CN102178560A - Magnetic auxiliary tensioning device for single-pore laparoscope - Google Patents

Abstract

A magnetically assisted pulling device for a single-port laparoscope, comprising an external electromagnet capable of adjusting the magnetic force, and an internal magnet matching the external electromagnet. The bottom of the internal magnet is connected with a semicircular Ring, the traction wire passes through the semicircular ring, and one end of the traction wire is connected to a non-magnetic titanium alloy clamp; when performing single-port laparoscopic surgery, the traction wire can pass through the semicircular ring and the abdominal poke opening to control it outside the body. The operator indirectly controls the traction of the gallbladder through the traction wire. In this way, the use of the traction wire improves the congestion of the single-hole instrument. The strength of the traction is controlled by the operator, which increases the flexibility of the operation. The traction direction is controlled by moving the electromagnet outside the abdominal wall. It can be adjusted by changing the position of the magnet in the abdominal wall, and it can be pulled in any direction within the range of 360°, which is more flexible in use and does not require additional wounds.

Description

A magnetically assisted pulling device for single-port laparoscopy

technical field

The invention belongs to the technical field of medical instruments, and in particular relates to a magnetic auxiliary pulling device for a single-port laparoscope.

Background technique

Minimally invasive surgical technology is an important trend in the development of today's surgical field, and its principle is to achieve the purpose of surgical treatment with a minimally invasive method. At present, laparoscopic technique has become the preferred operation method in cholecystectomy, appendectomy and other operations. Based on patients' higher requirements for wound beauty and doctors' pursuit of reducing the complications of abdominal wall incisions, reducing the number of incisions and adopting more dexterous operations have become the focus of minimally invasive surgeons. The device is the result of surgeons' pursuit of ultra-minimally invasive practice. After the transumbilical single-port laparoscopic device is introduced into the pneumoperitoneum through umbilical foramen, a puncture tube that can carry multiple operating channels is placed, and surgical instruments and lighting equipment are introduced through the operating channels. In order to complete the operation, the surgical specimen is taken out through the umbilical foramen. Since the surgical instruments that need to be placed in the abdominal cavity are concentrated in a single hole, there will be mutual entanglement, interference, and obstruction between the instruments, which will affect the stability of the image passing through the screen, affect the surgical anatomy, Flexibility in operations such as separation.

In order to solve the above problems, scholars at home and abroad have continuously improved the transumbilical single-port laparoscopic device. Simple solutions include lengthened instruments and laparoscopes, the use of angled or jointed instruments, and more use of different types of instruments during surgery. For small-diameter devices exceeding 5 mm, bendable endoscopes or endoscopes with simple light source right-angle adapters have been developed. But none of these methods can fundamentally solve the problem. At this time, some scholars proposed to reduce the number of instruments passing through the poking opening, and use suture fixation, 2-3mm microporous traction instruments, etc. to meet the requirements by adding additional wounds to pass through the abdominal wall. Does not match.

Contents of the invention

In order to overcome the deficiencies in the above-mentioned prior art, the object of the present invention is to provide a magnetically assisted pulling device for single-port laparoscopy. When performing single-port laparoscopic surgery, the traction wire can pass through the semicircular ring and the abdominal cavity In vitro control, the surgeon indirectly controls the traction of the gallbladder through the traction wire. In this way, the use of the traction wire improves the congestion of single-hole instruments. The strength of the traction is controlled by the surgeon, which increases the flexibility of the operation and the direction of traction. It can be adjusted by moving the electromagnet outside the abdominal wall to change the position of the magnet inside the abdominal wall, and it can be pulled in any direction within the range of 360°, which is more flexible in use and does not require additional wounds.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A magnetically assisted pulling device for a single-port laparoscope, comprising an external electromagnet 1 capable of adjusting magnetic force, and an internal abdominal magnet 2 compatible with the external electromagnet 1, the bottom of the internal abdominal magnet 2 is connected to There is a semicircular ring 3, a pull wire 4 passes through the semicircular ring 3, and one end of the pull wire 4 is connected to a non-magnetic titanium alloy clamp 5.

When performing single-port laparoscopic surgery, the traction wire can be controlled outside the body through the semicircular ring 3 and the abdominal poke opening, and the surgeon indirectly controls the traction of the gallbladder through the traction wire 4. In this way, the use of the traction wire 4 improves the single-port In the case of crowded holes, the force of traction is controlled by the operator, which increases the flexibility of the operation. The direction of traction can be adjusted by moving the electromagnet 1 outside the abdominal wall to change the position of the magnet 2 in the abdominal wall. It can be pulled in any direction within the range of 360° , the use is more flexible, and there is no need to add additional wounds.

Description of drawings

Fig. 1 is a schematic structural view of the present invention, wherein Fig. 1 (a) is a schematic structural view of an electromagnet outside the abdominal wall, and Fig. 1 (b) is a schematic diagram of the connection of a magnet, a semicircular ring and a traction wire in the abdominal wall.

Detailed ways

The present invention will be described in more detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the magnetic auxiliary pulling device of single-port laparoscope includes an external electromagnet 1 capable of adjusting the magnetic force, and also includes an internal magnet 2 in the abdominal wall that is compatible with the external electromagnet 1 of the abdominal wall. The bottom of the 2 is connected with a semicircular ring 3, the pulling wire 4 passes through the semicircular ring 3, and one end of the pulling wire 4 is connected with a non-magnetic titanium alloy clamp 5. The device adjusts the magnitude of the traction force by pulling the traction wire 4 by hand, which is called the "marionette" method. Multiple magnetic auxiliary traction devices can be used in one operation. Interfering with the operating space without additional wounds.

The working principle of the present invention is: in the single-hole laparoscopic operation, the magnet 2 in the abdominal wall, the pull wire 4 and the non-magnetic titanium alloy clamp 5 are used to enter the abdominal wall through the single-hole poke opening with a laparoscopic instrument, and the pull wire 4 The other end is left outside the body, and the abdominal wall inner magnet 2 is held by the laparoscopic operating instrument, which is matched with the outer abdominal wall electromagnet 1, and the magnetic force of the outer abdominal wall electromagnet 1 is adjusted to attract and fix the abdominal wall inner magnet 2 on the abdominal wall, and the laparoscope is used to operate the instrument Clamp the target tissue with the non-magnetic titanium alloy clamp 5, and the operator moves the electromagnet 1 outside the abdominal wall to change the position of the magnet 2 in the abdominal wall to control the direction of traction tissue. After the operation, the non-magnetic titanium alloy is removed through the laparoscopic operation instrument Clamp 5, and finally the magnet 2 in the abdominal wall, the traction wire 4 and the non-magnetic titanium alloy clamp 5 are taken out of the abdominal cavity through the single hole poking opening.

Claims (1)

1. A magnetically assisted pulling device for a single-port laparoscope, characterized in that: it comprises an external electromagnet (1) capable of adjusting magnetic force, and also includes an intra-abdominal magnet (2) compatible with the external electromagnet (1) of the abdominal wall ), the bottom of the magnet (2) in the abdominal wall is connected with a semicircular ring (3), the traction line (4) passes through the semicircle circle (3), and one end of the traction line (4) is connected with non-magnetic titanium Alloy jaws (5).

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