CN206910585U - The chamber closed drainage pipe applier that visual type self-locking is fixed - Google Patents

Abstract

The utility model belongs to technical field of medical instruments, the chamber closed drainage pipe applier fixed more particularly, to a kind of visual type self-locking.Including drainage tube one end and the tube core made of hard material can be inserted in, and the interior detent mechanism on the outside of drainage tube and outer detent mechanism, described outer detent mechanism can be locked in axially adjacent to or away from interior detent mechanism and axially drainage tube along drainage tube, positioning section is formed between described interior detent mechanism and outer detent mechanism, the hardness of described tube core is more than the hardness of drainage tube, the position limiting structure that can prevent that tube core from departing from from the front end of drainage tube after tube core inserts in drainage tube is provided between described tube core and drainage tube, the image collection assembly of drainage tube front end can be exposed to by being provided with the front end of tube core.Advantage is：Inside and outside lockable, avoid drainage tube from coming off or pneumoderm, be conveniently formed directly into the thoracic cavity of patient, and can directly observe thoracic cavity drainage situation.

Description

The chamber closed drainage pipe applier that visual type self-locking is fixed

Technical field

The utility model belongs to technical field of medical instruments, and the chamber enclosed fixed more particularly, to a kind of visual type self-locking is drawn Flow tube applier.

Background technology

Closed drainage of thoracic cavity operation is treatment pyothorax, traumatic hemothorax, pneumothorax, the effective ways of spontaneous pneumothorax, is out chest Postoperative reconstruction, maintain intrathoracic negative pressure, drain pneumatosis, hydrops in thoracic cavity, promoting the important measures of lung expansion.But existing thoracic cavity There are many shortcomings in closed drainage pipe, cause complex operation, specific as follows：1st, existing closed thoracic drainage tube because material compared with It is soft, then penetrate when in the thoracic cavity of patient, it is necessary to the drainage head of drainage tube is clamped with aid can just fill in, the side of this feeding Method is, it is necessary to separate wall of the chest muscle layer and intercostal muscle to establish enough tunnel spaces, under the conditions of more sufficient local anaesthesia, mistake More blunt separation wall of the chest muscle layer and intercostal muscle can also cause great pain to patient, while increase wall of the chest blood vessel, intercostal blood The probability of pipe damage, unmanageable bleeding may be caused, or even accidentally injure diaphram, liver and spleen；2nd, due to existing thoracic cavity Closed drainage pipe is cylindricality medium-soft straight tube, after its head end fills in thoracic cavity by clamp, it can not be made to fix in time, is easy to slip Go out thoracic cavity, it may be necessary to which placement positioning can be only achieved Clinical practice requirement repeatedly, both delay the time of suing and labouring, and there is also larger wind Danger；3rd, existing closed thoracic drainage tube wall has several side openings, and farthest side opening is away from head end about 5cm, in the mistake put with clamp plug Cheng Zhong, air is easy to cause the collapse of lung to aggravate into thoracic cavity through side opening, even if subsequent closed drainage rapidly can draw gas Go out, the collapse of lung caused by this process still has certain detrimental effect to breath cycle with multiple；4th, due to existing drainage tube Can not voluntarily it be fixed during indwelling, it is necessary to link together and could fix with the skin closure of patient, because skin has Certain elasticity, after skin is fixed in drainage tube suture, when ductus thoracicus is pulled by external force, side opening may be retreated to subcutaneous, cause skin Lower wind-puff, when patient skin relaxation or deficient firm suture, such case is easier to occur, and there is also larger uncertain wind Danger.

In order to be improved to prior art, people have carried out long-term exploration, it is proposed that various solutions. For example, Chinese patent literature discloses a kind of retractable sack locking type thoracentesis closed thoracic drainage tube [application number： CN201610775269.6], including puncture needle and drainage tube, drainage tube head carries tapered front end mouth, intraoral in tapered front end Puncture needle snap ring is provided with, the side wall close to bushing head is provided with side opening, and end is leakage fluid dram, close to drainage tube body head The outer tube wall in portion is provided with the ring-type retractable sack for inflation or topping up, it is characterised in that：Drainage tube wall in be provided with The retractable sack gas/liquid passage of retractable sack connection；Thoracic cavity passage is provided with tube wall, thoracic cavity Channel front end mouth is positioned close to pipe The outer tube wall on body head, retractable sack gas/liquid passage rear port and thoracic cavity passage rear port are with closed joint.

Although such scheme solves the deficiencies in the prior art to a certain extent, drainage tube material is softer, penetrates , it is necessary to which the drainage head of drainage tube is clamped with aid can just fill in when in the thoracic cavity of patient, the method for this feeding is, it is necessary to divide From wall of the chest muscle layer and intercostal muscle to establish enough tunnel spaces, under the conditions of more sufficient local anaesthesia, excessive passivity Separation wall of the chest muscle layer and intercostal muscle great pain can be also caused to patient, while increase wall of the chest blood vessel, intercostal vessels damage Probability, unmanageable bleeding may be caused, or even accidentally injure diaphram, liver and spleen；The front end of drainage tube does not have camera, Drainage situation can not be directly observed, global design is reasonable not enough.

Utility model content

The purpose of this utility model be in view of the above-mentioned problems, provide a kind of inside and outside lockable, avoid drainage tube come off or Pneumoderm, the thoracic cavity of patient is conveniently formed directly into, and the visual type that can directly observe thoracic cavity drainage situation locks certainly Fixed chamber closed drainage pipe applier.

To reach above-mentioned purpose, the utility model employs following technical proposal：The chamber enclosed that the self-locking of this visual type is fixed Drainage tube applier, it is characterised in that including drainage tube one end and the tube core made of hard material can be inserted in, and be located at Interior detent mechanism and outer detent mechanism on the outside of drainage tube, described outer detent mechanism can along drainage tube axially adjacent to or it is remote Interior detent mechanism and drainage tube can be axially locked in, positioning section is formed between described interior detent mechanism and outer detent mechanism, The hardness of described tube core is more than the hardness of drainage tube, is provided between described tube core and drainage tube after tube core inserts in drainage tube The position limiting structure that can prevent tube core from departing from from the front end of drainage tube, the figure that can be exposed to drainage tube front end is provided with the front end of tube core As acquisition component.

Insertion tube core made of hard material in drainage tube so that drainage tube need not clamp by aid is The thoracic cavity of patient can be formed directly into, it is not necessary to separate wall of the chest muscle layer and intercostal muscle to establish enough tunnel spaces, reduce doctor The medical care precess carried out required for raw, excessive blunt separation wall of the chest muscle layer and intercostal muscle are avoided to painful caused by patient.It is interior Detent mechanism is beneficial to drainage tube head in intrathoracic positioning, and outer detent mechanism is beneficial to positioning of the drainage tube in human external, and two End positioning realizes the fixation of drainage tube, avoids that drainage tube comes off or pneumoderm, position limiting structure can prevent tube core from drainage The front end of pipe departs from, and stabilized structure, the distance between interior detent mechanism and outer detent mechanism can according to circumstances be adjusted, spirit Active strong, image collection assembly can be acquired to drainage image, and doctor can directly observe drainage situation, and global design is closed Reason.

In the chamber closed drainage pipe applier that above-mentioned visual type self-locking is fixed, described image collection assembly includes solid It is scheduled on the camera and illuminator of tube core front end, the connecting line of described camera and illuminator axially extends to pipe along tube core The rear end of core.Illuminator provides illumination, and doctor directly observes the drainage situation of inside by camera.

In the chamber closed drainage pipe applier that above-mentioned visual type self-locking is fixed, the company of described camera and illuminator Wiring is axially arranged in tube core or is extended along the wiring groove opened in die surfaces.Beneficial to the security setting of circuit.

In the chamber closed drainage pipe applier that above-mentioned visual type self-locking is fixed, described interior detent mechanism includes being located at Air bag on the outside of drainage tube, described air bag are connected with inflation/deflation mechanism；Described inflation/deflation mechanism includes leading to airbags Breather pipe, described breather pipe is connected with aerating device, and the list that can prevent that gas is discharged in air bag is provided with breather pipe To valve.Air bag inflation/deflation is the change that its volume can be achieved, and when air bag increases, its outer wall is in contact with muscle layer in thoracic cavity, is led to Cross frictional force and extruding force realizes positioning, positioning method is more flexible, when needing positioning, it is only necessary to gas is released, Easy to use, check valve realizes that gas unidirectional enters, and avoids the gas in air bag from being spilt by breather pipe.

In the chamber closed drainage pipe applier that above-mentioned visual type self-locking is fixed, described outer detent mechanism includes being placed on Drainage tube periphery and the positioning tube and locking pipe sleeve that can be moved axially along drainage tube, described positioning tube includes can be radially The self-locking pipe clamp of scaling, there is the positioning disk towards interior detent mechanism, described self-locking pipe clamp and lock in one end of self-locking pipe clamp Self-locking pipe clamp radial contraction can be forced so that self-locking pipe clamp after self-locking pipe clamp is inserted in locking pipe sleeve by being provided between fixed tube set The guide structure being axially positioned on drainage tube.When locking pipe sleeve is tightly placed on positioning tube, positioning tube is mutually fixed with drainage tube, The positioning disk of positioning tube fits with human body, realizes outside positioning, simple to operate, easy to use.

In the chamber closed drainage pipe applier that above-mentioned visual type self-locking is fixed, the remotely located disk of described self-locking pipe clamp One end have it is some multiple circumferentially spaced clamp and when each clamp insert in locking pipe sleeve in after described in clamp energy Mutually collapsed in the presence of guide structure；Described guide structure includes circular conical surface and circular conical surface located at locking pipe sleeve inwall Larger-size one end towards positioning disk.By the mutual gathering between clamp, so as to change the size of positioning tube so that each Individual clamp is close on drainage tube, is realized and fixed by frictional force, and the orientation that guide structure is beneficial to clamp is closed up.

In the chamber closed drainage pipe applier that above-mentioned visual type self-locking is fixed, described positioning disk is sucker and sucker Adsorption plane towards interior detent mechanism.By sucker mode, positioning disk is adsorbed on human body, further enhances the effect of positioning Fruit, positioning is more firm, avoids drainage tube from slipping.

In the chamber closed drainage pipe applier that above-mentioned visual type self-locking is fixed, described position limiting structure includes being located at and drawn The drainage head of flow tube front end, the front end of described drainage head have the opening that image collection assembly can be supplied to be exposed to drainage tube, institute The open internal diameter size stated is no more than the outside dimension of tube core front end；The outer surface of described drainage head is big in the small rear end in front end And in the blunt nosed structure of frustum type, the smooth surface of described drainage head.Image collection assembly exposes from the opening of drainage tube, profit Yu doctor observes the drainage situation of drainage tube front end.

In the chamber closed drainage pipe applier that above-mentioned visual type self-locking is fixed, have at least one on described drainage head Individual conduction hole, and all conduction holes of drainage tube are arranged on drainage head.Air does not allow The book of Changes conduction hole to enter thoracic cavity, avoids The situation of the collapse of lung.

In the chamber closed drainage pipe applier that above-mentioned visual type self-locking is fixed, described interior detent mechanism and drainage head It is disposed adjacent；The front end of described tube core has the small rear end in front end big and in the head of frustum type, the profile on described head with The inner wall shape of drainage head is adapted, and described image collection assembly is fixed on the outer face on head.Interior detent mechanism is arranged on The adjacent position of drainage head, beneficial to the positioning of drainage head, image collection assembly is fixed on the outer face on head, can directly observe To the drainage situation of front end.

Compared with prior art, the advantages of chamber closed drainage pipe applier that the self-locking of this visual type is fixed, is：

First, insertion tube core made of hard material in drainage tube so that drainage tube need not be by aid Clamping can be formed directly into the thoracic cavity of patient, it is not necessary to separate wall of the chest muscle layer and intercostal muscle to establish enough tunnel spaces, subtract Lack the medical care precess carried out required for doctor, avoid excessive blunt separation wall of the chest muscle layer and intercostal muscle to pain caused by patient It is bitter.

Second, interior detent mechanism is beneficial to drainage tube head in intrathoracic positioning, and outer detent mechanism is beneficial to drainage tube in people Positioning outside body, both ends, which position, realizes the fixation of drainage tube, avoids drainage tube from coming off or pneumoderm, position limiting structure energy Prevent tube core from departing from from the front end of drainage tube, stabilized structure, the distance between interior detent mechanism and outer detent mechanism being capable of bases Situation is adjusted, and flexibility is strong.

3rd, image collection assembly can be acquired to drainage image, and doctor can directly observe drainage situation；It is all Conduction hole is arranged on drainage head.Air does not allow The book of Changes conduction hole to enter thoracic cavity, avoids the situation of the collapse of lung.

Brief description of the drawings

Fig. 1 is structural representation provided by the utility model.

Fig. 2 is sectional view provided by the utility model.

Fig. 3 is partial enlarged drawing provided by the utility model.

Fig. 4 is the structural representation of cell parts provided by the utility model.

In figure, drainage tube 1, tube core 2, interior detent mechanism 3, outer detent mechanism 4, positioning section 5, position limiting structure 6, image are adopted Collect component 7, camera 8, illuminator 9, air bag 10, breather pipe 11, check valve 12, positioning tube 13, locking pipe sleeve 14, self-locking pipe clamp 15th, positioning disk 16, clamp 17, circular conical surface 18, adsorption plane 19, drainage head 20, opening 21, conduction hole 22, head 23, charge and discharge mechanism of qi Structure 24.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

As Figure 1-4, the chamber closed drainage pipe applier that the self-locking of this visual type is fixed includes that drainage tube 1 one can be inserted in End and tube core 2 made of hard material, and interior detent mechanism 3 and outer detent mechanism 4 located at the outside of drainage tube 1, it is outer fixed Position mechanism 4 can be locked in axially adjacent to or away from interior detent mechanism 3 and axially drainage tube 1, interior detent mechanism along drainage tube 1 Form positioning section 5 between 3 and outer detent mechanism 4, the hardness of tube core 2 is more than the hardness of drainage tube 1, tube core 2 and drainage tube 1 it Between be provided with the position limiting structure 6 that tube core 2 can be prevented when tube core 2 inserts in drainage tube 1 after from the disengaging of the front end of drainage tube 1, in tube core 2 Front end is provided with the image collection assembly 7 that can be exposed to the front end of drainage tube 1.

Insertion tube core 2 made of hard material in drainage tube 1 so that drainage tube 1 need not be by auxiliary tool clamp The thoracic cavity of patient can be formed directly into by holding, it is not necessary to separated wall of the chest muscle layer and intercostal muscle to establish enough tunnel spaces, reduced The medical care precess carried out required for doctor, excessive blunt separation wall of the chest muscle layer and intercostal muscle are avoided to pain caused by patient It is bitter.Interior detent mechanism 3 is beneficial to the head of drainage tube 1 in intrathoracic positioning, and outer detent mechanism 4 is beneficial to drainage tube 1 in human external Positioning, both ends, which position, realizes the fixation of drainage tube 1, avoids that drainage tube 1 comes off or pneumoderm, position limiting structure 6 can be prevented Only tube core departs from from the front end of drainage tube 1, stabilized structure, and the distance between interior detent mechanism 3 and outer detent mechanism 4 being capable of bases Situation is adjusted, and flexibility is strong, and image collection assembly 7 can be acquired to drainage image, and doctor, which can directly observe, to draw Stream situation, global design are reasonable.

Wherein, image collection assembly 7 includes being fixed on the camera 8 and illuminator 9 of the front end of tube core 2, camera 8 and luminous The connecting line of body 9 axially extends to the rear end of tube core 2 along tube core 2.Illuminator 9 provides illumination, and doctor is direct by camera 8 Drainage situation inside observation.The connecting line of camera 8 and illuminator 9 is axially arranged in tube core 2 or along opening in tube core 2 The wiring groove on surface is extended.Beneficial to the security setting of circuit.

Wherein, interior detent mechanism 3 includes the air bag 10 located at the outside of drainage tube 1, and air bag 10 is connected with inflation/deflation mechanism 24； Inflation/deflation mechanism 24 includes the breather pipe 11 being connected with air bag 10, and breather pipe 11 is connected with aerating device, and in breather pipe 11 It is provided with the check valve 12 that can prevent that gas is discharged in air bag 10.The inflation/deflation of air bag 10 is the change that its volume can be achieved, and works as gas When capsule 10 increases, its outer wall is in contact with muscle layer in thoracic cavity, realizes positioning by frictional force and extruding force, positioning method is more Flexibly, when needing positioning, it is only necessary to release gas, easy to use, check valve 12 realizes that gas unidirectional enters, and avoids gas Gas in capsule 10 is spilt by breather pipe 11.Interior detent mechanism 3 is disposed adjacent with drainage head 20；Before the front end of tube core 2 has Hold small rear end big and head 23 in frustum type, the profile and the inner wall shape of drainage head 20 on head 23 are adapted, IMAQ Component 7 is fixed on the outer face on head 23.Interior detent mechanism 3 is arranged on the adjacent position of drainage head 20, beneficial to drainage head 20 Positioning, image collection assembly 7 are fixed on the outer face on head 23, can observe directly the drainage situation of front end.

Wherein, outer detent mechanism 4 includes the positioning tube that is placed on the periphery of drainage tube 1 and can be moved axially along drainage tube 1 13 include the self-locking pipe clamp 15 that can radially scale, have court in one end of self-locking pipe clamp 15 with locking pipe sleeve 14, positioning tube 13 The positioning disk 16 of inside detent mechanism 3, it is provided between self-locking pipe clamp 15 and locking pipe sleeve 14 when self-locking pipe clamp 15 inserts in locking pipe The radial contraction of self-locking pipe clamp 15 can be forced so that self-locking pipe clamp 15 is axially positioned on the guiding knot on drainage tube 1 after in set 14 Structure.When locking pipe sleeve 14 is tightly placed on positioning tube 13, positioning tube 13 is fixed with the phase of drainage tube 1, the positioning disk 16 of positioning tube 13 Fitted with human body, realize outside positioning, it is simple to operate, it is easy to use.One end of the remotely located disk 16 of self-locking pipe clamp 15 has It is some that in multiple circumferentially spaced clamp 17 and after each clamp 17 is inserted in locking pipe sleeve 14, clamp 17 can be tied in guiding Mutually collapsed in the presence of structure；Guide structure include located at locking the inwall of pipe sleeve 14 circular conical surface 18 and circular conical surface 18 size compared with Big one end is towards positioning disk 16.By the mutual gathering between clamp 17, so as to change the size of positioning tube 13 so that each Clamp 17 is close on drainage tube 1, is realized and fixed by frictional force, and the orientation that guide structure is beneficial to clamp 17 is closed up.As one Kind improve, positioning disk 16 is the adsorption plane 19 of sucker and sucker towards interior detent mechanism 3.By sucker mode, positioning disk 16 is inhaled It is attached on human body, further enhances the effect of positioning, positioning is more firm, avoids drainage tube 1 from slipping.

Wherein, position limiting structure 6 includes the drainage head 20 located at the front end of drainage tube 1, and the front end of drainage head 20 has can be for figure As acquisition component 7 is exposed to the opening 21 of drainage tube 1, the internal diameter size of opening 21 is no more than the outside dimension of the front end of tube core 2；Draw The outer surface of stream first 20 big and in frustum type blunt nosed structure, smooth surface of drainage head 20 in the small rear end in front end.IMAQ Component 7 exposes from the opening 21 of drainage tube 1, and the drainage situation of the front end of drainage tube 1 is observed beneficial to doctor.Have extremely on drainage head 20 A few conduction hole 22, and all conduction holes 22 of drainage tube 1 are arranged on drainage head 20.Air does not allow The book of Changes conduction hole 22 Into thoracic cavity, the situation of the collapse of lung is avoided.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Although more used herein drainage tube 1, tube core 2, interior detent mechanism 3, outer detent mechanism 4, positioning section 5, Position limiting structure 6, image collection assembly 7, camera 8, illuminator 9, air bag 10, breather pipe 11, check valve 12, positioning tube 13, lock Fixed tube set 14, self-locking pipe clamp 15, positioning disk 16, clamp 17, circular conical surface 18, adsorption plane 19, drainage head 20, opening 21, conduction hole 22nd, the term such as head 23, inflation/deflation mechanism 24, but it is not precluded from the possibility using other terms.Using these terms only It is to more easily describe and explain essence of the present utility model；Be construed as any additional limitation be all with The utility model spirit is disagreed.

Claims (10)

1. the chamber closed drainage pipe applier that a kind of visual type self-locking is fixed, it is characterised in that including drainage tube (1) can be inserted in One end and tube core (2) made of hard material, and the interior detent mechanism (3) on the outside of drainage tube (1) and outer localization machine Structure (4), described outer detent mechanism (4) can be along drainage tubes (1) axially adjacent to or away from interior detent mechanism (3) and can axial lock Drainage tube (1) is terminated in, positioning section (5), described pipe are formed between described interior detent mechanism (3) and outer detent mechanism (4) The hardness of core (2) is more than the hardness of drainage tube (1), is provided between described tube core (2) and drainage tube (1) when tube core (2) inserts in The position limiting structure (6) that can prevent tube core (2) from departing from from the front end of drainage tube (1) after drainage tube (1), sets in the front end of tube core (2) The image collection assembly (7) of drainage tube (1) front end can be exposed to by having.

2. the chamber closed drainage pipe applier that visual type self-locking according to claim 1 is fixed, it is characterised in that described Image collection assembly (7) includes being fixed on the camera (8) and illuminator (9) of tube core (2) front end, described camera (8) and The connecting line of illuminator (9) axially extends to the rear end of tube core (2) along tube core (2).

3. the chamber closed drainage pipe applier that visual type self-locking according to claim 2 is fixed, it is characterised in that described The connecting line of camera (8) and illuminator (9) is axially arranged in tube core (2) or along opening in the wiring on tube core (2) surface Groove is extended.

4. the chamber closed drainage pipe applier that the visual type self-locking according to claim 1 or 2 or 3 is fixed, it is characterised in that Described interior detent mechanism (3) includes the air bag (10) on the outside of drainage tube (1), described air bag (10) and inflation/deflation mechanism (24) it is connected；Described inflation/deflation mechanism (24) includes the breather pipe (11) being connected with air bag (10), described breather pipe (11) it is connected with aerating device, and the check valve (12) that can prevent that gas is discharged in air bag (10) is provided with breather pipe (11).

5. the chamber closed drainage pipe applier that the visual type self-locking according to claim 1 or 2 or 3 is fixed, it is characterised in that Described outer detent mechanism (4) includes the positioning tube that is placed on drainage tube (1) periphery and can be moved axially along drainage tube (1) (13) and pipe sleeve (14) is locked, described positioning tube (13) includes the self-locking pipe clamp (15) that can radially scale, in self-locking pipe clamp (15) one end has the positioning disk (16) towards interior detent mechanism (3), described self-locking pipe clamp (15) and locking pipe sleeve (14) Between be provided with when self-locking pipe clamp (15) insert in locking pipe sleeve (14) it is interior after can force self-locking pipe clamp (15) radial contraction so that oneself Lock tube card (15) is axially positioned on the guide structure on drainage tube (1).

6. the chamber closed drainage pipe applier that visual type self-locking according to claim 5 is fixed, it is characterised in that described One end of self-locking pipe clamp (15) remotely located disk (16), which has, some in multiple circumferentially spaced clamp (17) and works as each card Plate (17) clamp (17) described after inserting in locking pipe sleeve (14) can mutually collapse in the presence of guide structure；Described draws Guide structure includes determining located at the circular conical surface (18) of locking pipe sleeve (14) inwall and larger-size one end direction of circular conical surface (18) Position disk (16).

7. the chamber closed drainage pipe applier that visual type self-locking according to claim 6 is fixed, it is characterised in that described Positioning disk (16) is the adsorption plane (19) of sucker and sucker towards interior detent mechanism (3).

8. the chamber closed drainage pipe applier that the visual type self-locking according to claim 1 or 2 or 3 is fixed, it is characterised in that Described position limiting structure (6) includes the drainage head (20) located at drainage tube (1) front end, and the front end of described drainage head (20) has The opening (21) of drainage tube (1) can be exposed to for image collection assembly (7), the internal diameter size of described opening (21) is no more than pipe The outside dimension of core (2) front end；The outer surface of described drainage head (20) big and in frustum type blunt nosed knot in the small rear end in front end Structure, the smooth surface of described drainage head (20).

9. the chamber closed drainage pipe applier that visual type self-locking according to claim 8 is fixed, it is characterised in that described There is at least one conduction hole (22), and all conduction holes (22) of drainage tube (1) are arranged at drainage head on drainage head (20) (20) on.

10. the chamber closed drainage pipe applier that visual type self-locking according to claim 9 is fixed, it is characterised in that described Interior detent mechanism (3) be disposed adjacent with drainage head (20)；The front end of described tube core (2) has the small rear end in front end big and in cone The head (23) of bench-type, the profile and the inner wall shape of drainage head (20) of described head (23) are adapted, and described image is adopted Collection component (7) is fixed on the outer face of head (23).