CN221533961U - Multi-cavity semen catheter - Google Patents

Abstract

The utility model discloses a multi-cavity semen catheter, which relates to the technical field of medical devices, and comprises a liquid storage tube, a reserved section and a liquid injection hose, wherein one end of the reserved section is connected to the liquid storage tube, and the other end of the reserved section is connected to the liquid injection hose, a liquid storage cavity is provided inside the liquid storage tube, a reserved cavity is provided inside the reserved section, and a liquid injection cavity is provided inside the liquid injection hose, a sealing cover is provided at the end position of the liquid storage tube, a pull-out rod is connected through the inside of the sealing cover, and a handle is fixedly connected to one end of the pull-out rod; during the process of guiding liquid through the catheter, the utility model can simultaneously inflate an airbag outside the catheter, and the airbag is tightened after being inflated, so as to prevent the semen catheter from falling off when in use, indicate the stroke of liquid injection of the catheter, conveniently observe the advancement distance of the catheter during liquid injection, and conveniently select the appropriate liquid injection amount.

Description

A multi-lumen semen catheter

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a multi-cavity semen catheter.

Background Art

In the field of human reproductive treatment, male semen needs to be collected for semen analysis, artificial insemination or in vitro fertilization. Artificial insemination is an assisted reproductive technology used to solve the problem of women's inability to become pregnant naturally and increase women's chances of becoming pregnant. Currently, artificial insemination mostly uses a syringe or catheter to inject semen into the vagina, around the cervix and into the cervical canal.

For example, an artificial insemination device for assisted reproductive technology disclosed in the utility model patent with announcement number CN209826915U includes a sperm storage tube, an upper catheter, an annular limiting plate, a screw cap, a piston, a push rod, a spring, and an intrauterine hose. A liquid outlet is provided at the bottom of the sperm storage tube, and an annular plug is provided at the bottom of the upper catheter; an external thread is provided on the outer surface of the upper catheter; the annular limiting plate is threadedly connected to the outer surface of the upper catheter; the screw cap is buckled on the top of the upper catheter, a center hole is provided in the center of the top of the screw cap, and a square hole connected to the center hole is provided on the side of the center hole; the piston is arranged in the sperm storage tube; the push rod extends into the sperm storage tube and is connected to the piston; a plurality of clamping plates are alternately arranged on the push rod, and the clamping plates can move upward with the push rod and pass freely through the square hole; the spring is arranged in the sperm storage tube and is located between the annular plug and the piston. The utility model can directly deliver the collected semen into the uterine cavity in batches, avoiding the killing of sperm while swimming in the vagina, thereby effectively improving the sperm survival rate and the success rate of conception. However, during the catheterization process, there will be relative displacement between the semen catheter and the vagina, and the semen catheter will fall off when used. It is impossible to indicate the catheter injection stroke, and it is not convenient to observe the advancement distance of the catheter during injection and to select the appropriate injection volume.

Utility Model Content

The utility model aims to provide a multi-cavity semen catheter to solve the problems raised in the above-mentioned background technology that during the process of catheterization, relative displacement occurs between the semen catheter and the vagina, the semen catheter may fall off when in use, the catheter injection stroke cannot be indicated, the advancement distance of the catheter during injection is inconvenient to observe, and the appropriate injection amount is inconvenient to select.

A multi-cavity semen catheter comprises a liquid storage tube, a reserved section and a liquid injection hose, wherein one end of the reserved section is connected to the liquid storage tube, and the other end of the reserved section is connected to the liquid injection hose, a liquid storage cavity is provided inside the liquid storage tube, a reserved cavity is provided inside the reserved section, and a liquid injection cavity is provided inside the liquid injection hose, a sealing cover is provided at the end position of the liquid storage tube, a pulling rod is connected through the sealing cover, a handle is fixedly connected to one end of the pulling rod, and the other end of the pulling rod is located inside the liquid storage tube and is connected to a piston head, a limit plate is provided at the end of the liquid storage tube, an anti-slip mechanism is connected to the outside of the liquid storage tube, and a guiding mechanism is connected between the sealing cover and the pulling rod.

Preferably, the anti-slip mechanism comprises an airbag cushion sleeved on the outside of the liquid storage tube, an inflation catheter is inserted into the interior of the airbag cushion, a push rod is connected to the outer surface of the handle, the end of the push rod is connected to a push head matching the inflation catheter, an air inlet cavity is provided inside the inflation catheter, and during the process of catheter liquid conduction, the airbag on the outside of the catheter can be inflated synchronously, and the airbag is tightened after being inflated to prevent the semen catheter from falling off during use.

Preferably, the push rod passes through the interior of the limiting plate, and the push rod and the inflation tube are on the same axis, which can ensure that the push rod can be accurately inserted into the interior of the inflation tube.

Preferably, the guiding mechanism includes a guiding frame fixed to the outer surface of the sealing cover, the outer surface of the pull rod is provided with a connecting sleeve, the top of the connecting sleeve is connected to a linkage block that is inserted into the inside of the guiding frame, and the top of the linkage block is connected to a guiding head, which can indicate the stroke of catheter injection, facilitate observation of the advancement distance during catheter injection, and facilitate selection of a suitable injection volume.

Preferably, a slide groove for sliding of the linkage block is provided inside the guide frame, and the guide head is clamped on the outside of the guide frame. The linkage block slides in the slide groove to drive the guide head to indicate at different positions.

Preferably, a sealing ring is provided at the connection between the liquid storage tube, the reserved section and the liquid injection hose, and a guide groove is opened inside the reserved section. The sealing ring can increase the sealing performance of the connection between the liquid storage tube, the reserved section and the liquid injection hose.

Preferably, an extrusion head is provided at the end of the piston head, the outer diameter of the extrusion head is matched with the inner diameter of the injection hose, and the piston head drives the extrusion head through the injection hose to completely discharge the semen remaining in the injection hose.

Compared with the prior art, the beneficial effects of the utility model are:

1. Through the anti-drop mechanism, the airbag on the outside of the catheter can be inflated synchronously during the process of catheterizing liquid. After the airbag is inflated, it is tightened to prevent the semen catheter from falling off during use.

2. The indicating mechanism can indicate the injection stroke of the catheter, so that the advancement distance of the catheter during injection can be easily observed and the appropriate injection volume can be easily selected.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a multi-cavity semen catheter of the utility model;

FIG2 is a schematic diagram of the axial structure of a multi-cavity semen catheter of the utility model;

FIG3 is a partial cross-sectional view of a multi-cavity semen catheter of the utility model;

FIG4 is a schematic structural diagram of an anti-drop mechanism of a multi-cavity semen catheter of the present invention;

FIG. 5 is a schematic structural diagram of an indicating mechanism of a multi-cavity semen catheter of the present invention.

In the figure: 1. liquid storage tube; 2. reserved section; 3. liquid injection hose; 4. liquid storage chamber; 5. reserved chamber; 6. liquid injection chamber; 7. sealing cover; 8. pull rod; 9. handle; 10. piston head; 11. limit plate; 12. airbag cushion; 13. inflation catheter; 14. push rod; 15. push head; 16. air inlet chamber; 17. guide frame; 18. connecting sleeve; 19. linkage block; 20. guide head; 21. extrusion head.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

First embodiment

Please refer to Figures 1-5, a multi-cavity semen catheter includes a liquid storage tube 1, a reserved section 2 and a liquid injection hose 3, one end of the reserved section 2 is connected to the liquid storage tube 1, and the other end of the reserved section 2 is connected to the liquid injection hose 3, the liquid storage tube 1 is provided with a liquid storage cavity 4, the reserved section 2 is provided with a reserved cavity 5, the injection hose 3 is provided with an injection cavity 6, a sealing cover 7 is provided at the end of the liquid storage tube 1, a pull-out rod 8 is connected through the sealing cover 7, one end of the pull-out rod 8 is fixedly connected to a handle 9, and the other end of the pull-out rod 8 is located inside the liquid storage tube 1 and is connected to a piston head 10, a limit plate 11 is provided at the end of the liquid storage tube 1, and an anti-slip mechanism is connected to the outside of the liquid storage tube 1, and a guiding mechanism is connected between the sealing cover 7 and the pull-out rod 8.

In this embodiment, the anti-slip mechanism includes an airbag cushion 12 sleeved on the outside of the liquid storage tube 1, an inflation tube 13 is inserted into the interior of the airbag cushion 12, a push rod 14 is connected to the outer surface of the handle 9, and the end of the push rod 14 is connected to a push head 15 matching the inflation tube 13. An air inlet cavity 16 is provided inside the inflation tube 13. During the process of catheter liquid conduction, the handle 9 drives the push rod 14 to advance, and the push rod 14 drives the push head 15 to compress the volume of the air inlet cavity 16, and the airbag cushion 12 is inflated through the inflation tube 13. After the airbag cushion 12 is inflated, it is tightened to prevent the semen catheter from falling off during use.

In this embodiment, the push rod 14 passes through the interior of the limiting plate 11 , and the push rod 14 and the inflation tube 13 are on the same axis, which can ensure that the push rod 14 can be accurately inserted into the interior of the inflation tube 13 .

Second embodiment

Please refer to Figures 1, 2 and 5 in combination. Based on the multi-cavity semen catheter provided in the first embodiment of the present application, the second embodiment of the present application proposes another multi-cavity semen catheter. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

In this embodiment, the guiding mechanism includes a guiding frame 17 fixed to the outer surface of the sealing cover 7, and the outer surface of the pull-out rod 8 is sleeved with a connecting sleeve 18. The top of the connecting sleeve 18 is connected to a linkage block 19 that is inserted into the inside of the guiding frame 17, and the top of the linkage block 19 is connected to a guiding head 20. During the advancement of the pull-out rod 8, the guiding head 20 is driven to move together by the connecting sleeve 18 and the linkage block 19. The guiding head 20 cooperates with the guiding frame 17 to indicate the stroke of the catheter injection, which can facilitate the observation of the advancement distance of the catheter during injection and the selection of the appropriate injection volume.

In this embodiment, a slide groove for the linkage block 19 to slide is provided inside the guide frame 17, and the guide head 20 is clamped on the outside of the guide frame 17. The linkage block 19 slides in the slide groove to drive the guide head 20 to indicate at different positions.

In this embodiment, a sealing ring is provided at the connection between the liquid storage tube 1, the reserved section 2 and the liquid injection hose 3, and a guide groove is opened inside the reserved section 2. The sealing ring can increase the sealing performance of the connection between the liquid storage tube 1, the reserved section 2 and the liquid injection hose 3.

In this embodiment, an extrusion head 21 is provided at the end of the piston head 10. The outer diameter of the extrusion head 21 is adapted to the inner diameter of the injection hose 3. The piston head 10 drives the extrusion head 21 to pass through the injection hose 3, so that the semen remaining in the injection hose 3 can be completely discharged.

The working principle and use process of the utility model are as follows: the liquid storage tube 1, the reserved section 2 and the liquid injection hose 3 constitute the main part of the whole multi-chamber semen catheter. The liquid injection hose 3 is placed in the semen test tube, the handle 9 is pulled, and the pull rod 8 drives the piston head 10 to pull back, and the semen enters the liquid storage chamber 4 through the liquid injection chamber 6 and the reserved chamber 5. When the semen needs to be discharged, the handle 9 is pushed, and the pull rod 8 drives the piston head 10 to advance, and the piston head 10 compresses the liquid storage chamber 4, and the semen is discharged through the reserved chamber 5 and the liquid injection chamber 6. In the process of guiding the catheter, the handle 9 drives the propulsion rod 14 to advance, and the propulsion rod 14 drives the propulsion head 15 compresses the volume of the air chamber 16, and inflates the airbag cushion 12 through the inflation catheter 13. After the airbag cushion 12 is inflated, it is tightened to prevent the semen catheter from falling off during use. During the advancement of the pulling rod 8, the connecting sleeve 18 and the linkage block 19 drive the guide head 20 to move together. The guide head 20 cooperates with the guide frame 17 to indicate the stroke of the catheter injection, which can facilitate the observation of the advancement distance of the catheter during injection and the selection of the appropriate injection amount. The piston head 10 drives the extrusion head 21 to pass through the injection hose 3, and the semen remaining in the injection hose 3 can be completely discharged.

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

Claims (7)

1. The utility model provides a multicavity semen pipe, its characterized in that, including depositing liquid pipe (1), reserve section (2) and annotating liquid hose (3), the one end of reserving section (2) links to each other with depositing liquid pipe (1), and the other end of reserving section (2) links to each other with annotating liquid hose (3), deposit liquid chamber (4) have been seted up to the inside of depositing liquid pipe (1), reserve chamber (5) have been seted up to the inside of reserving section (2), annotate liquid chamber (6) have been seted up to the inside of annotating liquid hose (3), the end position card of depositing liquid pipe (1) is equipped with sealed lid (7), the inside through connection of sealed lid (7) has pull rod (8), the one end fixedly connected with handle (9) of pull rod (8), and the other end of pull rod (8) is located the internal connection of depositing liquid pipe (1) and has piston head (10), the tip cover of depositing liquid pipe (1) has limiting plate (11), and the outside of depositing liquid pipe (1) is connected with anti-disengaging mechanism, be connected with guide mechanism between pull rod (7) and the pull rod (8).

2. A multi-cavity semen catheter according to claim 1, wherein the anti-disengaging mechanism comprises an air bag pad (12) sleeved outside the liquid storage tube (1), an inflatable catheter (13) is inserted into the air bag pad (12), a pushing rod (14) is connected to the outer surface of the handle (9), a pushing head (15) matched with the inflatable catheter (13) is connected to the end of the pushing rod (14), and an air inlet cavity (16) is formed in the inflatable catheter (13).

3. A multi-lumen semen catheter according to claim 2, wherein the pushing rod (14) penetrates the inside of the limiting plate (11), and the pushing rod (14) and the inflation catheter (13) are on the same axis.

4. A multi-cavity semen catheter according to claim 1, wherein the guiding mechanism comprises a guiding frame (17) fixed on the outer surface of the sealing cover (7), an adapter sleeve (18) is sleeved on the outer surface of the drawing rod (8), a linkage block (19) clamped into the guiding frame (17) is connected to the top of the adapter sleeve (18), and a guiding head (20) is connected to the top of the linkage block (19).

5. The multi-cavity semen catheter according to claim 4, wherein the guiding frame (17) is internally provided with a sliding groove for sliding the linkage block (19), and the guiding head (20) is clamped on the outer side of the guiding frame (17).

6. The multi-cavity semen catheter according to claim 1, wherein a sealing ring is arranged at the joint of the liquid storage tube (1), the reserved section (2) and the liquid injection hose (3), and a diversion trench is formed in the reserved section (2).

7. A multi-lumen semen catheter according to claim 1, wherein the tip position of the piston head (10) is provided with an extrusion head (21), the outer diameter of the extrusion head (21) being adapted to the inner diameter of the infusion hose (3).