Sustained-release administration transnasal endoscopic postoperative conformal post-nostril forming stent

Abstract

The invention relates to a slow-release administration transnasal endoscopic postoperative conformal post-nostril forming support which comprises an upper nose frame assembly and an inner nose frame assembly, the upper nose frame assembly comprises an upper fixing frame, a soft cushion, a containing cavity, a first connector and a first magnet, the soft cushion is connected to the lower end of the upper fixing frame, the containing cavity is formed in the upper fixing frame, the first connector is connected to the lower end of the upper fixing frame, and the first connector is connected to the lower end of the upper fixing frame. A first connector is connected to the lower portion of the left end of the upper fixing frame, a first magnet is embedded in the first connector, the inner nose frame assembly is located below the upper nose frame assembly, and the inner nose frame assembly comprises an inner nose frame body and a connecting frame. The transnasal endoscopic postoperative conformal post-nostril forming stent has the advantages that the stability of equipment can be improved through internal and external matching, rope belt fixing and rope belt rolling functions, the equipment can also slowly release medicaments through a pipeline, and meanwhile, the equipment also has a friction force anti-tightening function, so that the stability of the equipment is improved, and the service life of the equipment is prolonged. And the comfort is prevented from being influenced by over-tight winding.

Description

Technical Field

[0001] The invention relates to the technical field of post-operative tools for nasal endoscopic surgery, in particular to a post-operative conformable posterior nasal cavity shaping stent for sustained-release drug delivery. Background Art

[0002] When it comes to nasal endoscopy, the first thing that comes to mind is things related to the nose, such as allergic rhinitis, atrophic rhinitis, acute and chronic rhinitis, sinusitis, nasal polyps, resection of benign tumors of the nasal cavity and paranasal sinuses, exploration of malignant tumors of the nasal cavity and paranasal sinuses, nasal hemostasis, etc. Nasal endoscopic surgery can not only eliminate rhinitis, sinusitis and nasal polyps, but also correct nasal septum deviation, vocal cord polyp removal and other otolaryngology diseases, thereby reducing the postoperative recurrence rate. After the operation, the nose will be damaged to a certain extent, resulting in poor tolerance of the nose, so a nostril shaping stent is needed to protect and shape the nostrils to prevent the nose from being injured due to stress.

[0003] The existing nostril forming bracket needs to use an external bracket to shape the nose during use, but the external bracket currently used is generally fixed in shape. Because of its fixed shape, it may not fit the nose well during use, which can easily cause discomfort. There are also customized ones that are suitable for you, but the price is expensive and can only be used by a single person, which is a waste.

[0004] Therefore, it is necessary to design a sustained-release drug delivery post-endoscopic nasal congruent choanal stent to address the above problems. Summary of the invention

[0005] The object of the present invention is to provide a sustained-release drug delivery post-endoscopic conformable choanal plasty stent to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sustained-release drug delivery transnasal endoscopic postoperative conformable posterior nasal cavity shaping stent, comprising an upper nose frame assembly and an inner nose frame assembly, the upper nose frame assembly comprising an upper fixing frame, a cushion, a receiving cavity, a first connector and a first magnet, and the lower end of the upper fixing frame is connected to the cushion, the interior of the upper fixing frame is provided with a receiving cavity, and the lower left end of the upper fixing frame is connected to the first connector, the interior of the first connector is inlaid with a first magnet, and the inner nose frame assembly is located below the upper nose frame assembly.

[0007] Furthermore, the inner nose frame assembly includes an inner nose frame body and a connecting frame, and the connecting frame is connected to one side of the inner nose frame body close to the central axis of the upper nose frame assembly.

[0008] Furthermore, the inner nose frame assembly also includes a second magnet and a contact pad, and the second magnet is embedded in the upper end of the inner nose frame body, a pipe assembly is arranged on the outside of the inner nose frame body, and the outside of the pipe assembly is wrapped with a contact pad.

[0009] Furthermore, the pipeline assembly includes a slow-release pipeline and a through pipeline, and the outside of the slow-release pipeline is connected to the through pipeline in a surrounding manner.

[0010] Furthermore, the front and rear sides of the upper nose bridge assembly are connected to a first connecting assembly, and the upper end of the upper nose bridge assembly is connected to a second connecting assembly, and the end of the second connecting assembly away from the upper nose bridge assembly is connected to a storage box.

[0011] Furthermore, the first connecting component includes a first hanging head, a first hook and a first connecting belt, and the first hanging head is connected to the first hook on one side away from the upper nose bridge component, and the first connecting belt is connected to the right side of the first hook.

[0012] Furthermore, the second connecting component includes a second hanging head, a second hook and a second connecting belt, and the upper end of the second hanging head is connected to the second hook, and the right side of the second hook is connected to the second connecting belt.

[0013] Furthermore, a winding assembly is installed inside the storage box, and the winding assembly includes a rotating shaft, a damping spring, a friction block and a winding disk. The outside of the rotating shaft is connected to the damping spring, and the side of the damping spring away from the rotating shaft is connected to the friction block, and the side of the friction block away from the damping spring is connected to the winding disk.

[0014] Furthermore, a rotating assembly is connected to the right side of the rotating shaft, and the rotating assembly includes a rotating head, a second connecting head, a rotating plate and a telescopic connecting rod. The left side of the rotating head is inlaid with the second connecting head, and the inside of the rotating head is connected to the rotating plate. A telescopic connecting rod is welded to the middle part of the left side of the rotating plate.

[0015] Furthermore, the rotating assembly also includes an inlay head, an inner locking plate, a telescopic rod and a telescopic spring, and the inlay head is connected to the left side of the rotating plate, the left side of the inlay head is connected to the inner locking plate, and the left side of the inner locking plate is connected to the telescopic rod, and the outside of the telescopic rod is connected to the telescopic spring.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the device can increase the stability of the device through internal and external coordination, rope fixing and rope winding functions, the device can also slowly release medicine through the pipeline, and the device also has a friction anti-tightening function to prevent the comfort from being affected by excessive winding.

[0017] 1. The interior of the receiving cavity of the present invention is filled with paraffin, which is heated and softened according to the characteristics of paraffin, and then installed on the nose of the user through a soft cushion. The paraffin will return to a fixed shape at room temperature, thereby fitting the nose of the user and making the wearer more comfortable. At the same time, the paraffin can be melted repeatedly to match different nose shapes, so that the device can be used multiple times, thereby reducing the waste of resources. The melting point range of paraffin is 42-62°C, so the paraffin begins to soften when the temperature approaches 42°C. This temperature will not cause harm to the user, and better fitting the nose can also increase the fixing effect of the device.

[0018] 2. The present invention attracts the first magnet and the second magnet to connect the inner nose frame assembly and the upper nose frame assembly, so that the device fits the nose well, thereby better fixing the upper nose frame assembly and the inner nose frame assembly to the nose, preventing the device from falling during use and increasing the stability of the device.

[0019] 3. The present invention can deliver liquid medicine to the nasal cavity in a sustained-release manner through a sustained-release tube, and can connect multiple sustained-release tubes through a through-tube. Because the sustained-release tube is too thin, the through-tube can well provide the sustained-release tube with multiple connection ports, thereby preventing partial blockage in the middle of the sustained-release tube, resulting in occlusion of one of the tubes, making it impossible for the tube to flow liquid, and affecting the sustained-release liquid effect of the device.

[0020] 4. The present invention can make the winding disk reel the second connecting belt and the first connecting belt by rotating the rotating shaft, so that the device can be stably fixed to the head, increasing the stability of the device. At the same time, the damping spring can push the friction block, thereby driving the winding disk to rotate by the friction force between the friction block and the winding disk. When the winding is too tight, the friction block and the winding disk can slip, thereby preventing the winding from being too tight and affecting the comfort.

[0021] 5. The present invention pushes the inner locking plate through the telescopic spring, so that the inner locking plate locks the rotating head to fix the device, thereby preventing the rotating head from being forced to rotate after the tightness is adjusted, affecting the tightness. At the same time, only the rotating plate needs to be pressed to make the rotating head continue to rotate to adjust the wearing tightness of the device, which is convenient for adjusting the tightness of the device, thereby facilitating the fixation and stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of a post-operative conformable choanal plasty stent for sustained-release drug delivery through nasal endoscopic surgery according to the present invention;

[0023] Figure 2 It is a schematic diagram of the top view of the structure of a post-operative conformable choanal plasty stent for sustained-release drug delivery through nasal endoscopic surgery according to the present invention;

[0024] Figure 3It is a schematic diagram of a top view of the structure of an inner nose frame component of a postoperative conformable choanal plasty stent for sustained-release drug delivery through nasal endoscopic surgery according to the present invention;

[0025] Figure 4 It is a cross-sectional enlarged structural schematic diagram of an upper nose frame component of a post-operative conformable choanal plasty stent for sustained-release drug delivery through nasal endoscopic surgery according to the present invention;

[0026] Figure 5 It is a cross-sectional enlarged structural schematic diagram of a rolling component of a post-operative conformable choanal shaping stent for sustained-release drug delivery through nasal endoscopic surgery according to the present invention;

[0027] Figure 6 A sustained-release drug delivery post-endoscopic conformable posterior nasal cavity shaping stent according to the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0028] Figure 7 This is a schematic diagram of the structure of an enlarged pipeline component of a pipeline component of a postoperative conformable choanal shaping stent for sustained-release drug delivery through nasal endoscopic surgery according to the present invention.

[0029] In the figure: 1. upper nose frame assembly; 101. upper fixing frame; 102. cushion; 103. receiving cavity; 104. first connector; 105. first magnet; 2. inner nose frame assembly; 201. inner nose frame body; 202. connecting frame; 203. second magnet; 204. contact pad; 3. pipeline assembly; 301. slow-release pipeline; 302. through pipeline; 4. first connecting assembly; 401. first hanging head; 402. first hook; 403. first connecting belt; 5. Second connecting assembly; 501. Second hanging head; 502. Second hook; 503. Second connecting belt; 6. Storage box; 7. Winding assembly; 701. Rotating shaft; 702. Damping spring; 703. Friction block; 704. Winding disk; 8. Rotating assembly; 801. Rotating head; 802. Second connecting head; 803. Rotating plate; 804. Inlay head; 805. Internal locking plate; 806. Telescopic rod; 807. Telescopic spring; 808. Telescopic connecting rod. DETAILED DESCRIPTION

[0030] like Figure 4 As shown, the present invention provides a technical solution: a sustained-release drug delivery transnasal endoscopic postoperative conformable posterior nasal shaping stent, comprising an upper nose frame component 1 and an inner nose frame component 2, the upper nose frame component 1 comprising an upper fixing frame 101, a cushion 102, a receiving cavity 103, a first connector 104 and a first magnet 105, and the lower end of the upper fixing frame 101 is connected to the cushion 102, the interior of the upper fixing frame 101 is provided with the receiving cavity 103, and the lower left end of the upper fixing frame 101 is connected to the first connector 104, the interior of the first connector 104 is inlaid with the first magnet 105, and the inner nose frame component 2 is located below the upper nose frame component 1;

[0031] The specific operation is as follows: the interior of the accommodating cavity 103 is filled with paraffin, which is heated and softened according to the characteristics of paraffin, and then installed on the nose of the user through the soft pad 102. The paraffin will return to a fixed shape at room temperature, thereby fitting the nose of the user and making the wearer more comfortable. At the same time, the paraffin can be melted repeatedly to match different nose shapes, so that the device can be used multiple times, thereby reducing the waste of resources. The melting point range of paraffin is 42-62°C, so the paraffin begins to soften when the temperature approaches 42°C, and this temperature will not cause harm to the user. At the same time, a better fit to the nose can also increase the fixing effect of the device. The upper fixing frame 101 can play a good supporting effect. The first connector 104 and the first magnet 105 facilitate the connection between the upper nose frame assembly 1 and the inner nose frame assembly 2.

[0032] like Figure 3 As shown, the inner nose frame assembly 2 includes an inner nose frame body 201 and a connecting frame 202, and the inner nose frame body 201 is connected to the connecting frame 202 on one side close to the central axis of the upper nose frame assembly 1, the inner nose frame assembly 2 also includes a second magnet 203 and a contact pad 204, and the upper end of the inner nose frame body 201 is inlaid with the second magnet 203, the outer part of the inner nose frame body 201 is provided with a pipe assembly 3, and the outer part of the pipe assembly 3 is wrapped with a contact pad 204;

[0033] The first magnet 105 and the second magnet 203 are attracted to each other, so that the inner nose frame assembly 2 and the upper nose frame assembly 1 are connected, so that the device fits the nose well, thereby better fixing the upper nose frame assembly 1 and the inner nose frame assembly 2 to the nose to prevent the device from falling during use and increase the stability of the device. The contact pad 204 can protect the pipeline assembly 3, and the connecting frame 202 connects the inner nose frame body 201 to form a whole.

[0034] like Figure 4 and Figure 7 As shown, the pipeline assembly 3 includes a slow-release pipeline 301 and a through pipeline 302, and the through pipeline 302 is connected around the outside of the slow-release pipeline 301;

[0035] The sustained-release tube 301 can be used to deliver the drug solution to the nasal cavity in a sustained-release manner, and multiple sustained-release tubes 301 can be connected through the through tube 302. Because the sustained-release tube 301 is too thin, the through tube 302 can be used to make the sustained-release tube 301 have multiple connection ports, thereby preventing the middle part of the sustained-release tube 301 from being partially blocked, resulting in occlusion of one of the tubes, resulting in the inability of the tube to flow liquid, and affecting the sustained-release drug solution effect of the device.

[0036] like Figure 2As shown, the front and rear sides of the upper nose bridge component 1 are connected to the first connecting component 4, and the upper end of the upper nose bridge component 1 is connected to the second connecting component 5, and the end of the second connecting component 5 away from the upper nose bridge component 1 is connected to the storage box 6;

[0037] The first connecting component 4 and the second connecting component 5 can facilitate the connection between the upper nose frame component 1 and the storage box 6, so that the device forms a whole, thereby facilitating the fixation of the device.

[0038] like Figure 1 and Figure 2 As shown, the first connecting component 4 includes a first hanging head 401, a first hook 402 and a first connecting belt 403, and the first hanging head 401 is connected to the first hook 402 on one side away from the upper nose bridge component 1, and the first connecting belt 403 is connected to the right side of the first hook 402;

[0039] The first hook 402 can be hung on the first hanging head 401, so as to connect the first connecting belt 403 to the upper nose frame assembly 1, so as to facilitate fixing the device on the head. At the same time, the connection between the first hanging head 401 and the first hook 402 is more convenient and stable, so that the device can be more easily assembled.

[0040] like Figure 2 As shown, the second connecting assembly 5 includes a second hanging head 501, a second hook 502 and a second connecting belt 503, and the upper end of the second hanging head 501 is connected to the second hook 502, and the right side of the second hook 502 is connected to the second connecting belt 503;

[0041] The second hook 502 can be hung on the second hanging head 501, so as to connect the second connecting belt 503 to the upper nose frame assembly 1, so as to facilitate fixing the device on the head. At the same time, the connection between the second hanging head 501 and the second hook 502 is more convenient and stable, so that the device can be more easily assembled.

[0042] like Figure 5 As shown, a winding assembly 7 is installed inside the storage box 6, and the winding assembly 7 includes a rotating shaft 701, a damping spring 702, a friction block 703 and a winding disk 704. The damping spring 702 is connected to the outside of the rotating shaft 701, and the friction block 703 is connected to the side of the damping spring 702 away from the rotating shaft 701, and the winding disk 704 is connected to the side of the friction block 703 away from the damping spring 702;

[0043] By rotating the rotating shaft 701, the winding disk 704 can wind up the second connecting belt 503 and the first connecting belt 403, so that the device can be stably fixed to the head and the stability of the device can be increased. At the same time, the damping spring 702 can push the friction block 703, so that the friction force between the friction block 703 and the winding disk 704 can drive the winding disk 704 to rotate. When the winding is too tight, the friction block 703 and the winding disk 704 can slip, thereby preventing the winding from being too tight and affecting the comfort.

[0044] like Figure 6 As shown, the right side of the rotating shaft 701 is connected with a rotating assembly 8, and the rotating assembly 8 includes a rotating head 801, a second connecting head 802, a rotating plate 803 and a telescopic connecting rod 808, the left side of the rotating head 801 is inlaid with the second connecting head 802, and the rotating head 801 is internally connected with the rotating plate 803, and the telescopic connecting rod 808 is welded to the middle of the left side of the rotating plate 803, the rotating assembly 8 also includes an inlaid head 804, an inner locking plate 805, a telescopic rod 806 and a telescopic spring 807, and the left side of the rotating plate 803 is connected with the inlaid head 804, the left side of the inlaid head 804 is connected with the inner locking plate 805, and the left side of the inner locking plate 805 is connected with the telescopic rod 806, and the outside of the telescopic rod 806 is connected with the telescopic spring 807;

[0045] The rotating plate 803 is pressed to make the inner locking plate 805 withdraw from the fixed position of the rotating head 801, and then the rotating head 801 is rotated by relying on the rotating structure between the rotating head 801 and the second connecting head 802, so that the rotating plate 803 drives the telescopic connecting rod 808 to rotate, thereby driving the rotating shaft 701 to rotate. After the winding is completed, the rotating head 801 is released, and the inner locking plate 805 can be pushed back to the front end of the rotating head 801 by relying on the elastic telescopic structure formed between the telescopic rod 806 and the telescopic spring 807 and the storage box 6 to lock the rotating head 801 to prevent the rotating head 801 from rotating, thereby preventing the rotating head 801 from being forced to rotate after the tightness is adjusted, affecting the tightness. At the same time, only the rotating plate 803 needs to be pressed to make the rotating head 801 continue to rotate to adjust the wearing tightness of the equipment, which is convenient for adjusting the tightness of the equipment, thereby facilitating the fixation and stability of the equipment.

[0046] Working principle: First, insert the inner nose frame assembly 2 into the nostrils, connect the two inner nose frame bodies 201 through the connecting frame 202, so that the device can be easily installed in the two nostrils, and contact the inside of the nostrils through the contact pad 204 to increase comfort, and then slightly heat the upper nose frame assembly 1 to soften the paraffin inside the receiving cavity 103, and then press the device onto the nose, the soft pad 102 will fit the shape of the nose closely with the paraffin, and then connect the inner nose frame assembly 2 with the upper nose frame assembly 1 through the first magnet 105 and the second magnet 203, and firmly install the device on the nose, and then hang the first hook 402 The first hook 502 is hung on the first hanging head 401, and the second hook 502 is hung on the second hanging head 501, so that the device is fixed on the head through the first connecting belt 403 and the second connecting belt 503, increasing the stability of the device fixation, pressing the rotating plate 803, so that the inner locking plate 805 is withdrawn from the fixing position of the rotating head 801, and then the rotating head 801 is rotated by relying on the rotating structure between the rotating head 801 and the second connecting head 802, so that the rotating plate 803 drives the telescopic connecting rod 808 to rotate, thereby driving the rotating shaft 701 to rotate, and rotating the rotating shaft 701 can make the winding disk 704 rotate to the second connecting belt 503 and the first connecting belt 403 are wound up, so that the device can be stably fixed to the head, the damping spring 702 can push the friction block 703, and the friction force between the friction block 703 and the winding disk 704 can drive the winding disk 704 to rotate. When the winding is too tight, the friction block 703 and the winding disk 704 can slip to prevent the winding from being too tight. When the winding is completed, the rotating head 801 is released, and the inner locking plate 805 can be pushed back to the front of the rotating head 801 by relying on the elastic telescopic structure formed between the telescopic rod 806 and the telescopic spring 807 and the storage box 6. At the end, the rotating head 801 is locked to prevent the rotating head 801 from rotating and affecting the tightness of the device. When the device is installed, the slow-release pipe 301 can be used to slowly release the medicine into the nostril, which is convenient for the user to add medicine into the nostril. Through the through pipe 302, multiple slow-release pipes 301 can be connected. Because the slow-release pipe 301 is too thin, the through pipe 302 can well make the slow-release pipe 301 have multiple connection ports, thereby preventing the middle part of the slow-release pipe 301 from being partially blocked, resulting in occlusion of one of the pipes, resulting in the pipe being unable to flow liquid.

Claims

1. A sustained-release post-endoscopic nasal conformal choanal plasty stent, characterized in that: The invention comprises an upper nose frame component (1) and an inner nose frame component (2), wherein the upper nose frame component (1) comprises an upper fixing frame (101), a soft cushion (102), a receiving cavity (103), a first connector (104) and a first magnet (105), wherein the lower end of the upper fixing frame (101) is connected to the soft cushion (102), the interior of the upper fixing frame (101) is provided with a receiving cavity (103), and the lower left end of the upper fixing frame (101) is connected to the first connector (104), the interior of the first connector (104) is inlaid with a first magnet (105), and the inner nose frame component (2) is located below the upper nose frame component (1).

2. A sustained-release drug delivery post-endoscopic nasal surgery conformable choanal plasty stent according to claim 1, characterized in that: The inner nose frame assembly (2) comprises an inner nose frame body (201) and a connecting frame (202), and the connecting frame (202) is connected to a side of the inner nose frame body (201) close to the central axis of the upper nose frame assembly (1).

3. A sustained-release drug delivery post-endoscopic nasal surgery conformable choanal plasty stent according to claim 2, characterized in that: The inner nose frame component (2) further comprises a second magnet (203) and a contact pad (204), and the second magnet (203) is embedded at the upper end of the inner nose frame body (201), a pipe component (3) is arranged outside the inner nose frame body (201), and the outside of the pipe component (3) is wrapped with a contact pad (204).

4. A sustained-release drug delivery post-endoscopic nasal surgery conformable choanal plasty stent according to claim 3, characterized in that: The pipeline assembly (3) comprises a slow-release pipeline (301) and a through-pipe (302), and the through-pipe (302) is connected to the outside of the slow-release pipeline (301) in a surrounding manner.

5. The sustained-release post-endoscopic nasal surgery conformable choanal plasty stent according to claim 1, characterized in that: The front and rear sides of the upper nose frame assembly (1) are connected to a first connection assembly (4), and the upper end of the upper nose frame assembly (1) is connected to a second connection assembly (5), and the end of the second connection assembly (5) away from the upper nose frame assembly (1) is connected to a storage box (6).

6. The sustained-release post-endoscopic nasal surgery conformable choanal plasty stent according to claim 5, characterized in that: The first connecting component (4) comprises a first hanging head (401), a first hook (402) and a first connecting belt (403), wherein the first hanging head (401) is connected to the first hook (402) on a side away from the upper nose frame component (1), and the first connecting belt (403) is connected to the right side of the first hook (402).

7. The sustained-release drug delivery post-endoscopic nasal surgery conformable choanal plasty stent according to claim 5, characterized in that: The second connecting component (5) comprises a second hanging head (501), a second hook (502) and a second connecting belt (503), wherein the upper end of the second hanging head (501) is connected to the second hook (502), and the right side of the second hook (502) is connected to the second connecting belt (503).

8. The sustained-release drug delivery post-endoscopic nasal surgery conformable choanal plasty stent according to claim 5, characterized in that: A winding assembly (7) is installed inside the storage box (6), and the winding assembly (7) comprises a rotating shaft (701), a damping spring (702), a friction block (703) and a winding disk (704); the outside of the rotating shaft (701) is connected to the damping spring (702), and the side of the damping spring (702) away from the rotating shaft (701) is connected to the friction block (703), and the side of the friction block (703) away from the damping spring (702) is connected to the winding disk (704).

9. The sustained-release drug delivery post-endoscopic nasal surgery conformable choanal plasty stent according to claim 8, characterized in that: The right side of the rotating shaft (701) is connected to a rotating assembly (8), and the rotating assembly (8) comprises a rotating head (801), a second connecting head (802), a rotating plate (803) and a telescopic connecting rod (808); the left side of the rotating head (801) is inlaid with the second connecting head (802), and the interior of the rotating head (801) is connected to the rotating plate (803); and the telescopic connecting rod (808) is welded to the middle of the left side of the rotating plate (803).

10. The sustained-release drug delivery post-endoscopic nasal surgery conformable choanal plasty stent according to claim 9, characterized in that: The rotating assembly (8) further comprises an inlay head (804), an inner locking plate (805), a telescopic rod (806) and a telescopic spring (807), wherein the left side of the rotating plate (803) is connected with the inlay head (804) all around, the left side of the inlay head (804) is connected with the inner locking plate (805), the left side of the inner locking plate (805) is connected with the telescopic rod (806), and the outside of the telescopic rod (806) is connected with the telescopic spring (807).

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