CN201029954Y - Medicine-releasing electric capsule - Google Patents
Medicine-releasing electric capsule Download PDFInfo
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- CN201029954Y CN201029954Y CNU200620112050XU CN200620112050U CN201029954Y CN 201029954 Y CN201029954 Y CN 201029954Y CN U200620112050X U CNU200620112050X U CN U200620112050XU CN 200620112050 U CN200620112050 U CN 200620112050U CN 201029954 Y CN201029954 Y CN 201029954Y
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- medicine releasing
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Abstract
Provided is a medicine releasing electronic capsule, particularly relating to a device releasing the medicine into an alimentary canal. The utility model is used to slowly release substances which are medicine, food, marking objects and the like into the alimentary canal of animals or human bodies. The medicine releasing electronic capsule of the utility model comprises a casing, a power mechanism, a control circuit, a driving mechanism, a piston, and a medicine releasing passage mechanism. The driving mechanism of the medicine releasing electronic capsule comprises a minisize propeller which is composed of an igniter, a propellant tank, a spout and propellant. After the control circuit of the medicine releasing electronic capsule sends out a medicine releasing signal, the igniter is connected with a power circuit, then the igniter ignites the propellant, gas and heat are generated after the igniting of the propellant, the expanded gas blows off from the spout, and finally the medicine is released after the piston moving forward and opening the medicine releasing passage mechanism. The utility model can effectively avoid the negative pressure of air, and has the advantages of high reliability, simple structure and easy lot manufacture.
Description
Technical field:
This utility model relates to a kind of medicine releasing capsule, and particularly a kind of device that discharges medicine in digestive tract is used for putting material in the digestive tract remote control of animal or human's body, as medicine, food, label etc.
Background technology:
Electronic capsule is a kind of drug delivery system based on the micromechanics electronic technology, can be by external remote control, and the control medicine has excellent application value in gastral release time and off-position aspect clinical treatment, the medicine digestive tract Absorption Study.In Chinese patent CN1600279A, among the CN1209997B, the scheme of remote controlled electronic capsule is all disclosed, the current techniques scheme is between medicine holding bin and driving mechanism, circuit, have a piston, piston has good sealing property, does not enter controlling organization and circuit to guarantee medicinal liquid, when discharging medicine, the driving force of current techniques scheme is generally provided by the spring-like structure, and the spring of a compression is released the thrust driven plunger that the back produces, thereby medicine is released the release storehouse.
According to discovering of utility model people place research team, there is following problem in actual applications in current techniques: when piston during towards medicine holding bin one end motion, piston and driving mechanism, the airtight storehouse of control circuit one end will produce negative pressure, air in the described airtight storehouse is few more, the negative pressure that produces is just big more, for conserve space, capacity circuit devcie just often in the described airtight storehouse, the shared volume of air is considerably less, and according to calculating, the negative pressure that airtight storehouse produces is bigger, this negative pressure hinders piston advances forward, and in the process of piston advances forward, negative pressure also increases gradually, generally speaking can reach 5-10 newton, in order to overcome the influence of negative pressure, the driving force of driving mechanism must be enough powerful, in the capsular short space of miniature electronic, driving mechanism generally is microdevice, be difficult to provide enough powerful driving force, and the spring of enough driving forces must fix, and has further increased manufacture difficulty with stronger material; In addition, another problem of the negative pressure that airtight storehouse produces is, if piston is airtight slightly poor, negative pressure may suck medicinal liquid airtight storehouse, rather than be released into digestive tract, this situation often takes place in test, make the reliability of drug release reduce, in order to improve the airtight reliability of piston, the frictional force of piston and piston wall generally will increase, further increase the load of driving mechanism, further increased the manufacture difficulty of system again.
The utility model content:
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and can effectively overcome air negative pressure power, reliability height, simple in structure, a kind of medicine releasing capsule of being easy to make.
The technical solution of the utility model is: a kind of medicine releasing capsule, comprise shell, power sector, control circuit, driving mechanism, piston, the drug release passage mechanism, the driving mechanism that it is characterized in that described a kind of medicine releasing capsule comprises microdriver, this microdriver comprises lighter, the propellant storehouse, spout, propellant, after a kind of control circuit of medicine releasing capsule sends the release signal, lighter and power circuit are connected, lighter is lighted propellant, propellant is lighted the back and is produced gas and heat, expansible gas sprays from spout, the propulsive force that produces puts on the piston, piston advances forward is also opened the drug release passage mechanism, and drug release is come out.
Work process of the present utility model and principle are: described a kind of medicine releasing capsule is swallowed and is entered after the digestive tract, control circuit in the medicine releasing capsule receives after the remote signal of sending in the external world or self produces a control signal in the control circuit, lighter and power circuit are connected, lighter is lighted propellant, propellant is lighted the back and is produced gas and heat, thermal expansion gas sprays from spout, the propulsive force that produces puts on the piston, piston advances forward is also opened the drug release passage mechanism, and drug release is come out.
Described lighter can comprise a miniature thin-film resistance, its structure is: miniature thin-film resistance is metallic film or the semiconductor material thin film of thickness less than 0.1mmm, miniature thin-film resistance has the support base less than 0.2mm, the area of support base is greater than the area of film resistor, the edge of support base has the shoulder of support, form bridge architecture, the support base of miniature thin-film resistance position becomes bridge floor.Be the not moving air layer of well insulated below the above-mentioned bridge architecture, support base, help reducing heat radiation, make the temperature of miniature thin-film resistance raise fast.
Can cover one deck medicament that detonates on the described lighter, the cladding thickness of primary explosive is between 0.01-0.5mm.The purpose of medicament of detonating is to utilize the medicament that the detonates propellant that ignites, and the ignition temperature of the medicament that detonates is low, helps reducing the power consumption of lighter.
The bottom in described propellant storehouse and lighter distance are between 0.05～1mm, and the bottom in propellant storehouse has the round tube hole of diameter between 0.1-1mm.The purposes of described round tube hole is that detonate flame, the high-temperature gas of generation of medicament can enter the propellant storehouse by this through hole, thereby ignite propellant.The bottom in described propellant storehouse can comprise the one layer of polymeric thin film, and film thickness is less than 0.1mm.This thin polymer film can seal propellant, liquid propellant for example, and the flame of the generation of the medicament that detonates, high-temperature gas be the melt polymer thin film fast, and the propellant that ignites
Described a kind of medicine releasing capsule can comprise a slidingtype protective cover, described slidingtype protective cover comprises 2-5 the cylinder that diameter is different, pushing plate, rear bearing sheet, when the slidingtype protective cover is in contraction state, the big cylindrical cap of diameter is in the little cylinder outside of diameter, one end of cylinder has inside interior to chimb, an other end has outside export-oriented chimb, two contiguous cylinders, the interior internal diameter to chimb of the cylinder that diameter is big is less than the external diameter of the export-oriented chimb of the little cylinder of diameter, when the slidingtype protective cover is in extended state, when the big cylinder of diameter when one side slides into the end, interior formation with the export-oriented chimb that is positioned at cylinder wherein to chimb of this cylinder stops, each cylinder forms slidingtype and connects, end towards piston of the cylinder of diameter maximum is fixedly connected with pushing plate, end towards control circuit of the cylinder of diameter minimum is fixedly connected with rear bearing sheet, cylinder, pushing plate, rear bearing sheet constitutes an airtight storehouse, microdriver is packaged in this airtight storehouse, and the circuit line of microdriver passes rear bearing sheet and is connected with control circuit.The main uses of slidingtype protective cover is: (1) airtight effect.Microdriver is closed in wherein, can plays moisture-proof role, in addition, the thermal expansion gas that produces after the propellant combustion, residue etc. also are enclosed in wherein, further reduce entering gastral probability; (2) protective action.The cylinder of slidingtype protective cover, rear bearing sheet, pushing plate all utilize the material with good strength to form, as rustless steel, the thrust that produces after the propellant combustion is restricted to wherein, and slidingtype protective cover, capsule shell have constituted the twice protection, has further increased security of products.
Described a kind of medicine releasing capsule can comprise an elastic bellows, corrugated tube is fixedly connected with pushing plate towards an end of piston, corrugated tube is fixedly connected with rear bearing sheet towards an end of control circuit, corrugated tube, pushing plate, rear bearing sheet constitute an airtight storehouse, microdriver is packaged in this airtight storehouse, and the circuit line of microdriver passes rear bearing sheet and is connected with control circuit.The main uses of elastic bellows is airtight effect, and microdriver is closed in wherein, can play moisture-proof role, and in addition, the thermal expansion gas that produces after the propellant combustion, residue etc. also are enclosed in wherein, further reduces entering gastral probability; In addition, elastic bellows also can play certain protective action, and the thrust that produces after the propellant combustion is restricted to wherein, can increase security of products.
The power sector of described a kind of medicine releasing capsule can be the manifold type induction power supply, this power sector comprises energy coupling coil, resonance circuit, resonance circuit and control circuit are made as one, the electromagnetic wave energy that energy coupling coil coupling body external electromagnetic field generating means produces, by resonance circuit, induced electric energy is put on lighter.
This utility model compared with prior art has following technique effect:
1. a kind of medicine releasing capsule of the present utility model can effectively overcome air negative pressure power, has improved the reliability of system.
Driving mechanism has adopted microdriver, utilizes propellant to light the thermal expansion gas promotion piston that the back produces, and overcomes
Air negative pressure power problem in the current other technologies scheme, can reliably drug release be come out.
2. simple in structure, be easy to make in batches.Driving mechanism of the present utility model adopts microdriver, and this propeller is one
Individual independent devices and control circuit, other mechanisms of piston do not have complicated annexation, are easy to assembling, and are favourable
In making in batches.
Description of drawings:
Fig. 1 is the composition sketch map of a kind of medicine releasing capsule of the present utility model.
Fig. 2 is the process sketch map that a kind of medicine releasing capsule of the present utility model discharges medicine.
Fig. 3 is the structural representation after a kind of medicine releasing capsule of the present utility model is finished the drug release action.
Fig. 4 is a kind of structural representation of the microdriver of a kind of medicine releasing capsule of the present utility model.
Fig. 5 is a kind of structural representation of the microdriver of a kind of medicine releasing capsule of the present utility model.
Fig. 6 is the structural representation that contains a kind of medicine releasing capsule of slidingtype protective cover of the present utility model.
Fig. 7 is the drug release process sketch map that contains a kind of medicine releasing capsule of slidingtype protective cover of the present utility model.
Fig. 8 is the structural representation that contains a kind of medicine releasing capsule of corrugated tube of the present utility model.
Fig. 9 is the drug release process sketch map that contains a kind of medicine releasing capsule of corrugated tube of the present utility model.
Figure 10 is the structural representation with a kind of medicine releasing capsule of manifold type induction power supply of the present utility model.
Figure 11 is the electrical block diagram with a kind of medicine releasing capsule of manifold type induction power supply of the present utility model.
In Fig. 1 to Figure 11:
1-shell, 2-power sector, 3-control circuit, 4-piston, 5-release through hole,
6-sealing-plug, 7-microdriver, 8-lighter, 9-propellant storehouse, 10-propellant,
The 11-spout, the 12-medicine, 13-thermal expansion gas .14-miniature thin-film resistance, 15-support base,
16-supports shoulder, the 17-medicament that detonates, and the 18-through hole, 19-spout coverlay, 20-isolating membrane,
21-slidingtype protective cover, the 22-cylinder, the 23-pushing plate, 24-rear bearing sheet, 25-corrugated tube,
26-energy coupling coil, 27-coil brace, 28-resonance circuit.
The specific embodiment:
Embodiment 1:
A kind of medicine releasing capsule of present embodiment, comprise that shell 1, power sector 2, control circuit 3, piston 4, drug release passage mechanism comprise release through hole 5 and sealing-plug 6, the driving mechanism of described a kind of medicine releasing capsule comprises microdriver 7, and this microdriver comprises lighter 8, propellant storehouse 9, propellant 10, spout 11.Fig. 1 is the composition sketch map of present embodiment.
Present embodiment work process be: a kind of medicine releasing capsule is swallowed and is entered after the digestive tract, control circuit 3 in a kind of medicine releasing capsule receives after the remote signal of sending in the external world or self produces a control signal in the control circuit 3, lighter 8 and power sector 2 circuit are connected, lighter 8 is lighted propellant 10, propellant 10 is lighted the back and is produced gas and heat, thermal expansion gas 13 is from spout 11 ejections, the propulsive force that produces puts on the piston 4, piston 4 travels forward and pushes sealing-plug 6 open, and medicine 12 discharges from release through hole 5.Fig. 2 is the process sketch map that present embodiment discharges medicine, and Fig. 3 is the structural representation after present embodiment is finished the drug release action.
The lighter 8 of present embodiment comprises a miniature thin-film resistance 14, its structure is: miniature thin-film resistance 14 is metallic film or the semiconductor material thin film of thickness less than 0.05mmm, miniature thin-film resistance 14 has the support base 15 of 0.1mm, the area of support base 15 is greater than the area of film resistor, the edge of support base 15 has the shoulder of support 16, form bridge architecture, the support base 15 of miniature thin-film resistance 14 positions becomes bridge floor.Below the above-mentioned bridge architecture, support base 15 is the not moving air layer of well insulated, helps reducing heat radiation, makes the temperature of miniature thin-film resistance 14 raise fast.The processing technique of above-mentioned miniature thin-film resistance 14 can adopt the processing of body silicon and the bonded mode of surface processing technique of MEMS to make, and the material of support base 15, support shoulder 16 all can be selected silicon for use.In the present embodiment, can cover one deck medicament 17 that detonates on the lighter 8, the cladding thickness of the medicament 17 that detonates is at 0.05mm.The purpose of medicament of detonating is to utilize the medicament that the detonates propellant that ignites, and the ignition temperature of the medicament that detonates is low, helps reducing the power consumption of lighter, and present embodiment is selected the lead styphnate powder for use.In the present embodiment, the bottom in propellant storehouse 9 and lighter 8 distances are 0.2mm, the bottom in propellant storehouse 9 has the manhole 18 of a diameter at 0.5mm, the purposes of this through hole is that detonate flame, the high-temperature gas of generation of medicament can enter propellant storehouse 9 by this through hole, thereby ignites propellant 10.The spout place in propellant storehouse 9 can cover the spout coverlay 19 of one deck by polymeric material, and this coverlay is used to prevent that propellant from making moist or reveal, and the thickness of this coverlay is 0.1mm, after propellant is lighted, can be melted rapidly.Fig. 4 is a kind of structural representation of the microdriver in present embodiment.
The bottom in described propellant storehouse 9 also can comprise one deck isolating membrane 20, isolating membrane 20 thickness are 0.08mm, material is a thin polymer film, present embodiment adopts polyethylene film, this thin polymer film can seal propellant 10, liquid propellant for example, the flame of the generation of the medicament that detonates, high-temperature gas be the melt polymer thin film fast, and the propellant that ignites.Concrete structure is referring to Fig. 5.
The power sector 2 of present embodiment adopts button cell, and shell 1 is made for the Merlon with good biocompatibility, and the junction of shell 1 utilizes medical bonding agent to be adhesively fixed.A kind of medicine releasing capsule length of present embodiment is 32mm, and diameter is 11mm.
Embodiment 2:
The primary structure of present embodiment is identical with embodiment 1, difference is: a kind of medicine releasing capsule in the present embodiment comprises a slidingtype protective cover 21, described slidingtype protective cover 21 comprises 2-5 the cylinder 22 that diameter is different, pushing plate 23, rear bearing sheet 24, when slidingtype protective cover 21 is in contraction state, the big cylindrical cap of diameter is in the little cylinder outside of diameter, one end of cylinder has inside interior to chimb, an other end has outside export-oriented chimb, two contiguous cylinders, the interior internal diameter to chimb of the cylinder that diameter is big is less than the external diameter of the export-oriented chimb of the little cylinder of diameter, when slidingtype protective cover 21 is in extended state, when the big cylinder of diameter when one side slides into the end, interior formation with the export-oriented chimb that is positioned at cylinder wherein to chimb of this cylinder stops, each cylinder forms slidingtype and connects, end towards piston of the cylinder of diameter maximum is fixedly connected with pushing plate 23, end towards control circuit 3 of the cylinder of diameter minimum is fixedly connected with rear bearing sheet 24, cylinder 22, pushing plate 23, rear bearing sheet 24 constitutes an airtight storehouse, microdriver 7 is packaged in this airtight storehouse, and the circuit line of microdriver 7 passes rear bearing sheet 24 and is connected with control circuit 3.
The main uses of slidingtype protective cover 21 is: (1) airtight effect.Microdriver 7 is closed in wherein, can plays moisture-proof role, in addition, the thermal expansion gas 13 that propellant 10 burning backs produce, residue etc. also are enclosed in wherein, further reduce entering gastral probability; (2) protective action.The cylinder 22 of slidingtype protective cover 21, rear bearing sheet 23, pushing plate 24 all utilize the material with good strength to form, as rustless steel, the thrust that propellant 10 burning backs produce is restricted to wherein, slidingtype protective cover 21, capsule shell 1 have constituted the twice protection, have further increased security of products.
The power sector 2 of present embodiment adopts button cell, and shell 1 is made for the Merlon with good biocompatibility, and the junction of shell 1 utilizes medical bonding agent to be adhesively fixed.A kind of medicine releasing capsule length of present embodiment is 29mm, and diameter is 10mm.
Fig. 6 is the structural representation that present embodiment contains a kind of medicine releasing capsule of slidingtype protective cover.
Fig. 7 is the drug release process sketch map of present embodiment a kind of medicine releasing capsule of containing the slidingtype protective cover.
Embodiment 3:
The primary structure of present embodiment is identical with embodiment 1, difference is: a kind of medicine releasing capsule in the present embodiment comprises an elastic bellows 25, corrugated tube 25 is fixedly connected with pushing plate 23 towards an end of piston 4, corrugated tube 25 is fixedly connected with rear bearing sheet 24 towards an end of control circuit 3, corrugated tube 25, pushing plate 23, rear bearing sheet 24 constitute an airtight storehouse, microdriver 7 is packaged in this airtight storehouse, and the circuit line of microdriver 7 passes rear bearing sheet 24 and is connected with control circuit 3.In the present embodiment, the making material of corrugated tube 23 can be formed by stacking by foil, also can be made for the polymer of inwall applying of refractory material.
The main uses of corrugated tube 23 is airtight effect, microdriver 7 is closed in wherein, can plays moisture-proof role, in addition, the thermal expansion gas 13 that propellant 10 burning backs produce, residue etc. also are enclosed in wherein, further reduce entering gastral probability; In addition, elastic bellows also can play certain protective action, and the thrust that produces after the propellant combustion is restricted to wherein, can increase security of products.
The power sector 2 of present embodiment adopts button cell, and shell 1 is made for the Merlon with good biocompatibility, and the junction of shell 1 utilizes medical bonding agent to be adhesively fixed.A kind of medicine releasing capsule length of present embodiment is 30mm, and diameter is 11mm.
Fig. 8 is the structural representation that present embodiment contains a kind of medicine releasing capsule of corrugated tube.
Fig. 9 is the drug release process sketch map of present embodiment a kind of medicine releasing capsule of containing corrugated tube.
Embodiment 4:
The primary structure of present embodiment is identical with embodiment 2, difference is: the power sector 2 of a kind of medicine releasing capsule of present embodiment is the manifold type induction power supply, this power sector comprises energy coupling coil 26, resonance circuit 28, resonance circuit 28 and control circuit 3 are made as one, the electromagnetic wave energy that energy coupling coil 26 coupling body external electromagnetic field generating meanss produce, by resonance circuit 28, induced electric energy is put on lighter 8.
The energy coupling coil 26 of present embodiment is wound on the coil brace 27, energy coupling coil 26 adopts the copper material enamel-covered wire coiling of diameter 0.1-0.2mm to form, coil brace 27 is made for makrolon material, shell 1 is made for the Merlon with good biocompatibility, and the junction of shell 1 utilizes medical bonding agent to be adhesively fixed.A kind of medicine releasing capsule length of present embodiment is 30mm, and diameter is 11.5mm.
Figure 10 is the structural representation with a kind of medicine releasing capsule of manifold type induction power supply of the present utility model.
Figure 11 is the electrical block diagram with a kind of medicine releasing capsule of manifold type induction power supply of the present utility model.
Claims (8)
1. medicine releasing capsule, comprise shell, power sector, control circuit, driving mechanism, piston, the drug release passage mechanism, the driving mechanism that it is characterized in that described a kind of medicine releasing capsule comprises microdriver, this microdriver comprises lighter, the propellant storehouse, spout, propellant, wherein propellant is filled in the propellant storehouse, lighter is positioned at the rear of spout, piston closely contacts with driving mechanism, be positioned at the place ahead of spout, control circuit, power sector is positioned at an end of driving mechanism, piston, the drug release passage mechanism is positioned at the other end of driving mechanism.
2. a kind of medicine releasing capsule according to claim 1, it is characterized in that described lighter comprises a miniature thin-film resistance, its structure is: miniature thin-film resistance is metallic film or the semiconductor material thin film of thickness less than 0.1mmm, miniature thin-film resistance has the support base less than 0.2mm, the area of support base is greater than the area of film resistor, the edge of support base has the shoulder of support, forms bridge architecture, and the support base of miniature thin-film resistance position becomes bridge floor.
3. a kind of medicine releasing capsule according to claim 1 is characterized in that on the described lighter covering one deck medicament that detonates, and the cladding thickness of primary explosive is between 0.01-0.5mm.
4. a kind of medicine releasing capsule according to claim 1 is characterized in that the bottom in described propellant storehouse and lighter distance are between 0.05～1mm, and the bottom in propellant storehouse has the round tube hole of diameter between 0.1-1mm.
5. a kind of medicine releasing capsule according to claim 4 is characterized in that the bottom in described propellant storehouse comprises the one layer of polymeric thin film, and film thickness is less than 0.1mm.
6. a kind of medicine releasing capsule according to claim 1, it is characterized in that described a kind of medicine releasing capsule comprises a slidingtype protective cover, described slidingtype protective cover comprises 2-5 the cylinder that diameter is different, pushing plate, rear bearing sheet, when the slidingtype protective cover is in contraction state, the big cylindrical cap of diameter is in the little cylinder outside of diameter, one end of cylinder has inside interior to chimb, an other end has outside export-oriented chimb, two contiguous cylinders, the interior internal diameter to chimb of the cylinder that diameter is big is less than the external diameter of the export-oriented chimb of the little cylinder of diameter, when the slidingtype protective cover is in extended state, when the big cylinder of diameter when one side slides into the end, interior formation with the export-oriented chimb that is positioned at cylinder wherein to chimb of this cylinder stops, each cylinder forms slidingtype and connects, end towards piston of the cylinder of diameter maximum is fixedly connected with pushing plate, end towards control circuit of the cylinder of diameter minimum is fixedly connected with rear bearing sheet, cylinder, pushing plate, rear bearing sheet constitutes an airtight storehouse, microdriver is packaged in this airtight storehouse, and the circuit line of microdriver passes rear bearing sheet and is connected with control circuit.
7. a kind of medicine releasing capsule according to claim 1, it is characterized in that described a kind of medicine releasing capsule comprises an elastic bellows, corrugated tube is fixedly connected with pushing plate towards an end of piston, corrugated tube is fixedly connected with rear bearing sheet towards an end of control circuit, corrugated tube, pushing plate, rear bearing sheet constitute an airtight storehouse, microdriver is packaged in this airtight storehouse, and the circuit line of microdriver passes rear bearing sheet and is connected with control circuit.
8. a kind of medicine releasing capsule according to claim 1, it is characterized in that described power sector is the manifold type induction power supply, this power sector comprises energy coupling coil, resonance circuit, resonance circuit and control circuit are made as one, the electromagnetic wave energy that energy coupling coil coupling body external electromagnetic field generating means produces, by resonance circuit, induced electric energy is put on lighter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620112050XU CN201029954Y (en) | 2006-12-26 | 2006-12-26 | Medicine-releasing electric capsule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620112050XU CN201029954Y (en) | 2006-12-26 | 2006-12-26 | Medicine-releasing electric capsule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201029954Y true CN201029954Y (en) | 2008-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620112050XU Expired - Fee Related CN201029954Y (en) | 2006-12-26 | 2006-12-26 | Medicine-releasing electric capsule |
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| CN (1) | CN201029954Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101301508B (en) * | 2008-06-27 | 2010-06-02 | 华南理工大学 | Chemical reaction air pressure type device for releasing intestines and stomach medicament using ultrasonic triggering control |
| CN105920723A (en) * | 2016-05-19 | 2016-09-07 | 清华大学 | Electronic capsule capable of releasing accommodated substances quantitatively |
-
2006
- 2006-12-26 CN CNU200620112050XU patent/CN201029954Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101301508B (en) * | 2008-06-27 | 2010-06-02 | 华南理工大学 | Chemical reaction air pressure type device for releasing intestines and stomach medicament using ultrasonic triggering control |
| CN105920723A (en) * | 2016-05-19 | 2016-09-07 | 清华大学 | Electronic capsule capable of releasing accommodated substances quantitatively |
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| CF01 | Termination of patent right due to non-payment of annual fee |