CN111991624B - Function conversion module for injection medical device - Google Patents
Function conversion module for injection medical device Download PDFInfo
- Publication number
- CN111991624B CN111991624B CN202010665808.7A CN202010665808A CN111991624B CN 111991624 B CN111991624 B CN 111991624B CN 202010665808 A CN202010665808 A CN 202010665808A CN 111991624 B CN111991624 B CN 111991624B
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- tube
- hole
- conversion
- pipe
- base
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 83
- 238000002347 injection Methods 0.000 title abstract description 15
- 239000007924 injection Substances 0.000 title abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 230000000903 blocking effect Effects 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000006870 function Effects 0.000 description 11
- 239000003814 drug Substances 0.000 description 10
- 210000003454 tympanic membrane Anatomy 0.000 description 9
- 210000000959 ear middle Anatomy 0.000 description 6
- 206010033078 Otitis media Diseases 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229940079593 drug Drugs 0.000 description 3
- 238000007913 intrathecal administration Methods 0.000 description 3
- 208000005923 otitis media with effusion Diseases 0.000 description 3
- 208000024036 serous otitis media Diseases 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002124 endocrine Effects 0.000 description 1
- 210000002388 eustachian tube Anatomy 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000010370 hearing loss Effects 0.000 description 1
- 231100000888 hearing loss Toxicity 0.000 description 1
- 208000016354 hearing loss disease Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- A61M1/0023—
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/19—Syringes having more than one chamber, e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3129—Syringe barrels
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
- A61M5/31513—Piston constructions to improve sealing or sliding
-
- 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
- A61M2210/06—Head
- A61M2210/0662—Ears
- A61M2210/0668—Middle ear
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (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 discloses a function conversion module for an injection medical device, which comprises a connector and a conversion tube; the connector comprises a substrate, a first convex pipe and a second convex pipe which are arranged at one side end of the substrate, and a first sliding pipe and a second sliding pipe which are arranged at the other side end of the substrate; the substrate is provided with a first through hole and a second through hole; the conversion tube comprises a base tube and a sealing plate arranged at one end of the base tube; a first blocking part and a second blocking part are arranged at one side end of the sealing plate, and an inner pipe is arranged at the other side end of the sealing plate; the outer wall of the inner tube and the inner wall of the base tube are clamped to form a first working cavity, and the lumen of the inner tube forms a second working cavity; the first plugging part is provided with a first conversion hole, and the second plugging part is provided with a second conversion hole; when the first conversion hole rotates to be communicated with the first through hole, the second blocking part blocks the second through hole; when the second conversion hole rotates to be communicated with the second through hole, the first blocking part blocks the first through hole. The invention can complete two kinds of function conversion by twisting the base pipe to a preset angle.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to a function conversion module for an injection medical device.
Background
Secretory otitis media is a otitis media disease characterized mainly by effusion and hearing loss. The etiology is mainly that eustachian tube is blocked, and the endocrine of the tympanic cavity can not drain to the pharyngeal portion, so that tympanic effusion is formed. The effusion of the tympanic cavity is mostly a mixture of leaking liquid, effusion and secretion. The removal of tympanic effusion is a key to the treatment of secretory otitis media. The tympanic membrane puncture aspiration of tympanic effusion is the most commonly used treatment method for otitis media, and is simple and easy to implement. Wherein, when treating secretory otitis media, the second needle insertion and drug injection are needed after the conventional puncture and liquid extraction, sometimes two holes are formed, and the drug flows back to the outer side of the tympanic membrane from the other needle hole during drug injection; in addition, secondary puncture can also exacerbate patient puncture pain.
CN105496644a discloses a tympanostomy, intrathecal injection medical device comprising: the device comprises a first puncture device, a second puncture device and a suction device, wherein the first puncture device comprises a puncture needle and the first connector, the second puncture device comprises an injection needle and the second connector, and the suction device comprises a negative pressure mechanism and a third connector; after the puncture needle and the injection needle are inserted into the tympanic cavity of the patient, the third connector of the suction device can be in threaded connection with the second connector of the second puncture device when the effusion in the tympanic cavity needs to be sucked; when the liquid medicine needs to be injected into the tympanic cavity, the third connector of the suction device can be screwed out from the second connector, and the fourth connector of the injection device can be screwed into the second connector.
The medical device has the following advantages: because the second puncture needle cover is established in first puncture needle inside, when first puncture needle puncture patient's tympanic membrane, first puncture needle can drive its inside second puncture needle and also puncture patient's tympanic membrane, first puncture needle and second puncture needle are both formed with only a puncture hole on patient's tympanic membrane, when the hydrops in the required suction drum room or need inject the liquid medicine to the tympanic cavity, only need select corresponding connector (third connector or fourth connector) be connected with the second connector can, need not form the diplopore on the tympanic membrane and cause the liquid medicine to flow back outside the tympanic membrane, also can not increase the misery of puncture for the patient.
But the medical device also has the following disadvantages: when switching between two functional states of sucking effusion and injecting medicine, one puncture device needs to be disassembled and then the other puncture device can be assembled, so that the operation is complicated; in addition, during the conversion operation, the needle heads of the injection needle and the puncture needle penetrate through the tympanic membrane and are positioned in the tympanic membrane, so that the complicated function conversion operation is easy to cause the needle heads to be pricked to other parts in the ear by hand shake.
Disclosure of Invention
It is an object of the present invention to provide a functional conversion module for an injectable medical device.
The technical scheme for realizing the aim of the invention is as follows: a function conversion module for an injection medical device, comprising a connector and a conversion tube; the connector comprises a substrate, a first convex pipe and a second convex pipe which are arranged at one side end of the substrate, and a first sliding pipe and a second sliding pipe which are arranged at the other side end of the substrate; the second convex tube is positioned in the lumen of the first convex tube; the substrate is provided with a first through hole and a second through hole; the second slide tube is positioned in the tube cavity of the first slide tube; the conversion tube comprises a base tube and a sealing plate arranged at one end of the base tube; one side end of the sealing plate is provided with a first blocking part matched with the first sliding tube and a second blocking part matched with the second sliding tube, and the other side end of the sealing plate is provided with an inner tube positioned in the lumen of the base tube; the outer wall of the inner tube and the inner wall of the base tube are clamped to form a first working cavity, and the lumen of the inner tube forms a second working cavity; the first blocking part is provided with a first conversion hole communicated with the first working cavity, and the second blocking part is provided with a second conversion hole communicated with the second working cavity; when the first conversion hole rotates to be communicated with the first through hole in the rotating process of the sealing plate along with the base pipe, the second blocking part blocks the second through hole; when the second conversion hole rotates to be communicated with the second through hole, the first blocking part blocks the first through hole.
In the above technical scheme, the first through hole is arranged in the first convex pipe and the second convex pipe enclosing space on the substrate, and the second through hole is arranged in the first convex pipe enclosing space on the substrate.
In the above technical scheme, the first blocking part and the second blocking part are clamped to form an annular groove matched with the second slide tube, and the second slide tube of the connector is inserted into the annular groove.
In the above technical scheme, the first plugging part and the second plugging part are respectively provided with a sealing surface which is abutted on the base plate of the connector, and the sealing surfaces are in sliding sealing fit with the base plate.
In the technical scheme, the inner wall of the first slide tube of the connector is provided with the arc-shaped guide groove which is arranged along the circumferential direction of the first slide tube; the peripheral wall of the base pipe is provided with a guide boss positioned in the guide groove.
In the above technical scheme, still be equipped with on the inner wall of first slide tube and set up at the guide gap along first slide tube central line direction, the last guide boss of connector and guide gap interference fit.
In the above technical solution, the shape of the radial section of the first working chamber is annular, and the shape of the radial section of the second working chamber is circular.
The invention has the positive effects that: the switching between the two functional states of sucking effusion and injecting medicine can be completed only by twisting the base tube to a preset angle.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the functional conversion module shown in FIG. 1 from another angle;
FIG. 3 is an exploded view of the functional conversion module of FIG. 2;
FIG. 4 is an exploded view of the functional conversion module of FIG. 3 from another angle;
FIG. 5 is a schematic perspective view of an injectable medical device made using the functional conversion module of FIG. 1;
FIG. 6 is a schematic view in semi-section of the injectable medical device of FIG. 5;
FIG. 7 is an exploded view of the injectable medical device of FIG. 6;
fig. 8 is an exploded view of the injectable medical device of fig. 7 from another angle.
The reference numerals are: the first needle 1, the first connecting tube 11, the first contact pin 12, the first channel 13, the second needle 2, the second connecting tube 21, the second contact pin 22, the second channel 23, the first piston 3, the first sealing plug 31, the first pull handle 32, the second piston 4, the second sealing plug 41, the second pull handle 42, the connector 5, the base plate 51, the first through hole 511, the second through hole 512, the first protruding tube 52, the second protruding tube 53, the first sliding tube 54, the second sliding tube 55, the guiding groove 551, the guiding notch 552, the switching tube 6, the base tube 61, the sealing plate 62, the first sealing part 63, the first switching hole 631, the second sealing part 64, the second switching hole 641, the inner tube 65, the first working chamber 66, the second working chamber 67, the annular groove 68, the guiding boss 69.
Detailed Description
(embodiment 1, functional conversion Module)
This embodiment is a functional conversion module for an injectable medical device, as shown in fig. 1 to 4, comprising a connector 5 and a conversion tube 6.
The connector comprises a base plate 51, a first convex pipe 52 and a second convex pipe 53 which are arranged at one side end of the base plate, and a first sliding pipe 54 and a second sliding pipe 55 which are arranged at the other side end of the base plate; the second convex tube is positioned in the lumen of the first convex tube; the substrate is provided with four first through holes 511 and four second through holes 512; the second slide tube is positioned in the lumen of the first slide tube. The four first through holes and the four second through holes are uniformly distributed along the circumferential direction of the first slide tube.
The conversion tube comprises a base tube 61 and a sealing plate 62 fixedly arranged at one end of the base tube; a first blocking part 63 matched with the first sliding tube and a second blocking part 64 matched with the second sliding tube are arranged at one side end of the sealing plate, and an inner tube 65 positioned in the lumen of the base tube is arranged at the other side end of the sealing plate; the outer wall of the inner tube and the inner wall of the base tube are clamped to form a first working cavity 66, and the lumen of the inner tube forms a second working cavity 67; the first blocking part is provided with four first conversion holes 631 communicated with the first working chamber, and the second blocking part is provided with four second conversion holes 641 communicated with the second working chamber. The four first conversion holes and the four second conversion holes are uniformly distributed along the circumference of the base pipe.
The sealing plate drives the first conversion hole and the second conversion hole to rotate in the rotation process of the base pipe, and when the first conversion hole rotates to be communicated with the first through hole, the second blocking part blocks the second through hole; when the second conversion hole rotates to be communicated with the second through hole, the first blocking part blocks the first through hole.
The first through hole is arranged in a first convex pipe and a second convex pipe clamping space on the substrate, and the second through hole is arranged in a first convex pipe enclosing space on the substrate.
The first and second blocking portions are clamped to form an annular groove 68 which is adapted to the second slide tube, in which the second slide tube of the connector is inserted.
The first plugging part and the second plugging part are respectively provided with a sealing surface which is abutted on the base plate of the connector, and the sealing surfaces are in sliding sealing fit with the base plate.
An arc-shaped guide groove 551 is formed in the inner wall of the first sliding tube of the connector, and the guide groove is arranged along the circumferential direction of the first sliding tube; the outer peripheral wall of the base pipe is provided with a guide boss 69 located in the guide groove. The advantage of this structure is that: the guide boss rotates reciprocally in the guide groove along with the reciprocal rotation of the base pipe, and the positions of the first through hole, the second through hole, the first conversion hole and the second conversion hole are preset, so that when the guide boss rotates to the bottom in one direction, the first through hole is communicated with the first conversion hole, and the second through hole is blocked by the second conversion hole; when the guide boss rotates to the bottom in the other direction, the second through hole is communicated with the second conversion hole, and the first through hole is blocked from the first conversion hole; this configuration facilitates switching between the two operating states.
The inner wall of the first slide tube is also provided with a guide notch 552 arranged along the direction of the central line of the first slide tube, and a guide boss on the connecting head is in interference fit with the guide notch. The advantage of this structure is that: the base pipe and the connector can be assembled and matched in a plugging mode, the operation is simple and convenient, and the base pipe and the connector can be prevented from falling off in the rotating process.
The first working chamber radial cross-section is annular in shape and the second working chamber radial cross-section is circular in shape.
The embodiment has positive effects: the switching between the two functional states of sucking effusion and injecting medicine can be completed only by twisting the base tube to a preset angle.
Application example 1, injection medical device
The application example is a tympanostomy and intrathecal injection medical device manufactured by adopting the embodiment 1, and is shown in fig. 5 to 8, and the tympanostomy and intrathecal injection medical device comprises a first needle 1, a second needle 2, a first piston 3, a second piston 4 and the function conversion module described in the embodiment 1.
The first needle comprises a first connecting tube 11 and a first contact pin 12; the second needle comprises a second connecting tube 21 and a second contact pin 22; the second needle is arranged in the cavity of the first needle, the cavity of the second needle forms a second channel 23, and a first channel 13 is formed between the outer wall of the second needle and the inner wall of the first needle.
The function conversion module comprises a connector 5 and a conversion tube 6.
As shown in fig. 7 and 8, the connector includes a base plate 51, a first protruding tube 52 and a second protruding tube 53 disposed at one side end of the base plate, and a first sliding tube 54 and a second sliding tube 55 disposed at the other side end of the base plate; the second convex pipe is positioned in the pipe cavity of the first convex pipe, the first convex pipe is in sealing connection with the first connecting pipe, and the second convex pipe is in sealing connection with the second connecting pipe; the substrate is provided with four first through holes 511 communicating with the first channels and four second through holes 512 communicating with the second channels; the second slide tube is positioned in the lumen of the first slide tube. The four first through holes and the four second through holes are uniformly distributed along the circumferential direction of the first slide tube.
The transfer tube comprises a base tube 61 and a sealing plate 62 arranged at one end of the base tube; a first blocking part 63 matched with the first sliding tube and a second blocking part 64 matched with the second sliding tube are arranged at one side end of the sealing plate, and an inner tube 65 positioned in the lumen of the base tube is arranged at the other side end of the sealing plate; the outer wall of the inner tube and the inner wall of the base tube are clamped to form a first working cavity 66, and the lumen of the inner tube forms a second working cavity 67; the first blocking part is provided with four first conversion holes 631 communicated with the first working chamber, and the second blocking part is provided with four second conversion holes 641 communicated with the second working chamber. The four first conversion holes and the four second conversion holes are uniformly distributed along the circumference of the base pipe.
The first piston comprises a first sealing plug 31 and a first pull handle 32, and the first sealing plug and the first pull handle can slide back and forth along the first working cavity; the second piston comprises a second sealing plug 41 and a second pull handle 42, which are reciprocally slidable along the second working chamber.
The sealing plate drives the first conversion hole and the second conversion hole to circumferentially rotate along the base pipe in the rotation process of the function conversion module, and when the first conversion hole rotates to be communicated with the first through hole, the second blocking part blocks the second through hole; when the second conversion hole rotates to be communicated with the second through hole, the first blocking part blocks the first through hole.
The first through hole is arranged in a first convex pipe and a second convex pipe clamping space on the substrate, and the second through hole is arranged in a first convex pipe enclosing space on the substrate.
The first and second blocking portions are clamped to form an annular groove 68 which is adapted to the second slide tube, in which the second slide tube of the connector is inserted.
The first plugging part and the second plugging part are respectively provided with a sealing surface which is abutted on the base plate of the connector, and the sealing surfaces are in sliding sealing fit with the base plate.
An arc-shaped guide groove 551 is formed in the inner wall of the first sliding tube of the connector, and the guide groove is arranged along the circumferential direction of the first sliding tube; the outer peripheral wall of the base pipe is provided with a guide boss 69 located in the guide groove. The advantage of this structure is that: the guide boss rotates reciprocally in the guide groove along with the reciprocal rotation of the base pipe, and the positions of the first through hole, the second through hole, the first conversion hole and the second conversion hole are preset, so that when the guide boss rotates to the bottom in one direction, the first through hole is communicated with the first conversion hole, and the second through hole is blocked by the second conversion hole; when the guide boss rotates to the bottom in the other direction, the second through hole is communicated with the second conversion hole, and the first through hole is blocked from the first conversion hole; this configuration facilitates switching between the two operating states.
The inner wall of the first slide tube is also provided with a guide notch 552 arranged along the direction of the central line of the first slide tube, and a guide boss on the connecting head is in interference fit with the guide notch. The advantage of this structure is that: the base pipe and the connector can be assembled and matched in a plugging mode, the operation is simple and convenient, and the base pipe and the connector can be prevented from falling off in the rotating process.
The first working chamber radial cross-section is annular in shape and the second working chamber radial cross-section is circular in shape.
The first sealing plug is matched with the first working cavity, and the radial section of the first sealing plug is annular; the second sealing plug is adapted to the second working chamber with a circular shape in radial cross-section.
The radial section of the first pull handle is annular, and the first pull handle is sleeved on the inner tube.
The working principle of the application example is as follows: the second conversion hole is communicated with the second through hole, the first conversion hole is blocked from the first through hole, the second piston can slide back and forth in the inner tube of the function conversion module, namely the second working cavity, and the second needle, namely the first channel, the second working cavity of the function conversion module and the second piston are combined to form a syringe, so that the suction action can be completed; after the base pipe is twisted to a preset angle, the first conversion hole is communicated with the first through hole, the second conversion hole is blocked from the second through hole, the first piston can slide back and forth in the first working cavity of the function conversion module, and at the moment, the first channel, the first working cavity of the function conversion module and the first piston are combined to form another injector, so that another pumping action can be completed. The structure can complete the conversion of two functional states of sucking effusion and injecting medicine.
The above examples of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments.
Claims (1)
1. A functional conversion module for an injectable medical device, characterized by: comprises a connector and a conversion tube;
the connector comprises a substrate, a first convex pipe and a second convex pipe which are arranged at one side end of the substrate, and a first sliding pipe and a second sliding pipe which are arranged at the other side end of the substrate; the second convex tube is positioned in the lumen of the first convex tube;
the substrate is provided with four first through holes and four second through holes; the second slide tube is positioned in the tube cavity of the first slide tube;
the conversion tube comprises a base tube and a sealing plate arranged at one end of the base tube; one side end of the sealing plate is provided with a first blocking part matched with the first sliding tube and a second blocking part matched with the second sliding tube, and the other side end of the sealing plate is provided with an inner tube positioned in the lumen of the base tube; the outer wall of the inner tube and the inner wall of the base tube are clamped to form a first working cavity, and the lumen of the inner tube forms a second working cavity;
the first plugging part is provided with four first conversion holes communicated with the first working cavity, and the second plugging part is provided with four second conversion holes communicated with the second working cavity;
when the first conversion hole rotates to be communicated with the first through hole in the rotating process of the sealing plate along with the base pipe, the second blocking part blocks the second through hole; when the second conversion hole rotates to be communicated with the second through hole, the first blocking part blocks the first through hole;
the first through hole is arranged in a first convex pipe and a second convex pipe closing space on the substrate, and the second through hole is arranged in a first convex pipe closing space on the substrate; the first blocking part and the second blocking part are clamped to form an annular groove matched with the second sliding tube, and the second sliding tube of the connector is inserted into the annular groove; the first blocking part and the second blocking part are respectively provided with a sealing surface which is abutted on the base plate of the connector, and the sealing surfaces are in sliding sealing fit with the base plate;
an arc-shaped guide groove is formed in the inner wall of the first sliding tube of the connector, and the guide groove is arranged along the circumferential direction of the first sliding tube; a guide boss positioned in the guide groove is arranged on the peripheral wall of the base pipe; the inner wall of the first slide tube is also provided with a guide notch arranged along the central line direction of the first slide tube, and the guide notch is in interference fit with the guide boss; when the guide boss rotates to the bottom in one direction, the first through hole is communicated with the first conversion hole, and the second through hole is blocked by the second conversion hole; when the guide boss rotates to the bottom in the other direction, the second through hole is communicated with the second conversion hole, and the first through hole is blocked from the first conversion hole;
the four first through holes and the four second through holes are uniformly distributed along the circumferential direction of the first sliding tube, and the four first conversion holes and the four second conversion holes are uniformly distributed along the circumferential direction of the base tube; the first working chamber radial cross-section is annular in shape and the second working chamber radial cross-section is circular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010665808.7A CN111991624B (en) | 2018-05-03 | 2018-05-03 | Function conversion module for injection medical device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010665808.7A CN111991624B (en) | 2018-05-03 | 2018-05-03 | Function conversion module for injection medical device |
| CN201810415100.9A CN108451716B (en) | 2018-05-03 | 2018-05-03 | Function conversion module for an injection medical device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810415100.9A Division CN108451716B (en) | 2018-05-03 | 2018-05-03 | Function conversion module for an injection medical device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111991624A CN111991624A (en) | 2020-11-27 |
| CN111991624B true CN111991624B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010665808.7A Active CN111991624B (en) | 2018-05-03 | 2018-05-03 | Function conversion module for injection medical device |
| CN201810415100.9A Active CN108451716B (en) | 2018-05-03 | 2018-05-03 | Function conversion module for an injection medical device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810415100.9A Active CN108451716B (en) | 2018-05-03 | 2018-05-03 | Function conversion module for an injection medical device |
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| Country | Link |
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| CN (2) | CN111991624B (en) |
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| TWI576133B (en) * | 2016-08-08 | 2017-04-01 | Safe infusion connection | |
| US20180050172A1 (en) * | 2016-08-22 | 2018-02-22 | John Farley | Continuous bladder irrigation adaptor for a foley catheter |
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2018
- 2018-05-03 CN CN202010665808.7A patent/CN111991624B/en active Active
- 2018-05-03 CN CN201810415100.9A patent/CN108451716B/en active Active
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| EP0363338A2 (en) * | 1988-10-03 | 1990-04-11 | HEIMREID, Ken | Dosing/mixing syringe |
| CN107349050A (en) * | 2016-01-23 | 2017-11-17 | 王翠兰 | Auripuncture, Injection in Tympanic Cavity medical treatment device |
| CN106038053A (en) * | 2016-07-05 | 2016-10-26 | 颜繁诚 | Retrobulbar drug injection device |
| CN106620964A (en) * | 2016-11-29 | 2017-05-10 | 温州医科大学 | Emptying type syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108451716A (en) | 2018-08-28 |
| CN108451716B (en) | 2020-09-29 |
| CN111991624A (en) | 2020-11-27 |
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