CN209033364U - A kind of retention type spinal cavity built-in - Google Patents

Abstract

The utility model discloses a kind of retention type spinal cavity built-ins, integral steel outer tube and needle core are assembled including lumbar puncture, and Biological silica gel inner sleeve, the inner sleeve head end peripheral wall is equipped with air bag, the side pipe of communicated air bags is opened up on inner sleeve tube wall, side pipe opening is located at the tail end of inner sleeve, is equipped with Biological silica gel check valve in the lumen of inner sleeve, check valve is unidirectionally opened to lumen tail end；Needle core is extracted in lumbar puncture afterwards in place, and inner sleeve penetrates in outer tube, until air bag is pierced by outer tube head end, the medium for swelling air bag from side pipe opening injection extracts outer tube, inner sleeve tail end connects Medical tee joint.Cerebrospinal fluid is carried out by threeway and surveys the follow-up works such as pressure, specimen taken, intrathecal administration, cerebrospinal fluid displacement, and one-time puncture realizes multinomial treatment operation, reduces doctor's workload, while mitigating patient suffering.

Description

A kind of retention type spinal cavity built-in

Technical field

The utility model relates to medical instruments fields, and in particular to a kind of retention type spinal cavity built-in.

Background technique

Examination of cerebrospinal fluid and intrathecal administration are left and taken in lumbar puncture, are the regular operations of multiple departments, hospital.Lumbar puncture It is higher to the technical level of doctor, sterility requirements, it is often completed by doctor with long years of standing and rich experience, and acute leukemia and arachnoid The patients such as cavity of resorption bleeding need to puncture progress intrathecal administration repeatedly or cerebrospinal fluid is set, and consume doctor's a large amount of time.Repeatedly Puncture also brings bad experience and body injury to patient.

Summary of the invention

The technical problem to be solved by the present invention is to provide a kind of retention type spinal cavity built-ins, after lumbar puncture Retain inner sleeve and connect tee tube, so that operation, the one-time punctures such as subsequent samples, administration, cerebrospinal fluid conversion realize multinomial treatment Operation reduces doctor's workload, while mitigating patient suffering.

The utility model is achieved through the following technical solutions:

A kind of retention type spinal cavity built-in assembles integral steel outer tube and needle core including lumbar puncture, It further include Biological silica gel inner sleeve, the inner sleeve head end peripheral wall is equipped with air bag, the side pipe of communicated air bags is opened up on inner sleeve tube wall, Side pipe opening is located at the tail end of inner sleeve, is equipped with Biological silica gel check valve in the lumen of inner sleeve, and check valve is to lumen tail end It is unidirectional to open；Needle core is extracted in lumbar puncture afterwards in place, and inner sleeve penetrates in outer tube, until air bag is pierced by outer tube head end, from side The medium that tube opening injection swells air bag, extracts outer tube.

The utility model is further improved scheme, and the outer tube wall of the inner sleeve is equipped with scale marker.Convenient for judgement Inner sleeve is inserted into the depth in outer tube.

The further improvement project of the utility model is that it is more than outer tube that the inner sleeve tail end outer wall, which is equipped with air bag, The alert flag of inner port.The flat-footed prompt inner sleeve of alert flag has inserted in place, and air bag reaches setting position.

The further improvement project of the utility model is that outer tube inner opening tip is equipped with slight bending radian.It can draw It leads and extends after inner sleeve is entered according to specified direction.

The utility model compared with prior art, has following obvious advantage:

The utility model inner sleeve after lumbar puncture can be detained in patient's body one week, and the air bag of protuberance is pressed in pulp cavity Inner sleeve is fixed in puncture orifice to be prevented from slipping, and cerebrospinal fluid is effectively prevent to leak through puncture orifice along lumen outer wall；It is raw in inner sleeve Object silica gel check valve is unidirectionally opened to lumen tail end, thus in the case where cerebrospinal pressure or syringe aspirate the suction function to be formed to Tail end is opened, and samples of CSF is left and taken, when tail end to avoid liquid to flow backwards because of closed check valve when liquid enters to pulp cavity and cause Infection in pulp cavity；And Biological silica gel check valve material have it is resistance to puncture self-closing characteristics repeatedly, when wanting the injection of medicine into pulp cavity When, thin puncture, which is connected, with syringe gos and buy Chinese medicine on the inside of needle-penetration check valve.Therefore demand different department is to cerebrospinal fluid puncturing Operation can properly settle samples of CSF indwelling, survey the work such as pressure, administration, displacement.

Detailed description of the invention

Fig. 1 is the utility model schematic cross-sectional view.

Specific embodiment

As shown in Figure 1, the utility model includes that lumbar puncture assembles integral steel outer tube 1 and needle core 2, also wrap Biological silica gel inner sleeve 3 is included, the 3 head end peripheral wall of inner sleeve is equipped with air bag 4, the side pipe of communicated air bags is opened up on 3 wall of inner sleeve 5, side pipe opening 51 is located at the tail end of inner sleeve 3, is equipped with Biological silica gel check valve 6 in the lumen of inner sleeve 3, check valve 6 to Lumen tail end is unidirectionally opened, and remains blocked state in another direction.The outer tube wall of the inner sleeve, which is equipped with, to be carved Scale knows 31, and red alert flag 32(or its that air bag is more than outer tube inner port are equipped on interior cannula end portion outer wall His eye-catching color).1 inner opening tip of outer tube is equipped with slight bending radian.

Concrete operations mode:

(1) doctor goes forward side by side the interspace of lumbar vertebrae that outer tube 1 and needle core 2 are pierced into patient together according to normal lumbar puncture process Enter up in pulp cavity, extract needle core 2, after confirmation has cerebrospinal fluid outflow, is slowly placed in inner sleeve 3 until scale prompt air bag 4 is already expired 1 inner port of outer tube；

(2) after confirmation inner sleeve 3 is in pulp cavity, swell air bag from side pipe opening 51 to micro- air bag 4 injection 2ml air, Closed side tube opening.Inner sleeve and outer tube are pulled together backward until the compressing of air bag 4 checks no brain in pulp cavity puncture orifice After spinal fluid extravasation, outer tube 1 is extracted completely；

(3) Medical tee joint pipe is connected, entire puncture process is completed；

(4) it is subsequent that cerebrospinal fluid survey pressure, specimen taken, intrathecal administration, cerebrospinal fluid displacement etc. can be carried out by tee tube Work；

(5) it after the whole that works, is open from side pipe and excludes air in air bag, can easily extract inner sleeve.

Claims (4)

1. a kind of retention type spinal cavity built-in assembles integral steel outer tube (1) and needle core including lumbar puncture (2), it is characterised in that: further include Biological silica gel inner sleeve (3), inner sleeve (3) the head end peripheral wall is equipped with air bag (4), inner sleeve The side pipe (5) of communicated air bags is opened up on pipe (3) wall, side pipe opening (51) is located at the tail end of inner sleeve (3), inner sleeve (3) Biological silica gel check valve (6) are equipped in lumen, check valve (6) is unidirectionally opened to lumen tail end.

2. a kind of retention type spinal cavity built-in according to claim 1, it is characterised in that: the inner sleeve (3) Outer tube wall is equipped with scale marker (31).

3. a kind of retention type spinal cavity built-in according to claim 1, it is characterised in that: inner sleeve (3) tail End outer wall is equipped with the alert flag (32) that air bag is more than outer tube inner port.

4. a kind of retention type spinal cavity built-in according to claim 3, it is characterised in that: outer tube (1) inner opening Tip is equipped with slight bending radian.