CN203029423U

CN203029423U - Low-dose semen deposition apparatus for deep uterus of pig and end extension structure of semen deposition apparatus

Info

Publication number: CN203029423U
Application number: CN2012207219317U
Authority: CN
Inventors: 田见晖; 杨升; 吴中红; 安磊; 李琴
Original assignee: China Agricultural University
Current assignee: China Agricultural University
Priority date: 2012-12-25
Filing date: 2012-12-25
Publication date: 2013-07-03
Anticipated expiration: 2022-12-25

Abstract

An artificial insemination device for pigs and the end protruding structure of the insemination device. It includes the outer tube of the insemination device and the core tube of the insemination tube set in the outer tube of the insemination device, wherein the front end of the outer tube of the insemination device is fixedly installed with a guide element, one end of the guide element has a first reaming section, and the first reaming area One end of the fertilization core tube set on the guide element extends out to widen the path and abut against the cervix; the other end is the second reaming section, which is arranged between the guide element and the cervix. One end of the butt joint of the outer tube of the insemination device is used to widen the path when retracting; an annular groove is arranged between the first reaming section and the second reaming section; There are several longitudinal through grooves, which are arranged to pass through the guide element up to the front and rear end regions of the cone. The insemination core tube has a limit end structure, and the outer tube of the insemination device is equipped with a telescopic locking device.

Description

One boar is visited with the end of deep, uterus low dosage semen deposition apparatus and seme-deposition device thereof and stretches structure

Technical field

This case belongs to the veterinary and uses test-tube apparatus, is applicable to that particularly artificial insemination's apparatus of pig and the spy of seme-deposition device end thereof stretch structure.

Background technology

In pig industry, artificial insemination's technology breeding porkling is ready to adopt in increasing peasant household and pig farm, because can reduce the raising quantity of boar so significantly, namely reduce cost, preferred boar makes that the concordance of commercialization offspring pig is better, thereby can improve income again.

Prior art, as disclosed Chinese patent " 200680054922.4 are used for breeding animals; the insemination device of sow particularly ", this device, comprise: for the supporting member that engages with the vagina of animal, this supporting member is from the far-end of the proximal extension auto levelizer of device, and this near-end can be associated with the cervix uteri of animal, and described supporting member also provides exit opening; At least one deformable container, this deformable container is associated with supporting member, and limits the chamber that at least one is used for holding seminal fluid in inside, and described chamber is communicated with the exit opening fluid.Deformable container seals supporting member at least in part, and between the configuration of the sky of the full configuration of chamber and chamber, be out of shape, wherein in the full configuration of chamber, the chamber housing seminal fluid, in the configuration of the sky of chamber, chamber discharges seminal fluid stream by exit opening what the uterine contraction by animal caused after the chamber effect of depressing, deformable container in the full configuration of chamber strain does not take place at least.

For another example, disclosed Chinese patent " 200920263560.0 1 kinds of utensils that are used for pig intrauterine insemination or non-operation embryo transfer; comprise vagina guiding tube and uterus input pipe, the vagina guiding tube is socketed in outside the input pipe of uterus, and vagina guiding tube front end arranges lubricated buffer head; Uterus input pipe joint cross section is oval, and the joint front end is the globoidal structure that radius of curvature is changed from small to big, and the joint both sides respectively have aperture, and input pipe rear end, uterus is trumpet-shaped input port.

Also have, disclosed Chinese patent " be made up of breeding folder, semen deposition bottle fixed mount, deferent duct and flexible pipe with the automatic spermatic device of breeding by 201120349722.X pig farm; The breeding folder is the ellipsoidal structure of opening, is clipped in the sow back, and deferent duct is connected with flexible pipe one end, and the flexible pipe other end is communicated with semen deposition bottle bottom.

Although industry is being made a lot of contributions aspect artificial insemination's apparatus, but the following problems that prior art exists needs to be resolved hurrily: if apparatus stretches into the inner semen deposition in uterus, with regard to the problem that is difficult to avoid seminal fluid to reflux, the problem that flows backwards for seminal fluid can not solve always well, thereby needed semen dosage is bigger, and the semen deposition success rate is lower relatively, wastes also big.Also having, is exactly the reason structural reason, and apparatus is difficult for extending into the deep, uterus, and the degree of depth that probes into is bad grasp also.Also have, the structure of the existing semen deposition apparatus of reason is reasonable inadequately, and the situation that the intravaginal dirt of receptor is pushed into the uterus is easy to take place, the genital system infection of so easy initiation receptor, and this certain no good cake is because severe patient may cause sow infertile all the life.Also have, existing exactly semen deposition apparatus exists complex structure, manufacturing cost higher, thereby the high problem of disposable use consumer cost.

Industry is demanded a kind of apparatus urgently namely can probe into deep, uterus injection seminal fluid, can avoid into seminal fluid again refluxes, thereby the semen deposition apparatus that can realize the low dosage semen deposition comes out, moreover, market also wish it be construct more reasonable, can effectively avoid reason semen deposition operation to bring the problem of genital system infection to receptor, having is exactly to wish that it is simple structure, the semen deposition apparatus that is suitable for the one-time consumption use with low cost again, so that marketing.

Summary of the invention

This case problem to be solved is to overcome the above-mentioned defective that aforementioned techniques exists, stretch structure and provide a boar to visit with the end of deep, uterus low dosage semen deposition apparatus and seme-deposition device thereof, solve the aforementioned expectation of industry and the above-mentioned market demand, below in conjunction with concrete technical measures, select and to illustrate structure effect characteristics.

This case semen deposition apparatus technical solution problem takes following technical scheme to realize, a boar that provides according to this case is with deep, uterus low dosage semen deposition apparatus, comprise the seme-deposition device outer tube and be sleeved on the interior semen deposition core pipe of seme-deposition device outer tube, described seme-deposition device outer tube and semen deposition core pipe are set to the intussusception telescopic construction, be that the seme-deposition device outer tube has and holds semen deposition core pipe and pass through, and can hold this semen deposition core pipe and stretch out the through hole of withdrawal, it is characterized in that, described seme-deposition device outer tube leading section fixed installation induction element, described induction element one end has the first reaming district portion, the semen deposition core pipe that this first reaming district portion is arranged on induction element stretches out an end, is used for widening the path, and replace at the cervix uteri oral area; The other end is the second reaming district portion, and this second reaming district portion is arranged on the end that induction element docks with the seme-deposition device outer tube, is used for widening when returning the path; Between the first reaming district portion and the second reaming district portion cannelure is set; At the induction element outer surface, also be laid with several vertical grooves along its axial direction, this vertical groove is set to connect induction element until the forward and backward petiolarea of cone portion; Perhaps, described vertical groove is set to connect induction element until the forward and backward petiolarea of cone portion, and vertically groove length is set to: vertically groove arises from the position that cone front end region portion is equivalent to middle waist, terminates in the position that cone rear end region portion is equivalent to middle waist.

This case technical solution problem can also take following technical scheme further to realize:

Aforesaid pig deep, uterus low dosage semen deposition apparatus, wherein, also have, the flexible locking device of described seme-deposition device outer tube configuration, it has and can be sleeved on the semen deposition core pipe, and can be along semen deposition core tube side to the suit through hole that slides, should have the anterior mouth of pipe district portion that is positioned at successively by flexible locking device, be positioned at the hand push district portion at middle part, be positioned at the handle region portion at rear portion, the mouth of pipe external diameter of described mouth of pipe district portion is slightly larger than the spout diameter of seme-deposition device outer tube, several undergauge gap distribute on the tube wall of mouth of pipe district portion, the lines that skids is avoided in the outer surface of tube wall setting that is positioned at the handle region portion at rear portion, and the hand push district portion between handle region portion and the mouth of pipe district portion is that diameter is greater than the middle baffle plate of the outer external diameter of pipe of seme-deposition device; The handle region portion of described flexible locking device has preset length, disposes scale label on the semen deposition core pipe, the scale coupling combination on handle region portion afterbody and the semen deposition core pipe.

Aforesaid pig deep, uterus low dosage semen deposition apparatus, wherein, described semen deposition core pipe has spacing termination structure, and described positive stop end head structure is at semen deposition core pipe front end oral area suit round end fluid medicated cap, and leaves the liquid outlet that communicates with semen deposition core pipe; Or described positive stop end head structure is at the one-body molded round end fluid of semen deposition core pipe front end oral area medicated cap, and leaves the liquid outlet that communicates with semen deposition core pipe; Described round end fluid medicated cap is circle or oval ball cap, and the maximum outside diameter of this round end fluid medicated cap is equivalent to the bore that the semen deposition core pipe of induction element on the seme-deposition device outer tube stretches out, and greater than the seme-deposition device outer tube diameter.

Aforesaid pig deep, uterus low dosage semen deposition apparatus, wherein, the first reaming district portion of described induction element is made of cone front end region portion and preceding reaming district portion; The second reaming district portion of described induction element is made of cone rear end region portion and reaming district, back portion; Between the cone front end region portion of described induction element and cone rear end region portion, form reaming district portion, the maximum outside diameter of this reaming district portion is set to be slightly larger than the size of the cervical orifice of receptor, and described cannelure is at the induction element outer surface, is positioned at this reaming district portion position, radially arranges; Or/and, described induction element has central through hole, this central through hole is set to the concentric reducer aperture, be macropore along seme-deposition device outer tube back-end direction, namely the end that docks with the seme-deposition device outer tube of this central through hole is seme-deposition device outer tube assembly section portion, and the external diameter that the diameter of this seme-deposition device outer tube assembly section portion is slightly less than the seme-deposition device outer tube is the major part aperture; The microcephaly aperture is that the other end of this central through hole is that semen deposition core pipe stretches out district portion, and the diameter that semen deposition core pipe stretches out district portion is set to be slightly larger than the external diameter of semen deposition core pipe end, but less than the diameter of seme-deposition device outer tube assembly section portion.

This case semen deposition apparatus technical solution problem takes following technical scheme to realize, the end of a kind of seme-deposition device that provides according to this case is visited and is stretched structure, comprise the seme-deposition device outer tube and be sleeved on the interior semen deposition core pipe of seme-deposition device outer tube, described seme-deposition device outer tube and semen deposition core pipe are set to the intussusception telescopic construction, be that the seme-deposition device outer tube has and holds semen deposition core pipe and pass through, and can hold this semen deposition core pipe and stretch out the through hole of withdrawal, it is characterized in that, induction element is fixedly mounted on the leading section of seme-deposition device outer tube, described induction element one end has the first reaming district portion, the semen deposition core pipe that this first reaming district portion is arranged on induction element stretches out an end, is used for widening the path, and replace at the cervix uteri oral area; The other end is the second reaming district portion, and this second reaming district portion is arranged on the end that induction element docks with the seme-deposition device outer tube, is used for widening when returning the path; Between the first reaming district portion and the second reaming district portion cannelure is set; At the induction element outer surface, also be laid with several vertical grooves along its axial direction, this vertical groove is set to connect induction element until the forward and backward petiolarea of cone portion; Perhaps, described vertical groove is set to connect induction element until the forward and backward petiolarea of cone portion, and vertically groove length is set to: vertically groove arises from the position that cone front end region portion is equivalent to middle waist, terminates in the position that cone rear end region portion is equivalent to middle waist.

The end of aforesaid seme-deposition device is visited and is stretched structure, and wherein, the first reaming district portion of described induction element is made of cone front end region portion and preceding reaming district portion; The second reaming district portion of described induction element is made of cone rear end region portion and reaming district, back portion; Between the cone front end region portion of described induction element and cone rear end region portion, form reaming district portion, the maximum outside diameter of this reaming district portion is set to be slightly larger than the size of the cervical orifice of receptor, and described cannelure is at the induction element outer surface, is positioned at this reaming district portion position, radially arranges.

The end of aforesaid seme-deposition device is visited and is stretched structure, wherein, described induction element has central through hole, this central through hole is set to the concentric reducer aperture, be macropore along seme-deposition device outer tube back-end direction, namely the end that docks with the seme-deposition device outer tube of this central through hole is seme-deposition device outer tube assembly section portion, and the external diameter that the diameter of this seme-deposition device outer tube assembly section portion is slightly less than the seme-deposition device outer tube is the major part aperture; The microcephaly aperture is that the other end of this central through hole is that semen deposition core pipe stretches out district portion, and the diameter that semen deposition core pipe stretches out district portion is set to be slightly larger than the external diameter of semen deposition core pipe end, but less than the diameter of seme-deposition device outer tube assembly section portion.

The end of aforesaid seme-deposition device is visited and is stretched structure, and wherein, the setting that described induction element central through hole is the concentric reducer aperture refers to that this central through hole is that an end is hole, big footpath, and the other end is the through hole in path hole; Or this central through hole is the through hole that omits tapering.

The end of aforesaid seme-deposition device is visited and is stretched structure, wherein, the cannelure of described induction element or vertical groove are the circular arc type groove, each rib portion of induction element outer surface is circular arc chamfering, the top ends of described cone front end region portion and cone rear end region portion is round end, and vertically the intersecting lens of groove and induction element outer surface also is circular arc chamfering.

The end of aforesaid seme-deposition device is visited and is stretched structure, wherein, the cannelure of described induction element and vertical groove are the circular arc type groove, each rib portion of induction element outer surface is circular arc chamfering, the top ends of described cone front end region portion and cone rear end region portion is round end, and vertically the intersecting lens of groove and induction element outer surface also is circular arc chamfering.

The end of aforesaid seme-deposition device is visited and is stretched structure, and wherein, described liquid outlet is arranged on semen deposition core pipe front end or two side positions.

The end of aforesaid seme-deposition device is visited and is stretched structure, and wherein, described liquid outlet is arranged on semen deposition core pipe front end and two side positions.

The end of aforesaid seme-deposition device is visited and is stretched structure, and wherein, the described first reaming district portion is set to identical with the second reaming district portion appearance structure.

This case semen deposition apparatus technical solution problem takes following technical scheme to realize, a boar that provides according to this case is with deep, uterus low dosage semen deposition apparatus, comprise seme-deposition device outer tube 1 and the semen deposition core pipe 2 that is sleeved in the seme-deposition device outer tube 1, dock with syringe for artificial impregnation by interface mouth 6 described semen deposition core pipe rear end, described seme-deposition device outer tube and semen deposition core pipe are set to the intussusception telescopic construction, be that the seme-deposition device outer tube has and holds semen deposition core pipe and pass through, and can hold this semen deposition core pipe and stretch out the through hole of withdrawal, semen deposition core pipe can stretch out or returns along the seme-deposition device outer tube, described semen deposition core pipe is used for carrying seminal fluid, described seme-deposition device outer tube is the guide wire of semen deposition core pipe, be responsible for semen deposition core pipe is delivered to cervical orifice, wherein, described seme-deposition device outer tube rear and front end, the pioneer is front end, the other end is the rear end, seme-deposition device outer tube leading section 11 fixed installation induction elements 3, described induction element one end has first 32a of reaming district portion, the semen deposition core pipe that this first reaming district portion is arranged on induction element stretches out an end, widens the path when being used for stretching to the receptor uterus, and replace at the cervix uteri oral area; The other end is second 32b of reaming district portion, and this second reaming district portion is arranged on the end that induction element docks with the seme-deposition device outer tube, is used for widening when returning the path; Between first 32a of reaming district portion and second 32b of reaming district portion cannelure 324 is set; At the induction element outer surface, also be laid with several vertical grooves 325 along its axial direction, this vertical groove is set to connect induction element until the forward and backward petiolarea of cone portion;

Perhaps, vertically groove is set to connect induction element until the forward and backward petiolarea of cone portion, and vertically groove length is set to: vertically groove arises from the position 325a that cone front end region portion is equivalent to middle waist, terminate in the position 325b that cone rear end region portion is equivalent to middle waist, the bulk strength that can also take into account conduit configuration and element is set thus.

Thus, the semen deposition apparatus can be insinuated into the deep in receptor uterus, and so just dosage is imported seminal fluid as required, does not need to import to prevent metering turn-up loss, unnecessary, thereby can realize the purpose of low dosage input seminal fluid, and valuable boar seminal fluid avoids waste.

Induction element can be held a concurrent post three work in the described apparatus, and the one, take on out expansion work, induction element can be expanded the vagina of receptor, and vertically arranging of groove can effectively be avoided piston effect, avoids dirt to bring in, prevents that seminal fluid from flowing backwards.

The 2nd, take on " leading " work, induction element can tightly " be embraced " and the seme-deposition device outer tube and semen deposition core pipe stretches to uterine cervix via the receptor vagina, replaces at cervical orifice, is convenient to semen deposition core pipe and accurately extend into the semen deposition of deep, uterus.

The 3rd, take on protection work, can effectively avoid the tough and tensile part of seme-deposition device outer tube port to touch vagina and the cervical orifice of hindering receptor.

Also have, the setting of vertical groove and cannelure can effectively avoid occurring the piston phenomenon in the described apparatus, prevents dirt intrusion uterus, does not allow the seminal fluid suck-back reflux; Have, the semen deposition apparatus will be coated lubricant when entering receptor again, and the crisscross groove of induction element outer surface is received a little lubricants than the smooth surface meeting storage of Duoing, thereby effectively improves apparatus to the affinity of receptor.

Aforesaid pig deep, uterus low dosage semen deposition apparatus, wherein, also have, the flexible locking device 4 of back-end location configuration of described seme-deposition device outer tube 1, should flexible locking device be cannula configuration, be preferably plastotype spare, cost is lower, it has and can be sleeved on the semen deposition core pipe, and can be along semen deposition core tube side to the suit through hole 42 that slides freely, should have the anterior mouth of pipe district portion that is positioned at successively by flexible locking device, be positioned at the hand push district portion at middle part, be positioned at the handle region portion at rear portion, the mouth of pipe external diameter of described mouth of pipe district portion 421 is slightly larger than the spout diameter of seme-deposition device outer tube, several undergauge gap 4211 distribute on the tube wall of mouth of pipe district portion, be used for when mouth of pipe district portion is slotting when stretching between semen deposition core pipe and seme-deposition device outer tube, it is closed that the seme-deposition device outer tube forces each undergauge gap to draw in, semen deposition core pipe is held tightly by this mouth of pipe district portion like this, thereby realizes the locking purpose between semen deposition core pipe and the seme-deposition device outer tube.The lines that skids is avoided in the outer surface of tube wall setting that is positioned at the handle region portion at rear portion, and the hand push district portion between handle region portion and the mouth of pipe district portion is that diameter is greater than the middle baffle plate of the outer external diameter of pipe of seme-deposition device, to make things convenient for manual operation.

Aforesaid pig deep, uterus low dosage semen deposition apparatus, wherein, the handle region portion of described flexible locking device has preset length, disposes scale label on the semen deposition core pipe, the scale coupling combination on handle region portion afterbody and the semen deposition core pipe.The backend arrangement interface mouth 6 of described semen deposition core pipe 2 is used for docking with syringe for artificial impregnation or the element of blocking up, during the injection seminal fluid, can dock with syringe for artificial impregnation, can dock with the element of blocking up when not injecting, this interface mouth and the element of blocking up are all quoted prior art, will not give unnecessary details.

The semen deposition apparatus not only has flexible locking device thus, flexible locking device closes the effect that has also possessed slide calliper rule with the semen deposition core duct ligation with scale label, can calibrate semen deposition core pipe and stretch into the depth dimensions in receptor uterus, to realize to control the seminal fluid injection operation of the degree of depth.

Aforesaid pig deep, uterus low dosage semen deposition apparatus, wherein, described semen deposition core pipe 2 front ends have positive stop end head structure 21, semen deposition core pipe rear and front end, the pioneer is called front end, and the other end is the rear end.Described positive stop end head structure is at semen deposition core pipe front end oral area suit round end fluid medicated cap 211, and leaves the liquid outlet 2111 that communicates with semen deposition core pipe; Or described positive stop end head structure is at the one-body molded round end fluid of semen deposition core pipe front end oral area medicated cap 211, and leaves the liquid outlet 2111 that communicates with semen deposition core pipe; Described round end fluid medicated cap is circle or oval ball cap, and the semen deposition core pipe that the maximum outside diameter of this round end fluid medicated cap is equivalent to induction element on the seme-deposition device outer tube stretches out the bore of district portion 312, and greater than the seme-deposition device outer tube diameter.

The semen deposition apparatus has had the positive stop end head structure thus, and described induction element can not only " be held in the arms " and the seme-deposition device outer tube, can also " mouthful holding in the month " semen deposition core pipe, finish the task that guiding seme-deposition device outer tube and semen deposition core pipe stretch to the receptor uterine cervix.

Aforesaid pig deep, uterus low dosage semen deposition apparatus, wherein, the first reaming district portion of described induction element is made of cone front end region portion 322 and the 323a of preceding reaming district portion, this induction element cone front end region portion is responsible for when the semen deposition apparatus puts in receptor, can expand open walk gradually, reduce the discomfort that receptor enters foreign body;

The second reaming district portion of described induction element is made of cone rear end region portion 321 and the 323b of reaming district, back portion, and this induction element cone rear end region portion is responsible for expanding open walk gradually when the semen deposition apparatus withdraws from, and reduces uncomfortable that therefore receptor brings;

Between the cone front end region portion of described induction element and cone rear end region portion, form general to become columned middle part be reaming district portion, the maximum outside diameter of this reaming district portion is set to be slightly larger than the size of the cervical orifice of receptor, and induction element can be replaced at the cervix uteri oral area thus; Described cannelure 324 is at the induction element outer surface, is positioned at this reaming district portion position, radially arranges.

Induction element can be realized expanding open walk gradually between the way that puts in and shrink back thus, can further effectively reduce receptor to the immoderation of foreign body.

Aforesaid pig deep, uterus low dosage semen deposition apparatus, wherein, described induction element has central through hole 31, this central through hole is set to the concentric reducer aperture, be macropore along seme-deposition device outer tube back-end direction, namely the end that docks with the seme-deposition device outer tube of this central through hole is seme-deposition device outer tube assembly section portion 311, and the diameter of this seme-deposition device outer tube assembly section portion is slightly less than the external diameter (external profile diameter) of seme-deposition device outer tube, is the major part aperture; The microcephaly aperture is that the other end of this central through hole is that semen deposition core pipe stretches out district portion 312, and the diameter that semen deposition core pipe stretches out district portion is set to be slightly larger than the external diameter of semen deposition core pipe end, but less than the diameter of seme-deposition device outer tube assembly section portion.

So the central through hole that arranges can be finished two tasks: the one, and it is flexible freely to hold semen deposition core pipe, the 2nd, the seme-deposition device outer tube there is the effect of seam, when apparatus stretched into receptor and advances, the seme-deposition device outer tube can not leapt up out, can avoid the tough and tensile part in seme-deposition device outer tube port edge to expose effectively.

Aforesaid pig deep, uterus low dosage semen deposition apparatus, wherein, described induction element central through hole is the setting in concentric reducer aperture, refers to that described central through hole is that an end is hole, big footpath, the other end is the through hole in path hole; Or described central through hole is the through hole that omits tapering.

Aforesaid pig deep, uterus low dosage semen deposition apparatus, wherein, the cannelure of described induction element is or/and vertical groove is the circular arc type groove, each rib portion of induction element outer surface is circular arc chamfering, described rib portion refers to the intersecting lens of adjacent region portion, comprises that the intersecting lens of cone front end region portion and preceding reaming district portion is circular arc chamfering; Cone rear end region portion is circular arc chamfering with the intersecting lens of reaming district, back portion; Each intersecting lens of back reaming district portion and cannelure, cannelure and front and back reaming district portion is circular arc chamfering; The top ends of described cone front end region portion and cone rear end region portion is round end, and the intersecting lens of each vertical groove and induction element outer surface also is circular arc chamfering.

Induction element has formed the perfectly round beformable body parts that do not have the tip cutting edge thus, further improves apparatus to the affinity of receptor.

This setting also takes into account and is conducive to integrated technology manufacturing, can effectively reduce manufacturing cost.

Aforesaid pig deep, uterus low dosage semen deposition apparatus, wherein, described liquid outlet can be arranged on semen deposition core pipe front end or/and two side positions; Or/and the described first reaming district portion can be set to identical with the second reaming district portion appearance structure.

The process conditions of more optimization industry manufacturing are further taken into account the arts demand that is conducive to disposable apparatus batch process thus, can more effective reduction manufacturing cost.

The end of this case seme-deposition device is visited and is stretched structure, be used for aforementioned semen deposition apparatus, its technical solution problem takes following technical scheme to realize, the end of a kind of seme-deposition device that provides according to this case is visited and is stretched structure, comprise seme-deposition device outer tube 1 and be sleeved on the interior semen deposition core pipe 2 of seme-deposition device outer tube, described seme-deposition device outer tube and semen deposition core pipe are set to the intussusception telescopic construction, be that the seme-deposition device outer tube has and holds semen deposition core pipe and pass through, and can hold this semen deposition core pipe and stretch out the through hole of withdrawal, it is characterized in that, induction element is fixedly mounted on the leading section of seme-deposition device outer tube, described induction element one end has first 32a of reaming district portion, the semen deposition core pipe that this first reaming district portion is arranged on induction element stretches out an end, is used for widening the path, and replace at the cervix uteri oral area; The other end is second 32b of reaming district portion, and this second reaming district portion is arranged on the end that induction element docks with the seme-deposition device outer tube, is used for widening when returning the path; Between first 32a of reaming district portion and second 32b of reaming district portion cannelure 324 is set; At the induction element outer surface, also be laid with several vertical grooves 325 along its axial direction, this vertical groove is set to connect induction element until the forward and backward petiolarea of cone portion; Perhaps, described vertical groove is set to connect induction element until the forward and backward petiolarea of cone portion, and vertically groove length is set to: vertically groove arises from the position 325a that cone front end region portion is equivalent to middle waist, terminates in the position 325b that cone rear end region portion is equivalent to middle waist.

The end of aforesaid seme-deposition device is visited and is stretched structure, and wherein, the first reaming district portion of described induction element is made of cone front end region portion 322 and the 323a of preceding reaming district portion; The second reaming district portion of described induction element is made of cone rear end region portion 321 and the 323b of reaming district, back portion; Between the cone front end region portion of described induction element and cone rear end region portion, form reaming district portion, the maximum outside diameter of this reaming district portion is set to be slightly larger than the size of the cervical orifice of receptor, and described cannelure 324 is at the induction element outer surface, is positioned at this reaming district portion position, radially arranges.

The end of aforesaid seme-deposition device is visited and is stretched structure, wherein, described induction element has central through hole 31, this central through hole is set to the concentric reducer aperture, be macropore along seme-deposition device outer tube back-end direction, namely the end that docks with the seme-deposition device outer tube of this central through hole is seme-deposition device outer tube assembly section portion 311, and the external diameter that the diameter of this seme-deposition device outer tube assembly section portion is slightly less than the seme-deposition device outer tube is the major part aperture; The microcephaly aperture is that the other end of this central through hole is that semen deposition core pipe stretches out district portion 312, and the diameter that semen deposition core pipe stretches out district portion is set to be slightly larger than the external diameter of semen deposition core pipe end, but less than the diameter of seme-deposition device outer tube assembly section portion.

The end of aforesaid seme-deposition device is visited and is stretched structure, wherein, the cannelure of described induction element is or/and vertical groove is the circular arc type groove, each rib portion of induction element outer surface is circular arc chamfering, the top ends of described cone front end region portion and cone rear end region portion is round end, and vertically the intersecting lens of groove and induction element outer surface also is circular arc chamfering.

The end of aforesaid seme-deposition device is visited and is stretched structure, and wherein, described liquid outlet can be arranged on semen deposition core pipe front end or/and two side positions; Or/and the described first reaming district portion can be set to identical with the second reaming district portion appearance structure.

This case compared with prior art has significant advantage and beneficial effect.

By above technical scheme as can be known, this case also has following advantage at least under the structure configuration of excellence:

To sum up, this case is not only simple in structure, and structure considers the condition of the technology of the disposable utensil of manufacturing in enormous quantities in arranging, and can effectively reduce manufacturing cost, therefore is suitable as disposable apparatus and promotes, and is fit to the vast user of raising pigs and the place of raising pigs is used.

The refluence of seminal fluid not only can be effectively avoided in the reasonable setting of this case, improve the utilization rate of seminal fluid and artificial insemination's success rate, also have, can effectively reduce the infection probability in sow uterus, reduce the beneficial technical effects such as sickness rate of breeding difficulty, this shows that this has also opened up new way to the genetic potential of giving full play to superfine boar, also have, the use that is difficult for obtaining seminal fluid such as special seminal fluid such as frozen semen or property control seminal fluid is also had great importance.

The specific embodiment of this case is provided in detail by following examples and accompanying drawing thereof.

Description of drawings

Fig. 1 is this case overall structure schematic perspective view;

Fig. 2 is the decomposition texture sketch map of positive stop end head structure in this case induction element and the semen deposition core pipe part;

Fig. 3 is this case single unit system axial centre cross-sectional view;

Fig. 4 is the overall structure schematic perspective view of induction element in this case;

Fig. 5 is the axial centre cross-sectional view of induction element in this case;

Fig. 6 is the perspective view of flexible locking device in this case;

Fig. 7 is the structural representation of the another example of induction element in this case;

Fig. 8 is the decomposition texture sketch map of the another example of positive stop end head structure in this case.

The specific embodiment

Below in conjunction with preferred embodiment, the specific embodiment that this case provides to foundation, feature and effect thereof, describe in detail as after; For simple and purpose clearly, hereinafter appropriate omission the description of known technology, in order to avoid those unnecessary details influences are to the description of the technical program.

Shown in Fig. 1-8, one boar deep, uterus low dosage semen deposition apparatus, comprise seme-deposition device outer tube 1 and the semen deposition core pipe 2 that is sleeved in the seme-deposition device outer tube 1, described seme-deposition device outer tube and semen deposition core pipe are set to the intussusception telescopic construction, be that the seme-deposition device outer tube has and holds semen deposition core pipe and penetrate, and the through hole that can stretch freely, semen deposition core pipe can stretch out or returns along the seme-deposition device outer tube, described semen deposition core pipe is used for carrying seminal fluid, described seme-deposition device outer tube is the guide wire of semen deposition core pipe, be responsible for semen deposition core pipe is delivered to cervical orifice, wherein, described seme-deposition device outer tube rear and front end, the pioneer is front end, the other end is the rear end, seme-deposition device outer tube leading section 11 fixed installation induction elements 3 are referring to Fig. 1, Fig. 3; Described induction element has central through hole 31, referring to Fig. 5, this central through hole is set to the concentric reducer aperture, be macropore along seme-deposition device outer tube back-end direction, namely the end that docks with the seme-deposition device outer tube of this central through hole is seme-deposition device outer tube assembly section portion 311, the diameter of this seme-deposition device outer tube assembly section portion is slightly less than the external diameter (external profile diameter) of seme-deposition device outer tube, is the major part aperture; The microcephaly aperture is that the other end of this central through hole is that semen deposition core pipe stretches out district portion 312, and the diameter that semen deposition core pipe stretches out district portion is set to be slightly larger than the external diameter of semen deposition core pipe end, but less than the diameter of seme-deposition device outer tube assembly section portion.So the central through hole that arranges can be finished two tasks: the one, and it is flexible freely to hold semen deposition core pipe, and the 2nd, the seme-deposition device outer tube there is the effect of seam, when apparatus stretched into receptor and advances, the seme-deposition device outer tube can not leapt up out.

Described induction element one end has first 32a of reaming district portion, is responsible for widening road when apparatus puts in advance, recognizes into and replaces at the cervix uteri oral area; The other end is second 32b of reaming district portion, is responsible for widening road when apparatus withdraws from.Between first 32a of reaming district portion and second 32b of reaming district portion cannelure 324 is set.

The described first reaming district portion can be set to identical with the second reaming district portion appearance structure, more to optimize the industrialization manufacturing, the semen deposition core pipe that the described first reaming district portion is arranged on induction element stretches out an end, it is made of cone front end region portion 322 and the 323a of preceding reaming district portion, this induction element cone front end region portion is responsible for when the semen deposition apparatus puts in receptor, can expand open walk gradually, reduce the discomfort that receptor enters foreign body;

The described second reaming district portion is arranged on the end that induction element docks with the seme-deposition device outer tube, it is made of cone rear end region portion 321 and the 323b of reaming district, back portion, this induction element cone rear end region portion is responsible for expanding open walk gradually when the semen deposition apparatus withdraws from, and reduces uncomfortable that therefore receptor brings;

Between the cone front end region portion of described induction element and cone rear end region portion, form general to become columned middle part be reaming district portion, the maximum outside diameter of this reaming district portion is set to be slightly larger than the size of the cervical orifice of receptor, and induction element can be replaced at the cervix uteri oral area thus; Described cannelure 324 is at the induction element outer surface, is positioned at this reaming district portion position, radially arranges, so far, the 323a of reaming district portion and the 323b of reaming district, back portion before cannelure is divided into reaming district portion, thus, described induction element profile figure is just as having " Semen Jujubae " of little eel-like figure, it is the boundary that this induction element has formed with cannelure 324, and an end is first 32a of reaming district portion, widens road when being responsible for putting in and replaces at the cervix uteri oral area; The other end is second 32b of reaming district portion, widens road when being responsible for withdrawing from.

Not only the position, reaming district of described induction element installs cannelure 324, at the induction element outer surface, also be laid with several vertical grooves 325 along its axial direction, this vertical groove is set to connect induction element until the forward and backward petiolarea of cone portion, can allow air channel stretch thus and may begin to produce the position of piston effect, therefore can more effectively avoid producing piston effect.Further, vertically groove length is set to: vertically groove arises from the position 325a that cone front end region portion is equivalent to middle waist, terminates in the position 325b that cone rear end region portion is equivalent to middle waist, and the bulk strength that can take into account conduit configuration and element is set thus.

In order to improve induction element to the flexible comfort level further step of receptor be: described cannelure or/and vertically groove be set to the circular arc type groove, namely cannelure or vertically any transverse section bottom land of groove be circular-arc, referring to shown in Figure 1; Each rib portion (intersecting lens of adjacent region portion) of induction element outer surface is arc chord angle, comprises that the intersecting lens of cone front end region portion and preceding reaming district portion is circular arc chamfering; Cone rear end region portion is circular arc chamfering with the intersecting lens of reaming district, back portion; Each intersecting lens of back reaming district portion and cannelure, cannelure and front and back reaming district portion is circular arc chamfering; The top ends of described cone front end region portion and cone rear end region portion is round end, the intersecting lens of each vertical groove and induction element outer surface also is circular arc chamfering, induction element has formed the perfectly round beformable body parts that do not have the tip cutting edge thus, this setting also takes into account and is conducive to integrated technology manufacturing, for the disposable apparatus of manufacturing in enormous quantities, can effectively reduce manufacturing cost.

Described vertical groove has three effects concurrently, and the one, at the outer surface formation air channel of induction element, avoid occurring the piston phenomenon; The 2nd, form the passage that repels dirt; The 3rd, form the storage carry lubricant and receive groove.

The effect of described cannelure: the one, cannelure is combined the buffering blowdown conduit that formation allows dirt get rid of in order with vertical groove; The 2nd, cannelure is combined the groove that carries that forms crisscross lubricant with vertical groove.

Specifically, the setting of described vertical groove and cannelure is for solving such problem:

1. avoid the piston phenomenon occurring, prevent dirt intrusion uterus, do not allow the seminal fluid suck-back reflux.

Because the semen deposition apparatus is when operation, the outer surface of induction element can be close to the path inwall of receptor vagina, in the vagina of receptor, advance or withdraw from, be easy to form the effect of similar piston like this, be easy to cause the situation of following bad luck: when the semen deposition apparatus puts in, induction element can be swept along propelling with the dirt in the vagina, and dirt can enter the uterus of receptor unavoidably; When the semen deposition apparatus withdrawed from, induction element can produce certain suction force, allowed the seminal fluid that just is transported in the uterus flow backwards out, and this not only wastes seminal fluid, also the specified rate semen deposition bring unfavorable.The reasonable disposition of vertical groove and cannelure is head it off just effectively.

2. avoid intravaginal dirt to enter the uterus, and allow its orderly discharge, do not allow it overflow and flee.

Enter the vagina of receptor when induction element after, because the vertically setting of groove, dirt in the vagina can eject along the vertical groove of the first reaming district portion, and can not be pushed into, squeezing the dirt of not going out for those quickly, can temporarily be taken in by cannelure, discharge by the vertical groove of the second reaming district portion again, can guarantee that thus dirt gets rid of in order, not walk randomly and can not overflow, can effectively avoid being swept along by the semen deposition utensil and invade the uterus.

3. the more sufficient lubricant that carries.

The semen deposition apparatus will be coated lubricant when entering receptor, the crisscross groove of induction element outer surface is received a little lubricants than the smooth surface meeting storage of Duoing, can make the semen deposition apparatus between advancing on the way, have enough lubricants to send usefulness thus, thereby effectively improve induction element to the affinity of receptor.

Further, the central through hole of described induction element is set to the concentric reducer aperture, and it includes but not limited to realize as follows: central through hole is that an end is hole, big footpath, and the other end is the through hole in path hole, referring to Fig. 5; Or central through hole is the through hole that omits tapering, referring to Fig. 7; Or the elastic deformability of the elastomeric material by selecting induction element for use realizes.

This arranges further to take into account and is conducive to the technology manufacturing that disposable apparatus is produced in batches, can more effective reduction manufacturing cost.

This induction element material be medical or food with level other softness, elastomeric material, it includes but not limited to it is commercially available medical foam rubbery material, does not also get rid of the material of existing other similar performances.

Seme-deposition device outer tunnel end oral area is held tightly by whippy guiding piece, and seme-deposition device outer tube port edge can contain in " bosom " that overlays on induction element, can avoid the tough and tensile part in seme-deposition device outer tube port edge to expose thus effectively.

Thus, induction element can be taken on three tasks, and the one, take on out the expansion task, induction element can be expanded the vagina of receptor, and can effectively avoid dirt to bring in, prevents that seminal fluid from flowing backwards.

The 2nd, take on " leading " task, induction element can tightly " be embraced " and the seme-deposition device outer tube and stretch to uterine cervix via the receptor vagina;

The 3rd, take on the protection task, it has put on soft comfortable medicated cap head for the port of seme-deposition device outer tube, can effectively avoid tough and tensile part to touch vagina and the cervical orifice of hindering receptor.

Described semen deposition core pipe 2 front ends have positive stop end head structure 21, semen deposition core pipe rear and front end, and the pioneer is called front end, and the other end is the rear end.Described positive stop end head structure is at semen deposition core pipe front end oral area suit round end fluid medicated cap 211, and leaves the liquid outlet 2111 that communicates with semen deposition core pipe, referring to Fig. 2.Described liquid outlet can be arranged on semen deposition core pipe front end 2111a or/and two

side position

2111b, 2111c, and referring to Fig. 8, wherein illustrated a, b, c are semen deposition core pipe front end and 2111a, 2111b, liquid outlet position that 2111c is corresponding; Semen deposition core pipe front end has formed the termination structure with colloid round end fluid medicated cap thus.

Described round end fluid medicated cap can be circle or oval ball cap, the semen deposition core pipe that the maximum outside diameter of this round end fluid medicated cap should be equivalent to induction element on the seme-deposition device outer tube stretches out the bore of district portion 312, and greater than the seme-deposition device outer tube diameter, can hold the semen deposition core pipe that semen deposition core pipe end can exactly be contained in this induction element like this and stretch out district portion port, and can not move back in the seme-deposition device outer tube, play spacing effect, formed the positive stop end head structure with colloid round end fluid medicated cap thus, referring to Fig. 3.

Described positive stop end head structure can comprise hot-forming by prior art, form the positive stop end head structure of the integrated colloid round end of semen deposition core pipe front end fluid medicated cap, this round end fluid medicated cap be medical or food with level other softness, elastomeric material, it includes but not limited to it is commercially available colloid, plastic material.

The backend arrangement of described seme-deposition device outer tube 1 locking device 4 that stretches, referring to Fig. 1,3,6, should flexible locking device be cannula configuration, be preferably plastotype spare, cost is lower, it has and can be sleeved on the semen deposition core pipe, and can be along semen deposition core tube side to the suit through hole 42 that slides freely, should have the anterior mouth of pipe district portion that is positioned at successively by flexible locking device, be positioned at the hand push district portion at middle part, be positioned at the handle region portion at rear portion, the mouth of pipe external diameter of described mouth of pipe district portion 421 is slightly larger than the spout diameter of seme-deposition device outer tube, several undergauge gap 4211 distribute on the tube wall of mouth of pipe district portion, be used for when mouth of pipe district portion is slotting when stretching between semen deposition core pipe and seme-deposition device outer tube, it is closed that the seme-deposition device outer tube forces each undergauge gap to draw in, semen deposition core pipe is held tightly by this mouth of pipe district portion like this, thereby realizes the locking purpose between semen deposition core pipe and the seme-deposition device outer tube.The lines that skids is avoided in the outer surface of tube wall setting that is positioned at the handle region portion at rear portion, and the hand push district portion between handle region portion and the mouth of pipe district portion is that diameter is greater than the middle baffle plate of the outer external diameter of pipe of seme-deposition device, to make things convenient for manual operation.

Further, handle region portion has preset length, dispose scale label (not shown) on the core of the semen deposition simultaneously pipe, scale coupling combination on handle region portion afterbody and the semen deposition core pipe, form the slide calliper rule structure thus, can calibrate semen deposition core pipe and stretch into the depth dimensions in receptor uterus, to realize to control the seminal fluid injection operation of the degree of depth.

The backend arrangement interface mouth 6 of described semen deposition core pipe 2 is used for docking with syringe for artificial impregnation or the element of blocking up, during the injection seminal fluid, can dock with syringe for artificial impregnation, can dock with the element of blocking up when not injecting, this interface mouth and the element of blocking up are all quoted prior art, will not give unnecessary details.

During operation, scribble the induction element of lubricant, also filling lubricant in the conduit, this induction element band the outer and semen deposition core pipe 2 of deferent duct, stretch into cervical orifice by the sow vagina, induction element born the responsibility deferent duct outer with the receptor cervical orifice between the work of " boil on the nape opposite the mouth is connected ", semen deposition core pipe can stretch into the deep, uterus more accurately, smoothly under holding containing of induction element like this.The operator can be by the slide calliper rule structure of semen deposition core pipe and handle region portion, more effective assurance depth yardstick.By the outer and semen deposition core pipe locking by deferent duct of flexible locking device, stop to relatively move again.At this moment inject seminal fluid by the interface mouth of semen deposition core pipe rear end again.Injection finishes, and withdraws from flexible locking device, and semen deposition core pipe is released, and the operator draws back it again, when the end of semen deposition core pipe is reduced to the induction element port, is subjected to spacing and halts.

Should be noted that outer meeting directly contacts the interior parts of receptor body and should select food stage or other material of medical grade for use with semen deposition core pipe etc. for described induction element, deferent duct, with guarantee apparatus safety.

This case is simple in structure, and structure arranges and makes things convenient for the technology manufacturing, can effectively reduce manufacturing cost, therefore is suitable as disposable apparatus and promotes, and is fit to the vast user of raising pigs and raises pigs the place use.

After the preferred embodiment that describes in detail, be familiar with this technology personage and can clearly understand, can carry out various variations and modification not breaking away under following claim and the spirit, and this case also is not subject to the embodiment of illustrated embodiment in the description.

Claims

1. A deep low-dose insemination instrument for pigs, comprising an insemination outer tube (1) and an insemination core tube (2) set in the insemination outer tube, the insemination outer tube and the insemination core The tube is set in a telescoping structure, that is, the outer tube of the insemination device has a through hole that allows the core tube of insemination to pass through, and can allow the core tube to extend and retract. It is characterized in that the front end of the outer tube of the insemination device The part (11) is fixedly installed with the guide element (3), and one end of the guide element has a first reaming section (32a). Widen the path and abut against the cervix; the other end is a second reaming section (32b), which is set at the end where the guiding element is docked with the outer tube of the vasectomy for retracting When widening the path; an annular groove (324) is set between the first reaming section and the second reaming section; several longitudinal through grooves (325) are evenly arranged on the outer surface of the guide element along its axial direction, The longitudinal through groove is set to pass through the guide element until the front and rear end sections of the cone; or, the longitudinal through groove is set to pass through the guide element until the front and rear end sections of the cone, and the length of the longitudinal through groove is set to: The through groove starts from the position (325a) of the front end of the cone corresponding to the middle waist, and ends at the position (325b) of the rear end of the cone corresponding to the middle waist. the

2. The low-dose insemination device for deep part of the uterus for pigs as claimed in claim 1, characterized in that, in addition, the outer tube (1) of the insemination device is configured with a telescopic locking device (4), which has the ability to be sleeved on the insemination device. A set through hole (42) on the fine core tube that can slide along the direction of the sperm core tube, the telescopic locking device has in turn a nozzle area at the front, a hand pushing area at the middle, and a handle at the rear Section, the outer diameter of the mouth of the mouth section (421) is slightly larger than the inner diameter of the mouth of the outer tube of the vasectomy, and several diameter-reducing gaps (4211) are distributed on the wall of the mouth section of the vasectomy. The outer surface of the tube wall of the handle section is provided with lines to avoid slipping, and the hand-push section between the handle section and the nozzle section is an intermediate baffle whose diameter is larger than the outer diameter of the outer tube of the insemination device; the handle of the telescopic locking device The section has a preset length, the insemination core tube is equipped with a scale scale, and the end of the handle section matches and combines with the scale on the insemination core tube. the

3. The deep uterine low-dose insemination instrument for pigs as claimed in claim 2, characterized in that, the insemination core tube (2) has a limit end structure (21), and the limit end structure is Set the round head liquid outlet cap (211) on the front port of the insemination core tube, and leave a liquid outlet hole (2111) communicated with the insemination core tube; or, the limit end structure is in the insemination core tube The front port is integrally formed with a round head liquid outlet, and there is a liquid outlet connected with the insemination core tube; the round head liquid outlet cap is a round or oval ball cap, and the maximum outer diameter of the round head liquid outlet cap is It is equivalent to the protruding caliber of the insemination core tube of the guiding element on the outer tube of the insemination device, and is larger than the inner diameter of the outer tube of the insemination device. the

4. The deep uterine low-dose insemination instrument for pigs according to any one of claims 1-3, characterized in that, the first reaming section of the guide element is composed of a cone front end section (322) and a front expansion section. The hole section (323a) is formed; the second reaming section of the guide element is composed of a cone rear end section (321) and a rear reaming section (323b); in the cone front end section of the guide element A reaming section is formed between the part and the cone rear end section, the maximum outer diameter of the reaming section is set to be slightly larger than the size of the cervix of the recipient, and the annular groove (324) is outside the guide element The surface is located at the position of the reaming section, and is arranged in the radial direction; or/and, the guide element has a central through hole (31), and the central through hole is set as a small and small hole diameter, along the rear end of the outer tube of the vasectomy The direction is the large hole, that is, the end where the central through hole is connected with the outer tube of the vasectomy is the assembly area (311) of the outer tube of the vasectomy, and the diameter of the assembly area of the outer tube of the vasectomy is slightly smaller than that of the outer tube of the vasectomy The outer diameter of the outer diameter is the diameter of the big head; the diameter of the small head is that the other end of the central through hole is the protruding section (312) of the insemination core tube, and the diameter of the protruding section of the insemination core tube is set to be slightly larger than the end of the insemination core tube The outer diameter of the head, but smaller than the diameter of the assembly area of the outer tube of the vasectomy device. the

5. An end protruding structure of an insemination device, comprising an insemination outer tube and an insemination core tube set in the insemination outer tube, the insemination outer tube and the insemination core tube are arranged to overlap Telescopic structure, that is, the outer tube of the insemination device has a through hole that allows the insemination core tube to pass through, and can allow the insemination core tube to extend and retract. It is characterized in that the guide element is fixedly installed on the front end of the insemination device outer tube , one end of the guiding element has a first reaming section, and the first reaming section is set at the extended end of the vas deferens core tube of the guiding element for widening the path and abutting against the cervix; in addition One end is the second reaming section, the second reaming section is arranged at the end where the guiding element is connected with the outer tube of the vasectomy device, and is used for widening the path when retreating; the first reaming section and the second reaming section Annular grooves are arranged between the parts; several longitudinal through grooves are evenly distributed on the outer surface of the guide element along its axial direction, and the longitudinal through grooves are set to pass through the guide element until the front and rear end regions of the cone; or, the The longitudinal through-slot is set to pass through the guiding element until the front and rear ends of the cone, and the length of the longitudinal through-slot is set as follows: the longitudinal through-slot starts at the front end of the cone at a position equivalent to the middle waist, and ends at the rear end of the cone The waist is equivalent to the position of the middle waist. the

6. The end protruding structure of the insemination device according to claim 5, characterized in that, the first reaming section of the guide element is composed of a cone front end section and a front reaming section; The second reaming section of the guide element is composed of a cone rear end section and a rear reaming section; a reaming section is formed between the cone front end section and the cone rear end section of the guide element, The maximum outer diameter of the reaming section is set to be slightly larger than the size of the cervix of the acceptor, and the annular groove is arranged on the outer surface of the guiding element at the position of the reaming section along the radial direction. the

7. The end protruding structure of the insemination device according to claim 6, characterized in that, the guide element has a central through hole, and the central through hole is set as a small or small hole diameter, along the rear end of the external tube of the insemination device The direction is the large hole, that is, the end where the central through hole is connected with the outer tube of the vasectomy is the assembly area of the outer tube of the vasectomy, and the diameter of the assembly area of the outer tube of the vasectomy is slightly smaller than the outer diameter of the outer tube of the vasectomy It is the diameter of the big head; the diameter of the small head is that the other end of the central through hole is the protruding area of the insemination core tube, and the diameter of the protruding area of the insemination core tube is set to be slightly larger than the outer diameter of the end of the insemination core tube, but It is smaller than the diameter of the assembly area of the outer tube of the vasectomy device. the

8. The end protruding structure of the insemination device according to claim 7, characterized in that, the setting of the central through hole of the guide element as a large and small diameter means that one end of the central through hole is a large diameter hole, and the other end is a large diameter hole. One end is a small: diameter through hole; or, the central through hole is a slightly tapered through hole. the

9. The end protruding structure of the insemination device according to claim 8, wherein the annular groove or the longitudinal through groove of the guide element is an arc-shaped groove, and each edge of the outer surface of the guide element is Arc chamfering, the tops of the front end section of the cone and the rear end section of the cone are round heads, and the intersection lines of the longitudinal through groove and the outer surface of the guide element are also arc chamfering. the

10. The end protruding structure of the insemination device according to claim 8, characterized in that, the annular groove and the longitudinal through groove of the guide element are arc-shaped grooves, and each edge of the outer surface of the guide element is It is arc chamfering, the tops of the front end section of the cone and the rear end section of the cone are round heads, and the intersecting lines between the longitudinal through groove and the outer surface of the guide element are also arc chamfering. the

11. The end protruding structure of the insemination device according to claim 9 or 10, characterized in that, the insemination core tube, wherein, there are liquid outlet holes arranged at the front end or both sides of the insemination core tube . the

12. The end protruding structure of the insemination device according to claim 9 or 10, characterized in that, the insemination core tube, wherein there are also liquid outlet holes arranged at the front end and both sides of the insemination core tube . the

13. The end protruding structure of the insemination device according to claim 9 or 10, characterized in that, the outer structure of the first reaming section and the second reaming section are set to be the same. the