CN210698469U - Novel intracranial cerebrospinal fluid drainage tube - Google Patents

Abstract

The utility model discloses a novel intracranial cerebrospinal fluid drainage tube in the technical field of medical apparatus, the inner cavity of the drainage tube is transversely provided with a guide needle, the right side of the guide needle is extended through a luer connector and is arranged outside the right side of the drainage tube, the left side of the guide needle is connected with the left side of a drainage cavity, the right side of the guide needle is provided with a luer cap, the front end surface of the drainage tube is sequentially provided with scale marks from left to right, and the left side of the drainage tube is annularly provided with an external expanding structure; the advantage lies in making it fill out the tumour chamber through expanding the structure outward that expands in tumour excision initial stage, plays the effect that temporarily supports the occupy-place, can fix the drainage tube simultaneously and prevent to shift and deviate from, along with the drainage lasts and the in-process that brain tissue resets, the brain tissue extrusion expands the structure outward and makes its shrink, has elastic outer structure shrink of expanding and gathers together, expands the clearance between the structure outward and continuously exists simultaneously, and the drainage tube continuously keeps the drainage function, maintains the stability of intracranial pressure.

Description

Novel intracranial cerebrospinal fluid drainage tube

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a novel intracranial cerebrospinal fluid drainage tube.

Background

The ventricular drainage is to puncture the ventricles of brain through drilling skull, or to place the front end of drainage tube with several side holes in the ventricle of brain and connect one sterile drainage bag to drain cerebrospinal fluid to outside of the body. Is a common technical means of neurosurgery and a common treatment measure after craniocerebral operation. Aims to discharge the intracerebral hemorrhage, reduce the leakage of cerebrospinal fluid of wounds, reduce the intracranial pressure and prevent the occurrence of the cerebral hernia;

the most commonly used clinical is a single-tube single-cavity drainage tube, which is provided with a plurality of side holes for cerebrospinal fluid drainage. After the drainage tube is placed, the drainage tube is easy to shift or even separate in the continuous drainage process, so that the drainage is not smooth, and the nursing cost of doctors is increased. Meanwhile, after the tumor is removed in the operation of the tumor, a larger cavity is formed at the original tumor part aiming at the brain tumor patient after the operation, especially the patient with larger tumor volume. Because the brain tissue is extruded to cause brain tissue displacement in the long-term formation of the tumor, the brain tissue migrates to the cavity and displaces after the brain tumor is extirpated due to the loss of pressure on the brain tissue, and the capillary vessel is broken due to larger displacement or the functional nerve is damaged to cause permanent brain injury;

therefore, a novel intracranial cerebrospinal fluid drainage tube is provided, and is particularly suitable for cerebrospinal fluid drainage after tumor removal in a brain tumor operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel intracranial cerebrospinal fluid drainage tube to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel intracranial cerebrospinal fluid drainage tube, includes the drainage tube, the inner chamber of drainage tube sets up to the drainage chamber, the right side of drainage tube is provided with luer connector, and luer connector's left side extends the inner chamber right side that sets up at the drainage tube, the inner chamber of drainage tube transversely is provided with the guide needle, the right side of guide needle runs through luer connector and extends the setting outside the right side of drainage tube, and the left side of guide needle is connected with the left side in drainage chamber, the right side of guide needle is provided with luer block, the preceding terminal surface of drainage tube has set gradually the scale mark from a left side to the right side, the left side annular of drainage tube is provided with.

Preferably, expand the structure outward for following the many fossil fragments of circumferencial direction evenly distributed, and expand the structure outward and set up the left side at the drainage tube through the shaping of moulding in advance.

Preferably, the outer part of the external expanding structure can be wrapped with a porous saccule, and the surface of the porous saccule is uniformly provided with drainage holes

Preferably, the keels are provided with medicine injection holes in a penetrating mode.

Preferably, the top and the bottom of the inner cavity of the drainage tube can also be transversely provided with a medicine injection cavity, the right side of the drainage tube can also be communicated with a connecting seat, the right side of the connecting seat is communicated with a drainage branch, the top of the connecting seat is obliquely provided with a medicine injection branch, and the guide needle penetrates through the connecting seat and is connected with the drainage branch to be provided with a luer connector.

Preferably, the connecting seat sets up to three way connection, the top and the bottom of connecting seat all are provided with the fixed block, and all run through on the fixed block and be provided with the mounting hole.

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

1. the drainage tube has the advantages that the drainage tube expands outwards to fill a tumor cavity at the initial stage of tumor removal through the external expansion structure, so that the temporary supporting and occupying effect is achieved, the drainage tube can be fixed to prevent displacement and separation, the brain tissue extrudes the external expansion structure to shrink along with the continuous drainage and brain tissue reset processes, the elastic external expansion structure shrinks and gathers, gaps among the external expansion structures exist continuously, the drainage tube keeps the drainage function continuously, and the stability of intracranial pressure is maintained;

2. the external expanding structure at the tip of the drainage tube can enlarge the drainage hole and fix the drainage tube to prevent the drainage tube from falling off;

3. the external expansion structure can support the surrounding brain tissue and prevent the brain tissue from instantaneously losing support and collapsing to cause cerebral hemorrhage or brain injury;

4. the medicine injection holes on the external expanding structure can realize uniform medicine administration or normal saline flushing around the external expanding structure, so that the medicine is fully contacted with hematoma, and the efficacy of the medicine is fully exerted;

5. the external expanding structure is added with the elastomer, so that the external expanding structure can be opened naturally in vivo by elasticity, and brain tissue damage caused by excessive manual opening is prevented;

6. the scales on the drainage tube show whether the outward expanding structure can be observed to be completely opened;

7. the contact area of porous sacculus structure increase and surrounding tissue, the colleague of effective support increases drainage hole quantity, and drainage efficiency is improved in multi-direction drainage hole.

Drawings

FIG. 1 is a diagram: the utility model has a schematic structure;

FIG. 2 is a diagram of: the utility model is a schematic drawing of the expanding structure of the external expanding structure;

FIG. 3 is a diagram of: the structure of the drainage tube inserted into the brain of the utility model is schematically shown;

FIG. 4 is a diagram of: the utility model discloses a schematic drawing of the open structure of the drainage tube inserted into the brain external dilating structure;

FIG. 5 is a diagram: the utility model discloses a skeleton structure schematic diagram of an external expanding structure keel;

FIG. 6 is a diagram of: the structure of the external expanding structure and the porous saccule of the utility model is schematically shown;

FIG. 7 is a diagram of: the utility model discloses add connecting seat structure sketch.

In the figure: 1. a drainage tube; 10. a guide needle; 101. a luer cap; 11. an outward expansion structure; 111. a keel; 112. a porous balloon; 113. a drainage hole; 114. a drug injection hole; 12. a luer fitting; 13. a drainage lumen; 14. scale lines; 15. a medicine injection cavity; 16. a connecting seat; 17. a drainage branch; 18. and (5) branch of medicine injection.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Detailed Description

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

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a novel intracranial cerebrospinal fluid drainage tube, including drainage tube 1, drainage tube 1 is single tube single chamber polymer tubular product, the inner chamber of drainage tube 1 sets up to drainage chamber 13, the right side of drainage tube 1 is provided with luer 12, and the left side of luer 12 extends and sets up on the inner chamber right side of drainage tube 1, the inner chamber of drainage tube 1 transversely is provided with guide needle 10, the right side of guide needle 10 runs through luer 12 and extends the setting outside the right side of drainage tube 1, and the left side of guide needle 10 is connected with the left side of drainage chamber 13, the right side of guide needle 10 is provided with luer block 101, the preceding terminal surface of drainage tube 1 has set gradually scale mark 14 from a left side to the right side, the left side of drainage tube 1 annular is.

Wherein: the external expansion structure 11 is a plurality of keels 111 which are uniformly distributed along the circumferential direction, the external expansion structure 11 is arranged on the left side of the drainage tube 1 through pre-molding, and when one end of the drainage tube 1 is implanted into a tumor cavity through a skull drill hole, the external expansion structure plays a supporting role;

the outside of the external expanding structure 11 can also be wrapped with a porous balloon 112, and drainage holes 113 are uniformly formed in the surface of the porous balloon 112, so that the drainage efficiency can be improved by the arranged porous balloon 112;

the keel 111 can be provided with drug injection holes 114 in a penetrating way, and the drug injection holes 114 can disperse and deliver drug to the periphery, so that the drug is in full contact with peripheral hematoma or tissues, and the drug effect is improved;

a medicine injection cavity 15 can be transversely arranged at the top and the bottom of the inner cavity of the drainage tube 1, a connecting seat 16 can be communicated with the right side of the drainage tube 1, a drainage branch 17 is communicated with the right side of the connecting seat 16, a medicine injection branch 18 is obliquely arranged at the top of the connecting seat 16, and the guide needle 10 penetrates through the connecting seat 16 and is connected with the drainage branch 17 to be provided with a luer connector 12;

connecting seat 16 sets up to three way connection, and connecting seat 16's top and bottom all are provided with the fixed block, and all run through on the fixed block and be provided with the mounting hole, be convenient for install and be connected.

The working principle is as follows: the drainage tube 1 is a single-tube single-cavity polymer tube, the head end of the drainage tube 1 is designed with an external expansion structure 11, the external expansion structure 11 is a plurality of keels 111 uniformly distributed along the circumferential direction, the number of the keels is at least 3, the external expansion structure 11 is the external expansion structure 11 in figure 2 through pre-plasticity, the tip end of the drainage tube 1 is pushed open by a guide needle 10, the tip end can be contracted into the structure 11 in figure 1, and then the luer connector 12 at the tail end of the drainage tube 1 and the luer cap 101 at the tail end of the guide needle 10 are screwed and fixed, at the moment, the maximum outer contour of the contracted external expansion structure 11 is the same as the outer diameter of the main body structure of the drainage tube 1;

after tumor is extirpated through neuroendoscopy or microsurgery, as shown in fig. 3, the drainage tube 1 is implanted into a tumor cavity through skull drilling, at the moment, the luer cap 101 at the tail of the guide needle 10 is kept locked with the luer 12 at the tail of the drainage tube 1, after the drainage tube 1 is implanted in place, the luer cap 101 is unscrewed to be disengaged from the luer and prop against the guide needle 10, the outward expansion structure 11 of the drainage tube 1 expands and expands under the elastic action of high polymer materials, as in the state of the outward expansion structure 11 in fig. 4, then the drainage needle 10 is withdrawn, after the outward expansion structure 11 is completely opened, the scale on the drainage tube corresponding to the skull changes along with the shortening of the drainage tube, and whether the outward expansion structure 11 is completely opened or not can be judged according to the scale change value;

after the external expanding structure 11 of the drainage tube 1 is opened as the structure in fig. 4, the gap between the external expanding structures 11 is communicated with the drainage cavity 13, cerebrospinal fluid can flow through the drainage cavity 13 through the gap between the external expanding structures 11, then is discharged out of the body through the luer 12 and is collected in an in-vitro sterile drainage bag;

in the continuous drainage process, the brain tissue can slowly retract and reset along with time, the original tumor cavity is filled, the brain tissue around the tumor cavity can extrude the outward-expanding structure 11, when the brain tissue around the tumor cavity is completely reset, the drainage tube 1 can be extruded by the brain tissue to be in a state shown in figure 3, and then according to the drainage condition of the cerebrospinal fluid of a patient, an operator judges whether further drainage or tube drawing is needed.

The first embodiment is proposed with reference to fig. 1 to 5:

according to the structure in the technical scheme, the external expansion structure in fig. 2 is improved as shown in fig. 4, the keel 111 is added to the external expansion structure 11, the keel 111 is formed by weaving nickel-titanium wires or elastic stainless steel wires and other elastic materials, high polymer materials are wrapped outside the keel, the structure shown in fig. 4 is formed in a shaping mode in the manufacturing process, and the external expansion structure 11 can be folded into the structure of the external expansion structure 11 in the figure through the guide needle 10 in fig. 1 by means of the elasticity of the keel 111;

increase fossil fragments 111 and can realize expanding effective support of structure 11 to the brain tissue outward in expanding structure 11 outward, simultaneously, when receiving the extrusion, because the extension of drainage tube 1 can be drawn in by the oppression, expand structure 11 outward and effectively open and to guarantee to expand the clearance between structure 11 outward simultaneously to the support that the brain tissue lasts around the tumour chamber and increase, can guarantee that cerebrospinal fluid leads out through the clearance is smooth and easy, and then maintains the stability of intracranial pressure.

With reference to the second embodiment of fig. 1 to 6:

in fig. 5, the flaring structure 11 is composed of a porous balloon 112 and a supporting keel 111, the porous balloon 112 is made of a soft elastic polymer material, such as but not limited to silica gel, latex, etc., the surface of the porous balloon 112 is provided with a plurality of drainage holes 113, the supporting keel 111 is made of an elastic metal material, such as but not limited to nickel-titanium wire, stainless steel wire, etc., and is pre-molded to form the shape of the flaring structure 11 in fig. 5;

in the embodiment, the use process of the drainage tube 1 is basically consistent with that of the scheme, after the assembly of the guide needle 10 and the drainage tube 1 is completed, the drainage tube 1 is stretched, the external expanding structure 11 is folded, after the puncture is completed, the guide needle 10 is released, the external expanding structure 11 is expanded and opened under the elastic action of the support keel 111 to support the porous saccule 112 on the surface, and the drainage hole 113 on the surface of the porous saccule 112 is opened to point to each direction, so that the drainage efficiency is improved;

expand structure 11 outward and strut porous sacculus 112 under the effect of supporting fossil fragments 111 and support tumor chamber surrounding brain tissue, the porous sacculus 112 on surface can increase and the area of contact of surrounding tissue, do not influence the drainage simultaneously again, traditional sacculus must have independent sacculus chamber and be full of liquid or gas, under the condition of equal intervention diameter, drainage chamber 13 size must be limited, and full porous sacculus 112 must avoid the sacculus position, lead to drainage hole 113 can't be located the tumor chamber, influence the drainage effect.

With reference to the third embodiment of fig. 1 to 7:

the ventricular tumors are accompanied by intracranial infection or purulent cerebrospinal fluid, and the conventional drainage is difficult to control the intracranial infection, so the drainage tube 1 in figure 6 is provided on the basis of the original embodiment.

The drainage tube 1 is a single-tube multi-cavity structure and is provided with a drainage cavity 13 and a plurality of medicine injection cavities 15 (flushing cavities), the external expanding structure 11 at the tip is preferably one of the above embodiments, the number of the external expanding structure 11 is the same as that of the medicine injection cavities 15, medicine injection holes 114 are formed in the outer side of the external expanding structure 11, the medicine injection holes 114 are communicated with the medicine injection cavities 15 and are in one-to-one correspondence, a gap between the drainage cavity 13 and the external expanding structure 11 is communicated, the drainage cavity 13 and the medicine injection cavity 15 are separated at a connecting seat 16 and are respectively communicated with a drainage branch 17 and a medicine injection branch 18, and the drainage branch 17 is connected with an external sterile drainage bag through a luer 12.

In the continuous drainage process, the drainage cavity 13 and the drug injection cavity 15 are independent from each other, so that continuous perfusion administration can be performed on a tumor cavity or a hematoma part, and the drug injection holes 114 on the outer side of the externally expanding structure 11 can disperse the drug administration to the periphery, so that the drug is in full contact with the peripheral hematoma or tissues, and the drug effect is increased.

The external expanding structure 11 can effectively fix the drainage tube 1 to prevent the drainage tube from falling off and can support the brain tissue around the tumor cavity at the same time, thereby avoiding postoperative complications such as cerebral hemorrhage, brain tissue injury and the like caused by excessive displacement of the brain tissue.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

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

Claims (6)

1. The utility model provides a novel intracranial cerebrospinal fluid drainage tube, includes drainage tube (1), its characterized in that: the inner cavity of drainage tube (1) sets up to drainage chamber (13), the right side of drainage tube (1) is provided with luer connector (12), and the left side of luer connector (12) extends and sets up on the inner cavity right side of drainage tube (1), the inner cavity of drainage tube (1) transversely is provided with guide needle (10), the right side of guide needle (10) runs through luer connector (12) and extends the setting outside the right side of drainage tube (1), and the left side of guide needle (10) is connected with the left side of drainage chamber (13), the right side of guide needle (10) is provided with luer cap (101), the preceding terminal surface of drainage tube (1) has set gradually scale mark (14) from a left side to the right side, the left side ring shape of drainage tube (1) is provided with outer expanding structure (11).

2. A novel intracranial cerebrospinal fluid drainage tube as claimed in claim 1, wherein: expand structure (11) outward for along circumferencial direction evenly distributed with fossil fragments (111) more, and expand structure (11) outward and set up the left side at drainage tube (1) through the shaping of moulding in advance.

3. A novel intracranial cerebrospinal fluid drainage tube as claimed in claim 1, wherein: the outer part of the external expanding structure (11) can also be wrapped with a porous saccule (112), and drainage holes (113) are uniformly formed in the surface of the porous saccule (112).

4. A novel intracranial cerebrospinal fluid drainage tube as claimed in claim 2, wherein: the keels (111) can be provided with medicine injection holes (114) in a penetrating mode.

5. A novel intracranial cerebrospinal fluid drainage tube as claimed in claim 1, wherein: the top and the bottom of an inner cavity of the drainage tube (1) can also be transversely provided with a medicine injection cavity (15), the right side of the drainage tube (1) can also be communicated with a connecting seat (16), the right side of the connecting seat (16) is communicated with a drainage branch (17), the top of the connecting seat (16) is obliquely provided with a medicine injection branch (18), and the guide needle (10) penetrates through the connecting seat (16) and is connected with the drainage branch (17) to be provided with a luer connector (12).

6. The novel intracranial cerebrospinal fluid drainage tube as claimed in claim 5, wherein: the connecting seat (16) is arranged to be a three-way joint, the top and the bottom of the connecting seat (16) are provided with fixing blocks, and the fixing blocks are provided with mounting holes in a penetrating mode.

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