Aspirator

Abstract

The invention discloses an aspirator, and relates to the technical field of medical instruments. The aspirator comprises a base, a main aspiration tube and an auxiliary aspiration tube, a cavity allowing fluid to flow is formed in the base, a first inlet, a second inlet and an outlet which are communicated with the cavity and allow the fluid to pass through are formed in the base, and the outlet is used for being connected with a negative pressure device; the main suction tube can be connected with the first inlet and communicated with the cavity; the auxiliary suction tube and the main suction tube are arranged side by side, the auxiliary suction tube can be connected with the second inlet and communicated with the cavity, and the length of the auxiliary suction tube is smaller than that of the main suction tube. The aspirator provided by the invention can be operated by a single person and a single hand, so that the aspiration efficiency is improved, and smooth operation is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a suction device. Background Art

[0002] The suction device and the suction apparatus in neurosurgery are very important. They can suck out blood and keep the surgical field clean to maintain a good surgical view, and are the most important devices to ensure the smooth progress of the operation. However, during the surgical operation, a large amount of intracranial hemorrhage is often encountered, especially the rupture and hemorrhage of cerebral aneurysms during the clipping of cerebral aneurysms. For this situation, the currently common method is that two people need to hold a single-tube suction apparatus to quickly suck out the blood to clear the surgical field and quickly identify the bleeding point of the cerebral aneurysm. Due to the narrow surgical cavity, it is easy for the two people with multiple hands using the single-tube suction apparatus to have poor coordination, which limits the operation and results in low suction efficiency, seriously affecting the smooth progress of the operation. Summary of the Invention

[0003] The object of the present invention is to provide a suction apparatus to solve the problems existing in the above-mentioned prior art, which can be operated by one person with one hand, improve the suction efficiency, and ensure the smooth progress of the operation.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a suction apparatus, including: a base, a main suction tube and a sub-suction tube. A cavity for fluid to flow through is provided inside the base. A first inlet, a second inlet and an outlet for fluid to pass through and communicating with the cavity are provided on the base. The outlet is used to connect to a negative pressure device. The main suction tube can be connected to the first inlet and communicate with the cavity. The sub-suction tube is arranged side by side with the main suction tube. The sub-suction tube can be connected to the second inlet and communicate with the cavity. The length of the sub-suction tube is less than that of the main suction tube.

[0006] Preferably, the main suction tube is detachably connected to the first inlet, and the sub-suction tube is detachably connected to the second inlet.

[0007] Preferably, the main suction tube includes a first boss and a main suction tube body. The first boss is integrally formed with and communicates with the main suction tube body. The first boss is used for threaded connection with and communicating with the first inlet. The sub-suction tube includes a second boss and a sub-suction tube body. The second boss is integrally formed with and communicates with the sub-suction tube body. The second boss is used for threaded connection with and communicating with the second inlet.

[0008] Preferably, a first adapter and a second adapter are further included; the first adapter has a first base end and a first suction tube end, the first base end is used for being threadedly connected and communicated with the first inlet, and the first suction tube end is used for being threadedly connected and communicated with the main suction tube; the second adapter has a second base end and a second suction tube end, the second base end is used for being threadedly connected and communicated with the second inlet, and the second suction tube end is used for being threadedly connected and communicated with the auxiliary suction tube.

[0009] Preferably, an opening is further provided on the surface of the base, and the opening is communicated with the cavity.

[0010] Preferably, a valve is provided at the second inlet, and the valve has a communicating state in which the cavity is communicated with the fluid passage inside the auxiliary suction tube and a closed state in which the cavity is blocked from the fluid passage inside the auxiliary suction tube.

[0011] Preferably, the valve is a ball valve; the ball valve includes a valve head, a valve stem and a closing member; the valve head is arranged outside the base, the closing member is located inside the cavity, one end of the valve stem is fixedly connected to the valve head, the other end of the valve stem passes through the base and is fixedly connected to the closing member, and a through hole is provided in the center of the closing member; when the valve head rotates, it can drive the closing member to rotate synchronously and switch the ball valve between the communicating state and the closed state. When the ball valve is in the communicating state, the through hole communicates the cavity with the auxiliary suction tube. When the ball valve is in the closed state, the closing member blocks the cavity from the auxiliary suction tube.

[0012] Preferably, the inner diameter of the through hole is not less than the inner diameter of the auxiliary suction tube.

[0013] Preferably, a connecting pipe is further included; the connecting pipe is arranged inside the base. One end of the connecting pipe is fixedly connected and communicated with the second inlet, and the other end of the connecting pipe contacts the closing member; the inner diameter of the connecting pipe is not less than the diameter of the second inlet, and the inner diameter of the through hole is smaller than the inner diameter of the connecting pipe; the other end of the connecting pipe contacts the closing member, and the inner diameter of the through hole is smaller than the inner diameter of the connecting pipe; when the ball valve is in the communicating state, the through hole communicates the cavity with the connecting pipe; when the ball valve is in the closed state, the closing member blocks the cavity from the connecting pipe.

[0014] Preferably, the auxiliary suction tube is 3 mm to 6 mm shorter than the main suction tube.

[0015] The present invention has achieved the following technical effects compared with the prior art:

[0016] The aspirator provided by the present invention realizes layered aspiration of blood by setting a main aspiration tube and a secondary aspiration tube, with the length of the secondary aspiration tube being less than that of the main aspiration tube. The main aspiration tube aspirates the blood at the bleeding point, and the secondary aspiration tube aspirates the blood gathered around the bleeding point, enabling rapid clearing of the field of view under single-operator operation and ensuring the smooth progress of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a top view of the aspirator in some embodiments of the present invention;

[0019] Figure 2 It is a sectional view of the main aspiration tube provided with a first boss in some embodiments of the present invention;

[0020] Figure 3 It is a sectional view of the main aspiration tube threadedly connected to the first adapter in some embodiments of the present invention;

[0021] Figure 4 It is a sectional view of the secondary aspiration tube provided with a second boss in some embodiments of the present invention;

[0022] Figure 5 It is a sectional view of the secondary aspiration tube threadedly connected to the second adapter in some embodiments of the present invention.

[0023] In the figure: 1 - base; 2 - main aspiration tube; 21 - first boss; 22 - main aspiration tube body; 3 - secondary aspiration tube; 31 - second boss; 32 - secondary aspiration tube body; 41 - first adapter; 42 - second adapter; 5 - opening; 6 - ball valve; 61 - valve head; 62 - valve stem; 63 - closing member; 64 - through hole; 7 - connecting pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, rather than all, embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0025] The object of the present invention is to provide a suction device to solve the problems existing in the prior art, which can be operated by a single person with one hand, improve the suction efficiency and ensure the smooth progress of the operation.

[0026] To make the above objects, features and advantages of the present invention more obvious and understandable, the following combines the appended Figures 1 to 5 and specific embodiments to further elaborate on the present invention in detail.

[0027] The present invention provides a suction device, including: a base 1, a main suction tube 2 and a secondary suction tube 3.

[0028] Refer to Figure 1 As shown, a cavity for fluid circulation is provided inside the base 1. The base 1 is provided with a first inlet, a second inlet and an outlet for fluid to pass through, which are communicated with the cavity. The outlet is used to connect to a negative pressure device. The main suction tube 2 can be connected to the first inlet and communicated with the cavity. The secondary suction tube 3 is arranged side by side with the main suction tube 2. The secondary suction tube 3 can be connected to the second inlet and communicated with the cavity. The length of the secondary suction tube 3 is less than that of the main suction tube 2. By setting the main suction tube 2 and the secondary suction tube 3 with the length of the secondary suction tube 3 less than that of the main suction tube 2, the present invention realizes the stratified suction of blood. The main suction tube 2 sucks the blood at the bleeding point, and the secondary suction tube 3 sucks the blood gathered around the bleeding point, which can quickly clear the field of view under the condition of single-person operation and provide guarantee for the smooth progress of the operation. In some other embodiments, the base 1 has a tail end with an outer diameter of 8 mm, which can be connected to a PVC suction tube with a standard aperture to connect to the central negative pressure suction pipeline connected to the negative pressure device.

[0029] In some embodiments provided by the present invention, the main suction tube 2 is detachably connected to the first inlet, and the secondary suction tube 3 is detachably connected to the second inlet. The main suction tube 2, the secondary suction tube 3 and the base 1 of the present invention adopt a detachable connection method, which is convenient for disassembly, cleaning or replacement of the main suction tube 2 and the secondary suction tube 3.

[0030] In some embodiments provided by the present invention, refer to Figure 2 and Figure 4As shown, the main suction tube 2 includes a first boss 21 and a main suction tube body 22. The first boss 21 is integrally formed with and communicated with the main suction tube body 22. The first boss 21 is used for threaded connection and communication with the first inlet. The secondary suction tube 3 includes a second boss 31 and a secondary suction tube body 32. The second boss 31 is integrally formed with and communicated with the secondary suction tube body 32. The second boss 31 is used for threaded connection and communication with the second inlet. The first boss 21 and the second boss 31 are provided at the connection ends of the main suction tube 2 and the secondary suction tube 3. The main suction tube 2 and the secondary suction tube 3 can be of different models. The first boss 21 and the second boss 31 of different models of the main suction tube 2 and the secondary suction tube 3 are respectively provided with the same diameter, and the main suction tube body 22 with different inner diameters and the secondary suction tube body 32 with different inner diameters. When replacement is needed, only the main suction tube 2 and the secondary suction tube 3 need to be unscrewed to replace the main suction tube 2 and the secondary suction tube 3 of different models, making the main suction tube 2 and the secondary suction tube 3 convenient to disassemble, which is convenient for replacement during or after the operation and is convenient for adapting to different surgical situations.

[0031] In other embodiments provided by the present invention, referring to Figure 3 and Figure 5 As shown, it further includes a first adapter 41 and a second adapter 42. The first adapter 41 has a first base end and a first suction tube end. The first base end is used for threaded connection and communication with the first inlet, and the first suction tube end is used for threaded connection and communication with the main suction tube 2. The second adapter 42 has a second base end and a second suction tube end. The second base end is used for threaded connection and communication with the second inlet, and the second suction tube end is used for threaded connection and communication with the secondary suction tube 3. The main suction tube 2 and the secondary suction tube 3 are connected to the base 1 through the first adapter 41 and the second adapter 42. The main suction tube 2 and the secondary suction tube 3 are straight tubes with threads at one end, which is more convenient for processing and reduces the manufacturing and replacement costs of the main suction tube 2 and the secondary suction tube 3. The first adapter 41 and the second adapter 42 can also be provided with different models to match different models of the main suction tube 2 and the secondary suction tube 3. The different models are specifically reflected in the different diameters of the threaded holes at the first suction tube end and the second suction tube end, as well as the different inner and outer diameters of the main suction tube 2 and the secondary suction tube 3. When replacement is needed according to the surgical situation, the first adapter 41 together with the main suction tube 2 or the second adapter 42 together with the secondary suction tube 3 can be unscrewed for replacement, which is convenient for adapting to different surgical situations. When the main suction tube 2 or the secondary suction tube 3 is damaged, only the main suction tube 2 or the secondary suction tube 3 needs to be replaced, and there is no need to replace the first adapter 41 or the second adapter 42, which can also reduce the maintenance cost of the suction device itself.

[0032] In some embodiments provided by the present invention, an opening 5 is further provided on the surface of the base 1, and the opening 5 communicates with the cavity. An optional way is to provide an opening 5 on one side surface of the base 1. The doctor can adjust the suction force by covering the opening 5 with the thumb. During the operation, only by moving the thumb can the suction force be adjusted. The doctor does not need to be distracted for other adjustments and can concentrate on the position where the operation is being performed. In addition, the structure of the opening 5 is simple and easy to process. Refer to Figure 1 As shown, in the embodiment provided by the present invention, the shape of the opening 5 is teardrop-shaped. The shape of the opening 5 can also be rectangular, triangular or other shapes that can achieve adjusting the suction force by covering the opening 5 with the thumb.

[0033] In some embodiments provided by the present invention, a valve is provided at the second inlet. The valve has a communicating state in which the cavity is communicated with the fluid passage inside the auxiliary suction tube 3 and a closed state in which the cavity is cut off from the fluid passage inside the auxiliary suction tube 3. In the case of less bleeding, the valve can be closed to make the auxiliary suction tube 3 lose its suction function, preventing other tissues from being sucked through the auxiliary suction tube 3 during the operation and causing secondary harm to the patient. In some other embodiments, an indicator can be provided on the base 1 to indicate the communicating or closed position of the valve.

[0034] In some embodiments provided by the present invention, the valve is a ball valve 6. The ball valve 6 includes a valve head 61, a valve stem 62 and a closing member 63. The valve head 61 is arranged outside the base 1, the closing member 63 is located inside the cavity, one end of the valve stem 62 is fixedly connected to the valve head 61, the other end of the valve stem 62 passes through the base 1 and is fixedly connected to the closing member 63. A through hole 64 is provided in the center of the closing member 63. When the valve head 61 rotates, it can drive the closing member 63 to rotate synchronously and switch the ball valve 6 between the communicating state and the closed state. When the ball valve 6 is in the communicating state, the through hole 64 communicates the cavity with the auxiliary suction tube 3. When the ball valve 6 is in the closed state, the through hole 64 rotates to a position where it is not communicated with the inside of the auxiliary suction tube 3, and the second inlet is blocked by the side wall of the closing member 63 to cut off the cavity from the auxiliary suction tube 3. The ball valve 6 is selected for use, and the overall structure is simple and easy to process. The valve head 61 of the ball valve 6 is arranged outside the base 1, which is easy to operate. The doctor can conveniently close the ball valve 6 by rotating the valve head 61 during the operation to make the auxiliary suction tube 3 lose its suction function. The operation is simple and can also ensure the smooth progress of the operation. In some other embodiments, a limiting member is further fixedly connected to the valve stem 62, and the limiting member abuts against the inner wall of the base 1. A part of the outer wall of the valve head 61 abuts against the outer wall of the base 1. Under the combined action of the limiting member and the valve head 61, the overall longitudinal displacement of the ball valve 6 can be limited. In some other embodiments, the valve can also be a butterfly valve or a cock valve.

[0035] In some embodiments provided by the present invention, the inner diameter of the through hole 64 is not less than the inner diameter of the secondary suction tube 3. This can prevent the suction force provided by the secondary suction tube 3 from being restricted by the inner diameter of the through hole 64. Specifically, when different models of the secondary suction tube 3 are provided, the inner diameter of the through hole 64 is not less than the maximum inner diameter size of the secondary suction tube 3.

[0036] In some embodiments provided by the present invention, it further includes a connecting pipe 7. The connecting pipe 7 is arranged in the base 1. One end of the connecting pipe 7 is fixedly connected and communicated with the second inlet. The other end of the connecting pipe 7 contacts the opening and closing member 63. The inner diameter of the connecting pipe 7 is not less than the diameter of the second inlet. The inner diameter of the through hole 64 is smaller than the inner diameter of the connecting pipe 7. When the ball valve 6 is in the communicating state, the through hole 64 communicates the cavity with the connecting pipe 7; when the ball valve 6 is in the closed state, the through hole 64 rotates to a position where it is not communicated with the inside of the connecting pipe 7, and the connecting pipe 7 is blocked by the side wall of the opening and closing member 63, so that the opening and closing member 63 cuts off the cavity from the connecting pipe 7. The opening and closing member 63 and the second inlet are connected by the connecting pipe 7, making the function of the opening and closing member 63 more obvious in terms of connection and closing, preventing the situation that the sealing effect is poor when the opening and closing member 63 directly contacts the second inlet, and the situation that the secondary suction tube 3 still has a suction effect when the ball valve 6 is closed, thus avoiding secondary harm to the patient. Moreover, by adding the connecting pipe 7, the overall processing difficulty of the base 1 can be reduced.

[0037] In some embodiments provided by the present invention, the secondary suction tube 3 is 3 mm to 6 mm shorter than the main suction tube 2, preferably 3 mm. By setting the secondary suction tube 3 to be 3 mm to 6 mm shorter than the main suction tube 2, it is possible to prevent the tube head of the secondary suction tube 3 from occupying the position of the tube head of the main suction tube 2, resulting in excessive central blood suction and insufficient outer ring suction, which affects the progress of the operation.

[0038] In the present invention, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, there will be changes in the specific implementation manner and application scope according to the idea of the present invention. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An aspirator, characterized in that: Comprising: A base, inside which there is a cavity for fluid to flow through. On the base, there are provided a first inlet, a second inlet, and an outlet for fluid to pass through and communicating with the cavity. The outlet is used to connect to a negative pressure device; A main suction tube, which can be connected to the first inlet and communicate with the cavity; And A secondary suction tube, arranged side by side with the main suction tube. The secondary suction tube can be connected to the second inlet and communicate with the cavity, and the length of the secondary suction tube is less than that of the main suction tube.

2. The aspirator according to claim 1, characterized in that, The main suction tube is detachably connected to the first inlet, and the secondary suction tube is detachably connected to the second inlet.

3. The aspirator according to claim 2, wherein The main suction tube includes a first boss and a main suction tube body. The first boss is integrally formed and communicated with the main suction tube body, and the first boss is used for threaded connection and communication with the first inlet; The secondary suction tube includes a second boss and a secondary suction tube body. The second boss is integrally formed and communicated with the secondary suction tube body, and the second boss is used for threaded connection and communication with the second inlet.

4. The aspirator according to claim 2, wherein It further includes a first adapter and a second adapter; the first adapter has a first base end and a first suction tube end. The first base end is used for threaded connection and communication with the first inlet, and the first suction tube end is used for threaded connection and communication with the main suction tube; The second adapter has a second base end and a second suction tube end. The second base end is used for threaded connection and communication with the second inlet, and the second suction tube end is used for threaded connection and communication with the secondary suction tube.

5. The aspirator according to claim 1, characterized in that, An opening is also provided on the surface of the base, and the opening communicates with the cavity.

6. The aspirator according to any one of claims 1 to 5, characterized in that, A valve is provided at the second inlet. The valve has a communicating state in which the fluid passage inside the cavity is communicated with the secondary suction tube and a closed state in which the fluid passage inside the cavity is blocked from the secondary suction tube.

7. The aspirator according to claim 6, characterized in that, The valve is a ball valve; The ball valve includes a valve head, a valve stem, and a closing member; The valve head is arranged outside the base, the closing member is located inside the cavity, one end of the valve stem is fixedly connected to the valve head, the other end of the valve stem passes through the base and is fixedly connected to the closing member, and a through hole is provided at the center of the closing member; When the valve head rotates, it can drive the closing member to rotate synchronously and switch the ball valve between the communicating state and the closed state. When the ball valve is in the communicating state, the through hole communicates the cavity with the secondary suction tube. When the ball valve is in the closed state, the closing member blocks the cavity from the secondary suction tube.

8. The aspirator according to claim 7, wherein The inner diameter of the through hole is not less than the inner diameter of the secondary suction tube.

9. The aspirator according to claim 8, characterized in that, It further includes a connecting pipe, which is arranged inside the base. One end of the connecting pipe is fixedly connected and communicated with the second inlet, and the other end of the connecting pipe contacts the closing member; The inner diameter of the connecting pipe is not less than the diameter of the second inlet, and the inner diameter of the through hole is smaller than the inner diameter of the connecting pipe; When the ball valve is in the communicating state, the through hole communicates the cavity with the connecting pipe; When the ball valve is in the closed state, the closing member blocks the cavity from the connecting pipe.

10. The aspirator according to claim 1, characterized in that, The secondary suction tube is 3 mm to 6 mm shorter than the primary suction tube.

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