Novel filtering assembly and gastrointestinal cannula

Abstract

The utility model relates to the technical field of medical instruments, and discloses a novel filter assembly and a gastrointestinal cannula, the novel filter assembly comprises a first shell, a second shell and a filter screen arranged between the first shell and the second shell; the first shell is provided with a first connector, the second shell is provided with a second connector, and the outer diameter of the first connector is at least partially the same as that of the second connector; the first connector comprises a first outer wall and a first inner hole which are coaxially arranged, the first inner hole is a conical through hole, the sharp end of the conical through hole faces the second connector, fibrous matter and large-particle medicine injected into liquid can be effectively intercepted through the arrangement of the filter screen, the bad condition that the gastrointestinal intubation tube is blocked is avoided, and the gastrointestinal intubation tube is convenient to use. The outer diameters of the first connector and the second connector are at least partially the same, so that the two ends of the filtering assembly can be connected with the main pipe connector of the gastrointestinal cannula, the two ends can be shared, and the gastrointestinal cannula can be conveniently connected with a nutrition device or an injector.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a novel filtering component and a gastrointestinal cannula. Background Art

[0002] Gastrointestinal cannula is a commonly used medical device in clinical practice. It can be used to inject food and medicine into the patient's body for nutritional supplements and treatment for patients who are unable to eat independently. In general, the gastrointestinal cannula needs to be left in the gastrointestinal tract for a long time. In practice, it is found that due to the influence of the liquid channel diameter of the gastrointestinal cannula body itself and the liquid outlet, the gastrointestinal cannula is prone to blockage when inputting drugs containing longer fiber materials and large particles, resulting in the need to replace the gastrointestinal cannula. Repeated insertion and removal of the gastrointestinal cannula causes pain to the patient. At the same time, in the prior art, the specifications of the nutrition device and the syringe connector are different, while the connector of the gastrointestinal cannula is single. In order to ensure the stability of liquid injection into the gastrointestinal cannula, different adapters are often required, causing inconvenience to the doctor's work. Utility Model Content

[0003] The utility model aims to provide a novel filter assembly and gastrointestinal cannula, which can effectively intercept fibrous substances and large-particle medicines injected into liquid, and increase the convenience of a nutrition device and a syringe when injecting liquid into the gastrointestinal cannula.

[0004] In order to solve the above technical problems, the implementation method of the utility model provides a technical solution as follows:

[0005] A novel filter assembly includes a first shell and a second shell axially connected, a filter screen is arranged between the first shell and the second shell; the first shell includes a first substrate and a first joint coaxially arranged with the first substrate, the second shell includes a second substrate and a second joint coaxially arranged with the second substrate, the outer diameters of the first joint and the second joint are at least partially the same; the first joint includes a first outer wall and a first inner hole coaxially arranged, the first inner hole is a conical perforation, and the sharp end of the conical perforation is arranged toward the first substrate. By setting the outer diameters of the first joint and the second joint to be at least partially the same, both ends of the filter assembly can be connected to the main connector of the gastrointestinal cannula, so that both ends are shared, which is convenient for connecting the gastrointestinal cannula with a nutrient device or a syringe.

[0006] Furthermore, the first outer wall is tapered, and the sharp end of the tapered wall is disposed away from the first substrate.

[0007] Furthermore, the second joint includes a second outer wall and a second inner hole which are coaxially arranged, and the longitudinal sections of the second outer wall and the second inner hole are both rectangular.

[0008] Furthermore, the first shell includes a first vertical plate extending vertically along the edge of the first substrate, and the second shell includes a second vertical plate extending vertically along the edge of the second substrate, and the first vertical plate and the second vertical plate are detachably threadedly connected. The detachable fixed connection between the first shell and the second shell is achieved by threading the first vertical plate and the second vertical plate.

[0009] Furthermore, it comprises a filter membrane, and the filter membrane is detachably attached to the surface of the filter net.

[0010] To solve the above technical problems, an embodiment of the utility model also provides a gastrointestinal cannula, comprising a tube body and a main pipe connector arranged at one end of the tube body, and also comprising any of the above-mentioned new filter components, the main pipe connector is provided with a main pipe interface, and the filter component can be plugged and matched with the main pipe interface.

[0011] Furthermore, the filter assembly is integrated with the main pipe joint, and the filter assembly and the main pipe joint are fixedly connected via a connector.

[0012] Furthermore, the first connector of the filter assembly is arranged corresponding to the main pipe interface, and the first connector can be inserted into the main pipe interface for connection and fixation.

[0013] Furthermore, the second connector of the filter assembly is arranged corresponding to the main pipe interface, and the second connector can be inserted into the main pipe interface for connection and fixation.

[0014] Furthermore, it also includes a plugging cap, which is integrally connected and fixed to the main pipe joint through a connector.

[0015] Compared with the prior art, the novel filter assembly and gastrointestinal cannula provided by the utility model have a first shell and a second shell arranged axially, and a filter screen arranged between the first shell and the second shell, so that the fluid injected from the first joint or the second joint must pass through the filter screen, which can effectively intercept the fiber material and large particle medicine in the infusion, ensure the stability of the infusion, and avoid the undesirable situation of gastrointestinal cannula blockage; the first joint and the second joint are arranged with at least partially the same outer diameter, so that both ends of the filter assembly can be connected to the main connector of the gastrointestinal cannula, so that the two ends are shared, which is convenient for the gastrointestinal cannula and the nutrition device. Or the connection of the syringe increases the convenience of the nutrition device and the syringe when injecting liquid into the gastrointestinal cannula; through the setting of the conical first inner hole, the filter component can be directly connected to the Luer cone joint syringe, and the direct infusion of the syringe can be realized quickly and conveniently; through the setting of the second joint, the filter component can be directly embedded in the nutrition device joint; through the setting of the threaded connection between the first shell and the second shell, and the filter membrane mounted on the surface of the filter net, the filter component can be cleaned or replaced in time, so as to ensure the stability of the filtering effect of the filter component, which is conducive to preventing the filter component from being blocked, the flow rate being unstable or the flow being interrupted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0017] Figure 1 is an exploded view of a filter assembly in one embodiment of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of a filter assembly in one embodiment of the utility model;

[0019] Figure 3 is a front view of a filter assembly in one embodiment of the utility model;

[0020] Figure 4 Yes Figure 3 Middle AA section view;

[0021] Figure 5 This is a schematic diagram of a gastrointestinal cannula structure in which the tube body is hidden in one embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of the gastrointestinal cannula structure in another embodiment of the utility model, in which the tube body is hidden;

[0023] Figure 7 It is a schematic diagram of the gastrointestinal intubation structure without the tube body in different embodiments of the utility model.

[0024] Explanation of the reference numerals: 100, filter assembly; 200, main pipe joint; 201, main pipe interface; 202, connector; 300, plugging cap; 10, first shell; 11, first joint; 110, first inner hole; 111, first outer wall; 12, first substrate; 13, first vertical plate; 20, second shell; 21, second joint; 210, second inner hole; 211, second outer wall; 22, second substrate; 23, second vertical plate; 30, filter screen; 301, filter hole; 40, filter cavity. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the accompanying drawings. However, it can be understood by those skilled in the art that in the various embodiments of the utility model, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical schemes claimed for protection in the claims of the present application can be implemented.

[0026] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0027] like Figure 1 As shown, one embodiment provided by the utility model relates to a novel filter assembly 100, comprising a first shell 10 and a second shell 20 which are arranged in an upper and lower combination, a filter screen 30 is arranged between the first shell 10 and the second shell 20, a first joint 11 is protruded from one end of the first shell 10 away from the filter screen 30, and a second joint 21 is protruded from one end of the second shell 20 away from the filter screen 30. The fluid can be injected from the first joint 11 through the filter screen 30 and then flow out from the second joint 21, or injected from the second joint 21 through the filter screen 30 and then flow out from the first joint 11, the outer diameters of the first joint 11 and the second joint 21 are at least partially the same, so that the first joint 11 and the second joint 21 can be plugged and matched with the jack of the same inner diameter, preferably, the first shell 10 and the second shell 20 are coaxially arranged.

[0028] like Figure 2-4As shown, in one embodiment, the first shell 10 includes a first substrate 12, and a first vertical plate 13 extending vertically along the edge of the first substrate 12, and the first shell 10 also includes a first joint 11 coaxially arranged with the first substrate 12, and the first joint 11 and the first vertical plate 13 are respectively located on two sides corresponding to the first substrate 12; the first joint 11 includes a first outer wall 111 and a first inner hole 110 coaxially arranged, and the first joint 11 is a pagoda-shaped joint, that is, the longitudinal section of the first outer wall 111 is conical, wherein the sharp end of the cone is arranged away from the first substrate 12; the first inner hole 110 is a conical perforation, the first inner hole 110 passes through the first substrate 12, the longitudinal section of the first inner hole 110 is conical, and the sharp end of the cone is arranged toward the substrate. Optionally, the longitudinal section of the first outer wall 111 is rectangular. In an exemplary example, the specification of the first inner hole 110 meets the 6% Luer connector standard.

[0029] The second shell 20 includes a second substrate 22 and a second vertical plate 23 extending vertically along the edge of the second substrate 22. The second shell 20 also includes a second joint 21 coaxially arranged with the second substrate 22. The second joint 21 and the second vertical plate 23 are respectively located on two side surfaces corresponding to the second substrate 22. The second joint 21 includes a second outer wall 211 and a second inner hole 210 coaxially arranged. The second joint 21 is cylindrical as a whole, that is, the longitudinal section of the second outer wall 211 is rectangular, and the second inner hole 210 is a through hole with the same inner diameter, that is, the longitudinal section of the second inner hole 210 is rectangular; the second inner hole 210 passes through the second substrate 22. The diameter of the second outer wall 211 is at least partially the same as the diameter of the first outer wall 111, that is, when the longitudinal section of the first outer wall is conical, the diameter of the second outer wall 211 is consistent with the diameter of the sharp end of the first outer wall 111, and when the longitudinal section of the first outer wall is rectangular, the diameter of the second outer wall 211 is the same as the diameter of the first outer wall 111.

[0030] like Figure 4As shown, in one embodiment, the first vertical plate 13 is matched with the second vertical plate 23, and the cross-sections of the first vertical plate 13 and the second vertical plate 23 are both annular. The outer diameter of the first vertical plate 13 is slightly smaller than the inner diameter of the second vertical plate 23, so that the second vertical plate 23 can be sleeved on the outside of the first vertical plate 13, so that a filter cavity 40 with a stable spatial structure is formed between the first substrate 12 and the second substrate 22, and a filter screen 30 parallel to the first substrate 12 and the second substrate 22 is provided in the filter cavity 40, and the filter screen 30 is circular, and a plurality of filter holes 301 are axially penetrated on the filter screen, and the filter holes 301 can have a variety of shapes, and the filter holes 301 can adopt one or more of circular, annular, and cross-shaped. The diameter of the filter screen 30 is larger than the diameter of the first inner hole 110 or the second inner hole 210. Preferably, the diameter of the filter screen 30 is matched with the inner diameter of the first vertical plate 13, that is, the diameter of the filter screen 30 is slightly smaller than the inner diameter of the first vertical plate 13. Preferably, the outer peripheral surface of the first vertical plate 13 is provided with an external thread, and the second vertical plate 23 is provided with an internal thread adapted to the external thread. The first vertical plate 13 and the second vertical plate 23 are threadedly connected and fixed, so that a detachable fixed connection is formed between the first shell 10 and the second shell 20.

[0031] In another embodiment, the first vertical plate 13 is matched with the second vertical plate 23, and the cross sections of the first vertical plate 13 and the second vertical plate 23 are both annular, which is different from the above embodiment in that the outer diameter of the second vertical plate 23 is slightly smaller than the inner diameter of the first vertical plate 13, and the first vertical plate 13 is sleeved on the outside of the second vertical plate 23. Preferably, an outer circumferential surface of the second vertical plate 23 is provided with an external thread, and the first vertical plate 13 is provided with an internal thread adapted to the external thread, and the first vertical plate 13 and the second vertical plate 23 are threadedly connected and fixed, so that a detachable fixed connection is formed between the first shell 10 and the second shell 20.

[0032] In the above-mentioned embodiment, by the detachable setting of the first shell 10 and the second shell 20, the filter net 30 can be cleaned in time to ensure the stability of the filtering effect of the filter component 100, which is beneficial to prevent the filter component 100 from being blocked, the flow rate being unstable or the flow being interrupted. At the same time, by the repeated use of the filter net 30, the use cost of the filter component 100 is reduced.

[0033] In a preferred embodiment, the filter assembly 100 further includes a filter membrane, which is attached to the surface of the filter screen 30, which is conducive to further improving the filtering effect. When facing fluids of different fineness, different filter membranes are selected to adapt to the fluids to ensure the stability of the filtering effect. The filter membrane is a replaceable disposable filter membrane. When switching different input fluids, the filter assembly 100 is more convenient and efficient to use through the quickly replaceable filter membrane.

[0034] like Figure 5-7 As shown, the utility model relates to a gastrointestinal cannula, which includes a tube body (not shown in the drawings), a main pipe joint 200 arranged at one end of the tube body, and any one of the above-mentioned filter components 100 matched with the main pipe joint 200. By setting the first joint and the second joint to have at least partially the same outer diameter, the joints at both ends of the filter component can be connected to the main pipe joint of the gastrointestinal cannula, so that both ends are shared, which facilitates the connection between the gastrointestinal cannula and the nutrition device or syringe, and increases the convenience of the nutrition device and the syringe when injecting liquid into the gastrointestinal cannula.

[0035] Preferably, a plurality of main pipe joints 200 are provided, and the main and main pipe joints 200 are further connected with a plugging cap 300. The plugging cap 300 is a structure widely used in the prior art and will not be described in detail herein.

[0036] like Figure 5-6 As shown, one embodiment of the utility model relates to a gastrointestinal cannula, the gastrointestinal cannula includes two main pipe joints 200, the main pipe joints 200 include a main pipe interface 201 for communicating with an external container, one of the main pipe joints 200 is connected with a plugging cap 300, and the other is connected with a filter assembly 100, the filter assembly 100 and the main pipe joint 200 are connected by a flexible connector 202, so that the main pipe joint 200 and the filter assembly 100 are integrated, which helps to increase the convenience during use; wherein, as Figure 5 As shown, the first connector 11 of the filter assembly 100 is arranged corresponding to the main pipe interface 201. When in use, the first connector 11 is inserted into the main pipe interface 201 for connection and fixation, and the second connector 21 can be connected and fixed with the T-shaped connector of the nutrition device, so that the fluid in the nutrition device is injected into the filter assembly 100, and flows into the tube body of the gastrointestinal cannula after filtering, which can effectively intercept the fiber material and large particle drugs in the infusion, ensure the stability of the infusion, and avoid the adverse situation of gastrointestinal cannula blockage. The nutrition device is such as a feeding bag.

[0037] like Figure 6As shown, in an optional embodiment, the second connector 21 of the filter assembly 100 is arranged corresponding to the main pipe interface 201. When in use, the second connector 21 is inserted into the main pipe interface 201 for connection and fixation, and the first connector 11 can be connected and fixed with the Luer cone connector syringe to achieve direct infusion of the syringe. In another optional embodiment, two main pipe connectors 200 are connected with a filter assembly 100, so that the gastrointestinal cannula can simultaneously meet the filtering requirements of different types of injected fluids.

[0038] like Figure 7 As shown, one embodiment of the utility model relates to a gastrointestinal cannula, which includes two main pipe connectors 200, both of which are connected to a blocking cap 300, and the gastrointestinal cannula also includes a split filter assembly 100. The split arrangement helps to further simplify the gastrointestinal cannula structure, and at the same time, the filter assembly 100 can be selectively used as needed, thereby reducing the manufacturing cost and use cost of the gastrointestinal cannula.

[0039] The utility model provides a novel filter assembly and gastrointestinal cannula. Through the axially arranged first shell and second shell, and the filter screen arranged between the first shell and the second shell, the fluid injected from the first joint or the second joint must pass through the filter screen, which can effectively intercept the fiber material and large particle medicine in the infusion, ensure the stability of the infusion, and avoid the unfavorable situation of gastrointestinal cannula blockage. Through the arrangement of at least partially the same outer diameter of the first joint and the second joint, both ends of the filter assembly can be connected to the main connector of the gastrointestinal cannula, so that the two ends are shared, which is convenient for the gastrointestinal cannula to be connected with the nutrition device or the syringe. and the convenience of injecting liquid into the gastrointestinal cannula with a syringe; through the setting of the conical first inner hole, the filter component can be directly connected to the Luer cone joint syringe, and the direct infusion of the syringe can be realized quickly and conveniently; through the setting of the second joint, the filter component can be directly embedded in the nutrient device joint, and the fluid injected into the nutrient device can be filtered and then input into the tube body; through the setting of the threaded connection between the first shell and the second shell, and the filter membrane mounted on the surface of the filter net, the filter component can be cleaned or replaced in time, so as to ensure the stability of the filtering effect of the filter component, which is conducive to preventing the filter component from being blocked, the flow rate being unstable or the flow being interrupted.

[0040] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A novel filter assembly (100), characterized in that: The invention comprises a first shell (10) and a second shell (20) which are axially connected, wherein a filter screen (30) is arranged between the first shell (10) and the second shell (20); the first shell (10) comprises a first substrate (12) and a first joint (11) which is coaxially arranged with the first substrate (12); the second shell (20) comprises a second substrate (22) and a second joint (21) which is coaxially arranged with the second substrate (22); the outer diameters of the first joint (11) and the second joint (21) are at least partially the same; the first joint (11) comprises a first outer wall (111) and a first inner hole (110) which are coaxially arranged; the first inner hole (110) is a conical through hole, and the sharp end of the conical through hole is arranged toward the first substrate (12).

2. The novel filter assembly (100) according to claim 1 is characterized in that: The first outer wall (111) is in a cone shape, and the sharp end of the cone is arranged away from the first substrate (12).

3. The novel filter assembly (100) according to claim 1 is characterized in that: The second joint (21) comprises a second outer wall (211) and a second inner hole (210) which are coaxially arranged, and the longitudinal sections of the second outer wall (211) and the second inner hole (210) are both rectangular.

4. The novel filter assembly (100) according to claim 1 is characterized in that: The first shell (10) comprises a first vertical plate (13) extending vertically along the edge of the first substrate (12), and the second shell (20) comprises a second vertical plate (23) extending vertically along the edge of the second substrate (22), and the first vertical plate (13) and the second vertical plate (23) are detachably connected by thread.

5. The novel filter assembly (100) according to claim 4 is characterized in that: It comprises a filter membrane, and the filter membrane is detachably attached to the surface of the filter net (30).

6. A gastrointestinal cannula, characterized in that: The invention comprises a pipe body and a main pipe joint (200) arranged at one end of the pipe body, and also comprises a novel filter assembly (100) as described in any one of claims 1 to 5, wherein the main pipe joint (200) is provided with a main pipe interface (201), and the filter assembly (100) can be plugged and matched with the main pipe interface (201).

7. The gastrointestinal cannula according to claim 6, characterized in that: The filter assembly (100) and the main pipe joint (200) are integrally arranged, and the filter assembly (100) and the main pipe joint (200) are fixedly connected via a connector (202).

8. The gastrointestinal cannula according to claim 7, characterized in that: The first connector (11) of the filter assembly (100) is arranged corresponding to the main pipe interface (201), and the first connector (11) can be inserted into the main pipe interface (201) for connection and fixation.

9. The gastrointestinal cannula according to claim 7, characterized in that: The second connector (21) of the filter assembly (100) is arranged corresponding to the main pipe interface (201), and the second connector (21) can be inserted into the main pipe interface (201) for connection and fixation.

10. The gastrointestinal cannula according to claim 6, characterized in that: It also comprises a plugging cap (300), wherein the plugging cap (300) is integrally connected and fixed to the main pipe joint (200) via a connecting body (202).

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