CN107559166B - A kind of medical reciprocal transportation pump - Google Patents
A kind of medical reciprocal transportation pump Download PDFInfo
- Publication number
- CN107559166B CN107559166B CN201710947158.3A CN201710947158A CN107559166B CN 107559166 B CN107559166 B CN 107559166B CN 201710947158 A CN201710947158 A CN 201710947158A CN 107559166 B CN107559166 B CN 107559166B
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- China
- Prior art keywords
- cylinder
- cylinder sleeve
- piston rod
- medical
- piston
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- 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.)
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 4
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000008092 positive effect Effects 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 239000002504 physiological saline solution Substances 0.000 description 7
- 238000004659 sterilization and disinfection Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010008469 Chest discomfort Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009355 double cropping Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 210000000232 gallbladder Anatomy 0.000 description 1
- 201000010536 head and neck cancer Diseases 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002357 laparoscopic surgery Methods 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of medical reciprocal transportations to pump, including double acting cylinder, cylinder seat, linear drives mould group and pedestal, the double acting cylinder includes cylinder sleeve and piston rod, the cylinder is set in cylinder seat, the both ends of cylinder sleeve are provided with dump valve and inlet valve, and piston rod is coaxially threaded through in cylinder sleeve, and fixing sleeve is equipped with piston on piston rod, cylinder sleeve is divided into two chambers by piston, and piston cooperation is slidably arranged in cylinder sleeve；The both ends of piston rod have been symmetrically arranged block；Linear drives mould group includes mover and stator, and stator is fixed on pedestal, and mover, which reciprocatingly slides, to be arranged on the stator, and mover is arranged with the inside face contact of block respectively along the both ends of glide direction.It is adjustable that the present invention provides a kind of pressure flow, controls simple delivery pump, and as compact-sized, low-cost operation water knife for promoting medical advance, reducing patient's medical treatment cost has positive effect.
Description
Technical field
The invention belongs to medical equipment field, in particular to a kind of medical reciprocal transportation pump.
Background technique
Medical delivery pump is the medical equipment for being commonly used in conveying gas or fluid, and it is reliable reasonable to require in design, knot
Structure assembly is simple, in favor of the disinfection treatment of medical environment.For different use occasions, to the pressure and stream of medical delivery pump
The requirement of amount is also all different.
By taking surgery medical water jet as an example, the maximum feature of medical water jet be to the institutional framework of varying strength and toughness into
The cutting of row selectivity and fine separation, so that specific organization is protected to the greatest extent, and is had and is got a clear view, amount of bleeding
Few advantage not will lead to other such as electric knife, laser, ultrasound knife surgical instruments simultaneously because water knife does not generate thermal energy
The thermal damage of damage is generated to surrounding tissue.In recent years, medical water jet relies on its unique advantage, is widely used in liver and gallbladder in the world
In the clinic training such as surgery, neurosurgery, rectal surgery, ear-nose-throat department Head and neck tumour and in laparoscopic surgery.Meanwhile needle
To different organ or tissues, required optimum Cutting pressure is different from.
Pump (US8251679B2) in the ERBEJET2 of German ERBE's exploitation is sterile single action plunger pump, pressure
0.1~8MPa of range, its structure is complicated, and pressure precision is low, and production cost and medical disposable material are at high cost.Nanfang Medical Univ grinds
A kind of medical pump of twin columns plug structure is studied carefully, two high pressure chests separation of pump is absorbed water by a motor driven piston respectively
It is acted with draining.INST OF SANITARY APPLIANCES A and Institutes Of Technology Of Tianjin have studied biconvex
Wheel-twin columns plug structure medical pump (201310127184.3), and devise automatic de- attach together and set, it can be realized the fast of medical pump
Speed replacement.Plunger pump has variation in course of work moment flow, however the water jet of water knife requires transient pressure flow in pole
Variation in small range, so needing to increase stable-pressure device to guarantee that running parameter is stablized.Physiological saline viscosity is lower simultaneously,
It is easily leaked at pump body and pipe joint, in addition plunger pump belongs to contact pump, i.e., fluid is in contact with the pump housing, pump
Body aoxidizes in air is also easy to produce impurity pollution transportation medium.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, it is adjustable that the present invention provides a kind of pressure flow, control
Simply, flexible delivery pump is connected.
Technical solution: to achieve the above object, technical scheme is as follows:
A kind of medical reciprocal transportation pump, including double acting cylinder, cylinder seat, linear drives mould group and pedestal, the double acting cylinder
Including cylinder sleeve and piston rod, the cylinder is set in cylinder seat, and the cylinder seat is fixed above pedestal, and the two of the cylinder sleeve
End is provided with dump valve and inlet valve, and the piston rod is coaxially threaded through in cylinder sleeve, and cylinder sleeve is stretched out at the piston rod both ends
Outside, fixing sleeve is equipped with piston on the piston rod, and cylinder sleeve is divided into two chambers by the piston, and the piston, which is slidably matched, to be set
It sets in cylinder sleeve；The both ends of the piston rod have been symmetrically arranged block；
The linear drives mould group is arranged between pedestal and double acting cylinder, and the linear drives mould group includes mover and determines
Son, the stator are fixed on pedestal, and the mover, which reciprocatingly slides, to be arranged on the stator, and the mover is along sliding side
To both ends be arranged respectively with the inside face contact of block, the linear drives mould group drives block shift reciprocately, can make piston
Move back and forth and carry out the pump drainage of liquid.
It further, further include grating scale and reading head, the grating scale is arranged on the side wall of the length direction of stator,
The reading head is arranged on the side wall of the length direction of mover, the grating scale and the ipsilateral setting of reading head.
Further, the cylinder seat is inverted U bar structure, and the crossbeam middle position of the cylinder seat is provided with opening up
Concave structure, the cylinder is set in the concave structure, and the concave structure middle position offers pin hole；The cylinder
The bottom of set is provided with several fixed pins, and the fixed pin is correspondingly arranged with the pin hole.
Further, the cylinder sleeve at least one end is provided with cylinder cap, and the cylinder cap is threadedly coupled with cylinder sleeve.
The utility model has the advantages that (1) is compact-sized for of the invention having the advantage that, control is simple；(2) convenient for disinfection, disposably
Consumptive material is few；(3) mechanical stability is high, and pressure flow is adjustable.
Detailed description of the invention
Accompanying drawing 1 is the structural representation of the present invention；
Attached drawing 2 is the explosive view of cylinder body in structure of the invention.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of medical reciprocal transportation pump, including double acting cylinder 1, cylinder seat 2, linear drives mould
Group 3 and pedestal 4, the double acting cylinder 1 include cylinder sleeve 1-5 and piston rod 1-2, and the cylinder sleeve 1-5 is arranged in several cylinder seats 2,
The cylinder seat 2 is fixed at 4 top of pedestal, and the both ends of the cylinder sleeve 1-5 are provided with dump valve 1-3 and inlet valve 1-4, institute
It states dump valve 1-3 and inlet valve 1-4 and passes through the cylinder body two sides that cylinder sleeve is arranged in valve seat 1-7, the piston rod 1-2 is coaxially worn
In cylinder sleeve 1-5, and the both ends the piston rod 1-2 are stretched out outside cylinder sleeve 1-5, and fixing sleeve is equipped with piston, institute on the piston rod 1-2
It states piston and cylinder sleeve 1-5 is divided into two chambers, the piston, which is slidably matched, to be arranged in cylinder sleeve 1-5；The piston rod 1-2's
Both ends have been symmetrically arranged block 1-1；
The linear drives mould group 3 is arranged between pedestal 4 and double acting cylinder 1, and the linear drives mould group 3 includes mover
3-1 and stator 3-2, the stator 3-2 are fixed on pedestal 4, and the mover 3-1, which reciprocatingly slides, to be arranged in the stator 3-
On 2, the mover 3-1 is arranged with the inside face contact of block 1-1 respectively along the both ends of glide direction, the linear drives mould group
3 driving block 1-1 shift reciprocatelies, can make reciprocating motion of the pistons and carry out the pump drainage of liquid, realize the present invention to physiological saline
Continuous pressure and conveying.Its double acting cylinder 1 can make the inlet valve at both ends and the stability of flow of dump valve, and structure is simple, be easy
Control, because the sucking and discharge of liquid are carried out in same cylinder sleeve, mechanical stability is high, sucking or row in two chambers
Flow out is identical.
It further include that the side wall of the length direction of stator 3-2 is arranged in grating scale 5-1 and reading head 5-2, the grating scale 5-1
On, on the side wall for the length direction that mover 3-1 is arranged in the reading head 5-2, the grating scale 5-1 and reading head 5-2 are ipsilateral
Setting.Have detection range big using grating scale, it is the characteristics of detection accuracy is high, fast response time, right by drive dynamic control device 5
The position-force control of linear drives mould group 3 and adjusting are realized to pressure flow hybrid control of the invention and adjusting.
The cylinder seat 2 is inverted U bar structure, and the crossbeam middle position of the cylinder seat 2 is provided with opening up spill
Structure, the cylinder sleeve 1-5 are arranged in the concave structure, and the concave structure middle position offers pin hole 2-1；The cylinder
The bottom of set 1-5 is provided with several fixed pin 1-9, and the fixed pin 1-9 is correspondingly arranged with the pin hole 2-1.Make cylinder sleeve 1-5 and
The relatively fixed connection of cylinder seat 2, avoids the shift in position of cylinder sleeve at work, and be detachably connected, after power cut-off, by double cropping
Lifted from cylinder seat 2 with cylinder 1, dismantling disinfection is carried out after disengagement connection and is prepared for the next use with standard.Its medical disposable material is few, disinfection
When it is convenient, reusability is strong.At least one end the cylinder sleeve 1-5 is provided with cylinder cap 1-6, the cylinder cap 1-6 and cylinder sleeve 1-5 screw thread
Connection.In disinfection, piston rod 1-2 and piston can be extracted out by opening cylinder cap 1-6, convenient for carrying out cleaning and sterilizing to cylinder sleeve inside.
Working principle: in use, starting linear drives mould group 3, the mover 3-1 of linear drives mould group 3 move reciprocatingly, such as
Shown in Fig. 1 and 2, mover 3-1 turns right when moving, and pushes the right side block 1-1 of double acting cylinder 1 to move right, thus with piston
Bar 1-2 movement, so that right chamber volume reduces in cylinder sleeve 1-5, the physiological saline compression in right chamber is discharged through right chamber dump valve, left chamber
Volume increases, and new physiological saline is entered in left chamber by inlet valve 1-4, until mover 3-1 moves to limit on the right-right-hand limit position, later
Mover reversely moves downward, and the left side block 1-1 of double acting cylinder 1 is pushed to move downward, so that piston rod 1-2 be driven to move, makes
Left chamber volume in cylinder sleeve 1-5 is obtained to reduce, the physiological saline in left chamber is pressurized to be discharged through left chamber dump valve 1-3, and right chamber volume increases,
New physiological saline is entered in right chamber by inlet valve, until mover 3-1 moves to limit on the left position, and so on, realizes this
Continuous pressure and conveying of the invention to physiological saline.By drive dynamic control device 5 to the position of linear drives mould group 3 in use process
It sets closed-loop control and adjusts and realize to pressure flow hybrid control of the invention and adjusting.
Linear drives mould group 3 is shut down, power cut-off lifts double acting cylinder 1 from cylinder seat 2, is torn open after disengaging connection
Solution disinfection is prepared for the next use with standard.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of medical reciprocal transportation pump, it is characterised in that: including double acting cylinder (1), cylinder seat (2), linear drives mould group (3) and
Pedestal (4), the double acting cylinder (1) include cylinder sleeve (1-5) and piston rod (1-2), and the cylinder sleeve (1-5) is arranged in cylinder seat (2)
On, the cylinder seat (2) is fixed above pedestal (4), the both ends of the cylinder sleeve (1-5) be provided with dump valve (1-3) and
Inlet valve (1-4), the piston rod (1-2) are coaxially threaded through in cylinder sleeve (1-5), and cylinder is stretched out at the piston rod both ends (1-2)
Covering (1-5) outside, fixing sleeve is equipped with piston on the piston rod (1-2), and cylinder sleeve (1-5) is divided into two chambers by the piston,
The piston is slidably matched setting in cylinder sleeve (1-5)；The both ends of the piston rod (1-2) have been symmetrically arranged block (1-
1)；
The linear drives mould group (3) is arranged between pedestal (4) and double acting cylinder (1), and the linear drives mould group (3) includes
Mover (3-1) and stator (3-2), the stator (3-2) are fixed on pedestal (4), and the mover (3-1), which reciprocatingly slides, to be set
It sets on the stator (3-2), the mover (3-1) is along the both ends of the glide direction inside face contact with block (1-1) respectively
Setting, the linear drives mould group (3) drive block (1-1) shift reciprocately, can make reciprocating motion of the pistons and carry out the pumping of liquid
Row.
2. a kind of medical reciprocal transportation pump according to claim 1, it is characterised in that: further include grating scale (5-1) and reading
Several (5-2), the grating scale (5-1) is arranged on the side wall of the length direction of stator (3-2), and the reading head (5-2) sets
It sets on the side wall of the length direction of mover (3-1), the grating scale (5-1) and reading head (5-2) ipsilateral setting.
3. a kind of medical reciprocal transportation pump according to claim 1, it is characterised in that: the cylinder seat (2) is the inverted U body of rod
Structure, the crossbeam middle position of the cylinder seat (2) are provided with opening up concave structure, and the cylinder sleeve (1-5) is arranged in institute
It states in concave structure, the concave structure middle position offers pin hole (2-1)；The cylinder sleeve (1-5) if bottom be provided with
Solid rationed marketing (1-9), the fixed pin (1-9) are correspondingly arranged with the pin hole (2-1).
4. a kind of medical reciprocal transportation pump according to claim 1, it is characterised in that: the cylinder sleeve (1-5) at least one end
It is provided with cylinder cap (1-6), the cylinder cap (1-6) is threadedly coupled with cylinder sleeve (1-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710947158.3A CN107559166B (en) | 2017-10-12 | 2017-10-12 | A kind of medical reciprocal transportation pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710947158.3A CN107559166B (en) | 2017-10-12 | 2017-10-12 | A kind of medical reciprocal transportation pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107559166A CN107559166A (en) | 2018-01-09 |
| CN107559166B true CN107559166B (en) | 2018-12-11 |
Family
ID=60985412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710947158.3A Expired - Fee Related CN107559166B (en) | 2017-10-12 | 2017-10-12 | A kind of medical reciprocal transportation pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107559166B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5817955A (en) * | 1996-03-21 | 1998-10-06 | Bayer Corporation | Apparatus for simultaneous aspiration and dispensation of fluids |
| DE102004042208A1 (en) * | 2004-09-01 | 2007-01-25 | Volkswagen Ag | Fluid e.g. hydraulic fluid, delivering piston pump for e.g. hydraulic braking system, has piston rod that is designed as drive rod and has ends, where one end is connected with linear motor and other end is connected with valve-control unit |
| CN102305203A (en) * | 2011-08-16 | 2012-01-04 | 北京工业大学 | Linear motor-driven plunger pump |
| CN204103735U (en) * | 2014-07-25 | 2015-01-14 | 广东凯宝机器人科技有限公司 | A kind of New Type Linear Motor module |
| CN104632610A (en) * | 2014-12-29 | 2015-05-20 | 浙江理工大学 | Electric linear reciprocation type double-acting quantification plunger pump |
-
2017
- 2017-10-12 CN CN201710947158.3A patent/CN107559166B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5817955A (en) * | 1996-03-21 | 1998-10-06 | Bayer Corporation | Apparatus for simultaneous aspiration and dispensation of fluids |
| DE102004042208A1 (en) * | 2004-09-01 | 2007-01-25 | Volkswagen Ag | Fluid e.g. hydraulic fluid, delivering piston pump for e.g. hydraulic braking system, has piston rod that is designed as drive rod and has ends, where one end is connected with linear motor and other end is connected with valve-control unit |
| CN102305203A (en) * | 2011-08-16 | 2012-01-04 | 北京工业大学 | Linear motor-driven plunger pump |
| CN204103735U (en) * | 2014-07-25 | 2015-01-14 | 广东凯宝机器人科技有限公司 | A kind of New Type Linear Motor module |
| CN104632610A (en) * | 2014-12-29 | 2015-05-20 | 浙江理工大学 | Electric linear reciprocation type double-acting quantification plunger pump |
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| Publication number | Publication date |
|---|---|
| CN107559166A (en) | 2018-01-09 |
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Granted publication date: 20181211 |