Syringe propelling device

Abstract

The utility model provides an injector propelling device which comprises a first support, a second support, a first limiting block, a second limiting block and a propelling mechanism. The second support is slidably connected with the first support, and the second support and the first support are arranged in parallel and can slide to be close to or away from each other. The first limiting block is connected with the inner side of the first support. The second limiting block is connected with the inner side of the second support. And the propelling mechanism is used for propelling the injector pressing handle. According to the utility model, after the first support and the second support are close to each other, the first limiting block and the second limiting block are close to each other, the first arc-shaped notch and the second arc-shaped notch limit the syringe needle cylinder, then the pushing mechanism applies force to the pressing hand, the pressing hand moves to be close to the rolled edge of the needle cylinder, and the rolled edge of the needle cylinder abuts against the first limiting block and the second limiting block; and the injection of the liquid medicine is realized. Under some circumstances, when the injection pressure is large, medical staff can easily and stably complete liquid medicine injection.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a syringe propulsion device. Background Art

[0002] Syringes are widely used and common in clinical practice. In practice, medical staff have found that after the syringe needle is inserted into the needle, sometimes the pressure is too high and the injection is difficult. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a syringe propulsion device, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems in the prior art.

[0004] The utility model provides a syringe propulsion device, comprising:

[0005] First bracket;

[0006] A second bracket is slidably connected to the first bracket, arranged in parallel with the first bracket, and can slide closer to or away from each other;

[0007] A first limiting block is connected to the inner side of the first bracket, and the inner side of the first limiting block is provided with a first arc-shaped notch that can fit with the outer wall of the syringe barrel;

[0008] a second limiting block connected to the inner side of the second bracket, wherein the inner side of the second limiting block is provided with a second arc-shaped notch which can fit with the outer wall of the syringe barrel; and

[0009] A propulsion mechanism, disposed on the second bracket, for manually propelling the syringe;

[0010] When the first bracket and the second bracket are close to each other, the first arc-shaped notch and the second arc-shaped notch limit the syringe barrel, and the first limiting block and the second limiting block can simultaneously abut against the curled edge of the syringe.

[0011] Preferably, the propulsion mechanism comprises:

[0012] A mounting tube connected to the second bracket;

[0013] A matching block, which can be kept in the installation tube and is provided with a first hole;

[0014] A motor is slidably disposed in the mounting tube, and an end of the motor facing away from the matching block is connected to a propulsion block; and

[0015] A rotating shaft, one end of which is connected to the output end of the motor, and the other end of which is threadedly connected to the first hole;

[0016] The push block can be pressed against the syringe hand.

[0017] Preferably, a strip-shaped mounting hole is opened on one side of the mounting tube along its axial direction; an elastically retractable ratchet block is arranged on one side of the mating block; the ratchet block is located in the strip-shaped mounting hole; a ratchet bar is connected to a side of the first bracket facing the mounting tube; the ratchet bar can be inserted into the strip-shaped mounting hole; the ratchet block can cooperate with the ratchet bar so that the mating block can only move toward the second limit block.

[0018] Preferably, a first insertion gap is opened on one side of the mounting tube; the first insertion gap is used for manually inserting the syringe; a second insertion gap is formed between the first limiting block and the second limiting block; the second insertion gap is used for inserting the syringe barrel.

[0019] Preferably, one end of the mounting tube away from the second limiting block is closed; a second hole is formed at the closed end of the mounting tube; and the end of the rotating shaft is gap-fitted with the second hole.

[0020] Preferably, an elastic binding belt is respectively provided on a surface of the first bracket and the second bracket facing away from each other; two ends of the binding belt are respectively connected to the outer wall of the first bracket or the second bracket.

[0021] Preferably, a third hole is provided on one surface of the mating block; a limiting ring is provided at the mouth of the third hole; a sliding block which slides along the center line direction is provided in the third hole; the sliding block can slide and abut against the limiting ring; one end of the ratchet block passes through the limiting ring and is connected to the sliding block; a spring is connected to the end of the sliding block which is away from the ratchet block; and the end of the spring which is away from the sliding block abuts against the bottom of the third hole.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] In the utility model, after the first bracket and the second bracket are close to each other, the first limit block and the second limit block are close to each other, the first arc notch and the second arc notch limit the syringe barrel, and then the pushing mechanism applies force to the pressing hand, the pressing hand moves close to the syringe curling edge, the syringe curling edge and the first limit block and the second limit block are against each other, so as to realize the push injection of the liquid medicine. In some cases, when the injection pressure is relatively high, the medical staff can complete the push injection of the liquid medicine more easily and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0025] Figure 1 A perspective view of a syringe propulsion device cooperating with a syringe in an embodiment of the present utility model;

[0026] Figure 2 For Figure 1 a perspective view of a syringe propulsion device;

[0027] Figure 3 For Figure 2 an exploded view (looking up);

[0028] Figure 4 For Figure 3 a perspective view (looking down) of the cooperation between the second bracket and the mounting cylinder in

[0029] Figure 5 For Figure 2 a cross-sectional view;

[0030] Figure 6 a perspective view of the cooperation between the mating block and the rotating shaft;

[0031] Figure 7 For Figure 6 a cross-sectional view of the mating block in

[0032] Reference numerals:

[0033] 10. First bracket; 11. Ratchet rack;

[0034] 20. Second bracket;

[0035] 30. First limiting block; 31. First arc-shaped notch;

[0036] 40. Second limiting block; 41. Second arc-shaped notch; 42. Second insertion notch;

[0037] 50. Propulsion mechanism; 51. Mounting cylinder; 511. Strip-shaped mounting hole; 512. First insertion notch; 513. Second hole; 52. Mating block; 521. First hole; 522. Third hole; 53. Motor; 54. Propulsion block; 55. Rotating shaft; 56. Ratchet block; 57. Limiting ring; 58. Sliding block; 59. Spring; 60. Syringe barrel; 61. Pressing hand; 62. Barrel curling;

[0038] 70. Binding strap. Specific embodiments

[0039] The embodiments of the technical solution of the present utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and therefore are only examples and cannot be used to limit the protection scope of the present utility model.

[0040] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those skilled in the art to which the present utility model belongs.

[0041] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0042] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] In this application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0045] SeeFigures 1 to 7 In this embodiment, a syringe propulsion device is provided, which includes a first bracket 10, a second bracket 20, a first limiting block 30, a second limiting block 40, and a propulsion mechanism 50.

[0046] The second bracket 20 is slidably connected to the first bracket 10. The second bracket 20 is arranged in parallel with the first bracket 10 and can slide close to or away from each other. The first limiting block 30 is connected to the inner side of the first bracket 10, and a first arc-shaped notch 31 that can fit against the outer wall of the syringe barrel 60 is provided on the inner side of the first limiting block 30.

[0047] The second limiting block 40 is connected to the inner side of the second bracket 20, and a second arc-shaped notch 41 that can fit against the outer wall of the syringe barrel 60 is provided on the inner side of the second limiting block 40. The first limiting block 30 and the second limiting block 40 are located between the first bracket 10 and the second bracket 20.

[0048] The propulsion mechanism 50 is arranged on the second bracket 20 and is used to propel the syringe push-button 61. When the first bracket 10 and the second bracket 20 approach each other, the first arc-shaped notch 31 and the second arc-shaped notch 41 limit the syringe barrel 60, so that the syringe barrel 60 can only rotate or slide within the first arc-shaped notch 31 and the second arc-shaped notch 41. The first limiting block 30 and the second limiting block 40 can simultaneously abut against the barrel flange 62. Specifically, the syringe includes a syringe barrel 60, the end of the syringe barrel 60 is the barrel flange 62, a piston rod is inserted into the syringe barrel 60, and the end of the piston rod is the push-button 61. When used by medical staff, the index finger and the middle finger apply force on one side of the barrel flange 62, and the thumb presses the push-button 61 for injection.

[0049] In addition, two through connection holes are formed in the first limiting block 30, and the diameter of the end of the connection hole far from the second limiting block 40 increases and expands to form a limiting hole; two connecting rods are connected to the second limiting block 40, the connecting rods are slidably matched with the corresponding connection holes, and a limiting block is connected to the end of the connecting rod far from the second limiting block 40, and the limiting block is slidably matched with the limiting hole; due to the shorter axial length of the connection hole and the longer axial length of the limiting hole, the first bracket 10 and the second bracket 20 can approach or move away from each other without detachment.

[0050] In this embodiment, the crimped edge 62 of the syringe barrel and the pressing hand 61 are placed between the first bracket 10 and the second bracket 20. At this time, the first limiting block 30 and the second limiting block 40 are located on the side of the crimped edge 62 of the syringe barrel, and the pushing mechanism 50 is located on the side of the pressing hand 61. After the first bracket 10 and the second bracket 20 approach each other, the first limiting block 30 and the second limiting block 40 approach each other, and the first arc-shaped notch 31 and the second arc-shaped notch 41 limit the syringe barrel 60. Then, the pushing mechanism 50 applies a force to the pressing hand 61, and the pressing hand 61 moves closer to the crimped edge 62 of the syringe barrel. The crimped edge 62 of the syringe barrel abuts against the first limiting block 30 and the second limiting block 40, realizing the injection of the liquid medicine. In some cases, when the injection pressure is relatively high, medical staff can complete the injection of the liquid medicine more easily and stably. In addition, when the injection pressure is relatively high, if one forcibly injects the liquid medicine with great effort, there may be situations such as the hand slipping and causing the injection to fail or the injection needle stabbing. This device can reduce the occurrence of such situations.

[0051] In one embodiment, the pushing mechanism 50 includes an installation cylinder 51, a mating block 52, a motor 53, and a rotating shaft 55.

[0052] The installation cylinder 51 is connected to the second bracket 20. The mating block 52 can be kept stationary within the installation cylinder 51, and a first hole 521 is provided on the mating block 52. The motor 53 is slidably arranged within the installation cylinder 51, and a pushing block 54 is connected to the end of the motor 53 facing away from the mating block 52. The outer wall of the motor 53 can be covered with a housing, and this housing is slidably connected to the inner wall of the installation cylinder 51. One end of the rotating shaft 55 is connected to the output end of the motor 53, and the other end of the rotating shaft 55 is threadedly connected to the first hole 521. The pushing block 54 can abut against the syringe pressing hand 61.

[0053] In this embodiment, by driving the rotating shaft 55 to rotate with the motor 53, the motor 53 itself and the pushing block 54 can be driven to push the pressing hand 61 of the syringe.

[0054] In one embodiment, a strip-shaped installation hole 511 along its axial direction is provided on one side of the installation cylinder 51; an elastically telescopic ratchet block 56 is provided on one side of the mating block 52; the ratchet block 56 is located within the strip-shaped installation hole 511; a ratchet rack 11 is connected to the surface of the first bracket 10 facing the installation cylinder 51; the ratchet rack 11 can be inserted into the strip-shaped installation hole 511; the ratchet block 56 can cooperate with the ratchet rack 11 so that the mating block 52 can only move towards the second limiting block 40. Specifically, the teeth on the ratchet block 56 and the ratchet rack 11 can refer to the structure of the teeth in a ratchet and pawl.

[0055] In this embodiment, the syringe pressing hand 61 enters the installation cylinder 51. By adjusting the position of the fitting block 52, the rotating shaft 55, the motor 53, and the pushing block 54 connected to the fitting block 52 can move quickly and abut against the syringe pressing hand 61. After the first bracket 10 approaches the second bracket 20, the ratchet rack 11 approaches and inserts into the strip-shaped installation hole 511. The elastically telescopic ratchet block 56 cooperates with the ratchet rack 11, so that the fitting block 52 can only move in the direction of the syringe pressing hand 61. After the pushing block 54 abuts against the pressing hand 61, the motor 53 drives itself to apply force to the pressing hand 61 through the pushing block 54 to complete the injection of the syringe. After the injection is completed, the first bracket 10 moves away from the second bracket 20, and the entire second bracket 20 is placed vertically. The fitting block 52 is located below the motor 53. At this time, the motor 53 drives the rotating shaft 55 to rotate, so that the motor 53 and the fitting block 52 approach each other, realizing the reset of their positions and preparing for the next injection.

[0056] In one embodiment, a first insertion notch 512 is formed on one side of the installation cylinder 51; the first insertion notch 512 is used for inserting the syringe pressing hand 61; a second insertion notch 42 is formed between the first limiting block 30 and the second limiting block 40; the second insertion notch 42 is used for inserting the syringe barrel 60.

[0057] In this embodiment, through the settings of the first insertion notch 512 and the second insertion notch 42, the syringe can be placed into the device from the side, which is more convenient to use and is also conducive to observing the state of the syringe in the device.

[0058] In one embodiment, one end of the installation cylinder 51 away from the second limiting block 40 is closed; a second hole 513 is formed in the closed end of the installation cylinder 51; the end of the rotating shaft 55 is in clearance fit with the second hole 513.

[0059] In this embodiment, the closed end of the installation cylinder 51 can prevent the fitting block 52 from slipping off.

[0060] In one embodiment, elastic restraint bands 70 are respectively provided on the mutually facing surfaces of the first bracket 10 and the second bracket 20; both ends of the restraint band 70 are respectively connected to the outer walls of the first bracket 10 or the second bracket 20.

[0061] In this embodiment, the thumb of the medical staff passes through the restraint band 70 on the second bracket 20, and the other four fingers pass through the restraint band 70 on the first bracket 10, so that the medical staff can operate with one hand to realize the mutual approach or separation of the first bracket 10 and the second bracket 20.

[0062] In one embodiment, a third hole 522 is formed in one surface of the mating block 52; a limiting ring 57 is provided at the mouth of the third hole 522; a sliding block 58 that slides along the center line direction is provided in the third hole 522; the sliding block 58 can slide and abut against the limiting ring 57 after that; one end of the ratchet block 56 passes through the limiting ring 57 and is connected to the sliding block 58; a spring 59 is connected to the end of the sliding block 58 away from the ratchet block 56; the end of the spring 59 away from the sliding block 58 abuts against the bottom of the third hole 522. In addition, more than one spring 59 can be provided, and a guide post can also be connected to the sliding block 58. The guide post is located inside the spring 59, and the guide post can prevent the spring 59 from deforming laterally. The elastic expansion and contraction of the ratchet block 56 is realized through the spring 59 and the sliding block 58.

[0063] In the description of the present utility model, a large number of specific details are set forth. However, it can be understood that the embodiments of the present utility model can be practiced without these specific details. In some instances, well-known methods, structures, and technologies are not shown in detail so as not to obscure the understanding of this description.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model, and they should all be covered by the scope of the claims and the description of the present utility model.

Claims

1. A syringe propulsion device, characterized in that, Comprising: A first bracket (10); A second bracket (20), slidably connected to the first bracket (10), arranged in parallel with the first bracket (10) and capable of sliding closer to or away from each other; A first limiting block (30), connected to the inner side of the first bracket (10), and a first arc-shaped notch (31) capable of fitting with the outer wall of the syringe barrel (60) is arranged on the inner side of the first limiting block (30); A second limiting block (40), connected to the inner side of the second bracket (20), and a second arc-shaped notch (41) capable of fitting with the outer wall of the syringe barrel (60) is arranged on the inner side of the second limiting block (40); and A pushing mechanism (50), arranged on the second bracket (20) for pushing the syringe plunger (61); When the first bracket (10) and the second bracket (20) approach each other, the first arc-shaped notch (31) and the second arc-shaped notch (41) limit the syringe barrel (60), and the first limiting block (30) and the second limiting block (40) can simultaneously abut against the barrel edge (62).

2. The syringe propulsion device according to claim 1, characterized in that, The pushing mechanism (50) includes: A mounting cylinder (51), connected to the second bracket (20); A mating block (52), which can remain stationary within the mounting cylinder (51), and a first hole (521) is formed therein; A motor (53), slidably arranged within the mounting cylinder (51), and a pushing block (54) is connected to the end thereof facing away from the mating block (52); and A rotating shaft (55), one end of which is connected to the output end of the motor (53), and the other end of which is threadedly connected to the first hole (521); The pushing block (54) can abut against the syringe plunger (61).

3. The syringe propulsion device according to claim 2, characterized in that, A strip-shaped mounting hole (511) along its axial direction is formed on one side of the mounting cylinder (51); an elastically telescopic ratchet block (56) is arranged on one side of the mating block (52); the ratchet block (56) is located within the strip-shaped mounting hole (511); a ratchet rack (11) is connected to the surface of the first bracket (10) facing the mounting cylinder (51); the ratchet rack (11) can be inserted into the strip-shaped mounting hole (511); the ratchet block (56) can cooperate with the ratchet rack (11) so that the mating block (52) can only move towards the second limiting block (40).

4. The syringe propulsion device according to claim 3, wherein, A first insertion notch (512) is formed on one side of the mounting cylinder (51); the first insertion notch (512) is used for inserting the syringe plunger (61); a second insertion notch (42) is formed between the first limiting block (30) and the second limiting block (40); the second insertion notch (42) is used for inserting the syringe barrel (60).

5. The syringe propulsion device according to claim 4, wherein One end of the mounting cylinder (51) away from the second limiting block (40) is closed; a second hole (513) is formed in the closed end of the mounting cylinder (51); the end of the rotating shaft (55) has a clearance fit with the second hole (513).

6. The syringe propulsion device according to claim 5, characterized in that, On the sides of the first bracket (10) and the second bracket (20) facing away from each other, elastic restraint straps (70) are respectively provided; both ends of the restraint strap (70) are connected to the outer walls of the first bracket (10) or the second bracket (20).

7. A syringe propulsion device according to any one of claims 3-6, characterized in that, On one side of the mating block (52), a third hole (522) is formed; a limiting ring (57) is provided at the opening of the third hole (522); a sliding block (58) that slides along the central axis direction is provided in the third hole (522); the sliding block (58) can slide and abut against the limiting ring (57); one end of the ratchet block (56) passes through the limiting ring (57) and is connected to the sliding block (58); a spring (59) is connected to the end of the sliding block (58) facing away from the ratchet block (56); the end of the spring (59) away from the sliding block (58) abuts against the bottom of the third hole (522).

Images