Device for improving propagation rate of meat donkeys through frozen artificial insemination and operation method thereof

文档序号:1206611 发布日期:2020-09-04 浏览:12次 中文

阅读说明:本技术 一种冷冻人工授精提高肉驴繁殖率的装置及其操作方法 (Device for improving propagation rate of meat donkeys through frozen artificial insemination and operation method thereof ) 是由 庄桂玉 *** 张德敏 张淑二 陶安勇 王本廷 于 2020-05-29 设计创作,主要内容包括:本发明公开了一种冷冻人工授精提高肉驴繁殖率的装置,本发明设置的第一放置架、第一盖板、第二放置架、第二盖板和盛放装置,对于冷冻管能够将其进行竖直放置,通过设置的限位固定结构,一方面对于冷冻管能够进行进一步的位置固定,提高冷冻管在冷冻工作时的稳定性,另一方面通过其中设置的限位筒、第二挤压弹簧、挤压片,对于冷冻管的管口密封位置具有一个挤压辅助密封作用,通过本发明冷冻人工授精提高肉驴繁殖率的操作方法,能够保证其不会因为热胀冷缩导致密封降低,进而保证冷冻工作的正常进行,保证冷冻工作质量,能够保证冷冻精液的性能,保证授精成功率。(The invention discloses a device for improving the propagation rate of donkey meat by freezing artificial insemination, which is provided with a first placing frame, a first cover plate, a second placing frame, a second cover plate and a containing device, the freezing pipe can be vertically placed, and the limiting and fixing structure can further fix the position of the freezing pipe to improve the stability of the freezing pipe during freezing operation, and the limiting cylinder, the second extrusion spring and the extrusion sheet are arranged in the freezing pipe, the operation method for improving the propagation rate of the donkey by the frozen artificial insemination has the advantages that the sealing reduction caused by expansion with heat and contraction with cold can be avoided, thereby ensuring the normal operation of the freezing work, the quality of the freezing work, the performance of the frozen semen and the success rate of insemination.)

1. A device for improving the propagation rate of donkey meat through frozen artificial insemination is characterized in that: comprises a freezing cabinet body (1), a first placing rack (2), a first cover plate (3), a second placing rack (4), a second cover plate (5), a placing device (9) and a limiting and fixing structure (10);

the first placing frame (2) is rotationally connected with the first cover plate (3) through a pin shaft (8), the first placing frame (2) is rotationally connected with the second cover plate (5) through the pin shaft (8), the second cover plate (5) is also rotationally connected with the second placing frame (4) through the pin shaft (8), and semicircular threaded columns (6) are symmetrically formed at the joint of the first placing frame (2) and the first cover plate (3), the joint of the first placing frame (2) and the second cover plate (5) and the joint of the second cover plate (5) and the second placing frame (4) in an integrated manner; the two semicircular threaded columns (6) are combined into a threaded column, and the two semicircular threaded columns (6) are fixedly connected through a connecting nut (7);

the first placing frame (2) and the second placing frame (4) are equidistantly provided with a containing device (9), and the first cover plate (3) and the second cover plate (5) are equidistantly provided with a limiting and fixing structure (10).

2. The device for improving the propagation rate of donkey meat by frozen artificial insemination according to claim 1, characterized in that: the containing device (9) comprises a containing round body (901), a containing round groove (902), a first extrusion block (903), a second extrusion block (904), a first reset spring (905), an arc elastic block (906), an extrusion lantern ring (907), an arc extrusion chute (908), a convex block (909), a concave movable block (910), a first extrusion spring (911), a fixing ring (912) and a fixed square groove (913), wherein the containing round body (901) is integrally formed and equidistantly arranged on a first placing frame (2) and a second placing frame (4), the containing round body (901) is internally provided with the containing round groove (902), the bottom end surface of the containing round groove (902) is arranged in an inverted cone shape, the containing round body (901) is symmetrically inserted with the first extrusion block (903), one end of the first extrusion block (903) is integrally formed and equidistantly provided with the second extrusion block (904), the device is characterized in that a first reset spring (905) is connected and arranged at the same end of the first extrusion block (903) as the second extrusion block (904), an arc-shaped elastic block (906) is arranged at the other end of the second extrusion block (904), an extrusion lantern ring (907) is sleeved and arranged on the outer side wall of the round body (901), arc-shaped extrusion chutes (908) are symmetrically arranged in the extrusion lantern ring (907), a bump (909) is arranged on one side of the extrusion lantern ring (907), a concave movable block (910) is movably connected and arranged in the bump (909), a first extrusion spring (911) is connected and arranged on one side of the concave movable block (910), a fixing ring (912) is arranged on the outer side wall of the round body (901), and a fixing square groove (913) is equidistantly arranged on one side of the fixing ring (912).

3. The device for improving the propagation rate of donkey meat by frozen artificial insemination according to claim 1, characterized in that: the limiting fixing structure (10) comprises a fixing block (1001), an inserting column (1002), an annular clamping groove (1003), a first inserting block (1004), a second inserting block (1005), a second return spring (1006), a limiting cylinder (1007), a second extrusion spring (1008) and an extrusion sheet (1009), the fixing block (1001) is provided with inserting columns (1002) in an inserting way, the outer side walls of the inserting columns (1002) are provided with annular clamping grooves (1003) at equal intervals, a first insertion block (1004) and a second insertion block (1005) are inserted into the fixing block (1001), the second insert block (1005) is provided with a second return spring (1006) at the same end with the first insert block (1004), one end of the inserting column (1002) is provided with a limiting cylinder (1007), a second extrusion spring (1008) is connected and arranged in the limiting cylinder (1007), and the other end of the second extrusion spring (1008) is connected and provided with an extrusion sheet (1009).

4. The device for improving the propagation rate of donkey meat by frozen artificial insemination according to claim 1, characterized in that: the limiting and fixing structures (10) are corresponding to the containing devices (9) in arrangement position and are the same in arrangement group number.

5. The device for improving the propagation rate of donkey meat by frozen artificial insemination according to claim 2, characterized in that: the arc-shaped extrusion chutes (908) correspond to the first extrusion blocks (903) in arrangement position and are arranged in the same number.

6. The device for improving propagation rate of donkey meat by using frozen artificial insemination according to claim 3, wherein: the outer diameter of the limiting cylinder (1007) is equal to the diameter of the circular placing groove (902), the setting positions are corresponding, and the setting groups are the same.

7. An apparatus for enhancing the reproduction rate of donkey meat by frozen artificial insemination according to any one of claims 1 to 6, wherein the operation method of the apparatus comprises the steps of:

s1; firstly, a freezing pipe containing semen is placed in a placing circular groove (902) in a containing device (9) and is vertically placed;

s2: then, the extrusion lantern ring (907) on the containing round body (901) is rotated, the arc-shaped extrusion chute (908) is driven to extrude the first extrusion block (903) along with the rotation of the extrusion lantern ring (907) until the arc-shaped elastic block (906) is attached to the side wall of the freezing pipe;

s3: when the lantern ring (907) is rotated and extruded in the operation process of the step S2, the concave movable block (910) is pressed, when the arc-shaped elastic block (906) is attached to the side wall of the freezing pipe, the concave movable block (910) is loosened, and then the concave movable block (910) is clamped in the fixed square groove (913) under the action of the first extrusion spring (911), so that the freezing pipe is preliminarily clamped;

s4: then, the limiting cylinder (1007) is driven to be inserted and sleeved at the upper end of the freezing pipe in a plugging manner by pressing the inserting column (1002), and a good sealing auxiliary effect can be achieved on the sealing position of the upper end of the freezing pipe by the arranged extruding sheet (1009) and the second extruding spring (1008), so that the freezing pipe is kept at a vertical position, the freezing work is facilitated, and the freezing work quality is ensured;

s5: in the working process of the step S4, when the inserting column (1002) is pressed, the second inserting block (1005) is pulled, so that the first inserting block (1004) is separated from the annular clamping groove (1003), and finally, the second inserting block (1005) is loosened after the limiting work of the freezing pipe is completed, and the position fixing of the inserting column (1002) is realized.

Technical Field

The invention relates to the technical field of biological propagation equipment, in particular to a device for improving propagation rate of meat donkeys through frozen artificial insemination and an operation method thereof.

Background

Artificial Insemination (AI) refers to an Assisted Reproduction Technology (ART) for delivering sperms to female genital tracts in a non-sexual intercourse manner to achieve the purpose of enabling women to be pregnant, and currently, artificial insemination technologies are increasingly applied to breeding industries, such as the donkey industry, and can improve the breeding rate of donkeys by adopting the artificial insemination technology, so that the insemination success rate is improved, the breeding survival rate of donkeys is increased, and economic benefits are brought to people; any link is not well mastered, and the consequences of mismatch and infertility can be caused. Therefore, the heat identification of the donkey needs to be as accurate as possible to realize the timely insemination, and the collected semen needs to be frozen and stored.

In this in-process is usually to place the semen of gathering in the cryovial, place freezing in the freezer chest with sealing plug sealing process, to the cryovial to the difficult in order to place of cryovial in the freezer chest, need place its perpendicular or slope and place, and in freezing environment, the cryovial enters into under the low temperature environment from the normal atmospheric temperature, can receive expend with heat and contract with cold should, cause the influence to the sealed of cryovial, moreover after freezing work is accomplished, need take out the cryovial, present all takes out one of cryovial, in this process, the activity of the semen in the cryovial that does not in time take out can receive the influence, and then cause the influence to its work of inseminating, finally influence its reproduction survival rate.

Disclosure of Invention

The invention aims to provide a device for improving the propagation rate of donkey meat by using frozen artificial insemination and an operation method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a device for improving the propagation rate of donkey meat through frozen artificial insemination is characterized in that: the refrigerator comprises a refrigerator body, a first placing frame, a first cover plate, a second placing frame, a second cover plate, a placing device and a limiting and fixing structure;

the first placing frame is rotationally connected with the first cover plate through a pin shaft, the first placing frame is rotationally connected with the second cover plate through a pin shaft, the second cover plate is also rotationally connected with the second placing frame through a pin shaft, and semicircular threaded columns are symmetrically formed at the joint of the first placing frame and the first cover plate, the joint of the first placing frame and the second cover plate and the joint of the second cover plate and the second placing frame in an integrated manner; the two semicircular threaded columns are combined into a threaded column, and the two semicircular threaded columns are fixedly connected through a connecting nut;

the first placing frame and the second placing frame are equidistantly provided with containing devices, and the first cover plate and the second cover plate are equidistantly provided with limiting and fixing structures.

Preferably, the containing device comprises a containing round body, a containing round groove, a first extrusion block, a second extrusion block, a first reset spring, an arc-shaped elastic block, an extrusion lantern ring, an arc-shaped extrusion chute, a convex block, a concave movable block, a first extrusion spring, a fixing ring and a fixed square groove, wherein the containing round body is integrally formed and equidistantly arranged on the first containing frame and the second containing frame, the containing round body is internally provided with the containing round groove, the bottom end surface of the containing round groove is in an inverted cone shape, the containing round body is symmetrically inserted with the first extrusion blocks, one end of each first extrusion block is integrally formed and equidistantly provided with the second extrusion blocks, the first extrusion blocks are connected with the first reset spring at the same end as the second extrusion blocks, the other end of each second extrusion block is provided with the arc-shaped elastic block, the extrusion lantern ring is sleeved on the outer side wall of the containing round body, and the symmetry is provided with arc extrusion chute in the extrusion lantern ring, one side of the extrusion lantern ring is provided with the lug, swing joint is provided with concave type movable block in the lug, concave type movable block one side is connected and is provided with first extrusion spring, the lateral wall that holds the circle is provided with solid fixed ring, and solid fixed ring's one side equidistance is provided with fixed square groove.

Preferably, contain the fixed block among the spacing fixed knot structure, insert post, ring groove, first inserted block, second reset spring, spacing section of thick bamboo, second extrusion spring, stripper plate, it is provided with the post of inserting to insert in the fixed block, it is provided with ring groove to insert post lateral wall equidistance to insert to connect in the fixed block and be provided with first inserted block and second inserted block, the second inserted block is being connected with the same end with first inserted block and is provided with second reset spring, the one end of inserting the post is provided with spacing section of thick bamboo, connect in the spacing section of thick bamboo and be provided with second extrusion spring and the connection of second extrusion spring other end is provided with the stripper plate.

Preferably, the limiting and fixing structure corresponds to the arrangement position of the containing device and is the same as the arrangement number of the containing devices.

Preferably, the arc-shaped extrusion chutes correspond to the first extrusion blocks in arrangement position and are arranged in the same number of groups.

Preferably, the outer diameter of the limiting cylinder is equal to the diameter of the circular groove, the setting positions are corresponding, and the number of the sets is the same.

The operation method of the device comprises the following steps:

s1, firstly, placing the freezing pipe containing the semen in a placing circular groove in a containing device and vertically placing the freezing pipe;

s2: then, the extrusion lantern ring on the containing round body is rotated, and the arc extrusion chute is driven to extrude the first extrusion block along with the rotation of the extrusion lantern ring until the arc elastic block is attached to the side wall of the freezing pipe;

s3: when the lantern ring is extruded in the rotating mode in the operation process of the step S2, the concave movable block is pressed, when the arc-shaped elastic block is attached to the side wall of the freezing pipe, the concave movable block is loosened, and then the concave movable block is clamped in the fixed square groove under the action of the first extrusion spring, so that the freezing pipe is preliminarily clamped;

s4: then, the limiting cylinder is driven to be inserted and sleeved at the upper end of the freezing pipe by pressing the inserting column, and a good sealing auxiliary effect can be achieved on the sealing position of the upper end of the freezing pipe by the arranged extruding sheet and the second extruding spring, so that the freezing pipe is kept at a vertical position, the freezing work is facilitated, and the freezing work quality is ensured;

s5: in the working process of the step S4, the second inserting block is pulled while the inserting column is pressed, so that the first inserting block is separated from the annular clamping groove, and finally the second inserting block is loosened after the limiting work of the freezing pipe is finished, and the position fixing of the inserting column is realized.

Compared with the prior art, the invention has the beneficial effects that:

1. the first placing frame, the first cover plate, the second placing frame and the second cover plate are more convenient for placing the freezing pipe in the semen freezing process, and the freezing pipe can be integrally taken out once when the freezing operation is finished, so that the situation that the freezing pipe is not taken out timely is avoided, the performance of frozen semen can be further ensured, and the insemination success rate is ensured;

2. through the device that holds that sets up, in freezing the course of the work, can carry out vertical the placing with it to the cryovial, and place stably, the phenomenon of empting can not appear in freezing the course of the work, moreover, through the spacing fixed knot structure that sets up, can carry out further rigidity to the cryovial on the one hand, improve the stability of cryovial when freezing the work, on the other hand is through the spacing section of thick bamboo that wherein sets up, second extrusion spring, the stripper plate, sealed effect is assisted in having an extrusion to the mouth of pipe sealing position of cryovial, and then guarantee that it can not lead to sealed the reducing because of expend with heat and contract with cold, and then guarantee the normal clear of freezing work, guarantee freezing operating mass.

Drawings

FIG. 1 is a schematic view of a connection structure according to the present invention;

FIG. 2 is a right side schematic view of the first rack, the first cover plate, the second rack, and the second cover plate according to the present invention;

FIG. 3 is a right side schematic view of the first rack, the first cover plate, the second rack, and the second cover plate according to the present invention;

FIG. 4 is a top view of the connection between the containing device and the limiting fixing structure;

FIG. 5 is a bottom view of the containing device and the position limiting fixing structure of the present invention;

fig. 6 is a partial cross-sectional top view of the internal connection structure of the containing device of the present invention;

fig. 7 is a partial sectional bottom view of the internal connection structure of the containing device in accordance with the present invention.

In the figure: the freezer body 1, first rack 2, first apron 3, second rack 4, second apron 5, semicircle screw post 6, coupling nut 7, round pin axle 8, hold device 9, hold the circle 901, place circular slot 902, first extrusion piece 903, second extrusion piece 904, first reset spring 905, arc elastic block 906, extrusion lantern ring 907, arc extrusion chute 908, lug 909, concave movable block 910, first extrusion spring, solid fixed ring 912, fixed square groove 913, spacing fixed knot constructs 10, fixed block 1001, insert post 1002, ring channel 1003, first inserted block 1004, second inserted block 1005, second reset spring 1006, spacing section of thick bamboo 1007, second extrusion spring 1008, 1009 piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.

Referring to fig. 1 to 7, the present invention provides a technical solution: a device for improving the propagation rate of donkey meat through frozen artificial insemination is characterized in that: the refrigerator comprises a refrigerator body 1, a first placing frame 2, a first cover plate 3, a second placing frame 4, a second cover plate 5, a placing device 9 and a limiting and fixing structure 10;

the first placing frame 2 is rotationally connected with the first cover plate 3 through a pin shaft 8, the first placing frame 2 is rotationally connected with the second cover plate 5 through a pin shaft 8, the second cover plate 5 is also rotationally connected with the second placing frame 4 through a pin shaft 8, and semicircular threaded columns 6 are symmetrically formed at the joint of the first placing frame 2 and the first cover plate 3, the joint of the first placing frame 2 and the second cover plate 5 and the joint of the second cover plate 5 and the second placing frame 4 in an integrated mode; the two semicircular threaded columns 6 are combined into a threaded column, and the two semicircular threaded columns 6 are fixedly connected through a connecting nut 7;

the first placing frame 2 and the second placing frame 4 are equidistantly provided with a containing device 9, which comprises a containing round body 901, a containing round groove 902, a first extruding block 903, a second extruding block 904, a first reset spring 905, an arc elastic block 906, an extruding lantern ring 907, an arc extruding chute 908, a bump 909, a concave movable block 910, a first extruding spring 911, a fixing ring 912 and a fixed square groove 913, the containing round body 901 is integrally formed and equidistantly arranged on the first placing frame 2 and the second placing frame 4, the containing round body 901 is internally provided with the containing round groove 902, the bottom end surface of the containing round groove 902 is in an inverted cone shape, the containing round body 901 is symmetrically inserted with the first extruding blocks 903, one end of the first extruding blocks 903 is integrally formed and equidistantly provided with the second extruding blocks 904, the first extruding blocks 903 are connected with the first reset spring 905 at the same end as the second extruding blocks 904, the other end of the second extruding blocks 904 is provided with the arc elastic block 906, the extrusion lantern ring 907 is sleeved on the outer side wall of the circular body 901, arc-shaped extrusion chutes 908 are symmetrically arranged in the extrusion lantern ring 907, the arc-shaped extrusion chutes 908 correspond to the arrangement positions of the first extrusion blocks 903 and have the same number of groups, one side of the extrusion lantern ring 907 is provided with a bump 909, a concave movable block 910 is movably connected in the bump 909, one side of the concave movable block 910 is connected with a first extrusion spring 911, the outer side wall of the circular body 901 is provided with a fixing ring 912, one side of the fixing ring 912 is provided with a fixing square groove 913 at equal intervals, the first cover plate 3 and the second cover plate 5 are provided with a limiting and fixing structure 10 at equal intervals, the limiting and fixing structure 10 comprises a fixing block 1001, an insert column 1002, an annular clamping groove 1003, a first insert block 1004, a second insert block 1005, a second return spring 1006, a limiting cylinder 1007, a second extrusion spring 1008 and an extrusion sheet 1009, the insert column 1002, insert post 1002 lateral wall equidistance and be provided with ring groove 1003, and insert in the fixed block 1001 and be provided with first inserted block 1004 and second inserted block 1005, second inserted block 1005 is being connected with the same end with first inserted block 1004 and is being provided with second reset spring 1006, the one end of inserting post 1002 is provided with spacing section of thick bamboo 1007, the external diameter of spacing section of thick bamboo 1007 equals with the diameter of placing circular slot 902, and the setting position is corresponding, the setting group number is the same, it is provided with second extrusion spring 1008 to connect in the spacing section of thick bamboo 1007, and the second extrusion spring 1008 other end is connected and is provided with extrusion piece 1009, and it is corresponding with holding device 9 setting position to require spacing fixed knot to construct 10, it is the same to set up the group.

An operation method of a device for improving the propagation rate of donkey meat by freezing artificial insemination is disclosed, wherein in the actual construction process, the construction method comprises the following steps:

s1; firstly, placing a freezing pipe containing semen in a placing circular groove 902 in a containing device 9, and vertically placing;

s2: then, by rotating the extrusion sleeve ring 907 on the containing round body 901, the arc extrusion chute 908 is driven to extrude the first extrusion block 903 along with the rotation of the extrusion sleeve ring 907 until the arc elastic block 906 is attached to the side wall of the freezing pipe;

s3: when the collar 907 is rotated and extruded in the operation process of step S2, the concave movable block 910 is pressed, and when the arc-shaped elastic block 906 is attached to the side wall of the freezer pipe, the concave movable block 910 is loosened, and the concave movable block 910 is clamped in the fixed square groove 913 under the action of the first extrusion spring 911, so as to realize the primary clamping of the freezer pipe;

s4: then, the plug column 1002 is pressed to drive the limiting cylinder 1007 to be plugged and sleeved at the upper end of the freezing pipe, and the squeezing sheet 1009 and the second squeezing spring 1008 are arranged, so that a good sealing auxiliary effect can be achieved on the sealing position of the upper end of the freezing pipe, the freezing pipe is enabled to keep a vertical position, the freezing work is facilitated, and the freezing work quality is guaranteed;

s5: in the working process of the step S4, when the insert column 1002 is pressed, the second insert block 1005 is pulled, so that the first insert block 1004 is separated from the annular clamping groove 1003, and finally, the second insert block 1005 is loosened after the limiting work of the freezing pipe is completed, thereby fixing the position of the insert column 1002.

According to the invention, through the arrangement of the first placing frame 2, the first cover plate 3, the second placing frame 4 and the second cover plate 5, firstly, a freezing pipe is placed in the placing circular groove 902 in the placing circular body 901 on the placing device 9 on the second placing frame 4, then the pressing collar 907 is rotated, the arc-shaped pressing chute 908 is driven to press the first pressing block 903 along with the rotation of the pressing collar 907, until the arc-shaped elastic block 906 is attached to the side wall of the freezing pipe, and the concave movable block 910 is pressed at the same time in the process, when the arc-shaped elastic block 906 is attached to the side wall of the freezing pipe, the concave movable block 910 is loosened, further the concave movable block 910 is clamped in the fixed square groove 913 under the action of the first pressing spring 911 to clamp the freezing pipe, and then the second cover plate 5 is initially rotated to be right above the second placing frame 4 through the rotation action of the pin shaft 8, the two semicircular threaded columns 6 are fixedly connected through the connecting screw cap 7, so that the second cover plate 5 and the second placing frame 4 are fixedly connected, and then, the limiting cylinder 1007 is driven to be inserted and sleeved at the upper end of the freezing pipe by pressing the inserting column 1002, and the freezing pipe is driven to be fixed at the lower end of the freezing pipe by the pressing sheet 1009 and the second pressing spring 1008, the sealing position of the upper end of the freezing pipe can have good sealing auxiliary effect, the first placing frame 2, the first cover plate 3, the second placing frame 4 and the second cover plate 5 are integrally placed in the freezing cabinet body 1 according to the same operation process of the first placing frame 2 and the first cover plate 3, directly through the handle after freezing work finishes, wholly take out first rack 2, first apron 3, second rack 4, second apron 5, again with the cryovial one by one from the device 9 that holds on first rack 2 and the second rack 4 can.

The practical function is as follows:

1. the first placing frame, the first cover plate, the second placing frame and the second cover plate are more convenient for placing the freezing pipe in the semen freezing process, and the freezing pipe can be integrally taken out once when the freezing operation is finished, so that the situation that the freezing pipe is not taken out timely is avoided, the performance of frozen semen can be further ensured, and the insemination success rate is ensured;

2. through the device that holds that sets up, in freezing the course of the work, can carry out vertical the placing with it to the cryovial, and place stably, the phenomenon of empting can not appear in freezing the course of the work, moreover, through the spacing fixed knot structure that sets up, can carry out further rigidity to the cryovial on the one hand, improve the stability of cryovial when freezing the work, on the other hand is through the spacing section of thick bamboo that wherein sets up, second extrusion spring, the stripper plate, sealed effect is assisted in having an extrusion to the mouth of pipe sealing position of cryovial, and then guarantee that it can not lead to sealed the reducing because of expend with heat and contract with cold, and then guarantee the normal clear of freezing work, guarantee freezing operating mass.

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

13页详细技术资料下载
上一篇:一种医用注射器针头装配设备
下一篇:一种用于妇产科的易于取用型子宫托组件

网友询问留言

已有0条留言

还没有人留言评论。精彩留言会获得点赞!

精彩留言,会给你点赞!