CN110448791A - Rotary gynecological medicine applier - Google Patents

Abstract

The present invention relates to a kind of medical supplies, in particular disclose a kind of rotary gynecological medicine applier, by pencil assembly and inject component and constitute；Pencil assembly includes casing, piston, and sleeve side walls are equipped with side opening, and rear end is equipped with flange；Pistons front sides are fixed with stud, are equipped with blind hole on rear side of piston, stud can only reversely rotate pencil assembly in the initial state；Injecting component includes placement set, guide holder and push rod；Placement set rear portion is placement hole, is leadout hole on front side of placement hole, and placement is put on equipped with retaining mechanism, and guide holder is equipped with plug division, threaded hole；Push rod is threadedly engaged with threaded hole, and the front end of push rod is equipped with plug, and putting back-end, which is fixed with, turns round handle and press handle；Push press handle push rod stud will be driven to rotate in the forward direction forward when guide holder position is kept fixed.Its is reasonable in design, convenient to use, can rotatably be administered, and increases drug and affected part contact area, improves drug efficiency efficiency, has wide promotion prospect.

Description

Rotary gynecological medicine applier

Technical field

The present invention relates to a kind of medical supplies more particularly to a kind of drug delivery devices for gynecopathy therapeutic.

Background technique

Clinically, topical agent is placed in the critical treatment hand that intravaginal is various gynecological diseases especially colpitis Section, it is easy to operate, directly act on affected part and quick, and then received by many patients, presently the most common gynaecology Topical agent is gelling agent, is placed in patient's intravaginal by drug delivery device when in use.Existing drug delivery device is usually by piston Medicament is discharged from front end, by the dual limitation of this unreasonable structural design and affected part physilogical characteristics, gelling agent is caused to be set It when patient's vagina, can not tend to uniformly be distributed on vaginal wall at all, but keep bulk for a long time, be contacted with affected part Area is extremely limited and cannot be rapidly performed by dissolution and is absorbed.At the same time, since patient medication focuses mostly on during sleep, Body is in stationary state, and gelling agent is also only distributed in vagina side after being dissolved, this factor further results in gelling agent can not It is come into full contact with affected part, reduces gynecopathy therapeutic effect.In the prior art, also having to be no lack of has technical solution to use Sleeve side walls open up the mode of side opening, in order to which medicament can be discharged from casing surrounding, although this structure theoretically can Improve the deficiency of convenient administration device front end drug row, but does not ensure that each side opening whole process drug row in entire bolus infusion processes, and The medicament being discharged through side opening can not uniformly be coated in patient part, and the effect generated in practical clinical is not significant, And then not by wide popularization and application.

Summary of the invention

To overcome above-mentioned technical problem, the present invention provides one kind, and medicament uniformly can be discharged, and makes medicine by rotating Agent tends to uniformly coat on the vaginal wall, thus increases medicament and affected part contact area, improves the rotation of drug absorption efficiency Formula gynecological medicine applier.

To realize the above-mentioned technical purpose, the present invention adopts the following technical scheme:

A kind of rotary gynecological medicine applier by pencil assembly and is injected component and is constituted；The pencil assembly includes set Pipe, the piston in casing, it is characterised in that: the closing of described sleeve pipe front end, middle leading portion side wall are evenly equipped with several side openings, rear end Equipped with flange；The pistons front sides are fixed with stud, are formed with a toroidal cavity between stud outer wall and internal surface of sleeve pipe, after piston Side is equipped with non-circular blind hole；The inner sidewall of leading portion is equipped with that front and back extends and inboard end is contacted with stud outer wall the in casing One partition, the stud outer wall are equipped with the second partition that front and back extends and outboard end is contacted with internal surface of sleeve pipe；Cannula cavity Pistons front sides area filling has gelling agent, and outside of sleeve is coated with the plastic foil for covering side opening；Before stud front end and casing When end is supported, the rear end of piston and first partition is exactly in contact with, and first partition respectively in axial direction will be annular with second partition at this time Cavity is separated；In the initial state, the rear end of first partition and the front end of second partition recline pencil assembly, so that Stud can only be reversely rotated in the case where sleeve position is fixed；The component of injecting includes placement set, guide holder and push rod； Placement set rear portion is placement hole cylindrical and can accommodating flange, passes through and leads for casing to be small compared with its diameter on front side of placement hole Portal, the thrust bearing for supporting flange leading flank is installed on the annular anterior wall of placement hole；Placement, which puts on to be equipped with, to be had Locking, unlock two states retaining mechanism, lock state setting of casing and placement set can not relative rotation, it is not right under unlocked state The relative rotation of casing and placement set, which is constituted, to be hindered；The guide holder is equipped with round table-like plug division, will pass through before and after guide holder The threaded hole worn；When guide holder is combined with placement set, the rear end of placement hole is inserted into plug division, and guide holder and placement set can at this time Relative rotation and monnolithic case is cylindrical, flange is large enough to hold in the space between plug division and thrust bearing；The push rod It is equipped with guide thread, passes through from threaded hole and is threadedly engaged with threaded hole, the front end of push rod is equipped with can be with blind hole grafting Combined plug, putting back-end are fixed with torsion handle, turn round the press handle for being equipped on rear side of handle and being rotatablely connected with push rod；When guide holder position It is kept fixed and after plug combines with blind hole, pushes press handle forward, push rod will drive stud to rotate in the forward direction.

The operation principle and using method of this rotary gynecological medicine applier are as follows:

In use, pencil assembly is inserted into placement set, it is ensured that casing extends to placement set front, flange position by leadout hole In in placement hole；By in the blind hole on rear side of the plug insertion piston of push rod front end, the axial position of guide holder is adjusted by rotation, Realize that placement covers the combination with guide holder in the rear end for making the plug division of guide holder be inserted into placement hole；The plastics that will be coated on casing Film is torn, and is held placement set and is avoided the two from being detached from guide holder, casing is placed in patient's intravaginal；Push press handle forward, one Aspect, since casing is placed set restriction and can not move forward, and piston will be moved forward in casing and be driven on front side of it Gelling agent from side opening be discharged, on the other hand, due to guide holder and placement set held jointly and can not relative rotation, push rod is forward Mobile process will drive stud to rotate in the forward direction under guide thread and the guiding of screw hole, in first partition and second partition Under cooperation, casing will can reduce the rotational resistance of casing with stud synchronous rotary, ejection bearing；Push press handle forward as a result, During, piston moves forward the discharge gelling agent for keeping all side openings lasting, and casing, which then passes through rotation, makes the solidifying of discharge The more uniform distribution of jelly is applied on vaginal wall；When push rod can not move forward, illustrate that stud front end has arrived at casing Front bottom end only retains gelling agent in toroidal cavity at this time, and retaining mechanism, which is adjusted to lock state, makes casing and placement set nothing Method relative rotation individually holds placement set rotation and turns round handle, makes push rod that stud be driven to reversely rotate in casing, second partition is by stud The band trend first partition other side rotates, successively by the gelling agent discharge in toroidal cavity until emptying；Finally by pencil assembly It is extracted out from patient's body, that is, completes entire dosing techniques.

This rotary gynecological medicine applier compared with prior art, has the following technical effect that

During the administration, the discharge gelling agent that all side openings can continue, and casing makes the solidifying of discharge by rotation The more uniform distribution of jelly is applied on vaginal wall, improves the contact area in gelling agent and affected part, it is straight to be more advantageous to drug It connects and acts on affected part and be quickly absorbed and used；Simultaneously as gelling agent is discharged through multiple uniformly distributed side openings, the gelling agent of discharge In cotton-shaped, compare previous bulk and be more favorable for dissolving, and then improve drug absorption efficiency；Since the function of pencil assembly is It packs gelling agent and gelling agent is released to patient's body, therefore it should be processed using disposable requirement, and push away Note component is used to provide for pencil assembly discharge gelling agent needed for power, without with patient contact, therefore it can be recycled, i.e., Injecting component can cooperate multiple pencil assemblies to be recycled, disposable pencil assembly because of no setting is required piston rod, be not necessarily to Grip portions are set and can accordingly shorten length, more existing once daily device structure is more simple, and cost is cheaper, so that This rotary gynecological medicine applier is although complicated integral structure, and averagely use cost is not above even lower than existing one every time Secondary property delivery device.When in use, pencil assembly is combined with component is injected, and pencil assembly is placed in patient's intravaginal, Hand-held placement set pushes ahead press handle with guide holder and rotary administration can be realized, and finally individually holds placement and covers and rotate torsion handle Gelling agent in casing can be emptied, easy to operate, medicament residual is few in casing.Further, since during the administration, It need to only be operated to component is injected, injecting component can be designed based on the shape convenient for gripping, grasping, compared to previous one Secondary property delivery device, this rotary gynecological medicine applier are more convenient for being manually operated.In conclusion this rotary gynecological medicine applier knot Structure design is rationally, convenient to use, can rotatably be administered, increase drug and affected part contact area, improves drug effect Rate efficiency has wide promotion prospect.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of 1 Chinese medicine pipe assembly of embodiment.

Fig. 2 is the decomposition texture schematic diagram of 1 Chinese medicine pipe assembly of embodiment.

Fig. 3 is the structural schematic diagram after 1 Chinese medicine pipe assembly cross-section of embodiment.

Fig. 4 is the sectional view of A-A in Fig. 3.

Fig. 5 is the structural schematic diagram that component is injected in embodiment 1.

Fig. 6 is 1 Chinese medicine pipe assembly of embodiment and the combining structure schematic diagram for injecting component.

Fig. 7 is that press handle is pushed to realize the schematic diagram being rotatably administered in embodiment 1 forward.

Fig. 8 is that rotation turns round handle for the gelling agent discharge in toroidal cavity until the schematic diagram emptied in embodiment 1.

Fig. 9 is the structural schematic diagram of retaining mechanism in embodiment 1.

Figure 10 is the structural schematic diagram of stud, piston and second partition in embodiment 1.

Figure 11 is the cooperation schematic diagram of stud and casing in embodiment 2.

1, first partition, 2, second partition, 3, stud, 4, flange, 5, blind hole, 6, piston, 7, casing, 8, side opening, 9, modeling Expect film, 10, toroidal cavity, 11, press handle, 12, turn round handle, 13, push rod, 14, plug, 15, plug division, 16, guide holder, 17, lead To screw thread, 18, placement set, 19, leadout hole, 20, retaining mechanism, 21, thrust bearing, 22, placement hole, 23, positioning pin, 24, peace Fill hole, 25, button, 26, reset spring, 27, limited step, 28, barb, 29, inner hole, 30, exit orifice.

Specific embodiment

Embodiment 1

Referring to shown in Fig. 6, rotary gynecological medicine applier disclosed by the invention, by including pencil assembly and injecting component two Part is constituted；

Wherein, described picture 1-4, the pencil assembly includes casing 7, in casing 7 with it is slidingly sealed cooperation Piston 6, described 7 front end of the casing closing, if middle leading portion side wall is evenly equipped with the side opening 8 that 7 inner cavity of capable person's casing is in communication with the outside, Rear end is equipped with cap along the flange 4 of shape；Be fixed with stud 3 on front side of the piston 6, stud 3, piston 6,7 three of casing center Overlapping of axles are formed with a toroidal cavity 10 between 7 inner wall of 3 outer wall of stud and casing, are equipped with non-circular blind hole 5 on rear side of piston 6； The inner sidewall of leading portion is equipped with the first partition 1 that front and back extends and inboard end is contacted with 3 outer wall of stud, the column in casing 7 3 outer wall of bolt is equipped with the second partition 2 that front and back extends and outboard end is contacted with 7 inner wall of casing；6 front side of piston of 7 inner cavity of casing Area filling has gelling agent, the plastic foil 9 for covering side opening 8 is coated on the outside of casing 7, plastic foil 9 is for preventing gelling agent from letting out Dew；When 3 front end of stud and 7 front inner wall of casing are supported, piston 6 and the rear end of first partition 1 are exactly in contact with, at this time first every Plate 1 separates toroidal cavity 10 along axial direction, and second partition 2 equally also separates toroidal cavity 10 along axial direction；The pencil is total At in the initial state i.e. before use, the rear end of first partition 1 and the front end of second partition 2 recline, so that stud 3 exists It can only rotate, and can not rotate along the direction b along the direction a in the case that 7 position of casing is fixed, i.e., can only reversely rotate, and can not It rotates in the forward direction；

Wherein, as viewed in figures 5-8, the component of injecting includes placement set 18, guide holder 16 and push rod 13；Described Placement covers 18 rear portions for placement hole 22 cylindrical and can accommodating flange 4, to be small compared with its diameter and for set on front side of placement hole 22 Pipe 7 passes through leadout hole 19, and 19 diameter of leadout hole is less than 4 outer diameter of flange of casing 7, is installed on the annular anterior wall of placement hole 22 For supporting the thrust bearing 21 of 4 leading flank of flange, the centre bore internal diameter of thrust bearing 21 should be greater than the outer diameter of casing 7；It is described Placement set 18 be equipped with locking, unlock two states retaining mechanism 20, lock state setting of casing 7 and placement set 18 nothings Method relative rotation, retaining mechanism 20 does not constitute the relative rotation of casing 7 and placement set 18 and hinders under unlocked state, retaining mechanism 20 two kinds of working conditions can artificially be adjusted；The guide holder 16 be equipped with round table-like plug division 15, guide holder 16 with When placement 18 combination of set, the rear end of placement hole 22 is inserted into plug division 15, and guide holder 16 and placement set 18 can relative rotation at this time And monnolithic case is cylindrical, the flange 4 of 7 rear end of casing is large enough to hold in the space between plug division 15 and thrust bearing 21；It leads It is equipped with to 16 axle center of seat by its perforative threaded hole；The push rod 13 is equipped with guide thread 17, from guide holder 16 Pass through in threaded hole and be threadedly engaged with threaded hole, the front end of push rod 13 is equipped with a plug 14, the plug 14 be used for after piston 6 After 5 grafting of blind hole of side is combined and is combined plug 14 and blind hole 5 can not relative rotation, the rear end of push rod 13 is fixed with a torsion handle 12, handle 12 is turned round in rotation can drive push rod 13 to rotate, and the press handle 11 being rotatablely connected with push rod 13 is equipped on rear side of rotating handle；Work as guiding When 16 positions of seat are kept fixed and the plug 14 of push rod 13 is combined with the blind hole 5 of 6 rear side of piston, press handle 11 is pushed forward, is pushed away Bar 13 will drive stud 3 to rotate in the forward direction during moving forward under the guiding of guide thread 17.

The working principle of this rotary gynecological medicine applier are as follows:

Referring to shown in Fig. 1,5,6, it is forwardly inserted in use, pencil assembly is covered 18 rear sides by placement, it is ensured that casing 7 is by leading Portal 19 extend to placement set 18 front, flange 4 then be located at placement hole 22 in；The plug 14 of 13 front end of push rod is inserted into piston 6 In the blind hole 5 of rear side, the axial position of guide holder 16 is adjusted by rotating, and the plug division 15 of guide holder 16 is made to be inserted into placement hole Realize the combination of guide holder 16 and placement set 18 in 22 rear end；As shown in fig. 7, the plastic foil 9 coated on casing 7 is torn, Hand-held placement set 18 makes the two maintain assembled state with guide holder 16, and casing 7 is placed in patient's intravaginal；Press handle is pushed forward 11, on the one hand, limit and can not move forward since casing 7 is placed set 18, piston 6 and stud 3 are by driving in push rod 13 Under moved forward in casing 7 and drive gelling agent from side opening 8 be discharged, on the other hand, due to guide holder 16 and placement set 18 quilts Common hold and can not relative rotation, the process that push rod 13 moves forward will drive under guide thread 17 and the guiding of screw hole Stud 3 rotates in the forward direction, but first partition 1 does not allow for stud 3 individually to rotate in the forward direction with the cooperation of second partition 2, therefore casing 7 Can be with 3 synchronous rotary of stud, ejection bearing can reduce the rotational resistance of casing 7；As a result, in the process for pushing press handle 11 forward In, piston 6 can move forward in casing 7, the lasting discharge gelling agent of all side openings 8, while casing 7 will do it rotation Turn, realizes that rotary administration, the distribution for keeping the gelling agent of discharge more uniform are applied on vaginal wall；As shown in figure 8, when pushing away When bar 13 can not move forward, illustrate that 3 front end of stud has arrived at the front bottom end of casing 7, at this time only shape between casing 7 and stud 3 At toroidal cavity 10 in retain gelling agent, retaining mechanism 20, which is adjusted to lock state, makes casing 7 18 can not phase with placement set To rotation, individually holds placement set 18 and rotate and turn round handle 12, make push rod 13 that stud 3 be driven to reversely rotate in casing 7, second partition 2 under the drive of stud 3 from a side of first partition 1 to the other side of first partition 1 rotate, successively will be in toroidal cavity 10 Gelling agent discharge until empty；Pencil assembly is extracted out from patient's body finally, that is, completes the whole behaviour being rotatably administered Make；During rotation turns round handle 12 and stud 3 is driven to reversely rotate, only placement set 18 is held, and guide holder 16 then may be used It is rotated with push rod 13, is hindered so that guide holder 16 is not constituted the rotation of push rod 13.

In above-mentioned rotary gynecological medicine applier, since the function of pencil assembly is packaging gelling agent and by gelling agent It is released to patient's body, therefore it should be processed using disposable requirement, and injects component for mentioning for pencil assembly For the power needed for being administered, without with patient contact, therefore it can be recycled, and injects component in clinical application and should cooperate for one Multiple pencil assemblies are recycled.

As shown in Figure 7,8, this rotary gynecological medicine applier in clinical application, all side openings 8 during the administration The discharge gelling agent that can continue, and casing 7 can rotate to make the more uniform distribution of gelling agent being discharged, be applied to yin On road wall, the contact area in gelling agent and affected part is improved, drug is more advantageous to and directly acts on affected part and be quickly absorbed benefit With；Simultaneously as gelling agent is discharged through multiple uniformly distributed side openings 8, the gelling agent of discharge compares previous bulk more in cotton-shaped Conducive to dissolution, and then improve drug absorption efficiency.

In this rotary gynecological medicine applier, due to disposable pencil assembly no setting is required individual piston rod And structure is simpler, no setting is required grip portions and can accordingly shorten length, more existing once daily device is easier to make, Cost is also cheaper, so that this rotary gynecological medicine applier is although complicated integral structure, the use cost that is averaged every time is simultaneously Not higher than even lower than existing once daily device.

Referring to shown in Fig. 7,8, this rotary gynecological medicine applier when in use, by pencil assembly and injects component and carries out group Close, and pencil assembly be placed in patient's intravaginal, hold placement set 18 and guide holder 16 and push ahead press handle 11 can be real Now rotary administration, the gelling agent in casing 7 can be emptied by finally individually holding placement set 18 and rotating torsion handle 12, easy to operate Fast, medicament residual is few in casing 7；Further, since during the administration, need to only be operated to component is injected, inject component It can be designed based on the shape convenient for gripping, grasping, compared to previous once daily device, this rotary gynecological medicine applier It is more convenient for being manually operated.

As shown in figure 4, in the foregoing written description, for the rotation of stud 3 referred to " rotating in the forward direction " and " reverse rotation " it Point, in contrast so-called " rotating in the forward direction " and " reverse rotation " is, it is only for convenient for structure elaboration to rotation side To setting；When being in original state due to pencil assembly, the rear end of first partition 1 and the front end of second partition 2 are pasted It leans on, so that stud 3 can only be rotated along the direction a in the case where 7 position of casing is fixed, will be defined as to the rotation in the direction a " reversed Rotation ", the b direction opposite with " reverse rotation " steering is rotated as " rotating in the forward direction "；Due to this rotary Gynecological drug administration When device is implemented, there are two types of selections for the relative position tool of first partition 1 and second partition 2, therefore in different embodiment party " rotating in the forward direction " in formula may not practical direction of rotation it is consistent.

Referring to shown in Fig. 6,7,8, this rotary gynecological medicine applier when in use, needs pencil assembly and injects component dimension Hold assembled state, on the one hand, placement set 18 and guide holder 16 can be made by way of holding placement set 18 jointly with guide holder 16 Without departing from, and pencil assembly is placed set 18 and the restriction of guide holder 16 and will not be detached from；On the other hand, to this rotary woman When section's drug delivery device is implemented, can the fit dimension of blind hole 5 of 6 rear side of plug 14 to 13 front end of push rod and piston adjust Examination can generate frictional resistance appropriate both after combining plug 14 with 5 grafting of blind hole to prevent the two from being detached from, thus more have Conducive to pencil assembly and inject component maintenance assembled state.

Referring to shown in Figure 10, in this rotary gynecological medicine applier, in order to make stud 3, second partition 2 and piston 6 Structure easily facilitate processing and fabricating, manufacturing cost is cheaper, in favor of pencil assembly be more suitable for it is disposable, it is described Stud 3 and second partition 2 are integrally formed, and 3 inner hollow of stud, the piston 6 in a ring, is placed on the rear end of stud 3 Portion and the two is sealedly and fixedly connected；The blind hole 5 is provided with the wall portion of 3 tail end of stud.

Referring to shown in Fig. 7, in clinical use, administration process middle sleeve 7 is able to carry out this rotary gynecological medicine applier Rotation, during piston 6 is moved to stroke terminal by initial position, the circle number of push rod 13 and 16 relative rotation of guide holder should be 1- The circle number that 3 circles, i.e. administration process middle sleeve 7 rotate is 1-3 circle；It on the one hand can guarantee that gelling agent is uniformly discharged and dissipates as a result, Cloth is smeared in affected part and by the casing 7 of rotation, and on the other hand, 7 rotating cycle of casing is suitable for being unlikely to cause affected part Injury, patient will not feel like oneself.It is carried out in implementation process to this rotary gynecological medicine applier, according to 6 stroke pair of piston The screw pitch of guide thread 17 is debugged, and is to be easily achieved piston 6 to be moved to stroke terminal process middle sleeve 7 by initial position Rotation 1-3 encloses this technical requirements.It is rotated further, since piston 6 is moved to stroke terminal process middle sleeve 7 by initial position 1-3 circle, guide thread 17 certainly will have biggish screw pitch, push press handle 11 that push rod 13 is driven to move forward and effortless.

Referring to shown in Fig. 5,7,8, in above-mentioned rotary gynecological medicine applier, placement set 18 is equipped with a retaining mechanism 20, which has two kinds of lock state, unlocked state working conditions, in the early period of dosing techniques, retaining mechanism 20 When in the unlocked state, the relative rotation of casing 7 and placement set 18 do not constituted and hindered, to guarantee that casing 7 is able to carry out rotation Turn, realizes rotary administration；And after 3 front end of stud reaches 7 front bottom end of casing, retaining mechanism 20 is artificially adjusted to locking State, at this time casing 7 and placement set 18 can not relative rotation, turning round handle 12 by rotation can drive stud 3 anti-in casing 7 indirectly To rotation, by the gelling agent discharge in toroidal cavity 10 until emptying；Above-mentioned setting purpose based on retaining mechanism 20, is adopted There are numerous embodiments, for example lock screw can be used with the prior art etc., but in order to make dosing techniques can more easily It completes, retaining mechanism 20 is preferably using such as flowering structure:

As shown in figure 9, the retaining mechanism 20 includes one being provided on placement set 18 and hanging down with leadout hole 19 and communicate Mounting hole 24, mounting hole 24 is interior to be equipped with the positioning pin 23 that can be floated up and down but not be detached from mounting hole 24, sets in mounting hole 24 There is the reset spring 26 for driving positioning pin 23 to be moved upward to reset state, the upper end of positioning pin 23 is equipped with button 25, button 25 Protrude from the outer surface of placement set 18；When positioning pin 23 is in initial position, the rotation of casing 7 is not constituted and hindered, that is, locked Mechanism 20 is in the unlocked state；When artificially pressing lower button 25,23 lower end of positioning pin is supported with casing 7, so as to prevent casing 7 18 relative rotation are covered with placement, i.e. retaining mechanism 20 is in the lock state.

After retaining mechanism 20 is using above-mentioned design, have the function of restoring unlocked state automatically, before dosing techniques Button 25 without operating on it, only when handle 12 is turned round in rotation, is pressed while holding placement set 18, can will be locked by the phase Mechanism 20 is adjusted to lock state, easy to operate, holds placement set 18 and by lower button 25 with can be operated with one hand.

Embodiment 2

Referring to shown in Fig. 8, rotary gynecological medicine applier disclosed in embodiment 1 in clinical application, when 3 front end of stud Through reach casing 7 front bottom end after, need by rotation turn round handle 12 drive stud 3 reversely rotate, with by second partition 2 with First partition 1 empties the gelling agent in toroidal cavity 10, during stud 3 reversely rotates, stud 3 should be avoided and move back It is dynamic, gap is formed to prevent between 3 front end of stud and casing 7, between 6 front side of piston and 1 rear end of first partition, is such as formed above-mentioned Gap, toroidal cavity 10 will be unable to be separated by first partition 1 and second partition 2, by it is aforementioned rotation stud 3 in the way of without Method realizes the technical purpose for emptying 10 inner gel agent of toroidal cavity；In order to avoid during stud 3 and 7 relative rotation of casing to After move, the present embodiment is on the structure basis of rotary gynecological medicine applier disclosed in embodiment 1, has and further changes Into:

As shown in figure 11, the 7 front inner wall the center point of casing is provided with a check card hole, and 3 front end of stud is set There is a claw；When 3 front end of stud and 7 front end of casing, which are supported, to be contacted, the claw is just inserted into check card hole, this rear claw With check card hole only can relative rotation, thus can prevent stud 3 in rotary course from moving backward；The check card hole and claw Using the prior art, that is, implementable, for example, the check card hole exit orifice 30 that can be provided with 7 front inner wall surface of casing by one and One inner hole 29 being provided with inside 7 front end of casing is constituted, and inner hole 29 makes greatly the two form a limit than 30 diameter of exit orifice Step 27；The claw is made of the barb 28 of two elastically deformables, after two barbs 28 are inserted into inner hole 29, by limiting stand Rank 27 limits and can not extract out, but barb 28 can be rotated in inner hole 29.

After rotary gynecological medicine applier uses above-mentioned design, when 3 front end of stud has arrived at the front bottom end of casing 7 Afterwards, check card hole can lock stud 3 and casing 7 with claw so that it is both above-mentioned only can relative rotation and can not be axial It is mobile, it thus can avoid exempting to move backward during stud 3 and 7 relative rotation of casing.

Claims (8)

1. a kind of rotary gynecological medicine applier, by pencil assembly and injects component and constitute；The pencil assembly include casing, Piston in casing, it is characterised in that: the closing of described sleeve pipe front end, middle leading portion side wall are evenly equipped with several side openings, and rear end is set There is flange；The pistons front sides are fixed with stud, and a toroidal cavity, piston rear side are formed between stud outer wall and internal surface of sleeve pipe Equipped with non-circular blind hole；The inner sidewall of leading portion is equipped with that front and back extends and inboard end is contacted with stud outer wall first in casing Partition, the stud outer wall are equipped with the second partition that front and back extends and outboard end is contacted with internal surface of sleeve pipe；The work of cannula cavity It fills in front area and is filled with gelling agent, outside of sleeve is coated with the plastic foil for covering side opening；When stud front end and casing front end When supporting, the rear end of piston and first partition is exactly in contact with, and first partition and second partition respectively in axial direction will be annular empty at this time Chamber is separated；In the initial state, the rear end of first partition and the front end of second partition recline pencil assembly, so that column Bolt can only be reversely rotated in the case where sleeve position is fixed；The component of injecting includes placement set, guide holder and push rod；Peace Setting set rear portion is placement hole cylindrical and can accommodating flange, and placement hole front side passes through export for casing to be small compared with its diameter Hole is installed on the thrust bearing for supporting flange leading flank on the annular anterior wall of placement hole；Placement, which puts on to be equipped with, has lock Fixed, unlock two states retaining mechanisms, lock state setting of casing and placement set can not relative rotation, not to set under unlocked state The relative rotation of pipe and placement set, which is constituted, to be hindered；The guide holder is equipped with round table-like plug division, will run through before and after guide holder Threaded hole；When guide holder is combined with placement set, the rear end of placement hole is inserted into plug division, and guide holder can phase with placement set at this time To rotation and monnolithic case it is cylindrical, flange is large enough to hold in the space between plug division and thrust bearing；On the push rod It equipped with guide thread, passes through from threaded hole and is threadedly engaged with threaded hole, the front end of push rod is equipped with can be with blind hole grafting group The plug of conjunction, putting back-end are fixed with torsion handle, turn round the press handle for being equipped on rear side of handle and being rotatablely connected with push rod；When guide holder position is protected It holds after fixed and plug combines with blind hole, pushes press handle forward, push rod will drive stud to rotate in the forward direction.

2. rotary gynecological medicine applier according to claim 1, it is characterised in that: pencil assembly is using disposable Requirement processed, injecting component can be recycled.

3. rotary gynecological medicine applier according to claim 1, it is characterised in that: plug combined with blind hole grafting after two Person can generate frictional resistance appropriate to prevent the two from being detached from, and in favor of pencil assembly and inject component maintenance assembled state.

4. rotary gynecological medicine applier according to claim 1, it is characterised in that: the stud and second partition one Body formed, stud inner hollow, in a ring, the rear end and the two for being placed on stud are sealedly and fixedly connected the piston； The blind hole is provided with the wall portion of stud tail end.

5. rotary gynecological medicine applier according to claim 1, it is characterised in that: piston is moved to row by initial position In journey terminal procedures, the circle number of push rod and guide holder relative rotation should be 1-3 circle.

6. rotary gynecological medicine applier according to claim 1, it is characterised in that: the retaining mechanism is opened including one It is located at placement to put on and hang down the mounting hole that communicates with leadout hole, being equipped in mounting hole can float up and down but not be detached from mounting hole Positioning pin, be equipped in mounting hole and positioning pin driven to be moved upward to the reset spring of reset state, the upper end of positioning pin is equipped with Button, button protrude from the outer surface of placement set；When positioning pin is in initial position, the rotation of casing is not constituted and hindered, i.e., Retaining mechanism is in the unlocked state；When artificially pressing lower button, positioning pin lower end is supported with casing, so as to prevent casing and peace Set relative rotation is set, i.e. retaining mechanism is in the lock state.

7. rotary gynecological medicine applier according to claim 1, it is characterised in that: the casing front inner wall center of circle Place is provided with a check card hole, and the stud front end is equipped with a claw；It is described when stud front end and casing front end, which are supported, to be contacted Claw be just inserted into check card hole, this rear claw and check card hole only can relative rotation, thus can prevent rotary course center pillar Bolt moves backward.

8. rotary gynecological medicine applier according to claim 7, it is characterised in that: check card hole is provided with set by one The exit orifice on pipe front inner wall surface and an inner hole being provided with inside casing front end are constituted, and interior boring ratio exit orifice diameter makes greatly The two forms a limited step；The claw is made of the barb of two elastically deformables, after two barbs are inserted into inner hole, It is limited by limited step and can not be extracted out, but barb can be rotated in inner hole.