CN108451716B - Function conversion module for an injection medical device - Google Patents
Function conversion module for an injection medical device Download PDFInfo
- Publication number
- CN108451716B CN108451716B CN201810415100.9A CN201810415100A CN108451716B CN 108451716 B CN108451716 B CN 108451716B CN 201810415100 A CN201810415100 A CN 201810415100A CN 108451716 B CN108451716 B CN 108451716B
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- conversion
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- base
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 66
- 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 38
- 230000000903 blocking effect Effects 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000006870 function Effects 0.000 description 17
- 239000003814 drug Substances 0.000 description 10
- 210000000959 ear middle Anatomy 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 210000003454 tympanic membrane Anatomy 0.000 description 7
- 210000003128 head Anatomy 0.000 description 5
- 206010033078 Otitis media Diseases 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 241000521257 Hydrops Species 0.000 description 3
- 206010030113 Oedema Diseases 0.000 description 3
- 208000005923 otitis media with effusion Diseases 0.000 description 3
- 208000024036 serous otitis media Diseases 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000028327 secretion Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000002388 eustachian tube Anatomy 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 239000012530 fluid Substances 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
- 208000027866 inflammatory 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
- 210000003800 pharynx Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- 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 pipe, wherein the connector is provided with a first connector and a second connector; the connector comprises a base plate, a first convex pipe and a second convex pipe which are arranged at one side end of the base plate, and a first sliding pipe and a second sliding pipe which are arranged at the other side end of the base plate; the substrate is provided with a first through hole and a second through hole; the conversion pipe comprises a base pipe and a seal plate arranged at one end of the base pipe; one side end of the sealing plate is provided with a first plugging part and a second plugging part, and the other side end of the sealing plate is provided with an inner pipe; the outer wall of the inner pipe and the inner wall of the base pipe are clamped to form a first working cavity, and the pipe cavity of the inner pipe 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 plugging part plugs 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 function conversions 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 an inflammatory disease of the middle ear characterized primarily by tympanites effusion and hearing loss. The main cause of the disease is the obstruction of the eustachian tube, and the secretions in the tympanic cavity can not be drained to the pharynx to form the effusion of the tympanic cavity. The effusion in the tympanic cavity is a mixture of leakage liquid, effusion and secretion. Removal of tympanometric fluid is critical to the treatment of secretory otitis media. Aspiration of tympanocentesis is the most common treatment for otitis media, and is simple and easy to implement. When secretory otitis media is treated, a second needle insertion and medicine injection is needed after conventional puncture liquid extraction, two holes are formed sometimes, and medicine flows back to the outer side of the tympanic membrane from the other needle hole during medicine injection; in addition, the secondary puncture also aggravates the puncture pain of the patient.
CN105496644A discloses a tympanocentesis, intratympanic injection medical device, comprising: 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, when effusion in the tympanic cavity needs to be sucked, the third connector of the suction device can be in threaded connection with the second connector of the second puncture device; when the liquid medicine needs to be injected into the tympanic cavity, the third connector of the suction device can be screwed out of 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 pjncture needle cover is established inside first pjncture needle, when first pjncture needle puncture patient's tympanic membrane, first pjncture needle can drive its inside second pjncture needle also puncture patient's tympanic membrane, first pjncture needle and second pjncture needle both only are formed with a puncture hole on patient's tympanic membrane, when needs aspirate the hydrops in the tympanic cavity or need to inject the liquid medicine to the tympanic cavity in, only need select corresponding connector (third connector or fourth connector) to be connected with the second connector can, need not form two holes on the tympanic membrane by the secondary puncture and cause the palirrhea outside to the tympanic membrane of liquid medicine, also can not increase the misery of puncture for the patient for the secondary puncture.
However, the medical device also has the following disadvantages: when the two functional states of sucking the accumulated liquid and injecting the medicine are switched, the other puncture device can be installed only after one puncture device is detached, so that the operation is complicated; in addition, because the needle head of the injection needle and the puncture needle also passes through the tympanic membrane to be positioned in the tympanic cavity during the switching operation, the complicated function switching operation easily causes the needle head to be mistakenly pricked to other parts in the ear due to the shaking of hands.
Disclosure of Invention
It is an object of the present invention to provide a function conversion module for an injectable medical device.
The technical scheme for realizing the purpose of the invention is as follows: a function switching module for an injection medical device comprises a connector and a switching tube; the connector comprises a base plate, a first convex pipe and a second convex pipe which are arranged at one side end of the base plate, and a first sliding pipe and a second sliding pipe which are arranged 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 substrate is provided with a first through hole and a second through hole; the second sliding tube is positioned in the tube cavity of the first sliding tube; the conversion pipe comprises a base pipe and a seal plate arranged at one end of the base pipe; one side end of the sealing plate is provided with a first plugging part matched with the first sliding pipe and a second plugging part matched with the second sliding pipe, and the other side end of the sealing plate is provided with an inner pipe positioned in the cavity of the base pipe; the outer wall of the inner pipe and the inner wall of the base pipe are clamped to form a first working cavity, and the pipe cavity of the inner pipe forms a second working cavity; the first plugging part is provided with a first conversion hole communicated with the first working cavity, and the second plugging part is provided with a second conversion hole communicated with the second working cavity; when the sealing plate rotates along with the base pipe and the first conversion hole is communicated with the first through hole, the second plugging part plugs 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.
Among the above-mentioned technical scheme, first through-hole setting is in first stand pipe and the second stand pipe clamping space on the base plate, and the second through-hole setting is in the first stand pipe enclosure space on the base plate.
In the technical scheme, the first blocking part and the second blocking part are clamped to form an annular groove matched with the second sliding pipe, and the second sliding pipe of the connector is inserted into the annular groove.
In the above technical solution, the first plugging portion and the second plugging portion are both provided with a sealing surface abutting against the base plate of the connector, and the sealing surface is in sliding sealing fit with the base plate.
In the technical scheme, an arc-shaped guide groove is formed in the inner wall of the first sliding pipe of the connector and is arranged along the circumferential direction of the first sliding pipe; the peripheral wall of the base tube is provided with a guide boss positioned in the guide groove.
Among the above-mentioned technical scheme, still be equipped with on the inner wall of first slide pipe and set up at the direction breach along first slide pipe central line direction, direction boss and the direction breach interference fit on the connector.
In the technical scheme, the radial section of the first working cavity is annular, and the radial section of the second working cavity is circular.
The invention has the positive effects that: the conversion of two functional states of sucking hydrops 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 when viewed from another angle;
FIG. 3 is an exploded view of the function transformation module shown in FIG. 2;
FIG. 4 is an exploded view of the function transformation module shown in FIG. 3 from another perspective;
FIG. 5 is a perspective view of an injectable medical device made using the function conversion module of FIG. 1;
FIG. 6 is a schematic half-section view 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 signs are: the first needle 1, the first connecting tube 11, the first insert 12, the first passage 13, the second needle 2, the second connecting tube 21, the second insert 22, the second passage 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 convex tube 52, the second convex tube 53, the first sliding tube 54, the second sliding tube 55, the guide groove 551, the guide notch 552, the transition tube 6, the base tube sealing plate 61, 62, the first blocking part 63, the first transition hole 631, the second blocking part 64, the second transition hole 641, the inner tube 65, the first working cavity 66, the second working cavity 67, the annular groove 68, and the guide boss 69.
Detailed Description
(embodiment 1, function conversion Module)
The present embodiment is a function switching module for an injection medical device, as shown in fig. 1 to 4, comprising a connection head 5 and a switching 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 pipe is positioned in the pipe cavity of the first convex pipe; the substrate is provided with four first through holes 511 and four second through holes 512; the second slide is located in the lumen of the first slide. The four first through holes and the four second through holes are evenly distributed along the circumferential direction of the first sliding pipe.
The conversion pipe comprises a base pipe 61 and a closing plate 62 fixedly arranged at one end of the base pipe; one side end of the sealing plate is provided with a first plugging part 63 matched with the first sliding pipe and a second plugging part 64 matched with the second sliding pipe, and the other side end of the sealing plate is provided with an inner pipe 65 positioned in the cavity of the base pipe; the outer wall of the inner pipe and the inner wall of the base pipe are clamped to form a first working cavity 66, and the pipe cavity of the inner pipe forms a second working cavity 67; the first blocking part is provided with four first conversion holes 631 communicated with the first working cavity, and the second blocking part is provided with four second conversion holes 641 communicated with the second working cavity. The four first conversion holes and the four second conversion holes are uniformly distributed along the circumferential direction of the base pipe.
The sealing plate drives the first conversion hole and the second conversion hole to rotate in the process of rotating along with the base pipe, and when the first conversion hole rotates to be communicated with the first through hole, the second plugging part plugs 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 clamping space of the first convex pipe and the second convex pipe on the base plate, and the second through hole is arranged in a space enclosed by the first convex pipe on the base plate.
The first blocking part and the second blocking part are clamped to form an annular groove 68 matched with the second sliding pipe, and the second sliding pipe of the connecting head is inserted into the annular groove.
The first plugging portion and the second plugging portion are provided with sealing surfaces which abut against 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 arranged on the inner wall of the first sliding pipe of the connector and is arranged along the circumferential direction of the first sliding pipe; the outer peripheral wall of the base pipe is provided with a guide boss 69 located in the guide groove. The advantages of this structure are: the guide boss rotates in the guide groove in a reciprocating manner along with the reciprocating rotation of the base pipe, and the first through hole is communicated with the first conversion hole and the second through hole is blocked when the guide boss rotates to the bottom in one direction by presetting the positions of the first through hole, the second through hole, the first conversion hole and 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 arrangement facilitates switching between the two operating states.
The inner wall of the first sliding pipe is further provided with a guide notch 552 which is arranged along the central line direction of the first sliding pipe, and a guide boss on the connector is in interference fit with the guide notch. The advantages of this structure are: the base pipe and the connector can be assembled and matched in an inserting mode, the operation is simple and convenient, and the base pipe can be prevented from falling off from the connector in the rotating process.
The first working chamber is annular in radial cross-section and the second working chamber is circular in radial cross-section.
The present embodiment has positive effects: the conversion of two functional states of sucking hydrops and injecting medicine can be completed only by twisting the base tube to a preset angle.
(application example 1, injection medical device)
The present application example is a tympanocentesis and intratympanic injection medical device manufactured according to the above embodiment 1, and as shown in fig. 5 to 8, includes a first needle 1, a second needle 2, a first piston 3, a second piston 4, and a function conversion module according to the above embodiment 1.
The first needle comprises a first connecting tube 11 and a first pin 12; the second needle comprises a second connecting tube 21 and a second inserting 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 switching module comprises a connecting head 5 and a switching tube 6.
As shown in fig. 7 and 8, the connecting head includes a base plate 51, a first convex pipe 52 and a second convex pipe 53 disposed at one side end of the base plate, and a first sliding pipe 54 and a second sliding pipe 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 communicated with the first channel and four second through holes 512 communicated with the second channel; the second slide is located in the lumen of the first slide. The four first through holes and the four second through holes are evenly distributed along the circumferential direction of the first sliding pipe.
The transfer tube comprises a base tube 61 and a closing plate 62 arranged at one end of the base tube; one side end of the sealing plate is provided with a first plugging part 63 matched with the first sliding pipe and a second plugging part 64 matched with the second sliding pipe, and the other side end of the sealing plate is provided with an inner pipe 65 positioned in the cavity of the base pipe; the outer wall of the inner pipe and the inner wall of the base pipe are clamped to form a first working cavity 66, and the pipe cavity of the inner pipe forms a second working cavity 67; the first blocking part is provided with four first conversion holes 631 communicated with the first working cavity, and the second blocking part is provided with four second conversion holes 641 communicated with the second working cavity. The four first conversion holes and the four second conversion holes are uniformly distributed along the circumferential direction 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 chamber; 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 rotate along the circumferential direction of the base pipe in the process of rotating along with the function conversion module, and when the first conversion hole rotates to be communicated with the first through hole, the second plugging part plugs 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 clamping space of the first convex pipe and the second convex pipe on the base plate, and the second through hole is arranged in a space enclosed by the first convex pipe on the base plate.
The first blocking part and the second blocking part are clamped to form an annular groove 68 matched with the second sliding pipe, and the second sliding pipe of the connecting head is inserted into the annular groove.
The first plugging portion and the second plugging portion are provided with sealing surfaces which abut against 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 arranged on the inner wall of the first sliding pipe of the connector and is arranged along the circumferential direction of the first sliding pipe; the outer peripheral wall of the base pipe is provided with a guide boss 69 located in the guide groove. The advantages of this structure are: the guide boss rotates in the guide groove in a reciprocating manner along with the reciprocating rotation of the base pipe, and the first through hole is communicated with the first conversion hole and the second through hole is blocked when the guide boss rotates to the bottom in one direction by presetting the positions of the first through hole, the second through hole, the first conversion hole and 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 arrangement facilitates switching between the two operating states.
The inner wall of the first sliding pipe is further provided with a guide notch 552 which is arranged along the central line direction of the first sliding pipe, and a guide boss on the connector is in interference fit with the guide notch. The advantages of this structure are: the base pipe and the connector can be assembled and matched in an inserting mode, the operation is simple and convenient, and the base pipe can be prevented from falling off from the connector in the rotating process.
The first working chamber is annular in radial cross-section and the second working chamber is circular in radial cross-section.
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 matched with the second working cavity, and the shape of the radial section of the second sealing plug is circular.
The shape of the radial section of the first pull handle is annular, and the first pull handle is sleeved on the inner pipe.
The working principle of the application example is as follows: as shown in fig. 6, at this time, the second switching hole is communicated with the second through hole, the first switching hole is blocked from the first through hole, the second piston can slide in the inner tube of the function switching module, i.e., the second working chamber, in a reciprocating manner, and at this time, the second needle, i.e., the first channel, the second working chamber of the function switching module and the second piston are combined to form an injector, so that the pumping 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 with the second through hole, the first piston can slide in the first working cavity of the function conversion module in a reciprocating mode, and at the moment, the first channel, the first working cavity of the function conversion module and the first piston are combined to form the other injector, so that the other pumping action can be completed. The structure can complete the conversion of two functional states of sucking accumulated liquid and injecting medicine.
The above examples of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments.
Claims (1)
1. A function conversion module for an injectable medical device, characterized by: comprises a connector and a switching tube;
the connector comprises a base plate, a first convex pipe and a second convex pipe which are arranged at one side end of the base plate, and a first sliding pipe and a second sliding pipe which are arranged 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 substrate is provided with a first through hole and a second through hole; the second sliding tube is positioned in the tube cavity of the first sliding tube;
the conversion pipe comprises a base pipe and a seal plate arranged at one end of the base pipe; one side end of the sealing plate is provided with a first plugging part matched with the first sliding pipe and a second plugging part matched with the second sliding pipe, and the other side end of the sealing plate is provided with an inner pipe positioned in the cavity of the base pipe; the outer wall of the inner pipe and the inner wall of the base pipe are clamped to form a first working cavity, and the pipe cavity of the inner pipe forms a second working cavity;
the first plugging part is provided with a first conversion hole communicated with the first working cavity, and the second plugging part is provided with a second conversion hole communicated with the second working cavity;
when the sealing plate rotates along with the base pipe and the first conversion hole is communicated with the first through hole, the second plugging part plugs 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 clamping space between the first convex pipe and the second convex pipe on the base plate, and the second through hole is arranged in a space enclosed by the first convex pipe on the base plate; the first blocking part and the second blocking part are clamped to form an annular groove matched with the second sliding pipe, and the second sliding pipe of the connector is inserted into the annular groove; the first plugging part and the second plugging part are respectively provided with a sealing surface which is abutted against the base plate of the connecting head, 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 pipe of the connector and is arranged along the circumferential direction of the first sliding pipe; the outer peripheral wall of the base tube is provided with a guide boss positioned in the guide groove; the inner wall of the first sliding pipe is also provided with a guide notch arranged along the central line direction of the first sliding pipe, and a guide boss on the connector is in interference fit with the guide notch; 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 from 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 by the first conversion hole.
Priority Applications (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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810415100.9A CN108451716B (en) | 2018-05-03 | 2018-05-03 | Function conversion module for an injection medical device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010665808.7A Division CN111991624B (en) | 2018-05-03 | 2018-05-03 | Function conversion module for injection medical device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108451716A CN108451716A (en) | 2018-08-28 |
| CN108451716B true CN108451716B (en) | 2020-09-29 |
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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 Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202010665808.7A Active CN111991624B (en) | 2018-05-03 | 2018-05-03 | Function conversion module for injection medical device |
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| CN (2) | CN111991624B (en) |
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| NO884377L (en) * | 1988-10-03 | 1990-04-04 | Ken Heimreid | Dosing / BLANDESPROEYTE. |
| US10207045B2 (en) * | 2008-06-26 | 2019-02-19 | Surgical Design Corporation | Surgical handpiece with disposable concentric lumen work tip |
| US8348106B2 (en) * | 2010-07-13 | 2013-01-08 | Hong Jen Wang | Fluid dispensing or feeding device |
| CN107569319A (en) * | 2016-01-23 | 2018-01-12 | 王翠兰 | Auripuncture, Injection in Tympanic Cavity medical treatment device |
| CN106038053B (en) * | 2016-07-05 | 2018-11-20 | 颜繁诚 | Medicine-filling device after eyeball |
| TWI576133B (en) * | 2016-08-08 | 2017-04-01 | Safe infusion connection | |
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- 2018-05-03 CN CN201810415100.9A patent/CN108451716B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108451716A (en) | 2018-08-28 |
| CN111991624B (en) | 2024-01-30 |
| CN111991624A (en) | 2020-11-27 |
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