CN222708752U

CN222708752U - A seepage collection device

Info

Publication number: CN222708752U
Application number: CN202420560320.1U
Authority: CN
Inventors: 张莹; 王云; 单娜
Original assignee: Beijing Cancer Hospital
Current assignee: Beijing Cancer Hospital
Priority date: 2023-05-04
Filing date: 2024-03-21
Publication date: 2025-04-04
Anticipated expiration: 2034-03-21
Also published as: CN117122751A

Abstract

The utility model provides a seepage collection device, including a seepage barrier body; wherein the seepage barrier body includes a closed annular structure, the annular structure has a first end face, which is used to fit with the skin around the puncture point of the human body, the inner wall of the annular structure is used to block the seepage at the puncture point of the human body, and the seepage barrier body has a through hole for the drainage tube to pass through. The seepage barrier body in the utility model is equivalent to a chassis with a certain thickness fixed to the skin around the puncture point, which can support the medical dressing, not only to achieve the sealing of the puncture point, but also to avoid direct contact between the puncture point and the medical dressing, so that the puncture point wound is breathable and the risk of infection is reduced; the seepage barrier body can also collect the seepage, solving the problem of drainage fluid leaking outward from the puncture point after clinical catheterization; the seepage barrier body has a through hole for the drainage tube to pass through, avoiding the phenomenon of loosening of the medical dressing during replacement due to leakage and causing the tube to fall off.

Description

Seepage liquid collecting device

Technical Field

The utility model relates to the field of disposable medical auxiliary materials, in particular to a seepage collecting device.

Background

Abdominal drainage is one of the most common and important basic technologies for abdominal surgery, and drainage tubes are placed in the abdominal cavity to drain seepage, pus and the like in the abdominal cavity to the outside of the body, so that wound healing in the body is promoted, and secondary infection is avoided. In recent years, the abdominal cavity drainage technology is widely applied to the auxiliary treatment of a large number of ascites patients caused by different reasons, so that the pain and the mental pressure caused by repeated puncture and ascites release of the patients are relieved, but in the continuous drainage process, the condition of seepage of the orifice of a drainage tube is frequently seen clinically, the risk of retrograde infection and pipeline slipping of the patients is increased by frequently changing the dressing, the psychological pressure of the patients and families is increased, and the workload of medical staff is increased.

The thoracocentesis catheterization is a clinically more common method for treating hydrothorax, and drainage is carried out through an indwelling drainage tube, so that administration can be carried out through the drainage tube conveniently. The indication of the thoracocentesis catheterization can be a large amount of thoracocentesis water which is repeatedly and continuously generated in the thoracocentesis caused by reasons such as tumors, has no obvious adhesion, wrapping or separation, is extracted for a small number of times and cannot be pumped out, and can be continuously generated or is required to repeatedly puncture a patient with flushing liquid, so that the thoracocentesis catheterization can reduce the puncture times, and the pain of the patient is relieved.

In clinical work, during the period of retaining the abdominal cavity or the intrathoracic drain tube due to various reasons, the pressure of the accumulated liquid in the abdominal cavity or the intrathoracic drain tube is overlarge, and the mouth of the drain tube is penetrated with a large amount of liquid at the puncture part, so that the skin, the bed sheet or the clothes of a patient are soaked, and the skin is flushed, dermatitis and even ulceration are caused. The pain and discomfort of the patient greatly increase the psychological burden of the patient and the family members thereof.

In the prior art, the treatment of the indwelling abdominal cavity or the intrathoracic drain at the puncture part generally adopts an absorptive medical dressing, such as gauze, foam dressing and the like, to absorb the seepage. If the puncture part is permeated with liquid, the dressing should be replaced in time, and if the dressing is loose and polluted, the dressing should be replaced immediately. The current prevention and treatment method requires skilled medical staff to treat and has complex operation, dressing needs to be repeatedly replaced after the penetration of liquid occurs at the puncture site, and the periphery of the puncture site of a patient is easy to be infected.

Disclosure of utility model

In view of the above, embodiments of the present utility model provide a permeate collection device that obviates or mitigates one or more of the disadvantages of the prior art.

The technical scheme of the utility model is as follows:

a seepage collection device comprises a seepage blocking main body;

The liquid seepage blocking main body is provided with a first end face and is used for being mutually attached to the skin around the human body puncture point, the inner side wall face of the annular structure is used for blocking liquid seepage of the human body puncture point, and the liquid seepage blocking main body is provided with a through hole for the drainage tube to pass through.

Optionally, the first end face of the liquid-permeable barrier body has an adhesive layer for adhesive sealing with the skin surrounding the human body puncture site.

Optionally, the device further comprises a film layer attached to at least a second end surface of the liquid permeation blocking main body, wherein the second end surface is an end surface opposite to the first end surface of the annular structure.

Optionally, the film pasting layer is larger than the first end face and is used for being attached to the annular structure and the skin around the outer side of the annular structure, the annular structure is provided with an outer side face, the outer side face is a transition inclined face or a transition cambered face and is used for achieving smooth attachment of the film pasting layer, and the width of the annular structure on the first end face is larger than that of the annular structure on the second end face.

Optionally, the device further comprises a sealed drainage bag for connection with the liquid-permeable barrier body for collecting liquid-permeable in the liquid-permeable barrier body.

Optionally, an anti-reflux structure is arranged in the sealed drainage bag and is used for preventing liquid in the sealed drainage bag from reversely flowing into the seepage blocking main body.

Optionally, the liquid-permeable blocking main body is provided with a drainage structure and is used for communicating and connecting the liquid-permeable blocking main body with the sealed drainage bag.

Optionally, the drainage structure comprises:

At least one liquid collecting port arranged on the inner wall of the annular structure of the liquid seepage blocking main body;

the converging channel is arranged in the annular structure of the seepage blocking main body;

A outflow port arranged at the outer side of the annular structure of the seepage blocking main body;

The outflow port is communicated with the liquid collecting port through the converging channel and is used for being communicated with the sealed drainage bag.

Optionally, the liquid-permeable barrier body further comprises an extension protruding from the annular structure, the extension extending outwardly from the annular structure, the outflow opening of the drainage structure being formed at an end of the extension facing away from the annular structure;

Two or more liquid collecting ports are arranged on the inner wall of the annular structure of the liquid seepage blocking main body, each liquid collecting port is communicated with the converging channel, and one outflow port is arranged.

Optionally, the first end face is planar, and/or,

The through hole of the liquid-permeable barrier body intersects, is tangent to or is separated from the first end face, and/or,

The annular structure of the seepage blocking main body is regular or irregular round, oval or polygonal.

Optionally, the film layer adopts a transparent film, and/or,

The seepage blocking main body is made of silica gel.

Compared with the mode of directly applying the medical dressing to the skin around the puncture point in the prior art, the liquid permeation blocking main body 100 in the utility model is equivalent to a chassis fixed on the skin around the puncture point, has a certain thickness, can support the medical dressing, not only realize the sealing of the puncture point, but also avoid the direct contact between the puncture point and the medical dressing, so that the wound of the puncture point is ventilated, the infection risk is reduced, the liquid permeation blocking main body can also avoid the false contact and secondary injury to the wound of the puncture point when the medical dressing is replaced, the protection effect on the wound of the skin puncture point can be better, the liquid permeation blocking main body can also collect the liquid permeation of the puncture point, the problem that the drainage liquid leaks outwards from the puncture point after clinical catheterization is solved, and the liquid permeation blocking main body is provided with a through hole for the drainage tube to pass through, so that the phenomenon that the replacement of the medical dressing loosens due to leakage is avoided.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present utility model are not limited to the above-described specific ones, and that the above and other objects that can be achieved with the present utility model will be more clearly understood from the following detailed description.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and together with the description serve to explain the utility model. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the utility model. Corresponding parts in the drawings may be exaggerated, i.e. made larger relative to other parts in an exemplary device actually manufactured according to the present utility model, for convenience in showing and describing some parts of the present utility model. In the drawings:

Fig. 1 is a perspective view of a seepage collection device in an embodiment of the utility model.

Fig. 2 is a front view of a seepage collection device in an embodiment of the utility model.

Fig. 3 is a cross-sectional view taken along section A-A of fig. 2.

Fig. 4 is a bottom view of a permeate collection device according to an embodiment of the utility model.

Fig. 5 is a cross-sectional view of fig. 4 taken along section C-C.

Fig. 6 is a schematic cross-sectional view of a liquid-permeable collection device attached to a puncture site of a human body according to an embodiment of the present utility model.

Fig. 7 is a schematic plan view of a liquid seepage collecting device attached to a puncture point of a human body according to an embodiment of the utility model.

Fig. 8 is a perspective view of a seepage collection device according to another embodiment of the present utility model.

Reference numerals:

100. The liquid seepage blocking main body comprises 110, an annular structure, 111, a first end face, 112, an inner side wall face, 113, a second end face, 114, a through hole, 115, a liquid collecting port, 116, a converging channel, 117, a outflow port, 118, an outer side face, 120 and an extension part;

200. 300, sealing the drainage bag 310, and a backflow prevention structure;

Detailed Description

The present utility model will be described in further detail with reference to the following embodiments and the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent. The exemplary embodiments of the present utility model and the descriptions thereof are used herein to explain the present utility model, but are not intended to limit the utility model.

It should be noted here that, in order to avoid obscuring the present utility model due to unnecessary details, only structures and/or processing steps closely related to the solution according to the present utility model are shown in the drawings, while other details not greatly related to the present utility model are omitted.

It should be emphasized that the term "comprises/comprising" when used herein is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.

It is also noted herein that the term "coupled" may refer to not only a direct connection, but also an indirect connection in which an intermediate is present, unless otherwise specified.

Hereinafter, embodiments of the present utility model will be described with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

In the prior art, the problem of seepage of the indwelling abdominal cavity or the intrathoracic drain at the puncture site and various complications after seepage are difficult problems in clinical care, and if the seepage of the puncture site can be reasonably controlled, the occurrence of the complications can be reduced to a great extent.

Aiming at the existing treatment mode of the drainage liquid of the abdominal cavity or thoracic cavity puncture point tube, the application discloses a drainage liquid collecting device, which solves the problem that the drainage liquid leaks outwards from the puncture point after the clinical tube is placed, can ensure the dryness of the skin at the puncture point, and the dryness and neatness of clothes, beds and the like of patients, and can also avoid the infection caused by repeatedly replacing auxiliary materials.

As shown in fig. 1 to 5, the liquid permeation and collection device according to the present utility model includes a liquid permeation blocking main body 100.

The liquid-permeable blocking body 100 comprises a closed annular structure 110, the annular structure 110 is provided with a first end face 111 for being mutually attached to the skin around the puncture point of the human body, an inner side wall face 112 of the annular structure 110 is used for blocking liquid permeation of the puncture point of the human body, and the liquid-permeable blocking body 100 is provided with a through hole 114 for the drainage tube to pass through.

The liquid permeation blocking main body of the embodiment of the utility model is matched with the medical dressing for use, and can have two implementation modes. First, ooze liquid separation main part and the split type design of medical dressing, medical dressing repeatedly apply in ooze liquid separation main part's up end promptly, when changing medical dressing, can not contact with puncture point periphery skin, avoid changing the ooze liquid problem of medical dressing repeatedly, avoid taking place the infection. Second, ooze liquid separation main part and medical dressing integral type design, this design is fixed medical dressing in advance in ooze liquid separation main part, when applying ooze liquid separation main part, fix medical dressing promptly simultaneously, realize ooze liquid separation main part top seal by medical dressing or with the area design of medical dressing be greater than ooze liquid separation main part's surface for medical dressing can not only cover ooze liquid separation main part's up end, also can cover ooze liquid separation main part peripheral region, make its leakproofness, better to the fixity of drainage tube.

In some embodiments, as shown in fig. 6, the first end face 111 of the liquid-permeable barrier body 100 has an adhesive layer for adhesive sealing with the skin surrounding the human body puncture site. Further, the adhesive layer is made of parent skin, can be tightly attached to the human skin, and is free from liquid leakage and seepage.

In some embodiments, as shown in fig. 6, the device further includes a film layer 200, where the film layer 200 is attached at least at a position of a second end surface 113 of the liquid-permeable barrier body 100 so as to implement an inner ring seal of the annular structure 110, and the second end surface 113 is an end surface opposite to the first end surface 111 of the annular structure 110.

In the embodiment of fig. 6, the film layer 200 may be a transparent film or a medical dressing in the prior art, such as a disposable hydrocolloid transparent dressing, an alginate dressing, a gelatin sponge, or a gauze dressing combined with a topical transparent film dressing. Optionally, the film layer 200 is made of transparent material at least at the inner ring of the ring structure 110, so as to facilitate observation of the seepage condition of the puncture point of the tube, and further, the film layer 200 has good elasticity and self-adhesion, is convenient and comfortable to use, is waterproof and breathable, prevents secondary infection, and effectively prevents inflammation. Optionally, the second end face 113 of the liquid-permeable barrier body 100 has a surface that facilitates adhesion with the adhesive film layer 200.

In the above embodiment, since the film layer 200 is not in direct contact with the puncture point and the skin of the patient, the film layer 200 is less contaminated, and the repeated replacement of the film layer 200 is greatly reduced.

The film layer 200 not only seals the inner ring position of the annular structure, but also covers a larger area position. Further, as shown in fig. 6-8, the film layer 200 is larger than the first end face 111, and is used for attaching to the annular structure 110 and the outer peripheral skin thereof. In another embodiment, as shown in fig. 8, the annular structure 110 has an outer side surface 118, where the outer side surface 118 is a transitional slope or a transitional cambered surface, so as to achieve smooth adhesion of the film layer 200, and the width of the annular structure 110 at the first end surface 111 is greater than the width at the second end surface 113.

In some embodiments, as shown in FIG. 7, the device further comprises a sealed drainage bag 300, the sealed drainage bag 300 being configured to be coupled to the liquid-permeable barrier body 100 to collect liquid-permeable within the liquid-permeable barrier body 100. The sealed drainage bag 300 is used for collecting the seepage in the seepage blocking main body 100, and avoiding the infection or the pollution of the clothes and the bed of the patient caused by the seepage of the seepage blocking main body 100 due to the excessive aggregation of the seepage.

Further, as shown in fig. 7, an anti-reflux structure 310 is provided in the sealed drainage bag 300, for preventing the liquid in the sealed drainage bag 300 from reversely flowing into the liquid-permeable barrier body 100. Optionally, the anti-reflux structure 310 may be a one-way valve structure, and in other embodiments, the anti-reflux structure 310 may be disposed in the drainage channel of the liquid barrier body 100.

In some embodiments, the liquid-permeable barrier body 100 has a drainage structure for communication and connection of the liquid-permeable barrier body 100 with the sealed drainage bag 300.

As one implementation, as shown in fig. 1 to 5, the drainage structure includes at least one liquid collecting port 115 provided on an inner wall of the annular structure 110 of the liquid permeation blocking body 100, a confluence channel 116 provided inside the annular structure 110 of the liquid permeation blocking body 100, and a liquid outlet 117 provided outside the annular structure 110 of the liquid permeation blocking body 100. Wherein, the outlet 117 communicates with the liquid collecting port 115 through the confluence channel 116, and the outlet 117 is used for communicating with the sealed drainage bag 300. The liquid collecting port 115, the confluence passage 116 and the outflow port 117 are used to realize the seepage discharge function of the seepage blocking main body 100.

The dashed line structure in fig. 1 to 4 represents an invisible structural line inside the object, mainly representing the positions and shapes of the liquid collecting port 115 and the confluence passage 116.

Further, the liquid-permeable barrier body 100 further includes an extension 120 protruding from the annular structure 110, the extension 120 extends outwardly from the annular structure 110, and the outflow opening 117 of the drainage structure is formed at an end of the extension 120 facing away from the annular structure 110. In the embodiment of fig. 7, the film layer 200 is attached to the annular structure 110 and the skin around the outside thereof, but does not cover the end of the outlet 117 of the extension 120, so as to facilitate the disassembly and replacement of the sealed drainage bag 300. The extension 120 facilitates the connection of the liquid-permeable barrier body 100 to the sealed drainage bag 300 and also facilitates the operation of replacing the sealed drainage bag 300.

Alternatively, the connection between the extension 120 and the sealed drainage bag 300 may be a threaded connection, a snap-in connection, or a direct expansion connection made of an organic material such as rubber, while achieving the function of sealing connection.

Alternatively, the ring structure 110 and the extension 120 of the liquid-permeable barrier body 100 may be an integrally formed structure, but are not limited thereto, and may be detachably connected structures.

Further, two or more liquid collecting ports 115 are provided on the inner wall of the annular structure 110 of the liquid permeation blocking body 100, five liquid collecting ports 115 are shown in the embodiment of fig. 2 and 5, but not limited thereto, and other numbers of liquid collecting ports 115 are also possible, for example, the liquid collecting ports 115 may be arranged at intervals on the whole inner circumference of the liquid permeation blocking body 100, each liquid collecting port 115 is communicated with the confluence channel 116, and the outflow port 117 is provided with one but not limited thereto.

In the above embodiment, the extending portion 120 of the liquid-permeable barrier body 100 may be disposed at a position corresponding to the position below the puncture point, so as to better collect the liquid-permeable at the puncture point. Alternatively, the extension 120 and the through hole 114 through which the drainage tube passes may be disposed at a position on the annular structure 110 with an interval of 90 ° or 180 °, but is not limited thereto, and may be at other angles.

In some embodiments, the first end surface 111 of the liquid-permeable barrier body 100 is planar, or may be an arcuate surface that is complementary to the shape of the skin surrounding the human body puncture site. Similarly, the second end surface 113 of the liquid-permeable barrier body 100 may be a planar surface, or may be an arcuate surface complementary to the shape of the medical dressing.

In some embodiments, the through hole 114 of the liquid-permeable blocking body 100 intersects, is tangential to or is separated from the first end face 111, as in the embodiment of fig. 1 and 3, the through hole 114 of the liquid-permeable blocking body 100 intersects with the first end face 111, an indwelling abdominal or thoracic drainage tube (or referred to as a drainage tube or a placement tube) passes through the position of the through hole 114, the diameter of the through hole 114 can be slightly smaller than the outer diameter of the drainage tube so as to realize the clamping function, the through hole 114 intersects with the first end face 111, the drainage tube can be pushed in and pressed out from the first end face 111, which is convenient for a medical staff to operate, and then the liquid-permeable blocking body 100 pushed in the drainage tube is fixed on the skin around the puncture point of the human body.

In some embodiments, the annular structure 110 of the liquid-permeable barrier body 100 is in the shape of a regular or irregular circle, oval or polygon, etc., alternatively, the annular structure 110 of the liquid-permeable barrier body 100 is in the shape of a regular circle.

In some embodiments, the liquid-permeable blocking body 100 is made of a silica gel material, which is low in cost, easy to process and form, and suitable for being used as a disposable medical consumable, and does not cause side effects when being contacted with a human body.

The seepage collecting device provided by the embodiment of the utility model has the following beneficial effects:

(1) The liquid seepage blocking main body is equivalent to a chassis fixed on the skin around the puncture point, has a certain thickness, can support the medical dressing, not only realize the sealing of the puncture point, but also avoid the direct contact between the puncture point and the medical dressing, so that the wound at the puncture point is breathable and the infection risk is reduced;

(2) The seepage blocking main body can collect seepage at the puncture point, so that the problem that drainage liquid leaks outwards from the puncture point after a clinical catheter is placed is solved;

(3) The liquid seepage blocking main body is provided with the through hole for the drainage tube to pass through, so that the drainage tube can be clamped, and the phenomenon that the replacement medical dressing is loosened and removed due to leakage is avoided;

(4) The seepage collecting device can ensure the dryness of the skin at the puncture position, the dryness of clothes and beds of patients, and the sanitation;

(5) The seepage collecting device has low operation difficulty, and common medical staff can finish the clinical maintenance of the indwelling abdominal cavity or the intrathoracic drain, thereby saving medical resources and reducing the labor intensity of the medical staff.

(6) The seepage collecting device solves the problem that drainage fluid leaks outwards from the puncture point after clinical catheterization, reduces repeated dressing replacement operation of medical staff, and greatly reduces psychological burden of patients.

(7) The seepage collecting device is provided with the sealed drainage bag which is used for collecting seepage in the seepage blocking main body and preventing seepage caused by excessive seepage aggregation in the seepage blocking main body, and the sealed drainage bag is arranged on the outer side of the seepage blocking main body and is convenient to replace.

In this disclosure, features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations can be made to the embodiments of the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A seepage collection device is characterized in that the device comprises a seepage blocking main body (100);

The seepage blocking main body (100) comprises a closed annular structure (110), the annular structure (110) is provided with a first end face (111) and is used for being mutually attached to the skin around a human body puncture point, an inner side wall face (112) of the annular structure (110) is used for blocking seepage of the human body puncture point, and the seepage blocking main body (100) is provided with a through hole (114) for a drainage tube to pass through;

The seepage blocking main body (100) is provided with a drainage structure and is used for communicating and connecting the seepage blocking main body (100) with the sealed drainage bag (300).

2. The liquid permeation and collection device according to claim 1, wherein the first end surface (111) of the liquid permeation and blocking body (100) has an adhesive layer for adhesive sealing with the skin around the human body puncture site.

3. The device according to claim 1, further comprising a film layer (200), wherein the film layer (200) is attached at least at a second end surface (113) of the liquid-permeable barrier body (100), and the second end surface (113) is an end surface opposite to the first end surface (111) of the annular structure (110).

4. A device according to claim 3, characterized in that the film layer (200) is larger than the first end face (111) for attachment to the annular structure (110) and its outer surrounding skin;

The annular structure (110) is provided with an outer side face (118), the outer side face (118) is a transition inclined face or a transition cambered face and is used for realizing smooth attachment of the film pasting layer (200), and the width of the annular structure (110) at the first end face (111) is larger than that at the second end face (113).

5. The device of claim 1, further comprising a sealed drainage bag (300), wherein the sealed drainage bag (300) is configured to be coupled to the liquid-permeable barrier body (100) to collect liquid-permeable within the liquid-permeable barrier body (100).

6. The seepage-control device according to claim 5, wherein the sealed drainage bag (300) is provided therein with a backflow prevention structure (310) for preventing the liquid in the sealed drainage bag (300) from reversely flowing into the seepage-blocking main body (100).

7. The seepage-collecting device of claim 1, wherein the drainage structure comprises:

At least one liquid collecting port (115) provided on an inner wall of the annular structure (110) of the liquid permeation blocking body (100);

A confluence channel (116) arranged inside the annular structure (110) of the seepage blocking main body (100);

A outflow port (117) provided on the outer side of the annular structure (110) of the liquid permeation blocking body (100);

Wherein, the outflow port (117) is communicated with the liquid collecting port (115) through the converging channel (116), and the outflow port (117) is used for communicating with the sealed drainage bag (300).

8. The device according to claim 7, wherein the liquid permeation barrier body (100) further comprises an extension (120) protruding from the annular structure (110), the extension (120) extending outwardly from the annular structure (110), the outflow opening (117) of the drainage structure being formed at an end of the extension (120) facing away from the annular structure (110);

Two or more liquid collecting ports (115) are arranged on the inner wall of the annular structure (110) of the liquid seepage blocking main body (100), each liquid collecting port (115) is communicated with the converging channel (116), and one outflow port (117) is arranged.

9. The permeate collection device according to claim 1, wherein the first end face (111) is planar and/or,

The through-hole (114) of the liquid-permeable barrier body (100) intersects, is tangential to or is separated from the first end face (111), and/or,

The annular structure (110) of the liquid-permeable barrier body (100) is regular or irregular circular, elliptical or polygonal.

10. A liquid permeation and collection device according to claim 3, wherein said film layer (200) is a transparent film and/or,

The seepage blocking main body (100) is made of silica gel.