Negative pressure suction tube

Abstract

The utility model discloses a negative pressure suction tube which comprises a flushing pipeline and a negative pressure pipeline. The flushing pipeline comprises a first extension pipe, a buffer cavity and a water injection pipe; one side of the buffer cavity is communicated with the first extension pipe, and the other side of the buffer cavity is communicated with the water injection pipe; the negative pressure pipeline comprises a second extension pipe, a control pipe and a suction pipe; one end of the control tube penetrates through the buffer cavity and then is communicated with the second extension tube, and the other end of the control tube penetrates through the buffer cavity and then is communicated with the suction tube; a control hole is formed in the side wall of the control pipe. The flushing and aspirating device has the advantages that two different operations of flushing and aspirating are completed continuously, the frequency of replacing surgical instruments is changed, the surgical time is shortened, and meanwhile stimulation to a patient due to frequent replacement of the surgical instruments is relieved; a groove is formed in the buffer cavity to expose the negative pressure control hole, so that the position of the negative pressure control hole can be quickly positioned in the operation process, and the situation that the negative pressure control hole is difficult to find due to deviation of the tube body is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and specifically relates to a negative pressure suction tube. Background Art

[0002] Neurosurgery has a narrow surgical field and is performed with the assistance of a microscope. A microsuction device can promptly clean blood stains in the surgical field and is an essential piece of equipment for neurosurgery. During neurosurgery, the surgical field must be intermittently flushed with clean water using a flusher to keep it clean. This requires frequent flushing and suctioning during neurosurgery, and the constant replacement of surgical instruments, resulting in the frequent movement of different instruments in and out of the surgical field, wasting a significant amount of surgical time. Furthermore, the frequent movement of surgical instruments in and out of the narrow surgical area is bound to cause damage to the surrounding tissues, resulting in minor injuries such as contusions and severe nerve rupture, which can even endanger the patient's life.

[0003] In view of the above problems, the utility model provides a negative pressure suction tube. Utility Model Content

[0004] In order to overcome the problems raised in the background technology, the utility model provides a negative pressure suction tube.

[0005] A negative pressure suction tube, comprising a flushing pipeline and a negative pressure pipeline; the flushing pipeline comprises a first extension tube, a buffer chamber and a water injection pipe; one side of the buffer chamber is connected to the first extension tube, and the other side is connected to the water injection pipe; the negative pressure pipeline comprises a second extension tube, a control tube and a suction tube; one end of the control tube passes through the buffer chamber and is connected to the second extension tube, and the other end passes through the buffer chamber and is connected to the suction tube; a control hole is provided on the side wall of the control tube.

[0006] Furthermore, a first pre-bent section is provided inside the first extension tube; a second pre-bent section is provided inside the second extension tube; and the first pre-bent section is fixedly connected to the second pre-bent section.

[0007] Furthermore, the diameter of the first extension tube is smaller than or equal to the diameter of the second extension tube.

[0008] Furthermore, the length of the first extension pipe is greater than the length of the water injection pipe.

[0009] Furthermore, the length of the second extension tube is greater than the length of the suction tube.

[0010] Furthermore, a connecting structure is provided at one end of the water injection pipe away from the buffer chamber; the connecting structure is fixedly connected to the water injection pipe.

[0011] Furthermore, a sealing structure is provided at one end of the suction tube away from the control tube; and the sealing structure is detachably connected to the suction tube.

[0012] Furthermore, the cross-sectional area of the first extension tube is smaller than the maximum cross-sectional area of the cache cavity.

[0013] Furthermore, the inner diameter of the second extension tube is equal to the inner diameter of the control tube.

[0014] Furthermore, the inner diameter of the water injection pipe is smaller than the inner diameter of the suction pipe.

[0015] Beneficial effects of the utility model:

[0016] 1. Consistently complete the two different operations of flushing and suction, reduce the frequency of changing surgical instruments, shorten the operation time, and reduce the stimulation to the patient caused by frequent changes of surgical instruments;

[0017] 2. A groove is provided inside the buffer chamber to expose the negative pressure control hole, which facilitates quick positioning of the negative pressure control hole during surgery and prevents difficulty in finding the negative pressure control hole due to deviation of the tube body;

[0018] 3. A first pre-bent section is provided inside the first extension tube; a second pre-bent section is provided inside the second extension tube; the first pre-bent section is fixedly connected to the second pre-bent section, so that the front end of the entire device is pre-bent, so that the front end of the negative pressure suction tube can reach the patient's lesion area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a negative pressure suction tube for implementing the present utility model;

[0020] Figure 2 This is a front view of a negative pressure suction tube for implementing the present utility model;

[0021] Figure 3 for Figure 2 AA sectional view;

[0022] Figure 4 for Figure 2 BB cross-sectional view;

[0023] Figure 5 for Figure 2 CC sectional view;

[0024] Figure 6 A top view of a negative pressure suction tube for implementing the present utility model;

[0025] Figure 7 for Figure 6 DD sectional view;

[0026] In the figure, 1, flushing pipeline; 2, negative pressure pipeline; 11, water injection pipe; 12, buffer chamber; 13, first extension pipe; 21, suction pipe; 22, control pipe; 23, second extension pipe; 24, sealing structure; 221, control hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The present invention can also be implemented or applied through different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "length", "up", "down", "front", "back", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0030] like Figure 1-7 The negative pressure suction tube shown includes an irrigation pipeline 1 and a negative pressure pipeline 2. The irrigation pipeline 1 includes a first extension tube 13, a buffer chamber 12, and a water injection pipe 11. One side of the buffer chamber 12 is connected to the first extension tube 13, and the other side is connected to the water injection pipe 11. The negative pressure pipeline 2 includes a second extension tube 23, a control tube 22, and a suction pipe 21. One end of the control tube 22 passes through the buffer chamber 12 and is connected to the second extension tube 23, and the other end passes through the buffer chamber 12 and is connected to the suction pipe 21. A control hole 221 is provided on the side wall of the control tube 22. Consistently completing the two different operations of irrigation and suction reduces the frequency of changing surgical instruments, shortens the operation time, and reduces the irritation to the patient caused by frequent changes of surgical instruments.

[0031] The buffer cavity 12 protrudes from the outside of the control tube 22, and a groove is provided inside the buffer cavity 12 to expose the negative pressure control hole 221, which is convenient for quickly locating the position of the negative pressure control hole 221 during the operation, and for controlling the negative pressure suction by blocking the negative pressure control hole 221.

[0032] Another function of the buffer chamber 12 is to smooth the flow rate, preventing uneven flushing that could irritate the surgical area and cause physiological discomfort in the patient, leading to convulsions and other reactions that could affect the surgical process. During the flushing process, water first enters the buffer chamber 12, which has a larger cross-sectional area, before flowing through the first extension tube 13 to the surgical area.

[0033] In some embodiments of the present application, a first pre-bent section is provided inside the first extension tube 13; a second pre-bent section is provided inside the second extension tube 23; the first pre-bent section is fixedly connected to the second pre-bent section, so that the front end of the entire instrument is pre-bent, so that the front end of the negative pressure suction tube can reach the patient's diseased area through a tortuous passage in the patient's body.

[0034] Furthermore, the diameter of the first extension tube 13 is equal to the diameter of the second extension tube 23. This allows the flushing flow rate to be equal to the suction flow rate. Flushing and negative pressure suction can be performed simultaneously. During the flushing operation, the negative pressure line 2 draws out the water injected into the patient's body.

[0035] Alternatively, the diameter of first extension tube 13 is smaller than that of second extension tube 23, resulting in a smaller irrigation flow rate than suction flow rate. This reduces the amount of water entering the patient's body during irrigation and shortens the time required for vacuum suction. During use, irrigation and vacuum suction can be performed simultaneously. The vacuum line 2 simultaneously extracts the water injected into the patient's body during irrigation and the patient's bodily fluids, enhancing the irrigation effect and quickly clearing the surgical field.

[0036] In some examples of the present application, the length of the first extension tube 13 is greater than the length of the water injection tube 11. The first extension tube 13 is the tube that enters the patient's body. The longer the first extension tube 13 is, the deeper it can enter the patient's body, which increases the applicability of the negative pressure suction tube and accommodates patients of different body sizes.

[0037] In the specific example of the present application, the length of the second extension tube 23 is greater than the length of the suction tube 21. The second extension tube 23 is the tube body that enters the patient's body. The longer the second extension tube 23 is, the deeper it can enter the patient's body, which increases the applicability of the negative pressure suction tube and accommodates patients of different body shapes.

[0038] Furthermore, the length of the second extension tube 23 is greater than that of the suction tube 21 .

[0039] Furthermore, a connecting structure is provided at one end of the water injection pipe 11, away from the buffer chamber 12. This connecting structure is fixedly connected to the water injection pipe 11. The function of the connecting structure is to connect the water injection pipe 11 to an external water supply. Turning on the external water supply allows the surgical area to be flushed.

[0040] In some embodiments of the present application, a sealing structure 24 is provided at one end of the suction tube 21 away from the control tube 22; the sealing structure 24 is detachably connected to the suction tube 21. The function of the sealing structure 24 is to seal the suction tube 21 during transportation and storage of the negative pressure suction tube, thereby preventing contamination of the suction tube 21.

[0041] Furthermore, the cross-sectional area of the first extension tube 13 is smaller than the maximum cross-sectional area of the cache cavity 12 .

[0042] Specifically, the inner diameter of the second extension tube 23 is equal to the inner diameter of the control tube 22 .

[0043] Furthermore, the inner diameter of the water injection pipe 11 is smaller than the inner diameter of the suction pipe 21 .

[0044] The usage of this embodiment:

[0045] 1. Connect the suction tube 21 to the external negative pressure device;

[0046] 2. Connect the suction pipe 21 to the external water supply device;

[0047] 3. Implant the negative pressure suction tube into the patient's body until the distal ends of the flushing tube 1 and the negative pressure tube 2 reach the planned surgical area;

[0048] 4. Perform flushing or negative pressure suction on the surgical area as needed.

[0049] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," and "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of these terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0050] The embodiments described in this application are only a portion of the embodiments of the present invention, not all of them. Those skilled in the art can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making any creative efforts are within the scope of protection of the present invention.

Claims

1. A negative pressure suction tube, comprising a flushing line and a negative pressure line; characterized in that: The flushing pipeline includes a first extension tube, a buffer chamber and a water injection pipe; one side of the buffer chamber is connected to the first extension tube, and the other side is connected to the water injection pipe; the negative pressure pipeline includes a second extension tube, a control tube and a suction tube; one end of the control tube passes through the buffer chamber and is connected to the second extension tube, and the other end passes through the buffer chamber and is connected to the suction tube; a control hole is provided on the side wall of the control tube.

2. A negative pressure suction tube according to claim 1, characterized in that: A first pre-bent section is provided inside the first extension tube; a second pre-bent section is provided inside the second extension tube; and the first pre-bent section is fixedly connected to the second pre-bent section.

3. A negative pressure suction tube according to claim 1, characterized in that: The diameter of the first extension tube is smaller than or equal to the diameter of the second extension tube.

4. The negative pressure suction tube according to claim 1, characterized in that: The length of the first extension pipe is greater than that of the water injection pipe.

5. The negative pressure suction tube according to claim 1, characterized in that: The length of the second extension tube is greater than that of the suction tube.

6. The negative pressure suction tube according to claim 1, characterized in that: A connecting structure is provided at one end of the water injection pipe away from the buffer chamber; the connecting structure is fixedly connected to the water injection pipe.

7. The negative pressure suction tube according to claim 1, characterized in that: A sealing structure is provided at one end of the suction tube away from the control tube; the sealing structure is detachably connected to the suction tube.

8. A negative pressure suction tube according to any one of claims 1 to 7, characterized in that: The cross-sectional area of the first extension tube is smaller than the maximum cross-sectional area of the cache cavity.

9. A negative pressure suction tube according to any one of claims 1 to 7, characterized in that: The inner diameter of the second extension tube is equal to the inner diameter of the control tube.

10. A negative pressure suction tube according to any one of claims 1 to 7, characterized in that: The inner diameter of the water injection pipe is smaller than the inner diameter of the suction pipe.

Images