CN107007327B - Single-acting double-duckbilled intestinal clamp - Google Patents

Abstract

The invention discloses a single-action double duckbill pliers, which comprises a fixed handle, a movable handle, a jacket, a core rod, a base, a clamp seat, two duckbill pliers that can be opened and closed, two button mechanisms, and two transmission components. , one end of the coat is connected to the fixed handle through the base, and the other end is provided with a pliers seat. Two pliers arms that can be opened and closed are installed on the pliers seat, and each pliers arm is respectively equipped with a duckbill pliers; the movable handle is connected to the fixed handle in rotation. , the core rod is set in the jacket, and one end of the core rod passes through the base, the fixed handle and is linked with the movable handle in turn, and the other end of the core rod is connected with the transmission of the two pliers arms to control the opening or closing of the two pliers arms The two button mechanisms are respectively arranged on the base, and are connected to the two duckbill pliers one by one through the transmission assembly, so as to control the opening or closing of the corresponding duckbill pliers respectively. The invention can be used for assisting laparoscopic surgery, stretching and fixing the two sides of the tissue and the two ends of the intestinal tube by one hand, and better implement the laparoscopic minimally invasive technique.

Description

A Single Action Double Duckbill Intestine Forceps

technical field

The invention relates to a surgical forceps, in particular to a single-movable double duckbill intestinal forceps for laparoscopic surgery.

Background technique

Laparoscopic surgical instruments, surgeon's skills, and skilled cooperation among doctors are necessary conditions for surgeons to complete laparoscopic minimally invasive operations such as gastric cancer and colorectal cancer. Among them, the structure and function of surgical instruments have a great impact on minimally invasive surgery . Abdominal-assisted minimally invasive surgery for gastric and colorectal cancer generally includes the following steps: surgical field exposure, dissection, lymph node dissection, intra-abdominal or extra-abdominal gastrointestinal dissection and anastomosis, etc. The laparoscopic instruments in the prior art cannot stretch and fix both sides of the tissue and both ends of the intestinal tube with a single intestinal forceps with one hand, which is not conducive to better implementation of laparoscopic minimally invasive operations. For this reason, a kind of double duckbill intestine forceps has occurred in the prior art, and its two duckbill forceps can open and close simultaneously, has solved the above-mentioned problem. Because the two duckbill forceps of this surgical forceps can only be opened and closed simultaneously, the application of this surgical forceps is limited, and the doctor cannot flexibly control it according to actual needs during use.

Contents of the invention

The invention provides a single-action double duckbill pliers, which is used to solve the shortcomings of the double duckbill pliers in the prior art.

The technical solution adopted by the present invention to solve the technical problem is: a single-action double duckbill pliers, including a fixed handle, a movable handle, a jacket, a core rod, a base, a clamp seat, and two duckbills that can be opened and closed. Pliers, two button mechanisms, two transmission components, one end of the jacket is connected to the fixed handle through the base, the other end is provided with a pliers seat, and two pliers arms that can be opened and closed are installed on the pliers seat, and each pliers arm is respectively equipped with a duckbill Pliers; the movable handle is rotatably connected with the fixed handle, the core rod is set in the jacket, and one end of the core rod passes through the base, the fixed handle and is linked with the movable handle in turn, and the other end of the core rod is connected with the two pliers arms. To control the opening or closing of the two pliers arms; the two button mechanisms are respectively arranged on the base, and are respectively connected to the two duckbill pliers through a transmission component, so as to respectively control the opening or closing of the corresponding duckbill pliers.

Further, the two button mechanisms respectively include a button, a return spring and a movable block, the button is hinged to the base, and is hinged together with the movable block fitted in the base; the two transmission assemblies respectively include a first transmission Rod and linkage mechanism, the first transmission rod passes through the base, and one end of the first transmission rod is connected to the movable block, the other end passes through the clamp seat and is connected to the corresponding duckbill pliers through the linkage mechanism, and the return spring is sleeved It is on the first transmission rod and abutted between the front part of the base and the movable block.

Further, the button includes a pressing rod and a pressing piece, the pressing rod is hinged to the base, and one end of the pressing rod is located outside the base and integrally connected with one end of the pressing piece, and the other end of the pressing piece faces the rear of the pressing bar; The other end of the pressing rod is hinged with the movable block.

Further, the base includes a front kit, a middle kit and a rear kit, and the three are connected and fixed one by one, and the front kit is connected to the jacket, and the rear kit is connected to the fixed handle; a positioning piece is fixed inside the front kit, and the positioning piece is provided with a The through hole through which the first transmission rod and the core rod pass, the return spring is located between the positioning piece and the movable block; the side wall of the middle sleeve is provided with two openings corresponding to the two button mechanisms , the button is hinged between two opposite side walls of the corresponding opening through a hinge shaft, and the hinge shaft is perpendicular to the first transmission rod.

Further, the link mechanism includes a first link, a second link and two third links, the other end of the first transmission link is hinged to one end of the first link, and the first link The other end of the duckbill pliers is hinged with one end of the second connecting rod, and the second connecting rod passes through the pliers arm; One end of the three connecting rods is coaxially hinged to the other end of the second connecting rod, and the other ends of the two third connecting rods are respectively hinged to the rear ends of the two forceps.

Further, the jaw surfaces of the two jaws are respectively provided with tooth-like structures, and the two are meshed in the closed state.

Further, the other end of the core rod is connected to one end of a second transmission rod, the second transmission rod passes through the pliers seat, and the other end of the second transmission rod is in transmission connection with the two pliers arms.

Further, the core rod and the second transmission rod can rotate relatively, the base is connected to the fixed handle rotatably around its axis, the outer sleeve is relatively fixed to the base, and the outer sleeve of the base is fixed A knob drives the base to rotate by turning the knob.

Further, the two pliers arms are cross-hinged to the pliers seat, and the rear parts of the two pliers arms are respectively provided with an oblique straight groove, and a transmission pin is provided on the second transmission rod, and the transmission pin is adapted to slide In two oblique straight grooves.

Compared with the prior art, the present invention has the following beneficial effects:

1. In the present invention, two button mechanisms for respectively controlling the opening and closing of the two duckbill pliers are provided by setting two clamp arms that can be opened and closed, two duckbill pliers, a core rod for driving the two clamp arms to open and close, and a movable handle. And two transmission components, from which the two duckbill forceps can be controlled to open and close together, and the two duckbill forceps can also be controlled independently, so as to meet the needs of laparoscopic minimally invasive surgery, ensure the safety of surgical operations, and greatly improve The operation efficiency also makes the control of the two duckbill forceps more flexible, meets the various needs of doctors, and breaks the application limitation of the double duckbill intestinal forceps in the prior art.

2. The button mechanism includes a button, a return spring and a movable block, and has the characteristics of simple structure, convenient operation, and reliability.

3. The present invention further sets the knob so that the forceps head can be adjusted by 360°, which is convenient for operation.

The present invention will be further described in detail below with reference to the accompanying drawings and examples; however, the single-moving double duckbill intestinal forceps of the present invention is not limited to the examples.

Description of drawings

Fig. 1 is the exploded schematic view (partial decomposition) of the present invention;

Fig. 2 is a partially enlarged schematic diagram of Fig. 1;

Fig. 3 is an exploded schematic view (partially exploded) of the pliers part of the present invention;

Fig. 4 is a schematic sectional view of the present invention;

Fig. 5 is a structural schematic diagram of the present invention in the state where the two tong arms are opened;

Fig. 6 is a structural schematic diagram of the present invention in the closed state of the two tong arms;

Fig. 7 is a schematic structural view of the present invention in an open state of one of the duckbill pliers;

Fig. 8 is a structural schematic view of another duckbill pliers in an open state of the present invention.

Detailed ways

For the embodiment, please refer to Fig. 1-Fig. 8, a single-action double duckbill sausage pliers of the present invention includes a fixed handle 2, a movable handle 1, a jacket 4, a core rod 8, a base 3, and a forceps seat 5 , two duckbill pliers 7 that can be opened and closed, two button mechanisms 10, and two transmission components.

One end of the overcoat 4 is connected to the fixed handle 2 through the base 3, and the other end is provided with a pliers seat 5, on which two pliers arms 6 that can be opened and closed are housed, and one said duckbill pliers 7 is respectively housed on each pliers arm 6. The movable handle 1 is rotationally connected with the fixed handle 2. Specifically, the movable handle 1 and the fixed handle 2 are hinged, and the tails of the two are respectively provided with a closed hole for convenient operation, similar to the handle structure of scissors. The core rod 8 is sleeved in the outer jacket 4, and one end of the core rod 8 passes through the base 3, the fixed handle 2 and is linked with the movable handle 1 in turn, and the other end of the core rod 8 is connected with the two pliers arms 6 to control The two pliers arms 6 are opened or closed, and the two duckbill pliers 7 can be controlled to open or close synchronously. The two button mechanisms 10 are respectively arranged on the base 3, and are connected to the two duckbill pliers 7 one by one through the transmission assembly, so as to respectively control the corresponding duckbill pliers 7 to open or close.

In this embodiment, the two button mechanisms 10 respectively include a button 101, a return spring 103 and a movable block 102, the button is hinged to the base 3, and is hinged together with the movable block 102 fitted in the base 3; The two transmission assemblies respectively include a first transmission rod 9 and a link mechanism 91, the first transmission rod 9 passes through the base 3, and one end of the first transmission rod 9 is connected to the movable block 102, and the other end passes through the clamp seat 5 The corresponding duckbill pliers 7 are connected through the link mechanism 91 , and the return spring 103 is sleeved on the first transmission rod 9 and abutted between the front part of the base 3 and the movable block 102 .

In this embodiment, the button includes a pressing rod 1011 and a pressing piece 1012. The pressing rod 1011 is hinged to the base 3, and one end of the pressing rod 1011 is located outside the base 3 and is integrally connected with one end of the pressing piece 1012. The other end of the sheet 1012 faces to the rear of the pressing bar 1011 ; the other end of the pressing bar 1011 is hinged to the movable block 102 . The base 3 includes a front sleeve 31 , a middle sleeve 32 and a rear sleeve 33 , the three are fitted and fixed one by one, and the front sleeve 31 is connected to the outer sleeve 4 , and the rear sleeve 33 is connected to the fixed handle 2 . A positioning piece 311 is fixed inside the front sleeve 31, and the positioning piece 311 is provided with a through hole for the first transmission rod 9 and the core rod 8 to pass through (the number of the through holes is specifically three, which are respectively connected with the two first transmission rods). Rod 9 corresponds to core rod 8), the return spring 103 is set between the positioning piece and the movable block 102; the side wall of the middle sleeve 32 is provided with two openings 321 corresponding to the two button mechanisms 10 one-to-one , and the front ends of the two openings 321 axially pass through the side wall of the middle sleeve respectively, so as to facilitate the installation of the button 101, the pressing rod 1011 of the button is hinged between the two opposite side walls of the corresponding opening through the hinge shaft, and the hinge shaft Perpendicular to the first transmission rod 9.

In this embodiment, as shown in Figure 3, the linkage mechanism 91 includes a first linkage 911, a second linkage 912 and two third linkages 913, the other end of the first transmission rod 9 is connected to One end of the first connecting rod 911 is hinged, and the other end of the first connecting rod 911 is hinged with one end of the second connecting rod 912, and the second connecting rod 912 passes through the pliers arm 6; the duckbill pliers 7 includes two The pliers 71, the rear portions of the two pliers 71 are cross-hinged to the pliers arm 6, and one end of the two third connecting rods 913 is coaxially hinged to the other end of the second connecting rod 912, and the two third connecting rods 913 are The other end is respectively hinged with the rear ends of the two forceps 71 one by one. The clamp surfaces of the two jaws 71 of each duckbill pliers 7 are respectively provided with toothed structures 711 for increasing contact friction, and the two are meshed in the closed state. Each forceps piece 71 is also provided with a long hole 712 respectively.

In this embodiment, the other end of the core rod 8 is connected to one end of a second transmission rod 81, the second transmission rod 81 passes through the clamp seat 5, and the other end of the second transmission rod 81 is connected to the second transmission rod 81. Two tong arms 6 are connected in transmission. The two pliers arms 6 are cross-hinged to the pliers base 5, and the rear portions of the two pliers arms 6 are respectively provided with an oblique straight groove 61, and the second transmission rod 81 is provided with a transmission pin 811, and the transmission pin 811 Adaptive sliding joints are connected to two oblique straight grooves 61 . A U-shaped groove is provided at the front of the pliers base 5 for accommodating the two pliers arms 6 . Similarly, each pliers arm 6 is also provided with a U-shaped groove at the front for accommodating the two pliers 71 of the corresponding duckbill pliers 7 .

In this embodiment, the core rod 8 and the second transmission rod 81 are relatively rotatable, and the base 3 is connected to the fixed handle 2 so as to be rotatable around its axis. Specifically, the front end 2 of the fixed handle is fixed with a connecting sleeve 21 , the rear sleeve 33 of the base is partially inserted into the connecting sleeve 21, and the two can rotate relative to each other, and several balls are filled between the two to reduce the rotational friction between the two. The cover 4 is relatively fixed to the base 3, and a knob 34 is fixedly sleeved outside the base 3, and the base 3 is driven to rotate by rotating the knob 34, thereby driving the pliers to realize 360° rotation. The pliers base 5, two pliers arms 6, and two duckbill pliers 7 form a pliers head.

In this embodiment, the front end of the movable handle 1 is provided with a groove 11 that is small on the outside and large on the inside, and the side of the groove 11 is provided with an opening. Specifically, the inside of the groove 11 is divided into arc-shaped segments from the inside to the outside ( One end for accommodating the core rod 8) and a straight section (one end for limiting the core rod 8 to prevent the core rod 8 from moving out of the notch of the groove 11), correspondingly, its side opening also has an arc-shaped structure; One end of the core rod 8 has a diameter-reducing section with a large outside and a small inside. One end of the core rod 8 extends into the groove 11 from the side opening of the groove 11 of the movable handle 1, and is movably clamped on the movable handle 1 by its diameter-reducing section. In the groove 11 of the handle 1. In this way, when the movable handle 1 rotates relative to the fixed handle 2, the core rod 8 can be pushed or pulled by the movable handle 1 to achieve axial movement.

The initial state of the present invention is shown in Figure 5: at this moment, the two pincer arms 6 are opened, and the two pincer blades 71 on each pincer arm 6 are closed. When the movable handle 1 is rotated in the direction shown by the arrow in Figure 6, the tail of the movable handle 1 and the tail of the fixed handle 2 move closer, and the front end of the movable handle 1 moves away from the front end of the fixed handle 2 and pulls the core rod 8 to move axially backward. , thereby driving the second transmission rod 81 to move axially and pulling the two pliers arms 6 to close, as shown in FIG. 6 . When the movable handle 1 is reversely rotated, the front end of the movable handle 1 moves toward the front end of the fixed handle 2 and pushes the core rod 8 to move axially, thereby driving the second transmission rod 81 to move axially and pushing the two pliers arms 6 to open , as shown in Figure 5.

In the state shown in Figure 6, when one of the buttons is pressed, the button rotates and pushes the movable block 102 connected to it to move forward for a certain distance, and the back-moving spring 103 is compressed, and along with the movement of the movable block 102, the second A transmission rod 9 also moves forward thereupon, thus promoting one of the duckbill pliers 7 to open, as shown in Figure 7; distance, and the return spring 103 is compressed, as the movable block 102 moves, the first transmission rod 9 also moves forward, thereby pushing the other duckbill pliers 7 to open, as shown in FIG. 8 . When the button is released, under the restoring force of the return spring 103, the button resets and pulls the movable block 102 connected to it to move backward for a certain distance, and the first transmission rod 9 also moves backward, thereby driving the corresponding duckbill pliers 7 closed.

When the two buttons were all pressed down, the two duckbill pliers 7 remained open. At this time, by turning the movable handle 1 along the direction shown in Figure 6, the two clamp arms 6 can be controlled to close. Rotating the movable handle 1 in the direction opposite to the arrow shown can control the opening of the two pliers arms 6 .

The invention can be used to assist laparoscopic surgery, and the two duckbill forceps can clamp and fix the two broken ports of the intestinal tube in the abdominal cavity, so as to prevent the spillage of intestinal contents and avoid pollution. More importantly, its two duckbill forceps can ensure that the two sides of the intestinal anastomosis can be clamped on the same horizontal plane, so that the anastomotic ends can be aligned neatly, and the layers of the intestinal wall at the anastomotic end can be fixed without displacement or twisting. The end-to-end anastomosis is conducive to the realization of minimally invasive treatment. At the same time, the present invention can stretch and support the tissue and the surrounding space with one hand, fully expose the surgical field of view, and ensure the safety of the surgical operation.

The foregoing embodiments are only used to further illustrate a single-action double duckbill intestinal forceps of the present invention, but the present invention is not limited to the embodiments, and any simple modifications made to the above embodiments according to the technical essence of the present invention are equivalent to Changes and modifications all fall within the protection scope of the technical solutions of the present invention.

Claims (9)

1. A single-action double duckbill pliers is characterized in that: it includes a fixed handle, a movable handle, an overcoat, a core rod, a base, a clamp seat, two duckbill pliers that can be opened and closed, two button mechanisms, two Transmission assembly, one end of the jacket is connected to the fixed handle through the base, and the other end is provided with a pliers seat, which is equipped with two pliers arms that can be opened and closed, and each pliers arm is respectively equipped with a duckbill pliers; the movable handle and the fixed handle Rotational connection, the core rod is set in the jacket, and one end of the core rod passes through the base, the fixed handle and is linked with the movable handle in turn, and the other end of the core rod is connected with the transmission of the two pliers arms to control the opening of the two pliers arms or close; the two button mechanisms are respectively arranged on the base, and are respectively connected with the two duckbill pliers by transmission components one by one to control the opening or closing of the corresponding duckbill pliers; the two duckbill pliers can ensure that the intestinal anastomosis Clamp both intestinal stumps at the same level. 2. The single-action double duckbill intestine pliers according to claim 1, characterized in that: the two button mechanisms respectively include a button, a return spring and a movable block, the button is hinged to the base, and is matched with the base The movable blocks in the seat are hinged together; the two transmission assemblies respectively include a first transmission rod and a linkage mechanism, the first transmission rod passes through the base, and one end of the first transmission rod is connected to the movable block, and the other end passes through the The pliers seat is connected to the corresponding duckbill pliers through a link mechanism, and the return spring is sleeved on the first transmission rod, and is abutted between the front part of the base and the movable block. 3. The single-action double duckbill sausage pliers according to claim 2, characterized in that: the button includes a pressing rod and a pressing piece, the pressing rod is hinged to the base, and one end of the pressing rod is located outside the base And it is integrally connected with one end of the pressing piece, and the other end of the pressing piece faces to the rear of the pressing bar; the other end of the pressing bar is hinged with the movable block. 4. The single-action double duckbill sausage pliers according to claim 2, characterized in that: the base includes a front set, a middle set and a rear set, the three are set and fixed one by one, and the front set is connected to the outer cover, and the rear set is connected to the outer cover. The kit is connected with a fixed handle; a positioning piece is fixed inside the front kit, and the positioning piece is provided with a through hole for the first transmission rod and the core rod to pass through, and the return spring is arranged between the positioning piece and the movable block; The side wall of the middle sleeve is provided with two openings corresponding to the two button mechanisms one by one, and the button is hinged between two opposite side walls of the corresponding opening through a hinge shaft, and the hinge shaft is perpendicular to the first transmission rod. 5. The single-action double duckbill sausage pliers according to claim 2, characterized in that: said linkage mechanism comprises a first connecting rod, a second connecting rod and two third connecting rods, said first connecting rod The other end of the transmission rod is hinged with one end of the first connecting rod, the other end of the first connecting rod is hinged with one end of the second connecting rod, and the second connecting rod passes through the pliers arm; the duckbill pliers includes two For the pliers, the rear parts of the two pliers are cross-hinged to the pliers arm, one end of the two third connecting rods is coaxially hinged to the other end of the second connecting rod, and the other ends of the two third connecting rods are connected to the two pliers respectively. The rear ends of the pieces are hinged one by one. 6 . The single-action double duckbill sausage forceps according to claim 5 , wherein the forceps of the two forceps are respectively provided with tooth-like structures, and the two are meshed in the closed state. 7 . 7. The single-action double duckbill sausage pliers according to claim 1, characterized in that: the other end of the core rod is connected to one end of a second transmission rod, and the second transmission rod passes through the clamp seat, And the other end of the second transmission rod is in transmission connection with the two pliers arms. 8. The single-action double duckbill sausage pliers according to claim 7, characterized in that: the core rod and the second transmission rod can rotate relative to each other, and the base is connected to the fixed shaft so that it can rotate around its axis. The handle, the outer cover is relatively fixed to the base, and a knob is fixedly sleeved outside the base, and the base is driven to rotate by rotating the knob. 9. The single-action double duckbill sausage pliers according to claim 7, characterized in that: the two pliers arms are cross-hinged to the pliers seat, and the rear parts of the two pliers arms are respectively provided with an oblique straight groove, A transmission pin is provided on the second transmission rod, and the transmission pin is adapted to slide in two oblique straight grooves.

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