Safe and comfortable oral cavity catheter device

Abstract

The utility model discloses a safe and comfortable oral cavity catheter device which comprises a drainage catheter provided with a first opening and a second opening which are communicated with each other, and a negative pressure channel is formed between the first opening and the second opening. One end of the negative pressure connector is connected with the second opening; the blocking piece is inserted into the negative pressure channel; the negative pressure channel is blocked by the blocking piece, so that the volume of the negative pressure channel is reduced, and the attraction force entering the negative pressure connector from the first opening is increased. According to the drainage catheter, the blocking piece is inserted into the negative pressure channel of the drainage catheter, the blocking piece can block the negative pressure channel so that the volume of the negative pressure channel can be reduced, in other words, the sectional area of the negative pressure channel is reduced, and under the same negative pressure, the attraction force entering the negative pressure channel is improved through the blocking effect of the blocking piece; therefore, the suction force entering the negative pressure connector from the first opening is increased, and the negative pressure provided by the negative pressure equipment can be effectively utilized.

Description

Technical Field

[0001] The utility model relates to the field of oral treatment auxiliary equipment, in particular to a safe and comfortable oral catheter device. Background Art

[0002] As a common oral medical diagnostic and treatment instrument, the oral catheter device can clean the saliva and spray water in the patient's mouth in time. When medical staff perform oral treatment or diagnosis on patients, the patient's mouth is stimulated by the instrument and secretes more saliva. At the same time, during the treatment process, in order to avoid damage to the oral cavity caused by high temperature caused by grinding and cutting of instruments, the doctor will spray water into the mouth regularly to cool the tooth body. The oral catheter device will promptly suck away the saliva and spray water in the mouth to keep the operation field clear. In order to keep the patient's mouth clean, the above-mentioned oral catheter device is usually disposable. At present, doctors use many small parts in clinical oral treatment. If they cannot hold them, patients may inhale the small parts into the trachea or swallow them into the gastrointestinal tract. Therefore, the oral catheter device has a very important position in clinical oral treatment.

[0003] The current oral catheter device adopts a single-tube connected catheter structure, that is, the cross-section of the internal catheter for adsorption is a regular circular hole structure, and the adsorption force is mainly adjusted and controlled by an external negative pressure device. Therefore, the adsorption catheter structure inside the oral catheter device mainly serves as a straw, which is not conducive to effectively utilizing the adsorption force provided by the negative pressure device. There is still room for improvement in improving the adsorption force of the oral catheter device. Utility Model Content

[0004] The safe and comfortable oral catheter device of the utility model can effectively solve the problem that the existing oral catheter devices are not conducive to improving the attractiveness.

[0005] According to one aspect of the utility model, a safe and comfortable oral catheter device is provided, comprising:

[0006] A drainage catheter having a first opening and a second opening that are interconnected, and a negative pressure channel is formed between the first opening and the second opening;

[0007] A negative pressure connector, one end of which is connected to the second opening; and

[0008] A blocking member, plugged into the negative pressure channel;

[0009] The negative pressure channel is blocked by the blocking member so that the volume of the negative pressure channel is reduced, thereby increasing the suction force entering the negative pressure connector from the first opening.

[0010] In some embodiments, the drainage catheter is provided with a third opening, the third opening is communicated with the negative pressure channel, and the plugging member is plugged into the third opening. Thus, the third opening facilitates the plugging member to be directly plugged into the negative pressure channel, which can more conveniently and quickly reduce the volume of the negative pressure channel and is more convenient to operate.

[0011] In some embodiments, the blocking member is provided with an insertion portion and a first abutment portion, wherein the insertion portion is inserted into the negative pressure channel to block the negative pressure channel, and the first abutment portion abuts against the outside of the drainage catheter. Thus, the insertion portion can extend to the negative pressure channel, and the first abutment portion is used to abut against the third opening to seal the third opening.

[0012] In some embodiments, the blocking member is further provided with a second abutment portion, the second abutment portion is located between the insertion portion and the first abutment portion, and the second abutment portion abuts against the negative pressure channel. Thus, the second abutment portion is conducive to further improving the air tightness of the drainage catheter, avoiding air leakage and reducing the attraction.

[0013] In some embodiments, the negative pressure connector has a connecting tube, which is inserted into the negative pressure channel along the second opening, and the connecting tube and the negative pressure channel can be relatively rotatable. Thus, the negative pressure connector can be rotated relative to the drainage catheter through the connecting tube, that is, the negative pressure connector can be rotated 360 degrees relative to the drainage catheter to adjust the angle of the negative pressure connector when in use, thereby improving the flexibility of the negative pressure connector.

[0014] In some embodiments, the negative pressure channel is provided with a first connection part, the connection tube is provided with a second connection part, and the negative pressure connector is inserted into the second opening to drive the first connection part to connect with the second connection part. Thus, the connection between the first connection part and the second connection part is conducive to ensuring air tightness, while increasing the connection strength between the drainage catheter and the negative pressure connector.

[0015] In some embodiments, the negative pressure connector is provided with a fourth opening, the third opening is aligned with the fourth opening, and the plugging member is inserted into the third opening and the fourth opening at the same time. Thus, the plugging member is conducive to strengthening the connection strength between the negative pressure connector and the drainage catheter.

[0016] In some embodiments, in the suction direction of the first opening, the projection of the blocking member coincides with the projection of the first opening. Thus, the blocking member is located at the inflection point of the negative pressure channel, which is beneficial to improving the suction force.

[0017] In some embodiments, a first side hole is provided at one end of the drainage catheter near the first opening, and the first side hole is connected to the negative pressure channel. Thus, the first side hole can increase the suction angle and avoid the problem of incomplete suction of the side of the drainage catheter.

[0018] In some embodiments, the drainage catheter is provided with a protective part accommodated in the oral cavity, and the protective part is provided with a plurality of through-going air holes. Thus, the protective part is conducive to preventing blood, saliva and other foreign matter from entering the throat, effectively expanding the surgical space and improving the patient's comfort during the operation.

[0019] Compared with the prior art, the safe and comfortable oral catheter device of the utility model has the following advantages:

[0020] Beneficial effects:

[0021] The drainage catheter of the present application is used to attract debris in the oral cavity and is connected to a negative pressure connector. The oral cavity is cleaned through the attraction provided by the negative pressure connector and an external negative pressure device. A blocking piece is inserted into the negative pressure channel of the drainage catheter. The blocking piece can block the negative pressure channel to reduce the volume of the negative pressure channel, that is, reduce the cross-sectional area of ​​the negative pressure channel. Under the same negative pressure, the blocking effect of the blocking piece increases the attraction entering the negative pressure channel, thereby increasing the attraction entering the negative pressure connector from the first opening, and the negative pressure provided by the negative pressure device can be effectively utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the safe and comfortable oral catheter device of the utility model;

[0023] Figure 2 This is a front view of the safe and comfortable oral catheter device of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the blocking member in the utility model;

[0025] Figure 4 This is a structural breakdown diagram of the safe and comfortable oral catheter device of the utility model;

[0026] Figure 5 A bottom view of the safe and comfortable oral catheter device of the utility model;

[0027] Figure 6 for Figure 5 Sectional view along AA direction;

[0028] Figure 7 for Figure 5 Sectional view along BB direction;

[0029] Figure 8 This is a reference diagram for the use of the safe and comfortable oral catheter device of the utility model on a model.

[0030] In the figure: 1-drainage catheter, 11-first catheter part, 111-first opening, 112-first side hole, 12-second catheter part, 121-second opening, 122-first connecting part, 133-third opening, 123-negative pressure channel, 13-occlusal part, 14-protective part, 141-arc-shaped part, 142-cheek guard part, 143-protrusion, 144-air vent, 2-negative pressure connector, 21-connecting tube, 22-second connecting part, 3-blocking piece, 31-insertion part, 32-first abutting part, 33-second abutting part. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] The utility model relates to a safe and comfortable oral catheter device, which can be connected to an external negative pressure device. The negative pressure device, such as an air pump, a negative pressure fan and the like, can provide negative pressure to provide the attraction required when the safe and comfortable oral catheter device is used. The safe and comfortable oral catheter device can be placed in the oral cavity when in use, and can absorb debris in the oral cavity at any time to ensure a clean environment for clinical oral treatment.

[0034] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0035] Figure 1 The safe and comfortable oral catheter device (hereinafter referred to as "catheter device") according to one embodiment of the utility model is schematically shown. For the convenience of description, the length direction of the catheter device is the left-right direction, the width direction of the catheter device is the front-back direction, and the height direction of the catheter device is the up-down direction. Figure 1 As shown, the catheter device includes a drainage catheter 1, a negative pressure connector 2 and a blocking member 3.

[0036] like Figure 2 , Figure 4 , Figure 6 As shown, the drainage catheter 1 is made of polymer material, and includes a first catheter portion 11, a second catheter portion 12, a bite portion 13 and a protective portion 14. The first catheter portion 11 and the second catheter portion 12 both adopt a single-column catheter structure, and both are hollow structures inside. The first catheter portion 11 extends in the up and down directions, and the first catheter portion 11 has a first opening 111, which is located at the lower side (bottom) of the first catheter portion 11 and adopts an oblique structure. In addition, the first catheter portion 11 adopts a double-tube integrated shape, and has two through holes inside for adsorption ventilation. The first catheter portion 11 is generally placed in the patient's oral cavity, and the first opening 111 is used as the initial end of suction. The second conduit portion 12 is preferably a cylindrical single-tube structure, the second conduit portion 12 is connected to the inside of the first conduit portion 11, the second conduit portion 12 extends in the left-right direction and is located on the right side of the drainage conduit 1, the end of the second conduit portion 12 has a second opening 121, the second opening 121 is connected to the first opening 111, and the portion connected between the second opening 121 and the first opening 111 forms a negative pressure channel 123. In this embodiment, the first conduit portion 11 and the second conduit portion 12 are designed to be vertically distributed, which facilitates the second conduit portion 12 to be drawn out from the patient's oral cavity. Further, a first side hole 112 is provided on the first conduit portion 11, the first side hole 112 is connected to the negative pressure channel 123, and the negative pressure attraction in the negative pressure channel 123 can act on the first side hole 112, and the debris and blood in the patient's oral cavity can enter the negative pressure channel 123 from the first side hole 112, which improves the convenience of multi-angle suction of the first conduit portion 11.

[0037] The bite portion 13 is arranged between the first catheter portion 11 and the second catheter portion 12, specifically, the bite portion 13 is located at the front and rear sides of the drainage catheter 1, the bite portion 13 adopts a groove structure, and a non-slip stripe structure is arranged in the groove, and the patient's left or right teeth can bite on the bite portion 13 to fix the position of the drainage catheter 1 in the oral cavity, and the drainage catheter 1 is not easy to fall off during use. Further, a second side hole 134 is arranged on the bite portion 13, and the second side hole 134 is connected to the negative pressure channel 123, and is used to absorb saliva, blood, etc. from the patient's teeth.

[0038] like Figure 5 , Figure 8As shown, the protective part 14 is arranged opposite to the second catheter part 12, and the protective part 14 is located on the left side of the drainage catheter 1. When viewed from the front-to-back direction, the protective part 14 is bent and has an arc end face with the opening of the arc facing upward. When in use, the protective part 14 is placed in the patient's mouth (close to the tongue), and the tongue can abut against the protective part 14. The width size of the protective part 14 can further prevent unnecessary small parts and impurities from being accidentally swallowed by the patient. The protective part 14 adopts a double-layer structure design, and the double-layer structure is a hollow structure. A protrusion 143 is provided between the double-layer structures to avoid overlapping of the double-layer structures and ensure the air permeability of the patient during treatment. The protective part 14 is provided with a plurality of through air holes 144, and airflow can enter the patient's mouth through the air holes 144. When necessary, the patient can inhale air through the air holes 144 to further improve the air permeability of the protective part 14. Furthermore, the protective part 14 is also provided with an arc portion 141, which is recessed at the edges of the front and rear sides of the protective part 14, corresponding to the function of the occlusal part 13. The arc portion 141 can be occluded by the other side of the patient's teeth to ensure that the drainage catheter 1 is placed in the patient's oral cavity. In addition, when the arc portion 141 is occluded by the patient, the double-layer structure of the protective part 14 can be separated, which is conducive to ensuring the air permeability of the drainage catheter 1. Furthermore, the left end of the protective part 14 is also provided with a cheek guard 142, which is located on the patient's cheek when in use. It has a smooth edge, which can protect the patient's cheek from hard contact damage during use, and also facilitates medical staff to remove the drainage catheter 1.

[0039] like Figure 4 , Figure 6As shown, the negative pressure connector 2 adopts a round tube structure and is made of ABS plastic. One end of the negative pressure connector 2 is used to connect to an external negative pressure device, and its interior is also a hollow structure. The other end of the negative pressure connector 2 is connected to the second opening 121. Specifically, one end of the negative pressure connector 2 is provided with a connecting pipe 21, and the connecting pipe 21 can be inserted into the second catheter portion 12 from the second opening 121 so as to be able to communicate with the negative pressure channel 123, that is, the negative pressure connector 2 is connected to the drainage catheter 1. Therefore, in this embodiment, the negative pressure connector 2 is detachably connected to the second catheter portion 12, and a first connecting portion 122 is provided in the negative pressure channel 123, and the connecting pipe 21 is provided with a second connecting portion 22. When the connecting pipe 21 is inserted into the second catheter portion 12, the first connecting portion 122 is clamped with the second connecting portion 22. The first connecting portion 122 can adopt an inner side annular groove structure, and the second connecting portion 22 adopts an outer side annular protrusion 143 structure. Of course, the structures of the first connecting portion 122 and the second connecting portion 22 can be used interchangeably. In addition, the connecting tube 21 and the negative pressure channel 123 can be arranged to rotate relative to each other, that is, the connecting tube 21 can be rotatably connected relative to the negative pressure channel 123 (360°). At the same time, when the connecting tube 21 rotates, the negative pressure connector 2 can rotate 360° relative to the drainage catheter 1, and the second connecting part 22 can also rotate 360° along the first connecting part 122. Therefore, when in use, after the patient bites and fixes the drainage catheter 1, the negative pressure connector 2 rotates relative to the drainage catheter 1 to adjust the angle of the negative pressure connector 2, thereby improving the flexibility of the use of the negative pressure connector 2, and placing less restriction on the negative pressure connector 2 without affecting the overall air tightness. Since the connecting tube 21 extends to the negative pressure channel 123, and under the cooperation of the first connecting part 122 and the second connecting part 22, the air tightness of the negative pressure connector 2 and the drainage catheter 1 is effectively guaranteed.

[0040] like Figure 3 As shown, the blocking member 3 is made of ABS plastic and adopts a block structure. The blocking member 3 is used to be inserted into the negative pressure channel 123 so as to shield the negative pressure channel 123. The blocking member 3 includes an insertion portion 31, a first abutment portion 32 and a second abutment portion 33, which are integrally formed. The insertion portion 31 is located at the lower side of the blocking member 3 and adopts a rectangular parallelepiped shape. Its width dimension is smaller than the width dimension of the cross section of the negative pressure channel 123 (circular cross-sectional diameter). The insertion portion 31 can be inserted into the negative pressure channel 123 driven by the first abutment portion 32, as shown in FIG. Figure 7As shown, compared with the original negative pressure channel 123, the insertion portion 31 reduces the volume of the negative pressure channel 123. On the other hand, the circular cross-sectional area of ​​the negative pressure channel 123 is reduced under the action of the insertion portion 31. The first abutting portion 32 is located on the upper side of the blocking member 3 and is arranged opposite to the insertion portion 31. The first abutting portion 32 adopts a round cake structure, and its diameter is larger than the width dimension of the insertion portion 31. Furthermore, a mark, such as a text mark, is provided on the first abutting portion 32 to indicate the insertion direction of the blocking member 3. The second abutting portion 33 is arranged between the insertion portion 31 and the first abutting portion 32. The second abutting portion 33 can abut on the negative pressure channel 123 to further ensure the airtightness of the negative pressure channel 123. In this embodiment, a third opening 133 is provided on the upper surface of the drainage catheter 1, and the third opening 133 is arranged opposite to the first opening 111. The third opening 133 is connected to the negative pressure channel 123, and the blocking member 3 is inserted in the third opening 133. The blocking member 3 passes through the third opening 133 and blocks part of the negative pressure channel 123, wherein the first abutting portion 32 can abut on the upper surface of the drainage catheter 1 to close the third opening 133. After the blocking member 3 is inserted into the third opening 133, in the suction direction (height direction) of the first opening 111, the projection of the blocking member 3 coincides with the projection of the first opening 111. Therefore, after the airflow enters from the first opening 111, it passes through the negative pressure channel 123 extending in the height direction and passes through the blocking member 3 to reduce the volume of the negative pressure channel 123 extending in the left and right directions, and the blocking member 3 acts at the inflection point of the negative pressure channel 123.

[0041] It can be seen that compared with the normally connected negative pressure channel 123, the blocking member 3 blocks the negative pressure channel 123 so that the cross-sectional area of ​​the negative pressure channel 123 is reduced. Under the same negative pressure, the blocking member 3 increases the flow rate of the airflow, so the attraction force entering the negative pressure connector 2 from the first opening 111 is greater.

[0042] In some embodiments, the insertion portion 31 of the blocking member 3 is provided with a slope structure, which extends upward and forward, so that the volume of the insertion portion 31 gradually increases from bottom to top. When viewed from the left and right directions, the cross-sectional area of ​​the insertion portion 31 gradually increases upward. When the blocking member 3 is inserted into the third opening 133, the negative pressure channel 123 is gradually blocked by the insertion portion 31. As the insertion portion 31 extends into the negative pressure channel 123, the cross-sectional area of ​​the negative pressure channel 123 gradually decreases so as to be able to adjust the attraction force entering the negative pressure connector 2 from the first opening 111. Of course, the insertion portion 31 of the above embodiment can be adjusted by increasing the size of the insertion portion 31 extending into the negative pressure channel 123. This embodiment mainly aims to improve the accuracy of adjusting the attraction force.

[0043] In some embodiments, the negative pressure connector 2 is provided with a fourth opening, for example, the fourth opening is provided on the connecting tube 21, the fourth opening can be communicated with the inside of the negative pressure connector 2, the third opening 133 is provided on the second conduit portion 12, that is, the third opening 133 is not in the extension direction of the first opening 111, and the third opening 133 is aligned with the fourth opening, and the blocking member 3 is inserted into the third opening 133 and the fourth opening at the same time to reduce the volume for airflow passing through the inside of the negative pressure connector 2, thereby increasing the airflow rate entering the negative pressure connector 2, so that the attraction force entering the negative pressure connector 2 from the first opening 111 is increased. And the blocking member 3 is also used to lock the position of the negative pressure connector 2 in the second conduit portion 12 to improve the connection strength of the negative pressure connector 2.

[0044] The catheter device of the present application is simple to operate. Before use, the medical staff can apply vaseline on the corners of the patient's mouth. After the catheter device is connected to the external negative pressure equipment, the drainage catheter 1 and the negative pressure connector 2 are connected, the direction is accurately held, and the negative pressure connector 2 is bent and placed in the patient's mouth. The catheter device of the present application is easy to operate and has low cost. It is suitable for clinical operations that do not require disinfection again for one-time use. In addition, the catheter device of the present application is used to keep the mouth open, isolate teeth, press the tongue, protect the cheeks, and absorb blood, saliva and other foreign matter in the patient's mouth during oral treatment, so as to establish an isolation barrier, keep the surgical field clean, protect oral soft tissue, prevent accidental swallowing and aspiration of treatment equipment, and reduce droplet-transmitted infection.

[0045] The above description is only a preferred embodiment of the present invention. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. This does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A safe and comfortable oral catheter device, characterized in that: include: A drainage catheter having a first opening and a second opening that are interconnected, wherein a negative pressure channel is formed between the first opening and the second opening; A negative pressure connector, one end of which is connected to the second opening; as well as A blocking member, inserted into the negative pressure channel; The negative pressure channel is blocked by the blocking member so that the volume of the negative pressure channel is reduced, thereby increasing the suction force entering the negative pressure connector from the first opening.

2. The safe and comfortable oral catheter device according to claim 1, characterized in that: The drainage catheter is provided with a third opening, the third opening is communicated with the negative pressure channel, and the blocking member is plugged into the third opening.

3. The safe and comfortable oral catheter device according to claim 2, characterized in that: The blocking member is provided with an inserting portion and a first abutting portion, wherein the inserting portion is inserted into the negative pressure channel to block the negative pressure channel, and the first abutting portion abuts against the outer side of the drainage catheter.

4. The safe and comfortable oral catheter device according to claim 3, characterized in that: The blocking member is further provided with a second abutting portion, the second abutting portion is located between the inserting portion and the first abutting portion, and the second abutting portion abuts against the negative pressure channel.

5. The safe and comfortable oral catheter device according to claim 1, characterized in that: The negative pressure connector has a connecting tube, which is inserted into the negative pressure channel along the second opening, and the connecting tube and the negative pressure channel are rotatably arranged relative to each other.

6. The safe and comfortable oral catheter device according to claim 5, characterized in that: The negative pressure channel is provided with a first connection part, the connection pipe is provided with a second connection part, and the negative pressure connection head is inserted into the second opening to drive the first connection part to connect with the second connection part.

7. The safe and comfortable oral catheter device according to claim 2, characterized in that: The negative pressure connector is provided with a fourth opening, the third opening is aligned with the fourth opening, and the blocking member is inserted into the third opening and the fourth opening at the same time.

8. The safe and comfortable oral catheter device according to claim 1, characterized in that: In the suction direction of the first opening, a projection of the blocking member coincides with a projection of the first opening.

9. The safe and comfortable oral catheter device according to claim 1, characterized in that: A first side hole is provided on one end of the drainage catheter close to the first opening, and the first side hole is communicated with the negative pressure channel.

10. The safe and comfortable oral catheter device according to any one of claims 1 to 9, characterized in that: The drainage catheter is provided with a protective part accommodated in the oral cavity, and the protective part is provided with a plurality of through-going air holes.

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