CN203852405U - Built-in grasper of interventional catheter for minimally invasive surgery - Google Patents

Abstract

The utility model discloses a built-in gripper for minimally invasive surgery interventional catheter, which consists of an expandable gripper head, a spring connection point, an interventional catheter, an inner guide wire, a fixed top wire, an inner shaft rod, a spring, and a fixed pin in an inner groove. , rear handle, supporting spring, front handle, and handle connection shaft; before use, cooperate with electronic imaging, cold light source, and electrocoagulation system, first retract the expandable grasper head into the interventional catheter, insert the interventional catheter into the human body, By controlling the front handle and the front handle, the inner guide wire is driven to send the expandable grasper head out of the interventional catheter, and the expandable grasper head expands under the action of the spring connection point at the rear to perform internal grasping operations , and brought into the interventional catheter; it has the advantages of simple operation, safety and reliability, and is an ideal surgical instrument in minimally invasive surgery.

Description

A minimally invasive surgical intervention catheter built-in grasping forceps

technical field

The invention relates to the technical field of surgical instruments, in particular to a grasper built into a minimally invasive surgical intervention catheter.

Background technique

Minimally invasive medicine is a medicine developed in the 21st century. Minimally invasive surgery uses modern advanced electronic imaging, cold light source, electrocoagulation system and other technologies, and uses electronic mirror imaging instead of direct vision with the naked eye, and slender endoscopic instruments instead. The traditional scalpel strives to complete the diagnosis and treatment of lesions in the body with the smallest incision path. With the development of minimally invasive medical technology, minimally invasive surgical instruments are constantly innovating. However, when doing minimally invasive surgery with special requirements, if you need to use grasping forceps, traditional surgical grasping forceps are not suitable for use, which brings certain inconvenience to the operation.

Contents of the invention

The present invention provides a built-in grasper for minimally invasive surgery interventional catheter, which uses a built-in expandable grasper head in the front of the interventional catheter, controlled by a front handle and a rear handle, so as to achieve the purpose of grasping the intracavity of minimally invasive surgery.

In order to achieve the above object, the technical solution of the present invention is: a minimally invasive surgical interventional catheter built-in grasper consists of an expandable grasper head, a spring connection point, an interventional catheter, an inner guide wire, a fixed top wire, an inner shaft, It is composed of spring, fixed pin in inner groove, rear handle, supporting spring piece, front handle, and handle connecting shaft; the interventional catheter is equipped with an expandable gripper head with spring connection point, the rear part of the interventional catheter is connected with the upper part of the front handle, and the front handle An inner hollow tube channel is set inside the upper part, and an inner shaft is arranged inside the inner hollow tube channel. The front handle and the rear handle are connected by the handle connecting shaft, and a supporting spring is set between the front handle and the rear handle; an inner guide wire is set inside the interventional catheter , the front part of the inner guide wire is connected to the spring connection point of the expandable gripper head, the front part of the inner shaft rod in the upper part of the rear front handle is connected, and the rear part of the inner shaft rod passes through the inner hollow tube channel of the front handle and the rear handle The inner groove on the upper part is connected with the fixed pin, and a spring is provided outside the inner shaft of the front handle and the rear handle, which is the built-in grasper of the catheter for minimally invasive surgery.

The beneficial effects of the present invention are: before use, cooperate with electronic imaging, cold light source, and electrocoagulation system, retract the expandable grasping forceps head into the interior of the interventional catheter, insert the interventional catheter into the human body, and control the front handle and the front handle, Drive the inner guide wire to send the expandable grasper head out of the interventional catheter, and the expandable grasper head expands and opens the grasper head under the action of the spring connection point at the rear to implement the grasping operation in the body, and put it into the interventional catheter and take it out; With the advantages of simple operation, safety and reliability, it is an ideal surgical instrument in minimally invasive surgery.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

The accompanying drawing is a schematic diagram of a grasper built into a minimally invasive surgical intervention catheter.

In the figure: 1. Expandable gripper head, 2. Spring connection point, 3. Interventional catheter, 4. Inner guide wire, 5. Fixed top wire, 6. Inner shaft rod, 7. Spring, 8. Inner groove fixed Pin, 9, rear handle, 10, support spring leaf, 11, front handle, 12, handle connecting shaft.

Detailed ways

As shown in the accompanying drawings, a minimally invasive surgery interventional catheter built-in grasper consists of an expandable grasper head 1, a spring connection point 2, an interventional catheter 3, an inner guide wire 4, a fixed top wire 5, an inner shaft 6, a spring 7. Inner groove fixed pin 8, rear handle 9, support spring 10, front handle 11, handle connecting shaft 12; intervention catheter 3 is provided with expandable grasping forceps head 1 with spring connection point 2, after intervention catheter 3 The upper part of the front handle 11 is connected with the upper part of the front handle 11. An inner hollow pipe passage is arranged inside the front handle 11. An inner shaft rod 6 is arranged inside the inner hollow pipe passage. The front handle 11 and the rear handle 9 are connected by a handle connecting shaft 12. A supporting spring piece 10 is provided between the handles 9; an inner guide wire 4 is arranged inside the intervention catheter 3, and the front part of the inner guide wire 4 is connected to the spring connection point 2 of the expandable grasper head, and the rear part is connected to the upper part of the front handle 11. The front part of the inner shaft 6 is connected, and the rear part of the inner shaft 6 passes through the inner hollow tube channel of the front handle 11 and is connected with the inner groove fixing pin 8 on the upper part of the rear handle 9, and the inner shaft of the front handle 11 and the rear handle 9 The outside of the 6 is provided with a spring 7, which is a built-in grasping forceps for minimally invasive surgery intervention catheters.

As mentioned above, the embodiment is only a description of the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. On the premise of not departing from the spirit of the technology of the present invention, engineers and technicians in the field make various technical solutions of the present invention All such modifications and improvements should fall within the scope of protection defined by the claims of the present invention.

Claims (2)

1. A built-in grasper for minimally invasive surgery interventional catheter, which is characterized by: an expandable grasper head, a spring connection point, an interventional catheter, an inner guide wire, a fixed top wire, an inner shaft rod, a spring, and a fixed pin in an inner groove Composed of sub, rear handle, supporting spring, front handle, and handle connection shaft; the interventional catheter is equipped with an expandable gripper head with a spring connection point, the rear part of the interventional catheter is connected to the upper part of the front handle, and an inner hollow tube is set inside the front handle channel, the inner hollow tube channel is provided with an inner shaft, the front handle and the rear handle are connected by a handle connecting shaft, and a supporting spring is provided between the front handle and the rear handle. 2. The built-in grasper of a minimally invasive surgery interventional catheter according to claim 1, characterized in that: an inner guide wire is arranged inside the interventional catheter, and the front part of the inner guide wire is connected to the spring connection point of the expandable grasper head, The front part of the inner shaft in the upper part of the front handle is connected at the front, and the rear part of the inner shaft passes through the inner hollow tube channel of the front handle and is connected with the inner groove fixing pin on the upper part of the rear handle, and the inner shaft of the front handle and the rear handle There are springs on the outside.