CN214859695U

CN214859695U - Negative pressure drainage device

Info

Publication number: CN214859695U
Application number: CN202120675721.8U
Authority: CN
Inventors: 刘萍; 何红
Original assignee: Fourth Affiliated Hospital of Anhui Medical University
Current assignee: Fourth Affiliated Hospital of Anhui Medical University
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-26
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a negative pressure drainage device, including the barrel, install the pintle at the barrel lower extreme, install at the terminal drainage tube of pintle, install the piston in the barrel, fix the square push rod of upwards wearing out in the barrel in the cross-section of piston upper end, fix at the terminal pull handle of push rod and set up the bleeder vent of ventilative usefulness in the barrel upper end. Be provided with the scale mark of being convenient for understand the negative pressure size in the circumference of barrel, still including the elastic chucking mechanism of the plastics that sets up between push rod and barrel upper end, chucking mechanism can utilize the elasticity of plastics to carry out the chucking after the push rod is pulled out, and can pop out so that push back the push rod when the downward atress of chucking mechanism outer end. The pulling handle is pulled, the pulling depth is determined as required, the clamping groove extrudes the inclined plane of the lower end of the clamping plate when the clamping plate is pulled out, the push rod can be continuously pulled out, after the hand is loosened, the clamping groove is clamped by the clamping plate, fixation is realized, the clamping groove is fixed relative to metal on the market, plastic is adopted here, the cost is low, and the pulling handle is suitable for disposable use.

Description

Negative pressure drainage device

Technical Field

The utility model relates to a negative pressure drainage field specifically is a negative pressure drainage ware.

Background

For the patient after the wound is debrided, clinicians all have the demand of draining blood or tissue fluid, need to carry out negative pressure suction, this just needs negative pressure drainage ware, in order to know the negative pressure size, a lot of are provided with the scale mark, in order to confirm the negative pressure size after the pull, however, current to the fixed structure of using after the pull is more loaded down with trivial details, for example utilize spring and metal etc. with high costs, also do not do benefit to production, to medical products, a lot of are disposable, if high in production cost, it is very obvious unfavorable for promoting, many instruments of clinical use are all plastics material, for example syringe, vaginal dilator etc.. Therefore, how to conveniently fix the drainage device after being pulled and pulled is a problem which needs to be solved by technical personnel in the field and is low in cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a negative pressure drainage ware to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a negative pressure drainage device comprises a cylinder body with a closed upper end, a pintle arranged at the lower end of the cylinder body, a drainage tube arranged at the tail end of the pintle, a piston arranged in the cylinder body, a push rod fixed at the upper end of the piston and having a square cross section and upwards penetrating out of the cylinder body, a pull handle fixed at the tail end of the push rod and an air vent arranged at the upper end of the cylinder body and used for ventilation.

Be provided with the scale mark of being convenient for understand the negative pressure size in the circumference of barrel, still including the elastic chucking mechanism of the plastics that sets up between push rod and barrel upper end, chucking mechanism can utilize the elasticity of plastics to carry out the chucking after the push rod is pulled out, and can pop out so that push back the push rod when the downward atress of chucking mechanism outer end.

Preferably, the clamping mechanism includes the backup pad of fixing the ascending plastics in barrel upper end, and the upper end of backup pad is fixed with and can supports the cardboard on the push rod, from the top down equidistant offer the draw-in groove that corresponds with the cardboard on the push rod, and the lower extreme of cardboard makes things convenient for the draw-in groove to upwards slide the extruded inclined plane, the cardboard extends the unblock portion that forms convenient hand to the direction of keeping away from the push rod.

Preferably, the unlocking part is in the shape of an arc with a tip tilted upwards.

Preferably, the device further comprises a guide mechanism for guiding the push rod.

Preferably, the guide mechanism comprises a guide cylinder which is sleeved on the push rod and matched with the push rod, and the guide cylinder is fixed at the upper end of the cylinder body.

Preferably, the supporting plate and the guide cylinder are made of the same plastic material as the cylinder body

Preferably, the end part of the drainage tube is provided with a cap body, and the cap body is in threaded connection with the pintle so as to prevent slipping.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the medical drainage tube is used, one end of the drainage tube is inserted into a patient, the pull handle is pulled, the pulling depth is determined according to needs, the clamping groove extrudes the inclined plane at the lower end of the clamping plate when the drainage tube is pulled out, the push rod can be ensured to be continuously pulled out, the clamping plate clamps the clamping groove after the hand is loosened, fixation is realized, the push rod is prevented from moving backwards, when the drainage tube is opened, the clamping plate can slide out of the clamping groove by directly pressing the unlocking part at the outer side, and the drainage tube is fixed relative to metal on the market, is made of plastic, is low in cost, is convenient to be formed by injection molding together with a tube body, is suitable for disposable use, and is convenient to popularize and popularize;

2. the cap body is in threaded connection with the pintle, and the anti-falling effect is good.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a bottom view of the present invention;

fig. 5 is a left side view of the present invention;

fig. 6 is a right side view of the present invention;

fig. 7 is a first axial side view of the present invention;

fig. 8 is a second axial view of the present invention.

In the figure: 1. a barrel; 11. a drainage tube; 12. a piston; 13. a push rod; 14. pulling a handle; 15. air holes are formed; 16 graduation lines; 2. a support plate; 21. clamping a plate; 22. a card slot; 23. an unlocking portion; 24. a guide cylinder; 25. a cap body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 8, the utility model provides a negative pressure drainage device, which comprises: a negative pressure drainage device comprises a cylinder body 1 with a closed upper end, a pintle arranged at the lower end of the cylinder body 1, a drainage tube 11 arranged at the tail end of the pintle, a piston 12 arranged in the cylinder body 1, a push rod 13 fixed at the upper end of the piston 12 and having a square cross section and upwards penetrating out of the cylinder body 1, a pull handle 14 fixed at the tail end of the push rod 13 and an air vent 15 arranged at the upper end of the cylinder body 1 for ventilation. The upper end of the cylinder body 1 is provided with a square guide hole corresponding to the drawing push rod 13.

The circumference of the cylinder 1 is provided with scale marks 16 for conveniently knowing the size of the negative pressure. The volume scale mark can be used, if the volume scale mark is used, the volume scale mark is normally required to be 20ml, 30ml can be adopted here, a margin is reserved, meanwhile, the volume scale mark corresponds to actual pressure, the volume scale mark is combined with the drainage tube 11, the volume scale mark can be described in a specification when in use, or the volume scale mark is marked on the barrel body 1, for example, the pressure corresponding to 20ml is used, so that medical workers can count in the operation process, in practice, the required pressure value is not many and corresponds well, the pressure value of the pulling position can be directly marked, the pressure gauge can directly measure the pressure value, and then the marking is carried out. Since the diameter of the barrel 1, the length and the diameter of the draft tube 11 all affect the value variation, specific measurements in actual production are required, and no numerical value is given here. Still including setting up the elastic chucking mechanism of plastics between push rod 13 and barrel 1 upper end, chucking mechanism can utilize the elasticity of plastics to carry out the chucking after push rod 13 pulls out, and can pop out so that push rod 13 is pushed back when the outer end of chucking mechanism atress downwards. The clamping mechanism is made of plastic, and the clamping mechanism is clamped by the elasticity of the plastic. The plastic material, the price cost is low, simultaneously, is convenient for with barrel 1 manufacturing together. Chucking mechanism is including fixing the backup pad 2 at the ascending plastics of barrel 1 upper end, and the upper end of backup pad 2 is fixed with can support cardboard 21 on push rod 13, and draw-in groove 22 that corresponds with cardboard 21 is offered to equidistant from the top down on the push rod 13, and the lower extreme of cardboard 21 is for making things convenient for draw-in groove 22 to the extruded inclined plane that upwards slides, and cardboard 21 extends the unblock portion 23 that forms the convenient hand to the direction of keeping away from push rod 13. When the push rod 13 upwards stimulates, draw-in groove 22 can extrude the inclined plane, the inner on inclined plane is tilt up, elastic deformation takes place for backup pad 2, thereby make cardboard 21 roll-off draw-in groove 22, push rod 13 can continue outside pulling, produce the negative pressure in barrel 1 through piston 12, when loosening pull handle 14, cardboard 21 is along with the extrusion downwards of draw-in groove 22, inside chucking, thereby avoid push rod 13 to move back, fixed has been realized, it is just very convenient like this, and simultaneously, low in manufacturing cost all adopts the plastics material here, be convenient for make together with barrel 1. The supporting plate 2 and the guide cylinder 24 are made of the same plastic material as the cylinder body 1, and are convenient to manufacture. The unlocking portion 23 is formed in an arc shape with its tip tilted upward. The pressure is conveniently applied outwards, and the hand is not easy to slip.

And a guide mechanism for guiding the push rod 13. The push rod 13 is ensured to move vertically and stably. The guide mechanism comprises a guide cylinder 24 which is sleeved on the push rod 13 and matched with the push rod, and the guide cylinder 24 is fixed at the upper end of the cylinder body 1. The guide cylinder 24 guides the push rod 13 vertically, avoiding skewing and rotation.

The working principle is as follows: during the use, insert the patient with the one end of drainage tube internal, then pulling handle 14, confirm the degree of depth of pulling out as required, draw-in groove 22 extrudes the inclined plane of cardboard 21 lower extreme when pulling out, guarantee that push rod 13 can continue to take out, loosen the hand back, cardboard 21 chucking draw-in groove 22, realize fixedly, avoid push rod 13 to move back, and when opening, the unblock portion 23 that directly presses the outside can make cardboard 21 roll-off draw-in groove 22, for the metal on the market is fixed, here all adopt plastics, it is with low costs, also be convenient for form with moulding plastics together with barrel 1, be fit for disposable, be convenient for popularize and promote. The cap body 25 is in threaded connection with the pintle, and the anti-falling effect is good.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A negative pressure drainage device comprises a cylinder body (1) with a closed upper end, a pintle arranged at the lower end of the cylinder body (1), a drainage tube (11) arranged at the tail end of the pintle, a piston (12) arranged in the cylinder body (1), a push rod (13) fixed at the upper end of the piston (12) and having a square cross section and penetrating out of the cylinder body (1) upwards, a pull handle (14) fixed at the tail end of the push rod (13) and a ventilation hole (15) arranged at the upper end of the cylinder body (1) for ventilation;

the method is characterized in that: be provided with scale mark (16) convenient to know the negative pressure size in the circumference of barrel (1), still including the elastic chucking mechanism of the plastics that sets up between push rod (13) and barrel (1) upper end, chucking mechanism can utilize the elasticity of plastics to carry out the chucking after push rod (13) are pulled out, and can pop out so that push rod (13) are pushed back when the downward atress in chucking mechanism outer end.

2. The negative pressure flow diverter of claim 1, wherein: chucking mechanism is including fixing backup pad (2) at barrel (1) upward plastics, and the upper end of backup pad (2) is fixed with can support cardboard (21) on push rod (13), draw-in groove (22) that correspond with cardboard (21) are seted up to equidistant from the top down on push rod (13), and the lower extreme of cardboard (21) is for making things convenient for draw-in groove (22) extruded inclined plane that upwards slides, cardboard (21) extend to the direction of keeping away from push rod (13) and form unlocking portion (23) that make things convenient for the hand.

3. The negative pressure flow diverter of claim 2, wherein: the unlocking part (23) is in the shape of an arc with the tail end tilted upwards.

4. The negative pressure flow diverter of claim 3, wherein: the device also comprises a guide mechanism for guiding the push rod (13).

5. The negative pressure flow diverter of claim 4, wherein: the guide mechanism comprises a guide cylinder (24) which is sleeved on the push rod (13) and matched with the push rod, and the guide cylinder (24) is fixed at the upper end of the cylinder body (1).

6. The negative pressure flow diverter of claim 5, wherein: the supporting plate (2) and the guide cylinder (24) are made of the same plastic material as the cylinder body (1).

7. The negative pressure flow diverter of claim 6, wherein: the end part of the drainage tube (11) is provided with a cap body (25), and the cap body (25) is in threaded connection with the pintle to prevent slipping.