CN215534732U

CN215534732U - Laparoscopic liver pedicle blocking forceps

Info

Publication number: CN215534732U
Application number: CN202121620736.0U
Authority: CN
Inventors: 王小明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-12
Filing date: 2021-07-15
Publication date: 2022-01-18
Anticipated expiration: 2031-07-15

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to laparoscopic liver pedicle blocking forceps. Aiming at the problems that the blocking forceps in the prior art cannot be directly used when applied to laparoscopic surgery and a working channel needs to be established by a puncture outfit first, so that the blocking forceps are inconvenient to use, the utility model provides laparoscopic pedicle blocking forceps which comprise a forceps head assembly and a handle assembly capable of driving the opening and closing degree of the forceps head assembly to change, wherein an intermediate connecting shaft made of rigid material is arranged between the forceps head assembly and the handle assembly, one end of the intermediate connecting shaft is connected with the forceps head assembly, and the other end of the intermediate connecting shaft is connected with the handle assembly. The utility model has the intermediate connecting shaft made of rigid material, so that when the handle component drives the forceps head component to clamp, the intermediate connecting shaft keeps a fixed state, can be directly applied to laparoscopic surgery, does not need to additionally establish a working channel, and is convenient to use.

Description

Laparoscopic liver pedicle blocking forceps

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to laparoscopic liver pedicle blocking forceps.

Background

Laparoscopic hepatectomy is a complex and risk-intensive procedure, and bleeding that is difficult to control during the procedure is a significant factor limiting the development of laparoscopic hepatectomy and a major factor in transit laparotomy. Despite the increase of abdominal CO₂The means of pneumoperitoneum pressure, controlled low central venous pressure, etc. can reduce bleeding during laparoscopic hepatectomy, but these means sometimes still cannot meet the bleeding control requirement in the operation. Therefore, the laparoscopic liver blood flow blocking technique is still very important to improve the safety of the operation.

Generally, there are two main ways of blocking hepatic blood flow, namely, half-hepatic blood flow blocking and whole-hepatic blood flow blocking. When the blood flow of the hemihepatic is blocked, the blood supply of the healthy side liver is not influenced, and the influence on the liver function is small; but the operation is difficult and easy to bleed, and the operation time is increased. The whole liver blood flow is blocked, the operation is simpler, the effect is exact, and the method is almost suitable for various types of hepatectomy; but can cause ischemic injury of healthy liver and gastrointestinal congestion, and has limited blocking time. At present, two blood flow blocking modes are used in laparoscopic liver resection, and the specific blocking methods are different, but the methods have common defects: 1. the materials used for blocking the blood flow are simple and crude, such as rubber bands, hemp ropes, silicone tubes and the like, so far, no blocking instrument in the real sense of forming exists, 2, the blocking effect is uncertain, the blocking degree cannot be accurately controlled, and the blocking instrument is mainly based on the subjective feeling of an operator; 3. when the blocking is implemented or released in the operation process, the operation visual field needs to be transferred from the liver section to the liver pedicle, at the moment, the liver cutting process needs to be suspended, so the operation process is influenced, the operation time is prolonged, and the defect is particularly obvious under the condition that the complicated hepatectomy needs to repeatedly block the liver blood flow. Therefore, there is a strong need for a complete blood flow blocking device to solve the above problems and make laparoscopic hepatectomy safer.

In response to this problem, research and study have been conducted in long-term production and life practice, and for example, chinese utility model patent discloses a pipe blocking clamp [ application No.: 201821232987.X ], the utility model comprises two hinged forceps bodies, each forceps body comprises a forceps head, a forceps arm and a finger ring, and is characterized in that the tail ends of the forceps heads of the two forceps bodies are respectively and rotatably provided with a clamping block, and the opposite surfaces of the two clamping blocks are of a plane structure; in the clamping state, the opposite surfaces of the two clamping blocks keep parallel to clamp the pipeline.

The utility model discloses a have the effect of clamp closure pipeline, nevertheless this pipeline blocks binding clip and the connected mode that the tong arm adopted direct articulated to connect of pincers, can not directly use when being applied to laparoscopic surgery like this, need utilize the puncture ware earlier to establish a working channel, and it is comparatively inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a laparoscopic pedicle blocking forceps that is convenient for use in laparoscopic surgery.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a pair of laparoscopic liver pedicle blocking forceps comprises a forceps head assembly and a handle assembly capable of driving the opening and closing degree of the forceps head assembly to change, wherein a middle connecting shaft made of rigid materials is further arranged between the forceps head assembly and the handle assembly, one end of the middle connecting shaft is connected with the forceps head assembly, and the other end of the middle connecting shaft is connected with the handle assembly.

In foretell peritoneoscope hepatic pedicle of liver blocks pincers, the binding clip subassembly includes the fixed half claw with middle even axle fixed connection and the loose joint half claw with middle even axle rotation connection, rotates the half claw of loose joint in order to change the degree of opening and shutting of binding clip subassembly, the handle subassembly includes the fixed handle with middle even axle fixed connection and the loose joint handle with middle even axle rotation connection, be connected through coupling assembling between loose joint handle and the loose joint half claw, rotate loose joint handle accessible coupling assembling and drive loose joint half claw and rotate.

In the laparoscopic pedicle of liver blocking forceps, the middle connecting shaft is a hollow pipe body with a smooth outer surface, and the connecting component is arranged inside the middle connecting shaft.

In the laparoscopic liver pedicle blocking forceps, the connecting assembly comprises a driving rotating block fixedly connected to the loose joint handle and a driven rotating block fixedly connected to the loose joint half claw, the driving rotating block and the driven rotating block are both rotatably connected with the middle connecting shaft, and the driven rotating block can be driven to rotate by rotating the driving rotating block.

In the laparoscopic pedicle of liver blocking forceps, the driving rotating block is provided with a first switching point and a first driving point, and the driving rotating block is rotatably connected with the middle connecting shaft through the first switching point; the driven rotating block is provided with a second switching point and a second driving point, the driven rotating block is rotatably connected with the middle connecting shaft through the second switching point, and the first driving point is in driving connection with the second driving point through a hinge rod.

In the laparoscopic pedicle blocking forceps described above, the first transition site is closer to the articulating handle than the first drive site, and the second drive site is closer to the articulating half-claw than the second transition site.

In the laparoscopic liver pedicle blocking forceps, the fixed handle and the loose joint handle are mutually locked through the anti-loosening tooth structure.

In the laparoscopic liver pedicle blocking forceps, the surface of one end, away from the middle connecting shaft, of the fixed half claw is provided with the positioning teeth in a protruding mode, the surface of one end, away from the middle connecting shaft, of the loose joint half claw is provided with the positioning groove sunken towards the inside of the loose joint half claw, the loose joint half claw can be rotated to enable the positioning teeth to be embedded into the positioning groove, and at the moment, a gap is formed between the fixed half claw and the loose joint half claw.

In the above-described laparoscopic pedicle blocking forceps, the width of the gap is 5 mm.

In the laparoscopic pedicle blocking forceps, one end of the forceps head assembly, which is away from the intermediate connecting shaft, is bent downward.

Compared with the prior art, the utility model has the advantages that:

1. the utility model has the intermediate connecting shaft made of rigid material, so that when the handle component drives the forceps head component to clamp, the intermediate connecting shaft keeps a fixed state, can be directly applied to laparoscopic surgery, does not need to additionally establish a working channel, and is convenient to use.

2. The positioning teeth of the utility model are also provided with gaps after being embedded into the positioning grooves, thus avoiding the damage of common bile duct in the laparoscopic hepatectomy.

3. The middle connecting shaft of the utility model is of a structure with a smooth surface, thereby effectively avoiding the damage to the tissues of a patient.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a partial schematic structural view of the right side of the present invention;

in the figure: the pliers head assembly 1, the handle assembly 2, the middle connecting shaft 3, the connecting assembly 4, the fixed half claw 11, the movable joint half claw 12, the positioning tooth 13, the positioning groove 14, the gap 15, the fixed handle 21, the movable joint handle 22, the driving rotating block 41, the driven rotating block 42, the first rotating point 43, the first driving point 44, the second rotating point 45 and the second driving point 46.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in figure 1, the laparoscopic liver pedicle blocking forceps comprise a forceps head assembly 1 and a handle assembly 2 capable of driving the opening and closing degree of the forceps head assembly 1 to change, wherein an intermediate connecting shaft 3 made of rigid material is arranged between the forceps head assembly 1 and the handle assembly 2, and the rigid material can be stainless steel or other materials commonly used in the prior art as long as the rigid material is ensured not to deform during use. The middle connecting shaft 3 is a whole body which is not deformed, so that the middle connecting shaft can be used as a working channel in the using process, and a puncture outfit is not needed to be used for additionally establishing a working channel. One end of the middle connecting shaft 3 is connected with the forceps head component 1, and the other end of the middle connecting shaft is connected with the handle component 2.

When the medical forceps are used, the middle connecting shaft 3 is inserted into the body of a patient, one end of the middle connecting shaft 3, which is provided with the forceps head assembly 1, extends into the body of the patient to be clamped, and the handle assembly 2 is arranged outside the body of the patient to facilitate the operation of medical staff. Therefore, the utility model is provided with the intermediate connecting shaft 3 made of rigid material, so that when the handle component 2 drives the forceps head component 1 to clamp, the intermediate connecting shaft 3 is kept in a fixed state, thus the utility model can be directly applied to laparoscopic surgery without additionally establishing a working channel and is convenient to use.

Specifically speaking, binding clip subassembly 1 includes with middle half claw 11 of fixed of linking 3 fixed connection and with middle half claw 12 of loose joint that links 3 rotation connection of axle, rotates half claw 12 of loose joint in order to change binding clip subassembly 1's the degree that opens and shuts, handle subassembly 2 includes with middle fixed handle 21 of linking 3 fixed connection of axle and with middle loose joint handle 22 of linking 3 rotation connection of axle, be connected through coupling assembling 4 between loose joint handle 22 and the half claw 12 of loose joint, rotate loose joint handle 22 accessible coupling assembling 4 and drive half claw 12 of loose joint and rotate.

Preferably, the middle connecting shaft 3 is a hollow pipe body with a smooth outer surface, and the connecting assembly 4 is arranged inside the middle connecting shaft 3. The middle connecting shaft 3 of the utility model has a smooth surface structure, thereby effectively avoiding the damage to the tissues of patients.

As shown in fig. 1, the connecting assembly 4 includes a driving rotating block 41 fixedly connected to the articulated handle 22 and a driven rotating block 42 fixedly connected to the articulated half-claw 12, the driving rotating block 41 and the driven rotating block 42 are both rotatably connected to the intermediate connecting shaft 3, and the driving rotating block 41 is rotated to drive the driven rotating block 42 to rotate.

Specifically, a first switching point 43 and a first driving point 44 are arranged on the driving rotating block 41, and the driving rotating block 41 is rotatably connected with the middle connecting shaft 3 through the first switching point 43; the driven rotating block 42 is provided with a second switching point 45 and a second driving point 46, the driven rotating block 42 is rotatably connected with the middle connecting shaft 3 through the second switching point 45, and the first driving point 44 is in driving connection with the second driving point 46 through a hinge rod (not shown in the figure). The first interface point 43 is closer to the articulating handle 22 than the first drive point 44, and the second drive point 46 is closer to the articulating jaw half 12 than the second interface point 45.

During use and clamping, the movable joint handle 22 is rotated to move upwards so as to drive the driving rotating block 41 to rotate by taking the first switching point 43 as a center, during rotation, the first driving point 44 moves forwards and pushes the hinge rod, the hinge rod pushes the second driving point 46, so that the driven rotating block 42 rotates by taking the second switching point 45 as a center, and at the moment, the movable joint half claw 12 is pressed downwards to be matched with the fixed half claw 11 to realize clamping. When releasing, the loose joint handle 22 is operated in the opposite direction, and the loose joint half claw 12 and the fixed half claw 11 are separated from each other through the reverse process.

As shown in FIG. 1, the fixed handle 21 and the movable handle 22 are locked with each other by a locking tooth structure 23. Thus, when clamping, the anti-loose tooth structure 23 can be used for realizing the holding of the clamping state.

As shown in fig. 1, a positioning tooth 13 protrudes from one end surface of the fixed half claw 11 away from the intermediate coupling shaft 3, a positioning groove 14 recessed towards the inside of the movable half claw 12 is formed on one end surface of the movable half claw 12 away from the intermediate coupling shaft 3, the positioning tooth 13 can be embedded into the positioning groove 14 by rotating the movable half claw 12, and at the moment, a gap 15 is formed between the fixed half claw 11 and the movable half claw 12. The positioning teeth 13 of the present invention are inserted into the positioning grooves 14 with gaps 15, so that damage to the common bile duct can be prevented in the laparoscopic hepatectomy.

Preferably, the width of the gap 15 is 5 mm. The 5mm width reservation can simultaneously give consideration to the clamping effect and prevent the tissue damage.

Referring to fig. 1 and 2, the end of the binding clip assembly 1 away from the intermediate connecting shaft 3 is bent downward.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although the terms of the jaw assembly 1, the handle assembly 2, the intermediate coupling shaft 3, the connecting assembly 4, the fixed jaw half 11, the articulating jaw half 12, the positioning teeth 13, the positioning recesses 14, the gap 15, the fixed handle 21, the articulating handle 22, the driving swivel 41, the driven swivel 42, the first articulation point 43, the first driving point 44, the second articulation point 45, the second driving point 46, etc., are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a pincers are blocked to peritoneoscope liver pedicle of a vertebral arch, includes binding clip subassembly (1) and handle components (2) that can drive binding clip subassembly (1) degree of opening and shutting and change, its characterized in that: an intermediate connecting shaft (3) made of rigid materials is further arranged between the forceps head assembly (1) and the handle assembly (2), one end of the intermediate connecting shaft (3) is connected with the forceps head assembly (1), and the other end of the intermediate connecting shaft is connected with the handle assembly (2).

2. The laparoscopic liver pedicle blocking clamp as claimed in claim 1, wherein: binding clip subassembly (1) including with middle fixed half claw (11) of linking axle (3) fixed connection and with middle loose joint half claw (12) of linking axle (3) rotation connection, rotate the degree of opening and shutting of half claw (12) in order to change binding clip subassembly (1) of loose joint, handle subassembly (2) include with middle fixed handle (21) of linking axle (3) fixed connection and with middle loose joint handle (22) of linking axle (3) rotation connection, be connected through coupling assembling (4) between loose joint handle (22) and the loose joint half claw (12), rotate loose joint handle (22) accessible coupling assembling (4) and drive the rotation of half claw (12) of loose joint.

3. The laparoscopic pedicle blocking forceps according to claim 2, wherein: middle even axle (3) is the smooth hollow pipe body in surface, coupling assembling (4) set up inside middle even axle (3).

4. The laparoscopic pedicle blocking forceps according to claim 2, wherein: coupling assembling (4) are including the driven commentaries on classics piece (42) of initiative commentaries on classics piece (41) and fixed connection on loose joint half claw (12) on fixed connection loose joint handle (22), the piece (41) are changeed in the initiative and all rotate with middle even axle (3) with driven commentaries on classics piece (42) and are connected, rotate the piece (41) that the initiative changes and can drive driven commentaries on classics piece (42) and rotate.

5. The laparoscopic liver pedicle blocking clamp as claimed in claim 4, wherein: the driving rotating block (41) is provided with a first switching point (43) and a first driving point (44), and the driving rotating block (41) is rotatably connected with the middle connecting shaft (3) through the first switching point (43); be equipped with second switching position point (45) and second drive position point (46) on driven commentaries on classics piece (42), driven commentaries on classics piece (42) are connected with middle even axle (3) rotation through second switching position point (45), first drive position point (44) are connected through articulated rod drive with second drive position point (46).

6. The laparoscopic pedicle blocking forceps according to claim 5, wherein: the first interface point (43) is closer to the articulating handle (22) than the first drive point (44), and the second drive point (46) is closer to the articulating jaw half (12) than the second interface point (45).

7. The laparoscopic pedicle blocking forceps according to claim 2, wherein: the fixed handle (21) and the loose joint handle (22) are mutually locked through a locking tooth structure (23).

8. The laparoscopic pedicle blocking forceps according to claim 2, wherein: fixed half claw (11) keep away from the protruding location tooth (13) that has of the one end surface of middle even axle (3), loose joint half claw (12) keep away from the one end surface of middle even axle (3) and have to the inside sunken location groove (14) of loose joint half claw (12), rotate loose joint half claw (12) and can make location tooth (13) imbed to location groove (14) in, and this moment, have clearance (15) between fixed half claw (11) and loose joint half claw (12).

9. The laparoscopic pedicle blocking forceps according to claim 8, wherein: the width of the gap (15) is 5 mm.

10. The laparoscopic liver pedicle blocking clamp as claimed in claim 1, wherein: one end of the forceps head assembly (1) far away from the middle connecting shaft (3) is bent downwards.