CN215899837U - Intelligent sensing smoke exhaust system for laparoscopic surgery - Google Patents

Abstract

The utility model discloses an intelligent induction smoke exhaust system for laparoscopic surgery, which comprises a puncture sheath and a detection device, wherein the puncture sheath is provided with a near end close to an abdominal cavity and a far end far away from the abdominal cavity; the side wall of the puncture sheath is provided with a smoke outlet which is connected with a signal conversion device, a flow control valve for controlling smoke discharge is arranged in the signal conversion device, smoke discharge flow can be accurately adjusted, smoke generated by operation energy instruments (such as an ultrasonic knife) can be timely sucked away, and pneumoperitoneum pressure stability is guaranteed.

Description

Intelligent sensing smoke exhaust system for laparoscopic surgery

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an intelligent sensing smoke exhaust system for laparoscopic surgery.

Background

The laparoscopic surgery is a minimally invasive surgery performed by using related surgical instruments and a laparoscope, and has the advantages of small wound, few complications, quick recovery, low harm to patients and the like. As energy instruments (such as ultrasonic knives) are used more and more frequently in laparoscopic surgery, the accompanying byproducts are also more and more, such as smoke and various harmful gases. These byproducts can atomize the mirror surface of the laparoscope, thus deteriorating the visual field definition and affecting the smooth operation. Compared with a plurality of smoke removing devices adopted abroad in high-end operation rooms, the smoke removing method generally adopted in China is that smoke is manually controlled, namely, an operator manually removes smoke by using an aspirator while performing an operation, so that the smoke removing cost is greatly reduced, the working pressure of medical staff is increased, and the operation time is prolonged; secondly, the smoke outlet valve of the puncture sheath is opened to directly discharge smoke to the operating room, thus harming the health of medical care personnel.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an intelligent sensing smoke exhaust system for laparoscopic surgery, which aims to solve the problems in the background art, can accurately adjust the smoke exhaust flow, timely suck away smoke generated by surgical energy instruments (such as an ultrasonic knife) and ensure stable pneumoperitoneum pressure.

In order to achieve the purpose, the utility model provides the following technical scheme:

an intelligent induction smoke exhaust system for laparoscopic surgery comprises a puncture sheath, a detection device and a smoke sensor, wherein the puncture sheath is provided with a near end close to an abdominal cavity and a far end far away from the abdominal cavity, the detection device comprises a signal transmitter arranged on the outer wall of the far end of the puncture sheath, and the smoke sensor is arranged on the inner wall of the near end of the puncture sheath and is electrically connected with the signal transmitter; a smoke outlet is formed in the side wall of the puncture sheath and is connected with a signal conversion device; and a flow control valve for controlling the smoke discharge amount is arranged in the signal conversion device.

As a further scheme of the utility model: the outer wall of the puncture sheath is sleeved with an annular member, the signal transmitter is fixedly arranged on the annular member, and the annular member is provided with a through hole overlapped with the smoke exhaust port.

As a further scheme of the utility model: the number of the smoke sensors is at least two, and the number of the signal transmitters is the same as that of the smoke sensors.

As a further scheme of the utility model: the signal conversion device is connected with a negative pressure pump.

As a further scheme of the utility model: the negative pressure pump is connected with a filter.

As a further scheme of the utility model: the filter is detachably arranged.

Compared with the prior art, the utility model has the beneficial effects that:

the puncture sheath is integrated with the detection device, so that the puncture sheath has high detection precision, compact and small structure and low failure rate; the signal transmitter is fixedly arranged on the annular member sleeved on the periphery of the puncture sheath, so that the signals collected by the smoke sensor can be quickly transmitted to the signal conversion device, the smoke sensor and the signal conversion device which are arranged on the inner wall of the near end of the puncture sheath can accurately adjust the flow of smoke exhaust by using smoke signals and further transmit the smoke exhaust to the negative pressure pump, and the negative pressure pump generates negative pressure with corresponding size to suck smoke; the negative pressure pump can timely suck away the smoke generated by the surgical energy instrument under the condition that smoke is generated, and automatically stops working under the condition that no smoke exists, so that the stability of pneumoperitoneum pressure is ensured; the filter is used for filtering aerosol in the operation smog, and this filter is detachable installation, changes as required after convenient to use a plurality of times.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the puncture sheath of the present invention in use in laparoscopic surgery;

in the figure: 1-puncture sheath, 11-smoke outlet, 12-annular member, 2-detection device, 21-signal transmitter, 22-smoke sensor, 23-signal line, 3-signal conversion device, 4-negative pressure pump and 5-filter.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-2, in laparoscopic surgery, 3-5 puncture sheaths are typically used to access laparoscopic surgical instruments into and out of the abdominal cavity, which serve to position, secure, and manipulate the instruments. In the embodiment of the utility model, the intelligent induction smoke exhaust system for the laparoscopic surgery comprises a puncture sheath 1 with a traditional structure, wherein the puncture sheath 1 is provided with a near end close to an abdominal cavity and a far end far away from the abdominal cavity, and a detection device 2 is additionally arranged on the puncture sheath 1. The detection device 2 includes a signal transmitter 21, a smoke sensor 22, and a signal line 23. Wherein, the outer wall of the puncture sheath 1 is sleeved with an annular component 12 near the far end thereof, the signal transmitter 21 is fixedly arranged on the annular component 12, the smoke sensor 22 is arranged in the inner wall of the near end of the puncture sheath 1, the signal wire 23 connects the signal transmitter 21 and the smoke sensor 22 together, and the signal wire 23 is axially arranged along the sheath tube wall of the puncture sheath 1. The annular component 12 is radially provided with a through hole, the side wall of the puncture sheath 1 is provided with a smoke outlet 11 for smoke discharge, and the through hole and the smoke outlet 11 are arranged in an overlapping manner. The inner cavity of the puncture sheath 1 is an exhaust passage, and a smoke outlet 11 for discharging waste gas such as smoke is communicated with the exhaust passage and the abdominal cavity. The smoke outlet 11 is connected with a signal conversion device 3, and a flow control valve for controlling the smoke discharge amount is arranged in the signal conversion device 3. In order to improve the detection accuracy, two or more smoke sensors 22 may be provided, and the signal transmitters 21 may correspond to the smoke sensors 22 one to one. It should be noted that the flow control valve has a proportional opening amount, which is beneficial for maintaining the pressure in the abdominal cavity stable, and may be one of a linear curve and a logarithmic curve.

Further, the signal conversion device 3 is connected in series with a negative pressure pump 4 and a filter 5 in sequence. The negative pressure pump 4 is used for generating negative pressure to pump operation smoke out of the abdominal cavity. The negative pressure pump 4 may be one of an electronic negative pressure pump and a mechanical negative pressure pump. The filter 5 is used for filtering aerosol in the operation smog, and the filter 5 is detachably installed, and is convenient to use for a plurality of times and then is replaced according to needs. The filter 5 can be an air filter or normal saline, and two or more filtering modes can be arranged for improving the efficiency of filtering harmful aerosol. When the air filter is adopted, the first stage is a high efficiency air filter (HEPA), and the second stage is an ultra high efficiency air filter (ULPA); if normal saline is adopted, the primary concentration is 0.67-0.70%, and the secondary concentration is 0.85-0.9%.

The signal transmitter 21 transmits the detection data of the smoke sensor 22 to the signal conversion device 3, the signal conversion device 3 receives the signal and converts the signal into an electric signal, and the negative pressure pump 4 generates corresponding negative pressure after receiving the electric signal to pump the surgical smoke out of the abdominal cavity. If the smoke sensor 22 detects that no smoke exists, the power is automatically cut off, the negative pressure pump 4 stops working, and the pressure in the abdominal cavity is maintained to be stable.

The working principle of the utility model mainly comprises three blocks of smoke concentration detection, smoke discharge rate confirmation and smoke discharge flow control, and the working principle is as follows:

first, smoke concentration detection

And establishing a communication connection between the signal transmitter 21 and the signal receiver, judging the signal before the communication connection, displaying abnormal working of the detection device 2 if the signal is not matched, prompting check information and giving an alarm.

The smoke sensor 22 detects the smoke concentration in the abdominal cavity in real time, and the signal transmitter 21 detects the working state of the smoke sensor 22 and transmits a smoke concentration signal to the signal conversion device 3.

Second, confirming the smoke exhaust rate

The signal conversion device 3 determines the smoke concentration level in the abdominal cavity according to the received smoke concentration signal; the smoke intensity level may be subsequently manually adjusted.

Third, flow control of exhaust gas

The signal conversion device 3 determines a smoke discharge intensity gear according to the corresponding relation between the preset smoke concentration grade and the smoke discharge intensity gear; the signal conversion device 3 sends a corresponding command to the flow control valve according to the size of the smoke discharge intensity gear, and the flow control valve receives the command to adjust the flow size of the smoke discharge intensity gear.

Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.

Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (6)

1. An intelligent induction smoke exhaust system for laparoscopic surgery comprises a puncture sheath (1), wherein the puncture sheath (1) is provided with a near end close to an abdominal cavity and a far end far away from the abdominal cavity, and is characterized by further comprising a detection device (2), wherein the detection device (2) comprises a signal transmitter (21) arranged on the outer wall of the far end of the puncture sheath (1) and a smoke sensor (22) arranged on the inner wall of the near end of the puncture sheath (1) and electrically connected with the signal transmitter (21); a smoke outlet (11) is formed in the side wall of the puncture sheath (1), and the smoke outlet (11) is connected with a signal conversion device (3); and a flow control valve for controlling the smoke discharge amount is arranged in the signal conversion device (3).

2. The laparoscopic surgery intelligent induction smoke evacuation system according to claim 1, wherein an annular member (12) is sleeved on the outer wall of the puncture sheath (1), the signal transmitter (21) is fixedly arranged on the annular member (12), and a through hole overlapped with the smoke exhaust port (11) is formed in the annular member (12).

3. The laparoscopic surgery intelligent induction smoke evacuation system according to claim 1, wherein the number of said smoke sensors (22) is at least two, and the number of said signal transmitters (21) is the same as the number of said smoke sensors (22).

4. The laparoscopic surgery intelligent induction smoke evacuation system according to claim 1, wherein a negative pressure pump (4) is connected to said signal conversion device (3).

5. The laparoscopic surgery intelligent induction smoke evacuation system according to claim 4, wherein a filter (5) is connected to said negative pressure pump (4).

6. The laparoscopic surgery intelligent induction smoke evacuation system according to claim 5, wherein said filter (5) is detachably installed.

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