CN109330642B

CN109330642B - Auxiliary stretching device for endoscopic surgery

Info

Publication number: CN109330642B
Application number: CN201810878403.4A
Authority: CN
Inventors: 陈烨; 方登华; 郑立聪; 盛磊; 刘静
Original assignee: Qujing Second People Hospital; Yunnan Jingchuang Liquid Metal Thermal Control Technology R&d Co ltd
Current assignee: Qujing Second People Hospital; Yunnan Jingchuang Liquid Metal Thermal Control Technology R&d Co ltd
Priority date: 2018-08-03
Filing date: 2018-08-03
Publication date: 2020-05-01
Anticipated expiration: 2038-08-03
Also published as: CN109330642A

Abstract

The invention provides an auxiliary stretching device for endoscopic surgery, and relates to the technical field of medical instruments. It includes at least a set of extension piece, each group extension piece is including two flexible coils that set up relatively, liquid metal has been held in each flexible coil, the both ends and an external power supply electricity of each flexible coil are connected, the electric current direction that lets in two flexible coils in the same group extension piece is the same or opposite, when the electric current direction is the same, two flexible coils in the same group extension piece actuation mutually are draw in the state, when the electric current direction is opposite, two flexible coils in the same group extension piece repel each other and are the state of extending. According to the auxiliary stretching device for the endoscopic surgery, the two flexible coils in the same group of stretching pieces are supplied with current to generate a magnetic field, so that the change of the folding and unfolding states is realized, complications caused by pneumoperitoneum can be effectively avoided, an operator can conveniently and effectively remove aerial fog and bleeding generated by energy equipment, and the surgical range is expanded.

Description

Auxiliary stretching device for endoscopic surgery

Technical Field

The invention relates to the technical field of medical instruments, in particular to a flexible stretching device.

Background

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 laparoscopic surgery, as a newly developed minimally invasive surgery method, has the advantages of small wound, quick postoperative recovery, small abdominal incision scar and the like, and is popular with patients. Therefore, minimally invasive surgery is a general trend and pursuit of surgical development.

Laparoscopic surgery is a procedure in which a plurality of small incisions are made in different parts of the abdomen, and a camera lens and various special surgical instruments are inserted through the small incisions, and the operation is performed outside the body by using various surgical instruments. Currently, a pneumoperitoneum laparoscope mode is mostly adopted clinically, and if a patient is not suitable for pneumoperitoneum, the abdominal wall is suspended through operation mechanical equipment, so that laparoscopic surgery is completed. However, the pneumoperitoneum laparoscope mode adopted clinically is very easy to cause complications such as subcutaneous emphysema, pneumothorax, gas embolism and the like, so that the laparoscopic surgery has more risks.

Disclosure of Invention

Technical problem to be solved

The invention aims to provide an auxiliary stretching device for endoscopic surgery, which is used for realizing airless laparoscopic surgery and reducing the risk of the surgery.

(II) technical scheme

In order to solve the technical problem, the invention provides an endoscopic surgery auxiliary stretching device which comprises at least one group of stretching parts, wherein each group of stretching parts comprises two flexible coils which are oppositely arranged, liquid metal is contained in each flexible coil, two ends of each flexible coil are electrically connected with an external power supply, the directions of currents introduced into the two flexible coils in the same group of stretching parts are the same or opposite, when the directions of the currents are the same, the two flexible coils in the same group of stretching parts attract each other to be in a folded state, and when the directions of the currents are opposite, the two flexible coils in the same group of stretching parts repel each other to be in a stretched state.

The flexible coil is made of a flexible hose, and the liquid metal is subjected to oxidation treatment and then placed in the flexible hose after being vacuumized.

Wherein the flexible coil is helical.

Wherein the liquid metal is gallium or gallium-indium alloy or gallium-indium-tin alloy or bismuth-indium-tin alloy.

The power supply control module controls the output parameters of the external power supply according to the state change of the flexible coil.

The external power supply is positioned outside the human body, and the flexible coil is connected with the external power supply through a lead.

Wherein, two flexible coils in the same group of the stretching parts are connected together through flexible connecting materials.

Wherein the flexible connecting material is medical gauze or medical soft silica gel.

The flexible coil enters the part to be treated along the incision of the human body, an electromagnetic device is arranged outside the part to be treated, and the electromagnetic device is matched with the flexible coil so as to expand the operation space.

(III) advantageous effects

According to the auxiliary stretching device for the laparoscopic surgery, the current is supplied to the two flexible coils in the same group of stretching parts to generate the magnetic field, so that the change of the folding and unfolding states is realized, the pneumoperitoneum of the laparoscopic surgery and the mode that the surgical mechanical equipment suspends the abdominal wall are replaced, and the complications such as subcutaneous emphysema, pneumothorax, gas embolism and the like caused by the pneumoperitoneum are effectively avoided; the space opened by the flexible coil has good continuity and is not easy to disappear, so that an operator can conveniently and effectively remove aerial fog and bleeding generated by energy equipment; the operation without pneumoperitoneum is realized by the flexible coil, and the abdominal cavity pressure rise, diaphragm muscle upward shift, lung capacity reduction, inferior vena cava reflux compression, cardiac output reduction and the like can be caused in the operation process, so that the abdominal cavity operation can be applied to the patients with poor cardiopulmonary function and the patients who can not be anesthetized, and the operation range is expanded.

Drawings

FIG. 1 is a schematic structural view of an endoscopic surgery auxiliary stretching device according to an embodiment of the invention;

FIG. 2 is a schematic view of a connection structure of the flexible coil shown in FIG. 1;

FIG. 3 is a schematic structural view of another embodiment of the endoscopic surgery auxiliary stretching device.

In the figure: 1. a flexible coil; 2. a liquid metal; 3. an external power supply; 4. the site to be treated; 5. a wire; 6. a flexible connecting material; 7. an electromagnetic device.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, an auxiliary stretching device for endoscopic surgery comprises at least one group of stretching members, each group of stretching members comprises two flexible coils 1 which are oppositely arranged, liquid metal 2 is contained in each flexible coil 1, and two ends of each flexible coil 1 are electrically connected with an external power supply 3. The directions of currents introduced into the two flexible coils 1 in the same group of the extension pieces are the same or opposite. Specifically, under the action of alternating current provided by an external power supply 3, the liquid metal 2 in the flexible coils 1 is conductive, and if the directions of currents in two flexible coils 1 in the same group of stretching parts are the same, the two flexible coils 1 are mutually attracted to each other to be in a furled state; when the current directions in the two flexible coils 1 in the same group of the extension members are opposite, the two flexible coils 1 repel each other to be in an extension state.

According to the auxiliary stretching device for the laparoscopic surgery, the currents in different directions are supplied to the two flexible coils 1 in the same group of stretching parts, so that the change of the folding state and the unfolding state is realized, the mode that the abdominal wall is suspended by a laparoscopic surgery pneumoperitoneum and surgical mechanical equipment is replaced, the space expansion is realized in a specific space, and the complications such as subcutaneous emphysema, pneumothorax, gas embolism and the like caused by the pneumoperitoneum are effectively avoided. In addition, the space that flexible coil 1 propped up is lasting good, is difficult to disappear, makes things convenient for the operator effectively to clear away the aerial fog and the hemorrhage that energy equipment produced. In addition, the operation without pneumoperitoneum is realized by the flexible coil 1, which can cause the abdominal cavity pressure to rise, the diaphragm to move upwards, the lung capacity to decrease, the inferior vena cava reflux to be pressed, the cardiac output to decrease and the like in the operation process, thereby leading the abdominal cavity operation to be applied to the patients with poor cardiopulmonary function and the patients who can not be anesthetized, and expanding the operation range.

Specifically, the flexible coil 1 is made of a flexible hose, and the liquid metal 2 is subjected to oxidation treatment and then placed in the flexible hose after vacuum pumping. Wherein the flexible coil 1 is helical. The liquid metal 2 is low melting point metal such as gallium, gallium indium alloy, gallium indium tin alloy, bismuth indium tin alloy and the like.

In order to facilitate the control of the output state of the external power supply 3, a power supply control module is further provided, so that the output parameters of the external power supply 3, such as the current magnitude, the current direction, the change period and the like, can be adjusted according to the state change of the flexible coil 1.

Wherein, the external power supply 3 is positioned outside the human body, and the flexible coil 1 is connected with the external power supply 3 through a lead 5. When the endoscope is used, the flexible coil 1 enters a part 4 to be treated in a human body from a human body incision together with the endoscope and is electrically connected with an external power supply 3 through a longer lead 5.

Specifically, in the embodiment of the present invention, two flexible coils 1 in the same set of stent are connected together by a flexible connecting material 6 such as medical gauze and/or medical soft silica gel.

As shown in fig. 3, it is preferable to provide an electromagnetic device 7 outside the site 4 to be treated, which cooperates with the flexible coil 1 to further improve the spatial expansion.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides an auxiliary stretching device for endoscopic surgery, its characterized in that includes at least a set of extension piece, each group extension piece is including two flexible coils of relative setting, each liquid metal has been held in the flexible coil, each the both ends and an external power supply electricity of flexible coil are connected, same group two in the extension piece link together through flexible connecting material between the flexible coil, same group two in the extension piece the electric current direction that lets in the flexible coil is the same or opposite, and is the same as the electric current direction, same group two in the extension piece the flexible coil looks actuation is the folded state, and when the electric current direction is opposite, same group two in the extension piece the flexible coil is mutually exclusive and is the extension state.

2. The laparoscopic surgery assisted stretching device of claim 1, wherein said flexible coil is made of flexible hose, and said liquid metal is oxidized and then placed in said flexible hose after evacuation.

3. An laparoscopic surgery assisted stretching device according to claim 1 or 2, wherein said flexible coil is helical.

4. An endoscopic surgery assisted stretching device according to claim 1 or 2, wherein the liquid metal is gallium or gallium indium alloy or gallium indium tin alloy or bismuth indium tin alloy.

5. The laparoscopic surgery assisted extension device of claim 1, further comprising a power control module, wherein said power control module controls output parameters of said external power source according to state changes of said flexible coil.

6. The laparoscopic surgery assisted extension device according to claim 5, wherein said external power source is located outside the human body, and said flexible coil is connected to said external power source by a wire.

7. The laparoscopic surgery assisted stretching device of claim 1, wherein said flexible connecting material is medical gauze or medical soft silica gel.

8. The laparoscopic surgery auxiliary extension device according to claim 1, wherein the flexible coil enters the inside of the part to be treated along the incision of the human body, and an electromagnetic device is arranged outside the part to be treated and matched with the flexible coil so as to expand the operation space.