Background technology
On gynecological clinic, vagina medicinal is that treatment colpitis is commonly used and effective means the most, and it is, by doser, external used medicine is directly sent into lesions position, and reaches the object for the treatment of.Be applicable to the doser of the gynaecology external-use drug of the types such as medicinal liquid, gel and mastic at present, generally be made up of cloth pencil, piston and push rod, the administrator of this structure is in Clinical practice, there is many deficiencies, such as: it is mostly a liquid outlet drug row by front end, although medicine can be sent to vagina depths, but easily in localized accumulated, drug distribution is uneven, can not act on large area lesions position fast and effectively, and then reduce utilization ratio of drug and therapeutic effect; It mostly is single use, although safety and sanitation, is finished namely to lose and causes certain waste of material, too increase treatment cost simultaneously.
Publication number is that the utility model of CN 203029814 U discloses a kind of gynecological administration device, it is made up of shell, piston and push rod, its housing have employed two-part structure, leading portion is storage cartridge case, back segment is syringe, and storage cartridge case has dosing holes, its phase administrator than ever uniformly, which employs loose structure, large to powder.But its deficiency existed is: first, when piston advances in storage cartridge case, medicine only can be discharged from the dosing holes being arranged in pistons front sides, thus how rear few before causing administration, and medicine still can not be avoided in localized accumulated can not to give full play to the deficiency of drug effect; Secondly, because medicine need be stored in cartridge case in advance, and the sidewall storing cartridge case is evenly equipped with multiple dosing holes, and liquid medicine is easy to leak to the external world before dosing techniques, causes drug waste.
Publication number is that the utility model of CN 2020113482 U discloses another kind of gynecological administration device, it is made up of piston, core bar, body and cloth pencil, cloth pencil is connected on body, its tail end is closed, sidewall has multiple dosing holes, after it adopts said structure, phase administrator than ever, its administration range is wider.But its weak point existed is, medicine is discharged by dosing holes by the air pressure that cloth pencil is provided by body and piston, first, because cloth pencil adopts loose structure, discharging from dosing holes of medicaments uniformity can not be ensured, be difficult to realize administration and expect object uniformly; Secondly, the air pressure that piston and body provide for cloth pencil easily gushes in advance from some dosing holes, and causes remaining medicine cannot to be discharged smoothly from cloth pencil, finally causes some drugs to residue in cloth pencil and is not used, cause drug waste.
Summary of the invention
The object of the present invention is to provide a kind of scientific structure design reasonable, convenient to use, safety and sanitation, use cost is low, administration is even, and drug residue is few, is conducive to medicine and acts on lesions position fully in time, thus improve utilization ratio of drug and therapeutic effect, reduce the gynecological administration device of drug waste.
Following technical scheme is adopted for realizing above-mentioned technical purpose the present invention:
A kind of gynecological administration device, it comprises:
Push away pencil, it forms a syringe construction by body, piston and push rod, its front end face has into medicine outlet hole, and the lateral wall of its leading section is fixed with an O type circle;
Trocar sheath, it is nested with and is pushing away outside pencil, and both are coaxial and can axial relative movement, is fixed with and the 2nd O type circle pushing away pencil slipper seal and coordinate inside its leading section;
Cloth pencil, its front end is provided with bottom, and it is placed on the middle front part that pushes away pencil and both are coaxial, and rear end is connected with trocar sheath forward end seal; Bottom it and sidewall be evenly equipped with dosing holes, bottom inside is provided with the spacing preiection guaranteeing to push away pencil front end and its maintenance gap; Cloth pencil inwall coordinates with an O type circle slipper seal, and cloth pencil and the interlayer pushed away between pencil are divided into two parts by an O type circle, and the sandwich portion on front side of an O type circle is called the first administration channel, and the sandwich portion of rear side is called the second administration channel; The inner tubal wall of cloth pencil front end has some connectivity slots, and when pushing away pencil front end and spacing preiection supports, the first administration channel is communicated with through connectivity slot with the second administration channel.
Described cloth pencil is single use, and for satisfied different patient exists the demand of individual variation, the cloth pencil that this gynecological administration device is equipped with has the plurality of specifications divided by length.
The operation principle of this gynecological administration device is: sucked by the gynaecology external-use drug of liquid, gel or paste in advance and push away in pencil; Cloth pencil is nested with is pushing away pencil from pushing away pencil front end, and cloth pencil tail end and trocar sheath are tightly connected, regulate cloth pencil and the relative axial position pushing away pencil, the spacing preiection pushing away pencil front end and cloth pencil bottom inside is supported, now the first administration channel is communicated with through connectivity slot with the second administration channel, and the first administration channel communicates with the medicine outlet hole that enters pushing away pencil front end; Hand-held trocar sheath or push away pencil rear portion cloth pencil is sent into patient intravaginal, after arrival desired location, slow promotion pushes away the push rod in pencil, the medicine pushed away in pencil is discharged through entering medicine outlet hole, and entering the first administration channel and the second administration channel, finally uniform on cloth pencil dosing holes even application is on vaginal wall; After pushing away the medicine emptying in pencil, cloth pencil is made to continue to be retained in intravaginal, due to when front step operation, the volume of the first administration channel is very little, the medicine of its internal residual can be ignored, therefore the hand-held pencil tail end that pushes away makes it move backward, is discharged by the medicine in the second administration channel through dosing holes, namely reach the object of almost being discharged completely by the medicine of this gynecological administration device inside, reduce residual to greatest extent; Finally cloth pencil is taken out from vagina, namely complete whole dosing techniques.
The present invention has following beneficial effect: it adopts porous drug row, and administration is even, and acting surface is large, avoids the localized accumulated of medicine, guarantees that medicine acts on lesions position fast timely, thus improve utilization ratio and the therapeutic effect of medicine; Due in administration process, only cloth pencil directly contacts with affected part, therefore it is single use, safety and sanitation, and push away pencil with trocar sheath and directly do not contact with affected part, in addition both structures are all enough simply convenient to cleaning, just can be recycled, reduce the treatment cost of gynaecopathia thus through thorough cleaning treatment; Its structural design comparatively science, the medicine pushed away in pencil can be discharged completely when push rod moves forward, push away pencil when moving backward, medicine most in interlayer can be discharged, and then avoid the excessive residual of gynecological administration device internal drug, reduce drug waste, and aforesaid operations is coherent smoothly, simple, patient can use voluntarily; Cloth pencil has the different specification of different lengths, can meet the demand of different patient.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of this gynecological administration device.
Fig. 2 is for pushing away pencil and trocar sheath combines schematic diagram.
Fig. 3 is for pushing away pencil and cloth pencil assembled sectional view.
Fig. 4 is trocar sheath and cloth pencil assembled sectional view.
Fig. 5 discharges schematic diagram for pushing away pencil Chinese medicine.
Fig. 6 discharges schematic diagram for pushing away medicine in pencil and cloth pencil mezzanine space.
Fig. 7 pushes away pencil and cloth pencil assembled sectional view in the second embodiment pushing away pencil.
Fig. 8 pushes away pencil Chinese medicine to discharge schematic diagram in the second embodiment pushing away pencil.
Fig. 9 pushes away medicine in pencil and cloth pencil mezzanine space in the second embodiment pushing away pencil to discharge schematic diagram.
Figure 10 is the structural representation of medicine draw-out device.
In figure, 1, cloth pencil, 101, bottom, 102, spacing preiection, 103, dosing holes, 104, connectivity slot, 2, trocar sheath, 201, 2nd O type circle, 202, handle pipe, 203, anti-slip veins, 3, push away pencil, 301, one O type circle, 302, body, 303, push rod, 304, enter medicine outlet hole, 305, piston, 306, spacing block plate, 307, air inlet duct, 308, pushing top spring, 309, mounting rod, 4, first administration channel, 5, second administration channel, 601, lid, 602, swivel plate, 603, top, 604, medicine discharging nozzle, 605, pit, 606, conduit.
Detailed description of the invention
Shown in Fig. 1, a kind of gynecological administration device disclosed by the invention, it is formed primarily of pushing away pencil 3, trocar sheath 2 and cloth pencil 1 three parts.
Shown in Fig. 2,3, the described pencil 3 that pushes away forms a syringe construction by body 302, the piston 305 being positioned at body 302 and the push rod 303 that is connected on rear side of piston 305, the front end face pushing away pencil 3 has into medicine outlet hole 304, and the lateral wall, leading section pushing away pencil 3 is fixed with an O type circle 301; Said structure is have employed owing to pushing away pencil 3, when utilizing push rod 303 to pull piston 305 to move backward, can the medicines such as liquid, gel or paste body shape be pushed away in pencil 3 through entering medicine outlet hole 304 suction, otherwise the medicine pushing away pencil 3 inside can be discharged through entering medicine outlet hole 304; A described O type circle 301 with push away pencil 3 and can adopt multiple fixed form, such as, can binding agent be utilized to be adhesively fixed both, also can open the mounting groove of a ring shape in the front end pushing away pencil 3 in advance, make the inner circle of an O type circle 301 be partially submerged in mounting groove, thus both are fixedly connected with.
Shown in Fig. 2, described trocar sheath 2 is nested with and is pushing away outside pencil 3, and both are coaxial, and can axial relative movement, is fixed with and the 2nd O type circle 201 pushing away pencil 3 slipper seal and coordinate inside the leading section of trocar sheath 3; 2nd O type circle 201 has multiple fixed form with trocar sheath 2, can with reference to an O type circle and the fixing means pushing away pencil 3.
Shown in Fig. 3,4, described cloth pencil 1 front end is provided with bottom 101 and rear end is open, and it is placed on the middle front part that pushes away pencil 3 and both are coaxial, and its rear end is connected with trocar sheath 2 forward end seal; The bottom 101 of cloth pencil 1 and sidewall are evenly equipped with dosing holes 103, the spacing preiection 102 guaranteeing to push away pencil 3 front end and its maintenance gap is provided with inside bottom 101, namely push away pencil 3 front end and spacing preiection 102 support after the bottom 101 cannot continued to cloth pencil 1 move, and still there is certain distance in the bottom 101 now pushing away pencil 3 front end and cloth pencil 1; The inwall of cloth pencil 1 coordinates with O type circle 301 slipper seal, cloth pencil 1 and the interlayer pushed away between pencil 3 are divided into two parts by an O type circle 301, for ease of describing, at this, sandwich portion be positioned on front side of an O type circle 301 is called the first administration channel 4, the sandwich portion be positioned on rear side of an O type circle 301 is called the second administration channel 5; The inner tubal wall of cloth pencil 1 front end has some connectivity slots 104 be recessed to form, when pushing away pencil 3 front end and spacing preiection 102 supports, the two ends of connectivity slot 104 lay respectively at the both sides, front and back of an O type circle 301, thus the first administration channel 4 is communicated with through connectivity slot 104 with the second administration channel 5.
The using method of this gynecological administration device is:
1. in advance the gynaecology external-use drug of liquid, gel or paste is pushed away in pencil 3 through entering medicine outlet hole 304 suction;
2. cloth pencil 1 is nested with is pushing away pencil 3 from pushing away pencil 3 front end, and cloth pencil 1 tail end and trocar sheath 2 are tightly connected, cloth pencil 1 and trocar sheath 2 is regulated to push away the position on pencil 3, the spacing preiection 102 pushed away inside the bottom 101 of pencil 3 front end and cloth pencil 1 is supported, now the first administration channel 4 is communicated with through connectivity slot 104 with the second administration channel 5, same hands, the first administration channel 4 communicates with the medicine outlet hole 304 that enters pushing away pencil 3 front end;
3. hand-held trocar sheath 2 or push away pencil 3 rear portion cloth pencil 1 is sent into patient's intravaginal, after arrival desired location, slow promotion pushes away the push rod 303 in pencil 3, as shown in Figure 5, the medicine pushed away in pencil 3 is discharged through entering medicine outlet hole 304, and entering the first administration channel 4 and the second administration channel 5, finally uniform on cloth pencil 1 dosing holes 103 even application is on vaginal wall;
4. after pushing away the medicine emptying in pencil 3, cloth pencil 1 is made to continue to be retained in intravaginal, due to when front step operation, the volume of the first administration channel 4 is very little (being only the space between the bottom 101 pushing away pencil 3 front end and cloth pencil 1), the medicine of its internal residual can be ignored, therefore as shown in Figure 6, hand-held pencil 3 tail end that pushes away orders about it and moves backward, move along with after an O type circle 104, medicine in second administration channel 5 is discharged through dosing holes 103, after aforementioned operation, the medicine of this gynecological administration device inside is almost discharged completely, reduce drug residue to greatest extent,
5. last cloth pencil 1 to be taken out from vagina, namely complete Gynecological drug administration operation; By cloth pencil 1 from trocar sheath 2 and push away pencil 3 and separate and abandon, to trocar sheath 2 with push away pencil 3 and carry out cleaning treatment, use in order to next time.
Because this gynecological administration device adopts porous drug row, administration is even, and acting surface is large, guarantees that medicine acts on lesions position fast timely, thus improves utilization ratio and the therapeutic effect of medicine; Its structural design comparatively science, the medicine pushed away in pencil 3 can be discharged completely when push rod 303 moves forward, push away pencil 3 when moving backward, medicine most in interlayer can be discharged, and then avoid the excessive residual of gynecological administration device internal drug, reduce drug waste, and its operation is coherent smoothly, simple, patient can use voluntarily.
Due in administration process, only cloth pencil 1 directly contacts with affected part, therefore it is single use, safety and sanitation, and push away pencil 3 with trocar sheath 2 and directly do not contact with affected part, in addition both structures are all enough simply convenient to cleaning, just can be recycled, reduce the treatment cost of gynaecopathia thus through thorough cleaning treatment.
Meanwhile, for satisfied different patient exists the demand of individual variation, the cloth pencil 1 that this gynecological administration device is equipped with has the plurality of specifications divided by length, and patient can carry out choice for use according to own situation, improves the suitability of this gynecological administration device thus.
This gynecological administration device is utilized to carry out in dosing techniques, trocar sheath 2 often needs to grasp, than trocar sheath 2 and cloth pencil 1 are connected and sealed as shown in Figure 4 time, being retained in vagina at cloth pencil 1 and will pushing away when pencil 3 pulls out etc. as shown in Figure 6, operate to more be convenient to grasp trocar sheath 2, as shown in Figure 4, described trocar sheath 2 rear is provided with a handle pipe 202 coaxial with it, this handle pipe 202 comparatively trocar sheath 2 is thick, handle pipe 202 and trocar sheath 2 adopt tapering transition and into a single integrated structure, and the outer wall of handle pipe 202 is provided with anti-slip veins 203.
This gynecological administration device in use, when the spacing preiection 102 pushing away the bottom 101 of pencil 3 front end and cloth pencil 1 is supported, there is a clearance space bottom 101 pushing away pencil 3 front end and cloth pencil 1, this clearance space is subordinate to the first administration channel 4, for making to push away, medicine in pencil 3 is unobstructed enters the first administration channel 4 for it, but the medicinal liquid after administration completes in this clearance space cannot be discharged through dosing holes 103, therefore in order to reduce dosing techniques complete after drug residue in gynecological administration device, therefore under in guarantee, it has good medicine handling capacity situation, this clearance space volume is the smaller the better.
For this reason, as shown in Fig. 3,5, in this gynecological administration device, the described front end pushing away pencil 3 adopts spherical structure, the bottom of described cloth pencil 1 front end also adopts spherical structure, and when the spacing preiection 102 of the bottom 101 pushing away pencil 3 front end and cloth pencil 1 is supported, the centre of sphere of aforesaid two spherical structures overlaps, thus, the uniform clearance space of a thickness is formed on the bottom 101 pushing away pencil 3 front end and cloth pencil 1.
Meanwhile, adopt spherical structure owing to pushing away pencil 3 front end, in order to ensure that the medicine pushed away in pencil 3 can be released by piston 305 completely, piston 305 front end face also should adopt and the spherical structure pushing away pencil 3 front end and coordinate.
Shown in Fig. 5, this gynecological administration device is in administration process, push away medicine that pencil 3 discharges be by the first administration channel 4 and the second administration channel 5 by medicament distribution to dosing holes 103 uniform on cloth pencil 1, medicine in the process in the first administration channel 4 and the second administration channel 5 has certain pressure, necessary anti-thrust pencil 3 and cloth pencil 1 oppositely movement under this pressure effect, just can ensure carrying out smoothly of this operation link.The present invention realizes above-mentioned technical purpose by the damping action of an O type circle 301 and the 2nd O type circle 201, namely the damping action that produces with the frictional force pushing away pencil 3 outer wall with cloth pencil 1 inwall frictional force, the 2nd O type circle 201 of an O type circle 301, can avoid pushing away pencil 3 and cloth pencil 1 oppositely movement during the drug efflux pushing away in pencil 3.
In the present invention, trocar sheath 2 front end is connected with cloth pencil 1 back-end sealing, for realizing above-mentioned technical purpose, both connect by inserting mode, also can be as shown in Figure 4, threadedly connect, but in administration process, do not cause contusion in order to ensureing to vagina, described trocar sheath 2 should be level and smooth with cloth pencil 1 junction lateral surface.
Shown in Fig. 6, in the use procedure of this gynecological administration device, when pushing away the medicine in pencil 3 completely after entering medicine outlet hole 304 discharge, cloth pencil 1 need be retained in original position, and it is overall outwards mobile to push away pencil 3, is discharged by the medicine in the second administration channel 5 thus.In this operating process, the space of the first administration channel 4 becomes large gradually and forms negative pressure, translational speed as pushed away pencil 3 is slower, then air can be passed through dosing holes 103 and enters the first administration channel 4, make to push away pencil 3 and can continue outside movement, and the medicine sprayed can not be sucked back in the first administration channel 4 by negative pressure; If but push away pencil 3 outwards mobile very fast time, the negative pressure formed in the first administration channel 4 is comparatively large, then likely sucked back in the first administration channel 4 by the some drugs sprayed.
For overcoming the problems referred to above, the present invention has done following improvement to the structure pushing away pencil 3: as shown in Figure 7, the front end of described push rod 303 is provided with a mounting rod 309, piston 305 to be nested with on mounting rod 309 and can along its slide anteroposterior, the front end of mounting rod 309 is provided with the spacing block plate 306 preventing piston 305 slippage, piston 305 rear is provided with the pushing top spring 308 ordering about and be close to spacing block plate 306 on front side of it, mounting rod 309 has an air inlet duct 307, air inlet duct 307 is greater than the axial dimension of piston 305 pushing away pencil 3 size axially; When piston 305 is close to spacing block plate 306, piston 305 is by space partition before and after it, and when piston 305 has gap with spacing block plate 306, the space before and after piston 305 is communicated with through air inlet duct 307; Described push away pencil 3 front end enter the dead ahead that medicine outlet hole 304 is positioned at spacing block plate 306, and enter medicine outlet hole 304 diameter and be greater than spacing block plate 306 diameter.
For the thrust that piston 305 provides, above-mentioned pushing top spring 308 need ensure that piston 305 is when being close to spacing block plate 306, the medicine pushed away in pencil 3 is entered the first administration channel 4 and the second administration channel 5, and orders about medicine and discharge from dosing holes 103.
Push away after pencil adopts above-mentioned design, shown in Fig. 8,9, during driven forward push rod 303, piston 305 moves forward with it, and order about the medicine pushed away in pencil 3 and enter in the first administration channel 4 and the second administration channel 5, last medicine is discharged through dosing holes 103, when piston 305 move to push away pencil 3 foremost time, push away medicine in pencil 3 by complete emptying; Pencil 3 will be pushed away when extracting out from cloth pencil 1, with thumb press push rod 303 tail end, because piston 305 cannot continue to move forward, but the thrust that mounting rod 309 can overcome pushing top spring 308 continues to move forward, what spacing block plate 306 is moved to push away pencil 3 front end enters in medicine outlet hole 304, thus make to form gap between piston 305 and spacing block plate 306, the air inlet duct 307 of the space now before and after piston 305 on mounting rod 309 is communicated with; Thus cloth pencil 1 keep original position and push away pencil 3 move backward time, first administration channel 4 is communicated with ambient atmosphere through entering medicine outlet hole 304, air slot 307 and pushing away pencil 3, thus can avoid forming negative pressure in the first administration channel 4, namely prevent in sucked back first administration channel 4 of medicine of having discharged.
Because the pencil that pushes away of this gynecological administration device can be recycled, thus each before carrying out administration, and pushing away pencil 3 Sucked medicine is pre action, and for the ease of pushing away pencil 3 Sucked medicine, it is equipped with medicine draw-out device.
Shown in Figure 10, described medicine draw-out device comprises a lid 601, and lid 601 medial wall is provided with screw thread, and it is connected with the bottle sealing of medicament reservoir; One is provided with for holding the pit 605 pushing away pencil 3 leading section outside the top 603 of lid 601, be provided with in the middle part of this pit 605 can with push away pencil 3 enter the medicine discharging nozzle 604 that medicine outlet hole 304 grafting coordinates, the inside top of lid 601 is then provided with the conduit 606 be communicated with medicine discharging nozzle 604; Separately be provided with outside the top 603 of described lid 601 once the fixing swivel plate 602 of rotating shaft, swivel plate 602 rotates pit 605 capping above pit 605.
Medicine draw-out device is connected on the bottleneck of the container holding medicine, conduit 606 stretches to container bottom, push away pencil 3 when extracting medicine, swivel plate 602 is rotated to side, guarantee that pit 605 exposes completely, the front end pushing away pencil 3 is inserted in pit 605, and the medicine outlet hole 304 that enters pushing away pencil 3 front end coordinates with medicine discharging nozzle 604 grafting just simultaneously, push rod 303 driven plunger 305 is utilized to move backward, medicine can be inhaled into and push away in pencil 3, suck enough wait pushing away medicine in pencil 3, pencil 3 will be pushed away extract, the position of swivel plate 602 is regulated to guarantee that it is by pit 605 capping, medicine is avoided to be subject to extraneous germ contamination, it greatly improves and push away the operating efficiency that pencil 3 draws medicine.
Due to the existence of pit 605, be not exposed to the external world when can guarantee that medicine discharging nozzle 604 is flat on the one hand, and ensure drug effect, then can play certain positioning action on the other hand, make can grafting coordinate fast with medicine discharging nozzle 604 into medicine outlet hole 304.