Negative pressure suction tube and negative pressure suction apparatus

Abstract

The invention relates to the technical field of medical instruments, in particular to a negative pressure suction tube and a negative pressure suction apparatus. The negative pressure suction tube comprises a tube body, a first filter screen and a first sliding part. The tube main body comprises a first end part and a second end part which are oppositely arranged in the length direction of the tube main body, a suction hole is formed in one side, close to the first end part, of the peripheral wall of the tube main body, and the suction hole is communicated with the interior of the tube main body; the suction hole is covered with the first filter screen, the first sliding part is slidably arranged on the outer side of the pipe body in the length direction of the pipe body and located on the side, close to the second end, of the suction hole, the first filter screen is connected with the first sliding part, and the first sliding part is used for driving the first filter screen to deform in the direction away from the suction hole. By driving the first sliding part to move towards the second end part, the first sliding part can drive the first filter screen to deform in the direction away from the suction hole, so that the first filter screen can be unfolded outside the suction hole, and fine tissues are prevented from blocking the suction hole.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to a negative pressure suction tube and a negative pressure suction device. Background Art

[0002] A vacuum aspirator is a medical device that is commonly used to suck out liquid, gas, and tissue from the surgical area during surgery. During surgery, medical staff can use a vacuum aspirator to keep the surgical area clearly visible to ensure that they can complete the surgery safely.

[0003] The negative pressure suction tube is an important part of the negative pressure suction device. It is connected to the head of the negative pressure suction device and is used to suck liquid, gas and tissue in the surgical area. During the use of the existing negative pressure suction tube, blood clots, large tissues, etc. generated in the surgical area, or surrounding organs such as the omentum and intestinal tract, are easily blocked or sucked into the holes of the negative pressure suction tube, which may affect the suction effect of the negative pressure suction device and prolong the operation time. In severe cases, the suction device may cause accidental damage, bleeding and other adverse events. Summary of the invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a negative pressure suction tube and a negative pressure suction device to solve the problem that the negative pressure suction tube is easily blocked in the prior art.

[0005] The negative pressure suction tube provided in the embodiment of the present invention comprises:

[0006] A pipe body, comprising a first end and a second end oppositely arranged in the length direction of the pipe body, a suction hole is provided on a side of a peripheral wall of the pipe body close to the first end, and the suction hole is communicated with the interior of the pipe body;

[0007] A first filter screen, the cover of which is arranged outside the suction hole;

[0008] A first sliding member is slidably arranged on the outside of the tube body in the length direction of the tube body and is located on the side of the suction hole close to the second end. The first filter is connected to the first sliding member, and the first sliding member is used to drive the first filter to deform in a direction away from the suction hole.

[0009] Optionally, the peripheral wall is provided with a first limiting portion, the first limiting portion is located on a side of the suction hole close to the second end, and the first limiting portion is used to limit the first sliding member from sliding toward the first end.

[0010] Optionally, the peripheral wall is further provided with a second limiting portion, the second limiting portion is located on a side of the first limiting portion close to the second end portion, and the second limiting portion is used to cooperate with the first limiting portion to limit the sliding path of the first sliding member.

[0011] Optionally, the first end is provided with a first opening, and the first opening is communicated with the interior of the tube body.

[0012] Optionally, the negative pressure suction tube further includes a second filter screen, which is disposed around the first end portion and protrudes out of the first end portion.

[0013] Optionally, the negative pressure suction tube also includes a second sliding member, which is slidably arranged on the outside of the tube body in the length direction of the tube body and is located on the side of the first sliding member close to the first end. The second filter is arranged on the second sliding member, and the second sliding member drives the second filter to move in a direction away from the first sliding member so that the second filter protrudes out of the first end.

[0014] Optionally, the second filter screen includes an inner filter screen and an outer filter screen that are integrally formed, the inner filter screen and the outer filter screen are both connected to the second sliding member and extend in a direction away from the first sliding member, and the connection position between the inner filter screen and the outer filter screen is located on the side away from the first sliding member; or the second filter screen is a single-layer filter screen, one end of the second filter screen is connected to the second sliding member, and the other end is connected to the first end portion.

[0015] Optionally, the peripheral wall is further provided with a third limiting portion, which is adjacent to the first end portion, and the third limiting portion is used to limit the second sliding member from sliding out of the first end portion.

[0016] Optionally, the first filter screen connects the first sliding member and the second sliding member.

[0017] The invention also discloses a negative pressure suction device, comprising the negative pressure suction tube as described above.

[0018] Compared with the prior art, the negative pressure suction tube provided by the embodiment of the present invention has the beneficial effect that: the negative pressure suction tube includes a tube body, a first filter and a first sliding member. The tube body includes a first end and a second end that are arranged oppositely in the length direction of the tube body, and a suction hole is provided on the side of the peripheral wall of the tube body close to the first end, and the suction hole is communicated with the inside of the tube body, and the liquid and fine tissue in the surgical area can enter the negative pressure suction tube through the suction hole; the first filter cover is arranged outside the suction hole, and the first sliding member is slidably arranged outside the tube body in the length direction of the tube body, and is located on the side of the suction hole close to the second end, and the first filter is connected to the first sliding member, and the first sliding member is used to drive the first filter to deform in the direction away from the suction hole. Thus, by driving the first sliding member to move toward the second end, the first sliding member can drive the first filter to deform in the direction away from the suction hole, so that the first filter can be expanded outside the suction hole, and the suction space between the suction hole and the first filter is increased to prevent the surrounding tissues such as the omentum and the intestinal tract from being sucked into the suction hole, thereby improving the suction efficiency while ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0020] Figure 1 is a three-dimensional schematic diagram of a negative pressure suction tube in one state provided by an embodiment of the present invention;

[0021] Figure 2 is a three-dimensional schematic diagram of a tube body provided by an embodiment of the present invention;

[0022] Figure 3 is another three-dimensional schematic diagram of the tube body provided by an embodiment of the present invention;

[0023] Figure 4 is a three-dimensional schematic diagram of another state of the negative pressure suction tube provided by an embodiment of the present invention;

[0024] Figure 5 It is a three-dimensional schematic diagram of another state of the negative pressure suction tube provided by an embodiment of the present invention.

[0025] The reference numerals in the figures are:

[0026] 100. Negative pressure suction tube;

[0027] 1. Tube body; 11. First end; 111. First opening; 12. Second end; 121. Second opening; 13. Suction hole; 14. Third limiter; 2. First sliding member; 3. Second sliding member; 4. First filter screen; 5. Second filter screen. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, the preferred embodiments of the present invention are described in detail.

[0029] The embodiment of the present invention provides a negative pressure suction tube 100, such as Figures 1 to 5 As shown, the negative pressure suction tube 100 includes a tube body 1, a first filter screen 4 and a first sliding member 2. The tube body 1 includes a first end 11 and a second end 12 which are arranged opposite to each other in the length direction of the tube body 1. A suction hole 13 is arranged on the side of the peripheral wall of the tube body 1 close to the first end 11, and the suction hole 13 is communicated with the interior of the tube body 1; the first filter screen 4 is covered outside the suction hole 13; the first sliding member 2 is slidably arranged outside the tube body 1 in the length direction of the tube body 1, and is located on the side of the suction hole 13 close to the second end 12, the first filter screen 4 is connected to the first sliding member 2, and the first sliding member 2 is used to drive the first filter screen 4 to deform in a direction away from the suction hole 13.

[0030] Specifically, the negative pressure suction tube 100 can suck blood or other liquids and fine tissues in the surgical area into the negative pressure suction tube 100 through the suction hole 13, ensuring the cleanliness of the surgical area and a clear field of vision, thereby improving the safety and success rate of the surgery. It can be understood that the second end 12 of the negative pressure suction tube 100 is connected to the negative pressure suction device, and the second end 12 is provided with a second port 121, which connects the negative pressure suction tube 100 and the negative pressure suction device, and the negative pressure suction device forms a negative pressure in the negative pressure suction tube 100, so that the suction hole 13 can suck the liquid and fine tissues in the surgical area.

[0031] In addition, the outer cover of the suction hole 13 is provided with a first filter screen 4, and the first sliding member 2 is slidably arranged on the outside of the tube body 1 in the length direction of the tube body 1, and is located on the side of the suction hole 13 close to the second end 12, and the first filter screen 4 is connected to the first sliding member 2. Therefore, by driving the first sliding member 2 to move toward the second end 12, the first sliding member 2 can drive the first filter screen 4 to deform in the direction away from the suction hole 13, so that the first filter screen 4 can be expanded outside the suction hole 13, increasing the suction space between the suction hole 13 and the first filter screen 4, so as to prevent the surrounding tissues such as the omentum and the intestinal tube from being sucked into the first port 111 and the suction hole 13. When the first filter screen 4 is expanded outside the suction hole 13, a larger suction space can be formed between the first filter screen 4 and the suction hole 13, and even if part of the tissue or the omentum, the intestinal tube, etc. are attached to the first filter screen 4, it can still be ensured that the suction hole 13 has sufficient suction efficiency, so that the medical staff does not need to frequently clean the minced meat on the first filter screen 4 during the suction process.

[0032] It is worth mentioning that, in order to improve the suction speed of the negative pressure suction tube 100, a plurality of suction holes 13 are provided, and the plurality of suction holes 13 are arrayed in the circumferential direction of the tube body and in the axial direction of the tube body. Thus, a plurality of suction points can be formed on the circumferential wall of the tube body 1, so that the negative pressure suction tube 100 has a more efficient suction efficiency.

[0033] Further, as a specific implementation in some embodiments of the present invention, Figures 1 to 5 As shown, the peripheral wall is provided with a first limiting portion (not shown), the first limiting portion is located on the side of the suction hole 13 close to the second end 12, and the first limiting portion is used to limit the first sliding member 2 from sliding toward the first end 11. Therefore, when the first sliding member 2 slides toward the first end 11, the first limiting portion can ensure that the first sliding member 2 always slides on the side of the suction hole 13 close to the second end 12, and prevents the first sliding member 2 from sliding to the position of the suction hole 13 and covering the suction hole 13, thereby ensuring that the first filter screen 4 can still completely cover the suction hole 13 after deformation.

[0034] Specifically, the first limiting portion can be configured as a limiting mode in which a slot and a latch are matched. The slot is provided on the peripheral wall, and when the negative pressure suction tube 100 is assembled, the latch is inserted into the slot to form the first limiting portion, so as to prevent the first limiting portion from affecting the assembly of the second sliding member 3.

[0035] Further, as a specific implementation in some embodiments of the present invention, Figures 1 to 5 As shown, the peripheral wall is further provided with a second limiting portion (not shown), which is located on the side of the first limiting portion close to the second end 12 , and is used to cooperate with the first limiting portion to limit the sliding path of the first sliding member 2 .

[0036] Specifically, Figure 1 and Figure 4 As shown, the second limiter and the first limiter can cooperate to limit the sliding path of the first slider 2, thereby controlling the sliding distance of the first slider 2. When the negative pressure suction tube 100 is used, the first slider 2 is controlled to slide toward the first end 11 to the first limiter, so that the maximum suction space is formed between the first filter 4 and the suction hole 13, thereby ensuring the suction efficiency of the suction hole 13. When the negative pressure suction tube 100 is used, the first slider 2 is controlled to slide toward the second end 12 to the second limiter, so that the first filter 4 fits against the surrounding wall, so as to facilitate the storage of the negative pressure suction tube 100.

[0037] Specifically, the second limiting portion can be configured as a limiting mode in which a slot and a latch are matched. The slot is provided on the peripheral wall, and when the negative pressure suction tube 100 is assembled, the latch is inserted into the slot to form the second limiting portion, so as to prevent the second limiting portion from affecting the assembly of the second sliding member 3.

[0038] As a specific implementation in some embodiments of the present invention, Figure 3 As shown, the first end 11 is provided with a first opening 111, which communicates with the interior of the tube body 1. The first opening 111 can cooperate with the suction hole 13 to absorb liquid and fine tissues in the surgical area, thereby accelerating the speed at which the negative pressure suction tube 100 absorbs liquid and fine tissues.

[0039] Further, as a specific implementation in some embodiments of the present invention, Figure 1 , Figure 4 and Figure 5 As shown, the negative pressure suction tube 100 further includes a second filter screen 5, which is disposed around the first end portion 11, and the second filter screen 5 protrudes from the first end portion 11. Specifically, the second filter screen 5 is disposed around the first end portion 11, and the second filter screen 5 protrudes from the first end portion 11, so that the second filter screen 5 can be located outside the first opening 111, thereby preventing tissues such as the omentum and the intestinal tract from being adsorbed by the first opening 111.

[0040] Further, as a specific implementation in some embodiments of the present invention, Figure 1 , Figure 4 and Figure 5 As shown, the negative pressure suction tube 100 also includes a second sliding member 3, which is slidably arranged on the outside of the tube main body 1 in the length direction of the tube main body 1 and is located on the side of the first sliding member 2 close to the first end 11. The second filter 5 is arranged on the second sliding member 3, and the second sliding member 3 drives the second filter 5 to move in a direction away from the first sliding member 2 so that the second filter 5 protrudes from the first end 11.

[0041] Specifically, the second sliding member 3 is slidably arranged on the outside of the tube body 1 in the length direction of the tube body 1, so that when the second sliding member 3 is driven to move toward the first end 11, the second sliding member 3 can drive the second filter 5 to move in the direction away from the first sliding member 2, so that the second filter 5 can protrude from the first end 11 to prevent the first opening 111 from adsorbing tissues such as the omentum and the intestinal tract, thereby avoiding the first opening 111 from sucking in normal human tissue and causing damage.

[0042] Further, as a specific implementation in some embodiments of the present invention, Figure 1 , Figure 4 and Figure 5As shown, the second filter screen 5 includes an inner filter screen (not shown) and an outer filter screen (not shown) which are integrally formed. The inner filter screen and the outer filter screen are both connected to the second sliding member 3 and extend in a direction away from the first sliding member 2. The connection position of the inner filter screen and the outer filter screen is located on a side away from the first sliding member 2. Compared with the second filter screen 5 being set as a single-layer screen, the inner filter screen and the outer filter screen are integrally formed so that the connection position thereof can form a smooth end, thereby preventing the second filter screen 5 from piercing human tissue when it contacts human tissue.

[0043] Specifically, the second filter 5 has a first connection end and a second connection end which are relatively arranged in the length direction of the tube body 1. During the assembly process, the second connection end of the second filter 5 can be folded to the first connection end, and the first connection end and the second connection end are both connected to the second sliding member 3, so that the second filter 5 can form an inner filter and an outer filter, and the connection position between the inner filter and the outer filter forms a smooth end.

[0044] It is worth mentioning that, in another embodiment, the second filter screen 5 is a single-layer filter screen, and one end of the second filter screen 5 is connected to the second sliding member 3, and the other end of the second filter screen 5 is connected to the first end portion 11. Specifically, the second filter screen 5 adopts a single-layer structure to reduce the thickness of the second filter screen 5, so that when the negative pressure suction tube needs to be used in conjunction with a laparoscope, the negative pressure suction tube can be smoothly inserted into the puncture hole of the laparoscope.

[0045] Further, as a specific implementation in some embodiments of the present invention, Figures 2 to 5 As shown, the peripheral wall is further provided with a third limiting portion 14 , which is adjacent to the first end portion 11 , and is used to limit the second sliding member 3 from sliding out of the first end portion 11 .

[0046] Specifically, the third limiting portion 14 is a stop edge protruding from the first end portion 11 , and when the second sliding member 3 slides in a direction away from the first sliding member 2 , the third limiting portion can limit the second sliding member 3 to prevent the second sliding member 3 from sliding out of the first end portion 11 .

[0047] It is worth mentioning that the first sliding member 2 and the second sliding member 3 can be driven manually or by a motor. It is understandable that when the first sliding member 2 and the second sliding member 3 are set to be driven by a motor, the movement paths of the first sliding member 2 and the second sliding member 3 can be directly controlled by setting the motor.

[0048] Further, as a specific implementation in some embodiments of the present invention, Figure 1 , Figure 4 and Figure 5 As shown, the first filter screen 4 connects the first sliding member 2 and the second sliding member 3 .

[0049] Specifically, the first filter 4 connects the first sliding member 2 and the second sliding member 3, whereby the first sliding member 2 and the second sliding member 3 can be linked, and only one power source is needed to drive the first sliding member 2, the first filter 4, the second sliding member 3 and the second filter 5 to slide accordingly, thereby improving the convenience of operation.

[0050] The present invention also discloses a negative pressure suction device, which includes the negative pressure suction tube 100 as described above. The beneficial effects of the negative pressure suction device using the negative pressure suction tube 100 have been described above when describing the negative pressure suction tube 100, and will not be repeated in this embodiment.

[0051] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the protection scope of the claims attached to the present invention.

Claims

1. A negative pressure suction tube, characterized in that: include: A pipe body, comprising a first end and a second end oppositely arranged in the length direction of the pipe body, a suction hole is provided on a side of a peripheral wall of the pipe body close to the first end, and the suction hole is communicated with the interior of the pipe body; A first filter screen, the cover of which is arranged outside the suction hole; A first sliding member is slidably arranged on the outside of the tube body in the length direction of the tube body and is located on the side of the suction hole close to the second end. The first filter is connected to the first sliding member, and the first sliding member is used to drive the first filter to deform in a direction away from the suction hole.

2. The negative pressure suction tube according to claim 1, characterized in that: The peripheral wall is provided with a first limiting portion, the first limiting portion is located at a side of the suction hole close to the second end, and the first limiting portion is used to limit the first sliding member from sliding toward the first end.

3. The negative pressure suction tube according to claim 2, characterized in that: The peripheral wall is further provided with a second limiting portion, which is located on a side of the first limiting portion close to the second end portion, and is used to cooperate with the first limiting portion to limit the sliding path of the first sliding member.

4. The negative pressure suction tube according to claim 1, characterized in that: The first end portion is provided with a first opening, and the first opening communicates with the interior of the pipe body.

5. The negative pressure suction tube according to claim 4, characterized in that: The negative pressure suction tube further includes a second filter screen, which is arranged around the first end portion and protrudes out of the first end portion.

6. The negative pressure suction tube according to claim 5, characterized in that: The negative pressure suction tube also includes a second sliding member, which is slidably arranged on the outside of the tube body in the length direction of the tube body and is located on the side of the first sliding member close to the first end. The second filter is arranged on the second sliding member, and the second sliding member drives the second filter to move in a direction away from the first sliding member so that the second filter protrudes out of the first end.

7. The negative pressure suction tube according to claim 6, characterized in that: The second filter screen comprises an inner filter screen and an outer filter screen which are integrally formed, the inner filter screen and the outer filter screen are both connected to the second sliding member and extend in a direction away from the first sliding member, and the connection position between the inner filter screen and the outer filter screen is located on a side away from the first sliding member; or The second filter screen is a single-layer filter screen, one end of the second filter screen is connected to the second sliding member, and the other end of the second filter screen is connected to the first end portion.

8. The negative pressure suction tube according to claim 6 or 7, characterized in that: The peripheral wall is further provided with a third limiting portion, which is adjacent to the first end portion, and the third limiting portion is used to limit the second sliding member from sliding out of the first end portion.

9. The negative pressure suction tube according to claim 7, characterized in that: The first filter screen connects the first sliding member and the second sliding member.

10. A negative pressure aspirator, characterized in that: It comprises the negative pressure suction tube as described in any one of claims 1 to 9.

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