CN212547993U

CN212547993U - Radiotherapy is with sucking ware subassembly

Info

Publication number: CN212547993U
Application number: CN202020487918.4U
Authority: CN
Inventors: 李兴德; 赵瑾; 赵悦; 王明; 王井润
Original assignee: CANGZHOU CENTRAL HOSPITAL
Current assignee: CANGZHOU CENTRAL HOSPITAL
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-02-19
Anticipated expiration: 2030-04-01

Abstract

The utility model relates to a buccal device component for radiotherapy, which comprises an oral cavity support and a split type sealing water sac, wherein the oral cavity support comprises a horseshoe-shaped lower tooth socket clamped on a lower tooth, a pair of upper tooth sockets clamped on upper teeth are arranged above two sides of the lower tooth socket, the lower tooth socket is connected with the upper tooth sockets through a connecting part, a channel is formed between the two upper tooth sockets in the front-back direction, and the inner edge of the front side of the lower tooth socket extends backwards to form a tongue depressor; the water sac is arranged above the tongue depressor. The utility model discloses can realize that the patient keeps the mouth open, the state that the tongue is fixed, through increasing the space distance between oral cavity organs, make radiotherapy dose gradient play a role, and the increase of oral cavity can reduce target area surface dose, in radiotherapy plan design, the normal water that uses carries out dose prosthetic compensating material as human equivalent tissue, so that revise the dose of ray and establish, set up the water pocket in through the oral cavity support, can reduce the radioactive damage of tongue and partial oral mucosa, can not cause the decline of target area dose again.

Description

Radiotherapy is with sucking ware subassembly

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a radiotherapy is with sucking ware subassembly is related to.

Background

Along with the change of living habits and dietary structures of human beings, the incidence rate of head and neck tumors increases year by year, most patients have local advanced stage or even advanced stage at the time of treatment, the optimal treatment effect is difficult to achieve by single operation treatment, most patients need to be matched with radiotherapy to achieve the optimal treatment effect, or the radiotherapy of the head and neck tumors at the very early stage can achieve the equivalent treatment effect by operation, and the radiotherapy is one of the most common treatment methods for the head and neck tumors.

In recent years, precise radiotherapy represented by intensity modulated radiotherapy technology plays an important role in improving the local control rate of oral tumors, but the incidence rate of radioactive injuries such as dental caries, oral mucositis, xerostomia and the like is still high, and the life quality of patients is seriously influenced. The buccal device is a prevention means and is concerned by scholars at home and abroad.

At present, when a hospital carries out radiotherapy on head and neck tumors such as nasopharyngeal carcinoma, tongue cancer, tonsil cancer and the like on some patients, the mouth of the patient is required to be opened, and the tongue is fixed by using a tongue depressor, so that irradiated tissues in the oral cavity are fully exposed, and normal tissues in the oral cavity are pushed away from a radiation field to be prevented from being irradiated, so that the radiotherapy effect can be improved, the irradiated dose of the normal tissues is reduced, and the side effect of radiotherapy is reduced.

Due to oral swallowing activity and involuntary tongue movement in the radiotherapy process, the target area of radiotherapy is likely to shift, so that the possibility of target deviation and target deviation is caused, and the local recurrence of tumor and treatment failure are finally caused. In order to avoid the above situations, the conventional buccal device is usually adopted clinically to reduce the oral cavity movement and tongue movement during treatment; however, the conventional buccal device is relatively short, is difficult to fix the movable part of the whole tongue well, and has poor fixing repeatability.

Some existing buccal devices for radiotherapy can keep the mouth of a patient open and the tongue fixed in the radiotherapy process, but have problems that the positions for placing the buccal devices are changed greatly, the shapes of the buccal devices are easy to change, the buccal devices are difficult to fix due to the particularity of the structures of the oral cavity and the tongue, the repeatability of using the buccal devices is poor, the repeatability of the positions of the upper and lower jaws and the tongue of the patient in each radiotherapy is difficult to ensure, and the radioactive damage of the oral mucosa and the tongue is easy to aggravate; the tongue can not be effectively fixed, so that the body position is difficult to keep consistent in the radiotherapy process, and the respiratory tract is possibly blocked.

Because the oral cavity increases when the existing mouth gag is used, the surface dosage of a target area can be reduced due to the existence of the cavity, and in the radiotherapy plan design, the equivalent tissue of a human body is often required to be used for dose repair so as to correct the dose build-up of rays, so that the radioactive damage to the tongue and part of the oral mucosa can be effectively reduced, the irradiation dose of the target area cannot be reduced, and the mouth gag for radiotherapy is an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a radiotherapy is with sucking ware subassembly, this sucking ware subassembly can not only realize that the patient keeps the mouth open, and the state that the tongue is fixed makes the fixed position repeatability who sucks the ware subassembly high moreover, can effectively reduce the radioactive damage of tongue and partial oral cavity mucosa through set up the water pocket in the oral cavity support, does not cause the target area again to shine the dose and descend.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model relates to a buccal device component for radiotherapy, which comprises an oral cavity support and a split type sealing water sac, wherein the oral cavity support comprises a horseshoe-shaped lower tooth socket clamped on a lower tooth, a pair of upper tooth sockets clamped on upper teeth are arranged above two sides of the lower tooth socket, the upper tooth sockets correspond to the lower tooth sockets, the lower tooth sockets and the upper tooth sockets are connected through a connecting part, a channel is formed between the two upper tooth sockets in the front-back direction, and the inner edge of the front side of the lower tooth socket extends backwards to form a tongue depressor; the water sac is arranged above the tongue depressor, and the water sac is provided with a water injection mechanism.

Foretell radiotherapy is with sucking ware subassembly, wherein, the upper end of going up the facing the lower extreme of facing is equipped with the holding tank that is used for holding the tooth respectively.

The mouth part assembly for radiotherapy is characterized in that the upper tooth socket is high in front and low in back.

The water injection mechanism comprises a water injection pipe communicated with the water sac, the water injection pipe is provided with a one-way valve, the water injection pipe between the water sac and the one-way valve is further communicated with a water drain pipe, and the water drain pipe is connected with a stop valve.

In the above buccal device component for radiotherapy, the water bag is provided with the vent hole, and the vent hole penetrates through the whole water bag and is integrally formed with the water bag.

In the buccal device component for radiotherapy, the vent hole close to the front side of the channel is communicated with the vent pipe.

In the buccal device assembly for radiotherapy, the tongue depressor is semicircular and is provided with a downward curved surface matched with the upper surface of the tongue.

In the buccal device component for radiotherapy, steel balls are arranged in the two connecting parts and the tongue depressor.

In the buccal device assembly for radiotherapy, the steel balls in the two connecting parts and the steel balls in the tongue depressor are arranged at intervals in the front-back direction.

The buccal device component for radiotherapy is characterized in that the spacing distance is 0.5-1 cm.

To sum up, the utility model discloses a beneficial technological effect does:

the utility model discloses can push away normal oral cavity tissues such as the tongue body around the tumour, mandible, parotid, mouth end from radiotherapy high dose target area, reduce the illuminated dose and the volume of tongue and part oral mucosa to alleviate the radioactive damage of tongue and part oral mucosa, reach the effect of protection tongue, part oral mucosa and gustation.

The buccal device component enables the radiotherapy dose gradient to play a role mainly by increasing the space distance between oral organs, and because the application of the oral stent increases the oral cavity, the existence of the cavity can reduce the surface dose of a target area.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the oral cavity stent of the present invention;

FIG. 3 is a schematic structural view of the water bag of the present invention;

fig. 4 is a side view of the oral cavity stent of the present invention in use;

FIG. 5 is a top view of the oral cavity bracket for removing upper teeth of the present invention in use;

fig. 6 is a top view showing the use state of the oral cavity bracket and the water sac for removing the upper teeth of the present invention.

Figure 1, oral stent; 11. a lower tooth socket; 12. an upper tooth socket; 13. a connecting portion; 14. a channel; 15. a tongue depressor; 16. accommodating grooves; 2. a water bladder; 3. a water injection mechanism; 31. a water injection pipe; 32. a one-way valve; 33. a water discharge pipe; 34. a stop valve; 35. a vent hole; 36. a breather pipe; 4. steel balls; 5. a tongue.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-6, a buccal device component for radiotherapy comprises an oral cavity bracket 1 and a split type sealing water sac 2, wherein the oral cavity bracket 1 comprises a horseshoe-shaped lower tooth socket 11 for clamping a lower tooth, a pair of upper tooth sockets 12 for clamping an upper tooth are arranged above two sides of the lower tooth socket 11, the upper tooth sockets 12 correspond to the lower tooth socket 11, the lower tooth socket 11 and the upper tooth sockets 12 are connected through a connecting part 13, a channel 14 is formed between the two upper tooth sockets 12 in the front-back direction, and the inner edge of the front side of the lower tooth socket 11 extends backwards to form a tongue depressor 15; the water bag 2 is arranged above the tongue depressor 15, and the water injection mechanism 3 is arranged on the water bag 2.

In this embodiment, the upper end of the upper shell 12 and the lower end of the lower shell 11 are respectively provided with a receiving groove 16 for receiving teeth, and the upper shell 12 is high in front and low in back.

When the oral cavity bracket 1 is placed in the oral cavity, the upper teeth and the lower teeth are opened, so that the teeth on the lower dental bed are clamped with the accommodating groove 16 on the lower tooth socket 11, the teeth on the upper dental bed are clamped with the accommodating groove 16 on the upper dental socket 12, the upper dental socket 12 is high in front and low in back, the teeth on the upper dental bed can be tightly attached to the accommodating groove 16 of the upper dental socket 12, and the adaptation is better.

The water injection mechanism 3 comprises a water injection pipe 31 communicated with the water bag 2, a one-way valve 32 is arranged on the water injection pipe 31, a water discharge pipe 33 is also communicated on the water injection pipe 31 between the water bag 2 and the one-way valve 32, and a stop valve 34 is connected on the water discharge pipe 33.

In one embodiment, the water bag 2 is provided with a vent hole 35, the vent hole 35 penetrates the whole water bag 2 and is integrally formed with the water bag, so that the water bag 2 forms a ring-shaped closed body with the vent hole 35 in the center, and the vent hole 35 close to the front side of the channel 14 is communicated with a vent pipe 36. Through establishing air vent 35 and breather pipe 36 in water pocket 2, after 2 water injections to water pocket, water pocket 2 inflation, water pocket 2 fills the oral cavity space, breathing passage through the oral cavity reduces, of course, radiotherapy personnel also can breathe with the nose, but in order to guarantee the demand that some radiotherapy personnel need oral cavity breathing, radiotherapy personnel breathe through air vent 35 and rather than the breather pipe 36 who communicates of water pocket 2 in the passageway 14, the gas flow through the rear side of passageway 14 in oral cavity, air vent 35, breather pipe 36 then stretches out people's oral cavity from the front side of passageway 14, this breathing of having guaranteed radiotherapy personnel is unblocked, potential safety hazard has been avoided.

The tongue depressor 15 is semicircular, and the tongue depressor 15 is provided with a downward curved surface matched with the upper surface of the tongue 5. The tongue tip of a patient is placed below the tongue depressor 15 during radiotherapy, so that the tongue 5 is kept in a stable position, the tongue tip is prevented from moving and the tongue root is prevented from being fixed, and the oral radiotherapy effect is better guaranteed.

The steel balls 4 are arranged in the two connecting parts 13 and the tongue depressor 15, and the steel balls 4 in the two connecting parts 13 and the steel balls 4 in the tongue depressor 15 are arranged at intervals along the front-back direction.

The steel balls 4 are embedded in the upper tooth socket 12 and the tongue depressor 15 in advance, so that the position repeatability of the oral cavity support 1 in the radiotherapy can be verified conveniently, and the accuracy of the radiotherapy is improved.

When the pair of upper tooth socket 12 and the tongue depressor 15 are manufactured, steel balls 4 are respectively embedded in advance as internal marks, the steel balls 4 are embedded in the pair of upper tooth socket 12 and the tongue depressor 15, in order to prevent the steel balls 4 in the pair of upper tooth socket 12 and the steel balls 4 on the tongue depressor 15 from being unable to be separated in side slices, the spacing distance of the steel balls 4 in the front-back direction is kept between 0.5 cm and 1cm, 3 steel balls 4 are preferably selected in the embodiment, one steel ball 4 is embedded in each upper tooth socket 12, one steel ball 4 is embedded in the tongue depressor 15, and the spacing distance of the steel balls 4 seen in the side slices is 1 cm.

The position of the oral cavity support 1 is judged by measuring the distance between 3 steel balls 4 on the lateral image sheet of each time in the CT positioning image of the oral cavity support 1 of the patient, namely, the repeated placement accuracy of the oral cavity support 1 is judged by comparing with the position image of the steel balls 4 in the initial oral cavity support 1, the change of the distance between the corresponding steel balls 4 at each time is smaller, and the repeatability of the oral cavity support 1 is better.

As shown in fig. 6, the specific application process of the present invention is as follows: firstly, opening upper and lower teeth, putting the oral cavity bracket 1 into an oral cavity, enabling the teeth on a lower teethridge to be clamped with an accommodating groove 16 on a lower tooth socket 11, enabling the teeth on an upper teethridge to be clamped with the accommodating groove 16 on an upper tooth socket 12, enabling a tongue depressor 15 to compress the front part of a tongue 5, judging the position of the oral cavity bracket 1 when the oral cavity bracket is placed by measuring the distance between a CT positioning image of a patient and 3 steel balls 4 on a side image sheet every time, and enabling the distance between the corresponding steel balls 4 measured every time to be as small as possible; after the position of the oral cavity support 1 is determined, the water bag 2 is placed into the oral cavity support 1 from the front side of the channel 14, the vent hole 35 of the water bag 2 is placed along the direction of the channel 14, the vent pipe 36 extends out from the front side of the channel 14, the upper surface of the tongue depressor 15 is abutted against the water bag 2, the stop valve 34 on the water discharge pipe 33 of the water bag 2 is closed, water is injected into the water bag 2 from the water injection pipe 31, about 20-50ml of water is injected into the water bag 2 through the water injection pipe 31 by using an injector according to the size of the oral cavity volume of a patient, water cannot flow out after being injected into the water bag 2 due to the one-way conduction property of the one-way valve 32, the oral cavity is filled by expanding the water.

After the radiotherapy is finished, the stop valve 34 on the water discharge pipe 33 is opened to discharge the water in the water bag 2, and the water bag 2 can be taken out from the front side of the channel 14 first, and then the oral stent 1 can be taken out from the oral cavity, so that the whole radiotherapy process is finished.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A mouth gag component for radiotherapy is characterized by comprising a mouth support and a split type sealing water sac, wherein the mouth support comprises a horseshoe-shaped lower tooth socket clamped on a lower tooth, a pair of upper tooth sockets clamped on the upper tooth are arranged above two sides of the lower tooth socket and correspond to the lower tooth socket, the lower tooth socket and the upper tooth socket are connected through a connecting part, a channel is formed between the two upper tooth sockets in the front-back direction, and the inner edge of the front side of the lower tooth socket extends backwards to form a tongue depressor; the water sac is arranged above the tongue depressor, and the water sac is provided with a water injection mechanism.

2. The radiotherapy mouth piece assembly of claim 1, wherein the upper end of the upper shell and the lower end of the lower shell are respectively provided with receiving grooves for receiving teeth.

3. The radiotherapy mouth piece assembly of claim 1 or claim 2, wherein the upper shell is high in front and low in back.

4. The radiotherapy mouth piece assembly of claim 1, wherein the water injection mechanism comprises a water injection pipe communicated with the water bag, the water injection pipe is provided with a one-way valve, a water discharge pipe is further communicated with the water injection pipe between the water bag and the one-way valve, and the water discharge pipe is connected with a stop valve.

5. The radiotherapy used mouth gag assembly of claim 1 or 4, wherein the water bladder is provided with vent holes that extend through and are integrally formed with the water bladder.

6. The radiotherapy mouthpiece assembly of claim 5, wherein the vent adjacent the front side of the channel is in communication with a vent tube.

7. The radiotherapy mouthpiece of claim 1, wherein the tongue depressor is semi-circular and has a downwardly curved surface that conforms to the upper surface of the tongue.

8. The assembly of claim 1, wherein steel balls are provided in both said connecting portion and said tongue depressor.

9. The assembly of claim 8, wherein the steel balls in the two connecting portions and the steel balls in the tongue depressor are spaced apart in a front-to-back direction.

10. The radiotherapy mouthpiece of claim 9, wherein the separation distance is 0.5-1 cm.