CN202052189U - Anal pre-dilator - Google Patents
Anal pre-dilator Download PDFInfo
- Publication number
- CN202052189U CN202052189U CN2010206512443U CN201020651244U CN202052189U CN 202052189 U CN202052189 U CN 202052189U CN 2010206512443 U CN2010206512443 U CN 2010206512443U CN 201020651244 U CN201020651244 U CN 201020651244U CN 202052189 U CN202052189 U CN 202052189U
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- CN
- China
- Prior art keywords
- drive link
- push rod
- support
- anus
- anal
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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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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The utility model discloses an anal pre-dilator which is used for pre-dilating of an anus and an anal tube and comprises a bracket, a muscle expanding plate, a push rod and a linkage mechanism, wherein the push rod penetrates through the bracket and carries out axial motion along the bracket; the muscle expanding plate is connected with the bracket through the linkage mechanism and carries out radial motion at the far end of the bracket; and the linkage mechanism allows the push rod to move along the axis of the bracket, so as to form the radial movement of the muscle expanding plate at the far end of the bracket. The anal pre-dilator has the beneficial effects that the anus and the anal tube of the patient can be gradually and controllably expanded, and the anal sphincter can adapt to the extent dilated by an anal dilator seat before the anal pre-dilator is inserted into the anal dilator seat, so that the anal fissure can be avoided, and the pain of the patient is relieved.
Description
Technical field
This utility model relates to the anus pre-expansion device that a kind of surgical operation is used, and belongs to technical field of medical instruments.
Background technology
When anorectal surgical is done inspection, diagnosis or operative treatment, need earlier anus to be strutted, and then put into other and be used to the surgical instruments checking or treat.The surgical instruments that struts anus commonly used at present is an anus dilator seat, comprise a columnar body and the application of force convex shoulder that is positioned at the body afterbody, its inflexible cylinder body can strut anus, and the intravital hollow space of cylinder then constitutes other surgical instrumenties and enters the intravital passage of patient.During use, the body of anus dilator seat is slowly inserted anus until anal canal by its front end, because the diameter of the cylinder body of anus dilator seat bigger (generally reaching more than 30 millimeter) usually, so anus dilator seat is not easy to enter anus.Existing common way is that the doctor can insert patient's anus with finger earlier, and two handss firmly outwards strut then, again anus dilator seat are inserted anus.Because when the doctor used finger pre-expansion anus, the anal sphincter damage patient caused anal fissure because moment exerts oneself excessive through regular meeting, makes patient be subjected to unnecessary injury.
The utility model content
In view of the defective that above-mentioned prior art exists, the purpose of this utility model is to propose a kind of anus pre-expansion device that can avoid anal fissure.
The purpose of this utility model will be achieved by the following technical programs:
A kind of anus pre-expansion device comprises support, musculus expansor sheet, push rod and linkage; Described push rod through described support, and can carry out axially-movable along described support; Described musculus expansor sheet is connected with support by linkage, and can do radial motion at described rack far end, and described linkage makes described push rod form the radial motion of described musculus expansor sheet at described rack far end along the axial-movement of support.
Further, described linkage comprises transmission component and sliding shoe, and described transmission component comprises pin and drive link, and described sliding shoe is arranged on the far-end of described push rod, and described drive link is connected on sliding shoe or the support by pin.
Further, described drive link comprises first drive link and second drive link; The near-end of described first drive link is articulated on the described support by first pin, and described musculus expansor sheet vertically is fixedly connected on the far-end of described first drive link; The near-end of described second drive link is articulated on the described sliding shoe by second pin, and the far-end of described second drive link is articulated on described first drive link by the 3rd pin.
Further, the near-end of described push rod is connected with a round handle.
Further, described push rod is a screw rod, carries out threaded engagement with described support, and described sliding shoe is connected in the far-end of described push rod by a circumferential slot structure, can relatively rotate thereby make between described sliding shoe and the described push rod.
Further, the described musculus expansor sheet laminated structure that is the circular arc outer peripheral face.
Further, described support is cross structure, and is hinged with four first drive links on the described support symmetrically.
Further, described support is the collar plate shape structure, and is hinged with at least two first drive links on the described support equably, connects 1 musculus expansor sheet on each first drive link.
Compared with prior art, the beneficial effects of the utility model are mainly reflected in: can be so that patient's anus and anal canal little by little, controllably increase, before inserting anus dilator seat, can make anal sphincter adapt to the amplitude that can be strutted by anus dilator seat, thereby can avoid the generation of anal fissure phenomenon, alleviate patient's misery.
Description of drawings
Fig. 1 is the schematic perspective view of first embodiment of this utility model anus pre-expansion device.
Fig. 2 is the front view of first embodiment of this utility model anus pre-expansion device.
Fig. 3 is the schematic perspective view of second embodiment of this utility model anus pre-expansion device.
Fig. 4 is the front view of second embodiment of this utility model anus pre-expansion device.
Among the figure:
1 support, 2 push rods, 21 handles
22 sliding shoes, 3 second drive links, 31 second pins
32 the 3rd pins, 4 first drive links, 41 first pins
5 musculus expansor sheets
The specific embodiment
Shown in Fig. 1-4, a kind of screw type anus of this utility model pre-expansion device generally comprises support 1; Through support 1, and the push rod 2 that can move along this support 1 axis; And be connected in the musculus expansor sheet 5 of support 1 by linkage, and musculus expansor sheet 5 can be done radial motion at the far-end of support 1, and described linkage makes push rod 2 be transformed into musculus expansor sheet 5 along the axial-movement of support 1 and moves radially extending out of support 1 far-end.Described linkage comprises a transmission component at least, described transmission component comprises at least one first drive link 4, the near-end of first drive link 4 is arranged on the support 1 by one first pin, 41 pivots, musculus expansor sheet 5 is fixedly installed on the far-end of first drive link 4, and the effect end of musculus expansor sheet 5 is away from first drive link 4; And being arranged on second drive link 3 between the push rod 2 and first drive link 4, described transmission component is driven by push rod 2, and converts the axially-movable of push rod 2 to first drive link 4 rotatablely moving around first pin 41.
[first embodiment]
Shown in Fig. 1-2, the screw type anus pre-expansion device in the present embodiment comprises the support 1 of cross structure, through support 1, and the push rod 2 that can move along this support 1 axis; Four symmetries are articulated in first drive link 41 on the described support 1, and its near-end is arranged on the support 1 by first pin, 41 pivots.In the present embodiment, first drive link 4 is a L type structure.The far-end of described first drive link 41 is set with musculus expansor sheet 5, and the effect end of musculus expansor sheet 5 is away from first drive link 4, and the axis of musculus expansor sheet 5 is parallel to the axis of push rod 2, thereby makes musculus expansor sheet 5 can radially extend out motion better.
In the present embodiment, described linkage also comprises the sliding shoe 22 that is arranged on push rod 2 far-ends; Second drive link 3 is arranged on the sliding shoe 22 by one second pin, 31 pivots, and the far-end of second drive link 3 passes through the 3rd pin 32 pivots in first drive link 4.Described sliding shoe 22, second drive link 3, first drive link 4 form one group of four-bar mechanism.
Sliding shoe 22 in the present embodiment is a corresponding cross type structure.Certainly, sliding shoe 22 also can be other structures.Push rod 2 is connected in support 1 by helicitic texture, and sliding shoe 22 is connected in the far-end of push rod 2 by a circumferential slot structure, thereby sliding shoe 22 and push rod 2 can be relatively rotated.Owing to reach axial restraint by the circumferential slot structure, circumferentially function is a common practise in relative rotation, therefore repeats no more.Preferably, helicitic texture of the present utility model also can be variable pitch screw, thereby can change the amplitude of musculus expansor.
In the present embodiment, the near-end of push rod 2 also is connected with the handle 21 of a collar plate shape, makes that the medical worker in use can be more comfortable, convenient.Musculus expansor sheet 5 is the laminated structure of circular arc outer peripheral face, and coats the slick thin film of one deck at its outer surface, and such structural design can alleviate the sense of discomfort of bringing to patient when expanding anus.
[second embodiment]
As shown in Figure 3-4, the support 1 of the screw type anus pre-expansion device in the present embodiment is the collar plate shape structure, and is hinged with several first drive links 4 on the support 1 symmetrically.Preferably, be hinged with at least 3 groups first drive link 4 on the support 1 symmetrically.Identical among all the other structures in the present embodiment and first embodiment do not repeat them here.
Simply introduce use of the present utility model below:
At first, adjust push rod 2, make musculus expansor sheet 5 be in the state that closes, and be inserted in the patient's anus; Then, precession push rod 2, make push rod 2 move to far-end (being in the patient body), at this moment, the power that second drive link 3 is expanded outwardly drives first drive link 4 and also expands outwardly, thereby having driven expansion anus sheet 5 expands outwardly, the precession push rod 2 lentamente, when anal sphincter is expanded to suitable amplitude, stop precession push rod 2; At last, screw out push rod 2, make the musculus expansor sheet inwardly tighten, take out described screw type anus pre-expansion device, insert anus dilator seat and carry out follow-up inspection or operation.
This utility model still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming all drop within the protection domain of the present utility model.
Claims (7)
1. anus pre-expansion device is characterized in that:
Comprise support, musculus expansor sheet, push rod and linkage;
Described push rod in described support, and can carry out axially-movable along described support;
Described musculus expansor sheet is connected with support by linkage, and can do radial motion at described rack far end, described linkage makes described push rod form the radial motion of described musculus expansor sheet at rack far end along the axial-movement of support, described linkage comprises transmission component and sliding shoe, described transmission component comprises pin and drive link, described sliding shoe is arranged on the far-end of described push rod, and described drive link is connected on sliding shoe or the support by pin.
2. a kind of anus pre-expansion device according to claim 1, it is characterized in that: described drive link comprises first drive link and second drive link; The near-end of described first drive link is articulated on the described support by first pin, and described musculus expansor sheet vertically is fixedly connected on the far-end of described first drive link; The near-end of described second drive link is articulated on the described sliding shoe by second pin, and the far-end of described second drive link is articulated on described first drive link by the 3rd pin.
3. a kind of anus pre-expansion device according to claim 1, it is characterized in that: the near-end of described push rod is connected with a round handle.
4. a kind of anus pre-expansion device according to claim 1, it is characterized in that: described push rod is a screw rod, carry out threaded engagement with described support, described sliding shoe is connected in the far-end of described push rod by a circumferential slot structure, can relatively rotate thereby make between described sliding shoe and the described push rod.
5. a kind of anus pre-expansion device according to claim 1, it is characterized in that: described musculus expansor sheet is the laminated structure of circular arc outer peripheral face.
6. according to any described a kind of anus pre-expansion device among the claim 1-5, it is characterized in that: described support is cross structure, and is hinged with four first drive links on the described support symmetrically.
7. according to any described a kind of anus pre-expansion device among the claim 1-5, it is characterized in that: described support is the collar plate shape structure, and is hinged with at least two first drive links on the described support equably, connects 1 musculus expansor sheet on each first drive link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206512443U CN202052189U (en) | 2010-12-10 | 2010-12-10 | Anal pre-dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206512443U CN202052189U (en) | 2010-12-10 | 2010-12-10 | Anal pre-dilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202052189U true CN202052189U (en) | 2011-11-30 |
Family
ID=45012176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206512443U Expired - Fee Related CN202052189U (en) | 2010-12-10 | 2010-12-10 | Anal pre-dilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202052189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029012A (en) * | 2010-12-10 | 2011-04-27 | 苏州天臣国际医疗科技有限公司 | Anus pre-dilator |
-
2010
- 2010-12-10 CN CN2010206512443U patent/CN202052189U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029012A (en) * | 2010-12-10 | 2011-04-27 | 苏州天臣国际医疗科技有限公司 | Anus pre-dilator |
| CN102029012B (en) * | 2010-12-10 | 2014-07-02 | 苏州天臣国际医疗科技有限公司 | Anus pre-dilator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20121210 |