Surface contact water stop device

Abstract

A surface contact water stopping device is integrally in a C shape and comprises a right portion, a lower portion, a left portion and an upper portion which are sequentially connected and fixed in series, locking pieces are arranged on the upper portion of the right portion and the left portion of the upper portion, a right clamping hole is formed in the right portion, a left clamping hole is formed in the left portion, a clamping groove is formed in the lower portion, an upper clamping portion is arranged below the clamping groove, and the upper clamping portion is fixed to the upper portion. The upper clamping part and the clamping groove are matched and extend in the axis direction of the hose. Compared with the prior art, the water stopping device has the technical effects that the contact distance between the upper clamping part and the hose is long on the axis of the hose, so that the hose is stably extruded by the upper clamping part, and water stopping failure is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and specifically relates to a surface contact water-stopping device. Background Art

[0002] The disposable indwelling needle series products are short-term indwelling infusion products that can reduce the pain of children caused by repeated venipunctures and their fear of injections, reduce parents' anxiety, facilitate clinical medication, emergency and critically ill patients' rescue medication, reduce nurses' workload, and reduce children's pain. Therefore, the indwelling needle series products are widely used in clinical infusion.

[0003] For example, Chinese patent document CN208405595U discloses a water-stop clamp, whose upper surface of the lower supporting part is provided with a storage groove, and the side walls of the storage groove are steps on both sides. The lower supporting part is provided with a storage groove, and the hose is located in the groove without swinging left and right. The upper supporting part has a better squeezing effect on the hose and a good water-stopping effect. However, on the axis of the hose, the contact distance between the upper supporting part and the hose is short. If the upper supporting part is deformed or other reasons occur, the squeezing of the hose by the upper supporting part will become weaker, eventually leading to water stopping failure, blood backflow and other problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is: how to design a surface contact water-stopping device so that the squeezing of the hose by the upper supporting part will not be weakened.

[0005] The technical solution of the present invention is specifically as follows: A surface contact water-stopping device, which is "C"-shaped as a whole, and includes a right part, a lower part, a left part, and an upper part which are connected and fixed in series in sequence. The upper part of the right part and the left part of the upper part are provided with locking parts, the right part is provided with a right clamping hole, the left part is provided with a left clamping hole, the lower part is provided with a clamping groove, and an upper supporting part is provided below the clamping groove. The upper supporting part is fixed on the upper part, the upper supporting part cooperates with the clamping groove, and both extend in the direction of the axis of the hose.

[0006] The shape of the lower surface of the upper holding portion is the same as the shape of the card slot.

[0007] A guard plate is fixed on the right or left part, and the guard plate extends in the direction of the upper supporting part. Two guard arms are provided at the far end, and the space between the two guard arms is a guard groove. The upper supporting part is fixed on the upper part through a connecting piece, and a part of the upper supporting part and the connecting piece as a whole is located in the guard groove.

[0008] The upper supporting part and / or the connecting piece are matched with the protection groove in a clearance.

[0009] The locking member used for opening and closing between the upper part of the right part and the left part of the upper part includes a locking member B and a locking member A. The locking member B is a protrusion fixed on the upper part of the right part, and the locking member A is a recess arranged on the left part of the upper part.

[0010] The upper surface of the upper part is provided with a friction surface.

[0011] The left part includes a deformable arc segment, and the right part is a fixed guard plate.

[0012] Compared with the prior art, the technical effect of the present invention is that, on the axis of the hose, the contact distance between the upper holding part and the hose is longer, resulting in stable squeezing of the hose by the upper holding part, thus avoiding water stopping failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the present invention. DETAILED DESCRIPTION

[0014] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments thereof.

[0015] like Figure 1 A surface contact water-stopping device is in the shape of a "C" as a whole, and includes a right part 1, a lower part 2, a left part 3, and an upper part 4 which are connected and fixed in series in sequence. The upper part of the right part 1 and the left part of the upper part 4 are provided with a locking member, and the locking member is used for opening and closing between the upper part of the right part 1 and the left part of the upper part 4.

[0016] In order to facilitate the opening and closing of the locking element, the left portion 3 includes a deformable arc segment 104. When the locking element is switched between opening and closing, the deformable arc segment 104 itself can be deformed and adaptively adjusted.

[0017] The right part 1 is provided with a right clamping hole 301, the left part 3 is provided with a left clamping hole 105, and the lower part 2 is provided with a clamping groove 202. The right clamping hole 301, the left clamping hole 105, and the clamping groove 202 are used for the hose to pass through.

[0018] An upper holding portion 201 is provided below the slot 202 . The upper holding portion 201 is fixed on the upper portion 4 . The upper holding portion 201 cooperates with the slot 202 , and both extend along the axial direction of the hose.

[0019] In order to conveniently squeeze the hose into a thin layer, the shape of the lower surface of the upper holding portion 201 is the same as the shape of the clamping groove 202 .

[0020] During the descent process, in order to prevent the upper supporting part 201 from shaking in the front-to-back direction (that is, in the inner and outer directions perpendicular to the screen), a guard plate 303 is fixed on the right part 1 or the left part 3, and the guard plate 303 extends in the direction of the upper supporting part 201. Two guard arms 304 are provided at its far end (the end away from the right part 1 or the left part 3), and the space between the two guard arms 304 is a guard groove 302.

[0021] The upper holding part 201 is fixed to the upper part 4 by the connecting piece 204. A part of the upper holding part 201 and the connecting piece 204 is located in the protective groove 302. When the upper holding part 201 moves downward, the radial constraint on the upper holding part 201 is maintained to enable it to move on the correct path.

[0022] For the convenience of control, the upper holding portion 201 and / or the connecting member 204 are loosely matched with the protection groove 302 .

[0023] The locking components used for opening and closing between the upper portion of the right part 1 and the left portion of the upper portion 4 include a locking component B102 and a locking component A103. The locking component B102 is a protrusion fixed on the upper portion of the right part 1, and the locking component A103 is a recess arranged on the left portion of the upper portion 4.

[0024] In order to facilitate the opening and closing of the locking member, a friction surface 101 is provided on the upper surface of the upper portion 4 to facilitate the movement of the upper portion 4 by the hands of medical staff.

[0025] The left part 3 will be deformed, and it is best to fix the guard plate 303 on the right part 1.

[0026] Its working principle is: S1. During normal use (i.e., water flows through the hose), the hose passes through the right clamp hole 301, the clamp slot 202, and the left clamp hole 105 in sequence. Figure 1 In this state, the upper supporting part 201 does not contact the hose, and the medicine in the hose flows normally.

[0027] S2. When water is stopped (i.e. water flows through the hose), the area where the locking piece A103 is located is pressed downward, and the upper part 4 moves downward to complete the locking of the locking piece B102 and the locking piece A103. During this process, the upper supporting part 201 moves downward synchronously with the upper part 4. At this time, the upper part of the hose is the upper supporting part 201, the lower part is the card slot 202, and the two sides are the side walls 203 of the card slot 202 - the four directions of the hose are all constrained. When the upper supporting part 201 is pressed, the hose will not move in its radial direction. Therefore, when the upper supporting part 201 is pressed downward, it completes the squeezing of the hose - making the hose unable to flow, completing the water stopping.

[0028] Features of this application: S1. The present invention extends on the axis of the hose, and the contact distance between the upper holding part and the hose is relatively long, which can maintain the long-distance squeezing of the hose by the upper holding part. It does not matter if there is a small area of ​​the hose that is not cut off by the upper holding part. As long as any small area of ​​the hose is cut off by the upper holding part, water stopping can be completed. That is to say, the upper holding part and the hose are in overall surface contact, and the water stopping effect is more stable and reliable, which prevents the phenomenon of loose water stopping, no water stopping, blood return, etc.

[0029] S2. When the upper holding part 201 is pressed, the hose will not move in its radial direction (see above, plus the constraints of the right clamping hole 301 and the left clamping hole 105). Therefore, when the upper holding part 201 is pressed down, it squeezes the hose - making the hose unable to flow and completing water stopping.

[0030] S3. The upper holding part 201 is fixed to the upper part 4 through the connecting piece 204. A part of the upper holding part 201 and the connecting piece 204 is located in the protective groove 302. When the upper holding part 201 moves downward, the radial constraint on the upper holding part 201 is maintained to make it move on the correct path. Its axis can be kept consistent with the axis of the slot 202 and the axis of the hose.

[0031] For other contents, please refer to the prior art.

[0032] The above description is only the preferred implementation mode of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the protection scope of the present invention.

Claims

1. A surface contact water-stopping device, which is in a "C" shape as a whole, and comprises a right part (1), a lower part (2), a left part (3), and an upper part (4) which are connected and fixed in series in sequence, the upper part of the right part (1) and the left part of the upper part (4) are provided with a locking member, the right part (1) is provided with a right clamping hole (301), the left part (3) is provided with a left clamping hole (105), the lower part (2) is provided with a clamping groove (202), and an upper supporting part (201) is provided below the clamping groove (202), characterized in that: The upper holding portion (201) is fixed on the upper portion (4), the upper holding portion (201) cooperates with the clamping groove (202), and both extend along the axial direction of the hose.

2. The surface contact water stopping device according to claim 1, characterized in that: The shape of the lower surface of the upper holding portion (201) is the same as the shape of the clamping slot (202).

3. The surface contact water stopping device according to claim 1, characterized in that: A guard plate (303) is fixed on the right part (1) or the left part (3), the guard plate (303) extends in the direction where the upper supporting part (201) is located, and two guard arms (304) are provided at the far end thereof, the space between the two guard arms (304) is a guard groove (302), the upper supporting part (201) is fixed on the upper part (4) via a connecting piece (204), and a portion of the upper supporting part (201) and the connecting piece (204) as a whole is located in the guard groove (302).

4. The surface contact water stopping device according to claim 3, characterized in that: The left part (3) comprises a deformed arc segment (104), and the right part (1) has a fixed guard plate (303).

5. The surface contact water stopping device according to claim 3, characterized in that: The upper supporting portion (201) and / or the connecting piece (204) are clearance-matched with the protection groove (302).

6. The surface contact water stopping device according to claim 1, characterized in that: The locking member used for opening and closing the upper part of the right part (1) and the left part of the upper part (4) comprises a locking member B (102) and a locking member A (103), wherein the locking member B (102) is a protrusion fixed to the upper part of the right part (1), and the locking member A (103) is a recess arranged on the left part of the upper part (4).

7. The surface contact water stopping device according to claim 1, characterized in that: The upper surface of the upper part (4) is provided with a friction surface (101).

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