CN211911728U

CN211911728U - Reliable laparoscopic surgery pincers of structure

Info

Publication number: CN211911728U
Application number: CN202020283634.3U
Authority: CN
Inventors: 李洲
Original assignee: Zigong First Peoples Hospital
Current assignee: Zigong First Peoples Hospital
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-11-13
Anticipated expiration: 2030-03-09

Abstract

The utility model discloses a pair of laparoscope surgical forceps with reliable structure, which comprises a pair of forceps jaws and a forceps handle; the upper and lower jaws are movably connected with the connecting rod by a rotating shaft respectively; the inner side of the root part of the jaw is arc-shaped and is provided with teeth; the connecting rod is sleeved outside the outer pipe; the outer pipe can slide back and forth along the inner pipe; the outer walls of the upper side and the lower side of the front end of the outer tube are provided with teeth which are axially arranged and meshed with the teeth on the jaw; the forceps handle comprises an inner handle and an outer handle; the outer handle is a frame body, and the inner handle can slide back and forth in the inner cavity of the outer handle; the rear end of the outer tube is fixed on the inner handle, and the rear end of the inner tube penetrates through the inner handle and the outer handle and is provided with a joint; and a return spring is arranged between the inner handle and the outer handle. The laparoscopic surgery forceps with the structure utilize the meshed teeth as a mechanism for driving the jaws to open and close, and have the advantages of simple structure, few connecting points and low failure rate.

Description

Reliable laparoscopic surgery pincers of structure

Technical Field

The utility model relates to an operation forceps for laparoscopic surgery.

Background

Laparoscopic surgery is a minimally invasive surgery mode newly developed in recent years and is a necessary trend for the development of future surgery. With the development of scientific and technological means, doctors are more skillful to operate, and the laparoscopic surgery has the advantages of small surgical trauma, wide operation visual field, quick recovery of patients, light pain and the like, so that many past open surgeries are replaced by intracavitary surgeries. It is a representative of minimally invasive surgery, is widely applied in the surgical field, relates to a plurality of disease species and operations, and is popular among patients. Moreover, with the continuous progress of science and technology, the improvement and innovation of surgical instruments, and the application space of the laparoscope will be larger and larger.

The laparoscopic surgical forceps are tools for grasping tissues in abdominal cavities and are characterized in that a forceps jaw and a forceps handle are connected through a connecting rod, and the rear-end operation and the distal end clamping are realized. In order to achieve the purpose of remote operation, the existing laparoscopic surgery forceps utilize a multi-section connecting rod to connect a forceps handle and forceps jaws, and when the laparoscopic surgery forceps are used, the multi-section connecting rod is bent at an articulated part by pushing the connecting rod, so that the forceps jaws are opened and closed. However, due to the excessive number of connection points, the conventional forceps often fail to open and close the jaws normally.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a reliable laparoscopic surgery pincers, its simple structure, dependable performance.

In order to solve the technical problems, the technical proposal of the utility model is to adopt a laparoscope surgical forceps with reliable structure, which comprises a forceps jaw and a forceps handle; the upper and lower jaws are movably connected with the connecting rod by a rotating shaft respectively; the inner side of the root part of the jaw is arc-shaped and is provided with teeth; the connecting rod is sleeved outside the outer pipe; the outer pipe can slide back and forth along the inner pipe; the outer walls of the upper side and the lower side of the front end of the outer tube are provided with teeth which are axially arranged and meshed with the teeth on the jaw; the forceps handle comprises an inner handle and an outer handle; the outer handle is a frame body, and the inner handle can slide back and forth in the inner cavity of the outer handle; the rear end of the outer tube is fixed on the inner handle, and the rear end of the inner tube penetrates through the inner handle and the outer handle and is provided with a joint; and a return spring is arranged between the inner handle and the outer handle.

As an improvement, the inner handle is rod-shaped, and the inner cavity of the outer handle is rectangular; the upper inner wall and the lower inner wall of the inner cavity of the outer handle are provided with grooves, and two ends of the inner handle are clamped in the grooves.

As a further improvement, the joint is provided on the underside of the outer shank. Avoiding causing obstruction in holding.

As another further improvement, a three-way valve is arranged on the joint, one end of the three-way valve is connected with the joint, and the other two ends of the three-way valve are respectively connected with the negative pressure suction device and the flushing water pipe. The inner pipe is connected with the negative pressure suction device and the flushing water pipe and is prepared by a three-way valve. The suction port is opened when suction is needed, the flushing pipe is opened when flushing is needed, and flushing and negative pressure suction can be realized on the premise of not replacing the appliance.

As an improvement, the root of the jaw is provided with a hollow. The opening at the front end of the inner tube is exposed when the clamp jaws are closed through hollowing, and flushing and negative pressure suction can be performed at the same time.

As an improvement, the surface of the inner handle is provided with a depression convenient for fingers to hold. The inner handle is convenient to hold and drive to slide.

The utility model discloses an useful part lies in: the laparoscopic surgery forceps with the structure utilize the meshed teeth as a mechanism for driving the jaws to open and close, and have the advantages of simple structure, few connecting points and low failure rate. And the stability of clamping after the teeth are meshed with each other is also greatly improved. In addition, the existing laparoscopic surgical forceps generally adopt a handle type forceps handle, and the jaws and the arms are not on the same axis after being held. Since the laparoscopic forceps are visually operated through a laparoscope, the jaws and the arms are not on the same axis, so that the operation is difficult, and a certain time is required for adaptation. And this use is novel to adopt the design of interior outer handle, and the pincers jaw is located arm axle center extension line when holding, accords with ergonomic principle more, and the operation is got up and is also more handy.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the closed middle clamp jaw of the present invention.

Fig. 3 is an enlarged view of the j aws.

The labels in the figure are: the clamp comprises a connecting rod 1, a clamp jaw 2, an outer tube 3, an inner tube 4, an outer handle 5, an inner handle 6, a return spring 7, a three-way valve 8, a hollow part 9, teeth 10 and teeth 11.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the specific embodiments.

As shown in fig. 1, 2 and 3, the utility model comprises a clamp jaw 2 and a clamp handle; the clamp jaws 2 and the clamp handles are respectively arranged at the front end and the rear end of the connecting rod 1, the two clamp jaws 2 are arranged at the upper part and the lower part and are respectively movably connected with the connecting rod 1 by a rotating shaft; the inner side of the root part of the clamp jaw 2 is arc-shaped and is provided with teeth 10; the root of the clamp jaw 2 is provided with a hollow 9. The connecting rod is characterized by further comprising an inner tube 4 coaxial with the connecting rod 1, and an outer tube 3 is sleeved outside the inner tube 4; the outer tube 3 can slide back and forth along the inner tube 4; the outer walls of the upper and lower sides of the front end of the outer tube 4 are provided with teeth 11 which are axially arranged and meshed with the teeth 10 on the jaw 2; the forceps handles comprise an inner handle 6 and an outer handle 5; the outer handle 5 is a frame body, and the inner handle 6 can slide back and forth in the inner cavity of the outer handle 5; the rear end of the outer tube 3 is fixed on the inner handle 6, and the rear end of the inner tube 4 penetrates through the inner handle 6 and the outer handle 5 and is provided with a joint; and a return spring 7 is arranged between the inner handle 6 and the outer handle 5.

The inner handle 6 is rod-shaped, and the surface is provided with a depression convenient for fingers to hold. The inner cavity of the outer handle 5 is rectangular; the upper inner wall and the lower inner wall of the inner cavity of the outer handle 5 are provided with grooves, and the two ends of the inner handle 6 are clamped in the grooves.

The joint is arranged on the underside of the outer shank 5. The joint is provided with a three-way valve 8, one end of the three-way valve 8 is connected with the joint, and the other two ends of the three-way valve are respectively connected with a negative pressure suction device and a flushing water pipe.

In use, the operator holds his thumb behind the outer handle 5 and the other four fingers pass intermittently between the inner handle 6 and the outer handle 5 (the portion located in front of the inner handle 6). The outer tube 3 may be passed through a gap between the operator's index and middle fingers or between the middle and ring fingers, according to the operator's habit. In this case, the outer tube 3 and the front jaw 2 are substantially aligned with the axis of the arm, which makes the operation easier.

When the tissue needs to be clamped, the inner handle 6 moves backwards by gripping, the outer tube 3 is pulled to slide forwards and backwards, and the teeth 11 at the front end of the outer tube 3 are driven at the same time, so that the jaw 2 engaged with the outer tube rotates inwards to finally close. After the force is removed, the outer tube 3 slides forwards under the action of the return spring 7 to drive the jaws 2 to open.

The three-way valve 8 is respectively connected with the negative pressure suction device and the flushing water pipe, and corresponding channels are opened when flushing or negative pressure suction is needed.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims

1. A laparoscope surgical forceps with a reliable structure comprises a forceps jaw and a forceps handle; the front end and the rear end of the connecting rod are respectively arranged on the clamp jaws and the clamp handles, and the utility model is characterized in that: the two clamp jaws are arranged up and down and are respectively movably connected with the connecting rod by a rotating shaft; the inner side of the root part of the jaw is arc-shaped and is provided with teeth; the connecting rod is sleeved outside the outer pipe; the outer pipe can slide back and forth along the inner pipe; the outer walls of the upper side and the lower side of the front end of the outer tube are provided with teeth which are axially arranged and meshed with the teeth on the jaw; the forceps handle comprises an inner handle and an outer handle; the outer handle is a frame body, and the inner handle can slide back and forth in the inner cavity of the outer handle; the rear end of the outer tube is fixed on the inner handle, and the rear end of the inner tube penetrates through the inner handle and the outer handle and is provided with a joint; and a return spring is arranged between the inner handle and the outer handle.

2. A structurally sound laparoscopic forceps as claimed in claim 1, wherein: the inner handle is rod-shaped, and the inner cavity of the outer handle is rectangular; the upper inner wall and the lower inner wall of the inner cavity of the outer handle are provided with grooves, and two ends of the inner handle are clamped in the grooves.

3. A structurally sound laparoscopic forceps as claimed in claim 1, wherein: the joint is arranged on the lower side of the outer handle.

4. A structurally sound laparoscopic forceps as claimed in claim 1, wherein: the joint is provided with a three-way valve, one end of the three-way valve is connected with the joint, and the other two ends of the three-way valve are respectively connected with the negative pressure suction device and the flushing water pipe.

5. A structurally sound laparoscopic forceps as claimed in claim 1, wherein: the root of the clamp jaw is provided with a hollow part.

6. A structurally sound laparoscopic forceps as claimed in claim 1, wherein: the surface of the inner handle is provided with a depression convenient for fingers to hold.