CN213098221U

CN213098221U - Double-cavity ovum taking needle

Info

Publication number: CN213098221U
Application number: CN202021245611.XU
Authority: CN
Inventors: 徐芳
Original assignee: Wenzhou Peoples Hospital
Current assignee: Wenzhou Peoples Hospital
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-05-04
Anticipated expiration: 2030-06-30

Abstract

The utility model provides a double-cavity ovum taking needle, which comprises a needle tube, a needle seat, a suction tube, a flushing tube, a test tube plug, an air inlet tube, a sacculus, an air inlet valve and a locking mechanism, the locking mechanism comprises a pressing component and a clamping component, the top surface of the test tube plug is provided with a mounting groove for mounting the pressing component, the outer circumferential wall of the test tube plug is provided with an installation opening communicated with the bottom end of the installation groove, the clamping component comprises a clamping plate positioned in the installation opening, a movable rod connected with the clamping plate and a first spring sleeved on the movable rod, first blocking blocks are arranged on the upper side and the lower side of the movable rod in the mounting opening, second blocking blocks are arranged on the upper side and the lower side of the movable rod at the port of the mounting opening facing the mounting groove, the movable rod is sleeved with a baffle between the first blocking block and the second blocking block, and the first spring is located between the first blocking block and the baffle. The utility model discloses a test tube stopper and test tube joint strength are high and the reliability is high.

Description

Double-cavity ovum taking needle

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to double-chamber ovum needle.

Background

At present, the number of infertility patients is increasing due to the accelerated work pace, the continuous enhancement of the work competition pressure, and the comprehensive influence of other factors such as environmental pollution. In clinical work, the implementation of conception by using in vitro fertilization-embryo transfer becomes an effective medical means, and the current universal method adopts an ovum taking needle to obtain the ovum under the guidance of vaginal B-ultrasound, so that the method is simple, convenient and safe, can accurately suck each follicle, and greatly improves the ovum taking efficiency. The ovum-taking needle is mainly divided into two types, namely a double-cavity ovum-taking needle and a single-cavity ovum-taking needle. The former has the advantage over the latter that the follicular fluid can be aspirated and the follicle can be repeatedly washed, increasing the rate of ova aspiration.

The existing Chinese patent has the patent numbers: CN201420548167.7, patent name: the patent document of 'double-cavity ovum taking needle with semi-automatic follicle flushing function' discloses a double-cavity ovum taking needle with semi-automatic follicle flushing function, which is characterized in that: the device consists of a double-cavity ovum taking needle tube, a needle seat, an aspiration tube, a flushing tube, a test tube plug, an air inlet tube, a balloon and an air inlet valve, when the double-cavity ovum taking needle is used for taking ovum, the aspiration tube test tube plug plugs a preheated empty test tube (collecting follicular fluid) on a constant temperature test tube rack and is connected with a negative pressure aspirator. The follicle flushing fluid test tube on the constant-temperature test tube rack is plugged by the flushing tube test tube plug. After a doctor sucks one follicle, a nurse only needs to press the saccule and pressurize the follicle flushing fluid to enable the follicle flushing fluid to enter the flushing tube, the follicle cavity can be flushed and flushed repeatedly and continuously, the operation is simple and convenient, and the repeated operation of a series of actions such as tube taking, liquid drawing, bolus injection and the like in the current clinical work is replaced; and meanwhile, the constant temperature of the follicle flushing fluid is ensured. In addition, after the flushing fluid in one test tube is used up, the operation is continued only by replacing the test tube plug with another test tube filled with the follicle flushing fluid, but the operation is simple, but the double-cavity ovum pick-up needle easily causes the test tube plug to be separated from the tube opening of the test tube due to the air pressure generated when a nurse presses the saccule, increases the danger of a patient, is easy to cause medical accidents, and needs to improve the connection strength between the test tube plug and the test tube.

SUMMERY OF THE UTILITY MODEL

Based on the above problem, the utility model aims to provide a double-chamber ovum-taking needle which can solve the technical problem.

Aiming at the problems, the following technical scheme is provided: the utility model provides a double-chamber ovum needle, includes needle tubing, needle file, attracts pipe, flushing pipe, test tube stopper, intake pipe, sacculus and admission valve, still includes locking mechanical system, locking mechanical system includes pressing subassembly and block subassembly, be equipped with the mounting groove that is used for installing the pressing subassembly on the top surface of test tube stopper, set up the installing port that is linked together with the mounting groove bottom on the outer periphery wall of test tube stopper, the block subassembly is including being located the intraoral block board of installing, the movable rod that links to each other with the block board and the first spring of cover on the movable rod, the upper and lower both sides that are located the movable rod in the installing port all are equipped with the first piece that blocks, the upper and lower both sides that the port department that the installing port is located the movable rod towards the mounting groove all are equipped with the second and block the piece, it is equipped with the baffle to lie in the first piece that blocks between piece and the second block piece on the, the pressing component can drive the clamping component to reciprocate relative to the opening direction of the mounting hole, so that the clamping plate can be abutted against and separated from the inner wall of the test tube.

In the structure, the suction tube and the flushing tube are communicated with different test tubes through the test tube plugs, the air inlet tube is communicated with the test tube communicated with the flushing tube, and the balloon is communicated with the air inlet tube. After being fixed in test tube mouth of pipe department with the test tube stopper, through pressing down the subassembly for the movable rod drives the block board and towards the test tube inner wall displacement, until supporting on pressing on the test tube inner wall, drives the baffle displacement in the time of the movable rod displacement, and the baffle makes first spring be compression state with the first cooperation of blockking that blocks, can improve the joint strength of test tube stopper and test tube through the pressure that supports that the block board produced the test tube inner wall, thereby has improved the stability of test tube stopper, has improved the utility model discloses a security and reliability. When the test tube needs to be changed, through pressing down the subassembly once more, the baffle produces the displacement through the elastic force of first spring, and then drives movable rod and block board and resets to make block board and test tube inner wall phase separation, the test tube stopper of being convenient for takes out from the test tube mouth of pipe, has improved the utility model discloses a convenience and reliability. Stop the piece through setting up the second and can carry on spacingly to the baffle to improve the stability of baffle, improved the utility model discloses a reliability.

The utility model is further arranged in that the pressing component comprises a driving rod for driving the displacement of the clamping plate, a guide sleeve which is sleeved on the driving rod and is connected with the port of the mounting groove in a screwed mode, and a push rod for controlling the displacement of the driving rod, a plurality of guide blocks which are arranged in a circumferential mode are arranged on the inner wall of the guide sleeve, a guide groove is formed between two adjacent guide blocks, a guide surface which inclines downwards relative to the circumferential direction of the guide sleeve is arranged on the end surface of the guide block facing to the driving rod, a stop block is arranged on the lowest side of the guide surface on the end surface of the guide block, a slide block matched with the guide groove is arranged on the outer wall of the top end of the driving rod, an inclined plane matched with the guide surface is arranged on the end surface of the slide block facing to one side of the push rod, a top block matched with the guide groove is arranged at the bottom end of the push rod, the mounting groove includes in proper order from last to down the installation cavity that is used for installing the uide bushing, be used for carrying out spacing chamber and be used for the actuating lever to carry out axial displacement's activity chamber, lie in spacing intracavity on the actuating lever and be equipped with the fender ring rather than the looks adaptation, lie in on the actuating lever and keep off the ring below and be equipped with the second spring that offsets with port under the spacing chamber, the port and the activity chamber of installation mouth are linked together, movable rod one end offsets with the actuating lever.

In the structure, by pressing the push rod, the sharp corner at the bottom end of the ejector block is matched with the inclined surface of the slide block to drive the drive rod to displace, the inclined surface on the slide block is matched with the guide surface to enable the drive rod to rotate, the stop block is used for stopping the drive rod to prevent the drive rod from rotating continuously, and the slide block is abutted against the guide surface of the guide block; when the driving rod moves, the second spring is compressed through the matching of the stop ring and the port of the limiting cavity, the driving rod abuts against the movable rod, the movable rod moves to the clamping plate to abut against the inner wall of the test tube, the first spring is in a compressed state, the test tube plug and the test tube are fixed in an enhanced mode, and the inclined surface at the top of the sliding block abuts against the guide surface of the guide block to prevent the movable rod from moving upwards and resetting; the push rod is pressed once more, cooperate with ejecting groove through the kicking block, push away the actuating lever from the guide block, through the closed angle of kicking block bottom and the inclined plane cooperation at slider top, make the actuating lever rotate to the slider and correspond with the guide groove, elastic force through the second spring, the control actuating lever carries out the displacement, the slider slides in the guide groove, realize restoring to the throne of actuating lever, thereby the restriction has been removed to the movable rod, the movable rod resets through the elastic force of first spring, block board and test tube inner wall phase separation, and then be convenient for take off the test tube stopper from the test tube mouth of pipe. Ejecting groove can be convenient for ejecting the kicking block ejecting from the spigot surface through setting up, thereby improved the utility model discloses a convenience. The displacement of the sliding block can be facilitated by the guide groove, the stability of the pressing assembly during pressing is improved, the compactness of the structure of the pressing assembly can be improved, and therefore the firmness and the reliability of the locking mechanism are improved.

The utility model discloses further set up to, the actuating lever bottom is the round platform form, the inclined plane with the actuating lever bottom end adaptation is seted up to the one end that the movable rod offseted with the actuating lever.

Adopt above-mentioned structure, can be convenient for the actuating lever bottom support in the activity intracavity with movable rod end, and can be convenient for the actuating lever drive movable rod displacement to improved locking mechanical system's stability, improved the utility model discloses a reliability.

The utility model discloses further set up as, the transversal square of personally submitting of baffle.

Adopt above-mentioned structure, can prevent that the movable rod from producing to rotate and leading to the unable downward displacement of actuating lever and drive the movable rod and carry out the displacement, thereby improved the utility model discloses a reliability.

The utility model discloses further set up to, the cross-section of block board is fan-shaped, the relative actuating lever circumference of block subassembly is provided with four groups.

Adopt above-mentioned structure, can improve the area of contact of block board and test tube inner wall to further improved the joint strength between test tube stopper and the test tube, improved the utility model discloses a security and reliability.

The utility model discloses further set up to, still include the seal cover, it is equipped with the gomphosis groove to lie in the installing port top on the outer periphery wall of test tube stopper, the upper end of seal cover inlays and locates the gomphosis inslot, and the outer wall of test tube is located to lower pot head, the lower extreme of seal cover can upwards the scroll.

In the structure, through locating the test tube outer wall with the end cover under the seal cover, improved the leakproofness between test tube stopper and the test tube, when avoiding the user to press the sacculus, the in vitro leaks gas, and can further improve the joint strength between test tube stopper and the test tube, thereby can improve the utility model discloses a reliability. When the test tube needs to be changed, only need upwards the scroll with the seal cover lower extreme, can be convenient for take off the test tube stopper from the test tube to improved the utility model discloses a convenience. Can improve the joint strength between seal cover and the test tube stopper through setting up the gomphosis groove to improved the utility model discloses a stability and reliability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a structure at a in fig. 1.

Fig. 3 is a schematic structural view of the locking mechanism of the present invention not in the locked state.

Fig. 4 is a schematic structural diagram of the middle engaging assembly of the present invention.

Fig. 5 is a schematic cross-sectional structure diagram of the pilot tube plug of the present invention.

Fig. 6 is a schematic structural view of the middle guide sleeve of the present invention.

Fig. 7 is a schematic structural view of the driving rod of the present invention.

Fig. 8 is a schematic structural view of the middle push rod of the present invention.

The reference numbers in the figures mean: 1-a needle tube; 2-a needle seat; 3-a suction tube; 4-a flushing pipe; 5-a test tube plug; 6, an air inlet pipe; 7-balloon; 8-a locking mechanism; 81-a pressing assembly; 82-a snap-fit assembly; 51-a mounting groove; 52-mounting port; 821-clamping plate; 822-a movable rod; 823-first spring; 521-a first stop block; 522-a second stop; 8221-a baffle plate; 811-a drive rod; 812-a guide sleeve; 813-push rod; 8121-a guide block; 8122-guide groove; 8123-guide surface; 8124-a stop; 8111-a slider; 8131-top piece; 8125-ejecting slot; 511-installation cavity; 512-limit cavity; 513-an active chamber; 8112-stop ring; 8113-a second spring; 9-sealing sleeve; 53-a fitting groove.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 8, a double-lumen ovum taking needle comprises a needle tube 1, a needle seat 2, a suction tube 3, a flushing tube 4, a test tube stopper 5, an air inlet tube 6, a balloon 7, an air inlet valve, and a locking mechanism 8, wherein the locking mechanism 8 comprises a pressing component 81 and a clamping component 82, a mounting groove 51 for mounting the pressing component 81 is arranged on the top surface of the test tube stopper 5, a mounting opening 52 communicated with the bottom end of the mounting groove 51 is arranged on the outer circumferential wall of the test tube stopper 5, the clamping component 82 comprises a clamping plate 821 positioned in the mounting opening 52, a movable rod connected with the clamping plate 821 and a first spring sleeved on the movable rod, first blocking blocks 521 are arranged on the upper side and the lower side of the movable rod in the mounting opening 52, second blocking blocks 522 are arranged on the upper side and the lower side of the movable rod towards the port of the mounting groove 51, a baffle plate is sleeved on the movable rod between the first blocking blocks 521 and the second blocking blocks 522, the first spring is located between the first blocking block 521 and the blocking plate, and the pressing component 81 can drive the engaging component 82 to reciprocate relative to the opening direction of the mounting hole 52, so that the engaging plate 821 can press against and separate the inner wall of the test tube.

In the structure, the suction tube 3 and the flushing tube 4 are communicated with different test tubes through the test tube plug 5, the air inlet tube 6 is communicated with the test tube communicated with the flushing tube 4, and the saccule 7 is communicated with the air inlet tube 6. After being fixed in test tube stopper 5 test tube mouth of pipe department, through pressing down subassembly 81 for the movable rod drives block plate 821 towards the test tube inner wall displacement, until pressing on the test tube inner wall, drive the baffle displacement in the time of the movable rod displacement, the baffle makes first spring be compression state with the first cooperation of stopping block 521, the pressure of supporting through block plate 821 to the test tube inner wall production can improve the joint strength of test tube stopper 5 and test tube, thereby improved test tube stopper 5's stability, improved the utility model discloses a security and reliability. When the test tube needs to be changed, through pressing down subassembly 81 once more, the baffle produces the displacement through the elastic force of first spring, and then drives movable rod and block plate 821 and resets to make block plate 821 and the test tube inner wall phase separation, the test tube stopper 5 of being convenient for takes out from the test tube mouth of pipe, has improved the utility model discloses a convenience and reliability. Stop block 522 through setting up the second and can carry on spacingly to the baffle to improve the stability of baffle, improved the utility model discloses a reliability.

In this embodiment, the pressing component 81 includes a driving rod 822 for driving the engaging plate 821 to move, a guide sleeve 812 sleeved on the driving rod 822 and screwed with the port of the mounting groove 51, and a push rod 813 for controlling the movement of the driving rod 822, wherein the inner wall of the guide sleeve 812 is provided with a plurality of guide blocks 8121 arranged circumferentially, a guide groove 8122 is formed between two adjacent guide blocks 8121, the end surface of the guide block 8121 facing the driving rod 822 is provided with a guide surface 8123 inclined downward relative to the circumferential direction of the guide sleeve 812, the end surface of the guide block 8121 is provided with a stopper 8124 at the lowest side of the guide surface 8123, the outer wall of the top end of the driving rod 822 is provided with a slider 8111 matched with the guide groove 8122, the end surface of the slider 8111 facing one side of the push rod 813 is provided with an inclined surface matched with the guide surface 8123, the bottom end of the push rod 813 is provided with a top block 8131 matched with the guide groove 81, guide block 8121 is equipped with the ejecting groove 8125 with kicking block 8131 matched with towards one side of uide bushing 812 central axis direction, mounting groove 51 is including in proper order from last installation cavity 511 that is used for installing uide bushing 812, the activity chamber 513 that is used for carrying on spacing chamber 512 and is used for actuating lever 822 to carry out axial displacement to the actuating lever 822 that sets up down, lie in on the actuating lever 822 and be equipped with the fender ring 8112 rather than the looks adaptation in spacing chamber 512, lie in on the actuating lever 822 and keep off ring 8112 below and be equipped with the second spring 8113 that offsets with the port under spacing chamber 512, the port and the activity chamber 513 of installing port 52 are linked together, movable rod one end offsets with actuating lever 822.

In the structure, by pressing the push rod 813, a sharp corner at the bottom end of the top block 8131 is matched with an inclined surface of the sliding block 8111 to drive the driving rod 822 to displace, the inclined surface on the sliding block 8111 is matched with the guide surface 8123, so that the driving rod 822 rotates, the stopper 8124 stops to prevent the driving rod 822 from continuing to rotate, and the sliding block 8111 abuts against the guide surface 8123 of the guide block 8121; when the driving rod 822 moves, the second spring 8113 is compressed through the matching of the stop ring 8112 and the port of the limiting cavity 512, the driving rod 822 abuts against the movable rod, the movable rod moves to the clamping plate 821 to abut against the inner wall of the test tube, the first spring is in a compressed state, the test tube plug 5 and the test tube are strengthened and fixed, and the movable rod is prevented from moving upwards and resetting through the abutting of the inclined plane at the top of the sliding block 8111 and the guide surface 8123 of the guide block 8121; the push rod 813 is pressed again, the ejecting block 8131 is matched with the ejecting groove 8125, the driving rod 822 is pushed away from the guide block 8121, the sharp corner at the bottom of the ejecting block 8131 is matched with the inclined plane at the top of the sliding block 8111, the driving rod 822 is rotated to the position where the sliding block 8111 corresponds to the guide groove 8122, the driving rod 822 is controlled to move through the elastic force of the second spring 8113, the sliding block 8111 slides into the guide groove 8122, the reset of the driving rod 822 is achieved, the limit of the movable rod is removed, the movable rod resets through the elastic force of the first spring, the clamping plate 821 is separated from the inner wall of the test tube, and the test tube plug 5 is conveniently taken down from the opening of the test tube. Ejecting slot 8125 can be convenient for ejecting 8131 with slider 8111 from spigot surface 8123 through setting up, thereby improved the utility model discloses a convenience. The sliding block 8111 can be conveniently displaced by arranging the guide groove 8122, the stability of the pressing component 81 during pressing is improved, the structure compactness of the pressing component 81 can be improved, and the firmness and the reliability of the locking mechanism 8 are improved.

In this embodiment, the bottom end of the driving rod 822 is a circular truncated cone, and an inclined surface adapted to the bottom end of the driving rod 822 is formed at one end of the movable rod abutting against the driving rod 822.

Adopt above-mentioned structure, can be convenient for the actuating lever 822 bottom support in activity chamber 513 with movable rod end, and can be convenient for actuating lever 822 drive movable rod displacement to improved locking mechanical system 8's stability, improved the utility model discloses a reliability.

In this embodiment, the cross section of the baffle is square.

Adopt above-mentioned structure, can prevent that the movable rod from producing to rotate and leading to actuating lever 822 can't the displacement downwards and drive the movable rod and carry out the displacement, thereby improved the utility model discloses a reliability.

In this embodiment, the engaging plate 821 has a fan-shaped cross section, and four sets of engaging elements 82 are circumferentially disposed relative to the driving rod 822.

Adopt above-mentioned structure, can improve the area of contact of block board 821 and test tube inner wall to further improve the joint strength between test tube stopper 5 and the test tube, improved the utility model discloses a security and reliability.

In this embodiment, the test tube plug further comprises a sealing sleeve 9, a fitting groove 53 is formed in the outer circumferential wall of the test tube plug 5 above the mounting opening 52, the upper end of the sealing sleeve 9 is fitted in the fitting groove 53, the lower end of the sealing sleeve 9 is sleeved on the outer wall of the test tube, and the lower end of the sealing sleeve 9 can be turned upwards.

In the structure, through locating the test tube outer wall with the 9 lower pot heads of seal cover, improved the leakproofness between test tube stopper 5 and the test tube, when avoiding the user to press sacculus 7, the in vitro gas leakage, and can further improve the joint strength between test tube stopper 5 and the test tube, thereby can improve the utility model discloses a reliability. When the test tube needs to be changed, only need upwards the scroll with 9 lower extremes of seal cover, can be convenient for take off test tube plug 5 from the test tube to improved the utility model discloses a convenience. Can improve the joint strength between seal cover 9 and test tube stopper 5 through setting up gomphosis groove 53, thereby improved the utility model discloses a stability and reliability.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a double-chamber ovum needle, includes needle tubing, needle file, attracts pipe, flushing tube, test tube stopper, intake pipe, sacculus and admission valve, its characterized in that: the locking mechanism comprises a pressing component and a clamping component, the top surface of the test tube plug is provided with a mounting groove for mounting the pressing component, the outer circumferential wall of the test tube plug is provided with an installation opening communicated with the bottom end of the installation groove, the clamping component comprises a clamping plate positioned in the installation opening, a movable rod connected with the clamping plate and a first spring sleeved on the movable rod, first blocking blocks are arranged on the upper side and the lower side of the movable rod in the mounting opening, second blocking blocks are arranged on the upper side and the lower side of the movable rod at the port of the mounting opening facing the mounting groove, a baffle is sleeved on the movable rod between the first stop block and the second stop block, the first spring is positioned between the first stop block and the baffle, the pressing component can drive the clamping component to reciprocate relative to the opening direction of the mounting hole, so that the clamping plate can be abutted against and separated from the inner wall of the test tube.

2. A double-lumen ovum pick-up needle as recited in claim 1, wherein: the pressing component comprises a driving rod for driving the displacement of the clamping plate, a guide sleeve which is sleeved on the driving rod and is in threaded connection with a port of the mounting groove, and a push rod for controlling the displacement of the driving rod, wherein a plurality of guide blocks which are arranged in the circumferential direction are arranged on the inner wall of the guide sleeve, a guide groove is formed between the two adjacent guide blocks, a guide surface which inclines downwards relative to the circumferential direction of the guide sleeve is arranged on the end surface of the guide block facing the driving rod, a stop block is arranged at the lowest side of the guide surface on the end surface of the guide block, a slide block matched with the guide groove is arranged on the outer wall of the top end of the driving rod, an inclined surface matched with the guide surface is arranged on the end surface of the slide block facing one side of the push rod, a top block matched with the guide groove is arranged at the bottom end of the push rod, the bottom, the mounting groove includes in proper order from last to down the installation cavity that is used for installing the uide bushing, be used for carrying out spacing chamber and be used for the actuating lever to carry out axial displacement's activity chamber, lie in spacing intracavity on the actuating lever and be equipped with the fender ring rather than the looks adaptation, lie in on the actuating lever and keep off the ring below and be equipped with the second spring that offsets with port under the spacing chamber, the port and the activity chamber of installation mouth are linked together, movable rod one end offsets with the actuating lever.

3. A double-lumen ovum pick-up needle as claimed in claim 2, wherein: the bottom end of the driving rod is in a round table shape, and one end of the movable rod, which is abutted against the driving rod, is provided with an inclined plane matched with the bottom end of the driving rod.

4. A double-lumen ovum pick-up needle as claimed in claim 3, wherein: the cross section of the baffle is square.

5. A double-lumen ovum pick-up needle as claimed in claim 3, wherein: the section of the clamping plate is fan-shaped, and four groups of clamping assemblies are arranged on the periphery of the clamping assembly relative to the driving rod.

6. A double-lumen ovum pick-up needle as claimed in claim 2, wherein: the test tube plug is characterized by further comprising a sealing sleeve, an embedded groove is formed in the outer circumferential wall of the test tube plug and located above the mounting port, the upper end of the sealing sleeve is embedded in the embedded groove, the lower end of the sealing sleeve is sleeved on the outer wall of the test tube, and the lower end of the sealing sleeve can be turned upwards outwards.