CN113244464A - Medical suction tube - Google Patents

Abstract

The invention provides a medical suction tube, comprising a connector, a handle, a suction tube and a suction channel, wherein the connector, the handle and the suction tube are all hollow pipeline structures, and is characterized in that: the suction channel is All-in-one structure. With this technical solution, the suction channel is integrally formed, and the inside of the channel is smooth and seamless, thereby reducing the probability of internal blockage of the medical suction tube, prolonging the service life of the suction tube, and reducing the incidence of intraoperative bacterial infection.

Description

medical suction tube

technical field

The invention relates to a medical device, in particular to a medical suction tube with anti-blocking and anti-adhesion.

Background technique

In surgery, a suction tube is often used, and its main function is to absorb liquids such as irrigation fluid, blood, tissue fluid, or cutting debris such as bone tissue generated during the operation. At present, the non-disposable suction tubes commonly used in clinical practice usually include connectors, connecting tubes, handles, and pipettes. During assembly, the connectors and handles are fixed to both ends of the connecting tube, and the suction tube is fixed to the handle. At the other end, the connecting head, connecting pipe, handle and suction pipe are all hollow pipe structures. After the assembly is completed, the connecting head, connecting pipe, handle and pipe inside the suction pipe together form the suction channel, and the suction channel is the suction channel. The channel through which the liquid flows during the process. The suction channel formed by this structure has many connected pipelines and many seams, and each seam is easy to hold dirt and dirt. In addition, the suction tube is made of stainless steel as a whole, which is not a non-stick material, and the overall inner diameter of the suction tube is small. Therefore, it is difficult to clean the blood stains and mucus adhering to the inner wall of the suction channel and the joints of the connection parts during cleaning. In the long run, as the adhesion continues to increase, the inside of the suction tube will eventually be blocked.

Therefore, those skilled in the art are devoted to developing an anti-clogging and anti-adhesion medical suction tube.

SUMMARY OF THE INVENTION

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a medical suction tube that is easy to clean, not easy to stick, not blocked, and durable.

In order to achieve the above purpose, the present invention provides a medical suction tube, which includes a connector, a handle, a suction tube and a suction channel, and the connector, the handle and the suction tube are all hollow pipe structures, and is characterized in that: The suction channel has an integrated structure.

With this technical solution, the suction channel is integrally formed, and the inside of the channel is smooth and seamless, thereby reducing the probability of internal blockage of the medical suction tube, prolonging the service life of the suction tube, and reducing the incidence of intraoperative bacterial infection.

Preferably, the connecting head, the handle and the pipette are integrated, and the liquid suction channel is jointly formed by the pipe inside the connecting head, the handle and the pipette. The technical solution is simple in structure, the suction tube is integral as a whole, and the suction channel is integrally formed, which can effectively prevent liquid, mucus, etc. from adhering and accumulating on the inner wall of the medical suction tube and eventually blocking the tube, and the integrated structure is also easy to clean.

Preferably, it also includes an inner pipe, the inner pipe is fixedly connected to the connecting head, the handle and the pipe wall of the inner pipe of the pipette, the inner pipe is a hollow pipe structure, and the pipette is the inner pipe. Pipes inside pipes. The technical solution makes the suction tube disclosed in the prior art only need to add an inner tube to achieve the technical effect of the present invention, thereby saving medical resources and reducing medical costs. Since the inner tube is a single structure, its internal The pipe is integrally formed, and the suction channel is the inner pipe of the inner pipe, so as to realize the functions of anti-blocking and anti-adhesion.

Further, the open end of the inner tube is flush with the open end of the connector, or the open end of the inner tube protrudes from the open end of the connector and is bent outward to cover the open end of the connector. .

Preferably, the tail end of the inner pipe is flush with the tail end of the pipette, or the tail end of the inner pipe protrudes from the tail end of the pipette and is bent outward to cover the suction pipe tube end.

Further, a negative pressure adjusting hole is also included, and the negative pressure adjusting hole is opened in the side wall of the handle and the corresponding part of the pipe wall of the inner pipe.

Further, the connection mode of the inner tube to the connecting head, the handle and the tube wall of the inner pipe of the pipette is a compression port, welding, bonding, snap connection or interference fit.

Preferably, the suction pipe is divided into a connecting part and a suction part, the connecting part penetrates the connecting head and the pipeline inside the handle and is fixedly connected with the connecting head and the handle respectively, and the suction channel is the inside the pipette described above. By adopting this technical solution, the suction tube runs through the entire medical suction tube, and its internal pipeline becomes the only channel inside the suction tube, that is, the suction channel. Integrated structure; the technical solution is simple in structure, low in processing cost, and at the same time can achieve technical effects such as anti-blocking and anti-sticking.

Further, the connection mode of the connection portion with the connection head and the handle is compression opening, welding, bonding, snap connection or interference fit.

Further, the fixed connection part of the connection part, the connection head and the handle is the outer wall of the connection part and the inner wall of the inner pipe of the connection head and the handle.

Preferably, the open end of the connection part is flush with the open end of the connection head or the open end of the connection part protrudes from the open end of the connection head, and the protruding part of the open end of the connection part is bent outwards Then cover the open end of the connector.

Further, the open end of the connecting portion and the open end of the connecting head are welded and fixed.

Preferably, the pipe diameter of the liquid suction part is smaller than the pipe diameter of the connecting part.

Preferably, the inner wall of the suction channel is provided with a medical hydrophobic coating or a medical super-hydrophobic coating. The technical solution can further improve the smoothness inside the liquid suction channel, reduce the probability of the liquid adhering to the inner wall of the liquid suction channel, and enhance the technical effect of preventing clogging and anti-adhesion of the present invention.

Preferably, a negative pressure adjusting hole is also included, and the negative pressure adjusting hole is opened in the side wall of the handle and the corresponding part of the pipe wall of the connecting portion.

Preferably, the pipette is straight or curved.

The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present invention.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural perspective view of the present invention;

Fig. 3 is the exploded view of each component of the present invention;

Fig. 4 is the structure sectional view of the present invention;

5 is an enlarged cross-sectional view of a partial structure of the present invention;

Figure 6 is an exploded view of each component of the necking device;

Fig. 7 is the structural representation of the shrinking device component-shrinking core;

Fig. 8 is the structural representation of the shrinking device component-tightening nut;

Fig. 9 is the use state diagram of the necking device;

Figure 10 is a schematic structural diagram of a wrench;

Figure 11 is a schematic diagram of the structure of the expansion device;

in,

100 connectors

101 Connector open end

102 Connection head and tail

103 Hollow Pipe One

200 handles

201 Negative pressure adjustment hole

202 Hollow Pipe II

300 pipettes

301 Connector

302 Suction part

303 Connection part open end

304 Pipette end

401 Punch

401a hollow pipe three

401b Upper die external thread

402 Lower die

403 Shrink Core

403a Hollow Pipe Four

403b Rift

403c elastic block

403d Ring Groove

403e Conical Steps

404 Tightening the nut

404a female thread

404b Ring Slot

404c Conical Step Circular Groove

404d snap slot

501 Wheels

502 handle

503 Buckle

601 Three-jaw chuck

601a jaws

602 Conical expansion rod

603a screw

603b turntable

603c rocker

604 base

604a base one

604b base two

Detailed ways

The expressions such as "connector", "handle" and "pipette" referred to in the present invention are not intended to limit their definitions, but to explain the technical content of the present invention. The technical solution is the same as the present invention but expressed in different technical terms, which does not mean that the technical solution is substantially different from the present invention.

For ease of explanation, the left side of all drawings is defined as the proximal end and the right side is the distal end, and the definition is based on the distance between each component of the present invention and the operator's hand holding the medical suction tube in use.

As shown in FIG. 1 , the medical suction tube includes a connector 100 , a handle 200 and a pipette 300 . The connecting head 100 is used to connect the suction device, so the shape of the connecting head 100 is a cone with a stepped structure, which is conducive to the sealing connection with the connecting end of the suction device. The connecting head 100 is divided into an open end and a tail end, and the proximal end is The open end 101 of the connecting head, the distal end is the tail end 102 of the connecting head, the handle 200 is mainly used for holding, and its shape can be approximately cuboid, square, oblate, etc. The pipette 300 is a thin tube, and its distal end is a The tail end 304 of the liquid tube is the part that directly contacts the surgical wound. The connector 100, the handle 200 and the suction tube 300 are all hollow pipe structures; it also includes a suction channel, which is the only channel through which the liquid inside the medical suction tube flows. The channel, the liquid suction channel of the present invention has an integrated structure, that is, the inner wall of the liquid suction channel is integrally formed. The following will be described in detail by way of examples. The main difference between the examples is that the components that make up the inner wall of the suction channel are different:

Example 1

In this example, the medical suction tube may or may not include a connecting tube, and the connecting head 100, the handle 200 and the suction tube 300 are integral structures. The suction pipe 300 is forged in one piece. When the connecting pipe is not included, the suction pipe is forged in turn by the connecting head 100, the handle 200 and the suction pipe 300. One end of 200 is lengthened and connected to the tail end 102 of the connecting head; the suction channel is composed of the connecting head 100, (connecting pipe), the handle 200 and the pipeline inside the suction pipe 300, that is, the inner wall of the suction channel is composed of the connecting head 100, ( Connecting tube), handle 200 and the inner wall of the inner pipe of the suction tube 300 are composed together. Since the suction tube is forged as a whole, there are no joints between the components, so the inner wall of the suction channel is smooth and seamless.

Preferably, the inner diameters of the pipes inside the connecting head 100, (connecting pipe), handle 200 and the pipette 300 are the same size, that is, the pipes inside the connecting head 100 and the handle 200 are also circular pipes. This structure makes the suction channel as a whole as a whole. The inner wall of a round pipe is smooth without unnecessary crease, which reduces the probability of liquid adhering to the inner wall of the suction channel, and further improves the anti-blocking and anti-adhesion effect of the suction tube.

The handle 200 also includes a negative pressure adjustment hole 201, which is arranged on the side wall of the handle 200 and is a circular, drop-shaped or other shaped opening for setting the suction force by changing the pressure in the suction channel. size, so as to play a role in regulating the flow rate of suction.

The inner diameter of the inner pipe of the pipette 300 can be the same or the inner diameter of the pipe at the end 304 of the pipette 304, that is, the pipe at the distal end of the pipette 300, can be reduced. On the one hand, this structure is to improve the problem that the scope of the surgical wound is too small and is not conducive to non-operation, on the other hand. On the one hand, it also takes into account the rigidity and suction flow of the suction tube as a whole, so that the suction tube 300 is broken due to excessive force due to the small inner diameter of the suction tube 300, or the suction is not smooth due to too small inner diameter.

Embodiment 2

In this example, the medical suction tube may or may not include a connecting tube. In the case of including a connecting tube, the connecting head 100 and the handle 200 are fixedly connected to two ends of the connecting tube, respectively, and the suction tube 300 is fixedly connected to the other end of the handle 200. When the connecting pipe is not included, the connecting head and tail end 102 are lengthened and fixedly connected directly with one end of the handle 200, and one end of the handle 200 can also be lengthened and fixedly connected with the connecting head and tail end 102, and the suction pipe 300 is fixedly connected to the other side of the handle 200. One end; this embodiment also includes an inner tube, the inner tube is an integrally formed hollow tube, the outer diameter of which matches the inner diameter of the connecting head 100, (connecting tube), handle 200 and the inner pipe of the pipette 300, and is respectively fixed It is connected to the pipe wall of the connecting head 100, (connecting pipe), handle 200 and the pipe inside the pipette 300. The connection method can be a compression port, welding, bonding, snap connection or interference fit, etc. The prior art has been disclosed It is suitable for the connection between metal pipes. The inner tube runs through the entire suction tube, the inner pipe is the only channel inside the suction tube for the liquid to flow through, namely the suction channel, and the inner wall of the inner tube is the inner wall of the suction channel.

The open end of the inner tube is flush with the open end 101 of the connector, and the joints between the two are fixedly connected by welding to prevent the suctioned liquid from leaking out of the gap between the connector 100 and the inner tube; preferably, the inner tube is open The end protrudes from the open end 101 of the connector, and the protruding open end of the inner tube is bent outward to cover the open end 101 of the connector. Treatment; preferably, the open end of the inner tube and the open end 101 of the connector can be fixedly connected by welding. This structure further improves the tightness of the connection between the inner tube and the connection head 100 .

The tail end of the inner tube is flush with the tail end 304 of the pipette. Alternatively, the tail end of the inner tube can be protruded from the tail end 304 of the suction tube and then bent outward to cover the tail end 304 of the suction tube, so that the two fit together. It can be fixed by welding, bonding, etc., and the gap can be filled to prevent the suctioned liquid from entering the joint between the pipette 300 and the inner pipe.

This embodiment can make a secondary improvement to the non-integrated medical suction tube disclosed in the prior art. The inner tube with a customized size is loaded into the existing suction tube and fixed, that is, a liquid suction channel of an integrated structure is formed. Significant improvements in technical effectiveness can be achieved with minimal economic cost.

Embodiment 3

In this example, the medical suction tube does not contain a connecting tube, and the liquid suction tube 300 is extended and extended to penetrate through and connect the head 100 and the handle 200 in series. As shown in FIG. 1 to FIG. 4 , the connecting head and tail end 102 become thinner, and the tube wall becomes thinner, which is beneficial to the connection with the pipette 300. The handle 200 is approximately a cuboid, and the ends are thinner and the tube wall becomes thinner, so as to facilitate the connection with the pipette 300. Connect the pipette 300. The connecting head 100 is provided with a first hollow pipe 103, and the handle 200 is provided with a second hollow pipe 202. The inner diameter of the first hollow pipe 103 and the second hollow pipe 202 is the same. The liquid suction pipe 300 includes a connecting part 301 and a liquid suction part 302. The outer diameter of the connecting part 301 matches the inner diameter of the first hollow pipe 103 and the second hollow pipe 202. The connecting part 301 runs through the first hollow pipe 103 and the second hollow pipe 202, and It is fixedly connected with the connector 100 and the handle 200 respectively. The liquid suction pipe 300 runs through the entire suction pipe, the inner pipe thereof is the liquid suction channel, and the inner wall of the inner pipe of the liquid suction pipe 300 is the inner wall of the liquid suction channel.

The connection method between the connection portion 301 and the connection head 100 and the handle 200 may be the prior art such as compression opening, welding, bonding, clamping, screw connection, clamp connection, interference fit, ferrule connection, and compression connection. The disclosed method is suitable for the connection between metal pipes. This embodiment adopts the connection method of adding a compression port, that is, adding a compression port to the two ends of the connecting head and tail end 102 and the handle 200, so that the inner diameter is reduced to be in close contact with the pipe wall of the connecting part 301 and press tightly, so that the two Fixed connection. This connection method can adopt the shrinking equipment disclosed in the prior art specially used for pipe shrinking, and the present invention adopts the specially developed shrinking equipment. The constriction device can also be used for the connection of the inner pipe of the pipette 300 .

As shown in FIG. 6 , FIG. 7 , FIG. 8 and FIG. 9 , the shrinking device includes an upper die 401 , a lower die 402 , a shrinking core 403 and a tightening nut 404 . The upper mold 401 is a stepped circular boss structure, and a hollow pipe 3 401a is arranged inside. The hollow pipe 3 401a is used to accommodate the shrinkage core 403, so its shape is adapted to the shrinkage core 403; the top of the upper mold 401 The outer periphery of the circular boss is provided with an outer thread 401b of the upper die, which is used to connect the tightening nut 404. The shrinkable core 403 is an inverted circular truncated structure, and a hollow pipe 403a is arranged at the center of the circle, and the hollow pipe 403a is used for accommodating and clamping the medical suction tube; Several cracks 403b are radially distributed in the direction, and the cracks 403b end at the top surface of the shrinkable core 403, and the shrinkable core 403 is divided into several elastic blocks 403c to form an elastic shrinkage structure; The inner diameter of the top surface is smaller than the inner diameter of the hollow pipe three 401a, and this structure is used to clamp the medical suction tube located in the hollow pipe four 403a; the bottom surface of the shrinkable core 403 is also provided with a locking structure, and the locking structure includes along the An annular groove 403d and a truncated cone-shaped step 403e on the top of the shrink core 403 are provided in the circumferential direction of the bottom surface of the shrink core 403 . The tightening nut 404 is a hollow nut with an inner thread 404a matching the outer thread 401b of the upper die, and a half-circle annular groove 404b and a half-circle inverted circular truncated stepped annular groove are arranged on the inner wall near the top along the circumferential direction. 404c, the clamping groove 404b and the inverted circular truncated stepped annular groove 404c are adapted to the locking structure of the shrinking core 403, and the semicircular design is conducive to the assembly of the two; the top surface of the tightening nut 404 is also provided with a clamping There are several buckle grooves 404d, which can be used to drive the tightening nut 404 to rotate with a special wrench. As shown in Figure 10, the special wrench includes a tire 501, a handle 502 and a buckle 503. The inner diameter of the wheel 501 matches the outer diameter of the tightening nut 404, and the buckle 503 matches the buckle groove 404d.

When in use, put the annular groove 403d and the circular truncated step 403e of the shrinkable core 403 into the annular groove 404b of the tightening nut 404 and the circular truncated stepped annular groove 404c to make the two fixedly connected, and then the shrinkable core 403 Put into the hollow pipe 3 401a of the upper mold 401, place the medical suction tube into the hollow pipe 403a of the shrink core 403, and place the desired constricted connector end 102 or both ends of the handle 200 in the hollow pipe At the opening of the fourth 403a, then connect the tightening nut 404 with the outer thread 401b of the upper die, insert the tire 501 of the wrench into the tightening nut 404, snap the buckle 503 into the buckle groove 404d, turn the handle 502, and drive the tightening nut 404 rotates, with the deepening of the threaded connection, the tightening nut 404 drives the shrinking core 403 to move down and penetrate into the hollow pipe 3 401a in the upper die 401, because the diameter of the bottom surface of the shrinking core 403 is larger than the opening of the hollow pipe 401a Therefore, when the shrinking core 403 moves vertically downward in the hollow pipe 3 401a, the elastic block 403c of the shrinking core 403 is compressed to the center of the circle, and the inner diameter of the hollow pipe 403a becomes smaller, and at the same time is located in the hollow pipe 403a. The connecting head and tail end 102 or the two ends of the handle 200 at the opening of the fourth 403a are continuously pressed, deformed, and shrink inward until they are in close contact with the outer wall of the connecting portion 301 without any gap, so that the two are pressurized and fixed.

In addition, taking the interference fit as an example, the interference fit is based on the principle of thermal expansion and cold contraction. The pipe wall is tightly fitted with the inner walls of the connecting head 100 and the handle 200 to complete the fixed connection.

In the above two examples, the fixed connection part between the connecting part 301 and the connecting head 100 and the handle 200 is the connection method between the outer wall of the connecting part 301 and the inner wall of the inner pipe of the connecting head 100 and the handle 200 . A clamp connection can also be used, and metal clamps are used directly at the end 102 of the connection head and the two ends of the handle 200 to fasten the connection head 100 and the handle 200 on the connection part 301 .

The open end 303 of the connection part 301 is flush with the open end 101 of the connection head, and the joints between the two are fixedly connected by welding to prevent the suctioned liquid from leaking from the gap between the connection head 100 and the connection part 301 . Preferably, the open end 303 of the connecting portion protrudes from the open end 101 of the connecting head, and the protruding open end 303 of the connecting portion is bent outward and then covers the open end 101 of the connecting head. FIG. 5 shows that the open end 303 of the connecting portion is bent outward. The cross-sectional view of the structure of the open end 101 of the coating connector, the bending method can adopt the expansion equipment, flanging machine, crimping machine, vise, etc., which are suitable for metal pipes disclosed in the prior art, and the present invention adopts specially developed Similarly, the expansion device can also be used for the connection between the open end of the inner tube and the open end 101 of the connector, and the connection between the tail end of the inner tube and the tail end 304 of the pipette.

As shown in FIG. 11, the expansion device includes a clamping device, a conical expansion rod 602, a propelling device and a base 604; the clamping device is used to fix the suction tube, and the clamping device can be a three-jaw chuck, a four-jaw chuck, Six-jaw chucks and other devices have been disclosed in the prior art and are suitable for pipe fixing. In this example, a three-jaw chuck 601 is used; the conical expansion rod 602 is connected with the propulsion device, and its conical pointed end is facing the required turning point. The open end 303 of the connecting part of the side, the open end of the inner pipe or the tail end of the inner pipe; the propulsion device includes a screw 603a, a turntable 603b and a rocker 603c, the surface of the screw 603a is an external thread, and a hollow groove for accommodating the conical expansion rod 602 is arranged inside. , the inner diameter of the hollow groove matches the outer diameter of the conical expansion rod 602, and an internal thread can also be set in the hollow groove. Correspondingly, the outer pipe wall of the conical expansion rod 601 can be provided with a corresponding external thread to match the hollow groove. Threaded connection, the screw 603a is fixed on the disk surface of one side of the turntable 603b, the rocker 603c is fixed on the disk surface of the other side of the turntable 603b and is used to drive the turntable 603b to rotate; The second base 604b of the propulsion device, the base two 604b is preferably more than two, which is beneficial to better support the propulsion device, the base two 604b is provided with a threaded hole, the threaded hole matches the external thread on the surface of the screw 603a, the screw 603a Screw into the threaded hole, and rotate the rocker 603c to push the screw 603a toward the clamping device.

When in use, insert the medical suction tube into the hole groove at the center of the three-jaw chuck 601 to expose the open end 303 of the connecting part, the open end of the inner tube or the tail end of the inner tube, and drive the clamping of the three-jaw chuck 601. The claw 601a moves to the center and clamps the suction tube, and the rocker 603c is shaken. As the screw 603a rotates in the threaded hole, the conical expanding rod 602 is driven to move to the center of the three-jaw chuck 601. The tip is inserted into the open end 303 of the connecting part, the open end of the inner tube or the tail end of the inner tube, and is bent to the outside by continuously pressing the open end 303 of the connecting part, the open end of the inner tube or the tail end of the inner tube, and the Finally, it is attached to the open end 101 of the connector or the tail end 304 of the pipette.

Preferably, the open end 303 of the connecting portion and the open end 101 of the connecting head, the open end of the inner tube and the open end 101 of the connecting head, or the tail end of the inner tube and the tail end 304 of the pipette can be welded by welding This structure can enhance the sealing of the connection part, and the welding seam can be polished and smoothed after welding, which can improve the appearance.

The manufacturing method of this embodiment includes the following steps: firstly inserting the connecting portion 301 into the hollow pipe 202 inside the handle 200, fixing the position of the handle 200 on the connecting portion 301, and then compressing both ends of the handle 200 with a shrinking device After the handle 200 and the connecting part 301 are fixed, the connecting part 301 is inserted into the hollow pipe 103 inside the connecting head 100, so that the open end 303 of the connecting part is flush with the open end 101 of the connecting head or the open end 303 of the connecting part is exposed. At the open end 101 of the connector, a shrinking device is used to add a compression port to the tail end 102 of the connector, and then the flush connector open end 303 and the open end 101 of the connector are welded and fixed, or exposed to the connector. The open end 303 of the connection part of the open end 101 is flanged outwards by means of an expansion device, and the joint of the open end 303 of the connection part after flanging and the open end 101 of the connection head is welded and fixed, and finally polished.

The above three embodiments are the preferred embodiments of the present invention. It should be pointed out that as long as the liquid suction channel has an integrated structure and the inner wall of the liquid suction channel is integrally formed, no matter what component the inner wall of the liquid suction channel belongs to, it belongs to the present invention. The technical scope of the invention is claimed.

Preferably, the pipette 300 can be a straight pipe or a curved pipe, which is set according to the needs of the surgical site, so as to be suitable for more types of operations.

Preferably, the inner wall of the pipette 300 is provided with a medical hydrophobic coating or a medical super-hydrophobic coating, which is suitable for medical instruments and medical consumables in the prior art and has long-term antibacterial protection, anti-fouling, anti-corrosion, anti-rust, anti-moisture Equivalent functional medical hydrophobic coatings or medical super-hydrophobic coatings can be used in the present invention, such as polytetrafluoroethylene (PTFE), dihydrofluorescein, silicone resin, nano-hydrophobic coatings and the like. The present invention adopts parylene, and the coating material has good corrosion resistance, antibacterial, low retardation, low friction coefficient, antirust, antioxidation, solvent resistance and biocompatibility.

The present invention adopts medical stainless steel material and has good biocompatibility.

Compared with the prior art, the present invention adopts a simple structural improvement, which solves the long-standing problem in the prior art that is difficult to completely cure, and can save medical resources on the one hand by realizing the technical effects of preventing blockage and adhesion of the medical suction tube. , on the other hand reduces the incidence of bacterial infections and thus improves the patient's quality of life.

The preferred embodiments of the present invention have been described in detail above. It should be understood that many modifications and changes can be made according to the concept of the present invention by those skilled in the art without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the prior art according to the concept of the present invention shall fall within the protection scope determined by the claims.

Claims (20)

1. Medical suction pipe, including connector (100), handle (200), pipette (300) and imbibition passageway, connector (100), handle (200) and pipette (300) are cavity pipeline structure, its characterized in that: the imbibition channel is of an integrated structure.

2. The medical suction tube according to claim 1, wherein: the connector (100), the handle (200) and the pipette (300) are of an integral structure, and the pipette channel consists of the connectors (100), the handle (200) and the pipelines inside the pipette (300) together.

3. The medical suction tube according to claim 1, wherein: still include the inner tube, inner tube fixed connection in on the pipe wall of connector (100), handle (200) and pipette (300) internal pipeline, the inner tube is hollow pipeline structure, the imbibition passageway is promptly the inside pipeline of inner tube.

4. The medical suction tube of claim 3, wherein: the open end of the inner tube is flush with the open end (101) of the connector (100), or the open end of the inner tube protrudes out of the open end (101) of the connector and is wrapped on the open end (101) of the connector after being bent outwards.

5. The medical suction tube according to claim 3 or 4, wherein: the trailing end of the inner tube is flush with the trailing end (304) of the pipette (300), or the trailing end of the inner tube protrudes from the pipette trailing end (304) and is folded outwardly over the pipette trailing end (304).

6. The medical suction tube according to claim 5, wherein: the negative pressure adjusting device is characterized by further comprising a negative pressure adjusting hole (201), wherein the negative pressure adjusting hole (201) is formed in the side wall of the handle (200) and the pipe wall of the inner pipe corresponding to the side wall.

7. The medical suction tube as claimed in any one of claims 3, 4 or 6, wherein: the inner tube and the connecting head (100), the handle (200) and the tube wall of the inner pipeline of the pipette (300) are fixedly connected in a pressurizing and necking mode, a welding mode, a bonding mode, a clamping mode or an interference fit mode.

8. The medical suction tube according to claim 1, wherein: pipette (300) divide into connecting portion (301) and imbibition portion (302), connecting portion (301) run through the inside pipeline of connector (100) and handle (200) and with connector (100) and handle (200) fixed connection respectively, the imbibition passageway is promptly pipette (300) inside pipeline.

9. The medical suction tube of claim 8, wherein: the connecting part (301) is connected with the connector (100) and the handle (200) in a pressurizing and necking mode, a welding mode, a bonding mode, a clamping mode or an interference fit mode.

10. The medical suction tube of claim 9, wherein: connecting portion (301) with the fixed connection position of connector (100) and handle (200) does the outer wall of connecting portion (301) with the inner wall of connector (100) and handle (200) inner tube way.

11. The medical suction tube as claimed in any one of claims 8 to 10, wherein: the open end (303) of connecting portion (301) with open end (101) of connector (100) are flushed or connecting portion open end (303) are outstanding in connector open end (101), and the portion that connecting portion open end (303) are outstanding is cladding behind outwards buckling connector open end (101).

12. The medical suction tube of claim 11, wherein: the joint part of the connecting part opening end (303) and the joint part of the connector opening end (101) is welded and fixed.

13. The medical suction tube as claimed in any one of claims 8 to 10 or 12, wherein: the pipe diameter of the liquid suction part (302) is smaller than that of the connecting part (301).

14. The medical suction tube as claimed in any one of claims 1 to 4, 6, 8 to 10 or 12, wherein: the inner wall of the imbibition channel is provided with a medical hydrophobic coating or a medical super-hydrophobic coating.

15. The medical suction tube of claim 7, wherein: the inner wall of the imbibition channel is provided with a medical hydrophobic coating or a medical super-hydrophobic coating.

16. The medical suction tube of claim 11, wherein: the inner wall of the imbibition channel is provided with a medical hydrophobic coating or a medical super-hydrophobic coating.

17. The medical suction tube of claim 13, wherein: the inner wall of the imbibition channel is provided with a medical hydrophobic coating or a medical super-hydrophobic coating.

18. The medical suction tube as claimed in any one of claims 8 to 10, 12, 16 or 17, wherein: the negative pressure adjusting device is characterized by further comprising a negative pressure adjusting hole (201), wherein the negative pressure adjusting hole (201) is formed in the side wall of the handle (200) and the pipe wall of the connecting portion (301) corresponding to the side wall.

19. The medical suction tube as claimed in any one of claims 1 to 4, 6, 8 to 10, 12, 15 to 17, wherein: the pipette (300) is in the shape of a straight tube or a bent tube.

20. The medical suction tube of claim 18, wherein: the pipette (300) is in the shape of a straight tube or a bent tube.

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