Clip applier

Abstract

The utility model discloses a clip applier, which comprises a clip head group (1), a clip rod (3), a turntable (4), a handle (5) and a swinging joint (2), the swinging joint (2) is positioned between the clip head group (1) and the clip rod (3), and the clip rod (3) comprises a first inner core (32) and a second inner core (33); the far end of the swing joint (2) is movably connected with the first forceps head (11) and the second forceps head (12) through forceps head pins (13), and the near end of the swing joint (2) is movably connected with the first inner core (32) and the second inner core (33) through joint pins (21). A first arc-shaped groove (321) is formed in the far end of the first inner core (32), and a second arc-shaped groove (331) is formed in the far end of the second inner core (33); the first swing pin (22) penetrates through the swing joint (2) and enters the first arc-shaped groove (321); a second swinging pin (23) penetrates through the swinging joint (2) and enters a second arc-shaped groove (331); when the swing joint (2) swings, the first swing pin (22) and the second swing pin (23) swing in the first arc-shaped groove (321) and the second arc-shaped groove (331) in a reciprocating mode respectively so as to drive the tong head set (1) to bend. According to the clip applier, the jaw can accurately face a blood vessel needing to be closed by adjusting the angle between the clip head and the clip rod, and the phenomenon of bleeding or dropping of the closing clip is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a surgical instrument clip applier. Background Art

[0002] Clip appliers are a type of surgical instrument commonly used in existing medical treatments. They are mainly used to clamp blood vessels in minimally invasive surgery to achieve blood vessel closure. The best closure effect can be achieved when the blood vessel and the clamp are at a vertical angle. Otherwise, bleeding or the clamp falling off is very likely to occur.

[0003] Although the clamp head and the clamp rod of the existing clamp applier can rotate 360° around the central axis of the clamp rod, the position of the clamp head and the clamp rod is fixed, and the clamp head and the clamp rod are located in the same straight line or at a fixed angle. For the complex blood vessels in the human body, the existing clamp applier cannot accurately align the jaws with the blood vessels to be closed, and forced closure cannot achieve satisfactory results. For some blood vessels that are relatively hidden in the wound, the jaws of the existing clamp applier cannot even reach the blood vessels to be closed, and the wound needs to be reopened, which increases the patient's pain and healing time.

[0004] How to solve the technical problem in the prior art that the clip applier cannot be aligned or even cannot touch the blood vessel to be closed during use is a technical problem that urgently needs to be solved. Utility Model Content

[0005] The utility model aims to solve the technical problem that the clamps in the prior art cannot be aligned or even cannot touch the blood vessels to be closed during use.

[0006] In order to solve the above technical problems, the technical solutions provided by the utility model are as follows:

[0007] A clamping forceps, comprising a clamp head group (1), a clamp rod (3), a rotating disk (4) and a handle (5), wherein the clamp head group (1) comprises a first clamp head (11) and a second clamp head (12), the clamp rod (3) comprises a closing pull tab (34), the clamp head group (1) is connected to the handle (5) via the clamp rod (3) and the rotating disk (4), and the handle (5) controls the opening and closing of the first clamp head (11) and the second clamp head (12) via the rotating disk (4) and the closing pull tab (34) of the clamp rod (3), characterized in that the clamping forceps also comprises a swing joint (2),

[0008] The swing joint (2) is located between the pliers head assembly (1) and the pliers rod (3), and the pliers rod (3) comprises a first inner core (32) and a second inner core (33);

[0009] The distal end of the swing joint (2) is movably connected to the first clamp head (11) and the second clamp head (12) via a clamp head pin (13), and the proximal end of the swing joint (2) is movably connected to the first inner core (32) and the second inner core (33) via a joint pin (21);

[0010] A first arc-shaped groove (321) is provided at the distal end of the first inner core (32), and a second arc-shaped groove (331) is provided at the distal end of the second inner core (33);

[0011] The first swing pin (22) passes through the swing joint (2) and enters the first arc-shaped groove (321);

[0012] The second swing pin (23) passes through the swing joint (2) and enters the second arc-shaped groove (331);

[0013] When the swing joint (2) swings, the first swing pin (22) and the second swing pin (23) swing back and forth in the first arc groove (321) and the second arc groove (331) respectively, thereby driving the clamp head assembly 1 to bend.

[0014] Further, the first inner core (32) is provided with a first swing pull tab (36), the second inner core (33) is provided with a second swing pull tab (37), the first swing pull tab (36) is provided with a first long hole (361) at a distal end, the second swing pull tab (37) is provided with a second long hole (371) at a distal end, the first swing pin (22) passes through the first arc-shaped groove (321) and the first long hole (361) in sequence, and the second swing pin (23) passes through the second arc-shaped groove (331) and the second long hole (371) in sequence;

[0015] When the first swing pull tab (36) moves toward the proximal direction, it drives the first swing pin (22) to rotate along the track of the first arc groove (321), and the second swing pull tab (37) moves toward the distal direction, driving the second swing pin (23) to rotate along the track of the second arc groove (331), so that the swing joint (2) is bent;

[0016] When the first swing pull tab (36) moves toward the distal direction, it drives the first swing pin (22) to rotate along the track of the first arc groove (321), and the second swing pull tab (37) moves toward the proximal direction, driving the second swing pin (23) to rotate along the track of the second arc groove (331), so that the swing joint (2) is bent;

[0017] When the second swing pull tab (37) moves toward the proximal direction, it drives the second swing pin (23) to rotate along the track of the second arc groove (331), and the first swing pull tab (36) moves toward the distal direction, driving the first swing pin (22) to rotate along the track of the first arc groove (321), so that the swing joint (2) is bent;

[0018] When the second swing pull tab (37) moves toward the distal direction, it drives the second swing pin (23) to rotate along the track of the second arc groove (331), and the first swing pull tab (36) moves toward the proximal direction, driving the first swing pin (22) to rotate along the track of the first arc groove (321), so that the swing joint (2) bends.

[0019] Furthermore, the first arc-shaped groove (321) and the second arc-shaped groove (331) are concentric circles, and the first swing pin (22) assembled in the first arc-shaped groove (321) and the second swing pin (23) assembled in the second arc-shaped groove (331) can both rotate around the joint pin (21).

[0020] Furthermore, the rotating disk (4) is provided with a first swing arm (43) and a second swing arm (44); the first swing arm (43) is provided with a first connecting block (434), and the second swing arm (44) is provided with a second connecting block (444);

[0021] One end of the first connecting block (434) is connected to the proximal end of the first swing pull tab (36), and the other end of the first connecting block (434) is connected to the first swing arm hole (432) on the first swing arm (43);

[0022] One end of the second connecting block (444) is connected to the proximal end of the second swing pull tab (37), and the other end of the second connecting block (444) is connected to the second swing arm hole (442) on the second swing arm (44);

[0023] One end of the first swing arm (43) is fixed to the turntable housing (401) of the turntable (4) via a first pin shaft (404);

[0024] One end of the second swing arm (44) is fixed to the turntable housing (401) of the turntable (4) via a second pin shaft (405);

[0025] When the first swing arm (43) swings around the first pin shaft (404), it drives the first swing pull tab (36) to move back and forth;

[0026] When the second swing arm (44) swings around the second pin shaft (405), it drives the second swing pull tab (37) to move back and forth.

[0027] Furthermore, the rotating disk (4) is provided with a first swing button (41) and a second swing button (42), and the rotating disk (4) is also provided with a chuck (47);

[0028] The first swing button (41) is fixed to the end of the first swing arm (43);

[0029] The second swing button (42) is fixed to the end of the second swing arm (44);

[0030] The first swing button (41) is provided with a first swing button sliding tooth (411);

[0031] The second swing button (42) is provided with a second swing button sliding tooth (421);

[0032] The first swing button sliding tooth (411) and the second swing button sliding tooth (421) are respectively engaged with a first engaging tooth piece (471) and a second engaging tooth piece (472) on the chuck (47).

[0033] Furthermore, a turntable housing (401) of the turntable (4) is provided with a turntable housing slideway (403) in which the first swing button (41) and the second swing button (42) can move;

[0034] The closing pull tab (34) is connected to the shaft (46) at one end close to the rotating disk (4) through a connecting pin (461). The chuck (47) is provided with a clutch shaft (48). A compression spring (49) is installed on the clutch shaft (48). The elastic force of the compression spring (49) makes the clutch shaft (48) tightly contact with the inside of the chuck (47).

[0035] Furthermore, the clip applier also includes a swing safety (6), and the swing safety (6) is provided with a safety slider (61) and a safety dial button (62);

[0036] The safety slider (61) and the safety dial button (62) are respectively fixed on a handle fixing frame (511) of the handle (5);

[0037] The safety button (62) is fixed to the handle fixing frame (511) via a safety pin shaft (601);

[0038] The safety button (62) is provided with a pin (621) which is inserted into the safety slide block long hole (613) of the safety slide block (61);

[0039] When the safety button (62) is pressed, the safety button (62) rotates around the safety pin shaft (601), and the pin (621) pushes the safety slider (61) to move toward the safety button (62) through the safety slider slot (613).

[0040] Furthermore, the safety slider (61) drives the clutch shaft (48) to move toward the safety button (62), so that the clutch shaft (48) is disengaged from the inside of the chuck (47), and the compression spring (49) is compressed at the same time;

[0041] When the first swing button (41) is pressed, the first swing button sliding tooth (411) moves toward the chuck (47), and the first swing button sliding tooth (411) pushes the first clamping tooth piece (471) to tilt toward the center of the chuck (47);

[0042] When the first swing button (41) moves toward the chuck (47), it drives the first swing arm (43) to swing toward the chuck (47) with the first pin shaft (404) as the center, and the first swing arm (43) drives the first connecting block (434) to move toward the chuck (47), thereby driving the first swing pull tab (36) to move toward the turntable (4).

[0043] Furthermore, when the safety button (62) is released, under the elastic force of the compression spring (49), the clutch shaft (48) and the safety slider (61) are reset, and the clutch shaft (48) re-enters the interior of the chuck (47); the swing joint (2) swinging toward the side of the first swing pull tab (36) is locked.

[0044] After adopting such a design, the utility model has at least the following advantages:

[0045] (1) The clamp applier designed in the utility model can adjust the angle between the clamp head and the clamp rod so that the jaws are accurately oriented toward the blood vessel to be closed, thereby preventing bleeding or the closing clamp from falling off.

[0046] (2) The utility model has a simple structure, good effect, low cost and easy process implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0048] Figure 1 It is a schematic diagram of the overall view of the clip applier according to one embodiment of the utility model;

[0049] Figure 2 This is an assembly diagram of the pliers head after the swing joint is removed according to an embodiment of the utility model;

[0050] Figure 3 This is a clamp head assembly diagram after the second clamp head is removed according to an embodiment of the utility model;

[0051] Figure 4 This is a clamp head assembly diagram after the first clamp head is removed according to an embodiment of the utility model;

[0052] Figure 5 This is a diagram of the opening and closing of the pliers head in one embodiment of the utility model;

[0053] Figure 6 This is a schematic diagram of an embodiment of the utility model in which the closure clip is perpendicular to the blood vessel and closes the blood vessel;

[0054] Figure 7 This is a schematic diagram of the swing joint connection viewed from the first inner core side in one embodiment of the utility model;

[0055] Figure 8 This is a diagram showing the assembly positions of the joint pin and the swing pin as viewed from the second inner core side in one embodiment of the utility model;

[0056] Fig. 9 This is a diagram of the assembly position of the swing pull tab and the swing pin in one embodiment of the utility model;

[0057] Fig.10 This is an internal assembly diagram of an embodiment of the utility model after removing the turntable housing;

[0058] Fig.11 This is an exploded view of a turntable according to an embodiment of the utility model;

[0059] Fig.12 This is a diagram of the internal structure of a turntable according to an embodiment of the utility model;

[0060] Fig.13 This is a cross-sectional view of a handle and a swing safety according to an embodiment of the utility model;

[0061] Fig.14 This is a structural diagram of a swing insurance according to an embodiment of the utility model;

[0062] Fig.15 This is a diagram showing the movement position of the safety slider after the safety dial button is pressed in one embodiment of the utility model;

[0063] Fig.16 This is a diagram of the internal structure of the turntable after the first swing button of an embodiment of the utility model is pressed;

[0064] Fig.17 This is a cross-sectional view of the elastic deformation of the tooth piece of an embodiment of the utility model;

[0065] Fig.18 It is a schematic diagram of an embodiment of the utility model in which the clamp head is swung toward the first swing pull tab;

[0066] Fig.19 This is a cross-sectional view of the locking of the latching tooth piece and the sliding tooth of the swing button according to an embodiment of the utility model;

[0067] Reference numerals,

[0068] 1-clamp head group; 11-first clamp head; 110-first limiting surface; 111-first clamp head closing groove; 12-second clamp head; 120-second limiting surface; 121-second clamp head closing groove; 13-clamp head pin; 14-clamp head torsion spring; 141-first torsion arm; 142-second torsion arm; 15-closing clamp; 2-swing joint; 201-square hole; 21-joint pin; 22-first swing pin; 23-second swing pin; 3-clamp rod; 31-clamp rod outer tube; 32-first inner core; 321-first arc groove; 322-first inner core Groove; 33-second inner core; 331-second arc groove; 332-second inner core groove; 34-closed pull tab; 341-closed pull tab side; 35-closed pull tab pin; 36-first swing pull tab; 361-first long hole; 362-third long hole; 37-second swing pull tab; 371-second long hole; 372-fourth long hole; 38-narrow long groove; 4-turntable; 401-turntable shell; 402-turntable shell protrusion; 403-turntable shell slide; 404-first pin shaft; 405-second pin shaft; 41-first swing button; 4 11-first swing button sliding tooth; 42-second swing button; 421-second swing button sliding tooth; 43-first swing arm; 431-first swing arm hole A; 432-first swing arm hole B; 433-first swing arm hole C; 434-first connecting block; 44-second swing arm; 441-second swing arm hole A; 442-second swing arm hole B; 443-second swing arm hole C; 444-second connecting block; 46-axis; 461-connecting pin; 462-groove; 47-chuck; 471-first clamping tooth piece; 472-second clamping tooth piece; 473-special-shaped Hole; 48-clutch shaft; 481-raised shoulder; 49-compression spring; 5-handle; 51-fixed handle; 511-fixed handle fixing frame; 512-fixed frame inner hole; 52-movable handle; 521-movable handle pushing end; 53-handle pin; 54-first spring sheet; 541-fixed pin; 55-second spring sheet; 6-swing insurance; 601-insurance pin; 61-insurance slider; 611-insurance slider opening slot; 612-insurance slider long hole A; 613-insurance slider long hole B; 62-insurance dial button; 621-insurance pin; DETAILED DESCRIPTION

[0069] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0070] In this document, “upper”, “lower”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0071] The end of each component close to the operator is defined as the proximal end, and the end away from the operator is defined as the distal end. The expressions of the proximal end and the distal end are only used to make the description simple and clear, and should not be understood as any limitation of the present invention.

[0072] like Figure 1-19 As shown, an embodiment of the utility model provides a clamping forceps including a clamp head 1, a clamp rod 3, a turntable 4, and a handle 5. The clamp head group 1 includes a first clamp head 11 and a second clamp head 12. The clamp rod 3 includes a closing pull tab 34. The clamp head group 1 is connected to the handle 5 through the clamp rod 3 and the turntable 4. The handle 5 controls the opening and closing of the first clamp head 11 and the second clamp head 12 through the turntable 4 and the clamp rod 3. The clamping forceps also includes a swing joint 2.

[0073] The swing joint 2 is located between the clamp head assembly 1 and the clamp rod 3, and the clamp rod 3 includes a first inner core 32 and a second inner core 33;

[0074] The distal end of the swing joint 2 is movably connected to the first clamp head 11 and the second clamp head 12 through the clamp head pin 13, and the proximal end of the swing joint 2 is movably connected to the first inner core 32 and the second inner core 33 through the joint pin 21;

[0075] A first arc-shaped groove 321 is provided at the distal end of the first inner core 32, and a second arc-shaped groove 331 is provided at the distal end of the second inner core 33;

[0076] The first swing pin 22 passes through the swing joint 2 and enters the first arc-shaped groove 321;

[0077] The second swing pin 23 passes through the swing joint 2 and enters the second arc groove 331;

[0078] When the swing joint 2 swings, the first swing pin 22 and the second swing pin 23 swing back and forth in the first arc groove 321 and the second arc groove 331 respectively, thereby driving the clamp head assembly 1 to bend.

[0079] Specifically, there is a clamp torsion spring 14 with an inner circle passing through the clamp pin 13 between the first clamp head 11 and the second clamp head 12. The first torsion arm 141 and the second torsion arm 142 of the clamp torsion spring 14 apply torque to the first clamp head 11 and the second clamp head 12 respectively, so that they open an opening and clamp the closing clamp 15.

[0080] The first clamp head 11 has a first limiting surface 110, and the second clamp head 12 has a second limiting surface 120. During the opening process of the first clamp head 11 and the second clamp head 12, the first limiting surface 110 and the second limiting surface 120 contact the side surface 341 of the closed pull tab, and this is the maximum opening of the first clamp head 11 and the second clamp head 12.

[0081] The first clamp head 11 has a first clamp head closing groove 111 , and the second clamp head 12 has a second clamp head closing groove 121 . Closing pull-tab pins 35 are arranged in the first clamp head closing groove 111 and the second clamp head closing groove 121 .

[0082] A closing tab 34 passed by a closing tab pin 35 is disposed between the first clamp head 11 and the second clamp head 12 . The closing tab 34 moves away from the first clamp head 11 and the second clamp head 12 , driving the closing tab pin 35 to move in the same direction.

[0083] like Figure 5 , Figure 6 As shown, when the closing pull tab pin 35 moves, pressure is applied to the first clamp head closing groove 111 and the second clamp head closing groove 121, so that the first clamp head 11 and the second clamp head 12 rotate around the clamp head pin 13 until the opening is closed, the closing clamp 15 is clamped, and the blood vessel is closed.

[0084] Here, there is a square hole 201 at the connection between the two ends of the swing joint 2, in which the closing pull tab 34 can move.

[0085] The first inner core 32 is provided with a first swinging pull tab 36, the second inner core 33 is provided with a second swinging pull tab 37, the first swinging pull tab 36 is provided with a first long hole 361 at the far end, the second swinging pull tab 37 is provided with a second long hole 371 at the far end, the first swinging pin 22 passes through the first arc groove 321 and the first long hole 361 in sequence, and the second swinging pin 23 passes through the second arc groove 331 and the second long hole 371 in sequence;

[0086] When the first swing tab 36 moves toward the proximal direction, it drives the first swing pin 22 to rotate along the track of the first arc groove 321 with the joint pin 21 as the center, and the first swing pin 22 drives the swing joint 2 to rotate toward the side of the first swing tab 36 with the joint pin 21 as the center; at this time, when the second swing tab 37 moves toward the distal direction, it drives the second swing pin 23 to move along the track of the second arc groove 331 toward the distal direction, thereby realizing the swing of the swing joint 2 and the clamp head assembly 1.

[0087] When the first swing tab 36 moves toward the distal direction, it drives the first swing pin 22 to rotate along the track of the first arc groove 321 with the joint pin 21 as the center, and the first swing pin 22 drives the swing joint 2 to rotate with the joint pin 21 as the center toward the side away from the first swing tab 36; at this time, when the second swing tab 37 moves toward the proximal direction, it drives the second swing pin 23 to move along the track of the second arc groove 331 toward the proximal direction, thereby realizing the swing of the swing joint 2 and the clamp head assembly 1.

[0088] When the second swing tab 37 moves toward the proximal direction, it drives the second swing pin 23 to rotate along the track of the second arc groove 331 with the joint pin 21 as the center, and the second swing pin 23 drives the swing joint 2 to rotate toward the side of the second swing tab 37 with the joint pin 21 as the center; at this time, when the first swing tab 36 moves toward the distal direction, it drives the first swing pin 22 to move along the track of the first arc groove 321 toward the distal direction, thereby realizing the swing of the swing joint 2 and the clamp head assembly 1.

[0089] When the second swing tab 37 moves toward the distal direction, it drives the second swing pin 23 to rotate along the track of the second arc groove 331 with the joint pin 21 as the center, and the second swing pin 23 drives the swing joint 2 to rotate with the joint pin 21 as the center toward the side away from the second swing tab 37; at this time, when the first swing tab 36 moves toward the proximal direction, it drives the first swing pin 22 to move along the track of the first arc groove 321 toward the proximal direction, thereby realizing the swing of the swing joint 2 and the clamp head group 1.

[0090] The first inner core 32 and the second inner core 33 have narrow long grooves 38 for the closing pull tab 34 to move therein, and the first inner core 32 and the second inner core 33 have a clamp rod outer tube 31 wrapped therearound, one end of the clamp rod outer tube 31 is close to the swing joint 2, and the other end is close to the turntable 4.

[0091] Here, the first arc groove 321 and the second arc groove 331 are concentric circles, and the first swing pin 22 and the second swing pin 23 respectively assembled in the first arc groove 321 and the second arc groove 331 can both rotate around the joint pin 21 as the center.

[0092] like Fig.10 , Fig.11 , Fig.12 , Fig.13As shown, the turntable 4 is provided with a first swing arm 43 and a second swing arm 44, the first swing arm 43 is provided with a first connecting block 434, and the second swing arm 44 is provided with a second connecting block 444; one end of the first connecting block 434 is connected to the proximal end of the first swing pull tab 36, and the other end of the first connecting block 434 is connected to the first swing arm hole 432 on the first swing arm 43; one end of the second connecting block 444 is connected to the proximal end of the second swing pull tab 37, and the other end of the second connecting block 444 is connected to the second swing arm hole 442 on the second swing arm 44; one end of the first swing arm 43 is fixed to the turntable housing 401 through the first pin shaft 404; one end of the second swing arm 44 is fixed to the turntable housing 401 through the second pin shaft 405; when the first swing arm 43 swings around the first pin shaft 404 as the center, it drives the first swing pull tab 36 to move back and forth; when the second swing arm 44 swings around the second pin shaft 405 as the center, it drives the second swing pull tab 37 to move back and forth.

[0093] Specifically, there is a turntable shell protrusion 402 in the turntable shell 401, and the first inner core 32 and the second inner core 33 have a first inner core groove 322 and a second inner core groove 332 respectively near one end of the turntable 4. The turntable shell protrusion 402 is connected to the first inner core groove 322 and the second inner core groove 332, thereby connecting the turntable 4 and the clamp rod 3 together, and they can rotate together around the center line.

[0094] The turntable 4 is provided with a first swing button 41 and a second swing button 42, and the turntable 4 is also provided with a chuck 47; the first swing button 41 is fixed to the end of the first swing arm 43; the second swing button 42 is fixed to the end of the second swing arm 44; the first swing button 41 is provided with a first swing button sliding tooth 411; the second swing button 42 is provided with a second swing button sliding tooth 421; the first swing button sliding tooth 411 and the second swing button sliding tooth 421 are respectively engaged with the first clamping tooth piece 471 and the second clamping tooth piece 472 on the chuck 47.

[0095] Furthermore, the first swing pull tab 36 and the second swing pull tab 37 have a third long hole 362 and a fourth long hole 372 respectively at one end close to the turntable 4, and the third long hole 362 and the fourth long hole 372 are respectively connected to the first connecting block 434 and the second connecting block 444, and the first connecting block 434 and the second connecting block 444 are also respectively connected to the first swing arm hole 432 and the second swing arm hole 442.

[0096] The first swing arm hole 431 and the second swing arm hole 441 are connected to the first pin shaft 404 and the second pin shaft 405 respectively. The first pin shaft 404 and the second pin shaft 405 are assembled in the turntable housing 401.

[0097] The first swing arm 43 and the second swing arm 44 can swing back and forth around the first pin shaft 404 and the second pin shaft 405 respectively.

[0098] The first swing arm hole 433 and the second swing arm hole 443 are connected to the first swing button 41 and the second swing button 42 respectively.

[0099] A turntable housing slideway 403 is provided in the turntable housing 401 of the turntable 4, and the first swing button 41 and the second swing button 42 can move therein;

[0100] The closing pull tab 34 is connected to the shaft 46 at one end close to the turntable 4 through a connecting pin 461. The chuck 47 is provided with a clutch shaft 48, and a compression spring 49 is installed on the clutch shaft 48. The elastic force of the compression spring 49 makes the clutch shaft 48 tightly contact with the inside of the chuck 47.

[0101] The center of the chuck 47 is provided with a special-shaped hole 473 for the closing pull tab 34 and the shaft 46 to pass through, and the closing pull tab 34, the shaft 46 and the chuck 47 can rotate together around the center line.

[0102] like Fig.13 , Fig.14 As shown, the other end of the clutch shaft 48 has a raised shoulder 481, which is connected to the opening groove 611 of the safety slider. The clutch shaft 48 can rotate around the central axis together with the turntable 4.

[0103] The safety slider 61 is assembled on the fixed handle fixing frame 511 , and a safety dial button 62 is assembled on the outer side of the safety slider 61 . The safety pin shaft 601 passes through the long hole A612 of the safety slider to assemble the safety dial button 62 on the fixed handle fixing frame 511 .

[0104] The safety button 62 is provided with a pin 621 which is inserted into the long hole 613 of the safety slider.

[0105] One end of the shaft 46 away from the closing pull tab 34 is inserted into the inner hole 512 of the fixing frame, and the shaft 46 can reciprocate along the central axis and rotate around the central axis in the inner hole 512 of the fixing frame.

[0106] The shaft 46 has a groove 462 , and the movable handle pushing end 521 is assembled in the groove 462 .

[0107] The movable handle 52 and the fixed handle 51 are connected together through a handle pin 53 . When the movable handle 52 is closed, the movable handle 52 can rotate around the handle pin 53 .

[0108] The first spring sheet 54 and the second spring sheet 55 are respectively assembled to the fixed handle 51 and the movable handle 52 through the fixing pin 541. When the movable handle 52 is closed, the first spring sheet 54 and the second spring sheet 55 are squeezed and deformed against each other to generate elastic force. After the force applied to close the movable handle 52 is removed, the movable handle 52 returns to its initial position under the elastic force of the first spring sheet 54 and the second spring sheet 55.

[0109] like Fig.15As shown, the safety button 62 is pressed, and the safety button 62 rotates around the safety pin shaft 601 , and the pin 621 on the safety button 62 pushes the safety slider 61 to move toward the safety button 62 through the long hole B613 of the safety slider.

[0110] The safety slider 61 drives the clutch shaft 48 to move toward the safety dial button 62 , and the clutch shaft 48 is disengaged from the inside of the chuck 47 , and the compression spring 49 is compressed at the same time.

[0111] like Fig.16 , Fig.17 As shown, at this time, the first swing button 41 is pressed, and the first swing button sliding tooth 411 moves toward the chuck 47, and the first swing button sliding tooth 411 pushes the first engaging tooth piece 471 on the chuck to tilt toward the center of the chuck 47. When the first swing button sliding tooth 411 re-engages with the first engaging tooth piece 471, the first engaging tooth piece 471 is reset.

[0112] When the first swing button 41 moves toward the chuck 47 , the first swing button 41 drives the first swing arm 43 to swing toward the chuck 47 with the first pin 404 as the center, and the first swing arm 43 drives the first connecting block 434 to move toward the chuck 47 , thereby driving the first swing pull tab 36 to move toward the turntable 4 .

[0113] like Fig.18 As shown, the first long hole 361 on the first swing pull tab 36 drives the swing joint 4 to swing toward the swing pull tab 36 with the joint pin 21 as the center through the first swing pin 22 .

[0114] like Fig.19 As shown, at this time, the safety button 62 is released, and under the elastic force of the compression spring 49, the clutch shaft 48 and the safety slider 61 are reset, and the clutch shaft 48 re-enters the interior of the chuck 47.

[0115] At this time, even if you try to press the first swing button 41, because the clutch shaft 48 has entered the chuck 47, the first tooth piece 471 cannot tilt toward the center of the chuck 47, and is blocked by the first swing button sliding teeth 411 and the first tooth piece 471, the first swing button 41 cannot be pressed, and the swing joint 4 swinging toward the first swing pull tab 36 is locked, and the swing angle will not change due to accidental touch. At this time, if the jaw position is still not ideal, you can rotate the turntable 4 to drive the clamp head 1 and the clamp rod 3 to rotate around the axis of the clamp rod 3 until the jaws are aligned with the blood vessel.

[0116] The movable handle 52 is closed, and the push end 521 of the movable handle pushes the groove 462, thereby driving the shaft 46 to move in the inner hole 512 of the fixing frame in a direction away from the rotating disk 4. The closing pull tab 34 is driven by the shaft 46 to move toward the rotating disk 4, and then the first clamp head 11 and the second clamp head 12 are closed through the closing pull tab pin 35, and the closing clamp 15 is closed to close the blood vessel.

[0117] By pressing the safety dial button 62 and the second swing button 42, the swing joint 4 can be swung toward the second swing pull tab 37 according to the above-mentioned similar process, thereby conveniently closing the blood vessel on the other side.

[0118] After adopting such a design, the utility model has at least the following advantages:

[0119] (1) The clamp applier designed in the utility model can adjust the angle between the clamp head and the clamp rod so that the jaws are accurately oriented toward the blood vessel to be closed, thereby preventing bleeding or the closing clamp from falling off.

[0120] (2) The utility model has a simple structure, good effect, low cost and easy process implementation.

[0121] After considering the utility model disclosed in the specification and examples, those skilled in the art will easily think of other embodiments of the utility model. This application is intended to cover any modification, use or adaptation of the utility model, which follows the general principles of the utility model and includes common knowledge or customary technical means in the art that are not disclosed in the utility model. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the utility model are indicated by the following claims.

[0122] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A clamping forceps, comprising a clamp head group (1), a clamp rod (3), a rotating disk (4) and a handle (5), wherein the clamp head group (1) comprises a first clamp head (11) and a second clamp head (12), the clamp rod (3) comprises a closing pull tab (34), the clamp head group (1) is connected to the handle (5) via the clamp rod (3) and the rotating disk (4), and the handle (5) controls the opening and closing of the first clamp head (11) and the second clamp head (12) via the closing pull tab (34) of the rotating disk (4) and the clamp rod (3), characterized in that: The clip applier also includes a swing joint (2), The swing joint (2) is located between the pliers head assembly (1) and the pliers rod (3), and the pliers rod (3) comprises a first inner core (32) and a second inner core (33); The distal end of the swing joint (2) is movably connected to the first clamp head (11) and the second clamp head (12) via a clamp head pin (13), and the proximal end of the swing joint (2) is movably connected to the first inner core (32) and the second inner core (33) via a joint pin (21); A first arc-shaped groove (321) is provided at the distal end of the first inner core (32), and a second arc-shaped groove (331) is provided at the distal end of the second inner core (33); The first swing pin (22) passes through the swing joint (2) and enters the first arc-shaped groove (321); The second swing pin (23) passes through the swing joint (2) and enters the second arc-shaped groove (331); When the swing joint (2) swings, the first swing pin (22) and the second swing pin (23) swing back and forth in the first arc groove (321) and the second arc groove (331) respectively, thereby driving the clamp head assembly 1 to bend.

2. The clip applier according to claim 1, characterized in that The first inner core (32) is provided with a first swing pull tab (36), the second inner core (33) is provided with a second swing pull tab (37), the first swing pull tab (36) is provided with a first long hole (361) at a distal end, the second swing pull tab (37) is provided with a second long hole (371) at a distal end, the first swing pin (22) passes through the first arc-shaped groove (321) and the first long hole (361) in sequence, and the second swing pin (23) passes through the second arc-shaped groove (331) and the second long hole (371) in sequence; When the first swing pull tab (36) moves toward the proximal direction, it drives the first swing pin (22) to rotate along the track of the first arc groove (321), and the second swing pull tab (37) moves toward the distal direction, driving the second swing pin (23) to rotate along the track of the second arc groove (331), so that the swing joint (2) is bent; When the first swing pull tab (36) moves toward the distal direction, it drives the first swing pin (22) to rotate along the track of the first arc groove (321), and the second swing pull tab (37) moves toward the proximal direction, driving the second swing pin (23) to rotate along the track of the second arc groove (331), so that the swing joint (2) is bent; When the second swing pull tab (37) moves toward the proximal direction, it drives the second swing pin (23) to rotate along the track of the second arc groove (331), and the first swing pull tab (36) moves toward the distal direction, driving the first swing pin (22) to rotate along the track of the first arc groove (321), so that the swing joint (2) is bent; When the second swing pull tab (37) moves toward the distal direction, it drives the second swing pin (23) to rotate along the track of the second arc groove (331), and the first swing pull tab (36) moves toward the proximal direction, driving the first swing pin (22) to rotate along the track of the first arc groove (321), so that the swing joint (2) bends.

3. The clip applier according to claim 2, characterized in that The first arc-shaped groove (321) and the second arc-shaped groove (331) are concentric circles, and the first swing pin (22) assembled in the first arc-shaped groove (321) and the second swing pin (23) assembled in the second arc-shaped groove (331) can both rotate around the joint pin (21).

4. The clip applier according to claim 3, characterized in that The rotating disk (4) is provided with a first swing arm (43) and a second swing arm (44); the first swing arm (43) is provided with a first connecting block (434), and the second swing arm (44) is provided with a second connecting block (444); One end of the first connecting block (434) is connected to the proximal end of the first swing pull tab (36), and the other end of the first connecting block (434) is connected to the first swing arm hole (432) on the first swing arm (43); One end of the second connecting block (444) is connected to the proximal end of the second swing pull tab (37), and the other end of the second connecting block (444) is connected to the second swing arm hole (442) on the second swing arm (44); One end of the first swing arm (43) is fixed to the turntable housing (401) of the turntable (4) via a first pin shaft (404); One end of the second swing arm (44) is fixed to the turntable housing (401) of the turntable (4) via a second pin shaft (405); When the first swing arm (43) swings around the first pin shaft (404), it drives the first swing pull tab (36) to move back and forth; When the second swing arm (44) swings around the second pin shaft (405), it drives the second swing pull tab (37) to move back and forth.

5. The clip applier according to claim 4, characterized in that: The rotating disk (4) is provided with a first swing button (41) and a second swing button (42), and the rotating disk (4) is also provided with a chuck (47); The first swing button (41) is fixed to the end of the first swing arm (43); The second swing button (42) is fixed to the end of the second swing arm (44); The first swing button (41) is provided with a first swing button sliding tooth (411); The second swing button (42) is provided with a second swing button sliding tooth (421); The first swing button sliding tooth (411) and the second swing button sliding tooth (421) are respectively engaged with a first engaging tooth piece (471) and a second engaging tooth piece (472) on the chuck (47).

6. The clip applier according to claim 5, characterized in that: A turntable housing slideway (403) is provided inside the turntable housing (401) of the turntable (4), and the first swing button (41) and the second swing button (42) can move inside the turntable housing (401); The closing pull tab (34) is connected to the shaft (46) at one end close to the rotating disk (4) through a connecting pin (461). The chuck (47) is provided with a clutch shaft (48). A compression spring (49) is installed on the clutch shaft (48). The elastic force of the compression spring (49) makes the clutch shaft (48) tightly contact with the inside of the chuck (47).

7. The clip applier according to claim 6, characterized in that The clamp applier also includes a swing safety (6), wherein the swing safety (6) is provided with a safety slide block (61) and a safety dial button (62); The safety slider (61) and the safety dial button (62) are respectively fixed on a handle fixing frame (511) of the handle (5); The safety button (62) is fixed to the handle fixing frame (511) via a safety pin shaft (601); The safety button (62) is provided with a pin (621) which is inserted into the safety slide block long hole (613) of the safety slide block (61); When the safety button (62) is pressed, the safety button (62) rotates around the safety pin shaft (601), and the pin (621) pushes the safety slider (61) to move toward the safety button (62) through the safety slider slot (613).

8. The clip applier according to claim 7, characterized in that The safety slider (61) drives the clutch shaft (48) to move toward the safety dial button (62), so that the clutch shaft (48) is disengaged from the inside of the chuck (47), and the compression spring (49) is compressed at the same time; When the first swing button (41) is pressed, the first swing button sliding tooth (411) moves toward the chuck (47), and the first swing button sliding tooth (411) pushes the first clamping tooth piece (471) to tilt toward the center of the chuck (47); When the first swing button (41) moves toward the chuck (47), it drives the first swing arm (43) to swing toward the chuck (47) with the first pin shaft (404) as the center, and the first swing arm (43) drives the first connecting block (434) to move toward the chuck (47), thereby driving the first swing pull tab (36) to move toward the turntable (4).

9. The clip applier according to claim 8, characterized in that When the safety button (62) is released, the clutch shaft (48) and the safety slider (61) are reset under the elastic force of the compression spring (49), and the clutch shaft (48) re-enters the interior of the chuck (47); the swing joint (2) swinging toward the first swing pull tab (36) is locked.

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