CN110496299A - A kind of double channel catheter for Persistent Csf purification treatment - Google Patents
A kind of double channel catheter for Persistent Csf purification treatment Download PDFInfo
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- CN110496299A CN110496299A CN201910749265.4A CN201910749265A CN110496299A CN 110496299 A CN110496299 A CN 110496299A CN 201910749265 A CN201910749265 A CN 201910749265A CN 110496299 A CN110496299 A CN 110496299A
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- pipeline section
- intrathecal
- outer segment
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- tubulature
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3478—Endoscopic needles, e.g. for infusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
- A61B5/031—Intracranial pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
- A61B5/036—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs by means introduced into body tracts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—Catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0054—Catheters; Hollow probes characterised by structural features with regions for increasing flexibility
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0082—Catheter tip comprising a tool
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M2025/0001—Catheters; Hollow probes for pressure measurement
- A61M2025/0002—Catheters; Hollow probes for pressure measurement with a pressure sensor at the distal end
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
- A61M2025/0046—Coatings for improving slidability
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Abstract
The present invention relates to the medical supplies fields of cavum subarachnoidale conduit, specifically for a kind of long short double channel catheter.The present invention includes long duct and tubulature；The long duct is successively made of intrathecal extension pipeline section, the first intrathecal pipeline section and the first skin outer segment from front to back, the intrathecal front end for extending pipeline section is equipped with head end brain temperature probe and monitoring intracranial pressure probe, the head end brain temperature probe is embedded at intrathecal extension pipeline section front end surface, and the monitoring intracranial pressure probe is embedded inside the intrathecal tube wall for extending pipeline section front end；The rear end of the first skin outer segment is equipped with first pipe connector and the first pipe clamp, and the first pipe connector is arranged at the first skin outer segment rear end face, and first pipe clamp is arranged on the pipeline section of the first skin outer segment rear end.The present invention, which can establish, can utmostly control the dynamic (dynamical) cerebrospinal purification access of cerebrospinal fluid circulation.
Description
Technical field
The present invention relates to the medical supplies fields of cavum subarachnoidale conduit, specifically for a kind of long short double channel catheter.
Background technique
Lumbar puncture art is that intracranial disease diagnosis and cerebrospinal fluid management treatment are most normal in a neural clinical application nearly century
Operation and earliest cerebrospinal purification and management means.So far, cavum subarachnoidale drainage catheter majority is single-chamber
Conduit；A small number of its two-chamber of double channel catheter openings is also similar to that two-chamber ductus venosus is such, and two lumen front openings are apart
It is close, even same opening, such as the IRRAS-flow cerebrospinal fluid displacement system in the newest listing of China in 2019.It is above two
Conduit is when carrying out Cerebrospinal Fluid Displacement in Treatment, since the flowing of cerebrospinal fluid itself is slow, cerebrospinal fluid is caused to repeat at the position Yao Chi
Displacement, and the cerebrospinal fluid in cranial cavity is influenced less, to cause the efficiency of cerebrospinal purification seriously low.
It was noticed that human body cerebrospinal fluid capacity about 100-150ml, ventricular system capacity about 30-40ml, cerebrospinal fluid are big
Part is present in cavitas subarachnoidealis spinalis and brain pond.Cerebrospinal fluid is most of to flow through each ventricular system by choroid plexus of lateral ventricle generation
It is discharged into cavum subarachnoidale from fourth ventricle hole, this position is exactly cisterna magna, under the arachnoid for thus having started cerebrospinal fluid
Chamber circulation, a part is through cerebellopontine cistern, oblongata forebay forward through interpeduncular cistern, cisterna ambiens toward chiasmatic cistern, cistern of lateral sulcus, preceding vertical
Split pond flowing；Another part flows to waist pond through long and narrow cavitas subarachnoidealis spinalis.
Under physiological status, cerebrospinal fluid is under the pulsed power of the offers such as breathing, somatic movement, the easypro contracting movement of brain arteriovenous
Form recycle stream and concussion two kinds of forms of motion of stream.On the way by the artery and vein vascular peripheral clearance of disengaging cranium, spinal nerve and cranium mind
Periphery lymphatic vessel is drained into through structures such as peripheral clearance, arachnoid villis, completes outer circulation；Cerebrospinal fluid is entered cerebral artery week simultaneously
It encloses gap and enters brain tissue gap and metabolic waste is mixed and taken away with interstitial fluid, gone out cerebral veins, venae cerebri peripheral clearance and returned under arachnoid
Chamber completes the interior circulation of cerebrospinal fluid.So the purification management of cerebrospinal fluid should be able to achieve it is dynamic (dynamical) to cerebrospinal fluid circulation whole
Body is controlled, and can be only achieved ideal clean-up effect.Cisterna magna is the initial part that cerebrospinal fluid is recycled in cavum subarachnoidale, and
The key node of cerebrospinal purification intervention.
Human body cavum subarachnoidale, which is one, surrounds spinal cord, and the long and narrow lacuna full of cerebrospinal fluid, mean breadth is in 2-3.5mm
Between, neck myelomere section space is most narrow.Cavitas subarachnoidealis spinalis and spinal cord and its vascular surface are across one layer of pia mater, wherein depositing
In the spinal nerve root of criss-cross archnoid trabecula and row, the blood supply of spinal cord is concentrated mainly on two sides and front side, spinal cord dorsal
The blood vessel traveling of section is less.Waist pond is the dissection distal end of cavitas subarachnoidealis spinalis, lacks spinal cord structure, is the first choice of puncture and intubation
Safe location.
It can be seen that can be realized through lumbar puncture by suitable conduit and corresponding tube indwelling technology along spinal cord dorsal
Section cavum subarachnoidale, near the long head end indwelling to cisterna magna of conduit, brachycephaly end indwelling to waist pond, to realize that cerebrospinal fluid is dynamic
The maximization of mechanics utmostly controlled with purification efficiency.However a cavum subarachnoidale conduit device there is no to be able to achieve at present
Above-mentioned effect.
Summary of the invention
First invention purpose of the invention is: providing a kind of external two-chamber for Persistent Csf purification treatment and leads
Pipe, foundation can utmostly control the dynamic (dynamical) cerebrospinal purification access of cerebrospinal fluid circulation, so that it is complicated to be suitable for encephalic situation
Acute nervous system sick people short-term cerebrospinal purification treatment or intrathecal administration treatment.
Second goal of the invention of the invention is: providing a kind of Implanted type double-cavity for Persistent Csf purification treatment and leads
Pipe, foundation can utmostly control the dynamic (dynamical) cerebrospinal purification access of cerebrospinal fluid circulation, while device being implanted into subcutaneously, thus
Suitable for the metastable chronic forms immunity disease of encephalic situation or neurodegenerative disease crowd need Chronic Intermittent into
Row cerebrospinal purification or intrathecal administration treatment.
First invention purpose of the present invention is achieved through the following technical solutions: a kind of for the outer of Persistent Csf purification treatment
Set formula double channel catheter, it is characterised in that: including long duct and tubulature；
The long duct is successively made of intrathecal extension pipeline section, the first intrathecal pipeline section and the first skin outer segment from front to back, institute
It states the intrathecal front end for extending pipeline section and is equipped with head end brain temperature probe and monitoring intracranial pressure probe, the head end brain temperature probe is embedded
At intrathecal extension pipeline section front end surface, the monitoring intracranial pressure probe is embedded in the intrathecal tube wall for extending pipeline section front end
Portion；The rear end of the first skin outer segment is equipped with first pipe connector and the first pipe clamp, the first pipe connector setting
At the first skin outer segment rear end face, first pipe clamp is arranged on the pipeline section of the first skin outer segment rear end；
The tubulature is successively made of the second intrathecal pipeline section and the second skin outer segment from front to back, before the second intrathecal pipeline section
Tail end brain temperature probe is arranged with outside portion, the rear end of the second skin outer segment is equipped with second pipe connector and the second pipe clamp,
The second pipe connector is arranged at the second skin outer segment rear end face, and second pipe clamp is arranged after the second skin outer segment
On the pipeline section of end.
Second goal of the invention of the invention is achieved through the following technical solutions: a kind of plant for Persistent Csf purification treatment
Enter formula double channel catheter, it is characterised in that: store pre-embedded device including long duct, tubulature and subcutaneous cerebrospinal fluid；
The long duct is successively made of intrathecal extension pipeline section, the first intrathecal pipeline section and the first subcutaneous pipeline section from front to back；Institute
Tubulature is stated successively to be made of the second intrathecal pipeline section and the second subcutaneous pipeline section from front to back.
The subcutaneous cerebrospinal fluid stores the Ommayya that pre-embedded device includes silica gel substrate and is arranged on silica gel substrate
Capsule；The inside of the Ommayya capsule have the first liquid storage chamber and the second liquid storage chamber, the rear end of the first subcutaneous pipeline section with
The connection of first liquid storage chamber, the rear end of the second subcutaneous pipeline section is connected to the second liquid storage chamber.
Set pipe operating process:
Pre-operational check:
Brain and spinal MRI image and cerebrospinal fluid phase images inspection, exclude that tumor in vertebral canal, disc herniation be narrow, spinal cord blood vessel
Lesion, chiari deformity, spinal cord injury etc. cause cavum subarachnoidale access stenosis or obstruction, understand cerebrospinal fluid under arachnoid
The dynamics state of chamber.
Pipe is set in the operation of the room DSA:
1, patient lies on one's side knee chest position on DSA bed, determining body puncture site, measures near puncture site to C1 or C2 spinous process
Body surface distance selects the conduit specification of appropriate length, and (i.e. one kind is used for according to therapeutic purposes and crowd's selection external conduit
The external double channel catheter of Persistent Csf purification treatment) or implanted conduit it is (i.e. a kind of to be used for Persistent Csf purification treatment
Implanted type double-cavity conduit).
2, it takes out selected conduit and 0.014 " micro-wire is immersed in the lubrication for carrying out hydrophilic coating in physiological saline；External
Conduit needs to connect each data connector to corresponding instrument and equipment, and a step calibration of going forward side by side checks intracranial pressure probe and temp probe.
Implanted conduit will connect Ommayya capsule in advance, puncture and fill the water through capsule, observe the airtightness and catheter lumen patency of capsule.
3, lumbar puncture needle punctures waist pond and extracts needle core afterwards in place, and the long lumen of conduit is inserted in 0.014 " micro-wire and enters under arachnoid
Chamber.
4, under DSA monitoring, slowly rotation push micro-wire moves ahead along back side cavitas subarachnoidealis spinalis, and conduit head end is gradually
Follow-up.Reach the intrathecal extension pipeline section front end of conduit near C1 centrum, while the second intrathecal pipeline section front end of tubulature is located at
Waist pond near L1-L3 centrum.Slowly extraction seal wire, allows cerebrospinal fluid voluntarily to flow out, then manually cerebrospinal fluid equivalent rinses suction
Stopped pipe chamber is pressed from both sides after two tail end of conduit.It is fixed outside externally positioned type conduit row draining hole dressing covering, conduit.Implanted conduit after
It is continuous to carry out subsequent step.
5, implanted conduit is implanted into subcutaneous process, needs first to do the horizontal type skin incision of a 3cm (according to surplus in middle flank wall
Remaining catheter length selected location), silica gel substrate is enough accommodated to notch side separation subcutaneous space, is placed in subcutaneous cerebrospinal fluid storage dress
It sets.
6, point of puncture skin about 1cm is cut, is penetrated with hypodermic tunnel bar from point of puncture, is subcutaneously moved under water to side incision of abdominal wall and wear
Skin out, guidance implanted catheter tail reach side incision of abdominal wall along hypodermic tunnel.
7, cut extra subcutaneous pipeline section, by the rear end of the first intrathecal pipeline section and the second subcutaneous pipeline section respectively with two Ommayya
The tight-lipped close connection of capsule connecting tube, is connected to so that it is respectively corresponded with the first liquid storage chamber and the second liquid storage chamber, row merging
Subcutaneously, by veutro end be cerebellum pond capsule, backrest side is waist pond capsule.Two Ommayya capsule equivalent are punctured respectively with two pieces of L-type needles to take out
Inhaling lavation artificial cerebrospinal fluid ensures unobstructed, sutures each notch, wraps up.
For better implementation this programme, following prioritization scheme is also provided:
Further, set pipe for convenience: the first intrathecal pipeline section and the second intrathecal pipeline section described in external conduit are along extending direction
Integral type is joined together to form two-chamber tube body；First intrathecal pipeline section described in implanted conduit and the second intrathecal pipeline section are along extension
Direction integral type is joined together to form two-chamber tube body.The shape of the two-chamber tube body cross section is circle, the first sheath inner tube
The cross section of section lumen is mososeries, and the cross section of the second intrathecal pipeline section lumen is ellipse.
Further, subcutaneously set pipe in order to facilitate implanted conduit: the first subcutaneous segment is individually formed with the second subcutaneous pipeline section
Circular tube chamber and shape, the two are close to parallel, between there is portion outer layer to be adhered to form one, can be torn it from pipe tail end point
From convenient for forming an entirety when subcutaneous guidance is moved under water.
Further, set pipe for convenience: the second intrathecal pipeline section head end is wedge-shaped nozzle.
Further, drain for convenience: the second intrathecal pipeline section head end side wall is provided with several side openings.
Further, walk to be conducive to seal wire with drug conveying: the conduit is made of polyethylene, and applies hydrophilic painting outside
Layer.
Further, in order to enhance the flexibility of pipeline, collapse while meet conduit whole development at DSA, in pipe
There are one layer of nickel-titanium memory woven wire cloths inside the tube wall of body.
Further, for the crucial encephalic physics parameter such as more perfect ground intracranial pressure, temperature, safety purification is instructed
Treatment.The intrathecal extension tube near ports of external conduit are provided with temperature sensor and pressure sensor, in the second sheath inner segment
Pipe port is nearby provided with temperature sensor.
Than before for technology, the invention has the benefit that
1, the present invention passes through the design of length double channel catheter, separates double channel catheter mouth to the greatest extent, in cerebrospinal purification mistake
It realizes that cerebrospinal fluid circulation is dynamic (dynamical) in journey utmostly to control, effectively improves purification efficiency；
2, brain temperature and the real-time monitoring of cerebral are that the purification treatment of safety escorts；
3, the different tube diameters design of conducting pipes: irrigation lumen is less than normal, and the intracavitary flow velocity of perfusion improves, and mentions for the flowing of cerebrospinal fluid
For power；Drainage tube chamber is bigger than normal, and nozzle wedge-shaped design and side opening design farthest avoid the possibility of pipeline blockage；
4, the nitinol alloy wire mesh grid of pipe inner wall effectively keeps flexibility, collapse and the whole developability of conduit；
The hydrophilic coating of outer layer, the resistance of walking for utmostly reducing conduit when setting pipe are damaged with pipe is set.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1；
Fig. 2 is A-A cross-sectional view in Fig. 1；
Fig. 3 is B-B cross-sectional view in Fig. 1；
Fig. 4 is the structural schematic diagram of embodiment 2；
Fig. 5 is that subcutaneous cerebrospinal fluid stores pre-embedded device structural schematic diagram；
Fig. 6 is C-C cross-sectional view in Fig. 5.
Label declaration: intrathecal extension pipeline section 111- head end brain temperature probe the first temperature data of the 1111- crossover sub of 11-
112- monitoring intracranial pressure probe 1121- pressure data crossover sub
Intrathecal the first skin of the pipeline section 13- outer segment 131- first pipe connector of 12- first
The intrathecal pipeline section of the first subcutaneous pipeline section 21- second of the first pipe clamp of 132- 14-
211- tail end brain temperature probe 2111- second temperature data conversion connector
212- wedge shape nozzle 213- side opening
22- the second skin outer segment 221- second pipe connector the second pipe clamp of 222-
The subcutaneous pipeline section 31- silica gel substrate 32-Ommayya capsule of 23- second
321- the first liquid storage chamber 322- the second liquid storage chamber 4- nitinol alloy wire woven mesh layer.
Specific embodiment
Illustrate to elaborate to the present invention with reference to the accompanying drawing:
Embodiment 1:
As shown in Figure 1-3, the present embodiment is a kind of external double channel catheter for Persistent Csf purification treatment, including length is led
Pipe and tubulature；Long duct and tubulature are guided, the front end of long duct is along spinal cord spider web under DSA monitoring by micro-wire
Hypostegal cavity is sent to C1 centrum, close to cisterna magna；The front end of tubulature is located at the waist pond near L1-L3 centrum.
Long duct material feature relevant to tubulature is: the long duct and tubulature are by polythene material system
At outer layer is coated with hydrophilic coating, and there be one layer of nitinol alloy wire woven mesh layer 4 in centre, and temperature and cranium pressure data line traveling are in wall
The outside of Nitinol woven mesh layer 4.Become very smooth after hydrophilic coating Catheter wetting, can effectively reduce the resistance walked and rub
It wipes, reduces damage, and histocompatbility is good, does not cause inflammation to be adhered.Polythene material and nitinol alloy wire woven mesh structure
Make that pipe shaft has both flexibility and elasticity is easy to walk, is not easy to expand or collapse, and whole x-ray development.
The long duct is from front to back successively by intrathecal extension pipeline section 11, the first intrathecal pipeline section 12 and the first skin outer segment
13 compositions, the intrathecal front end for extending pipeline section 11 are equipped with head end brain temperature probe 111 and monitoring intracranial pressure probe 112, institute
It states head end brain temperature probe 111 to be embedded at intrathecal 11 front end surface of extension pipeline section, akrencephalon temperature probe 111 is a circular tube here
Mouthful of one week metal brain temperature probe, while mark and nozzle anti-collapse support of the metal brain temperature probe also with DSA development is sunken
Effect, data line moves under water on the outside of tube wall nitinol alloy wire woven mesh layer 4 is pierced by tube wall to the tail portion of tube body, outside data line wall
The tail portion of extension is provided with the first temperature data crossover sub 1111；
The monitoring intracranial pressure probe 112 is embedded inside the intrathecal tube wall for extending 11 front end of pipeline section, the intracranial pressure prison
Probing head 112 is embedded in the outer wall away from intrathecal extension 11 front end pipe end 2cm of pipeline section or so, here monitoring intracranial pressure
The practical pressure chip for the covering of one piece of film of probe 112, for continuing to monitor the intracranial pressure near cisterna magna, approximate generation
Table intracranial pressure is horizontal, and data line moves under water on the outside of nitinol alloy wire woven mesh layer 4 in tube wall and is pierced by tube wall to pipe tail portion, number
The tail portion of extension outside line wall is provided with pressure data crossover sub 1121.Monitoring intracranial pressure probe 112 is thin using RFP
Membrane pressure sensor, model RFP-602；
The rear end of the first skin outer segment 13 is equipped with first pipe connector 131 and the first pipe clamp, and the first pipe connects
First 131 are arranged at 13 rear end face of the first skin outer segment, and 13 rear end of the first skin outer segment is arranged in first pipe clamp
On pipeline section；
The tubulature is successively made of the second intrathecal pipeline section 21 and the second skin outer segment 22 from front to back, the second intrathecal pipeline section
21 front ends are equipped with wedge-shaped nozzle 212, which is in oblique oval cross section, realize that sectional area maximizes, increase simultaneously
Pipe shaft is streamlined；
Tail end brain temperature probe 211 is embedded on the front end of second intrathecal pipeline section 21, tail end brain temperature probe 211 is away from oblique section
At 2cm, tail end brain temperature probe 211 is have a circle metal brain temperature to pop one's head in around the second subcutaneous 21 tube wall periphery of pipeline section, while the gold
Belong to the effect that brain temperature probe is also fallen into as the mark and lumen anti-collapse support of DSA development, brain temperature data line is dived along wall of the lumen
Row to pipe tail portion is pierced by tube wall, and the tail portion of the outer extension of data line wall is provided with second temperature data conversion connector 2111, in brain
Several side openings 213 have been casually arranged on the pipeline section tube wall at 3cm after temperature probe, have reduced blocking probability.Here, head end brain temperature is popped one's head in
111 and tail end brain temperature probe 211 be all made of K-type thermocouple temperature probe.
The rear end of the second skin outer segment 22 be equipped with second pipe connector 221 and the second pipe clamp 222, described second
Pipe joint 221 is arranged at 22 rear end face of the second skin outer segment, and second pipe clamp 222 is arranged in the second skin outer segment 22
On the pipeline section of rear end；
First skin outer segment 13 and the second skin outer segment 22 are two independent conduits, and length is fixed as 20cm, metal brain temperature
The data line of probe extends out from wall-through from the first skin outer segment 13, the second position of the skin outer segment 22 away from bifurcation 5cm, cranium
The data line of inspection of inner pressure probe 112 extends out from the first skin outer segment 13 away from wall-through from bifurcation 10cm, in two pipe data
The pipe clamp that pipeline section after line extended segment between pipe end calparine cap is set respectively is for pressing from both sides stopped pipe chamber.
The first intrathecal pipeline section 12 and the second subcutaneous pipeline section 21 prolong extending direction integral type and are joined together to form two-chamber
Tube body.
The section feature of the present embodiment conduit are as follows: the intrathecal lumen section for extending pipeline section 11 is rounded, outer diameter about 0.91mm,
Internal diameter about 0.71mm.The whole cross-sectional profile of two-chamber body portion is rounded, outer diameter about 2.5mm, thickness of pipe wall about 0.2mm；Two
A lumen is separated by separation beam, and the cross section of first intrathecal 12 lumen of pipeline section is mososeries, second hypodermic tube
The cross section of 21 lumens of section is ellipse, and two lumen sectional area ratios are 2:1.Although the cross sectional shape of the first intrathecal 12 lumen of pipeline section
It changes but sectional area remains unchanged.Separate the thickness about 0.2mm of beam；Specific position distinguishes traveling pressure and temperature in tube wall
Data line, the external conduit caliber of child form are accordingly more adult partially thin.
The specification of the present embodiment are as follows: external pipe size specification in the present embodiment are as follows: intradermal section of (intrathecal extension pipeline section
11, the first intrathecal pipeline section 12) length is to allow to be placed in subcutaneous conduit active length, which is less than equal to lumbar puncture point
To distance+lumbar puncture depth (general 5-7cm) of C1 spinous process.
Adult: intrathecal 21 length of pipeline section of the second of tubulature is fixed as 25cm, not according to intrathecal 11 length of extension pipeline section
Together, length is divided into: two kinds of specifications of 75cm, 60cm；
Children: subcutaneous 21 length of pipeline section of the second of tubulature is fixed as 15cm, according to the intrathecal difference for extending 11 length of pipeline section, divides
Are as follows: tri- kinds of specifications of 50cm, 40cm, 30cm more adult small of caliber simultaneously.
Embodiment 2:
As illustrated in figures 4-5, the present embodiment is a kind of Implanted type double-cavity conduit for Persistent Csf purification treatment, and feature exists
In: pre-embedded device is stored including long duct, tubulature and subcutaneous cerebrospinal fluid；Conduit is drawn under DSA monitoring by micro-wire
It leads, the front end of long duct is sent along cavum subarachnoidale to C1 centrum, close to cisterna magna；The front end of tubulature is located at
Waist pond near L1-L3 centrum.
Long duct material feature relevant to tubulature is: the long duct and tubulature are by polythene material system
At outer layer is coated with hydrophilic coating, and there be one layer of nitinol alloy wire woven mesh layer 4 in centre, and temperature and cranium pressure data line traveling are in wall
The outside of Nitinol net.Become very smooth after hydrophilic coating Catheter wetting, can effectively reduce the resistance friction walked, reduces
Damage, and histocompatbility is good, does not cause inflammation to be adhered.Polythene material and nitinol alloy wire woven mesh structure keep pipe shaft simultaneous
Tool flexibility and elasticity are easy to walk, are not easy to expand or collapse, and whole x-ray development.
The long duct is from front to back successively by intrathecal extension pipeline section 11, the first intrathecal pipeline section 12 and the first subcutaneous pipeline section
14 compositions；The first pipe connector 131 is arranged at the first subcutaneous 14 rear end face of pipeline section；
The tubulature is successively made of the second intrathecal pipeline section 21 and the second subcutaneous pipeline section 23 from front to back, the second intrathecal pipeline section
21 front ends are equipped with wedge-shaped nozzle 212, which is in oblique oval cross section, realize that sectional area maximizes, increase simultaneously
Pipe shaft is streamlined；
First subcutaneous pipeline section 14 and the second subcutaneous pipeline section 23 are two independent circular pipes, and the two is close to parallel, between have portion
Exceptionally layer is adhered to form one, moves under water conducive in hypodermic tunnel, can will be adhered band from pipe end and tear separation.
The section feature of the present embodiment conduit are as follows: the intrathecal lumen section for extending pipeline section 11 is rounded, outer diameter about 0.63mm,
Internal diameter about 0.43mm.The whole cross-sectional profile of two-chamber body portion is rounded, outer diameter about 1.5mm, thickness of pipe wall about 0.1mm；Two
A lumen is separated by separation beam, and the cross section of first intrathecal 12 lumen of pipeline section is mososeries, the second sheath inner tube
The cross section of 21 lumens of section is ellipse, and two lumen sectional area ratios are 2:1.Although the cross sectional shape of the first intrathecal 12 lumen of pipeline section
It changes but sectional area remains unchanged.Separate beam to be made of toughness material, resilient bias occurs, separates the thickness of beam about
0.1mm。
The specification of the present embodiment are as follows: implanted pipe size specification in the present embodiment are as follows: sheath inner segment (intrathecal extension pipeline section
11, the first sheath inner segment 12) be conduit active length.Distance+lumbar vertebrae that the length is less than lumbar puncture point to C1 spinous process is worn
It pierces depth (general 5-7cm).The length of two-chamber tube body is unified for 80cm, is divided into according to the intrathecal length for extending pipeline section 11: 60cm,
Tetra- kinds of specifications of 50cm, 40cm, 30cm are used with meeting the crowd of different vertebral levels.
The subcutaneous cerebrospinal fluid storage pre-embedded device includes silica gel substrate 31 and is arranged on silica gel substrate 31
Ommayya capsule 32.The Ommayya capsule 32 is an independent two-chamber capsule, there is the first liquid storage chamber 321 and the second liquid storage chamber 322；
The rear end of the first intrathecal pipeline section 14 is connected to the first liquid storage chamber 321, the rear end of the second subcutaneous pipeline section 23 and the second storage
Sap cavity 322 is connected to.The specific features of the two-chamber Ommayya capsule 32 are: have there are two independent transparent silica gel hemisphere figure,
Capsule bottom is fixedly connected in one piece of 31 surface of silica gel substrate.The liquid storage capacity of capsule is about 3ml, hemisphere outer diameter 1.5cm, wall thickness
About 0.3cm, 31 thickness about 0.5cm of silica gel substrate, close to the hemispherical rim of bottom plate, be respectively present in the same direction one communicated with blister cavities it is hard
Property connector, exposed about 1cm, internal diameter about 0.6mm, outer diameter 0.8mm, convenient for the first subcutaneous pipeline section 14 and the second subcutaneous pipeline section 23 with
Connection.Capsule generally by row be implanted into side abdominal subcutaneous, by veutro be the first reservoir, by back side be the second reservoir；It controls
With L-type needle, two blister cavities of percutaneous puncture make the inner gateway conduit phase of pipeline and cavum subarachnoidale outside cerebrospinal purification respectively when treatment
Even, the circulation approach of cerebrospinal purification is established.
It is OmmayyaShi capsule " Ommaya Reservoir " about Ommayya capsule 32, also known as cerebrospinal fluid storing device, in
It is succeeded in developing in Shanghai within 1979, in May, 1981, this was a kind of easy instrument that can do ventricular puncture repeatedly by identification,
Our hospital is applied to clinic at the beginning of nineteen eighty-two.It is detailed in " naval medicine " S1 phase in 1986, OmmayaShi capsule is in neurosurgery clinic
Using Wang Lianjin etc..
0.014 " micro-wire is that clinically the microtubular of development intravascular Interventional Treatment indispensability walks auxiliary consumptive material at present, is had
There are head end passivity, head section softness, shaping, outer hydrophilic coating, the wire guide of very thin lubrication, with not damaged across nature
The ability in gap.Technical products are mature perfect, and there is production in domestic and international multiple intravascular intervention consumptive materials producer.
L-type puncture needle is mature assisted transfusion consumable product.Clinically it is chiefly used in the trouble at indwelling hypodermoclysis port at present
Person punctures pin puncture hypodermoclysis port through L-type, establishes dismountable long-term infusion access.
Although the present invention is illustrated and illustrated to the present invention using specific embodiment and its alternative, but it should reason
Solution, can be implemented without departing from the variations and modifications in scope of the invention.It is therefore understood that in addition to by with
Outside the limitation of attached claim and its condition of equivalent, the present invention is not limited by in all senses.
Claims (10)
1. a kind of external double channel catheter for Persistent Csf purification treatment, it is characterised in that: including long duct and short-range missile
Pipe；
The long duct is from front to back successively by intrathecal extension pipeline section (11), the first intrathecal pipeline section (12) and the first skin outer segment
(13) it forms, the intrathecal front end for extending pipeline section (11) is equipped with head end brain temperature probe (111) and monitoring intracranial pressure probe
(112), the head end brain temperature probe (111) is embedded at intrathecal extension pipeline section (11) front end surface, and the monitoring intracranial pressure is visited
Head (112) is embedded inside the intrathecal tube wall for extending pipeline section (11) front end；The rear end of the first skin outer segment (13) is set
There are first pipe connector (131) and the first pipe clamp (132), the first pipe connector (131) is arranged in the first skin outer segment
(13) at rear end face, first pipe clamp (132) is arranged on the pipeline section of first skin outer segment (13) rear end；
The tubulature is successively made of the second intrathecal pipeline section (21) and the second skin outer segment (22) from front to back, and second is intrathecal
Tail end brain temperature probe (211) is arranged with outside the front of pipeline section (21), the rear end of the second skin outer segment (22) is equipped with second
Pipe joint (221) and the second pipe clamp (222), the second pipe connector (221) are arranged after the second skin outer segment (22)
Endface is held, second pipe clamp (222) is arranged on the pipeline section of second skin outer segment (22) rear end.
2. the external double channel catheter according to claim 1 for Persistent Csf purification treatment, it is characterised in that: institute
It states the first intrathecal pipeline section (12) and the second intrathecal pipeline section (21) prolongs extending direction integral type and is joined together to form two-chamber tube body, it should
The shape of two-chamber tube body cross section is circle, and the cross section of first intrathecal pipeline section (12) lumen is mososeries, described second
The cross section of intrathecal pipeline section (21) lumen is ellipse.
3. the external double channel catheter according to claim 1 for Persistent Csf purification treatment, it is characterised in that: institute
The nozzle of the second intrathecal pipeline section (21) is stated as wedge-shaped nozzle (212).
4. the external double channel catheter according to claim 1 for Persistent Csf purification treatment, it is characterised in that: institute
The front end tube wall for stating the second intrathecal pipeline section (21) is provided with several side openings (213).
5. the external double channel catheter according to any one of claims 1-4 for Persistent Csf purification treatment,
Be characterized in that: the long duct and tubulature are made of polyethylene, are coated with parent in the outside wall surface of long duct and tubulature
Water coating is internally provided with nitinol alloy wire woven mesh layer (4) in the tube wall of long duct and tubulature.
6. a kind of Implanted type double-cavity conduit for Persistent Csf purification treatment, it is characterised in that: including long duct, tubulature
And subcutaneous cerebrospinal fluid stores pre-embedded device；
The long duct is from front to back successively by intrathecal extension pipeline section (11), the first intrathecal pipeline section (12) and the first subcutaneous pipeline section
(14) it forms；The tubulature is successively made of the second intrathecal pipeline section (21) and the second subcutaneous pipeline section (23) from front to back；Institute
It states the first intrathecal pipeline section (12) and the second intrathecal pipeline section (21) prolongs extending direction integral type and is joined together to form two-chamber tube body；
The subcutaneous cerebrospinal fluid storage pre-embedded device includes silica gel substrate (31) and is arranged on silica gel substrate (31)
Ommayya capsule (32)；The inside of the Ommayya capsule (32) has the first liquid storage chamber (321) and the second liquid storage chamber (322),
The rear end of the first subcutaneous pipeline section (14) is connected to the first liquid storage chamber (321), the rear end of the second subcutaneous pipeline section (23) with
Second liquid storage chamber (322) connection.
7. the Implanted type double-cavity conduit according to claim 6 for Persistent Csf purification treatment, it is characterised in that: institute
The shape of two-chamber tube body cross section is stated as circle, the cross section of first intrathecal pipeline section (12) lumen is mososeries, described the
The cross section of two intrathecal pipeline section (21) lumens is ellipse.
8. the Implanted type double-cavity conduit according to claim 6 for Persistent Csf purification treatment, it is characterised in that: institute
The nozzle of the second intrathecal pipeline section is stated as wedge-shaped nozzle (212).
9. the Implanted type double-cavity conduit according to claim 6 for Persistent Csf purification treatment, it is characterised in that: institute
The front end tube wall for stating the second intrathecal pipeline section (21) is provided with several side openings (213).
10. the Implanted type double-cavity conduit of Persistent Csf purification treatment is used for according to claim 6-9 any one,
Be characterized in that: the long duct and tubulature are made of polyethylene, are coated with parent in the outside wall surface of long duct and tubulature
Water coating is internally provided with nitinol alloy wire woven mesh layer (4) in the tube wall of long duct and tubulature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910749265.4A CN110496299A (en) | 2019-08-14 | 2019-08-14 | A kind of double channel catheter for Persistent Csf purification treatment |
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| CN201910749265.4A CN110496299A (en) | 2019-08-14 | 2019-08-14 | A kind of double channel catheter for Persistent Csf purification treatment |
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| CN201910749265.4A Pending CN110496299A (en) | 2019-08-14 | 2019-08-14 | A kind of double channel catheter for Persistent Csf purification treatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113413500A (en) * | 2021-08-20 | 2021-09-21 | 深圳长久康联生物科技有限公司 | Intracranial flow guide and intracranial pressure measurement integrated system |
| CN117138156A (en) * | 2023-10-17 | 2023-12-01 | 首都医科大学附属北京友谊医院 | Anesthesia and pain relieving pump for thoracic department |
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Application publication date: 20191126 |