WO1994026344A1 - Non-traumatic expansion device of the cervical canal - Google Patents
Non-traumatic expansion device of the cervical canal Download PDFInfo
- Publication number
- WO1994026344A1 WO1994026344A1 PCT/IT1994/000053 IT9400053W WO9426344A1 WO 1994026344 A1 WO1994026344 A1 WO 1994026344A1 IT 9400053 W IT9400053 W IT 9400053W WO 9426344 A1 WO9426344 A1 WO 9426344A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- expansion device
- rod
- metal point
- point elements
- conical
- Prior art date
- 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.)
- Ceased
Links
Classifications
-
- 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
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/42—Gynaecological or obstetrical instruments or methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00535—Surgical instruments, devices or methods pneumatically or hydraulically operated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
Definitions
- the present invention relates to an expansion device of the cervical canal , which is introduced in said canal for example for diagnostic purposes, in the interruption of pregnancy, in all surgical operations which need the execution of the dilation of the cervical canal , etc. , and more particularly the invention relates to a non- traumatic expansion device, which after having been introduced in the cervical canal , allows to enlarge the latter progressively by exerting only radial pressures, and which therefore does not need to be extracted and inserted in the period of time within the single steps of the dilation operation.
- Hegar expanders are made of steel which can be sterilized in an autoclave, for example, or they are made of plastics and can be disposed of after use. They form a set of cylindrical instruments with a rounded point and a smooth surface, each one having an increased diameter with respect to a foregoing of the set.
- the object of the present invention is to eliminate the foregoing disadvantages, providing an expansion device whose introduction in the cervical canal requires only a moderate force, so that only one Museux pliers is requi red .
- Another object of the present invention is to provide an expansion device which exerts only radial pressures, so that it will be introduced only once into the cervical canal , and this will involve several advantages as regards a non-traumatic execution of the dilation operati on .
- Fig. la a longitudinal sectional view of the expansion device in the condition in which it is introduced in the cervi cal canal ;
- Fig. lb a front view of the expansion device shown in Fig. la, in the direction of the arrow A;
- Fig. 2a a longitudinal sectional view of the expansion device, in the condition in which it is extracted from the cervical canal after the dilation operation;
- Fig. 2b a front view of the expansion device shown in Fig. 2a, in the direction of the arrow B;
- Fig. 3 a perspective view of the expansion device in the condition in which it is introduced into the cervi cal canal ;
- Fig. 4 a perspective view of only the front part of the expansion device, in the condition in which it is extracted from the cervical canal ;
- Fig. 5 a longitudinal sectional view of a second embodiment of the expansion device according to the invention, in the condition in which the expansion device is introduced into the cervical canal ;
- Fig. 6 a longitudinal sectional view of a second embodiment of the expansion device of the invention, in the condition in which it is extracted from the cervical canal ;
- Fig. 7 the expansion device of the invention, with metal point elements whose ends define a cylinder of greater diameter than that of the expansion devices of Figs. 1 to 6.
- the expansion device 1 comprises a tubular element 2 with a knurled surface in order to facilitate the grasp, and with three slits 3a, 3b, 3c.
- the slits 3a, 3b, 3c having a rectangular shape, terminate at the end 4 of the tubular element 2 and respectively at three intermediate points 5 arranged at the same level along the tubular element 2.
- Said three slots 3a, 3b, 3c are arranged at an angular distance of 120° from each other.
- an ensemble of components 6 which includes a rod 7 integral with conical parts 8a, 8b, and three metal point elements 9a, 9b, 9c which are inserted in three seats which are defined by the above mentioned slits 3a, 3b, 3c.
- the metal point elements 9a, 9b, 9c are therefore also located in said slits 3a, 3b, 3c, so as to define three sectors of 120°, as clearly shown in Figs, lb and 2b.
- the ensemble of components 6, which is inserted in the direction of the arrow A (or B) in the tubular element 2, comprises also a conical element 10 having a first axial bore 11, through which passes the rod 7, the latter having a conical point 12.
- the conical element 10 is fixed by means of screws (not shown) to the upper end 4 of the tubular element 2.
- the end of the rod 7 opposite to the conical point 12 is slidingly inserted into a hollow cylindrical portion 13 integral with a cylindrical knob 14, which is knurled on its outer periphery.
- the cylindrical knob 14 is screwed on the lower end of the tubular element 2, on the outer thread 15 of the latter.
- the screw 16, which is inserted in an appropriate seat on the bottom of the cylindrical knob 14, is screwed from the outside in a second axial bore 17 obtained at the lower end of the rod 7.
- the metal point elements 9a, 9b, 9c are pushed radially out of the tubular element 2 when the cylindrical knob 14 is completely screwed, whereas, when the latter is screwed out until it has reached the position of Fig. la, the metal point elements 9a, 9b, 9c are pulled inwardly, inside the tubular element 2.
- the metal point elements 9a, 9b, 9c define a cylinder with a rounded point, at the upper end of the expansion device 1, when the latter is in the condition shown in Fig. la, but they also have planar (i .e.
- the conical part 8a has three guide slots 20b each corresponding to a respective metal point el ement .
- the stop 23 prevents the knob 14 from being completely screwed out if the screw 16 is not previously screwed out .
- a washer 40 screwed on the rod 2, at the position shown in the drawings, allows after it has been screwed out, to replace each metal point element 9a, 9b, 9c, by taking it out of the respective guide slot 20a or 20b.
- the operation of the expansion device is the following: once the upper cylindrical end 31 of the expansion device has been introduced inside the cervical canal , the knob 14 is screwed, so that the conical parts 8a, 8b and the conical point 12 will spread the metal point elements 9a, 9b, 9c.
- a micrometric readout scale 30 will allow to evaluate the dilation obtained during every step of the di 1 ati on . Since only a single device is used, instead of several instruments as in the case of the Hegar instruments, it is obvious that several advantages will arise, both as regards sterilization, and the successive rearrangement on the operating-table.
- metal point elements can be mounted, whose ends 31 introduced in the cervical canal will define cylinders of a greater diameter with respect to those of Figs. 1-6.
- the expansion device can be adapted to the following practical situations:
- Figs. 5 and 6 show an expansion device which differs from the expansion device of Figs. 1-4, by the fact that the conical parts 8a, 8b do not have guide slots, and the metal point elements are provided with radial projections 32, 33 which cooperate with the conical parts 8a, 8b in order to push the metal point elements out of thei r seats .
- steel return springs 34, 35 are employed, which cause the metal point elements to return in the position of Fig. 5.
- the way in which the advancement of the rod 7 is performed/adjusted may be of any kind.
- the rod 7 may be actuated by an hydraulic device, a pneumatic device or the like, the adjustment being obtained by adjusting the pressure of the actuation fluid in every single step of the dilation of the cervical canal .
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Gynecology & Obstetrics (AREA)
- Pregnancy & Childbirth (AREA)
- Reproductive Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Hematology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
Expansion device for the dilation of the cervical canal, comprising an element (2) and an actuation rod (7) which is connected to a cylindrical knob (14) screwed on a thread (15). The rod (7) comprises conical parts (8a, 8b) which are integral with it, and which push metal point elements (9a, 9b, 9c) outside the hollow body, in a radial direction, through slits (3a, 3b, 3c), cooperating with a conical element (10) which acts like a stop. The front ends (31) of the metal point elements (9a, 9b, 9c) which are introduced into the cervical canal, will move away from each other in a radial direction, thus causing a dilatation of the canal, starting from an initial diameter (D1) up to a final diameter (D2).
Description
Descri pt i on Non-traumatic expansion device of the cervical canal
Technical Field
The present invention relates to an expansion device of the cervical canal , which is introduced in said canal for example for diagnostic purposes, in the interruption of pregnancy, in all surgical operations which need the execution of the dilation of the cervical canal , etc. , and more particularly the invention relates to a non- traumatic expansion device, which after having been introduced in the cervical canal , allows to enlarge the latter progressively by exerting only radial pressures, and which therefore does not need to be extracted and inserted in the period of time within the single steps of the dilation operation.
Background Art
In gynaecology, nowadays, use is made of Hegar expanders, These instruments are made of steel which can be sterilized in an autoclave, for example, or they are made of plastics and can be disposed of after use. They form a set of cylindrical instruments with a rounded point and a smooth surface, each one having an increased diameter with respect to a foregoing of the set.
For example, in order to dilate the cervical canal to a size of 8mm, it will be necessary to introduce
successively 9 Hegars (from 4 to 8 mm in diameter, with an increase in diameter equal to 0,5 mm) . Each Hegar is left inside the cervical canal about 30". In order to allow the introduction of each Hegar, the cervix uteri is subjected to a countertracti on , by means of a pair of Brown-Pozzi-Schroeder-Museux pliers. The disadvantages of the Hegar instruments are the fol 1 owi ng :
- possible tearing of the front lip of the cervix uteri due to the traction of the pliers;
- injury caused to the superficial epithelium of the side walls of the cervix uteri , due to a perforation, as a consequence of a sudden introduction of the Hegar j - injuries due to a sudden and excessive dilation.
Disclosure of Invention
The object of the present invention is to eliminate the foregoing disadvantages, providing an expansion device whose introduction in the cervical canal requires only a moderate force, so that only one Museux pliers is requi red .
Another object of the present invention is to provide an expansion device which exerts only radial pressures, so that it will be introduced only once into the cervical canal , and this will involve several advantages as regards a non-traumatic execution of the dilation operati on .
Brief Description of Drawings
Further advantages of the present invention will result from the detailed description thereof, with reference to two particular embodiments, which are exemplificative and non-limitative and which are illustrated in the drawings, the latter showing indi idually:
Fig. la, a longitudinal sectional view of the expansion device in the condition in which it is introduced in the cervi cal canal ;
Fig. lb, a front view of the expansion device shown in Fig. la, in the direction of the arrow A;
Fig. 2a, a longitudinal sectional view of the expansion device, in the condition in which it is extracted from the cervical canal after the dilation operation;
Fig. 2b, a front view of the expansion device shown in Fig. 2a, in the direction of the arrow B;
Fig. 3, a perspective view of the expansion device in the condition in which it is introduced into the cervi cal canal ;
Fig. 4, a perspective view of only the front part of the expansion device, in the condition in which it is extracted from the cervical canal ;
Fig. 5, a longitudinal sectional view of a second embodiment of the expansion device according to the invention, in the condition in which the expansion device is introduced into the cervical canal ;
Fig. 6, a longitudinal sectional view of a second embodiment of the expansion device of the invention, in the condition in which it is extracted from the cervical canal ;
Fig. 7, the expansion device of the invention, with metal point elements whose ends define a cylinder of greater diameter than that of the expansion devices of Figs. 1 to 6.
Best Mode of Carrying out the Invention
In the Figs, the same reference numerals indicate the same or similar parts of the expansion device.
The expansion device 1 comprises a tubular element 2 with a knurled surface in order to facilitate the grasp, and with three slits 3a, 3b, 3c.
The slits 3a, 3b, 3c, having a rectangular shape, terminate at the end 4 of the tubular element 2 and respectively at three intermediate points 5 arranged at the same level along the tubular element 2.
Said three slots 3a, 3b, 3c are arranged at an angular distance of 120° from each other. With reference to the first embodiment, inside the tubular element 2 there is
an ensemble of components 6 which includes a rod 7 integral with conical parts 8a, 8b, and three metal point elements 9a, 9b, 9c which are inserted in three seats which are defined by the above mentioned slits 3a, 3b, 3c.
The metal point elements 9a, 9b, 9c are therefore also located in said slits 3a, 3b, 3c, so as to define three sectors of 120°, as clearly shown in Figs, lb and 2b. The ensemble of components 6, which is inserted in the direction of the arrow A (or B) in the tubular element 2, comprises also a conical element 10 having a first axial bore 11, through which passes the rod 7, the latter having a conical point 12. The conical element 10 is fixed by means of screws (not shown) to the upper end 4 of the tubular element 2.
The end of the rod 7 opposite to the conical point 12 is slidingly inserted into a hollow cylindrical portion 13 integral with a cylindrical knob 14, which is knurled on its outer periphery. The cylindrical knob 14 is screwed on the lower end of the tubular element 2, on the outer thread 15 of the latter. The screw 16, which is inserted in an appropriate seat on the bottom of the cylindrical knob 14, is screwed from the outside in a second axial bore 17 obtained at the lower end of the rod 7.
As can be seen in Figs, la and 2a, the metal point elements 9a, 9b, 9c are pushed radially out of the tubular element 2 when the cylindrical knob 14 is
completely screwed, whereas, when the latter is screwed out until it has reached the position of Fig. la, the metal point elements 9a, 9b, 9c are pulled inwardly, inside the tubular element 2. In order to understand this way of operation, it must be noticed that the metal point elements 9a, 9b, 9c define a cylinder with a rounded point, at the upper end of the expansion device 1, when the latter is in the condition shown in Fig. la, but they also have planar (i .e. flat) parts which are inserted in guide slots 20a, 20b provided on conical parts 8a, 8b, being prevented from disengagement relatively to said slots, in a radial direction. In this manner, when the cylindrical knob 14 is screwed out until it reaches the position shown in Fig. la, the metal point elements are automatically pulled inwardly, since they are prevented from disengagement from the guide slots 20a, 20b.
Even if in the figures only one guide slot 20a is shown on the conical part 8a, it is obvious that the total number of such guide slots 20a is equal to three, and they are disposed at an angle of 120° relative to each other, each of them being associated to a metal point el ement . Analogously, the conical part 8b has three guide slots 20b each corresponding to a respective metal point el ement .
In Figs, la and lb it can be noticed that the planar portion 21 of each metal point element is pulled
inwardly inside a respective cavity of the conical element 10.
There is a total number of three such cavities which are arranged at an angle of 120° one with respect to the other.
The stop 23 prevents the knob 14 from being completely screwed out if the screw 16 is not previously screwed out . In order to disassemble the expansion device 1 it will be sufficient to screw out first the screw 16, then the knob 14, and at last the screws which fix the conical element 10 at the upper extremity of the body 2, whereafter the ensemble of components 6 can be extracted in order to carry out an accurate cleaning and autoclaving of the expansion device.
A washer 40 screwed on the rod 2, at the position shown in the drawings, allows after it has been screwed out, to replace each metal point element 9a, 9b, 9c, by taking it out of the respective guide slot 20a or 20b. The operation of the expansion device is the following: once the upper cylindrical end 31 of the expansion device has been introduced inside the cervical canal , the knob 14 is screwed, so that the conical parts 8a, 8b and the conical point 12 will spread the metal point elements 9a, 9b, 9c.
A micrometric readout scale 30 will allow to evaluate the dilation obtained during every step of the di 1 ati on .
Since only a single device is used, instead of several instruments as in the case of the Hegar instruments, it is obvious that several advantages will arise, both as regards sterilization, and the successive rearrangement on the operating-table.
According to the requirements, as shown in Fig. 7, metal point elements can be mounted, whose ends 31 introduced in the cervical canal will define cylinders of a greater diameter with respect to those of Figs. 1-6. In this way, by replacing only the metal point elements 9a, 9b, 9c, the expansion device can be adapted to the following practical situations:
- dilation from Dl = 5 mm to D2 = 11 mm
- dilation from Dl = 9 mm to D2 = 15 mm - dilation from Dl = 13 mm to D2 = 19 mm
Figs. 5 and 6 show an expansion device which differs from the expansion device of Figs. 1-4, by the fact that the conical parts 8a, 8b do not have guide slots, and the metal point elements are provided with radial projections 32, 33 which cooperate with the conical parts 8a, 8b in order to push the metal point elements out of thei r seats .
Since guide slots are not provided, steel return springs 34, 35 are employed, which cause the metal point elements to return in the position of Fig. 5.
It is obvious to a skilled person that the way in which the advancement of the rod 7 is performed/adjusted may be of any kind.
For example, the rod 7 may be actuated by an hydraulic device, a pneumatic device or the like, the adjustment being obtained by adjusting the pressure of the actuation fluid in every single step of the dilation of the cervical canal .
According to an obvious variant, more than three metal point elements could be provided.
Claims
1. Expansion device for the dilation of the cervical canal , characterized in that it comprises a tubular element (2) at one end of which there is fixed a conical element (10) having a first axial bore (11); a rod (7) arranged in the interior of the tubular element (12) , integral with two conical parts (8a, 8b); metal point elements (9a, 9b, 9c) arranged in rectangular slits (3a, 3b, 3c) obtained on the wall of the tubular element (2) parallely to its longitudinal axis; and actuation means for displacing forwardly said rod (7), so that the conical parts (8a, 8b) will push said metal point elements (9a, 9b, 9c) through the rectangular slits (3a, 3b, 3c) towards the outside of the tubular element (2) and in a radial direction, cooperating with said conical element (10) which acts li e a stop, when the rod (7) is advanced towards said axial bore (11); said expansion device being further characterized in that the slits (3a, 3b, 3c) and the respective metal point elements are preferably arranged at constant angular distances with respect to each other, the front ends (31) of the metal point elements (9a, 9b, 9c) introduced inside the cervical canal forming a cylinder with a rounded head when the rod (7) is moved back to an initial position, and being progressivel spread in a radial direction when the rod (7) is advanced towards its final advanced position, in which the conical point (12) passing through the axial bore (11) will be arranged between the ends (31) of the metal point elements (9a, 9b, 9c) , thereby acting as a counterpressure means so as to preserve the position of the metal point elements which determines the desired final dilation of the cervical canal ; the conical element (10) being provided with cavities in which intermediate planar parts (21) of the metal point elements (9a, 9b, 9c) are introduced, in said initial position of the rod (7).
2. Expansion device according to claim 1, characterized in that there are provided return means (20a, 20b, ; 34, 35) which force the metal point elements (9a, 9b, 9c) to move back inside the respective slits (3a, 3b, 3c) when the rod (7) is moved back to its initial position.
3. Expansion device according to claim 2, characterized in that said return means are guide slots (20a, 20b) in which the metal point elements are engaged so as to be able to slide along them and so as to be prevented from being extracted from them in a radial direction.
4. Expansion device according to claim 2, characterized in that said return means consist of steel made return spri ngs ( 34 , 35 ) .
5. Expansion device according to claim 1, characterized in that said actuation means of the rod (7) consist of a cylindrical knob (14) which is screwed on the tubular element (2) , the latter being provided with a micrometric scale (30) at its opposite end with respect to said conical element (10) .
6. Expansion device according to claim 1, characterized in that said actuation means of the rod (7) consist of hydraulic or pneumatic devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU68068/94A AU6806894A (en) | 1993-05-10 | 1994-05-02 | Non-traumatic expansion device of the cervical canal |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITRM93A000299 | 1993-05-10 | ||
| IT93RM000299A ITRM930299A1 (en) | 1993-05-10 | 1993-05-10 | DEVICE FOR THE EXPANSION OF THE CERVICAL CHANNEL IN PROGRESS |
| ITRM93A000637 | 1993-09-22 | ||
| ITRM930637A IT1261934B (en) | 1993-09-22 | 1993-09-22 | Atraumatic dilator of the uterine cervical canal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1994026344A1 true WO1994026344A1 (en) | 1994-11-24 |
Family
ID=26332039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT1994/000053 Ceased WO1994026344A1 (en) | 1993-05-10 | 1994-05-02 | Non-traumatic expansion device of the cervical canal |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU6806894A (en) |
| WO (1) | WO1994026344A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996027323A1 (en) * | 1995-03-07 | 1996-09-12 | John Dumergue Charters | Apparatus for dilating a body cavity |
| WO1996028083A1 (en) * | 1995-03-09 | 1996-09-19 | Mca Medical Products Pty. Ltd. | A speculum |
| DE102004012109B3 (en) * | 2004-03-12 | 2005-12-22 | Fehling Ag | Analspreizer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE151306C (en) * | ||||
| DE168467C (en) * | 1900-01-01 | |||
| US1661563A (en) * | 1926-03-01 | 1928-03-06 | Drosselmeyer Frank | Douche and syringe |
| US1737488A (en) * | 1928-12-06 | 1929-11-26 | John P Zohlen | Dilator |
| DE2656752A1 (en) * | 1976-12-15 | 1978-06-22 | Juergen Dr Med Kynast | Cervical passage expanding instrument - comprises tapered bar screwing into spring steel tube with tapering tongues |
| US4572186A (en) * | 1983-12-07 | 1986-02-25 | Cordis Corporation | Vessel dilation |
-
1994
- 1994-05-02 WO PCT/IT1994/000053 patent/WO1994026344A1/en not_active Ceased
- 1994-05-02 AU AU68068/94A patent/AU6806894A/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE151306C (en) * | ||||
| DE168467C (en) * | 1900-01-01 | |||
| US1661563A (en) * | 1926-03-01 | 1928-03-06 | Drosselmeyer Frank | Douche and syringe |
| US1737488A (en) * | 1928-12-06 | 1929-11-26 | John P Zohlen | Dilator |
| DE2656752A1 (en) * | 1976-12-15 | 1978-06-22 | Juergen Dr Med Kynast | Cervical passage expanding instrument - comprises tapered bar screwing into spring steel tube with tapering tongues |
| US4572186A (en) * | 1983-12-07 | 1986-02-25 | Cordis Corporation | Vessel dilation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996027323A1 (en) * | 1995-03-07 | 1996-09-12 | John Dumergue Charters | Apparatus for dilating a body cavity |
| US5916151A (en) * | 1995-03-07 | 1999-06-29 | Charters; John Dumergue | Apparatus for dilating a body cavity |
| WO1996028083A1 (en) * | 1995-03-09 | 1996-09-19 | Mca Medical Products Pty. Ltd. | A speculum |
| DE102004012109B3 (en) * | 2004-03-12 | 2005-12-22 | Fehling Ag | Analspreizer |
Also Published As
| Publication number | Publication date |
|---|---|
| AU6806894A (en) | 1994-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3794044A (en) | Delivery forceps | |
| US5607446A (en) | Pupil dilator | |
| US4723938A (en) | Single plunger inflation device for angioplasty catheter | |
| US7682370B2 (en) | Surgical tool for use in expanding a cannula | |
| DE2659238C3 (en) | Tubular medical instrument for insertion into a human body cavity, in particular a probe, catheter, endoscope or the like | |
| US5562680A (en) | Apparatus for assisting the performance of pelvic endoscopic procedures | |
| US6190312B1 (en) | Variable geometry retractor and disposable retractor stay clips and method of use | |
| US3522803A (en) | Inserter for intra-uterine device | |
| US3557794A (en) | Arterial dilation device | |
| US20090326581A1 (en) | Expandable spacing means for insertion between spinous processes of adjacent vertebrae | |
| US20080039865A1 (en) | Maasal cervical dilator | |
| AU533136B2 (en) | Dispensing instrument with balloon member | |
| EP0002060A1 (en) | An instrument for placing material into both canals of the fallopian tubes | |
| US5916151A (en) | Apparatus for dilating a body cavity | |
| EP0671897A1 (en) | Surgical cable tensioner | |
| IL259277B1 (en) | Trocar support | |
| WO1993007800A1 (en) | A speculum | |
| US7549997B2 (en) | Body canal dilation system | |
| GB1584281A (en) | Device for externally exerting a holding action on bone tissue | |
| GB1597124A (en) | Dispensing instruments | |
| WO1994026344A1 (en) | Non-traumatic expansion device of the cervical canal | |
| CN111467008A (en) | Uterine curettage device for obstetrical department | |
| DE69617242T2 (en) | NON-INVASIVE MEDICAL PROBE AND METHOD FOR USE | |
| EP2403414A1 (en) | Pneumatic self retaining surgical retractor system | |
| CN109549693B (en) | A retractable cervical dilator and method of use |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AT AU BB BG BR BY CA CH CN CZ DE DK ES FI GB GE HU JP KG KP KR KZ LK LU LV MD MG MN MW NL NO NZ PL PT RO RU SD SE SI SK TJ TT UA US UZ VN |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| NENP | Non-entry into the national phase |
Ref country code: CA |
|
| 122 | Ep: pct application non-entry in european phase |