Insulin injection site positioning pen

Abstract

The invention relates to the technical field of insulin injection, in particular to an insulin injection site positioning pen which comprises a pen tube, a first injection rod is slidably arranged in the pen tube, an injection tube is mounted at one end of the pen tube, and an injection head is mounted at one end of the injection tube; the storage tube is arranged on the outer surface of the injection tube in a sleeving mode, and multiple sets of storage cavities are formed in the storage tube; the transmission assembly is used for driving the storage pipe to rotate; when a first injection rod is pressed, the first injection rod drives a second push rod to move downwards, at the moment, a reset plate is unfolded, the elastically-arranged reset plate retracts into a groove, meanwhile, the lower end of the first injection rod extrudes an extrusion rod, the end of the extrusion rod is inserted into a beveling groove, and due to the fact that the beveling groove is obliquely formed, a storage pipe rotates along an injection pipe through cooperation of the extrusion rod; meanwhile, the first abutting block presses the second abutting block, the second abutting block drives the insertion block to move out of the insertion groove through cooperation of a second pull rope, and the insulin bottle can be pushed into the injection tube through the push plate.

Description

Technical Field

[0001] The invention relates to the technical field of insulin injection, in particular to an insulin injection site positioning pen. Background Art

[0002] Insulin is a protein hormone secreted by pancreatic β cells in the pancreas in response to endogenous or exogenous substances such as glucose, lactose, ribose, arginine, glucagon, etc.

[0003] During the insulin injection process, patients need to change the injection site in a planned manner to prevent fat hyperplasia, thereby affecting the absorption of insulin and being detrimental to blood sugar control. In the prior art, a Chinese patent with a publication number of CN209060218U discloses an insulin injection site positioning pen, including an injection push button, a knob, an injection site table, a pen tube, a piston rod, a baffle, a rubber piston, a shell, a conversion piece, an insulin tube, a needle and a groove; the insulin injection site positioning pen is provided with an injection site table at one end of the pen tube, and the injection push button pushes the injection rod to inject the islet fluid by turning the knob. After the injection is completed, the internal device of the pen tube cooperates with the rotation to realize the injection site table to move forward one grid, which is convenient for elderly patients and patients with low cultural level to change different injection sites in time and effectively control the blood sugar content of the patients. In addition, a conversion piece is provided inside the shell, and the conversion piece is provided with three insulin tubes. The conversion piece is rotated through the groove to realize the circulation injection of the three insulin tubes, which is convenient for patients to carry and store;

[0004] In the above technology, a conversion plate is arranged inside the shell. The conversion plate is provided with three insulin tubes. The conversion plate is rotated through the groove to realize the circulation injection of the three insulin tubes. However, during the injection, the conversion plate needs to be rotated manually. However, since there is no limit device, it is easy to have an improper rotation angle, which will cause the problem of not being able to be replaced quickly. Summary of the invention

[0005] The purpose of the present invention is to provide an insulin injection site locating pen to solve the problems raised in the above technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An insulin injection site locator pen, comprising:

[0008] A pen barrel, wherein a first injection rod matching the first injection rod is slidably inserted in the interior of the pen barrel, and a matching injection tube is installed at one end of the pen barrel away from the first injection rod, and a matching injection head is installed at one end of the injection tube away from the pen barrel, a protective sleeve is sleeved on the outer surface of one end of the injection head, and a pen cap is sleeved at the end of the pen barrel corresponding to the injection head;

[0009] A storage tube is rotatably sleeved on the outer surface of the injection tube, and a plurality of storage cavities are provided inside the storage tube, each storage cavity is slidably provided with a matching push plate, and a matching reset plate is slidably provided on the outer surface of the storage tube at a position corresponding to one of the push plates;

[0010] The transmission assembly is used to drive the storage tube to rotate. The transmission assembly includes a slidably arranged extrusion rod. An oblique groove is formed on the upper end surface of the storage tube at a position corresponding to the end of the extrusion rod.

[0011] Preferably, a first return spring is fixedly arranged between the end of the first injection rod and the inside of the pen tube, and the first injection rod is elastically inserted into the inside of the pen tube through the first return spring;

[0012] A second push rod is fixedly arranged at the center of the upper end surface of the first injection rod. The second push rod is elastically arranged just above the injection tube through the cooperation of the first injection rod.

[0013] Preferably, an annular groove is provided on the outer surface of the injection tube, a fifth receiving groove is provided on the inner wall of the upper end surface of the storage tube at a position corresponding to the annular groove, a matching clamping block is inserted inside the fifth receiving groove, and a matching eighth return spring is fixedly provided between the end of the clamping block and the inner wall of the fifth receiving groove, and the clamping block is elastically inserted inside the annular groove through the eighth return spring;

[0014] A third through hole is provided on the outer surface of the storage tube, the third through hole is communicated with the fifth receiving groove, and a third pull rope is provided inside the third through hole, one end of the third pull rope passes through the storage tube and is connected to a pull block, and one end of the third pull rope away from the pull block is connected to the clamping block.

[0015] Preferably, a first clearance groove is formed on the inner wall of the pen tube at a position corresponding to the end of the first injection rod, and a first through groove is formed on the inner lower end surface of the first clearance groove, and the first through groove runs through the pen tube;

[0016] A matching extrusion rod is slidably arranged inside the first give way groove, the extrusion rod is in an inverted "L"-shaped structure, and the vertical rod of the extrusion rod is inserted into the first through groove, a second return spring is fixedly arranged between the transverse rod of the extrusion rod and the inner lower end surface of the first give way groove, and the vertical rod of the extrusion rod is elastically inserted into the first through groove through the cooperation of the second return spring;

[0017] An oblique groove is formed on the inner side wall of the first clearance groove at a position corresponding to the extrusion rod, and the extrusion rod slides up and down along the oblique groove.

[0018] Preferably, the bevel grooves are provided in four groups, the four groups of bevel grooves are evenly spaced, and the cross-section of the bevel grooves is an arc-shaped triangular structure, and the size of the bevel grooves is adapted to the size of the end of the extrusion rod;

[0019] The upper end surface of the storage tube is provided with a triangular groove, and the triangular grooves are provided in four groups. The four groups of triangular grooves are respectively provided between the ends of two adjacent groups of the beveled grooves, and the lower end surface of the pen tube is provided with a sixth receiving groove at a position corresponding to one of the groups of the triangular grooves. A matching triangular block is inserted inside the sixth receiving groove, and the triangular block is matched with the triangular groove, and a matching ninth return spring is fixedly provided between the upper end surface of the triangular groove and the inner top end of the sixth receiving groove.

[0020] Preferably, the storage tube has a storage cavity corresponding to the position of each of the beveled grooves, and the injection tube has a third through groove corresponding to the position of one group of the storage cavities.

[0021] A matching push plate is slidably disposed inside each storage cavity, a matching second abutment block is fixedly disposed between one end of the push plate and the inside of the corresponding storage cavity, and the push plate is elastically disposed inside the storage cavity through the second abutment block;

[0022] A limiting component is arranged inside the storage tube for limiting the elastically arranged push plate.

[0023] Preferably, the limit assembly includes a fourth receiving groove provided on the inner wall of the storage cavity, a matching plug-in block is slidably inserted in the interior of the fourth receiving groove, and a matching sixth return spring is provided between the end of the plug-in block and the inner wall of the fourth receiving groove, the plug-in block is elastically provided in the interior of the fourth receiving groove by the sixth return spring, and a slot is provided on the side wall of the push plate at a position corresponding to the plug-in block;

[0024] A third receiving groove is provided on the upper end surface of the storage tube at a position corresponding to the inserting block, a second abutting block matching the third receiving groove is slidably arranged inside the third receiving groove, a fifth return spring matching the second abutting block is fixedly arranged between the second abutting block and the third receiving groove, and the second abutting block is elastically arranged inside the third receiving groove through the fifth return spring;

[0025] A second through hole is provided between the third receiving groove and the fourth receiving groove, a second pull rope is provided inside the second through hole, and two ends of the second pull rope are respectively connected to the side wall of the second supporting block and the end of the inserting block.

[0026] Preferably, a second receiving groove is provided on the lower end surface of the pen tube at a position corresponding to one group of the second abutting blocks, a first abutting block adapted to the second receiving groove is inserted and arranged inside the second receiving groove, and a fourth return spring is arranged between the first abutting block and the second receiving groove, and the first abutting block is elastically inserted into the second receiving groove through the fourth return spring;

[0027] A first receiving groove is provided inside the pen tube at a position corresponding to the end of the first injection rod, the first receiving groove is located below the first giving way groove, and a matching extrusion block is inserted inside the first receiving groove, and a third return spring is fixedly provided between the end of the extrusion block and the inner wall of the first receiving groove, the extrusion block is elastically inserted into the first receiving groove through the third return spring, and the upper end surface of the extrusion block is inclined;

[0028] A first through hole is defined between the first receiving groove and the second receiving groove, a first pull rope is disposed inside the first through hole, and two ends of the first pull rope are respectively connected to the first supporting block and the extruding block.

[0029] Preferably, a groove is provided on the inner wall of the injection tube at a position corresponding to the third through groove, a matching reset plate is provided inside the groove, and a matching seventh reset spring is fixedly provided between the side wall of the reset plate and the inner side wall of the groove.

[0030] Preferably, a first airbag adapted to the position is fixedly disposed between the side wall of the reset plate and the inner side wall of the groove;

[0031] A second airbag is fixedly arranged between the upper end surface of the second push rod away from the first injection rod and the inside of the pen tube, a first exhaust pipe is opened between the second airbag and the first airbag, the second airbag is connected to the first airbag through the first exhaust pipe, and the elastic force of the first return spring is greater than the elastic force of the seventh return spring.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention enables the storage tube to be sleeved on the outside of the injection tube through the cooperation of the elastically arranged clamping block and the annular clamping groove. When the first injection rod is pressed, the first injection rod drives the second push rod to move downward. At this time, the reset plate is unfolded, and the elastically arranged reset plate is retracted into the groove. At the same time, the lower end of the first injection rod squeezes the squeezing rod, and the end of the squeezing rod is inserted into the bevel groove. Since the bevel groove is inclined, the storage tube rotates along the injection tube through the cooperation of the squeezing rod, so that the insulin bottle in the storage tube is aligned with the third through groove. When the end of the first injection rod squeezes the elastically arranged squeezing block, the elastically arranged first abutting block presses down the elastically arranged second abutting block, and the second abutting block drives the inserting block to move out of the slot through the cooperation of the second pull rope. The elastically arranged push plate can push the insulin bottle into the injection tube for convenient injection.

[0034] After the injection is completed, under the action of the first return spring, the first injection rod is reset. At this time, the end of the second push rod compresses the reset plate, and the gas inside the reset plate is discharged to the inside of the first airbag through the first exhaust pipe. The first airbag expands and pushes the reset plate to push the insulin bottle back into the storage cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0036] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the present invention;

[0037] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0038] Figure 4 It is a schematic diagram of the connection between the pen tube and the injection tube structure of the present invention;

[0039] Figure 5 It is a cross-sectional schematic diagram of the connection between the storage tube and the pen tube structure of the present invention;

[0040] Figure 6 for Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0041] Figure 7 It is a schematic cross-sectional view of the storage tube structure of the present invention;

[0042] Figure 8 for Figure 7 A magnified schematic diagram of the structure at C in the middle;

[0043] Fig. 9 It is a top schematic diagram of the storage tube structure of the present invention;

[0044] Fig.10 A partial cross-sectional view of the storage tube structure of the present invention;

[0045] Fig.11 It is a schematic cross-sectional view of the bottom of the pen tube of the present invention.

[0046] In the figure: pen tube 1, first injection rod 2, storage tube 3, injection tube 4, injection head 5, protective cover 6, pen cover 7, second push rod 8, first return spring 9, first give way groove 10, extrusion rod 11, inclined groove 12, second return spring 13, first through groove 14, first receiving groove 15, extrusion block 16, third return spring 17, first through hole 18, first pull rope 19, first exhaust duct 20, storage chamber 22, second receiving groove 23, fourth return spring 24, first abutment block 25, third receiving groove 26, fifth return spring 27 , second abutting block 28, second through hole 29, second pull rope 30, fourth receiving groove 31, sixth return spring 32, insert block 33, slot 34, third through slot 35, groove 36, first air bag 37, seventh return spring 38, bevel groove 39, triangular groove 40, clamping block 41, fifth receiving groove 42, eighth return spring 43, third through hole 44, third pull rope 45, pull block 46, sixth receiving groove 47, triangular block 48, ninth return spring 49, push plate 50, return plate 51, second air bag 52, annular groove 53. DETAILED DESCRIPTION

[0047] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0048] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0049] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are only connected to form a whole through a connecting structure. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0052] Embodiment 1:

[0053] See also Figures 1 to 11 The present invention provides a technical solution: an insulin injection site positioning pen, comprising:

[0054] A pen barrel 1, wherein a first injection rod 2 is slidably inserted inside the pen barrel 1, and a matching injection tube 4 is installed at one end of the pen barrel 1 away from the first injection rod 2, and a matching injection head 5 is installed at one end of the injection tube 4 away from the pen barrel 1, a protective cover 6 is sleeved on the outer surface of one end of the injection head 5, and a pen cover 7 is sleeved at the end of the pen barrel 1 corresponding to the injection head 5;

[0055] The storage tube 3 is rotatably sleeved on the outer surface of the injection tube 4, and a plurality of storage cavities 22 are arranged inside the storage tube 3, and a matching push plate 50 is slidably arranged inside each storage cavity 22, and a matching reset plate 51 is slidably arranged on the outer surface of the storage tube 3 at a position corresponding to one group of the push plates 50;

[0056] A transmission assembly, used for driving the storage tube 3 to rotate, the transmission assembly comprising a slidably arranged extrusion rod 11, and an oblique groove 39 is formed on the upper end surface of the storage tube 3 at a position corresponding to the end of the extrusion rod 11;

[0057] The storage tube 3 is driven to rotate to a specified position by the transmission assembly, and the insulin bottle is pushed into the storage tube 3 by the sliding push plate 50. Then, the insulin in the insulin bottle is squeezed out by pressing the first injection rod 2, and is injected into the patient's body through the cooperation of the injection head 5.

[0058] Embodiment 2:

[0059] like Figure 2-Figure 3 as well as Figure 9-11 As shown, the structure of the insulin injection site positioning pen disclosed in the second embodiment of the present invention is basically the same as that in the first embodiment, except that:

[0060] A first return spring 9 is fixedly arranged between the end of the first injection rod 2 and the inside of the pen tube 1, and the first injection rod 2 is elastically inserted into the inside of the pen tube 1 through the first return spring 9;

[0061] A second push rod 8 is fixedly disposed at the center of the upper end surface of the first injection rod 2. The second push rod 8 is elastically disposed just above the injection tube 4 through the cooperation of the first injection rod 2.

[0062] An annular groove 53 is provided on the outer surface of the injection tube 4, and a fifth receiving groove 42 is provided on the inner wall of the upper end surface of the storage tube 3 at a position corresponding to the annular groove 53. A matching clamping block 41 is inserted inside the fifth receiving groove 42, and a matching eighth return spring 43 is fixedly provided between the end of the clamping block 41 and the inner wall of the fifth receiving groove 42, and the clamping block 41 is elastically inserted inside the annular groove 53 through the eighth return spring 43;

[0063] A third through hole 44 is formed on the outer surface of the storage tube 3, the third through hole 44 is connected to the fifth receiving groove 42, and a third pull rope 45 is disposed inside the third through hole 44, one end of the third pull rope 45 passes through the storage tube 3 and is connected to a pull block 46, and one end of the third pull rope 45 away from the pull block 46 is connected to the clamping block 41;

[0064] A first clearance groove 10 is formed on the inner wall of the pen tube 1 at a position corresponding to the end of the first injection rod 2, and a first through groove 14 is formed on the inner lower end surface of the first clearance groove 10, and the first through groove 14 penetrates the pen tube 1;

[0065] A matching extrusion rod 11 is slidably disposed inside the first give way groove 10, and the extrusion rod 11 is in an inverted "L"-shaped structure, and the vertical rod of the extrusion rod 11 is inserted into the first through groove 14, and a second return spring 13 is fixedly disposed between the transverse rod of the extrusion rod 11 and the inner lower end surface of the first give way groove 10, and the vertical rod of the extrusion rod 11 is elastically inserted into the first through groove 14 through the cooperation of the second return spring 13;

[0066] An inclined groove 12 is formed on the inner side wall of the first clearance groove 10 at a position corresponding to the extrusion rod 11, and the extrusion rod 11 slides up and down along the inclined groove 12;

[0067] The bevel grooves 39 are provided in four groups, and the four groups of bevel grooves 39 are evenly spaced and distributed. The cross section of the bevel grooves 39 is an arc-shaped triangular structure, and the size of the bevel grooves 39 is adapted to the size of the end of the extrusion rod 11.

[0068] The upper end surface of the storage tube 3 is provided with a triangular groove 40, and the triangular groove 40 is provided with four groups. The four groups of triangular grooves 40 are respectively provided between the ends of two adjacent groups of the beveled grooves 39, and the lower end surface of the pen tube 1 is provided with a sixth receiving groove 47 at a position corresponding to one group of the triangular grooves 40, and a matching triangular block 48 is inserted and provided inside the sixth receiving groove 47, and the triangular block 48 is matched with the triangular groove 40, and a matching ninth return spring 49 is fixedly provided between the upper end surface of the triangular groove 40 and the inner top end of the sixth receiving groove 47;

[0069] Through the cooperation of the elastically arranged clamping block 41 and the annular clamping groove 53, the storage tube 3 is sleeved on the outside of the injection tube 4. When the first injection rod 2 is pressed, the first injection rod 2 drives the second push rod 8 to move downward, at which time the reset plate 51 is unfolded, and the elastically arranged reset plate 51 is retracted into the groove 36. At the same time, the lower end of the first injection rod 2 squeezes the squeeze rod 11, and the end of the squeeze rod 11 is inserted into the bevel groove 39. Since the bevel groove 39 is inclined, through the cooperation of the squeeze rod 11, the storage tube 3 rotates along the injection tube 4, so that the insulin bottle inside the storage tube 3 is aligned with the third through groove 35.

[0070] When not pressed, the extrusion rod 11 moves out from the inside of the bevel groove 39. At this time, the elastically arranged triangular block 48 is on one side of the triangular groove 40. When the extrusion rod 11 no longer limits the rotation of the storage tube 3 through the bevel groove 39, the storage tube 3 continues to rotate a certain angle under the plug-in cooperation of the triangular block 48. At this time, the extrusion rod 11 is directly above another set of bevel grooves 39, which facilitates the extrusion rod 11 to continue to drive the storage tube 3 to rotate.

[0071] Embodiment three:

[0072] like Figure 2-Figure 8 As shown, the structure of the insulin injection site positioning pen disclosed in the third embodiment of the present invention is basically the same as that in the second embodiment, except that:

[0073] The storage tube 3 has storage cavities 22 corresponding to the positions of the bevel grooves 39, and the injection tube 4 has third through grooves 35 corresponding to the positions of one group of the storage cavities 22.

[0074] Each storage cavity 22 is slidably provided with a matching push plate 50, and a matching second abutment block 28 is fixedly provided between one end of the push plate 50 and the corresponding storage cavity 22, and the push plate 50 is elastically arranged inside the storage cavity 22 through the second abutment block 28;

[0075] The storage tube 3 is provided with a limit assembly inside, which is used to limit the elastic push plate 50;

[0076] The limiting assembly includes a fourth receiving groove 31 provided on the inner wall of the storage cavity 22, a matching plug block 33 is slidably inserted in the fourth receiving groove 31, and a matching sixth return spring 32 is provided between the end of the plug block 33 and the inner wall of the fourth receiving groove 31, the plug block 33 is elastically provided in the fourth receiving groove 31 by the sixth return spring 32, and a slot 34 is provided on the side wall of the push plate 50 at a position corresponding to the plug block 33;

[0077] A third receiving groove 26 is provided on the upper end surface of the storage tube 3 at a position corresponding to the inserting block 33, a second supporting block 28 matching the third receiving groove 26 is slidably provided inside the third receiving groove 26, a fifth returning spring 27 matching the second supporting block 28 is fixedly provided between the second supporting block 28 and the third receiving groove 26, and the second supporting block 28 is elastically provided inside the third receiving groove 26 through the fifth returning spring 27;

[0078] A second through hole 29 is provided between the third receiving groove 26 and the fourth receiving groove 31. A second pull rope 30 is provided inside the second through hole 29. Two ends of the second pull rope 30 are respectively connected to the side wall of the second abutting block 28 and the end of the inserting block 33.

[0079] A second receiving groove 23 is provided on the lower end surface of the pen tube 1 at a position corresponding to one group of the second abutting blocks 28, and a matching first abutting block 25 is inserted and arranged inside the second receiving groove 23, and a fourth return spring 24 is arranged between the first abutting block 25 and the second receiving groove 23, and the first abutting block 25 is elastically inserted into the second receiving groove 23 through the fourth return spring 24;

[0080] A first receiving groove 15 is provided inside the pen tube 1 at a position corresponding to the end of the first injection rod 2. The first receiving groove 15 is located below the first giving way groove 10, and a matching extrusion block 16 is inserted inside the first receiving groove 15, and a third return spring 17 is fixedly provided between the end of the extrusion block 16 and the inner wall of the first receiving groove 15. The extrusion block 16 is elastically inserted into the first receiving groove 15 through the third return spring 17, and the upper end surface of the extrusion block 16 is inclined;

[0081] A first through hole 18 is provided between the first receiving groove 15 and the second receiving groove 23. A first pull rope 19 is provided inside the first through hole 18. Two ends of the first pull rope 19 are respectively connected to the first abutting block 25 and the extruding block 16.

[0082] When the squeezing rod 11 is squeezed at the lower end of the first injection rod 2, the end of the squeezing rod 11 is inserted into the inside of the bevel groove 39. Since the bevel groove 39 is inclined, the storage tube 3 rotates along the injection tube 4 through the cooperation of the squeezing rod 11, so that the insulin bottle inside the storage tube 3 is aligned with the third through groove 35. When the end of the first injection rod 2 squeezes the elastically arranged squeezing block 16, the elastically arranged first abutting block 25 presses down the elastically arranged second abutting block 28. The second abutting block 28 drives the inserting block 33 to move out of the inside of the slot 34 through the cooperation of the second pull rope 30. The elastically arranged push plate 50 can push the insulin bottle into the inside of the injection tube 4 to facilitate injection.

[0083] Embodiment 4:

[0084] like Figure 2 and Figure 7 As shown, the structure of the insulin injection site positioning pen disclosed in the fourth embodiment of the present invention is basically the same as that in the third embodiment, except that:

[0085] A groove 36 is formed on the inner wall of the injection tube 4 at a position corresponding to the third through groove 35, a matching reset plate 51 is disposed inside the groove 36, and a matching seventh reset spring 38 is fixedly disposed between the side wall of the reset plate 51 and the inner side wall of the groove 36;

[0086] A first air bag 37 is fixedly provided between the side wall of the reset plate 51 and the inner side wall of the groove 36;

[0087] A second airbag 52 is fixedly arranged between the upper end surface of the second push rod 8 away from the first injection rod 2 and the inside of the pen tube 1. A first exhaust pipe 20 is provided between the second airbag 52 and the first airbag 37. The second airbag 52 is connected to the first airbag 37 through the first exhaust pipe 20, and the elastic force of the first return spring 9 is greater than the elastic force of the seventh return spring 38.

[0088] After the injection is completed, the first injection rod 2 is reset under the action of the first reset spring 9. At this time, the end of the second push rod 8 compresses the reset plate 51, and the gas inside the reset plate 51 is discharged into the first air bag 37 through the first exhaust pipe 20. The first air bag 37 expands and pushes the reset plate 51 to push the insulin bottle back into the storage chamber 22.

[0089] The specific solution is as follows: the insulin bottle is placed inside the storage cavity 22, and then the storage tube 3 is sleeved on the outer surface of the injection tube 4. The elastically arranged clamping block 41 and the annular groove 53 cooperate to make the storage tube 3 sleeved on the outside of the injection tube 4. When the first injection rod 2 is pressed, the first injection rod 2 drives the second push rod 8 to move downward. At this time, the reset plate 51 is unfolded, and the elastically arranged reset plate 51 is retracted into the groove 36. At the same time, the lower end of the first injection rod 2 squeezes the squeezing rod 11, and the end of the squeezing rod 11 is inserted into the oblique groove 39. Since the oblique groove 39 is arranged obliquely, the storage tube 3 rotates along the injection tube 4 through the cooperation of the squeezing rod 11, so that the insulin bottle inside the storage tube 3 is aligned with the third through groove 35. When the end of the first injection rod 2 squeezes the elastically arranged squeezing block 16, the elastically arranged first abutting block 25 presses down the elastically arranged second abutting block 28. The second abutting block 28 drives the inserting block 33 to move out of the slot 34 through the cooperation of the second pull rope 30. The elastically arranged push plate 50 can push the insulin bottle into the injection tube 4 to facilitate injection.

[0090] After the injection is completed, under the action of the first return spring 9, the first injection rod 2 is reset. At this time, the end of the second push rod 8 compresses the reset plate 51, and the internal gas of the reset plate 51 is discharged to the inside of the first airbag 37 through the first exhaust pipe 20. The first airbag 37 expands and pushes the reset plate 51 to push the insulin bottle back into the storage chamber 22.

[0091] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0092] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An insulin injection site locator pen, characterized in that: include: A pen tube (1), wherein a first injection rod (2) is slidably inserted into the interior of the pen tube (1), and a first injection rod (2) is slidably inserted into the interior of the pen tube (1), and a first injection tube (4) is slidably inserted into the interior of the pen tube (1), and a first injection tube (4) is slidably inserted into the interior of the pen tube (1), and a first injection tube (5 ... A storage tube (3) is rotatably sleeved on the outer surface of the injection tube (4), and a plurality of storage cavities (22) are provided inside the storage tube (3) and are spaced apart from each other. A matching push plate (50) is slidably provided inside each storage cavity (22), and a matching reset plate (51) is slidably provided on the outer surface of the storage tube (3) at a position corresponding to one of the push plates (50); A transmission assembly is used to drive the storage tube (3) to rotate, the transmission assembly comprising a slidably arranged extrusion rod (11), and an oblique groove (39) is provided on the upper end surface of the storage tube (3) at a position corresponding to the end of the extrusion rod (11).

2. The insulin injection site locator pen according to claim 1, characterized in that: A first return spring (9) is fixedly arranged between the end of the first injection rod (2) and the inside of the pen tube (1), and the first injection rod (2) is elastically inserted into the inside of the pen tube (1) through the first return spring (9); A matching second push rod (8) is fixedly arranged at the center position of the upper end surface of the first injection rod (2). The second push rod (8) is elastically arranged just above the injection tube (4) through the cooperation of the first injection rod (2).

3. The insulin injection site locator pen according to claim 2, characterized in that: The outer surface of the injection tube (4) is provided with an annular groove (53), and the inner wall of the upper end surface of the storage tube (3) is provided with a fifth receiving groove (42) at a position corresponding to the annular groove (53), and a matching clamping block (41) is inserted inside the fifth receiving groove (42), and a matching eighth return spring (43) is fixedly arranged between the end of the clamping block (41) and the inner wall of the fifth receiving groove (42), and the clamping block (41) is elastically inserted into the inside of the annular groove (53) through the eighth return spring (43); A third through hole (44) is provided on the outer surface of the storage tube (3), the third through hole (44) is connected to the fifth receiving groove (42), and a third pull rope (45) is provided inside the third through hole (44), one end of the third pull rope (45) passes through the storage tube (3) and is connected to a pull block (46), and one end of the third pull rope (45) away from the pull block (46) is connected to the clamping block (41).

4. The insulin injection site locator pen according to claim 3, characterized in that: A first clearance groove (10) is provided on the inner wall of the pen tube (1) at a position corresponding to the end of the first injection rod (2), and a first through groove (14) is provided on the inner lower end surface of the first clearance groove (10), and the first through groove (14) passes through the pen tube (1); A matching extrusion rod (11) is slidably arranged inside the first give-way groove (10), the extrusion rod (11) is in an inverted "L"-shaped structure, and the vertical rod of the extrusion rod (11) is inserted into the first through groove (14), a second return spring (13) is fixedly arranged between the transverse rod of the extrusion rod (11) and the inner lower end surface of the first give-way groove (10), and the vertical rod of the extrusion rod (11) is elastically inserted into the first through groove (14) through the cooperation of the second return spring (13); An inclined groove (12) is provided on the inner side wall of the first clearance groove (10) at a position corresponding to the extrusion rod (11), and the extrusion rod (11) slides up and down along the inclined groove (12).

5. The insulin injection site locator pen according to claim 4, characterized in that: The bevel grooves (39) are provided in four groups, the four groups of bevel grooves (39) are evenly spaced, and the cross-section of the bevel grooves (39) is an arc-shaped triangular structure, and the size of the bevel grooves (39) is adapted to the size of the end of the extrusion rod (11); The upper end surface of the storage tube (3) is provided with a triangular groove (40), and the triangular groove (40) is provided with four groups. The four groups of triangular grooves (40) are respectively provided between the ends of two adjacent groups of the bevel grooves (39), and the lower end surface of the pen tube (1) is provided with a sixth receiving groove (47) at a position corresponding to one group of the triangular grooves (40), and a matching triangular block (48) is inserted and arranged inside the sixth receiving groove (47), and the triangular block (48) is matched with the triangular groove (40), and a matching ninth return spring (49) is fixedly arranged between the upper end surface of the triangular groove (40) and the inner top end of the sixth receiving groove (47).

6. The insulin injection site locator pen according to claim 5, characterized in that: The storage tube (3) has a storage cavity (22) corresponding to the position of each of the bevel grooves (39) formed inside, and a third through groove (35) corresponding to the position of one group of the storage cavities (22) is formed on the outer surface of the injection tube (4); A matching push plate (50) is slidably disposed inside each storage cavity (22), a matching second abutting block (28) is fixedly disposed between one end of the push plate (50) and the inside of the corresponding storage cavity (22), and the push plate (50) is elastically disposed inside the storage cavity (22) via the second abutting block (28); A limiting component is arranged inside the storage tube (3) for limiting the position of the elastically arranged push plate (50).

7. The insulin injection site locator pen according to claim 6, characterized in that: The limiting assembly comprises a fourth receiving groove (31) provided on the inner wall of the storage cavity (22), a matching plug block (33) is slidably inserted inside the fourth receiving groove (31), and a matching sixth return spring (32) is provided between the end of the plug block (33) and the inner wall of the fourth receiving groove (31), the plug block (33) is elastically provided inside the fourth receiving groove (31) by the sixth return spring (32), and a slot (34) is provided on the side wall of the push plate (50) at a position corresponding to the plug block (33); A third receiving groove (26) is provided on the upper end surface of the storage tube (3) at a position corresponding to the inserting block (33); a second supporting block (28) is slidably arranged inside the third receiving groove (26); a fifth returning spring (27) is fixedly arranged between the second supporting block (28) and the third receiving groove (26); the second supporting block (28) is elastically arranged inside the third receiving groove (26) by the fifth returning spring (27); A second through hole (29) is provided between the third receiving groove (26) and the fourth receiving groove (31), a second pull rope (30) is provided inside the second through hole (29), and two ends of the second pull rope (30) are respectively connected to the side wall of the second supporting block (28) and the end of the inserting block (33).

8. The insulin injection site locator pen according to claim 7, characterized in that: A second receiving groove (23) is provided on the lower end surface of the pen tube (1) at a position corresponding to one group of the second abutting blocks (28); a first abutting block (25) adapted to the second receiving groove (23) is inserted and arranged inside the second receiving groove (23); a fourth return spring (24) is arranged between the first abutting block (25) and the second receiving groove (23); the first abutting block (25) is elastically inserted into the second receiving groove (23) through the fourth return spring (24); A first receiving groove (15) is provided inside the pen tube (1) at a position corresponding to the end of the first injection rod (2), the first receiving groove (15) is located below the first giving way groove (10), and a matching extrusion block (16) is inserted inside the first receiving groove (15), and a third return spring (17) is fixedly arranged between the end of the extrusion block (16) and the inner wall of the first receiving groove (15), the extrusion block (16) is elastically inserted into the first receiving groove (15) through the third return spring (17), and the upper end surface of the extrusion block (16) is inclined; A first through hole (18) is provided between the first receiving groove (15) and the second receiving groove (23), a first pull rope (19) is provided inside the first through hole (18), and two ends of the first pull rope (19) are respectively connected to the first supporting block (25) and the extrusion block (16).

9. The insulin injection site locator pen according to claim 8, characterized in that: A groove (36) is provided on the inner wall of the injection tube (4) at a position corresponding to the third through groove (35), a matching reset plate (51) is provided inside the groove (36), and a matching seventh reset spring (38) is fixedly provided between the side wall of the reset plate (51) and the inner side wall of the groove (36).

10. The insulin injection site locator pen according to claim 9, characterized in that: A first air bag (37) adapted to the groove (36) is fixedly provided between the side wall of the reset plate (51) and the inner side wall of the groove (36); A second airbag (52) is fixedly arranged between the upper end surface of the second push rod (8) away from the first injection rod (2) and the interior of the pen tube (1), a first exhaust pipe (20) is provided between the second airbag (52) and the first airbag (37), the second airbag (52) is connected to the first airbag (37) through the first exhaust pipe (20), and the elastic force of the first return spring (9) is greater than the elastic force of the seventh return spring (38).

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