Intravenous gluing gun capable of adjusting injection volume

Abstract

The utility model discloses an injection volume adjustable intravenous gluing gun, which comprises a shell, a pushing rod, a button, a transmission mechanism and a rotation control structure, one side of the shell is provided with a pushing channel, one side of the pushing channel is provided with a clamping groove, the pushing rod is movably arranged in the shell, and the button is arranged in the clamping groove. The push rod is arranged in the shell, one end of the push rod extends into the push channel and is in limiting contact with a push rod of an injector, the other end of the push rod extends to the outside of the shell, the rotating end of the button is rotationally installed in the shell, the transmission mechanism is arranged between the button and the push rod, and the push rod is in limiting contact with the push rod of the injector. And the rotation control structure is used for converting knob torsion of the button into pushing force for forward movement of the pushing rod, and the rotation control structure is arranged between the button and the shell so as to control the forward pushing distance of the pushing rod. According to the utility model, not only is the operation difficulty of medical personnel reduced, but also the treatment effect on a patient is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a vein gluing gun with adjustable injection volume. Background Art

[0002] The methods for treating varicose veins on the market generally include elastic stockings, stripping surgery, thermal ablation, etc. However, these traditional methods have some problems, such as large surgical trauma, many scars, and high recurrence rate. Therefore, many doctors now use varicose vein intracavitary closure surgery systems, using medical adhesives to accurately close the patient's lesion site, thereby greatly shortening the operation time and improving treatment efficiency.

[0003] However, in existing varicose vein intracavitary closure surgery, the instrument operation is to control the injection of glue by pressing the handle of the glue gun. Since the venous anatomical sizes of different patients are different, the amount of injected glue is also different, resulting in the doctor only being able to control the injection amount by controlling the depth of pressing the handle each time. This increases the difficulty of the doctor's surgical operation and reduces the effectiveness of the surgical treatment. Summary of the invention

[0004] In view of the above problems existing in the existing gluing guns, the present invention aims to provide an intravenous gluing gun with adjustable injection volume, which reduces the difficulty of operation and improves the treatment effect.

[0005] The specific technical solutions are as follows:

[0006] A venous glue gun with adjustable injection volume, comprising:

[0007] A housing, one side of the housing having a propulsion channel for accommodating a push rod of the syringe, and one side of the propulsion channel having a card slot for clamping a base of the syringe;

[0008] A push rod, wherein the push rod is movably mounted in the housing, one end of the push rod extends into the push channel and contacts with the push rod of the syringe, and the other end of the push rod extends to the outside of the housing;

[0009] A button, one end of which is rotatably mounted in the housing;

[0010] A transmission mechanism, the transmission mechanism is provided between the button and the push rod, and is used to convert the knob torque of the button into a thrust for the push rod to move forward;

[0011] A rotation control structure is provided between the button and the housing and is used to control the maximum rotation angle of the button so as to control the forward advancement distance of the advancement rod.

[0012] As a further improvement and optimization of this solution, the rotation control structure includes:

[0013] A limit block, the limit block is rotatably disposed in the housing, and the limit block has a first limit surface and a second limit surface distributed circumferentially thereon;

[0014] In which, the button is provided with a limiting protrusion, and the limiting protrusion is located below the limiting block. When the limiting block is rotated so that the first limiting surface / the second limiting surface is set downward, the limiting protrusion cooperates with the first limiting surface / the second limiting surface in a circumferential manner, and when the limiting protrusion is circumferentially limited by the first limiting surface, the maximum rotation angle of the limiting block is greater than the maximum rotation angle of the limiting block when the limiting protrusion is circumferentially limited by the second limiting surface.

[0015] As a further improvement and optimization of the present solution, the limit block is rotatably installed in the shell via a rotating shaft, and both ends of the rotating shaft extend to the outside of the shell.

[0016] As a further improvement and optimization of this solution, one end of the shell has two card plates, one end of the two card plates are respectively connected to the two sides of one end of the shell, and the other ends are respectively inclined toward the propulsion channel, and the card groove is formed between the two card plates and the shell.

[0017] As a further improvement and optimization of this solution, a return torsion spring is provided between the button and the shell, the return torsion spring is installed in the shell, one end of the return torsion spring is in contact with the inner limit of the other end of the button, and the other end is in contact with the shell limit, and the return torsion spring applies an elastic force to the button to rotate outward.

[0018] As a further improvement and optimization of this solution, the transmission mechanism includes:

[0019] A limit slider, which can be longitudinally slidably installed in the housing, the limit slider is movably sleeved on the outside of the propulsion rod, and the bottom of the limit slider has a pressing groove with one side open;

[0020] A ratchet, wherein the ratchet is arranged below the push rod, and one end of the ratchet is rotatably connected to the top of the button, and the side surface of the other end of the ratchet has a pressing shaft, and the pressing shaft is movably arranged in the pressing groove, and the push rod is a ratchet strip;

[0021] A limit torsion spring is arranged in the shell, and one end of the limit torsion spring is in limit contact with the limit slider, and the other end is in limit contact with the shell, and is used to apply an upward elastic force to the limit slider to make the other end of the pawl engage with the ratchet bar.

[0022] As a further improvement and optimization of the present solution, the shell has ribs inside, and the spines can be slidably installed in the ribs.

[0023] As a further improvement and optimization of the present solution, the shell also has a clamping block, which is sleeved on the outside of the ratchet bar, and has at least one elastic member inside the clamping block, one end of the elastic member is connected to the clamping block, and the other end is in contact with the ratchet bar, for applying a downward elastic force to the ratchet bar to press the ratchet bar into the rib.

[0024] As a further improvement and optimization of this solution, the top of the limit sliding block extends to above the shell.

[0025] Compared with the prior art, the above technical solution has the following positive effects:

[0026] (1) In the utility model, the button is pressed inward and the rotation torque of the button is converted into the thrust of the push rod moving forward through the transmission mechanism, so that the push rod pushes the push rod of the syringe to inject glue. The maximum rotation angle of the button can be controlled by the rotation control structure to control the forward displacement of the push rod, thereby accurately controlling the amount of glue discharged from the syringe, which not only reduces the operating difficulty of medical staff, but also greatly improves the treatment effect on patients.

[0027] (2) In the utility model, after the injection of a tube of adhesive for injection is completed, the ratchet is pushed to the leftmost position as the button is pressed. At this time, the limit slider can be pressed downward to put the ratchet and the pawl in a non-matching state, and the ratchet can be withdrawn. After withdrawing to the bottom, the syringe can be reinserted to achieve the effect of adjusting the total injection volume or replacing the syringe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of a venous gluing gun with adjustable injection volume according to the utility model;

[0029] Figure 2 It is a schematic diagram of the transmission structure of a venous gluing gun with adjustable injection volume according to the utility model;

[0030] Figure 3 It is a cross-sectional view of a venous gluing gun with adjustable injection volume according to the utility model;

[0031] Figure 4 This is a schematic structural diagram of a limit block of an intravenous gluing gun with adjustable injection volume according to the utility model;

[0032] Figure 5 It is a schematic structural diagram of the limiting cooperation between the limiting convex strip and the first limiting surface of an intravenous gluing gun with adjustable injection volume according to the utility model;

[0033] Figure 6 It is a schematic structural diagram of the limiting cooperation between the limiting convex strip and the second limiting surface of an intravenous gluing gun with adjustable injection volume according to the utility model;

[0034] Figure 7 It is a schematic diagram of the structure of the ratchet and the ratchet strip of the intravenous gluing gun with adjustable injection volume of the utility model being disengaged from each other;

[0035] Figure 8 It is a schematic diagram of the structure of the syringe of the intravenous gluing gun with adjustable injection volume after being assembled according to the utility model;

[0036] Fig. 9 It is a cross-sectional view of the syringe of the intravenous gluing gun with adjustable injection volume after being assembled;

[0037] In the accompanying drawings: 1. housing; 2. button; 3. push rod; 4. transmission mechanism; 5. reset torsion spring; 6. limit block; 7. syringe; 11. card slot; 12. push channel; 13. card plate; 14. rib; 41. ratchet; 42. limit slider; 43. limit torsion spring; 44. clamping block; 21. limit protrusion; 61. rotating shaft; 62. first limit surface; 63. second limit surface; 71. base; 72. push rod; 411. pressing shaft; 421. pressing groove; 441. elastic sheet. DETAILED DESCRIPTION

[0038] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Figure 1 This is a schematic diagram of the structure of a venous gluing gun with adjustable injection volume according to the utility model. Figure 2 This is a schematic diagram of the transmission structure of a venous gluing gun with adjustable injection volume according to the utility model. Figure 3 This is a cross-sectional view of a venous gluing gun with adjustable injection volume according to the utility model. Figure 4 This is a schematic diagram of the structure of a limit block of an intravenous gluing gun with adjustable injection volume according to the utility model. Figure 5 This is a schematic diagram of the structure of the limiting convex strip and the first limiting surface of the intravenous gluing gun with adjustable injection volume of the utility model. Figure 6 This is a schematic diagram of the structure of the limiting convex strip and the second limiting surface of the intravenous gluing gun with adjustable injection volume of the utility model. Figure 7 This is a schematic diagram of the structure of the ratchet and the ratchet strip of the intravenous glue gun with adjustable injection volume of the utility model being disengaged from each other. Figure 8 This is a schematic diagram of the structure of the syringe of the intravenous gluing gun with adjustable injection volume after assembly according to the utility model. Fig. 9 This is a cross-sectional view of the syringe of the intravenous glue gun with adjustable injection volume after assembly, as shown in FIG. Figure 1-9 As shown, a preferred embodiment of an intravenous gluing gun with adjustable injection volume is shown, including a shell 1, a push rod 3, a button 2, a transmission mechanism 4 and a rotation control structure. One side of the shell 1 has a push channel 12 for placing the push rod 72 of the syringe 7, and one side of the push channel 12 has a card slot 11 for clamping the base 71 of the syringe 7. The push rod 3 is movably installed in the shell 1, and one end of the push rod 3 extends into the push channel 12 and is in limited contact with the push rod 72 of the syringe 7. The other end of the push rod 3 extends to the outside of the shell 1, and the rotating end of the button 2 is rotatably installed in the shell 1. The transmission mechanism 4 is arranged between the button 2 and the push rod 3, and is used to convert the knob torque of the button 2 into a thrust for the forward movement of the push rod 3. The rotation control structure is arranged between the button 2 and the shell 1, and is used to control the maximum rotation angle of the button 2 to control the forward advancement distance of the push rod 3.

[0042] In this embodiment, the button 2 is pressed inward and the rotational torque of the button 2 is converted into a thrust for the forward movement of the push rod 3 through the transmission mechanism 4, so that the push rod 3 pushes the push rod 72 of the syringe 7 to inject glue. The rotation control structure can be used to control the maximum inward rotation angle of the button 2 to control the forward pushing displacement of the push rod 3, and then accurately control the glue output of the syringe 7, which not only reduces the operating difficulty of medical staff, but also greatly improves the treatment effect on patients.

[0043] Further, as a preferred embodiment, the rotation control structure includes a limit block 6, which is rotatably arranged in the shell 1, and a first limit surface 62 and a second limit surface 63 are circumferentially distributed on the limit block 6; wherein, a limit protrusion 21 is provided on the button 2, and the limit protrusion 21 is located below the limit block 6, and when the limit block 6 is rotated so that the first limit surface 62 / the second limit surface 63 is set downward, the limit protrusion 21 cooperates with the first limit surface 62 / the second limit surface 63 in a circumferential manner, and when the limit protrusion 21 is circumferentially limited with the first limit surface 62, the maximum rotation angle of the limit block 6 is greater than the circumferential limit time of the limit protrusion 21 and the second limit surface 63. The maximum rotation angle of the limit block 6, when a larger amount of glue is needed, the first limit surface 62 is distributed downward by rotating the limit block 6, and the button 2 is rotated by pressing the inner side pressing button 2, and the push rod 3 is pushed forward to make the syringe 7 discharge glue, until the limit protrusion 21 on the limit block 6 is limited and matched with the first limit surface 62, so as to complete a larger amount of glue discharge. When a smaller amount of glue is needed, the second limit surface 63 is distributed downward by rotating the limit block 6, and the button 2 is rotated by pressing the inner side pressing button 2, and the push rod 3 is pushed forward to make the syringe 7 discharge glue, until the limit protrusion 21 on the limit block 6 is limited and matched with the second limit surface 63, so as to complete a smaller amount of glue discharge.

[0044] Furthermore, as a preferred embodiment, in order to facilitate the rotation adjustment of the limit block 6 , the limit block 6 is rotatably installed in the shell 1 via a rotating shaft 61 , and both ends of the rotating shaft 61 extend to the outside of the shell 1 .

[0045] Furthermore, as a preferred embodiment, one end of the shell 1 has two clamping plates 13, one end of the two clamping plates 13 is respectively connected to the two sides of one end of the shell 1, and the other ends are respectively inclined toward the propulsion channel 12, and a clamping groove 11 is formed between the two clamping plates 13 and the shell 1. The push rod 72 of the syringe 7 is inserted into the propulsion channel 12, and the base 71 of the syringe 7 is set in the clamping groove 11. By rotating the syringe 7 ninety degrees, the two sides of the base 71 of the syringe 7 are respectively limited by the two clamping plates 13. When the propulsion rod 3 is pushed forward to drive the push rod 72 of the syringe 7 to move forward, the base 71 of the syringe 7 can be kept fixed to the gluing gun.

[0046] Furthermore, as a preferred embodiment, a reset torsion spring 5 is provided between the button 2 and the shell 1. The reset torsion spring 5 is installed in the shell 1, and one end of the reset torsion spring 5 is in contact with the inner limit of the other end of the button 2, and the other end is in contact with the limit of the shell 1, and the reset torsion spring 5 applies an elastic force to the button 2 to rotate outward.

[0047] Further, as a preferred embodiment, the transmission mechanism 4 includes a limit slider 42, a ratchet 41 and a limit torsion spring 43, the limit slider 42 can be longitudinally slidably installed in the housing 1, the limit slider 42 is movably sleeved on the outside of the push rod 3, and the bottom of the limit slider 42 has a pressing groove 421 with an opening on one side, the ratchet 41 is arranged below the push rod 3, and one end of the ratchet 41 is rotatably connected to the top of the button 2, and the side of the other end of the ratchet 41 has a pressing shaft 411, the pressing shaft 411 is movably arranged in the pressing groove 421, the push rod 3 is a ratchet bar, and the limit torsion spring 43 is arranged on the housing The limit torsion spring 43 is in the body 1, and one end of the limit torsion spring 43 is in limit contact with the limit slider 42, and the other end is in limit contact with the shell 1, which is used to apply an upward elastic force to the limit slider 42 to make the other end of the pawl 41 engage with the ratchet. When the injection of a tube of adhesive for injection is completed, the ratchet is pushed to the leftmost position as the button 2 is pressed. At this time, the limit slider 42 can be pressed downward to make the ratchet and the pawl 41 in a non-matching state, and the ratchet can be withdrawn. After withdrawing to the bottom, the syringe 7 can be reinserted to achieve the adjustable effect of the total injection volume or the function of replacing the syringe 7.

[0048] Furthermore, as a preferred embodiment, the shell 1 has a rib 14 inside, and the spine can be slidably installed in the rib 14 forward and backward.

[0049] Furthermore, as a preferred embodiment, the shell 1 also has a clamping block 44, which is sleeved on the outside of the ratchet, and has at least one elastic member inside the clamping block 44, one end of the elastic member is connected to the clamping block 44, and the other end is in contact with the ratchet, which is used to apply a downward elastic force to the ratchet to press the ratchet into the rib 14. When the button 2 is pressed to push the ratchet, the ratchet has a certain amount of room to move, and at the same time, the ratchet 41 and the teeth on the ratchet can fit more closely.

[0050] Preferably, the elastic member is an elastic sheet 441 , and two elastic sheets 441 are provided. The two elastic sheets 441 are distributed on both sides of the pressing block 44 along the length direction of the spine.

[0051] Furthermore, as a preferred embodiment, in order to facilitate pressing the limit slider 42 , the top of the limit slider 42 extends to the upper side of the housing 1 .

[0052] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A venous gluing gun with adjustable injection volume, characterized in that: include: A housing, one side of the housing having a propulsion channel for accommodating a push rod of the syringe, and one side of the propulsion channel having a card slot for clamping a base of the syringe; A push rod, wherein the push rod is movably mounted in the housing, one end of the push rod extends into the push channel and contacts with the push rod of the syringe, and the other end of the push rod extends to the outside of the housing; A button, one end of which is rotatably mounted in the housing; A transmission mechanism, the transmission mechanism is provided between the button and the push rod, and is used to convert the knob torque of the button into a thrust for the push rod to move forward; A rotation control structure is provided between the button and the housing and is used to control the maximum rotation angle of the button so as to control the forward advancement distance of the advancement rod.

2. The intravenous gluing gun with adjustable injection volume according to claim 1, characterized in that: The rotation control structure comprises: A limit block, the limit block is rotatably disposed in the housing, and the limit block has a first limit surface and a second limit surface distributed circumferentially thereon; In which, the button is provided with a limiting protrusion, and the limiting protrusion is located below the limiting block. When the limiting block is rotated so that the first limiting surface / the second limiting surface is set downward, the limiting protrusion cooperates with the first limiting surface / the second limiting surface in a circular limit, and when the limiting protrusion is circumferentially limited by the first limiting surface, the maximum rotation angle of the limiting block is greater than the maximum rotation angle of the limiting block when the limiting protrusion is circumferentially limited by the second limiting surface.

3. The intravenous gluing gun with adjustable injection volume according to claim 2, characterized in that: The limit block is rotatably installed in the shell through a rotating shaft, and both ends of the rotating shaft extend to the outside of the shell.

4. The intravenous gluing gun with adjustable injection volume according to claim 1, characterized in that: One end of the shell has two clamping plates, one end of the two clamping plates is respectively connected to the two sides of one end of the shell, and the other end is respectively inclined toward the propulsion channel, and the clamping groove is formed between the two clamping plates and the shell.

5. The intravenous gluing gun with adjustable injection volume according to claim 1, characterized in that: A return torsion spring is also provided between the button and the shell. The return torsion spring is installed in the shell, and one end of the return torsion spring abuts against the inner limit of the other end of the button, and the other end abuts against the limit of the shell, and the return torsion spring applies an elastic force to the button to rotate outward.

6. The intravenous gluing gun with adjustable injection volume according to claim 1, characterized in that: The transmission mechanism comprises: A limit slider, which can be longitudinally slidably installed in the housing, the limit slider is movably sleeved on the outside of the propulsion rod, and the bottom of the limit slider has a pressing groove with one side open; A ratchet, wherein the ratchet is arranged below the push rod, and one end of the ratchet is rotatably connected to the top of the button, and the side surface of the other end of the ratchet has a pressing shaft, and the pressing shaft is movably arranged in the pressing groove, and the push rod is a ratchet strip; A limit torsion spring is arranged in the shell, and one end of the limit torsion spring is in limit contact with the limit slider, and the other end is in limit contact with the shell, and is used to apply an upward elastic force to the limit slider to make the other end of the pawl engage with the ratchet bar.

7. The intravenous gluing gun with adjustable injection volume according to claim 6, characterized in that: The shell body is provided with ribs, and the spines are slidably installed in the ribs.

8. The intravenous gluing gun with adjustable injection volume according to claim 7, characterized in that: The shell also has a clamping block, which is sleeved on the outside of the ratchet bar and has at least one elastic member inside. One end of the elastic member is connected to the clamping block and the other end is in contact with the ratchet bar, so as to apply a downward elastic force to the ratchet bar to press the ratchet bar into the rib.

9. The intravenous gluing gun with adjustable injection volume according to claim 6, characterized in that: The top of the limiting sliding block extends to the upper side of the shell.

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