CN115300644A

CN115300644A - Medical instrument for disinfecting oral instrument

Info

Publication number: CN115300644A
Application number: CN202210806029.3A
Authority: CN
Inventors: 刘夙平
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-11-08

Abstract

The invention relates to the technical field of oral instruments, in particular to a medical instrument for disinfecting oral instruments, which comprises: the bottom end of the drying and sterilizing box is fixedly connected with a fixed bottom column, the top end of the drying and sterilizing box is fixedly connected with four groups of supporting rods, the top end of each supporting rod is fixedly connected with a washing and sterilizing box, and the surface of each washing and sterilizing box is provided with a cover plate; the support column, the top at the apron is installed to the support column, the top fixedly connected with backup pad of support column. According to the invention, through the design of the first filter screen and the second filter screen, impurities can be prevented from entering the surface of the medical instrument, the disinfection level is improved, the disinfection speed is higher, and the motor body is started through the control panel in the disinfection process, so that the medical instrument placed on the surface of the net rack is prevented from rotating for disinfection to a certain extent, the medical instrument is ensured to be disinfected in all aspects, and the disinfection effect on the medical instrument is greatly improved.

Description

Medical instrument for disinfecting oral instruments

Technical Field

The invention relates to the technical field of oral instruments, in particular to a medical instrument for disinfecting an oral instrument.

Background

The oral cavity nursing is to clean and protect the teeth, tongue, palate, cheek and other parts in the oral cavity organs, the initial part of the digestive canal is communicated with the outside by means of the cleft mouth, the posterior channel is continued with the pharynx by the isthmus, the front wall of the oral cavity is a structure of lips, the side wall is the cheek, the top is the palate, the bottom of the oral cavity is mucous membrane and muscle and the like, and the oral cavity is divided into the oral vestibule of the anterior lateral part and the inherent oral cavity of the posterior medial part by means of the upper dental arch and the lower dental arch; when the upper and lower jaw teeth are occluded, the oral vestibule and the inherent oral cavity can be communicated by means of a gap behind the third molar, clinically, when the teeth of a patient are closed tightly, an opener or an intubation tube can be arranged through the channel, medicines or nutrient substances are injected, meanwhile, the biting injury of the tongue is prevented, articles used in oral nursing can be used for the patient after being disinfected, the aseptic technique operation principle is followed, the operation is light and delicate, the integrity of the oral moving membrane is kept, unnecessary injury is avoided, a cotton ball used is clamped to prevent the cotton ball from being left in the oral cavity of the patient, the cotton ball is not excessively wet so as to prevent the solution from being sucked into a respiratory tract, and the change of the oral melting membrane, such as no congestion, inflammation, erosion, ulcer, swelling, abnormal change of the color of a tongue fur and the like, is observed in the oral nursing, and one of the oral department and the medical discipline classification is provided. The major stomatological disorders include: stomatoglossal part skin sample, epiderm submaxillary space infection, jaw face lymphangioma, dentate process development deformity, maxillary sinus malignant tumor, jaw bone amelogenesis cytoma, chronic ethmoid sinusitis, mandibular retropulsion, tetracycline teeth disease, tongue leukoplakia, etc. By techniques, many periodontal diseases are completely cured. The development of tissue bioengineering techniques such as: guided tissue regeneration technology, gene technology, artificial tooth implantation and the like are particularly promising for the regeneration of diseased teeth.

Medical instrument in the department of stomatology uses frequently, especially, be used for examining the medical instrument of the inside etiology of oral cavity, these medical instrument need disinfect it after using the completion, and still need dry after the processing and carry out reserve, thereby current degassing unit only uses sterile water to wash when using and disinfect, this kind of disinfection mode disinfection effect is not good, and use to the medical instrument in later stage and cause certain trouble, need alone disinfect medical instrument carrying out individuality after the disinfection, degassing unit's integration result of use is relatively poor, completion that can not be quick is to medical instrument's disinfection overall process, integration disinfection effect remains to be improved, therefore we are perfected and are improved the problem that becomes at present need to solve urgently to above-mentioned problem.

Disclosure of Invention

The invention aims to provide a medical instrument for disinfecting oral instruments, and aims to solve the problems that the medical instrument provided in the background technology needs to be disinfected after being used and needs to be dried for standby after being used, the existing disinfection device only uses disinfectant water to wash and disinfect when being used, the disinfection effect is poor due to the disinfection mode, certain troubles are caused to the use of the medical instrument in the later period, the medical instrument needs to be disinfected independently after being disinfected, the integral using effect of the disinfection device is poor, the whole disinfection process of the medical instrument cannot be finished quickly, and the integral disinfection effect needs to be improved.

In order to achieve the purpose, the invention provides the following technical scheme: a medical device for disinfecting an oral device, comprising:

the bottom end of the drying and sterilizing box is fixedly connected with a fixed bottom column, the top end of the drying and sterilizing box is fixedly connected with four groups of supporting rods, the top end of each supporting rod is fixedly connected with a washing and sterilizing box, and the surface of the washing and sterilizing box is provided with a cover plate;

the support column, the top at the apron is installed to the support column, the top fixedly connected with backup pad of support column, the surface of backup pad is provided with motor body, the surface of apron is provided with throws the feed cylinder, the dog-house has been seted up on the top of throwing the feed cylinder, motor body's output is provided with the axis of rotation, the bottom fixedly connected with connecting rod of axis of rotation, the bottom fixedly connected with stabilizing ring of connecting rod, stabilizing ring's bottom fixedly connected with places the rack, the one side of placing the rack is provided with the stopper, the stopper is provided with two sets ofly, wash the first filter screen of one side fixedly connected with of disinfect box inner wall, wash the opposite side fixedly connected with second filter screen of disinfect box inner wall, wash the opposite side fixedly connected with control panel of disinfect box, the right-hand member one side of washing disinfect box is provided with the supporting shoe, one side of supporting shoe is provided with first conveyer pipe.

Preferably, one side fixedly connected with drinking-water pipe of first conveyer pipe, the top of first conveyer pipe is provided with first ooff valve, the one end of drinking-water pipe is provided with first connecting pipe.

Preferably, one side of the left end of the washing and disinfecting box is fixedly connected with a second conveying pipe, a second switch valve is arranged on the surface of the second conveying pipe, and a second connecting pipe is arranged on the other side of the second conveying pipe.

Preferably, the outer surface of the washing and disinfecting box is fixedly connected with an observation plate, and an observation window is arranged in the observation plate.

Preferably, one side of the drying and sterilizing box is provided with a groove, the inner side wall of the drying and sterilizing box is fixedly connected with a limiting frame, and one side of the limiting frame is provided with a limiting groove.

Preferably, the inside of stoving disinfect box is provided with the stoving rack, one side fixedly connected with sealing door of stoving rack, one side fixedly connected with handle of sealing door.

Preferably, one side of the inner wall of the drying and sterilizing box is fixedly connected with a first electric heating pipe, and the inner bottom wall of the drying and sterilizing box is fixedly connected with a second electric heating pipe.

Preferably, the inner bottom wall of stoving rack is provided with first hourglass net, one side of stoving rack is provided with the second and leaks the net, the opposite side of stoving rack is provided with the third and leaks the net.

Compared with the prior art, the invention has the beneficial effects that:

1. the medical appliance for disinfecting the oral appliances comprises a washing and disinfecting box, a cover plate, a supporting column, a supporting plate, a motor body, a feeding cylinder, a feeding port, a rotating shaft, a connecting rod, a stabilizing ring, a placing net rack, a limiting block, a first filter screen, a second filter screen, a control panel, a supporting block, a first conveying pipe and a first switch valve, wherein the washing and disinfecting box is provided with the washing and disinfecting box, the washing and disinfecting box is provided with the first conveying pipe, the water pumping pipe and the first connecting pipe, the flow of the high-temperature sterilizing water can be controlled through the first switch valve, the first switch valve can be controlled according to actual needs, so that the flow of the high-temperature sterilizing water can be controlled, the high-temperature sterilizing water in the high-temperature sterilizing water can be pumped out through the second conveying pipe, the second switch valve and the second connecting pipe in the same way, the high-temperature sterilizing water in the washing and disinfecting box can be effectively replaced, impurities can be prevented from entering the surface of the medical apparatus through the design of the first filter screen and the second filter screen, improves the disinfection level, leads the disinfection speed to be faster, starts the motor body through the control panel in the disinfection process, drives the rotating shaft and the connecting rod to rotate through the motor body, thereby the connecting rod can drive the placing net rack to rotate, thereby preventing the medical apparatus on the surface of the placing net rack from rotating and disinfecting to a certain extent, ensuring the comprehensive disinfection of the medical apparatus, the disinfection effect to medical instrument has been improved greatly, can carry out quick observation to medical instrument through observation board and observation window in the disinfection process simultaneously, has embodied the functional of design.

2. This a medical instrument for oral cavity apparatus disinfection, through the recess that sets up, spacing, the spacing groove, the stoving rack, sealing door, the handle, first electric heating pipe, the second electric heating pipe, first hourglass net, second hourglass net and third hourglass net, when using, after the medical instrument disinfection completion inside washing the disinfect box, through taking medical instrument under sterile environment, then operating personnel is through placing the inside of stoving rack with medical instrument, then through the inside with the stoving rack propelling movement to the recess, when the inside of spacing groove is carried out to the stoving rack propelling movement, can carry out certain spacing with the stoving rack, and can carry out certain start-up with first electric heating pipe and second electric heating pipe through control panel, generate heat through first electric heating pipe and second electric heating pipe and heat and dry medical instrument, when first electric heating pipe and second electric heating pipe heat, through first hourglass net, the design of second hourglass net and third hourglass net can carry out quick stoving to medical instrument, thereby medical device can carry out the heating and heat the disinfection operation of disinfection, the design problem of having avoided the independence to disinfect, the operation is ingenious, the design, the use has still embodied the problem alone.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure according to the present invention;

FIG. 2 is a schematic exploded view of the rinse and disinfect box of the present invention;

FIG. 3 is a perspective view of the motor body and the rotating shaft structure of the present invention;

FIG. 4 is a schematic view of the drying and sterilizing box and the drying rack structure according to the present invention;

FIG. 5 is a perspective view of the structure of the washing and disinfecting box of the present invention;

FIG. 6 is an enlarged view of the structure at A in FIG. 1 according to the present invention.

In the figure: 1. drying and sterilizing the box; 2. fixing the bottom pillar; 3. a support bar; 4. washing the disinfection box; 5. a cover plate; 6. a support pillar; 7. a support plate; 8. a motor body; 9. a charging barrel; 10. a feeding port; 11. a rotating shaft; 12. a connecting rod; 13. a stabilizing ring; 14. placing a net rack; 15. a limiting block; 16. a first filter screen; 17. a second filter screen; 18. a control panel; 19. a supporting block; 20. a first delivery pipe; 21. a first on-off valve; 22. a water pumping pipe; 23. a second delivery pipe; 24. a second on-off valve; 25. an observation plate; 26. an observation window; 27. a groove; 28. a limiting frame; 29. a limiting groove; 30. drying the net rack; 31. a sealing door; 32. a grip; 33. a first electric heating tube; 34. a second electric heating tube; 35. a first leaky network; 36. a second leaky network; 37. a third leaky network; 38. a first connecting pipe; 39. a second connection pipe.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-6, an embodiment of the present invention is shown:

a medical instrument for disinfecting oral cavity instruments, the motor body 8, the control panel 18, the first switch valve 21, the second switch valve 24, the first electric heating tube 33 and the second electric heating tube 34 used in the present application are all products that can be directly purchased on the market, the principle and the connection mode thereof are the prior art well known to those skilled in the art, and therefore no further description is given here, and the output end of the control panel 18 is electrically connected with the input ends of the motor body 8, the first electric heating tube 33 and the second electric heating tube 34 through wires, and includes:

a first electric heating pipe 33 is fixedly connected with one side of the inner wall of a drying and sterilizing box 1, a second electric heating pipe 34 is fixedly connected with the inner bottom wall of the drying and sterilizing box 1, the first electric heating pipe 33 is a tubular electric heating element and is composed of a metal pipe spiral resistance wire, crystallized magnesium oxide powder and the like, the first electric heating pipe 33 product is generally made into a heating element by using materials such as a high-quality imported stainless steel pipe, imported high-temperature magnesium oxide powder, a high-quality electric heating wire and the like, other structural parts are made of stainless steel, the high-temperature electric heating pipe has excellent overall performance, has the characteristics of super-long service life and easy maintenance, the high-temperature resistance wire is uniformly distributed in a stainless steel seamless pipe, the crystallized magnesium oxide powder with excellent heat conduction performance and insulation performance is filled in a gap part, the structure is advanced, the heat efficiency is high, the heating is uniform, when the current flows in the high-temperature resistance wire, the generated heat is diffused to the surface of a metal pipe through magnesium oxide powder and then is transmitted to a heated part or air to achieve the purpose of heating, a drying net rack 30 is arranged in a drying and disinfecting box 1, a first leakage net 35 is arranged on the inner bottom wall of the drying net rack 30, a second leakage net 36 is arranged on one side of the drying net rack 30, a third leakage net 37 is arranged on the other side of the drying net rack 30, a sealing door 31 is fixedly connected to one side of the drying net rack 30, a handle 32 is fixedly connected to one side of the sealing door 31, a groove 27 is formed in one side of the drying and disinfecting box 1, a limiting frame 28 is fixedly connected to the inner side wall of the drying and disinfecting box 1, a limiting groove 29 is formed in one side of the limiting frame 28, a fixed bottom column 2 is fixedly connected to the bottom end of the drying and disinfecting box 1, supporting rods 3 are fixedly connected to the top end of the drying and disinfecting box 1, four groups of supporting rods 3 are arranged, a washing and disinfecting box 4 is fixedly connected to the top ends of the supporting rods 3, an observation plate 25 is fixedly connected to the outer surface of the washing and disinfecting box 4, an observation window 26 is arranged inside the observation plate 25, a second conveying pipe 23 is fixedly connected to one side of the left end of the washing and disinfecting box 4, a second switch valve 24 is arranged on the surface of the second conveying pipe 23, a second connecting pipe 39 is arranged on the other side of the second conveying pipe 23, a cover plate 5 is arranged on the surface of the washing and disinfecting box 4, after the medical instruments inside the washing and disinfecting box 4 are disinfected, the medical instruments are taken out under a sterile environment, then an operator places the medical instruments inside the drying net rack 30, then pushes the drying net rack 30 into the groove 27, when the drying net rack 30 is pushed into the limiting groove 29, the drying net rack 30 can be limited to a certain extent, the first electric heating pipe 33 and the second electric heating pipe 34 can be started to a certain extent through the control panel 18, the first electric heating pipe 33 and the second electric heating pipe 34 are used for heating and drying the medical instruments, when the first electric heating pipe 33 and the second electric heating pipe 34 are used, the first electric heating pipe 35, the second electric heating pipe 36 and the third electric heating pipe 36 are used for heating and drying the medical instruments, and the leakage net, and the medical instruments can be conveniently and the like, and the leakage of the medical instruments can be used for drying and disinfecting device independently;

a support column 6, the support column 6 is arranged at the top end of a cover plate 5, a support plate 7 is fixedly connected at the top end of the support column 6, a motor body 8 is arranged on the surface of the support plate 7, a feeding cylinder 9 is arranged on the surface of the cover plate 5, a feeding port 10 is arranged at the top end of the feeding cylinder 9, a rotating shaft 11 is arranged at the output end of the motor body 8, a connecting rod 12 is fixedly connected at the bottom end of the rotating shaft 11, a stabilizing ring 13 is fixedly connected at the bottom end of the connecting rod 12, a placing net rack 14 is fixedly connected at the bottom end of the stabilizing ring 13, a limit block 15 is arranged at one side of the placing net rack 14, two groups of limit blocks 15 are arranged, a first filter screen 16 is fixedly connected at one side of the inner wall of a washing and sterilizing box 4, a second filter screen 17 is fixedly connected at the other side of the inner wall of the washing and sterilizing box 4, a control panel 18 is fixedly connected at the other side of the washing and sterilizing box 4, and a support block 19 is arranged at one side of the right end of the washing and sterilizing box 4, one side of the supporting block 19 is provided with a first delivery pipe 20, one side of the first delivery pipe 20 is fixedly connected with a water pumping pipe 22, the top end of the first delivery pipe 20 is provided with a first switch valve 21, one end of the water pumping pipe 22 is provided with a first connecting pipe 38, the medical apparatus to be disinfected is placed inside the rack 14, then the cover plate 5 is stably installed on the surface of the washing and disinfecting box 4, a certain disinfection and cleaning agent can be put into the washing and disinfecting box 4 through the design of the feeding barrel 9 and the feeding port 10, so that the disinfection effect of the medical apparatus is better, then a certain amount of high-temperature disinfection water is extracted into an external water tank through the design of the first delivery pipe 20, the water pumping pipe 22 and the first connecting pipe 38 and enters the inside of the washing and disinfecting box 4, the flow of the high-temperature disinfection water can be controlled through the first switch valve 21, and the first switch valve 21 can be controlled according to actual needs, thereby can control the flow of high temperature sterile water, through second conveyer pipe 23 with the same reason, second ooff valve 24 and second connecting pipe 39 also can take inside high temperature sterile water out with the same reason, can effectually change the inside high temperature sterile water of disinfect box 4 will wash, design through first filter screen 16 and second filter screen 17 can prevent that impurity from getting into medical instrument's surface, the disinfection level has been improved, and make the disinfection speed faster, and through control panel 18 starting motor body 8 at sterile in-process, it rotates to drive axis of rotation 11 and connecting rod 12 through motor body 8, thereby connecting rod 12 can drive and place rack 14 and rotate, thereby prevent to carry out certain rotation disinfection at the medical instrument who places rack 14 surface, the disinfection of medical instrument omnidirectional has been guaranteed, the disinfection effect to medical instrument has been improved greatly, can carry out quick observation to medical instrument through observation board 25 and observation window 26 in the disinfection process simultaneously.

The working principle is as follows: when the staff uses this device, at first with this device external power supply, thereby for this device provides electric power support, when using, at first place the inside of placing rack 14 with the medical instrument that needs to disinfect, then with the stable installation of apron 5 to the surface of washing disinfect box 4, can put into certain disinfection cleaner to the inside of washing disinfect box 4 through the design of throwing feed cylinder 9 and dog-house 10, make medical instrument's disinfection effect better, then draw a certain amount of high temperature disinfection water into the inside of washing disinfect box 4 to the external water tank through the design of first conveyer pipe 20, drinking-water pipe 22 and first connecting pipe 38, and can control the flow of high temperature disinfection water through first ooff valve 21, can control first ooff valve 21 according to actual need, thereby can control the flow of high temperature disinfection water, similarly, the second delivery pipe 23, the second switch valve 24 and the second connection pipe 39 can also be used to draw out the high-temperature sterilized water inside, so as to effectively replace the high-temperature sterilized water inside the washing and sterilizing box 4, the design of the first filter screen 16 and the second filter screen 17 can prevent impurities from entering the surface of the medical apparatus, thereby improving the sterilization level and making the sterilization speed faster, and the motor body 8 is started through the control panel 18 in the sterilization process, the motor body 8 drives the rotating shaft 11 and the connecting rod 12 to rotate, so that the connecting rod 12 can drive the placing net rack 14 to rotate, thereby preventing the medical apparatus on the surface of the placing net rack 14 from rotating for a certain time to sterilize, ensuring the sterilization of the medical apparatus in all aspects, greatly improving the sterilization effect of the medical apparatus, and simultaneously, the medical apparatus can be rapidly observed through the observation board 25 and the observation window 26 in the sterilization process, after the medical instruments inside the washing and disinfecting box 4 are disinfected, the medical instruments are taken under the sterile environment, then an operator can position the drying rack 30 to a certain extent by placing the medical instruments inside the drying rack 30 and then pushing the drying rack 30 into the groove 27, when the drying rack 30 is pushed into the limiting groove 29, the drying rack 30 can be limited to a certain extent, the first electric heating pipe 33 and the second electric heating pipe 34 can be started to a certain extent through the control panel 18, the medical instruments can be heated and dried through the first electric heating pipe 33 and the second electric heating pipe 34, when the first electric heating pipe 33 and the second electric heating pipe 34 are heated, the medical instruments can be dried quickly through the leakage net design of the first leakage net 35, the second leakage net 36 and the third leakage net 37, so that the device can perform integrated disinfection operation on the medical instruments, the problems that the medical instruments need to be dried independently after disinfection are solved, and the next use is facilitated.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A medical device for disinfecting an oral device, comprising:

the drying and sterilizing box comprises a drying and sterilizing box (1), wherein the bottom end of the drying and sterilizing box (1) is fixedly connected with a fixed bottom column (2), the top end of the drying and sterilizing box (1) is fixedly connected with supporting rods (3), four groups of supporting rods (3) are arranged, the top end of each supporting rod (3) is fixedly connected with a washing and sterilizing box (4), and a cover plate (5) is arranged on the surface of each washing and sterilizing box (4);

support column (6), install on the top of apron (5) support column (6), top fixedly connected with backup pad (7) of support column (6), the surface of backup pad (7) is provided with motor body (8), the surface of apron (5) is provided with throws feed cylinder (9), dog-house (10) have been seted up on the top of throwing feed cylinder (9), motor body's (8) output is provided with axis of rotation (11), the bottom fixedly connected with connecting rod (12) of axis of rotation (11), the bottom fixedly connected with stabilizing ring (13) of connecting rod (12), rack (14) are placed to the bottom fixedly connected with of stabilizing ring (13), one side of placing rack (14) is provided with stopper (15), stopper (15) are provided with two sets ofly, wash first filter screen (16) of one side fixedly connected with of disinfect box (4) inner wall, wash opposite side fixedly connected with second filter screen (17) of disinfect box (4) inner wall, the opposite side fixedly connected with control panel (18) of disinfect box (4), one side of washing disinfect box (4) is provided with supporting shoe (19), one side of right-hand member (19) is provided with first conveyer shoe (20).

2. A medical device for disinfecting an oral device as recited in claim 1, wherein: one side fixedly connected with drinking-water pipe (22) of first conveyer pipe (20), the top of first conveyer pipe (20) is provided with first ooff valve (21), the one end of drinking-water pipe (22) is provided with first connecting pipe (38).

3. A medical device for disinfecting an oral device as claimed in claim 1, wherein: wash left end one side fixedly connected with second conveyer pipe (23) of disinfect box (4), the surface of second conveyer pipe (23) is provided with second ooff valve (24), another of second conveyer pipe (23) is provided with second connecting pipe (39).

4. A medical device for disinfecting an oral device as recited in claim 1, wherein: the outer surface of the washing and disinfecting box (4) is fixedly connected with an observation plate (25), and an observation window (26) is arranged inside the observation plate (25).

5. A medical device for disinfecting an oral device as recited in claim 1, wherein: one side of the drying and sterilizing box (1) is provided with a groove (27), the inner side wall of the drying and sterilizing box (1) is fixedly connected with a limiting frame (28), and one side of the limiting frame (28) is provided with a limiting groove (29).

6. A medical device for disinfecting an oral device as claimed in claim 1, wherein: the inside of stoving disinfect box (1) is provided with stoving rack (30), one side fixedly connected with sealing door (31) of stoving rack (30), one side fixedly connected with handle (32) of sealing door (31).

7. A medical device for disinfecting an oral device as claimed in claim 1, wherein: one side of the inner wall of the drying and sterilizing box (1) is fixedly connected with a first electric heating pipe (33), and the inner bottom wall of the drying and sterilizing box (1) is fixedly connected with a second electric heating pipe (34).

8. A medical device for disinfecting an oral device as recited in claim 6, wherein: the inner bottom wall of stoving rack (30) is provided with first hourglass net (35), one side of stoving rack (30) is provided with second hourglass net (36), the opposite side of stoving rack (30) is provided with third hourglass net (37).