CN107007327B

CN107007327B - Single-acting double-duckbilled intestinal clamp

Info

Publication number: CN107007327B
Application number: CN201710196736.4A
Authority: CN
Inventors: 苏国强
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-03-29
Filing date: 2017-03-29
Publication date: 2023-02-21
Anticipated expiration: 2037-03-29
Also published as: CN107007327A

Abstract

The invention discloses a pair of duck bill intestinal clamps capable of being singly moved, which comprises a fixed handle, a movable handle, an outer sleeve, a core bar, a base, a clamp seat, two pieces of duck bill clamps capable of being opened and closed, two button mechanisms and two transmission assemblies, wherein one end of the outer sleeve is connected with the fixed handle through the base, the other end of the outer sleeve is provided with the clamp seat, two clamp arms capable of being opened and closed are arranged on the clamp seat, and each clamp arm is respectively provided with one piece of duck bill clamp; the movable handle is rotatably connected with the fixed handle, the core bar is sleeved in the outer sleeve, one end of the core bar sequentially penetrates through the base and the fixed handle and is linked with the movable handle, and the other end of the core bar is in transmission connection with the two forceps arms so as to control the two forceps arms to open or close; the two button mechanisms are respectively arranged on the base and are respectively in one-to-one transmission connection with the two duckbilled pincers through the transmission assembly so as to respectively control the corresponding duckbilled pincers to open or close. The invention can be used for assisting laparoscopic surgery, and can complete stretching and fixing of two sides of tissues and two ends of an intestinal canal by one hand, thereby better implementing a laparoscopic minimally invasive technique.

Description

Single-acting double-duckbilled intestinal clamp

Technical Field

The invention relates to an operating forceps, in particular to a pair of single-action duck-bill intestinal forceps for laparoscopic surgery.

Background

The laparoscopic surgical instruments, the surgeon's techniques and the skilled cooperation among the doctors are the necessary conditions for the surgeon to complete laparoscopic minimally invasive surgery of stomach, colorectal cancer, etc., wherein the structure and function of the surgical instruments are greatly affected in the minimally invasive surgery. The abdominal cavity assisted minimally invasive surgery for the gastric cancer and the colorectal cancer generally comprises the following steps: surgical field exposure, dissection, lymph sweeping, intra-or extra-abdominal gastrointestinal detachment and anastomosis, etc. The laparoscopic instrument in the prior art can not stretch and fix both sides of tissues and both ends of an intestinal canal by a single hand of a single intestinal clamp, and is not favorable for better implementation of laparoscopic minimally invasive operation. Therefore, the double-duckbilled intestinal clamp is provided in the prior art, and the two duckbilled intestinal clamps can be opened and closed simultaneously, so that the problems are solved. Because two duckbilled pincers of this kind of operation pincers can open and shut simultaneously only, lead to the application of this kind of operation pincers to have the limitation, and the doctor can't carry out nimble control according to actual need during the use.

Disclosure of Invention

The invention provides a pair of duck-bill intestinal clamps capable of being operated singly, which is used for solving the defects of the double-duck-bill intestinal clamps in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a pair of duckbilled intestinal clamps capable of being singly operated comprises a fixed handle, a movable handle, an outer sleeve, a core bar, a base, a clamp seat, two openable and closable duckbilled clamps, two button mechanisms and two transmission assemblies, wherein one end of the outer sleeve is connected with the fixed handle through the base, the other end of the outer sleeve is provided with the clamp seat, two openable and closable clamp arms are arranged on the clamp seat, and each clamp arm is respectively provided with one duckbilled clamp; the movable handle is rotatably connected with the fixed handle, the core rod is sleeved in the outer sleeve, one end of the core rod sequentially penetrates through the base and the fixed handle and is linked with the movable handle, and the other end of the core rod is in transmission connection with the two clamp arms so as to control the two clamp arms to open or close; the two button mechanisms are respectively arranged on the base and are respectively in one-to-one transmission connection with the two duckbilled pincers through the transmission assembly so as to respectively control the corresponding duckbilled pincers to open or close.

Furthermore, the two button mechanisms respectively comprise a button, a return spring and a movable block, and the button is hinged to the base and hinged with the movable block matched in the base; the two transmission assemblies respectively comprise a first transmission rod and a connecting rod mechanism, the first transmission rod penetrates through the base, one end of the first transmission rod is connected with the movable block, the other end of the first transmission rod penetrates through the forceps base and is connected with the corresponding duckbill forceps through the connecting rod mechanism, and the reset spring is sleeved on the first transmission rod and is abutted between the front portion of the base and the movable block.

Furthermore, the button comprises a pressing rod and a pressing sheet, the pressing rod is hinged to the base, one end of the pressing rod is located outside the base and integrally connected with one end of the pressing sheet, and the other end of the pressing sheet faces the rear of the pressing rod; the other end of the pressure lever is hinged with the movable block.

Further, the base comprises a front sleeve piece, a middle sleeve piece and a rear sleeve piece, the front sleeve piece, the middle sleeve piece and the rear sleeve piece are sleeved and fixed one by one, the front sleeve piece is connected with the outer sleeve, and the rear sleeve piece is connected with the fixed handle; a positioning piece is fixed in the front sleeve piece, the positioning piece is provided with a through hole for the first transmission rod and the core rod to pass through, and the reset spring is abutted between the positioning piece and the movable block; the side wall of the middle sleeve is provided with two openings which correspond to the two button mechanisms one by one, the buttons are hinged between the two opposite side walls of the corresponding openings through hinge shafts, and the hinge shafts are perpendicular to the first transmission rods.

Furthermore, the connecting rod mechanism comprises a first connecting rod, a second connecting rod and two third connecting rods, the other end of the first 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 penetrates through the forceps arm; the duckbilled pliers comprise two pliers pieces, the rear parts of the two pliers pieces are hinged to the pliers arms in a crossed mode, one ends of the two third connecting rods are coaxially hinged to the other ends of the second connecting rods, and the other ends of the two third connecting rods are hinged to the rear ends of the two pliers pieces one by one respectively.

Furthermore, the clamp surfaces of the two clamp pieces are respectively provided with a tooth-shaped structure, and the two clamp pieces are meshed in a closed state.

Furthermore, the other end of the core rod is connected with one end of a second transmission rod, the second transmission rod penetrates through the forceps holder, and the other end of the second transmission rod is in transmission connection with the two forceps arms.

Furthermore, the core bar and the second transmission rod can rotate relatively, the base can be rotationally connected to the fixed handle around the axis of the base, the outer sleeve is relatively fixed with the base, a knob is fixedly sleeved outside the base, and the base is driven to rotate by rotating the knob.

Furthermore, the two forceps arms are hinged to the forceps base in a crossed mode, the rear portions of the two forceps arms are respectively provided with an oblique straight groove, and the second transmission rod is provided with a transmission pin which is in sliding connection with the two oblique straight grooves in a matched mode.

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

1. according to the invention, by arranging the two openable clamp arms, the two duckbilled clamps, the core bar and the movable handle for driving the two clamp arms to open and close, the two button mechanisms and the two transmission assemblies for respectively controlling the two duckbilled clamps to open and close together, the two duckbilled clamps can be controlled to open and close together, and the two duckbilled clamps can be respectively and independently controlled, so that the using requirements of laparoscopic minimally invasive surgery are met, the safety of the surgery operation is ensured, the surgery efficiency is greatly improved, the two duckbilled clamps are more flexibly controlled, various using requirements of doctors are met, and the limitation of the application of the double duckbilled intestinal clamps in the prior art is broken.

2. The button mechanism comprises a button, a return spring and a movable block, and has the characteristics of simple structure, convenience in operation, reliability and the like.

3. The rotary knob is further arranged, so that the forceps head can be adjusted by 360 degrees, and the operation is convenient.

The invention is further explained in detail with the accompanying drawings and the embodiments; however, the single-acting double-duckbill intestinal clamp of the present invention is not limited to the embodiments.

Drawings

FIG. 1 is an exploded schematic view (partially exploded) of the present invention;

FIG. 2 is an enlarged partial schematic view of FIG. 1;

FIG. 3 is an exploded schematic view (partially exploded) of the jaw portion of the present invention;

FIG. 4 is a schematic cross-sectional view of the present invention;

FIG. 5 is a schematic structural view of the present invention with the two jawarms in an open position;

FIG. 6 is a schematic structural view of the present invention in a closed state of the two jawarms;

figure 7 is a schematic view of the invention in an open position of one of the duckbills;

figure 8 is a schematic view of the invention in an expanded configuration with another duckbill.

Detailed Description

Referring to fig. 1-8, the single-acting double-duckbilled intestinal clamp of the present invention includes a fixed handle 2, a movable handle 1, an outer sleeve 4, a core bar 8, a base 3, a clamp base 5, two openable duckbilled clamps 7, two button mechanisms 10, and two transmission components.

One end of the outer sleeve 4 is connected with the fixed handle 2 through the base 3, the other end of the outer sleeve is provided with a clamp seat 5, two clamp arms 6 which can be opened and closed are arranged on the clamp seat 5, and one duckbill clamp 7 is respectively arranged on each clamp arm 6. The movable handle 1 is rotatably connected with the fixed handle 2, specifically, the movable handle 1 is hinged with the fixed handle 2, and the tail parts of the movable handle and the fixed handle are respectively provided with a closed hole for convenient operation, similar to the handle structure of scissors. The core bar 8 is sleeved in the outer sleeve 4, one end of the core bar 8 sequentially penetrates through the base 3 and the fixed handle 2 and is linked with the movable handle 1, and the other end of the core bar 8 is in transmission connection with the two forceps arms 6 to control the two forceps arms 6 to open or close and control the two duckbilled forceps 7 to open or close synchronously. The two button mechanisms 10 are respectively arranged on the base 3 and are respectively in one-to-one transmission connection with the two duckbills 7 through the transmission components so as to respectively control the corresponding duckbills 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, and the button is hinged to the base 3 and hinged to the movable block 102 fitted in the base 3; the two transmission assemblies respectively comprise a first transmission rod 9 and a connecting rod mechanism 91, the first transmission rod 9 penetrates through the base 3, one end of the first transmission rod 9 is connected with the movable block 102, the other end of the first transmission rod 9 penetrates through the clamp seat 5 and is connected with the corresponding duckbilled clamp 7 through the connecting rod mechanism 91, and the reset spring 103 is sleeved on the first transmission rod 9 and is 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 sheet 1012, the pressing rod 1011 is hinged to the base 3, one end of the pressing rod 1011 is located outside the base 3 and integrally connected with one end of the pressing sheet 1012, and the other end of the pressing sheet 1012 faces the rear of the pressing rod 1011; the other end of the pressure rod 1011 is hinged with the movable block 102. The base 3 comprises a front sleeve 31, a middle sleeve 32 and a rear sleeve 33, the front sleeve 31, the middle sleeve 32 and the rear sleeve 33 are sleeved and fixed one by one, the front sleeve 31 is connected with the outer sleeve 4, and the rear sleeve 33 is connected with the fixed handle 2. A positioning piece 311 is fixed inside the front sleeve 31, the positioning piece 311 is provided with through holes (specifically three through holes are provided and correspond to the two first transmission rods 9 and the core bar 8 respectively) for the first transmission rods 9 and the core bar 8 to pass through, and the return spring 103 is abutted between the positioning piece and the movable block 102; the side wall of the middle sleeve member 32 is provided with two openings 321 corresponding to the two button mechanisms 10 one by one, and the front ends of the two openings 321 axially penetrate through the side wall of the middle sleeve member respectively so as to install the buttons 101, the pressing rods 1011 of the buttons are hinged between the two opposite side walls of the corresponding openings through hinge shafts, and the hinge shafts are perpendicular to the first transmission rods 9.

In this embodiment, as shown in fig. 3, the link mechanism 91 includes a first link 911, a second link 912 and two third links 913, the other end of the first transmission rod 9 is hinged to one end of the first link 911, the other end of the first link 911 is hinged to one end of the second link 912, and the second link 912 passes through the forceps arm 6; the duckbill pliers 7 comprises two pliers sheets 71, the rear parts of the two pliers sheets 71 are hinged to the pliers arms 6 in a crossed mode, one ends of two third connecting rods 913 are hinged to the other ends of the second connecting rods 912 in a coaxial mode, and the other ends of the two third connecting rods 913 are hinged to the rear ends of the two pliers sheets 71 one by one. The two jaws 71 of each duckbill pliers 7 are provided with a tooth-like structure 711 on their respective jaw faces for increasing the contact friction, and they engage in the closed state. Each clip 71 is further provided with a long hole 712.

In this embodiment, the other end of the core bar 8 is connected to one end of a second transmission rod 81, the second transmission rod 81 passes through the caliper seat 5, and the other end of the second transmission rod 81 is in transmission connection with the two caliper arms 6. The two clamp arms 6 are hinged to the clamp base 5 in a crossed mode, the rear portions of the two clamp arms 6 are respectively provided with an oblique straight groove 61, a transmission pin 811 is arranged on the second transmission rod 81, and the transmission pin 811 is in sliding connection with the two oblique straight grooves 61 in a matched mode. The front part of the forceps base 5 is provided with a U-shaped groove for accommodating the two forceps arms 6. Similarly, the front part of each tong arm 6 is also provided with a U-shaped groove for accommodating two tong plates 71 of the corresponding duckbill pincers 7.

In this embodiment, the core bar 8 and the second transmission rod 81 can rotate relatively, the base 3 can be rotatably connected to the fixed handle 2 around the axis thereof, specifically, the front end 2 of the fixed handle is fixed with a connection sleeve 21, the rear sleeve 33 of the base is partially sleeved into the connection sleeve 21, and the two can rotate relatively, and a plurality of balls are filled between the two to reduce the rotational friction force of the two. The outer sleeve 4 is fixed relative to the base 3, the base 3 is fixedly sleeved with a knob 34, the knob 34 is rotated to drive the base 3 to rotate, and therefore the clamp head is driven to rotate 360 degrees. The forceps head is composed of the forceps base 5, the two forceps arms 6 and the two duckbill forceps 7.

In this embodiment, the front end of the movable handle 1 is provided with a groove 11 with a small outside and a large inside, and the side surface of the groove 11 is provided with an opening, specifically, the inside of the groove 11 is divided into an arc-shaped section (for accommodating one end of the core rod 8) and a straight section (for limiting one end of the core rod 8 and preventing the core rod 8 from moving out of the notch of the groove 11) from inside to outside, and correspondingly, the side opening also has an arc-shaped structure; one end of the core rod 8 is provided with a variable diameter section with a large outer part and a small inner part, 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 in the groove 11 of the movable handle 1 by utilizing the variable diameter section. Thus, when the movable handle 1 rotates relative to the fixed handle 2, the core bar 8 can be pushed or pulled by the movable handle 1 to realize axial movement.

The initial state of the invention is shown in fig. 5: at this time, the two caliper arms 6 are opened, and the two caliper pieces 71 of each caliper arm 6 are closed. When the movable handle 1 is rotated in the direction shown by the arrow in fig. 6, the tail of the movable handle 1 and the tail of the fixed handle 2 are close to each other, the front end of the movable handle 1 moves in the direction away from the front end of the fixed handle 2 and pulls the core bar 8 to move axially backwards, so as to drive the second transmission rod 81 to move axially and pull the two forceps arms 6 to close, as shown in fig. 6. When the movable handle 1 is rotated in the opposite direction, the front end of the movable handle 1 moves towards the direction close to the front end of the fixed handle 2 and pushes the core bar 8 to move axially, thereby driving the second transmission rod 81 to move axially and pushing the two forceps arms 6 to open, as shown in fig. 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 with the button to move forwards for a certain distance, and the return spring 103 is compressed, and the first transmission rod 9 moves forwards along with the movement of the movable block 102, so that one of the duckbills 7 is pushed to open, as shown in figure 7; when the other button is pressed, the button rotates and pushes the movable block 102 connected with the button to move forwards for a certain distance, the return spring 103 is compressed, and the first transmission rod 9 moves forwards along with the movement of the movable block 102, so that the other duckbill pliers 7 are pushed to open, as shown in figure 8. When the button is released, the button is reset and pulls the movable block 102 connected with the button to move backwards for a certain distance under the action of the restoring force of the reset spring 103, and the first transmission rod 9 also moves backwards, so that the corresponding duckbill pliers 7 are driven to close.

When both buttons are depressed, both duckbills 7 are held in an open state, and at this time, both arms 6 are controlled to be closed by rotating movable handle 1 in the direction shown in fig. 6, and both arms 6 are controlled to be opened by rotating movable handle 1 in the direction opposite to the arrow shown in fig. 6.

The invention can be used for assisting laparoscopic surgery, and the two duck-bill forceps can clamp and fix two cut ports of an intestinal canal in an abdominal cavity, thereby preventing intestinal contents from overflowing and avoiding pollution. More importantly, the two duckbilled clamps can clamp the intestine broken end clamps at two sides on the same horizontal plane when the intestines are anastomosed, so that the anastomotic ends are neatly joined, and each layer of the intestine wall at the anastomotic ends is fixed without displacement and torsion, thereby realizing the end-to-end anastomosis of the intestines in the abdominal cavity and being beneficial to realizing minimally invasive treatment. The invention can simultaneously complete stretching and supporting of tissues and surrounding gaps by one hand, fully expose the operation visual field and ensure the safety of operation.

The above embodiments are only used to further illustrate a single-acting double duckbill intestinal clamp of the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a but two duckbilled intestinal clamps of single action which characterized in that: the duckbill pliers comprise a fixed handle, a movable handle, an outer sleeve, a core bar, a base, a pliers seat, two openable duckbill pliers, two button mechanisms and two transmission assemblies, wherein one end of the outer sleeve is connected with the fixed handle through the base, the other end of the outer sleeve is provided with the pliers seat, two openable pliers arms are arranged on the pliers seat, and one duckbill pliers is respectively arranged on each pliers arm; the movable handle is rotatably connected with the fixed handle, the core bar is sleeved in the outer sleeve, one end of the core bar sequentially penetrates through the base and the fixed handle and is linked with the movable handle, and the other end of the core bar is in transmission connection with the two forceps arms so as to control the two forceps arms to open or close; the two button mechanisms are respectively arranged on the base and are respectively in one-to-one transmission connection with the two duckbilled pliers through the transmission assembly so as to respectively control the corresponding duckbilled pliers to open or close; the two duck-bill tongs can ensure that the tongs for the intestine sections at the two sides are clamped on the same horizontal plane when the intestines are anastomosed.

2. A single acting double duck bill intestinal clamp according to claim 1 wherein: the two button mechanisms respectively comprise a button, a return spring and a movable block, and the button is hinged to the base and hinged with the movable block matched in the base; the two transmission assemblies respectively comprise a first transmission rod and a connecting rod mechanism, the first transmission rod penetrates through the base, one end of the first transmission rod is connected with the movable block, the other end of the first transmission rod penetrates through the forceps base and is connected with the corresponding duckbill forceps through the connecting rod mechanism, and the reset spring is sleeved on the first transmission rod and is abutted between the front portion of the base and the movable block.

3. A single acting double duck bill intestinal clamp according to claim 2 wherein: the button comprises a pressing rod and a pressing sheet, the pressing rod is hinged to the base, one end of the pressing rod is located outside the base and integrally connected with one end of the pressing sheet, and the other end of the pressing sheet faces the rear of the pressing rod; the other end of the pressure lever is hinged with the movable block.

4. A single acting double duck bill intestinal clamp according to claim 2 wherein: the base comprises a front sleeve, a middle sleeve and a rear sleeve which are sleeved and fixed one by one, the front sleeve is connected with the outer sleeve, and the rear sleeve is connected with the fixed handle; a positioning piece is fixed in the front sleeve piece, the positioning piece is provided with a through hole for the first transmission rod and the core rod to pass through, and the reset spring is abutted between the positioning piece and the movable block; the side wall of the middle sleeve is provided with two openings which correspond to the two button mechanisms one by one, the buttons are hinged between the two opposite side walls of the corresponding openings through hinge shafts, and the hinge shafts are perpendicular to the first transmission rods.

5. A single acting double duck bill intestinal clamp according to claim 2 wherein: the connecting rod mechanism comprises a first connecting rod, a second connecting rod and two third connecting rods, the other end of the first 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 penetrates through the clamp arm; the duckbilled pliers comprise two pliers pieces, the rear parts of the two pliers pieces are hinged to the pliers arms in a crossed mode, one ends of the two third connecting rods are coaxially hinged to the other ends of the second connecting rods, and the other ends of the two third connecting rods are hinged to the rear ends of the two pliers pieces one by one respectively.

6. A single action dual duck bill intestinal clamp according to claim 5 wherein: the clamp surfaces of the two clamp pieces are respectively provided with a tooth-shaped structure, and the two clamp pieces are meshed in a closed state.

7. A single acting double duck bill intestinal clamp according to claim 1 wherein: the other end of the core rod is connected with one end of a second transmission rod, the second transmission rod penetrates through the forceps holder, and the other end of the second transmission rod is in transmission connection with the two forceps arms.

8. The single action dual duck bill intestinal clamp of claim 7 wherein: the core bar and the second transmission rod can rotate relatively, the base can be rotationally connected to the fixed handle around the axis of the base, the outer sleeve is relatively fixed with the base, a knob is fixedly sleeved outside the base, and the base is driven to rotate by rotating the knob.

9. The single action dual duck bill intestinal clamp of claim 7 wherein: the two clamp arms are hinged to the clamp seats in a crossed mode, the rear portions of the two clamp arms are respectively provided with an oblique straight groove, and the second transmission rod is provided with a transmission pin which is connected with the two oblique straight grooves in a sliding mode in a matched mode.