Anti-deflection continuous firing clamping device

Abstract

The present invention discloses an anti-deflection continuous-fire clamping pliers device, comprising a magazine, wherein a first clamping head and a second clamping head are installed in the longitudinal direction of the magazine, and U-shaped spring pieces are installed on the front of the tail ends of the first clamping head and the second clamping head. A small wing structure extends from an inner side where the U-shaped spring piece is connected to the first clamping head, and a characteristic groove is formed on the magazine with the small wing structure. The function of the small wing structure is to prevent the U-shaped spring piece from falling into the characteristic groove when it is in a compressed state during operation, so as to ensure the lateral stability of the U-shaped spring piece; a first welding point and a second welding point are respectively arranged on the front of the tail ends of the first clamping head and the second clamping head, so as to ensure that the U-shaped spring piece will not fall off after being compressed and rebounded during movement.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an anti-deflection burst clamping forceps device. Background Art

[0002] In the current medical surgical procedures, the traditional large-area surgical wound is shifted to minimally invasive surgery with small incisions and localized surgery. Clip applicators are used in the field of minimally invasive surgery. The broken blood vessels of patients during the operation are clamped to close the broken blood vessels and stop bleeding, preventing the patient's broken blood vessels from continuing to bleed, causing a drop in blood pressure and the risk of blood loss. Compared with traditional hemostatic forceps, the use of this clip applicator can quickly close the broken blood vessels, greatly reducing the amount of bleeding caused by broken blood vessels and reducing surgical risks.

[0003] When the existing clamp applicator triggers the ligation clamp, the spring piece of the clamp pushes the ligation clamp forward to clamp and close the blood vessel during the reciprocating motion. However, the existing continuous-firing clamp applicator is used by medical staff during surgery. The instrument changes surgical postures, shakes back and forth, and is temporarily placed on a sterile operating table for bumping and then picked up for surgery. There will be repeated use during surgery, and the clamp head and U-shaped spring piece will shift and fall off during excessive bumping, which will eventually cause flying nails or the ligation clamp to tilt after the instrument triggers the ligation clamp, resulting in failure to close the blood vessel, increasing the duration of the operation and reducing the doctor's surgical efficiency. Summary of the invention

[0004] The present invention provides an anti-deflection continuous-firing clamping forceps device, which can ensure that the U-shaped spring piece and the clamping head for clamping the ligation clamp are stable and firm and do not fall off during the process of firing the ligation clamp, and ensure that they are in the correct posture position. The spring piece and the ligation clamp maintain a fixed distance of empty travel during the movement, and effectively prevent the driving spring piece from not falling on the tail end of the ligation clamp after the ligation clamp is misplaced. The head end structure of the driving spring piece effectively prevents the ligation clamp from being deflected.

[0005] To solve the above problems, the technical solution provided by the present invention is as follows:

[0006] An embodiment of the present invention provides an anti-deflection burst clamp device, comprising a magazine (9), wherein the magazine (9) is provided with a first clamp head (1) and a second clamp head (5) in the longitudinal direction, and a U-shaped spring piece (4) is provided on the front of the tail of the first clamp head (1) and the second clamp head (5), and a small wing structure (3) extends from the inner side of the U-shaped spring piece (4) connected to the first clamp head (1), and the small wing structure (3) and the first clamp head (1) form a characteristic groove (2) on the magazine (9), and the small wing structure (3) is used to prevent the U-shaped spring piece (4) from falling into the characteristic groove (2) when it is in a compressed state during operation, so as to ensure the lateral stability of the U-shaped spring piece (4);

[0007] A first welding point (6) and a second welding point (7) are respectively arranged on the front side of the tail end of the first clamping head (1) and the second clamping head (5), for ensuring that the U-shaped spring sheet (4) will not fall off after being compressed and rebounding during the movement; a paddle (8) is installed on the reverse side of the tail end of the first clamping head (1) and the second clamping head (5), and the paddle (8) plays the role of opening the first clamping head (1) and the second clamping head (5).

[0008] According to an optional embodiment of the present invention, a double-sided push clamp (23) is installed on the top (12) of the magazine (9), a ligation clamp (16) is installed between the magazines (9), and the ligation clamp (16) is connected to the end of the double-sided push clamp (23).

[0009] According to an optional embodiment of the present invention, a first inclined plate (15) and a second inclined plate (18) are provided on both sides of the end of the double-sided push clamp (23), an inclined groove (20) is provided in the middle of the end of the double-sided push clamp (23), and the end of the inclined groove (20) is connected to a first bent spring sheet (19), a protruding structure (21) and a second bent spring sheet (22).

[0010] According to an optional embodiment of the present invention, the ligation clamp (16) is provided with a first cylindrical structure (13) and a second cylindrical structure (17), and the ligation clamp (16) is connected to the first bent spring piece (19) and the second bent spring piece (22) via two elastic members (14).

[0011] According to an optional embodiment of the present invention, the double-sided push clamp (23) performs parallel reciprocating motion in the axial direction of the magazine (9) to push the ligation clamp (16) to perform linear motion in the magazine (9) parallel to the magazine (9). Each time the double-sided push clamp (23) performs a reciprocating motion, the ligation clamp (16) moves a pitch in a direction parallel to the magazine (9). The pitch of movement is determined by the spacing of the array spring pieces of the double-sided push clamp (23). During the return process of the double-sided push clamp (23), the first bent spring piece (19) and the second bent spring piece (22) at the end thereof will move the ligation clamp (16) at the end to correct the position of the next ligation clamp (16), so that the position of the next ligation clamp (16) in the magazine is not skewed or offset, and the installation position of the ligation clamp (16) in the magazine (9) is reset.

[0012] According to an optional embodiment of the present invention, the extending structure (21) has the function of supporting the ligation clip (16) at the front end of the double-sided pushing clip (23), so that the tail of the ligation clip (16) does not warp during the forward movement, ensuring that the ligation clip (16) maintains smooth movement in a straight line direction during the forward movement of the ligation clip in the magazine (9), and preventing the double-sided pushing clip (23) from extending from the side of the tail of the ligation clip (16) in the forward direction when pushing the ligation clip (16), thereby causing the ligation clip (16) to fail to close; the first inclined plate (15) and the second inclined plate (18) correspondingly push the first cylindrical structure (13) and the second cylindrical structure (17), synchronously and symmetrically pushing the ligation clip (16) forward, so that the stability of the ligation clip (16) during the forward movement is improved.

[0013] Compared with the prior art, the embodiment of the present invention provides an anti-deflection continuous firing clamping forceps device, which has the following beneficial effects: (1) The push clamp pushes the ligation clamp in the track, and the left and right clamp heads of the clamp head clamp the ligation clamp and can have a good function of keeping the ligation clamp pre-tightened in the clamp head and preventing it from flying out during the continuous firing process. (2) The clamp head and the U-shaped spring piece adopt a new structure to cooperate. During the movement of the instrument, the clamp head will press the U-shaped spring piece when it opens and closes to prevent it from falling off. (3) After the clamp head presses the U-shaped spring piece, spot welding is added at the tail of the clamp head and the two arms of the U-shaped spring piece to further increase the firmness of the matching of the instrument parts. (4) It solves the problem that the instrument vibrates, falls, and bumps against the operating table during inventory transfer, transportation, and use by medical staff, and the instrument clamp head and the U-shaped spring piece fall off, resulting in instrument failure during the operation. (5) The front end of the push clamp has the function of supporting the ligation clamp, so that the tail of the ligation clamp does not warp during the forward movement. (6) The double-row spring clips on both sides of the push clip push the ligation clip forward to avoid the deformation and failure of the single-side spring clip and insufficient thrust, which may cause the ligation clip to fail to be pushed to the specified position. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A schematic diagram of the assembly and coordination of an anti-deflection burst clamping pliers device provided in an embodiment of the present application.

[0016] Figure 2 A schematic diagram of the compression of the U-shaped spring piece provided in an embodiment of the present application after the U-shaped spring piece cooperates with the magazine and the paddle.

[0017] Figure 3 Schematic diagram of the U-shaped spring provided in an embodiment of the present application after it cooperates with the magazine and the plectrum.

[0018] Figure 4 Schematic diagram of the original state of the U-shaped spring piece after being matched with the magazine and the paddle provided in an embodiment of the present application.

[0019] Figure 5 This is a schematic diagram of the original state of the plectrum after the U-shaped spring piece provided in the embodiment of the present application cooperates with the magazine and the plectrum.

[0020] Figure 6 This is a schematic diagram of the cooperation between the double-sided push clip, the ligation clip and the magazine provided in an embodiment of the present application.

[0021] Figure 7 for Figure 6 A is an enlarged schematic diagram.

[0022] Figure 8 A schematic diagram of a double-sided push clip provided in an embodiment of the present application.

[0023] Fig. 9 for Figure 8 The enlarged schematic diagram of point B in FIG.

[0024] Fig.10 A schematic diagram of the installation of a first clamping head, a second clamping head and a double-sided push clamp in an anti-deflection continuous firing clamp device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, an embodiment of the present invention provides an anti-deflection burst clamp device, including a magazine 9, on which a first clamp head 1 and a second clamp head 5 are mounted in the longitudinal direction. The first clamp head 1 and the second clamp head 5 cannot move forward and backward in the magazine 9, but can rotate around a preset fulcrum. A U-shaped spring piece 4 is mounted on the front of the tail of the first clamp head 1 and the second clamp head 5. A small wing structure 3 extends from the inner side of the U-shaped spring piece 4 connected to the first clamp head 1. The small wing structure 3 and the first clamp head 1 form a characteristic groove 2 on the magazine 9. The small wing structure 3 is used to prevent the U-shaped spring piece 4 from falling into the characteristic groove 2 when it is in a compressed state during operation, so as to ensure the lateral stability of the U-shaped spring piece 4.

[0027] The front of the tail end of the first clamping head 1 and the second clamping head 5 are respectively provided with a first welding point 6 and a second welding point 7, which are used to ensure that the U-shaped spring piece 4 will not fall off after compression and rebound during the movement, ensure the stability of the movement of the instrument, and prevent the flying nails of the instrument. The first clamping head 1 and the second clamping head 5 are installed with a paddle 8 on the reverse side of the tail, and the paddle 8 plays the role of opening the first clamping head 1 and the second clamping head 5. In this embodiment, the tail end 10 of the first clamping head 1 and the tail end 11 of the second clamping head 5 are installed with a paddle 8. Compared with the traditional U-shaped spring piece design, the U-shaped spring piece 4 of the present invention is assembled by flipping 180°. The first clamping head 1 and the second clamping head 5 press the U-shaped spring piece 4 during the movement and will not pop out vertically, resulting in failure of the instrument firing ligation clamp.

[0028] like Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the top 12 of the magazine 9 is equipped with a double-sided push clip 23, which is a structural feature formed by stamping, bending and plastic deformation of stainless steel metal material. The two sides of the double-sided push clip 23 are composed of double springs, and the springs are arranged in an array with equal spacing on its axis. A ligation clamp 16 is installed between the magazines 9, and the ligation clamp 16 is connected to the ends of the double-sided push clip 23. In this embodiment, the first clamping head 1 and the second clamping head 5 are installed on the magazine 9, and the double-sided push clip 23 is installed on the magazine 9. Fig.10 The middle position is its initial position, and the double-sided push clamp 23 moves back and forth.

[0029] like Fig. 9 As shown, the first inclined plate 15 and the second inclined plate 18 are arranged on both sides of the end of the double-sided push clamp 23, and the middle position of the end of the double-sided push clamp 23 is provided with an inclined groove 20, and the ends of the inclined groove 20 are connected to the first bent spring piece 19, the extension structure 21 and the second bent spring piece 22. Figure 7 As shown, the ligation clamp 16 is provided with a first cylindrical structure 13 and a second cylindrical structure 17 , and the ligation clamp 16 is connected to the first bent spring piece 19 and the second bent spring piece 22 via two elastic members 14 .

[0030] The inclined groove 20 at the end of the double-sided push clamp 23 ensures that it can slide back to the back. The tail of the ligation clamp 16 needs to be pushed, and the ligation clamp 16 can be effectively pushed forward under the action of elastic force. The first bent spring piece 19 and the second bent spring piece 22 connected on both sides of the head of the push clamp 16 have the following functions during the return process: the ligation clamp 16 with an offset axial position is pushed to the center position, and its installation position in the magazine 9 is corrected, thereby playing a resetting function.

[0031] Specifically, the double-sided pushing clamp 23 reciprocates parallel to the axial direction of the magazine 9 to push the ligation clamp 16 to make a linear motion parallel to the magazine 9 in the magazine 9. Each time the double-sided pushing clamp 23 makes a reciprocating motion, the ligation clamp 16 will move a pitch in the direction parallel to the magazine 9. The pitch of the movement is determined by the spacing of the array spring pieces of the double-sided pushing clamp 23. During the return process of the double-sided pushing clamp 23, the first bent spring piece 19 and the second bent spring piece 22 at its end will move the ligation clamp 16 at the end to correct the position of the next ligation clamp 16, so that the position of the next ligation clamp 16 in the magazine is not skewed or offset, and the installation position of the ligation clamp 16 in the magazine 9 is reset.

[0032] The extending structure 21 has the function of supporting the ligation clamp 16 at the front end of the double-sided pushing clamp piece 23, so that the tail of the ligation clamp 16 does not warp during the forward movement, ensuring that the ligation clamp 16 maintains smooth movement in a straight line direction during the forward movement of the ligation clamp in the magazine 9, and preventing the double-sided pushing clamp piece 23 from extending from the tail side of the forward direction of the ligation clamp 16 when pushing the ligation clamp 16, thereby causing the ligation clamp 16 to fail to close. The first inclined plate 15 and the second inclined plate 18 correspondingly push the first cylindrical structure 13 and the second cylindrical structure 17, synchronously and symmetrically push the ligation clamp 16 forward, thereby ensuring the stability of the ligation clamp 16 during the forward movement.

[0033] As described above, during the movement of firing the ligation clamp in the clamping forceps device of the present invention, the first clamping head 1 and the second clamping head 5 are fixed on the magazine 9, and the first clamping head 1 and the second clamping head 5 are opened by sliding the paddle 8 on the tail end 10 and the tail end 11 of the first clamping head 1 and the second clamping head 5 to control the rotation. When the paddle 8 slides to the tail end of the first clamping head 1 and the second clamping head 5, the first clamping head 1 and the second clamping head 5 are opened to the maximum angle, and at the same time, the U-shaped spring clip 4 is in a compressed state. Then the movement state of the clamping forceps device is when the paddle 8 slides to the front end of the first clamping head 1 and the second clamping head 5, and the first clamping head 1 and the second clamping head 5 return to the most original initial state under the rebound of the compression force of the U-shaped spring clip 4. Figure 4This cycle is repeated until all ligation clips 16 are fired. During the movement of the instrument, due to the repeated movement of the U-shaped spring piece 4 and the paddle 8, the U-shaped spring piece 4 is prone to plastic deformation during the movement, and the width of the two spring arms will be reduced, causing the U-shaped spring piece to fall off easily. The first welding point 6 and the second welding point 7 are added to the U-shaped spring piece 4 at the tail end 10 of the first clamping head 1 and the tail end 11 of the second clamping head 5, which can ensure that the U-shaped spring piece 4 will not fall off after compression and rebound during the movement, thereby ensuring the stability of the movement of the clamping forceps device.

[0034] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to them. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered within the protection scope of the present invention. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be based on the scope defined by the claims.

Claims

1. An anti-deflection burst clamping device, characterized in that: The invention comprises a magazine (9), wherein a first clamping head (1) and a second clamping head (5) are mounted on the magazine (9) in the longitudinal direction, and a U-shaped spring piece (4) is mounted on the front of the tail of the first clamping head (1) and the second clamping head (5), and a small wing structure (3) extends from the inner side of the U-shaped spring piece (4) connected to the first clamping head (1), and the small wing structure (3) and the first clamping head (1) form a characteristic groove (2) on the magazine (9), and the small wing structure (3) is used to prevent the U-shaped spring piece (4) from falling into the characteristic groove (2) when it is in a compressed state during operation, so as to ensure the lateral stability of the U-shaped spring piece (4); A first welding point (6) and a second welding point (7) are respectively arranged on the front sides of the tail ends of the first clamping head (1) and the second clamping head (5), for ensuring that the U-shaped spring sheet (4) will not fall off after being compressed and rebounding during movement; a paddle (8) is installed on the reverse sides of the tail ends of the first clamping head (1) and the second clamping head (5), and the paddle (8) serves to open the first clamping head (1) and the second clamping head (5); A double-sided push clamp (23) is installed on the top (12) of the magazine (9), a ligation clamp (16) is installed between the magazines (9), and the ligation clamp (16) is connected to the end of the double-sided push clamp (23); A first inclined plate (15) and a second inclined plate (18) are provided on both sides of the end of the double-sided push clamp (23); an inclined groove (20) is provided in the middle of the end of the double-sided push clamp (23); and the end of the inclined groove (20) is connected to a first bent spring sheet (19), a protruding structure (21) and a second bent spring sheet (22).

2. The anti-deflection burst clamp device according to claim 1, characterized in that: The ligation clamp (16) is provided with a first cylindrical structure (13) and a second cylindrical structure (17), and the ligation clamp (16) is connected to the first bent spring sheet (19) and the second bent spring sheet (22) via two elastic members (14).

3. The anti-deflection burst clamp device according to claim 2, characterized in that: The double-sided push clamp (23) performs parallel reciprocating motion in the axial direction of the magazine (9) to push the ligation clamp (16) to perform linear motion in the magazine (9) parallel to the magazine (9). Each time the double-sided push clamp (23) performs a reciprocating motion, the ligation clamp (16) moves a pitch in a direction parallel to the magazine (9). The pitch of movement is determined by the spacing of the array spring pieces of the double-sided push clamp (23). During the return process of the double-sided push clamp (23), the first bent spring piece (19) and the second bent spring piece (22) at the end of the double-sided push clamp (23) move the ligation clamp (16) at the end to correct the position of the next ligation clamp (16), so that the position of the next ligation clamp (16) in the magazine is not skewed or offset, and the installation position of the ligation clamp (16) in the magazine (9) is reset.

4. The anti-deflection burst clamp device according to claim 3, characterized in that: The extending structure (21) has the function of supporting the ligation clip (16) at the front end of the double-sided pushing clip (23), so that the tail of the ligation clip (16) does not warp during the forward movement, ensuring that the ligation clip (16) maintains smooth movement in a straight line direction during the forward movement of the ligation clip in the magazine (9), and preventing the double-sided pushing clip (23) from extending from the side of the tail of the ligation clip (16) in the forward direction when pushing the ligation clip (16), thereby causing the ligation clip (16) to fail to close; the first inclined plate (15) and the second inclined plate (18) correspondingly push the first cylindrical structure (13) and the second cylindrical structure (17), synchronously and symmetrically pushing the ligation clip (16) forward, so that the stability of the ligation clip (16) during the forward movement is improved.

Images