CN110269710A - A kind of oral saliva ejector - Google Patents

Abstract

The invention relates to the field of medical devices, in particular to an oral saliva suction device for removing fluid accumulated in the mouth of a patient, especially a patient undergoing skin flap repair surgery. In order to solve the problem in the prior art that when the conventional bedside suction device is used to suck the fluid in the mouth of oral cancer patients, the suction process is unstable, the drainage effect is poor, and the problem of affecting the healing of the patient's transplanted skin flap is proposed. The device comprises a saliva suction head and a straw. The saliva suction head includes a number of saliva suction tubes provided with a saliva suction port. lead device connection. The oral saliva suction device has simple structure and low manufacturing cost. When in use, place the saliva suction head on the saliva accumulation area in the patient's mouth and turn on the continuous negative pressure suction device, which can continuously and stably suck out the fluid in the patient's mouth, improve the healing effect of the transplanted skin flap, and then improve the survival rate of oral cancer patients. Surgical treatment effect and oral and maxillofacial repair effect.

Description

oral saliva suction device

technical field

The invention relates to the field of medical devices, in particular to an oral saliva suction device for removing fluid accumulated in the mouth of a patient, especially a patient undergoing skin flap repair surgery.

Background technique

Oral cancer is a common malignant tumor in the head and neck, and its main treatment method is surgery. However, oral cancer surgery usually causes a huge defect in the patient's oral and maxillofacial region. Therefore, after oral cancer surgery, the patient needs to be repaired and reconstructed immediately to close the surgical wound in the previous operation and achieve primary healing. At the same time, the patient's oral function and oral and maxillofacial shape can be restored to the maximum extent.

With the continuous development of free flap transplantation and microsurgical techniques, at present, the most commonly used method of repair and reconstruction is to transplant various free flaps to repair oral and maxillofacial defects in patients with oral cancer. After repairing the oral and maxillofacial region of patients with oral cancer with free skin flaps, most of the patients had limited tongue movement, decreased resistance, and increased oral secretions, mainly saliva, and especially around the skin flaps. It is the accumulation of the lower end of the flap, that is, a local saliva accumulation area is formed at the lower end of the flap. When saliva accumulates in the saliva accumulation area for a long time, it is easy to breed bacteria, and then infect the transplanted skin flap soaked in saliva for a long time, and even cause the transplanted skin flap to be necrotic due to infection, resulting in peripheral leakage of the skin flap, which affects the health of oral cancer patients. Surgical treatment effect and oral and maxillofacial restoration effect.

In order to avoid the accumulation of fluid in the mouth and affect the surgical treatment effect of the stomatology department and the repair effect of the oral and maxillofacial region, medical staff usually use conventional bedside suction devices to intermittently suck out secretions such as saliva in the patient's mouth. In this way, although the problem of fluid accumulation in the patient's mouth can be solved to a certain extent, the suction process is intermittent and unstable; in addition, the suction head of the conventional bedside suction device is soft and has only one suction port, which is often affected by the surrounding If the oral tissue is squeezed or blocked due to concentrated pressure, the drainage effect will be poor, and the oral mucosa will be damaged, which will lead to fluid accumulation in the patient's mouth, resulting in leakage around the flap, affecting the healing of the flap, and easily causing oral mucosal damage.

Contents of the invention

In order to solve the problem in the prior art that when using a conventional bedside suction device to suck the fluid in the mouth of a patient with oral cancer, the suction process is intermittently unstable, and the drainage effect is poor, which affects the healing of the patient's transplanted skin flap. A saliva suction device, the oral saliva suction device includes a saliva suction head and a straw, the saliva suction head includes several saliva suction pipes provided with saliva suction ports, and the connectors of the saliva suction pipes are collected and connected to the suction pipe The end is connected, and the suction end of the suction pipe is connected with the continuous negative pressure suction device. Such oral saliva suction device has simple structure and low manufacturing cost. When using the oral saliva suction device to suck saliva from patients with oral cancer, the saliva suction head is placed in the saliva accumulation area in the patient's mouth, and the continuous negative pressure suction device is turned on, so that multiple saliva suction ports can be used to continuously and stably Aspirate the effusion in the patient's mouth to avoid the transplanted flap being soaked in saliva for a long time and affect the healing of the flap, thereby avoiding affecting the surgical treatment effect of oral cancer patients and the repair effect of the oral and maxillofacial region.

Preferably, the saliva suction head has a hollow spherical structure. In this way, when the saliva suction head is placed in the patient's oral cavity, especially in the saliva accumulation area, the patient's oral fluid can flow to the hollow part of the saliva suction head ball, and then use the multiple saliva suction heads on the saliva suction head. The mouth drains the fluid in the patient's mouth, which improves the drainage effect. In addition, the saliva suction head has a spherical structure, which can prevent the saliva suction head, especially the side where the saliva suction port on the saliva suction head is in direct contact with the patient's oral mucosa, from causing damage to the patient's oral mucosa; The outer surface of the head is provided with an antimicrobial drug coating so as to sterilize and disinfect the fluid in the patient's mouth during use, thereby reducing the chance of the patient being infected during the drainage process.

Preferably, the saliva suction opening on the saliva suction tube is located inside the hollow spherical structure of the saliva suction head. In this way, the saliva suction port on the saliva suction head is located on the side of the saliva suction tube away from the patient's oral tissue, which can prevent the saliva suction port from being squeezed by the surrounding oral tissue due to the saliva suction tube being attached to the patient's oral tissue or being squeezed by the saliva suction head. Pressure or concentrated pressure will be blocked, further improving the drainage effect of the oral saliva suction device.

Preferably, the saliva suction head includes several support frames, and the saliva suction tube is erected and fixed on the support frame, and the angle between the plane where the support frame is located and the plane where the saliva suction tube is located is α, and 0°<α<180°. Further, the support frame is a circular frame or an oval frame whose geometric center is on the same straight line, and the planes where any two support frames are located are parallel to each other. In this way, the support frame can be used to support the saliva suction head, which can strengthen the support strength of the saliva suction head, and further ensure the drainage effect of the oral saliva suction device.

Preferably, the saliva suction tube is a hard plastic tube. In this way, the saliva suction pipe can be prevented from being affected by the drainage effect of the mouth saliva suction device due to being squeezed and deformed by the tissue in the patient's mouth.

Preferably, a backflow baffle is provided inside the connecting end of the suction pipe. In this way, in the drainage process, once the saliva in the straw flows back due to failure or falling off of the continuous negative pressure suction device, the backflow baffle can be used to temporarily close the connection end of the straw, thereby preventing the saliva in the straw from flowing back into the patient's mouth .

Preferably, the oral saliva suction device also includes an oral cavity support frame, the oral cavity support frame includes an upper support plate, a lower support plate and a connecting plate, and the upper supporting plate and the lower supporting plate are connected by the connecting plate to form "Concave" shape structure, and the connecting plate is provided with a piercing hole for piercing the straw. Further, the upper support plate and the lower support plate are arc-shaped plates, and when in use, the inner concave sides of the upper support plate and the lower support plate face the corner of the mouth of the affected side. In this way, when using the oral saliva suction device to suck saliva from the patient, the oral support frame can be used to support the space between the upper and lower lips of the patient, so as to avoid interruption of drainage due to the closed occlusal of the upper and lower lips of the patient, and further improve the drainage effect .

Preferably, the straw is a transparent hose, and the outer wall of the straw is provided with a positioning undercut for matching with the piercing hole. In this way, the doctor or nursing staff can adjust and fix the length of the straw between the whole mouth support frame and the saliva suction head according to the distance between the saliva accumulation area in the patient's mouth and the patient's lips, so as to avoid the saliva suction head It moves in the patient's mouth during saliva suction, which can further improve the drainage effect of the oral saliva suction device.

Description of drawings

Fig. 1 is a schematic structural view of the oral saliva suction device of the present invention.

Detailed ways

Below, the oral saliva suction device of the present invention will be described in detail in conjunction with accompanying drawing 1 .

As shown in Figure 1, the oral saliva suction device of the present invention includes a saliva suction head 1, a straw 2 and an oral support frame 3, the saliva suction head 1 includes a number of saliva suction pipes 11, and the saliva suction pipe 11 is provided with a saliva suction mouth 111 , the connector of the saliva suction tube 11 is collected and communicated with the connection end of the suction pipe 2, and the suction end of the suction pipe 2 is connected with the suction port of the continuous negative pressure suction device (not shown). Preferably, the saliva suction head 1 is a hollow spherical structure, so that when the saliva suction head 1 is placed in the patient's oral cavity, especially in the saliva accumulation area, the patient's oral fluid can flow to the spheroid of the saliva suction head 1 The hollow part in the saliva suction head 1 can then be used to drain the fluid in the patient's mouth, which improves the drainage effect. In addition, the saliva suction head 1 has a spherical structure, which can prevent the saliva suction head 1, especially the side where the saliva suction port 111 of the saliva suction head 1 is in direct contact with the patient's oral mucosa, from causing damage to the patient's oral mucosa. Preferably, the saliva suction port 111 on the saliva suction tube 11 is located inside the hollow spherical structure of the saliva suction head 1 . That is to say, the saliva suction port 111 on the saliva suction head 1 is located on the side of the saliva suction tube 11 away from the patient's oral cavity tissue, so that the saliva suction port 111 can be avoided from being damaged by the saliva suction tube 11 against the patient's oral cavity tissue. Blocking, further improving the drainage effect of the oral saliva suction device, while avoiding the direct contact of the saliva suction port 111 with the patient's oral mucosa, and preventing the edge of the saliva suction port 111 from causing damage to the patient's oral mucosa. Preferably, the saliva suction head 1 also includes several support frames 12, and the saliva suction tube 11 is erected and fixed on the support frame 12, and the angle between the plane where the support frame 12 is located and the plane where the saliva suction tube 11 is located is α, and 0°<α<180°. In this way, the use of the support frame 12 to support the saliva suction tube 11 in the saliva suction head 1 can strengthen the support strength of the saliva suction head 1, thereby preventing the saliva suction head 1 from being squeezed by the surrounding oral cavity tissue or caused by pressure concentration. The saliva suction port 111 is blocked to further ensure the drainage effect of the oral saliva suction device. Preferably, the supporting frame 12 is a circular frame or an elliptical frame whose geometric centers are located on the same straight line, and the planes where any two supporting frames 12 are located are parallel to each other. Of course, the saliva suction head 1 can also be a hollow ellipsoidal structure. Preferably, the saliva suction tube 11 is a hard plastic tube. In this way, the saliva suction tube 11 can be prevented from being affected by the drainage effect of the oral saliva suction device due to being squeezed and deformed by the tissue in the patient's mouth. In addition, an antimicrobial drug coating (not shown in the figure) is provided on the outer surface of the saliva suction head 1, so as to sterilize and disinfect the fluid in the patient's mouth during use, thereby reducing the chance of the patient being infected during the drainage process.

The oral support frame 3 comprises an upper support plate 31, a lower support plate 32 and a connecting plate 33, and the upper supporting plate 31 and the lower supporting plate 32 are connected by the connecting plate 33 to form a “concave” font structure, and the connecting plate 33 is provided with a through-hole Establish the piercing hole that suction pipe 2 usefulness. Preferably, both the upper support plate 31 and the lower support plate 32 are arc-shaped plates, and when in use, the inner concave sides of the upper support plate 31 and the lower support plate 32 face the corner of the mouth of the affected side. Like this, when utilizing this oral saliva suction device to suck saliva to the patient, the upper support plate 31 of the support frame 3 can be placed on the patient's upper lip on the affected side, and the lower support frame 32 can be placed on the patient's lower lip on the affected side, so as to use the oral cavity The support frame 3 supports the patient's upper and lower lips, so as to avoid drainage interruption due to the closure of the patient's upper and lower lips, and further improves the drainage effect.

A backflow baffle 21 is arranged inside the connecting end of the suction pipe 2 . In this way, in the drainage process, once the saliva in the straw flows back due to failure or falling off of the continuous negative pressure suction device, the backflow baffle can be used to temporarily close the connection end of the straw, thereby preventing the saliva in the straw from flowing back into the patient's mouth . Preferably, the straw 2 is a transparent hose, and the outer wall of the straw 2 is provided with a plurality of positioning undercuts 22 for matching with the piercing holes. In this way, the doctor or nursing staff can adjust and fix the length of the suction pipe 2 between the whole mouth support frame 3 and the saliva suction head 1 according to the position of the saliva accumulation area in the patient's mouth, so as to avoid the saliva suction head 2 from sucking saliva. During the process, it moves in the patient's mouth, which can further improve the drainage effect of the oral saliva suction device. Preferably, the positioning undercuts 22 are uniformly arranged on the outer wall of the straw 2 along the extending direction of the straw 2 .

Such oral saliva suction device has simple structure and low manufacturing cost. When using the oral saliva suction device to suck saliva from patients with oral cancer, the saliva suction head is placed in the saliva accumulation area in the patient's mouth, and the continuous negative pressure suction device is turned on to continuously and stably remove the effusion in the patient's mouth. Suction, to avoid the transplanted flap being soaked in saliva for a long time and affect the healing of the flap, thereby avoiding affecting the surgical treatment effect of oral cancer patients and the repair effect of the oral and maxillofacial region.

Claims (10)

1. An oral saliva suction device, characterized in that, the oral saliva suction device comprises a saliva suction head and a suction pipe, and the saliva suction head includes several saliva suction pipes provided with a saliva suction mouth, and the connection of the saliva suction pipe The heads are collected and communicated with the connecting end of the suction pipe, and the suction end of the suction pipe is connected with the continuous negative pressure connecting device. 2. The oral saliva suction device according to claim 1, wherein the saliva suction head is a hollow spherical structure, and an antibacterial drug coating is provided on its outer surface. 3. The oral saliva suction tube according to claim 2, characterized in that, the saliva suction opening on the saliva suction tube is located inside the hollow spherical structure of the saliva suction head. 4. The oral saliva suction device according to claim 2, wherein the saliva suction head includes several support frames, and the saliva suction tube is erected and fixed on the support frames, and the support frames are located The angle between the plane and the plane where the saliva suction tube is located is α, and 0°<α<180°. 5. The oral saliva suction device according to claim 4, characterized in that, the support frame is a circular frame or an elliptical frame whose geometric centers are located on the same straight line, and the planes where any two support frames are located are parallel to each other. 6. The oral saliva suction device according to any one of claims 1-5, wherein the saliva suction tube is a hard plastic tube. 7. The oral saliva aspirator according to any one of claims 1-5, characterized in that a backflow baffle is arranged inside the connecting end of the straw. 8. The oral saliva suction device according to any one of claims 1-5, characterized in that, the oral saliva suction device also includes an oral support frame, which includes an upper support plate, a lower support plate and a connection plate, and the upper support plate and the lower support plate are connected by the connecting plate to form a “concave” structure, and the connecting plate is provided with a piercing hole for passing the straw. 9. The oral saliva suction device according to claim 8, characterized in that, the upper support plate and the lower support plate are arc-shaped plates, and when in use, the upper support plate and the lower support plate The concave side of the mouth faces the corner of the mouth on the affected side. 10 . The oral saliva suction device according to claim 8 , wherein the straw is a transparent tube, and the outer wall of the straw is provided with a positioning undercut for matching with the piercing hole. 11 .