CN217697518U - Insulin syringe capable of slowly pushing medicine - Google Patents

Insulin syringe capable of slowly pushing medicine Download PDF

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Publication number
CN217697518U
CN217697518U CN202122039483.4U CN202122039483U CN217697518U CN 217697518 U CN217697518 U CN 217697518U CN 202122039483 U CN202122039483 U CN 202122039483U CN 217697518 U CN217697518 U CN 217697518U
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CN
China
Prior art keywords
cavity
piston head
medicine
holding tube
propelling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202122039483.4U
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Chinese (zh)
Inventor
王欢欢
李星辰
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Tianjin University of Science and Technology
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Tianjin University of Science and Technology
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Application filed by Tianjin University of Science and Technology filed Critical Tianjin University of Science and Technology
Priority to CN202122039483.4U priority Critical patent/CN217697518U/en
Application granted granted Critical
Publication of CN217697518U publication Critical patent/CN217697518U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides an insulin syringe capable of slowly pushing medicine, which comprises a pushing cavity, a buffer cavity and a medicine cavity which are arranged along the axial direction of a holding tube in sequence; a propelling block is arranged in the propelling cavity and can move along the axial direction of the holding tube; damping media are filled in the buffer cavity, a first piston head is arranged in the buffer cavity and divides the buffer cavity into an upper layer and a lower layer, a control rod extends upwards from the top end of the first piston head, the top end of the control rod is arranged in the propelling cavity, and a spring is arranged between the top end of the control rod and the propelling block; the medicine cavity is internally provided with a second piston head which moves synchronously with the first piston head. The utility model discloses a spring and damping medium cooperation, when using, will advance the piece earlier and push down for the spring atress compression makes the spring exert pressure to the control lever, makes the control lever to the motion of medicine chamber direction, through the rate of motion of damping medium and first piston head control lever, prevents that liquid medicine advancing speed is too fast, causes the discomfort to the patient.

Description

Insulin syringe capable of slowly pushing medicine
Technical Field
The utility model belongs to the field of medical supplies, in particular to an insulin syringe capable of slowly pushing medicine.
Background
Diabetes is a group of metabolic diseases characterized by hyperglycemia. Hyperglycemia is caused by insulin secretion defect or impaired biological effect, and most of diabetics adopt insulin injected at home to control self-blood sugar along with the improvement of treatment means;
however, during the insulin injection, since most patients are not trained to perform the injection, the conventional syringe is not suitable for controlling the advancing speed of the liquid medicine during the insulin injection.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to an insulin syringe capable of slowly pushing a drug, so as to reduce the difficulty of using the syringe, and facilitate the patient to inject insulin by himself.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
an insulin syringe capable of slowly pushing medicine comprises a holding tube, wherein a pushing cavity, a buffer cavity and a medicine cavity are sequentially arranged in the holding tube along the axial direction of the holding tube;
a propelling block is arranged in the propelling cavity and can move along the axial direction of the holding tube;
the damping medium is filled in the buffer cavity, a first piston head is arranged in the buffer cavity and divides the buffer cavity into an upper layer and a lower layer, the first piston head can move along the axial direction of the holding tube, a control rod extends upwards from the top end of the first piston head, the control rod penetrates through the buffer cavity and is arranged in the pushing cavity, a spring is arranged between the top end of the control rod and the pushing block, one end of the spring abuts against the pushing block, the other end of the spring abuts against the top end of the control rod, and a liquid passing hole is formed in the first piston head;
the medicine cavity is internally provided with a second piston head which moves synchronously with the first piston head.
Furthermore, the side wall of the holding tube is provided with a through hole, a pressure head is arranged in the through hole, the inner side of the pressure head is obliquely provided with a guide surface, the top end of the propelling block is provided with a contact surface corresponding to the guide surface, and when the pressure head moves into the holding tube, the propelling block moves towards the direction of the medicine cavity.
Furthermore, the bottom end of the propelling block extends downwards to form a guide post, the top end of the control rod extends upwards to form a guide pipe, the guide post is inserted into the guide pipe, and the spring is sleeved outside the guide pipe and the guide post.
Furthermore, a sliding hole is formed in the side wall of the holding tube, the length direction of the sliding hole is parallel to the axial direction of the holding tube, a sliding block extends outwards from the control rod, and the sliding block penetrates through the sliding hole and is arranged outside the holding tube.
Further, the length of the sliding hole is larger than the movement distance of the pushing block.
Furthermore, the first piston head extends downwards to form a linkage rod, and the linkage rod penetrates through the buffer cavity to enter the medicine cavity to be fixedly connected with the second piston head.
Furthermore, the side wall of the holding tube is provided with an air hole, the air hole is arranged at the top of the medicine cavity, and the second piston head is arranged below the air hole.
Furthermore, a connecting mouth used for being connected with the needle head is arranged at the end part of the medicine cavity.
Compared with the prior art, the insulin syringe capable of slowly pushing the medicine has the following advantages:
the utility model discloses a spring and damping medium cooperation, when using, will advance the piece earlier and push down for the spring atress compression makes the spring exert pressure to the control lever, makes the control lever to the motion of medicine chamber direction, through the rate of motion of damping medium and first piston head control lever, prevents that liquid medicine advancing speed is too fast, causes the discomfort to the patient.
The pressure head is arranged on the side of the holding tube, so that a patient can hold the injector with one hand and inject at the same time;
the first piston head and the second piston head are controlled to move in a sliding block mode so as to control the second piston head to move and draw liquid medicine.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic view of the overall structure of the syringe;
FIG. 2 is a schematic cross-sectional view of the internal structure of the syringe;
fig. 3 is a schematic view of the matching structure of the pressing head and the pushing block.
Description of the reference numerals:
1-holding the tube; 11-a through hole; 12-a slide hole; 13-air holes; 2-a propulsion chamber; 21-a propulsion block; 211-contact surface; 23-pressure head; 231-a guide surface; 232-guide post; 24-a control lever; 241-a guide tube; 242-a slider; 25-a spring; 3-a buffer chamber; 31-linkage; 32-a first piston head; 321-liquid passing holes; 4-medicine cavity; 41-a second piston head; 42-connecting mouth.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The insulin syringe capable of slowly pushing the medicine comprises a holding tube 1, wherein a pushing cavity 2, a buffering cavity 3 and a medicine cavity 4 are sequentially arranged in the holding tube 1 along the axial direction of the holding tube 1, for the convenience of production, the holding tube 1 can be a complete pipe fitting, and the holding tube 1 is divided into the pushing cavity 2, the buffering cavity 3 and the medicine cavity 4 by corresponding partition plates in the middle of the pipe fitting; or respectively producing shells of the propelling cavity 2, the buffering cavity 3 and the medicine cavity 4, and then combining the three shells to form the holding tube 1; the holding tube 1 can be a complete tube, and the propelling cavity 2, the buffering cavity 3 and the medicine cavity 4 are respectively independent cavities and are fixedly arranged at different positions in the holding tube 1.
Specifically, a propelling block 21 is arranged in the propelling cavity 2, the propelling block 21 can move along the axial direction of the holding tube 1, a through hole 11 is formed in the side wall of the propelling cavity 2 of the holding tube 1, a pressure head 23 is arranged in the through hole 11, a guide surface 231 is obliquely formed on the inner side of the pressure head 23, a contact surface 211 corresponding to the guide surface 231 is arranged at the top end of the propelling block 21, when the pressure head 23 moves towards the inside of the holding tube 1, the guide surface 231 is in contact with the contact surface 211, and then the propelling block 21 is extruded to move towards the direction of the medicine cavity 4 along with the movement of the pressure head 23 towards the inside of the holding tube 1;
the buffering cavity 3 is internally provided with a first piston head 32, the first piston head 32 divides the buffering cavity 3 into an upper layer and a lower layer, damping media are filled in the upper layer and the lower layer, the first piston head 32 can move along the axial direction of the holding tube 1, a liquid passing hole 321 is formed in the peripheral side of the first piston head 32, the damping media can pass through the liquid passing hole 321 and flow from one side of the piston head to the other side, the liquid passing hole 321 is small, so that the damping media slowly flow from one side of the piston head to the other side of the piston head, a person skilled in the art knows that the damping media can be liquid such as silicone oil, castor oil and the like, the top end of the first piston head 32 extends upwards to form a control rod 24, the control rod 24 passes through the buffering cavity 3, and a sliding seal is arranged between the top wall of the buffering cavity 3 and the side wall of the control rod 24, the damping medium is prevented from flowing out and is arranged in the propelling cavity 2, a spring 25 is arranged between the top end of the control rod 24 and the propelling block 21, one end of the spring 25 abuts against the propelling block 21, the other end of the spring abuts against the top end of the control rod 24, the bottom end of the propelling block 21 extends downwards to form a guide column 232, the top end of the control rod 24 extends upwards to form a guide tube 241, the guide column 232 is inserted into the guide tube 241, the spring 25 is sleeved outside the guide tube 241 and the guide column 232, when the propelling block 21 moves towards the medicine cavity 4 direction during work, the spring 25 is stressed to contract, and in the contraction process of the spring 25, pressure is continuously applied to the control rod 24, at the moment, the first piston head 32 moves towards the medicine cavity 4 direction, but the movement speed of the first piston head 32 is slowed down due to the slow flowing of the damping medium;
the second piston head 41 is arranged in the medicine cavity 4, the first piston head 32 extends out of the linkage rod 31 towards the medicine cavity 4, the end part of the linkage rod is fixedly connected with the second piston head 41, so that the second piston head 41 and the second piston head move synchronously, the linkage rod is connected with the bottom of the buffer cavity 3 in a sliding and sealing mode, damping media are prevented from flowing out of the buffer cavity 3, and when the first piston head 32 moves towards the medicine cavity 4, the second piston port moves downwards, and liquid medicine is pushed to be injected.
In order to control the movement of the two piston heads and facilitate the suction of liquid medicine into the medicine cavity 4, the holding tube 1 is provided with a sliding hole 12 on the side wall of the pushing cavity 2, the length direction of the sliding hole 12 is parallel to the axial direction of the holding tube 1, the control rod 24 extends outwards to form a sliding block 242, the sliding block 242 penetrates through the sliding hole 12 and is arranged outside the holding tube 1, an operator can control the movement of the first piston head 32 and the second piston head 41 by pushing the sliding block 242, and the length of the sliding hole 12 is greater than the movement distance of the pushing block 21.
The side wall of the holding tube 1 is provided with an air hole 13, the air hole 13 is arranged at the top of the medicine cavity 4, the second piston head 41 is arranged below the air hole 13, and when the second piston head 41 moves, air is filled above the second piston head 41 through the air hole 13, so that the air pressure above the second piston head 41 is balanced with the outside.
The end of the medicine cavity 4 is provided with a connecting mouth 42 used for connecting with a needle for connecting with the needle.
The inside of the pressure head outwards extends to form a flanging, so that the pressure head is prevented from outwards jumping out.
Can slowly push away insulin syringe of medicine, in the course of the work, install the syringe needle on connecting nozzle 42 earlier, promote slider 242 and arrange the position of below in, drive the motion of second piston head 41, the air in the discharge medicine chamber 4, later insert the syringe needle in the medicine bottle (like the ampoule), upwards promote slider 242, make second piston head 41 upward movement, make the liquid medicine fill medicine chamber 4, later lift medicine chamber 4, promote slider 242 to medicine chamber 4 direction, utilize the air in the second piston head 41 discharge medicine chamber 4, in order to guarantee spring 25's the effect of exerting pressure, spring 25 this moment is in slight compression state, make spring 25 both ends tightly support in control lever 24 tip and propulsion block 21 tip, later handheld with the syringe needle puncture treat the injection part, press pressure head 23, make spring 25 shrink, under spring 25's pressure effect, first piston head 32 and second piston head 41 move, it gets into the patient internal to promote the liquid medicine, it is static until second piston head 41, accomplish once injection, on upwards promoting the slider, drive spring head and propulsion block, make the piston head move upwards.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. An insulin syringe capable of slowly pushing medicine is characterized in that: comprises a holding tube (1), wherein a propelling cavity (2), a buffer cavity (3) and a medicine cavity (4) are sequentially arranged in the holding tube (1) along the axial direction of the holding tube;
a propelling block (21) is arranged in the propelling cavity (2), and the propelling block (21) can move along the axial direction of the holding tube (1);
the damping cavity (3) is filled with damping media, a first piston head (32) is arranged in the buffering cavity (3) and divides the buffering cavity (3) into an upper layer and a lower layer, the first piston head (32) can move along the axial direction of the holding tube (1), the top end of the first piston head (32) extends upwards to form a control rod (24), the control rod (24) penetrates through the buffering cavity (3) and is arranged in the propelling cavity (2), a spring (25) is arranged between the top end of the control rod (24) and the propelling block (21), one end of the spring (25) abuts against the propelling block (21) and the other end of the spring abuts against the top end of the control rod (24), and a liquid passing hole (321) is formed in the first piston head (32);
the medicine cavity (4) is internally provided with a second piston head (41), and the second piston head (41) and the first piston head (32) move synchronously.
2. An insulin syringe capable of slowly pushing a drug according to claim 1, wherein: the side wall of the holding tube (1) is provided with a through hole (11), a pressure head (23) is arranged in the through hole (11), the inner side of the pressure head (23) is obliquely provided with a guide surface (231), the top end of the propelling block (21) is provided with a contact surface corresponding to the guide surface (231), and when the pressure head (23) moves towards the inside of the holding tube (1), the propelling block (21) moves towards the direction of the medicine cavity (4).
3. An insulin syringe capable of slowly pushing a drug according to claim 1, wherein: the bottom end of the propelling block (21) downwards extends out of the guide column (232), the top end of the control rod (24) upwards extends out of the guide pipe (241), the guide column (232) is inserted into the guide pipe (241), and the spring (25) is sleeved outside the guide pipe (241) and the guide column (232).
4. An insulin pump capable of slowly pushing medicine according to claim 1, wherein: the side wall of the holding tube (1) is provided with a sliding hole (12), the length direction of the sliding hole (12) is parallel to the axial direction of the holding tube (1), the control rod (24) extends outwards to form a sliding block (242), and the sliding block (242) penetrates through the sliding hole (12) and is arranged outside the holding tube (1).
5. An insulin syringe capable of slowly pushing a drug according to claim 4, wherein: the length of the sliding hole (12) is larger than the movement distance of the propelling block (21).
6. An insulin syringe capable of slowly pushing a drug according to claim 1, wherein: the first piston head (32) extends downwards to form a linkage rod (31), and the linkage rod (31) penetrates through the buffer cavity (3) to enter the medicine cavity (4) and is fixedly connected with the second piston head (41).
7. An insulin pump capable of slowly pushing medicine according to claim 1, wherein: an air hole (13) is formed in the side wall of the holding tube (1), the air hole is formed in the top of the medicine cavity (4), and the second piston head (41) is arranged below the air hole (13).
8. An insulin syringe capable of slowly pushing a drug according to claim 1, wherein: the end part of the medicine cavity (4) is provided with a connecting nozzle (42) used for being connected with a needle head.
CN202122039483.4U 2021-08-27 2021-08-27 Insulin syringe capable of slowly pushing medicine Expired - Fee Related CN217697518U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122039483.4U CN217697518U (en) 2021-08-27 2021-08-27 Insulin syringe capable of slowly pushing medicine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122039483.4U CN217697518U (en) 2021-08-27 2021-08-27 Insulin syringe capable of slowly pushing medicine

Publications (1)

Publication Number Publication Date
CN217697518U true CN217697518U (en) 2022-11-01

Family

ID=83774102

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122039483.4U Expired - Fee Related CN217697518U (en) 2021-08-27 2021-08-27 Insulin syringe capable of slowly pushing medicine

Country Status (1)

Country Link
CN (1) CN217697518U (en)

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20221101