CN107875497A - A kind of segmental epidural catheter by fluid pressure support - Google Patents
A kind of segmental epidural catheter by fluid pressure support Download PDFInfo
- Publication number
- CN107875497A CN107875497A CN201810008371.2A CN201810008371A CN107875497A CN 107875497 A CN107875497 A CN 107875497A CN 201810008371 A CN201810008371 A CN 201810008371A CN 107875497 A CN107875497 A CN 107875497A
- Authority
- CN
- China
- Prior art keywords
- conduit
- pressure
- liquid
- liquid discharge
- feeding device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- A61M19/00—Local anaesthesia; Hypothermia
-
- 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
-
- 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
-
- 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
- A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
- A61M25/0075—Valve means
-
- 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
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- 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
- A61M2025/0007—Epidural catheters
Abstract
The invention discloses a kind of segmental epidural catheter by fluid pressure support, its structure is that one end of conduit is connected with feeding device, and the other end is connected with liquid discharge device, feeding device is provided with pressure-control valve with liquid discharge device, and conduit is alternated to be connected and formed by stereoplasm tube with flexible hose.It is advantageous that, guide-tube structure is simple, steel wire need not be set in conduit, it is easy to operate, during epidural space is inserted, it is hydraulically full in conduit, the soft tube wall of conduit is in tensioning state, so that conduit is with the ability for overcoming axial resistance and with the flexibility of bending turning, avoid conduit and these positions of strength impact damage occur when encountering blood vessel, tissue or Epidural cavity cavity wall during inserting, when the emptying rate of liquid rear tube in conduit softens so that conduit can be very easily pulled out.
Description
Technical field
The invention belongs to medical domain, and in particular to it is a kind of by medium input human body in or the defeated apparatus on human body.
Background technology
Caudal anaesthesia, i.e. spinal epidural nerve block anaesthetic, it is that local anaesthetics is expelled to epidural space, makes partial ridge refreshing
Through temporary paralysis, dominated region by it and a kind of anesthesia of anaesthetic effect occur.This anesthesia makes operation technique position
Painless with adjoining tissue, organ, but patient's mind is in waking state, can continuous injection, be easily managed in art, be
A kind of anesthesia that clinic is widely used.
A kind of segmental epidural catheter is applied in this anesthesia, common segmental epidural catheter is strengthened for steel wire
Type, easily there is the problems such as putting difficult pipe, conduit discounting, injury tissue or blood vessel, spinal dura mater puncture, difficult conduit extraction.
The content of the invention
It is an object of the invention to provide a kind of segmental epidural catheter by fluid pressure support, current Epidural cavity is overcome
The deficiency of anesthetic tube technology.
To achieve the above object, the technical solution adopted by the present invention is：A kind of caudal anaesthesia by fluid pressure support
Conduit, one end of conduit are connected with feeding device, and the other end is connected with liquid discharge device, and feeding device is provided with liquid discharge device
Pressure-control valve, conduit are alternated to be connected and formed by stereoplasm tube with flexible hose.The Stress control of feeding device and liquid discharge device
Valve, valve is closed mode when pressure is less than certain value, and pressure is open mode when being higher than this definite value.Stereoplasm tube is with flexible hose number
Amount is all higher than 2, and alternates and be connected to form similar corrugated tube shape, can be with free bend.When being passed through liquid and liquid in conduit
Pressure when being just less than certain value, feeding device is closed with the pressure-control valve of liquid discharge device, and the liquid in conduit makes softness
Tube wall is in tensioning state.
A kind of segmental epidural catheter by fluid pressure support of the present invention, when in use, filled and anaesthetized by feeding device
Liquid, the pressure-control valve of feeding device is opened when pressure is more than certain value, and anesthesia liquid is entered in conduit, the pressure liter in conduit
Height, when pressure is more than certain value, the pressure-control valve of liquid discharge device is opened, and the air in conduit is discharged, and anesthesia liquid is full of
Conduit, now stops filling anesthesia liquid, and the pressure at feeding device end decreases below the closing of certain value pressure-control valve, goes out liquid dress
End is put as the discharge pressure of unnecessary anesthesia liquid in the stopping of feed liquor and conduit decreases below certain value, the pressure of liquid discharge device
Force control valve is closed, and now, the pressure-control valve at conduit both ends is turned off, and has sealed one section of pressure in conduit up for safekeeping less than certain value
Anesthesia liquid, all flexible hoses are in tensioning state in the presence of hydraulic coupling is anaesthetized in pipe on conduit so that conduit can overcome
Axial resistance is inserted into epidural space, and the design of flexible hose make it that conduit diametrically possesses the ability flexibly bent, when
Conduit can bend turning when encountering blood vessel, tissue or Epidural cavity cavity wall during being placed into, and avoid conduit to blood vessel, group
Knit or the strength extruding of Epidural cavity cavity wall causes to damage.When conduit liquid discharge device end reaches medicine-feeding part, feeding device end is again
Fill anesthesia liquid so that the pressure-control valve that pressure is more than certain value feeding device is opened, and anesthesia liquid is entered in conduit, conduit
In fluid pressure be increased to more than certain value, the pressure-control valve of liquid discharge device is opened, and the anesthesia liquid in conduit is from going out liquid dress
Put and flow out to up to medicine-feeding part, feeding device supports continuous filling anesthesia liquid, and liquid discharge device, which supports to continue, anesthesia liquid outflow, works as administration
After amount reaches, stop filling anesthesia liquid, pressure reduces, and the pressure-control valve at both ends is closed, and stops administration, now, opens feed liquor
The pressure switch of device, the liquid in conduit is outwards extracted out by feeding device, the flexible hose tensioning state elimination of conduit, conduit
Soften, conduit is easily extracted from epidural space.
It is an advantage of the present invention that guide-tube structure is simple, it is not necessary to steel wire is set in conduit, it is easy to operate, and inserting
Hydraulically full in conduit during epidural space, the soft tube wall of conduit is in tensioning state so that conduit i.e. have gram
Take the flexibility that there is bending to turn again for the ability of axial resistance, avoid conduit encounter during inserting blood vessel, tissue or
These positions of strength impact damage occur during Epidural cavity cavity wall, when the emptying rate of liquid rear tube in conduit softens so that conduit energy
Very easily it is pulled out.
Brief description of the drawings
Fig. 1 is a kind of segmental epidural catheter structural representation by fluid pressure support.
Fig. 2 is feeding device or the schematic diagram of liquid discharge device pressure-control valve open mode.
Fig. 3 is feeding device or the schematic diagram of liquid discharge device Stress control valve closed mode.
Wherein：1- feeding devices, 2- pressure-control valves, 3- stereoplasm tubes, 4- flexible hoses, 5- liquid discharge devices, 6- Stress controls
Valve.
Embodiment
With reference to accompanying drawing, a kind of segmental epidural catheter by fluid pressure support, one end of conduit is connected with feeding device,
The other end is connected with liquid discharge device, and feeding device is provided with pressure-control valve with liquid discharge device, and conduit is by stereoplasm tube with softness
Pipe, which alternates, is connected to similar bellows structure.The pressure-control valve of feeding device and liquid discharge device, pressure are less than certain value
When valve be closed mode, pressure is open mode when being higher than this definite value.When being passed through the pressure of liquid and liquid in conduit just
During less than certain value, feeding device is closed with the pressure-control valve of liquid discharge device, and the liquid in conduit is in soft tube wall
Tensioning state.
In use, filling anesthesia liquid by feeding device, the pressure-control valve of feeding device is opened when pressure is more than certain value,
Anesthesia liquid is entered in conduit, the pressure rise in conduit, and when pressure is more than certain value, the pressure-control valve of liquid discharge device is beaten
Open, the air in conduit is discharged, and anesthesia liquid is full of conduit, now stops filling anesthesia liquid, and the pressure at feeding device end reduces
Closed to less than certain value pressure-control valve, liquid discharge device end is with the discharge of unnecessary anesthesia liquid in the stopping of feed liquor and conduit
Pressure decreases below certain value, and the pressure-control valve of liquid discharge device is closed, and now, the pressure-control valve at conduit both ends closes
Close, sealed the anesthesia liquid that one section of pressure is less than certain value in conduit up for safekeeping, all flexible hoses anaesthetize hydraulic coupling in pipe on conduit
Effect is lower to be in tensioning state so that conduit can overcome axial resistance to be inserted into epidural space, and the design of flexible hose makes
Obtain conduit and diametrically possess the ability flexibly bent, when conduit encounters blood vessel, tissue or Epidural cavity during being placed into
Turning can be bent during cavity wall, conduit is avoided and blood vessel, tissue or the strength extruding of Epidural cavity cavity wall is caused to damage.When conduit goes out liquid
When device end reaches medicine-feeding part, feeding device end fills anesthesia liquid again so that pressure is more than the pressure of certain value feeding device
Force control valve is opened, and anesthesia liquid is entered in conduit, and the fluid pressure in conduit is increased to more than certain value, the pressure of liquid discharge device
Force control valve is opened, and the anesthesia liquid in conduit is flowed out to up to medicine-feeding part from liquid discharge device, and feeding device supports continuous filling anesthesia
Liquid, liquid discharge device, which supports to continue, anesthesia liquid outflow, after dosage reaches, stops filling anesthesia liquid, pressure reduces, the pressure at both ends
Force control valve close, stop administration, now, open the pressure switch of feeding device, by the liquid in conduit from feeding device to
Outer extraction, the flexible hose tensioning state elimination of conduit, conduit soften so that conduit is easily pulled out from epidural space.
Claims (4)
1. a kind of segmental epidural catheter by fluid pressure support, one end of conduit is connected with feeding device, other end connection
There is liquid discharge device, it is characterised in that：Feeding device is provided with pressure-control valve with liquid discharge device, and conduit is by stereoplasm tube with softness
Pipe is alternated to be connected and formed.
A kind of 2. segmental epidural catheter by fluid pressure support as claimed in claim 1, it is characterised in that：Described enters
The pressure-control valve of liquid device and liquid discharge device, valve is closed mode when pressure is less than certain value, when pressure is higher than this definite value
For open mode.
A kind of 3. segmental epidural catheter by fluid pressure support as claimed in claim 1, it is characterised in that：Described is hard
Matter pipe is all higher than 2 with flexible hose quantity, and alternates and be connected to form similar corrugated tube shape, can be with free bend.
A kind of 4. segmental epidural catheter by fluid pressure support as claimed in claim 1 or 2, it is characterised in that：When leading
When the pressure of liquid and liquid is passed through in pipe being just less than certain value, feeding device is closed with the pressure-control valve of liquid discharge device,
Liquid in conduit makes soft tube wall be in tensioning state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810008371.2A CN107875497A (en) | 2018-01-04 | 2018-01-04 | A kind of segmental epidural catheter by fluid pressure support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810008371.2A CN107875497A (en) | 2018-01-04 | 2018-01-04 | A kind of segmental epidural catheter by fluid pressure support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107875497A true CN107875497A (en) | 2018-04-06 |
Family
ID=61770366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810008371.2A Withdrawn CN107875497A (en) | 2018-01-04 | 2018-01-04 | A kind of segmental epidural catheter by fluid pressure support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107875497A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111617345A (en) * | 2020-06-04 | 2020-09-04 | 仲杏英 | Reminding type infusion bag |
-
2018
- 2018-01-04 CN CN201810008371.2A patent/CN107875497A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111617345A (en) * | 2020-06-04 | 2020-09-04 | 仲杏英 | Reminding type infusion bag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107773286A (en) | One kind intervention thrombus removes conduit | |
| CN205095227U (en) | Hedrosyrinx way radiography pipe | |
| CN107875497A (en) | A kind of segmental epidural catheter by fluid pressure support | |
| JP2021500937A (en) | Expansion balloon catheter | |
| CN104922761B (en) | A kind of remaining needle with double duct | |
| CN207804763U (en) | A kind of catheter | |
| CN106540348A (en) | Intussusception hydraulic pressure Sausage diaplasis device | |
| CN210933368U (en) | Catheter for flushing blood clots in bladder | |
| CN109821088A (en) | A kind of enema syringe | |
| CN208212284U (en) | The anti-urine protection urinary catheter that overflows of one kind | |
| CN201091699Y (en) | Naso-biliary tube water-spreading tube with balloon | |
| CN107485757B (en) | Novel indwelling needle | |
| CN213156182U (en) | Single-cavity balloon plugging instrument with microfilaments | |
| CN206566282U (en) | Leak-proof device for enema syringe | |
| CN213852685U (en) | Balloon dilatation catheter with adjustable balloon distance | |
| CN111202916A (en) | Transrectal balloon insertion device for relieving side reaction of ultrasonic therapy | |
| CN208464195U (en) | Single head concentric circles double J pipe | |
| CN205924121U (en) | Needle is kept somewhere to canalis sacralis | |
| CN203971142U (en) | Bladder irrigation blockage resisting catheter | |
| CN206730187U (en) | A kind of nose bile drainage tube | |
| CN212067481U (en) | Transrectal balloon insertion device for relieving side reaction of ultrasonic therapy | |
| CN201441726U (en) | Novel painless catheter | |
| CN206342785U (en) | A kind of Novel urethral catheter | |
| CN213884689U (en) | Injection type latex catheter | |
| CN213220403U (en) | Adjustable bowel relaxing tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180406 |
|
| WW01 | Invention patent application withdrawn after publication |