CN217696765U - Outer tube structure of embryo transplantation device for medical science - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, the utility model provides a can be enough to deal with the multiple radian of transplanting the operation, adapt to different uterus positions, reduce the damage probability of transplanting the pipe to genital tract and uterus inner wall, easy and simple to handle comfortable embryo transplantation device. The utility model provides a medical science is with outer tubular structure of embryo transfer device, includes that some extends to the patient uterus and along the crooked body of patient's uterus inner wall, the body is including lieing in the internal anterior segment of patient and some back end that lies in the patient, the back end is kept away from the one end of anterior segment is provided with the socket, the anterior segment is kept away from the one end of back end is the free end, the body is provided with pulls the anterior segment will the free end is located target location's tractor. When the retractor is operated, the retractor drives the front section to bend, so that the front section can adapt to different operation requirements of doctors with different radians.

Description

Outer tube structure of embryo transplantation device for medical science

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an outer tubular structure of embryo transplantation device for medical science.

Background

With the development of human assisted reproductive technology, it has become the main treatment mode for treating infertility diseases at present, and the treatment process includes: taking ovum from female, taking sperm from male, in vitro fertilization of sperm and ovum, embryo development, embryo transplantation (embryo fresh transplantation or transplantation after freezing recovery), etc.

Wherein, the embryo transfer operation is to transfer the embryo into the uterine cavity of the female uterus through a transfer tube. The transplanting tube structure mainly comprises an outer tube (provided with a metal core inserting tube, wherein one end of the outer tube is made of transparent plastic, the other end of the outer tube is an inner tube inserting port, and the middle section of the outer tube is made of hard opaque plastic) and an inner tube, the outer tube is a hollow pipeline structure capable of accommodating the inner tube to be inserted and taken out, and the texture of the outer tube is harder than that of the inner tube; the inner tube also is hollow pipeline structure, and one end design has can be connected anastomotic interface with 1ml syringe injection mouth, inhales and fixes transplantation liquid and embryo in the near mouth of a pipe department of inner tube anterior segment through the suction of control syringe, and the inner tube mostly is the hose design, and longer 2.5cm than the length of outer tube.

The embryo transplantation operation steps can be simply summarized as follows:

1. the nursing staff provides the image of the uterus of the pregnant woman for the clinician by operating the B-ultrasonic.

2. The outer tube of the transplanting tube is held by a clinician, the outer tube is inserted into the uterine cavity by combining the ultrasonic cooperation of nursing staff until the opening of the outer tube is close to the uterine bottom and is kept, and the inserting core tube is pulled out.

3. The embryo laboratory personnel holds a 1ml syringe part connected with an inner tube (sucking an embryo), the inner tube is inserted into the tube cavity of the outer tube till the bottom, the distance between the inner tube opening and the endometrium at the bottom of the uterus is confirmed under the prompt of B ultrasonic image, the piston handle of the syringe is pushed, the embryo is injected into the uterus cavity, then the embryo laboratory personnel simultaneously withdraws from the inner tube and the outer tube and checks whether the embryo exists under a microscope, and the conditions of whether the tube cavity of the inner tube and the outer tube is blocked, whether mucus exists, whether blood staining exists and the like are evaluated to judge whether the transplantation operation is smooth or not.

In actual operation, because women's uterus position has different situations such as preceding position, level, back position, and the different uterus positions that this kind of women individual difference leads to cause the outer tube to insert the operation difficult and easy degree and differ, if excessive anteversion or back drive appear, then the intubate is more difficult, and clinician can take out the outer tube, then uses aseptic gauze to hold the outer tube anterior segment and breaks into a certain radian into two with the fingers and thumb and then carries out the outer tube and insert. On there is the basis of difference in different women's uterus positions, the compliance of endometrium in addition, perhaps there is inflammation, damage in women's cervix uteri, or there is polyp in the cervix uteri, or the circumstances such as genital tract anatomy is unusual, and is swift inadequately when more can leading to the outer tube to insert, and the outer tube mouth of pipe damages the uterus inner wall even and takes place to bleed, and then is hindered when leading to the inner tube to insert the outer tube again, blocks up the inner tube even, influences the patient and diagnoses comfortable experience, influences the process of embryo implantation and final clinical pregnancy ending.

Aiming at the problems, the design of a certain fixed radian is carried out on a common straight pipe type transplanting pipe (the transplanting pipe is a straight pipe without a radian, and the straight pipe type transplanting pipe is commonly used), and the design of a smooth ball head shape is also carried out on an inner pipe orifice and an outer pipe orifice, so that the accidental damage to the female genital tract and the inner wall of the uterus in the pipe orifice inserting process is avoided. However, as with the different uterine locations present in the different female patients listed above, these designs do not address the different situations that exist for all female patients.

SUMMERY OF THE UTILITY MODEL

In order to solve current embryo transfer pipe, including the straight tube type transplantation pipe and be the unable high efficiency of transplantation pipe of certain fixed radian accomplish the operation problem of outer tube intubate location, the utility model provides a can be enough to deal with the multiple radian of transplanting the operation, adapt to different uterus positions, reduce the transplantation pipe to the damage probability of genital tract and uterus inner wall, easy and simple to handle comfortable embryo transfer device.

Some embodiments adopted to solve the above technical problems include:

the utility model provides a medical science is with outer tubular structure of embryo transfer device, includes that some extends to the patient uterus and along the crooked body of patient's uterus inner wall, the body is including lieing in the internal anterior segment of patient and some back end that lies in the patient, the back end is kept away from the one end of anterior segment is provided with the socket, the anterior segment is kept away from the one end of back end is the free end, the body is provided with pulls the anterior segment will the free end is located target location's tractor.

The anterior segment is drawn by a retractor and the free end of the anterior segment is positioned at a target location. When the retractor is operated, the retractor drives the front section to be bent, so that the front section can adapt to different operation requirements of doctors with different radians, and the doctors can rapidly insert the tube body into the body of a patient. The outer tube structure has good general performance and is easy to operate.

Preferably, the retractor comprises a traction wire, one end of the traction wire is fixed on the front section, and the other end of the traction wire is positioned on the part of the rear section, which is positioned outside the patient body, through a positioning mechanism.

The tractor comprises the traction wire, the traction wire can be set to be thin in diameter, and due to the fact that the traction wire is provided with the thin diameter, the diameter of the circumscribed circle of the outer tube structure cannot be increased greatly due to the arrangement of the tractor, and discomfort of a patient is reduced.

Meanwhile, the traction wire has good flexibility and can meet different operation requirements.

Preferably, the positioning mechanism comprises a first part arranged on the rear section and a second part fixed with the traction wire, and the position of the second part relative to the first part is adjusted to enable the traction wire to pull the front section to position the free end at a target position.

The positioning mechanism is comprised of two parts, the position of the second part relative to the first part is adjusted to cause the pull wire to pull the leading section, bend the leading section into the appropriate arc and position the free end at the target location. The operating performance of the positioning mechanism is optimized.

Preferably, the first portion is provided with the constant head tank, the constant head tank has a plurality ofly, and is a plurality of the constant head tank evenly sets up along the length direction of first portion, the second portion be provided with constant head tank complex location arris.

The positioning groove is matched with the positioning ridge, so that the second part can be positioned at different positions of the first part, and the operation performance of the positioning mechanism is further optimized.

Preferably, the second part is provided with a pull ring to facilitate handling of the second part.

By arranging the pull ring, a doctor can control the pull ring by fingers, so that the second part is operated, and the operation performance of the second part is further optimized.

Preferably, the pull ring is a closed circular ring; alternatively, the pull ring is a ring having a mouth.

The pull ring can be in various forms to adapt to the operation habit of a doctor and optimize the operation performance of the pull ring.

Preferably, the cross section of the positioning groove is in a sawtooth shape; or the cross section of the positioning groove is in an arc shape larger than 1/2 of a circle.

The cross section of constant head tank has the multiform and can select, and the function of location second portion can all be realized to the multiple cross sectional shape of constant head tank, and the constant head tank is easily processed.

Preferably, the distance between one end of the traction wire fixed on the front section and the free end is 3 mm to 6 mm.

Preferably, the width of the traction wire is 1.5 mm to 2.5 mm.

Preferably, the tube body is further provided with a protective body for limiting the distance between the traction wire and the tube body; the protective body is a protective layer wrapping a part of the pipe body, and the pipe body and a part of the traction wire are positioned in a space formed by the protective layer; or the protective body is a channel arranged in the tube body, two ends of the channel penetrate through the outer wall of the tube body, the channel is not communicated with the inner wall of the tube body, and a part of the traction wire is positioned in the channel.

Through setting up the protector, when doctor operated the taut haulage wire of second part, the haulage wire was injectd in reasonable within range for the distance of body, prevents that doctor from operating the taut haulage wire of second part to cause the distance of haulage wire and body too big and cause the patient to be uncomfortable.

Compared with the prior art, the utility model provides an outer tubular structure of embryo transplantation device for medical science has following advantage:

1. is suitable for different uterus positions and improves the efficiency of the transplantation operation. Can make the anterior segment of outer tube form and be enough to handle the multiple radian of transplanting the operation to adjust at any time or keep fixed, cooperate the rotation of clinician hand, form multiple insertion angle of marcing, the quick location of inserting of the outer tube of being convenient for has improved operation efficiency.

2. Reduce the damage of the outer tube to the genital tract and the inner wall of the uterus. The outer tube structure does not contain a metal core-inserting tube, and the front section of the outer tube can form any radian, so that in the process of inserting the outer tube into the genital tract, the cervix and the uterine cavity, various obstacles encountered in the advancing process of the outer tube can be detected according to the conditions of polyp, inflammation, bleeding, narrow cervical orifice and the like, the outer tube is made to advance at a proper angle, the probability of damage to the genital tract and the inner wall of the uterus caused by insertion is reduced, and the damage to the genital tract and the inner wall of the uterus caused by the cooperation of the front end of the previous metal core-inserting tube and the outer tube in the inserting and positioning process is completely avoided.

3. The situation that the inserting end of the outer tube is likely to cause pollution when the radian is manually twisted is avoided. When the outer tube is blocked in the inserting process, a clinician can take out the outer tube, the inserting section of the outer tube is wrapped by sterile gauze to be twisted so as to enable the outer tube to form a certain radian, then the outer tube is inserted and positioned, although the clinician is provided with sterile gloves and is twisted by using the sterile gauze, the possibility that the outer tube is polluted still exists, and infection and clinical pregnancy ending can be caused when the outer tube is inserted again. The improved outer tube is only required to be inserted for 1 time, and the operation of repeatedly inserting and taking out the radian of the outer tube is avoided, so that the condition that pollution is possibly caused is avoided.

4. The operation is simple, the structure of the outer tube is simple, and the operation is easy to be mastered by a clinician.

5. The metal core inserting tube is removed, and the manufacturing cost is low. On the basis of the straight pipe type transplanting pipes commonly used in all the current reproductive centers, the manufacturing of the metal core inserting pipe is eliminated, and only the outer pipe is subjected to low-cost modification design, so that the structure is simplified, and the cost performance is high.

Drawings

For purposes of explanation, several embodiments of the present technology are set forth in the following figures. The following drawings are incorporated herein and constitute a part of the detailed description. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring the concepts of the subject technology.

FIG. 1 is a schematic view of an outer tubular structure of a medical embryo transfer device when the traction wire is not under stress.

FIG. 2 is a schematic view of the outer tube structure of the medical embryo transfer device under stress.

Fig. 3 is a partial schematic view of the location mechanism assembled with the rear section.

Figure 4 is an exploded view of one form of the positioning mechanism.

Fig. 5 is a schematic view of the first portion when it is cylindrical.

Fig. 6 is a partial schematic view of the back end, wherein the protective body in fig. 6 is a channel.

In the figure:

1. tube, 11, front segment, 111, free end, 12, back segment, 121, socket, 13, protector.

2. The retractor comprises a retractor body 21, a traction wire 22, a positioning mechanism 221, a first part 2211, a positioning groove 222, a second part 2221, a positioning rib 2222, a pull ring 22221 and a mouth part.

Detailed Description

The specific embodiments illustrated below are intended as descriptions of various configurations of the subject technology and are not intended to represent the only configurations in which the subject technology may be practiced. Specific embodiments include specific details for the purpose of providing a thorough understanding of the subject technology of the present invention. It will be apparent, however, to one skilled in the art that the subject technology is not limited to the specific details shown herein and may be practiced without these specific details.

Referring to fig. 1 to 6, an outer tube structure of a medical embryo transfer device comprises a tube body 1, a part of which extends into the uterus of a patient and is bent along the inner wall of the uterus of the patient, wherein the tube body comprises a front section 11 positioned in the patient and a rear section 12 positioned in the patient, a socket 121 is arranged at one end of the rear section 12 far away from the front section 11, a free end 111 is arranged at one end of the front section 11 far away from the rear section 12, and a retractor 2 for drawing the front section 11 to position the free end 111 at a target position is arranged on the tube body 1.

The tube body 1 can be made of plastic materials, and the front section 11 and the rear section 12 are of an integrated structure.

The shape of the socket 121 may be any shape, for example, a cylindrical shape, a spherical shape, or the like.

Referring to fig. 2-4, in one or more embodiments, the retractor 2 includes a pull wire 21, one end of the pull wire 21 is secured to the front section 11, and the other end of the pull wire 21 is positioned at a portion of the rear section 12 that is external to the patient by a positioning mechanism 22.

The pull wire 21 may be made of a plastic material. The traction wire 21 is tensioned, and the traction wire 21 drives the front section 11 to bend, so as to facilitate the insertion of the tube body 1 into the body of the patient. The pull wire 21 is released and the front section 11 returns to its unstressed state. Typically, the front section 11 is straight tubular when unstressed.

In one or more embodiments, the positioning mechanism 22 includes a first portion 221 disposed on the rear section 12 and a second portion 222 secured to the pull wire 21, and the position of the second portion 222 relative to the first portion 221 is adjusted to allow the pull wire 21 to pull the front section 11 to position the free end 111 at a target location.

The first portion 221 may be integral with the rear section 12, or the first portion 221 may be bonded to the rear section 12. The first portion 221 may be cylindrical, and the first portion 221 may be elongated.

The first portion 221 is provided with a plurality of positioning grooves 2211, the plurality of positioning grooves 2211 are uniformly arranged along the length direction of the first portion 221, and the second portion 222 is provided with a positioning rib 2221 matched with the positioning grooves 2211. The first portion 221 has a length direction arranged along the axial direction of the pipe body 1.

The greater the number of detents 2211, the greater the adjustment range of the front section 11. Therefore, a plurality of positioning grooves 2211 may be provided in actual design to increase the adjustment range of the front section 11. The positioning slot 2211 or the positioning rib 2221 should have a certain elastic deformation capability, and after the positioning slot 2211 is matched with the positioning rib 2221, the positioning slot 2211 or the positioning rib 2221 generates a certain elastic deformation, so that the positioning slot 2211 is in interference fit with the positioning rib 2221, and the first part 221 and the second part 222 are prevented from automatically disengaging.

In one or more embodiments, the second portion 222 is provided with a tab 2222 to facilitate manipulation of the second portion 222.

Referring to fig. 4-5, the tab 2222 is a closed circular ring; alternatively, the tab 2222 is a circular ring having a mouth portion 22221. The tab 2222 may be a unitary structure with the second portion 222, and the tab 2222 may also be bonded to the second portion 222.

The cross section of the positioning groove 2211 is zigzag; alternatively, the cross-sectional shape of the positioning groove 2211 is an arc shape larger than 1/2 of a circle.

In one or more embodiments, the end of the pull wire 21 secured to the front section 11 is spaced from the free end 111 by a distance of 3 mm to 6 mm. The end of the pull wire 21 secured to the front section 11 may be 1115 mm from the free end. The pull wire 21 may be bonded or fused to the front section 11. The pull wire 21 may be attached to the second portion 222 by adhesive or fusion bonding.

The width of the traction wire 21 is 1.5 mm to 2.5 mm. The pull wire 21 may have a width of 2 mm. The width of the traction wire 21 is not limited, and can be reasonably selected according to the requirement during specific design.

Referring to fig. 6, in one or more embodiments, the tubular body 1 is further provided with a protective body 13 defining the distance between the traction wire 21 and the tubular body 1.

The protective body 13 is a protective layer wrapping a part of the pipe body 1, and the pipe body 1 and a part of the traction wire 21 are located in a space formed by the protective layer. The protective layer may enclose a closed tubular shape, or alternatively, the protective layer may be an open tubular shape. A space is formed between the protective layer and the tube body 1, and the traction wire 21 is positioned in the space, so that the discomfort of a patient caused by the overlarge distance between the traction wire 21 and the tube body 1 when the traction wire 21 is tensioned is avoided.

Or, the protective body 13 is a channel arranged in the tube body 1, two ends of the channel penetrate through the outer wall of the tube body 1, the channel is not communicated with the inner wall of the tube body 1, and a part of the traction wire 21 is located in the channel.

The cross-sectional shape of the channel is not limited and can be reasonably selected according to the requirement. Typically the cross-sectional shape of the channel matches the cross-sectional shape of the pull wire 21. The cross-sectional area of the channel may be slightly larger than the cross-sectional area of the pull wire 21 so that the pull wire 21 may be freely displaced relative to the channel to effect tightening or loosening of the pull wire 21.

The subject technical solution and the corresponding details of the present invention are introduced above, it can be understood that the above description is only some embodiments of the subject technical solution of the present invention, and some details can be omitted during the specific implementation thereof.

In addition, in some embodiments of the above utility model, there is a possibility that a plurality of embodiments may be combined to be implemented, and various combinations are not limited to space and are not listed. The above embodiments can be freely combined and implemented by those skilled in the art according to the requirements in the specific implementation so as to obtain a better application experience.

In carrying out the subject matter of the present invention, those skilled in the art can obtain other details or figures according to the subject matter and figures of the present invention, and obviously these details are not departed from the subject matter and figures of the present invention, and still fall within the scope covered by the subject matter of the present invention.

Claims (10)

1. An outer tube structure of an embryo transfer device for medical use, comprising a tube body (1) which partially extends into the uterus of a patient and is bent along the inner wall of the uterus of the patient, the tube body comprising a front section (11) located inside the patient and a rear section (12) partially located inside the patient, wherein one end of the rear section (12) away from the front section (11) is provided with a socket (121), characterized in that: one end, far away from the rear section (12), of the front section (11) is a free end (111), and the pipe body (1) is provided with a tractor (2) for dragging the front section (11) to position the free end (111) at a target position.

2. The outer tubular structure of a medical embryo transfer device according to claim 1, wherein: the tractor (2) comprises a traction wire (21), one end of the traction wire (21) is fixed on the front section (11), and the other end of the traction wire (21) is positioned on the part of the rear section (12) outside the body of the patient through a positioning mechanism (22).

3. The outer tubular structure of a medical embryo transfer device according to claim 2, wherein: the positioning mechanism (22) comprises a first part (221) arranged on the rear section (12) and a second part (222) fixed with the traction wire (21), and the position of the second part (222) relative to the first part (221) is adjusted to enable the traction wire (21) to pull the front section (11) to position the free end (111) at a target position.

4. The outer tubular structure of a medical embryo transfer device according to claim 3, wherein: the first part (221) is provided with a plurality of positioning grooves (2211), the plurality of positioning grooves (2211) are uniformly arranged along the length direction of the first part (221), and the second part (222) is provided with a positioning edge (2221) matched with the positioning grooves (2211).

5. The outer tubular structure of a medical embryo transfer device according to claim 4, wherein: the second part (222) is provided with a pull tab (2222) for facilitating handling of the second part (222).

6. The outer tube structure of a medical embryo transfer device according to claim 5, wherein: the pull ring (2222) is a closed circular ring; alternatively, the tab (2222) is a ring having a mouth (22221).

7. The outer tubular structure of a medical embryo transfer device according to claim 4, wherein: the cross section of the positioning groove (2211) is in a sawtooth shape; or the cross section of the positioning groove (2211) is in an arc shape which is larger than 1/2 of a circle.

8. The outer tube structure of a medical embryo transfer device according to claim 2, wherein: the distance between one end of the traction wire (21) fixed on the front section (11) and the free end (111) is 3-6 mm.

9. The outer tube structure of a medical embryo transfer device according to claim 2, wherein: the width of the traction wire (21) is 1.5 mm to 2.5 mm.

10. The outer tubular structure of a medical embryo transfer device according to claim 2, wherein: the tube body (1) is further provided with a protective body (13) which limits the distance between the traction wire (21) and the tube body (1); the protective body (13) is a protective layer wrapping a part of the pipe body (1), and the pipe body (1) and a part of the traction wire (21) are positioned in a space formed by the protective layer; or the protective body (13) is a channel arranged in the pipe body (1), two ends of the channel penetrate through the outer wall of the pipe body (1), the channel is not communicated with the inner wall of the pipe body (1), and one part of the traction wire (21) is positioned in the channel.

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