CN1056636A - The intubate of microsurgery - Google Patents
The intubate of microsurgery Download PDFInfo
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- CN1056636A CN1056636A CN 90103734 CN90103734A CN1056636A CN 1056636 A CN1056636 A CN 1056636A CN 90103734 CN90103734 CN 90103734 CN 90103734 A CN90103734 A CN 90103734A CN 1056636 A CN1056636 A CN 1056636A
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- suction pipe
- intubate
- pipe
- hole
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Abstract
The intubate of microsurgery comprises a suction pipe 2 that is connected with an end of hollow joint 1, is provided with on its free-ended side surface and inhales hole 6.Suction pipe 25 has the horizontal continuous cross-section area of unidirectional expansion to joint 1 direction along its length from free end.
Description
The intubate that known trickle surgery is used (is consulted, the Gai Si of the Federal Republic of Germany in 1981, the catalogue of Qin Da company, the 31st page, catalog number (Cat.No.) G-15280, G-15285) be provided with a suction pipe, an end of this suction pipe is connected with a hollow joint, and has one inhale the hole on the side surface of one opposed free ends.Suction pipe has the horizontal continuous cross-section area of fixed circle along its length from free end to the joint direction.
Above-mentioned intubate is connected with connection tube or attraction system by the conical conjugate foramen in the joint, and makes by means of this connection tube or attraction system to produce vacuum in suction pipe.Removing the vacuum that the back dependence of lenticular nuclear is produced, sucking-off from phacocyst (eliminating) substance of lens.But the characteristics of known intubate are that the efficient that attracts is lower.This low attraction efficient depends on the density [cortical layer (CnoeB)] of the structure and specification and the substance of lens of suction pipe, and this density is in the scope of 15.7 to 32 pools, and is in addition, also relevant with the profile size with the structure of crystalline solid.
The structure and specification of suction pipe is as follows to attracting effectiveness affects: limit in strictness under the situation of external diameter of suction pipe (from 0.4 to 1 millimeter), the internal diameter size of suction pipe is the 0.16-0.8 millimeter, and at this moment the interior cross-sectional area of suction pipe is in 0.08 to 2 square millimeter of scope.The external diameter of choosing any suction pipe is by the physiological characteristics decision of method that undergos surgery and eyes to be performed a surgical operation.Like this, the substance of lens for the sucking-off greater density just needs to use the intubate with big continuous cross-section area.But the inner section area is big more, and outer dia is also just big more.Thereby the exterior surface area that the suction pipe of known intubate is big contacts with biological tissue and can cause the additional damage of biological tissue.Use the intubate of less external diameter for the bigger substance of lens of sucking-off density, owing to having increased the increase that flowed friction causes time of attracting, perhaps can cause the increase of the level of vacuum that produces in the suction pipe, this can cause the additional wound of biological tissue, and the result causes the trouble of performing the operation, for example, may stave phacocyst.Very big influence takes place to flowed friction in the area in hole.In known intubate, the attraction hole of side is done circular, and its diameter can not surpass the diameter of suction pipe inner section and can not influence reducing of the flowed friction that leads to the suction pipe input end in this case.
As basis of the present invention, its task is to make the intubate that trickle surgery feasible on the sort of suction-pipe structure is used, this intubate guarantees to improve its safe coefficient to reduce the eyes wound, and its method is to reduce flowed friction and to shorten the sucking-off time and improve sucking-off efficient.
Above proposing of task is to solve like this, promptly the intubate according to microsurgery of the present invention contains a suction pipe, one end of this suction pipe is connected with hollow joint, and on its relative free-ended side surface, have a suction hole, and the cross-sectional area that has laterally continuous (break-through) of unidirectional expansion along its length from free end to the joint direction.
Compare with intubate with fixed continuous transverse section, the suction pipe of horizontal continuous cross-section that has the passage of unidirectional expansion can make flowed friction reduce, this just can reduce the time of removing the substance of lens stage, thereby shortened medical apparatus and instruments and contacted time of eye tissue (influence that contacts), also just can reduce the damage of tissue.In addition, under same flowed friction, allow to make suction pipe freedom (operation) end (medical apparatus and instruments of small and exquisite exquisiteness) of reduced size in the proposed intubate of the present invention, this also can reduce the wound of tissue.The suction pipe of making the horizontal continuous cross-section area with unidirectional expansion also helps the convenient washing of suction pipe and pre-sterilization to clean.
To inhale the hole in order on the side surface of suction pipe, reasonably being provided with, will to inhale the hole and make oval-shapedly, make of the longitudinal axis configuration of its major axis, and institute has an area, above the horizontal continuous cross-section area of the suction pipe in this hole scope along suction pipe.
Such structure implements and is beneficial to the input resistance that reduces in the cannula passage.Make the form that oval-shaped suction hole can form the inlet flow of best (optimum) substance of lens in the porch of suction pipe, this material is sucked out along the longitudinal axis of suction pipe.In addition, under the bigger situation of substance of lens density, the phenomenon of inlet flow blocking-up can not take place, and in the porch of the suction pipe of intubate with might reduce the big ups and downs of pressure in capsulociliary whole volume, this point is particularly important in the operation of " sealing " camera oculi posterior." sealing " camera oculi posterior is the operation that the corneal place makes mini-incision and gives to be carried out under the necessary notes wash liq situation.In this case, must create a fixed pressure condition in camera oculi posterior, the influx of liquid should equal its discharge.The huge fluctuation of pressure can cause hemorrhage and outer (damage) wound of ocular tissue.
Needed is to make suction pipe have the section of circular laterally continuous (flaring).
When carrying out the intubate operation with the sealing camera oculi posterior, such section and prior art (originally) cylindrical suction pipe comparison like that can guarantee the surgical wound excellent sealing.In addition, under the horizontal continuous cross-section situation of circle, can dwindle otch (wound of operation) size, this just can reduce the wound phenomenon of operation.According to the present invention, use the suction pipe have circular laterally continuous cross-section can cover the area of operative region minimumly because with the original form of its prior art relatively, might dwindle the diameter of suction pipe working end.
It is possible making suction pipe have oval-shaped laterally continuous (flaring) section.
When " sealing " camera oculi posterior is operated, enforcement on such suction-pipe structure, with guaranteeing the preferably sealing of surgical wound, because it has the shape of sucking-off, and oval-shaped section can reduce concentrate (tension force of tissue) of surgical wound (at two ends) to greatest extent.Elliptic jet can make intubate enter the surgical wound place than circular cross section better, because elliptical section is at the frame circle of more approaching operation in shape.
It is possible making suction pipe have laterally continuous (flaring) section of Radix Crotalariae szemoensis shape.
Such transverse section and circular and oval-shaped section relatively can guarantee during operation after carrying out " sealing " eye that minimizing imports blocking of suction hole.Forward camera oculi posterior can not cover input hole.
Reasonably in the suction pipe outside, leave space ground coaxial with it disposes a syringe pipe.This syringe pipe has oval laterally continuous cross-section, from the unidirectional expansion of the free end that end-face hole is set.In this case, a free end that has a suction pipe of inhaling the hole should stretch out outside the syringe pipe.
An otch can be only implemented in the existence of syringe pipe when undergoing surgery, in this case, provide the probability of carrying out mini-incision, thereby reduced wound.In addition, can also make the wound of operation obtain optimum sealing.According to the present invention, the existence of syringe pipe can rely on the foundation of best flushing liquor cycling condition, shortens the flushing (time) of substance of lens.
In order when intubate is introduced surgical wound, to reduce the tension force of tissue, must make the syringe pipe in the end-face hole scope have well-balanced inclined-plane, these inclined-planes are the longitudinal axis that favour syringe pipe towards the major axis of oval-shaped sucker with pure angle.This syringe pipe is connected with suction pipe on smaller length in self end face scope.
Such structure makes the injury (causing wound when the inclined-plane is provided with the right angle when intubate is inserted wound) that can reduce tissue when using intubate, in addition, because the increase of useful area might guarantee laminar flow.
Explanation of the present invention is to quote the following drawings example is elaborated.
Fig. 1 represents to carry out according to the present invention total figure of the intubate of microsurgery;
The view of Fig. 2 for being done with the arrow A direction of Fig. 1, one of the intubate that expression is used according to the present invention is inhaled the hole;
Fig. 3 is III-III profile of Fig. 1, the circular laterally continuous cross-section of the intubate suction pipe that expression is used according to the present invention;
Fig. 4 is IV-IV profile of Fig. 1, the oval-shaped transverse section of the intubate suction pipe that expression is used according to the present invention;
Fig. 5 is V-V profile of Fig. 1, and expression is according to the transverse section of oblate (Seem Lablab Album) shape of intubate suction pipe of the present invention;
Fig. 6 represents to be equipped with according to the present invention total figure of the intubate that the trickle surgery of syringe pipe uses;
Fig. 7 is Fig. 6 VII-VII cutaway view;
The view of Fig. 8 for being done with the arrow B direction of Fig. 6.
The intubate that the trickle surgery of made is used according to the present invention includes a hollow joint 1, and as shown in Figure 1, this joint is in order to be connected with syringe (not drawing among the figure) or attraction system (not drawing among the figure), and a suction pipe 2 that is connected with the one end.The inner passage 3 of suction pipe 2 is to be connected with conical conjugate foramen 4 in the joint 1.Be provided with one and inhale hole 6 on the side of the relative free end 5 of suction pipe 2, suction pipe 2 is along its length, and 1 direction has the horizontal continuous cross-section of the unidirectional expansion of inner passage 3 from free end 5 to joint.
On the free end 5 of suction pipe 2, inhale hole 6(as shown in Figure 2) be ovalize, and its area of having, surpass area at the horizontal continuous cross-section of the scope inner suction pipe 2 of inhaling hole 6.In this case, the major axis 7 of inhaling hole 6 is along longitudinal axis 8 configurations of suction pipe 2, as shown in Figure 1.The trickle operating intubate operation made according to the present invention is as follows:
Joint 1(Fig. 1) is connected with syringe or attraction system (not drawing among the figure) by conical conjugate foramen 4.One free end 5 of suction pipe 2 through the tissue otch and introduce eye's lens capsule (not drawing among the figure).In suction pipe 2, produce vacuum by syringe or attraction system, simultaneously the eye's lens material is sucked out from phacocyst through inhaling hole 6.Because inhaling hole 6 can be made into oval-shaped, the resistance of the input of the passage 3 that enters intubate is reduced, and the formation of the best (optimum) mode of the input liquid stream of substance of lens is provided, this substance of lens will be along the longitudinal axis 8 of suction pipe 2 and is sucked out.Because flowed friction is smaller, thereby substance of lens is excluded the used time in stage and can shortens widely.This flowed friction is why smaller to be to have the cause of suction pipe 2 of the horizontal continuous cross-section of unidirectional expansion owing to made from free end 5 to joint 1.Simultaneously, this has also shortened the time of contact of medical apparatus and instruments and ocular tissue, therefore just can reduce the wound accident of ocular tissue.
According to the method for getting rid of substance of lens with the physiological property of the eyes of waiting to perform the operation, suction pipe 2 can have various transverse shape.
One circular laterally continuous cross-section 9 of the suction pipe 2 that for example in Fig. 3, lists.Such section 9 is compared with cylindrical suction pipe originally, is carrying out intubate with " sealing " camera oculi posterior when performing the operation, and as described above, can guarantee the good airtight of surgical wound.In addition, under the situation of the horizontal continuous cross-section 9 of circle, can reduce the size of operative incision (wound), thereby can reduce the wound of operation.The suction pipe 2 that has such section 9 can cover to Min. the area of operative region.
Use suction pipe 2 in some cases, as shown in Figure 5 with oblate horizontal continuous cross-section 11.Such section 11 and circular cross section 9(are as shown in Figure 3) or elliptical section 10(is as shown in Figure 4) compare, when carrying out the operation of " sealing " camera oculi posterior, can guarantee to reduce the blocking of suction hole 6 of input.
Be equipped with the horizontal continuous cross-section of various differences as 8(as shown in Figure 3), 9(is as shown in Figure 4) or 10(as shown in Figure 5) operation of the intubate of suction pipe 2, similar described above.
Wound when only making a mini-incision and undergo surgery in order to reduce, simultaneously also optimum airtight and in order to shorten flushing by means of the foundation of the best cycling condition of flushing liquid to substance of lens for surgical wound is realized, make Intubaction device one syringe pipe 12 of being advised, as shown in Figure 6.
In order to reduce caused tissue tension when intubate is inserted operative incision, as shown in Figure 7 at the syringe pipe 12(in end hole 14 zones) be provided with some well-balanced inclined-planes 20, (as shown in Figure 8).These inclined-planes are at the longitudinal axis 21 that favours syringe pipe 12 towards major axis 7 directions of oval-shaped sucker 6 with obtuse angle alpha.Syringe pipe 12 is in the zone of its end face 22 simultaneously, and a very little segment length is to be connected with suction pipe 2, as shown in Figure 7.Many well-balanced inclined-plane 20(Fig. 8 on syringe pipe 12), except when intubate is introduced surgical wound, can reducing the wound of tissue, can also guarantee streamlined formation by means of the reinforcement of effective exercise.
Above-mentioned syringe pipe 12 is used for having the circular laterally intubate of continuous cross-section 9 (suction pipe 2(Fig. 7).In this case, the outside diameter d of suction pipe 2 equals the size B of small-sized half axle (minor axis) of the elliptical section of syringe pipe 12.
Made according to the present invention, adopt the intubate of syringe pipe to operate in the following manner.
Joint 1(Fig. 6) is connected by means of the attraction pipeline of conical conjugate foramen 4 with attraction-rinse-system (not drawing among the figure).Similarly joint 18 is connected with the flushing pipe of this system by means of conical connecting hole 19.The free end 5 of suction pipe 2 is inserted phacocyst (not listing among the figure).Flow of liquid is then by union joint 18, pipe 17, connection tube 16, the inner passage 23 of cell 15 and syringe pipe 12 and supplying with.This liquid is at formed hole 14(from the end face 22 of syringe pipe 12 as shown in Figure 7) when flowing out, just wash substance of lens, simultaneously by inhaling hole 6(as shown in Figure 6) inner passage of suction pipe 2 and get rid of or inhale and remove the substance of lens that is rinsed out by the joint 1 that is connected with corresponding tubing.
In order to make suction pipe 2 more convenient in the use, syringe pipe 12 can be made forniciform (not drawing among the figure).
The intubate of the microsurgery that made this suggestion is used according to the present invention because it is made the suction pipe with horizontal continuous cross-section of unidirectional expansion from the free end to the joint, reduces to original 1/2.5 with the flowed friction that guarantees to make suction pipe.This compares with regard to making with original intubate, under the situation of the free end size constancy of suction pipe, makes sucking-off substance of lens stage time decreased 1/1.5.In this case, can reduce the wound of eye tissue widely.(in addition), on the end face of syringe pipe, make the inclined plane, rely on distribution of liquid stream can improve the efficient of washing substance of lens, simultaneously, owing to selected the relation of syringe pipe inner passage cone angle, made in the exit of syringe pipe and obtain optimum flow stream pressure.
Claims (7)
1, a kind of intubate of microsurgery, comprise a suction pipe 2, its end links to each other and have one on the side surface of a relative free end 5 with hollow joint 1 and inhales hole 6, it is characterized in that described suction pipe 25 has the laterally cross-sectional area of (break-through) continuously of unidirectional expansion to joint 1 direction along its length from free end.
2, intubate according to claim 1, it is characterized in that the suction hole 6 that is provided with is oval-shaped on the side surface of described suction pipe 2, the major axis that makes the hole is along the longitudinal axis configuration of suction pipe, and institute has area, surpasses the horizontal continuous cross-section area of the suction pipe 2 in these hole 6 scopes.
3, intubate according to claim 2 is characterized in that described suction pipe 2 has circular horizontal continuous cross-section 9.
4, intubate according to claim 2 is characterized in that described suction pipe 2 has oval-shaped horizontal continuous cross-section 10.
5, intubate according to claim 2 is characterized in that described suction pipe 2 has the horizontal continuous cross-section 11 of lenticular shaped.
6, intubate according to claim 3, it is characterized in that in described suction pipe 2 outsides, dispose a syringe pipe 12 coaxially and with it with leaving the space, described syringe pipe has the oval laterally continuous cross-section from the free end 13 unidirectional expansions that end-face hole 14 is set, in this case, the free end 7 that has a suction pipe 2 of inhaling hole 6 should stretch out outside the syringe pipe 12.
7, intubate according to claim 6, it is characterized in that in end-face hole 14 scopes, having syringe pipe 12 to have well-balanced inclined-plane 20, these inclined-planes are to favour the longitudinal axis 21 of syringe pipe 12 towards the major axis 7 of oval-shaped sucker 6 with obtuse angle alpha, and are connected with suction pipe 2 on smaller length in self end face 22 scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103734 CN1056636A (en) | 1990-05-19 | 1990-05-19 | The intubate of microsurgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103734 CN1056636A (en) | 1990-05-19 | 1990-05-19 | The intubate of microsurgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1056636A true CN1056636A (en) | 1991-12-04 |
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ID=4878219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90103734 Pending CN1056636A (en) | 1990-05-19 | 1990-05-19 | The intubate of microsurgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1056636A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909859B (en) * | 2004-01-23 | 2010-05-12 | 伊萨恩斯外科手术股份有限公司 | Composite ophthalmic microcannula |
| CN108024820A (en) * | 2015-08-25 | 2018-05-11 | 阿坎迪斯有限两合公司 | Medical suction system and medical thrombectomby system |
-
1990
- 1990-05-19 CN CN 90103734 patent/CN1056636A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909859B (en) * | 2004-01-23 | 2010-05-12 | 伊萨恩斯外科手术股份有限公司 | Composite ophthalmic microcannula |
| CN108024820A (en) * | 2015-08-25 | 2018-05-11 | 阿坎迪斯有限两合公司 | Medical suction system and medical thrombectomby system |
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| C06 | Publication | ||
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |