CN110420379B - Combined gynecological drug delivery device - Google Patents
Combined gynecological drug delivery device Download PDFInfo
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- CN110420379B CN110420379B CN201910810268.4A CN201910810268A CN110420379B CN 110420379 B CN110420379 B CN 110420379B CN 201910810268 A CN201910810268 A CN 201910810268A CN 110420379 B CN110420379 B CN 110420379B
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- 238000012377 drug delivery Methods 0.000 title abstract description 41
- 239000003814 drug Substances 0.000 claims abstract description 157
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims description 26
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 230000005489 elastic deformation Effects 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 229940079593 drug Drugs 0.000 abstract description 30
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 230000000172 allergic effect Effects 0.000 abstract description 2
- 208000010668 atopic eczema Diseases 0.000 abstract description 2
- 230000000857 drug effect Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract 1
- 201000010099 disease Diseases 0.000 description 10
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 4
- 210000001215 vagina Anatomy 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000012840 feeding operation Methods 0.000 description 2
- 239000002906 medical waste Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 208000006374 Uterine Cervicitis Diseases 0.000 description 1
- 206010046914 Vaginal infection Diseases 0.000 description 1
- 201000008100 Vaginitis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 208000030961 allergic reaction Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 206010008323 cervicitis Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001647 drug administration Methods 0.000 description 1
- 239000003937 drug carrier Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 231100000957 no side effect Toxicity 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
- A61M31/002—Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/14—Female reproductive, genital organs
- A61M2210/1475—Vagina
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Medicinal Chemistry (AREA)
- Anesthesiology (AREA)
- Chemical & Material Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the technical field of medical equipment, and discloses a combined gynecological drug delivery device, which consists of a drug tube component and a drug pushing component; the medicine tube component consists of a medicine tube, a piston and a conical head, and the medicine tube consists of a conical part and a straight tube part; the front end of the conical part is closed, and side holes are arranged around the conical part; the conical head is positioned at the front side of the piston, a sponge layer is adhered to the front end and the periphery of the conical head, and liquid medicine is adsorbed in the sponge layer; the medicine pushing component comprises a tube shell, a connecting seat is arranged at the front end of the tube shell, and a sliding groove and a limiting groove are formed in the side wall of the tube shell; the inside of the tube shell is provided with a traveling bolt, a thrust spring and a ram; when the medicine pushing assembly is in a loading state, the sliding arm is screwed into the sliding groove, and the impact piston is moved forward to the front end of the straight pipe part by the impact hammer. The combined gynecological drug delivery device can enable the liquid medicine to be uniformly sprayed on the vaginal wall, improves the absorption efficiency of the drug effect components, and is particularly suitable for patients allergic to gel; the operation is convenient and quick, time and labor are saved, and the patient can operate by himself; the use cost is low, and the material waste is reduced.
Description
Technical Field
The invention relates to a medical apparatus, in particular to a medicine feeder used in the treatment process of gynecological diseases.
Background
Vaginitis and cervicitis are the most common gynecological diseases, and the treatment means of the diseases mainly take external medicines; in general, the liquid medicine is the external medicine (medicinal solution) which is most favorable for absorption, but is inconvenient to be smeared and sprayed on the affected part due to the physiological structure specificity of the position of the affected part of the gynecological disease; therefore, the gynecological external medicine most commonly used at present is gynecological gel formed by mixing medicines and gel, and the gynecological gel is placed on an affected part by using a special administration device when in use, so that the aim of treating diseases is fulfilled. Although gynecological gel has certain advantages in the clinical use process, the defects are obvious, on one hand, the medicinal components are uniformly dispersed in the gel, the whole form is viscous, the dissolution process is slow, the medicinal components are difficult to absorb in time, most of the medicinal components are discharged along with the residual gel and secretion finally, the medicine absorption and utilization rate and the disease treatment effect are reduced, and the gynecological gel is in a cluster shape in the administration process, so that the dissolution difficulty of the gynecological gel is further increased; on the other hand, the main function of the gel in gynecological gel is to be used as a drug carrier, and generally has no side effect, but part of patients can generate allergic reaction to the gel, and cause new injury in the disease treatment process. Meanwhile, in the existing gynecological disease treatment and drug administration process, the drug is usually manually pushed into the vagina, so that the operation is troublesome, time and labor are wasted, and even the patient cannot operate the drug by himself. In addition, the existing gynecological drug delivery device is generally designed in a disposable way, and has the effect of safety and sanitation, but the drug delivery device is entirely discarded after being used, so that a certain amount of material is wasted, and the treatment cost of a patient is increased to a certain extent.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the combined gynecological drug feeder which can uniformly spray the liquid medicine on an affected part, improves the drug absorption efficiency and the treatment effect and is convenient and quick to operate.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the combined gynecological medicine feeder is characterized by comprising a disposable medicine tube assembly and a reusable medicine pushing assembly;
wherein the medicine tube component consists of a medicine tube, a piston and a conical head; the medicine tube consists of a conical part and a straight tube part which are integrally formed in the front and the back; the inner diameter of the conical part is gradually increased from front to back, the front end is closed, and side holes are uniformly distributed on the side walls of the periphery; the rear end of the straight pipe part is a connecting part, and the piston can only slide in the straight pipe part; the conical head is positioned at the front side of the piston, the outer diameter of the conical head gradually increases from front to back, a sponge layer is adhered to the front end and the periphery of the conical head, and liquid medicine is adsorbed in the sponge layer; when the piston moves to the front end of the straight pipe part, the conical head and the conical part extrude the sponge layer to a compressed state;
the medicine pushing component comprises a tube shell, wherein a connecting seat used for being combined with the connecting part is arranged at the front end of the tube shell, and a sliding groove extending forwards and backwards and a limiting groove which is vertical to the rear end of the sliding groove and communicated with the sliding groove are formed in the side wall of the tube shell; the inside of the tube shell is provided with a travel bolt, a thrust spring for driving the travel bolt to move forwards, and a ram fixed on the front side of the travel bolt, wherein the travel bolt is fixedly connected with a sliding arm which can only move along a sliding groove and a limiting groove; the outer end of the sliding arm is positioned outside the tube shell and is provided with a handle part, the sliding arm can be adjusted into the limit groove by utilizing the handle part, the medicine pushing assembly is in a loading state at the moment, the axial position of the sliding bolt is locked, and the thrust spring is in a compression state; after the initial state of the medicine tube assembly is combined with the medicine pushing assembly in the loading state, the ram and the piston have a distance, and then the sliding arm is screwed into the sliding groove, the thrust spring provides thrust, and the ram impacts the piston and moves the piston forward to the front end of the straight tube part.
The working principle of the combined gynecological drug delivery device is as follows:
the handle is pulled backwards by the handheld tube shell, when the sliding arm reaches the tail end of the sliding groove, the handle is twisted to enable the sliding arm to enter the limiting groove, under the limitation of the limiting groove, the sliding bolt can overcome the thrust of the thrust spring and cannot move forwards axially, and at the moment, the medicine pushing assembly is adjusted to an upper hearth state; the connecting part of the medicine tube is combined and connected with the connecting seat, namely, the combination of the medicine tube component and the medicine pushing component is completed; the holding tube shell is used for placing the medicine tube at a proper position in the vagina of a patient, the handle is twisted to enable the sliding arm to be separated from the limiting groove and enter the sliding groove, then under the driving of the thrust spring, the plunger is driven by the plunger to move forwards, the plunger generates violent impact on the piston after certain acceleration, the piston instantaneously moves to the front end of the straight tube part, the conical head and the conical part extrude the sponge layer in the process of moving forwards of the piston, the medicine liquid in the sponge layer is sprayed out through each side hole and uniformly sprayed on each part of the vaginal wall, the medicine tube is taken out from the patient, the whole medicine feeding operation is finished, the used medicine tube assembly is used as medical waste for treatment, and the medicine pushing assembly is cleaned for next use.
Compared with the prior art, the invention has the following beneficial effects:
the combined gynecological drug delivery device adopts a exquisite structural design, so that the external liquid medicine (medicament solution) is more suitable for application in gynecological disease treatment; in the process of drug delivery, each side hole can discharge liquid medicine, and the liquid medicine has high spraying speed, can generate violent collision with an affected part, can uniformly spray the liquid medicine on the vaginal wall, and ensures that the liquid medicine is fully contacted with the affected part; when the combined gynecological medicine feeder is clinically used, before medicine feeding is implemented, the medicine pushing component is adjusted to an upper hearth state in advance, and in the later medicine feeding process, the medicine pushing component automatically drives the medicine tube component to finish medicine feeding by utilizing potential energy accumulated by the medicine pushing component, so that manual power supply is not needed, the operation is convenient and quick, time and labor are saved, and a patient can easily operate the combined gynecological medicine feeder by himself; because this combination formula gynaecology's medicine feeder has adopted the combination formula design, though push away the medicine subassembly and constitute by a plurality of parts, but because of its non-contact and repeatedly usable with the affected part, disposable medicine pipe subassembly need not to set up the position of gripping and length is shorter, and the medicine pipe subassembly need not to set up the push rod alone in addition for medicine pipe subassembly is simpler than current medicine feeder structure, and the cost is cheaper, has reduced the material extravagant, and when clinical application, a set of medicine subassembly that pushes away can cooperate many sets of medicine pipe subassemblies to use for this combination formula gynaecology's medicine feeder's average use cost can not be higher than current gynaecology's medicine feeder. Based on the above, the combined gynecological drug feeder has great application prospect and popularization significance in clinic.
Drawings
Fig. 1 is a schematic structural diagram of a tube assembly in embodiment 1.
Fig. 2 is a state diagram of the cartridge assembly in example 1 in which the piston is located at the front end of the straight tube portion.
Fig. 3 is an exploded view of the drug delivery assembly of example 1.
Fig. 4 is a schematic view showing a loading state of the drug delivery assembly in example 1.
Fig. 5 is a schematic structural diagram of the combination of the drug delivery device and the drug delivery device according to embodiment 1.
Fig. 6 is a cross-sectional view of the drug delivery device of example 1 in combination with a drug delivery device.
Fig. 7 is a schematic diagram of the working principle of the combined gynecological drug dispenser in example 1.
Fig. 8 is a schematic diagram of the structure of the piston and the conical head in embodiment 1.
Fig. 9 is a schematic structural view of the drug delivery assembly in example 2 with the screw sleeve at the beginning of the external thread.
Fig. 10 is a schematic structural view of the drug delivery assembly of example 2 with the threaded sleeve at the end of the external thread.
FIG. 11 is a schematic diagram showing the cooperation of the sliding sleeve and the sliding arm in example 2.
Fig. 12 is a cross-sectional view of the cartridge assembly of example 3 with the piston at the rear end of the straight tube portion.
Fig. 13 is a cross-sectional view of the cartridge assembly of example 3 with the piston at the front end of the straight tube portion.
In the figure, 1, a conical part, 2, a side hole, 3, a sponge layer, 4, a conical head, 5, a straight pipe part, 6, a connecting part, 7, a piston, 8, a handle part, 9, a running bolt, 10, a thrust spring, 11, a connecting seat, 12, a sliding chute, 13, a limit groove, 14, a pipe shell, 15, a sliding arm, 16, a ram, 17, a screw sleeve, 18, an external thread, 19, a sliding sleeve, 20 and a non-return tooth.
Detailed Description
Example 1
Referring to fig. 1, 4 and 5, the combined gynecological drug delivery device disclosed in the present embodiment is composed of a drug tube assembly and a drug pushing assembly;
referring to fig. 1 and 2, the cartridge assembly is disposable and comprises a cartridge, a piston 7 and a conical head 4; the medicine tube consists of a conical part 1 and a straight tube part 5 which are integrally formed in the front and the back; the inner diameter of the conical part 1 gradually increases from front to back to form a taper, the front end of the conical part is closed, and side holes 2 are uniformly distributed on the side walls of the periphery of the conical part; the front and rear inner diameters of the straight pipe part 5 are consistent, the rear end of the straight pipe part is provided with a connecting part 6, and the piston 7 can only slide in the straight pipe part 5 in a sealing way; the conical head 4 is positioned at the front side of the piston 7, the outer diameter of the conical head is gradually increased from front to back to form a taper, the sponge layer 3 is adhered to the outer sides of the front end and the peripheral side walls, and the liquid medicine is adsorbed in the sponge layer 3; when the medicine tube assembly is in an initial state, namely when the processing and manufacturing are completed, the piston 7 is positioned at the rear end of the straight tube part 5, the sponge layer 3 is not extruded by the conical head 4 and the conical part 1 and is in a stretching state, when the piston 7 moves to the front end of the straight tube part 5, the conical head 4 and the conical part 1 extrude the sponge layer 3 to a compression state, and the medicine liquid absorbed by the sponge layer 3 in the extrusion process is discharged through the side hole 2 on the conical part 1;
the medicine pushing assembly is repeatedly used as shown in fig. 3-7, and comprises a tube shell 14, wherein the front end of the tube shell 14 is provided with a connecting seat 11 for combined connection with the connecting part 6, and the side wall of the tube shell 14 is provided with a sliding groove 12 extending forwards and backwards and a limiting groove 13 which is vertical to the rear end of the sliding groove 12 and is communicated with the sliding groove; the shell 14 is internally provided with a running bolt 9, a thrust spring 10 for driving the running bolt 9 to move forwards and a ram 16 fixed on the front side of the running bolt 9; the sliding bolt 9 is fixedly connected with a sliding arm 15 which can only move along the sliding groove 12 and the limiting groove 13, so that the sliding bolt 9 can only move in a preset track, and the outer end of the sliding arm 15 extends out of the tube shell 14 and is provided with a handle 8; the sliding arm 15 can be moved to the rear end of the sliding groove 12 by utilizing the handle part 8, then the sliding arm 15 can be adjusted into the limiting groove 13 by rotating the handle part 8, at the moment, the medicine pushing assembly is in a loading state, the axial position of the sliding bolt 9 is locked and cannot move forward, and the thrust spring 10 is in a compression state and has larger potential energy; after the medicine tube assembly in the initial state is combined with the medicine pushing assembly in the loaded state, the ram 16 is spaced from the piston 7, the handle 8 is twisted to enable the sliding arm 15 to be screwed into the sliding groove 12, the thrust spring 10 provides thrust force, the ram 16 impacts the piston 7 and enables the piston 7 to move forward to the front end of the straight tube portion 5, the conical head 4 presses the sponge layer 3 with the conical portion 1 in the process that the piston 7 moves forward, and liquid medicine in the sponge layer 3 is sprayed out through each side hole 2.
The working principle of the combined gynecological drug delivery device is as follows:
referring to fig. 6 and 7, when the handle 8 is pulled backwards by the hand-held tube housing 14 and the sliding arm 15 reaches the rear end of the sliding groove 12, the handle 8 is twisted to enable the sliding arm 15 to enter the limiting groove 13, the axial position of the sliding bolt 9 is locked under the limitation of the limiting groove 13, the sliding bolt can overcome the thrust of the thrust spring 10 and cannot move forwards axially, at the moment, the medicine pushing assembly is adjusted to an upper bore state, and the thrust spring 10 is compressed to have larger elastic potential energy; the connecting part 6 of the medicine tube is combined and connected with the connecting seat 11, namely, the combination of the medicine tube component and the medicine pushing component is completed; the holding tube shell 14 is used for placing the medicine tube in a proper position in the vagina of a patient, the handle 8 is twisted to enable the sliding arm 15 to be separated from the limiting groove 13 and enter the sliding groove 12, then under the driving of the thrust spring 10, the plunger 9 drives the plunger 16 to move forwards, the plunger 16 generates violent impact on the piston 7 after certain acceleration, the piston 7 instantaneously moves to the front end of the straight tube part 5, the conical head 4 and the conical part 1 squeeze the sponge layer 3 in the forward moving process of the piston 7, the medicine liquid in the sponge layer 3 is sprayed out through each side hole 2 and evenly sprayed on each part of the vagina wall, the medicine tube is taken out from the patient, the whole medicine feeding operation is finished, the used medicine tube assembly is used as medical waste for treatment, and the medicine pushing assembly is cleaned for the next use.
Referring to fig. 7, the combined gynecological drug delivery device adopts a exquisite structural design, so that the external liquid medicine (medicament solution) is more suitable for being applied to gynecological disease treatment, and compared with gynecological gel, the gynecological gel is easier to absorb and utilize, and the drug effect is timely; in the process of drug delivery, each side hole 2 can discharge liquid medicine, and the liquid medicine spraying speed is high, so that the combined gynecological drug delivery device can collide with an affected part violently, can uniformly spray the liquid medicine on the vaginal wall, ensures that the liquid medicine is fully contacted with the affected part, further improves the absorption efficiency of medicinal components, improves the treatment effect, and is particularly suitable for patients allergic to gel.
When the combined gynecological drug feeder is clinically used, the drug pushing component is adjusted to an upper bore state in advance before drug feeding is implemented, and the drug pushing component automatically drives the drug tube component to finish drug feeding by utilizing potential energy accumulated by the drug pushing component in the drug feeding process, so that manual power supply is not needed, the operation is convenient and quick, time and labor are saved, and a patient can easily operate by himself.
Because this combination formula gynaecology's medicine feeder has adopted the combination formula design, though push away the medicine subassembly and constitute by a plurality of parts, but because of its non-contact and repeatedly usable with the affected part, disposable medicine pipe subassembly need not to set up the position of gripping and length is shorter, and the medicine pipe subassembly need not to set up the push rod alone in addition for medicine pipe subassembly is simpler than current medicine feeder structure, and the cost is cheaper, has reduced the material extravagant, and when clinical application, a set of medicine subassembly that pushes away can cooperate many sets of medicine pipe subassemblies to use for this combination formula gynaecology's medicine feeder's average use cost can not be higher than current gynaecology's medicine feeder.
Referring to fig. 1, in the combined gynecological drug delivery device, the sponge layer 3 is arranged to adsorb the drug solution, before drug delivery is implemented, the drug solution is gathered in the sponge layer 3 and cannot automatically flow out through the side holes 2, and in order that the amount of the drug solution adsorbed in the sponge layer 3 can meet the requirement of each drug delivery dosage, the sponge layer 3 is made of a sponge material with good drug solution adsorption capacity; meanwhile, in the implementation process of the combined gynecological drug delivery device, the necessary measures for avoiding the leakage of the liquid medicine from the side hole 2 before use are also provided, and in the prior art, the necessary measures have various embodiments, such as a plastic film (not shown) for sealing the side hole 2 is coated outside the drug tube, and the plastic film is used for preventing the liquid medicine from flowing out through the side hole 2 on one hand and isolating the liquid medicine from air on the other hand, so as to avoid the quality change of the liquid medicine.
Referring to fig. 2 and 7, in the combined gynecological drug delivery device, the conical head 4 and the conical part 1 are both big in front and small in back and have conicity, in the forward moving process of the conical head 4, the cavity formed between the front side and the periphery of the conical head 4 and the inner wall of the conical part 1 is gradually reduced, and then the sponge layer 3 can be extruded in an omnibearing manner, and in the implementation process of the combined gynecological drug delivery device, the dimensional parameters of the conical head 4, the conical part 1 and the sponge layer 3 are debugged and adjusted, so that when the piston 7 is positioned at the foremost end of the straight pipe part 5, the conical head 4 and the conical part 1 can extrude the liquid medicine in the sponge layer 3 to the greatest extent, thereby reducing the residual liquid medicine in the sponge layer 3 after drug delivery is completed.
Referring to fig. 3 and 6, in the combined gynecological drug delivery device, in order to make the movement of the peg 9 in the tube shell 14 more stable, and also to make the adjustment of the position of the slide arm 15 by the handle 8 more convenient for operation; the side wall of the pipe shell 14 is provided with a sliding groove 12 and a limiting groove 13 respectively at two opposite sides, the sliding bolt 9 is fixedly provided with two sliding arms 15, the two sliding arms 15 are respectively in sliding fit with the two sliding grooves 12, the outer end parts of the sliding arms 15 are respectively provided with a handle part 8, the two sliding arms 15 can be driven to simultaneously reach the rear ends of the two sliding grooves 12 through the two handle parts 8, and then the handle part 8 is twisted to drive the two sliding arms 15 to respectively move into the corresponding limiting grooves 13.
Referring to fig. 1, 4 and 5, in the combined gynecological drug delivery device, the rear end of a drug tube is provided with a connecting part 6, a connecting seat 11 can be combined and connected with the connecting part 6 to realize the combined connection of a drug tube component and a drug pushing component, and the connecting part 6 and the connecting seat 11 have certain stability after being combined and at least can bear acting force indirectly generated in the process that a ram 16 impacts a piston 7 to move forwards; in the prior art, the mating structure of the connecting portion 6 and the connecting base 11 has various embodiments, for example, the connecting portion 6 and the connecting base 11 are provided with mutually matched threads, and the connecting portion 6 and the connecting base 11 can be stably connected through the threads.
Referring to fig. 8, in the combined gynecological drug delivery device, the drug tube assembly is disposable, the lower the manufacturing cost is, the better, in order to reduce the manufacturing cost and the processing difficulty of the drug tube assembly, the following structures are preferably adopted for the piston 7 and the conical head 4:
the conical head 4 is of a hollow shell structure; the piston 7 is annular and sleeved outside the rear end of the conical head 4; the contact surface of the piston 7 and the conical head 4 is fixedly connected in a sealing way through bonding.
Example 2
Referring to fig. 5 and 6, in the clinical application process of the combined gynecological drug delivery device disclosed in embodiment 1, the ram 16 is powered by the thrust spring 10 to impact the piston 7, so as to drive the conical head 4 to move forward and squeeze the sponge layer 3 with the conical part 1, thereby realizing drug delivery; based on the above working principle, when the combined gynecological drug delivery device is implemented, the thrust spring 10 should have enough elasticity, so that on one hand, the liquid medicine in the sponge layer 3 needs to be ensured to be sprayed out through the side hole 2 at a higher speed, and on the other hand, the sponge layer 3 needs to be ensured to be extruded enough, so that the liquid medicine can be extruded out to the greatest extent, and the residual liquid medicine is reduced; however, if the elastic force of the thrust spring 10 is increased, the force of the combined gynecological drug delivery device is required to be more laborious when the user adjusts the combined gynecological drug delivery device to the upper bore state, and the force of the common female is smaller, so that certain inconvenience is brought to the operation and the use of the combined gynecological drug delivery device, and in order to make the operation of the user adjusts the combined gynecological drug delivery device to the upper bore state more labor-saving and convenient, the combined gynecological drug delivery device disclosed in the embodiment 1 has further improvement on the basis of the structure, and the specific structure is as follows:
as shown in fig. 9 and 10, the tube shell 14 is provided with an external thread 18, a threaded sleeve 17 matched with the external thread 18 is sleeved outside the tube shell 14, and the threaded sleeve 17 is positioned at the front side of the sliding arm; when the screw sleeve 17 is positioned at the beginning end of the external thread 18, the screw sleeve 17 is positioned in front of the chute, and the sliding arm can be pushed to move backwards along with the screw sleeve 17 in the backward rotation and movement process; when the screw sleeve 17 rotates to the tail end of the external thread 18, the screw sleeve 17 pushes the sliding arm 15 to the rear end of the sliding groove 12, and at the moment, the sliding arm 15 can be adjusted into the limiting groove 13 by rotating the handle 8.
Referring to fig. 9 and 10, after the above design is adopted in the combined gynecological medicine feeder, if the force of an operator is small and the medicine pushing assembly is to be adjusted to the upper bore state, the handle 8 cannot be manually driven to adjust the slide arm 15 into the limit groove 13, then the screw sleeve 17 can be rotated to drive the slide arm 15 to move backwards by means of the screw sleeve 17, and finally the slide arm 15 enters the limit groove 13 by rotating the handle 8, at this moment, the combined gynecological medicine feeder is adjusted to the upper bore state, then the screw sleeve 17 is rotated to the beginning of the external thread 18, and the screw sleeve 17 cannot form an obstacle to the forward movement of the slide arm 15 in the medicine feeding process, so that the upper bore operation is more labor-saving; at the same time, if the operator is forced to a great extent, the handle 8 can still be driven manually to adjust the slide arm 15 into the limit slot 13, so that the combined gynaecological applicator can be adjusted to the loaded state in a more rapid manner.
Further, in the process of the backward rotation of the threaded sleeve 17, the threaded sleeve 17 and the sliding sleeve 19 will rotate relatively, in order to reduce the resistance of the two rotating relatively, in this embodiment, as shown in fig. 11, a sliding sleeve 19 capable of rotating freely is sleeved outside the sliding arm 15, and the sliding arm 15 is pushed to move backward by the sliding sleeve 19 during the process of the rotational movement of the threaded sleeve 17.
Example 3
Referring to fig. 2 and 7, when the combined gynecological medicine dispenser disclosed in embodiment 1 performs medicine dispensing, the ram 16 performs impact on the piston 7 to drive the conical head 4 to move forward to squeeze the sponge layer 3 with the conical portion 1, the pressure applied by the conical head 4 and the conical portion 1 to the sponge layer 3 is maximum in the short process of impact, after the impact is completed, the conical head 4 may have a rebound tendency, if the conical head 4 rebounds backwards, the sponge layer 3 will slightly stretch, and part of the medicine is sucked back, so that more medicine remains in the sponge layer after the medicine dispensing is completed; in order to avoid the occurrence of the above situation, the present embodiment has a further improvement on the cannula assembly based on the structure of the combined gynecological drug delivery device disclosed in embodiment 1, and the specific structure is as follows:
as shown in fig. 12 and 13, the inner wall of the straight tube portion 5 of the medicine tube is provided with a plurality of protruding check teeth 20, the check teeth 20 are wedge-shaped, when the ram 16 impacts the piston 7 to move forward, the piston 7 contacts with the check teeth 20 and then moves forward continuously through self elastic deformation, when the piston 7 reaches the front end of the straight tube portion 5, the rear end face of the piston 7 is just positioned at the front side of the check teeth 20, and the piston 7 cannot move backward under the limitation of the check teeth 20.
Therefore, when the ram 16 impacts the piston 7, the corresponding part of the piston 7 will elastically deform under the guiding of the inclined plane of the wedge-shaped non-return tooth 20 to continue to move forward, and when the piston 7 is impacted to the forefront end of the straight pipe part 5, the rear end surface of the piston 7 is just positioned at the front side of the non-return tooth 20, and the non-return tooth 20 will prevent the piston 7 from moving backward through the front side elevation, namely, the cone 4 is prevented from rebounding backward, and the sponge layer 3 is prevented from sucking liquid medicine back.
Claims (5)
1. The combined gynecological medicine feeder is characterized by comprising a disposable medicine tube assembly and a reusable medicine pushing assembly;
wherein the medicine tube component consists of a medicine tube, a piston and a conical head; the medicine tube consists of a conical part and a straight tube part which are integrally formed in the front and the back; the inner diameter of the conical part is gradually increased from front to back, the front end is closed, and side holes are uniformly distributed on the side walls of the periphery; the rear end of the straight pipe part is a connecting part, and the piston can only slide in the straight pipe part; the conical head is positioned at the front side of the piston, the outer diameter of the conical head gradually increases from front to back, a sponge layer is adhered to the front end and the periphery of the conical head, and liquid medicine is adsorbed in the sponge layer; when the piston moves to the front end of the straight pipe part, the conical head and the conical part extrude the sponge layer to a compressed state;
the medicine pushing component comprises a tube shell, wherein a connecting seat used for being combined with the connecting part is arranged at the front end of the tube shell, and a sliding groove extending forwards and backwards and a limiting groove which is vertical to the rear end of the sliding groove and communicated with the sliding groove are formed in the side wall of the tube shell; the inside of the tube shell is provided with a travel bolt, a thrust spring for driving the travel bolt to move forwards, and a ram fixed on the front side of the travel bolt, wherein the travel bolt is fixedly connected with a sliding arm which can only move along a sliding groove and a limiting groove; the outer end of the sliding arm is positioned outside the tube shell and is provided with a handle part, the sliding arm can be adjusted into the limit groove by utilizing the handle part, the medicine pushing assembly is in a loading state at the moment, the axial position of the sliding bolt is locked, and the thrust spring is in a compression state; after the medicine tube assembly in the initial state is combined with the medicine pushing assembly in the loading state, the ram and the piston have a distance, and then if the sliding arm is screwed into the sliding groove, the thrust spring provides thrust, and the ram impacts the piston and moves the piston forward to the front end of the straight pipe part; the shell is provided with an external thread, a threaded sleeve matched with the external thread is sleeved outside the shell, and the threaded sleeve is positioned at the front side of the sliding arm; when the screw sleeve is positioned at the initial end of the external thread, the screw sleeve is positioned in front of the chute, and the sliding arm can be pushed to move backwards along with the screw sleeve in the backward rotation and movement process; when the screw sleeve rotates to the tail end of the external thread, the screw sleeve pushes the sliding arm to the rear end of the sliding groove, and the sliding arm can be adjusted into the limiting groove by rotating the handle; the sliding arm is sleeved with a freely rotatable sliding sleeve, and the sliding arm is pushed to move backwards by the sliding sleeve in the rotating and moving process of the threaded sleeve.
2. The combination gynecological applicator of claim 1 wherein: the outside of the medicine tube is coated with a plastic film for plugging the side hole.
3. The combination gynecological applicator of claim 1 wherein: the connecting part and the connecting seat are provided with mutually matched threads, and the connecting part and the connecting seat can be stably connected through the threads.
4. The combination gynecological applicator of claim 1 wherein: the conical head is of a hollow shell structure; the piston is in a ring shape and is sleeved outside the rear end of the conical head; the contact surface of the piston and the conical head is fixedly connected in a sealing way in an adhesive way.
5. The combination gynecological applicator of claim 1 wherein: the inner wall of the straight pipe part of the medicine pipe is provided with a plurality of convex check teeth which are wedge-shaped, when the impact piston of the ram moves forward, the piston is contacted with the check teeth and then moves forward continuously through self elastic deformation, when the piston reaches the front end of the straight pipe part, the rear end face of the piston is just positioned at the front side of the check teeth, and the piston cannot move backward under the limit of the check teeth.
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| CN201910810268.4A CN110420379B (en) | 2019-08-29 | 2019-08-29 | Combined gynecological drug delivery device |
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| CN201910810268.4A CN110420379B (en) | 2019-08-29 | 2019-08-29 | Combined gynecological drug delivery device |
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| CN110420379B true CN110420379B (en) | 2024-01-05 |
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| CN112336968A (en) * | 2020-10-06 | 2021-02-09 | 德清创赢机械科技有限公司 | Medicine feeder for obstetrics and gynecology department |
| CN113925553B (en) * | 2021-09-29 | 2023-11-17 | 江苏禾川医疗有限公司 | Bronchial blanking plug capable of reducing pain of patient |
| CN116196538B (en) * | 2023-04-07 | 2023-08-11 | 北京阳光宜康科技发展有限责任公司 | Fixed gynaecology ware of dosing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5496293A (en) * | 1993-04-06 | 1996-03-05 | Medimpex Ets. | Advancing mechanism for an injection device |
| CN2936281Y (en) * | 2006-06-22 | 2007-08-22 | 陈凯 | Propelling injector for no-needle injection |
| JP2010099135A (en) * | 2008-10-21 | 2010-05-06 | Hiroteru Yoshida | Device and cartridge for medicine application |
| WO2010121289A1 (en) * | 2009-04-20 | 2010-10-28 | Collyn Patent Holdings Pty Ltd | Syringe with safety sheath |
| CN208694022U (en) * | 2018-03-31 | 2019-04-05 | 常杰 | Gyniatrics delivery device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110319833A1 (en) * | 2010-06-24 | 2011-12-29 | Thomas Chun | Protective guard for needles of injection devices |
| US20180021556A1 (en) * | 2015-02-13 | 2018-01-25 | Chee Yen Lim | Painless drug implanter |
-
2019
- 2019-08-29 CN CN201910810268.4A patent/CN110420379B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5496293A (en) * | 1993-04-06 | 1996-03-05 | Medimpex Ets. | Advancing mechanism for an injection device |
| CN2936281Y (en) * | 2006-06-22 | 2007-08-22 | 陈凯 | Propelling injector for no-needle injection |
| JP2010099135A (en) * | 2008-10-21 | 2010-05-06 | Hiroteru Yoshida | Device and cartridge for medicine application |
| WO2010121289A1 (en) * | 2009-04-20 | 2010-10-28 | Collyn Patent Holdings Pty Ltd | Syringe with safety sheath |
| CN208694022U (en) * | 2018-03-31 | 2019-04-05 | 常杰 | Gyniatrics delivery device |
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Effective date of registration: 20231204 Address after: 519000 room 509, type B workshop, No. 18, Keji seventh Road, Tangjiawan Town, high tech Zone, Zhuhai, Guangdong Applicant after: ZHUHAI YILIDA ELECTRONIC EQUIPMENT Co.,Ltd. Address before: 253000 No.1, Sanba Road, Decheng District, Dezhou City, Shandong Province Applicant before: Zhao Junwen |
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