Debridement drainage instrument for necrotic focus of acute pancreatitis

By designing a debridement and drainage device for necrotic lesions in acute pancreatitis with wearable components and automated debridement and drainage components, the problems of inconvenient operation and infection risk in existing technologies have been solved, achieving stable connection and automated debridement and drainage.

CN121102597APending Publication Date: 2025-12-12NANJING FIRST HOSPITAL
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Patent Information

Application Number
CN202511361921.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

In existing techniques, debridement of necrotic lesions in acute pancreatitis requires medical staff to hold instruments, which is inconvenient and carries the risk of infection at the puncture site.

Method used

An acute pancreatitis necrotic lesion debridement and drainage device was designed, comprising a wearable component, an irrigation tube, and a debridement and drainage component. The wearable component is fixed to the patient, the irrigation tube is left at the necrotic lesion, a sealing connection is achieved using a connecting component, and the debridement and drainage component is driven by a motor for automated operation.

Benefits of technology

It achieves stable connection and sealing without requiring medical staff to hold the instruments, reducing operational shaking and infection risks, and improving the convenience and safety of debridement and drainage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an acute pancreatitis necrotic focus debridement drainage instrument, which comprises a wearing assembly, the wearing assembly comprises a connecting band female end and a connecting band auxiliary end, the connecting band female end is worn on a patient, a hole is formed in the connecting band female end, and the hole is arranged corresponding to a pancreas puncture part of the patient; the connecting belt belt end is arranged on the connecting belt female end and detachably connected with the connecting belt female end, a connecting hole is formed in the connecting belt belt end, and the connecting hole corresponds to the hole; the flushing pipe is reserved at the pancreatic necrosis abscess part of the patient and located in the hole and the connecting hole, a connecting assembly is arranged on the connecting hole, and the flushing pipe is in limiting connection with the end of the connecting belt through the connecting assembly; the debridement and drainage assembly is arranged in the flushing pipe and used for conducting debridement and drainage on the pancreas necrosis abscess part of the patient. Stable connection of the flushing pipe is achieved, debridement and drainage of the flushing pipe are facilitated, the sealing performance of a puncture part is guaranteed, and external bacteria, impurities and the like are prevented from entering the body of a patient to cause infection.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a necrotic focus debridement and drainage device for acute pancreatitis. BACKGROUND

[0002] Puncture and drainage for pancreatitis refers to drainage treatment of abdominal cavity encapsulated effusion, peripancreatic abscess or pancreatic pseudocyst and other lesions formed when a large amount of exudate appears around the pancreas through interventional means. Under the guidance of Doppler ultrasound or multi-slice spiral CT, a drainage tube is placed into a peripancreatic abscess or effusion cavity through a puncture needle to completely drain the exudate and pus. This puncture and drainage method can effectively reduce the compression and irritation of abdominal effusion or pus on organs, relieve abdominal distension and improve pancreatitis-related symptoms.

[0003] When the pancreas is inflamed, necrotic foci are produced, at which time debridement of the necrotic foci is needed to effectively prevent or reduce local infection and improve local blood circulation and promote repair of damaged tissue. In the prior art, the drainage device needs to be extended into the patient's body by medical personnel, and the necrotic foci are removed by flushing with medicinal liquid. The debridement and drainage device in the prior art needs to be held and operated by medical personnel, which brings a certain burden to medical personnel during operation, is prone to shaking and is inconvenient to operate, and the puncture site is exposed to air and is at risk of bacterial infection.

[0004] Therefore, there is an urgent need for a necrotic focus debridement and drainage device for acute pancreatitis to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a necrotic focus debridement and drainage device for acute pancreatitis to solve the above problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present application provides the following scheme: the present application provides a necrotic focus debridement and drainage device for acute pancreatitis, comprising:

[0007] The wearing assembly comprises a connection belt mother end and a connection belt child end, the connection belt mother end is worn on the patient, a hole is formed in the connection belt mother end, and the hole is arranged correspondingly to the puncture site of the patient's pancreas; the connection belt child end is arranged on the connection belt mother end and detachably connected with the connection belt mother end, a connection hole is formed in the connection belt child end, and the connection hole is arranged correspondingly to the hole;

[0008] The flushing pipe is left in the necrotic abscess site of the patient's pancreas, the flushing pipe is located in the hole, the connection hole and the connection assembly arranged on the connection hole, and the flushing pipe is limitingly connected with the connection belt child end through the connection assembly;

[0009] A debridement and drainage assembly is arranged in the flushing tube for debridement and drainage of a pancreatic necrotic abscess site of a patient.

[0010] Preferably, the connecting assembly comprises a connecting ring, one end of a sealing bag is fixedly connected to the bottom end of the outer side wall of the connecting ring, the other end of the sealing bag is fixedly connected to the inner side wall of the connecting hole, the inner diameter of the connecting ring is matched with the outer diameter of the flushing tube, a first groove is arranged on the outer side wall of the flushing tube, a connecting piece is arranged on the connecting ring, and the connecting ring is sleeved on the flushing tube and is sealingly connected with the first groove through the connecting piece.

[0011] Preferably, a second groove is arranged on the inner side wall of the connecting ring, the first groove and the second groove are correspondingly arranged, the connecting piece comprises a plurality of sealing plates which are equidistantly arranged in the second groove in the circumferential direction, the sealing plates are matched with the first groove, a cavity is arranged in the second groove, one end of a slide rod is fixedly connected to one end of the sealing plate away from the first groove, one end of an adjusting rod is threadedly connected to the other end of the slide rod which extends into the cavity, the other end of the adjusting rod extends out of the connecting ring and is fixedly connected with an adjusting plate, a first bevel gear is rotatably connected to the bottom end of the cavity, and a second bevel gear is coaxially fixedly connected to the adjusting rod, and the first bevel gear is engaged with the second bevel gear.

[0012] Preferably, the plurality of sealing plates respectively extend into the first groove to form an annular sealing ring, first sealing capsules are fixedly connected to the two side walls and the side close to the first groove of the sealing plate respectively, and a second sealing capsule is fixedly connected to the inner side wall of the first groove.

[0013] Preferably, the debridement and drainage assembly comprises a cleaning piece and a drainage piece, an adjusting piece is arranged in the flushing tube, and the cleaning piece and the drainage piece are correspondingly arranged with the adjusting piece; the cleaning piece comprises a liquid inlet pipe, the drainage piece comprises a drainage pipe, two first channels are arranged at the top end of the flushing tube, the liquid inlet pipe and the drainage pipe are fixedly connected with and communicated with the two first channels respectively, and the two first channels are correspondingly arranged with the adjusting piece respectively.

[0014] Preferably, the adjusting piece comprises a rotating shaft which is rotatably connected to the flushing tube, a rotating disc is fixedly connected to the rotating shaft, a second channel is arranged in the rotating disc, and two third channels are arranged at the bottom of the flushing tube, and the two first channels are communicated with the two third channels through the second channel respectively.

[0015] Preferably, the rotating disc is provided with a driving groove, a driving rod is slidably connected in the driving groove, one end of the driving rod extends out of the driving groove and is rotatably connected with one end of a driving plate, a motor is fixedly connected to the flushing pipe, an output shaft of the motor extends into the flushing pipe and is fixedly connected with one end of a connecting shaft, and the other end of the connecting shaft is fixed to the other end of the driving plate.

[0016] Preferably, the drainage tube is provided with a negative pressure pump.

[0017] Preferably, a magnet is fixedly connected in each of the first sealing bag and the second sealing bag, and adjacent two magnets are provided with opposite poles.

[0018] Preferably, the female end of the connecting belt and the male end of the connecting belt are attached by a magic tape, and the female end of the connecting belt is an elastic connecting belt.

[0019] Compared with the prior art, the present application has the following advantages and technical effects:

[0020] The acute pancreatitis necrotic focus debridement and drainage device provided by the application is worn on the patient's body through the wearing assembly, and the puncture site is exposed, the puncture and drainage of the pancreatic abscess site of the patient are realized through the flushing pipe, the flushing pipe is connected with the patient through the connecting assembly after puncture, the connection is stable, the medical staff does not need to hold the device, the hands of the medical staff are freed, the debridement and drainage of the debridement and drainage assembly are facilitated, the sealing property of the puncture site is ensured, bacteria and impurities in the outside world are prevented from entering the patient's body to cause infection, and the patient is prevented from suffering from secondary injury. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 It is a schematic diagram of the overall structure of the present application; Figure 1

[0024] Figure 3 It is a schematic diagram of the internal structure of the connecting ring of the present application;

[0025] Figure 4 It is a schematic diagram of the structure of the rotating disc of the present application;

[0026] Figure 5 ​Structure schematic diagram of embodiment two of the present application;

[0027] Wherein, 1, the female end of the connecting belt; 2, the male end of the connecting belt; 3, the flushing pipe; 4, the connecting ring; 5, the sealing bag; 6, the first groove; 7, the second groove; 8, the sealing plate; 9, the sliding rod; 10, the adjusting rod; 11, the adjusting plate; 12, the first bevel gear; 13, the second bevel gear; 14, the first sealing capsule; 15, the second sealing capsule; 16, the liquid inlet pipe; 17, the drainage pipe; 18, the first channel; 19, the rotating shaft; 20, the rotating disc; 21, the second channel; 22, the third channel; 23, the driving groove; 24, the driving rod; 25, the driving plate; 26, the motor; 27, the connecting shaft; 28, the negative pressure pump; 29, the magnet; 30, the clamping ring; 31, the clamping buckle; 32, the first protrusion; 33, the second protrusion. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0030] Reference Figures 1-4 The present application provides a necrotic focus debridement and drainage device for acute pancreatitis, comprising:

[0031] The wearing assembly comprises the female end 1 of the connecting belt and the male end 2 of the connecting belt. The female end 1 of the connecting belt is worn on the patient. A hole is formed in the female end 1 of the connecting belt, and the hole is arranged correspondingly to the pancreas puncture site of the patient. The male end 2 of the connecting belt is arranged on the female end 1 of the connecting belt and detachably connected to the female end 1 of the connecting belt. A connecting hole is formed in the male end 2 of the connecting belt, and the connecting hole is arranged correspondingly to the hole.

[0032] The flushing pipe 3 is left in the necrotic abscess site of the pancreas of the patient. The flushing pipe 3 is located in the hole and the connecting hole. A connecting assembly is arranged on the connecting hole. The flushing pipe 3 is limitingly connected to the male end 2 of the connecting belt through the connecting assembly.

[0033] The debridement and drainage assembly is arranged in the flushing pipe 3 and used for debridement and drainage of the abscess site of the pancreas of the patient.

[0034] Specific to the application of the flushing pipe 3 is retained in the patient's pancreatic necrotic abscess site after puncture. Puncture is performed under the guidance of Doppler ultrasound or multi-slice spiral CT to the pancreatic necrotic abscess site. The flushing pipe 3 is retained after puncture and later flushing. This is the prior art and will not be described in detail here.

[0035] Further optimization scheme, reference Figure 2 The connecting assembly comprises a connecting ring 4, one end of a sealing bag 5 is fixedly connected to the outer side wall of the connecting ring 4, the other end of the sealing bag 5 is fixedly connected to the inner side wall of the connecting hole, the inner diameter of the connecting ring 4 is matched with the outer diameter of the flushing pipe 3, a first groove 6 is formed on the outer side wall of the flushing pipe 3, and a connecting piece is arranged on the connecting ring 4. The connecting ring 4 is sleeved on the flushing pipe 3 and is sealingly connected with the first groove 6 through the connecting piece.

[0036] The flushing pipe 3 is punctured on the patient, the connecting ring 4 is sleeved on the flushing pipe 3, and the connecting ring 4 is connected with the first groove 6 through the connecting piece, so that the flushing pipe 3 is fixed and the puncture site is sealed.

[0037] Further optimization scheme, reference Figure 3 A second groove 7 is formed on the inner side wall of the connecting ring 4, the first groove 6 and the second groove 7 are correspondingly arranged, the connecting piece comprises a plurality of sealing plates 8 which are arranged in the second groove 7 at equal intervals in the circumferential direction, the sealing plates 8 are matched with the first groove 6, a cavity is formed in the second groove 7, one end of a slide rod 9 is fixedly connected to one end of a sealing plate 8 away from the first groove 6, the other end of the slide rod 9 is inserted into the cavity and is threadedly connected to one end of an adjusting rod 10, the other end of the adjusting rod 10 is protruded from the connecting ring 4 and is fixedly connected to an adjusting plate 11, a first bevel gear 12 is rotatably connected to the bottom of the cavity, a second bevel gear 13 is coaxially fixedly connected to the adjusting rod 10, and the first bevel gear 12 is engaged with the second bevel gear 13.

[0038] The adjusting plate 11 is manually twisted to drive the adjusting rod 10 to rotate, so that the threadedly connected slide rod 9 drives the sealing plate 8 to extend into the first groove 6 to realize the connection and sealing of the connecting ring 4 and the flushing pipe 3.

[0039] Further optimization scheme, the plurality of sealing plates 8 respectively extend into the first groove 6 to form an annular sealing ring, the first sealing bag 14 is fixedly connected to the two side walls of the sealing plate 8 and the side close to the first groove 6, the second sealing bag 15 is fixedly connected to the inner side wall of the first groove 6, and the first sealing bag 14 and the second sealing bag 15 are correspondingly arranged.

[0040] The first sealing bag 14 and the second sealing bag 15 are further arranged to ensure the sealing effect.

[0041] Further optimization scheme, reference Figure 1The debridement and drainage assembly comprises a cleaning member and a drainage member, and the flushing pipe 3 is provided with an adjusting member, and the cleaning member and the drainage member are correspondingly arranged with the adjusting member; the cleaning member comprises a liquid inlet pipe 16, the drainage member comprises a drainage pipe 17, and the top end of the flushing pipe 3 is provided with two first channels 18; the liquid inlet pipe 16 and the drainage pipe 17 are fixedly connected with the two first channels 18 and are in communication, and the two first channels 18 are correspondingly arranged with the adjusting member.

[0042] Further optimization scheme, refer to Figure 4 The adjusting member comprises a rotating shaft 19 rotatably connected to the flushing pipe 3, a rotating disc 20 fixedly connected to the rotating shaft 19, a second channel 21 formed in the rotating disc 20, and two third channels 22 formed in the bottom of the flushing pipe 3, and the two first channels 18 are respectively communicated with the two third channels 22 through the second channel 21.

[0043] By setting the two first channels 18 and the two third channels 22 and the driving second channel 21 to swing and select communication, the selection operation of flushing and drainage is realized.

[0044] Further optimization scheme, the rotating disc 20 is provided with a driving groove 23, a driving rod 24 is slidably connected in the driving groove 23, one end of the driving rod 24 extends out of the driving groove 23 and is rotatably connected to one end of a driving plate 25, a motor 26 is fixedly connected to the flushing pipe 3, an output shaft of the motor 26 extends into the flushing pipe 3 and is fixedly connected to one end of a connecting shaft 27, and the other end of the connecting shaft 27 is fixedly connected to the other end of the driving plate 25.

[0045] The motor 26 drives the driving plate 25 to rotate, and when the driving plate 25 rotates, the driving rod 24 rotatably connected to the driving plate 25 slides in the driving groove 23, and at the same time, the rotating disc 20 swings, and when the rotating disc 20 swings, the two connecting channels are selected, and flushing or drainage is selected.

[0046] Further optimization scheme, the drainage pipe 17 is provided with a negative pressure pump 28.

[0047] The negative pressure pump 28 is arranged to realize drainage treatment, so as to ensure the drainage efficiency.

[0048] Further optimization scheme, the first sealing bag 14 and the second sealing bag 15 are fixedly connected with magnets 29, and the adjacent two magnets 29 are arranged with opposite poles.

[0049] The opposite poles of the magnets 29 ensure the sealing effect between the adjacent two first sealing bags 14 and the first sealing bag 14 and the second sealing bag 15, so as to ensure the sterile environment.

[0050] Further optimization scheme, the connection belt mother end 1 and the connection belt daughter end 2 are connected by magic tape, and the connection belt mother end 1 is an elastic connection belt.

[0051] The magic tape is arranged to be convenient for wearing on the patient's body.

[0052] Embodiment two:

[0053] With reference to Figure 5 In this embodiment, the inner wall of the first groove 6 is fixedly connected with a clamping ring 30, and the end of the sealing plate 8 close to the clamping ring 30 is fixedly connected with a clamping buckle 31, and the clamping ring 30 is matched with the clamping buckle 31.

[0054] The clamping buckle 31 is buckled on the clamping ring 30, which further ensures the sealing connection between the sealing plate 8 and the flushing pipe 3.

[0055] Further, the cross section of the clamping ring 30 is a circular structure, the cross section of the clamping buckle 31 is a C-shaped structure, and the material of the clamping buckle 31 is an elastic metal material, the inner diameter of the C-shaped structure is matched with the outer diameter of the circular structure, and the C-shaped structure is buckled on the circular structure, which further ensures the sealing after buckling.

[0056] Further, the outer side wall of the C-shaped structure is fixedly connected with a first protrusion 32 at both ends, and the inner side wall of the C-shaped structure is fixedly connected with a plurality of second protrusions 33 at equal intervals in the circumferential direction, and the first protrusion 32 is arranged in contact with the top end and the bottom end of the first groove 6, and the second protrusion 33 is arranged in contact with the outer side wall of the clamping ring 30.

[0057] Specifically, the cross section of the first protrusion 32 and the second protrusion 33 is a semicircular structure, which further ensures the sealing effect and ensures the sealing of the sterile environment of the puncture part.

[0058] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0059] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. An apparatus for debridement and drainage of necrotic foci of acute pancreatitis, characterized in that, The utility model relates to a kind of pancreatic necrotic abscess drainage device, including: Wearing component, including connecting band female end (1) and connecting band male end (2), the connecting band female end (1) is worn on patient, hole is opened in the connecting band female end (1), the hole is set correspondingly with patient pancreas puncture site;The connecting band male end (2) is set on the connecting band female end (1) and is detachably connected with the connecting band female end (1), connecting hole is opened in the connecting band male end (2), the connecting hole is set correspondingly with the hole; Irrigation pipe (3) is placed in the pancreatic necrotic abscess site of patient, the irrigation pipe (3) is located in the hole, the connecting hole, connecting component is set on the connecting hole, and the irrigation pipe (3) is connected with the connecting band male end (2) by the connecting component. Debridement and drainage component is set in the irrigation pipe (3), and is used for debridement and drainage to the pancreatic necrotic abscess site of patient.

2. The apparatus according to claim 1, wherein the apparatus is characterized by: The connecting component includes connecting ring (4), one end of sealing bag (5) is fixedly connected with the bottom end of the outer side wall of the connecting ring (4), the other end of the sealing bag (5) is fixedly connected with the inner side wall in the connecting hole, the inner diameter of the connecting ring (4) is matched with the outer diameter of the irrigation pipe (3), the first groove (6) is opened in the outer side wall of the irrigation pipe (3), the connecting ring (4) is provided with connecting piece, the connecting ring (4) is sleeved on the irrigation pipe (3) and is sealedly connected with the first groove (6) by the connecting piece.

3. The apparatus according to claim 2, wherein the apparatus is characterized by: The second groove (7) is opened in the inner side wall of the connecting ring (4), the first groove (6) and the second groove (7) are correspondingly arranged, the connecting piece includes a plurality of sealing plates (8) which are equidistantly arranged in the second groove (7) along the circumference, the sealing plate (8) is matched with the first groove (6), the second groove (7) is provided with a cavity, one end of the sliding rod (9) is fixedly connected with the end of the sealing plate (8) away from the first groove (6), the other end of the sliding rod (9) is inserted into the cavity and is threadedly connected with one end of the adjusting rod (10), the other end of the adjusting rod (10) is protruded from the connecting ring (4) and is fixedly connected with the adjusting plate (11), the first bevel gear (12) is rotatably connected with the bottom end in the cavity, the second bevel gear (13) is coaxially fixedly connected with the adjusting rod (10), and the first bevel gear (12) is engaged with the second bevel gear (13).

4. The apparatus according to claim 3, wherein the apparatus is characterized in that: A plurality of sealing plates (8) are respectively inserted into the first groove (6) to form annular sealing ring, the first sealing bag (14) is fixedly connected on the both side walls and the side close to the first groove (6) of the sealing plate (8) respectively, the second sealing bag (15) is fixedly connected on the inner side wall in the first groove (6), and the first sealing bag (14) and the second sealing bag (15) are correspondingly arranged.

5. The apparatus according to claim 4, wherein the apparatus is characterized by: The debridement and drainage assembly comprises a cleaning member and a drainage member, and an adjusting member is arranged in the flushing pipe (3), and the cleaning member and the drainage member are arranged correspondingly with the adjusting member; the cleaning member comprises a liquid inlet pipe (16), the drainage member comprises a drainage pipe (17), two first channels (18) are arranged at the top end of the flushing pipe (3), the liquid inlet pipe (16) and the drainage pipe (17) are fixedly connected with the two first channels (18) and are in communication, and the two first channels (18) are arranged correspondingly with the adjusting member.

6. The apparatus according to claim 5, wherein the apparatus is characterized in that: The adjusting member comprises a rotating shaft (19) which is rotatably connected to the flushing pipe (3), a rotating disc (20) is fixedly connected to the rotating shaft (19), a second channel (21) is arranged in the rotating disc (20), two third channels (22) are arranged at the bottom of the flushing pipe (3), and the two first channels (18) are in communication with the two third channels (22) through the second channel (21).

7. The apparatus according to claim 6, wherein the apparatus is characterized by: A driving groove (23) is arranged on the rotating disc (20), a driving rod (24) is slidably connected in the driving groove (23), one end of the driving rod (24) extends out of the driving groove (23) and is rotatably connected to one end of a driving plate (25), a motor (26) is fixedly connected to the flushing pipe (3), one end of a connecting shaft (27) is fixedly connected to the output shaft of the motor (26) which extends into the flushing pipe (3), and the other end of the connecting shaft (27) is fixed to the other end of the driving plate (25).

8. The apparatus according to claim 7, characterized in that: A negative pressure pump (28) is mounted on the drainage pipe (17).

9. The apparatus according to claim 8, wherein the apparatus is characterized by: Magnets (29) are fixedly connected in the first sealing bag (14) and the second sealing bag (15), and adjacent two magnets (29) are arranged with opposite poles.

10. The apparatus according to claim 9, wherein the apparatus is characterized by: The connection belt mother end (1) and the connection belt daughter end (2) are adhered by magic tape, and the connection belt mother end (1) is an elastic connection belt.