CN109331259B

CN109331259B - Telescopic multifunctional aspirator in operation

Info

Publication number: CN109331259B
Application number: CN201811404250.6A
Authority: CN
Inventors: 邓国英; 李春霖; 王�琦; 张永兴; 方丹
Original assignee: Shanghai First Peoples Hospital
Current assignee: Shanghai First Peoples Hospital
Priority date: 2018-11-23
Filing date: 2018-11-23
Publication date: 2023-11-21
Anticipated expiration: 2038-11-23
Also published as: CN109331259A

Abstract

The application relates to the technical field of medical appliances, and particularly discloses a telescopic multifunctional aspirator in an operation. The aspirator comprises an aspiration tube and a handle, which are detachably connected through threads; the telescopic adjusting mechanism is arranged on the suction tube, the multistage telescopic mechanism is arranged at the tail end of the suction tube, and the telescopic mechanisms are mutually nested and matched to adjust the head end size of the suction tube. The multifunctional aspirator is provided with the telescopic device, can stably stretch and retract through rotation, realizes extension and thinning, shortens and thickens, can precisely and stably control the size of the head end of the aspirator under the use condition of a matched endoscope, realizes real-time adjustment of the size of the head end of the aspirator in operation, and has simple and convenient operation and stronger practicability. The surface of the annular area near the suction hole of the head end of the suction tube is roughened, and a layer of shark skin structure is arranged in the roughened area, so that the friction of the surface near the suction hole on soft tissues is increased and the blunt cutting function is realized when the suction device is used for blunt separation.

Description

Telescopic multifunctional aspirator in operation

Technical Field

The application relates to the technical field of medical appliances, in particular to a telescopic multifunctional aspirator in operation.

Background

The aspirator is a medical instrument commonly used in surgical operation, is commonly applied to minimally invasive surgical operation, adult surgical operation and pediatric surgical operation, and can be used for sucking bleeding, exudates, pus and contents and flushing fluid in the viscera of the cavity in the surgical field, so that the surgical field is clear, and the pollution opportunity is reduced. The suction device has a very simple working principle, and the suction head is manufactured in a negative pressure state, so that the atmospheric pressure can squeeze substances outside the suction head to the suction head, thereby completing the suction effect. The aspirator disclosed in the prior art has the following defects: (1) In the endoscopic technique, limited by the lumen, the aspirator is often used as a separation device simultaneously for blunt separation of soft tissues; because the size of the tissue gap to be separated is different, separation tools of different diameters are required; however, the diameter of the head end of the existing aspirator is fixed, and the real-time adjustment of the size of the head end of the aspirator in operation cannot be realized. (2) the thickness of the aspirator cannot be adjusted in steps. (3) The soft tissue can not be subjected to blunt cutting, the blunt separation operation of the soft tissue is difficult, and the separation effect is poor.

Patent CN201620848534.4 discloses a neurosurgery micro aspirator, comprising a hand-held end and an aspiration end, wherein the hand-held end comprises a threaded interface, an anti-slip part and a negative pressure regulating handle; the suction end comprises a connecting pipe, an arc-shaped bent pipe and a suction pipe which are connected in sequence; the surface of the negative pressure adjusting handle is provided with a negative pressure adjusting hole. The aspirator is simple and convenient to use, saves time and labor, and reduces the operation difficulty of medical staff. Patent CN201520172234.4 discloses an adjustable aspirator, which consists of an aspiration tube, an inner core, a clasp, a screw cap, a handle and a conical joint; the suction tube comprises a suction tube body and a threaded tube; the suction tube body comprises suction tube bodies with different lengths, thicknesses and radians; the outer end surface of the threaded pipe is provided with external threads; the rear end of the suction tube body is provided with a suction hole; the clamping ring is fixed on one circumference of the inner core, and the end face of the inner core protrudes out of the end face of the clamping ring; the inner core is provided with a nut; the inner wall of the nut is provided with an internal thread; the conical joint, the handle, the inner core and the inner channel of the suction tube are communicated. The aspirator can be applied in different operations. However, in the prior art, the telescopic multifunctional aspirator in the operation has not been reported at present.

Disclosure of Invention

A first object of the present application is to provide a telescopic intraoperative multifunctional aspirator, which addresses the deficiencies in the prior art.

In order to achieve the first object, the application adopts the following technical scheme:

the telescopic multifunctional aspirator in the operation comprises an aspiration tube (1) and a handle (2), wherein the head end of the aspiration tube (1) is an aspiration hole, and the tail end of the aspiration tube (1) is a threaded tube (4); the head end of the handle (2) is a connecting piece (5), the tail end of the handle (2) is a conical joint (3), and the connecting piece (5) is detachably connected with the threaded pipe (4) through threads; the telescopic adjusting mechanism (6) is arranged at the position, close to the threaded pipe (4), of the suction pipe (1), the telescopic adjusting mechanism (6) comprises a first clamping ring (7) and a second clamping ring (8) which are fixed on the outer surface of the suction pipe (1), an adjusting ring (9) is arranged between the first clamping ring (7) and the second clamping ring (8), and the adjusting ring (9) is sleeved on the surface of the suction pipe (1) and can rotate freely; the suction tube comprises a suction tube body, and is characterized in that a square opening (10) is formed in the surface of the suction tube (1) corresponding to an adjusting ring (9), a movable chuck (11) is arranged on the square opening (10), the movable chuck (11) comprises a clamping ring (12) and a clamp (13), the clamp (13) is fixed on the inner surface of the clamping ring (12), the clamping ring (12) is sleeved on the outer surface of the suction tube (1) corresponding to the square opening (10), the clamp (13) is inserted into the suction tube (1) from the square opening (10), the tail end of the clamp (13) is positioned in the tube cavity of the suction tube (1), an external thread is arranged on the outer surface of the clamping ring (12), an internal thread is arranged on the inner surface of the adjusting ring (9), the internal thread is matched with the external thread, and the movable chuck (11) can be controlled to slide up and down along the square opening (10) by rotating the adjusting ring (9). The tail end of the suction tube (1) is provided with a primary telescopic mechanism (14) and a secondary telescopic mechanism (15), the primary telescopic mechanism (14) comprises a first tube body (16), the head end of the first tube body (16) is provided with a first suction hole (17), the side surface of the first tube body (16) adjacent to the first suction hole (17) is provided with a plurality of side holes (18), and the tail end of the first tube body (16) is provided with a first flange (19); the secondary telescopic mechanism (15) comprises a second pipe body (20), the head end of the second pipe body (20) is a second suction hole, a plurality of side holes (18) are formed in the side face of the second pipe body (20) close to the second suction hole, and a second flange (21) is arranged at the tail end of the second pipe body (20); the inner surface of the second pipe body (20) is provided with a second clamping groove (22), and the first flange (19) can be embedded into the second clamping groove (22) and can slide up and down along the second clamping groove (22); a second clamping block (23) is arranged in the middle of the second clamping groove (22), the first flange (19) is positioned at the lower end of the second clamping block (23), and a second compression spring (24) is arranged between the bottom surface of the first flange (19) and the bottom surface of the second clamping groove (22); the end face of the tail end of the suction tube (1) is provided with a third suction hole, the side face of the suction tube (1) adjacent to the third suction hole is provided with a plurality of side holes (18), the inner surface of the suction tube (1) is provided with a third clamping groove (25), and the second flange (21) can be embedded into the third clamping groove (25) and can slide up and down along the third clamping groove (25); a third clamping block (26) is arranged in the middle of the third clamping groove (25), the second flange (21) is positioned at the lower end of the third clamping block (26), and a third compression spring (27) is arranged between the bottom surface of the second flange (21) and the bottom surface of the third clamping groove (25); a steel wire (28) is arranged in the lumen of the suction tube (1), one end of the steel wire (28) is fixedly connected with the bottom surface of the first flange (19), and the other end of the steel wire is fixedly connected with the tail end of the clip (13).

In the telescopic multifunctional aspirator, as a preferable mode, the square opening (10) extends along the axial direction of the tube body of the aspiration tube (1).

In the telescopic multifunctional aspirator, as a preferable mode, the outer diameter of the first tube body (16) is the same as the inner diameter of the second tube body (20).

In the telescopic multifunctional aspirator, as a preferable mode, the outer diameter of the second tube body (20) is the same as the inner diameter of the aspiration tube (1).

In the telescopic multifunctional aspirator, as a preferable mode, the length of the first tube body (16) is the same as the length of the second clamping groove (22).

In the telescopic multifunctional aspirator, as a preferable mode, the length of the second tube body (20) is the same as the length of the third clamping groove (25).

In the telescopic multifunctional aspirator, as a preferable mode, the elastic force of the third compression spring (27) is larger than that of the second compression spring (24).

In the telescopic multifunctional aspirator in the operation, as a preferable scheme, the first clamping ring (7) and the second clamping ring (8) are arranged in parallel, and the plane where the first clamping ring (7) and the second clamping ring (8) are positioned is perpendicular to the plane where the aspiration tube (1) is positioned.

In the telescopic multifunctional aspirator in the operation, as a preferable scheme, the opening (10) is a rectangular opening, and the width of the clip (13) is the same as the width of the opening (10).

In the telescopic multifunctional aspirator in the operation, as a preferable scheme, the surface of the area near the suction hole of the head end of the suction tube is roughened, a layer of shark skin structure is arranged in the roughened area, the shark skin structure is composed of a plurality of closely arranged V-shaped fold units, and a cutting flange (30) is arranged on each V-shaped fold unit (29).

The application has the advantages that:

1. in the application, the suction tube and the handle are detachably connected, in the production application, one handle device can be provided with a plurality of suction tubes with different sizes, the suction tubes with different lengths, thicknesses and bending radians can be assembled with the handle, and the suction tube with the proper model can be selected for assembly with the handle before operation according to actual conditions, so that the suction device can be adjusted in thickness step by step while the suction device is required to be used, and the application range is wider.

2. According to the application, the telescopic adjusting mechanism is arranged near the tail end of the suction tube and comprises the first clamping ring, the second clamping ring and the adjusting ring, the first clamping ring, the second clamping ring and the adjusting ring are tightly configured, the square opening of the tube body can be sealed, liquid in the suction tube is prevented from leaking out of the opening in the use process, meanwhile, the limiting effect of the first clamping ring and the second clamping ring limits the adjusting ring to rotate only and not to slide up and down, the telescopic adjusting mechanism is simpler in design and use, the telescopic adjusting mechanism can be controlled to move up and down by rotating the adjusting ring in operation, and the size of the head end of the suction tube is controlled.

3. In the application, the tail end of the suction tube is provided with a plurality of telescopic mechanisms with gradually increased sizes, the flange at the tail part of the first-stage telescopic mechanism is clamped in the clamping groove of the second-stage telescopic mechanism, the flange at the tail part of the second-stage telescopic mechanism is clamped in the clamping groove of the third-stage telescopic mechanism, and the telescopic mechanisms are mutually nested and clamped. During operation, the adjusting ring is rotated to drive the clamping ring and the clamp to move downwards along the opening, the primary telescopic mechanism is retracted into the secondary telescopic mechanism under the driving of the steel wire, and the adjusting ring is further rotated to enable the primary telescopic mechanism and the secondary telescopic mechanism to simultaneously retract into the tail end of the suction tube, so that the size of the tail end of the suction tube is gradually increased.

4. In the application, the plurality of telescopic mechanisms are mutually nested and clamped, and when the primary telescopic mechanism is retracted into the secondary telescopic mechanism, the side hole of the secondary telescopic mechanism can be communicated with the pipe cavity in the suction pipe just through the second clamping groove and the side hole in the secondary telescopic mechanism. The design makes the side hole in each telescopic machanism just can communicate with the lumen when needing, avoids the side hole jam of multistage mechanism for all there is the side hole in every telescopic machanism, conveniently attracts.

5. The multifunctional aspirator is provided with the telescopic device, can stably stretch and retract through rotation, realizes extension and thinning, shortens and thickens, can precisely and stably control the size of the head end of the aspirator under the use condition of a matched endoscope, realizes real-time adjustment of the size of the head end of the aspirator in operation, and has simple and convenient operation and stronger practicability.

6. The surface of the annular area near the suction hole of the head end of the suction tube is roughened, a layer of shark skin structure is arranged in the roughened area, the shark skin structure is composed of a plurality of closely arranged V-shaped crease units, and a cutting flange is arranged on each V-shaped crease unit. The design allows for increased friction against soft tissue and blunt dissection of the surface near the suction port when the aspirator is used for blunt dissection.

7. The suction device separation function is enhanced, and the passive separation function of soft tissues can be realized at one side, but the blood vessels are not damaged.

Drawings

FIG. 1 is a schematic view of the telescopic multifunctional aspirator in operation.

Fig. 2 is a schematic illustration of the threaded pipe after connection to a connector.

Fig. 3 is a schematic view of the internal structure of the telescopic adjustment mechanism.

Fig. 4 is a top view of the removable chuck.

FIG. 5 is a schematic view of the external structure of the tail end of the suction tube, the primary telescopic mechanism and the secondary telescopic mechanism.

FIG. 6 is a schematic diagram of the internal structure of the tail end of the suction tube, the primary telescopic mechanism and the secondary telescopic mechanism.

FIG. 7 is a schematic diagram of a shark skin structure.

Detailed Description

The application is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Further, it is understood that various changes and modifications of the present application may be made by those skilled in the art after reading the description of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.

1. Suction tube 2, handle 3, taper joint

4. Threaded pipe 5, connecting piece 6, telescopic adjusting mechanism

7. First clamping ring 8, second clamping ring 9, adjusting ring

10. Square opening 11, moving chuck 12, collar

13. Clip 14, primary telescopic mechanism 15, secondary telescopic mechanism

16. First pipe 17, first suction 18, side hole

19. First flange 20 second pipe body 21 second flange

22. Second clamping groove 23, second clamping block 24, second compression spring

25. Third clamping groove 26, third clamping block 27, third compression spring

28. Steel wire 29. V-shaped crimp unit 30. Cutting flange

Example 1 intraoperative telescopic multifunctional aspirator

Please refer to fig. 1-6. Fig. 1 is a schematic structural view of a telescopic multifunctional aspirator in the operation of the application, fig. 2 is a schematic structural view of a threaded pipe and a connecting piece after being connected, fig. 3 is a schematic structural view of an inner structure of a telescopic adjusting mechanism, fig. 4 is a top view of a movable chuck, fig. 5 is a schematic structural view of the tail end of the suction pipe, a primary telescopic mechanism and a secondary telescopic mechanism, and fig. 6 is a schematic structural view of the tail end of the suction pipe, the primary telescopic mechanism and the secondary telescopic mechanism.

The telescopic multifunctional aspirator in operation comprises an aspiration tube 1 and a handle 2, wherein the head end of the aspiration tube 1 is an aspiration hole, and the tail end of the aspiration tube 1 is a threaded tube 4; the head end of the handle 2 is a connecting piece 5, the tail end of the handle 2 is a conical joint 3, and the connecting piece 5 and the threaded pipe 4 are detachably connected through threads. In the production application, a handle device can be provided with a plurality of suction pipes with different sizes, the suction pipes with different lengths, thicknesses and bending radians and the threaded pipes with unified standards can be integrally formed at one time, then the suction pipes with different sizes and the handle are detachably assembled for use, the suction device can realize the gradual adjustment of the thickness of the suction device while the suction device is satisfied for suction use, and the application range of the suction device is wider. The position of the suction tube 1, which is close to the threaded tube 4, is provided with a telescopic adjusting mechanism 6, the telescopic adjusting mechanism 6 comprises a first clamping ring 7 and a second clamping ring 8 which are fixed on the outer surface of the suction tube 1, an adjusting ring 9 is arranged between the first clamping ring 7 and the second clamping ring 8, and the adjusting ring 9 is sleeved on the surface of the suction tube 1 and can rotate freely. The suction tube 1 surface that adjusting ring 9 corresponds is equipped with square opening 10, is equipped with on square opening 10 and removes chuck 11, remove chuck 11 and include rand 12 and checkpost 13, and checkpost 13 is fixed at the internal surface of rand 12, and rand 12 cover is at the surface of square opening 10 corresponding suction tube 1, and checkpost 13 inserts in suction tube 1 from square opening 10 to the tail end of checkpost 13 is located the lumen of suction tube 1, the surface of rand 12 is equipped with the external screw thread, the internal surface of adjusting ring 9 is equipped with the internal screw thread, this internal screw thread and external screw thread cooperation, rotates adjusting ring 9 steerable removal chuck 11 along square opening 10 and reciprocates.

The tail end of the suction tube 1 is provided with a multi-stage telescopic mechanism, a plurality of telescopic mechanisms are mutually nested and matched, and the head end size of the suction tube is adjusted. In this embodiment, a two-stage telescopic mechanism is taken as an example, and the structure of the telescopic mechanism is described in detail, so that after knowing the technical scheme, a person skilled in the art can correspondingly design the multi-stage telescopic mechanism to control the size of the head end of the suction tube more precisely and stably. The telescopic mechanism in this embodiment is specifically as follows: the tail end of the suction tube 1 is provided with a primary telescopic mechanism 14 and a secondary telescopic mechanism 15, the primary telescopic mechanism 14 comprises a first tube body 16, the head end of the first tube body 16 is provided with a first suction hole 17, a plurality of side holes 18 are formed in the side face of the first tube body 16 adjacent to the first suction hole 17, and the tail end of the first tube body 16 is provided with a first flange 19. The secondary telescopic mechanism 15 comprises a second pipe body 20, wherein the head end of the second pipe body 20 is provided with a second suction hole, a plurality of side holes 18 are formed in the side surface of the second pipe body 20 adjacent to the second suction hole, and the tail end of the second pipe body 20 is provided with a second flange 21; the inner surface of the second pipe body 20 is provided with a second clamping groove 22, and the first flange 19 can be embedded into the second clamping groove 22 and can slide up and down along the second clamping groove 22; the middle part of the second clamping groove 22 is provided with a second clamping block 23, the first flange 19 is positioned at the lower end of the second clamping block 23, and a second compression spring 24 is arranged between the bottom surface of the first flange 19 and the bottom surface of the second clamping groove 22. The end face of the tail end of the suction tube 1 is provided with a third suction hole, the side face of the suction tube 1 adjacent to the third suction hole is provided with a plurality of side holes 18, the inner surface of the suction tube 1 is provided with a third clamping groove 25, and the second flange 21 can be embedded into the third clamping groove 25 and can slide up and down along the third clamping groove 25; a third clamping block 26 is arranged in the middle of the third clamping groove 25, the second flange 21 is positioned at the lower end of the third clamping block 26, and a third compression spring 27 is arranged between the bottom surface of the second flange 21 and the bottom surface of the third clamping groove 25; a steel wire 28 is arranged in the lumen of the suction tube 1, one end of the steel wire 28 is fixedly connected with the bottom surface of the first flange 19, and the other end of the steel wire is fixedly connected with the tail end of the clip 13. As a preferred embodiment of the present embodiment, the square opening 10 extends along the axial direction of the body of the suction tube 1. As a preferred embodiment of the present embodiment, the outer diameter of the first pipe body 16 is the same as the inner diameter of the second pipe body 20. As a preferable embodiment of the present embodiment, the outer diameter of the second tube body 20 is the same as the inner diameter of the suction tube 1. As a preferred embodiment of the present embodiment, the length of the first tube 16 is the same as the length of the second clamping groove 22. As a preferable solution of this embodiment, the length of the second pipe body 20 is the same as the length of the third clamping groove 25. As a preferable solution of this embodiment, the elastic force of the third compression spring 27 is greater than the elastic force of the second compression spring 24. As a preferred technical solution of this embodiment, the first clamping ring 7 and the second clamping ring 8 are disposed parallel to each other, and the plane where the first clamping ring 7 and the second clamping ring 8 are located is perpendicular to the plane where the suction tube 1 is located. As a preferable solution of this embodiment, the opening 10 is a rectangular opening, and the width of the clip 13 is the same as the width of the opening 10. As a preferable solution of this embodiment, the distance between the first clamping ring 7 and the second clamping ring 8 is the same as the length of the adjusting ring 9, and the square opening 10 is disposed between the first clamping ring 7 and the second clamping ring 8. As a preferable technical scheme of the embodiment, a side hole 18 on the secondary telescopic mechanism is communicated with the bottom of the second clamping groove, and the second clamping block 2 is positioned at the lower end of the side hole 18. As a preferable solution of this embodiment, the side hole 18 at the tail end of the suction tube 1 is communicated with the bottom of the third clamping groove 25, and the third clamping block 26 is located at the lower end of the side hole 18.

In the application, the suction tube and the handle are detachably connected, one handle device can be provided with a plurality of suction tubes with different sizes, the suction tubes with different lengths, thicknesses and bending radians can be assembled with the handle for use, and the suction tube with the proper model can be selected for assembly with the handle for use before operation according to actual conditions, so that the suction device can be adjusted to be thicker and thinner in a gear-by-gear mode while the suction device is required for suction use, and the application range is wider. According to the application, the telescopic adjusting mechanism is arranged near the tail end of the suction tube and comprises the first clamping ring, the second clamping ring and the adjusting ring, the first clamping ring, the second clamping ring and the adjusting ring are tightly configured, the square opening of the tube body can be sealed, liquid in the suction tube is prevented from leaking out of the opening in the use process, meanwhile, the limiting effect of the first clamping ring and the second clamping ring limits the adjusting ring to rotate only and not to slide up and down, the telescopic adjusting mechanism is simpler in design and use, the telescopic adjusting mechanism can be controlled to move up and down by rotating the adjusting ring in operation, and the size of the head end of the suction tube is controlled. In the application, the tail end of the suction tube is provided with a plurality of telescopic mechanisms with gradually increased sizes, the flange at the tail part of the first-stage telescopic mechanism is clamped in the clamping groove of the second-stage telescopic mechanism, the flange at the tail part of the second-stage telescopic mechanism is clamped in the clamping groove of the third-stage telescopic mechanism, and the telescopic mechanisms are mutually nested and clamped. A secondary compression spring is arranged between the bottom of a flange at the tail part of the first-stage telescopic mechanism and the inner bottom of a clamping groove of the second-stage telescopic mechanism, a tertiary compression spring is arranged between the bottom of the flange at the tail part of the second-stage telescopic mechanism and the inner bottom of the clamping groove of the third-stage telescopic mechanism, the elasticity of the tertiary compression spring is larger than that of the secondary compression spring, a clamping block is positioned in the middle of the clamping groove, and the design enables a pipe body of each-stage telescopic mechanism to extend out by half of the length from a suction hole at the head end of the pipe body of the next-stage telescopic mechanism under the action of the elasticity of the spring (as shown in a state of fig. 6). During operation, the adjusting ring is rotated to drive the clamping ring and the clamp to move downwards along the opening, the primary telescopic mechanism is retracted into the secondary telescopic mechanism under the driving of the steel wire, and the adjusting ring is further rotated to enable the primary telescopic mechanism and the secondary telescopic mechanism to simultaneously retract into the tail end of the suction tube, so that the size of the tail end of the suction tube is gradually increased. In the application, the plurality of telescopic mechanisms are mutually nested and clamped, and when the primary telescopic mechanism is retracted into the secondary telescopic mechanism, the side hole of the secondary telescopic mechanism can be communicated with the pipe cavity in the suction pipe just through the second clamping groove and the side hole in the secondary telescopic mechanism. The design makes the side hole in each stage of telescopic mechanism be communicated with the lumen when needed, avoids the side hole blockage of the multistage mechanism, makes the side hole in each mechanism, and is convenient to attract. In the application, the elastic force of the third compression spring 27 is larger than that of the second compression spring 24, and the design ensures that when the telescopic mechanism is pulled by the steel wire traction, the primary telescopic mechanism with the smallest elastic force firstly retracts into the suction tube, and then the secondary telescopic mechanism is arranged, so that the diameter of the head end of the suction tube is ensured to be small and gradually increased.

The multifunctional aspirator is provided with the telescopic device, can stably stretch and retract through rotation, realizes extension and thinning, shortens and thickens, can precisely and stably control the size of the head end of the aspirator under the use condition of a matched endoscope, can adjust the size of the head end of the aspirator in real time in operation, and has simple and convenient operation and strong practicability.

Example 2 intraoperative telescopic multifunctional aspirator

Further improvement on the basis of embodiment 1, the structure of this embodiment is basically the same as embodiment 1, except that: the surface of the annular region near the suction hole of the head end of the suction tube is roughened, a layer of shark skin structure (figure 7) is prepared in the roughened region through a metal processing technology, the shark skin structure is composed of a plurality of closely arranged V-shaped crease units, a cutting flange 30 is arranged on each V-shaped crease unit 29, and the highest protruding height of the cutting flange 30 from the surface is 0.2-2mm. The design allows for increased friction against soft tissue and blunt dissection of the surface near the suction port when the aspirator is used for blunt dissection. Further, according to the requirements, the shark skin structure with gradually increased unit density can be arranged in the annular area according to different separation strengths, so that when in use, an operator can select the side face of the shark skin with the separation strength to carry out blunt separation operation according to the hand feeling and the separation requirements, and the separation effect is better.

The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and additions may be made to those skilled in the art without departing from the method of the present application, which modifications and additions are also to be considered as within the scope of the present application.

Claims

1. The telescopic multifunctional aspirator in the operation comprises an aspiration tube (1) and a handle (2), wherein the head end of the aspiration tube (1) is an aspiration hole, and the tail end of the aspiration tube (1) is a threaded tube (4); the head end of the handle (2) is a connecting piece (5), the tail end of the handle (2) is a conical joint (3), and the connecting piece (5) is detachably connected with the threaded pipe (4) through threads; the telescopic adjusting mechanism (6) is arranged at the position, close to the threaded pipe (4), of the suction pipe (1), the telescopic adjusting mechanism (6) comprises a first clamping ring (7) and a second clamping ring (8) which are fixed on the outer surface of the suction pipe (1), an adjusting ring (9) is arranged between the first clamping ring (7) and the second clamping ring (8), and the adjusting ring (9) is sleeved on the surface of the suction pipe (1) and can rotate freely; the suction tube comprises a suction tube body, and is characterized in that a square opening (10) is formed in the surface of the suction tube (1) corresponding to an adjusting ring (9), a movable chuck (11) is arranged on the square opening (10), the movable chuck (11) comprises a clamping ring (12) and a clamp (13), the clamp (13) is fixed on the inner surface of the clamping ring (12), the clamping ring (12) is sleeved on the outer surface of the suction tube (1) corresponding to the square opening (10), the clamp (13) is inserted into the suction tube (1) from the square opening (10), the tail end of the clamp (13) is positioned in the tube cavity of the suction tube (1), an external thread is arranged on the outer surface of the clamping ring (12), an internal thread is arranged on the inner surface of the adjusting ring (9), the internal thread is matched with the external thread, and the movable chuck (11) can be controlled to slide up and down along the square opening (10) by rotating the adjusting ring (9). The tail end of the suction tube (1) is provided with a primary telescopic mechanism (14) and a secondary telescopic mechanism (15), the primary telescopic mechanism (14) comprises a first tube body (16), the head end of the first tube body (16) is provided with a first suction hole (17), the side surface of the first tube body (16) adjacent to the first suction hole (17) is provided with a plurality of side holes (18), and the tail end of the first tube body (16) is provided with a first flange (19); the secondary telescopic mechanism (15) comprises a second pipe body (20), the head end of the second pipe body (20) is a second suction hole, a plurality of side holes (18) are formed in the side face of the second pipe body (20) close to the second suction hole, and a second flange (21) is arranged at the tail end of the second pipe body (20); the inner surface of the second pipe body (20) is provided with a second clamping groove (22), and the first flange (19) can be embedded into the second clamping groove (22) and can slide up and down along the second clamping groove (22); a second clamping block (23) is arranged in the middle of the second clamping groove (22), the first flange (19) is positioned at the lower end of the second clamping block (23), and a second compression spring (24) is arranged between the bottom surface of the first flange (19) and the bottom surface of the second clamping groove (22); the end face of the tail end of the suction tube (1) is provided with a third suction hole, the side face of the suction tube (1) adjacent to the third suction hole is provided with a plurality of side holes (18), the inner surface of the suction tube (1) is provided with a third clamping groove (25), and the second flange (21) can be embedded into the third clamping groove (25) and can slide up and down along the third clamping groove (25); a third clamping block (26) is arranged in the middle of the third clamping groove (25), the second flange (21) is positioned at the lower end of the third clamping block (26), and a third compression spring (27) is arranged between the bottom surface of the second flange (21) and the bottom surface of the third clamping groove (25); the suction tube comprises a suction tube body (1), wherein a steel wire (28) is arranged in the tube cavity of the suction tube body (1), one end of the steel wire (28) is fixedly connected with the bottom surface of a first flange (19), the other end of the steel wire is fixedly connected with the tail end of a clamp (13), the outer diameter of the first tube body (16) is identical to the inner diameter of a second tube body (20), the outer diameter of the second tube body (20) is identical to the inner diameter of the suction tube body (1), the surface of the area near a suction hole at the head end of the suction tube body is roughened, a layer of shark skin structure is arranged in the roughened area and consists of a plurality of V-shaped crease units (29) which are tightly arranged, and a cutting flange (30) is arranged on each V-shaped crease unit (29).

2. The intraoperative telescopic multifunctional aspirator according to claim 1, characterized in that the square opening (10) extends axially along the aspiration tube (1) body.

3. The intraoperative telescopic multifunctional aspirator according to claim 1, characterized in that the length of the first tube (16) is the same as the length of the second clamping groove (22).

4. The intraoperative telescopic multifunctional aspirator according to claim 1, characterized in that the length of the second tube body (20) is the same as the length of the third clamping groove (25).

5. The intraoperative telescopic multifunctional aspirator according to claim 1, characterized in that the elastic force of the third compression spring (27) is greater than the elastic force of the second compression spring (24).

6. The telescopic multifunctional aspirator according to claim 1, characterized in that the first clamping ring (7) and the second clamping ring (8) are arranged in parallel, and the plane of the first clamping ring (7) and the second clamping ring (8) is perpendicular to the plane of the aspiration tube (1).

7. The telescopic multi-functional aspirator according to claim 1, characterized in that the opening (10) is a rectangular opening, and the width of the clip (13) is the same as the width of the opening (10).