CN211094499U

CN211094499U - High-flux laparoscope separating forceps

Info

Publication number: CN211094499U
Application number: CN201921296686.8U
Authority: CN
Inventors: 刘飞德
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-07-28
Anticipated expiration: 2029-08-09

Abstract

The utility model relates to a high flux peritoneoscope separation clamp, including the tong pole that the inside shaping has the cavity, the one end of tong pole is connected with the binding clip that equals with the tong pole external diameter, the other end of tong pole is equipped with the handle, the binding clip includes movable part and fixed part, the one end of movable part articulates in the tip of tong pole, the fixed part inside also forms the cavity, set up the suction hole with inside intercommunication on the outer wall of fixed part, the top surface of fixed part and the bottom surface shaping of movable part are the plane of mutually supporting; the other end of the clamp rod is hermetically connected with a water inlet pipe and a suction pipe, the water inlet pipe is connected with a water supply device, the suction pipe is connected with a suction device, and a driving assembly is arranged in the clamp rod. The utility model discloses the flux is big, and the attraction ability is strong, attracts the difficult jam of passageway.

Description

High-flux laparoscope separating forceps

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to high flux peritoneoscope separation pincers.

Background

Laparoscopic surgery is a newly developed minimally invasive method and is a necessary trend for the development of future surgical methods. With the rapid advance of industrial manufacturing technology, the fusion of related disciplines lays a firm foundation for the development of new technology and new method, and the more and more skillful operation of doctors makes many of the past open operations replaced by the intracavitary operations, thereby greatly increasing the operation selection opportunities. The traditional method of the retrolaparoendoscopic surgery is to make three small 1 cm incisions on the waist of a patient, insert a tubular working channel called trocar respectively, and carry out all the following operations through the three channels; and then special lengthened surgical instruments are used for completing the same steps as the open surgery under the television monitoring, so that the same surgical effect is achieved.

Chinese patent CN109498113A discloses a laparoscope separating forceps with a suction function, which comprises a hollow forceps rod and a fixed forceps handle provided with a negative pressure channel, wherein the bottom end of the negative pressure channel is connected with a negative pressure suction apparatus, and the head part of the hollow forceps rod is provided with a first blood leading hole; the improved laparoscope separating forceps have the functions of the separating forceps and the aspirator simultaneously, can meet the functional requirements of bleeding suction and tumor separation in an operation without replacing instruments, reduces the operation difficulty, reduces the damage to a patient caused by repeatedly replacing the instruments in the operation, shortens the operation time, is favorable for accelerating the operation process, and shortens the time of kidney heat ischemia in the operation.

However, in actual medical activities, the size of the laparoscopic separation forceps is limited, so that the size of the negative pressure channel formed in the separation forceps is limited, the suction capacity of the negative pressure channel is very limited, and tissues separated in the abdominal cavity are particularly easy to block blood drinking holes, even a forceps rod or the negative pressure channel, which is not only unfavorable for the implementation of the operation, but also influences the subsequent disinfection treatment.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a high flux peritoneoscope separating forceps has the function of centre gripping and cutting simultaneously, and concrete scheme is as follows:

the clamp comprises a clamp rod, wherein a cavity is formed in the clamp rod, one end of the clamp rod is connected with a clamp head, the outer diameter of the clamp head is equal to that of the clamp rod, the other end of the clamp rod is provided with a handle, the clamp head comprises a movable part and a fixed part, one end of the movable part is hinged to the end part of the clamp rod, the cavity is formed in the fixed part, the outer wall of the fixed part is provided with a suction hole communicated with the inside, and the top surface of the fixed part and the bottom surface of the movable part are formed into mutually matched planes; the other end of the clamp rod is hermetically connected with a water inlet pipe and a suction pipe, the water inlet pipe is connected with a water supply device, the suction pipe is connected with a suction device, and a driving assembly is arranged in the clamp rod.

Further, the area ratio of the cross sections of the movable part and the fixed part is 1: 6.

furthermore, the top surface of the fixed part is provided with a through groove which is axially arranged, the movable part comprises a working section and a connecting section which are perpendicular to each other, the working section is formed into a structure matched with the fixed part, and the connecting section is formed into a slender rod shape; the joint of the working section and the connecting section is hinged to the end part of the clamp rod, and the connecting section extends into the fixing part through the through groove.

Furthermore, a piston is arranged at one end of the internal cavity of the clamp rod, which is close to the handle, and the driving assembly comprises an internal driving rod which is arranged in the internal cavity of the clamp rod along the axial direction; the inner driving rod is positioned below the central shaft of the clamp rod, one end of the inner driving rod is hinged to the lower end of the connecting section, and the other end of the inner driving rod is hinged to the inner side surface of the piston.

Further, a wrench is hinged to the handle, an outer driving rod parallel to the inner driving rod is hinged to the wrench, and the tail end of the outer driving rod is connected to the outer side face of the piston after being bent.

Furthermore, the clamp rod is connected with the handle through a first bearing, the first bearing is sleeved outside the clamp rod, the inner ring of the first bearing is fixedly connected with the clamp rod, and the outer ring of the first bearing is fixedly connected with the handle; the outer side surface of the piston is connected with a second bearing which is coaxial with the piston through a bearing seat, and the outer driving rod penetrates through the inner ring of the second bearing and is fixedly connected with the inner ring.

Furthermore, an adjusting ring is sleeved on the outer wall of the clamp rod, and a plurality of spherical grooves which are uniformly distributed along the circumference are arranged on the side surface of the adjusting ring opposite to the handle; the handle is connected with an adjusting arm, the adjusting arm is connected with a spring plunger, and a column head of the spring plunger is propped against the adjusting ring and is matched with the spherical groove.

Furthermore, the piston is provided with a first axial through hole and a second axial through hole, the first through hole and the second through hole are respectively used for connecting the water inlet pipe and the suction pipe, and the water inlet pipe and the suction pipe are respectively internally provided with a first valve and a second valve.

Further, the cutting assembly comprises a first blade formed on one side, opposite to the piston, of the connecting section, and a second blade matched with the first blade is formed at one end, hinged to the connecting section, of the inner driving rod.

Further, an end surface of the fixing portion is formed as a slope.

The beneficial effects of the utility model reside in that: the utility model provides a high flux peritoneoscope separation pincers, the flux is big, and the suction capacity is strong, attracts the difficult jam of passageway.

Drawings

FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention,

fig. 2 is a schematic structural diagram I (side view direction) of the binding clip according to embodiment 1 of the present invention,

fig. 3 is a schematic structural view II (front view direction) of the binding clip according to embodiment 1 of the present invention,

FIG. 4 is a schematic structural view of a fixing portion of embodiment 1 of the present invention,

fig. 5 is a schematic structural view of a movable part in embodiment 1 of the present invention,

fig. 6 is a schematic structural view of a first blade and a second blade according to embodiment 1 of the present invention (a bottom view of an inner driving lever in fig. 5),

fig. 7 is a schematic view showing the connection between the drive rod and the piston in embodiment 1 of the present invention,

fig. 8 is a schematic view I of the working state of the embodiment 1 of the invention (the clamp heads are closed),

fig. 9 is a schematic view II of the working state of embodiment 1 of the present invention (with the binding clip open),

figure 10 is a schematic view showing the connection between the handle and the jaw bar according to embodiment 2 of the present invention,

fig. 11 is a schematic view I of the connection between the outer driving rod and the piston according to embodiment 2 of the present invention,

fig. 12 is a schematic view II of the connection between the outer driving rod and the piston according to embodiment 2 of the present invention.

Figure number and name: 1. the clamp comprises a clamp rod, 2, a clamp head, 201, a movable part, 202, a fixed part, 203, a through groove, 204, a working section, 205, a connecting section, 3, a handle, 301, a wrench, 302, an outer driving rod, 4, a suction hole, 5, a driving assembly, 501, an inner driving rod, 6, a first knife edge, 602, a second knife edge, 7, a piston, 701, a first through hole, 702, a second through hole, 8, a first bearing, 9, a bearing seat, 10, a second bearing, 11, an adjusting ring, 1101, a spherical groove, 12, an adjusting arm, 1201, a spring plunger, 13, a water inlet pipe, 14 and a suction pipe.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, which are provided only for explaining the present invention and are not intended to limit the scope of the present invention.

Example 1

Referring to fig. 1-3, a high-flux laparoscope separating forceps comprises a forceps rod 1, a cavity is formed in the forceps rod 1, one end of the forceps rod 1 is connected with a forceps head 2, the outer diameter of the forceps rod 1 is equal to that of the forceps head 2, the other end of the forceps rod 1 is provided with a handle 3, the forceps head 2 comprises a movable portion 201 and a fixed portion 202, one end of the movable portion 201 is hinged to the end portion of the forceps rod 1, the cavity is also formed in the fixed portion 202, and a suction hole 4 communicated with the interior is formed in the outer wall of the fixed portion 202; the top surface of the fixed portion 202 and the bottom surface of the movable portion 201 are formed as flat surfaces that fit each other; the area ratio of the sections of the movable portion 201 and the fixed portion 202 is 1:6, in order to prevent the fixed part from being blocked by large-volume tissues during the suction process and ensure the patency of the fixed part, the sectional area of the fixed part needs to be made as large as possible, but because the forceps head of the laparoscopic separation forceps is small in size (the diameter is generally between 5mm and 10 mm), when the ratio of the sectional areas of the movable part and the fixed part is less than 1:6, the strength of the movable part is not enough to support the clamping action of the separation forceps. The end surface of the fixing portion 202 is formed as an inclined surface, which facilitates the entry of the forceps head into the abdominal cavity during laparoscopic surgery.

With reference to fig. 4 and 5, the top surface of the fixed portion 202 is provided with an axially disposed through slot 203 (the size of the through slot is as large as possible and at least larger than the size of the suction hole on the premise of ensuring that the clamping action can be smoothly performed), the movable portion 201 includes a working section 204 and a connecting section 205 which are perpendicular to each other, the working section 204 is formed into a structure which is matched with the fixed portion 202, when the working section and the fixed portion are tightly attached, the external size of the working section is matched with the forceps rod, the top end of the separation forceps is not influenced to enter the abdominal cavity, and the connecting section 205 is formed into a thin rod shape, which hardly influences the flow of drainage fluid in the cavity; the joint of the working section 204 and the connecting section 205 is hinged to the end of the clamp lever 1, and the connecting section 205 extends into the fixing portion 202 through the through slot 203.

Referring to fig. 7 to 9, a driving assembly is disposed in the forceps rod 1 for rotating the movable portion around the hinge to perform a grasping action, a piston 7 is disposed at an end of the internal cavity of the forceps rod 1 close to the handle 3, and the driving assembly 5 includes an inner driving rod 501 disposed in the internal cavity of the forceps rod 1 and arranged along the axial direction; the inner driving rod 501 is located below the central shaft of the clamp lever 1, one end of the inner driving rod 501 is hinged to the lower end of the connecting section 205, and the other end of the inner driving rod 501 is hinged to the inner side surface of the piston 7. When the piston 7 moves in the internal cavity of the tong rod, the working section can be driven by the internal driving rod to rotate around the hinge joint so as to open and close the tong head (as shown in fig. 8 and 9, two limit positions of the piston movement are respectively shown).

A wrench 301 is hinged on the handle 3, an outer driving rod 302 parallel to the inner driving rod 501 is hinged on the wrench 301, the tail end of the outer driving rod 302 is connected to the outer side surface of the piston 7 after being bent, and two ends of the outer driving rod are integrally formed into a side n-shaped structure in parallel. The operating wrench is provided with a resetting device, as shown in fig. 6 and 7, a spring is arranged between the upper end of the wrench and the handle, so that the wrench is in a normally open state, and at the moment, the piston is positioned at a left limit position, namely, the binding clip is in an open state; the operator realizes the piston through pressing the spanner and moves to the right, and the binding clip can close gradually promptly, can accomplish the action of getting, realizes conventional operation action.

The piston 7 is provided with a first axial through hole 701 and a second axial through hole 702, the first through hole 701 and the second axial through hole 702 are respectively used for connecting the water inlet pipe 13 and the suction pipe 14, and the water inlet pipe 13 and the suction pipe 14 are respectively provided with a first valve 703 and a second valve 704. Can wash the appointed position in the abdominal cavity through the water injection pipe in to the tong bar water injection, then through drawing the liquid, the gas that produce in will performing the operation even organize to get into the tong bar through drawing the hole and then be drawn outside by the aspirator.

Referring to fig. 6, a first blade 601 is formed on a side of the connecting section 205 facing away from the piston 7, and a second blade 602 is formed on an end of the inner driving rod 501 hinged to the connecting section 205 and engaged with the first blade 601. When tissue fragments entering the clamp rod from the suction hole are large, an operator can repeat the opening and closing actions of the clamp head, so that the first cutting edge and the second cutting edge reciprocate for multiple times in the clamp rod along the axial direction, and the large tissue fragments are manually cut to prevent the tissue fragments from blocking a cavity in the clamp rod; when the suction holes on the fixing part are blocked by tissue fragments, the forceps head can be kept in a normally open state, and the through groove on the top surface of the fixing part can be used as a spare suction hole to lead out large tissue fragments.

In addition, in the operation process or the later disinfection process, if a large amount of tissue fragments are blocked in the front of the first cutting edge and the second cutting edge and cling to the cutting edges, so that the tissue fragments are not cut easily, an operator can close the two valves on the piston, then repeatedly press the wrench for multiple times, so that the piston reciprocates in the clamp rod for multiple times, the blocked tissue fragments are forced to move in the clamp rod by the principle of the injection cylinder so as to be cut by the cutting edges, and after the blockage is relieved, the valves are opened to drain the blocked tissue fragments out of the clamp rod.

The working process of the embodiment is as follows:

firstly, an operator holds the handle with the right hand, presses the wrench with the index finger of the right hand to enable the binding clip to be in a closed state, and stretches the binding clip into the body of a patient to carry out conventional operation (the binding clip of the wrench is loosened to be opened, and the binding clip of the wrench is pressed to be closed to realize normal clamping action); when drainage in the abdominal cavity of a patient is needed, the right hand continues to hold the handle (the wrench can be not pressed to enable the forceps head to be in an open state), the left hand firstly controls the first valve to enable water to enter the abdominal cavity of the patient through the forceps rod, then the first valve is closed, the second valve is opened, the suction apparatus is utilized to enable the interior of the forceps rod to be in a negative pressure state to start drainage, and when drainage is not smooth, an operator can repeat opening and closing actions of the forceps head for many times to enable drainage to be smooth until drainage is finished; after the operation is finished, the right index finger presses the wrench to enable the binding clip to be in a closed state, and the binding clip is taken out of the body of the patient.

Example 2

Referring to fig. 10 and 11, the present embodiment is different from embodiment 1 in that: the clamp rod 1 is connected with the handle 3 through a first bearing 8, the first bearing 8 is sleeved outside the clamp rod 1, the inner ring of the first bearing 8 is fixedly connected with the clamp rod 1, and the outer ring of the first bearing 8 is fixedly connected with the handle 3; the outer side surface of the piston 7 is connected with a second bearing 10 which is coaxial with the piston 7 through a bearing seat 9, and the outer driving rod 302 penetrates through the inner ring of the second bearing 10 and is fixedly connected with the inner ring, so that the piston can rotate along with the clamp lever while the outer driving rod is connected with the piston.

Referring to fig. 10 and 12, an adjusting ring 11 is further sleeved on the outer wall of the forceps rod 1, and a plurality of spherical grooves 1101 uniformly arranged along the circumference are formed in the side surface of the adjusting ring 11 opposite to the handle 3; an adjusting arm 12 is connected to the handle 3, a spring plunger 1201 is connected to the adjusting arm 12, and a column head of the spring plunger 1201 abuts against the adjusting ring 11 and is matched with the spherical groove 1101.

An operator can toggle the adjusting ring through a thumb of the right hand to realize that the clamp rod rotates around the central shaft, so that the working direction of the clamp head is adjusted, and due to the structure of the spring plunger and the spherical groove, the rotation of the clamp rod has certain self-locking performance, and the safety and stability during operation implementation can be ensured.

For embodiment 1, this embodiment has increased an angle modulation structure outside the binding clip for the working direction of binding clip can be adjusted according to the operation demand (the absorption direction that leads to the groove also is adjusted simultaneously when the binding clip is opened, can carry out nimble operation according to the drainage position, avoids the unclean problem of drainage).

In summary, the preferred embodiments of the present invention are only examples, and the scope of the present invention is not limited thereto, and all equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the specification are within the scope covered by the present invention.

Claims

1. The utility model provides a high flux peritoneoscope separation pincers, includes that inside shaping has claw beam (1) of cavity, the one end of claw beam (1) be connected with binding clip (2) that claw beam (1) external diameter equals, the other end of claw beam (1) is equipped with handle (3), binding clip (2) are including movable part (201) and fixed part (202), the one end of movable part (201) articulate in the tip of claw beam (1), its characterized in that: a cavity is also formed in the fixed part (202), a suction hole (4) communicated with the inside is formed in the outer wall of the fixed part (202), and the top surface of the fixed part (202) and the bottom surface of the movable part (201) are formed into mutually matched planes; the other end of the clamp rod (1) is sealed and is connected with a water inlet pipe (13) and a suction pipe (14), the water inlet pipe (13) is connected with a water supply device, the suction pipe (14) is connected with a suction device, and a driving assembly (5) is arranged in the clamp rod (1).

2. The high throughput laparoscopic detachment forceps of claim 1, wherein: the area ratio of the cross sections of the movable part (201) and the fixed part (202) is 1: 6.

3. the high throughput laparoscopic detachment forceps of claim 1, wherein: the top surface of the fixed part (202) is provided with a through groove (203) which is axially arranged, the movable part (201) comprises a working section (204) and a connecting section (205) which are perpendicular to each other, the working section (204) is formed into a structure matched with the fixed part (202), and the connecting section (205) is formed into a thin rod shape; the joint of the working section (204) and the connecting section (205) is hinged to the end of the clamp rod (1), and the connecting section (205) extends into the fixing part (202) through the through groove (203).

4. The high throughput laparoscopic separation forceps of claim 3, wherein: a piston (7) is arranged at one end of the internal cavity of the forceps rod (1) close to the handle (3), and the driving assembly (5) comprises an inner driving rod (501) which is arranged in the internal cavity of the forceps rod (1) along the axial direction; the inner driving rod (501) is located below a central shaft of the clamp rod (1), one end of the inner driving rod (501) is hinged to the lower end of the connecting section (205), and the other end of the inner driving rod (501) is hinged to the inner side face of the piston (7).

5. The high throughput laparoscopic detachment forceps of claim 4, wherein: articulated on handle (3) have spanner (301), articulated on spanner (301) have with interior actuating lever (501) parallel outer actuating lever (302), connect after buckling in the terminal of outer actuating lever (302) in the lateral surface of piston (7).

6. The high throughput laparoscopic separation forceps of claim 5, wherein: the clamp rod (1) is connected with the handle (3) through a first bearing (8), the first bearing (8) is sleeved outside the clamp rod (1), the inner ring of the first bearing (8) is fixedly connected with the clamp rod (1), and the outer ring of the first bearing (8) is fixedly connected with the handle (3); the outer side surface of the piston (7) is connected with a second bearing (10) which is coaxially arranged with the piston (7) through a bearing seat (9), and the outer driving rod (302) penetrates through the inner ring of the second bearing (10) and is fixedly connected with the inner ring.

7. The high throughput laparoscopic detachment forceps of claim 6, wherein: the outer wall of the forceps rod (1) is further sleeved with an adjusting ring (11), and a plurality of spherical grooves (1101) which are uniformly distributed along the circumference are formed in the side face, opposite to the handle (3), of the adjusting ring (11); an adjusting arm (12) is connected to the handle (3), a spring plunger (1201) is connected to the adjusting arm (12), and a column head of the spring plunger (1201) abuts against the adjusting ring (11) and is matched with the spherical groove (1101).

8. The high throughput laparoscopic detachment forceps of claim 4, wherein: the piston (7) is provided with a first axial through hole (701) and a second axial through hole (702), the first through hole (701) and the second through hole (702) are respectively used for connecting the water inlet pipe (13) and the suction pipe (14), and a first valve (703) and a second valve (704) are respectively arranged in the water inlet pipe (13) and the suction pipe (14).

9. The high throughput laparoscopic detachment forceps of claim 4, wherein: the connecting section (205) is back to a first blade (6) formed on one side of the piston (7), and one end, hinged to the connecting section (205), of the inner driving rod (501) is formed into a second blade (601) matched with the first blade (6).

10. The high throughput laparoscopic detachment forceps of claim 1, wherein: the end face of the fixing portion (202) is formed as a slope.