Operation aspirator

Abstract

The utility model discloses an operation aspirator which comprises an aspiration tube and is characterized in that a supply channel, a negative pressure aspiration channel and a circulation pipeline located at the front end of the aspiration tube are arranged in the aspiration tube, and the two ends of the circulation pipeline are communicated with the supply channel and the negative pressure aspiration channel respectively. A plurality of through holes communicated with the circulating pipeline are formed in the outer side wall of the front end of the suction tube. The utility model provides an operation aspirator. The aspiration efficiency of an aspiration hole located in the intestinal tract of a patient is high under the condition that the size of a wound on the intestinal wall of the patient in the operation process is not changed.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical instruments, and specifically relates to a surgical aspirator. Background Art

[0002] During the operation of intestinal obstruction, an aspirator is usually required to suck out the excrement that causes obstruction in the patient's intestine. However, during the use of the existing aspirator, the excrement often blocks the suction port on the aspirator, resulting in poor suction effect or inability to suck. Analyzing the reason for the failure of the suction function of the existing aspirator: Since the wound on the intestinal wall of the patient that allows the aspirator to pass through is small, the overall diameter of the aspirator is small, the flow rate of the suction holes of the aspirator extending into the intestine is small, and the excrement in the intestine of patients with intestinal obstruction generally contains particles or coarse fibers, etc. These excrements are extremely likely to cause blockage of the suction holes, resulting in a decrease in the suction flow rate of the aspirator, and even complete failure, unable to meet the surgical requirements. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related art to some extent: to provide a surgical aspirator with high suction efficiency of the suction holes located in the patient's intestine without changing the size of the wound on the patient's intestinal wall during the operation.

[0004] To this end, an object of the utility model is to propose a surgical aspirator, which includes a suction tube, and is characterized in that: a supply channel, a negative pressure suction channel are arranged in the suction tube, and a circulation pipeline located at the front end of the suction tube, both ends of the circulation pipeline are respectively communicated with the supply channel and the negative pressure suction channel, and a plurality of through holes communicated with the circulation pipeline are arranged on the outer side wall of the front end of the suction tube.

[0005] The above technical solution has the following advantages or beneficial effects: First, there are both a supply channel for supplying gas or liquid and a negative pressure suction channel for suction in the suction tube, and the supply channel and the negative pressure suction channel are mutually communicated through the circulation pipeline at the front end of the suction tube. Thus, during the operation of intestinal obstruction, the surgeon can, according to the actual surgical needs, separately suck the excrement in the intestine into the negative pressure suction channel through the through holes through the negative pressure suction channel, or separately flush the blockage on the through holes and the position in the patient's intestine that needs to be flushed by injecting gas or liquid into the intestine through the supply channel, or make the supply channel and the negative pressure suction channel work simultaneously, flushing the through holes while generating negative pressure suction, so that the blockage flushed from the through holes can be promptly sucked away by the negative pressure suction channel. Finally, during the whole operation process, the through holes on the aspirator can be well maintained smoothly, so that the whole aspirator can stably and effectively maintain its operation, avoiding the situation that the suction flow rate continuously decreases until complete failure due to the blockage of the through holes on the aspirator.

[0006] According to an example of the present utility model, the front end of the suction tube has at least two movable parts. The movable parts have a deployed state in which they deviate from each other radially and a retracted state in which they approach each other. Part or all of the circulation pipeline is located within the movable parts. The two movable parts can freely switch between the deployed state and the retracted state, so that when the suction tube passes through the wound on the intestinal wall of the patient, the two movable parts approach each other to the retracted state, thereby reducing the radial dimension and achieving the purpose of smoothly passing through the wound and entering the patient's intestine. After entering the patient's intestine, the two movable parts can be switched to the deployed state, thereby increasing the surface area of the movable parts, and thus increasing the total area of the through holes on the two movable parts, achieving the purpose of providing the total suction flow rate. On the other hand, as the number of through holes increases, the influence of a few blocked through holes on the overall suction flow rate is also smaller.

[0007] According to an example of the present utility model, there are at least two movable parts, and the supply channel and the negative pressure suction channel are respectively communicated with the circulation pipelines within their respective corresponding movable parts.

[0008] According to an example of the present utility model, there are four movable parts.

[0009] According to an example of the present utility model, the movable part is an elastic connecting pipe. The rear end of the connecting pipe is communicated with the supply channel or the negative pressure suction channel within the suction tube. The front ends of the connecting pipes are communicated with each other to form a circulation pipeline. A pulling rope for pulling the front end of the connecting pipe is provided within the suction tube, and the pulling rope extends through the pulling rope channel within the suction tube to the rear end of the suction tube and is connected to the control handle at the rear end of the suction tube.

[0010] According to an example of the present utility model, the front end of the suction tube has a head end. The front ends of each movable part are all communicated with the inner cavity of the head end. The front end of the pulling rope is fixed to the head end, and the rear end of the pulling rope is connected to the control handle at the rear end of the suction tube through the pulling rope channel.

[0011] According to an example of the present utility model, a number of through holes are arranged on the outer side wall of the connecting pipe.

[0012] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0013] Figure 1 is a schematic structural view of each movable part of the surgical suction device of the present utility model in the retracted state.

[0014] Figure 2 is a schematic structural view of each movable part of the surgical suction device of the present utility model in the deployed state.

[0015] Figure 3 is Figure 2 a side view schematic diagram in the direction of "A" in

[0016] Figure 4 is Figure 3 a sectional view schematic diagram in the direction of "B - B" in

[0017] Figure 5 is another structural schematic diagram of the movable part in the surgical suction device of the present utility model.

[0018] Wherein, 1, suction tube; 2, supply channel; 3, negative pressure suction channel; 4, circulation pipeline; 5, through hole; 6, connecting tube; 7, pull rope; 8, end; 9, control handle; 10, movable tube; 11, pull rope. Specific embodiments

[0019] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0020] The surgical suction device according to the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0021] During the operation, the surgical suction device uses the negative pressure suction provided by an external negative pressure generator to extract various liquids or solid - liquid mixtures that need to be evacuated from the patient's body during the operation, so as to make the surgical field of view clear. Especially for patients with intestinal obstruction, during the operation for intestinal obstruction, it is necessary to use a surgical suction device to extract the excrement in the obstructed area of the patient's intestine. The excrement includes liquids and solid particles or crude fibers generated during the patient's diet. The above - mentioned excrement is very likely to cause blockage of the suction holes at the front end of the existing suction device, resulting in a decrease in the flow rate of negative pressure suction, and even a situation where all the suction holes are completely blocked and the suction device fails.

[0022] Regarding the problem of the decrease in the suction flow rate caused by partial or complete blockage of the suction holes during the suction process of the above - mentioned surgical suction device, especially the surgical suction device used in intestinal obstruction surgery. The present utility model provides a surgical suction device, as Figures 1-4As shown in the figure, it includes a tubular suction tube 1. Inside the suction tube 1, there are a supply channel 2, a negative pressure suction channel 3, and a circulation pipeline 4 located at the front end of the suction tube 1. The above-mentioned supply channel 2 and negative pressure suction channel 3 both extend along the length direction of the suction tube 1. The front ends of the supply channel 2 and the negative pressure suction channel 3 are interconnected through the circulation pipeline 4, that is, both ends of the circulation pipeline 4 are respectively connected to the supply channel 2 and the negative pressure suction channel 3. The rear end of the supply channel 2 extends along the length direction of the suction tube 1 until it is connected to an external supply device. The supply device can be an air pump for providing clean air or a water pump for supplying physiological saline according to the actual surgical needs. There are several through holes 5 on the outer side wall of the front end of the suction tube 1 that are connected to the circulation pipeline 4. Compared with the existing suction device that can only perform negative pressure suction, the surgical suction device of this embodiment can reopen the blockage on the through hole 5 through the reverse flushing action of the supply channel 2, so that the through hole 5 is restored to be unobstructed. At the same time, the role of the supply channel in this surgical suction device is not only limited to flushing the through hole 5. In actual surgery, there will be various situations that require inflation or flushing with physiological saline. For example, in abdominal surgery, it is necessary to make the abdominal cavity bulge. At this time, it may be necessary to inflate to make the abdominal wall bulge. At this time, the supply channel in this suction device can be connected to a gas source to play a role in delivering gas. Another example is that in intestinal obstruction surgery, some excreta accumulate and agglomerate in the intestine. At this time, the supply channel can be connected to a water pump for supplying physiological saline. The resulting water flow of physiological saline can spray out from the through hole 5, which not only plays a role in unblocking the through hole but also can flush the area of intestinal obstruction in the patient's intestine, thus eliminating the need for additional medical equipment with a water flow pipeline. Of course, in this embodiment, the supply channel 2 and the negative pressure suction channel 3 can be used alone, or used simultaneously, or used alternately, and the selection of the flow rate of the supply channel 2 and the magnitude of the negative pressure suction of the negative pressure suction channel 3 during simultaneous use are all arbitrarily selected by the surgeon according to the actual surgical process. Therefore, based on the structural design of this negative pressure suction device in this embodiment, the method for controlling the use of the supply channel 2 and the negative pressure suction channel 3 in the above structure should be conventional. The data such as the flow rate and negative pressure suction in each of the above channels can be obtained through a limited number of clinical trials. Therefore, they will not be elaborated one by one in this embodiment.

[0023] In intestinal obstruction surgery, the smaller the surgical wound on the intestinal wall of the patient, the more obvious benefits there are for surgical risks, postoperative recovery, etc. Therefore, in the case of a smaller surgical wound, the radial dimension of the suction tube 1 inserted into the patient's intestine through this wound is bound to be designed to be smaller. At this time, the aperture of the through hole 5 on the wall of the suction tube 1 is limited, so it is more likely to cause blockage during the suction process. Although in the above embodiment, the through hole 5 can be made unobstructed again through the flushing of the supply channel 2, the suction efficiency is bound to be affected during the alternating process of flushing and suction. Therefore, based on the improvement of the above embodiment: as Figures 1-4As shown, the front end of the suction tube 1 has at least two movable parts. Each movable part has a deployed state in which they diverge radially from each other and a retracted state in which they approach each other. Part or all of the circulation pipeline 4 is located within the movable parts.

[0024] Preferably, there are two movable parts, and the two movable parts respectively correspond to the supply channel 2 and the negative pressure suction channel 3, that is, the supply channel 2 and the negative pressure suction channel 3 are respectively communicated with the circulation pipeline 4 within their respective corresponding movable parts. Thus, the lower end of the supply channel 2 within the first movable part is communicated with the lower end of the negative pressure suction channel 3 within the second movable part through the circulation pipeline 4.

[0025] Preferably, there are four movable parts. Among them, the supply channel 2 is correspondingly provided within two movable parts, and the negative pressure suction channel 3 is provided within the other two movable parts. The lower ends of the supply channels 2 within the two movable parts and the lower ends of the negative pressure suction channels 3 within the other two movable parts are all communicated through the circulation pipeline 4. Or, the lower end of the supply channel 2 within the first movable part is communicated with the lower end of the negative pressure suction channel 3 within the second movable part through the first circulation pipeline 4, and the lower end of the supply channel 2 within the third movable part is communicated with the lower end of the negative pressure suction channel 3 within the fourth movable part through the second circulation pipeline 4. Thus, in the case where one of the circulation pipelines 4 is blocked, the other circulation pipeline 4 can be used normally.

[0026] Based on one of the preferred examples of the above-mentioned movable parts: As Figures 1-4 shown, the movable part is an elastic connecting pipe 6. The rear end of the connecting pipe 6 is communicated with the supply channel 2 or the negative pressure suction channel 3 within the suction tube 1. The front ends of the connecting pipes 6 are communicated with each other to form the circulation pipeline 4. A pull rope 7 for pulling the front end of the connecting pipe 6 is provided within the suction tube 1. The pull rope 7 extends through the pull rope channel within the suction tube 1 to the rear end of the suction tube 1 and is connected to the control handle 9 at the rear end of the suction tube 1. As Figure 3 and Figure 4 shown, the control handle 9 can be located at the hand-held end of the surgeon. It extends along the length direction of the suction tube through the slender pull rope 7 and is connected to the front end of the connecting pipe 6. By the surgeon operating the fingers on the hand to pull the trigger, the cable 7 is pulled, so that the connecting pipe 6 is deformed under the tension to the Figure 2 deployed state shown, and when the tension on the pull rope 7 is removed, the connecting pipe 6 can be reset to the Figure 1 retracted state shown under the action of the elastic restoring force of the connecting pipe 6 itself.

[0027] Preferably, as Figure 4 shown, the front end of the suction tube 1 has a head 8. The front ends of each movable part are all communicated with the inner cavity of the head 8. The front end of the pull rope 7 is fixed to the head 8, and the rear end of the pull rope 7 is connected to the control handle 9 at the rear end of the suction tube 1 through the pull rope channel.

[0028] A plurality of through holes 5 are arranged on the side wall of the connecting pipe 6. Specifically, Figures 2-4 As shown, there are a number of through holes 5 on the opposite side walls of two adjacent connecting tubes 6 and on the outer sides of the connecting tubes 6 facing away from the pull rope. When the connecting tubes 6 are in the expanded state, the through holes 5 on the inner sides are away from the through holes 5 on the inner sides of the adjacent connecting tubes 6, so that more through holes 5 are exposed to the patient's intestines, thereby increasing the contact area and further improving the suction efficiency.

[0029] Preferably, the connecting pipe 6 is made of a metal material or a plastic material that allows bending and deformation. Specifically, the connecting pipe 6 is a thin-walled pipe made of elastic stainless steel.

[0030] Based on the second preferred example of the above activity unit: Figure 5 As shown, the movable part is a hollow movable tube 10, the upper end of the movable tube 10 is connected to the front end of the suction tube, and the connection is hinged or flexibly connected, and a plurality of movable parts are arranged around the circumference of the suction tube. The suction tube is provided with a driving mechanism for driving the other end of the movable tube 10 to move outward or gather inward along the radial direction of the suction tube. A plurality of through holes are evenly distributed on the tube wall of the movable tube 10, so that all the movable tubes 10 can be brought close to each other under the drive of the driving mechanism to reduce the size in the cross-sectional direction, so that the movable tube 10 can smoothly pass through the wound on the patient's intestinal wall with the suction tube, and when entering the patient's intestine, each movable tube 10 can move outward, thereby increasing the contact area between the tube wall of each movable tube 10 and the excreta in the intestine, which is conducive to more effective suction of excreta.

[0031] Specifically, the driving mechanism is a pull rope 11, one end of which is connected to a handle held by the surgeon along the length of the suction tube, and the pull rope 11 can be pulled by the handle, and the other end of the pull rope 11 is fixedly connected to the lower end of the movable tube 10 through the mounting hole at the front end of the suction tube, so that the lower end of the movable tube 10 can be pulled toward the position of the suction tube under the pulling of the pull rope 11. Preferably, in order to enable the movable tube 10 to move outward from the folded state to the unfolded state, if the upper end of the movable tube 10 is connected to the suction tube in a hinged manner, a torsion spring is provided on the hinge shaft to drive the lower end of the movable tube 10 to swing outward; if the upper end of the movable tube 10 is flexibly connected to the suction tube, the movable tube 10 can drive the lower end of the movable tube 10 to move outward by its own elastic reset force.

[0032] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0033] For those skilled in the art, after reading the above description, various changes and modifications will undoubtedly be obvious. Therefore, the appended claims should be regarded as covering all changes and modifications that fall within the true intent and scope of the present utility model. Any and all equivalent scopes and contents within the scope of the claims should be considered to still fall within the intent and scope of the present utility model.

Claims

1. A surgical aspirator, comprising a suction tube (1), characterized in that: The suction tube (1) comprises a supply channel (2), a negative pressure suction channel (3), and a circulation pipeline (4) located at the front end of the suction tube (1); the two ends of the circulation pipeline (4) are respectively connected to the supply channel (2) and the negative pressure suction channel (3); and the outer side wall of the front end of the suction tube (1) comprises a plurality of through holes (5) connected to the circulation pipeline (4).

2. The surgical aspirator according to claim 1, characterized in that: The front end of the suction tube (1) has at least two movable parts, the movable parts having an expanded state in which they are radially separated from each other and a retracted state in which they are radially close to each other, and part or all of the circulation pipeline (4) is located inside the movable part.

3. The surgical aspirator according to claim 2, characterized in that: There are at least two movable parts, and the supply channel (2) and the negative pressure suction channel (3) are respectively connected to the circulation pipeline (4) in the corresponding movable part.

4. The surgical aspirator according to claim 3, characterized in that: There are four movable parts.

5. The surgical aspirator according to claim 4, characterized in that: The movable part is an elastic connecting tube (6), the rear end of the connecting tube (6) is connected to the supply channel (2) or the negative pressure suction channel (3) in the suction tube (1), and the front ends of the connecting tubes (6) are connected to each other to form a circulation pipeline (4). The suction tube (1) has a pull rope (7) for pulling the front end of the connecting tube (6), and the pull rope (7) extends to the rear end of the suction tube (1) through the pull rope (7) channel in the suction tube (1) and is connected to the control handle (9) at the rear end of the suction tube (1).

6. The surgical aspirator according to claim 5, characterized in that: The front end of the suction tube (1) has a terminal (8), the front ends of the movable parts are connected to the inner cavity of the terminal (8), the front end of the pull rope (7) is fixed to the terminal (8), and the rear end of the pull rope (7) is connected to the control handle (9) at the rear end of the suction tube (1) through the pull rope channel.

7. The surgical aspirator according to claim 5, characterized in that: A plurality of through holes (5) are arranged on the outer side wall of the connecting pipe (6).

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