CN100488463C - Water jet surgery device - Google Patents
Water jet surgery device Download PDFInfo
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- CN100488463C CN100488463C CNB2005800100367A CN200580010036A CN100488463C CN 100488463 C CN100488463 C CN 100488463C CN B2005800100367 A CNB2005800100367 A CN B2005800100367A CN 200580010036 A CN200580010036 A CN 200580010036A CN 100488463 C CN100488463 C CN 100488463C
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Abstract
Disclosed is a water jet surgery device, comprising a plurality of supply cylinders with a working fluid stored therein, and which can be discharged through an outlet by means of a piston into a pressure line. At least one actuation device is provided in order to actuate the piston of the supply cylinders. Working fluid can be discharged into the pressure line from successively emptied supply cylinders by means of an alternating device used to alternate the actuation of the piston of one supply cylinder with that of another supply piston, resulting in a simple small structured device.
Description
The present invention relates to a kind of utensil that is used for the surgery water jet, wherein fluid under high pressure penetrates with resection organization selectively from nozzle.
Usually in this utensil, the supply cylinder that at one end has an outlet (initially closing) is full of working fluid, as woods lattice (Ringer) solution, its other end piston closes.To supply with cylinder then inserts in the stable chamber that is placed in the apparatus shell.After closing housing, the stick that is subjected to Driven by Hydraulic Cylinder contacts placement with piston in supplying with cylinder.Present known utensil can be used for operation.The pressure that must be applied on the fluid in the operation process is produced by hydraulic cylinder.
The working fluid that sufficient amount can be arranged in order in operation process, to need not to exchange the supply cylinder, otherwise operation process will have many unessential interruptions, and therefore this supply cylinder must have big relatively volume.Cylinder diameter is made greatly more, and the power that is applied by hydraulic system must be big more, and therefore, the container of supplying with cylinder requires corresponding higher rigidity.On the other hand, if improve the volume of supplying with cylinder by prolonging cylinder, and prolong the stroke of piston thus, its result causes the increase of utensil total height.Present compromise is that the production diameter is the supply cylinder of ca.60mm, and the result obtains the associating utensil of vertical structure, and it highly is ca.1200 to 1500mm.Essential driving device promptly with the hydraulic cylinder of hydraulic pump associating, is very meticulous and is difficult to use.
Further, only using under " little " surgery situation of small volume of fluid, because must discharge the unnecessary working fluid that requires of working fluid aseptic condition, it has increased the operation cost of known devices.
The objective of the invention is to disclose the simple utensil that a kind of operation that can undergo surgery economically reduces the complexity of structure simultaneously.
This purpose realizes that by a kind of surgical operation water jet utensil that is used for it has a plurality of supply cylinders, and working fluid is stored in wherein, and pressurized enters catheter pressure by means of piston through an outlet thus.Provide at least one driving device with driven plunger.In addition, provide a conversion equipment, and will drive the piston that is transformed into another supply cylinder from the piston of a supply cylinder by means of it, working fluid can enter catheter pressure from supplying with cylinder by adjoining land like this, supplies with cylinder emptying successively simultaneously.
Therefore, main points of the present invention are that one (single) supply cylinder that will have previously is subdivided into the less supply cylinder of a plurality of correspondences at this.This measure has solved many problems simultaneously.The first, because diameter reduces, make so less supply cylinder can be used than short-lived material, but it also can resist very frequent (very high) pressure.The second, can produce necessary operating pressure with less power, required like this driving device can be constructed more simply.The 3rd because the less stroke of piston, this utensil can make little a lot (for example, can be placed on the platform).The 4th, in the operation of " relatively little ", more less than the supply cylinder that in " greatly " operation, uses up.In utensil of the present invention, because it still guarantees to be aseptic condition, so the supply cylinder that does not have to use can be used for operation subsequently.
Preferably, conversion equipment is configured to have some overlapping between piston is driven consecutive periods in the process, is continuously by driving the liquid that enters catheter pressure that produces therefore.Yet on the one hand, supply with under the cylinder situation in the large volume of routine, the continuous supply of working fluid is guaranteed by big fluid volume, and continuous supply of this fluid of the present invention is to realize very effectively.
Preferably, provide sealing device so that to supply with the fluid issuing of cylinder waterproof, therefore need not be for firm connection manual engagement; Joint that the substitute is the automatic/machinery of a strong supply cylinder satisfies the sealing device needs.
When having a plurality of driving device, the overlapping driving of piston is simple especially.And do not need driving device is moved to next piston from a piston.When the quantity of driving device was supplied with number of cylinders in corresponding to device, simple (electronics) control tool can be implemented to change.Yet, also may be guided to continuously the next one in a plurality of new supply cylinders all the time if conversion equipment is guaranteed driving device with the driving device work of lesser amt (only having one under the minimum situation).
Piston preferably has reflux barrier, and after working fluid was ejected by piston, piston can not particularly back on its previous position from the final position after all working fluid is all injected from its position that has reached like this.Can guarantee to stop backfill by this method, and therefore get rid of probability reliably with the medium work that do not sterilize.
But preferably have an irreversible opening and transmit packing ring in supply cylinder exit.This measure has also stoped the probability of using the medium that do not sterilize.Further, but the transmission packing ring of this irreversible opening can construct very simply in such a way and design, in this manner, cylinder is in the appropriate location or when it was driven for the first time, this packing ring was opened automatically when supplying with.Because employed here pressure is very high, also can construct the transmission packing ring like this, make and when exerting pressure for the first time, open automatically.
Preferably have a cross box, wherein hold one group and supply with cylinder.This makes that the operation of device under following two kinds of situations is simple especially, a plurality of supply cylinders be inserted in the utensil process neutralization when single driving device when a supply cylinder is transposed to another.Cross box preferably includes hermetically around the chamber of supplying with cylinder.In this case, supply with cylinder and can construct with thin especially wall, it increases expansion with pressure, becomes the wall that is listed in cross box then.This container also can be made sufficiently stable shape need not become the shape that is fit to housing with renitency.
Gathering-device preferably is provided in cross box, arrives catheter pressure from a plurality of supply cylinders with the guiding working fluid.Be made in like this when being particularly advantageous when each supplies with cylinder guiding working fluid with overlap mode.
Exhaust apparatus preferably is provided, particularly removes air from the duct portion of supplying with between cylinder outlet and catheter pressure simultaneously, therefore do not have the interruption of working fluid or the release of fluctuation and residual air.Preferably this exhaust apparatus is arranged in the cross box.
In one embodiment of the invention, cross box is fixedly connected to catheter pressure and plans and only uses once.In this case, cross box may manufactured person be filled the supply cylinder, so do not save the advantage of working fluid (supplying with cylinder in addition) although do not reentry, other advantage of enumerating more than all still obtains keeping.Special in this case advantage is that operation is simple and easy, particularly considers aseptic standard.
The preferred embodiment of the present invention will become obviously owing to dependent claims and following exemplary embodiments, and it will be set forth with reference to the accompanying drawings in more detail, wherein
Fig. 1 is the generalized section that has the first embodiment of the invention of inserting case before driving.
Fig. 2 has shown during cylinder drives the starting stage layout according to Fig. 1.
Fig. 3 has shown between the working fluid ejection time layout shown in previous.
Fig. 4 has shown the layout shown in previous when is supplied with cylinder emptying and another and supplies with cylinder and driven.
Fig. 5 is the part perspective view of arranging according to Fig. 1-4.
Fig. 6 is a part perspective view in accordance with another embodiment of the present invention.
Fig. 7 is the part exploded view of arranging according to Fig. 6.
Fig. 8 is the sketch map that is used for according to the control mode of Fig. 1-5 layout.
In the following description, identical Reference numeral is used for representing same parts or has the parts of said function.
In first embodiment of the invention, as shown in Fig. 1-5, have an apparatus shell 1, be included in an opening 2 of its front, cross box 40 can insert in this opening.
Cross box comprises that a plurality of supply cylinder 10-1 are to 10-n; 8 such supply cylinders 10 are arranged among the embodiment shown here.Obviously, the situation in the accompanying drawing is to supply with cylinder 10 directly to construct in cross box or formed by cross box itself, and does not insert isolating cylinder.
Each supplies with the piston 12 that cylinder 10 comprises sealing cylinder one end.Supplying with cylinder 10 inside, working fluid, particularly woods lattice (Ringer) solution are with a kind of anti-leaking method sealing.
Each supply cylinder is connected with an outlet 13 with collection conduit 45, and it is connected to catheter pressure 20 successively.
As shown in the amplifier section of Fig. 4, piston 12 comprises that one remains on reflux barrier 14 on its final position with piston 12, i.e. position when all fluids have all been discharged is as the known nonrecoverable syringe that is used for itself.
The driving device 30-1 that provides is in addition arranged to 30-n in housing 1, it is shown as hydraulic cylinder at this, but can certainly be designed to driven by power recirculation ball screw etc.
Each driving device 30 comprises a plunger 31 that is arranged in the housing 1, and so when cross box 40 was in position gone up, actuation plunger 31 was positioned at its piston of facing 12 opposites.
Fig. 1 shows on position, i.e. the position of these assemblies after cross box 40 has just inserted in the housing 1.On this position, it is empty that collection channel 5 and catheter pressure 20 remain.
Now, when the first driving device 30-1 is activated, make that its plunger 31 is subjected to drive forward, this plunger extrusion piston 12 as shown in Figure 3 enters in the supply cylinder 10, make fluid 11 first outlet 13 supplying with cylinder 10-1 of flowing through enter collection channel 45, and the latter that flows through enters in the catheter pressure 20, and it is inducted into (not shown) in the work apparatus with fluid.
Supply with cylinder 10-1 and just turn (referring to Fig. 4) when first, another is supplied with cylinder 10-n and is subjected to " starting " working fluid 11 with plunger 31 its storages of release by associating driving device 30-n.In this case, the piston 12 of the supply cylinder 10-1 of emptying is retained on its final position by reflux barrier 14.Therefore, can not cause all that from supplying with any power that fluid applied that cylinder 10-n occurs and that collection conduit 45, exist piston 12 is to pushing back.
Especially, embodiment shown in Fig. 6 and 7 is that with the difference of the embodiment that shows according to Fig. 1-5 cross box 40 comprises chamber 42, and single supply cylinder 10 can be used as separation " member " and inserts in the chamber 42.In this layout, cross box 40 can allow to be provided with continuously and supply with cylinder 10-1 to 10-n around its axle rotation, makes their outlet 13 be connected to sealing device 43, and its leakproof of regulating between joint supply cylinder 10 and the catheter pressure 20 connects.These accompanying drawings have shown an open needle tubing 44, provide this needle tubing in order to open the shutoff device (not shown) in the outlet 13 of supplying with cylinder 10; As long as sealing device 43 is towards outlet 13 compressions, this needle tubing is opened the shutoff device of corresponding supply cylinder 10.The conversion of the supply cylinder 10 that the rotation by cross box 40 causes, thus be equivalent to the displacement of the cartridge of (perhaps in the porch of leading to it) in the cylinder of revolver to a certain extent.
Fig. 8 height has schematically shown the control mode that is used for according to the utensil of Fig. 1-5.
This control mode comprises a computer 25, and itself and driving device 30-1 are to the 30-n control connection.The present invention exerts pressure on the piston 12 of supplying with cylinder 10 to the plunger 31 of 30-n as the driving device 30-1 of motor driver (for example, recirculation ball screw) structure.The power of Shi Yonging can be passed through Current Control in this embodiment, wherein by computer 25 drive motor M
1-M
n
The outlet of supplying with cylinder 10 is connected to collection conduit 45.Between a plurality of supply cylinders 10 and collection conduit 45, provide reflux barrier 14, here it is configured to reflux inlet, to such an extent as to so the pressure that is provided with in the collection conduit 45 acts on the piston 12 in no instance, and piston is not driven by corresponding power for 12 this moments.
Between collection conduit 45 and catheter pressure 20, lead to work apparatus 5 places exhaust apparatus 46 is provided.
Rail sensor 32 is provided in addition, when associating plunger 31 arrives the final position, sends a signal at least to computer 25.
Have layout shown in Figure 8 also may driver 30-1 to 30-n, so supplying with cylinder can be drained one by one, even their empty stage is when overlapping, the operator is not bothered by the fluctuation of the pressure generation of working fluid like this.
From as can be known above, the elaboration to single combination of features here obviously is easy to realize.For example, case shown in Fig. 6 and 7 also can replace with (only having used once) among Fig. 5.Here the control of the computer 25 of Xian Shiing is certainly substituted by the cam disc machinery of correspondence.
The Reference numeral table
1 apparatus shell
2 openings
5 work apparatus
10 supply with cylinder
11 fluids
12 pistons
13 outlets
14 reflux barrier
20 catheter pressures
25 computers
30 driving devices
31 plungers
32 rail sensors
40 cross boxs
41 carriages
42 chambeies
43 sealing devices
44 opening needle tubings
45 collection conduit
46 exhaust apparatus
50 conversion equipments
Claims (10)
1, be used for the water jet utensil of surgery, comprise:
A plurality of supply cylinders (10) that store working fluid (11), this fluid can enter catheter pressure (20) by outlet (13) by enough pistons (12),
The driving device (30) of at least one driven plunger (12) and
Be driven into the conversion equipment (50) that another supplies with the piston (12) of cylinder (10-n) from piston (a 12) conversion of supplying with cylinder (10-1), make working fluid (11) spray and enter catheter pressure (20) from the supply cylinder (10) that is drained continuously;
It is characterized in that: cross box (40) as one closely the unit hold one group and supply with cylinder (10);
Wherein, this group is supplied with cylinder (10) and is directly constructed in cross box, or is formed by cross box itself;
Perhaps wherein cross box (40) comprises a plurality of supply cylinder (10) chambeies (42) on every side that closely are looped around, and single supply cylinder inserts in the chamber (42) as separating member.
2, utensil according to claim 1 is characterized in that: the consecutive periods that conversion equipment (50) is designed to driven plunger (12) overlaps each other, and makes the fluid (11) that enters catheter pressure (20) interruptedly not discharge.
3, utensil according to claim 1 and 2 is characterized in that: the fluid-encapsulated outlet of sealing device (43) (13).
4, utensil according to claim 1 and 2 is characterized in that: a plurality of driving devices (30-n) are provided.
5, utensil according to claim 1 and 2 is characterized in that: piston (12) comprises reflux barrier (14), makes piston (12) when the position that a working fluid of arrival (11) has been discharged, and this piston can not push back to previous position.
6, utensil according to claim 1 and 2 is characterized in that: in outlet (13) but locate to provide an irreversible opening to transmit packing ring.
7, utensil according to claim 1 is characterized in that: cross box (40) locate to provide gathering-device (45) with the guiding working fluid (11) from a plurality of supply cylinders (10) to catheter pressure (20).
8, utensil according to claim 1 and 2 is characterized in that: exhaust apparatus (46) is removed air from outlet (13) and the duct portion between the catheter pressure (20) of supplying with cylinder (10) simultaneously.
9, utensil according to claim 8 is characterized in that: exhaust apparatus is arranged in the cross box (40).
10, utensil according to claim 7 is characterized in that: cross box (40) irreversibly is connected to catheter pressure (20), uses the unit separately to form one.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004017261.7 | 2004-04-07 | ||
| DE102004017261 | 2004-04-07 | ||
| DE102004021035.7 | 2004-04-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1937965A CN1937965A (en) | 2007-03-28 |
| CN100488463C true CN100488463C (en) | 2009-05-20 |
Family
ID=37955095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800100367A Expired - Fee Related CN100488463C (en) | 2004-04-07 | 2005-03-18 | Water jet surgery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100488463C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011177407A (en) * | 2010-03-03 | 2011-09-15 | Seiko Epson Corp | Fluid injection device |
| US10098656B2 (en) | 2013-04-03 | 2018-10-16 | Procept Biorobotics Corporation | Water enucleation of the prostate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1402632A (en) * | 1972-02-02 | 1975-08-13 | Wilkinson Sword Ltd | Medical equipment |
-
2005
- 2005-03-18 CN CNB2005800100367A patent/CN100488463C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1402632A (en) * | 1972-02-02 | 1975-08-13 | Wilkinson Sword Ltd | Medical equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1937965A (en) | 2007-03-28 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20200318 |