes a main handle and an auxiliary handle. The main handle is mounted on the main body, and a mounting portion is also mounted on the main handle. A handwheel is rotatably mounted on the mounting portion. The auxiliary handle is pivotally mounted on the main handle via a handle pivot. The drive mechanism further includes a moving part, a connecting rod, a second conduit, and a tension cable. The moving part is movably mounted in the mounting chamber. Both ends of the connecting rod are pivotally connected to the moving part and to portions of the auxiliary handle remote from the handle pivot, respectively, such that movement of the auxiliary handle relative to the main handle drives the moving part to reciprocate linearly within the mounting chamber via the connecting rod. The second conduit connects the main body and the mounting portion. The tension cable passes through the second conduit and the rotation shaft of the handwheel, and both ends of the tension cable are connected to the rear ends of the moving part and the push-clamp shaft, respectively.

[0012] According to embodiments of this disclosure, the repeating clamp further includes a first elastic member and a second elastic member. The first elastic member is configured such that the push clamp shaft pushes the connecting portion forward using the elastic force of the first elastic member. The second elastic member is configured such that the hollow shaft pushes the connecting portion forward using the elastic force of the second elastic member.

[0013] According to an embodiment of this disclosure, the second ends of both the hollow shaft and the push-clamp shaft extend through the connecting tube into the receiving space of the main body, with the push-clamp shaft extending from the second end of the hollow shaft. The bottom of the receiving space is provided with a first slot and a second slot. The first elastic member is at least partially received in the first slot, and a first end of the first elastic member abuts against a blocking protrusion formed on the push-clamp shaft. The second end of the first elastic member abuts against the end of the first slot, causing the push-clamp shaft to move rearward against the elastic force of the first elastic member. The second elastic member is at least partially received in the second slot and sleeved on the portion of the hollow shaft extending out of the push-clamp shaft. The first end of the second elastic member abuts against the second end of the hollow shaft, and the second end of the second elastic member abuts against the end of the second slot, causing the hollow shaft to move rearward against the elastic force of the second elastic member.

[0014] According to an embodiment of this disclosure, the push-clamp mechanism includes: a base, a cantilever, and at least one partition. The base is configured to reciprocate linearly under the drive of the connecting portion, with the rear end of a second clamp located at the rearmost side abutting against the base. The cantilever is detachably mounted on the base and extends forward from the base. At least one partition extends obliquely from the cantilever between two adjacent clamps and is configured to push the front clamp of the two clamps toward the clamping portion.

[0015] According to an embodiment of the present disclosure, the repeating clamp is equipped with a push-clamp shaft, which is driven to rotate by a drive mechanism. The push-clamp shaft drives the clamp head to rotate, thereby enabling the clamp head to rotate relative to the connecting tube. During surgery, the clamp can be rotated to a specific clamping angle by driving the drive mechanism within the handle to apply the clamp. Attached Figure Description

[0016] Figure 1 A schematic diagram of the clip is shown in three dimensions;

[0017] Figure 2 A schematic front view of a rapid-fire clamp according to an embodiment of the present disclosure is shown;

[0018] Figure 3 A perspective view of the head of a rapid-fire clamp according to an embodiment of the present disclosure is shown schematically.

[0019] Figure 4 An enlarged view of the grip portion according to an embodiment of the present disclosure is shown schematically;

[0020] Figure 5 A first-view perspective perspective view of the internal structure of the grip portion according to an embodiment of the present disclosure is shown schematically;

[0021] Figure 6 A second perspective view of the internal structure of the grip portion according to an embodiment of the present disclosure is schematically shown;

[0022] Figure 7 Schematic illustration Figure 5 A partial enlarged view of part A of the internal structure of the grip shown;

[0023] Figure 8 Schematic illustration Figure 5 A partial enlarged view of part B of the internal structure of the grip shown;

[0024] Figure 9 A perspective view of the main handle according to an embodiment of the present disclosure is shown schematically;

[0025] Figure 10 A perspective view of the internal structure of the pliers head according to an embodiment of the present disclosure is schematically shown;

[0026] Figure 11 An exploded perspective view of the clamp head and the connecting portion according to an embodiment of the present disclosure is shown schematically;

[0027] Figure 12 A perspective view of a protective tube according to one embodiment of the present disclosure is shown schematically;

[0028] Figure 13A perspective view of the base of the push-clamp mechanism according to an embodiment of the present disclosure is shown schematically;

[0029] Figure 14 A perspective view of the cantilever and separator of the push-clamp mechanism according to an embodiment of the present disclosure is shown schematically.

[0030] Figure 15 A perspective view of the connection portion according to an embodiment of the present disclosure is shown schematically;

[0031] Figure 16 A perspective view of a half-body according to an embodiment of the present disclosure is schematically shown;

[0032] Figure 17 A perspective view of a clamp arm according to an embodiment of the present disclosure is shown schematically;

[0033] Figure 18 A perspective view of the moving part according to an embodiment of the present disclosure is shown schematically;

[0034] Figure 19 A perspective view of the main body box according to an embodiment of the present disclosure is shown schematically;

[0035] Figure 20 Schematic illustration Figure 6 A partial enlarged view of part C of the internal structure of the grip shown;

[0036] Figure 21 Schematic illustration Figure 5 A partial enlarged view of the rotating mechanism of the grip shown;

[0037] Figure 22 Schematic illustration Figure 5 A partial enlarged view of part D of the internal structure of the grip shown;

[0038] Figure 23 A perspective view of a rotating mechanism according to an embodiment of the present disclosure is schematically shown; and

[0039] Figure 24 A perspective view of a flexible joint according to an embodiment of the present disclosure is shown schematically.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1- Grip section;

[0042] 11-Main body;

[0043] 111-Main body box;

[0044] 1111-First slot; 1112-Second slot; 1113-Support frame; 1114-Guide wheel bracket; 1115-First bearing groove; 1116-Second bearing groove;

[0045] 112-First elastic element; 113-Second elastic element; 114-Rotating wheel; 115-First guide wheel; 116-Second guide wheel; 117-Third guide wheel; 118-Fourth guide wheel; 119-Sixth guide wheel; 120-Seventh guide wheel;

[0046] 12-Operating handle;

[0047] 121-Main handle;

[0048] 1211-Mounting part; 1212-Receiving chamber; 1213-Moving part; 1214-Second through hole; 1215-Handwheel;

[0049] 122 - Second conduit; 123 - Tensioning cable; 124 - Ring cable; 125 - First conduit;

[0050] 126 - Rotating mechanism;

[0051] 1261 - Base; 1262 - Hollow shaft; 1263 - Extension; 1264 - Third through hole;

[0052] 127 - Swing pivot; 128 - First driving wheel; 129 - Second driving wheel; 1291 - Bearing; 1210 - Roller; 1220 - First swing cable; 1221 - Second swing cable; 1222 - Fifth guide wheel;

[0053] 13-Auxiliary handle; 14-Handle pivot; 15-Connecting rod;

[0054] 2-Joint;

[0055] 21-Connecting part; 211-Connecting arm; 2111-Fourth pivot hole; 2112-Fourth through hole;

[0056] 212 - Bottom; 2121 - Through-shaft hole;

[0057] 22-Push clamp shaft; 221-First blocking protrusion; 222-Second blocking protrusion;

[0058] 23-Hollow shaft; 231-Third blocking protrusion;

[0059] 3-Pliers head;

[0060] 31 - Second Pivot;

[0061] 32-clamp arm;

[0062] 321-Clamping part;

[0063] 322-First extension arm; 3221-First protrusion; 3222-First pivot hole;

[0064] 323-Second extension arm; 3231-Second protrusion; 3232-Second pivot hole; 3233-Clamping hole;

[0065] 33-Half-body;

[0066] 331 - Flat section; 332 - First through hole; 333 - Vertical wall;

[0067] 334 - Positioning groove; 3341 - Front wall; 3342 - Rear wall;

[0068] 335 - Convex rib; 3351 - Sloping slope;

[0069] 336 - Guide groove;

[0070] 34-Push-clamp mechanism;

[0071] 341-Separator;

[0072] 342 - Base; 3421 - Joint groove; 3422 - Groove;

[0073] 343-Cantilever;

[0074] 35-Second clamp; 351-Clamping arm; 352-Clamping protrusion;

[0075] 36 - First Pivot;

[0076] 4-Connecting pipe;

[0077] 5-Protective tube;

[0078] 51-Mounting hole; 52-Third pivot hole; 53-Circular groove; 54-Guide groove;

[0079] 6- Flexible joints;

[0080] 61-Starting joint; 62-Ending joint; 63-Intermediate joint; 64-Auxiliary cable; 65-Boss; 66-Hollow cylinder;

[0081] 7-Rotating bearing. Detailed Implementation

[0082] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings. However, this disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. In the accompanying drawings, for clarity, the dimensions and relative dimensions of layers and regions may be exaggerated, and the same reference numerals denote the same elements throughout.

[0083] The embodiments of the present disclosure will now be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the disclosure. In the following detailed description, numerous specific details are set forth to provide a thorough understanding of the embodiments of the present disclosure for ease of explanation. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts of the present disclosure.

[0084] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this disclosure. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0085] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0086] To facilitate understanding of the technical solutions disclosed herein by those skilled in the art, the following technical terms are explained.

[0087] When using expressions such as "at least one of A, B, and C," the expression should generally be interpreted in accordance with the meaning commonly understood by a person skilled in the art (e.g., "a system having at least one of A, B, and C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C, etc.). Similarly, when using expressions such as "at least one of A, B, or C," the expression should generally be interpreted in accordance with the meaning commonly understood by a person skilled in the art (e.g., "a system having at least one of A, B, or C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C, etc.).

[0088] It should be noted that in this disclosure, "front" and "back" are relative to the operator using the continuous-fire clamps provided in this disclosure. The end closer to the operator (e.g., a doctor) is "back," and the end farther from the operator is "front." Figure 1 The viewpoint of the continuously firing clamp shown is as follows: the upper end (the grip end) is "rear," and the lower end (the clamp end) is "front." For example, in... Figure 4 In the game, moving from left to right is called "moving backward," and moving from right to left is called "moving forward."

[0089] Figure 1 A schematic diagram of the clip in three dimensions is shown.

[0090] A ligation clip (Hemolok clip) is a non-metallic medical closure clip used for vascular hemostasis during surgery, as a substitute for suture ligation, or for clamping the urinary tract. For example... Figure 1 As shown, the clip (ligation clip) 35 has a general V-shape and includes two clamping arms 351 and two clamping protrusions 352 located at both ends of the clamping arms 351.

[0091] Figure 2 A schematic front view of a rapid-fire clamp according to an embodiment of the present disclosure is shown. Figure 3 A perspective view of the head of a rapid-fire clamp according to an embodiment of the present disclosure is shown schematically. Figure 4 An enlarged view of the grip portion according to an embodiment of the present disclosure is shown schematically.

[0092] One aspect of this disclosure provides a rapid-fire clamp, such as... Figures 2-4 As shown, the device includes a handle 1, a drive mechanism, a connecting tube 4, a clamp head 3, and a connecting part 2. The drive mechanism is installed inside the handle 1, the rear end of the connecting tube 4 is connected to the handle 1, and the clamp head 3 is installed at the front end of the connecting tube 4. The connecting part 2 includes a push-clamp shaft 22, which extends from the handle 1 through the connecting tube 4 and connects to the clamp head 3. The push-clamp shaft 22 is configured to drive the clamp head 3 to continuously clamp multiple clamps under the drive of the drive mechanism, and to drive the clamp head 3 to rotate relative to the connecting tube 4.

[0093] According to the embodiments of the present disclosure, the continuous-fire clamping forceps, by setting a push-clamp shaft 22, is driven by a drive mechanism to rotate. The push-clamp shaft 22 drives the forceps head 3 to rotate, thereby enabling the forceps head 3 to rotate relative to the connecting tube 4. During the operation, the forceps can be rotated to a specific clamping angle by the drive mechanism in the handle part 1 to clamp (that is, clamp the forceps onto the blood vessel or urinary tract), which is flexible and improves the efficiency of the operation.

[0094] Figure 5 This schematically illustrates a first-view perspective view of the internal structure of the grip portion according to an embodiment of the present disclosure. Figure 6 A second perspective view of the internal structure of the grip portion according to an embodiment of the present disclosure is shown schematically.

[0095] According to embodiments of this disclosure, such as Figures 4-6As shown, the grip portion 1 includes a main body 11, an operating handle 12, and an auxiliary handle 13. The operating handle 12 includes a main handle 121 mounted on the main body 11. The drive mechanism includes a handwheel 1215, and the automatic firing caliper also includes a transmission mechanism. The handwheel 1215 is disposed on the operating handle 12. Further, as... Figures 4-6 As shown, the handwheel 1215 is rotatably mounted on the mounting part 1211 on the main handle 121, and the handwheel 1215 can be driven to rotate by the transmission mechanism to drive the push clamp shaft 22 to rotate.

[0096] Figure 7 Schematic illustration Figure 5 A magnified view of part A of the internal structure of the grip shown. Figure 8 Schematic illustration Figure 5 A magnified view of part B of the internal structure of the grip shown.

[0097] According to embodiments of this disclosure, such as Figure 5 , Figure 6 and Figure 8 As shown, the rear end of the push-clamp shaft 22 is formed as a drive section, and the outer surface of the drive section has at least one flat surface. The transmission mechanism includes a support frame 1113, a rotating wheel 114, and a ring cable 124. Figure 5 and Figure 6 As shown, the support frame 1113 is disposed within the receiving space of the main body 11. The rotating wheel 114 is rotatably mounted on the support frame 1113. The drive section of the push-clamp shaft 22 passes through the rotating wheel 114, causing the push-clamp shaft 22 to rotate under the drive of the rotating wheel 114, thereby driving the clamp head 3 to rotate relative to the connecting tube 4, and allowing the push-clamp shaft 22 to reciprocate linearly in the axial direction relative to the rotating wheel 114. Figures 5-7 As shown, the ring cable 124 is sleeved on the rotating wheel 114 and the handwheel 1215, so that the handwheel 1215 drives the rotating wheel 114 to rotate through the ring cable 124, and the rotating wheel 114 drives the push clamp shaft 22 to rotate, thereby enabling the clamp head 3 to rotate.

[0098] According to embodiments of this disclosure, the drive segment of the push clamp shaft 22 is any one of non-circular shapes such as D-shaped, polygonal, or elliptical.

[0099] According to an embodiment of this disclosure, the length of the drive section of the push clamp shaft 22 is greater than the sum of the distance between two adjacent second clamps 35 and the length required for the clamps to open, so that when the push clamp shaft 22 pushes the push clamp mechanism forward, the rear end of the push clamp shaft 22 is always kept within the rotating wheel 114, so that the rotating wheel 114 can always drive the push clamp shaft to rotate.

[0100] According to embodiments of this disclosure, such as Figure 5 and Figure 6As shown, the transmission mechanism also includes two first conduits 125, with the two ends of the first conduits 125 connected to the main body 11 and the operating handle 12 respectively, and the ring cable 124 passes through the two first conduits 125, so that the first conduits 125 guide the ring cable to move within them.

[0101] According to embodiments of this disclosure, such as Figure 6 As shown, the transmission mechanism also includes a plurality of seventh guide wheels 120, which are configured to guide the annular cable from the rotating wheel 114 into the first conduit 125. The seventh guide wheels 120 are mounted within the main body 11 via guide wheel brackets 1114.

[0102] In one illustrative embodiment, such as Figure 6 As shown, there are two seventh guide wheels 120.

[0103] Figure 9 A perspective view of the main handle according to an embodiment of the present disclosure is schematically shown. Figure 10 A perspective view schematically illustrating the internal structure of the clamp head according to an embodiment of the present disclosure is shown. Figure 11 An exploded perspective view of the clamp head and the connecting portion according to an embodiment of the present disclosure is shown schematically. Figure 12 A perspective view of a protective tube according to one embodiment of the present disclosure is shown schematically.

[0104] According to embodiments of this disclosure, such as Figure 5 , Figure 6 and Figure 9 As shown, the main handle 121 has a receiving chamber 1212. The drive mechanism also includes a moving part 1213 and a connecting rod 15. The moving part 1213 is movably mounted in the receiving chamber 1212 of the main handle. The mounting part 1211 is mounted on the main body 11, and a handle pivot 14 is provided on the mounting part 1211. The two ends of the connecting rod 15 are pivotally connected to the moving part 1213 and the portion of the auxiliary handle 13 away from the handle pivot 14, respectively, so that the movement of the auxiliary handle 13 relative to the operating handle 12 drives the moving part 1213 to reciprocate linearly within the receiving chamber 1212 via the connecting rod 15. The auxiliary handle 13 is pivotally mounted on the main handle 121 via the handle pivot 14, and the movement of the auxiliary handle 13 relative to the main handle 121 drives the drive mechanism to reciprocate linearly, thereby driving the push clamp shaft 22 and the hollow shaft 23 to move in the axial direction. Figure 5 , Figure 6 and Figure 9 The image shows the main body of the handle, which can be understood as... Figure 5 , Figure 6 and Figure 9 The main body shown also has a cover attached by screws.

[0105] Figure 10 A perspective view schematically illustrating the internal structure of the clamp head according to an embodiment of the present disclosure is shown. Figure 11 An exploded perspective view of the clamp head and the connecting portion according to an embodiment of the present disclosure is shown schematically. Figure 12 A perspective view of a protective tube according to one embodiment of the present disclosure is shown schematically.

[0106] According to embodiments of this disclosure, such as Figure 2 , Figure 3 and Figure 10 As shown, the pliers head includes a protective tube 5, pliers, a clamping chamber, and a pushing mechanism. The rear end of the protective tube 5 is rotatably connected to the front end of the connecting tube 4. Further details can be found in the following section. Figure 12 The protective tube 5 has a circular groove 53 at its rear end, and a rotating bearing 7 is fitted into the circular groove 53. The protective tube 5 and the connecting tube 4 are rotatably connected via the rotating bearing 7. The front end of the pliers is provided with a clamping part 321 for clamping the first clamp. The clamping chamber is configured to extend from the outside of the front end of the protective tube 5 into the interior of the protective tube 5 through the space defined by the pliers, and multiple second clamps are movably and sequentially accommodated in the receiving channel defined by the clamping chamber. A pushing clamping mechanism is provided inside the protective tube 5 and is configured to push the clamps sequentially toward the clamping part 321 under the drive of the connecting part.

[0107] According to embodiments of this disclosure, the clamping compartment can accommodate 1, 2, 3, 5, 8, or other numbers of second clamps.

[0108] According to embodiments of this disclosure, such as Figure 12 As shown, a guide groove 54 is formed inside the protective tube 5 to accommodate the movement of the clamping part, so that the clamping part moves along the guide groove 54 at the front end of the protective tube 5.

[0109] According to an embodiment of this disclosure, by providing a guide groove 54 in the protective tube 5, the connecting part 21 moves back and forth within the guide groove 54, thereby making the opening and closing of the pliers symmetrical.

[0110] Figure 13 A perspective view of the base of the push-clamp mechanism according to an embodiment of the present disclosure is shown schematically. Figure 14 A perspective view of the cantilever and separator of the push-clamp mechanism according to an embodiment of the present disclosure is shown schematically.

[0111] According to embodiments of this disclosure, such as Figure 10 , Figure 13 and Figure 14As shown, the push-clamp mechanism 34 includes a base 342, a cantilever 343, and at least one separator 341. The separator 341 is inserted between two adjacent second clamps 35 and configured to push the front second clamp towards the clamping portion 321. The base 342 is configured to reciprocate linearly under the drive of the connecting portion 2, and the rear end of the rearmost second clamp 35 abuts against the base 342 to move forward under the push of the base 342. Figure 13 and Figure 14 As shown, the cantilever 343 is detachably mounted on the base 342 and extends forward from the base 342, and the partition 341 extends obliquely from the cantilever 343 between two adjacent second clips 35 and abuts against the rear end of the base 342 located at the front.

[0112] Thus, in the continuous clamping forceps according to the embodiments of the present disclosure, two adjacent clamps in the clamping chamber are separated by a partition 341. The two adjacent clamps are in a state separated by the partition 341. During the movement of the clamps, one clamp located in front of the partition 341 is pushed to the clamping part 321, thereby realizing continuous clamping and avoiding the phenomenon of clamping during the movement of two adjacent clamps. The clamp located in front can be pushed out smoothly, improving surgical efficiency and saving surgical time.

[0113] According to embodiments of this disclosure, the cantilever is made of an elastic material that can swing up and down, such as stainless steel.

[0114] According to embodiments of this disclosure, such as Figure 13 As shown, the base 342 has a connecting groove 3421 on one side of the cantilever 343. The cantilever 343 is detachably connected to the connecting groove 3421 by screw threads. The protective tube 5 has a mounting hole 51 at the part opposite to the screw.

[0115] According to an embodiment of this disclosure, the cantilever 343 and base 342 of the push-clamp mechanism 34 can be disassembled or secured using a tool such as a screwdriver through the mounting hole 51 on the protective tube 5. Thus, when disassembling the cantilever 343, a second clamp is pushed into the front of the base; then, the cantilever 343 is connected to the base 342; then, another second clamp is pushed into the front of the separator 341.

[0116] According to embodiments of this disclosure, the mounting hole 51 can be a round hole or an elongated hole.

[0117] According to an embodiment of this disclosure, the hole on the base 342 that connects to the cantilever 343 can be a threaded hole.

[0118] According to embodiments of this disclosure, such as Figure 13As shown, the inner side of the cantilever 343 is provided with a groove 3422 suitable for partially accommodating the rear part of the second clip 35, and the shape of the groove 3422 matches the shape of the rear part of the second clip.

[0119] According to an embodiment of the present disclosure, by providing a groove 3422, the rear part of a second clip 35 near the front end of the base 342 abuts against the groove 3422. When the pushing mechanism 34 pushes the second clip 35 forward, the second clip 35 located on the rearmost side can move forward smoothly.

[0120] Figure 15 A perspective view of the connection portion according to an embodiment of the present disclosure is shown schematically.

[0121] According to embodiments of this disclosure, such as Figure 10 and Figure 15 As shown, the joint 2 also includes a generally U-shaped connecting part 21 and a hollow shaft 23. (As...) Figure 10 and Figure 15 As shown, the two connecting arms 211 of the connecting part 21 are respectively engaged with the rear part of the clamp arm 32 of the pliers to drive the pliers to open or close (further details will follow). Figure 17 (Detailed description) The base 342 of the push clamp mechanism 34 is located between the two connecting arms 211. The push clamp shaft 22 passes through the bottom 212 of the connecting part 21 and connects to the base 342 of the push clamp mechanism 34. The push clamp shaft 22 is configured to drive the push clamp mechanism 34 to reciprocate linearly in the front-back direction to pull the connecting part 21 backward to close the clamps, and is rotatable relative to the hollow shaft 23 to drive the clamp head 3 to rotate relative to the connecting tube 4 via the connecting part 21 and / or the push clamp mechanism 34. The hollow shaft 23 is slidably sleeved on the outside of the push clamp shaft 22 and the inside of the connecting tube 4. The front end of the hollow shaft 23 abuts against the side of the bottom 212 of the connecting part 21 opposite to the push clamp mechanism 34 to push the connecting part 21 forward and open the clamps as the hollow shaft 23 moves forward.

[0122] According to embodiments of this disclosure, such as Figure 15 As shown, the bottom 212 of the connecting part 21 is provided with a through hole 2121, allowing the push clamp shaft 22 to pass through the connecting part 21 and connect to the base 342. A connecting arm 211 adjacent to the cantilever 343 of the push clamp mechanism 34 is provided with a fourth through hole 2112 aligned with the mounting hole 51 of the protective tube 5. Tools such as screwdrivers can pass through the mounting hole 51 and the fourth through hole 2112 to disassemble or fix the cantilever 343 and the base 342 of the push clamp mechanism 34.

[0123] In one embodiment, the push-clamp shaft 22 is non-rotatably coupled to the base 342 of the push-clamp mechanism 34. For example, the front end of the push-clamp shaft 22 has a non-circular cross-section, such as a D-shape, polygon, or ellipse. In this way, the front end of the push-clamp shaft 22 can be coupled to the rear side of the base 342 of the push-clamp mechanism, so that the rotation of the push-clamp shaft 22 can drive the push-clamp mechanism to rotate, thereby driving the connecting part and / or the pliers to rotate, which in turn causes the pliers head 3 to rotate relative to the connecting tube.

[0124] In an alternative embodiment, the push-clamp shaft 22 is non-rotatably coupled to the bottom 212 of the connecting portion 21. Thus, rotation of the push-clamp shaft 22 can drive rotation of the connecting portion, thereby driving rotation of the connecting pliers, which in turn causes the pliers head 3 to rotate relative to the connecting tube 4.

[0125] In a further alternative embodiment, the push clamp shaft 22 is non-rotatably coupled to the base 342 of the push clamp mechanism 34 and the bottom 212 of the connecting part 22, such that the rotation of the push clamp shaft 22 can simultaneously drive the push clamp mechanism and the connecting part 2 to rotate, thereby driving the clamp head 3 to rotate relative to the connecting tube 4.

[0126] According to the embodiments of this disclosure, the push clamp shaft 22 can not only drive the clamp head 3 to rotate relative to the connecting tube 4 through the transmission mechanism under the drive mechanism (handwheel 1215), but also pull the connecting part 21 backward when the main handle and auxiliary handle are gripped, so that the clamp clamps the first clamp (that is, clamps the clamp onto the blood vessel or urinary tract). When the main handle and auxiliary handle are released (the force of gripping the handle disappears), the push clamp mechanism 34 is pushed forward, so that the clamp opens and pushes the second clamp located in the clamping chamber forward, and pushes the second clamp located at the front end to the clamping part 321.

[0127] According to an embodiment of this disclosure, the outer diameter of the hollow shaft 23 is larger than the diameter of the through hole 2121 of the bottom 212 of the connecting portion 21, so that the hollow shaft 23 slides through the through hole to push the connecting portion 21 forward.

[0128] According to embodiments of this disclosure, the material of the push-clamp shaft 22 and / or the hollow shaft 23 can be any of metal, plastic, etc. For example, it can be stainless steel.

[0129] According to embodiments of this disclosure, such as Figure 10 and Figure 11 As shown, the front end of the push clamp shaft 22 is provided with a first blocking protrusion 221 protruding in the circumferential direction. The first blocking protrusion 221 abuts against the base 342 of the push clamp mechanism 34 and the bottom 212 of the connecting part 21, so as to push the push clamp mechanism 34 forward or pull the connecting part 21 backward under the drive of the drive mechanism.

[0130] Figure 16 A perspective view of a half-body according to an embodiment of the present disclosure is shown schematically.

[0131] According to embodiments of this disclosure, such as Figure 11 As shown, the clamping section includes two interlocking halves 33. Figure 16 As shown, each half-body 33 includes a generally rectangular flat portion 331 and two vertical walls 333. The flat portion 331 is provided with a first through hole 332, and the two vertical walls 333 extend perpendicularly to the flat portion 331 from both sides along its length. The two vertical walls 333 are provided with at least two pairs of positioning grooves 334 extending in the lateral direction, which are adapted to engage with the clamping protrusions 352 on the clamping arms 351 of the clamp.

[0132] According to embodiments of this disclosure, such as Figure 16 As shown, the front wall 3341 of the positioning groove 334 is inclined to allow the clamping protrusion 352 to disengage from the positioning groove 334 when the second clamp 35 is pushed forward, and the rear wall 3342 of the positioning groove 334 is parallel to the lateral direction to prevent the clamping protrusion 352 from disengaging from the positioning groove 334 when the second clamp 35 is pulled backward.

[0133] According to embodiments of this disclosure, such as Figure 11 and Figure 16 As shown, a protruding rib 335 is provided on the flat portion 331 of one half of half 33 adjacent to the cantilever 343. The rear end of the rib 335 is formed as a ramp 3351. The ramp 3351 cooperates with the separator 341 to guide the separator 341 to move between the two second clamps 35, so that the rib 335 holds the separator 341 between the two second clamps 35 during the forward movement of the push clamping mechanism 34.

[0134] According to the embodiments of this disclosure, by providing a protruding rib 335 on the half body 33, during the process of the pushing clamping mechanism 34 pushing the second clamp forward, the rear end of the second clamp 35 is always in contact with the front end of the separator 341, and will not lose contact with the separator 341 due to the elastic downward movement of the clamping arm 351.

[0135] According to an embodiment of the present disclosure, a first through hole 332 is provided on the protruding rib 335, such that when the first pivot 36 passes through the first through hole 332, an obstacle that would prevent the second clamp 35 from moving forward is avoided in the receiving channel formed by the two halves 33.

[0136] According to embodiments of this disclosure, such as Figure 16 As shown, the flat portion 331 is provided with a guide groove 336 that opens toward the rear. The base 342 of the push clamping mechanism is partially accommodated in the guide groove 336 so as to reciprocate linearly in the front-rear direction within the guide groove 336.

[0137] According to an embodiment of this disclosure, the length of the guide groove 336 is greater than or equal to the distance between two adjacent second clips 35 within the clamping compartment.

[0138] Figure 17 A perspective view of a clamp arm according to an embodiment of the present disclosure is shown schematically.

[0139] According to embodiments of this disclosure, such as Figure 17 As shown, each clamp arm 32 also includes a drive unit for driving the clamping part. The drive unit includes a first extension arm 322 and a second extension arm 323. The first extension arm 322 extends rearward from the rear end of the clamping part 321, and the rear end of the first extension arm 322 has an inwardly protruding first protrusion 3221, on which a first pivot hole 3222 is provided; the second extension arm 323 extends rearward from the rear end of the clamping part 321 parallel to the first extension arm 322, and the length of the second extension arm 323 is greater than the length of the first extension arm 322. The rear end of the second extension arm 323 has an inwardly protruding second protrusion 3231, on which a second pivot hole 3232 aligned with the first pivot hole 3222 is provided, and an elongated clamping hole 3233 located behind the second pivot hole 3232 is provided. Figure 4 and Figure 5 As shown, the pliers and clamping part are connected to the front end of the protective tube 5 by means of a first pivot 36 passing through a first pivot hole 3222, a second pivot hole 3232 and a first through hole 332. The second protrusion 3231 is connected to the connecting arm 211 by means of a second pivot 31 passing through a clamping hole 3233. The clamping hole 3233 is set to be inclined relative to the front-back direction, so that when the second pivot 31 moves relative to the clamping hole 3233 under the drive of the connecting part 21, it drives the pliers arm 32 to rotate around the first pivot 36, so that the pliers open or close.

[0140] In one illustrative embodiment, the first pivot 36 is a rigid axis.

[0141] According to embodiments of this disclosure, the rapid-fire clamp includes at least two first pivots 36 and two second pivots 31.

[0142] According to an embodiment of the present disclosure, a third pivot hole 52 is provided at the front end of the protective tube 5, and a first pivot 36 connects the clamping part and the two clamp arms 32 to the protective tube 5 through the third pivot hole 52, so that the two clamp arms 32 can rotate around the first pivot 36.

[0143] In one illustrative embodiment, the number of third pivot holes 52 is two.

[0144] According to an embodiment of this disclosure, the first surface of the first extension arm 322 of the first clamp arm 32 contacts the second extension arm 323 of the second clamp arm 32, and the second surface opposite to the first surface contacts the inner wall of the guide groove 54 of the protective tube 5.

[0145] According to embodiments of this disclosure, such as Figure 10 and Figure 15 As shown, the front ends of the two connecting arms 211 of the connecting part 21 are respectively provided with two coaxial fourth pivot holes 2111. Figure 10 As shown, the second pivot 31 passes through the fourth pivot hole 2111 and is inserted into the clamping hole 3233, connecting the two connecting arms 211 of the connecting part 21 to the two clamp arms 32, so that the connecting part 21 can drive the second pivot 31 to move within the clamping hole 3233 to drive the pliers to rotate around the first pivot 36, thereby realizing the opening and closing of the pliers.

[0146] According to an embodiment of this disclosure, by providing a guide groove 54 in the protective tube 5, the connecting part 21 moves back and forth within the guide groove 54, thereby making the opening and closing of the pliers symmetrical.

[0147] Figure 18 A perspective view of the movable part according to an embodiment of the present disclosure is shown schematically.

[0148] According to embodiments of this disclosure, such as Figure 18 As shown, a fixing groove is provided at one end of the moving part 1213, and a second through hole 1214 is provided on the groove wall. The rotating shaft passes through the second through hole 1214 and the through hole on the connecting rod 15, so that the moving part 1213 in the main handle 121 is connected to the connecting rod 15. Both ends of the connecting rod 15 have through holes. One end is pivotally connected to the moving part 1213 in the main handle 121, and the other end is pivotally connected to the auxiliary handle 13. One end of the tension cable 123 (described in detail below) passes through the through hole 1215 provided on the moving part 1213 and is connected to the moving part 1213.

[0149] In one illustrative embodiment, such as Figure 5 , Figure 6 and Figure 18 As shown, the auxiliary handle 13 has a first circular hole at one end connected to the main handle 121. A handle pivot 14 is mounted on the mounting portion 1211 of the main handle 121. The first circular hole is inserted into the handle pivot 14 of the main handle 121, allowing the auxiliary handle 13 to rotate around the handle pivot 14. In an alternative embodiment, the handle pivot 14 is mounted on the main handle 121.

[0150] Figure 19 A perspective view of the main body box according to an embodiment of the present disclosure is shown schematically.

[0151] According to embodiments of this disclosure, such as Figure 5 , Figure 6 and Figure 19 As shown, the repeating clamp also includes an elastic mechanism installed in the grip portion 1. The elastic mechanism is configured to use elastic force to drive the connecting portion 2 to push the clamp open to release the first clamp during the release of the grip portion 1, and to drive the connecting portion 2 to push the second clamp 35 into the clamping portion 321 of the clamp.

[0152] According to embodiments of this disclosure, such as Figure 5 , Figure 6 and Figure 19 As shown, the elastic mechanism includes a first elastic element 112 and a second elastic element 113. When the grip portion is gripped, causing the auxiliary handle 13 to approach the main handle 121, the first elastic element 112 and the second elastic element 113 elastically contract due to the pull of the tension cable 123. When the grip portion is released (the force of gripping the grip portion disappears), the first elastic element 112 is configured such that the push-clamp shaft 22 uses the elastic force of the first elastic element 112 to push the connecting portion 21 forward. The second elastic element 113 is configured such that the hollow shaft 23 uses the elastic force of the second elastic element 113 to push the connecting portion 21 forward.

[0153] According to embodiments of this disclosure, the first elastic element 112 and / or the second elastic element 113 are springs sleeved on the push-clamp shaft 22.

[0154] In one illustrative embodiment, such as Figures 5-7 As shown, the auxiliary handle 13 is also provided with a second circular hole for connection with the connecting rod 15, allowing the moving part 1213 to move within the receiving chamber 1212 within the main handle 121. When the auxiliary handle 13 is close to the main handle 121, the auxiliary handle 13 pushes the moving part 1213 to move away from the auxiliary handle 13, causing the moving part 1213 to tighten the tension cable 123, which in turn compresses the first elastic element 112 and the second elastic element 113, resulting in the pliers closing. In one embodiment, the handwheel 1215 is rotatably mounted on the mounting part 1211 via a hollow pivot, and the tension cable 123 passes through the hollow pivot from the outside of the mounting part and connects to the moving part 1213 mounted on the main handle 121. In this way, the auxiliary handle mechanism can be made compact, and it is convenient for the operator to hold the main handle 121 and the auxiliary handle 13. That is, by gripping the auxiliary handle 13, the operator can tighten the tension cable 123, which causes the push clamp shaft to move axially back and forth. Alternatively, the operator can use the thumb to rotate the handwheel 1215 to drive the ring cable 124 to move, which causes the push clamp shaft 22 to rotate back and forth.

[0155] According to embodiments of this disclosure, such as Figure 5 and Figure 6As shown, the rear ends of both the hollow shaft 23 and the push-clamp shaft 22 extend through the connecting pipe 4 into the receiving space of the main body 11, and the push-clamp shaft 22 extends from the second end of the hollow shaft 23. That is, the length of the push-clamp shaft 22 is greater than the length of the hollow shaft 23. Figure 12 , Figure 13 and Figure 18 As shown, the bottom 212 of the accommodating space is provided with a first slot 1111 and a second slot 1112. The first elastic member 112 is at least partially accommodated in the first slot 1111, and the first end of the first elastic member 112 abuts against the second blocking protrusion 222 formed on the push clamp shaft 22. The second end of the first elastic member 112 abuts against the end of the first slot 1111, so that the push clamp shaft 22 moves backward against the elastic force of the first elastic member 112 under the pull of the tension cable 123. The second elastic member 113 is at least partially accommodated in the second slot 1112 and sleeved on the portion of the push clamp shaft 22 that extends out of the hollow shaft 23. The first end of the second elastic member 113 abuts against the second end of the hollow shaft 23, and the second end of the second elastic member 113 abuts against the end of the second slot 1112, so that the hollow shaft 23 moves backward against the elastic force of the second elastic member 113 as the push clamp shaft 22 moves backward.

[0156] According to embodiments of this disclosure, such as Figure 5 and Figure 6 As shown, the main body 11 includes a main body box 111 and a cover that are joined together vertically. Figure 13 (The cover is removed). For example, multiple connecting posts with threaded holes are provided inside the main body box 111, and the cover is installed on the main body box 111 by multiple screws threaded onto the mounting posts. The front end of the push-clamp shaft 22 is connected to the base 342 of the push-clamp mechanism 34. The first blocking protrusion 221 on the push-clamp shaft 22 is located between the push-clamp mechanism 34 and the connecting part 21, so that when the push-clamp shaft 22 moves backward, it can drive the connecting part 21 to move backward. The rear end of the push-clamp shaft 22 extends through the connecting tube 4 and the hollow shaft 23 into the main body part 11. The rear end of the push-clamp shaft 22 is provided with a second blocking protrusion 222, which contacts the first elastic member 112 inside the main body box 111. The first elastic member 112 is placed in the first slot 1111. The front end of the hollow shaft 23 extends through the connecting tube 4 to the rear side of the connecting part 21, and the rear end of the hollow shaft 23 contacts the second elastic member 113 inside the main body box 111. The second elastic member 113 is placed in the second slot 1112.

[0157] When the push clamp shaft 22 moves backward, the second blocking protrusion 222 located at the rear end of the push clamp shaft 22 compresses the first elastic member 112. The first blocking protrusion 221 on the push clamp shaft 22 located at the front end of the connecting part 21 drives the connecting part 21 to move backward. The connecting part 21 abuts against the front end of the hollow shaft 23 and pushes the hollow shaft 23 to move backward. The hollow shaft 23 squeezes the second elastic member 113, causing the second elastic member 113 to be compressed.

[0158] In one illustrative embodiment, a third blocking protrusion 231 is provided circumferentially at the rear end of the hollow shaft 23. The third blocking protrusion 231 contacts the front end of the second elastic member 113 to squeeze the second elastic member 113 and compress it.

[0159] In an alternative embodiment, a third blocking protrusion may be formed at a position adjacent to the rear end of the hollow shaft 23.

[0160] According to embodiments of this disclosure, such as Figure 5 , Figure 6 and Figure 8 As shown, the rapid-fire clamp also includes a tension cable assembly. When the grip is tightened, causing the auxiliary handle 13 to move towards the main handle 12, the moving part 1213 of the drive mechanism pulls the push clamp shaft 22 backward via the tension cable assembly. The tension cable assembly includes a second cable tube 122 and a tension cable 123. The two ends of the second cable tube 122 are connected to the main body 11 and the auxiliary handle 13, respectively. The tension cable 123 passes through the second cable tube 122 and the rotation shaft of the handwheel 1215, and its two ends are connected to the drive mechanism and the push clamp shaft 22, respectively. Thus, the second cable tube 122 guides the tension cable 123 to slide relative to the second cable tube 122.

[0161] Furthermore, the two ends of the tension cable 123 are respectively connected to the moving part 1213 and the rear end of the push clamp shaft 22, so that when the moving part 1213 moves, it drives the tension cable 123 to move, thereby causing the push clamp shaft 22 to move backward. On the other hand, when the grip is released (the force of gripping the grip disappears), the push clamp shaft 22 uses the elastic force of the first elastic member 112 to push the connecting part 21 forward.

[0162] According to embodiments of this disclosure, the tension cable assembly further includes a plurality of sixth guide wheels 119. The tension cable 123, which extends from the second conduit 122 within the main body, is guided by the plurality of sixth guide wheels 119 to the rear end of the push clamp shaft 22.

[0163] In one illustrative embodiment, the number of sixth guide wheels 119 is one.

[0164] In one illustrative embodiment, such as Figure 5As shown, the continuous-fire clamp also includes two first bearings. A rotating wheel 114 is mounted on the drive section of the push-clamp shaft 22 and clamped between the two first bearings. The two first bearings are placed on a support frame 1113 within the main body 11 and rotatably support the push-clamp shaft 22. Cylindrical protrusions can be provided on both sides of the rotating wheel 114. The rotating wheel 114 is mounted on the two first bearings via these cylindrical protrusions. The push-clamp shaft 22 passes through the rotating wheel 114 and rotates with it.

[0165] According to embodiments of this disclosure, such as Figure 2 As shown, a flexible joint 6 is provided between the connecting pipe 4 and the protective pipe 5. The operating handle 12 is configured to rotate and swing relative to the main body 11. The transmission mechanism also includes a second drive wheel 129, a first swing cable 1220, and a plurality of first guide wheels 115. The transmission mechanism is connected between the flexible joint 6 and the operating handle 12, such that the rotation and swing of the operating handle 12 relative to the main body 11 drives the flexible joint 6 to swing in two mutually perpendicular planes.

[0166] In an alternative embodiment, the flexible joint can be omitted, allowing the connecting tube 4 and the protective tube 5 to be directly and rotatably connected.

[0167] Figure 20 Schematic illustration Figure 6 A partial enlarged view of part C of the internal structure of the grip 1 shown. Figure 21 Schematic illustration Figure 5 A partial enlarged view of the rotating mechanism portion of the grip 1 shown.

[0168] According to embodiments of this disclosure, such as Figure 2 , Figure 5 , Figure 6 , Figure 20 , Figure 21 and Figure 23 As shown, the operating handle 12 also includes a rotating mechanism 126 and a first drive wheel 128. The first end of the rotating mechanism 126 ( Figure 23 The upper end of the rotating mechanism 126 is rotatably coupled to the main body 11. The rotation of the rotating mechanism 126 relative to the main body 11 drives the flexible joint 6 to swing within a first plane via a transmission mechanism (described in detail below). The main handle 121 is rotatably connected to the second end of the rotating mechanism 126 via a swing pivot 127. Figure 23 (The lower end of the middle). For example Figure 5 As shown, the first drive wheel 128 is mounted on the swing pivot 127. The swing of the main handle 121 relative to the rotation mechanism 126 drives the flexible joint 6 to swing in a second plane perpendicular to the first plane via the transmission mechanism. The push-clamp shaft 22 and the hollow shaft 23, both made of flexible shaft, pass through the flexible joint 6, causing the push-clamp shaft 22 and the hollow shaft 23 to bend with the flexible joint 6.

[0169] According to embodiments of this disclosure, the push-clamp shaft 22 and / or hollow shaft 23 may be made of nickel-titanium alloy or stainless steel.

[0170] In one illustrative embodiment, the push-clamp shaft 22 is a flexible steel wire shaft.

[0171] According to an embodiment of the present disclosure, the swing pivot 127 is rotatably mounted on the second end of the rotating mechanism 126, such that the swing of the main handle 121 relative to the rotating mechanism 126 drives the swing pivot 127 to rotate, thereby driving the first drive wheel 128 to rotate relative to the rotating mechanism 126.

[0172] Figure 22 Schematic illustration Figure 5 A partial enlarged view of part D of the internal structure of the grip 1 shown.

[0173] According to embodiments of this disclosure, such as Figure 5 , Figure 6 , Figure 20 and 21 As shown, the second drive wheel 129 is mounted on the rotating mechanism 126. A first swing cable 1220 passes around the second drive wheel 129, with its first and second ends connected to two opposite positions in the first radial direction of the flexible joint 6. A plurality of first guide wheels 115 are mounted on the main body 11, suitable for guiding the first swing cable 1220 into the connecting tube 4. Thus, rotation of the second drive wheel 129 will cause the flexible joint 6 to swing in the first radial direction via the first swing cable 1220 passing through the connecting tube 4.

[0174] According to an embodiment of this disclosure, by rotating the main handle 121, the rotating mechanism 126 drives the second drive wheel 129 to rotate, the first swing cable 1220 moves around the second drive wheel 129, one end of the first swing cable 1220 is tightened and the other end is relaxed, the flexible joint 5 deflects towards the tightened end, thereby causing the flexible joint 5 to deflect in the first plane.

[0175] In one illustrative embodiment, the first swing cable 1220 is wound multiple times around the second drive wheel 129.

[0176] According to an embodiment of this disclosure, the middle part of the first swing cable 1220 is fixed on the second drive wheel 129, so that the first swing cable 1220 follows the rotation of the second drive wheel 129 to tighten one end and loosen the other end, so that the flexible joint bends.

[0177] According to an embodiment of the present disclosure, the main body 11 further includes a plurality of guide wheel brackets 1114, and a plurality of first guide wheels 115 are mounted in the accommodating space of the main body 11 via the guide wheel brackets 1114.

[0178] In one illustrative embodiment, such as Figure 5 and Figure 22 As shown, four first guide wheels 115 are installed inside the main body 11 via guide wheel brackets 1114.

[0179] Figure 23 A perspective view of a rotating mechanism according to an embodiment of the present disclosure is shown schematically.

[0180] According to embodiments of this disclosure, such as Figure 23 As shown, the rotating mechanism 126 has a transmission channel from the first end to the second end.

[0181] According to embodiments of this disclosure, such as Figure 5 and Figure 6 As shown, the transmission mechanism also includes a second guide wheel 116, a third guide wheel 117, a second swing cable 1221, and multiple fourth guide wheels 118. The second guide wheel 116 and the third guide wheel 117 are located at the end of the rotating mechanism 126 opposite to the main handle 121. The second swing cable 1221 passes around the first drive wheel 128, through the transmission channel, and then around the second guide wheel 116 and the third guide wheel 117 respectively. The first and second ends of the second swing cable 1221 are respectively connected to two opposite positions of the flexible joint 6 in a second radial direction perpendicular to the first radial direction. Thus, the rotation of the first drive wheel 128 will cause the flexible joint 6 to swing in the second radial direction via the second swing cable 1221 passing through the connecting tube 4, allowing the flexible joint 6 to swing in two dimensions. Multiple fourth guide wheels 118 are mounted on the main body 11 and are used to guide the second swing cable 1221 into the connecting tube 4.

[0182] According to embodiments of this disclosure, the oscillation of the axes of the flexible joint 5 and the clamp head 3 in a first plane can be referred to as pitch oscillation, and conversely, the oscillation of the axes of the flexible joint 5 and the clamp head 3 in a second plane can be referred to as yaw oscillation. In one embodiment, the oscillation of the axis of the flexible joint 5 in two mutually perpendicular planes can be performed independently, that is, during the same time period, the axis of the flexible joint only undergoes pitch oscillation or only undergoes yaw oscillation. In an alternative embodiment, the oscillation of the axis of the flexible joint 5 in two mutually perpendicular planes can be performed simultaneously, that is, during the same time period, the axis of the flexible joint simultaneously undergoes pitch oscillation and yaw oscillation.

[0183] In one illustrative embodiment, the second swing cable 1221 is wound multiple times around the first drive wheel 128.

[0184] According to an embodiment of this disclosure, the middle part of the second swing cable 1221 is fixed on the first drive wheel 128, so that the second swing cable 1221 follows the rotation of the first drive wheel 128 to tighten one end and loosen the other end, so that the flexible joint bends.

[0185] In one illustrative embodiment, such as Figure 5 As shown, there are 5 fourth guide wheels 118.

[0186] According to embodiments of this disclosure, such as Figure 20 and Figure 23 As shown, the rotating mechanism 126 includes a base 1261, a hollow shaft 1262, and an extension 1263. The hollow shaft 1262 is mounted on the first side of the base 1261. Figure 23 The second drive wheel 129 is mounted on the hollow shaft 1262 (on the upper side of the base 1261). The extension 1263 extends obliquely from the second side of the base 1261 opposite to the first side, relative to the axis of the hollow shaft 1262, to increase the torque of the main handle 121 driving the rotating mechanism 126 and to provide the operator with a better operating feel. The first drive wheel 128 is mounted on the free end of the extension 1263, and the fifth guide wheel 1222 is rotatably mounted in the base 1261 via a pivot 1264 to guide the first swing cable 1220 into the hollow shaft 1262.

[0187] According to the embodiments of the present disclosure, in actual operation, the main body of the pliers can be fixed by the same operator or another operator, and the operator can rotate the main handle relative to the main body or swing the main handle relative to the main body (or the rotating mechanism) to realize the swinging of the pliers head in two mutually perpendicular first and second planes. In this way, the swinging of the pliers head in the two mutually perpendicular first and second planes is achieved by operating the main handle, which simplifies the structure of the grip and facilitates the operation of the main handle.

[0188] According to embodiments of this disclosure, such as Figure 2 , Figure 5 and Figure 6 As shown, the main body 11 also includes an upper connecting box and a lower connecting box that are joined together. The portion of the rotating mechanism 126 extending out of the main body 11 is disposed within the cavity formed by the upper and lower connecting boxes. The first drive wheel 128 is mounted in the extension 1263 of the rotating mechanism 126 via a swing pivot 127. The main handle 121 can rotate around the swing pivot 127 to drive the first drive wheel 128 to rotate. The first drive wheel 128 drives the second swing cable 1221 to deflect the flexible joint 6 in the second plane.

[0189] In one illustrative embodiment, the number of fifth guide wheels is two.

[0190] According to embodiments of this disclosure, the swing pivot 127 is a non-circular bearing, such as any of polygonal, D-shaped, elliptical, etc.

[0191] In one illustrative embodiment, such as Figure 20 and Figure 23 As shown, the swing pivot 127 is a D-type axis.

[0192] According to embodiments of this disclosure, such as Figure 18 , Figure 21 and Figure 23 As shown, the second drive wheel 129 is mounted on the end of the hollow shaft 1262 to rotate with the hollow shaft. Specifically, the continuous-fire clamp also includes two bearings 1291. The second drive wheel 129 is mounted on the hollow shaft 1262 of the rotating mechanism 126 and is clamped between the two bearings 1291. The two bearings 1291 are placed in the first bearing groove 1115 in the main body 11 and rotatably support the hollow shaft 1262.

[0193] According to embodiments of this disclosure, such as Figure 18 , Figure 21 and Figure 23 As shown, the transmission mechanism also includes a roller 1210. The roller 1210 is mounted on the hollow shaft 1262 of the rotating mechanism 126 within the main body 11 and is disposed within a second bearing groove 1116 located between the second drive wheel 129 and the vertical wall of the main body 11, thus fixing the second drive wheel 129 axially relative to the hollow shaft 1262. Furthermore, a thrust bearing is disposed within the second bearing groove 1116. The roller 1210 is mounted on the hollow shaft 1262 and contacts the thrust bearing, preventing the second drive wheel 129 from moving axially while reducing the friction between the rotating mechanism 126 and the second bearing groove 1116 during rotation.

[0194] Figure 24 A perspective view of a flexible joint according to an embodiment of the present disclosure is shown schematically.

[0195] According to embodiments of this disclosure, such as Figure 1 and Figure 24As shown, the flexible joint 6 includes a starting joint 61, an ending joint 62, and multiple intermediate joints 63. The ending joint 62 is attached to the protective tube 5. The first swing cable 1220 and the second swing cable 1221 of the transmission mechanism are connected to the starting joint 61 at mutually perpendicular positions in the first and second radial directions. The ending joint 62 is mounted at the front end of the connecting tube 4. Multiple intermediate joints 63 are sequentially connected between the starting joint 61 and the ending joint 62, allowing the flexible joint 6 to swing in two mutually perpendicular planes. The first swing cable 1220 and the second swing cable 1221 extend from the starting joint 61 through the intermediate joints 63 and the ending joint 62 and through the connecting tube 4 to the grip portion. The push-clamp shaft 22 and the hollow shaft 23 both pass through the flexible joint 6.

[0196] According to embodiments of this disclosure, such as Figure 24 As shown, in order to enable the flexible joint 6 to deflect better, the flexible joint 6 also includes multiple auxiliary cables 64, which are spaced apart between the first swing cable 1220 and the second swing cable 1221. The auxiliary cables 64 pass through the starting joint 61, the intermediate joint 63 and connect to the ending joint 62.

[0197] According to an embodiment of this disclosure, the auxiliary cable 64 is fixedly connected to the end joint 62, and the auxiliary cable 64 is not fixedly connected to the start joint 61.

[0198] In one illustrative embodiment, the flexible joint 6 includes four auxiliary cables 64.

[0199] In one illustrative embodiment, the flexible joint 6 includes three intermediate joints 63.

[0200] According to embodiments of this disclosure, such as Figure 24 As shown, the protective tube 5 and the flexible joint 6 are connected by a rotating bearing 7, and the front ends of the hollow shaft 23 and the push-clamp shaft 22 pass through the hollow cylinder 66 and connect to the joint. Figure 12 As shown, the rear end of the protective tube 5 has a circular groove 53, and the rotating bearing 7 is fitted into the circular groove 53. The starting joint 61 extends forward along the axial direction to form a hollow cylinder 66, which is fitted into the rotating bearing 7, so that the protective tube 5 and the starting joint 61 are rotatably connected, thereby allowing the clamp head 3 and the protective tube 5 to rotate relative to the starting joint 61 around the axis of the ending joint 62.

[0201] According to embodiments of this disclosure, such as Figure 5As shown, the rotation axes of the first drive wheel 128, the second guide wheel 116, the third guide wheel 117, the fourth guide wheel 118, and the fifth guide wheel 1222 are perpendicular to the rotation axes of the hollow shaft 1262, the second drive wheel 129, and the first guide wheel 115. During a continuous-fire clamping procedure using this embodiment of the present disclosure, if it is necessary to change the angle of the clamp head according to the requirements of the surgical site or the operator's surgical posture, the operator can rotate the handwheel 1215 with their thumb while holding the handle. The handwheel 1215 drives the push clamp shaft 22 to rotate, which in turn drives the push clamp mechanism and the connecting part 21 to rotate. The connecting part 21 causes the clamp head to rotate relative to the end joint 62, and then rotates relative to the connecting tube, finally rotating the clamp head to a position suitable for surgical operation.

[0202] According to embodiments of this disclosure, such as Figure 11 As shown, the connecting tube 4 includes an outer rod and a hollow inner tube. The outer rod is a thin-walled hollow tube with multiple evenly spaced elongated slots at its front end. The rear end of the flexible joint 6's end joint 62 extends rearward with multiple bosses 65, which are inserted into the multiple elongated slots of the outer rod and tightly fitted together. The hollow inner rod is nested inside the outer rod.

[0203] In one illustrative embodiment, the number of long slots may include any one of 2, 4, 6, 8, etc.

[0204] According to an embodiment of this disclosure, the protective tube 5 is connected to the starting joint 61 of the flexible joint 6 via a rotating bearing 7. The ending joint 62 of the flexible joint 6 is connected to the outer rod. The rear end of the outer rod is connected to the main body 11. The operating handle 12 is connected to the main body 11. The operating handle 12 can rotate and swing. The rotation or swing of the operating handle 12 causes the flexible joint 6 to bend in different directions.

[0205] According to the embodiments of the present disclosure, in actual operation, the main body of the pliers can be fixed by the same operator or another operator, and the operator can rotate the main handle relative to the main body or swing the main handle relative to the main body (or the rotating mechanism) to realize the swinging of the pliers head in two mutually perpendicular first and second planes. In this way, the swinging of the pliers head in the two mutually perpendicular first and second planes is achieved by operating the main handle, which simplifies the structure of the grip and facilitates the operation of the main handle.

[0206] According to embodiments of this disclosure, by providing an elastic mechanism and a hollow tube 23, the length of the protective tube 5 can be shortened, thereby improving the control accuracy of the clamp head.

[0207] According to embodiments of this disclosure, during operation, the jaws 3 of the pliers first place a first clamp, and multiple compressed second clamps 35 are placed in the clamping chamber. The push shaft 22 will... Figure 10 Location. In this situation, tighten the main handle 12 and the auxiliary handle 13, and push the clamping shaft 22 backward. Figure 10 The push clamp mechanism 34 moves backward, moving from left to right, which in turn moves the connecting part 2 backward. With the first blocking protrusion 221 of the push clamp shaft 22 abutting against the bottom 212 of the connecting part 21, the push clamp shaft moves backward through the first blocking protrusion 221 and the bottom of the connecting part 21. The connecting arm 211 of the connecting part 21 drives the clamp arm 32 to rotate relative to the first pivot 36, causing the clamps to close and clamp the first clamp provided in the clamping part 321 of the clamps. During the backward movement of the push clamp mechanism 34 with the push clamp shaft 22, the partition plate 341 of the push clamp mechanism 34 touches the next second clamp 35 (…). Figure 10 When the second clamp 35 located on the right side is engaged, it will move upward due to the elasticity of the cantilever 343 itself. The force restricting the backward movement of the second clamp 35 by the rear wall 3342 of the positioning groove 334 in the half-body 33 is greater than the frictional force of the separator 341 on the second clamp 35, so it remains stationary and will not disengage from the positioning groove 334 and move backward with the push clamping mechanism 34. In this way, the rear end of the second clamp 35 disengages from the base 342 of the push clamping mechanism 34.

[0208] After the pliers close, release the auxiliary handle 12. The push clamp shaft 22 will move forward under the elastic force of the first elastic element 112. The moving length is equal to the sum of the distance between the two adjacent second clamps 35 and the length required for the pliers to open.

[0209] In the first moving phase, the pusher shaft 22 moves forward ( Figure 10 When the middle moves from right to left, it drives the push clamp mechanism 34 to move forward. At the same time, the hollow shaft 23 moves forward under the action of the second elastic element 113 and pushes the clamp to open through the connecting part 21.

[0210] During the first moving phase, as the push clamp mechanism 34 moves forward, because the cantilever 343 is still in an elastic deformation state, the frictional force between the push clamp mechanism 34 and the protrusion 352 of the next second clamp 35 it contacts is less than the force of the positioning groove 334 in the half-body 33 that restricts the forward movement of the next second clamp 35. Therefore, the next second clamp 35 in the clamping compartment remains stationary. As the push clamp mechanism 34 continues to move towards the clamp, the separator 341 of the push clamp mechanism 34 gradually moves between the two second clamps and abuts against the previous second clamp. Figure 10 The second clamp 35 is located at the rear of the left side, while the base groove 3421 abuts against the rear of the next second clamp 35 inside the clamping compartment. That is to say, during the first movement phase, neither of the two second clamps moves.

[0211] Then, in the second moving phase, the separator 341 of the push clamp mechanism 34 continues to apply a pushing force to the previous second clamp. When the pushing force of the separator 341 of the push clamp mechanism 34 pushing the previous second clamp forward is greater than the frictional force between the protrusion 352 of the previous second clamp 35 and the positioning groove 334 of the connecting part, the protrusion of the previous second clamp 35 disengages from the positioning groove 334 and moves forward together with the push clamp shaft 22 until it moves to the front end of the clamp and enters the clamping part 321. During this process, in the two adjacent second clamps 35, the latter second clamp 35 will move to the position previously occupied by the former second clamp 35 under the drive of the base.

[0212] According to embodiments of this disclosure, when the multi-degree-of-freedom repeating clamp head 3 is in use, the main handle 121 can swing around the swing pivot 127. The main handle 121 drives the first drive wheel 128 to rotate, thereby driving the flexible joint 6 to deflect via the second swing cable 1221, achieving the swinging of the clamp in a second plane. The rotating mechanism 126 can rotate around the hollow shaft 1262. The hollow shaft 1262 drives the second drive wheel 129 to rotate, thereby driving the flexible joint 6 via the first swing cable 1220, achieving the swinging of the clamp in a first plane. While operating the handle 12 to rotate and / or swing, the operator can also drive the rotating wheel 114 to rotate via the handwheel 1215, thereby driving the push clamp shaft 22 to rotate, thus achieving the rotation of the clamp relative to the flexible joint 6.

[0213] The continuous-fire clamps disclosed herein, by setting a multi-degree-of-freedom structure, allow the clamps to swing in the first plane and the second plane and rotate relative to the main body, thereby obtaining a larger operating space and making the operation more flexible.

[0214] It should be noted that structures with multiple degrees of autonomy can also be used in other surgical instruments.

[0215] The embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. It should be noted that implementations not illustrated or described in the drawings or the main text of the specification are forms known to those skilled in the art and are not described in detail. Furthermore, the definitions of the various elements and methods described above are not limited to the specific structures, shapes, or methods mentioned in the embodiments, and those skilled in the art can easily modify or substitute them.

[0216] Based on the above description, those skilled in the art should have a clear understanding of the continuous-fire clamp provided in this disclosure.

[0217] In summary, this disclosure provides a continuous clamping clamp that enables continuous clamping of ligation clamps and combines the movement of the second clamp within the clamp chamber with the opening and closing motion of the clamps, thereby reducing the operation time for the clamping personnel.

[0218] It should also be noted that the directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," and "right," are only for reference to the directions in the accompanying drawings and are not intended to limit the scope of protection of this disclosure. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted where they may cause confusion in understanding this disclosure, and the shapes and dimensions of the components in the drawings do not reflect actual size and proportion, but are only schematic representations of the embodiments of this disclosure.

[0219] Unless otherwise stated, the numerical parameters in this specification and the appended claims are approximate values ​​and can be varied according to desired characteristics derived from the content of this disclosure. Specifically, all figures used in the specification and claims to indicate composition, reaction conditions, etc., should be understood to be modified by the term "about" in all cases. Generally, this means that a specific amount varies by ±10% in some embodiments, ±5% in some embodiments, ±1% in some embodiments, and ±0.5% in some embodiments.

[0220] The use of ordinal numbers such as "first," "second," "third," etc., in the specification and claims to modify the corresponding elements does not imply that the element has any ordinal number, nor does it represent the order of one element with another element, or the order of manufacturing methods. The use of these ordinal numbers is only to enable a named element to be clearly distinguished from another element with the same name.

[0221] Furthermore, unless specifically described or required to occur in a specific order, the order of the above steps is not limited to those listed above and can be varied or rearranged according to the desired design. Moreover, the above embodiments can be used in combination with each other or with other embodiments based on design and reliability considerations; that is, technical features from different embodiments can be freely combined to form more embodiments.

[0222] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of this disclosure. It should be understood that the above are only specific embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A rapid-fire clamp, comprising: Handle section; The drive mechanism is installed inside the grip section; A connecting tube, the rear end of which is connected to the grip portion; The clamp head is installed at the front end of the connecting pipe; as well as The connecting part includes: a push-clamp shaft, which extends from the grip part through the connecting tube and connects to the pliers head. The push-clamp shaft is configured to drive the pliers head to fire and clamp multiple clamps under the drive of the drive mechanism, and to drive the pliers head to rotate relative to the connecting tube. The clamp head includes: A protective tube, the rear end of which is rotatably connected to the front end of the connecting tube; The pliers are configured to clamp the first clamp; A clamping compartment is configured to extend from the outside of the front end of the protective tube through the space defined by the clamps to the inside of the protective tube, wherein a plurality of clamps are movably and sequentially accommodated within a receiving channel defined by the clamping compartment; and A push-clamp mechanism is disposed inside the connecting tube and is configured to push the clamps toward the clamping compartment in sequence under the drive of the joint. The joint also includes: The U-shaped connecting part has two connecting arms that respectively engage with the rear part of the clamp arms to drive the clamps to open or close; and A hollow shaft is slidably fitted outside the push clamp shaft and inside the connecting tube. The end of the hollow shaft abuts against the bottom of the connecting part on the side opposite to the push clamp mechanism, so as to push the connecting part forward and open the clamp.

2. The rapid-fire clamp according to claim 1, wherein, The grip portion includes: The main body portion, wherein an accommodating space is formed within the main body portion; and The operating handle is connected to the main body. The drive mechanism includes a handwheel, which is rotatably mounted on the operating handle. The rotation of the handwheel drives the push clamp shaft to rotate via a transmission mechanism.

3. The rapid-fire clamp according to claim 2, wherein, The rear end of the push-clamp shaft is formed as a drive section, and the outer surface of the drive section has at least one flat surface. The transmission mechanism includes: The support frame is disposed within the receiving space of the main body; A rotating wheel is rotatably mounted on the support frame. The drive section of the push clamp shaft passes through the rotating wheel, causing the push clamp shaft to rotate under the drive of the rotating wheel to drive the protective tube and the clamp head to rotate relative to the connecting tube, and allowing the push clamp shaft to reciprocate linearly in the axial direction relative to the rotating wheel. A ring cable is sleeved on the rotating wheel and the handwheel, so that the handwheel drives the rotating wheel to rotate through the ring cable.

4. The rapid-fire clamp according to claim 3, wherein, The transmission mechanism also includes two first conduits, the two ends of which are respectively connected to the main body and the operating handle, and the loop cable passes through the two first conduits.

5. The rapid-fire clamp according to claim 2, wherein, The operating handle includes: The main handle is mounted on the main body, and the main handle has a receiving chamber inside; and A mounting part is installed on the main handle, and the handwheel is rotatably mounted on the mounting part; and An auxiliary handle is pivotally mounted on the main handle via a handle pivot. The drive mechanism also includes A movable part, movably installed in the receiving chamber; and A connecting rod, the two ends of which are pivotally connected to the moving part and the portion of the auxiliary handle away from the handle pivot, respectively, such that the movement of the auxiliary handle relative to the main handle drives the moving part to reciprocate linearly within the receiving chamber via the connecting rod; A second conduit is connected between the main body and the mounting portion; and A tension cable is provided, which passes through the second conduit and the rotating shaft of the handwheel, and both ends of the tension cable are respectively connected to the rear end of the moving part and the push clamp shaft.

6. The rapid-fire clamp according to claim 2, wherein, Also includes: The first elastic element is configured such that the push clamp shaft uses the elastic force of the first elastic element to push the connecting part forward; as well as The second elastic element is configured such that the hollow shaft uses the elastic force of the second elastic element to push the connecting part forward.

7. The rapid-fire clamp according to claim 6, wherein, The second ends of both the hollow shaft and the push-clamp shaft extend through the connecting pipe into the receiving space of the main body, and the push-clamp shaft extends from the second end of the hollow shaft. The bottom of the accommodating space is provided with a first slot and a second slot. The first elastic element is at least partially accommodated in the first slot, and a first end of the first elastic element abuts against a blocking protrusion formed on the push clamp shaft, and a second end of the first elastic element abuts against the end of the first slot, such that the push clamp shaft moves backward against the elastic force of the first elastic element. The second elastic element is at least partially accommodated in the second slot and sleeved on the portion of the hollow shaft that extends out of the push-clamp shaft. The first end of the second elastic element abuts against the second end of the hollow shaft, and the second end of the second elastic element abuts against the end of the second slot, causing the hollow shaft to move backward against the elastic force of the second elastic element.

8. The rapid-fire clamp according to any one of claims 1-7, wherein, The push-clamp mechanism includes: The base is configured to reciprocate linearly under the drive of the joint, and the rear end of the second clip located on the rearmost side abuts against the base; A cantilever, detachably mounted on the base and extending forward from the base; and At least one divider extends obliquely from the cantilever between two adjacent clamps and is configured to push the front clamp of the two clamps toward the clamp compartment.

Images