CN211749727U

CN211749727U - External fixing device of automatic suction of amniotic fluid puncture needle

Info

Publication number: CN211749727U
Application number: CN201922362048.8U
Authority: CN
Inventors: 佘明聪; 高金松; 孔祥东
Original assignee: First Affiliated Hospital of Zhengzhou University
Current assignee: First Affiliated Hospital of Zhengzhou University
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-27
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses an external fixing device of automatic suction of amniotic fluid pjncture needle, including first telescopic link, the right-hand member of second telescopic link rotates and is connected with a piece, the pjncture needle is installed to the bottom of syringe, the outside of syringe is equipped with absorbs the subassembly. This external fixing device of automatic suction of amniotic fluid pjncture needle, through absorbing the subassembly, a piece, the cooperation of syringe and pjncture needle, make the outer wall and the curved surface contact of syringe, enlarge the grip area, and then make fixed more stable, and quicker for prior art, and then promote the installation rate, through rotating assembly, a piece, the cooperation of syringe and pjncture needle, change the angle of syringe and pjncture needle, be applicable to multiple environment, and then promote practicality and flexibility, through the screens subassembly, the cooperation of second splint and first splint, when making the device fixed with bed board or other objects, it is applicable in different contact surfaces, avoid causing the secondary injury to patient.

Description

External fixing device of automatic suction of amniotic fluid puncture needle

Technical Field

The utility model relates to an external fixing device technical field of automatic suction of amniotic fluid puncture needle specifically is an external fixing device of automatic suction of amniotic fluid puncture needle.

Background

The amniotic fluid puncture examination is a method for prenatal diagnosis, generally suitable for prenatal diagnosis of mid-term pregnancy, and is characterized by that under the action of B superconducting superconductor a slender needle (i.e. puncture needle) is passed through the belly skin and amniotic cavity wall of pregnant woman and fed into the amniotic cavity to extract some amniotic fluid, and a part of puncture needle used for amniotic fluid puncture is fed into the body of pregnant woman, and a part is positioned outside the body of pregnant woman, and an injector is mounted outside the body of pregnant woman so as to suck the amniotic fluid by means of injector.

The external fixing device of automatic suction of amniotic fluid pjncture needle among the prior art, it is little to syringe clamping area, and then make fixed stable inadequately, and the installation fixed speed is slow, and then reduce the installation rate, the stability of absorption process is relatively poor, can't change the angle of syringe and pjncture needle, make puncturing the absorption in-process, be not suitable for multiple environment, and then reduce practicality and flexibility, the absorption efficiency is low, while fixed with bed board or other objects, can't be applicable to different contact surfaces, and then make the firmness low, can't guarantee the stability of absorption process, cause the secondary injury to patient easily, and then inconvenient people use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an external fixing device of automatic suction of amniotic fluid pjncture needle to the external fixing device who provides the automatic suction of amniotic fluid pjncture needle among the prior art in solving above-mentioned background art, it is little to syringe clamping area, and then make fixed stable inadequately, and the installation fixed speed is slow, and then reduces the installation rate, absorbs the relatively poor problem of stability of process.

In order to achieve the above object, the utility model provides a following technical scheme: an in-vitro fixing device for automatic suction of a amniotic fluid puncture needle comprises a first telescopic rod, wherein the bottom of the first telescopic rod is rotatably connected with a screw rod through a bearing, the bottom of the right end of the first telescopic rod is fixedly connected with a first clamping plate, the outer wall of the screw rod is in threaded connection with a second clamping plate, a second telescopic rod is fixedly connected above the right side of the first telescopic rod, the right end of the second telescopic rod is rotatably connected with a supporting block, the right side of the supporting block is provided with an injector, the bottom of the injector is provided with the puncture needle, and the outer side of the injector is provided with a suction assembly;

the sucking component comprises a square frame, a bolt, a support rod, a bent plate, a first spring, an air cylinder and a clamping plate;

the left end of the inner wall of the square frame is in threaded connection with a bolt, the right end of the bolt is connected with a supporting rod through a bearing in a rotating mode, the right end of the supporting rod is connected with two bent plates in a rotating mode, the inner ends of the bent plates are tightly abutted to the outer wall of the injector, the outer ends of the bent plates are tightly abutted to the right side of the inner wall of the square frame, the left side of the outer ends of the bent plates is fixedly connected with the inner wall of the square frame through a first spring, an air cylinder is arranged at the top of the square frame, the bottom of the air cylinder is fixedly connected with the top of a supporting block, a clamping plate is fixedly connected to the.

Preferably, the curved plates are symmetrically distributed about the strut axis.

Preferably, the left side of the supporting block is provided with an adjusting component;

the adjusting component comprises a nut, a lantern ring and a pull rod;

the inner wall of the nut is in threaded connection with a thread section preset on the outer wall of the telescopic end of the second telescopic rod, a lantern ring is arranged on the inner side of the nut, the inner wall of the lantern ring is in clearance fit with the thread section preset on the outer wall of the telescopic end of the second telescopic rod, and the bottom of the lantern ring is movably connected with the lower portion of the left end of the support block through a pull rod.

Preferably, the inner ends of the first clamping plate and the second clamping plate are respectively provided with a clamping component;

the clamping assembly comprises a groove, a bracket, a transverse plate, a rubber pad and a second spring;

the recess is processed respectively in the inner of first splint and second splint, the inner wall left and right sides rigid coupling of recess has the support, the inner of support all rotates and is connected with the diaphragm, the equal rigid coupling in inner of diaphragm has the rubber pad, the outer end of diaphragm all is through the inner wall fixed connection of second spring and recess.

Preferably, two grooves are correspondingly arranged.

Preferably, the inner end of the transverse plate is flush with the inner ends of the first clamping plate and the second clamping plate.

Compared with the prior art, the beneficial effects of the utility model are that: this external fixing device of automatic suction of amniotic fluid pjncture needle structure scientific and reasonable, convenience safe in utilization:

through first telescopic link, second telescopic link, the cooperation of absorption subassembly, piece, syringe and pjncture needle for the outer wall and the curved surface contact of syringe enlarge the grip area, and then make fixed more stable, and faster for prior art, and then promote the installation rate, guarantee the stability of absorption process.

Through the cooperation of rotating assembly, a piece, syringe and pjncture needle for the rotating nut changes the lantern ring position and can change a piece turned angle, and then to the angle that changes syringe and pjncture needle, makes and punctures the absorption in-process, is applicable to multiple environment, and then promotes practicality and flexibility, promotes and absorbs efficiency.

Through the cooperation of screens subassembly, second splint and first splint for when the device is fixed with bed board or other objects, applicable in different contact surfaces, and then promote fixed firmness, further guarantee to absorb the stability of process, avoid causing the secondary injury to patient, and then make things convenient for people to use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view showing the connection relationship between the supporting block, the frame and the puncture needle in FIG. 1;

FIG. 3 is a partial bottom cross-sectional connection view of FIG. 2;

fig. 4 is a schematic view showing the connection relationship between the second clamping plate, the groove and the transverse plate in fig. 1.

In the figure: 1. the device comprises a first telescopic rod, 2, a screw rod, 3, a first clamping plate, 4, a second clamping plate, 5, a second telescopic rod, 6, a support block, 7, a suction assembly, 701, a square frame, 702, a bolt, 703, a support rod, 704, a curved plate, 705, a first spring, 706, a cylinder, 707, a clamping plate, 8, a rotating assembly, 801, a nut, 802, a lantern ring, 803, a pull rod, 9, a clamping assembly, 901, a groove, 902, a support, 903, a transverse plate, 904, a rubber pad, 905, a second spring, 10, an injector, 11 and a puncture needle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an external fixing device for automatically sucking a amniotic fluid puncture needle comprises a first telescopic rod 1, wherein the first telescopic rod 1 and a second telescopic rod 2 are telescopic hollow cylindrical rods formed by rolling metal strips or plastic sheets, and the external fixing device is characterized in that the metal strips or the plastic sheets are pre-shaped into elastic curling layers with memory function and smaller than the outer diameter of a rod body, so that the elastic curling layers have self-tightening function, the curling layers have elastic potential energy for applying pressure to the telescopic rods all the time, the bottom of the first telescopic rod 1 is rotatably connected with a screw rod 2 through a bearing, the screw rod 2 can rotate when being stressed by the first telescopic rod 1, a handle is fixedly connected to the bottom of the screw rod 2, a first clamping plate 3 is fixedly connected to the bottom of the right end of the first telescopic rod 1, a second clamping plate 4 is connected to the outer wall of the screw rod 2 through threads, the first clamping plate 3 and the second clamping plate 4 are oppositely arranged, a, the right end of the second telescopic rod 5 is rotatably connected with a support block 6, an injector 10 is arranged on the right side of the support block 6, the injector 10 is used for absorbing amniotic fluid, a puncture needle 11 is installed at the bottom of the injector 10, the puncture needle 11 is communicated with the injector 10, and an absorption assembly 7 is arranged on the outer side of the injector 10.

The sucking component 7 comprises a frame 701, a bolt 702, a support rod 703, a curved plate 704, a first spring 705, a cylinder 706 and a clamping plate 707, the left end of the inner wall of the frame 701 is in threaded connection with the bolt 702, the right end of the bolt 702 is rotatably connected with the support rod 703 through a bearing, the bolt 702 enables the support rod 703 to rotate when being stressed, the right end of the support rod 703 is rotatably connected with two curved plates 704, the curved plates 704 are axially and symmetrically distributed around the support rod 703, the inner end of each curved plate 704 is abutted against the outer wall of the injector 10, the curved plates 704 play a role in clamping and fixing the injector 10, the outer end of each curved plate 704 is abutted against the right side of the inner wall of the frame 701, the left side of the outer end of each curved plate 704 is fixedly connected with the inner wall of the frame 701 through the first spring 705, the first spring 705 gives a force for the curved plate 704 to rotate to the left, the top of the frame 701 is provided with the cylinder 706, the cylinder 706, the piston end of the cylinder 706 is fixedly connected with a clamping plate 707, the right side of the clamping plate 707 is clamped with the top of the piston rod of the syringe 10, and the clamping plate 707 can control the piston rod of the syringe 10 to move.

Prop up the left side of piece 6 and be equipped with adjustment assembly 8, adjustment assembly 8 includes nut 801, lantern ring 802 and pull rod 803, the screw thread section threaded connection that the inner wall of two nuts 801 and the flexible end outer wall of second telescopic link 5 predetermine, the screw thread section of second telescopic link 5 makes nut 80 rotary motion, nut 801's inboard is equipped with lantern ring 802, the screw thread section clearance fit that the inner wall of lantern ring 802 and the flexible end outer wall of second telescopic link 5 predetermine, nut 801 plays limiting displacement to lantern ring 802, the bottom of lantern ring 802 and the left end below of propping up piece 6 are through pull rod 803 swing joint, the steerable turned angle who props up piece 6 of pull rod 803.

The inner ends of the first clamping plate 3 and the second clamping plate 4 are respectively provided with a clamping assembly 9, each clamping assembly 9 comprises a groove 901, a support 902, a transverse plate 903, a rubber pad 904 and a second spring 905, the grooves 901 are respectively processed at the inner ends of the first clamping plate 3 and the second clamping plate 4, the two grooves 901 are correspondingly arranged, so that a bed board can be sunk into the grooves 901 when the position to be fixed of the bed board is an arc surface, the left side and the right side of the inner wall of each groove 901 are fixedly connected with the supports 902, the inner ends of the supports 902 are respectively and rotatably connected with the transverse plate 903, the transverse plate 903 is rotatably stressed by the supports 902, the inner ends of the transverse plate 903 are flush with the inner ends of the first clamping plate 3 and the second clamping plate 4, so that the first clamping plate 3 and the second clamping plate 4 can be more conveniently inserted when the first clamping plate 3 and the second clamping plate 4 are fixed, the inner ends of the transverse plates 903 are respectively and, the second spring 905 gives a force to the cross plate 903 to support.

In this embodiment, when using the extracorporeal fixing device for automatic suction of amniotic fluid puncture needle, firstly, the injector 10 is placed inside the two curved plates 704, and is connected with the screw of the frame 701 through the bolt 702, and the support rod 703 is connected with the rotation of the curved plate 704, so that the support rod 703 drives the curved plate 704 to move leftward, when the curved plate 704 contacts with the frame 701, the curved plate 704 tightly supports and fixes the injector 10, the device is fixed with the bed plate, the first clamping plate 3 and the second clamping plate 4 can clamp the bed plate tightly through the screw connection of the screw rod 2 and the second clamping plate 4, and then the device is fixed, when the clamping position of the bed plate is an arc surface, the arc surface is moved to the position of the groove 901, the device can be fixed by using different contact surfaces through the rotation connection of the transverse plate 903 and the bracket 902, and the action of the rubber pad 904, so that the fixation is more stable, and through the adjusting function of the first telescopic rod 1 and the second telescopic rod 5, make pjncture needle 11 can with treat that to pierce through the position alignment puncture, control cylinder 706 flexible through external control module for cardboard 707 drives the piston rod motion of syringe 10, and then realizes absorbing the amniotic fluid, is connected through the nut of nut 801 with second telescopic link 5 screw thread section, and the clearance fit of the lantern ring 802 and second telescopic link 5, make and remove lantern ring 802 position and can change a 6 angles, and then change and pierce and absorb the angle, promote the practicality.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an external fixing device of automatic suction of amniotic fluid pjncture needle, includes first telescopic link (1), its characterized in that: the bottom of the first telescopic rod (1) is rotatably connected with a screw rod (2) through a bearing, the bottom of the right end of the first telescopic rod (1) is fixedly connected with a first clamping plate (3), the outer wall of the screw rod (2) is in threaded connection with a second clamping plate (4), a second telescopic rod (5) is fixedly connected above the right side of the first telescopic rod (1), the right end of the second telescopic rod (5) is rotatably connected with a supporting block (6), an injector (10) is arranged on the right side of the supporting block (6), a puncture needle (11) is installed at the bottom of the injector (10), and an absorption assembly (7) is arranged outside the injector (10);

the suction assembly (7) comprises a square frame (701), a bolt (702), a support rod (703), a curved plate (704), a first spring (705), a cylinder (706) and a clamping plate (707);

the left end of the inner wall of the square frame (701) is in threaded connection with a bolt (702), the right end of the bolt (702) is rotatably connected with a support rod (703) through a bearing, the right end of the support rod (703) is rotatably connected with two bent plates (704), the inner ends of the bent plates (704) are abutted against the outer wall of the injector (10), the outer ends of the bent plates (704) are abutted against the right side of the inner wall of the square frame (701), the left side of the outer end of the bent plate (704) is fixedly connected with the inner wall of the square frame (701) through a first spring (705), an air cylinder (706) is arranged at the top of the square frame (701), the bottom of the air cylinder (706) is fixedly connected with the top of the support block (6), a clamping plate (707) is fixedly connected with the piston end of the air cylinder (706), and the right side of the clamping plate (707.

2. The extracorporeal fixing device for the automatic suction of the amniotic fluid puncture needle according to claim 1, wherein: the bent plates (704) are axially symmetrically distributed around the support rod (703).

3. The extracorporeal fixing device for the automatic suction of the amniotic fluid puncture needle according to claim 1, wherein: an adjusting component (8) is arranged on the left side of the supporting block (6);

the adjustment assembly (8) comprises a nut (801), a collar (802) and a pull rod (803);

two the screw thread section threaded connection that the inner wall of nut (801) and the flexible end outer wall of second telescopic link (5) predetermine, the inboard of nut (801) is equipped with lantern ring (802), the screw thread section clearance fit that the inner wall of lantern ring (802) and the flexible end outer wall of second telescopic link (5) predetermine, the bottom of the lantern ring (802) and the left end below of a piece (6) are through pull rod (803) swing joint.

4. The extracorporeal fixing device for the automatic suction of the amniotic fluid puncture needle according to claim 1, wherein: the inner ends of the first clamping plate (3) and the second clamping plate (4) are respectively provided with a clamping component (9);

the clamping assembly (9) comprises a groove (901), a bracket (902), a transverse plate (903), a rubber pad (904) and a second spring (905);

the novel clamping device is characterized in that the grooves (901) are respectively machined at the inner ends of the first clamping plate (3) and the second clamping plate (4), supports (902) are fixedly connected to the left side and the right side of the inner wall of the grooves (901), transverse plates (903) are rotatably connected to the inner ends of the supports (902), rubber pads (904) are fixedly connected to the inner ends of the transverse plates (903), and the outer ends of the transverse plates (903) are fixedly connected with the inner wall of the grooves (901) through second springs (905).

5. The extracorporeal fixing device for the automatic suction of the amniotic fluid puncture needle according to claim 4, wherein: the two grooves (901) are correspondingly arranged.

6. The extracorporeal fixing device for the automatic suction of the amniotic fluid puncture needle according to claim 4, wherein: the inner end of the transverse plate (903) is flush with the inner ends of the first clamping plate (3) and the second clamping plate (4).