CN207445261U - A kind of gasbag-type thoracocentesis device - Google Patents

Abstract

The utility model is related to a kind of gasbag-type thoracocentesis devices, including puncture needle and its pass through the sequentially connected gas compressor of drainage tube, drainage bag, it is band spring air bag to be characterized in gas compressor, it is made of spherical envelope and built-in support spring, the check valve being connected with drainage tube is set respectively in spherical envelope feed liquor port and outlet end mouth；Puncture needle is a piercing assembly, it is made of metal needle, needle cannula, drainage needle stand, corking and sealing-plug, the cone barrel cavity that drainage needle stand is connected with drainage branch pipe for one, needle cannula is connected in the small-bore port of cone barrel cavity, corking is blocked in heavy caliber port, sealing-plug sealing is fixed on the inner wall that cone barrel cavity is located between drainage branch pipe and corking, metal needle tail end is connected in corking, its needle point sequentially passes through sealing-plug, needle cannula, and it stretches out outside needle cannula, the check valve of drainage branch pipe connection spherical envelope feed liquor port.The beneficial effects of the utility model are to improve processing safety and simplicity.

Description

A kind of gasbag-type thoracocentesis device

Technical field

The utility model is related to thoracic surgery medical instrument more particularly to a kind of gasbag-type thoracocentesis devices.

Background technology

In medicinal, for there is the patient of pleural effusion, need to hydrops be extracted by thoracentesis, to be diagnosed and be controlled It treats.But pneumothorax paracentesis is as a store period, is to first have to consider the problems of safely.It is as shown in Figure 1, existing Thoracocentesis device mainly includes puncture needle 1a, the syringe 4a as gas compressor and drainage bag 5, puncture needle passes through drainage Pipe 2 is connected with the check valve 3 of syringe feed liquor port, and the outlet end mouth check valve 3 of syringe passes through drainage tube 2 and 5 feed liquor of drainage bag Port connects, and check valve is used to control liquid that can only in vitro flow to patient.In application, medical staff operates push-pull handle, control Air pressure, so as to control drawing liquid speed.But this thoracocentesis device is used, medical staff needs both hands to coordinate using syringe drawing liquid Operation, therefore the depth that puncture needle 1a enters thoracic cavity can not be effectively fixed, to patient there is certain risk, and operate It is not easy, in the case, unless medical staff's cooperation is set again, it is special that puncture needle is helped to fix its depth, but so consumption Take manpower, improve human capital.In addition, existing puncture needle 1a is only the metal needle tubing of pure, torso model is directly pierced into, Unshielded structure be easy to cause the damage of pleura after hydrops amount is reduced, can seriously cause pneumothorax.Patient safety is caused hidden Suffer from.How in view of the above-mentioned problems, a kind of thoracocentesis device that is safe and reliable, being conveniently operated of research and development becomes asking for industry concern Topic.

Utility model content

The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of air bag for reducing risk, being conveniently operated Formula thoracocentesis device replaces syringe to realize singlehanded drawing liquid, another hand can be discharged, for solid using innerspring air bag Determine the depth of puncture needle；And then puncture needle sets safeguard structure again；So as to improve processing safety and simplicity, realize more The treatment of hommization.

Technical solution is used by the utility model solves its technical problem：

A kind of gasbag-type thoracocentesis device, including puncture needle and its by the sequentially connected gas compressor of drainage tube, Drainage bag, it is characterised in that the gas compressor be one band spring air bag, it is described with spring air bag by spherical envelope and built-in branch Support spring form, set respectively in the feed liquor port of the spherical envelope and outlet end mouth be connected with the drainage tube it is unidirectional Valve.

The 1/2-2/3 of a diameter of spherical envelope diameter of the tubular spring；The length of the tubular spring is spherical gas 1.1-1.2 times of capsule diameter.

It is characterized in that the puncture needle is a piercing assembly, by metal needle, the needle cannula being slidably matched with metal needle, draw It flows needle stand, corking and sealing-plug to form, the cone barrel cavity that the drainage needle stand is connected with drainage branch pipe for one, the needle cannula is consolidated The small-bore port of the cone barrel cavity is connected in, the corking 16 is blocked in the heavy caliber port of cone barrel cavity, described close Blocking sealing is fixed on the inner wall that cone barrel cavity is located between drainage branch pipe and corking, and the metal needle tail end is connected in plug It covers, needle point sequentially passes through sealing-plug, needle cannula, and stretches out outside needle cannula, the drainage branch pipe connection spherical gas The check valve of capsule feed liquor port.

Handle is equipped in the corking.

The beneficial effects of the utility model are：It provides with the gasbag-type thoracocentesis device that syringe is replaced with spring air bag, doctor Shield personnel need to only lean on single only holding power zone of action spring air bag, you can realize that the effect of pleural effusion is extracted in control.With the prior art Than for the present apparatus because one-hand operation drawing liquid is so as to release another hand, another hand can be used for effective fixed puncture needle Depth, which thereby enhance processing safety and simplicity.And then further improve, piercing assembly is provided to replace existing Puncture needle in technology penetrates effect since metal needle primarily serves guiding, is extracted after drawing liquid starts, and it is soft only to retain material The needle cannula of matter medical plastic is in thoracic cavity, therefore, compared with the prior art, can effectively avoid the damage to pleura, further protects Patient safety is protected, realizes more humane treatment.

Description of the drawings

Fig. 1 is the structure diagram of thoracocentesis device in the prior art；

Fig. 2 is the improved gasbag-type thoracocentesis device of only syringe provided by the utility model；

Fig. 3 is the structural representation of syringe provided by the utility model and the improved gasbag-type thoracocentesis device of puncture needle Figure；

Fig. 4 is the assembly structure diagram of piercing assembly in Fig. 3.

In figure：

1a puncture needles, 4a syringes；

1 piercing assembly, 11 metal needles, 12 needle cannulas, 13 drainage needle stands, 14 handles, 15 corkings, 16 sealing-plugs, 17 drainages Branch pipe, 2 drainage tubes, 3 check valves, 4 band spring air bags, 41 tubular springs, 42 spherical envelopes, 5 drainage bags, 6 switch valves.

The utility model is described in detail below in conjunction with drawings and examples.

Specific embodiment

Embodiment 1

Fig. 2 shows one kind in prior art basis, the only improved gasbag-type thoracocentesis device of syringe, including with it is existing The identical puncture needle 1a of technology and its by 2 sequentially connected gas compressor of drainage tube, drainage bag 5, the utility model changes Be that the gas compressor is a band spring air bag 4 into point, it is described with spring air bag 4 by spherical envelope 42 and built-in support spring 41 are formed, and set the check valve 3 being connected with drainage tube 2 respectively in the feed liquor port of the spherical envelope 42 and outlet end mouth.

Above-mentioned spring 41 be tubular spring, the 1/2-2/3 of 42 diameter of a diameter of spherical envelope of tubular spring 41；Tubular bullet The length of spring is 1.1-1.2 times of spherical envelope diameter.In this way, the spring 41 being encapsulated in spherical envelope 42 can be sufficiently supported at On the inner wall of spherical envelope, achieve the effect that preferable compressed gas, so as to which effectively the speed of pleural effusion, stream are extracted in control Amount.

In application, medical staff makes spherical envelope band negative pressure, puncture needle 1a is pierced into thoracic cavity, as long as being punctured with breakthrough Sense, that is, halt, fixed pin position, and proceeds by suction hydrops, until completing drawing liquid operation.Using this gasbag-type thoracic cavity Sting device, medical staff need to only lean on single only holding power zone of action spring air bag 4, you can realize that the effect of pleural effusion is extracted in control Fruit.With in the prior art using syringe compared with, because of one-hand operation drawing liquid, so as to release another hand, another hand can be with For effectively fixing the depth of puncture needle, processing safety and simplicity are thereby increased.

Embodiment 2

Fig. 3 shows that puncture needle 1a on the basis of embodiment 1, is further improved to the air bag of a piercing assembly 1 by one kind Formula thoracocentesis device, the piercing assembly is by metal needle 11, the needle cannula 12 being slidably matched with metal needle, drainage needle stand 13, plug Lid 15 and sealing-plug 16 are formed, the cone barrel cavity that the drainage needle stand 13 is connected with drainage branch pipe 17 for one, the needle cannula 12 The small-bore port of the cone barrel cavity is connected in, the corking 16 is blocked in the heavy caliber port of cone barrel cavity, described Sealing-plug 16, which seals, to be fixed on the inner wall that cone barrel cavity is located between drainage branch pipe and corking 16,11 tail end of metal needle It is connected in corking 15, needle point sequentially passes through sealing-plug 16, needle cannula 12, and stretches out outside needle cannula.Drainage branch pipe 17 connects Connect the check valve 3 of the 42 feed liquor port of spherical envelope.Handle 14 is equipped in corking 15, convenient for hand-held.In actual system In work, the metal needle 11 is hollow needle, can so save needle body material, reduces cost of manufacture.The needle point of metal needle 11 stretches out Length outside needle cannula 12 is 1.5-2.5mm.In this way, when being pierced into, metal needle 11 plays guiding penetration, makes needle cannula 12 successfully import in thoracic cavity.Needle cannula 12, drainage tube 2 use soft medical plastics, and drainage needle stand uses hard medical plastic, Corking 15, sealing-plug 16 are made of medical-grade plastics material, and the material of metal needle 11 is using stainless steel or titanium etc..

In application, as shown in figure 3, the drainage branch pipe 17 of piercing assembly 1 connects 42 liquid feeding end of spherical envelope by drainage tube 2 The check valve 3 of mouth；Piercing assembly 1 keeps original state, i.e., corking 15, which is filled in, gets lodged on the port of drainage needle stand 13, and be connected corking 15 Metal needle 11 insertion drainage needle stand 13 cone barrel cavity in, needle point sequentially passes through sealing-plug 16, needle cannula 12, and stretches out Outside needle cannula.First, by be set with needle cannula 12 metal needle 11 be pierced into chest, operated with embodiment 1 it is identical, as long as Breakthrough sense is punctured with, that is, is halted, fixed pin position；Then, metal needle 11 is extracted outside drainage needle stand 13 by handle 14, Since sealing-plug 16 is plastic material, flexible deformation resets, pin hole choke-out, therefore, drains and still keeps sealing inside needle stand 13, It will not leak liquid.Singlehanded zone of action spring air bag 4 starts drawing liquid, drains in the thoracic cavity in needle stand 13 that hydrops can be by draining branch pipe 17, drainage tube 2 flow to drainage bag 5, until drawing liquid is completed.

Compared with the prior art, using device provided in this embodiment, in the raising processing safety and simplicity of embodiment 1 On the basis of advantage, effect is penetrated since metal needle 11 primarily serves guiding, after drawing liquid starts, it is soft doctor only to retain material With the needle cannula 12 of plastics in thoracic cavity, therefore, compared with the prior art, the damage to pleura, protection patient's peace can effectively avoid Entirely, more humane treatment is realized.

The above is only the preferred embodiment of the utility model, not the structure of the utility model is made any Formal limitation.Every any simple modification made according to the technical essence of the utility model to above example is equal Variation and modification, in the range of still falling within technical solutions of the utility model.

Claims (6)

1. a kind of gasbag-type thoracocentesis device, including puncture needle and its by the sequentially connected gas compressor of drainage tube, draw Flow bag, it is characterised in that the gas compressor be one band spring air bag, it is described with spring air bag by spherical envelope and built-in support Spring is formed, and sets the check valve being connected with the drainage tube respectively in the feed liquor port of the spherical envelope and outlet end mouth.

2. a kind of gasbag-type thoracocentesis device according to claim 1, it is characterised in that the spring is tubular spring, The 1/2-2/3 of a diameter of spherical envelope diameter of the tubular spring；The length of the tubular spring is spherical envelope diameter 1.1-1.2 again.

3. a kind of gasbag-type thoracocentesis device according to claim 1 or 2, it is characterised in that the puncture needle is to wear Component is pierced, is made of metal needle, the needle cannula being slidably matched with metal needle, drainage needle stand, corking and sealing-plug, the drainage needle The cone barrel cavity that seat is connected with drainage branch pipe for one, the needle cannula are connected in the small-bore port of the cone barrel cavity, institute The heavy caliber port that corking 16 is blocked in cone barrel cavity is stated, the sealing-plug sealing is fixed on cone barrel cavity and is located at drainage branch On inner wall between pipe and corking, the metal needle tail end is connected in corking, and needle point sequentially passes through sealing-plug, needle cannula, And stretch out outside needle cannula, the drainage branch pipe connects the check valve of the spherical envelope feed liquor port.

4. a kind of gasbag-type thoracocentesis device according to claim 3, it is characterised in that the metal needle is hollow needle, The length that the needle point is stretched out outside needle cannula is 1.5-2.5mm.

5. a kind of gasbag-type thoracocentesis device according to claim 4, it is characterised in that hand is equipped in the corking Handle.

6. a kind of gasbag-type thoracocentesis device according to claim 3, it is characterised in that hand is equipped in the corking Handle.