DE202020103018U1 - Smoke removal device for endoscopic surgical instruments - Google Patents

Abstract

A smoke removal device attached to an endoscopic surgical instrument, the endoscopic surgical instrument comprising a handle portion and a long rod portion, characterized in that
the smoke removing device comprises a tubular body, and the tubular body is sheathed outside of the long rod portion;
a distal side of the tubular body is a hollow tube, and an air path is formed between the inner wall and the rod-shaped outer wall of the long long rod portion of the surgical instrument, and an annular air outlet is formed at the distal end;
a proximal side of the tubular body is a three-way structure comprising two interpenetrating ports through which the long rod portion passes and a through hole opened on the wall of the tubular body, the through hole is an air inlet, one of the two Terminals communicates with the distal side of the tubular body, the other terminal is opened to the connecting portion of the grip portion and the long rod portion, and a sealing body is interposed between the other terminal and the long rod portion so that the other terminal is a sealing terminal to prevent that the gas pumped by the air pump through the inlet port exits through the other port.

Description

Technical area

The utility model relates to the technical field of medical instruments, in particular to a smoke removal device for endoscopic surgical instruments.

State of the art

With the development of medical technology, electrosurgical devices, laser knives, ultrasonic scalpels and other surgical instruments are widely used in surgery to make modern medical work more convenient and effective. Such endoscopic surgical instruments all have a long rod that is used to penetrate the cavity of the human body through the puncture cannula and perform minimally invasive surgery. At the same time, the surgical smoke generated during the operation can impair the doctor's field of vision. On the other hand, the smoke causes the temperature of the human tissue to be operated on to rise further, which adversely affects the effect of the operation and increases the patient's suffering.

There are currently some two-in-one devices for electrocautery and smoke evacuation devices at home and abroad. However, since these devices are usually expensive, they are rarely advertised in primary hospitals, or even when such devices are used, the expensive costs are also passed on to the patient, which increases the cost to a patient.

Content of the present utility model

In view of the problems in the prior art, the object of the present utility model is to provide a smoke removing device during the operation, which safeguards the field of view of the operation area during the operation and has a simple structure.

• Eine Rauchentfernungsvorrichtung, die an einem endoskopischen chirurgischen Instrument angebracht ist, wobai das endoskopische chirurgische Instrument einen Griffabschnitt und einen langen Stababschnitt umfasst, dadurch gekennzeichnet,
• die Rauchentfernungsvorrichtung einen röhrenförmigen Körper umfasst, und der röhrenförmige Körper außerhalb des langen Stababschnitts ummantelt ist;
• eine distale Seite des röhrenförmigen Körpers ein hohles Rohr ist, und ein Luftweg zwischen der Innenwand und der stabförmigen Außenwand des langen langen Stababschnitts des chirurgischen Instruments ausgebildet ist, und am distalen Ende ein ringförmiger Luftauslass ausgebildet ist;
• eine proximale Seite des Rohrkörpers eine Dreiwege-Struktur ist, die zwei sich gegenseitig durchdringende Anschlüsse, durch die der lange Stababschnitt verläuft, und ein Durchgangsloch, das an der Wand des röhrenförmigen Körpers geöffnet ist, umfasst, das Durchgangsloch ein Lufteinlass ist, Einer der beiden Anschlüsse mit der distalen Seite des röhrenförmigen Körpers kommuniziert, der andere Anschluss sich zum Verbindungsabschnitt des Griffabschnitts und des langen Stababschnitts geöffnet ist und ein Dichtungskörper zwischen dem anderen Anschluss und dem langen Stababschnitt angeordnet, so dass der andere Anschluss ein Dichtungsanschluss ist, um zu verhindern, dass das von der Luftpumpe durch den Einlassanschluss gepumpte Gas durch den anderen Anschluss austritt.

To achieve the above purpose, the utility model uses the following technical solutions:

• A smoke removal device attached to an endoscopic surgical instrument, the endoscopic surgical instrument comprising a handle portion and a long rod portion, characterized in that
• the smoke removing device comprises a tubular body, and the tubular body is sheathed outside of the long rod portion;
• a distal side of the tubular body is a hollow tube, and an air path is formed between the inner wall and the rod-shaped outer wall of the long long rod portion of the surgical instrument, and an annular air outlet is formed at the distal end;
• a proximal side of the tubular body is a three-way structure comprising two interpenetrating ports through which the long rod portion passes and a through hole opened on the wall of the tubular body, the through hole is an air inlet, one of the two Terminals communicates with the distal side of the tubular body, the other terminal is opened to the connecting portion of the grip portion and the long rod portion, and a sealing body is interposed between the other terminal and the long rod portion so that the other terminal is a sealing terminal to prevent that the gas pumped by the air pump through the inlet port exits through the other port.

Furthermore, at least one side air outlet is arranged further on the distal side of the tubular body.

Further, the at least one side air outlet is at least one smoke vent hole provided on the side wall of the distal end of the tubular body.

Furthermore, the tube wall of the three-way structure is thicker than the distal side of the tube body.

Furthermore, the sealing body is an elastic sealing ring.

For ease of manufacture, the hollow tubular structure at the distal end and the three-way structure at the proximal end can be manufactured separately and then the two are sealed together such as an adhesive bond.

For the clarity of the disclosure, the terms “proximal” and “distal” are defined herein with respect to an operator grasping a surgical instrument. The term “proximal” refers to a position closer to the operator and the term “distal” refers to a position further away from the operator.

The air pump according to the present utility model is also called an air pump and its function is to pump air into the smoke removal device.

• Das Gebrauchsmuster hat eine einfache Struktur, die sich von dem herkömmlichen Rauchabzugssystem unterscheidet, das die Inhalationsmethode anwendet, aber die Luftblasmethode anwendet, um den Rauch schnell aus der Operationsposition des chirurgischen Instruments zu vertreiben, um das Sichtfeld des Arztes nicht zu beeinträchtigen. Andererseits kann eine kontinuierliche Luftblase durch die Luftpumpe auch die Temperatur des menschlichen Gewebes während der Operation rechtzeitig senken, das Gewebe schützen, eine Überhitzung und Verletzung des Gewebes verhindern und die Schmerzen des Patienten verringern.
• Es verbessert auch die chirurgische Effizienz des Arztes und verringert die Schmerzen des Patienten weiter.

Compared to the state of the art, the advantages and effects of this utility model are as follows:

• The utility model has a simple structure that is different from the traditional smoke evacuation system that uses the inhalation method, but uses the air-blowing method to quickly expel the smoke from the surgical instrument's operating position so as not to obstruct the doctor's field of vision. On the other hand, a continuous air bubble by the air pump can also lower the temperature of the human tissue in time during the operation, protect the tissue, prevent overheating and injury to the tissue, and reduce the patient's pain.
• It also improves the doctor's surgical efficiency and further reduces the patient's pain.

Figure list

• 1 and 2 13 are schematic structural views of a smoke removing device in an embodiment of the utility model;
• 3 Figure 3 is a schematic representation of the smoke removal device disposed on the surgical instrument in one embodiment of the utility model;
• 4th Fig. 3 is a schematic illustration of the distal structure of the smoke removing device in the embodiment of the utility model;
• 5 Fig. 13 is a schematic illustration of a structure in which the distal side and the proximal side are separated in the embodiment of the utility model;
• 6 Fig. 13 is a schematic structural view of a side air outlet in an embodiment of the utility model.

1

distal hollow tubular connection

11

Airway

12th

circular air outlet

13th

side air outlet

2

Proximal three-way structure

21st

Pneumatic joint

22nd

Elastic sealing ring

3

Endoscopic surgical instrument

3

Surgical instruments 3

31

Handle section

32

long rod section

33

Body section

Detailed embodiments

This embodiment provides a smoke removal device that is attached to an endoscopic surgical instrument. With reference to the 1 to 5 includes the endoscopic surgical instrument 3 a handle portion 31 , a body section 33 and a long rod section 32 . The handle section 31 located below the body section 33 . The long stick section 32 is with one end of the main body portion 33 connected. The handle section 31 is operated manually, and the movement of the long rod section 32 is made by the connection processing of the body part s 33 controlled. The smoke removal device comprises a tubular body 20th , which is covered around the long rod portion, and the tubular body 20th consists of a distal side 1 and a proximal side 2 , with the distal side 1 is a hollow tube. An annular airway is between the distal inner wall and the rod-shaped outer wall of the long rod section 32 of the surgical instrument 3 and at the distal end is an annular air outlet 12th educated. The proximal side 2 of the tubular body 20th is a three-way structure. The three-way structure includes two interpenetrating ports 25 and 26th through which the long rod section 32 runs, and a through hole 21st that is on the wall of the tubular body 20th is trained. The through hole 21st is a gas circuit connection that is used to adjust the air outlet of the air pump. One of the two ports communicates 25 with the distal side 1 of the tubular body, and the other connector 26th adjoins the handle section 31 on and an elastic sealing ring 22nd is between the other port 26th and the long rod section 32 provided to form a closed end to prevent the gas blown by the air pump from reaching the handle portion 31 flows.

Referring to 6 there are also several side air outlet holes 13th at the distal end 1 of the tubular body 20th arranged. In particular, there are several small through holes for venting smoke in the side wall of the end of the distal end 1 of the tubular body 20th designed to improve smoke evacuation efficiency.

As in the 1 and 2 is shown for installing the elastic sealing ring 22nd the pipe wall of the three-way structure, in particular the pipe wall of the three-way structure, in particular the pipe wall between the two connections 25 and 26th , is thicker than the tube wall at the distal end 1 .

The elastic sealing ring 22nd not only plays a sealing role and prevents gas from leaking directly from the gas path connection after entering, so that the gas does not form a blown air stream from the distal end; On the other hand, due to the elastic friction of the elastic material when the surgical instrument is rotated (due to the surgical procedure, the surgical instrument rotates frequently), the smoke removal device connected to the air pump does not rotate with it, in order to prevent the air pump or the air suction tube from moving between the air pump and entangle the air circuit connection.

The positional relationship between the distal end of the tubular body 20th and the end of the long rod section 32 of the surgical instrument requires that the operation of the end of the long rod section 32 is not influenced during operation. The other opening 31 of the tubular body 20th , ie the other end of the tubular body opposite the distal end, can be at the junction of the body portion 33 and the long rod section 32 of the surgical instrument or on a certain length of the long rod section 32 be provided, which can be controlled according to the actual usage scenario.

The working principle of this embodiment is: The smoke removing device is on the long rod section 32 encased. The frictional force between the elastic sealing ring 22nd and the inner wall of the other port 26th the three-way structure and the outer wall of the long rod section 32 allows the smoke removal device to be relatively attached to the long rod section 32 is attached. However, the smoke removal device can be rotated by manual or other external force to rotate relative to the long rod section 32 to rotate, and the position of the smoke removal device can also be adjusted axially. The air pump system communicates with the gas circuit connection of the three-way structure. The gas blown by the air pump comes out of the annular air outlet 12th the distal side 1 and the multiple side air outlet holes 13th through the annular airway 11 blown out, causing the one on the distal side 1 at the end of the long rod section 32 smoke generated during surgery is blown.

For ease of manufacture, the hollow tubular structure 1 at the distal end and the three-way structure 2 can be made separately at the proximal end, and then the two are hermetically joined, such as by glue, and it can also be an integral structure.

The above embodiments are only used to illustrate the technical solutions of the present utility model, but not to restrict them. Although the present utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the purpose and scope of the technical solution, they should fall within the scope of the claims of present utility model.

Claims (8)

A smoke removal device attached to an endoscopic surgical instrument, the endoscopic surgical instrument comprising a handle portion and a long rod portion, characterized in that the smoke removal device comprises a tubular body, and the tubular body is jacketed outside the long rod portion; a distal side of the tubular body is a hollow tube, and an air path is formed between the inner wall and the rod-shaped outer wall of the long long rod portion of the surgical instrument, and an annular air outlet is formed at the distal end; a proximal side of the tubular body is a three-way structure comprising two interpenetrating ports through which the long rod portion passes and a through hole opened on the wall of the tubular body, the through hole is an air inlet, one of the two Terminals communicates with the distal side of the tubular body, the other terminal is opened to the connecting portion of the grip portion and the long rod portion, and a sealing body is interposed between the other terminal and the long rod portion so that the other terminal is a sealing terminal to prevent that the gas pumped by the air pump through the inlet port exits through the other port. Smoke removal device according to Claim 1 , characterized in that at least one side air outlet is arranged further on the distal side of the tubular body. Smoke removal device according to Claim 2 , characterized in that the at least one side air outlet is at least one smoke vent hole provided on the side wall of the distal end of the tubular body. Smoke removal device according to Claim 1 , characterized in that the tube wall of the three-way structure is thicker than the distal side of the tube body. Smoke removal device according to Claim 1 , characterized in that the sealing body is an elastic sealing ring which is encased between the inner wall of the other terminal and the outer wall of the long rod section. Smoke removal device according to Claim 1 wherein the hollow tubular structure at the distal end and the three-way structure at the proximal end are split structures that are hermetically joined together. Smoke removal device according to Claim 1 wherein the hollow tubular structure at the distal end and the three-way structure at the proximal end are an integral structure. Smoke removal device according to Claim 1 wherein the air inlet is a gas outlet for connecting an air pump.

Images