CN211561266U

CN211561266U - Ventricular external drainage device

Info

Publication number: CN211561266U
Application number: CN201922357396.6U
Authority: CN
Inventors: 徐伦; 顾艳
Original assignee: Lianyungang Hospital Of Traditional Chinese Medicine
Current assignee: Lianyungang Hospital Of Traditional Chinese Medicine
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-25
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a ventricular external drainage device, which comprises a ventricular drainage component and a scalp guiding component, wherein the ventricular drainage component comprises a drainage tube, a guide wire is arranged in the drainage tube, the mouth of the drainage tube is an internal thread mouth, an external thread head fixed with the drainage tube is arranged on the guide wire, and a longitudinal air channel is arranged on the external thread head; a side hole is arranged below the drainage tube, a blind end is arranged at the bottom of the drainage tube, the blind end is of a solid structure, and an inverted cone-shaped recess is formed above the blind end; the scalp guide assembly includes a guide head and a guide rod. The utility model has simple structure, the mouth of the drainage tube is connected with the guide wire through the thread structure, the tension of the drainage tube can be controlled by rotating the thread, the drainage tube is ensured to be straight, and the head end of the ventricular drainage tube can not be bent or deviated; the scalp guide component matched with the drainage tube can enable the drainage tube to be placed farther, the drainage tube is not easy to slip and narrow, and the subcutaneous tissue is less damaged, so that cerebrospinal fluid leakage and intracranial infection can be prevented better.

Description

Ventricular external drainage device

Technical Field

The utility model belongs to the technical field of the ventricles of brain drainage, concretely relates to ventricles of brain external drainage device.

Background

The ventricular external drainage is a technique of placing the front end of a drainage tube with a plurality of side holes in the ventricle after puncture of the skull drilling and ventricle or in the craniotomy and leading out cerebrospinal fluid from the body, is a common emergency treatment means for neurosurgery and is generally placed in the tube for 5-10 days.

In a specific surgical procedure, the use of common ventricular drainage devices presents the following problems: because the ventricular drainage tube needs to be matched with a guide wire for use, in the puncture process, due to the factors that the blind end of the drainage tube is unreasonable in design, a large gap exists between the guide wire and the drainage tube, and the like, the guide wire easily slides in the drainage tube, the head of the drainage tube is inclined and deformed, accurate ventricular puncture is not facilitated, and meanwhile, the puncture channel is easy to bleed.

Secondly, after the ventricular puncture is successful, in order to prevent postoperative intracranial infection, cerebrospinal fluid leakage and the like, the drainage tube needs to be led out from the side of the incision. At present, the common practice is to incise the scalp about 1.5cm long at a position about 2cm away from the edge of an operation incision, suture 2 needles at the incision (one needle is used for fixing a drainage tube, and the other needle is used for closing the incision after the drainage tube is pulled out), open the subcutaneous tissue by using vascular forceps, clamp the subcutaneous tissue, pull out the drainage tube, and then fix the drainage tube. The operation has more bleeding, and the incision of the electrocoagulation operation is often needed, so that the incision is not easy to heal. Meanwhile, subcutaneous hemorrhage and looseness of dura mater suspension wires are easily caused, and the risk of cerebrospinal fluid leakage is increased. At present, a drainage tube guiding device is also used clinically, but the drainage tube guiding device is mostly single-angle and can not be matched with a special arc-shaped structure of the head, so that the puncture distance is short; the front end of the guiding device is provided with the triangular head, so that the damage to tissues around the puncture channel is large, and meanwhile, because the puncture channel outlet is triangular, the drainage tube is not easy to tightly fit with the scalp, cerebrospinal fluid leakage is easy to occur, and the difficulty in sewing the puncture channel outlet in the later period is increased; clinical experience proves that reasonable suture lines (the triangular prism is easy to cut aiming at the lines or the suture line reserved position is not good) are not easy to reserve for the drainage tube by using the drainage tube guiding device, so that the drainage tube is difficult to fix, and scalp is needed to be sutured for the second time after the drainage tube is pulled out, so that unnecessary pain is caused to a patient; after the drainage tube is sleeved on the guiding device, even if the drainage tube is tied and fixed by silk threads, the drainage tube is very easy to slip off when being pulled.

Disclosure of Invention

The utility model discloses a solve current ventricles of brain drainage tube and have above-mentioned technical defect, provide one kind and guarantee that drainage tube head end bending deformation, drainage tube are straight, be convenient for the drainage tube outside the ventricles of brain drainage device of drawing forth from the incision side.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a ventricular external drainage device comprises a ventricular drainage component and a scalp guiding component, wherein the ventricular drainage component comprises a drainage tube, a guide wire is arranged in the drainage tube, the opening of the drainage tube is an internal thread opening, and an external thread head is arranged on the guide wire; a side hole is arranged below the drainage tube, a blind end is arranged at the bottom of the drainage tube, the blind end is of a solid structure, and an inverted cone-shaped recess is formed above the blind end; the scalp guide assembly includes a guide head and a guide rod.

Preferably, a longitudinal air duct is arranged on an internal thread opening of the drainage tube.

Preferably, guide head and guide rod are the arc form, and the front end of puncture head is conical thorn head, and guide head and guide rod pass through threaded connection, and the internal thread mouth department of guide rod is equipped with the breach for reserve the suture.

Preferably, the drainage tube is further provided with a fixed wing.

Preferably, the drainage tube is made of transparent materials, and an internal thread port of the drainage tube can be matched and connected with an external thread connector of the guide rod.

Preferably, the internal length of the drainage tube is slightly longer than the length from the guide wire head end to the proximal end of the external thread head.

Preferably, the side holes are distributed over the drain tube for a length of 1.5 cm.

Through the technical characteristics, the following beneficial effects can be obtained:

the utility model is suitable for an outer drainage of ventricle, the utility model discloses simple structure, the drainage tube mouth of pipe passes through helicitic texture with the seal wire, and the seal wire is arranged in the inverted cone of drainage tube bottom and is sunken, guarantees that the drainage tube head end is not bending deformation, the drainage tube is straight, guarantees simultaneously that the drainage tube has certain penetrability. The silk thread of drainage tube, the dual fixed of butterfly stationary vane more can prevent that the drainage tube slippage from rubbing not hard up.

The scalp guide assembly employs a guide head and a guide rod. The conical puncture head design at the front end of the puncture head can effectively reduce subcutaneous tissue damage; the double-arc design of the guide head and the guide rod can increase the subcutaneous sneak distance of the ventricular drainage tube; the unique notch design on the guide rod can better reserve the suture; the design can increase the safe placement time of the drainage tube and better realize the purpose of preventing intracranial infection and cerebrospinal fluid leakage.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic view of a ventricular drainage assembly.

Fig. 2 is a schematic view of a scalp guide assembly.

Fig. 3 is a schematic diagram of ventricular and scalp penetration.

FIG. 4 is a schematic view of a drain tube placed in the head.

Wherein:

1. a drainage tube; 2. a guide wire; 3. an external thread head; 4. a side hole; 5. the device comprises a handle, 6, an internal thread opening, 7, a guide rod, 8, a notch, 9, a guide head, 10, an air duct, 11, a blind end, 12 and a fixed wing.

Detailed Description

The invention will be further explained with reference to the drawings:

as shown in fig. 1-4, a ventricular drainage device comprises a ventricular drainage component and a scalp drainage component, wherein the ventricular drainage component comprises a drainage tube 1, a guide wire 2 is arranged in the drainage tube 1, a tube opening of the drainage tube 1 is an internal thread opening 6, and an external thread head 3 is arranged on the guide wire 2; a side hole 4 is arranged below the drainage tube 1, a blind end 11 is arranged at the bottom of the drainage tube 1, the blind end is of a solid structure, and an inverted cone-shaped recess is formed above the blind end; the scalp guide assembly includes a guide head 9 and a guide rod 7.

An air passage 10 is arranged on the internal thread port 6 of the drainage tube 1. The guide head 9 and the guide rod 7 are both arc-shaped, the guide head 9 and the guide rod 7 are connected through threads, and a notch 8 is arranged at an internal thread opening of the guide rod 7 and used for reserving a suture. The drainage tube 1 is also provided with a butterfly-shaped fixed wing 12. The drainage tube 1 is made of transparent materials, and an internal thread opening of the drainage tube is connected with an external thread connector of the guide rod 7 in a matched mode. The length of the side holes 4 distributed on the drainage tube 1 is 1.5 cm.

The utility model discloses a theory of operation and working process as follows:

as shown in figure 1, the external thread head on the guide wire is screwed into the pipe orifice of the internal thread structure of the drainage pipe 1, and the front end of the guide wire extends into the inverted cone-shaped recess above the blind end at the bottom of the drainage pipe, so that the head end of the drainage pipe is straight and not inclined, and the proper tightness of the drainage pipe is ensured. An air duct 10 is arranged on an internal thread port 6 of the drainage tube 1, side holes are arranged below the drainage tube, the length of the side holes 4 distributed on the drainage tube 1 is 1.5cm, and the specific operation is that a doctor places the front end of the drainage tube with a plurality of side holes in a ventricle.

As shown in figures 3 and 4, after the front end of the drainage tube is placed in the ventricle, the guide wire is taken out by rotating and taking down, the internal thread opening of the guide rod 7 is connected with the guide head 9, the external thread connector of the guide rod 7 is connected with the tube opening of the drainage tube, a doctor holds the guide rod of the guide assembly, and the guide head penetrates out of the subcutaneous tissue after diving in the subcutaneous tissue (the puncture distance is far as possible by utilizing the unique amplitude of the guide head and the guide rod). When the guide head completely penetrates out of the scalp, the guide head is taken down in a rotating mode, two threads are sewn on the scalp through a gap of the guide rod 7, one thread is used for fixing the drainage tube, the other thread is a reserved thread (used for closing a puncture channel after tube drawing), the specific method is that after the thread needs to pass through a gap 8 of the placement rod 7, the thread is picked out from the gap 8 again and placed outside the placement rod 7, when the placement rod 7 is continuously drawn out, the threaded end of the drainage tube 1 is guided out of the scalp, the side hole end of the drainage tube 1 is placed in a ventricle (shown in figure 4), the placement rod 7 is taken down in a rotating mode, a puncture outlet is tightened through the thread, and the drainage tube 1 is fixed. Then, the ventricular drainage tube 1 is sewn and fixed on the scalp by using the butterfly-shaped fixed wings, so that the drainage tube 1 cannot slide;

furthermore, in order to facilitate the observation of the operation, the drainage tube is made of transparent materials, and the external thread head 3 of the guide wire 2 is provided with an air duct, so that whether cerebrospinal fluid flows out or not can be observed conveniently during ventricular puncture.

Furthermore, in order to fix the drainage tube, a butterfly-shaped fixing wing is arranged on the drainage tube and sewed on the scalp, so that the problems of slippage and friction looseness of the drainage tube are solved.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The ventricular external drainage device is characterized by comprising a ventricular drainage component and a scalp guide component, wherein the ventricular drainage component comprises a drainage tube (1), a guide wire (2) is arranged in the drainage tube (1), the opening of the drainage tube (1) is an internal threaded opening (6), and an external threaded head (3) is arranged on the guide wire (2); a side hole (4) is arranged below the drainage tube (1), a blind end (11) is arranged at the bottom of the drainage tube (1), the blind end is of a solid structure, and an inverted cone-shaped recess is formed above the blind end; the scalp guiding assembly comprises a guiding head (9) and a guiding rod (7).

2. The extra-ventricular drainage device of claim 1, wherein: a longitudinal air duct (10) is arranged on the internal thread opening (6) of the drainage tube (1).

3. The extra-ventricular drainage device of claim 1, wherein: the guiding head (9) and the guiding rod (7) are both arc-shaped, the guiding head (9) and the guiding rod (7) are connected through threads, and a notch (8) is arranged at an internal thread opening of the guiding rod (7) and used for reserving a suture.

4. The extra-ventricular drainage device of claim 1, wherein: the drainage tube (1) is also provided with a butterfly-shaped fixed wing (12).

5. The extra-ventricular drainage device of claim 1, wherein: the drainage tube (1) is made of transparent materials, and an internal thread opening (6) of the drainage tube is connected with an external thread connector of the guide rod (7) in a matched mode.

6. The extra-ventricular drainage device of claim 1, wherein: the length of the side holes (4) distributed on the drainage tube (1) is 1.5 cm.

7. The extra-ventricular drainage device of claim 1, wherein: the internal length of the drainage tube (1) is slightly longer than the length from the head end of the guide wire (2) to the near end of the external thread head.