Bending control type surgical scissors used under laparoscope

Abstract

The utility model relates to the field of surgical scissors, in particular to a pair of bending control type surgical scissors used under a laparoscope, which comprises a scissor head, a scissor rod and a scissor handle which are connected in sequence, the scissor head comprises a driving steering blade, a driven steering blade, a rotating shaft driving rod and a rotating shaft; the scissor rod comprises a fixed scissor rod, a scissor operating rod and a steering operating rod; one end of the steering operating rod is rotatably connected with one end, far away from the rotating shaft, of the rotating shaft driving rod; the scissor handle comprises a fixed scissor handle, a movable scissor handle and a jackscrew, the fixed scissor handle is connected with one end, away from the driving steering blade, of the fixed scissor rod, the movable scissor handle is connected with one end, away from the driven steering blade, of the scissor operating rod, and the steering operating rod is connected with the fixed scissor handle. According to the surgical scissors, the scissor heads can be detached from the scissor rods, so that the scissor heads and the scissor rods can be deeply cleaned and simply cleaned respectively, the cleaning difficulty of the surgical scissors is reduced, and meanwhile, the cleaning efficiency of the surgical scissors is improved.

Description

Technical Field

[0001] The utility model relates to the field of surgical scissors, in particular to a pair of curved-controlled surgical scissors used under laparoscopy. Background Art

[0002] During abdominal surgery, laparoscopic scissors are needed to cut and trim tissues. Obviously, it is easiest to trim when the blades of the scissors are perpendicular to the long axis of the target tissue. However, due to the three-dimensional structure of the human body, the orientation of tissues in the abdominal cavity, such as blood vessels and fascia, is arbitrary. Therefore, in actual use, it is often the case that the orientation of the tissue to be trimmed is almost parallel to the blade of the scissors, which makes it difficult for the scissors to trim the target tissue, or the cut surface of the tissue is large, bleeding is excessive, and it is difficult to sew.

[0003] For this purpose, people have designed several surgical scissors with bendable scissor heads, such as the steerable laparoscopic scissors disclosed in CN 221490121 U. In order to realize the bending function of the scissor head, such surgical scissors usually have a slender shape and a complex internal structure. In particular, the bent part of the scissor rod is prone to accumulation of dirt and germs, which makes maintenance and disinfection difficult and easily increases the risk of infection. Utility Model Content

[0004] The utility model aims to provide a pair of curved-control surgical scissors for laparoscopy, which aims to reduce the difficulty of maintenance and disinfection of the curved-control surgical scissors.

[0005] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0006] A laparoscopic curved-control surgical scissors, comprising a scissor head, a scissor rod and a scissor handle connected in sequence; the scissor head comprises an active steering blade, a driven steering blade, a rotating shaft driving rod and a rotating shaft, the rotating shaft passes through and rotatably connects the center of the active steering blade, the center of the driven steering blade and one end of the rotating shaft driving rod;

[0007] The scissor lever comprises a fixed blade lever, a scissor operating lever and a steering operating lever, one end of the fixed blade lever is rotatably connected to the end of the active steering blade away from its own blade edge, the scissor operating lever is rotatably connected to the end of the driven steering blade away from its own blade edge, and one end of the steering operating lever is rotatably connected to the end of the shaft driving lever away from the shaft;

[0008] The scissors handle comprises a fixed handle, a movable handle and a top screw, wherein the fixed handle is connected to an end of the fixed knife rod away from the active steering blade, the movable handle is connected to an end of the scissors operating rod away from the driven steering blade, and an end of the steering operating rod away from the rotating shaft driving rod passes through the fixed handle and is frictionally connected to the fixed handle through the top screw;

[0009] Among them, the movable knife handle is used to drive the scissors operating rod to push the driven steering blade to rotate relative to the active steering blade to realize the opening and closing of the scissors head; the rotating shaft driving rod is used to push the rotating shaft to move, so that the active steering blade and the driven steering blade are synchronously turned to realize the steering of the scissors head; the fixed knife rod, the scissors operating rod and the steering operating rod can be disconnected and connected from a position close to the scissors head, so that the scissors head can be removed.

[0010] Furthermore, sleeves are sleeved on the outer sides of the fixed knife rod, the scissor operating rod and the steering operating rod.

[0011] Furthermore, the sleeve is fixedly connected to the fixed knife rod or is an integral part, and the scissor operating rod and the steering operating rod are slidably connected to the sleeve.

[0012] Furthermore, a through hole is formed on the fixed knife handle, which penetrates the fixed knife handle to expose the steering operating rod. A nut is welded on the outside of the through hole. The thread of the top screw is threadably connected to the nut. The end of the top screw passes through the through hole and abuts against the side wall of the steering operating rod.

[0013] Furthermore, the active steering blade has a first shaft hole that passes through the center of the active steering blade to connect to the rotating shaft, one end of the active steering blade has a blade, and the other end is rotatably connected to the fixed blade rod.

[0014] Furthermore, the driven steering blade has a second shaft hole that passes through its center to connect to the rotating shaft, one end of which has a blade, and the other end of which is rotatably connected to the scissors operating rod.

[0015] Furthermore, one end of the rotating shaft driving rod has a third shaft hole that passes through its center to connect with the rotating shaft.

[0016] Furthermore, the scissors operating rod includes a first connecting rod and a second connecting rod, the driven steering blade, the first connecting rod and the second connecting rod are hinged in sequence, and the second connecting rod is slidably connected to the fixed blade rod.

[0017] Furthermore, the fixed knife rod includes a first rod portion close to the fixed knife handle and a second rod portion close to the active steering blade, and the first rod portion and the second rod portion are pluggable connected; the second connecting rod includes a third rod portion close to the movable knife handle and a fourth rod portion close to the driven steering blade, and the third rod portion and the fourth rod portion are pluggable connected; the steering operating rod includes a fifth rod portion close to the fixed knife handle and a sixth rod portion close to the rotating shaft, and the fifth rod portion and the sixth rod portion are pluggable connected.

[0018] Furthermore, the first rod portion, the third rod portion and the fifth rod portion are respectively fixedly connected with three spring pins, and the second rod portion, the fourth rod portion and the sixth rod portion are provided with pin holes that cooperate with the spring pins.

[0019] Compared with the prior art, this application has the following beneficial effects:

[0020] Provided are curved-control surgical scissors for laparoscopy, wherein the scissor head can be detached from the scissor rod, so that the scissor head and the scissor rod can be respectively subjected to deep cleaning and simple cleaning, thereby reducing the cleaning difficulty of the surgical scissors and improving the cleaning efficiency of the surgical scissors. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0023] Figure 2 A front view of a working condition of an embodiment of the utility model;

[0024] Figure 3 A front view of another working condition of an embodiment of the utility model;

[0025] Figure 4 It is an assembly diagram of an embodiment of the utility model;

[0026] Figure 5 This is an example diagram of the scissors head and the scissors handle being separated according to an embodiment of the utility model;

[0027] The numbers in the figure represent the following:

[0028] 1-scissors head; 11-active steering blade; 111-first shaft hole; 12-driven steering blade; 121-second shaft hole; 13-rotating shaft driving rod; 131-third shaft hole; 14-rotating shaft; 2-scissors rod; 21-fixed knife rod; 211-first rod portion; 212-second rod portion; 22-scissors operating rod; 221-first connecting rod; 222-second connecting rod; 223-third rod portion; 224-fourth rod portion; 23-steering operating rod; 231-fifth rod portion; 232-sixth rod portion; 24-sleeve; 25-spring pin; 3-scissors handle; 31-fixed knife handle; 311-nut; 32-movable knife handle; 33-top screw. DETAILED DESCRIPTION

[0029] 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.

[0030] Traditional surgical scissors are difficult to maintain and disinfect, especially in the curved portion of the scissor rod 2 where dirt and germs are easily accumulated, increasing the risk of infection.

[0031] In order to solve the above problems, this embodiment provides a pair of curved-controlled surgical scissors for laparoscopy.

[0032] Figure 1 The structural diagram of surgical scissors was shown. Figure 2 The main view of a working state of surgical scissors is shown. Figure 3 Another view of the surgical scissors in another working state is shown, combined with Figure 1 , Figure 2 , Figure 3 The surgical scissors include a scissor head 1, a scissor rod 2 and a scissor handle 3 which are connected in sequence.

[0033] The scissor head 1 includes an active steering blade 11, a driven steering blade 12, a shaft driving rod 13 and a shaft 14, wherein the shaft 14 passes through and rotatably connects the center of the active steering blade 11, the center of the driven steering blade 12 and one end of the shaft driving rod 13.

[0034] The scissors rod 2 includes a fixed knife rod 21, a scissors operating rod 22, a steering operating rod 23 and a sleeve 24. One end of the fixed knife rod 21 is rotatably connected to the end of the active steering blade 11 away from its own blade edge, the scissors operating rod 22 is rotatably connected to the end of the driven steering blade 12 away from its own blade edge, one end of the steering operating rod 23 is rotatably connected to the end of the shaft driving rod 13 away from the shaft 14, and the sleeve 24 is sleeved on the outside of the fixed knife rod 21, the scissors operating rod 22 and the steering operating rod 23.

[0035] The scissors handle 3 includes a fixed handle 31, a movable handle 32 and a top screw 33. The fixed handle 31 is connected to the end of the fixed knife rod 21 away from the active steering blade 11, the movable handle 32 is connected to the end of the scissors operating rod 22 away from the driven steering blade 12, and the end of the steering operating rod 23 away from the rotating shaft driving rod 13 passes through the fixed handle 31 and is frictionally connected to the fixed handle 31 through the top screw 33.

[0036] How surgical scissors work:

[0037] The position of the fixed knife handle 31 remains unchanged, the movable knife handle 32 is moved, and the scissors operating rod 22 pushes the driven steering blade 12 to rotate relative to the active steering blade 11, so that the scissors head 1 is opened and closed.

[0038] The position of the fixed knife handle 31 remains unchanged, the steering operating rod 23 is moved, and the shaft driving rod 13 pushes the shaft 14 to move, so that the active steering blade 11 and the driven steering blade 12 are synchronously steered, thereby realizing the bending of the scissors head 1.

[0039] Preferably, the sleeve 24 is fixedly connected to the fixed knife rod 21 or is an integral part, and the scissor operating rod 22 and the steering operating rod 23 are slidably connected to the sleeve 24 .

[0040] Furthermore, Figure 4 An exploded view of surgical scissors was shown, combined with Figure 4 .

[0041] The active steering blade 11 has a first shaft hole 111 penetrating through the center of the active steering blade 11 to connect to the rotating shaft 14 , one end of the active steering blade 11 has a blade, and the other end of the active steering blade 11 is rotatably connected to the fixed blade rod 21 .

[0042] The driven steering blade 12 has a second shaft hole 121 penetrating through the center thereof to connect to the rotating shaft 14 , one end of which has a blade, and the other end of which is rotatably connected to the scissor operating rod 22 .

[0043] One end of the shaft driving rod 13 has a third shaft hole 131 penetrating through the center of the shaft driving rod 13 to connect with the shaft 14 .

[0044] The scissors operating rod 22 includes a first connecting rod 221 and a second connecting rod 222 . The driven steering blade 12 , the first connecting rod 221 and the second connecting rod 222 are hinged in sequence. The second connecting rod 222 is slidably connected to the fixed blade rod 21 .

[0045] The fixed knife handle 31 is formed with a through hole penetrating through the fixed knife handle 31 to expose the steering operating rod 23 . A nut 311 is welded to the outside of the through hole. The thread of the top screw 33 is threadedly connected to the nut 311 . The end of the top screw 33 abuts against the side wall of the steering operating rod 23 .

[0046] Furthermore, Figure 5 An example of separating the scissor head 1 from the scissor handle 3 is shown. Figure 5 .

[0047] The fixed blade rod 21 includes a first rod portion 211 close to the fixed blade handle 31 and a second rod portion 212 close to the active steering blade 11, and the first rod portion 211 and the second rod portion 212 are pluggably connected;

[0048] The second connecting rod 222 includes a third rod portion 223 close to the movable handle 32 and a fourth rod portion 224 close to the driven steering blade 12, and the third rod portion 223 and the fourth rod portion 224 are pluggably connected;

[0049] The steering operating rod 23 includes a fifth rod portion 231 close to the fixed handle 31 and a sixth rod portion 232 close to the rotating shaft 14, and the fifth rod portion 231 and the sixth rod portion 232 are pluggably connected;

[0050] Specifically, the above-mentioned pluggable connection is achieved through spring pins 25, and three spring pins 25 are respectively fixedly connected to the first rod portion 211, the third rod portion 223 and the fifth rod portion 231, and the second rod portion 212, the fourth rod portion 224 and the sixth rod portion 232 are provided with pin holes that cooperate with the spring pins 25.

[0051] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A laparoscopic curved surgical scissors, characterized in that: It comprises a scissor head (1), a scissor rod (2) and a scissor handle (3) which are connected in sequence; The scissor head (1) comprises an active steering blade (11), a passive steering blade (12), a rotating shaft driving rod (13) and a rotating shaft (14); the rotating shaft (14) penetrates and rotatably connects the center of the active steering blade (11), the center of the passive steering blade (12) and one end of the rotating shaft driving rod (13); The scissor lever (2) comprises a fixed blade lever (21), a scissor operating lever (22) and a steering operating lever (23); one end of the fixed blade lever (21) is rotatably connected to an end of the active steering blade (11) away from its own blade edge; the scissor operating lever (22) is rotatably connected to an end of the passive steering blade (12) away from its own blade edge; and one end of the steering operating lever (23) is rotatably connected to an end of the rotating shaft driving lever (13) away from the rotating shaft (14); The scissors handle (3) comprises a fixed handle (31), a movable handle (32) and a top screw (33); the fixed handle (31) is connected to an end of the fixed blade rod (21) away from the active steering blade (11); the movable handle (32) is connected to an end of the scissors operating rod (22) away from the driven steering blade (12); an end of the steering operating rod (23) away from the rotating shaft driving rod (13) passes through the fixed handle (31) and is frictionally connected to the fixed handle (31) via the top screw (33); The movable knife handle (32) is used to drive the scissor operating rod (22) to push the driven steering blade (12) to rotate relative to the active steering blade (11), so as to realize the opening and closing of the scissor head (1); the rotating shaft driving rod (13) is used to push the rotating shaft (14) to move, so that the active steering blade (11) and the driven steering blade (12) are synchronously turned, so as to realize the turning of the scissor head (1); the fixed knife rod (21), the scissor operating rod (22) and the steering operating rod (23) can be disconnected and connected from a position close to the scissor head (1), so that the scissor head (1) can be removed.

2. The laparoscopic curved surgical scissors according to claim 1, characterized in that: The fixed knife rod (21), the scissor operating rod (22) and the steering operating rod (23) are sleeved with sleeves (24) on their outer sides.

3. The laparoscopic curved surgical scissors according to claim 2, characterized in that: The sleeve (24) is fixedly connected to the fixed knife rod (21) or is an integral part, and the scissor operating rod (22) and the steering operating rod (23) are slidably connected to the sleeve (24).

4. The laparoscopic curved surgical scissors according to claim 1, characterized in that: The fixed knife handle (31) is formed with a through hole penetrating the fixed knife handle (31) so as to expose the steering operating rod (23); a nut (311) is welded to the outside of the through hole; a thread of the top screw (33) is threadedly connected to the nut (311); an end of the top screw (33) passes through the through hole and abuts against a side wall of the steering operating rod (23).

5. The laparoscopic curved surgical scissors according to claim 1, characterized in that: The active steering blade (11) has a first shaft hole (111) that passes through its center to connect to the rotating shaft (14), one end of which has a blade edge, and the other end of which is rotatably connected to the fixed blade rod (21).

6. The laparoscopic curved surgical scissors according to claim 1, characterized in that: The driven steering blade (12) has a second shaft hole (121) penetrating through its center for connecting to the rotating shaft (14), one end of which has a blade, and the other end of which is rotatably connected to the scissor operating rod (22).

7. The laparoscopic curved surgical scissors according to claim 1, characterized in that: One end of the rotating shaft driving rod (13) is provided with a third shaft hole (131) penetrating through the center of the rotating shaft driving rod for connecting with the rotating shaft (14).

8. The laparoscopic curved surgical scissors according to claim 1, characterized in that: The scissor operating rod (22) comprises a first connecting rod (221) and a second connecting rod (222); the driven steering blade (12), the first connecting rod (221) and the second connecting rod (222) are hinged in sequence; and the second connecting rod (222) is slidably connected to the fixed blade rod (21).

9. The laparoscopic curved surgical scissors according to claim 8, characterized in that: The fixed blade rod (21) comprises a first rod portion (211) close to the fixed blade handle (31) and a second rod portion (212) close to the active steering blade (11), the first rod portion (211) and the second rod portion (212) being pluggably connected; The second connecting rod (222) comprises a third rod portion (223) close to the movable knife handle (32) and a fourth rod portion (224) close to the driven steering blade (12), and the third rod portion (223) and the fourth rod portion (224) are pluggably connected; The steering operating rod (23) comprises a fifth rod portion (231) close to the fixed knife handle (31) and a sixth rod portion (232) close to the rotating shaft (14); the fifth rod portion (231) and the sixth rod portion (232) are pluggably connected.

10. The laparoscopic curved surgical scissors according to claim 9, characterized in that: The first rod portion (211), the third rod portion (223) and the fifth rod portion (231) are respectively fixedly connected to three spring column pins (25), and the second rod portion (212), the fourth rod portion (224) and the sixth rod portion (232) are provided with pin holes that cooperate with the spring column pins (25).

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