A negative pressure suction gastric tube with the function of detecting occult blood

Abstract

In the technical field of liquid occult blood detection of the present invention, the present invention discloses a negative pressure suction gastric tube with the function of detecting occult blood, including a front-end pipeline and a negative pressure suction pipeline. A connection end is fixedly connected to the front-end pipeline, and a closing plate for switching the passage is rotatably connected at the connection end. A connection hose is fixedly connected to the end of the occult blood detection pipeline. The obstruction measurement mechanism includes an obstruction block and a test strip, and the obstruction measurement mechanism is fixedly connected to the top of the inner wall of the occult blood detection pipeline; the channel for liquid flow can be switched, the design of the occult blood detection pipeline is increased, and at the same time, it is used synchronously during the detection process and the suction process. During observation, the test strip can be guided through the annular guiding deflection groove and the observation flat groove, so that the detection surface of the test strip is transferred to the observation window while ensuring the convenience of observation. Through the wiping of the detection test strip by the annular guiding deflection groove and the absence of liquid inside the observation area, the observation of the detection test strip is clearer.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid occult blood detection, and specifically to a negative pressure suction gastric tube with the function of detecting occult blood. Background Art

[0002] When draining gastrointestinal fluids, doctors observe the fluid form. When suspecting the presence of gastrointestinal fluids, they often drain the fluid to an external area and perform occult blood detection using test strips. In this process, the operation is rather cumbersome. Therefore, the existing negative pressure suction gastric tube is redesigned so that the negative pressure suction gastric tube can meet the doctor's need to detect the occult blood condition of the fluid. Summary of the Invention

[0003] The purpose of the present invention is to provide a negative pressure suction gastric tube with the function of detecting occult blood to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution:

[0005] A negative pressure suction gastric tube with the function of detecting occult blood includes a front-end pipeline and a negative pressure suction pipeline. A connection end is fixedly connected to the front-end pipeline. A detachable occult blood detection pipeline is connected between the front-end pipeline and the negative pressure suction pipeline. A closing plate for switching the passage is rotatably connected at the connection end;

[0006] One end of the occult blood detection pipeline is detachably connected to the front-end pipeline. A reflux connection pipeline is fixedly connected to the top of the negative pressure suction pipeline. A connection hose is fixedly connected to the end of the occult blood detection pipeline. The connection hose and the reflux connection pipeline are detachably connected through a connection joint. The front-end pipeline, the occult blood detection pipeline, the connection hose, and the negative pressure suction pipeline form a detection reflux passage. An obstruction measurement mechanism and a detection observation control mechanism are installed inside the occult blood detection pipeline;

[0007] The obstruction measurement mechanism includes an obstruction block and a test strip. The obstruction measurement mechanism is fixedly connected to the inner wall top of the occult blood detection pipeline. One end of the test strip is fixedly connected to the inner wall top surface of the occult blood detection pipeline through an elastic pulling rope. The other end of the test strip is fixedly connected to a traction rope. The traction rope passes through an annular guiding deflection groove formed on the outer surface of the obstruction block and an observation flat groove formed inside the obstruction block and enters the detection observation control mechanism. When the detection observation control mechanism is in an unused state, the test strip is attached to the inclined surface on the side of the obstruction block close to the connection end;

[0008] The surface of the occult blood detection pipeline is fixedly connected with an observation window corresponding to the observation flat groove. The detection observation control mechanism includes a closed bin fixedly connected with the occult blood detection pipeline and a winding roller rotatably connected inside the closed bin. The traction rope is wound on the outer surface of the winding roller.

[0009] As a further scheme of the present invention: Rubber layers are fixedly connected to both sides of the inner wall of the annular guiding and deflecting groove, and a Teflon film is attached to the surface of the rubber layer.

[0010] As a further scheme of the present invention: An access switching control knob for controlling the rotation of the closing plate is rotatably connected to the outside of the front pipeline, and a winding control knob for controlling the rotation and winding of the winding roller is rotatably connected to the outside of the closed bin.

[0011] As a further scheme of the present invention: A liquid observation plate bin is fixedly connected to the front pipeline. The liquid observation plate bin is a thin sheet type with a transparent communication channel having a channel inside, and the thickness of the liquid observation plate bin is less than the diameter of the front pipeline.

[0012] As a further scheme of the present invention: A reflux control valve is fixedly connected to the reflux connection pipeline.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The present invention improves the existing negative pressure suction gastric tube, enables the switching of the liquid flow channel, adds the design of the occult blood detection pipeline, and simultaneously uses it synchronously during the detection process and the suction process. Through the support of the blocking block for the test strip, while increasing the contact effect, during observation, the test strip can be guided through the annular guiding and deflecting groove and the observation flat groove, so that the detection surface of the test strip is transferred to the observation window while ensuring the convenience of observation, and the detection test strip can be wiped through the annular guiding and deflecting groove and there is no liquid inside the observation area, making the observation of the detection test strip clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic cross-sectional view of a negative pressure suction gastric tube with the function of detecting occult blood;

[0017] Figure 2It is a partial front view schematic diagram of a negative pressure suction gastric tube with the function of detecting occult blood;

[0018] Figure 3 It is a front view schematic diagram of a negative pressure suction gastric tube with the function of detecting occult blood;

[0019] Figure 4 It is a top view schematic diagram of a negative pressure suction gastric tube with the function of detecting occult blood;

[0020] In the figure: 1. Front-end pipeline; 11. Connection end; 12. Sealing plate; 13. Passage switching control knob; 14. Liquid observation plate bin; 2. Negative pressure suction pipeline; 21. Return connection pipeline; 22. Return control valve; 3. Occult blood detection pipeline; 31. Observation window; 32. Connection hose; 33. Connection joint; 4. Obstruction measurement mechanism; 41. Obstruction block; 42. Detection test strip; 43. Annular guiding deflection groove; 44. Elastic pulling rope; 45. Observation flat groove; 46. Traction rope; 5. Detection and observation control mechanism; 51. Sealing bin; 52. Winding roller; 53. Winding control knob. Specific implementation method

[0021] Please refer to Figures 1 - 4 :

[0022] It includes a front-end pipeline 1 and a negative pressure suction pipeline 2. A connection end 11 is fixedly connected to the front-end pipeline 1. An occult blood detection pipeline 3 is detachably connected between the front-end pipeline 1 and the negative pressure suction pipeline 2. A sealing plate 12 for switching the passage is rotatably connected at the connection end 11;

[0023] First, the front-end pipeline 1 and the negative pressure suction pipeline 2 are the same as the existing ones. The negative pressure suction pipeline 2 is connected to a negative pressure bottle, so that the liquid enters the negative pressure suction pipeline 2 through the front-end pipeline 1 and is collected into the negative pressure bottle through the negative pressure suction pipeline 2. In order to increase the convenience of detection, a connection end 11 is provided at the front end of the front-end pipeline 1. The occult blood detection pipeline 3 is detachably connected to the connection end 11 and is switched by the sealing plate 12. When the sealing plate 12 is located at the occult blood detection pipeline 3, the front-end pipeline 1 is communicated with the negative pressure suction pipeline 2, and the connected liquid can enter the negative pressure bottle through the front-end pipeline 1 and the negative pressure suction pipeline 2. During the switching, the sealing plate 12 seals the negative pressure suction pipeline 2, while the front-end pipeline 1, the occult blood detection pipeline 3, and the negative pressure suction pipeline 2 form a connection. At this time, the negative pressure acts in the occult blood detection pipeline 3, so that the liquid inside the front-end pipeline 1 enters the inside of the occult blood detection pipeline 3 to complete the detection, and the detected liquid then enters the negative pressure bottle for collection;

[0024] One end of the occult blood detection pipeline 3 is detachably connected to the front-end pipeline 1. A reflux connection pipeline 21 is fixedly connected to the top of the negative pressure suction pipeline 2. A connection hose 32 is fixedly connected to the end of the occult blood detection pipeline 3. The connection hose 32 and the reflux connection pipeline 21 are detachably connected through a connection joint 33. The front-end pipeline 1, the occult blood detection pipeline 3, the connection hose 32, and the negative pressure suction pipeline 2 form a detection reflux path. An obstruction measurement mechanism 4 and a detection observation control mechanism 5 are installed inside the occult blood detection pipeline 3;

[0025] Since the occult blood detection pipeline 3 needs to be connected to the front-end pipeline 1 and the negative pressure suction pipeline 2, a reflux connection pipeline 21 is provided at the top of the negative pressure suction pipeline 2. After the occult blood detection pipeline 3 is fixed to the connection end 11, it is connected to the reflux connection pipeline 21 through the connection hose 32. In order to increase the sealing effect of the connection, a connection joint 33 is provided on the connection hose 32. After being fixed to the reflux connection pipeline 21 through the connection joint 33, a communicating pipeline is formed. At this time, the obstruction measurement mechanism 4 can flow inside the occult blood detection pipeline 3, and the flowing liquid can be detected by the obstruction measurement mechanism 4. However, since the liquid has a certain color, when the test paper color is not taken out, the liquid will interfere with the doctor's observation;

[0026] The obstruction measurement mechanism 4 includes an obstruction block 41 and a test paper 42. The obstruction measurement mechanism 4 is fixedly connected to the inner wall top of the occult blood detection pipeline 3. One end of the test paper 42 is fixedly connected to the inner wall top surface of the occult blood detection pipeline 3 through an elastic pulling rope 44. The other end of the test paper 42 is fixedly connected to a traction rope 46. The traction rope 46 passes through an annular guiding deflection groove 43 formed on the outer surface of the obstruction block 41 and an observation flat groove 45 formed inside the obstruction block 41 and enters the detection observation control mechanism 5. When the detection observation control mechanism 5 is in an unused state, the test paper 42 is attached to the inclined surface on the side of the obstruction block 41 close to the connection end 11;

[0027] First, the liquid needs to be in full contact with the test strip 42. To enhance the reaction effect of the test strip, a blocking block 41 is provided. The side of the blocking block 41 close to the connection end 11 has an inclined surface, which can reduce the obstruction to the liquid flow. At this time, to make the fixation of the test strip 42 more stable, an elastic pulling rope 44 is arranged inside the occult blood detection pipeline 3. The inner wall of the occult blood detection pipeline 3 can be provided with a wire groove to accommodate the elastic pulling rope 44. Under the traction of the traction rope 46, after the two ends of the test strip 42 are fixed in cooperation with the traction rope 46, the test strip 42 is then attached to the surface of the blocking block 41. When the liquid flows through at this time, the reaction starts through the contact between the test strip 42 and the liquid. During this process, the test strip 42 cannot be clearly observed. Therefore, an annular guiding and deflecting groove 43 and an observation flat groove 45 are provided. Since the annular guiding and deflecting groove 43 is connected to the observation flat groove 45, at this time, the traction rope 46 is controlled by the detection and observation control mechanism 5. After being pulled, the test strip 42 enters the inside of the blocking block 41 through the annular guiding and deflecting groove 43 and deflects, and corresponds to the observation window 31 after passing through the observation flat groove 45. At this time, the detection surface of the test strip 42 is flattened, and the tester can observe the test strip 42 through the observation window 31 to judge the occult blood situation. With a clever structure, the convenience of the test strip detection and the convenience of switching observation are ensured. Since the occult blood detection pipeline 3 is a disposable structure, such a simplified structure is more in line with the use of disposable products, reducing costs, and there is no influence of liquid in the observation flat groove 45, so that the observation of the test strip 42 is clearer and more detailed;

[0028] An observation window 31 corresponding to the observation flat groove 45 is fixedly connected to the surface of the occult blood detection pipeline 3. The detection and observation control mechanism 5 includes a closed chamber 51 fixedly connected to the occult blood detection pipeline 3 and a winding roller 52 rotatably connected inside the closed chamber 51. The traction rope 46 is wound on the outer surface of the winding roller 52;

[0029] By fixedly connecting the closed chamber 51 to the occult blood detection pipeline 3 or integrally forming the closed chamber 51 with the occult blood detection pipeline 3, a closed space is formed inside the occult blood detection pipeline 3 at this time to prevent the liquid from flowing outside through the occult blood detection pipeline 3, while the winding roller 52 rotates inside the closed chamber 51. At this time, the winding roller 52 can wind the traction rope 46. By winding the traction rope 46, the test strip 42 can enter the annular guiding and deflecting groove 43 and the observation flat groove 45, so as to change the display direction of the test strip;

[0030] Rubber layers are fixedly connected to both sides of the inner wall of the annular guiding and deflecting groove 43, and Teflon films are attached to the surfaces of the rubber layers;

[0031] The design of the rubber layer enables the liquid on the surface of the test strip 42 to be scraped out when passing through the annular guiding deflection groove 43, and the non-stick property of the Teflon film can prevent excessive friction and avoid scratching on the surface of the test strip 42;

[0032] The outer part of the front-end pipeline 1 is rotatably connected with a passage switching control knob 13 for controlling the rotation of the closing plate 12, and the outer part of the closed bin 51 is rotatably connected with a winding control knob 53 for controlling the rotation and winding of the winding roller 52;

[0033] The passage switching control knob 13 is mainly used to control the opening of the closing plate 12. The front-end pipeline 1 and the negative pressure suction pipeline 2 are non-disposable structures, so the passage switching control knob 13 can be used for a long time. To ensure sealing, a rotational sealing structure can be set at the connection rotating shaft of the passage switching control knob 13 and the front-end pipeline 1. Similarly, a rotational sealing structure is also adopted at the rotational connection of the winding control knob 53 and the closed bin 51 to ensure the sealing effect. Through the control of the winding control knob 53 and the passage switching control knob 13, the pipeline switching operation is completed;

[0034] A liquid observation plate bin 14 is fixedly connected to the front-end pipeline 1. The liquid observation plate bin 14 is a thin plate type and has a transparent communication channel with a channel inside. The thickness of the liquid observation plate bin 14 is less than the diameter of the front-end pipeline 1;

[0035] First, when a doctor decides whether to conduct an occult blood test, it will first serve the purpose of making a preliminary judgment on the liquid. Since the front-end pipeline 1 often uses a cylindrical pipeline, the suspicious substances near the center of the pipeline are easily overlooked. Therefore, the liquid observation plate bin 14 is set. After the liquid flowing through the front-end pipeline 1 enters the inside of the liquid observation plate bin 14, the liquid is flattened and compressed, reducing the liquid thickness at this time. Thus, when observing, it is easier to find the suspicious substances and then decide to conduct an occult blood test.

[0036] A reflux control valve 22 is fixedly connected to the reflux connection pipeline 21; since when the front-end pipeline 1 and the negative pressure suction pipeline 2 are in communication, the liquid is very easy to enter the occult blood detection pipeline 3 reversely through the connection hose 32, causing pollution to the clean occult blood detection pipeline 3. Therefore, when the closing plate 12 is not opened, the reflux connection pipeline 21 is in a closed state through the reflux control valve 22.

[0037] The above-mentioned is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A negative pressure suction gastric tube with the function of detecting occult blood, comprising a front-end pipeline (1) and a negative pressure suction pipeline (2), characterized in that: A connection end (11) is fixedly connected to the front-end pipeline (1). A fecal occult blood detection pipeline (3) is detachably connected between the front-end pipeline (1) and the negative pressure suction pipeline (2). A closing plate (12) for switching the passage is rotatably connected at the connection end (11). One end of the fecal occult blood detection pipeline (3) is detachably connected to the front-end pipeline (1). A reflux connection pipeline (21) is fixedly connected to the top of the negative pressure suction pipeline (2). A connection hose (32) is fixedly connected to the end of the fecal occult blood detection pipeline (3). The connection hose (32) and the reflux connection pipeline (21) are detachably connected through a connection joint (33). The front-end pipeline (1), the fecal occult blood detection pipeline (3), the connection hose (32), and the negative pressure suction pipeline (2) form a detection reflux passage. An obstruction measurement mechanism (4) and a detection observation control mechanism (5) are installed inside the fecal occult blood detection pipeline (3). The obstruction measurement mechanism (4) includes an obstruction block (41) and a test strip (42). The obstruction measurement mechanism (4) is fixedly connected to the inner wall top of the fecal occult blood detection pipeline (3). One end of the test strip (42) is fixedly connected to the inner wall top surface of the fecal occult blood detection pipeline (3) through an elastic pulling rope (44). The other end of the test strip (42) is fixedly connected to a traction rope (46). The traction rope (46) passes through an annular guiding and deflecting groove (43) formed on the outer surface of the obstruction block (41) and an observation flat groove (45) formed inside the obstruction block (41) and enters the detection observation control mechanism (5). When the detection observation control mechanism (5) is in an unused state, the test strip (42) is attached to the inclined surface on the side of the obstruction block (41) close to the connection end (11). An observation window (31) corresponding to the observation flat groove (45) is fixedly connected to the surface of the fecal occult blood detection pipeline (3). The detection observation control mechanism (5) includes a closed chamber (51) fixedly connected to the fecal occult blood detection pipeline (3) and a winding roller (52) rotatably connected inside the closed chamber (51). The traction rope (46) is wound on the outer surface of the winding roller (52).

2. The negative pressure suction gastric tube with the function of detecting occult blood according to claim 1, characterized in that: Rubber layers are fixedly connected to both sides of the inner wall of the annular guiding and deflecting groove (43). A Teflon film is attached to the surface of the rubber layer.

3. The negative pressure suction gastric tube with the function of detecting occult blood according to claim 1, characterized in that: A passage switching control knob (13) for controlling the rotation of the closing plate (12) is rotatably connected to the outside of the front-end pipeline (1). A winding control knob (53) for controlling the rotation and winding of the winding roller (52) is rotatably connected to the outside of the closed chamber (51).

4. A negative pressure suction gastric tube with a function of detecting occult blood according to claim 1, characterized in that: A liquid observation plate chamber (14) is fixedly connected to the front-end pipeline (1). The liquid observation plate chamber (14) is a thin sheet type and has a transparent communication channel inside. The thickness of the liquid observation plate chamber (14) is less than the diameter of the front-end pipeline (1).

5. A negative pressure suction gastric tube with the function of detecting occult blood according to claim 1, characterized in that: A reflux control valve (22) is fixedly connected to the reflux connection pipeline (21).

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