CN211096765U

CN211096765U - Dry powder inhaler

Info

Publication number: CN211096765U
Application number: CN201921457086.5U
Authority: CN
Inventors: 任瑞贤
Original assignee: Suzhou Xinmaide Medical Appliance Technology Co ltd
Current assignee: Suzhou Xinmaide Medical Appliance Technology Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-07-28
Anticipated expiration: 2029-09-04

Abstract

The utility model provides a dry powder inhaler, it includes: the suction nozzle, the capsule storehouse, the spring holder, a spring, a button, the felting needle, the both sides in capsule storehouse are equipped with the spring holder respectively, spring and button, the spring holder is fixed in the both sides in capsule storehouse, the one end of spring cup joints on the spring holder, the other one end of spring is fixed on the button, the button is equipped with the felting needle towards one side in capsule storehouse, when pressing the button, the felting needle removes towards the capsule storehouse, be equipped with the aperture on the capsule storehouse, the felting needle just in time can pass the aperture, when moving a certain position, the capsule in the capsule storehouse is punctureed to the felting needle, make powdered medicine released: the rear portion of the suction nozzle is provided with an annular hole groove, the lower portion of the annular hole groove is provided with a notch, the rear portion of the capsule bin is provided with a shaft, the maximum diameter of the shaft is larger than the diameter of the notch, the maximum diameter of the shaft is smaller than the maximum diameter of the annular hole groove, during assembly, the capsule bin and the suction nozzle are guaranteed to be in a coaxial state, the shaft of the capsule bin moves upwards along the axial direction, or the suction nozzle moves downwards along the axial direction, and the suction nozzle is clamped into the annular hole groove from the notch.

Description

Dry powder inhaler

Technical Field

The present invention relates to a dry powder inhaler which can be used to deliver powders of medicaments for the treatment of respiratory diseases, such as medicaments in powder form for the treatment of asthma and chronic obstructive pulmonary disease.

Background

The invention patent application No. CN200580015353.8 proposes an inhalation device for powdered medicaments, comprising: a body having a recess for holding a capsule containing a powdered medicament to be inhaled, at least one air channel disposed tangentially to the recess; a mouthpiece comprising a coaxially disposed suction channel in communication with the recess of the body; capsule piercing means on the body for piercing a capsule filled in the recess so that medicament is released when air is drawn into the recess through the air passage and swirled in the recess; and a removable cover: the inhalation device is characterized in that: said capsule piercing means comprising a pair of opposed spring-biased push buttons, each of said push buttons comprising at least one piercing element, said mouthpiece being pivotally connected to the rear edge of said body by a hinge structure such that application of a pushing force by a user on said mouthpiece pivots said mouthpiece between an open loading position and a closed dosing position about an axis perpendicular to the longitudinal axis of said inhalation device; the hinge mechanism includes a pair of opposed shaft slots in the body and a hinge member at the mouth, the shaft slots receiving hinge shafts extending from the hinge member; the rear portion of the body comprises a groove to assist the user in distinguishing the rear and front portions of the inhalation device; the cap including a rib on an inner surface of the cap adjacent the opening of the cap, the rib engaging the body of the inhaler; the cover also includes a finger contact recess at a lower front edge of the cover.

The above hinge member has the following two drawbacks: firstly, the structure of the pivotal connection of the mouthpiece to the rear portion of the body is not stable enough, so that shaking between the mouthpiece and the body is likely to occur, which may affect the stability of the dry powder inhaler during use. Secondly, if the mouth part is detached, the lower cover outside the body part needs to be opened firstly, then the mouth part is pivoted to a certain position along the hinge part, and the mouth part can be detached to mount the capsule.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the utility model provides a dry powder inhaler, it no longer adopts the lower cover spacing, somatic part rear portion and oral area hinged joint's structure, but adopt to increase the annular hole groove at the lower part rear end of suction nozzle, set up the incision in the lower part of annular hole groove, upper portion rear end at the capsule cabin sets up the axle, the axle can utilize the tension of plastics to pass the incision and fix inside the annular hole inslot, adopt this kind of axle hole complex structure to realize the fixed of capsule storehouse and suction nozzle promptly, this kind of structure is relatively more stable, make can not produce between capsule storehouse and the suction nozzle and rock, tear open piece or assemble also only need with the annular hole groove of suction nozzle and the axle in capsule storehouse cooperate can, it is very convenient.

A dry powder inhaler, comprising: the capsule cleaning device is characterized in that the suction nozzle 0200, the capsule bin 0600, the spring seat 0500, the spring 0400, the button 0300 and the puncture needle 0301 are respectively arranged on two sides of the capsule bin 0600, the spring seat 0500, the spring 0400 and the button 0300 are respectively arranged on the two sides of the capsule bin 0600, the spring seat 0500 is fixed on the two sides of the capsule bin 0600, one end of the spring 0400 is sleeved on the spring seat 0500, the other end of the spring 0400 is fixed on the button 0300, the puncture needle 0301 is arranged on one side, facing the capsule bin 0600, of the button 0300, the puncture needle 0301 moves towards the capsule bin 0600 when the button 0300 is pressed, the capsule bin 0600 is provided with a small hole 0305, the puncture needle 0301 can just penetrate through the small hole 0305, and when the capsule is moved: the rear part of the suction nozzle 0200 is provided with an annular hole groove 0203, the lower part of the annular hole groove 0203 is provided with a notch 0204, the rear part of the capsule bin 0600 is provided with a shaft 0303, the maximum diameter of the shaft 0303 is larger than that of the notch 0204, the maximum diameter of the shaft 0303 is smaller than that of the annular hole groove 0203, when the capsule bin 0600 and the suction nozzle 0200 are assembled, the shaft 0303 is vertically matched upwards, the notch 0204 is clamped into the annular hole groove 0203 to realize shaft hole matching, so that the suction nozzle 0200 rotates around the shaft 0303 on the capsule bin 0600, when the capsule bin 0600 and the suction nozzle 0200 are disassembled, the shaft 0303 is vertically moved downwards, and the shaft 0303 is separated from the notch 0204 of the annular hole groove 0203.

Further, a snap groove 0304 is arranged above the front part of the capsule bin 0600 and can be matched with the first boss 0205 below the front part of the suction nozzle 0200, so that when the capsule bin 0600 and the suction nozzle 0200 are vertically assembled, a side limiting effect of the capsule bin 0600 and the suction nozzle 0200 is achieved, and the shaft 0303 cannot easily fall off in the vertical direction.

Further, the second bosses 0306 are respectively arranged at the two ends of the shaft 0303, so that the second bosses 0306 have the anti-falling effect when being clamped in the annular hole groove 0203.

Further, a first hook 0206 is arranged in the annular hole groove 0203 of the suction nozzle 0200, and the first hook 0206 is matched with the second boss 0306 of the capsule bin 0600, so that the effect of further preventing the shaft 0303 from falling off from the annular hole groove 0203 is achieved.

Further preferably, flat-shaped catching grooves 0307 are provided between the second bosses 0306 at both ends of the shaft 0303, and the largest diameter direction of the flat-shaped catching grooves 0307 is exactly perpendicular to the notches 0204 of the annular hole groove 0203 when the mouthpiece 0200 is opened, and the largest diameter direction of the flat-shaped catching grooves 0307 is exactly corresponding to the notches of the annular hole groove 0203 when the mouthpiece is closed. The shaft 0303 is provided with a flat catching groove 0307, which can prevent the shaft 0303 from separating from the cut 0204 of the ring-shaped hole 0203.

Further preferably, a pair of ribs 0207 is provided on the first hook 0206, the ribs 0207 are vertical protruding steps which are centrosymmetric with respect to the vertical section plane of the annular hole groove 0203, and one step surface of the two vertical protruding steps is exactly parallel to the direction of the cut 0204. The ribs 0207 are adopted to facilitate the rotation of the clamping groove 0307 in the annular hole groove 0203, and a better self-locking structure is formed.

Further, the guide groove 0208 is provided at the position of the notch 0204 of the annular hole groove 0203, so that the shaft 0303 can enter the annular hole groove 0203 more conveniently.

Furthermore, a dust cover 0100 is arranged outside the suction nozzle 0200, a rib is arranged inside the dust cover 0100, the lower cover 0700 is sleeved outside the capsule bin 0600, the clamping hook 0701 on the inner wall of the lower cover is fixedly clamped with the clamping groove 0307 on the capsule bin 0600, a rib is arranged inside the lower cover 0700, and the rib inside the dust cover 0100 can be matched with the rib inside the lower cover 0700, so that the effect that the dust cover 0100 is installed inside the lower cover 0700 is achieved.

Further, a suction channel 0201 and a mesh 0202 are provided inside the suction nozzle 0200, wherein one end of the suction channel 0201 is connected to the atmosphere and the other end of the suction channel 0201 is connected to the mesh 0202.

Therefore, the utility model discloses a dry powder inhaler can improve the suction nozzle that formula mode between current dry powder inhaler's suction nozzle and the capsule storehouse leads to and the big problem of rocking between the capsule storehouse, and, because the utility model discloses a shaft hole complex mode when needs unpack the suction nozzle apart with the capsule storehouse, only need extract the axle from the incision under the effect of external force, utilize the elasticity of plastics to need not go to unpack apart the lower cover apart, and it is fairly simple to tear apart.

Drawings

Fig. 1 is a schematic view of a housing of a dry powder inhaler according to the present invention.

Fig. 2 is a schematic diagram of the explosion of the dry powder inhaler of the present invention.

Fig. 3 is a schematic view of a dry powder inhaler of the present invention.

FIG. 4 is a cut-away view of the annular bore groove mating with the shaft.

FIG. 5 is a cut-away view of the annular bore groove mating with the shaft.

Fig. 6 is a cross-sectional view of a dry powder inhaler of the present invention.

Fig. 7 is a schematic view of a button.

Fig. 8 is a schematic view of the structure of the shaft.

FIG. 9 is a cross-sectional view of an annular bore groove.

FIG. 10 is a schematic view showing the structure of the shaft hole when the suction nozzle is engaged.

FIG. 11 is a schematic view showing the structure of the shaft hole when the suction nozzle is opened.

Dust cover	0100
		Suction nozzle	0200
Suction channel	0201
		Mesh hole	0202
Annular hole groove	0203
		Incision	0204
First boss	0205
		The first hook	0206
Ribs	0207
		Guide groove	0208
Push button	0300
		Pricking pin	0301
Cyclone air inlet	0302
		Shaft	0303
Hook groove	0304
		Small hole	0305
Second boss	0306
		Clamping groove	0307
Spring	0400
		Spring seat	0500
Capsule cabin	0600
		Lower cover	0700

The drawings are described in detail below with reference to specific embodiments.

Detailed Description

Specific embodiment example 1:

fig. 1 is a schematic view of the housing of the dry powder inhaler of the present invention; fig. 2 is a schematic diagram illustrating the explosion of the dry powder inhaler of the present invention; fig. 3 is a schematic view of the dry powder inhaler of the present invention; FIG. 4 shows a sectional view of the annular bore groove in alignment with the shaft; FIG. 5 shows a sectional view of the annular bore groove in alignment with the shaft; fig. 6 is a cross-sectional view of the dry powder inhaler of the present invention; FIG. 7 is a schematic view of a button; FIG. 8 is a schematic view of the shaft; FIG. 9 is a cross-sectional view of the annular bore groove; FIG. 10 is a schematic view showing the structure of the shaft hole when the suction nozzle is engaged; fig. 11 is a schematic view showing the structure of the shaft hole when the suction nozzle is opened.

The upper part of the front part of the capsule bin 0600 is provided with a clamping hook groove 0304 which can be matched with the first boss 0205 below the front part of the suction nozzle 0200, so that when the capsule bin 0600 and the suction nozzle 0200 are vertically assembled, the side limiting effect of the capsule bin 0600 and the suction nozzle 0200 is achieved, and the shaft 0303 cannot easily fall off in the vertical direction.

Second bosses 0306 are respectively arranged at two ends of the shaft 0303, so that the second bosses 0306 have the anti-falling effect when being clamped in the annular hole groove 0203. And the second boss 0306 preferably takes the form of two cylinders or shafts of unequal diameter but coaxial.

A first snap ring 0206 is arranged in the annular hole groove 0203 of the suction nozzle 0200, and the first snap ring 0206 is matched with the second boss 0306 of the capsule bin 0600, so that the effect of further preventing the shaft 0303 from falling off from the annular hole groove 0203 is achieved.

Flat-shaped neck 0307 is arranged between the second bosses 0306 at the two ends of the shaft 0303, when the suction nozzle 0200 is opened, the maximum diameter direction of the flat-shaped neck 0307 is just vertical to the notch 0204 of the annular hole groove 0203, and when the suction nozzle is closed, the maximum diameter direction of the flat-shaped neck 0307 is just corresponding to the notch of the annular hole groove 0203. The shaft 0303 is provided with a flat catching groove 0307, which can prevent the shaft 0303 from separating from the cut 0204 of the ring-shaped hole 0203.

A pair of ribs 0207 are arranged on the first clamping hook 0206, the ribs 0207 are vertical protruding steps which are centrosymmetric about the vertical section plane of the annular hole groove 0203, and one step surface of the two vertical protruding steps is just parallel to the direction of the cut 0204. The ribs 0207 are adopted to facilitate the rotation of the clamping groove 0307 in the annular hole groove 0203, and a better self-locking structure is formed.

The guide groove 0208 is provided at the position of the notch 0204 of the annular hole groove 0203, so that the shaft 0303 can enter the annular hole groove 0203 more conveniently.

The dust cover 0100 is arranged outside the suction nozzle 0200, ribs are arranged inside the dust cover 0100, the lower cover 0700 is sleeved outside the capsule bin 0600, the clamping hook 0701 on the inner wall of the lower cover is fixedly clamped with the clamping groove 0307 on the capsule bin 0600, the ribs are arranged inside the lower cover 0700, and the ribs inside the dust cover 0100 can be matched with the ribs inside the lower cover 0700, so that the effect that the dust cover 0100 is installed inside the lower cover 0700 is achieved.

A suction channel 0201 and a mesh 0202 are provided inside the suction nozzle 0200, wherein one end of the suction channel 0201 is connected to the atmosphere and the other end of the suction channel 0201 is connected to the mesh 0202.

As above-mentioned dry powder inhaler, can improve the problem that rocks between suction nozzle that present dry powder inhaler's the formula mode between suction nozzle and the capsule storehouse leads to and the capsule storehouse greatly, and, because the utility model discloses a shaft hole complex mode when needs unpack apart suction nozzle and capsule storehouse, only need under the effect of external force, utilize the elasticity of plastics to extract the axle from the incision to need not go to unpack apart the lower cover, it is fairly simple to unpack the piece.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A dry powder inhaler, comprising: suction nozzle (0200), capsule storehouse (0600), spring holder (0500), spring (0400), button (0300), felting needle (0301), the both sides of capsule storehouse (0600) are equipped with spring holder (0500), spring (0400) and button (0300) respectively, spring holder (0500) are fixed in the both sides of capsule storehouse (0600), one end of spring (0400) is cup jointed on spring holder (0500), another end of spring (0400) is fixed on button (0300), button (0300) is towards one side of capsule storehouse (0600) and is equipped with felting needle (0301), when pressing button (0300), felting needle (0301) moves towards capsule storehouse (0600), be equipped with aperture (0305) on capsule storehouse (0600), felting needle (0301) just can pass aperture (0305), when moving to a certain position, the capsule in felting needle capsule storehouse (0600) is punctured, make the powdered medicine release, and the characteristic lies in that: the rear part of the suction nozzle (0200) is provided with an annular hole groove (0203), the lower part of the annular hole groove (0203) is provided with a notch (0204), the rear part of the capsule bin (0600) is provided with a shaft (0303), the maximum diameter of the shaft (0303) is smaller than that of the annular hole groove (0203), the capsule bin (0600) is vertically matched with the suction nozzle (0200) during assembly, the shaft (0303) is vertically moved upwards and clamped into the annular hole groove (0203) from the notch (0204) to realize shaft hole matching, so that the suction nozzle (0200) rotates around the shaft (0303) on the capsule bin (0600), the capsule bin (0600) and the suction nozzle (0200) are placed in vertical positions during disassembly, and the shaft (0303) is vertically moved downwards, so that the shaft (0303) is separated from the notch (0204) of the annular hole groove (0203).

2. The dry powder inhaler of claim 1, wherein: a clamping hook groove (0304) is arranged above the front part of the capsule cabin (0600) and can be matched with a first boss (0205) below the front part of the suction nozzle (0200).

3. The dry powder inhaler of claim 1, wherein: and second bosses (0306) are respectively arranged at two ends of the shaft (0303), so that the second bosses (0306) have the anti-falling effect when being clamped in the annular hole groove (0203).

4. The dry powder inhaler of claim 3, wherein: a first clamping hook (0206) is arranged in an annular hole groove (0203) of the suction nozzle (0200), and the first clamping hook (0206) is matched with a second boss (0306) of the capsule bin (0600).

5. The dry powder inhaler of claim 3, wherein: and the second boss (0306) employs two cylinders or shafts of unequal diameter but coaxial.

6. The dry powder inhaler of claim 4, wherein: a flat-shaped clamping groove (0307) is formed between the second bosses (0306) at the two ends of the shaft (0303), when the suction nozzle (0200) is opened, the maximum diameter direction of the flat-shaped clamping groove (0307) is just vertical to the notch (0204) of the annular hole groove (0203), and when the suction nozzle is closed, the maximum diameter direction of the flat-shaped clamping groove (0307) is just corresponding to the notch of the annular hole groove (0203).

7. The dry powder inhaler of claim 5, wherein: a pair of ribs (0207) are arranged on the first clamping hook (0206), the ribs (0207) are vertical protruding steps which are centrosymmetric about a vertical section plane of the annular hole groove (0203), and one step surface of the two vertical protruding steps is just parallel to the direction of the cut (0204).

8. The dry powder inhaler of claim 1, wherein: a guide groove (0208) is provided at the position of the notch (0204) of the annular hole groove (0203).

9. The dry powder inhaler of claim 1, wherein: the outer portion of the suction nozzle (0200) is provided with a dust cover (0100), a rib is arranged in the dust cover (0100), the outer portion of the capsule bin (0600) is sleeved with a lower cover (0700), a clamping hook (0701) on the inner wall of the lower cover is fixedly clamped with a clamping groove (0307) in the capsule bin (0600), the inner portion of the lower cover (0700) is provided with the rib, the inner rib of the dust cover (0100) can be matched with the inner rib of the lower cover (0700), and therefore the dust cover (0100) is mounted in the lower cover (0700).

10. The dry powder inhaler of claim 1, wherein: a suction channel (0201) and a mesh (0202) are arranged inside the suction nozzle (0200), wherein one end of the suction channel (0201) is connected with the atmosphere, and the other end of the suction channel (0201) is connected with the mesh (0202).