Pressure damage prevention type non-return device

Abstract

The utility model provides a pressure damage prevention type non-return device which comprises a shell, the outer surface of the shell is a curved surface, the shell comprises a first shell body and a second shell body which are detachably connected, and a channel for a pipeline to penetrate through is arranged at the combination position of the first shell body and the second shell body; and the pressing operation mechanism is mounted on the shell, extends to the shell side from the channel and is used for pressing or releasing the pipeline according to the pressing operation of a person. The pressure injury prevention type non-return device is in the shape of a curved surface, has no sharp part, cannot cause discomfort of a patient after being attached to the skin of the human body, and cannot cause injury or pressure sores to the skin of the patient under the action of pressure; the non-return device can be installed on the pipeline at any time or detached from the pipeline at any time, the pipeline does not need to be pulled out and then the water stop clamp is replaced, and the non-return device is very convenient; the non-return structure can extrude the pipeline, and the blood return phenomenon is prevented when infusion is interrupted.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a pressure-damage-proof check device. Background Art

[0002] Medical lines generally include venous lines, arterial lines, drainage tubes and PICC lines, among which PICC lines (Peripherally Inserted Central Catheter, a disposable peripherally inserted central catheter, is inserted into the superior vena cava through peripheral vein puncture, mainly providing patients with medium- and long-term intravenous infusion therapy, especially playing an important role in tumor chemotherapy, parenteral nutrition, etc. PICC catheterization can reduce the pain of patients, and the retention and use time is long, reducing the risk of infection. In order to avoid blood return when the infusion is interrupted, a water stop clamp is installed on the PICC catheter to compress the PICC pipeline to stop the flow of liquid in the tube. Similarly, the water stop clamp can also be used in other pipelines such as venous pipelines, arterial pipelines, and drainage tubes. The currently used water stop clamps are prone to pressure injuries due to structural problems when the sharp part is close to the skin, causing pain to the patient, and the compression site is prone to infection or pressure sores; during use, the water stop clamp may be damaged, and the water stop clamp is limited on the pipeline, and its through hole cannot be removed and replaced through the catheter head. Therefore, the pipeline needs to be pulled out and replaced with a new one, which will also cause pain to the patient and increase the economic burden. Utility Model Content

[0003] In view of this, an embodiment of the present utility model provides a pressure-damage-proof check device, the check device comprising:

[0004] A shell, the outer surface of which is a curved surface, the shell comprising a first shell and a second shell that are detachably connected, and a channel for a pipeline to pass through is provided at a joint of the first shell and the second shell;

[0005] A pressing operation mechanism is installed on the shell, and the pressing operation mechanism extends from the channel to the shell side, and is used to press or release the pipeline according to the pressing operation of personnel.

[0006] In some embodiments of the present utility model, a first placement cavity is opened in the middle of the second shell, and the pressing operation mechanism is arranged in the first placement cavity, and the pressing operation mechanism is opposite to the channel;

[0007] The pressing operation mechanism includes a rod body, a limiting column fixedly connected to the rod body, and a slideway opened on the inner surface of the first placement cavity, the axis of the limiting column intersects with the axis of the rod body, and one end of the limiting column away from the rod body is arranged in the slideway, and the slideway is used for the limiting column to press or release the pipeline when the rod body slides along the slideway.

[0008] In some embodiments of the present invention, a clamping structure is provided on a side of the channel away from the second shell, and the clamping structure includes a top column, the top column is slidably connected to the channel, and a first spring is provided at the bottom of the top column.

[0009] In some embodiments of the present invention, the shell is any one of an ellipsoidal, spherical and wavy shape.

[0010] In some embodiments of the utility model, the slide includes a first sub-slide and a second sub-slide alternately connected, the highest point of the first sub-slide is lower than the highest point of the second sub-slide, the first sub-slide is an inverted V-shaped structure or an inverted U-shaped structure, and the second sub-slide is an inverted V-shaped structure or an inverted U-shaped structure.

[0011] In some embodiments of the utility model, the bottom of the rod body is a reduced diameter section, and a step structure is formed at the reduced diameter portion of the bottom of the rod body. The bottom of the first placement cavity is fixedly connected to a limiting ring, and a second spring is arranged between the limiting ring and the step structure. The second spring is arranged coaxially with the rod body.

[0012] In some embodiments of the present invention, the pressing operation mechanism further includes a pressing handle, the pressing handle is fixedly connected to the top of the rod body, and the pressing handle is ellipsoidal or spherical.

[0013] In some embodiments of the present utility model, the first housing and the second housing are detachably connected via a clamping structure, and the clamping structure includes a first clamping column and at least one second clamping column;

[0014] A second placement cavity is formed at the bottom of the second housing, the second clamping post is fixedly connected to the top of the second placement cavity, and a protrusion is fixedly connected to one side of the second clamping post close to the first clamping post;

[0015] The first clamping column is fixedly connected to the top of the first shell, and a groove is formed on one side of the first clamping column close to the second clamping column, and the groove and the protrusion can be clamped with each other.

[0016] In some embodiments of the present invention, an adhesive layer is provided at the bottom of the first shell; and / or,

[0017] A fixing sticker is arranged in the channel.

[0018] In some embodiments of the present invention, the first shell and the second shell are hingedly connected via a rotating shaft at a side away from the clamping structure.

[0019] The utility model provides an anti-pressure damage type non-return device with a curved appearance, which is different from the appearance of an ordinary steel wire water-stop clamp and has no sharp parts. It will not cause discomfort to the patient after being in contact with the human skin, and will not cause damage to the patient's skin or produce pressure sores under the action of pressure. The non-return device can be installed on the pipeline or removed on the pipeline at any time, and there is no need to draw out the pipeline and then replace the water-stop clamp, which is very convenient. The pressing operation mechanism can squeeze the pipeline to prevent blood return when the infusion is interrupted.

[0020] Additional advantages, purposes, and features of the present invention will be partially described in the following description, and will become partially apparent to those skilled in the art after studying the following, or may be learned from the practice of the present invention. The purposes and other advantages of the present invention can be achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0021] Those skilled in the art will understand that the purposes and advantages that can be achieved by the present invention are not limited to the above specific description, and the above and other purposes that can be achieved by the present invention will be more clearly understood based on the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute a limitation of the present invention. The components in the drawings are not drawn to scale, but are only for the purpose of illustrating the principles of the present invention. In order to facilitate the illustration and description of some parts of the present invention, the corresponding parts in the drawings may be enlarged, that is, they may become larger relative to other components in the exemplary device actually manufactured according to the present invention. In the drawings:

[0023] Figure 1 Schematic diagram of the internal structure of a pressure damage-proof check device in one embodiment of the utility model.

[0024] Figure 2 For this utility model Figure 1 A partial enlarged view of point A in the middle.

[0025] Figure 3 It is a schematic diagram of the unfolded slideway structure in one embodiment of the utility model.

[0026] Figure 4 The figure is a schematic diagram of the appearance structure of the pressure damage prevention type non-return device in one embodiment of the utility model.

[0027] Figure numerals: 1. first shell; 11. first spring; 12. top column; 13. channel; 2. second shell; 21. first placement cavity; 22. slideway; 23. second spring; 24. limiting ring; 3. rotating shaft; 4. pressing operating mechanism; 41. rod body; 42. pressing handle; 43. limiting column; 5. snap-fit ​​structure; 51. second placement cavity; 52. first snap-fit ​​column; 53. protrusion; 54. second snap-fit ​​column; 6. adhesive layer. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the implementation mode and the accompanying drawings. Here, the schematic implementation mode of the utility model and its description are used to explain the utility model, but are not used as a limitation of the utility model.

[0029] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0030] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0031] It should also be noted that, unless otherwise specified, the term “connection” herein may refer not only to a direct connection but also to an indirect connection involving an intermediate.

[0032] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0033] In order to solve or alleviate the problem that the existing wire water-stop clamps in the prior art are prone to cause pressure damage to human skin, the utility model proposes an anti-pressure damage type non-return device. The non-return device has a curved shape without sharp parts, which improves the comfort of contact with human skin and prevents the occurrence of pressure sores.

[0034] An embodiment of the utility model provides a pressure damage-proof non-return device, which includes: a shell, the outer surface of the shell is a curved surface, the shell includes a first shell 1 and a second shell 2 that are detachably connected, and the joint portion of the first shell 1 and the second shell 2 is provided with a channel 13 for the pipeline to pass through; a pressing operating mechanism 4 installed on the shell, the pressing operating mechanism 4 extends from the channel 13 to the shell side, and is used to tighten or release the pipeline according to the pressing operation of the personnel.

[0035] Reference Figure 1The internal structure diagram of the pressure damage prevention type non-return device in one embodiment of the utility model and Figure 4 The schematic diagram of the appearance structure of the pressure damage prevention type non-return device in one embodiment of the utility model, the non-return device of this embodiment is different from the traditional steel wire water-stop clamp structure, the appearance of the non-return device is a curved surface, which is different from the appearance of the ordinary steel wire water-stop clamp, and has no sharp parts. It will not cause discomfort to the patient after being in contact with the human skin, and will not cause damage to the patient's skin or produce pressure sores under the action of pressure; the non-return device of this embodiment includes a first shell 1 and a second shell 2, which can be installed on the pipeline at any time or removed from the pipeline at any time, and there is no need to pull out the pipeline and then replace the water-stop clamp, which is very convenient; the pressing operation mechanism can squeeze the pipeline to prevent blood return when the infusion is interrupted.

[0036] The push-operation mechanism 4 may extend to the inside, surface or outside of the shell. In one specific embodiment, the push-operation mechanism 4 extends to the inside of the shell, and the operator inserts his finger into the shell to press the push-operation mechanism 4, which can prevent non-operators from accidentally touching it. In another specific embodiment, the push-operation mechanism 4 extends to the surface of the shell, which has an aesthetic appearance and prevents accidental touching. In another specific embodiment, the push-operation mechanism 4 extends to the outside of the shell, which is convenient for the operator to hold and press.

[0037] In some embodiments, a first placement cavity 21 is opened in the middle of the second shell 2, and the pressing operation mechanism 4 is arranged in the first placement cavity 21, and the pressing operation mechanism 4 is opposite to the channel 13; the pressing operation mechanism 4 includes a rod body 41, a limiting column 43 fixedly connected to the rod body 41 and a slide 22 opened on the inner surface of the first placement cavity 21, the axis of the limiting column 43 intersects with the axis of the rod body 41, and the end of the limiting column 43 away from the rod body 41 is arranged in the slide 22, and the slide is used to make the rod body 41 press or release the pipeline during the sliding process of the limiting column 43 along the slide.

[0038] The rod body 41 in the above embodiment can move up and down. When in use, the pipeline is placed in the channel 13. When the operator presses the rod body 41, the limit column 43 slides in the slide 22, so that the rod body 41 rotates itself and moves downward, thereby tightening the pipeline, thereby preventing the patient's blood from flowing back. The rod body 41 is pressed again, and the rod body 41 continues to move along the slide 22. The rod body 41 moves upward relative to the second shell 2, loosening the pipeline and restoring the infusion function of the pipeline.

[0039] In some embodiments, a compression structure is provided on one side of the channel 13 away from the second housing 2, and the compression structure includes a top column 12, which is slidably connected to the channel 13, and a first spring 11 is provided at the bottom of the top column 12. When the pipeline is placed in the channel 13, under the action of the elastic force of the first spring 11, the top column 12 provides an upward elastic force for the pipeline.

[0040] In some embodiments, the shell is any one of an ellipsoidal, spherical and wavy shape, and the curved surface can increase the contact area between the shell and human skin to prevent pressure damage to the skin.

[0041] Reference Figure 3 A schematic diagram of the unfolded slide structure in one embodiment of the utility model. In some embodiments, the slide includes a first sub-slide and a second sub-slide alternately connected, the highest point of the first sub-slide is lower than the highest point of the second sub-slide, the first sub-slide is an inverted V-shaped structure or an inverted U-shaped structure, and the second sub-slide is an inverted V-shaped structure or an inverted U-shaped structure.

[0042] It can be understood that when the limit post 43 is located at the highest point of the first sub-slide, the rod body 41 presses the pipeline, and when the limit post 43 is located at the highest point of the second sub-slide, the rod body 41 releases the pipeline. When switching between pressing and releasing the pipeline, the rod body 41 moves toward the side close to the pipeline. When the rod body 41 moves to the lower limit position, the rod body 41 will force the top column 12 to move downward, thereby realizing the function of the top column 12 giving way to the rod body 41 and preventing the top column 12 and the rod body 41 from interfering with each other. At the same time, under the action of the elastic force of the first spring 11, the top column 12 provides an upward elastic force for the pipeline, so that when the limit post 43 is located at the highest point of the first sub-slide, the rod body 41 and the top column 12 jointly squeeze the pipeline to press the pipeline.

[0043] In some embodiments, the bottom of the rod body 41 is a reduced diameter section, and a step structure is formed at the reduced diameter portion of the bottom of the rod body 41. The bottom of the first placement cavity 21 is fixedly connected to a limiting ring 24, and a second spring 23 is arranged between the limiting ring 24 and the step structure. The second spring 23 is coaxially arranged with the rod body 41 for rebound of the rod body 41.

[0044] Specifically, the step structure can adopt a right-angle structure to facilitate the limiting of the end of the second spring 23. When the rod body 41 is located at the bottom of the slide 22, under the action of the elastic force of the second spring 23, the rod body 41 is pushed upward to the extreme position at the top of the first sub-slide or the second sub-slide, thereby increasing the convenience and flexibility of the overall non-return device.

[0045] In some embodiments, the pressing operation mechanism 4 further includes a pressing handle 42, which is fixedly connected to the top of the rod body 41. The pressing handle 42 is ellipsoidal or spherical and is used for the operator to hold. The pressing handle 42 is easy for the operator to hold, and has the effect of facilitating the rotation of the rod body 41, while preventing the pressure sores on the skin caused by contact with human skin. After pressing, the pressing handle 42 can be aligned with the outer contour of the shell, so that the outer surface of the integral non-return device has no protruding part, thereby preventing the pressing handle 42 from causing damage to the skin under the action of pressure after contacting the human skin.

[0046] In some embodiments, the first shell 1 and the second shell 2 are detachably connected via a snap-fit ​​structure 5, and the snap-fit ​​structure 5 includes a first snap-fit ​​column 52 and at least one second snap-fit ​​column 54; a second placement cavity 51 is provided at the bottom of the second shell 2, and the second snap-fit ​​column 54 is fixedly connected to the top of the second placement cavity 51, and a protrusion 53 is fixedly connected to one side of the second snap-fit ​​column 54 close to the first snap-fit ​​column 52; the first snap-fit ​​column 52 is fixedly connected to the top of the first shell 1, and a groove is provided on one side of the first snap-fit ​​column 52 close to the second snap-fit ​​column 54, and the groove and the protrusion 53 can be snap-fitted to each other.

[0047] Reference Figure 2 The utility model Figure 1 Partially enlarged view of A in the middle, in the above embodiment, two second clamping posts 54 can be provided, located on both sides of the first clamping post 52, respectively. When the first shell 1 and the second shell 2 are closed, the second clamping post 54 and the first clamping post 52 approach each other until the groove and the protrusion 53 are engaged with each other. At this time, the first shell 1 and the second shell 2 are just closed. The second clamping post 54 and the first clamping post 52 can be made of plastic material with a certain elasticity to facilitate rebound. The clamping structure 5 of this embodiment can be used to install the non-return device on the pipeline without pulling out the pipeline, which is very convenient. At the same time, after the original traditional wire water stop clamp is damaged, the non-return device of this embodiment can also be quickly replaced.

[0048] In some embodiments, the bottom of the first housing 1 is provided with an adhesive layer 6 for adhering to human skin. The adhesive layer 6 can be made of double-sided adhesive tape, which is conducive to fixing the non-return device on human skin to prevent the non-return device from moving.

[0049] In some embodiments, a fixing sticker is provided in the channel 13. The fixing sticker is sticky and is used to stick and fix the pipeline to the channel 13 to prevent the pipeline from falling out.

[0050] In some embodiments, the first shell 1 and the second shell 2 are hingedly connected via a rotating shaft 3 at a side away from the clamping structure 5 , or can be connected via a hinge, so long as the first shell 1 and the second shell 2 can rotate relative to each other.

[0051] It should be clear that the present invention is not limited to the specific configurations and processes described above and shown in the figures. For the sake of simplicity, a detailed description of the known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0052] In the present invention, features described and / or illustrated for one embodiment may be used in the same manner or in a similar manner in one or more other embodiments, and / or combined with features of other embodiments or replace features of other embodiments.

[0053] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the embodiments of the utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pressure damage prevention type non-return device, characterized in that: The non-return device comprises: A shell, the outer surface of which is a curved surface, the shell comprising a first shell (1) and a second shell (2) which are detachably connected, and a channel (13) for a pipeline to pass through is provided at a joint between the first shell (1) and the second shell (2); A pressing operating mechanism (4) mounted on the housing, the pressing operating mechanism (4) extending from the channel (13) to the side of the housing, and used to press or release the pipeline according to a pressing operation by a person; A first placement cavity (21) is provided in the middle of the second shell (2), the pressing operation mechanism (4) is arranged in the first placement cavity (21), and the pressing operation mechanism (4) is located opposite to the channel (13); The pressing operation mechanism (4) comprises a rod body (41), a limiting column (43) fixedly connected to the rod body (41), and a slideway (22) provided on the inner surface of the first placement cavity (21), the axis of the limiting column (43) intersecting with the axis of the rod body (41), one end of the limiting column (43) away from the rod body (41) being arranged in the slideway (22), and the slideway is used for the limiting column (43) to press or release the rod body (41) when the limiting column (43) slides along the slideway; A clamping structure is provided on a side of the channel (13) away from the second shell (2), the clamping structure comprising a top column (12), the top column (12) being slidably connected to the channel (13), and a first spring (11) being provided at the bottom of the top column (12); The shell is any one of an ellipsoidal, spherical and wavy shape; The slide includes a first sub-slide and a second sub-slide that are alternately connected, the highest point of the first sub-slide is lower than the highest point of the second sub-slide, the first sub-slide is an inverted V-shaped structure or an inverted U-shaped structure, and the second sub-slide is an inverted V-shaped structure or an inverted U-shaped structure.

2. The pressure damage prevention type non-return device according to claim 1, characterized in that: The bottom of the rod body (41) is a reduced diameter section, and a step structure is formed at the reduced diameter portion of the bottom of the rod body (41); the bottom of the first placement cavity (21) is fixedly connected to a limit ring (24), a second spring (23) is arranged between the limit ring (24) and the step structure, and the second spring (23) is arranged coaxially with the rod body (41).

3. The pressure damage prevention type non-return device according to claim 1, characterized in that: The pressing operation mechanism (4) further comprises a pressing handle (42), wherein the pressing handle (42) is fixedly connected to the top of the rod body (41), and the pressing handle (42) is ellipsoidal or spherical.

4. The pressure damage prevention type non-return device according to claim 1, characterized in that: The first shell (1) and the second shell (2) are detachably connected via a clamping structure (5), wherein the clamping structure (5) comprises a first clamping column (52) and at least one second clamping column (54); A second placement cavity (51) is provided at the bottom of the second housing (2); the second clamping column (54) is fixedly connected to the top of the second placement cavity (51); and a protrusion (53) is fixedly connected to one side of the second clamping column (54) close to the first clamping column (52); The first clamping column (52) is fixedly connected to the top of the first shell (1), and a groove is provided on a side of the first clamping column (52) close to the second clamping column (54), and the groove and the protrusion (53) can be clamped with each other.

5. The pressure damage prevention type non-return device according to claim 1, characterized in that: The bottom of the first shell (1) is provided with an adhesive layer (6); and / or, A fixing sticker is arranged in the channel (13).

6. The pressure damage prevention type non-return device according to claim 4, characterized in that: The first shell (1) and the second shell (2) are hingedly connected via a rotating shaft (3) at a side away from the clamping structure (5).

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