CN210582663U - Bendable suction apparatus head - Google Patents

Abstract

The utility model relates to a medical aspirator discloses a flexible aspirator head, including attracting tube head (1) and handle (2), attract tube head (1) including first spring coil (11) and adhere to in tectorial membrane layer (12) of first spring coil (11), handle (2) include that fluid attracts pipe (21) and suit at casing (22) on fluid attracts pipe (21), be equipped with connecting pipe (23) in casing (22), fluid attract pipe (21) include with connecting pipe (23) can move ground sealed connection pipe end that cup joints and the through-flow pipe end that is used for connecting the negative pressure device, be equipped with on fluid attracts pipe (21) with the drive mechanism that first spring coil (11) are connected, attract tube head (1) with casing (22) are connected. The flexible aspirator head of the utility model can be bent, and the probability of operation infection is reduced.

Description

Bendable suction apparatus head

Technical Field

The utility model relates to a medical aspirator, in particular to a bendable aspirator head.

Background

Patients may experience bleeding during surgery or oral surgery. In order to aspirate this blood to expose a better surgical field, it is generally necessary to aspirate the blood with a suction apparatus.

The suction apparatus is an important apparatus in surgical operation, and can be used for sucking smoke, flushing fluid or blood and the like, thereby providing a clear and clean operation visual field for a surgeon. The conventional aspirator head is not bendable and has certain disadvantages when treating a deep surgical area. For example, in an open operation of the abdominal cavity or the thoracic cavity, because the operation area is deep and narrow, the traditional suction head cannot be bent, so that the operation space of other operation equipment can be occupied, the operation visual field can be blocked, and the operation is difficult; in particular, no special suction device head capable of being bent at will exists in endoscopic surgery, when the suction device is used for sucking the curved cavity parts, metal suction device heads with various curvatures need to be replaced repeatedly, the metal suction device heads are easy to block, difficult to clean and easy to pollute after being used repeatedly, precious surgery time is delayed, the complex cleaning and disinfection process is achieved, and the labor intensity and the labor resource cost of medical workers are increased.

In the prior art, although some suction apparatus heads can be bent, the suction apparatus heads need to be bent by hands, so that the risk of infection is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a flexible aspirator head is provided, this flexible aspirator head not only can be crooked, has still reduced the probability of operation infection.

In order to solve the technical problem, the utility model provides a flexible aspirator head, including attracting tube head and handle, attract the tube head include first spring coil and adhere to the tectorial membrane layer of first spring coil, the handle includes that fluid attracts pipe and suit to attract the last casing of pipe, be equipped with the connecting pipe in the casing, fluid attract the pipe include with the connecting pipe can remove the sealed connecting pipe end that cup joints with be used for connecting negative pressure device's through-flow pipe end, fluid attract be equipped with on the pipe with the drive mechanism that first spring coil is connected, attract the tube head with the casing is connected.

Preferably, the traction mechanism comprises a traction part and at least one traction wire, the traction part is installed on the fluid suction tube, one end of the traction wire is connected with the traction part, and the other end of the traction wire penetrates through the connecting tube to be connected with the first spring ring.

More preferably, a self-locking switch is installed on the shell, a limiting block is arranged on the self-locking switch, and the limiting block can be clamped with a limiting groove in the fluid suction tube.

More preferably, the housing is provided with a guide hole having a limiting opening, and the traction portion is limited in the guide hole.

Preferably, the traction mechanism comprises a traction part and at least one traction wire, the traction part comprises a gear, a winding part and a rotating shaft, the gear and the winding part are respectively sleeved on the rotating shaft, the rotating shaft is rotatably installed on an installation frame on the fluid suction tube, the gear is limited in a guide hole on the shell, one end of the traction wire is connected with the first spring ring, and the other end of the traction wire is connected with the winding part.

More preferably, the guide hole is internally provided with a limiting column, and the limiting column can be inserted into a plurality of limiting holes in the gear.

More preferably, be equipped with stop gear on the casing, stop gear includes the locating part, installs self-locking switch and the elastic component on the casing, locating part one end with the casing inside wall is articulated, and this locating part still passes through the elastic component with the casing inside wall is connected, the locating part other end can with the teeth of a cogwheel joint of gear, self-locking switch is located the hinged end of locating part with in the region between the elastic component, and be equipped with the limiting block on this self-locking switch.

Furthermore, a second spring ring is sleeved on the connecting pipe.

Typically, an annular groove suitable for installing a sealing ring is arranged on the inner side wall of the fluid suction tube, and the annular groove is located at an end section where the fluid suction tube is sleeved with the connecting tube.

Specifically, one end of the connecting pipe extends to form a connecting plate connected with the inner side of the shell, and an opening suitable for the traction wire to pass through is formed in the connecting plate.

Through the technical scheme, the beneficial effects of the utility model are as follows:

the utility model discloses an among the basic technical scheme, through the first spring coil of drive mechanism control, and then can adjust the crooked degree that attracts the tube head, attract union coupling vacuum device through the fluid, can attract smog, flush fluid or blood etc. provide the sanitization for the doctor and obtain the operation field of vision.

In addition, the second spring ring is sleeved on the connecting pipe, so that the suction pipe head can be well assisted to recover the stretching state; the sealing ring is arranged on the inner side wall of the fluid suction tube, so that the fluid suction process has better sealing performance, and the fluid suction efficiency is effectively improved.

Further advantages of the invention, as well as the technical effects of preferred embodiments, will be further explained in the following detailed description.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present invention;

FIG. 2 is a schematic structural view of an embodiment of the handle of the present invention;

FIG. 3 is a schematic structural view of another embodiment of the handle of the present invention;

FIG. 4 is a schematic partial cross-sectional view of the handle of FIG. 1 taken along direction A;

fig. 5 is a schematic structural view of another embodiment of the present invention;

FIG. 6 is a schematic sectional view taken along the line B-B in FIG. 5;

fig. 7 is a schematic structural view of another embodiment of the present invention;

fig. 8 is a schematic sectional view taken along the direction C-C in fig. 7.

Description of the reference numerals

1 suction tube head

11 first spring ring 12 film coating layer

2 handle

21 fluid suction tube

211 limiting groove 212 mounting rack

213 sealing ring

22 casing

221 limiting opening 222 guide hole

223 limit column

23 connecting pipe

231 connecting plate 232 opening

3 traction part

31 gear 311 limit hole

32 winding part

33 rotating shaft

4 traction wire

5 self-locking switch 51 limiting block

61 stop 62 elastic element

7 second spring ring

Detailed Description

The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the description of the present invention, the terms "inner" and "outer" generally refer to the inside and outside of a component without specific recitation, and the terms are used merely to facilitate the description of the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, and therefore the features defined "first", "second" may explicitly or implicitly include one or more of said features.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted" and "disposed" are to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 8, the bendable aspirator tip according to the basic technical solution of the present invention includes a suction tip 1 and a handle 2, the suction tip 1 includes a first spring ring 11 and a coating layer 12, the coating layer 12 is attached to the first spring ring 11, the handle 2 includes a fluid suction tube 21 and a housing 22 sleeved on the fluid suction tube 21, a connection tube 23 is disposed in the housing 22, the fluid suction tube 21 includes two ports, one port is a connection tube end hermetically sleeved with the connection tube 23, and the connection tube 23 and the fluid suction tube 21 can move relatively, it should be noted that the sleeving of the connection tube 23 and the fluid suction tube 21 is not limited to the form that the fluid suction tube 21 is sleeved on the connection tube 23 as shown in fig. 2 to 4, it is conceivable that the connection tube 23 can also be sleeved on the fluid suction tube 21, and, the connection tube 23 is not limited to the shape shown in fig. 2 to 4, and may be configured to be capable of being sealingly fitted to the fluid suction tube 21 and relatively moving, for example, the connection tube 23 may be a tapered tube having two different port sizes, the other port of the fluid suction tube 21 may be a through-flow tube end for connecting a negative pressure device, the fluid suction tube 21 may be provided with a pulling mechanism connected to the first spring ring 11, and the suction tip 1 may be connected to the housing 22. The first spring ring 11 can be a compression spring, a bending spring and the like, and the film coating layer 12 can be made of various medical materials such as medical rubber, medical silica gel, medical plastic and the like; in the technical scheme of the utility model, the form that the fluid suction tube 21 is sleeved on the connecting tube 23 is preferred.

In the technical scheme, the traction mechanism is controlled to enable the first spring ring 11 to be compressed, so that the film coating layer 12 is driven to bend together, namely the suction pipe head 1 is controlled to bend; at the same time, the connection tube 23 and the fluid suction tube 21 move toward each other; when the extension of the suction tube head 1 needs to be controlled, the connecting tube 23 and the fluid suction tube 21 move in opposite directions, so that the suction tube head 1 can be well extended; the other port of the fluid suction tube 21 can be connected with a negative pressure device for sucking fluid such as smoke, flushing fluid or blood in the operation, and certainly, the other port can also be communicated with the flushing fluid for flushing the operation position, so that a clear and clean operation visual field is provided for a surgeon; the negative pressure device adopts the existing device capable of exhausting air, for example, equipment such as a cylinder, a motor and a piston or a vacuum pump is connected with a one-way valve, air is exhausted through a pipeline, and the air pressure in the pipeline is lower than the environmental pressure, so that fluid suction can be performed; the negative pressure devices are various and are not listed here.

Referring to fig. 1 to 4, in a preferred embodiment of the present invention, the traction mechanism includes a traction portion 3 and at least one traction wire 4, the traction portion 3 is installed on the fluid suction tube 21, one end of the traction wire 4 is connected to the traction portion 3, and the other end passes through the connection tube 23 and is connected to the first spring ring 11. The traction part 3 may be a connection part mounted on the fluid suction tube 21, such as a plate, a cylinder, a polygonal column, a tube, etc., and further, the traction part 3 may be provided with a hole, an annular groove, a protrusion, etc. for connecting the traction wire 4; it should be noted that the traction part 3 can be set to extend out of the housing 22, or set to be located in the housing 22, and both can drive the traction wire 4 through the traction part 3 to achieve the effect of controlling the bending of the suction tube head 1; the traction wire 4 can be a metal wire, a plastic wire, a rope wire and the like, and the metal wire is preferred; and the quantity of the traction wires 4 can be selected according to the requirement, and the traction process can be more stable due to the plurality of traction wires 4. Thus, the fluid suction tube 21 is controlled to move towards the direction far away from the connecting tube 23, so that the traction part 3 can be driven to move, and one side of the first spring ring 11 is compressed due to the fixed length of the traction wire 4, so that the bending of the suction tube head 1 is controlled; when the fluid suction tube 21 and the connecting tube 23 are controlled to move towards each other, the first spring ring 11 is gradually extended, so that the suction tube head 1 is restored to the extended state from the bent state; simple structure and convenient operation.

As a more preferable example, the housing 22 may be provided with a self-locking switch 5, the self-locking switch 5 is provided with a stopper 51, the end section of the fluid suction tube 21 close to the connection tube 23 is provided with a plurality of stopper grooves 211, and the stopper 51 can be engaged with each stopper groove 211; so, on above-mentioned technical scheme's basis, through setting up structures such as self-locking switch 5, stopper 51 and spacing groove 211, the doctor can press self-locking switch 5 for stopper 51 and spacing groove 211 joint or separation, thereby, through operating succinctly, just can make to attract tube head 1 to stop in the crooked state of needs, bring better use and experience.

As another more preferable example, a guide hole 222 having a stopper hole 221 is formed in the housing 22, and the traction portion 3 is restricted in the guide hole 222; that is, on the basis of the above technical scheme, in addition to the technical means of the self-locking switch 5, the limiting block 51 and the limiting groove 211, the suction tube head 1 can be kept in a required bending state by the engagement or separation of the limiting opening 221 and the traction part 3; the connection tube 23 and the fluid suction tube 21 are coupled together without restricting the relative rotation between the connection tube 23 and the fluid suction tube 21, so that the traction unit 3 can be engaged with the stopper port 221 by rotating the fluid suction tube 21 by a small amount to fix the bent state of the suction tube head 1.

In the above technical solution, the bending of the suction tube head 1 can be controlled by the relative movement of the connection tube 23 and the fluid suction tube 21, the structural design is simple, and the fluid suction tube head is suitable for production and assembly; because the suction tube head 1 is bent without being directly contacted by hands, the probability of operation infection is reduced.

Referring to fig. 5 to 8, in another preferred embodiment of the present invention, the traction mechanism includes a traction portion 3 and at least one traction wire 4, the traction portion 3 includes a gear 31, a winding portion 32 and a rotating shaft 33, the gear 31 and the winding portion 32 are respectively sleeved on the rotating shaft 33, the rotating shaft 33 is rotatably mounted on a mounting frame 212 on the fluid suction tube 21, the gear 31 is limited in a guiding hole 222 on the housing 22, and one end of the traction wire 4 is connected with the first spring coil 11 and the other end is wound on the winding portion 32. In the technical scheme, the gear 31 is rotated to lead the traction wire 4 to be continuously wound on the winding part 32 or be continuously led out from the winding part 32, so that the bending of the suction tube head 1 can be controlled; in the stretching process after the suction tube head 1 is bent, the fluid suction tube 21 and the connecting tube 23 move relatively, so that the traction wire 4 can be well assisted to be led out from the winding part 32, the first spring ring 11 is gradually restored to the stretching state under the action of self compression elastic force, for example, the traction wire 4 is made of metal wire, when the suction tube head 1 is in the bending state, the metal wire is wound on the winding part 32, and the metal wire has certain deformation due to the plasticity of the metal wire, so that in the stretching process of the suction tube head 1, the metal wire can be restored to a relatively straight and smooth state through bending deformation due to the relative movement of the fluid suction tube 21 and the connecting tube 23, and the suction tube head 1 is convenient to stretch.

As a more preferable embodiment, a limiting column 223 is disposed in the guiding hole 222, and the limiting column 223 can be inserted into a plurality of limiting holes 311 on the gear 31. Thus, the bending degree of the suction tube head 1 can be fixed by matching the limiting column 223 with the limiting hole 311; specifically, the fluid suction tube 21 is rotated a small amount relative to the connection tube 23, so that the limiting column 223 can be inserted into one limiting hole 311 to fix the bending degree of the suction tube head 1; when the position-limiting column 223 is separated from the position-limiting hole 311, the suction tube head 1 can be bent or extended.

As a more preferred embodiment, the housing 22 is provided with a limiting mechanism, the limiting mechanism includes a limiting part 61, and a self-locking switch 5 and an elastic part 62 installed on the housing 22, one end of the limiting part 61 is hinged to the inner side wall of the housing 22, and the limiting part 61 further passes through the elastic part 62 and is connected to the inner side wall of the housing 22, the other end of the limiting part 61 can be connected to the gear teeth of the gear 31 in a clamping manner, the self-locking switch 5 is located in a region between the hinged end of the limiting part 61 and the elastic part 62, and the self-locking switch 5 is provided with a limiting block 51. It should be noted that, as shown in fig. 8, the limiting member 61, the self-locking switch 5 and the elastic member 62 are sequentially arranged from left to right, when the self-locking switch 5 is pressed, the limiting member 51 pushes the limiting member 61, the elastic member 62 extends, the end of the limiting member 61 can be inserted into the gap between the teeth of the gear 31 to limit the rotation of the gear 31, and further, the bending state of the suction pipe head 1 is fixed; the technical solution is not limited to the specific form shown in fig. 8, the positions of the limiting member 61 and the elastic member 62 may be interchanged, that is, the elastic member 62, the self-locking switch 5 and the limiting member 61 are sequentially arranged from left to right, so that when the self-locking switch 5 is pressed down, the limiting member 51 pushes the limiting member 61, the elastic member 62 extends, the end of the limiting member 61 is lifted up to be separated from the gear tooth gap of the gear 31, and at this time, the rotating gear 31 can freely control the suction tube head 1 to bend and stretch; when the self-locking switch 5 is lifted, the limiting block 51 is separated from the limiting block 61, the elastic member 62 retracts, the limiting block 61 rotates around the hinge point, the end part of the limiting block 61 moves downwards to be inserted into the gear gap of the gear 31, the rotation of the gear 31 is limited, and the bending state of the suction pipe head 1 is fixed. The limiting member 61 shown in fig. 8 is an L-shaped member, and may be simply deformed so that one end of the limiting member 61 close to the gear 31 forms a hook-shaped structure, which is also applicable to the above technical solutions; the elastic member 62 may be a tension spring, a leaf spring, a strong rubber material, or the like, and is preferably a tension spring.

Therefore, the bending of the suction tube head 1 can be controlled by rotating the gear 31, the structural design is simple, and the suction tube head is suitable for production and assembly; because the suction tube head 1 is bent without being directly contacted by hands, the probability of operation infection is reduced.

As a preferred embodiment, the connecting tube 23 may be sleeved with a second spring ring 7, as shown in fig. 1 to 8. During the extension process of the suction tube head 1, the second spring ring 7 can push the fluid suction tube 21 to move away from the connecting tube 23 more quickly to assist the extension of the suction tube head 1; particularly, in the technical scheme of controlling the bending and the extension of the suction tube head 1 by utilizing the rotation of the gear 31, the second spring ring 7 and the fluid suction tube 21 can promote the metal wire to return to a relatively straight and smooth state, so that the suction tube head 1 can extend more smoothly; the secondary spring ring 7 may be a compression spring, or a resilient member having a resilient force, such as a tube made of rubber or silicone, a washer, or the like.

As shown in fig. 2 to 4, in a specific embodiment, the fluid suction tube 21 is sealingly sleeved with the connection tube 23 by providing an annular groove adapted to mount the sealing ring 213 on the inner side wall of the fluid suction tube 21, the annular groove being located at an end section where the fluid suction tube 21 is sleeved with the connection tube 23. So, can guarantee the leakproofness between fluid suction tube 21 and the connecting pipe 23 betterly, when the external negative pressure device of fluid suction tube 21, promote negative pressure device's result of use, and the cleanness of the equipment of being convenient for.

As shown in fig. 3 and 4, in a specific embodiment, one end of the connection tube 23 extends to form a connection plate 231 connected to the inner side of the housing 22, and the connection plate 231 is opened with an opening 232 through which the pull wire 4 passes. When the connection tube 23 is a tapered tube having an outer diameter gradually decreasing from the housing 22 toward the fluid suction tube 21, a through hole through which the traction wire 4 passes may be formed in a partial section of the tapered tube. The openings 232 or bores are adapted as far as possible to the pull wires 4, thereby reducing the flow of fluid into the housing 22.

Referring to fig. 1 to 8, a flexible aspirator head according to a preferred embodiment of the present invention includes a suction tube head 1 and a handle 2, wherein the suction tube head 1 includes a first spring ring 11 and a coating layer 12, the coating layer 12 is attached to the first spring ring 11, the handle 2 includes a fluid suction tube 21 and a housing 22 sleeved on the fluid suction tube 21, a connection tube 23 is disposed in the housing 22, the fluid suction tube 21 includes two ports, one port is a connection tube end hermetically sleeved with the connection tube 23, the connection tube 23 and the fluid suction tube 21 can move relatively, and the other port is a through-flow tube end for connecting a negative pressure device; the fluid suction tube 21 is provided with a traction part 3, the traction part 3 is connected with one end of a traction wire 4, the other end of the traction wire 4 passes through the opening 232 on the connecting plate 231 of the connecting tube 23 to be connected with the first spring ring 11, so that the traction part 3 drives the traction wire 4 to control the bending and stretching of the suction tube head 1; wherein, the traction part 3 has at least two structural forms; in one mode, the traction part 3 is in a single part form, such as a plate, a cylinder, a polygon prism, a pipe, and the like, further, a self-locking switch 5 is installed on the housing 22, a plurality of limiting grooves 211 are arranged on the end section of the fluid suction tube 21 close to the connecting tube 23, and the suction tube head 1 is controlled to stay in a required bending state by clamping the limiting blocks 51 on the self-locking switch 5 with the limiting grooves 211, so that the use is convenient, or a guide hole 222 with a limiting opening 221 is formed on the housing 22, so that the traction part 3 can be clamped with the limiting opening 221 to control the suction tube head 1 to stay in the required bending state; in another mode, the traction part 3 is of a combined structure, specifically, the traction part 3 includes a gear 31, a winding part 32 and a rotating shaft 33, the gear 31 and the winding part 32 are respectively sleeved on the rotating shaft 33, and are mounted on the mounting bracket 212 on the fluid suction tube 21 through the rotating shaft 33, such that one end of the traction wire 4 can be wound on the winding part 32 to control the suction tube head 1 to bend or extend through the rotating gear 31, further, a limiting post 223 is disposed in the guiding hole 222 to be inserted into a limiting hole 311 on the gear 31 through the limiting post 223 to control the suction tube head 1 to stay in a desired bending state, or, a limiting member 61, a self-locking switch 5 and an elastic member 62 are sequentially disposed on the housing 22, as shown in fig. 8, one end of the limiting member 61 is hinged to the inner side wall of the housing 22, and the other end can be engaged with the gear teeth of the gear 31 in a clearance manner, such that the, the locking or unlocking of the motion state of the gear 31 is realized, and the unlocking or locking of the motion state of the gear 31 is realized through the opposite action of the elastic part 62, that is, the suction tube head 1 is controlled to stay in a required bending state or extend through the mutual matching among the limiting part 61, the self-locking switch 5 and the elastic part 62; in particular, the second spring ring 7 is sleeved on the connecting pipe 23, and the second spring ring 7 can better assist the suction pipe joint 1 to extend; in addition, an annular groove suitable for installing the sealing ring 213 can be arranged on the inner side wall of the fluid suction tube 21, and the annular groove is located at the end section where the fluid suction tube 21 is sleeved with the connecting tube 23, so that the use effect of an external negative pressure device is improved, and the cleaning of equipment is facilitated.

According to the technical scheme, the traction part 3 is matched with the traction wire 4, so that the bending state and the stretching of the suction tube head 1 can be well controlled, the situation that the suction tube head 1 is directly contacted with a hand to bend in the prior art is avoided, and the probability of surgical infection is reduced.

Referring to fig. 1 to 8, the operation of the bendable aspirator tip of the present invention will be described.

The flexible aspirator head of the utility model is firstly sterilized, then the fluid aspirating tube 21 is externally connected with a negative pressure device, the aspirating tube head 1 is inserted into an operation area, the traction part 3 is utilized to drive the traction wire 4, the first spring ring 11 is compressed, the aspirating tube head 1 is controlled to be bent, the port of the aspirating tube head 1 is moved to an operation position needing to be aspirated or cleaned, the self-locking switch 5 is pressed, or, the utility model discloses another method is adopted, the bending state of the aspirating tube head 1 is kept, the negative pressure device is started again, the smog, flushing fluid or blood in the operation area are aspirated, and a clear operation visual field is provided for a surgeon; after all the work needing fluid suction is finished, the negative pressure device can be closed and detached firstly, the operation risk caused by misoperation can be avoided, the suction tube head 1 is removed from the operation area, then the suction tube head 1 is restored to the unfolding state by utilizing the traction part 3 and the traction wire 4, and in the period, the connecting tube 23 and the fluid suction tube 21 move in opposite directions, so that the suction tube head 1 can be well stretched; after the operation is finished, the bendable suction head is sterilized again and then stored for later use. Of course, the fluid suction tube 21 may also be connected to a flushing fluid to flush the surgical site, providing a clear surgical field for the surgeon.

In the description of the present invention, reference to the description of the terms "specific embodiment", "preferred embodiment", "a preferred embodiment", "another preferred embodiment", "a more preferred example", "another more preferred example", "a more preferred embodiment", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present disclosure, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical idea of the utility model within the scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, makes up with any suitable mode including each concrete technical feature. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims (10)

1. The utility model provides a flexible aspirator head, is including attracting tube head (1) and handle (2), attract tube head (1) including first spring coil (11) and attached to laminating layer (12) of first spring coil (11), its characterized in that, handle (2) include that fluid attracts pipe (21) and suit to be in casing (22) on fluid attracts pipe (21), be equipped with connecting pipe (23) in casing (22), fluid attract pipe (21) include with connecting pipe (23) can move ground sealed the connecting pipe end that cup joints and be used for connecting the through-flow pipe end of negative pressure device, fluid attract be equipped with on pipe (21) with the drive mechanism that first spring coil (11) are connected, attract tube head (1) with casing (22) are connected.

2. The bendable aspirator head according to claim 1, characterized in that the pulling mechanism comprises a pulling part (3) and at least one pulling wire (4), the pulling part (3) is mounted on the fluid suction tube (21), one end of the pulling wire (4) is connected with the pulling part (3) and the other end is connected with the first spring ring (11) through the connecting tube (23).

3. The bendable aspirator head according to claim 2, wherein the housing (22) is provided with a self-locking switch (5), the self-locking switch (5) is provided with a limit block (51), and the limit block (51) can be clamped with a limit groove (211) on the fluid suction tube (21).

4. The bendable aspirator head of claim 2, wherein the housing (22) is provided with a guide hole (222) having a stopper opening (221), and the traction portion (3) is confined in the guide hole (222).

5. The flexible aspirator head of claim 1, characterized in that the traction mechanism comprises a traction portion (3) and at least one traction wire (4), the traction portion (3) comprises a gear (31), a winding portion (32) and a rotating shaft (33), the gear (31) and the winding portion (32) are respectively sleeved on the rotating shaft (33), the rotating shaft (33) is rotatably mounted on a mounting rack (212) on the fluid suction tube (21), the gear (31) is limited in a guide hole (222) on the housing (22), one end of the traction wire (4) is connected with the first spring ring (11), and the other end is connected with the winding portion (32).

6. The bendable aspirator head of claim 5, wherein a limiting post (223) is provided in the guiding hole (222), the limiting post (223) can be inserted into a plurality of limiting holes (311) on the gear (31).

7. The bendable aspirator head according to claim 5, wherein the housing (22) is provided with a limiting mechanism, the limiting mechanism comprises a limiting member (61), a self-locking switch (5) and an elastic member (62) mounted on the housing (22), one end of the limiting member (61) is hinged to the inner side wall of the housing (22), the limiting member (61) is further connected to the inner side wall of the housing (22) through the elastic member (62), the other end of the limiting member (61) can be clamped to the teeth of the gear (31), the self-locking switch (5) is located in a region between the hinged end of the limiting member (61) and the elastic member (62), and the self-locking switch (5) is provided with a limiting member (51).

8. Bendable aspirator head according to any of claims 1-7 characterized in that the connecting tube (23) is sleeved with a secondary spring ring (7).

9. The bendable aspirator head of any one of claims 1 to 7, wherein the fluid suction tube (21) is provided with an annular groove on its inner side wall adapted to fit a sealing ring (213), the annular groove being located at an end section where the fluid suction tube (21) is sleeved with the connecting tube (23).

10. The bendable suction head according to any one of claims 2 to 7, wherein one end of the connection tube (23) is extended to form a connection plate (231) connected to the inner side of the housing (22), and the connection plate (231) is opened with an opening (232) for the pull wire (4) to pass through.

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