CN209932682U - Umbrella rib type push-press fetal membrane fetal scope sheath - Google Patents

Abstract

The utility model discloses a rib formula bulldozes fetal membrane fetal mirror sheath, including the fetal mirror sheath body that can put into camera, laser seal wire the outside sheath wall of fetal mirror sheath body on be provided with and bulldoze interval fetal membrane rib formula structure subassembly the outside sheath wall of fetal mirror sheath body on still be provided with bulldoze interval fetal membrane rib formula structure subassembly cooperation relative sliding connection's first bulldoze rib subassembly stop collar, second and bulldoze rib subassembly stop collar, be provided with the third in the camera of fetal mirror sheath body bottom, laser seal wire exit and bulldoze rib subassembly stop collar, the bottom fixed connection who bulldozes interval fetal membrane rib formula structure subassembly bulldoze on the rib subassembly stop collar in the third. The utility model discloses can bulldoze the interval fetal membrane by a large scale when necessary, make the fetal mirror can be more furthest near observing the offside condition.

Description

An umbrella-bone type pushing fetal membrane fetoscope sheath

technical field

The utility model belongs to the technical field of medical devices, in particular to an umbrella-bone-type fetoscope sheath for pushing fetal membranes.

Background technique

Fetaloscopy is an important means of treating intrauterine diseases of twin fetuses, such as twin-twin transfusion syndrome, selective growth restriction, and twin-twin anemia polycythemia sequence. Among them, the fetoscope sheath is a necessary instrument in the operation. The operator can perform a series of observation and surgical operations through devices such as cameras and laser wires that can be placed in the fetoscope sheath.

The traditional fetoscope sheath has a single function and only has the function of accommodating the camera and laser wire in the inner diameter. Although it can meet most surgical and treatment requirements, it is used in the treatment of certain twin diseases (eg twin anemia polycythemia sequence, twin selective growth restriction, etc.). Since there are two amniotic sacs in twins, there is a septal fetal membrane between the two amniotic sacs. Although the septal fetal membrane is a transparent tissue, due to the existence of amniotic fluid on both sides, after the fetoscope sheath enters one of the amniotic sacs, it cannot be The situation in the other amniotic sac is observed through the interval between the two amniotic sacs and the amniotic fluid (as shown in Figure 6, the traditional fetoscope sheath pushes the fetal membrane, the mark in the figure: 20 is traditional Fetoscopic sheath, 21 is the septal membrane, 22 is the field of view, 23 is the placental blood vessels, and 24 is the placenta). When it is necessary to use the laser to coagulate the blood vessels on the other side of the placenta or to treat other tissues, although the laser can coagulate the blood vessels of the contralateral placenta through the septal membrane and amniotic fluid. But in many cases, due to the presence of fetal membranes and amniotic fluid that separate the two amniotic sacs. Fetaloscopy cannot see the surface of the other side of the placenta. The traditional solution is to use the fetoscope sheath to push the septal membrane as far as possible to the other side of the placenta. However, due to the small diameter of the traditional fetoscope sheath or puncture kit, only a very small field of view can be obtained (as shown in Figure 6, the traditional fetoscope sheath is used to push the fetal membrane, and the Mark 22 is the field of view), and it is very easy to cause rupture of the divided fetal membranes. Therefore, improving a fetoscope sheath that can push the septal membrane in a large area and obtain a sufficient field of view is an ideal method to improve the success rate of surgery and reduce leakage and misoperation.

SUMMARY OF THE INVENTION

The utility model is aimed at the above-mentioned problems and makes up for the deficiencies of the prior art, and provides an umbrella-shaped fetoscope sheath for pushing the fetal membranes; the utility model can push the spaced fetal membranes in a large area when necessary, so that the fetoscope can be more Get as close as possible to observe the situation on the opposite side.

To achieve the above purpose, the present invention adopts the following technical solutions.

The utility model relates to an umbrella-bone-type fetoscope sheath for pushing fetal membranes, which comprises a fetoscope sheath body into which a camera and a laser guide wire can be placed, and is characterized in that: the outer sheath wall of the fetoscope sheath body is There is a push-spaced fetal membrane rib-type structural assembly, and the outer sheath wall of the fetoscope sheath body is also provided with a relatively sliding connection with the push-spaced fetal-membrane rib-type structural assembly. The first push rib assembly limit sleeve, the second push rib assembly limit sleeve, the camera at the bottom of the fetoscope sheath body and the exit of the laser guide wire are provided with a third push rib assembly limit sleeve, The bottom end of the rib structure assembly for pushing and spacing fetal membranes is fixedly connected to the limiting sleeve of the third rib assembly for pushing.

As a preferred solution of the present utility model, the push-and-spaced fetal membrane umbrella rib structure assembly includes an umbrella rib pulling sliding sleeve, a first-section umbrella, which are arranged on the outer sheath wall of the fetoscope sheath body from top to bottom. Bone push-pull rod, second-section umbrella rod push-pull rod, third-section umbrella-rib push-pull rod, umbrella-rib sliding sleeve, first-section umbrella-rib push-pull rod, second-section umbrella-rib push-pull rod, third-section umbrella-rib push-pull rod Connected in sequence, the first section of umbrella rib push-pull rods respectively pass through the first chute provided on the inner side of the limiting sleeve of the first rib assembly, the second chutes provided on the inner side of the limiting sleeve of the second rib assembly, and the third The second section of umbrella rib push-pull rods are connected, and the third section of umbrella rib push-pull rod is fixedly connected to the limit sleeve of the third section of umbrella rib assembly.

As another preferred solution of the present invention, the first section of umbrella rib push-pull rod, the second section of umbrella rib push-pull rod, and the third section of umbrella rib push-pull rod are correspondingly provided with eight rods and are equally spaced on the fetoscope. on the outer sheath wall of the mirror sheath body.

As another preferred solution of the present invention, hinged bushings are provided at the bottom of the first section of the umbrella rib push-pull rod and both ends of the third section of the umbrella rib push-pull rod, and the second section of the umbrella rib push-pull rod is provided with hinged bushings. Both ends of the pull rod are provided with shaft holes respectively hinged with the first section of umbrella rib push-pull rod and the third section of umbrella rib push-pull rod, and the hinged shaft sleeve and the shaft hole are connected by a hinged mandrel.

As another preferred solution of the present utility model, a hinge shaft connection hole seat is fixedly arranged on the limit sleeve of the third push umbrella rib assembly, and the hinge shaft connection hole seat is connected to the third section of the umbrella rib push-pull rod The hinged shaft sleeves are connected by a hinged mandrel.

As another preferred solution of the present invention, an elastic ring fixing hole seat is provided on the outer side of the hinge sleeve of the third section of the umbrella rib push-pull rod connected to one end of the second section of the umbrella rib push-pull rod, and the elastic ring A retractable elastic ring is fixed on the fixing hole seat.

As another preferred solution of the present invention, the retractable elastic ring is made of soft rubber material.

Beneficial effects of the utility model.

1. Obtain a larger area of vision and improve the accuracy of judgment.

Because the structure of the utility model can push a larger area of spaced fetal membrane, the target area exposed at one time is larger, which is convenient for doctors to judge and analyze the position of the disease, and reduces misjudgments and missed judgments.

2, easy to use.

Because the structure of the utility model is simple, no special learning operation is required, and the production efficiency is not affected.

Description of drawings

In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

FIG. 1 is a schematic structural diagram of an umbrella-bone type pushing fetal membrane fetoscope sheath of the present invention.

FIG. 2 is an enlarged structural schematic diagram of the upper half of an umbrella-bone type pushing fetal membrane fetoscope sheath of the present invention.

FIG. 3 is an enlarged structural schematic diagram of the lower half of an umbrella-bone-type fetoscope sheath for pushing fetal membranes according to the present invention.

FIG. 4 is one of the structural schematic diagrams of the open state of an umbrella rib-type fetal membrane fetoscope sheath of the present invention that pushes and separates the fetal membrane rib-type structural component.

FIG. 5 is the second structural schematic diagram of the open state of the umbrella rib-type fetooscope sheath for pushing the fetal membranes and the rib-type structure assembly of the rib cage of the present invention.

FIG. 6 is a view of the use state of the traditional fetoscope sheath to push the fetal membrane.

FIG. 7 is a view of the use state of the umbrella-bone-type fetal membrane-pressing fetoscope sheath of the present invention.

Marked in the figure: 1 is the camera, 2 is the laser guide wire, 3 is the fetoscope sheath body, 4 is the umbrella rib sliding sleeve, 5 is the first section of the umbrella rib push-pull rod, 6 is the first chute, 7 is the first A limit sleeve for pushing the umbrella rib assembly, 8 is the second chute, 9 is the limit sleeve for the second pushing umbrella rib assembly, 10 is the hinged shaft sleeve, 11 is the hinged mandrel, and 12 is the second section of the umbrella rib pusher Pull rod, 13 is a retractable elastic ring, 14 is the third segment rib push-pull rod, 15 is the hinge shaft connection hole seat, 16 is the third push rib assembly limit sleeve, 17 is the elastic ring fixing hole seat.

Detailed ways

With reference to accompanying drawings 1, 2, and 3, the present utility model is an umbrella-shaped fetoscope sheath for pushing fetal membranes, comprising a fetoscope sheath body 3 into which a camera 1 and a laser guide wire 2 can be inserted, and is characterized in that : The outer sheath wall of the described fetoscope sheath body 3 is provided with a push-spaced fetal membrane rib structure assembly, and the outer sheath wall of the described fetoscope sheath body 3 is also provided with the The push-spaced fetal membrane rib-type structural assembly cooperates with the first push rib assembly limit sleeve 7 and the second push rib assembly limit sleeve 9 that are relatively slidingly connected, and the camera at the bottom of the fetoscope sheath body 3 1. The exit of the laser guide wire 2 is provided with a third push rib assembly limit sleeve 16, and the bottom end of the push-spaced fetal membrane rib structure assembly is fixedly connected to the third push rib assembly limit Set of 16 on.

The described push-spaced membrane rib structure assembly includes an rib pulling sliding sleeve 4, a first section of rib push-pull rod 5, a second section of rib push-pull rod 5, which are arranged on the outer sheath wall of the fetoscope sheath body 3 from top to bottom. Umbrella rib push-pull rod 12, third section of rib push-pull rod 14, rib pull-through sleeve 4, first section of rib push-pull rod 5, second section of rib push-pull rod 12, and third section of rib section push-pull rod 14 in sequence Connected, the first section of the umbrella rib push-pull rod 5 respectively passes through the first sliding groove 6 provided on the inner side of the first pushing rib assembly limit sleeve 7, and the second sliding groove provided on the inner side of the second rib assembly limit sleeve 9. The groove 8 is connected with the second section of the umbrella rib push-pull rod 12 , and the third section of the umbrella rib push-pull rod 14 is fixedly connected to the limiting sleeve 16 of the third section of the umbrella rib assembly.

The first section of umbrella rib push-pull rod 5, the second section of umbrella rib push-pull rod 12, and the third section of umbrella rib push-pull rod 14 are correspondingly provided with eight and are equally spaced on the outer sheath wall of the fetoscope sheath body 3. superior.

The bottom of the first section of the rib push-pull rod 5 and both ends of the third section of the umbrella rib push-pull rod 14 are provided with hinged shaft sleeves 10, and the hinged shaft sleeves 10 at the bottom of the first section of the umbrella rib push-pull rod 5 can be clamped. At the bottom slot of the second chute 8, the two ends of the second rib push-pull rod 12 are provided with hinged joints with the first-section rib push-pull rod 5 and the third rib-section push-pull rod 14 respectively. The shaft hole, the hinged shaft sleeve 10 and the shaft hole are connected through the hinged mandrel 11 .

A hinge shaft connection hole seat 15 is fixedly arranged on the third push umbrella rib assembly limit sleeve 16 , and the hinge shaft connection hole seat 15 is between the hinge shaft sleeve 10 of the third section of umbrella rib push-pull rod 14 Connected by a hinged mandrel 11 .

An elastic ring fixing hole seat 17 is arranged on the outer side of the hinge sleeve 10 of the third section umbrella rib push-pull rod 14 connected to the second section of the umbrella rib push-pull rod 12, and the elastic ring fixing hole seat 17 is fixed with Retractable elastic ring 13; the retractable elastic ring 13 can make the compression effect more obvious.

The retractable elastic ring 13 is made of soft rubber material.

When the fetal membrane obstructs the sight of the operation, the umbrella rib of the rib cage-type structural component of the fetal membrane can be pushed down to pull the sliding sleeve 4, the rib structure is opened, the fetal membrane is pushed away, and a larger field of vision can be obtained; When using the umbrella rib push-pulling fetal membrane fetoscope sheath of the present invention, the rib pulling sliding sleeve 4 that pushes the diaphragm rib-type structural component spaced apart can be pushed down, and the first section of the rib push-pull rod 5 will move along the rib. Slide down with the first chute 6 and the second chute 8 until the rib pulls the sliding sleeve 4 and stops on the first push rib assembly limit sleeve 7, and the second section of the rib push-pull rod 12 and the The connection point of the three-section umbrella rib push-pull rod 14 opens outward, and forms 8 fulcrums, and the distance between the two symmetrical fulcrums is 5cm or 8cm. At the same time, the retractable elastic ring 13 provided can make the The compression effect is more obvious; specifically, the use state structure diagrams shown in Figures 4 and 5. When not in use, the rib pulling sliding sleeve 4 can be pulled upwards to push the rib structure of the rib spaced apart from the fetal membrane, and the rib structure can be retracted; specifically, as shown in FIG. Schematic diagram of the structure of the fetoscope sheath for pushing the fetal membranes.

As shown in Figure 6, it is the use state diagram of the traditional fetoscope sheath pushing the fetal membrane; as shown in Figure 7, it is the use status diagram of the umbrella rib type pushing fetal membrane fetoscope sheath of the present invention; Figure 6 Markings in and 7: 20 is the traditional fetoscopic sheath, 21 is the septal membrane, 22 is the field of view, 23 is the placental blood vessel, 24 is the placenta, and 25 is the umbrella-type push membrane fetoscopic sheath; 6. Compared with Fig. 7, it can be clearly seen that the field of view in Fig. 7 is greater than the field of view in Fig. 6. It can be seen from this that the umbrella rib type pushing fetal membrane fetoscope sheath of the present utility model can push larger. The area of the septum membrane is larger, and the target area for one-time exposure is larger.

It can be understood that the above specific description about the present utility model is only used to illustrate the present utility model and is not limited to the technical solutions described in the embodiments of the present utility model. Modifications or equivalent replacements are made to the new model to achieve the same technical effect; as long as the needs of use are met, they are all within the protection scope of the present invention.

Claims (7)

1. The utility model provides a fetal membrane fetal mirror sheath is bulldozed to rib formula, includes fetal mirror sheath body (3) that can put into camera (1), laser seal wire (2), its characterized in that: fetal mirror sheath body (3) outside sheath wall on be provided with and bulldoze interval fetal membrane rib formula structure subassembly fetal mirror sheath body (3) outside sheath wall on still be provided with bulldoze interval fetal membrane rib formula structure subassembly cooperation relative sliding connection's first bulldoze rib subassembly stop collar (7), second and bulldoze rib subassembly stop collar (9), be provided with the third in camera (1), laser seal wire (2) exit of fetal mirror sheath body (3) bottom and bulldoze rib subassembly stop collar (16), the bottom fixed connection who bulldozes interval fetal membrane rib formula structure subassembly bulldoze on rib subassembly stop collar (16) in the third.

2. The umbrella rib type push fetal membrane fetal mirror sheath of claim 1, wherein: bulldoze interval fetal membrane rib formula structure subassembly including setting up rib pulling sliding sleeve (4) on fetal mirror sheath body (3) outside sheath wall from top to bottom, first section rib push-and-pull rod (5), second section rib push-and-pull rod (12), third section rib push-and-pull rod (14), rib pulling sliding sleeve (4), first section rib push-and-pull rod (5), second section rib push-and-pull rod (12), third section rib section push-and-pull rod (14) link to each other in proper order, first section rib push-and-pull rod (5) pass first spout (6) that bulldozes rib subassembly stop collar (7) inboard setting respectively, second spout (8) that second bulldozes rib subassembly stop collar (9) inboard setting link to each other with second section rib push-and-pull rod (12), third section rib push-and-pull rod (14) fixed connection bulldozes on rib subassembly stop collar (16).

3. An umbrella rib type push fetal membrane fetal mirror sheath as claimed in claim 2, wherein: the first section of umbrella rib push-pull rod (5), the second section of umbrella rib push-pull rod (12) and the third section of umbrella rib push-pull rod (14) are respectively provided with eight umbrella ribs and are distributed on the outer sheath wall of the fetal mirror sheath body (3) at equal intervals.

4. An umbrella rib type push fetal membrane fetal mirror sheath as claimed in claim 2, wherein: the umbrella is characterized in that the bottom of the first section of umbrella rib push-pull rod (5) and the two ends of the third section of umbrella rib push-pull rod (14) are respectively provided with a hinged shaft sleeve (10), the two ends of the second section of umbrella rib push-pull rod (12) are respectively provided with shaft holes hinged with the first section of umbrella rib push-pull rod (5) and the third section of umbrella rib push-pull rod (14), and the hinged shaft sleeves (10) are connected with the shaft holes through a hinged mandrel (11).

5. The umbrella rib type push fetal membrane fetal mirror sheath of claim 1, wherein: and a hinge shaft connecting hole seat (15) is fixedly arranged on the third push-press umbrella rib assembly limiting sleeve (16), and the hinge shaft connecting hole seat (15) is connected with a hinge shaft sleeve (10) of a third section umbrella rib push-pull rod (14) through a hinge mandrel (11).

6. An umbrella rib type push fetal membrane fetal mirror sheath as claimed in claim 4, wherein: an elastic ring fixing hole seat (17) is arranged on the outer side of a hinged shaft sleeve (10) of a third section of umbrella rib push-pull rod (14) at one end connected with the second section of umbrella rib push-pull rod (12), and a retractable elastic ring (13) is fixed on the elastic ring fixing hole seat (17).

7. An umbrella rib type push fetal membrane fetal mirror sheath as claimed in claim 6, wherein: the retractable elastic ring (13) is made of soft rubber materials.

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