CN102247636A - Disposable tamper pen type injector - Google Patents

Abstract

The invention relates to a disposable tamper pen type injector, belongs to a drug delivery system in the field of medical instruments, and discloses a disposable pen type injector with an anti-counterfeit effect. The injector is characterized in that: a clamp type bottle can be used as a drug storage bottle (a pen core) and cannot be completely taken out after being assembled into the pen type injector; after injection in the clamp type bottle is consumed, the injector cannot be reused, so that the injector is not filled again for reuse after being used for a specified number of times by a patient, the anti-counterfeit effect is achieved, and a series of problems, such as health and safety problems caused by inaccurate metering and nonstandard use and the like, brought by long-term use of the injector are avoided. In addition, a non-continuous metering (or non-cumulative) reading adjusting button is designed, and a plurality of gear readings can be designed according to dosage, so that the accuracy of the dosage each time can be guaranteed, and the injector is more convenient to use.

Description

Disposable tamper pen-type injector

Technical field

Pen-type injector provided by the invention is a kind of disposable tamper pen-type injector, the invention belongs to the drug delivery system (Drug delivery system) in the medical instruments field.

Background technology

Medical pen-type injector is a kind of syringe simple to operate, can be the remarkable improvement to disposable hypodermic syringe by patient's injecting drug use voluntarily, greatly alleviates the misery and the feared state of mind that the patient causes because of injection.A remarkable advantage of disposable tamper pen-type injector of the present invention is its design and the cassette bottle compatibility that is widely used now, can be widely used in existing cassette bottle gun propellant separated loading charge liquid systems.The present invention simultaneously also improves other serviceability, characteristics are when using the cassette bottle as drug storage bottle (pen core), cassette is bottled, and advance behind this pen-type injector can not complete again taking-up, treat promptly can not reuse again after injection uses up in the cassette bottle, thereby can guarantee to reuse the patient can not refill medicine after using this syringe to reach the access times of regulation after, has anti-fake effect, and guarantee that syringe can be because of life-time service bring a series of problems, as measure inaccurate, use the problems of bringing such as safe and sanitary lack of standardization.The present invention adopts the design of dosage adjusting knob in addition, and dose is designed to discontinuous metering (or claiming non-accumulative total formula) reading, and such design more can guarantee the accuracy of each dosage, and uses convenient.

Summary of the invention

The object of the invention is to provide a kind of disposable tamper pen-type injector, this class syringe be applicable to usually by the patient be used for the injection to oneself doses medicine, be used for to the insulin of oneself injecting doses or insulin type medicine, sufferers of osteoporosis face injection calcitonin or parathyroid hormone as diabetics, this class syringe also is applicable to other injection quasi drugss of injection.

Technical scheme of the present invention: a kind of disposable tamper pen-type injector, its by 1, the pen cap, 2, the syringe needle screw socket, 3, the liquid containing bottle overcoat, 4, push rod, 5, antiwithdrawal device, 6, a body screw thread, 7, release-push, 8, a body and 9, dosage adjusting knob form; The syringe needle screw socket is arranged on the end of drug storage bottle overcoat by the pen cap, use for equipped injection needle, push rod is arranged on the end by drug storage bottle overcoat of a body, push rod is threaded with a body, with a body hickey place antiwithdrawal device is set at push rod, body screw thread is arranged on an end of a body, pen is provided with release-push on one's body, release-push can be done the parallel of setting along syringe axial line injection direction and move, connection and control push rod move to be injected, the end of body links to each other with the dosage adjusting knob, on dosage adjusting knob circumference, be printed on the 2-6 shelves dosage reading parallel with axial line, turn dosage adjusting knob is to the dosage gear of setting, promptly control the dosage of this time injection, earlier the dosage adjusting knob being adjusted to and then advancing release-push behind the injecting drug use gear is start injection, after injection finishes, release-push is return the original place, this moment, the dosage adjusting knob automatically reset, this pen-type injector is packed the cassette bottle into as pen core drug storage bottle, cassette is bottled, and advance behind the pen-type injector can not complete again taking-up, treat promptly can not reuse again after liquid medicine injection uses up in the pen core cassette bottle, be beneficial to anti-drug counterfeiting, drug quality control and drug safety;

Described antiwithdrawal device (5) is selected one of three kinds of forms respectively for use:

1. tamper metal chip: the tamper sheet metal (A) that is installed at a body hickey place is installed in the sulculus of body threaded end (TE), vertically have 4 shallow slots in the drug storage bottle overcoat thread in inner cavity, the tamper sheet metal has necessarily along the screw thread tightening direction to be turned up, can without hindrance rotation tighten when therefore forward tightening, fall when oppositely unscrewing against being obstructed and turning on, if turn on by force and then damage screw thread, constitute antiwithdrawal device;

2. helical teeth is engagement type: install helical teeth (B) additional in a body screw thread back, also install corresponding helical teeth (C) additional at drug storage bottle overcoat thread in inner cavity mouth, the helical teeth direction matches with the tightening direction of a body screw thread, when drug storage bottle overcoat be connected with a body be threaded into the helical teeth engaged section after, can only dextrorotation rotate towards tightening direction, stuck during backward rotation, constitute antiwithdrawal device;

3. plush copper is engagement type: a body screw thread that connects a body is that a corrugated tubing divides body component, be contained in intracavity in the body in the part of right side, the left front end of screw thread has two tooth mouth plush coppers (D), in drug storage bottle outer casing inner wall relevant position two inwall plush coppers (E) are arranged also, when drug storage bottle overcoat and a body are tightened, these two groups of plush coppers of tooth mouth plush copper and inwall plush copper are in the position of engagement, continue again this moment firmly to tighten, because the effect of two groups of engagement plush coppers, whole corrugated tubing is driven by brute force to rotate, power is delivered to spacing muscle and destroys thin spacing muscle, spacing muscle (10) is arranged between a body corrugated tubing and the body, thereby corrugated tubing is changeed together with drug storage bottle overcoat, and a body corrugated tubing and the positive and negative rotation of a body are all without limits, so just can't take the drug storage bottle overcoat of loading onto the sixth of the twelve Earthly Branches apart, constitute antiwithdrawal device.

Described disposable tamper pen-type injector, adopt the each dosage of dosage adjusting knob control, the dosage adjusted design is directly used readings signify with dosage, and not continuous metering, (or claiming non-accumulative total reading), be designed to 1+N gear according to dosage, N is 1-5 shelves, such design more can guarantee the accuracy of each dosage, and uses convenient.

The application of described disposable tamper pen-type injector, by the patient be used for the injection to oneself doses medicine, include but not limited to that diabetics is used for to the insulin of oneself injecting doses or insulin type medicine, sufferers of osteoporosis face injection calcitonin or parathyroid hormone, this class syringe also is applicable to other injection quasi drugss of injection.

Beneficial effect of the present invention: the disposable tamper pen-type injector of the present invention, the cassette bottle that the medicinal liquid branch installs as drug storage is bottled advance drug storage bottle overcoat after, a body that joins with it can't disassemble after tightening from corrugated tubing again, guarantees can not be repeated after this pen-type injector drug storage bottle liquid medicine inside uses up to use again.

The present invention adopts the design of dosage adjusting knob in addition, and dosage is designed to discontinuous metering (or claiming non-accumulative total formula) reading, can be designed to a plurality of gears according to dosage, is preferably 2-6 gear.Such design more can guarantee the accuracy of each dosage, control easily, and reading is understood, and is used convenient.Thereby can guarantee that the patient does not re-use after using this syringe to reach the access times of regulation, both brought great convenience, guarantee a series of problems that syringe can not bring because of life-time service simultaneously, as measure inaccurate, use the problems of bringing such as safe and sanitary lack of standardization.

In a word, this disposable tamper pen-type injector provided by the invention had both guaranteed and cassette bottle compatibility, can provide again to be better than being used at present the function that pen-type injector possessed that the cassette bottle uses, and implemented the present invention and will produce good prospect in the drug administration field.

Description of drawings

The disposable tamper pen-type injector of Fig. 1.1, the pen cap, 2, the syringe needle screw socket, 3, drug storage bottle overcoat, 4, push rod, 5, antiwithdrawal device, 6, a body screw thread, 7, release-push, 8, a body, 9, the dosage adjusting knob.

The antiwithdrawal device sketch map of the disposable tamper pen-type injector of Fig. 2 tamper metal chip.A, tamper sheet metal, 8, a body.

The disposable tamper pen-type injector of Fig. 3.1, the pen cap, 2, the syringe needle screw socket, 3, drug storage bottle overcoat, 4, push rod, 5, antiwithdrawal device (the unidirectional helical teeth of B, C), 6, a body screw thread, 7, release-push, 8, a body, 9, the dosage adjusting knob.

The antiwithdrawal device sketch map of the disposable tamper pen-type injector that Fig. 4 helical teeth is engagement type.B, unidirectional helical teeth, C, unidirectional helical teeth, 8, a body.

The disposable tamper pen-type injector of Fig. 5.1, thepen cap 2, syringe needle screw socket 3, drug storage bottle overcoat, 4, push rod, 5, antiwithdrawal device: (D, tooth mouth plush copper and E, inwall plush copper), 6, a body screw thread (corrugated tubing), 7, release-push, 8, a body, 9, the dosage adjusting knob.

The antiwithdrawal device sketch map of the disposable tamper pen-type injector that Fig. 6 plush copper is engagement type.5, antiwithdrawal device: (D, tooth mouth plush copper and E, inwall plush copper), 6, a body screw thread, 8, a body, 10, spacing muscle.

The specific embodiment

The following embodiment that provides can explain content of the present invention in more detail.But content of the present invention is not limited to the content that these embodiment set forth.

Embodiment 1

Design in the described disposable tamper pen-type injector: content comprises: foil A is installed in the position at abody screw thread 6 as shown in Fig. 1 and Fig. 2, in drug storage bottle overcoat thread in inner cavity, vertically have 4 shallow slots, when pressing tightening direction when rotation, can without hindrancely rotate along the sheet metal bevel direction, if when oppositely unscrewing, sheet metal is reverse to be stuck in the shallow slot of thread in inner cavity, can not rotate, turn on by force and must damage screw thread, reach the purpose of tamper like this.

Embodiment 2.

Design in the described disposable tamper pen-type injector: content comprises: in Fig. 3 and the case shown in Figure 4, install helical teeth B additional inbody screw thread 6 back, also install corresponding helical teeth C additional at drug storage bottle overcoat thread in inner cavity mouth, the helical teeth direction matches with the tightening direction of abody screw thread 6, can only rotate towards tightening direction, stuck during backward rotation, reach the tamper effect.

Embodiment 3.

Design in the described disposable tamper pen-type injector: content comprises: as shown in Fig. 5 and Fig. 6, thecorrugated tubing 6 that connects abody 8 is branch body components, be contained in intracavity in the body in the part of right side, the left front end of screw thread has two tooth mouth plush copper D, in drug storage bottle overcoat 3 inwall relevant positions two inwall plush copper E are arranged also, when drug storage bottle overcoat 3 and abody 8 are tightened, these two groups of plush coppers are in the position of engagement, continue again this moment firmly to tighten, because the effect of two groups of engagement plush coppers, whole corrugated tubing is driven by brute force to rotate, power is delivered to spacing muscle and destroys thin spacing muscle, thereby make corrugated tubing with drug storage bottle overcoat with changeing, abody screw thread 6 and abody 8 positive and negative rotations so just can't have been taken the drug storage bottle overcoat loaded onto apart all without limits.

Claims (3)

1. disposable tamper pen-type injector is characterized in that being made up of the pen cap (1), syringe needle screw socket (2), drug storage bottle overcoat (3), push rod (4), antiwithdrawal device (5), a body screw thread (6), release-push (7), a body (8) and dosage adjusting knob (9); The syringe needle screw socket is arranged on the end of drug storage bottle overcoat by the pen cap, use for equipped injection needle, push rod is arranged on the end by drug storage bottle overcoat of a body, push rod is threaded with a body, with a body hickey place antiwithdrawal device is set at push rod, body screw thread is arranged on an end of a body, pen is provided with release-push on one's body, release-push can be done the parallel of setting along syringe axial line injection direction and move, connection and control push rod move to be injected, the end of body links to each other with the dosage adjusting knob, on dosage adjusting knob circumference, be printed on the 2-6 shelves dosage reading parallel with axial line, turn dosage adjusting knob is to the dosage gear of setting, promptly control the dosage of this time injection, earlier the dosage adjusting knob being adjusted to and then advancing release-push behind the injecting drug use gear is start injection, after injection finishes, release-push is return the original place, this moment, the dosage adjusting knob automatically reset, this pen-type injector is packed the cassette bottle into as pen core drug storage bottle, cassette is bottled, and advance behind the pen-type injector can not complete again taking-up, treat promptly can not reuse again after liquid medicine injection uses up in the pen core cassette bottle, be beneficial to anti-drug counterfeiting, drug quality control and drug safety;

Described antiwithdrawal device (5) is selected one of three kinds of forms respectively for use:

1. tamper metal chip: the tamper sheet metal (A) that is installed at a body hickey place is installed in the sulculus of body threaded end (TE), vertically have 4 shallow slots in the drug storage bottle overcoat thread in inner cavity, the tamper sheet metal has necessarily along the screw thread tightening direction to be turned up, can without hindrance rotation tighten when therefore forward tightening, fall when oppositely unscrewing against being obstructed and turning on, if turn on by force and then damage screw thread, constitute antiwithdrawal device;

2. helical teeth is engagement type: install helical teeth (B) additional in a body screw thread back, also install corresponding helical teeth (C) additional at drug storage bottle overcoat thread in inner cavity mouth, the helical teeth direction matches with the tightening direction of a body screw thread, when drug storage bottle overcoat be connected with a body be threaded into the helical teeth engaged section after, can only dextrorotation rotate towards tightening direction, stuck during backward rotation, constitute antiwithdrawal device;

3. plush copper is engagement type: a body screw thread that connects a body is that a corrugated tubing divides body component, be contained in intracavity in the body in the part of right side, the left front end of screw thread has two tooth mouth plush coppers (D), in drug storage bottle outer casing inner wall relevant position two inwall plush coppers (E) are arranged also, when drug storage bottle overcoat and a body are tightened, these two groups of plush coppers of tooth mouth plush copper and inwall plush copper are in the position of engagement, continue again this moment firmly to tighten, because the effect of two groups of engagement plush coppers, whole corrugated tubing is driven by brute force to rotate, power is delivered to spacing muscle and destroys thin spacing muscle, spacing muscle is arranged between a corrugated tubing and the body, thereby corrugated tubing is changeed together with drug storage bottle overcoat, and a body corrugated tubing and the positive and negative rotation of a body are all without limits, so just can't take the liquid containing bottle overcoat of loading onto the sixth of the twelve Earthly Branches apart, constitute antiwithdrawal device.

2. disposable according to claim 1 tamper pen-type injector, it is characterized in that adopting the each dosage of dosage adjusting knob control, the dosage adjusted design is directly used readings signify with dosage, and not continuous metering, or claim non-accumulative total reading, and being designed to 1+N gear according to dosage, N is 1-5 shelves, such design more can guarantee the accuracy of each dosage, and uses convenient.

3. the application of disposable as claimed in claim 1 or 2 tamper pen-type injector, it is characterized in that by the patient be used for the injection to oneself doses medicine, include but not limited to that diabetics is used for to the insulin of oneself injecting doses or insulin type medicine, sufferers of osteoporosis face injection calcitonin or parathyroid hormone, this class syringe also is applicable to other injection quasi drugss of injection.

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