CN219090739U - External fixing device for drainage tube - Google Patents

Abstract

The utility model discloses an external fixing device for a drainage tube, which belongs to the technical field of medical equipment and aims to realize noninvasive fixation of the drainage tube and skin, and the external fixing device for the drainage tube comprises a knob lock (1), a base (2) and a non-setting rubber pad (3) which are sequentially connected from top to bottom, wherein an elastic rubber cylinder (4) is fixedly sleeved in the base (2), and when the knob lock (1) moves downwards relative to the base (2), the knob lock (1) can extrude the elastic rubber cylinder (4), and the inner diameter of the elastic rubber cylinder (4) can be reduced after being extruded. When the external fixing device for the drainage tube is used, the drainage tube penetrates through the drainage tube placing channel of the external fixing device for the drainage tube, after the drainage tube is placed successfully, the self-adhesive pad is stuck and fixed with the surface of the skin, and then the knob lock is screwed down to fix the drainage tube, so that the external fixing device for the drainage tube is simple in structure and convenient to operate, the external fixing device for the drainage tube completely replaces the suture skin to fix the drainage tube, and postoperative pain of a patient is reduced.

Description

External fixing device for drainage tube

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an external fixing device for a drainage tube.

Background

At present, when the head drainage tube is placed in the neurosurgery operation, no suitable noninvasive drainage tube fixing device exists. At present, when a head drainage tube is placed in neurosurgery, skin is punctured through a sharp knife, a skin needle is used for suturing a needle on the scalp around the drainage tube for fixing after the drainage tube is placed, in addition, a fixing suture line is required to be removed in the process of pulling out the drainage tube, and meanwhile, a needle is required to be sutured at a wound of the drainage tube for closing a wound to prevent the occurrence of cerebrospinal fluid leakage. This procedure increases the pain and risk of infection for the patient, most patients experience pain from suturing the drain tube wound after removal of the drain tube, and also increases the risk of postoperative wound and intracranial infection.

Disclosure of Invention

In order to realize noninvasive fixation of a drainage tube and skin, the utility model provides an external drainage tube fixing device, when the external drainage tube fixing device is used, a drainage tube is firstly penetrated through a drainage tube placing channel of the external drainage tube fixing device, after the drainage tube is successfully placed, an adhesive pad is firstly adhered and fixed with the surface of the skin, and then a knob lock is screwed to fix the drainage tube, the external drainage tube fixing device has the advantages of simple structure, convenient operation, transparent structure and small volume (the height is only 1.5 cm), the external drainage tube fixing device completely replaces a skin-sewing fixing drainage tube, the postoperative pain of a patient is reduced, and the external drainage tube fixing device is convenient for conversion production and popularization.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a drainage tube external use fixing device, includes knob lock, base and the non-setting adhesive pad that from the top down connects gradually, and base internal fixation cover is equipped with the elastic rubber cylinder, be equipped with the drainage tube in the drainage tube external use fixing device and place the passageway, the drainage tube is placed the passageway from the top down and is run through knob lock, base, non-setting adhesive pad and elastic rubber cylinder, and the knob lock can reciprocate for the base, and when the knob lock to the in-process of base downwardly moving, the knob lock can extrude the elastic rubber cylinder, and the elastic rubber cylinder can be reduced by the internal diameter after being extruded, and the knob lock can also make the elastic rubber cylinder keep by extruded state.

The knob lock is of a cylindrical structure, the knob lock comprises an inner lock cylinder and an outer lock cylinder which are sleeved outside, the upper end of the inner lock cylinder and the upper end of the outer lock cylinder are fixedly connected through an upper connecting ring, and an annular cavity is formed between the inner lock cylinder and the outer lock cylinder.

The base is also of a cylindrical structure, the base is sleeved between the inner lock cylinder and the outer lock cylinder, the upper part of the base is positioned in the annular cavity, and the base is in threaded connection with the inner lock cylinder or the outer lock cylinder.

An inner chamfer is arranged in the upper end of the inner lock cylinder, a plurality of outer convex ribs are arranged outside the upper part of the outer lock cylinder, and the plurality of outer convex ribs are arranged at intervals along the circumferential direction of the outer lock cylinder.

An anti-falling inner convex ring is arranged in the lower end of the outer lock cylinder, an anti-falling outer convex ring is arranged outside the base, the inner diameter of the anti-falling inner convex ring is smaller than that of the anti-falling outer convex ring, and the anti-falling inner convex ring is located below the anti-falling outer convex ring.

The elastic rubber cylinder comprises an inner rubber cylinder and an outer rubber cylinder which are sleeved outside the inner rubber cylinder, and the upper end face of the inner rubber cylinder is lower than the upper end face of the outer rubber cylinder.

The inner diameter of the inner lock cylinder is larger than or equal to the inner diameter of the inner rubber cylinder, and the outer diameter of the inner lock cylinder is smaller than or equal to the outer diameter of the inner rubber cylinder.

The lower end face of the inner rubber cylinder is higher than the lower end face of the outer rubber cylinder, the lower end face of the inner rubber cylinder is flush with the lower end face of the base, and the lower end face of the inner rubber cylinder and the lower end face of the base are fixedly connected with the upper surface of the self-adhesive pad.

The knob lock and the base are made of transparent polycarbonate, the elastic rubber cylinder is made of silicon rubber, and the inner diameter of the knob lock is smaller than that of the elastic rubber cylinder.

The self-adhesive pad is of an annular structure, the outer diameter of the self-adhesive pad is larger than that of the base, the self-adhesive pad comprises a base layer, a self-adhesive layer and a protective layer which are sequentially connected in a laminated mode from top to bottom, and the base layer is non-woven fabric or soft gauze.

The beneficial effects of the utility model are as follows: when the external fixing device for the drainage tube is used, the drainage tube penetrates through the drainage tube placing channel of the external fixing device for the drainage tube, after the drainage tube is placed successfully, the non-setting rubber pad is stuck and fixed with the surface of the skin, and then the drainage tube is locked by tightening the knob lock, so that the external fixing device for the drainage tube is simple in structure, convenient to operate, transparent in structure and small in size (the height is only 1.5 cm), the external fixing device for the drainage tube completely replaces the suture skin to fix the drainage tube, postoperative pain of a patient is reduced, and conversion production and popularization are facilitated.

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 embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic view of the external fixing device for the drainage tube.

Fig. 2 is a schematic cross-sectional view of a knob lock.

Fig. 3 is a schematic cross-sectional view of a base.

Fig. 4 is a schematic cross-sectional view of an elastomeric gum barrel.

Fig. 5 is a schematic cross-sectional view of a non-dry adhesive pad.

FIG. 6 is a schematic view showing an operation state of the external fixing device for a drainage tube according to the present utility model.

The reference numerals are explained as follows:

1. a knob lock; 2. a base; 3. a non-drying rubber pad; 4. an elastic rubber cylinder; 5. a drainage tube placement channel; 6. a drainage tube; 7. skin;

11. an inner lock cylinder; 12. an outer lock cylinder; 13. an upper connecting ring; 14. an annular cavity;

21. an anti-falling outer convex ring; 22. an external thread section;

31. a base layer; 32. a non-setting adhesive layer; 33. a protective layer;

41. an inner rubber cylinder; 42. an outer rubber cylinder;

111. an inner chamfer;

121. an outer rib; 122. an anti-falling inner convex ring.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The utility model provides a drainage tube external use fixing device, includes knob lock 1, base 2 and non-setting adhesive pad 3 that from the top down connects gradually, and base 2 internal fixation cover is equipped with elastic rubber cylinder 4, be equipped with drainage tube in the drainage tube external use fixing device and place passageway 5, drainage tube place passageway 5 from the top down run through knob lock 1, base 2, non-setting adhesive pad 3 and elastic rubber cylinder 4, and knob lock 1 can reciprocate for base 2, and in-process that knob lock 1 moved down for base 2, knob lock 1 can extrude elastic rubber cylinder 4, and elastic rubber cylinder 4 is by the extrusion back, and elastic rubber cylinder 4's internal diameter can diminish, and elastic rubber cylinder 4's axial length also can diminish, and knob lock 1 can also make elastic rubber cylinder 4 keep by extruded state, as shown in fig. 1 to 5.

In this embodiment, the axis of the knob lock 1, the axis of the base 2, the axis of the non-setting rubber pad 3, the axis of the elastic rubber tube 4 and the axis of the drainage tube placement channel 5 are coincident, a section of the drainage tube placement channel 5 is located in the knob lock 1, a section of the drainage tube placement channel 5 is located in the base 2, a section of the drainage tube placement channel 5 is located in the non-setting rubber pad 3, a section of the drainage tube placement channel 5 is located in the elastic rubber tube 4, the knob lock 1 can move up and down relative to the base 2, and after the knob lock 1 moves up and down relative to the base 2, the position of the knob lock 1 relative to the base 2 can be locked, so that the elastic rubber tube 4 is kept in an extruded state.

In this embodiment, the knob lock 1 has a cylindrical structure, the height of the knob lock 1 may be 15mm, the outer diameter of the knob lock 1 may be 14mm, the inner diameter of the knob lock 1 may be 5mm-7mm, the knob lock 1 includes an inner lock cylinder 11 and an outer lock cylinder 12 which are sleeved outside and inside, the axis of the inner lock cylinder 11, the axis of the outer lock cylinder 12 and the axis of the knob lock 1 are coincident, the upper end of the inner lock cylinder 11 and the upper end of the outer lock cylinder 12 are connected and fixed together through an upper connecting ring 13, an annular cavity 14 is formed between the inner lock cylinder 11 and the outer lock cylinder 12, the upper end of the annular cavity 14 is in a closed state, and the upper end of the annular cavity 14 is in an open state, as shown in fig. 1 and 2.

In this embodiment, the base 2 is also in a cylindrical structure, the base 2 is sleeved between the inner lock cylinder 11 and the outer lock cylinder 12, the upper part of the base 2 is positioned in the annular cavity 14, and the base 2 is in threaded connection with the inner lock cylinder 11 or the outer lock cylinder 12. The base 2 is preferably screwed with the outer lock cylinder 12, i.e. the upper part of the base 2 is provided with an external thread segment 22, and the outer lock cylinder 12 is internally provided with an internal thread segment, and the external thread segment 22 is in threaded engagement with the internal thread segment, so as to realize up-and-down movement and position locking, as shown in fig. 1 and 3.

In the present embodiment, an inner chamfer 111 is provided in the upper end of the inner lock cylinder 11, and a plurality of outer ribs 121 are provided outside the upper portion of the outer lock cylinder 12, the plurality of outer ribs 121 being arranged at intervals in the circumferential direction of the outer lock cylinder 12. The inner chamfer 111 is arranged to facilitate the drainage tube 6 to be inserted into the drainage tube placing channel 5, the plurality of outer ribs 121 are arranged to facilitate manual screwing of the knob lock 1, and the knob lock 1 can be screwed, so that after the knob lock 1 moves up and down relative to the base 2, the position of the knob lock 1 relative to the base 2 is locked.

In this embodiment, be equipped with the anti-disengaging inner convex ring 122 in the lower extreme of outer lock cylinder 12, the outer convex ring 21 of anti-disengaging of base 2 is equipped with, and the internal diameter of convex ring 122 is slightly less than the internal diameter of convex ring 21 in the anti-disengaging, and convex ring 122 is located the below of convex ring 21 in the anti-disengaging, and convex ring 21 is located outside the anti-disengaging, convex ring 122 and convex ring 21 all have elastic deformation's ability outside the anti-disengaging, and when producing the installation, after receiving great external force, convex ring 122 entering annular cavity 14 in the anti-disengaging is gone into to convex ring 21 in the anti-disengaging, convex ring 122 and the cooperation of convex ring 21 outside the anti-disengaging in the anti-disengaging can prevent that knob lock 1 from breaking away from base 2.

In this embodiment, the elastic rubber tube 4 is fixedly connected with the base 2, preferably, the outer surfaces of the middle and lower parts of the elastic rubber tube 4 are fixedly connected (e.g. adhered) with the inner surface of the base 2. The elastic rubber cylinder 4 comprises an inner rubber cylinder 41 and an outer rubber cylinder 42 which are sleeved outside and inside, the axis of the inner rubber cylinder 41, the axis of the outer rubber cylinder 42 and the axis of the elastic rubber cylinder 4 are overlapped, the upper end face of the inner rubber cylinder 41 is lower than the upper end face of the outer rubber cylinder 42, and the thickness of the inner rubber cylinder 41 is slightly smaller than the thickness of the outer rubber cylinder 42, as shown in fig. 4.

In this embodiment, the outer surface of the inner rubber cylinder 41 and the outer surface of the outer rubber cylinder 42 are connected (e.g. bonded) and fixed together, the inner diameter of the inner lock cylinder 11 is greater than or equal to the inner diameter of the inner rubber cylinder 41, and the outer diameter of the inner lock cylinder 11 is smaller than or equal to the outer diameter of the inner rubber cylinder 41. When the knob lock 1 moves downwards relative to the base 2, the lower end surface of the inner lock cylinder 11 of the knob lock 1 is only abutted against the upper end surface of the inner rubber cylinder 41, and presses the elastic rubber cylinder 4.

In this embodiment, the lower end surface of the inner rubber 41 is higher than the lower end surface of the outer rubber 42, the lower end surface of the inner rubber 41 is flush with the lower end surface of the base 2, and the lower end surfaces of the inner rubber 41 and the base 2 are both connected (e.g. bonded) and fixed with the upper surface of the non-drying rubber pad 3.

In this embodiment, the knob lock 1 and the base 2 may be made of plastic, such as transparent polycarbonate. The elastic rubber cylinder 4 may be made of rubber, such as silicone rubber, and the inner diameter of the knob lock 1 may be slightly larger or smaller than the inner diameter of the elastic rubber cylinder 4. Preferably, the inner diameter of the knob lock 1 can be slightly smaller than the inner diameter of the elastic rubber cylinder 4, so that the drainage tube 6 is prevented from contacting the elastic rubber cylinder 4 when passing through the drainage tube placing channel 5, and the drainage tube can pass through smoothly.

In this embodiment, the self-adhesive pad 3 is in an annular structure, the outer diameter of the self-adhesive pad 3 can be 5cm-6.5cm, the inner diameter of the self-adhesive pad 3 can be 5mm-7mm, the self-adhesive pad 3 acts on the connecting skin 7 and the base 2, the outer diameter of the self-adhesive pad 3 is larger than the outer diameter of the base 2, the inner diameter of the self-adhesive pad 3 is smaller than the inner diameter of the outer adhesive cylinder 42, and the self-adhesive pad 3 comprises a base layer 31, a self-adhesive layer 32 and a protective layer 33 which are sequentially laminated from top to bottom, as shown in fig. 5. The base layer 31 is a non-woven fabric or soft gauze to facilitate ventilation. The protective layer 33 may be plastic film paper.

The working process of the external fixing device for the drainage tube is described below.

One end of the drainage tube 6 enters the skin 7, the non-dry rubber pad 3 faces the skin 7, the drainage tube 6 penetrates through the drainage tube placing channel 5 of the external drainage tube fixing device, the external drainage tube fixing device is sleeved on the drainage tube 6, and the inner diameter of the elastic rubber cylinder 4 is 1mm-2mm larger than the outer diameter of the drainage tube 6. Tearing the protective layer 33 of the self-adhesive pad 3, adhering and fixing the base layer 31 with the skin 7 through the self-adhesive layer 32, screwing the knob lock 1, enabling the knob lock 1 to move downwards relative to the base 2, extruding the elastic rubber cylinder 4 by the knob lock 1, enabling the inner diameter of the elastic rubber cylinder 4 to be reduced after the elastic rubber cylinder 4 is extruded, enabling the axial length of the elastic rubber cylinder 4 to be reduced, enabling the elastic rubber cylinder 4 to be in an extruded state, enabling the inner surface of (the inner rubber cylinder 41 of) the elastic rubber cylinder 4 to be connected with the outer surface of the drainage tube 6, enabling the elastic rubber cylinder 4 to keep the extruded state, enabling the size of the elastic rubber cylinder 4 to be capable of being achieved, enabling the elastic rubber cylinder 4 to encircle and fix the drainage tube 6 when the elastic rubber cylinder 4 is in the extruded state, and enabling the drainage tube 6 to be fixed relative to the skin 7, as shown in fig. 1-6.

For ease of understanding and description, the present utility model is described using absolute positional relationships, where the azimuth term "upper" indicates the upper direction in fig. 1 and the azimuth term "lower" indicates the lower direction in fig. 1 unless otherwise specified. The present utility model is described using the viewing angle of the reader or user, but the above directional terms are not to be interpreted or construed as limiting the scope of the present utility model.

The foregoing description of the embodiments of the utility model is not intended to limit the scope of the utility model, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the utility model shall fall within the scope of the patent. In addition, the technical features and technical features, technical features and technical scheme, technical scheme and technical scheme, and embodiments of the utility model can be freely combined for use.

Claims (10)

1. The utility model provides a drainage tube external fixation device, its characterized in that, drainage tube external fixation device includes knob lock (1), base (2) and non-setting rubber pad (3) that from the top down connects gradually, and base (2) internal fixation cover is equipped with elastic rubber tube (4), be equipped with drainage tube in the drainage tube external fixation device and place passageway (5), drainage tube place passageway (5) from the top down run through knob lock (1), base (2), non-setting rubber pad (3) and elastic rubber tube (4), and knob lock (1) can reciprocate for base (2), and in-process that knob lock (1) moved down for base (2) can extrude elastic rubber tube (4), and elastic rubber tube (4) can diminish by the internal diameter after the extrusion, and knob lock (1) can also make elastic rubber tube (4) keep by extruded state.

2. The external drainage tube fixing device according to claim 1, wherein the knob lock (1) is of a cylindrical structure, the knob lock (1) comprises an inner lock cylinder (11) and an outer lock cylinder (12) which are sleeved outside, the upper end of the inner lock cylinder (11) and the upper end of the outer lock cylinder (12) are fixedly connected through an upper connecting ring (13), and an annular cavity (14) is formed between the inner lock cylinder (11) and the outer lock cylinder (12).

3. The external drainage tube fixing device according to claim 2, wherein the base (2) is also in a cylindrical structure, the base (2) is sleeved between the inner lock cylinder (11) and the outer lock cylinder (12), the upper part of the base (2) is positioned in the annular cavity (14), and the base (2) is in threaded connection with the inner lock cylinder (11) or the outer lock cylinder (12).

4. The external drainage tube fixing device according to claim 2, wherein an inner chamfer (111) is provided in an upper end of the inner lock cylinder (11), a plurality of outer ribs (121) are provided outside an upper portion of the outer lock cylinder (12), and the plurality of outer ribs (121) are arranged at intervals along a circumferential direction of the outer lock cylinder (12).

5. The drainage tube external fixation device according to claim 2, wherein an anti-falling inner convex ring (122) is arranged in the lower end of the outer lock cylinder (12), an anti-falling outer convex ring (21) is arranged outside the base (2), the inner diameter of the anti-falling inner convex ring (122) is smaller than the inner diameter of the anti-falling outer convex ring (21), and the anti-falling inner convex ring (122) is positioned below the anti-falling outer convex ring (21).

6. The external drainage tube fixing device according to claim 2, wherein the elastic rubber tube (4) comprises an inner rubber tube (41) and an outer rubber tube (42) which are sleeved outside and inside, and the upper end surface of the inner rubber tube (41) is lower than the upper end surface of the outer rubber tube (42).

7. The external drainage tube fixing device according to claim 6, wherein an inner diameter of the inner lock cylinder (11) is larger than or equal to an inner diameter of the inner rubber cylinder (41), and an outer diameter of the inner lock cylinder (11) is smaller than or equal to an outer diameter of the inner rubber cylinder (41).

8. The drainage tube external fixation device according to claim 6, wherein the lower end face of the inner rubber tube (41) is higher than the lower end face of the outer rubber tube (42), the lower end face of the inner rubber tube (41) is flush with the lower end face of the base (2), and the lower end face of the inner rubber tube (41) and the lower end face of the base (2) are fixedly connected with the upper surface of the self-adhesive pad (3).

9. The external drainage tube fixing device according to claim 1, wherein the knob lock (1) and the base (2) are made of transparent polycarbonate, the elastic rubber cylinder (4) is made of silicone rubber, and the inner diameter of the knob lock (1) is smaller than the inner diameter of the elastic rubber cylinder (4).

10. The drainage tube external fixation device according to claim 1, wherein the non-dry rubber pad (3) is of an annular structure, the outer diameter of the non-dry rubber pad (3) is larger than the outer diameter of the base (2), the non-dry rubber pad (3) comprises a base layer (31), a non-dry rubber layer (32) and a protective layer (33) which are sequentially connected in a laminated manner from top to bottom, and the base layer (31) is non-woven fabric or soft gauze.

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