CN113289137B - Implantable medical device based on self-sealing plug structure - Google Patents
Implantable medical device based on self-sealing plug structure Download PDFInfo
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- CN113289137B CN113289137B CN202110565081.XA CN202110565081A CN113289137B CN 113289137 B CN113289137 B CN 113289137B CN 202110565081 A CN202110565081 A CN 202110565081A CN 113289137 B CN113289137 B CN 113289137B
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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
- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/155—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by gas introduced into the reservoir
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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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses an implantable medical device based on a self-sealing plug structure, relates to the technical field of medical application, and solves the problem that the currently used medical device is mainly assembled and contained in a body through a thread structure and does not have the function of quickly injecting liquid medicine into local blood vessels. An implantable medical device based on a self-sealing plug structure comprises a blood vessel implanting shell A which is in a semi-cylindrical structure; the blood vessel implanting shell B is of a semi-cylindrical structure and is consistent with the blood vessel implanting shell A, and the blood vessel implanting shell A and the blood vessel implanting shell B can be fixedly connected through bolts; the blood vessel is planted shell B's the middle integral type in the outside and is provided with the needle guide pipe, plants shell A and blood vessel through being provided with the blood vessel and plants shell B, can provide and carry out the function that quick liquid medicine was injected into to local blood vessel, and the piston dish passes check valve B with the inside gas in gas storehouse and inputs and carry out the pressure boost in the cartridge case, is favorable to quick infusion to can change dressings as required fast and mend medicine.
Description
Technical Field
The invention relates to the technical field of medical application, in particular to an implantable medical device based on a self-sealing plug structure.
Background
The implanted medical device is mainly used for patients needing long-term regular infusion, and can be arranged in a human body when the patients are in special conditions, so that convenience is provided for medical treatment; implantable medical devices are widely used for treating diseases of nervous systems, cardiac systems and the like. Implantable medical devices include deep brain electrical stimulation, implantable cortical stimulation, implantable spinal electrical stimulation, implantable sacral electrical stimulation, implantable vagal electrical stimulation, implantable cardiac electrical stimulation systems (commonly referred to as cardiac pacemakers), implantable drug infusion systems, and the like.
Through search, for example, patent No. CN211214989U discloses a self-sealing plug structure for an implantable medical device, which includes a mounting hole formed in a connector portion of a stimulator, a first sealing ring, a pressing member, and a second sealing ring, wherein the pressing member causes the first sealing ring to generate a pressure along a radial direction of the mounting hole, and causes the second sealing ring to generate a pressure parallel to an axial direction of the mounting hole, thereby realizing sealing of an inner wall of the mounting hole. The self-sealing plug structure of the embodiment does not need to depend on a screw structure, and one sealing can be added on the basis of sealing provided by the screw. The whole structure does not need to be coated with glue, so that the assembly time can be saved; the material and the structure have good adaptability and are harmless to human bodies; the sealing performance is good, the damage is not easy to occur, and the service life of the implanted medical device can be prolonged.
However, the medical device that uses at present mainly assembles and accomodates in vivo through helicitic texture, does not possess the function of carrying out quick liquid medicine injection to local blood vessel, does not possess the function of changing dressings as required fast and mend medicine, does not possess swift liquid medicine flow direction control assembly, is unfavorable for independently infusing, consequently, does not satisfy current demand, to this we have proposed the implanted medical device based on self sealss sealing plug structure.
Disclosure of Invention
Problem (A)
The invention aims to provide an implantable medical device based on a self-sealing plug structure, and aims to solve the problems that the currently used medical device in the background technology is mainly assembled and contained in a body through a thread structure, does not have the function of quickly injecting liquid medicine into local blood vessels, does not have the function of quickly changing and replenishing medicine according to needs, does not have a quick liquid medicine flow direction control assembly, and is not beneficial to autonomous transfusion.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: an implantable medical device based on a self-sealing plug structure comprises a blood vessel implanting shell A;
the blood vessel implanting shell B is of a semi-cylindrical structure and is consistent with the blood vessel implanting shell A in shape, and the blood vessel implanting shell A and the blood vessel implanting shell B can be fixedly connected through bolts; a needle guide tube is integrally arranged in the middle of the outer side of the blood vessel implanting shell B;
the main body of the sliding bar is of a circular ring structure, four groups of convex strips are arranged in the middle of the sliding bar and fixedly connected with each other, the outer sides of two ends of the sliding bar are provided with flange structures, and the sliding bar is arranged on the outer side of the needle guide tube in a sliding manner;
the medical adhesive strip is arranged on the outer side of the needle guide tube in a sliding manner;
the main body of the control bin is of a square shell structure, and one side of the control bin is connected with a binding belt.
Preferably, the blood vessel implanting shell B also comprises a sealing plug; the outer end of the needle guide tube is provided with a sunken thread structure, and the outer side of the sunken thread structure is provided with four groups of square grooves; a sealing plug is fixedly arranged in the middle of the needle guide tube; the sliding row is arranged outside the concave thread structure of the needle guide tube in a sliding mode.
Preferably, the sliding row comprises a middle sleeve, a one-way valve A, an input needle, a nut and an end cover; the convex strips of the sliding row are arranged in the square grooves of the needle guide tubes in a sliding manner; the middle of the sliding row is fixedly provided with a middle sleeve, and the middle of the middle sleeve is fixedly provided with a one-way valve A; an input needle is fixedly arranged at one end of the one-way valve A, and the input needle is connected with the sealing plug in a sliding manner; a rotating nut is rotatably arranged on the outer side of the sliding row; an end cover is fixedly arranged in the middle of the outer end of the sliding row.
Preferably, the check valve a further comprises a delivery pipe and a guide sheet; the outer side of the one-way valve A is connected with a conveying pipe, and two groups of guide pieces are integrally arranged outside the conveying pipe; a square hole structure is arranged in the middle of the guide sheet; a self-locking valve is arranged between the two groups of guide sheets.
Preferably, the medical adhesive strip also comprises absorbent cotton; a T-shaped round sleeve is fixedly arranged on one side of the middle of the medical sticking strip, absorbent cotton is stuck in the middle of the other side of the medical sticking strip, and the T-shaped round sleeve is arranged on the outer side of the needle guide tube in a sliding mode.
Preferably, the control bin further comprises a threaded plug, a gas pipe and a one-way valve B; the middle of the bottom of the control bin is fixedly provided with a threaded plug, the middle of the threaded plug is fixedly provided with a gas pipe, and the bottom end of the conveying pipe is fixedly arranged in the middle of the threaded plug; the top of the gas pipe is connected with a one-way valve B, and one end of the one-way valve B is provided with a conical hopper; the outer side of the control bin is fixedly provided with an air bin, and a conical hopper of the one-way valve B is communicated with the air bin; the bottom integral type of accuse storehouse is provided with a screw thread section of thick bamboo structure, and the outer end of screw thread section of thick bamboo structure is fixed and is provided with the cartridge case.
Preferably, the gas cabin further comprises a piston disc, a one-way valve C, a filter cotton column, an end piece and a ring net; the main body of the gas cabin is of a cylindrical structure, a piston disc is arranged inside the piston disc in a sliding mode, a cylindrical structure is integrally arranged in the middle of one side of the piston disc, and a check valve C and a filter cotton column are fixedly arranged inside the cylindrical structure; the outer end of the cylindrical structure of the gas bin is fixedly provided with end pieces through two groups of connecting columns, and a ring net is fixedly arranged between the end pieces and the cylindrical structure of the gas bin; the volume of the air chamber is smaller than that of the medicine cylinder.
Preferably, the self-locking valve further comprises a frame block, a guide pillar, a pressing sheet, a spring ring groove A, a spring ring groove B and a guide strip; the number of the frame blocks is two, two groups of guide posts are fixedly arranged on one side of the frame blocks, and the frame blocks are connected in a sliding mode through the two groups of guide posts in a staggered penetrating mode; the other end of the guide post is fixedly provided with a pressing sheet; a spring ring groove A is formed in the middle of the outer side of the frame block, a spring ring groove B is formed in the inner side of the pressing sheet, and a spring is arranged between the spring ring groove A and the spring ring groove B; four groups of guide strips are fixedly arranged on the outer sides of the frame block and the pressing sheet, and the guide strips penetrate through the guide sheets and are in sliding connection.
(III) advantageous effects
The invention provides an implantable medical device based on a self-sealing plug structure, which is provided with a blood vessel implanting shell A and a blood vessel implanting shell B, can provide a function of quickly injecting liquid medicine into local blood vessels, inputs the liquid medicine into a medicine cylinder, and then installs the medicine cylinder; pull open the piston dish, produce the negative pressure in the inside of gas storehouse, then during the outside air passed the looped netowrk and the dual filtration entering gas storehouse of filter pulp post, then impel the piston dish, the piston dish passes the inside gas in gas storehouse through check valve B and carries out the pressure boost in the input cartridge case, is favorable to quick infusion to can change dressings as required fast and mend medicine.
Secondly, the arrangement of the self-locking valve provides a quick liquid medicine flow direction control function for the medical device, two groups of pressing sheets are pressed, the two groups of pressing sheets are combined with the frame blocks, the springs of the spring ring groove A and the spring ring groove B are locked, the two groups of frame blocks are loosened, and liquid medicine in the medicine cylinder passes through the conveying pipe, the one-way valve A and the input needle to be input into a blood vessel of a human body, so that the injection of medicine is realized, and the subsequent medical treatment is facilitated; after the transfusion is finished, the sliding row is reset by reversing the rotating nut, the input needle is drawn out for reuse, and the input needle can be replaced by detaching the sliding row.
Moreover, the arrangement of the rotating nut provides a convenient control function for the medical device, the rotating nut is rotated to drive the sliding row to move, the sliding row is sleeved in the needle guide tube to move in the middle of the sliding row, and the input needle is inserted into a blood vessel of a human body, so that the automatic transfusion is facilitated.
Drawings
FIG. 1 is a schematic overall perspective view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of an overall axial side configuration in an embodiment of the invention;
FIG. 3 is a partial cross-sectional structural schematic view of an embodiment of the present invention;
FIG. 4 is a schematic sectional view of a control cabin according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional structural view of an air box according to an embodiment of the present invention;
FIG. 6 is a schematic perspective view of a latching valve according to an embodiment of the present invention;
FIG. 7 is a partially disassembled structural schematic view in an embodiment of the present invention;
FIG. 8 is a schematic perspective view of a vascular graft shell B according to an embodiment of the present invention;
in fig. 1 to 8, the correspondence between the part names or lines and the reference numbers is:
1. a vascular graft shell A; 2. a vascular graft shell B; 201. a needle guide tube; 202. a sealing plug; 3. sliding the row; 301. an intermediate sleeve; 302. a one-way valve A; 3021. a delivery pipe; 3022. a guide piece; 303. an input needle; 304. rotating the nut; 305. an end cap; 4. medical sticking strips; 401. cotton wool; 5. controlling the bin; 501. a binding belt; 502. a threaded plug; 503. a gas delivery pipe; 504. a check valve B; 6. a cartridge; 7. a gas bin; 701. a piston disc; 702. a check valve C; 703. a filter cotton column; 704. an end piece; 705. a ring network; 8. a self-locking valve; 801. a frame block; 802. a guide post; 803. tabletting; 804. a spring ring groove A; 805. a spring ring groove B; 806. and (4) a guide strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 8, an embodiment of the present invention includes: an implantable medical device based on a self-sealing plug structure comprises a blood vessel implanting shell A1; the blood vessel implanting shell B2 is of a semi-cylindrical structure, the shape of the blood vessel implanting shell B2 is consistent with that of the blood vessel implanting shell A1, and the blood vessel implanting shell A1 and the blood vessel implanting shell B2 can be fixedly connected through bolts; a needle guide tube 201 is integrally arranged in the middle of the outer side of the blood vessel implanting shell B2; the main body of the sliding row 3 is of a circular ring structure, four groups of convex strips are arranged in the middle of the sliding row and fixedly connected with each other, the outer sides of two ends of the sliding row 3 are of flange structures, and the sliding row 3 is arranged on the outer side of the needle guide tube 201 in a sliding manner; the medical adhesive tape 4 is arranged outside the needle guide tube 201 in a sliding manner; the blood vessel implanting shell B2 also comprises a sealing plug 202; the outer end of the needle guide tube 201 is provided with a sunken thread structure, and four groups of square grooves are formed in the outer side of the sunken thread structure; a sealing plug 202 is fixedly arranged in the middle of the needle guide tube 201; the slide row 3 is arranged outside the concave thread structure of the needle guide tube 201 in a sliding manner; the slide row 3, the middle sleeve 301, the one-way valve A302, the input needle 303, the nut 304 and the end cover 305; the convex strip of the sliding row 3 is arranged in the square groove of the needle guide tube 201 in a sliding way; the middle of the sliding row 3 is fixedly provided with a middle sleeve 301, and the middle of the middle sleeve 301 is fixedly provided with a one-way valve A302; one end of the one-way valve A302 is fixedly provided with an input needle 303, and the input needle 303 is connected with the sealing plug 202 in a sliding manner; a rotating nut 304 is rotatably arranged on the outer side of the sliding row 3, and the rotating nut 304 is in threaded connection with an external sunken threaded structure of the guide pin pipe 201; an end cover 305 is fixedly arranged in the middle of the outer end of the slide bar 3; the one-way valve a302 further comprises a delivery pipe 3021 and a guide piece 3022; the outer side of the one-way valve A302 is connected with a delivery pipe 3021, and two groups of guide pieces 3022 are integrally arranged outside the delivery pipe 3021; a square hole structure is arranged in the middle of the guide piece 3022; the medical adhesive strip 4 also comprises absorbent cotton 401; a T-shaped round sleeve is fixedly arranged on one side of the middle of the medical sticking strip 4, absorbent cotton 401 is stuck in the middle of the other side of the medical sticking strip 4, and the T-shaped round sleeve is slidably arranged on the outer side of the needle guide tube 201; a self-locking valve 8 is arranged between the two groups of guide sheets 3022; the main body of the control bin 5 is of a square shell structure, and one side of the control bin 5 is connected with a binding belt 501; the control cabin 5 also comprises a threaded plug 502, an air conveying pipe 503 and a one-way valve B504; a threaded plug 502 is fixedly arranged in the middle of the bottom of the control bin 5, an air conveying pipe 503 is fixedly arranged in the middle of the threaded plug 502, and the bottom end of the conveying pipe 3021 is fixedly arranged in the middle of the threaded plug 502; the top of the gas pipe 503 is connected with a one-way valve B504, and one end of the one-way valve B504 is provided with a conical hopper; an air bin 7 is fixedly arranged on the outer side of the control bin 5, and a conical hopper of the one-way valve B504 is communicated with the air bin 7; the bottom integral type of accuse storehouse 5 is provided with a screw thread section of thick bamboo structure, and the outer end of screw thread section of thick bamboo structure is fixed and is provided with cartridge case 6.
Wherein, the gas cabin 7 also comprises a piston disc 701, a one-way valve C702, a filter cotton column 703, an end piece 704 and a looped network 705; the main body of the air bin 7 is of a cylindrical structure, a piston disc 701 is arranged inside the piston disc 701 in a sliding mode, a cylindrical structure is integrally arranged in the middle of one side of the piston disc 701, and a check valve C702 and a filter cotton column 703 are fixedly arranged inside the cylindrical structure; the outer end of the cylindrical structure of the gas bin 7 is fixedly provided with end pieces 704 through two groups of connecting columns, and a ring net 705 is fixedly arranged outside between the end pieces 704 and the cylindrical structure of the gas bin 7; the volume of the air chamber 7 is smaller than the cartridge 6.
The self-locking valve 8 further comprises a frame block 801, a guide pillar 802, a pressing sheet 803, a spring ring groove A804, a spring ring groove B805 and a guide strip 806; the number of the frame blocks 801 is two, two groups of guide posts 802 are fixedly arranged on one side of the frame blocks 801, and the frame blocks 801 are in staggered penetrating sliding connection through the two groups of guide posts 802; the other end of the guide post 802 is fixedly provided with a pressing sheet 803; a spring ring groove A804 is formed in the middle of the outer side of the frame block 801, a spring ring groove B805 is formed in the inner side of the pressing sheet 803, and a spring is arranged between the spring ring groove A804 and the spring ring groove B805; four groups of guide strips 806 are fixedly arranged on the outer sides of the frame blocks 801 and the pressing sheets 803, and the guide strips 806 are connected in a sliding manner through the guide sheets 3022.
The working principle is as follows: when in use, the medical adhesive strip 4 is fixed at the wound of a patient, the blood vessel implanting shell A1 and the blood vessel implanting shell B2 are combined and arranged outside a blood vessel, and the restraining belt 501 is bound outside the arm of the patient; the medicine liquid is input into the medicine cylinder 6, and then the medicine cylinder 6 is installed; the piston disc 701 is pulled open, negative pressure is generated inside the gas cabin 7, then outside air enters the gas cabin 7 through double filtration of the looped network 705 and the filter cotton column 703, then the piston disc 701 is pushed in, and the piston disc 701 inputs the air inside the gas cabin 7 into the cartridge 6 through the one-way valve B504 for pressurization.
The rotating nut 304 is rotated, the rotating nut 304 drives the sliding bar 3 to move, the sliding bar 3 is matched with the middle sleeve 301 to move in the guide needle tube 201, and the input needle 303 is inserted into a blood vessel of a human body.
The two groups of pressing sheets 803 are pressed, the two groups of pressing sheets 803 and the rack blocks 801 are combined, the springs of the spring ring grooves A804 and the spring ring grooves B805 are locked, the two groups of rack blocks 801 are loosened, and the liquid medicine in the medicine cylinder 6 passes through the delivery pipe 3021, the one-way valve A302 and the input needle 303 to be input into the blood vessel of the human body, so that the injection of the medicine is realized, and the subsequent medical treatment is facilitated; after the completion of the infusion, the luer lock 304 is reversed to reset the slider 3, the input needle 303 is drawn out for reuse, and the input needle 303 can be replaced by detaching the slider 3.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. Implantable medical device based on self sealss sealing plug structure, its characterized in that includes:
vascular graft shell a (1);
the blood vessel implanting shell B (2) is of a semi-cylindrical structure, the shape of the blood vessel implanting shell B is consistent with that of the blood vessel implanting shell A (1), and the blood vessel implanting shell A (1) and the blood vessel implanting shell B (2) can be fixedly connected through bolts; a needle guide tube (201) is integrally arranged in the middle of the outer side of the blood vessel implanting shell B (2);
the main body of the sliding bar (3) is of a circular ring structure, four groups of convex strips are arranged in the middle of the sliding bar (3) and fixedly connected with each other, the outer sides of two ends of the sliding bar (3) are of flange structures, and the sliding bar (3) is arranged on the outer side of the needle guide tube (201) in a sliding manner;
the medical adhesive strip (4) is arranged on the outer side of the needle guide tube (201) in a sliding manner;
the main body of the control bin (5) is of a square shell structure, and one side of the control bin (5) is connected with a binding belt (501);
the blood vessel implanting shell B (2) also comprises a sealing plug (202); the outer end of the needle guide tube (201) is provided with a sunken thread structure, and the outer side of the sunken thread structure is provided with four groups of square grooves; a sealing plug (202) is fixedly arranged in the middle of the needle guide tube (201); the sliding row (3) is arranged outside the concave thread structure of the needle guide tube (201) in a sliding manner;
the sliding row (3) comprises a middle sleeve (301), a one-way valve A (302), an input needle (303), a nut (304) and an end cover (305); the convex strips of the sliding row (3) are arranged in the square groove of the needle guide tube (201) in a sliding manner; the middle of the sliding row (3) is fixedly provided with a middle sleeve (301), and the middle of the middle sleeve (301) is fixedly provided with a one-way valve A (302); one end of the one-way valve A (302) is fixedly provided with an input needle (303), and the input needle (303) is connected with the sealing plug (202) in a sliding way; a rotating nut (304) is rotatably arranged on the outer side of the sliding row (3); an end cover (305) is fixedly arranged in the middle of the outer end of the sliding row (3).
2. The implantable medical device based on the self-sealing plug structure of claim 1, wherein: the check valve A (302) also comprises a delivery pipe (3021) and a guide piece (3022); the outer side of the one-way valve A (302) is connected with a delivery pipe (3021), and two groups of guide pieces (3022) are integrally arranged outside the delivery pipe (3021); a square hole structure is arranged in the middle of the guide sheet (3022); a self-locking valve (8) is arranged between the two groups of guide sheets (3022).
3. The implantable medical device based on the self-sealing plug structure of claim 1, wherein: the medical sticking strip (4) also comprises absorbent cotton (401); a T-shaped round sleeve is fixedly arranged on one side of the middle of the medical sticking strip (4), absorbent cotton (401) is stuck in the middle of the other side of the medical sticking strip (4), and the T-shaped round sleeve is arranged on the outer side of the needle guide tube (201) in a sliding mode.
4. The implantable medical device based on the self-sealing plug structure of claim 1, wherein: the control cabin (5) also comprises a threaded plug (502), an air conveying pipe (503) and a one-way valve B (504); a threaded plug (502) is fixedly arranged in the middle of the bottom of the control bin (5), an air conveying pipe (503) is fixedly arranged in the middle of the threaded plug (502), and the bottom end of the conveying pipe (3021) is fixedly arranged in the middle of the threaded plug (502); the top of the gas transmission pipe (503) is connected with a one-way valve B (504), and one end of the one-way valve B (504) is provided with a conical hopper; an air bin (7) is fixedly arranged on the outer side of the control bin (5), and a conical hopper of the one-way valve B (504) is communicated with the air bin (7); the bottom of the control bin (5) is integrally provided with a thread cylinder structure, and the outer end of the thread cylinder structure is fixedly provided with a cartridge (6).
5. The implantable medical device based on the self-sealing plug structure of claim 4, wherein: the gas bin (7) further comprises a piston disc (701), a one-way valve C (702), a filter cotton column (703), an end piece (704) and a looped network (705); the main body of the air bin (7) is of a cylindrical structure, a piston disc (701) is arranged in the piston disc (701) in a sliding mode, a cylindrical structure is integrally arranged in the middle of one side of the piston disc (701), and a check valve C (702) and a filter cotton column (703) are fixedly arranged in the cylindrical structure; the outer end of the cylindrical structure of the gas bin (7) is fixedly provided with end pieces (704) through two groups of connecting columns, and a ring net (705) is fixedly arranged between the end pieces (704) and the cylindrical structure of the gas bin (7); the volume of the air chamber (7) is smaller than that of the medicine cylinder (6).
6. The implantable medical device based on the self-sealing plug structure of claim 2, wherein: the self-locking valve (8) also comprises a frame block (801), a guide pillar (802), a pressing sheet (803), a spring ring groove A (804), a spring ring groove B (805) and a guide strip (806); the number of the frame blocks (801) is two, two groups of guide posts (802) are fixedly arranged on one side of each frame block (801), and the frame blocks (801) are connected in a staggered, penetrating and sliding mode through the two groups of guide posts (802); the other end of the guide post (802) is fixedly provided with a pressing sheet (803); a spring ring groove A (804) is formed in the middle of the outer side of the frame block (801), a spring ring groove B (805) is formed in the inner side of the pressing sheet (803), and a spring is arranged between the spring ring groove A (804) and the spring ring groove B (805); four groups of guide strips (806) are fixedly arranged on the outer sides of the frame block (801) and the pressing sheet (803), and the guide strips (806) penetrate through the guide sheets (3022) to be connected in a sliding mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110565081.XA CN113289137B (en) | 2021-05-24 | 2021-05-24 | Implantable medical device based on self-sealing plug structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110565081.XA CN113289137B (en) | 2021-05-24 | 2021-05-24 | Implantable medical device based on self-sealing plug structure |
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| CN113289137A CN113289137A (en) | 2021-08-24 |
| CN113289137B true CN113289137B (en) | 2022-10-18 |
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