A negative pressure drainage device integrated with a sealable liquid injection channel at the shaft end

Abstract

The utility model relates to negative pressure drainage technical field. A kind of negative pressure drainage device integrated with shaft end can be blocked liquid injection channel, including a drainage tube, and the drainage tube is equipped with the drainage channel and injection channel of parallel arrangement and is opened in;Injection hole is opened on the outer wall of drainage tube along the length of drainage tube setting, injection hole and the inner chamber of injection channel butt joint conduction;The head end of injection channel and drainage channel is all provided with shaft end opening;It further includes a plugging member for blocking the shaft end opening of injection channel, and the plugging member includes sequentially connected hand rod part and plugging part, and plugging part is used to insert the head end of injection channel.The utility model is through the structure of optimizing drainage tube, when the head end of drainage tube is cut according to length requirement, the hand rod part of hand plugging member inserts plugging part into the head end of injection channel, blocks the shaft end of injection channel, guarantees that liquid medicine is exported from injection hole.

Description

TECHNICAL FIELD

[0001] The utility model relates to negative pressure drainage technical field, concretely is negative pressure drainage device. BACKGROUND

[0002] Drainage is a means commonly used in part of operation, at present all adopt negative pressure drainage device to drain patient's internal hydrops, and most negative pressure drainage devices are composed of drainage tube and drainage ball connected with drainage tube.

[0003] The existing drainage tube does not have integrated liquid injection channel, for example, the patent discloses a laparoscope drainage device, and the drainage tube body surface is matched with the administration tube, the drainage tube and the administration tube are independently arranged, need independent processing, and cannot realize integrated processing.

[0004] In addition, the length of the drainage tube needs to be cut according to the depth of insertion in actual use, and currently, how to realize the synchronous length adjustment of the administration pipeline while realizing the quick sealing of the shaft end of the administration pipeline under the condition of cutting and adjusting the length of the drainage tube has not been disclosed. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model provides a negative pressure drainage device integrated with a shaft-end sealable liquid injection channel to solve at least one of the above technical problems.

[0006] In order to achieve the above purpose, the utility model provides a negative pressure drainage device integrated with a shaft-end sealable liquid injection channel, comprising a drainage tube, characterized in that a drainage channel and a medicine injection channel are arranged side by side on the drainage tube.

[0007] A medicine injection hole is arranged on the outer wall of the drainage tube along the length of the drainage tube, and the medicine injection hole is in butt joint conduction with the inner cavity of the medicine injection channel.

[0008] The head end of the medicine injection channel and the drainage channel is provided with a shaft-end opening.

[0009] Further comprising a sealing piece for sealing the shaft-end opening of the medicine injection channel, the sealing piece comprises a hand-held rod part and a sealing part connected in sequence, the sealing part is provided with an outer diameter increasing area with an increasing outer diameter from away from the hand-held rod part to adjacent hand-held rod part, and the sealing part is used for inserting into the head end of the medicine injection channel.

[0010] The utility model optimizes the structure of the drainage tube, when the head end of the drainage tube is cut according to the length requirement, the hand-held rod part of the hand-held sealing piece inserts the sealing part into the head end of the medicine injection channel, seals the shaft end of the medicine injection channel, and ensures that the liquid medicine is guided out of the medicine injection hole.

[0011] Further preferably, the material of the blocking member is polyether ether ketone.

[0012] Further preferably, the blocking part and the hand-held rod part are connected through a necking structure.

[0013] The hand-held rod part and the blocking part are separated at the necking structure. The outer diameter of the necking structure is not greater than the outer diameter of the hand-held rod part.

[0014] Further preferably, two blocking parts are provided, which are arranged axially.

[0015] Further preferably, three drainage channels and one medicine injection channel are provided.

[0016] The three drainage channels and the medicine injection channel are distributed at equal intervals in the circumferential direction.

[0017] Further preferably, the cross section of the drainage channel is fan-shaped.

[0018] The cross section of the medicine injection channel is circular.

[0019] Further preferably, a strip-shaped notch corresponding to the drainage channel is arranged on the outer wall of the drainage tube, and the strip-shaped notch is in communication with the drainage channel.

[0020] The axial length of the strip-shaped notch is less than the axial length of the drainage channel.

[0021] Further preferably, the outer wall of the drainage tube is divided into arc-shaped sub-lateral walls through the strip-shaped notch.

[0022] A developing positioning strip is fixed on any one arc-shaped sub-lateral wall.

[0023] Further preferably, the developing positioning strip is a barium sulfate developing line.

[0024] Further preferably, the width of the strip-shaped notch is 1-1.3mm.

[0025] The axial length of the strip-shaped notch is 250-320mm.

[0026] Further preferably, the inner diameter of the medicine injection channel is greater than the inner diameter of the medicine injection hole.

[0027] Further preferably, a scale line is arranged on the outer wall of the drainage tube.

[0028] The length of the shearing is provided.

[0029] Further preferably, a lateral hole in communication with the medicine injection channel is arranged at the tail of the drainage tube.

[0030] The outer wall of the drainage tube is connected with a hose or a connector for connecting the lateral hole.

[0031] Further preferably, the hose is connected with a needleless connector.

[0032] Alternatively, the connector is a needleless connector.

[0033] Compared with the prior art, the drainage tube has the following beneficial effects:

[0034] The drainage tube has the following beneficial effects: the head end of the drainage tube is cut according to the length requirement, the hand-held rod of the hand-held blocking piece is inserted into the head end of the medicine injection channel, the axial end of the medicine injection channel is blocked, and the liquid medicine is guided out of the medicine injection hole. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a structure schematic view of the drainage tube of the embodiment 1 of the utility model;

[0036] Figure 2 It is a structure schematic view of the drainage tube of the embodiment 1 of the utility model from another perspective;

[0037] Figure 3 It is a structure schematic view of the head end of the embodiment 1 of the utility model;

[0038] Figure 4 It is a structure schematic view of the head end of the drainage tube of the embodiment 1 of the utility model;

[0039] Figure 5 It is a sectional view of the blocking piece of the embodiment 1 of the utility model;

[0040] Figure 6 It is another end view of the blocking piece of the embodiment 1 of the utility model;

[0041] Figure 7 It is a structure schematic view of the embodiment 1 of the utility model;

[0042] Figure 8 It is a sectional view of the tail part of the drainage tube of the embodiment 2 of the utility model.

[0043] Figure 9 It is a sectional view of the tail part of the drainage tube of the embodiment 3 of the utility model.

[0044] In the drawing: 1 is a drainage tube, 2 is a blocking piece, 3 is a collection bag, 4 is a flow regulating valve, 5 is a cut-off clamp, 6 is a negative pressure ball, 7 is a hose, 8 is a connector, 11 is a medicine injection channel, 12 is a drainage channel, 13 is a medicine injection hole, 14 is a strip-shaped notch, 21 is a hand-held rod, and 22 is a blocking part. DETAILED DESCRIPTION

[0045] The utility model makes further illustration in combination with the drawings.

[0046] Referring to Figures 1 to 7 , specific embodiment 1: a negative pressure drainage device integrated with shaft end sealable liquid injection channel, including a drainage tube 1, and the drainage tube 1 is provided with drainage channel 12 and injection channel 11 that are arranged side by side and are set up, the outer wall of drainage tube 1 is provided with injection hole 13 along the length of drainage tube 1, and injection hole 13 is connected with the inner chamber of injection channel 11 and is in communication, and the head end of injection channel 11 and drainage channel 12 is provided with shaft end opening, still including a sealing element 2 for plugging the shaft end opening of injection channel 11, and the sealing element 2 includes sequentially connected handheld rod part 21 and sealing part 22, and the sealing part 22 is provided with the outer diameter increasing area of increasing outer diameter from away from the handheld rod part 21 to adjacent handheld rod part 21, and the sealing part 22 is used for inserting the head end of injection channel 11. The utility model optimizes the structure of drainage tube 1, when the head end of drainage tube 1 is cut according to length requirement, the handheld rod part 21 of handheld sealing element 2 inserts sealing part 22 into the head end of injection channel 11, plugs the shaft end of injection channel 11, and guarantees that the liquid medicine is led out from injection hole 13. The shaft end of injection channel is plugged by sealing part 22. The handheld rod part is separated from the sealing part.

[0047] The sealing part is provided with a check ring structure. Avoid the separation of the sealing part. The sealing part includes a cylindrical body and an extension portion fixed around the cylindrical body, and the outer diameter of the extension portion increases from away from the handheld rod part 21 to adjacent the handheld rod part 21. The inner diameter of the extension portion includes an equal-diameter area matched with the cylindrical body and a gradually-changing area with an increasing inner diameter, which are sequentially arranged from away from the handheld rod part 21 to adjacent the handheld rod part 21. The gradually-changing area is the inner wall of the check ring structure.

[0048] The material of the sealing element 2 is polyether ketone. The material of the drainage tube is silica gel.

[0049] The axial length of the sealing part 22 is 1-2 cm. The sealing part 22 and the handheld rod part 21 are connected through a necking structure. The handheld rod part 21 and the sealing part 22 are separated at the necking structure. The outer diameter of the necking structure is not greater than that of the handheld rod part 21. The extension portion is provided with at least two, and the at least two extension portions are axially arranged.

[0050] The drainage channel 12 is provided with three, and the injection channel 11 is provided with one; the three drainage channels 12 and the injection channel 11 are sequentially distributed at equal intervals in the circumferential direction.

[0051] The cross section of the drainage channel 12 is fan-shaped; and the cross section of the injection channel 11 is circular.

[0052] The outer wall of the drainage tube 1 is provided with strip-shaped notches 14 corresponding to the drainage channels 12, the strip-shaped notches 14 are in communication with the drainage channels 12, and the axial length of the strip-shaped notches 14 is smaller than that of the drainage channels 12. The width of the strip-shaped notches 14 is 1-1.3 mm, and the axial length of the strip-shaped notches 14 is 250-320 mm. The axial length of the strip-shaped notches 14 is 300 mm. The head end of the strip-shaped channel is open.

[0053] The outer wall of the drainage tube 1 is divided into arc-shaped sub-side walls through the strip-shaped notches 14. A developing positioning strip is fixed on any one arc-shaped sub-side wall. The developing positioning strip is a barium sulfate developing line. Alternatively, any one arc-shaped sub-side wall contains barium sulfate material.

[0054] The inner diameter of the medicine injection channel 11 is larger than that of the medicine injection hole 13. The inner diameter of the medicine injection channel 11 is 2 mm, and the inner diameter of the medicine injection hole 13 is 0.5 mm.

[0055] The outer wall of the drainage tube 1 is provided with scale lines. It is convenient to provide the length basis of shearing.

[0056] The tail end of the drainage tube 1 is connected with a negative pressure assembly. The negative pressure assembly includes a negative pressure ball. A flow regulating valve 4 is installed between the drainage tube 1 and the negative pressure ball. The negative pressure ball 6 is connected with a drainage bag. A cut-off clamp 5 is installed between the negative pressure ball 6 and the drainage bag. The drainage bag is connected with a discharge port. The connection of the drainage tube 1 with the negative pressure assembly is a prior structure, so the application will not be described in detail.

[0057] Referring to Figure 8 , in specific embodiment 2, on the basis of specific embodiment 1, a lateral hole in communication with the medicine injection channel 11 is arranged at the tail end of the drainage tube 1, and a connector 8 for connecting the lateral hole is connected to the outer wall of the drainage tube 1. The connector 8 is a needleless connector. It is convenient to connect a syringe for medicine injection. The axial tail end of the medicine injection channel 11 is closed.

[0058] Referring to Figure 9 , in specific embodiment 3, on the basis of specific embodiment 1, a lateral hole in communication with the medicine injection channel 11 is arranged at the tail end of the drainage tube 1, and a hose 7 for connecting the lateral hole is connected to the outer wall of the drainage tube 1. The hose 7 is connected with a needleless connector. It is convenient to connect a syringe for medicine injection. The axial tail end of the medicine injection channel 11 is closed. The connector is provided with a radially outwardly extending interface, and the interface is connected with the lateral hole.

[0059] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the present application.

Claims

1. A negative pressure drainage device integrating a shaft end capable of sealing the injection channel, comprising a drainage tube, characterized in that, The drainage tube is provided with drainage channels and drug injection channels arranged side by side; The outer wall of the drainage tube is provided with a drug injection hole that is arranged along the length of the drainage tube, and the drug injection hole is connected to the inner cavity of the drug injection channel. Both the injection channel and the drainage channel have shaft end openings at their heads. It also includes a sealing member for sealing the shaft end opening of the injection channel. The sealing member includes a handheld lever and a sealing part connected in sequence. The sealing part is provided with an outer diameter increasing region from away from the handheld lever to adjacent to the handheld lever. The sealing part is used to insert into the head end of the injection channel.

2. The negative pressure drainage device integrating a shaft-end sealable injection channel according to claim 1, characterized in that: The sealing component is made of polyetherketone.

3. The negative pressure drainage device integrating a shaft-end sealable injection channel according to claim 1, characterized in that: The sealing part and the handheld lever part are connected by a necking structure.

4. The negative pressure drainage device integrating a shaft-end sealable injection channel according to claim 1, characterized in that: The drainage channel is provided with three channels, and the drug injection channel is provided with one channel. The three drainage channels and the drug injection channel are distributed circumferentially at equal intervals.

5. The negative pressure drainage device integrating a shaft-end sealable injection channel according to claim 1, characterized in that: The cross-section of the drainage channel is fan-shaped; The cross-section of the injection channel is circular.

6. The negative pressure drainage device integrating a shaft-end sealable injection channel according to claim 1, characterized in that: The outer wall of the drainage tube is provided with strip-shaped notches that correspond one-to-one with the drainage channels, and the strip-shaped notches are connected to the drainage channels for conduction; The axial length of the strip-shaped notch is less than the axial length of the drainage channel.

7. A negative pressure drainage device integrating a shaft-end sealable injection channel according to claim 6, characterized in that: The outer wall of the drainage tube is divided into arc-shaped sub-sidewalls by the strip-shaped notch; A developing positioning strip is fixed on any one of the arc-shaped sub-side walls.

8. A negative pressure drainage device integrating a shaft-end sealable injection channel according to claim 6, characterized in that: The width of the strip-shaped notch is 1-1.3 mm; The axial length of the strip-shaped notch is 250-320 mm.

9. A negative pressure drainage device integrating a shaft-end sealable injection channel according to claim 1, characterized in that: The inner diameter of the injection channel is larger than the inner diameter of the injection hole.

10. A negative pressure drainage device integrating a shaft-end sealable injection channel according to claim 1, characterized in that: The tail end of the drainage tube is provided with a lateral hole that connects with the drug injection channel; The outer wall of the drainage tube is connected to a flexible tube or connector for docking with the lateral hole.

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