CN211156158U - Adjustable soft cervical dilator - Google Patents

Abstract

The utility model discloses an adjustable soft cervical dilator, which belongs to the field of medical devices and comprises a head part, a rod part is fixedly connected on the right side of the head part, the rod part is shaped into an arc of physiological bending of a cervical canal, a handle is fixedly connected at the right end of the rod part, an anti-slip sleeve is fixedly sleeved on the surface of the handle, anti-slip lines are arranged on the surface of the anti-slip sleeve, the head part and the rod part which are arranged on the anti-slip sleeve are made of silica gel materials, the cervical canal can be dilated softly and slowly, the damage to the cervical canal caused by forced dilation of mechanical stimulation can be reduced to a greater extent, the stimulation to the uterus can be reduced, compared with a method for dilating the cervical canal by drugs, the device can achieve the effect of effectively dilating the cervical canal and avoid the side effect of drugs, the set piston indicating point has the effect of adjustment, the length of the top end of a dilating strip entering the cervical canal can be individually adjusted according to, the safety of the device is increased.

Description

Adjustable soft cervical dilator

Technical Field

The utility model relates to a medical device field, more specifically say, relate to a soft cervical device that expands of controllability.

Background

In recent years, with the development of assisted reproductive technologies in the reproductive field, in vitro fertilization-embryo transfer (IVF-ET), which is a rather critical step in IVF-ET in determining success or failure, is widely known as an important medical technology for treating infertility.

The embryo transplantation is that a professional doctor places a transplantation outer tube into the inner opening of a cervix through a vagina and cervix, an embryo is loaded in a soft tube of a culture solution and is slowly injected at a position 1.0-1.5 cm away from the uterine bottom through the outer tube, the transplantation tube is taken out and sent to a culture room for checking whether embryo residue exists, the embryo planting rate and the pregnancy rate are directly influenced by the difficulty degree of embryo transplantation, the depth of the embryo placed in the uterine cavity, the type of the transplantation tube and the like in the operation process, and reportedly, a difficult transplant person obviously reduces the embryo transplantation planting rate and the pregnancy rate by about ten percent compared with a person who is easy to transplant.

According to the difficulty and the ease of the transplanting process, the inner and outer tubes are smoothly transplanted to pass through the cervical tube, the transplanting is easy without the help of instruments, and instruments such as cervical clamps, iron cores, probes, expansion strips and the like are required to be used for assisting in placing the tubes in the transplanting process, so that the transplanting difficulty is called.

The traditional person who is difficult to transplant the external tube can not smoothly pass through the cervical canal, the cervix uteri can be detected and dilated by using a simple metal probe, the probe is known to be made of hard metal material, when the probe is forcefully and mechanically dilated to pass through the internal opening of the cervix uteri, the mucosa of the cervical canal can be inevitably damaged, even the cervix uteri is cracked to cause bleeding, the simple metal probe is a linear long rod-shaped object with the same thickness, and is not attached with an adjustable piston indicating point, when the probe passes through the internal opening of the cervical canal, the probe can directly enter the uterine cavity and even reach or approach the bottom of the uterus due to the inertia effect of force, under the condition, the iatrogenic mechanical damage of the endometrium can be caused to reduce the embryo planting rate and the pregnancy rate, meanwhile, the hard operation of the metal probe can cause strong stimulation to the uterine cervix uteri, the release of endogenous uterus contractility is stimulated, the, to this end, we have devised an adjustable soft cervical dilator device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Problem to exist among the prior art, an object of the utility model is to provide a soft cervical dilator of adjustability, the head and the pole portion that it set up adopt the silica gel material to make, can softly slowly expand the cervix, furthest's reduction is because mechanical stimulation expands by force and to the damage of cervical canal, can reduce the stimulation to the uterus, and compare with medicine expansion cervical method, this device both can reach the side effect that effectively expands the cervix effect and can avoid the medicine, the piston point of setting has the effect of regulation, can be according to every patient's neck pipe length and the length that the individualized regulation expands a top and gets into the cervical canal, the safety in utilization of device has been increased.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

An adjustable soft cervical dilator comprises a head, a right side fixedly connected with rod part of the head, the shape of the rod part is an arc shape of physiological bending of a cervical canal, a right end fixedly connected with handle of the rod part, an anti-slip sleeve is fixedly sleeved on the surface of the handle, anti-slip lines are arranged on the surface of the anti-slip sleeve, a piston indicating point is sleeved on the surface of the rod part in a sliding manner, a through hole is arranged at the middle position of the piston indicating point, the rod part is sleeved in the through hole in a sliding manner, the inner diameter of the through hole is larger than the outer diameter of the rod part, a sliding groove is arranged on the inner wall of the upper end of the through hole, a groove is arranged on the inner wall of the upper end of the sliding groove, a limiting groove is arranged on the inner wall of the right side of the sliding groove, a countersunk groove is arranged on the surface of the right side of the piston indicating point, the head and the, can reduce the stimulation to the uterus, and compare with the method of medicine expansion cervix, the device both can reach effective cervical dilatation effect and can avoid the side effect of medicine, and the piston point of setting has the effect of adjusting, can be according to every patient's neck pipe length and individualized regulation expand the length that the strip top got into the cervical canal, has increased the safety in utilization of device.

Furthermore, a clamping block is connected in the sliding groove in a sliding mode, a guide pillar is fixedly connected to the upper end of the clamping block, a spring is fixedly sleeved on the surface of the guide pillar, the upper end of the spring is in contact connection with a groove, and when the spring is extruded by the clamping block, the spring has the effect of compression elasticity, and the clamping block has the effect of automatic fastening through the elasticity.

Further, the lower extreme inner wall fixedly connected with of recess protects the pad down, the shape of protecting the pad down is the arc, the upper end contact of protecting the pad down is connected with pole portion, the upper end surface of protecting the pad down is equipped with anti-skidding line, and the lower protection pad of setting can avoid pole portion and piston pointer to produce the extrusion, has prolonged the life of pole portion.

Furthermore, the surface of the clamping block is fixedly connected with a limiting rod, a limiting groove is sleeved on the surface of the limiting rod in a sliding mode, a counter sink groove is sleeved on the outer side of the limiting rod, the limiting rod is arranged to have the function of controlling the movement of the clamping block, and the position of the piston indicating point can be conveniently adjusted by a worker.

Further, the shape of fixture block is the arc, the lower extreme fixedly connected with of fixture block goes up the protection pad, the lower extreme contact of going up the protection pad is connected with pole portion, and the last protection pad that sets up can avoid pole portion and fixture block to produce the extrusion, has prolonged the life of pole portion.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) the head and the pole portion that this scheme set up adopt the silica gel material to make, can expand the cervix uteri softly and slowly, furthest's reduction is because mechanical stimulation expands by force and to the damage of cervical canal, can reduce the stimulation to the uterus, and compare with medicine expansion cervix uteri method, this device both can reach the effect of effectively expanding the cervix uteri and can avoid the side effect of medicine, the piston point of setting has the effect of regulation, can be according to every patient's cervical canal length and the length that the individualized regulation expands a top and get into the cervical canal, the safety in utilization of device has been increased.

(2) The sliding connection has the fixture block in the spout, and the upper end fixedly connected with guide pillar of fixture block, the fixed cover in surface of guide pillar have connect with the spring, and the upper end contact of spring is connected with the recess, and when the spring received the extrusion of fixture block, has the effect of compression elasticity, and elasticity makes the fixture block have automatic fastening's effect.

(3) The lower extreme inner wall fixedly connected with of recess protects the pad down, and the shape of protecting the pad down is the arc, and the upper end contact of protecting the pad down is connected with pole portion, and the upper end surface of protecting the pad down is equipped with anti-skidding line, and the lower protection pad that sets up can avoid pole portion and piston point to produce the extrusion, has prolonged the life of pole portion.

(4) The surface of the clamping block is fixedly connected with a limiting rod, a limiting groove is sleeved on the surface of the limiting rod in a sliding mode, a counter sink groove is sleeved on the outer side of the limiting rod, and the arranged limiting rod has the function of controlling the movement of the clamping block, so that a worker can conveniently adjust the position of the piston indicating point.

(5) The fixture block is arc-shaped, the lower end of the fixture block is fixedly connected with an upper protection pad, the lower end of the upper protection pad is in contact connection with the rod part, the upper protection pad is arranged to prevent the rod part from being extruded with the fixture block, and the service life of the rod part is prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of a piston indicating point mounting structure of the present invention;

fig. 3 is a side view of the piston indicating point mounting structure of the present invention.

The reference numbers in the figures illustrate:

1 head, 2 rod parts, 3 handles, 31 antiskid sleeves, 4 piston indication points, 41 through holes, 42 sliding grooves, 43 grooves, 44 limiting grooves, 45 countersunk grooves, 5 clamping blocks, 51 guide posts, 52 springs, 53 limiting rods, 54 upper protection pads and 6 lower protection pads.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-3, an adjustable soft cervical dilator comprises a head 1, referring to fig. 1-3, a rod 2 is fixedly connected to the right side of the head 1, the head 1 is circular, the rod 2 is shaped like an arc of a physiological curve of a cervical canal, the rod 2 is used for inserting into the cervix, the cervix can be dilated softly and slowly, damage to the cervical canal due to forced dilatation by mechanical stimulation is reduced to a greater extent, a handle 3 is fixedly connected to the right end of the rod 2, an anti-slip sleeve 31 is fixedly sleeved on the surface of the handle 3, the anti-slip sleeve has an anti-slip function, the use safety of the dilator is improved, anti-slip threads are arranged on the surface of the anti-slip sleeve 31, a piston indication point 4 is sleeved on the surface of the rod 2 in a sliding manner, the piston indication point 4 is used for limiting the insertion depth of the rod 2, the length of the top end of the rod 2 entering into the cervical canal can be individually adjusted, the intermediate position of piston indicating point 4 is equipped with through-hole 41, and sliding sleeve has pole portion 2 in through-hole 41, and the internal diameter of through-hole 41 is greater than the external diameter of pole portion 2, and the upper end inner wall of through-hole 41 is equipped with spout 42, and the upper end inner wall of spout 42 is equipped with recess 43, and the right side inner wall of spout 42 is equipped with spacing groove 44, and the right side surface of piston indicating point 4 is equipped with countersunk groove 45.

Please refer to fig. 2 and 3, a fixture block 5 is slidably connected in the chute 42, an upper end of the fixture block 5 is fixedly connected with a guide pillar 51, a spring 52 is sleeved on a surface of the guide pillar 51, a groove 43 is connected to an upper end of the spring 52 in a contact manner, when the spring 52 is extruded by the fixture block 5, the spring has a function of compression elasticity, the fixture block 5 has an automatic fastening function due to the elasticity, a lower end inner wall of the groove 43 is fixedly connected with a lower protection pad 6, the lower protection pad 6 is arc-shaped, the upper end of the lower protection pad 6 is connected with a rod portion 2 in a contact manner, an upper end surface of the lower protection pad 6 is provided with anti-slip patterns, the arranged lower protection pad 6 can prevent the rod portion 2 and the piston.

Referring to fig. 2 and 3, a limiting rod 53 is fixedly connected to the surface of the fixture block 5, a limiting groove 44 is slidably sleeved on the surface of the limiting rod 53, a countersunk groove 45 is sleeved on the outer side of the limiting rod 53, the limiting rod 53 is arranged to control the fixture block 5 to move, so that a worker can conveniently adjust the position of the piston indicating point 4, the fixture block 5 is arc-shaped, an upper protection pad 54 is fixedly connected to the lower end of the fixture block 5, the lower end of the upper protection pad 54 is in contact connection with the rod portion 2, the upper protection pad 54 is arranged to prevent the rod portion 2 and the fixture block 5 from being extruded, and the service life of the rod portion 2 is prolonged.

The adjustable soft cervical dilator adopts silica gel material based on the principle of pure metal probe, the shape is made into an arc rod-shaped structure with physiological bending of cervical canal, the length is 10cm, the diameter is 3mm, the cervical orifice can be dilated softly and slowly, the damage to the cervical canal caused by the forced dilation of mechanical stimulation can be reduced to a greater extent, the stimulation to the uterus can be reduced, and compared with the method for dilating the cervical orifice by using medicine, the device can achieve the effect of effective cervical orifice dilation and can avoid the side effect of the medicine, when the piston indication point 4 needs to be adjusted, the limiting rod 53 is moved upwards to drive the clamping block 5 to move upwards to extrude the spring 52, the spring 52 forms compression elasticity, the lower end of the clamping block 5 moves upwards to be separated from the contact with the rod part 2, then the limiting rod 53 is released after the piston indication point 4 is moved to a proper position, the spring 52 releases the elasticity, and pushes the clamping, the fixture block 5 moves downwards to be clamped at the position of the piston indicating point 4 fixed on the surface of the rod part 2, the arranged piston indicating point 4 has an adjusting effect, the length of the top end of the expansion strip entering the cervical canal can be adjusted individually according to the length of the cervical canal of each patient, and the use safety of the device is improved.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims (5)

1. An adjustable soft cervical dilator device comprising a head (1), characterized in that: the right side of the head part (1) is fixedly connected with a rod part (2), the shape of the rod part (2) is an arc shape of physiological bending of a cervical canal, the right end of the rod part (2) is fixedly connected with a handle (3), the surface of the handle (3) is fixedly sleeved with an anti-slip sleeve (31), the surface of the anti-skid sleeve (31) is provided with anti-skid grains, the surface of the rod part (2) is sleeved with a piston indicating point (4) in a sliding way, a through hole (41) is arranged in the middle of the piston indicating point (4), the rod part (2) is sleeved in the through hole (41) in a sliding manner, the inner diameter of the through hole (41) is larger than the outer diameter of the rod part (2), the inner wall of the upper end of the through hole (41) is provided with a sliding groove (42), a groove (43) is arranged on the inner wall of the upper end of the sliding groove (42), a limiting groove (44) is arranged on the inner wall of the right side of the sliding groove (42), the right side surface of the piston indicating point (4) is provided with a countersunk groove (45).

2. The adjustable cervical soft dilation device of claim 1, wherein: a clamping block (5) is connected in the sliding groove (42) in a sliding mode, a guide pillar (51) is fixedly connected to the upper end of the clamping block (5), a spring (52) is fixedly sleeved on the surface of the guide pillar (51), and the upper end of the spring (52) is connected with a groove (43) in a contact mode.

3. The adjustable cervical soft dilation device of claim 1, wherein: protection pad (6) under the lower extreme inner wall fixedly connected with of recess (43), the shape of protection pad (6) is the arc down, the upper end contact of protection pad (6) is connected with pole portion (2) down, the upper end surface of protection pad (6) is equipped with anti-skidding line down.

4. The adjustable cervical soft dilation device of claim 2, wherein: the surface of the clamping block (5) is fixedly connected with a limiting rod (53), the surface of the limiting rod (53) is sleeved with a limiting groove (44) in a sliding mode, and the outer side of the limiting rod (53) is sleeved with a countersunk groove (45).

5. The adjustable cervical soft dilation device of claim 2, wherein: the shape of fixture block (5) is the arc, the lower extreme fixedly connected with of fixture block (5) protects pad (54), the lower extreme contact of going up protection pad (54) is connected with pole portion (2).

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