CN107184256B - Obstetrical membrane rupture device - Google Patents
Obstetrical membrane rupture device Download PDFInfo
- Publication number
- CN107184256B CN107184256B CN201710447715.5A CN201710447715A CN107184256B CN 107184256 B CN107184256 B CN 107184256B CN 201710447715 A CN201710447715 A CN 201710447715A CN 107184256 B CN107184256 B CN 107184256B
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- sleeve
- arc
- shaped strips
- nut
- rotating rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/42—Gynaecological or obstetrical instruments or methods
- A61B17/4208—Instruments for rupturing the amniotic membrane
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Reproductive Health (AREA)
- Pregnancy & Childbirth (AREA)
- Engineering & Computer Science (AREA)
- Gynecology & Obstetrics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The obstetric membrane rupture device comprises a sleeve, wherein the front end of the sleeve is provided with two arc-shaped strips, one ends of the arc-shaped strips are hinged with the sleeve, the hinged shafts of the arc-shaped strips and the sleeve are provided with torsion springs, the two ends of each torsion spring are respectively connected with the arc-shaped strips and the sleeve, and the torsion springs always apply outward opening force to the arc-shaped strips; the other end of the arc-shaped head is connected with one end of a pull wire, the other end of the pull wire is positioned at the rear end of the sleeve, an end cover is arranged at the rear end of the sleeve, a through hole is formed in the end cover, a screw rod penetrates through the through hole, a nut is arranged on the screw rod in a matched mode, the other end of the pull wire is connected with the nut, and the nut is positioned on the outer side of the end; a plurality of bearing fixing seats are arranged in the sleeve, a rotating rod is arranged in the sleeve, and the rotating rod is connected with the bearing fixing seats in a matching way through bearings; a cutter head is arranged at the front end of the rotating rod and is positioned at the front end of the sleeve; the periphery of the rear part of the rotating rod is provided with an external thread, and the external thread of the rotating rod is matched with a threaded sleeve. The invention can prevent the fetus from being scratched in the process of membrane rupture and is convenient for the parturient to pass in and out in the birth canal.
Description
Technical Field
The invention belongs to the field of obstetrical equipment, and particularly relates to an obstetrical membrane rupture device.
Background
At present, in a membrane rupturing device for obstetrical department, a cover body is arranged at the end part of the membrane rupturing device so as to prevent a cutter head from being inserted too deeply to scratch a fetus in the membrane rupturing process. However, the end cover has a large diameter, so that the end cover has a large resistance when inserted into the birth canal of a parturient, and is inconvenient to use.
Disclosure of Invention
The invention provides an obstetric membrane rupture device, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
the obstetric membrane rupture device comprises a sleeve, wherein the front end of the sleeve is provided with two arc-shaped strips, one ends of the arc-shaped strips are hinged with the sleeve, the hinged shafts of the arc-shaped strips and the sleeve are provided with torsion springs, the two ends of each torsion spring are respectively connected with the arc-shaped strips and the sleeve, and the torsion springs always apply outward opening force to the arc-shaped strips; the other end of the arc-shaped strip is connected with one end of a pull wire, the other end of the pull wire is positioned at the rear end of the sleeve, an end cover is arranged at the rear end of the sleeve, a through hole is formed in the end cover, a screw rod penetrates through the through hole, a nut is arranged on the screw rod in a matched mode, the other end of the pull wire is connected with the nut, and the nut is positioned on the outer side of the end; a plurality of bearing fixing seats are arranged in the sleeve, a rotating rod is arranged in the sleeve, and the rotating rod is connected with the bearing fixing seats in a matching way through bearings; a cutter head is arranged at the front end of the rotating rod and is positioned at the front end of the sleeve; the rear portion periphery of dwang is equipped with the external screw thread, and the external screw thread of dwang is gone up the cooperation and is equipped with the swivel nut, and the poking rod is installed in the outside of swivel nut, and the groove is passed through to telescopic lateral wall, and the poking rod passes through the groove.
According to the obstetric membrane rupture device, the guide wheel is arranged on the inner side of the front end of the sleeve, the pull wire is matched with the guide wheel, the plurality of guide sleeves are arranged in the sleeve, and the pull wire penetrates through the guide sleeves.
The invention has the advantages that: according to the invention, the two arc-shaped strips are closed by adjusting the nut, the diameter of the front end of the device is smaller, the device can be conveniently inserted into the birth canal of a puerpera, after the device reaches the position, the screw rod extends inwards by adjusting the nut, and the arc-shaped strips are opened and attached to the amniotic membrane under the action of the torsion spring. At the moment, the poke rod is poked to move along the through groove, the threaded sleeve moves together, and the rotating rod rotates under the action of the threads, so that the amniotic membrane can be scratched by the tool bit at the end part, and the membrane breaking is completed. The invention can prevent the fetus from being scratched in the process of membrane rupture and is convenient for the parturient to pass in and out in the birth canal.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; fig. 2 is a view in the direction a of fig. 1.
Reference numerals: 1 sleeve 2 3 arc strip 3 torsional spring 4 5 end cover 6 through-hole 7 screw rod 8 nut 9 bearing fixing base 10 dwang 11 bearing 12 tool bit 13 swivel nut 14 poker rod 15 penetrating groove 16 leading wheel 17 uide bushing.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An obstetrical membrane rupture device comprises a sleeve 1, wherein two arc-shaped strips 2 are arranged at the front end of the sleeve 1, one ends of the arc-shaped strips 2 are hinged with the sleeve 1, torsion springs 3 are arranged at the hinged shafts of the arc-shaped strips 2 and the sleeve 1, two ends of each torsion spring 3 are respectively connected with the arc-shaped strips 2 and the sleeve 1, and the torsion springs 3 always give outward opening force to the arc-shaped strips 2; the other end of the arc-shaped strip 2 is connected with one end of a stay wire 4, the other end of the stay wire 4 is positioned at the rear end of the sleeve 1, an end cover 5 is arranged at the rear end of the sleeve 1, a through hole 6 is formed in the end cover 5, a screw rod 7 penetrates through the through hole 6, a nut 8 is arranged on the screw rod 7 in a matched mode, the other end of the stay wire 4 is connected with the nut 8, and the nut 8 is positioned on the outer side of the end cover 5; a plurality of bearing fixing seats 9 are arranged in the sleeve 1, a rotating rod 10 is arranged in the sleeve 1, and the rotating rod 10 is connected with the bearing fixing seats 9 in a matching manner through bearings 11; a cutter head 12 is arranged at the front end of the rotating rod 10, and the cutter head 12 is positioned at the front end of the sleeve 1; the periphery of the rear portion of the rotating rod 10 is provided with an external thread, the external thread of the rotating rod 10 is provided with a threaded sleeve 13 in a matched mode, a poke rod 14 is installed on the outer side of the threaded sleeve 13, a through groove 15 is formed in the side wall of the sleeve 1, and the poke rod 14 penetrates through the through groove 15. According to the invention, the two arc-shaped strips 2 are closed by adjusting the nut 8, the diameter of the front end of the device is small, the device can be conveniently inserted into the birth canal of a puerpera, after the device reaches the position, the screw 7 extends inwards by adjusting the nut 8, and the arc-shaped strips 2 are opened and attached to a amniotic membrane under the action of the torsion spring 3. At the moment, the poke rod 14 is poked to enable the poke rod 14 to move along the through groove 15, the threaded sleeve 13 moves together, and the rotating rod 10 rotates under the action of the threads, so that amniotic fluid membrane can be scratched through the cutter head 12 at the end part, and membrane breaking is completed. The invention can prevent the fetus from being scratched in the process of membrane rupture and is convenient for the parturient to pass in and out in the birth canal.
Specifically, the inner side of the front end of the sleeve 1 according to this embodiment is provided with a guide wheel 16, the pull wire 4 is matched with the guide wheel 16, the sleeve 1 is provided with a plurality of guide sleeves 17 inside, and the pull wire 4 passes through the guide sleeves 17. The stay wire 4 is not in direct contact with the side wall of the sleeve 1 any more, so that the friction force is reduced, and the service life is prolonged.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (1)
1. Obstetrical membrane rupture device, its characterized in that: the amniotic membrane cutting device comprises a sleeve (1), wherein two arc-shaped strips (2) are arranged at the front end of the sleeve (1), one ends of the arc-shaped strips (2) are hinged to the sleeve (1), torsion springs (3) are arranged at the hinged shafts of the arc-shaped strips (2) and the sleeve (1), two ends of each torsion spring (3) are respectively connected with the arc-shaped strips (2) and the sleeve (1), the torsion springs (3) always give outwards-opening force to the arc-shaped strips (2), and the arc-shaped strips (2) are opened and attached to the amniotic membrane under the action of the torsion springs (3); the other end of the arc-shaped strip (2) is connected with one end of the pull wire (4), the other end of the pull wire (4) is located at the rear end of the sleeve (1), an end cover (5) is arranged at the rear end of the sleeve (1), a through hole (6) is formed in the end cover (5), a screw rod (7) penetrates through the through hole (6), a nut (8) is arranged on the screw rod (7) in a matched mode, the other end of the pull wire (4) is connected with the nut (8), and the nut (8) is located on the outer side of the end cover (5); a plurality of bearing fixing seats (9) are arranged in the sleeve (1), a rotating rod (10) is arranged in the sleeve (1), and the rotating rod (10) is connected with the bearing fixing seats (9) in a matching way through bearings (11); a cutter head (12) is arranged at the front end of the rotating rod (10), and the cutter head (12) is positioned at the front end of the sleeve (1); the rear portion periphery of dwang (10) is equipped with the external screw thread, the cooperation is equipped with swivel nut (13) on the external screw thread of dwang (10), poking rod (14) are installed to the outside of swivel nut (13), open groove (15) are seted up to the lateral wall of sleeve (1), poking rod (14) pass through groove (15), the front end inboard of sleeve (1) is equipped with leading wheel (16), act as go-between (4) and leading wheel (16) cooperation, the inside of sleeve (1) is equipped with several uide bushing (17), act as go-between (4) pass uide bushing (17).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620922638 | 2016-08-23 | ||
| CN2016209226385 | 2016-08-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107184256A CN107184256A (en) | 2017-09-22 |
| CN107184256B true CN107184256B (en) | 2020-04-21 |
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ID=59879760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710447715.5A Active CN107184256B (en) | 2016-08-23 | 2017-06-14 | Obstetrical membrane rupture device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107184256B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108888321B (en) * | 2018-05-22 | 2020-09-11 | 安徽工程大学 | Outward flow type membrane rupture device is prevented to gynaecology and obstetrics |
| CN109009363A (en) * | 2018-09-11 | 2018-12-18 | 常州市第二人民医院 | A kind of safe rupture of membranes syringe |
| CN111616780B (en) * | 2020-06-18 | 2021-03-23 | 贾红艳 | Adjustable safe rupture of membranes device that gynaecology and obstetrics used |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201052170Y (en) * | 2007-06-28 | 2008-04-30 | 李雁 | Membrane breaking device |
| CN202288423U (en) * | 2011-11-01 | 2012-07-04 | 于振英 | Membrane rupturing knife in gynaecology and obstetrics |
| CN203042399U (en) * | 2013-01-21 | 2013-07-10 | 袁晓飞 | Artificial membrane rupture device for gynecology and obstetrics department |
| CN203647443U (en) * | 2013-12-26 | 2014-06-18 | 刘艳 | Device for preventing adhesion of uterine cavity mucosa |
| WO2015119656A1 (en) * | 2014-02-10 | 2015-08-13 | Prendergast Kate Anne | Amniotic membrane perforator with integrated safety case |
| CN105055000B (en) * | 2015-09-11 | 2017-09-29 | 温州医科大学附属第二医院 | A kind of membrane rupturing device used in obstetrics |
| CN205107844U (en) * | 2015-11-26 | 2016-03-30 | 马朝琼 | Obstetrics membrane rupturing device |
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2017
- 2017-06-14 CN CN201710447715.5A patent/CN107184256B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107184256A (en) | 2017-09-22 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Lijuan Inventor after: Zhang Shanshan Inventor after: Pang Jiqiao Inventor after: Li Jiaoxiang Inventor after: Zhang Chen Inventor before: Pang Jiqiao Inventor before: Li Jiaoxiang Inventor before: Zhang Chen |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200325 Address after: 277600 No. 10 Weishan County People's Hospital, Weishan, Jining, Shandong Province Applicant after: Wang Lijuan Address before: 250013 No. 25 East Lake Road, Lixia District, Shandong, Ji'nan Applicant before: Pang Jiqiao |
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