CN205729476U

CN205729476U - A kind of puncture drainage needle

Info

Publication number: CN205729476U
Application number: CN201620599971.7U
Authority: CN
Inventors: 张冰
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-16
Filing date: 2016-06-16
Publication date: 2016-11-30
Anticipated expiration: 2026-06-16

Abstract

This utility model provides a kind of puncture drainage needle, belongs to medical instruments field, and including puncture needle and drainage tube, puncture needle includes needle tip and fixes the needle body part being connected with needle tip.Needle body part is hollow structure, and needle body part has at least one lateral openings extended along its length, and drainage tube is removable lining to be arranged in needle body part, drainage tube by lateral openings and body sections from.Drainage tube includes the first end away from needle tip and the second end near needle tip, and the sidewall of its second end close of drainage tube is provided with conduction hole.When this puncture drainage needle uses, can while puncturing vomica, drainage tube be sent among vomica, and can in vomica, puncture needle can exit smoothly by drainage tube indwelling, thus both avoided and affected part is cut the bigger cicatrix brought, reduce again nosocomial infection risk, and operation technique is convenient, increase therapeutic effect.

Description

A kind of puncture drainage needle

Technical field

This utility model relates to technical field of medical instruments, in particular to a kind of puncture drainage needle.

Background technology

Abscess includes that mammary abscess is common disease, and conventional treatments of the prior art is by surgical incision vomica Rear removing pus.The defect of this Therapeutic Method is that operative incision is big, wound healing slow, increases misery and the treatment cost of patient With, and ugly cicatrix after wound healing, can be left, cause some patients to be reluctant operation, delay treatment opportunity.In addition, also Having another kind of Therapeutic Method, it aspirates pus by fine needle aspiration vomica, but this method is difficult to remove totally by pus, remaining Pus can cause chronic inflammatory disease, and therapeutic effect is poor.

The utility application of Chinese patent CN1672744A discloses one " mammary gland apostasis microtraumato therqeutical pipe ", should Treatment tube includes that sidewall has the drainage catheter of conduction hole, is inserted with hard and inserts rod in drainage catheter, inserts rod and assists to draw It is interior to be drained by drainage catheter by pus that conduit inserts vomica, and drainage catheter sidewall is additionally provided with delivery tube and drain Mouthful, but this treatment tube is when operation, punctures and catheter drainage is that separate operation completes, and i.e. must first use what other assisted to wear Vomica tissue is punctured and opens a passage by thorn equipment, then drainage tube inserts under the support inserting rod vomica and realizes wearing Thorn drain, which adds step and the time of operation, increases the misery of patient, and more obvious drawback is: complete in puncture Shi Yin does not has drainage tube to follow up, and pus can the most substantial amounts of excrete, and pollutes ward environment, increases nosocomial infection generation wind Danger, and operating process is loaded down with trivial details, causes this minimally-invasive treatment pipe to be not suitable for extensively applying.

Therefore, research and develop a set of practicality easy and simple to handle for doctor, microtrauma and eutherapeutic abscess puncture and draw Stream apparatus, becomes the urgent needs of abscess disease treatment technical field.

Utility model content

The purpose of this utility model is to provide a kind of puncture drainage needle, and it can be by drainage tube while thrusting vomica Send among vomica, and can by drainage tube indwelling, in vomica, puncture needle can exit smoothly, thus both avoided and affected part carried out Cut the bigger cicatrix brought, reduce again nosocomial infection risk, and operation technique is convenient, increase therapeutic effect.

This utility model realizes by the following technical solutions:

A kind of puncture drainage needle, including puncture needle and drainage tube, puncture needle includes needle tip and fixing with needle tip is connected Needle body part.Needle body part is hollow structure, and needle body part has at least one lateral openings extended along its length, drainage tube Removable lining be arranged in needle body part, drainage tube by lateral openings and body sections from.Drainage tube includes away from needle tip First end and the second end near needle tip, the sidewall of the second end of drainage tube is provided with conduction hole.

During use, because drainage tube is placed in the hollow structure of needle body part, during needle tip thrusts vomica, drain Pipe enters vomica together also with needle body part, now, by the lateral openings of needle body part by drainage tube and body sections from, thereafter Puncture needle is exited vomica, and the second end of drainage tube is retained in vomica, and the first end of drainage tube stretches out external, vomica In pus enter drainage tube by the conduction hole that is arranged on the second side wall of drainage tube in and from the first end of drainage tube Discharge.Drainage tube can be sent among vomica while thrusting vomica by this puncture drainage needle, and drainage tube can be with needle body part side Just separate, thus puncture needle can exit smoothly in vomica by the second end indwelling of drainage tube, thus both avoided affected part is entered Row cuts the bigger cicatrix brought, while making again vomica be punctured, pus can be directly entered drainage tube, it is to avoid outside pus Overflow and expose, reduce nosocomial infection risk, and operation technique is convenient, increase therapeutic effect.

Further, above-mentioned lateral openings is two, and two lateral openings intervals are arranged.Needle body part has two laterally to open Mouthful, then when the second end and the body sections of drainage tube is in time stretching out one of them lateral openings, and the first end of drainage tube is then from phase To another lateral openings stretch out, now puncture needle outwards exits, then what what drainage tube was relative formed two lateral openings Clog-free movement in space, exiting of puncture needle would not be stopped by drainage tube.This also makes puncture needle to facilitate Outwards exit without the angle considered between puncture needle and drainage tube, decrease tissue during puncture needle exits Tension force, reduce surgical wound.

Further, above-mentioned drainage tube is soft pipe, and the inwall of drainage tube is provided with a plurality of fin, and every fin is from first Hold and extend to the second end.Drainage tube is in drainage process, if drainage tube occurs bending or pressurized, there will be tube chamber blocking, no It is beneficial to drain, fin is set by the inwall at drainage tube, drainage tube rigidity in the longitudinal direction, and adjacent two can be strengthened The passage of channel-shaped can also be formed between bar fin on the inwall of drainage tube, thus ensure that pus drain is unobstructed.Drain simultaneously Pipe is soft pipe, can be made soft silica gel tube by soft silica gel, and the second end at flexible drainage tube is retained in the vomica of patient When, this flexible drainage tube can reduce the damage to in-vivo tissue, reduces the misery of patient.

Further, being inserted with support bar in above-mentioned drainage tube, support bar stretches out from the first end of drainage tube.By arranging Support bar, uses support bar to prop up the second end of drainage tube, it is ensured that drainage tube together enters vomica with puncture needle, prevents simultaneously When exiting puncture needle, drainage tube is exited vomica with puncture needle, it is ensured that drainage tube can be stayed in vomica, and only will puncture Pin withdraws from vomica.

Further, above-mentioned needle body part has the depressed part to needle tip indent with the junction of needle tip.Depressed part Effect is that the end of the second end to drainage tube is fixed, and prevents drainage tube during puncturing from tying from the hollow of needle body part Structure is deviate from.

Further, above-mentioned puncture drainage needle also includes arm, negative pressure device and three-way valve.One end of arm is drawn with close The tube chamber connection of the drainage tube of the first end of flow tube, an opening of the other end connecting tee valve of arm, another of three-way valve Individual opening is connected with negative pressure device.Using this structure, the 3rd opening of three-way valve can connect syringe, passes through syringe pump Pus, flushing vomica and administration, carry out continuing to vomica thereafter through the negative pressure device being connected with another opening of three-way valve Drain.

Alternatively, above-mentioned puncture drainage needle can also include three-way valve and negative pressure device, the one of three-way valve Individual opening connects with the tube chamber of drainage tube, and another opening of three-way valve is connected with negative pressure device.This structure does not has arm, and three Logical valve directly connects with the tube chamber of drainage tube, thus realizes aspirating pus as above, rinsing vomica, administration and persistently draw Stream.

Further, one end away from needle tip of above-mentioned needle body part is provided with puncture needle handle, and stretching out of support bar is drawn One end of flow tube is provided with support bar handle.Using this structure, the person of being convenient to operation completes vomica puncture, drainage tube and needle body Part from and the operation exited of puncture needle.

Further, above-mentioned puncture needle handle has groove portion, and groove portion is through with a lateral openings, support bar away from pin One end of tip is removable lining to be arranged in groove portion.One end away from needle tip by support bar is arranged on the groove of puncture needle handle In portion so that puncture drainage needle overall structure is compacter, when carrying out the operation that puncture needle exits after puncture needle thrusts vomica, Groove portion is so that support bar is the most laterally separated with puncture needle handle so that exiting external by puncture needle.

Further, above-mentioned drainage tube is provided with the fixing machine that drainage tube is fixed on skin near the position of its first end Structure.After puncture needle takes out vomica, staying in vomica by the second end of drainage tube, the first end exposes external, for preventing drain Pipe comes off, and needs to be fixed drainage tube, uses the fixed mechanism that drainage tube is fixed on skin, can facilitate drainage tube Fix on the skin of the patient, facilitate the constant drainage of drainage tube.This fixed mechanism that drainage tube is fixed on skin includes Medical application or suture with needle or fixing safety pin or sacculus etc..

The puncture drainage needle of offer of the present utility model provides the benefit that:

The puncture drainage needle that this utility model provides, its needle body part is hollow structure, and needle body part has at least one along it The lateral openings that length direction extends, drainage tube is removable lining to be arranged in needle body part, and drainage tube passes through lateral openings and needle body Part from, thus puncture needle can be exited smoothly external and will separate after drainage tube be retained in vomica, solve drain Pipe together punctures the technical barrier that in entering vomica, puncture needle can not exit smoothly with puncture needle.Also avoid traditional operation pair Affected part carries out cutting the consequence of the bigger cicatrix brought, and while making again vomica be punctured, pus can be directly entered drainage tube, Avoid the excessive exposure of pus, reduce nosocomial infection risk, and operation technique is convenient, increase therapeutic effect, reduce patient's pain Bitter.This utility model can be used for treating abscess disease, thoracic cavity or seroperitoneum disease, is particularly suited for treating mammary abscess disease Sick.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of this utility model embodiment, will use required in embodiment below Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiment of the present utility model, the most should be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used Fall within protection domain of the present utility model obtaining other relevant accompanying drawings according to these accompanying drawings.

The structural representation of the puncture drainage needle that Fig. 1 provides for embodiment 1 of the present utility model；

The structural representation of the puncture needle of the puncture drainage needle that Fig. 2 provides for embodiment 1 of the present utility model；

The cross-sectional view of the needle body part of the puncture drainage needle that Fig. 3 provides for embodiment 1 of the present utility model；

The structural representation of the drainage tube of the puncture drainage needle that Fig. 4 provides for embodiment 1 of the present utility model；

The cross-sectional view of the drainage tube of the puncture drainage needle that Fig. 5 provides for embodiment 1 of the present utility model；

The use state diagram of the puncture drainage needle that Fig. 6 provides for embodiment 1 of the present utility model；

One structural representation of the puncture needle of the puncture drainage needle that Fig. 7 provides for embodiment 2 of the present utility model；

The another side structural representation of the puncture needle of the puncture drainage needle that Fig. 8 provides for embodiment 2 of the present utility model；

The cross-sectional view of the needle body part of the puncture drainage needle that Fig. 9 provides for embodiment 2 of the present utility model；

The use state diagram of the puncture drainage needle that Figure 10 provides for embodiment 2 of the present utility model.

Reference collects:

Puncture drainage needle 100a, 100b；Puncture needle 110a, 110b；Drainage tube 130；Arm 140；Support bar 150；Support Bar handle 151；Needle tip 111；Needle body part 112；Puncture needle handle 113；Lateral openings 114；Groove portion 115；Depressed part 116；Draw Flow tube the first end 131；Drainage tube the second end 132；Conduction hole 134；Fin 135；Three-way valve 141；Negative pressure device 142；Block piece 136；Semilune step 137；Vomica 180；Skin 190.

Detailed description of the invention

For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched The embodiment stated is a part of embodiment of this utility model rather than whole embodiments.Generally described in the accompanying drawing herein and The assembly of this utility model embodiment illustrated can be arranged with various different configurations and design.Therefore, below to attached The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed scope of the present utility model, But it is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, ordinary skill people The every other embodiment that member is obtained under not making creative work premise, broadly falls into the model of this utility model protection Enclose.

It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.

Embodiment 1

The structural representation of the puncture drainage needle 100a that Fig. 1 provides for the present embodiment.Refer to Fig. 1, in the present embodiment, wear Thorn drainage needle 100a includes puncture needle 110a, drainage tube 130, support bar 150 and arm 140.

The structural representation of the puncture needle 110a of the puncture drainage needle 100a that Fig. 2 provides for the present embodiment.Refer to Fig. 2, In the present embodiment, puncture needle 110a includes needle tip 111, needle body part 112 and puncture needle handle 113.Needle tip 111 and needle body part 112 fixing connections, needle tip 111 punctures for vomica, convenient operation.

The cross-sectional view of the needle body part 112 of the puncture drainage needle 100a that Fig. 3 provides for the present embodiment.See also Fig. 1, Fig. 2 and Fig. 3, in the present embodiment, needle body part 112 has a lateral openings 114 extended along needle body part 112 length direction, because of This needle body part 112 structure in the form of slot, the cross section of needle body part 112 is the flute profile with a lateral openings 114.Drainage tube 130 Slide, removable lining be arranged in needle body part 112, during needle tip 111 pierces through vomica, drainage tube 130 is supported forward Living the end of the close needle tip 111 of needle body part 112, such drainage tube 130 moves to vomica as well as needle tip 111 and has It is partially in vomica.Drainage tube 130 is removable lining to be arranged in needle body part 112, after vomica punctures successfully, passes through needle body part Drainage tube 130 is separated by the lateral openings 114 along the extension of needle body part 112 length direction of 112 with needle body part 112, will wear thereafter Pricker 110a exits vomica and human body, and is retained in vomica by drainage tube the second end 132, and drainage tube the first end 131 stretches out External.

Please continue to refer to Fig. 2, in the present embodiment, needle tip 111 is made of one piece with needle body part 112.Needle body part One end away from needle tip 111 of 112 is provided with puncture needle handle 113.Medical personnel can be controlled by puncture needle handle 113 The needle tip 111 of puncture needle 110a and the motion of needle body part 112.Puncture needle 110a is hard puncture needle, the system of puncture needle 110a Making material can be high-strength non-metallic material or metal material.

The structural representation of the drainage tube 130 of the puncture drainage needle 100a that Fig. 4 provides for the present embodiment.See also figure 1 and Fig. 4, in the present embodiment, drainage tube 130 includes drainage tube the first end 131 away from needle tip 111 and near needle tip 111 Drainage tube the second end 132, drainage tube the first end 131 described herein and drainage tube the second end 132 be only used for distinguish drainage tube The two ends of 130, it is simple to clearly describe, wherein, drainage tube the second end 132 stretches into when carrying out puncture drainage for drainage tube 130 One end of vomica.Being provided with conduction hole 134 on the sidewall of drainage tube 130 second end 132, conduction hole 134 runs through drainage tube 130 Tube wall, the pus in vomica enters drainage tube 130 from conduction hole 134, then by the drain of drainage tube 130, from drainage tube first Hold and discharge at 131, and finally excrete.

Drainage tube 130 is flexible drainage tube, the most soft silica gel tube.The good biocompatibility of silica gel, the group to human body Knit reaction little, foreign body reaction will not be caused after being placed in tissue, surrounding tissue is not inflamed.By flexible drainage tube 130 The when of staying in the vomica of patient, the tissue of patient will not be damaged.Owing to soft drainage tube 130 is easy to occur Bending, thus cause drainage tube 130 to form blocking, cause pus not derived by drainage tube 130 from vomica smoothly.Fig. 5 The cross-sectional view of drainage tube 130 for the puncture drainage needle 100a that the present embodiment provides.Refer to Fig. 5, in the present embodiment, drawing The inwall of flow tube 130 is provided with a plurality of fin 135, every fin 135 from drainage tube the first end 131 to drainage tube the second end 132 Extend, in strip.Drainage tube 130 occurs bending when, due to the effect of fin 135, it is to avoid drainage tube 130 occurs Blocking, it is ensured that pus is outwards derived smoothly from vomica.Fin 135 is arranged on the inwall of drainage tube 130, it is ensured that drain Pipe 130 bends and does not block.

Please continue to refer to Fig. 4, in the present embodiment, one end of arm 140 and the drainage tube near drainage tube the first end 131 The tube chamber connection of 130, an opening of the other end connecting tee valve 141 of arm 140, another opening of three-way valve 141 is with negative Pressure device 142 connects.Can also connect at the 3rd opening of three-way valve 141 and rinse doser, in order to ensure that pus is smoothly Discharged from vomica by drainage tube 130, use sealing-plug (not shown) to be sealed by drainage tube the first end 131, make pus from propping up Pipe 140 is discharged.Treat to ensure that patient is more convenient, control three-way valve 141 and make arm 140 connection rinse doser, By rinse doser can in vomica saline injection, vomica is carried out, until rinse after pumpback liquid clear Till bright.At the same time it can also be by flushing doser to pus intracavitary administration, vomica is carried out Drug therapy.Medicine can be Antibiotic, hydrogen peroxide etc..When three-way valve 141 is connected with negative pressure device 142, by operation negative pressure device 142, can be in drain Negative pressure, constant drainage is produced in pipe 130.In the present embodiment, negative pressure device 142 is negative pressure ball, can carry with.

Continuing with in the lump refering to Fig. 1 and Fig. 4, in the present embodiment, more preferable embodiment is to arrange to prop up in drainage tube 130 Strut 150, specifically, plugs support bar 150 in drainage tube 130, support bar 150 stretches out from drainage tube the first end 131, drain The end of pipe the second end 132 is not provided with conduction hole 134 and is to close, it is ensured that stretching in drainage tube 130 of support bar 150 One end will not penetrate drainage tube 130.Support bar 150 has certain interval with the tube wall of drainage tube 130, thereby may be ensured that drain After pipe 130 arrives vomica, pus can be drained smoothly by this gap, and can guarantee that support bar 150 can be smoothly from drainage tube Extract out in 130.

During needle tip 111 pierces through vomica, at the skin openings at vomica, drainage tube 130 can be caused certain resistance Power, in order to ensure that drainage tube 130 will not be slided from needle body part 112 hollow structure by lateral openings 114 during puncturing Going out, support bar 150 is inserted in drainage tube 130 and ensures that one end stretching into drainage tube 130 of support bar 150 props up drainage tube The end of two ends 132.Simultaneously as drainage tube 130 is soft silica gel tube, its tube wall is relatively thin, may be propped up when in use Strut 150 is exposed.Therefore, in the present embodiment, please continue to refer to Fig. 4, the end of drainage tube the second end 132 is provided with block piece 136, the material that block piece 136 can use quality harder compared with silica gel is made, it is ensured that the power of the applying of support bar 150 will not make to draw Flow tube 130 produces breakage.In similar embodiment, it is also possible to the tube wall of the end of drainage tube the second end 132 is arranged Relatively thick, form block piece 136, be used for protecting drainage tube 130 to avoid by support bar 150 and pierce through.

In support bar 150 inserts drainage tube 130, make drainage tube 130 together with needle body part 112 in vomica movement time Waiting, drainage tube 130 may remove from needle body part 112 hollow structure.Please continue to refer to Fig. 2, in the present embodiment, needle body part 112 have the depressed part 116 to needle tip 111 indent with the junction of needle tip 111.Support bar 150 stretch into drainage tube 130 The end of one end be resisted against depressed part 116, make one end stretching into drainage tube 130 of support bar 150 to be moved, support One end of bar 150 is fixed, such that it is able to be fixed the end of drainage tube the second end 132, such puncture needle 110a is puncturing During, drainage tube 130 will not be deviate from from the hollow structure of needle body part 112.

In the present embodiment, please continue to refer to Fig. 2, puncture needle handle 113 has groove portion 115, groove portion 115 and lateral openings 114 is through, and one end away from needle tip 111 of support bar 150 is removable lining to be arranged in groove portion 115.Make puncture needle handle 113 Groove portion 115 support bar 150 is formed certain supporting role so that the overall structure of puncture drainage needle 100a is compacter, When carrying out the operation that puncture needle 110a exits after puncture needle 110a thrusts vomica, groove portion 115 is so that support bar 150 is easy Laterally separated with puncture needle handle 113 so that puncture needle 110a is exited external.

Please continue to refer to Fig. 1, in the present embodiment, one end stretching out drainage tube 130 of support bar 150 is provided with support bar hands Handle 151.Support bar handle 151 can facilitate medical personnel to operate support bar 150.Medical personnel can also as required, separately Operation puncture needle handle 113 and support bar handle 151.

The use state diagram of the puncture drainage needle 100a that Fig. 6 provides for the present embodiment.See also Fig. 2～Fig. 6, this reality Executing in example, medical personnel first operate puncture needle handle 113, make needle tip 111 puncture the skin 190 at vomica 180, and to vomica Move in 180, simultaneously drainage tube 130 and support bar 150 also together with move in vomica 180, medical personnel control support bar hands Handle 151 ensures that drainage tube 130 all rests in needle body part 112 hollow structure during whole.Specify in arriving patient's vomica 180 Position after, medical personnel control puncture needle handle 113 and support bar handle 151, first support bar 150 somewhat pumpback are allowed to de- From the depressed part 116 of needle body part 112 with the junction of needle tip 111, then with the edge of the bottom surface of needle body part 112 outer body As fulcrum, utilize lever principle, prize support bar 150, the hollow structure of drainage tube the second end 132 with needle body part 112 is divided From.Medical personnel control puncture needle handle 113 subsequently, make needle body part 112 and needle tip 111 slowly exit vomica 180, thereafter, Again support bar 150 is exited from drainage tube 130, whole during, drainage tube 130 is to insert in vomica 180 all the time, will not The situation of pus pollution load of overflow sick bed occurs, reduces nosocomial infection risk.Simultaneously, it is to avoid affected part cut and brings Bigger cicatrix, and operation technique is convenient, increases therapeutic effect.

In order to enable to be exited among vomica 180 by puncture needle 110a more easily, the most do not increase the wound of puncture simultaneously.This In embodiment, please continue to refer to Fig. 3, the inwall at drainage tube 130 arranges semilune step 137.Drain is propped up at support bar 150 During pipe the second end 132 exits puncture needle 110a, owing to the angle between support bar 150 and puncture needle 110a gradually increases Greatly, the tension force of skin 190 puncture orifice increases.The semilune step 137 arranged by the inwall of drainage tube 130, is exiting puncture During pin 110a, support bar 150 outwards can be taken out, make support bar 150 prop up semilune step 137, thus reduce and prop up Angle between strut 150 and puncture needle 110a, reduces skin 190 puncture orifice tension force, thus is conducive to pulling out puncture needle 110a Go out, and skin 190 puncture orifice will not be expanded.

After drainage tube the second end 132 is stayed in vomica 180, the proper site near drainage tube the first end 131 is provided with Drainage tube 130 is fixed on the fixed mechanism of skin 190.Drainage tube 130 can be fixed on the skin 190 of patient, it is to avoid Drainage tube 130 is deviate from vomica 180, it is ensured that constant drainage.

Embodiment 2

Present embodiments providing a kind of puncture drainage needle 100b, the present embodiment is the basis of the technical scheme in embodiment 1 On the improvement that carries out, the technical scheme that embodiment 1 describes is equally applicable to the present embodiment, embodiment 1 disclosed technical side Case is not repeated to describe, and the present embodiment is in the present embodiment that from the difference of embodiment 1 structure of puncture needle 110b is different.

In the present embodiment, puncture drainage needle 100b includes puncture needle 110b, drainage tube 130, support bar 150 and arm 140.

In the present embodiment, drainage tube 130 is flexible drainage tube, the most soft silica gel tube, including away from needle tip 111 Drainage tube the first end 131 and drainage tube the second end 132 near needle tip 111, the sidewall of drainage tube the second end 132 is provided with Conduction hole 134.The inwall of drainage tube 130 is provided with a plurality of fin 135, every fin 135 from drainage tube the first end 131 to drain Pipe the second end 132 extends.Being inserted with support bar 150 in drainage tube 130, support bar 150 stretches out from drainage tube the first end 131.? One end stretching out drainage tube 130 of strut 150 is provided with support bar handle 151.The inwall of drainage tube 130 is provided with semilune platform Rank 137.Drainage tube 130 is provided with the fixing machine that drainage tube 130 is fixed on skin near the position of drainage tube the first end 131 Structure.One end of arm 140 connects with the tube chamber of the drainage tube 130 near drainage tube the first end 131, and the other end of arm 140 is even Connecing an opening of three-way valve 141, another opening of three-way valve 141 is connected with negative pressure device 142.

One structural representation of the puncture needle 110b of the puncture drainage needle 100b that Fig. 7 provides for the present embodiment, Fig. 8 is this The another side structural representation of the puncture needle 110b of the puncture drainage needle 100b that embodiment provides.See also Fig. 7 and Fig. 8, In the present embodiment, puncture needle 110b includes needle tip 111, needle body part 112 and puncture needle handle 113.Needle tip 111 and needle body part 112 fixing connections, needle body part 112 is hollow structure, and needle body part 112 has in needle tip 111 with the junction of needle tip 111 Recessed depressed part 116.One end away from needle tip 111 of needle body part 112 is provided with puncture needle handle 113.Puncture needle handle 113 Having groove portion 115, groove portion 115 is through with a lateral openings 114, and one end away from needle tip 111 of support bar 150 can be shirked Be arranged in groove portion 115.

The cross-sectional view of the needle body part 112 that Fig. 9 provides for the present embodiment, the puncture drainage needle that Figure 10 provides for the present embodiment The use state diagram of 100b.Seeing also Fig. 7 and Fig. 8, in the present embodiment, needle body part 112 has two along its length The lateral openings 114 extended, two lateral openings 114 intervals are arranged.Drainage tube 130 is removable lining to be arranged in needle body part 112, Drainage tube 130 is separated with needle body part 112 by lateral openings 114.Needle body part 112 has two lateral openings 114, then work as drainage tube Second end 132 separates with needle body part 112 when stretching out one of them lateral openings 114, and drainage tube the first end 131 is then from relative another One lateral openings 114 is stretched out, and now puncture needle 110b outwards exits, then drainage tube 130 relative two lateral openings 114 Clog-free movement in the space formed, exiting of puncture needle 110b would not be by the stop of drainage tube 130.This also makes to wear Pricker 110b can the most outwards exit without the folder considered between puncture needle 110b and drainage tube 130 and support bar 150 Angle, decreases the tension force of human body skin 190 during puncture needle 110b exits, and reduces surgical wound.It is preferably arranged to: two Lateral openings 114 is arranged relative to the axisymmetrical of needle body part 112, makes drainage tube 130 separate with needle body part 112 and more holds Easily, the least to the wound of patient.

The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims

1. a puncture drainage needle, it is characterised in that: include puncture needle and drainage tube, described puncture needle include needle tip and with institute Stating needle tip and fix the needle body part of connection, described needle body part is hollow structure, and described needle body part has at least one along its length The lateral openings that direction extends, described drainage tube is removable lining to be arranged in described needle body part, and described drainage tube passes through described side To opening and described body sections from, described drainage tube includes the first end away from described needle tip and near described needle tip Second end, the sidewall of the second end of described drainage tube is provided with conduction hole.

Puncture drainage needle the most according to claim 1, it is characterised in that: described lateral openings is two, two described sides Arrange to open space.

Puncture drainage needle the most according to claim 1, it is characterised in that: described drainage tube is soft pipe, described drainage tube Inwall be provided with a plurality of fin, described fin from the first end of described drainage tube to described drainage tube second end extend.

Puncture drainage needle the most according to claim 1, it is characterised in that: it is inserted with support bar in described drainage tube, described Support bar stretches out from the first end of described drainage tube.

Puncture drainage needle the most according to claim 1, it is characterised in that: described needle body part and the junction of described needle tip There is the depressed part to needle tip indent.

Puncture drainage needle the most according to claim 1, it is characterised in that: described puncture drainage needle also includes arm, bears Pressure device and three-way valve, one end of described arm connects with the tube chamber of the drainage tube of the first end near described drainage tube, described One opening of the other end connecting tee valve of arm, another opening of described three-way valve is connected with described negative pressure device.

Puncture drainage needle the most according to claim 1, it is characterised in that: described puncture drainage needle also include three-way valve and Negative pressure device, an opening of described three-way valve connects with the tube chamber of described drainage tube, another opening of described three-way valve with Described negative pressure device connects.

Puncture drainage needle the most according to claim 4, it is characterised in that: one end away from needle tip of described needle body part sets Being equipped with puncture needle handle, one end stretching out drainage tube of described support bar is provided with support bar handle.

Puncture drainage needle the most according to claim 8, it is characterised in that: described puncture needle handle has groove portion, described groove Portion is through with a described lateral openings, and one end away from described needle tip of described support bar is removable lining is arranged at described groove In portion.

Puncture drainage needle the most according to claim 1, it is characterised in that: described drainage tube is near the position of its first end It is provided with the fixed mechanism that described drainage tube is fixed on skin.