CN207804767U - A kind of adjustable pressure differential valve of surgery - Google Patents
A kind of adjustable pressure differential valve of surgery Download PDFInfo
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- CN207804767U CN207804767U CN201720424545.4U CN201720424545U CN207804767U CN 207804767 U CN207804767 U CN 207804767U CN 201720424545 U CN201720424545 U CN 201720424545U CN 207804767 U CN207804767 U CN 207804767U
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- pressure
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- sliding sleeve
- locking magnet
- sphere
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- 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
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
- A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
- A61M27/006—Cerebrospinal drainage; Accessories therefor, e.g. valves
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Ophthalmology & Optometry (AREA)
- Otolaryngology (AREA)
- Anesthesiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
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Abstract
The utility model provides a kind of surgery adjustable mechanicalness pressure differential valve, it belongs to the shunt device of cerebrospinal fluid of the diseases such as treatment neurosurgery hydrocephalus, spinal cord empty, it is mainly used for being needed that different pressure gears can be set according to treatment, it is characterized in that having pressure adjustable, it is anti-to backflow, the functions such as magnetic force locking.
Description
Technical field
The present invention relates to a kind of adjustable mechanicalness pressure differential valves of surgery, are mainly used in neurosurgery cerebrospinal fluid
Shunting treatment, belong to surgical medical equipment field.
Background technology
Hydrocephalus and spinal cord empty are neurosurgery common diseases, are a kind of diseases caused by cerebrospinal fluid circulation is unsmooth
Disease, cerebrospinal fluid circulation be normal person's physiological cycle a part, cerebrospinal fluid by telocoele choroid plexus generate, by side opening into
Enter three ventricles of the brain, Fourth ventricule and myelocoele entered by mesotube, after flow through Fourth ventricule medium pore and side opening enters brain table
Face cavum subarachnoidale, the absorbed into serum at arachnoid villi, into the blood circulation of human body, the daily cerebrospinal fluid secretion of normal person
Amount is about 350-500ml, and the cerebrospinal fluid amount of normal ventricular system is about 150-300ml, therefore is inhaled when the secretory volume of cerebrospinal fluid is more than
It just will appear the ventricles of the brain when receipts amount gradually to expand, then develop into hydrocephalus.Hydrocephalus can be divided into communicating brain according to type and accumulate
Water, i.e., since cerebrospinal fluid absorbs unsmooth cause；Internal hydrocephaly has the position of obstruction in cerebrospinal fluid circulation access, than
Such as：Oncothlipsis etc..It can be divided into children with congenital hydrocephalus and secondary hydrocephalus, secondary brain according to pathogenic factor
Ponding includes hydrocephalus caused by the factors such as craniocerebral trauma, subarachnoid hemorrhage, encephalitis, neurosurgery be postoperative.According to cranium
The height of interior pressure can be divided into hypertensive hydrocephalus and normal pressure hydrocephalus.
Hydrocephalus preferred ventriculo-peritoneal shunt in the treatment, in addition can also select the ventricles of the brain-atrium shunting, the ventricles of the brain-mistake shape
Sinus shunts, and the therapeutic modalities such as the ventricles of the brain-bladder shunting, shunt operation needs to apply isocon, and isocon is divided into constant pressure shunting at present
Pipe, i.e., can not carry out pressure controlled isocon and pressure adjustable type isocon, you can set to adjust isocon as needed
The pressure set.Due to the continually changing feature of particularity and pressure of ventricular system, therefore pressure-adjustable isocon more meets physiology
Feature is also more suitable for neurosurgery needs.
Currently, the pressure adjustable type isocon clinically applied is essentially from Johnson ＆ Johnson of the U.S., U.S.'s Medtronic, the German bright snake of shellfish
The pressure-adjustable principle of board, the product of French Sophysa Inc., each producer's isocon is different, such as：Johnson Co.
The wireless servo motor principle used, Medtronic Inc. of the U.S. use compressed spring principle, the German bright snake board of shellfish and France Suo Fei
Sa companies use the principle etc. of pressure shrapnel.The pressure-adjustable isocon product of the domestic and international market in the field is all from above-mentioned four
Company.In the present invention, inventor uses pressure setting and the Principles of Regulation of compressed spring-ball threshold, and has diamagnetic field
Effect, can allow the present apparatus under magnetic field, as kept pressure setting constant under the action of magnetic resonance.Meanwhile the present invention has simultaneously
Standby one-directional fluid flow, the anti-function of backflowing.
Invention content
The purpose of the present invention is to provide a kind of pressure differential valves of novel treatment cerebrospinal fluid shunt, can with pressure
It adjusts, diamagnetic field, the functions such as anti-reflux.
A kind of adjustable pressure differential valve of surgery comprising：
Pressure adjusts and lock part, including：
Sliding sleeve, pressure spring, sphere, pressure regulation magnet, locking magnet, lockplate, fixing screws.
Housing part, including：
Central cannulation, upper cover, shell, inlet part, spout member.
Liquid communication part, including：
Through pressure adjusting and the fluid inlet of 2 parts in lock part and housing part, fluid outlet and fluid
Chamber.
The sliding sleeve of described device is located in the casing of housing part, and in central cannulation internal slide, sliding sleeve
Inside there is pressure spring, have tabula inside sliding sleeve, play the role of fixed and limit compression spring, in sliding sleeve in
When the set in-pipe of centre, compression spring is in telescopic variation.Pressure regulation magnet is fixed in sliding sleeve upper surface, has locking magnet on shell
Slot.
The pressure spring of described device is located in sliding sleeve, and head end is contacted with sphere, in tail end and sliding sleeve
Tabula contacts, and generates telescopic variation by the sliding of sliding sleeve, the elastic force different role that telescopic variation generates is in head end
Sphere.
The sphere of described device is located in the casing of housing part, and constitutes sphere sealing-in with the sphere pedestal of casing,
Receive the elastic force from spring, then so that sphere is constituted from casing sphere pedestal generates different pressure changes at sphere sealing-in
Change.Preferably, the sphere is the smooth ruby ball in surface.
The pressure regulation magnet of described device is fixed on sliding sleeve upper surface, and effect is identification pressure setting site, and
The sliding of sliding sleeve is driven under the action of pressure regulation tool.
The pressure regulation tool is the device that can identify and be arranged the invention device pressure.
The locking magnet of described device is located in the locking magnet slot on sliding sleeve shell, is two pieces of corresponding surface polar repulsions
Magnet, under the effect of no external magnetic field, two pieces of locking magnets are mutually exclusive outward, with the locking magnet groove in the lockplate of outside
The fixation pressure for preventing sliding sleeve from sliding setting is played the role of in contact.When the locking magnet of locking magnet and lockplate is recessed
When slot detaches, sliding sleeve can be in the drive lower slider of pressure regulation magnet.
Lockplate is fixed on shell by the fixing screws of described device, lockplate by locking magnet groove in it with
Locking magnet contacts, and the function of fixation pressure setting is played together with locking magnet.
The central cannulation of described device is fixed in the shell of casing, inside there is a sliding sleeve, pressure spring, sphere, on
State the function that motion process of three pieces of components in casing plays pressure setting；Central cannulation upper part hollow out is herein tune
The fixed part of magnet and sliding sleeve, pressure regulation magnet is pressed to drive sliding sleeve to be slided in central cannulation by hollow out at this；
The side hollow out of central cannulation is by locking magnet, and locking magnet at this with lockplate by acting on.
There are central cannulation, lockplate, the fixed position of fixing screws, with upper cover, center set on the shell of described device
Pipe, inlet part, spout member collectively form the housing part of apparatus of the present invention.
The Pressure identification and pressure adjustment process of described device：When described device of the invention is in the effect of no external magnetic field
When, two pieces of locking magnets are embedded in a certain position in the locking magnet groove of lockplate, and the telescopic level of compression spring is at this time
Pressure at sphere sealing-in at this time, when locking magnet is located at the caudal end of groove, compression spring elastic force is minimum, and described device is set
Constant-pressure is minimum, and when locking magnet is located at groove most head end, compression spring elastic force is maximum, and the setting pressure of described device is maximum,
Groove different location where pressure regulation tool can identify pressure regulation magnet and locking magnet by magnetic field, i.e. set pressure.
When needing to carry out pressure adjusting, first, the pressure regulation magnet application magnetic force of described device is sucked in the magnetic field in pressure regulation tool,
Afterwards, the magneticaction that two pieces of locking magnets mutually repel is applied to by pressure regulation tool, which is more than the same of two pieces of magnet
To magneticaction, two pieces of magnet are close to each other in the locking magnet slot of sliding sleeve, at this point, locking magnet outside and lockplate
Interior locking magnet groove separation, sliding sleeve unlock drive pressure regulation magnet using pressure regulation tool, that is, drive sliding sleeve sliding
Site is set to specified pressure, later, releases magneticaction of the external magnetic field to locking magnet, locking magnet insertion is specified recessed
In slot, finally, magneticaction of the external magnetic field to pressure regulation magnet is released, the setting of pressure is then completed.
The pressure lock function of described device, i.e., diamagnetic field function implementation process：Under magnetic fields, such as in magnetic resonance
Under, will produce an additional magneticaction in a direction of described device, it is assumed that the magnetic fields are vertical with described device,
At this point, two pieces of locking magnets of described device, by magneticaction, wherein one piece of magnet and magnetic direction are in the same direction, this piece locks magnetic
Iron is detached with lockplate locking magnet groove, and other one piece of locking magnet with magnetic direction on the contrary, this piece of locking magnet is not sent out
Raw change in location, locking magnet still play locking effect, and sliding sleeve can not slide, that is, play pressure lock function, therefore pressure
It is not influenced by magnetic resonance examination after setting.
The fluid of described device flows and anti-process of backflowing：After liquid enters from the fluid inlet of described device, effect
In on the sphere of sphere sealing-in, when fluid pressure is more than the pressure of described device setting, fluid can be pressed downward body of kicking off, rear liquid
Body walks fluid cavity, after from described device fluid outlet flow out.When in abnormal cases, described device distal liquid pressure occurs
When power is more than pressure at sphere sealing-in, due to the iris action of compression spring and sphere, liquid can not backflow to fluid inlet, after
And avoid retrograde infection complication of the described device when treating the diseases such as hydrocephalus.
Described device can be according to the different situations of intracranial pressure, dynamic adjustment setting pressure, to adapt to clinical treatment
Demand.
In this application, if be not particularly described, the position relationship of various components is position based on ... shown in the drawings
Relationship is set, used device, instrument, component, size and other conditions etc. are all well-known in the art or ability
Field technique personnel combine the prior art may be implemented according to the description of application.
The description as described in term in the present invention, if with the difference of the description before this field, it should be with retouching in the application
Subject to stating.
Description of the drawings
Fig. 1 is the decomposition view of apparatus of the present invention；
Fig. 2 is the birds-eye perspective of apparatus of the present invention；
Fig. 3 is the side sectional view of apparatus of the present invention；
Fig. 4 is the short axle sectional view of apparatus of the present invention；
Figure label title：(1) upper cover；(2) fixing screws；(3) lockplate；(4) locking magnet groove；(5) screw
Hole；(6) locking magnet；(7) central cannulation；(8) hollow out in central cannulation；(9) central cannulation side hollow out；(10) inlet part；
(11) spout member；(12) sphere；(13) compression spring；(14) pressure regulation magnet；(15) sliding sleeve；(16) pressure regulation magnet card
Slot；(17) locking magnet slot；(18) shell；(19) board slot is locked；(20) screw slots；(21) fluid outlet；(22) fluid inlet；
(23) sphere sealing-in；(24) sphere pedestal；(25) fluid cavity；(26) sliding sleeve partition board.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings
Embodiment 1：
The Pressure identification and pressure adjustment process of described device：As shown in attached drawing 1-4, when the described device of the present invention is in nothing
When the effect of external magnetic field, a certain position in the locking magnet groove (4) of the embedded lockplate (3) of two pieces of locking magnets (6), this
When compression spring (13) telescopic level be pressure at sphere sealing-in at this time (23), locking magnet (6) is located at groove (4)
When caudal end, compression spring (13) elastic force is minimum, and the setting pressure of described device is minimum, and locking magnet (6) is located at locking magnet
When groove (4) most head end, compression spring (13) elastic force is maximum, and the setting pressure of described device is maximum, when pressure regulation tool can pass through
Magnetic field identifies locking magnet groove (4) different location where pressure regulation magnet (14) and locking magnet (6), i.e. set pressure
Power.When needing to carry out pressure adjusting, first, the pressure regulation magnet (14) of described device is applied magnetic force by the magnetic field in pressure regulation tool
It is sucked, thereafter, the magneticaction that two pieces of locking magnets (6) are mutually repelled is applied to by pressure regulation tool, which is more than two
The magneticaction in the same direction of piece magnet (6), two pieces of magnet (6) are close to each other in the locking magnet slot (17) of sliding sleeve (15),
At this point, being detached with the locking magnet groove (4) in lockplate (3) on the outside of locking magnet (6), sliding sleeve (15) unlock, application
Pressure regulation tool drives pressure regulation magnet (14), that is, drives sliding sleeve (15) to slide into specified pressure setting site and release later
To the magneticaction of locking magnet (6), locking magnet (6) is embedded to specify in locking magnet groove (4) external magnetic field, finally, solution
Except external magnetic field is to the magneticaction of pressure regulation magnet (14), the setting of pressure is then completed.
Embodiment 2：
The pressure lock function of described device, i.e., diamagnetic field function implementation process：As shown in attached drawing 1-4, in magnetic fields
Under, such as under magnetic resonance, will produce an additional magneticaction in a direction of described device, it is assumed that the magnetic fields with
Described device is vertical, at this point, two pieces of locking magnets (6) of described device are by magneticaction, wherein one piece of magnet and magnetic field side
To in the same direction, this piece of locking magnet (6) detaches with lockplate (3) locking magnet groove (4), and other one piece of locking magnet (6) with
For magnetic direction on the contrary, change in location does not occur for this piece of locking magnet (6), locking magnet (6) still plays locking effect, sliding sleeve
Pipe (15) can not slide, that is, play pressure lock function, therefore do not influenced by magnetic resonance examination after pressure setting.
Embodiment 3：
The fluid of described device flows and anti-process of backflowing：As illustrated in the accompanying drawings from 1 to 3, fluid inlet of the liquid from described device
(22) it after entering at, acts on the sphere (12) of sphere sealing-in (23), when fluid pressure is more than the pressure of described device setting
When, fluid can be pressed downward body (12) of kicking off, and rear liquid walks fluid cavity (25), after at described device fluid outlet (21) flow
Go out.When in abnormal cases, when described device distal liquid pressure occurs being more than pressure at sphere sealing-in (23), due to pressure
The iris action of spring (13) and sphere (12), liquid can not backflow to fluid inlet (22), and described device is then avoided to control
Treat the retrograde infection complication when diseases such as hydrocephalus.
The purpose of embodiment as described above is that the specific implementation mode to the present invention is further described, not
The present invention is imposed any restrictions, it is every to be become according to any simple modification, change and equivalent structure made by the technology of the present invention essence
Change, is still within the scope of the technical scheme of the invention.
Claims (3)
1. a kind of surgery is with pressure differential valve is adjusted, pressure adjusts and lock part, including：
Sliding sleeve, pressure spring, sphere, pressure regulation magnet, locking magnet, lockplate, fixing screws；The sliding sleeve is located at
In the central cannulation of housing part, and there is pressure spring in central cannulation internal slide, sliding sleeve, upper surface, which is fixed, adjusts
Magnet is pressed, has locking magnet slot on shell；The pressure spring is located in sliding sleeve, and head end is contacted with sphere, tail end with
Tabula contact in sliding sleeve；The sphere is located in the central cannulation of housing part, and is constituted with the sphere pedestal of casing
Sphere sealing-in；The pressure regulation magnet is fixed on sliding sleeve upper surface, and locking magnet is located at the locking magnet on sliding sleeve shell
In slot, locking magnet is contacted with the locking magnet groove in lockplate；Lockplate is fixed on the shell of casing by the fixing screws
On body, lockplate is contacted by the locking magnet groove in it with locking magnet.
2. a kind of adjustable pressure differential valve of surgery, housing part, including：
Central cannulation, upper cover, shell, inlet part, spout member；The central cannulation is fixed in the shell of casing, in
There is sliding sleeve, pressure spring, sphere, upper part hollow out is the fixed part of pressure regulation magnet and sliding sleeve, side
Hollow out passes through locking magnet；There are casing, lockplate, the fixed position of fixing screws, with upper cover, center set on the shell
Pipe, inlet part, spout member collectively form housing part.
3. a kind of surgery according to claim 1, any one of 2 is wrapped with pressure differential valve, liquid communication part is adjusted
Include the fluid inlet through the adjusting of above-mentioned pressure and lock part and housing part, fluid outlet and fluid cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720424545.4U CN207804767U (en) | 2017-04-21 | 2017-04-21 | A kind of adjustable pressure differential valve of surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720424545.4U CN207804767U (en) | 2017-04-21 | 2017-04-21 | A kind of adjustable pressure differential valve of surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207804767U true CN207804767U (en) | 2018-09-04 |
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ID=63336683
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720424545.4U Active CN207804767U (en) | 2017-04-21 | 2017-04-21 | A kind of adjustable pressure differential valve of surgery |
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| Country | Link |
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| CN (1) | CN207804767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114748786A (en) * | 2022-03-27 | 2022-07-15 | 迈德微创(天津)医疗器械有限责任公司 | Flow divider with self-locking and zero return prevention functions |
-
2017
- 2017-04-21 CN CN201720424545.4U patent/CN207804767U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114748786A (en) * | 2022-03-27 | 2022-07-15 | 迈德微创(天津)医疗器械有限责任公司 | Flow divider with self-locking and zero return prevention functions |
| CN114748786B (en) * | 2022-03-27 | 2024-03-05 | 迈德微创(天津)医疗器械有限责任公司 | Flow dividing valve with self-locking and zero return preventing functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191223 Address after: 300457 workshop b2-4, workshop 17, No. 80, Haiyun street, Binhai New Area Development Zone, Tianjin Patentee after: Meide Minimally Invasive (Tianjin) Medical Devices Co., Ltd. Address before: 110000 Yuhong District, Shenyang, Liaoning, Yuhong new town, 129 yuan, 1 yuan 28-2, Galaxy city. Patentee before: Ma Weining |
|
| TR01 | Transfer of patent right |